bilingo-ui/eslib/Editor/index.js

import { c as createCommonjsModule, a as commonjsGlobal, u as unwrapExports, s as styleInject, j as _slicedToArray, b as _inherits$c, d as _createClass, e as _classCallCheck$h, f as _possibleConstructorReturn$c, h as _getPrototypeOf, _ as _defineProperty$1, k as _assertThisInitialized } from '../style-inject.es-b888177c.js';
import React, { useState, useMemo } from 'react';
import reactDom from 'react-dom';
import server from 'react-dom/server';

/*
object-assign
(c) Sindre Sorhus
@license MIT
*/
/* eslint-disable no-unused-vars */
var getOwnPropertySymbols = Object.getOwnPropertySymbols;
var hasOwnProperty = Object.prototype.hasOwnProperty;
var propIsEnumerable = Object.prototype.propertyIsEnumerable;

function toObject(val) {
	if (val === null || val === undefined) {
		throw new TypeError('Object.assign cannot be called with null or undefined');
	}

	return Object(val);
}

function shouldUseNative() {
	try {
		if (!Object.assign) {
			return false;
		}

		// Detect buggy property enumeration order in older V8 versions.

		// https://bugs.chromium.org/p/v8/issues/detail?id=4118
		var test1 = new String('abc');  // eslint-disable-line no-new-wrappers
		test1[5] = 'de';
		if (Object.getOwnPropertyNames(test1)[0] === '5') {
			return false;
		}

		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
		var test2 = {};
		for (var i = 0; i < 10; i++) {
			test2['_' + String.fromCharCode(i)] = i;
		}
		var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
			return test2[n];
		});
		if (order2.join('') !== '0123456789') {
			return false;
		}

		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
		var test3 = {};
		'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
			test3[letter] = letter;
		});
		if (Object.keys(Object.assign({}, test3)).join('') !==
				'abcdefghijklmnopqrst') {
			return false;
		}

		return true;
	} catch (err) {
		// We don't expect any of the above to throw, but better to be safe.
		return false;
	}
}

var objectAssign = shouldUseNative() ? Object.assign : function (target, source) {
	var from;
	var to = toObject(target);
	var symbols;

	for (var s = 1; s < arguments.length; s++) {
		from = Object(arguments[s]);

		for (var key in from) {
			if (hasOwnProperty.call(from, key)) {
				to[key] = from[key];
			}
		}

		if (getOwnPropertySymbols) {
			symbols = getOwnPropertySymbols(from);
			for (var i = 0; i < symbols.length; i++) {
				if (propIsEnumerable.call(from, symbols[i])) {
					to[symbols[i]] = from[symbols[i]];
				}
			}
		}
	}

	return to;
};

var immutable = createCommonjsModule(function (module, exports) {
/**
 *  Copyright (c) 2014-2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

(function (global, factory) {
   module.exports = factory() ;
}(commonjsGlobal, function () {var SLICE$0 = Array.prototype.slice;

  function createClass(ctor, superClass) {
    if (superClass) {
      ctor.prototype = Object.create(superClass.prototype);
    }
    ctor.prototype.constructor = ctor;
  }

  function Iterable(value) {
      return isIterable(value) ? value : Seq(value);
    }


  createClass(KeyedIterable, Iterable);
    function KeyedIterable(value) {
      return isKeyed(value) ? value : KeyedSeq(value);
    }


  createClass(IndexedIterable, Iterable);
    function IndexedIterable(value) {
      return isIndexed(value) ? value : IndexedSeq(value);
    }


  createClass(SetIterable, Iterable);
    function SetIterable(value) {
      return isIterable(value) && !isAssociative(value) ? value : SetSeq(value);
    }



  function isIterable(maybeIterable) {
    return !!(maybeIterable && maybeIterable[IS_ITERABLE_SENTINEL]);
  }

  function isKeyed(maybeKeyed) {
    return !!(maybeKeyed && maybeKeyed[IS_KEYED_SENTINEL]);
  }

  function isIndexed(maybeIndexed) {
    return !!(maybeIndexed && maybeIndexed[IS_INDEXED_SENTINEL]);
  }

  function isAssociative(maybeAssociative) {
    return isKeyed(maybeAssociative) || isIndexed(maybeAssociative);
  }

  function isOrdered(maybeOrdered) {
    return !!(maybeOrdered && maybeOrdered[IS_ORDERED_SENTINEL]);
  }

  Iterable.isIterable = isIterable;
  Iterable.isKeyed = isKeyed;
  Iterable.isIndexed = isIndexed;
  Iterable.isAssociative = isAssociative;
  Iterable.isOrdered = isOrdered;

  Iterable.Keyed = KeyedIterable;
  Iterable.Indexed = IndexedIterable;
  Iterable.Set = SetIterable;


  var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';
  var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';
  var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';
  var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';

  // Used for setting prototype methods that IE8 chokes on.
  var DELETE = 'delete';

  // Constants describing the size of trie nodes.
  var SHIFT = 5; // Resulted in best performance after ______?
  var SIZE = 1 << SHIFT;
  var MASK = SIZE - 1;

  // A consistent shared value representing "not set" which equals nothing other
  // than itself, and nothing that could be provided externally.
  var NOT_SET = {};

  // Boolean references, Rough equivalent of `bool &`.
  var CHANGE_LENGTH = { value: false };
  var DID_ALTER = { value: false };

  function MakeRef(ref) {
    ref.value = false;
    return ref;
  }

  function SetRef(ref) {
    ref && (ref.value = true);
  }

  // A function which returns a value representing an "owner" for transient writes
  // to tries. The return value will only ever equal itself, and will not equal
  // the return of any subsequent call of this function.
  function OwnerID() {}

  // http://jsperf.com/copy-array-inline
  function arrCopy(arr, offset) {
    offset = offset || 0;
    var len = Math.max(0, arr.length - offset);
    var newArr = new Array(len);
    for (var ii = 0; ii < len; ii++) {
      newArr[ii] = arr[ii + offset];
    }
    return newArr;
  }

  function ensureSize(iter) {
    if (iter.size === undefined) {
      iter.size = iter.__iterate(returnTrue);
    }
    return iter.size;
  }

  function wrapIndex(iter, index) {
    // This implements "is array index" which the ECMAString spec defines as:
    //
    //     A String property name P is an array index if and only if
    //     ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal
    //     to 2^32−1.
    //
    // http://www.ecma-international.org/ecma-262/6.0/#sec-array-exotic-objects
    if (typeof index !== 'number') {
      var uint32Index = index >>> 0; // N >>> 0 is shorthand for ToUint32
      if ('' + uint32Index !== index || uint32Index === 4294967295) {
        return NaN;
      }
      index = uint32Index;
    }
    return index < 0 ? ensureSize(iter) + index : index;
  }

  function returnTrue() {
    return true;
  }

  function wholeSlice(begin, end, size) {
    return (begin === 0 || (size !== undefined && begin <= -size)) &&
      (end === undefined || (size !== undefined && end >= size));
  }

  function resolveBegin(begin, size) {
    return resolveIndex(begin, size, 0);
  }

  function resolveEnd(end, size) {
    return resolveIndex(end, size, size);
  }

  function resolveIndex(index, size, defaultIndex) {
    return index === undefined ?
      defaultIndex :
      index < 0 ?
        Math.max(0, size + index) :
        size === undefined ?
          index :
          Math.min(size, index);
  }

  /* global Symbol */

  var ITERATE_KEYS = 0;
  var ITERATE_VALUES = 1;
  var ITERATE_ENTRIES = 2;

  var REAL_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
  var FAUX_ITERATOR_SYMBOL = '@@iterator';

  var ITERATOR_SYMBOL = REAL_ITERATOR_SYMBOL || FAUX_ITERATOR_SYMBOL;


  function Iterator(next) {
      this.next = next;
    }

    Iterator.prototype.toString = function() {
      return '[Iterator]';
    };


  Iterator.KEYS = ITERATE_KEYS;
  Iterator.VALUES = ITERATE_VALUES;
  Iterator.ENTRIES = ITERATE_ENTRIES;

  Iterator.prototype.inspect =
  Iterator.prototype.toSource = function () { return this.toString(); };
  Iterator.prototype[ITERATOR_SYMBOL] = function () {
    return this;
  };


  function iteratorValue(type, k, v, iteratorResult) {
    var value = type === 0 ? k : type === 1 ? v : [k, v];
    iteratorResult ? (iteratorResult.value = value) : (iteratorResult = {
      value: value, done: false
    });
    return iteratorResult;
  }

  function iteratorDone() {
    return { value: undefined, done: true };
  }

  function hasIterator(maybeIterable) {
    return !!getIteratorFn(maybeIterable);
  }

  function isIterator(maybeIterator) {
    return maybeIterator && typeof maybeIterator.next === 'function';
  }

  function getIterator(iterable) {
    var iteratorFn = getIteratorFn(iterable);
    return iteratorFn && iteratorFn.call(iterable);
  }

  function getIteratorFn(iterable) {
    var iteratorFn = iterable && (
      (REAL_ITERATOR_SYMBOL && iterable[REAL_ITERATOR_SYMBOL]) ||
      iterable[FAUX_ITERATOR_SYMBOL]
    );
    if (typeof iteratorFn === 'function') {
      return iteratorFn;
    }
  }

  function isArrayLike(value) {
    return value && typeof value.length === 'number';
  }

  createClass(Seq, Iterable);
    function Seq(value) {
      return value === null || value === undefined ? emptySequence() :
        isIterable(value) ? value.toSeq() : seqFromValue(value);
    }

    Seq.of = function(/*...values*/) {
      return Seq(arguments);
    };

    Seq.prototype.toSeq = function() {
      return this;
    };

    Seq.prototype.toString = function() {
      return this.__toString('Seq {', '}');
    };

    Seq.prototype.cacheResult = function() {
      if (!this._cache && this.__iterateUncached) {
        this._cache = this.entrySeq().toArray();
        this.size = this._cache.length;
      }
      return this;
    };

    // abstract __iterateUncached(fn, reverse)

    Seq.prototype.__iterate = function(fn, reverse) {
      return seqIterate(this, fn, reverse, true);
    };

    // abstract __iteratorUncached(type, reverse)

    Seq.prototype.__iterator = function(type, reverse) {
      return seqIterator(this, type, reverse, true);
    };



  createClass(KeyedSeq, Seq);
    function KeyedSeq(value) {
      return value === null || value === undefined ?
        emptySequence().toKeyedSeq() :
        isIterable(value) ?
          (isKeyed(value) ? value.toSeq() : value.fromEntrySeq()) :
          keyedSeqFromValue(value);
    }

    KeyedSeq.prototype.toKeyedSeq = function() {
      return this;
    };



  createClass(IndexedSeq, Seq);
    function IndexedSeq(value) {
      return value === null || value === undefined ? emptySequence() :
        !isIterable(value) ? indexedSeqFromValue(value) :
        isKeyed(value) ? value.entrySeq() : value.toIndexedSeq();
    }

    IndexedSeq.of = function(/*...values*/) {
      return IndexedSeq(arguments);
    };

    IndexedSeq.prototype.toIndexedSeq = function() {
      return this;
    };

    IndexedSeq.prototype.toString = function() {
      return this.__toString('Seq [', ']');
    };

    IndexedSeq.prototype.__iterate = function(fn, reverse) {
      return seqIterate(this, fn, reverse, false);
    };

    IndexedSeq.prototype.__iterator = function(type, reverse) {
      return seqIterator(this, type, reverse, false);
    };



  createClass(SetSeq, Seq);
    function SetSeq(value) {
      return (
        value === null || value === undefined ? emptySequence() :
        !isIterable(value) ? indexedSeqFromValue(value) :
        isKeyed(value) ? value.entrySeq() : value
      ).toSetSeq();
    }

    SetSeq.of = function(/*...values*/) {
      return SetSeq(arguments);
    };

    SetSeq.prototype.toSetSeq = function() {
      return this;
    };



  Seq.isSeq = isSeq;
  Seq.Keyed = KeyedSeq;
  Seq.Set = SetSeq;
  Seq.Indexed = IndexedSeq;

  var IS_SEQ_SENTINEL = '@@__IMMUTABLE_SEQ__@@';

  Seq.prototype[IS_SEQ_SENTINEL] = true;



  createClass(ArraySeq, IndexedSeq);
    function ArraySeq(array) {
      this._array = array;
      this.size = array.length;
    }

    ArraySeq.prototype.get = function(index, notSetValue) {
      return this.has(index) ? this._array[wrapIndex(this, index)] : notSetValue;
    };

    ArraySeq.prototype.__iterate = function(fn, reverse) {
      var array = this._array;
      var maxIndex = array.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        if (fn(array[reverse ? maxIndex - ii : ii], ii, this) === false) {
          return ii + 1;
        }
      }
      return ii;
    };

    ArraySeq.prototype.__iterator = function(type, reverse) {
      var array = this._array;
      var maxIndex = array.length - 1;
      var ii = 0;
      return new Iterator(function() 
        {return ii > maxIndex ?
          iteratorDone() :
          iteratorValue(type, ii, array[reverse ? maxIndex - ii++ : ii++])}
      );
    };



  createClass(ObjectSeq, KeyedSeq);
    function ObjectSeq(object) {
      var keys = Object.keys(object);
      this._object = object;
      this._keys = keys;
      this.size = keys.length;
    }

    ObjectSeq.prototype.get = function(key, notSetValue) {
      if (notSetValue !== undefined && !this.has(key)) {
        return notSetValue;
      }
      return this._object[key];
    };

    ObjectSeq.prototype.has = function(key) {
      return this._object.hasOwnProperty(key);
    };

    ObjectSeq.prototype.__iterate = function(fn, reverse) {
      var object = this._object;
      var keys = this._keys;
      var maxIndex = keys.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        var key = keys[reverse ? maxIndex - ii : ii];
        if (fn(object[key], key, this) === false) {
          return ii + 1;
        }
      }
      return ii;
    };

    ObjectSeq.prototype.__iterator = function(type, reverse) {
      var object = this._object;
      var keys = this._keys;
      var maxIndex = keys.length - 1;
      var ii = 0;
      return new Iterator(function()  {
        var key = keys[reverse ? maxIndex - ii : ii];
        return ii++ > maxIndex ?
          iteratorDone() :
          iteratorValue(type, key, object[key]);
      });
    };

  ObjectSeq.prototype[IS_ORDERED_SENTINEL] = true;


  createClass(IterableSeq, IndexedSeq);
    function IterableSeq(iterable) {
      this._iterable = iterable;
      this.size = iterable.length || iterable.size;
    }

    IterableSeq.prototype.__iterateUncached = function(fn, reverse) {
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterable = this._iterable;
      var iterator = getIterator(iterable);
      var iterations = 0;
      if (isIterator(iterator)) {
        var step;
        while (!(step = iterator.next()).done) {
          if (fn(step.value, iterations++, this) === false) {
            break;
          }
        }
      }
      return iterations;
    };

    IterableSeq.prototype.__iteratorUncached = function(type, reverse) {
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterable = this._iterable;
      var iterator = getIterator(iterable);
      if (!isIterator(iterator)) {
        return new Iterator(iteratorDone);
      }
      var iterations = 0;
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step : iteratorValue(type, iterations++, step.value);
      });
    };



  createClass(IteratorSeq, IndexedSeq);
    function IteratorSeq(iterator) {
      this._iterator = iterator;
      this._iteratorCache = [];
    }

    IteratorSeq.prototype.__iterateUncached = function(fn, reverse) {
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterator = this._iterator;
      var cache = this._iteratorCache;
      var iterations = 0;
      while (iterations < cache.length) {
        if (fn(cache[iterations], iterations++, this) === false) {
          return iterations;
        }
      }
      var step;
      while (!(step = iterator.next()).done) {
        var val = step.value;
        cache[iterations] = val;
        if (fn(val, iterations++, this) === false) {
          break;
        }
      }
      return iterations;
    };

    IteratorSeq.prototype.__iteratorUncached = function(type, reverse) {
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = this._iterator;
      var cache = this._iteratorCache;
      var iterations = 0;
      return new Iterator(function()  {
        if (iterations >= cache.length) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          cache[iterations] = step.value;
        }
        return iteratorValue(type, iterations, cache[iterations++]);
      });
    };




  // # pragma Helper functions

  function isSeq(maybeSeq) {
    return !!(maybeSeq && maybeSeq[IS_SEQ_SENTINEL]);
  }

  var EMPTY_SEQ;

  function emptySequence() {
    return EMPTY_SEQ || (EMPTY_SEQ = new ArraySeq([]));
  }

  function keyedSeqFromValue(value) {
    var seq =
      Array.isArray(value) ? new ArraySeq(value).fromEntrySeq() :
      isIterator(value) ? new IteratorSeq(value).fromEntrySeq() :
      hasIterator(value) ? new IterableSeq(value).fromEntrySeq() :
      typeof value === 'object' ? new ObjectSeq(value) :
      undefined;
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of [k, v] entries, '+
        'or keyed object: ' + value
      );
    }
    return seq;
  }

  function indexedSeqFromValue(value) {
    var seq = maybeIndexedSeqFromValue(value);
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of values: ' + value
      );
    }
    return seq;
  }

  function seqFromValue(value) {
    var seq = maybeIndexedSeqFromValue(value) ||
      (typeof value === 'object' && new ObjectSeq(value));
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of values, or keyed object: ' + value
      );
    }
    return seq;
  }

  function maybeIndexedSeqFromValue(value) {
    return (
      isArrayLike(value) ? new ArraySeq(value) :
      isIterator(value) ? new IteratorSeq(value) :
      hasIterator(value) ? new IterableSeq(value) :
      undefined
    );
  }

  function seqIterate(seq, fn, reverse, useKeys) {
    var cache = seq._cache;
    if (cache) {
      var maxIndex = cache.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        var entry = cache[reverse ? maxIndex - ii : ii];
        if (fn(entry[1], useKeys ? entry[0] : ii, seq) === false) {
          return ii + 1;
        }
      }
      return ii;
    }
    return seq.__iterateUncached(fn, reverse);
  }

  function seqIterator(seq, type, reverse, useKeys) {
    var cache = seq._cache;
    if (cache) {
      var maxIndex = cache.length - 1;
      var ii = 0;
      return new Iterator(function()  {
        var entry = cache[reverse ? maxIndex - ii : ii];
        return ii++ > maxIndex ?
          iteratorDone() :
          iteratorValue(type, useKeys ? entry[0] : ii - 1, entry[1]);
      });
    }
    return seq.__iteratorUncached(type, reverse);
  }

  function fromJS(json, converter) {
    return converter ?
      fromJSWith(converter, json, '', {'': json}) :
      fromJSDefault(json);
  }

  function fromJSWith(converter, json, key, parentJSON) {
    if (Array.isArray(json)) {
      return converter.call(parentJSON, key, IndexedSeq(json).map(function(v, k)  {return fromJSWith(converter, v, k, json)}));
    }
    if (isPlainObj(json)) {
      return converter.call(parentJSON, key, KeyedSeq(json).map(function(v, k)  {return fromJSWith(converter, v, k, json)}));
    }
    return json;
  }

  function fromJSDefault(json) {
    if (Array.isArray(json)) {
      return IndexedSeq(json).map(fromJSDefault).toList();
    }
    if (isPlainObj(json)) {
      return KeyedSeq(json).map(fromJSDefault).toMap();
    }
    return json;
  }

  function isPlainObj(value) {
    return value && (value.constructor === Object || value.constructor === undefined);
  }

  /**
   * An extension of the "same-value" algorithm as [described for use by ES6 Map
   * and Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Key_equality)
   *
   * NaN is considered the same as NaN, however -0 and 0 are considered the same
   * value, which is different from the algorithm described by
   * [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is).
   *
   * This is extended further to allow Objects to describe the values they
   * represent, by way of `valueOf` or `equals` (and `hashCode`).
   *
   * Note: because of this extension, the key equality of Immutable.Map and the
   * value equality of Immutable.Set will differ from ES6 Map and Set.
   *
   * ### Defining custom values
   *
   * The easiest way to describe the value an object represents is by implementing
   * `valueOf`. For example, `Date` represents a value by returning a unix
   * timestamp for `valueOf`:
   *
   *     var date1 = new Date(1234567890000); // Fri Feb 13 2009 ...
   *     var date2 = new Date(1234567890000);
   *     date1.valueOf(); // 1234567890000
   *     assert( date1 !== date2 );
   *     assert( Immutable.is( date1, date2 ) );
   *
   * Note: overriding `valueOf` may have other implications if you use this object
   * where JavaScript expects a primitive, such as implicit string coercion.
   *
   * For more complex types, especially collections, implementing `valueOf` may
   * not be performant. An alternative is to implement `equals` and `hashCode`.
   *
   * `equals` takes another object, presumably of similar type, and returns true
   * if the it is equal. Equality is symmetrical, so the same result should be
   * returned if this and the argument are flipped.
   *
   *     assert( a.equals(b) === b.equals(a) );
   *
   * `hashCode` returns a 32bit integer number representing the object which will
   * be used to determine how to store the value object in a Map or Set. You must
   * provide both or neither methods, one must not exist without the other.
   *
   * Also, an important relationship between these methods must be upheld: if two
   * values are equal, they *must* return the same hashCode. If the values are not
   * equal, they might have the same hashCode; this is called a hash collision,
   * and while undesirable for performance reasons, it is acceptable.
   *
   *     if (a.equals(b)) {
   *       assert( a.hashCode() === b.hashCode() );
   *     }
   *
   * All Immutable collections implement `equals` and `hashCode`.
   *
   */
  function is(valueA, valueB) {
    if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
      return true;
    }
    if (!valueA || !valueB) {
      return false;
    }
    if (typeof valueA.valueOf === 'function' &&
        typeof valueB.valueOf === 'function') {
      valueA = valueA.valueOf();
      valueB = valueB.valueOf();
      if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
        return true;
      }
      if (!valueA || !valueB) {
        return false;
      }
    }
    if (typeof valueA.equals === 'function' &&
        typeof valueB.equals === 'function' &&
        valueA.equals(valueB)) {
      return true;
    }
    return false;
  }

  function deepEqual(a, b) {
    if (a === b) {
      return true;
    }

    if (
      !isIterable(b) ||
      a.size !== undefined && b.size !== undefined && a.size !== b.size ||
      a.__hash !== undefined && b.__hash !== undefined && a.__hash !== b.__hash ||
      isKeyed(a) !== isKeyed(b) ||
      isIndexed(a) !== isIndexed(b) ||
      isOrdered(a) !== isOrdered(b)
    ) {
      return false;
    }

    if (a.size === 0 && b.size === 0) {
      return true;
    }

    var notAssociative = !isAssociative(a);

    if (isOrdered(a)) {
      var entries = a.entries();
      return b.every(function(v, k)  {
        var entry = entries.next().value;
        return entry && is(entry[1], v) && (notAssociative || is(entry[0], k));
      }) && entries.next().done;
    }

    var flipped = false;

    if (a.size === undefined) {
      if (b.size === undefined) {
        if (typeof a.cacheResult === 'function') {
          a.cacheResult();
        }
      } else {
        flipped = true;
        var _ = a;
        a = b;
        b = _;
      }
    }

    var allEqual = true;
    var bSize = b.__iterate(function(v, k)  {
      if (notAssociative ? !a.has(v) :
          flipped ? !is(v, a.get(k, NOT_SET)) : !is(a.get(k, NOT_SET), v)) {
        allEqual = false;
        return false;
      }
    });

    return allEqual && a.size === bSize;
  }

  createClass(Repeat, IndexedSeq);

    function Repeat(value, times) {
      if (!(this instanceof Repeat)) {
        return new Repeat(value, times);
      }
      this._value = value;
      this.size = times === undefined ? Infinity : Math.max(0, times);
      if (this.size === 0) {
        if (EMPTY_REPEAT) {
          return EMPTY_REPEAT;
        }
        EMPTY_REPEAT = this;
      }
    }

    Repeat.prototype.toString = function() {
      if (this.size === 0) {
        return 'Repeat []';
      }
      return 'Repeat [ ' + this._value + ' ' + this.size + ' times ]';
    };

    Repeat.prototype.get = function(index, notSetValue) {
      return this.has(index) ? this._value : notSetValue;
    };

    Repeat.prototype.includes = function(searchValue) {
      return is(this._value, searchValue);
    };

    Repeat.prototype.slice = function(begin, end) {
      var size = this.size;
      return wholeSlice(begin, end, size) ? this :
        new Repeat(this._value, resolveEnd(end, size) - resolveBegin(begin, size));
    };

    Repeat.prototype.reverse = function() {
      return this;
    };

    Repeat.prototype.indexOf = function(searchValue) {
      if (is(this._value, searchValue)) {
        return 0;
      }
      return -1;
    };

    Repeat.prototype.lastIndexOf = function(searchValue) {
      if (is(this._value, searchValue)) {
        return this.size;
      }
      return -1;
    };

    Repeat.prototype.__iterate = function(fn, reverse) {
      for (var ii = 0; ii < this.size; ii++) {
        if (fn(this._value, ii, this) === false) {
          return ii + 1;
        }
      }
      return ii;
    };

    Repeat.prototype.__iterator = function(type, reverse) {var this$0 = this;
      var ii = 0;
      return new Iterator(function() 
        {return ii < this$0.size ? iteratorValue(type, ii++, this$0._value) : iteratorDone()}
      );
    };

    Repeat.prototype.equals = function(other) {
      return other instanceof Repeat ?
        is(this._value, other._value) :
        deepEqual(other);
    };


  var EMPTY_REPEAT;

  function invariant(condition, error) {
    if (!condition) throw new Error(error);
  }

  createClass(Range, IndexedSeq);

    function Range(start, end, step) {
      if (!(this instanceof Range)) {
        return new Range(start, end, step);
      }
      invariant(step !== 0, 'Cannot step a Range by 0');
      start = start || 0;
      if (end === undefined) {
        end = Infinity;
      }
      step = step === undefined ? 1 : Math.abs(step);
      if (end < start) {
        step = -step;
      }
      this._start = start;
      this._end = end;
      this._step = step;
      this.size = Math.max(0, Math.ceil((end - start) / step - 1) + 1);
      if (this.size === 0) {
        if (EMPTY_RANGE) {
          return EMPTY_RANGE;
        }
        EMPTY_RANGE = this;
      }
    }

    Range.prototype.toString = function() {
      if (this.size === 0) {
        return 'Range []';
      }
      return 'Range [ ' +
        this._start + '...' + this._end +
        (this._step > 1 ? ' by ' + this._step : '') +
      ' ]';
    };

    Range.prototype.get = function(index, notSetValue) {
      return this.has(index) ?
        this._start + wrapIndex(this, index) * this._step :
        notSetValue;
    };

    Range.prototype.includes = function(searchValue) {
      var possibleIndex = (searchValue - this._start) / this._step;
      return possibleIndex >= 0 &&
        possibleIndex < this.size &&
        possibleIndex === Math.floor(possibleIndex);
    };

    Range.prototype.slice = function(begin, end) {
      if (wholeSlice(begin, end, this.size)) {
        return this;
      }
      begin = resolveBegin(begin, this.size);
      end = resolveEnd(end, this.size);
      if (end <= begin) {
        return new Range(0, 0);
      }
      return new Range(this.get(begin, this._end), this.get(end, this._end), this._step);
    };

    Range.prototype.indexOf = function(searchValue) {
      var offsetValue = searchValue - this._start;
      if (offsetValue % this._step === 0) {
        var index = offsetValue / this._step;
        if (index >= 0 && index < this.size) {
          return index
        }
      }
      return -1;
    };

    Range.prototype.lastIndexOf = function(searchValue) {
      return this.indexOf(searchValue);
    };

    Range.prototype.__iterate = function(fn, reverse) {
      var maxIndex = this.size - 1;
      var step = this._step;
      var value = reverse ? this._start + maxIndex * step : this._start;
      for (var ii = 0; ii <= maxIndex; ii++) {
        if (fn(value, ii, this) === false) {
          return ii + 1;
        }
        value += reverse ? -step : step;
      }
      return ii;
    };

    Range.prototype.__iterator = function(type, reverse) {
      var maxIndex = this.size - 1;
      var step = this._step;
      var value = reverse ? this._start + maxIndex * step : this._start;
      var ii = 0;
      return new Iterator(function()  {
        var v = value;
        value += reverse ? -step : step;
        return ii > maxIndex ? iteratorDone() : iteratorValue(type, ii++, v);
      });
    };

    Range.prototype.equals = function(other) {
      return other instanceof Range ?
        this._start === other._start &&
        this._end === other._end &&
        this._step === other._step :
        deepEqual(this, other);
    };


  var EMPTY_RANGE;

  createClass(Collection, Iterable);
    function Collection() {
      throw TypeError('Abstract');
    }


  createClass(KeyedCollection, Collection);function KeyedCollection() {}

  createClass(IndexedCollection, Collection);function IndexedCollection() {}

  createClass(SetCollection, Collection);function SetCollection() {}


  Collection.Keyed = KeyedCollection;
  Collection.Indexed = IndexedCollection;
  Collection.Set = SetCollection;

  var imul =
    typeof Math.imul === 'function' && Math.imul(0xffffffff, 2) === -2 ?
    Math.imul :
    function imul(a, b) {
      a = a | 0; // int
      b = b | 0; // int
      var c = a & 0xffff;
      var d = b & 0xffff;
      // Shift by 0 fixes the sign on the high part.
      return (c * d) + ((((a >>> 16) * d + c * (b >>> 16)) << 16) >>> 0) | 0; // int
    };

  // v8 has an optimization for storing 31-bit signed numbers.
  // Values which have either 00 or 11 as the high order bits qualify.
  // This function drops the highest order bit in a signed number, maintaining
  // the sign bit.
  function smi(i32) {
    return ((i32 >>> 1) & 0x40000000) | (i32 & 0xBFFFFFFF);
  }

  function hash(o) {
    if (o === false || o === null || o === undefined) {
      return 0;
    }
    if (typeof o.valueOf === 'function') {
      o = o.valueOf();
      if (o === false || o === null || o === undefined) {
        return 0;
      }
    }
    if (o === true) {
      return 1;
    }
    var type = typeof o;
    if (type === 'number') {
      var h = o | 0;
      if (h !== o) {
        h ^= o * 0xFFFFFFFF;
      }
      while (o > 0xFFFFFFFF) {
        o /= 0xFFFFFFFF;
        h ^= o;
      }
      return smi(h);
    }
    if (type === 'string') {
      return o.length > STRING_HASH_CACHE_MIN_STRLEN ? cachedHashString(o) : hashString(o);
    }
    if (typeof o.hashCode === 'function') {
      return o.hashCode();
    }
    if (type === 'object') {
      return hashJSObj(o);
    }
    if (typeof o.toString === 'function') {
      return hashString(o.toString());
    }
    throw new Error('Value type ' + type + ' cannot be hashed.');
  }

  function cachedHashString(string) {
    var hash = stringHashCache[string];
    if (hash === undefined) {
      hash = hashString(string);
      if (STRING_HASH_CACHE_SIZE === STRING_HASH_CACHE_MAX_SIZE) {
        STRING_HASH_CACHE_SIZE = 0;
        stringHashCache = {};
      }
      STRING_HASH_CACHE_SIZE++;
      stringHashCache[string] = hash;
    }
    return hash;
  }

  // http://jsperf.com/hashing-strings
  function hashString(string) {
    // This is the hash from JVM
    // The hash code for a string is computed as
    // s[0] * 31 ^ (n - 1) + s[1] * 31 ^ (n - 2) + ... + s[n - 1],
    // where s[i] is the ith character of the string and n is the length of
    // the string. We "mod" the result to make it between 0 (inclusive) and 2^31
    // (exclusive) by dropping high bits.
    var hash = 0;
    for (var ii = 0; ii < string.length; ii++) {
      hash = 31 * hash + string.charCodeAt(ii) | 0;
    }
    return smi(hash);
  }

  function hashJSObj(obj) {
    var hash;
    if (usingWeakMap) {
      hash = weakMap.get(obj);
      if (hash !== undefined) {
        return hash;
      }
    }

    hash = obj[UID_HASH_KEY];
    if (hash !== undefined) {
      return hash;
    }

    if (!canDefineProperty) {
      hash = obj.propertyIsEnumerable && obj.propertyIsEnumerable[UID_HASH_KEY];
      if (hash !== undefined) {
        return hash;
      }

      hash = getIENodeHash(obj);
      if (hash !== undefined) {
        return hash;
      }
    }

    hash = ++objHashUID;
    if (objHashUID & 0x40000000) {
      objHashUID = 0;
    }

    if (usingWeakMap) {
      weakMap.set(obj, hash);
    } else if (isExtensible !== undefined && isExtensible(obj) === false) {
      throw new Error('Non-extensible objects are not allowed as keys.');
    } else if (canDefineProperty) {
      Object.defineProperty(obj, UID_HASH_KEY, {
        'enumerable': false,
        'configurable': false,
        'writable': false,
        'value': hash
      });
    } else if (obj.propertyIsEnumerable !== undefined &&
               obj.propertyIsEnumerable === obj.constructor.prototype.propertyIsEnumerable) {
      // Since we can't define a non-enumerable property on the object
      // we'll hijack one of the less-used non-enumerable properties to
      // save our hash on it. Since this is a function it will not show up in
      // `JSON.stringify` which is what we want.
      obj.propertyIsEnumerable = function() {
        return this.constructor.prototype.propertyIsEnumerable.apply(this, arguments);
      };
      obj.propertyIsEnumerable[UID_HASH_KEY] = hash;
    } else if (obj.nodeType !== undefined) {
      // At this point we couldn't get the IE `uniqueID` to use as a hash
      // and we couldn't use a non-enumerable property to exploit the
      // dontEnum bug so we simply add the `UID_HASH_KEY` on the node
      // itself.
      obj[UID_HASH_KEY] = hash;
    } else {
      throw new Error('Unable to set a non-enumerable property on object.');
    }

    return hash;
  }

  // Get references to ES5 object methods.
  var isExtensible = Object.isExtensible;

  // True if Object.defineProperty works as expected. IE8 fails this test.
  var canDefineProperty = (function() {
    try {
      Object.defineProperty({}, '@', {});
      return true;
    } catch (e) {
      return false;
    }
  }());

  // IE has a `uniqueID` property on DOM nodes. We can construct the hash from it
  // and avoid memory leaks from the IE cloneNode bug.
  function getIENodeHash(node) {
    if (node && node.nodeType > 0) {
      switch (node.nodeType) {
        case 1: // Element
          return node.uniqueID;
        case 9: // Document
          return node.documentElement && node.documentElement.uniqueID;
      }
    }
  }

  // If possible, use a WeakMap.
  var usingWeakMap = typeof WeakMap === 'function';
  var weakMap;
  if (usingWeakMap) {
    weakMap = new WeakMap();
  }

  var objHashUID = 0;

  var UID_HASH_KEY = '__immutablehash__';
  if (typeof Symbol === 'function') {
    UID_HASH_KEY = Symbol(UID_HASH_KEY);
  }

  var STRING_HASH_CACHE_MIN_STRLEN = 16;
  var STRING_HASH_CACHE_MAX_SIZE = 255;
  var STRING_HASH_CACHE_SIZE = 0;
  var stringHashCache = {};

  function assertNotInfinite(size) {
    invariant(
      size !== Infinity,
      'Cannot perform this action with an infinite size.'
    );
  }

  createClass(Map, KeyedCollection);

    // @pragma Construction

    function Map(value) {
      return value === null || value === undefined ? emptyMap() :
        isMap(value) && !isOrdered(value) ? value :
        emptyMap().withMutations(function(map ) {
          var iter = KeyedIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v, k)  {return map.set(k, v)});
        });
    }

    Map.prototype.toString = function() {
      return this.__toString('Map {', '}');
    };

    // @pragma Access

    Map.prototype.get = function(k, notSetValue) {
      return this._root ?
        this._root.get(0, undefined, k, notSetValue) :
        notSetValue;
    };

    // @pragma Modification

    Map.prototype.set = function(k, v) {
      return updateMap(this, k, v);
    };

    Map.prototype.setIn = function(keyPath, v) {
      return this.updateIn(keyPath, NOT_SET, function()  {return v});
    };

    Map.prototype.remove = function(k) {
      return updateMap(this, k, NOT_SET);
    };

    Map.prototype.deleteIn = function(keyPath) {
      return this.updateIn(keyPath, function()  {return NOT_SET});
    };

    Map.prototype.update = function(k, notSetValue, updater) {
      return arguments.length === 1 ?
        k(this) :
        this.updateIn([k], notSetValue, updater);
    };

    Map.prototype.updateIn = function(keyPath, notSetValue, updater) {
      if (!updater) {
        updater = notSetValue;
        notSetValue = undefined;
      }
      var updatedValue = updateInDeepMap(
        this,
        forceIterator(keyPath),
        notSetValue,
        updater
      );
      return updatedValue === NOT_SET ? undefined : updatedValue;
    };

    Map.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._root = null;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyMap();
    };

    // @pragma Composition

    Map.prototype.merge = function(/*...iters*/) {
      return mergeIntoMapWith(this, undefined, arguments);
    };

    Map.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoMapWith(this, merger, iters);
    };

    Map.prototype.mergeIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);
      return this.updateIn(
        keyPath,
        emptyMap(),
        function(m ) {return typeof m.merge === 'function' ?
          m.merge.apply(m, iters) :
          iters[iters.length - 1]}
      );
    };

    Map.prototype.mergeDeep = function(/*...iters*/) {
      return mergeIntoMapWith(this, deepMerger, arguments);
    };

    Map.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoMapWith(this, deepMergerWith(merger), iters);
    };

    Map.prototype.mergeDeepIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);
      return this.updateIn(
        keyPath,
        emptyMap(),
        function(m ) {return typeof m.mergeDeep === 'function' ?
          m.mergeDeep.apply(m, iters) :
          iters[iters.length - 1]}
      );
    };

    Map.prototype.sort = function(comparator) {
      // Late binding
      return OrderedMap(sortFactory(this, comparator));
    };

    Map.prototype.sortBy = function(mapper, comparator) {
      // Late binding
      return OrderedMap(sortFactory(this, comparator, mapper));
    };

    // @pragma Mutability

    Map.prototype.withMutations = function(fn) {
      var mutable = this.asMutable();
      fn(mutable);
      return mutable.wasAltered() ? mutable.__ensureOwner(this.__ownerID) : this;
    };

    Map.prototype.asMutable = function() {
      return this.__ownerID ? this : this.__ensureOwner(new OwnerID());
    };

    Map.prototype.asImmutable = function() {
      return this.__ensureOwner();
    };

    Map.prototype.wasAltered = function() {
      return this.__altered;
    };

    Map.prototype.__iterator = function(type, reverse) {
      return new MapIterator(this, type, reverse);
    };

    Map.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      var iterations = 0;
      this._root && this._root.iterate(function(entry ) {
        iterations++;
        return fn(entry[1], entry[0], this$0);
      }, reverse);
      return iterations;
    };

    Map.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        this.__ownerID = ownerID;
        this.__altered = false;
        return this;
      }
      return makeMap(this.size, this._root, ownerID, this.__hash);
    };


  function isMap(maybeMap) {
    return !!(maybeMap && maybeMap[IS_MAP_SENTINEL]);
  }

  Map.isMap = isMap;

  var IS_MAP_SENTINEL = '@@__IMMUTABLE_MAP__@@';

  var MapPrototype = Map.prototype;
  MapPrototype[IS_MAP_SENTINEL] = true;
  MapPrototype[DELETE] = MapPrototype.remove;
  MapPrototype.removeIn = MapPrototype.deleteIn;


  // #pragma Trie Nodes



    function ArrayMapNode(ownerID, entries) {
      this.ownerID = ownerID;
      this.entries = entries;
    }

    ArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      var entries = this.entries;
      for (var ii = 0, len = entries.length; ii < len; ii++) {
        if (is(key, entries[ii][0])) {
          return entries[ii][1];
        }
      }
      return notSetValue;
    };

    ArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      var removed = value === NOT_SET;

      var entries = this.entries;
      var idx = 0;
      for (var len = entries.length; idx < len; idx++) {
        if (is(key, entries[idx][0])) {
          break;
        }
      }
      var exists = idx < len;

      if (exists ? entries[idx][1] === value : removed) {
        return this;
      }

      SetRef(didAlter);
      (removed || !exists) && SetRef(didChangeSize);

      if (removed && entries.length === 1) {
        return; // undefined
      }

      if (!exists && !removed && entries.length >= MAX_ARRAY_MAP_SIZE) {
        return createNodes(ownerID, entries, key, value);
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newEntries = isEditable ? entries : arrCopy(entries);

      if (exists) {
        if (removed) {
          idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());
        } else {
          newEntries[idx] = [key, value];
        }
      } else {
        newEntries.push([key, value]);
      }

      if (isEditable) {
        this.entries = newEntries;
        return this;
      }

      return new ArrayMapNode(ownerID, newEntries);
    };




    function BitmapIndexedNode(ownerID, bitmap, nodes) {
      this.ownerID = ownerID;
      this.bitmap = bitmap;
      this.nodes = nodes;
    }

    BitmapIndexedNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var bit = (1 << ((shift === 0 ? keyHash : keyHash >>> shift) & MASK));
      var bitmap = this.bitmap;
      return (bitmap & bit) === 0 ? notSetValue :
        this.nodes[popCount(bitmap & (bit - 1))].get(shift + SHIFT, keyHash, key, notSetValue);
    };

    BitmapIndexedNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var keyHashFrag = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
      var bit = 1 << keyHashFrag;
      var bitmap = this.bitmap;
      var exists = (bitmap & bit) !== 0;

      if (!exists && value === NOT_SET) {
        return this;
      }

      var idx = popCount(bitmap & (bit - 1));
      var nodes = this.nodes;
      var node = exists ? nodes[idx] : undefined;
      var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);

      if (newNode === node) {
        return this;
      }

      if (!exists && newNode && nodes.length >= MAX_BITMAP_INDEXED_SIZE) {
        return expandNodes(ownerID, nodes, bitmap, keyHashFrag, newNode);
      }

      if (exists && !newNode && nodes.length === 2 && isLeafNode(nodes[idx ^ 1])) {
        return nodes[idx ^ 1];
      }

      if (exists && newNode && nodes.length === 1 && isLeafNode(newNode)) {
        return newNode;
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newBitmap = exists ? newNode ? bitmap : bitmap ^ bit : bitmap | bit;
      var newNodes = exists ? newNode ?
        setIn(nodes, idx, newNode, isEditable) :
        spliceOut(nodes, idx, isEditable) :
        spliceIn(nodes, idx, newNode, isEditable);

      if (isEditable) {
        this.bitmap = newBitmap;
        this.nodes = newNodes;
        return this;
      }

      return new BitmapIndexedNode(ownerID, newBitmap, newNodes);
    };




    function HashArrayMapNode(ownerID, count, nodes) {
      this.ownerID = ownerID;
      this.count = count;
      this.nodes = nodes;
    }

    HashArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
      var node = this.nodes[idx];
      return node ? node.get(shift + SHIFT, keyHash, key, notSetValue) : notSetValue;
    };

    HashArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
      var removed = value === NOT_SET;
      var nodes = this.nodes;
      var node = nodes[idx];

      if (removed && !node) {
        return this;
      }

      var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);
      if (newNode === node) {
        return this;
      }

      var newCount = this.count;
      if (!node) {
        newCount++;
      } else if (!newNode) {
        newCount--;
        if (newCount < MIN_HASH_ARRAY_MAP_SIZE) {
          return packNodes(ownerID, nodes, newCount, idx);
        }
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newNodes = setIn(nodes, idx, newNode, isEditable);

      if (isEditable) {
        this.count = newCount;
        this.nodes = newNodes;
        return this;
      }

      return new HashArrayMapNode(ownerID, newCount, newNodes);
    };




    function HashCollisionNode(ownerID, keyHash, entries) {
      this.ownerID = ownerID;
      this.keyHash = keyHash;
      this.entries = entries;
    }

    HashCollisionNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      var entries = this.entries;
      for (var ii = 0, len = entries.length; ii < len; ii++) {
        if (is(key, entries[ii][0])) {
          return entries[ii][1];
        }
      }
      return notSetValue;
    };

    HashCollisionNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }

      var removed = value === NOT_SET;

      if (keyHash !== this.keyHash) {
        if (removed) {
          return this;
        }
        SetRef(didAlter);
        SetRef(didChangeSize);
        return mergeIntoNode(this, ownerID, shift, keyHash, [key, value]);
      }

      var entries = this.entries;
      var idx = 0;
      for (var len = entries.length; idx < len; idx++) {
        if (is(key, entries[idx][0])) {
          break;
        }
      }
      var exists = idx < len;

      if (exists ? entries[idx][1] === value : removed) {
        return this;
      }

      SetRef(didAlter);
      (removed || !exists) && SetRef(didChangeSize);

      if (removed && len === 2) {
        return new ValueNode(ownerID, this.keyHash, entries[idx ^ 1]);
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newEntries = isEditable ? entries : arrCopy(entries);

      if (exists) {
        if (removed) {
          idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());
        } else {
          newEntries[idx] = [key, value];
        }
      } else {
        newEntries.push([key, value]);
      }

      if (isEditable) {
        this.entries = newEntries;
        return this;
      }

      return new HashCollisionNode(ownerID, this.keyHash, newEntries);
    };




    function ValueNode(ownerID, keyHash, entry) {
      this.ownerID = ownerID;
      this.keyHash = keyHash;
      this.entry = entry;
    }

    ValueNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      return is(key, this.entry[0]) ? this.entry[1] : notSetValue;
    };

    ValueNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      var removed = value === NOT_SET;
      var keyMatch = is(key, this.entry[0]);
      if (keyMatch ? value === this.entry[1] : removed) {
        return this;
      }

      SetRef(didAlter);

      if (removed) {
        SetRef(didChangeSize);
        return; // undefined
      }

      if (keyMatch) {
        if (ownerID && ownerID === this.ownerID) {
          this.entry[1] = value;
          return this;
        }
        return new ValueNode(ownerID, this.keyHash, [key, value]);
      }

      SetRef(didChangeSize);
      return mergeIntoNode(this, ownerID, shift, hash(key), [key, value]);
    };



  // #pragma Iterators

  ArrayMapNode.prototype.iterate =
  HashCollisionNode.prototype.iterate = function (fn, reverse) {
    var entries = this.entries;
    for (var ii = 0, maxIndex = entries.length - 1; ii <= maxIndex; ii++) {
      if (fn(entries[reverse ? maxIndex - ii : ii]) === false) {
        return false;
      }
    }
  };

  BitmapIndexedNode.prototype.iterate =
  HashArrayMapNode.prototype.iterate = function (fn, reverse) {
    var nodes = this.nodes;
    for (var ii = 0, maxIndex = nodes.length - 1; ii <= maxIndex; ii++) {
      var node = nodes[reverse ? maxIndex - ii : ii];
      if (node && node.iterate(fn, reverse) === false) {
        return false;
      }
    }
  };

  ValueNode.prototype.iterate = function (fn, reverse) {
    return fn(this.entry);
  };

  createClass(MapIterator, Iterator);

    function MapIterator(map, type, reverse) {
      this._type = type;
      this._reverse = reverse;
      this._stack = map._root && mapIteratorFrame(map._root);
    }

    MapIterator.prototype.next = function() {
      var type = this._type;
      var stack = this._stack;
      while (stack) {
        var node = stack.node;
        var index = stack.index++;
        var maxIndex;
        if (node.entry) {
          if (index === 0) {
            return mapIteratorValue(type, node.entry);
          }
        } else if (node.entries) {
          maxIndex = node.entries.length - 1;
          if (index <= maxIndex) {
            return mapIteratorValue(type, node.entries[this._reverse ? maxIndex - index : index]);
          }
        } else {
          maxIndex = node.nodes.length - 1;
          if (index <= maxIndex) {
            var subNode = node.nodes[this._reverse ? maxIndex - index : index];
            if (subNode) {
              if (subNode.entry) {
                return mapIteratorValue(type, subNode.entry);
              }
              stack = this._stack = mapIteratorFrame(subNode, stack);
            }
            continue;
          }
        }
        stack = this._stack = this._stack.__prev;
      }
      return iteratorDone();
    };


  function mapIteratorValue(type, entry) {
    return iteratorValue(type, entry[0], entry[1]);
  }

  function mapIteratorFrame(node, prev) {
    return {
      node: node,
      index: 0,
      __prev: prev
    };
  }

  function makeMap(size, root, ownerID, hash) {
    var map = Object.create(MapPrototype);
    map.size = size;
    map._root = root;
    map.__ownerID = ownerID;
    map.__hash = hash;
    map.__altered = false;
    return map;
  }

  var EMPTY_MAP;
  function emptyMap() {
    return EMPTY_MAP || (EMPTY_MAP = makeMap(0));
  }

  function updateMap(map, k, v) {
    var newRoot;
    var newSize;
    if (!map._root) {
      if (v === NOT_SET) {
        return map;
      }
      newSize = 1;
      newRoot = new ArrayMapNode(map.__ownerID, [[k, v]]);
    } else {
      var didChangeSize = MakeRef(CHANGE_LENGTH);
      var didAlter = MakeRef(DID_ALTER);
      newRoot = updateNode(map._root, map.__ownerID, 0, undefined, k, v, didChangeSize, didAlter);
      if (!didAlter.value) {
        return map;
      }
      newSize = map.size + (didChangeSize.value ? v === NOT_SET ? -1 : 1 : 0);
    }
    if (map.__ownerID) {
      map.size = newSize;
      map._root = newRoot;
      map.__hash = undefined;
      map.__altered = true;
      return map;
    }
    return newRoot ? makeMap(newSize, newRoot) : emptyMap();
  }

  function updateNode(node, ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
    if (!node) {
      if (value === NOT_SET) {
        return node;
      }
      SetRef(didAlter);
      SetRef(didChangeSize);
      return new ValueNode(ownerID, keyHash, [key, value]);
    }
    return node.update(ownerID, shift, keyHash, key, value, didChangeSize, didAlter);
  }

  function isLeafNode(node) {
    return node.constructor === ValueNode || node.constructor === HashCollisionNode;
  }

  function mergeIntoNode(node, ownerID, shift, keyHash, entry) {
    if (node.keyHash === keyHash) {
      return new HashCollisionNode(ownerID, keyHash, [node.entry, entry]);
    }

    var idx1 = (shift === 0 ? node.keyHash : node.keyHash >>> shift) & MASK;
    var idx2 = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;

    var newNode;
    var nodes = idx1 === idx2 ?
      [mergeIntoNode(node, ownerID, shift + SHIFT, keyHash, entry)] :
      ((newNode = new ValueNode(ownerID, keyHash, entry)), idx1 < idx2 ? [node, newNode] : [newNode, node]);

    return new BitmapIndexedNode(ownerID, (1 << idx1) | (1 << idx2), nodes);
  }

  function createNodes(ownerID, entries, key, value) {
    if (!ownerID) {
      ownerID = new OwnerID();
    }
    var node = new ValueNode(ownerID, hash(key), [key, value]);
    for (var ii = 0; ii < entries.length; ii++) {
      var entry = entries[ii];
      node = node.update(ownerID, 0, undefined, entry[0], entry[1]);
    }
    return node;
  }

  function packNodes(ownerID, nodes, count, excluding) {
    var bitmap = 0;
    var packedII = 0;
    var packedNodes = new Array(count);
    for (var ii = 0, bit = 1, len = nodes.length; ii < len; ii++, bit <<= 1) {
      var node = nodes[ii];
      if (node !== undefined && ii !== excluding) {
        bitmap |= bit;
        packedNodes[packedII++] = node;
      }
    }
    return new BitmapIndexedNode(ownerID, bitmap, packedNodes);
  }

  function expandNodes(ownerID, nodes, bitmap, including, node) {
    var count = 0;
    var expandedNodes = new Array(SIZE);
    for (var ii = 0; bitmap !== 0; ii++, bitmap >>>= 1) {
      expandedNodes[ii] = bitmap & 1 ? nodes[count++] : undefined;
    }
    expandedNodes[including] = node;
    return new HashArrayMapNode(ownerID, count + 1, expandedNodes);
  }

  function mergeIntoMapWith(map, merger, iterables) {
    var iters = [];
    for (var ii = 0; ii < iterables.length; ii++) {
      var value = iterables[ii];
      var iter = KeyedIterable(value);
      if (!isIterable(value)) {
        iter = iter.map(function(v ) {return fromJS(v)});
      }
      iters.push(iter);
    }
    return mergeIntoCollectionWith(map, merger, iters);
  }

  function deepMerger(existing, value, key) {
    return existing && existing.mergeDeep && isIterable(value) ?
      existing.mergeDeep(value) :
      is(existing, value) ? existing : value;
  }

  function deepMergerWith(merger) {
    return function(existing, value, key)  {
      if (existing && existing.mergeDeepWith && isIterable(value)) {
        return existing.mergeDeepWith(merger, value);
      }
      var nextValue = merger(existing, value, key);
      return is(existing, nextValue) ? existing : nextValue;
    };
  }

  function mergeIntoCollectionWith(collection, merger, iters) {
    iters = iters.filter(function(x ) {return x.size !== 0});
    if (iters.length === 0) {
      return collection;
    }
    if (collection.size === 0 && !collection.__ownerID && iters.length === 1) {
      return collection.constructor(iters[0]);
    }
    return collection.withMutations(function(collection ) {
      var mergeIntoMap = merger ?
        function(value, key)  {
          collection.update(key, NOT_SET, function(existing )
            {return existing === NOT_SET ? value : merger(existing, value, key)}
          );
        } :
        function(value, key)  {
          collection.set(key, value);
        };
      for (var ii = 0; ii < iters.length; ii++) {
        iters[ii].forEach(mergeIntoMap);
      }
    });
  }

  function updateInDeepMap(existing, keyPathIter, notSetValue, updater) {
    var isNotSet = existing === NOT_SET;
    var step = keyPathIter.next();
    if (step.done) {
      var existingValue = isNotSet ? notSetValue : existing;
      var newValue = updater(existingValue);
      return newValue === existingValue ? existing : newValue;
    }
    invariant(
      isNotSet || (existing && existing.set),
      'invalid keyPath'
    );
    var key = step.value;
    var nextExisting = isNotSet ? NOT_SET : existing.get(key, NOT_SET);
    var nextUpdated = updateInDeepMap(
      nextExisting,
      keyPathIter,
      notSetValue,
      updater
    );
    return nextUpdated === nextExisting ? existing :
      nextUpdated === NOT_SET ? existing.remove(key) :
      (isNotSet ? emptyMap() : existing).set(key, nextUpdated);
  }

  function popCount(x) {
    x = x - ((x >> 1) & 0x55555555);
    x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
    x = (x + (x >> 4)) & 0x0f0f0f0f;
    x = x + (x >> 8);
    x = x + (x >> 16);
    return x & 0x7f;
  }

  function setIn(array, idx, val, canEdit) {
    var newArray = canEdit ? array : arrCopy(array);
    newArray[idx] = val;
    return newArray;
  }

  function spliceIn(array, idx, val, canEdit) {
    var newLen = array.length + 1;
    if (canEdit && idx + 1 === newLen) {
      array[idx] = val;
      return array;
    }
    var newArray = new Array(newLen);
    var after = 0;
    for (var ii = 0; ii < newLen; ii++) {
      if (ii === idx) {
        newArray[ii] = val;
        after = -1;
      } else {
        newArray[ii] = array[ii + after];
      }
    }
    return newArray;
  }

  function spliceOut(array, idx, canEdit) {
    var newLen = array.length - 1;
    if (canEdit && idx === newLen) {
      array.pop();
      return array;
    }
    var newArray = new Array(newLen);
    var after = 0;
    for (var ii = 0; ii < newLen; ii++) {
      if (ii === idx) {
        after = 1;
      }
      newArray[ii] = array[ii + after];
    }
    return newArray;
  }

  var MAX_ARRAY_MAP_SIZE = SIZE / 4;
  var MAX_BITMAP_INDEXED_SIZE = SIZE / 2;
  var MIN_HASH_ARRAY_MAP_SIZE = SIZE / 4;

  createClass(List, IndexedCollection);

    // @pragma Construction

    function List(value) {
      var empty = emptyList();
      if (value === null || value === undefined) {
        return empty;
      }
      if (isList(value)) {
        return value;
      }
      var iter = IndexedIterable(value);
      var size = iter.size;
      if (size === 0) {
        return empty;
      }
      assertNotInfinite(size);
      if (size > 0 && size < SIZE) {
        return makeList(0, size, SHIFT, null, new VNode(iter.toArray()));
      }
      return empty.withMutations(function(list ) {
        list.setSize(size);
        iter.forEach(function(v, i)  {return list.set(i, v)});
      });
    }

    List.of = function(/*...values*/) {
      return this(arguments);
    };

    List.prototype.toString = function() {
      return this.__toString('List [', ']');
    };

    // @pragma Access

    List.prototype.get = function(index, notSetValue) {
      index = wrapIndex(this, index);
      if (index >= 0 && index < this.size) {
        index += this._origin;
        var node = listNodeFor(this, index);
        return node && node.array[index & MASK];
      }
      return notSetValue;
    };

    // @pragma Modification

    List.prototype.set = function(index, value) {
      return updateList(this, index, value);
    };

    List.prototype.remove = function(index) {
      return !this.has(index) ? this :
        index === 0 ? this.shift() :
        index === this.size - 1 ? this.pop() :
        this.splice(index, 1);
    };

    List.prototype.insert = function(index, value) {
      return this.splice(index, 0, value);
    };

    List.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = this._origin = this._capacity = 0;
        this._level = SHIFT;
        this._root = this._tail = null;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyList();
    };

    List.prototype.push = function(/*...values*/) {
      var values = arguments;
      var oldSize = this.size;
      return this.withMutations(function(list ) {
        setListBounds(list, 0, oldSize + values.length);
        for (var ii = 0; ii < values.length; ii++) {
          list.set(oldSize + ii, values[ii]);
        }
      });
    };

    List.prototype.pop = function() {
      return setListBounds(this, 0, -1);
    };

    List.prototype.unshift = function(/*...values*/) {
      var values = arguments;
      return this.withMutations(function(list ) {
        setListBounds(list, -values.length);
        for (var ii = 0; ii < values.length; ii++) {
          list.set(ii, values[ii]);
        }
      });
    };

    List.prototype.shift = function() {
      return setListBounds(this, 1);
    };

    // @pragma Composition

    List.prototype.merge = function(/*...iters*/) {
      return mergeIntoListWith(this, undefined, arguments);
    };

    List.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoListWith(this, merger, iters);
    };

    List.prototype.mergeDeep = function(/*...iters*/) {
      return mergeIntoListWith(this, deepMerger, arguments);
    };

    List.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoListWith(this, deepMergerWith(merger), iters);
    };

    List.prototype.setSize = function(size) {
      return setListBounds(this, 0, size);
    };

    // @pragma Iteration

    List.prototype.slice = function(begin, end) {
      var size = this.size;
      if (wholeSlice(begin, end, size)) {
        return this;
      }
      return setListBounds(
        this,
        resolveBegin(begin, size),
        resolveEnd(end, size)
      );
    };

    List.prototype.__iterator = function(type, reverse) {
      var index = 0;
      var values = iterateList(this, reverse);
      return new Iterator(function()  {
        var value = values();
        return value === DONE ?
          iteratorDone() :
          iteratorValue(type, index++, value);
      });
    };

    List.prototype.__iterate = function(fn, reverse) {
      var index = 0;
      var values = iterateList(this, reverse);
      var value;
      while ((value = values()) !== DONE) {
        if (fn(value, index++, this) === false) {
          break;
        }
      }
      return index;
    };

    List.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        this.__ownerID = ownerID;
        return this;
      }
      return makeList(this._origin, this._capacity, this._level, this._root, this._tail, ownerID, this.__hash);
    };


  function isList(maybeList) {
    return !!(maybeList && maybeList[IS_LIST_SENTINEL]);
  }

  List.isList = isList;

  var IS_LIST_SENTINEL = '@@__IMMUTABLE_LIST__@@';

  var ListPrototype = List.prototype;
  ListPrototype[IS_LIST_SENTINEL] = true;
  ListPrototype[DELETE] = ListPrototype.remove;
  ListPrototype.setIn = MapPrototype.setIn;
  ListPrototype.deleteIn =
  ListPrototype.removeIn = MapPrototype.removeIn;
  ListPrototype.update = MapPrototype.update;
  ListPrototype.updateIn = MapPrototype.updateIn;
  ListPrototype.mergeIn = MapPrototype.mergeIn;
  ListPrototype.mergeDeepIn = MapPrototype.mergeDeepIn;
  ListPrototype.withMutations = MapPrototype.withMutations;
  ListPrototype.asMutable = MapPrototype.asMutable;
  ListPrototype.asImmutable = MapPrototype.asImmutable;
  ListPrototype.wasAltered = MapPrototype.wasAltered;



    function VNode(array, ownerID) {
      this.array = array;
      this.ownerID = ownerID;
    }

    // TODO: seems like these methods are very similar

    VNode.prototype.removeBefore = function(ownerID, level, index) {
      if (index === level ? 1 << level :  this.array.length === 0) {
        return this;
      }
      var originIndex = (index >>> level) & MASK;
      if (originIndex >= this.array.length) {
        return new VNode([], ownerID);
      }
      var removingFirst = originIndex === 0;
      var newChild;
      if (level > 0) {
        var oldChild = this.array[originIndex];
        newChild = oldChild && oldChild.removeBefore(ownerID, level - SHIFT, index);
        if (newChild === oldChild && removingFirst) {
          return this;
        }
      }
      if (removingFirst && !newChild) {
        return this;
      }
      var editable = editableVNode(this, ownerID);
      if (!removingFirst) {
        for (var ii = 0; ii < originIndex; ii++) {
          editable.array[ii] = undefined;
        }
      }
      if (newChild) {
        editable.array[originIndex] = newChild;
      }
      return editable;
    };

    VNode.prototype.removeAfter = function(ownerID, level, index) {
      if (index === (level ? 1 << level : 0) || this.array.length === 0) {
        return this;
      }
      var sizeIndex = ((index - 1) >>> level) & MASK;
      if (sizeIndex >= this.array.length) {
        return this;
      }

      var newChild;
      if (level > 0) {
        var oldChild = this.array[sizeIndex];
        newChild = oldChild && oldChild.removeAfter(ownerID, level - SHIFT, index);
        if (newChild === oldChild && sizeIndex === this.array.length - 1) {
          return this;
        }
      }

      var editable = editableVNode(this, ownerID);
      editable.array.splice(sizeIndex + 1);
      if (newChild) {
        editable.array[sizeIndex] = newChild;
      }
      return editable;
    };



  var DONE = {};

  function iterateList(list, reverse) {
    var left = list._origin;
    var right = list._capacity;
    var tailPos = getTailOffset(right);
    var tail = list._tail;

    return iterateNodeOrLeaf(list._root, list._level, 0);

    function iterateNodeOrLeaf(node, level, offset) {
      return level === 0 ?
        iterateLeaf(node, offset) :
        iterateNode(node, level, offset);
    }

    function iterateLeaf(node, offset) {
      var array = offset === tailPos ? tail && tail.array : node && node.array;
      var from = offset > left ? 0 : left - offset;
      var to = right - offset;
      if (to > SIZE) {
        to = SIZE;
      }
      return function()  {
        if (from === to) {
          return DONE;
        }
        var idx = reverse ? --to : from++;
        return array && array[idx];
      };
    }

    function iterateNode(node, level, offset) {
      var values;
      var array = node && node.array;
      var from = offset > left ? 0 : (left - offset) >> level;
      var to = ((right - offset) >> level) + 1;
      if (to > SIZE) {
        to = SIZE;
      }
      return function()  {
        do {
          if (values) {
            var value = values();
            if (value !== DONE) {
              return value;
            }
            values = null;
          }
          if (from === to) {
            return DONE;
          }
          var idx = reverse ? --to : from++;
          values = iterateNodeOrLeaf(
            array && array[idx], level - SHIFT, offset + (idx << level)
          );
        } while (true);
      };
    }
  }

  function makeList(origin, capacity, level, root, tail, ownerID, hash) {
    var list = Object.create(ListPrototype);
    list.size = capacity - origin;
    list._origin = origin;
    list._capacity = capacity;
    list._level = level;
    list._root = root;
    list._tail = tail;
    list.__ownerID = ownerID;
    list.__hash = hash;
    list.__altered = false;
    return list;
  }

  var EMPTY_LIST;
  function emptyList() {
    return EMPTY_LIST || (EMPTY_LIST = makeList(0, 0, SHIFT));
  }

  function updateList(list, index, value) {
    index = wrapIndex(list, index);

    if (index !== index) {
      return list;
    }

    if (index >= list.size || index < 0) {
      return list.withMutations(function(list ) {
        index < 0 ?
          setListBounds(list, index).set(0, value) :
          setListBounds(list, 0, index + 1).set(index, value);
      });
    }

    index += list._origin;

    var newTail = list._tail;
    var newRoot = list._root;
    var didAlter = MakeRef(DID_ALTER);
    if (index >= getTailOffset(list._capacity)) {
      newTail = updateVNode(newTail, list.__ownerID, 0, index, value, didAlter);
    } else {
      newRoot = updateVNode(newRoot, list.__ownerID, list._level, index, value, didAlter);
    }

    if (!didAlter.value) {
      return list;
    }

    if (list.__ownerID) {
      list._root = newRoot;
      list._tail = newTail;
      list.__hash = undefined;
      list.__altered = true;
      return list;
    }
    return makeList(list._origin, list._capacity, list._level, newRoot, newTail);
  }

  function updateVNode(node, ownerID, level, index, value, didAlter) {
    var idx = (index >>> level) & MASK;
    var nodeHas = node && idx < node.array.length;
    if (!nodeHas && value === undefined) {
      return node;
    }

    var newNode;

    if (level > 0) {
      var lowerNode = node && node.array[idx];
      var newLowerNode = updateVNode(lowerNode, ownerID, level - SHIFT, index, value, didAlter);
      if (newLowerNode === lowerNode) {
        return node;
      }
      newNode = editableVNode(node, ownerID);
      newNode.array[idx] = newLowerNode;
      return newNode;
    }

    if (nodeHas && node.array[idx] === value) {
      return node;
    }

    SetRef(didAlter);

    newNode = editableVNode(node, ownerID);
    if (value === undefined && idx === newNode.array.length - 1) {
      newNode.array.pop();
    } else {
      newNode.array[idx] = value;
    }
    return newNode;
  }

  function editableVNode(node, ownerID) {
    if (ownerID && node && ownerID === node.ownerID) {
      return node;
    }
    return new VNode(node ? node.array.slice() : [], ownerID);
  }

  function listNodeFor(list, rawIndex) {
    if (rawIndex >= getTailOffset(list._capacity)) {
      return list._tail;
    }
    if (rawIndex < 1 << (list._level + SHIFT)) {
      var node = list._root;
      var level = list._level;
      while (node && level > 0) {
        node = node.array[(rawIndex >>> level) & MASK];
        level -= SHIFT;
      }
      return node;
    }
  }

  function setListBounds(list, begin, end) {
    // Sanitize begin & end using this shorthand for ToInt32(argument)
    // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
    if (begin !== undefined) {
      begin = begin | 0;
    }
    if (end !== undefined) {
      end = end | 0;
    }
    var owner = list.__ownerID || new OwnerID();
    var oldOrigin = list._origin;
    var oldCapacity = list._capacity;
    var newOrigin = oldOrigin + begin;
    var newCapacity = end === undefined ? oldCapacity : end < 0 ? oldCapacity + end : oldOrigin + end;
    if (newOrigin === oldOrigin && newCapacity === oldCapacity) {
      return list;
    }

    // If it's going to end after it starts, it's empty.
    if (newOrigin >= newCapacity) {
      return list.clear();
    }

    var newLevel = list._level;
    var newRoot = list._root;

    // New origin might need creating a higher root.
    var offsetShift = 0;
    while (newOrigin + offsetShift < 0) {
      newRoot = new VNode(newRoot && newRoot.array.length ? [undefined, newRoot] : [], owner);
      newLevel += SHIFT;
      offsetShift += 1 << newLevel;
    }
    if (offsetShift) {
      newOrigin += offsetShift;
      oldOrigin += offsetShift;
      newCapacity += offsetShift;
      oldCapacity += offsetShift;
    }

    var oldTailOffset = getTailOffset(oldCapacity);
    var newTailOffset = getTailOffset(newCapacity);

    // New size might need creating a higher root.
    while (newTailOffset >= 1 << (newLevel + SHIFT)) {
      newRoot = new VNode(newRoot && newRoot.array.length ? [newRoot] : [], owner);
      newLevel += SHIFT;
    }

    // Locate or create the new tail.
    var oldTail = list._tail;
    var newTail = newTailOffset < oldTailOffset ?
      listNodeFor(list, newCapacity - 1) :
      newTailOffset > oldTailOffset ? new VNode([], owner) : oldTail;

    // Merge Tail into tree.
    if (oldTail && newTailOffset > oldTailOffset && newOrigin < oldCapacity && oldTail.array.length) {
      newRoot = editableVNode(newRoot, owner);
      var node = newRoot;
      for (var level = newLevel; level > SHIFT; level -= SHIFT) {
        var idx = (oldTailOffset >>> level) & MASK;
        node = node.array[idx] = editableVNode(node.array[idx], owner);
      }
      node.array[(oldTailOffset >>> SHIFT) & MASK] = oldTail;
    }

    // If the size has been reduced, there's a chance the tail needs to be trimmed.
    if (newCapacity < oldCapacity) {
      newTail = newTail && newTail.removeAfter(owner, 0, newCapacity);
    }

    // If the new origin is within the tail, then we do not need a root.
    if (newOrigin >= newTailOffset) {
      newOrigin -= newTailOffset;
      newCapacity -= newTailOffset;
      newLevel = SHIFT;
      newRoot = null;
      newTail = newTail && newTail.removeBefore(owner, 0, newOrigin);

    // Otherwise, if the root has been trimmed, garbage collect.
    } else if (newOrigin > oldOrigin || newTailOffset < oldTailOffset) {
      offsetShift = 0;

      // Identify the new top root node of the subtree of the old root.
      while (newRoot) {
        var beginIndex = (newOrigin >>> newLevel) & MASK;
        if (beginIndex !== (newTailOffset >>> newLevel) & MASK) {
          break;
        }
        if (beginIndex) {
          offsetShift += (1 << newLevel) * beginIndex;
        }
        newLevel -= SHIFT;
        newRoot = newRoot.array[beginIndex];
      }

      // Trim the new sides of the new root.
      if (newRoot && newOrigin > oldOrigin) {
        newRoot = newRoot.removeBefore(owner, newLevel, newOrigin - offsetShift);
      }
      if (newRoot && newTailOffset < oldTailOffset) {
        newRoot = newRoot.removeAfter(owner, newLevel, newTailOffset - offsetShift);
      }
      if (offsetShift) {
        newOrigin -= offsetShift;
        newCapacity -= offsetShift;
      }
    }

    if (list.__ownerID) {
      list.size = newCapacity - newOrigin;
      list._origin = newOrigin;
      list._capacity = newCapacity;
      list._level = newLevel;
      list._root = newRoot;
      list._tail = newTail;
      list.__hash = undefined;
      list.__altered = true;
      return list;
    }
    return makeList(newOrigin, newCapacity, newLevel, newRoot, newTail);
  }

  function mergeIntoListWith(list, merger, iterables) {
    var iters = [];
    var maxSize = 0;
    for (var ii = 0; ii < iterables.length; ii++) {
      var value = iterables[ii];
      var iter = IndexedIterable(value);
      if (iter.size > maxSize) {
        maxSize = iter.size;
      }
      if (!isIterable(value)) {
        iter = iter.map(function(v ) {return fromJS(v)});
      }
      iters.push(iter);
    }
    if (maxSize > list.size) {
      list = list.setSize(maxSize);
    }
    return mergeIntoCollectionWith(list, merger, iters);
  }

  function getTailOffset(size) {
    return size < SIZE ? 0 : (((size - 1) >>> SHIFT) << SHIFT);
  }

  createClass(OrderedMap, Map);

    // @pragma Construction

    function OrderedMap(value) {
      return value === null || value === undefined ? emptyOrderedMap() :
        isOrderedMap(value) ? value :
        emptyOrderedMap().withMutations(function(map ) {
          var iter = KeyedIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v, k)  {return map.set(k, v)});
        });
    }

    OrderedMap.of = function(/*...values*/) {
      return this(arguments);
    };

    OrderedMap.prototype.toString = function() {
      return this.__toString('OrderedMap {', '}');
    };

    // @pragma Access

    OrderedMap.prototype.get = function(k, notSetValue) {
      var index = this._map.get(k);
      return index !== undefined ? this._list.get(index)[1] : notSetValue;
    };

    // @pragma Modification

    OrderedMap.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._map.clear();
        this._list.clear();
        return this;
      }
      return emptyOrderedMap();
    };

    OrderedMap.prototype.set = function(k, v) {
      return updateOrderedMap(this, k, v);
    };

    OrderedMap.prototype.remove = function(k) {
      return updateOrderedMap(this, k, NOT_SET);
    };

    OrderedMap.prototype.wasAltered = function() {
      return this._map.wasAltered() || this._list.wasAltered();
    };

    OrderedMap.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._list.__iterate(
        function(entry ) {return entry && fn(entry[1], entry[0], this$0)},
        reverse
      );
    };

    OrderedMap.prototype.__iterator = function(type, reverse) {
      return this._list.fromEntrySeq().__iterator(type, reverse);
    };

    OrderedMap.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      var newMap = this._map.__ensureOwner(ownerID);
      var newList = this._list.__ensureOwner(ownerID);
      if (!ownerID) {
        this.__ownerID = ownerID;
        this._map = newMap;
        this._list = newList;
        return this;
      }
      return makeOrderedMap(newMap, newList, ownerID, this.__hash);
    };


  function isOrderedMap(maybeOrderedMap) {
    return isMap(maybeOrderedMap) && isOrdered(maybeOrderedMap);
  }

  OrderedMap.isOrderedMap = isOrderedMap;

  OrderedMap.prototype[IS_ORDERED_SENTINEL] = true;
  OrderedMap.prototype[DELETE] = OrderedMap.prototype.remove;



  function makeOrderedMap(map, list, ownerID, hash) {
    var omap = Object.create(OrderedMap.prototype);
    omap.size = map ? map.size : 0;
    omap._map = map;
    omap._list = list;
    omap.__ownerID = ownerID;
    omap.__hash = hash;
    return omap;
  }

  var EMPTY_ORDERED_MAP;
  function emptyOrderedMap() {
    return EMPTY_ORDERED_MAP || (EMPTY_ORDERED_MAP = makeOrderedMap(emptyMap(), emptyList()));
  }

  function updateOrderedMap(omap, k, v) {
    var map = omap._map;
    var list = omap._list;
    var i = map.get(k);
    var has = i !== undefined;
    var newMap;
    var newList;
    if (v === NOT_SET) { // removed
      if (!has) {
        return omap;
      }
      if (list.size >= SIZE && list.size >= map.size * 2) {
        newList = list.filter(function(entry, idx)  {return entry !== undefined && i !== idx});
        newMap = newList.toKeyedSeq().map(function(entry ) {return entry[0]}).flip().toMap();
        if (omap.__ownerID) {
          newMap.__ownerID = newList.__ownerID = omap.__ownerID;
        }
      } else {
        newMap = map.remove(k);
        newList = i === list.size - 1 ? list.pop() : list.set(i, undefined);
      }
    } else {
      if (has) {
        if (v === list.get(i)[1]) {
          return omap;
        }
        newMap = map;
        newList = list.set(i, [k, v]);
      } else {
        newMap = map.set(k, list.size);
        newList = list.set(list.size, [k, v]);
      }
    }
    if (omap.__ownerID) {
      omap.size = newMap.size;
      omap._map = newMap;
      omap._list = newList;
      omap.__hash = undefined;
      return omap;
    }
    return makeOrderedMap(newMap, newList);
  }

  createClass(ToKeyedSequence, KeyedSeq);
    function ToKeyedSequence(indexed, useKeys) {
      this._iter = indexed;
      this._useKeys = useKeys;
      this.size = indexed.size;
    }

    ToKeyedSequence.prototype.get = function(key, notSetValue) {
      return this._iter.get(key, notSetValue);
    };

    ToKeyedSequence.prototype.has = function(key) {
      return this._iter.has(key);
    };

    ToKeyedSequence.prototype.valueSeq = function() {
      return this._iter.valueSeq();
    };

    ToKeyedSequence.prototype.reverse = function() {var this$0 = this;
      var reversedSequence = reverseFactory(this, true);
      if (!this._useKeys) {
        reversedSequence.valueSeq = function()  {return this$0._iter.toSeq().reverse()};
      }
      return reversedSequence;
    };

    ToKeyedSequence.prototype.map = function(mapper, context) {var this$0 = this;
      var mappedSequence = mapFactory(this, mapper, context);
      if (!this._useKeys) {
        mappedSequence.valueSeq = function()  {return this$0._iter.toSeq().map(mapper, context)};
      }
      return mappedSequence;
    };

    ToKeyedSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      var ii;
      return this._iter.__iterate(
        this._useKeys ?
          function(v, k)  {return fn(v, k, this$0)} :
          ((ii = reverse ? resolveSize(this) : 0),
            function(v ) {return fn(v, reverse ? --ii : ii++, this$0)}),
        reverse
      );
    };

    ToKeyedSequence.prototype.__iterator = function(type, reverse) {
      if (this._useKeys) {
        return this._iter.__iterator(type, reverse);
      }
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      var ii = reverse ? resolveSize(this) : 0;
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step :
          iteratorValue(type, reverse ? --ii : ii++, step.value, step);
      });
    };

  ToKeyedSequence.prototype[IS_ORDERED_SENTINEL] = true;


  createClass(ToIndexedSequence, IndexedSeq);
    function ToIndexedSequence(iter) {
      this._iter = iter;
      this.size = iter.size;
    }

    ToIndexedSequence.prototype.includes = function(value) {
      return this._iter.includes(value);
    };

    ToIndexedSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      var iterations = 0;
      return this._iter.__iterate(function(v ) {return fn(v, iterations++, this$0)}, reverse);
    };

    ToIndexedSequence.prototype.__iterator = function(type, reverse) {
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      var iterations = 0;
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step :
          iteratorValue(type, iterations++, step.value, step)
      });
    };



  createClass(ToSetSequence, SetSeq);
    function ToSetSequence(iter) {
      this._iter = iter;
      this.size = iter.size;
    }

    ToSetSequence.prototype.has = function(key) {
      return this._iter.includes(key);
    };

    ToSetSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._iter.__iterate(function(v ) {return fn(v, v, this$0)}, reverse);
    };

    ToSetSequence.prototype.__iterator = function(type, reverse) {
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step :
          iteratorValue(type, step.value, step.value, step);
      });
    };



  createClass(FromEntriesSequence, KeyedSeq);
    function FromEntriesSequence(entries) {
      this._iter = entries;
      this.size = entries.size;
    }

    FromEntriesSequence.prototype.entrySeq = function() {
      return this._iter.toSeq();
    };

    FromEntriesSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._iter.__iterate(function(entry ) {
        // Check if entry exists first so array access doesn't throw for holes
        // in the parent iteration.
        if (entry) {
          validateEntry(entry);
          var indexedIterable = isIterable(entry);
          return fn(
            indexedIterable ? entry.get(1) : entry[1],
            indexedIterable ? entry.get(0) : entry[0],
            this$0
          );
        }
      }, reverse);
    };

    FromEntriesSequence.prototype.__iterator = function(type, reverse) {
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      return new Iterator(function()  {
        while (true) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          var entry = step.value;
          // Check if entry exists first so array access doesn't throw for holes
          // in the parent iteration.
          if (entry) {
            validateEntry(entry);
            var indexedIterable = isIterable(entry);
            return iteratorValue(
              type,
              indexedIterable ? entry.get(0) : entry[0],
              indexedIterable ? entry.get(1) : entry[1],
              step
            );
          }
        }
      });
    };


  ToIndexedSequence.prototype.cacheResult =
  ToKeyedSequence.prototype.cacheResult =
  ToSetSequence.prototype.cacheResult =
  FromEntriesSequence.prototype.cacheResult =
    cacheResultThrough;


  function flipFactory(iterable) {
    var flipSequence = makeSequence(iterable);
    flipSequence._iter = iterable;
    flipSequence.size = iterable.size;
    flipSequence.flip = function()  {return iterable};
    flipSequence.reverse = function () {
      var reversedSequence = iterable.reverse.apply(this); // super.reverse()
      reversedSequence.flip = function()  {return iterable.reverse()};
      return reversedSequence;
    };
    flipSequence.has = function(key ) {return iterable.includes(key)};
    flipSequence.includes = function(key ) {return iterable.has(key)};
    flipSequence.cacheResult = cacheResultThrough;
    flipSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      return iterable.__iterate(function(v, k)  {return fn(k, v, this$0) !== false}, reverse);
    };
    flipSequence.__iteratorUncached = function(type, reverse) {
      if (type === ITERATE_ENTRIES) {
        var iterator = iterable.__iterator(type, reverse);
        return new Iterator(function()  {
          var step = iterator.next();
          if (!step.done) {
            var k = step.value[0];
            step.value[0] = step.value[1];
            step.value[1] = k;
          }
          return step;
        });
      }
      return iterable.__iterator(
        type === ITERATE_VALUES ? ITERATE_KEYS : ITERATE_VALUES,
        reverse
      );
    };
    return flipSequence;
  }


  function mapFactory(iterable, mapper, context) {
    var mappedSequence = makeSequence(iterable);
    mappedSequence.size = iterable.size;
    mappedSequence.has = function(key ) {return iterable.has(key)};
    mappedSequence.get = function(key, notSetValue)  {
      var v = iterable.get(key, NOT_SET);
      return v === NOT_SET ?
        notSetValue :
        mapper.call(context, v, key, iterable);
    };
    mappedSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      return iterable.__iterate(
        function(v, k, c)  {return fn(mapper.call(context, v, k, c), k, this$0) !== false},
        reverse
      );
    };
    mappedSequence.__iteratorUncached = function (type, reverse) {
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      return new Iterator(function()  {
        var step = iterator.next();
        if (step.done) {
          return step;
        }
        var entry = step.value;
        var key = entry[0];
        return iteratorValue(
          type,
          key,
          mapper.call(context, entry[1], key, iterable),
          step
        );
      });
    };
    return mappedSequence;
  }


  function reverseFactory(iterable, useKeys) {
    var reversedSequence = makeSequence(iterable);
    reversedSequence._iter = iterable;
    reversedSequence.size = iterable.size;
    reversedSequence.reverse = function()  {return iterable};
    if (iterable.flip) {
      reversedSequence.flip = function () {
        var flipSequence = flipFactory(iterable);
        flipSequence.reverse = function()  {return iterable.flip()};
        return flipSequence;
      };
    }
    reversedSequence.get = function(key, notSetValue) 
      {return iterable.get(useKeys ? key : -1 - key, notSetValue)};
    reversedSequence.has = function(key )
      {return iterable.has(useKeys ? key : -1 - key)};
    reversedSequence.includes = function(value ) {return iterable.includes(value)};
    reversedSequence.cacheResult = cacheResultThrough;
    reversedSequence.__iterate = function (fn, reverse) {var this$0 = this;
      return iterable.__iterate(function(v, k)  {return fn(v, k, this$0)}, !reverse);
    };
    reversedSequence.__iterator =
      function(type, reverse)  {return iterable.__iterator(type, !reverse)};
    return reversedSequence;
  }


  function filterFactory(iterable, predicate, context, useKeys) {
    var filterSequence = makeSequence(iterable);
    if (useKeys) {
      filterSequence.has = function(key ) {
        var v = iterable.get(key, NOT_SET);
        return v !== NOT_SET && !!predicate.call(context, v, key, iterable);
      };
      filterSequence.get = function(key, notSetValue)  {
        var v = iterable.get(key, NOT_SET);
        return v !== NOT_SET && predicate.call(context, v, key, iterable) ?
          v : notSetValue;
      };
    }
    filterSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      var iterations = 0;
      iterable.__iterate(function(v, k, c)  {
        if (predicate.call(context, v, k, c)) {
          iterations++;
          return fn(v, useKeys ? k : iterations - 1, this$0);
        }
      }, reverse);
      return iterations;
    };
    filterSequence.__iteratorUncached = function (type, reverse) {
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      var iterations = 0;
      return new Iterator(function()  {
        while (true) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          var entry = step.value;
          var key = entry[0];
          var value = entry[1];
          if (predicate.call(context, value, key, iterable)) {
            return iteratorValue(type, useKeys ? key : iterations++, value, step);
          }
        }
      });
    };
    return filterSequence;
  }


  function countByFactory(iterable, grouper, context) {
    var groups = Map().asMutable();
    iterable.__iterate(function(v, k)  {
      groups.update(
        grouper.call(context, v, k, iterable),
        0,
        function(a ) {return a + 1}
      );
    });
    return groups.asImmutable();
  }


  function groupByFactory(iterable, grouper, context) {
    var isKeyedIter = isKeyed(iterable);
    var groups = (isOrdered(iterable) ? OrderedMap() : Map()).asMutable();
    iterable.__iterate(function(v, k)  {
      groups.update(
        grouper.call(context, v, k, iterable),
        function(a ) {return (a = a || [], a.push(isKeyedIter ? [k, v] : v), a)}
      );
    });
    var coerce = iterableClass(iterable);
    return groups.map(function(arr ) {return reify(iterable, coerce(arr))});
  }


  function sliceFactory(iterable, begin, end, useKeys) {
    var originalSize = iterable.size;

    // Sanitize begin & end using this shorthand for ToInt32(argument)
    // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
    if (begin !== undefined) {
      begin = begin | 0;
    }
    if (end !== undefined) {
      end = end | 0;
    }

    if (wholeSlice(begin, end, originalSize)) {
      return iterable;
    }

    var resolvedBegin = resolveBegin(begin, originalSize);
    var resolvedEnd = resolveEnd(end, originalSize);

    // begin or end will be NaN if they were provided as negative numbers and
    // this iterable's size is unknown. In that case, cache first so there is
    // a known size and these do not resolve to NaN.
    if (resolvedBegin !== resolvedBegin || resolvedEnd !== resolvedEnd) {
      return sliceFactory(iterable.toSeq().cacheResult(), begin, end, useKeys);
    }

    // Note: resolvedEnd is undefined when the original sequence's length is
    // unknown and this slice did not supply an end and should contain all
    // elements after resolvedBegin.
    // In that case, resolvedSize will be NaN and sliceSize will remain undefined.
    var resolvedSize = resolvedEnd - resolvedBegin;
    var sliceSize;
    if (resolvedSize === resolvedSize) {
      sliceSize = resolvedSize < 0 ? 0 : resolvedSize;
    }

    var sliceSeq = makeSequence(iterable);

    // If iterable.size is undefined, the size of the realized sliceSeq is
    // unknown at this point unless the number of items to slice is 0
    sliceSeq.size = sliceSize === 0 ? sliceSize : iterable.size && sliceSize || undefined;

    if (!useKeys && isSeq(iterable) && sliceSize >= 0) {
      sliceSeq.get = function (index, notSetValue) {
        index = wrapIndex(this, index);
        return index >= 0 && index < sliceSize ?
          iterable.get(index + resolvedBegin, notSetValue) :
          notSetValue;
      };
    }

    sliceSeq.__iterateUncached = function(fn, reverse) {var this$0 = this;
      if (sliceSize === 0) {
        return 0;
      }
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var skipped = 0;
      var isSkipping = true;
      var iterations = 0;
      iterable.__iterate(function(v, k)  {
        if (!(isSkipping && (isSkipping = skipped++ < resolvedBegin))) {
          iterations++;
          return fn(v, useKeys ? k : iterations - 1, this$0) !== false &&
                 iterations !== sliceSize;
        }
      });
      return iterations;
    };

    sliceSeq.__iteratorUncached = function(type, reverse) {
      if (sliceSize !== 0 && reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      // Don't bother instantiating parent iterator if taking 0.
      var iterator = sliceSize !== 0 && iterable.__iterator(type, reverse);
      var skipped = 0;
      var iterations = 0;
      return new Iterator(function()  {
        while (skipped++ < resolvedBegin) {
          iterator.next();
        }
        if (++iterations > sliceSize) {
          return iteratorDone();
        }
        var step = iterator.next();
        if (useKeys || type === ITERATE_VALUES) {
          return step;
        } else if (type === ITERATE_KEYS) {
          return iteratorValue(type, iterations - 1, undefined, step);
        } else {
          return iteratorValue(type, iterations - 1, step.value[1], step);
        }
      });
    };

    return sliceSeq;
  }


  function takeWhileFactory(iterable, predicate, context) {
    var takeSequence = makeSequence(iterable);
    takeSequence.__iterateUncached = function(fn, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterations = 0;
      iterable.__iterate(function(v, k, c) 
        {return predicate.call(context, v, k, c) && ++iterations && fn(v, k, this$0)}
      );
      return iterations;
    };
    takeSequence.__iteratorUncached = function(type, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      var iterating = true;
      return new Iterator(function()  {
        if (!iterating) {
          return iteratorDone();
        }
        var step = iterator.next();
        if (step.done) {
          return step;
        }
        var entry = step.value;
        var k = entry[0];
        var v = entry[1];
        if (!predicate.call(context, v, k, this$0)) {
          iterating = false;
          return iteratorDone();
        }
        return type === ITERATE_ENTRIES ? step :
          iteratorValue(type, k, v, step);
      });
    };
    return takeSequence;
  }


  function skipWhileFactory(iterable, predicate, context, useKeys) {
    var skipSequence = makeSequence(iterable);
    skipSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var isSkipping = true;
      var iterations = 0;
      iterable.__iterate(function(v, k, c)  {
        if (!(isSkipping && (isSkipping = predicate.call(context, v, k, c)))) {
          iterations++;
          return fn(v, useKeys ? k : iterations - 1, this$0);
        }
      });
      return iterations;
    };
    skipSequence.__iteratorUncached = function(type, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      var skipping = true;
      var iterations = 0;
      return new Iterator(function()  {
        var step, k, v;
        do {
          step = iterator.next();
          if (step.done) {
            if (useKeys || type === ITERATE_VALUES) {
              return step;
            } else if (type === ITERATE_KEYS) {
              return iteratorValue(type, iterations++, undefined, step);
            } else {
              return iteratorValue(type, iterations++, step.value[1], step);
            }
          }
          var entry = step.value;
          k = entry[0];
          v = entry[1];
          skipping && (skipping = predicate.call(context, v, k, this$0));
        } while (skipping);
        return type === ITERATE_ENTRIES ? step :
          iteratorValue(type, k, v, step);
      });
    };
    return skipSequence;
  }


  function concatFactory(iterable, values) {
    var isKeyedIterable = isKeyed(iterable);
    var iters = [iterable].concat(values).map(function(v ) {
      if (!isIterable(v)) {
        v = isKeyedIterable ?
          keyedSeqFromValue(v) :
          indexedSeqFromValue(Array.isArray(v) ? v : [v]);
      } else if (isKeyedIterable) {
        v = KeyedIterable(v);
      }
      return v;
    }).filter(function(v ) {return v.size !== 0});

    if (iters.length === 0) {
      return iterable;
    }

    if (iters.length === 1) {
      var singleton = iters[0];
      if (singleton === iterable ||
          isKeyedIterable && isKeyed(singleton) ||
          isIndexed(iterable) && isIndexed(singleton)) {
        return singleton;
      }
    }

    var concatSeq = new ArraySeq(iters);
    if (isKeyedIterable) {
      concatSeq = concatSeq.toKeyedSeq();
    } else if (!isIndexed(iterable)) {
      concatSeq = concatSeq.toSetSeq();
    }
    concatSeq = concatSeq.flatten(true);
    concatSeq.size = iters.reduce(
      function(sum, seq)  {
        if (sum !== undefined) {
          var size = seq.size;
          if (size !== undefined) {
            return sum + size;
          }
        }
      },
      0
    );
    return concatSeq;
  }


  function flattenFactory(iterable, depth, useKeys) {
    var flatSequence = makeSequence(iterable);
    flatSequence.__iterateUncached = function(fn, reverse) {
      var iterations = 0;
      var stopped = false;
      function flatDeep(iter, currentDepth) {var this$0 = this;
        iter.__iterate(function(v, k)  {
          if ((!depth || currentDepth < depth) && isIterable(v)) {
            flatDeep(v, currentDepth + 1);
          } else if (fn(v, useKeys ? k : iterations++, this$0) === false) {
            stopped = true;
          }
          return !stopped;
        }, reverse);
      }
      flatDeep(iterable, 0);
      return iterations;
    };
    flatSequence.__iteratorUncached = function(type, reverse) {
      var iterator = iterable.__iterator(type, reverse);
      var stack = [];
      var iterations = 0;
      return new Iterator(function()  {
        while (iterator) {
          var step = iterator.next();
          if (step.done !== false) {
            iterator = stack.pop();
            continue;
          }
          var v = step.value;
          if (type === ITERATE_ENTRIES) {
            v = v[1];
          }
          if ((!depth || stack.length < depth) && isIterable(v)) {
            stack.push(iterator);
            iterator = v.__iterator(type, reverse);
          } else {
            return useKeys ? step : iteratorValue(type, iterations++, v, step);
          }
        }
        return iteratorDone();
      });
    };
    return flatSequence;
  }


  function flatMapFactory(iterable, mapper, context) {
    var coerce = iterableClass(iterable);
    return iterable.toSeq().map(
      function(v, k)  {return coerce(mapper.call(context, v, k, iterable))}
    ).flatten(true);
  }


  function interposeFactory(iterable, separator) {
    var interposedSequence = makeSequence(iterable);
    interposedSequence.size = iterable.size && iterable.size * 2 -1;
    interposedSequence.__iterateUncached = function(fn, reverse) {var this$0 = this;
      var iterations = 0;
      iterable.__iterate(function(v, k) 
        {return (!iterations || fn(separator, iterations++, this$0) !== false) &&
        fn(v, iterations++, this$0) !== false},
        reverse
      );
      return iterations;
    };
    interposedSequence.__iteratorUncached = function(type, reverse) {
      var iterator = iterable.__iterator(ITERATE_VALUES, reverse);
      var iterations = 0;
      var step;
      return new Iterator(function()  {
        if (!step || iterations % 2) {
          step = iterator.next();
          if (step.done) {
            return step;
          }
        }
        return iterations % 2 ?
          iteratorValue(type, iterations++, separator) :
          iteratorValue(type, iterations++, step.value, step);
      });
    };
    return interposedSequence;
  }


  function sortFactory(iterable, comparator, mapper) {
    if (!comparator) {
      comparator = defaultComparator;
    }
    var isKeyedIterable = isKeyed(iterable);
    var index = 0;
    var entries = iterable.toSeq().map(
      function(v, k)  {return [k, v, index++, mapper ? mapper(v, k, iterable) : v]}
    ).toArray();
    entries.sort(function(a, b)  {return comparator(a[3], b[3]) || a[2] - b[2]}).forEach(
      isKeyedIterable ?
      function(v, i)  { entries[i].length = 2; } :
      function(v, i)  { entries[i] = v[1]; }
    );
    return isKeyedIterable ? KeyedSeq(entries) :
      isIndexed(iterable) ? IndexedSeq(entries) :
      SetSeq(entries);
  }


  function maxFactory(iterable, comparator, mapper) {
    if (!comparator) {
      comparator = defaultComparator;
    }
    if (mapper) {
      var entry = iterable.toSeq()
        .map(function(v, k)  {return [v, mapper(v, k, iterable)]})
        .reduce(function(a, b)  {return maxCompare(comparator, a[1], b[1]) ? b : a});
      return entry && entry[0];
    } else {
      return iterable.reduce(function(a, b)  {return maxCompare(comparator, a, b) ? b : a});
    }
  }

  function maxCompare(comparator, a, b) {
    var comp = comparator(b, a);
    // b is considered the new max if the comparator declares them equal, but
    // they are not equal and b is in fact a nullish value.
    return (comp === 0 && b !== a && (b === undefined || b === null || b !== b)) || comp > 0;
  }


  function zipWithFactory(keyIter, zipper, iters) {
    var zipSequence = makeSequence(keyIter);
    zipSequence.size = new ArraySeq(iters).map(function(i ) {return i.size}).min();
    // Note: this a generic base implementation of __iterate in terms of
    // __iterator which may be more generically useful in the future.
    zipSequence.__iterate = function(fn, reverse) {
      /* generic:
      var iterator = this.__iterator(ITERATE_ENTRIES, reverse);
      var step;
      var iterations = 0;
      while (!(step = iterator.next()).done) {
        iterations++;
        if (fn(step.value[1], step.value[0], this) === false) {
          break;
        }
      }
      return iterations;
      */
      // indexed:
      var iterator = this.__iterator(ITERATE_VALUES, reverse);
      var step;
      var iterations = 0;
      while (!(step = iterator.next()).done) {
        if (fn(step.value, iterations++, this) === false) {
          break;
        }
      }
      return iterations;
    };
    zipSequence.__iteratorUncached = function(type, reverse) {
      var iterators = iters.map(function(i )
        {return (i = Iterable(i), getIterator(reverse ? i.reverse() : i))}
      );
      var iterations = 0;
      var isDone = false;
      return new Iterator(function()  {
        var steps;
        if (!isDone) {
          steps = iterators.map(function(i ) {return i.next()});
          isDone = steps.some(function(s ) {return s.done});
        }
        if (isDone) {
          return iteratorDone();
        }
        return iteratorValue(
          type,
          iterations++,
          zipper.apply(null, steps.map(function(s ) {return s.value}))
        );
      });
    };
    return zipSequence
  }


  // #pragma Helper Functions

  function reify(iter, seq) {
    return isSeq(iter) ? seq : iter.constructor(seq);
  }

  function validateEntry(entry) {
    if (entry !== Object(entry)) {
      throw new TypeError('Expected [K, V] tuple: ' + entry);
    }
  }

  function resolveSize(iter) {
    assertNotInfinite(iter.size);
    return ensureSize(iter);
  }

  function iterableClass(iterable) {
    return isKeyed(iterable) ? KeyedIterable :
      isIndexed(iterable) ? IndexedIterable :
      SetIterable;
  }

  function makeSequence(iterable) {
    return Object.create(
      (
        isKeyed(iterable) ? KeyedSeq :
        isIndexed(iterable) ? IndexedSeq :
        SetSeq
      ).prototype
    );
  }

  function cacheResultThrough() {
    if (this._iter.cacheResult) {
      this._iter.cacheResult();
      this.size = this._iter.size;
      return this;
    } else {
      return Seq.prototype.cacheResult.call(this);
    }
  }

  function defaultComparator(a, b) {
    return a > b ? 1 : a < b ? -1 : 0;
  }

  function forceIterator(keyPath) {
    var iter = getIterator(keyPath);
    if (!iter) {
      // Array might not be iterable in this environment, so we need a fallback
      // to our wrapped type.
      if (!isArrayLike(keyPath)) {
        throw new TypeError('Expected iterable or array-like: ' + keyPath);
      }
      iter = getIterator(Iterable(keyPath));
    }
    return iter;
  }

  createClass(Record, KeyedCollection);

    function Record(defaultValues, name) {
      var hasInitialized;

      var RecordType = function Record(values) {
        if (values instanceof RecordType) {
          return values;
        }
        if (!(this instanceof RecordType)) {
          return new RecordType(values);
        }
        if (!hasInitialized) {
          hasInitialized = true;
          var keys = Object.keys(defaultValues);
          setProps(RecordTypePrototype, keys);
          RecordTypePrototype.size = keys.length;
          RecordTypePrototype._name = name;
          RecordTypePrototype._keys = keys;
          RecordTypePrototype._defaultValues = defaultValues;
        }
        this._map = Map(values);
      };

      var RecordTypePrototype = RecordType.prototype = Object.create(RecordPrototype);
      RecordTypePrototype.constructor = RecordType;

      return RecordType;
    }

    Record.prototype.toString = function() {
      return this.__toString(recordName(this) + ' {', '}');
    };

    // @pragma Access

    Record.prototype.has = function(k) {
      return this._defaultValues.hasOwnProperty(k);
    };

    Record.prototype.get = function(k, notSetValue) {
      if (!this.has(k)) {
        return notSetValue;
      }
      var defaultVal = this._defaultValues[k];
      return this._map ? this._map.get(k, defaultVal) : defaultVal;
    };

    // @pragma Modification

    Record.prototype.clear = function() {
      if (this.__ownerID) {
        this._map && this._map.clear();
        return this;
      }
      var RecordType = this.constructor;
      return RecordType._empty || (RecordType._empty = makeRecord(this, emptyMap()));
    };

    Record.prototype.set = function(k, v) {
      if (!this.has(k)) {
        throw new Error('Cannot set unknown key "' + k + '" on ' + recordName(this));
      }
      var newMap = this._map && this._map.set(k, v);
      if (this.__ownerID || newMap === this._map) {
        return this;
      }
      return makeRecord(this, newMap);
    };

    Record.prototype.remove = function(k) {
      if (!this.has(k)) {
        return this;
      }
      var newMap = this._map && this._map.remove(k);
      if (this.__ownerID || newMap === this._map) {
        return this;
      }
      return makeRecord(this, newMap);
    };

    Record.prototype.wasAltered = function() {
      return this._map.wasAltered();
    };

    Record.prototype.__iterator = function(type, reverse) {var this$0 = this;
      return KeyedIterable(this._defaultValues).map(function(_, k)  {return this$0.get(k)}).__iterator(type, reverse);
    };

    Record.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return KeyedIterable(this._defaultValues).map(function(_, k)  {return this$0.get(k)}).__iterate(fn, reverse);
    };

    Record.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      var newMap = this._map && this._map.__ensureOwner(ownerID);
      if (!ownerID) {
        this.__ownerID = ownerID;
        this._map = newMap;
        return this;
      }
      return makeRecord(this, newMap, ownerID);
    };


  var RecordPrototype = Record.prototype;
  RecordPrototype[DELETE] = RecordPrototype.remove;
  RecordPrototype.deleteIn =
  RecordPrototype.removeIn = MapPrototype.removeIn;
  RecordPrototype.merge = MapPrototype.merge;
  RecordPrototype.mergeWith = MapPrototype.mergeWith;
  RecordPrototype.mergeIn = MapPrototype.mergeIn;
  RecordPrototype.mergeDeep = MapPrototype.mergeDeep;
  RecordPrototype.mergeDeepWith = MapPrototype.mergeDeepWith;
  RecordPrototype.mergeDeepIn = MapPrototype.mergeDeepIn;
  RecordPrototype.setIn = MapPrototype.setIn;
  RecordPrototype.update = MapPrototype.update;
  RecordPrototype.updateIn = MapPrototype.updateIn;
  RecordPrototype.withMutations = MapPrototype.withMutations;
  RecordPrototype.asMutable = MapPrototype.asMutable;
  RecordPrototype.asImmutable = MapPrototype.asImmutable;


  function makeRecord(likeRecord, map, ownerID) {
    var record = Object.create(Object.getPrototypeOf(likeRecord));
    record._map = map;
    record.__ownerID = ownerID;
    return record;
  }

  function recordName(record) {
    return record._name || record.constructor.name || 'Record';
  }

  function setProps(prototype, names) {
    try {
      names.forEach(setProp.bind(undefined, prototype));
    } catch (error) {
      // Object.defineProperty failed. Probably IE8.
    }
  }

  function setProp(prototype, name) {
    Object.defineProperty(prototype, name, {
      get: function() {
        return this.get(name);
      },
      set: function(value) {
        invariant(this.__ownerID, 'Cannot set on an immutable record.');
        this.set(name, value);
      }
    });
  }

  createClass(Set, SetCollection);

    // @pragma Construction

    function Set(value) {
      return value === null || value === undefined ? emptySet() :
        isSet(value) && !isOrdered(value) ? value :
        emptySet().withMutations(function(set ) {
          var iter = SetIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v ) {return set.add(v)});
        });
    }

    Set.of = function(/*...values*/) {
      return this(arguments);
    };

    Set.fromKeys = function(value) {
      return this(KeyedIterable(value).keySeq());
    };

    Set.prototype.toString = function() {
      return this.__toString('Set {', '}');
    };

    // @pragma Access

    Set.prototype.has = function(value) {
      return this._map.has(value);
    };

    // @pragma Modification

    Set.prototype.add = function(value) {
      return updateSet(this, this._map.set(value, true));
    };

    Set.prototype.remove = function(value) {
      return updateSet(this, this._map.remove(value));
    };

    Set.prototype.clear = function() {
      return updateSet(this, this._map.clear());
    };

    // @pragma Composition

    Set.prototype.union = function() {var iters = SLICE$0.call(arguments, 0);
      iters = iters.filter(function(x ) {return x.size !== 0});
      if (iters.length === 0) {
        return this;
      }
      if (this.size === 0 && !this.__ownerID && iters.length === 1) {
        return this.constructor(iters[0]);
      }
      return this.withMutations(function(set ) {
        for (var ii = 0; ii < iters.length; ii++) {
          SetIterable(iters[ii]).forEach(function(value ) {return set.add(value)});
        }
      });
    };

    Set.prototype.intersect = function() {var iters = SLICE$0.call(arguments, 0);
      if (iters.length === 0) {
        return this;
      }
      iters = iters.map(function(iter ) {return SetIterable(iter)});
      var originalSet = this;
      return this.withMutations(function(set ) {
        originalSet.forEach(function(value ) {
          if (!iters.every(function(iter ) {return iter.includes(value)})) {
            set.remove(value);
          }
        });
      });
    };

    Set.prototype.subtract = function() {var iters = SLICE$0.call(arguments, 0);
      if (iters.length === 0) {
        return this;
      }
      iters = iters.map(function(iter ) {return SetIterable(iter)});
      var originalSet = this;
      return this.withMutations(function(set ) {
        originalSet.forEach(function(value ) {
          if (iters.some(function(iter ) {return iter.includes(value)})) {
            set.remove(value);
          }
        });
      });
    };

    Set.prototype.merge = function() {
      return this.union.apply(this, arguments);
    };

    Set.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return this.union.apply(this, iters);
    };

    Set.prototype.sort = function(comparator) {
      // Late binding
      return OrderedSet(sortFactory(this, comparator));
    };

    Set.prototype.sortBy = function(mapper, comparator) {
      // Late binding
      return OrderedSet(sortFactory(this, comparator, mapper));
    };

    Set.prototype.wasAltered = function() {
      return this._map.wasAltered();
    };

    Set.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._map.__iterate(function(_, k)  {return fn(k, k, this$0)}, reverse);
    };

    Set.prototype.__iterator = function(type, reverse) {
      return this._map.map(function(_, k)  {return k}).__iterator(type, reverse);
    };

    Set.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      var newMap = this._map.__ensureOwner(ownerID);
      if (!ownerID) {
        this.__ownerID = ownerID;
        this._map = newMap;
        return this;
      }
      return this.__make(newMap, ownerID);
    };


  function isSet(maybeSet) {
    return !!(maybeSet && maybeSet[IS_SET_SENTINEL]);
  }

  Set.isSet = isSet;

  var IS_SET_SENTINEL = '@@__IMMUTABLE_SET__@@';

  var SetPrototype = Set.prototype;
  SetPrototype[IS_SET_SENTINEL] = true;
  SetPrototype[DELETE] = SetPrototype.remove;
  SetPrototype.mergeDeep = SetPrototype.merge;
  SetPrototype.mergeDeepWith = SetPrototype.mergeWith;
  SetPrototype.withMutations = MapPrototype.withMutations;
  SetPrototype.asMutable = MapPrototype.asMutable;
  SetPrototype.asImmutable = MapPrototype.asImmutable;

  SetPrototype.__empty = emptySet;
  SetPrototype.__make = makeSet;

  function updateSet(set, newMap) {
    if (set.__ownerID) {
      set.size = newMap.size;
      set._map = newMap;
      return set;
    }
    return newMap === set._map ? set :
      newMap.size === 0 ? set.__empty() :
      set.__make(newMap);
  }

  function makeSet(map, ownerID) {
    var set = Object.create(SetPrototype);
    set.size = map ? map.size : 0;
    set._map = map;
    set.__ownerID = ownerID;
    return set;
  }

  var EMPTY_SET;
  function emptySet() {
    return EMPTY_SET || (EMPTY_SET = makeSet(emptyMap()));
  }

  createClass(OrderedSet, Set);

    // @pragma Construction

    function OrderedSet(value) {
      return value === null || value === undefined ? emptyOrderedSet() :
        isOrderedSet(value) ? value :
        emptyOrderedSet().withMutations(function(set ) {
          var iter = SetIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v ) {return set.add(v)});
        });
    }

    OrderedSet.of = function(/*...values*/) {
      return this(arguments);
    };

    OrderedSet.fromKeys = function(value) {
      return this(KeyedIterable(value).keySeq());
    };

    OrderedSet.prototype.toString = function() {
      return this.__toString('OrderedSet {', '}');
    };


  function isOrderedSet(maybeOrderedSet) {
    return isSet(maybeOrderedSet) && isOrdered(maybeOrderedSet);
  }

  OrderedSet.isOrderedSet = isOrderedSet;

  var OrderedSetPrototype = OrderedSet.prototype;
  OrderedSetPrototype[IS_ORDERED_SENTINEL] = true;

  OrderedSetPrototype.__empty = emptyOrderedSet;
  OrderedSetPrototype.__make = makeOrderedSet;

  function makeOrderedSet(map, ownerID) {
    var set = Object.create(OrderedSetPrototype);
    set.size = map ? map.size : 0;
    set._map = map;
    set.__ownerID = ownerID;
    return set;
  }

  var EMPTY_ORDERED_SET;
  function emptyOrderedSet() {
    return EMPTY_ORDERED_SET || (EMPTY_ORDERED_SET = makeOrderedSet(emptyOrderedMap()));
  }

  createClass(Stack, IndexedCollection);

    // @pragma Construction

    function Stack(value) {
      return value === null || value === undefined ? emptyStack() :
        isStack(value) ? value :
        emptyStack().unshiftAll(value);
    }

    Stack.of = function(/*...values*/) {
      return this(arguments);
    };

    Stack.prototype.toString = function() {
      return this.__toString('Stack [', ']');
    };

    // @pragma Access

    Stack.prototype.get = function(index, notSetValue) {
      var head = this._head;
      index = wrapIndex(this, index);
      while (head && index--) {
        head = head.next;
      }
      return head ? head.value : notSetValue;
    };

    Stack.prototype.peek = function() {
      return this._head && this._head.value;
    };

    // @pragma Modification

    Stack.prototype.push = function(/*...values*/) {
      if (arguments.length === 0) {
        return this;
      }
      var newSize = this.size + arguments.length;
      var head = this._head;
      for (var ii = arguments.length - 1; ii >= 0; ii--) {
        head = {
          value: arguments[ii],
          next: head
        };
      }
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    Stack.prototype.pushAll = function(iter) {
      iter = IndexedIterable(iter);
      if (iter.size === 0) {
        return this;
      }
      assertNotInfinite(iter.size);
      var newSize = this.size;
      var head = this._head;
      iter.reverse().forEach(function(value ) {
        newSize++;
        head = {
          value: value,
          next: head
        };
      });
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    Stack.prototype.pop = function() {
      return this.slice(1);
    };

    Stack.prototype.unshift = function(/*...values*/) {
      return this.push.apply(this, arguments);
    };

    Stack.prototype.unshiftAll = function(iter) {
      return this.pushAll(iter);
    };

    Stack.prototype.shift = function() {
      return this.pop.apply(this, arguments);
    };

    Stack.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._head = undefined;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyStack();
    };

    Stack.prototype.slice = function(begin, end) {
      if (wholeSlice(begin, end, this.size)) {
        return this;
      }
      var resolvedBegin = resolveBegin(begin, this.size);
      var resolvedEnd = resolveEnd(end, this.size);
      if (resolvedEnd !== this.size) {
        // super.slice(begin, end);
        return IndexedCollection.prototype.slice.call(this, begin, end);
      }
      var newSize = this.size - resolvedBegin;
      var head = this._head;
      while (resolvedBegin--) {
        head = head.next;
      }
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    // @pragma Mutability

    Stack.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        this.__ownerID = ownerID;
        this.__altered = false;
        return this;
      }
      return makeStack(this.size, this._head, ownerID, this.__hash);
    };

    // @pragma Iteration

    Stack.prototype.__iterate = function(fn, reverse) {
      if (reverse) {
        return this.reverse().__iterate(fn);
      }
      var iterations = 0;
      var node = this._head;
      while (node) {
        if (fn(node.value, iterations++, this) === false) {
          break;
        }
        node = node.next;
      }
      return iterations;
    };

    Stack.prototype.__iterator = function(type, reverse) {
      if (reverse) {
        return this.reverse().__iterator(type);
      }
      var iterations = 0;
      var node = this._head;
      return new Iterator(function()  {
        if (node) {
          var value = node.value;
          node = node.next;
          return iteratorValue(type, iterations++, value);
        }
        return iteratorDone();
      });
    };


  function isStack(maybeStack) {
    return !!(maybeStack && maybeStack[IS_STACK_SENTINEL]);
  }

  Stack.isStack = isStack;

  var IS_STACK_SENTINEL = '@@__IMMUTABLE_STACK__@@';

  var StackPrototype = Stack.prototype;
  StackPrototype[IS_STACK_SENTINEL] = true;
  StackPrototype.withMutations = MapPrototype.withMutations;
  StackPrototype.asMutable = MapPrototype.asMutable;
  StackPrototype.asImmutable = MapPrototype.asImmutable;
  StackPrototype.wasAltered = MapPrototype.wasAltered;


  function makeStack(size, head, ownerID, hash) {
    var map = Object.create(StackPrototype);
    map.size = size;
    map._head = head;
    map.__ownerID = ownerID;
    map.__hash = hash;
    map.__altered = false;
    return map;
  }

  var EMPTY_STACK;
  function emptyStack() {
    return EMPTY_STACK || (EMPTY_STACK = makeStack(0));
  }

  /**
   * Contributes additional methods to a constructor
   */
  function mixin(ctor, methods) {
    var keyCopier = function(key ) { ctor.prototype[key] = methods[key]; };
    Object.keys(methods).forEach(keyCopier);
    Object.getOwnPropertySymbols &&
      Object.getOwnPropertySymbols(methods).forEach(keyCopier);
    return ctor;
  }

  Iterable.Iterator = Iterator;

  mixin(Iterable, {

    // ### Conversion to other types

    toArray: function() {
      assertNotInfinite(this.size);
      var array = new Array(this.size || 0);
      this.valueSeq().__iterate(function(v, i)  { array[i] = v; });
      return array;
    },

    toIndexedSeq: function() {
      return new ToIndexedSequence(this);
    },

    toJS: function() {
      return this.toSeq().map(
        function(value ) {return value && typeof value.toJS === 'function' ? value.toJS() : value}
      ).__toJS();
    },

    toJSON: function() {
      return this.toSeq().map(
        function(value ) {return value && typeof value.toJSON === 'function' ? value.toJSON() : value}
      ).__toJS();
    },

    toKeyedSeq: function() {
      return new ToKeyedSequence(this, true);
    },

    toMap: function() {
      // Use Late Binding here to solve the circular dependency.
      return Map(this.toKeyedSeq());
    },

    toObject: function() {
      assertNotInfinite(this.size);
      var object = {};
      this.__iterate(function(v, k)  { object[k] = v; });
      return object;
    },

    toOrderedMap: function() {
      // Use Late Binding here to solve the circular dependency.
      return OrderedMap(this.toKeyedSeq());
    },

    toOrderedSet: function() {
      // Use Late Binding here to solve the circular dependency.
      return OrderedSet(isKeyed(this) ? this.valueSeq() : this);
    },

    toSet: function() {
      // Use Late Binding here to solve the circular dependency.
      return Set(isKeyed(this) ? this.valueSeq() : this);
    },

    toSetSeq: function() {
      return new ToSetSequence(this);
    },

    toSeq: function() {
      return isIndexed(this) ? this.toIndexedSeq() :
        isKeyed(this) ? this.toKeyedSeq() :
        this.toSetSeq();
    },

    toStack: function() {
      // Use Late Binding here to solve the circular dependency.
      return Stack(isKeyed(this) ? this.valueSeq() : this);
    },

    toList: function() {
      // Use Late Binding here to solve the circular dependency.
      return List(isKeyed(this) ? this.valueSeq() : this);
    },


    // ### Common JavaScript methods and properties

    toString: function() {
      return '[Iterable]';
    },

    __toString: function(head, tail) {
      if (this.size === 0) {
        return head + tail;
      }
      return head + ' ' + this.toSeq().map(this.__toStringMapper).join(', ') + ' ' + tail;
    },


    // ### ES6 Collection methods (ES6 Array and Map)

    concat: function() {var values = SLICE$0.call(arguments, 0);
      return reify(this, concatFactory(this, values));
    },

    includes: function(searchValue) {
      return this.some(function(value ) {return is(value, searchValue)});
    },

    entries: function() {
      return this.__iterator(ITERATE_ENTRIES);
    },

    every: function(predicate, context) {
      assertNotInfinite(this.size);
      var returnValue = true;
      this.__iterate(function(v, k, c)  {
        if (!predicate.call(context, v, k, c)) {
          returnValue = false;
          return false;
        }
      });
      return returnValue;
    },

    filter: function(predicate, context) {
      return reify(this, filterFactory(this, predicate, context, true));
    },

    find: function(predicate, context, notSetValue) {
      var entry = this.findEntry(predicate, context);
      return entry ? entry[1] : notSetValue;
    },

    findEntry: function(predicate, context) {
      var found;
      this.__iterate(function(v, k, c)  {
        if (predicate.call(context, v, k, c)) {
          found = [k, v];
          return false;
        }
      });
      return found;
    },

    findLastEntry: function(predicate, context) {
      return this.toSeq().reverse().findEntry(predicate, context);
    },

    forEach: function(sideEffect, context) {
      assertNotInfinite(this.size);
      return this.__iterate(context ? sideEffect.bind(context) : sideEffect);
    },

    join: function(separator) {
      assertNotInfinite(this.size);
      separator = separator !== undefined ? '' + separator : ',';
      var joined = '';
      var isFirst = true;
      this.__iterate(function(v ) {
        isFirst ? (isFirst = false) : (joined += separator);
        joined += v !== null && v !== undefined ? v.toString() : '';
      });
      return joined;
    },

    keys: function() {
      return this.__iterator(ITERATE_KEYS);
    },

    map: function(mapper, context) {
      return reify(this, mapFactory(this, mapper, context));
    },

    reduce: function(reducer, initialReduction, context) {
      assertNotInfinite(this.size);
      var reduction;
      var useFirst;
      if (arguments.length < 2) {
        useFirst = true;
      } else {
        reduction = initialReduction;
      }
      this.__iterate(function(v, k, c)  {
        if (useFirst) {
          useFirst = false;
          reduction = v;
        } else {
          reduction = reducer.call(context, reduction, v, k, c);
        }
      });
      return reduction;
    },

    reduceRight: function(reducer, initialReduction, context) {
      var reversed = this.toKeyedSeq().reverse();
      return reversed.reduce.apply(reversed, arguments);
    },

    reverse: function() {
      return reify(this, reverseFactory(this, true));
    },

    slice: function(begin, end) {
      return reify(this, sliceFactory(this, begin, end, true));
    },

    some: function(predicate, context) {
      return !this.every(not(predicate), context);
    },

    sort: function(comparator) {
      return reify(this, sortFactory(this, comparator));
    },

    values: function() {
      return this.__iterator(ITERATE_VALUES);
    },


    // ### More sequential methods

    butLast: function() {
      return this.slice(0, -1);
    },

    isEmpty: function() {
      return this.size !== undefined ? this.size === 0 : !this.some(function()  {return true});
    },

    count: function(predicate, context) {
      return ensureSize(
        predicate ? this.toSeq().filter(predicate, context) : this
      );
    },

    countBy: function(grouper, context) {
      return countByFactory(this, grouper, context);
    },

    equals: function(other) {
      return deepEqual(this, other);
    },

    entrySeq: function() {
      var iterable = this;
      if (iterable._cache) {
        // We cache as an entries array, so we can just return the cache!
        return new ArraySeq(iterable._cache);
      }
      var entriesSequence = iterable.toSeq().map(entryMapper).toIndexedSeq();
      entriesSequence.fromEntrySeq = function()  {return iterable.toSeq()};
      return entriesSequence;
    },

    filterNot: function(predicate, context) {
      return this.filter(not(predicate), context);
    },

    findLast: function(predicate, context, notSetValue) {
      return this.toKeyedSeq().reverse().find(predicate, context, notSetValue);
    },

    first: function() {
      return this.find(returnTrue);
    },

    flatMap: function(mapper, context) {
      return reify(this, flatMapFactory(this, mapper, context));
    },

    flatten: function(depth) {
      return reify(this, flattenFactory(this, depth, true));
    },

    fromEntrySeq: function() {
      return new FromEntriesSequence(this);
    },

    get: function(searchKey, notSetValue) {
      return this.find(function(_, key)  {return is(key, searchKey)}, undefined, notSetValue);
    },

    getIn: function(searchKeyPath, notSetValue) {
      var nested = this;
      // Note: in an ES6 environment, we would prefer:
      // for (var key of searchKeyPath) {
      var iter = forceIterator(searchKeyPath);
      var step;
      while (!(step = iter.next()).done) {
        var key = step.value;
        nested = nested && nested.get ? nested.get(key, NOT_SET) : NOT_SET;
        if (nested === NOT_SET) {
          return notSetValue;
        }
      }
      return nested;
    },

    groupBy: function(grouper, context) {
      return groupByFactory(this, grouper, context);
    },

    has: function(searchKey) {
      return this.get(searchKey, NOT_SET) !== NOT_SET;
    },

    hasIn: function(searchKeyPath) {
      return this.getIn(searchKeyPath, NOT_SET) !== NOT_SET;
    },

    isSubset: function(iter) {
      iter = typeof iter.includes === 'function' ? iter : Iterable(iter);
      return this.every(function(value ) {return iter.includes(value)});
    },

    isSuperset: function(iter) {
      iter = typeof iter.isSubset === 'function' ? iter : Iterable(iter);
      return iter.isSubset(this);
    },

    keySeq: function() {
      return this.toSeq().map(keyMapper).toIndexedSeq();
    },

    last: function() {
      return this.toSeq().reverse().first();
    },

    max: function(comparator) {
      return maxFactory(this, comparator);
    },

    maxBy: function(mapper, comparator) {
      return maxFactory(this, comparator, mapper);
    },

    min: function(comparator) {
      return maxFactory(this, comparator ? neg(comparator) : defaultNegComparator);
    },

    minBy: function(mapper, comparator) {
      return maxFactory(this, comparator ? neg(comparator) : defaultNegComparator, mapper);
    },

    rest: function() {
      return this.slice(1);
    },

    skip: function(amount) {
      return this.slice(Math.max(0, amount));
    },

    skipLast: function(amount) {
      return reify(this, this.toSeq().reverse().skip(amount).reverse());
    },

    skipWhile: function(predicate, context) {
      return reify(this, skipWhileFactory(this, predicate, context, true));
    },

    skipUntil: function(predicate, context) {
      return this.skipWhile(not(predicate), context);
    },

    sortBy: function(mapper, comparator) {
      return reify(this, sortFactory(this, comparator, mapper));
    },

    take: function(amount) {
      return this.slice(0, Math.max(0, amount));
    },

    takeLast: function(amount) {
      return reify(this, this.toSeq().reverse().take(amount).reverse());
    },

    takeWhile: function(predicate, context) {
      return reify(this, takeWhileFactory(this, predicate, context));
    },

    takeUntil: function(predicate, context) {
      return this.takeWhile(not(predicate), context);
    },

    valueSeq: function() {
      return this.toIndexedSeq();
    },


    // ### Hashable Object

    hashCode: function() {
      return this.__hash || (this.__hash = hashIterable(this));
    }


    // ### Internal

    // abstract __iterate(fn, reverse)

    // abstract __iterator(type, reverse)
  });

  // var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';
  // var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';
  // var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';
  // var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';

  var IterablePrototype = Iterable.prototype;
  IterablePrototype[IS_ITERABLE_SENTINEL] = true;
  IterablePrototype[ITERATOR_SYMBOL] = IterablePrototype.values;
  IterablePrototype.__toJS = IterablePrototype.toArray;
  IterablePrototype.__toStringMapper = quoteString;
  IterablePrototype.inspect =
  IterablePrototype.toSource = function() { return this.toString(); };
  IterablePrototype.chain = IterablePrototype.flatMap;
  IterablePrototype.contains = IterablePrototype.includes;

  // Temporary warning about using length
  (function () {
    try {
      Object.defineProperty(IterablePrototype, 'length', {
        get: function () {
          if (!Iterable.noLengthWarning) {
            var stack;
            try {
              throw new Error();
            } catch (error) {
              stack = error.stack;
            }
            if (stack.indexOf('_wrapObject') === -1) {
              console && console.warn && console.warn(
                'iterable.length has been deprecated, '+
                'use iterable.size or iterable.count(). '+
                'This warning will become a silent error in a future version. ' +
                stack
              );
              return this.size;
            }
          }
        }
      });
    } catch (e) {}
  })();



  mixin(KeyedIterable, {

    // ### More sequential methods

    flip: function() {
      return reify(this, flipFactory(this));
    },

    findKey: function(predicate, context) {
      var entry = this.findEntry(predicate, context);
      return entry && entry[0];
    },

    findLastKey: function(predicate, context) {
      return this.toSeq().reverse().findKey(predicate, context);
    },

    keyOf: function(searchValue) {
      return this.findKey(function(value ) {return is(value, searchValue)});
    },

    lastKeyOf: function(searchValue) {
      return this.findLastKey(function(value ) {return is(value, searchValue)});
    },

    mapEntries: function(mapper, context) {var this$0 = this;
      var iterations = 0;
      return reify(this,
        this.toSeq().map(
          function(v, k)  {return mapper.call(context, [k, v], iterations++, this$0)}
        ).fromEntrySeq()
      );
    },

    mapKeys: function(mapper, context) {var this$0 = this;
      return reify(this,
        this.toSeq().flip().map(
          function(k, v)  {return mapper.call(context, k, v, this$0)}
        ).flip()
      );
    }

  });

  var KeyedIterablePrototype = KeyedIterable.prototype;
  KeyedIterablePrototype[IS_KEYED_SENTINEL] = true;
  KeyedIterablePrototype[ITERATOR_SYMBOL] = IterablePrototype.entries;
  KeyedIterablePrototype.__toJS = IterablePrototype.toObject;
  KeyedIterablePrototype.__toStringMapper = function(v, k)  {return JSON.stringify(k) + ': ' + quoteString(v)};



  mixin(IndexedIterable, {

    // ### Conversion to other types

    toKeyedSeq: function() {
      return new ToKeyedSequence(this, false);
    },


    // ### ES6 Collection methods (ES6 Array and Map)

    filter: function(predicate, context) {
      return reify(this, filterFactory(this, predicate, context, false));
    },

    findIndex: function(predicate, context) {
      var entry = this.findEntry(predicate, context);
      return entry ? entry[0] : -1;
    },

    indexOf: function(searchValue) {
      var key = this.toKeyedSeq().keyOf(searchValue);
      return key === undefined ? -1 : key;
    },

    lastIndexOf: function(searchValue) {
      var key = this.toKeyedSeq().reverse().keyOf(searchValue);
      return key === undefined ? -1 : key;

      // var index =
      // return this.toSeq().reverse().indexOf(searchValue);
    },

    reverse: function() {
      return reify(this, reverseFactory(this, false));
    },

    slice: function(begin, end) {
      return reify(this, sliceFactory(this, begin, end, false));
    },

    splice: function(index, removeNum /*, ...values*/) {
      var numArgs = arguments.length;
      removeNum = Math.max(removeNum | 0, 0);
      if (numArgs === 0 || (numArgs === 2 && !removeNum)) {
        return this;
      }
      // If index is negative, it should resolve relative to the size of the
      // collection. However size may be expensive to compute if not cached, so
      // only call count() if the number is in fact negative.
      index = resolveBegin(index, index < 0 ? this.count() : this.size);
      var spliced = this.slice(0, index);
      return reify(
        this,
        numArgs === 1 ?
          spliced :
          spliced.concat(arrCopy(arguments, 2), this.slice(index + removeNum))
      );
    },


    // ### More collection methods

    findLastIndex: function(predicate, context) {
      var key = this.toKeyedSeq().findLastKey(predicate, context);
      return key === undefined ? -1 : key;
    },

    first: function() {
      return this.get(0);
    },

    flatten: function(depth) {
      return reify(this, flattenFactory(this, depth, false));
    },

    get: function(index, notSetValue) {
      index = wrapIndex(this, index);
      return (index < 0 || (this.size === Infinity ||
          (this.size !== undefined && index > this.size))) ?
        notSetValue :
        this.find(function(_, key)  {return key === index}, undefined, notSetValue);
    },

    has: function(index) {
      index = wrapIndex(this, index);
      return index >= 0 && (this.size !== undefined ?
        this.size === Infinity || index < this.size :
        this.indexOf(index) !== -1
      );
    },

    interpose: function(separator) {
      return reify(this, interposeFactory(this, separator));
    },

    interleave: function(/*...iterables*/) {
      var iterables = [this].concat(arrCopy(arguments));
      var zipped = zipWithFactory(this.toSeq(), IndexedSeq.of, iterables);
      var interleaved = zipped.flatten(true);
      if (zipped.size) {
        interleaved.size = zipped.size * iterables.length;
      }
      return reify(this, interleaved);
    },

    last: function() {
      return this.get(-1);
    },

    skipWhile: function(predicate, context) {
      return reify(this, skipWhileFactory(this, predicate, context, false));
    },

    zip: function(/*, ...iterables */) {
      var iterables = [this].concat(arrCopy(arguments));
      return reify(this, zipWithFactory(this, defaultZipper, iterables));
    },

    zipWith: function(zipper/*, ...iterables */) {
      var iterables = arrCopy(arguments);
      iterables[0] = this;
      return reify(this, zipWithFactory(this, zipper, iterables));
    }

  });

  IndexedIterable.prototype[IS_INDEXED_SENTINEL] = true;
  IndexedIterable.prototype[IS_ORDERED_SENTINEL] = true;



  mixin(SetIterable, {

    // ### ES6 Collection methods (ES6 Array and Map)

    get: function(value, notSetValue) {
      return this.has(value) ? value : notSetValue;
    },

    includes: function(value) {
      return this.has(value);
    },


    // ### More sequential methods

    keySeq: function() {
      return this.valueSeq();
    }

  });

  SetIterable.prototype.has = IterablePrototype.includes;


  // Mixin subclasses

  mixin(KeyedSeq, KeyedIterable.prototype);
  mixin(IndexedSeq, IndexedIterable.prototype);
  mixin(SetSeq, SetIterable.prototype);

  mixin(KeyedCollection, KeyedIterable.prototype);
  mixin(IndexedCollection, IndexedIterable.prototype);
  mixin(SetCollection, SetIterable.prototype);


  // #pragma Helper functions

  function keyMapper(v, k) {
    return k;
  }

  function entryMapper(v, k) {
    return [k, v];
  }

  function not(predicate) {
    return function() {
      return !predicate.apply(this, arguments);
    }
  }

  function neg(predicate) {
    return function() {
      return -predicate.apply(this, arguments);
    }
  }

  function quoteString(value) {
    return typeof value === 'string' ? JSON.stringify(value) : value;
  }

  function defaultZipper() {
    return arrCopy(arguments);
  }

  function defaultNegComparator(a, b) {
    return a < b ? 1 : a > b ? -1 : 0;
  }

  function hashIterable(iterable) {
    if (iterable.size === Infinity) {
      return 0;
    }
    var ordered = isOrdered(iterable);
    var keyed = isKeyed(iterable);
    var h = ordered ? 1 : 0;
    var size = iterable.__iterate(
      keyed ?
        ordered ?
          function(v, k)  { h = 31 * h + hashMerge(hash(v), hash(k)) | 0; } :
          function(v, k)  { h = h + hashMerge(hash(v), hash(k)) | 0; } :
        ordered ?
          function(v ) { h = 31 * h + hash(v) | 0; } :
          function(v ) { h = h + hash(v) | 0; }
    );
    return murmurHashOfSize(size, h);
  }

  function murmurHashOfSize(size, h) {
    h = imul(h, 0xCC9E2D51);
    h = imul(h << 15 | h >>> -15, 0x1B873593);
    h = imul(h << 13 | h >>> -13, 5);
    h = (h + 0xE6546B64 | 0) ^ size;
    h = imul(h ^ h >>> 16, 0x85EBCA6B);
    h = imul(h ^ h >>> 13, 0xC2B2AE35);
    h = smi(h ^ h >>> 16);
    return h;
  }

  function hashMerge(a, b) {
    return a ^ b + 0x9E3779B9 + (a << 6) + (a >> 2) | 0; // int
  }

  var Immutable = {

    Iterable: Iterable,

    Seq: Seq,
    Collection: Collection,
    Map: Map,
    OrderedMap: OrderedMap,
    List: List,
    Stack: Stack,
    Set: Set,
    OrderedSet: OrderedSet,

    Record: Record,
    Range: Range,
    Repeat: Repeat,

    is: is,
    fromJS: fromJS

  };

  return Immutable;

}));
});

var OrderedMap = immutable.OrderedMap;


var BlockMapBuilder = {
  createFromArray: function createFromArray(blocks) {
    return OrderedMap(blocks.map(function (block) {
      return [block.getKey(), block];
    }));
  }
};

var BlockMapBuilder_1 = BlockMapBuilder;

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var Map$1 = immutable.Map,
    OrderedSet = immutable.OrderedSet,
    Record = immutable.Record;

// Immutable.map is typed such that the value for every key in the map
// must be the same type


var EMPTY_SET = OrderedSet();

var defaultRecord = {
  style: EMPTY_SET,
  entity: null
};

var CharacterMetadataRecord = Record(defaultRecord);

var CharacterMetadata = function (_CharacterMetadataRec) {
  _inherits(CharacterMetadata, _CharacterMetadataRec);

  function CharacterMetadata() {
    _classCallCheck(this, CharacterMetadata);

    return _possibleConstructorReturn(this, _CharacterMetadataRec.apply(this, arguments));
  }

  CharacterMetadata.prototype.getStyle = function getStyle() {
    return this.get('style');
  };

  CharacterMetadata.prototype.getEntity = function getEntity() {
    return this.get('entity');
  };

  CharacterMetadata.prototype.hasStyle = function hasStyle(style) {
    return this.getStyle().includes(style);
  };

  CharacterMetadata.applyStyle = function applyStyle(record, style) {
    var withStyle = record.set('style', record.getStyle().add(style));
    return CharacterMetadata.create(withStyle);
  };

  CharacterMetadata.removeStyle = function removeStyle(record, style) {
    var withoutStyle = record.set('style', record.getStyle().remove(style));
    return CharacterMetadata.create(withoutStyle);
  };

  CharacterMetadata.applyEntity = function applyEntity(record, entityKey) {
    var withEntity = record.getEntity() === entityKey ? record : record.set('entity', entityKey);
    return CharacterMetadata.create(withEntity);
  };

  /**
   * Use this function instead of the `CharacterMetadata` constructor.
   * Since most content generally uses only a very small number of
   * style/entity permutations, we can reuse these objects as often as
   * possible.
   */


  CharacterMetadata.create = function create(config) {
    if (!config) {
      return EMPTY;
    }

    var defaultConfig = {
      style: EMPTY_SET,
      entity: null
    };

    // Fill in unspecified properties, if necessary.
    var configMap = Map$1(defaultConfig).merge(config);

    var existing = pool.get(configMap);
    if (existing) {
      return existing;
    }

    var newCharacter = new CharacterMetadata(configMap);
    pool = pool.set(configMap, newCharacter);
    return newCharacter;
  };

  return CharacterMetadata;
}(CharacterMetadataRecord);

var EMPTY = new CharacterMetadata();
var pool = Map$1([[Map$1(defaultRecord), EMPTY]]);

CharacterMetadata.EMPTY = EMPTY;

var CharacterMetadata_1 = CharacterMetadata;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule findRangesImmutable
 * @format
 * 
 */

/**
 * Search through an array to find contiguous stretches of elements that
 * match a specified filter function.
 *
 * When ranges are found, execute a specified `found` function to supply
 * the values to the caller.
 */
function findRangesImmutable(haystack, areEqualFn, filterFn, foundFn) {
  if (!haystack.size) {
    return;
  }

  var cursor = 0;

  haystack.reduce(function (value, nextValue, nextIndex) {
    if (!areEqualFn(value, nextValue)) {
      if (filterFn(value)) {
        foundFn(cursor, nextIndex);
      }
      cursor = nextIndex;
    }
    return nextValue;
  });

  filterFn(haystack.last()) && foundFn(cursor, haystack.count());
}

var findRangesImmutable_1 = findRangesImmutable;

function _classCallCheck$1(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn$1(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits$1(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }






var List = immutable.List,
    Map$2 = immutable.Map,
    OrderedSet$1 = immutable.OrderedSet,
    Record$1 = immutable.Record,
    Repeat = immutable.Repeat;


var EMPTY_SET$1 = OrderedSet$1();

var defaultRecord$1 = {
  key: '',
  type: 'unstyled',
  text: '',
  characterList: List(),
  depth: 0,
  data: Map$2()
};

var ContentBlockRecord = Record$1(defaultRecord$1);

var decorateCharacterList = function decorateCharacterList(config) {
  if (!config) {
    return config;
  }

  var characterList = config.characterList,
      text = config.text;


  if (text && !characterList) {
    config.characterList = List(Repeat(CharacterMetadata_1.EMPTY, text.length));
  }

  return config;
};

var ContentBlock = function (_ContentBlockRecord) {
  _inherits$1(ContentBlock, _ContentBlockRecord);

  function ContentBlock(config) {
    _classCallCheck$1(this, ContentBlock);

    return _possibleConstructorReturn$1(this, _ContentBlockRecord.call(this, decorateCharacterList(config)));
  }

  ContentBlock.prototype.getKey = function getKey() {
    return this.get('key');
  };

  ContentBlock.prototype.getType = function getType() {
    return this.get('type');
  };

  ContentBlock.prototype.getText = function getText() {
    return this.get('text');
  };

  ContentBlock.prototype.getCharacterList = function getCharacterList() {
    return this.get('characterList');
  };

  ContentBlock.prototype.getLength = function getLength() {
    return this.getText().length;
  };

  ContentBlock.prototype.getDepth = function getDepth() {
    return this.get('depth');
  };

  ContentBlock.prototype.getData = function getData() {
    return this.get('data');
  };

  ContentBlock.prototype.getInlineStyleAt = function getInlineStyleAt(offset) {
    var character = this.getCharacterList().get(offset);
    return character ? character.getStyle() : EMPTY_SET$1;
  };

  ContentBlock.prototype.getEntityAt = function getEntityAt(offset) {
    var character = this.getCharacterList().get(offset);
    return character ? character.getEntity() : null;
  };

  /**
   * Execute a callback for every contiguous range of styles within the block.
   */


  ContentBlock.prototype.findStyleRanges = function findStyleRanges(filterFn, callback) {
    findRangesImmutable_1(this.getCharacterList(), haveEqualStyle, filterFn, callback);
  };

  /**
   * Execute a callback for every contiguous range of entities within the block.
   */


  ContentBlock.prototype.findEntityRanges = function findEntityRanges(filterFn, callback) {
    findRangesImmutable_1(this.getCharacterList(), haveEqualEntity, filterFn, callback);
  };

  return ContentBlock;
}(ContentBlockRecord);

function haveEqualStyle(charA, charB) {
  return charA.getStyle() === charB.getStyle();
}

function haveEqualEntity(charA, charB) {
  return charA.getEntity() === charB.getEntity();
}

var ContentBlock_1 = ContentBlock;

function _classCallCheck$2(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn$2(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits$2(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }






var List$1 = immutable.List,
    Map$3 = immutable.Map,
    OrderedSet$2 = immutable.OrderedSet,
    Record$2 = immutable.Record,
    Repeat$1 = immutable.Repeat;


var EMPTY_SET$2 = OrderedSet$2();

var defaultRecord$2 = {
  parent: null,
  characterList: List$1(),
  data: Map$3(),
  depth: 0,
  key: '',
  text: '',
  type: 'unstyled',
  children: List$1(),
  prevSibling: null,
  nextSibling: null
};

var haveEqualStyle$1 = function haveEqualStyle(charA, charB) {
  return charA.getStyle() === charB.getStyle();
};

var haveEqualEntity$1 = function haveEqualEntity(charA, charB) {
  return charA.getEntity() === charB.getEntity();
};

var decorateCharacterList$1 = function decorateCharacterList(config) {
  if (!config) {
    return config;
  }

  var characterList = config.characterList,
      text = config.text;


  if (text && !characterList) {
    config.characterList = List$1(Repeat$1(CharacterMetadata_1.EMPTY, text.length));
  }

  return config;
};

var ContentBlockNode = function (_Record) {
  _inherits$2(ContentBlockNode, _Record);

  function ContentBlockNode() {
    var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : defaultRecord$2;

    _classCallCheck$2(this, ContentBlockNode);

    return _possibleConstructorReturn$2(this, _Record.call(this, decorateCharacterList$1(props)));
  }

  ContentBlockNode.prototype.getKey = function getKey() {
    return this.get('key');
  };

  ContentBlockNode.prototype.getType = function getType() {
    return this.get('type');
  };

  ContentBlockNode.prototype.getText = function getText() {
    return this.get('text');
  };

  ContentBlockNode.prototype.getCharacterList = function getCharacterList() {
    return this.get('characterList');
  };

  ContentBlockNode.prototype.getLength = function getLength() {
    return this.getText().length;
  };

  ContentBlockNode.prototype.getDepth = function getDepth() {
    return this.get('depth');
  };

  ContentBlockNode.prototype.getData = function getData() {
    return this.get('data');
  };

  ContentBlockNode.prototype.getInlineStyleAt = function getInlineStyleAt(offset) {
    var character = this.getCharacterList().get(offset);
    return character ? character.getStyle() : EMPTY_SET$2;
  };

  ContentBlockNode.prototype.getEntityAt = function getEntityAt(offset) {
    var character = this.getCharacterList().get(offset);
    return character ? character.getEntity() : null;
  };

  ContentBlockNode.prototype.getChildKeys = function getChildKeys() {
    return this.get('children');
  };

  ContentBlockNode.prototype.getParentKey = function getParentKey() {
    return this.get('parent');
  };

  ContentBlockNode.prototype.getPrevSiblingKey = function getPrevSiblingKey() {
    return this.get('prevSibling');
  };

  ContentBlockNode.prototype.getNextSiblingKey = function getNextSiblingKey() {
    return this.get('nextSibling');
  };

  ContentBlockNode.prototype.findStyleRanges = function findStyleRanges(filterFn, callback) {
    findRangesImmutable_1(this.getCharacterList(), haveEqualStyle$1, filterFn, callback);
  };

  ContentBlockNode.prototype.findEntityRanges = function findEntityRanges(filterFn, callback) {
    findRangesImmutable_1(this.getCharacterList(), haveEqualEntity$1, filterFn, callback);
  };

  return ContentBlockNode;
}(Record$2(defaultRecord$2));

var ContentBlockNode_1 = ContentBlockNode;

/**
 * Copyright 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule DraftFeatureFlags-core
 * @format
 * 
 */

var DraftFeatureFlags = {
  draft_killswitch_allow_nontextnodes: false,
  draft_segmented_entities_behavior: false,
  draft_handlebeforeinput_composed_text: false,
  draft_tree_data_support: false
};

var DraftFeatureFlagsCore = DraftFeatureFlags;

var DraftFeatureFlags_1 = DraftFeatureFlagsCore;

var Map$4 = immutable.Map;

var ContentStateInlineStyle = {
  add: function add(contentState, selectionState, inlineStyle) {
    return modifyInlineStyle(contentState, selectionState, inlineStyle, true);
  },

  remove: function remove(contentState, selectionState, inlineStyle) {
    return modifyInlineStyle(contentState, selectionState, inlineStyle, false);
  }
};

function modifyInlineStyle(contentState, selectionState, inlineStyle, addOrRemove) {
  var blockMap = contentState.getBlockMap();
  var startKey = selectionState.getStartKey();
  var startOffset = selectionState.getStartOffset();
  var endKey = selectionState.getEndKey();
  var endOffset = selectionState.getEndOffset();

  var newBlocks = blockMap.skipUntil(function (_, k) {
    return k === startKey;
  }).takeUntil(function (_, k) {
    return k === endKey;
  }).concat(Map$4([[endKey, blockMap.get(endKey)]])).map(function (block, blockKey) {
    var sliceStart;
    var sliceEnd;

    if (startKey === endKey) {
      sliceStart = startOffset;
      sliceEnd = endOffset;
    } else {
      sliceStart = blockKey === startKey ? startOffset : 0;
      sliceEnd = blockKey === endKey ? endOffset : block.getLength();
    }

    var chars = block.getCharacterList();
    var current;
    while (sliceStart < sliceEnd) {
      current = chars.get(sliceStart);
      chars = chars.set(sliceStart, addOrRemove ? CharacterMetadata_1.applyStyle(current, inlineStyle) : CharacterMetadata_1.removeStyle(current, inlineStyle));
      sliceStart++;
    }

    return block.set('characterList', chars);
  });

  return contentState.merge({
    blockMap: blockMap.merge(newBlocks),
    selectionBefore: selectionState,
    selectionAfter: selectionState
  });
}

var ContentStateInlineStyle_1 = ContentStateInlineStyle;

function applyEntityToContentBlock(contentBlock, start, end, entityKey) {
  var characterList = contentBlock.getCharacterList();
  while (start < end) {
    characterList = characterList.set(start, CharacterMetadata_1.applyEntity(characterList.get(start), entityKey));
    start++;
  }
  return contentBlock.set('characterList', characterList);
}

var applyEntityToContentBlock_1 = applyEntityToContentBlock;

function applyEntityToContentState(contentState, selectionState, entityKey) {
  var blockMap = contentState.getBlockMap();
  var startKey = selectionState.getStartKey();
  var startOffset = selectionState.getStartOffset();
  var endKey = selectionState.getEndKey();
  var endOffset = selectionState.getEndOffset();

  var newBlocks = blockMap.skipUntil(function (_, k) {
    return k === startKey;
  }).takeUntil(function (_, k) {
    return k === endKey;
  }).toOrderedMap().merge(immutable.OrderedMap([[endKey, blockMap.get(endKey)]])).map(function (block, blockKey) {
    var sliceStart = blockKey === startKey ? startOffset : 0;
    var sliceEnd = blockKey === endKey ? endOffset : block.getLength();
    return applyEntityToContentBlock_1(block, sliceStart, sliceEnd, entityKey);
  });

  return contentState.merge({
    blockMap: blockMap.merge(newBlocks),
    selectionBefore: selectionState,
    selectionAfter: selectionState
  });
}

var applyEntityToContentState_1 = applyEntityToContentState;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule DraftEntitySegments
 * @format
 * 
 */

/**
 * Identify the range to delete from a segmented entity.
 *
 * Rules:
 *
 *  Example: 'John F. Kennedy'
 *
 *   - Deletion from within any non-whitespace (i.e. ['John', 'F.', 'Kennedy'])
 *     will return the range of that text.
 *
 *       'John F. Kennedy' -> 'John F.'
 *                  ^
 *
 *   - Forward deletion of whitespace will remove the following section:
 *
 *       'John F. Kennedy' -> 'John Kennedy'
 *            ^
 *
 *   - Backward deletion of whitespace will remove the previous section:
 *
 *       'John F. Kennedy' -> 'F. Kennedy'
 *            ^
 */
var DraftEntitySegments = {
  getRemovalRange: function getRemovalRange(selectionStart, selectionEnd, text, entityStart, direction) {
    var segments = text.split(' ');
    segments = segments.map(function ( /*string*/segment, /*number*/ii) {
      if (direction === 'forward') {
        if (ii > 0) {
          return ' ' + segment;
        }
      } else if (ii < segments.length - 1) {
        return segment + ' ';
      }
      return segment;
    });

    var segmentStart = entityStart;
    var segmentEnd;
    var segment;
    var removalStart = null;
    var removalEnd = null;

    for (var jj = 0; jj < segments.length; jj++) {
      segment = segments[jj];
      segmentEnd = segmentStart + segment.length;

      // Our selection overlaps this segment.
      if (selectionStart < segmentEnd && segmentStart < selectionEnd) {
        if (removalStart !== null) {
          removalEnd = segmentEnd;
        } else {
          removalStart = segmentStart;
          removalEnd = segmentEnd;
        }
      } else if (removalStart !== null) {
        break;
      }

      segmentStart = segmentEnd;
    }

    var entityEnd = entityStart + text.length;
    var atStart = removalStart === entityStart;
    var atEnd = removalEnd === entityEnd;

    if (!atStart && atEnd || atStart && !atEnd) {
      if (direction === 'forward') {
        if (removalEnd !== entityEnd) {
          removalEnd++;
        }
      } else if (removalStart !== entityStart) {
        removalStart--;
      }
    }

    return {
      start: removalStart,
      end: removalEnd
    };
  }
};

var DraftEntitySegments_1 = DraftEntitySegments;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */

/**
 * Use invariant() to assert state which your program assumes to be true.
 *
 * Provide sprintf-style format (only %s is supported) and arguments
 * to provide information about what broke and what you were
 * expecting.
 *
 * The invariant message will be stripped in production, but the invariant
 * will remain to ensure logic does not differ in production.
 */

var validateFormat = function validateFormat(format) {};

if (process.env.NODE_ENV !== 'production') {
  validateFormat = function validateFormat(format) {
    if (format === undefined) {
      throw new Error('invariant requires an error message argument');
    }
  };
}

function invariant(condition, format, a, b, c, d, e, f) {
  validateFormat(format);

  if (!condition) {
    var error;
    if (format === undefined) {
      error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');
    } else {
      var args = [a, b, c, d, e, f];
      var argIndex = 0;
      error = new Error(format.replace(/%s/g, function () {
        return args[argIndex++];
      }));
      error.name = 'Invariant Violation';
    }

    error.framesToPop = 1; // we don't care about invariant's own frame
    throw error;
  }
}

var invariant_1 = invariant;

/**
 * Obtain the start and end positions of the range that has the
 * specified entity applied to it.
 *
 * Entity keys are applied only to contiguous stretches of text, so this
 * method searches for the first instance of the entity key and returns
 * the subsequent range.
 */
function getRangesForDraftEntity(block, key) {
  var ranges = [];
  block.findEntityRanges(function (c) {
    return c.getEntity() === key;
  }, function (start, end) {
    ranges.push({ start: start, end: end });
  });

  !!!ranges.length ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Entity key not found in this range.') : invariant_1(false) : void 0;

  return ranges;
}

var getRangesForDraftEntity_1 = getRangesForDraftEntity;

/**
 * Given a SelectionState and a removal direction, determine the entire range
 * that should be removed from a ContentState. This is based on any entities
 * within the target, with their `mutability` values taken into account.
 *
 * For instance, if we are attempting to remove part of an "immutable" entity
 * range, the entire entity must be removed. The returned `SelectionState`
 * will be adjusted accordingly.
 */
function getCharacterRemovalRange(entityMap, startBlock, endBlock, selectionState, direction) {
  var start = selectionState.getStartOffset();
  var end = selectionState.getEndOffset();
  var startEntityKey = startBlock.getEntityAt(start);
  var endEntityKey = endBlock.getEntityAt(end - 1);
  if (!startEntityKey && !endEntityKey) {
    return selectionState;
  }
  var newSelectionState = selectionState;
  if (startEntityKey && startEntityKey === endEntityKey) {
    newSelectionState = getEntityRemovalRange(entityMap, startBlock, newSelectionState, direction, startEntityKey, true, true);
  } else if (startEntityKey && endEntityKey) {
    var startSelectionState = getEntityRemovalRange(entityMap, startBlock, newSelectionState, direction, startEntityKey, false, true);
    var endSelectionState = getEntityRemovalRange(entityMap, endBlock, newSelectionState, direction, endEntityKey, false, false);
    newSelectionState = newSelectionState.merge({
      anchorOffset: startSelectionState.getAnchorOffset(),
      focusOffset: endSelectionState.getFocusOffset(),
      isBackward: false
    });
  } else if (startEntityKey) {
    var _startSelectionState = getEntityRemovalRange(entityMap, startBlock, newSelectionState, direction, startEntityKey, false, true);
    newSelectionState = newSelectionState.merge({
      anchorOffset: _startSelectionState.getStartOffset(),
      isBackward: false
    });
  } else if (endEntityKey) {
    var _endSelectionState = getEntityRemovalRange(entityMap, endBlock, newSelectionState, direction, endEntityKey, false, false);
    newSelectionState = newSelectionState.merge({
      focusOffset: _endSelectionState.getEndOffset(),
      isBackward: false
    });
  }
  return newSelectionState;
}

function getEntityRemovalRange(entityMap, block, selectionState, direction, entityKey, isEntireSelectionWithinEntity, isEntityAtStart) {
  var start = selectionState.getStartOffset();
  var end = selectionState.getEndOffset();
  var entity = entityMap.__get(entityKey);
  var mutability = entity.getMutability();
  var sideToConsider = isEntityAtStart ? start : end;

  // `MUTABLE` entities can just have the specified range of text removed
  // directly. No adjustments are needed.
  if (mutability === 'MUTABLE') {
    return selectionState;
  }

  // Find the entity range that overlaps with our removal range.
  var entityRanges = getRangesForDraftEntity_1(block, entityKey).filter(function (range) {
    return sideToConsider <= range.end && sideToConsider >= range.start;
  });

  !(entityRanges.length == 1) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'There should only be one entity range within this removal range.') : invariant_1(false) : void 0;

  var entityRange = entityRanges[0];

  // For `IMMUTABLE` entity types, we will remove the entire entity range.
  if (mutability === 'IMMUTABLE') {
    return selectionState.merge({
      anchorOffset: entityRange.start,
      focusOffset: entityRange.end,
      isBackward: false
    });
  }

  // For `SEGMENTED` entity types, determine the appropriate segment to
  // remove.
  if (!isEntireSelectionWithinEntity) {
    if (isEntityAtStart) {
      end = entityRange.end;
    } else {
      start = entityRange.start;
    }
  }

  var removalRange = DraftEntitySegments_1.getRemovalRange(start, end, block.getText().slice(entityRange.start, entityRange.end), entityRange.start, direction);

  return selectionState.merge({
    anchorOffset: removalRange.start,
    focusOffset: removalRange.end,
    isBackward: false
  });
}

var getCharacterRemovalRange_1 = getCharacterRemovalRange;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule generateRandomKey
 * @format
 * 
 */

var seenKeys = {};
var MULTIPLIER = Math.pow(2, 24);

function generateRandomKey() {
  var key = void 0;
  while (key === undefined || seenKeys.hasOwnProperty(key) || !isNaN(+key)) {
    key = Math.floor(Math.random() * MULTIPLIER).toString(32);
  }
  seenKeys[key] = true;
  return key;
}

var generateRandomKey_1 = generateRandomKey;

var OrderedMap$1 = immutable.OrderedMap;


var randomizeContentBlockNodeKeys = function randomizeContentBlockNodeKeys(blockMap) {
  var newKeysRef = {};

  // we keep track of root blocks in order to update subsequent sibling links
  var lastRootBlock = void 0;

  return OrderedMap$1(blockMap.withMutations(function (blockMapState) {
    blockMapState.forEach(function (block, index) {
      var oldKey = block.getKey();
      var nextKey = block.getNextSiblingKey();
      var prevKey = block.getPrevSiblingKey();
      var childrenKeys = block.getChildKeys();
      var parentKey = block.getParentKey();

      // new key that we will use to build linking
      var key = generateRandomKey_1();

      // we will add it here to re-use it later
      newKeysRef[oldKey] = key;

      if (nextKey) {
        var nextBlock = blockMapState.get(nextKey);
        if (nextBlock) {
          blockMapState.setIn([nextKey, 'prevSibling'], key);
        } else {
          // this can happen when generating random keys for fragments
          blockMapState.setIn([oldKey, 'nextSibling'], null);
        }
      }

      if (prevKey) {
        var prevBlock = blockMapState.get(prevKey);
        if (prevBlock) {
          blockMapState.setIn([prevKey, 'nextSibling'], key);
        } else {
          // this can happen when generating random keys for fragments
          blockMapState.setIn([oldKey, 'prevSibling'], null);
        }
      }

      if (parentKey && blockMapState.get(parentKey)) {
        var parentBlock = blockMapState.get(parentKey);
        var parentChildrenList = parentBlock.getChildKeys();
        blockMapState.setIn([parentKey, 'children'], parentChildrenList.set(parentChildrenList.indexOf(block.getKey()), key));
      } else {
        // blocks will then be treated as root block nodes
        blockMapState.setIn([oldKey, 'parent'], null);

        if (lastRootBlock) {
          blockMapState.setIn([lastRootBlock.getKey(), 'nextSibling'], key);
          blockMapState.setIn([oldKey, 'prevSibling'], newKeysRef[lastRootBlock.getKey()]);
        }

        lastRootBlock = blockMapState.get(oldKey);
      }

      childrenKeys.forEach(function (childKey) {
        var childBlock = blockMapState.get(childKey);
        if (childBlock) {
          blockMapState.setIn([childKey, 'parent'], key);
        } else {
          blockMapState.setIn([oldKey, 'children'], block.getChildKeys().filter(function (child) {
            return child !== childKey;
          }));
        }
      });
    });
  }).toArray().map(function (block) {
    return [newKeysRef[block.getKey()], block.set('key', newKeysRef[block.getKey()])];
  }));
};

var randomizeContentBlockKeys = function randomizeContentBlockKeys(blockMap) {
  return OrderedMap$1(blockMap.toArray().map(function (block) {
    var key = generateRandomKey_1();
    return [key, block.set('key', key)];
  }));
};

var randomizeBlockMapKeys = function randomizeBlockMapKeys(blockMap) {
  var isTreeBasedBlockMap = blockMap.first() instanceof ContentBlockNode_1;

  if (!isTreeBasedBlockMap) {
    return randomizeContentBlockKeys(blockMap);
  }

  return randomizeContentBlockNodeKeys(blockMap);
};

var randomizeBlockMapKeys_1 = randomizeBlockMapKeys;

function removeEntitiesAtEdges(contentState, selectionState) {
  var blockMap = contentState.getBlockMap();
  var entityMap = contentState.getEntityMap();

  var updatedBlocks = {};

  var startKey = selectionState.getStartKey();
  var startOffset = selectionState.getStartOffset();
  var startBlock = blockMap.get(startKey);
  var updatedStart = removeForBlock(entityMap, startBlock, startOffset);

  if (updatedStart !== startBlock) {
    updatedBlocks[startKey] = updatedStart;
  }

  var endKey = selectionState.getEndKey();
  var endOffset = selectionState.getEndOffset();
  var endBlock = blockMap.get(endKey);
  if (startKey === endKey) {
    endBlock = updatedStart;
  }

  var updatedEnd = removeForBlock(entityMap, endBlock, endOffset);

  if (updatedEnd !== endBlock) {
    updatedBlocks[endKey] = updatedEnd;
  }

  if (!Object.keys(updatedBlocks).length) {
    return contentState.set('selectionAfter', selectionState);
  }

  return contentState.merge({
    blockMap: blockMap.merge(updatedBlocks),
    selectionAfter: selectionState
  });
}

function getRemovalRange(characters, key, offset) {
  var removalRange;
  findRangesImmutable_1(characters, function (a, b) {
    return a.getEntity() === b.getEntity();
  }, function (element) {
    return element.getEntity() === key;
  }, function (start, end) {
    if (start <= offset && end >= offset) {
      removalRange = { start: start, end: end };
    }
  });
  !(typeof removalRange === 'object') ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Removal range must exist within character list.') : invariant_1(false) : void 0;
  return removalRange;
}

function removeForBlock(entityMap, block, offset) {
  var chars = block.getCharacterList();
  var charBefore = offset > 0 ? chars.get(offset - 1) : undefined;
  var charAfter = offset < chars.count() ? chars.get(offset) : undefined;
  var entityBeforeCursor = charBefore ? charBefore.getEntity() : undefined;
  var entityAfterCursor = charAfter ? charAfter.getEntity() : undefined;

  if (entityAfterCursor && entityAfterCursor === entityBeforeCursor) {
    var entity = entityMap.__get(entityAfterCursor);
    if (entity.getMutability() !== 'MUTABLE') {
      var _getRemovalRange = getRemovalRange(chars, entityAfterCursor, offset),
          start = _getRemovalRange.start,
          end = _getRemovalRange.end;

      var current;
      while (start < end) {
        current = chars.get(start);
        chars = chars.set(start, CharacterMetadata_1.applyEntity(current, null));
        start++;
      }
      return block.set('characterList', chars);
    }
  }

  return block;
}

var removeEntitiesAtEdges_1 = removeEntitiesAtEdges;

var getContentStateFragment = function getContentStateFragment(contentState, selectionState) {
  var startKey = selectionState.getStartKey();
  var startOffset = selectionState.getStartOffset();
  var endKey = selectionState.getEndKey();
  var endOffset = selectionState.getEndOffset();

  // Edge entities should be stripped to ensure that we don't preserve
  // invalid partial entities when the fragment is reused. We do, however,
  // preserve entities that are entirely within the selection range.
  var contentWithoutEdgeEntities = removeEntitiesAtEdges_1(contentState, selectionState);

  var blockMap = contentWithoutEdgeEntities.getBlockMap();
  var blockKeys = blockMap.keySeq();
  var startIndex = blockKeys.indexOf(startKey);
  var endIndex = blockKeys.indexOf(endKey) + 1;

  return randomizeBlockMapKeys_1(blockMap.slice(startIndex, endIndex).map(function (block, blockKey) {
    var text = block.getText();
    var chars = block.getCharacterList();

    if (startKey === endKey) {
      return block.merge({
        text: text.slice(startOffset, endOffset),
        characterList: chars.slice(startOffset, endOffset)
      });
    }

    if (blockKey === startKey) {
      return block.merge({
        text: text.slice(startOffset),
        characterList: chars.slice(startOffset)
      });
    }

    if (blockKey === endKey) {
      return block.merge({
        text: text.slice(0, endOffset),
        characterList: chars.slice(0, endOffset)
      });
    }

    return block;
  }));
};

var getContentStateFragment_1 = getContentStateFragment;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule insertIntoList
 * @format
 * 
 */

/**
 * Maintain persistence for target list when appending and prepending.
 */
function insertIntoList(targetList, toInsert, offset) {
  if (offset === targetList.count()) {
    toInsert.forEach(function (c) {
      targetList = targetList.push(c);
    });
  } else if (offset === 0) {
    toInsert.reverse().forEach(function (c) {
      targetList = targetList.unshift(c);
    });
  } else {
    var head = targetList.slice(0, offset);
    var tail = targetList.slice(offset);
    targetList = head.concat(toInsert, tail).toList();
  }
  return targetList;
}

var insertIntoList_1 = insertIntoList;

var List$2 = immutable.List;


var updateExistingBlock = function updateExistingBlock(contentState, selectionState, blockMap, fragmentBlock, targetKey, targetOffset) {
  var targetBlock = blockMap.get(targetKey);
  var text = targetBlock.getText();
  var chars = targetBlock.getCharacterList();
  var finalKey = targetKey;
  var finalOffset = targetOffset + fragmentBlock.getText().length;

  var newBlock = targetBlock.merge({
    text: text.slice(0, targetOffset) + fragmentBlock.getText() + text.slice(targetOffset),
    characterList: insertIntoList_1(chars, fragmentBlock.getCharacterList(), targetOffset),
    data: fragmentBlock.getData()
  });

  return contentState.merge({
    blockMap: blockMap.set(targetKey, newBlock),
    selectionBefore: selectionState,
    selectionAfter: selectionState.merge({
      anchorKey: finalKey,
      anchorOffset: finalOffset,
      focusKey: finalKey,
      focusOffset: finalOffset,
      isBackward: false
    })
  });
};

/**
 * Appends text/characterList from the fragment first block to
 * target block.
 */
var updateHead = function updateHead(block, targetOffset, fragment) {
  var text = block.getText();
  var chars = block.getCharacterList();

  // Modify head portion of block.
  var headText = text.slice(0, targetOffset);
  var headCharacters = chars.slice(0, targetOffset);
  var appendToHead = fragment.first();

  return block.merge({
    text: headText + appendToHead.getText(),
    characterList: headCharacters.concat(appendToHead.getCharacterList()),
    type: headText ? block.getType() : appendToHead.getType(),
    data: appendToHead.getData()
  });
};

/**
 * Appends offset text/characterList from the target block to the last
 * fragment block.
 */
var updateTail = function updateTail(block, targetOffset, fragment) {
  // Modify tail portion of block.
  var text = block.getText();
  var chars = block.getCharacterList();

  // Modify head portion of block.
  var blockSize = text.length;
  var tailText = text.slice(targetOffset, blockSize);
  var tailCharacters = chars.slice(targetOffset, blockSize);
  var prependToTail = fragment.last();

  return prependToTail.merge({
    text: prependToTail.getText() + tailText,
    characterList: prependToTail.getCharacterList().concat(tailCharacters),
    data: prependToTail.getData()
  });
};

var getRootBlocks = function getRootBlocks(block, blockMap) {
  var headKey = block.getKey();
  var rootBlock = block;
  var rootBlocks = [];

  // sometimes the fragment head block will not be part of the blockMap itself this can happen when
  // the fragment head is used to update the target block, however when this does not happen we need
  // to make sure that we include it on the rootBlocks since the first block of a fragment is always a
  // fragment root block
  if (blockMap.get(headKey)) {
    rootBlocks.push(headKey);
  }

  while (rootBlock && rootBlock.getNextSiblingKey()) {
    var lastSiblingKey = rootBlock.getNextSiblingKey();

    if (!lastSiblingKey) {
      break;
    }

    rootBlocks.push(lastSiblingKey);
    rootBlock = blockMap.get(lastSiblingKey);
  }

  return rootBlocks;
};

var updateBlockMapLinks = function updateBlockMapLinks(blockMap, originalBlockMap, targetBlock, fragmentHeadBlock) {
  return blockMap.withMutations(function (blockMapState) {
    var targetKey = targetBlock.getKey();
    var headKey = fragmentHeadBlock.getKey();
    var targetNextKey = targetBlock.getNextSiblingKey();
    var targetParentKey = targetBlock.getParentKey();
    var fragmentRootBlocks = getRootBlocks(fragmentHeadBlock, blockMap);
    var lastRootFragmentBlockKey = fragmentRootBlocks[fragmentRootBlocks.length - 1];

    if (blockMapState.get(headKey)) {
      // update the fragment head when it is part of the blockMap otherwise
      blockMapState.setIn([targetKey, 'nextSibling'], headKey);
      blockMapState.setIn([headKey, 'prevSibling'], targetKey);
    } else {
      // update the target block that had the fragment head contents merged into it
      blockMapState.setIn([targetKey, 'nextSibling'], fragmentHeadBlock.getNextSiblingKey());
      blockMapState.setIn([fragmentHeadBlock.getNextSiblingKey(), 'prevSibling'], targetKey);
    }

    // update the last root block fragment
    blockMapState.setIn([lastRootFragmentBlockKey, 'nextSibling'], targetNextKey);

    // update the original target next block
    if (targetNextKey) {
      blockMapState.setIn([targetNextKey, 'prevSibling'], lastRootFragmentBlockKey);
    }

    // update fragment parent links
    fragmentRootBlocks.forEach(function (blockKey) {
      return blockMapState.setIn([blockKey, 'parent'], targetParentKey);
    });

    // update targetBlock parent child links
    if (targetParentKey) {
      var targetParent = blockMap.get(targetParentKey);
      var originalTargetParentChildKeys = targetParent.getChildKeys();

      var targetBlockIndex = originalTargetParentChildKeys.indexOf(targetKey);
      var insertionIndex = targetBlockIndex + 1;

      var newChildrenKeysArray = originalTargetParentChildKeys.toArray();

      // insert fragment children
      newChildrenKeysArray.splice.apply(newChildrenKeysArray, [insertionIndex, 0].concat(fragmentRootBlocks));

      blockMapState.setIn([targetParentKey, 'children'], List$2(newChildrenKeysArray));
    }
  });
};

var insertFragment = function insertFragment(contentState, selectionState, blockMap, fragment, targetKey, targetOffset) {
  var isTreeBasedBlockMap = blockMap.first() instanceof ContentBlockNode_1;
  var newBlockArr = [];
  var fragmentSize = fragment.size;
  var target = blockMap.get(targetKey);
  var head = fragment.first();
  var tail = fragment.last();
  var finalOffset = tail.getLength();
  var finalKey = tail.getKey();
  var shouldNotUpdateFromFragmentBlock = isTreeBasedBlockMap && (!target.getChildKeys().isEmpty() || !head.getChildKeys().isEmpty());

  blockMap.forEach(function (block, blockKey) {
    if (blockKey !== targetKey) {
      newBlockArr.push(block);
      return;
    }

    if (shouldNotUpdateFromFragmentBlock) {
      newBlockArr.push(block);
    } else {
      newBlockArr.push(updateHead(block, targetOffset, fragment));
    }

    // Insert fragment blocks after the head and before the tail.
    fragment
    // when we are updating the target block with the head fragment block we skip the first fragment
    // head since its contents have already been merged with the target block otherwise we include
    // the whole fragment
    .slice(shouldNotUpdateFromFragmentBlock ? 0 : 1, fragmentSize - 1).forEach(function (fragmentBlock) {
      return newBlockArr.push(fragmentBlock);
    });

    // update tail
    newBlockArr.push(updateTail(block, targetOffset, fragment));
  });

  var updatedBlockMap = BlockMapBuilder_1.createFromArray(newBlockArr);

  if (isTreeBasedBlockMap) {
    updatedBlockMap = updateBlockMapLinks(updatedBlockMap, blockMap, target, head);
  }

  return contentState.merge({
    blockMap: updatedBlockMap,
    selectionBefore: selectionState,
    selectionAfter: selectionState.merge({
      anchorKey: finalKey,
      anchorOffset: finalOffset,
      focusKey: finalKey,
      focusOffset: finalOffset,
      isBackward: false
    })
  });
};

var insertFragmentIntoContentState = function insertFragmentIntoContentState(contentState, selectionState, fragmentBlockMap) {
  !selectionState.isCollapsed() ? process.env.NODE_ENV !== 'production' ? invariant_1(false, '`insertFragment` should only be called with a collapsed selection state.') : invariant_1(false) : void 0;

  var blockMap = contentState.getBlockMap();
  var fragment = randomizeBlockMapKeys_1(fragmentBlockMap);
  var targetKey = selectionState.getStartKey();
  var targetOffset = selectionState.getStartOffset();

  var targetBlock = blockMap.get(targetKey);

  if (targetBlock instanceof ContentBlockNode_1) {
    !targetBlock.getChildKeys().isEmpty() ? process.env.NODE_ENV !== 'production' ? invariant_1(false, '`insertFragment` should not be called when a container node is selected.') : invariant_1(false) : void 0;
  }

  // When we insert a fragment with a single block we simply update the target block
  // with the contents of the inserted fragment block
  if (fragment.size === 1) {
    return updateExistingBlock(contentState, selectionState, blockMap, fragment.first(), targetKey, targetOffset);
  }

  return insertFragment(contentState, selectionState, blockMap, fragment, targetKey, targetOffset);
};

var insertFragmentIntoContentState_1 = insertFragmentIntoContentState;

var Repeat$2 = immutable.Repeat;


function insertTextIntoContentState(contentState, selectionState, text, characterMetadata) {
  !selectionState.isCollapsed() ? process.env.NODE_ENV !== 'production' ? invariant_1(false, '`insertText` should only be called with a collapsed range.') : invariant_1(false) : void 0;

  var len = text.length;
  if (!len) {
    return contentState;
  }

  var blockMap = contentState.getBlockMap();
  var key = selectionState.getStartKey();
  var offset = selectionState.getStartOffset();
  var block = blockMap.get(key);
  var blockText = block.getText();

  var newBlock = block.merge({
    text: blockText.slice(0, offset) + text + blockText.slice(offset, block.getLength()),
    characterList: insertIntoList_1(block.getCharacterList(), Repeat$2(characterMetadata, len).toList(), offset)
  });

  var newOffset = offset + len;

  return contentState.merge({
    blockMap: blockMap.set(key, newBlock),
    selectionAfter: selectionState.merge({
      anchorOffset: newOffset,
      focusOffset: newOffset
    })
  });
}

var insertTextIntoContentState_1 = insertTextIntoContentState;

var Map$5 = immutable.Map;


function modifyBlockForContentState(contentState, selectionState, operation) {
  var startKey = selectionState.getStartKey();
  var endKey = selectionState.getEndKey();
  var blockMap = contentState.getBlockMap();
  var newBlocks = blockMap.toSeq().skipUntil(function (_, k) {
    return k === startKey;
  }).takeUntil(function (_, k) {
    return k === endKey;
  }).concat(Map$5([[endKey, blockMap.get(endKey)]])).map(operation);

  return contentState.merge({
    blockMap: blockMap.merge(newBlocks),
    selectionBefore: selectionState,
    selectionAfter: selectionState
  });
}

var modifyBlockForContentState_1 = modifyBlockForContentState;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getNextDelimiterBlockKey
 * @format
 * 
 *
 * This is unstable and not part of the public API and should not be used by
 * production systems. This file may be update/removed without notice.
 */



var getNextDelimiterBlockKey = function getNextDelimiterBlockKey(block, blockMap) {
  var isExperimentalTreeBlock = block instanceof ContentBlockNode_1;

  if (!isExperimentalTreeBlock) {
    return null;
  }

  var nextSiblingKey = block.getNextSiblingKey();

  if (nextSiblingKey) {
    return nextSiblingKey;
  }

  var parent = block.getParentKey();

  if (!parent) {
    return null;
  }

  var nextNonDescendantBlock = blockMap.get(parent);
  while (nextNonDescendantBlock && !nextNonDescendantBlock.getNextSiblingKey()) {
    var parentKey = nextNonDescendantBlock.getParentKey();
    nextNonDescendantBlock = parentKey ? blockMap.get(parentKey) : null;
  }

  if (!nextNonDescendantBlock) {
    return null;
  }

  return nextNonDescendantBlock.getNextSiblingKey();
};

var getNextDelimiterBlockKey_1 = getNextDelimiterBlockKey;

var List$3 = immutable.List,
    Map$6 = immutable.Map;


var transformBlock = function transformBlock(key, blockMap, func) {
  if (!key) {
    return;
  }

  var block = blockMap.get(key);

  if (!block) {
    return;
  }

  blockMap.set(key, func(block));
};

/**
 * Ancestors needs to be preserved when there are non selected
 * children to make sure we do not leave any orphans behind
 */
var getAncestorsKeys = function getAncestorsKeys(blockKey, blockMap) {
  var parents = [];

  if (!blockKey) {
    return parents;
  }

  var blockNode = blockMap.get(blockKey);
  while (blockNode && blockNode.getParentKey()) {
    var parentKey = blockNode.getParentKey();
    if (parentKey) {
      parents.push(parentKey);
    }
    blockNode = parentKey ? blockMap.get(parentKey) : null;
  }

  return parents;
};

/**
 * Get all next delimiter keys until we hit a root delimiter and return
 * an array of key references
 */
var getNextDelimitersBlockKeys = function getNextDelimitersBlockKeys(block, blockMap) {
  var nextDelimiters = [];

  if (!block) {
    return nextDelimiters;
  }

  var nextDelimiter = getNextDelimiterBlockKey_1(block, blockMap);
  while (nextDelimiter && blockMap.get(nextDelimiter)) {
    var _block = blockMap.get(nextDelimiter);
    nextDelimiters.push(nextDelimiter);

    // we do not need to keep checking all root node siblings, just the first occurance
    nextDelimiter = _block.getParentKey() ? getNextDelimiterBlockKey_1(_block, blockMap) : null;
  }

  return nextDelimiters;
};

var getNextValidSibling = function getNextValidSibling(block, blockMap, originalBlockMap) {
  if (!block) {
    return null;
  }

  // note that we need to make sure we refer to the original block since this
  // function is called within a withMutations
  var nextValidSiblingKey = originalBlockMap.get(block.getKey()).getNextSiblingKey();

  while (nextValidSiblingKey && !blockMap.get(nextValidSiblingKey)) {
    nextValidSiblingKey = originalBlockMap.get(nextValidSiblingKey).getNextSiblingKey() || null;
  }

  return nextValidSiblingKey;
};

var getPrevValidSibling = function getPrevValidSibling(block, blockMap, originalBlockMap) {
  if (!block) {
    return null;
  }

  // note that we need to make sure we refer to the original block since this
  // function is called within a withMutations
  var prevValidSiblingKey = originalBlockMap.get(block.getKey()).getPrevSiblingKey();

  while (prevValidSiblingKey && !blockMap.get(prevValidSiblingKey)) {
    prevValidSiblingKey = originalBlockMap.get(prevValidSiblingKey).getPrevSiblingKey() || null;
  }

  return prevValidSiblingKey;
};

var updateBlockMapLinks$1 = function updateBlockMapLinks(blockMap, startBlock, endBlock, originalBlockMap) {
  return blockMap.withMutations(function (blocks) {
    // update start block if its retained
    transformBlock(startBlock.getKey(), blocks, function (block) {
      return block.merge({
        nextSibling: getNextValidSibling(startBlock, blocks, originalBlockMap),
        prevSibling: getPrevValidSibling(startBlock, blocks, originalBlockMap)
      });
    });

    // update endblock if its retained
    transformBlock(endBlock.getKey(), blocks, function (block) {
      return block.merge({
        nextSibling: getNextValidSibling(endBlock, blocks, originalBlockMap),
        prevSibling: getPrevValidSibling(endBlock, blocks, originalBlockMap)
      });
    });

    // update start block parent ancestors
    getAncestorsKeys(startBlock.getKey(), originalBlockMap).forEach(function (parentKey) {
      return transformBlock(parentKey, blocks, function (block) {
        return block.merge({
          children: block.getChildKeys().filter(function (key) {
            return blocks.get(key);
          }),
          nextSibling: getNextValidSibling(block, blocks, originalBlockMap),
          prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)
        });
      });
    });

    // update start block next - can only happen if startBlock == endBlock
    transformBlock(startBlock.getNextSiblingKey(), blocks, function (block) {
      return block.merge({
        prevSibling: startBlock.getPrevSiblingKey()
      });
    });

    // update start block prev
    transformBlock(startBlock.getPrevSiblingKey(), blocks, function (block) {
      return block.merge({
        nextSibling: getNextValidSibling(startBlock, blocks, originalBlockMap)
      });
    });

    // update end block next
    transformBlock(endBlock.getNextSiblingKey(), blocks, function (block) {
      return block.merge({
        prevSibling: getPrevValidSibling(endBlock, blocks, originalBlockMap)
      });
    });

    // update end block prev
    transformBlock(endBlock.getPrevSiblingKey(), blocks, function (block) {
      return block.merge({
        nextSibling: endBlock.getNextSiblingKey()
      });
    });

    // update end block parent ancestors
    getAncestorsKeys(endBlock.getKey(), originalBlockMap).forEach(function (parentKey) {
      transformBlock(parentKey, blocks, function (block) {
        return block.merge({
          children: block.getChildKeys().filter(function (key) {
            return blocks.get(key);
          }),
          nextSibling: getNextValidSibling(block, blocks, originalBlockMap),
          prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)
        });
      });
    });

    // update next delimiters all the way to a root delimiter
    getNextDelimitersBlockKeys(endBlock, originalBlockMap).forEach(function (delimiterKey) {
      return transformBlock(delimiterKey, blocks, function (block) {
        return block.merge({
          nextSibling: getNextValidSibling(block, blocks, originalBlockMap),
          prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)
        });
      });
    });
  });
};

var removeRangeFromContentState = function removeRangeFromContentState(contentState, selectionState) {
  if (selectionState.isCollapsed()) {
    return contentState;
  }

  var blockMap = contentState.getBlockMap();
  var startKey = selectionState.getStartKey();
  var startOffset = selectionState.getStartOffset();
  var endKey = selectionState.getEndKey();
  var endOffset = selectionState.getEndOffset();

  var startBlock = blockMap.get(startKey);
  var endBlock = blockMap.get(endKey);

  // we assume that ContentBlockNode and ContentBlocks are not mixed together
  var isExperimentalTreeBlock = startBlock instanceof ContentBlockNode_1;

  // used to retain blocks that should not be deleted to avoid orphan children
  var parentAncestors = [];

  if (isExperimentalTreeBlock) {
    var endBlockchildrenKeys = endBlock.getChildKeys();
    var endBlockAncestors = getAncestorsKeys(endKey, blockMap);

    // endBlock has unselected sibblings so we can not remove its ancestors parents
    if (endBlock.getNextSiblingKey()) {
      parentAncestors = parentAncestors.concat(endBlockAncestors);
    }

    // endBlock has children so can not remove this block or any of its ancestors
    if (!endBlockchildrenKeys.isEmpty()) {
      parentAncestors = parentAncestors.concat(endBlockAncestors.concat([endKey]));
    }

    // we need to retain all ancestors of the next delimiter block
    parentAncestors = parentAncestors.concat(getAncestorsKeys(getNextDelimiterBlockKey_1(endBlock, blockMap), blockMap));
  }

  var characterList = void 0;

  if (startBlock === endBlock) {
    characterList = removeFromList(startBlock.getCharacterList(), startOffset, endOffset);
  } else {
    characterList = startBlock.getCharacterList().slice(0, startOffset).concat(endBlock.getCharacterList().slice(endOffset));
  }

  var modifiedStart = startBlock.merge({
    text: startBlock.getText().slice(0, startOffset) + endBlock.getText().slice(endOffset),
    characterList: characterList
  });

  var newBlocks = blockMap.toSeq().skipUntil(function (_, k) {
    return k === startKey;
  }).takeUntil(function (_, k) {
    return k === endKey;
  }).filter(function (_, k) {
    return parentAncestors.indexOf(k) === -1;
  }).concat(Map$6([[endKey, null]])).map(function (_, k) {
    return k === startKey ? modifiedStart : null;
  });

  var updatedBlockMap = blockMap.merge(newBlocks).filter(function (block) {
    return !!block;
  });

  if (isExperimentalTreeBlock) {
    updatedBlockMap = updateBlockMapLinks$1(updatedBlockMap, startBlock, endBlock, blockMap);
  }

  return contentState.merge({
    blockMap: updatedBlockMap,
    selectionBefore: selectionState,
    selectionAfter: selectionState.merge({
      anchorKey: startKey,
      anchorOffset: startOffset,
      focusKey: startKey,
      focusOffset: startOffset,
      isBackward: false
    })
  });
};

/**
 * Maintain persistence for target list when removing characters on the
 * head and tail of the character list.
 */
var removeFromList = function removeFromList(targetList, startOffset, endOffset) {
  if (startOffset === 0) {
    while (startOffset < endOffset) {
      targetList = targetList.shift();
      startOffset++;
    }
  } else if (endOffset === targetList.count()) {
    while (endOffset > startOffset) {
      targetList = targetList.pop();
      endOffset--;
    }
  } else {
    var head = targetList.slice(0, startOffset);
    var tail = targetList.slice(endOffset);
    targetList = head.concat(tail).toList();
  }
  return targetList;
};

var removeRangeFromContentState_1 = removeRangeFromContentState;

var List$4 = immutable.List,
    Map$7 = immutable.Map;


var transformBlock$1 = function transformBlock(key, blockMap, func) {
  if (!key) {
    return;
  }

  var block = blockMap.get(key);

  if (!block) {
    return;
  }

  blockMap.set(key, func(block));
};

var updateBlockMapLinks$2 = function updateBlockMapLinks(blockMap, originalBlock, belowBlock) {
  return blockMap.withMutations(function (blocks) {
    var originalBlockKey = originalBlock.getKey();
    var belowBlockKey = belowBlock.getKey();

    // update block parent
    transformBlock$1(originalBlock.getParentKey(), blocks, function (block) {
      var parentChildrenList = block.getChildKeys();
      var insertionIndex = parentChildrenList.indexOf(originalBlockKey) + 1;
      var newChildrenArray = parentChildrenList.toArray();

      newChildrenArray.splice(insertionIndex, 0, belowBlockKey);

      return block.merge({
        children: List$4(newChildrenArray)
      });
    });

    // update original next block
    transformBlock$1(originalBlock.getNextSiblingKey(), blocks, function (block) {
      return block.merge({
        prevSibling: belowBlockKey
      });
    });

    // update original block
    transformBlock$1(originalBlockKey, blocks, function (block) {
      return block.merge({
        nextSibling: belowBlockKey
      });
    });

    // update below block
    transformBlock$1(belowBlockKey, blocks, function (block) {
      return block.merge({
        prevSibling: originalBlockKey
      });
    });
  });
};

var splitBlockInContentState = function splitBlockInContentState(contentState, selectionState) {
  !selectionState.isCollapsed() ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Selection range must be collapsed.') : invariant_1(false) : void 0;

  var key = selectionState.getAnchorKey();
  var offset = selectionState.getAnchorOffset();
  var blockMap = contentState.getBlockMap();
  var blockToSplit = blockMap.get(key);
  var text = blockToSplit.getText();
  var chars = blockToSplit.getCharacterList();
  var keyBelow = generateRandomKey_1();
  var isExperimentalTreeBlock = blockToSplit instanceof ContentBlockNode_1;

  var blockAbove = blockToSplit.merge({
    text: text.slice(0, offset),
    characterList: chars.slice(0, offset)
  });
  var blockBelow = blockAbove.merge({
    key: keyBelow,
    text: text.slice(offset),
    characterList: chars.slice(offset),
    data: Map$7()
  });

  var blocksBefore = blockMap.toSeq().takeUntil(function (v) {
    return v === blockToSplit;
  });
  var blocksAfter = blockMap.toSeq().skipUntil(function (v) {
    return v === blockToSplit;
  }).rest();
  var newBlocks = blocksBefore.concat([[key, blockAbove], [keyBelow, blockBelow]], blocksAfter).toOrderedMap();

  if (isExperimentalTreeBlock) {
    !blockToSplit.getChildKeys().isEmpty() ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'ContentBlockNode must not have children') : invariant_1(false) : void 0;

    newBlocks = updateBlockMapLinks$2(newBlocks, blockAbove, blockBelow);
  }

  return contentState.merge({
    blockMap: newBlocks,
    selectionBefore: selectionState,
    selectionAfter: selectionState.merge({
      anchorKey: keyBelow,
      anchorOffset: 0,
      focusKey: keyBelow,
      focusOffset: 0,
      isBackward: false
    })
  });
};

var splitBlockInContentState_1 = splitBlockInContentState;

var OrderedSet$3 = immutable.OrderedSet;

/**
 * `DraftModifier` provides a set of convenience methods that apply
 * modifications to a `ContentState` object based on a target `SelectionState`.
 *
 * Any change to a `ContentState` should be decomposable into a series of
 * transaction functions that apply the required changes and return output
 * `ContentState` objects.
 *
 * These functions encapsulate some of the most common transaction sequences.
 */

var DraftModifier = {
  replaceText: function replaceText(contentState, rangeToReplace, text, inlineStyle, entityKey) {
    var withoutEntities = removeEntitiesAtEdges_1(contentState, rangeToReplace);
    var withoutText = removeRangeFromContentState_1(withoutEntities, rangeToReplace);

    var character = CharacterMetadata_1.create({
      style: inlineStyle || OrderedSet$3(),
      entity: entityKey || null
    });

    return insertTextIntoContentState_1(withoutText, withoutText.getSelectionAfter(), text, character);
  },

  insertText: function insertText(contentState, targetRange, text, inlineStyle, entityKey) {
    !targetRange.isCollapsed() ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Target range must be collapsed for `insertText`.') : invariant_1(false) : void 0;
    return DraftModifier.replaceText(contentState, targetRange, text, inlineStyle, entityKey);
  },

  moveText: function moveText(contentState, removalRange, targetRange) {
    var movedFragment = getContentStateFragment_1(contentState, removalRange);

    var afterRemoval = DraftModifier.removeRange(contentState, removalRange, 'backward');

    return DraftModifier.replaceWithFragment(afterRemoval, targetRange, movedFragment);
  },

  replaceWithFragment: function replaceWithFragment(contentState, targetRange, fragment) {
    var withoutEntities = removeEntitiesAtEdges_1(contentState, targetRange);
    var withoutText = removeRangeFromContentState_1(withoutEntities, targetRange);

    return insertFragmentIntoContentState_1(withoutText, withoutText.getSelectionAfter(), fragment);
  },

  removeRange: function removeRange(contentState, rangeToRemove, removalDirection) {
    var startKey = void 0,
        endKey = void 0,
        startBlock = void 0,
        endBlock = void 0;
    if (rangeToRemove.getIsBackward()) {
      rangeToRemove = rangeToRemove.merge({
        anchorKey: rangeToRemove.getFocusKey(),
        anchorOffset: rangeToRemove.getFocusOffset(),
        focusKey: rangeToRemove.getAnchorKey(),
        focusOffset: rangeToRemove.getAnchorOffset(),
        isBackward: false
      });
    }
    startKey = rangeToRemove.getAnchorKey();
    endKey = rangeToRemove.getFocusKey();
    startBlock = contentState.getBlockForKey(startKey);
    endBlock = contentState.getBlockForKey(endKey);
    var startOffset = rangeToRemove.getStartOffset();
    var endOffset = rangeToRemove.getEndOffset();

    var startEntityKey = startBlock.getEntityAt(startOffset);
    var endEntityKey = endBlock.getEntityAt(endOffset - 1);

    // Check whether the selection state overlaps with a single entity.
    // If so, try to remove the appropriate substring of the entity text.
    if (startKey === endKey) {
      if (startEntityKey && startEntityKey === endEntityKey) {
        var _adjustedRemovalRange = getCharacterRemovalRange_1(contentState.getEntityMap(), startBlock, endBlock, rangeToRemove, removalDirection);
        return removeRangeFromContentState_1(contentState, _adjustedRemovalRange);
      }
    }
    var adjustedRemovalRange = rangeToRemove;

    var withoutEntities = removeEntitiesAtEdges_1(contentState, adjustedRemovalRange);
    return removeRangeFromContentState_1(withoutEntities, adjustedRemovalRange);
  },

  splitBlock: function splitBlock(contentState, selectionState) {
    var withoutEntities = removeEntitiesAtEdges_1(contentState, selectionState);
    var withoutText = removeRangeFromContentState_1(withoutEntities, selectionState);

    return splitBlockInContentState_1(withoutText, withoutText.getSelectionAfter());
  },

  applyInlineStyle: function applyInlineStyle(contentState, selectionState, inlineStyle) {
    return ContentStateInlineStyle_1.add(contentState, selectionState, inlineStyle);
  },

  removeInlineStyle: function removeInlineStyle(contentState, selectionState, inlineStyle) {
    return ContentStateInlineStyle_1.remove(contentState, selectionState, inlineStyle);
  },

  setBlockType: function setBlockType(contentState, selectionState, blockType) {
    return modifyBlockForContentState_1(contentState, selectionState, function (block) {
      return block.merge({ type: blockType, depth: 0 });
    });
  },

  setBlockData: function setBlockData(contentState, selectionState, blockData) {
    return modifyBlockForContentState_1(contentState, selectionState, function (block) {
      return block.merge({ data: blockData });
    });
  },

  mergeBlockData: function mergeBlockData(contentState, selectionState, blockData) {
    return modifyBlockForContentState_1(contentState, selectionState, function (block) {
      return block.merge({ data: block.getData().merge(blockData) });
    });
  },

  applyEntity: function applyEntity(contentState, selectionState, entityKey) {
    var withoutEntities = removeEntitiesAtEdges_1(contentState, selectionState);
    return applyEntityToContentState_1(withoutEntities, selectionState, entityKey);
  }
};

var DraftModifier_1 = DraftModifier;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * 
 */

function makeEmptyFunction(arg) {
  return function () {
    return arg;
  };
}

/**
 * This function accepts and discards inputs; it has no side effects. This is
 * primarily useful idiomatically for overridable function endpoints which
 * always need to be callable, since JS lacks a null-call idiom ala Cocoa.
 */
var emptyFunction = function emptyFunction() {};

emptyFunction.thatReturns = makeEmptyFunction;
emptyFunction.thatReturnsFalse = makeEmptyFunction(false);
emptyFunction.thatReturnsTrue = makeEmptyFunction(true);
emptyFunction.thatReturnsNull = makeEmptyFunction(null);
emptyFunction.thatReturnsThis = function () {
  return this;
};
emptyFunction.thatReturnsArgument = function (arg) {
  return arg;
};

var emptyFunction_1 = emptyFunction;

var List$5 = immutable.List,
    Repeat$3 = immutable.Repeat,
    Record$3 = immutable.Record;


var returnTrue = emptyFunction_1.thatReturnsTrue;

var FINGERPRINT_DELIMITER = '-';

var defaultLeafRange = {
  start: null,
  end: null
};

var LeafRange = Record$3(defaultLeafRange);

var defaultDecoratorRange = {
  start: null,
  end: null,
  decoratorKey: null,
  leaves: null
};

var DecoratorRange = Record$3(defaultDecoratorRange);

var BlockTree = {
  /**
   * Generate a block tree for a given ContentBlock/decorator pair.
   */
  generate: function generate(contentState, block, decorator) {
    var textLength = block.getLength();
    if (!textLength) {
      return List$5.of(new DecoratorRange({
        start: 0,
        end: 0,
        decoratorKey: null,
        leaves: List$5.of(new LeafRange({ start: 0, end: 0 }))
      }));
    }

    var leafSets = [];
    var decorations = decorator ? decorator.getDecorations(block, contentState) : List$5(Repeat$3(null, textLength));

    var chars = block.getCharacterList();

    findRangesImmutable_1(decorations, areEqual, returnTrue, function (start, end) {
      leafSets.push(new DecoratorRange({
        start: start,
        end: end,
        decoratorKey: decorations.get(start),
        leaves: generateLeaves(chars.slice(start, end).toList(), start)
      }));
    });

    return List$5(leafSets);
  },

  /**
   * Create a string representation of the given tree map. This allows us
   * to rapidly determine whether a tree has undergone a significant
   * structural change.
   */
  getFingerprint: function getFingerprint(tree) {
    return tree.map(function (leafSet) {
      var decoratorKey = leafSet.get('decoratorKey');
      var fingerprintString = decoratorKey !== null ? decoratorKey + '.' + (leafSet.get('end') - leafSet.get('start')) : '';
      return '' + fingerprintString + '.' + leafSet.get('leaves').size;
    }).join(FINGERPRINT_DELIMITER);
  }
};

/**
 * Generate LeafRange records for a given character list.
 */
function generateLeaves(characters, offset) {
  var leaves = [];
  var inlineStyles = characters.map(function (c) {
    return c.getStyle();
  }).toList();
  findRangesImmutable_1(inlineStyles, areEqual, returnTrue, function (start, end) {
    leaves.push(new LeafRange({
      start: start + offset,
      end: end + offset
    }));
  });
  return List$5(leaves);
}

function areEqual(a, b) {
  return a === b;
}

var BlockTree_1 = BlockTree;

function _classCallCheck$3(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn$3(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits$3(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }



var Record$4 = immutable.Record;


var DraftEntityInstanceRecord = Record$4({
  type: 'TOKEN',
  mutability: 'IMMUTABLE',
  data: Object
});

/**
 * An instance of a document entity, consisting of a `type` and relevant
 * `data`, metadata about the entity.
 *
 * For instance, a "link" entity might provide a URI, and a "mention"
 * entity might provide the mentioned user's ID. These pieces of data
 * may be used when rendering the entity as part of a ContentBlock DOM
 * representation. For a link, the data would be used as an href for
 * the rendered anchor. For a mention, the ID could be used to retrieve
 * a hovercard.
 */

var DraftEntityInstance = function (_DraftEntityInstanceR) {
  _inherits$3(DraftEntityInstance, _DraftEntityInstanceR);

  function DraftEntityInstance() {
    _classCallCheck$3(this, DraftEntityInstance);

    return _possibleConstructorReturn$3(this, _DraftEntityInstanceR.apply(this, arguments));
  }

  DraftEntityInstance.prototype.getType = function getType() {
    return this.get('type');
  };

  DraftEntityInstance.prototype.getMutability = function getMutability() {
    return this.get('mutability');
  };

  DraftEntityInstance.prototype.getData = function getData() {
    return this.get('data');
  };

  return DraftEntityInstance;
}(DraftEntityInstanceRecord);

var DraftEntityInstance_1 = DraftEntityInstance;

var _extends = objectAssign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule DraftEntity
 * @format
 * 
 */






var Map$8 = immutable.Map;


var instances = Map$8();
var instanceKey = 0;

/**
 * Temporary utility for generating the warnings
 */
function logWarning(oldMethodCall, newMethodCall) {
  console.warn('WARNING: ' + oldMethodCall + ' will be deprecated soon!\nPlease use "' + newMethodCall + '" instead.');
}

/**
 * A "document entity" is an object containing metadata associated with a
 * piece of text in a ContentBlock.
 *
 * For example, a `link` entity might include a `uri` property. When a
 * ContentBlock is rendered in the browser, text that refers to that link
 * entity may be rendered as an anchor, with the `uri` as the href value.
 *
 * In a ContentBlock, every position in the text may correspond to zero
 * or one entities. This correspondence is tracked using a key string,
 * generated via DraftEntity.create() and used to obtain entity metadata
 * via DraftEntity.get().
 */
var DraftEntity = {
  /**
   * WARNING: This method will be deprecated soon!
   * Please use 'contentState.getLastCreatedEntityKey' instead.
   * ---
   * Get the random key string from whatever entity was last created.
   * We need this to support the new API, as part of transitioning to put Entity
   * storage in contentState.
   */
  getLastCreatedEntityKey: function getLastCreatedEntityKey() {
    logWarning('DraftEntity.getLastCreatedEntityKey', 'contentState.getLastCreatedEntityKey');
    return DraftEntity.__getLastCreatedEntityKey();
  },

  /**
   * WARNING: This method will be deprecated soon!
   * Please use 'contentState.createEntity' instead.
   * ---
   * Create a DraftEntityInstance and store it for later retrieval.
   *
   * A random key string will be generated and returned. This key may
   * be used to track the entity's usage in a ContentBlock, and for
   * retrieving data about the entity at render time.
   */
  create: function create(type, mutability, data) {
    logWarning('DraftEntity.create', 'contentState.createEntity');
    return DraftEntity.__create(type, mutability, data);
  },

  /**
   * WARNING: This method will be deprecated soon!
   * Please use 'contentState.addEntity' instead.
   * ---
   * Add an existing DraftEntityInstance to the DraftEntity map. This is
   * useful when restoring instances from the server.
   */
  add: function add(instance) {
    logWarning('DraftEntity.add', 'contentState.addEntity');
    return DraftEntity.__add(instance);
  },

  /**
   * WARNING: This method will be deprecated soon!
   * Please use 'contentState.getEntity' instead.
   * ---
   * Retrieve the entity corresponding to the supplied key string.
   */
  get: function get(key) {
    logWarning('DraftEntity.get', 'contentState.getEntity');
    return DraftEntity.__get(key);
  },

  /**
   * WARNING: This method will be deprecated soon!
   * Please use 'contentState.mergeEntityData' instead.
   * ---
   * Entity instances are immutable. If you need to update the data for an
   * instance, this method will merge your data updates and return a new
   * instance.
   */
  mergeData: function mergeData(key, toMerge) {
    logWarning('DraftEntity.mergeData', 'contentState.mergeEntityData');
    return DraftEntity.__mergeData(key, toMerge);
  },

  /**
   * WARNING: This method will be deprecated soon!
   * Please use 'contentState.replaceEntityData' instead.
   * ---
   * Completely replace the data for a given instance.
   */
  replaceData: function replaceData(key, newData) {
    logWarning('DraftEntity.replaceData', 'contentState.replaceEntityData');
    return DraftEntity.__replaceData(key, newData);
  },

  // ***********************************WARNING******************************
  // --- the above public API will be deprecated in the next version of Draft!
  // The methods below this line are private - don't call them directly.

  /**
   * Get the random key string from whatever entity was last created.
   * We need this to support the new API, as part of transitioning to put Entity
   * storage in contentState.
   */
  __getLastCreatedEntityKey: function __getLastCreatedEntityKey() {
    return '' + instanceKey;
  },

  /**
   * Create a DraftEntityInstance and store it for later retrieval.
   *
   * A random key string will be generated and returned. This key may
   * be used to track the entity's usage in a ContentBlock, and for
   * retrieving data about the entity at render time.
   */
  __create: function __create(type, mutability, data) {
    return DraftEntity.__add(new DraftEntityInstance_1({ type: type, mutability: mutability, data: data || {} }));
  },

  /**
   * Add an existing DraftEntityInstance to the DraftEntity map. This is
   * useful when restoring instances from the server.
   */
  __add: function __add(instance) {
    var key = '' + ++instanceKey;
    instances = instances.set(key, instance);
    return key;
  },

  /**
   * Retrieve the entity corresponding to the supplied key string.
   */
  __get: function __get(key) {
    var instance = instances.get(key);
    !!!instance ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Unknown DraftEntity key: %s.', key) : invariant_1(false) : void 0;
    return instance;
  },

  /**
   * Entity instances are immutable. If you need to update the data for an
   * instance, this method will merge your data updates and return a new
   * instance.
   */
  __mergeData: function __mergeData(key, toMerge) {
    var instance = DraftEntity.__get(key);
    var newData = _extends({}, instance.getData(), toMerge);
    var newInstance = instance.set('data', newData);
    instances = instances.set(key, newInstance);
    return newInstance;
  },

  /**
   * Completely replace the data for a given instance.
   */
  __replaceData: function __replaceData(key, newData) {
    var instance = DraftEntity.__get(key);
    var newInstance = instance.set('data', newData);
    instances = instances.set(key, newInstance);
    return newInstance;
  }
};

var DraftEntity_1 = DraftEntity;

function _classCallCheck$4(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn$4(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits$4(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }



var Record$5 = immutable.Record;


var defaultRecord$3 = {
  anchorKey: '',
  anchorOffset: 0,
  focusKey: '',
  focusOffset: 0,
  isBackward: false,
  hasFocus: false
};

var SelectionStateRecord = Record$5(defaultRecord$3);

var SelectionState = function (_SelectionStateRecord) {
  _inherits$4(SelectionState, _SelectionStateRecord);

  function SelectionState() {
    _classCallCheck$4(this, SelectionState);

    return _possibleConstructorReturn$4(this, _SelectionStateRecord.apply(this, arguments));
  }

  SelectionState.prototype.serialize = function serialize() {
    return 'Anchor: ' + this.getAnchorKey() + ':' + this.getAnchorOffset() + ', ' + 'Focus: ' + this.getFocusKey() + ':' + this.getFocusOffset() + ', ' + 'Is Backward: ' + String(this.getIsBackward()) + ', ' + 'Has Focus: ' + String(this.getHasFocus());
  };

  SelectionState.prototype.getAnchorKey = function getAnchorKey() {
    return this.get('anchorKey');
  };

  SelectionState.prototype.getAnchorOffset = function getAnchorOffset() {
    return this.get('anchorOffset');
  };

  SelectionState.prototype.getFocusKey = function getFocusKey() {
    return this.get('focusKey');
  };

  SelectionState.prototype.getFocusOffset = function getFocusOffset() {
    return this.get('focusOffset');
  };

  SelectionState.prototype.getIsBackward = function getIsBackward() {
    return this.get('isBackward');
  };

  SelectionState.prototype.getHasFocus = function getHasFocus() {
    return this.get('hasFocus');
  };

  /**
   * Return whether the specified range overlaps with an edge of the
   * SelectionState.
   */


  SelectionState.prototype.hasEdgeWithin = function hasEdgeWithin(blockKey, start, end) {
    var anchorKey = this.getAnchorKey();
    var focusKey = this.getFocusKey();

    if (anchorKey === focusKey && anchorKey === blockKey) {
      var selectionStart = this.getStartOffset();
      var selectionEnd = this.getEndOffset();
      return start <= selectionEnd && selectionStart <= end;
    }

    if (blockKey !== anchorKey && blockKey !== focusKey) {
      return false;
    }

    var offsetToCheck = blockKey === anchorKey ? this.getAnchorOffset() : this.getFocusOffset();

    return start <= offsetToCheck && end >= offsetToCheck;
  };

  SelectionState.prototype.isCollapsed = function isCollapsed() {
    return this.getAnchorKey() === this.getFocusKey() && this.getAnchorOffset() === this.getFocusOffset();
  };

  SelectionState.prototype.getStartKey = function getStartKey() {
    return this.getIsBackward() ? this.getFocusKey() : this.getAnchorKey();
  };

  SelectionState.prototype.getStartOffset = function getStartOffset() {
    return this.getIsBackward() ? this.getFocusOffset() : this.getAnchorOffset();
  };

  SelectionState.prototype.getEndKey = function getEndKey() {
    return this.getIsBackward() ? this.getAnchorKey() : this.getFocusKey();
  };

  SelectionState.prototype.getEndOffset = function getEndOffset() {
    return this.getIsBackward() ? this.getAnchorOffset() : this.getFocusOffset();
  };

  SelectionState.createEmpty = function createEmpty(key) {
    return new SelectionState({
      anchorKey: key,
      anchorOffset: 0,
      focusKey: key,
      focusOffset: 0,
      isBackward: false,
      hasFocus: false
    });
  };

  return SelectionState;
}(SelectionStateRecord);

var SelectionState_1 = SelectionState;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule sanitizeDraftText
 * @format
 * 
 */

var REGEX_BLOCK_DELIMITER = new RegExp('\r', 'g');

function sanitizeDraftText(input) {
  return input.replace(REGEX_BLOCK_DELIMITER, '');
}

var sanitizeDraftText_1 = sanitizeDraftText;

function _classCallCheck$5(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn$5(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits$5(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }













var List$6 = immutable.List,
    Record$6 = immutable.Record,
    Repeat$4 = immutable.Repeat;

var defaultRecord$4 = {
  entityMap: null,
  blockMap: null,
  selectionBefore: null,
  selectionAfter: null
};

var ContentBlockNodeRecord =  ContentBlock_1;

var ContentStateRecord = Record$6(defaultRecord$4);

var ContentState = function (_ContentStateRecord) {
  _inherits$5(ContentState, _ContentStateRecord);

  function ContentState() {
    _classCallCheck$5(this, ContentState);

    return _possibleConstructorReturn$5(this, _ContentStateRecord.apply(this, arguments));
  }

  ContentState.prototype.getEntityMap = function getEntityMap() {
    // TODO: update this when we fully remove DraftEntity
    return DraftEntity_1;
  };

  ContentState.prototype.getBlockMap = function getBlockMap() {
    return this.get('blockMap');
  };

  ContentState.prototype.getSelectionBefore = function getSelectionBefore() {
    return this.get('selectionBefore');
  };

  ContentState.prototype.getSelectionAfter = function getSelectionAfter() {
    return this.get('selectionAfter');
  };

  ContentState.prototype.getBlockForKey = function getBlockForKey(key) {
    var block = this.getBlockMap().get(key);
    return block;
  };

  ContentState.prototype.getKeyBefore = function getKeyBefore(key) {
    return this.getBlockMap().reverse().keySeq().skipUntil(function (v) {
      return v === key;
    }).skip(1).first();
  };

  ContentState.prototype.getKeyAfter = function getKeyAfter(key) {
    return this.getBlockMap().keySeq().skipUntil(function (v) {
      return v === key;
    }).skip(1).first();
  };

  ContentState.prototype.getBlockAfter = function getBlockAfter(key) {
    return this.getBlockMap().skipUntil(function (_, k) {
      return k === key;
    }).skip(1).first();
  };

  ContentState.prototype.getBlockBefore = function getBlockBefore(key) {
    return this.getBlockMap().reverse().skipUntil(function (_, k) {
      return k === key;
    }).skip(1).first();
  };

  ContentState.prototype.getBlocksAsArray = function getBlocksAsArray() {
    return this.getBlockMap().toArray();
  };

  ContentState.prototype.getFirstBlock = function getFirstBlock() {
    return this.getBlockMap().first();
  };

  ContentState.prototype.getLastBlock = function getLastBlock() {
    return this.getBlockMap().last();
  };

  ContentState.prototype.getPlainText = function getPlainText(delimiter) {
    return this.getBlockMap().map(function (block) {
      return block ? block.getText() : '';
    }).join(delimiter || '\n');
  };

  ContentState.prototype.getLastCreatedEntityKey = function getLastCreatedEntityKey() {
    // TODO: update this when we fully remove DraftEntity
    return DraftEntity_1.__getLastCreatedEntityKey();
  };

  ContentState.prototype.hasText = function hasText() {
    var blockMap = this.getBlockMap();
    return blockMap.size > 1 || blockMap.first().getLength() > 0;
  };

  ContentState.prototype.createEntity = function createEntity(type, mutability, data) {
    // TODO: update this when we fully remove DraftEntity
    DraftEntity_1.__create(type, mutability, data);
    return this;
  };

  ContentState.prototype.mergeEntityData = function mergeEntityData(key, toMerge) {
    // TODO: update this when we fully remove DraftEntity
    DraftEntity_1.__mergeData(key, toMerge);
    return this;
  };

  ContentState.prototype.replaceEntityData = function replaceEntityData(key, newData) {
    // TODO: update this when we fully remove DraftEntity
    DraftEntity_1.__replaceData(key, newData);
    return this;
  };

  ContentState.prototype.addEntity = function addEntity(instance) {
    // TODO: update this when we fully remove DraftEntity
    DraftEntity_1.__add(instance);
    return this;
  };

  ContentState.prototype.getEntity = function getEntity(key) {
    // TODO: update this when we fully remove DraftEntity
    return DraftEntity_1.__get(key);
  };

  ContentState.createFromBlockArray = function createFromBlockArray(
  // TODO: update flow type when we completely deprecate the old entity API
  blocks, entityMap) {
    // TODO: remove this when we completely deprecate the old entity API
    var theBlocks = Array.isArray(blocks) ? blocks : blocks.contentBlocks;
    var blockMap = BlockMapBuilder_1.createFromArray(theBlocks);
    var selectionState = blockMap.isEmpty() ? new SelectionState_1() : SelectionState_1.createEmpty(blockMap.first().getKey());
    return new ContentState({
      blockMap: blockMap,
      entityMap: entityMap || DraftEntity_1,
      selectionBefore: selectionState,
      selectionAfter: selectionState
    });
  };

  ContentState.createFromText = function createFromText(text) {
    var delimiter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : /\r\n?|\n/g;

    var strings = text.split(delimiter);
    var blocks = strings.map(function (block) {
      block = sanitizeDraftText_1(block);
      return new ContentBlockNodeRecord({
        key: generateRandomKey_1(),
        text: block,
        type: 'unstyled',
        characterList: List$6(Repeat$4(CharacterMetadata_1.EMPTY, block.length))
      });
    });
    return ContentState.createFromBlockArray(blocks);
  };

  return ContentState;
}(ContentStateRecord);

var ContentState_1 = ContentState;

var NEUTRAL = 'NEUTRAL'; // No strong direction
var LTR = 'LTR'; // Left-to-Right direction
var RTL = 'RTL'; // Right-to-Left direction

var globalDir = null;

// == Helpers ==

/**
 * Check if a directionality value is a Strong one
 */
function isStrong(dir) {
  return dir === LTR || dir === RTL;
}

/**
 * Get string value to be used for `dir` HTML attribute or `direction` CSS
 * property.
 */
function getHTMLDir(dir) {
  !isStrong(dir) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, '`dir` must be a strong direction to be converted to HTML Direction') : invariant_1(false) : void 0;
  return dir === LTR ? 'ltr' : 'rtl';
}

/**
 * Get string value to be used for `dir` HTML attribute or `direction` CSS
 * property, but returns null if `dir` has same value as `otherDir`.
 * `null`.
 */
function getHTMLDirIfDifferent(dir, otherDir) {
  !isStrong(dir) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, '`dir` must be a strong direction to be converted to HTML Direction') : invariant_1(false) : void 0;
  !isStrong(otherDir) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, '`otherDir` must be a strong direction to be converted to HTML Direction') : invariant_1(false) : void 0;
  return dir === otherDir ? null : getHTMLDir(dir);
}

// == Global Direction ==

/**
 * Set the global direction.
 */
function setGlobalDir(dir) {
  globalDir = dir;
}

/**
 * Initialize the global direction
 */
function initGlobalDir() {
  setGlobalDir(LTR);
}

/**
 * Get the global direction
 */
function getGlobalDir() {
  if (!globalDir) {
    this.initGlobalDir();
  }
  !globalDir ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Global direction not set.') : invariant_1(false) : void 0;
  return globalDir;
}

var UnicodeBidiDirection = {
  // Values
  NEUTRAL: NEUTRAL,
  LTR: LTR,
  RTL: RTL,
  // Helpers
  isStrong: isStrong,
  getHTMLDir: getHTMLDir,
  getHTMLDirIfDifferent: getHTMLDirIfDifferent,
  // Global Direction
  setGlobalDir: setGlobalDir,
  initGlobalDir: initGlobalDir,
  getGlobalDir: getGlobalDir
};

var UnicodeBidiDirection_1 = UnicodeBidiDirection;

/**
 * RegExp ranges of characters with a *Strong* Bidi_Class value.
 *
 * Data is based on DerivedBidiClass.txt in UCD version 7.0.0.
 *
 * NOTE: For performance reasons, we only support Unicode's
 *       Basic Multilingual Plane (BMP) for now.
 */
var RANGE_BY_BIDI_TYPE = {

  L: 'A-Za-z\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u01BA\u01BB' + '\u01BC-\u01BF\u01C0-\u01C3\u01C4-\u0293\u0294\u0295-\u02AF\u02B0-\u02B8' + '\u02BB-\u02C1\u02D0-\u02D1\u02E0-\u02E4\u02EE\u0370-\u0373\u0376-\u0377' + '\u037A\u037B-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1' + '\u03A3-\u03F5\u03F7-\u0481\u0482\u048A-\u052F\u0531-\u0556\u0559' + '\u055A-\u055F\u0561-\u0587\u0589\u0903\u0904-\u0939\u093B\u093D' + '\u093E-\u0940\u0949-\u094C\u094E-\u094F\u0950\u0958-\u0961\u0964-\u0965' + '\u0966-\u096F\u0970\u0971\u0972-\u0980\u0982-\u0983\u0985-\u098C' + '\u098F-\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD' + '\u09BE-\u09C0\u09C7-\u09C8\u09CB-\u09CC\u09CE\u09D7\u09DC-\u09DD' + '\u09DF-\u09E1\u09E6-\u09EF\u09F0-\u09F1\u09F4-\u09F9\u09FA\u0A03' + '\u0A05-\u0A0A\u0A0F-\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32-\u0A33' + '\u0A35-\u0A36\u0A38-\u0A39\u0A3E-\u0A40\u0A59-\u0A5C\u0A5E\u0A66-\u0A6F' + '\u0A72-\u0A74\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0' + '\u0AB2-\u0AB3\u0AB5-\u0AB9\u0ABD\u0ABE-\u0AC0\u0AC9\u0ACB-\u0ACC\u0AD0' + '\u0AE0-\u0AE1\u0AE6-\u0AEF\u0AF0\u0B02-\u0B03\u0B05-\u0B0C\u0B0F-\u0B10' + '\u0B13-\u0B28\u0B2A-\u0B30\u0B32-\u0B33\u0B35-\u0B39\u0B3D\u0B3E\u0B40' + '\u0B47-\u0B48\u0B4B-\u0B4C\u0B57\u0B5C-\u0B5D\u0B5F-\u0B61\u0B66-\u0B6F' + '\u0B70\u0B71\u0B72-\u0B77\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95' + '\u0B99-\u0B9A\u0B9C\u0B9E-\u0B9F\u0BA3-\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9' + '\u0BBE-\u0BBF\u0BC1-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCC\u0BD0\u0BD7' + '\u0BE6-\u0BEF\u0BF0-\u0BF2\u0C01-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10' + '\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C41-\u0C44\u0C58-\u0C59\u0C60-\u0C61' + '\u0C66-\u0C6F\u0C7F\u0C82-\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8' + '\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CBE\u0CBF\u0CC0-\u0CC4\u0CC6' + '\u0CC7-\u0CC8\u0CCA-\u0CCB\u0CD5-\u0CD6\u0CDE\u0CE0-\u0CE1\u0CE6-\u0CEF' + '\u0CF1-\u0CF2\u0D02-\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D' + '\u0D3E-\u0D40\u0D46-\u0D48\u0D4A-\u0D4C\u0D4E\u0D57\u0D60-\u0D61' + '\u0D66-\u0D6F\u0D70-\u0D75\u0D79\u0D7A-\u0D7F\u0D82-\u0D83\u0D85-\u0D96' + '\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCF-\u0DD1\u0DD8-\u0DDF' + '\u0DE6-\u0DEF\u0DF2-\u0DF3\u0DF4\u0E01-\u0E30\u0E32-\u0E33\u0E40-\u0E45' + '\u0E46\u0E4F\u0E50-\u0E59\u0E5A-\u0E5B\u0E81-\u0E82\u0E84\u0E87-\u0E88' + '\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7' + '\u0EAA-\u0EAB\u0EAD-\u0EB0\u0EB2-\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6' + '\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F01-\u0F03\u0F04-\u0F12\u0F13\u0F14' + '\u0F15-\u0F17\u0F1A-\u0F1F\u0F20-\u0F29\u0F2A-\u0F33\u0F34\u0F36\u0F38' + '\u0F3E-\u0F3F\u0F40-\u0F47\u0F49-\u0F6C\u0F7F\u0F85\u0F88-\u0F8C' + '\u0FBE-\u0FC5\u0FC7-\u0FCC\u0FCE-\u0FCF\u0FD0-\u0FD4\u0FD5-\u0FD8' + '\u0FD9-\u0FDA\u1000-\u102A\u102B-\u102C\u1031\u1038\u103B-\u103C\u103F' + '\u1040-\u1049\u104A-\u104F\u1050-\u1055\u1056-\u1057\u105A-\u105D\u1061' + '\u1062-\u1064\u1065-\u1066\u1067-\u106D\u106E-\u1070\u1075-\u1081' + '\u1083-\u1084\u1087-\u108C\u108E\u108F\u1090-\u1099\u109A-\u109C' + '\u109E-\u109F\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FB\u10FC' + '\u10FD-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288' + '\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5' + '\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1360-\u1368' + '\u1369-\u137C\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166D-\u166E' + '\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EB-\u16ED\u16EE-\u16F0' + '\u16F1-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1735-\u1736' + '\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17B6\u17BE-\u17C5' + '\u17C7-\u17C8\u17D4-\u17D6\u17D7\u17D8-\u17DA\u17DC\u17E0-\u17E9' + '\u1810-\u1819\u1820-\u1842\u1843\u1844-\u1877\u1880-\u18A8\u18AA' + '\u18B0-\u18F5\u1900-\u191E\u1923-\u1926\u1929-\u192B\u1930-\u1931' + '\u1933-\u1938\u1946-\u194F\u1950-\u196D\u1970-\u1974\u1980-\u19AB' + '\u19B0-\u19C0\u19C1-\u19C7\u19C8-\u19C9\u19D0-\u19D9\u19DA\u1A00-\u1A16' + '\u1A19-\u1A1A\u1A1E-\u1A1F\u1A20-\u1A54\u1A55\u1A57\u1A61\u1A63-\u1A64' + '\u1A6D-\u1A72\u1A80-\u1A89\u1A90-\u1A99\u1AA0-\u1AA6\u1AA7\u1AA8-\u1AAD' + '\u1B04\u1B05-\u1B33\u1B35\u1B3B\u1B3D-\u1B41\u1B43-\u1B44\u1B45-\u1B4B' + '\u1B50-\u1B59\u1B5A-\u1B60\u1B61-\u1B6A\u1B74-\u1B7C\u1B82\u1B83-\u1BA0' + '\u1BA1\u1BA6-\u1BA7\u1BAA\u1BAE-\u1BAF\u1BB0-\u1BB9\u1BBA-\u1BE5\u1BE7' + '\u1BEA-\u1BEC\u1BEE\u1BF2-\u1BF3\u1BFC-\u1BFF\u1C00-\u1C23\u1C24-\u1C2B' + '\u1C34-\u1C35\u1C3B-\u1C3F\u1C40-\u1C49\u1C4D-\u1C4F\u1C50-\u1C59' + '\u1C5A-\u1C77\u1C78-\u1C7D\u1C7E-\u1C7F\u1CC0-\u1CC7\u1CD3\u1CE1' + '\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF2-\u1CF3\u1CF5-\u1CF6\u1D00-\u1D2B' + '\u1D2C-\u1D6A\u1D6B-\u1D77\u1D78\u1D79-\u1D9A\u1D9B-\u1DBF\u1E00-\u1F15' + '\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D' + '\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC' + '\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u200E' + '\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D' + '\u2124\u2126\u2128\u212A-\u212D\u212F-\u2134\u2135-\u2138\u2139' + '\u213C-\u213F\u2145-\u2149\u214E\u214F\u2160-\u2182\u2183-\u2184' + '\u2185-\u2188\u2336-\u237A\u2395\u249C-\u24E9\u26AC\u2800-\u28FF' + '\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2C7B\u2C7C-\u2C7D\u2C7E-\u2CE4' + '\u2CEB-\u2CEE\u2CF2-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F' + '\u2D70\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE' + '\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u3005\u3006\u3007' + '\u3021-\u3029\u302E-\u302F\u3031-\u3035\u3038-\u303A\u303B\u303C' + '\u3041-\u3096\u309D-\u309E\u309F\u30A1-\u30FA\u30FC-\u30FE\u30FF' + '\u3105-\u312D\u3131-\u318E\u3190-\u3191\u3192-\u3195\u3196-\u319F' + '\u31A0-\u31BA\u31F0-\u31FF\u3200-\u321C\u3220-\u3229\u322A-\u3247' + '\u3248-\u324F\u3260-\u327B\u327F\u3280-\u3289\u328A-\u32B0\u32C0-\u32CB' + '\u32D0-\u32FE\u3300-\u3376\u337B-\u33DD\u33E0-\u33FE\u3400-\u4DB5' + '\u4E00-\u9FCC\uA000-\uA014\uA015\uA016-\uA48C\uA4D0-\uA4F7\uA4F8-\uA4FD' + '\uA4FE-\uA4FF\uA500-\uA60B\uA60C\uA610-\uA61F\uA620-\uA629\uA62A-\uA62B' + '\uA640-\uA66D\uA66E\uA680-\uA69B\uA69C-\uA69D\uA6A0-\uA6E5\uA6E6-\uA6EF' + '\uA6F2-\uA6F7\uA722-\uA76F\uA770\uA771-\uA787\uA789-\uA78A\uA78B-\uA78E' + '\uA790-\uA7AD\uA7B0-\uA7B1\uA7F7\uA7F8-\uA7F9\uA7FA\uA7FB-\uA801' + '\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA823-\uA824\uA827\uA830-\uA835' + '\uA836-\uA837\uA840-\uA873\uA880-\uA881\uA882-\uA8B3\uA8B4-\uA8C3' + '\uA8CE-\uA8CF\uA8D0-\uA8D9\uA8F2-\uA8F7\uA8F8-\uA8FA\uA8FB\uA900-\uA909' + '\uA90A-\uA925\uA92E-\uA92F\uA930-\uA946\uA952-\uA953\uA95F\uA960-\uA97C' + '\uA983\uA984-\uA9B2\uA9B4-\uA9B5\uA9BA-\uA9BB\uA9BD-\uA9C0\uA9C1-\uA9CD' + '\uA9CF\uA9D0-\uA9D9\uA9DE-\uA9DF\uA9E0-\uA9E4\uA9E6\uA9E7-\uA9EF' + '\uA9F0-\uA9F9\uA9FA-\uA9FE\uAA00-\uAA28\uAA2F-\uAA30\uAA33-\uAA34' + '\uAA40-\uAA42\uAA44-\uAA4B\uAA4D\uAA50-\uAA59\uAA5C-\uAA5F\uAA60-\uAA6F' + '\uAA70\uAA71-\uAA76\uAA77-\uAA79\uAA7A\uAA7B\uAA7D\uAA7E-\uAAAF\uAAB1' + '\uAAB5-\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADC\uAADD\uAADE-\uAADF' + '\uAAE0-\uAAEA\uAAEB\uAAEE-\uAAEF\uAAF0-\uAAF1\uAAF2\uAAF3-\uAAF4\uAAF5' + '\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E' + '\uAB30-\uAB5A\uAB5B\uAB5C-\uAB5F\uAB64-\uAB65\uABC0-\uABE2\uABE3-\uABE4' + '\uABE6-\uABE7\uABE9-\uABEA\uABEB\uABEC\uABF0-\uABF9\uAC00-\uD7A3' + '\uD7B0-\uD7C6\uD7CB-\uD7FB\uE000-\uF8FF\uF900-\uFA6D\uFA70-\uFAD9' + '\uFB00-\uFB06\uFB13-\uFB17\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFF6F\uFF70' + '\uFF71-\uFF9D\uFF9E-\uFF9F\uFFA0-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF' + '\uFFD2-\uFFD7\uFFDA-\uFFDC',

  R: '\u0590\u05BE\u05C0\u05C3\u05C6\u05C8-\u05CF\u05D0-\u05EA\u05EB-\u05EF' + '\u05F0-\u05F2\u05F3-\u05F4\u05F5-\u05FF\u07C0-\u07C9\u07CA-\u07EA' + '\u07F4-\u07F5\u07FA\u07FB-\u07FF\u0800-\u0815\u081A\u0824\u0828' + '\u082E-\u082F\u0830-\u083E\u083F\u0840-\u0858\u085C-\u085D\u085E' + '\u085F-\u089F\u200F\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB37\uFB38-\uFB3C' + '\uFB3D\uFB3E\uFB3F\uFB40-\uFB41\uFB42\uFB43-\uFB44\uFB45\uFB46-\uFB4F',

  AL: '\u0608\u060B\u060D\u061B\u061C\u061D\u061E-\u061F\u0620-\u063F\u0640' + '\u0641-\u064A\u066D\u066E-\u066F\u0671-\u06D3\u06D4\u06D5\u06E5-\u06E6' + '\u06EE-\u06EF\u06FA-\u06FC\u06FD-\u06FE\u06FF\u0700-\u070D\u070E\u070F' + '\u0710\u0712-\u072F\u074B-\u074C\u074D-\u07A5\u07B1\u07B2-\u07BF' + '\u08A0-\u08B2\u08B3-\u08E3\uFB50-\uFBB1\uFBB2-\uFBC1\uFBC2-\uFBD2' + '\uFBD3-\uFD3D\uFD40-\uFD4F\uFD50-\uFD8F\uFD90-\uFD91\uFD92-\uFDC7' + '\uFDC8-\uFDCF\uFDF0-\uFDFB\uFDFC\uFDFE-\uFDFF\uFE70-\uFE74\uFE75' + '\uFE76-\uFEFC\uFEFD-\uFEFE'

};

var REGEX_STRONG = new RegExp('[' + RANGE_BY_BIDI_TYPE.L + RANGE_BY_BIDI_TYPE.R + RANGE_BY_BIDI_TYPE.AL + ']');

var REGEX_RTL = new RegExp('[' + RANGE_BY_BIDI_TYPE.R + RANGE_BY_BIDI_TYPE.AL + ']');

/**
 * Returns the first strong character (has Bidi_Class value of L, R, or AL).
 *
 * @param str  A text block; e.g. paragraph, table cell, tag
 * @return     A character with strong bidi direction, or null if not found
 */
function firstStrongChar(str) {
  var match = REGEX_STRONG.exec(str);
  return match == null ? null : match[0];
}

/**
 * Returns the direction of a block of text, based on the direction of its
 * first strong character (has Bidi_Class value of L, R, or AL).
 *
 * @param str  A text block; e.g. paragraph, table cell, tag
 * @return     The resolved direction
 */
function firstStrongCharDir(str) {
  var strongChar = firstStrongChar(str);
  if (strongChar == null) {
    return UnicodeBidiDirection_1.NEUTRAL;
  }
  return REGEX_RTL.exec(strongChar) ? UnicodeBidiDirection_1.RTL : UnicodeBidiDirection_1.LTR;
}

/**
 * Returns the direction of a block of text, based on the direction of its
 * first strong character (has Bidi_Class value of L, R, or AL), or a fallback
 * direction, if no strong character is found.
 *
 * This function is supposed to be used in respect to Higher-Level Protocol
 * rule HL1. (http://www.unicode.org/reports/tr9/#HL1)
 *
 * @param str       A text block; e.g. paragraph, table cell, tag
 * @param fallback  Fallback direction, used if no strong direction detected
 *                  for the block (default = NEUTRAL)
 * @return          The resolved direction
 */
function resolveBlockDir(str, fallback) {
  fallback = fallback || UnicodeBidiDirection_1.NEUTRAL;
  if (!str.length) {
    return fallback;
  }
  var blockDir = firstStrongCharDir(str);
  return blockDir === UnicodeBidiDirection_1.NEUTRAL ? fallback : blockDir;
}

/**
 * Returns the direction of a block of text, based on the direction of its
 * first strong character (has Bidi_Class value of L, R, or AL), or a fallback
 * direction, if no strong character is found.
 *
 * NOTE: This function is similar to resolveBlockDir(), but uses the global
 * direction as the fallback, so it *always* returns a Strong direction,
 * making it useful for integration in places that you need to make the final
 * decision, like setting some CSS class.
 *
 * This function is supposed to be used in respect to Higher-Level Protocol
 * rule HL1. (http://www.unicode.org/reports/tr9/#HL1)
 *
 * @param str             A text block; e.g. paragraph, table cell
 * @param strongFallback  Fallback direction, used if no strong direction
 *                        detected for the block (default = global direction)
 * @return                The resolved Strong direction
 */
function getDirection(str, strongFallback) {
  if (!strongFallback) {
    strongFallback = UnicodeBidiDirection_1.getGlobalDir();
  }
  !UnicodeBidiDirection_1.isStrong(strongFallback) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Fallback direction must be a strong direction') : invariant_1(false) : void 0;
  return resolveBlockDir(str, strongFallback);
}

/**
 * Returns true if getDirection(arguments...) returns LTR.
 *
 * @param str             A text block; e.g. paragraph, table cell
 * @param strongFallback  Fallback direction, used if no strong direction
 *                        detected for the block (default = global direction)
 * @return                True if the resolved direction is LTR
 */
function isDirectionLTR(str, strongFallback) {
  return getDirection(str, strongFallback) === UnicodeBidiDirection_1.LTR;
}

/**
 * Returns true if getDirection(arguments...) returns RTL.
 *
 * @param str             A text block; e.g. paragraph, table cell
 * @param strongFallback  Fallback direction, used if no strong direction
 *                        detected for the block (default = global direction)
 * @return                True if the resolved direction is RTL
 */
function isDirectionRTL(str, strongFallback) {
  return getDirection(str, strongFallback) === UnicodeBidiDirection_1.RTL;
}

var UnicodeBidi = {
  firstStrongChar: firstStrongChar,
  firstStrongCharDir: firstStrongCharDir,
  resolveBlockDir: resolveBlockDir,
  getDirection: getDirection,
  isDirectionLTR: isDirectionLTR,
  isDirectionRTL: isDirectionRTL
};

var UnicodeBidi_1 = UnicodeBidi;

function _classCallCheck$6(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }






var UnicodeBidiService = function () {

  /**
   * Stateful class for paragraph direction detection
   *
   * @param defaultDir  Default direction of the service
   */
  function UnicodeBidiService(defaultDir) {
    _classCallCheck$6(this, UnicodeBidiService);

    if (!defaultDir) {
      defaultDir = UnicodeBidiDirection_1.getGlobalDir();
    } else {
      !UnicodeBidiDirection_1.isStrong(defaultDir) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Default direction must be a strong direction (LTR or RTL)') : invariant_1(false) : void 0;
    }
    this._defaultDir = defaultDir;
    this.reset();
  }

  /**
   * Reset the internal state
   *
   * Instead of creating a new instance, you can just reset() your instance
   * everytime you start a new loop.
   */


  UnicodeBidiService.prototype.reset = function reset() {
    this._lastDir = this._defaultDir;
  };

  /**
   * Returns the direction of a block of text, and remembers it as the
   * fall-back direction for the next paragraph.
   *
   * @param str  A text block, e.g. paragraph, table cell, tag
   * @return     The resolved direction
   */


  UnicodeBidiService.prototype.getDirection = function getDirection(str) {
    this._lastDir = UnicodeBidi_1.getDirection(str, this._lastDir);
    return this._lastDir;
  };

  return UnicodeBidiService;
}();

var UnicodeBidiService_1 = UnicodeBidiService;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * 
 */

var nullthrows = function nullthrows(x) {
  if (x != null) {
    return x;
  }
  throw new Error("Got unexpected null or undefined");
};

var nullthrows_1 = nullthrows;

var OrderedMap$2 = immutable.OrderedMap;


var bidiService;

var EditorBidiService = {
  getDirectionMap: function getDirectionMap(content, prevBidiMap) {
    if (!bidiService) {
      bidiService = new UnicodeBidiService_1();
    } else {
      bidiService.reset();
    }

    var blockMap = content.getBlockMap();
    var nextBidi = blockMap.valueSeq().map(function (block) {
      return nullthrows_1(bidiService).getDirection(block.getText());
    });
    var bidiMap = OrderedMap$2(blockMap.keySeq().zip(nextBidi));

    if (prevBidiMap != null && immutable.is(prevBidiMap, bidiMap)) {
      return prevBidiMap;
    }

    return bidiMap;
  }
};

var EditorBidiService_1 = EditorBidiService;

var _extends$1 = objectAssign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _classCallCheck$7(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }







var OrderedSet$4 = immutable.OrderedSet,
    Record$7 = immutable.Record,
    Stack = immutable.Stack;


var defaultRecord$5 = {
  allowUndo: true,
  currentContent: null,
  decorator: null,
  directionMap: null,
  forceSelection: false,
  inCompositionMode: false,
  inlineStyleOverride: null,
  lastChangeType: null,
  nativelyRenderedContent: null,
  redoStack: Stack(),
  selection: null,
  treeMap: null,
  undoStack: Stack()
};

var EditorStateRecord = Record$7(defaultRecord$5);

var EditorState = function () {
  EditorState.createEmpty = function createEmpty(decorator) {
    return EditorState.createWithContent(ContentState_1.createFromText(''), decorator);
  };

  EditorState.createWithContent = function createWithContent(contentState, decorator) {
    var firstKey = contentState.getBlockMap().first().getKey();
    return EditorState.create({
      currentContent: contentState,
      undoStack: Stack(),
      redoStack: Stack(),
      decorator: decorator || null,
      selection: SelectionState_1.createEmpty(firstKey)
    });
  };

  EditorState.create = function create(config) {
    var currentContent = config.currentContent,
        decorator = config.decorator;

    var recordConfig = _extends$1({}, config, {
      treeMap: generateNewTreeMap(currentContent, decorator),
      directionMap: EditorBidiService_1.getDirectionMap(currentContent)
    });
    return new EditorState(new EditorStateRecord(recordConfig));
  };

  EditorState.set = function set(editorState, put) {
    var map = editorState.getImmutable().withMutations(function (state) {
      var existingDecorator = state.get('decorator');
      var decorator = existingDecorator;
      if (put.decorator === null) {
        decorator = null;
      } else if (put.decorator) {
        decorator = put.decorator;
      }

      var newContent = put.currentContent || editorState.getCurrentContent();

      if (decorator !== existingDecorator) {
        var treeMap = state.get('treeMap');
        var newTreeMap;
        if (decorator && existingDecorator) {
          newTreeMap = regenerateTreeForNewDecorator(newContent, newContent.getBlockMap(), treeMap, decorator, existingDecorator);
        } else {
          newTreeMap = generateNewTreeMap(newContent, decorator);
        }

        state.merge({
          decorator: decorator,
          treeMap: newTreeMap,
          nativelyRenderedContent: null
        });
        return;
      }

      var existingContent = editorState.getCurrentContent();
      if (newContent !== existingContent) {
        state.set('treeMap', regenerateTreeForNewBlocks(editorState, newContent.getBlockMap(), newContent.getEntityMap(), decorator));
      }

      state.merge(put);
    });

    return new EditorState(map);
  };

  EditorState.prototype.toJS = function toJS() {
    return this.getImmutable().toJS();
  };

  EditorState.prototype.getAllowUndo = function getAllowUndo() {
    return this.getImmutable().get('allowUndo');
  };

  EditorState.prototype.getCurrentContent = function getCurrentContent() {
    return this.getImmutable().get('currentContent');
  };

  EditorState.prototype.getUndoStack = function getUndoStack() {
    return this.getImmutable().get('undoStack');
  };

  EditorState.prototype.getRedoStack = function getRedoStack() {
    return this.getImmutable().get('redoStack');
  };

  EditorState.prototype.getSelection = function getSelection() {
    return this.getImmutable().get('selection');
  };

  EditorState.prototype.getDecorator = function getDecorator() {
    return this.getImmutable().get('decorator');
  };

  EditorState.prototype.isInCompositionMode = function isInCompositionMode() {
    return this.getImmutable().get('inCompositionMode');
  };

  EditorState.prototype.mustForceSelection = function mustForceSelection() {
    return this.getImmutable().get('forceSelection');
  };

  EditorState.prototype.getNativelyRenderedContent = function getNativelyRenderedContent() {
    return this.getImmutable().get('nativelyRenderedContent');
  };

  EditorState.prototype.getLastChangeType = function getLastChangeType() {
    return this.getImmutable().get('lastChangeType');
  };

  /**
   * While editing, the user may apply inline style commands with a collapsed
   * cursor, intending to type text that adopts the specified style. In this
   * case, we track the specified style as an "override" that takes precedence
   * over the inline style of the text adjacent to the cursor.
   *
   * If null, there is no override in place.
   */


  EditorState.prototype.getInlineStyleOverride = function getInlineStyleOverride() {
    return this.getImmutable().get('inlineStyleOverride');
  };

  EditorState.setInlineStyleOverride = function setInlineStyleOverride(editorState, inlineStyleOverride) {
    return EditorState.set(editorState, { inlineStyleOverride: inlineStyleOverride });
  };

  /**
   * Get the appropriate inline style for the editor state. If an
   * override is in place, use it. Otherwise, the current style is
   * based on the location of the selection state.
   */


  EditorState.prototype.getCurrentInlineStyle = function getCurrentInlineStyle() {
    var override = this.getInlineStyleOverride();
    if (override != null) {
      return override;
    }

    var content = this.getCurrentContent();
    var selection = this.getSelection();

    if (selection.isCollapsed()) {
      return getInlineStyleForCollapsedSelection(content, selection);
    }

    return getInlineStyleForNonCollapsedSelection(content, selection);
  };

  EditorState.prototype.getBlockTree = function getBlockTree(blockKey) {
    return this.getImmutable().getIn(['treeMap', blockKey]);
  };

  EditorState.prototype.isSelectionAtStartOfContent = function isSelectionAtStartOfContent() {
    var firstKey = this.getCurrentContent().getBlockMap().first().getKey();
    return this.getSelection().hasEdgeWithin(firstKey, 0, 0);
  };

  EditorState.prototype.isSelectionAtEndOfContent = function isSelectionAtEndOfContent() {
    var content = this.getCurrentContent();
    var blockMap = content.getBlockMap();
    var last = blockMap.last();
    var end = last.getLength();
    return this.getSelection().hasEdgeWithin(last.getKey(), end, end);
  };

  EditorState.prototype.getDirectionMap = function getDirectionMap() {
    return this.getImmutable().get('directionMap');
  };

  /**
   * Incorporate native DOM selection changes into the EditorState. This
   * method can be used when we simply want to accept whatever the DOM
   * has given us to represent selection, and we do not need to re-render
   * the editor.
   *
   * To forcibly move the DOM selection, see `EditorState.forceSelection`.
   */


  EditorState.acceptSelection = function acceptSelection(editorState, selection) {
    return updateSelection(editorState, selection, false);
  };

  /**
   * At times, we need to force the DOM selection to be where we
   * need it to be. This can occur when the anchor or focus nodes
   * are non-text nodes, for instance. In this case, we want to trigger
   * a re-render of the editor, which in turn forces selection into
   * the correct place in the DOM. The `forceSelection` method
   * accomplishes this.
   *
   * This method should be used in cases where you need to explicitly
   * move the DOM selection from one place to another without a change
   * in ContentState.
   */


  EditorState.forceSelection = function forceSelection(editorState, selection) {
    if (!selection.getHasFocus()) {
      selection = selection.set('hasFocus', true);
    }
    return updateSelection(editorState, selection, true);
  };

  /**
   * Move selection to the end of the editor without forcing focus.
   */


  EditorState.moveSelectionToEnd = function moveSelectionToEnd(editorState) {
    var content = editorState.getCurrentContent();
    var lastBlock = content.getLastBlock();
    var lastKey = lastBlock.getKey();
    var length = lastBlock.getLength();

    return EditorState.acceptSelection(editorState, new SelectionState_1({
      anchorKey: lastKey,
      anchorOffset: length,
      focusKey: lastKey,
      focusOffset: length,
      isBackward: false
    }));
  };

  /**
   * Force focus to the end of the editor. This is useful in scenarios
   * where we want to programmatically focus the input and it makes sense
   * to allow the user to continue working seamlessly.
   */


  EditorState.moveFocusToEnd = function moveFocusToEnd(editorState) {
    var afterSelectionMove = EditorState.moveSelectionToEnd(editorState);
    return EditorState.forceSelection(afterSelectionMove, afterSelectionMove.getSelection());
  };

  /**
   * Push the current ContentState onto the undo stack if it should be
   * considered a boundary state, and set the provided ContentState as the
   * new current content.
   */


  EditorState.push = function push(editorState, contentState, changeType) {
    if (editorState.getCurrentContent() === contentState) {
      return editorState;
    }

    var forceSelection = changeType !== 'insert-characters';
    var directionMap = EditorBidiService_1.getDirectionMap(contentState, editorState.getDirectionMap());

    if (!editorState.getAllowUndo()) {
      return EditorState.set(editorState, {
        currentContent: contentState,
        directionMap: directionMap,
        lastChangeType: changeType,
        selection: contentState.getSelectionAfter(),
        forceSelection: forceSelection,
        inlineStyleOverride: null
      });
    }

    var selection = editorState.getSelection();
    var currentContent = editorState.getCurrentContent();
    var undoStack = editorState.getUndoStack();
    var newContent = contentState;

    if (selection !== currentContent.getSelectionAfter() || mustBecomeBoundary(editorState, changeType)) {
      undoStack = undoStack.push(currentContent);
      newContent = newContent.set('selectionBefore', selection);
    } else if (changeType === 'insert-characters' || changeType === 'backspace-character' || changeType === 'delete-character') {
      // Preserve the previous selection.
      newContent = newContent.set('selectionBefore', currentContent.getSelectionBefore());
    }

    var inlineStyleOverride = editorState.getInlineStyleOverride();

    // Don't discard inline style overrides for the following change types:
    var overrideChangeTypes = ['adjust-depth', 'change-block-type', 'split-block'];

    if (overrideChangeTypes.indexOf(changeType) === -1) {
      inlineStyleOverride = null;
    }

    var editorStateChanges = {
      currentContent: newContent,
      directionMap: directionMap,
      undoStack: undoStack,
      redoStack: Stack(),
      lastChangeType: changeType,
      selection: contentState.getSelectionAfter(),
      forceSelection: forceSelection,
      inlineStyleOverride: inlineStyleOverride
    };

    return EditorState.set(editorState, editorStateChanges);
  };

  /**
   * Make the top ContentState in the undo stack the new current content and
   * push the current content onto the redo stack.
   */


  EditorState.undo = function undo(editorState) {
    if (!editorState.getAllowUndo()) {
      return editorState;
    }

    var undoStack = editorState.getUndoStack();
    var newCurrentContent = undoStack.peek();
    if (!newCurrentContent) {
      return editorState;
    }

    var currentContent = editorState.getCurrentContent();
    var directionMap = EditorBidiService_1.getDirectionMap(newCurrentContent, editorState.getDirectionMap());

    return EditorState.set(editorState, {
      currentContent: newCurrentContent,
      directionMap: directionMap,
      undoStack: undoStack.shift(),
      redoStack: editorState.getRedoStack().push(currentContent),
      forceSelection: true,
      inlineStyleOverride: null,
      lastChangeType: 'undo',
      nativelyRenderedContent: null,
      selection: currentContent.getSelectionBefore()
    });
  };

  /**
   * Make the top ContentState in the redo stack the new current content and
   * push the current content onto the undo stack.
   */


  EditorState.redo = function redo(editorState) {
    if (!editorState.getAllowUndo()) {
      return editorState;
    }

    var redoStack = editorState.getRedoStack();
    var newCurrentContent = redoStack.peek();
    if (!newCurrentContent) {
      return editorState;
    }

    var currentContent = editorState.getCurrentContent();
    var directionMap = EditorBidiService_1.getDirectionMap(newCurrentContent, editorState.getDirectionMap());

    return EditorState.set(editorState, {
      currentContent: newCurrentContent,
      directionMap: directionMap,
      undoStack: editorState.getUndoStack().push(currentContent),
      redoStack: redoStack.shift(),
      forceSelection: true,
      inlineStyleOverride: null,
      lastChangeType: 'redo',
      nativelyRenderedContent: null,
      selection: newCurrentContent.getSelectionAfter()
    });
  };

  /**
   * Not for public consumption.
   */


  function EditorState(immutable) {
    _classCallCheck$7(this, EditorState);

    this._immutable = immutable;
  }

  /**
   * Not for public consumption.
   */


  EditorState.prototype.getImmutable = function getImmutable() {
    return this._immutable;
  };

  return EditorState;
}();

/**
 * Set the supplied SelectionState as the new current selection, and set
 * the `force` flag to trigger manual selection placement by the view.
 */


function updateSelection(editorState, selection, forceSelection) {
  return EditorState.set(editorState, {
    selection: selection,
    forceSelection: forceSelection,
    nativelyRenderedContent: null,
    inlineStyleOverride: null
  });
}

/**
 * Regenerate the entire tree map for a given ContentState and decorator.
 * Returns an OrderedMap that maps all available ContentBlock objects.
 */
function generateNewTreeMap(contentState, decorator) {
  return contentState.getBlockMap().map(function (block) {
    return BlockTree_1.generate(contentState, block, decorator);
  }).toOrderedMap();
}

/**
 * Regenerate tree map objects for all ContentBlocks that have changed
 * between the current editorState and newContent. Returns an OrderedMap
 * with only changed regenerated tree map objects.
 */
function regenerateTreeForNewBlocks(editorState, newBlockMap, newEntityMap, decorator) {
  var contentState = editorState.getCurrentContent().set('entityMap', newEntityMap);
  var prevBlockMap = contentState.getBlockMap();
  var prevTreeMap = editorState.getImmutable().get('treeMap');
  return prevTreeMap.merge(newBlockMap.toSeq().filter(function (block, key) {
    return block !== prevBlockMap.get(key);
  }).map(function (block) {
    return BlockTree_1.generate(contentState, block, decorator);
  }));
}

/**
 * Generate tree map objects for a new decorator object, preserving any
 * decorations that are unchanged from the previous decorator.
 *
 * Note that in order for this to perform optimally, decoration Lists for
 * decorators should be preserved when possible to allow for direct immutable
 * List comparison.
 */
function regenerateTreeForNewDecorator(content, blockMap, previousTreeMap, decorator, existingDecorator) {
  return previousTreeMap.merge(blockMap.toSeq().filter(function (block) {
    return decorator.getDecorations(block, content) !== existingDecorator.getDecorations(block, content);
  }).map(function (block) {
    return BlockTree_1.generate(content, block, decorator);
  }));
}

/**
 * Return whether a change should be considered a boundary state, given
 * the previous change type. Allows us to discard potential boundary states
 * during standard typing or deletion behavior.
 */
function mustBecomeBoundary(editorState, changeType) {
  var lastChangeType = editorState.getLastChangeType();
  return changeType !== lastChangeType || changeType !== 'insert-characters' && changeType !== 'backspace-character' && changeType !== 'delete-character';
}

function getInlineStyleForCollapsedSelection(content, selection) {
  var startKey = selection.getStartKey();
  var startOffset = selection.getStartOffset();
  var startBlock = content.getBlockForKey(startKey);

  // If the cursor is not at the start of the block, look backward to
  // preserve the style of the preceding character.
  if (startOffset > 0) {
    return startBlock.getInlineStyleAt(startOffset - 1);
  }

  // The caret is at position zero in this block. If the block has any
  // text at all, use the style of the first character.
  if (startBlock.getLength()) {
    return startBlock.getInlineStyleAt(0);
  }

  // Otherwise, look upward in the document to find the closest character.
  return lookUpwardForInlineStyle(content, startKey);
}

function getInlineStyleForNonCollapsedSelection(content, selection) {
  var startKey = selection.getStartKey();
  var startOffset = selection.getStartOffset();
  var startBlock = content.getBlockForKey(startKey);

  // If there is a character just inside the selection, use its style.
  if (startOffset < startBlock.getLength()) {
    return startBlock.getInlineStyleAt(startOffset);
  }

  // Check if the selection at the end of a non-empty block. Use the last
  // style in the block.
  if (startOffset > 0) {
    return startBlock.getInlineStyleAt(startOffset - 1);
  }

  // Otherwise, look upward in the document to find the closest character.
  return lookUpwardForInlineStyle(content, startKey);
}

function lookUpwardForInlineStyle(content, fromKey) {
  var lastNonEmpty = content.getBlockMap().reverse().skipUntil(function (_, k) {
    return k === fromKey;
  }).skip(1).skipUntil(function (block, _) {
    return block.getLength();
  }).first();

  if (lastNonEmpty) return lastNonEmpty.getInlineStyleAt(lastNonEmpty.getLength() - 1);
  return OrderedSet$4();
}

var EditorState_1 = EditorState;

var OrderedMap$3 = immutable.OrderedMap,
    List$7 = immutable.List;


var transformBlock$2 = function transformBlock(key, blockMap, func) {
  if (!key) {
    return;
  }

  var block = blockMap.get(key);

  if (!block) {
    return;
  }

  blockMap.set(key, func(block));
};

var updateBlockMapLinks$3 = function updateBlockMapLinks(blockMap, originalBlockToBeMoved, originalTargetBlock, insertionMode, isExperimentalTreeBlock) {
  if (!isExperimentalTreeBlock) {
    return blockMap;
  }
  // possible values of 'insertionMode' are: 'after', 'before'
  var isInsertedAfterTarget = insertionMode === 'after';

  var originalBlockKey = originalBlockToBeMoved.getKey();
  var originalTargetKey = originalTargetBlock.getKey();
  var originalParentKey = originalBlockToBeMoved.getParentKey();
  var originalNextSiblingKey = originalBlockToBeMoved.getNextSiblingKey();
  var originalPrevSiblingKey = originalBlockToBeMoved.getPrevSiblingKey();
  var newParentKey = originalTargetBlock.getParentKey();
  var newNextSiblingKey = isInsertedAfterTarget ? originalTargetBlock.getNextSiblingKey() : originalTargetKey;
  var newPrevSiblingKey = isInsertedAfterTarget ? originalTargetKey : originalTargetBlock.getPrevSiblingKey();

  return blockMap.withMutations(function (blocks) {
    // update old parent
    transformBlock$2(originalParentKey, blocks, function (block) {
      var parentChildrenList = block.getChildKeys();
      return block.merge({
        children: parentChildrenList['delete'](parentChildrenList.indexOf(originalBlockKey))
      });
    });

    // update old prev
    transformBlock$2(originalPrevSiblingKey, blocks, function (block) {
      return block.merge({
        nextSibling: originalNextSiblingKey
      });
    });

    // update old next
    transformBlock$2(originalNextSiblingKey, blocks, function (block) {
      return block.merge({
        prevSibling: originalPrevSiblingKey
      });
    });

    // update new next
    transformBlock$2(newNextSiblingKey, blocks, function (block) {
      return block.merge({
        prevSibling: originalBlockKey
      });
    });

    // update new prev
    transformBlock$2(newPrevSiblingKey, blocks, function (block) {
      return block.merge({
        nextSibling: originalBlockKey
      });
    });

    // update new parent
    transformBlock$2(newParentKey, blocks, function (block) {
      var newParentChildrenList = block.getChildKeys();
      var targetBlockIndex = newParentChildrenList.indexOf(originalTargetKey);

      var insertionIndex = isInsertedAfterTarget ? targetBlockIndex + 1 : targetBlockIndex !== 0 ? targetBlockIndex - 1 : 0;

      var newChildrenArray = newParentChildrenList.toArray();
      newChildrenArray.splice(insertionIndex, 0, originalBlockKey);

      return block.merge({
        children: List$7(newChildrenArray)
      });
    });

    // update block
    transformBlock$2(originalBlockKey, blocks, function (block) {
      return block.merge({
        nextSibling: newNextSiblingKey,
        prevSibling: newPrevSiblingKey,
        parent: newParentKey
      });
    });
  });
};

var moveBlockInContentState = function moveBlockInContentState(contentState, blockToBeMoved, targetBlock, insertionMode) {
  !(insertionMode !== 'replace') ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Replacing blocks is not supported.') : invariant_1(false) : void 0;

  var targetKey = targetBlock.getKey();
  var blockKey = blockToBeMoved.getKey();

  !(blockKey !== targetKey) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Block cannot be moved next to itself.') : invariant_1(false) : void 0;

  var blockMap = contentState.getBlockMap();
  var isExperimentalTreeBlock = blockToBeMoved instanceof ContentBlockNode_1;

  var blocksToBeMoved = [blockToBeMoved];
  var blockMapWithoutBlocksToBeMoved = blockMap['delete'](blockKey);

  if (isExperimentalTreeBlock) {
    blocksToBeMoved = [];
    blockMapWithoutBlocksToBeMoved = blockMap.withMutations(function (blocks) {
      var nextSiblingKey = blockToBeMoved.getNextSiblingKey();
      var nextDelimiterBlockKey = getNextDelimiterBlockKey_1(blockToBeMoved, blocks);

      blocks.toSeq().skipUntil(function (block) {
        return block.getKey() === blockKey;
      }).takeWhile(function (block) {
        var key = block.getKey();
        var isBlockToBeMoved = key === blockKey;
        var hasNextSiblingAndIsNotNextSibling = nextSiblingKey && key !== nextSiblingKey;
        var doesNotHaveNextSiblingAndIsNotDelimiter = !nextSiblingKey && block.getParentKey() && (!nextDelimiterBlockKey || key !== nextDelimiterBlockKey);

        return !!(isBlockToBeMoved || hasNextSiblingAndIsNotNextSibling || doesNotHaveNextSiblingAndIsNotDelimiter);
      }).forEach(function (block) {
        blocksToBeMoved.push(block);
        blocks['delete'](block.getKey());
      });
    });
  }

  var blocksBefore = blockMapWithoutBlocksToBeMoved.toSeq().takeUntil(function (v) {
    return v === targetBlock;
  });

  var blocksAfter = blockMapWithoutBlocksToBeMoved.toSeq().skipUntil(function (v) {
    return v === targetBlock;
  }).skip(1);

  var slicedBlocks = blocksToBeMoved.map(function (block) {
    return [block.getKey(), block];
  });

  var newBlocks = OrderedMap$3();

  if (insertionMode === 'before') {
    var blockBefore = contentState.getBlockBefore(targetKey);

    !(!blockBefore || blockBefore.getKey() !== blockToBeMoved.getKey()) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Block cannot be moved next to itself.') : invariant_1(false) : void 0;

    newBlocks = blocksBefore.concat([].concat(slicedBlocks, [[targetKey, targetBlock]]), blocksAfter).toOrderedMap();
  } else if (insertionMode === 'after') {
    var blockAfter = contentState.getBlockAfter(targetKey);

    !(!blockAfter || blockAfter.getKey() !== blockKey) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Block cannot be moved next to itself.') : invariant_1(false) : void 0;

    newBlocks = blocksBefore.concat([[targetKey, targetBlock]].concat(slicedBlocks), blocksAfter).toOrderedMap();
  }

  return contentState.merge({
    blockMap: updateBlockMapLinks$3(newBlocks, blockToBeMoved, targetBlock, insertionMode, isExperimentalTreeBlock),
    selectionBefore: contentState.getSelectionAfter(),
    selectionAfter: contentState.getSelectionAfter().merge({
      anchorKey: blockKey,
      focusKey: blockKey
    })
  });
};

var moveBlockInContentState_1 = moveBlockInContentState;

var ContentBlockRecord$1 =  ContentBlock_1;

var List$8 = immutable.List,
    Repeat$5 = immutable.Repeat;


var AtomicBlockUtils = {
  insertAtomicBlock: function insertAtomicBlock(editorState, entityKey, character) {
    var contentState = editorState.getCurrentContent();
    var selectionState = editorState.getSelection();

    var afterRemoval = DraftModifier_1.removeRange(contentState, selectionState, 'backward');

    var targetSelection = afterRemoval.getSelectionAfter();
    var afterSplit = DraftModifier_1.splitBlock(afterRemoval, targetSelection);
    var insertionTarget = afterSplit.getSelectionAfter();

    var asAtomicBlock = DraftModifier_1.setBlockType(afterSplit, insertionTarget, 'atomic');

    var charData = CharacterMetadata_1.create({ entity: entityKey });

    var atomicBlockConfig = {
      key: generateRandomKey_1(),
      type: 'atomic',
      text: character,
      characterList: List$8(Repeat$5(charData, character.length))
    };

    var atomicDividerBlockConfig = {
      key: generateRandomKey_1(),
      type: 'unstyled'
    };

    var fragmentArray = [new ContentBlockRecord$1(atomicBlockConfig), new ContentBlockRecord$1(atomicDividerBlockConfig)];

    var fragment = BlockMapBuilder_1.createFromArray(fragmentArray);

    var withAtomicBlock = DraftModifier_1.replaceWithFragment(asAtomicBlock, insertionTarget, fragment);

    var newContent = withAtomicBlock.merge({
      selectionBefore: selectionState,
      selectionAfter: withAtomicBlock.getSelectionAfter().set('hasFocus', true)
    });

    return EditorState_1.push(editorState, newContent, 'insert-fragment');
  },

  moveAtomicBlock: function moveAtomicBlock(editorState, atomicBlock, targetRange, insertionMode) {
    var contentState = editorState.getCurrentContent();
    var selectionState = editorState.getSelection();

    var withMovedAtomicBlock = void 0;

    if (insertionMode === 'before' || insertionMode === 'after') {
      var targetBlock = contentState.getBlockForKey(insertionMode === 'before' ? targetRange.getStartKey() : targetRange.getEndKey());

      withMovedAtomicBlock = moveBlockInContentState_1(contentState, atomicBlock, targetBlock, insertionMode);
    } else {
      var afterRemoval = DraftModifier_1.removeRange(contentState, targetRange, 'backward');

      var selectionAfterRemoval = afterRemoval.getSelectionAfter();
      var _targetBlock = afterRemoval.getBlockForKey(selectionAfterRemoval.getFocusKey());

      if (selectionAfterRemoval.getStartOffset() === 0) {
        withMovedAtomicBlock = moveBlockInContentState_1(afterRemoval, atomicBlock, _targetBlock, 'before');
      } else if (selectionAfterRemoval.getEndOffset() === _targetBlock.getLength()) {
        withMovedAtomicBlock = moveBlockInContentState_1(afterRemoval, atomicBlock, _targetBlock, 'after');
      } else {
        var afterSplit = DraftModifier_1.splitBlock(afterRemoval, selectionAfterRemoval);

        var selectionAfterSplit = afterSplit.getSelectionAfter();
        var _targetBlock2 = afterSplit.getBlockForKey(selectionAfterSplit.getFocusKey());

        withMovedAtomicBlock = moveBlockInContentState_1(afterSplit, atomicBlock, _targetBlock2, 'before');
      }
    }

    var newContent = withMovedAtomicBlock.merge({
      selectionBefore: selectionState,
      selectionAfter: withMovedAtomicBlock.getSelectionAfter().set('hasFocus', true)
    });

    return EditorState_1.push(editorState, newContent, 'move-block');
  }
};

var AtomicBlockUtils_1 = AtomicBlockUtils;

function _classCallCheck$8(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }



var List$9 = immutable.List;


var DELIMITER = '.';

/**
 * A CompositeDraftDecorator traverses through a list of DraftDecorator
 * instances to identify sections of a ContentBlock that should be rendered
 * in a "decorated" manner. For example, hashtags, mentions, and links may
 * be intended to stand out visually, be rendered as anchors, etc.
 *
 * The list of decorators supplied to the constructor will be used in the
 * order they are provided. This allows the caller to specify a priority for
 * string matching, in case of match collisions among decorators.
 *
 * For instance, I may have a link with a `#` in its text. Though this section
 * of text may match our hashtag decorator, it should not be treated as a
 * hashtag. I should therefore list my link DraftDecorator
 * before my hashtag DraftDecorator when constructing this composite
 * decorator instance.
 *
 * Thus, when a collision like this is encountered, the earlier match is
 * preserved and the new match is discarded.
 */

var CompositeDraftDecorator = function () {
  function CompositeDraftDecorator(decorators) {
    _classCallCheck$8(this, CompositeDraftDecorator);

    // Copy the decorator array, since we use this array order to determine
    // precedence of decoration matching. If the array is mutated externally,
    // we don't want to be affected here.
    this._decorators = decorators.slice();
  }

  CompositeDraftDecorator.prototype.getDecorations = function getDecorations(block, contentState) {
    var decorations = Array(block.getText().length).fill(null);

    this._decorators.forEach(function ( /*object*/decorator, /*number*/ii) {
      var counter = 0;
      var strategy = decorator.strategy;
      var callback = function callback( /*number*/start, /*number*/end) {
        // Find out if any of our matching range is already occupied
        // by another decorator. If so, discard the match. Otherwise, store
        // the component key for rendering.
        if (canOccupySlice(decorations, start, end)) {
          occupySlice(decorations, start, end, ii + DELIMITER + counter);
          counter++;
        }
      };
      strategy(block, callback, contentState);
    });

    return List$9(decorations);
  };

  CompositeDraftDecorator.prototype.getComponentForKey = function getComponentForKey(key) {
    var componentKey = parseInt(key.split(DELIMITER)[0], 10);
    return this._decorators[componentKey].component;
  };

  CompositeDraftDecorator.prototype.getPropsForKey = function getPropsForKey(key) {
    var componentKey = parseInt(key.split(DELIMITER)[0], 10);
    return this._decorators[componentKey].props;
  };

  return CompositeDraftDecorator;
}();

/**
 * Determine whether we can occupy the specified slice of the decorations
 * array.
 */


function canOccupySlice(decorations, start, end) {
  for (var ii = start; ii < end; ii++) {
    if (decorations[ii] != null) {
      return false;
    }
  }
  return true;
}

/**
 * Splice the specified component into our decoration array at the desired
 * range.
 */
function occupySlice(targetArr, start, end, componentKey) {
  for (var ii = start; ii < end; ii++) {
    targetArr[ii] = componentKey;
  }
}

var CompositeDraftDecorator_1 = CompositeDraftDecorator;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */

/**
 * This function is used to mark string literals representing CSS class names
 * so that they can be transformed statically. This allows for modularization
 * and minification of CSS class names.
 *
 * In static_upstream, this function is actually implemented, but it should
 * eventually be replaced with something more descriptive, and the transform
 * that is used in the main stack should be ported for use elsewhere.
 *
 * @param string|object className to modularize, or an object of key/values.
 *                      In the object case, the values are conditions that
 *                      determine if the className keys should be included.
 * @param [string ...]  Variable list of classNames in the string case.
 * @return string       Renderable space-separated CSS className.
 */
function cx(classNames) {
  if (typeof classNames == 'object') {
    return Object.keys(classNames).filter(function (className) {
      return classNames[className];
    }).map(replace).join(' ');
  }
  return Array.prototype.map.call(arguments, replace).join(' ');
}

function replace(str) {
  return str.replace(/\//g, '-');
}

var cx_1 = cx;

var Map$9 = immutable.Map;





var UL_WRAP = React.createElement('ul', { className: cx_1('public/DraftStyleDefault/ul') });
var OL_WRAP = React.createElement('ol', { className: cx_1('public/DraftStyleDefault/ol') });
var PRE_WRAP = React.createElement('pre', { className: cx_1('public/DraftStyleDefault/pre') });

var DefaultDraftBlockRenderMap = Map$9({
  'header-one': {
    element: 'h1'
  },
  'header-two': {
    element: 'h2'
  },
  'header-three': {
    element: 'h3'
  },
  'header-four': {
    element: 'h4'
  },
  'header-five': {
    element: 'h5'
  },
  'header-six': {
    element: 'h6'
  },
  'unordered-list-item': {
    element: 'li',
    wrapper: UL_WRAP
  },
  'ordered-list-item': {
    element: 'li',
    wrapper: OL_WRAP
  },
  blockquote: {
    element: 'blockquote'
  },
  atomic: {
    element: 'figure'
  },
  'code-block': {
    element: 'pre',
    wrapper: PRE_WRAP
  },
  unstyled: {
    element: 'div',
    aliasedElements: ['p']
  }
});

var DefaultDraftBlockRenderMap_1 = DefaultDraftBlockRenderMap;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule DefaultDraftInlineStyle
 * @format
 * 
 */

var DefaultDraftInlineStyle = {
  BOLD: {
    fontWeight: 'bold'
  },

  CODE: {
    fontFamily: 'monospace',
    wordWrap: 'break-word'
  },

  ITALIC: {
    fontStyle: 'italic'
  },

  STRIKETHROUGH: {
    textDecoration: 'line-through'
  },

  UNDERLINE: {
    textDecoration: 'underline'
  }
};

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */

var Keys = {
  BACKSPACE: 8,
  TAB: 9,
  RETURN: 13,
  ALT: 18,
  ESC: 27,
  SPACE: 32,
  PAGE_UP: 33,
  PAGE_DOWN: 34,
  END: 35,
  HOME: 36,
  LEFT: 37,
  UP: 38,
  RIGHT: 39,
  DOWN: 40,
  DELETE: 46,
  COMMA: 188,
  PERIOD: 190,
  A: 65,
  Z: 90,
  ZERO: 48,
  NUMPAD_0: 96,
  NUMPAD_9: 105
};

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getEntityKeyForSelection
 * @format
 * 
 */

/**
 * Return the entity key that should be used when inserting text for the
 * specified target selection, only if the entity is `MUTABLE`. `IMMUTABLE`
 * and `SEGMENTED` entities should not be used for insertion behavior.
 */
function getEntityKeyForSelection(contentState, targetSelection) {
  var entityKey;

  if (targetSelection.isCollapsed()) {
    var key = targetSelection.getAnchorKey();
    var offset = targetSelection.getAnchorOffset();
    if (offset > 0) {
      entityKey = contentState.getBlockForKey(key).getEntityAt(offset - 1);
      if (entityKey !== contentState.getBlockForKey(key).getEntityAt(offset)) {
        return null;
      }
      return filterKey(contentState.getEntityMap(), entityKey);
    }
    return null;
  }

  var startKey = targetSelection.getStartKey();
  var startOffset = targetSelection.getStartOffset();
  var startBlock = contentState.getBlockForKey(startKey);

  entityKey = startOffset === startBlock.getLength() ? null : startBlock.getEntityAt(startOffset);

  return filterKey(contentState.getEntityMap(), entityKey);
}

/**
 * Determine whether an entity key corresponds to a `MUTABLE` entity. If so,
 * return it. If not, return null.
 */
function filterKey(entityMap, entityKey) {
  if (entityKey) {
    var entity = entityMap.__get(entityKey);
    return entity.getMutability() === 'MUTABLE' ? entityKey : null;
  }
  return null;
}

var getEntityKeyForSelection_1 = getEntityKeyForSelection;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule isEventHandled
 * @format
 * 
 */

/**
 * Utility method for determining whether or not the value returned
 * from a handler indicates that it was handled.
 */
function isEventHandled(value) {
  return value === 'handled' || value === true;
}

var isEventHandled_1 = isEventHandled;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule isSelectionAtLeafStart
 * @format
 * 
 */

function isSelectionAtLeafStart(editorState) {
  var selection = editorState.getSelection();
  var anchorKey = selection.getAnchorKey();
  var blockTree = editorState.getBlockTree(anchorKey);
  var offset = selection.getStartOffset();

  var isAtStart = false;

  blockTree.some(function (leafSet) {
    if (offset === leafSet.get('start')) {
      isAtStart = true;
      return true;
    }

    if (offset < leafSet.get('end')) {
      return leafSet.get('leaves').some(function (leaf) {
        var leafStart = leaf.get('start');
        if (offset === leafStart) {
          isAtStart = true;
          return true;
        }

        return false;
      });
    }

    return false;
  });

  return isAtStart;
}

var isSelectionAtLeafStart_1 = isSelectionAtLeafStart;

/**
 * Millisecond delay to allow `compositionstart` to fire again upon
 * `compositionend`.
 *
 * This is used for Korean input to ensure that typing can continue without
 * the editor trying to render too quickly. More specifically, Safari 7.1+
 * triggers `compositionstart` a little slower than Chrome/FF, which
 * leads to composed characters being resolved and re-render occurring
 * sooner than we want.
 */
var RESOLVE_DELAY = 20;

/**
 * A handful of variables used to track the current composition and its
 * resolution status. These exist at the module level because it is not
 * possible to have compositions occurring in multiple editors simultaneously,
 * and it simplifies state management with respect to the DraftEditor component.
 */
var resolved = false;
var stillComposing = false;
var textInputData = '';

var DraftEditorCompositionHandler = {
  onBeforeInput: function onBeforeInput(editor, e) {
    textInputData = (textInputData || '') + e.data;
  },

  /**
   * A `compositionstart` event has fired while we're still in composition
   * mode. Continue the current composition session to prevent a re-render.
   */
  onCompositionStart: function onCompositionStart(editor) {
    stillComposing = true;
  },

  /**
   * Attempt to end the current composition session.
   *
   * Defer handling because browser will still insert the chars into active
   * element after `compositionend`. If a `compositionstart` event fires
   * before `resolveComposition` executes, our composition session will
   * continue.
   *
   * The `resolved` flag is useful because certain IME interfaces fire the
   * `compositionend` event multiple times, thus queueing up multiple attempts
   * at handling the composition. Since handling the same composition event
   * twice could break the DOM, we only use the first event. Example: Arabic
   * Google Input Tools on Windows 8.1 fires `compositionend` three times.
   */
  onCompositionEnd: function onCompositionEnd(editor) {
    resolved = false;
    stillComposing = false;
    setTimeout(function () {
      if (!resolved) {
        DraftEditorCompositionHandler.resolveComposition(editor);
      }
    }, RESOLVE_DELAY);
  },

  /**
   * In Safari, keydown events may fire when committing compositions. If
   * the arrow keys are used to commit, prevent default so that the cursor
   * doesn't move, otherwise it will jump back noticeably on re-render.
   */
  onKeyDown: function onKeyDown(editor, e) {
    if (!stillComposing) {
      // If a keydown event is received after compositionend but before the
      // 20ms timer expires (ex: type option-E then backspace, or type A then
      // backspace in 2-Set Korean), we should immediately resolve the
      // composition and reinterpret the key press in edit mode.
      DraftEditorCompositionHandler.resolveComposition(editor);
      editor._onKeyDown(e);
      return;
    }
    if (e.which === Keys.RIGHT || e.which === Keys.LEFT) {
      e.preventDefault();
    }
  },

  /**
   * Keypress events may fire when committing compositions. In Firefox,
   * pressing RETURN commits the composition and inserts extra newline
   * characters that we do not want. `preventDefault` allows the composition
   * to be committed while preventing the extra characters.
   */
  onKeyPress: function onKeyPress(editor, e) {
    if (e.which === Keys.RETURN) {
      e.preventDefault();
    }
  },

  /**
   * Attempt to insert composed characters into the document.
   *
   * If we are still in a composition session, do nothing. Otherwise, insert
   * the characters into the document and terminate the composition session.
   *
   * If no characters were composed -- for instance, the user
   * deleted all composed characters and committed nothing new --
   * force a re-render. We also re-render when the composition occurs
   * at the beginning of a leaf, to ensure that if the browser has
   * created a new text node for the composition, we will discard it.
   *
   * Resetting innerHTML will move focus to the beginning of the editor,
   * so we update to force it back to the correct place.
   */
  resolveComposition: function resolveComposition(editor) {
    if (stillComposing) {
      return;
    }

    resolved = true;
    var composedChars = textInputData;
    textInputData = '';

    var editorState = EditorState_1.set(editor._latestEditorState, {
      inCompositionMode: false
    });

    var currentStyle = editorState.getCurrentInlineStyle();
    var entityKey = getEntityKeyForSelection_1(editorState.getCurrentContent(), editorState.getSelection());

    var mustReset = !composedChars || isSelectionAtLeafStart_1(editorState) || currentStyle.size > 0 || entityKey !== null;

    if (mustReset) {
      editor.restoreEditorDOM();
    }

    editor.exitCurrentMode();

    if (composedChars) {
      // If characters have been composed, re-rendering with the update
      // is sufficient to reset the editor.
      var contentState = DraftModifier_1.replaceText(editorState.getCurrentContent(), editorState.getSelection(), composedChars, currentStyle, entityKey);
      editor.update(EditorState_1.push(editorState, contentState, 'insert-characters'));
      return;
    }

    if (mustReset) {
      editor.update(EditorState_1.set(editorState, {
        nativelyRenderedContent: null,
        forceSelection: true
      }));
    }
  }
};

var DraftEditorCompositionHandler_1 = DraftEditorCompositionHandler;

var uaParser = createCommonjsModule(function (module, exports) {
/*!
 * UAParser.js v0.7.21
 * Lightweight JavaScript-based User-Agent string parser
 * https://github.com/faisalman/ua-parser-js
 *
 * Copyright © 2012-2019 Faisal Salman <f@faisalman.com>
 * Licensed under MIT License
 */

(function (window, undefined$1) {

    //////////////
    // Constants
    /////////////


    var LIBVERSION  = '0.7.21',
        EMPTY       = '',
        UNKNOWN     = '?',
        FUNC_TYPE   = 'function',
        OBJ_TYPE    = 'object',
        STR_TYPE    = 'string',
        MAJOR       = 'major', // deprecated
        MODEL       = 'model',
        NAME        = 'name',
        TYPE        = 'type',
        VENDOR      = 'vendor',
        VERSION     = 'version',
        ARCHITECTURE= 'architecture',
        CONSOLE     = 'console',
        MOBILE      = 'mobile',
        TABLET      = 'tablet',
        SMARTTV     = 'smarttv',
        WEARABLE    = 'wearable',
        EMBEDDED    = 'embedded';


    ///////////
    // Helper
    //////////


    var util = {
        extend : function (regexes, extensions) {
            var mergedRegexes = {};
            for (var i in regexes) {
                if (extensions[i] && extensions[i].length % 2 === 0) {
                    mergedRegexes[i] = extensions[i].concat(regexes[i]);
                } else {
                    mergedRegexes[i] = regexes[i];
                }
            }
            return mergedRegexes;
        },
        has : function (str1, str2) {
          if (typeof str1 === "string") {
            return str2.toLowerCase().indexOf(str1.toLowerCase()) !== -1;
          } else {
            return false;
          }
        },
        lowerize : function (str) {
            return str.toLowerCase();
        },
        major : function (version) {
            return typeof(version) === STR_TYPE ? version.replace(/[^\d\.]/g,'').split(".")[0] : undefined$1;
        },
        trim : function (str) {
          return str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
        }
    };


    ///////////////
    // Map helper
    //////////////


    var mapper = {

        rgx : function (ua, arrays) {

            var i = 0, j, k, p, q, matches, match;

            // loop through all regexes maps
            while (i < arrays.length && !matches) {

                var regex = arrays[i],       // even sequence (0,2,4,..)
                    props = arrays[i + 1];   // odd sequence (1,3,5,..)
                j = k = 0;

                // try matching uastring with regexes
                while (j < regex.length && !matches) {

                    matches = regex[j++].exec(ua);

                    if (!!matches) {
                        for (p = 0; p < props.length; p++) {
                            match = matches[++k];
                            q = props[p];
                            // check if given property is actually array
                            if (typeof q === OBJ_TYPE && q.length > 0) {
                                if (q.length == 2) {
                                    if (typeof q[1] == FUNC_TYPE) {
                                        // assign modified match
                                        this[q[0]] = q[1].call(this, match);
                                    } else {
                                        // assign given value, ignore regex match
                                        this[q[0]] = q[1];
                                    }
                                } else if (q.length == 3) {
                                    // check whether function or regex
                                    if (typeof q[1] === FUNC_TYPE && !(q[1].exec && q[1].test)) {
                                        // call function (usually string mapper)
                                        this[q[0]] = match ? q[1].call(this, match, q[2]) : undefined$1;
                                    } else {
                                        // sanitize match using given regex
                                        this[q[0]] = match ? match.replace(q[1], q[2]) : undefined$1;
                                    }
                                } else if (q.length == 4) {
                                        this[q[0]] = match ? q[3].call(this, match.replace(q[1], q[2])) : undefined$1;
                                }
                            } else {
                                this[q] = match ? match : undefined$1;
                            }
                        }
                    }
                }
                i += 2;
            }
        },

        str : function (str, map) {

            for (var i in map) {
                // check if array
                if (typeof map[i] === OBJ_TYPE && map[i].length > 0) {
                    for (var j = 0; j < map[i].length; j++) {
                        if (util.has(map[i][j], str)) {
                            return (i === UNKNOWN) ? undefined$1 : i;
                        }
                    }
                } else if (util.has(map[i], str)) {
                    return (i === UNKNOWN) ? undefined$1 : i;
                }
            }
            return str;
        }
    };


    ///////////////
    // String map
    //////////////


    var maps = {

        browser : {
            oldsafari : {
                version : {
                    '1.0'   : '/8',
                    '1.2'   : '/1',
                    '1.3'   : '/3',
                    '2.0'   : '/412',
                    '2.0.2' : '/416',
                    '2.0.3' : '/417',
                    '2.0.4' : '/419',
                    '?'     : '/'
                }
            }
        },

        device : {
            amazon : {
                model : {
                    'Fire Phone' : ['SD', 'KF']
                }
            },
            sprint : {
                model : {
                    'Evo Shift 4G' : '7373KT'
                },
                vendor : {
                    'HTC'       : 'APA',
                    'Sprint'    : 'Sprint'
                }
            }
        },

        os : {
            windows : {
                version : {
                    'ME'        : '4.90',
                    'NT 3.11'   : 'NT3.51',
                    'NT 4.0'    : 'NT4.0',
                    '2000'      : 'NT 5.0',
                    'XP'        : ['NT 5.1', 'NT 5.2'],
                    'Vista'     : 'NT 6.0',
                    '7'         : 'NT 6.1',
                    '8'         : 'NT 6.2',
                    '8.1'       : 'NT 6.3',
                    '10'        : ['NT 6.4', 'NT 10.0'],
                    'RT'        : 'ARM'
                }
            }
        }
    };


    //////////////
    // Regex map
    /////////////


    var regexes = {

        browser : [[

            // Presto based
            /(opera\smini)\/([\w\.-]+)/i,                                       // Opera Mini
            /(opera\s[mobiletab]+).+version\/([\w\.-]+)/i,                      // Opera Mobi/Tablet
            /(opera).+version\/([\w\.]+)/i,                                     // Opera > 9.80
            /(opera)[\/\s]+([\w\.]+)/i                                          // Opera < 9.80
            ], [NAME, VERSION], [

            /(opios)[\/\s]+([\w\.]+)/i                                          // Opera mini on iphone >= 8.0
            ], [[NAME, 'Opera Mini'], VERSION], [

            /\s(opr)\/([\w\.]+)/i                                               // Opera Webkit
            ], [[NAME, 'Opera'], VERSION], [

            // Mixed
            /(kindle)\/([\w\.]+)/i,                                             // Kindle
            /(lunascape|maxthon|netfront|jasmine|blazer)[\/\s]?([\w\.]*)/i,
                                                                                // Lunascape/Maxthon/Netfront/Jasmine/Blazer
            // Trident based
            /(avant\s|iemobile|slim)(?:browser)?[\/\s]?([\w\.]*)/i,
                                                                                // Avant/IEMobile/SlimBrowser
            /(bidubrowser|baidubrowser)[\/\s]?([\w\.]+)/i,                      // Baidu Browser
            /(?:ms|\()(ie)\s([\w\.]+)/i,                                        // Internet Explorer

            // Webkit/KHTML based
            /(rekonq)\/([\w\.]*)/i,                                             // Rekonq
            /(chromium|flock|rockmelt|midori|epiphany|silk|skyfire|ovibrowser|bolt|iron|vivaldi|iridium|phantomjs|bowser|quark|qupzilla|falkon)\/([\w\.-]+)/i
                                                                                // Chromium/Flock/RockMelt/Midori/Epiphany/Silk/Skyfire/Bolt/Iron/Iridium/PhantomJS/Bowser/QupZilla/Falkon
            ], [NAME, VERSION], [

            /(konqueror)\/([\w\.]+)/i                                           // Konqueror
            ], [[NAME, 'Konqueror'], VERSION], [

            /(trident).+rv[:\s]([\w\.]+).+like\sgecko/i                         // IE11
            ], [[NAME, 'IE'], VERSION], [

            /(edge|edgios|edga|edg)\/((\d+)?[\w\.]+)/i                          // Microsoft Edge
            ], [[NAME, 'Edge'], VERSION], [

            /(yabrowser)\/([\w\.]+)/i                                           // Yandex
            ], [[NAME, 'Yandex'], VERSION], [

            /(Avast)\/([\w\.]+)/i                                               // Avast Secure Browser
            ], [[NAME, 'Avast Secure Browser'], VERSION], [

            /(AVG)\/([\w\.]+)/i                                                 // AVG Secure Browser
            ], [[NAME, 'AVG Secure Browser'], VERSION], [

            /(puffin)\/([\w\.]+)/i                                              // Puffin
            ], [[NAME, 'Puffin'], VERSION], [

            /(focus)\/([\w\.]+)/i                                               // Firefox Focus
            ], [[NAME, 'Firefox Focus'], VERSION], [

            /(opt)\/([\w\.]+)/i                                                 // Opera Touch
            ], [[NAME, 'Opera Touch'], VERSION], [

            /((?:[\s\/])uc?\s?browser|(?:juc.+)ucweb)[\/\s]?([\w\.]+)/i         // UCBrowser
            ], [[NAME, 'UCBrowser'], VERSION], [

            /(comodo_dragon)\/([\w\.]+)/i                                       // Comodo Dragon
            ], [[NAME, /_/g, ' '], VERSION], [

            /(windowswechat qbcore)\/([\w\.]+)/i                                // WeChat Desktop for Windows Built-in Browser
            ], [[NAME, 'WeChat(Win) Desktop'], VERSION], [

            /(micromessenger)\/([\w\.]+)/i                                      // WeChat
            ], [[NAME, 'WeChat'], VERSION], [

            /(brave)\/([\w\.]+)/i                                               // Brave browser
            ], [[NAME, 'Brave'], VERSION], [

            /(qqbrowserlite)\/([\w\.]+)/i                                       // QQBrowserLite
            ], [NAME, VERSION], [

            /(QQ)\/([\d\.]+)/i                                                  // QQ, aka ShouQ
            ], [NAME, VERSION], [

            /m?(qqbrowser)[\/\s]?([\w\.]+)/i                                    // QQBrowser
            ], [NAME, VERSION], [

            /(baiduboxapp)[\/\s]?([\w\.]+)/i                                    // Baidu App
            ], [NAME, VERSION], [

            /(2345Explorer)[\/\s]?([\w\.]+)/i                                   // 2345 Browser
            ], [NAME, VERSION], [

            /(MetaSr)[\/\s]?([\w\.]+)/i                                         // SouGouBrowser
            ], [NAME], [

            /(LBBROWSER)/i                                                      // LieBao Browser
            ], [NAME], [

            /xiaomi\/miuibrowser\/([\w\.]+)/i                                   // MIUI Browser
            ], [VERSION, [NAME, 'MIUI Browser']], [

            /;fbav\/([\w\.]+);/i                                                // Facebook App for iOS & Android
            ], [VERSION, [NAME, 'Facebook']], [

            /safari\s(line)\/([\w\.]+)/i,                                       // Line App for iOS
            /android.+(line)\/([\w\.]+)\/iab/i                                  // Line App for Android
            ], [NAME, VERSION], [

            /headlesschrome(?:\/([\w\.]+)|\s)/i                                 // Chrome Headless
            ], [VERSION, [NAME, 'Chrome Headless']], [

            /\swv\).+(chrome)\/([\w\.]+)/i                                      // Chrome WebView
            ], [[NAME, /(.+)/, '$1 WebView'], VERSION], [

            /((?:oculus|samsung)browser)\/([\w\.]+)/i
            ], [[NAME, /(.+(?:g|us))(.+)/, '$1 $2'], VERSION], [                // Oculus / Samsung Browser

            /android.+version\/([\w\.]+)\s+(?:mobile\s?safari|safari)*/i        // Android Browser
            ], [VERSION, [NAME, 'Android Browser']], [

            /(sailfishbrowser)\/([\w\.]+)/i                                     // Sailfish Browser
            ], [[NAME, 'Sailfish Browser'], VERSION], [

            /(chrome|omniweb|arora|[tizenoka]{5}\s?browser)\/v?([\w\.]+)/i
                                                                                // Chrome/OmniWeb/Arora/Tizen/Nokia
            ], [NAME, VERSION], [

            /(dolfin)\/([\w\.]+)/i                                              // Dolphin
            ], [[NAME, 'Dolphin'], VERSION], [

            /(qihu|qhbrowser|qihoobrowser|360browser)/i                         // 360
            ], [[NAME, '360 Browser']], [

            /((?:android.+)crmo|crios)\/([\w\.]+)/i                             // Chrome for Android/iOS
            ], [[NAME, 'Chrome'], VERSION], [

            /(coast)\/([\w\.]+)/i                                               // Opera Coast
            ], [[NAME, 'Opera Coast'], VERSION], [

            /fxios\/([\w\.-]+)/i                                                // Firefox for iOS
            ], [VERSION, [NAME, 'Firefox']], [

            /version\/([\w\.]+).+?mobile\/\w+\s(safari)/i                       // Mobile Safari
            ], [VERSION, [NAME, 'Mobile Safari']], [

            /version\/([\w\.]+).+?(mobile\s?safari|safari)/i                    // Safari & Safari Mobile
            ], [VERSION, NAME], [

            /webkit.+?(gsa)\/([\w\.]+).+?(mobile\s?safari|safari)(\/[\w\.]+)/i  // Google Search Appliance on iOS
            ], [[NAME, 'GSA'], VERSION], [

            /webkit.+?(mobile\s?safari|safari)(\/[\w\.]+)/i                     // Safari < 3.0
            ], [NAME, [VERSION, mapper.str, maps.browser.oldsafari.version]], [

            /(webkit|khtml)\/([\w\.]+)/i
            ], [NAME, VERSION], [

            // Gecko based
            /(navigator|netscape)\/([\w\.-]+)/i                                 // Netscape
            ], [[NAME, 'Netscape'], VERSION], [
            /(swiftfox)/i,                                                      // Swiftfox
            /(icedragon|iceweasel|camino|chimera|fennec|maemo\sbrowser|minimo|conkeror)[\/\s]?([\w\.\+]+)/i,
                                                                                // IceDragon/Iceweasel/Camino/Chimera/Fennec/Maemo/Minimo/Conkeror
            /(firefox|seamonkey|k-meleon|icecat|iceape|firebird|phoenix|palemoon|basilisk|waterfox)\/([\w\.-]+)$/i,

                                                                                // Firefox/SeaMonkey/K-Meleon/IceCat/IceApe/Firebird/Phoenix
            /(mozilla)\/([\w\.]+).+rv\:.+gecko\/\d+/i,                          // Mozilla

            // Other
            /(polaris|lynx|dillo|icab|doris|amaya|w3m|netsurf|sleipnir)[\/\s]?([\w\.]+)/i,
                                                                                // Polaris/Lynx/Dillo/iCab/Doris/Amaya/w3m/NetSurf/Sleipnir
            /(links)\s\(([\w\.]+)/i,                                            // Links
            /(gobrowser)\/?([\w\.]*)/i,                                         // GoBrowser
            /(ice\s?browser)\/v?([\w\._]+)/i,                                   // ICE Browser
            /(mosaic)[\/\s]([\w\.]+)/i                                          // Mosaic
            ], [NAME, VERSION]
        ],

        cpu : [[

            /(?:(amd|x(?:(?:86|64)[_-])?|wow|win)64)[;\)]/i                     // AMD64
            ], [[ARCHITECTURE, 'amd64']], [

            /(ia32(?=;))/i                                                      // IA32 (quicktime)
            ], [[ARCHITECTURE, util.lowerize]], [

            /((?:i[346]|x)86)[;\)]/i                                            // IA32
            ], [[ARCHITECTURE, 'ia32']], [

            // PocketPC mistakenly identified as PowerPC
            /windows\s(ce|mobile);\sppc;/i
            ], [[ARCHITECTURE, 'arm']], [

            /((?:ppc|powerpc)(?:64)?)(?:\smac|;|\))/i                           // PowerPC
            ], [[ARCHITECTURE, /ower/, '', util.lowerize]], [

            /(sun4\w)[;\)]/i                                                    // SPARC
            ], [[ARCHITECTURE, 'sparc']], [

            /((?:avr32|ia64(?=;))|68k(?=\))|arm(?:64|(?=v\d+[;l]))|(?=atmel\s)avr|(?:irix|mips|sparc)(?:64)?(?=;)|pa-risc)/i
                                                                                // IA64, 68K, ARM/64, AVR/32, IRIX/64, MIPS/64, SPARC/64, PA-RISC
            ], [[ARCHITECTURE, util.lowerize]]
        ],

        device : [[

            /\((ipad|playbook);[\w\s\),;-]+(rim|apple)/i                        // iPad/PlayBook
            ], [MODEL, VENDOR, [TYPE, TABLET]], [

            /applecoremedia\/[\w\.]+ \((ipad)/                                  // iPad
            ], [MODEL, [VENDOR, 'Apple'], [TYPE, TABLET]], [

            /(apple\s{0,1}tv)/i                                                 // Apple TV
            ], [[MODEL, 'Apple TV'], [VENDOR, 'Apple'], [TYPE, SMARTTV]], [

            /(archos)\s(gamepad2?)/i,                                           // Archos
            /(hp).+(touchpad)/i,                                                // HP TouchPad
            /(hp).+(tablet)/i,                                                  // HP Tablet
            /(kindle)\/([\w\.]+)/i,                                             // Kindle
            /\s(nook)[\w\s]+build\/(\w+)/i,                                     // Nook
            /(dell)\s(strea[kpr\s\d]*[\dko])/i                                  // Dell Streak
            ], [VENDOR, MODEL, [TYPE, TABLET]], [

            /(kf[A-z]+)\sbuild\/.+silk\//i                                      // Kindle Fire HD
            ], [MODEL, [VENDOR, 'Amazon'], [TYPE, TABLET]], [
            /(sd|kf)[0349hijorstuw]+\sbuild\/.+silk\//i                         // Fire Phone
            ], [[MODEL, mapper.str, maps.device.amazon.model], [VENDOR, 'Amazon'], [TYPE, MOBILE]], [
            /android.+aft([bms])\sbuild/i                                       // Fire TV
            ], [MODEL, [VENDOR, 'Amazon'], [TYPE, SMARTTV]], [

            /\((ip[honed|\s\w*]+);.+(apple)/i                                   // iPod/iPhone
            ], [MODEL, VENDOR, [TYPE, MOBILE]], [
            /\((ip[honed|\s\w*]+);/i                                            // iPod/iPhone
            ], [MODEL, [VENDOR, 'Apple'], [TYPE, MOBILE]], [

            /(blackberry)[\s-]?(\w+)/i,                                         // BlackBerry
            /(blackberry|benq|palm(?=\-)|sonyericsson|acer|asus|dell|meizu|motorola|polytron)[\s_-]?([\w-]*)/i,
                                                                                // BenQ/Palm/Sony-Ericsson/Acer/Asus/Dell/Meizu/Motorola/Polytron
            /(hp)\s([\w\s]+\w)/i,                                               // HP iPAQ
            /(asus)-?(\w+)/i                                                    // Asus
            ], [VENDOR, MODEL, [TYPE, MOBILE]], [
            /\(bb10;\s(\w+)/i                                                   // BlackBerry 10
            ], [MODEL, [VENDOR, 'BlackBerry'], [TYPE, MOBILE]], [
                                                                                // Asus Tablets
            /android.+(transfo[prime\s]{4,10}\s\w+|eeepc|slider\s\w+|nexus 7|padfone|p00c)/i
            ], [MODEL, [VENDOR, 'Asus'], [TYPE, TABLET]], [

            /(sony)\s(tablet\s[ps])\sbuild\//i,                                  // Sony
            /(sony)?(?:sgp.+)\sbuild\//i
            ], [[VENDOR, 'Sony'], [MODEL, 'Xperia Tablet'], [TYPE, TABLET]], [
            /android.+\s([c-g]\d{4}|so[-l]\w+)(?=\sbuild\/|\).+chrome\/(?![1-6]{0,1}\d\.))/i
            ], [MODEL, [VENDOR, 'Sony'], [TYPE, MOBILE]], [

            /\s(ouya)\s/i,                                                      // Ouya
            /(nintendo)\s([wids3u]+)/i                                          // Nintendo
            ], [VENDOR, MODEL, [TYPE, CONSOLE]], [

            /android.+;\s(shield)\sbuild/i                                      // Nvidia
            ], [MODEL, [VENDOR, 'Nvidia'], [TYPE, CONSOLE]], [

            /(playstation\s[34portablevi]+)/i                                   // Playstation
            ], [MODEL, [VENDOR, 'Sony'], [TYPE, CONSOLE]], [

            /(sprint\s(\w+))/i                                                  // Sprint Phones
            ], [[VENDOR, mapper.str, maps.device.sprint.vendor], [MODEL, mapper.str, maps.device.sprint.model], [TYPE, MOBILE]], [

            /(htc)[;_\s-]+([\w\s]+(?=\)|\sbuild)|\w+)/i,                        // HTC
            /(zte)-(\w*)/i,                                                     // ZTE
            /(alcatel|geeksphone|nexian|panasonic|(?=;\s)sony)[_\s-]?([\w-]*)/i
                                                                                // Alcatel/GeeksPhone/Nexian/Panasonic/Sony
            ], [VENDOR, [MODEL, /_/g, ' '], [TYPE, MOBILE]], [

            /(nexus\s9)/i                                                       // HTC Nexus 9
            ], [MODEL, [VENDOR, 'HTC'], [TYPE, TABLET]], [

            /d\/huawei([\w\s-]+)[;\)]/i,
            /(nexus\s6p|vog-l29|ane-lx1|eml-l29)/i                              // Huawei
            ], [MODEL, [VENDOR, 'Huawei'], [TYPE, MOBILE]], [

            /android.+(bah2?-a?[lw]\d{2})/i                                     // Huawei MediaPad
            ], [MODEL, [VENDOR, 'Huawei'], [TYPE, TABLET]], [

            /(microsoft);\s(lumia[\s\w]+)/i                                     // Microsoft Lumia
            ], [VENDOR, MODEL, [TYPE, MOBILE]], [

            /[\s\(;](xbox(?:\sone)?)[\s\);]/i                                   // Microsoft Xbox
            ], [MODEL, [VENDOR, 'Microsoft'], [TYPE, CONSOLE]], [
            /(kin\.[onetw]{3})/i                                                // Microsoft Kin
            ], [[MODEL, /\./g, ' '], [VENDOR, 'Microsoft'], [TYPE, MOBILE]], [

                                                                                // Motorola
            /\s(milestone|droid(?:[2-4x]|\s(?:bionic|x2|pro|razr))?:?(\s4g)?)[\w\s]+build\//i,
            /mot[\s-]?(\w*)/i,
            /(XT\d{3,4}) build\//i,
            /(nexus\s6)/i
            ], [MODEL, [VENDOR, 'Motorola'], [TYPE, MOBILE]], [
            /android.+\s(mz60\d|xoom[\s2]{0,2})\sbuild\//i
            ], [MODEL, [VENDOR, 'Motorola'], [TYPE, TABLET]], [

            /hbbtv\/\d+\.\d+\.\d+\s+\([\w\s]*;\s*(\w[^;]*);([^;]*)/i            // HbbTV devices
            ], [[VENDOR, util.trim], [MODEL, util.trim], [TYPE, SMARTTV]], [

            /hbbtv.+maple;(\d+)/i
            ], [[MODEL, /^/, 'SmartTV'], [VENDOR, 'Samsung'], [TYPE, SMARTTV]], [

            /\(dtv[\);].+(aquos)/i                                              // Sharp
            ], [MODEL, [VENDOR, 'Sharp'], [TYPE, SMARTTV]], [

            /android.+((sch-i[89]0\d|shw-m380s|gt-p\d{4}|gt-n\d+|sgh-t8[56]9|nexus 10))/i,
            /((SM-T\w+))/i
            ], [[VENDOR, 'Samsung'], MODEL, [TYPE, TABLET]], [                  // Samsung
            /smart-tv.+(samsung)/i
            ], [VENDOR, [TYPE, SMARTTV], MODEL], [
            /((s[cgp]h-\w+|gt-\w+|galaxy\snexus|sm-\w[\w\d]+))/i,
            /(sam[sung]*)[\s-]*(\w+-?[\w-]*)/i,
            /sec-((sgh\w+))/i
            ], [[VENDOR, 'Samsung'], MODEL, [TYPE, MOBILE]], [

            /sie-(\w*)/i                                                        // Siemens
            ], [MODEL, [VENDOR, 'Siemens'], [TYPE, MOBILE]], [

            /(maemo|nokia).*(n900|lumia\s\d+)/i,                                // Nokia
            /(nokia)[\s_-]?([\w-]*)/i
            ], [[VENDOR, 'Nokia'], MODEL, [TYPE, MOBILE]], [

            /android[x\d\.\s;]+\s([ab][1-7]\-?[0178a]\d\d?)/i                   // Acer
            ], [MODEL, [VENDOR, 'Acer'], [TYPE, TABLET]], [

            /android.+([vl]k\-?\d{3})\s+build/i                                 // LG Tablet
            ], [MODEL, [VENDOR, 'LG'], [TYPE, TABLET]], [
            /android\s3\.[\s\w;-]{10}(lg?)-([06cv9]{3,4})/i                     // LG Tablet
            ], [[VENDOR, 'LG'], MODEL, [TYPE, TABLET]], [
            /(lg) netcast\.tv/i                                                 // LG SmartTV
            ], [VENDOR, MODEL, [TYPE, SMARTTV]], [
            /(nexus\s[45])/i,                                                   // LG
            /lg[e;\s\/-]+(\w*)/i,
            /android.+lg(\-?[\d\w]+)\s+build/i
            ], [MODEL, [VENDOR, 'LG'], [TYPE, MOBILE]], [

            /(lenovo)\s?(s(?:5000|6000)(?:[\w-]+)|tab(?:[\s\w]+))/i             // Lenovo tablets
            ], [VENDOR, MODEL, [TYPE, TABLET]], [
            /android.+(ideatab[a-z0-9\-\s]+)/i                                  // Lenovo
            ], [MODEL, [VENDOR, 'Lenovo'], [TYPE, TABLET]], [
            /(lenovo)[_\s-]?([\w-]+)/i
            ], [VENDOR, MODEL, [TYPE, MOBILE]], [

            /linux;.+((jolla));/i                                               // Jolla
            ], [VENDOR, MODEL, [TYPE, MOBILE]], [

            /((pebble))app\/[\d\.]+\s/i                                         // Pebble
            ], [VENDOR, MODEL, [TYPE, WEARABLE]], [

            /android.+;\s(oppo)\s?([\w\s]+)\sbuild/i                            // OPPO
            ], [VENDOR, MODEL, [TYPE, MOBILE]], [

            /crkey/i                                                            // Google Chromecast
            ], [[MODEL, 'Chromecast'], [VENDOR, 'Google'], [TYPE, SMARTTV]], [

            /android.+;\s(glass)\s\d/i                                          // Google Glass
            ], [MODEL, [VENDOR, 'Google'], [TYPE, WEARABLE]], [

            /android.+;\s(pixel c)[\s)]/i                                       // Google Pixel C
            ], [MODEL, [VENDOR, 'Google'], [TYPE, TABLET]], [

            /android.+;\s(pixel( [23])?( xl)?)[\s)]/i                              // Google Pixel
            ], [MODEL, [VENDOR, 'Google'], [TYPE, MOBILE]], [

            /android.+;\s(\w+)\s+build\/hm\1/i,                                 // Xiaomi Hongmi 'numeric' models
            /android.+(hm[\s\-_]*note?[\s_]*(?:\d\w)?)\s+build/i,               // Xiaomi Hongmi
            /android.+(mi[\s\-_]*(?:a\d|one|one[\s_]plus|note lte)?[\s_]*(?:\d?\w?)[\s_]*(?:plus)?)\s+build/i,    
                                                                                // Xiaomi Mi
            /android.+(redmi[\s\-_]*(?:note)?(?:[\s_]*[\w\s]+))\s+build/i       // Redmi Phones
            ], [[MODEL, /_/g, ' '], [VENDOR, 'Xiaomi'], [TYPE, MOBILE]], [
            /android.+(mi[\s\-_]*(?:pad)(?:[\s_]*[\w\s]+))\s+build/i            // Mi Pad tablets
            ],[[MODEL, /_/g, ' '], [VENDOR, 'Xiaomi'], [TYPE, TABLET]], [
            /android.+;\s(m[1-5]\snote)\sbuild/i                                // Meizu
            ], [MODEL, [VENDOR, 'Meizu'], [TYPE, MOBILE]], [
            /(mz)-([\w-]{2,})/i
            ], [[VENDOR, 'Meizu'], MODEL, [TYPE, MOBILE]], [

            /android.+a000(1)\s+build/i,                                        // OnePlus
            /android.+oneplus\s(a\d{4})[\s)]/i
            ], [MODEL, [VENDOR, 'OnePlus'], [TYPE, MOBILE]], [

            /android.+[;\/]\s*(RCT[\d\w]+)\s+build/i                            // RCA Tablets
            ], [MODEL, [VENDOR, 'RCA'], [TYPE, TABLET]], [

            /android.+[;\/\s]+(Venue[\d\s]{2,7})\s+build/i                      // Dell Venue Tablets
            ], [MODEL, [VENDOR, 'Dell'], [TYPE, TABLET]], [

            /android.+[;\/]\s*(Q[T|M][\d\w]+)\s+build/i                         // Verizon Tablet
            ], [MODEL, [VENDOR, 'Verizon'], [TYPE, TABLET]], [

            /android.+[;\/]\s+(Barnes[&\s]+Noble\s+|BN[RT])(V?.*)\s+build/i     // Barnes & Noble Tablet
            ], [[VENDOR, 'Barnes & Noble'], MODEL, [TYPE, TABLET]], [

            /android.+[;\/]\s+(TM\d{3}.*\b)\s+build/i                           // Barnes & Noble Tablet
            ], [MODEL, [VENDOR, 'NuVision'], [TYPE, TABLET]], [

            /android.+;\s(k88)\sbuild/i                                         // ZTE K Series Tablet
            ], [MODEL, [VENDOR, 'ZTE'], [TYPE, TABLET]], [

            /android.+[;\/]\s*(gen\d{3})\s+build.*49h/i                         // Swiss GEN Mobile
            ], [MODEL, [VENDOR, 'Swiss'], [TYPE, MOBILE]], [

            /android.+[;\/]\s*(zur\d{3})\s+build/i                              // Swiss ZUR Tablet
            ], [MODEL, [VENDOR, 'Swiss'], [TYPE, TABLET]], [

            /android.+[;\/]\s*((Zeki)?TB.*\b)\s+build/i                         // Zeki Tablets
            ], [MODEL, [VENDOR, 'Zeki'], [TYPE, TABLET]], [

            /(android).+[;\/]\s+([YR]\d{2})\s+build/i,
            /android.+[;\/]\s+(Dragon[\-\s]+Touch\s+|DT)(\w{5})\sbuild/i        // Dragon Touch Tablet
            ], [[VENDOR, 'Dragon Touch'], MODEL, [TYPE, TABLET]], [

            /android.+[;\/]\s*(NS-?\w{0,9})\sbuild/i                            // Insignia Tablets
            ], [MODEL, [VENDOR, 'Insignia'], [TYPE, TABLET]], [

            /android.+[;\/]\s*((NX|Next)-?\w{0,9})\s+build/i                    // NextBook Tablets
            ], [MODEL, [VENDOR, 'NextBook'], [TYPE, TABLET]], [

            /android.+[;\/]\s*(Xtreme\_)?(V(1[045]|2[015]|30|40|60|7[05]|90))\s+build/i
            ], [[VENDOR, 'Voice'], MODEL, [TYPE, MOBILE]], [                    // Voice Xtreme Phones

            /android.+[;\/]\s*(LVTEL\-)?(V1[12])\s+build/i                     // LvTel Phones
            ], [[VENDOR, 'LvTel'], MODEL, [TYPE, MOBILE]], [

            /android.+;\s(PH-1)\s/i
            ], [MODEL, [VENDOR, 'Essential'], [TYPE, MOBILE]], [                // Essential PH-1

            /android.+[;\/]\s*(V(100MD|700NA|7011|917G).*\b)\s+build/i          // Envizen Tablets
            ], [MODEL, [VENDOR, 'Envizen'], [TYPE, TABLET]], [

            /android.+[;\/]\s*(Le[\s\-]+Pan)[\s\-]+(\w{1,9})\s+build/i          // Le Pan Tablets
            ], [VENDOR, MODEL, [TYPE, TABLET]], [

            /android.+[;\/]\s*(Trio[\s\-]*.*)\s+build/i                         // MachSpeed Tablets
            ], [MODEL, [VENDOR, 'MachSpeed'], [TYPE, TABLET]], [

            /android.+[;\/]\s*(Trinity)[\-\s]*(T\d{3})\s+build/i                // Trinity Tablets
            ], [VENDOR, MODEL, [TYPE, TABLET]], [

            /android.+[;\/]\s*TU_(1491)\s+build/i                               // Rotor Tablets
            ], [MODEL, [VENDOR, 'Rotor'], [TYPE, TABLET]], [

            /android.+(KS(.+))\s+build/i                                        // Amazon Kindle Tablets
            ], [MODEL, [VENDOR, 'Amazon'], [TYPE, TABLET]], [

            /android.+(Gigaset)[\s\-]+(Q\w{1,9})\s+build/i                      // Gigaset Tablets
            ], [VENDOR, MODEL, [TYPE, TABLET]], [

            /\s(tablet|tab)[;\/]/i,                                             // Unidentifiable Tablet
            /\s(mobile)(?:[;\/]|\ssafari)/i                                     // Unidentifiable Mobile
            ], [[TYPE, util.lowerize], VENDOR, MODEL], [

            /[\s\/\(](smart-?tv)[;\)]/i                                         // SmartTV
            ], [[TYPE, SMARTTV]], [

            /(android[\w\.\s\-]{0,9});.+build/i                                 // Generic Android Device
            ], [MODEL, [VENDOR, 'Generic']]
        ],

        engine : [[

            /windows.+\sedge\/([\w\.]+)/i                                       // EdgeHTML
            ], [VERSION, [NAME, 'EdgeHTML']], [

            /webkit\/537\.36.+chrome\/(?!27)([\w\.]+)/i                         // Blink
            ], [VERSION, [NAME, 'Blink']], [

            /(presto)\/([\w\.]+)/i,                                             // Presto
            /(webkit|trident|netfront|netsurf|amaya|lynx|w3m|goanna)\/([\w\.]+)/i,     
                                                                                // WebKit/Trident/NetFront/NetSurf/Amaya/Lynx/w3m/Goanna
            /(khtml|tasman|links)[\/\s]\(?([\w\.]+)/i,                          // KHTML/Tasman/Links
            /(icab)[\/\s]([23]\.[\d\.]+)/i                                      // iCab
            ], [NAME, VERSION], [

            /rv\:([\w\.]{1,9}).+(gecko)/i                                       // Gecko
            ], [VERSION, NAME]
        ],

        os : [[

            // Windows based
            /microsoft\s(windows)\s(vista|xp)/i                                 // Windows (iTunes)
            ], [NAME, VERSION], [
            /(windows)\snt\s6\.2;\s(arm)/i,                                     // Windows RT
            /(windows\sphone(?:\sos)*)[\s\/]?([\d\.\s\w]*)/i,                   // Windows Phone
            /(windows\smobile|windows)[\s\/]?([ntce\d\.\s]+\w)/i
            ], [NAME, [VERSION, mapper.str, maps.os.windows.version]], [
            /(win(?=3|9|n)|win\s9x\s)([nt\d\.]+)/i
            ], [[NAME, 'Windows'], [VERSION, mapper.str, maps.os.windows.version]], [

            // Mobile/Embedded OS
            /\((bb)(10);/i                                                      // BlackBerry 10
            ], [[NAME, 'BlackBerry'], VERSION], [
            /(blackberry)\w*\/?([\w\.]*)/i,                                     // Blackberry
            /(tizen|kaios)[\/\s]([\w\.]+)/i,                                    // Tizen/KaiOS
            /(android|webos|palm\sos|qnx|bada|rim\stablet\sos|meego|sailfish|contiki)[\/\s-]?([\w\.]*)/i
                                                                                // Android/WebOS/Palm/QNX/Bada/RIM/MeeGo/Contiki/Sailfish OS
            ], [NAME, VERSION], [
            /(symbian\s?os|symbos|s60(?=;))[\/\s-]?([\w\.]*)/i                  // Symbian
            ], [[NAME, 'Symbian'], VERSION], [
            /\((series40);/i                                                    // Series 40
            ], [NAME], [
            /mozilla.+\(mobile;.+gecko.+firefox/i                               // Firefox OS
            ], [[NAME, 'Firefox OS'], VERSION], [

            // Console
            /(nintendo|playstation)\s([wids34portablevu]+)/i,                   // Nintendo/Playstation

            // GNU/Linux based
            /(mint)[\/\s\(]?(\w*)/i,                                            // Mint
            /(mageia|vectorlinux)[;\s]/i,                                       // Mageia/VectorLinux
            /(joli|[kxln]?ubuntu|debian|suse|opensuse|gentoo|(?=\s)arch|slackware|fedora|mandriva|centos|pclinuxos|redhat|zenwalk|linpus)[\/\s-]?(?!chrom)([\w\.-]*)/i,
                                                                                // Joli/Ubuntu/Debian/SUSE/Gentoo/Arch/Slackware
                                                                                // Fedora/Mandriva/CentOS/PCLinuxOS/RedHat/Zenwalk/Linpus
            /(hurd|linux)\s?([\w\.]*)/i,                                        // Hurd/Linux
            /(gnu)\s?([\w\.]*)/i                                                // GNU
            ], [NAME, VERSION], [

            /(cros)\s[\w]+\s([\w\.]+\w)/i                                       // Chromium OS
            ], [[NAME, 'Chromium OS'], VERSION],[

            // Solaris
            /(sunos)\s?([\w\.\d]*)/i                                            // Solaris
            ], [[NAME, 'Solaris'], VERSION], [

            // BSD based
            /\s([frentopc-]{0,4}bsd|dragonfly)\s?([\w\.]*)/i                    // FreeBSD/NetBSD/OpenBSD/PC-BSD/DragonFly
            ], [NAME, VERSION],[

            /(haiku)\s(\w+)/i                                                   // Haiku
            ], [NAME, VERSION],[

            /cfnetwork\/.+darwin/i,
            /ip[honead]{2,4}(?:.*os\s([\w]+)\slike\smac|;\sopera)/i             // iOS
            ], [[VERSION, /_/g, '.'], [NAME, 'iOS']], [

            /(mac\sos\sx)\s?([\w\s\.]*)/i,
            /(macintosh|mac(?=_powerpc)\s)/i                                    // Mac OS
            ], [[NAME, 'Mac OS'], [VERSION, /_/g, '.']], [

            // Other
            /((?:open)?solaris)[\/\s-]?([\w\.]*)/i,                             // Solaris
            /(aix)\s((\d)(?=\.|\)|\s)[\w\.])*/i,                                // AIX
            /(plan\s9|minix|beos|os\/2|amigaos|morphos|risc\sos|openvms|fuchsia)/i,
                                                                                // Plan9/Minix/BeOS/OS2/AmigaOS/MorphOS/RISCOS/OpenVMS/Fuchsia
            /(unix)\s?([\w\.]*)/i                                               // UNIX
            ], [NAME, VERSION]
        ]
    };


    /////////////////
    // Constructor
    ////////////////
    var UAParser = function (uastring, extensions) {

        if (typeof uastring === 'object') {
            extensions = uastring;
            uastring = undefined$1;
        }

        if (!(this instanceof UAParser)) {
            return new UAParser(uastring, extensions).getResult();
        }

        var ua = uastring || ((window && window.navigator && window.navigator.userAgent) ? window.navigator.userAgent : EMPTY);
        var rgxmap = extensions ? util.extend(regexes, extensions) : regexes;

        this.getBrowser = function () {
            var browser = { name: undefined$1, version: undefined$1 };
            mapper.rgx.call(browser, ua, rgxmap.browser);
            browser.major = util.major(browser.version); // deprecated
            return browser;
        };
        this.getCPU = function () {
            var cpu = { architecture: undefined$1 };
            mapper.rgx.call(cpu, ua, rgxmap.cpu);
            return cpu;
        };
        this.getDevice = function () {
            var device = { vendor: undefined$1, model: undefined$1, type: undefined$1 };
            mapper.rgx.call(device, ua, rgxmap.device);
            return device;
        };
        this.getEngine = function () {
            var engine = { name: undefined$1, version: undefined$1 };
            mapper.rgx.call(engine, ua, rgxmap.engine);
            return engine;
        };
        this.getOS = function () {
            var os = { name: undefined$1, version: undefined$1 };
            mapper.rgx.call(os, ua, rgxmap.os);
            return os;
        };
        this.getResult = function () {
            return {
                ua      : this.getUA(),
                browser : this.getBrowser(),
                engine  : this.getEngine(),
                os      : this.getOS(),
                device  : this.getDevice(),
                cpu     : this.getCPU()
            };
        };
        this.getUA = function () {
            return ua;
        };
        this.setUA = function (uastring) {
            ua = uastring;
            return this;
        };
        return this;
    };

    UAParser.VERSION = LIBVERSION;
    UAParser.BROWSER = {
        NAME    : NAME,
        MAJOR   : MAJOR, // deprecated
        VERSION : VERSION
    };
    UAParser.CPU = {
        ARCHITECTURE : ARCHITECTURE
    };
    UAParser.DEVICE = {
        MODEL   : MODEL,
        VENDOR  : VENDOR,
        TYPE    : TYPE,
        CONSOLE : CONSOLE,
        MOBILE  : MOBILE,
        SMARTTV : SMARTTV,
        TABLET  : TABLET,
        WEARABLE: WEARABLE,
        EMBEDDED: EMBEDDED
    };
    UAParser.ENGINE = {
        NAME    : NAME,
        VERSION : VERSION
    };
    UAParser.OS = {
        NAME    : NAME,
        VERSION : VERSION
    };

    ///////////
    // Export
    //////////


    // check js environment
    {
        // nodejs env
        if ( module.exports) {
            exports = module.exports = UAParser;
        }
        exports.UAParser = UAParser;
    }

    // jQuery/Zepto specific (optional)
    // Note:
    //   In AMD env the global scope should be kept clean, but jQuery is an exception.
    //   jQuery always exports to global scope, unless jQuery.noConflict(true) is used,
    //   and we should catch that.
    var $ = window && (window.jQuery || window.Zepto);
    if ($ && !$.ua) {
        var parser = new UAParser();
        $.ua = parser.getResult();
        $.ua.get = function () {
            return parser.getUA();
        };
        $.ua.set = function (uastring) {
            parser.setUA(uastring);
            var result = parser.getResult();
            for (var prop in result) {
                $.ua[prop] = result[prop];
            }
        };
    }

})(typeof window === 'object' ? window : commonjsGlobal);
});
var uaParser_1 = uaParser.UAParser;

var UNKNOWN = 'Unknown';

var PLATFORM_MAP = {
  'Mac OS': 'Mac OS X'
};

/**
 * Convert from UAParser platform name to what we expect.
 */
function convertPlatformName(name) {
  return PLATFORM_MAP[name] || name;
}

/**
 * Get the version number in parts. This is very naive. We actually get major
 * version as a part of UAParser already, which is generally good enough, but
 * let's get the minor just in case.
 */
function getBrowserVersion(version) {
  if (!version) {
    return {
      major: '',
      minor: ''
    };
  }
  var parts = version.split('.');
  return {
    major: parts[0],
    minor: parts[1]
  };
}

/**
 * Get the UA data fom UAParser and then convert it to the format we're
 * expecting for our APIS.
 */
var parser = new uaParser();
var results = parser.getResult();

// Do some conversion first.
var browserVersionData = getBrowserVersion(results.browser.version);
var uaData = {
  browserArchitecture: results.cpu.architecture || UNKNOWN,
  browserFullVersion: results.browser.version || UNKNOWN,
  browserMinorVersion: browserVersionData.minor || UNKNOWN,
  browserName: results.browser.name || UNKNOWN,
  browserVersion: results.browser.major || UNKNOWN,
  deviceName: results.device.model || UNKNOWN,
  engineName: results.engine.name || UNKNOWN,
  engineVersion: results.engine.version || UNKNOWN,
  platformArchitecture: results.cpu.architecture || UNKNOWN,
  platformName: convertPlatformName(results.os.name) || UNKNOWN,
  platformVersion: results.os.version || UNKNOWN,
  platformFullVersion: results.os.version || UNKNOWN
};

var UserAgentData = uaData;

var componentRegex = /\./;
var orRegex = /\|\|/;
var rangeRegex = /\s+\-\s+/;
var modifierRegex = /^(<=|<|=|>=|~>|~|>|)?\s*(.+)/;
var numericRegex = /^(\d*)(.*)/;

/**
 * Splits input `range` on "||" and returns true if any subrange matches
 * `version`.
 *
 * @param {string} range
 * @param {string} version
 * @returns {boolean}
 */
function checkOrExpression(range, version) {
  var expressions = range.split(orRegex);

  if (expressions.length > 1) {
    return expressions.some(function (range) {
      return VersionRange.contains(range, version);
    });
  } else {
    range = expressions[0].trim();
    return checkRangeExpression(range, version);
  }
}

/**
 * Splits input `range` on " - " (the surrounding whitespace is required) and
 * returns true if version falls between the two operands.
 *
 * @param {string} range
 * @param {string} version
 * @returns {boolean}
 */
function checkRangeExpression(range, version) {
  var expressions = range.split(rangeRegex);

  !(expressions.length > 0 && expressions.length <= 2) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'the "-" operator expects exactly 2 operands') : invariant_1(false) : void 0;

  if (expressions.length === 1) {
    return checkSimpleExpression(expressions[0], version);
  } else {
    var startVersion = expressions[0],
        endVersion = expressions[1];

    !(isSimpleVersion(startVersion) && isSimpleVersion(endVersion)) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'operands to the "-" operator must be simple (no modifiers)') : invariant_1(false) : void 0;

    return checkSimpleExpression('>=' + startVersion, version) && checkSimpleExpression('<=' + endVersion, version);
  }
}

/**
 * Checks if `range` matches `version`. `range` should be a "simple" range (ie.
 * not a compound range using the " - " or "||" operators).
 *
 * @param {string} range
 * @param {string} version
 * @returns {boolean}
 */
function checkSimpleExpression(range, version) {
  range = range.trim();
  if (range === '') {
    return true;
  }

  var versionComponents = version.split(componentRegex);

  var _getModifierAndCompon = getModifierAndComponents(range),
      modifier = _getModifierAndCompon.modifier,
      rangeComponents = _getModifierAndCompon.rangeComponents;

  switch (modifier) {
    case '<':
      return checkLessThan(versionComponents, rangeComponents);
    case '<=':
      return checkLessThanOrEqual(versionComponents, rangeComponents);
    case '>=':
      return checkGreaterThanOrEqual(versionComponents, rangeComponents);
    case '>':
      return checkGreaterThan(versionComponents, rangeComponents);
    case '~':
    case '~>':
      return checkApproximateVersion(versionComponents, rangeComponents);
    default:
      return checkEqual(versionComponents, rangeComponents);
  }
}

/**
 * Checks whether `a` is less than `b`.
 *
 * @param {array<string>} a
 * @param {array<string>} b
 * @returns {boolean}
 */
function checkLessThan(a, b) {
  return compareComponents(a, b) === -1;
}

/**
 * Checks whether `a` is less than or equal to `b`.
 *
 * @param {array<string>} a
 * @param {array<string>} b
 * @returns {boolean}
 */
function checkLessThanOrEqual(a, b) {
  var result = compareComponents(a, b);
  return result === -1 || result === 0;
}

/**
 * Checks whether `a` is equal to `b`.
 *
 * @param {array<string>} a
 * @param {array<string>} b
 * @returns {boolean}
 */
function checkEqual(a, b) {
  return compareComponents(a, b) === 0;
}

/**
 * Checks whether `a` is greater than or equal to `b`.
 *
 * @param {array<string>} a
 * @param {array<string>} b
 * @returns {boolean}
 */
function checkGreaterThanOrEqual(a, b) {
  var result = compareComponents(a, b);
  return result === 1 || result === 0;
}

/**
 * Checks whether `a` is greater than `b`.
 *
 * @param {array<string>} a
 * @param {array<string>} b
 * @returns {boolean}
 */
function checkGreaterThan(a, b) {
  return compareComponents(a, b) === 1;
}

/**
 * Checks whether `a` is "reasonably close" to `b` (as described in
 * https://www.npmjs.org/doc/misc/semver.html). For example, if `b` is "1.3.1"
 * then "reasonably close" is defined as ">= 1.3.1 and < 1.4".
 *
 * @param {array<string>} a
 * @param {array<string>} b
 * @returns {boolean}
 */
function checkApproximateVersion(a, b) {
  var lowerBound = b.slice();
  var upperBound = b.slice();

  if (upperBound.length > 1) {
    upperBound.pop();
  }
  var lastIndex = upperBound.length - 1;
  var numeric = parseInt(upperBound[lastIndex], 10);
  if (isNumber(numeric)) {
    upperBound[lastIndex] = numeric + 1 + '';
  }

  return checkGreaterThanOrEqual(a, lowerBound) && checkLessThan(a, upperBound);
}

/**
 * Extracts the optional modifier (<, <=, =, >=, >, ~, ~>) and version
 * components from `range`.
 *
 * For example, given `range` ">= 1.2.3" returns an object with a `modifier` of
 * `">="` and `components` of `[1, 2, 3]`.
 *
 * @param {string} range
 * @returns {object}
 */
function getModifierAndComponents(range) {
  var rangeComponents = range.split(componentRegex);
  var matches = rangeComponents[0].match(modifierRegex);
  !matches ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'expected regex to match but it did not') : invariant_1(false) : void 0;

  return {
    modifier: matches[1],
    rangeComponents: [matches[2]].concat(rangeComponents.slice(1))
  };
}

/**
 * Determines if `number` is a number.
 *
 * @param {mixed} number
 * @returns {boolean}
 */
function isNumber(number) {
  return !isNaN(number) && isFinite(number);
}

/**
 * Tests whether `range` is a "simple" version number without any modifiers
 * (">", "~" etc).
 *
 * @param {string} range
 * @returns {boolean}
 */
function isSimpleVersion(range) {
  return !getModifierAndComponents(range).modifier;
}

/**
 * Zero-pads array `array` until it is at least `length` long.
 *
 * @param {array} array
 * @param {number} length
 */
function zeroPad(array, length) {
  for (var i = array.length; i < length; i++) {
    array[i] = '0';
  }
}

/**
 * Normalizes `a` and `b` in preparation for comparison by doing the following:
 *
 * - zero-pads `a` and `b`
 * - marks any "x", "X" or "*" component in `b` as equivalent by zero-ing it out
 *   in both `a` and `b`
 * - marks any final "*" component in `b` as a greedy wildcard by zero-ing it
 *   and all of its successors in `a`
 *
 * @param {array<string>} a
 * @param {array<string>} b
 * @returns {array<array<string>>}
 */
function normalizeVersions(a, b) {
  a = a.slice();
  b = b.slice();

  zeroPad(a, b.length);

  // mark "x" and "*" components as equal
  for (var i = 0; i < b.length; i++) {
    var matches = b[i].match(/^[x*]$/i);
    if (matches) {
      b[i] = a[i] = '0';

      // final "*" greedily zeros all remaining components
      if (matches[0] === '*' && i === b.length - 1) {
        for (var j = i; j < a.length; j++) {
          a[j] = '0';
        }
      }
    }
  }

  zeroPad(b, a.length);

  return [a, b];
}

/**
 * Returns the numerical -- not the lexicographical -- ordering of `a` and `b`.
 *
 * For example, `10-alpha` is greater than `2-beta`.
 *
 * @param {string} a
 * @param {string} b
 * @returns {number} -1, 0 or 1 to indicate whether `a` is less than, equal to,
 * or greater than `b`, respectively
 */
function compareNumeric(a, b) {
  var aPrefix = a.match(numericRegex)[1];
  var bPrefix = b.match(numericRegex)[1];
  var aNumeric = parseInt(aPrefix, 10);
  var bNumeric = parseInt(bPrefix, 10);

  if (isNumber(aNumeric) && isNumber(bNumeric) && aNumeric !== bNumeric) {
    return compare(aNumeric, bNumeric);
  } else {
    return compare(a, b);
  }
}

/**
 * Returns the ordering of `a` and `b`.
 *
 * @param {string|number} a
 * @param {string|number} b
 * @returns {number} -1, 0 or 1 to indicate whether `a` is less than, equal to,
 * or greater than `b`, respectively
 */
function compare(a, b) {
  !(typeof a === typeof b) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, '"a" and "b" must be of the same type') : invariant_1(false) : void 0;

  if (a > b) {
    return 1;
  } else if (a < b) {
    return -1;
  } else {
    return 0;
  }
}

/**
 * Compares arrays of version components.
 *
 * @param {array<string>} a
 * @param {array<string>} b
 * @returns {number} -1, 0 or 1 to indicate whether `a` is less than, equal to,
 * or greater than `b`, respectively
 */
function compareComponents(a, b) {
  var _normalizeVersions = normalizeVersions(a, b),
      aNormalized = _normalizeVersions[0],
      bNormalized = _normalizeVersions[1];

  for (var i = 0; i < bNormalized.length; i++) {
    var result = compareNumeric(aNormalized[i], bNormalized[i]);
    if (result) {
      return result;
    }
  }

  return 0;
}

var VersionRange = {
  /**
   * Checks whether `version` satisfies the `range` specification.
   *
   * We support a subset of the expressions defined in
   * https://www.npmjs.org/doc/misc/semver.html:
   *
   *    version   Must match version exactly
   *    =version  Same as just version
   *    >version  Must be greater than version
   *    >=version Must be greater than or equal to version
   *    <version  Must be less than version
   *    <=version Must be less than or equal to version
   *    ~version  Must be at least version, but less than the next significant
   *              revision above version:
   *              "~1.2.3" is equivalent to ">= 1.2.3 and < 1.3"
   *    ~>version Equivalent to ~version
   *    1.2.x     Must match "1.2.x", where "x" is a wildcard that matches
   *              anything
   *    1.2.*     Similar to "1.2.x", but "*" in the trailing position is a
   *              "greedy" wildcard, so will match any number of additional
   *              components:
   *              "1.2.*" will match "1.2.1", "1.2.1.1", "1.2.1.1.1" etc
   *    *         Any version
   *    ""        (Empty string) Same as *
   *    v1 - v2   Equivalent to ">= v1 and <= v2"
   *    r1 || r2  Passes if either r1 or r2 are satisfied
   *
   * @param {string} range
   * @param {string} version
   * @returns {boolean}
   */
  contains: function contains(range, version) {
    return checkOrExpression(range.trim(), version.trim());
  }
};

var VersionRange_1 = VersionRange;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */

var hasOwnProperty$1 = Object.prototype.hasOwnProperty;

/**
 * Executes the provided `callback` once for each enumerable own property in the
 * object and constructs a new object from the results. The `callback` is
 * invoked with three arguments:
 *
 *  - the property value
 *  - the property name
 *  - the object being traversed
 *
 * Properties that are added after the call to `mapObject` will not be visited
 * by `callback`. If the values of existing properties are changed, the value
 * passed to `callback` will be the value at the time `mapObject` visits them.
 * Properties that are deleted before being visited are not visited.
 *
 * @grep function objectMap()
 * @grep function objMap()
 *
 * @param {?object} object
 * @param {function} callback
 * @param {*} context
 * @return {?object}
 */
function mapObject(object, callback, context) {
  if (!object) {
    return null;
  }
  var result = {};
  for (var name in object) {
    if (hasOwnProperty$1.call(object, name)) {
      result[name] = callback.call(context, object[name], name, object);
    }
  }
  return result;
}

var mapObject_1 = mapObject;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * 
 * @typechecks static-only
 */

/**
 * Memoizes the return value of a function that accepts one string argument.
 */

function memoizeStringOnly(callback) {
  var cache = {};
  return function (string) {
    if (!cache.hasOwnProperty(string)) {
      cache[string] = callback.call(this, string);
    }
    return cache[string];
  };
}

var memoizeStringOnly_1 = memoizeStringOnly;

/**
 * Checks to see whether `name` and `version` satisfy `query`.
 *
 * @param {string} name Name of the browser, device, engine or platform
 * @param {?string} version Version of the browser, engine or platform
 * @param {string} query Query of form "Name [range expression]"
 * @param {?function} normalizer Optional pre-processor for range expression
 * @return {boolean}
 */
function compare$1(name, version, query, normalizer) {
  // check for exact match with no version
  if (name === query) {
    return true;
  }

  // check for non-matching names
  if (!query.startsWith(name)) {
    return false;
  }

  // full comparison with version
  var range = query.slice(name.length);
  if (version) {
    range = normalizer ? normalizer(range) : range;
    return VersionRange_1.contains(range, version);
  }

  return false;
}

/**
 * Normalizes `version` by stripping any "NT" prefix, but only on the Windows
 * platform.
 *
 * Mimics the stripping performed by the `UserAgentWindowsPlatform` PHP class.
 *
 * @param {string} version
 * @return {string}
 */
function normalizePlatformVersion(version) {
  if (UserAgentData.platformName === 'Windows') {
    return version.replace(/^\s*NT/, '');
  }

  return version;
}

/**
 * Provides client-side access to the authoritative PHP-generated User Agent
 * information supplied by the server.
 */
var UserAgent = {
  /**
   * Check if the User Agent browser matches `query`.
   *
   * `query` should be a string like "Chrome" or "Chrome > 33".
   *
   * Valid browser names include:
   *
   * - ACCESS NetFront
   * - AOL
   * - Amazon Silk
   * - Android
   * - BlackBerry
   * - BlackBerry PlayBook
   * - Chrome
   * - Chrome for iOS
   * - Chrome frame
   * - Facebook PHP SDK
   * - Facebook for iOS
   * - Firefox
   * - IE
   * - IE Mobile
   * - Mobile Safari
   * - Motorola Internet Browser
   * - Nokia
   * - Openwave Mobile Browser
   * - Opera
   * - Opera Mini
   * - Opera Mobile
   * - Safari
   * - UIWebView
   * - Unknown
   * - webOS
   * - etc...
   *
   * An authoritative list can be found in the PHP `BrowserDetector` class and
   * related classes in the same file (see calls to `new UserAgentBrowser` here:
   * https://fburl.com/50728104).
   *
   * @note Function results are memoized
   *
   * @param {string} query Query of the form "Name [range expression]"
   * @return {boolean}
   */
  isBrowser: function isBrowser(query) {
    return compare$1(UserAgentData.browserName, UserAgentData.browserFullVersion, query);
  },


  /**
   * Check if the User Agent browser uses a 32 or 64 bit architecture.
   *
   * @note Function results are memoized
   *
   * @param {string} query Query of the form "32" or "64".
   * @return {boolean}
   */
  isBrowserArchitecture: function isBrowserArchitecture(query) {
    return compare$1(UserAgentData.browserArchitecture, null, query);
  },


  /**
   * Check if the User Agent device matches `query`.
   *
   * `query` should be a string like "iPhone" or "iPad".
   *
   * Valid device names include:
   *
   * - Kindle
   * - Kindle Fire
   * - Unknown
   * - iPad
   * - iPhone
   * - iPod
   * - etc...
   *
   * An authoritative list can be found in the PHP `DeviceDetector` class and
   * related classes in the same file (see calls to `new UserAgentDevice` here:
   * https://fburl.com/50728332).
   *
   * @note Function results are memoized
   *
   * @param {string} query Query of the form "Name"
   * @return {boolean}
   */
  isDevice: function isDevice(query) {
    return compare$1(UserAgentData.deviceName, null, query);
  },


  /**
   * Check if the User Agent rendering engine matches `query`.
   *
   * `query` should be a string like "WebKit" or "WebKit >= 537".
   *
   * Valid engine names include:
   *
   * - Gecko
   * - Presto
   * - Trident
   * - WebKit
   * - etc...
   *
   * An authoritative list can be found in the PHP `RenderingEngineDetector`
   * class related classes in the same file (see calls to `new
   * UserAgentRenderingEngine` here: https://fburl.com/50728617).
   *
   * @note Function results are memoized
   *
   * @param {string} query Query of the form "Name [range expression]"
   * @return {boolean}
   */
  isEngine: function isEngine(query) {
    return compare$1(UserAgentData.engineName, UserAgentData.engineVersion, query);
  },


  /**
   * Check if the User Agent platform matches `query`.
   *
   * `query` should be a string like "Windows" or "iOS 5 - 6".
   *
   * Valid platform names include:
   *
   * - Android
   * - BlackBerry OS
   * - Java ME
   * - Linux
   * - Mac OS X
   * - Mac OS X Calendar
   * - Mac OS X Internet Account
   * - Symbian
   * - SymbianOS
   * - Windows
   * - Windows Mobile
   * - Windows Phone
   * - iOS
   * - iOS Facebook Integration Account
   * - iOS Facebook Social Sharing UI
   * - webOS
   * - Chrome OS
   * - etc...
   *
   * An authoritative list can be found in the PHP `PlatformDetector` class and
   * related classes in the same file (see calls to `new UserAgentPlatform`
   * here: https://fburl.com/50729226).
   *
   * @note Function results are memoized
   *
   * @param {string} query Query of the form "Name [range expression]"
   * @return {boolean}
   */
  isPlatform: function isPlatform(query) {
    return compare$1(UserAgentData.platformName, UserAgentData.platformFullVersion, query, normalizePlatformVersion);
  },


  /**
   * Check if the User Agent platform is a 32 or 64 bit architecture.
   *
   * @note Function results are memoized
   *
   * @param {string} query Query of the form "32" or "64".
   * @return {boolean}
   */
  isPlatformArchitecture: function isPlatformArchitecture(query) {
    return compare$1(UserAgentData.platformArchitecture, null, query);
  }
};

var UserAgent_1 = mapObject_1(UserAgent, memoizeStringOnly_1);

function _classCallCheck$9(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn$6(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits$6(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }







// In IE, spans with <br> tags render as two newlines. By rendering a span
// with only a newline character, we can be sure to render a single line.
var useNewlineChar = UserAgent_1.isBrowser('IE <= 11');

/**
 * Check whether the node should be considered a newline.
 */
function isNewline(node) {
  return useNewlineChar ? node.textContent === '\n' : node.tagName === 'BR';
}

/**
 * Placeholder elements for empty text content.
 *
 * What is this `data-text` attribute, anyway? It turns out that we need to
 * put an attribute on the lowest-level text node in order to preserve correct
 * spellcheck handling. If the <span> is naked, Chrome and Safari may do
 * bizarre things to do the DOM -- split text nodes, create extra spans, etc.
 * If the <span> has an attribute, this appears not to happen.
 * See http://jsfiddle.net/9khdavod/ for the failure case, and
 * http://jsfiddle.net/7pg143f7/ for the fixed case.
 */
var NEWLINE_A = useNewlineChar ? React.createElement(
  'span',
  { key: 'A', 'data-text': 'true' },
  '\n'
) : React.createElement('br', { key: 'A', 'data-text': 'true' });

var NEWLINE_B = useNewlineChar ? React.createElement(
  'span',
  { key: 'B', 'data-text': 'true' },
  '\n'
) : React.createElement('br', { key: 'B', 'data-text': 'true' });

/**
 * The lowest-level component in a `DraftEditor`, the text node component
 * replaces the default React text node implementation. This allows us to
 * perform custom handling of newline behavior and avoid re-rendering text
 * nodes with DOM state that already matches the expectations of our immutable
 * editor state.
 */
var DraftEditorTextNode = function (_React$Component) {
  _inherits$6(DraftEditorTextNode, _React$Component);

  function DraftEditorTextNode(props) {
    _classCallCheck$9(this, DraftEditorTextNode);

    // By flipping this flag, we also keep flipping keys which forces
    // React to remount this node every time it rerenders.
    var _this = _possibleConstructorReturn$6(this, _React$Component.call(this, props));

    _this._forceFlag = false;
    return _this;
  }

  DraftEditorTextNode.prototype.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {
    var node = reactDom.findDOMNode(this);
    var shouldBeNewline = nextProps.children === '';
    !(node instanceof Element) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'node is not an Element') : invariant_1(false) : void 0;
    if (shouldBeNewline) {
      return !isNewline(node);
    }
    return node.textContent !== nextProps.children;
  };

  DraftEditorTextNode.prototype.componentDidMount = function componentDidMount() {
    this._forceFlag = !this._forceFlag;
  };

  DraftEditorTextNode.prototype.componentDidUpdate = function componentDidUpdate() {
    this._forceFlag = !this._forceFlag;
  };

  DraftEditorTextNode.prototype.render = function render() {
    if (this.props.children === '') {
      return this._forceFlag ? NEWLINE_A : NEWLINE_B;
    }
    return React.createElement(
      'span',
      { key: this._forceFlag ? 'A' : 'B', 'data-text': 'true' },
      this.props.children
    );
  };

  return DraftEditorTextNode;
}(React.Component);

var DraftEditorTextNode_react = DraftEditorTextNode;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule DraftJsDebugLogging
 */

var DraftJsDebugLogging = {
  logSelectionStateFailure: function logSelectionStateFailure() {
    return null;
  }
};

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */

/**
 * @param {*} object The object to check.
 * @return {boolean} Whether or not the object is a DOM node.
 */
function isNode(object) {
  var doc = object ? object.ownerDocument || object : document;
  var defaultView = doc.defaultView || window;
  return !!(object && (typeof defaultView.Node === 'function' ? object instanceof defaultView.Node : typeof object === 'object' && typeof object.nodeType === 'number' && typeof object.nodeName === 'string'));
}

var isNode_1 = isNode;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */



/**
 * @param {*} object The object to check.
 * @return {boolean} Whether or not the object is a DOM text node.
 */
function isTextNode(object) {
  return isNode_1(object) && object.nodeType == 3;
}

var isTextNode_1 = isTextNode;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * 
 */



/*eslint-disable no-bitwise */

/**
 * Checks if a given DOM node contains or is another DOM node.
 */
function containsNode(outerNode, innerNode) {
  if (!outerNode || !innerNode) {
    return false;
  } else if (outerNode === innerNode) {
    return true;
  } else if (isTextNode_1(outerNode)) {
    return false;
  } else if (isTextNode_1(innerNode)) {
    return containsNode(outerNode, innerNode.parentNode);
  } else if ('contains' in outerNode) {
    return outerNode.contains(innerNode);
  } else if (outerNode.compareDocumentPosition) {
    return !!(outerNode.compareDocumentPosition(innerNode) & 16);
  } else {
    return false;
  }
}

var containsNode_1 = containsNode;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */

/* eslint-disable fb-www/typeof-undefined */

/**
 * Same as document.activeElement but wraps in a try-catch block. In IE it is
 * not safe to call document.activeElement if there is nothing focused.
 *
 * The activeElement will be null only if the document or document body is not
 * yet defined.
 *
 * @param {?DOMDocument} doc Defaults to current document.
 * @return {?DOMElement}
 */
function getActiveElement(doc) /*?DOMElement*/{
  doc = doc || (typeof document !== 'undefined' ? document : undefined);
  if (typeof doc === 'undefined') {
    return null;
  }
  try {
    return doc.activeElement || doc.body;
  } catch (e) {
    return doc.body;
  }
}

var getActiveElement_1 = getActiveElement;

function getAnonymizedDOM(node, getNodeLabels) {
  if (!node) {
    return '[empty]';
  }

  var anonymized = anonymizeTextWithin(node, getNodeLabels);
  if (anonymized.nodeType === Node.TEXT_NODE) {
    return anonymized.textContent;
  }

  !(anonymized instanceof Element) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Node must be an Element if it is not a text node.') : invariant_1(false) : void 0;
  return anonymized.outerHTML;
}

function anonymizeTextWithin(node, getNodeLabels) {
  var labels = getNodeLabels !== undefined ? getNodeLabels(node) : [];

  if (node.nodeType === Node.TEXT_NODE) {
    var length = node.textContent.length;
    return document.createTextNode('[text ' + length + (labels.length ? ' | ' + labels.join(', ') : '') + ']');
  }

  var clone = node.cloneNode();
  if (clone.nodeType === 1 && labels.length) {
    clone.setAttribute('data-labels', labels.join(', '));
  }
  var childNodes = node.childNodes;
  for (var ii = 0; ii < childNodes.length; ii++) {
    clone.appendChild(anonymizeTextWithin(childNodes[ii], getNodeLabels));
  }

  return clone;
}

function getAnonymizedEditorDOM(node, getNodeLabels) {
  // grabbing the DOM content of the Draft editor
  var currentNode = node;
  while (currentNode) {
    if (currentNode instanceof Element && currentNode.hasAttribute('contenteditable')) {
      // found the Draft editor container
      return getAnonymizedDOM(currentNode, getNodeLabels);
    } else {
      currentNode = currentNode.parentNode;
    }
  }
  return 'Could not find contentEditable parent of node';
}

function getNodeLength(node) {
  return node.nodeValue === null ? node.childNodes.length : node.nodeValue.length;
}

/**
 * In modern non-IE browsers, we can support both forward and backward
 * selections.
 *
 * Note: IE10+ supports the Selection object, but it does not support
 * the `extend` method, which means that even in modern IE, it's not possible
 * to programatically create a backward selection. Thus, for all IE
 * versions, we use the old IE API to create our selections.
 */
function setDraftEditorSelection(selectionState, node, blockKey, nodeStart, nodeEnd) {
  // It's possible that the editor has been removed from the DOM but
  // our selection code doesn't know it yet. Forcing selection in
  // this case may lead to errors, so just bail now.
  if (!containsNode_1(document.documentElement, node)) {
    return;
  }

  var selection = commonjsGlobal.getSelection();
  var anchorKey = selectionState.getAnchorKey();
  var anchorOffset = selectionState.getAnchorOffset();
  var focusKey = selectionState.getFocusKey();
  var focusOffset = selectionState.getFocusOffset();
  var isBackward = selectionState.getIsBackward();

  // IE doesn't support backward selection. Swap key/offset pairs.
  if (!selection.extend && isBackward) {
    var tempKey = anchorKey;
    var tempOffset = anchorOffset;
    anchorKey = focusKey;
    anchorOffset = focusOffset;
    focusKey = tempKey;
    focusOffset = tempOffset;
    isBackward = false;
  }

  var hasAnchor = anchorKey === blockKey && nodeStart <= anchorOffset && nodeEnd >= anchorOffset;

  var hasFocus = focusKey === blockKey && nodeStart <= focusOffset && nodeEnd >= focusOffset;

  // If the selection is entirely bound within this node, set the selection
  // and be done.
  if (hasAnchor && hasFocus) {
    selection.removeAllRanges();
    addPointToSelection(selection, node, anchorOffset - nodeStart, selectionState);
    addFocusToSelection(selection, node, focusOffset - nodeStart, selectionState);
    return;
  }

  if (!isBackward) {
    // If the anchor is within this node, set the range start.
    if (hasAnchor) {
      selection.removeAllRanges();
      addPointToSelection(selection, node, anchorOffset - nodeStart, selectionState);
    }

    // If the focus is within this node, we can assume that we have
    // already set the appropriate start range on the selection, and
    // can simply extend the selection.
    if (hasFocus) {
      addFocusToSelection(selection, node, focusOffset - nodeStart, selectionState);
    }
  } else {
    // If this node has the focus, set the selection range to be a
    // collapsed range beginning here. Later, when we encounter the anchor,
    // we'll use this information to extend the selection.
    if (hasFocus) {
      selection.removeAllRanges();
      addPointToSelection(selection, node, focusOffset - nodeStart, selectionState);
    }

    // If this node has the anchor, we may assume that the correct
    // focus information is already stored on the selection object.
    // We keep track of it, reset the selection range, and extend it
    // back to the focus point.
    if (hasAnchor) {
      var storedFocusNode = selection.focusNode;
      var storedFocusOffset = selection.focusOffset;

      selection.removeAllRanges();
      addPointToSelection(selection, node, anchorOffset - nodeStart, selectionState);
      addFocusToSelection(selection, storedFocusNode, storedFocusOffset, selectionState);
    }
  }
}

/**
 * Extend selection towards focus point.
 */
function addFocusToSelection(selection, node, offset, selectionState) {
  var activeElement = getActiveElement_1();
  if (selection.extend && containsNode_1(activeElement, node)) {
    // If `extend` is called while another element has focus, an error is
    // thrown. We therefore disable `extend` if the active element is somewhere
    // other than the node we are selecting. This should only occur in Firefox,
    // since it is the only browser to support multiple selections.
    // See https://bugzilla.mozilla.org/show_bug.cgi?id=921444.

    // logging to catch bug that is being reported in t16250795
    if (offset > getNodeLength(node)) {
      // the call to 'selection.extend' is about to throw
      DraftJsDebugLogging.logSelectionStateFailure({
        anonymizedDom: getAnonymizedEditorDOM(node),
        extraParams: JSON.stringify({ offset: offset }),
        selectionState: JSON.stringify(selectionState.toJS())
      });
    }

    // logging to catch bug that is being reported in t18110632
    var nodeWasFocus = node === selection.focusNode;
    try {
      selection.extend(node, offset);
    } catch (e) {
      DraftJsDebugLogging.logSelectionStateFailure({
        anonymizedDom: getAnonymizedEditorDOM(node, function (n) {
          var labels = [];
          if (n === activeElement) {
            labels.push('active element');
          }
          if (n === selection.anchorNode) {
            labels.push('selection anchor node');
          }
          if (n === selection.focusNode) {
            labels.push('selection focus node');
          }
          return labels;
        }),
        extraParams: JSON.stringify({
          activeElementName: activeElement ? activeElement.nodeName : null,
          nodeIsFocus: node === selection.focusNode,
          nodeWasFocus: nodeWasFocus,
          selectionRangeCount: selection.rangeCount,
          selectionAnchorNodeName: selection.anchorNode ? selection.anchorNode.nodeName : null,
          selectionAnchorOffset: selection.anchorOffset,
          selectionFocusNodeName: selection.focusNode ? selection.focusNode.nodeName : null,
          selectionFocusOffset: selection.focusOffset,
          message: e ? '' + e : null,
          offset: offset
        }, null, 2),
        selectionState: JSON.stringify(selectionState.toJS(), null, 2)
      });
      // allow the error to be thrown -
      // better than continuing in a broken state
      throw e;
    }
  } else {
    // IE doesn't support extend. This will mean no backward selection.
    // Extract the existing selection range and add focus to it.
    // Additionally, clone the selection range. IE11 throws an
    // InvalidStateError when attempting to access selection properties
    // after the range is detached.
    var range = selection.getRangeAt(0);
    range.setEnd(node, offset);
    selection.addRange(range.cloneRange());
  }
}

function addPointToSelection(selection, node, offset, selectionState) {
  var range = document.createRange();
  // logging to catch bug that is being reported in t16250795
  if (offset > getNodeLength(node)) {
    // in this case we know that the call to 'range.setStart' is about to throw
    DraftJsDebugLogging.logSelectionStateFailure({
      anonymizedDom: getAnonymizedEditorDOM(node),
      extraParams: JSON.stringify({ offset: offset }),
      selectionState: JSON.stringify(selectionState.toJS())
    });
  }
  range.setStart(node, offset);
  selection.addRange(range);
}

var setDraftEditorSelection_1 = setDraftEditorSelection;

function _classCallCheck$a(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn$7(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits$7(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }








/**
 * All leaf nodes in the editor are spans with single text nodes. Leaf
 * elements are styled based on the merging of an optional custom style map
 * and a default style map.
 *
 * `DraftEditorLeaf` also provides a wrapper for calling into the imperative
 * DOM Selection API. In this way, top-level components can declaratively
 * maintain the selection state.
 */
var DraftEditorLeaf = function (_React$Component) {
  _inherits$7(DraftEditorLeaf, _React$Component);

  function DraftEditorLeaf() {
    _classCallCheck$a(this, DraftEditorLeaf);

    return _possibleConstructorReturn$7(this, _React$Component.apply(this, arguments));
  }

  DraftEditorLeaf.prototype._setSelection = function _setSelection() {
    var selection = this.props.selection;

    // If selection state is irrelevant to the parent block, no-op.

    if (selection == null || !selection.getHasFocus()) {
      return;
    }

    var _props = this.props,
        block = _props.block,
        start = _props.start,
        text = _props.text;

    var blockKey = block.getKey();
    var end = start + text.length;
    if (!selection.hasEdgeWithin(blockKey, start, end)) {
      return;
    }

    // Determine the appropriate target node for selection. If the child
    // is not a text node, it is a <br /> spacer. In this case, use the
    // <span> itself as the selection target.
    var node = reactDom.findDOMNode(this);
    !node ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Missing node') : invariant_1(false) : void 0;
    var child = node.firstChild;
    !child ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Missing child') : invariant_1(false) : void 0;
    var targetNode = void 0;

    if (child.nodeType === Node.TEXT_NODE) {
      targetNode = child;
    } else if (child.tagName === 'BR') {
      targetNode = node;
    } else {
      targetNode = child.firstChild;
      !targetNode ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Missing targetNode') : invariant_1(false) : void 0;
    }

    setDraftEditorSelection_1(selection, targetNode, blockKey, start, end);
  };
  /**
   * By making individual leaf instances aware of their context within
   * the text of the editor, we can set our selection range more
   * easily than we could in the non-React world.
   *
   * Note that this depends on our maintaining tight control over the
   * DOM structure of the DraftEditor component. If leaves had multiple
   * text nodes, this would be harder.
   */

  DraftEditorLeaf.prototype.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {
    var leafNode = reactDom.findDOMNode(this.leaf);
    !leafNode ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Missing leafNode') : invariant_1(false) : void 0;
    return leafNode.textContent !== nextProps.text || nextProps.styleSet !== this.props.styleSet || nextProps.forceSelection;
  };

  DraftEditorLeaf.prototype.componentDidUpdate = function componentDidUpdate() {
    this._setSelection();
  };

  DraftEditorLeaf.prototype.componentDidMount = function componentDidMount() {
    this._setSelection();
  };

  DraftEditorLeaf.prototype.render = function render() {
    var _this2 = this;

    var block = this.props.block;
    var text = this.props.text;

    // If the leaf is at the end of its block and ends in a soft newline, append
    // an extra line feed character. Browsers collapse trailing newline
    // characters, which leaves the cursor in the wrong place after a
    // shift+enter. The extra character repairs this.

    if (text.endsWith('\n') && this.props.isLast) {
      text += '\n';
    }

    var _props2 = this.props,
        customStyleMap = _props2.customStyleMap,
        customStyleFn = _props2.customStyleFn,
        offsetKey = _props2.offsetKey,
        styleSet = _props2.styleSet;

    var styleObj = styleSet.reduce(function (map, styleName) {
      var mergedStyles = {};
      var style = customStyleMap[styleName];

      if (style !== undefined && map.textDecoration !== style.textDecoration) {
        // .trim() is necessary for IE9/10/11 and Edge
        mergedStyles.textDecoration = [map.textDecoration, style.textDecoration].join(' ').trim();
      }

      return objectAssign(map, style, mergedStyles);
    }, {});

    if (customStyleFn) {
      var newStyles = customStyleFn(styleSet, block);
      styleObj = objectAssign(styleObj, newStyles);
    }

    return React.createElement(
      'span',
      {
        'data-offset-key': offsetKey,
        ref: function ref(_ref) {
          return _this2.leaf = _ref;
        },
        style: styleObj },
      React.createElement(
        DraftEditorTextNode_react,
        null,
        text
      )
    );
  };

  return DraftEditorLeaf;
}(React.Component);

var DraftEditorLeaf_react = DraftEditorLeaf;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule DraftOffsetKey
 * @format
 * 
 */

var KEY_DELIMITER = '-';

var DraftOffsetKey = {
  encode: function encode(blockKey, decoratorKey, leafKey) {
    return blockKey + KEY_DELIMITER + decoratorKey + KEY_DELIMITER + leafKey;
  },

  decode: function decode(offsetKey) {
    var _offsetKey$split = offsetKey.split(KEY_DELIMITER),
        blockKey = _offsetKey$split[0],
        decoratorKey = _offsetKey$split[1],
        leafKey = _offsetKey$split[2];

    return {
      blockKey: blockKey,
      decoratorKey: parseInt(decoratorKey, 10),
      leafKey: parseInt(leafKey, 10)
    };
  }
};

var DraftOffsetKey_1 = DraftOffsetKey;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */

/**
 * @param {DOMElement} element
 * @param {DOMDocument} doc
 * @return {boolean}
 */
function _isViewportScrollElement(element, doc) {
  return !!doc && (element === doc.documentElement || element === doc.body);
}

/**
 * Scroll Module. This class contains 4 simple static functions
 * to be used to access Element.scrollTop/scrollLeft properties.
 * To solve the inconsistencies between browsers when either
 * document.body or document.documentElement is supplied,
 * below logic will be used to alleviate the issue:
 *
 * 1. If 'element' is either 'document.body' or 'document.documentElement,
 *    get whichever element's 'scroll{Top,Left}' is larger.
 * 2. If 'element' is either 'document.body' or 'document.documentElement',
 *    set the 'scroll{Top,Left}' on both elements.
 */

var Scroll = {
  /**
   * @param {DOMElement} element
   * @return {number}
   */
  getTop: function getTop(element) {
    var doc = element.ownerDocument;
    return _isViewportScrollElement(element, doc) ?
    // In practice, they will either both have the same value,
    // or one will be zero and the other will be the scroll position
    // of the viewport. So we can use `X || Y` instead of `Math.max(X, Y)`
    doc.body.scrollTop || doc.documentElement.scrollTop : element.scrollTop;
  },

  /**
   * @param {DOMElement} element
   * @param {number} newTop
   */
  setTop: function setTop(element, newTop) {
    var doc = element.ownerDocument;
    if (_isViewportScrollElement(element, doc)) {
      doc.body.scrollTop = doc.documentElement.scrollTop = newTop;
    } else {
      element.scrollTop = newTop;
    }
  },

  /**
   * @param {DOMElement} element
   * @return {number}
   */
  getLeft: function getLeft(element) {
    var doc = element.ownerDocument;
    return _isViewportScrollElement(element, doc) ? doc.body.scrollLeft || doc.documentElement.scrollLeft : element.scrollLeft;
  },

  /**
   * @param {DOMElement} element
   * @param {number} newLeft
   */
  setLeft: function setLeft(element, newLeft) {
    var doc = element.ownerDocument;
    if (_isViewportScrollElement(element, doc)) {
      doc.body.scrollLeft = doc.documentElement.scrollLeft = newLeft;
    } else {
      element.scrollLeft = newLeft;
    }
  }
};

var Scroll_1 = Scroll;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */

var _hyphenPattern = /-(.)/g;

/**
 * Camelcases a hyphenated string, for example:
 *
 *   > camelize('background-color')
 *   < "backgroundColor"
 *
 * @param {string} string
 * @return {string}
 */
function camelize(string) {
  return string.replace(_hyphenPattern, function (_, character) {
    return character.toUpperCase();
  });
}

var camelize_1 = camelize;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */

var _uppercasePattern = /([A-Z])/g;

/**
 * Hyphenates a camelcased string, for example:
 *
 *   > hyphenate('backgroundColor')
 *   < "background-color"
 *
 * For CSS style names, use `hyphenateStyleName` instead which works properly
 * with all vendor prefixes, including `ms`.
 *
 * @param {string} string
 * @return {string}
 */
function hyphenate(string) {
  return string.replace(_uppercasePattern, '-$1').toLowerCase();
}

var hyphenate_1 = hyphenate;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */




function asString(value) /*?string*/{
  return value == null ? value : String(value);
}

function getStyleProperty( /*DOMNode*/node, /*string*/name) /*?string*/{
  var computedStyle = void 0;

  // W3C Standard
  if (window.getComputedStyle) {
    // In certain cases such as within an iframe in FF3, this returns null.
    computedStyle = window.getComputedStyle(node, null);
    if (computedStyle) {
      return asString(computedStyle.getPropertyValue(hyphenate_1(name)));
    }
  }
  // Safari
  if (document.defaultView && document.defaultView.getComputedStyle) {
    computedStyle = document.defaultView.getComputedStyle(node, null);
    // A Safari bug causes this to return null for `display: none` elements.
    if (computedStyle) {
      return asString(computedStyle.getPropertyValue(hyphenate_1(name)));
    }
    if (name === 'display') {
      return 'none';
    }
  }
  // Internet Explorer
  if (node.currentStyle) {
    if (name === 'float') {
      return asString(node.currentStyle.cssFloat || node.currentStyle.styleFloat);
    }
    return asString(node.currentStyle[camelize_1(name)]);
  }
  return asString(node.style && node.style[camelize_1(name)]);
}

var getStyleProperty_1 = getStyleProperty;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */



/**
 * @param {DOMNode} element [description]
 * @param {string} name Overflow style property name.
 * @return {boolean} True if the supplied ndoe is scrollable.
 */
function _isNodeScrollable(element, name) {
  var overflow = Style.get(element, name);
  return overflow === 'auto' || overflow === 'scroll';
}

/**
 * Utilities for querying and mutating style properties.
 */
var Style = {
  /**
   * Gets the style property for the supplied node. This will return either the
   * computed style, if available, or the declared style.
   *
   * @param {DOMNode} node
   * @param {string} name Style property name.
   * @return {?string} Style property value.
   */
  get: getStyleProperty_1,

  /**
   * Determines the nearest ancestor of a node that is scrollable.
   *
   * NOTE: This can be expensive if used repeatedly or on a node nested deeply.
   *
   * @param {?DOMNode} node Node from which to start searching.
   * @return {?DOMWindow|DOMElement} Scroll parent of the supplied node.
   */
  getScrollParent: function getScrollParent(node) {
    if (!node) {
      return null;
    }
    var ownerDocument = node.ownerDocument;
    while (node && node !== ownerDocument.body) {
      if (_isNodeScrollable(node, 'overflow') || _isNodeScrollable(node, 'overflowY') || _isNodeScrollable(node, 'overflowX')) {
        return node;
      }
      node = node.parentNode;
    }
    return ownerDocument.defaultView || ownerDocument.parentWindow;
  }

};

var Style_1 = Style;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */



/**
 * Gets an element's bounding rect in pixels relative to the viewport.
 *
 * @param {DOMElement} elem
 * @return {object}
 */
function getElementRect(elem) {
  var docElem = elem.ownerDocument.documentElement;

  // FF 2, Safari 3 and Opera 9.5- do not support getBoundingClientRect().
  // IE9- will throw if the element is not in the document.
  if (!('getBoundingClientRect' in elem) || !containsNode_1(docElem, elem)) {
    return {
      left: 0,
      right: 0,
      top: 0,
      bottom: 0
    };
  }

  // Subtracts clientTop/Left because IE8- added a 2px border to the
  // <html> element (see http://fburl.com/1493213). IE 7 in
  // Quicksmode does not report clientLeft/clientTop so there
  // will be an unaccounted offset of 2px when in quirksmode
  var rect = elem.getBoundingClientRect();

  return {
    left: Math.round(rect.left) - docElem.clientLeft,
    right: Math.round(rect.right) - docElem.clientLeft,
    top: Math.round(rect.top) - docElem.clientTop,
    bottom: Math.round(rect.bottom) - docElem.clientTop
  };
}

var getElementRect_1 = getElementRect;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */



/**
 * Gets an element's position in pixels relative to the viewport. The returned
 * object represents the position of the element's top left corner.
 *
 * @param {DOMElement} element
 * @return {object}
 */
function getElementPosition(element) {
  var rect = getElementRect_1(element);
  return {
    x: rect.left,
    y: rect.top,
    width: rect.right - rect.left,
    height: rect.bottom - rect.top
  };
}

var getElementPosition_1 = getElementPosition;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */

var isWebkit = typeof navigator !== 'undefined' && navigator.userAgent.indexOf('AppleWebKit') > -1;

/**
 * Gets the element with the document scroll properties such as `scrollLeft` and
 * `scrollHeight`. This may differ across different browsers.
 *
 * NOTE: The return value can be null if the DOM is not yet ready.
 *
 * @param {?DOMDocument} doc Defaults to current document.
 * @return {?DOMElement}
 */
function getDocumentScrollElement(doc) {
  doc = doc || document;
  if (doc.scrollingElement) {
    return doc.scrollingElement;
  }
  return !isWebkit && doc.compatMode === 'CSS1Compat' ? doc.documentElement : doc.body;
}

var getDocumentScrollElement_1 = getDocumentScrollElement;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */

/**
 * Gets the scroll position of the supplied element or window.
 *
 * The return values are unbounded, unlike `getScrollPosition`. This means they
 * may be negative or exceed the element boundaries (which is possible using
 * inertial scrolling).
 *
 * @param {DOMWindow|DOMElement} scrollable
 * @return {object} Map with `x` and `y` keys.
 */

function getUnboundedScrollPosition(scrollable) {
  if (scrollable.Window && scrollable instanceof scrollable.Window) {
    return {
      x: scrollable.pageXOffset || scrollable.document.documentElement.scrollLeft,
      y: scrollable.pageYOffset || scrollable.document.documentElement.scrollTop
    };
  }
  return {
    x: scrollable.scrollLeft,
    y: scrollable.scrollTop
  };
}

var getUnboundedScrollPosition_1 = getUnboundedScrollPosition;

/**
 * Gets the scroll position of the supplied element or window.
 *
 * The return values are bounded. This means that if the scroll position is
 * negative or exceeds the element boundaries (which is possible using inertial
 * scrolling), you will get zero or the maximum scroll position, respectively.
 *
 * If you need the unbound scroll position, use `getUnboundedScrollPosition`.
 *
 * @param {DOMWindow|DOMElement} scrollable
 * @return {object} Map with `x` and `y` keys.
 */
function getScrollPosition(scrollable) {
  var documentScrollElement = getDocumentScrollElement_1(scrollable.ownerDocument || scrollable.document);
  if (scrollable.Window && scrollable instanceof scrollable.Window) {
    scrollable = documentScrollElement;
  }
  var scrollPosition = getUnboundedScrollPosition_1(scrollable);

  var viewport = scrollable === documentScrollElement ? scrollable.ownerDocument.documentElement : scrollable;

  var xMax = scrollable.scrollWidth - viewport.clientWidth;
  var yMax = scrollable.scrollHeight - viewport.clientHeight;

  scrollPosition.x = Math.max(0, Math.min(scrollPosition.x, xMax));
  scrollPosition.y = Math.max(0, Math.min(scrollPosition.y, yMax));

  return scrollPosition;
}

var getScrollPosition_1 = getScrollPosition;

function getViewportWidth() {
  var width = void 0;
  if (document.documentElement) {
    width = document.documentElement.clientWidth;
  }

  if (!width && document.body) {
    width = document.body.clientWidth;
  }

  return width || 0;
} /**
   * Copyright (c) 2013-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   *
   * 
   * @typechecks
   */

function getViewportHeight() {
  var height = void 0;
  if (document.documentElement) {
    height = document.documentElement.clientHeight;
  }

  if (!height && document.body) {
    height = document.body.clientHeight;
  }

  return height || 0;
}

/**
 * Gets the viewport dimensions including any scrollbars.
 */
function getViewportDimensions() {
  return {
    width: window.innerWidth || getViewportWidth(),
    height: window.innerHeight || getViewportHeight()
  };
}

/**
 * Gets the viewport dimensions excluding any scrollbars.
 */
getViewportDimensions.withoutScrollbars = function () {
  return {
    width: getViewportWidth(),
    height: getViewportHeight()
  };
};

var getViewportDimensions_1 = getViewportDimensions;

var _extends$2 = objectAssign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _classCallCheck$b(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn$8(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits$8(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

















var SCROLL_BUFFER = 10;

/**
 * Return whether a block overlaps with either edge of the `SelectionState`.
 */
var isBlockOnSelectionEdge = function isBlockOnSelectionEdge(selection, key) {
  return selection.getAnchorKey() === key || selection.getFocusKey() === key;
};

/**
 * The default block renderer for a `DraftEditor` component.
 *
 * A `DraftEditorBlock` is able to render a given `ContentBlock` to its
 * appropriate decorator and inline style components.
 */

var DraftEditorBlock = function (_React$Component) {
  _inherits$8(DraftEditorBlock, _React$Component);

  function DraftEditorBlock() {
    _classCallCheck$b(this, DraftEditorBlock);

    return _possibleConstructorReturn$8(this, _React$Component.apply(this, arguments));
  }

  DraftEditorBlock.prototype.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {
    return this.props.block !== nextProps.block || this.props.tree !== nextProps.tree || this.props.direction !== nextProps.direction || isBlockOnSelectionEdge(nextProps.selection, nextProps.block.getKey()) && nextProps.forceSelection;
  };

  /**
   * When a block is mounted and overlaps the selection state, we need to make
   * sure that the cursor is visible to match native behavior. This may not
   * be the case if the user has pressed `RETURN` or pasted some content, since
   * programatically creating these new blocks and setting the DOM selection
   * will miss out on the browser natively scrolling to that position.
   *
   * To replicate native behavior, if the block overlaps the selection state
   * on mount, force the scroll position. Check the scroll state of the scroll
   * parent, and adjust it to align the entire block to the bottom of the
   * scroll parent.
   */


  DraftEditorBlock.prototype.componentDidMount = function componentDidMount() {
    var selection = this.props.selection;
    var endKey = selection.getEndKey();
    if (!selection.getHasFocus() || endKey !== this.props.block.getKey()) {
      return;
    }

    var blockNode = reactDom.findDOMNode(this);
    var scrollParent = Style_1.getScrollParent(blockNode);
    var scrollPosition = getScrollPosition_1(scrollParent);
    var scrollDelta = void 0;

    if (scrollParent === window) {
      var nodePosition = getElementPosition_1(blockNode);
      var nodeBottom = nodePosition.y + nodePosition.height;
      var viewportHeight = getViewportDimensions_1().height;
      scrollDelta = nodeBottom - viewportHeight;
      if (scrollDelta > 0) {
        window.scrollTo(scrollPosition.x, scrollPosition.y + scrollDelta + SCROLL_BUFFER);
      }
    } else {
      !(blockNode instanceof HTMLElement) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'blockNode is not an HTMLElement') : invariant_1(false) : void 0;
      var blockBottom = blockNode.offsetHeight + blockNode.offsetTop;
      var scrollBottom = scrollParent.offsetHeight + scrollPosition.y;
      scrollDelta = blockBottom - scrollBottom;
      if (scrollDelta > 0) {
        Scroll_1.setTop(scrollParent, Scroll_1.getTop(scrollParent) + scrollDelta + SCROLL_BUFFER);
      }
    }
  };

  DraftEditorBlock.prototype._renderChildren = function _renderChildren() {
    var _this2 = this;

    var block = this.props.block;
    var blockKey = block.getKey();
    var text = block.getText();
    var lastLeafSet = this.props.tree.size - 1;
    var hasSelection = isBlockOnSelectionEdge(this.props.selection, blockKey);

    return this.props.tree.map(function (leafSet, ii) {
      var leavesForLeafSet = leafSet.get('leaves');
      var lastLeaf = leavesForLeafSet.size - 1;
      var leaves = leavesForLeafSet.map(function (leaf, jj) {
        var offsetKey = DraftOffsetKey_1.encode(blockKey, ii, jj);
        var start = leaf.get('start');
        var end = leaf.get('end');
        return React.createElement(DraftEditorLeaf_react, {
          key: offsetKey,
          offsetKey: offsetKey,
          block: block,
          start: start,
          selection: hasSelection ? _this2.props.selection : null,
          forceSelection: _this2.props.forceSelection,
          text: text.slice(start, end),
          styleSet: block.getInlineStyleAt(start),
          customStyleMap: _this2.props.customStyleMap,
          customStyleFn: _this2.props.customStyleFn,
          isLast: ii === lastLeafSet && jj === lastLeaf
        });
      }).toArray();

      var decoratorKey = leafSet.get('decoratorKey');
      if (decoratorKey == null) {
        return leaves;
      }

      if (!_this2.props.decorator) {
        return leaves;
      }

      var decorator = nullthrows_1(_this2.props.decorator);

      var DecoratorComponent = decorator.getComponentForKey(decoratorKey);
      if (!DecoratorComponent) {
        return leaves;
      }

      var decoratorProps = decorator.getPropsForKey(decoratorKey);
      var decoratorOffsetKey = DraftOffsetKey_1.encode(blockKey, ii, 0);
      var decoratedText = text.slice(leavesForLeafSet.first().get('start'), leavesForLeafSet.last().get('end'));

      // Resetting dir to the same value on a child node makes Chrome/Firefox
      // confused on cursor movement. See http://jsfiddle.net/d157kLck/3/
      var dir = UnicodeBidiDirection_1.getHTMLDirIfDifferent(UnicodeBidi_1.getDirection(decoratedText), _this2.props.direction);

      return React.createElement(
        DecoratorComponent,
        _extends$2({}, decoratorProps, {
          contentState: _this2.props.contentState,
          decoratedText: decoratedText,
          dir: dir,
          key: decoratorOffsetKey,
          entityKey: block.getEntityAt(leafSet.get('start')),
          offsetKey: decoratorOffsetKey }),
        leaves
      );
    }).toArray();
  };

  DraftEditorBlock.prototype.render = function render() {
    var _props = this.props,
        direction = _props.direction,
        offsetKey = _props.offsetKey;

    var className = cx_1({
      'public/DraftStyleDefault/block': true,
      'public/DraftStyleDefault/ltr': direction === 'LTR',
      'public/DraftStyleDefault/rtl': direction === 'RTL'
    });

    return React.createElement(
      'div',
      { 'data-offset-key': offsetKey, className: className },
      this._renderChildren()
    );
  };

  return DraftEditorBlock;
}(React.Component);

var DraftEditorBlock_react = DraftEditorBlock;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks static-only
 */

/**
 * Combines multiple className strings into one.
 * http://jsperf.com/joinclasses-args-vs-array
 *
 * @param {...?string} className
 * @return {string}
 */

function joinClasses(className /*, ... */) {
  if (!className) {
    className = '';
  }
  var nextClass = void 0;
  var argLength = arguments.length;
  if (argLength > 1) {
    for (var ii = 1; ii < argLength; ii++) {
      nextClass = arguments[ii];
      if (nextClass) {
        className = (className ? className + ' ' : '') + nextClass;
      }
    }
  }
  return className;
}

var joinClasses_1 = joinClasses;

var _extends$3 = objectAssign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _classCallCheck$c(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn$9(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits$9(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }










/**
 * Provide default styling for list items. This way, lists will be styled with
 * proper counters and indentation even if the caller does not specify
 * their own styling at all. If more than five levels of nesting are needed,
 * the necessary CSS classes can be provided via `blockStyleFn` configuration.
 */
var getListItemClasses = function getListItemClasses(type, depth, shouldResetCount, direction) {
  return cx_1({
    'public/DraftStyleDefault/unorderedListItem': type === 'unordered-list-item',
    'public/DraftStyleDefault/orderedListItem': type === 'ordered-list-item',
    'public/DraftStyleDefault/reset': shouldResetCount,
    'public/DraftStyleDefault/depth0': depth === 0,
    'public/DraftStyleDefault/depth1': depth === 1,
    'public/DraftStyleDefault/depth2': depth === 2,
    'public/DraftStyleDefault/depth3': depth === 3,
    'public/DraftStyleDefault/depth4': depth === 4,
    'public/DraftStyleDefault/listLTR': direction === 'LTR',
    'public/DraftStyleDefault/listRTL': direction === 'RTL'
  });
};

/**
 * `DraftEditorContents` is the container component for all block components
 * rendered for a `DraftEditor`. It is optimized to aggressively avoid
 * re-rendering blocks whenever possible.
 *
 * This component is separate from `DraftEditor` because certain props
 * (for instance, ARIA props) must be allowed to update without affecting
 * the contents of the editor.
 */

var DraftEditorContents = function (_React$Component) {
  _inherits$9(DraftEditorContents, _React$Component);

  function DraftEditorContents() {
    _classCallCheck$c(this, DraftEditorContents);

    return _possibleConstructorReturn$9(this, _React$Component.apply(this, arguments));
  }

  DraftEditorContents.prototype.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {
    var prevEditorState = this.props.editorState;
    var nextEditorState = nextProps.editorState;

    var prevDirectionMap = prevEditorState.getDirectionMap();
    var nextDirectionMap = nextEditorState.getDirectionMap();

    // Text direction has changed for one or more blocks. We must re-render.
    if (prevDirectionMap !== nextDirectionMap) {
      return true;
    }

    var didHaveFocus = prevEditorState.getSelection().getHasFocus();
    var nowHasFocus = nextEditorState.getSelection().getHasFocus();

    if (didHaveFocus !== nowHasFocus) {
      return true;
    }

    var nextNativeContent = nextEditorState.getNativelyRenderedContent();

    var wasComposing = prevEditorState.isInCompositionMode();
    var nowComposing = nextEditorState.isInCompositionMode();

    // If the state is unchanged or we're currently rendering a natively
    // rendered state, there's nothing new to be done.
    if (prevEditorState === nextEditorState || nextNativeContent !== null && nextEditorState.getCurrentContent() === nextNativeContent || wasComposing && nowComposing) {
      return false;
    }

    var prevContent = prevEditorState.getCurrentContent();
    var nextContent = nextEditorState.getCurrentContent();
    var prevDecorator = prevEditorState.getDecorator();
    var nextDecorator = nextEditorState.getDecorator();
    return wasComposing !== nowComposing || prevContent !== nextContent || prevDecorator !== nextDecorator || nextEditorState.mustForceSelection();
  };

  DraftEditorContents.prototype.render = function render() {
    var _props = this.props,
        blockRenderMap = _props.blockRenderMap,
        blockRendererFn = _props.blockRendererFn,
        blockStyleFn = _props.blockStyleFn,
        customStyleMap = _props.customStyleMap,
        customStyleFn = _props.customStyleFn,
        editorState = _props.editorState,
        editorKey = _props.editorKey,
        textDirectionality = _props.textDirectionality;


    var content = editorState.getCurrentContent();
    var selection = editorState.getSelection();
    var forceSelection = editorState.mustForceSelection();
    var decorator = editorState.getDecorator();
    var directionMap = nullthrows_1(editorState.getDirectionMap());

    var blocksAsArray = content.getBlocksAsArray();
    var processedBlocks = [];

    var currentDepth = null;
    var lastWrapperTemplate = null;

    for (var ii = 0; ii < blocksAsArray.length; ii++) {
      var _block = blocksAsArray[ii];
      var key = _block.getKey();
      var blockType = _block.getType();

      var customRenderer = blockRendererFn(_block);
      var CustomComponent = void 0,
          customProps = void 0,
          customEditable = void 0;
      if (customRenderer) {
        CustomComponent = customRenderer.component;
        customProps = customRenderer.props;
        customEditable = customRenderer.editable;
      }

      var direction = textDirectionality ? textDirectionality : directionMap.get(key);
      var offsetKey = DraftOffsetKey_1.encode(key, 0, 0);
      var componentProps = {
        contentState: content,
        block: _block,
        blockProps: customProps,
        blockStyleFn: blockStyleFn,
        customStyleMap: customStyleMap,
        customStyleFn: customStyleFn,
        decorator: decorator,
        direction: direction,
        forceSelection: forceSelection,
        key: key,
        offsetKey: offsetKey,
        selection: selection,
        tree: editorState.getBlockTree(key)
      };

      var configForType = blockRenderMap.get(blockType) || blockRenderMap.get('unstyled');
      var wrapperTemplate = configForType.wrapper;

      var Element = configForType.element || blockRenderMap.get('unstyled').element;

      var depth = _block.getDepth();
      var className = '';
      if (blockStyleFn) {
        className = blockStyleFn(_block);
      }

      // List items are special snowflakes, since we handle nesting and
      // counters manually.
      if (Element === 'li') {
        var shouldResetCount = lastWrapperTemplate !== wrapperTemplate || currentDepth === null || depth > currentDepth;
        className = joinClasses_1(className, getListItemClasses(blockType, depth, shouldResetCount, direction));
      }

      var Component = CustomComponent || DraftEditorBlock_react;
      var childProps = {
        className: className,
        'data-block': true,
        'data-editor': editorKey,
        'data-offset-key': offsetKey,
        key: key
      };
      if (customEditable !== undefined) {
        childProps = _extends$3({}, childProps, {
          contentEditable: customEditable,
          suppressContentEditableWarning: true
        });
      }

      var child = React.createElement(Element, childProps, React.createElement(Component, componentProps));

      processedBlocks.push({
        block: child,
        wrapperTemplate: wrapperTemplate,
        key: key,
        offsetKey: offsetKey
      });

      if (wrapperTemplate) {
        currentDepth = _block.getDepth();
      } else {
        currentDepth = null;
      }
      lastWrapperTemplate = wrapperTemplate;
    }

    // Group contiguous runs of blocks that have the same wrapperTemplate
    var outputBlocks = [];
    for (var _ii = 0; _ii < processedBlocks.length;) {
      var info = processedBlocks[_ii];
      if (info.wrapperTemplate) {
        var blocks = [];
        do {
          blocks.push(processedBlocks[_ii].block);
          _ii++;
        } while (_ii < processedBlocks.length && processedBlocks[_ii].wrapperTemplate === info.wrapperTemplate);
        var wrapperElement = React.cloneElement(info.wrapperTemplate, {
          key: info.key + '-wrap',
          'data-offset-key': info.offsetKey
        }, blocks);
        outputBlocks.push(wrapperElement);
      } else {
        outputBlocks.push(info.block);
        _ii++;
      }
    }

    return React.createElement(
      'div',
      { 'data-contents': 'true' },
      outputBlocks
    );
  };

  return DraftEditorContents;
}(React.Component);

var DraftEditorContentsCore_react = DraftEditorContents;

var DraftEditorContents_react = DraftEditorContentsCore_react;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */
var PhotosMimeType = {
  isImage: function isImage(mimeString) {
    return getParts(mimeString)[0] === 'image';
  },
  isJpeg: function isJpeg(mimeString) {
    var parts = getParts(mimeString);
    return PhotosMimeType.isImage(mimeString) && (
    // see http://fburl.com/10972194
    parts[1] === 'jpeg' || parts[1] === 'pjpeg');
  }
};

function getParts(mimeString) {
  return mimeString.split('/');
}

var PhotosMimeType_1 = PhotosMimeType;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */



/**
 * Convert array-like objects to arrays.
 *
 * This API assumes the caller knows the contents of the data type. For less
 * well defined inputs use createArrayFromMixed.
 *
 * @param {object|function|filelist} obj
 * @return {array}
 */
function toArray(obj) {
  var length = obj.length;

  // Some browsers builtin objects can report typeof 'function' (e.g. NodeList
  // in old versions of Safari).
  !(!Array.isArray(obj) && (typeof obj === 'object' || typeof obj === 'function')) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'toArray: Array-like object expected') : invariant_1(false) : void 0;

  !(typeof length === 'number') ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'toArray: Object needs a length property') : invariant_1(false) : void 0;

  !(length === 0 || length - 1 in obj) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'toArray: Object should have keys for indices') : invariant_1(false) : void 0;

  !(typeof obj.callee !== 'function') ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'toArray: Object can\'t be `arguments`. Use rest params ' + '(function(...args) {}) or Array.from() instead.') : invariant_1(false) : void 0;

  // Old IE doesn't give collections access to hasOwnProperty. Assume inputs
  // without method will throw during the slice call and skip straight to the
  // fallback.
  if (obj.hasOwnProperty) {
    try {
      return Array.prototype.slice.call(obj);
    } catch (e) {
      // IE < 9 does not support Array#slice on collections objects
    }
  }

  // Fall back to copying key by key. This assumes all keys have a value,
  // so will not preserve sparsely populated inputs.
  var ret = Array(length);
  for (var ii = 0; ii < length; ii++) {
    ret[ii] = obj[ii];
  }
  return ret;
}

/**
 * Perform a heuristic test to determine if an object is "array-like".
 *
 *   A monk asked Joshu, a Zen master, "Has a dog Buddha nature?"
 *   Joshu replied: "Mu."
 *
 * This function determines if its argument has "array nature": it returns
 * true if the argument is an actual array, an `arguments' object, or an
 * HTMLCollection (e.g. node.childNodes or node.getElementsByTagName()).
 *
 * It will return false for other array-like objects like Filelist.
 *
 * @param {*} obj
 * @return {boolean}
 */
function hasArrayNature(obj) {
  return (
    // not null/false
    !!obj && (
    // arrays are objects, NodeLists are functions in Safari
    typeof obj == 'object' || typeof obj == 'function') &&
    // quacks like an array
    'length' in obj &&
    // not window
    !('setInterval' in obj) &&
    // no DOM node should be considered an array-like
    // a 'select' element has 'length' and 'item' properties on IE8
    typeof obj.nodeType != 'number' && (
    // a real array
    Array.isArray(obj) ||
    // arguments
    'callee' in obj ||
    // HTMLCollection/NodeList
    'item' in obj)
  );
}

/**
 * Ensure that the argument is an array by wrapping it in an array if it is not.
 * Creates a copy of the argument if it is already an array.
 *
 * This is mostly useful idiomatically:
 *
 *   var createArrayFromMixed = require('createArrayFromMixed');
 *
 *   function takesOneOrMoreThings(things) {
 *     things = createArrayFromMixed(things);
 *     ...
 *   }
 *
 * This allows you to treat `things' as an array, but accept scalars in the API.
 *
 * If you need to convert an array-like object, like `arguments`, into an array
 * use toArray instead.
 *
 * @param {*} obj
 * @return {array}
 */
function createArrayFromMixed(obj) {
  if (!hasArrayNature(obj)) {
    return [obj];
  } else if (Array.isArray(obj)) {
    return obj.slice();
  } else {
    return toArray(obj);
  }
}

var createArrayFromMixed_1 = createArrayFromMixed;

function _classCallCheck$d(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 */






var CR_LF_REGEX = new RegExp('\r\n', 'g');
var LF_ONLY = '\n';

var RICH_TEXT_TYPES = {
  'text/rtf': 1,
  'text/html': 1
};

/**
 * If DataTransferItem is a file then return the Blob of data.
 *
 * @param {object} item
 * @return {?blob}
 */
function getFileFromDataTransfer(item) {
  if (item.kind == 'file') {
    return item.getAsFile();
  }
}

var DataTransfer$1 = function () {
  /**
   * @param {object} data
   */
  function DataTransfer(data) {
    _classCallCheck$d(this, DataTransfer);

    this.data = data;

    // Types could be DOMStringList or array
    this.types = data.types ? createArrayFromMixed_1(data.types) : [];
  }

  /**
   * Is this likely to be a rich text data transfer?
   *
   * @return {boolean}
   */


  DataTransfer.prototype.isRichText = function isRichText() {
    // If HTML is available, treat this data as rich text. This way, we avoid
    // using a pasted image if it is packaged with HTML -- this may occur with
    // pastes from MS Word, for example.  However this is only rich text if
    // there's accompanying text.
    if (this.getHTML() && this.getText()) {
      return true;
    }

    // When an image is copied from a preview window, you end up with two
    // DataTransferItems one of which is a file's metadata as text.  Skip those.
    if (this.isImage()) {
      return false;
    }

    return this.types.some(function (type) {
      return RICH_TEXT_TYPES[type];
    });
  };

  /**
   * Get raw text.
   *
   * @return {?string}
   */


  DataTransfer.prototype.getText = function getText() {
    var text;
    if (this.data.getData) {
      if (!this.types.length) {
        text = this.data.getData('Text');
      } else if (this.types.indexOf('text/plain') != -1) {
        text = this.data.getData('text/plain');
      }
    }
    return text ? text.replace(CR_LF_REGEX, LF_ONLY) : null;
  };

  /**
   * Get HTML paste data
   *
   * @return {?string}
   */


  DataTransfer.prototype.getHTML = function getHTML() {
    if (this.data.getData) {
      if (!this.types.length) {
        return this.data.getData('Text');
      } else if (this.types.indexOf('text/html') != -1) {
        return this.data.getData('text/html');
      }
    }
  };

  /**
   * Is this a link data transfer?
   *
   * @return {boolean}
   */


  DataTransfer.prototype.isLink = function isLink() {
    return this.types.some(function (type) {
      return type.indexOf('Url') != -1 || type.indexOf('text/uri-list') != -1 || type.indexOf('text/x-moz-url');
    });
  };

  /**
   * Get a link url.
   *
   * @return {?string}
   */


  DataTransfer.prototype.getLink = function getLink() {
    if (this.data.getData) {
      if (this.types.indexOf('text/x-moz-url') != -1) {
        var url = this.data.getData('text/x-moz-url').split('\n');
        return url[0];
      }
      return this.types.indexOf('text/uri-list') != -1 ? this.data.getData('text/uri-list') : this.data.getData('url');
    }

    return null;
  };

  /**
   * Is this an image data transfer?
   *
   * @return {boolean}
   */


  DataTransfer.prototype.isImage = function isImage() {
    var isImage = this.types.some(function (type) {
      // Firefox will have a type of application/x-moz-file for images during
      // dragging
      return type.indexOf('application/x-moz-file') != -1;
    });

    if (isImage) {
      return true;
    }

    var items = this.getFiles();
    for (var i = 0; i < items.length; i++) {
      var type = items[i].type;
      if (!PhotosMimeType_1.isImage(type)) {
        return false;
      }
    }

    return true;
  };

  DataTransfer.prototype.getCount = function getCount() {
    if (this.data.hasOwnProperty('items')) {
      return this.data.items.length;
    } else if (this.data.hasOwnProperty('mozItemCount')) {
      return this.data.mozItemCount;
    } else if (this.data.files) {
      return this.data.files.length;
    }
    return null;
  };

  /**
   * Get files.
   *
   * @return {array}
   */


  DataTransfer.prototype.getFiles = function getFiles() {
    if (this.data.items) {
      // createArrayFromMixed doesn't properly handle DataTransferItemLists.
      return Array.prototype.slice.call(this.data.items).map(getFileFromDataTransfer).filter(emptyFunction_1.thatReturnsArgument);
    } else if (this.data.files) {
      return Array.prototype.slice.call(this.data.files);
    } else {
      return [];
    }
  };

  /**
   * Are there any files to fetch?
   *
   * @return {boolean}
   */


  DataTransfer.prototype.hasFiles = function hasFiles() {
    return this.getFiles().length > 0;
  };

  return DataTransfer;
}();

var DataTransfer_1 = DataTransfer$1;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getSelectionOffsetKeyForNode
 * @format
 * 
 */

/**
 * Get offset key from a node or it's child nodes. Return the first offset key
 * found on the DOM tree of given node.
 */

function getSelectionOffsetKeyForNode(node) {
  if (node instanceof Element) {
    var offsetKey = node.getAttribute('data-offset-key');
    if (offsetKey) {
      return offsetKey;
    }
    for (var ii = 0; ii < node.childNodes.length; ii++) {
      var childOffsetKey = getSelectionOffsetKeyForNode(node.childNodes[ii]);
      if (childOffsetKey) {
        return childOffsetKey;
      }
    }
  }
  return null;
}

var getSelectionOffsetKeyForNode_1 = getSelectionOffsetKeyForNode;

/**
 * Get the key from the node's nearest offset-aware ancestor.
 */
function findAncestorOffsetKey(node) {
  var searchNode = node;
  while (searchNode && searchNode !== document.documentElement) {
    var key = getSelectionOffsetKeyForNode_1(searchNode);
    if (key != null) {
      return key;
    }
    searchNode = searchNode.parentNode;
  }
  return null;
}

var findAncestorOffsetKey_1 = findAncestorOffsetKey;

var TEXT_CLIPPING_REGEX = /\.textClipping$/;

var TEXT_TYPES = {
  'text/plain': true,
  'text/html': true,
  'text/rtf': true
};

// Somewhat arbitrary upper bound on text size. Let's not lock up the browser.
var TEXT_SIZE_UPPER_BOUND = 5000;

/**
 * Extract the text content from a file list.
 */
function getTextContentFromFiles(files, callback) {
  var readCount = 0;
  var results = [];
  files.forEach(function ( /*blob*/file) {
    readFile(file, function ( /*string*/text) {
      readCount++;
      text && results.push(text.slice(0, TEXT_SIZE_UPPER_BOUND));
      if (readCount == files.length) {
        callback(results.join('\r'));
      }
    });
  });
}

/**
 * todo isaac: Do work to turn html/rtf into a content fragment.
 */
function readFile(file, callback) {
  if (!commonjsGlobal.FileReader || file.type && !(file.type in TEXT_TYPES)) {
    callback('');
    return;
  }

  if (file.type === '') {
    var contents = '';
    // Special-case text clippings, which have an empty type but include
    // `.textClipping` in the file name. `readAsText` results in an empty
    // string for text clippings, so we force the file name to serve
    // as the text value for the file.
    if (TEXT_CLIPPING_REGEX.test(file.name)) {
      contents = file.name.replace(TEXT_CLIPPING_REGEX, '');
    }
    callback(contents);
    return;
  }

  var reader = new FileReader();
  reader.onload = function () {
    var result = reader.result;
    !(typeof result === 'string') ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'We should be calling "FileReader.readAsText" which returns a string') : invariant_1(false) : void 0;
    callback(result);
  };
  reader.onerror = function () {
    callback('');
  };
  reader.readAsText(file);
}

var getTextContentFromFiles_1 = getTextContentFromFiles;

function getUpdatedSelectionState(editorState, anchorKey, anchorOffset, focusKey, focusOffset) {
  var selection = nullthrows_1(editorState.getSelection());
  if (process.env.NODE_ENV !== 'production') {
    if (!anchorKey || !focusKey) {
      /*eslint-disable no-console */
      console.warn('Invalid selection state.', arguments, editorState.toJS());
      /*eslint-enable no-console */
      return selection;
    }
  }

  var anchorPath = DraftOffsetKey_1.decode(anchorKey);
  var anchorBlockKey = anchorPath.blockKey;
  var anchorLeaf = editorState.getBlockTree(anchorBlockKey).getIn([anchorPath.decoratorKey, 'leaves', anchorPath.leafKey]);

  var focusPath = DraftOffsetKey_1.decode(focusKey);
  var focusBlockKey = focusPath.blockKey;
  var focusLeaf = editorState.getBlockTree(focusBlockKey).getIn([focusPath.decoratorKey, 'leaves', focusPath.leafKey]);

  var anchorLeafStart = anchorLeaf.get('start');
  var focusLeafStart = focusLeaf.get('start');

  var anchorBlockOffset = anchorLeaf ? anchorLeafStart + anchorOffset : null;
  var focusBlockOffset = focusLeaf ? focusLeafStart + focusOffset : null;

  var areEqual = selection.getAnchorKey() === anchorBlockKey && selection.getAnchorOffset() === anchorBlockOffset && selection.getFocusKey() === focusBlockKey && selection.getFocusOffset() === focusBlockOffset;

  if (areEqual) {
    return selection;
  }

  var isBackward = false;
  if (anchorBlockKey === focusBlockKey) {
    var anchorLeafEnd = anchorLeaf.get('end');
    var focusLeafEnd = focusLeaf.get('end');
    if (focusLeafStart === anchorLeafStart && focusLeafEnd === anchorLeafEnd) {
      isBackward = focusOffset < anchorOffset;
    } else {
      isBackward = focusLeafStart < anchorLeafStart;
    }
  } else {
    var startKey = editorState.getCurrentContent().getBlockMap().keySeq().skipUntil(function (v) {
      return v === anchorBlockKey || v === focusBlockKey;
    }).first();
    isBackward = startKey === focusBlockKey;
  }

  return selection.merge({
    anchorKey: anchorBlockKey,
    anchorOffset: anchorBlockOffset,
    focusKey: focusBlockKey,
    focusOffset: focusBlockOffset,
    isBackward: isBackward
  });
}

var getUpdatedSelectionState_1 = getUpdatedSelectionState;

/**
 * Get a SelectionState for the supplied mouse event.
 */
function getSelectionForEvent(event, editorState) {
  var node = null;
  var offset = null;

  if (typeof document.caretRangeFromPoint === 'function') {
    var dropRange = document.caretRangeFromPoint(event.x, event.y);
    node = dropRange.startContainer;
    offset = dropRange.startOffset;
  } else if (event.rangeParent) {
    node = event.rangeParent;
    offset = event.rangeOffset;
  } else {
    return null;
  }

  node = nullthrows_1(node);
  offset = nullthrows_1(offset);
  var offsetKey = nullthrows_1(findAncestorOffsetKey_1(node));

  return getUpdatedSelectionState_1(editorState, offsetKey, offset, offsetKey, offset);
}

var DraftEditorDragHandler = {
  /**
   * Drag originating from input terminated.
   */
  onDragEnd: function onDragEnd(editor) {
    editor.exitCurrentMode();
  },

  /**
   * Handle data being dropped.
   */
  onDrop: function onDrop(editor, e) {
    var data = new DataTransfer_1(e.nativeEvent.dataTransfer);

    var editorState = editor._latestEditorState;
    var dropSelection = getSelectionForEvent(e.nativeEvent, editorState);

    e.preventDefault();
    editor.exitCurrentMode();

    if (dropSelection == null) {
      return;
    }

    var files = data.getFiles();
    if (files.length > 0) {
      if (editor.props.handleDroppedFiles && isEventHandled_1(editor.props.handleDroppedFiles(dropSelection, files))) {
        return;
      }

      getTextContentFromFiles_1(files, function (fileText) {
        fileText && editor.update(insertTextAtSelection(editorState, dropSelection, fileText));
      });
      return;
    }

    var dragType = editor._internalDrag ? 'internal' : 'external';
    if (editor.props.handleDrop && isEventHandled_1(editor.props.handleDrop(dropSelection, data, dragType))) {
      return;
    }

    if (editor._internalDrag) {
      editor.update(moveText(editorState, dropSelection));
      return;
    }

    editor.update(insertTextAtSelection(editorState, dropSelection, data.getText()));
  }
};

function moveText(editorState, targetSelection) {
  var newContentState = DraftModifier_1.moveText(editorState.getCurrentContent(), editorState.getSelection(), targetSelection);
  return EditorState_1.push(editorState, newContentState, 'insert-fragment');
}

/**
 * Insert text at a specified selection.
 */
function insertTextAtSelection(editorState, selection, text) {
  var newContentState = DraftModifier_1.insertText(editorState.getCurrentContent(), selection, text, editorState.getCurrentInlineStyle());
  return EditorState_1.push(editorState, newContentState, 'insert-fragment');
}

var DraftEditorDragHandler_1 = DraftEditorDragHandler;

(function (global, undefined$1) {

    if (global.setImmediate) {
        return;
    }

    var nextHandle = 1; // Spec says greater than zero
    var tasksByHandle = {};
    var currentlyRunningATask = false;
    var doc = global.document;
    var registerImmediate;

    function setImmediate(callback) {
      // Callback can either be a function or a string
      if (typeof callback !== "function") {
        callback = new Function("" + callback);
      }
      // Copy function arguments
      var args = new Array(arguments.length - 1);
      for (var i = 0; i < args.length; i++) {
          args[i] = arguments[i + 1];
      }
      // Store and register the task
      var task = { callback: callback, args: args };
      tasksByHandle[nextHandle] = task;
      registerImmediate(nextHandle);
      return nextHandle++;
    }

    function clearImmediate(handle) {
        delete tasksByHandle[handle];
    }

    function run(task) {
        var callback = task.callback;
        var args = task.args;
        switch (args.length) {
        case 0:
            callback();
            break;
        case 1:
            callback(args[0]);
            break;
        case 2:
            callback(args[0], args[1]);
            break;
        case 3:
            callback(args[0], args[1], args[2]);
            break;
        default:
            callback.apply(undefined$1, args);
            break;
        }
    }

    function runIfPresent(handle) {
        // From the spec: "Wait until any invocations of this algorithm started before this one have completed."
        // So if we're currently running a task, we'll need to delay this invocation.
        if (currentlyRunningATask) {
            // Delay by doing a setTimeout. setImmediate was tried instead, but in Firefox 7 it generated a
            // "too much recursion" error.
            setTimeout(runIfPresent, 0, handle);
        } else {
            var task = tasksByHandle[handle];
            if (task) {
                currentlyRunningATask = true;
                try {
                    run(task);
                } finally {
                    clearImmediate(handle);
                    currentlyRunningATask = false;
                }
            }
        }
    }

    function installNextTickImplementation() {
        registerImmediate = function(handle) {
            process.nextTick(function () { runIfPresent(handle); });
        };
    }

    function canUsePostMessage() {
        // The test against `importScripts` prevents this implementation from being installed inside a web worker,
        // where `global.postMessage` means something completely different and can't be used for this purpose.
        if (global.postMessage && !global.importScripts) {
            var postMessageIsAsynchronous = true;
            var oldOnMessage = global.onmessage;
            global.onmessage = function() {
                postMessageIsAsynchronous = false;
            };
            global.postMessage("", "*");
            global.onmessage = oldOnMessage;
            return postMessageIsAsynchronous;
        }
    }

    function installPostMessageImplementation() {
        // Installs an event handler on `global` for the `message` event: see
        // * https://developer.mozilla.org/en/DOM/window.postMessage
        // * http://www.whatwg.org/specs/web-apps/current-work/multipage/comms.html#crossDocumentMessages

        var messagePrefix = "setImmediate$" + Math.random() + "$";
        var onGlobalMessage = function(event) {
            if (event.source === global &&
                typeof event.data === "string" &&
                event.data.indexOf(messagePrefix) === 0) {
                runIfPresent(+event.data.slice(messagePrefix.length));
            }
        };

        if (global.addEventListener) {
            global.addEventListener("message", onGlobalMessage, false);
        } else {
            global.attachEvent("onmessage", onGlobalMessage);
        }

        registerImmediate = function(handle) {
            global.postMessage(messagePrefix + handle, "*");
        };
    }

    function installMessageChannelImplementation() {
        var channel = new MessageChannel();
        channel.port1.onmessage = function(event) {
            var handle = event.data;
            runIfPresent(handle);
        };

        registerImmediate = function(handle) {
            channel.port2.postMessage(handle);
        };
    }

    function installReadyStateChangeImplementation() {
        var html = doc.documentElement;
        registerImmediate = function(handle) {
            // Create a <script> element; its readystatechange event will be fired asynchronously once it is inserted
            // into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.
            var script = doc.createElement("script");
            script.onreadystatechange = function () {
                runIfPresent(handle);
                script.onreadystatechange = null;
                html.removeChild(script);
                script = null;
            };
            html.appendChild(script);
        };
    }

    function installSetTimeoutImplementation() {
        registerImmediate = function(handle) {
            setTimeout(runIfPresent, 0, handle);
        };
    }

    // If supported, we should attach to the prototype of global, since that is where setTimeout et al. live.
    var attachTo = Object.getPrototypeOf && Object.getPrototypeOf(global);
    attachTo = attachTo && attachTo.setTimeout ? attachTo : global;

    // Don't get fooled by e.g. browserify environments.
    if ({}.toString.call(global.process) === "[object process]") {
        // For Node.js before 0.9
        installNextTickImplementation();

    } else if (canUsePostMessage()) {
        // For non-IE10 modern browsers
        installPostMessageImplementation();

    } else if (global.MessageChannel) {
        // For web workers, where supported
        installMessageChannelImplementation();

    } else if (doc && "onreadystatechange" in doc.createElement("script")) {
        // For IE 6–8
        installReadyStateChangeImplementation();

    } else {
        // For older browsers
        installSetTimeoutImplementation();
    }

    attachTo.setImmediate = setImmediate;
    attachTo.clearImmediate = clearImmediate;
}(typeof self === "undefined" ? typeof commonjsGlobal === "undefined" ? commonjsGlobal : commonjsGlobal : self));

// setimmediate adds setImmediate to the global. We want to make sure we export
// the actual function.


var setImmediate = commonjsGlobal.setImmediate;

// When nothing is focused, Firefox regards two characters, `'` and `/`, as
// commands that should open and focus the "quickfind" search bar. This should
// *never* happen while a contenteditable is focused, but as of v28, it
// sometimes does, even when the keypress event target is the contenteditable.
// This breaks the input. Special case these characters to ensure that when
// they are typed, we prevent default on the event to make sure not to
// trigger quickfind.
var FF_QUICKFIND_CHAR = "'";
var FF_QUICKFIND_LINK_CHAR = '/';
var isFirefox = UserAgent_1.isBrowser('Firefox');

function mustPreventDefaultForCharacter(character) {
  return isFirefox && (character == FF_QUICKFIND_CHAR || character == FF_QUICKFIND_LINK_CHAR);
}

/**
 * Replace the current selection with the specified text string, with the
 * inline style and entity key applied to the newly inserted text.
 */
function replaceText(editorState, text, inlineStyle, entityKey) {
  var contentState = DraftModifier_1.replaceText(editorState.getCurrentContent(), editorState.getSelection(), text, inlineStyle, entityKey);
  return EditorState_1.push(editorState, contentState, 'insert-characters');
}

/**
 * When `onBeforeInput` executes, the browser is attempting to insert a
 * character into the editor. Apply this character data to the document,
 * allowing native insertion if possible.
 *
 * Native insertion is encouraged in order to limit re-rendering and to
 * preserve spellcheck highlighting, which disappears or flashes if re-render
 * occurs on the relevant text nodes.
 */
function editOnBeforeInput(editor, e) {
  if (editor._pendingStateFromBeforeInput !== undefined) {
    editor.update(editor._pendingStateFromBeforeInput);
    editor._pendingStateFromBeforeInput = undefined;
  }

  var editorState = editor._latestEditorState;

  var chars = e.data;

  // In some cases (ex: IE ideographic space insertion) no character data
  // is provided. There's nothing to do when this happens.
  if (!chars) {
    return;
  }

  // Allow the top-level component to handle the insertion manually. This is
  // useful when triggering interesting behaviors for a character insertion,
  // Simple examples: replacing a raw text ':)' with a smile emoji or image
  // decorator, or setting a block to be a list item after typing '- ' at the
  // start of the block.
  if (editor.props.handleBeforeInput && isEventHandled_1(editor.props.handleBeforeInput(chars, editorState))) {
    e.preventDefault();
    return;
  }

  // If selection is collapsed, conditionally allow native behavior. This
  // reduces re-renders and preserves spellcheck highlighting. If the selection
  // is not collapsed, we will re-render.
  var selection = editorState.getSelection();
  var selectionStart = selection.getStartOffset();
  var selectionEnd = selection.getEndOffset();
  var anchorKey = selection.getAnchorKey();

  if (!selection.isCollapsed()) {
    e.preventDefault();

    // If the currently selected text matches what the user is trying to
    // replace it with, let's just update the `SelectionState`. If not, update
    // the `ContentState` with the new text.
    var currentlySelectedChars = editorState.getCurrentContent().getPlainText().slice(selectionStart, selectionEnd);
    if (chars === currentlySelectedChars) {
      editor.update(EditorState_1.forceSelection(editorState, selection.merge({
        focusOffset: selectionEnd
      })));
    } else {
      editor.update(replaceText(editorState, chars, editorState.getCurrentInlineStyle(), getEntityKeyForSelection_1(editorState.getCurrentContent(), editorState.getSelection())));
    }
    return;
  }

  var newEditorState = replaceText(editorState, chars, editorState.getCurrentInlineStyle(), getEntityKeyForSelection_1(editorState.getCurrentContent(), editorState.getSelection()));

  // Bunch of different cases follow where we need to prevent native insertion.
  var mustPreventNative = false;
  if (!mustPreventNative) {
    // Browsers tend to insert text in weird places in the DOM when typing at
    // the start of a leaf, so we'll handle it ourselves.
    mustPreventNative = isSelectionAtLeafStart_1(editor._latestCommittedEditorState);
  }
  if (!mustPreventNative) {
    // Chrome will also split up a node into two pieces if it contains a Tab
    // char, for no explicable reason. Seemingly caused by this commit:
    // https://chromium.googlesource.com/chromium/src/+/013ac5eaf3%5E%21/
    var nativeSelection = commonjsGlobal.getSelection();
    // Selection is necessarily collapsed at this point due to earlier check.
    if (nativeSelection.anchorNode && nativeSelection.anchorNode.nodeType === Node.TEXT_NODE) {
      // See isTabHTMLSpanElement in chromium EditingUtilities.cpp.
      var parentNode = nativeSelection.anchorNode.parentNode;
      mustPreventNative = parentNode.nodeName === 'SPAN' && parentNode.firstChild.nodeType === Node.TEXT_NODE && parentNode.firstChild.nodeValue.indexOf('\t') !== -1;
    }
  }
  if (!mustPreventNative) {
    // Check the old and new "fingerprints" of the current block to determine
    // whether this insertion requires any addition or removal of text nodes,
    // in which case we would prevent the native character insertion.
    var originalFingerprint = BlockTree_1.getFingerprint(editorState.getBlockTree(anchorKey));
    var newFingerprint = BlockTree_1.getFingerprint(newEditorState.getBlockTree(anchorKey));
    mustPreventNative = originalFingerprint !== newFingerprint;
  }
  if (!mustPreventNative) {
    mustPreventNative = mustPreventDefaultForCharacter(chars);
  }
  if (!mustPreventNative) {
    mustPreventNative = nullthrows_1(newEditorState.getDirectionMap()).get(anchorKey) !== nullthrows_1(editorState.getDirectionMap()).get(anchorKey);
  }

  if (mustPreventNative) {
    e.preventDefault();
    editor.update(newEditorState);
    return;
  }

  // We made it all the way! Let the browser do its thing and insert the char.
  newEditorState = EditorState_1.set(newEditorState, {
    nativelyRenderedContent: newEditorState.getCurrentContent()
  });
  // The native event is allowed to occur. To allow user onChange handlers to
  // change the inserted text, we wait until the text is actually inserted
  // before we actually update our state. That way when we rerender, the text
  // we see in the DOM will already have been inserted properly.
  editor._pendingStateFromBeforeInput = newEditorState;
  setImmediate(function () {
    if (editor._pendingStateFromBeforeInput !== undefined) {
      editor.update(editor._pendingStateFromBeforeInput);
      editor._pendingStateFromBeforeInput = undefined;
    }
  });
}

var editOnBeforeInput_1 = editOnBeforeInput;

function editOnBlur(editor, e) {
  // In a contentEditable element, when you select a range and then click
  // another active element, this does trigger a `blur` event but will not
  // remove the DOM selection from the contenteditable.
  // This is consistent across all browsers, but we prefer that the editor
  // behave like a textarea, where a `blur` event clears the DOM selection.
  // We therefore force the issue to be certain, checking whether the active
  // element is `body` to force it when blurring occurs within the window (as
  // opposed to clicking to another tab or window).
  if (getActiveElement_1() === document.body) {
    var _selection = commonjsGlobal.getSelection();
    var editorNode = editor.editor;
    if (_selection.rangeCount === 1 && containsNode_1(editorNode, _selection.anchorNode) && containsNode_1(editorNode, _selection.focusNode)) {
      _selection.removeAllRanges();
    }
  }

  var editorState = editor._latestEditorState;
  var currentSelection = editorState.getSelection();
  if (!currentSelection.getHasFocus()) {
    return;
  }

  var selection = currentSelection.set('hasFocus', false);
  editor.props.onBlur && editor.props.onBlur(e);
  editor.update(EditorState_1.acceptSelection(editorState, selection));
}

var editOnBlur_1 = editOnBlur;

/**
 * The user has begun using an IME input system. Switching to `composite` mode
 * allows handling composition input and disables other edit behavior.
 */
function editOnCompositionStart(editor, e) {
  editor.setMode('composite');
  editor.update(EditorState_1.set(editor._latestEditorState, { inCompositionMode: true }));
  // Allow composition handler to interpret the compositionstart event
  editor._onCompositionStart(e);
}

var editOnCompositionStart_1 = editOnCompositionStart;

function getFragmentFromSelection(editorState) {
  var selectionState = editorState.getSelection();

  if (selectionState.isCollapsed()) {
    return null;
  }

  return getContentStateFragment_1(editorState.getCurrentContent(), selectionState);
}

var getFragmentFromSelection_1 = getFragmentFromSelection;

/**
 * If we have a selection, create a ContentState fragment and store
 * it in our internal clipboard. Subsequent paste events will use this
 * fragment if no external clipboard data is supplied.
 */
function editOnCopy(editor, e) {
  var editorState = editor._latestEditorState;
  var selection = editorState.getSelection();

  // No selection, so there's nothing to copy.
  if (selection.isCollapsed()) {
    e.preventDefault();
    return;
  }

  editor.setClipboard(getFragmentFromSelection_1(editor._latestEditorState));
}

var editOnCopy_1 = editOnCopy;

/**
 * On `cut` events, native behavior is allowed to occur so that the system
 * clipboard is set properly. This means that we need to take steps to recover
 * the editor DOM state after the `cut` has occurred in order to maintain
 * control of the component.
 *
 * In addition, we can keep a copy of the removed fragment, including all
 * styles and entities, for use as an internal paste.
 */
function editOnCut(editor, e) {
  var editorState = editor._latestEditorState;
  var selection = editorState.getSelection();
  var element = e.target;
  var scrollPosition = void 0;

  // No selection, so there's nothing to cut.
  if (selection.isCollapsed()) {
    e.preventDefault();
    return;
  }

  // Track the current scroll position so that it can be forced back in place
  // after the editor regains control of the DOM.
  if (element instanceof Node) {
    scrollPosition = getScrollPosition_1(Style_1.getScrollParent(element));
  }

  var fragment = getFragmentFromSelection_1(editorState);
  editor.setClipboard(fragment);

  // Set `cut` mode to disable all event handling temporarily.
  editor.setMode('cut');

  // Let native `cut` behavior occur, then recover control.
  setTimeout(function () {
    editor.restoreEditorDOM(scrollPosition);
    editor.exitCurrentMode();
    editor.update(removeFragment(editorState));
  }, 0);
}

function removeFragment(editorState) {
  var newContent = DraftModifier_1.removeRange(editorState.getCurrentContent(), editorState.getSelection(), 'forward');
  return EditorState_1.push(editorState, newContent, 'remove-range');
}

var editOnCut_1 = editOnCut;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule editOnDragOver
 * @format
 * 
 */

/**
 * Drag behavior has begun from outside the editor element.
 */
function editOnDragOver(editor, e) {
  editor._internalDrag = false;
  editor.setMode('drag');
  e.preventDefault();
}

var editOnDragOver_1 = editOnDragOver;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule editOnDragStart
 * @format
 * 
 */

/**
 * A `dragstart` event has begun within the text editor component.
 */
function editOnDragStart(editor) {
  editor._internalDrag = true;
  editor.setMode('drag');
}

var editOnDragStart_1 = editOnDragStart;

function editOnFocus(editor, e) {
  var editorState = editor._latestEditorState;
  var currentSelection = editorState.getSelection();
  if (currentSelection.getHasFocus()) {
    return;
  }

  var selection = currentSelection.set('hasFocus', true);
  editor.props.onFocus && editor.props.onFocus(e);

  // When the tab containing this text editor is hidden and the user does a
  // find-in-page in a _different_ tab, Chrome on Mac likes to forget what the
  // selection was right after sending this focus event and (if you let it)
  // moves the cursor back to the beginning of the editor, so we force the
  // selection here instead of simply accepting it in order to preserve the
  // old cursor position. See https://crbug.com/540004.
  // But it looks like this is fixed in Chrome 60.0.3081.0.
  // Other browsers also don't have this bug, so we prefer to acceptSelection
  // when possible, to ensure that unfocusing and refocusing a Draft editor
  // doesn't preserve the selection, matching how textareas work.
  if (UserAgent_1.isBrowser('Chrome < 60.0.3081.0')) {
    editor.update(EditorState_1.forceSelection(editorState, selection));
  } else {
    editor.update(EditorState_1.acceptSelection(editorState, selection));
  }
}

var editOnFocus_1 = editOnFocus;

var isGecko = UserAgent_1.isEngine('Gecko');

var DOUBLE_NEWLINE = '\n\n';

/**
 * This function is intended to handle spellcheck and autocorrect changes,
 * which occur in the DOM natively without any opportunity to observe or
 * interpret the changes before they occur.
 *
 * The `input` event fires in contentEditable elements reliably for non-IE
 * browsers, immediately after changes occur to the editor DOM. Since our other
 * handlers override or otherwise handle cover other varieties of text input,
 * the DOM state should match the model in all controlled input cases. Thus,
 * when an `input` change leads to a DOM/model mismatch, the change should be
 * due to a spellcheck change, and we can incorporate it into our model.
 */
function editOnInput(editor) {
  if (editor._pendingStateFromBeforeInput !== undefined) {
    editor.update(editor._pendingStateFromBeforeInput);
    editor._pendingStateFromBeforeInput = undefined;
  }

  var domSelection = commonjsGlobal.getSelection();

  var anchorNode = domSelection.anchorNode,
      isCollapsed = domSelection.isCollapsed;

  var isNotTextNode = anchorNode.nodeType !== Node.TEXT_NODE;
  var isNotTextOrElementNode = anchorNode.nodeType !== Node.TEXT_NODE && anchorNode.nodeType !== Node.ELEMENT_NODE;

  {
    if (isNotTextOrElementNode) {
      // TODO: (t16149272) figure out context for this change
      return;
    }
  }

  if (anchorNode.nodeType === Node.TEXT_NODE && (anchorNode.previousSibling !== null || anchorNode.nextSibling !== null)) {
    // When typing at the beginning of a visual line, Chrome splits the text
    // nodes into two. Why? No one knows. This commit is suspicious:
    // https://chromium.googlesource.com/chromium/src/+/a3b600981286b135632371477f902214c55a1724
    // To work around, we'll merge the sibling text nodes back into this one.
    var span = anchorNode.parentNode;
    anchorNode.nodeValue = span.textContent;
    for (var child = span.firstChild; child !== null; child = child.nextSibling) {
      if (child !== anchorNode) {
        span.removeChild(child);
      }
    }
  }

  var domText = anchorNode.textContent;
  var editorState = editor._latestEditorState;
  var offsetKey = nullthrows_1(findAncestorOffsetKey_1(anchorNode));

  var _DraftOffsetKey$decod = DraftOffsetKey_1.decode(offsetKey),
      blockKey = _DraftOffsetKey$decod.blockKey,
      decoratorKey = _DraftOffsetKey$decod.decoratorKey,
      leafKey = _DraftOffsetKey$decod.leafKey;

  var _editorState$getBlock = editorState.getBlockTree(blockKey).getIn([decoratorKey, 'leaves', leafKey]),
      start = _editorState$getBlock.start,
      end = _editorState$getBlock.end;

  var content = editorState.getCurrentContent();
  var block = content.getBlockForKey(blockKey);
  var modelText = block.getText().slice(start, end);

  // Special-case soft newlines here. If the DOM text ends in a soft newline,
  // we will have manually inserted an extra soft newline in DraftEditorLeaf.
  // We want to remove this extra newline for the purpose of our comparison
  // of DOM and model text.
  if (domText.endsWith(DOUBLE_NEWLINE)) {
    domText = domText.slice(0, -1);
  }

  // No change -- the DOM is up to date. Nothing to do here.
  if (domText === modelText) {
    // This can be buggy for some Android keyboards because they don't fire
    // standard onkeydown/pressed events and only fired editOnInput
    // so domText is already changed by the browser and ends up being equal
    // to modelText unexpectedly
    return;
  }

  var selection = editorState.getSelection();

  // We'll replace the entire leaf with the text content of the target.
  var targetRange = selection.merge({
    anchorOffset: start,
    focusOffset: end,
    isBackward: false
  });

  var entityKey = block.getEntityAt(start);
  var entity = entityKey && content.getEntity(entityKey);
  var entityType = entity && entity.getMutability();
  var preserveEntity = entityType === 'MUTABLE';

  // Immutable or segmented entities cannot properly be handled by the
  // default browser undo, so we have to use a different change type to
  // force using our internal undo method instead of falling through to the
  // native browser undo.
  var changeType = preserveEntity ? 'spellcheck-change' : 'apply-entity';

  var newContent = DraftModifier_1.replaceText(content, targetRange, domText, block.getInlineStyleAt(start), preserveEntity ? block.getEntityAt(start) : null);

  var anchorOffset, focusOffset, startOffset, endOffset;

  if (isGecko) {
    // Firefox selection does not change while the context menu is open, so
    // we preserve the anchor and focus values of the DOM selection.
    anchorOffset = domSelection.anchorOffset;
    focusOffset = domSelection.focusOffset;
    startOffset = start + Math.min(anchorOffset, focusOffset);
    endOffset = startOffset + Math.abs(anchorOffset - focusOffset);
    anchorOffset = startOffset;
    focusOffset = endOffset;
  } else {
    // Browsers other than Firefox may adjust DOM selection while the context
    // menu is open, and Safari autocorrect is prone to providing an inaccurate
    // DOM selection. Don't trust it. Instead, use our existing SelectionState
    // and adjust it based on the number of characters changed during the
    // mutation.
    var charDelta = domText.length - modelText.length;
    startOffset = selection.getStartOffset();
    endOffset = selection.getEndOffset();

    anchorOffset = isCollapsed ? endOffset + charDelta : startOffset;
    focusOffset = endOffset + charDelta;
  }

  // Segmented entities are completely or partially removed when their
  // text content changes. For this case we do not want any text to be selected
  // after the change, so we are not merging the selection.
  var contentWithAdjustedDOMSelection = newContent.merge({
    selectionBefore: content.getSelectionAfter(),
    selectionAfter: selection.merge({ anchorOffset: anchorOffset, focusOffset: focusOffset })
  });

  editor.update(EditorState_1.push(editorState, contentWithAdjustedDOMSelection, changeType));
}

var editOnInput_1 = editOnInput;

var isOSX = UserAgent_1.isPlatform('Mac OS X');

var KeyBindingUtil = {
  /**
   * Check whether the ctrlKey modifier is *not* being used in conjunction with
   * the altKey modifier. If they are combined, the result is an `altGraph`
   * key modifier, which should not be handled by this set of key bindings.
   */
  isCtrlKeyCommand: function isCtrlKeyCommand(e) {
    return !!e.ctrlKey && !e.altKey;
  },

  isOptionKeyCommand: function isOptionKeyCommand(e) {
    return isOSX && e.altKey;
  },

  hasCommandModifier: function hasCommandModifier(e) {
    return isOSX ? !!e.metaKey && !e.altKey : KeyBindingUtil.isCtrlKeyCommand(e);
  }
};

var KeyBindingUtil_1 = KeyBindingUtil;

var clipboard = null;

/**
 * Some systems offer a "secondary" clipboard to allow quick internal cut
 * and paste behavior. For instance, Ctrl+K (cut) and Ctrl+Y (paste).
 */
var SecondaryClipboard = {
  cut: function cut(editorState) {
    var content = editorState.getCurrentContent();
    var selection = editorState.getSelection();
    var targetRange = null;

    if (selection.isCollapsed()) {
      var anchorKey = selection.getAnchorKey();
      var blockEnd = content.getBlockForKey(anchorKey).getLength();

      if (blockEnd === selection.getAnchorOffset()) {
        return editorState;
      }

      targetRange = selection.set('focusOffset', blockEnd);
    } else {
      targetRange = selection;
    }

    targetRange = nullthrows_1(targetRange);
    clipboard = getContentStateFragment_1(content, targetRange);

    var afterRemoval = DraftModifier_1.removeRange(content, targetRange, 'forward');

    if (afterRemoval === content) {
      return editorState;
    }

    return EditorState_1.push(editorState, afterRemoval, 'remove-range');
  },

  paste: function paste(editorState) {
    if (!clipboard) {
      return editorState;
    }

    var newContent = DraftModifier_1.replaceWithFragment(editorState.getCurrentContent(), editorState.getSelection(), clipboard);

    return EditorState_1.push(editorState, newContent, 'insert-fragment');
  }
};

var SecondaryClipboard_1 = SecondaryClipboard;

// These two ranges are consecutive so anything in [HIGH_START, LOW_END] is a
// surrogate code unit.
var SURROGATE_HIGH_START = 0xD800;
var SURROGATE_HIGH_END = 0xDBFF;
var SURROGATE_LOW_START = 0xDC00;
var SURROGATE_LOW_END = 0xDFFF;
var SURROGATE_UNITS_REGEX = /[\uD800-\uDFFF]/;

/**
 * @param {number} codeUnit   A Unicode code-unit, in range [0, 0x10FFFF]
 * @return {boolean}          Whether code-unit is in a surrogate (hi/low) range
 */
function isCodeUnitInSurrogateRange(codeUnit) {
  return SURROGATE_HIGH_START <= codeUnit && codeUnit <= SURROGATE_LOW_END;
}

/**
 * Returns whether the two characters starting at `index` form a surrogate pair.
 * For example, given the string s = "\uD83D\uDE0A", (s, 0) returns true and
 * (s, 1) returns false.
 *
 * @param {string} str
 * @param {number} index
 * @return {boolean}
 */
function isSurrogatePair(str, index) {
  !(0 <= index && index < str.length) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'isSurrogatePair: Invalid index %s for string length %s.', index, str.length) : invariant_1(false) : void 0;
  if (index + 1 === str.length) {
    return false;
  }
  var first = str.charCodeAt(index);
  var second = str.charCodeAt(index + 1);
  return SURROGATE_HIGH_START <= first && first <= SURROGATE_HIGH_END && SURROGATE_LOW_START <= second && second <= SURROGATE_LOW_END;
}

/**
 * @param {string} str  Non-empty string
 * @return {boolean}    True if the input includes any surrogate code units
 */
function hasSurrogateUnit(str) {
  return SURROGATE_UNITS_REGEX.test(str);
}

/**
 * Return the length of the original Unicode character at given position in the
 * String by looking into the UTF-16 code unit; that is equal to 1 for any
 * non-surrogate characters in BMP ([U+0000..U+D7FF] and [U+E000, U+FFFF]); and
 * returns 2 for the hi/low surrogates ([U+D800..U+DFFF]), which are in fact
 * representing non-BMP characters ([U+10000..U+10FFFF]).
 *
 * Examples:
 * - '\u0020' => 1
 * - '\u3020' => 1
 * - '\uD835' => 2
 * - '\uD835\uDDEF' => 2
 * - '\uDDEF' => 2
 *
 * @param {string} str  Non-empty string
 * @param {number} pos  Position in the string to look for one code unit
 * @return {number}      Number 1 or 2
 */
function getUTF16Length(str, pos) {
  return 1 + isCodeUnitInSurrogateRange(str.charCodeAt(pos));
}

/**
 * Fully Unicode-enabled replacement for String#length
 *
 * @param {string} str  Valid Unicode string
 * @return {number}     The number of Unicode characters in the string
 */
function strlen(str) {
  // Call the native functions if there's no surrogate char
  if (!hasSurrogateUnit(str)) {
    return str.length;
  }

  var len = 0;
  for (var pos = 0; pos < str.length; pos += getUTF16Length(str, pos)) {
    len++;
  }
  return len;
}

/**
 * Fully Unicode-enabled replacement for String#substr()
 *
 * @param {string} str      Valid Unicode string
 * @param {number} start    Location in Unicode sequence to begin extracting
 * @param {?number} length  The number of Unicode characters to extract
 *                          (default: to the end of the string)
 * @return {string}         Extracted sub-string
 */
function substr(str, start, length) {
  start = start || 0;
  length = length === undefined ? Infinity : length || 0;

  // Call the native functions if there's no surrogate char
  if (!hasSurrogateUnit(str)) {
    return str.substr(start, length);
  }

  // Obvious cases
  var size = str.length;
  if (size <= 0 || start > size || length <= 0) {
    return '';
  }

  // Find the actual starting position
  var posA = 0;
  if (start > 0) {
    for (; start > 0 && posA < size; start--) {
      posA += getUTF16Length(str, posA);
    }
    if (posA >= size) {
      return '';
    }
  } else if (start < 0) {
    for (posA = size; start < 0 && 0 < posA; start++) {
      posA -= getUTF16Length(str, posA - 1);
    }
    if (posA < 0) {
      posA = 0;
    }
  }

  // Find the actual ending position
  var posB = size;
  if (length < size) {
    for (posB = posA; length > 0 && posB < size; length--) {
      posB += getUTF16Length(str, posB);
    }
  }

  return str.substring(posA, posB);
}

/**
 * Fully Unicode-enabled replacement for String#substring()
 *
 * @param {string} str    Valid Unicode string
 * @param {number} start  Location in Unicode sequence to begin extracting
 * @param {?number} end   Location in Unicode sequence to end extracting
 *                        (default: end of the string)
 * @return {string}       Extracted sub-string
 */
function substring(str, start, end) {
  start = start || 0;
  end = end === undefined ? Infinity : end || 0;

  if (start < 0) {
    start = 0;
  }
  if (end < 0) {
    end = 0;
  }

  var length = Math.abs(end - start);
  start = start < end ? start : end;
  return substr(str, start, length);
}

/**
 * Get a list of Unicode code-points from a String
 *
 * @param {string} str        Valid Unicode string
 * @return {array<number>}    A list of code-points in [0..0x10FFFF]
 */
function getCodePoints(str) {
  var codePoints = [];
  for (var pos = 0; pos < str.length; pos += getUTF16Length(str, pos)) {
    codePoints.push(str.codePointAt(pos));
  }
  return codePoints;
}

var UnicodeUtils = {
  getCodePoints: getCodePoints,
  getUTF16Length: getUTF16Length,
  hasSurrogateUnit: hasSurrogateUnit,
  isCodeUnitInSurrogateRange: isCodeUnitInSurrogateRange,
  isSurrogatePair: isSurrogatePair,
  strlen: strlen,
  substring: substring,
  substr: substr
};

var UnicodeUtils_1 = UnicodeUtils;

var isChrome = UserAgent_1.isBrowser('Chrome');

// In Chrome, the client rects will include the entire bounds of all nodes that
// begin (have a start tag) within the selection, even if the selection does
// not overlap the entire node. To resolve this, we split the range at each
// start tag and join the client rects together.
// https://code.google.com/p/chromium/issues/detail?id=324437
/* eslint-disable consistent-return */
function getRangeClientRectsChrome(range) {
  var tempRange = range.cloneRange();
  var clientRects = [];

  for (var ancestor = range.endContainer; ancestor != null; ancestor = ancestor.parentNode) {
    // If we've climbed up to the common ancestor, we can now use the
    // original start point and stop climbing the tree.
    var atCommonAncestor = ancestor === range.commonAncestorContainer;
    if (atCommonAncestor) {
      tempRange.setStart(range.startContainer, range.startOffset);
    } else {
      tempRange.setStart(tempRange.endContainer, 0);
    }
    var rects = Array.from(tempRange.getClientRects());
    clientRects.push(rects);
    if (atCommonAncestor) {
      var _ref;

      clientRects.reverse();
      return (_ref = []).concat.apply(_ref, clientRects);
    }
    tempRange.setEndBefore(ancestor);
  }

   process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Found an unexpected detached subtree when getting range client rects.') : invariant_1(false) ;
}
/* eslint-enable consistent-return */

/**
 * Like range.getClientRects() but normalizes for browser bugs.
 */
var getRangeClientRects = isChrome ? getRangeClientRectsChrome : function (range) {
  return Array.from(range.getClientRects());
};

var getRangeClientRects_1 = getRangeClientRects;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule expandRangeToStartOfLine
 * @format
 * 
 */






/**
 * Return the computed line height, in pixels, for the provided element.
 */
function getLineHeightPx(element) {
  var computed = getComputedStyle(element);
  var div = document.createElement('div');
  div.style.fontFamily = computed.fontFamily;
  div.style.fontSize = computed.fontSize;
  div.style.fontStyle = computed.fontStyle;
  div.style.fontWeight = computed.fontWeight;
  div.style.lineHeight = computed.lineHeight;
  div.style.position = 'absolute';
  div.textContent = 'M';

  var documentBody = document.body;
  !documentBody ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Missing document.body') : invariant_1(false) : void 0;

  // forced layout here
  documentBody.appendChild(div);
  var rect = div.getBoundingClientRect();
  documentBody.removeChild(div);

  return rect.height;
}

/**
 * Return whether every ClientRect in the provided list lies on the same line.
 *
 * We assume that the rects on the same line all contain the baseline, so the
 * lowest top line needs to be above the highest bottom line (i.e., if you were
 * to project the rects onto the y-axis, their intersection would be nonempty).
 *
 * In addition, we require that no two boxes are lineHeight (or more) apart at
 * either top or bottom, which helps protect against false positives for fonts
 * with extremely large glyph heights (e.g., with a font size of 17px, Zapfino
 * produces rects of height 58px!).
 */
function areRectsOnOneLine(rects, lineHeight) {
  var minTop = Infinity;
  var minBottom = Infinity;
  var maxTop = -Infinity;
  var maxBottom = -Infinity;

  for (var ii = 0; ii < rects.length; ii++) {
    var rect = rects[ii];
    if (rect.width === 0 || rect.width === 1) {
      // When a range starts or ends a soft wrap, many browsers (Chrome, IE,
      // Safari) include an empty rect on the previous or next line. When the
      // text lies in a container whose position is not integral (e.g., from
      // margin: auto), Safari makes these empty rects have width 1 (instead of
      // 0). Having one-pixel-wide characters seems unlikely (and most browsers
      // report widths in subpixel precision anyway) so it's relatively safe to
      // skip over them.
      continue;
    }
    minTop = Math.min(minTop, rect.top);
    minBottom = Math.min(minBottom, rect.bottom);
    maxTop = Math.max(maxTop, rect.top);
    maxBottom = Math.max(maxBottom, rect.bottom);
  }

  return maxTop <= minBottom && maxTop - minTop < lineHeight && maxBottom - minBottom < lineHeight;
}

/**
 * Return the length of a node, as used by Range offsets.
 */
function getNodeLength$1(node) {
  // http://www.w3.org/TR/dom/#concept-node-length
  switch (node.nodeType) {
    case Node.DOCUMENT_TYPE_NODE:
      return 0;
    case Node.TEXT_NODE:
    case Node.PROCESSING_INSTRUCTION_NODE:
    case Node.COMMENT_NODE:
      return node.length;
    default:
      return node.childNodes.length;
  }
}

/**
 * Given a collapsed range, move the start position backwards as far as
 * possible while the range still spans only a single line.
 */
function expandRangeToStartOfLine(range) {
  !range.collapsed ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'expandRangeToStartOfLine: Provided range is not collapsed.') : invariant_1(false) : void 0;
  range = range.cloneRange();

  var containingElement = range.startContainer;
  if (containingElement.nodeType !== 1) {
    containingElement = containingElement.parentNode;
  }
  var lineHeight = getLineHeightPx(containingElement);

  // Imagine our text looks like:
  //   <div><span>once upon a time, there was a <em>boy
  //   who lived</em> </span><q><strong>under^ the
  //   stairs</strong> in a small closet.</q></div>
  // where the caret represents the cursor. First, we crawl up the tree until
  // the range spans multiple lines (setting the start point to before
  // "<strong>", then before "<div>"), then at each level we do a search to
  // find the latest point which is still on a previous line. We'll find that
  // the break point is inside the span, then inside the <em>, then in its text
  // node child, the actual break point before "who".

  var bestContainer = range.endContainer;
  var bestOffset = range.endOffset;
  range.setStart(range.startContainer, 0);

  while (areRectsOnOneLine(getRangeClientRects_1(range), lineHeight)) {
    bestContainer = range.startContainer;
    bestOffset = range.startOffset;
    !bestContainer.parentNode ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Found unexpected detached subtree when traversing.') : invariant_1(false) : void 0;
    range.setStartBefore(bestContainer);
    if (bestContainer.nodeType === 1 && getComputedStyle(bestContainer).display !== 'inline') {
      // The start of the line is never in a different block-level container.
      break;
    }
  }

  // In the above example, range now spans from "<div>" to "under",
  // bestContainer is <div>, and bestOffset is 1 (index of <q> inside <div>)].
  // Picking out which child to recurse into here is a special case since we
  // don't want to check past <q> -- once we find that the final range starts
  // in <span>, we can look at all of its children (and all of their children)
  // to find the break point.

  // At all times, (bestContainer, bestOffset) is the latest single-line start
  // point that we know of.
  var currentContainer = bestContainer;
  var maxIndexToConsider = bestOffset - 1;

  do {
    var nodeValue = currentContainer.nodeValue;

    for (var ii = maxIndexToConsider; ii >= 0; ii--) {
      if (nodeValue != null && ii > 0 && UnicodeUtils_1.isSurrogatePair(nodeValue, ii - 1)) {
        // We're in the middle of a surrogate pair -- skip over so we never
        // return a range with an endpoint in the middle of a code point.
        continue;
      }

      range.setStart(currentContainer, ii);
      if (areRectsOnOneLine(getRangeClientRects_1(range), lineHeight)) {
        bestContainer = currentContainer;
        bestOffset = ii;
      } else {
        break;
      }
    }

    if (ii === -1 || currentContainer.childNodes.length === 0) {
      // If ii === -1, then (bestContainer, bestOffset), which is equal to
      // (currentContainer, 0), was a single-line start point but a start
      // point before currentContainer wasn't, so the line break seems to
      // have occurred immediately after currentContainer's start tag
      //
      // If currentContainer.childNodes.length === 0, we're already at a
      // terminal node (e.g., text node) and should return our current best.
      break;
    }

    currentContainer = currentContainer.childNodes[ii];
    maxIndexToConsider = getNodeLength$1(currentContainer);
  } while (true);

  range.setStart(bestContainer, bestOffset);
  return range;
}

var expandRangeToStartOfLine_1 = expandRangeToStartOfLine;

/**
 * Convert the current selection range to an anchor/focus pair of offset keys
 * and values that can be interpreted by components.
 */
function getDraftEditorSelectionWithNodes(editorState, root, anchorNode, anchorOffset, focusNode, focusOffset) {
  var anchorIsTextNode = anchorNode.nodeType === Node.TEXT_NODE;
  var focusIsTextNode = focusNode.nodeType === Node.TEXT_NODE;

  // If the selection range lies only on text nodes, the task is simple.
  // Find the nearest offset-aware elements and use the
  // offset values supplied by the selection range.
  if (anchorIsTextNode && focusIsTextNode) {
    return {
      selectionState: getUpdatedSelectionState_1(editorState, nullthrows_1(findAncestorOffsetKey_1(anchorNode)), anchorOffset, nullthrows_1(findAncestorOffsetKey_1(focusNode)), focusOffset),
      needsRecovery: false
    };
  }

  var anchorPoint = null;
  var focusPoint = null;
  var needsRecovery = true;

  // An element is selected. Convert this selection range into leaf offset
  // keys and offset values for consumption at the component level. This
  // is common in Firefox, where select-all and triple click behavior leads
  // to entire elements being selected.
  //
  // Note that we use the `needsRecovery` parameter in the callback here. This
  // is because when certain elements are selected, the behavior for subsequent
  // cursor movement (e.g. via arrow keys) is uncertain and may not match
  // expectations at the component level. For example, if an entire <div> is
  // selected and the user presses the right arrow, Firefox keeps the selection
  // on the <div>. If we allow subsequent keypresses to insert characters
  // natively, they will be inserted into a browser-created text node to the
  // right of that <div>. This is obviously undesirable.
  //
  // With the `needsRecovery` flag, we inform the caller that it is responsible
  // for manually setting the selection state on the rendered document to
  // ensure proper selection state maintenance.

  if (anchorIsTextNode) {
    anchorPoint = {
      key: nullthrows_1(findAncestorOffsetKey_1(anchorNode)),
      offset: anchorOffset
    };
    focusPoint = getPointForNonTextNode(root, focusNode, focusOffset);
  } else if (focusIsTextNode) {
    focusPoint = {
      key: nullthrows_1(findAncestorOffsetKey_1(focusNode)),
      offset: focusOffset
    };
    anchorPoint = getPointForNonTextNode(root, anchorNode, anchorOffset);
  } else {
    anchorPoint = getPointForNonTextNode(root, anchorNode, anchorOffset);
    focusPoint = getPointForNonTextNode(root, focusNode, focusOffset);

    // If the selection is collapsed on an empty block, don't force recovery.
    // This way, on arrow key selection changes, the browser can move the
    // cursor from a non-zero offset on one block, through empty blocks,
    // to a matching non-zero offset on other text blocks.
    if (anchorNode === focusNode && anchorOffset === focusOffset) {
      needsRecovery = !!anchorNode.firstChild && anchorNode.firstChild.nodeName !== 'BR';
    }
  }

  return {
    selectionState: getUpdatedSelectionState_1(editorState, anchorPoint.key, anchorPoint.offset, focusPoint.key, focusPoint.offset),
    needsRecovery: needsRecovery
  };
}

/**
 * Identify the first leaf descendant for the given node.
 */
function getFirstLeaf(node) {
  while (node.firstChild && (
  // data-blocks has no offset
  node.firstChild instanceof Element && node.firstChild.getAttribute('data-blocks') === 'true' || getSelectionOffsetKeyForNode_1(node.firstChild))) {
    node = node.firstChild;
  }
  return node;
}

/**
 * Identify the last leaf descendant for the given node.
 */
function getLastLeaf(node) {
  while (node.lastChild && (
  // data-blocks has no offset
  node.lastChild instanceof Element && node.lastChild.getAttribute('data-blocks') === 'true' || getSelectionOffsetKeyForNode_1(node.lastChild))) {
    node = node.lastChild;
  }
  return node;
}

function getPointForNonTextNode(editorRoot, startNode, childOffset) {
  var node = startNode;
  var offsetKey = findAncestorOffsetKey_1(node);

  !(offsetKey != null || editorRoot && (editorRoot === node || editorRoot.firstChild === node)) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Unknown node in selection range.') : invariant_1(false) : void 0;

  // If the editorRoot is the selection, step downward into the content
  // wrapper.
  if (editorRoot === node) {
    node = node.firstChild;
    !(node instanceof Element && node.getAttribute('data-contents') === 'true') ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Invalid DraftEditorContents structure.') : invariant_1(false) : void 0;
    if (childOffset > 0) {
      childOffset = node.childNodes.length;
    }
  }

  // If the child offset is zero and we have an offset key, we're done.
  // If there's no offset key because the entire editor is selected,
  // find the leftmost ("first") leaf in the tree and use that as the offset
  // key.
  if (childOffset === 0) {
    var key = null;
    if (offsetKey != null) {
      key = offsetKey;
    } else {
      var firstLeaf = getFirstLeaf(node);
      key = nullthrows_1(getSelectionOffsetKeyForNode_1(firstLeaf));
    }
    return { key: key, offset: 0 };
  }

  var nodeBeforeCursor = node.childNodes[childOffset - 1];
  var leafKey = null;
  var textLength = null;

  if (!getSelectionOffsetKeyForNode_1(nodeBeforeCursor)) {
    // Our target node may be a leaf or a text node, in which case we're
    // already where we want to be and can just use the child's length as
    // our offset.
    leafKey = nullthrows_1(offsetKey);
    textLength = getTextContentLength(nodeBeforeCursor);
  } else {
    // Otherwise, we'll look at the child to the left of the cursor and find
    // the last leaf node in its subtree.
    var lastLeaf = getLastLeaf(nodeBeforeCursor);
    leafKey = nullthrows_1(getSelectionOffsetKeyForNode_1(lastLeaf));
    textLength = getTextContentLength(lastLeaf);
  }

  return {
    key: leafKey,
    offset: textLength
  };
}

/**
 * Return the length of a node's textContent, regarding single newline
 * characters as zero-length. This allows us to avoid problems with identifying
 * the correct selection offset for empty blocks in IE, in which we
 * render newlines instead of break tags.
 */
function getTextContentLength(node) {
  var textContent = node.textContent;
  return textContent === '\n' ? 0 : textContent.length;
}

var getDraftEditorSelectionWithNodes_1 = getDraftEditorSelectionWithNodes;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule moveSelectionBackward
 * @format
 * 
 */

/**
 * Given a collapsed selection, move the focus `maxDistance` backward within
 * the selected block. If the selection will go beyond the start of the block,
 * move focus to the end of the previous block, but no further.
 *
 * This function is not Unicode-aware, so surrogate pairs will be treated
 * as having length 2.
 */
function moveSelectionBackward(editorState, maxDistance) {
  var selection = editorState.getSelection();
  var content = editorState.getCurrentContent();
  var key = selection.getStartKey();
  var offset = selection.getStartOffset();

  var focusKey = key;
  var focusOffset = 0;

  if (maxDistance > offset) {
    var keyBefore = content.getKeyBefore(key);
    if (keyBefore == null) {
      focusKey = key;
    } else {
      focusKey = keyBefore;
      var blockBefore = content.getBlockForKey(keyBefore);
      focusOffset = blockBefore.getText().length;
    }
  } else {
    focusOffset = offset - maxDistance;
  }

  return selection.merge({
    focusKey: focusKey,
    focusOffset: focusOffset,
    isBackward: true
  });
}

var moveSelectionBackward_1 = moveSelectionBackward;

/**
 * For a collapsed selection state, remove text based on the specified strategy.
 * If the selection state is not collapsed, remove the entire selected range.
 */
function removeTextWithStrategy(editorState, strategy, direction) {
  var selection = editorState.getSelection();
  var content = editorState.getCurrentContent();
  var target = selection;
  if (selection.isCollapsed()) {
    if (direction === 'forward') {
      if (editorState.isSelectionAtEndOfContent()) {
        return content;
      }
    } else if (editorState.isSelectionAtStartOfContent()) {
      return content;
    }

    target = strategy(editorState);
    if (target === selection) {
      return content;
    }
  }
  return DraftModifier_1.removeRange(content, target, direction);
}

var removeTextWithStrategy_1 = removeTextWithStrategy;

function keyCommandBackspaceToStartOfLine(editorState) {
  var afterRemoval = removeTextWithStrategy_1(editorState, function (strategyState) {
    var selection = strategyState.getSelection();
    if (selection.isCollapsed() && selection.getAnchorOffset() === 0) {
      return moveSelectionBackward_1(strategyState, 1);
    }

    var domSelection = commonjsGlobal.getSelection();
    var range = domSelection.getRangeAt(0);
    range = expandRangeToStartOfLine_1(range);

    return getDraftEditorSelectionWithNodes_1(strategyState, null, range.endContainer, range.endOffset, range.startContainer, range.startOffset).selectionState;
  }, 'backward');

  if (afterRemoval === editorState.getCurrentContent()) {
    return editorState;
  }

  return EditorState_1.push(editorState, afterRemoval, 'remove-range');
}

var keyCommandBackspaceToStartOfLine_1 = keyCommandBackspaceToStartOfLine;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @typechecks
 * @stub
 * 
 */

// \u00a1-\u00b1\u00b4-\u00b8\u00ba\u00bb\u00bf
//             is latin supplement punctuation except fractions and superscript
//             numbers
// \u2010-\u2027\u2030-\u205e
//             is punctuation from the general punctuation block:
//             weird quotes, commas, bullets, dashes, etc.
// \u30fb\u3001\u3002\u3008-\u3011\u3014-\u301f
//             is CJK punctuation
// \uff1a-\uff1f\uff01-\uff0f\uff3b-\uff40\uff5b-\uff65
//             is some full-width/half-width punctuation
// \u2E2E\u061f\u066a-\u066c\u061b\u060c\u060d\uFD3e\uFD3F
//             is some Arabic punctuation marks
// \u1801\u0964\u104a\u104b
//             is misc. other language punctuation marks

var PUNCTUATION = '[.,+*?$|#{}()\'\\^\\-\\[\\]\\\\\\/!@%"~=<>_:;' + '\u30FB\u3001\u3002\u3008-\u3011\u3014-\u301F\uFF1A-\uFF1F\uFF01-\uFF0F' + '\uFF3B-\uFF40\uFF5B-\uFF65\u2E2E\u061F\u066A-\u066C\u061B\u060C\u060D' + '\uFD3E\uFD3F\u1801\u0964\u104A\u104B\u2010-\u2027\u2030-\u205E' + '\xA1-\xB1\xB4-\xB8\xBA\xBB\xBF]';

var TokenizeUtil = {
  getPunctuation: function getPunctuation() {
    return PUNCTUATION;
  }
};

var punctuation = TokenizeUtil.getPunctuation();

// The apostrophe and curly single quotes behave in a curious way: when
// surrounded on both sides by word characters, they behave as word chars; when
// either neighbor is punctuation or an end of the string, they behave as
// punctuation.
var CHAMELEON_CHARS = '[\'\u2018\u2019]';

// Remove the underscore, which should count as part of the removable word. The
// "chameleon chars" also count as punctuation in this regex.
var WHITESPACE_AND_PUNCTUATION = '\\s|(?![_])' + punctuation;

var DELETE_STRING = '^' + '(?:' + WHITESPACE_AND_PUNCTUATION + ')*' + '(?:' + CHAMELEON_CHARS + '|(?!' + WHITESPACE_AND_PUNCTUATION + ').)*' + '(?:(?!' + WHITESPACE_AND_PUNCTUATION + ').)';
var DELETE_REGEX = new RegExp(DELETE_STRING);

var BACKSPACE_STRING = '(?:(?!' + WHITESPACE_AND_PUNCTUATION + ').)' + '(?:' + CHAMELEON_CHARS + '|(?!' + WHITESPACE_AND_PUNCTUATION + ').)*' + '(?:' + WHITESPACE_AND_PUNCTUATION + ')*' + '$';
var BACKSPACE_REGEX = new RegExp(BACKSPACE_STRING);

function getRemovableWord(text, isBackward) {
  var matches = isBackward ? BACKSPACE_REGEX.exec(text) : DELETE_REGEX.exec(text);
  return matches ? matches[0] : text;
}

var DraftRemovableWord = {
  getBackward: function getBackward(text) {
    return getRemovableWord(text, true);
  },

  getForward: function getForward(text) {
    return getRemovableWord(text, false);
  }
};

var DraftRemovableWord_1 = DraftRemovableWord;

/**
 * Delete the word that is left of the cursor, as well as any spaces or
 * punctuation after the word.
 */
function keyCommandBackspaceWord(editorState) {
  var afterRemoval = removeTextWithStrategy_1(editorState, function (strategyState) {
    var selection = strategyState.getSelection();
    var offset = selection.getStartOffset();
    // If there are no words before the cursor, remove the preceding newline.
    if (offset === 0) {
      return moveSelectionBackward_1(strategyState, 1);
    }
    var key = selection.getStartKey();
    var content = strategyState.getCurrentContent();
    var text = content.getBlockForKey(key).getText().slice(0, offset);
    var toRemove = DraftRemovableWord_1.getBackward(text);
    return moveSelectionBackward_1(strategyState, toRemove.length || 1);
  }, 'backward');

  if (afterRemoval === editorState.getCurrentContent()) {
    return editorState;
  }

  return EditorState_1.push(editorState, afterRemoval, 'remove-range');
}

var keyCommandBackspaceWord_1 = keyCommandBackspaceWord;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule moveSelectionForward
 * @format
 * 
 */

/**
 * Given a collapsed selection, move the focus `maxDistance` forward within
 * the selected block. If the selection will go beyond the end of the block,
 * move focus to the start of the next block, but no further.
 *
 * This function is not Unicode-aware, so surrogate pairs will be treated
 * as having length 2.
 */
function moveSelectionForward(editorState, maxDistance) {
  var selection = editorState.getSelection();
  var key = selection.getStartKey();
  var offset = selection.getStartOffset();
  var content = editorState.getCurrentContent();

  var focusKey = key;
  var focusOffset;

  var block = content.getBlockForKey(key);

  if (maxDistance > block.getText().length - offset) {
    focusKey = content.getKeyAfter(key);
    focusOffset = 0;
  } else {
    focusOffset = offset + maxDistance;
  }

  return selection.merge({ focusKey: focusKey, focusOffset: focusOffset });
}

var moveSelectionForward_1 = moveSelectionForward;

/**
 * Delete the word that is right of the cursor, as well as any spaces or
 * punctuation before the word.
 */
function keyCommandDeleteWord(editorState) {
  var afterRemoval = removeTextWithStrategy_1(editorState, function (strategyState) {
    var selection = strategyState.getSelection();
    var offset = selection.getStartOffset();
    var key = selection.getStartKey();
    var content = strategyState.getCurrentContent();
    var text = content.getBlockForKey(key).getText().slice(offset);
    var toRemove = DraftRemovableWord_1.getForward(text);

    // If there are no words in front of the cursor, remove the newline.
    return moveSelectionForward_1(strategyState, toRemove.length || 1);
  }, 'forward');

  if (afterRemoval === editorState.getCurrentContent()) {
    return editorState;
  }

  return EditorState_1.push(editorState, afterRemoval, 'remove-range');
}

var keyCommandDeleteWord_1 = keyCommandDeleteWord;

function keyCommandInsertNewline(editorState) {
  var contentState = DraftModifier_1.splitBlock(editorState.getCurrentContent(), editorState.getSelection());
  return EditorState_1.push(editorState, contentState, 'split-block');
}

var keyCommandInsertNewline_1 = keyCommandInsertNewline;

/**
 * See comment for `moveSelectionToStartOfBlock`.
 */
function keyCommandMoveSelectionToEndOfBlock(editorState) {
  var selection = editorState.getSelection();
  var endKey = selection.getEndKey();
  var content = editorState.getCurrentContent();
  var textLength = content.getBlockForKey(endKey).getLength();
  return EditorState_1.set(editorState, {
    selection: selection.merge({
      anchorKey: endKey,
      anchorOffset: textLength,
      focusKey: endKey,
      focusOffset: textLength,
      isBackward: false
    }),
    forceSelection: true
  });
}

var keyCommandMoveSelectionToEndOfBlock_1 = keyCommandMoveSelectionToEndOfBlock;

/**
 * Collapse selection at the start of the first selected block. This is used
 * for Firefox versions that attempt to navigate forward/backward instead of
 * moving the cursor. Other browsers are able to move the cursor natively.
 */
function keyCommandMoveSelectionToStartOfBlock(editorState) {
  var selection = editorState.getSelection();
  var startKey = selection.getStartKey();
  return EditorState_1.set(editorState, {
    selection: selection.merge({
      anchorKey: startKey,
      anchorOffset: 0,
      focusKey: startKey,
      focusOffset: 0,
      isBackward: false
    }),
    forceSelection: true
  });
}

var keyCommandMoveSelectionToStartOfBlock_1 = keyCommandMoveSelectionToStartOfBlock;

/**
 * Remove the selected range. If the cursor is collapsed, remove the preceding
 * character. This operation is Unicode-aware, so removing a single character
 * will remove a surrogate pair properly as well.
 */
function keyCommandPlainBackspace(editorState) {
  var afterRemoval = removeTextWithStrategy_1(editorState, function (strategyState) {
    var selection = strategyState.getSelection();
    var content = strategyState.getCurrentContent();
    var key = selection.getAnchorKey();
    var offset = selection.getAnchorOffset();
    var charBehind = content.getBlockForKey(key).getText()[offset - 1];
    return moveSelectionBackward_1(strategyState, charBehind ? UnicodeUtils_1.getUTF16Length(charBehind, 0) : 1);
  }, 'backward');

  if (afterRemoval === editorState.getCurrentContent()) {
    return editorState;
  }

  var selection = editorState.getSelection();
  return EditorState_1.push(editorState, afterRemoval.set('selectionBefore', selection), selection.isCollapsed() ? 'backspace-character' : 'remove-range');
}

var keyCommandPlainBackspace_1 = keyCommandPlainBackspace;

/**
 * Remove the selected range. If the cursor is collapsed, remove the following
 * character. This operation is Unicode-aware, so removing a single character
 * will remove a surrogate pair properly as well.
 */
function keyCommandPlainDelete(editorState) {
  var afterRemoval = removeTextWithStrategy_1(editorState, function (strategyState) {
    var selection = strategyState.getSelection();
    var content = strategyState.getCurrentContent();
    var key = selection.getAnchorKey();
    var offset = selection.getAnchorOffset();
    var charAhead = content.getBlockForKey(key).getText()[offset];
    return moveSelectionForward_1(strategyState, charAhead ? UnicodeUtils_1.getUTF16Length(charAhead, 0) : 1);
  }, 'forward');

  if (afterRemoval === editorState.getCurrentContent()) {
    return editorState;
  }

  var selection = editorState.getSelection();

  return EditorState_1.push(editorState, afterRemoval.set('selectionBefore', selection), selection.isCollapsed() ? 'delete-character' : 'remove-range');
}

var keyCommandPlainDelete_1 = keyCommandPlainDelete;

/**
 * Transpose the characters on either side of a collapsed cursor, or
 * if the cursor is at the end of the block, transpose the last two
 * characters.
 */
function keyCommandTransposeCharacters(editorState) {
  var selection = editorState.getSelection();
  if (!selection.isCollapsed()) {
    return editorState;
  }

  var offset = selection.getAnchorOffset();
  if (offset === 0) {
    return editorState;
  }

  var blockKey = selection.getAnchorKey();
  var content = editorState.getCurrentContent();
  var block = content.getBlockForKey(blockKey);
  var length = block.getLength();

  // Nothing to transpose if there aren't two characters.
  if (length <= 1) {
    return editorState;
  }

  var removalRange;
  var finalSelection;

  if (offset === length) {
    // The cursor is at the end of the block. Swap the last two characters.
    removalRange = selection.set('anchorOffset', offset - 1);
    finalSelection = selection;
  } else {
    removalRange = selection.set('focusOffset', offset + 1);
    finalSelection = removalRange.set('anchorOffset', offset + 1);
  }

  // Extract the character to move as a fragment. This preserves its
  // styling and entity, if any.
  var movedFragment = getContentStateFragment_1(content, removalRange);
  var afterRemoval = DraftModifier_1.removeRange(content, removalRange, 'backward');

  // After the removal, the insertion target is one character back.
  var selectionAfter = afterRemoval.getSelectionAfter();
  var targetOffset = selectionAfter.getAnchorOffset() - 1;
  var targetRange = selectionAfter.merge({
    anchorOffset: targetOffset,
    focusOffset: targetOffset
  });

  var afterInsert = DraftModifier_1.replaceWithFragment(afterRemoval, targetRange, movedFragment);

  var newEditorState = EditorState_1.push(editorState, afterInsert, 'insert-fragment');

  return EditorState_1.acceptSelection(newEditorState, finalSelection);
}

var keyCommandTransposeCharacters_1 = keyCommandTransposeCharacters;

function keyCommandUndo(e, editorState, updateFn) {
  var undoneState = EditorState_1.undo(editorState);

  // If the last change to occur was a spellcheck change, allow the undo
  // event to fall through to the browser. This allows the browser to record
  // the unwanted change, which should soon lead it to learn not to suggest
  // the correction again.
  if (editorState.getLastChangeType() === 'spellcheck-change') {
    var nativelyRenderedContent = undoneState.getCurrentContent();
    updateFn(EditorState_1.set(undoneState, { nativelyRenderedContent: nativelyRenderedContent }));
    return;
  }

  // Otheriwse, manage the undo behavior manually.
  e.preventDefault();
  if (!editorState.getNativelyRenderedContent()) {
    updateFn(undoneState);
    return;
  }

  // Trigger a re-render with the current content state to ensure that the
  // component tree has up-to-date props for comparison.
  updateFn(EditorState_1.set(editorState, { nativelyRenderedContent: null }));

  // Wait to ensure that the re-render has occurred before performing
  // the undo action.
  setTimeout(function () {
    updateFn(undoneState);
  }, 0);
}

var keyCommandUndo_1 = keyCommandUndo;

var isOptionKeyCommand = KeyBindingUtil_1.isOptionKeyCommand;

var isChrome$1 = UserAgent_1.isBrowser('Chrome');

/**
 * Map a `DraftEditorCommand` command value to a corresponding function.
 */
function onKeyCommand(command, editorState) {
  switch (command) {
    case 'redo':
      return EditorState_1.redo(editorState);
    case 'delete':
      return keyCommandPlainDelete_1(editorState);
    case 'delete-word':
      return keyCommandDeleteWord_1(editorState);
    case 'backspace':
      return keyCommandPlainBackspace_1(editorState);
    case 'backspace-word':
      return keyCommandBackspaceWord_1(editorState);
    case 'backspace-to-start-of-line':
      return keyCommandBackspaceToStartOfLine_1(editorState);
    case 'split-block':
      return keyCommandInsertNewline_1(editorState);
    case 'transpose-characters':
      return keyCommandTransposeCharacters_1(editorState);
    case 'move-selection-to-start-of-block':
      return keyCommandMoveSelectionToStartOfBlock_1(editorState);
    case 'move-selection-to-end-of-block':
      return keyCommandMoveSelectionToEndOfBlock_1(editorState);
    case 'secondary-cut':
      return SecondaryClipboard_1.cut(editorState);
    case 'secondary-paste':
      return SecondaryClipboard_1.paste(editorState);
    default:
      return editorState;
  }
}

/**
 * Intercept keydown behavior to handle keys and commands manually, if desired.
 *
 * Keydown combinations may be mapped to `DraftCommand` values, which may
 * correspond to command functions that modify the editor or its contents.
 *
 * See `getDefaultKeyBinding` for defaults. Alternatively, the top-level
 * component may provide a custom mapping via the `keyBindingFn` prop.
 */
function editOnKeyDown(editor, e) {
  var keyCode = e.which;
  var editorState = editor._latestEditorState;

  switch (keyCode) {
    case Keys.RETURN:
      e.preventDefault();
      // The top-level component may manually handle newline insertion. If
      // no special handling is performed, fall through to command handling.
      if (editor.props.handleReturn && isEventHandled_1(editor.props.handleReturn(e, editorState))) {
        return;
      }
      break;
    case Keys.ESC:
      e.preventDefault();
      editor.props.onEscape && editor.props.onEscape(e);
      return;
    case Keys.TAB:
      editor.props.onTab && editor.props.onTab(e);
      return;
    case Keys.UP:
      editor.props.onUpArrow && editor.props.onUpArrow(e);
      return;
    case Keys.RIGHT:
      editor.props.onRightArrow && editor.props.onRightArrow(e);
      return;
    case Keys.DOWN:
      editor.props.onDownArrow && editor.props.onDownArrow(e);
      return;
    case Keys.LEFT:
      editor.props.onLeftArrow && editor.props.onLeftArrow(e);
      return;
    case Keys.SPACE:
      // Handling for OSX where option + space scrolls.
      if (isChrome$1 && isOptionKeyCommand(e)) {
        e.preventDefault();
        // Insert a nbsp into the editor.
        var contentState = DraftModifier_1.replaceText(editorState.getCurrentContent(), editorState.getSelection(), '\xA0');
        editor.update(EditorState_1.push(editorState, contentState, 'insert-characters'));
        return;
      }
  }

  var command = editor.props.keyBindingFn(e);

  // If no command is specified, allow keydown event to continue.
  if (!command) {
    return;
  }

  if (command === 'undo') {
    // Since undo requires some special updating behavior to keep the editor
    // in sync, handle it separately.
    keyCommandUndo_1(e, editorState, editor.update);
    return;
  }

  // At this point, we know that we're handling a command of some kind, so
  // we don't want to insert a character following the keydown.
  e.preventDefault();

  // Allow components higher up the tree to handle the command first.
  if (editor.props.handleKeyCommand && isEventHandled_1(editor.props.handleKeyCommand(command, editorState))) {
    return;
  }

  var newState = onKeyCommand(command, editorState);
  if (newState !== editorState) {
    editor.update(newState);
  }
}

var editOnKeyDown_1 = editOnKeyDown;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * 
 */

function _classCallCheck$e(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var URI = function () {
  function URI(uri) {
    _classCallCheck$e(this, URI);

    this._uri = uri;
  }

  URI.prototype.toString = function toString() {
    return this._uri;
  };

  return URI;
}();

var URI_1 = URI;

var isOldIE = UserAgent_1.isBrowser('IE <= 9');

// Provides a dom node that will not execute scripts
// https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation.createHTMLDocument
// https://developer.mozilla.org/en-US/Add-ons/Code_snippets/HTML_to_DOM

function getSafeBodyFromHTML(html) {
  var doc;
  var root = null;
  // Provides a safe context
  if (!isOldIE && document.implementation && document.implementation.createHTMLDocument) {
    doc = document.implementation.createHTMLDocument('foo');
    !doc.documentElement ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Missing doc.documentElement') : invariant_1(false) : void 0;
    doc.documentElement.innerHTML = html;
    root = doc.getElementsByTagName('body')[0];
  }
  return root;
}

var getSafeBodyFromHTML_1 = getSafeBodyFromHTML;

var _extends$4 = objectAssign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _knownListItemDepthCl;

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }









var _require = immutable,
    Set$1 = _require.Set;









var experimentalTreeDataSupport = DraftFeatureFlags_1.draft_tree_data_support;

var List$a = immutable.List,
    OrderedSet$5 = immutable.OrderedSet;


var NBSP = '&nbsp;';
var SPACE = ' ';

// Arbitrary max indent
var MAX_DEPTH = 4;

// used for replacing characters in HTML
var REGEX_CR = new RegExp('\r', 'g');
var REGEX_LF = new RegExp('\n', 'g');
var REGEX_NBSP = new RegExp(NBSP, 'g');
var REGEX_CARRIAGE = new RegExp('&#13;?', 'g');
var REGEX_ZWS = new RegExp('&#8203;?', 'g');

// https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight
var boldValues = ['bold', 'bolder', '500', '600', '700', '800', '900'];
var notBoldValues = ['light', 'lighter', '100', '200', '300', '400'];

// Block tag flow is different because LIs do not have
// a deterministic style ;_;
var inlineTags = {
  b: 'BOLD',
  code: 'CODE',
  del: 'STRIKETHROUGH',
  em: 'ITALIC',
  i: 'ITALIC',
  s: 'STRIKETHROUGH',
  strike: 'STRIKETHROUGH',
  strong: 'BOLD',
  u: 'UNDERLINE'
};

var knownListItemDepthClasses = (_knownListItemDepthCl = {}, _defineProperty(_knownListItemDepthCl, cx_1('public/DraftStyleDefault/depth0'), 0), _defineProperty(_knownListItemDepthCl, cx_1('public/DraftStyleDefault/depth1'), 1), _defineProperty(_knownListItemDepthCl, cx_1('public/DraftStyleDefault/depth2'), 2), _defineProperty(_knownListItemDepthCl, cx_1('public/DraftStyleDefault/depth3'), 3), _defineProperty(_knownListItemDepthCl, cx_1('public/DraftStyleDefault/depth4'), 4), _knownListItemDepthCl);

var anchorAttr = ['className', 'href', 'rel', 'target', 'title'];

var imgAttr = ['alt', 'className', 'height', 'src', 'width'];

var lastBlock = void 0;

var EMPTY_CHUNK = {
  text: '',
  inlines: [],
  entities: [],
  blocks: []
};

var EMPTY_BLOCK = {
  children: List$a(),
  depth: 0,
  key: '',
  type: ''
};

var getListBlockType = function getListBlockType(tag, lastList) {
  if (tag === 'li') {
    return lastList === 'ol' ? 'ordered-list-item' : 'unordered-list-item';
  }
  return null;
};

var getBlockMapSupportedTags = function getBlockMapSupportedTags(blockRenderMap) {
  var unstyledElement = blockRenderMap.get('unstyled').element;
  var tags = Set$1([]);

  blockRenderMap.forEach(function (draftBlock) {
    if (draftBlock.aliasedElements) {
      draftBlock.aliasedElements.forEach(function (tag) {
        tags = tags.add(tag);
      });
    }

    tags = tags.add(draftBlock.element);
  });

  return tags.filter(function (tag) {
    return tag && tag !== unstyledElement;
  }).toArray().sort();
};

// custom element conversions
var getMultiMatchedType = function getMultiMatchedType(tag, lastList, multiMatchExtractor) {
  for (var ii = 0; ii < multiMatchExtractor.length; ii++) {
    var matchType = multiMatchExtractor[ii](tag, lastList);
    if (matchType) {
      return matchType;
    }
  }
  return null;
};

var getBlockTypeForTag = function getBlockTypeForTag(tag, lastList, blockRenderMap) {
  var matchedTypes = blockRenderMap.filter(function (draftBlock) {
    return draftBlock.element === tag || draftBlock.wrapper === tag || draftBlock.aliasedElements && draftBlock.aliasedElements.some(function (alias) {
      return alias === tag;
    });
  }).keySeq().toSet().toArray().sort();

  // if we dont have any matched type, return unstyled
  // if we have one matched type return it
  // if we have multi matched types use the multi-match function to gather type
  switch (matchedTypes.length) {
    case 0:
      return 'unstyled';
    case 1:
      return matchedTypes[0];
    default:
      return getMultiMatchedType(tag, lastList, [getListBlockType]) || 'unstyled';
  }
};

var processInlineTag = function processInlineTag(tag, node, currentStyle) {
  var styleToCheck = inlineTags[tag];
  if (styleToCheck) {
    currentStyle = currentStyle.add(styleToCheck).toOrderedSet();
  } else if (node instanceof HTMLElement) {
    var htmlElement = node;
    currentStyle = currentStyle.withMutations(function (style) {
      var fontWeight = htmlElement.style.fontWeight;
      var fontStyle = htmlElement.style.fontStyle;
      var textDecoration = htmlElement.style.textDecoration;

      if (boldValues.indexOf(fontWeight) >= 0) {
        style.add('BOLD');
      } else if (notBoldValues.indexOf(fontWeight) >= 0) {
        style.remove('BOLD');
      }

      if (fontStyle === 'italic') {
        style.add('ITALIC');
      } else if (fontStyle === 'normal') {
        style.remove('ITALIC');
      }

      if (textDecoration === 'underline') {
        style.add('UNDERLINE');
      }
      if (textDecoration === 'line-through') {
        style.add('STRIKETHROUGH');
      }
      if (textDecoration === 'none') {
        style.remove('UNDERLINE');
        style.remove('STRIKETHROUGH');
      }
    }).toOrderedSet();
  }
  return currentStyle;
};

var joinChunks = function joinChunks(A, B, experimentalHasNestedBlocks) {
  // Sometimes two blocks will touch in the DOM and we need to strip the
  // extra delimiter to preserve niceness.
  var lastInA = A.text.slice(-1);
  var firstInB = B.text.slice(0, 1);

  if (lastInA === '\r' && firstInB === '\r' && !experimentalHasNestedBlocks) {
    A.text = A.text.slice(0, -1);
    A.inlines.pop();
    A.entities.pop();
    A.blocks.pop();
  }

  // Kill whitespace after blocks
  if (lastInA === '\r') {
    if (B.text === SPACE || B.text === '\n') {
      return A;
    } else if (firstInB === SPACE || firstInB === '\n') {
      B.text = B.text.slice(1);
      B.inlines.shift();
      B.entities.shift();
    }
  }

  return {
    text: A.text + B.text,
    inlines: A.inlines.concat(B.inlines),
    entities: A.entities.concat(B.entities),
    blocks: A.blocks.concat(B.blocks)
  };
};

/**
 * Check to see if we have anything like <p> <blockquote> <h1>... to create
 * block tags from. If we do, we can use those and ignore <div> tags. If we
 * don't, we can treat <div> tags as meaningful (unstyled) blocks.
 */
var containsSemanticBlockMarkup = function containsSemanticBlockMarkup(html, blockTags) {
  return blockTags.some(function (tag) {
    return html.indexOf('<' + tag) !== -1;
  });
};

var hasValidLinkText = function hasValidLinkText(link) {
  !(link instanceof HTMLAnchorElement) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Link must be an HTMLAnchorElement.') : invariant_1(false) : void 0;
  var protocol = link.protocol;
  return protocol === 'http:' || protocol === 'https:' || protocol === 'mailto:';
};

var getWhitespaceChunk = function getWhitespaceChunk(inEntity) {
  var entities = new Array(1);
  if (inEntity) {
    entities[0] = inEntity;
  }
  return _extends$4({}, EMPTY_CHUNK, {
    text: SPACE,
    inlines: [OrderedSet$5()],
    entities: entities
  });
};

var getSoftNewlineChunk = function getSoftNewlineChunk() {
  return _extends$4({}, EMPTY_CHUNK, {
    text: '\n',
    inlines: [OrderedSet$5()],
    entities: new Array(1)
  });
};

var getChunkedBlock = function getChunkedBlock() {
  var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

  return _extends$4({}, EMPTY_BLOCK, props);
};

var getBlockDividerChunk = function getBlockDividerChunk(block, depth) {
  var parentKey = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;

  return {
    text: '\r',
    inlines: [OrderedSet$5()],
    entities: new Array(1),
    blocks: [getChunkedBlock({
      parent: parentKey,
      key: generateRandomKey_1(),
      type: block,
      depth: Math.max(0, Math.min(MAX_DEPTH, depth))
    })]
  };
};

/**
 *  If we're pasting from one DraftEditor to another we can check to see if
 *  existing list item depth classes are being used and preserve this style
 */
var getListItemDepth = function getListItemDepth(node) {
  var depth = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;

  Object.keys(knownListItemDepthClasses).some(function (depthClass) {
    if (node.classList.contains(depthClass)) {
      depth = knownListItemDepthClasses[depthClass];
    }
  });
  return depth;
};

var genFragment = function genFragment(entityMap, node, inlineStyle, lastList, inBlock, blockTags, depth, blockRenderMap, inEntity, parentKey) {
  var lastLastBlock = lastBlock;
  var nodeName = node.nodeName.toLowerCase();
  var newEntityMap = entityMap;
  var nextBlockType = 'unstyled';
  var newBlock = false;
  var inBlockType = inBlock && getBlockTypeForTag(inBlock, lastList, blockRenderMap);
  var chunk = _extends$4({}, EMPTY_CHUNK);
  var newChunk = null;
  var blockKey = void 0;

  // Base Case
  if (nodeName === '#text') {
    var _text = node.textContent;
    var nodeTextContent = _text.trim();

    // We should not create blocks for leading spaces that are
    // existing around ol/ul and their children list items
    if (lastList && nodeTextContent === '' && node.parentElement) {
      var parentNodeName = node.parentElement.nodeName.toLowerCase();
      if (parentNodeName === 'ol' || parentNodeName === 'ul') {
        return { chunk: _extends$4({}, EMPTY_CHUNK), entityMap: entityMap };
      }
    }

    if (nodeTextContent === '' && inBlock !== 'pre') {
      return { chunk: getWhitespaceChunk(inEntity), entityMap: entityMap };
    }
    if (inBlock !== 'pre') {
      // Can't use empty string because MSWord
      _text = _text.replace(REGEX_LF, SPACE);
    }

    // save the last block so we can use it later
    lastBlock = nodeName;

    return {
      chunk: {
        text: _text,
        inlines: Array(_text.length).fill(inlineStyle),
        entities: Array(_text.length).fill(inEntity),
        blocks: []
      },
      entityMap: entityMap
    };
  }

  // save the last block so we can use it later
  lastBlock = nodeName;

  // BR tags
  if (nodeName === 'br') {
    if (lastLastBlock === 'br' && (!inBlock || inBlockType === 'unstyled')) {
      return {
        chunk: getBlockDividerChunk('unstyled', depth, parentKey),
        entityMap: entityMap
      };
    }
    return { chunk: getSoftNewlineChunk(), entityMap: entityMap };
  }

  // IMG tags
  if (nodeName === 'img' && node instanceof HTMLImageElement && node.attributes.getNamedItem('src') && node.attributes.getNamedItem('src').value) {
    var image = node;
    var entityConfig = {};

    imgAttr.forEach(function (attr) {
      var imageAttribute = image.getAttribute(attr);
      if (imageAttribute) {
        entityConfig[attr] = imageAttribute;
      }
    });
    // Forcing this node to have children because otherwise no entity will be
    // created for this node.
    // The child text node cannot just have a space or return as content -
    // we strip those out.
    // See https://github.com/facebook/draft-js/issues/231 for some context.
    node.textContent = '\uD83D\uDCF7';

    // TODO: update this when we remove DraftEntity entirely
    inEntity = DraftEntity_1.__create('IMAGE', 'MUTABLE', entityConfig || {});
  }

  // Inline tags
  inlineStyle = processInlineTag(nodeName, node, inlineStyle);

  // Handle lists
  if (nodeName === 'ul' || nodeName === 'ol') {
    if (lastList) {
      depth += 1;
    }
    lastList = nodeName;
  }

  if ( nodeName === 'li' && node instanceof HTMLElement) {
    depth = getListItemDepth(node, depth);
  }

  var blockType = getBlockTypeForTag(nodeName, lastList, blockRenderMap);
  var inListBlock = lastList && inBlock === 'li' && nodeName === 'li';
  var inBlockOrHasNestedBlocks = (!inBlock || experimentalTreeDataSupport) && blockTags.indexOf(nodeName) !== -1;

  // Block Tags
  if (inListBlock || inBlockOrHasNestedBlocks) {
    chunk = getBlockDividerChunk(blockType, depth, parentKey);
    blockKey = chunk.blocks[0].key;
    inBlock = nodeName;
    newBlock = !experimentalTreeDataSupport;
  }

  // this is required so that we can handle 'ul' and 'ol'
  if (inListBlock) {
    nextBlockType = lastList === 'ul' ? 'unordered-list-item' : 'ordered-list-item';
  }

  // Recurse through children
  var child = node.firstChild;
  if (child != null) {
    nodeName = child.nodeName.toLowerCase();
  }

  var entityId = null;

  while (child) {
    if (child instanceof HTMLAnchorElement && child.href && hasValidLinkText(child)) {
      (function () {
        var anchor = child;
        var entityConfig = {};

        anchorAttr.forEach(function (attr) {
          var anchorAttribute = anchor.getAttribute(attr);
          if (anchorAttribute) {
            entityConfig[attr] = anchorAttribute;
          }
        });

        entityConfig.url = new URI_1(anchor.href).toString();
        // TODO: update this when we remove DraftEntity completely
        entityId = DraftEntity_1.__create('LINK', 'MUTABLE', entityConfig || {});
      })();
    } else {
      entityId = undefined;
    }

    var _genFragment = genFragment(newEntityMap, child, inlineStyle, lastList, inBlock, blockTags, depth, blockRenderMap, entityId || inEntity,  null),
        generatedChunk = _genFragment.chunk,
        maybeUpdatedEntityMap = _genFragment.entityMap;

    newChunk = generatedChunk;
    newEntityMap = maybeUpdatedEntityMap;

    chunk = joinChunks(chunk, newChunk, experimentalTreeDataSupport);
    var sibling = child.nextSibling;

    // Put in a newline to break up blocks inside blocks
    if (!parentKey && sibling && blockTags.indexOf(nodeName) >= 0 && inBlock) {
      chunk = joinChunks(chunk, getSoftNewlineChunk());
    }
    if (sibling) {
      nodeName = sibling.nodeName.toLowerCase();
    }
    child = sibling;
  }

  if (newBlock) {
    chunk = joinChunks(chunk, getBlockDividerChunk(nextBlockType, depth, parentKey));
  }

  return { chunk: chunk, entityMap: newEntityMap };
};

var getChunkForHTML = function getChunkForHTML(html, DOMBuilder, blockRenderMap, entityMap) {
  html = html.trim().replace(REGEX_CR, '').replace(REGEX_NBSP, SPACE).replace(REGEX_CARRIAGE, '').replace(REGEX_ZWS, '');

  var supportedBlockTags = getBlockMapSupportedTags(blockRenderMap);

  var safeBody = DOMBuilder(html);
  if (!safeBody) {
    return null;
  }
  lastBlock = null;

  // Sometimes we aren't dealing with content that contains nice semantic
  // tags. In this case, use divs to separate everything out into paragraphs
  // and hope for the best.
  var workingBlocks = containsSemanticBlockMarkup(html, supportedBlockTags) ? supportedBlockTags : ['div'];

  // Start with -1 block depth to offset the fact that we are passing in a fake
  // UL block to start with.
  var fragment = genFragment(entityMap, safeBody, OrderedSet$5(), 'ul', null, workingBlocks, -1, blockRenderMap);

  var chunk = fragment.chunk;
  var newEntityMap = fragment.entityMap;

  // join with previous block to prevent weirdness on paste
  if (chunk.text.indexOf('\r') === 0) {
    chunk = {
      text: chunk.text.slice(1),
      inlines: chunk.inlines.slice(1),
      entities: chunk.entities.slice(1),
      blocks: chunk.blocks
    };
  }

  // Kill block delimiter at the end
  if (chunk.text.slice(-1) === '\r') {
    chunk.text = chunk.text.slice(0, -1);
    chunk.inlines = chunk.inlines.slice(0, -1);
    chunk.entities = chunk.entities.slice(0, -1);
    chunk.blocks.pop();
  }

  // If we saw no block tags, put an unstyled one in
  if (chunk.blocks.length === 0) {
    chunk.blocks.push(_extends$4({}, EMPTY_CHUNK, {
      type: 'unstyled',
      depth: 0
    }));
  }

  // Sometimes we start with text that isn't in a block, which is then
  // followed by blocks. Need to fix up the blocks to add in
  // an unstyled block for this content
  if (chunk.text.split('\r').length === chunk.blocks.length + 1) {
    chunk.blocks.unshift({ type: 'unstyled', depth: 0 });
  }

  return { chunk: chunk, entityMap: newEntityMap };
};

var convertChunkToContentBlocks = function convertChunkToContentBlocks(chunk) {
  if (!chunk || !chunk.text || !Array.isArray(chunk.blocks)) {
    return null;
  }

  var initialState = {
    cacheRef: {},
    contentBlocks: []
  };

  var start = 0;

  var rawBlocks = chunk.blocks,
      rawInlines = chunk.inlines,
      rawEntities = chunk.entities;


  var BlockNodeRecord =  ContentBlock_1;

  return chunk.text.split('\r').reduce(function (acc, textBlock, index) {
    // Make absolutely certain that our text is acceptable.
    textBlock = sanitizeDraftText_1(textBlock);

    var block = rawBlocks[index];
    var end = start + textBlock.length;
    var inlines = rawInlines.slice(start, end);
    var entities = rawEntities.slice(start, end);
    var characterList = List$a(inlines.map(function (style, index) {
      var data = { style: style, entity: null };
      if (entities[index]) {
        data.entity = entities[index];
      }
      return CharacterMetadata_1.create(data);
    }));
    start = end + 1;

    var depth = block.depth,
        type = block.type,
        parent = block.parent;


    var key = block.key || generateRandomKey_1();
    var parentTextNodeKey = null; // will be used to store container text nodes

    // childrens add themselves to their parents since we are iterating in order
    if (parent) {
      var parentIndex = acc.cacheRef[parent];
      var parentRecord = acc.contentBlocks[parentIndex];

      // if parent has text we need to split it into a separate unstyled element
      if (parentRecord.getChildKeys().isEmpty() && parentRecord.getText()) {
        var parentCharacterList = parentRecord.getCharacterList();
        var parentText = parentRecord.getText();
        parentTextNodeKey = generateRandomKey_1();

        var textNode = new ContentBlockNode_1({
          key: parentTextNodeKey,
          text: parentText,
          characterList: parentCharacterList,
          parent: parent,
          nextSibling: key
        });

        acc.contentBlocks.push(textNode);

        parentRecord = parentRecord.withMutations(function (block) {
          block.set('characterList', List$a()).set('text', '').set('children', parentRecord.children.push(textNode.getKey()));
        });
      }

      acc.contentBlocks[parentIndex] = parentRecord.set('children', parentRecord.children.push(key));
    }

    var blockNode = new BlockNodeRecord({
      key: key,
      parent: parent,
      type: type,
      depth: depth,
      text: textBlock,
      characterList: characterList,
      prevSibling: parentTextNodeKey || (index === 0 || rawBlocks[index - 1].parent !== parent ? null : rawBlocks[index - 1].key),
      nextSibling: index === rawBlocks.length - 1 || rawBlocks[index + 1].parent !== parent ? null : rawBlocks[index + 1].key
    });

    // insert node
    acc.contentBlocks.push(blockNode);

    // cache ref for building links
    acc.cacheRef[blockNode.key] = index;

    return acc;
  }, initialState).contentBlocks;
};

var convertFromHTMLtoContentBlocks = function convertFromHTMLtoContentBlocks(html) {
  var DOMBuilder = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : getSafeBodyFromHTML_1;
  var blockRenderMap = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : DefaultDraftBlockRenderMap_1;

  // Be ABSOLUTELY SURE that the dom builder you pass here won't execute
  // arbitrary code in whatever environment you're running this in. For an
  // example of how we try to do this in-browser, see getSafeBodyFromHTML.

  // TODO: replace DraftEntity with an OrderedMap here
  var chunkData = getChunkForHTML(html, DOMBuilder, blockRenderMap, DraftEntity_1);

  if (chunkData == null) {
    return null;
  }

  var chunk = chunkData.chunk,
      entityMap = chunkData.entityMap;

  var contentBlocks = convertChunkToContentBlocks(chunk);

  return {
    contentBlocks: contentBlocks,
    entityMap: entityMap
  };
};

var convertFromHTMLToContentBlocks = convertFromHTMLtoContentBlocks;

var List$b = immutable.List,
    Repeat$6 = immutable.Repeat;
var ContentBlockRecord$2 =  ContentBlock_1;

var DraftPasteProcessor = {
  processHTML: function processHTML(html, blockRenderMap) {
    return convertFromHTMLToContentBlocks(html, getSafeBodyFromHTML_1, blockRenderMap);
  },
  processText: function processText(textBlocks, character, type) {
    return textBlocks.reduce(function (acc, textLine, index) {
      textLine = sanitizeDraftText_1(textLine);
      var key = generateRandomKey_1();

      var blockNodeConfig = {
        key: key,
        type: type,
        text: textLine,
        characterList: List$b(Repeat$6(character, textLine.length))
      };

      acc.push(new ContentBlockRecord$2(blockNodeConfig));

      return acc;
    }, []);
  }
};

var DraftPasteProcessor_1 = DraftPasteProcessor;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule adjustBlockDepthForContentState
 * @format
 * 
 */

function adjustBlockDepthForContentState(contentState, selectionState, adjustment, maxDepth) {
  var startKey = selectionState.getStartKey();
  var endKey = selectionState.getEndKey();
  var blockMap = contentState.getBlockMap();
  var blocks = blockMap.toSeq().skipUntil(function (_, k) {
    return k === startKey;
  }).takeUntil(function (_, k) {
    return k === endKey;
  }).concat([[endKey, blockMap.get(endKey)]]).map(function (block) {
    var depth = block.getDepth() + adjustment;
    depth = Math.max(0, Math.min(depth, maxDepth));
    return block.set('depth', depth);
  });

  blockMap = blockMap.merge(blocks);

  return contentState.merge({
    blockMap: blockMap,
    selectionBefore: selectionState,
    selectionAfter: selectionState
  });
}

var adjustBlockDepthForContentState_1 = adjustBlockDepthForContentState;

var RichTextEditorUtil = {
  currentBlockContainsLink: function currentBlockContainsLink(editorState) {
    var selection = editorState.getSelection();
    var contentState = editorState.getCurrentContent();
    var entityMap = contentState.getEntityMap();
    return contentState.getBlockForKey(selection.getAnchorKey()).getCharacterList().slice(selection.getStartOffset(), selection.getEndOffset()).some(function (v) {
      var entity = v.getEntity();
      return !!entity && entityMap.__get(entity).getType() === 'LINK';
    });
  },

  getCurrentBlockType: function getCurrentBlockType(editorState) {
    var selection = editorState.getSelection();
    return editorState.getCurrentContent().getBlockForKey(selection.getStartKey()).getType();
  },

  getDataObjectForLinkURL: function getDataObjectForLinkURL(uri) {
    return { url: uri.toString() };
  },

  handleKeyCommand: function handleKeyCommand(editorState, command) {
    switch (command) {
      case 'bold':
        return RichTextEditorUtil.toggleInlineStyle(editorState, 'BOLD');
      case 'italic':
        return RichTextEditorUtil.toggleInlineStyle(editorState, 'ITALIC');
      case 'underline':
        return RichTextEditorUtil.toggleInlineStyle(editorState, 'UNDERLINE');
      case 'code':
        return RichTextEditorUtil.toggleCode(editorState);
      case 'backspace':
      case 'backspace-word':
      case 'backspace-to-start-of-line':
        return RichTextEditorUtil.onBackspace(editorState);
      case 'delete':
      case 'delete-word':
      case 'delete-to-end-of-block':
        return RichTextEditorUtil.onDelete(editorState);
      default:
        // they may have custom editor commands; ignore those
        return null;
    }
  },

  insertSoftNewline: function insertSoftNewline(editorState) {
    var contentState = DraftModifier_1.insertText(editorState.getCurrentContent(), editorState.getSelection(), '\n', editorState.getCurrentInlineStyle(), null);

    var newEditorState = EditorState_1.push(editorState, contentState, 'insert-characters');

    return EditorState_1.forceSelection(newEditorState, contentState.getSelectionAfter());
  },

  /**
   * For collapsed selections at the start of styled blocks, backspace should
   * just remove the existing style.
   */
  onBackspace: function onBackspace(editorState) {
    var selection = editorState.getSelection();
    if (!selection.isCollapsed() || selection.getAnchorOffset() || selection.getFocusOffset()) {
      return null;
    }

    // First, try to remove a preceding atomic block.
    var content = editorState.getCurrentContent();
    var startKey = selection.getStartKey();
    var blockBefore = content.getBlockBefore(startKey);

    if (blockBefore && blockBefore.getType() === 'atomic') {
      var blockMap = content.getBlockMap()['delete'](blockBefore.getKey());
      var withoutAtomicBlock = content.merge({
        blockMap: blockMap,
        selectionAfter: selection
      });
      if (withoutAtomicBlock !== content) {
        return EditorState_1.push(editorState, withoutAtomicBlock, 'remove-range');
      }
    }

    // If that doesn't succeed, try to remove the current block style.
    var withoutBlockStyle = RichTextEditorUtil.tryToRemoveBlockStyle(editorState);

    if (withoutBlockStyle) {
      return EditorState_1.push(editorState, withoutBlockStyle, 'change-block-type');
    }

    return null;
  },

  onDelete: function onDelete(editorState) {
    var selection = editorState.getSelection();
    if (!selection.isCollapsed()) {
      return null;
    }

    var content = editorState.getCurrentContent();
    var startKey = selection.getStartKey();
    var block = content.getBlockForKey(startKey);
    var length = block.getLength();

    // The cursor is somewhere within the text. Behave normally.
    if (selection.getStartOffset() < length) {
      return null;
    }

    var blockAfter = content.getBlockAfter(startKey);

    if (!blockAfter || blockAfter.getType() !== 'atomic') {
      return null;
    }

    var atomicBlockTarget = selection.merge({
      focusKey: blockAfter.getKey(),
      focusOffset: blockAfter.getLength()
    });

    var withoutAtomicBlock = DraftModifier_1.removeRange(content, atomicBlockTarget, 'forward');

    if (withoutAtomicBlock !== content) {
      return EditorState_1.push(editorState, withoutAtomicBlock, 'remove-range');
    }

    return null;
  },

  onTab: function onTab(event, editorState, maxDepth) {
    var selection = editorState.getSelection();
    var key = selection.getAnchorKey();
    if (key !== selection.getFocusKey()) {
      return editorState;
    }

    var content = editorState.getCurrentContent();
    var block = content.getBlockForKey(key);
    var type = block.getType();
    if (type !== 'unordered-list-item' && type !== 'ordered-list-item') {
      return editorState;
    }

    event.preventDefault();

    // Only allow indenting one level beyond the block above, and only if
    // the block above is a list item as well.
    var blockAbove = content.getBlockBefore(key);
    if (!blockAbove) {
      return editorState;
    }

    var typeAbove = blockAbove.getType();
    if (typeAbove !== 'unordered-list-item' && typeAbove !== 'ordered-list-item') {
      return editorState;
    }

    var depth = block.getDepth();
    if (!event.shiftKey && depth === maxDepth) {
      return editorState;
    }

    maxDepth = Math.min(blockAbove.getDepth() + 1, maxDepth);

    var withAdjustment = adjustBlockDepthForContentState_1(content, selection, event.shiftKey ? -1 : 1, maxDepth);

    return EditorState_1.push(editorState, withAdjustment, 'adjust-depth');
  },

  toggleBlockType: function toggleBlockType(editorState, blockType) {
    var selection = editorState.getSelection();
    var startKey = selection.getStartKey();
    var endKey = selection.getEndKey();
    var content = editorState.getCurrentContent();
    var target = selection;

    // Triple-click can lead to a selection that includes offset 0 of the
    // following block. The `SelectionState` for this case is accurate, but
    // we should avoid toggling block type for the trailing block because it
    // is a confusing interaction.
    if (startKey !== endKey && selection.getEndOffset() === 0) {
      var blockBefore = nullthrows_1(content.getBlockBefore(endKey));
      endKey = blockBefore.getKey();
      target = target.merge({
        anchorKey: startKey,
        anchorOffset: selection.getStartOffset(),
        focusKey: endKey,
        focusOffset: blockBefore.getLength(),
        isBackward: false
      });
    }

    var hasAtomicBlock = content.getBlockMap().skipWhile(function (_, k) {
      return k !== startKey;
    }).reverse().skipWhile(function (_, k) {
      return k !== endKey;
    }).some(function (v) {
      return v.getType() === 'atomic';
    });

    if (hasAtomicBlock) {
      return editorState;
    }

    var typeToSet = content.getBlockForKey(startKey).getType() === blockType ? 'unstyled' : blockType;

    return EditorState_1.push(editorState, DraftModifier_1.setBlockType(content, target, typeToSet), 'change-block-type');
  },

  toggleCode: function toggleCode(editorState) {
    var selection = editorState.getSelection();
    var anchorKey = selection.getAnchorKey();
    var focusKey = selection.getFocusKey();

    if (selection.isCollapsed() || anchorKey !== focusKey) {
      return RichTextEditorUtil.toggleBlockType(editorState, 'code-block');
    }

    return RichTextEditorUtil.toggleInlineStyle(editorState, 'CODE');
  },

  /**
   * Toggle the specified inline style for the selection. If the
   * user's selection is collapsed, apply or remove the style for the
   * internal state. If it is not collapsed, apply the change directly
   * to the document state.
   */
  toggleInlineStyle: function toggleInlineStyle(editorState, inlineStyle) {
    var selection = editorState.getSelection();
    var currentStyle = editorState.getCurrentInlineStyle();

    // If the selection is collapsed, toggle the specified style on or off and
    // set the result as the new inline style override. This will then be
    // used as the inline style for the next character to be inserted.
    if (selection.isCollapsed()) {
      return EditorState_1.setInlineStyleOverride(editorState, currentStyle.has(inlineStyle) ? currentStyle.remove(inlineStyle) : currentStyle.add(inlineStyle));
    }

    // If characters are selected, immediately apply or remove the
    // inline style on the document state itself.
    var content = editorState.getCurrentContent();
    var newContent;

    // If the style is already present for the selection range, remove it.
    // Otherwise, apply it.
    if (currentStyle.has(inlineStyle)) {
      newContent = DraftModifier_1.removeInlineStyle(content, selection, inlineStyle);
    } else {
      newContent = DraftModifier_1.applyInlineStyle(content, selection, inlineStyle);
    }

    return EditorState_1.push(editorState, newContent, 'change-inline-style');
  },

  toggleLink: function toggleLink(editorState, targetSelection, entityKey) {
    var withoutLink = DraftModifier_1.applyEntity(editorState.getCurrentContent(), targetSelection, entityKey);

    return EditorState_1.push(editorState, withoutLink, 'apply-entity');
  },

  /**
   * When a collapsed cursor is at the start of the first styled block, or
   * an empty styled block, changes block to 'unstyled'. Returns null if
   * block or selection does not meet that criteria.
   */
  tryToRemoveBlockStyle: function tryToRemoveBlockStyle(editorState) {
    var selection = editorState.getSelection();
    var offset = selection.getAnchorOffset();
    if (selection.isCollapsed() && offset === 0) {
      var key = selection.getAnchorKey();
      var content = editorState.getCurrentContent();
      var block = content.getBlockForKey(key);

      var firstBlock = content.getFirstBlock();
      if (block.getLength() > 0 && block !== firstBlock) {
        return null;
      }

      var type = block.getType();
      var blockBefore = content.getBlockBefore(key);
      if (type === 'code-block' && blockBefore && blockBefore.getType() === 'code-block' && blockBefore.getLength() !== 0) {
        return null;
      }

      if (type !== 'unstyled') {
        return DraftModifier_1.setBlockType(content, selection, 'unstyled');
      }
    }
    return null;
  }
};

var RichTextEditorUtil_1 = RichTextEditorUtil;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule splitTextIntoTextBlocks
 * @format
 * 
 */

var NEWLINE_REGEX = /\r\n?|\n/g;

function splitTextIntoTextBlocks(text) {
  return text.split(NEWLINE_REGEX);
}

var splitTextIntoTextBlocks_1 = splitTextIntoTextBlocks;

/**
 * Paste content.
 */
function editOnPaste(editor, e) {
  e.preventDefault();
  var data = new DataTransfer_1(e.clipboardData);

  // Get files, unless this is likely to be a string the user wants inline.
  if (!data.isRichText()) {
    var files = data.getFiles();
    var defaultFileText = data.getText();
    if (files.length > 0) {
      // Allow customized paste handling for images, etc. Otherwise, fall
      // through to insert text contents into the editor.
      if (editor.props.handlePastedFiles && isEventHandled_1(editor.props.handlePastedFiles(files))) {
        return;
      }

      getTextContentFromFiles_1(files, function ( /*string*/fileText) {
        fileText = fileText || defaultFileText;
        if (!fileText) {
          return;
        }

        var editorState = editor._latestEditorState;
        var blocks = splitTextIntoTextBlocks_1(fileText);
        var character = CharacterMetadata_1.create({
          style: editorState.getCurrentInlineStyle(),
          entity: getEntityKeyForSelection_1(editorState.getCurrentContent(), editorState.getSelection())
        });
        var currentBlockType = RichTextEditorUtil_1.getCurrentBlockType(editorState);

        var text = DraftPasteProcessor_1.processText(blocks, character, currentBlockType);
        var fragment = BlockMapBuilder_1.createFromArray(text);

        var withInsertedText = DraftModifier_1.replaceWithFragment(editorState.getCurrentContent(), editorState.getSelection(), fragment);

        editor.update(EditorState_1.push(editorState, withInsertedText, 'insert-fragment'));
      });

      return;
    }
  }

  var textBlocks = [];
  var text = data.getText();
  var html = data.getHTML();
  var editorState = editor._latestEditorState;

  if (editor.props.handlePastedText && isEventHandled_1(editor.props.handlePastedText(text, html, editorState))) {
    return;
  }

  if (text) {
    textBlocks = splitTextIntoTextBlocks_1(text);
  }

  if (!editor.props.stripPastedStyles) {
    // If the text from the paste event is rich content that matches what we
    // already have on the internal clipboard, assume that we should just use
    // the clipboard fragment for the paste. This will allow us to preserve
    // styling and entities, if any are present. Note that newlines are
    // stripped during comparison -- this is because copy/paste within the
    // editor in Firefox and IE will not include empty lines. The resulting
    // paste will preserve the newlines correctly.
    var internalClipboard = editor.getClipboard();
    if (data.isRichText() && internalClipboard) {
      if (
      // If the editorKey is present in the pasted HTML, it should be safe to
      // assume this is an internal paste.
      html.indexOf(editor.getEditorKey()) !== -1 ||
      // The copy may have been made within a single block, in which case the
      // editor key won't be part of the paste. In this case, just check
      // whether the pasted text matches the internal clipboard.
      textBlocks.length === 1 && internalClipboard.size === 1 && internalClipboard.first().getText() === text) {
        editor.update(insertFragment$1(editor._latestEditorState, internalClipboard));
        return;
      }
    } else if (internalClipboard && data.types.includes('com.apple.webarchive') && !data.types.includes('text/html') && areTextBlocksAndClipboardEqual(textBlocks, internalClipboard)) {
      // Safari does not properly store text/html in some cases.
      // Use the internalClipboard if present and equal to what is on
      // the clipboard. See https://bugs.webkit.org/show_bug.cgi?id=19893.
      editor.update(insertFragment$1(editor._latestEditorState, internalClipboard));
      return;
    }

    // If there is html paste data, try to parse that.
    if (html) {
      var htmlFragment = DraftPasteProcessor_1.processHTML(html, editor.props.blockRenderMap);
      if (htmlFragment) {
        var contentBlocks = htmlFragment.contentBlocks,
            entityMap = htmlFragment.entityMap;

        if (contentBlocks) {
          var htmlMap = BlockMapBuilder_1.createFromArray(contentBlocks);
          editor.update(insertFragment$1(editor._latestEditorState, htmlMap, entityMap));
          return;
        }
      }
    }

    // Otherwise, create a new fragment from our pasted text. Also
    // empty the internal clipboard, since it's no longer valid.
    editor.setClipboard(null);
  }

  if (textBlocks.length) {
    var character = CharacterMetadata_1.create({
      style: editorState.getCurrentInlineStyle(),
      entity: getEntityKeyForSelection_1(editorState.getCurrentContent(), editorState.getSelection())
    });

    var currentBlockType = RichTextEditorUtil_1.getCurrentBlockType(editorState);

    var textFragment = DraftPasteProcessor_1.processText(textBlocks, character, currentBlockType);

    var textMap = BlockMapBuilder_1.createFromArray(textFragment);
    editor.update(insertFragment$1(editor._latestEditorState, textMap));
  }
}

function insertFragment$1(editorState, fragment, entityMap) {
  var newContent = DraftModifier_1.replaceWithFragment(editorState.getCurrentContent(), editorState.getSelection(), fragment);
  // TODO: merge the entity map once we stop using DraftEntity
  // like this:
  // const mergedEntityMap = newContent.getEntityMap().merge(entityMap);

  return EditorState_1.push(editorState, newContent.set('entityMap', entityMap), 'insert-fragment');
}

function areTextBlocksAndClipboardEqual(textBlocks, blockMap) {
  return textBlocks.length === blockMap.size && blockMap.valueSeq().every(function (block, ii) {
    return block.getText() === textBlocks[ii];
  });
}

var editOnPaste_1 = editOnPaste;

/**
 * Convert the current selection range to an anchor/focus pair of offset keys
 * and values that can be interpreted by components.
 */
function getDraftEditorSelection(editorState, root) {
  var selection = commonjsGlobal.getSelection();

  // No active selection.
  if (selection.rangeCount === 0) {
    return {
      selectionState: editorState.getSelection().set('hasFocus', false),
      needsRecovery: false
    };
  }

  return getDraftEditorSelectionWithNodes_1(editorState, root, selection.anchorNode, selection.anchorOffset, selection.focusNode, selection.focusOffset);
}

var getDraftEditorSelection_1 = getDraftEditorSelection;

function editOnSelect(editor) {
  if (editor._blockSelectEvents || editor._latestEditorState !== editor.props.editorState) {
    return;
  }

  var editorState = editor.props.editorState;
  var editorNode = reactDom.findDOMNode(editor.editorContainer);
  !editorNode ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Missing editorNode') : invariant_1(false) : void 0;
  !(editorNode.firstChild instanceof HTMLElement) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'editorNode.firstChild is not an HTMLElement') : invariant_1(false) : void 0;
  var documentSelection = getDraftEditorSelection_1(editorState, editorNode.firstChild);
  var updatedSelectionState = documentSelection.selectionState;

  if (updatedSelectionState !== editorState.getSelection()) {
    if (documentSelection.needsRecovery) {
      editorState = EditorState_1.forceSelection(editorState, updatedSelectionState);
    } else {
      editorState = EditorState_1.acceptSelection(editorState, updatedSelectionState);
    }
    editor.update(editorState);
  }
}

var editOnSelect_1 = editOnSelect;

var DraftEditorEditHandler = {
  onBeforeInput: editOnBeforeInput_1,
  onBlur: editOnBlur_1,
  onCompositionStart: editOnCompositionStart_1,
  onCopy: editOnCopy_1,
  onCut: editOnCut_1,
  onDragOver: editOnDragOver_1,
  onDragStart: editOnDragStart_1,
  onFocus: editOnFocus_1,
  onInput: editOnInput_1,
  onKeyDown: editOnKeyDown_1,
  onPaste: editOnPaste_1,
  onSelect: editOnSelect_1
};

var DraftEditorEditHandler_1 = DraftEditorEditHandler;

function _classCallCheck$f(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn$a(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits$a(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }





/**
 * This component is responsible for rendering placeholder text for the
 * `DraftEditor` component.
 *
 * Override placeholder style via CSS.
 */
var DraftEditorPlaceholder = function (_React$Component) {
  _inherits$a(DraftEditorPlaceholder, _React$Component);

  function DraftEditorPlaceholder() {
    _classCallCheck$f(this, DraftEditorPlaceholder);

    return _possibleConstructorReturn$a(this, _React$Component.apply(this, arguments));
  }

  DraftEditorPlaceholder.prototype.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {
    return this.props.text !== nextProps.text || this.props.editorState.getSelection().getHasFocus() !== nextProps.editorState.getSelection().getHasFocus();
  };

  DraftEditorPlaceholder.prototype.render = function render() {
    var hasFocus = this.props.editorState.getSelection().getHasFocus();

    var className = cx_1({
      'public/DraftEditorPlaceholder/root': true,
      'public/DraftEditorPlaceholder/hasFocus': hasFocus
    });

    var contentStyle = {
      whiteSpace: 'pre-wrap'
    };

    return React.createElement(
      'div',
      { className: className },
      React.createElement(
        'div',
        {
          className: cx_1('public/DraftEditorPlaceholder/inner'),
          id: this.props.accessibilityID,
          style: contentStyle },
        this.props.text
      )
    );
  };

  return DraftEditorPlaceholder;
}(React.Component);

var DraftEditorPlaceholder_react = DraftEditorPlaceholder;

var isOSX$1 = UserAgent_1.isPlatform('Mac OS X');
var isWindows = UserAgent_1.isPlatform('Windows');

// Firefox on OSX had a bug resulting in navigation instead of cursor movement.
// This bug was fixed in Firefox 29. Feature detection is virtually impossible
// so we just check the version number. See #342765.
var shouldFixFirefoxMovement = isOSX$1 && UserAgent_1.isBrowser('Firefox < 29');

var hasCommandModifier = KeyBindingUtil_1.hasCommandModifier,
    isCtrlKeyCommand = KeyBindingUtil_1.isCtrlKeyCommand;


function shouldRemoveWord(e) {
  return isOSX$1 && e.altKey || isCtrlKeyCommand(e);
}

/**
 * Get the appropriate undo/redo command for a Z key command.
 */
function getZCommand(e) {
  if (!hasCommandModifier(e)) {
    return null;
  }
  return e.shiftKey ? 'redo' : 'undo';
}

function getDeleteCommand(e) {
  // Allow default "cut" behavior for Windows on Shift + Delete.
  if (isWindows && e.shiftKey) {
    return null;
  }
  return shouldRemoveWord(e) ? 'delete-word' : 'delete';
}

function getBackspaceCommand(e) {
  if (hasCommandModifier(e) && isOSX$1) {
    return 'backspace-to-start-of-line';
  }
  return shouldRemoveWord(e) ? 'backspace-word' : 'backspace';
}

/**
 * Retrieve a bound key command for the given event.
 */
function getDefaultKeyBinding(e) {
  switch (e.keyCode) {
    case 66:
      // B
      return hasCommandModifier(e) ? 'bold' : null;
    case 68:
      // D
      return isCtrlKeyCommand(e) ? 'delete' : null;
    case 72:
      // H
      return isCtrlKeyCommand(e) ? 'backspace' : null;
    case 73:
      // I
      return hasCommandModifier(e) ? 'italic' : null;
    case 74:
      // J
      return hasCommandModifier(e) ? 'code' : null;
    case 75:
      // K
      return !isWindows && isCtrlKeyCommand(e) ? 'secondary-cut' : null;
    case 77:
      // M
      return isCtrlKeyCommand(e) ? 'split-block' : null;
    case 79:
      // O
      return isCtrlKeyCommand(e) ? 'split-block' : null;
    case 84:
      // T
      return isOSX$1 && isCtrlKeyCommand(e) ? 'transpose-characters' : null;
    case 85:
      // U
      return hasCommandModifier(e) ? 'underline' : null;
    case 87:
      // W
      return isOSX$1 && isCtrlKeyCommand(e) ? 'backspace-word' : null;
    case 89:
      // Y
      if (isCtrlKeyCommand(e)) {
        return isWindows ? 'redo' : 'secondary-paste';
      }
      return null;
    case 90:
      // Z
      return getZCommand(e) || null;
    case Keys.RETURN:
      return 'split-block';
    case Keys.DELETE:
      return getDeleteCommand(e);
    case Keys.BACKSPACE:
      return getBackspaceCommand(e);
    // LEFT/RIGHT handlers serve as a workaround for a Firefox bug.
    case Keys.LEFT:
      return shouldFixFirefoxMovement && hasCommandModifier(e) ? 'move-selection-to-start-of-block' : null;
    case Keys.RIGHT:
      return shouldFixFirefoxMovement && hasCommandModifier(e) ? 'move-selection-to-end-of-block' : null;
    default:
      return null;
  }
}

var getDefaultKeyBinding_1 = getDefaultKeyBinding;

var _extends$5 = objectAssign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _classCallCheck$g(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn$b(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits$b(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }























var isIE = UserAgent_1.isBrowser('IE');

// IE does not support the `input` event on contentEditable, so we can't
// observe spellcheck behavior.
var allowSpellCheck = !isIE;

// Define a set of handler objects to correspond to each possible `mode`
// of editor behavior.
var handlerMap = {
  edit: DraftEditorEditHandler_1,
  composite: DraftEditorCompositionHandler_1,
  drag: DraftEditorDragHandler_1,
  cut: null,
  render: null
};

/**
 * `DraftEditor` is the root editor component. It composes a `contentEditable`
 * div, and provides a wide variety of useful function props for managing the
 * state of the editor. See `DraftEditorProps` for details.
 */
var DraftEditor = function (_React$Component) {
  _inherits$b(DraftEditor, _React$Component);

  function DraftEditor(props) {
    _classCallCheck$g(this, DraftEditor);

    var _this = _possibleConstructorReturn$b(this, _React$Component.call(this, props));

    _this.focus = function (scrollPosition) {
      var editorState = _this.props.editorState;

      var alreadyHasFocus = editorState.getSelection().getHasFocus();
      var editorNode = reactDom.findDOMNode(_this.editor);

      if (!editorNode) {
        // once in a while people call 'focus' in a setTimeout, and the node has
        // been deleted, so it can be null in that case.
        return;
      }

      var scrollParent = Style_1.getScrollParent(editorNode);

      var _ref = scrollPosition || getScrollPosition_1(scrollParent),
          x = _ref.x,
          y = _ref.y;

      !(editorNode instanceof HTMLElement) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'editorNode is not an HTMLElement') : invariant_1(false) : void 0;
      editorNode.focus();

      // Restore scroll position
      if (scrollParent === window) {
        window.scrollTo(x, y);
      } else {
        Scroll_1.setTop(scrollParent, y);
      }

      // On Chrome and Safari, calling focus on contenteditable focuses the
      // cursor at the first character. This is something you don't expect when
      // you're clicking on an input element but not directly on a character.
      // Put the cursor back where it was before the blur.
      if (!alreadyHasFocus) {
        _this.update(EditorState_1.forceSelection(editorState, editorState.getSelection()));
      }
    };

    _this.blur = function () {
      var editorNode = reactDom.findDOMNode(_this.editor);
      !(editorNode instanceof HTMLElement) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'editorNode is not an HTMLElement') : invariant_1(false) : void 0;
      editorNode.blur();
    };

    _this.setMode = function (mode) {
      _this._handler = handlerMap[mode];
    };

    _this.exitCurrentMode = function () {
      _this.setMode('edit');
    };

    _this.restoreEditorDOM = function (scrollPosition) {
      _this.setState({ contentsKey: _this.state.contentsKey + 1 }, function () {
        _this.focus(scrollPosition);
      });
    };

    _this.setClipboard = function (clipboard) {
      _this._clipboard = clipboard;
    };

    _this.getClipboard = function () {
      return _this._clipboard;
    };

    _this.update = function (editorState) {
      _this._latestEditorState = editorState;
      _this.props.onChange(editorState);
    };

    _this.onDragEnter = function () {
      _this._dragCount++;
    };

    _this.onDragLeave = function () {
      _this._dragCount--;
      if (_this._dragCount === 0) {
        _this.exitCurrentMode();
      }
    };

    _this._blockSelectEvents = false;
    _this._clipboard = null;
    _this._handler = null;
    _this._dragCount = 0;
    _this._editorKey = props.editorKey || generateRandomKey_1();
    _this._placeholderAccessibilityID = 'placeholder-' + _this._editorKey;
    _this._latestEditorState = props.editorState;
    _this._latestCommittedEditorState = props.editorState;

    _this._onBeforeInput = _this._buildHandler('onBeforeInput');
    _this._onBlur = _this._buildHandler('onBlur');
    _this._onCharacterData = _this._buildHandler('onCharacterData');
    _this._onCompositionEnd = _this._buildHandler('onCompositionEnd');
    _this._onCompositionStart = _this._buildHandler('onCompositionStart');
    _this._onCopy = _this._buildHandler('onCopy');
    _this._onCut = _this._buildHandler('onCut');
    _this._onDragEnd = _this._buildHandler('onDragEnd');
    _this._onDragOver = _this._buildHandler('onDragOver');
    _this._onDragStart = _this._buildHandler('onDragStart');
    _this._onDrop = _this._buildHandler('onDrop');
    _this._onInput = _this._buildHandler('onInput');
    _this._onFocus = _this._buildHandler('onFocus');
    _this._onKeyDown = _this._buildHandler('onKeyDown');
    _this._onKeyPress = _this._buildHandler('onKeyPress');
    _this._onKeyUp = _this._buildHandler('onKeyUp');
    _this._onMouseDown = _this._buildHandler('onMouseDown');
    _this._onMouseUp = _this._buildHandler('onMouseUp');
    _this._onPaste = _this._buildHandler('onPaste');
    _this._onSelect = _this._buildHandler('onSelect');

    _this.getEditorKey = function () {
      return _this._editorKey;
    };

    // See `restoreEditorDOM()`.
    _this.state = { contentsKey: 0 };
    return _this;
  }

  /**
   * Build a method that will pass the event to the specified handler method.
   * This allows us to look up the correct handler function for the current
   * editor mode, if any has been specified.
   */


  /**
   * Define proxies that can route events to the current handler.
   */


  DraftEditor.prototype._buildHandler = function _buildHandler(eventName) {
    var _this2 = this;

    return function (e) {
      if (!_this2.props.readOnly) {
        var method = _this2._handler && _this2._handler[eventName];
        method && method(_this2, e);
      }
    };
  };

  DraftEditor.prototype._showPlaceholder = function _showPlaceholder() {
    return !!this.props.placeholder && !this.props.editorState.isInCompositionMode() && !this.props.editorState.getCurrentContent().hasText();
  };

  DraftEditor.prototype._renderPlaceholder = function _renderPlaceholder() {
    if (this._showPlaceholder()) {
      var placeHolderProps = {
        text: nullthrows_1(this.props.placeholder),
        editorState: this.props.editorState,
        textAlignment: this.props.textAlignment,
        accessibilityID: this._placeholderAccessibilityID
      };

      return React.createElement(DraftEditorPlaceholder_react, placeHolderProps);
    }
    return null;
  };

  DraftEditor.prototype.render = function render() {
    var _this3 = this;

    var _props = this.props,
        blockRenderMap = _props.blockRenderMap,
        blockRendererFn = _props.blockRendererFn,
        blockStyleFn = _props.blockStyleFn,
        customStyleFn = _props.customStyleFn,
        customStyleMap = _props.customStyleMap,
        editorState = _props.editorState,
        readOnly = _props.readOnly,
        textAlignment = _props.textAlignment,
        textDirectionality = _props.textDirectionality;


    var rootClass = cx_1({
      'DraftEditor/root': true,
      'DraftEditor/alignLeft': textAlignment === 'left',
      'DraftEditor/alignRight': textAlignment === 'right',
      'DraftEditor/alignCenter': textAlignment === 'center'
    });

    var contentStyle = {
      outline: 'none',
      // fix parent-draggable Safari bug. #1326
      userSelect: 'text',
      WebkitUserSelect: 'text',
      whiteSpace: 'pre-wrap',
      wordWrap: 'break-word'
    };

    // The aria-expanded and aria-haspopup properties should only be rendered
    // for a combobox.
    var ariaRole = this.props.role || 'textbox';
    var ariaExpanded = ariaRole === 'combobox' ? !!this.props.ariaExpanded : null;

    var editorContentsProps = {
      blockRenderMap: blockRenderMap,
      blockRendererFn: blockRendererFn,
      blockStyleFn: blockStyleFn,
      customStyleMap: _extends$5({}, DefaultDraftInlineStyle, customStyleMap),
      customStyleFn: customStyleFn,
      editorKey: this._editorKey,
      editorState: editorState,
      key: 'contents' + this.state.contentsKey,
      textDirectionality: textDirectionality
    };

    return React.createElement(
      'div',
      { className: rootClass },
      this._renderPlaceholder(),
      React.createElement(
        'div',
        {
          className: cx_1('DraftEditor/editorContainer'),
          ref: function ref(_ref3) {
            return _this3.editorContainer = _ref3;
          } },
        React.createElement(
          'div',
          {
            'aria-activedescendant': readOnly ? null : this.props.ariaActiveDescendantID,
            'aria-autocomplete': readOnly ? null : this.props.ariaAutoComplete,
            'aria-controls': readOnly ? null : this.props.ariaControls,
            'aria-describedby': this.props.ariaDescribedBy || this._placeholderAccessibilityID,
            'aria-expanded': readOnly ? null : ariaExpanded,
            'aria-label': this.props.ariaLabel,
            'aria-labelledby': this.props.ariaLabelledBy,
            'aria-multiline': this.props.ariaMultiline,
            autoCapitalize: this.props.autoCapitalize,
            autoComplete: this.props.autoComplete,
            autoCorrect: this.props.autoCorrect,
            className: cx_1({
              // Chrome's built-in translation feature mutates the DOM in ways
              // that Draft doesn't expect (ex: adding <font> tags inside
              // DraftEditorLeaf spans) and causes problems. We add notranslate
              // here which makes its autotranslation skip over this subtree.
              notranslate: !readOnly,
              'public/DraftEditor/content': true
            }),
            contentEditable: !readOnly,
            'data-testid': this.props.webDriverTestID,
            onBeforeInput: this._onBeforeInput,
            onBlur: this._onBlur,
            onCompositionEnd: this._onCompositionEnd,
            onCompositionStart: this._onCompositionStart,
            onCopy: this._onCopy,
            onCut: this._onCut,
            onDragEnd: this._onDragEnd,
            onDragEnter: this.onDragEnter,
            onDragLeave: this.onDragLeave,
            onDragOver: this._onDragOver,
            onDragStart: this._onDragStart,
            onDrop: this._onDrop,
            onFocus: this._onFocus,
            onInput: this._onInput,
            onKeyDown: this._onKeyDown,
            onKeyPress: this._onKeyPress,
            onKeyUp: this._onKeyUp,
            onMouseUp: this._onMouseUp,
            onPaste: this._onPaste,
            onSelect: this._onSelect,
            ref: function ref(_ref2) {
              return _this3.editor = _ref2;
            },
            role: readOnly ? null : ariaRole,
            spellCheck: allowSpellCheck && this.props.spellCheck,
            style: contentStyle,
            suppressContentEditableWarning: true,
            tabIndex: this.props.tabIndex },
          React.createElement(DraftEditorContents_react, editorContentsProps)
        )
      )
    );
  };

  DraftEditor.prototype.componentDidMount = function componentDidMount() {
    this.setMode('edit');

    /**
     * IE has a hardcoded "feature" that attempts to convert link text into
     * anchors in contentEditable DOM. This breaks the editor's expectations of
     * the DOM, and control is lost. Disable it to make IE behave.
     * See: http://blogs.msdn.com/b/ieinternals/archive/2010/09/15/
     * ie9-beta-minor-change-list.aspx
     */
    if (isIE) {
      document.execCommand('AutoUrlDetect', false, false);
    }
  };

  /**
   * Prevent selection events from affecting the current editor state. This
   * is mostly intended to defend against IE, which fires off `selectionchange`
   * events regardless of whether the selection is set via the browser or
   * programmatically. We only care about selection events that occur because
   * of browser interaction, not re-renders and forced selections.
   */


  DraftEditor.prototype.componentWillUpdate = function componentWillUpdate(nextProps) {
    this._blockSelectEvents = true;
    this._latestEditorState = nextProps.editorState;
  };

  DraftEditor.prototype.componentDidUpdate = function componentDidUpdate() {
    this._blockSelectEvents = false;
    this._latestCommittedEditorState = this.props.editorState;
  };

  /**
   * Used via `this.focus()`.
   *
   * Force focus back onto the editor node.
   *
   * We attempt to preserve scroll position when focusing. You can also pass
   * a specified scroll position (for cases like `cut` behavior where it should
   * be restored to a known position).
   */


  /**
   * Used via `this.setMode(...)`.
   *
   * Set the behavior mode for the editor component. This switches the current
   * handler module to ensure that DOM events are managed appropriately for
   * the active mode.
   */


  /**
   * Used via `this.restoreEditorDOM()`.
   *
   * Force a complete re-render of the DraftEditorContents based on the current
   * EditorState. This is useful when we know we are going to lose control of
   * the DOM state (cut command, IME) and we want to make sure that
   * reconciliation occurs on a version of the DOM that is synchronized with
   * our EditorState.
   */


  /**
   * Used via `this.setClipboard(...)`.
   *
   * Set the clipboard state for a cut/copy event.
   */


  /**
   * Used via `this.getClipboard()`.
   *
   * Retrieve the clipboard state for a cut/copy event.
   */


  /**
   * Used via `this.update(...)`.
   *
   * Propagate a new `EditorState` object to higher-level components. This is
   * the method by which event handlers inform the `DraftEditor` component of
   * state changes. A component that composes a `DraftEditor` **must** provide
   * an `onChange` prop to receive state updates passed along from this
   * function.
   */


  /**
   * Used in conjunction with `onDragLeave()`, by counting the number of times
   * a dragged element enters and leaves the editor (or any of its children),
   * to determine when the dragged element absolutely leaves the editor.
   */


  /**
   * See `onDragEnter()`.
   */


  return DraftEditor;
}(React.Component);

DraftEditor.defaultProps = {
  blockRenderMap: DefaultDraftBlockRenderMap_1,
  blockRendererFn: emptyFunction_1.thatReturnsNull,
  blockStyleFn: emptyFunction_1.thatReturns(''),
  keyBindingFn: getDefaultKeyBinding_1,
  readOnly: false,
  spellCheck: false,
  stripPastedStyles: false
};


var DraftEditor_react = DraftEditor;

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule DraftStringKey
 * @format
 * 
 */

var DraftStringKey = {
  stringify: function stringify(key) {
    return '_' + String(key);
  },

  unstringify: function unstringify(key) {
    return key.slice(1);
  }
};

var DraftStringKey_1 = DraftStringKey;

var strlen$1 = UnicodeUtils_1.strlen;

/**
 * Convert to UTF-8 character counts for storage.
 */

function encodeEntityRanges(block, storageMap) {
  var encoded = [];
  block.findEntityRanges(function (character) {
    return !!character.getEntity();
  }, function ( /*number*/start, /*number*/end) {
    var text = block.getText();
    var key = block.getEntityAt(start);
    encoded.push({
      offset: strlen$1(text.slice(0, start)),
      length: strlen$1(text.slice(start, end)),
      // Encode the key as a number for range storage.
      key: Number(storageMap[DraftStringKey_1.stringify(key)])
    });
  });
  return encoded;
}

var encodeEntityRanges_1 = encodeEntityRanges;

var areEqual$1 = function areEqual(a, b) {
  return a === b;
};
var isTruthy = function isTruthy(a) {
  return !!a;
};
var EMPTY_ARRAY = [];

/**
 * Helper function for getting encoded styles for each inline style. Convert
 * to UTF-8 character counts for storage.
 */
function getEncodedInlinesForType(block, styleList, styleToEncode) {
  var ranges = [];

  // Obtain an array with ranges for only the specified style.
  var filteredInlines = styleList.map(function (style) {
    return style.has(styleToEncode);
  }).toList();

  findRangesImmutable_1(filteredInlines, areEqual$1,
  // We only want to keep ranges with nonzero style values.
  isTruthy, function (start, end) {
    var text = block.getText();
    ranges.push({
      offset: UnicodeUtils_1.strlen(text.slice(0, start)),
      length: UnicodeUtils_1.strlen(text.slice(start, end)),
      style: styleToEncode
    });
  });

  return ranges;
}

/*
 * Retrieve the encoded arrays of inline styles, with each individual style
 * treated separately.
 */
function encodeInlineStyleRanges(block) {
  var styleList = block.getCharacterList().map(function (c) {
    return c.getStyle();
  }).toList();
  var ranges = styleList.flatten().toSet().map(function (style) {
    return getEncodedInlinesForType(block, styleList, style);
  });

  return Array.prototype.concat.apply(EMPTY_ARRAY, ranges.toJS());
}

var encodeInlineStyleRanges_1 = encodeInlineStyleRanges;

var _extends$6 = objectAssign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };









var createRawBlock = function createRawBlock(block, entityStorageMap) {
  return {
    key: block.getKey(),
    text: block.getText(),
    type: block.getType(),
    depth: block.getDepth(),
    inlineStyleRanges: encodeInlineStyleRanges_1(block),
    entityRanges: encodeEntityRanges_1(block, entityStorageMap),
    data: block.getData().toObject()
  };
};

var insertRawBlock = function insertRawBlock(block, entityMap, rawBlocks, blockCacheRef) {
  if (block instanceof ContentBlock_1) {
    rawBlocks.push(createRawBlock(block, entityMap));
    return;
  }

  !(block instanceof ContentBlockNode_1) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'block is not a BlockNode') : invariant_1(false) : void 0;

  var parentKey = block.getParentKey();
  var rawBlock = blockCacheRef[block.getKey()] = _extends$6({}, createRawBlock(block, entityMap), {
    children: []
  });

  if (parentKey) {
    blockCacheRef[parentKey].children.push(rawBlock);
    return;
  }

  rawBlocks.push(rawBlock);
};

var encodeRawBlocks = function encodeRawBlocks(contentState, rawState) {
  var entityMap = rawState.entityMap;


  var rawBlocks = [];

  var blockCacheRef = {};
  var entityCacheRef = {};
  var entityStorageKey = 0;

  contentState.getBlockMap().forEach(function (block) {
    block.findEntityRanges(function (character) {
      return character.getEntity() !== null;
    }, function (start) {
      var entityKey = block.getEntityAt(start);
      // Stringify to maintain order of otherwise numeric keys.
      var stringifiedEntityKey = DraftStringKey_1.stringify(entityKey);
      // This makes this function resilient to two entities
      // erroneously having the same key
      if (entityCacheRef[stringifiedEntityKey]) {
        return;
      }
      entityCacheRef[stringifiedEntityKey] = entityKey;
      // we need the `any` casting here since this is a temporary state
      // where we will later on flip the entity map and populate it with
      // real entity, at this stage we just need to map back the entity
      // key used by the BlockNode
      entityMap[stringifiedEntityKey] = '' + entityStorageKey;
      entityStorageKey++;
    });

    insertRawBlock(block, entityMap, rawBlocks, blockCacheRef);
  });

  return {
    blocks: rawBlocks,
    entityMap: entityMap
  };
};

// Flip storage map so that our storage keys map to global
// DraftEntity keys.
var encodeRawEntityMap = function encodeRawEntityMap(contentState, rawState) {
  var blocks = rawState.blocks,
      entityMap = rawState.entityMap;


  var rawEntityMap = {};

  Object.keys(entityMap).forEach(function (key, index) {
    var entity = contentState.getEntity(DraftStringKey_1.unstringify(key));
    rawEntityMap[index] = {
      type: entity.getType(),
      mutability: entity.getMutability(),
      data: entity.getData()
    };
  });

  return {
    blocks: blocks,
    entityMap: rawEntityMap
  };
};

var convertFromDraftStateToRaw = function convertFromDraftStateToRaw(contentState) {
  var rawDraftContentState = {
    entityMap: {},
    blocks: []
  };

  // add blocks
  rawDraftContentState = encodeRawBlocks(contentState, rawDraftContentState);

  // add entities
  rawDraftContentState = encodeRawEntityMap(contentState, rawDraftContentState);

  return rawDraftContentState;
};

var convertFromDraftStateToRaw_1 = convertFromDraftStateToRaw;

var _extends$7 = objectAssign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule DraftTreeAdapter
 * @format
 * 
 *
 * This is unstable and not part of the public API and should not be used by
 * production systems. This file may be update/removed without notice.
 */



var traverseInDepthOrder = function traverseInDepthOrder(blocks, fn) {
  var stack = [].concat(blocks).reverse();
  while (stack.length) {
    var _block = stack.pop();

    fn(_block);

    var children = _block.children;

    !Array.isArray(children) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Invalid tree raw block') : invariant_1(false) : void 0;

    stack = stack.concat([].concat(children.reverse()));
  }
};

var isListBlock = function isListBlock(block) {
  if (!(block && block.type)) {
    return false;
  }
  var type = block.type;

  return type === 'unordered-list-item' || type === 'ordered-list-item';
};

var addDepthToChildren = function addDepthToChildren(block) {
  if (Array.isArray(block.children)) {
    block.children = block.children.map(function (child) {
      return child.type === block.type ? _extends$7({}, child, { depth: (block.depth || 0) + 1 }) : child;
    });
  }
};

/**
 * This adapter is intended to be be used as an adapter to draft tree data
 *
 * draft state <=====> draft tree state
 */
var DraftTreeAdapter = {
  /**
   * Converts from a tree raw state back to  draft raw state
   */
  fromRawTreeStateToRawState: function fromRawTreeStateToRawState(draftTreeState) {
    var blocks = draftTreeState.blocks;

    var transformedBlocks = [];

    !Array.isArray(blocks) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Invalid raw state') : invariant_1(false) : void 0;

    if (!Array.isArray(blocks) || !blocks.length) {
      return draftTreeState;
    }

    traverseInDepthOrder(blocks, function (block) {
      var newBlock = _extends$7({}, block);

      if (isListBlock(block)) {
        newBlock.depth = newBlock.depth || 0;
        addDepthToChildren(block);
      }

      delete newBlock.children;

      transformedBlocks.push(newBlock);
    });

    draftTreeState.blocks = transformedBlocks;

    return _extends$7({}, draftTreeState, {
      blocks: transformedBlocks
    });
  },


  /**
   * Converts from draft raw state to tree draft state
   */
  fromRawStateToRawTreeState: function fromRawStateToRawTreeState(draftState) {
    var lastListDepthCacheRef = {};
    var transformedBlocks = [];

    draftState.blocks.forEach(function (block) {
      var isList = isListBlock(block);
      var depth = block.depth || 0;
      var treeBlock = _extends$7({}, block, {
        children: []
      });

      if (!isList) {
        // reset the cache path
        lastListDepthCacheRef = {};
        transformedBlocks.push(treeBlock);
        return;
      }

      // update our depth cache reference path
      lastListDepthCacheRef[depth] = treeBlock;

      // if we are greater than zero we must have seen a parent already
      if (depth > 0) {
        var parent = lastListDepthCacheRef[depth - 1];

        !parent ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'Invalid depth for RawDraftContentBlock') : invariant_1(false) : void 0;

        // push nested list blocks
        parent.children.push(treeBlock);
        return;
      }

      // push root list blocks
      transformedBlocks.push(treeBlock);
    });

    return _extends$7({}, draftState, {
      blocks: transformedBlocks
    });
  }
};

var DraftTreeAdapter_1 = DraftTreeAdapter;

var List$c = immutable.List;


function createCharacterList(inlineStyles, entities) {
  var characterArray = inlineStyles.map(function (style, ii) {
    var entity = entities[ii];
    return CharacterMetadata_1.create({ style: style, entity: entity });
  });
  return List$c(characterArray);
}

var createCharacterList_1 = createCharacterList;

var substr$1 = UnicodeUtils_1.substr;

/**
 * Convert to native JavaScript string lengths to determine ranges.
 */

function decodeEntityRanges(text, ranges) {
  var entities = Array(text.length).fill(null);
  if (ranges) {
    ranges.forEach(function (range) {
      // Using Unicode-enabled substrings converted to JavaScript lengths,
      // fill the output array with entity keys.
      var start = substr$1(text, 0, range.offset).length;
      var end = start + substr$1(text, range.offset, range.length).length;
      for (var ii = start; ii < end; ii++) {
        entities[ii] = range.key;
      }
    });
  }
  return entities;
}

var decodeEntityRanges_1 = decodeEntityRanges;

var OrderedSet$6 = immutable.OrderedSet;



var substr$2 = UnicodeUtils_1.substr;


var EMPTY_SET$3 = OrderedSet$6();

/**
 * Convert to native JavaScript string lengths to determine ranges.
 */
function decodeInlineStyleRanges(text, ranges) {
  var styles = Array(text.length).fill(EMPTY_SET$3);
  if (ranges) {
    ranges.forEach(function ( /*object*/range) {
      var cursor = substr$2(text, 0, range.offset).length;
      var end = cursor + substr$2(text, range.offset, range.length).length;
      while (cursor < end) {
        styles[cursor] = styles[cursor].add(range.style);
        cursor++;
      }
    });
  }
  return styles;
}

var decodeInlineStyleRanges_1 = decodeInlineStyleRanges;

var _extends$8 = objectAssign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var List$d = immutable.List,
    Map$a = immutable.Map,
    OrderedMap$4 = immutable.OrderedMap;


var decodeBlockNodeConfig = function decodeBlockNodeConfig(block, entityMap) {
  var key = block.key,
      type = block.type,
      data = block.data,
      text = block.text,
      depth = block.depth;


  var blockNodeConfig = {
    text: text,
    depth: depth || 0,
    type: type || 'unstyled',
    key: key || generateRandomKey_1(),
    data: Map$a(data),
    characterList: decodeCharacterList(block, entityMap)
  };

  return blockNodeConfig;
};

var decodeCharacterList = function decodeCharacterList(block, entityMap) {
  var text = block.text,
      rawEntityRanges = block.entityRanges,
      rawInlineStyleRanges = block.inlineStyleRanges;


  var entityRanges = rawEntityRanges || [];
  var inlineStyleRanges = rawInlineStyleRanges || [];

  // Translate entity range keys to the DraftEntity map.
  return createCharacterList_1(decodeInlineStyleRanges_1(text, inlineStyleRanges), decodeEntityRanges_1(text, entityRanges.filter(function (range) {
    return entityMap.hasOwnProperty(range.key);
  }).map(function (range) {
    return _extends$8({}, range, { key: entityMap[range.key] });
  })));
};

var decodeContentBlocks = function decodeContentBlocks(blocks, entityMap) {
  return OrderedMap$4(blocks.map(function (block) {
    var contentBlock = new ContentBlock_1(decodeBlockNodeConfig(block, entityMap));
    return [contentBlock.getKey(), contentBlock];
  }));
};

var decodeRawBlocks = function decodeRawBlocks(rawState, entityMap) {
  var isTreeRawBlock = Array.isArray(rawState.blocks[0].children);
  var rawBlocks =  rawState.blocks;

  {
    return decodeContentBlocks(isTreeRawBlock ? DraftTreeAdapter_1.fromRawTreeStateToRawState(rawState).blocks : rawBlocks, entityMap);
  }
};

var decodeRawEntityMap = function decodeRawEntityMap(rawState) {
  var rawEntityMap = rawState.entityMap;

  var entityMap = {};

  // TODO: Update this once we completely remove DraftEntity
  Object.keys(rawEntityMap).forEach(function (rawEntityKey) {
    var _rawEntityMap$rawEnti = rawEntityMap[rawEntityKey],
        type = _rawEntityMap$rawEnti.type,
        mutability = _rawEntityMap$rawEnti.mutability,
        data = _rawEntityMap$rawEnti.data;

    // get the key reference to created entity

    entityMap[rawEntityKey] = DraftEntity_1.__create(type, mutability, data || {});
  });

  return entityMap;
};

var convertFromRawToDraftState = function convertFromRawToDraftState(rawState) {
  !Array.isArray(rawState.blocks) ? process.env.NODE_ENV !== 'production' ? invariant_1(false, 'invalid RawDraftContentState') : invariant_1(false) : void 0;

  // decode entities
  var entityMap = decodeRawEntityMap(rawState);

  // decode blockMap
  var blockMap = decodeRawBlocks(rawState, entityMap);

  // create initial selection
  var selectionState = blockMap.isEmpty() ? new SelectionState_1() : SelectionState_1.createEmpty(blockMap.first().getKey());

  return new ContentState_1({
    blockMap: blockMap,
    entityMap: entityMap,
    selectionBefore: selectionState,
    selectionAfter: selectionState
  });
};

var convertFromRawToDraftState_1 = convertFromRawToDraftState;

/**
 * Like range.getBoundingClientRect() but normalizes for browser bugs.
 */
function getRangeBoundingClientRect(range) {
  // "Return a DOMRect object describing the smallest rectangle that includes
  // the first rectangle in list and all of the remaining rectangles of which
  // the height or width is not zero."
  // http://www.w3.org/TR/cssom-view/#dom-range-getboundingclientrect
  var rects = getRangeClientRects_1(range);
  var top = 0;
  var right = 0;
  var bottom = 0;
  var left = 0;

  if (rects.length) {
    // If the first rectangle has 0 width, we use the second, this is needed
    // because Chrome renders a 0 width rectangle when the selection contains
    // a line break.
    if (rects.length > 1 && rects[0].width === 0) {
      var _rects$ = rects[1];
      top = _rects$.top;
      right = _rects$.right;
      bottom = _rects$.bottom;
      left = _rects$.left;
    } else {
      var _rects$2 = rects[0];
      top = _rects$2.top;
      right = _rects$2.right;
      bottom = _rects$2.bottom;
      left = _rects$2.left;
    }

    for (var ii = 1; ii < rects.length; ii++) {
      var rect = rects[ii];
      if (rect.height !== 0 && rect.width !== 0) {
        top = Math.min(top, rect.top);
        right = Math.max(right, rect.right);
        bottom = Math.max(bottom, rect.bottom);
        left = Math.min(left, rect.left);
      }
    }
  }

  return {
    top: top,
    right: right,
    bottom: bottom,
    left: left,
    width: right - left,
    height: bottom - top
  };
}

var getRangeBoundingClientRect_1 = getRangeBoundingClientRect;

/**
 * Return the bounding ClientRect for the visible DOM selection, if any.
 * In cases where there are no selected ranges or the bounding rect is
 * temporarily invalid, return null.
 */
function getVisibleSelectionRect(global) {
  var selection = global.getSelection();
  if (!selection.rangeCount) {
    return null;
  }

  var range = selection.getRangeAt(0);
  var boundingRect = getRangeBoundingClientRect_1(range);
  var top = boundingRect.top,
      right = boundingRect.right,
      bottom = boundingRect.bottom,
      left = boundingRect.left;

  // When a re-render leads to a node being removed, the DOM selection will
  // temporarily be placed on an ancestor node, which leads to an invalid
  // bounding rect. Discard this state.

  if (top === 0 && right === 0 && bottom === 0 && left === 0) {
    return null;
  }

  return boundingRect;
}

var getVisibleSelectionRect_1 = getVisibleSelectionRect;

var DraftPublic = {
  Editor: DraftEditor_react,
  EditorBlock: DraftEditorBlock_react,
  EditorState: EditorState_1,

  CompositeDecorator: CompositeDraftDecorator_1,
  Entity: DraftEntity_1,
  EntityInstance: DraftEntityInstance_1,

  BlockMapBuilder: BlockMapBuilder_1,
  CharacterMetadata: CharacterMetadata_1,
  ContentBlock: ContentBlock_1,
  ContentState: ContentState_1,
  SelectionState: SelectionState_1,

  AtomicBlockUtils: AtomicBlockUtils_1,
  KeyBindingUtil: KeyBindingUtil_1,
  Modifier: DraftModifier_1,
  RichUtils: RichTextEditorUtil_1,

  DefaultDraftBlockRenderMap: DefaultDraftBlockRenderMap_1,
  DefaultDraftInlineStyle: DefaultDraftInlineStyle,

  convertFromHTML: convertFromHTMLToContentBlocks,
  convertFromRaw: convertFromRawToDraftState_1,
  convertToRaw: convertFromDraftStateToRaw_1,
  genKey: generateRandomKey_1,
  getDefaultKeyBinding: getDefaultKeyBinding_1,
  getVisibleSelectionRect: getVisibleSelectionRect_1
};

var Draft = DraftPublic;
var Draft_1 = Draft.Editor;
var Draft_3 = Draft.EditorState;
var Draft_4 = Draft.CompositeDecorator;
var Draft_14 = Draft.Modifier;
var Draft_15 = Draft.RichUtils;
var Draft_20 = Draft.convertToRaw;

var immutable$1 = createCommonjsModule(function (module, exports) {
/**
 *  Copyright (c) 2014-2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

(function (global, factory) {
   module.exports = factory() ;
}(commonjsGlobal, function () {var SLICE$0 = Array.prototype.slice;

  function createClass(ctor, superClass) {
    if (superClass) {
      ctor.prototype = Object.create(superClass.prototype);
    }
    ctor.prototype.constructor = ctor;
  }

  function Iterable(value) {
      return isIterable(value) ? value : Seq(value);
    }


  createClass(KeyedIterable, Iterable);
    function KeyedIterable(value) {
      return isKeyed(value) ? value : KeyedSeq(value);
    }


  createClass(IndexedIterable, Iterable);
    function IndexedIterable(value) {
      return isIndexed(value) ? value : IndexedSeq(value);
    }


  createClass(SetIterable, Iterable);
    function SetIterable(value) {
      return isIterable(value) && !isAssociative(value) ? value : SetSeq(value);
    }



  function isIterable(maybeIterable) {
    return !!(maybeIterable && maybeIterable[IS_ITERABLE_SENTINEL]);
  }

  function isKeyed(maybeKeyed) {
    return !!(maybeKeyed && maybeKeyed[IS_KEYED_SENTINEL]);
  }

  function isIndexed(maybeIndexed) {
    return !!(maybeIndexed && maybeIndexed[IS_INDEXED_SENTINEL]);
  }

  function isAssociative(maybeAssociative) {
    return isKeyed(maybeAssociative) || isIndexed(maybeAssociative);
  }

  function isOrdered(maybeOrdered) {
    return !!(maybeOrdered && maybeOrdered[IS_ORDERED_SENTINEL]);
  }

  Iterable.isIterable = isIterable;
  Iterable.isKeyed = isKeyed;
  Iterable.isIndexed = isIndexed;
  Iterable.isAssociative = isAssociative;
  Iterable.isOrdered = isOrdered;

  Iterable.Keyed = KeyedIterable;
  Iterable.Indexed = IndexedIterable;
  Iterable.Set = SetIterable;


  var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';
  var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';
  var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';
  var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';

  // Used for setting prototype methods that IE8 chokes on.
  var DELETE = 'delete';

  // Constants describing the size of trie nodes.
  var SHIFT = 5; // Resulted in best performance after ______?
  var SIZE = 1 << SHIFT;
  var MASK = SIZE - 1;

  // A consistent shared value representing "not set" which equals nothing other
  // than itself, and nothing that could be provided externally.
  var NOT_SET = {};

  // Boolean references, Rough equivalent of `bool &`.
  var CHANGE_LENGTH = { value: false };
  var DID_ALTER = { value: false };

  function MakeRef(ref) {
    ref.value = false;
    return ref;
  }

  function SetRef(ref) {
    ref && (ref.value = true);
  }

  // A function which returns a value representing an "owner" for transient writes
  // to tries. The return value will only ever equal itself, and will not equal
  // the return of any subsequent call of this function.
  function OwnerID() {}

  // http://jsperf.com/copy-array-inline
  function arrCopy(arr, offset) {
    offset = offset || 0;
    var len = Math.max(0, arr.length - offset);
    var newArr = new Array(len);
    for (var ii = 0; ii < len; ii++) {
      newArr[ii] = arr[ii + offset];
    }
    return newArr;
  }

  function ensureSize(iter) {
    if (iter.size === undefined) {
      iter.size = iter.__iterate(returnTrue);
    }
    return iter.size;
  }

  function wrapIndex(iter, index) {
    // This implements "is array index" which the ECMAString spec defines as:
    //
    //     A String property name P is an array index if and only if
    //     ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal
    //     to 2^32−1.
    //
    // http://www.ecma-international.org/ecma-262/6.0/#sec-array-exotic-objects
    if (typeof index !== 'number') {
      var uint32Index = index >>> 0; // N >>> 0 is shorthand for ToUint32
      if ('' + uint32Index !== index || uint32Index === 4294967295) {
        return NaN;
      }
      index = uint32Index;
    }
    return index < 0 ? ensureSize(iter) + index : index;
  }

  function returnTrue() {
    return true;
  }

  function wholeSlice(begin, end, size) {
    return (begin === 0 || (size !== undefined && begin <= -size)) &&
      (end === undefined || (size !== undefined && end >= size));
  }

  function resolveBegin(begin, size) {
    return resolveIndex(begin, size, 0);
  }

  function resolveEnd(end, size) {
    return resolveIndex(end, size, size);
  }

  function resolveIndex(index, size, defaultIndex) {
    return index === undefined ?
      defaultIndex :
      index < 0 ?
        Math.max(0, size + index) :
        size === undefined ?
          index :
          Math.min(size, index);
  }

  /* global Symbol */

  var ITERATE_KEYS = 0;
  var ITERATE_VALUES = 1;
  var ITERATE_ENTRIES = 2;

  var REAL_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
  var FAUX_ITERATOR_SYMBOL = '@@iterator';

  var ITERATOR_SYMBOL = REAL_ITERATOR_SYMBOL || FAUX_ITERATOR_SYMBOL;


  function Iterator(next) {
      this.next = next;
    }

    Iterator.prototype.toString = function() {
      return '[Iterator]';
    };


  Iterator.KEYS = ITERATE_KEYS;
  Iterator.VALUES = ITERATE_VALUES;
  Iterator.ENTRIES = ITERATE_ENTRIES;

  Iterator.prototype.inspect =
  Iterator.prototype.toSource = function () { return this.toString(); };
  Iterator.prototype[ITERATOR_SYMBOL] = function () {
    return this;
  };


  function iteratorValue(type, k, v, iteratorResult) {
    var value = type === 0 ? k : type === 1 ? v : [k, v];
    iteratorResult ? (iteratorResult.value = value) : (iteratorResult = {
      value: value, done: false
    });
    return iteratorResult;
  }

  function iteratorDone() {
    return { value: undefined, done: true };
  }

  function hasIterator(maybeIterable) {
    return !!getIteratorFn(maybeIterable);
  }

  function isIterator(maybeIterator) {
    return maybeIterator && typeof maybeIterator.next === 'function';
  }

  function getIterator(iterable) {
    var iteratorFn = getIteratorFn(iterable);
    return iteratorFn && iteratorFn.call(iterable);
  }

  function getIteratorFn(iterable) {
    var iteratorFn = iterable && (
      (REAL_ITERATOR_SYMBOL && iterable[REAL_ITERATOR_SYMBOL]) ||
      iterable[FAUX_ITERATOR_SYMBOL]
    );
    if (typeof iteratorFn === 'function') {
      return iteratorFn;
    }
  }

  function isArrayLike(value) {
    return value && typeof value.length === 'number';
  }

  createClass(Seq, Iterable);
    function Seq(value) {
      return value === null || value === undefined ? emptySequence() :
        isIterable(value) ? value.toSeq() : seqFromValue(value);
    }

    Seq.of = function(/*...values*/) {
      return Seq(arguments);
    };

    Seq.prototype.toSeq = function() {
      return this;
    };

    Seq.prototype.toString = function() {
      return this.__toString('Seq {', '}');
    };

    Seq.prototype.cacheResult = function() {
      if (!this._cache && this.__iterateUncached) {
        this._cache = this.entrySeq().toArray();
        this.size = this._cache.length;
      }
      return this;
    };

    // abstract __iterateUncached(fn, reverse)

    Seq.prototype.__iterate = function(fn, reverse) {
      return seqIterate(this, fn, reverse, true);
    };

    // abstract __iteratorUncached(type, reverse)

    Seq.prototype.__iterator = function(type, reverse) {
      return seqIterator(this, type, reverse, true);
    };



  createClass(KeyedSeq, Seq);
    function KeyedSeq(value) {
      return value === null || value === undefined ?
        emptySequence().toKeyedSeq() :
        isIterable(value) ?
          (isKeyed(value) ? value.toSeq() : value.fromEntrySeq()) :
          keyedSeqFromValue(value);
    }

    KeyedSeq.prototype.toKeyedSeq = function() {
      return this;
    };



  createClass(IndexedSeq, Seq);
    function IndexedSeq(value) {
      return value === null || value === undefined ? emptySequence() :
        !isIterable(value) ? indexedSeqFromValue(value) :
        isKeyed(value) ? value.entrySeq() : value.toIndexedSeq();
    }

    IndexedSeq.of = function(/*...values*/) {
      return IndexedSeq(arguments);
    };

    IndexedSeq.prototype.toIndexedSeq = function() {
      return this;
    };

    IndexedSeq.prototype.toString = function() {
      return this.__toString('Seq [', ']');
    };

    IndexedSeq.prototype.__iterate = function(fn, reverse) {
      return seqIterate(this, fn, reverse, false);
    };

    IndexedSeq.prototype.__iterator = function(type, reverse) {
      return seqIterator(this, type, reverse, false);
    };



  createClass(SetSeq, Seq);
    function SetSeq(value) {
      return (
        value === null || value === undefined ? emptySequence() :
        !isIterable(value) ? indexedSeqFromValue(value) :
        isKeyed(value) ? value.entrySeq() : value
      ).toSetSeq();
    }

    SetSeq.of = function(/*...values*/) {
      return SetSeq(arguments);
    };

    SetSeq.prototype.toSetSeq = function() {
      return this;
    };



  Seq.isSeq = isSeq;
  Seq.Keyed = KeyedSeq;
  Seq.Set = SetSeq;
  Seq.Indexed = IndexedSeq;

  var IS_SEQ_SENTINEL = '@@__IMMUTABLE_SEQ__@@';

  Seq.prototype[IS_SEQ_SENTINEL] = true;



  createClass(ArraySeq, IndexedSeq);
    function ArraySeq(array) {
      this._array = array;
      this.size = array.length;
    }

    ArraySeq.prototype.get = function(index, notSetValue) {
      return this.has(index) ? this._array[wrapIndex(this, index)] : notSetValue;
    };

    ArraySeq.prototype.__iterate = function(fn, reverse) {
      var array = this._array;
      var maxIndex = array.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        if (fn(array[reverse ? maxIndex - ii : ii], ii, this) === false) {
          return ii + 1;
        }
      }
      return ii;
    };

    ArraySeq.prototype.__iterator = function(type, reverse) {
      var array = this._array;
      var maxIndex = array.length - 1;
      var ii = 0;
      return new Iterator(function() 
        {return ii > maxIndex ?
          iteratorDone() :
          iteratorValue(type, ii, array[reverse ? maxIndex - ii++ : ii++])}
      );
    };



  createClass(ObjectSeq, KeyedSeq);
    function ObjectSeq(object) {
      var keys = Object.keys(object);
      this._object = object;
      this._keys = keys;
      this.size = keys.length;
    }

    ObjectSeq.prototype.get = function(key, notSetValue) {
      if (notSetValue !== undefined && !this.has(key)) {
        return notSetValue;
      }
      return this._object[key];
    };

    ObjectSeq.prototype.has = function(key) {
      return this._object.hasOwnProperty(key);
    };

    ObjectSeq.prototype.__iterate = function(fn, reverse) {
      var object = this._object;
      var keys = this._keys;
      var maxIndex = keys.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        var key = keys[reverse ? maxIndex - ii : ii];
        if (fn(object[key], key, this) === false) {
          return ii + 1;
        }
      }
      return ii;
    };

    ObjectSeq.prototype.__iterator = function(type, reverse) {
      var object = this._object;
      var keys = this._keys;
      var maxIndex = keys.length - 1;
      var ii = 0;
      return new Iterator(function()  {
        var key = keys[reverse ? maxIndex - ii : ii];
        return ii++ > maxIndex ?
          iteratorDone() :
          iteratorValue(type, key, object[key]);
      });
    };

  ObjectSeq.prototype[IS_ORDERED_SENTINEL] = true;


  createClass(IterableSeq, IndexedSeq);
    function IterableSeq(iterable) {
      this._iterable = iterable;
      this.size = iterable.length || iterable.size;
    }

    IterableSeq.prototype.__iterateUncached = function(fn, reverse) {
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterable = this._iterable;
      var iterator = getIterator(iterable);
      var iterations = 0;
      if (isIterator(iterator)) {
        var step;
        while (!(step = iterator.next()).done) {
          if (fn(step.value, iterations++, this) === false) {
            break;
          }
        }
      }
      return iterations;
    };

    IterableSeq.prototype.__iteratorUncached = function(type, reverse) {
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterable = this._iterable;
      var iterator = getIterator(iterable);
      if (!isIterator(iterator)) {
        return new Iterator(iteratorDone);
      }
      var iterations = 0;
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step : iteratorValue(type, iterations++, step.value);
      });
    };



  createClass(IteratorSeq, IndexedSeq);
    function IteratorSeq(iterator) {
      this._iterator = iterator;
      this._iteratorCache = [];
    }

    IteratorSeq.prototype.__iterateUncached = function(fn, reverse) {
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterator = this._iterator;
      var cache = this._iteratorCache;
      var iterations = 0;
      while (iterations < cache.length) {
        if (fn(cache[iterations], iterations++, this) === false) {
          return iterations;
        }
      }
      var step;
      while (!(step = iterator.next()).done) {
        var val = step.value;
        cache[iterations] = val;
        if (fn(val, iterations++, this) === false) {
          break;
        }
      }
      return iterations;
    };

    IteratorSeq.prototype.__iteratorUncached = function(type, reverse) {
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = this._iterator;
      var cache = this._iteratorCache;
      var iterations = 0;
      return new Iterator(function()  {
        if (iterations >= cache.length) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          cache[iterations] = step.value;
        }
        return iteratorValue(type, iterations, cache[iterations++]);
      });
    };




  // # pragma Helper functions

  function isSeq(maybeSeq) {
    return !!(maybeSeq && maybeSeq[IS_SEQ_SENTINEL]);
  }

  var EMPTY_SEQ;

  function emptySequence() {
    return EMPTY_SEQ || (EMPTY_SEQ = new ArraySeq([]));
  }

  function keyedSeqFromValue(value) {
    var seq =
      Array.isArray(value) ? new ArraySeq(value).fromEntrySeq() :
      isIterator(value) ? new IteratorSeq(value).fromEntrySeq() :
      hasIterator(value) ? new IterableSeq(value).fromEntrySeq() :
      typeof value === 'object' ? new ObjectSeq(value) :
      undefined;
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of [k, v] entries, '+
        'or keyed object: ' + value
      );
    }
    return seq;
  }

  function indexedSeqFromValue(value) {
    var seq = maybeIndexedSeqFromValue(value);
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of values: ' + value
      );
    }
    return seq;
  }

  function seqFromValue(value) {
    var seq = maybeIndexedSeqFromValue(value) ||
      (typeof value === 'object' && new ObjectSeq(value));
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of values, or keyed object: ' + value
      );
    }
    return seq;
  }

  function maybeIndexedSeqFromValue(value) {
    return (
      isArrayLike(value) ? new ArraySeq(value) :
      isIterator(value) ? new IteratorSeq(value) :
      hasIterator(value) ? new IterableSeq(value) :
      undefined
    );
  }

  function seqIterate(seq, fn, reverse, useKeys) {
    var cache = seq._cache;
    if (cache) {
      var maxIndex = cache.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        var entry = cache[reverse ? maxIndex - ii : ii];
        if (fn(entry[1], useKeys ? entry[0] : ii, seq) === false) {
          return ii + 1;
        }
      }
      return ii;
    }
    return seq.__iterateUncached(fn, reverse);
  }

  function seqIterator(seq, type, reverse, useKeys) {
    var cache = seq._cache;
    if (cache) {
      var maxIndex = cache.length - 1;
      var ii = 0;
      return new Iterator(function()  {
        var entry = cache[reverse ? maxIndex - ii : ii];
        return ii++ > maxIndex ?
          iteratorDone() :
          iteratorValue(type, useKeys ? entry[0] : ii - 1, entry[1]);
      });
    }
    return seq.__iteratorUncached(type, reverse);
  }

  function fromJS(json, converter) {
    return converter ?
      fromJSWith(converter, json, '', {'': json}) :
      fromJSDefault(json);
  }

  function fromJSWith(converter, json, key, parentJSON) {
    if (Array.isArray(json)) {
      return converter.call(parentJSON, key, IndexedSeq(json).map(function(v, k)  {return fromJSWith(converter, v, k, json)}));
    }
    if (isPlainObj(json)) {
      return converter.call(parentJSON, key, KeyedSeq(json).map(function(v, k)  {return fromJSWith(converter, v, k, json)}));
    }
    return json;
  }

  function fromJSDefault(json) {
    if (Array.isArray(json)) {
      return IndexedSeq(json).map(fromJSDefault).toList();
    }
    if (isPlainObj(json)) {
      return KeyedSeq(json).map(fromJSDefault).toMap();
    }
    return json;
  }

  function isPlainObj(value) {
    return value && (value.constructor === Object || value.constructor === undefined);
  }

  /**
   * An extension of the "same-value" algorithm as [described for use by ES6 Map
   * and Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Key_equality)
   *
   * NaN is considered the same as NaN, however -0 and 0 are considered the same
   * value, which is different from the algorithm described by
   * [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is).
   *
   * This is extended further to allow Objects to describe the values they
   * represent, by way of `valueOf` or `equals` (and `hashCode`).
   *
   * Note: because of this extension, the key equality of Immutable.Map and the
   * value equality of Immutable.Set will differ from ES6 Map and Set.
   *
   * ### Defining custom values
   *
   * The easiest way to describe the value an object represents is by implementing
   * `valueOf`. For example, `Date` represents a value by returning a unix
   * timestamp for `valueOf`:
   *
   *     var date1 = new Date(1234567890000); // Fri Feb 13 2009 ...
   *     var date2 = new Date(1234567890000);
   *     date1.valueOf(); // 1234567890000
   *     assert( date1 !== date2 );
   *     assert( Immutable.is( date1, date2 ) );
   *
   * Note: overriding `valueOf` may have other implications if you use this object
   * where JavaScript expects a primitive, such as implicit string coercion.
   *
   * For more complex types, especially collections, implementing `valueOf` may
   * not be performant. An alternative is to implement `equals` and `hashCode`.
   *
   * `equals` takes another object, presumably of similar type, and returns true
   * if the it is equal. Equality is symmetrical, so the same result should be
   * returned if this and the argument are flipped.
   *
   *     assert( a.equals(b) === b.equals(a) );
   *
   * `hashCode` returns a 32bit integer number representing the object which will
   * be used to determine how to store the value object in a Map or Set. You must
   * provide both or neither methods, one must not exist without the other.
   *
   * Also, an important relationship between these methods must be upheld: if two
   * values are equal, they *must* return the same hashCode. If the values are not
   * equal, they might have the same hashCode; this is called a hash collision,
   * and while undesirable for performance reasons, it is acceptable.
   *
   *     if (a.equals(b)) {
   *       assert( a.hashCode() === b.hashCode() );
   *     }
   *
   * All Immutable collections implement `equals` and `hashCode`.
   *
   */
  function is(valueA, valueB) {
    if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
      return true;
    }
    if (!valueA || !valueB) {
      return false;
    }
    if (typeof valueA.valueOf === 'function' &&
        typeof valueB.valueOf === 'function') {
      valueA = valueA.valueOf();
      valueB = valueB.valueOf();
      if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
        return true;
      }
      if (!valueA || !valueB) {
        return false;
      }
    }
    if (typeof valueA.equals === 'function' &&
        typeof valueB.equals === 'function' &&
        valueA.equals(valueB)) {
      return true;
    }
    return false;
  }

  function deepEqual(a, b) {
    if (a === b) {
      return true;
    }

    if (
      !isIterable(b) ||
      a.size !== undefined && b.size !== undefined && a.size !== b.size ||
      a.__hash !== undefined && b.__hash !== undefined && a.__hash !== b.__hash ||
      isKeyed(a) !== isKeyed(b) ||
      isIndexed(a) !== isIndexed(b) ||
      isOrdered(a) !== isOrdered(b)
    ) {
      return false;
    }

    if (a.size === 0 && b.size === 0) {
      return true;
    }

    var notAssociative = !isAssociative(a);

    if (isOrdered(a)) {
      var entries = a.entries();
      return b.every(function(v, k)  {
        var entry = entries.next().value;
        return entry && is(entry[1], v) && (notAssociative || is(entry[0], k));
      }) && entries.next().done;
    }

    var flipped = false;

    if (a.size === undefined) {
      if (b.size === undefined) {
        if (typeof a.cacheResult === 'function') {
          a.cacheResult();
        }
      } else {
        flipped = true;
        var _ = a;
        a = b;
        b = _;
      }
    }

    var allEqual = true;
    var bSize = b.__iterate(function(v, k)  {
      if (notAssociative ? !a.has(v) :
          flipped ? !is(v, a.get(k, NOT_SET)) : !is(a.get(k, NOT_SET), v)) {
        allEqual = false;
        return false;
      }
    });

    return allEqual && a.size === bSize;
  }

  createClass(Repeat, IndexedSeq);

    function Repeat(value, times) {
      if (!(this instanceof Repeat)) {
        return new Repeat(value, times);
      }
      this._value = value;
      this.size = times === undefined ? Infinity : Math.max(0, times);
      if (this.size === 0) {
        if (EMPTY_REPEAT) {
          return EMPTY_REPEAT;
        }
        EMPTY_REPEAT = this;
      }
    }

    Repeat.prototype.toString = function() {
      if (this.size === 0) {
        return 'Repeat []';
      }
      return 'Repeat [ ' + this._value + ' ' + this.size + ' times ]';
    };

    Repeat.prototype.get = function(index, notSetValue) {
      return this.has(index) ? this._value : notSetValue;
    };

    Repeat.prototype.includes = function(searchValue) {
      return is(this._value, searchValue);
    };

    Repeat.prototype.slice = function(begin, end) {
      var size = this.size;
      return wholeSlice(begin, end, size) ? this :
        new Repeat(this._value, resolveEnd(end, size) - resolveBegin(begin, size));
    };

    Repeat.prototype.reverse = function() {
      return this;
    };

    Repeat.prototype.indexOf = function(searchValue) {
      if (is(this._value, searchValue)) {
        return 0;
      }
      return -1;
    };

    Repeat.prototype.lastIndexOf = function(searchValue) {
      if (is(this._value, searchValue)) {
        return this.size;
      }
      return -1;
    };

    Repeat.prototype.__iterate = function(fn, reverse) {
      for (var ii = 0; ii < this.size; ii++) {
        if (fn(this._value, ii, this) === false) {
          return ii + 1;
        }
      }
      return ii;
    };

    Repeat.prototype.__iterator = function(type, reverse) {var this$0 = this;
      var ii = 0;
      return new Iterator(function() 
        {return ii < this$0.size ? iteratorValue(type, ii++, this$0._value) : iteratorDone()}
      );
    };

    Repeat.prototype.equals = function(other) {
      return other instanceof Repeat ?
        is(this._value, other._value) :
        deepEqual(other);
    };


  var EMPTY_REPEAT;

  function invariant(condition, error) {
    if (!condition) throw new Error(error);
  }

  createClass(Range, IndexedSeq);

    function Range(start, end, step) {
      if (!(this instanceof Range)) {
        return new Range(start, end, step);
      }
      invariant(step !== 0, 'Cannot step a Range by 0');
      start = start || 0;
      if (end === undefined) {
        end = Infinity;
      }
      step = step === undefined ? 1 : Math.abs(step);
      if (end < start) {
        step = -step;
      }
      this._start = start;
      this._end = end;
      this._step = step;
      this.size = Math.max(0, Math.ceil((end - start) / step - 1) + 1);
      if (this.size === 0) {
        if (EMPTY_RANGE) {
          return EMPTY_RANGE;
        }
        EMPTY_RANGE = this;
      }
    }

    Range.prototype.toString = function() {
      if (this.size === 0) {
        return 'Range []';
      }
      return 'Range [ ' +
        this._start + '...' + this._end +
        (this._step > 1 ? ' by ' + this._step : '') +
      ' ]';
    };

    Range.prototype.get = function(index, notSetValue) {
      return this.has(index) ?
        this._start + wrapIndex(this, index) * this._step :
        notSetValue;
    };

    Range.prototype.includes = function(searchValue) {
      var possibleIndex = (searchValue - this._start) / this._step;
      return possibleIndex >= 0 &&
        possibleIndex < this.size &&
        possibleIndex === Math.floor(possibleIndex);
    };

    Range.prototype.slice = function(begin, end) {
      if (wholeSlice(begin, end, this.size)) {
        return this;
      }
      begin = resolveBegin(begin, this.size);
      end = resolveEnd(end, this.size);
      if (end <= begin) {
        return new Range(0, 0);
      }
      return new Range(this.get(begin, this._end), this.get(end, this._end), this._step);
    };

    Range.prototype.indexOf = function(searchValue) {
      var offsetValue = searchValue - this._start;
      if (offsetValue % this._step === 0) {
        var index = offsetValue / this._step;
        if (index >= 0 && index < this.size) {
          return index
        }
      }
      return -1;
    };

    Range.prototype.lastIndexOf = function(searchValue) {
      return this.indexOf(searchValue);
    };

    Range.prototype.__iterate = function(fn, reverse) {
      var maxIndex = this.size - 1;
      var step = this._step;
      var value = reverse ? this._start + maxIndex * step : this._start;
      for (var ii = 0; ii <= maxIndex; ii++) {
        if (fn(value, ii, this) === false) {
          return ii + 1;
        }
        value += reverse ? -step : step;
      }
      return ii;
    };

    Range.prototype.__iterator = function(type, reverse) {
      var maxIndex = this.size - 1;
      var step = this._step;
      var value = reverse ? this._start + maxIndex * step : this._start;
      var ii = 0;
      return new Iterator(function()  {
        var v = value;
        value += reverse ? -step : step;
        return ii > maxIndex ? iteratorDone() : iteratorValue(type, ii++, v);
      });
    };

    Range.prototype.equals = function(other) {
      return other instanceof Range ?
        this._start === other._start &&
        this._end === other._end &&
        this._step === other._step :
        deepEqual(this, other);
    };


  var EMPTY_RANGE;

  createClass(Collection, Iterable);
    function Collection() {
      throw TypeError('Abstract');
    }


  createClass(KeyedCollection, Collection);function KeyedCollection() {}

  createClass(IndexedCollection, Collection);function IndexedCollection() {}

  createClass(SetCollection, Collection);function SetCollection() {}


  Collection.Keyed = KeyedCollection;
  Collection.Indexed = IndexedCollection;
  Collection.Set = SetCollection;

  var imul =
    typeof Math.imul === 'function' && Math.imul(0xffffffff, 2) === -2 ?
    Math.imul :
    function imul(a, b) {
      a = a | 0; // int
      b = b | 0; // int
      var c = a & 0xffff;
      var d = b & 0xffff;
      // Shift by 0 fixes the sign on the high part.
      return (c * d) + ((((a >>> 16) * d + c * (b >>> 16)) << 16) >>> 0) | 0; // int
    };

  // v8 has an optimization for storing 31-bit signed numbers.
  // Values which have either 00 or 11 as the high order bits qualify.
  // This function drops the highest order bit in a signed number, maintaining
  // the sign bit.
  function smi(i32) {
    return ((i32 >>> 1) & 0x40000000) | (i32 & 0xBFFFFFFF);
  }

  function hash(o) {
    if (o === false || o === null || o === undefined) {
      return 0;
    }
    if (typeof o.valueOf === 'function') {
      o = o.valueOf();
      if (o === false || o === null || o === undefined) {
        return 0;
      }
    }
    if (o === true) {
      return 1;
    }
    var type = typeof o;
    if (type === 'number') {
      var h = o | 0;
      if (h !== o) {
        h ^= o * 0xFFFFFFFF;
      }
      while (o > 0xFFFFFFFF) {
        o /= 0xFFFFFFFF;
        h ^= o;
      }
      return smi(h);
    }
    if (type === 'string') {
      return o.length > STRING_HASH_CACHE_MIN_STRLEN ? cachedHashString(o) : hashString(o);
    }
    if (typeof o.hashCode === 'function') {
      return o.hashCode();
    }
    if (type === 'object') {
      return hashJSObj(o);
    }
    if (typeof o.toString === 'function') {
      return hashString(o.toString());
    }
    throw new Error('Value type ' + type + ' cannot be hashed.');
  }

  function cachedHashString(string) {
    var hash = stringHashCache[string];
    if (hash === undefined) {
      hash = hashString(string);
      if (STRING_HASH_CACHE_SIZE === STRING_HASH_CACHE_MAX_SIZE) {
        STRING_HASH_CACHE_SIZE = 0;
        stringHashCache = {};
      }
      STRING_HASH_CACHE_SIZE++;
      stringHashCache[string] = hash;
    }
    return hash;
  }

  // http://jsperf.com/hashing-strings
  function hashString(string) {
    // This is the hash from JVM
    // The hash code for a string is computed as
    // s[0] * 31 ^ (n - 1) + s[1] * 31 ^ (n - 2) + ... + s[n - 1],
    // where s[i] is the ith character of the string and n is the length of
    // the string. We "mod" the result to make it between 0 (inclusive) and 2^31
    // (exclusive) by dropping high bits.
    var hash = 0;
    for (var ii = 0; ii < string.length; ii++) {
      hash = 31 * hash + string.charCodeAt(ii) | 0;
    }
    return smi(hash);
  }

  function hashJSObj(obj) {
    var hash;
    if (usingWeakMap) {
      hash = weakMap.get(obj);
      if (hash !== undefined) {
        return hash;
      }
    }

    hash = obj[UID_HASH_KEY];
    if (hash !== undefined) {
      return hash;
    }

    if (!canDefineProperty) {
      hash = obj.propertyIsEnumerable && obj.propertyIsEnumerable[UID_HASH_KEY];
      if (hash !== undefined) {
        return hash;
      }

      hash = getIENodeHash(obj);
      if (hash !== undefined) {
        return hash;
      }
    }

    hash = ++objHashUID;
    if (objHashUID & 0x40000000) {
      objHashUID = 0;
    }

    if (usingWeakMap) {
      weakMap.set(obj, hash);
    } else if (isExtensible !== undefined && isExtensible(obj) === false) {
      throw new Error('Non-extensible objects are not allowed as keys.');
    } else if (canDefineProperty) {
      Object.defineProperty(obj, UID_HASH_KEY, {
        'enumerable': false,
        'configurable': false,
        'writable': false,
        'value': hash
      });
    } else if (obj.propertyIsEnumerable !== undefined &&
               obj.propertyIsEnumerable === obj.constructor.prototype.propertyIsEnumerable) {
      // Since we can't define a non-enumerable property on the object
      // we'll hijack one of the less-used non-enumerable properties to
      // save our hash on it. Since this is a function it will not show up in
      // `JSON.stringify` which is what we want.
      obj.propertyIsEnumerable = function() {
        return this.constructor.prototype.propertyIsEnumerable.apply(this, arguments);
      };
      obj.propertyIsEnumerable[UID_HASH_KEY] = hash;
    } else if (obj.nodeType !== undefined) {
      // At this point we couldn't get the IE `uniqueID` to use as a hash
      // and we couldn't use a non-enumerable property to exploit the
      // dontEnum bug so we simply add the `UID_HASH_KEY` on the node
      // itself.
      obj[UID_HASH_KEY] = hash;
    } else {
      throw new Error('Unable to set a non-enumerable property on object.');
    }

    return hash;
  }

  // Get references to ES5 object methods.
  var isExtensible = Object.isExtensible;

  // True if Object.defineProperty works as expected. IE8 fails this test.
  var canDefineProperty = (function() {
    try {
      Object.defineProperty({}, '@', {});
      return true;
    } catch (e) {
      return false;
    }
  }());

  // IE has a `uniqueID` property on DOM nodes. We can construct the hash from it
  // and avoid memory leaks from the IE cloneNode bug.
  function getIENodeHash(node) {
    if (node && node.nodeType > 0) {
      switch (node.nodeType) {
        case 1: // Element
          return node.uniqueID;
        case 9: // Document
          return node.documentElement && node.documentElement.uniqueID;
      }
    }
  }

  // If possible, use a WeakMap.
  var usingWeakMap = typeof WeakMap === 'function';
  var weakMap;
  if (usingWeakMap) {
    weakMap = new WeakMap();
  }

  var objHashUID = 0;

  var UID_HASH_KEY = '__immutablehash__';
  if (typeof Symbol === 'function') {
    UID_HASH_KEY = Symbol(UID_HASH_KEY);
  }

  var STRING_HASH_CACHE_MIN_STRLEN = 16;
  var STRING_HASH_CACHE_MAX_SIZE = 255;
  var STRING_HASH_CACHE_SIZE = 0;
  var stringHashCache = {};

  function assertNotInfinite(size) {
    invariant(
      size !== Infinity,
      'Cannot perform this action with an infinite size.'
    );
  }

  createClass(Map, KeyedCollection);

    // @pragma Construction

    function Map(value) {
      return value === null || value === undefined ? emptyMap() :
        isMap(value) && !isOrdered(value) ? value :
        emptyMap().withMutations(function(map ) {
          var iter = KeyedIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v, k)  {return map.set(k, v)});
        });
    }

    Map.prototype.toString = function() {
      return this.__toString('Map {', '}');
    };

    // @pragma Access

    Map.prototype.get = function(k, notSetValue) {
      return this._root ?
        this._root.get(0, undefined, k, notSetValue) :
        notSetValue;
    };

    // @pragma Modification

    Map.prototype.set = function(k, v) {
      return updateMap(this, k, v);
    };

    Map.prototype.setIn = function(keyPath, v) {
      return this.updateIn(keyPath, NOT_SET, function()  {return v});
    };

    Map.prototype.remove = function(k) {
      return updateMap(this, k, NOT_SET);
    };

    Map.prototype.deleteIn = function(keyPath) {
      return this.updateIn(keyPath, function()  {return NOT_SET});
    };

    Map.prototype.update = function(k, notSetValue, updater) {
      return arguments.length === 1 ?
        k(this) :
        this.updateIn([k], notSetValue, updater);
    };

    Map.prototype.updateIn = function(keyPath, notSetValue, updater) {
      if (!updater) {
        updater = notSetValue;
        notSetValue = undefined;
      }
      var updatedValue = updateInDeepMap(
        this,
        forceIterator(keyPath),
        notSetValue,
        updater
      );
      return updatedValue === NOT_SET ? undefined : updatedValue;
    };

    Map.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._root = null;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyMap();
    };

    // @pragma Composition

    Map.prototype.merge = function(/*...iters*/) {
      return mergeIntoMapWith(this, undefined, arguments);
    };

    Map.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoMapWith(this, merger, iters);
    };

    Map.prototype.mergeIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);
      return this.updateIn(
        keyPath,
        emptyMap(),
        function(m ) {return typeof m.merge === 'function' ?
          m.merge.apply(m, iters) :
          iters[iters.length - 1]}
      );
    };

    Map.prototype.mergeDeep = function(/*...iters*/) {
      return mergeIntoMapWith(this, deepMerger, arguments);
    };

    Map.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoMapWith(this, deepMergerWith(merger), iters);
    };

    Map.prototype.mergeDeepIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);
      return this.updateIn(
        keyPath,
        emptyMap(),
        function(m ) {return typeof m.mergeDeep === 'function' ?
          m.mergeDeep.apply(m, iters) :
          iters[iters.length - 1]}
      );
    };

    Map.prototype.sort = function(comparator) {
      // Late binding
      return OrderedMap(sortFactory(this, comparator));
    };

    Map.prototype.sortBy = function(mapper, comparator) {
      // Late binding
      return OrderedMap(sortFactory(this, comparator, mapper));
    };

    // @pragma Mutability

    Map.prototype.withMutations = function(fn) {
      var mutable = this.asMutable();
      fn(mutable);
      return mutable.wasAltered() ? mutable.__ensureOwner(this.__ownerID) : this;
    };

    Map.prototype.asMutable = function() {
      return this.__ownerID ? this : this.__ensureOwner(new OwnerID());
    };

    Map.prototype.asImmutable = function() {
      return this.__ensureOwner();
    };

    Map.prototype.wasAltered = function() {
      return this.__altered;
    };

    Map.prototype.__iterator = function(type, reverse) {
      return new MapIterator(this, type, reverse);
    };

    Map.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      var iterations = 0;
      this._root && this._root.iterate(function(entry ) {
        iterations++;
        return fn(entry[1], entry[0], this$0);
      }, reverse);
      return iterations;
    };

    Map.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        this.__ownerID = ownerID;
        this.__altered = false;
        return this;
      }
      return makeMap(this.size, this._root, ownerID, this.__hash);
    };


  function isMap(maybeMap) {
    return !!(maybeMap && maybeMap[IS_MAP_SENTINEL]);
  }

  Map.isMap = isMap;

  var IS_MAP_SENTINEL = '@@__IMMUTABLE_MAP__@@';

  var MapPrototype = Map.prototype;
  MapPrototype[IS_MAP_SENTINEL] = true;
  MapPrototype[DELETE] = MapPrototype.remove;
  MapPrototype.removeIn = MapPrototype.deleteIn;


  // #pragma Trie Nodes



    function ArrayMapNode(ownerID, entries) {
      this.ownerID = ownerID;
      this.entries = entries;
    }

    ArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      var entries = this.entries;
      for (var ii = 0, len = entries.length; ii < len; ii++) {
        if (is(key, entries[ii][0])) {
          return entries[ii][1];
        }
      }
      return notSetValue;
    };

    ArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      var removed = value === NOT_SET;

      var entries = this.entries;
      var idx = 0;
      for (var len = entries.length; idx < len; idx++) {
        if (is(key, entries[idx][0])) {
          break;
        }
      }
      var exists = idx < len;

      if (exists ? entries[idx][1] === value : removed) {
        return this;
      }

      SetRef(didAlter);
      (removed || !exists) && SetRef(didChangeSize);

      if (removed && entries.length === 1) {
        return; // undefined
      }

      if (!exists && !removed && entries.length >= MAX_ARRAY_MAP_SIZE) {
        return createNodes(ownerID, entries, key, value);
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newEntries = isEditable ? entries : arrCopy(entries);

      if (exists) {
        if (removed) {
          idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());
        } else {
          newEntries[idx] = [key, value];
        }
      } else {
        newEntries.push([key, value]);
      }

      if (isEditable) {
        this.entries = newEntries;
        return this;
      }

      return new ArrayMapNode(ownerID, newEntries);
    };




    function BitmapIndexedNode(ownerID, bitmap, nodes) {
      this.ownerID = ownerID;
      this.bitmap = bitmap;
      this.nodes = nodes;
    }

    BitmapIndexedNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var bit = (1 << ((shift === 0 ? keyHash : keyHash >>> shift) & MASK));
      var bitmap = this.bitmap;
      return (bitmap & bit) === 0 ? notSetValue :
        this.nodes[popCount(bitmap & (bit - 1))].get(shift + SHIFT, keyHash, key, notSetValue);
    };

    BitmapIndexedNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var keyHashFrag = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
      var bit = 1 << keyHashFrag;
      var bitmap = this.bitmap;
      var exists = (bitmap & bit) !== 0;

      if (!exists && value === NOT_SET) {
        return this;
      }

      var idx = popCount(bitmap & (bit - 1));
      var nodes = this.nodes;
      var node = exists ? nodes[idx] : undefined;
      var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);

      if (newNode === node) {
        return this;
      }

      if (!exists && newNode && nodes.length >= MAX_BITMAP_INDEXED_SIZE) {
        return expandNodes(ownerID, nodes, bitmap, keyHashFrag, newNode);
      }

      if (exists && !newNode && nodes.length === 2 && isLeafNode(nodes[idx ^ 1])) {
        return nodes[idx ^ 1];
      }

      if (exists && newNode && nodes.length === 1 && isLeafNode(newNode)) {
        return newNode;
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newBitmap = exists ? newNode ? bitmap : bitmap ^ bit : bitmap | bit;
      var newNodes = exists ? newNode ?
        setIn(nodes, idx, newNode, isEditable) :
        spliceOut(nodes, idx, isEditable) :
        spliceIn(nodes, idx, newNode, isEditable);

      if (isEditable) {
        this.bitmap = newBitmap;
        this.nodes = newNodes;
        return this;
      }

      return new BitmapIndexedNode(ownerID, newBitmap, newNodes);
    };




    function HashArrayMapNode(ownerID, count, nodes) {
      this.ownerID = ownerID;
      this.count = count;
      this.nodes = nodes;
    }

    HashArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
      var node = this.nodes[idx];
      return node ? node.get(shift + SHIFT, keyHash, key, notSetValue) : notSetValue;
    };

    HashArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
      var removed = value === NOT_SET;
      var nodes = this.nodes;
      var node = nodes[idx];

      if (removed && !node) {
        return this;
      }

      var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);
      if (newNode === node) {
        return this;
      }

      var newCount = this.count;
      if (!node) {
        newCount++;
      } else if (!newNode) {
        newCount--;
        if (newCount < MIN_HASH_ARRAY_MAP_SIZE) {
          return packNodes(ownerID, nodes, newCount, idx);
        }
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newNodes = setIn(nodes, idx, newNode, isEditable);

      if (isEditable) {
        this.count = newCount;
        this.nodes = newNodes;
        return this;
      }

      return new HashArrayMapNode(ownerID, newCount, newNodes);
    };




    function HashCollisionNode(ownerID, keyHash, entries) {
      this.ownerID = ownerID;
      this.keyHash = keyHash;
      this.entries = entries;
    }

    HashCollisionNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      var entries = this.entries;
      for (var ii = 0, len = entries.length; ii < len; ii++) {
        if (is(key, entries[ii][0])) {
          return entries[ii][1];
        }
      }
      return notSetValue;
    };

    HashCollisionNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }

      var removed = value === NOT_SET;

      if (keyHash !== this.keyHash) {
        if (removed) {
          return this;
        }
        SetRef(didAlter);
        SetRef(didChangeSize);
        return mergeIntoNode(this, ownerID, shift, keyHash, [key, value]);
      }

      var entries = this.entries;
      var idx = 0;
      for (var len = entries.length; idx < len; idx++) {
        if (is(key, entries[idx][0])) {
          break;
        }
      }
      var exists = idx < len;

      if (exists ? entries[idx][1] === value : removed) {
        return this;
      }

      SetRef(didAlter);
      (removed || !exists) && SetRef(didChangeSize);

      if (removed && len === 2) {
        return new ValueNode(ownerID, this.keyHash, entries[idx ^ 1]);
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newEntries = isEditable ? entries : arrCopy(entries);

      if (exists) {
        if (removed) {
          idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());
        } else {
          newEntries[idx] = [key, value];
        }
      } else {
        newEntries.push([key, value]);
      }

      if (isEditable) {
        this.entries = newEntries;
        return this;
      }

      return new HashCollisionNode(ownerID, this.keyHash, newEntries);
    };




    function ValueNode(ownerID, keyHash, entry) {
      this.ownerID = ownerID;
      this.keyHash = keyHash;
      this.entry = entry;
    }

    ValueNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      return is(key, this.entry[0]) ? this.entry[1] : notSetValue;
    };

    ValueNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      var removed = value === NOT_SET;
      var keyMatch = is(key, this.entry[0]);
      if (keyMatch ? value === this.entry[1] : removed) {
        return this;
      }

      SetRef(didAlter);

      if (removed) {
        SetRef(didChangeSize);
        return; // undefined
      }

      if (keyMatch) {
        if (ownerID && ownerID === this.ownerID) {
          this.entry[1] = value;
          return this;
        }
        return new ValueNode(ownerID, this.keyHash, [key, value]);
      }

      SetRef(didChangeSize);
      return mergeIntoNode(this, ownerID, shift, hash(key), [key, value]);
    };



  // #pragma Iterators

  ArrayMapNode.prototype.iterate =
  HashCollisionNode.prototype.iterate = function (fn, reverse) {
    var entries = this.entries;
    for (var ii = 0, maxIndex = entries.length - 1; ii <= maxIndex; ii++) {
      if (fn(entries[reverse ? maxIndex - ii : ii]) === false) {
        return false;
      }
    }
  };

  BitmapIndexedNode.prototype.iterate =
  HashArrayMapNode.prototype.iterate = function (fn, reverse) {
    var nodes = this.nodes;
    for (var ii = 0, maxIndex = nodes.length - 1; ii <= maxIndex; ii++) {
      var node = nodes[reverse ? maxIndex - ii : ii];
      if (node && node.iterate(fn, reverse) === false) {
        return false;
      }
    }
  };

  ValueNode.prototype.iterate = function (fn, reverse) {
    return fn(this.entry);
  };

  createClass(MapIterator, Iterator);

    function MapIterator(map, type, reverse) {
      this._type = type;
      this._reverse = reverse;
      this._stack = map._root && mapIteratorFrame(map._root);
    }

    MapIterator.prototype.next = function() {
      var type = this._type;
      var stack = this._stack;
      while (stack) {
        var node = stack.node;
        var index = stack.index++;
        var maxIndex;
        if (node.entry) {
          if (index === 0) {
            return mapIteratorValue(type, node.entry);
          }
        } else if (node.entries) {
          maxIndex = node.entries.length - 1;
          if (index <= maxIndex) {
            return mapIteratorValue(type, node.entries[this._reverse ? maxIndex - index : index]);
          }
        } else {
          maxIndex = node.nodes.length - 1;
          if (index <= maxIndex) {
            var subNode = node.nodes[this._reverse ? maxIndex - index : index];
            if (subNode) {
              if (subNode.entry) {
                return mapIteratorValue(type, subNode.entry);
              }
              stack = this._stack = mapIteratorFrame(subNode, stack);
            }
            continue;
          }
        }
        stack = this._stack = this._stack.__prev;
      }
      return iteratorDone();
    };


  function mapIteratorValue(type, entry) {
    return iteratorValue(type, entry[0], entry[1]);
  }

  function mapIteratorFrame(node, prev) {
    return {
      node: node,
      index: 0,
      __prev: prev
    };
  }

  function makeMap(size, root, ownerID, hash) {
    var map = Object.create(MapPrototype);
    map.size = size;
    map._root = root;
    map.__ownerID = ownerID;
    map.__hash = hash;
    map.__altered = false;
    return map;
  }

  var EMPTY_MAP;
  function emptyMap() {
    return EMPTY_MAP || (EMPTY_MAP = makeMap(0));
  }

  function updateMap(map, k, v) {
    var newRoot;
    var newSize;
    if (!map._root) {
      if (v === NOT_SET) {
        return map;
      }
      newSize = 1;
      newRoot = new ArrayMapNode(map.__ownerID, [[k, v]]);
    } else {
      var didChangeSize = MakeRef(CHANGE_LENGTH);
      var didAlter = MakeRef(DID_ALTER);
      newRoot = updateNode(map._root, map.__ownerID, 0, undefined, k, v, didChangeSize, didAlter);
      if (!didAlter.value) {
        return map;
      }
      newSize = map.size + (didChangeSize.value ? v === NOT_SET ? -1 : 1 : 0);
    }
    if (map.__ownerID) {
      map.size = newSize;
      map._root = newRoot;
      map.__hash = undefined;
      map.__altered = true;
      return map;
    }
    return newRoot ? makeMap(newSize, newRoot) : emptyMap();
  }

  function updateNode(node, ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
    if (!node) {
      if (value === NOT_SET) {
        return node;
      }
      SetRef(didAlter);
      SetRef(didChangeSize);
      return new ValueNode(ownerID, keyHash, [key, value]);
    }
    return node.update(ownerID, shift, keyHash, key, value, didChangeSize, didAlter);
  }

  function isLeafNode(node) {
    return node.constructor === ValueNode || node.constructor === HashCollisionNode;
  }

  function mergeIntoNode(node, ownerID, shift, keyHash, entry) {
    if (node.keyHash === keyHash) {
      return new HashCollisionNode(ownerID, keyHash, [node.entry, entry]);
    }

    var idx1 = (shift === 0 ? node.keyHash : node.keyHash >>> shift) & MASK;
    var idx2 = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;

    var newNode;
    var nodes = idx1 === idx2 ?
      [mergeIntoNode(node, ownerID, shift + SHIFT, keyHash, entry)] :
      ((newNode = new ValueNode(ownerID, keyHash, entry)), idx1 < idx2 ? [node, newNode] : [newNode, node]);

    return new BitmapIndexedNode(ownerID, (1 << idx1) | (1 << idx2), nodes);
  }

  function createNodes(ownerID, entries, key, value) {
    if (!ownerID) {
      ownerID = new OwnerID();
    }
    var node = new ValueNode(ownerID, hash(key), [key, value]);
    for (var ii = 0; ii < entries.length; ii++) {
      var entry = entries[ii];
      node = node.update(ownerID, 0, undefined, entry[0], entry[1]);
    }
    return node;
  }

  function packNodes(ownerID, nodes, count, excluding) {
    var bitmap = 0;
    var packedII = 0;
    var packedNodes = new Array(count);
    for (var ii = 0, bit = 1, len = nodes.length; ii < len; ii++, bit <<= 1) {
      var node = nodes[ii];
      if (node !== undefined && ii !== excluding) {
        bitmap |= bit;
        packedNodes[packedII++] = node;
      }
    }
    return new BitmapIndexedNode(ownerID, bitmap, packedNodes);
  }

  function expandNodes(ownerID, nodes, bitmap, including, node) {
    var count = 0;
    var expandedNodes = new Array(SIZE);
    for (var ii = 0; bitmap !== 0; ii++, bitmap >>>= 1) {
      expandedNodes[ii] = bitmap & 1 ? nodes[count++] : undefined;
    }
    expandedNodes[including] = node;
    return new HashArrayMapNode(ownerID, count + 1, expandedNodes);
  }

  function mergeIntoMapWith(map, merger, iterables) {
    var iters = [];
    for (var ii = 0; ii < iterables.length; ii++) {
      var value = iterables[ii];
      var iter = KeyedIterable(value);
      if (!isIterable(value)) {
        iter = iter.map(function(v ) {return fromJS(v)});
      }
      iters.push(iter);
    }
    return mergeIntoCollectionWith(map, merger, iters);
  }

  function deepMerger(existing, value, key) {
    return existing && existing.mergeDeep && isIterable(value) ?
      existing.mergeDeep(value) :
      is(existing, value) ? existing : value;
  }

  function deepMergerWith(merger) {
    return function(existing, value, key)  {
      if (existing && existing.mergeDeepWith && isIterable(value)) {
        return existing.mergeDeepWith(merger, value);
      }
      var nextValue = merger(existing, value, key);
      return is(existing, nextValue) ? existing : nextValue;
    };
  }

  function mergeIntoCollectionWith(collection, merger, iters) {
    iters = iters.filter(function(x ) {return x.size !== 0});
    if (iters.length === 0) {
      return collection;
    }
    if (collection.size === 0 && !collection.__ownerID && iters.length === 1) {
      return collection.constructor(iters[0]);
    }
    return collection.withMutations(function(collection ) {
      var mergeIntoMap = merger ?
        function(value, key)  {
          collection.update(key, NOT_SET, function(existing )
            {return existing === NOT_SET ? value : merger(existing, value, key)}
          );
        } :
        function(value, key)  {
          collection.set(key, value);
        };
      for (var ii = 0; ii < iters.length; ii++) {
        iters[ii].forEach(mergeIntoMap);
      }
    });
  }

  function updateInDeepMap(existing, keyPathIter, notSetValue, updater) {
    var isNotSet = existing === NOT_SET;
    var step = keyPathIter.next();
    if (step.done) {
      var existingValue = isNotSet ? notSetValue : existing;
      var newValue = updater(existingValue);
      return newValue === existingValue ? existing : newValue;
    }
    invariant(
      isNotSet || (existing && existing.set),
      'invalid keyPath'
    );
    var key = step.value;
    var nextExisting = isNotSet ? NOT_SET : existing.get(key, NOT_SET);
    var nextUpdated = updateInDeepMap(
      nextExisting,
      keyPathIter,
      notSetValue,
      updater
    );
    return nextUpdated === nextExisting ? existing :
      nextUpdated === NOT_SET ? existing.remove(key) :
      (isNotSet ? emptyMap() : existing).set(key, nextUpdated);
  }

  function popCount(x) {
    x = x - ((x >> 1) & 0x55555555);
    x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
    x = (x + (x >> 4)) & 0x0f0f0f0f;
    x = x + (x >> 8);
    x = x + (x >> 16);
    return x & 0x7f;
  }

  function setIn(array, idx, val, canEdit) {
    var newArray = canEdit ? array : arrCopy(array);
    newArray[idx] = val;
    return newArray;
  }

  function spliceIn(array, idx, val, canEdit) {
    var newLen = array.length + 1;
    if (canEdit && idx + 1 === newLen) {
      array[idx] = val;
      return array;
    }
    var newArray = new Array(newLen);
    var after = 0;
    for (var ii = 0; ii < newLen; ii++) {
      if (ii === idx) {
        newArray[ii] = val;
        after = -1;
      } else {
        newArray[ii] = array[ii + after];
      }
    }
    return newArray;
  }

  function spliceOut(array, idx, canEdit) {
    var newLen = array.length - 1;
    if (canEdit && idx === newLen) {
      array.pop();
      return array;
    }
    var newArray = new Array(newLen);
    var after = 0;
    for (var ii = 0; ii < newLen; ii++) {
      if (ii === idx) {
        after = 1;
      }
      newArray[ii] = array[ii + after];
    }
    return newArray;
  }

  var MAX_ARRAY_MAP_SIZE = SIZE / 4;
  var MAX_BITMAP_INDEXED_SIZE = SIZE / 2;
  var MIN_HASH_ARRAY_MAP_SIZE = SIZE / 4;

  createClass(List, IndexedCollection);

    // @pragma Construction

    function List(value) {
      var empty = emptyList();
      if (value === null || value === undefined) {
        return empty;
      }
      if (isList(value)) {
        return value;
      }
      var iter = IndexedIterable(value);
      var size = iter.size;
      if (size === 0) {
        return empty;
      }
      assertNotInfinite(size);
      if (size > 0 && size < SIZE) {
        return makeList(0, size, SHIFT, null, new VNode(iter.toArray()));
      }
      return empty.withMutations(function(list ) {
        list.setSize(size);
        iter.forEach(function(v, i)  {return list.set(i, v)});
      });
    }

    List.of = function(/*...values*/) {
      return this(arguments);
    };

    List.prototype.toString = function() {
      return this.__toString('List [', ']');
    };

    // @pragma Access

    List.prototype.get = function(index, notSetValue) {
      index = wrapIndex(this, index);
      if (index >= 0 && index < this.size) {
        index += this._origin;
        var node = listNodeFor(this, index);
        return node && node.array[index & MASK];
      }
      return notSetValue;
    };

    // @pragma Modification

    List.prototype.set = function(index, value) {
      return updateList(this, index, value);
    };

    List.prototype.remove = function(index) {
      return !this.has(index) ? this :
        index === 0 ? this.shift() :
        index === this.size - 1 ? this.pop() :
        this.splice(index, 1);
    };

    List.prototype.insert = function(index, value) {
      return this.splice(index, 0, value);
    };

    List.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = this._origin = this._capacity = 0;
        this._level = SHIFT;
        this._root = this._tail = null;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyList();
    };

    List.prototype.push = function(/*...values*/) {
      var values = arguments;
      var oldSize = this.size;
      return this.withMutations(function(list ) {
        setListBounds(list, 0, oldSize + values.length);
        for (var ii = 0; ii < values.length; ii++) {
          list.set(oldSize + ii, values[ii]);
        }
      });
    };

    List.prototype.pop = function() {
      return setListBounds(this, 0, -1);
    };

    List.prototype.unshift = function(/*...values*/) {
      var values = arguments;
      return this.withMutations(function(list ) {
        setListBounds(list, -values.length);
        for (var ii = 0; ii < values.length; ii++) {
          list.set(ii, values[ii]);
        }
      });
    };

    List.prototype.shift = function() {
      return setListBounds(this, 1);
    };

    // @pragma Composition

    List.prototype.merge = function(/*...iters*/) {
      return mergeIntoListWith(this, undefined, arguments);
    };

    List.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoListWith(this, merger, iters);
    };

    List.prototype.mergeDeep = function(/*...iters*/) {
      return mergeIntoListWith(this, deepMerger, arguments);
    };

    List.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoListWith(this, deepMergerWith(merger), iters);
    };

    List.prototype.setSize = function(size) {
      return setListBounds(this, 0, size);
    };

    // @pragma Iteration

    List.prototype.slice = function(begin, end) {
      var size = this.size;
      if (wholeSlice(begin, end, size)) {
        return this;
      }
      return setListBounds(
        this,
        resolveBegin(begin, size),
        resolveEnd(end, size)
      );
    };

    List.prototype.__iterator = function(type, reverse) {
      var index = 0;
      var values = iterateList(this, reverse);
      return new Iterator(function()  {
        var value = values();
        return value === DONE ?
          iteratorDone() :
          iteratorValue(type, index++, value);
      });
    };

    List.prototype.__iterate = function(fn, reverse) {
      var index = 0;
      var values = iterateList(this, reverse);
      var value;
      while ((value = values()) !== DONE) {
        if (fn(value, index++, this) === false) {
          break;
        }
      }
      return index;
    };

    List.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        this.__ownerID = ownerID;
        return this;
      }
      return makeList(this._origin, this._capacity, this._level, this._root, this._tail, ownerID, this.__hash);
    };


  function isList(maybeList) {
    return !!(maybeList && maybeList[IS_LIST_SENTINEL]);
  }

  List.isList = isList;

  var IS_LIST_SENTINEL = '@@__IMMUTABLE_LIST__@@';

  var ListPrototype = List.prototype;
  ListPrototype[IS_LIST_SENTINEL] = true;
  ListPrototype[DELETE] = ListPrototype.remove;
  ListPrototype.setIn = MapPrototype.setIn;
  ListPrototype.deleteIn =
  ListPrototype.removeIn = MapPrototype.removeIn;
  ListPrototype.update = MapPrototype.update;
  ListPrototype.updateIn = MapPrototype.updateIn;
  ListPrototype.mergeIn = MapPrototype.mergeIn;
  ListPrototype.mergeDeepIn = MapPrototype.mergeDeepIn;
  ListPrototype.withMutations = MapPrototype.withMutations;
  ListPrototype.asMutable = MapPrototype.asMutable;
  ListPrototype.asImmutable = MapPrototype.asImmutable;
  ListPrototype.wasAltered = MapPrototype.wasAltered;



    function VNode(array, ownerID) {
      this.array = array;
      this.ownerID = ownerID;
    }

    // TODO: seems like these methods are very similar

    VNode.prototype.removeBefore = function(ownerID, level, index) {
      if (index === level ? 1 << level :  this.array.length === 0) {
        return this;
      }
      var originIndex = (index >>> level) & MASK;
      if (originIndex >= this.array.length) {
        return new VNode([], ownerID);
      }
      var removingFirst = originIndex === 0;
      var newChild;
      if (level > 0) {
        var oldChild = this.array[originIndex];
        newChild = oldChild && oldChild.removeBefore(ownerID, level - SHIFT, index);
        if (newChild === oldChild && removingFirst) {
          return this;
        }
      }
      if (removingFirst && !newChild) {
        return this;
      }
      var editable = editableVNode(this, ownerID);
      if (!removingFirst) {
        for (var ii = 0; ii < originIndex; ii++) {
          editable.array[ii] = undefined;
        }
      }
      if (newChild) {
        editable.array[originIndex] = newChild;
      }
      return editable;
    };

    VNode.prototype.removeAfter = function(ownerID, level, index) {
      if (index === (level ? 1 << level : 0) || this.array.length === 0) {
        return this;
      }
      var sizeIndex = ((index - 1) >>> level) & MASK;
      if (sizeIndex >= this.array.length) {
        return this;
      }

      var newChild;
      if (level > 0) {
        var oldChild = this.array[sizeIndex];
        newChild = oldChild && oldChild.removeAfter(ownerID, level - SHIFT, index);
        if (newChild === oldChild && sizeIndex === this.array.length - 1) {
          return this;
        }
      }

      var editable = editableVNode(this, ownerID);
      editable.array.splice(sizeIndex + 1);
      if (newChild) {
        editable.array[sizeIndex] = newChild;
      }
      return editable;
    };



  var DONE = {};

  function iterateList(list, reverse) {
    var left = list._origin;
    var right = list._capacity;
    var tailPos = getTailOffset(right);
    var tail = list._tail;

    return iterateNodeOrLeaf(list._root, list._level, 0);

    function iterateNodeOrLeaf(node, level, offset) {
      return level === 0 ?
        iterateLeaf(node, offset) :
        iterateNode(node, level, offset);
    }

    function iterateLeaf(node, offset) {
      var array = offset === tailPos ? tail && tail.array : node && node.array;
      var from = offset > left ? 0 : left - offset;
      var to = right - offset;
      if (to > SIZE) {
        to = SIZE;
      }
      return function()  {
        if (from === to) {
          return DONE;
        }
        var idx = reverse ? --to : from++;
        return array && array[idx];
      };
    }

    function iterateNode(node, level, offset) {
      var values;
      var array = node && node.array;
      var from = offset > left ? 0 : (left - offset) >> level;
      var to = ((right - offset) >> level) + 1;
      if (to > SIZE) {
        to = SIZE;
      }
      return function()  {
        do {
          if (values) {
            var value = values();
            if (value !== DONE) {
              return value;
            }
            values = null;
          }
          if (from === to) {
            return DONE;
          }
          var idx = reverse ? --to : from++;
          values = iterateNodeOrLeaf(
            array && array[idx], level - SHIFT, offset + (idx << level)
          );
        } while (true);
      };
    }
  }

  function makeList(origin, capacity, level, root, tail, ownerID, hash) {
    var list = Object.create(ListPrototype);
    list.size = capacity - origin;
    list._origin = origin;
    list._capacity = capacity;
    list._level = level;
    list._root = root;
    list._tail = tail;
    list.__ownerID = ownerID;
    list.__hash = hash;
    list.__altered = false;
    return list;
  }

  var EMPTY_LIST;
  function emptyList() {
    return EMPTY_LIST || (EMPTY_LIST = makeList(0, 0, SHIFT));
  }

  function updateList(list, index, value) {
    index = wrapIndex(list, index);

    if (index !== index) {
      return list;
    }

    if (index >= list.size || index < 0) {
      return list.withMutations(function(list ) {
        index < 0 ?
          setListBounds(list, index).set(0, value) :
          setListBounds(list, 0, index + 1).set(index, value);
      });
    }

    index += list._origin;

    var newTail = list._tail;
    var newRoot = list._root;
    var didAlter = MakeRef(DID_ALTER);
    if (index >= getTailOffset(list._capacity)) {
      newTail = updateVNode(newTail, list.__ownerID, 0, index, value, didAlter);
    } else {
      newRoot = updateVNode(newRoot, list.__ownerID, list._level, index, value, didAlter);
    }

    if (!didAlter.value) {
      return list;
    }

    if (list.__ownerID) {
      list._root = newRoot;
      list._tail = newTail;
      list.__hash = undefined;
      list.__altered = true;
      return list;
    }
    return makeList(list._origin, list._capacity, list._level, newRoot, newTail);
  }

  function updateVNode(node, ownerID, level, index, value, didAlter) {
    var idx = (index >>> level) & MASK;
    var nodeHas = node && idx < node.array.length;
    if (!nodeHas && value === undefined) {
      return node;
    }

    var newNode;

    if (level > 0) {
      var lowerNode = node && node.array[idx];
      var newLowerNode = updateVNode(lowerNode, ownerID, level - SHIFT, index, value, didAlter);
      if (newLowerNode === lowerNode) {
        return node;
      }
      newNode = editableVNode(node, ownerID);
      newNode.array[idx] = newLowerNode;
      return newNode;
    }

    if (nodeHas && node.array[idx] === value) {
      return node;
    }

    SetRef(didAlter);

    newNode = editableVNode(node, ownerID);
    if (value === undefined && idx === newNode.array.length - 1) {
      newNode.array.pop();
    } else {
      newNode.array[idx] = value;
    }
    return newNode;
  }

  function editableVNode(node, ownerID) {
    if (ownerID && node && ownerID === node.ownerID) {
      return node;
    }
    return new VNode(node ? node.array.slice() : [], ownerID);
  }

  function listNodeFor(list, rawIndex) {
    if (rawIndex >= getTailOffset(list._capacity)) {
      return list._tail;
    }
    if (rawIndex < 1 << (list._level + SHIFT)) {
      var node = list._root;
      var level = list._level;
      while (node && level > 0) {
        node = node.array[(rawIndex >>> level) & MASK];
        level -= SHIFT;
      }
      return node;
    }
  }

  function setListBounds(list, begin, end) {
    // Sanitize begin & end using this shorthand for ToInt32(argument)
    // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
    if (begin !== undefined) {
      begin = begin | 0;
    }
    if (end !== undefined) {
      end = end | 0;
    }
    var owner = list.__ownerID || new OwnerID();
    var oldOrigin = list._origin;
    var oldCapacity = list._capacity;
    var newOrigin = oldOrigin + begin;
    var newCapacity = end === undefined ? oldCapacity : end < 0 ? oldCapacity + end : oldOrigin + end;
    if (newOrigin === oldOrigin && newCapacity === oldCapacity) {
      return list;
    }

    // If it's going to end after it starts, it's empty.
    if (newOrigin >= newCapacity) {
      return list.clear();
    }

    var newLevel = list._level;
    var newRoot = list._root;

    // New origin might need creating a higher root.
    var offsetShift = 0;
    while (newOrigin + offsetShift < 0) {
      newRoot = new VNode(newRoot && newRoot.array.length ? [undefined, newRoot] : [], owner);
      newLevel += SHIFT;
      offsetShift += 1 << newLevel;
    }
    if (offsetShift) {
      newOrigin += offsetShift;
      oldOrigin += offsetShift;
      newCapacity += offsetShift;
      oldCapacity += offsetShift;
    }

    var oldTailOffset = getTailOffset(oldCapacity);
    var newTailOffset = getTailOffset(newCapacity);

    // New size might need creating a higher root.
    while (newTailOffset >= 1 << (newLevel + SHIFT)) {
      newRoot = new VNode(newRoot && newRoot.array.length ? [newRoot] : [], owner);
      newLevel += SHIFT;
    }

    // Locate or create the new tail.
    var oldTail = list._tail;
    var newTail = newTailOffset < oldTailOffset ?
      listNodeFor(list, newCapacity - 1) :
      newTailOffset > oldTailOffset ? new VNode([], owner) : oldTail;

    // Merge Tail into tree.
    if (oldTail && newTailOffset > oldTailOffset && newOrigin < oldCapacity && oldTail.array.length) {
      newRoot = editableVNode(newRoot, owner);
      var node = newRoot;
      for (var level = newLevel; level > SHIFT; level -= SHIFT) {
        var idx = (oldTailOffset >>> level) & MASK;
        node = node.array[idx] = editableVNode(node.array[idx], owner);
      }
      node.array[(oldTailOffset >>> SHIFT) & MASK] = oldTail;
    }

    // If the size has been reduced, there's a chance the tail needs to be trimmed.
    if (newCapacity < oldCapacity) {
      newTail = newTail && newTail.removeAfter(owner, 0, newCapacity);
    }

    // If the new origin is within the tail, then we do not need a root.
    if (newOrigin >= newTailOffset) {
      newOrigin -= newTailOffset;
      newCapacity -= newTailOffset;
      newLevel = SHIFT;
      newRoot = null;
      newTail = newTail && newTail.removeBefore(owner, 0, newOrigin);

    // Otherwise, if the root has been trimmed, garbage collect.
    } else if (newOrigin > oldOrigin || newTailOffset < oldTailOffset) {
      offsetShift = 0;

      // Identify the new top root node of the subtree of the old root.
      while (newRoot) {
        var beginIndex = (newOrigin >>> newLevel) & MASK;
        if (beginIndex !== (newTailOffset >>> newLevel) & MASK) {
          break;
        }
        if (beginIndex) {
          offsetShift += (1 << newLevel) * beginIndex;
        }
        newLevel -= SHIFT;
        newRoot = newRoot.array[beginIndex];
      }

      // Trim the new sides of the new root.
      if (newRoot && newOrigin > oldOrigin) {
        newRoot = newRoot.removeBefore(owner, newLevel, newOrigin - offsetShift);
      }
      if (newRoot && newTailOffset < oldTailOffset) {
        newRoot = newRoot.removeAfter(owner, newLevel, newTailOffset - offsetShift);
      }
      if (offsetShift) {
        newOrigin -= offsetShift;
        newCapacity -= offsetShift;
      }
    }

    if (list.__ownerID) {
      list.size = newCapacity - newOrigin;
      list._origin = newOrigin;
      list._capacity = newCapacity;
      list._level = newLevel;
      list._root = newRoot;
      list._tail = newTail;
      list.__hash = undefined;
      list.__altered = true;
      return list;
    }
    return makeList(newOrigin, newCapacity, newLevel, newRoot, newTail);
  }

  function mergeIntoListWith(list, merger, iterables) {
    var iters = [];
    var maxSize = 0;
    for (var ii = 0; ii < iterables.length; ii++) {
      var value = iterables[ii];
      var iter = IndexedIterable(value);
      if (iter.size > maxSize) {
        maxSize = iter.size;
      }
      if (!isIterable(value)) {
        iter = iter.map(function(v ) {return fromJS(v)});
      }
      iters.push(iter);
    }
    if (maxSize > list.size) {
      list = list.setSize(maxSize);
    }
    return mergeIntoCollectionWith(list, merger, iters);
  }

  function getTailOffset(size) {
    return size < SIZE ? 0 : (((size - 1) >>> SHIFT) << SHIFT);
  }

  createClass(OrderedMap, Map);

    // @pragma Construction

    function OrderedMap(value) {
      return value === null || value === undefined ? emptyOrderedMap() :
        isOrderedMap(value) ? value :
        emptyOrderedMap().withMutations(function(map ) {
          var iter = KeyedIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v, k)  {return map.set(k, v)});
        });
    }

    OrderedMap.of = function(/*...values*/) {
      return this(arguments);
    };

    OrderedMap.prototype.toString = function() {
      return this.__toString('OrderedMap {', '}');
    };

    // @pragma Access

    OrderedMap.prototype.get = function(k, notSetValue) {
      var index = this._map.get(k);
      return index !== undefined ? this._list.get(index)[1] : notSetValue;
    };

    // @pragma Modification

    OrderedMap.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._map.clear();
        this._list.clear();
        return this;
      }
      return emptyOrderedMap();
    };

    OrderedMap.prototype.set = function(k, v) {
      return updateOrderedMap(this, k, v);
    };

    OrderedMap.prototype.remove = function(k) {
      return updateOrderedMap(this, k, NOT_SET);
    };

    OrderedMap.prototype.wasAltered = function() {
      return this._map.wasAltered() || this._list.wasAltered();
    };

    OrderedMap.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._list.__iterate(
        function(entry ) {return entry && fn(entry[1], entry[0], this$0)},
        reverse
      );
    };

    OrderedMap.prototype.__iterator = function(type, reverse) {
      return this._list.fromEntrySeq().__iterator(type, reverse);
    };

    OrderedMap.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      var newMap = this._map.__ensureOwner(ownerID);
      var newList = this._list.__ensureOwner(ownerID);
      if (!ownerID) {
        this.__ownerID = ownerID;
        this._map = newMap;
        this._list = newList;
        return this;
      }
      return makeOrderedMap(newMap, newList, ownerID, this.__hash);
    };


  function isOrderedMap(maybeOrderedMap) {
    return isMap(maybeOrderedMap) && isOrdered(maybeOrderedMap);
  }

  OrderedMap.isOrderedMap = isOrderedMap;

  OrderedMap.prototype[IS_ORDERED_SENTINEL] = true;
  OrderedMap.prototype[DELETE] = OrderedMap.prototype.remove;



  function makeOrderedMap(map, list, ownerID, hash) {
    var omap = Object.create(OrderedMap.prototype);
    omap.size = map ? map.size : 0;
    omap._map = map;
    omap._list = list;
    omap.__ownerID = ownerID;
    omap.__hash = hash;
    return omap;
  }

  var EMPTY_ORDERED_MAP;
  function emptyOrderedMap() {
    return EMPTY_ORDERED_MAP || (EMPTY_ORDERED_MAP = makeOrderedMap(emptyMap(), emptyList()));
  }

  function updateOrderedMap(omap, k, v) {
    var map = omap._map;
    var list = omap._list;
    var i = map.get(k);
    var has = i !== undefined;
    var newMap;
    var newList;
    if (v === NOT_SET) { // removed
      if (!has) {
        return omap;
      }
      if (list.size >= SIZE && list.size >= map.size * 2) {
        newList = list.filter(function(entry, idx)  {return entry !== undefined && i !== idx});
        newMap = newList.toKeyedSeq().map(function(entry ) {return entry[0]}).flip().toMap();
        if (omap.__ownerID) {
          newMap.__ownerID = newList.__ownerID = omap.__ownerID;
        }
      } else {
        newMap = map.remove(k);
        newList = i === list.size - 1 ? list.pop() : list.set(i, undefined);
      }
    } else {
      if (has) {
        if (v === list.get(i)[1]) {
          return omap;
        }
        newMap = map;
        newList = list.set(i, [k, v]);
      } else {
        newMap = map.set(k, list.size);
        newList = list.set(list.size, [k, v]);
      }
    }
    if (omap.__ownerID) {
      omap.size = newMap.size;
      omap._map = newMap;
      omap._list = newList;
      omap.__hash = undefined;
      return omap;
    }
    return makeOrderedMap(newMap, newList);
  }

  createClass(ToKeyedSequence, KeyedSeq);
    function ToKeyedSequence(indexed, useKeys) {
      this._iter = indexed;
      this._useKeys = useKeys;
      this.size = indexed.size;
    }

    ToKeyedSequence.prototype.get = function(key, notSetValue) {
      return this._iter.get(key, notSetValue);
    };

    ToKeyedSequence.prototype.has = function(key) {
      return this._iter.has(key);
    };

    ToKeyedSequence.prototype.valueSeq = function() {
      return this._iter.valueSeq();
    };

    ToKeyedSequence.prototype.reverse = function() {var this$0 = this;
      var reversedSequence = reverseFactory(this, true);
      if (!this._useKeys) {
        reversedSequence.valueSeq = function()  {return this$0._iter.toSeq().reverse()};
      }
      return reversedSequence;
    };

    ToKeyedSequence.prototype.map = function(mapper, context) {var this$0 = this;
      var mappedSequence = mapFactory(this, mapper, context);
      if (!this._useKeys) {
        mappedSequence.valueSeq = function()  {return this$0._iter.toSeq().map(mapper, context)};
      }
      return mappedSequence;
    };

    ToKeyedSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      var ii;
      return this._iter.__iterate(
        this._useKeys ?
          function(v, k)  {return fn(v, k, this$0)} :
          ((ii = reverse ? resolveSize(this) : 0),
            function(v ) {return fn(v, reverse ? --ii : ii++, this$0)}),
        reverse
      );
    };

    ToKeyedSequence.prototype.__iterator = function(type, reverse) {
      if (this._useKeys) {
        return this._iter.__iterator(type, reverse);
      }
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      var ii = reverse ? resolveSize(this) : 0;
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step :
          iteratorValue(type, reverse ? --ii : ii++, step.value, step);
      });
    };

  ToKeyedSequence.prototype[IS_ORDERED_SENTINEL] = true;


  createClass(ToIndexedSequence, IndexedSeq);
    function ToIndexedSequence(iter) {
      this._iter = iter;
      this.size = iter.size;
    }

    ToIndexedSequence.prototype.includes = function(value) {
      return this._iter.includes(value);
    };

    ToIndexedSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      var iterations = 0;
      return this._iter.__iterate(function(v ) {return fn(v, iterations++, this$0)}, reverse);
    };

    ToIndexedSequence.prototype.__iterator = function(type, reverse) {
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      var iterations = 0;
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step :
          iteratorValue(type, iterations++, step.value, step)
      });
    };



  createClass(ToSetSequence, SetSeq);
    function ToSetSequence(iter) {
      this._iter = iter;
      this.size = iter.size;
    }

    ToSetSequence.prototype.has = function(key) {
      return this._iter.includes(key);
    };

    ToSetSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._iter.__iterate(function(v ) {return fn(v, v, this$0)}, reverse);
    };

    ToSetSequence.prototype.__iterator = function(type, reverse) {
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step :
          iteratorValue(type, step.value, step.value, step);
      });
    };



  createClass(FromEntriesSequence, KeyedSeq);
    function FromEntriesSequence(entries) {
      this._iter = entries;
      this.size = entries.size;
    }

    FromEntriesSequence.prototype.entrySeq = function() {
      return this._iter.toSeq();
    };

    FromEntriesSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._iter.__iterate(function(entry ) {
        // Check if entry exists first so array access doesn't throw for holes
        // in the parent iteration.
        if (entry) {
          validateEntry(entry);
          var indexedIterable = isIterable(entry);
          return fn(
            indexedIterable ? entry.get(1) : entry[1],
            indexedIterable ? entry.get(0) : entry[0],
            this$0
          );
        }
      }, reverse);
    };

    FromEntriesSequence.prototype.__iterator = function(type, reverse) {
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      return new Iterator(function()  {
        while (true) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          var entry = step.value;
          // Check if entry exists first so array access doesn't throw for holes
          // in the parent iteration.
          if (entry) {
            validateEntry(entry);
            var indexedIterable = isIterable(entry);
            return iteratorValue(
              type,
              indexedIterable ? entry.get(0) : entry[0],
              indexedIterable ? entry.get(1) : entry[1],
              step
            );
          }
        }
      });
    };


  ToIndexedSequence.prototype.cacheResult =
  ToKeyedSequence.prototype.cacheResult =
  ToSetSequence.prototype.cacheResult =
  FromEntriesSequence.prototype.cacheResult =
    cacheResultThrough;


  function flipFactory(iterable) {
    var flipSequence = makeSequence(iterable);
    flipSequence._iter = iterable;
    flipSequence.size = iterable.size;
    flipSequence.flip = function()  {return iterable};
    flipSequence.reverse = function () {
      var reversedSequence = iterable.reverse.apply(this); // super.reverse()
      reversedSequence.flip = function()  {return iterable.reverse()};
      return reversedSequence;
    };
    flipSequence.has = function(key ) {return iterable.includes(key)};
    flipSequence.includes = function(key ) {return iterable.has(key)};
    flipSequence.cacheResult = cacheResultThrough;
    flipSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      return iterable.__iterate(function(v, k)  {return fn(k, v, this$0) !== false}, reverse);
    };
    flipSequence.__iteratorUncached = function(type, reverse) {
      if (type === ITERATE_ENTRIES) {
        var iterator = iterable.__iterator(type, reverse);
        return new Iterator(function()  {
          var step = iterator.next();
          if (!step.done) {
            var k = step.value[0];
            step.value[0] = step.value[1];
            step.value[1] = k;
          }
          return step;
        });
      }
      return iterable.__iterator(
        type === ITERATE_VALUES ? ITERATE_KEYS : ITERATE_VALUES,
        reverse
      );
    };
    return flipSequence;
  }


  function mapFactory(iterable, mapper, context) {
    var mappedSequence = makeSequence(iterable);
    mappedSequence.size = iterable.size;
    mappedSequence.has = function(key ) {return iterable.has(key)};
    mappedSequence.get = function(key, notSetValue)  {
      var v = iterable.get(key, NOT_SET);
      return v === NOT_SET ?
        notSetValue :
        mapper.call(context, v, key, iterable);
    };
    mappedSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      return iterable.__iterate(
        function(v, k, c)  {return fn(mapper.call(context, v, k, c), k, this$0) !== false},
        reverse
      );
    };
    mappedSequence.__iteratorUncached = function (type, reverse) {
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      return new Iterator(function()  {
        var step = iterator.next();
        if (step.done) {
          return step;
        }
        var entry = step.value;
        var key = entry[0];
        return iteratorValue(
          type,
          key,
          mapper.call(context, entry[1], key, iterable),
          step
        );
      });
    };
    return mappedSequence;
  }


  function reverseFactory(iterable, useKeys) {
    var reversedSequence = makeSequence(iterable);
    reversedSequence._iter = iterable;
    reversedSequence.size = iterable.size;
    reversedSequence.reverse = function()  {return iterable};
    if (iterable.flip) {
      reversedSequence.flip = function () {
        var flipSequence = flipFactory(iterable);
        flipSequence.reverse = function()  {return iterable.flip()};
        return flipSequence;
      };
    }
    reversedSequence.get = function(key, notSetValue) 
      {return iterable.get(useKeys ? key : -1 - key, notSetValue)};
    reversedSequence.has = function(key )
      {return iterable.has(useKeys ? key : -1 - key)};
    reversedSequence.includes = function(value ) {return iterable.includes(value)};
    reversedSequence.cacheResult = cacheResultThrough;
    reversedSequence.__iterate = function (fn, reverse) {var this$0 = this;
      return iterable.__iterate(function(v, k)  {return fn(v, k, this$0)}, !reverse);
    };
    reversedSequence.__iterator =
      function(type, reverse)  {return iterable.__iterator(type, !reverse)};
    return reversedSequence;
  }


  function filterFactory(iterable, predicate, context, useKeys) {
    var filterSequence = makeSequence(iterable);
    if (useKeys) {
      filterSequence.has = function(key ) {
        var v = iterable.get(key, NOT_SET);
        return v !== NOT_SET && !!predicate.call(context, v, key, iterable);
      };
      filterSequence.get = function(key, notSetValue)  {
        var v = iterable.get(key, NOT_SET);
        return v !== NOT_SET && predicate.call(context, v, key, iterable) ?
          v : notSetValue;
      };
    }
    filterSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      var iterations = 0;
      iterable.__iterate(function(v, k, c)  {
        if (predicate.call(context, v, k, c)) {
          iterations++;
          return fn(v, useKeys ? k : iterations - 1, this$0);
        }
      }, reverse);
      return iterations;
    };
    filterSequence.__iteratorUncached = function (type, reverse) {
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      var iterations = 0;
      return new Iterator(function()  {
        while (true) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          var entry = step.value;
          var key = entry[0];
          var value = entry[1];
          if (predicate.call(context, value, key, iterable)) {
            return iteratorValue(type, useKeys ? key : iterations++, value, step);
          }
        }
      });
    };
    return filterSequence;
  }


  function countByFactory(iterable, grouper, context) {
    var groups = Map().asMutable();
    iterable.__iterate(function(v, k)  {
      groups.update(
        grouper.call(context, v, k, iterable),
        0,
        function(a ) {return a + 1}
      );
    });
    return groups.asImmutable();
  }


  function groupByFactory(iterable, grouper, context) {
    var isKeyedIter = isKeyed(iterable);
    var groups = (isOrdered(iterable) ? OrderedMap() : Map()).asMutable();
    iterable.__iterate(function(v, k)  {
      groups.update(
        grouper.call(context, v, k, iterable),
        function(a ) {return (a = a || [], a.push(isKeyedIter ? [k, v] : v), a)}
      );
    });
    var coerce = iterableClass(iterable);
    return groups.map(function(arr ) {return reify(iterable, coerce(arr))});
  }


  function sliceFactory(iterable, begin, end, useKeys) {
    var originalSize = iterable.size;

    // Sanitize begin & end using this shorthand for ToInt32(argument)
    // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
    if (begin !== undefined) {
      begin = begin | 0;
    }
    if (end !== undefined) {
      end = end | 0;
    }

    if (wholeSlice(begin, end, originalSize)) {
      return iterable;
    }

    var resolvedBegin = resolveBegin(begin, originalSize);
    var resolvedEnd = resolveEnd(end, originalSize);

    // begin or end will be NaN if they were provided as negative numbers and
    // this iterable's size is unknown. In that case, cache first so there is
    // a known size and these do not resolve to NaN.
    if (resolvedBegin !== resolvedBegin || resolvedEnd !== resolvedEnd) {
      return sliceFactory(iterable.toSeq().cacheResult(), begin, end, useKeys);
    }

    // Note: resolvedEnd is undefined when the original sequence's length is
    // unknown and this slice did not supply an end and should contain all
    // elements after resolvedBegin.
    // In that case, resolvedSize will be NaN and sliceSize will remain undefined.
    var resolvedSize = resolvedEnd - resolvedBegin;
    var sliceSize;
    if (resolvedSize === resolvedSize) {
      sliceSize = resolvedSize < 0 ? 0 : resolvedSize;
    }

    var sliceSeq = makeSequence(iterable);

    // If iterable.size is undefined, the size of the realized sliceSeq is
    // unknown at this point unless the number of items to slice is 0
    sliceSeq.size = sliceSize === 0 ? sliceSize : iterable.size && sliceSize || undefined;

    if (!useKeys && isSeq(iterable) && sliceSize >= 0) {
      sliceSeq.get = function (index, notSetValue) {
        index = wrapIndex(this, index);
        return index >= 0 && index < sliceSize ?
          iterable.get(index + resolvedBegin, notSetValue) :
          notSetValue;
      };
    }

    sliceSeq.__iterateUncached = function(fn, reverse) {var this$0 = this;
      if (sliceSize === 0) {
        return 0;
      }
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var skipped = 0;
      var isSkipping = true;
      var iterations = 0;
      iterable.__iterate(function(v, k)  {
        if (!(isSkipping && (isSkipping = skipped++ < resolvedBegin))) {
          iterations++;
          return fn(v, useKeys ? k : iterations - 1, this$0) !== false &&
                 iterations !== sliceSize;
        }
      });
      return iterations;
    };

    sliceSeq.__iteratorUncached = function(type, reverse) {
      if (sliceSize !== 0 && reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      // Don't bother instantiating parent iterator if taking 0.
      var iterator = sliceSize !== 0 && iterable.__iterator(type, reverse);
      var skipped = 0;
      var iterations = 0;
      return new Iterator(function()  {
        while (skipped++ < resolvedBegin) {
          iterator.next();
        }
        if (++iterations > sliceSize) {
          return iteratorDone();
        }
        var step = iterator.next();
        if (useKeys || type === ITERATE_VALUES) {
          return step;
        } else if (type === ITERATE_KEYS) {
          return iteratorValue(type, iterations - 1, undefined, step);
        } else {
          return iteratorValue(type, iterations - 1, step.value[1], step);
        }
      });
    };

    return sliceSeq;
  }


  function takeWhileFactory(iterable, predicate, context) {
    var takeSequence = makeSequence(iterable);
    takeSequence.__iterateUncached = function(fn, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterations = 0;
      iterable.__iterate(function(v, k, c) 
        {return predicate.call(context, v, k, c) && ++iterations && fn(v, k, this$0)}
      );
      return iterations;
    };
    takeSequence.__iteratorUncached = function(type, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      var iterating = true;
      return new Iterator(function()  {
        if (!iterating) {
          return iteratorDone();
        }
        var step = iterator.next();
        if (step.done) {
          return step;
        }
        var entry = step.value;
        var k = entry[0];
        var v = entry[1];
        if (!predicate.call(context, v, k, this$0)) {
          iterating = false;
          return iteratorDone();
        }
        return type === ITERATE_ENTRIES ? step :
          iteratorValue(type, k, v, step);
      });
    };
    return takeSequence;
  }


  function skipWhileFactory(iterable, predicate, context, useKeys) {
    var skipSequence = makeSequence(iterable);
    skipSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var isSkipping = true;
      var iterations = 0;
      iterable.__iterate(function(v, k, c)  {
        if (!(isSkipping && (isSkipping = predicate.call(context, v, k, c)))) {
          iterations++;
          return fn(v, useKeys ? k : iterations - 1, this$0);
        }
      });
      return iterations;
    };
    skipSequence.__iteratorUncached = function(type, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      var skipping = true;
      var iterations = 0;
      return new Iterator(function()  {
        var step, k, v;
        do {
          step = iterator.next();
          if (step.done) {
            if (useKeys || type === ITERATE_VALUES) {
              return step;
            } else if (type === ITERATE_KEYS) {
              return iteratorValue(type, iterations++, undefined, step);
            } else {
              return iteratorValue(type, iterations++, step.value[1], step);
            }
          }
          var entry = step.value;
          k = entry[0];
          v = entry[1];
          skipping && (skipping = predicate.call(context, v, k, this$0));
        } while (skipping);
        return type === ITERATE_ENTRIES ? step :
          iteratorValue(type, k, v, step);
      });
    };
    return skipSequence;
  }


  function concatFactory(iterable, values) {
    var isKeyedIterable = isKeyed(iterable);
    var iters = [iterable].concat(values).map(function(v ) {
      if (!isIterable(v)) {
        v = isKeyedIterable ?
          keyedSeqFromValue(v) :
          indexedSeqFromValue(Array.isArray(v) ? v : [v]);
      } else if (isKeyedIterable) {
        v = KeyedIterable(v);
      }
      return v;
    }).filter(function(v ) {return v.size !== 0});

    if (iters.length === 0) {
      return iterable;
    }

    if (iters.length === 1) {
      var singleton = iters[0];
      if (singleton === iterable ||
          isKeyedIterable && isKeyed(singleton) ||
          isIndexed(iterable) && isIndexed(singleton)) {
        return singleton;
      }
    }

    var concatSeq = new ArraySeq(iters);
    if (isKeyedIterable) {
      concatSeq = concatSeq.toKeyedSeq();
    } else if (!isIndexed(iterable)) {
      concatSeq = concatSeq.toSetSeq();
    }
    concatSeq = concatSeq.flatten(true);
    concatSeq.size = iters.reduce(
      function(sum, seq)  {
        if (sum !== undefined) {
          var size = seq.size;
          if (size !== undefined) {
            return sum + size;
          }
        }
      },
      0
    );
    return concatSeq;
  }


  function flattenFactory(iterable, depth, useKeys) {
    var flatSequence = makeSequence(iterable);
    flatSequence.__iterateUncached = function(fn, reverse) {
      var iterations = 0;
      var stopped = false;
      function flatDeep(iter, currentDepth) {var this$0 = this;
        iter.__iterate(function(v, k)  {
          if ((!depth || currentDepth < depth) && isIterable(v)) {
            flatDeep(v, currentDepth + 1);
          } else if (fn(v, useKeys ? k : iterations++, this$0) === false) {
            stopped = true;
          }
          return !stopped;
        }, reverse);
      }
      flatDeep(iterable, 0);
      return iterations;
    };
    flatSequence.__iteratorUncached = function(type, reverse) {
      var iterator = iterable.__iterator(type, reverse);
      var stack = [];
      var iterations = 0;
      return new Iterator(function()  {
        while (iterator) {
          var step = iterator.next();
          if (step.done !== false) {
            iterator = stack.pop();
            continue;
          }
          var v = step.value;
          if (type === ITERATE_ENTRIES) {
            v = v[1];
          }
          if ((!depth || stack.length < depth) && isIterable(v)) {
            stack.push(iterator);
            iterator = v.__iterator(type, reverse);
          } else {
            return useKeys ? step : iteratorValue(type, iterations++, v, step);
          }
        }
        return iteratorDone();
      });
    };
    return flatSequence;
  }


  function flatMapFactory(iterable, mapper, context) {
    var coerce = iterableClass(iterable);
    return iterable.toSeq().map(
      function(v, k)  {return coerce(mapper.call(context, v, k, iterable))}
    ).flatten(true);
  }


  function interposeFactory(iterable, separator) {
    var interposedSequence = makeSequence(iterable);
    interposedSequence.size = iterable.size && iterable.size * 2 -1;
    interposedSequence.__iterateUncached = function(fn, reverse) {var this$0 = this;
      var iterations = 0;
      iterable.__iterate(function(v, k) 
        {return (!iterations || fn(separator, iterations++, this$0) !== false) &&
        fn(v, iterations++, this$0) !== false},
        reverse
      );
      return iterations;
    };
    interposedSequence.__iteratorUncached = function(type, reverse) {
      var iterator = iterable.__iterator(ITERATE_VALUES, reverse);
      var iterations = 0;
      var step;
      return new Iterator(function()  {
        if (!step || iterations % 2) {
          step = iterator.next();
          if (step.done) {
            return step;
          }
        }
        return iterations % 2 ?
          iteratorValue(type, iterations++, separator) :
          iteratorValue(type, iterations++, step.value, step);
      });
    };
    return interposedSequence;
  }


  function sortFactory(iterable, comparator, mapper) {
    if (!comparator) {
      comparator = defaultComparator;
    }
    var isKeyedIterable = isKeyed(iterable);
    var index = 0;
    var entries = iterable.toSeq().map(
      function(v, k)  {return [k, v, index++, mapper ? mapper(v, k, iterable) : v]}
    ).toArray();
    entries.sort(function(a, b)  {return comparator(a[3], b[3]) || a[2] - b[2]}).forEach(
      isKeyedIterable ?
      function(v, i)  { entries[i].length = 2; } :
      function(v, i)  { entries[i] = v[1]; }
    );
    return isKeyedIterable ? KeyedSeq(entries) :
      isIndexed(iterable) ? IndexedSeq(entries) :
      SetSeq(entries);
  }


  function maxFactory(iterable, comparator, mapper) {
    if (!comparator) {
      comparator = defaultComparator;
    }
    if (mapper) {
      var entry = iterable.toSeq()
        .map(function(v, k)  {return [v, mapper(v, k, iterable)]})
        .reduce(function(a, b)  {return maxCompare(comparator, a[1], b[1]) ? b : a});
      return entry && entry[0];
    } else {
      return iterable.reduce(function(a, b)  {return maxCompare(comparator, a, b) ? b : a});
    }
  }

  function maxCompare(comparator, a, b) {
    var comp = comparator(b, a);
    // b is considered the new max if the comparator declares them equal, but
    // they are not equal and b is in fact a nullish value.
    return (comp === 0 && b !== a && (b === undefined || b === null || b !== b)) || comp > 0;
  }


  function zipWithFactory(keyIter, zipper, iters) {
    var zipSequence = makeSequence(keyIter);
    zipSequence.size = new ArraySeq(iters).map(function(i ) {return i.size}).min();
    // Note: this a generic base implementation of __iterate in terms of
    // __iterator which may be more generically useful in the future.
    zipSequence.__iterate = function(fn, reverse) {
      /* generic:
      var iterator = this.__iterator(ITERATE_ENTRIES, reverse);
      var step;
      var iterations = 0;
      while (!(step = iterator.next()).done) {
        iterations++;
        if (fn(step.value[1], step.value[0], this) === false) {
          break;
        }
      }
      return iterations;
      */
      // indexed:
      var iterator = this.__iterator(ITERATE_VALUES, reverse);
      var step;
      var iterations = 0;
      while (!(step = iterator.next()).done) {
        if (fn(step.value, iterations++, this) === false) {
          break;
        }
      }
      return iterations;
    };
    zipSequence.__iteratorUncached = function(type, reverse) {
      var iterators = iters.map(function(i )
        {return (i = Iterable(i), getIterator(reverse ? i.reverse() : i))}
      );
      var iterations = 0;
      var isDone = false;
      return new Iterator(function()  {
        var steps;
        if (!isDone) {
          steps = iterators.map(function(i ) {return i.next()});
          isDone = steps.some(function(s ) {return s.done});
        }
        if (isDone) {
          return iteratorDone();
        }
        return iteratorValue(
          type,
          iterations++,
          zipper.apply(null, steps.map(function(s ) {return s.value}))
        );
      });
    };
    return zipSequence
  }


  // #pragma Helper Functions

  function reify(iter, seq) {
    return isSeq(iter) ? seq : iter.constructor(seq);
  }

  function validateEntry(entry) {
    if (entry !== Object(entry)) {
      throw new TypeError('Expected [K, V] tuple: ' + entry);
    }
  }

  function resolveSize(iter) {
    assertNotInfinite(iter.size);
    return ensureSize(iter);
  }

  function iterableClass(iterable) {
    return isKeyed(iterable) ? KeyedIterable :
      isIndexed(iterable) ? IndexedIterable :
      SetIterable;
  }

  function makeSequence(iterable) {
    return Object.create(
      (
        isKeyed(iterable) ? KeyedSeq :
        isIndexed(iterable) ? IndexedSeq :
        SetSeq
      ).prototype
    );
  }

  function cacheResultThrough() {
    if (this._iter.cacheResult) {
      this._iter.cacheResult();
      this.size = this._iter.size;
      return this;
    } else {
      return Seq.prototype.cacheResult.call(this);
    }
  }

  function defaultComparator(a, b) {
    return a > b ? 1 : a < b ? -1 : 0;
  }

  function forceIterator(keyPath) {
    var iter = getIterator(keyPath);
    if (!iter) {
      // Array might not be iterable in this environment, so we need a fallback
      // to our wrapped type.
      if (!isArrayLike(keyPath)) {
        throw new TypeError('Expected iterable or array-like: ' + keyPath);
      }
      iter = getIterator(Iterable(keyPath));
    }
    return iter;
  }

  createClass(Record, KeyedCollection);

    function Record(defaultValues, name) {
      var hasInitialized;

      var RecordType = function Record(values) {
        if (values instanceof RecordType) {
          return values;
        }
        if (!(this instanceof RecordType)) {
          return new RecordType(values);
        }
        if (!hasInitialized) {
          hasInitialized = true;
          var keys = Object.keys(defaultValues);
          setProps(RecordTypePrototype, keys);
          RecordTypePrototype.size = keys.length;
          RecordTypePrototype._name = name;
          RecordTypePrototype._keys = keys;
          RecordTypePrototype._defaultValues = defaultValues;
        }
        this._map = Map(values);
      };

      var RecordTypePrototype = RecordType.prototype = Object.create(RecordPrototype);
      RecordTypePrototype.constructor = RecordType;

      return RecordType;
    }

    Record.prototype.toString = function() {
      return this.__toString(recordName(this) + ' {', '}');
    };

    // @pragma Access

    Record.prototype.has = function(k) {
      return this._defaultValues.hasOwnProperty(k);
    };

    Record.prototype.get = function(k, notSetValue) {
      if (!this.has(k)) {
        return notSetValue;
      }
      var defaultVal = this._defaultValues[k];
      return this._map ? this._map.get(k, defaultVal) : defaultVal;
    };

    // @pragma Modification

    Record.prototype.clear = function() {
      if (this.__ownerID) {
        this._map && this._map.clear();
        return this;
      }
      var RecordType = this.constructor;
      return RecordType._empty || (RecordType._empty = makeRecord(this, emptyMap()));
    };

    Record.prototype.set = function(k, v) {
      if (!this.has(k)) {
        throw new Error('Cannot set unknown key "' + k + '" on ' + recordName(this));
      }
      var newMap = this._map && this._map.set(k, v);
      if (this.__ownerID || newMap === this._map) {
        return this;
      }
      return makeRecord(this, newMap);
    };

    Record.prototype.remove = function(k) {
      if (!this.has(k)) {
        return this;
      }
      var newMap = this._map && this._map.remove(k);
      if (this.__ownerID || newMap === this._map) {
        return this;
      }
      return makeRecord(this, newMap);
    };

    Record.prototype.wasAltered = function() {
      return this._map.wasAltered();
    };

    Record.prototype.__iterator = function(type, reverse) {var this$0 = this;
      return KeyedIterable(this._defaultValues).map(function(_, k)  {return this$0.get(k)}).__iterator(type, reverse);
    };

    Record.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return KeyedIterable(this._defaultValues).map(function(_, k)  {return this$0.get(k)}).__iterate(fn, reverse);
    };

    Record.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      var newMap = this._map && this._map.__ensureOwner(ownerID);
      if (!ownerID) {
        this.__ownerID = ownerID;
        this._map = newMap;
        return this;
      }
      return makeRecord(this, newMap, ownerID);
    };


  var RecordPrototype = Record.prototype;
  RecordPrototype[DELETE] = RecordPrototype.remove;
  RecordPrototype.deleteIn =
  RecordPrototype.removeIn = MapPrototype.removeIn;
  RecordPrototype.merge = MapPrototype.merge;
  RecordPrototype.mergeWith = MapPrototype.mergeWith;
  RecordPrototype.mergeIn = MapPrototype.mergeIn;
  RecordPrototype.mergeDeep = MapPrototype.mergeDeep;
  RecordPrototype.mergeDeepWith = MapPrototype.mergeDeepWith;
  RecordPrototype.mergeDeepIn = MapPrototype.mergeDeepIn;
  RecordPrototype.setIn = MapPrototype.setIn;
  RecordPrototype.update = MapPrototype.update;
  RecordPrototype.updateIn = MapPrototype.updateIn;
  RecordPrototype.withMutations = MapPrototype.withMutations;
  RecordPrototype.asMutable = MapPrototype.asMutable;
  RecordPrototype.asImmutable = MapPrototype.asImmutable;


  function makeRecord(likeRecord, map, ownerID) {
    var record = Object.create(Object.getPrototypeOf(likeRecord));
    record._map = map;
    record.__ownerID = ownerID;
    return record;
  }

  function recordName(record) {
    return record._name || record.constructor.name || 'Record';
  }

  function setProps(prototype, names) {
    try {
      names.forEach(setProp.bind(undefined, prototype));
    } catch (error) {
      // Object.defineProperty failed. Probably IE8.
    }
  }

  function setProp(prototype, name) {
    Object.defineProperty(prototype, name, {
      get: function() {
        return this.get(name);
      },
      set: function(value) {
        invariant(this.__ownerID, 'Cannot set on an immutable record.');
        this.set(name, value);
      }
    });
  }

  createClass(Set, SetCollection);

    // @pragma Construction

    function Set(value) {
      return value === null || value === undefined ? emptySet() :
        isSet(value) && !isOrdered(value) ? value :
        emptySet().withMutations(function(set ) {
          var iter = SetIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v ) {return set.add(v)});
        });
    }

    Set.of = function(/*...values*/) {
      return this(arguments);
    };

    Set.fromKeys = function(value) {
      return this(KeyedIterable(value).keySeq());
    };

    Set.prototype.toString = function() {
      return this.__toString('Set {', '}');
    };

    // @pragma Access

    Set.prototype.has = function(value) {
      return this._map.has(value);
    };

    // @pragma Modification

    Set.prototype.add = function(value) {
      return updateSet(this, this._map.set(value, true));
    };

    Set.prototype.remove = function(value) {
      return updateSet(this, this._map.remove(value));
    };

    Set.prototype.clear = function() {
      return updateSet(this, this._map.clear());
    };

    // @pragma Composition

    Set.prototype.union = function() {var iters = SLICE$0.call(arguments, 0);
      iters = iters.filter(function(x ) {return x.size !== 0});
      if (iters.length === 0) {
        return this;
      }
      if (this.size === 0 && !this.__ownerID && iters.length === 1) {
        return this.constructor(iters[0]);
      }
      return this.withMutations(function(set ) {
        for (var ii = 0; ii < iters.length; ii++) {
          SetIterable(iters[ii]).forEach(function(value ) {return set.add(value)});
        }
      });
    };

    Set.prototype.intersect = function() {var iters = SLICE$0.call(arguments, 0);
      if (iters.length === 0) {
        return this;
      }
      iters = iters.map(function(iter ) {return SetIterable(iter)});
      var originalSet = this;
      return this.withMutations(function(set ) {
        originalSet.forEach(function(value ) {
          if (!iters.every(function(iter ) {return iter.includes(value)})) {
            set.remove(value);
          }
        });
      });
    };

    Set.prototype.subtract = function() {var iters = SLICE$0.call(arguments, 0);
      if (iters.length === 0) {
        return this;
      }
      iters = iters.map(function(iter ) {return SetIterable(iter)});
      var originalSet = this;
      return this.withMutations(function(set ) {
        originalSet.forEach(function(value ) {
          if (iters.some(function(iter ) {return iter.includes(value)})) {
            set.remove(value);
          }
        });
      });
    };

    Set.prototype.merge = function() {
      return this.union.apply(this, arguments);
    };

    Set.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return this.union.apply(this, iters);
    };

    Set.prototype.sort = function(comparator) {
      // Late binding
      return OrderedSet(sortFactory(this, comparator));
    };

    Set.prototype.sortBy = function(mapper, comparator) {
      // Late binding
      return OrderedSet(sortFactory(this, comparator, mapper));
    };

    Set.prototype.wasAltered = function() {
      return this._map.wasAltered();
    };

    Set.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._map.__iterate(function(_, k)  {return fn(k, k, this$0)}, reverse);
    };

    Set.prototype.__iterator = function(type, reverse) {
      return this._map.map(function(_, k)  {return k}).__iterator(type, reverse);
    };

    Set.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      var newMap = this._map.__ensureOwner(ownerID);
      if (!ownerID) {
        this.__ownerID = ownerID;
        this._map = newMap;
        return this;
      }
      return this.__make(newMap, ownerID);
    };


  function isSet(maybeSet) {
    return !!(maybeSet && maybeSet[IS_SET_SENTINEL]);
  }

  Set.isSet = isSet;

  var IS_SET_SENTINEL = '@@__IMMUTABLE_SET__@@';

  var SetPrototype = Set.prototype;
  SetPrototype[IS_SET_SENTINEL] = true;
  SetPrototype[DELETE] = SetPrototype.remove;
  SetPrototype.mergeDeep = SetPrototype.merge;
  SetPrototype.mergeDeepWith = SetPrototype.mergeWith;
  SetPrototype.withMutations = MapPrototype.withMutations;
  SetPrototype.asMutable = MapPrototype.asMutable;
  SetPrototype.asImmutable = MapPrototype.asImmutable;

  SetPrototype.__empty = emptySet;
  SetPrototype.__make = makeSet;

  function updateSet(set, newMap) {
    if (set.__ownerID) {
      set.size = newMap.size;
      set._map = newMap;
      return set;
    }
    return newMap === set._map ? set :
      newMap.size === 0 ? set.__empty() :
      set.__make(newMap);
  }

  function makeSet(map, ownerID) {
    var set = Object.create(SetPrototype);
    set.size = map ? map.size : 0;
    set._map = map;
    set.__ownerID = ownerID;
    return set;
  }

  var EMPTY_SET;
  function emptySet() {
    return EMPTY_SET || (EMPTY_SET = makeSet(emptyMap()));
  }

  createClass(OrderedSet, Set);

    // @pragma Construction

    function OrderedSet(value) {
      return value === null || value === undefined ? emptyOrderedSet() :
        isOrderedSet(value) ? value :
        emptyOrderedSet().withMutations(function(set ) {
          var iter = SetIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v ) {return set.add(v)});
        });
    }

    OrderedSet.of = function(/*...values*/) {
      return this(arguments);
    };

    OrderedSet.fromKeys = function(value) {
      return this(KeyedIterable(value).keySeq());
    };

    OrderedSet.prototype.toString = function() {
      return this.__toString('OrderedSet {', '}');
    };


  function isOrderedSet(maybeOrderedSet) {
    return isSet(maybeOrderedSet) && isOrdered(maybeOrderedSet);
  }

  OrderedSet.isOrderedSet = isOrderedSet;

  var OrderedSetPrototype = OrderedSet.prototype;
  OrderedSetPrototype[IS_ORDERED_SENTINEL] = true;

  OrderedSetPrototype.__empty = emptyOrderedSet;
  OrderedSetPrototype.__make = makeOrderedSet;

  function makeOrderedSet(map, ownerID) {
    var set = Object.create(OrderedSetPrototype);
    set.size = map ? map.size : 0;
    set._map = map;
    set.__ownerID = ownerID;
    return set;
  }

  var EMPTY_ORDERED_SET;
  function emptyOrderedSet() {
    return EMPTY_ORDERED_SET || (EMPTY_ORDERED_SET = makeOrderedSet(emptyOrderedMap()));
  }

  createClass(Stack, IndexedCollection);

    // @pragma Construction

    function Stack(value) {
      return value === null || value === undefined ? emptyStack() :
        isStack(value) ? value :
        emptyStack().unshiftAll(value);
    }

    Stack.of = function(/*...values*/) {
      return this(arguments);
    };

    Stack.prototype.toString = function() {
      return this.__toString('Stack [', ']');
    };

    // @pragma Access

    Stack.prototype.get = function(index, notSetValue) {
      var head = this._head;
      index = wrapIndex(this, index);
      while (head && index--) {
        head = head.next;
      }
      return head ? head.value : notSetValue;
    };

    Stack.prototype.peek = function() {
      return this._head && this._head.value;
    };

    // @pragma Modification

    Stack.prototype.push = function(/*...values*/) {
      if (arguments.length === 0) {
        return this;
      }
      var newSize = this.size + arguments.length;
      var head = this._head;
      for (var ii = arguments.length - 1; ii >= 0; ii--) {
        head = {
          value: arguments[ii],
          next: head
        };
      }
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    Stack.prototype.pushAll = function(iter) {
      iter = IndexedIterable(iter);
      if (iter.size === 0) {
        return this;
      }
      assertNotInfinite(iter.size);
      var newSize = this.size;
      var head = this._head;
      iter.reverse().forEach(function(value ) {
        newSize++;
        head = {
          value: value,
          next: head
        };
      });
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    Stack.prototype.pop = function() {
      return this.slice(1);
    };

    Stack.prototype.unshift = function(/*...values*/) {
      return this.push.apply(this, arguments);
    };

    Stack.prototype.unshiftAll = function(iter) {
      return this.pushAll(iter);
    };

    Stack.prototype.shift = function() {
      return this.pop.apply(this, arguments);
    };

    Stack.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._head = undefined;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyStack();
    };

    Stack.prototype.slice = function(begin, end) {
      if (wholeSlice(begin, end, this.size)) {
        return this;
      }
      var resolvedBegin = resolveBegin(begin, this.size);
      var resolvedEnd = resolveEnd(end, this.size);
      if (resolvedEnd !== this.size) {
        // super.slice(begin, end);
        return IndexedCollection.prototype.slice.call(this, begin, end);
      }
      var newSize = this.size - resolvedBegin;
      var head = this._head;
      while (resolvedBegin--) {
        head = head.next;
      }
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    // @pragma Mutability

    Stack.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        this.__ownerID = ownerID;
        this.__altered = false;
        return this;
      }
      return makeStack(this.size, this._head, ownerID, this.__hash);
    };

    // @pragma Iteration

    Stack.prototype.__iterate = function(fn, reverse) {
      if (reverse) {
        return this.reverse().__iterate(fn);
      }
      var iterations = 0;
      var node = this._head;
      while (node) {
        if (fn(node.value, iterations++, this) === false) {
          break;
        }
        node = node.next;
      }
      return iterations;
    };

    Stack.prototype.__iterator = function(type, reverse) {
      if (reverse) {
        return this.reverse().__iterator(type);
      }
      var iterations = 0;
      var node = this._head;
      return new Iterator(function()  {
        if (node) {
          var value = node.value;
          node = node.next;
          return iteratorValue(type, iterations++, value);
        }
        return iteratorDone();
      });
    };


  function isStack(maybeStack) {
    return !!(maybeStack && maybeStack[IS_STACK_SENTINEL]);
  }

  Stack.isStack = isStack;

  var IS_STACK_SENTINEL = '@@__IMMUTABLE_STACK__@@';

  var StackPrototype = Stack.prototype;
  StackPrototype[IS_STACK_SENTINEL] = true;
  StackPrototype.withMutations = MapPrototype.withMutations;
  StackPrototype.asMutable = MapPrototype.asMutable;
  StackPrototype.asImmutable = MapPrototype.asImmutable;
  StackPrototype.wasAltered = MapPrototype.wasAltered;


  function makeStack(size, head, ownerID, hash) {
    var map = Object.create(StackPrototype);
    map.size = size;
    map._head = head;
    map.__ownerID = ownerID;
    map.__hash = hash;
    map.__altered = false;
    return map;
  }

  var EMPTY_STACK;
  function emptyStack() {
    return EMPTY_STACK || (EMPTY_STACK = makeStack(0));
  }

  /**
   * Contributes additional methods to a constructor
   */
  function mixin(ctor, methods) {
    var keyCopier = function(key ) { ctor.prototype[key] = methods[key]; };
    Object.keys(methods).forEach(keyCopier);
    Object.getOwnPropertySymbols &&
      Object.getOwnPropertySymbols(methods).forEach(keyCopier);
    return ctor;
  }

  Iterable.Iterator = Iterator;

  mixin(Iterable, {

    // ### Conversion to other types

    toArray: function() {
      assertNotInfinite(this.size);
      var array = new Array(this.size || 0);
      this.valueSeq().__iterate(function(v, i)  { array[i] = v; });
      return array;
    },

    toIndexedSeq: function() {
      return new ToIndexedSequence(this);
    },

    toJS: function() {
      return this.toSeq().map(
        function(value ) {return value && typeof value.toJS === 'function' ? value.toJS() : value}
      ).__toJS();
    },

    toJSON: function() {
      return this.toSeq().map(
        function(value ) {return value && typeof value.toJSON === 'function' ? value.toJSON() : value}
      ).__toJS();
    },

    toKeyedSeq: function() {
      return new ToKeyedSequence(this, true);
    },

    toMap: function() {
      // Use Late Binding here to solve the circular dependency.
      return Map(this.toKeyedSeq());
    },

    toObject: function() {
      assertNotInfinite(this.size);
      var object = {};
      this.__iterate(function(v, k)  { object[k] = v; });
      return object;
    },

    toOrderedMap: function() {
      // Use Late Binding here to solve the circular dependency.
      return OrderedMap(this.toKeyedSeq());
    },

    toOrderedSet: function() {
      // Use Late Binding here to solve the circular dependency.
      return OrderedSet(isKeyed(this) ? this.valueSeq() : this);
    },

    toSet: function() {
      // Use Late Binding here to solve the circular dependency.
      return Set(isKeyed(this) ? this.valueSeq() : this);
    },

    toSetSeq: function() {
      return new ToSetSequence(this);
    },

    toSeq: function() {
      return isIndexed(this) ? this.toIndexedSeq() :
        isKeyed(this) ? this.toKeyedSeq() :
        this.toSetSeq();
    },

    toStack: function() {
      // Use Late Binding here to solve the circular dependency.
      return Stack(isKeyed(this) ? this.valueSeq() : this);
    },

    toList: function() {
      // Use Late Binding here to solve the circular dependency.
      return List(isKeyed(this) ? this.valueSeq() : this);
    },


    // ### Common JavaScript methods and properties

    toString: function() {
      return '[Iterable]';
    },

    __toString: function(head, tail) {
      if (this.size === 0) {
        return head + tail;
      }
      return head + ' ' + this.toSeq().map(this.__toStringMapper).join(', ') + ' ' + tail;
    },


    // ### ES6 Collection methods (ES6 Array and Map)

    concat: function() {var values = SLICE$0.call(arguments, 0);
      return reify(this, concatFactory(this, values));
    },

    includes: function(searchValue) {
      return this.some(function(value ) {return is(value, searchValue)});
    },

    entries: function() {
      return this.__iterator(ITERATE_ENTRIES);
    },

    every: function(predicate, context) {
      assertNotInfinite(this.size);
      var returnValue = true;
      this.__iterate(function(v, k, c)  {
        if (!predicate.call(context, v, k, c)) {
          returnValue = false;
          return false;
        }
      });
      return returnValue;
    },

    filter: function(predicate, context) {
      return reify(this, filterFactory(this, predicate, context, true));
    },

    find: function(predicate, context, notSetValue) {
      var entry = this.findEntry(predicate, context);
      return entry ? entry[1] : notSetValue;
    },

    findEntry: function(predicate, context) {
      var found;
      this.__iterate(function(v, k, c)  {
        if (predicate.call(context, v, k, c)) {
          found = [k, v];
          return false;
        }
      });
      return found;
    },

    findLastEntry: function(predicate, context) {
      return this.toSeq().reverse().findEntry(predicate, context);
    },

    forEach: function(sideEffect, context) {
      assertNotInfinite(this.size);
      return this.__iterate(context ? sideEffect.bind(context) : sideEffect);
    },

    join: function(separator) {
      assertNotInfinite(this.size);
      separator = separator !== undefined ? '' + separator : ',';
      var joined = '';
      var isFirst = true;
      this.__iterate(function(v ) {
        isFirst ? (isFirst = false) : (joined += separator);
        joined += v !== null && v !== undefined ? v.toString() : '';
      });
      return joined;
    },

    keys: function() {
      return this.__iterator(ITERATE_KEYS);
    },

    map: function(mapper, context) {
      return reify(this, mapFactory(this, mapper, context));
    },

    reduce: function(reducer, initialReduction, context) {
      assertNotInfinite(this.size);
      var reduction;
      var useFirst;
      if (arguments.length < 2) {
        useFirst = true;
      } else {
        reduction = initialReduction;
      }
      this.__iterate(function(v, k, c)  {
        if (useFirst) {
          useFirst = false;
          reduction = v;
        } else {
          reduction = reducer.call(context, reduction, v, k, c);
        }
      });
      return reduction;
    },

    reduceRight: function(reducer, initialReduction, context) {
      var reversed = this.toKeyedSeq().reverse();
      return reversed.reduce.apply(reversed, arguments);
    },

    reverse: function() {
      return reify(this, reverseFactory(this, true));
    },

    slice: function(begin, end) {
      return reify(this, sliceFactory(this, begin, end, true));
    },

    some: function(predicate, context) {
      return !this.every(not(predicate), context);
    },

    sort: function(comparator) {
      return reify(this, sortFactory(this, comparator));
    },

    values: function() {
      return this.__iterator(ITERATE_VALUES);
    },


    // ### More sequential methods

    butLast: function() {
      return this.slice(0, -1);
    },

    isEmpty: function() {
      return this.size !== undefined ? this.size === 0 : !this.some(function()  {return true});
    },

    count: function(predicate, context) {
      return ensureSize(
        predicate ? this.toSeq().filter(predicate, context) : this
      );
    },

    countBy: function(grouper, context) {
      return countByFactory(this, grouper, context);
    },

    equals: function(other) {
      return deepEqual(this, other);
    },

    entrySeq: function() {
      var iterable = this;
      if (iterable._cache) {
        // We cache as an entries array, so we can just return the cache!
        return new ArraySeq(iterable._cache);
      }
      var entriesSequence = iterable.toSeq().map(entryMapper).toIndexedSeq();
      entriesSequence.fromEntrySeq = function()  {return iterable.toSeq()};
      return entriesSequence;
    },

    filterNot: function(predicate, context) {
      return this.filter(not(predicate), context);
    },

    findLast: function(predicate, context, notSetValue) {
      return this.toKeyedSeq().reverse().find(predicate, context, notSetValue);
    },

    first: function() {
      return this.find(returnTrue);
    },

    flatMap: function(mapper, context) {
      return reify(this, flatMapFactory(this, mapper, context));
    },

    flatten: function(depth) {
      return reify(this, flattenFactory(this, depth, true));
    },

    fromEntrySeq: function() {
      return new FromEntriesSequence(this);
    },

    get: function(searchKey, notSetValue) {
      return this.find(function(_, key)  {return is(key, searchKey)}, undefined, notSetValue);
    },

    getIn: function(searchKeyPath, notSetValue) {
      var nested = this;
      // Note: in an ES6 environment, we would prefer:
      // for (var key of searchKeyPath) {
      var iter = forceIterator(searchKeyPath);
      var step;
      while (!(step = iter.next()).done) {
        var key = step.value;
        nested = nested && nested.get ? nested.get(key, NOT_SET) : NOT_SET;
        if (nested === NOT_SET) {
          return notSetValue;
        }
      }
      return nested;
    },

    groupBy: function(grouper, context) {
      return groupByFactory(this, grouper, context);
    },

    has: function(searchKey) {
      return this.get(searchKey, NOT_SET) !== NOT_SET;
    },

    hasIn: function(searchKeyPath) {
      return this.getIn(searchKeyPath, NOT_SET) !== NOT_SET;
    },

    isSubset: function(iter) {
      iter = typeof iter.includes === 'function' ? iter : Iterable(iter);
      return this.every(function(value ) {return iter.includes(value)});
    },

    isSuperset: function(iter) {
      iter = typeof iter.isSubset === 'function' ? iter : Iterable(iter);
      return iter.isSubset(this);
    },

    keySeq: function() {
      return this.toSeq().map(keyMapper).toIndexedSeq();
    },

    last: function() {
      return this.toSeq().reverse().first();
    },

    max: function(comparator) {
      return maxFactory(this, comparator);
    },

    maxBy: function(mapper, comparator) {
      return maxFactory(this, comparator, mapper);
    },

    min: function(comparator) {
      return maxFactory(this, comparator ? neg(comparator) : defaultNegComparator);
    },

    minBy: function(mapper, comparator) {
      return maxFactory(this, comparator ? neg(comparator) : defaultNegComparator, mapper);
    },

    rest: function() {
      return this.slice(1);
    },

    skip: function(amount) {
      return this.slice(Math.max(0, amount));
    },

    skipLast: function(amount) {
      return reify(this, this.toSeq().reverse().skip(amount).reverse());
    },

    skipWhile: function(predicate, context) {
      return reify(this, skipWhileFactory(this, predicate, context, true));
    },

    skipUntil: function(predicate, context) {
      return this.skipWhile(not(predicate), context);
    },

    sortBy: function(mapper, comparator) {
      return reify(this, sortFactory(this, comparator, mapper));
    },

    take: function(amount) {
      return this.slice(0, Math.max(0, amount));
    },

    takeLast: function(amount) {
      return reify(this, this.toSeq().reverse().take(amount).reverse());
    },

    takeWhile: function(predicate, context) {
      return reify(this, takeWhileFactory(this, predicate, context));
    },

    takeUntil: function(predicate, context) {
      return this.takeWhile(not(predicate), context);
    },

    valueSeq: function() {
      return this.toIndexedSeq();
    },


    // ### Hashable Object

    hashCode: function() {
      return this.__hash || (this.__hash = hashIterable(this));
    }


    // ### Internal

    // abstract __iterate(fn, reverse)

    // abstract __iterator(type, reverse)
  });

  // var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';
  // var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';
  // var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';
  // var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';

  var IterablePrototype = Iterable.prototype;
  IterablePrototype[IS_ITERABLE_SENTINEL] = true;
  IterablePrototype[ITERATOR_SYMBOL] = IterablePrototype.values;
  IterablePrototype.__toJS = IterablePrototype.toArray;
  IterablePrototype.__toStringMapper = quoteString;
  IterablePrototype.inspect =
  IterablePrototype.toSource = function() { return this.toString(); };
  IterablePrototype.chain = IterablePrototype.flatMap;
  IterablePrototype.contains = IterablePrototype.includes;

  // Temporary warning about using length
  (function () {
    try {
      Object.defineProperty(IterablePrototype, 'length', {
        get: function () {
          if (!Iterable.noLengthWarning) {
            var stack;
            try {
              throw new Error();
            } catch (error) {
              stack = error.stack;
            }
            if (stack.indexOf('_wrapObject') === -1) {
              console && console.warn && console.warn(
                'iterable.length has been deprecated, '+
                'use iterable.size or iterable.count(). '+
                'This warning will become a silent error in a future version. ' +
                stack
              );
              return this.size;
            }
          }
        }
      });
    } catch (e) {}
  })();



  mixin(KeyedIterable, {

    // ### More sequential methods

    flip: function() {
      return reify(this, flipFactory(this));
    },

    findKey: function(predicate, context) {
      var entry = this.findEntry(predicate, context);
      return entry && entry[0];
    },

    findLastKey: function(predicate, context) {
      return this.toSeq().reverse().findKey(predicate, context);
    },

    keyOf: function(searchValue) {
      return this.findKey(function(value ) {return is(value, searchValue)});
    },

    lastKeyOf: function(searchValue) {
      return this.findLastKey(function(value ) {return is(value, searchValue)});
    },

    mapEntries: function(mapper, context) {var this$0 = this;
      var iterations = 0;
      return reify(this,
        this.toSeq().map(
          function(v, k)  {return mapper.call(context, [k, v], iterations++, this$0)}
        ).fromEntrySeq()
      );
    },

    mapKeys: function(mapper, context) {var this$0 = this;
      return reify(this,
        this.toSeq().flip().map(
          function(k, v)  {return mapper.call(context, k, v, this$0)}
        ).flip()
      );
    }

  });

  var KeyedIterablePrototype = KeyedIterable.prototype;
  KeyedIterablePrototype[IS_KEYED_SENTINEL] = true;
  KeyedIterablePrototype[ITERATOR_SYMBOL] = IterablePrototype.entries;
  KeyedIterablePrototype.__toJS = IterablePrototype.toObject;
  KeyedIterablePrototype.__toStringMapper = function(v, k)  {return JSON.stringify(k) + ': ' + quoteString(v)};



  mixin(IndexedIterable, {

    // ### Conversion to other types

    toKeyedSeq: function() {
      return new ToKeyedSequence(this, false);
    },


    // ### ES6 Collection methods (ES6 Array and Map)

    filter: function(predicate, context) {
      return reify(this, filterFactory(this, predicate, context, false));
    },

    findIndex: function(predicate, context) {
      var entry = this.findEntry(predicate, context);
      return entry ? entry[0] : -1;
    },

    indexOf: function(searchValue) {
      var key = this.toKeyedSeq().keyOf(searchValue);
      return key === undefined ? -1 : key;
    },

    lastIndexOf: function(searchValue) {
      var key = this.toKeyedSeq().reverse().keyOf(searchValue);
      return key === undefined ? -1 : key;

      // var index =
      // return this.toSeq().reverse().indexOf(searchValue);
    },

    reverse: function() {
      return reify(this, reverseFactory(this, false));
    },

    slice: function(begin, end) {
      return reify(this, sliceFactory(this, begin, end, false));
    },

    splice: function(index, removeNum /*, ...values*/) {
      var numArgs = arguments.length;
      removeNum = Math.max(removeNum | 0, 0);
      if (numArgs === 0 || (numArgs === 2 && !removeNum)) {
        return this;
      }
      // If index is negative, it should resolve relative to the size of the
      // collection. However size may be expensive to compute if not cached, so
      // only call count() if the number is in fact negative.
      index = resolveBegin(index, index < 0 ? this.count() : this.size);
      var spliced = this.slice(0, index);
      return reify(
        this,
        numArgs === 1 ?
          spliced :
          spliced.concat(arrCopy(arguments, 2), this.slice(index + removeNum))
      );
    },


    // ### More collection methods

    findLastIndex: function(predicate, context) {
      var key = this.toKeyedSeq().findLastKey(predicate, context);
      return key === undefined ? -1 : key;
    },

    first: function() {
      return this.get(0);
    },

    flatten: function(depth) {
      return reify(this, flattenFactory(this, depth, false));
    },

    get: function(index, notSetValue) {
      index = wrapIndex(this, index);
      return (index < 0 || (this.size === Infinity ||
          (this.size !== undefined && index > this.size))) ?
        notSetValue :
        this.find(function(_, key)  {return key === index}, undefined, notSetValue);
    },

    has: function(index) {
      index = wrapIndex(this, index);
      return index >= 0 && (this.size !== undefined ?
        this.size === Infinity || index < this.size :
        this.indexOf(index) !== -1
      );
    },

    interpose: function(separator) {
      return reify(this, interposeFactory(this, separator));
    },

    interleave: function(/*...iterables*/) {
      var iterables = [this].concat(arrCopy(arguments));
      var zipped = zipWithFactory(this.toSeq(), IndexedSeq.of, iterables);
      var interleaved = zipped.flatten(true);
      if (zipped.size) {
        interleaved.size = zipped.size * iterables.length;
      }
      return reify(this, interleaved);
    },

    last: function() {
      return this.get(-1);
    },

    skipWhile: function(predicate, context) {
      return reify(this, skipWhileFactory(this, predicate, context, false));
    },

    zip: function(/*, ...iterables */) {
      var iterables = [this].concat(arrCopy(arguments));
      return reify(this, zipWithFactory(this, defaultZipper, iterables));
    },

    zipWith: function(zipper/*, ...iterables */) {
      var iterables = arrCopy(arguments);
      iterables[0] = this;
      return reify(this, zipWithFactory(this, zipper, iterables));
    }

  });

  IndexedIterable.prototype[IS_INDEXED_SENTINEL] = true;
  IndexedIterable.prototype[IS_ORDERED_SENTINEL] = true;



  mixin(SetIterable, {

    // ### ES6 Collection methods (ES6 Array and Map)

    get: function(value, notSetValue) {
      return this.has(value) ? value : notSetValue;
    },

    includes: function(value) {
      return this.has(value);
    },


    // ### More sequential methods

    keySeq: function() {
      return this.valueSeq();
    }

  });

  SetIterable.prototype.has = IterablePrototype.includes;


  // Mixin subclasses

  mixin(KeyedSeq, KeyedIterable.prototype);
  mixin(IndexedSeq, IndexedIterable.prototype);
  mixin(SetSeq, SetIterable.prototype);

  mixin(KeyedCollection, KeyedIterable.prototype);
  mixin(IndexedCollection, IndexedIterable.prototype);
  mixin(SetCollection, SetIterable.prototype);


  // #pragma Helper functions

  function keyMapper(v, k) {
    return k;
  }

  function entryMapper(v, k) {
    return [k, v];
  }

  function not(predicate) {
    return function() {
      return !predicate.apply(this, arguments);
    }
  }

  function neg(predicate) {
    return function() {
      return -predicate.apply(this, arguments);
    }
  }

  function quoteString(value) {
    return typeof value === 'string' ? JSON.stringify(value) : value;
  }

  function defaultZipper() {
    return arrCopy(arguments);
  }

  function defaultNegComparator(a, b) {
    return a < b ? 1 : a > b ? -1 : 0;
  }

  function hashIterable(iterable) {
    if (iterable.size === Infinity) {
      return 0;
    }
    var ordered = isOrdered(iterable);
    var keyed = isKeyed(iterable);
    var h = ordered ? 1 : 0;
    var size = iterable.__iterate(
      keyed ?
        ordered ?
          function(v, k)  { h = 31 * h + hashMerge(hash(v), hash(k)) | 0; } :
          function(v, k)  { h = h + hashMerge(hash(v), hash(k)) | 0; } :
        ordered ?
          function(v ) { h = 31 * h + hash(v) | 0; } :
          function(v ) { h = h + hash(v) | 0; }
    );
    return murmurHashOfSize(size, h);
  }

  function murmurHashOfSize(size, h) {
    h = imul(h, 0xCC9E2D51);
    h = imul(h << 15 | h >>> -15, 0x1B873593);
    h = imul(h << 13 | h >>> -13, 5);
    h = (h + 0xE6546B64 | 0) ^ size;
    h = imul(h ^ h >>> 16, 0x85EBCA6B);
    h = imul(h ^ h >>> 13, 0xC2B2AE35);
    h = smi(h ^ h >>> 16);
    return h;
  }

  function hashMerge(a, b) {
    return a ^ b + 0x9E3779B9 + (a << 6) + (a >> 2) | 0; // int
  }

  var Immutable = {

    Iterable: Iterable,

    Seq: Seq,
    Collection: Collection,
    Map: Map,
    OrderedMap: OrderedMap,
    List: List,
    Stack: Stack,
    Set: Set,
    OrderedSet: OrderedSet,

    Record: Record,
    Range: Range,
    Repeat: Repeat,

    is: is,
    fromJS: fromJS

  };

  return Immutable;

}));
});

var draftjsUtils = createCommonjsModule(function (module, exports) {
!function(e,t){module.exports=t(Draft,immutable$1);}("undefined"!=typeof self?self:commonjsGlobal,function(e,t){return function(e){function t(r){if(n[r])return n[r].exports;var o=n[r]={i:r,l:!1,exports:{}};return e[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}var n={};return t.m=e,t.c=n,t.d=function(e,n,r){t.o(e,n)||Object.defineProperty(e,n,{configurable:!1,enumerable:!0,get:r});},t.n=function(e){var n=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(n,"a",n),n},t.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},t.p="",t(t.s=3)}([function(t,n){t.exports=e;},function(e,t,n){function r(e){var t=e.getSelection(),n=e.getCurrentContent(),r=t.getStartKey(),o=t.getEndKey(),i=n.getBlockMap();return i.toSeq().skipUntil(function(e,t){return t===r}).takeUntil(function(e,t){return t===o}).concat([[o,i.get(o)]])}function o(e){return r(e).toList()}function i(e){if(e)return o(e).get(0)}function l(e){if(e){var t=i(e),n=e.getCurrentContent(),r=n.getBlockMap().toSeq().toList(),o=0;if(r.forEach(function(e,n){e.get("key")===t.get("key")&&(o=n-1);}),o>-1)return r.get(o)}}function c(e){return e?e.getCurrentContent().getBlockMap().toList():new v.List}function a(e){var t=o(e);if(!t.some(function(e){return e.type!==t.get(0).type}))return t.get(0).type}function f(e){var t=p.RichUtils.tryToRemoveBlockStyle(e);return t?p.EditorState.push(e,t,"change-block-type"):e}function u(e){var t="",n=e.getSelection(),r=n.getAnchorOffset(),i=n.getFocusOffset(),l=o(e);if(l.size>0){if(n.getIsBackward()){var c=r;r=i,i=c;}for(var a=0;a<l.size;a+=1){var f=0===a?r:0,u=a===l.size-1?i:l.get(a).getText().length;t+=l.get(a).getText().slice(f,u);}}return t}function s(e){var t=e.getCurrentContent(),n=e.getSelection(),r=p.Modifier.removeRange(t,n,"forward"),o=r.getSelectionAfter(),i=r.getBlockForKey(o.getStartKey());return r=p.Modifier.insertText(r,o,"\n",i.getInlineStyleAt(o.getStartOffset()),null),p.EditorState.push(e,r,"insert-fragment")}function g(e){var t=p.Modifier.splitBlock(e.getCurrentContent(),e.getSelection());return f(p.EditorState.push(e,t,"split-block"))}function d(e){var t=e.getCurrentContent().getBlockMap().toList(),n=e.getSelection().merge({anchorKey:t.first().get("key"),anchorOffset:0,focusKey:t.last().get("key"),focusOffset:t.last().getLength()}),r=p.Modifier.removeRange(e.getCurrentContent(),n,"forward");return p.EditorState.push(e,r,"remove-range")}function S(e,t){var n=p.Modifier.setBlockData(e.getCurrentContent(),e.getSelection(),t);return p.EditorState.push(e,n,"change-block-data")}function y(e){var t=new v.Map({}),n=o(e);if(n&&n.size>0)for(var r=0;r<n.size;r+=1){var i=function(e){var r=n.get(e).getData();if(!r||0===r.size)return t=t.clear(),"break";if(0===e)t=r;else if(t.forEach(function(e,n){r.get(n)&&r.get(n)===e||(t=t.delete(n));}),0===t.size)return t=t.clear(),"break"}(r);if("break"===i)break}return t}Object.defineProperty(t,"__esModule",{value:!0}),t.blockRenderMap=void 0,t.getSelectedBlocksMap=r,t.getSelectedBlocksList=o,t.getSelectedBlock=i,t.getBlockBeforeSelectedBlock=l,t.getAllBlocks=c,t.getSelectedBlocksType=a,t.removeSelectedBlocksStyle=f,t.getSelectionText=u,t.addLineBreakRemovingSelection=s,t.insertNewUnstyledBlock=g,t.clearEditorContent=d,t.setBlockData=S,t.getSelectedBlocksMetadata=y;var p=n(0),v=n(6),k=(0, v.Map)({code:{element:"pre"}});t.blockRenderMap=p.DefaultDraftBlockRenderMap.merge(k);},function(e,t,n){function r(e){if(e){var t=e.getType();return "unordered-list-item"===t||"ordered-list-item"===t}return !1}function o(e,t,n){var r=e.getSelection(),o=e.getCurrentContent(),i=o.getBlockMap(),l=(0, c.getSelectedBlocksMap)(e).map(function(e){var r=e.getDepth()+t;return r=Math.max(0,Math.min(r,n)),e.set("depth",r)});return i=i.merge(l),o.merge({blockMap:i,selectionBefore:r,selectionAfter:r})}function i(e,t,n){var r=e.getSelection(),i=void 0;i=r.getIsBackward()?r.getFocusKey():r.getAnchorKey();var c=e.getCurrentContent(),a=c.getBlockForKey(i),f=a.getType();if("unordered-list-item"!==f&&"ordered-list-item"!==f)return e;var u=c.getBlockBefore(i);if(!u)return e;if(u.getType()!==f)return e;var s=a.getDepth();if(1===t&&s===n)return e;var g=Math.min(u.getDepth()+1,n),d=o(e,t,g);return l.EditorState.push(e,d,"adjust-depth")}Object.defineProperty(t,"__esModule",{value:!0}),t.isListBlock=r,t.changeDepth=i;var l=n(0),c=n(1);},function(e,t,n){e.exports=n(4);},function(e,t,n){var r=n(5),o=n(1),i=n(7),l=function(e){return e&&e.__esModule?e:{default:e}}(i),c=n(2);e.exports={getSelectedBlocksMap:o.getSelectedBlocksMap,getSelectedBlocksList:o.getSelectedBlocksList,getSelectedBlock:o.getSelectedBlock,getBlockBeforeSelectedBlock:o.getBlockBeforeSelectedBlock,getAllBlocks:o.getAllBlocks,getSelectedBlocksType:o.getSelectedBlocksType,removeSelectedBlocksStyle:o.removeSelectedBlocksStyle,getSelectionText:o.getSelectionText,addLineBreakRemovingSelection:o.addLineBreakRemovingSelection,insertNewUnstyledBlock:o.insertNewUnstyledBlock,clearEditorContent:o.clearEditorContent,setBlockData:o.setBlockData,getSelectedBlocksMetadata:o.getSelectedBlocksMetadata,blockRenderMap:o.blockRenderMap,getEntityRange:r.getEntityRange,getCustomStyleMap:r.getCustomStyleMap,toggleCustomInlineStyle:r.toggleCustomInlineStyle,getSelectionEntity:r.getSelectionEntity,extractInlineStyle:r.extractInlineStyle,removeAllInlineStyles:r.removeAllInlineStyles,getSelectionInlineStyle:r.getSelectionInlineStyle,getSelectionCustomInlineStyle:r.getSelectionCustomInlineStyle,handleNewLine:l.default,isListBlock:c.isListBlock,changeDepth:c.changeDepth};},function(e,t,n){function r(e,t,n){return t in e?Object.defineProperty(e,t,{value:n,enumerable:!0,configurable:!0,writable:!0}):e[t]=n,e}function o(e){var t=e.getSelection();if(t.isCollapsed()){var n={},r=e.getCurrentInlineStyle().toList().toJS();if(r)return ["BOLD","ITALIC","UNDERLINE","STRIKETHROUGH","CODE","SUPERSCRIPT","SUBSCRIPT"].forEach(function(e){n[e]=r.indexOf(e)>=0;}),n}var o=t.getStartOffset(),i=t.getEndOffset(),l=(0, p.getSelectedBlocksList)(e);if(l.size>0){var c=function(){for(var e={BOLD:!0,ITALIC:!0,UNDERLINE:!0,STRIKETHROUGH:!0,CODE:!0,SUPERSCRIPT:!0,SUBSCRIPT:!0},t=0;t<l.size;t+=1){var n=0===t?o:0,r=t===l.size-1?i:l.get(t).getText().length;n===r&&0===n?(n=1,r=2):n===r&&(n-=1);for(var c=n;c<r;c+=1)!function(n){var r=l.get(t).getInlineStyleAt(n);["BOLD","ITALIC","UNDERLINE","STRIKETHROUGH","CODE","SUPERSCRIPT","SUBSCRIPT"].forEach(function(t){e[t]=e[t]&&r.get(t)===t;});}(c);}return {v:e}}();if("object"===(void 0===c?"undefined":S(c)))return c.v}return {}}function i(e){var t=void 0,n=e.getSelection(),r=n.getStartOffset(),o=n.getEndOffset();r===o&&0===r?o=1:r===o&&(r-=1);for(var i=(0, p.getSelectedBlock)(e),l=r;l<o;l+=1){var c=i.getEntityAt(l);if(!c){t=void 0;break}if(l===r)t=c;else if(t!==c){t=void 0;break}}return t}function l(e,t){var n=(0, p.getSelectedBlock)(e),r=void 0;return n.findEntityRanges(function(e){return e.get("entity")===t},function(e,t){r={start:e,end:t,text:n.get("text").slice(e,t)};}),r}function c(e,t,n){var r=e.getSelection(),o=Object.keys(v[t]).reduce(function(e,t){return y.Modifier.removeInlineStyle(e,r,t)},e.getCurrentContent()),i=y.EditorState.push(e,o,"changeinline-style"),l=e.getCurrentInlineStyle();if(r.isCollapsed()&&(i=l.reduce(function(e,t){return y.RichUtils.toggleInlineStyle(e,t)},i)),"SUPERSCRIPT"===t||"SUBSCRIPT"==t)l.has(n)||(i=y.RichUtils.toggleInlineStyle(i,n));else{var c="bgcolor"===t?"backgroundColor":t;l.has(c+"-"+n)||(i=y.RichUtils.toggleInlineStyle(i,t.toLowerCase()+"-"+n),k(t,c,n));}return i}function a(e){if(e){e.getCurrentContent().getBlockMap().map(function(e){return e.get("characterList")}).toList().flatten().forEach(function(e){e&&0===e.indexOf("color-")?k("color","color",e.substr(6)):e&&0===e.indexOf("bgcolor-")?k("bgcolor","backgroundColor",e.substr(8)):e&&0===e.indexOf("fontsize-")?k("fontSize","fontSize",+e.substr(9)):e&&0===e.indexOf("fontfamily-")&&k("fontFamily","fontFamily",e.substr(11));});}}function f(e,t,n){var r=e.getInlineStyleAt(n).toList(),o=r.filter(function(e){return e.startsWith(t.toLowerCase())});if(o&&o.size>0)return o.get(0)}function u(e,t){var n=e.getCurrentInlineStyle().toList(),r=n.filter(function(e){return e.startsWith(t.toLowerCase())});if(r&&r.size>0)return r.get(0)}function s(e,t){if(e&&t&&t.length>0){var n=function(){var n=e.getSelection(),r={};if(n.isCollapsed())return t.forEach(function(t){r[t]=u(e,t);}),{v:r};var o=n.getStartOffset(),i=n.getEndOffset(),l=(0, p.getSelectedBlocksList)(e);if(l.size>0){for(var c=0;c<l.size;c+=1)!function(e){var n=0===e?o:0,c=e===l.size-1?i:l.get(e).getText().length;n===c&&0===n?(n=1,c=2):n===c&&(n-=1);for(var a=n;a<c;a+=1)!function(o){o===n?t.forEach(function(t){r[t]=f(l.get(e),t,o);}):t.forEach(function(t){r[t]&&r[t]!==f(l.get(e),t,o)&&(r[t]=void 0);});}(a);}(c);return {v:r}}}();if("object"===(void 0===n?"undefined":S(n)))return n.v}return {}}function g(e){var t=e.getCurrentInlineStyle(),n=e.getCurrentContent();return t.forEach(function(t){n=y.Modifier.removeInlineStyle(n,e.getSelection(),t);}),y.EditorState.push(e,n,"change-inline-style")}Object.defineProperty(t,"__esModule",{value:!0}),t.getCustomStyleMap=void 0;var d=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var n=arguments[t];for(var r in n)Object.prototype.hasOwnProperty.call(n,r)&&(e[r]=n[r]);}return e},S="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e};t.getSelectionInlineStyle=o,t.getSelectionEntity=i,t.getEntityRange=l,t.toggleCustomInlineStyle=c,t.extractInlineStyle=a,t.getSelectionCustomInlineStyle=s,t.removeAllInlineStyles=g;var y=n(0),p=n(1),v={color:{},bgcolor:{},fontSize:{},fontFamily:{},CODE:{fontFamily:"monospace",wordWrap:"break-word",background:"#f1f1f1",borderRadius:3,padding:"1px 3px"},SUPERSCRIPT:{fontSize:11,position:"relative",top:-8,display:"inline-flex"},SUBSCRIPT:{fontSize:11,position:"relative",bottom:-8,display:"inline-flex"}},k=function(e,t,n){v[e][e.toLowerCase()+"-"+n]=r({},""+t,n);};t.getCustomStyleMap=function(){return d({},v.color,v.bgcolor,v.fontSize,v.fontFamily,{CODE:v.CODE,SUPERSCRIPT:v.SUPERSCRIPT,SUBSCRIPT:v.SUBSCRIPT})};},function(e,n){e.exports=t;},function(e,t,n){function r(e){var t=e.getSelection();if(t.isCollapsed()){var n=e.getCurrentContent(),r=t.getStartKey(),o=n.getBlockForKey(r);if(!(0, a.isListBlock)(o)&&"unstyled"!==o.getType()&&o.getLength()===t.getStartOffset())return (0, c.insertNewUnstyledBlock)(e);if((0, a.isListBlock)(o)&&0===o.getLength()){var i=o.getDepth();if(0===i)return (0, c.removeSelectedBlocksStyle)(e);if(i>0)return (0, a.changeDepth)(e,-1,i)}}}function o(e){return 13===e.which&&(e.getModifierState("Shift")||e.getModifierState("Alt")||e.getModifierState("Control"))}function i(e,t){if(o(t)){return e.getSelection().isCollapsed()?l.RichUtils.insertSoftNewline(e):(0, c.addLineBreakRemovingSelection)(e)}return r(e)}Object.defineProperty(t,"__esModule",{value:!0}),t.default=i;var l=n(0),c=n(1),a=n(2);}])});
});

unwrapExports(draftjsUtils);
var draftjsUtils_1 = draftjsUtils.draftjsUtils;

var interopRequireDefault = createCommonjsModule(function (module) {
function _interopRequireDefault(obj) {
  return obj && obj.__esModule ? obj : {
    "default": obj
  };
}

module.exports = _interopRequireDefault;
});

unwrapExports(interopRequireDefault);

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

/**
 * Use invariant() to assert state which your program assumes to be true.
 *
 * Provide sprintf-style format (only %s is supported) and arguments
 * to provide information about what broke and what you were
 * expecting.
 *
 * The invariant message will be stripped in production, but the invariant
 * will remain to ensure logic does not differ in production.
 */

var invariant$1 = function(condition, format, a, b, c, d, e, f) {
  if (process.env.NODE_ENV !== 'production') {
    if (format === undefined) {
      throw new Error('invariant requires an error message argument');
    }
  }

  if (!condition) {
    var error;
    if (format === undefined) {
      error = new Error(
        'Minified exception occurred; use the non-minified dev environment ' +
        'for the full error message and additional helpful warnings.'
      );
    } else {
      var args = [a, b, c, d, e, f];
      var argIndex = 0;
      error = new Error(
        format.replace(/%s/g, function() { return args[argIndex++]; })
      );
      error.name = 'Invariant Violation';
    }

    error.framesToPop = 1; // we don't care about invariant's own frame
    throw error;
  }
};

var browser = invariant$1;

function _arrayWithoutHoles(arr) {
  if (Array.isArray(arr)) {
    for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) {
      arr2[i] = arr[i];
    }

    return arr2;
  }
}

var arrayWithoutHoles = _arrayWithoutHoles;

function _iterableToArray(iter) {
  if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
}

var iterableToArray = _iterableToArray;

function _nonIterableSpread() {
  throw new TypeError("Invalid attempt to spread non-iterable instance");
}

var nonIterableSpread = _nonIterableSpread;

function _toConsumableArray(arr) {
  return arrayWithoutHoles(arr) || iterableToArray(arr) || nonIterableSpread();
}

var toConsumableArray = _toConsumableArray;

var updateMutation_1 = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = updateMutation;

function updateMutation(mutation, originalOffset, originalLength, newLength, prefixLength, suffixLength) {
  // three cases we can reasonably adjust - disjoint mutations that
  // happen later on where the offset will need to be changed,
  // mutations that completely contain the new one where we can adjust
  // the length, and mutations that occur partially within the new one.
  var lengthDiff = newLength - originalLength;
  var mutationAfterChange = originalOffset + originalLength <= mutation.offset;

  if (mutationAfterChange) {
    return Object.assign({}, mutation, {
      offset: mutation.offset + lengthDiff
    });
  }

  var mutationContainsChange = originalOffset >= mutation.offset && originalOffset + originalLength <= mutation.offset + mutation.length;

  if (mutationContainsChange) {
    return Object.assign({}, mutation, {
      length: mutation.length + lengthDiff
    });
  }

  var mutationWithinPrefixChange = mutation.offset >= originalOffset && mutation.offset + mutation.length <= originalOffset + originalLength && prefixLength > 0;

  if (mutationWithinPrefixChange) {
    return Object.assign({}, mutation, {
      offset: mutation.offset + prefixLength
    });
  }

  var mutationContainsPrefix = mutation.offset < originalOffset && mutation.offset + mutation.length <= originalOffset + originalLength && mutation.offset + mutation.length > originalOffset && prefixLength > 0;

  if (mutationContainsPrefix) {
    return [Object.assign({}, mutation, {
      length: originalOffset - mutation.offset
    }), Object.assign({}, mutation, {
      offset: originalOffset + prefixLength,
      length: mutation.offset - originalOffset + mutation.length
    })];
  }

  var mutationContainsSuffix = mutation.offset >= originalOffset && mutation.offset + mutation.length > originalOffset + originalLength && originalOffset + originalLength > mutation.offset && suffixLength > 0;

  if (mutationContainsSuffix) {
    return [Object.assign({}, mutation, {
      offset: mutation.offset + prefixLength,
      length: originalOffset + originalLength - mutation.offset
    }), Object.assign({}, mutation, {
      offset: originalOffset + originalLength + prefixLength + suffixLength,
      length: mutation.offset + mutation.length - (originalOffset + originalLength)
    })];
  }

  return mutation;
}
});

unwrapExports(updateMutation_1);

var rangeSort = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _default = function _default(r1, r2) {
  if (r1.offset === r2.offset) {
    return r2.length - r1.length;
  }

  return r1.offset - r2.offset;
};

exports["default"] = _default;
});

unwrapExports(rangeSort);

var encodeBlock = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _toConsumableArray2 = interopRequireDefault(toConsumableArray);

var _updateMutation = interopRequireDefault(updateMutation_1);

var _rangeSort = interopRequireDefault(rangeSort);

var ENTITY_MAP = {
  '&': '&amp;',
  '<': '&lt;',
  '>': '&gt;',
  '"': '&quot;',
  "'": '&#x27;',
  '`': '&#x60;',
  '\n': '<br/>'
};

var _default = function _default(block) {
  var blockText = (0, _toConsumableArray2["default"])(block.text);
  var entities = block.entityRanges.sort(_rangeSort["default"]);
  var styles = block.inlineStyleRanges.sort(_rangeSort["default"]);
  var resultText = '';

  var _loop = function _loop(index) {
    var _char = blockText[index];

    if (ENTITY_MAP[_char] !== undefined) {
      var encoded = ENTITY_MAP[_char];
      var resultIndex = (0, _toConsumableArray2["default"])(resultText).length;
      resultText += encoded;

      var updateForChar = function updateForChar(mutation) {
        return (0, _updateMutation["default"])(mutation, resultIndex, _char.length, encoded.length, 0, 0);
      };

      entities = entities.map(updateForChar);
      styles = styles.map(updateForChar);
    } else {
      resultText += _char;
    }
  };

  for (var index = 0; index < blockText.length; index++) {
    _loop(index);
  }

  return Object.assign({}, block, {
    text: resultText,
    inlineStyleRanges: styles,
    entityRanges: entities
  });
};

exports["default"] = _default;
});

unwrapExports(encodeBlock);

var _typeof_1 = createCommonjsModule(function (module) {
function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    module.exports = _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    module.exports = _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

module.exports = _typeof;
});

var splitReactElement_1 = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = splitReactElement;

var _invariant = interopRequireDefault(browser);

var _react = interopRequireDefault(React);

var _server = interopRequireDefault(server);

// see http://w3c.github.io/html/syntax.html#writing-html-documents-elements
var VOID_TAGS = ['area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source', 'track', 'wbr'];

function splitReactElement(element) {
  if (VOID_TAGS.indexOf(element.type) !== -1) {
    return _server["default"].renderToStaticMarkup(element);
  }

  var tags = _server["default"].renderToStaticMarkup(_react["default"].cloneElement(element, {}, '\r')).split('\r');

  (0, _invariant["default"])(tags.length > 1, "convertToHTML: Element of type ".concat(element.type, " must render children"));
  (0, _invariant["default"])(tags.length < 3, "convertToHTML: Element of type ".concat(element.type, " cannot use carriage return character"));
  return {
    start: tags[0],
    end: tags[1]
  };
}
});

unwrapExports(splitReactElement_1);

var getElementHTML_1 = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = getElementHTML;

var _typeof2 = interopRequireDefault(_typeof_1);

var _invariant = interopRequireDefault(browser);

var _react = interopRequireDefault(React);

var _server = interopRequireDefault(server);

var _splitReactElement = interopRequireDefault(splitReactElement_1);

function hasChildren(element) {
  return _react["default"].isValidElement(element) && _react["default"].Children.count(element.props.children) > 0;
}

function getElementHTML(element) {
  var text = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;

  if (element === undefined || element === null) {
    return element;
  }

  if (typeof element === 'string') {
    return element;
  }

  if (_react["default"].isValidElement(element)) {
    if (hasChildren(element)) {
      return _server["default"].renderToStaticMarkup(element);
    }

    var tags = (0, _splitReactElement["default"])(element);

    if (text !== null && (0, _typeof2["default"])(tags) === 'object') {
      var start = tags.start,
          end = tags.end;
      return start + text + end;
    }

    return tags;
  }

  (0, _invariant["default"])(Object.prototype.hasOwnProperty.call(element, 'start') && Object.prototype.hasOwnProperty.call(element, 'end'), 'convertToHTML: received conversion data without either an HTML string, ReactElement or an object with start/end tags');

  if (text !== null) {
    var _start = element.start,
        _end = element.end;
    return _start + text + _end;
  }

  return element;
}
});

unwrapExports(getElementHTML_1);

var getElementTagLength_1 = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _typeof2 = interopRequireDefault(_typeof_1);

var _react = interopRequireDefault(React);

var _splitReactElement = interopRequireDefault(splitReactElement_1);

var getElementTagLength = function getElementTagLength(element) {
  var type = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'start';

  if (_react["default"].isValidElement(element)) {
    var splitElement = (0, _splitReactElement["default"])(element);

    if (typeof splitElement === 'string') {
      return 0;
    }

    var length = splitElement[type].length;

    var child = _react["default"].Children.toArray(element.props.children)[0];

    return length + (child && _react["default"].isValidElement(child) ? getElementTagLength(child, type) : 0);
  }

  if ((0, _typeof2["default"])(element) === 'object') {
    return element[type] ? element[type].length : 0;
  }

  return 0;
};

var _default = getElementTagLength;
exports["default"] = _default;
});

unwrapExports(getElementTagLength_1);

var blockEntities = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _toConsumableArray2 = interopRequireDefault(toConsumableArray);

var _updateMutation = interopRequireDefault(updateMutation_1);

var _rangeSort = interopRequireDefault(rangeSort);

var _getElementHTML = interopRequireDefault(getElementHTML_1);

var _getElementTagLength = interopRequireDefault(getElementTagLength_1);

var converter = function converter() {
  var originalText = arguments.length > 1 ? arguments[1] : undefined;
  return originalText;
};

var _default = function _default(block, entityMap) {
  var entityConverter = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : converter;
  var resultText = (0, _toConsumableArray2["default"])(block.text);
  var getEntityHTML = entityConverter;

  if (entityConverter.__isMiddleware) {
    getEntityHTML = entityConverter(converter);
  }

  if (Object.prototype.hasOwnProperty.call(block, 'entityRanges') && block.entityRanges.length > 0) {
    var entities = block.entityRanges.sort(_rangeSort["default"]);
    var styles = block.inlineStyleRanges;

    var _loop = function _loop(index) {
      var entityRange = entities[index];
      var entity = entityMap[entityRange.key];
      var originalText = resultText.slice(entityRange.offset, entityRange.offset + entityRange.length).join('');
      var entityHTML = getEntityHTML(entity, originalText);
      var converted = (0, _toConsumableArray2["default"])((0, _getElementHTML["default"])(entityHTML, originalText) || originalText);
      var prefixLength = (0, _getElementTagLength["default"])(entityHTML, 'start');
      var suffixLength = (0, _getElementTagLength["default"])(entityHTML, 'end');

      var updateLaterMutation = function updateLaterMutation(mutation, mutationIndex) {
        if (mutationIndex > index || Object.prototype.hasOwnProperty.call(mutation, 'style')) {
          return (0, _updateMutation["default"])(mutation, entityRange.offset, entityRange.length, converted.length, prefixLength, suffixLength);
        }

        return mutation;
      };

      var updateLaterMutations = function updateLaterMutations(mutationList) {
        return mutationList.reduce(function (acc, mutation, mutationIndex) {
          var updatedMutation = updateLaterMutation(mutation, mutationIndex);

          if (Array.isArray(updatedMutation)) {
            return acc.concat(updatedMutation);
          }

          return acc.concat([updatedMutation]);
        }, []);
      };

      entities = updateLaterMutations(entities);
      styles = updateLaterMutations(styles);
      resultText = [].concat((0, _toConsumableArray2["default"])(resultText.slice(0, entityRange.offset)), (0, _toConsumableArray2["default"])(converted), (0, _toConsumableArray2["default"])(resultText.slice(entityRange.offset + entityRange.length)));
    };

    for (var index = 0; index < entities.length; index++) {
      _loop(index);
    }

    return Object.assign({}, block, {
      text: resultText.join(''),
      inlineStyleRanges: styles,
      entityRanges: entities
    });
  }

  return block;
};

exports["default"] = _default;
});

unwrapExports(blockEntities);

var styleObjectFunction = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _default = function _default(object) {
  return function (style) {
    if (typeof object === 'function') {
      return object(style);
    }

    return object[style];
  };
};

exports["default"] = _default;
});

unwrapExports(styleObjectFunction);

var accumulateFunction = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _default = function _default(newFn, rest) {
  return function () {
    var newResult = newFn.apply(void 0, arguments);

    if (newResult !== undefined && newResult !== null) {
      return newResult;
    }

    return rest.apply(void 0, arguments);
  };
};

exports["default"] = _default;
});

unwrapExports(accumulateFunction);

var defaultInlineHTML_1 = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = defaultInlineHTML;

var _react = interopRequireDefault(React);

function defaultInlineHTML(style) {
  switch (style) {
    case 'BOLD':
      return _react["default"].createElement("strong", null);

    case 'ITALIC':
      return _react["default"].createElement("em", null);

    case 'UNDERLINE':
      return _react["default"].createElement("u", null);

    case 'CODE':
      return _react["default"].createElement("code", null);

    default:
      return {
        start: '',
        end: ''
      };
  }
}
});

unwrapExports(defaultInlineHTML_1);

var blockInlineStyles = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _toConsumableArray2 = interopRequireDefault(toConsumableArray);

var _invariant = interopRequireDefault(browser);

var _styleObjectFunction = interopRequireDefault(styleObjectFunction);

var _accumulateFunction = interopRequireDefault(accumulateFunction);

var _getElementHTML = interopRequireDefault(getElementHTML_1);

var _rangeSort = interopRequireDefault(rangeSort);

var _defaultInlineHTML = interopRequireDefault(defaultInlineHTML_1);

var subtractStyles = function subtractStyles(original, toRemove) {
  return original.filter(function (el) {
    return !toRemove.some(function (elToRemove) {
      return elToRemove.style === el.style;
    });
  });
};

var popEndingStyles = function popEndingStyles(styleStack, endingStyles) {
  return endingStyles.reduceRight(function (stack, style) {
    var styleToRemove = stack[stack.length - 1];
    (0, _invariant["default"])(styleToRemove.style === style.style, "Style ".concat(styleToRemove.style, " to be removed doesn't match expected ").concat(style.style));
    return stack.slice(0, -1);
  }, styleStack);
};

var characterStyles = function characterStyles(offset, ranges) {
  return ranges.filter(function (range) {
    return offset >= range.offset && offset < range.offset + range.length;
  });
};

var rangeIsSubset = function rangeIsSubset(firstRange, secondRange) {
  // returns true if the second range is a subset of the first
  var secondStartWithinFirst = firstRange.offset <= secondRange.offset;
  var secondEndWithinFirst = firstRange.offset + firstRange.length >= secondRange.offset + secondRange.length;
  return secondStartWithinFirst && secondEndWithinFirst;
};

var latestStyleLast = function latestStyleLast(s1, s2) {
  // make sure longer-lasting styles are added first
  var s2endIndex = s2.offset + s2.length;
  var s1endIndex = s1.offset + s1.length;
  return s2endIndex - s1endIndex;
};

var getStylesToReset = function getStylesToReset(remainingStyles, newStyles) {
  var i = 0;

  while (i < remainingStyles.length) {
    if (newStyles.every(rangeIsSubset.bind(null, remainingStyles[i]))) {
      i++;
    } else {
      return remainingStyles.slice(i);
    }
  }

  return [];
};

var appendStartMarkup = function appendStartMarkup(inlineHTML, string, styleRange) {
  return string + (0, _getElementHTML["default"])(inlineHTML(styleRange.style)).start;
};

var prependEndMarkup = function prependEndMarkup(inlineHTML, string, styleRange) {
  return (0, _getElementHTML["default"])(inlineHTML(styleRange.style)).end + string;
};

var defaultCustomInlineHTML = function defaultCustomInlineHTML(next) {
  return function (style) {
    return next(style);
  };
};

defaultCustomInlineHTML.__isMiddleware = true;

var _default = function _default(rawBlock) {
  var customInlineHTML = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : defaultCustomInlineHTML;
  (0, _invariant["default"])(rawBlock !== null && rawBlock !== undefined, 'Expected raw block to be non-null');
  var inlineHTML;

  if (customInlineHTML.__isMiddleware === true) {
    inlineHTML = customInlineHTML(_defaultInlineHTML["default"]);
  } else {
    inlineHTML = (0, _accumulateFunction["default"])((0, _styleObjectFunction["default"])(customInlineHTML), (0, _styleObjectFunction["default"])(_defaultInlineHTML["default"]));
  }

  var result = '';
  var styleStack = [];
  var sortedRanges = rawBlock.inlineStyleRanges.sort(_rangeSort["default"]);
  var originalTextArray = (0, _toConsumableArray2["default"])(rawBlock.text);

  for (var i = 0; i < originalTextArray.length; i++) {
    var styles = characterStyles(i, sortedRanges);
    var endingStyles = subtractStyles(styleStack, styles);
    var newStyles = subtractStyles(styles, styleStack);
    var remainingStyles = subtractStyles(styleStack, endingStyles); // reset styles: look for any already existing styles that will need to
    // end before styles that are being added on this character. to solve this
    // close out those current tags and all nested children,
    // then open new ones nested within the new styles.

    var resetStyles = getStylesToReset(remainingStyles, newStyles);
    var openingStyles = resetStyles.concat(newStyles).sort(latestStyleLast);
    var openingStyleTags = openingStyles.reduce(appendStartMarkup.bind(null, inlineHTML), '');
    var endingStyleTags = endingStyles.concat(resetStyles).reduce(prependEndMarkup.bind(null, inlineHTML), '');
    result += endingStyleTags + openingStyleTags + originalTextArray[i];
    styleStack = popEndingStyles(styleStack, resetStyles.concat(endingStyles));
    styleStack = styleStack.concat(openingStyles);
    (0, _invariant["default"])(styleStack.length === styles.length, "Character ".concat(i, ": ").concat(styleStack.length - styles.length, " styles left on stack that should no longer be there"));
  }

  result = styleStack.reduceRight(function (res, openStyle) {
    return res + (0, _getElementHTML["default"])(inlineHTML(openStyle.style)).end;
  }, result);
  return result;
};

exports["default"] = _default;
});

unwrapExports(blockInlineStyles);

var blockTypeObjectFunction = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _default = function _default(typeObject) {
  return function (block) {
    if (typeof typeObject === 'function') {
      // handle case where typeObject is already a function
      return typeObject(block);
    }

    return typeObject[block.type];
  };
};

exports["default"] = _default;
});

unwrapExports(blockTypeObjectFunction);

var getBlockTags_1 = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = getBlockTags;

var _invariant = interopRequireDefault(browser);

var _react = interopRequireDefault(React);

var _server = interopRequireDefault(server);

var _splitReactElement = interopRequireDefault(splitReactElement_1);

function hasChildren(element) {
  return _react["default"].isValidElement(element) && _react["default"].Children.count(element.props.children) > 0;
}

function getBlockTags(blockHTML) {
  (0, _invariant["default"])(blockHTML !== null && blockHTML !== undefined, 'Expected block HTML value to be non-null');

  if (typeof blockHTML === 'string') {
    return blockHTML;
  }

  if (_react["default"].isValidElement(blockHTML)) {
    if (hasChildren(blockHTML)) {
      return _server["default"].renderToStaticMarkup(blockHTML);
    }

    return (0, _splitReactElement["default"])(blockHTML);
  }

  if (Object.prototype.hasOwnProperty.call(blockHTML, 'element') && _react["default"].isValidElement(blockHTML.element)) {
    return Object.assign({}, blockHTML, (0, _splitReactElement["default"])(blockHTML.element));
  }

  (0, _invariant["default"])(Object.prototype.hasOwnProperty.call(blockHTML, 'start') && Object.prototype.hasOwnProperty.call(blockHTML, 'end'), 'convertToHTML: received block information without either a ReactElement or an object with start/end tags');
  return blockHTML;
}
});

unwrapExports(getBlockTags_1);

var getNestedBlockTags_1 = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = getNestedBlockTags;

var _invariant = interopRequireDefault(browser);

var _react = interopRequireDefault(React);

var _splitReactElement2 = interopRequireDefault(splitReactElement_1);

function getNestedBlockTags(blockHTML) {
  (0, _invariant["default"])(blockHTML !== null && blockHTML !== undefined, 'Expected block HTML value to be non-null');

  if (_react["default"].isValidElement(blockHTML.nest)) {
    var _splitReactElement = (0, _splitReactElement2["default"])(blockHTML.nest),
        start = _splitReactElement.start,
        end = _splitReactElement.end;

    return Object.assign({}, blockHTML, {
      nestStart: start,
      nestEnd: end
    });
  }

  (0, _invariant["default"])(Object.prototype.hasOwnProperty.call(blockHTML, 'nestStart') && Object.prototype.hasOwnProperty.call(blockHTML, 'nestEnd'), 'convertToHTML: received block information without either a ReactElement or an object with start/end tags');
  return blockHTML;
}
});

unwrapExports(getNestedBlockTags_1);

var defaultBlockHTML = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _react = interopRequireDefault(React);

var _default = {
  unstyled: _react["default"].createElement("p", null),
  paragraph: _react["default"].createElement("p", null),
  'header-one': _react["default"].createElement("h1", null),
  'header-two': _react["default"].createElement("h2", null),
  'header-three': _react["default"].createElement("h3", null),
  'header-four': _react["default"].createElement("h4", null),
  'header-five': _react["default"].createElement("h5", null),
  'header-six': _react["default"].createElement("h6", null),
  blockquote: _react["default"].createElement("blockquote", null),
  'unordered-list-item': {
    element: _react["default"].createElement("li", null),
    nest: _react["default"].createElement("ul", null)
  },
  'ordered-list-item': {
    element: _react["default"].createElement("li", null),
    nest: _react["default"].createElement("ol", null)
  },
  media: _react["default"].createElement("figure", null),
  atomic: _react["default"].createElement("figure", null)
};
exports["default"] = _default;
});

unwrapExports(defaultBlockHTML);

var convertToHTML_1 = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _invariant = interopRequireDefault(browser);

var _react = interopRequireDefault(React);

var _server = interopRequireDefault(server);



var _encodeBlock = interopRequireDefault(encodeBlock);

var _blockEntities = interopRequireDefault(blockEntities);

var _blockInlineStyles = interopRequireDefault(blockInlineStyles);

var _accumulateFunction = interopRequireDefault(accumulateFunction);

var _blockTypeObjectFunction = interopRequireDefault(blockTypeObjectFunction);

var _getBlockTags = interopRequireDefault(getBlockTags_1);

var _getNestedBlockTags = interopRequireDefault(getNestedBlockTags_1);

var _defaultBlockHTML = interopRequireDefault(defaultBlockHTML);

// import Immutable from 'immutable'; // eslint-disable-line no-unused-vars
var defaultEntityToHTML = function defaultEntityToHTML(entity, originalText) {
  return originalText;
};

var convertToHTML = function convertToHTML(_ref) {
  var _ref$styleToHTML = _ref.styleToHTML,
      styleToHTML = _ref$styleToHTML === void 0 ? {} : _ref$styleToHTML,
      _ref$blockToHTML = _ref.blockToHTML,
      blockToHTML = _ref$blockToHTML === void 0 ? {} : _ref$blockToHTML,
      _ref$entityToHTML = _ref.entityToHTML,
      entityToHTML = _ref$entityToHTML === void 0 ? defaultEntityToHTML : _ref$entityToHTML;
  return function (contentState) {
    (0, _invariant["default"])(contentState !== null && contentState !== undefined, 'Expected contentState to be non-null');
    var getBlockHTML;

    if (blockToHTML.__isMiddleware === true) {
      getBlockHTML = blockToHTML((0, _blockTypeObjectFunction["default"])(_defaultBlockHTML["default"]));
    } else {
      getBlockHTML = (0, _accumulateFunction["default"])((0, _blockTypeObjectFunction["default"])(blockToHTML), (0, _blockTypeObjectFunction["default"])(_defaultBlockHTML["default"]));
    }

    var rawState = (0, Draft.convertToRaw)(contentState);
    var listStack = [];
    var result = rawState.blocks.map(function (block) {
      var type = block.type,
          depth = block.depth;
      var closeNestTags = '';
      var openNestTags = '';
      var blockHTMLResult = getBlockHTML(block);

      if (!blockHTMLResult) {
        throw new Error("convertToHTML: missing HTML definition for block with type ".concat(block.type));
      }

      if (!blockHTMLResult.nest) {
        // this block can't be nested, so reset all nesting if necessary
        closeNestTags = listStack.reduceRight(function (string, nestedBlock) {
          return string + (0, _getNestedBlockTags["default"])(getBlockHTML(nestedBlock)).nestEnd;
        }, '');
        listStack = [];
      } else {
        while (depth + 1 !== listStack.length || type !== listStack[depth].type) {
          if (depth + 1 === listStack.length) {
            // depth is right but doesn't match type
            var blockToClose = listStack[depth];
            closeNestTags += (0, _getNestedBlockTags["default"])(getBlockHTML(blockToClose)).nestEnd;
            openNestTags += (0, _getNestedBlockTags["default"])(getBlockHTML(block)).nestStart;
            listStack[depth] = block;
          } else if (depth + 1 < listStack.length) {
            var _blockToClose = listStack[listStack.length - 1];
            closeNestTags += (0, _getNestedBlockTags["default"])(getBlockHTML(_blockToClose)).nestEnd;
            listStack = listStack.slice(0, -1);
          } else {
            openNestTags += (0, _getNestedBlockTags["default"])(getBlockHTML(block)).nestStart;
            listStack.push(block);
          }
        }
      }

      var innerHTML = (0, _blockInlineStyles["default"])((0, _blockEntities["default"])((0, _encodeBlock["default"])(block), rawState.entityMap, entityToHTML), styleToHTML);
      var blockHTML = (0, _getBlockTags["default"])(getBlockHTML(block));
      var html;

      if (typeof blockHTML === 'string') {
        html = blockHTML;
      } else {
        html = blockHTML.start + innerHTML + blockHTML.end;
      }

      if (innerHTML.length === 0 && Object.prototype.hasOwnProperty.call(blockHTML, 'empty')) {
        if (_react["default"].isValidElement(blockHTML.empty)) {
          html = _server["default"].renderToStaticMarkup(blockHTML.empty);
        } else {
          html = blockHTML.empty;
        }
      }

      return closeNestTags + openNestTags + html;
    }).join('');
    result = listStack.reduce(function (res, nestBlock) {
      return res + (0, _getNestedBlockTags["default"])(getBlockHTML(nestBlock)).nestEnd;
    }, result);
    return result;
  };
};

var _default = function _default() {
  for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
    args[_key] = arguments[_key];
  }

  if (args.length === 1 && Object.prototype.hasOwnProperty.call(args[0], '_map') && args[0].getBlockMap != null) {
    // skip higher-order function and use defaults
    return convertToHTML({}).apply(void 0, args);
  }

  return convertToHTML.apply(void 0, args);
};

exports["default"] = _default;
});

unwrapExports(convertToHTML_1);

var immutable$2 = createCommonjsModule(function (module, exports) {
/**
 *  Copyright (c) 2014-2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

(function (global, factory) {
   module.exports = factory() ;
}(commonjsGlobal, function () {var SLICE$0 = Array.prototype.slice;

  function createClass(ctor, superClass) {
    if (superClass) {
      ctor.prototype = Object.create(superClass.prototype);
    }
    ctor.prototype.constructor = ctor;
  }

  function Iterable(value) {
      return isIterable(value) ? value : Seq(value);
    }


  createClass(KeyedIterable, Iterable);
    function KeyedIterable(value) {
      return isKeyed(value) ? value : KeyedSeq(value);
    }


  createClass(IndexedIterable, Iterable);
    function IndexedIterable(value) {
      return isIndexed(value) ? value : IndexedSeq(value);
    }


  createClass(SetIterable, Iterable);
    function SetIterable(value) {
      return isIterable(value) && !isAssociative(value) ? value : SetSeq(value);
    }



  function isIterable(maybeIterable) {
    return !!(maybeIterable && maybeIterable[IS_ITERABLE_SENTINEL]);
  }

  function isKeyed(maybeKeyed) {
    return !!(maybeKeyed && maybeKeyed[IS_KEYED_SENTINEL]);
  }

  function isIndexed(maybeIndexed) {
    return !!(maybeIndexed && maybeIndexed[IS_INDEXED_SENTINEL]);
  }

  function isAssociative(maybeAssociative) {
    return isKeyed(maybeAssociative) || isIndexed(maybeAssociative);
  }

  function isOrdered(maybeOrdered) {
    return !!(maybeOrdered && maybeOrdered[IS_ORDERED_SENTINEL]);
  }

  Iterable.isIterable = isIterable;
  Iterable.isKeyed = isKeyed;
  Iterable.isIndexed = isIndexed;
  Iterable.isAssociative = isAssociative;
  Iterable.isOrdered = isOrdered;

  Iterable.Keyed = KeyedIterable;
  Iterable.Indexed = IndexedIterable;
  Iterable.Set = SetIterable;


  var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';
  var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';
  var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';
  var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';

  // Used for setting prototype methods that IE8 chokes on.
  var DELETE = 'delete';

  // Constants describing the size of trie nodes.
  var SHIFT = 5; // Resulted in best performance after ______?
  var SIZE = 1 << SHIFT;
  var MASK = SIZE - 1;

  // A consistent shared value representing "not set" which equals nothing other
  // than itself, and nothing that could be provided externally.
  var NOT_SET = {};

  // Boolean references, Rough equivalent of `bool &`.
  var CHANGE_LENGTH = { value: false };
  var DID_ALTER = { value: false };

  function MakeRef(ref) {
    ref.value = false;
    return ref;
  }

  function SetRef(ref) {
    ref && (ref.value = true);
  }

  // A function which returns a value representing an "owner" for transient writes
  // to tries. The return value will only ever equal itself, and will not equal
  // the return of any subsequent call of this function.
  function OwnerID() {}

  // http://jsperf.com/copy-array-inline
  function arrCopy(arr, offset) {
    offset = offset || 0;
    var len = Math.max(0, arr.length - offset);
    var newArr = new Array(len);
    for (var ii = 0; ii < len; ii++) {
      newArr[ii] = arr[ii + offset];
    }
    return newArr;
  }

  function ensureSize(iter) {
    if (iter.size === undefined) {
      iter.size = iter.__iterate(returnTrue);
    }
    return iter.size;
  }

  function wrapIndex(iter, index) {
    // This implements "is array index" which the ECMAString spec defines as:
    //
    //     A String property name P is an array index if and only if
    //     ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal
    //     to 2^32−1.
    //
    // http://www.ecma-international.org/ecma-262/6.0/#sec-array-exotic-objects
    if (typeof index !== 'number') {
      var uint32Index = index >>> 0; // N >>> 0 is shorthand for ToUint32
      if ('' + uint32Index !== index || uint32Index === 4294967295) {
        return NaN;
      }
      index = uint32Index;
    }
    return index < 0 ? ensureSize(iter) + index : index;
  }

  function returnTrue() {
    return true;
  }

  function wholeSlice(begin, end, size) {
    return (begin === 0 || (size !== undefined && begin <= -size)) &&
      (end === undefined || (size !== undefined && end >= size));
  }

  function resolveBegin(begin, size) {
    return resolveIndex(begin, size, 0);
  }

  function resolveEnd(end, size) {
    return resolveIndex(end, size, size);
  }

  function resolveIndex(index, size, defaultIndex) {
    return index === undefined ?
      defaultIndex :
      index < 0 ?
        Math.max(0, size + index) :
        size === undefined ?
          index :
          Math.min(size, index);
  }

  /* global Symbol */

  var ITERATE_KEYS = 0;
  var ITERATE_VALUES = 1;
  var ITERATE_ENTRIES = 2;

  var REAL_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
  var FAUX_ITERATOR_SYMBOL = '@@iterator';

  var ITERATOR_SYMBOL = REAL_ITERATOR_SYMBOL || FAUX_ITERATOR_SYMBOL;


  function Iterator(next) {
      this.next = next;
    }

    Iterator.prototype.toString = function() {
      return '[Iterator]';
    };


  Iterator.KEYS = ITERATE_KEYS;
  Iterator.VALUES = ITERATE_VALUES;
  Iterator.ENTRIES = ITERATE_ENTRIES;

  Iterator.prototype.inspect =
  Iterator.prototype.toSource = function () { return this.toString(); };
  Iterator.prototype[ITERATOR_SYMBOL] = function () {
    return this;
  };


  function iteratorValue(type, k, v, iteratorResult) {
    var value = type === 0 ? k : type === 1 ? v : [k, v];
    iteratorResult ? (iteratorResult.value = value) : (iteratorResult = {
      value: value, done: false
    });
    return iteratorResult;
  }

  function iteratorDone() {
    return { value: undefined, done: true };
  }

  function hasIterator(maybeIterable) {
    return !!getIteratorFn(maybeIterable);
  }

  function isIterator(maybeIterator) {
    return maybeIterator && typeof maybeIterator.next === 'function';
  }

  function getIterator(iterable) {
    var iteratorFn = getIteratorFn(iterable);
    return iteratorFn && iteratorFn.call(iterable);
  }

  function getIteratorFn(iterable) {
    var iteratorFn = iterable && (
      (REAL_ITERATOR_SYMBOL && iterable[REAL_ITERATOR_SYMBOL]) ||
      iterable[FAUX_ITERATOR_SYMBOL]
    );
    if (typeof iteratorFn === 'function') {
      return iteratorFn;
    }
  }

  function isArrayLike(value) {
    return value && typeof value.length === 'number';
  }

  createClass(Seq, Iterable);
    function Seq(value) {
      return value === null || value === undefined ? emptySequence() :
        isIterable(value) ? value.toSeq() : seqFromValue(value);
    }

    Seq.of = function(/*...values*/) {
      return Seq(arguments);
    };

    Seq.prototype.toSeq = function() {
      return this;
    };

    Seq.prototype.toString = function() {
      return this.__toString('Seq {', '}');
    };

    Seq.prototype.cacheResult = function() {
      if (!this._cache && this.__iterateUncached) {
        this._cache = this.entrySeq().toArray();
        this.size = this._cache.length;
      }
      return this;
    };

    // abstract __iterateUncached(fn, reverse)

    Seq.prototype.__iterate = function(fn, reverse) {
      return seqIterate(this, fn, reverse, true);
    };

    // abstract __iteratorUncached(type, reverse)

    Seq.prototype.__iterator = function(type, reverse) {
      return seqIterator(this, type, reverse, true);
    };



  createClass(KeyedSeq, Seq);
    function KeyedSeq(value) {
      return value === null || value === undefined ?
        emptySequence().toKeyedSeq() :
        isIterable(value) ?
          (isKeyed(value) ? value.toSeq() : value.fromEntrySeq()) :
          keyedSeqFromValue(value);
    }

    KeyedSeq.prototype.toKeyedSeq = function() {
      return this;
    };



  createClass(IndexedSeq, Seq);
    function IndexedSeq(value) {
      return value === null || value === undefined ? emptySequence() :
        !isIterable(value) ? indexedSeqFromValue(value) :
        isKeyed(value) ? value.entrySeq() : value.toIndexedSeq();
    }

    IndexedSeq.of = function(/*...values*/) {
      return IndexedSeq(arguments);
    };

    IndexedSeq.prototype.toIndexedSeq = function() {
      return this;
    };

    IndexedSeq.prototype.toString = function() {
      return this.__toString('Seq [', ']');
    };

    IndexedSeq.prototype.__iterate = function(fn, reverse) {
      return seqIterate(this, fn, reverse, false);
    };

    IndexedSeq.prototype.__iterator = function(type, reverse) {
      return seqIterator(this, type, reverse, false);
    };



  createClass(SetSeq, Seq);
    function SetSeq(value) {
      return (
        value === null || value === undefined ? emptySequence() :
        !isIterable(value) ? indexedSeqFromValue(value) :
        isKeyed(value) ? value.entrySeq() : value
      ).toSetSeq();
    }

    SetSeq.of = function(/*...values*/) {
      return SetSeq(arguments);
    };

    SetSeq.prototype.toSetSeq = function() {
      return this;
    };



  Seq.isSeq = isSeq;
  Seq.Keyed = KeyedSeq;
  Seq.Set = SetSeq;
  Seq.Indexed = IndexedSeq;

  var IS_SEQ_SENTINEL = '@@__IMMUTABLE_SEQ__@@';

  Seq.prototype[IS_SEQ_SENTINEL] = true;



  createClass(ArraySeq, IndexedSeq);
    function ArraySeq(array) {
      this._array = array;
      this.size = array.length;
    }

    ArraySeq.prototype.get = function(index, notSetValue) {
      return this.has(index) ? this._array[wrapIndex(this, index)] : notSetValue;
    };

    ArraySeq.prototype.__iterate = function(fn, reverse) {
      var array = this._array;
      var maxIndex = array.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        if (fn(array[reverse ? maxIndex - ii : ii], ii, this) === false) {
          return ii + 1;
        }
      }
      return ii;
    };

    ArraySeq.prototype.__iterator = function(type, reverse) {
      var array = this._array;
      var maxIndex = array.length - 1;
      var ii = 0;
      return new Iterator(function() 
        {return ii > maxIndex ?
          iteratorDone() :
          iteratorValue(type, ii, array[reverse ? maxIndex - ii++ : ii++])}
      );
    };



  createClass(ObjectSeq, KeyedSeq);
    function ObjectSeq(object) {
      var keys = Object.keys(object);
      this._object = object;
      this._keys = keys;
      this.size = keys.length;
    }

    ObjectSeq.prototype.get = function(key, notSetValue) {
      if (notSetValue !== undefined && !this.has(key)) {
        return notSetValue;
      }
      return this._object[key];
    };

    ObjectSeq.prototype.has = function(key) {
      return this._object.hasOwnProperty(key);
    };

    ObjectSeq.prototype.__iterate = function(fn, reverse) {
      var object = this._object;
      var keys = this._keys;
      var maxIndex = keys.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        var key = keys[reverse ? maxIndex - ii : ii];
        if (fn(object[key], key, this) === false) {
          return ii + 1;
        }
      }
      return ii;
    };

    ObjectSeq.prototype.__iterator = function(type, reverse) {
      var object = this._object;
      var keys = this._keys;
      var maxIndex = keys.length - 1;
      var ii = 0;
      return new Iterator(function()  {
        var key = keys[reverse ? maxIndex - ii : ii];
        return ii++ > maxIndex ?
          iteratorDone() :
          iteratorValue(type, key, object[key]);
      });
    };

  ObjectSeq.prototype[IS_ORDERED_SENTINEL] = true;


  createClass(IterableSeq, IndexedSeq);
    function IterableSeq(iterable) {
      this._iterable = iterable;
      this.size = iterable.length || iterable.size;
    }

    IterableSeq.prototype.__iterateUncached = function(fn, reverse) {
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterable = this._iterable;
      var iterator = getIterator(iterable);
      var iterations = 0;
      if (isIterator(iterator)) {
        var step;
        while (!(step = iterator.next()).done) {
          if (fn(step.value, iterations++, this) === false) {
            break;
          }
        }
      }
      return iterations;
    };

    IterableSeq.prototype.__iteratorUncached = function(type, reverse) {
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterable = this._iterable;
      var iterator = getIterator(iterable);
      if (!isIterator(iterator)) {
        return new Iterator(iteratorDone);
      }
      var iterations = 0;
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step : iteratorValue(type, iterations++, step.value);
      });
    };



  createClass(IteratorSeq, IndexedSeq);
    function IteratorSeq(iterator) {
      this._iterator = iterator;
      this._iteratorCache = [];
    }

    IteratorSeq.prototype.__iterateUncached = function(fn, reverse) {
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterator = this._iterator;
      var cache = this._iteratorCache;
      var iterations = 0;
      while (iterations < cache.length) {
        if (fn(cache[iterations], iterations++, this) === false) {
          return iterations;
        }
      }
      var step;
      while (!(step = iterator.next()).done) {
        var val = step.value;
        cache[iterations] = val;
        if (fn(val, iterations++, this) === false) {
          break;
        }
      }
      return iterations;
    };

    IteratorSeq.prototype.__iteratorUncached = function(type, reverse) {
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = this._iterator;
      var cache = this._iteratorCache;
      var iterations = 0;
      return new Iterator(function()  {
        if (iterations >= cache.length) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          cache[iterations] = step.value;
        }
        return iteratorValue(type, iterations, cache[iterations++]);
      });
    };




  // # pragma Helper functions

  function isSeq(maybeSeq) {
    return !!(maybeSeq && maybeSeq[IS_SEQ_SENTINEL]);
  }

  var EMPTY_SEQ;

  function emptySequence() {
    return EMPTY_SEQ || (EMPTY_SEQ = new ArraySeq([]));
  }

  function keyedSeqFromValue(value) {
    var seq =
      Array.isArray(value) ? new ArraySeq(value).fromEntrySeq() :
      isIterator(value) ? new IteratorSeq(value).fromEntrySeq() :
      hasIterator(value) ? new IterableSeq(value).fromEntrySeq() :
      typeof value === 'object' ? new ObjectSeq(value) :
      undefined;
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of [k, v] entries, '+
        'or keyed object: ' + value
      );
    }
    return seq;
  }

  function indexedSeqFromValue(value) {
    var seq = maybeIndexedSeqFromValue(value);
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of values: ' + value
      );
    }
    return seq;
  }

  function seqFromValue(value) {
    var seq = maybeIndexedSeqFromValue(value) ||
      (typeof value === 'object' && new ObjectSeq(value));
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of values, or keyed object: ' + value
      );
    }
    return seq;
  }

  function maybeIndexedSeqFromValue(value) {
    return (
      isArrayLike(value) ? new ArraySeq(value) :
      isIterator(value) ? new IteratorSeq(value) :
      hasIterator(value) ? new IterableSeq(value) :
      undefined
    );
  }

  function seqIterate(seq, fn, reverse, useKeys) {
    var cache = seq._cache;
    if (cache) {
      var maxIndex = cache.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        var entry = cache[reverse ? maxIndex - ii : ii];
        if (fn(entry[1], useKeys ? entry[0] : ii, seq) === false) {
          return ii + 1;
        }
      }
      return ii;
    }
    return seq.__iterateUncached(fn, reverse);
  }

  function seqIterator(seq, type, reverse, useKeys) {
    var cache = seq._cache;
    if (cache) {
      var maxIndex = cache.length - 1;
      var ii = 0;
      return new Iterator(function()  {
        var entry = cache[reverse ? maxIndex - ii : ii];
        return ii++ > maxIndex ?
          iteratorDone() :
          iteratorValue(type, useKeys ? entry[0] : ii - 1, entry[1]);
      });
    }
    return seq.__iteratorUncached(type, reverse);
  }

  function fromJS(json, converter) {
    return converter ?
      fromJSWith(converter, json, '', {'': json}) :
      fromJSDefault(json);
  }

  function fromJSWith(converter, json, key, parentJSON) {
    if (Array.isArray(json)) {
      return converter.call(parentJSON, key, IndexedSeq(json).map(function(v, k)  {return fromJSWith(converter, v, k, json)}));
    }
    if (isPlainObj(json)) {
      return converter.call(parentJSON, key, KeyedSeq(json).map(function(v, k)  {return fromJSWith(converter, v, k, json)}));
    }
    return json;
  }

  function fromJSDefault(json) {
    if (Array.isArray(json)) {
      return IndexedSeq(json).map(fromJSDefault).toList();
    }
    if (isPlainObj(json)) {
      return KeyedSeq(json).map(fromJSDefault).toMap();
    }
    return json;
  }

  function isPlainObj(value) {
    return value && (value.constructor === Object || value.constructor === undefined);
  }

  /**
   * An extension of the "same-value" algorithm as [described for use by ES6 Map
   * and Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Key_equality)
   *
   * NaN is considered the same as NaN, however -0 and 0 are considered the same
   * value, which is different from the algorithm described by
   * [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is).
   *
   * This is extended further to allow Objects to describe the values they
   * represent, by way of `valueOf` or `equals` (and `hashCode`).
   *
   * Note: because of this extension, the key equality of Immutable.Map and the
   * value equality of Immutable.Set will differ from ES6 Map and Set.
   *
   * ### Defining custom values
   *
   * The easiest way to describe the value an object represents is by implementing
   * `valueOf`. For example, `Date` represents a value by returning a unix
   * timestamp for `valueOf`:
   *
   *     var date1 = new Date(1234567890000); // Fri Feb 13 2009 ...
   *     var date2 = new Date(1234567890000);
   *     date1.valueOf(); // 1234567890000
   *     assert( date1 !== date2 );
   *     assert( Immutable.is( date1, date2 ) );
   *
   * Note: overriding `valueOf` may have other implications if you use this object
   * where JavaScript expects a primitive, such as implicit string coercion.
   *
   * For more complex types, especially collections, implementing `valueOf` may
   * not be performant. An alternative is to implement `equals` and `hashCode`.
   *
   * `equals` takes another object, presumably of similar type, and returns true
   * if the it is equal. Equality is symmetrical, so the same result should be
   * returned if this and the argument are flipped.
   *
   *     assert( a.equals(b) === b.equals(a) );
   *
   * `hashCode` returns a 32bit integer number representing the object which will
   * be used to determine how to store the value object in a Map or Set. You must
   * provide both or neither methods, one must not exist without the other.
   *
   * Also, an important relationship between these methods must be upheld: if two
   * values are equal, they *must* return the same hashCode. If the values are not
   * equal, they might have the same hashCode; this is called a hash collision,
   * and while undesirable for performance reasons, it is acceptable.
   *
   *     if (a.equals(b)) {
   *       assert( a.hashCode() === b.hashCode() );
   *     }
   *
   * All Immutable collections implement `equals` and `hashCode`.
   *
   */
  function is(valueA, valueB) {
    if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
      return true;
    }
    if (!valueA || !valueB) {
      return false;
    }
    if (typeof valueA.valueOf === 'function' &&
        typeof valueB.valueOf === 'function') {
      valueA = valueA.valueOf();
      valueB = valueB.valueOf();
      if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
        return true;
      }
      if (!valueA || !valueB) {
        return false;
      }
    }
    if (typeof valueA.equals === 'function' &&
        typeof valueB.equals === 'function' &&
        valueA.equals(valueB)) {
      return true;
    }
    return false;
  }

  function deepEqual(a, b) {
    if (a === b) {
      return true;
    }

    if (
      !isIterable(b) ||
      a.size !== undefined && b.size !== undefined && a.size !== b.size ||
      a.__hash !== undefined && b.__hash !== undefined && a.__hash !== b.__hash ||
      isKeyed(a) !== isKeyed(b) ||
      isIndexed(a) !== isIndexed(b) ||
      isOrdered(a) !== isOrdered(b)
    ) {
      return false;
    }

    if (a.size === 0 && b.size === 0) {
      return true;
    }

    var notAssociative = !isAssociative(a);

    if (isOrdered(a)) {
      var entries = a.entries();
      return b.every(function(v, k)  {
        var entry = entries.next().value;
        return entry && is(entry[1], v) && (notAssociative || is(entry[0], k));
      }) && entries.next().done;
    }

    var flipped = false;

    if (a.size === undefined) {
      if (b.size === undefined) {
        if (typeof a.cacheResult === 'function') {
          a.cacheResult();
        }
      } else {
        flipped = true;
        var _ = a;
        a = b;
        b = _;
      }
    }

    var allEqual = true;
    var bSize = b.__iterate(function(v, k)  {
      if (notAssociative ? !a.has(v) :
          flipped ? !is(v, a.get(k, NOT_SET)) : !is(a.get(k, NOT_SET), v)) {
        allEqual = false;
        return false;
      }
    });

    return allEqual && a.size === bSize;
  }

  createClass(Repeat, IndexedSeq);

    function Repeat(value, times) {
      if (!(this instanceof Repeat)) {
        return new Repeat(value, times);
      }
      this._value = value;
      this.size = times === undefined ? Infinity : Math.max(0, times);
      if (this.size === 0) {
        if (EMPTY_REPEAT) {
          return EMPTY_REPEAT;
        }
        EMPTY_REPEAT = this;
      }
    }

    Repeat.prototype.toString = function() {
      if (this.size === 0) {
        return 'Repeat []';
      }
      return 'Repeat [ ' + this._value + ' ' + this.size + ' times ]';
    };

    Repeat.prototype.get = function(index, notSetValue) {
      return this.has(index) ? this._value : notSetValue;
    };

    Repeat.prototype.includes = function(searchValue) {
      return is(this._value, searchValue);
    };

    Repeat.prototype.slice = function(begin, end) {
      var size = this.size;
      return wholeSlice(begin, end, size) ? this :
        new Repeat(this._value, resolveEnd(end, size) - resolveBegin(begin, size));
    };

    Repeat.prototype.reverse = function() {
      return this;
    };

    Repeat.prototype.indexOf = function(searchValue) {
      if (is(this._value, searchValue)) {
        return 0;
      }
      return -1;
    };

    Repeat.prototype.lastIndexOf = function(searchValue) {
      if (is(this._value, searchValue)) {
        return this.size;
      }
      return -1;
    };

    Repeat.prototype.__iterate = function(fn, reverse) {
      for (var ii = 0; ii < this.size; ii++) {
        if (fn(this._value, ii, this) === false) {
          return ii + 1;
        }
      }
      return ii;
    };

    Repeat.prototype.__iterator = function(type, reverse) {var this$0 = this;
      var ii = 0;
      return new Iterator(function() 
        {return ii < this$0.size ? iteratorValue(type, ii++, this$0._value) : iteratorDone()}
      );
    };

    Repeat.prototype.equals = function(other) {
      return other instanceof Repeat ?
        is(this._value, other._value) :
        deepEqual(other);
    };


  var EMPTY_REPEAT;

  function invariant(condition, error) {
    if (!condition) throw new Error(error);
  }

  createClass(Range, IndexedSeq);

    function Range(start, end, step) {
      if (!(this instanceof Range)) {
        return new Range(start, end, step);
      }
      invariant(step !== 0, 'Cannot step a Range by 0');
      start = start || 0;
      if (end === undefined) {
        end = Infinity;
      }
      step = step === undefined ? 1 : Math.abs(step);
      if (end < start) {
        step = -step;
      }
      this._start = start;
      this._end = end;
      this._step = step;
      this.size = Math.max(0, Math.ceil((end - start) / step - 1) + 1);
      if (this.size === 0) {
        if (EMPTY_RANGE) {
          return EMPTY_RANGE;
        }
        EMPTY_RANGE = this;
      }
    }

    Range.prototype.toString = function() {
      if (this.size === 0) {
        return 'Range []';
      }
      return 'Range [ ' +
        this._start + '...' + this._end +
        (this._step > 1 ? ' by ' + this._step : '') +
      ' ]';
    };

    Range.prototype.get = function(index, notSetValue) {
      return this.has(index) ?
        this._start + wrapIndex(this, index) * this._step :
        notSetValue;
    };

    Range.prototype.includes = function(searchValue) {
      var possibleIndex = (searchValue - this._start) / this._step;
      return possibleIndex >= 0 &&
        possibleIndex < this.size &&
        possibleIndex === Math.floor(possibleIndex);
    };

    Range.prototype.slice = function(begin, end) {
      if (wholeSlice(begin, end, this.size)) {
        return this;
      }
      begin = resolveBegin(begin, this.size);
      end = resolveEnd(end, this.size);
      if (end <= begin) {
        return new Range(0, 0);
      }
      return new Range(this.get(begin, this._end), this.get(end, this._end), this._step);
    };

    Range.prototype.indexOf = function(searchValue) {
      var offsetValue = searchValue - this._start;
      if (offsetValue % this._step === 0) {
        var index = offsetValue / this._step;
        if (index >= 0 && index < this.size) {
          return index
        }
      }
      return -1;
    };

    Range.prototype.lastIndexOf = function(searchValue) {
      return this.indexOf(searchValue);
    };

    Range.prototype.__iterate = function(fn, reverse) {
      var maxIndex = this.size - 1;
      var step = this._step;
      var value = reverse ? this._start + maxIndex * step : this._start;
      for (var ii = 0; ii <= maxIndex; ii++) {
        if (fn(value, ii, this) === false) {
          return ii + 1;
        }
        value += reverse ? -step : step;
      }
      return ii;
    };

    Range.prototype.__iterator = function(type, reverse) {
      var maxIndex = this.size - 1;
      var step = this._step;
      var value = reverse ? this._start + maxIndex * step : this._start;
      var ii = 0;
      return new Iterator(function()  {
        var v = value;
        value += reverse ? -step : step;
        return ii > maxIndex ? iteratorDone() : iteratorValue(type, ii++, v);
      });
    };

    Range.prototype.equals = function(other) {
      return other instanceof Range ?
        this._start === other._start &&
        this._end === other._end &&
        this._step === other._step :
        deepEqual(this, other);
    };


  var EMPTY_RANGE;

  createClass(Collection, Iterable);
    function Collection() {
      throw TypeError('Abstract');
    }


  createClass(KeyedCollection, Collection);function KeyedCollection() {}

  createClass(IndexedCollection, Collection);function IndexedCollection() {}

  createClass(SetCollection, Collection);function SetCollection() {}


  Collection.Keyed = KeyedCollection;
  Collection.Indexed = IndexedCollection;
  Collection.Set = SetCollection;

  var imul =
    typeof Math.imul === 'function' && Math.imul(0xffffffff, 2) === -2 ?
    Math.imul :
    function imul(a, b) {
      a = a | 0; // int
      b = b | 0; // int
      var c = a & 0xffff;
      var d = b & 0xffff;
      // Shift by 0 fixes the sign on the high part.
      return (c * d) + ((((a >>> 16) * d + c * (b >>> 16)) << 16) >>> 0) | 0; // int
    };

  // v8 has an optimization for storing 31-bit signed numbers.
  // Values which have either 00 or 11 as the high order bits qualify.
  // This function drops the highest order bit in a signed number, maintaining
  // the sign bit.
  function smi(i32) {
    return ((i32 >>> 1) & 0x40000000) | (i32 & 0xBFFFFFFF);
  }

  function hash(o) {
    if (o === false || o === null || o === undefined) {
      return 0;
    }
    if (typeof o.valueOf === 'function') {
      o = o.valueOf();
      if (o === false || o === null || o === undefined) {
        return 0;
      }
    }
    if (o === true) {
      return 1;
    }
    var type = typeof o;
    if (type === 'number') {
      var h = o | 0;
      if (h !== o) {
        h ^= o * 0xFFFFFFFF;
      }
      while (o > 0xFFFFFFFF) {
        o /= 0xFFFFFFFF;
        h ^= o;
      }
      return smi(h);
    }
    if (type === 'string') {
      return o.length > STRING_HASH_CACHE_MIN_STRLEN ? cachedHashString(o) : hashString(o);
    }
    if (typeof o.hashCode === 'function') {
      return o.hashCode();
    }
    if (type === 'object') {
      return hashJSObj(o);
    }
    if (typeof o.toString === 'function') {
      return hashString(o.toString());
    }
    throw new Error('Value type ' + type + ' cannot be hashed.');
  }

  function cachedHashString(string) {
    var hash = stringHashCache[string];
    if (hash === undefined) {
      hash = hashString(string);
      if (STRING_HASH_CACHE_SIZE === STRING_HASH_CACHE_MAX_SIZE) {
        STRING_HASH_CACHE_SIZE = 0;
        stringHashCache = {};
      }
      STRING_HASH_CACHE_SIZE++;
      stringHashCache[string] = hash;
    }
    return hash;
  }

  // http://jsperf.com/hashing-strings
  function hashString(string) {
    // This is the hash from JVM
    // The hash code for a string is computed as
    // s[0] * 31 ^ (n - 1) + s[1] * 31 ^ (n - 2) + ... + s[n - 1],
    // where s[i] is the ith character of the string and n is the length of
    // the string. We "mod" the result to make it between 0 (inclusive) and 2^31
    // (exclusive) by dropping high bits.
    var hash = 0;
    for (var ii = 0; ii < string.length; ii++) {
      hash = 31 * hash + string.charCodeAt(ii) | 0;
    }
    return smi(hash);
  }

  function hashJSObj(obj) {
    var hash;
    if (usingWeakMap) {
      hash = weakMap.get(obj);
      if (hash !== undefined) {
        return hash;
      }
    }

    hash = obj[UID_HASH_KEY];
    if (hash !== undefined) {
      return hash;
    }

    if (!canDefineProperty) {
      hash = obj.propertyIsEnumerable && obj.propertyIsEnumerable[UID_HASH_KEY];
      if (hash !== undefined) {
        return hash;
      }

      hash = getIENodeHash(obj);
      if (hash !== undefined) {
        return hash;
      }
    }

    hash = ++objHashUID;
    if (objHashUID & 0x40000000) {
      objHashUID = 0;
    }

    if (usingWeakMap) {
      weakMap.set(obj, hash);
    } else if (isExtensible !== undefined && isExtensible(obj) === false) {
      throw new Error('Non-extensible objects are not allowed as keys.');
    } else if (canDefineProperty) {
      Object.defineProperty(obj, UID_HASH_KEY, {
        'enumerable': false,
        'configurable': false,
        'writable': false,
        'value': hash
      });
    } else if (obj.propertyIsEnumerable !== undefined &&
               obj.propertyIsEnumerable === obj.constructor.prototype.propertyIsEnumerable) {
      // Since we can't define a non-enumerable property on the object
      // we'll hijack one of the less-used non-enumerable properties to
      // save our hash on it. Since this is a function it will not show up in
      // `JSON.stringify` which is what we want.
      obj.propertyIsEnumerable = function() {
        return this.constructor.prototype.propertyIsEnumerable.apply(this, arguments);
      };
      obj.propertyIsEnumerable[UID_HASH_KEY] = hash;
    } else if (obj.nodeType !== undefined) {
      // At this point we couldn't get the IE `uniqueID` to use as a hash
      // and we couldn't use a non-enumerable property to exploit the
      // dontEnum bug so we simply add the `UID_HASH_KEY` on the node
      // itself.
      obj[UID_HASH_KEY] = hash;
    } else {
      throw new Error('Unable to set a non-enumerable property on object.');
    }

    return hash;
  }

  // Get references to ES5 object methods.
  var isExtensible = Object.isExtensible;

  // True if Object.defineProperty works as expected. IE8 fails this test.
  var canDefineProperty = (function() {
    try {
      Object.defineProperty({}, '@', {});
      return true;
    } catch (e) {
      return false;
    }
  }());

  // IE has a `uniqueID` property on DOM nodes. We can construct the hash from it
  // and avoid memory leaks from the IE cloneNode bug.
  function getIENodeHash(node) {
    if (node && node.nodeType > 0) {
      switch (node.nodeType) {
        case 1: // Element
          return node.uniqueID;
        case 9: // Document
          return node.documentElement && node.documentElement.uniqueID;
      }
    }
  }

  // If possible, use a WeakMap.
  var usingWeakMap = typeof WeakMap === 'function';
  var weakMap;
  if (usingWeakMap) {
    weakMap = new WeakMap();
  }

  var objHashUID = 0;

  var UID_HASH_KEY = '__immutablehash__';
  if (typeof Symbol === 'function') {
    UID_HASH_KEY = Symbol(UID_HASH_KEY);
  }

  var STRING_HASH_CACHE_MIN_STRLEN = 16;
  var STRING_HASH_CACHE_MAX_SIZE = 255;
  var STRING_HASH_CACHE_SIZE = 0;
  var stringHashCache = {};

  function assertNotInfinite(size) {
    invariant(
      size !== Infinity,
      'Cannot perform this action with an infinite size.'
    );
  }

  createClass(Map, KeyedCollection);

    // @pragma Construction

    function Map(value) {
      return value === null || value === undefined ? emptyMap() :
        isMap(value) && !isOrdered(value) ? value :
        emptyMap().withMutations(function(map ) {
          var iter = KeyedIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v, k)  {return map.set(k, v)});
        });
    }

    Map.prototype.toString = function() {
      return this.__toString('Map {', '}');
    };

    // @pragma Access

    Map.prototype.get = function(k, notSetValue) {
      return this._root ?
        this._root.get(0, undefined, k, notSetValue) :
        notSetValue;
    };

    // @pragma Modification

    Map.prototype.set = function(k, v) {
      return updateMap(this, k, v);
    };

    Map.prototype.setIn = function(keyPath, v) {
      return this.updateIn(keyPath, NOT_SET, function()  {return v});
    };

    Map.prototype.remove = function(k) {
      return updateMap(this, k, NOT_SET);
    };

    Map.prototype.deleteIn = function(keyPath) {
      return this.updateIn(keyPath, function()  {return NOT_SET});
    };

    Map.prototype.update = function(k, notSetValue, updater) {
      return arguments.length === 1 ?
        k(this) :
        this.updateIn([k], notSetValue, updater);
    };

    Map.prototype.updateIn = function(keyPath, notSetValue, updater) {
      if (!updater) {
        updater = notSetValue;
        notSetValue = undefined;
      }
      var updatedValue = updateInDeepMap(
        this,
        forceIterator(keyPath),
        notSetValue,
        updater
      );
      return updatedValue === NOT_SET ? undefined : updatedValue;
    };

    Map.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._root = null;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyMap();
    };

    // @pragma Composition

    Map.prototype.merge = function(/*...iters*/) {
      return mergeIntoMapWith(this, undefined, arguments);
    };

    Map.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoMapWith(this, merger, iters);
    };

    Map.prototype.mergeIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);
      return this.updateIn(
        keyPath,
        emptyMap(),
        function(m ) {return typeof m.merge === 'function' ?
          m.merge.apply(m, iters) :
          iters[iters.length - 1]}
      );
    };

    Map.prototype.mergeDeep = function(/*...iters*/) {
      return mergeIntoMapWith(this, deepMerger, arguments);
    };

    Map.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoMapWith(this, deepMergerWith(merger), iters);
    };

    Map.prototype.mergeDeepIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);
      return this.updateIn(
        keyPath,
        emptyMap(),
        function(m ) {return typeof m.mergeDeep === 'function' ?
          m.mergeDeep.apply(m, iters) :
          iters[iters.length - 1]}
      );
    };

    Map.prototype.sort = function(comparator) {
      // Late binding
      return OrderedMap(sortFactory(this, comparator));
    };

    Map.prototype.sortBy = function(mapper, comparator) {
      // Late binding
      return OrderedMap(sortFactory(this, comparator, mapper));
    };

    // @pragma Mutability

    Map.prototype.withMutations = function(fn) {
      var mutable = this.asMutable();
      fn(mutable);
      return mutable.wasAltered() ? mutable.__ensureOwner(this.__ownerID) : this;
    };

    Map.prototype.asMutable = function() {
      return this.__ownerID ? this : this.__ensureOwner(new OwnerID());
    };

    Map.prototype.asImmutable = function() {
      return this.__ensureOwner();
    };

    Map.prototype.wasAltered = function() {
      return this.__altered;
    };

    Map.prototype.__iterator = function(type, reverse) {
      return new MapIterator(this, type, reverse);
    };

    Map.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      var iterations = 0;
      this._root && this._root.iterate(function(entry ) {
        iterations++;
        return fn(entry[1], entry[0], this$0);
      }, reverse);
      return iterations;
    };

    Map.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        this.__ownerID = ownerID;
        this.__altered = false;
        return this;
      }
      return makeMap(this.size, this._root, ownerID, this.__hash);
    };


  function isMap(maybeMap) {
    return !!(maybeMap && maybeMap[IS_MAP_SENTINEL]);
  }

  Map.isMap = isMap;

  var IS_MAP_SENTINEL = '@@__IMMUTABLE_MAP__@@';

  var MapPrototype = Map.prototype;
  MapPrototype[IS_MAP_SENTINEL] = true;
  MapPrototype[DELETE] = MapPrototype.remove;
  MapPrototype.removeIn = MapPrototype.deleteIn;


  // #pragma Trie Nodes



    function ArrayMapNode(ownerID, entries) {
      this.ownerID = ownerID;
      this.entries = entries;
    }

    ArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      var entries = this.entries;
      for (var ii = 0, len = entries.length; ii < len; ii++) {
        if (is(key, entries[ii][0])) {
          return entries[ii][1];
        }
      }
      return notSetValue;
    };

    ArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      var removed = value === NOT_SET;

      var entries = this.entries;
      var idx = 0;
      for (var len = entries.length; idx < len; idx++) {
        if (is(key, entries[idx][0])) {
          break;
        }
      }
      var exists = idx < len;

      if (exists ? entries[idx][1] === value : removed) {
        return this;
      }

      SetRef(didAlter);
      (removed || !exists) && SetRef(didChangeSize);

      if (removed && entries.length === 1) {
        return; // undefined
      }

      if (!exists && !removed && entries.length >= MAX_ARRAY_MAP_SIZE) {
        return createNodes(ownerID, entries, key, value);
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newEntries = isEditable ? entries : arrCopy(entries);

      if (exists) {
        if (removed) {
          idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());
        } else {
          newEntries[idx] = [key, value];
        }
      } else {
        newEntries.push([key, value]);
      }

      if (isEditable) {
        this.entries = newEntries;
        return this;
      }

      return new ArrayMapNode(ownerID, newEntries);
    };




    function BitmapIndexedNode(ownerID, bitmap, nodes) {
      this.ownerID = ownerID;
      this.bitmap = bitmap;
      this.nodes = nodes;
    }

    BitmapIndexedNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var bit = (1 << ((shift === 0 ? keyHash : keyHash >>> shift) & MASK));
      var bitmap = this.bitmap;
      return (bitmap & bit) === 0 ? notSetValue :
        this.nodes[popCount(bitmap & (bit - 1))].get(shift + SHIFT, keyHash, key, notSetValue);
    };

    BitmapIndexedNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var keyHashFrag = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
      var bit = 1 << keyHashFrag;
      var bitmap = this.bitmap;
      var exists = (bitmap & bit) !== 0;

      if (!exists && value === NOT_SET) {
        return this;
      }

      var idx = popCount(bitmap & (bit - 1));
      var nodes = this.nodes;
      var node = exists ? nodes[idx] : undefined;
      var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);

      if (newNode === node) {
        return this;
      }

      if (!exists && newNode && nodes.length >= MAX_BITMAP_INDEXED_SIZE) {
        return expandNodes(ownerID, nodes, bitmap, keyHashFrag, newNode);
      }

      if (exists && !newNode && nodes.length === 2 && isLeafNode(nodes[idx ^ 1])) {
        return nodes[idx ^ 1];
      }

      if (exists && newNode && nodes.length === 1 && isLeafNode(newNode)) {
        return newNode;
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newBitmap = exists ? newNode ? bitmap : bitmap ^ bit : bitmap | bit;
      var newNodes = exists ? newNode ?
        setIn(nodes, idx, newNode, isEditable) :
        spliceOut(nodes, idx, isEditable) :
        spliceIn(nodes, idx, newNode, isEditable);

      if (isEditable) {
        this.bitmap = newBitmap;
        this.nodes = newNodes;
        return this;
      }

      return new BitmapIndexedNode(ownerID, newBitmap, newNodes);
    };




    function HashArrayMapNode(ownerID, count, nodes) {
      this.ownerID = ownerID;
      this.count = count;
      this.nodes = nodes;
    }

    HashArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
      var node = this.nodes[idx];
      return node ? node.get(shift + SHIFT, keyHash, key, notSetValue) : notSetValue;
    };

    HashArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }
      var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
      var removed = value === NOT_SET;
      var nodes = this.nodes;
      var node = nodes[idx];

      if (removed && !node) {
        return this;
      }

      var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);
      if (newNode === node) {
        return this;
      }

      var newCount = this.count;
      if (!node) {
        newCount++;
      } else if (!newNode) {
        newCount--;
        if (newCount < MIN_HASH_ARRAY_MAP_SIZE) {
          return packNodes(ownerID, nodes, newCount, idx);
        }
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newNodes = setIn(nodes, idx, newNode, isEditable);

      if (isEditable) {
        this.count = newCount;
        this.nodes = newNodes;
        return this;
      }

      return new HashArrayMapNode(ownerID, newCount, newNodes);
    };




    function HashCollisionNode(ownerID, keyHash, entries) {
      this.ownerID = ownerID;
      this.keyHash = keyHash;
      this.entries = entries;
    }

    HashCollisionNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      var entries = this.entries;
      for (var ii = 0, len = entries.length; ii < len; ii++) {
        if (is(key, entries[ii][0])) {
          return entries[ii][1];
        }
      }
      return notSetValue;
    };

    HashCollisionNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      if (keyHash === undefined) {
        keyHash = hash(key);
      }

      var removed = value === NOT_SET;

      if (keyHash !== this.keyHash) {
        if (removed) {
          return this;
        }
        SetRef(didAlter);
        SetRef(didChangeSize);
        return mergeIntoNode(this, ownerID, shift, keyHash, [key, value]);
      }

      var entries = this.entries;
      var idx = 0;
      for (var len = entries.length; idx < len; idx++) {
        if (is(key, entries[idx][0])) {
          break;
        }
      }
      var exists = idx < len;

      if (exists ? entries[idx][1] === value : removed) {
        return this;
      }

      SetRef(didAlter);
      (removed || !exists) && SetRef(didChangeSize);

      if (removed && len === 2) {
        return new ValueNode(ownerID, this.keyHash, entries[idx ^ 1]);
      }

      var isEditable = ownerID && ownerID === this.ownerID;
      var newEntries = isEditable ? entries : arrCopy(entries);

      if (exists) {
        if (removed) {
          idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());
        } else {
          newEntries[idx] = [key, value];
        }
      } else {
        newEntries.push([key, value]);
      }

      if (isEditable) {
        this.entries = newEntries;
        return this;
      }

      return new HashCollisionNode(ownerID, this.keyHash, newEntries);
    };




    function ValueNode(ownerID, keyHash, entry) {
      this.ownerID = ownerID;
      this.keyHash = keyHash;
      this.entry = entry;
    }

    ValueNode.prototype.get = function(shift, keyHash, key, notSetValue) {
      return is(key, this.entry[0]) ? this.entry[1] : notSetValue;
    };

    ValueNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
      var removed = value === NOT_SET;
      var keyMatch = is(key, this.entry[0]);
      if (keyMatch ? value === this.entry[1] : removed) {
        return this;
      }

      SetRef(didAlter);

      if (removed) {
        SetRef(didChangeSize);
        return; // undefined
      }

      if (keyMatch) {
        if (ownerID && ownerID === this.ownerID) {
          this.entry[1] = value;
          return this;
        }
        return new ValueNode(ownerID, this.keyHash, [key, value]);
      }

      SetRef(didChangeSize);
      return mergeIntoNode(this, ownerID, shift, hash(key), [key, value]);
    };



  // #pragma Iterators

  ArrayMapNode.prototype.iterate =
  HashCollisionNode.prototype.iterate = function (fn, reverse) {
    var entries = this.entries;
    for (var ii = 0, maxIndex = entries.length - 1; ii <= maxIndex; ii++) {
      if (fn(entries[reverse ? maxIndex - ii : ii]) === false) {
        return false;
      }
    }
  };

  BitmapIndexedNode.prototype.iterate =
  HashArrayMapNode.prototype.iterate = function (fn, reverse) {
    var nodes = this.nodes;
    for (var ii = 0, maxIndex = nodes.length - 1; ii <= maxIndex; ii++) {
      var node = nodes[reverse ? maxIndex - ii : ii];
      if (node && node.iterate(fn, reverse) === false) {
        return false;
      }
    }
  };

  ValueNode.prototype.iterate = function (fn, reverse) {
    return fn(this.entry);
  };

  createClass(MapIterator, Iterator);

    function MapIterator(map, type, reverse) {
      this._type = type;
      this._reverse = reverse;
      this._stack = map._root && mapIteratorFrame(map._root);
    }

    MapIterator.prototype.next = function() {
      var type = this._type;
      var stack = this._stack;
      while (stack) {
        var node = stack.node;
        var index = stack.index++;
        var maxIndex;
        if (node.entry) {
          if (index === 0) {
            return mapIteratorValue(type, node.entry);
          }
        } else if (node.entries) {
          maxIndex = node.entries.length - 1;
          if (index <= maxIndex) {
            return mapIteratorValue(type, node.entries[this._reverse ? maxIndex - index : index]);
          }
        } else {
          maxIndex = node.nodes.length - 1;
          if (index <= maxIndex) {
            var subNode = node.nodes[this._reverse ? maxIndex - index : index];
            if (subNode) {
              if (subNode.entry) {
                return mapIteratorValue(type, subNode.entry);
              }
              stack = this._stack = mapIteratorFrame(subNode, stack);
            }
            continue;
          }
        }
        stack = this._stack = this._stack.__prev;
      }
      return iteratorDone();
    };


  function mapIteratorValue(type, entry) {
    return iteratorValue(type, entry[0], entry[1]);
  }

  function mapIteratorFrame(node, prev) {
    return {
      node: node,
      index: 0,
      __prev: prev
    };
  }

  function makeMap(size, root, ownerID, hash) {
    var map = Object.create(MapPrototype);
    map.size = size;
    map._root = root;
    map.__ownerID = ownerID;
    map.__hash = hash;
    map.__altered = false;
    return map;
  }

  var EMPTY_MAP;
  function emptyMap() {
    return EMPTY_MAP || (EMPTY_MAP = makeMap(0));
  }

  function updateMap(map, k, v) {
    var newRoot;
    var newSize;
    if (!map._root) {
      if (v === NOT_SET) {
        return map;
      }
      newSize = 1;
      newRoot = new ArrayMapNode(map.__ownerID, [[k, v]]);
    } else {
      var didChangeSize = MakeRef(CHANGE_LENGTH);
      var didAlter = MakeRef(DID_ALTER);
      newRoot = updateNode(map._root, map.__ownerID, 0, undefined, k, v, didChangeSize, didAlter);
      if (!didAlter.value) {
        return map;
      }
      newSize = map.size + (didChangeSize.value ? v === NOT_SET ? -1 : 1 : 0);
    }
    if (map.__ownerID) {
      map.size = newSize;
      map._root = newRoot;
      map.__hash = undefined;
      map.__altered = true;
      return map;
    }
    return newRoot ? makeMap(newSize, newRoot) : emptyMap();
  }

  function updateNode(node, ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
    if (!node) {
      if (value === NOT_SET) {
        return node;
      }
      SetRef(didAlter);
      SetRef(didChangeSize);
      return new ValueNode(ownerID, keyHash, [key, value]);
    }
    return node.update(ownerID, shift, keyHash, key, value, didChangeSize, didAlter);
  }

  function isLeafNode(node) {
    return node.constructor === ValueNode || node.constructor === HashCollisionNode;
  }

  function mergeIntoNode(node, ownerID, shift, keyHash, entry) {
    if (node.keyHash === keyHash) {
      return new HashCollisionNode(ownerID, keyHash, [node.entry, entry]);
    }

    var idx1 = (shift === 0 ? node.keyHash : node.keyHash >>> shift) & MASK;
    var idx2 = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;

    var newNode;
    var nodes = idx1 === idx2 ?
      [mergeIntoNode(node, ownerID, shift + SHIFT, keyHash, entry)] :
      ((newNode = new ValueNode(ownerID, keyHash, entry)), idx1 < idx2 ? [node, newNode] : [newNode, node]);

    return new BitmapIndexedNode(ownerID, (1 << idx1) | (1 << idx2), nodes);
  }

  function createNodes(ownerID, entries, key, value) {
    if (!ownerID) {
      ownerID = new OwnerID();
    }
    var node = new ValueNode(ownerID, hash(key), [key, value]);
    for (var ii = 0; ii < entries.length; ii++) {
      var entry = entries[ii];
      node = node.update(ownerID, 0, undefined, entry[0], entry[1]);
    }
    return node;
  }

  function packNodes(ownerID, nodes, count, excluding) {
    var bitmap = 0;
    var packedII = 0;
    var packedNodes = new Array(count);
    for (var ii = 0, bit = 1, len = nodes.length; ii < len; ii++, bit <<= 1) {
      var node = nodes[ii];
      if (node !== undefined && ii !== excluding) {
        bitmap |= bit;
        packedNodes[packedII++] = node;
      }
    }
    return new BitmapIndexedNode(ownerID, bitmap, packedNodes);
  }

  function expandNodes(ownerID, nodes, bitmap, including, node) {
    var count = 0;
    var expandedNodes = new Array(SIZE);
    for (var ii = 0; bitmap !== 0; ii++, bitmap >>>= 1) {
      expandedNodes[ii] = bitmap & 1 ? nodes[count++] : undefined;
    }
    expandedNodes[including] = node;
    return new HashArrayMapNode(ownerID, count + 1, expandedNodes);
  }

  function mergeIntoMapWith(map, merger, iterables) {
    var iters = [];
    for (var ii = 0; ii < iterables.length; ii++) {
      var value = iterables[ii];
      var iter = KeyedIterable(value);
      if (!isIterable(value)) {
        iter = iter.map(function(v ) {return fromJS(v)});
      }
      iters.push(iter);
    }
    return mergeIntoCollectionWith(map, merger, iters);
  }

  function deepMerger(existing, value, key) {
    return existing && existing.mergeDeep && isIterable(value) ?
      existing.mergeDeep(value) :
      is(existing, value) ? existing : value;
  }

  function deepMergerWith(merger) {
    return function(existing, value, key)  {
      if (existing && existing.mergeDeepWith && isIterable(value)) {
        return existing.mergeDeepWith(merger, value);
      }
      var nextValue = merger(existing, value, key);
      return is(existing, nextValue) ? existing : nextValue;
    };
  }

  function mergeIntoCollectionWith(collection, merger, iters) {
    iters = iters.filter(function(x ) {return x.size !== 0});
    if (iters.length === 0) {
      return collection;
    }
    if (collection.size === 0 && !collection.__ownerID && iters.length === 1) {
      return collection.constructor(iters[0]);
    }
    return collection.withMutations(function(collection ) {
      var mergeIntoMap = merger ?
        function(value, key)  {
          collection.update(key, NOT_SET, function(existing )
            {return existing === NOT_SET ? value : merger(existing, value, key)}
          );
        } :
        function(value, key)  {
          collection.set(key, value);
        };
      for (var ii = 0; ii < iters.length; ii++) {
        iters[ii].forEach(mergeIntoMap);
      }
    });
  }

  function updateInDeepMap(existing, keyPathIter, notSetValue, updater) {
    var isNotSet = existing === NOT_SET;
    var step = keyPathIter.next();
    if (step.done) {
      var existingValue = isNotSet ? notSetValue : existing;
      var newValue = updater(existingValue);
      return newValue === existingValue ? existing : newValue;
    }
    invariant(
      isNotSet || (existing && existing.set),
      'invalid keyPath'
    );
    var key = step.value;
    var nextExisting = isNotSet ? NOT_SET : existing.get(key, NOT_SET);
    var nextUpdated = updateInDeepMap(
      nextExisting,
      keyPathIter,
      notSetValue,
      updater
    );
    return nextUpdated === nextExisting ? existing :
      nextUpdated === NOT_SET ? existing.remove(key) :
      (isNotSet ? emptyMap() : existing).set(key, nextUpdated);
  }

  function popCount(x) {
    x = x - ((x >> 1) & 0x55555555);
    x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
    x = (x + (x >> 4)) & 0x0f0f0f0f;
    x = x + (x >> 8);
    x = x + (x >> 16);
    return x & 0x7f;
  }

  function setIn(array, idx, val, canEdit) {
    var newArray = canEdit ? array : arrCopy(array);
    newArray[idx] = val;
    return newArray;
  }

  function spliceIn(array, idx, val, canEdit) {
    var newLen = array.length + 1;
    if (canEdit && idx + 1 === newLen) {
      array[idx] = val;
      return array;
    }
    var newArray = new Array(newLen);
    var after = 0;
    for (var ii = 0; ii < newLen; ii++) {
      if (ii === idx) {
        newArray[ii] = val;
        after = -1;
      } else {
        newArray[ii] = array[ii + after];
      }
    }
    return newArray;
  }

  function spliceOut(array, idx, canEdit) {
    var newLen = array.length - 1;
    if (canEdit && idx === newLen) {
      array.pop();
      return array;
    }
    var newArray = new Array(newLen);
    var after = 0;
    for (var ii = 0; ii < newLen; ii++) {
      if (ii === idx) {
        after = 1;
      }
      newArray[ii] = array[ii + after];
    }
    return newArray;
  }

  var MAX_ARRAY_MAP_SIZE = SIZE / 4;
  var MAX_BITMAP_INDEXED_SIZE = SIZE / 2;
  var MIN_HASH_ARRAY_MAP_SIZE = SIZE / 4;

  createClass(List, IndexedCollection);

    // @pragma Construction

    function List(value) {
      var empty = emptyList();
      if (value === null || value === undefined) {
        return empty;
      }
      if (isList(value)) {
        return value;
      }
      var iter = IndexedIterable(value);
      var size = iter.size;
      if (size === 0) {
        return empty;
      }
      assertNotInfinite(size);
      if (size > 0 && size < SIZE) {
        return makeList(0, size, SHIFT, null, new VNode(iter.toArray()));
      }
      return empty.withMutations(function(list ) {
        list.setSize(size);
        iter.forEach(function(v, i)  {return list.set(i, v)});
      });
    }

    List.of = function(/*...values*/) {
      return this(arguments);
    };

    List.prototype.toString = function() {
      return this.__toString('List [', ']');
    };

    // @pragma Access

    List.prototype.get = function(index, notSetValue) {
      index = wrapIndex(this, index);
      if (index >= 0 && index < this.size) {
        index += this._origin;
        var node = listNodeFor(this, index);
        return node && node.array[index & MASK];
      }
      return notSetValue;
    };

    // @pragma Modification

    List.prototype.set = function(index, value) {
      return updateList(this, index, value);
    };

    List.prototype.remove = function(index) {
      return !this.has(index) ? this :
        index === 0 ? this.shift() :
        index === this.size - 1 ? this.pop() :
        this.splice(index, 1);
    };

    List.prototype.insert = function(index, value) {
      return this.splice(index, 0, value);
    };

    List.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = this._origin = this._capacity = 0;
        this._level = SHIFT;
        this._root = this._tail = null;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyList();
    };

    List.prototype.push = function(/*...values*/) {
      var values = arguments;
      var oldSize = this.size;
      return this.withMutations(function(list ) {
        setListBounds(list, 0, oldSize + values.length);
        for (var ii = 0; ii < values.length; ii++) {
          list.set(oldSize + ii, values[ii]);
        }
      });
    };

    List.prototype.pop = function() {
      return setListBounds(this, 0, -1);
    };

    List.prototype.unshift = function(/*...values*/) {
      var values = arguments;
      return this.withMutations(function(list ) {
        setListBounds(list, -values.length);
        for (var ii = 0; ii < values.length; ii++) {
          list.set(ii, values[ii]);
        }
      });
    };

    List.prototype.shift = function() {
      return setListBounds(this, 1);
    };

    // @pragma Composition

    List.prototype.merge = function(/*...iters*/) {
      return mergeIntoListWith(this, undefined, arguments);
    };

    List.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoListWith(this, merger, iters);
    };

    List.prototype.mergeDeep = function(/*...iters*/) {
      return mergeIntoListWith(this, deepMerger, arguments);
    };

    List.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return mergeIntoListWith(this, deepMergerWith(merger), iters);
    };

    List.prototype.setSize = function(size) {
      return setListBounds(this, 0, size);
    };

    // @pragma Iteration

    List.prototype.slice = function(begin, end) {
      var size = this.size;
      if (wholeSlice(begin, end, size)) {
        return this;
      }
      return setListBounds(
        this,
        resolveBegin(begin, size),
        resolveEnd(end, size)
      );
    };

    List.prototype.__iterator = function(type, reverse) {
      var index = 0;
      var values = iterateList(this, reverse);
      return new Iterator(function()  {
        var value = values();
        return value === DONE ?
          iteratorDone() :
          iteratorValue(type, index++, value);
      });
    };

    List.prototype.__iterate = function(fn, reverse) {
      var index = 0;
      var values = iterateList(this, reverse);
      var value;
      while ((value = values()) !== DONE) {
        if (fn(value, index++, this) === false) {
          break;
        }
      }
      return index;
    };

    List.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        this.__ownerID = ownerID;
        return this;
      }
      return makeList(this._origin, this._capacity, this._level, this._root, this._tail, ownerID, this.__hash);
    };


  function isList(maybeList) {
    return !!(maybeList && maybeList[IS_LIST_SENTINEL]);
  }

  List.isList = isList;

  var IS_LIST_SENTINEL = '@@__IMMUTABLE_LIST__@@';

  var ListPrototype = List.prototype;
  ListPrototype[IS_LIST_SENTINEL] = true;
  ListPrototype[DELETE] = ListPrototype.remove;
  ListPrototype.setIn = MapPrototype.setIn;
  ListPrototype.deleteIn =
  ListPrototype.removeIn = MapPrototype.removeIn;
  ListPrototype.update = MapPrototype.update;
  ListPrototype.updateIn = MapPrototype.updateIn;
  ListPrototype.mergeIn = MapPrototype.mergeIn;
  ListPrototype.mergeDeepIn = MapPrototype.mergeDeepIn;
  ListPrototype.withMutations = MapPrototype.withMutations;
  ListPrototype.asMutable = MapPrototype.asMutable;
  ListPrototype.asImmutable = MapPrototype.asImmutable;
  ListPrototype.wasAltered = MapPrototype.wasAltered;



    function VNode(array, ownerID) {
      this.array = array;
      this.ownerID = ownerID;
    }

    // TODO: seems like these methods are very similar

    VNode.prototype.removeBefore = function(ownerID, level, index) {
      if (index === level ? 1 << level :  this.array.length === 0) {
        return this;
      }
      var originIndex = (index >>> level) & MASK;
      if (originIndex >= this.array.length) {
        return new VNode([], ownerID);
      }
      var removingFirst = originIndex === 0;
      var newChild;
      if (level > 0) {
        var oldChild = this.array[originIndex];
        newChild = oldChild && oldChild.removeBefore(ownerID, level - SHIFT, index);
        if (newChild === oldChild && removingFirst) {
          return this;
        }
      }
      if (removingFirst && !newChild) {
        return this;
      }
      var editable = editableVNode(this, ownerID);
      if (!removingFirst) {
        for (var ii = 0; ii < originIndex; ii++) {
          editable.array[ii] = undefined;
        }
      }
      if (newChild) {
        editable.array[originIndex] = newChild;
      }
      return editable;
    };

    VNode.prototype.removeAfter = function(ownerID, level, index) {
      if (index === (level ? 1 << level : 0) || this.array.length === 0) {
        return this;
      }
      var sizeIndex = ((index - 1) >>> level) & MASK;
      if (sizeIndex >= this.array.length) {
        return this;
      }

      var newChild;
      if (level > 0) {
        var oldChild = this.array[sizeIndex];
        newChild = oldChild && oldChild.removeAfter(ownerID, level - SHIFT, index);
        if (newChild === oldChild && sizeIndex === this.array.length - 1) {
          return this;
        }
      }

      var editable = editableVNode(this, ownerID);
      editable.array.splice(sizeIndex + 1);
      if (newChild) {
        editable.array[sizeIndex] = newChild;
      }
      return editable;
    };



  var DONE = {};

  function iterateList(list, reverse) {
    var left = list._origin;
    var right = list._capacity;
    var tailPos = getTailOffset(right);
    var tail = list._tail;

    return iterateNodeOrLeaf(list._root, list._level, 0);

    function iterateNodeOrLeaf(node, level, offset) {
      return level === 0 ?
        iterateLeaf(node, offset) :
        iterateNode(node, level, offset);
    }

    function iterateLeaf(node, offset) {
      var array = offset === tailPos ? tail && tail.array : node && node.array;
      var from = offset > left ? 0 : left - offset;
      var to = right - offset;
      if (to > SIZE) {
        to = SIZE;
      }
      return function()  {
        if (from === to) {
          return DONE;
        }
        var idx = reverse ? --to : from++;
        return array && array[idx];
      };
    }

    function iterateNode(node, level, offset) {
      var values;
      var array = node && node.array;
      var from = offset > left ? 0 : (left - offset) >> level;
      var to = ((right - offset) >> level) + 1;
      if (to > SIZE) {
        to = SIZE;
      }
      return function()  {
        do {
          if (values) {
            var value = values();
            if (value !== DONE) {
              return value;
            }
            values = null;
          }
          if (from === to) {
            return DONE;
          }
          var idx = reverse ? --to : from++;
          values = iterateNodeOrLeaf(
            array && array[idx], level - SHIFT, offset + (idx << level)
          );
        } while (true);
      };
    }
  }

  function makeList(origin, capacity, level, root, tail, ownerID, hash) {
    var list = Object.create(ListPrototype);
    list.size = capacity - origin;
    list._origin = origin;
    list._capacity = capacity;
    list._level = level;
    list._root = root;
    list._tail = tail;
    list.__ownerID = ownerID;
    list.__hash = hash;
    list.__altered = false;
    return list;
  }

  var EMPTY_LIST;
  function emptyList() {
    return EMPTY_LIST || (EMPTY_LIST = makeList(0, 0, SHIFT));
  }

  function updateList(list, index, value) {
    index = wrapIndex(list, index);

    if (index !== index) {
      return list;
    }

    if (index >= list.size || index < 0) {
      return list.withMutations(function(list ) {
        index < 0 ?
          setListBounds(list, index).set(0, value) :
          setListBounds(list, 0, index + 1).set(index, value);
      });
    }

    index += list._origin;

    var newTail = list._tail;
    var newRoot = list._root;
    var didAlter = MakeRef(DID_ALTER);
    if (index >= getTailOffset(list._capacity)) {
      newTail = updateVNode(newTail, list.__ownerID, 0, index, value, didAlter);
    } else {
      newRoot = updateVNode(newRoot, list.__ownerID, list._level, index, value, didAlter);
    }

    if (!didAlter.value) {
      return list;
    }

    if (list.__ownerID) {
      list._root = newRoot;
      list._tail = newTail;
      list.__hash = undefined;
      list.__altered = true;
      return list;
    }
    return makeList(list._origin, list._capacity, list._level, newRoot, newTail);
  }

  function updateVNode(node, ownerID, level, index, value, didAlter) {
    var idx = (index >>> level) & MASK;
    var nodeHas = node && idx < node.array.length;
    if (!nodeHas && value === undefined) {
      return node;
    }

    var newNode;

    if (level > 0) {
      var lowerNode = node && node.array[idx];
      var newLowerNode = updateVNode(lowerNode, ownerID, level - SHIFT, index, value, didAlter);
      if (newLowerNode === lowerNode) {
        return node;
      }
      newNode = editableVNode(node, ownerID);
      newNode.array[idx] = newLowerNode;
      return newNode;
    }

    if (nodeHas && node.array[idx] === value) {
      return node;
    }

    SetRef(didAlter);

    newNode = editableVNode(node, ownerID);
    if (value === undefined && idx === newNode.array.length - 1) {
      newNode.array.pop();
    } else {
      newNode.array[idx] = value;
    }
    return newNode;
  }

  function editableVNode(node, ownerID) {
    if (ownerID && node && ownerID === node.ownerID) {
      return node;
    }
    return new VNode(node ? node.array.slice() : [], ownerID);
  }

  function listNodeFor(list, rawIndex) {
    if (rawIndex >= getTailOffset(list._capacity)) {
      return list._tail;
    }
    if (rawIndex < 1 << (list._level + SHIFT)) {
      var node = list._root;
      var level = list._level;
      while (node && level > 0) {
        node = node.array[(rawIndex >>> level) & MASK];
        level -= SHIFT;
      }
      return node;
    }
  }

  function setListBounds(list, begin, end) {
    // Sanitize begin & end using this shorthand for ToInt32(argument)
    // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
    if (begin !== undefined) {
      begin = begin | 0;
    }
    if (end !== undefined) {
      end = end | 0;
    }
    var owner = list.__ownerID || new OwnerID();
    var oldOrigin = list._origin;
    var oldCapacity = list._capacity;
    var newOrigin = oldOrigin + begin;
    var newCapacity = end === undefined ? oldCapacity : end < 0 ? oldCapacity + end : oldOrigin + end;
    if (newOrigin === oldOrigin && newCapacity === oldCapacity) {
      return list;
    }

    // If it's going to end after it starts, it's empty.
    if (newOrigin >= newCapacity) {
      return list.clear();
    }

    var newLevel = list._level;
    var newRoot = list._root;

    // New origin might need creating a higher root.
    var offsetShift = 0;
    while (newOrigin + offsetShift < 0) {
      newRoot = new VNode(newRoot && newRoot.array.length ? [undefined, newRoot] : [], owner);
      newLevel += SHIFT;
      offsetShift += 1 << newLevel;
    }
    if (offsetShift) {
      newOrigin += offsetShift;
      oldOrigin += offsetShift;
      newCapacity += offsetShift;
      oldCapacity += offsetShift;
    }

    var oldTailOffset = getTailOffset(oldCapacity);
    var newTailOffset = getTailOffset(newCapacity);

    // New size might need creating a higher root.
    while (newTailOffset >= 1 << (newLevel + SHIFT)) {
      newRoot = new VNode(newRoot && newRoot.array.length ? [newRoot] : [], owner);
      newLevel += SHIFT;
    }

    // Locate or create the new tail.
    var oldTail = list._tail;
    var newTail = newTailOffset < oldTailOffset ?
      listNodeFor(list, newCapacity - 1) :
      newTailOffset > oldTailOffset ? new VNode([], owner) : oldTail;

    // Merge Tail into tree.
    if (oldTail && newTailOffset > oldTailOffset && newOrigin < oldCapacity && oldTail.array.length) {
      newRoot = editableVNode(newRoot, owner);
      var node = newRoot;
      for (var level = newLevel; level > SHIFT; level -= SHIFT) {
        var idx = (oldTailOffset >>> level) & MASK;
        node = node.array[idx] = editableVNode(node.array[idx], owner);
      }
      node.array[(oldTailOffset >>> SHIFT) & MASK] = oldTail;
    }

    // If the size has been reduced, there's a chance the tail needs to be trimmed.
    if (newCapacity < oldCapacity) {
      newTail = newTail && newTail.removeAfter(owner, 0, newCapacity);
    }

    // If the new origin is within the tail, then we do not need a root.
    if (newOrigin >= newTailOffset) {
      newOrigin -= newTailOffset;
      newCapacity -= newTailOffset;
      newLevel = SHIFT;
      newRoot = null;
      newTail = newTail && newTail.removeBefore(owner, 0, newOrigin);

    // Otherwise, if the root has been trimmed, garbage collect.
    } else if (newOrigin > oldOrigin || newTailOffset < oldTailOffset) {
      offsetShift = 0;

      // Identify the new top root node of the subtree of the old root.
      while (newRoot) {
        var beginIndex = (newOrigin >>> newLevel) & MASK;
        if (beginIndex !== (newTailOffset >>> newLevel) & MASK) {
          break;
        }
        if (beginIndex) {
          offsetShift += (1 << newLevel) * beginIndex;
        }
        newLevel -= SHIFT;
        newRoot = newRoot.array[beginIndex];
      }

      // Trim the new sides of the new root.
      if (newRoot && newOrigin > oldOrigin) {
        newRoot = newRoot.removeBefore(owner, newLevel, newOrigin - offsetShift);
      }
      if (newRoot && newTailOffset < oldTailOffset) {
        newRoot = newRoot.removeAfter(owner, newLevel, newTailOffset - offsetShift);
      }
      if (offsetShift) {
        newOrigin -= offsetShift;
        newCapacity -= offsetShift;
      }
    }

    if (list.__ownerID) {
      list.size = newCapacity - newOrigin;
      list._origin = newOrigin;
      list._capacity = newCapacity;
      list._level = newLevel;
      list._root = newRoot;
      list._tail = newTail;
      list.__hash = undefined;
      list.__altered = true;
      return list;
    }
    return makeList(newOrigin, newCapacity, newLevel, newRoot, newTail);
  }

  function mergeIntoListWith(list, merger, iterables) {
    var iters = [];
    var maxSize = 0;
    for (var ii = 0; ii < iterables.length; ii++) {
      var value = iterables[ii];
      var iter = IndexedIterable(value);
      if (iter.size > maxSize) {
        maxSize = iter.size;
      }
      if (!isIterable(value)) {
        iter = iter.map(function(v ) {return fromJS(v)});
      }
      iters.push(iter);
    }
    if (maxSize > list.size) {
      list = list.setSize(maxSize);
    }
    return mergeIntoCollectionWith(list, merger, iters);
  }

  function getTailOffset(size) {
    return size < SIZE ? 0 : (((size - 1) >>> SHIFT) << SHIFT);
  }

  createClass(OrderedMap, Map);

    // @pragma Construction

    function OrderedMap(value) {
      return value === null || value === undefined ? emptyOrderedMap() :
        isOrderedMap(value) ? value :
        emptyOrderedMap().withMutations(function(map ) {
          var iter = KeyedIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v, k)  {return map.set(k, v)});
        });
    }

    OrderedMap.of = function(/*...values*/) {
      return this(arguments);
    };

    OrderedMap.prototype.toString = function() {
      return this.__toString('OrderedMap {', '}');
    };

    // @pragma Access

    OrderedMap.prototype.get = function(k, notSetValue) {
      var index = this._map.get(k);
      return index !== undefined ? this._list.get(index)[1] : notSetValue;
    };

    // @pragma Modification

    OrderedMap.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._map.clear();
        this._list.clear();
        return this;
      }
      return emptyOrderedMap();
    };

    OrderedMap.prototype.set = function(k, v) {
      return updateOrderedMap(this, k, v);
    };

    OrderedMap.prototype.remove = function(k) {
      return updateOrderedMap(this, k, NOT_SET);
    };

    OrderedMap.prototype.wasAltered = function() {
      return this._map.wasAltered() || this._list.wasAltered();
    };

    OrderedMap.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._list.__iterate(
        function(entry ) {return entry && fn(entry[1], entry[0], this$0)},
        reverse
      );
    };

    OrderedMap.prototype.__iterator = function(type, reverse) {
      return this._list.fromEntrySeq().__iterator(type, reverse);
    };

    OrderedMap.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      var newMap = this._map.__ensureOwner(ownerID);
      var newList = this._list.__ensureOwner(ownerID);
      if (!ownerID) {
        this.__ownerID = ownerID;
        this._map = newMap;
        this._list = newList;
        return this;
      }
      return makeOrderedMap(newMap, newList, ownerID, this.__hash);
    };


  function isOrderedMap(maybeOrderedMap) {
    return isMap(maybeOrderedMap) && isOrdered(maybeOrderedMap);
  }

  OrderedMap.isOrderedMap = isOrderedMap;

  OrderedMap.prototype[IS_ORDERED_SENTINEL] = true;
  OrderedMap.prototype[DELETE] = OrderedMap.prototype.remove;



  function makeOrderedMap(map, list, ownerID, hash) {
    var omap = Object.create(OrderedMap.prototype);
    omap.size = map ? map.size : 0;
    omap._map = map;
    omap._list = list;
    omap.__ownerID = ownerID;
    omap.__hash = hash;
    return omap;
  }

  var EMPTY_ORDERED_MAP;
  function emptyOrderedMap() {
    return EMPTY_ORDERED_MAP || (EMPTY_ORDERED_MAP = makeOrderedMap(emptyMap(), emptyList()));
  }

  function updateOrderedMap(omap, k, v) {
    var map = omap._map;
    var list = omap._list;
    var i = map.get(k);
    var has = i !== undefined;
    var newMap;
    var newList;
    if (v === NOT_SET) { // removed
      if (!has) {
        return omap;
      }
      if (list.size >= SIZE && list.size >= map.size * 2) {
        newList = list.filter(function(entry, idx)  {return entry !== undefined && i !== idx});
        newMap = newList.toKeyedSeq().map(function(entry ) {return entry[0]}).flip().toMap();
        if (omap.__ownerID) {
          newMap.__ownerID = newList.__ownerID = omap.__ownerID;
        }
      } else {
        newMap = map.remove(k);
        newList = i === list.size - 1 ? list.pop() : list.set(i, undefined);
      }
    } else {
      if (has) {
        if (v === list.get(i)[1]) {
          return omap;
        }
        newMap = map;
        newList = list.set(i, [k, v]);
      } else {
        newMap = map.set(k, list.size);
        newList = list.set(list.size, [k, v]);
      }
    }
    if (omap.__ownerID) {
      omap.size = newMap.size;
      omap._map = newMap;
      omap._list = newList;
      omap.__hash = undefined;
      return omap;
    }
    return makeOrderedMap(newMap, newList);
  }

  createClass(ToKeyedSequence, KeyedSeq);
    function ToKeyedSequence(indexed, useKeys) {
      this._iter = indexed;
      this._useKeys = useKeys;
      this.size = indexed.size;
    }

    ToKeyedSequence.prototype.get = function(key, notSetValue) {
      return this._iter.get(key, notSetValue);
    };

    ToKeyedSequence.prototype.has = function(key) {
      return this._iter.has(key);
    };

    ToKeyedSequence.prototype.valueSeq = function() {
      return this._iter.valueSeq();
    };

    ToKeyedSequence.prototype.reverse = function() {var this$0 = this;
      var reversedSequence = reverseFactory(this, true);
      if (!this._useKeys) {
        reversedSequence.valueSeq = function()  {return this$0._iter.toSeq().reverse()};
      }
      return reversedSequence;
    };

    ToKeyedSequence.prototype.map = function(mapper, context) {var this$0 = this;
      var mappedSequence = mapFactory(this, mapper, context);
      if (!this._useKeys) {
        mappedSequence.valueSeq = function()  {return this$0._iter.toSeq().map(mapper, context)};
      }
      return mappedSequence;
    };

    ToKeyedSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      var ii;
      return this._iter.__iterate(
        this._useKeys ?
          function(v, k)  {return fn(v, k, this$0)} :
          ((ii = reverse ? resolveSize(this) : 0),
            function(v ) {return fn(v, reverse ? --ii : ii++, this$0)}),
        reverse
      );
    };

    ToKeyedSequence.prototype.__iterator = function(type, reverse) {
      if (this._useKeys) {
        return this._iter.__iterator(type, reverse);
      }
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      var ii = reverse ? resolveSize(this) : 0;
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step :
          iteratorValue(type, reverse ? --ii : ii++, step.value, step);
      });
    };

  ToKeyedSequence.prototype[IS_ORDERED_SENTINEL] = true;


  createClass(ToIndexedSequence, IndexedSeq);
    function ToIndexedSequence(iter) {
      this._iter = iter;
      this.size = iter.size;
    }

    ToIndexedSequence.prototype.includes = function(value) {
      return this._iter.includes(value);
    };

    ToIndexedSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      var iterations = 0;
      return this._iter.__iterate(function(v ) {return fn(v, iterations++, this$0)}, reverse);
    };

    ToIndexedSequence.prototype.__iterator = function(type, reverse) {
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      var iterations = 0;
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step :
          iteratorValue(type, iterations++, step.value, step)
      });
    };



  createClass(ToSetSequence, SetSeq);
    function ToSetSequence(iter) {
      this._iter = iter;
      this.size = iter.size;
    }

    ToSetSequence.prototype.has = function(key) {
      return this._iter.includes(key);
    };

    ToSetSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._iter.__iterate(function(v ) {return fn(v, v, this$0)}, reverse);
    };

    ToSetSequence.prototype.__iterator = function(type, reverse) {
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step :
          iteratorValue(type, step.value, step.value, step);
      });
    };



  createClass(FromEntriesSequence, KeyedSeq);
    function FromEntriesSequence(entries) {
      this._iter = entries;
      this.size = entries.size;
    }

    FromEntriesSequence.prototype.entrySeq = function() {
      return this._iter.toSeq();
    };

    FromEntriesSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._iter.__iterate(function(entry ) {
        // Check if entry exists first so array access doesn't throw for holes
        // in the parent iteration.
        if (entry) {
          validateEntry(entry);
          var indexedIterable = isIterable(entry);
          return fn(
            indexedIterable ? entry.get(1) : entry[1],
            indexedIterable ? entry.get(0) : entry[0],
            this$0
          );
        }
      }, reverse);
    };

    FromEntriesSequence.prototype.__iterator = function(type, reverse) {
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      return new Iterator(function()  {
        while (true) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          var entry = step.value;
          // Check if entry exists first so array access doesn't throw for holes
          // in the parent iteration.
          if (entry) {
            validateEntry(entry);
            var indexedIterable = isIterable(entry);
            return iteratorValue(
              type,
              indexedIterable ? entry.get(0) : entry[0],
              indexedIterable ? entry.get(1) : entry[1],
              step
            );
          }
        }
      });
    };


  ToIndexedSequence.prototype.cacheResult =
  ToKeyedSequence.prototype.cacheResult =
  ToSetSequence.prototype.cacheResult =
  FromEntriesSequence.prototype.cacheResult =
    cacheResultThrough;


  function flipFactory(iterable) {
    var flipSequence = makeSequence(iterable);
    flipSequence._iter = iterable;
    flipSequence.size = iterable.size;
    flipSequence.flip = function()  {return iterable};
    flipSequence.reverse = function () {
      var reversedSequence = iterable.reverse.apply(this); // super.reverse()
      reversedSequence.flip = function()  {return iterable.reverse()};
      return reversedSequence;
    };
    flipSequence.has = function(key ) {return iterable.includes(key)};
    flipSequence.includes = function(key ) {return iterable.has(key)};
    flipSequence.cacheResult = cacheResultThrough;
    flipSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      return iterable.__iterate(function(v, k)  {return fn(k, v, this$0) !== false}, reverse);
    };
    flipSequence.__iteratorUncached = function(type, reverse) {
      if (type === ITERATE_ENTRIES) {
        var iterator = iterable.__iterator(type, reverse);
        return new Iterator(function()  {
          var step = iterator.next();
          if (!step.done) {
            var k = step.value[0];
            step.value[0] = step.value[1];
            step.value[1] = k;
          }
          return step;
        });
      }
      return iterable.__iterator(
        type === ITERATE_VALUES ? ITERATE_KEYS : ITERATE_VALUES,
        reverse
      );
    };
    return flipSequence;
  }


  function mapFactory(iterable, mapper, context) {
    var mappedSequence = makeSequence(iterable);
    mappedSequence.size = iterable.size;
    mappedSequence.has = function(key ) {return iterable.has(key)};
    mappedSequence.get = function(key, notSetValue)  {
      var v = iterable.get(key, NOT_SET);
      return v === NOT_SET ?
        notSetValue :
        mapper.call(context, v, key, iterable);
    };
    mappedSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      return iterable.__iterate(
        function(v, k, c)  {return fn(mapper.call(context, v, k, c), k, this$0) !== false},
        reverse
      );
    };
    mappedSequence.__iteratorUncached = function (type, reverse) {
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      return new Iterator(function()  {
        var step = iterator.next();
        if (step.done) {
          return step;
        }
        var entry = step.value;
        var key = entry[0];
        return iteratorValue(
          type,
          key,
          mapper.call(context, entry[1], key, iterable),
          step
        );
      });
    };
    return mappedSequence;
  }


  function reverseFactory(iterable, useKeys) {
    var reversedSequence = makeSequence(iterable);
    reversedSequence._iter = iterable;
    reversedSequence.size = iterable.size;
    reversedSequence.reverse = function()  {return iterable};
    if (iterable.flip) {
      reversedSequence.flip = function () {
        var flipSequence = flipFactory(iterable);
        flipSequence.reverse = function()  {return iterable.flip()};
        return flipSequence;
      };
    }
    reversedSequence.get = function(key, notSetValue) 
      {return iterable.get(useKeys ? key : -1 - key, notSetValue)};
    reversedSequence.has = function(key )
      {return iterable.has(useKeys ? key : -1 - key)};
    reversedSequence.includes = function(value ) {return iterable.includes(value)};
    reversedSequence.cacheResult = cacheResultThrough;
    reversedSequence.__iterate = function (fn, reverse) {var this$0 = this;
      return iterable.__iterate(function(v, k)  {return fn(v, k, this$0)}, !reverse);
    };
    reversedSequence.__iterator =
      function(type, reverse)  {return iterable.__iterator(type, !reverse)};
    return reversedSequence;
  }


  function filterFactory(iterable, predicate, context, useKeys) {
    var filterSequence = makeSequence(iterable);
    if (useKeys) {
      filterSequence.has = function(key ) {
        var v = iterable.get(key, NOT_SET);
        return v !== NOT_SET && !!predicate.call(context, v, key, iterable);
      };
      filterSequence.get = function(key, notSetValue)  {
        var v = iterable.get(key, NOT_SET);
        return v !== NOT_SET && predicate.call(context, v, key, iterable) ?
          v : notSetValue;
      };
    }
    filterSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      var iterations = 0;
      iterable.__iterate(function(v, k, c)  {
        if (predicate.call(context, v, k, c)) {
          iterations++;
          return fn(v, useKeys ? k : iterations - 1, this$0);
        }
      }, reverse);
      return iterations;
    };
    filterSequence.__iteratorUncached = function (type, reverse) {
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      var iterations = 0;
      return new Iterator(function()  {
        while (true) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          var entry = step.value;
          var key = entry[0];
          var value = entry[1];
          if (predicate.call(context, value, key, iterable)) {
            return iteratorValue(type, useKeys ? key : iterations++, value, step);
          }
        }
      });
    };
    return filterSequence;
  }


  function countByFactory(iterable, grouper, context) {
    var groups = Map().asMutable();
    iterable.__iterate(function(v, k)  {
      groups.update(
        grouper.call(context, v, k, iterable),
        0,
        function(a ) {return a + 1}
      );
    });
    return groups.asImmutable();
  }


  function groupByFactory(iterable, grouper, context) {
    var isKeyedIter = isKeyed(iterable);
    var groups = (isOrdered(iterable) ? OrderedMap() : Map()).asMutable();
    iterable.__iterate(function(v, k)  {
      groups.update(
        grouper.call(context, v, k, iterable),
        function(a ) {return (a = a || [], a.push(isKeyedIter ? [k, v] : v), a)}
      );
    });
    var coerce = iterableClass(iterable);
    return groups.map(function(arr ) {return reify(iterable, coerce(arr))});
  }


  function sliceFactory(iterable, begin, end, useKeys) {
    var originalSize = iterable.size;

    // Sanitize begin & end using this shorthand for ToInt32(argument)
    // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
    if (begin !== undefined) {
      begin = begin | 0;
    }
    if (end !== undefined) {
      end = end | 0;
    }

    if (wholeSlice(begin, end, originalSize)) {
      return iterable;
    }

    var resolvedBegin = resolveBegin(begin, originalSize);
    var resolvedEnd = resolveEnd(end, originalSize);

    // begin or end will be NaN if they were provided as negative numbers and
    // this iterable's size is unknown. In that case, cache first so there is
    // a known size and these do not resolve to NaN.
    if (resolvedBegin !== resolvedBegin || resolvedEnd !== resolvedEnd) {
      return sliceFactory(iterable.toSeq().cacheResult(), begin, end, useKeys);
    }

    // Note: resolvedEnd is undefined when the original sequence's length is
    // unknown and this slice did not supply an end and should contain all
    // elements after resolvedBegin.
    // In that case, resolvedSize will be NaN and sliceSize will remain undefined.
    var resolvedSize = resolvedEnd - resolvedBegin;
    var sliceSize;
    if (resolvedSize === resolvedSize) {
      sliceSize = resolvedSize < 0 ? 0 : resolvedSize;
    }

    var sliceSeq = makeSequence(iterable);

    // If iterable.size is undefined, the size of the realized sliceSeq is
    // unknown at this point unless the number of items to slice is 0
    sliceSeq.size = sliceSize === 0 ? sliceSize : iterable.size && sliceSize || undefined;

    if (!useKeys && isSeq(iterable) && sliceSize >= 0) {
      sliceSeq.get = function (index, notSetValue) {
        index = wrapIndex(this, index);
        return index >= 0 && index < sliceSize ?
          iterable.get(index + resolvedBegin, notSetValue) :
          notSetValue;
      };
    }

    sliceSeq.__iterateUncached = function(fn, reverse) {var this$0 = this;
      if (sliceSize === 0) {
        return 0;
      }
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var skipped = 0;
      var isSkipping = true;
      var iterations = 0;
      iterable.__iterate(function(v, k)  {
        if (!(isSkipping && (isSkipping = skipped++ < resolvedBegin))) {
          iterations++;
          return fn(v, useKeys ? k : iterations - 1, this$0) !== false &&
                 iterations !== sliceSize;
        }
      });
      return iterations;
    };

    sliceSeq.__iteratorUncached = function(type, reverse) {
      if (sliceSize !== 0 && reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      // Don't bother instantiating parent iterator if taking 0.
      var iterator = sliceSize !== 0 && iterable.__iterator(type, reverse);
      var skipped = 0;
      var iterations = 0;
      return new Iterator(function()  {
        while (skipped++ < resolvedBegin) {
          iterator.next();
        }
        if (++iterations > sliceSize) {
          return iteratorDone();
        }
        var step = iterator.next();
        if (useKeys || type === ITERATE_VALUES) {
          return step;
        } else if (type === ITERATE_KEYS) {
          return iteratorValue(type, iterations - 1, undefined, step);
        } else {
          return iteratorValue(type, iterations - 1, step.value[1], step);
        }
      });
    };

    return sliceSeq;
  }


  function takeWhileFactory(iterable, predicate, context) {
    var takeSequence = makeSequence(iterable);
    takeSequence.__iterateUncached = function(fn, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterations = 0;
      iterable.__iterate(function(v, k, c) 
        {return predicate.call(context, v, k, c) && ++iterations && fn(v, k, this$0)}
      );
      return iterations;
    };
    takeSequence.__iteratorUncached = function(type, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      var iterating = true;
      return new Iterator(function()  {
        if (!iterating) {
          return iteratorDone();
        }
        var step = iterator.next();
        if (step.done) {
          return step;
        }
        var entry = step.value;
        var k = entry[0];
        var v = entry[1];
        if (!predicate.call(context, v, k, this$0)) {
          iterating = false;
          return iteratorDone();
        }
        return type === ITERATE_ENTRIES ? step :
          iteratorValue(type, k, v, step);
      });
    };
    return takeSequence;
  }


  function skipWhileFactory(iterable, predicate, context, useKeys) {
    var skipSequence = makeSequence(iterable);
    skipSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var isSkipping = true;
      var iterations = 0;
      iterable.__iterate(function(v, k, c)  {
        if (!(isSkipping && (isSkipping = predicate.call(context, v, k, c)))) {
          iterations++;
          return fn(v, useKeys ? k : iterations - 1, this$0);
        }
      });
      return iterations;
    };
    skipSequence.__iteratorUncached = function(type, reverse) {var this$0 = this;
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);
      var skipping = true;
      var iterations = 0;
      return new Iterator(function()  {
        var step, k, v;
        do {
          step = iterator.next();
          if (step.done) {
            if (useKeys || type === ITERATE_VALUES) {
              return step;
            } else if (type === ITERATE_KEYS) {
              return iteratorValue(type, iterations++, undefined, step);
            } else {
              return iteratorValue(type, iterations++, step.value[1], step);
            }
          }
          var entry = step.value;
          k = entry[0];
          v = entry[1];
          skipping && (skipping = predicate.call(context, v, k, this$0));
        } while (skipping);
        return type === ITERATE_ENTRIES ? step :
          iteratorValue(type, k, v, step);
      });
    };
    return skipSequence;
  }


  function concatFactory(iterable, values) {
    var isKeyedIterable = isKeyed(iterable);
    var iters = [iterable].concat(values).map(function(v ) {
      if (!isIterable(v)) {
        v = isKeyedIterable ?
          keyedSeqFromValue(v) :
          indexedSeqFromValue(Array.isArray(v) ? v : [v]);
      } else if (isKeyedIterable) {
        v = KeyedIterable(v);
      }
      return v;
    }).filter(function(v ) {return v.size !== 0});

    if (iters.length === 0) {
      return iterable;
    }

    if (iters.length === 1) {
      var singleton = iters[0];
      if (singleton === iterable ||
          isKeyedIterable && isKeyed(singleton) ||
          isIndexed(iterable) && isIndexed(singleton)) {
        return singleton;
      }
    }

    var concatSeq = new ArraySeq(iters);
    if (isKeyedIterable) {
      concatSeq = concatSeq.toKeyedSeq();
    } else if (!isIndexed(iterable)) {
      concatSeq = concatSeq.toSetSeq();
    }
    concatSeq = concatSeq.flatten(true);
    concatSeq.size = iters.reduce(
      function(sum, seq)  {
        if (sum !== undefined) {
          var size = seq.size;
          if (size !== undefined) {
            return sum + size;
          }
        }
      },
      0
    );
    return concatSeq;
  }


  function flattenFactory(iterable, depth, useKeys) {
    var flatSequence = makeSequence(iterable);
    flatSequence.__iterateUncached = function(fn, reverse) {
      var iterations = 0;
      var stopped = false;
      function flatDeep(iter, currentDepth) {var this$0 = this;
        iter.__iterate(function(v, k)  {
          if ((!depth || currentDepth < depth) && isIterable(v)) {
            flatDeep(v, currentDepth + 1);
          } else if (fn(v, useKeys ? k : iterations++, this$0) === false) {
            stopped = true;
          }
          return !stopped;
        }, reverse);
      }
      flatDeep(iterable, 0);
      return iterations;
    };
    flatSequence.__iteratorUncached = function(type, reverse) {
      var iterator = iterable.__iterator(type, reverse);
      var stack = [];
      var iterations = 0;
      return new Iterator(function()  {
        while (iterator) {
          var step = iterator.next();
          if (step.done !== false) {
            iterator = stack.pop();
            continue;
          }
          var v = step.value;
          if (type === ITERATE_ENTRIES) {
            v = v[1];
          }
          if ((!depth || stack.length < depth) && isIterable(v)) {
            stack.push(iterator);
            iterator = v.__iterator(type, reverse);
          } else {
            return useKeys ? step : iteratorValue(type, iterations++, v, step);
          }
        }
        return iteratorDone();
      });
    };
    return flatSequence;
  }


  function flatMapFactory(iterable, mapper, context) {
    var coerce = iterableClass(iterable);
    return iterable.toSeq().map(
      function(v, k)  {return coerce(mapper.call(context, v, k, iterable))}
    ).flatten(true);
  }


  function interposeFactory(iterable, separator) {
    var interposedSequence = makeSequence(iterable);
    interposedSequence.size = iterable.size && iterable.size * 2 -1;
    interposedSequence.__iterateUncached = function(fn, reverse) {var this$0 = this;
      var iterations = 0;
      iterable.__iterate(function(v, k) 
        {return (!iterations || fn(separator, iterations++, this$0) !== false) &&
        fn(v, iterations++, this$0) !== false},
        reverse
      );
      return iterations;
    };
    interposedSequence.__iteratorUncached = function(type, reverse) {
      var iterator = iterable.__iterator(ITERATE_VALUES, reverse);
      var iterations = 0;
      var step;
      return new Iterator(function()  {
        if (!step || iterations % 2) {
          step = iterator.next();
          if (step.done) {
            return step;
          }
        }
        return iterations % 2 ?
          iteratorValue(type, iterations++, separator) :
          iteratorValue(type, iterations++, step.value, step);
      });
    };
    return interposedSequence;
  }


  function sortFactory(iterable, comparator, mapper) {
    if (!comparator) {
      comparator = defaultComparator;
    }
    var isKeyedIterable = isKeyed(iterable);
    var index = 0;
    var entries = iterable.toSeq().map(
      function(v, k)  {return [k, v, index++, mapper ? mapper(v, k, iterable) : v]}
    ).toArray();
    entries.sort(function(a, b)  {return comparator(a[3], b[3]) || a[2] - b[2]}).forEach(
      isKeyedIterable ?
      function(v, i)  { entries[i].length = 2; } :
      function(v, i)  { entries[i] = v[1]; }
    );
    return isKeyedIterable ? KeyedSeq(entries) :
      isIndexed(iterable) ? IndexedSeq(entries) :
      SetSeq(entries);
  }


  function maxFactory(iterable, comparator, mapper) {
    if (!comparator) {
      comparator = defaultComparator;
    }
    if (mapper) {
      var entry = iterable.toSeq()
        .map(function(v, k)  {return [v, mapper(v, k, iterable)]})
        .reduce(function(a, b)  {return maxCompare(comparator, a[1], b[1]) ? b : a});
      return entry && entry[0];
    } else {
      return iterable.reduce(function(a, b)  {return maxCompare(comparator, a, b) ? b : a});
    }
  }

  function maxCompare(comparator, a, b) {
    var comp = comparator(b, a);
    // b is considered the new max if the comparator declares them equal, but
    // they are not equal and b is in fact a nullish value.
    return (comp === 0 && b !== a && (b === undefined || b === null || b !== b)) || comp > 0;
  }


  function zipWithFactory(keyIter, zipper, iters) {
    var zipSequence = makeSequence(keyIter);
    zipSequence.size = new ArraySeq(iters).map(function(i ) {return i.size}).min();
    // Note: this a generic base implementation of __iterate in terms of
    // __iterator which may be more generically useful in the future.
    zipSequence.__iterate = function(fn, reverse) {
      /* generic:
      var iterator = this.__iterator(ITERATE_ENTRIES, reverse);
      var step;
      var iterations = 0;
      while (!(step = iterator.next()).done) {
        iterations++;
        if (fn(step.value[1], step.value[0], this) === false) {
          break;
        }
      }
      return iterations;
      */
      // indexed:
      var iterator = this.__iterator(ITERATE_VALUES, reverse);
      var step;
      var iterations = 0;
      while (!(step = iterator.next()).done) {
        if (fn(step.value, iterations++, this) === false) {
          break;
        }
      }
      return iterations;
    };
    zipSequence.__iteratorUncached = function(type, reverse) {
      var iterators = iters.map(function(i )
        {return (i = Iterable(i), getIterator(reverse ? i.reverse() : i))}
      );
      var iterations = 0;
      var isDone = false;
      return new Iterator(function()  {
        var steps;
        if (!isDone) {
          steps = iterators.map(function(i ) {return i.next()});
          isDone = steps.some(function(s ) {return s.done});
        }
        if (isDone) {
          return iteratorDone();
        }
        return iteratorValue(
          type,
          iterations++,
          zipper.apply(null, steps.map(function(s ) {return s.value}))
        );
      });
    };
    return zipSequence
  }


  // #pragma Helper Functions

  function reify(iter, seq) {
    return isSeq(iter) ? seq : iter.constructor(seq);
  }

  function validateEntry(entry) {
    if (entry !== Object(entry)) {
      throw new TypeError('Expected [K, V] tuple: ' + entry);
    }
  }

  function resolveSize(iter) {
    assertNotInfinite(iter.size);
    return ensureSize(iter);
  }

  function iterableClass(iterable) {
    return isKeyed(iterable) ? KeyedIterable :
      isIndexed(iterable) ? IndexedIterable :
      SetIterable;
  }

  function makeSequence(iterable) {
    return Object.create(
      (
        isKeyed(iterable) ? KeyedSeq :
        isIndexed(iterable) ? IndexedSeq :
        SetSeq
      ).prototype
    );
  }

  function cacheResultThrough() {
    if (this._iter.cacheResult) {
      this._iter.cacheResult();
      this.size = this._iter.size;
      return this;
    } else {
      return Seq.prototype.cacheResult.call(this);
    }
  }

  function defaultComparator(a, b) {
    return a > b ? 1 : a < b ? -1 : 0;
  }

  function forceIterator(keyPath) {
    var iter = getIterator(keyPath);
    if (!iter) {
      // Array might not be iterable in this environment, so we need a fallback
      // to our wrapped type.
      if (!isArrayLike(keyPath)) {
        throw new TypeError('Expected iterable or array-like: ' + keyPath);
      }
      iter = getIterator(Iterable(keyPath));
    }
    return iter;
  }

  createClass(Record, KeyedCollection);

    function Record(defaultValues, name) {
      var hasInitialized;

      var RecordType = function Record(values) {
        if (values instanceof RecordType) {
          return values;
        }
        if (!(this instanceof RecordType)) {
          return new RecordType(values);
        }
        if (!hasInitialized) {
          hasInitialized = true;
          var keys = Object.keys(defaultValues);
          setProps(RecordTypePrototype, keys);
          RecordTypePrototype.size = keys.length;
          RecordTypePrototype._name = name;
          RecordTypePrototype._keys = keys;
          RecordTypePrototype._defaultValues = defaultValues;
        }
        this._map = Map(values);
      };

      var RecordTypePrototype = RecordType.prototype = Object.create(RecordPrototype);
      RecordTypePrototype.constructor = RecordType;

      return RecordType;
    }

    Record.prototype.toString = function() {
      return this.__toString(recordName(this) + ' {', '}');
    };

    // @pragma Access

    Record.prototype.has = function(k) {
      return this._defaultValues.hasOwnProperty(k);
    };

    Record.prototype.get = function(k, notSetValue) {
      if (!this.has(k)) {
        return notSetValue;
      }
      var defaultVal = this._defaultValues[k];
      return this._map ? this._map.get(k, defaultVal) : defaultVal;
    };

    // @pragma Modification

    Record.prototype.clear = function() {
      if (this.__ownerID) {
        this._map && this._map.clear();
        return this;
      }
      var RecordType = this.constructor;
      return RecordType._empty || (RecordType._empty = makeRecord(this, emptyMap()));
    };

    Record.prototype.set = function(k, v) {
      if (!this.has(k)) {
        throw new Error('Cannot set unknown key "' + k + '" on ' + recordName(this));
      }
      var newMap = this._map && this._map.set(k, v);
      if (this.__ownerID || newMap === this._map) {
        return this;
      }
      return makeRecord(this, newMap);
    };

    Record.prototype.remove = function(k) {
      if (!this.has(k)) {
        return this;
      }
      var newMap = this._map && this._map.remove(k);
      if (this.__ownerID || newMap === this._map) {
        return this;
      }
      return makeRecord(this, newMap);
    };

    Record.prototype.wasAltered = function() {
      return this._map.wasAltered();
    };

    Record.prototype.__iterator = function(type, reverse) {var this$0 = this;
      return KeyedIterable(this._defaultValues).map(function(_, k)  {return this$0.get(k)}).__iterator(type, reverse);
    };

    Record.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return KeyedIterable(this._defaultValues).map(function(_, k)  {return this$0.get(k)}).__iterate(fn, reverse);
    };

    Record.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      var newMap = this._map && this._map.__ensureOwner(ownerID);
      if (!ownerID) {
        this.__ownerID = ownerID;
        this._map = newMap;
        return this;
      }
      return makeRecord(this, newMap, ownerID);
    };


  var RecordPrototype = Record.prototype;
  RecordPrototype[DELETE] = RecordPrototype.remove;
  RecordPrototype.deleteIn =
  RecordPrototype.removeIn = MapPrototype.removeIn;
  RecordPrototype.merge = MapPrototype.merge;
  RecordPrototype.mergeWith = MapPrototype.mergeWith;
  RecordPrototype.mergeIn = MapPrototype.mergeIn;
  RecordPrototype.mergeDeep = MapPrototype.mergeDeep;
  RecordPrototype.mergeDeepWith = MapPrototype.mergeDeepWith;
  RecordPrototype.mergeDeepIn = MapPrototype.mergeDeepIn;
  RecordPrototype.setIn = MapPrototype.setIn;
  RecordPrototype.update = MapPrototype.update;
  RecordPrototype.updateIn = MapPrototype.updateIn;
  RecordPrototype.withMutations = MapPrototype.withMutations;
  RecordPrototype.asMutable = MapPrototype.asMutable;
  RecordPrototype.asImmutable = MapPrototype.asImmutable;


  function makeRecord(likeRecord, map, ownerID) {
    var record = Object.create(Object.getPrototypeOf(likeRecord));
    record._map = map;
    record.__ownerID = ownerID;
    return record;
  }

  function recordName(record) {
    return record._name || record.constructor.name || 'Record';
  }

  function setProps(prototype, names) {
    try {
      names.forEach(setProp.bind(undefined, prototype));
    } catch (error) {
      // Object.defineProperty failed. Probably IE8.
    }
  }

  function setProp(prototype, name) {
    Object.defineProperty(prototype, name, {
      get: function() {
        return this.get(name);
      },
      set: function(value) {
        invariant(this.__ownerID, 'Cannot set on an immutable record.');
        this.set(name, value);
      }
    });
  }

  createClass(Set, SetCollection);

    // @pragma Construction

    function Set(value) {
      return value === null || value === undefined ? emptySet() :
        isSet(value) && !isOrdered(value) ? value :
        emptySet().withMutations(function(set ) {
          var iter = SetIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v ) {return set.add(v)});
        });
    }

    Set.of = function(/*...values*/) {
      return this(arguments);
    };

    Set.fromKeys = function(value) {
      return this(KeyedIterable(value).keySeq());
    };

    Set.prototype.toString = function() {
      return this.__toString('Set {', '}');
    };

    // @pragma Access

    Set.prototype.has = function(value) {
      return this._map.has(value);
    };

    // @pragma Modification

    Set.prototype.add = function(value) {
      return updateSet(this, this._map.set(value, true));
    };

    Set.prototype.remove = function(value) {
      return updateSet(this, this._map.remove(value));
    };

    Set.prototype.clear = function() {
      return updateSet(this, this._map.clear());
    };

    // @pragma Composition

    Set.prototype.union = function() {var iters = SLICE$0.call(arguments, 0);
      iters = iters.filter(function(x ) {return x.size !== 0});
      if (iters.length === 0) {
        return this;
      }
      if (this.size === 0 && !this.__ownerID && iters.length === 1) {
        return this.constructor(iters[0]);
      }
      return this.withMutations(function(set ) {
        for (var ii = 0; ii < iters.length; ii++) {
          SetIterable(iters[ii]).forEach(function(value ) {return set.add(value)});
        }
      });
    };

    Set.prototype.intersect = function() {var iters = SLICE$0.call(arguments, 0);
      if (iters.length === 0) {
        return this;
      }
      iters = iters.map(function(iter ) {return SetIterable(iter)});
      var originalSet = this;
      return this.withMutations(function(set ) {
        originalSet.forEach(function(value ) {
          if (!iters.every(function(iter ) {return iter.includes(value)})) {
            set.remove(value);
          }
        });
      });
    };

    Set.prototype.subtract = function() {var iters = SLICE$0.call(arguments, 0);
      if (iters.length === 0) {
        return this;
      }
      iters = iters.map(function(iter ) {return SetIterable(iter)});
      var originalSet = this;
      return this.withMutations(function(set ) {
        originalSet.forEach(function(value ) {
          if (iters.some(function(iter ) {return iter.includes(value)})) {
            set.remove(value);
          }
        });
      });
    };

    Set.prototype.merge = function() {
      return this.union.apply(this, arguments);
    };

    Set.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);
      return this.union.apply(this, iters);
    };

    Set.prototype.sort = function(comparator) {
      // Late binding
      return OrderedSet(sortFactory(this, comparator));
    };

    Set.prototype.sortBy = function(mapper, comparator) {
      // Late binding
      return OrderedSet(sortFactory(this, comparator, mapper));
    };

    Set.prototype.wasAltered = function() {
      return this._map.wasAltered();
    };

    Set.prototype.__iterate = function(fn, reverse) {var this$0 = this;
      return this._map.__iterate(function(_, k)  {return fn(k, k, this$0)}, reverse);
    };

    Set.prototype.__iterator = function(type, reverse) {
      return this._map.map(function(_, k)  {return k}).__iterator(type, reverse);
    };

    Set.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      var newMap = this._map.__ensureOwner(ownerID);
      if (!ownerID) {
        this.__ownerID = ownerID;
        this._map = newMap;
        return this;
      }
      return this.__make(newMap, ownerID);
    };


  function isSet(maybeSet) {
    return !!(maybeSet && maybeSet[IS_SET_SENTINEL]);
  }

  Set.isSet = isSet;

  var IS_SET_SENTINEL = '@@__IMMUTABLE_SET__@@';

  var SetPrototype = Set.prototype;
  SetPrototype[IS_SET_SENTINEL] = true;
  SetPrototype[DELETE] = SetPrototype.remove;
  SetPrototype.mergeDeep = SetPrototype.merge;
  SetPrototype.mergeDeepWith = SetPrototype.mergeWith;
  SetPrototype.withMutations = MapPrototype.withMutations;
  SetPrototype.asMutable = MapPrototype.asMutable;
  SetPrototype.asImmutable = MapPrototype.asImmutable;

  SetPrototype.__empty = emptySet;
  SetPrototype.__make = makeSet;

  function updateSet(set, newMap) {
    if (set.__ownerID) {
      set.size = newMap.size;
      set._map = newMap;
      return set;
    }
    return newMap === set._map ? set :
      newMap.size === 0 ? set.__empty() :
      set.__make(newMap);
  }

  function makeSet(map, ownerID) {
    var set = Object.create(SetPrototype);
    set.size = map ? map.size : 0;
    set._map = map;
    set.__ownerID = ownerID;
    return set;
  }

  var EMPTY_SET;
  function emptySet() {
    return EMPTY_SET || (EMPTY_SET = makeSet(emptyMap()));
  }

  createClass(OrderedSet, Set);

    // @pragma Construction

    function OrderedSet(value) {
      return value === null || value === undefined ? emptyOrderedSet() :
        isOrderedSet(value) ? value :
        emptyOrderedSet().withMutations(function(set ) {
          var iter = SetIterable(value);
          assertNotInfinite(iter.size);
          iter.forEach(function(v ) {return set.add(v)});
        });
    }

    OrderedSet.of = function(/*...values*/) {
      return this(arguments);
    };

    OrderedSet.fromKeys = function(value) {
      return this(KeyedIterable(value).keySeq());
    };

    OrderedSet.prototype.toString = function() {
      return this.__toString('OrderedSet {', '}');
    };


  function isOrderedSet(maybeOrderedSet) {
    return isSet(maybeOrderedSet) && isOrdered(maybeOrderedSet);
  }

  OrderedSet.isOrderedSet = isOrderedSet;

  var OrderedSetPrototype = OrderedSet.prototype;
  OrderedSetPrototype[IS_ORDERED_SENTINEL] = true;

  OrderedSetPrototype.__empty = emptyOrderedSet;
  OrderedSetPrototype.__make = makeOrderedSet;

  function makeOrderedSet(map, ownerID) {
    var set = Object.create(OrderedSetPrototype);
    set.size = map ? map.size : 0;
    set._map = map;
    set.__ownerID = ownerID;
    return set;
  }

  var EMPTY_ORDERED_SET;
  function emptyOrderedSet() {
    return EMPTY_ORDERED_SET || (EMPTY_ORDERED_SET = makeOrderedSet(emptyOrderedMap()));
  }

  createClass(Stack, IndexedCollection);

    // @pragma Construction

    function Stack(value) {
      return value === null || value === undefined ? emptyStack() :
        isStack(value) ? value :
        emptyStack().unshiftAll(value);
    }

    Stack.of = function(/*...values*/) {
      return this(arguments);
    };

    Stack.prototype.toString = function() {
      return this.__toString('Stack [', ']');
    };

    // @pragma Access

    Stack.prototype.get = function(index, notSetValue) {
      var head = this._head;
      index = wrapIndex(this, index);
      while (head && index--) {
        head = head.next;
      }
      return head ? head.value : notSetValue;
    };

    Stack.prototype.peek = function() {
      return this._head && this._head.value;
    };

    // @pragma Modification

    Stack.prototype.push = function(/*...values*/) {
      if (arguments.length === 0) {
        return this;
      }
      var newSize = this.size + arguments.length;
      var head = this._head;
      for (var ii = arguments.length - 1; ii >= 0; ii--) {
        head = {
          value: arguments[ii],
          next: head
        };
      }
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    Stack.prototype.pushAll = function(iter) {
      iter = IndexedIterable(iter);
      if (iter.size === 0) {
        return this;
      }
      assertNotInfinite(iter.size);
      var newSize = this.size;
      var head = this._head;
      iter.reverse().forEach(function(value ) {
        newSize++;
        head = {
          value: value,
          next: head
        };
      });
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    Stack.prototype.pop = function() {
      return this.slice(1);
    };

    Stack.prototype.unshift = function(/*...values*/) {
      return this.push.apply(this, arguments);
    };

    Stack.prototype.unshiftAll = function(iter) {
      return this.pushAll(iter);
    };

    Stack.prototype.shift = function() {
      return this.pop.apply(this, arguments);
    };

    Stack.prototype.clear = function() {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._head = undefined;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyStack();
    };

    Stack.prototype.slice = function(begin, end) {
      if (wholeSlice(begin, end, this.size)) {
        return this;
      }
      var resolvedBegin = resolveBegin(begin, this.size);
      var resolvedEnd = resolveEnd(end, this.size);
      if (resolvedEnd !== this.size) {
        // super.slice(begin, end);
        return IndexedCollection.prototype.slice.call(this, begin, end);
      }
      var newSize = this.size - resolvedBegin;
      var head = this._head;
      while (resolvedBegin--) {
        head = head.next;
      }
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    // @pragma Mutability

    Stack.prototype.__ensureOwner = function(ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        this.__ownerID = ownerID;
        this.__altered = false;
        return this;
      }
      return makeStack(this.size, this._head, ownerID, this.__hash);
    };

    // @pragma Iteration

    Stack.prototype.__iterate = function(fn, reverse) {
      if (reverse) {
        return this.reverse().__iterate(fn);
      }
      var iterations = 0;
      var node = this._head;
      while (node) {
        if (fn(node.value, iterations++, this) === false) {
          break;
        }
        node = node.next;
      }
      return iterations;
    };

    Stack.prototype.__iterator = function(type, reverse) {
      if (reverse) {
        return this.reverse().__iterator(type);
      }
      var iterations = 0;
      var node = this._head;
      return new Iterator(function()  {
        if (node) {
          var value = node.value;
          node = node.next;
          return iteratorValue(type, iterations++, value);
        }
        return iteratorDone();
      });
    };


  function isStack(maybeStack) {
    return !!(maybeStack && maybeStack[IS_STACK_SENTINEL]);
  }

  Stack.isStack = isStack;

  var IS_STACK_SENTINEL = '@@__IMMUTABLE_STACK__@@';

  var StackPrototype = Stack.prototype;
  StackPrototype[IS_STACK_SENTINEL] = true;
  StackPrototype.withMutations = MapPrototype.withMutations;
  StackPrototype.asMutable = MapPrototype.asMutable;
  StackPrototype.asImmutable = MapPrototype.asImmutable;
  StackPrototype.wasAltered = MapPrototype.wasAltered;


  function makeStack(size, head, ownerID, hash) {
    var map = Object.create(StackPrototype);
    map.size = size;
    map._head = head;
    map.__ownerID = ownerID;
    map.__hash = hash;
    map.__altered = false;
    return map;
  }

  var EMPTY_STACK;
  function emptyStack() {
    return EMPTY_STACK || (EMPTY_STACK = makeStack(0));
  }

  /**
   * Contributes additional methods to a constructor
   */
  function mixin(ctor, methods) {
    var keyCopier = function(key ) { ctor.prototype[key] = methods[key]; };
    Object.keys(methods).forEach(keyCopier);
    Object.getOwnPropertySymbols &&
      Object.getOwnPropertySymbols(methods).forEach(keyCopier);
    return ctor;
  }

  Iterable.Iterator = Iterator;

  mixin(Iterable, {

    // ### Conversion to other types

    toArray: function() {
      assertNotInfinite(this.size);
      var array = new Array(this.size || 0);
      this.valueSeq().__iterate(function(v, i)  { array[i] = v; });
      return array;
    },

    toIndexedSeq: function() {
      return new ToIndexedSequence(this);
    },

    toJS: function() {
      return this.toSeq().map(
        function(value ) {return value && typeof value.toJS === 'function' ? value.toJS() : value}
      ).__toJS();
    },

    toJSON: function() {
      return this.toSeq().map(
        function(value ) {return value && typeof value.toJSON === 'function' ? value.toJSON() : value}
      ).__toJS();
    },

    toKeyedSeq: function() {
      return new ToKeyedSequence(this, true);
    },

    toMap: function() {
      // Use Late Binding here to solve the circular dependency.
      return Map(this.toKeyedSeq());
    },

    toObject: function() {
      assertNotInfinite(this.size);
      var object = {};
      this.__iterate(function(v, k)  { object[k] = v; });
      return object;
    },

    toOrderedMap: function() {
      // Use Late Binding here to solve the circular dependency.
      return OrderedMap(this.toKeyedSeq());
    },

    toOrderedSet: function() {
      // Use Late Binding here to solve the circular dependency.
      return OrderedSet(isKeyed(this) ? this.valueSeq() : this);
    },

    toSet: function() {
      // Use Late Binding here to solve the circular dependency.
      return Set(isKeyed(this) ? this.valueSeq() : this);
    },

    toSetSeq: function() {
      return new ToSetSequence(this);
    },

    toSeq: function() {
      return isIndexed(this) ? this.toIndexedSeq() :
        isKeyed(this) ? this.toKeyedSeq() :
        this.toSetSeq();
    },

    toStack: function() {
      // Use Late Binding here to solve the circular dependency.
      return Stack(isKeyed(this) ? this.valueSeq() : this);
    },

    toList: function() {
      // Use Late Binding here to solve the circular dependency.
      return List(isKeyed(this) ? this.valueSeq() : this);
    },


    // ### Common JavaScript methods and properties

    toString: function() {
      return '[Iterable]';
    },

    __toString: function(head, tail) {
      if (this.size === 0) {
        return head + tail;
      }
      return head + ' ' + this.toSeq().map(this.__toStringMapper).join(', ') + ' ' + tail;
    },


    // ### ES6 Collection methods (ES6 Array and Map)

    concat: function() {var values = SLICE$0.call(arguments, 0);
      return reify(this, concatFactory(this, values));
    },

    includes: function(searchValue) {
      return this.some(function(value ) {return is(value, searchValue)});
    },

    entries: function() {
      return this.__iterator(ITERATE_ENTRIES);
    },

    every: function(predicate, context) {
      assertNotInfinite(this.size);
      var returnValue = true;
      this.__iterate(function(v, k, c)  {
        if (!predicate.call(context, v, k, c)) {
          returnValue = false;
          return false;
        }
      });
      return returnValue;
    },

    filter: function(predicate, context) {
      return reify(this, filterFactory(this, predicate, context, true));
    },

    find: function(predicate, context, notSetValue) {
      var entry = this.findEntry(predicate, context);
      return entry ? entry[1] : notSetValue;
    },

    findEntry: function(predicate, context) {
      var found;
      this.__iterate(function(v, k, c)  {
        if (predicate.call(context, v, k, c)) {
          found = [k, v];
          return false;
        }
      });
      return found;
    },

    findLastEntry: function(predicate, context) {
      return this.toSeq().reverse().findEntry(predicate, context);
    },

    forEach: function(sideEffect, context) {
      assertNotInfinite(this.size);
      return this.__iterate(context ? sideEffect.bind(context) : sideEffect);
    },

    join: function(separator) {
      assertNotInfinite(this.size);
      separator = separator !== undefined ? '' + separator : ',';
      var joined = '';
      var isFirst = true;
      this.__iterate(function(v ) {
        isFirst ? (isFirst = false) : (joined += separator);
        joined += v !== null && v !== undefined ? v.toString() : '';
      });
      return joined;
    },

    keys: function() {
      return this.__iterator(ITERATE_KEYS);
    },

    map: function(mapper, context) {
      return reify(this, mapFactory(this, mapper, context));
    },

    reduce: function(reducer, initialReduction, context) {
      assertNotInfinite(this.size);
      var reduction;
      var useFirst;
      if (arguments.length < 2) {
        useFirst = true;
      } else {
        reduction = initialReduction;
      }
      this.__iterate(function(v, k, c)  {
        if (useFirst) {
          useFirst = false;
          reduction = v;
        } else {
          reduction = reducer.call(context, reduction, v, k, c);
        }
      });
      return reduction;
    },

    reduceRight: function(reducer, initialReduction, context) {
      var reversed = this.toKeyedSeq().reverse();
      return reversed.reduce.apply(reversed, arguments);
    },

    reverse: function() {
      return reify(this, reverseFactory(this, true));
    },

    slice: function(begin, end) {
      return reify(this, sliceFactory(this, begin, end, true));
    },

    some: function(predicate, context) {
      return !this.every(not(predicate), context);
    },

    sort: function(comparator) {
      return reify(this, sortFactory(this, comparator));
    },

    values: function() {
      return this.__iterator(ITERATE_VALUES);
    },


    // ### More sequential methods

    butLast: function() {
      return this.slice(0, -1);
    },

    isEmpty: function() {
      return this.size !== undefined ? this.size === 0 : !this.some(function()  {return true});
    },

    count: function(predicate, context) {
      return ensureSize(
        predicate ? this.toSeq().filter(predicate, context) : this
      );
    },

    countBy: function(grouper, context) {
      return countByFactory(this, grouper, context);
    },

    equals: function(other) {
      return deepEqual(this, other);
    },

    entrySeq: function() {
      var iterable = this;
      if (iterable._cache) {
        // We cache as an entries array, so we can just return the cache!
        return new ArraySeq(iterable._cache);
      }
      var entriesSequence = iterable.toSeq().map(entryMapper).toIndexedSeq();
      entriesSequence.fromEntrySeq = function()  {return iterable.toSeq()};
      return entriesSequence;
    },

    filterNot: function(predicate, context) {
      return this.filter(not(predicate), context);
    },

    findLast: function(predicate, context, notSetValue) {
      return this.toKeyedSeq().reverse().find(predicate, context, notSetValue);
    },

    first: function() {
      return this.find(returnTrue);
    },

    flatMap: function(mapper, context) {
      return reify(this, flatMapFactory(this, mapper, context));
    },

    flatten: function(depth) {
      return reify(this, flattenFactory(this, depth, true));
    },

    fromEntrySeq: function() {
      return new FromEntriesSequence(this);
    },

    get: function(searchKey, notSetValue) {
      return this.find(function(_, key)  {return is(key, searchKey)}, undefined, notSetValue);
    },

    getIn: function(searchKeyPath, notSetValue) {
      var nested = this;
      // Note: in an ES6 environment, we would prefer:
      // for (var key of searchKeyPath) {
      var iter = forceIterator(searchKeyPath);
      var step;
      while (!(step = iter.next()).done) {
        var key = step.value;
        nested = nested && nested.get ? nested.get(key, NOT_SET) : NOT_SET;
        if (nested === NOT_SET) {
          return notSetValue;
        }
      }
      return nested;
    },

    groupBy: function(grouper, context) {
      return groupByFactory(this, grouper, context);
    },

    has: function(searchKey) {
      return this.get(searchKey, NOT_SET) !== NOT_SET;
    },

    hasIn: function(searchKeyPath) {
      return this.getIn(searchKeyPath, NOT_SET) !== NOT_SET;
    },

    isSubset: function(iter) {
      iter = typeof iter.includes === 'function' ? iter : Iterable(iter);
      return this.every(function(value ) {return iter.includes(value)});
    },

    isSuperset: function(iter) {
      iter = typeof iter.isSubset === 'function' ? iter : Iterable(iter);
      return iter.isSubset(this);
    },

    keySeq: function() {
      return this.toSeq().map(keyMapper).toIndexedSeq();
    },

    last: function() {
      return this.toSeq().reverse().first();
    },

    max: function(comparator) {
      return maxFactory(this, comparator);
    },

    maxBy: function(mapper, comparator) {
      return maxFactory(this, comparator, mapper);
    },

    min: function(comparator) {
      return maxFactory(this, comparator ? neg(comparator) : defaultNegComparator);
    },

    minBy: function(mapper, comparator) {
      return maxFactory(this, comparator ? neg(comparator) : defaultNegComparator, mapper);
    },

    rest: function() {
      return this.slice(1);
    },

    skip: function(amount) {
      return this.slice(Math.max(0, amount));
    },

    skipLast: function(amount) {
      return reify(this, this.toSeq().reverse().skip(amount).reverse());
    },

    skipWhile: function(predicate, context) {
      return reify(this, skipWhileFactory(this, predicate, context, true));
    },

    skipUntil: function(predicate, context) {
      return this.skipWhile(not(predicate), context);
    },

    sortBy: function(mapper, comparator) {
      return reify(this, sortFactory(this, comparator, mapper));
    },

    take: function(amount) {
      return this.slice(0, Math.max(0, amount));
    },

    takeLast: function(amount) {
      return reify(this, this.toSeq().reverse().take(amount).reverse());
    },

    takeWhile: function(predicate, context) {
      return reify(this, takeWhileFactory(this, predicate, context));
    },

    takeUntil: function(predicate, context) {
      return this.takeWhile(not(predicate), context);
    },

    valueSeq: function() {
      return this.toIndexedSeq();
    },


    // ### Hashable Object

    hashCode: function() {
      return this.__hash || (this.__hash = hashIterable(this));
    }


    // ### Internal

    // abstract __iterate(fn, reverse)

    // abstract __iterator(type, reverse)
  });

  // var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';
  // var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';
  // var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';
  // var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';

  var IterablePrototype = Iterable.prototype;
  IterablePrototype[IS_ITERABLE_SENTINEL] = true;
  IterablePrototype[ITERATOR_SYMBOL] = IterablePrototype.values;
  IterablePrototype.__toJS = IterablePrototype.toArray;
  IterablePrototype.__toStringMapper = quoteString;
  IterablePrototype.inspect =
  IterablePrototype.toSource = function() { return this.toString(); };
  IterablePrototype.chain = IterablePrototype.flatMap;
  IterablePrototype.contains = IterablePrototype.includes;

  // Temporary warning about using length
  (function () {
    try {
      Object.defineProperty(IterablePrototype, 'length', {
        get: function () {
          if (!Iterable.noLengthWarning) {
            var stack;
            try {
              throw new Error();
            } catch (error) {
              stack = error.stack;
            }
            if (stack.indexOf('_wrapObject') === -1) {
              console && console.warn && console.warn(
                'iterable.length has been deprecated, '+
                'use iterable.size or iterable.count(). '+
                'This warning will become a silent error in a future version. ' +
                stack
              );
              return this.size;
            }
          }
        }
      });
    } catch (e) {}
  })();



  mixin(KeyedIterable, {

    // ### More sequential methods

    flip: function() {
      return reify(this, flipFactory(this));
    },

    findKey: function(predicate, context) {
      var entry = this.findEntry(predicate, context);
      return entry && entry[0];
    },

    findLastKey: function(predicate, context) {
      return this.toSeq().reverse().findKey(predicate, context);
    },

    keyOf: function(searchValue) {
      return this.findKey(function(value ) {return is(value, searchValue)});
    },

    lastKeyOf: function(searchValue) {
      return this.findLastKey(function(value ) {return is(value, searchValue)});
    },

    mapEntries: function(mapper, context) {var this$0 = this;
      var iterations = 0;
      return reify(this,
        this.toSeq().map(
          function(v, k)  {return mapper.call(context, [k, v], iterations++, this$0)}
        ).fromEntrySeq()
      );
    },

    mapKeys: function(mapper, context) {var this$0 = this;
      return reify(this,
        this.toSeq().flip().map(
          function(k, v)  {return mapper.call(context, k, v, this$0)}
        ).flip()
      );
    }

  });

  var KeyedIterablePrototype = KeyedIterable.prototype;
  KeyedIterablePrototype[IS_KEYED_SENTINEL] = true;
  KeyedIterablePrototype[ITERATOR_SYMBOL] = IterablePrototype.entries;
  KeyedIterablePrototype.__toJS = IterablePrototype.toObject;
  KeyedIterablePrototype.__toStringMapper = function(v, k)  {return JSON.stringify(k) + ': ' + quoteString(v)};



  mixin(IndexedIterable, {

    // ### Conversion to other types

    toKeyedSeq: function() {
      return new ToKeyedSequence(this, false);
    },


    // ### ES6 Collection methods (ES6 Array and Map)

    filter: function(predicate, context) {
      return reify(this, filterFactory(this, predicate, context, false));
    },

    findIndex: function(predicate, context) {
      var entry = this.findEntry(predicate, context);
      return entry ? entry[0] : -1;
    },

    indexOf: function(searchValue) {
      var key = this.toKeyedSeq().keyOf(searchValue);
      return key === undefined ? -1 : key;
    },

    lastIndexOf: function(searchValue) {
      var key = this.toKeyedSeq().reverse().keyOf(searchValue);
      return key === undefined ? -1 : key;

      // var index =
      // return this.toSeq().reverse().indexOf(searchValue);
    },

    reverse: function() {
      return reify(this, reverseFactory(this, false));
    },

    slice: function(begin, end) {
      return reify(this, sliceFactory(this, begin, end, false));
    },

    splice: function(index, removeNum /*, ...values*/) {
      var numArgs = arguments.length;
      removeNum = Math.max(removeNum | 0, 0);
      if (numArgs === 0 || (numArgs === 2 && !removeNum)) {
        return this;
      }
      // If index is negative, it should resolve relative to the size of the
      // collection. However size may be expensive to compute if not cached, so
      // only call count() if the number is in fact negative.
      index = resolveBegin(index, index < 0 ? this.count() : this.size);
      var spliced = this.slice(0, index);
      return reify(
        this,
        numArgs === 1 ?
          spliced :
          spliced.concat(arrCopy(arguments, 2), this.slice(index + removeNum))
      );
    },


    // ### More collection methods

    findLastIndex: function(predicate, context) {
      var key = this.toKeyedSeq().findLastKey(predicate, context);
      return key === undefined ? -1 : key;
    },

    first: function() {
      return this.get(0);
    },

    flatten: function(depth) {
      return reify(this, flattenFactory(this, depth, false));
    },

    get: function(index, notSetValue) {
      index = wrapIndex(this, index);
      return (index < 0 || (this.size === Infinity ||
          (this.size !== undefined && index > this.size))) ?
        notSetValue :
        this.find(function(_, key)  {return key === index}, undefined, notSetValue);
    },

    has: function(index) {
      index = wrapIndex(this, index);
      return index >= 0 && (this.size !== undefined ?
        this.size === Infinity || index < this.size :
        this.indexOf(index) !== -1
      );
    },

    interpose: function(separator) {
      return reify(this, interposeFactory(this, separator));
    },

    interleave: function(/*...iterables*/) {
      var iterables = [this].concat(arrCopy(arguments));
      var zipped = zipWithFactory(this.toSeq(), IndexedSeq.of, iterables);
      var interleaved = zipped.flatten(true);
      if (zipped.size) {
        interleaved.size = zipped.size * iterables.length;
      }
      return reify(this, interleaved);
    },

    last: function() {
      return this.get(-1);
    },

    skipWhile: function(predicate, context) {
      return reify(this, skipWhileFactory(this, predicate, context, false));
    },

    zip: function(/*, ...iterables */) {
      var iterables = [this].concat(arrCopy(arguments));
      return reify(this, zipWithFactory(this, defaultZipper, iterables));
    },

    zipWith: function(zipper/*, ...iterables */) {
      var iterables = arrCopy(arguments);
      iterables[0] = this;
      return reify(this, zipWithFactory(this, zipper, iterables));
    }

  });

  IndexedIterable.prototype[IS_INDEXED_SENTINEL] = true;
  IndexedIterable.prototype[IS_ORDERED_SENTINEL] = true;



  mixin(SetIterable, {

    // ### ES6 Collection methods (ES6 Array and Map)

    get: function(value, notSetValue) {
      return this.has(value) ? value : notSetValue;
    },

    includes: function(value) {
      return this.has(value);
    },


    // ### More sequential methods

    keySeq: function() {
      return this.valueSeq();
    }

  });

  SetIterable.prototype.has = IterablePrototype.includes;


  // Mixin subclasses

  mixin(KeyedSeq, KeyedIterable.prototype);
  mixin(IndexedSeq, IndexedIterable.prototype);
  mixin(SetSeq, SetIterable.prototype);

  mixin(KeyedCollection, KeyedIterable.prototype);
  mixin(IndexedCollection, IndexedIterable.prototype);
  mixin(SetCollection, SetIterable.prototype);


  // #pragma Helper functions

  function keyMapper(v, k) {
    return k;
  }

  function entryMapper(v, k) {
    return [k, v];
  }

  function not(predicate) {
    return function() {
      return !predicate.apply(this, arguments);
    }
  }

  function neg(predicate) {
    return function() {
      return -predicate.apply(this, arguments);
    }
  }

  function quoteString(value) {
    return typeof value === 'string' ? JSON.stringify(value) : value;
  }

  function defaultZipper() {
    return arrCopy(arguments);
  }

  function defaultNegComparator(a, b) {
    return a < b ? 1 : a > b ? -1 : 0;
  }

  function hashIterable(iterable) {
    if (iterable.size === Infinity) {
      return 0;
    }
    var ordered = isOrdered(iterable);
    var keyed = isKeyed(iterable);
    var h = ordered ? 1 : 0;
    var size = iterable.__iterate(
      keyed ?
        ordered ?
          function(v, k)  { h = 31 * h + hashMerge(hash(v), hash(k)) | 0; } :
          function(v, k)  { h = h + hashMerge(hash(v), hash(k)) | 0; } :
        ordered ?
          function(v ) { h = 31 * h + hash(v) | 0; } :
          function(v ) { h = h + hash(v) | 0; }
    );
    return murmurHashOfSize(size, h);
  }

  function murmurHashOfSize(size, h) {
    h = imul(h, 0xCC9E2D51);
    h = imul(h << 15 | h >>> -15, 0x1B873593);
    h = imul(h << 13 | h >>> -13, 5);
    h = (h + 0xE6546B64 | 0) ^ size;
    h = imul(h ^ h >>> 16, 0x85EBCA6B);
    h = imul(h ^ h >>> 13, 0xC2B2AE35);
    h = smi(h ^ h >>> 16);
    return h;
  }

  function hashMerge(a, b) {
    return a ^ b + 0x9E3779B9 + (a << 6) + (a >> 2) | 0; // int
  }

  var Immutable = {

    Iterable: Iterable,

    Seq: Seq,
    Collection: Collection,
    Map: Map,
    OrderedMap: OrderedMap,
    List: List,
    Stack: Stack,
    Set: Set,
    OrderedSet: OrderedSet,

    Record: Record,
    Range: Range,
    Repeat: Repeat,

    is: is,
    fromJS: fromJS

  };

  return Immutable;

}));
});

var parseHTML_1 = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = parseHTML;

var fallback = function fallback(html) {
  var doc = document.implementation.createHTMLDocument('');
  doc.documentElement.innerHTML = html;
  return doc;
};

function parseHTML(html) {
  var doc;

  if (typeof DOMParser !== 'undefined') {
    var parser = new DOMParser();
    doc = parser.parseFromString(html, 'text/html');

    if (doc === null || doc.body === null) {
      doc = fallback(html);
    }
  } else {
    doc = fallback(html);
  }

  return doc.body;
}
});

unwrapExports(parseHTML_1);

var convertFromHTML_1 = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;





var _parseHTML = interopRequireDefault(parseHTML_1);

var _rangeSort = interopRequireDefault(rangeSort);

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the /src directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */
var NBSP = '&nbsp;';
var SPACE = ' '; // Arbitrary max indent

var MAX_DEPTH = 4; // used for replacing characters in HTML

/* eslint-disable no-control-regex */

var REGEX_CR = new RegExp('\r', 'g');
var REGEX_LF = new RegExp('\n', 'g');
var REGEX_NBSP = new RegExp(NBSP, 'g');
var REGEX_BLOCK_DELIMITER = new RegExp('\r', 'g');
/* eslint-enable no-control-regex */
// Block tag flow is different because LIs do not have
// a deterministic style ;_;

var blockTags = ['p', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'li', 'blockquote', 'pre'];
var inlineTags = {
  b: 'BOLD',
  code: 'CODE',
  del: 'STRIKETHROUGH',
  em: 'ITALIC',
  i: 'ITALIC',
  s: 'STRIKETHROUGH',
  strike: 'STRIKETHROUGH',
  strong: 'BOLD',
  u: 'UNDERLINE'
};

var handleMiddleware = function handleMiddleware(maybeMiddleware, base) {
  if (maybeMiddleware && maybeMiddleware.__isMiddleware === true) {
    return maybeMiddleware(base);
  }

  return maybeMiddleware;
};

var defaultHTMLToBlock = function defaultHTMLToBlock(nodeName, node, lastList) {
  return undefined;
};

var defaultHTMLToStyle = function defaultHTMLToStyle(nodeName, node, currentStyle) {
  return currentStyle;
};

var defaultHTMLToEntity = function defaultHTMLToEntity(nodeName, node) {
  return undefined;
};

var defaultTextToEntity = function defaultTextToEntity(text) {
  return [];
};

var nullthrows = function nullthrows(x) {
  if (x != null) {
    return x;
  }

  throw new Error('Got unexpected null or undefined');
};

var sanitizeDraftText = function sanitizeDraftText(input) {
  return input.replace(REGEX_BLOCK_DELIMITER, '');
};

function getEmptyChunk() {
  return {
    text: '',
    inlines: [],
    entities: [],
    blocks: []
  };
}

function getWhitespaceChunk(inEntity) {
  var entities = new Array(1);

  if (inEntity) {
    entities[0] = inEntity;
  }

  return {
    text: SPACE,
    inlines: [(0, immutable$2.OrderedSet)()],
    entities: entities,
    blocks: []
  };
}

function getSoftNewlineChunk(block, depth) {
  var flat = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  var data = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : (0, immutable$2.Map)();

  if (flat === true) {
    return {
      text: '\r',
      inlines: [(0, immutable$2.OrderedSet)()],
      entities: new Array(1),
      blocks: [{
        type: block,
        data: data,
        depth: Math.max(0, Math.min(MAX_DEPTH, depth))
      }],
      isNewline: true
    };
  }

  return {
    text: '\n',
    inlines: [(0, immutable$2.OrderedSet)()],
    entities: new Array(1),
    blocks: []
  };
}

function getBlockDividerChunk(block, depth) {
  var data = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : (0, immutable$2.Map)();
  return {
    text: '\r',
    inlines: [(0, immutable$2.OrderedSet)()],
    entities: new Array(1),
    blocks: [{
      type: block,
      data: data,
      depth: Math.max(0, Math.min(MAX_DEPTH, depth))
    }]
  };
}

function getBlockTypeForTag(tag, lastList) {
  switch (tag) {
    case 'h1':
      return 'header-one';

    case 'h2':
      return 'header-two';

    case 'h3':
      return 'header-three';

    case 'h4':
      return 'header-four';

    case 'h5':
      return 'header-five';

    case 'h6':
      return 'header-six';

    case 'li':
      if (lastList === 'ol') {
        return 'ordered-list-item';
      }

      return 'unordered-list-item';

    case 'blockquote':
      return 'blockquote';

    case 'pre':
      return 'code-block';

    case 'div':
    case 'p':
      return 'unstyled';

    default:
      return null;
  }
}

function baseCheckBlockType(nodeName, node, lastList) {
  return getBlockTypeForTag(nodeName, lastList);
}

function processInlineTag(tag, node, currentStyle) {
  var styleToCheck = inlineTags[tag];

  if (styleToCheck) {
    currentStyle = currentStyle.add(styleToCheck).toOrderedSet();
  } else if (node instanceof HTMLElement) {
    var htmlElement = node;
    currentStyle = currentStyle.withMutations(function (style) {
      if (htmlElement.style.fontWeight === 'bold') {
        style.add('BOLD');
      }

      if (htmlElement.style.fontStyle === 'italic') {
        style.add('ITALIC');
      }

      if (htmlElement.style.textDecoration === 'underline') {
        style.add('UNDERLINE');
      }

      if (htmlElement.style.textDecoration === 'line-through') {
        style.add('STRIKETHROUGH');
      }
    }).toOrderedSet();
  }

  return currentStyle;
}

function baseProcessInlineTag(tag, node) {
  var inlineStyles = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : (0, immutable$2.OrderedSet)();
  return processInlineTag(tag, node, inlineStyles);
}

function joinChunks(A, B) {
  var flat = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  // Sometimes two blocks will touch in the DOM and we need to strip the
  // extra delimiter to preserve niceness.
  var firstInB = B.text.slice(0, 1);
  var lastInA = A.text.slice(-1);
  var adjacentDividers = lastInA === '\r' && firstInB === '\r';
  var isJoiningBlocks = A.text !== '\r' && B.text !== '\r'; // when joining two full blocks like this we want to pop one divider

  var addingNewlineToEmptyBlock = A.text === '\r' && !A.isNewline && B.isNewline; // when joining a newline to an empty block we want to remove the newline

  if (adjacentDividers && (isJoiningBlocks || addingNewlineToEmptyBlock)) {
    A.text = A.text.slice(0, -1);
    A.inlines.pop();
    A.entities.pop();
    A.blocks.pop();
  } // Kill whitespace after blocks if flat mode is on


  if (A.text.slice(-1) === '\r' && flat === true) {
    if (B.text === SPACE || B.text === '\n') {
      return A;
    } else if (firstInB === SPACE || firstInB === '\n') {
      B.text = B.text.slice(1);
      B.inlines.shift();
      B.entities.shift();
    }
  }

  var isNewline = A.text.length === 0 && B.isNewline;
  return {
    text: A.text + B.text,
    inlines: A.inlines.concat(B.inlines),
    entities: A.entities.concat(B.entities),
    blocks: A.blocks.concat(B.blocks),
    isNewline: isNewline
  };
}
/*
 * Check to see if we have anything like <p> <blockquote> <h1>... to create
 * block tags from. If we do, we can use those and ignore <div> tags. If we
 * don't, we can treat <div> tags as meaningful (unstyled) blocks.
 */


function containsSemanticBlockMarkup(html) {
  return blockTags.some(function (tag) {
    return html.indexOf("<".concat(tag)) !== -1;
  });
}

function genFragment(node, inlineStyle, lastList, inBlock, fragmentBlockTags, depth, processCustomInlineStyles, checkEntityNode, checkEntityText, checkBlockType, createEntity, getEntity, mergeEntityData, replaceEntityData, options, inEntity) {
  var nodeName = node.nodeName.toLowerCase();
  var newBlock = false;
  var nextBlockType = 'unstyled'; // Base Case

  if (nodeName === '#text') {
    var text = node.textContent;

    if (text.trim() === '' && inBlock === null) {
      return getEmptyChunk();
    }

    if (text.trim() === '' && inBlock !== 'code-block') {
      return getWhitespaceChunk(inEntity);
    }

    if (inBlock !== 'code-block') {
      // Can't use empty string because MSWord
      text = text.replace(REGEX_LF, SPACE);
    }

    var entities = Array(text.length).fill(inEntity);
    var offsetChange = 0;
    var textEntities = checkEntityText(text, createEntity, getEntity, mergeEntityData, replaceEntityData).sort(_rangeSort["default"]);
    textEntities.forEach(function (_ref) {
      var entity = _ref.entity,
          offset = _ref.offset,
          length = _ref.length,
          result = _ref.result;
      var adjustedOffset = offset + offsetChange;

      if (result === null || result === undefined) {
        result = text.substr(adjustedOffset, length);
      }

      var textArray = text.split('');
      textArray.splice.bind(textArray, adjustedOffset, length).apply(textArray, result.split(''));
      text = textArray.join('');
      entities.splice.bind(entities, adjustedOffset, length).apply(entities, Array(result.length).fill(entity));
      offsetChange += result.length - length;
    });
    return {
      text: text,
      inlines: Array(text.length).fill(inlineStyle),
      entities: entities,
      blocks: []
    };
  } // BR tags


  if (nodeName === 'br') {
    var _blockType = inBlock;

    if (_blockType === null) {
      //  BR tag is at top level, treat it as an unstyled block
      return getSoftNewlineChunk('unstyled', depth, true);
    }

    return getSoftNewlineChunk(_blockType || 'unstyled', depth, options.flat);
  }

  var chunk = getEmptyChunk();
  var newChunk = null; // Inline tags

  inlineStyle = processInlineTag(nodeName, node, inlineStyle);
  inlineStyle = processCustomInlineStyles(nodeName, node, inlineStyle); // Handle lists

  if (nodeName === 'ul' || nodeName === 'ol') {
    if (lastList) {
      depth += 1;
    }

    lastList = nodeName;
    inBlock = null;
  } // Block Tags


  var blockInfo = checkBlockType(nodeName, node, lastList, inBlock);
  var blockType;
  var blockDataMap;

  if (blockInfo === false) {
    return getEmptyChunk();
  }

  blockInfo = blockInfo || {};

  if (typeof blockInfo === 'string') {
    blockType = blockInfo;
    blockDataMap = (0, immutable$2.Map)();
  } else {
    blockType = typeof blockInfo === 'string' ? blockInfo : blockInfo.type;
    blockDataMap = blockInfo.data ? (0, immutable$2.Map)(blockInfo.data) : (0, immutable$2.Map)();
  }

  if (!inBlock && (fragmentBlockTags.indexOf(nodeName) !== -1 || blockType)) {
    chunk = getBlockDividerChunk(blockType || getBlockTypeForTag(nodeName, lastList), depth, blockDataMap);
    inBlock = blockType || getBlockTypeForTag(nodeName, lastList);
    newBlock = true;
  } else if (lastList && (inBlock === 'ordered-list-item' || inBlock === 'unordered-list-item') && nodeName === 'li') {
    var listItemBlockType = getBlockTypeForTag(nodeName, lastList);
    chunk = getBlockDividerChunk(listItemBlockType, depth);
    inBlock = listItemBlockType;
    newBlock = true;
    nextBlockType = lastList === 'ul' ? 'unordered-list-item' : 'ordered-list-item';
  } else if (inBlock && inBlock !== 'atomic' && blockType === 'atomic') {
    inBlock = blockType;
    newBlock = true;
    chunk = getSoftNewlineChunk(blockType, depth, true, // atomic blocks within non-atomic blocks must always be split out
    blockDataMap);
  } // Recurse through children


  var child = node.firstChild; // hack to allow conversion of atomic blocks from HTML (e.g. <figure><img
  // src="..." /></figure>). since metadata must be stored on an entity text
  // must exist for the entity to apply to. the way chunks are joined strips
  // whitespace at the end so it cannot be a space character.

  if (child == null && inEntity && (blockType === 'atomic' || inBlock === 'atomic')) {
    child = document.createTextNode('a');
  }

  if (child != null) {
    nodeName = child.nodeName.toLowerCase();
  }

  var entityId = null;

  while (child) {
    entityId = checkEntityNode(nodeName, child, createEntity, getEntity, mergeEntityData, replaceEntityData);
    newChunk = genFragment(child, inlineStyle, lastList, inBlock, fragmentBlockTags, depth, processCustomInlineStyles, checkEntityNode, checkEntityText, checkBlockType, createEntity, getEntity, mergeEntityData, replaceEntityData, options, entityId || inEntity);
    chunk = joinChunks(chunk, newChunk, options.flat);
    var sibling = child.nextSibling; // Put in a newline to break up blocks inside blocks

    if (sibling && fragmentBlockTags.indexOf(nodeName) >= 0 && inBlock) {
      var newBlockInfo = checkBlockType(nodeName, child, lastList, inBlock);
      var newBlockType = void 0;
      var newBlockData = void 0;

      if (newBlockInfo !== false) {
        newBlockInfo = newBlockInfo || {};

        if (typeof newBlockInfo === 'string') {
          newBlockType = newBlockInfo;
          newBlockData = (0, immutable$2.Map)();
        } else {
          newBlockType = newBlockInfo.type || getBlockTypeForTag(nodeName, lastList);
          newBlockData = newBlockInfo.data ? (0, immutable$2.Map)(newBlockInfo.data) : (0, immutable$2.Map)();
        }

        chunk = joinChunks(chunk, getSoftNewlineChunk(newBlockType, depth, options.flat, newBlockData), options.flat);
      }
    }

    if (sibling) {
      nodeName = sibling.nodeName.toLowerCase();
    }

    child = sibling;
  }

  if (newBlock) {
    chunk = joinChunks(chunk, getBlockDividerChunk(nextBlockType, depth, (0, immutable$2.Map)()), options.flat);
  }

  return chunk;
}

function getChunkForHTML(html, processCustomInlineStyles, checkEntityNode, checkEntityText, checkBlockType, createEntity, getEntity, mergeEntityData, replaceEntityData, options, DOMBuilder) {
  html = html.trim().replace(REGEX_CR, '').replace(REGEX_NBSP, SPACE);
  var safeBody = DOMBuilder(html);

  if (!safeBody) {
    return null;
  } // Sometimes we aren't dealing with content that contains nice semantic
  // tags. In this case, use divs to separate everything out into paragraphs
  // and hope for the best.


  var workingBlocks = containsSemanticBlockMarkup(html) ? blockTags.concat(['div']) : ['div']; // Start with -1 block depth to offset the fact that we are passing in a fake
  // UL block to sta rt with.

  var chunk = genFragment(safeBody, (0, immutable$2.OrderedSet)(), 'ul', null, workingBlocks, -1, processCustomInlineStyles, checkEntityNode, checkEntityText, checkBlockType, createEntity, getEntity, mergeEntityData, replaceEntityData, options); // join with previous block to prevent weirdness on paste

  if (chunk.text.indexOf('\r') === 0) {
    chunk = {
      text: chunk.text.slice(1),
      inlines: chunk.inlines.slice(1),
      entities: chunk.entities.slice(1),
      blocks: chunk.blocks
    };
  } // Kill block delimiter at the end


  if (chunk.text.slice(-1) === '\r') {
    chunk.text = chunk.text.slice(0, -1);
    chunk.inlines = chunk.inlines.slice(0, -1);
    chunk.entities = chunk.entities.slice(0, -1);
    chunk.blocks.pop();
  } // If we saw no block tags, put an unstyled one in


  if (chunk.blocks.length === 0) {
    chunk.blocks.push({
      type: 'unstyled',
      data: (0, immutable$2.Map)(),
      depth: 0
    });
  } // Sometimes we start with text that isn't in a block, which is then
  // followed by blocks. Need to fix up the blocks to add in
  // an unstyled block for this content


  if (chunk.text.split('\r').length === chunk.blocks.length + 1) {
    chunk.blocks.unshift({
      type: 'unstyled',
      data: (0, immutable$2.Map)(),
      depth: 0
    });
  }

  return chunk;
}

function convertFromHTMLtoContentBlocks(html, processCustomInlineStyles, checkEntityNode, checkEntityText, checkBlockType, createEntity, getEntity, mergeEntityData, replaceEntityData, options, DOMBuilder, generateKey) {
  // Be ABSOLUTELY SURE that the dom builder you pass hare won't execute
  // arbitrary code in whatever environment you're running this in. For an
  // example of how we try to do this in-browser, see getSafeBodyFromHTML.
  var chunk = getChunkForHTML(html, processCustomInlineStyles, checkEntityNode, checkEntityText, checkBlockType, createEntity, getEntity, mergeEntityData, replaceEntityData, options, DOMBuilder);

  if (chunk == null) {
    return [];
  }

  var start = 0;
  return chunk.text.split('\r').map(function (textBlock, blockIndex) {
    // Make absolutely certain that our text is acceptable.
    textBlock = sanitizeDraftText(textBlock);
    var end = start + textBlock.length;
    var inlines = nullthrows(chunk).inlines.slice(start, end);
    var entities = nullthrows(chunk).entities.slice(start, end);
    var characterList = (0, immutable$2.List)(inlines.map(function (style, entityIndex) {
      var data = {
        style: style,
        entity: null
      };

      if (entities[entityIndex]) {
        data.entity = entities[entityIndex];
      }

      return Draft.CharacterMetadata.create(data);
    }));
    start = end + 1;
    return new Draft.ContentBlock({
      key: generateKey(),
      type: nullthrows(chunk).blocks[blockIndex].type,
      data: nullthrows(chunk).blocks[blockIndex].data,
      depth: nullthrows(chunk).blocks[blockIndex].depth,
      text: textBlock,
      characterList: characterList
    });
  });
}

var convertFromHTML = function convertFromHTML(_ref2) {
  var _ref2$htmlToStyle = _ref2.htmlToStyle,
      htmlToStyle = _ref2$htmlToStyle === void 0 ? defaultHTMLToStyle : _ref2$htmlToStyle,
      _ref2$htmlToEntity = _ref2.htmlToEntity,
      htmlToEntity = _ref2$htmlToEntity === void 0 ? defaultHTMLToEntity : _ref2$htmlToEntity,
      _ref2$textToEntity = _ref2.textToEntity,
      textToEntity = _ref2$textToEntity === void 0 ? defaultTextToEntity : _ref2$textToEntity,
      _ref2$htmlToBlock = _ref2.htmlToBlock,
      htmlToBlock = _ref2$htmlToBlock === void 0 ? defaultHTMLToBlock : _ref2$htmlToBlock;
  return function (html) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
      flat: false
    };
    var DOMBuilder = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : _parseHTML["default"];
    var generateKey = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : Draft.genKey;

    var contentState = Draft.ContentState.createFromText('');

    var createEntityWithContentState = function createEntityWithContentState() {
      if (contentState.createEntity) {
        var _contentState;

        contentState = (_contentState = contentState).createEntity.apply(_contentState, arguments);
        return contentState.getLastCreatedEntityKey();
      }

      return Draft.Entity.create.apply(Draft.Entity, arguments);
    };

    var getEntityWithContentState = function getEntityWithContentState() {
      if (contentState.getEntity) {
        var _contentState2;

        return (_contentState2 = contentState).getEntity.apply(_contentState2, arguments);
      }

      return Draft.Entity.get.apply(Draft.Entity, arguments);
    };

    var mergeEntityDataWithContentState = function mergeEntityDataWithContentState() {
      if (contentState.mergeEntityData) {
        var _contentState3;

        contentState = (_contentState3 = contentState).mergeEntityData.apply(_contentState3, arguments);
        return;
      }

      Draft.Entity.mergeData.apply(Draft.Entity, arguments);
    };

    var replaceEntityDataWithContentState = function replaceEntityDataWithContentState() {
      if (contentState.replaceEntityData) {
        var _contentState4;

        contentState = (_contentState4 = contentState).replaceEntityData.apply(_contentState4, arguments);
        return;
      }

      Draft.Entity.replaceData.apply(Draft.Entity, arguments);
    };

    var contentBlocks = convertFromHTMLtoContentBlocks(html, handleMiddleware(htmlToStyle, baseProcessInlineTag), handleMiddleware(htmlToEntity, defaultHTMLToEntity), handleMiddleware(textToEntity, defaultTextToEntity), handleMiddleware(htmlToBlock, baseCheckBlockType), createEntityWithContentState, getEntityWithContentState, mergeEntityDataWithContentState, replaceEntityDataWithContentState, options, DOMBuilder, generateKey);

    var blockMap = Draft.BlockMapBuilder.createFromArray(contentBlocks);

    var firstBlockKey = contentBlocks[0].getKey();
    return contentState.merge({
      blockMap: blockMap,
      selectionBefore: Draft.SelectionState.createEmpty(firstBlockKey),
      selectionAfter: Draft.SelectionState.createEmpty(firstBlockKey)
    });
  };
};

var _default = function _default() {
  if (arguments.length >= 1 && typeof (arguments.length <= 0 ? undefined : arguments[0]) === 'string') {
    return convertFromHTML({}).apply(void 0, arguments);
  }

  return convertFromHTML.apply(void 0, arguments);
};

exports["default"] = _default;
});

unwrapExports(convertFromHTML_1);

var lib = createCommonjsModule(function (module, exports) {



Object.defineProperty(exports, "__esModule", {
  value: true
});
Object.defineProperty(exports, "convertToHTML", {
  enumerable: true,
  get: function get() {
    return _convertToHTML["default"];
  }
});
Object.defineProperty(exports, "convertFromHTML", {
  enumerable: true,
  get: function get() {
    return _convertFromHTML["default"];
  }
});
Object.defineProperty(exports, "parseHTML", {
  enumerable: true,
  get: function get() {
    return _parseHTML["default"];
  }
});

var _convertToHTML = interopRequireDefault(convertToHTML_1);

var _convertFromHTML = interopRequireDefault(convertFromHTML_1);

var _parseHTML = interopRequireDefault(parseHTML_1);
});

unwrapExports(lib);

var configs = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getFromHTMLConfig = exports.getToHTMLConfig = exports.blocks = exports.getHexColor = exports.defaultFontFamilies = exports.namedColors = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };



var _react2 = _interopRequireDefault(React);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

var namedColors = exports.namedColors = {
  "aliceblue": "#f0f8ff",
  "antiquewhite": "#faebd7",
  "aqua": "#00ffff",
  "aquamarine": "#7fffd4",
  "azure": "#f0ffff",
  "beige": "#f5f5dc",
  "bisque": "#ffe4c4",
  "black": "#000000",
  "blanchedalmond": "#ffebcd",
  "blue": "#0000ff",
  "blueviolet": "#8a2be2",
  "brown": "#a52a2a",
  "burlywood": "#deb887",
  "cadetblue": "#5f9ea0",
  "chartreuse": "#7fff00",
  "chocolate": "#d2691e",
  "coral": "#ff7f50",
  "cornflowerblue": "#6495ed",
  "cornsilk": "#fff8dc",
  "crimson": "#dc143c",
  "cyan": "#00ffff",
  "darkblue": "#00008b",
  "darkcyan": "#008b8b",
  "darkgoldenrod": "#b8860b",
  "darkgray": "#a9a9a9",
  "darkgreen": "#006400",
  "darkkhaki": "#bdb76b",
  "darkmagenta": "#8b008b",
  "darkolivegreen": "#556b2f",
  "darkorange": "#ff8c00",
  "darkorchid": "#9932cc",
  "darkred": "#8b0000",
  "darksalmon": "#e9967a",
  "darkseagreen": "#8fbc8f",
  "darkslateblue": "#483d8b",
  "darkslategray": "#2f4f4f",
  "darkturquoise": "#00ced1",
  "darkviolet": "#9400d3",
  "deeppink": "#ff1493",
  "deepskyblue": "#00bfff",
  "dimgray": "#696969",
  "dodgerblue": "#1e90ff",
  "firebrick": "#b22222",
  "floralwhite": "#fffaf0",
  "forestgreen": "#228b22",
  "fuchsia": "#ff00ff",
  "gainsboro": "#dcdcdc",
  "ghostwhite": "#f8f8ff",
  "gold": "#ffd700",
  "goldenrod": "#daa520",
  "gray": "#808080",
  "green": "#008000",
  "greenyellow": "#adff2f",
  "honeydew": "#f0fff0",
  "hotpink": "#ff69b4",
  "indianred ": "#cd5c5c",
  "indigo": "#4b0082",
  "ivory": "#fffff0",
  "khaki": "#f0e68c",
  "lavender": "#e6e6fa",
  "lavenderblush": "#fff0f5",
  "lawngreen": "#7cfc00",
  "lemonchiffon": "#fffacd",
  "lightblue": "#add8e6",
  "lightcoral": "#f08080",
  "lightcyan": "#e0ffff",
  "lightgoldenrodyellow": "#fafad2",
  "lightgrey": "#d3d3d3",
  "lightgreen": "#90ee90",
  "lightpink": "#ffb6c1",
  "lightsalmon": "#ffa07a",
  "lightseagreen": "#20b2aa",
  "lightskyblue": "#87cefa",
  "lightslategray": "#778899",
  "lightsteelblue": "#b0c4de",
  "lightyellow": "#ffffe0",
  "lime": "#00ff00",
  "limegreen": "#32cd32",
  "linen": "#faf0e6",
  "magenta": "#ff00ff",
  "maroon": "#800000",
  "mediumaquamarine": "#66cdaa",
  "mediumblue": "#0000cd",
  "mediumorchid": "#ba55d3",
  "mediumpurple": "#9370d8",
  "mediumseagreen": "#3cb371",
  "mediumslateblue": "#7b68ee",
  "mediumspringgreen": "#00fa9a",
  "mediumturquoise": "#48d1cc",
  "mediumvioletred": "#c71585",
  "midnightblue": "#191970",
  "mintcream": "#f5fffa",
  "mistyrose": "#ffe4e1",
  "moccasin": "#ffe4b5",
  "navajowhite": "#ffdead",
  "navy": "#000080",
  "oldlace": "#fdf5e6",
  "olive": "#808000",
  "olivedrab": "#6b8e23",
  "orange": "#ffa500",
  "orangered": "#ff4500",
  "orchid": "#da70d6",
  "palegoldenrod": "#eee8aa",
  "palegreen": "#98fb98",
  "paleturquoise": "#afeeee",
  "palevioletred": "#d87093",
  "papayawhip": "#ffefd5",
  "peachpuff": "#ffdab9",
  "peru": "#cd853f",
  "pink": "#ffc0cb",
  "plum": "#dda0dd",
  "powderblue": "#b0e0e6",
  "purple": "#800080",
  "rebeccapurple": "#663399",
  "red": "#ff0000",
  "rosybrown": "#bc8f8f",
  "royalblue": "#4169e1",
  "saddlebrown": "#8b4513",
  "salmon": "#fa8072",
  "sandybrown": "#f4a460",
  "seagreen": "#2e8b57",
  "seashell": "#fff5ee",
  "sienna": "#a0522d",
  "silver": "#c0c0c0",
  "skyblue": "#87ceeb",
  "slateblue": "#6a5acd",
  "slategray": "#708090",
  "snow": "#fffafa",
  "springgreen": "#00ff7f",
  "steelblue": "#4682b4",
  "tan": "#d2b48c",
  "teal": "#008080",
  "thistle": "#d8bfd8",
  "tomato": "#ff6347",
  "turquoise": "#40e0d0",
  "violet": "#ee82ee",
  "wheat": "#f5deb3",
  "white": "#ffffff",
  "whitesmoke": "#f5f5f5",
  "yellow": "#ffff00",
  "yellowgreen": "#9acd32"
};

var getStyleValue = function getStyleValue(style) {
  return style.split('-')[1];
};
var defaultUnitExportFn = function defaultUnitExportFn(unit) {
  return unit + 'px';
};
var defaultUnitImportFn = function defaultUnitImportFn(unit) {
  return unit.replace('px', '');
};

var ignoredNodeAttributes = ['style'];
var ignoredEntityNodeAttributes = ['style', 'href', 'target', 'alt', 'title', 'id', 'controls', 'autoplay', 'loop', 'poster'];

var spreadNodeAttributes = function spreadNodeAttributes(attributesObject) {
  return Object.keys(attributesObject).reduce(function (attributeString, attributeName) {
    return attributeString + " " + attributeName + "=\"" + attributesObject[attributeName] + "\"";
  }, '').replace(/^\s$/, '');
};

var defaultFontFamilies = exports.defaultFontFamilies = [{
  name: 'Araial',
  family: 'Arial, Helvetica, sans-serif'
}, {
  name: 'Georgia',
  family: 'Georgia, serif'
}, {
  name: 'Impact',
  family: 'Impact, serif'
}, {
  name: 'Monospace',
  family: '"Courier New", Courier, monospace'
}, {
  name: 'Tahoma',
  family: "tahoma, arial, 'Hiragino Sans GB', 宋体, sans-serif"
}];

var getHexColor = exports.getHexColor = function getHexColor(color) {

  color = color.replace('color:', '').replace(';', '').replace(' ', '');

  if (/^#([0-9a-fA-F]{6}|[0-9a-fA-F]{3})$/.test(color)) {
    return color;
  } else if (namedColors[color]) {
    return namedColors[color];
  } else if (color.indexOf('rgb') === 0) {

    var rgbArray = color.split(',');
    var convertedColor = rgbArray.length < 3 ? null : '#' + [rgbArray[0], rgbArray[1], rgbArray[2]].map(function (x) {
      var hex = parseInt(x.replace(/\D/g, ''), 10).toString(16);
      return hex.length === 1 ? '0' + hex : hex;
    }).join('');

    return (/^#([0-9a-fA-F]{6}|[0-9a-fA-F]{3})$/.test(convertedColor) ? convertedColor : null
    );
  } else {
    return null;
  }
};

var blocks = exports.blocks = {
  'header-one': 'h1',
  'header-two': 'h2',
  'header-three': 'h3',
  'header-four': 'h4',
  'header-five': 'h5',
  'header-six': 'h6',
  'unstyled': 'p',
  'blockquote': 'blockquote'
};

var blockTypes = Object.keys(blocks);
var blockNames = blockTypes.map(function (key) {
  return blocks[key];
});

var convertAtomicBlock = function convertAtomicBlock(block, contentState, blockNodeAttributes) {

  if (!block || !block.key) {
    return _react2.default.createElement("p", null);
  }

  var contentBlock = contentState.getBlockForKey(block.key);

  var className = blockNodeAttributes.class,
      nodeAttrAsProps = _objectWithoutProperties(blockNodeAttributes, ["class"]);

  nodeAttrAsProps.className = className;

  if (!contentBlock) {
    return _react2.default.createElement("p", null);
  }

  var entityKey = contentBlock.getEntityAt(0);

  if (!entityKey) {
    return _react2.default.createElement("p", null);
  }

  var entity = contentState.getEntity(entityKey);
  var mediaType = entity.getType().toLowerCase();

  var _block$data = block.data,
      float = _block$data.float,
      alignment = _block$data.alignment;

  var _entity$getData = entity.getData(),
      url = _entity$getData.url,
      link = _entity$getData.link,
      link_target = _entity$getData.link_target,
      width = _entity$getData.width,
      height = _entity$getData.height,
      meta = _entity$getData.meta;

  if (mediaType === 'image') {

    var imageWrapStyle = {};
    var styledClassName = '';

    if (float) {
      imageWrapStyle.float = float;
      styledClassName += ' float-' + float;
    } else if (alignment) {
      imageWrapStyle.textAlign = alignment;
      styledClassName += ' align-' + alignment;
    }

    if (link) {
      return _react2.default.createElement(
        "div",
        { className: "media-wrap image-wrap" + styledClassName, style: imageWrapStyle },
        _react2.default.createElement(
          "a",
          { style: { display: 'inline-block' }, href: link, target: link_target },
          _react2.default.createElement("img", _extends({}, nodeAttrAsProps, meta, { src: url, width: width, height: height, style: { width: width, height: height } }))
        )
      );
    } else {
      return _react2.default.createElement(
        "div",
        { className: "media-wrap image-wrap" + styledClassName, style: imageWrapStyle },
        _react2.default.createElement("img", _extends({}, nodeAttrAsProps, meta, { src: url, width: width, height: height, style: { width: width, height: height } }))
      );
    }
  } else if (mediaType === 'audio') {
    return _react2.default.createElement(
      "div",
      { className: "media-wrap audio-wrap" },
      _react2.default.createElement("audio", _extends({ controls: true }, nodeAttrAsProps, meta, { src: url }))
    );
  } else if (mediaType === 'video') {
    return _react2.default.createElement(
      "div",
      { className: "media-wrap video-wrap" },
      _react2.default.createElement("video", _extends({ controls: true }, nodeAttrAsProps, meta, { src: url, width: width, height: height }))
    );
  } else if (mediaType === 'embed') {
    return _react2.default.createElement(
      "div",
      { className: "media-wrap embed-wrap" },
      _react2.default.createElement("div", { dangerouslySetInnerHTML: { __html: url } })
    );
  } else if (mediaType === 'hr') {
    return _react2.default.createElement("hr", null);
  } else {
    return _react2.default.createElement("p", null);
  }
};

var entityToHTML = function entityToHTML(options) {
  return function (entity, originalText) {
    var entityExportFn = options.entityExportFn;

    var entityType = entity.type.toLowerCase();

    if (entityExportFn) {
      var customOutput = entityExportFn(entity, originalText);
      if (customOutput) {
        return customOutput;
      }
    }

    if (entityType === 'link') {
      var _ref = entity.data.nodeAttributes || {},
          className = _ref.class,
          nodeAttrAsProps = _objectWithoutProperties(_ref, ["class"]);

      nodeAttrAsProps.className = className;
      return _react2.default.createElement("a", _extends({ href: entity.data.href, target: entity.data.target }, nodeAttrAsProps));
    }
  };
};

var styleToHTML = function styleToHTML(options) {
  return function (style) {

    var unitExportFn = options.unitExportFn || defaultUnitExportFn;

    if (options.styleExportFn) {
      var customOutput = options.styleExportFn(style, options);
      if (customOutput) {
        return customOutput;
      }
    }

    style = style.toLowerCase();

    if (style === 'strikethrough') {
      return _react2.default.createElement("span", { style: { textDecoration: 'line-through' } });
    } else if (style === 'superscript') {
      return _react2.default.createElement("sup", null);
    } else if (style === 'subscript') {
      return _react2.default.createElement("sub", null);
    } else if (style.indexOf('color-') === 0) {
      return _react2.default.createElement("span", { style: { color: '#' + getStyleValue(style) } });
    } else if (style.indexOf('bgcolor-') === 0) {
      return _react2.default.createElement("span", { style: { backgroundColor: '#' + getStyleValue(style) } });
    } else if (style.indexOf('fontsize-') === 0) {
      return _react2.default.createElement("span", { style: { fontSize: unitExportFn(getStyleValue(style), 'font-size', 'html') } });
    } else if (style.indexOf('lineheight-') === 0) {
      return _react2.default.createElement("span", { style: { lineHeight: unitExportFn(getStyleValue(style), 'line-height', 'html') } });
    } else if (style.indexOf('letterspacing-') === 0) {
      return _react2.default.createElement("span", { style: { letterSpacing: unitExportFn(getStyleValue(style), 'letter-spacing', 'html') } });
    } else if (style.indexOf('fontfamily-') === 0) {
      var fontFamily = options.fontFamilies.find(function (item) {
        return item.name.toLowerCase() === getStyleValue(style);
      });
      if (!fontFamily) return;
      return _react2.default.createElement("span", { style: { fontFamily: fontFamily.family } });
    }
  };
};

var blockToHTML = function blockToHTML(options) {
  return function (block) {
    var blockExportFn = options.blockExportFn,
        contentState = options.contentState;


    if (blockExportFn) {
      var customOutput = blockExportFn(contentState, block);
      if (customOutput) {
        return customOutput;
      }
    }

    var blockStyle = '';

    var blockType = block.type.toLowerCase();
    var _block$data2 = block.data,
        textAlign = _block$data2.textAlign,
        textIndent = _block$data2.textIndent,
        _block$data2$nodeAttr = _block$data2.nodeAttributes,
        nodeAttributes = _block$data2$nodeAttr === undefined ? {} : _block$data2$nodeAttr;

    var attributeString = spreadNodeAttributes(nodeAttributes);

    if (textAlign || textIndent) {

      blockStyle = ' style="';

      if (textAlign) {
        blockStyle += "text-align:" + textAlign + ";";
      }

      if (textIndent && !isNaN(textIndent) && textIndent > 0) {
        blockStyle += "text-indent:" + textIndent * 2 + "em;";
      }

      blockStyle += '"';
    }

    if (blockType === 'atomic') {
      return convertAtomicBlock(block, contentState, nodeAttributes);
    } else if (blockType === 'code-block') {

      var previousBlock = contentState.getBlockBefore(block.key);
      var nextBlock = contentState.getBlockAfter(block.key);
      var previousBlockType = previousBlock && previousBlock.getType();
      var nextBlockType = nextBlock && nextBlock.getType();

      var start = '';
      var end = '';

      if (previousBlockType !== 'code-block') {
        start = "<pre" + attributeString + "><code>";
      } else {
        start = '';
      }

      if (nextBlockType !== 'code-block') {
        end = '</code></pre>';
      } else {
        end = '<br/>';
      }

      return { start: start, end: end };
    } else if (blocks[blockType]) {
      return {
        start: "<" + blocks[blockType] + blockStyle + attributeString + ">",
        end: "</" + blocks[blockType] + ">"
      };
    } else if (blockType === 'unordered-list-item') {
      return {
        start: "<li" + blockStyle + attributeString + ">",
        end: '</li>',
        nest: _react2.default.createElement("ul", null)
      };
    } else if (blockType === 'ordered-list-item') {
      return {
        start: "<li" + blockStyle + attributeString + ">",
        end: '</li>',
        nest: _react2.default.createElement("ol", null)
      };
    }
  };
};

var htmlToStyle = function htmlToStyle(options, source) {
  return function (nodeName, node, currentStyle) {

    if (!node || !node.style) {
      return currentStyle;
    }

    var unitImportFn = options.unitImportFn || defaultUnitImportFn;
    var newStyle = currentStyle;

    [].forEach.call(node.style, function (style) {

      if (nodeName === 'span' && style === 'color') {
        var color = getHexColor(node.style.color);
        newStyle = color ? newStyle.add('COLOR-' + color.replace('#', '').toUpperCase()) : newStyle;
      } else if (nodeName === 'span' && style === 'background-color') {
        var _color = getHexColor(node.style.backgroundColor);
        newStyle = _color ? newStyle.add('BGCOLOR-' + _color.replace('#', '').toUpperCase()) : newStyle;
      } else if (nodeName === 'span' && style === 'font-size') {
        newStyle = newStyle.add('FONTSIZE-' + unitImportFn(node.style.fontSize, 'font-size', source));
      } else if (nodeName === 'span' && style === 'line-height' && !isNaN(parseFloat(node.style.lineHeight, 10))) {
        newStyle = newStyle.add('LINEHEIGHT-' + unitImportFn(node.style.lineHeight, 'line-height', source));
      } else if (nodeName === 'span' && style === 'letter-spacing' && !isNaN(parseFloat(node.style.letterSpacing, 10))) {
        newStyle = newStyle.add('LETTERSPACING-' + unitImportFn(node.style.letterSpacing, 'letter-spacing', source));
      } else if (nodeName === 'span' && style === 'text-decoration') {
        if (node.style.textDecoration === 'line-through') {
          newStyle = newStyle.add('STRIKETHROUGH');
        } else if (node.style.textDecoration === 'underline') {
          newStyle = newStyle.add('UNDERLINE');
        }
      } else if (nodeName === 'span' && style === 'font-family') {
        var fontFamily = options.fontFamilies.find(function (item) {
          return item.family.toLowerCase() === node.style.fontFamily.toLowerCase();
        });
        if (!fontFamily) return;
        newStyle = newStyle.add('FONTFAMILY-' + fontFamily.name.toUpperCase());
      }
    });

    if (nodeName === 'sup') {
      newStyle = newStyle.add('SUPERSCRIPT');
    } else if (nodeName === 'sub') {
      newStyle = newStyle.add('SUBSCRIPT');
    }

    options.styleImportFn && (newStyle = options.styleImportFn(nodeName, node, newStyle, source) || newStyle);
    return newStyle;
  };
};

var htmlToEntity = function htmlToEntity(options, source) {
  return function (nodeName, node, createEntity) {

    if (options && options.entityImportFn) {
      var customInput = options.entityImportFn(nodeName, node, createEntity, source);
      if (customInput) {
        return customInput;
      }
    }

    nodeName = nodeName.toLowerCase();

    var alt = node.alt,
        title = node.title,
        id = node.id,
        controls = node.controls,
        autoplay = node.autoplay,
        loop = node.loop,
        poster = node.poster;

    var meta = {};
    var nodeAttributes = {};

    id && (meta.id = id);
    alt && (meta.alt = alt);
    title && (meta.title = title);
    controls && (meta.controls = controls);
    autoplay && (meta.autoPlay = autoplay);
    loop && (meta.loop = loop);
    poster && (meta.poster = poster);

    node.attributes && Object.keys(node.attributes).forEach(function (key) {
      var attr = node.attributes[key];
      ignoredEntityNodeAttributes.indexOf(attr.name) === -1 && (nodeAttributes[attr.name] = attr.value);
    });

    if (nodeName === 'a' && !node.querySelectorAll('img').length) {
      var href = node.getAttribute('href');
      var _target = node.getAttribute('target');
      return createEntity('LINK', 'MUTABLE', { href: href, target: _target, nodeAttributes: nodeAttributes });
    } else if (nodeName === 'audio') {
      return createEntity('AUDIO', 'IMMUTABLE', { url: node.getAttribute('src'), meta: meta, nodeAttributes: nodeAttributes });
    } else if (nodeName === 'video') {
      return createEntity('VIDEO', 'IMMUTABLE', { url: node.getAttribute('src'), meta: meta, nodeAttributes: nodeAttributes });
    } else if (nodeName === 'img') {

      var parentNode = node.parentNode;
      var entityData = { meta: meta };
      var _node$style = node.style,
          width = _node$style.width,
          height = _node$style.height;


      entityData.url = node.getAttribute('src');
      width && (entityData.width = width);
      height && (entityData.height = height);

      if (parentNode.nodeName.toLowerCase() === 'a') {
        entityData.link = parentNode.getAttribute('href');
        entityData.link_target = parentNode.getAttribute('target');
      }

      return createEntity('IMAGE', 'IMMUTABLE', entityData);
    } else if (nodeName === 'hr') {
      return createEntity('HR', 'IMMUTABLE', {});
    } else if (node.parentNode && node.parentNode.classList.contains('embed-wrap')) {

      var embedContent = node.innerHTML || node.outerHTML;

      if (embedContent) {
        return createEntity('EMBED', 'IMMUTABLE', {
          url: embedContent
        });
      }
    }
  };
};

var htmlToBlock = function htmlToBlock(options, source) {
  return function (nodeName, node) {

    if (options && options.blockImportFn) {
      var customInput = options.blockImportFn(nodeName, node, source);
      if (customInput) {
        return customInput;
      }
    }

    var nodeAttributes = {};
    var nodeStyle = node.style || {};

    node.attributes && Object.keys(node.attributes).forEach(function (key) {
      var attr = node.attributes[key];
      ignoredNodeAttributes.indexOf(attr.name) === -1 && (nodeAttributes[attr.name] = attr.value);
    });

    if (node.classList && node.classList.contains('media-wrap')) {

      return {
        type: 'atomic',
        data: {
          nodeAttributes: nodeAttributes,
          float: nodeStyle.float,
          alignment: nodeStyle.textAlign
        }
      };
    } else if (nodeName === 'img') {

      return {
        type: 'atomic',
        data: {
          nodeAttributes: nodeAttributes,
          float: nodeStyle.float,
          alignment: nodeStyle.textAlign
        }
      };
    } else if (nodeName === 'hr') {

      return {
        type: 'atomic',
        data: { nodeAttributes: nodeAttributes }
      };
    } else if (nodeName === 'pre') {

      node.innerHTML = node.innerHTML.replace(/<code(.*?)>/g, '').replace(/<\/code>/g, '');

      return {
        type: 'code-block',
        data: { nodeAttributes: nodeAttributes }
      };
    } else if (blockNames.indexOf(nodeName) !== -1) {

      var blockData = { nodeAttributes: nodeAttributes };

      if (nodeStyle.textAlign) {
        blockData.textAlign = nodeStyle.textAlign;
      }

      if (nodeStyle.textIndent) {
        blockData.textIndent = /^\d+em$/.test(nodeStyle.textIndent) ? Math.ceil(parseInt(nodeStyle.textIndent, 10) / 2) : 1;
      }

      return {
        type: blockTypes[blockNames.indexOf(nodeName)],
        data: blockData
      };
    }
  };
};

var getToHTMLConfig = exports.getToHTMLConfig = function getToHTMLConfig(options) {

  return {
    styleToHTML: styleToHTML(options),
    entityToHTML: entityToHTML(options),
    blockToHTML: blockToHTML(options)
  };
};

var getFromHTMLConfig = exports.getFromHTMLConfig = function getFromHTMLConfig(options) {
  var source = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'unknow';


  return {
    htmlToStyle: htmlToStyle(options, source),
    htmlToEntity: htmlToEntity(options, source),
    htmlToBlock: htmlToBlock(options, source)
  };
};

});

unwrapExports(configs);
var configs_1 = configs.getFromHTMLConfig;
var configs_2 = configs.getToHTMLConfig;
var configs_3 = configs.blocks;
var configs_4 = configs.getHexColor;
var configs_5 = configs.defaultFontFamilies;
var configs_6 = configs.namedColors;

var dist = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.convertRawToEditorState = exports.convertEditorStateToRaw = exports.convertHTMLToEditorState = exports.convertEditorStateToHTML = exports.convertHTMLToRaw = exports.convertRawToHTML = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };







var defaultConvertOptions = {
  fontFamilies: configs.defaultFontFamilies
};

var convertRawToHTML = exports.convertRawToHTML = function convertRawToHTML(rawContent, options) {

  options = _extends({}, defaultConvertOptions, options);

  try {
    var contentState = (0, Draft.convertFromRaw)(rawContent);
    options.contentState = contentState;
    return (0, lib.convertToHTML)((0, configs.getToHTMLConfig)(options))(contentState);
  } catch (error) {
    console.warn(error);
    return '';
  }
};

var convertHTMLToRaw = exports.convertHTMLToRaw = function convertHTMLToRaw(HTMLString, options, source) {

  options = _extends({}, defaultConvertOptions, options);

  try {
    var contentState = (0, lib.convertFromHTML)((0, configs.getFromHTMLConfig)(options, source))(HTMLString);
    return (0, Draft.convertToRaw)(contentState);
  } catch (error) {
    console.warn(error);
    return {};
  }
};

var convertEditorStateToHTML = exports.convertEditorStateToHTML = function convertEditorStateToHTML(editorState, options) {

  options = _extends({}, defaultConvertOptions, options);

  try {
    var contentState = editorState.getCurrentContent();
    options.contentState = contentState;
    return (0, lib.convertToHTML)((0, configs.getToHTMLConfig)(options))(contentState);
  } catch (error) {
    console.warn(error);
    return '';
  }
};

var convertHTMLToEditorState = exports.convertHTMLToEditorState = function convertHTMLToEditorState(HTMLString, editorDecorators, options, source) {

  options = _extends({}, defaultConvertOptions, options);

  try {
    return Draft.EditorState.createWithContent((0, lib.convertFromHTML)((0, configs.getFromHTMLConfig)(options, source))(HTMLString), editorDecorators);
  } catch (error) {
    console.warn(error);
    return Draft.EditorState.createEmpty(editorDecorators);
  }
};

var convertEditorStateToRaw = exports.convertEditorStateToRaw = function convertEditorStateToRaw(editorState) {
  return (0, Draft.convertToRaw)(editorState.getCurrentContent());
};

var convertRawToEditorState = exports.convertRawToEditorState = function convertRawToEditorState(rawContent, editorDecorators) {

  try {
    return Draft.EditorState.createWithContent((0, Draft.convertFromRaw)(rawContent), editorDecorators);
  } catch (error) {
    console.warn(error);
    return Draft.EditorState.createEmpty(editorDecorators);
  }
};

});

unwrapExports(dist);
var dist_1 = dist.convertRawToEditorState;
var dist_2 = dist.convertEditorStateToRaw;
var dist_3 = dist.convertHTMLToEditorState;
var dist_4 = dist.convertEditorStateToHTML;
var dist_5 = dist.convertHTMLToRaw;
var dist_6 = dist.convertRawToHTML;

var content = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.redo = exports.undo = exports.handleKeyCommand = exports.clear = exports.setMediaPosition = exports.removeMedia = exports.setMediaData = exports.insertMedias = exports.insertHorizontalLine = exports.insertAtomicBlock = exports.insertHTML = exports.insertText = exports.toggleSelectionLetterSpacing = exports.toggleSelectionFontFamily = exports.toggleSelectionLineHeight = exports.toggleSelectionFontSize = exports.toggleSelectionBackgroundColor = exports.toggleSelectionColor = exports.decreaseSelectionIndent = exports.increaseSelectionIndent = exports.toggleSelectionIndent = exports.toggleSelectionAlignment = exports.removeSelectionInlineStyles = exports.toggleSelectionInlineStyle = exports.selectionHasInlineStyle = exports.getSelectionInlineStyle = exports.toggleSelectionLink = exports.toggleSelectionEntity = exports.getSelectionEntityData = exports.getSelectionEntityType = exports.toggleSelectionBlockType = exports.getSelectionText = exports.getSelectionBlockType = exports.getSelectionBlockData = exports.setSelectionBlockData = exports.getSelectedBlocks = exports.updateEachCharacterOfSelection = exports.getSelectionBlock = exports.removeBlock = exports.selectNextBlock = exports.selectBlock = exports.selectionContainsStrictBlock = exports.selectionContainsBlockType = exports.isSelectionCollapsed = exports.createEditorState = exports.createEmptyEditorState = exports.isEditorState = exports.registerStrictBlockType = undefined;









var _immutable2 = _interopRequireDefault(immutable$1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var strictBlockTypes = ['atomic'];

var registerStrictBlockType = exports.registerStrictBlockType = function registerStrictBlockType(blockType) {
  strictBlockTypes.indexOf(blockType) === -1 && strictBlockTypes.push(blockType);
};

var isEditorState = exports.isEditorState = function isEditorState(editorState) {
  return editorState instanceof Draft.EditorState;
};

var createEmptyEditorState = exports.createEmptyEditorState = function createEmptyEditorState(editorDecorators) {
  return Draft.EditorState.createEmpty(editorDecorators);
};

var createEditorState = exports.createEditorState = function createEditorState(contentState, editorDecorators) {
  return Draft.EditorState.createWithContent(contentState, editorDecorators);
};

var isSelectionCollapsed = exports.isSelectionCollapsed = function isSelectionCollapsed(editorState) {
  return editorState.getSelection().isCollapsed();
};

var selectionContainsBlockType = exports.selectionContainsBlockType = function selectionContainsBlockType(editorState, blockType) {
  return getSelectedBlocks(editorState).find(function (block) {
    return block.getType() === blockType;
  });
};

var selectionContainsStrictBlock = exports.selectionContainsStrictBlock = function selectionContainsStrictBlock(editorState) {
  return getSelectedBlocks(editorState).find(function (block) {
    return ~strictBlockTypes.indexOf(block.getType());
  });
};

var selectBlock = exports.selectBlock = function selectBlock(editorState, block) {

  var blockKey = block.getKey();

  return Draft.EditorState.forceSelection(editorState, new Draft.SelectionState({
    anchorKey: blockKey,
    anchorOffset: 0,
    focusKey: blockKey,
    focusOffset: block.getLength()
  }));
};

var selectNextBlock = exports.selectNextBlock = function selectNextBlock(editorState, block) {
  var nextBlock = editorState.getCurrentContent().getBlockAfter(block.getKey());
  return nextBlock ? selectBlock(editorState, nextBlock) : editorState;
};

var removeBlock = exports.removeBlock = function removeBlock(editorState, block) {
  var lastSelection = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;


  var nextContentState = void 0,
      nextEditorState = void 0;
  var blockKey = block.getKey();

  nextContentState = Draft.Modifier.removeRange(editorState.getCurrentContent(), new Draft.SelectionState({
    anchorKey: blockKey,
    anchorOffset: 0,
    focusKey: blockKey,
    focusOffset: block.getLength()
  }), 'backward');

  nextContentState = Draft.Modifier.setBlockType(nextContentState, nextContentState.getSelectionAfter(), 'unstyled');
  nextEditorState = Draft.EditorState.push(editorState, nextContentState, 'remove-range');
  return Draft.EditorState.forceSelection(nextEditorState, lastSelection || nextContentState.getSelectionAfter());
};

var getSelectionBlock = exports.getSelectionBlock = function getSelectionBlock(editorState) {
  return editorState.getCurrentContent().getBlockForKey(editorState.getSelection().getAnchorKey());
};

var updateEachCharacterOfSelection = exports.updateEachCharacterOfSelection = function updateEachCharacterOfSelection(editorState, callback) {

  var selectionState = editorState.getSelection();
  var contentState = editorState.getCurrentContent();
  var contentBlocks = contentState.getBlockMap();
  var selectedBlocks = getSelectedBlocks(editorState);

  if (selectedBlocks.length === 0) {
    return editorState;
  }

  var startKey = selectionState.getStartKey();
  var startOffset = selectionState.getStartOffset();
  var endKey = selectionState.getEndKey();
  var endOffset = selectionState.getEndOffset();

  var nextContentBlocks = contentBlocks.map(function (block) {

    if (selectedBlocks.indexOf(block) === -1) {
      return block;
    }

    var blockKey = block.getKey();
    var charactersList = block.getCharacterList();
    var nextCharactersList = null;

    if (blockKey === startKey && blockKey === endKey) {
      nextCharactersList = charactersList.map(function (character, index) {
        if (index >= startOffset && index < endOffset) {
          return callback(character);
        }
        return character;
      });
    } else if (blockKey === startKey) {
      nextCharactersList = charactersList.map(function (character, index) {
        if (index >= startOffset) {
          return callback(character);
        }
        return character;
      });
    } else if (blockKey === endKey) {
      nextCharactersList = charactersList.map(function (character, index) {
        if (index < endOffset) {
          return callback(character);
        }
        return character;
      });
    } else {
      nextCharactersList = charactersList.map(function (character) {
        return callback(character);
      });
    }

    return block.merge({
      'characterList': nextCharactersList
    });
  });

  return Draft.EditorState.push(editorState, contentState.merge({
    blockMap: nextContentBlocks,
    selectionBefore: selectionState,
    selectionAfter: selectionState
  }), 'update-selection-character-list');
};

var getSelectedBlocks = exports.getSelectedBlocks = function getSelectedBlocks(editorState) {

  var selectionState = editorState.getSelection();
  var contentState = editorState.getCurrentContent();

  var startKey = selectionState.getStartKey();
  var endKey = selectionState.getEndKey();
  var isSameBlock = startKey === endKey;
  var startingBlock = contentState.getBlockForKey(startKey);
  var selectedBlocks = [startingBlock];

  if (!isSameBlock) {
    var blockKey = startKey;

    while (blockKey !== endKey) {
      var nextBlock = contentState.getBlockAfter(blockKey);
      selectedBlocks.push(nextBlock);
      blockKey = nextBlock.getKey();
    }
  }

  return selectedBlocks;
};

var setSelectionBlockData = exports.setSelectionBlockData = function setSelectionBlockData(editorState, blockData, override) {

  var newBlockData = override ? blockData : Object.assign({}, getSelectionBlockData(editorState).toJS(), blockData);

  Object.keys(newBlockData).forEach(function (key) {
    if (newBlockData.hasOwnProperty(key) && newBlockData[key] === undefined) {
      delete newBlockData[key];
    }
  });

  return (0, draftjsUtils.setBlockData)(editorState, newBlockData);
};

var getSelectionBlockData = exports.getSelectionBlockData = function getSelectionBlockData(editorState, name) {
  var blockData = getSelectionBlock(editorState).getData();
  return name ? blockData.get(name) : blockData;
};

var getSelectionBlockType = exports.getSelectionBlockType = function getSelectionBlockType(editorState) {
  return getSelectionBlock(editorState).getType();
};

var getSelectionText = exports.getSelectionText = function getSelectionText(editorState) {

  var selectionState = editorState.getSelection();
  var contentState = editorState.getCurrentContent();

  if (selectionState.isCollapsed() || getSelectionBlockType(editorState) === 'atomic') {
    return '';
  }

  var anchorKey = selectionState.getAnchorKey();
  var currentContentBlock = contentState.getBlockForKey(anchorKey);
  var start = selectionState.getStartOffset();
  var end = selectionState.getEndOffset();

  return currentContentBlock.getText().slice(start, end);
};

var toggleSelectionBlockType = exports.toggleSelectionBlockType = function toggleSelectionBlockType(editorState, blockType) {

  if (selectionContainsStrictBlock(editorState)) {
    return editorState;
  }

  return Draft.RichUtils.toggleBlockType(editorState, blockType);
};

var getSelectionEntityType = exports.getSelectionEntityType = function getSelectionEntityType(editorState) {

  var entityKey = (0, draftjsUtils.getSelectionEntity)(editorState);

  if (entityKey) {
    var entity = editorState.getCurrentContent().getEntity(entityKey);
    return entity ? entity.get('type') : null;
  }

  return null;
};

var getSelectionEntityData = exports.getSelectionEntityData = function getSelectionEntityData(editorState, type) {

  var entityKey = (0, draftjsUtils.getSelectionEntity)(editorState);

  if (entityKey) {
    var entity = editorState.getCurrentContent().getEntity(entityKey);
    if (entity && entity.get('type') === type) {
      return entity.getData();
    } else {
      return {};
    }
  } else {
    return {};
  }
};

var toggleSelectionEntity = exports.toggleSelectionEntity = function toggleSelectionEntity(editorState, entity) {

  var contentState = editorState.getCurrentContent();
  var selectionState = editorState.getSelection();

  if (selectionState.isCollapsed() || getSelectionBlockType(editorState) === 'atomic') {
    return editorState;
  }

  if (!entity || !entity.type || getSelectionEntityType(editorState) === entity.type) {
    return Draft.EditorState.push(editorState, Draft.Modifier.applyEntity(contentState, selectionState, null), 'apply-entity');
  }

  try {

    var nextContentState = contentState.createEntity(entity.type, entity.mutability, entity.data);
    var entityKey = nextContentState.getLastCreatedEntityKey();

    var nextEditorState = Draft.EditorState.set(editorState, {
      currentContent: nextContentState
    });

    return Draft.EditorState.push(nextEditorState, Draft.Modifier.applyEntity(nextContentState, selectionState, entityKey), 'apply-entity');
  } catch (error) {
    console.warn(error);
    return editorState;
  }
};

var toggleSelectionLink = exports.toggleSelectionLink = function toggleSelectionLink(editorState, href, target) {

  var contentState = editorState.getCurrentContent();
  var selectionState = editorState.getSelection();

  var entityData = { href: href, target: target };

  if (selectionState.isCollapsed() || getSelectionBlockType(editorState) === 'atomic') {
    return editorState;
  }

  if (href === false) {
    return Draft.RichUtils.toggleLink(editorState, selectionState, null);
  }

  if (href === null) {
    delete entityData.href;
  }

  try {

    var nextContentState = contentState.createEntity('LINK', 'MUTABLE', entityData);
    var entityKey = nextContentState.getLastCreatedEntityKey();

    var nextEditorState = Draft.EditorState.set(editorState, {
      currentContent: nextContentState
    });

    nextEditorState = Draft.RichUtils.toggleLink(nextEditorState, selectionState, entityKey);
    nextEditorState = Draft.EditorState.forceSelection(nextEditorState, selectionState.merge({
      anchorOffset: selectionState.getEndOffset(),
      focusOffset: selectionState.getEndOffset()
    }));

    nextEditorState = Draft.EditorState.push(nextEditorState, Draft.Modifier.insertText(nextEditorState.getCurrentContent(), nextEditorState.getSelection(), ''), 'insert-text');

    return nextEditorState;
  } catch (error) {
    console.warn(error);
    return editorState;
  }
};

var getSelectionInlineStyle = exports.getSelectionInlineStyle = function getSelectionInlineStyle(editorState) {
  return editorState.getCurrentInlineStyle();
};

var selectionHasInlineStyle = exports.selectionHasInlineStyle = function selectionHasInlineStyle(editorState, style) {
  return getSelectionInlineStyle(editorState).has(style.toUpperCase());
};

var toggleSelectionInlineStyle = exports.toggleSelectionInlineStyle = function toggleSelectionInlineStyle(editorState, style) {
  var prefix = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : '';


  var nextEditorState = editorState;
  style = prefix + style.toUpperCase();

  if (prefix) {

    nextEditorState = updateEachCharacterOfSelection(nextEditorState, function (characterMetadata) {

      return characterMetadata.toJS().style.reduce(function (characterMetadata, characterStyle) {
        if (characterStyle.indexOf(prefix) === 0 && style !== characterStyle) {
          return Draft.CharacterMetadata.removeStyle(characterMetadata, characterStyle);
        } else {
          return characterMetadata;
        }
      }, characterMetadata);
    });
  }

  return Draft.RichUtils.toggleInlineStyle(nextEditorState, style);
};

var removeSelectionInlineStyles = exports.removeSelectionInlineStyles = function removeSelectionInlineStyles(editorState) {

  return updateEachCharacterOfSelection(editorState, function (characterMetadata) {
    return characterMetadata.merge({
      style: _immutable2.default.OrderedSet([])
    });
  });
};

var toggleSelectionAlignment = exports.toggleSelectionAlignment = function toggleSelectionAlignment(editorState, alignment) {
  return setSelectionBlockData(editorState, {
    textAlign: getSelectionBlockData(editorState, 'textAlign') !== alignment ? alignment : undefined
  });
};

var toggleSelectionIndent = exports.toggleSelectionIndent = function toggleSelectionIndent(editorState, textIndent) {
  var maxIndent = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 6;

  return textIndent < 0 || textIndent > maxIndent || isNaN(textIndent) ? editorState : setSelectionBlockData(editorState, {
    textIndent: textIndent || undefined
  });
};

var increaseSelectionIndent = exports.increaseSelectionIndent = function increaseSelectionIndent(editorState) {
  var maxIndent = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 6;

  var currentIndent = getSelectionBlockData(editorState, 'textIndent') || 0;
  return toggleSelectionIndent(editorState, currentIndent + 1, maxIndent);
};

var decreaseSelectionIndent = exports.decreaseSelectionIndent = function decreaseSelectionIndent(editorState) {
  var currentIndent = getSelectionBlockData(editorState, 'textIndent') || 0;
  return toggleSelectionIndent(editorState, currentIndent - 1);
};

var toggleSelectionColor = exports.toggleSelectionColor = function toggleSelectionColor(editorState, color) {
  return toggleSelectionInlineStyle(editorState, color.replace('#', ''), 'COLOR-');
};

var toggleSelectionBackgroundColor = exports.toggleSelectionBackgroundColor = function toggleSelectionBackgroundColor(editorState, color) {
  return toggleSelectionInlineStyle(editorState, color.replace('#', ''), 'BGCOLOR-');
};

var toggleSelectionFontSize = exports.toggleSelectionFontSize = function toggleSelectionFontSize(editorState, fontSize) {
  return toggleSelectionInlineStyle(editorState, fontSize, 'FONTSIZE-');
};

var toggleSelectionLineHeight = exports.toggleSelectionLineHeight = function toggleSelectionLineHeight(editorState, lineHeight) {
  return toggleSelectionInlineStyle(editorState, lineHeight, 'LINEHEIGHT-');
};

var toggleSelectionFontFamily = exports.toggleSelectionFontFamily = function toggleSelectionFontFamily(editorState, fontFamily) {
  return toggleSelectionInlineStyle(editorState, fontFamily, 'FONTFAMILY-');
};

var toggleSelectionLetterSpacing = exports.toggleSelectionLetterSpacing = function toggleSelectionLetterSpacing(editorState, letterSpacing) {
  return toggleSelectionInlineStyle(editorState, letterSpacing, 'LETTERSPACING-');
};

var insertText = exports.insertText = function insertText(editorState, text, inlineStyle, entity) {

  var selectionState = editorState.getSelection();
  var currentSelectedBlockType = getSelectionBlockType(editorState);

  if (currentSelectedBlockType === 'atomic') {
    return editorState;
  }

  var entityKey = void 0;
  var contentState = editorState.getCurrentContent();

  if (entity && entity.type) {
    contentState = contentState.createEntity(entity.type, entity.mutability || 'MUTABLE', entity.data || entityData);
    entityKey = contentState.getLastCreatedEntityKey();
  }

  if (!selectionState.isCollapsed()) {
    return Draft.EditorState.push(editorState, Draft.Modifier.replaceText(contentState, selectionState, text, inlineStyle, entityKey), 'replace-text');
  } else {
    return Draft.EditorState.push(editorState, Draft.Modifier.insertText(contentState, selectionState, text, inlineStyle, entityKey), 'insert-text');
  }
};

var insertHTML = exports.insertHTML = function insertHTML(editorState, htmlString, source) {

  if (!htmlString) {
    return editorState;
  }

  var selectionState = editorState.getSelection();
  var contentState = editorState.getCurrentContent();
  var options = editorState.convertOptions || {};

  try {
    var _convertFromRaw = (0, Draft.convertFromRaw)((0, dist.convertHTMLToRaw)(htmlString, options, source)),
        blockMap = _convertFromRaw.blockMap;

    return Draft.EditorState.push(editorState, Draft.Modifier.replaceWithFragment(contentState, selectionState, blockMap), 'insert-fragment');
  } catch (error) {
    console.warn(error);
    return editorState;
  }
};

var insertAtomicBlock = exports.insertAtomicBlock = function insertAtomicBlock(editorState, type) {
  var immutable = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
  var data = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};


  if (selectionContainsStrictBlock(editorState)) {
    return insertAtomicBlock(selectNextBlock(editorState, getSelectionBlock(editorState)), type, immutable, data);
  }

  var selectionState = editorState.getSelection();
  var contentState = editorState.getCurrentContent();

  if (!selectionState.isCollapsed() || getSelectionBlockType(editorState) === 'atomic') {
    return editorState;
  }

  var contentStateWithEntity = contentState.createEntity(type, immutable ? 'IMMUTABLE' : 'MUTABLE', data);
  var entityKey = contentStateWithEntity.getLastCreatedEntityKey();
  var newEditorState = Draft.AtomicBlockUtils.insertAtomicBlock(editorState, entityKey, ' ');

  return newEditorState;
};

var insertHorizontalLine = exports.insertHorizontalLine = function insertHorizontalLine(editorState) {
  return insertAtomicBlock(editorState, 'HR');
};

var insertMedias = exports.insertMedias = function insertMedias(editorState) {
  var medias = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];


  if (!medias.length) {
    return editorState;
  }

  return medias.reduce(function (editorState, media) {
    var url = media.url,
        link = media.link,
        link_target = media.link_target,
        name = media.name,
        type = media.type,
        width = media.width,
        height = media.height,
        meta = media.meta;

    return insertAtomicBlock(editorState, type, true, { url: url, link: link, link_target: link_target, name: name, type: type, width: width, height: height, meta: meta });
  }, editorState);
};

var setMediaData = exports.setMediaData = function setMediaData(editorState, entityKey, data) {
  return Draft.EditorState.push(editorState, editorState.getCurrentContent().mergeEntityData(entityKey, data), 'change-block-data');
};

var removeMedia = exports.removeMedia = function removeMedia(editorState, mediaBlock) {
  return removeBlock(editorState, mediaBlock);
};

var setMediaPosition = exports.setMediaPosition = function setMediaPosition(editorState, mediaBlock, position) {

  var newPosition = {};
  var float = position.float,
      alignment = position.alignment;


  if (typeof float !== 'undefined') {
    newPosition.float = mediaBlock.getData().get('float') === float ? null : float;
  }

  if (typeof alignment !== 'undefined') {
    newPosition.alignment = mediaBlock.getData().get('alignment') === alignment ? null : alignment;
  }

  return setSelectionBlockData(selectBlock(editorState, mediaBlock), newPosition);
};

var clear = exports.clear = function clear(editorState) {

  var contentState = editorState.getCurrentContent();

  var firstBlock = contentState.getFirstBlock();
  var lastBlock = contentState.getLastBlock();

  var allSelected = new Draft.SelectionState({
    anchorKey: firstBlock.getKey(),
    anchorOffset: 0,
    focusKey: lastBlock.getKey(),
    focusOffset: lastBlock.getLength(),
    hasFocus: true
  });

  return Draft.RichUtils.toggleBlockType(Draft.EditorState.push(editorState, Draft.Modifier.removeRange(contentState, allSelected, 'backward'), 'remove-range'), 'unstyled');
};

var handleKeyCommand = exports.handleKeyCommand = function handleKeyCommand(editorState, command) {
  return Draft.RichUtils.handleKeyCommand(editorState, command);
};

var undo = exports.undo = function undo(editorState) {
  return Draft.EditorState.undo(editorState);
};

var redo = exports.redo = function redo(editorState) {
  return Draft.EditorState.redo(editorState);
};
});

unwrapExports(content);
var content_1 = content.redo;
var content_2 = content.undo;
var content_3 = content.handleKeyCommand;
var content_4 = content.clear;
var content_5 = content.setMediaPosition;
var content_6 = content.removeMedia;
var content_7 = content.setMediaData;
var content_8 = content.insertMedias;
var content_9 = content.insertHorizontalLine;
var content_10 = content.insertAtomicBlock;
var content_11 = content.insertHTML;
var content_12 = content.insertText;
var content_13 = content.toggleSelectionLetterSpacing;
var content_14 = content.toggleSelectionFontFamily;
var content_15 = content.toggleSelectionLineHeight;
var content_16 = content.toggleSelectionFontSize;
var content_17 = content.toggleSelectionBackgroundColor;
var content_18 = content.toggleSelectionColor;
var content_19 = content.decreaseSelectionIndent;
var content_20 = content.increaseSelectionIndent;
var content_21 = content.toggleSelectionIndent;
var content_22 = content.toggleSelectionAlignment;
var content_23 = content.removeSelectionInlineStyles;
var content_24 = content.toggleSelectionInlineStyle;
var content_25 = content.selectionHasInlineStyle;
var content_26 = content.getSelectionInlineStyle;
var content_27 = content.toggleSelectionLink;
var content_28 = content.toggleSelectionEntity;
var content_29 = content.getSelectionEntityData;
var content_30 = content.getSelectionEntityType;
var content_31 = content.toggleSelectionBlockType;
var content_32 = content.getSelectionText;
var content_33 = content.getSelectionBlockType;
var content_34 = content.getSelectionBlockData;
var content_35 = content.setSelectionBlockData;
var content_36 = content.getSelectedBlocks;
var content_37 = content.updateEachCharacterOfSelection;
var content_38 = content.getSelectionBlock;
var content_39 = content.removeBlock;
var content_40 = content.selectNextBlock;
var content_41 = content.selectBlock;
var content_42 = content.selectionContainsStrictBlock;
var content_43 = content.selectionContainsBlockType;
var content_44 = content.isSelectionCollapsed;
var content_45 = content.createEditorState;
var content_46 = content.createEmptyEditorState;
var content_47 = content.isEditorState;
var content_48 = content.registerStrictBlockType;

var base = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
var braftUniqueIndex = 0;

var UniqueIndex = exports.UniqueIndex = function UniqueIndex() {
  return braftUniqueIndex += 1;
};
});

unwrapExports(base);
var base_1 = base.UniqueIndex;

var color = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
var _namedColors = {
  "aliceblue": "#f0f8ff",
  "antiquewhite": "#faebd7",
  "aqua": "#00ffff",
  "aquamarine": "#7fffd4",
  "azure": "#f0ffff",
  "beige": "#f5f5dc",
  "bisque": "#ffe4c4",
  "black": "#000000",
  "blanchedalmond": "#ffebcd",
  "blue": "#0000ff",
  "blueviolet": "#8a2be2",
  "brown": "#a52a2a",
  "burlywood": "#deb887",
  "cadetblue": "#5f9ea0",
  "chartreuse": "#7fff00",
  "chocolate": "#d2691e",
  "coral": "#ff7f50",
  "cornflowerblue": "#6495ed",
  "cornsilk": "#fff8dc",
  "crimson": "#dc143c",
  "cyan": "#00ffff",
  "darkblue": "#00008b",
  "darkcyan": "#008b8b",
  "darkgoldenrod": "#b8860b",
  "darkgray": "#a9a9a9",
  "darkgreen": "#006400",
  "darkkhaki": "#bdb76b",
  "darkmagenta": "#8b008b",
  "darkolivegreen": "#556b2f",
  "darkorange": "#ff8c00",
  "darkorchid": "#9932cc",
  "darkred": "#8b0000",
  "darksalmon": "#e9967a",
  "darkseagreen": "#8fbc8f",
  "darkslateblue": "#483d8b",
  "darkslategray": "#2f4f4f",
  "darkturquoise": "#00ced1",
  "darkviolet": "#9400d3",
  "deeppink": "#ff1493",
  "deepskyblue": "#00bfff",
  "dimgray": "#696969",
  "dodgerblue": "#1e90ff",
  "firebrick": "#b22222",
  "floralwhite": "#fffaf0",
  "forestgreen": "#228b22",
  "fuchsia": "#ff00ff",
  "gainsboro": "#dcdcdc",
  "ghostwhite": "#f8f8ff",
  "gold": "#ffd700",
  "goldenrod": "#daa520",
  "gray": "#808080",
  "green": "#008000",
  "greenyellow": "#adff2f",
  "honeydew": "#f0fff0",
  "hotpink": "#ff69b4",
  "indianred ": "#cd5c5c",
  "indigo": "#4b0082",
  "ivory": "#fffff0",
  "khaki": "#f0e68c",
  "lavender": "#e6e6fa",
  "lavenderblush": "#fff0f5",
  "lawngreen": "#7cfc00",
  "lemonchiffon": "#fffacd",
  "lightblue": "#add8e6",
  "lightcoral": "#f08080",
  "lightcyan": "#e0ffff",
  "lightgoldenrodyellow": "#fafad2",
  "lightgrey": "#d3d3d3",
  "lightgreen": "#90ee90",
  "lightpink": "#ffb6c1",
  "lightsalmon": "#ffa07a",
  "lightseagreen": "#20b2aa",
  "lightskyblue": "#87cefa",
  "lightslategray": "#778899",
  "lightsteelblue": "#b0c4de",
  "lightyellow": "#ffffe0",
  "lime": "#00ff00",
  "limegreen": "#32cd32",
  "linen": "#faf0e6",
  "magenta": "#ff00ff",
  "maroon": "#800000",
  "mediumaquamarine": "#66cdaa",
  "mediumblue": "#0000cd",
  "mediumorchid": "#ba55d3",
  "mediumpurple": "#9370d8",
  "mediumseagreen": "#3cb371",
  "mediumslateblue": "#7b68ee",
  "mediumspringgreen": "#00fa9a",
  "mediumturquoise": "#48d1cc",
  "mediumvioletred": "#c71585",
  "midnightblue": "#191970",
  "mintcream": "#f5fffa",
  "mistyrose": "#ffe4e1",
  "moccasin": "#ffe4b5",
  "navajowhite": "#ffdead",
  "navy": "#000080",
  "oldlace": "#fdf5e6",
  "olive": "#808000",
  "olivedrab": "#6b8e23",
  "orange": "#ffa500",
  "orangered": "#ff4500",
  "orchid": "#da70d6",
  "palegoldenrod": "#eee8aa",
  "palegreen": "#98fb98",
  "paleturquoise": "#afeeee",
  "palevioletred": "#d87093",
  "papayawhip": "#ffefd5",
  "peachpuff": "#ffdab9",
  "peru": "#cd853f",
  "pink": "#ffc0cb",
  "plum": "#dda0dd",
  "powderblue": "#b0e0e6",
  "purple": "#800080",
  "rebeccapurple": "#663399",
  "red": "#ff0000",
  "rosybrown": "#bc8f8f",
  "royalblue": "#4169e1",
  "saddlebrown": "#8b4513",
  "salmon": "#fa8072",
  "sandybrown": "#f4a460",
  "seagreen": "#2e8b57",
  "seashell": "#fff5ee",
  "sienna": "#a0522d",
  "silver": "#c0c0c0",
  "skyblue": "#87ceeb",
  "slateblue": "#6a5acd",
  "slategray": "#708090",
  "snow": "#fffafa",
  "springgreen": "#00ff7f",
  "steelblue": "#4682b4",
  "tan": "#d2b48c",
  "teal": "#008080",
  "thistle": "#d8bfd8",
  "tomato": "#ff6347",
  "turquoise": "#40e0d0",
  "violet": "#ee82ee",
  "wheat": "#f5deb3",
  "white": "#ffffff",
  "whitesmoke": "#f5f5f5",
  "yellow": "#ffff00",
  "yellowgreen": "#9acd32"
};

var _getHexColor = function _getHexColor(color) {

  color = color.replace('color:', '').replace(';', '').replace(' ', '');

  if (/^#([0-9a-fA-F]{6}|[0-9a-fA-F]{3})$/.test(color)) {
    return color;
  } else if (namedColors[color]) {
    return namedColors[color];
  } else if (color.indexOf('rgb') === 0) {

    var rgbArray = color.split(',');
    var convertedColor = rgbArray.length < 3 ? null : '#' + [rgbArray[0], rgbArray[1], rgbArray[2]].map(function (x) {
      var hex = parseInt(x.replace(/\D/g, ''), 10).toString(16);
      return hex.length === 1 ? '0' + hex : hex;
    }).join('');

    return (/^#([0-9a-fA-F]{6}|[0-9a-fA-F]{3})$/.test(convertedColor) ? convertedColor : null
    );
  } else {
    return null;
  }
};

var namedColors = exports.namedColors = _namedColors;
var getHexColor = exports.getHexColor = _getHexColor;

var detectColorsFromHTMLString = exports.detectColorsFromHTMLString = function detectColorsFromHTMLString(html) {
  return typeof html !== 'string' ? [] : (html.match(/color:[^;]{3,24};/g) || []).map(getHexColor).filter(function (color) {
    return color;
  });
};

var detectColorsFromDraftState = exports.detectColorsFromDraftState = function detectColorsFromDraftState(draftState) {

  var result = [];

  if (!draftState || !draftState.blocks || !draftState.blocks.length) {
    return result;
  }

  draftState.blocks.forEach(function (block) {
    if (block && block.inlineStyleRanges && block.inlineStyleRanges.length) {
      block.inlineStyleRanges.forEach(function (inlineStyle) {
        if (inlineStyle.style && inlineStyle.style.indexOf('COLOR-') >= 0) {
          result.push('#' + inlineStyle.style.split('COLOR-')[1]);
        }
      });
    }
  });

  return result.filter(function (color) {
    return color;
  });
};
});

unwrapExports(color);
var color_1 = color.namedColors;
var color_2 = color.getHexColor;
var color_3 = color.detectColorsFromHTMLString;
var color_4 = color.detectColorsFromDraftState;

var dist$1 = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ColorUtils = exports.BaseUtils = exports.ContentUtils = undefined;



var _ContentUtils = _interopRequireWildcard(content);



var _BaseUtils = _interopRequireWildcard(base);



var _ColorUtils = _interopRequireWildcard(color);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

var ContentUtils = exports.ContentUtils = _ContentUtils;
var BaseUtils = exports.BaseUtils = _BaseUtils;
var ColorUtils = exports.ColorUtils = _ColorUtils;
});

unwrapExports(dist$1);
var dist_1$1 = dist$1.ColorUtils;
var dist_2$1 = dist$1.BaseUtils;
var dist_3$1 = dist$1.ContentUtils;

var dist$2 = createCommonjsModule(function (module, exports) {
(function webpackUniversalModuleDefinition(root, factory) {
	module.exports = factory(React);
})(window, function(__WEBPACK_EXTERNAL_MODULE__2__) {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
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/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
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/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
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/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
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/******/ 		module.l = true;
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/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
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/******/ 	__webpack_require__.t = function(value, mode) {
/******/ 		if(mode & 1) value = __webpack_require__(value);
/******/ 		if(mode & 8) return value;
/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
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/******/ 		__webpack_require__.r(ns);
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/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
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/******/ 	__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;
/******/ 	};
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/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "/";
/******/
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(__webpack_require__.s = 20);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});
var compressImage = exports.compressImage = function compressImage(url) {
  var width = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1280;
  var height = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 800;


  return new Promise(function (resolve, reject) {

    var image = new Image();

    image.src = url;

    image.onerror = function (error) {
      reject(error);
    };

    image.onload = function () {

      try {

        var compressCanvas = document.createElement('canvas');
        var scale = this.width > width || this.height > height ? this.width > this.height ? width / this.width : height / this.height : 1;

        compressCanvas.width = this.width * scale;
        compressCanvas.height = this.height * scale;

        var canvasContext = compressCanvas.getContext('2d');
        canvasContext.drawImage(this, 0, 0, compressCanvas.width, compressCanvas.height);

        resolve({
          url: compressCanvas.toDataURL('image/png', 1),
          width: compressCanvas.width,
          height: compressCanvas.height
        });
      } catch (error) {
        reject(error);
      }
    };
  });
};

/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});
var UniqueIndex = exports.UniqueIndex = function UniqueIndex() {

  if (isNaN(window.__BRAFT_MM_UNIQUE_INDEX__)) {
    window.__BRAFT_MM_UNIQUE_INDEX__ = 1;
  } else {
    window.__BRAFT_MM_UNIQUE_INDEX__ += 1;
  }

  return window.__BRAFT_MM_UNIQUE_INDEX__;
};

/***/ }),
/* 2 */
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__2__;

/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = {
  remove: 'Kaldır',
  cancel: 'İptal',
  confirm: 'Onayla',
  insert: 'Seçilenleri ekle',
  width: 'Genişlik',
  height: 'Yükseklik',
  image: 'Resim',
  video: 'Görüntü',
  audio: 'Ses',
  embed: 'Nesne göm',
  caption: 'Kitaplık',
  dragTip: 'Tıkla ya da dosya sürükle',
  dropTip: 'Yüklemek için sürükleyin',
  selectAll: 'Tümünü seç',
  deselect: 'Seçimi kaldır',
  removeSelected: 'Seçilenleri kaldır',
  externalInputPlaceHolder: 'Kaynak adı|Kaynak bağlantısı',
  externalInputTip: 'Kaynak asını ve bağlantısını "|" ile ayırın ve Enter\' a basın.',
  addLocalFile: 'Yerel\' den ekle',
  addExternalSource: 'Harici kaynaktan ekle',
  unnamedItem: 'Adlandırılmamış giriş',
  confirmInsert: 'Seçilenleri ekle'
};

/***/ }),
/* 4 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = {
  remove: '削除する',
  cancel: 'キャンセル',
  confirm: '確認する',
  insert: '選択したアイテムを挿入',
  width: '幅',
  height: '身長',
  image: '絵',
  video: 'ビデオ',
  audio: '音声',
  embed: '埋め込みメディア',
  caption: 'メディアライブラリー',
  dragTip: 'ファイルをこの位置までクリックまたはドラッグします',
  dropTip: 'アップロードするマウスを放します',
  selectAll: 'すべて選択',
  deselect: '選択を解除',
  removeSelected: '選択したアイテムを削除',
  externalInputPlaceHolder: 'リソース名|リソースアドレス',
  externalInputTip: 'リソース名とリソースアドレスは "|"で区切ります。',
  addLocalFile: 'ローカルリソースを追加する',
  addExternalSource: 'ネットワークリソースを追加する',
  unnamedItem: '名前のないアイテム',
  confirmInsert: '選択したアイテムを挿入'
};

/***/ }),
/* 5 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = {
  remove: '삭제',
  cancel: '취소',
  confirm: '확인',
  insert: '선택한항목삽입',
  width: '너비',
  height: '높이',
  image: '그림',
  video: '비디오',
  audio: '오디오',
  embed: '임베디드미디어',
  caption: '미디어라이브러리',
  dragTip: '파일을 클릭하거나이 지점으로 드래그하십시오.',
  dropTip: '업로드하려면마우스를놓으십시오.',
  selectAll: '모두 선택',
  deselect: '선택 취소',
  removeSelected: '선택한 항목 삭제',
  externalInputPlaceHolder: '리소스 이름 | 리소스 주소',
  externalInputTip: '자원 이름과 자원 주소를 "|"',
  addLocalFile: '로컬 리소스 추가',
  addExternalSource: '네트워크 리소스 추가',
  unnamedItem: '이름없는 항목',
  confirmInsert: '선택한 항목 삽입'
};

/***/ }),
/* 6 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = {
  remove: 'Usuń',
  cancel: 'Anuluj',
  confirm: 'Potwierdź',
  insert: 'Wstaw wybrane elementy',
  width: 'Szerokość',
  height: 'Wysokość',
  image: 'Obraz',
  video: 'Wideo',
  audio: 'Dźwięk',
  embed: 'Obiekt',
  caption: 'Biblioteka mediów',
  dragTip: 'Kliknij lub przenieś tu pliki',
  dropTip: 'Upuść aby dodać plik',
  selectAll: 'Zaznacz wszystko',
  deselect: 'Odznacz',
  removeSelected: 'Usuń wybrane',
  externalInputPlaceHolder: 'Nazwa źródła|Adres URL',
  externalInputTip: 'Oddziel nazwę i adres URL źródła z pomocą "|", Potwierdź Enter-em',
  addLocalFile: 'Dodaj z komputera',
  addExternalSource: 'Dodaj z Internetu',
  unnamedItem: 'Bez nazwy',
  confirmInsert: 'Dodaj wybrane elementy'
};

/***/ }),
/* 7 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = {
  remove: '删除',
  cancel: '取消',
  confirm: '确认',
  insert: '插入所选项目',
  width: '宽度',
  height: '高度',
  image: '图片',
  video: '视频',
  audio: '音频',
  embed: '嵌入式媒体',
  caption: '媒体库',
  dragTip: '点击或拖动文件至此',
  dropTip: '放开鼠标以上传',
  selectAll: '选择全部',
  deselect: '取消选择',
  removeSelected: '删除选中项目',
  externalInputPlaceHolder: '资源名称|资源地址',
  externalInputTip: '使用“|”分隔资源名称和资源地址',
  addLocalFile: '添加本地资源',
  addExternalSource: '添加网络资源',
  unnamedItem: '未命名项目',
  confirmInsert: '插入选中项目'
};

/***/ }),
/* 8 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = {
  remove: '删除',
  cancel: '取消',
  confirm: '确认',
  insert: '插入所选项目',
  width: '宽度',
  height: '高度',
  image: '图片',
  video: '视频',
  audio: '音频',
  embed: '嵌入式媒体',
  caption: '媒体库',
  dragTip: '点击或拖动文件至此',
  dropTip: '放开鼠标以上传',
  selectAll: '选择全部',
  deselect: '取消选择',
  removeSelected: '删除选中项目',
  externalInputPlaceHolder: '资源名称|资源地址',
  externalInputTip: '使用“|”分隔资源名称和资源地址',
  addLocalFile: '添加本地资源',
  addExternalSource: '添加网络资源',
  unnamedItem: '未命名项目',
  confirmInsert: '插入选中项目'
};

/***/ }),
/* 9 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = {
  remove: 'Remove',
  cancel: 'Cancel',
  confirm: 'Confirm',
  insert: 'Insert Selected Items',
  width: 'Width',
  height: 'Height',
  image: 'Image',
  video: 'Video',
  audio: 'Audio',
  embed: 'Embed',
  caption: 'Media Library',
  dragTip: 'Click Or Drag Files Here',
  dropTip: 'Drop To Upload',
  selectAll: 'Select All',
  deselect: 'Deselect',
  removeSelected: 'Remove Selected Items',
  externalInputPlaceHolder: 'Source Name|Source URL',
  externalInputTip: 'Split source name and source URL with "|", confirm by hit Enter.',
  addLocalFile: 'Add from local',
  addExternalSource: 'Add from Internet',
  unnamedItem: 'Unnamed Item',
  confirmInsert: 'Insert selected items'
};

/***/ }),
/* 10 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _en = __webpack_require__(9);

var _en2 = _interopRequireDefault(_en);

var _zh = __webpack_require__(8);

var _zh2 = _interopRequireDefault(_zh);

var _zhHant = __webpack_require__(7);

var _zhHant2 = _interopRequireDefault(_zhHant);

var _pl = __webpack_require__(6);

var _pl2 = _interopRequireDefault(_pl);

var _kr = __webpack_require__(5);

var _kr2 = _interopRequireDefault(_kr);

var _jpn = __webpack_require__(4);

var _jpn2 = _interopRequireDefault(_jpn);

var _tr = __webpack_require__(3);

var _tr2 = _interopRequireDefault(_tr);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = {
  "en": _en2.default,
  "zh": _zh2.default,
  "zh-hant": _zhHant2.default,
  "pl": _pl2.default,
  "kr": _kr2.default,
  "jpn": _jpn2.default,
  "tr": _tr2.default
};

/***/ }),
/* 11 */
/***/ (function(module, exports) {


/**
 * When source maps are enabled, `style-loader` uses a link element with a data-uri to
 * embed the css on the page. This breaks all relative urls because now they are relative to a
 * bundle instead of the current page.
 *
 * One solution is to only use full urls, but that may be impossible.
 *
 * Instead, this function "fixes" the relative urls to be absolute according to the current page location.
 *
 * A rudimentary test suite is located at `test/fixUrls.js` and can be run via the `npm test` command.
 *
 */

module.exports = function (css) {
  // get current location
  var location = typeof window !== "undefined" && window.location;

  if (!location) {
    throw new Error("fixUrls requires window.location");
  }

	// blank or null?
	if (!css || typeof css !== "string") {
	  return css;
  }

  var baseUrl = location.protocol + "//" + location.host;
  var currentDir = baseUrl + location.pathname.replace(/\/[^\/]*$/, "/");

	// convert each url(...)
	/*
	This regular expression is just a way to recursively match brackets within
	a string.

	 /url\s*\(  = Match on the word "url" with any whitespace after it and then a parens
	   (  = Start a capturing group
	     (?:  = Start a non-capturing group
	         [^)(]  = Match anything that isn't a parentheses
	         |  = OR
	         \(  = Match a start parentheses
	             (?:  = Start another non-capturing groups
	                 [^)(]+  = Match anything that isn't a parentheses
	                 |  = OR
	                 \(  = Match a start parentheses
	                     [^)(]*  = Match anything that isn't a parentheses
	                 \)  = Match a end parentheses
	             )  = End Group
              *\) = Match anything and then a close parens
          )  = Close non-capturing group
          *  = Match anything
       )  = Close capturing group
	 \)  = Match a close parens

	 /gi  = Get all matches, not the first.  Be case insensitive.
	 */
	var fixedCss = css.replace(/url\s*\(((?:[^)(]|\((?:[^)(]+|\([^)(]*\))*\))*)\)/gi, function(fullMatch, origUrl) {
		// strip quotes (if they exist)
		var unquotedOrigUrl = origUrl
			.trim()
			.replace(/^"(.*)"$/, function(o, $1){ return $1; })
			.replace(/^'(.*)'$/, function(o, $1){ return $1; });

		// already a full url? no change
		if (/^(#|data:|http:\/\/|https:\/\/|file:\/\/\/|\s*$)/i.test(unquotedOrigUrl)) {
		  return fullMatch;
		}

		// convert the url to a full url
		var newUrl;

		if (unquotedOrigUrl.indexOf("//") === 0) {
		  	//TODO: should we add protocol?
			newUrl = unquotedOrigUrl;
		} else if (unquotedOrigUrl.indexOf("/") === 0) {
			// path should be relative to the base url
			newUrl = baseUrl + unquotedOrigUrl; // already starts with '/'
		} else {
			// path should be relative to current directory
			newUrl = currentDir + unquotedOrigUrl.replace(/^\.\//, ""); // Strip leading './'
		}

		// send back the fixed url(...)
		return "url(" + JSON.stringify(newUrl) + ")";
	});

	// send back the fixed css
	return fixedCss;
};


/***/ }),
/* 12 */
/***/ (function(module, exports, __webpack_require__) {

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/

var stylesInDom = {};

var	memoize = function (fn) {
	var memo;

	return function () {
		if (typeof memo === "undefined") memo = fn.apply(this, arguments);
		return memo;
	};
};

var isOldIE = memoize(function () {
	// Test for IE <= 9 as proposed by Browserhacks
	// @see http://browserhacks.com/#hack-e71d8692f65334173fee715c222cb805
	// Tests for existence of standard globals is to allow style-loader
	// to operate correctly into non-standard environments
	// @see https://github.com/webpack-contrib/style-loader/issues/177
	return window && document && document.all && !window.atob;
});

var getTarget = function (target) {
  return document.querySelector(target);
};

var getElement = (function (fn) {
	var memo = {};

	return function(target) {
                // If passing function in options, then use it for resolve "head" element.
                // Useful for Shadow Root style i.e
                // {
                //   insertInto: function () { return document.querySelector("#foo").shadowRoot }
                // }
                if (typeof target === 'function') {
                        return target();
                }
                if (typeof memo[target] === "undefined") {
			var styleTarget = getTarget.call(this, target);
			// Special case to return head of iframe instead of iframe itself
			if (window.HTMLIFrameElement && styleTarget instanceof window.HTMLIFrameElement) {
				try {
					// This will throw an exception if access to iframe is blocked
					// due to cross-origin restrictions
					styleTarget = styleTarget.contentDocument.head;
				} catch(e) {
					styleTarget = null;
				}
			}
			memo[target] = styleTarget;
		}
		return memo[target]
	};
})();

var singleton = null;
var	singletonCounter = 0;
var	stylesInsertedAtTop = [];

var	fixUrls = __webpack_require__(11);

module.exports = function(list, options) {
	if (typeof DEBUG !== "undefined" && DEBUG) {
		if (typeof document !== "object") throw new Error("The style-loader cannot be used in a non-browser environment");
	}

	options = options || {};

	options.attrs = typeof options.attrs === "object" ? options.attrs : {};

	// Force single-tag solution on IE6-9, which has a hard limit on the # of <style>
	// tags it will allow on a page
	if (!options.singleton && typeof options.singleton !== "boolean") options.singleton = isOldIE();

	// By default, add <style> tags to the <head> element
        if (!options.insertInto) options.insertInto = "head";

	// By default, add <style> tags to the bottom of the target
	if (!options.insertAt) options.insertAt = "bottom";

	var styles = listToStyles(list, options);

	addStylesToDom(styles, options);

	return function update (newList) {
		var mayRemove = [];

		for (var i = 0; i < styles.length; i++) {
			var item = styles[i];
			var domStyle = stylesInDom[item.id];

			domStyle.refs--;
			mayRemove.push(domStyle);
		}

		if(newList) {
			var newStyles = listToStyles(newList, options);
			addStylesToDom(newStyles, options);
		}

		for (var i = 0; i < mayRemove.length; i++) {
			var domStyle = mayRemove[i];

			if(domStyle.refs === 0) {
				for (var j = 0; j < domStyle.parts.length; j++) domStyle.parts[j]();

				delete stylesInDom[domStyle.id];
			}
		}
	};
};

function addStylesToDom (styles, options) {
	for (var i = 0; i < styles.length; i++) {
		var item = styles[i];
		var domStyle = stylesInDom[item.id];

		if(domStyle) {
			domStyle.refs++;

			for(var j = 0; j < domStyle.parts.length; j++) {
				domStyle.parts[j](item.parts[j]);
			}

			for(; j < item.parts.length; j++) {
				domStyle.parts.push(addStyle(item.parts[j], options));
			}
		} else {
			var parts = [];

			for(var j = 0; j < item.parts.length; j++) {
				parts.push(addStyle(item.parts[j], options));
			}

			stylesInDom[item.id] = {id: item.id, refs: 1, parts: parts};
		}
	}
}

function listToStyles (list, options) {
	var styles = [];
	var newStyles = {};

	for (var i = 0; i < list.length; i++) {
		var item = list[i];
		var id = options.base ? item[0] + options.base : item[0];
		var css = item[1];
		var media = item[2];
		var sourceMap = item[3];
		var part = {css: css, media: media, sourceMap: sourceMap};

		if(!newStyles[id]) styles.push(newStyles[id] = {id: id, parts: [part]});
		else newStyles[id].parts.push(part);
	}

	return styles;
}

function insertStyleElement (options, style) {
	var target = getElement(options.insertInto);

	if (!target) {
		throw new Error("Couldn't find a style target. This probably means that the value for the 'insertInto' parameter is invalid.");
	}

	var lastStyleElementInsertedAtTop = stylesInsertedAtTop[stylesInsertedAtTop.length - 1];

	if (options.insertAt === "top") {
		if (!lastStyleElementInsertedAtTop) {
			target.insertBefore(style, target.firstChild);
		} else if (lastStyleElementInsertedAtTop.nextSibling) {
			target.insertBefore(style, lastStyleElementInsertedAtTop.nextSibling);
		} else {
			target.appendChild(style);
		}
		stylesInsertedAtTop.push(style);
	} else if (options.insertAt === "bottom") {
		target.appendChild(style);
	} else if (typeof options.insertAt === "object" && options.insertAt.before) {
		var nextSibling = getElement(options.insertInto + " " + options.insertAt.before);
		target.insertBefore(style, nextSibling);
	} else {
		throw new Error("[Style Loader]\n\n Invalid value for parameter 'insertAt' ('options.insertAt') found.\n Must be 'top', 'bottom', or Object.\n (https://github.com/webpack-contrib/style-loader#insertat)\n");
	}
}

function removeStyleElement (style) {
	if (style.parentNode === null) return false;
	style.parentNode.removeChild(style);

	var idx = stylesInsertedAtTop.indexOf(style);
	if(idx >= 0) {
		stylesInsertedAtTop.splice(idx, 1);
	}
}

function createStyleElement (options) {
	var style = document.createElement("style");

	if(options.attrs.type === undefined) {
		options.attrs.type = "text/css";
	}

	addAttrs(style, options.attrs);
	insertStyleElement(options, style);

	return style;
}

function createLinkElement (options) {
	var link = document.createElement("link");

	if(options.attrs.type === undefined) {
		options.attrs.type = "text/css";
	}
	options.attrs.rel = "stylesheet";

	addAttrs(link, options.attrs);
	insertStyleElement(options, link);

	return link;
}

function addAttrs (el, attrs) {
	Object.keys(attrs).forEach(function (key) {
		el.setAttribute(key, attrs[key]);
	});
}

function addStyle (obj, options) {
	var style, update, remove, result;

	// If a transform function was defined, run it on the css
	if (options.transform && obj.css) {
	    result = options.transform(obj.css);

	    if (result) {
	    	// If transform returns a value, use that instead of the original css.
	    	// This allows running runtime transformations on the css.
	    	obj.css = result;
	    } else {
	    	// If the transform function returns a falsy value, don't add this css.
	    	// This allows conditional loading of css
	    	return function() {
	    		// noop
	    	};
	    }
	}

	if (options.singleton) {
		var styleIndex = singletonCounter++;

		style = singleton || (singleton = createStyleElement(options));

		update = applyToSingletonTag.bind(null, style, styleIndex, false);
		remove = applyToSingletonTag.bind(null, style, styleIndex, true);

	} else if (
		obj.sourceMap &&
		typeof URL === "function" &&
		typeof URL.createObjectURL === "function" &&
		typeof URL.revokeObjectURL === "function" &&
		typeof Blob === "function" &&
		typeof btoa === "function"
	) {
		style = createLinkElement(options);
		update = updateLink.bind(null, style, options);
		remove = function () {
			removeStyleElement(style);

			if(style.href) URL.revokeObjectURL(style.href);
		};
	} else {
		style = createStyleElement(options);
		update = applyToTag.bind(null, style);
		remove = function () {
			removeStyleElement(style);
		};
	}

	update(obj);

	return function updateStyle (newObj) {
		if (newObj) {
			if (
				newObj.css === obj.css &&
				newObj.media === obj.media &&
				newObj.sourceMap === obj.sourceMap
			) {
				return;
			}

			update(obj = newObj);
		} else {
			remove();
		}
	};
}

var replaceText = (function () {
	var textStore = [];

	return function (index, replacement) {
		textStore[index] = replacement;

		return textStore.filter(Boolean).join('\n');
	};
})();

function applyToSingletonTag (style, index, remove, obj) {
	var css = remove ? "" : obj.css;

	if (style.styleSheet) {
		style.styleSheet.cssText = replaceText(index, css);
	} else {
		var cssNode = document.createTextNode(css);
		var childNodes = style.childNodes;

		if (childNodes[index]) style.removeChild(childNodes[index]);

		if (childNodes.length) {
			style.insertBefore(cssNode, childNodes[index]);
		} else {
			style.appendChild(cssNode);
		}
	}
}

function applyToTag (style, obj) {
	var css = obj.css;
	var media = obj.media;

	if(media) {
		style.setAttribute("media", media);
	}

	if(style.styleSheet) {
		style.styleSheet.cssText = css;
	} else {
		while(style.firstChild) {
			style.removeChild(style.firstChild);
		}

		style.appendChild(document.createTextNode(css));
	}
}

function updateLink (link, options, obj) {
	var css = obj.css;
	var sourceMap = obj.sourceMap;

	/*
		If convertToAbsoluteUrls isn't defined, but sourcemaps are enabled
		and there is no publicPath defined then lets turn convertToAbsoluteUrls
		on by default.  Otherwise default to the convertToAbsoluteUrls option
		directly
	*/
	var autoFixUrls = options.convertToAbsoluteUrls === undefined && sourceMap;

	if (options.convertToAbsoluteUrls || autoFixUrls) {
		css = fixUrls(css);
	}

	if (sourceMap) {
		// http://stackoverflow.com/a/26603875
		css += "\n/*# sourceMappingURL=data:application/json;base64," + btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))) + " */";
	}

	var blob = new Blob([css], { type: "text/css" });

	var oldSrc = link.href;

	link.href = URL.createObjectURL(blob);

	if(oldSrc) URL.revokeObjectURL(oldSrc);
}


/***/ }),
/* 13 */
/***/ (function(module, exports) {

module.exports = "data:font/ttf;base64,AAEAAAALAIAAAwAwT1MvMg8SBsIAAAC8AAAAYGNtYXBWNv1DAAABHAAAANRnYXNwAAAAEAAAAfAAAAAIZ2x5ZtZLKCQAAAH4AAAPTGhlYWQT25ZrAAARRAAAADZoaGVhB8ID3gAAEXwAAAAkaG10eGoAC+sAABGgAAAAdGxvY2EqcC3wAAASFAAAADxtYXhwACcAewAAElAAAAAgbmFtZZlKCfsAABJwAAABhnBvc3QAAwAAAAAT+AAAACAAAwPsAZAABQAAApkCzAAAAI8CmQLMAAAB6wAzAQkAAAAAAAAAAAAAAAAAAAABEAAAAAAAAAAAAAAAAAAAAABAAADprAPA/8AAQAPAAEAAAAABAAAAAAAAAAAAAAAgAAAAAAADAAAAAwAAABwAAQADAAAAHAADAAEAAAAcAAQAuAAAACoAIAAEAAoAAQAg4DTgN+BC4V3iQ+gN6Mno/ukD6QjpD+kT6RjpHOkm6YDprP/9//8AAAAAACDgNOA34ELhXeJD6A3oyej+6QHpB+kO6RHpFukc6SbpgOms//3//wAB/+Mf0B/OH8Qeqh3FF/wXQRcNFwsXCBcDFwIXABb9FvQWmxZwAAMAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAH//wAPAAEAAAAAAAAAAAACAAA3OQEAAAAAAQAAAAAAAAAAAAIAADc5AQAAAAABAAAAAAAAAAAAAgAANzkBAAAAAAIBAACBAwAC1QADAAcAAAEzESMhETMRAlaqqv6qqgLV/awCVP2sAAABAVYAgQMqAtUAAgAACQIBVgHU/iwC1f7W/tYAAQCqACsDVgOBAC4AAAEyFx4BFxYVFAcOAQcGIyInLgEnJjUzFBceARcWMzI3PgE3NjU0Jy4BJyYjFSc3AgBGPz5dGxsbG10+PkdGPz5dGxtWFBRFLy81NS8vRRQUFBRFLy811tYC1RsbXD4+Rkc+Pl0bGxsbXT4+RzYuL0UUFBQURS8uNjUvLkYUFKzW1gAAAwBWAAEDqgNVABsANwA7AAAlMjc+ATc2NTQnLgEnJiMiBw4BBwYVFBceARcWEzIXHgEXFhUUBw4BBwYjIicuAScmNTQ3PgE3NgMhFSECAEY/Pl0bGxsbXT4+R0Y/Pl0bGxsbXT4+R1hOTnMiISEic05NWVhOTnMiISEic05NfQGs/lRVGxtdPj5HRj4/XRsbGxtdPz5GRz4+XRsbAwAiIXRNTlhZTU50ISEhIXROTVlYTk10ISL+gFQAAAABAKoAAQOAA1UAHwAAATMRIREUBisBIiY1ESE1IxUUBiMhIiY9ATQ2MyEyFhUDAID+qhgSVhIYAaoqGBL+ABIaGhICABIYAwH+qv6AEhgYEgHWqioSGhoSqhIYGBIAAAABAIAAAwOAA1UAMwAAJTIWFRQGIyImNTwBNyUOASMiJjU0NjMyFhclLgE1NDYzMhYVFAYjIiYnBR4BFRQGBwU+AQMAM0lJMzNJAv7SEiwaNExLNRktEgEsAQNLNTRMSzUZLRL+1AEDAgIBMBAs/UkzM0tLMwcPBrAREUs1NEwSEK4HDwg0TEw0NUsTEbAIDwcIDwewDxEAAAMAVgArA6oDVQACAAYAGgAALQI3FTM1FyERFAYjISImNREhNTQ2OwEyFhUBgAFA/sAqrFQBADAk/VQkMAEAMCSsJDCr1qrWVlZW/dYkMjIkAipWJDAwJAAEAIAAgQOAAtUAAwAHAAsADwAAEyEVIRU1IRUBNSEVJTUhFYADAP0AAwD9AAMA/QADAALVVKxWVv6sVFSqVlYABABVACIDqwN3AAQAIQA9AEIAACUzESMREyIHDgEHBhUUFx4BFxYzMjc+ATc2NTQnLgEnJiMRIicuAScmNTQ3PgE3NjMyFx4BFxYVFAcOAQcGAzM1IxUB1VZWK1hOTnQhIiIhdE5OWFhOTnQhIiIhdE5OWEc+Pl0aGxsaXT4+R0c+Pl0aGxsaXT4+clZW9wEA/wACgCEic05OWFlNTnQhIiIhdE5NWVhOTnMiIf0AGxtdPj5HRj8+XBsbGxtcPj9GRz4+XRsbAdZVVQAABABVACIDqwN3AAQAIQA9AFIAACUzNSMVEyIHDgEHBhUUFx4BFxYzMjc+ATc2NTQnLgEnJiMRIicuAScmNTQ3PgE3NjMyFx4BFxYVFAcOAQcGAyIGFTM0NjMyFhUUBhUzNDY1NCYjAdVWVitYTk50ISIiIXROTlhYTk50ISIiIXROTlhHPj5dGhsbGl0+PkdHPj5dGhsbGl0+PkdHZFYyIyMygFaAZEfNVVUCqiEic05OWFlNTnQhIiIhdE5NWVhOTnMiIf0AGxtdPj5HRj8+XBsbGxtcPj9GRz4+XRsbAlZkRyMyMiNALWhIPVBHZAAAAgBVAM0DqwLNAAUACwAAASc3JwkBJTcnNwkBAZHExDz/AAEAARrExDwBAP8AAQnExDz/AP8APMTEPP8A/wAAAAMAVQAiA6sDdwAcACsAOgAAASIHDgEHBhUUFx4BFxYzMjc+ATc2NTQnLgEnJiMBNDc+ATc2MzIWFwEuATUBIiYnAR4BFRQHDgEHBiMCAFhOTXQiIiIidE1OWFhOTXQiIiIidE1OWP6rGxtcPj9GOmot/iIjJQFVOmotAd4jJRsbXD4/RgN3ISJ0Tk1YWE5OdCEiIiF0Tk5YWE1OdCIh/lZGPj5dGxslI/4iLWo6/qomIwHeLWs5Rz4+XRsbAAAAAAMAgADNA4ACzQADAAcACwAANyE1ITUhNSE1FSE1gAMA/QADAP0AAwDNVYBV1lZWAAEAZAAlA1wDXABEAAABERQHBgcGBwYjIicmJyYnJjU0NzY3Njc2MzIXEQURFAcGBwYHBiMiJyYnJicmNTQ3Njc2NzYzMhcRNDc2NyU2MzIXFhUDXBERGhkaGRYXGRoZGhEREREaGRoZFzMr/oURERoZGhkXFhkaGRoRERERGhkaGRY0KwoJDwGbBggUDg4DLP3WGBQTCgsFBQUFCwoTFBgZExQKCwUFEwEKdv6iGRMTCwsFBQUFCwsTExkZExMLCgYFEwHeDw0MBX8CDg4UAAAEAHUAQgOJA1YALwA8AGIAeAAAAS4BBw4BJy4BJy4BBwYiJyYGBw4BJyYGBxQVHAEVFBUeATM2MzoBMzIzMjY3PAE1BSImNTQ2MzIWFRQGJyUqASM8ATU6ATMUFhUUFxwBFQYHFAYHDgEnLgE3PgE3OgEzPAE1BT4BNzoBMxQWBw4BJy4BNz4BNzoBMwKBARkZChUJCxcEFEMvBw8HHikMDCgdFyILCxgWNDM0ZzQzNBsaAf77L0FBMDBAQDEBtx8/IDRoNgEBAQENCxVFICIlBgc3JAcNCf7OAQICEyQTAwUFSiMmOAIBOiYHEAkCzhcaAQEBAwIJCC0fCAEBBhgbGxYGBBMVKCgpUCgoKQ8VARcaSpRK7T8uMEA/LzBAARchPyAKEgkzMjNmMjMzFCwRIBAOD0IjJjQDN2053QwUCi5dLSUsBgVEJig+BAAAAAAEAAAAAAQAA0AAGwAzAE8AUwAAARQXHgEXFjMyNz4BNzY1NCcuAScmIyIHDgEHBgEjLgEjISIGByMiBhURFBYzITI2NRE0JgEiJy4BJyY1NDc+ATc2MzIXHgEXFhUUBw4BBwYBIzUzATAQETgmJisrJiY4ERAQETgmJisrJiY4ERACkOAMJDD/ADAkDOAaJiYaA4AaJib+Jjs0M00XFhYXTTM0Ozs0M00XFhYXTTM0AYWAgAFgKyYmOBEQEBE4JiYrKyYmOBEQEBE4JiYBNTBQUDAmGv3AGiYmGgJAGib9hBYXTTM0Ozs0M00XFhYXTTM0Ozs0M00XFgG8QAABAJEAogOAAt4ABgAAAScHFwEnAQGAszzvAgA8/jwBGrM87wIAPP48AAAAAAEA4gCAAx4CyQAmAAABNzY0JyYiDwEnJiIHBhQfAQcGFBceATMyNj8BFx4BMzI2NzY0LwECPOINDQwkDOLiDCQMDQ3i4g0NBhAICBAG4uIGEAgIEAYNDeIBq+IMIw0MDOLiDAwNIwzi4g0jDAcGBgfh4QcGBgcMIw3iAAACAIAAYwNqA00AIgAvAAABIyc+ATU0Jy4BJyYjIgcOAQcGFRQXHgEXFjMyNjcXFRc3JyEiJjU0NjMyFhUUBiMClSEMHyQWFkszMjo5MzJLFhYWFksyMzk0XCUL1j/V/wBPcXFPUHBwUAF3DCRdMzoyM0sWFhYWSzMyOjkyM0sWFiQfDCLUP9VxT1BwcFBPcQACAGQAIgOcA3cATQBZAAABPgE1NCYnNz4BLwEuAQ8BLgEvAS4BKwEiBg8BDgEHJyYGDwEGFh8BDgEVFBYXBw4BHwEeAT8BHgEfAR4BOwEyNj8BPgE3FxY2PwE2JicFIiY1NDYzMhYVFAYDPQECAgFaBgMEVQQPB2oRJBQQAQwIqggMARAUJBFqBw8EVQQDBloBAgIBWgYDBFUEDwdqESQUEAEMCKoIDAEQFCQRagcPBFUEAwb+aT5XVz4+V1cBowoVCwsUC0YFDweUBwUDKgwVCHIHCgoHcggVDCoDBQeUBw8FRgsVCgsVCkYFEAeTBwUCKw0VCHEICgoIcQgVDSsDBgeTBxAFJlg+PldXPj5YAAEA1QCiAysC9wALAAABIREjESE1IREzESEDK/8AVv8AAQBWAQABov8AAQBVAQD/AAAAAAAJAAAAQAQAA0AAAwAHAAsADwATABcAGwAfACIAABMRIREBIzUzNSM1MzUjNTMBIREhEyM1MzUjNTM1IzUzBRElAAQA/MCAgICAgIACQP4AAgDAgICAgICA/cABAANA/QADAP1AgICAgID9gAKA/YCAgICAgID+gMAAAAAABgBA/8ADwAPAABkAIQA5AEcAVQBjAAABLgEnLgEnLgEjISIGFREUFjMhMjY1ETQmJyceARcjNR4BExQGIyEiJjURNDYzMDM6ATMyMRUUFjsBAyEiJjU0NjMhMhYVFAYnISImNTQ2MyEyFhUUBichIiY1NDYzITIWFRQGA5YRLRkaMxcnKQv+ECEvLyEC4CEvDhyFFyUNmhEphgkH/SAHCQkHTU66TU4TDeCg/kANExMNAcANExMN/kANExMNAcANExMN/kANExMNAcANExMC2xczGhktERwOLyH8oCEvLyECcAspJzYXKRGaDSX86AcJCQcDYAcJ4A0T/gATDQ0TEw0NE4ATDQ0TEw0NE4ATDQ0TEw0NEwAAAAcAAP/ABAADRgALABcAIwAvADsARwBTAAAlNDYzMhYVFAYjIiYBNDYzMhYVFAYjIiYlNDYzMhYVFAYjIiYBNDYzMhYVFAYjIiYBNDYzMhYVFAYjIiYlNDYzMhYVFAYjIiYBNDYzMhYVFAYjIiYBoDgoKDg4KCg4/mA4KCg4OCgoOANAOCgoODgoKDj9OjgoKDg4KCg4Akw4KCg4OCgoOP20OCgoODgoKDgCTDgoKDg4KCg4ICg4OCgoODgByCg4OCgoODgoKDg4KCg4OAFOKDg4KCg4OP3cKDg4KCg4OCgoODgoKDg4AnQoODgoKDg4AAUAfAAAA4QDVQAiAC0AOABGAFQAAAEjNTQmKwEiBh0BIyIGFRQWOwERFBYzITI2NREzMjY1NCYjJTQ2OwEyFh0BIzUBFAYjISImNREhEQEiBh0BFBYzMjY9ATQmMyIGHQEUFjMyNj0BNCYDXZtEMJwwRJsQFxcQJ0QwAYQwRCcQFxcQ/i8WEJwQFugBXRcQ/nwQFwHS/skQFhYQEBcXjBAXFxAQFhYCuicwREQwJxcQEBb+BzBERDAB+RYQEBcnEBcXECcn/ZMQFhYQAfn+BwGEFxDoEBcXEOgQFxcQ6BAXFxDoEBcAAAABAAAAAQAANAmLwV8PPPUACwQAAAAAANheKPcAAAAA2F4o9wAA/8AEAAPAAAAACAACAAAAAAAAAAEAAAPA/8AAAAQAAAAAAAQAAAEAAAAAAAAAAAAAAAAAAAAdBAAAAAAAAAAAAAAAAgAAAAQAAQAEAAFWBAAAqgQAAFYEAACqBAAAgAQAAFYEAACABAAAVQQAAFUEAABVBAAAVQQAAIAEAABkBAAAdQQAAAAEAACRBAAA4gQAAIAEAABkBAAA1QQAAAAEAABABAAAAAQAAHwAAAAAAAoAFAAeADIAQACIAOYBFgFiAY4BrgIUAowCrAMMAyQDjAQ0BLIEyAUGBU4F1gXwBi4GugcyB6YAAQAAAB0AeQAJAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAAA4ArgABAAAAAAABAAcAAAABAAAAAAACAAcAYAABAAAAAAADAAcANgABAAAAAAAEAAcAdQABAAAAAAAFAAsAFQABAAAAAAAGAAcASwABAAAAAAAKABoAigADAAEECQABAA4ABwADAAEECQACAA4AZwADAAEECQADAA4APQADAAEECQAEAA4AfAADAAEECQAFABYAIAADAAEECQAGAA4AUgADAAEECQAKADQApGljb21vb24AaQBjAG8AbQBvAG8AblZlcnNpb24gMS4wAFYAZQByAHMAaQBvAG4AIAAxAC4AMGljb21vb24AaQBjAG8AbQBvAG8Abmljb21vb24AaQBjAG8AbQBvAG8AblJlZ3VsYXIAUgBlAGcAdQBsAGEAcmljb21vb24AaQBjAG8AbQBvAG8AbkZvbnQgZ2VuZXJhdGVkIGJ5IEljb01vb24uAEYAbwBuAHQAIABnAGUAbgBlAHIAYQB0AGUAZAAgAGIAeQAgAEkAYwBvAE0AbwBvAG4ALgAAAAMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";

/***/ }),
/* 14 */
/***/ (function(module, exports) {

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
// css base code, injected by the css-loader
module.exports = function(useSourceMap) {
	var list = [];

	// return the list of modules as css string
	list.toString = function toString() {
		return this.map(function (item) {
			var content = cssWithMappingToString(item, useSourceMap);
			if(item[2]) {
				return "@media " + item[2] + "{" + content + "}";
			} else {
				return content;
			}
		}).join("");
	};

	// import a list of modules into the list
	list.i = function(modules, mediaQuery) {
		if(typeof modules === "string")
			modules = [[null, modules, ""]];
		var alreadyImportedModules = {};
		for(var i = 0; i < this.length; i++) {
			var id = this[i][0];
			if(typeof id === "number")
				alreadyImportedModules[id] = true;
		}
		for(i = 0; i < modules.length; i++) {
			var item = modules[i];
			// skip already imported module
			// this implementation is not 100% perfect for weird media query combinations
			//  when a module is imported multiple times with different media queries.
			//  I hope this will never occur (Hey this way we have smaller bundles)
			if(typeof item[0] !== "number" || !alreadyImportedModules[item[0]]) {
				if(mediaQuery && !item[2]) {
					item[2] = mediaQuery;
				} else if(mediaQuery) {
					item[2] = "(" + item[2] + ") and (" + mediaQuery + ")";
				}
				list.push(item);
			}
		}
	};
	return list;
};

function cssWithMappingToString(item, useSourceMap) {
	var content = item[1] || '';
	var cssMapping = item[3];
	if (!cssMapping) {
		return content;
	}

	if (useSourceMap && typeof btoa === 'function') {
		var sourceMapping = toComment(cssMapping);
		var sourceURLs = cssMapping.sources.map(function (source) {
			return '/*# sourceURL=' + cssMapping.sourceRoot + source + ' */'
		});

		return [content].concat(sourceURLs).concat([sourceMapping]).join('\n');
	}

	return [content].join('\n');
}

// Adapted from convert-source-map (MIT)
function toComment(sourceMap) {
	// eslint-disable-next-line no-undef
	var base64 = btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap))));
	var data = 'sourceMappingURL=data:application/json;charset=utf-8;base64,' + base64;

	return '/*# ' + data + ' */';
}


/***/ }),
/* 15 */
/***/ (function(module, exports) {

module.exports = function escape(url) {
    if (typeof url !== 'string') {
        return url
    }
    // If url is already wrapped in quotes, remove them
    if (/^['"].*['"]$/.test(url)) {
        url = url.slice(1, -1);
    }
    // Should url be wrapped?
    // See https://drafts.csswg.org/css-values-3/#urls
    if (/["'() \t\n]/.test(url)) {
        return '"' + url.replace(/"/g, '\\"').replace(/\n/g, '\\n') + '"'
    }

    return url
};


/***/ }),
/* 16 */
/***/ (function(module, exports, __webpack_require__) {

var escape = __webpack_require__(15);
exports = module.exports = __webpack_require__(14)(false);
// imports


// module
exports.push([module.i, "@font-face {\n  font-family: 'bf-icons';\n  src: url(" + escape(__webpack_require__(13)) + ") format(\"truetype\");\n  font-weight: normal;\n  font-style: normal; }\n\n.braft-finder [class^=\"braft-icon-\"], .braft-finder [class*=\" braft-icon-\"] {\n  /* use !important to prevent issues with browser extensions that change fonts */\n  font-family: 'bf-icons' !important;\n  font-style: normal;\n  font-weight: normal;\n  font-variant: normal;\n  text-transform: none;\n  /* Better Font Rendering =========== */\n  -webkit-font-smoothing: antialiased;\n  -moz-osx-font-smoothing: grayscale; }\n\n.braft-finder .braft-icon-code:before {\n  content: \"\\E903\"; }\n\n.braft-finder .braft-icon-pause:before {\n  content: \"\\E034\"; }\n\n.braft-finder .braft-icon-play_arrow:before {\n  content: \"\\E037\"; }\n\n.braft-finder .braft-icon-bin:before {\n  content: \"\\E9AC\"; }\n\n.braft-finder .braft-icon-replay:before {\n  content: \"\\E042\"; }\n\n.braft-finder .braft-icon-close:before {\n  content: \"\\E913\"; }\n\n.braft-finder .braft-icon-music:before {\n  content: \"\\E90E\"; }\n\n.braft-finder .braft-icon-camera:before {\n  content: \"\\E911\"; }\n\n.braft-finder .braft-icon-file-text:before {\n  content: \"\\E926\"; }\n\n.braft-finder .braft-icon-film:before {\n  content: \"\\E91C\"; }\n\n.braft-finder .braft-icon-paste:before {\n  content: \"\\E92D\"; }\n\n.braft-finder .braft-icon-spinner:before {\n  content: \"\\E980\"; }\n\n.braft-finder .braft-icon-media:before {\n  content: \"\\E90F\"; }\n\n.braft-finder .braft-icon-add:before {\n  content: \"\\E918\"; }\n\n.braft-finder .braft-icon-done:before {\n  content: \"\\E912\"; }\n\n.braft-finder .braft-icon-drop-down:before {\n  content: \"\\E906\"; }\n\n.braft-finder .braft-icon-drop-up:before {\n  content: \"\\E909\"; }\n\n.braft-finder .braft-icon-help:before {\n  content: \"\\E902\"; }\n\n.braft-finder .braft-icon-info:before {\n  content: \"\\E901\"; }\n\n.braft-finder .braft-icon-menu:before {\n  content: \"\\E908\"; }\n\n.pull-left {\n  float: left; }\n\n.pull-right {\n  float: right; }\n\n.braft-finder .bf-uploader {\n  position: relative;\n  height: 370px;\n  margin: 0; }\n  .braft-finder .bf-uploader.draging .bf-list-wrap,\n  .braft-finder .bf-uploader.draging .bf-add-external {\n    pointer-events: none; }\n  .braft-finder .bf-uploader input::-webkit-input-placeholder {\n    color: #ccc; }\n  .braft-finder .bf-uploader input::-moz-placeholder {\n    color: #ccc; }\n  .braft-finder .bf-uploader input::-ms-input-placeholder {\n    color: #ccc; }\n\n.braft-finder .bf-list-wrap {\n  position: relative;\n  height: 370px; }\n\n.braft-finder .bf-list-tools {\n  z-index: 1;\n  position: absolute;\n  top: 0;\n  right: 0;\n  left: 0;\n  height: 20px;\n  padding: 0 15px;\n  background-color: #fff; }\n  .braft-finder .bf-list-tools span {\n    height: 26px;\n    font-size: 12px;\n    line-height: 20px;\n    cursor: pointer;\n    user-select: none; }\n    .braft-finder .bf-list-tools span[disabled] {\n      opacity: .3;\n      pointer-events: none; }\n  .braft-finder .bf-list-tools .bf-select-all,\n  .braft-finder .bf-list-tools .bf-deselect-all {\n    float: left;\n    margin-right: 5px;\n    color: #bbb; }\n    .braft-finder .bf-list-tools .bf-select-all:hover,\n    .braft-finder .bf-list-tools .bf-deselect-all:hover {\n      color: #3498db; }\n  .braft-finder .bf-list-tools .bf-remove-selected {\n    float: right;\n    color: #e74c3c; }\n    .braft-finder .bf-list-tools .bf-remove-selected:hover {\n      color: #c92e1e; }\n\n.braft-finder .bf-list {\n  position: absolute;\n  z-index: 1;\n  top: 30px;\n  right: 0;\n  left: 0;\n  bottom: 0;\n  margin: 0;\n  padding: 0 10px;\n  list-style: none;\n  overflow: auto; }\n  .braft-finder .bf-list::-webkit-scrollbar {\n    width: 5px;\n    height: 5px;\n    background-color: #fff; }\n  .braft-finder .bf-list::-webkit-scrollbar-track {\n    background-color: #fff; }\n  .braft-finder .bf-list::-webkit-scrollbar-thumb {\n    background-color: rgba(0, 0, 0, 0.1); }\n\n.braft-finder .bf-item,\n.braft-finder .bf-add-item {\n  position: relative;\n  display: block;\n  float: left;\n  width: 113px;\n  height: 113px;\n  margin: 5px;\n  overflow: hidden;\n  border-radius: 3px; }\n\n.braft-finder .bf-item.uploading {\n  pointer-events: none; }\n\n.braft-finder .bf-item.error::before {\n  display: block;\n  content: \"\\E901\"; }\n\n.braft-finder .bf-item.error::after {\n  position: absolute;\n  z-index: 1;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  background-color: rgba(231, 76, 60, 0.8);\n  content: ''; }\n\n.braft-finder .bf-item.error:hover::after {\n  background-color: rgba(231, 76, 60, 0.9); }\n\n.braft-finder .bf-item.error .bf-item-uploading {\n  display: none; }\n\n.braft-finder .bf-add-item {\n  background-color: #ecedef;\n  color: #999; }\n  .braft-finder .bf-add-item:hover {\n    background-color: #e1e2e3; }\n  .braft-finder .bf-add-item i {\n    display: block;\n    width: 113px;\n    height: 113px;\n    font-size: 48px;\n    line-height: 113px;\n    text-align: center; }\n  .braft-finder .bf-add-item input {\n    position: absolute;\n    top: 0;\n    left: 0;\n    width: 100%;\n    height: 100%;\n    opacity: 0;\n    cursor: pointer; }\n\n.braft-finder .bf-item::before {\n  display: none;\n  position: absolute;\n  z-index: 2;\n  top: 0;\n  left: 0;\n  width: 113px;\n  height: 113px;\n  color: #fff;\n  font-size: 48px;\n  font-family: 'bf-icons';\n  line-height: 113px;\n  text-align: center; }\n\n.braft-finder .bf-item::after {\n  position: absolute;\n  z-index: 1;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  background-color: rgba(52, 152, 219, 0);\n  content: ''; }\n\n.braft-finder .bf-item:hover::after {\n  background-color: rgba(52, 152, 219, 0.3); }\n\n.braft-finder .bf-item:hover .bf-item-remove {\n  display: block; }\n\n.braft-finder .bf-item.active::before {\n  display: block;\n  content: \"\\E912\"; }\n\n.braft-finder .bf-item.active::after {\n  background-color: rgba(52, 152, 219, 0.6); }\n\n.braft-finder .bf-item.active:hover::after {\n  background-color: rgba(52, 152, 219, 0.8); }\n\n.braft-finder .bf-item.active:hover .bf-item-remove {\n  display: none; }\n\n.braft-finder .bf-item-uploading {\n  box-sizing: border-box;\n  position: absolute;\n  z-index: 3;\n  top: 52px;\n  left: 10px;\n  width: 93px;\n  height: 10px;\n  overflow: hidden;\n  background-color: rgba(255, 255, 255, 0.3);\n  border-radius: 5px;\n  box-shadow: 0 0 0 100px rgba(0, 0, 0, 0.5); }\n\n.braft-finder .bf-item-uploading-bar {\n  height: 10px;\n  background-color: #3498db;\n  border-radius: 0; }\n\n.braft-finder .bf-item-remove {\n  display: none;\n  position: absolute;\n  z-index: 2;\n  top: 0;\n  right: 0;\n  width: 28px;\n  height: 28px;\n  color: #fff;\n  font-size: 18px;\n  line-height: 28px;\n  text-align: center;\n  cursor: pointer; }\n  .braft-finder .bf-item-remove:hover {\n    color: #e74c3c; }\n\n.braft-finder .bf-item-title {\n  display: none;\n  box-sizing: border-box;\n  position: absolute;\n  z-index: 2;\n  bottom: 0;\n  left: 0;\n  width: 100%;\n  height: 40px;\n  padding: 0 5px;\n  overflow: hidden;\n  background-image: linear-gradient(rgba(0, 0, 0, 0), black);\n  color: #fff;\n  font-size: 12px;\n  line-height: 55px;\n  text-align: center;\n  text-overflow: ellipsis;\n  white-space: nowrap; }\n\n.braft-finder .bf-image {\n  width: 100%;\n  height: 100%;\n  background-color: #eee;\n  user-select: none; }\n  .braft-finder .bf-image img {\n    display: block;\n    width: 100%;\n    height: 100%;\n    object-fit: cover; }\n\n.braft-finder .bf-video {\n  background-color: #8e44ad; }\n\n.braft-finder .bf-audio {\n  background-color: #f39c12; }\n\n.braft-finder .bf-embed {\n  background-color: #f1c40f; }\n\n.braft-finder .bf-icon {\n  display: block;\n  width: 113px;\n  height: 113px;\n  overflow: hidden;\n  color: #fff;\n  text-align: center;\n  text-decoration: none; }\n  .braft-finder .bf-icon i, .braft-finder .bf-icon span {\n    display: block; }\n  .braft-finder .bf-icon i {\n    margin-top: 35px;\n    font-size: 24px; }\n  .braft-finder .bf-icon span {\n    width: 103px;\n    margin: 10px auto;\n    overflow: hidden;\n    font-size: 12px;\n    text-overflow: ellipsis;\n    white-space: nowrap; }\n\n.braft-finder .bf-drag-uploader {\n  box-sizing: border-box;\n  position: absolute;\n  z-index: 2;\n  top: 0;\n  right: 15px;\n  left: 15px;\n  height: 100%;\n  background-color: #fff;\n  border: dashed 1px #bbb;\n  text-align: center;\n  opacity: 0;\n  pointer-events: none; }\n  .braft-finder .bf-drag-uploader:hover, .braft-finder .bf-drag-uploader.draging {\n    background-color: #f1f2f3; }\n  .braft-finder .bf-drag-uploader.active {\n    opacity: 1;\n    pointer-events: auto; }\n\n.braft-finder .bf-uploader-buttons {\n  height: 370px;\n  margin: auto;\n  text-align: center; }\n\n.braft-finder .bf-drag-tip {\n  display: inline-block;\n  margin-top: 150px;\n  color: #ccc;\n  text-align: center;\n  font-size: 28px;\n  font-weight: normal;\n  line-height: 40px; }\n  .braft-finder .bf-drag-tip input {\n    position: absolute;\n    top: 0;\n    right: 0;\n    bottom: 0;\n    left: 0;\n    width: 100%;\n    height: 100%;\n    opacity: 0;\n    color: #fff;\n    text-indent: -100px;\n    cursor: pointer; }\n\n.braft-finder .bf-manager-footer {\n  height: 36px;\n  margin: 10px 0;\n  padding: 0 15px; }\n  .braft-finder .bf-manager-footer .button {\n    float: right;\n    height: 36px;\n    margin-left: 5px;\n    padding: 0 35px;\n    font-size: 12px;\n    font-weight: 700;\n    border: none;\n    border-radius: 3px;\n    cursor: pointer; }\n  .braft-finder .bf-manager-footer .button-insert {\n    color: #fff;\n    background-color: #3498db; }\n    .braft-finder .bf-manager-footer .button-insert:hover {\n      background-color: #2084c7; }\n    .braft-finder .bf-manager-footer .button-insert[disabled] {\n      opacity: .3;\n      pointer-events: none;\n      filter: grayscale(0.4); }\n  .braft-finder .bf-manager-footer .button-cancel {\n    color: #999;\n    background-color: #e8e8e9; }\n    .braft-finder .bf-manager-footer .button-cancel:hover {\n      background-color: #d8d8d9; }\n\n.braft-finder .bf-toggle-external-form {\n  color: #666;\n  font-size: 12px;\n  line-height: 36px; }\n  .braft-finder .bf-toggle-external-form span {\n    color: #bbb;\n    line-height: 16px;\n    cursor: pointer;\n    user-select: none; }\n    .braft-finder .bf-toggle-external-form span:hover {\n      color: #3498db; }\n    .braft-finder .bf-toggle-external-form span i {\n      position: relative;\n      top: 2px;\n      font-size: 16px; }\n\n.braft-finder .bf-add-external {\n  position: absolute;\n  z-index: 3;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  background-color: #fff; }\n  .braft-finder .bf-add-external input {\n    border: solid 1px rgba(0, 0, 0, 0.3);\n    border: solid 0.5px rgba(0, 0, 0, 0.3);\n    box-shadow: none; }\n    .braft-finder .bf-add-external input:focus {\n      border-color: #3498db;\n      box-shadow: none; }\n\n.braft-finder .bf-external-form {\n  width: 500px;\n  max-width: 90%;\n  margin: 91px auto 0 auto; }\n\n.braft-finder .bf-external-input {\n  position: relative;\n  width: 100%;\n  height: 40px;\n  margin-bottom: 10px; }\n  .braft-finder .bf-external-input div {\n    position: absolute;\n    top: 0;\n    right: 85px;\n    left: 0;\n    height: 40px; }\n  .braft-finder .bf-external-input input,\n  .braft-finder .bf-external-input textarea {\n    display: block;\n    box-sizing: border-box;\n    width: 100%;\n    height: 40px;\n    padding: 0 10px;\n    border: none;\n    border-radius: 3px;\n    outline: none;\n    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.3);\n    color: #999;\n    font-size: 18px; }\n    .braft-finder .bf-external-input input:focus,\n    .braft-finder .bf-external-input textarea:focus {\n      box-shadow: inset 0 0 0 1px #3498db; }\n  .braft-finder .bf-external-input textarea {\n    height: 100px;\n    font-size: 14px; }\n  .braft-finder .bf-external-input button {\n    position: absolute;\n    top: 0;\n    right: 0;\n    width: 80px;\n    height: 40px;\n    background-color: #3498db;\n    border: none;\n    border-radius: 3px;\n    color: #fff;\n    font-size: 14px;\n    font-weight: bold;\n    cursor: pointer; }\n    .braft-finder .bf-external-input button:disabled {\n      opacity: .3;\n      pointer-events: none;\n      filter: grayscale(0.4); }\n    .braft-finder .bf-external-input button:hover {\n      background-color: #2084c7; }\n\n.braft-finder .bf-switch-external-type {\n  overflow: hidden;\n  text-align: center; }\n  .braft-finder .bf-switch-external-type button {\n    width: auto;\n    height: 30px;\n    margin: 10px 5px;\n    padding: 0 10px;\n    background-color: #e8e9ea;\n    border: none;\n    border-radius: 3px;\n    color: #999;\n    font-size: 12px;\n    cursor: pointer; }\n    .braft-finder .bf-switch-external-type button:hover {\n      background-color: #d8d9da; }\n    .braft-finder .bf-switch-external-type button:only-child {\n      display: none; }\n  .braft-finder .bf-switch-external-type[data-type=\"IMAGE\"] [data-type=\"IMAGE\"],\n  .braft-finder .bf-switch-external-type[data-type=\"VIDEO\"] [data-type=\"VIDEO\"],\n  .braft-finder .bf-switch-external-type[data-type=\"AUDIO\"] [data-type=\"AUDIO\"],\n  .braft-finder .bf-switch-external-type[data-type=\"EMBED\"] [data-type=\"EMBED\"],\n  .braft-finder .bf-switch-external-type[data-type=\"FILE\"] [data-type=\"FILE\"] {\n    background-color: #3498db;\n    color: #fff; }\n\n.braft-finder .bf-external-tip {\n  display: block;\n  margin-top: 15px;\n  color: #ccc;\n  font-size: 12px;\n  text-align: center; }\n", ""]);

// exports


/***/ }),
/* 17 */
/***/ (function(module, exports, __webpack_require__) {


var content = __webpack_require__(16);

if(typeof content === 'string') content = [[module.i, content, '']];

var transform;



var options = {"hmr":true};

options.transform = transform;
options.insertInto = undefined;

var update = __webpack_require__(12)(content, options);

if(content.locals) module.exports = content.locals;

/***/ }),
/* 18 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

__webpack_require__(17);

var _react = __webpack_require__(2);

var _react2 = _interopRequireDefault(_react);

var _base = __webpack_require__(1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var defaultAccepts = {
  image: 'image/png,image/jpeg,image/gif,image/webp,image/apng,image/svg',
  video: 'video/mp4',
  audio: 'audio/mp3'
};

var BraftFinderView = function (_React$Component) {
  _inherits(BraftFinderView, _React$Component);

  function BraftFinderView(props) {
    _classCallCheck(this, BraftFinderView);

    var _this = _possibleConstructorReturn(this, (BraftFinderView.__proto__ || Object.getPrototypeOf(BraftFinderView)).call(this, props));

    _this.toggleSelectItem = function (event) {

      var itemId = event.currentTarget.dataset.id;
      var item = _this.controller.getMediaItem(itemId);

      if (!item) {
        return false;
      }

      if (item.selected) {

        if (!_this.props.onBeforeDeselect || _this.props.onBeforeDeselect([item], _this.controller.getItems()) !== false) {
          _this.controller.deselectMediaItem(itemId);
          _this.props.onDeselect && _this.props.onDeselect([item], _this.controller.getItems());
        }
      } else {

        if (!_this.props.onBeforeSelect || _this.props.onBeforeSelect([item], _this.controller.getItems()) !== false) {
          _this.controller.selectMediaItem(itemId);
          _this.props.onSelect && _this.props.onSelect([item], _this.controller.getItems());
        }
      }
    };

    _this.removeItem = function (event) {

      var itemId = event.currentTarget.dataset.id;
      var item = _this.controller.getMediaItem(itemId);

      if (!item) {
        return false;
      }

      if (!_this.props.onBeforeRemove || _this.props.onBeforeRemove([item], _this.controller.getItems()) !== false) {
        _this.controller.removeMediaItem(itemId);
        _this.props.onRemove && _this.props.onRemove([item], _this.controller.getItems());
      }

      event.stopPropagation();
    };

    _this.selectAllItems = function () {

      var allItems = _this.controller.getItems();

      if (!_this.props.onBeforeSelect || _this.props.onBeforeSelect(allItems, allItems) !== false) {
        _this.controller.selectAllItems();
        _this.props.onSelect && _this.props.onSelect(allItems, allItems);
      }
    };

    _this.deselectAllItems = function () {

      var allItems = _this.controller.getItems();

      if (!_this.props.onBeforeDeselect || _this.props.onBeforeDeselect(allItems, allItems) !== false) {
        _this.controller.deselectAllItems();
        _this.props.onDeselect && _this.props.onDeselect(allItems, allItems);
      }
    };

    _this.removeSelectedItems = function () {

      var selectedItems = _this.controller.getSelectedItems();

      if (!_this.props.onBeforeRemove || _this.props.onBeforeRemove(selectedItems, _this.controller.getItems()) !== false) {
        _this.controller.removeSelectedItems();
        _this.props.onRemove && _this.props.onRemove(selectedItems, _this.controller.getItems());
      }
    };

    _this.handleDragLeave = function (event) {
      event.preventDefault();
      _this.dragCounter--;
      _this.dragCounter === 0 && _this.setState({
        draging: false
      });
    };

    _this.handleDragDrop = function (event) {
      event.preventDefault();
      _this.dragCounter = 0;
      _this.setState({ draging: false });
      _this.reslovePickedFiles(event);
    };

    _this.handleDragEnter = function (event) {
      event.preventDefault();
      _this.dragCounter++;
      _this.setState({ draging: true });
    };

    _this.reslovePickedFiles = function (event) {

      event.persist();

      var _ref = event.type === 'drop' ? event.dataTransfer : event.target,
          files = _ref.files;

      if (_this.props.onFileSelect) {
        var result = _this.props.onFileSelect(files);
        if (result === false) {
          return false;
        } else if (result instanceof FileList || result instanceof Array) {
          files = result;
        }
      }

      var accepts = _extends({}, defaultAccepts, _this.props.accepts);

      _this.controller.resolveFiles({
        files: files,
        onItemReady: function onItemReady(_ref2) {
          var id = _ref2.id;
          return _this.controller.selectMediaItem(id);
        },
        onAllReady: function onAllReady() {
          return event.target.value = null;
        }
      }, 0, accepts);
    };

    _this.inputExternal = function (event) {
      _this.setState({
        external: _extends({}, _this.state.external, {
          url: event.target.value
        })
      });
    };

    _this.switchExternalType = function (event) {
      _this.setState({
        external: _extends({}, _this.state.external, { type: event.target.dataset.type })
      });
    };

    _this.confirmAddExternal = function (event) {

      if (event.target.nodeName.toLowerCase() === 'button' || event.keyCode === 13) {
        var _this$state$external = _this.state.external,
            url = _this$state$external.url,
            type = _this$state$external.type;

        url = url.split('|');
        var name = url.length > 1 ? url[0] : _this.props.language.unnamedItem;
        url = url.length > 1 ? url[1] : url[0];
        var thumbnail = type === 'IMAGE' ? url : null;

        _this.controller.addItems([{
          thumbnail: thumbnail, url: url, name: name, type: type,
          id: new Date().getTime() + '_' + (0, _base.UniqueIndex)(),
          uploading: false,
          uploadProgress: 1,
          selected: true
        }]);

        _this.setState({
          showExternalForm: false,
          external: {
            url: '',
            type: 'IMAGE'
          }
        });
      }
    };

    _this.toggleExternalForm = function () {
      _this.setState({
        showExternalForm: !_this.state.showExternalForm
      });
    };

    _this.cancelInsert = function () {
      _this.props.onCancel && _this.props.onCancel();
    };

    _this.confirmInsert = function () {

      var selectedItems = _this.controller.getSelectedItems();

      if (_this.props.onBeforeInsert) {

        var filteredItems = _this.props.onBeforeInsert(selectedItems);

        if (filteredItems && filteredItems instanceof Array) {
          _this.controller.deselectAllItems();
          _this.props.onInsert && _this.props.onInsert(filteredItems);
        } else if (filteredItems !== false) {
          _this.controller.deselectAllItems();
          _this.props.onInsert && _this.props.onInsert(selectedItems);
        }
      } else {
        _this.controller.deselectAllItems();
        _this.props.onInsert && _this.props.onInsert(selectedItems);
      }
    };

    _this.dragCounter = 0;
    _this.controller = _this.props.controller;
    var initialItems = _this.controller.getItems();

    _this.state = {
      draging: false,
      error: false,
      confirmable: initialItems.find(function (_ref3) {
        var selected = _ref3.selected;
        return selected;
      }),
      external: {
        url: '',
        type: 'IMAGE'
      },
      fileAccept: '',
      showExternalForm: false,
      allowExternal: false,
      items: initialItems
    };

    _this.changeListenerId = _this.controller.onChange(function (items) {
      _this.setState({ items: items, confirmable: items.find(function (_ref4) {
          var selected = _ref4.selected;
          return selected;
        }) });
      _this.props.onChange && _this.props.onChange(items);
    });

    return _this;
  }

  _createClass(BraftFinderView, [{
    key: 'mapPropsToState',
    value: function mapPropsToState(props) {
      var accepts = props.accepts,
          externals = props.externals;


      accepts = _extends({}, defaultAccepts, accepts);

      var fileAccept = !accepts ? [defaultAccepts.image, defaultAccepts.video, defaultAccepts.audio].join(',') : [accepts.image, accepts.video, accepts.audio].filter(function (item) {
        return item;
      }).join(',');

      var external = {
        url: '',
        type: externals.image ? 'IMAGE' : externals.audio ? 'AUDIO' : externals.video ? 'VIDEO' : externals.embed ? 'EMBED' : ''
      };

      return {
        fileAccept: fileAccept,
        external: external,
        allowExternal: externals && (externals.image || externals.audio || externals.video || externals.embed)
      };
    }
  }, {
    key: 'componentDidMount',
    value: function componentDidMount() {
      this.setState(this.mapPropsToState(this.props));
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      this.setState(this.mapPropsToState(nextProps));
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.controller.offChange(this.changeListenerId);
    }
  }, {
    key: 'render',
    value: function render() {
      var _props = this.props,
          language = _props.language,
          externals = _props.externals;
      var _state = this.state,
          items = _state.items,
          draging = _state.draging,
          confirmable = _state.confirmable,
          fileAccept = _state.fileAccept,
          external = _state.external,
          showExternalForm = _state.showExternalForm,
          allowExternal = _state.allowExternal;


      return _react2.default.createElement(
        'div',
        { className: 'braft-finder' },
        _react2.default.createElement(
          'div',
          {
            onDragEnter: this.handleDragEnter,
            onDragOver: this.handleDragEnter,
            onDragLeave: this.handleDragLeave,
            onDrop: this.handleDragDrop,
            className: 'bf-uploader'
          },
          _react2.default.createElement(
            'div',
            { className: "bf-drag-uploader " + (draging || !items.length ? 'active ' : ' ') + (draging ? 'draging' : '') },
            _react2.default.createElement(
              'span',
              { className: 'bf-drag-tip' },
              _react2.default.createElement('input', { accept: fileAccept, onChange: this.reslovePickedFiles, multiple: true, type: 'file' }),
              draging ? language.dropTip : language.dragTip
            )
          ),
          items.length ? _react2.default.createElement(
            'div',
            { className: 'bf-list-wrap' },
            _react2.default.createElement(
              'div',
              { className: 'bf-list-tools' },
              _react2.default.createElement(
                'span',
                { onClick: this.selectAllItems, className: 'bf-select-all' },
                _react2.default.createElement('i', { className: 'braft-icon-done' }),
                ' ',
                language.selectAll
              ),
              _react2.default.createElement(
                'span',
                { onClick: this.deselectAllItems, disabled: !confirmable, className: 'bf-deselect-all' },
                _react2.default.createElement('i', { className: 'braft-icon-close' }),
                ' ',
                language.deselect
              ),
              _react2.default.createElement(
                'span',
                { onClick: this.removeSelectedItems, disabled: !confirmable, className: 'bf-remove-selected' },
                _react2.default.createElement('i', { className: 'braft-icon-bin' }),
                ' ',
                language.removeSelected
              )
            ),
            this.buildItemList()
          ) : null,
          showExternalForm && allowExternal ? _react2.default.createElement(
            'div',
            { className: 'bf-add-external' },
            _react2.default.createElement(
              'div',
              { className: 'bf-external-form' },
              _react2.default.createElement(
                'div',
                { className: 'bf-external-input' },
                _react2.default.createElement(
                  'div',
                  null,
                  _react2.default.createElement('input', { onKeyDown: this.confirmAddExternal, value: external.url, onChange: this.inputExternal, placeholder: language.externalInputPlaceHolder })
                ),
                _react2.default.createElement(
                  'button',
                  { type: 'button', onClick: this.confirmAddExternal, disabled: !external.url.trim().length },
                  language.confirm
                )
              ),
              _react2.default.createElement(
                'div',
                { 'data-type': external.type, className: 'bf-switch-external-type' },
                externals.image ? _react2.default.createElement(
                  'button',
                  { type: 'button', onClick: this.switchExternalType, 'data-type': 'IMAGE' },
                  language.image
                ) : null,
                externals.audio ? _react2.default.createElement(
                  'button',
                  { type: 'button', onClick: this.switchExternalType, 'data-type': 'AUDIO' },
                  language.audio
                ) : null,
                externals.video ? _react2.default.createElement(
                  'button',
                  { type: 'button', onClick: this.switchExternalType, 'data-type': 'VIDEO' },
                  language.video
                ) : null,
                externals.embed ? _react2.default.createElement(
                  'button',
                  { type: 'button', onClick: this.switchExternalType, 'data-type': 'EMBED' },
                  language.embed
                ) : null
              ),
              _react2.default.createElement(
                'span',
                { className: 'bf-external-tip' },
                language.externalInputTip
              )
            )
          ) : null
        ),
        _react2.default.createElement(
          'footer',
          { className: 'bf-manager-footer' },
          _react2.default.createElement(
            'div',
            { className: 'pull-left' },
            allowExternal ? _react2.default.createElement(
              'span',
              {
                onClick: this.toggleExternalForm,
                className: 'bf-toggle-external-form'
              },
              showExternalForm ? _react2.default.createElement(
                'span',
                { className: 'bf-bottom-text' },
                _react2.default.createElement('i', { className: 'braft-icon-add' }),
                ' ',
                language.addLocalFile
              ) : _react2.default.createElement(
                'span',
                { className: 'bf-bottom-text' },
                _react2.default.createElement('i', { className: 'braft-icon-add' }),
                ' ',
                language.addExternalSource
              )
            ) : null
          ),
          _react2.default.createElement(
            'div',
            { className: 'pull-right' },
            _react2.default.createElement(
              'button',
              { onClick: this.confirmInsert, className: 'button button-insert', disabled: !confirmable },
              language.insert
            ),
            _react2.default.createElement(
              'button',
              { onClick: this.cancelInsert, className: 'button button-cancel' },
              language.cancel
            )
          )
        )
      );
    }
  }, {
    key: 'buildItemList',
    value: function buildItemList() {
      var _this2 = this;

      return _react2.default.createElement(
        'ul',
        { className: 'bf-list' },
        _react2.default.createElement(
          'li',
          { className: 'bf-add-item' },
          _react2.default.createElement('i', { className: 'braft-icon-add' }),
          _react2.default.createElement('input', { accept: this.state.fileAccept, onChange: this.reslovePickedFiles, multiple: true, type: 'file' })
        ),
        this.state.items.map(function (item, index) {

          var previewerComponents = null;
          var progressMarker = item.uploading && !_this2.props.hideProgress ? _react2.default.createElement(
            'div',
            { className: 'bf-item-uploading' },
            _react2.default.createElement('div', { className: 'bf-item-uploading-bar', style: { width: item.uploadProgress / 1 + '%' } })
          ) : '';

          switch (item.type) {
            case 'IMAGE':
              previewerComponents = _react2.default.createElement(
                'div',
                { className: 'bf-image' },
                progressMarker,
                _react2.default.createElement('img', { src: item.thumbnail || item.url })
              );
              break;
            case 'VIDEO':
              previewerComponents = _react2.default.createElement(
                'div',
                { className: 'bf-icon bf-video', title: item.url },
                progressMarker,
                _react2.default.createElement('i', { className: 'braft-icon-film' }),
                _react2.default.createElement(
                  'span',
                  null,
                  item.name || item.url
                )
              );
              break;
            case 'AUDIO':
              previewerComponents = _react2.default.createElement(
                'div',
                { className: 'bf-icon bf-audio', title: item.url },
                progressMarker,
                _react2.default.createElement('i', { className: 'braft-icon-music' }),
                _react2.default.createElement(
                  'span',
                  null,
                  item.name || item.url
                )
              );
              break;
            case 'EMBED':
              previewerComponents = _react2.default.createElement(
                'div',
                { className: 'bf-icon bf-embed', title: item.url },
                progressMarker,
                _react2.default.createElement('i', { className: 'braft-icon-code' }),
                _react2.default.createElement(
                  'span',
                  null,
                  item.name || _this2.props.language.embed
                )
              );
              break;
            default:
              previewerComponents = _react2.default.createElement(
                'a',
                { className: 'bf-icon bf-file', title: item.url, href: item.url },
                progressMarker,
                _react2.default.createElement('i', { className: 'braft-icon-file-text' }),
                _react2.default.createElement(
                  'span',
                  null,
                  item.name || item.url
                )
              );
              break;
          }

          var className = ['bf-item'];
          item.selected && className.push('active');
          item.uploading && className.push('uploading');
          item.error && className.push('error');

          return _react2.default.createElement(
            'li',
            {
              key: index,
              title: item.name,
              'data-id': item.id,
              className: className.join(' '),
              onClick: _this2.toggleSelectItem
            },
            previewerComponents,
            _react2.default.createElement('span', { 'data-id': item.id, onClick: _this2.removeItem, className: 'bf-item-remove braft-icon-close' }),
            _react2.default.createElement(
              'span',
              { className: 'bf-item-title' },
              item.name
            )
          );
        })
      );
    }
  }]);

  return BraftFinderView;
}(_react2.default.Component);

BraftFinderView.defaultProps = {
  accepts: defaultAccepts,
  externals: {
    image: true,
    video: true,
    audio: true,
    embed: true
  }
};
exports.default = BraftFinderView;

/***/ }),
/* 19 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _base = __webpack_require__(1);

var _image = __webpack_require__(0);

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var defaultValidator = function defaultValidator() {
  return true;
};

var BraftFinderController = function BraftFinderController() {
  var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

  _classCallCheck(this, BraftFinderController);

  _initialiseProps.call(this);

  this.items = props.items || [];
  this.uploadFn = props.uploader;
  this.validateFn = props.validator || defaultValidator;

  this.changeListeners = [];
}

// resolvePastedFiles ({ clipboardData }, callback) {

//   if (clipboardData && clipboardData.items && clipboardData.items[0].type.indexOf('image') > -1) {
//     this.uploadImage(clipboardData.items[0].getAsFile(), callback)
//   }

// }

;

var _initialiseProps = function _initialiseProps() {
  var _this = this;

  this.setProps = function () {
    var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};


    _this.items = props.items || _this.items || [];
    _this.uploadFn = props.uploader;
    _this.validateFn = props.validator || defaultValidator;
  };

  this.getMediaItem = function (id) {
    return _this.items.find(function (item) {
      return item.id === id;
    });
  };

  this.getSelectedItems = function () {
    return _this.items.filter(function (item) {
      return item.selected;
    });
  };

  this.getItems = function () {
    return _this.items;
  };

  this.setItems = function (items) {
    _this.items = items.map(function (item) {
      return _extends({}, item, { id: item.id.toString() });
    }) || [];
    _this.applyChange();
    _this.uploadItems();
  };

  this.addMediaItem = function (item) {
    _this.addItems([item]);
  };

  this.addItems = function (items) {
    _this.items = [].concat(_toConsumableArray(_this.items), _toConsumableArray(items.map(function (item) {
      return _extends({}, item, { id: item.id.toString() });
    })));
    _this.applyChange();
    _this.uploadItems();
  };

  this.selectMediaItem = function (id) {
    var item = _this.getMediaItem(id);
    if (item && (item.uploading || item.error)) {
      return false;
    }
    _this.setMediaItemState(id, {
      selected: true
    });
  };

  this.selectAllItems = function () {
    _this.items = _this.items.filter(function (item) {
      return !item.error && !item.uploading;
    }).map(function (item) {
      return _extends({}, item, { selected: true });
    });
    _this.applyChange();
  };

  this.deselectMediaItem = function (id) {
    _this.setMediaItemState(id, {
      selected: false
    });
  };

  this.deselectAllItems = function () {
    _this.items = _this.items.map(function (item) {
      return _extends({}, item, { selected: false });
    });
    _this.applyChange();
  };

  this.removeMediaItem = function (id) {
    _this.items = _this.items.filter(function (item) {
      return item.id !== id;
    });
    _this.applyChange();
  };

  this.removeItems = function () {
    var ids = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];

    _this.items = _this.items.filter(function (item) {
      return !ids.includes(item.id);
    });
    _this.applyChange();
  };

  this.removeSelectedItems = function () {
    _this.items = _this.items.filter(function (item) {
      return !item.selected;
    });
    _this.applyChange();
  };

  this.removeErrorItems = function () {
    _this.items = _this.items.filter(function (item) {
      return !item.error;
    });
    _this.applyChange();
  };

  this.removeAllItems = function () {
    _this.items = [];
    _this.applyChange();
  };

  this.setMediaItemState = function (id, state) {
    _this.items = _this.items.map(function (item) {
      return item.id === id ? _extends({}, item, state) : item;
    });
    _this.applyChange();
  };

  this.reuploadErrorItems = function () {
    _this.uploadItems(true);
  };

  this.uploadItems = function () {
    var ignoreError = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;


    _this.items.forEach(function (item, index) {

      if (item.uploading || item.url) {
        return false;
      }

      if (!ignoreError && item.error) {
        return false;
      }

      if (item.type === 'IMAGE') {
        _this.createThumbnail(item);
        _this.uploadFn = _this.uploadFn || _this.createInlineImage;
      } else if (!_this.uploadFn) {
        _this.setMediaItemState(item.id, { error: 1 });
        return false;
      }

      _this.setMediaItemState(item.id, {
        uploading: true,
        uploadProgress: 0,
        error: 0
      });

      _this.uploadFn({
        id: item.id,
        file: item.file,
        success: function success(res) {
          _this.handleUploadSuccess(item.id, res);
        },
        progress: function progress(_progress) {
          _this.setMediaItemState(item.id, {
            uploading: true,
            uploadProgress: _progress
          });
        },
        error: function error(_error) {
          _this.setMediaItemState(item.id, {
            uploading: false,
            error: 2
          });
        }
      });
    });
  };

  this.createThumbnail = function (_ref) {
    var id = _ref.id,
        file = _ref.file;


    (0, _image.compressImage)(URL.createObjectURL(file), 226, 226).then(function (result) {
      _this.setMediaItemState(id, { thumbnail: result.url });
    });
  };

  this.createInlineImage = function (param) {

    (0, _image.compressImage)(URL.createObjectURL(param.file), 1280, 800).then(function (result) {
      param.success({ url: result.url });
    }).catch(function (error) {
      param.error(error);
    });
  };

  this.handleUploadSuccess = function (id, data) {

    _this.setMediaItemState(id, _extends({}, data, {
      file: null,
      uploadProgress: 1,
      uploading: false,
      selected: false
    }));

    var item = _this.getMediaItem(data.id || id);
    item.onReady && item.onReady(item);
  };

  this.applyChange = function () {
    _this.changeListeners.forEach(function (_ref2) {
      var callback = _ref2.callback;
      return callback(_this.items);
    });
  };

  this.uploadImage = function (file, callback) {

    var fileId = new Date().getTime() + '_' + (0, _base.UniqueIndex)();

    _this.addMediaItem({
      type: 'IMAGE',
      id: fileId,
      file: file,
      name: fileId,
      size: file.size,
      uploadProgress: 0,
      uploading: false,
      selected: false,
      error: 0,
      onReady: callback
    });
  };

  this.uploadImageRecursively = function (files, callback) {
    var index = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;


    if (files[index] && files[index].type.indexOf('image') > -1) {
      _this.uploadImage(files[index], function (image) {
        callback && callback(image);
        index < files.length - 1 && _this.uploadImageRecursively(files, callback, index + 1);
      });
    } else {
      index < files.length - 1 && _this.uploadImageRecursively(files, callback, index + 1);
    }
  };

  this.addResolvedFiles = function (param, index, accepts) {

    var data = {
      id: new Date().getTime() + '_' + (0, _base.UniqueIndex)(),
      file: param.files[index],
      name: param.files[index].name,
      size: param.files[index].size,
      uploadProgress: 0,
      uploading: false,
      selected: false,
      error: 0,
      onReady: function onReady(item) {
        param.onItemReady && param.onItemReady(item);
      }
    };

    if (param.files[index].type.indexOf('image/') === 0 && accepts.image) {
      data.type = 'IMAGE';
      _this.addMediaItem(data);
    } else if (param.files[index].type.indexOf('video/') === 0 && accepts.video) {
      data.type = 'VIDEO';
      _this.addMediaItem(data);
    } else if (param.files[index].type.indexOf('audio/') === 0 && accepts.audio) {
      data.type = 'AUDIO';
      _this.addMediaItem(data);
    }

    setTimeout(function () {
      _this.resolveFiles(param, index + 1, accepts);
    }, 60);
  };

  this.resolveFiles = function (param, index, accepts) {

    if (index < param.files.length) {

      var validateResult = _this.validateFn(param.files[index]);

      if (validateResult instanceof Promise) {
        validateResult.then(function () {
          _this.addResolvedFiles(param, index, accepts);
        });
      } else if (validateResult) {
        _this.addResolvedFiles(param, index, accepts);
      }
    } else {
      param.onAllReady && param.onAllReady();
    }
  };

  this.onChange = function (callback) {

    var listenerId = (0, _base.UniqueIndex)();

    _this.changeListeners.push({
      id: listenerId,
      callback: callback
    });

    return listenerId;
  };

  this.offChange = function (listenerId) {
    _this.changeListeners = _this.changeListeners.filter(function (_ref3) {
      var id = _ref3.id;
      return id !== listenerId;
    });
  };
};

exports.default = BraftFinderController;

/***/ }),
/* 20 */
/***/ (function(module, exports, __webpack_require__) {


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ImageUtils = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _react = __webpack_require__(2);

var _react2 = _interopRequireDefault(_react);

var _controller = __webpack_require__(19);

var _controller2 = _interopRequireDefault(_controller);

var _view = __webpack_require__(18);

var _view2 = _interopRequireDefault(_view);

var _languages = __webpack_require__(10);

var _languages2 = _interopRequireDefault(_languages);

var _image = __webpack_require__(0);

var ImageUtils = _interopRequireWildcard(_image);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var BraftFinder = function (_FinderController) {
  _inherits(BraftFinder, _FinderController);

  function BraftFinder(props) {
    _classCallCheck(this, BraftFinder);

    var _this = _possibleConstructorReturn(this, (BraftFinder.__proto__ || Object.getPrototypeOf(BraftFinder)).call(this, props));

    _initialiseProps.call(_this);

    _this.superProps = props;
    return _this;
  }

  return BraftFinder;
}(_controller2.default);

var _initialiseProps = function _initialiseProps() {
  var _this2 = this;

  this.ReactComponent = function () {
    var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};


    var componentProps = _extends({}, _this2.superProps, props);

    var language = (typeof componentProps.language === 'function' ? componentProps.language(_languages2.default, 'braft-finder') : _languages2.default[componentProps.language]) || _languages2.default['zh'];

    return _react2.default.createElement(_view2.default, _extends({}, componentProps, {
      language: language,
      controller: _this2
    }));
  };
};

exports.default = BraftFinder;
exports.ImageUtils = ImageUtils;

/***/ })
/******/ ]);
});
});

unwrapExports(dist$2);

var dist$3 = createCommonjsModule(function (module, exports) {
(function webpackUniversalModuleDefinition(root, factory) {
	module.exports = factory(React, dist$1, Draft, immutable$1, dist, reactDom, dist$2, draftjsUtils);
})(window, function(__WEBPACK_EXTERNAL_MODULE__0__, __WEBPACK_EXTERNAL_MODULE__3__, __WEBPACK_EXTERNAL_MODULE__6__, __WEBPACK_EXTERNAL_MODULE__13__, __WEBPACK_EXTERNAL_MODULE__14__, __WEBPACK_EXTERNAL_MODULE__16__, __WEBPACK_EXTERNAL_MODULE__17__, __WEBPACK_EXTERNAL_MODULE__23__) {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__webpack_require__.d = function(exports, name, getter) {
/******/ 		if(!__webpack_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ 		}
/******/ 	};
/******/
/******/ 	// define __esModule on exports
/******/ 	__webpack_require__.r = function(exports) {
/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ 		}
/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
/******/ 	};
/******/
/******/ 	// create a fake namespace object
/******/ 	// mode & 1: value is a module id, require it
/******/ 	// mode & 2: merge all properties of value into the ns
/******/ 	// mode & 4: return value when already ns object
/******/ 	// mode & 8|1: behave like require
/******/ 	__webpack_require__.t = function(value, mode) {
/******/ 		if(mode & 1) value = __webpack_require__(value);
/******/ 		if(mode & 8) return value;
/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ 		var ns = Object.create(null);
/******/ 		__webpack_require__.r(ns);
/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ 		return ns;
/******/ 	};
/******/
/******/ 	// getDefaultExport function for compatibility with non-harmony modules
/******/ 	__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;
/******/ 	};
/******/
/******/ 	// Object.prototype.hasOwnProperty.call
/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "/";
/******/
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(__webpack_require__.s = 39);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__0__;

/***/ }),
/* 1 */
/***/ (function(module, exports) {

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

module.exports = _assertThisInitialized;

/***/ }),
/* 2 */
/***/ (function(module, exports) {

function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}

module.exports = _defineProperty;

/***/ }),
/* 3 */
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__3__;

/***/ }),
/* 4 */
/***/ (function(module, exports) {

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

module.exports = _classCallCheck;

/***/ }),
/* 5 */
/***/ (function(module, exports, __webpack_require__) {

var defineProperty = __webpack_require__(2);

function _objectSpread(target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i] != null ? arguments[i] : {};
    var ownKeys = Object.keys(source);

    if (typeof Object.getOwnPropertySymbols === 'function') {
      ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
        return Object.getOwnPropertyDescriptor(source, sym).enumerable;
      }));
    }

    ownKeys.forEach(function (key) {
      defineProperty(target, key, source[key]);
    });
  }

  return target;
}

module.exports = _objectSpread;

/***/ }),
/* 6 */
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__6__;

/***/ }),
/* 7 */
/***/ (function(module, exports) {

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

module.exports = _createClass;

/***/ }),
/* 8 */
/***/ (function(module, exports, __webpack_require__) {

var _typeof = __webpack_require__(15);

var assertThisInitialized = __webpack_require__(1);

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }

  return assertThisInitialized(self);
}

module.exports = _possibleConstructorReturn;

/***/ }),
/* 9 */
/***/ (function(module, exports) {

function _getPrototypeOf(o) {
  module.exports = _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

module.exports = _getPrototypeOf;

/***/ }),
/* 10 */
/***/ (function(module, exports, __webpack_require__) {

var setPrototypeOf = __webpack_require__(26);

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  if (superClass) setPrototypeOf(subClass, superClass);
}

module.exports = _inherits;

/***/ }),
/* 11 */
/***/ (function(module, exports) {

function _extends() {
  module.exports = _extends = Object.assign || function (target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i];

      for (var key in source) {
        if (Object.prototype.hasOwnProperty.call(source, key)) {
          target[key] = source[key];
        }
      }
    }

    return target;
  };

  return _extends.apply(this, arguments);
}

module.exports = _extends;

/***/ }),
/* 12 */
/***/ (function(module, exports, __webpack_require__) {

var arrayWithoutHoles = __webpack_require__(27);

var iterableToArray = __webpack_require__(28);

var nonIterableSpread = __webpack_require__(29);

function _toConsumableArray(arr) {
  return arrayWithoutHoles(arr) || iterableToArray(arr) || nonIterableSpread();
}

module.exports = _toConsumableArray;

/***/ }),
/* 13 */
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__13__;

/***/ }),
/* 14 */
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__14__;

/***/ }),
/* 15 */
/***/ (function(module, exports) {

function _typeof2(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof2 = function _typeof2(obj) { return typeof obj; }; } else { _typeof2 = function _typeof2(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof2(obj); }

function _typeof(obj) {
  if (typeof Symbol === "function" && _typeof2(Symbol.iterator) === "symbol") {
    module.exports = _typeof = function _typeof(obj) {
      return _typeof2(obj);
    };
  } else {
    module.exports = _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : _typeof2(obj);
    };
  }

  return _typeof(obj);
}

module.exports = _typeof;

/***/ }),
/* 16 */
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__16__;

/***/ }),
/* 17 */
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__17__;

/***/ }),
/* 18 */
/***/ (function(module, exports, __webpack_require__) {

var Immutable = __webpack_require__(13);

var KEY_SEPARATOR = '-';

function MultiDecorator(decorators) {
    this.decorators = Immutable.List(decorators);
}

/**
    Return list of decoration IDs per character

    @param {ContentBlock}
    @return {List<String>}
*/
MultiDecorator.prototype.getDecorations = function(block) {
    var decorations = Array(block.getText().length).fill(null);

    this.decorators.forEach(function(decorator, i) {
        var _decorations = decorator.getDecorations(block);

        _decorations.forEach(function(key, offset) {
            if (!key) {
                return;
            }

            key = i + KEY_SEPARATOR + key;

            decorations[offset] = key;
        });
    });

    return Immutable.List(decorations);
};

/**
    Return component to render a decoration

    @param {String}
    @return {Function}
*/
MultiDecorator.prototype.getComponentForKey = function(key) {
    var decorator = this.getDecoratorForKey(key);
    return decorator.getComponentForKey(
        this.getInnerKey(key)
    );
};

/**
    Return props to render a decoration

    @param {String}
    @return {Object}
*/
MultiDecorator.prototype.getPropsForKey = function(key) {
    var decorator = this.getDecoratorForKey(key);
    return decorator.getPropsForKey(
        this.getInnerKey(key)
    );
};

/**
    Return a decorator for a specific key

    @param {String}
    @return {Decorator}
*/
MultiDecorator.prototype.getDecoratorForKey = function(key) {
    var parts = key.split(KEY_SEPARATOR);
    var index = Number(parts[0]);

    return this.decorators.get(index);
};

/**
    Return inner key for a decorator

    @param {String}
    @return {String}
*/
MultiDecorator.prototype.getInnerKey = function(key) {
    var parts = key.split(KEY_SEPARATOR);
    return parts.slice(1).join(KEY_SEPARATOR);
};

module.exports = MultiDecorator;


/***/ }),
/* 19 */
/***/ (function(module, exports, __webpack_require__) {
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule CharacterMetadata
 * @format
 * 
 */



function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var _require = __webpack_require__(13),
    Map = _require.Map,
    OrderedSet = _require.OrderedSet,
    Record = _require.Record;

// Immutable.map is typed such that the value for every key in the map
// must be the same type


var EMPTY_SET = OrderedSet();

var defaultRecord = {
  style: EMPTY_SET,
  entity: null
};

var CharacterMetadataRecord = Record(defaultRecord);

var CharacterMetadata = function (_CharacterMetadataRec) {
  _inherits(CharacterMetadata, _CharacterMetadataRec);

  function CharacterMetadata() {
    _classCallCheck(this, CharacterMetadata);

    return _possibleConstructorReturn(this, _CharacterMetadataRec.apply(this, arguments));
  }

  CharacterMetadata.prototype.getStyle = function getStyle() {
    return this.get('style');
  };

  CharacterMetadata.prototype.getEntity = function getEntity() {
    return this.get('entity');
  };

  CharacterMetadata.prototype.hasStyle = function hasStyle(style) {
    return this.getStyle().includes(style);
  };

  CharacterMetadata.applyStyle = function applyStyle(record, style) {
    var withStyle = record.set('style', record.getStyle().add(style));
    return CharacterMetadata.create(withStyle);
  };

  CharacterMetadata.removeStyle = function removeStyle(record, style) {
    var withoutStyle = record.set('style', record.getStyle().remove(style));
    return CharacterMetadata.create(withoutStyle);
  };

  CharacterMetadata.applyEntity = function applyEntity(record, entityKey) {
    var withEntity = record.getEntity() === entityKey ? record : record.set('entity', entityKey);
    return CharacterMetadata.create(withEntity);
  };

  /**
   * Use this function instead of the `CharacterMetadata` constructor.
   * Since most content generally uses only a very small number of
   * style/entity permutations, we can reuse these objects as often as
   * possible.
   */


  CharacterMetadata.create = function create(config) {
    if (!config) {
      return EMPTY;
    }

    var defaultConfig = {
      style: EMPTY_SET,
      entity: null
    };

    // Fill in unspecified properties, if necessary.
    var configMap = Map(defaultConfig).merge(config);

    var existing = pool.get(configMap);
    if (existing) {
      return existing;
    }

    var newCharacter = new CharacterMetadata(configMap);
    pool = pool.set(configMap, newCharacter);
    return newCharacter;
  };

  return CharacterMetadata;
}(CharacterMetadataRecord);

var EMPTY = new CharacterMetadata();
var pool = Map([[Map(defaultRecord), EMPTY]]);

CharacterMetadata.EMPTY = EMPTY;

module.exports = CharacterMetadata;

/***/ }),
/* 20 */
/***/ (function(module, exports, __webpack_require__) {
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule findRangesImmutable
 * @format
 * 
 */



/**
 * Search through an array to find contiguous stretches of elements that
 * match a specified filter function.
 *
 * When ranges are found, execute a specified `found` function to supply
 * the values to the caller.
 */
function findRangesImmutable(haystack, areEqualFn, filterFn, foundFn) {
  if (!haystack.size) {
    return;
  }

  var cursor = 0;

  haystack.reduce(function (value, nextValue, nextIndex) {
    if (!areEqualFn(value, nextValue)) {
      if (filterFn(value)) {
        foundFn(cursor, nextIndex);
      }
      cursor = nextIndex;
    }
    return nextValue;
  });

  filterFn(haystack.last()) && foundFn(cursor, haystack.count());
}

module.exports = findRangesImmutable;

/***/ }),
/* 21 */
/***/ (function(module, exports, __webpack_require__) {

var objectWithoutPropertiesLoose = __webpack_require__(25);

function _objectWithoutProperties(source, excluded) {
  if (source == null) return {};
  var target = objectWithoutPropertiesLoose(source, excluded);
  var key, i;

  if (Object.getOwnPropertySymbols) {
    var sourceSymbolKeys = Object.getOwnPropertySymbols(source);

    for (i = 0; i < sourceSymbolKeys.length; i++) {
      key = sourceSymbolKeys[i];
      if (excluded.indexOf(key) >= 0) continue;
      if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
      target[key] = source[key];
    }
  }

  return target;
}

module.exports = _objectWithoutProperties;

/***/ }),
/* 22 */
/***/ (function(module, exports, __webpack_require__) {
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getFragmentFromSelection
 * @format
 * 
 */



var getContentStateFragment = __webpack_require__(30);

function getFragmentFromSelection(editorState) {
  var selectionState = editorState.getSelection();

  if (selectionState.isCollapsed()) {
    return null;
  }

  return getContentStateFragment(editorState.getCurrentContent(), selectionState);
}

module.exports = getFragmentFromSelection;

/***/ }),
/* 23 */
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__23__;

/***/ }),
/* 24 */
/***/ (function(module, exports, __webpack_require__) {

var arrayWithHoles = __webpack_require__(36);

var iterableToArrayLimit = __webpack_require__(37);

var nonIterableRest = __webpack_require__(38);

function _slicedToArray(arr, i) {
  return arrayWithHoles(arr) || iterableToArrayLimit(arr, i) || nonIterableRest();
}

module.exports = _slicedToArray;

/***/ }),
/* 25 */
/***/ (function(module, exports) {

function _objectWithoutPropertiesLoose(source, excluded) {
  if (source == null) return {};
  var target = {};
  var sourceKeys = Object.keys(source);
  var key, i;

  for (i = 0; i < sourceKeys.length; i++) {
    key = sourceKeys[i];
    if (excluded.indexOf(key) >= 0) continue;
    target[key] = source[key];
  }

  return target;
}

module.exports = _objectWithoutPropertiesLoose;

/***/ }),
/* 26 */
/***/ (function(module, exports) {

function _setPrototypeOf(o, p) {
  module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}

module.exports = _setPrototypeOf;

/***/ }),
/* 27 */
/***/ (function(module, exports) {

function _arrayWithoutHoles(arr) {
  if (Array.isArray(arr)) {
    for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) {
      arr2[i] = arr[i];
    }

    return arr2;
  }
}

module.exports = _arrayWithoutHoles;

/***/ }),
/* 28 */
/***/ (function(module, exports) {

function _iterableToArray(iter) {
  if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
}

module.exports = _iterableToArray;

/***/ }),
/* 29 */
/***/ (function(module, exports) {

function _nonIterableSpread() {
  throw new TypeError("Invalid attempt to spread non-iterable instance");
}

module.exports = _nonIterableSpread;

/***/ }),
/* 30 */
/***/ (function(module, exports, __webpack_require__) {
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule getContentStateFragment
 * @format
 * 
 */



var randomizeBlockMapKeys = __webpack_require__(31);
var removeEntitiesAtEdges = __webpack_require__(34);

var getContentStateFragment = function getContentStateFragment(contentState, selectionState) {
  var startKey = selectionState.getStartKey();
  var startOffset = selectionState.getStartOffset();
  var endKey = selectionState.getEndKey();
  var endOffset = selectionState.getEndOffset();

  // Edge entities should be stripped to ensure that we don't preserve
  // invalid partial entities when the fragment is reused. We do, however,
  // preserve entities that are entirely within the selection range.
  var contentWithoutEdgeEntities = removeEntitiesAtEdges(contentState, selectionState);

  var blockMap = contentWithoutEdgeEntities.getBlockMap();
  var blockKeys = blockMap.keySeq();
  var startIndex = blockKeys.indexOf(startKey);
  var endIndex = blockKeys.indexOf(endKey) + 1;

  return randomizeBlockMapKeys(blockMap.slice(startIndex, endIndex).map(function (block, blockKey) {
    var text = block.getText();
    var chars = block.getCharacterList();

    if (startKey === endKey) {
      return block.merge({
        text: text.slice(startOffset, endOffset),
        characterList: chars.slice(startOffset, endOffset)
      });
    }

    if (blockKey === startKey) {
      return block.merge({
        text: text.slice(startOffset),
        characterList: chars.slice(startOffset)
      });
    }

    if (blockKey === endKey) {
      return block.merge({
        text: text.slice(0, endOffset),
        characterList: chars.slice(0, endOffset)
      });
    }

    return block;
  }));
};

module.exports = getContentStateFragment;

/***/ }),
/* 31 */
/***/ (function(module, exports, __webpack_require__) {
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule randomizeBlockMapKeys
 * @format
 * 
 */



var ContentBlockNode = __webpack_require__(32);
var Immutable = __webpack_require__(13);

var generateRandomKey = __webpack_require__(33);

var OrderedMap = Immutable.OrderedMap;


var randomizeContentBlockNodeKeys = function randomizeContentBlockNodeKeys(blockMap) {
  var newKeysRef = {};

  // we keep track of root blocks in order to update subsequent sibling links
  var lastRootBlock = void 0;

  return OrderedMap(blockMap.withMutations(function (blockMapState) {
    blockMapState.forEach(function (block, index) {
      var oldKey = block.getKey();
      var nextKey = block.getNextSiblingKey();
      var prevKey = block.getPrevSiblingKey();
      var childrenKeys = block.getChildKeys();
      var parentKey = block.getParentKey();

      // new key that we will use to build linking
      var key = generateRandomKey();

      // we will add it here to re-use it later
      newKeysRef[oldKey] = key;

      if (nextKey) {
        var nextBlock = blockMapState.get(nextKey);
        if (nextBlock) {
          blockMapState.setIn([nextKey, 'prevSibling'], key);
        } else {
          // this can happen when generating random keys for fragments
          blockMapState.setIn([oldKey, 'nextSibling'], null);
        }
      }

      if (prevKey) {
        var prevBlock = blockMapState.get(prevKey);
        if (prevBlock) {
          blockMapState.setIn([prevKey, 'nextSibling'], key);
        } else {
          // this can happen when generating random keys for fragments
          blockMapState.setIn([oldKey, 'prevSibling'], null);
        }
      }

      if (parentKey && blockMapState.get(parentKey)) {
        var parentBlock = blockMapState.get(parentKey);
        var parentChildrenList = parentBlock.getChildKeys();
        blockMapState.setIn([parentKey, 'children'], parentChildrenList.set(parentChildrenList.indexOf(block.getKey()), key));
      } else {
        // blocks will then be treated as root block nodes
        blockMapState.setIn([oldKey, 'parent'], null);

        if (lastRootBlock) {
          blockMapState.setIn([lastRootBlock.getKey(), 'nextSibling'], key);
          blockMapState.setIn([oldKey, 'prevSibling'], newKeysRef[lastRootBlock.getKey()]);
        }

        lastRootBlock = blockMapState.get(oldKey);
      }

      childrenKeys.forEach(function (childKey) {
        var childBlock = blockMapState.get(childKey);
        if (childBlock) {
          blockMapState.setIn([childKey, 'parent'], key);
        } else {
          blockMapState.setIn([oldKey, 'children'], block.getChildKeys().filter(function (child) {
            return child !== childKey;
          }));
        }
      });
    });
  }).toArray().map(function (block) {
    return [newKeysRef[block.getKey()], block.set('key', newKeysRef[block.getKey()])];
  }));
};

var randomizeContentBlockKeys = function randomizeContentBlockKeys(blockMap) {
  return OrderedMap(blockMap.toArray().map(function (block) {
    var key = generateRandomKey();
    return [key, block.set('key', key)];
  }));
};

var randomizeBlockMapKeys = function randomizeBlockMapKeys(blockMap) {
  var isTreeBasedBlockMap = blockMap.first() instanceof ContentBlockNode;

  if (!isTreeBasedBlockMap) {
    return randomizeContentBlockKeys(blockMap);
  }

  return randomizeContentBlockNodeKeys(blockMap);
};

module.exports = randomizeBlockMapKeys;

/***/ }),
/* 32 */
/***/ (function(module, exports, __webpack_require__) {
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ContentBlockNode
 * @format
 * 
 *
 * This file is a fork of ContentBlock adding support for nesting references by
 * providing links to children, parent, prevSibling, and nextSibling.
 *
 * This is unstable and not part of the public API and should not be used by
 * production systems. This file may be update/removed without notice.
 */



function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var CharacterMetadata = __webpack_require__(19);
var Immutable = __webpack_require__(13);

var findRangesImmutable = __webpack_require__(20);

var List = Immutable.List,
    Map = Immutable.Map,
    OrderedSet = Immutable.OrderedSet,
    Record = Immutable.Record,
    Repeat = Immutable.Repeat;


var EMPTY_SET = OrderedSet();

var defaultRecord = {
  parent: null,
  characterList: List(),
  data: Map(),
  depth: 0,
  key: '',
  text: '',
  type: 'unstyled',
  children: List(),
  prevSibling: null,
  nextSibling: null
};

var haveEqualStyle = function haveEqualStyle(charA, charB) {
  return charA.getStyle() === charB.getStyle();
};

var haveEqualEntity = function haveEqualEntity(charA, charB) {
  return charA.getEntity() === charB.getEntity();
};

var decorateCharacterList = function decorateCharacterList(config) {
  if (!config) {
    return config;
  }

  var characterList = config.characterList,
      text = config.text;


  if (text && !characterList) {
    config.characterList = List(Repeat(CharacterMetadata.EMPTY, text.length));
  }

  return config;
};

var ContentBlockNode = function (_Record) {
  _inherits(ContentBlockNode, _Record);

  function ContentBlockNode() {
    var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : defaultRecord;

    _classCallCheck(this, ContentBlockNode);

    return _possibleConstructorReturn(this, _Record.call(this, decorateCharacterList(props)));
  }

  ContentBlockNode.prototype.getKey = function getKey() {
    return this.get('key');
  };

  ContentBlockNode.prototype.getType = function getType() {
    return this.get('type');
  };

  ContentBlockNode.prototype.getText = function getText() {
    return this.get('text');
  };

  ContentBlockNode.prototype.getCharacterList = function getCharacterList() {
    return this.get('characterList');
  };

  ContentBlockNode.prototype.getLength = function getLength() {
    return this.getText().length;
  };

  ContentBlockNode.prototype.getDepth = function getDepth() {
    return this.get('depth');
  };

  ContentBlockNode.prototype.getData = function getData() {
    return this.get('data');
  };

  ContentBlockNode.prototype.getInlineStyleAt = function getInlineStyleAt(offset) {
    var character = this.getCharacterList().get(offset);
    return character ? character.getStyle() : EMPTY_SET;
  };

  ContentBlockNode.prototype.getEntityAt = function getEntityAt(offset) {
    var character = this.getCharacterList().get(offset);
    return character ? character.getEntity() : null;
  };

  ContentBlockNode.prototype.getChildKeys = function getChildKeys() {
    return this.get('children');
  };

  ContentBlockNode.prototype.getParentKey = function getParentKey() {
    return this.get('parent');
  };

  ContentBlockNode.prototype.getPrevSiblingKey = function getPrevSiblingKey() {
    return this.get('prevSibling');
  };

  ContentBlockNode.prototype.getNextSiblingKey = function getNextSiblingKey() {
    return this.get('nextSibling');
  };

  ContentBlockNode.prototype.findStyleRanges = function findStyleRanges(filterFn, callback) {
    findRangesImmutable(this.getCharacterList(), haveEqualStyle, filterFn, callback);
  };

  ContentBlockNode.prototype.findEntityRanges = function findEntityRanges(filterFn, callback) {
    findRangesImmutable(this.getCharacterList(), haveEqualEntity, filterFn, callback);
  };

  return ContentBlockNode;
}(Record(defaultRecord));

module.exports = ContentBlockNode;

/***/ }),
/* 33 */
/***/ (function(module, exports, __webpack_require__) {
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule generateRandomKey
 * @format
 * 
 */



var seenKeys = {};
var MULTIPLIER = Math.pow(2, 24);

function generateRandomKey() {
  var key = void 0;
  while (key === undefined || seenKeys.hasOwnProperty(key) || !isNaN(+key)) {
    key = Math.floor(Math.random() * MULTIPLIER).toString(32);
  }
  seenKeys[key] = true;
  return key;
}

module.exports = generateRandomKey;

/***/ }),
/* 34 */
/***/ (function(module, exports, __webpack_require__) {
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule removeEntitiesAtEdges
 * @format
 * 
 */



var CharacterMetadata = __webpack_require__(19);

var findRangesImmutable = __webpack_require__(20);
var invariant = __webpack_require__(35);

function removeEntitiesAtEdges(contentState, selectionState) {
  var blockMap = contentState.getBlockMap();
  var entityMap = contentState.getEntityMap();

  var updatedBlocks = {};

  var startKey = selectionState.getStartKey();
  var startOffset = selectionState.getStartOffset();
  var startBlock = blockMap.get(startKey);
  var updatedStart = removeForBlock(entityMap, startBlock, startOffset);

  if (updatedStart !== startBlock) {
    updatedBlocks[startKey] = updatedStart;
  }

  var endKey = selectionState.getEndKey();
  var endOffset = selectionState.getEndOffset();
  var endBlock = blockMap.get(endKey);
  if (startKey === endKey) {
    endBlock = updatedStart;
  }

  var updatedEnd = removeForBlock(entityMap, endBlock, endOffset);

  if (updatedEnd !== endBlock) {
    updatedBlocks[endKey] = updatedEnd;
  }

  if (!Object.keys(updatedBlocks).length) {
    return contentState.set('selectionAfter', selectionState);
  }

  return contentState.merge({
    blockMap: blockMap.merge(updatedBlocks),
    selectionAfter: selectionState
  });
}

function getRemovalRange(characters, key, offset) {
  var removalRange;
  findRangesImmutable(characters, function (a, b) {
    return a.getEntity() === b.getEntity();
  }, function (element) {
    return element.getEntity() === key;
  }, function (start, end) {
    if (start <= offset && end >= offset) {
      removalRange = { start: start, end: end };
    }
  });
  !(typeof removalRange === 'object') ?   invariant(false) : void 0;
  return removalRange;
}

function removeForBlock(entityMap, block, offset) {
  var chars = block.getCharacterList();
  var charBefore = offset > 0 ? chars.get(offset - 1) : undefined;
  var charAfter = offset < chars.count() ? chars.get(offset) : undefined;
  var entityBeforeCursor = charBefore ? charBefore.getEntity() : undefined;
  var entityAfterCursor = charAfter ? charAfter.getEntity() : undefined;

  if (entityAfterCursor && entityAfterCursor === entityBeforeCursor) {
    var entity = entityMap.__get(entityAfterCursor);
    if (entity.getMutability() !== 'MUTABLE') {
      var _getRemovalRange = getRemovalRange(chars, entityAfterCursor, offset),
          start = _getRemovalRange.start,
          end = _getRemovalRange.end;

      var current;
      while (start < end) {
        current = chars.get(start);
        chars = chars.set(start, CharacterMetadata.applyEntity(current, null));
        start++;
      }
      return block.set('characterList', chars);
    }
  }

  return block;
}

module.exports = removeEntitiesAtEdges;

/***/ }),
/* 35 */
/***/ (function(module, exports, __webpack_require__) {

function invariant(condition, format, a, b, c, d, e, f) {

  if (!condition) {
    var error;
    if (format === undefined) {
      error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');
    } else {
      var args = [a, b, c, d, e, f];
      var argIndex = 0;
      error = new Error(format.replace(/%s/g, function () {
        return args[argIndex++];
      }));
      error.name = 'Invariant Violation';
    }

    error.framesToPop = 1; // we don't care about invariant's own frame
    throw error;
  }
}

module.exports = invariant;

/***/ }),
/* 36 */
/***/ (function(module, exports) {

function _arrayWithHoles(arr) {
  if (Array.isArray(arr)) return arr;
}

module.exports = _arrayWithHoles;

/***/ }),
/* 37 */
/***/ (function(module, exports) {

function _iterableToArrayLimit(arr, i) {
  var _arr = [];
  var _n = true;
  var _d = false;
  var _e = undefined;

  try {
    for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
      _arr.push(_s.value);

      if (i && _arr.length === i) break;
    }
  } catch (err) {
    _d = true;
    _e = err;
  } finally {
    try {
      if (!_n && _i["return"] != null) _i["return"]();
    } finally {
      if (_d) throw _e;
    }
  }

  return _arr;
}

module.exports = _iterableToArrayLimit;

/***/ }),
/* 38 */
/***/ (function(module, exports) {

function _nonIterableRest() {
  throw new TypeError("Invalid attempt to destructure non-iterable instance");
}

module.exports = _nonIterableRest;

/***/ }),
/* 39 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
__webpack_require__.r(__webpack_exports__);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/typeof.js
var helpers_typeof = __webpack_require__(15);
var typeof_default = /*#__PURE__*/__webpack_require__.n(helpers_typeof);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/objectSpread.js
var objectSpread = __webpack_require__(5);
var objectSpread_default = /*#__PURE__*/__webpack_require__.n(objectSpread);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/objectWithoutProperties.js
var objectWithoutProperties = __webpack_require__(21);
var objectWithoutProperties_default = /*#__PURE__*/__webpack_require__.n(objectWithoutProperties);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/classCallCheck.js
var classCallCheck = __webpack_require__(4);
var classCallCheck_default = /*#__PURE__*/__webpack_require__.n(classCallCheck);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/createClass.js
var createClass = __webpack_require__(7);
var createClass_default = /*#__PURE__*/__webpack_require__.n(createClass);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/possibleConstructorReturn.js
var possibleConstructorReturn = __webpack_require__(8);
var possibleConstructorReturn_default = /*#__PURE__*/__webpack_require__.n(possibleConstructorReturn);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/getPrototypeOf.js
var getPrototypeOf = __webpack_require__(9);
var getPrototypeOf_default = /*#__PURE__*/__webpack_require__.n(getPrototypeOf);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/inherits.js
var inherits = __webpack_require__(10);
var inherits_default = /*#__PURE__*/__webpack_require__.n(inherits);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/assertThisInitialized.js
var assertThisInitialized = __webpack_require__(1);
var assertThisInitialized_default = /*#__PURE__*/__webpack_require__.n(assertThisInitialized);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/defineProperty.js
var defineProperty = __webpack_require__(2);
var defineProperty_default = /*#__PURE__*/__webpack_require__.n(defineProperty);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/toConsumableArray.js
var toConsumableArray = __webpack_require__(12);
var toConsumableArray_default = /*#__PURE__*/__webpack_require__.n(toConsumableArray);

// EXTERNAL MODULE: ../node_modules/draft-js/dist/Draft.css
var Draft = __webpack_require__(40);

// EXTERNAL MODULE: ./assets/scss/_base.scss
var _base = __webpack_require__(42);

// EXTERNAL MODULE: external "react"
var external_react_ = __webpack_require__(0);
var external_react_default = /*#__PURE__*/__webpack_require__.n(external_react_);

// CONCATENATED MODULE: ./languages/en.js
/* harmony default export */ var en = ({
  base: {
    remove: 'Remove',
    cancel: 'Cancel',
    confirm: 'Confirm',
    inert: 'Insert',
    width: 'Width',
    height: 'Height'
  },
  controls: {
    clear: 'Clear',
    undo: 'Undo',
    redo: 'Redo',
    fontSize: 'Font Size',
    color: 'Color',
    textColor: 'Text',
    tempColors: 'Temp Colors',
    backgroundColor: 'Background',
    bold: 'Bold',
    lineHeight: 'Line Height',
    letterSpacing: 'Letter Spacing',
    textIndent: 'Text Indent',
    increaseIndent: 'Increase Indent',
    decreaseIndent: 'Decrease Indent',
    italic: 'Italic',
    underline: 'Underline',
    strikeThrough: 'Strike Through',
    fontFamily: 'Font Family',
    textAlign: 'Text Alignment',
    alignLeft: 'Left Alignment',
    alignCenter: 'Center Alignment',
    alignRight: 'Right Alignment',
    alignJustify: 'Justify Alignment',
    floatLeft: 'Left Float',
    floatRight: 'Right Float',
    superScript: 'Super Script',
    subScript: 'Sub Script',
    removeStyles: 'Remove Styles',
    headings: 'Headings',
    header: 'Header',
    normal: 'Normal',
    orderedList: 'Ordered List',
    unorderedList: 'Unordered List',
    blockQuote: 'Quote',
    code: 'Code',
    link: 'Link',
    unlink: 'Unlink',
    hr: 'Horizontal Line',
    media: 'Media',
    mediaLibirary: 'Media Library',
    emoji: 'Emoji',
    fullscreen: 'Fullscreen',
    exitFullscreen: 'Exit Fullscreen'
  },
  linkEditor: {
    textInputPlaceHolder: 'Input link text',
    linkInputPlaceHolder: 'Input link URL',
    inputWithEnterPlaceHolder: 'Input link URL and press Enter',
    openInNewWindow: 'Open in new window',
    removeLink: 'Remove Link'
  },
  audioPlayer: {
    title: 'Play Audio'
  },
  videoPlayer: {
    title: 'Play Video',
    embedTitle: 'Embed Media'
  },
  media: {
    image: 'Image',
    video: 'Video',
    audio: 'Audio',
    embed: 'Embed'
  }
});
// CONCATENATED MODULE: ./languages/zh.js
/* harmony default export */ var zh = ({
  base: {
    remove: '删除',
    cancel: '取消',
    confirm: '确定',
    inert: '插入',
    width: '宽度',
    height: '高度'
  },
  controls: {
    clear: '清除内容',
    undo: '撤销',
    redo: '重做',
    fontSize: '字号',
    lineHeight: '行高',
    letterSpacing: '字间距',
    textIndent: '段落缩进',
    increaseIndent: '增加缩进',
    decreaseIndent: '减少缩进',
    border: '边框',
    color: '颜色',
    textColor: '文字颜色',
    backgroundColor: '背景颜色',
    tempColors: '临时颜色',
    bold: '加粗',
    italic: '斜体',
    underline: '下划线',
    strikeThrough: '删除线',
    fontFamily: '字体',
    textAlign: '文本对齐',
    alignLeft: '居左',
    alignCenter: '居中',
    alignRight: '居右',
    alignJustify: '两端',
    floatLeft: '左浮动',
    floatRight: '右浮动',
    superScript: '上标',
    subScript: '下标',
    removeStyles: '清除样式',
    headings: '标题',
    header: '标题',
    normal: '常规',
    orderedList: '有序列表',
    unorderedList: '无序列表',
    blockQuote: '引用',
    code: '代码',
    link: '链接',
    unlink: '清除链接',
    hr: '水平线',
    media: '媒体',
    mediaLibirary: '媒体库',
    emoji: '小表情',
    fullscreen: '全屏',
    exitFullscreen: '退出全屏'
  },
  linkEditor: {
    textInputPlaceHolder: '输入链接文字',
    linkInputPlaceHolder: '输入链接地址',
    inputWithEnterPlaceHolder: '输入链接地址并回车',
    openInNewWindow: '在新窗口打开',
    removeLink: '移除链接'
  },
  audioPlayer: {
    title: '播放音频文件'
  },
  videoPlayer: {
    title: '播放视频文件',
    embedTitle: '嵌入式媒体'
  },
  media: {
    image: '图像',
    video: '视频',
    audio: '音频',
    embed: '嵌入式媒体'
  }
});
// CONCATENATED MODULE: ./languages/zh-hant.js
/* harmony default export */ var zh_hant = ({
  base: {
    remove: '刪除',
    cancel: '取消',
    confirm: '確定',
    inert: '插入',
    width: '宽度',
    height: '高度'
  },
  controls: {
    clear: '清除内容',
    undo: '撤銷',
    redo: '重做',
    fontSize: '字號',
    color: '顏色',
    textColor: '文字顏色',
    backgroundColor: '背景顏色',
    tempColors: '臨時顏色',
    bold: '加粗',
    lineHeight: '行高',
    letterSpacing: '字間距',
    textIndent: '段落縮進',
    increaseIndent: '增加縮進',
    decreaseIndent: '减少縮進',
    border: '邊框',
    italic: '斜體',
    underline: '下劃線',
    strikeThrough: '刪除線',
    fontFamily: '字體',
    textAlign: '文本對齊',
    alignLeft: '居左',
    alignCenter: '居中',
    alignRight: '居右',
    alignJustify: '兩端對齊',
    floatLeft: '左浮動',
    floatRight: '右浮動',
    superScript: '上標',
    subScript: '下標',
    removeStyles: '清除样式',
    headings: '標題',
    header: '標題',
    normal: '常規',
    orderedList: '有序列表',
    unorderedList: '無序列表',
    blockQuote: '引用',
    code: '代碼',
    link: '鏈接',
    unlink: '清除鏈接',
    hr: '水平线',
    media: '媒體',
    mediaLibirary: '媒體库',
    emoji: '小表情',
    fullscreen: '全熒幕',
    exitFullscreen: '退出全熒幕'
  },
  linkEditor: {
    textInputPlaceHolder: '輸入鏈接文字',
    linkInputPlaceHolder: '輸入鏈接地址',
    inputWithEnterPlaceHolder: '輸入鏈接地址並回車',
    openInNewWindow: '在新窗口打開',
    removeLink: '移除鏈接'
  },
  audioPlayer: {
    title: '播放音頻文件'
  },
  videoPlayer: {
    title: '播放視頻文件',
    embedTitle: '嵌入式媒體'
  },
  media: {
    image: '圖像',
    video: '視頻',
    audio: '音頻',
    embed: '嵌入式媒體'
  }
});
// CONCATENATED MODULE: ./languages/pl.js
/* harmony default export */ var pl = ({
  base: {
    remove: 'Usuń',
    cancel: 'Anuluj',
    confirm: 'Potwierdź',
    inert: 'Wstaw',
    width: 'Szerokość',
    height: 'Wysokość'
  },
  controls: {
    clear: 'Wyczyść',
    undo: 'Cofnij',
    redo: 'Przywróć',
    fontSize: 'Wielkość',
    color: 'Kolor',
    textColor: 'Kolor tekstu',
    tempColors: 'Kolory',
    backgroundColor: 'Tło',
    bold: 'Pogrubienie',
    lineHeight: 'Wysokość linii',
    letterSpacing: 'Odstęp znaków',
    textIndent: 'Wcięcie tekstu',
    increaseIndent: 'Zwiększ wcięcie',
    decreaseIndent: 'Zmniejsz wcięcie',
    italic: 'Italiki',
    underline: 'Podkreślenie',
    strikeThrough: 'Przekreślenie',
    fontFamily: 'Czcionka',
    textAlign: 'Wyrównanie tekstu',
    alignLeft: 'Do lewej',
    alignCenter: 'Wycentruj',
    alignRight: 'Do prawej',
    alignJustify: 'Wyjustuj',
    floatLeft: 'Do lewej',
    floatRight: 'Do prawej',
    superScript: 'Superskrypt',
    subScript: 'Subskrypt',
    removeStyles: 'Usuń stylowanie',
    headings: 'Nagłówki',
    header: 'Nagłówek',
    normal: 'Normalny',
    orderedList: 'Lista uporządkowana',
    unorderedList: 'Lista nieuporządkowana',
    blockQuote: 'Cytat',
    code: 'Kod',
    link: 'Link',
    unlink: 'Usuń link',
    hr: 'Linia pozioma',
    media: 'Media',
    mediaLibirary: 'Biblioteka mediów',
    emoji: 'Emoji'
  },
  linkEditor: {
    textInputPlaceHolder: 'Wpisz tekst linku',
    linkInputPlaceHolder: 'Wpisz Adres URL',
    inputWithEnterPlaceHolder: 'Wpisz adres URL i naciśnij Enter',
    openInNewWindow: 'Otwórz w nowym oknie',
    removeLink: 'Usuń link'
  },
  audioPlayer: {
    title: 'Odtwórz audio'
  },
  videoPlayer: {
    title: 'Odtwórz wideo',
    embedTitle: 'Tytuł'
  },
  media: {
    image: 'Obraz',
    video: 'Wideo',
    audio: 'Audio',
    embed: 'Obiekt osadzony'
  }
});
// CONCATENATED MODULE: ./languages/kr.js
/* harmony default export */ var kr = ({
  base: {
    remove: '삭제',
    cancel: '취소',
    confirm: '결정',
    inert: '삽입',
    width: '너비',
    height: '높이'
  },
  controls: {
    clear: '콘텐츠지우기',
    undo: '취소',
    redo: '다시하기',
    fontSize: '글자크기',
    lineHeight: '행높이',
    letterSpacing: '단어간격',
    textIndent: '단락들여쓰기',
    increaseIndent: '들여쓰기늘리기',
    decreaseIndent: '들여쓰기줄이기',
    border: '국경',
    color: '색상',
    textColor: '텍스트색상',
    backgroundColor: '배경색상',
    tempColors: '임시색',
    bold: '굵게',
    italic: '기울임꼴',
    underline: '밑줄',
    strikeThrough: '취소선',
    fontFamily: '글꼴',
    textAlign: '텍스트정렬',
    alignLeft: '왼쪽',
    alignCenter: '중심',
    alignRight: '오른쪽',
    alignJustify: '양쪽끝',
    floatLeft: '떠다니기',
    floatRight: '오른쪽부동',
    superScript: '위첨자',
    subScript: '첨자',
    removeStyles: '스타일지우기',
    headings: '제목',
    header: '제목',
    normal: '재래식',
    orderedList: '순서가지정된목록',
    unorderedList: '정렬되지않은목록',
    blockQuote: '참고문헌',
    code: '코드',
    link: '링크',
    unlink: '링크삭제',
    hr: '수평선',
    media: '미디어',
    mediaLibirary: '미디어라이브러리',
    emoji: '작은표현',
    fullscreen: '전체화면',
    exitFullscreen: '전체화면종료'
  },
  linkEditor: {
    textInputPlaceHolder: '링크텍스트입력',
    linkInputPlaceHolder: '링크주소입력',
    inputWithEnterPlaceHolder: '링크주소입력.',
    openInNewWindow: '새창열기',
    removeLink: '링크삭제'
  },
  audioPlayer: {
    title: '오디오파일재생'
  },
  videoPlayer: {
    title: '비디오파일재생',
    embedTitle: '임베디드미디어'
  },
  media: {
    image: '이미지',
    video: '비디오',
    audio: '오디오',
    embed: '임베디드미디어'
  }
});
// CONCATENATED MODULE: ./languages/tr.js
/* harmony default export */ var tr = ({
  base: {
    remove: 'Kaldır',
    cancel: 'İptal',
    confirm: 'Onayla',
    inert: 'Ekle',
    width: 'Genişlik',
    height: 'Yükseklik'
  },
  controls: {
    clear: 'Temizle',
    undo: 'Geri al',
    redo: 'İleri al',
    fontSize: 'Yazı boyutu',
    color: 'Renk',
    textColor: 'Yazı rengi',
    tempColors: 'Geçici renkler',
    backgroundColor: 'Arkaplan',
    bold: 'Kalın',
    lineHeight: 'Satır yüksekliği',
    letterSpacing: 'Harf aralığı',
    textIndent: 'Çentik aralığı',
    increaseIndent: 'Çentiği genişlet',
    decreaseIndent: 'Çentiği daralt',
    italic: 'Eğik',
    underline: 'Altı çizili',
    strikeThrough: 'Üstü çizili',
    fontFamily: 'Yazı tipi',
    textAlign: 'Metin Hizalama',
    alignLeft: 'Sola hizala',
    alignCenter: 'Ortaya hizala',
    alignRight: 'Sağa hizala',
    alignJustify: 'Her iki tarafa hizala',
    floatLeft: 'Sola yatır',
    floatRight: 'Sağa yatır',
    superScript: 'Ana kod',
    subScript: 'Alt kod',
    removeStyles: 'Stilleri kaldır',
    headings: 'Başlıklar',
    header: 'Başlık',
    normal: 'Normal',
    orderedList: 'Sıralı liste',
    unorderedList: 'Sırasız liste',
    blockQuote: 'Alıntı',
    code: 'Kod',
    link: 'Bağlantı',
    unlink: 'Bağlantıyı kaldır',
    hr: 'Yatay çizgi',
    media: 'Medya',
    mediaLibirary: 'Kütüphane',
    emoji: 'İfade',
    fullscreen: 'Tam ekran',
    exitFullscreen: 'Tam ekrandan çık'
  },
  linkEditor: {
    textInputPlaceHolder: 'Bağlantı metnini girin',
    linkInputPlaceHolder: 'Bağlantı URL\' si girin',
    inputWithEnterPlaceHolder: 'Bağlantı URL\'si girin ve Enter\' a basın',
    openInNewWindow: 'Yeni pencerede aç',
    removeLink: 'Bağlantıyı kaldır'
  },
  audioPlayer: {
    title: 'Ses çal'
  },
  videoPlayer: {
    title: 'Görüntü oynat',
    embedTitle: 'Görüntüyü göm'
  },
  media: {
    image: 'Resim',
    video: 'Görüntü',
    audio: 'Ses',
    embed: 'Gömülü nesne'
  }
});
// CONCATENATED MODULE: ./languages/jpn.js
/* harmony default export */ var jpn = ({
  base: {
    remove: '削除',
    cancel: 'キャンセル',
    confirm: '決定',
    inert: '挿入',
    width: '幅',
    height: '高さ'
  },
  controls: {
    clear: 'クリアコンテンツ',
    undo: 'キャンセル',
    redo: 'キャンセル',
    fontSize: 'フォントサイズ',
    lineHeight: 'フォントサイズ',
    letterSpacing: 'ワード間隔',
    textIndent: '段落のインデント',
    increaseIndent: 'インデントを増やす',
    decreaseIndent: 'インデントを減らす',
    border: '国境',
    color: '色',
    textColor: 'テキストの色',
    backgroundColor: '背景色',
    tempColors: '仮色',
    bold: '太字',
    italic: 'イタリック体',
    underline: '下線',
    strikeThrough: '取り消し線',
    fontFamily: 'フォント',
    textAlign: 'テキストの配置',
    alignLeft: '左',
    alignCenter: '中央揃え',
    alignRight: '右に立つ',
    alignJustify: '両端',
    floatLeft: '左フローティング',
    floatRight: '右フローティング',
    superScript: '上付き',
    subScript: '下付き文字',
    removeStyles: 'クリアスタイル',
    headings: '役職',
    header: '役職',
    normal: '従来の',
    orderedList: '順序付きリスト',
    unorderedList: '番号なしリスト',
    blockQuote: '参照',
    code: 'コード',
    link: 'リンク',
    unlink: 'リンクを解除',
    hr: '横線',
    media: 'メディア',
    mediaLibirary: 'メディアライブラリー',
    emoji: '小さな表現',
    fullscreen: '全画面',
    exitFullscreen: '全画面を退く'
  },
  linkEditor: {
    textInputPlaceHolder: 'リンクテキストを入力',
    linkInputPlaceHolder: 'リンクアドレスを入力',
    inputWithEnterPlaceHolder: 'リンクアドレスを入力して戻ります',
    openInNewWindow: '新しいウィンドウで開く',
    removeLink: '新しいウィンドウで開く'
  },
  audioPlayer: {
    title: 'オーディオファイルを再生する'
  },
  videoPlayer: {
    title: 'ビデオファイルを再生する',
    embedTitle: '埋め込みメディア'
  },
  media: {
    image: '画像',
    video: 'ビデオ',
    audio: '音声',
    embed: '埋め込みメディア'
  }
});
// CONCATENATED MODULE: ./languages/ru.js
/* harmony default export */ var ru = ({
  base: {
    remove: 'Удалить',
    cancel: 'Отмена',
    confirm: 'Подтвердить',
    insert: 'Вставить',
    width: 'Ширина',
    height: 'Высота'
  },
  controls: {
    clear: 'Очистить',
    undo: 'Отменить',
    redo: 'Повторить',
    fontSize: 'Размер шрифта',
    color: 'Цвет',
    textColor: 'Цвет текста',
    tempColors: 'Temp Colors',
    backgroundColor: 'Цвет фона',
    bold: 'Жирный',
    lineHeight: 'Межстрочный интервал',
    letterSpacing: 'Межбуквенный интервал',
    textIndent: 'Отступ',
    increaseIndent: 'Увеличить отступ',
    decreaseIndent: 'Уменьшить отступ',
    italic: 'Курсив',
    underline: 'Подчеркнутый',
    strikeThrough: 'Перечеркнутый',
    fontFamily: 'Шрифт',
    textAlign: 'Расположение текста',
    alignLeft: 'По левому краю',
    alignCenter: 'По центру',
    alignRight: 'По правому краю',
    alignJustify: 'По ширине',
    floatLeft: 'Обтекание слева',
    floatRight: 'Обтекание справа',
    superScript: 'Надстрочный индекс',
    subScript: 'Подстрочный индекс',
    removeStyles: 'Убрать стили',
    headings: 'Заголовки',
    header: 'Заголовок',
    normal: 'Обычный',
    orderedList: 'Упорядоченный список',
    unorderedList: 'Неупорядоченный список',
    blockQuote: 'Цитата',
    code: 'Код',
    link: 'Вставить ссылку',
    unlink: 'Убрать ссылку',
    hr: 'Горизонтальная линия',
    media: 'Медиа',
    mediaLibirary: 'Медиа библиотека',
    emoji: 'Emoji',
    fullscreen: 'Полноэкранный режим',
    exitFullscreen: 'Выйти из полноэкранного режима'
  },
  linkEditor: {
    textInputPlaceHolder: 'Введите текст ссылки',
    linkInputPlaceHolder: 'Вставить ссылку',
    inputWithEnterPlaceHolder: 'Вставить ссылку и нажать Enter',
    openInNewWindow: 'Открыть в новом окне',
    removeLink: 'Убрать ссылку'
  },
  audioPlayer: {
    title: 'Воспроизвести аудиофайл'
  },
  videoPlayer: {
    title: 'Воспроизвести видеофайл',
    embedTitle: 'Embed Media'
  },
  media: {
    image: 'Картинка',
    video: 'Видео',
    audio: 'Аудио',
    embed: 'Встроенное'
  }
});
// CONCATENATED MODULE: ./languages/fr.js
/* harmony default export */ var fr = ({
  base: {
    remove: 'Supprimer',
    cancel: 'Annuler',
    confirm: 'Confirmer',
    inert: 'Insérer',
    width: 'Largeur',
    height: 'Hauteur'
  },
  controls: {
    clear: 'Effacer',
    undo: 'Annuler',
    redo: 'Refaire',
    fontSize: 'Taille de police',
    color: 'Couleur',
    textColor: 'Texte',
    tempColors: 'Couleurs temporaire',
    backgroundColor: 'Couleur d\'arrière plan',
    bold: 'Gras',
    lineHeight: 'Hauteur de ligne',
    letterSpacing: 'Espacement des lettres',
    textIndent: 'Indentation du texte',
    increaseIndent: 'Augmenter l\'indentation',
    decreaseIndent: 'Réduire l\'indentation',
    italic: 'Italique',
    underline: 'Souligner',
    strikeThrough: 'Barrer',
    fontFamily: 'Police d\'écriture',
    textAlign: 'Alignement du texte',
    alignLeft: 'Aligner à gauche',
    alignCenter: 'Aligner au centre',
    alignRight: 'Aligner à droite',
    alignJustify: 'Justifier',
    floatLeft: 'Déplacer à gauche',
    floatRight: 'Déplacer à droite',
    superScript: 'Super-script',
    subScript: 'Sous-script',
    removeStyles: 'Supprimer les styles',
    headings: 'Titres',
    header: 'Entêtes',
    normal: 'Normal',
    orderedList: 'Liste ordonnée',
    unorderedList: 'Liste non-ordonnée',
    blockQuote: 'Citation',
    code: 'Code',
    link: 'Insérer un lien',
    unlink: 'Supprimer le lien',
    hr: 'Ligne horizontale',
    media: 'Média',
    mediaLibirary: 'Bibliothêque',
    emoji: 'Emoji',
    fullscreen: 'Plein écran',
    exitFullscreen: 'Quitter le plein écran'
  },
  linkEditor: {
    textInputPlaceHolder: 'Insérer le texte à afficher',
    linkInputPlaceHolder: 'Insérer le lien URL',
    inputWithEnterPlaceHolder: 'Insérer le lien URL puis appuyer sur Entrée',
    openInNewWindow: 'Ouvrir dans une nouvelle fenêtre',
    removeLink: 'Supprimer le lien'
  },
  audioPlayer: {
    title: 'Lancer le son audio'
  },
  videoPlayer: {
    title: 'Lancer la video',
    embedTitle: 'Intégrer média'
  },
  media: {
    image: 'Image',
    video: 'Vidéo',
    audio: 'Audio',
    embed: 'Intégré'
  }
});
// CONCATENATED MODULE: ./languages/pt-br.js
/* harmony default export */ var pt_br = ({
  base: {
    remove: 'Remover',
    cancel: 'Cancelar',
    confirm: 'Confirmar',
    inert: 'Inserir',
    width: 'Largura',
    height: 'Altura'
  },
  controls: {
    clear: 'Limpar',
    undo: 'Desfazer',
    redo: 'Refazer',
    fontSize: 'Tamanho da Fonte',
    color: 'Cor',
    textColor: 'Texto',
    tempColors: 'Temp Colors',
    backgroundColor: 'Cor de Fundo',
    bold: 'Negrito',
    lineHeight: 'Altura da LinhaLine Height',
    letterSpacing: 'Espaçamento entre Letras',
    textIndent: 'Identação de Texto',
    increaseIndent: 'Aumentar Identação',
    decreaseIndent: 'Diminuir Identção',
    italic: 'Itálico',
    underline: 'Sublinhado',
    strikeThrough: 'Riscado',
    fontFamily: 'Família da Fonte',
    textAlign: 'Alinhamento de Texto',
    alignLeft: 'Alinhamento à Esquerda',
    alignCenter: 'Alinhamento Centralizado',
    alignRight: 'Alinhamento à Direita',
    alignJustify: 'Alinhamento Justificado',
    floatLeft: 'Flutuação à Esquerda',
    floatRight: 'Flutuação à Direita',
    superScript: 'Sobrescrito',
    subScript: 'Subscrito',
    removeStyles: 'Remover Estilos',
    headings: 'Cabeçalhos',
    header: 'Cabeçalho',
    normal: 'Normal',
    orderedList: 'Lista Ordenada',
    unorderedList: 'Lista Não Ordenada',
    blockQuote: 'Citação',
    code: 'Código',
    link: 'Link',
    unlink: 'Remover Link',
    hr: 'Linha Horizontal',
    media: 'Mídia',
    mediaLibirary: 'Biblioteca de Mídia',
    emoji: 'Emoji',
    fullscreen: 'Tela Cheia',
    exitFullscreen: 'Sair de Tela Cheia'
  },
  linkEditor: {
    textInputPlaceHolder: 'Insira o texto do link',
    linkInputPlaceHolder: 'Insira a URL do link',
    inputWithEnterPlaceHolder: 'Insira a URL do link e aperte Enter',
    openInNewWindow: 'Abrir em nova janela',
    removeLink: 'Remover Link'
  },
  audioPlayer: {
    title: 'Tocar Áudio'
  },
  videoPlayer: {
    title: 'Tocar Vídeo',
    embedTitle: 'Mídia Embutida'
  },
  media: {
    image: 'Imagem',
    video: 'Vídeo',
    audio: 'Áudio',
    embed: 'Embutido'
  }
});
// CONCATENATED MODULE: ./languages/index.js










/* harmony default export */ var languages = ({
  'en': en,
  'zh': zh,
  'zh-hant': zh_hant,
  'pl': pl,
  'kr': kr,
  'tr': tr,
  'jpn': jpn,
  'ru': ru,
  'fr': fr,
  'pt-br': pt_br
});
// EXTERNAL MODULE: external "braft-finder"
var external_braft_finder_ = __webpack_require__(17);
var external_braft_finder_default = /*#__PURE__*/__webpack_require__.n(external_braft_finder_);

// EXTERNAL MODULE: external "braft-utils"
var external_braft_utils_ = __webpack_require__(3);

// EXTERNAL MODULE: external "draft-js"
var external_draft_js_ = __webpack_require__(6);

// EXTERNAL MODULE: external "immutable"
var external_immutable_ = __webpack_require__(13);
var external_immutable_default = /*#__PURE__*/__webpack_require__.n(external_immutable_);

// CONCATENATED MODULE: ./configs/keybindings.js
 // TODO
// 允许自定义的快捷键设置

/* harmony default export */ var keybindings = (function (customKeyBindingFn) {
  return function (event) {
    if (event.keyCode === 83 && (external_draft_js_["KeyBindingUtil"].hasCommandModifier(event) || external_draft_js_["KeyBindingUtil"].isCtrlKeyCommand(event))) {
      return 'braft-save';
    }

    if (customKeyBindingFn) {
      return customKeyBindingFn(event) || Object(external_draft_js_["getDefaultKeyBinding"])(event);
    }

    return Object(external_draft_js_["getDefaultKeyBinding"])(event);
  };
});
// CONCATENATED MODULE: ./configs/props.js
/* harmony default export */ var configs_props = ({
  language: 'zh',
  controls: ['undo', 'redo', 'separator', 'font-size', 'line-height', 'letter-spacing', 'separator', 'text-color', 'bold', 'italic', 'underline', 'strike-through', 'separator', 'superscript', 'subscript', 'remove-styles', 'emoji', 'separator', 'text-indent', 'text-align', 'separator', 'headings', 'list-ul', 'list-ol', 'blockquote', 'code', 'separator', 'media', 'link', 'table', 'split', 'hr', 'separator', 'clear', 'separator', 'fullscreen'],
  excludeControls: [],
  extendControls: [],
  extendAtomics: [],
  componentBelowControlBar: null,
  media: {
    pasteImage: true,
    imagePasteLimit: 5,
    image: true,
    video: true,
    audio: true,
    uploadFn: null,
    validateFn: null,
    onBeforeDeselect: null,
    onDeselect: null,
    onBeforeSelect: null,
    onSelect: null,
    onBeforeRemove: null,
    onRemove: null,
    onCancel: null,
    onFileSelect: null,
    onBeforeInsert: null,
    onInsert: null,
    onChange: null,
    accepts: {
      image: 'image/png,image/jpeg,image/gif,image/webp,image/apng,image/svg',
      video: 'video/mp4',
      audio: 'audio/mp3'
    },
    externals: {
      audio: true,
      video: true,
      image: true,
      embed: true
    }
  },
  imageControls: ['float-left', 'float-right', 'align-left', 'align-center', 'align-right', 'link', 'size', 'remove'],
  imageResizable: true,
  colors: ['#000000', '#333333', '#666666', '#999999', '#cccccc', '#ffffff', '#61a951', '#16a085', '#07a9fe', '#003ba5', '#8e44ad', '#f32784', '#c0392b', '#d35400', '#f39c12', '#fdda00'],
  colorPicker: null,
  colorPickerTheme: 'dark',
  colorPickerAutoHide: true,
  codeTabIndents: 2,
  headings: ['header-one', 'header-two', 'header-three', 'header-four', 'header-five', 'header-six', 'unstyled'],
  textAligns: ['left', 'center', 'right', 'justify'],
  textBackgroundColor: true,
  allowInsertLinkText: false,
  defaultLinkTarget: '',
  letterSpacings: [0, 1, 2, 3, 4, 5, 6],
  lineHeights: [1, 1.2, 1.5, 1.75, 2, 2.5, 3, 4],
  fontSizes: [12, 14, 16, 18, 20, 24, 28, 30, 32, 36, 40, 48, 56, 64, 72, 96, 120, 144],
  fontFamilies: [{
    name: 'Araial',
    family: 'Arial, Helvetica, sans-serif'
  }, {
    name: 'Georgia',
    family: 'Georgia, serif'
  }, {
    name: 'Impact',
    family: 'Impact, serif'
  }, {
    name: 'Monospace',
    family: '"Courier New", Courier, monospace'
  }, {
    name: 'Tahoma',
    family: 'tahoma, arial, "Hiragino Sans GB", 宋体, sans-serif'
  }],
  converts: {
    unitExportFn: function unitExportFn(value, type) {
      return type === 'line-height' ? value : "".concat(value, "px");
    }
  },
  emojis: ['🤣', '🙌', '💚', '💛', '👏', '😉', '💯', '💕', '💞', '💘', '💙', '💝', '🖤', '💜', '❤️', '😍', '😻', '💓', '💗', '😋', '😇', '😂', '😹', '😘', '💖', '😁', '😀', '🤞', '😲', '😄', '😊', '👍', '😌', '😃', '😅', '✌️', '🤗', '💋', '😗', '😽', '😚', '🤠', '😙', '😺', '👄', '😸', '😏', '😼', '👌', '😎', '😆', '😛', '🙏', '🤝', '🙂', '🤑', '😝', '😐', '😑', '🤤', '😤', '🙃', '🤡', '😶', '😪', '😴', '😵', '😓', '👊', '😦', '😷', '🤐', '😜', '🤓', '👻', '😥', '🙄', '🤔', '🤒', '🙁', '😔', '😯', '☹️', '☠️', '😰', '😩', '😖', '😕', '😒', '😣', '😢', '😮', '😿', '🤧', '😫', '🤥', '😞', '😬', '👎', '💀', '😳', '😨', '🤕', '🤢', '😱', '😭', '😠', '😈', '😧', '💔', '😟', '🙀', '💩', '👿', '😡', '😾', '🖕'],
  stripPastedStyles: false,
  triggerChangeOnMount: true,
  className: '',
  style: {},
  controlBarClassName: '',
  controlBarStyle: {},
  contentClassName: '',
  contentStyle: {},
  draftProps: {},
  hooks: {},
  onChange: null,
  onFocus: null,
  onBlur: null,
  onTab: null,
  onDelete: null,
  onSave: null,
  fixPlaceholder: false
});
// EXTERNAL MODULE: ../node_modules/draft-js/lib/getFragmentFromSelection.js
var getFragmentFromSelection = __webpack_require__(22);
var getFragmentFromSelection_default = /*#__PURE__*/__webpack_require__.n(getFragmentFromSelection);

// EXTERNAL MODULE: external "draftjs-utils"
var external_draftjs_utils_ = __webpack_require__(23);

// CONCATENATED MODULE: ./configs/handlers.js






var handlers_keyCommandHandlers = function keyCommandHandlers(command, editorState, editor) {
  if (editor.editorProps.handleKeyCommand && editor.editorProps.handleKeyCommand(command, editorState, editor) === 'handled') {
    return 'handled';
  }

  if (command === 'braft-save') {
    editor.editorProps.onSave && editor.editorProps.onSave(editorState);
    return 'handled';
  }

  var _editor$editorProps = editor.editorProps,
      controls = _editor$editorProps.controls,
      excludeControls = _editor$editorProps.excludeControls;
  var allowIndent = (controls.indexOf('text-indent') !== 0 || controls.find(function (item) {
    return item.key === 'text-indent';
  })) && excludeControls.indexOf('text-indent') === -1;
  var cursorStart = editorState.getSelection().getStartOffset();
  var cursorEnd = editorState.getSelection().getEndOffset();
  var cursorIsAtFirst = cursorStart === 0 && cursorEnd === 0;

  if (command === 'backspace') {
    if (editor.editorProps.onDelete && editor.editorProps.onDelete(editorState) === false) {
      return 'handled';
    }

    var blockType = external_braft_utils_["ContentUtils"].getSelectionBlockType(editorState);

    if (allowIndent && cursorIsAtFirst && blockType !== 'code-block') {
      editor.setValue(external_braft_utils_["ContentUtils"].decreaseSelectionIndent(editorState));
    }
  }

  if (command === 'tab') {
    var _blockType = external_braft_utils_["ContentUtils"].getSelectionBlockType(editorState);

    if (_blockType === 'code-block') {
      editor.setValue(external_braft_utils_["ContentUtils"].insertText(editorState, ' '.repeat(editor.editorProps.codeTabIndents)));
      return 'handled';
    } else if (_blockType === 'ordered-list-item' || _blockType === 'unordered-list-item') {
      var newEditorState = external_draft_js_["RichUtils"].onTab(event, editorState, 4);

      if (newEditorState !== editorState) {
        editor.setValue(newEditorState);
      }

      return 'handled';
    } else if (_blockType !== 'atomic' && allowIndent && cursorIsAtFirst) {
      editor.setValue(external_braft_utils_["ContentUtils"].increaseSelectionIndent(editorState));
      return 'handled';
    }
  }

  var nextEditorState = external_braft_utils_["ContentUtils"].handleKeyCommand(editorState, command);

  if (nextEditorState) {
    editor.setValue(nextEditorState);
    return 'handled';
  }

  return 'not-handled';
};
var handlers_returnHandlers = function returnHandlers(event, editorState, editor) {
  if (editor.editorProps.handleReturn && editor.editorProps.handleReturn(event, editorState, editor) === 'handled') {
    return 'handled';
  }

  var currentBlock = external_braft_utils_["ContentUtils"].getSelectionBlock(editorState);
  var currentBlockType = currentBlock.getType();

  if (currentBlockType === 'unordered-list-item' || currentBlockType === 'ordered-list-item') {
    if (currentBlock.getLength() === 0) {
      editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionBlockType(editorState, 'unstyled'));
      return 'handled';
    }

    return 'not-handled';
  } else if (currentBlockType === 'code-block') {
    if (event.which === 13 && (event.getModifierState('Shift') || event.getModifierState('Alt') || event.getModifierState('Control'))) {
      editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionBlockType(editorState, 'unstyled'));
      return 'handled';
    }

    return 'not-handled';
  } else if (currentBlockType === 'blockquote') {
    if (event.which === 13) {
      if (event.getModifierState('Shift') || event.getModifierState('Alt') || event.getModifierState('Control')) {
        event.which = 0;
      } else {
        editor.setValue(external_draft_js_["RichUtils"].insertSoftNewline(editorState));
        return 'handled';
      }
    }
  }

  var nextEditorState = Object(external_draftjs_utils_["handleNewLine"])(editorState, event);

  if (nextEditorState) {
    editor.setValue(nextEditorState);
    return 'handled';
  }

  return 'not-handled';
};
var beforeInputHandlers = function beforeInputHandlers(chars, editorState, editor) {
  if (editor.editorProps.handleBeforeInput && editor.editorProps.handleBeforeInput(chars, editorState, editor) === 'handled') {
    return 'handled';
  }

  return 'not-handled';
};
var handlers_compositionStartHandler = function compositionStartHandler(_, editor) {
  var editorState = editor.state.editorState;
  var selectedBlocks = external_braft_utils_["ContentUtils"].getSelectedBlocks(editorState);

  if (selectedBlocks && selectedBlocks.length > 1) {
    var nextEditorState = external_draft_js_["EditorState"].push(editorState, external_draft_js_["Modifier"].removeRange(editorState.getCurrentContent(), editorState.getSelection(), 'backward'), 'remove-range');
    editor.setValue(nextEditorState);
  }
};
var handlers_dropHandlers = function dropHandlers(selectionState, dataTransfer, editor) {
  if (editor.editorProps.readOnly || editor.editorProps.disabled) {
    return 'handled';
  }

  if (window && window.__BRAFT_DRAGING__IMAGE__) {
    var nextEditorState = external_draft_js_["EditorState"].forceSelection(editor.state.editorState, selectionState);
    nextEditorState = external_braft_utils_["ContentUtils"].insertMedias(nextEditorState, [window.__BRAFT_DRAGING__IMAGE__.mediaData]);
    nextEditorState = external_braft_utils_["ContentUtils"].removeBlock(nextEditorState, window.__BRAFT_DRAGING__IMAGE__.block, nextEditorState.getSelection());
    window.__BRAFT_DRAGING__IMAGE__ = null;
    editor.lockOrUnlockEditor(true);
    editor.setValue(nextEditorState);
    return 'handled';
  } else if (!dataTransfer || !dataTransfer.getText()) {
    return 'handled';
  }

  return 'not-handled';
};
var handlers_handleFiles = function handleFiles(files, editor) {
  var _editor$constructor$d = objectSpread_default()({}, editor.constructor.defaultProps.media, editor.editorProps.media),
      pasteImage = _editor$constructor$d.pasteImage,
      validateFn = _editor$constructor$d.validateFn,
      imagePasteLimit = _editor$constructor$d.imagePasteLimit;

  pasteImage && files.slice(0, imagePasteLimit).forEach(function (file) {
    if (file && file.type.indexOf('image') > -1 && editor.braftFinder) {
      var validateResult = validateFn ? validateFn(file) : true;

      if (validateResult instanceof Promise) {
        validateResult.then(function () {
          editor.braftFinder.uploadImage(file, function (image) {
            editor.isLiving && editor.setValue(external_braft_utils_["ContentUtils"].insertMedias(editor.state.editorState, [image]));
          });
        });
      } else if (validateResult) {
        editor.braftFinder.uploadImage(file, function (image) {
          editor.isLiving && editor.setValue(external_braft_utils_["ContentUtils"].insertMedias(editor.state.editorState, [image]));
        });
      }
    }
  });

  if (files[0] && files[0].type.indexOf('image') > -1 && pasteImage) {
    return 'handled';
  }

  return 'not-handled';
};
var droppedFilesHandlers = function droppedFilesHandlers(selectionState, files, editor) {
  if (editor.editorProps.handleDroppedFiles && editor.editorProps.handleDroppedFiles(selectionState, files, editor) === 'handled') {
    return 'handled';
  }

  return handlers_handleFiles(files, editor);
};
var pastedFilesHandlers = function pastedFilesHandlers(files, editor) {
  if (editor.editorProps.handlePastedFiles && editor.editorProps.handlePastedFiles(files, editor) === 'handled') {
    return 'handled';
  }

  return handlers_handleFiles(files, editor);
};
var handlers_copyHandlers = function copyHandlers(event, editor) {
  var blockMap = getFragmentFromSelection_default()(editor.state.editorState);

  if (blockMap && blockMap.toArray) {
    try {
      var tempContentState = external_draft_js_["ContentState"].createFromBlockArray(blockMap.toArray());
      var tempEditorState = external_draft_js_["EditorState"].createWithContent(tempContentState);
      var clipboardData = event.clipboardData || window.clipboardData || event.originalEvent.clipboardData;
      tempEditorState.setConvertOptions(editor.state.editorState.convertOptions);
      clipboardData.setData('text/html', tempEditorState.toHTML());
      clipboardData.setData('text/plain', tempEditorState.toText());
      event.preventDefault();
    } catch (error) {
      console.warn(error);
    }
  }
};
var handlers_pastedTextHandlers = function pastedTextHandlers(text, html, editorState, editor) {
  if (editor.editorProps.handlePastedText && editor.editorProps.handlePastedText(text, html, editorState, editor) === 'handled') {
    return 'handled';
  }

  if (!html || editor.editorProps.stripPastedStyles) {
    return false;
  }

  var tempColors = external_braft_utils_["ColorUtils"].detectColorsFromHTMLString(html);
  editor.setState({
    tempColors: toConsumableArray_default()(editor.state.tempColors).concat(toConsumableArray_default()(tempColors)).filter(function (item) {
      return editor.editorProps.colors.indexOf(item) === -1;
    }).filter(function (item, index, array) {
      return array.indexOf(item) === index;
    })
  }, function () {
    editor.setValue(external_braft_utils_["ContentUtils"].insertHTML(editorState, html, 'paste'));
  });
  return 'handled';
};
// CONCATENATED MODULE: ./helpers/extension.js

// TODO
// - block-style和atomic类型的扩展支持

var extension_extensionControls = [];
var extension_extensionDecorators = [];
var extension_propInterceptors = [];
var extension_extensionBlockRenderMaps = [];
var extension_extensionBlockRendererFns = [];
var extensionInlineStyleMaps = [];
var extension_extensionInlineStyleFns = [];
var extensionEntities = [];
var inlineStyleImporters = [];
var inlineStyleExporters = [];
var blockImporters = [];
var blockExporters = [];

var filterByEditorId = function filterByEditorId(items, editorId) {
  if (!editorId) {
    return items.filter(function (item) {
      return !item.includeEditors;
    }).map(function (item) {
      return item.data;
    });
  }

  return items.map(function (item) {
    if (!item.includeEditors && !item.excludeEditors) {
      return item.data;
    }

    if (item.includeEditors) {
      return item.includeEditors.indexOf(editorId) !== -1 ? item.data : false;
    }

    if (item.excludeEditors) {
      return item.excludeEditors.indexOf(editorId) !== -1 ? false : item.data;
    }

    return false;
  }).filter(function (item) {
    return item;
  });
};

var getPropInterceptors = function getPropInterceptors(editorId) {
  return filterByEditorId(extension_propInterceptors, editorId);
};
var getExtensionControls = function getExtensionControls(editorId) {
  return filterByEditorId(extension_extensionControls, editorId);
};
var getExtensionDecorators = function getExtensionDecorators(editorId) {
  return filterByEditorId(extension_extensionDecorators, editorId);
};
var getExtensionBlockRenderMaps = function getExtensionBlockRenderMaps(editorId) {
  return filterByEditorId(extension_extensionBlockRenderMaps, editorId);
};
var getExtensionBlockRendererFns = function getExtensionBlockRendererFns(editorId) {
  return filterByEditorId(extension_extensionBlockRendererFns, editorId);
};
var getExtensionInlineStyleMap = function getExtensionInlineStyleMap(editorId) {
  var inlineStyleMap = {};
  filterByEditorId(extensionInlineStyleMaps, editorId).forEach(function (item) {
    inlineStyleMap[item.inlineStyleName] = item.styleMap;
  });
  return inlineStyleMap;
};
var getExtensionInlineStyleFns = function getExtensionInlineStyleFns(editorId) {
  return filterByEditorId(extension_extensionInlineStyleFns, editorId);
};
var compositeStyleImportFn = function compositeStyleImportFn(styleImportFn, editorId) {
  return function (nodeName, node, style) {
    filterByEditorId(inlineStyleImporters, editorId).forEach(function (styleImporter) {
      if (styleImporter.importer && styleImporter.importer(nodeName, node)) {
        style = style.add(styleImporter.inlineStyleName);
      }
    });
    return styleImportFn ? styleImportFn(nodeName, node, style) : style;
  };
};
var compositeStyleExportFn = function compositeStyleExportFn(styleExportFn, editorId) {
  return function (style) {
    style = style.toUpperCase();
    var result = styleExportFn ? styleExportFn(style) : undefined;

    if (result) {
      return result;
    }

    filterByEditorId(inlineStyleExporters, editorId).find(function (item) {
      if (item.inlineStyleName === style) {
        result = item.exporter;
        return true;
      }
    });
    return result;
  };
};
var compositeEntityImportFn = function compositeEntityImportFn(entityImportFn, editorId) {
  return function (nodeName, node, createEntity, source) {
    var result = entityImportFn ? entityImportFn(nodeName, node, createEntity, source) : null;

    if (result) {
      return result;
    }

    filterByEditorId(extensionEntities, editorId).find(function (entityItem) {
      var matched = entityItem.importer ? entityItem.importer(nodeName, node, source) : null;
      matched && (result = createEntity(entityItem.entityType, matched.mutability || 'MUTABLE', matched.data || {}));
      return !!matched;
    });
    return result;
  };
};
var compositeEntityExportFn = function compositeEntityExportFn(entityExportFn, editorId) {
  return function (entity, originalText) {
    var result = entityExportFn ? entityExportFn(entity, originalText) : undefined;

    if (result) {
      return result;
    }

    var entityType = entity.type.toUpperCase();
    filterByEditorId(extensionEntities, editorId).find(function (entityItem) {
      if (entityItem.entityType === entityType) {
        result = entityItem.exporter ? entityItem.exporter(entity, originalText) : undefined;
        return true;
      }
    });
    return result;
  };
};
var compositeBlockImportFn = function compositeBlockImportFn(blockImportFn, editorId) {
  return function (nodeName, node, source) {
    var result = blockImportFn ? blockImportFn(nodeName, node, source) : null;

    if (result) {
      return result;
    }

    filterByEditorId(blockImporters, editorId).find(function (blockImporter) {
      var matched = blockImporter.importer ? blockImporter.importer(nodeName, node, source) : undefined;
      matched && (result = matched);
      return !!matched;
    });
    return result;
  };
};
var compositeBlockExportFn = function compositeBlockExportFn(blockExportFn, editorId) {
  return function (contentState, block) {
    var result = blockExportFn ? blockExportFn(contentState, block) : null;

    if (result) {
      return result;
    }

    filterByEditorId(blockExporters, editorId).find(function (blockExporter) {
      var matched = blockExporter.exporter ? blockExporter.exporter(contentState, block) : undefined;
      matched && (result = matched);
      return !!matched;
    });
    return result;
  };
};

var extension_useExtension = function useExtension(extension) {
  if (extension instanceof Array) {
    extension.forEach(useExtension);
    return false;
  }

  if (!extension || !extension.type || typeof extension.type !== 'string') {
    return false;
  }

  var includeEditors = extension.includeEditors,
      excludeEditors = extension.excludeEditors;

  if (extension.type === 'control') {
    extension_extensionControls.push({
      includeEditors: includeEditors,
      excludeEditors: excludeEditors,
      data: extension.control
    });
  } else if (extension.type === 'inline-style') {
    var inlineStyleName = extension.name.toUpperCase();

    if (extension.control) {
      extension_extensionControls.push({
        includeEditors: includeEditors,
        excludeEditors: excludeEditors,
        data: objectSpread_default()({
          key: inlineStyleName,
          type: 'inline-style',
          command: inlineStyleName
        }, extension.control)
      });
    }

    if (extension.style) {
      extensionInlineStyleMaps.push({
        includeEditors: includeEditors,
        excludeEditors: excludeEditors,
        data: {
          inlineStyleName: inlineStyleName,
          styleMap: extension.style
        }
      });
    }

    if (extension.styleFn) {
      extension_extensionInlineStyleFns.push({
        includeEditors: includeEditors,
        excludeEditors: excludeEditors,
        data: {
          inlineStyleName: inlineStyleName,
          styleFn: extension.styleFn
        }
      });
    }

    if (extension.importer) {
      inlineStyleImporters.push({
        includeEditors: includeEditors,
        excludeEditors: excludeEditors,
        data: {
          inlineStyleName: inlineStyleName,
          importer: extension.importer
        }
      });
    }

    inlineStyleExporters.push({
      includeEditors: includeEditors,
      excludeEditors: excludeEditors,
      data: {
        inlineStyleName: inlineStyleName,
        exporter: extension.exporter ? extension.exporter(extension) : external_react_default.a.createElement("span", {
          style: extension.style
        })
      }
    });
  } else if (extension.type === 'block-style') ; else if (extension.type === 'entity') {
    var entityType = extension.name.toUpperCase();

    if (extension.control) {
      extension_extensionControls.push({
        includeEditors: includeEditors,
        excludeEditors: excludeEditors,
        data: typeof extension.control === 'function' ? extension.control : objectSpread_default()({
          key: entityType,
          type: 'entity',
          command: entityType,
          data: {
            mutability: extension.mutability || 'MUTABLE',
            data: extension.data || {}
          }
        }, extension.control)
      });
    }

    extensionEntities.push({
      includeEditors: includeEditors,
      excludeEditors: excludeEditors,
      data: {
        entityType: entityType,
        importer: extension.importer,
        exporter: extension.exporter
      }
    });
    extension_extensionDecorators.push({
      includeEditors: includeEditors,
      excludeEditors: excludeEditors,
      data: {
        type: 'entity',
        decorator: {
          key: entityType,
          component: extension.component
        }
      }
    });
  } else if (extension.type === 'block') {
    var blockType = extension.name;

    if (extension.renderMap) {
      extension_extensionBlockRenderMaps.push({
        includeEditors: includeEditors,
        excludeEditors: excludeEditors,
        data: {
          blockType: blockType,
          renderMap: extension.renderMap
        }
      });
    }

    if (extension.rendererFn) {
      extension_extensionBlockRendererFns.push({
        includeEditors: includeEditors,
        excludeEditors: excludeEditors,
        data: {
          blockType: blockType,
          rendererFn: extension.rendererFn
        }
      });
    }

    if (extension.importer) {
      blockImporters.push({
        includeEditors: includeEditors,
        excludeEditors: excludeEditors,
        data: {
          blockType: blockType,
          importer: extension.importer
        }
      });
    }

    if (extension.exporter) {
      blockExporters.push({
        includeEditors: includeEditors,
        excludeEditors: excludeEditors,
        data: {
          blockType: blockType,
          exporter: extension.exporter
        }
      });
    }
  } else if (extension.type === 'atomic') ; else if (extension.type === 'decorator') {
    var decorator = extension.decorator;

    if (decorator && decorator.strategy && decorator.component) {
      extension_extensionDecorators.push({
        includeEditors: includeEditors,
        excludeEditors: excludeEditors,
        data: {
          type: 'strategy',
          decorator: decorator
        }
      });
    } else if (decorator && decorator.getDecorations) {
      extension_extensionDecorators.push({
        includeEditors: includeEditors,
        excludeEditors: excludeEditors,
        data: {
          type: 'class',
          decorator: decorator
        }
      });
    }
  } else if (extension.type === 'prop-interception') {
    extension_propInterceptors.push({
      includeEditors: includeEditors,
      excludeEditors: excludeEditors,
      data: extension.interceptor
    });
  }
};

var createExtensibleEditor = function createExtensibleEditor(BraftEditor) {
  BraftEditor.use = extension_useExtension;
  return BraftEditor;
};
// CONCATENATED MODULE: ./renderers/block/blockRenderMap.js




/* harmony default export */ var block_blockRenderMap = (function (props, blockRenderMap) {
  var customBlockRenderMap = Object(external_immutable_["Map"])({
    'atomic': {
      element: ''
    },
    'code-block': {
      element: 'code',
      wrapper: external_react_default.a.createElement("pre", {
        className: "braft-code-block"
      })
    }
  });

  try {
    var extensionBlockRenderMaps = getExtensionBlockRenderMaps(props.editorId);
    customBlockRenderMap = extensionBlockRenderMaps.reduce(function (customBlockRenderMap, item) {
      return customBlockRenderMap.merge(typeof item.renderMap === 'function' ? item.renderMap(props) : item.renderMap);
    }, customBlockRenderMap);

    if (blockRenderMap) {
      if (typeof blockRenderMap === 'function') {
        customBlockRenderMap = customBlockRenderMap.merge(blockRenderMap(props));
      } else {
        customBlockRenderMap = customBlockRenderMap.merge(blockRenderMap);
      }
    }

    customBlockRenderMap = external_draft_js_["DefaultDraftBlockRenderMap"].merge(customBlockRenderMap);
  } catch (error) {
    console.warn(error);
  }

  return customBlockRenderMap;
});
// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/extends.js
var helpers_extends = __webpack_require__(11);
var extends_default = /*#__PURE__*/__webpack_require__.n(helpers_extends);

// EXTERNAL MODULE: ../node_modules/@babel/runtime/helpers/slicedToArray.js
var slicedToArray = __webpack_require__(24);
var slicedToArray_default = /*#__PURE__*/__webpack_require__.n(slicedToArray);

// EXTERNAL MODULE: ./renderers/atomics/Image/style.scss
var Image_style = __webpack_require__(45);

// EXTERNAL MODULE: ./components/common/Switch/style.scss
var Switch_style = __webpack_require__(46);

// CONCATENATED MODULE: ./components/common/Switch/index.jsx


/* harmony default export */ var Switch = (function (props) {
  var active = props.active,
      _onClick = props.onClick,
      className = props.className;
  return external_react_default.a.createElement("div", {
    onClick: function onClick() {
      return _onClick();
    },
    className: 'bf-switch ' + className + (active ? ' active' : '')
  });
});
// CONCATENATED MODULE: ./configs/controls.js

/* harmony default export */ var configs_controls = (function (lang, editor) {
  return [{
    key: 'undo',
    title: lang.controls.undo,
    text: external_react_default.a.createElement("i", {
      className: "bfi-undo"
    }),
    type: 'editor-method',
    command: 'undo'
  }, {
    key: 'redo',
    title: lang.controls.redo,
    text: external_react_default.a.createElement("i", {
      className: "bfi-redo"
    }),
    type: 'editor-method',
    command: 'redo'
  }, {
    key: 'remove-styles',
    title: lang.controls.removeStyles,
    text: external_react_default.a.createElement("i", {
      className: "bfi-format_clear"
    }),
    type: 'editor-method',
    command: 'removeSelectionInlineStyles'
  }, {
    key: 'hr',
    title: lang.controls.hr,
    text: external_react_default.a.createElement("i", {
      className: "bfi-hr"
    }),
    type: 'editor-method',
    command: 'insertHorizontalLine'
  }, {
    key: 'bold',
    title: lang.controls.bold,
    text: external_react_default.a.createElement("i", {
      className: "bfi-bold"
    }),
    type: 'inline-style',
    command: 'bold'
  }, {
    key: 'italic',
    title: lang.controls.italic,
    text: external_react_default.a.createElement("i", {
      className: "bfi-italic"
    }),
    type: 'inline-style',
    command: 'italic'
  }, {
    key: 'underline',
    title: lang.controls.underline,
    text: external_react_default.a.createElement("i", {
      className: "bfi-underlined"
    }),
    type: 'inline-style',
    command: 'underline'
  }, {
    key: 'strike-through',
    title: lang.controls.strikeThrough,
    text: external_react_default.a.createElement("i", {
      className: "bfi-strikethrough"
    }),
    type: 'inline-style',
    command: 'strikethrough'
  }, {
    key: 'superscript',
    title: lang.controls.superScript,
    text: external_react_default.a.createElement("i", {
      className: "bfi-superscript"
    }),
    type: 'inline-style',
    command: 'superscript'
  }, {
    key: 'subscript',
    title: lang.controls.subScript,
    text: external_react_default.a.createElement("i", {
      className: "bfi-subscript"
    }),
    type: 'inline-style',
    command: 'subscript'
  }, {
    key: 'headings',
    title: lang.controls.headings,
    type: 'headings'
  }, {
    key: 'blockquote',
    title: lang.controls.blockQuote,
    text: external_react_default.a.createElement("i", {
      className: "bfi-quote"
    }),
    type: 'block-type',
    command: 'blockquote'
  }, {
    key: 'code',
    title: lang.controls.code,
    text: external_react_default.a.createElement("i", {
      className: "bfi-code"
    }),
    type: 'block-type',
    command: 'code-block'
  }, {
    key: 'list-ul',
    title: lang.controls.unorderedList,
    text: external_react_default.a.createElement("i", {
      className: "bfi-list"
    }),
    type: 'block-type',
    command: 'unordered-list-item'
  }, {
    key: 'list-ol',
    title: lang.controls.orderedList,
    text: external_react_default.a.createElement("i", {
      className: "bfi-list-numbered"
    }),
    type: 'block-type',
    command: 'ordered-list-item'
  }, {
    key: 'link',
    title: lang.controls.link,
    type: 'link'
  }, {
    key: 'text-color',
    title: lang.controls.color,
    type: 'text-color'
  }, {
    key: 'line-height',
    title: lang.controls.lineHeight,
    type: 'line-height'
  }, {
    key: 'letter-spacing',
    title: lang.controls.letterSpacing,
    type: 'letter-spacing'
  }, {
    key: 'text-indent',
    title: lang.controls.textIndent,
    type: 'text-indent'
  }, {
    key: 'font-size',
    title: lang.controls.fontSize,
    type: 'font-size'
  }, {
    key: 'font-family',
    title: lang.controls.fontFamily,
    type: 'font-family'
  }, {
    key: 'text-align',
    title: lang.controls.textAlign,
    type: 'text-align'
  }, {
    key: 'media',
    title: lang.controls.media,
    text: external_react_default.a.createElement("i", {
      className: "bfi-media"
    }),
    type: 'media'
  }, {
    key: 'emoji',
    title: lang.controls.emoji,
    text: external_react_default.a.createElement("i", {
      className: "bfi-emoji"
    }),
    type: 'emoji'
  }, {
    key: 'clear',
    title: lang.controls.clear,
    text: external_react_default.a.createElement("i", {
      className: "bfi-clear_all"
    }),
    type: 'editor-method',
    command: 'clearEditorContent'
  }, {
    key: 'fullscreen',
    title: editor.state.isFullscreen ? lang.controls.exitFullscreen : lang.controls.fullscreen,
    text: external_react_default.a.createElement("i", {
      className: editor.state.isFullscreen ? 'bfi-fullscreen-exit' : 'bfi-fullscreen'
    }),
    type: 'editor-method',
    command: 'toggleFullscreen'
  }, {
    key: 'modal',
    type: 'modal'
  }, {
    key: 'button',
    type: 'button'
  }, {
    key: 'dropdown',
    type: 'dropdown'
  }, {
    key: 'component',
    type: 'component'
  }];
});
var imageControlItems = {
  'float-left': {
    text: external_react_default.a.createElement("span", {
      "data-float": "left"
    }, "\uE91E"),
    command: 'setImageFloat|left'
  },
  'float-right': {
    text: external_react_default.a.createElement("span", {
      "data-float": "right"
    }, "\uE914"),
    command: 'setImageFloat|right'
  },
  'align-left': {
    text: external_react_default.a.createElement("span", {
      "data-align": "left"
    }, "\uE027"),
    command: 'setImageAlignment|left'
  },
  'align-center': {
    text: external_react_default.a.createElement("span", {
      "data-align": "center"
    }, "\uE028"),
    command: 'setImageAlignment|center'
  },
  'align-right': {
    text: external_react_default.a.createElement("span", {
      "data-align": "right"
    }, "\uE029"),
    command: 'setImageAlignment|right'
  },
  'size': {
    text: external_react_default.a.createElement("span", null, "\uE3C2"),
    command: 'toggleSizeEditor'
  },
  'link': {
    text: external_react_default.a.createElement("span", null, "\uE91A"),
    command: 'toggleLinkEditor'
  },
  'remove': {
    text: external_react_default.a.createElement("span", null, "\uE9AC"),
    command: 'removeImage'
  }
};
// CONCATENATED MODULE: ./renderers/atomics/Image/index.jsx
















var Image_Image =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(Image, _React$Component);

  function Image() {
    var _getPrototypeOf2;

    var _this;

    classCallCheck_default()(this, Image);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = possibleConstructorReturn_default()(this, (_getPrototypeOf2 = getPrototypeOf_default()(Image)).call.apply(_getPrototypeOf2, [this].concat(args)));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "state", {
      toolbarVisible: false,
      toolbarOffset: 0,
      linkEditorVisible: false,
      sizeEditorVisible: false,
      tempLink: null,
      tempWidth: null,
      tempHeight: null
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "initialLeft", void 0);

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "initialTop", void 0);

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "initialWidth", void 0);

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "initialHeight", void 0);

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "reSizeType", void 0);

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "changeSize", function (e) {
      var type = _this.reSizeType;

      if (!_this.initialLeft) {
        _this.initialLeft = e.screenX;
        _this.initialTop = e.screenY;
      }

      if (type === 'rightbottom') {
        _this.initialHeight += e.screenY - _this.initialTop;
        _this.initialWidth += e.screenX - _this.initialLeft;
      }

      if (type === 'leftbottom') {
        _this.initialHeight += e.screenY - _this.initialTop;
        _this.initialWidth += -e.screenX + _this.initialLeft;
      }

      _this.initialLeft = e.screenX;
      _this.initialTop = e.screenY;
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "moveImage", function (e) {
      _this.changeSize(e);

      _this.setState({
        tempWidth: Math.abs(_this.initialWidth),
        tempHeight: Math.abs(_this.initialHeight)
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "upImage", function () {
      _this.confirmImageSize();

      document.removeEventListener('mousemove', _this.moveImage);
      document.removeEventListener('mouseup', _this.upImage);
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "repareChangeSize", function (type) {
      return function (e) {
        _this.reSizeType = type;

        var imageRect = _this.imageElement.getBoundingClientRect();

        _this.initialLeft = _this.initialTop = 0;
        _this.initialWidth = imageRect.width;
        _this.initialHeight = imageRect.height;
        e.preventDefault();
        document.addEventListener('mousemove', _this.moveImage);
        document.addEventListener('mouseup', _this.upImage);
      };
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "preventDragEvent", function (event) {
      event.stopPropagation();
      event.preventDefault();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleDragStart", function () {
      if (_this.props.editor.editorProps.readOnly || _this.props.editor.editorProps.disabled) {
        return false;
      }

      window.__BRAFT_DRAGING__IMAGE__ = {
        block: _this.props.block,
        mediaData: objectSpread_default()({
          type: 'IMAGE'
        }, _this.props.mediaData)
      };

      _this.setState({
        toolbarVisible: false
      }, function () {
        _this.unlockEditor();
      });

      return true;
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleDragEnd", function () {
      window.__BRAFT_DRAGING__IMAGE__ = null;
      return false;
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "executeCommand", function (command) {
      if (typeof command === 'string') {
        var _command$split = command.split('|'),
            _command$split2 = slicedToArray_default()(_command$split, 2),
            method = _command$split2[0],
            param = _command$split2[1];

        _this[method] && _this[method](param);
      } else if (typeof command === 'function') {
        command(_this.props.block, _this.props.mediaData, _this.props.editor.getValue());
      }
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "removeImage", function () {
      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].removeBlock(_this.props.editor.getValue(), _this.props.block));

      _this.unlockEditor();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "toggleLinkEditor", function () {
      _this.setState({
        linkEditorVisible: !_this.state.linkEditorVisible,
        sizeEditorVisible: false
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "toggleSizeEditor", function () {
      _this.setState({
        linkEditorVisible: false,
        sizeEditorVisible: !_this.state.sizeEditorVisible
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleLinkInputKeyDown", function (e) {
      if (e.keyCode === 13) {
        _this.confirmImageLink();
      } else {
        return;
      }
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "setImageLink", function (e) {
      _this.setState({
        tempLink: e.currentTarget.value
      });

      return;
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "confirmImageLink", function () {
      var link = _this.state.tempLink;

      var hookReturns = _this.props.hooks('set-image-link', link)(link);

      if (hookReturns === false) {
        return false;
      }

      if (typeof hookReturns === 'string') {
        link = hookReturns;
      }

      if (link !== null) {
        _this.props.editor.setValue(external_braft_utils_["ContentUtils"].setMediaData(_this.props.editor.getValue(), _this.props.entityKey, {
          link: link
        }));

        window.setImmediate(_this.props.editor.forceRender);
      }
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleSizeInputKeyDown", function (e) {
      if (e.keyCode === 13) {
        _this.confirmImageSize();
      } else {
        return;
      }
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "setImageWidth", function (_ref) {
      var currentTarget = _ref.currentTarget;
      var value = currentTarget.value;
      value && !isNaN(value) && (value = value + 'px');

      _this.setState({
        tempWidth: value
      });

      return;
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "setImageHeight", function (_ref2) {
      var currentTarget = _ref2.currentTarget;
      var value = currentTarget.value;
      value && !isNaN(value) && (value = value + 'px');

      _this.setState({
        tempHeight: value
      });

      return;
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "confirmImageSize", function () {
      var _this$state = _this.state,
          width = _this$state.tempWidth,
          height = _this$state.tempHeight;
      var newImageSize = {};
      width !== null && (newImageSize.width = width);
      height !== null && (newImageSize.height = height);

      var hookReturns = _this.props.hooks('set-image-size', newImageSize)(newImageSize);

      if (hookReturns === false) {
        return false;
      }

      if (hookReturns && (hookReturns.width || hookReturns.height)) {
        newImageSize = hookReturns;
      }

      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].setMediaData(_this.props.editor.getValue(), _this.props.entityKey, newImageSize));

      window.setImmediate(_this.props.editor.forceRender);
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "setImageFloat", function (float) {
      var hookReturns = _this.props.hooks('set-image-float', float)(float);

      if (hookReturns === false) {
        return false;
      }

      if (typeof hookReturns === 'string') {
        float = hookReturns;
      }

      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].setMediaPosition(_this.props.editor.getValue(), _this.props.block, {
        float: float
      }));

      _this.unlockEditor();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "setImageAlignment", function (alignment) {
      var hookReturns = _this.props.hooks('set-image-alignment', alignment)(alignment);

      if (hookReturns === false) {
        return false;
      }

      if (typeof hookReturns === 'string') {
        alignment = hookReturns;
      }

      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].setMediaPosition(_this.props.editor.getValue(), _this.props.block, {
        alignment: alignment
      }));

      _this.unlockEditor();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "showToolbar", function (event) {
      if (_this.props.editor.editorProps.readOnly || _this.props.editor.editorProps.disabled) {
        return false;
      }

      event.preventDefault();

      if (!_this.state.toolbarVisible) {
        _this.setState({
          toolbarVisible: true
        }, function () {
          _this.lockEditor();

          _this.setState({
            toolbarOffset: _this.calcToolbarOffset()
          });
        });
      }
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "hideToolbar", function (event) {
      event.preventDefault();

      _this.setState({
        toolbarVisible: false
      }, function () {
        _this.unlockEditor(); // this.props.editor.requestFocus()

      });
    });

    return _this;
  }

  createClass_default()(Image, [{
    key: "render",
    value: function render() {
      var _this2 = this;

      var _this$props = this.props,
          mediaData = _this$props.mediaData,
          language = _this$props.language,
          imageControls = _this$props.imageControls,
          imageResizable = _this$props.imageResizable;
      var _this$state2 = this.state,
          toolbarVisible = _this$state2.toolbarVisible,
          toolbarOffset = _this$state2.toolbarOffset,
          linkEditorVisible = _this$state2.linkEditorVisible,
          sizeEditorVisible = _this$state2.sizeEditorVisible,
          tempWidth = _this$state2.tempWidth,
          tempHeight = _this$state2.tempHeight;
      var blockData = this.props.block.getData();
      var float = blockData.get('float');
      var alignment = blockData.get('alignment');
      var url = mediaData.url,
          link = mediaData.link,
          link_target = mediaData.link_target,
          width = mediaData.width,
          height = mediaData.height,
          meta = mediaData.meta;
      var imageStyles = {};
      var clearFix = false;

      if (float) {
        alignment = null;
      } else if (alignment === 'left') {
        imageStyles.float = 'left';
        clearFix = true;
      } else if (alignment === 'right') {
        imageStyles.float = 'right';
        clearFix = true;
      } else if (alignment === 'center') {
        imageStyles.textAlign = 'center';
      } else {
        imageStyles.float = 'left';
        clearFix = true;
      }

      var renderedControlItems = imageControls.map(function (item, index) {
        if (typeof item === 'string' && imageControlItems[item]) {
          return external_react_default.a.createElement("a", {
            className: item === 'link' && link ? 'active' : '',
            key: index,
            onClick: function onClick() {
              return _this2.executeCommand(imageControlItems[item].command);
            }
          }, imageControlItems[item].text);
        } else if (item && (item.render || item.text)) {
          return item.render ? item.render(mediaData, _this2.props.block) : external_react_default.a.createElement("a", {
            key: index,
            onClick: function onClick() {
              return item.onClick && _this2.executeCommand(item.onClick);
            }
          }, item.text);
        } else {
          return null;
        }
      });
      return external_react_default.a.createElement("div", {
        className: "bf-media"
      }, external_react_default.a.createElement("div", {
        style: imageStyles,
        draggable: true,
        onMouseEnter: this.showToolbar,
        onMouseMove: this.showToolbar,
        onMouseLeave: this.hideToolbar,
        onDragStart: this.handleDragStart,
        onDragEnd: this.handleDragEnd,
        ref: function ref(instance) {
          return _this2.mediaEmbederInstance = instance;
        },
        className: "bf-image"
      }, toolbarVisible ? external_react_default.a.createElement("div", {
        style: {
          marginLeft: toolbarOffset
        },
        ref: function ref(instance) {
          return _this2.toolbarElement = instance;
        },
        "data-float": float,
        "data-align": alignment,
        className: "bf-media-toolbar"
      }, linkEditorVisible ? external_react_default.a.createElement("div", {
        className: "bf-image-link-editor"
      }, external_react_default.a.createElement("div", {
        className: "editor-input-group"
      }, external_react_default.a.createElement("input", {
        type: "text",
        placeholder: language.linkEditor.inputWithEnterPlaceHolder,
        onKeyDown: this.handleLinkInputKeyDown,
        onChange: this.setImageLink,
        defaultValue: link
      }), external_react_default.a.createElement("button", {
        type: "button",
        onClick: this.confirmImageLink
      }, language.base.confirm)), external_react_default.a.createElement("div", {
        className: "switch-group"
      }, external_react_default.a.createElement(Switch, {
        active: link_target === '_blank',
        onClick: function onClick() {
          return _this2.setImageLinkTarget(link_target);
        }
      }), external_react_default.a.createElement("label", null, language.linkEditor.openInNewWindow))) : null, sizeEditorVisible ? external_react_default.a.createElement("div", {
        className: "bf-image-size-editor"
      }, external_react_default.a.createElement("div", {
        className: "editor-input-group"
      }, external_react_default.a.createElement("input", {
        type: "text",
        placeholder: language.base.width,
        onKeyDown: this.handleSizeInputKeyDown,
        onChange: this.setImageWidth,
        defaultValue: width
      }), external_react_default.a.createElement("input", {
        type: "text",
        placeholder: language.base.height,
        onKeyDown: this.handleSizeInputKeyDown,
        onChange: this.setImageHeight,
        defaultValue: height
      }), external_react_default.a.createElement("button", {
        type: "button",
        onClick: this.confirmImageSize
      }, language.base.confirm))) : null, renderedControlItems, external_react_default.a.createElement("i", {
        style: {
          marginLeft: toolbarOffset * -1
        },
        className: "bf-media-toolbar-arrow"
      })) : null, external_react_default.a.createElement("div", {
        style: {
          position: 'relative',
          width: "".concat(width, "px"),
          height: "".concat(height, "px"),
          display: 'inline-block'
        }
      }, external_react_default.a.createElement("img", extends_default()({
        ref: function ref(instance) {
          return _this2.imageElement = instance;
        },
        src: url,
        width: width,
        height: height
      }, meta)), toolbarVisible && imageResizable ? external_react_default.a.createElement("div", {
        className: "bf-csize-icon right-bottom",
        onMouseDown: this.repareChangeSize('rightbottom')
      }) : null, toolbarVisible && imageResizable ? external_react_default.a.createElement("div", {
        className: "bf-csize-icon left-bottom",
        onMouseDown: this.repareChangeSize('leftbottom')
      }) : null, external_react_default.a.createElement("div", {
        className: "bf-pre-csize ".concat(this.reSizeType),
        style: {
          width: "".concat(tempWidth, "px"),
          height: "".concat(tempHeight, "px")
        }
      }))), clearFix && external_react_default.a.createElement("div", {
        className: "clearfix",
        style: {
          clear: 'both',
          height: 0,
          lineHeight: 0,
          float: 'none'
        }
      }));
    }
  }, {
    key: "lockEditor",
    value: function lockEditor() {
      this.props.editor.lockOrUnlockEditor(true);
    }
  }, {
    key: "unlockEditor",
    value: function unlockEditor() {
      this.props.editor.lockOrUnlockEditor(false);
    }
  }, {
    key: "calcToolbarOffset",
    value: function calcToolbarOffset() {
      var _this$props2 = this.props,
          getContainerNode = _this$props2.getContainerNode,
          containerNode = _this$props2.containerNode;
      var container = getContainerNode ? getContainerNode() : containerNode;

      if (!container) {
        return 0;
      }

      var viewRect = container.querySelector('.bf-content').getBoundingClientRect();
      var toolbarRect = this.toolbarElement.getBoundingClientRect();
      var imageRect = this.imageElement.getBoundingClientRect();
      var right = viewRect.right - (imageRect.right - imageRect.width / 2 + toolbarRect.width / 2);
      var left = imageRect.left + imageRect.width / 2 - toolbarRect.width / 2 - viewRect.left;

      if (right < 10) {
        return right - 10;
      } else if (left < 10) {
        return left * -1 + 10;
      } else {
        return 0;
      }
    }
  }, {
    key: "setImageLinkTarget",
    value: function setImageLinkTarget(link_target) {
      var hookReturns = this.props.hooks('set-image-link-target', link_target)(link_target);

      if (hookReturns === false) {
        return false;
      }

      if (typeof hookReturns === 'string') {
        link_target = hookReturns;
      }

      link_target = link_target === '_blank' ? '' : '_blank';
      this.props.editor.setValue(external_braft_utils_["ContentUtils"].setMediaData(this.props.editor.getValue(), this.props.entityKey, {
        link_target: link_target
      }));
      window.setImmediate(this.props.editor.forceRender);
    }
  }]);

  return Image;
}(external_react_default.a.Component);


// EXTERNAL MODULE: ./renderers/atomics/Video/style.scss
var Video_style = __webpack_require__(47);

// EXTERNAL MODULE: ./components/common/Modal/style.scss
var Modal_style = __webpack_require__(48);

// EXTERNAL MODULE: external "react-dom"
var external_react_dom_ = __webpack_require__(16);
var external_react_dom_default = /*#__PURE__*/__webpack_require__.n(external_react_dom_);

// CONCATENATED MODULE: ./components/common/Modal/index.jsx














var Modal_Modal =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(Modal, _React$Component);

  function Modal(props) {
    var _this;

    classCallCheck_default()(this, Modal);

    _this = possibleConstructorReturn_default()(this, getPrototypeOf_default()(Modal).call(this, props));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleTransitionEnd", function () {
      if (!_this.rootElement || !_this.rootElement.classList) {
        return false;
      }

      if (!_this.rootElement.classList.contains('active')) {
        external_react_dom_default.a.unmountComponentAtNode(_this.rootElement) && _this.rootElement.parentNode.removeChild(_this.rootElement);
      }
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleMouseDown", function (event) {
      var tagName = event.target.tagName.toLowerCase();

      if (tagName === 'input' || tagName === 'textarea') {
        return false;
      }

      event.preventDefault();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleCancel", function () {
      _this.props.closeOnCancel && _this.close();
      _this.props.onCancel && _this.props.onCancel();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleConfirm", function () {
      _this.props.closeOnConfirm && _this.close();
      _this.props.onConfirm && _this.props.onConfirm();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleMaskClick", function () {
      _this.props.closeOnBlur && _this.close();
      _this.props.onBlue && _this.props.onBlue();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "close", function () {
      _this.unrenderComponent();

      _this.props.onClose && _this.props.onClose();
    });

    _this.active = false;
    _this.componentId = 'BRAFT-MODAL-' + external_braft_utils_["BaseUtils"].UniqueIndex();
    return _this;
  }

  createClass_default()(Modal, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      if (this.props.visible) {
        this.active = true;
        this.renderComponent(this.props);
      }
    }
  }, {
    key: "componentWillReceiveProps",
    value: function componentWillReceiveProps(next) {
      if (this.props.visible && !next.visible) {
        this.unrenderComponent();
      } else if (this.props.visible || next.visible) {
        this.active = true;
        this.renderComponent(next);
      }
    }
  }, {
    key: "render",
    value: function render() {
      return null;
    }
  }, {
    key: "unrenderComponent",
    value: function unrenderComponent() {
      this.active = false;
      this.activeId && window.clearImmediate(this.activeId);

      if (this.rootElement && this.rootElement.classList) {
        this.rootElement.classList.remove('active');
      }
    }
  }, {
    key: "renderComponent",
    value: function renderComponent(props) {
      var _this2 = this;

      if (!this.active) {
        return false;
      }

      var title = props.title,
          className = props.className,
          width = props.width,
          height = props.height,
          children = props.children,
          component = props.component,
          confirmable = props.confirmable,
          showFooter = props.showFooter,
          showCancel = props.showCancel,
          showConfirm = props.showConfirm,
          showClose = props.showClose,
          cancelText = props.cancelText,
          confirmText = props.confirmText,
          bottomText = props.bottomText,
          language = props.language;
      typeof showCancel === 'undefined' && (showCancel = true);
      typeof showClose === 'undefined' && (showClose = true);
      typeof showConfirm === 'undefined' && (showConfirm = true);
      typeof showFooter === 'undefined' && (showFooter = true);
      var childComponent = external_react_default.a.createElement("div", {
        onMouseDown: this.handleMouseDown,
        className: 'bf-modal ' + (className || '')
      }, external_react_default.a.createElement("div", {
        className: "bf-modal-mask",
        onClick: this.handleMaskClick
      }), external_react_default.a.createElement("div", {
        onTransitionEnd: this.handleTransitionEnd,
        style: {
          width: width,
          height: height
        },
        className: "bf-modal-content"
      }, external_react_default.a.createElement("div", {
        className: "bf-modal-header"
      }, external_react_default.a.createElement("h3", {
        className: "bf-modal-caption"
      }, title), showClose && external_react_default.a.createElement("button", {
        type: "button",
        onClick: this.close,
        className: "bf-modal-close-button"
      }, external_react_default.a.createElement("i", {
        className: "bfi-close"
      }))), external_react_default.a.createElement("div", {
        className: "bf-modal-body"
      }, children || component), showFooter ? external_react_default.a.createElement("div", {
        className: "bf-modal-footer"
      }, external_react_default.a.createElement("div", {
        className: "bf-modal-addon-text"
      }, bottomText), external_react_default.a.createElement("div", {
        className: "bf-modal-buttons"
      }, showCancel && external_react_default.a.createElement("button", {
        type: "button",
        onClick: this.handleCancel,
        className: "bf-modal-cancel"
      }, cancelText || language.base.cancel), showConfirm && external_react_default.a.createElement("button", {
        type: "button",
        onClick: this.handleConfirm,
        className: 'bf-modal-confirm ' + (!confirmable ? 'disabled' : '')
      }, confirmText || language.base.confirm))) : null));
      this.rootElement = document.querySelector('#' + this.componentId);

      if (!this.rootElement) {
        this.rootElement = document.createElement('div');
        this.rootElement.id = this.componentId;
        this.rootElement.className = 'bf-modal-root';
        document.body.appendChild(this.rootElement);
      }

      external_react_dom_default.a.render(childComponent, this.rootElement);
      this.activeId = window.setImmediate(function () {
        _this2.rootElement.classList.add('active');
      });
    }
  }]);

  return Modal;
}(external_react_default.a.Component);

defineProperty_default()(Modal_Modal, "defaultProps", {
  showFooter: true,
  closeOnBlur: true
});


var Modal_showModal = function showModal(props) {
  var hostNode = document.createElement('div');
  hostNode.style.display = 'none';
  document.body.appendChild(hostNode);
  props = objectSpread_default()({
    visible: true,
    closeOnConfirm: true,
    closeOnCancel: true
  }, props);

  var close = function close() {
    external_react_dom_default.a.unmountComponentAtNode(hostNode) && hostNode.parentNode.removeChild(hostNode);
  };

  var onConfirm = function onConfirm() {
    props.onConfirm && props.onConfirm();
  };

  var onCancel = function onCancel() {
    props.onCancel && props.onCancel();
  };

  var onClose = function onClose() {
    close();
    props.onClose && props.onClose();
  };

  var modalInstance = external_react_dom_default.a.render(external_react_default.a.createElement(Modal_Modal, extends_default()({}, props, {
    onConfirm: onConfirm,
    onCancel: onCancel,
    onClose: onClose
  })), hostNode);
  modalInstance.destroy = close;
  modalInstance.update = modalInstance.renderComponent;
  return modalInstance;
};
// EXTERNAL MODULE: ./components/business/PlayerModal/style.scss
var PlayerModal_style = __webpack_require__(49);

// CONCATENATED MODULE: ./components/business/PlayerModal/index.jsx




var PlayerModal_playViaModal = function playViaModal(title, component, language) {
  return Modal_showModal({
    title: title,
    component: component,
    language: language,
    showFooter: false
  });
};

var typeIconsMap = {
  'video': 'bfi-film',
  'audio': 'bfi-music',
  'embed': 'bfi-code'
};
/* harmony default export */ var PlayerModal = (function (_ref) {
  var title = _ref.title,
      type = _ref.type,
      language = _ref.language,
      name = _ref.name,
      url = _ref.url,
      poster = _ref.poster,
      children = _ref.children,
      onRemove = _ref.onRemove;
  return external_react_default.a.createElement("div", {
    className: "bf-player-holder ".concat(type)
  }, external_react_default.a.createElement("div", {
    className: "icon-badge"
  }, external_react_default.a.createElement("i", {
    className: typeIconsMap[type]
  }), external_react_default.a.createElement("span", {
    className: "text"
  }, language.media[type])), external_react_default.a.createElement("button", {
    onMouseDown: onRemove,
    className: "button-remove"
  }, external_react_default.a.createElement("i", {
    className: "bfi-close"
  })), external_react_default.a.createElement("button", {
    onMouseDown: function onMouseDown() {
      return PlayerModal_playViaModal(name ? "".concat(title, ":").concat(name) : title, children, language);
    },
    className: "button-play"
  }, external_react_default.a.createElement("i", {
    className: "bfi-play_arrow"
  })), name ? external_react_default.a.createElement("h5", {
    className: "bf-name"
  }, name) : null, external_react_default.a.createElement("h6", {
    className: "bf-url"
  }, url), poster ? external_react_default.a.createElement("div", {
    className: "bf-poster",
    style: {
      backgroundImage: "url(".concat(poster, ")")
    }
  }) : null);
});
// CONCATENATED MODULE: ./renderers/atomics/Video/index.jsx












var Video_Video =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(Video, _React$Component);

  function Video() {
    var _getPrototypeOf2;

    var _this;

    classCallCheck_default()(this, Video);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = possibleConstructorReturn_default()(this, (_getPrototypeOf2 = getPrototypeOf_default()(Video)).call.apply(_getPrototypeOf2, [this].concat(args)));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "removeVideo", function () {
      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].removeBlock(_this.props.editorState, _this.props.block));
    });

    return _this;
  }

  createClass_default()(Video, [{
    key: "render",
    value: function render() {
      var _this$props = this.props,
          mediaData = _this$props.mediaData,
          language = _this$props.language;
      var url = mediaData.url,
          name = mediaData.name,
          meta = mediaData.meta;
      return external_react_default.a.createElement("div", {
        className: "bf-video-wrap"
      }, external_react_default.a.createElement(PlayerModal, {
        type: "video",
        onRemove: this.removeVideo,
        poster: meta ? meta.poster || '' : '',
        language: language,
        url: url,
        name: name,
        title: language.videoPlayer.title
      }, external_react_default.a.createElement("div", {
        className: "bf-video-player"
      }, external_react_default.a.createElement("video", {
        controls: true,
        poster: meta ? meta.poster || '' : ''
      }, external_react_default.a.createElement("source", {
        src: url
      })))));
    }
  }]);

  return Video;
}(external_react_default.a.Component);


// EXTERNAL MODULE: ./renderers/atomics/Audio/style.scss
var Audio_style = __webpack_require__(50);

// CONCATENATED MODULE: ./renderers/atomics/Audio/index.jsx












var Audio_Audio =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(Audio, _React$Component);

  function Audio() {
    var _getPrototypeOf2;

    var _this;

    classCallCheck_default()(this, Audio);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = possibleConstructorReturn_default()(this, (_getPrototypeOf2 = getPrototypeOf_default()(Audio)).call.apply(_getPrototypeOf2, [this].concat(args)));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "removeAudio", function () {
      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].removeBlock(_this.props.editorState, _this.props.block));
    });

    return _this;
  }

  createClass_default()(Audio, [{
    key: "render",
    value: function render() {
      var _this$props = this.props,
          mediaData = _this$props.mediaData,
          language = _this$props.language;
      var url = mediaData.url,
          name = mediaData.name,
          meta = mediaData.meta;
      return external_react_default.a.createElement("div", {
        className: "bf-audio-wrap"
      }, external_react_default.a.createElement(PlayerModal, {
        type: "audio",
        onRemove: this.removeAudio,
        poster: meta ? meta.poster || '' : '',
        language: language,
        url: url,
        name: name,
        title: language.audioPlayer.title
      }, external_react_default.a.createElement("div", {
        className: "bf-audio-player"
      }, external_react_default.a.createElement("audio", {
        controls: true,
        src: url
      }))));
    }
  }]);

  return Audio;
}(external_react_default.a.Component);


// EXTERNAL MODULE: ./renderers/atomics/Embed/style.scss
var Embed_style = __webpack_require__(51);

// CONCATENATED MODULE: ./renderers/atomics/Embed/index.jsx












var Embed_Embed =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(Embed, _React$Component);

  function Embed() {
    var _getPrototypeOf2;

    var _this;

    classCallCheck_default()(this, Embed);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = possibleConstructorReturn_default()(this, (_getPrototypeOf2 = getPrototypeOf_default()(Embed)).call.apply(_getPrototypeOf2, [this].concat(args)));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "removeEmbed", function () {
      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].removeBlock(_this.props.editorState, _this.props.block));
    });

    return _this;
  }

  createClass_default()(Embed, [{
    key: "render",
    value: function render() {
      var _this$props = this.props,
          mediaData = _this$props.mediaData,
          language = _this$props.language;
      var name = mediaData.name,
          url = mediaData.url,
          meta = mediaData.meta;
      return external_react_default.a.createElement("div", {
        className: "bf-embed-wrap"
      }, external_react_default.a.createElement(PlayerModal, {
        type: "embed",
        onRemove: this.removeEmbed,
        poster: meta ? meta.poster || '' : '',
        language: language,
        url: url,
        name: name,
        title: language.videoPlayer.embedTitle
      }, external_react_default.a.createElement("div", {
        className: "bf-embed-player",
        dangerouslySetInnerHTML: {
          __html: url
        }
      })));
    }
  }]);

  return Embed;
}(external_react_default.a.Component);


// EXTERNAL MODULE: ./renderers/atomics/HorizontalLine/style.scss
var HorizontalLine_style = __webpack_require__(52);

// CONCATENATED MODULE: ./renderers/atomics/HorizontalLine/index.jsx











var HorizontalLine_HorizontalLine =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(HorizontalLine, _React$Component);

  function HorizontalLine() {
    var _getPrototypeOf2;

    var _this;

    classCallCheck_default()(this, HorizontalLine);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = possibleConstructorReturn_default()(this, (_getPrototypeOf2 = getPrototypeOf_default()(HorizontalLine)).call.apply(_getPrototypeOf2, [this].concat(args)));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "removeHorizontalLine", function () {
      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].removeBlock(_this.props.editorState, _this.props.block));
    });

    return _this;
  }

  createClass_default()(HorizontalLine, [{
    key: "render",
    value: function render() {
      return external_react_default.a.createElement("div", {
        className: "bf-hr"
      }, external_react_default.a.createElement("div", {
        className: "bf-media-toolbar"
      }, external_react_default.a.createElement("a", {
        onClick: this.removeHorizontalLine
      }, "\uE9AC")));
    }
  }]);

  return HorizontalLine;
}(external_react_default.a.Component);


// CONCATENATED MODULE: ./renderers/block/blockRendererFn.js











var blockRendererFn_BlockRenderFnContext = function BlockRenderFnContext() {
  var _this = this;

  classCallCheck_default()(this, BlockRenderFnContext);

  defineProperty_default()(this, "superProps", void 0);

  defineProperty_default()(this, "customBlockRendererFn", void 0);

  defineProperty_default()(this, "getRenderFn", function (superProps, customBlockRendererFn) {
    _this.superProps = superProps;
    _this.customBlockRendererFn = customBlockRendererFn;
    return _this.blockRendererFn;
  });

  defineProperty_default()(this, "renderAtomicBlock", function (props) {
    var superProps = _this.superProps;
    var entityKey = props.block.getEntityAt(0);

    if (!entityKey) {
      return null;
    }

    var entity = props.contentState.getEntity(entityKey);
    var mediaData = entity.getData();
    var mediaType = entity.getType();

    var mediaProps = objectSpread_default()({}, superProps, {
      block: props.block,
      mediaData: mediaData,
      entityKey: entityKey
    });

    if (mediaType === 'IMAGE') {
      return external_react_default.a.createElement(Image_Image, mediaProps);
    } else if (mediaType === 'AUDIO') {
      return external_react_default.a.createElement(Audio_Audio, mediaProps);
    } else if (mediaType === 'VIDEO') {
      return external_react_default.a.createElement(Video_Video, mediaProps);
    } else if (mediaType === 'EMBED') {
      return external_react_default.a.createElement(Embed_Embed, mediaProps);
    } else if (mediaType === 'HR') {
      return external_react_default.a.createElement(HorizontalLine_HorizontalLine, mediaProps);
    }

    if (superProps.extendAtomics) {
      var atomics = superProps.extendAtomics;

      for (var i = 0; i < atomics.length; i++) {
        if (mediaType === atomics[i].type) {
          var Component = atomics[i].component;
          return external_react_default.a.createElement(Component, mediaProps);
        }
      }
    }

    return null;
  });

  defineProperty_default()(this, "blockRendererFn", function (block) {
    var customBlockRendererFn = _this.customBlockRendererFn,
        superProps = _this.superProps;
    var blockType = block.getType();
    var blockRenderer = null;

    if (customBlockRendererFn) {
      blockRenderer = customBlockRendererFn(block, superProps) || null;
    }

    if (blockRenderer) {
      return blockRenderer;
    }

    var extensionBlockRendererFns = getExtensionBlockRendererFns(superProps.editorId);
    extensionBlockRendererFns.find(function (item) {
      if (item.blockType === blockType || item.blockType instanceof RegExp && item.blockType.test(blockType)) {
        blockRenderer = item.rendererFn ? item.rendererFn(superProps) : null;
        return true;
      }
    });

    if (blockRenderer) {
      return blockRenderer;
    }

    if (blockType === 'atomic') {
      blockRenderer = {
        component: _this.renderAtomicBlock,
        editable: false
      };
    }

    return blockRenderer;
  });
};

var blockRenderFnContext = new blockRendererFn_BlockRenderFnContext();
/* harmony default export */ var block_blockRendererFn = (blockRenderFnContext.getRenderFn);
// CONCATENATED MODULE: ./renderers/block/blockStyleFn.js
/* harmony default export */ var block_blockStyleFn = (function (customBlockStyleFn) {
  return function (block) {
    var blockAlignment = block.getData() && block.getData().get('textAlign');
    var blockIndent = block.getData() && block.getData().get('textIndent');
    var blockFloat = block.getData() && block.getData().get('float');
    var result = '';

    if (blockAlignment) {
      result = "bfa-".concat(blockAlignment);
    }

    if (blockIndent && blockIndent !== 0) {
      result += " bftd-".concat(blockIndent);
    }

    if (blockFloat) {
      result += " bff-".concat(blockFloat);
    }

    if (customBlockStyleFn) {
      result += customBlockStyleFn(block) || '';
    }

    return result;
  };
});
// CONCATENATED MODULE: ./renderers/inline/inlineStyleMap.js


/* harmony default export */ var inlineStyleMap = (function (props) {
  var customStyleMap = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  var extensionInlineStyleMap = getExtensionInlineStyleMap(props.editorId);
  return objectSpread_default()({
    'SUPERSCRIPT': {
      position: 'relative',
      top: '-8px',
      fontSize: '11px'
    },
    'SUBSCRIPT': {
      position: 'relative',
      bottom: '-8px',
      fontSize: '11px'
    }
  }, extensionInlineStyleMap, customStyleMap);
});
// CONCATENATED MODULE: ./renderers/inline/inlineStyleFn.js


var getStyleValue = function getStyleValue(style) {
  return style.split('-')[1];
};

/* harmony default export */ var inlineStyleFn = (function (props, options) {
  return function (styles, block) {
    var output = {};
    var fontFamilies = options.fontFamilies,
        unitExportFn = options.unitExportFn,
        customStyleFn = options.customStyleFn;
    var extensionInlineStyleFns = getExtensionInlineStyleFns(props.editorId);
    extensionInlineStyleFns.forEach(function (item) {
      output = item.styleFn ? item.styleFn(styles, block, output) : output;
    });
    output = customStyleFn ? customStyleFn(styles, block, output) : {};
    styles.forEach(function (style) {
      if (style.indexOf('COLOR-') === 0) {
        output.color = '#' + getStyleValue(style);
      } else if (style.indexOf('BGCOLOR-') === 0) {
        output.backgroundColor = '#' + getStyleValue(style);
      } else if (style.indexOf('FONTSIZE-') === 0) {
        output.fontSize = unitExportFn(getStyleValue(style), 'font-size', 'editor');
      } else if (style.indexOf('LINEHEIGHT-') === 0) {
        output.lineHeight = unitExportFn(getStyleValue(style), 'line-height', 'editor');
      } else if (style.indexOf('LETTERSPACING-') === 0) {
        output.letterSpacing = unitExportFn(getStyleValue(style), 'letter-spacing', 'editor');
      } else if (style.indexOf('TEXTINDENT-') === 0) {
        output.textIndent = unitExportFn(getStyleValue(style), 'text-indent', 'editor');
      } else if (style.indexOf('FONTFAMILY-') === 0) {
        output.fontFamily = (fontFamilies.find(function (item) {
          return item.name.toUpperCase() === getStyleValue(style);
        }) || {}).family || '';
      }
    });
    return output;
  };
});
// EXTERNAL MODULE: ../node_modules/draft-js-multidecorators/index.js
var draft_js_multidecorators = __webpack_require__(18);
var draft_js_multidecorators_default = /*#__PURE__*/__webpack_require__.n(draft_js_multidecorators);

// CONCATENATED MODULE: ./renderers/decorators/Link/index.jsx

/* harmony default export */ var Link = (function (props) {
  var children = props.children,
      entityKey = props.entityKey,
      contentState = props.contentState;

  var _contentState$getEnti = contentState.getEntity(entityKey).getData(),
      href = _contentState$getEnti.href,
      target = _contentState$getEnti.target;

  return external_react_default.a.createElement("span", {
    className: "bf-link-wrap"
  }, external_react_default.a.createElement("a", {
    onClick: function onClick(event) {
      return viewLink(event, href);
    },
    className: "bf-link",
    href: href,
    target: target
  }, children));
});

var viewLink = function viewLink(event, link) {
  // 当按下Ctrl/command键时，点击打开链接文字中的url
  if (event.getModifierState('Control') || event.getModifierState('Meta')) {
    var tempLink = document.createElement('a');
    tempLink.href = link;
    tempLink.target = event.currentTarget.target;
    tempLink.click();
  }
};
// CONCATENATED MODULE: ./renderers/decorators/index.js






var KEY_SEPARATOR = '-';

draft_js_multidecorators_default.a.prototype.getDecorations = function (block, contentState) {
  var decorations = Array(block.getText().length).fill(null);
  this.decorators.forEach(function (decorator, i) {
    decorator.getDecorations(block, contentState).forEach(function (key, offset) {
      if (!key) {
        return;
      }

      key = i + KEY_SEPARATOR + key;
      decorations[offset] = key;
    });
  });
  return external_immutable_default.a.List(decorations);
};

var builtinDecorators = [{
  type: 'entity',
  decorator: {
    key: 'LINK',
    component: Link
  }
}];

var createStrategy = function createStrategy(type) {
  return function (block, callback, contentState) {
    block.findEntityRanges(function (character) {
      var entityKey = character.getEntity();
      return entityKey !== null && contentState.getEntity(entityKey).getType() === type;
    }, callback);
  };
};

/* harmony default export */ var decorators = (function (editorId) {
  var extensionDecorators = getExtensionDecorators(editorId);
  var entityDecorators = builtinDecorators.concat(toConsumableArray_default()(extensionDecorators.filter(function (item) {
    return item.type === 'entity';
  })));
  var strategyDecorators = extensionDecorators.filter(function (item) {
    return item.type === 'strategy';
  });
  var classDecorators = extensionDecorators.filter(function (item) {
    return item.type === 'class';
  });
  return new draft_js_multidecorators_default.a(toConsumableArray_default()(classDecorators.map(function (item) {
    return item.decorator;
  })).concat([// combine decorators created with strategy
  new external_draft_js_["CompositeDecorator"](strategyDecorators.map(function (item) {
    return item.decorator;
  })), // combine decorators for entities
  new external_draft_js_["CompositeDecorator"](entityDecorators.map(function (item) {
    return {
      strategy: createStrategy(item.decorator.key),
      component: item.decorator.component
    };
  }))]));
});
// CONCATENATED MODULE: ./renderers/index.js






var getBlockRenderMap = block_blockRenderMap;
var getBlockRendererFn = block_blockRendererFn;
var getBlockStyleFn = block_blockStyleFn;
var getCustomStyleMap = inlineStyleMap;
var getCustomStyleFn = inlineStyleFn;
var getDecorators = decorators;
// EXTERNAL MODULE: ./components/business/ControlBar/style.scss
var ControlBar_style = __webpack_require__(53);

// EXTERNAL MODULE: ./components/business/LinkEditor/style.scss
var LinkEditor_style = __webpack_require__(54);

// EXTERNAL MODULE: ./components/common/DropDown/style.scss
var DropDown_style = __webpack_require__(55);

// CONCATENATED MODULE: ./helpers/responsive.js


var resizeEventHandlers = [];
var responsiveHelperInited = false;
var debouce = false;
/* harmony default export */ var responsive = ({
  resolve: function resolve(eventHandler) {
    var id = external_braft_utils_["BaseUtils"].UniqueIndex();
    resizeEventHandlers.push({
      id: id,
      eventHandler: eventHandler
    });
    return id;
  },
  unresolve: function unresolve(id) {
    resizeEventHandlers = resizeEventHandlers.filter(function (item) {
      return item.id !== id;
    });
  }
});

if (!responsiveHelperInited && (typeof window === "undefined" ? "undefined" : typeof_default()(window)) === 'object') {
  window.addEventListener('resize', function (event) {
    clearTimeout(debouce);
    debouce = setTimeout(function () {
      resizeEventHandlers.map(function (item) {
        typeof item.eventHandler === 'function' && item.eventHandler(event);
      });
      debouce = false;
    }, 100);
  });
  responsiveHelperInited = true;
}
// CONCATENATED MODULE: ./components/common/DropDown/index.jsx











var DropDown_DropDown =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(DropDown, _React$Component);

  function DropDown() {
    var _getPrototypeOf2;

    var _this;

    classCallCheck_default()(this, DropDown);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = possibleConstructorReturn_default()(this, (_getPrototypeOf2 = getPrototypeOf_default()(DropDown)).call.apply(_getPrototypeOf2, [this].concat(args)));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "responsiveResolveId", null);

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "dropDownHandlerElement", null);

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "dropDownContentElement", null);

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "state", {
      active: false,
      offset: 0
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "fixDropDownPosition", function () {
      var viewRect = _this.props.getContainerNode().getBoundingClientRect();

      var handlerRect = _this.dropDownHandlerElement.getBoundingClientRect();

      var contentRect = _this.dropDownContentElement.getBoundingClientRect();

      var offset = 0;
      var right = handlerRect.right - handlerRect.width / 2 + contentRect.width / 2;
      var left = handlerRect.left + handlerRect.width / 2 - contentRect.width / 2;
      right = viewRect.right - right;
      left = left - viewRect.left;

      if (right < 10) {
        offset = right - 10;
      } else if (left < 10) {
        offset = left * -1 + 10;
      }

      if (offset !== _this.state.offset) {
        _this.setState({
          offset: offset
        });
      }
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "registerClickEvent", function (event) {
      var autoHide = _this.props.autoHide;
      var active = _this.state.active;

      if (_this.dropDownContentElement.contains(event.target) || _this.dropDownHandlerElement.contains(event.target)) {
        return false;
      }

      autoHide && active && _this.hide();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "toggle", function () {
      _this.setState({
        active: !_this.state.active
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "show", function () {
      _this.setState({
        active: true
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "hide", function () {
      _this.setState({
        active: false
      });
    });

    return _this;
  }

  createClass_default()(DropDown, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      if (document) {
        document.body.addEventListener('click', this.registerClickEvent);
        this.responsiveResolveId = responsive.resolve(this.fixDropDownPosition);
      }
    }
  }, {
    key: "componentWillReceiveProps",
    value: function componentWillReceiveProps(next) {
      if (!this.props.disabled && next.disabled) {
        this.hide();
      }
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate(prevState) {
      if (!prevState.active && this.state.active) {
        this.fixDropDownPosition();
      }
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      if (document) {
        document.body.removeEventListener('click', this.registerClickEvent);
        responsive.unresolve(this.responsiveResolveId);
      }
    }
  }, {
    key: "render",
    value: function render() {
      var _this2 = this;

      var _this$state = this.state,
          active = _this$state.active,
          offset = _this$state.offset;
      var _this$props = this.props,
          caption = _this$props.caption,
          htmlCaption = _this$props.htmlCaption,
          title = _this$props.title,
          disabled = _this$props.disabled,
          showArrow = _this$props.showArrow,
          arrowActive = _this$props.arrowActive,
          className = _this$props.className,
          children = _this$props.children,
          theme = _this$props.theme;
      disabled && (active = false);
      theme === 'light' && (className = ' light-theme ' + className);
      return external_react_default.a.createElement("div", {
        className: 'bf-dropdown ' + (active ? 'active ' : '') + (disabled ? 'disabled ' : '') + className
      }, htmlCaption ? external_react_default.a.createElement("button", {
        type: "button",
        className: "dropdown-handler",
        "data-title": title,
        onClick: this.toggle,
        dangerouslySetInnerHTML: htmlCaption ? {
          __html: htmlCaption
        } : null,
        ref: function ref(instance) {
          return _this2.dropDownHandlerElement = instance;
        }
      }) : external_react_default.a.createElement("button", {
        type: "button",
        className: "dropdown-handler",
        "data-title": title,
        onClick: this.toggle,
        ref: function ref(instance) {
          return _this2.dropDownHandlerElement = instance;
        }
      }, external_react_default.a.createElement("span", null, caption), showArrow !== false ? external_react_default.a.createElement("i", {
        className: "bfi-drop-down"
      }) : null), external_react_default.a.createElement("div", {
        className: "dropdown-content",
        style: {
          marginLeft: offset
        },
        ref: function ref(instance) {
          return _this2.dropDownContentElement = instance;
        }
      }, external_react_default.a.createElement("i", {
        style: {
          marginLeft: offset * -1
        },
        className: 'dropdown-arrow' + (arrowActive ? ' active' : '')
      }), external_react_default.a.createElement("div", {
        className: "dropdown-content-inner"
      }, children)));
    }
  }]);

  return DropDown;
}(external_react_default.a.Component);


// CONCATENATED MODULE: ./components/business/ControlGroup/index.jsx

/* harmony default export */ var ControlGroup = (function (props) {
  if (external_react_default.a.Fragment) {
    return external_react_default.a.createElement(external_react_default.a.Fragment, null, props.children);
  } else {
    return external_react_default.a.createElement("div", {
      className: "control-item-group"
    }, props.children);
  }
});
// CONCATENATED MODULE: ./components/business/LinkEditor/index.jsx














var LinkEditor_LinkEditor =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(LinkEditor, _React$Component);

  function LinkEditor(props) {
    var _this;

    classCallCheck_default()(this, LinkEditor);

    _this = possibleConstructorReturn_default()(this, getPrototypeOf_default()(LinkEditor).call(this, props));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "dropDownInstance", null);

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handeKeyDown", function (e) {
      if (e.keyCode === 13) {
        _this.handleConfirm();

        e.preventDefault();
        return false;
      }
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleTnputText", function (e) {
      _this.setState({
        text: e.currentTarget.value
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleInputLink", function (e) {
      _this.setState({
        href: e.currentTarget.value
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "setTarget", function () {
      _this.setState({
        target: _this.state.target === '_blank' ? '' : '_blank'
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleCancel", function () {
      _this.dropDownInstance.hide();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleUnlink", function () {
      _this.dropDownInstance.hide();

      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionLink(_this.props.editorState, false));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleConfirm", function () {
      var _this$state = _this.state,
          text = _this$state.text,
          href = _this$state.href,
          target = _this$state.target,
          textSelected = _this$state.textSelected;

      var hookReturns = _this.props.hooks('toggle-link', {
        href: href,
        target: target
      })({
        href: href,
        target: target
      });

      _this.dropDownInstance.hide();

      _this.props.editor.requestFocus();

      if (hookReturns === false) {
        return false;
      }

      if (hookReturns) {
        typeof hookReturns.href === 'string' && (href = hookReturns.href);
        typeof hookReturns.target === 'string' && (target = hookReturns.target);
      }

      if (textSelected) {
        if (href) {
          _this.props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionLink(_this.props.editorState, href, target));
        } else {
          _this.props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionLink(_this.props.editorState, false));
        }
      } else {
        _this.props.editor.setValue(external_braft_utils_["ContentUtils"].insertText(_this.props.editorState, text || href, null, {
          type: 'LINK',
          data: {
            href: href,
            target: target
          }
        }));
      }
    });

    _this.state = {
      text: '',
      href: '',
      target: props.defaultLinkTarget || '',
      textSelected: false
    };
    return _this;
  }

  createClass_default()(LinkEditor, [{
    key: "componentWillReceiveProps",
    value: function componentWillReceiveProps(nextProps) {
      var _ContentUtils$getSele = external_braft_utils_["ContentUtils"].getSelectionEntityData(nextProps.editorState, 'LINK'),
          href = _ContentUtils$getSele.href,
          target = _ContentUtils$getSele.target;

      var textSelected = !external_braft_utils_["ContentUtils"].isSelectionCollapsed(this.props.editorState) && external_braft_utils_["ContentUtils"].getSelectionBlockType(this.props.editorState) !== 'atomic';
      var selectedText = '';

      if (textSelected) {
        selectedText = external_braft_utils_["ContentUtils"].getSelectionText(this.props.editorState);
      }

      this.setState({
        textSelected: textSelected,
        text: selectedText,
        href: href || '',
        target: typeof target === 'undefined' ? nextProps.defaultLinkTarget || '' : target || ''
      });
    }
  }, {
    key: "render",
    value: function render() {
      var _this2 = this;

      var allowInsertLinkText = this.props.allowInsertLinkText;
      var _this$state2 = this.state,
          text = _this$state2.text,
          href = _this$state2.href,
          target = _this$state2.target,
          textSelected = _this$state2.textSelected;
      var caption = external_react_default.a.createElement("i", {
        className: "bfi-link"
      });
      return external_react_default.a.createElement(ControlGroup, null, external_react_default.a.createElement(DropDown_DropDown, {
        key: 0,
        caption: caption,
        title: this.props.language.controls.link,
        autoHide: true,
        getContainerNode: this.props.getContainerNode,
        showArrow: false,
        ref: function ref(instance) {
          return _this2.dropDownInstance = instance;
        },
        className: 'control-item dropdown link-editor-dropdown'
      }, external_react_default.a.createElement("div", {
        className: "bf-link-editor"
      }, allowInsertLinkText ? external_react_default.a.createElement("div", {
        className: "input-group"
      }, external_react_default.a.createElement("input", {
        type: "text",
        value: text,
        spellCheck: false,
        disabled: textSelected,
        placeholder: this.props.language.linkEditor.textInputPlaceHolder,
        onKeyDown: this.handeKeyDown,
        onChange: this.handleTnputText
      })) : null, external_react_default.a.createElement("div", {
        className: "input-group"
      }, external_react_default.a.createElement("input", {
        type: "text",
        value: href,
        spellCheck: false,
        placeholder: this.props.language.linkEditor.linkInputPlaceHolder,
        onKeyDown: this.handeKeyDown,
        onChange: this.handleInputLink
      })), external_react_default.a.createElement("div", {
        className: "switch-group"
      }, external_react_default.a.createElement(Switch, {
        active: target === '_blank',
        onClick: this.setTarget
      }), external_react_default.a.createElement("label", null, this.props.language.linkEditor.openInNewWindow)), external_react_default.a.createElement("div", {
        className: "buttons"
      }, external_react_default.a.createElement("a", {
        onClick: this.handleUnlink,
        className: "primary button-remove-link pull-left"
      }, external_react_default.a.createElement("i", {
        className: "bfi-close"
      }), external_react_default.a.createElement("span", null, this.props.language.linkEditor.removeLink)), external_react_default.a.createElement("button", {
        type: "button",
        onClick: this.handleConfirm,
        className: "primary pull-right"
      }, this.props.language.base.confirm), external_react_default.a.createElement("button", {
        type: "button",
        onClick: this.handleCancel,
        className: "default pull-right"
      }, this.props.language.base.cancel)))), external_react_default.a.createElement("button", {
        key: 1,
        type: "button",
        "data-title": this.props.language.controls.unlink,
        className: "control-item button",
        onClick: this.handleUnlink,
        disabled: !textSelected || !href
      }, external_react_default.a.createElement("i", {
        className: "bfi-link-off"
      })));
    }
  }]);

  return LinkEditor;
}(external_react_default.a.Component);


// EXTERNAL MODULE: ./components/business/Headings/style.scss
var Headings_style = __webpack_require__(56);

// CONCATENATED MODULE: ./configs/maps.js

var maps_getHeadings = function getHeadings(lang) {
  return [{
    key: 'header-one',
    title: lang.controls.header + ' 1',
    text: external_react_default.a.createElement("h1", null, lang.controls.header, " 1"),
    type: 'block-type',
    command: 'header-one'
  }, {
    key: 'header-two',
    title: lang.controls.header + ' 2',
    text: external_react_default.a.createElement("h2", null, lang.controls.header, " 2"),
    type: 'block-type',
    command: 'header-two'
  }, {
    key: 'header-three',
    title: lang.controls.header + ' 3',
    text: external_react_default.a.createElement("h3", null, lang.controls.header, " 3"),
    type: 'block-type',
    command: 'header-three'
  }, {
    key: 'header-four',
    title: lang.controls.header + ' 4',
    text: external_react_default.a.createElement("h4", null, lang.controls.header, " 4"),
    type: 'block-type',
    command: 'header-four'
  }, {
    key: 'header-five',
    title: lang.controls.header + ' 5',
    text: external_react_default.a.createElement("h5", null, lang.controls.header, " 5"),
    type: 'block-type',
    command: 'header-five'
  }, {
    key: 'header-six',
    title: lang.controls.header + ' 6',
    text: external_react_default.a.createElement("h6", null, lang.controls.header, " 6"),
    type: 'block-type',
    command: 'header-six'
  }, {
    key: 'unstyled',
    title: lang.controls.normal,
    text: lang.controls.normal,
    type: 'block-type',
    command: 'unstyled'
  }];
};
// CONCATENATED MODULE: ./components/business/Headings/index.jsx




/* harmony default export */ var Headings = (function (props) {
  var dropDownInstance = null;
  var headings = maps_getHeadings(props.language).filter(function (item) {
    return props.headings.indexOf(item.key) !== -1;
  });
  var currentHeadingIndex = headings.findIndex(function (item) {
    return item.command === props.current;
  });
  var caption = headings[currentHeadingIndex] ? headings[currentHeadingIndex].title : props.language.controls.normal;
  return external_react_default.a.createElement(DropDown_DropDown, {
    caption: caption,
    autoHide: true,
    getContainerNode: props.getContainerNode,
    title: props.language.controls.headings,
    arrowActive: currentHeadingIndex === 0,
    ref: function ref(instance) {
      return dropDownInstance = instance;
    },
    className: 'control-item dropdown headings-dropdown'
  }, external_react_default.a.createElement("ul", {
    className: "menu"
  }, headings.map(function (item, index) {
    var isActive = props.current === item.command;
    return external_react_default.a.createElement("li", {
      key: index,
      className: 'menu-item' + (isActive ? ' active' : ''),
      onClick: function onClick() {
        props.onChange(item.command, item.type), dropDownInstance.hide();
      }
    }, item.text);
  })));
});
// EXTERNAL MODULE: ./components/business/TextColor/style.scss
var TextColor_style = __webpack_require__(57);

// EXTERNAL MODULE: ./components/common/ColorPicker/style.scss
var ColorPicker_style = __webpack_require__(58);

// CONCATENATED MODULE: ./components/common/ColorPicker/index.jsx


/* harmony default export */ var common_ColorPicker = (function (props) {
  return external_react_default.a.createElement("div", {
    className: "bf-colors-wrap"
  }, external_react_default.a.createElement("ul", {
    className: "bf-colors"
  }, props.presetColors.map(function (item, index) {
    var className = props.color && item.toLowerCase() === props.color.toLowerCase() ? 'color-item active' : 'color-item';
    return external_react_default.a.createElement("li", {
      key: index,
      title: item,
      className: className,
      style: {
        color: item
      },
      "data-color": item.replace('#', ''),
      onClick: function onClick(e) {
        props.onChange(e.currentTarget.dataset.color, true);
      }
    });
  })));
});
// CONCATENATED MODULE: ./components/business/TextColor/index.jsx













var TextColor_TextColor =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(TextColor, _React$Component);

  function TextColor() {
    var _getPrototypeOf2;

    var _this;

    classCallCheck_default()(this, TextColor);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = possibleConstructorReturn_default()(this, (_getPrototypeOf2 = getPrototypeOf_default()(TextColor)).call.apply(_getPrototypeOf2, [this].concat(args)));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "state", {
      colorType: 'color'
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "switchColorType", function (_ref) {
      var currentTarget = _ref.currentTarget;

      _this.setState({
        colorType: currentTarget.dataset.type
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "toggleColor", function (color, closePicker) {
      if (color) {
        var hookReturns = _this.props.hooks("toggle-text-".concat(_this.state.colorType), color)(color);

        if (hookReturns === false) {
          return false;
        }

        if (typeof hookReturns === 'string') {
          color = hookReturns;
        }

        if (_this.state.colorType === 'color') {
          _this.props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionColor(_this.props.editorState, color));
        } else {
          _this.props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionBackgroundColor(_this.props.editorState, color));
        }
      }

      if (closePicker) {
        _this.dropDownInstance.hide();

        _this.props.editor.requestFocus();
      }
    });

    return _this;
  }

  createClass_default()(TextColor, [{
    key: "render",
    value: function render() {
      var _this2 = this;

      var captionStyle = {};
      var currentColor = null;
      var colorType = this.state.colorType;
      var selectionStyles = this.props.editorState.getCurrentInlineStyle().toJS();
      selectionStyles.forEach(function (style) {
        if (style.indexOf('COLOR-') === 0) {
          captionStyle.color = '#' + style.split('-')[1];
          colorType === 'color' && (currentColor = captionStyle.color);
        }

        if (style.indexOf('BGCOLOR-') === 0) {
          captionStyle.backgroundColor = '#' + style.split('-')[1];
          colorType === 'background-color' && (currentColor = captionStyle.backgroundColor);
        }
      });
      var caption = external_react_default.a.createElement("i", {
        style: captionStyle,
        className: "bfi-text-color"
      }, external_react_default.a.createElement("span", {
        className: "path1"
      }), external_react_default.a.createElement("span", {
        className: "path2"
      }));
      var ColorPicker = this.props.colorPicker || common_ColorPicker;
      return external_react_default.a.createElement(DropDown_DropDown, {
        caption: caption,
        title: this.props.language.controls.color,
        showArrow: false,
        autoHide: this.props.autoHide,
        theme: this.props.theme,
        getContainerNode: this.props.getContainerNode,
        ref: function ref(instance) {
          return _this2.dropDownInstance = instance;
        },
        className: 'control-item dropdown text-color-dropdown'
      }, external_react_default.a.createElement("div", {
        className: "bf-text-color-picker-wrap"
      }, external_react_default.a.createElement("div", {
        className: "bf-color-switch-buttons",
        style: this.props.enableBackgroundColor ? {} : {
          display: 'none'
        }
      }, external_react_default.a.createElement("button", {
        type: "button",
        "data-type": "color",
        className: colorType === 'color' ? 'active' : '',
        onClick: this.switchColorType
      }, this.props.language.controls.textColor), external_react_default.a.createElement("button", {
        type: "button",
        "data-type": "background-color",
        className: colorType === 'background-color' ? 'active' : '',
        onClick: this.switchColorType
      }, this.props.language.controls.backgroundColor)), external_react_default.a.createElement(ColorPicker, {
        width: 200,
        color: currentColor,
        disableAlpha: true,
        presetColors: this.props.colors,
        onChange: this.toggleColor
      })));
    }
  }]);

  return TextColor;
}(external_react_default.a.Component);


// EXTERNAL MODULE: ./components/business/FontSize/style.scss
var FontSize_style = __webpack_require__(59);

// CONCATENATED MODULE: ./components/business/FontSize/index.jsx





var FontSize_toggleFontSize = function toggleFontSize(event, props) {
  var fontSize = event.currentTarget.dataset.size;
  var hookReturns = props.hooks('toggle-font-size', fontSize)(fontSize);

  if (hookReturns === false) {
    return false;
  }

  if (!isNaN(fontSize)) {
    fontSize = hookReturns;
  }

  props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionFontSize(props.editorState, fontSize));
  props.editor.requestFocus();
};

/* harmony default export */ var FontSize = (function (props) {
  var caption = null;
  var currentFontSize = null;
  var dropDownInstance = null;
  props.fontSizes.find(function (item) {
    if (external_braft_utils_["ContentUtils"].selectionHasInlineStyle(props.editorState, 'FONTSIZE-' + item)) {
      caption = item;
      currentFontSize = item;
      return true;
    }

    return false;
  });
  return external_react_default.a.createElement(DropDown_DropDown, {
    autoHide: true,
    caption: caption || props.defaultCaption,
    getContainerNode: props.getContainerNode,
    title: props.language.controls.fontSize,
    ref: function ref(instance) {
      return dropDownInstance = instance;
    },
    className: 'control-item dropdown bf-font-size-dropdown'
  }, external_react_default.a.createElement("ul", {
    className: "bf-font-sizes"
  }, props.fontSizes.map(function (item, index) {
    return external_react_default.a.createElement("li", {
      key: index,
      className: item === currentFontSize ? 'active' : null,
      "data-size": item,
      onClick: function onClick(event) {
        FontSize_toggleFontSize(event, props), dropDownInstance.hide();
      }
    }, item);
  })));
});
// EXTERNAL MODULE: ./components/business/LineHeight/style.scss
var LineHeight_style = __webpack_require__(60);

// CONCATENATED MODULE: ./components/business/LineHeight/index.jsx





var LineHeight_toggleLineHeight = function toggleLineHeight(event, props) {
  var lineHeight = event.currentTarget.dataset.size;
  var hookReturns = props.hooks('toggle-line-height', lineHeight)(lineHeight);

  if (hookReturns === false) {
    return false;
  }

  if (!isNaN(hookReturns)) {
    lineHeight = hookReturns;
  }

  props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionLineHeight(props.editorState, lineHeight));
  props.editor.requestFocus();
};

/* harmony default export */ var LineHeight = (function (props) {
  var caption = null;
  var currentLineHeight = null;
  var dropDownInstance = null;
  props.lineHeights.find(function (item) {
    if (external_braft_utils_["ContentUtils"].selectionHasInlineStyle(props.editorState, 'LINEHEIGHT-' + item)) {
      caption = item;
      currentLineHeight = item;
      return true;
    }

    return false;
  });
  return external_react_default.a.createElement(DropDown_DropDown, {
    autoHide: true,
    caption: caption || props.defaultCaption,
    getContainerNode: props.getContainerNode,
    title: props.language.controls.lineHeight,
    ref: function ref(instance) {
      return dropDownInstance = instance;
    },
    className: 'control-item dropdown bf-line-height-dropdown'
  }, external_react_default.a.createElement("ul", {
    className: "bf-line-heights"
  }, props.lineHeights.map(function (item, index) {
    return external_react_default.a.createElement("li", {
      key: index,
      className: item === currentLineHeight ? 'active' : null,
      "data-size": item,
      onClick: function onClick(event) {
        LineHeight_toggleLineHeight(event, props), dropDownInstance.hide();
      }
    }, item);
  })));
});
// EXTERNAL MODULE: ./components/business/FontFamily/style.scss
var FontFamily_style = __webpack_require__(61);

// CONCATENATED MODULE: ./components/business/FontFamily/index.jsx





var FontFamily_toggleFontFamily = function toggleFontFamily(event, props) {
  var fontFamilyName = event.currentTarget.dataset.name;
  var hookReturns = props.hooks('toggle-font-family', fontFamilyName)(fontFamilyName, props.fontFamilies);

  if (hookReturns === false) {
    return false;
  }

  if (typeof hookReturns === 'string') {
    fontFamilyName = hookReturns;
  }

  props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionFontFamily(props.editorState, fontFamilyName));
  props.editor.requestFocus();
};

/* harmony default export */ var FontFamily = (function (props) {
  var caption = null;
  var currentIndex = null;
  var dropDownInstance = null;
  props.fontFamilies.find(function (item, index) {
    if (external_braft_utils_["ContentUtils"].selectionHasInlineStyle(props.editorState, 'FONTFAMILY-' + item.name)) {
      caption = item.name;
      currentIndex = index;
      return true;
    }

    return false;
  });
  return external_react_default.a.createElement(DropDown_DropDown, {
    caption: caption || props.defaultCaption,
    getContainerNode: props.getContainerNode,
    title: props.language.controls.fontFamily,
    autoHide: true,
    arrowActive: currentIndex === 0,
    ref: function ref(instance) {
      return dropDownInstance = instance;
    },
    className: 'control-item dropdown font-family-dropdown'
  }, external_react_default.a.createElement("ul", {
    className: "menu"
  }, props.fontFamilies.map(function (item, index) {
    return external_react_default.a.createElement("li", {
      key: index,
      className: 'menu-item ' + (index === currentIndex ? 'active' : ''),
      "data-name": item.name,
      onClick: function onClick(event) {
        FontFamily_toggleFontFamily(event, props), dropDownInstance.hide();
      }
    }, external_react_default.a.createElement("span", {
      style: {
        fontFamily: item.family
      }
    }, item.name));
  })));
});
// CONCATENATED MODULE: ./components/business/TextAlign/index.jsx











var TextAlign_TextAlign =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(TextAlign, _React$Component);

  function TextAlign() {
    var _getPrototypeOf2;

    var _this;

    classCallCheck_default()(this, TextAlign);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = possibleConstructorReturn_default()(this, (_getPrototypeOf2 = getPrototypeOf_default()(TextAlign)).call.apply(_getPrototypeOf2, [this].concat(args)));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "state", {
      currentAlignment: undefined
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "setAlignment", function (event) {
      var alignment = event.currentTarget.dataset.alignment;

      var hookReturns = _this.props.hooks('toggle-text-alignment', alignment)(alignment);

      if (_this.props.textAligns.indexOf(hookReturns) > -1) {
        alignment = hookReturns;
      }

      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionAlignment(_this.props.editorState, alignment));

      _this.props.editor.requestFocus();
    });

    return _this;
  }

  createClass_default()(TextAlign, [{
    key: "componentWillReceiveProps",
    value: function componentWillReceiveProps(next) {
      this.setState({
        currentAlignment: external_braft_utils_["ContentUtils"].getSelectionBlockData(next.editorState, 'textAlign')
      });
    }
  }, {
    key: "render",
    value: function render() {
      var _this2 = this;

      var textAlignmentTitles = [this.props.language.controls.alignLeft, this.props.language.controls.alignCenter, this.props.language.controls.alignRight, this.props.language.controls.alignJustify];
      return external_react_default.a.createElement(ControlGroup, null, this.props.textAligns.map(function (item, index) {
        return external_react_default.a.createElement("button", {
          type: "button",
          key: index,
          "data-title": textAlignmentTitles[index],
          "data-alignment": item,
          className: 'control-item button ' + (item === _this2.state.currentAlignment ? 'active' : null),
          onClick: _this2.setAlignment
        }, external_react_default.a.createElement("i", {
          className: 'bfi-align-' + item
        }));
      }));
    }
  }]);

  return TextAlign;
}(external_react_default.a.Component);


// EXTERNAL MODULE: ./components/business/EmojiPicker/style.scss
var EmojiPicker_style = __webpack_require__(62);

// CONCATENATED MODULE: ./components/business/EmojiPicker/index.jsx





var EmojiPicker_insertEmoji = function insertEmoji(event, props) {
  var emoji = event.currentTarget.dataset.emoji;
  var hookReturns = props.hooks('insert-emoji', emoji)(emoji);

  if (hookReturns === false) {
    return false;
  }

  if (typeof hookReturns === 'string') {
    emoji = hookReturns;
  }

  props.editor.setValue(external_braft_utils_["ContentUtils"].insertText(props.editorState, emoji));
  props.editor.requestFocus();
};

/* harmony default export */ var EmojiPicker = (function (props) {
  return external_react_default.a.createElement(DropDown_DropDown, {
    caption: props.defaultCaption,
    autoHide: true,
    showArrow: false,
    getContainerNode: props.getContainerNode,
    title: props.language.controls.emoji,
    className: 'control-item dropdown bf-emoji-dropdown'
  }, external_react_default.a.createElement("div", {
    className: "bf-emojis-wrap"
  }, external_react_default.a.createElement("ul", {
    className: "bf-emojis"
  }, props.emojis.map(function (item, index) {
    return external_react_default.a.createElement("li", {
      key: index,
      "data-emoji": item,
      onClick: function onClick(event) {
        return EmojiPicker_insertEmoji(event, props);
      }
    }, item);
  }))));
});
// EXTERNAL MODULE: ./components/business/LetterSpacing/style.scss
var LetterSpacing_style = __webpack_require__(63);

// CONCATENATED MODULE: ./components/business/LetterSpacing/index.jsx





var LetterSpacing_toggleLetterSpacing = function toggleLetterSpacing(event, props) {
  var letterSpacing = event.currentTarget.dataset.size;
  var hookReturns = props.hooks('toggle-letter-spacing', letterSpacing)(letterSpacing);

  if (hookReturns === false) {
    return false;
  }

  if (!isNaN(hookReturns)) {
    letterSpacing = hookReturns;
  }

  props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionLetterSpacing(props.editorState, letterSpacing));
  props.editor.requestFocus();
};

/* harmony default export */ var LetterSpacing = (function (props) {
  var caption = null;
  var currentLetterSpacing = null;
  var dropDownInstance = null;
  props.letterSpacings.find(function (item) {
    if (external_braft_utils_["ContentUtils"].selectionHasInlineStyle(props.editorState, 'LETTERSPACING-' + item)) {
      caption = item;
      currentLetterSpacing = item;
      return true;
    }

    return false;
  });
  return external_react_default.a.createElement(DropDown_DropDown, {
    autoHide: true,
    caption: caption || props.defaultCaption,
    getContainerNode: props.getContainerNode,
    title: props.language.controls.letterSpacing,
    ref: function ref(instance) {
      return dropDownInstance = instance;
    },
    className: 'control-item dropdown bf-letter-spacing-dropdown'
  }, external_react_default.a.createElement("ul", {
    className: "bf-letter-spacings"
  }, props.letterSpacings.map(function (item, index) {
    return external_react_default.a.createElement("li", {
      key: index,
      className: item === currentLetterSpacing ? 'active' : null,
      "data-size": item,
      onClick: function onClick(event) {
        LetterSpacing_toggleLetterSpacing(event, props), dropDownInstance.hide();
      }
    }, item);
  })));
});
// CONCATENATED MODULE: ./components/business/TextIndent/index.jsx











var TextIndent_TextAlign =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(TextAlign, _React$Component);

  function TextAlign() {
    var _getPrototypeOf2;

    var _this;

    classCallCheck_default()(this, TextAlign);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = possibleConstructorReturn_default()(this, (_getPrototypeOf2 = getPrototypeOf_default()(TextAlign)).call.apply(_getPrototypeOf2, [this].concat(args)));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "state", {
      currentIndent: 0
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "increaseIndent", function () {
      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].increaseSelectionIndent(_this.props.editorState));

      _this.props.editor.requestFocus();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "decreaseIndent", function () {
      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].decreaseSelectionIndent(_this.props.editorState));

      _this.props.editor.requestFocus();
    });

    return _this;
  }

  createClass_default()(TextAlign, [{
    key: "componentWillReceiveProps",
    value: function componentWillReceiveProps(nextProps) {
      this.setState({
        currentIndent: external_braft_utils_["ContentUtils"].getSelectionBlockData(nextProps.editorState, 'textIndent') || 0
      });
    }
  }, {
    key: "render",
    value: function render() {
      var currentIndent = this.state.currentIndent;
      var language = this.props.language;
      return external_react_default.a.createElement(ControlGroup, null, external_react_default.a.createElement("button", {
        key: 0,
        type: "button",
        "data-title": language.controls.increaseIndent,
        disabled: currentIndent >= 6,
        className: "control-item button button-indent-increase".concat(currentIndent > 0 && currentIndent < 6 ? ' active' : ''),
        onClick: this.increaseIndent
      }, external_react_default.a.createElement("i", {
        className: 'bfi-indent-increase'
      })), external_react_default.a.createElement("button", {
        key: 1,
        type: "button",
        "data-title": language.controls.decreaseIndent,
        disabled: currentIndent <= 0,
        className: "control-item button button-indent-decrease",
        onClick: this.decreaseIndent
      }, external_react_default.a.createElement("i", {
        className: 'bfi-indent-decrease'
      })));
    }
  }]);

  return TextAlign;
}(external_react_default.a.Component);


// CONCATENATED MODULE: ./components/business/ControlBar/index.jsx


























var commandHookMap = {
  'inline-style': 'toggle-inline-style',
  'block-type': 'change-block-type',
  'editor-method': 'exec-editor-command'
};
var exclusiveInlineStyles = {
  'superscript': 'subscript',
  'subscript': 'superscript'
};

var mergeControls = function mergeControls(commonProps, builtControls, extensionControls, extendControls) {
  extensionControls = extensionControls.map(function (item) {
    return typeof item === 'function' ? item(commonProps) : item;
  });
  extendControls = extendControls.map(function (item) {
    return typeof item === 'function' ? item(commonProps) : item;
  });

  if (extensionControls.length === 0 && extendControls.length === 0) {
    return builtControls;
  }

  return builtControls.map(function (item) {
    return extendControls.find(function (subItem) {
      return subItem.replace === (item.key || item);
    }) || extensionControls.find(function (subItem) {
      return subItem.replace === (item.key || item);
    }) || item;
  }).concat(extensionControls.length ? 'separator' : '').concat(extensionControls.filter(function (item) {
    return !item.replace;
  })).concat(extendControls.filter(function (item) {
    return typeof item === 'string' || !item.replace;
  }));
};

var ControlBar_ControlBar =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(ControlBar, _React$Component);

  function ControlBar() {
    var _getPrototypeOf2;

    var _this;

    classCallCheck_default()(this, ControlBar);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = possibleConstructorReturn_default()(this, (_getPrototypeOf2 = getPrototypeOf_default()(ControlBar)).call.apply(_getPrototypeOf2, [this].concat(args)));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "allControls", []);

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "mediaLibiraryModal", null);

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "extendedModals", {});

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "openBraftFinder", function () {
      if (!_this.props.braftFinder || !_this.props.braftFinder.ReactComponent) {
        return false;
      }

      if (_this.props.hooks('open-braft-finder')() === false) {
        return false;
      }

      var mediaProps = _this.props.media;
      var MediaLibrary = _this.props.braftFinder.ReactComponent;
      _this.mediaLibiraryModal = Modal_showModal({
        title: _this.props.language.controls.mediaLibirary,
        language: _this.props.language,
        width: 640,
        showFooter: false,
        component: external_react_default.a.createElement(MediaLibrary, {
          accepts: mediaProps.accepts,
          onCancel: _this.closeBraftFinder,
          onInsert: _this.insertMedias,
          onChange: mediaProps.onChange,
          externals: mediaProps.externals,
          onBeforeSelect: _this.bindBraftFinderHook('select-medias'),
          onBeforeDeselect: _this.bindBraftFinderHook('deselect-medias'),
          onBeforeRemove: _this.bindBraftFinderHook('remove-medias'),
          onBeforeInsert: _this.bindBraftFinderHook('insert-medias'),
          onFileSelect: _this.bindBraftFinderHook('select-files')
        })
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "bindBraftFinderHook", function (hookName) {
      return function () {
        return _this.props.hooks(hookName, arguments.length <= 0 ? undefined : arguments[0]).apply(void 0, arguments);
      };
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "insertMedias", function (medias) {
      _this.props.editor.setValue(external_braft_utils_["ContentUtils"].insertMedias(_this.props.editorState, medias));

      _this.props.editor.requestFocus();

      _this.props.media.onInsert && _this.props.media.onInsert(medias);

      _this.closeBraftFinder();
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "closeBraftFinder", function () {
      _this.props.media.onCancel && _this.props.media.onCancel();
      _this.mediaLibiraryModal && _this.mediaLibiraryModal.close();
    });

    return _this;
  }

  createClass_default()(ControlBar, [{
    key: "componentDidUpdate",
    value: function componentDidUpdate() {
      var _this2 = this;

      var language = this.props.language;
      this.allControls.forEach(function (item) {
        if (item.type === 'modal') {
          if (item.modal && item.modal.id && _this2.extendedModals[item.modal.id]) {
            _this2.extendedModals[item.modal.id].update(objectSpread_default()({}, item.modal, {
              language: language
            }));
          }
        }
      });
    }
  }, {
    key: "getControlItemClassName",
    value: function getControlItemClassName(data) {
      var className = 'control-item button';
      var type = data.type,
          command = data.command;

      if (type === 'inline-style' && external_braft_utils_["ContentUtils"].selectionHasInlineStyle(this.props.editorState, command)) {
        className += ' active';
      } else if (type === 'block-type' && external_braft_utils_["ContentUtils"].getSelectionBlockType(this.props.editorState) === command) {
        className += ' active';
      } else if (type === 'entity' && external_braft_utils_["ContentUtils"].getSelectionEntityType(this.props.editorState) === command) {
        className += ' active';
      }

      return className;
    }
  }, {
    key: "applyControl",
    value: function applyControl(command, type) {
      var data = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
      var hookReturns = this.props.hooks(commandHookMap[type] || type, command)(command);
      var editorState = this.props.editorState;

      if (hookReturns === false) {
        return false;
      }

      if (typeof hookReturns === 'string') {
        command = hookReturns;
      }

      if (type === 'inline-style') {
        var exclusiveInlineStyle = exclusiveInlineStyles[command];

        if (exclusiveInlineStyle && external_braft_utils_["ContentUtils"].selectionHasInlineStyle(editorState, exclusiveInlineStyle)) {
          editorState = external_braft_utils_["ContentUtils"].toggleSelectionInlineStyle(editorState, exclusiveInlineStyle);
        }

        this.props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionInlineStyle(editorState, command));
      } else if (type === 'block-type') {
        this.props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionBlockType(editorState, command));
      } else if (type === 'entity') {
        this.props.editor.setValue(external_braft_utils_["ContentUtils"].toggleSelectionEntity(editorState, {
          type: command,
          mutability: data.mutability || 'MUTABLE',
          data: data.data || {}
        }));
      } else if (type === 'editor-method') {
        this.props.editor[command] && this.props.editor[command]();
      }
    }
  }, {
    key: "render",
    value: function render() {
      var _this3 = this;

      var _this$props = this.props,
          editor = _this$props.editor,
          editorId = _this$props.editorId,
          editorState = _this$props.editorState,
          className = _this$props.className,
          style = _this$props.style,
          controls = _this$props.controls,
          media = _this$props.media,
          extendControls = _this$props.extendControls,
          language = _this$props.language,
          hooks = _this$props.hooks,
          colors = _this$props.colors,
          colorPicker = _this$props.colorPicker,
          colorPickerTheme = _this$props.colorPickerTheme,
          colorPickerAutoHide = _this$props.colorPickerAutoHide,
          headings = _this$props.headings,
          fontSizes = _this$props.fontSizes,
          fontFamilies = _this$props.fontFamilies,
          emojis = _this$props.emojis,
          getContainerNode = _this$props.getContainerNode,
          lineHeights = _this$props.lineHeights,
          letterSpacings = _this$props.letterSpacings,
          textAligns = _this$props.textAligns,
          textBackgroundColor = _this$props.textBackgroundColor,
          allowInsertLinkText = _this$props.allowInsertLinkText,
          defaultLinkTarget = _this$props.defaultLinkTarget;
      var currentBlockType = external_braft_utils_["ContentUtils"].getSelectionBlockType(editorState);
      var commonProps = {
        editor: editor,
        editorId: editorId,
        editorState: editorState,
        language: language,
        getContainerNode: getContainerNode,
        hooks: hooks
      };
      var renderedControls = [];
      var editorControls = configs_controls(language, editor);
      var extensionControls = getExtensionControls(editorId);
      var allControls = mergeControls(commonProps, controls, extensionControls, extendControls);
      this.allControls = allControls;
      return external_react_default.a.createElement("div", {
        className: "bf-controlbar ".concat(className || ''),
        style: style,
        onMouseDown: this.preventDefault
      }, allControls.map(function (item, index) {
        var itemKey = typeof item === 'string' ? item : item.key;

        if (typeof itemKey !== 'string') {
          return null;
        }

        if (renderedControls.indexOf(itemKey) > -1) {
          return null;
        }

        if (itemKey.toLowerCase() === 'separator') {
          return external_react_default.a.createElement("span", {
            key: index,
            className: "separator-line"
          });
        }

        var controlItem = editorControls.find(function (subItem) {
          return subItem.key.toLowerCase() === itemKey.toLowerCase();
        });

        if (typeof item !== 'string') {
          controlItem = objectSpread_default()({}, controlItem, item);
        }

        if (!controlItem) {
          return null;
        }

        renderedControls.push(itemKey);

        if (controlItem.type === 'headings') {
          return external_react_default.a.createElement(Headings, extends_default()({
            key: index,
            headings: headings,
            current: currentBlockType,
            onChange: function onChange(command) {
              return _this3.applyControl(command, 'block-type');
            }
          }, commonProps));
        } else if (controlItem.type === 'text-color') {
          return external_react_default.a.createElement(TextColor_TextColor, extends_default()({
            key: index,
            colors: colors,
            colorPicker: colorPicker,
            theme: colorPickerTheme,
            autoHide: colorPickerAutoHide,
            enableBackgroundColor: textBackgroundColor
          }, commonProps));
        } else if (controlItem.type === 'font-size') {
          return external_react_default.a.createElement(FontSize, extends_default()({
            key: index,
            fontSizes: fontSizes,
            defaultCaption: controlItem.title
          }, commonProps));
        } else if (controlItem.type === 'line-height') {
          return external_react_default.a.createElement(LineHeight, extends_default()({
            key: index,
            lineHeights: lineHeights,
            defaultCaption: controlItem.title
          }, commonProps));
        } else if (controlItem.type === 'letter-spacing') {
          return external_react_default.a.createElement(LetterSpacing, extends_default()({
            key: index,
            letterSpacings: letterSpacings,
            defaultCaption: controlItem.title
          }, commonProps));
        } else if (controlItem.type === 'text-indent') {
          return external_react_default.a.createElement(TextIndent_TextAlign, extends_default()({
            key: index,
            defaultCaption: controlItem.title
          }, commonProps));
        } else if (controlItem.type === 'font-family') {
          return external_react_default.a.createElement(FontFamily, extends_default()({
            key: index,
            fontFamilies: fontFamilies,
            defaultCaption: controlItem.title
          }, commonProps));
        } else if (controlItem.type === 'emoji') {
          return external_react_default.a.createElement(EmojiPicker, extends_default()({
            key: index,
            emojis: emojis,
            defaultCaption: controlItem.text
          }, commonProps));
        } else if (controlItem.type === 'link') {
          return external_react_default.a.createElement(LinkEditor_LinkEditor, extends_default()({
            key: index,
            defaultLinkTarget: defaultLinkTarget,
            allowInsertLinkText: allowInsertLinkText
          }, commonProps));
        } else if (controlItem.type === 'text-align') {
          return external_react_default.a.createElement(TextAlign_TextAlign, extends_default()({
            key: index,
            textAligns: textAligns
          }, commonProps));
        } else if (controlItem.type === 'media') {
          if (!media.image && !media.video && !media.audio) {
            return null;
          }

          return external_react_default.a.createElement("button", {
            type: "button",
            key: index,
            "data-title": controlItem.title,
            disabled: controlItem.disabled,
            className: "control-item media button",
            onClick: _this3.openBraftFinder
          }, controlItem.text);
        } else if (controlItem.type === 'dropdown') {
          return external_react_default.a.createElement(DropDown_DropDown, extends_default()({
            key: index,
            className: "control-item extend-control-item dropdown ".concat(controlItem.className || ''),
            caption: controlItem.text,
            htmlCaption: controlItem.html,
            showArrow: controlItem.showArrow,
            title: controlItem.title,
            arrowActive: controlItem.arrowActive,
            theme: controlItem.theme,
            autoHide: controlItem.autoHide,
            disabled: controlItem.disabled,
            ref: controlItem.ref
          }, commonProps), controlItem.component);
        } else if (controlItem.type === 'modal') {
          return external_react_default.a.createElement("button", {
            type: "button",
            key: index,
            "data-title": controlItem.title,
            disabled: controlItem.disabled,
            className: "control-item extend-control-item button ".concat(controlItem.className || ''),
            dangerouslySetInnerHTML: controlItem.html ? {
              __html: controlItem.html
            } : null,
            onClick: function onClick(event) {
              if (controlItem.modal && controlItem.modal.id) {
                if (_this3.extendedModals[controlItem.modal.id]) {
                  _this3.extendedModals[controlItem.modal.id].active = true;

                  _this3.extendedModals[controlItem.modal.id].update(objectSpread_default()({}, controlItem.modal, {
                    language: language
                  }));
                } else {
                  _this3.extendedModals[controlItem.modal.id] = Modal_showModal(objectSpread_default()({}, controlItem.modal, {
                    language: language
                  }));
                  controlItem.modal.onCreate && controlItem.modal.onCreate(_this3.extendedModals[controlItem.modal.id]);
                }
              }

              controlItem.onClick && controlItem.onClick(event);
            }
          }, !controlItem.html ? controlItem.text : null);
        } else if (controlItem.type === 'component') {
          return external_react_default.a.createElement("div", {
            key: index,
            className: "component-wrapper ".concat(controlItem.className || '')
          }, controlItem.component);
        } else if (controlItem.type === 'button') {
          return external_react_default.a.createElement("button", {
            type: "button",
            key: index,
            "data-title": controlItem.title,
            disabled: controlItem.disabled,
            className: "control-item button ".concat(controlItem.className || ''),
            dangerouslySetInnerHTML: controlItem.html ? {
              __html: controlItem.html
            } : null,
            onClick: function onClick(event) {
              return controlItem.onClick && controlItem.onClick(event);
            }
          }, !controlItem.html ? controlItem.text : null);
        } else if (controlItem) {
          var disabled = false;

          if (controlItem.command === 'undo') {
            disabled = editorState.getUndoStack().size === 0;
          } else if (controlItem.command === 'redo') {
            disabled = editorState.getRedoStack().size === 0;
          }

          return external_react_default.a.createElement("button", {
            type: "button",
            key: index,
            disabled: disabled,
            "data-title": controlItem.title,
            className: _this3.getControlItemClassName({
              type: controlItem.type,
              command: controlItem.command
            }),
            onClick: function onClick() {
              return _this3.applyControl(controlItem.command, controlItem.type, controlItem.data);
            }
          }, controlItem.text);
        }
      }));
    }
  }, {
    key: "preventDefault",
    value: function preventDefault(event) {
      var tagName = event.target.tagName.toLowerCase();

      if (tagName === 'input' || tagName === 'label') ; else {
        event.preventDefault();
      }
    }
  }]);

  return ControlBar;
}(external_react_default.a.Component);


// CONCATENATED MODULE: ./editor/index.jsx

























var buildHooks = function buildHooks(hooks) {
  return function (hookName) {
    var defaultReturns = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    return hooks[hookName] || function () {
      return defaultReturns;
    };
  };
};

var filterColors = function filterColors(colors, colors2) {
  return colors.filter(function (item) {
    return !colors2.find(function (color) {
      return color.toLowerCase() === item.toLowerCase();
    });
  }).filter(function (item, index, array) {
    return array.indexOf(item) === index;
  });
};

var editor_isControlEnabled = function isControlEnabled(props, controlName) {
  return toConsumableArray_default()(props.controls).concat(toConsumableArray_default()(props.extendControls)).find(function (item) {
    return item === controlName || item.key === controlName;
  }) && props.excludeControls.indexOf(controlName) === -1;
};

var editor_getConvertOptions = function getConvertOptions(props) {
  var editorId = props.editorId || props.id;

  var convertOptions = objectSpread_default()({}, configs_props.converts, props.converts, {
    fontFamilies: props.fontFamilies
  });

  convertOptions.styleImportFn = compositeStyleImportFn(convertOptions.styleImportFn, editorId);
  convertOptions.styleExportFn = compositeStyleExportFn(convertOptions.styleExportFn, editorId);
  convertOptions.entityImportFn = compositeEntityImportFn(convertOptions.entityImportFn, editorId);
  convertOptions.entityExportFn = compositeEntityExportFn(convertOptions.entityExportFn, editorId);
  convertOptions.blockImportFn = compositeBlockImportFn(convertOptions.blockImportFn, editorId);
  convertOptions.blockExportFn = compositeBlockExportFn(convertOptions.blockExportFn, editorId);
  return convertOptions;
};

var editor_BraftEditor =
/*#__PURE__*/
function (_React$Component) {
  inherits_default()(BraftEditor, _React$Component);

  function BraftEditor(props) {
    var _this;

    classCallCheck_default()(this, BraftEditor);

    _this = possibleConstructorReturn_default()(this, getPrototypeOf_default()(BraftEditor).call(this, props));

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "onChange", function (editorState, callback) {
      if (!(editorState instanceof external_draft_js_["EditorState"])) {
        editorState = external_draft_js_["EditorState"].set(editorState, {
          decorator: _this.editorDecorators
        });
      }

      if (!editorState.convertOptions) {
        editorState.setConvertOptions(editor_getConvertOptions(_this.editorProps));
      }

      _this.setState({
        editorState: editorState
      }, function () {
        _this.props.onChange && _this.props.onChange(editorState);
        callback && callback(editorState);
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "getDraftInstance", function () {
      return _this.draftInstance;
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "getFinderInstance", function () {
      return _this.braftFinder;
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "getValue", function () {
      return _this.state.editorState;
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "setValue", function (editorState, callback) {
      return _this.onChange(editorState, callback);
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "forceRender", function () {
      var selectionState = _this.state.editorState.getSelection();

      _this.setValue(external_draft_js_["EditorState"].set(_this.state.editorState, {
        decorator: _this.editorDecorators
      }), function () {
        _this.setValue(external_draft_js_["EditorState"].forceSelection(_this.state.editorState, selectionState));
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "onTab", function (event) {
      if (handlers_keyCommandHandlers('tab', _this.state.editorState, assertThisInitialized_default()(assertThisInitialized_default()(_this))) === 'handled') {
        event.preventDefault();
      }

      _this.editorProps.onTab && _this.editorProps.onTab(event);
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "onFocus", function () {
      _this.isFocused = true;
      _this.editorProps.onFocus && _this.editorProps.onFocus(_this.state.editorState);
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "onBlur", function () {
      _this.isFocused = false;
      _this.editorProps.onBlur && _this.editorProps.onBlur(_this.state.editorState);
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "requestFocus", function () {
      setTimeout(function () {
        return _this.draftInstance.focus();
      }, 0);
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleKeyCommand", function (command, editorState) {
      return handlers_keyCommandHandlers(command, editorState, assertThisInitialized_default()(assertThisInitialized_default()(_this)));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleReturn", function (event, editorState) {
      return handlers_returnHandlers(event, editorState, assertThisInitialized_default()(assertThisInitialized_default()(_this)));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleBeforeInput", function (chars, editorState) {
      return beforeInputHandlers(chars, editorState, assertThisInitialized_default()(assertThisInitialized_default()(_this)));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleDrop", function (selectionState, dataTransfer) {
      return handlers_dropHandlers(selectionState, dataTransfer, assertThisInitialized_default()(assertThisInitialized_default()(_this)));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleDroppedFiles", function (selectionState, files) {
      return droppedFilesHandlers(selectionState, files, assertThisInitialized_default()(assertThisInitialized_default()(_this)));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handlePastedFiles", function (files) {
      return pastedFilesHandlers(files, assertThisInitialized_default()(assertThisInitialized_default()(_this)));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleCopyContent", function (event) {
      return handlers_copyHandlers(event, assertThisInitialized_default()(assertThisInitialized_default()(_this)));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handlePastedText", function (text, html, editorState) {
      return handlers_pastedTextHandlers(text, html, editorState, assertThisInitialized_default()(assertThisInitialized_default()(_this)));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "handleCompositionStart", function (event) {
      return handlers_compositionStartHandler(event, assertThisInitialized_default()(assertThisInitialized_default()(_this)));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "undo", function () {
      _this.setValue(external_braft_utils_["ContentUtils"].undo(_this.state.editorState));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "redo", function () {
      _this.setValue(external_braft_utils_["ContentUtils"].redo(_this.state.editorState));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "removeSelectionInlineStyles", function () {
      _this.setValue(external_braft_utils_["ContentUtils"].removeSelectionInlineStyles(_this.state.editorState));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "insertHorizontalLine", function () {
      _this.setValue(external_braft_utils_["ContentUtils"].insertHorizontalLine(_this.state.editorState));
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "clearEditorContent", function () {
      _this.setValue(external_braft_utils_["ContentUtils"].clear(_this.state.editorState), function (editorState) {
        _this.setValue(external_braft_utils_["ContentUtils"].toggleSelectionIndent(editorState, 0));
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "toggleFullscreen", function (fullscreen) {
      _this.setState({
        isFullscreen: typeof fullscreen !== 'undefined' ? fullscreen : !_this.state.isFullscreen
      }, function () {
        _this.editorProps.onFullscreen && _this.editorProps.onFullscreen(_this.state.isFullscreen);
      });
    });

    defineProperty_default()(assertThisInitialized_default()(assertThisInitialized_default()(_this)), "setEditorContainerNode", function (containerNode) {
      _this.containerNode = containerNode;
    });

    _this.editorProps = _this.getEditorProps(props);
    _this.editorDecorators = getDecorators(_this.editorProps.editorId || _this.editorProps.id);
    _this.isFocused = false;
    _this.isLiving = false;
    _this.braftFinder = null;
    _this.valueInitialized = !!(_this.props.defaultValue || _this.props.value);
    var defaultEditorState = (_this.props.defaultValue || _this.props.value) instanceof external_draft_js_["EditorState"] ? _this.props.defaultValue || _this.props.value : external_draft_js_["EditorState"].createEmpty(_this.editorDecorators);
    defaultEditorState.setConvertOptions(editor_getConvertOptions(_this.editorProps));
    var tempColors = [];

    if (external_braft_utils_["ContentUtils"].isEditorState(defaultEditorState)) {
      var colors = external_braft_utils_["ColorUtils"].detectColorsFromDraftState(defaultEditorState.toRAW(true));
      defaultEditorState.setConvertOptions(editor_getConvertOptions(_this.editorProps));
      tempColors = filterColors(colors, _this.editorProps.colors);
    }

    _this.state = {
      tempColors: tempColors,
      editorState: defaultEditorState,
      isFullscreen: false,
      draftProps: {}
    };
    _this.containerNode = null;
    return _this;
  }

  createClass_default()(BraftEditor, [{
    key: "getEditorProps",
    value: function getEditorProps(props) {
      var _this2 = this;

      props = props || this.props;

      var _props = props,
          value = _props.value,
          defaultValue = _props.defaultValue,
          onChange = _props.onChange,
          restProps = objectWithoutProperties_default()(_props, ["value", "defaultValue", "onChange"]); // eslint-disable-line no-unused-vars


      var propInterceptors = getPropInterceptors(restProps.editorId || restProps.id);

      if (propInterceptors.length === 0) {
        return restProps;
      }

      var porpsMap = Object(external_immutable_["Map"])(restProps);
      propInterceptors.forEach(function (interceptor) {
        porpsMap = porpsMap.merge(Object(external_immutable_["Map"])(interceptor(porpsMap.toJS(), _this2) || {}));
      });
      return porpsMap.toJS();
    }
  }, {
    key: "componentWillMount",
    value: function componentWillMount() {
      if (editor_isControlEnabled(this.editorProps, 'media')) {
        var _this$editorProps = this.editorProps,
            language = _this$editorProps.language,
            media = _this$editorProps.media;

        var _defaultProps$media$m = objectSpread_default()({}, configs_props.media, media),
            uploadFn = _defaultProps$media$m.uploadFn,
            validateFn = _defaultProps$media$m.validateFn,
            items = _defaultProps$media$m.items;

        this.braftFinder = new external_braft_finder_default.a({
          items: items,
          language: language,
          uploader: uploadFn,
          validator: validateFn
        });
        this.forceUpdate();
      }
    }
  }, {
    key: "componentDidMount",
    value: function componentDidMount() {
      this.isLiving = true;
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate(_, prevState) {
      if (prevState.editorState !== this.state.editorState) {
        this.state.editorState.setConvertOptions(editor_getConvertOptions(this.editorProps));
      }
    }
  }, {
    key: "componentWillReceiveProps",
    value: function componentWillReceiveProps(props) {
      var _this3 = this;

      this.editorProps = this.getEditorProps(props);
      var editorState = props.value;
      var _this$editorProps2 = this.editorProps,
          media = _this$editorProps2.media,
          language = _this$editorProps2.language;
      var currentProps = this.getEditorProps();

      if (!editor_isControlEnabled(currentProps, 'media') && editor_isControlEnabled(this.editorProps, 'media') && !this.braftFinder) {
        var _defaultProps$media$m2 = objectSpread_default()({}, configs_props.media, media),
            uploadFn = _defaultProps$media$m2.uploadFn,
            validateFn = _defaultProps$media$m2.validateFn,
            items = _defaultProps$media$m2.items;

        this.braftFinder = new external_braft_finder_default.a({
          items: items,
          language: language,
          uploader: uploadFn,
          validator: validateFn
        });
        this.forceUpdate();
      }

      if (media && media.items && this.braftFinder) {
        this.braftFinder.setItems(media.items);
      }

      var nextEditorState;

      if (!this.valueInitialized && typeof this.props.defaultValue === 'undefined' && external_braft_utils_["ContentUtils"].isEditorState(props.defaultValue)) {
        nextEditorState = props.defaultValue;
      } else if (external_braft_utils_["ContentUtils"].isEditorState(editorState)) {
        nextEditorState = editorState;
      }

      if (nextEditorState) {
        if (nextEditorState && nextEditorState !== this.state.editorState) {
          var tempColors = external_braft_utils_["ColorUtils"].detectColorsFromDraftState(nextEditorState.toRAW(true));
          nextEditorState.setConvertOptions(editor_getConvertOptions(this.editorProps));
          this.setState({
            tempColors: filterColors(toConsumableArray_default()(this.state.tempColors).concat(toConsumableArray_default()(tempColors)), currentProps.colors),
            editorState: nextEditorState
          }, function () {
            _this3.props.onChange && _this3.props.onChange(nextEditorState);
          });
        } else {
          this.setState({
            editorState: nextEditorState
          });
        }
      }
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      this.isLiving = false;
      this.controlBarInstance && this.controlBarInstance.closeBraftFinder();
    }
  }, {
    key: "lockOrUnlockEditor",
    value: function lockOrUnlockEditor(editorLocked) {
      this.setState({
        editorLocked: editorLocked
      });
    }
  }, {
    key: "render",
    value: function render() {
      var _this4 = this;

      var _this$editorProps3 = this.editorProps,
          id = _this$editorProps3.id,
          editorId = _this$editorProps3.editorId,
          controls = _this$editorProps3.controls,
          excludeControls = _this$editorProps3.excludeControls,
          extendControls = _this$editorProps3.extendControls,
          readOnly = _this$editorProps3.readOnly,
          disabled = _this$editorProps3.disabled,
          media = _this$editorProps3.media,
          language = _this$editorProps3.language,
          colors = _this$editorProps3.colors,
          colorPicker = _this$editorProps3.colorPicker,
          colorPickerTheme = _this$editorProps3.colorPickerTheme,
          colorPickerAutoHide = _this$editorProps3.colorPickerAutoHide,
          hooks = _this$editorProps3.hooks,
          fontSizes = _this$editorProps3.fontSizes,
          fontFamilies = _this$editorProps3.fontFamilies,
          emojis = _this$editorProps3.emojis,
          placeholder = _this$editorProps3.placeholder,
          fixPlaceholder = _this$editorProps3.fixPlaceholder,
          headings = _this$editorProps3.headings,
          imageControls = _this$editorProps3.imageControls,
          imageResizable = _this$editorProps3.imageResizable,
          lineHeights = _this$editorProps3.lineHeights,
          letterSpacings = _this$editorProps3.letterSpacings,
          textAligns = _this$editorProps3.textAligns,
          textBackgroundColor = _this$editorProps3.textBackgroundColor,
          allowInsertLinkText = _this$editorProps3.allowInsertLinkText,
          defaultLinkTarget = _this$editorProps3.defaultLinkTarget,
          extendAtomics = _this$editorProps3.extendAtomics,
          className = _this$editorProps3.className,
          style = _this$editorProps3.style,
          controlBarClassName = _this$editorProps3.controlBarClassName,
          controlBarStyle = _this$editorProps3.controlBarStyle,
          contentClassName = _this$editorProps3.contentClassName,
          contentStyle = _this$editorProps3.contentStyle,
          stripPastedStyles = _this$editorProps3.stripPastedStyles,
          componentBelowControlBar = _this$editorProps3.componentBelowControlBar;
      var _this$state = this.state,
          isFullscreen = _this$state.isFullscreen,
          editorState = _this$state.editorState;
      editorId = editorId || id;
      hooks = buildHooks(hooks);
      controls = controls.filter(function (item) {
        return excludeControls.indexOf(item) === -1;
      });
      language = (typeof language === 'function' ? language(languages, 'braft-editor') : languages[language]) || languages[configs_props.language];
      var externalMedias = media && media.externals ? objectSpread_default()({}, configs_props.media.externals, media.externals) : configs_props.media.externals;
      var accepts = media && media.accepts ? objectSpread_default()({}, configs_props.media.accepts, media.accepts) : configs_props.media.accepts;
      media = objectSpread_default()({}, configs_props.media, media, {
        externalMedias: externalMedias,
        accepts: accepts
      });

      if (!media.uploadFn) {
        media.video = false;
        media.audio = false;
      }

      var controlBarProps = {
        editor: this,
        editorState: editorState,
        braftFinder: this.braftFinder,
        ref: function ref(instance) {
          return _this4.controlBarInstance = instance;
        },
        getContainerNode: function getContainerNode() {
          return _this4.containerNode;
        },
        className: controlBarClassName,
        style: controlBarStyle,
        colors: toConsumableArray_default()(colors).concat(toConsumableArray_default()(this.state.tempColors)),
        colorPicker: colorPicker,
        colorPickerTheme: colorPickerTheme,
        colorPickerAutoHide: colorPickerAutoHide,
        hooks: hooks,
        editorId: editorId,
        media: media,
        controls: controls,
        language: language,
        extendControls: extendControls,
        headings: headings,
        fontSizes: fontSizes,
        fontFamilies: fontFamilies,
        emojis: emojis,
        lineHeights: lineHeights,
        letterSpacings: letterSpacings,
        textAligns: textAligns,
        textBackgroundColor: textBackgroundColor,
        allowInsertLinkText: allowInsertLinkText,
        defaultLinkTarget: defaultLinkTarget
      };
      var unitExportFn = editorState.convertOptions.unitExportFn;
      var commonProps = {
        editor: this,
        editorId: editorId,
        hooks: hooks,
        editorState: editorState,
        containerNode: this.containerNode,
        imageControls: imageControls,
        imageResizable: imageResizable,
        language: language,
        extendAtomics: extendAtomics
      };
      var blockRendererFn = getBlockRendererFn(commonProps, this.editorProps.blockRendererFn);
      var blockRenderMap = getBlockRenderMap(commonProps, this.editorProps.blockRenderMap);
      var blockStyleFn = getBlockStyleFn(this.editorProps.blockStyleFn);
      var customStyleMap = getCustomStyleMap(commonProps, this.editorProps.customStyleMap);
      var customStyleFn = getCustomStyleFn(commonProps, {
        fontFamilies: fontFamilies,
        unitExportFn: unitExportFn,
        customStyleFn: this.editorProps.customStyleFn
      });
      var keyBindingFn = keybindings(this.editorProps.keyBindingFn);
      var mixedProps = {};

      if (this.state.editorLocked || this.editorProps.disabled || this.editorProps.readOnly || this.editorProps.draftProps.readOnly) {
        mixedProps.readOnly = true;
      }

      if (placeholder && fixPlaceholder && editorState.isEmpty() && editorState.getCurrentContent().getFirstBlock().getType() !== 'unstyled') {
        placeholder = '';
      }

      var draftProps = objectSpread_default()({
        ref: function ref(instance) {
          _this4.draftInstance = instance;
        },
        editorState: editorState,
        handleKeyCommand: this.handleKeyCommand,
        handleReturn: this.handleReturn,
        handleBeforeInput: this.handleBeforeInput,
        handleDrop: this.handleDrop,
        handleDroppedFiles: this.handleDroppedFiles,
        handlePastedText: this.handlePastedText,
        handlePastedFiles: this.handlePastedFiles,
        onChange: this.onChange,
        onTab: this.onTab,
        onFocus: this.onFocus,
        onBlur: this.onBlur,
        blockRenderMap: blockRenderMap,
        blockRendererFn: blockRendererFn,
        blockStyleFn: blockStyleFn,
        customStyleMap: customStyleMap,
        customStyleFn: customStyleFn,
        keyBindingFn: keyBindingFn,
        placeholder: placeholder,
        stripPastedStyles: stripPastedStyles
      }, this.editorProps.draftProps, mixedProps);

      return external_react_default.a.createElement("div", {
        style: style,
        ref: this.setEditorContainerNode,
        className: "bf-container ".concat(className).concat(disabled ? ' disabled' : '').concat(readOnly ? ' read-only' : '').concat(isFullscreen ? ' fullscreen' : '')
      }, external_react_default.a.createElement(ControlBar_ControlBar, controlBarProps), componentBelowControlBar, external_react_default.a.createElement("div", {
        onCompositionStart: this.handleCompositionStart,
        className: "bf-content ".concat(contentClassName),
        onCopy: this.handleCopyContent,
        style: contentStyle
      }, external_react_default.a.createElement(external_draft_js_["Editor"], draftProps)));
    }
  }]);

  return BraftEditor;
}(external_react_default.a.Component);

defineProperty_default()(editor_BraftEditor, "defaultProps", configs_props);



// EXTERNAL MODULE: external "braft-convert"
var external_braft_convert_ = __webpack_require__(14);

// CONCATENATED MODULE: ./index.jsx
/* concated harmony reexport EditorState */__webpack_require__.d(__webpack_exports__, "EditorState", function() { return external_draft_js_["EditorState"]; });
/* concated harmony reexport getDecorators */__webpack_require__.d(__webpack_exports__, "getDecorators", function() { return getDecorators; });







external_draft_js_["EditorState"].prototype.setConvertOptions = function () {
  var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  this.convertOptions = options;
};

external_draft_js_["EditorState"].prototype.toHTML = function () {
  var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  var convertOptions = this.convertOptions || {};
  return Object(external_braft_convert_["convertEditorStateToHTML"])(this, objectSpread_default()({}, convertOptions, options));
};

external_draft_js_["EditorState"].prototype.toRAW = function (noStringify) {
  return noStringify ? Object(external_braft_convert_["convertEditorStateToRaw"])(this) : JSON.stringify(Object(external_braft_convert_["convertEditorStateToRaw"])(this));
};

external_draft_js_["EditorState"].prototype.toText = function () {
  return this.getCurrentContent().getPlainText();
};

external_draft_js_["EditorState"].prototype.isEmpty = function () {
  return !this.getCurrentContent().hasText();
};

editor_BraftEditor.createEditorState = external_draft_js_["EditorState"].createFrom = function (content) {
  var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  options.unitExportFn = options.unitExportFn || editor_BraftEditor.defaultProps.converts.unitExportFn;
  options.styleImportFn = compositeStyleImportFn(options.styleImportFn, options.editorId);
  options.entityImportFn = compositeEntityImportFn(options.entityImportFn, options.editorId);
  options.blockImportFn = compositeBlockImportFn(options.blockImportFn, options.editorId);
  var editorState = null;

  if (content instanceof external_draft_js_["EditorState"]) {
    editorState = content;
  } else if (typeof_default()(content) === 'object' && content && content.blocks && content.entityMap) {
    editorState = Object(external_braft_convert_["convertRawToEditorState"])(content, getDecorators(options.editorId));
  } else if (typeof content === 'string') {
    try {
      if (/^(-)?\d+$/.test(content)) {
        editorState = Object(external_braft_convert_["convertHTMLToEditorState"])(content, getDecorators(options.editorId), options, 'create');
      } else {
        editorState = external_draft_js_["EditorState"].createFrom(JSON.parse(content), options);
      }
    } catch (error) {
      editorState = Object(external_braft_convert_["convertHTMLToEditorState"])(content, getDecorators(options.editorId), options, 'create');
    }
  } else if (typeof content === 'number') {
    editorState = Object(external_braft_convert_["convertHTMLToEditorState"])(content.toLocaleString().replace(/,/g, ''), getDecorators(options.editorId), options, 'create');
  } else {
    editorState = external_draft_js_["EditorState"].createEmpty(getDecorators(options.editorId));
  }

  options.styleExportFn = compositeStyleExportFn(options.styleExportFn, options.editorId);
  options.entityExportFn = compositeEntityExportFn(options.entityExportFn, options.editorId);
  options.blockExportFn = compositeBlockExportFn(options.blockExportFn, options.editorId);
  editorState.setConvertOptions(options);
  return editorState;
};

/* harmony default export */ var index_0 = __webpack_exports__["default"] = (createExtensibleEditor(editor_BraftEditor));
 // 2.1版本开发计划
// [ ]优化选中多行文字是插入链接报错的问题
// [ ]新增编辑器内图片删除hook
// 2.2版本开发计划
// [ ]表格功能
// [ ]美化UI，包括图标和界面风格
// 2.3版本开发计划
// [ ]初级md快捷输入支持
// [ ]图片裁切等简单的编辑功能
// [ ]允许自定义快捷键

/***/ }),
/* 40 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 41 */,
/* 42 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 43 */,
/* 44 */,
/* 45 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 46 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 47 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 48 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 49 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 50 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 51 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 52 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 53 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 54 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 55 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 56 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 57 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 58 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 59 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 60 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 61 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 62 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 63 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ })
/******/ ]);
});

});

var BraftEditor = unwrapExports(dist$3);

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.2s}.index_bf-emojis__3p4Ps li:hover{transform:scale(1.5)}";
styleInject(css);

var css$1 = ".emoticon_braft-emoticon-picker__26_HU{box-sizing:border-box;width:210px;height:210px;overflow:hidden}.emoticon_braft-emoticon-picker__26_HU:after,.emoticon_braft-emoticon-picker__26_HU:before{position:absolute;z-index:1;right:0;left:0;height:30px;border-radius:2px;content:\"\";pointer-events:none}.emoticon_braft-emoticon-picker__26_HU:before{top:0;background-image:linear-gradient(0deg,rgba(33,36,42,0),#21242a)}.emoticon_braft-emoticon-picker__26_HU:after{bottom:0;background-image:linear-gradient(rgba(33,36,42,0),#21242a)}.emoticon_braft-emoticon-picker__26_HU .emoticon_braft-emoticons-list__P1AeK{box-sizing:content-box;width:200px;height:190px;margin:0;padding:15px 15px 20px;overflow:auto}.emoticon_braft-emoticon-picker__26_HU .emoticon_braft-emoticons-list__P1AeK img{display:block;box-sizing:content-box;float:left;width:20px;height:20px;margin:3px;padding:5px;border-radius:3px}.emoticon_braft-emoticon-picker__26_HU .emoticon_braft-emoticons-list__P1AeK img:hover{background-color:#3498db}.emoticon_braft-emoticon-in-editor__10cwl{position:relative;padding:0 2px;letter-spacing:12px}.emoticon_braft-emoticon-in-editor__10cwl img{position:absolute;top:0;left:2px;width:16px;height:16px}";
styleInject(css$1);

var immutable$3 = createCommonjsModule(function (module, exports) {
/**
 * Copyright (c) 2014-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

(function (global, factory) {
   factory(exports) ;
}(commonjsGlobal, (function (exports) {
  // Used for setting prototype methods that IE8 chokes on.
  var DELETE = 'delete';

  // Constants describing the size of trie nodes.
  var SHIFT = 5; // Resulted in best performance after ______?
  var SIZE = 1 << SHIFT;
  var MASK = SIZE - 1;

  // A consistent shared value representing "not set" which equals nothing other
  // than itself, and nothing that could be provided externally.
  var NOT_SET = {};

  // Boolean references, Rough equivalent of `bool &`.
  function MakeRef() {
    return { value: false };
  }

  function SetRef(ref) {
    if (ref) {
      ref.value = true;
    }
  }

  // A function which returns a value representing an "owner" for transient writes
  // to tries. The return value will only ever equal itself, and will not equal
  // the return of any subsequent call of this function.
  function OwnerID() {}

  function ensureSize(iter) {
    if (iter.size === undefined) {
      iter.size = iter.__iterate(returnTrue);
    }
    return iter.size;
  }

  function wrapIndex(iter, index) {
    // This implements "is array index" which the ECMAString spec defines as:
    //
    //     A String property name P is an array index if and only if
    //     ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal
    //     to 2^32−1.
    //
    // http://www.ecma-international.org/ecma-262/6.0/#sec-array-exotic-objects
    if (typeof index !== 'number') {
      var uint32Index = index >>> 0; // N >>> 0 is shorthand for ToUint32
      if ('' + uint32Index !== index || uint32Index === 4294967295) {
        return NaN;
      }
      index = uint32Index;
    }
    return index < 0 ? ensureSize(iter) + index : index;
  }

  function returnTrue() {
    return true;
  }

  function wholeSlice(begin, end, size) {
    return (
      ((begin === 0 && !isNeg(begin)) ||
        (size !== undefined && begin <= -size)) &&
      (end === undefined || (size !== undefined && end >= size))
    );
  }

  function resolveBegin(begin, size) {
    return resolveIndex(begin, size, 0);
  }

  function resolveEnd(end, size) {
    return resolveIndex(end, size, size);
  }

  function resolveIndex(index, size, defaultIndex) {
    // Sanitize indices using this shorthand for ToInt32(argument)
    // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
    return index === undefined
      ? defaultIndex
      : isNeg(index)
        ? size === Infinity
          ? size
          : Math.max(0, size + index) | 0
        : size === undefined || size === index
          ? index
          : Math.min(size, index) | 0;
  }

  function isNeg(value) {
    // Account for -0 which is negative, but not less than 0.
    return value < 0 || (value === 0 && 1 / value === -Infinity);
  }

  // Note: value is unchanged to not break immutable-devtools.
  var IS_COLLECTION_SYMBOL = '@@__IMMUTABLE_ITERABLE__@@';

  function isCollection(maybeCollection) {
    return Boolean(maybeCollection && maybeCollection[IS_COLLECTION_SYMBOL]);
  }

  var IS_KEYED_SYMBOL = '@@__IMMUTABLE_KEYED__@@';

  function isKeyed(maybeKeyed) {
    return Boolean(maybeKeyed && maybeKeyed[IS_KEYED_SYMBOL]);
  }

  var IS_INDEXED_SYMBOL = '@@__IMMUTABLE_INDEXED__@@';

  function isIndexed(maybeIndexed) {
    return Boolean(maybeIndexed && maybeIndexed[IS_INDEXED_SYMBOL]);
  }

  function isAssociative(maybeAssociative) {
    return isKeyed(maybeAssociative) || isIndexed(maybeAssociative);
  }

  var Collection = function Collection(value) {
    return isCollection(value) ? value : Seq(value);
  };

  var KeyedCollection = /*@__PURE__*/(function (Collection) {
    function KeyedCollection(value) {
      return isKeyed(value) ? value : KeyedSeq(value);
    }

    if ( Collection ) KeyedCollection.__proto__ = Collection;
    KeyedCollection.prototype = Object.create( Collection && Collection.prototype );
    KeyedCollection.prototype.constructor = KeyedCollection;

    return KeyedCollection;
  }(Collection));

  var IndexedCollection = /*@__PURE__*/(function (Collection) {
    function IndexedCollection(value) {
      return isIndexed(value) ? value : IndexedSeq(value);
    }

    if ( Collection ) IndexedCollection.__proto__ = Collection;
    IndexedCollection.prototype = Object.create( Collection && Collection.prototype );
    IndexedCollection.prototype.constructor = IndexedCollection;

    return IndexedCollection;
  }(Collection));

  var SetCollection = /*@__PURE__*/(function (Collection) {
    function SetCollection(value) {
      return isCollection(value) && !isAssociative(value) ? value : SetSeq(value);
    }

    if ( Collection ) SetCollection.__proto__ = Collection;
    SetCollection.prototype = Object.create( Collection && Collection.prototype );
    SetCollection.prototype.constructor = SetCollection;

    return SetCollection;
  }(Collection));

  Collection.Keyed = KeyedCollection;
  Collection.Indexed = IndexedCollection;
  Collection.Set = SetCollection;

  var IS_SEQ_SYMBOL = '@@__IMMUTABLE_SEQ__@@';

  function isSeq(maybeSeq) {
    return Boolean(maybeSeq && maybeSeq[IS_SEQ_SYMBOL]);
  }

  var IS_RECORD_SYMBOL = '@@__IMMUTABLE_RECORD__@@';

  function isRecord(maybeRecord) {
    return Boolean(maybeRecord && maybeRecord[IS_RECORD_SYMBOL]);
  }

  function isImmutable(maybeImmutable) {
    return isCollection(maybeImmutable) || isRecord(maybeImmutable);
  }

  var IS_ORDERED_SYMBOL = '@@__IMMUTABLE_ORDERED__@@';

  function isOrdered(maybeOrdered) {
    return Boolean(maybeOrdered && maybeOrdered[IS_ORDERED_SYMBOL]);
  }

  var ITERATE_KEYS = 0;
  var ITERATE_VALUES = 1;
  var ITERATE_ENTRIES = 2;

  var REAL_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
  var FAUX_ITERATOR_SYMBOL = '@@iterator';

  var ITERATOR_SYMBOL = REAL_ITERATOR_SYMBOL || FAUX_ITERATOR_SYMBOL;

  var Iterator = function Iterator(next) {
    this.next = next;
  };

  Iterator.prototype.toString = function toString () {
    return '[Iterator]';
  };

  Iterator.KEYS = ITERATE_KEYS;
  Iterator.VALUES = ITERATE_VALUES;
  Iterator.ENTRIES = ITERATE_ENTRIES;

  Iterator.prototype.inspect = Iterator.prototype.toSource = function() {
    return this.toString();
  };
  Iterator.prototype[ITERATOR_SYMBOL] = function() {
    return this;
  };

  function iteratorValue(type, k, v, iteratorResult) {
    var value = type === 0 ? k : type === 1 ? v : [k, v];
    iteratorResult
      ? (iteratorResult.value = value)
      : (iteratorResult = {
          value: value,
          done: false,
        });
    return iteratorResult;
  }

  function iteratorDone() {
    return { value: undefined, done: true };
  }

  function hasIterator(maybeIterable) {
    return !!getIteratorFn(maybeIterable);
  }

  function isIterator(maybeIterator) {
    return maybeIterator && typeof maybeIterator.next === 'function';
  }

  function getIterator(iterable) {
    var iteratorFn = getIteratorFn(iterable);
    return iteratorFn && iteratorFn.call(iterable);
  }

  function getIteratorFn(iterable) {
    var iteratorFn =
      iterable &&
      ((REAL_ITERATOR_SYMBOL && iterable[REAL_ITERATOR_SYMBOL]) ||
        iterable[FAUX_ITERATOR_SYMBOL]);
    if (typeof iteratorFn === 'function') {
      return iteratorFn;
    }
  }

  var hasOwnProperty = Object.prototype.hasOwnProperty;

  function isArrayLike(value) {
    if (Array.isArray(value) || typeof value === 'string') {
      return true;
    }

    return (
      value &&
      typeof value === 'object' &&
      Number.isInteger(value.length) &&
      value.length >= 0 &&
      (value.length === 0
        ? // Only {length: 0} is considered Array-like.
          Object.keys(value).length === 1
        : // An object is only Array-like if it has a property where the last value
          // in the array-like may be found (which could be undefined).
          value.hasOwnProperty(value.length - 1))
    );
  }

  var Seq = /*@__PURE__*/(function (Collection$$1) {
    function Seq(value) {
      return value === null || value === undefined
        ? emptySequence()
        : isImmutable(value)
          ? value.toSeq()
          : seqFromValue(value);
    }

    if ( Collection$$1 ) Seq.__proto__ = Collection$$1;
    Seq.prototype = Object.create( Collection$$1 && Collection$$1.prototype );
    Seq.prototype.constructor = Seq;

    Seq.prototype.toSeq = function toSeq () {
      return this;
    };

    Seq.prototype.toString = function toString () {
      return this.__toString('Seq {', '}');
    };

    Seq.prototype.cacheResult = function cacheResult () {
      if (!this._cache && this.__iterateUncached) {
        this._cache = this.entrySeq().toArray();
        this.size = this._cache.length;
      }
      return this;
    };

    // abstract __iterateUncached(fn, reverse)

    Seq.prototype.__iterate = function __iterate (fn, reverse) {
      var cache = this._cache;
      if (cache) {
        var size = cache.length;
        var i = 0;
        while (i !== size) {
          var entry = cache[reverse ? size - ++i : i++];
          if (fn(entry[1], entry[0], this) === false) {
            break;
          }
        }
        return i;
      }
      return this.__iterateUncached(fn, reverse);
    };

    // abstract __iteratorUncached(type, reverse)

    Seq.prototype.__iterator = function __iterator (type, reverse) {
      var cache = this._cache;
      if (cache) {
        var size = cache.length;
        var i = 0;
        return new Iterator(function () {
          if (i === size) {
            return iteratorDone();
          }
          var entry = cache[reverse ? size - ++i : i++];
          return iteratorValue(type, entry[0], entry[1]);
        });
      }
      return this.__iteratorUncached(type, reverse);
    };

    return Seq;
  }(Collection));

  var KeyedSeq = /*@__PURE__*/(function (Seq) {
    function KeyedSeq(value) {
      return value === null || value === undefined
        ? emptySequence().toKeyedSeq()
        : isCollection(value)
          ? isKeyed(value)
            ? value.toSeq()
            : value.fromEntrySeq()
          : isRecord(value)
            ? value.toSeq()
            : keyedSeqFromValue(value);
    }

    if ( Seq ) KeyedSeq.__proto__ = Seq;
    KeyedSeq.prototype = Object.create( Seq && Seq.prototype );
    KeyedSeq.prototype.constructor = KeyedSeq;

    KeyedSeq.prototype.toKeyedSeq = function toKeyedSeq () {
      return this;
    };

    return KeyedSeq;
  }(Seq));

  var IndexedSeq = /*@__PURE__*/(function (Seq) {
    function IndexedSeq(value) {
      return value === null || value === undefined
        ? emptySequence()
        : isCollection(value)
          ? isKeyed(value)
            ? value.entrySeq()
            : value.toIndexedSeq()
          : isRecord(value)
            ? value.toSeq().entrySeq()
            : indexedSeqFromValue(value);
    }

    if ( Seq ) IndexedSeq.__proto__ = Seq;
    IndexedSeq.prototype = Object.create( Seq && Seq.prototype );
    IndexedSeq.prototype.constructor = IndexedSeq;

    IndexedSeq.of = function of (/*...values*/) {
      return IndexedSeq(arguments);
    };

    IndexedSeq.prototype.toIndexedSeq = function toIndexedSeq () {
      return this;
    };

    IndexedSeq.prototype.toString = function toString () {
      return this.__toString('Seq [', ']');
    };

    return IndexedSeq;
  }(Seq));

  var SetSeq = /*@__PURE__*/(function (Seq) {
    function SetSeq(value) {
      return (isCollection(value) && !isAssociative(value)
        ? value
        : IndexedSeq(value)
      ).toSetSeq();
    }

    if ( Seq ) SetSeq.__proto__ = Seq;
    SetSeq.prototype = Object.create( Seq && Seq.prototype );
    SetSeq.prototype.constructor = SetSeq;

    SetSeq.of = function of (/*...values*/) {
      return SetSeq(arguments);
    };

    SetSeq.prototype.toSetSeq = function toSetSeq () {
      return this;
    };

    return SetSeq;
  }(Seq));

  Seq.isSeq = isSeq;
  Seq.Keyed = KeyedSeq;
  Seq.Set = SetSeq;
  Seq.Indexed = IndexedSeq;

  Seq.prototype[IS_SEQ_SYMBOL] = true;

  // #pragma Root Sequences

  var ArraySeq = /*@__PURE__*/(function (IndexedSeq) {
    function ArraySeq(array) {
      this._array = array;
      this.size = array.length;
    }

    if ( IndexedSeq ) ArraySeq.__proto__ = IndexedSeq;
    ArraySeq.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
    ArraySeq.prototype.constructor = ArraySeq;

    ArraySeq.prototype.get = function get (index, notSetValue) {
      return this.has(index) ? this._array[wrapIndex(this, index)] : notSetValue;
    };

    ArraySeq.prototype.__iterate = function __iterate (fn, reverse) {
      var array = this._array;
      var size = array.length;
      var i = 0;
      while (i !== size) {
        var ii = reverse ? size - ++i : i++;
        if (fn(array[ii], ii, this) === false) {
          break;
        }
      }
      return i;
    };

    ArraySeq.prototype.__iterator = function __iterator (type, reverse) {
      var array = this._array;
      var size = array.length;
      var i = 0;
      return new Iterator(function () {
        if (i === size) {
          return iteratorDone();
        }
        var ii = reverse ? size - ++i : i++;
        return iteratorValue(type, ii, array[ii]);
      });
    };

    return ArraySeq;
  }(IndexedSeq));

  var ObjectSeq = /*@__PURE__*/(function (KeyedSeq) {
    function ObjectSeq(object) {
      var keys = Object.keys(object);
      this._object = object;
      this._keys = keys;
      this.size = keys.length;
    }

    if ( KeyedSeq ) ObjectSeq.__proto__ = KeyedSeq;
    ObjectSeq.prototype = Object.create( KeyedSeq && KeyedSeq.prototype );
    ObjectSeq.prototype.constructor = ObjectSeq;

    ObjectSeq.prototype.get = function get (key, notSetValue) {
      if (notSetValue !== undefined && !this.has(key)) {
        return notSetValue;
      }
      return this._object[key];
    };

    ObjectSeq.prototype.has = function has (key) {
      return hasOwnProperty.call(this._object, key);
    };

    ObjectSeq.prototype.__iterate = function __iterate (fn, reverse) {
      var object = this._object;
      var keys = this._keys;
      var size = keys.length;
      var i = 0;
      while (i !== size) {
        var key = keys[reverse ? size - ++i : i++];
        if (fn(object[key], key, this) === false) {
          break;
        }
      }
      return i;
    };

    ObjectSeq.prototype.__iterator = function __iterator (type, reverse) {
      var object = this._object;
      var keys = this._keys;
      var size = keys.length;
      var i = 0;
      return new Iterator(function () {
        if (i === size) {
          return iteratorDone();
        }
        var key = keys[reverse ? size - ++i : i++];
        return iteratorValue(type, key, object[key]);
      });
    };

    return ObjectSeq;
  }(KeyedSeq));
  ObjectSeq.prototype[IS_ORDERED_SYMBOL] = true;

  var CollectionSeq = /*@__PURE__*/(function (IndexedSeq) {
    function CollectionSeq(collection) {
      this._collection = collection;
      this.size = collection.length || collection.size;
    }

    if ( IndexedSeq ) CollectionSeq.__proto__ = IndexedSeq;
    CollectionSeq.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
    CollectionSeq.prototype.constructor = CollectionSeq;

    CollectionSeq.prototype.__iterateUncached = function __iterateUncached (fn, reverse) {
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var collection = this._collection;
      var iterator = getIterator(collection);
      var iterations = 0;
      if (isIterator(iterator)) {
        var step;
        while (!(step = iterator.next()).done) {
          if (fn(step.value, iterations++, this) === false) {
            break;
          }
        }
      }
      return iterations;
    };

    CollectionSeq.prototype.__iteratorUncached = function __iteratorUncached (type, reverse) {
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var collection = this._collection;
      var iterator = getIterator(collection);
      if (!isIterator(iterator)) {
        return new Iterator(iteratorDone);
      }
      var iterations = 0;
      return new Iterator(function () {
        var step = iterator.next();
        return step.done ? step : iteratorValue(type, iterations++, step.value);
      });
    };

    return CollectionSeq;
  }(IndexedSeq));

  // # pragma Helper functions

  var EMPTY_SEQ;

  function emptySequence() {
    return EMPTY_SEQ || (EMPTY_SEQ = new ArraySeq([]));
  }

  function keyedSeqFromValue(value) {
    var seq = Array.isArray(value)
      ? new ArraySeq(value)
      : hasIterator(value)
        ? new CollectionSeq(value)
        : undefined;
    if (seq) {
      return seq.fromEntrySeq();
    }
    if (typeof value === 'object') {
      return new ObjectSeq(value);
    }
    throw new TypeError(
      'Expected Array or collection object of [k, v] entries, or keyed object: ' +
        value
    );
  }

  function indexedSeqFromValue(value) {
    var seq = maybeIndexedSeqFromValue(value);
    if (seq) {
      return seq;
    }
    throw new TypeError(
      'Expected Array or collection object of values: ' + value
    );
  }

  function seqFromValue(value) {
    var seq = maybeIndexedSeqFromValue(value);
    if (seq) {
      return seq;
    }
    if (typeof value === 'object') {
      return new ObjectSeq(value);
    }
    throw new TypeError(
      'Expected Array or collection object of values, or keyed object: ' + value
    );
  }

  function maybeIndexedSeqFromValue(value) {
    return isArrayLike(value)
      ? new ArraySeq(value)
      : hasIterator(value)
        ? new CollectionSeq(value)
        : undefined;
  }

  var IS_MAP_SYMBOL = '@@__IMMUTABLE_MAP__@@';

  function isMap(maybeMap) {
    return Boolean(maybeMap && maybeMap[IS_MAP_SYMBOL]);
  }

  function isOrderedMap(maybeOrderedMap) {
    return isMap(maybeOrderedMap) && isOrdered(maybeOrderedMap);
  }

  function isValueObject(maybeValue) {
    return Boolean(
      maybeValue &&
        typeof maybeValue.equals === 'function' &&
        typeof maybeValue.hashCode === 'function'
    );
  }

  /**
   * An extension of the "same-value" algorithm as [described for use by ES6 Map
   * and Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Key_equality)
   *
   * NaN is considered the same as NaN, however -0 and 0 are considered the same
   * value, which is different from the algorithm described by
   * [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is).
   *
   * This is extended further to allow Objects to describe the values they
   * represent, by way of `valueOf` or `equals` (and `hashCode`).
   *
   * Note: because of this extension, the key equality of Immutable.Map and the
   * value equality of Immutable.Set will differ from ES6 Map and Set.
   *
   * ### Defining custom values
   *
   * The easiest way to describe the value an object represents is by implementing
   * `valueOf`. For example, `Date` represents a value by returning a unix
   * timestamp for `valueOf`:
   *
   *     var date1 = new Date(1234567890000); // Fri Feb 13 2009 ...
   *     var date2 = new Date(1234567890000);
   *     date1.valueOf(); // 1234567890000
   *     assert( date1 !== date2 );
   *     assert( Immutable.is( date1, date2 ) );
   *
   * Note: overriding `valueOf` may have other implications if you use this object
   * where JavaScript expects a primitive, such as implicit string coercion.
   *
   * For more complex types, especially collections, implementing `valueOf` may
   * not be performant. An alternative is to implement `equals` and `hashCode`.
   *
   * `equals` takes another object, presumably of similar type, and returns true
   * if it is equal. Equality is symmetrical, so the same result should be
   * returned if this and the argument are flipped.
   *
   *     assert( a.equals(b) === b.equals(a) );
   *
   * `hashCode` returns a 32bit integer number representing the object which will
   * be used to determine how to store the value object in a Map or Set. You must
   * provide both or neither methods, one must not exist without the other.
   *
   * Also, an important relationship between these methods must be upheld: if two
   * values are equal, they *must* return the same hashCode. If the values are not
   * equal, they might have the same hashCode; this is called a hash collision,
   * and while undesirable for performance reasons, it is acceptable.
   *
   *     if (a.equals(b)) {
   *       assert( a.hashCode() === b.hashCode() );
   *     }
   *
   * All Immutable collections are Value Objects: they implement `equals()`
   * and `hashCode()`.
   */
  function is(valueA, valueB) {
    if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
      return true;
    }
    if (!valueA || !valueB) {
      return false;
    }
    if (
      typeof valueA.valueOf === 'function' &&
      typeof valueB.valueOf === 'function'
    ) {
      valueA = valueA.valueOf();
      valueB = valueB.valueOf();
      if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
        return true;
      }
      if (!valueA || !valueB) {
        return false;
      }
    }
    return !!(
      isValueObject(valueA) &&
      isValueObject(valueB) &&
      valueA.equals(valueB)
    );
  }

  var imul =
    typeof Math.imul === 'function' && Math.imul(0xffffffff, 2) === -2
      ? Math.imul
      : function imul(a, b) {
          a |= 0; // int
          b |= 0; // int
          var c = a & 0xffff;
          var d = b & 0xffff;
          // Shift by 0 fixes the sign on the high part.
          return (c * d + ((((a >>> 16) * d + c * (b >>> 16)) << 16) >>> 0)) | 0; // int
        };

  // v8 has an optimization for storing 31-bit signed numbers.
  // Values which have either 00 or 11 as the high order bits qualify.
  // This function drops the highest order bit in a signed number, maintaining
  // the sign bit.
  function smi(i32) {
    return ((i32 >>> 1) & 0x40000000) | (i32 & 0xbfffffff);
  }

  var defaultValueOf = Object.prototype.valueOf;

  function hash(o) {
    switch (typeof o) {
      case 'boolean':
        // The hash values for built-in constants are a 1 value for each 5-byte
        // shift region expect for the first, which encodes the value. This
        // reduces the odds of a hash collision for these common values.
        return o ? 0x42108421 : 0x42108420;
      case 'number':
        return hashNumber(o);
      case 'string':
        return o.length > STRING_HASH_CACHE_MIN_STRLEN
          ? cachedHashString(o)
          : hashString(o);
      case 'object':
      case 'function':
        if (o === null) {
          return 0x42108422;
        }
        if (typeof o.hashCode === 'function') {
          // Drop any high bits from accidentally long hash codes.
          return smi(o.hashCode(o));
        }
        if (o.valueOf !== defaultValueOf && typeof o.valueOf === 'function') {
          o = o.valueOf(o);
        }
        return hashJSObj(o);
      case 'undefined':
        return 0x42108423;
      default:
        if (typeof o.toString === 'function') {
          return hashString(o.toString());
        }
        throw new Error('Value type ' + typeof o + ' cannot be hashed.');
    }
  }

  // Compress arbitrarily large numbers into smi hashes.
  function hashNumber(n) {
    if (n !== n || n === Infinity) {
      return 0;
    }
    var hash = n | 0;
    if (hash !== n) {
      hash ^= n * 0xffffffff;
    }
    while (n > 0xffffffff) {
      n /= 0xffffffff;
      hash ^= n;
    }
    return smi(hash);
  }

  function cachedHashString(string) {
    var hashed = stringHashCache[string];
    if (hashed === undefined) {
      hashed = hashString(string);
      if (STRING_HASH_CACHE_SIZE === STRING_HASH_CACHE_MAX_SIZE) {
        STRING_HASH_CACHE_SIZE = 0;
        stringHashCache = {};
      }
      STRING_HASH_CACHE_SIZE++;
      stringHashCache[string] = hashed;
    }
    return hashed;
  }

  // http://jsperf.com/hashing-strings
  function hashString(string) {
    // This is the hash from JVM
    // The hash code for a string is computed as
    // s[0] * 31 ^ (n - 1) + s[1] * 31 ^ (n - 2) + ... + s[n - 1],
    // where s[i] is the ith character of the string and n is the length of
    // the string. We "mod" the result to make it between 0 (inclusive) and 2^31
    // (exclusive) by dropping high bits.
    var hashed = 0;
    for (var ii = 0; ii < string.length; ii++) {
      hashed = (31 * hashed + string.charCodeAt(ii)) | 0;
    }
    return smi(hashed);
  }

  function hashJSObj(obj) {
    var hashed;
    if (usingWeakMap) {
      hashed = weakMap.get(obj);
      if (hashed !== undefined) {
        return hashed;
      }
    }

    hashed = obj[UID_HASH_KEY];
    if (hashed !== undefined) {
      return hashed;
    }

    if (!canDefineProperty) {
      hashed = obj.propertyIsEnumerable && obj.propertyIsEnumerable[UID_HASH_KEY];
      if (hashed !== undefined) {
        return hashed;
      }

      hashed = getIENodeHash(obj);
      if (hashed !== undefined) {
        return hashed;
      }
    }

    hashed = ++objHashUID;
    if (objHashUID & 0x40000000) {
      objHashUID = 0;
    }

    if (usingWeakMap) {
      weakMap.set(obj, hashed);
    } else if (isExtensible !== undefined && isExtensible(obj) === false) {
      throw new Error('Non-extensible objects are not allowed as keys.');
    } else if (canDefineProperty) {
      Object.defineProperty(obj, UID_HASH_KEY, {
        enumerable: false,
        configurable: false,
        writable: false,
        value: hashed,
      });
    } else if (
      obj.propertyIsEnumerable !== undefined &&
      obj.propertyIsEnumerable === obj.constructor.prototype.propertyIsEnumerable
    ) {
      // Since we can't define a non-enumerable property on the object
      // we'll hijack one of the less-used non-enumerable properties to
      // save our hash on it. Since this is a function it will not show up in
      // `JSON.stringify` which is what we want.
      obj.propertyIsEnumerable = function() {
        return this.constructor.prototype.propertyIsEnumerable.apply(
          this,
          arguments
        );
      };
      obj.propertyIsEnumerable[UID_HASH_KEY] = hashed;
    } else if (obj.nodeType !== undefined) {
      // At this point we couldn't get the IE `uniqueID` to use as a hash
      // and we couldn't use a non-enumerable property to exploit the
      // dontEnum bug so we simply add the `UID_HASH_KEY` on the node
      // itself.
      obj[UID_HASH_KEY] = hashed;
    } else {
      throw new Error('Unable to set a non-enumerable property on object.');
    }

    return hashed;
  }

  // Get references to ES5 object methods.
  var isExtensible = Object.isExtensible;

  // True if Object.defineProperty works as expected. IE8 fails this test.
  var canDefineProperty = (function() {
    try {
      Object.defineProperty({}, '@', {});
      return true;
    } catch (e) {
      return false;
    }
  })();

  // IE has a `uniqueID` property on DOM nodes. We can construct the hash from it
  // and avoid memory leaks from the IE cloneNode bug.
  function getIENodeHash(node) {
    if (node && node.nodeType > 0) {
      switch (node.nodeType) {
        case 1: // Element
          return node.uniqueID;
        case 9: // Document
          return node.documentElement && node.documentElement.uniqueID;
      }
    }
  }

  // If possible, use a WeakMap.
  var usingWeakMap = typeof WeakMap === 'function';
  var weakMap;
  if (usingWeakMap) {
    weakMap = new WeakMap();
  }

  var objHashUID = 0;

  var UID_HASH_KEY = '__immutablehash__';
  if (typeof Symbol === 'function') {
    UID_HASH_KEY = Symbol(UID_HASH_KEY);
  }

  var STRING_HASH_CACHE_MIN_STRLEN = 16;
  var STRING_HASH_CACHE_MAX_SIZE = 255;
  var STRING_HASH_CACHE_SIZE = 0;
  var stringHashCache = {};

  var ToKeyedSequence = /*@__PURE__*/(function (KeyedSeq$$1) {
    function ToKeyedSequence(indexed, useKeys) {
      this._iter = indexed;
      this._useKeys = useKeys;
      this.size = indexed.size;
    }

    if ( KeyedSeq$$1 ) ToKeyedSequence.__proto__ = KeyedSeq$$1;
    ToKeyedSequence.prototype = Object.create( KeyedSeq$$1 && KeyedSeq$$1.prototype );
    ToKeyedSequence.prototype.constructor = ToKeyedSequence;

    ToKeyedSequence.prototype.get = function get (key, notSetValue) {
      return this._iter.get(key, notSetValue);
    };

    ToKeyedSequence.prototype.has = function has (key) {
      return this._iter.has(key);
    };

    ToKeyedSequence.prototype.valueSeq = function valueSeq () {
      return this._iter.valueSeq();
    };

    ToKeyedSequence.prototype.reverse = function reverse () {
      var this$1 = this;

      var reversedSequence = reverseFactory(this, true);
      if (!this._useKeys) {
        reversedSequence.valueSeq = function () { return this$1._iter.toSeq().reverse(); };
      }
      return reversedSequence;
    };

    ToKeyedSequence.prototype.map = function map (mapper, context) {
      var this$1 = this;

      var mappedSequence = mapFactory(this, mapper, context);
      if (!this._useKeys) {
        mappedSequence.valueSeq = function () { return this$1._iter.toSeq().map(mapper, context); };
      }
      return mappedSequence;
    };

    ToKeyedSequence.prototype.__iterate = function __iterate (fn, reverse) {
      var this$1 = this;

      return this._iter.__iterate(function (v, k) { return fn(v, k, this$1); }, reverse);
    };

    ToKeyedSequence.prototype.__iterator = function __iterator (type, reverse) {
      return this._iter.__iterator(type, reverse);
    };

    return ToKeyedSequence;
  }(KeyedSeq));
  ToKeyedSequence.prototype[IS_ORDERED_SYMBOL] = true;

  var ToIndexedSequence = /*@__PURE__*/(function (IndexedSeq$$1) {
    function ToIndexedSequence(iter) {
      this._iter = iter;
      this.size = iter.size;
    }

    if ( IndexedSeq$$1 ) ToIndexedSequence.__proto__ = IndexedSeq$$1;
    ToIndexedSequence.prototype = Object.create( IndexedSeq$$1 && IndexedSeq$$1.prototype );
    ToIndexedSequence.prototype.constructor = ToIndexedSequence;

    ToIndexedSequence.prototype.includes = function includes (value) {
      return this._iter.includes(value);
    };

    ToIndexedSequence.prototype.__iterate = function __iterate (fn, reverse) {
      var this$1 = this;

      var i = 0;
      reverse && ensureSize(this);
      return this._iter.__iterate(
        function (v) { return fn(v, reverse ? this$1.size - ++i : i++, this$1); },
        reverse
      );
    };

    ToIndexedSequence.prototype.__iterator = function __iterator (type, reverse) {
      var this$1 = this;

      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      var i = 0;
      reverse && ensureSize(this);
      return new Iterator(function () {
        var step = iterator.next();
        return step.done
          ? step
          : iteratorValue(
              type,
              reverse ? this$1.size - ++i : i++,
              step.value,
              step
            );
      });
    };

    return ToIndexedSequence;
  }(IndexedSeq));

  var ToSetSequence = /*@__PURE__*/(function (SetSeq$$1) {
    function ToSetSequence(iter) {
      this._iter = iter;
      this.size = iter.size;
    }

    if ( SetSeq$$1 ) ToSetSequence.__proto__ = SetSeq$$1;
    ToSetSequence.prototype = Object.create( SetSeq$$1 && SetSeq$$1.prototype );
    ToSetSequence.prototype.constructor = ToSetSequence;

    ToSetSequence.prototype.has = function has (key) {
      return this._iter.includes(key);
    };

    ToSetSequence.prototype.__iterate = function __iterate (fn, reverse) {
      var this$1 = this;

      return this._iter.__iterate(function (v) { return fn(v, v, this$1); }, reverse);
    };

    ToSetSequence.prototype.__iterator = function __iterator (type, reverse) {
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      return new Iterator(function () {
        var step = iterator.next();
        return step.done
          ? step
          : iteratorValue(type, step.value, step.value, step);
      });
    };

    return ToSetSequence;
  }(SetSeq));

  var FromEntriesSequence = /*@__PURE__*/(function (KeyedSeq$$1) {
    function FromEntriesSequence(entries) {
      this._iter = entries;
      this.size = entries.size;
    }

    if ( KeyedSeq$$1 ) FromEntriesSequence.__proto__ = KeyedSeq$$1;
    FromEntriesSequence.prototype = Object.create( KeyedSeq$$1 && KeyedSeq$$1.prototype );
    FromEntriesSequence.prototype.constructor = FromEntriesSequence;

    FromEntriesSequence.prototype.entrySeq = function entrySeq () {
      return this._iter.toSeq();
    };

    FromEntriesSequence.prototype.__iterate = function __iterate (fn, reverse) {
      var this$1 = this;

      return this._iter.__iterate(function (entry) {
        // Check if entry exists first so array access doesn't throw for holes
        // in the parent iteration.
        if (entry) {
          validateEntry(entry);
          var indexedCollection = isCollection(entry);
          return fn(
            indexedCollection ? entry.get(1) : entry[1],
            indexedCollection ? entry.get(0) : entry[0],
            this$1
          );
        }
      }, reverse);
    };

    FromEntriesSequence.prototype.__iterator = function __iterator (type, reverse) {
      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
      return new Iterator(function () {
        while (true) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          var entry = step.value;
          // Check if entry exists first so array access doesn't throw for holes
          // in the parent iteration.
          if (entry) {
            validateEntry(entry);
            var indexedCollection = isCollection(entry);
            return iteratorValue(
              type,
              indexedCollection ? entry.get(0) : entry[0],
              indexedCollection ? entry.get(1) : entry[1],
              step
            );
          }
        }
      });
    };

    return FromEntriesSequence;
  }(KeyedSeq));

  ToIndexedSequence.prototype.cacheResult = ToKeyedSequence.prototype.cacheResult = ToSetSequence.prototype.cacheResult = FromEntriesSequence.prototype.cacheResult = cacheResultThrough;

  function flipFactory(collection) {
    var flipSequence = makeSequence(collection);
    flipSequence._iter = collection;
    flipSequence.size = collection.size;
    flipSequence.flip = function () { return collection; };
    flipSequence.reverse = function() {
      var reversedSequence = collection.reverse.apply(this); // super.reverse()
      reversedSequence.flip = function () { return collection.reverse(); };
      return reversedSequence;
    };
    flipSequence.has = function (key) { return collection.includes(key); };
    flipSequence.includes = function (key) { return collection.has(key); };
    flipSequence.cacheResult = cacheResultThrough;
    flipSequence.__iterateUncached = function(fn, reverse) {
      var this$1 = this;

      return collection.__iterate(function (v, k) { return fn(k, v, this$1) !== false; }, reverse);
    };
    flipSequence.__iteratorUncached = function(type, reverse) {
      if (type === ITERATE_ENTRIES) {
        var iterator = collection.__iterator(type, reverse);
        return new Iterator(function () {
          var step = iterator.next();
          if (!step.done) {
            var k = step.value[0];
            step.value[0] = step.value[1];
            step.value[1] = k;
          }
          return step;
        });
      }
      return collection.__iterator(
        type === ITERATE_VALUES ? ITERATE_KEYS : ITERATE_VALUES,
        reverse
      );
    };
    return flipSequence;
  }

  function mapFactory(collection, mapper, context) {
    var mappedSequence = makeSequence(collection);
    mappedSequence.size = collection.size;
    mappedSequence.has = function (key) { return collection.has(key); };
    mappedSequence.get = function (key, notSetValue) {
      var v = collection.get(key, NOT_SET);
      return v === NOT_SET
        ? notSetValue
        : mapper.call(context, v, key, collection);
    };
    mappedSequence.__iterateUncached = function(fn, reverse) {
      var this$1 = this;

      return collection.__iterate(
        function (v, k, c) { return fn(mapper.call(context, v, k, c), k, this$1) !== false; },
        reverse
      );
    };
    mappedSequence.__iteratorUncached = function(type, reverse) {
      var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
      return new Iterator(function () {
        var step = iterator.next();
        if (step.done) {
          return step;
        }
        var entry = step.value;
        var key = entry[0];
        return iteratorValue(
          type,
          key,
          mapper.call(context, entry[1], key, collection),
          step
        );
      });
    };
    return mappedSequence;
  }

  function reverseFactory(collection, useKeys) {
    var this$1 = this;

    var reversedSequence = makeSequence(collection);
    reversedSequence._iter = collection;
    reversedSequence.size = collection.size;
    reversedSequence.reverse = function () { return collection; };
    if (collection.flip) {
      reversedSequence.flip = function() {
        var flipSequence = flipFactory(collection);
        flipSequence.reverse = function () { return collection.flip(); };
        return flipSequence;
      };
    }
    reversedSequence.get = function (key, notSetValue) { return collection.get(useKeys ? key : -1 - key, notSetValue); };
    reversedSequence.has = function (key) { return collection.has(useKeys ? key : -1 - key); };
    reversedSequence.includes = function (value) { return collection.includes(value); };
    reversedSequence.cacheResult = cacheResultThrough;
    reversedSequence.__iterate = function(fn, reverse) {
      var this$1 = this;

      var i = 0;
      reverse && ensureSize(collection);
      return collection.__iterate(
        function (v, k) { return fn(v, useKeys ? k : reverse ? this$1.size - ++i : i++, this$1); },
        !reverse
      );
    };
    reversedSequence.__iterator = function (type, reverse) {
      var i = 0;
      reverse && ensureSize(collection);
      var iterator = collection.__iterator(ITERATE_ENTRIES, !reverse);
      return new Iterator(function () {
        var step = iterator.next();
        if (step.done) {
          return step;
        }
        var entry = step.value;
        return iteratorValue(
          type,
          useKeys ? entry[0] : reverse ? this$1.size - ++i : i++,
          entry[1],
          step
        );
      });
    };
    return reversedSequence;
  }

  function filterFactory(collection, predicate, context, useKeys) {
    var filterSequence = makeSequence(collection);
    if (useKeys) {
      filterSequence.has = function (key) {
        var v = collection.get(key, NOT_SET);
        return v !== NOT_SET && !!predicate.call(context, v, key, collection);
      };
      filterSequence.get = function (key, notSetValue) {
        var v = collection.get(key, NOT_SET);
        return v !== NOT_SET && predicate.call(context, v, key, collection)
          ? v
          : notSetValue;
      };
    }
    filterSequence.__iterateUncached = function(fn, reverse) {
      var this$1 = this;

      var iterations = 0;
      collection.__iterate(function (v, k, c) {
        if (predicate.call(context, v, k, c)) {
          iterations++;
          return fn(v, useKeys ? k : iterations - 1, this$1);
        }
      }, reverse);
      return iterations;
    };
    filterSequence.__iteratorUncached = function(type, reverse) {
      var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
      var iterations = 0;
      return new Iterator(function () {
        while (true) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          var entry = step.value;
          var key = entry[0];
          var value = entry[1];
          if (predicate.call(context, value, key, collection)) {
            return iteratorValue(type, useKeys ? key : iterations++, value, step);
          }
        }
      });
    };
    return filterSequence;
  }

  function countByFactory(collection, grouper, context) {
    var groups = Map().asMutable();
    collection.__iterate(function (v, k) {
      groups.update(grouper.call(context, v, k, collection), 0, function (a) { return a + 1; });
    });
    return groups.asImmutable();
  }

  function groupByFactory(collection, grouper, context) {
    var isKeyedIter = isKeyed(collection);
    var groups = (isOrdered(collection) ? OrderedMap() : Map()).asMutable();
    collection.__iterate(function (v, k) {
      groups.update(
        grouper.call(context, v, k, collection),
        function (a) { return ((a = a || []), a.push(isKeyedIter ? [k, v] : v), a); }
      );
    });
    var coerce = collectionClass(collection);
    return groups.map(function (arr) { return reify(collection, coerce(arr)); }).asImmutable();
  }

  function sliceFactory(collection, begin, end, useKeys) {
    var originalSize = collection.size;

    if (wholeSlice(begin, end, originalSize)) {
      return collection;
    }

    var resolvedBegin = resolveBegin(begin, originalSize);
    var resolvedEnd = resolveEnd(end, originalSize);

    // begin or end will be NaN if they were provided as negative numbers and
    // this collection's size is unknown. In that case, cache first so there is
    // a known size and these do not resolve to NaN.
    if (resolvedBegin !== resolvedBegin || resolvedEnd !== resolvedEnd) {
      return sliceFactory(collection.toSeq().cacheResult(), begin, end, useKeys);
    }

    // Note: resolvedEnd is undefined when the original sequence's length is
    // unknown and this slice did not supply an end and should contain all
    // elements after resolvedBegin.
    // In that case, resolvedSize will be NaN and sliceSize will remain undefined.
    var resolvedSize = resolvedEnd - resolvedBegin;
    var sliceSize;
    if (resolvedSize === resolvedSize) {
      sliceSize = resolvedSize < 0 ? 0 : resolvedSize;
    }

    var sliceSeq = makeSequence(collection);

    // If collection.size is undefined, the size of the realized sliceSeq is
    // unknown at this point unless the number of items to slice is 0
    sliceSeq.size =
      sliceSize === 0 ? sliceSize : (collection.size && sliceSize) || undefined;

    if (!useKeys && isSeq(collection) && sliceSize >= 0) {
      sliceSeq.get = function(index, notSetValue) {
        index = wrapIndex(this, index);
        return index >= 0 && index < sliceSize
          ? collection.get(index + resolvedBegin, notSetValue)
          : notSetValue;
      };
    }

    sliceSeq.__iterateUncached = function(fn, reverse) {
      var this$1 = this;

      if (sliceSize === 0) {
        return 0;
      }
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var skipped = 0;
      var isSkipping = true;
      var iterations = 0;
      collection.__iterate(function (v, k) {
        if (!(isSkipping && (isSkipping = skipped++ < resolvedBegin))) {
          iterations++;
          return (
            fn(v, useKeys ? k : iterations - 1, this$1) !== false &&
            iterations !== sliceSize
          );
        }
      });
      return iterations;
    };

    sliceSeq.__iteratorUncached = function(type, reverse) {
      if (sliceSize !== 0 && reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      // Don't bother instantiating parent iterator if taking 0.
      if (sliceSize === 0) {
        return new Iterator(iteratorDone);
      }
      var iterator = collection.__iterator(type, reverse);
      var skipped = 0;
      var iterations = 0;
      return new Iterator(function () {
        while (skipped++ < resolvedBegin) {
          iterator.next();
        }
        if (++iterations > sliceSize) {
          return iteratorDone();
        }
        var step = iterator.next();
        if (useKeys || type === ITERATE_VALUES || step.done) {
          return step;
        }
        if (type === ITERATE_KEYS) {
          return iteratorValue(type, iterations - 1, undefined, step);
        }
        return iteratorValue(type, iterations - 1, step.value[1], step);
      });
    };

    return sliceSeq;
  }

  function takeWhileFactory(collection, predicate, context) {
    var takeSequence = makeSequence(collection);
    takeSequence.__iterateUncached = function(fn, reverse) {
      var this$1 = this;

      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterations = 0;
      collection.__iterate(
        function (v, k, c) { return predicate.call(context, v, k, c) && ++iterations && fn(v, k, this$1); }
      );
      return iterations;
    };
    takeSequence.__iteratorUncached = function(type, reverse) {
      var this$1 = this;

      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
      var iterating = true;
      return new Iterator(function () {
        if (!iterating) {
          return iteratorDone();
        }
        var step = iterator.next();
        if (step.done) {
          return step;
        }
        var entry = step.value;
        var k = entry[0];
        var v = entry[1];
        if (!predicate.call(context, v, k, this$1)) {
          iterating = false;
          return iteratorDone();
        }
        return type === ITERATE_ENTRIES ? step : iteratorValue(type, k, v, step);
      });
    };
    return takeSequence;
  }

  function skipWhileFactory(collection, predicate, context, useKeys) {
    var skipSequence = makeSequence(collection);
    skipSequence.__iterateUncached = function(fn, reverse) {
      var this$1 = this;

      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var isSkipping = true;
      var iterations = 0;
      collection.__iterate(function (v, k, c) {
        if (!(isSkipping && (isSkipping = predicate.call(context, v, k, c)))) {
          iterations++;
          return fn(v, useKeys ? k : iterations - 1, this$1);
        }
      });
      return iterations;
    };
    skipSequence.__iteratorUncached = function(type, reverse) {
      var this$1 = this;

      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
      var skipping = true;
      var iterations = 0;
      return new Iterator(function () {
        var step;
        var k;
        var v;
        do {
          step = iterator.next();
          if (step.done) {
            if (useKeys || type === ITERATE_VALUES) {
              return step;
            }
            if (type === ITERATE_KEYS) {
              return iteratorValue(type, iterations++, undefined, step);
            }
            return iteratorValue(type, iterations++, step.value[1], step);
          }
          var entry = step.value;
          k = entry[0];
          v = entry[1];
          skipping && (skipping = predicate.call(context, v, k, this$1));
        } while (skipping);
        return type === ITERATE_ENTRIES ? step : iteratorValue(type, k, v, step);
      });
    };
    return skipSequence;
  }

  function concatFactory(collection, values) {
    var isKeyedCollection = isKeyed(collection);
    var iters = [collection]
      .concat(values)
      .map(function (v) {
        if (!isCollection(v)) {
          v = isKeyedCollection
            ? keyedSeqFromValue(v)
            : indexedSeqFromValue(Array.isArray(v) ? v : [v]);
        } else if (isKeyedCollection) {
          v = KeyedCollection(v);
        }
        return v;
      })
      .filter(function (v) { return v.size !== 0; });

    if (iters.length === 0) {
      return collection;
    }

    if (iters.length === 1) {
      var singleton = iters[0];
      if (
        singleton === collection ||
        (isKeyedCollection && isKeyed(singleton)) ||
        (isIndexed(collection) && isIndexed(singleton))
      ) {
        return singleton;
      }
    }

    var concatSeq = new ArraySeq(iters);
    if (isKeyedCollection) {
      concatSeq = concatSeq.toKeyedSeq();
    } else if (!isIndexed(collection)) {
      concatSeq = concatSeq.toSetSeq();
    }
    concatSeq = concatSeq.flatten(true);
    concatSeq.size = iters.reduce(function (sum, seq) {
      if (sum !== undefined) {
        var size = seq.size;
        if (size !== undefined) {
          return sum + size;
        }
      }
    }, 0);
    return concatSeq;
  }

  function flattenFactory(collection, depth, useKeys) {
    var flatSequence = makeSequence(collection);
    flatSequence.__iterateUncached = function(fn, reverse) {
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterations = 0;
      var stopped = false;
      function flatDeep(iter, currentDepth) {
        iter.__iterate(function (v, k) {
          if ((!depth || currentDepth < depth) && isCollection(v)) {
            flatDeep(v, currentDepth + 1);
          } else {
            iterations++;
            if (fn(v, useKeys ? k : iterations - 1, flatSequence) === false) {
              stopped = true;
            }
          }
          return !stopped;
        }, reverse);
      }
      flatDeep(collection, 0);
      return iterations;
    };
    flatSequence.__iteratorUncached = function(type, reverse) {
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = collection.__iterator(type, reverse);
      var stack = [];
      var iterations = 0;
      return new Iterator(function () {
        while (iterator) {
          var step = iterator.next();
          if (step.done !== false) {
            iterator = stack.pop();
            continue;
          }
          var v = step.value;
          if (type === ITERATE_ENTRIES) {
            v = v[1];
          }
          if ((!depth || stack.length < depth) && isCollection(v)) {
            stack.push(iterator);
            iterator = v.__iterator(type, reverse);
          } else {
            return useKeys ? step : iteratorValue(type, iterations++, v, step);
          }
        }
        return iteratorDone();
      });
    };
    return flatSequence;
  }

  function flatMapFactory(collection, mapper, context) {
    var coerce = collectionClass(collection);
    return collection
      .toSeq()
      .map(function (v, k) { return coerce(mapper.call(context, v, k, collection)); })
      .flatten(true);
  }

  function interposeFactory(collection, separator) {
    var interposedSequence = makeSequence(collection);
    interposedSequence.size = collection.size && collection.size * 2 - 1;
    interposedSequence.__iterateUncached = function(fn, reverse) {
      var this$1 = this;

      var iterations = 0;
      collection.__iterate(
        function (v) { return (!iterations || fn(separator, iterations++, this$1) !== false) &&
          fn(v, iterations++, this$1) !== false; },
        reverse
      );
      return iterations;
    };
    interposedSequence.__iteratorUncached = function(type, reverse) {
      var iterator = collection.__iterator(ITERATE_VALUES, reverse);
      var iterations = 0;
      var step;
      return new Iterator(function () {
        if (!step || iterations % 2) {
          step = iterator.next();
          if (step.done) {
            return step;
          }
        }
        return iterations % 2
          ? iteratorValue(type, iterations++, separator)
          : iteratorValue(type, iterations++, step.value, step);
      });
    };
    return interposedSequence;
  }

  function sortFactory(collection, comparator, mapper) {
    if (!comparator) {
      comparator = defaultComparator;
    }
    var isKeyedCollection = isKeyed(collection);
    var index = 0;
    var entries = collection
      .toSeq()
      .map(function (v, k) { return [k, v, index++, mapper ? mapper(v, k, collection) : v]; })
      .valueSeq()
      .toArray();
    entries.sort(function (a, b) { return comparator(a[3], b[3]) || a[2] - b[2]; }).forEach(
      isKeyedCollection
        ? function (v, i) {
            entries[i].length = 2;
          }
        : function (v, i) {
            entries[i] = v[1];
          }
    );
    return isKeyedCollection
      ? KeyedSeq(entries)
      : isIndexed(collection)
        ? IndexedSeq(entries)
        : SetSeq(entries);
  }

  function maxFactory(collection, comparator, mapper) {
    if (!comparator) {
      comparator = defaultComparator;
    }
    if (mapper) {
      var entry = collection
        .toSeq()
        .map(function (v, k) { return [v, mapper(v, k, collection)]; })
        .reduce(function (a, b) { return (maxCompare(comparator, a[1], b[1]) ? b : a); });
      return entry && entry[0];
    }
    return collection.reduce(function (a, b) { return (maxCompare(comparator, a, b) ? b : a); });
  }

  function maxCompare(comparator, a, b) {
    var comp = comparator(b, a);
    // b is considered the new max if the comparator declares them equal, but
    // they are not equal and b is in fact a nullish value.
    return (
      (comp === 0 && b !== a && (b === undefined || b === null || b !== b)) ||
      comp > 0
    );
  }

  function zipWithFactory(keyIter, zipper, iters, zipAll) {
    var zipSequence = makeSequence(keyIter);
    var sizes = new ArraySeq(iters).map(function (i) { return i.size; });
    zipSequence.size = zipAll ? sizes.max() : sizes.min();
    // Note: this a generic base implementation of __iterate in terms of
    // __iterator which may be more generically useful in the future.
    zipSequence.__iterate = function(fn, reverse) {
      /* generic:
      var iterator = this.__iterator(ITERATE_ENTRIES, reverse);
      var step;
      var iterations = 0;
      while (!(step = iterator.next()).done) {
        iterations++;
        if (fn(step.value[1], step.value[0], this) === false) {
          break;
        }
      }
      return iterations;
      */
      // indexed:
      var iterator = this.__iterator(ITERATE_VALUES, reverse);
      var step;
      var iterations = 0;
      while (!(step = iterator.next()).done) {
        if (fn(step.value, iterations++, this) === false) {
          break;
        }
      }
      return iterations;
    };
    zipSequence.__iteratorUncached = function(type, reverse) {
      var iterators = iters.map(
        function (i) { return ((i = Collection(i)), getIterator(reverse ? i.reverse() : i)); }
      );
      var iterations = 0;
      var isDone = false;
      return new Iterator(function () {
        var steps;
        if (!isDone) {
          steps = iterators.map(function (i) { return i.next(); });
          isDone = zipAll ? steps.every(function (s) { return s.done; }) : steps.some(function (s) { return s.done; });
        }
        if (isDone) {
          return iteratorDone();
        }
        return iteratorValue(
          type,
          iterations++,
          zipper.apply(null, steps.map(function (s) { return s.value; }))
        );
      });
    };
    return zipSequence;
  }

  // #pragma Helper Functions

  function reify(iter, seq) {
    return iter === seq ? iter : isSeq(iter) ? seq : iter.constructor(seq);
  }

  function validateEntry(entry) {
    if (entry !== Object(entry)) {
      throw new TypeError('Expected [K, V] tuple: ' + entry);
    }
  }

  function collectionClass(collection) {
    return isKeyed(collection)
      ? KeyedCollection
      : isIndexed(collection)
        ? IndexedCollection
        : SetCollection;
  }

  function makeSequence(collection) {
    return Object.create(
      (isKeyed(collection)
        ? KeyedSeq
        : isIndexed(collection)
          ? IndexedSeq
          : SetSeq
      ).prototype
    );
  }

  function cacheResultThrough() {
    if (this._iter.cacheResult) {
      this._iter.cacheResult();
      this.size = this._iter.size;
      return this;
    }
    return Seq.prototype.cacheResult.call(this);
  }

  function defaultComparator(a, b) {
    if (a === undefined && b === undefined) {
      return 0;
    }

    if (a === undefined) {
      return 1;
    }

    if (b === undefined) {
      return -1;
    }

    return a > b ? 1 : a < b ? -1 : 0;
  }

  // http://jsperf.com/copy-array-inline
  function arrCopy(arr, offset) {
    offset = offset || 0;
    var len = Math.max(0, arr.length - offset);
    var newArr = new Array(len);
    for (var ii = 0; ii < len; ii++) {
      newArr[ii] = arr[ii + offset];
    }
    return newArr;
  }

  function invariant(condition, error) {
    if (!condition) { throw new Error(error); }
  }

  function assertNotInfinite(size) {
    invariant(
      size !== Infinity,
      'Cannot perform this action with an infinite size.'
    );
  }

  function coerceKeyPath(keyPath) {
    if (isArrayLike(keyPath) && typeof keyPath !== 'string') {
      return keyPath;
    }
    if (isOrdered(keyPath)) {
      return keyPath.toArray();
    }
    throw new TypeError(
      'Invalid keyPath: expected Ordered Collection or Array: ' + keyPath
    );
  }

  function isPlainObj(value) {
    return (
      value &&
      (typeof value.constructor !== 'function' ||
        value.constructor.name === 'Object')
    );
  }

  /**
   * Returns true if the value is a potentially-persistent data structure, either
   * provided by Immutable.js or a plain Array or Object.
   */
  function isDataStructure(value) {
    return (
      typeof value === 'object' &&
      (isImmutable(value) || Array.isArray(value) || isPlainObj(value))
    );
  }

  /**
   * Converts a value to a string, adding quotes if a string was provided.
   */
  function quoteString(value) {
    try {
      return typeof value === 'string' ? JSON.stringify(value) : String(value);
    } catch (_ignoreError) {
      return JSON.stringify(value);
    }
  }

  function has(collection, key) {
    return isImmutable(collection)
      ? collection.has(key)
      : isDataStructure(collection) && hasOwnProperty.call(collection, key);
  }

  function get(collection, key, notSetValue) {
    return isImmutable(collection)
      ? collection.get(key, notSetValue)
      : !has(collection, key)
        ? notSetValue
        : typeof collection.get === 'function'
          ? collection.get(key)
          : collection[key];
  }

  function shallowCopy(from) {
    if (Array.isArray(from)) {
      return arrCopy(from);
    }
    var to = {};
    for (var key in from) {
      if (hasOwnProperty.call(from, key)) {
        to[key] = from[key];
      }
    }
    return to;
  }

  function remove(collection, key) {
    if (!isDataStructure(collection)) {
      throw new TypeError(
        'Cannot update non-data-structure value: ' + collection
      );
    }
    if (isImmutable(collection)) {
      if (!collection.remove) {
        throw new TypeError(
          'Cannot update immutable value without .remove() method: ' + collection
        );
      }
      return collection.remove(key);
    }
    if (!hasOwnProperty.call(collection, key)) {
      return collection;
    }
    var collectionCopy = shallowCopy(collection);
    if (Array.isArray(collectionCopy)) {
      collectionCopy.splice(key, 1);
    } else {
      delete collectionCopy[key];
    }
    return collectionCopy;
  }

  function set(collection, key, value) {
    if (!isDataStructure(collection)) {
      throw new TypeError(
        'Cannot update non-data-structure value: ' + collection
      );
    }
    if (isImmutable(collection)) {
      if (!collection.set) {
        throw new TypeError(
          'Cannot update immutable value without .set() method: ' + collection
        );
      }
      return collection.set(key, value);
    }
    if (hasOwnProperty.call(collection, key) && value === collection[key]) {
      return collection;
    }
    var collectionCopy = shallowCopy(collection);
    collectionCopy[key] = value;
    return collectionCopy;
  }

  function updateIn(collection, keyPath, notSetValue, updater) {
    if (!updater) {
      updater = notSetValue;
      notSetValue = undefined;
    }
    var updatedValue = updateInDeeply(
      isImmutable(collection),
      collection,
      coerceKeyPath(keyPath),
      0,
      notSetValue,
      updater
    );
    return updatedValue === NOT_SET ? notSetValue : updatedValue;
  }

  function updateInDeeply(
    inImmutable,
    existing,
    keyPath,
    i,
    notSetValue,
    updater
  ) {
    var wasNotSet = existing === NOT_SET;
    if (i === keyPath.length) {
      var existingValue = wasNotSet ? notSetValue : existing;
      var newValue = updater(existingValue);
      return newValue === existingValue ? existing : newValue;
    }
    if (!wasNotSet && !isDataStructure(existing)) {
      throw new TypeError(
        'Cannot update within non-data-structure value in path [' +
          keyPath.slice(0, i).map(quoteString) +
          ']: ' +
          existing
      );
    }
    var key = keyPath[i];
    var nextExisting = wasNotSet ? NOT_SET : get(existing, key, NOT_SET);
    var nextUpdated = updateInDeeply(
      nextExisting === NOT_SET ? inImmutable : isImmutable(nextExisting),
      nextExisting,
      keyPath,
      i + 1,
      notSetValue,
      updater
    );
    return nextUpdated === nextExisting
      ? existing
      : nextUpdated === NOT_SET
        ? remove(existing, key)
        : set(
            wasNotSet ? (inImmutable ? emptyMap() : {}) : existing,
            key,
            nextUpdated
          );
  }

  function setIn(collection, keyPath, value) {
    return updateIn(collection, keyPath, NOT_SET, function () { return value; });
  }

  function setIn$1(keyPath, v) {
    return setIn(this, keyPath, v);
  }

  function removeIn(collection, keyPath) {
    return updateIn(collection, keyPath, function () { return NOT_SET; });
  }

  function deleteIn(keyPath) {
    return removeIn(this, keyPath);
  }

  function update(collection, key, notSetValue, updater) {
    return updateIn(collection, [key], notSetValue, updater);
  }

  function update$1(key, notSetValue, updater) {
    return arguments.length === 1
      ? key(this)
      : update(this, key, notSetValue, updater);
  }

  function updateIn$1(keyPath, notSetValue, updater) {
    return updateIn(this, keyPath, notSetValue, updater);
  }

  function merge() {
    var iters = [], len = arguments.length;
    while ( len-- ) iters[ len ] = arguments[ len ];

    return mergeIntoKeyedWith(this, iters);
  }

  function mergeWith(merger) {
    var iters = [], len = arguments.length - 1;
    while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];

    if (typeof merger !== 'function') {
      throw new TypeError('Invalid merger function: ' + merger);
    }
    return mergeIntoKeyedWith(this, iters, merger);
  }

  function mergeIntoKeyedWith(collection, collections, merger) {
    var iters = [];
    for (var ii = 0; ii < collections.length; ii++) {
      var collection$1 = KeyedCollection(collections[ii]);
      if (collection$1.size !== 0) {
        iters.push(collection$1);
      }
    }
    if (iters.length === 0) {
      return collection;
    }
    if (
      collection.toSeq().size === 0 &&
      !collection.__ownerID &&
      iters.length === 1
    ) {
      return collection.constructor(iters[0]);
    }
    return collection.withMutations(function (collection) {
      var mergeIntoCollection = merger
        ? function (value, key) {
            update(
              collection,
              key,
              NOT_SET,
              function (oldVal) { return (oldVal === NOT_SET ? value : merger(oldVal, value, key)); }
            );
          }
        : function (value, key) {
            collection.set(key, value);
          };
      for (var ii = 0; ii < iters.length; ii++) {
        iters[ii].forEach(mergeIntoCollection);
      }
    });
  }

  function merge$1(collection) {
    var sources = [], len = arguments.length - 1;
    while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];

    return mergeWithSources(collection, sources);
  }

  function mergeWith$1(merger, collection) {
    var sources = [], len = arguments.length - 2;
    while ( len-- > 0 ) sources[ len ] = arguments[ len + 2 ];

    return mergeWithSources(collection, sources, merger);
  }

  function mergeDeep(collection) {
    var sources = [], len = arguments.length - 1;
    while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];

    return mergeDeepWithSources(collection, sources);
  }

  function mergeDeepWith(merger, collection) {
    var sources = [], len = arguments.length - 2;
    while ( len-- > 0 ) sources[ len ] = arguments[ len + 2 ];

    return mergeDeepWithSources(collection, sources, merger);
  }

  function mergeDeepWithSources(collection, sources, merger) {
    return mergeWithSources(collection, sources, deepMergerWith(merger));
  }

  function mergeWithSources(collection, sources, merger) {
    if (!isDataStructure(collection)) {
      throw new TypeError(
        'Cannot merge into non-data-structure value: ' + collection
      );
    }
    if (isImmutable(collection)) {
      return typeof merger === 'function' && collection.mergeWith
        ? collection.mergeWith.apply(collection, [ merger ].concat( sources ))
        : collection.merge
          ? collection.merge.apply(collection, sources)
          : collection.concat.apply(collection, sources);
    }
    var isArray = Array.isArray(collection);
    var merged = collection;
    var Collection$$1 = isArray ? IndexedCollection : KeyedCollection;
    var mergeItem = isArray
      ? function (value) {
          // Copy on write
          if (merged === collection) {
            merged = shallowCopy(merged);
          }
          merged.push(value);
        }
      : function (value, key) {
          var hasVal = hasOwnProperty.call(merged, key);
          var nextVal =
            hasVal && merger ? merger(merged[key], value, key) : value;
          if (!hasVal || nextVal !== merged[key]) {
            // Copy on write
            if (merged === collection) {
              merged = shallowCopy(merged);
            }
            merged[key] = nextVal;
          }
        };
    for (var i = 0; i < sources.length; i++) {
      Collection$$1(sources[i]).forEach(mergeItem);
    }
    return merged;
  }

  function deepMergerWith(merger) {
    function deepMerger(oldValue, newValue, key) {
      return isDataStructure(oldValue) && isDataStructure(newValue)
        ? mergeWithSources(oldValue, [newValue], deepMerger)
        : merger
          ? merger(oldValue, newValue, key)
          : newValue;
    }
    return deepMerger;
  }

  function mergeDeep$1() {
    var iters = [], len = arguments.length;
    while ( len-- ) iters[ len ] = arguments[ len ];

    return mergeDeepWithSources(this, iters);
  }

  function mergeDeepWith$1(merger) {
    var iters = [], len = arguments.length - 1;
    while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];

    return mergeDeepWithSources(this, iters, merger);
  }

  function mergeIn(keyPath) {
    var iters = [], len = arguments.length - 1;
    while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];

    return updateIn(this, keyPath, emptyMap(), function (m) { return mergeWithSources(m, iters); });
  }

  function mergeDeepIn(keyPath) {
    var iters = [], len = arguments.length - 1;
    while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];

    return updateIn(this, keyPath, emptyMap(), function (m) { return mergeDeepWithSources(m, iters); }
    );
  }

  function withMutations(fn) {
    var mutable = this.asMutable();
    fn(mutable);
    return mutable.wasAltered() ? mutable.__ensureOwner(this.__ownerID) : this;
  }

  function asMutable() {
    return this.__ownerID ? this : this.__ensureOwner(new OwnerID());
  }

  function asImmutable() {
    return this.__ensureOwner();
  }

  function wasAltered() {
    return this.__altered;
  }

  var Map = /*@__PURE__*/(function (KeyedCollection$$1) {
    function Map(value) {
      return value === null || value === undefined
        ? emptyMap()
        : isMap(value) && !isOrdered(value)
          ? value
          : emptyMap().withMutations(function (map) {
              var iter = KeyedCollection$$1(value);
              assertNotInfinite(iter.size);
              iter.forEach(function (v, k) { return map.set(k, v); });
            });
    }

    if ( KeyedCollection$$1 ) Map.__proto__ = KeyedCollection$$1;
    Map.prototype = Object.create( KeyedCollection$$1 && KeyedCollection$$1.prototype );
    Map.prototype.constructor = Map;

    Map.of = function of () {
      var keyValues = [], len = arguments.length;
      while ( len-- ) keyValues[ len ] = arguments[ len ];

      return emptyMap().withMutations(function (map) {
        for (var i = 0; i < keyValues.length; i += 2) {
          if (i + 1 >= keyValues.length) {
            throw new Error('Missing value for key: ' + keyValues[i]);
          }
          map.set(keyValues[i], keyValues[i + 1]);
        }
      });
    };

    Map.prototype.toString = function toString () {
      return this.__toString('Map {', '}');
    };

    // @pragma Access

    Map.prototype.get = function get (k, notSetValue) {
      return this._root
        ? this._root.get(0, undefined, k, notSetValue)
        : notSetValue;
    };

    // @pragma Modification

    Map.prototype.set = function set (k, v) {
      return updateMap(this, k, v);
    };

    Map.prototype.remove = function remove (k) {
      return updateMap(this, k, NOT_SET);
    };

    Map.prototype.deleteAll = function deleteAll (keys) {
      var collection = Collection(keys);

      if (collection.size === 0) {
        return this;
      }

      return this.withMutations(function (map) {
        collection.forEach(function (key) { return map.remove(key); });
      });
    };

    Map.prototype.clear = function clear () {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._root = null;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyMap();
    };

    // @pragma Composition

    Map.prototype.sort = function sort (comparator) {
      // Late binding
      return OrderedMap(sortFactory(this, comparator));
    };

    Map.prototype.sortBy = function sortBy (mapper, comparator) {
      // Late binding
      return OrderedMap(sortFactory(this, comparator, mapper));
    };

    Map.prototype.map = function map (mapper, context) {
      return this.withMutations(function (map) {
        map.forEach(function (value, key) {
          map.set(key, mapper.call(context, value, key, map));
        });
      });
    };

    // @pragma Mutability

    Map.prototype.__iterator = function __iterator (type, reverse) {
      return new MapIterator(this, type, reverse);
    };

    Map.prototype.__iterate = function __iterate (fn, reverse) {
      var this$1 = this;

      var iterations = 0;
      this._root &&
        this._root.iterate(function (entry) {
          iterations++;
          return fn(entry[1], entry[0], this$1);
        }, reverse);
      return iterations;
    };

    Map.prototype.__ensureOwner = function __ensureOwner (ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        if (this.size === 0) {
          return emptyMap();
        }
        this.__ownerID = ownerID;
        this.__altered = false;
        return this;
      }
      return makeMap(this.size, this._root, ownerID, this.__hash);
    };

    return Map;
  }(KeyedCollection));

  Map.isMap = isMap;

  var MapPrototype = Map.prototype;
  MapPrototype[IS_MAP_SYMBOL] = true;
  MapPrototype[DELETE] = MapPrototype.remove;
  MapPrototype.removeAll = MapPrototype.deleteAll;
  MapPrototype.setIn = setIn$1;
  MapPrototype.removeIn = MapPrototype.deleteIn = deleteIn;
  MapPrototype.update = update$1;
  MapPrototype.updateIn = updateIn$1;
  MapPrototype.merge = MapPrototype.concat = merge;
  MapPrototype.mergeWith = mergeWith;
  MapPrototype.mergeDeep = mergeDeep$1;
  MapPrototype.mergeDeepWith = mergeDeepWith$1;
  MapPrototype.mergeIn = mergeIn;
  MapPrototype.mergeDeepIn = mergeDeepIn;
  MapPrototype.withMutations = withMutations;
  MapPrototype.wasAltered = wasAltered;
  MapPrototype.asImmutable = asImmutable;
  MapPrototype['@@transducer/init'] = MapPrototype.asMutable = asMutable;
  MapPrototype['@@transducer/step'] = function(result, arr) {
    return result.set(arr[0], arr[1]);
  };
  MapPrototype['@@transducer/result'] = function(obj) {
    return obj.asImmutable();
  };

  // #pragma Trie Nodes

  var ArrayMapNode = function ArrayMapNode(ownerID, entries) {
    this.ownerID = ownerID;
    this.entries = entries;
  };

  ArrayMapNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
    var entries = this.entries;
    for (var ii = 0, len = entries.length; ii < len; ii++) {
      if (is(key, entries[ii][0])) {
        return entries[ii][1];
      }
    }
    return notSetValue;
  };

  ArrayMapNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
    var removed = value === NOT_SET;

    var entries = this.entries;
    var idx = 0;
    var len = entries.length;
    for (; idx < len; idx++) {
      if (is(key, entries[idx][0])) {
        break;
      }
    }
    var exists = idx < len;

    if (exists ? entries[idx][1] === value : removed) {
      return this;
    }

    SetRef(didAlter);
    (removed || !exists) && SetRef(didChangeSize);

    if (removed && entries.length === 1) {
      return; // undefined
    }

    if (!exists && !removed && entries.length >= MAX_ARRAY_MAP_SIZE) {
      return createNodes(ownerID, entries, key, value);
    }

    var isEditable = ownerID && ownerID === this.ownerID;
    var newEntries = isEditable ? entries : arrCopy(entries);

    if (exists) {
      if (removed) {
        idx === len - 1
          ? newEntries.pop()
          : (newEntries[idx] = newEntries.pop());
      } else {
        newEntries[idx] = [key, value];
      }
    } else {
      newEntries.push([key, value]);
    }

    if (isEditable) {
      this.entries = newEntries;
      return this;
    }

    return new ArrayMapNode(ownerID, newEntries);
  };

  var BitmapIndexedNode = function BitmapIndexedNode(ownerID, bitmap, nodes) {
    this.ownerID = ownerID;
    this.bitmap = bitmap;
    this.nodes = nodes;
  };

  BitmapIndexedNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
    if (keyHash === undefined) {
      keyHash = hash(key);
    }
    var bit = 1 << ((shift === 0 ? keyHash : keyHash >>> shift) & MASK);
    var bitmap = this.bitmap;
    return (bitmap & bit) === 0
      ? notSetValue
      : this.nodes[popCount(bitmap & (bit - 1))].get(
          shift + SHIFT,
          keyHash,
          key,
          notSetValue
        );
  };

  BitmapIndexedNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
    if (keyHash === undefined) {
      keyHash = hash(key);
    }
    var keyHashFrag = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
    var bit = 1 << keyHashFrag;
    var bitmap = this.bitmap;
    var exists = (bitmap & bit) !== 0;

    if (!exists && value === NOT_SET) {
      return this;
    }

    var idx = popCount(bitmap & (bit - 1));
    var nodes = this.nodes;
    var node = exists ? nodes[idx] : undefined;
    var newNode = updateNode(
      node,
      ownerID,
      shift + SHIFT,
      keyHash,
      key,
      value,
      didChangeSize,
      didAlter
    );

    if (newNode === node) {
      return this;
    }

    if (!exists && newNode && nodes.length >= MAX_BITMAP_INDEXED_SIZE) {
      return expandNodes(ownerID, nodes, bitmap, keyHashFrag, newNode);
    }

    if (
      exists &&
      !newNode &&
      nodes.length === 2 &&
      isLeafNode(nodes[idx ^ 1])
    ) {
      return nodes[idx ^ 1];
    }

    if (exists && newNode && nodes.length === 1 && isLeafNode(newNode)) {
      return newNode;
    }

    var isEditable = ownerID && ownerID === this.ownerID;
    var newBitmap = exists ? (newNode ? bitmap : bitmap ^ bit) : bitmap | bit;
    var newNodes = exists
      ? newNode
        ? setAt(nodes, idx, newNode, isEditable)
        : spliceOut(nodes, idx, isEditable)
      : spliceIn(nodes, idx, newNode, isEditable);

    if (isEditable) {
      this.bitmap = newBitmap;
      this.nodes = newNodes;
      return this;
    }

    return new BitmapIndexedNode(ownerID, newBitmap, newNodes);
  };

  var HashArrayMapNode = function HashArrayMapNode(ownerID, count, nodes) {
    this.ownerID = ownerID;
    this.count = count;
    this.nodes = nodes;
  };

  HashArrayMapNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
    if (keyHash === undefined) {
      keyHash = hash(key);
    }
    var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
    var node = this.nodes[idx];
    return node
      ? node.get(shift + SHIFT, keyHash, key, notSetValue)
      : notSetValue;
  };

  HashArrayMapNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
    if (keyHash === undefined) {
      keyHash = hash(key);
    }
    var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
    var removed = value === NOT_SET;
    var nodes = this.nodes;
    var node = nodes[idx];

    if (removed && !node) {
      return this;
    }

    var newNode = updateNode(
      node,
      ownerID,
      shift + SHIFT,
      keyHash,
      key,
      value,
      didChangeSize,
      didAlter
    );
    if (newNode === node) {
      return this;
    }

    var newCount = this.count;
    if (!node) {
      newCount++;
    } else if (!newNode) {
      newCount--;
      if (newCount < MIN_HASH_ARRAY_MAP_SIZE) {
        return packNodes(ownerID, nodes, newCount, idx);
      }
    }

    var isEditable = ownerID && ownerID === this.ownerID;
    var newNodes = setAt(nodes, idx, newNode, isEditable);

    if (isEditable) {
      this.count = newCount;
      this.nodes = newNodes;
      return this;
    }

    return new HashArrayMapNode(ownerID, newCount, newNodes);
  };

  var HashCollisionNode = function HashCollisionNode(ownerID, keyHash, entries) {
    this.ownerID = ownerID;
    this.keyHash = keyHash;
    this.entries = entries;
  };

  HashCollisionNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
    var entries = this.entries;
    for (var ii = 0, len = entries.length; ii < len; ii++) {
      if (is(key, entries[ii][0])) {
        return entries[ii][1];
      }
    }
    return notSetValue;
  };

  HashCollisionNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
    if (keyHash === undefined) {
      keyHash = hash(key);
    }

    var removed = value === NOT_SET;

    if (keyHash !== this.keyHash) {
      if (removed) {
        return this;
      }
      SetRef(didAlter);
      SetRef(didChangeSize);
      return mergeIntoNode(this, ownerID, shift, keyHash, [key, value]);
    }

    var entries = this.entries;
    var idx = 0;
    var len = entries.length;
    for (; idx < len; idx++) {
      if (is(key, entries[idx][0])) {
        break;
      }
    }
    var exists = idx < len;

    if (exists ? entries[idx][1] === value : removed) {
      return this;
    }

    SetRef(didAlter);
    (removed || !exists) && SetRef(didChangeSize);

    if (removed && len === 2) {
      return new ValueNode(ownerID, this.keyHash, entries[idx ^ 1]);
    }

    var isEditable = ownerID && ownerID === this.ownerID;
    var newEntries = isEditable ? entries : arrCopy(entries);

    if (exists) {
      if (removed) {
        idx === len - 1
          ? newEntries.pop()
          : (newEntries[idx] = newEntries.pop());
      } else {
        newEntries[idx] = [key, value];
      }
    } else {
      newEntries.push([key, value]);
    }

    if (isEditable) {
      this.entries = newEntries;
      return this;
    }

    return new HashCollisionNode(ownerID, this.keyHash, newEntries);
  };

  var ValueNode = function ValueNode(ownerID, keyHash, entry) {
    this.ownerID = ownerID;
    this.keyHash = keyHash;
    this.entry = entry;
  };

  ValueNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
    return is(key, this.entry[0]) ? this.entry[1] : notSetValue;
  };

  ValueNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
    var removed = value === NOT_SET;
    var keyMatch = is(key, this.entry[0]);
    if (keyMatch ? value === this.entry[1] : removed) {
      return this;
    }

    SetRef(didAlter);

    if (removed) {
      SetRef(didChangeSize);
      return; // undefined
    }

    if (keyMatch) {
      if (ownerID && ownerID === this.ownerID) {
        this.entry[1] = value;
        return this;
      }
      return new ValueNode(ownerID, this.keyHash, [key, value]);
    }

    SetRef(didChangeSize);
    return mergeIntoNode(this, ownerID, shift, hash(key), [key, value]);
  };

  // #pragma Iterators

  ArrayMapNode.prototype.iterate = HashCollisionNode.prototype.iterate = function(
    fn,
    reverse
  ) {
    var entries = this.entries;
    for (var ii = 0, maxIndex = entries.length - 1; ii <= maxIndex; ii++) {
      if (fn(entries[reverse ? maxIndex - ii : ii]) === false) {
        return false;
      }
    }
  };

  BitmapIndexedNode.prototype.iterate = HashArrayMapNode.prototype.iterate = function(
    fn,
    reverse
  ) {
    var nodes = this.nodes;
    for (var ii = 0, maxIndex = nodes.length - 1; ii <= maxIndex; ii++) {
      var node = nodes[reverse ? maxIndex - ii : ii];
      if (node && node.iterate(fn, reverse) === false) {
        return false;
      }
    }
  };

  // eslint-disable-next-line no-unused-vars
  ValueNode.prototype.iterate = function(fn, reverse) {
    return fn(this.entry);
  };

  var MapIterator = /*@__PURE__*/(function (Iterator$$1) {
    function MapIterator(map, type, reverse) {
      this._type = type;
      this._reverse = reverse;
      this._stack = map._root && mapIteratorFrame(map._root);
    }

    if ( Iterator$$1 ) MapIterator.__proto__ = Iterator$$1;
    MapIterator.prototype = Object.create( Iterator$$1 && Iterator$$1.prototype );
    MapIterator.prototype.constructor = MapIterator;

    MapIterator.prototype.next = function next () {
      var type = this._type;
      var stack = this._stack;
      while (stack) {
        var node = stack.node;
        var index = stack.index++;
        var maxIndex = (void 0);
        if (node.entry) {
          if (index === 0) {
            return mapIteratorValue(type, node.entry);
          }
        } else if (node.entries) {
          maxIndex = node.entries.length - 1;
          if (index <= maxIndex) {
            return mapIteratorValue(
              type,
              node.entries[this._reverse ? maxIndex - index : index]
            );
          }
        } else {
          maxIndex = node.nodes.length - 1;
          if (index <= maxIndex) {
            var subNode = node.nodes[this._reverse ? maxIndex - index : index];
            if (subNode) {
              if (subNode.entry) {
                return mapIteratorValue(type, subNode.entry);
              }
              stack = this._stack = mapIteratorFrame(subNode, stack);
            }
            continue;
          }
        }
        stack = this._stack = this._stack.__prev;
      }
      return iteratorDone();
    };

    return MapIterator;
  }(Iterator));

  function mapIteratorValue(type, entry) {
    return iteratorValue(type, entry[0], entry[1]);
  }

  function mapIteratorFrame(node, prev) {
    return {
      node: node,
      index: 0,
      __prev: prev,
    };
  }

  function makeMap(size, root, ownerID, hash$$1) {
    var map = Object.create(MapPrototype);
    map.size = size;
    map._root = root;
    map.__ownerID = ownerID;
    map.__hash = hash$$1;
    map.__altered = false;
    return map;
  }

  var EMPTY_MAP;
  function emptyMap() {
    return EMPTY_MAP || (EMPTY_MAP = makeMap(0));
  }

  function updateMap(map, k, v) {
    var newRoot;
    var newSize;
    if (!map._root) {
      if (v === NOT_SET) {
        return map;
      }
      newSize = 1;
      newRoot = new ArrayMapNode(map.__ownerID, [[k, v]]);
    } else {
      var didChangeSize = MakeRef();
      var didAlter = MakeRef();
      newRoot = updateNode(
        map._root,
        map.__ownerID,
        0,
        undefined,
        k,
        v,
        didChangeSize,
        didAlter
      );
      if (!didAlter.value) {
        return map;
      }
      newSize = map.size + (didChangeSize.value ? (v === NOT_SET ? -1 : 1) : 0);
    }
    if (map.__ownerID) {
      map.size = newSize;
      map._root = newRoot;
      map.__hash = undefined;
      map.__altered = true;
      return map;
    }
    return newRoot ? makeMap(newSize, newRoot) : emptyMap();
  }

  function updateNode(
    node,
    ownerID,
    shift,
    keyHash,
    key,
    value,
    didChangeSize,
    didAlter
  ) {
    if (!node) {
      if (value === NOT_SET) {
        return node;
      }
      SetRef(didAlter);
      SetRef(didChangeSize);
      return new ValueNode(ownerID, keyHash, [key, value]);
    }
    return node.update(
      ownerID,
      shift,
      keyHash,
      key,
      value,
      didChangeSize,
      didAlter
    );
  }

  function isLeafNode(node) {
    return (
      node.constructor === ValueNode || node.constructor === HashCollisionNode
    );
  }

  function mergeIntoNode(node, ownerID, shift, keyHash, entry) {
    if (node.keyHash === keyHash) {
      return new HashCollisionNode(ownerID, keyHash, [node.entry, entry]);
    }

    var idx1 = (shift === 0 ? node.keyHash : node.keyHash >>> shift) & MASK;
    var idx2 = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;

    var newNode;
    var nodes =
      idx1 === idx2
        ? [mergeIntoNode(node, ownerID, shift + SHIFT, keyHash, entry)]
        : ((newNode = new ValueNode(ownerID, keyHash, entry)),
          idx1 < idx2 ? [node, newNode] : [newNode, node]);

    return new BitmapIndexedNode(ownerID, (1 << idx1) | (1 << idx2), nodes);
  }

  function createNodes(ownerID, entries, key, value) {
    if (!ownerID) {
      ownerID = new OwnerID();
    }
    var node = new ValueNode(ownerID, hash(key), [key, value]);
    for (var ii = 0; ii < entries.length; ii++) {
      var entry = entries[ii];
      node = node.update(ownerID, 0, undefined, entry[0], entry[1]);
    }
    return node;
  }

  function packNodes(ownerID, nodes, count, excluding) {
    var bitmap = 0;
    var packedII = 0;
    var packedNodes = new Array(count);
    for (var ii = 0, bit = 1, len = nodes.length; ii < len; ii++, bit <<= 1) {
      var node = nodes[ii];
      if (node !== undefined && ii !== excluding) {
        bitmap |= bit;
        packedNodes[packedII++] = node;
      }
    }
    return new BitmapIndexedNode(ownerID, bitmap, packedNodes);
  }

  function expandNodes(ownerID, nodes, bitmap, including, node) {
    var count = 0;
    var expandedNodes = new Array(SIZE);
    for (var ii = 0; bitmap !== 0; ii++, bitmap >>>= 1) {
      expandedNodes[ii] = bitmap & 1 ? nodes[count++] : undefined;
    }
    expandedNodes[including] = node;
    return new HashArrayMapNode(ownerID, count + 1, expandedNodes);
  }

  function popCount(x) {
    x -= (x >> 1) & 0x55555555;
    x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
    x = (x + (x >> 4)) & 0x0f0f0f0f;
    x += x >> 8;
    x += x >> 16;
    return x & 0x7f;
  }

  function setAt(array, idx, val, canEdit) {
    var newArray = canEdit ? array : arrCopy(array);
    newArray[idx] = val;
    return newArray;
  }

  function spliceIn(array, idx, val, canEdit) {
    var newLen = array.length + 1;
    if (canEdit && idx + 1 === newLen) {
      array[idx] = val;
      return array;
    }
    var newArray = new Array(newLen);
    var after = 0;
    for (var ii = 0; ii < newLen; ii++) {
      if (ii === idx) {
        newArray[ii] = val;
        after = -1;
      } else {
        newArray[ii] = array[ii + after];
      }
    }
    return newArray;
  }

  function spliceOut(array, idx, canEdit) {
    var newLen = array.length - 1;
    if (canEdit && idx === newLen) {
      array.pop();
      return array;
    }
    var newArray = new Array(newLen);
    var after = 0;
    for (var ii = 0; ii < newLen; ii++) {
      if (ii === idx) {
        after = 1;
      }
      newArray[ii] = array[ii + after];
    }
    return newArray;
  }

  var MAX_ARRAY_MAP_SIZE = SIZE / 4;
  var MAX_BITMAP_INDEXED_SIZE = SIZE / 2;
  var MIN_HASH_ARRAY_MAP_SIZE = SIZE / 4;

  var IS_LIST_SYMBOL = '@@__IMMUTABLE_LIST__@@';

  function isList(maybeList) {
    return Boolean(maybeList && maybeList[IS_LIST_SYMBOL]);
  }

  var List = /*@__PURE__*/(function (IndexedCollection$$1) {
    function List(value) {
      var empty = emptyList();
      if (value === null || value === undefined) {
        return empty;
      }
      if (isList(value)) {
        return value;
      }
      var iter = IndexedCollection$$1(value);
      var size = iter.size;
      if (size === 0) {
        return empty;
      }
      assertNotInfinite(size);
      if (size > 0 && size < SIZE) {
        return makeList(0, size, SHIFT, null, new VNode(iter.toArray()));
      }
      return empty.withMutations(function (list) {
        list.setSize(size);
        iter.forEach(function (v, i) { return list.set(i, v); });
      });
    }

    if ( IndexedCollection$$1 ) List.__proto__ = IndexedCollection$$1;
    List.prototype = Object.create( IndexedCollection$$1 && IndexedCollection$$1.prototype );
    List.prototype.constructor = List;

    List.of = function of (/*...values*/) {
      return this(arguments);
    };

    List.prototype.toString = function toString () {
      return this.__toString('List [', ']');
    };

    // @pragma Access

    List.prototype.get = function get (index, notSetValue) {
      index = wrapIndex(this, index);
      if (index >= 0 && index < this.size) {
        index += this._origin;
        var node = listNodeFor(this, index);
        return node && node.array[index & MASK];
      }
      return notSetValue;
    };

    // @pragma Modification

    List.prototype.set = function set (index, value) {
      return updateList(this, index, value);
    };

    List.prototype.remove = function remove (index) {
      return !this.has(index)
        ? this
        : index === 0
          ? this.shift()
          : index === this.size - 1
            ? this.pop()
            : this.splice(index, 1);
    };

    List.prototype.insert = function insert (index, value) {
      return this.splice(index, 0, value);
    };

    List.prototype.clear = function clear () {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = this._origin = this._capacity = 0;
        this._level = SHIFT;
        this._root = this._tail = null;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyList();
    };

    List.prototype.push = function push (/*...values*/) {
      var values = arguments;
      var oldSize = this.size;
      return this.withMutations(function (list) {
        setListBounds(list, 0, oldSize + values.length);
        for (var ii = 0; ii < values.length; ii++) {
          list.set(oldSize + ii, values[ii]);
        }
      });
    };

    List.prototype.pop = function pop () {
      return setListBounds(this, 0, -1);
    };

    List.prototype.unshift = function unshift (/*...values*/) {
      var values = arguments;
      return this.withMutations(function (list) {
        setListBounds(list, -values.length);
        for (var ii = 0; ii < values.length; ii++) {
          list.set(ii, values[ii]);
        }
      });
    };

    List.prototype.shift = function shift () {
      return setListBounds(this, 1);
    };

    // @pragma Composition

    List.prototype.concat = function concat (/*...collections*/) {
      var arguments$1 = arguments;

      var seqs = [];
      for (var i = 0; i < arguments.length; i++) {
        var argument = arguments$1[i];
        var seq = IndexedCollection$$1(
          typeof argument !== 'string' && hasIterator(argument)
            ? argument
            : [argument]
        );
        if (seq.size !== 0) {
          seqs.push(seq);
        }
      }
      if (seqs.length === 0) {
        return this;
      }
      if (this.size === 0 && !this.__ownerID && seqs.length === 1) {
        return this.constructor(seqs[0]);
      }
      return this.withMutations(function (list) {
        seqs.forEach(function (seq) { return seq.forEach(function (value) { return list.push(value); }); });
      });
    };

    List.prototype.setSize = function setSize (size) {
      return setListBounds(this, 0, size);
    };

    List.prototype.map = function map (mapper, context) {
      var this$1 = this;

      return this.withMutations(function (list) {
        for (var i = 0; i < this$1.size; i++) {
          list.set(i, mapper.call(context, list.get(i), i, list));
        }
      });
    };

    // @pragma Iteration

    List.prototype.slice = function slice (begin, end) {
      var size = this.size;
      if (wholeSlice(begin, end, size)) {
        return this;
      }
      return setListBounds(
        this,
        resolveBegin(begin, size),
        resolveEnd(end, size)
      );
    };

    List.prototype.__iterator = function __iterator (type, reverse) {
      var index = reverse ? this.size : 0;
      var values = iterateList(this, reverse);
      return new Iterator(function () {
        var value = values();
        return value === DONE
          ? iteratorDone()
          : iteratorValue(type, reverse ? --index : index++, value);
      });
    };

    List.prototype.__iterate = function __iterate (fn, reverse) {
      var index = reverse ? this.size : 0;
      var values = iterateList(this, reverse);
      var value;
      while ((value = values()) !== DONE) {
        if (fn(value, reverse ? --index : index++, this) === false) {
          break;
        }
      }
      return index;
    };

    List.prototype.__ensureOwner = function __ensureOwner (ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        if (this.size === 0) {
          return emptyList();
        }
        this.__ownerID = ownerID;
        this.__altered = false;
        return this;
      }
      return makeList(
        this._origin,
        this._capacity,
        this._level,
        this._root,
        this._tail,
        ownerID,
        this.__hash
      );
    };

    return List;
  }(IndexedCollection));

  List.isList = isList;

  var ListPrototype = List.prototype;
  ListPrototype[IS_LIST_SYMBOL] = true;
  ListPrototype[DELETE] = ListPrototype.remove;
  ListPrototype.merge = ListPrototype.concat;
  ListPrototype.setIn = setIn$1;
  ListPrototype.deleteIn = ListPrototype.removeIn = deleteIn;
  ListPrototype.update = update$1;
  ListPrototype.updateIn = updateIn$1;
  ListPrototype.mergeIn = mergeIn;
  ListPrototype.mergeDeepIn = mergeDeepIn;
  ListPrototype.withMutations = withMutations;
  ListPrototype.wasAltered = wasAltered;
  ListPrototype.asImmutable = asImmutable;
  ListPrototype['@@transducer/init'] = ListPrototype.asMutable = asMutable;
  ListPrototype['@@transducer/step'] = function(result, arr) {
    return result.push(arr);
  };
  ListPrototype['@@transducer/result'] = function(obj) {
    return obj.asImmutable();
  };

  var VNode = function VNode(array, ownerID) {
    this.array = array;
    this.ownerID = ownerID;
  };

  // TODO: seems like these methods are very similar

  VNode.prototype.removeBefore = function removeBefore (ownerID, level, index) {
    if (index === level ? 1 << level : this.array.length === 0) {
      return this;
    }
    var originIndex = (index >>> level) & MASK;
    if (originIndex >= this.array.length) {
      return new VNode([], ownerID);
    }
    var removingFirst = originIndex === 0;
    var newChild;
    if (level > 0) {
      var oldChild = this.array[originIndex];
      newChild =
        oldChild && oldChild.removeBefore(ownerID, level - SHIFT, index);
      if (newChild === oldChild && removingFirst) {
        return this;
      }
    }
    if (removingFirst && !newChild) {
      return this;
    }
    var editable = editableVNode(this, ownerID);
    if (!removingFirst) {
      for (var ii = 0; ii < originIndex; ii++) {
        editable.array[ii] = undefined;
      }
    }
    if (newChild) {
      editable.array[originIndex] = newChild;
    }
    return editable;
  };

  VNode.prototype.removeAfter = function removeAfter (ownerID, level, index) {
    if (index === (level ? 1 << level : 0) || this.array.length === 0) {
      return this;
    }
    var sizeIndex = ((index - 1) >>> level) & MASK;
    if (sizeIndex >= this.array.length) {
      return this;
    }

    var newChild;
    if (level > 0) {
      var oldChild = this.array[sizeIndex];
      newChild =
        oldChild && oldChild.removeAfter(ownerID, level - SHIFT, index);
      if (newChild === oldChild && sizeIndex === this.array.length - 1) {
        return this;
      }
    }

    var editable = editableVNode(this, ownerID);
    editable.array.splice(sizeIndex + 1);
    if (newChild) {
      editable.array[sizeIndex] = newChild;
    }
    return editable;
  };

  var DONE = {};

  function iterateList(list, reverse) {
    var left = list._origin;
    var right = list._capacity;
    var tailPos = getTailOffset(right);
    var tail = list._tail;

    return iterateNodeOrLeaf(list._root, list._level, 0);

    function iterateNodeOrLeaf(node, level, offset) {
      return level === 0
        ? iterateLeaf(node, offset)
        : iterateNode(node, level, offset);
    }

    function iterateLeaf(node, offset) {
      var array = offset === tailPos ? tail && tail.array : node && node.array;
      var from = offset > left ? 0 : left - offset;
      var to = right - offset;
      if (to > SIZE) {
        to = SIZE;
      }
      return function () {
        if (from === to) {
          return DONE;
        }
        var idx = reverse ? --to : from++;
        return array && array[idx];
      };
    }

    function iterateNode(node, level, offset) {
      var values;
      var array = node && node.array;
      var from = offset > left ? 0 : (left - offset) >> level;
      var to = ((right - offset) >> level) + 1;
      if (to > SIZE) {
        to = SIZE;
      }
      return function () {
        while (true) {
          if (values) {
            var value = values();
            if (value !== DONE) {
              return value;
            }
            values = null;
          }
          if (from === to) {
            return DONE;
          }
          var idx = reverse ? --to : from++;
          values = iterateNodeOrLeaf(
            array && array[idx],
            level - SHIFT,
            offset + (idx << level)
          );
        }
      };
    }
  }

  function makeList(origin, capacity, level, root, tail, ownerID, hash) {
    var list = Object.create(ListPrototype);
    list.size = capacity - origin;
    list._origin = origin;
    list._capacity = capacity;
    list._level = level;
    list._root = root;
    list._tail = tail;
    list.__ownerID = ownerID;
    list.__hash = hash;
    list.__altered = false;
    return list;
  }

  var EMPTY_LIST;
  function emptyList() {
    return EMPTY_LIST || (EMPTY_LIST = makeList(0, 0, SHIFT));
  }

  function updateList(list, index, value) {
    index = wrapIndex(list, index);

    if (index !== index) {
      return list;
    }

    if (index >= list.size || index < 0) {
      return list.withMutations(function (list) {
        index < 0
          ? setListBounds(list, index).set(0, value)
          : setListBounds(list, 0, index + 1).set(index, value);
      });
    }

    index += list._origin;

    var newTail = list._tail;
    var newRoot = list._root;
    var didAlter = MakeRef();
    if (index >= getTailOffset(list._capacity)) {
      newTail = updateVNode(newTail, list.__ownerID, 0, index, value, didAlter);
    } else {
      newRoot = updateVNode(
        newRoot,
        list.__ownerID,
        list._level,
        index,
        value,
        didAlter
      );
    }

    if (!didAlter.value) {
      return list;
    }

    if (list.__ownerID) {
      list._root = newRoot;
      list._tail = newTail;
      list.__hash = undefined;
      list.__altered = true;
      return list;
    }
    return makeList(list._origin, list._capacity, list._level, newRoot, newTail);
  }

  function updateVNode(node, ownerID, level, index, value, didAlter) {
    var idx = (index >>> level) & MASK;
    var nodeHas = node && idx < node.array.length;
    if (!nodeHas && value === undefined) {
      return node;
    }

    var newNode;

    if (level > 0) {
      var lowerNode = node && node.array[idx];
      var newLowerNode = updateVNode(
        lowerNode,
        ownerID,
        level - SHIFT,
        index,
        value,
        didAlter
      );
      if (newLowerNode === lowerNode) {
        return node;
      }
      newNode = editableVNode(node, ownerID);
      newNode.array[idx] = newLowerNode;
      return newNode;
    }

    if (nodeHas && node.array[idx] === value) {
      return node;
    }

    if (didAlter) {
      SetRef(didAlter);
    }

    newNode = editableVNode(node, ownerID);
    if (value === undefined && idx === newNode.array.length - 1) {
      newNode.array.pop();
    } else {
      newNode.array[idx] = value;
    }
    return newNode;
  }

  function editableVNode(node, ownerID) {
    if (ownerID && node && ownerID === node.ownerID) {
      return node;
    }
    return new VNode(node ? node.array.slice() : [], ownerID);
  }

  function listNodeFor(list, rawIndex) {
    if (rawIndex >= getTailOffset(list._capacity)) {
      return list._tail;
    }
    if (rawIndex < 1 << (list._level + SHIFT)) {
      var node = list._root;
      var level = list._level;
      while (node && level > 0) {
        node = node.array[(rawIndex >>> level) & MASK];
        level -= SHIFT;
      }
      return node;
    }
  }

  function setListBounds(list, begin, end) {
    // Sanitize begin & end using this shorthand for ToInt32(argument)
    // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
    if (begin !== undefined) {
      begin |= 0;
    }
    if (end !== undefined) {
      end |= 0;
    }
    var owner = list.__ownerID || new OwnerID();
    var oldOrigin = list._origin;
    var oldCapacity = list._capacity;
    var newOrigin = oldOrigin + begin;
    var newCapacity =
      end === undefined
        ? oldCapacity
        : end < 0
          ? oldCapacity + end
          : oldOrigin + end;
    if (newOrigin === oldOrigin && newCapacity === oldCapacity) {
      return list;
    }

    // If it's going to end after it starts, it's empty.
    if (newOrigin >= newCapacity) {
      return list.clear();
    }

    var newLevel = list._level;
    var newRoot = list._root;

    // New origin might need creating a higher root.
    var offsetShift = 0;
    while (newOrigin + offsetShift < 0) {
      newRoot = new VNode(
        newRoot && newRoot.array.length ? [undefined, newRoot] : [],
        owner
      );
      newLevel += SHIFT;
      offsetShift += 1 << newLevel;
    }
    if (offsetShift) {
      newOrigin += offsetShift;
      oldOrigin += offsetShift;
      newCapacity += offsetShift;
      oldCapacity += offsetShift;
    }

    var oldTailOffset = getTailOffset(oldCapacity);
    var newTailOffset = getTailOffset(newCapacity);

    // New size might need creating a higher root.
    while (newTailOffset >= 1 << (newLevel + SHIFT)) {
      newRoot = new VNode(
        newRoot && newRoot.array.length ? [newRoot] : [],
        owner
      );
      newLevel += SHIFT;
    }

    // Locate or create the new tail.
    var oldTail = list._tail;
    var newTail =
      newTailOffset < oldTailOffset
        ? listNodeFor(list, newCapacity - 1)
        : newTailOffset > oldTailOffset
          ? new VNode([], owner)
          : oldTail;

    // Merge Tail into tree.
    if (
      oldTail &&
      newTailOffset > oldTailOffset &&
      newOrigin < oldCapacity &&
      oldTail.array.length
    ) {
      newRoot = editableVNode(newRoot, owner);
      var node = newRoot;
      for (var level = newLevel; level > SHIFT; level -= SHIFT) {
        var idx = (oldTailOffset >>> level) & MASK;
        node = node.array[idx] = editableVNode(node.array[idx], owner);
      }
      node.array[(oldTailOffset >>> SHIFT) & MASK] = oldTail;
    }

    // If the size has been reduced, there's a chance the tail needs to be trimmed.
    if (newCapacity < oldCapacity) {
      newTail = newTail && newTail.removeAfter(owner, 0, newCapacity);
    }

    // If the new origin is within the tail, then we do not need a root.
    if (newOrigin >= newTailOffset) {
      newOrigin -= newTailOffset;
      newCapacity -= newTailOffset;
      newLevel = SHIFT;
      newRoot = null;
      newTail = newTail && newTail.removeBefore(owner, 0, newOrigin);

      // Otherwise, if the root has been trimmed, garbage collect.
    } else if (newOrigin > oldOrigin || newTailOffset < oldTailOffset) {
      offsetShift = 0;

      // Identify the new top root node of the subtree of the old root.
      while (newRoot) {
        var beginIndex = (newOrigin >>> newLevel) & MASK;
        if ((beginIndex !== newTailOffset >>> newLevel) & MASK) {
          break;
        }
        if (beginIndex) {
          offsetShift += (1 << newLevel) * beginIndex;
        }
        newLevel -= SHIFT;
        newRoot = newRoot.array[beginIndex];
      }

      // Trim the new sides of the new root.
      if (newRoot && newOrigin > oldOrigin) {
        newRoot = newRoot.removeBefore(owner, newLevel, newOrigin - offsetShift);
      }
      if (newRoot && newTailOffset < oldTailOffset) {
        newRoot = newRoot.removeAfter(
          owner,
          newLevel,
          newTailOffset - offsetShift
        );
      }
      if (offsetShift) {
        newOrigin -= offsetShift;
        newCapacity -= offsetShift;
      }
    }

    if (list.__ownerID) {
      list.size = newCapacity - newOrigin;
      list._origin = newOrigin;
      list._capacity = newCapacity;
      list._level = newLevel;
      list._root = newRoot;
      list._tail = newTail;
      list.__hash = undefined;
      list.__altered = true;
      return list;
    }
    return makeList(newOrigin, newCapacity, newLevel, newRoot, newTail);
  }

  function getTailOffset(size) {
    return size < SIZE ? 0 : ((size - 1) >>> SHIFT) << SHIFT;
  }

  var OrderedMap = /*@__PURE__*/(function (Map$$1) {
    function OrderedMap(value) {
      return value === null || value === undefined
        ? emptyOrderedMap()
        : isOrderedMap(value)
          ? value
          : emptyOrderedMap().withMutations(function (map) {
              var iter = KeyedCollection(value);
              assertNotInfinite(iter.size);
              iter.forEach(function (v, k) { return map.set(k, v); });
            });
    }

    if ( Map$$1 ) OrderedMap.__proto__ = Map$$1;
    OrderedMap.prototype = Object.create( Map$$1 && Map$$1.prototype );
    OrderedMap.prototype.constructor = OrderedMap;

    OrderedMap.of = function of (/*...values*/) {
      return this(arguments);
    };

    OrderedMap.prototype.toString = function toString () {
      return this.__toString('OrderedMap {', '}');
    };

    // @pragma Access

    OrderedMap.prototype.get = function get (k, notSetValue) {
      var index = this._map.get(k);
      return index !== undefined ? this._list.get(index)[1] : notSetValue;
    };

    // @pragma Modification

    OrderedMap.prototype.clear = function clear () {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._map.clear();
        this._list.clear();
        return this;
      }
      return emptyOrderedMap();
    };

    OrderedMap.prototype.set = function set (k, v) {
      return updateOrderedMap(this, k, v);
    };

    OrderedMap.prototype.remove = function remove (k) {
      return updateOrderedMap(this, k, NOT_SET);
    };

    OrderedMap.prototype.wasAltered = function wasAltered () {
      return this._map.wasAltered() || this._list.wasAltered();
    };

    OrderedMap.prototype.__iterate = function __iterate (fn, reverse) {
      var this$1 = this;

      return this._list.__iterate(
        function (entry) { return entry && fn(entry[1], entry[0], this$1); },
        reverse
      );
    };

    OrderedMap.prototype.__iterator = function __iterator (type, reverse) {
      return this._list.fromEntrySeq().__iterator(type, reverse);
    };

    OrderedMap.prototype.__ensureOwner = function __ensureOwner (ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      var newMap = this._map.__ensureOwner(ownerID);
      var newList = this._list.__ensureOwner(ownerID);
      if (!ownerID) {
        if (this.size === 0) {
          return emptyOrderedMap();
        }
        this.__ownerID = ownerID;
        this._map = newMap;
        this._list = newList;
        return this;
      }
      return makeOrderedMap(newMap, newList, ownerID, this.__hash);
    };

    return OrderedMap;
  }(Map));

  OrderedMap.isOrderedMap = isOrderedMap;

  OrderedMap.prototype[IS_ORDERED_SYMBOL] = true;
  OrderedMap.prototype[DELETE] = OrderedMap.prototype.remove;

  function makeOrderedMap(map, list, ownerID, hash) {
    var omap = Object.create(OrderedMap.prototype);
    omap.size = map ? map.size : 0;
    omap._map = map;
    omap._list = list;
    omap.__ownerID = ownerID;
    omap.__hash = hash;
    return omap;
  }

  var EMPTY_ORDERED_MAP;
  function emptyOrderedMap() {
    return (
      EMPTY_ORDERED_MAP ||
      (EMPTY_ORDERED_MAP = makeOrderedMap(emptyMap(), emptyList()))
    );
  }

  function updateOrderedMap(omap, k, v) {
    var map = omap._map;
    var list = omap._list;
    var i = map.get(k);
    var has = i !== undefined;
    var newMap;
    var newList;
    if (v === NOT_SET) {
      // removed
      if (!has) {
        return omap;
      }
      if (list.size >= SIZE && list.size >= map.size * 2) {
        newList = list.filter(function (entry, idx) { return entry !== undefined && i !== idx; });
        newMap = newList
          .toKeyedSeq()
          .map(function (entry) { return entry[0]; })
          .flip()
          .toMap();
        if (omap.__ownerID) {
          newMap.__ownerID = newList.__ownerID = omap.__ownerID;
        }
      } else {
        newMap = map.remove(k);
        newList = i === list.size - 1 ? list.pop() : list.set(i, undefined);
      }
    } else if (has) {
      if (v === list.get(i)[1]) {
        return omap;
      }
      newMap = map;
      newList = list.set(i, [k, v]);
    } else {
      newMap = map.set(k, list.size);
      newList = list.set(list.size, [k, v]);
    }
    if (omap.__ownerID) {
      omap.size = newMap.size;
      omap._map = newMap;
      omap._list = newList;
      omap.__hash = undefined;
      return omap;
    }
    return makeOrderedMap(newMap, newList);
  }

  var IS_STACK_SYMBOL = '@@__IMMUTABLE_STACK__@@';

  function isStack(maybeStack) {
    return Boolean(maybeStack && maybeStack[IS_STACK_SYMBOL]);
  }

  var Stack = /*@__PURE__*/(function (IndexedCollection$$1) {
    function Stack(value) {
      return value === null || value === undefined
        ? emptyStack()
        : isStack(value)
          ? value
          : emptyStack().pushAll(value);
    }

    if ( IndexedCollection$$1 ) Stack.__proto__ = IndexedCollection$$1;
    Stack.prototype = Object.create( IndexedCollection$$1 && IndexedCollection$$1.prototype );
    Stack.prototype.constructor = Stack;

    Stack.of = function of (/*...values*/) {
      return this(arguments);
    };

    Stack.prototype.toString = function toString () {
      return this.__toString('Stack [', ']');
    };

    // @pragma Access

    Stack.prototype.get = function get (index, notSetValue) {
      var head = this._head;
      index = wrapIndex(this, index);
      while (head && index--) {
        head = head.next;
      }
      return head ? head.value : notSetValue;
    };

    Stack.prototype.peek = function peek () {
      return this._head && this._head.value;
    };

    // @pragma Modification

    Stack.prototype.push = function push (/*...values*/) {
      var arguments$1 = arguments;

      if (arguments.length === 0) {
        return this;
      }
      var newSize = this.size + arguments.length;
      var head = this._head;
      for (var ii = arguments.length - 1; ii >= 0; ii--) {
        head = {
          value: arguments$1[ii],
          next: head,
        };
      }
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    Stack.prototype.pushAll = function pushAll (iter) {
      iter = IndexedCollection$$1(iter);
      if (iter.size === 0) {
        return this;
      }
      if (this.size === 0 && isStack(iter)) {
        return iter;
      }
      assertNotInfinite(iter.size);
      var newSize = this.size;
      var head = this._head;
      iter.__iterate(function (value) {
        newSize++;
        head = {
          value: value,
          next: head,
        };
      }, /* reverse */ true);
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    Stack.prototype.pop = function pop () {
      return this.slice(1);
    };

    Stack.prototype.clear = function clear () {
      if (this.size === 0) {
        return this;
      }
      if (this.__ownerID) {
        this.size = 0;
        this._head = undefined;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return emptyStack();
    };

    Stack.prototype.slice = function slice (begin, end) {
      if (wholeSlice(begin, end, this.size)) {
        return this;
      }
      var resolvedBegin = resolveBegin(begin, this.size);
      var resolvedEnd = resolveEnd(end, this.size);
      if (resolvedEnd !== this.size) {
        // super.slice(begin, end);
        return IndexedCollection$$1.prototype.slice.call(this, begin, end);
      }
      var newSize = this.size - resolvedBegin;
      var head = this._head;
      while (resolvedBegin--) {
        head = head.next;
      }
      if (this.__ownerID) {
        this.size = newSize;
        this._head = head;
        this.__hash = undefined;
        this.__altered = true;
        return this;
      }
      return makeStack(newSize, head);
    };

    // @pragma Mutability

    Stack.prototype.__ensureOwner = function __ensureOwner (ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      if (!ownerID) {
        if (this.size === 0) {
          return emptyStack();
        }
        this.__ownerID = ownerID;
        this.__altered = false;
        return this;
      }
      return makeStack(this.size, this._head, ownerID, this.__hash);
    };

    // @pragma Iteration

    Stack.prototype.__iterate = function __iterate (fn, reverse) {
      var this$1 = this;

      if (reverse) {
        return new ArraySeq(this.toArray()).__iterate(
          function (v, k) { return fn(v, k, this$1); },
          reverse
        );
      }
      var iterations = 0;
      var node = this._head;
      while (node) {
        if (fn(node.value, iterations++, this) === false) {
          break;
        }
        node = node.next;
      }
      return iterations;
    };

    Stack.prototype.__iterator = function __iterator (type, reverse) {
      if (reverse) {
        return new ArraySeq(this.toArray()).__iterator(type, reverse);
      }
      var iterations = 0;
      var node = this._head;
      return new Iterator(function () {
        if (node) {
          var value = node.value;
          node = node.next;
          return iteratorValue(type, iterations++, value);
        }
        return iteratorDone();
      });
    };

    return Stack;
  }(IndexedCollection));

  Stack.isStack = isStack;

  var StackPrototype = Stack.prototype;
  StackPrototype[IS_STACK_SYMBOL] = true;
  StackPrototype.shift = StackPrototype.pop;
  StackPrototype.unshift = StackPrototype.push;
  StackPrototype.unshiftAll = StackPrototype.pushAll;
  StackPrototype.withMutations = withMutations;
  StackPrototype.wasAltered = wasAltered;
  StackPrototype.asImmutable = asImmutable;
  StackPrototype['@@transducer/init'] = StackPrototype.asMutable = asMutable;
  StackPrototype['@@transducer/step'] = function(result, arr) {
    return result.unshift(arr);
  };
  StackPrototype['@@transducer/result'] = function(obj) {
    return obj.asImmutable();
  };

  function makeStack(size, head, ownerID, hash) {
    var map = Object.create(StackPrototype);
    map.size = size;
    map._head = head;
    map.__ownerID = ownerID;
    map.__hash = hash;
    map.__altered = false;
    return map;
  }

  var EMPTY_STACK;
  function emptyStack() {
    return EMPTY_STACK || (EMPTY_STACK = makeStack(0));
  }

  var IS_SET_SYMBOL = '@@__IMMUTABLE_SET__@@';

  function isSet(maybeSet) {
    return Boolean(maybeSet && maybeSet[IS_SET_SYMBOL]);
  }

  function isOrderedSet(maybeOrderedSet) {
    return isSet(maybeOrderedSet) && isOrdered(maybeOrderedSet);
  }

  function deepEqual(a, b) {
    if (a === b) {
      return true;
    }

    if (
      !isCollection(b) ||
      (a.size !== undefined && b.size !== undefined && a.size !== b.size) ||
      (a.__hash !== undefined &&
        b.__hash !== undefined &&
        a.__hash !== b.__hash) ||
      isKeyed(a) !== isKeyed(b) ||
      isIndexed(a) !== isIndexed(b) ||
      isOrdered(a) !== isOrdered(b)
    ) {
      return false;
    }

    if (a.size === 0 && b.size === 0) {
      return true;
    }

    var notAssociative = !isAssociative(a);

    if (isOrdered(a)) {
      var entries = a.entries();
      return (
        b.every(function (v, k) {
          var entry = entries.next().value;
          return entry && is(entry[1], v) && (notAssociative || is(entry[0], k));
        }) && entries.next().done
      );
    }

    var flipped = false;

    if (a.size === undefined) {
      if (b.size === undefined) {
        if (typeof a.cacheResult === 'function') {
          a.cacheResult();
        }
      } else {
        flipped = true;
        var _ = a;
        a = b;
        b = _;
      }
    }

    var allEqual = true;
    var bSize = b.__iterate(function (v, k) {
      if (
        notAssociative
          ? !a.has(v)
          : flipped
            ? !is(v, a.get(k, NOT_SET))
            : !is(a.get(k, NOT_SET), v)
      ) {
        allEqual = false;
        return false;
      }
    });

    return allEqual && a.size === bSize;
  }

  /**
   * Contributes additional methods to a constructor
   */
  function mixin(ctor, methods) {
    var keyCopier = function (key) {
      ctor.prototype[key] = methods[key];
    };
    Object.keys(methods).forEach(keyCopier);
    Object.getOwnPropertySymbols &&
      Object.getOwnPropertySymbols(methods).forEach(keyCopier);
    return ctor;
  }

  function toJS(value) {
    if (!value || typeof value !== 'object') {
      return value;
    }
    if (!isCollection(value)) {
      if (!isDataStructure(value)) {
        return value;
      }
      value = Seq(value);
    }
    if (isKeyed(value)) {
      var result$1 = {};
      value.__iterate(function (v, k) {
        result$1[k] = toJS(v);
      });
      return result$1;
    }
    var result = [];
    value.__iterate(function (v) {
      result.push(toJS(v));
    });
    return result;
  }

  var Set = /*@__PURE__*/(function (SetCollection$$1) {
    function Set(value) {
      return value === null || value === undefined
        ? emptySet()
        : isSet(value) && !isOrdered(value)
          ? value
          : emptySet().withMutations(function (set) {
              var iter = SetCollection$$1(value);
              assertNotInfinite(iter.size);
              iter.forEach(function (v) { return set.add(v); });
            });
    }

    if ( SetCollection$$1 ) Set.__proto__ = SetCollection$$1;
    Set.prototype = Object.create( SetCollection$$1 && SetCollection$$1.prototype );
    Set.prototype.constructor = Set;

    Set.of = function of (/*...values*/) {
      return this(arguments);
    };

    Set.fromKeys = function fromKeys (value) {
      return this(KeyedCollection(value).keySeq());
    };

    Set.intersect = function intersect (sets) {
      sets = Collection(sets).toArray();
      return sets.length
        ? SetPrototype.intersect.apply(Set(sets.pop()), sets)
        : emptySet();
    };

    Set.union = function union (sets) {
      sets = Collection(sets).toArray();
      return sets.length
        ? SetPrototype.union.apply(Set(sets.pop()), sets)
        : emptySet();
    };

    Set.prototype.toString = function toString () {
      return this.__toString('Set {', '}');
    };

    // @pragma Access

    Set.prototype.has = function has (value) {
      return this._map.has(value);
    };

    // @pragma Modification

    Set.prototype.add = function add (value) {
      return updateSet(this, this._map.set(value, value));
    };

    Set.prototype.remove = function remove (value) {
      return updateSet(this, this._map.remove(value));
    };

    Set.prototype.clear = function clear () {
      return updateSet(this, this._map.clear());
    };

    // @pragma Composition

    Set.prototype.map = function map (mapper, context) {
      var this$1 = this;

      var removes = [];
      var adds = [];
      this.forEach(function (value) {
        var mapped = mapper.call(context, value, value, this$1);
        if (mapped !== value) {
          removes.push(value);
          adds.push(mapped);
        }
      });
      return this.withMutations(function (set) {
        removes.forEach(function (value) { return set.remove(value); });
        adds.forEach(function (value) { return set.add(value); });
      });
    };

    Set.prototype.union = function union () {
      var iters = [], len = arguments.length;
      while ( len-- ) iters[ len ] = arguments[ len ];

      iters = iters.filter(function (x) { return x.size !== 0; });
      if (iters.length === 0) {
        return this;
      }
      if (this.size === 0 && !this.__ownerID && iters.length === 1) {
        return this.constructor(iters[0]);
      }
      return this.withMutations(function (set) {
        for (var ii = 0; ii < iters.length; ii++) {
          SetCollection$$1(iters[ii]).forEach(function (value) { return set.add(value); });
        }
      });
    };

    Set.prototype.intersect = function intersect () {
      var iters = [], len = arguments.length;
      while ( len-- ) iters[ len ] = arguments[ len ];

      if (iters.length === 0) {
        return this;
      }
      iters = iters.map(function (iter) { return SetCollection$$1(iter); });
      var toRemove = [];
      this.forEach(function (value) {
        if (!iters.every(function (iter) { return iter.includes(value); })) {
          toRemove.push(value);
        }
      });
      return this.withMutations(function (set) {
        toRemove.forEach(function (value) {
          set.remove(value);
        });
      });
    };

    Set.prototype.subtract = function subtract () {
      var iters = [], len = arguments.length;
      while ( len-- ) iters[ len ] = arguments[ len ];

      if (iters.length === 0) {
        return this;
      }
      iters = iters.map(function (iter) { return SetCollection$$1(iter); });
      var toRemove = [];
      this.forEach(function (value) {
        if (iters.some(function (iter) { return iter.includes(value); })) {
          toRemove.push(value);
        }
      });
      return this.withMutations(function (set) {
        toRemove.forEach(function (value) {
          set.remove(value);
        });
      });
    };

    Set.prototype.sort = function sort (comparator) {
      // Late binding
      return OrderedSet(sortFactory(this, comparator));
    };

    Set.prototype.sortBy = function sortBy (mapper, comparator) {
      // Late binding
      return OrderedSet(sortFactory(this, comparator, mapper));
    };

    Set.prototype.wasAltered = function wasAltered () {
      return this._map.wasAltered();
    };

    Set.prototype.__iterate = function __iterate (fn, reverse) {
      var this$1 = this;

      return this._map.__iterate(function (k) { return fn(k, k, this$1); }, reverse);
    };

    Set.prototype.__iterator = function __iterator (type, reverse) {
      return this._map.__iterator(type, reverse);
    };

    Set.prototype.__ensureOwner = function __ensureOwner (ownerID) {
      if (ownerID === this.__ownerID) {
        return this;
      }
      var newMap = this._map.__ensureOwner(ownerID);
      if (!ownerID) {
        if (this.size === 0) {
          return this.__empty();
        }
        this.__ownerID = ownerID;
        this._map = newMap;
        return this;
      }
      return this.__make(newMap, ownerID);
    };

    return Set;
  }(SetCollection));

  Set.isSet = isSet;

  var SetPrototype = Set.prototype;
  SetPrototype[IS_SET_SYMBOL] = true;
  SetPrototype[DELETE] = SetPrototype.remove;
  SetPrototype.merge = SetPrototype.concat = SetPrototype.union;
  SetPrototype.withMutations = withMutations;
  SetPrototype.asImmutable = asImmutable;
  SetPrototype['@@transducer/init'] = SetPrototype.asMutable = asMutable;
  SetPrototype['@@transducer/step'] = function(result, arr) {
    return result.add(arr);
  };
  SetPrototype['@@transducer/result'] = function(obj) {
    return obj.asImmutable();
  };

  SetPrototype.__empty = emptySet;
  SetPrototype.__make = makeSet;

  function updateSet(set, newMap) {
    if (set.__ownerID) {
      set.size = newMap.size;
      set._map = newMap;
      return set;
    }
    return newMap === set._map
      ? set
      : newMap.size === 0
        ? set.__empty()
        : set.__make(newMap);
  }

  function makeSet(map, ownerID) {
    var set = Object.create(SetPrototype);
    set.size = map ? map.size : 0;
    set._map = map;
    set.__ownerID = ownerID;
    return set;
  }

  var EMPTY_SET;
  function emptySet() {
    return EMPTY_SET || (EMPTY_SET = makeSet(emptyMap()));
  }

  /**
   * Returns a lazy seq of nums from start (inclusive) to end
   * (exclusive), by step, where start defaults to 0, step to 1, and end to
   * infinity. When start is equal to end, returns empty list.
   */
  var Range = /*@__PURE__*/(function (IndexedSeq$$1) {
    function Range(start, end, step) {
      if (!(this instanceof Range)) {
        return new Range(start, end, step);
      }
      invariant(step !== 0, 'Cannot step a Range by 0');
      start = start || 0;
      if (end === undefined) {
        end = Infinity;
      }
      step = step === undefined ? 1 : Math.abs(step);
      if (end < start) {
        step = -step;
      }
      this._start = start;
      this._end = end;
      this._step = step;
      this.size = Math.max(0, Math.ceil((end - start) / step - 1) + 1);
      if (this.size === 0) {
        if (EMPTY_RANGE) {
          return EMPTY_RANGE;
        }
        EMPTY_RANGE = this;
      }
    }

    if ( IndexedSeq$$1 ) Range.__proto__ = IndexedSeq$$1;
    Range.prototype = Object.create( IndexedSeq$$1 && IndexedSeq$$1.prototype );
    Range.prototype.constructor = Range;

    Range.prototype.toString = function toString () {
      if (this.size === 0) {
        return 'Range []';
      }
      return (
        'Range [ ' +
        this._start +
        '...' +
        this._end +
        (this._step !== 1 ? ' by ' + this._step : '') +
        ' ]'
      );
    };

    Range.prototype.get = function get (index, notSetValue) {
      return this.has(index)
        ? this._start + wrapIndex(this, index) * this._step
        : notSetValue;
    };

    Range.prototype.includes = function includes (searchValue) {
      var possibleIndex = (searchValue - this._start) / this._step;
      return (
        possibleIndex >= 0 &&
        possibleIndex < this.size &&
        possibleIndex === Math.floor(possibleIndex)
      );
    };

    Range.prototype.slice = function slice (begin, end) {
      if (wholeSlice(begin, end, this.size)) {
        return this;
      }
      begin = resolveBegin(begin, this.size);
      end = resolveEnd(end, this.size);
      if (end <= begin) {
        return new Range(0, 0);
      }
      return new Range(
        this.get(begin, this._end),
        this.get(end, this._end),
        this._step
      );
    };

    Range.prototype.indexOf = function indexOf (searchValue) {
      var offsetValue = searchValue - this._start;
      if (offsetValue % this._step === 0) {
        var index = offsetValue / this._step;
        if (index >= 0 && index < this.size) {
          return index;
        }
      }
      return -1;
    };

    Range.prototype.lastIndexOf = function lastIndexOf (searchValue) {
      return this.indexOf(searchValue);
    };

    Range.prototype.__iterate = function __iterate (fn, reverse) {
      var size = this.size;
      var step = this._step;
      var value = reverse ? this._start + (size - 1) * step : this._start;
      var i = 0;
      while (i !== size) {
        if (fn(value, reverse ? size - ++i : i++, this) === false) {
          break;
        }
        value += reverse ? -step : step;
      }
      return i;
    };

    Range.prototype.__iterator = function __iterator (type, reverse) {
      var size = this.size;
      var step = this._step;
      var value = reverse ? this._start + (size - 1) * step : this._start;
      var i = 0;
      return new Iterator(function () {
        if (i === size) {
          return iteratorDone();
        }
        var v = value;
        value += reverse ? -step : step;
        return iteratorValue(type, reverse ? size - ++i : i++, v);
      });
    };

    Range.prototype.equals = function equals (other) {
      return other instanceof Range
        ? this._start === other._start &&
            this._end === other._end &&
            this._step === other._step
        : deepEqual(this, other);
    };

    return Range;
  }(IndexedSeq));

  var EMPTY_RANGE;

  function getIn(collection, searchKeyPath, notSetValue) {
    var keyPath = coerceKeyPath(searchKeyPath);
    var i = 0;
    while (i !== keyPath.length) {
      collection = get(collection, keyPath[i++], NOT_SET);
      if (collection === NOT_SET) {
        return notSetValue;
      }
    }
    return collection;
  }

  function getIn$1(searchKeyPath, notSetValue) {
    return getIn(this, searchKeyPath, notSetValue);
  }

  function hasIn(collection, keyPath) {
    return getIn(collection, keyPath, NOT_SET) !== NOT_SET;
  }

  function hasIn$1(searchKeyPath) {
    return hasIn(this, searchKeyPath);
  }

  function toObject() {
    assertNotInfinite(this.size);
    var object = {};
    this.__iterate(function (v, k) {
      object[k] = v;
    });
    return object;
  }

  // Note: all of these methods are deprecated.
  Collection.isIterable = isCollection;
  Collection.isKeyed = isKeyed;
  Collection.isIndexed = isIndexed;
  Collection.isAssociative = isAssociative;
  Collection.isOrdered = isOrdered;

  Collection.Iterator = Iterator;

  mixin(Collection, {
    // ### Conversion to other types

    toArray: function toArray() {
      assertNotInfinite(this.size);
      var array = new Array(this.size || 0);
      var useTuples = isKeyed(this);
      var i = 0;
      this.__iterate(function (v, k) {
        // Keyed collections produce an array of tuples.
        array[i++] = useTuples ? [k, v] : v;
      });
      return array;
    },

    toIndexedSeq: function toIndexedSeq() {
      return new ToIndexedSequence(this);
    },

    toJS: function toJS$1() {
      return toJS(this);
    },

    toKeyedSeq: function toKeyedSeq() {
      return new ToKeyedSequence(this, true);
    },

    toMap: function toMap() {
      // Use Late Binding here to solve the circular dependency.
      return Map(this.toKeyedSeq());
    },

    toObject: toObject,

    toOrderedMap: function toOrderedMap() {
      // Use Late Binding here to solve the circular dependency.
      return OrderedMap(this.toKeyedSeq());
    },

    toOrderedSet: function toOrderedSet() {
      // Use Late Binding here to solve the circular dependency.
      return OrderedSet(isKeyed(this) ? this.valueSeq() : this);
    },

    toSet: function toSet() {
      // Use Late Binding here to solve the circular dependency.
      return Set(isKeyed(this) ? this.valueSeq() : this);
    },

    toSetSeq: function toSetSeq() {
      return new ToSetSequence(this);
    },

    toSeq: function toSeq() {
      return isIndexed(this)
        ? this.toIndexedSeq()
        : isKeyed(this)
          ? this.toKeyedSeq()
          : this.toSetSeq();
    },

    toStack: function toStack() {
      // Use Late Binding here to solve the circular dependency.
      return Stack(isKeyed(this) ? this.valueSeq() : this);
    },

    toList: function toList() {
      // Use Late Binding here to solve the circular dependency.
      return List(isKeyed(this) ? this.valueSeq() : this);
    },

    // ### Common JavaScript methods and properties

    toString: function toString() {
      return '[Collection]';
    },

    __toString: function __toString(head, tail) {
      if (this.size === 0) {
        return head + tail;
      }
      return (
        head +
        ' ' +
        this.toSeq()
          .map(this.__toStringMapper)
          .join(', ') +
        ' ' +
        tail
      );
    },

    // ### ES6 Collection methods (ES6 Array and Map)

    concat: function concat() {
      var values = [], len = arguments.length;
      while ( len-- ) values[ len ] = arguments[ len ];

      return reify(this, concatFactory(this, values));
    },

    includes: function includes(searchValue) {
      return this.some(function (value) { return is(value, searchValue); });
    },

    entries: function entries() {
      return this.__iterator(ITERATE_ENTRIES);
    },

    every: function every(predicate, context) {
      assertNotInfinite(this.size);
      var returnValue = true;
      this.__iterate(function (v, k, c) {
        if (!predicate.call(context, v, k, c)) {
          returnValue = false;
          return false;
        }
      });
      return returnValue;
    },

    filter: function filter(predicate, context) {
      return reify(this, filterFactory(this, predicate, context, true));
    },

    find: function find(predicate, context, notSetValue) {
      var entry = this.findEntry(predicate, context);
      return entry ? entry[1] : notSetValue;
    },

    forEach: function forEach(sideEffect, context) {
      assertNotInfinite(this.size);
      return this.__iterate(context ? sideEffect.bind(context) : sideEffect);
    },

    join: function join(separator) {
      assertNotInfinite(this.size);
      separator = separator !== undefined ? '' + separator : ',';
      var joined = '';
      var isFirst = true;
      this.__iterate(function (v) {
        isFirst ? (isFirst = false) : (joined += separator);
        joined += v !== null && v !== undefined ? v.toString() : '';
      });
      return joined;
    },

    keys: function keys() {
      return this.__iterator(ITERATE_KEYS);
    },

    map: function map(mapper, context) {
      return reify(this, mapFactory(this, mapper, context));
    },

    reduce: function reduce$1(reducer, initialReduction, context) {
      return reduce(
        this,
        reducer,
        initialReduction,
        context,
        arguments.length < 2,
        false
      );
    },

    reduceRight: function reduceRight(reducer, initialReduction, context) {
      return reduce(
        this,
        reducer,
        initialReduction,
        context,
        arguments.length < 2,
        true
      );
    },

    reverse: function reverse() {
      return reify(this, reverseFactory(this, true));
    },

    slice: function slice(begin, end) {
      return reify(this, sliceFactory(this, begin, end, true));
    },

    some: function some(predicate, context) {
      return !this.every(not(predicate), context);
    },

    sort: function sort(comparator) {
      return reify(this, sortFactory(this, comparator));
    },

    values: function values() {
      return this.__iterator(ITERATE_VALUES);
    },

    // ### More sequential methods

    butLast: function butLast() {
      return this.slice(0, -1);
    },

    isEmpty: function isEmpty() {
      return this.size !== undefined ? this.size === 0 : !this.some(function () { return true; });
    },

    count: function count(predicate, context) {
      return ensureSize(
        predicate ? this.toSeq().filter(predicate, context) : this
      );
    },

    countBy: function countBy(grouper, context) {
      return countByFactory(this, grouper, context);
    },

    equals: function equals(other) {
      return deepEqual(this, other);
    },

    entrySeq: function entrySeq() {
      var collection = this;
      if (collection._cache) {
        // We cache as an entries array, so we can just return the cache!
        return new ArraySeq(collection._cache);
      }
      var entriesSequence = collection
        .toSeq()
        .map(entryMapper)
        .toIndexedSeq();
      entriesSequence.fromEntrySeq = function () { return collection.toSeq(); };
      return entriesSequence;
    },

    filterNot: function filterNot(predicate, context) {
      return this.filter(not(predicate), context);
    },

    findEntry: function findEntry(predicate, context, notSetValue) {
      var found = notSetValue;
      this.__iterate(function (v, k, c) {
        if (predicate.call(context, v, k, c)) {
          found = [k, v];
          return false;
        }
      });
      return found;
    },

    findKey: function findKey(predicate, context) {
      var entry = this.findEntry(predicate, context);
      return entry && entry[0];
    },

    findLast: function findLast(predicate, context, notSetValue) {
      return this.toKeyedSeq()
        .reverse()
        .find(predicate, context, notSetValue);
    },

    findLastEntry: function findLastEntry(predicate, context, notSetValue) {
      return this.toKeyedSeq()
        .reverse()
        .findEntry(predicate, context, notSetValue);
    },

    findLastKey: function findLastKey(predicate, context) {
      return this.toKeyedSeq()
        .reverse()
        .findKey(predicate, context);
    },

    first: function first(notSetValue) {
      return this.find(returnTrue, null, notSetValue);
    },

    flatMap: function flatMap(mapper, context) {
      return reify(this, flatMapFactory(this, mapper, context));
    },

    flatten: function flatten(depth) {
      return reify(this, flattenFactory(this, depth, true));
    },

    fromEntrySeq: function fromEntrySeq() {
      return new FromEntriesSequence(this);
    },

    get: function get(searchKey, notSetValue) {
      return this.find(function (_, key) { return is(key, searchKey); }, undefined, notSetValue);
    },

    getIn: getIn$1,

    groupBy: function groupBy(grouper, context) {
      return groupByFactory(this, grouper, context);
    },

    has: function has(searchKey) {
      return this.get(searchKey, NOT_SET) !== NOT_SET;
    },

    hasIn: hasIn$1,

    isSubset: function isSubset(iter) {
      iter = typeof iter.includes === 'function' ? iter : Collection(iter);
      return this.every(function (value) { return iter.includes(value); });
    },

    isSuperset: function isSuperset(iter) {
      iter = typeof iter.isSubset === 'function' ? iter : Collection(iter);
      return iter.isSubset(this);
    },

    keyOf: function keyOf(searchValue) {
      return this.findKey(function (value) { return is(value, searchValue); });
    },

    keySeq: function keySeq() {
      return this.toSeq()
        .map(keyMapper)
        .toIndexedSeq();
    },

    last: function last(notSetValue) {
      return this.toSeq()
        .reverse()
        .first(notSetValue);
    },

    lastKeyOf: function lastKeyOf(searchValue) {
      return this.toKeyedSeq()
        .reverse()
        .keyOf(searchValue);
    },

    max: function max(comparator) {
      return maxFactory(this, comparator);
    },

    maxBy: function maxBy(mapper, comparator) {
      return maxFactory(this, comparator, mapper);
    },

    min: function min(comparator) {
      return maxFactory(
        this,
        comparator ? neg(comparator) : defaultNegComparator
      );
    },

    minBy: function minBy(mapper, comparator) {
      return maxFactory(
        this,
        comparator ? neg(comparator) : defaultNegComparator,
        mapper
      );
    },

    rest: function rest() {
      return this.slice(1);
    },

    skip: function skip(amount) {
      return amount === 0 ? this : this.slice(Math.max(0, amount));
    },

    skipLast: function skipLast(amount) {
      return amount === 0 ? this : this.slice(0, -Math.max(0, amount));
    },

    skipWhile: function skipWhile(predicate, context) {
      return reify(this, skipWhileFactory(this, predicate, context, true));
    },

    skipUntil: function skipUntil(predicate, context) {
      return this.skipWhile(not(predicate), context);
    },

    sortBy: function sortBy(mapper, comparator) {
      return reify(this, sortFactory(this, comparator, mapper));
    },

    take: function take(amount) {
      return this.slice(0, Math.max(0, amount));
    },

    takeLast: function takeLast(amount) {
      return this.slice(-Math.max(0, amount));
    },

    takeWhile: function takeWhile(predicate, context) {
      return reify(this, takeWhileFactory(this, predicate, context));
    },

    takeUntil: function takeUntil(predicate, context) {
      return this.takeWhile(not(predicate), context);
    },

    update: function update(fn) {
      return fn(this);
    },

    valueSeq: function valueSeq() {
      return this.toIndexedSeq();
    },

    // ### Hashable Object

    hashCode: function hashCode() {
      return this.__hash || (this.__hash = hashCollection(this));
    },

    // ### Internal

    // abstract __iterate(fn, reverse)

    // abstract __iterator(type, reverse)
  });

  var CollectionPrototype = Collection.prototype;
  CollectionPrototype[IS_COLLECTION_SYMBOL] = true;
  CollectionPrototype[ITERATOR_SYMBOL] = CollectionPrototype.values;
  CollectionPrototype.toJSON = CollectionPrototype.toArray;
  CollectionPrototype.__toStringMapper = quoteString;
  CollectionPrototype.inspect = CollectionPrototype.toSource = function() {
    return this.toString();
  };
  CollectionPrototype.chain = CollectionPrototype.flatMap;
  CollectionPrototype.contains = CollectionPrototype.includes;

  mixin(KeyedCollection, {
    // ### More sequential methods

    flip: function flip() {
      return reify(this, flipFactory(this));
    },

    mapEntries: function mapEntries(mapper, context) {
      var this$1 = this;

      var iterations = 0;
      return reify(
        this,
        this.toSeq()
          .map(function (v, k) { return mapper.call(context, [k, v], iterations++, this$1); })
          .fromEntrySeq()
      );
    },

    mapKeys: function mapKeys(mapper, context) {
      var this$1 = this;

      return reify(
        this,
        this.toSeq()
          .flip()
          .map(function (k, v) { return mapper.call(context, k, v, this$1); })
          .flip()
      );
    },
  });

  var KeyedCollectionPrototype = KeyedCollection.prototype;
  KeyedCollectionPrototype[IS_KEYED_SYMBOL] = true;
  KeyedCollectionPrototype[ITERATOR_SYMBOL] = CollectionPrototype.entries;
  KeyedCollectionPrototype.toJSON = toObject;
  KeyedCollectionPrototype.__toStringMapper = function (v, k) { return quoteString(k) + ': ' + quoteString(v); };

  mixin(IndexedCollection, {
    // ### Conversion to other types

    toKeyedSeq: function toKeyedSeq() {
      return new ToKeyedSequence(this, false);
    },

    // ### ES6 Collection methods (ES6 Array and Map)

    filter: function filter(predicate, context) {
      return reify(this, filterFactory(this, predicate, context, false));
    },

    findIndex: function findIndex(predicate, context) {
      var entry = this.findEntry(predicate, context);
      return entry ? entry[0] : -1;
    },

    indexOf: function indexOf(searchValue) {
      var key = this.keyOf(searchValue);
      return key === undefined ? -1 : key;
    },

    lastIndexOf: function lastIndexOf(searchValue) {
      var key = this.lastKeyOf(searchValue);
      return key === undefined ? -1 : key;
    },

    reverse: function reverse() {
      return reify(this, reverseFactory(this, false));
    },

    slice: function slice(begin, end) {
      return reify(this, sliceFactory(this, begin, end, false));
    },

    splice: function splice(index, removeNum /*, ...values*/) {
      var numArgs = arguments.length;
      removeNum = Math.max(removeNum || 0, 0);
      if (numArgs === 0 || (numArgs === 2 && !removeNum)) {
        return this;
      }
      // If index is negative, it should resolve relative to the size of the
      // collection. However size may be expensive to compute if not cached, so
      // only call count() if the number is in fact negative.
      index = resolveBegin(index, index < 0 ? this.count() : this.size);
      var spliced = this.slice(0, index);
      return reify(
        this,
        numArgs === 1
          ? spliced
          : spliced.concat(arrCopy(arguments, 2), this.slice(index + removeNum))
      );
    },

    // ### More collection methods

    findLastIndex: function findLastIndex(predicate, context) {
      var entry = this.findLastEntry(predicate, context);
      return entry ? entry[0] : -1;
    },

    first: function first(notSetValue) {
      return this.get(0, notSetValue);
    },

    flatten: function flatten(depth) {
      return reify(this, flattenFactory(this, depth, false));
    },

    get: function get(index, notSetValue) {
      index = wrapIndex(this, index);
      return index < 0 ||
        (this.size === Infinity || (this.size !== undefined && index > this.size))
        ? notSetValue
        : this.find(function (_, key) { return key === index; }, undefined, notSetValue);
    },

    has: function has(index) {
      index = wrapIndex(this, index);
      return (
        index >= 0 &&
        (this.size !== undefined
          ? this.size === Infinity || index < this.size
          : this.indexOf(index) !== -1)
      );
    },

    interpose: function interpose(separator) {
      return reify(this, interposeFactory(this, separator));
    },

    interleave: function interleave(/*...collections*/) {
      var collections = [this].concat(arrCopy(arguments));
      var zipped = zipWithFactory(this.toSeq(), IndexedSeq.of, collections);
      var interleaved = zipped.flatten(true);
      if (zipped.size) {
        interleaved.size = zipped.size * collections.length;
      }
      return reify(this, interleaved);
    },

    keySeq: function keySeq() {
      return Range(0, this.size);
    },

    last: function last(notSetValue) {
      return this.get(-1, notSetValue);
    },

    skipWhile: function skipWhile(predicate, context) {
      return reify(this, skipWhileFactory(this, predicate, context, false));
    },

    zip: function zip(/*, ...collections */) {
      var collections = [this].concat(arrCopy(arguments));
      return reify(this, zipWithFactory(this, defaultZipper, collections));
    },

    zipAll: function zipAll(/*, ...collections */) {
      var collections = [this].concat(arrCopy(arguments));
      return reify(this, zipWithFactory(this, defaultZipper, collections, true));
    },

    zipWith: function zipWith(zipper /*, ...collections */) {
      var collections = arrCopy(arguments);
      collections[0] = this;
      return reify(this, zipWithFactory(this, zipper, collections));
    },
  });

  var IndexedCollectionPrototype = IndexedCollection.prototype;
  IndexedCollectionPrototype[IS_INDEXED_SYMBOL] = true;
  IndexedCollectionPrototype[IS_ORDERED_SYMBOL] = true;

  mixin(SetCollection, {
    // ### ES6 Collection methods (ES6 Array and Map)

    get: function get(value, notSetValue) {
      return this.has(value) ? value : notSetValue;
    },

    includes: function includes(value) {
      return this.has(value);
    },

    // ### More sequential methods

    keySeq: function keySeq() {
      return this.valueSeq();
    },
  });

  SetCollection.prototype.has = CollectionPrototype.includes;
  SetCollection.prototype.contains = SetCollection.prototype.includes;

  // Mixin subclasses

  mixin(KeyedSeq, KeyedCollection.prototype);
  mixin(IndexedSeq, IndexedCollection.prototype);
  mixin(SetSeq, SetCollection.prototype);

  // #pragma Helper functions

  function reduce(collection, reducer, reduction, context, useFirst, reverse) {
    assertNotInfinite(collection.size);
    collection.__iterate(function (v, k, c) {
      if (useFirst) {
        useFirst = false;
        reduction = v;
      } else {
        reduction = reducer.call(context, reduction, v, k, c);
      }
    }, reverse);
    return reduction;
  }

  function keyMapper(v, k) {
    return k;
  }

  function entryMapper(v, k) {
    return [k, v];
  }

  function not(predicate) {
    return function() {
      return !predicate.apply(this, arguments);
    };
  }

  function neg(predicate) {
    return function() {
      return -predicate.apply(this, arguments);
    };
  }

  function defaultZipper() {
    return arrCopy(arguments);
  }

  function defaultNegComparator(a, b) {
    return a < b ? 1 : a > b ? -1 : 0;
  }

  function hashCollection(collection) {
    if (collection.size === Infinity) {
      return 0;
    }
    var ordered = isOrdered(collection);
    var keyed = isKeyed(collection);
    var h = ordered ? 1 : 0;
    var size = collection.__iterate(
      keyed
        ? ordered
          ? function (v, k) {
              h = (31 * h + hashMerge(hash(v), hash(k))) | 0;
            }
          : function (v, k) {
              h = (h + hashMerge(hash(v), hash(k))) | 0;
            }
        : ordered
          ? function (v) {
              h = (31 * h + hash(v)) | 0;
            }
          : function (v) {
              h = (h + hash(v)) | 0;
            }
    );
    return murmurHashOfSize(size, h);
  }

  function murmurHashOfSize(size, h) {
    h = imul(h, 0xcc9e2d51);
    h = imul((h << 15) | (h >>> -15), 0x1b873593);
    h = imul((h << 13) | (h >>> -13), 5);
    h = ((h + 0xe6546b64) | 0) ^ size;
    h = imul(h ^ (h >>> 16), 0x85ebca6b);
    h = imul(h ^ (h >>> 13), 0xc2b2ae35);
    h = smi(h ^ (h >>> 16));
    return h;
  }

  function hashMerge(a, b) {
    return (a ^ (b + 0x9e3779b9 + (a << 6) + (a >> 2))) | 0; // int
  }

  var OrderedSet = /*@__PURE__*/(function (Set$$1) {
    function OrderedSet(value) {
      return value === null || value === undefined
        ? emptyOrderedSet()
        : isOrderedSet(value)
          ? value
          : emptyOrderedSet().withMutations(function (set) {
              var iter = SetCollection(value);
              assertNotInfinite(iter.size);
              iter.forEach(function (v) { return set.add(v); });
            });
    }

    if ( Set$$1 ) OrderedSet.__proto__ = Set$$1;
    OrderedSet.prototype = Object.create( Set$$1 && Set$$1.prototype );
    OrderedSet.prototype.constructor = OrderedSet;

    OrderedSet.of = function of (/*...values*/) {
      return this(arguments);
    };

    OrderedSet.fromKeys = function fromKeys (value) {
      return this(KeyedCollection(value).keySeq());
    };

    OrderedSet.prototype.toString = function toString () {
      return this.__toString('OrderedSet {', '}');
    };

    return OrderedSet;
  }(Set));

  OrderedSet.isOrderedSet = isOrderedSet;

  var OrderedSetPrototype = OrderedSet.prototype;
  OrderedSetPrototype[IS_ORDERED_SYMBOL] = true;
  OrderedSetPrototype.zip = IndexedCollectionPrototype.zip;
  OrderedSetPrototype.zipWith = IndexedCollectionPrototype.zipWith;

  OrderedSetPrototype.__empty = emptyOrderedSet;
  OrderedSetPrototype.__make = makeOrderedSet;

  function makeOrderedSet(map, ownerID) {
    var set = Object.create(OrderedSetPrototype);
    set.size = map ? map.size : 0;
    set._map = map;
    set.__ownerID = ownerID;
    return set;
  }

  var EMPTY_ORDERED_SET;
  function emptyOrderedSet() {
    return (
      EMPTY_ORDERED_SET || (EMPTY_ORDERED_SET = makeOrderedSet(emptyOrderedMap()))
    );
  }

  var Record = function Record(defaultValues, name) {
    var hasInitialized;

    var RecordType = function Record(values) {
      var this$1 = this;

      if (values instanceof RecordType) {
        return values;
      }
      if (!(this instanceof RecordType)) {
        return new RecordType(values);
      }
      if (!hasInitialized) {
        hasInitialized = true;
        var keys = Object.keys(defaultValues);
        var indices = (RecordTypePrototype._indices = {});
        // Deprecated: left to attempt not to break any external code which
        // relies on a ._name property existing on record instances.
        // Use Record.getDescriptiveName() instead
        RecordTypePrototype._name = name;
        RecordTypePrototype._keys = keys;
        RecordTypePrototype._defaultValues = defaultValues;
        for (var i = 0; i < keys.length; i++) {
          var propName = keys[i];
          indices[propName] = i;
          if (RecordTypePrototype[propName]) {
            /* eslint-disable no-console */
            typeof console === 'object' &&
              console.warn &&
              console.warn(
                'Cannot define ' +
                  recordName(this) +
                  ' with property "' +
                  propName +
                  '" since that property name is part of the Record API.'
              );
            /* eslint-enable no-console */
          } else {
            setProp(RecordTypePrototype, propName);
          }
        }
      }
      this.__ownerID = undefined;
      this._values = List().withMutations(function (l) {
        l.setSize(this$1._keys.length);
        KeyedCollection(values).forEach(function (v, k) {
          l.set(this$1._indices[k], v === this$1._defaultValues[k] ? undefined : v);
        });
      });
    };

    var RecordTypePrototype = (RecordType.prototype = Object.create(
      RecordPrototype
    ));
    RecordTypePrototype.constructor = RecordType;

    if (name) {
      RecordType.displayName = name;
    }

    return RecordType;
  };

  Record.prototype.toString = function toString () {
    var str = recordName(this) + ' { ';
    var keys = this._keys;
    var k;
    for (var i = 0, l = keys.length; i !== l; i++) {
      k = keys[i];
      str += (i ? ', ' : '') + k + ': ' + quoteString(this.get(k));
    }
    return str + ' }';
  };

  Record.prototype.equals = function equals (other) {
    return (
      this === other ||
      (other &&
        this._keys === other._keys &&
        recordSeq(this).equals(recordSeq(other)))
    );
  };

  Record.prototype.hashCode = function hashCode () {
    return recordSeq(this).hashCode();
  };

  // @pragma Access

  Record.prototype.has = function has (k) {
    return this._indices.hasOwnProperty(k);
  };

  Record.prototype.get = function get (k, notSetValue) {
    if (!this.has(k)) {
      return notSetValue;
    }
    var index = this._indices[k];
    var value = this._values.get(index);
    return value === undefined ? this._defaultValues[k] : value;
  };

  // @pragma Modification

  Record.prototype.set = function set (k, v) {
    if (this.has(k)) {
      var newValues = this._values.set(
        this._indices[k],
        v === this._defaultValues[k] ? undefined : v
      );
      if (newValues !== this._values && !this.__ownerID) {
        return makeRecord(this, newValues);
      }
    }
    return this;
  };

  Record.prototype.remove = function remove (k) {
    return this.set(k);
  };

  Record.prototype.clear = function clear () {
    var newValues = this._values.clear().setSize(this._keys.length);
    return this.__ownerID ? this : makeRecord(this, newValues);
  };

  Record.prototype.wasAltered = function wasAltered () {
    return this._values.wasAltered();
  };

  Record.prototype.toSeq = function toSeq () {
    return recordSeq(this);
  };

  Record.prototype.toJS = function toJS$1 () {
    return toJS(this);
  };

  Record.prototype.entries = function entries () {
    return this.__iterator(ITERATE_ENTRIES);
  };

  Record.prototype.__iterator = function __iterator (type, reverse) {
    return recordSeq(this).__iterator(type, reverse);
  };

  Record.prototype.__iterate = function __iterate (fn, reverse) {
    return recordSeq(this).__iterate(fn, reverse);
  };

  Record.prototype.__ensureOwner = function __ensureOwner (ownerID) {
    if (ownerID === this.__ownerID) {
      return this;
    }
    var newValues = this._values.__ensureOwner(ownerID);
    if (!ownerID) {
      this.__ownerID = ownerID;
      this._values = newValues;
      return this;
    }
    return makeRecord(this, newValues, ownerID);
  };

  Record.isRecord = isRecord;
  Record.getDescriptiveName = recordName;
  var RecordPrototype = Record.prototype;
  RecordPrototype[IS_RECORD_SYMBOL] = true;
  RecordPrototype[DELETE] = RecordPrototype.remove;
  RecordPrototype.deleteIn = RecordPrototype.removeIn = deleteIn;
  RecordPrototype.getIn = getIn$1;
  RecordPrototype.hasIn = CollectionPrototype.hasIn;
  RecordPrototype.merge = merge;
  RecordPrototype.mergeWith = mergeWith;
  RecordPrototype.mergeIn = mergeIn;
  RecordPrototype.mergeDeep = mergeDeep$1;
  RecordPrototype.mergeDeepWith = mergeDeepWith$1;
  RecordPrototype.mergeDeepIn = mergeDeepIn;
  RecordPrototype.setIn = setIn$1;
  RecordPrototype.update = update$1;
  RecordPrototype.updateIn = updateIn$1;
  RecordPrototype.withMutations = withMutations;
  RecordPrototype.asMutable = asMutable;
  RecordPrototype.asImmutable = asImmutable;
  RecordPrototype[ITERATOR_SYMBOL] = RecordPrototype.entries;
  RecordPrototype.toJSON = RecordPrototype.toObject =
    CollectionPrototype.toObject;
  RecordPrototype.inspect = RecordPrototype.toSource = function() {
    return this.toString();
  };

  function makeRecord(likeRecord, values, ownerID) {
    var record = Object.create(Object.getPrototypeOf(likeRecord));
    record._values = values;
    record.__ownerID = ownerID;
    return record;
  }

  function recordName(record) {
    return record.constructor.displayName || record.constructor.name || 'Record';
  }

  function recordSeq(record) {
    return keyedSeqFromValue(record._keys.map(function (k) { return [k, record.get(k)]; }));
  }

  function setProp(prototype, name) {
    try {
      Object.defineProperty(prototype, name, {
        get: function() {
          return this.get(name);
        },
        set: function(value) {
          invariant(this.__ownerID, 'Cannot set on an immutable record.');
          this.set(name, value);
        },
      });
    } catch (error) {
      // Object.defineProperty failed. Probably IE8.
    }
  }

  /**
   * Returns a lazy Seq of `value` repeated `times` times. When `times` is
   * undefined, returns an infinite sequence of `value`.
   */
  var Repeat = /*@__PURE__*/(function (IndexedSeq$$1) {
    function Repeat(value, times) {
      if (!(this instanceof Repeat)) {
        return new Repeat(value, times);
      }
      this._value = value;
      this.size = times === undefined ? Infinity : Math.max(0, times);
      if (this.size === 0) {
        if (EMPTY_REPEAT) {
          return EMPTY_REPEAT;
        }
        EMPTY_REPEAT = this;
      }
    }

    if ( IndexedSeq$$1 ) Repeat.__proto__ = IndexedSeq$$1;
    Repeat.prototype = Object.create( IndexedSeq$$1 && IndexedSeq$$1.prototype );
    Repeat.prototype.constructor = Repeat;

    Repeat.prototype.toString = function toString () {
      if (this.size === 0) {
        return 'Repeat []';
      }
      return 'Repeat [ ' + this._value + ' ' + this.size + ' times ]';
    };

    Repeat.prototype.get = function get (index, notSetValue) {
      return this.has(index) ? this._value : notSetValue;
    };

    Repeat.prototype.includes = function includes (searchValue) {
      return is(this._value, searchValue);
    };

    Repeat.prototype.slice = function slice (begin, end) {
      var size = this.size;
      return wholeSlice(begin, end, size)
        ? this
        : new Repeat(
            this._value,
            resolveEnd(end, size) - resolveBegin(begin, size)
          );
    };

    Repeat.prototype.reverse = function reverse () {
      return this;
    };

    Repeat.prototype.indexOf = function indexOf (searchValue) {
      if (is(this._value, searchValue)) {
        return 0;
      }
      return -1;
    };

    Repeat.prototype.lastIndexOf = function lastIndexOf (searchValue) {
      if (is(this._value, searchValue)) {
        return this.size;
      }
      return -1;
    };

    Repeat.prototype.__iterate = function __iterate (fn, reverse) {
      var size = this.size;
      var i = 0;
      while (i !== size) {
        if (fn(this._value, reverse ? size - ++i : i++, this) === false) {
          break;
        }
      }
      return i;
    };

    Repeat.prototype.__iterator = function __iterator (type, reverse) {
      var this$1 = this;

      var size = this.size;
      var i = 0;
      return new Iterator(
        function () { return i === size
            ? iteratorDone()
            : iteratorValue(type, reverse ? size - ++i : i++, this$1._value); }
      );
    };

    Repeat.prototype.equals = function equals (other) {
      return other instanceof Repeat
        ? is(this._value, other._value)
        : deepEqual(other);
    };

    return Repeat;
  }(IndexedSeq));

  var EMPTY_REPEAT;

  function fromJS(value, converter) {
    return fromJSWith(
      [],
      converter || defaultConverter,
      value,
      '',
      converter && converter.length > 2 ? [] : undefined,
      { '': value }
    );
  }

  function fromJSWith(stack, converter, value, key, keyPath, parentValue) {
    var toSeq = Array.isArray(value)
      ? IndexedSeq
      : isPlainObj(value)
        ? KeyedSeq
        : null;
    if (toSeq) {
      if (~stack.indexOf(value)) {
        throw new TypeError('Cannot convert circular structure to Immutable');
      }
      stack.push(value);
      keyPath && key !== '' && keyPath.push(key);
      var converted = converter.call(
        parentValue,
        key,
        toSeq(value).map(function (v, k) { return fromJSWith(stack, converter, v, k, keyPath, value); }
        ),
        keyPath && keyPath.slice()
      );
      stack.pop();
      keyPath && keyPath.pop();
      return converted;
    }
    return value;
  }

  function defaultConverter(k, v) {
    return isKeyed(v) ? v.toMap() : v.toList();
  }

  var version = "4.0.0-rc.11";

  var Immutable = {
    version: version,

    Collection: Collection,
    // Note: Iterable is deprecated
    Iterable: Collection,

    Seq: Seq,
    Map: Map,
    OrderedMap: OrderedMap,
    List: List,
    Stack: Stack,
    Set: Set,
    OrderedSet: OrderedSet,

    Record: Record,
    Range: Range,
    Repeat: Repeat,

    is: is,
    fromJS: fromJS,
    hash: hash,

    isImmutable: isImmutable,
    isCollection: isCollection,
    isKeyed: isKeyed,
    isIndexed: isIndexed,
    isAssociative: isAssociative,
    isOrdered: isOrdered,
    isValueObject: isValueObject,
    isSeq: isSeq,
    isList: isList,
    isMap: isMap,
    isOrderedMap: isOrderedMap,
    isStack: isStack,
    isSet: isSet,
    isOrderedSet: isOrderedSet,
    isRecord: isRecord,

    get: get,
    getIn: getIn,
    has: has,
    hasIn: hasIn,
    merge: merge$1,
    mergeDeep: mergeDeep,
    mergeWith: mergeWith$1,
    mergeDeepWith: mergeDeepWith,
    remove: remove,
    removeIn: removeIn,
    set: set,
    setIn: setIn,
    update: update,
    updateIn: updateIn,
  };

  // Note: Iterable is deprecated
  var Iterable = Collection;

  exports.default = Immutable;
  exports.version = version;
  exports.Collection = Collection;
  exports.Iterable = Iterable;
  exports.Seq = Seq;
  exports.Map = Map;
  exports.OrderedMap = OrderedMap;
  exports.List = List;
  exports.Stack = Stack;
  exports.Set = Set;
  exports.OrderedSet = OrderedSet;
  exports.Record = Record;
  exports.Range = Range;
  exports.Repeat = Repeat;
  exports.is = is;
  exports.fromJS = fromJS;
  exports.hash = hash;
  exports.isImmutable = isImmutable;
  exports.isCollection = isCollection;
  exports.isKeyed = isKeyed;
  exports.isIndexed = isIndexed;
  exports.isAssociative = isAssociative;
  exports.isOrdered = isOrdered;
  exports.isValueObject = isValueObject;
  exports.get = get;
  exports.getIn = getIn;
  exports.has = has;
  exports.hasIn = hasIn;
  exports.merge = merge$1;
  exports.mergeDeep = mergeDeep;
  exports.mergeWith = mergeWith$1;
  exports.mergeDeepWith = mergeDeepWith;
  exports.remove = remove;
  exports.removeIn = removeIn;
  exports.set = set;
  exports.setIn = setIn;
  exports.update = update;
  exports.updateIn = updateIn;

  Object.defineProperty(exports, '__esModule', { value: true });

})));
});

unwrapExports(immutable$3);

var draftjsUtils$1 = createCommonjsModule(function (module, exports) {
!function(t,e){module.exports=e(Draft,immutable$3);}(window,function(n,r){return u={},o.m=i=[function(t,e){t.exports=n;},function(t,e){t.exports=r;},function(t,e,n){t.exports=n(3);},function(t,e,n){n.r(e);var C=n(0),i=n(1);function m(t){var e=t.getSelection(),n=t.getCurrentContent(),r=e.getStartKey(),o=e.getEndKey(),i=n.getBlockMap();return i.toSeq().skipUntil(function(t,e){return e===r}).takeUntil(function(t,e){return e===o}).concat([[o,i.get(o)]])}function a(t){return m(t).toList()}function f(t){if(t)return a(t).get(0)}function r(t){if(t){var n=f(t),e=t.getCurrentContent().getBlockMap().toSeq().toList(),r=0;if(e.forEach(function(t,e){t.get("key")===n.get("key")&&(r=e-1);}),-1<r)return e.get(r)}}function o(t){return t?t.getCurrentContent().getBlockMap().toList():new i.List}function u(t){var e=a(t);if(!e.some(function(t){return t.type!==e.get(0).type}))return e.get(0).type}function c(t){var e=C.RichUtils.tryToRemoveBlockStyle(t);return e?C.EditorState.push(t,e,"change-block-type"):t}function l(t){var e="",n=t.getSelection(),r=n.getAnchorOffset(),o=n.getFocusOffset(),i=a(t);if(0<i.size){if(n.getIsBackward()){var u=r;r=o,o=u;}for(var c=0;c<i.size;c+=1){var f=0===c?r:0,l=c===i.size-1?o:i.get(c).getText().length;e+=i.get(c).getText().slice(f,l);}}return e}function s(t){var e=t.getCurrentContent(),n=t.getSelection(),r=C.Modifier.removeRange(e,n,"forward"),o=r.getSelectionAfter(),i=r.getBlockForKey(o.getStartKey());return r=C.Modifier.insertText(r,o,"\n",i.getInlineStyleAt(o.getStartOffset()),null),C.EditorState.push(t,r,"insert-fragment")}function g(t){var e=C.Modifier.splitBlock(t.getCurrentContent(),t.getSelection());return c(C.EditorState.push(t,e,"split-block"))}function d(t){var e=t.getCurrentContent().getBlockMap().toList(),n=t.getSelection().merge({anchorKey:e.first().get("key"),anchorOffset:0,focusKey:e.last().get("key"),focusOffset:e.last().getLength()}),r=C.Modifier.removeRange(t.getCurrentContent(),n,"forward");return C.EditorState.push(t,r,"remove-range")}function S(t,e){var n=C.Modifier.setBlockData(t.getCurrentContent(),t.getSelection(),e);return C.EditorState.push(t,n,"change-block-data")}function p(t){var r=new i.Map({}),e=a(t);if(e&&0<e.size)for(var n=function(t){var n=e.get(t).getData();if(!n||0===n.size)return r=r.clear(),"break";if(0===t)r=n;else if(r.forEach(function(t,e){n.get(e)&&n.get(e)===t||(r=r.delete(e));}),0===r.size)return r=r.clear(),"break"},o=0;o<e.size;o+=1){if("break"===n(o))break}return r}var y=Object(i.Map)({code:{element:"pre"}}),v=C.DefaultDraftBlockRenderMap.merge(y);function b(t){if(t){var e=t.getType();return "unordered-list-item"===e||"ordered-list-item"===e}return !1}function h(t,e,n){var r,o=t.getSelection();r=o.getIsBackward()?o.getFocusKey():o.getAnchorKey();var i=t.getCurrentContent(),u=i.getBlockForKey(r),c=u.getType();if("unordered-list-item"!==c&&"ordered-list-item"!==c)return t;var f=i.getBlockBefore(r);if(!f)return t;if(f.getType()!==c)return t;var l=u.getDepth();if(1===e&&l===n)return t;var a,s,g,d,S,p,y,v=Math.min(f.getDepth()+1,n),b=(s=e,g=v,d=(a=t).getSelection(),S=a.getCurrentContent(),p=S.getBlockMap(),y=m(a).map(function(t){var e=t.getDepth()+s;return e=Math.max(0,Math.min(e,g)),t.set("depth",e)}),p=p.merge(y),S.merge({blockMap:p,selectionBefore:d,selectionAfter:d}));return C.EditorState.push(t,b,"adjust-depth")}function O(t,e){var n;return 13===(n=e).which&&(n.getModifierState("Shift")||n.getModifierState("Alt")||n.getModifierState("Control"))?t.getSelection().isCollapsed()?C.RichUtils.insertSoftNewline(t):s(t):function(t){var e=t.getSelection();if(e.isCollapsed()){var n=t.getCurrentContent(),r=e.getStartKey(),o=n.getBlockForKey(r);if(!b(o)&&"unstyled"!==o.getType()&&o.getLength()===e.getStartOffset())return g(t);if(b(o)&&0===o.getLength()){var i=o.getDepth();if(0===i)return c(t);if(0<i)return h(t,-1,i)}}}(t)}function k(e,t){var n=Object.keys(e);if(Object.getOwnPropertySymbols){var r=Object.getOwnPropertySymbols(e);t&&(r=r.filter(function(t){return Object.getOwnPropertyDescriptor(e,t).enumerable})),n.push.apply(n,r);}return n}function E(t,e,n){return e in t?Object.defineProperty(t,e,{value:n,enumerable:!0,configurable:!0,writable:!0}):t[e]=n,t}function I(t){return (I="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function R(t){var e=t.getSelection();if(e.isCollapsed()){var n={},r=t.getCurrentInlineStyle().toList().toJS();if(r)return ["BOLD","ITALIC","UNDERLINE","STRIKETHROUGH","CODE","SUPERSCRIPT","SUBSCRIPT"].forEach(function(t){n[t]=0<=r.indexOf(t);}),n}var u=e.getStartOffset(),c=e.getEndOffset(),f=a(t);if(0<f.size){var o=function(){for(var n={BOLD:!0,ITALIC:!0,UNDERLINE:!0,STRIKETHROUGH:!0,CODE:!0,SUPERSCRIPT:!0,SUBSCRIPT:!0},r=0;r<f.size;r+=1){var t=0===r?u:0,e=r===f.size-1?c:f.get(r).getText().length;t===e&&0===t?(t=1,e=2):t===e&&--t;for(var o=function(t){var e=f.get(r).getInlineStyleAt(t);["BOLD","ITALIC","UNDERLINE","STRIKETHROUGH","CODE","SUPERSCRIPT","SUBSCRIPT"].forEach(function(t){n[t]=n[t]&&e.get(t)===t;});},i=t;i<e;i+=1)o(i);}return {v:n}}();if("object"===I(o))return o.v}return {}}function B(t){var e,n=t.getSelection(),r=n.getStartOffset(),o=n.getEndOffset();r===o&&0===r?o=1:r===o&&--r;for(var i=f(t),u=r;u<o;u+=1){var c=i.getEntityAt(u);if(!c){e=void 0;break}if(u===r)e=c;else if(e!==c){e=void 0;break}}return e}function T(t,e){var n,r=f(t);return r.findEntityRanges(function(t){return t.get("entity")===e},function(t,e){n={start:t,end:e,text:r.get("text").slice(t,e)};}),n}function P(t,e,n){x[t]["".concat(t.toLowerCase(),"-").concat(n)]=E({},"".concat(e),n);}function j(){return function(e){for(var t=1;t<arguments.length;t++){var n=null!=arguments[t]?arguments[t]:{};t%2?k(Object(n),!0).forEach(function(t){E(e,t,n[t]);}):Object.getOwnPropertyDescriptors?Object.defineProperties(e,Object.getOwnPropertyDescriptors(n)):k(Object(n)).forEach(function(t){Object.defineProperty(e,t,Object.getOwnPropertyDescriptor(n,t));});}return e}({},x.color,{},x.bgcolor,{},x.fontSize,{},x.fontFamily,{CODE:x.CODE,SUPERSCRIPT:x.SUPERSCRIPT,SUBSCRIPT:x.SUBSCRIPT})}var x={color:{},bgcolor:{},fontSize:{},fontFamily:{},CODE:{fontFamily:"monospace",wordWrap:"break-word",background:"#f1f1f1",borderRadius:3,padding:"1px 3px"},SUPERSCRIPT:{fontSize:11,position:"relative",top:-8,display:"inline-flex"},SUBSCRIPT:{fontSize:11,position:"relative",bottom:-8,display:"inline-flex"}};function M(t,e,n){var r=t.getSelection(),o=Object.keys(x[e]).reduce(function(t,e){return C.Modifier.removeInlineStyle(t,r,e)},t.getCurrentContent()),i=C.EditorState.push(t,o,"changeinline-style"),u=t.getCurrentInlineStyle();if(r.isCollapsed()&&(i=u.reduce(function(t,e){return C.RichUtils.toggleInlineStyle(t,e)},i)),"SUPERSCRIPT"===e||"SUBSCRIPT"==e)u.has(n)||(i=C.RichUtils.toggleInlineStyle(i,n));else{var c="bgcolor"===e?"backgroundColor":e;u.has("".concat(c,"-").concat(n))||(i=C.RichUtils.toggleInlineStyle(i,"".concat(e.toLowerCase(),"-").concat(n)),P(e,c,n));}return i}function L(t){t&&t.getCurrentContent().getBlockMap().map(function(t){return t.get("characterList")}).toList().flatten().forEach(function(t){t&&0===t.indexOf("color-")?P("color","color",t.substr(6)):t&&0===t.indexOf("bgcolor-")?P("bgcolor","backgroundColor",t.substr(8)):t&&0===t.indexOf("fontsize-")?P("fontSize","fontSize",+t.substr(9)):t&&0===t.indexOf("fontfamily-")&&P("fontFamily","fontFamily",t.substr(11));});}function U(t,e,n){var r=t.getInlineStyleAt(n).toList().filter(function(t){return t.startsWith(e.toLowerCase())});if(r&&0<r.size)return r.get(0)}function w(r,l){if(r&&l&&0<l.length){var t=function(){var t=r.getSelection(),i={};if(t.isCollapsed())return l.forEach(function(t){i[t]=function(t,e){var n=t.getCurrentInlineStyle().toList().filter(function(t){return t.startsWith(e.toLowerCase())});if(n&&0<n.size)return n.get(0)}(r,t);}),{v:i};var u=t.getStartOffset(),c=t.getEndOffset(),f=a(r);if(0<f.size){for(var e=function(n){var t=0===n?u:0,e=n===f.size-1?c:f.get(n).getText().length;t===e&&0===t?(t=1,e=2):t===e&&--t;for(var r=function(e){e===t?l.forEach(function(t){i[t]=U(f.get(n),t,e);}):l.forEach(function(t){i[t]&&i[t]!==U(f.get(n),t,e)&&(i[t]=void 0);});},o=t;o<e;o+=1)r(o);},n=0;n<f.size;n+=1)e(n);return {v:i}}}();if("object"===I(t))return t.v}return {}}function D(e){var t=e.getCurrentInlineStyle(),n=e.getCurrentContent();return t.forEach(function(t){n=C.Modifier.removeInlineStyle(n,e.getSelection(),t);}),C.EditorState.push(e,n,"change-inline-style")}n.d(e,"isListBlock",function(){return b}),n.d(e,"changeDepth",function(){return h}),n.d(e,"handleNewLine",function(){return O}),n.d(e,"getEntityRange",function(){return T}),n.d(e,"getCustomStyleMap",function(){return j}),n.d(e,"toggleCustomInlineStyle",function(){return M}),n.d(e,"getSelectionEntity",function(){return B}),n.d(e,"extractInlineStyle",function(){return L}),n.d(e,"removeAllInlineStyles",function(){return D}),n.d(e,"getSelectionInlineStyle",function(){return R}),n.d(e,"getSelectionCustomInlineStyle",function(){return w}),n.d(e,"getSelectedBlocksMap",function(){return m}),n.d(e,"getSelectedBlocksList",function(){return a}),n.d(e,"getSelectedBlock",function(){return f}),n.d(e,"getBlockBeforeSelectedBlock",function(){return r}),n.d(e,"getAllBlocks",function(){return o}),n.d(e,"getSelectedBlocksType",function(){return u}),n.d(e,"removeSelectedBlocksStyle",function(){return c}),n.d(e,"getSelectionText",function(){return l}),n.d(e,"addLineBreakRemovingSelection",function(){return s}),n.d(e,"insertNewUnstyledBlock",function(){return g}),n.d(e,"clearEditorContent",function(){return d}),n.d(e,"setBlockData",function(){return S}),n.d(e,"getSelectedBlocksMetadata",function(){return p}),n.d(e,"blockRenderMap",function(){return v});}],o.c=u,o.d=function(t,e,n){o.o(t,e)||Object.defineProperty(t,e,{enumerable:!0,get:n});},o.r=function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0});},o.t=function(e,t){if(1&t&&(e=o(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var n=Object.create(null);if(o.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var r in e)o.d(n,r,function(t){return e[t]}.bind(null,r));return n},o.n=function(t){var e=t&&t.__esModule?function(){return t.default}:function(){return t};return o.d(e,"a",e),e},o.o=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},o.p="",o(o.s=2);function o(t){if(u[t])return u[t].exports;var e=u[t]={i:t,l:!1,exports:{}};return i[t].call(e.exports,e,e.exports,o),e.l=!0,e.exports}var i,u;});
});

unwrapExports(draftjsUtils$1);
var draftjsUtils_1$1 = draftjsUtils$1.draftjsUtils;

var content$1 = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.redo = exports.undo = exports.handleKeyCommand = exports.clear = exports.setMediaPosition = exports.removeMedia = exports.setMediaData = exports.insertMedias = exports.insertHorizontalLine = exports.insertAtomicBlock = exports.insertHTML = exports.insertText = exports.toggleSelectionLetterSpacing = exports.toggleSelectionFontFamily = exports.toggleSelectionLineHeight = exports.toggleSelectionFontSize = exports.toggleSelectionBackgroundColor = exports.toggleSelectionColor = exports.decreaseSelectionIndent = exports.increaseSelectionIndent = exports.toggleSelectionIndent = exports.toggleSelectionAlignment = exports.removeSelectionInlineStyles = exports.toggleSelectionInlineStyle = exports.selectionHasInlineStyle = exports.getSelectionInlineStyle = exports.toggleSelectionLink = exports.toggleSelectionEntity = exports.getSelectionEntityData = exports.getSelectionEntityType = exports.toggleSelectionBlockType = exports.getSelectionText = exports.getSelectionBlockType = exports.getSelectionBlockData = exports.setSelectionBlockData = exports.getSelectedBlocks = exports.updateEachCharacterOfSelection = exports.getSelectionBlock = exports.removeBlock = exports.selectNextBlock = exports.selectBlock = exports.selectionContainsStrictBlock = exports.selectionContainsBlockType = exports.isSelectionCollapsed = exports.createEditorState = exports.createEmptyEditorState = exports.isEditorState = exports.registerStrictBlockType = undefined;









var _immutable2 = _interopRequireDefault(immutable$3);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var strictBlockTypes = ['atomic'];

var registerStrictBlockType = exports.registerStrictBlockType = function registerStrictBlockType(blockType) {
  strictBlockTypes.indexOf(blockType) === -1 && strictBlockTypes.push(blockType);
};

var isEditorState = exports.isEditorState = function isEditorState(editorState) {
  return editorState instanceof Draft.EditorState;
};

var createEmptyEditorState = exports.createEmptyEditorState = function createEmptyEditorState(editorDecorators) {
  return Draft.EditorState.createEmpty(editorDecorators);
};

var createEditorState = exports.createEditorState = function createEditorState(contentState, editorDecorators) {
  return Draft.EditorState.createWithContent(contentState, editorDecorators);
};

var isSelectionCollapsed = exports.isSelectionCollapsed = function isSelectionCollapsed(editorState) {
  return editorState.getSelection().isCollapsed();
};

var selectionContainsBlockType = exports.selectionContainsBlockType = function selectionContainsBlockType(editorState, blockType) {
  return getSelectedBlocks(editorState).find(function (block) {
    return block.getType() === blockType;
  });
};

var selectionContainsStrictBlock = exports.selectionContainsStrictBlock = function selectionContainsStrictBlock(editorState) {
  return getSelectedBlocks(editorState).find(function (block) {
    return ~strictBlockTypes.indexOf(block.getType());
  });
};

var selectBlock = exports.selectBlock = function selectBlock(editorState, block) {

  var blockKey = block.getKey();

  return Draft.EditorState.forceSelection(editorState, new Draft.SelectionState({
    anchorKey: blockKey,
    anchorOffset: 0,
    focusKey: blockKey,
    focusOffset: block.getLength()
  }));
};

var selectNextBlock = exports.selectNextBlock = function selectNextBlock(editorState, block) {
  var nextBlock = editorState.getCurrentContent().getBlockAfter(block.getKey());
  return nextBlock ? selectBlock(editorState, nextBlock) : editorState;
};

var removeBlock = exports.removeBlock = function removeBlock(editorState, block) {
  var lastSelection = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;


  var nextContentState = void 0,
      nextEditorState = void 0;
  var blockKey = block.getKey();

  nextContentState = Draft.Modifier.removeRange(editorState.getCurrentContent(), new Draft.SelectionState({
    anchorKey: blockKey,
    anchorOffset: 0,
    focusKey: blockKey,
    focusOffset: block.getLength()
  }), 'backward');

  nextContentState = Draft.Modifier.setBlockType(nextContentState, nextContentState.getSelectionAfter(), 'unstyled');
  nextEditorState = Draft.EditorState.push(editorState, nextContentState, 'remove-range');
  return Draft.EditorState.forceSelection(nextEditorState, lastSelection || nextContentState.getSelectionAfter());
};

var getSelectionBlock = exports.getSelectionBlock = function getSelectionBlock(editorState) {
  return editorState.getCurrentContent().getBlockForKey(editorState.getSelection().getAnchorKey());
};

var updateEachCharacterOfSelection = exports.updateEachCharacterOfSelection = function updateEachCharacterOfSelection(editorState, callback) {

  var selectionState = editorState.getSelection();
  var contentState = editorState.getCurrentContent();
  var contentBlocks = contentState.getBlockMap();
  var selectedBlocks = getSelectedBlocks(editorState);

  if (selectedBlocks.length === 0) {
    return editorState;
  }

  var startKey = selectionState.getStartKey();
  var startOffset = selectionState.getStartOffset();
  var endKey = selectionState.getEndKey();
  var endOffset = selectionState.getEndOffset();

  var nextContentBlocks = contentBlocks.map(function (block) {

    if (selectedBlocks.indexOf(block) === -1) {
      return block;
    }

    var blockKey = block.getKey();
    var charactersList = block.getCharacterList();
    var nextCharactersList = null;

    if (blockKey === startKey && blockKey === endKey) {
      nextCharactersList = charactersList.map(function (character, index) {
        if (index >= startOffset && index < endOffset) {
          return callback(character);
        }
        return character;
      });
    } else if (blockKey === startKey) {
      nextCharactersList = charactersList.map(function (character, index) {
        if (index >= startOffset) {
          return callback(character);
        }
        return character;
      });
    } else if (blockKey === endKey) {
      nextCharactersList = charactersList.map(function (character, index) {
        if (index < endOffset) {
          return callback(character);
        }
        return character;
      });
    } else {
      nextCharactersList = charactersList.map(function (character) {
        return callback(character);
      });
    }

    return block.merge({
      'characterList': nextCharactersList
    });
  });

  return Draft.EditorState.push(editorState, contentState.merge({
    blockMap: nextContentBlocks,
    selectionBefore: selectionState,
    selectionAfter: selectionState
  }), 'update-selection-character-list');
};

var getSelectedBlocks = exports.getSelectedBlocks = function getSelectedBlocks(editorState) {

  var selectionState = editorState.getSelection();
  var contentState = editorState.getCurrentContent();

  var startKey = selectionState.getStartKey();
  var endKey = selectionState.getEndKey();
  var isSameBlock = startKey === endKey;
  var startingBlock = contentState.getBlockForKey(startKey);
  var selectedBlocks = [startingBlock];

  if (!isSameBlock) {
    var blockKey = startKey;

    while (blockKey !== endKey) {
      var nextBlock = contentState.getBlockAfter(blockKey);
      selectedBlocks.push(nextBlock);
      blockKey = nextBlock.getKey();
    }
  }

  return selectedBlocks;
};

var setSelectionBlockData = exports.setSelectionBlockData = function setSelectionBlockData(editorState, blockData, override) {

  var newBlockData = override ? blockData : Object.assign({}, getSelectionBlockData(editorState).toJS(), blockData);

  Object.keys(newBlockData).forEach(function (key) {
    if (newBlockData.hasOwnProperty(key) && newBlockData[key] === undefined) {
      delete newBlockData[key];
    }
  });

  return (0, draftjsUtils$1.setBlockData)(editorState, newBlockData);
};

var getSelectionBlockData = exports.getSelectionBlockData = function getSelectionBlockData(editorState, name) {
  var blockData = getSelectionBlock(editorState).getData();
  return name ? blockData.get(name) : blockData;
};

var getSelectionBlockType = exports.getSelectionBlockType = function getSelectionBlockType(editorState) {
  return getSelectionBlock(editorState).getType();
};

var getSelectionText = exports.getSelectionText = function getSelectionText(editorState) {

  var selectionState = editorState.getSelection();
  var contentState = editorState.getCurrentContent();

  if (selectionState.isCollapsed() || getSelectionBlockType(editorState) === 'atomic') {
    return '';
  }

  var anchorKey = selectionState.getAnchorKey();
  var currentContentBlock = contentState.getBlockForKey(anchorKey);
  var start = selectionState.getStartOffset();
  var end = selectionState.getEndOffset();

  return currentContentBlock.getText().slice(start, end);
};

var toggleSelectionBlockType = exports.toggleSelectionBlockType = function toggleSelectionBlockType(editorState, blockType) {

  if (selectionContainsStrictBlock(editorState)) {
    return editorState;
  }

  return Draft.RichUtils.toggleBlockType(editorState, blockType);
};

var getSelectionEntityType = exports.getSelectionEntityType = function getSelectionEntityType(editorState) {

  var entityKey = (0, draftjsUtils$1.getSelectionEntity)(editorState);

  if (entityKey) {
    var entity = editorState.getCurrentContent().getEntity(entityKey);
    return entity ? entity.get('type') : null;
  }

  return null;
};

var getSelectionEntityData = exports.getSelectionEntityData = function getSelectionEntityData(editorState, type) {

  var entityKey = (0, draftjsUtils$1.getSelectionEntity)(editorState);

  if (entityKey) {
    var entity = editorState.getCurrentContent().getEntity(entityKey);
    if (entity && entity.get('type') === type) {
      return entity.getData();
    } else {
      return {};
    }
  } else {
    return {};
  }
};

var toggleSelectionEntity = exports.toggleSelectionEntity = function toggleSelectionEntity(editorState, entity) {

  var contentState = editorState.getCurrentContent();
  var selectionState = editorState.getSelection();

  if (selectionState.isCollapsed() || getSelectionBlockType(editorState) === 'atomic') {
    return editorState;
  }

  if (!entity || !entity.type || getSelectionEntityType(editorState) === entity.type) {
    return Draft.EditorState.push(editorState, Draft.Modifier.applyEntity(contentState, selectionState, null), 'apply-entity');
  }

  try {

    var nextContentState = contentState.createEntity(entity.type, entity.mutability, entity.data);
    var entityKey = nextContentState.getLastCreatedEntityKey();

    var nextEditorState = Draft.EditorState.set(editorState, {
      currentContent: nextContentState
    });

    return Draft.EditorState.push(nextEditorState, Draft.Modifier.applyEntity(nextContentState, selectionState, entityKey), 'apply-entity');
  } catch (error) {
    console.warn(error);
    return editorState;
  }
};

var toggleSelectionLink = exports.toggleSelectionLink = function toggleSelectionLink(editorState, href, target) {

  var contentState = editorState.getCurrentContent();
  var selectionState = editorState.getSelection();

  var entityData = { href: href, target: target };

  if (selectionState.isCollapsed() || getSelectionBlockType(editorState) === 'atomic') {
    return editorState;
  }

  if (href === false) {
    return Draft.RichUtils.toggleLink(editorState, selectionState, null);
  }

  if (href === null) {
    delete entityData.href;
  }

  try {

    var nextContentState = contentState.createEntity('LINK', 'MUTABLE', entityData);
    var entityKey = nextContentState.getLastCreatedEntityKey();

    var nextEditorState = Draft.EditorState.set(editorState, {
      currentContent: nextContentState
    });

    nextEditorState = Draft.RichUtils.toggleLink(nextEditorState, selectionState, entityKey);
    nextEditorState = Draft.EditorState.forceSelection(nextEditorState, selectionState.merge({
      anchorOffset: selectionState.getEndOffset(),
      focusOffset: selectionState.getEndOffset()
    }));

    nextEditorState = Draft.EditorState.push(nextEditorState, Draft.Modifier.insertText(nextEditorState.getCurrentContent(), nextEditorState.getSelection(), ''), 'insert-text');

    return nextEditorState;
  } catch (error) {
    console.warn(error);
    return editorState;
  }
};

var getSelectionInlineStyle = exports.getSelectionInlineStyle = function getSelectionInlineStyle(editorState) {
  return editorState.getCurrentInlineStyle();
};

var selectionHasInlineStyle = exports.selectionHasInlineStyle = function selectionHasInlineStyle(editorState, style) {
  return getSelectionInlineStyle(editorState).has(style.toUpperCase());
};

var toggleSelectionInlineStyle = exports.toggleSelectionInlineStyle = function toggleSelectionInlineStyle(editorState, style) {
  var prefix = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : '';


  var nextEditorState = editorState;
  style = prefix + style.toUpperCase();

  if (prefix) {

    nextEditorState = updateEachCharacterOfSelection(nextEditorState, function (characterMetadata) {

      return characterMetadata.toJS().style.reduce(function (characterMetadata, characterStyle) {
        if (characterStyle.indexOf(prefix) === 0 && style !== characterStyle) {
          return Draft.CharacterMetadata.removeStyle(characterMetadata, characterStyle);
        } else {
          return characterMetadata;
        }
      }, characterMetadata);
    });
  }

  return Draft.RichUtils.toggleInlineStyle(nextEditorState, style);
};

var removeSelectionInlineStyles = exports.removeSelectionInlineStyles = function removeSelectionInlineStyles(editorState) {

  return updateEachCharacterOfSelection(editorState, function (characterMetadata) {
    return characterMetadata.merge({
      style: _immutable2.default.OrderedSet([])
    });
  });
};

var toggleSelectionAlignment = exports.toggleSelectionAlignment = function toggleSelectionAlignment(editorState, alignment) {
  return setSelectionBlockData(editorState, {
    textAlign: getSelectionBlockData(editorState, 'textAlign') !== alignment ? alignment : undefined
  });
};

var toggleSelectionIndent = exports.toggleSelectionIndent = function toggleSelectionIndent(editorState, textIndent) {
  var maxIndent = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 6;

  return textIndent < 0 || textIndent > maxIndent || isNaN(textIndent) ? editorState : setSelectionBlockData(editorState, {
    textIndent: textIndent || undefined
  });
};

var increaseSelectionIndent = exports.increaseSelectionIndent = function increaseSelectionIndent(editorState) {
  var maxIndent = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 6;

  var currentIndent = getSelectionBlockData(editorState, 'textIndent') || 0;
  return toggleSelectionIndent(editorState, currentIndent + 1, maxIndent);
};

var decreaseSelectionIndent = exports.decreaseSelectionIndent = function decreaseSelectionIndent(editorState) {
  var currentIndent = getSelectionBlockData(editorState, 'textIndent') || 0;
  return toggleSelectionIndent(editorState, currentIndent - 1);
};

var toggleSelectionColor = exports.toggleSelectionColor = function toggleSelectionColor(editorState, color) {
  return toggleSelectionInlineStyle(editorState, color.replace('#', ''), 'COLOR-');
};

var toggleSelectionBackgroundColor = exports.toggleSelectionBackgroundColor = function toggleSelectionBackgroundColor(editorState, color) {
  return toggleSelectionInlineStyle(editorState, color.replace('#', ''), 'BGCOLOR-');
};

var toggleSelectionFontSize = exports.toggleSelectionFontSize = function toggleSelectionFontSize(editorState, fontSize) {
  return toggleSelectionInlineStyle(editorState, fontSize, 'FONTSIZE-');
};

var toggleSelectionLineHeight = exports.toggleSelectionLineHeight = function toggleSelectionLineHeight(editorState, lineHeight) {
  return toggleSelectionInlineStyle(editorState, lineHeight, 'LINEHEIGHT-');
};

var toggleSelectionFontFamily = exports.toggleSelectionFontFamily = function toggleSelectionFontFamily(editorState, fontFamily) {
  return toggleSelectionInlineStyle(editorState, fontFamily, 'FONTFAMILY-');
};

var toggleSelectionLetterSpacing = exports.toggleSelectionLetterSpacing = function toggleSelectionLetterSpacing(editorState, letterSpacing) {
  return toggleSelectionInlineStyle(editorState, letterSpacing, 'LETTERSPACING-');
};

var insertText = exports.insertText = function insertText(editorState, text, inlineStyle, entity) {

  var selectionState = editorState.getSelection();
  var currentSelectedBlockType = getSelectionBlockType(editorState);

  if (currentSelectedBlockType === 'atomic') {
    return editorState;
  }

  var entityKey = void 0;
  var contentState = editorState.getCurrentContent();

  if (entity && entity.type) {
    contentState = contentState.createEntity(entity.type, entity.mutability || 'MUTABLE', entity.data || entityData);
    entityKey = contentState.getLastCreatedEntityKey();
  }

  if (!selectionState.isCollapsed()) {
    return Draft.EditorState.push(editorState, Draft.Modifier.replaceText(contentState, selectionState, text, inlineStyle, entityKey), 'replace-text');
  } else {
    return Draft.EditorState.push(editorState, Draft.Modifier.insertText(contentState, selectionState, text, inlineStyle, entityKey), 'insert-text');
  }
};

var insertHTML = exports.insertHTML = function insertHTML(editorState, htmlString, source) {

  if (!htmlString) {
    return editorState;
  }

  var selectionState = editorState.getSelection();
  var contentState = editorState.getCurrentContent();
  var options = editorState.convertOptions || {};

  try {
    var _convertFromRaw = (0, Draft.convertFromRaw)((0, dist.convertHTMLToRaw)(htmlString, options, source)),
        blockMap = _convertFromRaw.blockMap;

    return Draft.EditorState.push(editorState, Draft.Modifier.replaceWithFragment(contentState, selectionState, blockMap), 'insert-fragment');
  } catch (error) {
    console.warn(error);
    return editorState;
  }
};

var insertAtomicBlock = exports.insertAtomicBlock = function insertAtomicBlock(editorState, type) {
  var immutable = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
  var data = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};


  if (selectionContainsStrictBlock(editorState)) {
    return insertAtomicBlock(selectNextBlock(editorState, getSelectionBlock(editorState)), type, immutable, data);
  }

  var selectionState = editorState.getSelection();
  var contentState = editorState.getCurrentContent();

  if (!selectionState.isCollapsed() || getSelectionBlockType(editorState) === 'atomic') {
    return editorState;
  }

  var contentStateWithEntity = contentState.createEntity(type, immutable ? 'IMMUTABLE' : 'MUTABLE', data);
  var entityKey = contentStateWithEntity.getLastCreatedEntityKey();
  var newEditorState = Draft.AtomicBlockUtils.insertAtomicBlock(editorState, entityKey, ' ');

  return newEditorState;
};

var insertHorizontalLine = exports.insertHorizontalLine = function insertHorizontalLine(editorState) {
  return insertAtomicBlock(editorState, 'HR');
};

var insertMedias = exports.insertMedias = function insertMedias(editorState) {
  var medias = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];


  if (!medias.length) {
    return editorState;
  }

  return medias.reduce(function (editorState, media) {
    var url = media.url,
        link = media.link,
        link_target = media.link_target,
        name = media.name,
        type = media.type,
        width = media.width,
        height = media.height,
        meta = media.meta;

    return insertAtomicBlock(editorState, type, true, { url: url, link: link, link_target: link_target, name: name, type: type, width: width, height: height, meta: meta });
  }, editorState);
};

var setMediaData = exports.setMediaData = function setMediaData(editorState, entityKey, data) {
  return Draft.EditorState.push(editorState, editorState.getCurrentContent().mergeEntityData(entityKey, data), 'change-block-data');
};

var removeMedia = exports.removeMedia = function removeMedia(editorState, mediaBlock) {
  return removeBlock(editorState, mediaBlock);
};

var setMediaPosition = exports.setMediaPosition = function setMediaPosition(editorState, mediaBlock, position) {

  var newPosition = {};
  var float = position.float,
      alignment = position.alignment;


  if (typeof float !== 'undefined') {
    newPosition.float = mediaBlock.getData().get('float') === float ? null : float;
  }

  if (typeof alignment !== 'undefined') {
    newPosition.alignment = mediaBlock.getData().get('alignment') === alignment ? null : alignment;
  }

  return setSelectionBlockData(selectBlock(editorState, mediaBlock), newPosition);
};

var clear = exports.clear = function clear(editorState) {

  var contentState = editorState.getCurrentContent();

  var firstBlock = contentState.getFirstBlock();
  var lastBlock = contentState.getLastBlock();

  var allSelected = new Draft.SelectionState({
    anchorKey: firstBlock.getKey(),
    anchorOffset: 0,
    focusKey: lastBlock.getKey(),
    focusOffset: lastBlock.getLength(),
    hasFocus: true
  });

  return Draft.RichUtils.toggleBlockType(Draft.EditorState.push(editorState, Draft.Modifier.removeRange(contentState, allSelected, 'backward'), 'remove-range'), 'unstyled');
};

var handleKeyCommand = exports.handleKeyCommand = function handleKeyCommand(editorState, command) {
  return Draft.RichUtils.handleKeyCommand(editorState, command);
};

var undo = exports.undo = function undo(editorState) {
  return Draft.EditorState.undo(editorState);
};

var redo = exports.redo = function redo(editorState) {
  return Draft.EditorState.redo(editorState);
};
});

unwrapExports(content$1);
var content_1$1 = content$1.redo;
var content_2$1 = content$1.undo;
var content_3$1 = content$1.handleKeyCommand;
var content_4$1 = content$1.clear;
var content_5$1 = content$1.setMediaPosition;
var content_6$1 = content$1.removeMedia;
var content_7$1 = content$1.setMediaData;
var content_8$1 = content$1.insertMedias;
var content_9$1 = content$1.insertHorizontalLine;
var content_10$1 = content$1.insertAtomicBlock;
var content_11$1 = content$1.insertHTML;
var content_12$1 = content$1.insertText;
var content_13$1 = content$1.toggleSelectionLetterSpacing;
var content_14$1 = content$1.toggleSelectionFontFamily;
var content_15$1 = content$1.toggleSelectionLineHeight;
var content_16$1 = content$1.toggleSelectionFontSize;
var content_17$1 = content$1.toggleSelectionBackgroundColor;
var content_18$1 = content$1.toggleSelectionColor;
var content_19$1 = content$1.decreaseSelectionIndent;
var content_20$1 = content$1.increaseSelectionIndent;
var content_21$1 = content$1.toggleSelectionIndent;
var content_22$1 = content$1.toggleSelectionAlignment;
var content_23$1 = content$1.removeSelectionInlineStyles;
var content_24$1 = content$1.toggleSelectionInlineStyle;
var content_25$1 = content$1.selectionHasInlineStyle;
var content_26$1 = content$1.getSelectionInlineStyle;
var content_27$1 = content$1.toggleSelectionLink;
var content_28$1 = content$1.toggleSelectionEntity;
var content_29$1 = content$1.getSelectionEntityData;
var content_30$1 = content$1.getSelectionEntityType;
var content_31$1 = content$1.toggleSelectionBlockType;
var content_32$1 = content$1.getSelectionText;
var content_33$1 = content$1.getSelectionBlockType;
var content_34$1 = content$1.getSelectionBlockData;
var content_35$1 = content$1.setSelectionBlockData;
var content_36$1 = content$1.getSelectedBlocks;
var content_37$1 = content$1.updateEachCharacterOfSelection;
var content_38$1 = content$1.getSelectionBlock;
var content_39$1 = content$1.removeBlock;
var content_40$1 = content$1.selectNextBlock;
var content_41$1 = content$1.selectBlock;
var content_42$1 = content$1.selectionContainsStrictBlock;
var content_43$1 = content$1.selectionContainsBlockType;
var content_44$1 = content$1.isSelectionCollapsed;
var content_45$1 = content$1.createEditorState;
var content_46$1 = content$1.createEmptyEditorState;
var content_47$1 = content$1.isEditorState;
var content_48$1 = content$1.registerStrictBlockType;

var base$1 = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
var braftUniqueIndex = 0;

var UniqueIndex = exports.UniqueIndex = function UniqueIndex() {
  return braftUniqueIndex += 1;
};
});

unwrapExports(base$1);
var base_1$1 = base$1.UniqueIndex;

var color$1 = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
var _namedColors = {
  "aliceblue": "#f0f8ff",
  "antiquewhite": "#faebd7",
  "aqua": "#00ffff",
  "aquamarine": "#7fffd4",
  "azure": "#f0ffff",
  "beige": "#f5f5dc",
  "bisque": "#ffe4c4",
  "black": "#000000",
  "blanchedalmond": "#ffebcd",
  "blue": "#0000ff",
  "blueviolet": "#8a2be2",
  "brown": "#a52a2a",
  "burlywood": "#deb887",
  "cadetblue": "#5f9ea0",
  "chartreuse": "#7fff00",
  "chocolate": "#d2691e",
  "coral": "#ff7f50",
  "cornflowerblue": "#6495ed",
  "cornsilk": "#fff8dc",
  "crimson": "#dc143c",
  "cyan": "#00ffff",
  "darkblue": "#00008b",
  "darkcyan": "#008b8b",
  "darkgoldenrod": "#b8860b",
  "darkgray": "#a9a9a9",
  "darkgreen": "#006400",
  "darkkhaki": "#bdb76b",
  "darkmagenta": "#8b008b",
  "darkolivegreen": "#556b2f",
  "darkorange": "#ff8c00",
  "darkorchid": "#9932cc",
  "darkred": "#8b0000",
  "darksalmon": "#e9967a",
  "darkseagreen": "#8fbc8f",
  "darkslateblue": "#483d8b",
  "darkslategray": "#2f4f4f",
  "darkturquoise": "#00ced1",
  "darkviolet": "#9400d3",
  "deeppink": "#ff1493",
  "deepskyblue": "#00bfff",
  "dimgray": "#696969",
  "dodgerblue": "#1e90ff",
  "firebrick": "#b22222",
  "floralwhite": "#fffaf0",
  "forestgreen": "#228b22",
  "fuchsia": "#ff00ff",
  "gainsboro": "#dcdcdc",
  "ghostwhite": "#f8f8ff",
  "gold": "#ffd700",
  "goldenrod": "#daa520",
  "gray": "#808080",
  "green": "#008000",
  "greenyellow": "#adff2f",
  "honeydew": "#f0fff0",
  "hotpink": "#ff69b4",
  "indianred ": "#cd5c5c",
  "indigo": "#4b0082",
  "ivory": "#fffff0",
  "khaki": "#f0e68c",
  "lavender": "#e6e6fa",
  "lavenderblush": "#fff0f5",
  "lawngreen": "#7cfc00",
  "lemonchiffon": "#fffacd",
  "lightblue": "#add8e6",
  "lightcoral": "#f08080",
  "lightcyan": "#e0ffff",
  "lightgoldenrodyellow": "#fafad2",
  "lightgrey": "#d3d3d3",
  "lightgreen": "#90ee90",
  "lightpink": "#ffb6c1",
  "lightsalmon": "#ffa07a",
  "lightseagreen": "#20b2aa",
  "lightskyblue": "#87cefa",
  "lightslategray": "#778899",
  "lightsteelblue": "#b0c4de",
  "lightyellow": "#ffffe0",
  "lime": "#00ff00",
  "limegreen": "#32cd32",
  "linen": "#faf0e6",
  "magenta": "#ff00ff",
  "maroon": "#800000",
  "mediumaquamarine": "#66cdaa",
  "mediumblue": "#0000cd",
  "mediumorchid": "#ba55d3",
  "mediumpurple": "#9370d8",
  "mediumseagreen": "#3cb371",
  "mediumslateblue": "#7b68ee",
  "mediumspringgreen": "#00fa9a",
  "mediumturquoise": "#48d1cc",
  "mediumvioletred": "#c71585",
  "midnightblue": "#191970",
  "mintcream": "#f5fffa",
  "mistyrose": "#ffe4e1",
  "moccasin": "#ffe4b5",
  "navajowhite": "#ffdead",
  "navy": "#000080",
  "oldlace": "#fdf5e6",
  "olive": "#808000",
  "olivedrab": "#6b8e23",
  "orange": "#ffa500",
  "orangered": "#ff4500",
  "orchid": "#da70d6",
  "palegoldenrod": "#eee8aa",
  "palegreen": "#98fb98",
  "paleturquoise": "#afeeee",
  "palevioletred": "#d87093",
  "papayawhip": "#ffefd5",
  "peachpuff": "#ffdab9",
  "peru": "#cd853f",
  "pink": "#ffc0cb",
  "plum": "#dda0dd",
  "powderblue": "#b0e0e6",
  "purple": "#800080",
  "rebeccapurple": "#663399",
  "red": "#ff0000",
  "rosybrown": "#bc8f8f",
  "royalblue": "#4169e1",
  "saddlebrown": "#8b4513",
  "salmon": "#fa8072",
  "sandybrown": "#f4a460",
  "seagreen": "#2e8b57",
  "seashell": "#fff5ee",
  "sienna": "#a0522d",
  "silver": "#c0c0c0",
  "skyblue": "#87ceeb",
  "slateblue": "#6a5acd",
  "slategray": "#708090",
  "snow": "#fffafa",
  "springgreen": "#00ff7f",
  "steelblue": "#4682b4",
  "tan": "#d2b48c",
  "teal": "#008080",
  "thistle": "#d8bfd8",
  "tomato": "#ff6347",
  "turquoise": "#40e0d0",
  "violet": "#ee82ee",
  "wheat": "#f5deb3",
  "white": "#ffffff",
  "whitesmoke": "#f5f5f5",
  "yellow": "#ffff00",
  "yellowgreen": "#9acd32"
};

var _getHexColor = function _getHexColor(color) {

  color = color.replace('color:', '').replace(';', '').replace(' ', '');

  if (/^#([0-9a-fA-F]{6}|[0-9a-fA-F]{3})$/.test(color)) {
    return color;
  } else if (namedColors[color]) {
    return namedColors[color];
  } else if (color.indexOf('rgb') === 0) {

    var rgbArray = color.split(',');
    var convertedColor = rgbArray.length < 3 ? null : '#' + [rgbArray[0], rgbArray[1], rgbArray[2]].map(function (x) {
      var hex = parseInt(x.replace(/\D/g, ''), 10).toString(16);
      return hex.length === 1 ? '0' + hex : hex;
    }).join('');

    return (/^#([0-9a-fA-F]{6}|[0-9a-fA-F]{3})$/.test(convertedColor) ? convertedColor : null
    );
  } else {
    return null;
  }
};

var namedColors = exports.namedColors = _namedColors;
var getHexColor = exports.getHexColor = _getHexColor;

var detectColorsFromHTMLString = exports.detectColorsFromHTMLString = function detectColorsFromHTMLString(html) {
  return typeof html !== 'string' ? [] : (html.match(/color:[^;]{3,24};/g) || []).map(getHexColor).filter(function (color) {
    return color;
  });
};

var detectColorsFromDraftState = exports.detectColorsFromDraftState = function detectColorsFromDraftState(draftState) {

  var result = [];

  if (!draftState || !draftState.blocks || !draftState.blocks.length) {
    return result;
  }

  draftState.blocks.forEach(function (block) {
    if (block && block.inlineStyleRanges && block.inlineStyleRanges.length) {
      block.inlineStyleRanges.forEach(function (inlineStyle) {
        if (inlineStyle.style && inlineStyle.style.indexOf('COLOR-') >= 0) {
          result.push('#' + inlineStyle.style.split('COLOR-')[1]);
        }
      });
    }
  });

  return result.filter(function (color) {
    return color;
  });
};
});

unwrapExports(color$1);
var color_1$1 = color$1.namedColors;
var color_2$1 = color$1.getHexColor;
var color_3$1 = color$1.detectColorsFromHTMLString;
var color_4$1 = color$1.detectColorsFromDraftState;

var dist$4 = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ColorUtils = exports.BaseUtils = exports.ContentUtils = undefined;



var _ContentUtils = _interopRequireWildcard(content$1);



var _BaseUtils = _interopRequireWildcard(base$1);



var _ColorUtils = _interopRequireWildcard(color$1);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

var ContentUtils = exports.ContentUtils = _ContentUtils;
var BaseUtils = exports.BaseUtils = _BaseUtils;
var ColorUtils = exports.ColorUtils = _ColorUtils;
});

unwrapExports(dist$4);
var dist_1$2 = dist$4.ColorUtils;
var dist_2$2 = dist$4.BaseUtils;
var dist_3$2 = dist$4.ContentUtils;

var emoticon = createCommonjsModule(function (module, exports) {
(function webpackUniversalModuleDefinition(root, factory) {
	module.exports = factory(React, dist$4);
})(window, function(__WEBPACK_EXTERNAL_MODULE__1__, __WEBPACK_EXTERNAL_MODULE__6__) {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
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/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
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/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__webpack_require__.d = function(exports, name, getter) {
/******/ 		if(!__webpack_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ 		}
/******/ 	};
/******/
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/******/ 	__webpack_require__.r = function(exports) {
/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ 		}
/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
/******/ 	};
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/******/ 	// mode & 1: value is a module id, require it
/******/ 	// mode & 2: merge all properties of value into the ns
/******/ 	// mode & 4: return value when already ns object
/******/ 	// mode & 8|1: behave like require
/******/ 	__webpack_require__.t = function(value, mode) {
/******/ 		if(mode & 1) value = __webpack_require__(value);
/******/ 		if(mode & 8) return value;
/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ 		var ns = Object.create(null);
/******/ 		__webpack_require__.r(ns);
/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ 		return ns;
/******/ 	};
/******/
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/******/ 	__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;
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/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
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/******/ 	__webpack_require__.p = "/";
/******/
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/******/ 	return __webpack_require__(__webpack_require__.s = 33);
/******/ })
/************************************************************************/
/******/ ({

/***/ 1:
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__1__;

/***/ }),

/***/ 2:
/***/ (function(module, exports) {

function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}

module.exports = _defineProperty;

/***/ }),

/***/ 33:
/***/ (function(module, __webpack_exports__, __webpack_require__) {
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "defaultEmoticons", function() { return defaultEmoticons; });
/* harmony import */ var _babel_runtime_helpers_objectSpread__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(5);
/* harmony import */ var _babel_runtime_helpers_objectSpread__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_babel_runtime_helpers_objectSpread__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(1);
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_1__);
/* harmony import */ var braft_utils__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(6);
/* harmony import */ var _styles_scss__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(48);



 // https://www.iconfinder.com/iconsets/emoji-18

var defaultEmoticons = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25].map(function (item) {
  return "".concat(item, ".png");
});

var insertEmoticon = function insertEmoticon(editor, editorState, src) {
  editor.setValue(braft_utils__WEBPACK_IMPORTED_MODULE_2__["ContentUtils"].insertText(editorState, ' ', null, {
    type: 'EMOTICON',
    mutability: 'IMMUTABLE',
    data: {
      src: src
    }
  }));
};

var controlRef = null;

var bindControlRef = function bindControlRef(ref) {
  return controlRef = ref;
};

/* harmony default export */ __webpack_exports__["default"] = (function (options) {
  options = _babel_runtime_helpers_objectSpread__WEBPACK_IMPORTED_MODULE_0___default()({
    emoticons: [],
    closeOnSelect: false,
    closeOnBlur: false
  }, options);
  var _options = options,
      emoticons = _options.emoticons,
      closeOnSelect = _options.closeOnSelect,
      closeOnBlur = _options.closeOnBlur,
      includeEditors = _options.includeEditors,
      excludeEditors = _options.excludeEditors;
  return {
    type: 'entity',
    includeEditors: includeEditors,
    excludeEditors: excludeEditors,
    name: 'EMOTICON',
    control: function control(props) {
      return {
        key: 'EMOTICON',
        replace: 'emoji',
        type: 'dropdown',
        text: react__WEBPACK_IMPORTED_MODULE_1___default.a.createElement("i", {
          className: "bfi-emoji"
        }),
        showArrow: false,
        ref: bindControlRef,
        autoHide: closeOnBlur,
        component: react__WEBPACK_IMPORTED_MODULE_1___default.a.createElement("div", {
          className: "braft-emoticon-picker"
        }, react__WEBPACK_IMPORTED_MODULE_1___default.a.createElement("div", {
          className: "braft-emoticons-list"
        }, emoticons.map(function (item, index) {
          return react__WEBPACK_IMPORTED_MODULE_1___default.a.createElement("img", {
            onClick: function onClick() {
              insertEmoticon(props.editor, props.editorState, item);
              closeOnSelect && controlRef && controlRef.hide();
            },
            key: index,
            src: item
          });
        })))
      };
    },
    mutability: 'IMMUTABLE',
    component: function component(props) {
      var entity = props.contentState.getEntity(props.entityKey);

      var _entity$getData = entity.getData(),
          src = _entity$getData.src;

      return react__WEBPACK_IMPORTED_MODULE_1___default.a.createElement("span", {
        className: "braft-emoticon-in-editor"
      }, react__WEBPACK_IMPORTED_MODULE_1___default.a.createElement("img", {
        src: src
      }), props.children);
    },
    importer: function importer(nodeName, node) {
      if (nodeName.toLowerCase() === 'span' && node.classList && node.classList.contains('braft-emoticon-wrap')) {
        var imgNode = node.querySelector('img');
        var src = imgNode.getAttribute('src'); // 移除img节点以避免生成atomic block

        node.removeChild(imgNode);
        return {
          mutability: 'IMMUTABLE',
          data: {
            src: src
          }
        };
      }
    },
    exporter: function exporter(entityObject, initialText) {
      var src = entityObject.data.src;
      return react__WEBPACK_IMPORTED_MODULE_1___default.a.createElement("span", {
        className: "braft-emoticon-wrap"
      }, react__WEBPACK_IMPORTED_MODULE_1___default.a.createElement("img", {
        src: src
      }), initialText);
    }
  };
});

/***/ }),

/***/ 48:
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),

/***/ 5:
/***/ (function(module, exports, __webpack_require__) {

var defineProperty = __webpack_require__(2);

function _objectSpread(target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i] != null ? arguments[i] : {};
    var ownKeys = Object.keys(source);

    if (typeof Object.getOwnPropertySymbols === 'function') {
      ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
        return Object.getOwnPropertyDescriptor(source, sym).enumerable;
      }));
    }

    ownKeys.forEach(function (key) {
      defineProperty(target, key, source[key]);
    });
  }

  return target;
}

module.exports = _objectSpread;

/***/ }),

/***/ 6:
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE__6__;

/***/ })

/******/ });
});
});

var Emoticon = unwrapExports(emoticon);
var emoticon_1 = emoticon.defaultEmoticons;

var maxLength = createCommonjsModule(function (module, exports) {
(function webpackUniversalModuleDefinition(root, factory) {
	module.exports = factory();
})(window, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__webpack_require__.d = function(exports, name, getter) {
/******/ 		if(!__webpack_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ 		}
/******/ 	};
/******/
/******/ 	// define __esModule on exports
/******/ 	__webpack_require__.r = function(exports) {
/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ 		}
/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
/******/ 	};
/******/
/******/ 	// create a fake namespace object
/******/ 	// mode & 1: value is a module id, require it
/******/ 	// mode & 2: merge all properties of value into the ns
/******/ 	// mode & 4: return value when already ns object
/******/ 	// mode & 8|1: behave like require
/******/ 	__webpack_require__.t = function(value, mode) {
/******/ 		if(mode & 1) value = __webpack_require__(value);
/******/ 		if(mode & 8) return value;
/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ 		var ns = Object.create(null);
/******/ 		__webpack_require__.r(ns);
/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ 		return ns;
/******/ 	};
/******/
/******/ 	// getDefaultExport function for compatibility with non-harmony modules
/******/ 	__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;
/******/ 	};
/******/
/******/ 	// Object.prototype.hasOwnProperty.call
/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "/";
/******/
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(__webpack_require__.s = 34);
/******/ })
/************************************************************************/
/******/ ({

/***/ 2:
/***/ (function(module, exports) {

function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}

module.exports = _defineProperty;

/***/ }),

/***/ 34:
/***/ (function(module, __webpack_exports__, __webpack_require__) {
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _babel_runtime_helpers_objectSpread__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(5);
/* harmony import */ var _babel_runtime_helpers_objectSpread__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_babel_runtime_helpers_objectSpread__WEBPACK_IMPORTED_MODULE_0__);


var getSelectedTextLength = function getSelectedTextLength(editorState) {
  var currentSelection = editorState.getSelection();
  var isCollapsed = currentSelection.isCollapsed();
  var length = 0;

  if (!isCollapsed) {
    var currentContent = editorState.getCurrentContent();
    var startKey = currentSelection.getStartKey();
    var endKey = currentSelection.getEndKey();
    var startBlock = currentContent.getBlockForKey(startKey);
    var isStartAndEndBlockAreTheSame = startKey === endKey;
    var startBlockTextLength = startBlock.getLength();
    var startSelectedTextLength = startBlockTextLength - currentSelection.getStartOffset();
    var endSelectedTextLength = currentSelection.getEndOffset();
    var keyAfterEnd = currentContent.getKeyAfter(endKey);

    if (isStartAndEndBlockAreTheSame) {
      length += currentSelection.getEndOffset() - currentSelection.getStartOffset();
    } else {
      var currentKey = startKey;

      while (currentKey && currentKey !== keyAfterEnd) {
        if (currentKey === startKey) {
          length += startSelectedTextLength + 1;
        } else if (currentKey === endKey) {
          length += endSelectedTextLength;
        } else {
          length += currentContent.getBlockForKey(currentKey).getLength() + 1;
        }

        currentKey = currentContent.getKeyAfter(currentKey);
      }
    }
  }

  return length;
};

/* harmony default export */ __webpack_exports__["default"] = (function (options) {
  options = _babel_runtime_helpers_objectSpread__WEBPACK_IMPORTED_MODULE_0___default()({
    defaultValue: Infinity
  }, options);
  var _options = options,
      includeEditors = _options.includeEditors,
      excludeEditors = _options.excludeEditors,
      defaultValue = _options.defaultValue;
  return {
    type: 'prop-interception',
    includeEditors: includeEditors,
    excludeEditors: excludeEditors,
    interceptor: function interceptor(editorProps) {
      var maxLength = editorProps.maxLength || defaultValue;

      editorProps.handleBeforeInput = function (_, editorState) {
        if (maxLength === Infinity) {
          return 'not-handled';
        }

        var currentContentLength = editorState.toText().length;
        var selectedTextLength = getSelectedTextLength(editorState);

        if (currentContentLength - selectedTextLength > maxLength - 1) {
          editorProps.onReachMaxLength && editorProps.onReachMaxLength(maxLength);
          return 'handled';
        }
      };

      editorProps.handlePastedText = function (pastedText, _, editorState) {
        if (maxLength === Infinity) {
          return 'not-handled';
        }

        var currentContentLength = editorState.toText().length;
        var selectedTextLength = getSelectedTextLength(editorState);

        if (currentContentLength + pastedText.length - selectedTextLength > maxLength) {
          editorProps.onReachMaxLength && editorProps.onReachMaxLength(maxLength);
          return 'handled';
        }
      };

      return editorProps;
    }
  };
});

/***/ }),

/***/ 5:
/***/ (function(module, exports, __webpack_require__) {

var defineProperty = __webpack_require__(2);

function _objectSpread(target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i] != null ? arguments[i] : {};
    var ownKeys = Object.keys(source);

    if (typeof Object.getOwnPropertySymbols === 'function') {
      ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
        return Object.getOwnPropertyDescriptor(source, sym).enumerable;
      }));
    }

    ownKeys.forEach(function (key) {
      defineProperty(target, key, source[key]);
    });
  }

  return target;
}

module.exports = _objectSpread;

/***/ })

/******/ });
});
});

var MaxLength = unwrapExports(maxLength);

var lengthOptions = {
  defaultValue: 100 // 指定默认限制数，如不指定则为Infinity(无限)
  // includeEditors: ['editor-id-1'], // 指定该模块对哪些BraftEditor生效，不传此属性则对所有BraftEditor有效
  // excludeEditors: ['editor-id-2'],  // 指定该模块对哪些BraftEditor无效

};
BraftEditor.use(MaxLength(lengthOptions)); // 转换默认表情包列表，让webpack可以正确加载到默认表情包中的图片，请确保已对png格式的文件配置了loader
// 如果你使用的webpack版本不支持动态require，或者使用的其他打包工具，请勿使用此写法

var emoticons = emoticon_1.map(function (item) {
  return require("braft-extensions/dist/assets/".concat(item));
}); // 也可以使用自己的表情包资源，不受打包工具限制
// const emoticons = ['http://path/to/emoticon-1.png', 'http://path/to/emoticon-2.png', 'http://path/to/emoticon-3.png', 'http://path/to/emoticon-4.png', ...]

var emotionOptions = {
  // includeEditors: ['editor-id-1'], // 指定该模块对哪些BraftEditor生效，不传此属性则对所有BraftEditor有效
  // excludeEditors: ['editor-id-2'],  // 指定该模块对哪些BraftEditor无效
  emoticons: emoticons,
  // 指定可用表情图片列表，默认为空
  closeOnBlur: true,
  // 指定是否在点击表情选择器之外的地方时关闭表情选择器，默认false
  closeOnSelect: false // 指定是否在选择表情后关闭表情选择器，默认false

};
BraftEditor.use(Emoticon(emotionOptions));
var BarftEditorPage = function BarftEditorPage() {
  var controls = ["bold", "italic", "underline", "separator", "link", "emoji", "separator", "media"];

  var _useState = useState(BraftEditor.createEditorState("<p>Hello <b>World!</b></p>")),
      _useState2 = _slicedToArray(_useState, 2),
      editorState = _useState2[0],
      setEditorState = _useState2[1];

  return React.createElement("div", {
    className: "editor-wrapper"
  }, React.createElement(BraftEditor, {
    value: editorState,
    onChange: setEditorState,
    controls: controls,
    contentStyle: {
      height: 210,
      boxShadow: "inset 0 1px 3px rgba(0,0,0,.1)"
    }
  }));
};

var css$2 = ".RichTextEditor_wrapper__A033L .RichTextEditor_btnListWrapper__3iF9d {\n  display: flex;\n}\n.RichTextEditor_wrapper__A033L .RichTextEditor_editorWrapper__PzQ_1 {\n  border: 1px solid #ccc;\n}\n";
var styles = {"wrapper":"RichTextEditor_wrapper__A033L","btnListWrapper":"RichTextEditor_btnListWrapper__3iF9d","editorWrapper":"RichTextEditor_editorWrapper__PzQ_1"};
styleInject(css$2);

// 自定义组件，用于超链接
var Link = function Link(props) {
  // 这里通过contentState来获取entity�，之后通过getData获取entity中包含的数据
  var _props$contentState$g = props.contentState.getEntity(props.entityKey).getData(),
      url = _props$contentState$g.url;

  return React.createElement("a", {
    href: url
  }, props.children);
}; // decorator，用于超链接


var decorator = new Draft_4([{
  strategy: function strategy(contentBlock, callback, contentState) {
    // 这个方法接收2个函数作为参数，如果第一个参数的函数执行时�返回true，就会执行第二个参数函数，同时会�将匹配的�字符的起始位置和结束位置传递给第二个参数。
    contentBlock.findEntityRanges(function (character) {
      var entityKey = character.getEntity();
      return entityKey !== null && contentState.getEntity(entityKey).getType() === 'LINK';
    }, function () {
      callback.apply(void 0, arguments);
    });
  },
  component: Link
}, {
  strategy: function strategy(contentBlock, callback, contentState) {
    contentBlock.findEntityRanges(function (character) {
      var entityKey = character.getEntity();
      return entityKey !== null && contentState.getEntity(entityKey).getType() === 'EMOJI';
    }, function () {
      callback.apply(void 0, arguments);
    });
  },
  // component: (props: any) => (<span style={{ color: 'red' }}>[Emoji]</span>)
  component: function component(props) {
    return React.createElement("i", {
      style: {
        display: 'inline-block',
        height: '18px',
        width: '18px',
        backgroundImage: "url(https://i.pinimg.com/originals/03/7e/79/037e79b2fb52127537be79110891ae3f.png)",
        backgroundSize: '100% 100%',
        color: 'transparent'
      }
    }, "e");
  }
}]);

var RichTextEditor =
/*#__PURE__*/
function (_React$Component) {
  _inherits$c(RichTextEditor, _React$Component);

  function RichTextEditor(props) {
    var _this;

    _classCallCheck$h(this, RichTextEditor);

    _this = _possibleConstructorReturn$c(this, _getPrototypeOf(RichTextEditor).call(this, props));

    _defineProperty$1(_assertThisInitialized(_this), "onChange", void 0);

    _this.state = {
      editorState: Draft_3.createEmpty(decorator)
    };

    _this.onChange = function (editorState) {
      return _this.setState({
        editorState: editorState
      });
    };

    _this.handleKeyCommand = _this.handleKeyCommand.bind(_assertThisInitialized(_this));
    _this.defaultBlockStyleFn = _this.defaultBlockStyleFn.bind(_assertThisInitialized(_this));
    return _this;
  }

  _createClass(RichTextEditor, [{
    key: "handleKeyCommand",
    value: function handleKeyCommand(command, editorState) {
      var newState = Draft_15.handleKeyCommand(editorState, command);
      console.log('command: ', command);
      console.log('newState: ', newState);

      if (newState) {
        this.onChange(newState);
        return "handled";
      }

      switch (command) {
        case 'backspace':
          var contentState = editorState.getCurrentContent();
          var selectionState = editorState.getSelection();
          var _ref = [selectionState.getStartOffset(), selectionState.getEndOffset()],
              startOffset = _ref[0],
              endOffset = _ref[1];

          if (startOffset === endOffset) {
            // 未选中状态
            console.log(selectionState.getAnchorKey());
          } // 选中状态


          break;
      }

      return "not-handled";
    }
  }, {
    key: "_onBoldClick",
    value: function _onBoldClick() {
      this.onChange(Draft_15.toggleInlineStyle(this.state.editorState, 'BOLD'));
    }
  }, {
    key: "_onLinkClick",
    value: function _onLinkClick() {
      var editorState = this.state.editorState;
      var contentState = editorState.getCurrentContent();
      var selectionState = editorState.getSelection();
      var contentStateWithEntity = contentState.createEntity('LINK', 'MUTABLE', {
        url: 'http://www.zombo.com'
      });
      var entityKey = contentStateWithEntity.getLastCreatedEntityKey();
      var contentStateWithLink = Draft_14.applyEntity(contentStateWithEntity, selectionState, entityKey);
      var newEditorState = Draft_3.push(editorState, contentStateWithLink, 'apply-entity');
      this.onChange(newEditorState);
    }
  }, {
    key: "_onEmojiClick",
    value: function _onEmojiClick(e, emojiCode) {
      var editorState = this.state.editorState;
      var contentState = editorState.getCurrentContent();
      var selectionState = editorState.getSelection();
      var EMOJIEntity = contentState.createEntity('EMOJI', 'IMMUTABLE', {
        emojiCode: emojiCode
      });
      var entityKey = EMOJIEntity.getLastCreatedEntityKey();
      var ncsWithEntity = Draft_14.insertText(contentState, selectionState, 'e', undefined, entityKey);
      var newEditorState = Draft_3.push(editorState, ncsWithEntity, 'insert-characters'); // const newEditorState = AtomicBlockUtils.insertAtomicBlock(
      //   editorState,
      //   entityKey,
      //   ' '
      // );

      this.onChange(newEditorState);
    }
  }, {
    key: "_onCheckRange",
    value: function _onCheckRange() {
      console.log(this.state.editorState.getCurrentContent());
      console.log(Draft_20(this.state.editorState.getCurrentContent()));
    }
  }, {
    key: "defaultBlockStyleFn",
    value: function defaultBlockStyleFn(contentBlock) {
      var type = contentBlock.getType();
      return "";
    }
  }, {
    key: "defaultBlockRenderFn",
    value: function defaultBlockRenderFn(contentBlock) {
      var type = contentBlock.getType();
      return contentBlock;
    }
  }, {
    key: "render",
    value: function render() {
      var _this2 = this;

      var editorState = this.state.editorState;
      return React.createElement("div", {
        className: styles.wrapper
      }, React.createElement("div", {
        className: styles.btnListWrapper
      }, React.createElement("button", {
        onClick: this._onBoldClick.bind(this)
      }, "Bold"), React.createElement("button", {
        onClick: this._onCheckRange.bind(this)
      }, "Check"), React.createElement("button", {
        onClick: this._onLinkClick.bind(this)
      }, "Link"), React.createElement("button", {
        onClick: function onClick(e) {
          return _this2._onEmojiClick(e, '0011');
        }
      }, "Emoji")), React.createElement("div", {
        className: styles.editorWrapper
      }, React.createElement(Draft_1, {
        editorState: editorState,
        blockStyleFn: this.defaultBlockStyleFn,
        blockRendererFn: this.defaultBlockRenderFn,
        handleKeyCommand: this.handleKeyCommand,
        onChange: this.onChange
      })));
    }
  }]);

  return RichTextEditor;
}(React.Component);

/*!
 * isobject <https://github.com/jonschlinkert/isobject>
 *
 * Copyright (c) 2014-2017, Jon Schlinkert.
 * Released under the MIT License.
 */

function isObject(val) {
  return val != null && typeof val === 'object' && Array.isArray(val) === false;
}

/*!
 * is-plain-object <https://github.com/jonschlinkert/is-plain-object>
 *
 * Copyright (c) 2014-2017, Jon Schlinkert.
 * Released under the MIT License.
 */

function isObjectObject(o) {
  return isObject(o) === true
    && Object.prototype.toString.call(o) === '[object Object]';
}

function isPlainObject(o) {
  var ctor,prot;

  if (isObjectObject(o) === false) return false;

  // If has modified constructor
  ctor = o.constructor;
  if (typeof ctor !== 'function') return false;

  // If has modified prototype
  prot = ctor.prototype;
  if (isObjectObject(prot) === false) return false;

  // If constructor does not have an Object-specific method
  if (prot.hasOwnProperty('isPrototypeOf') === false) {
    return false;
  }

  // Most likely a plain Object
  return true;
}

var index_cjs = isPlainObject;

var immer_1 = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, '__esModule', { value: true });

// Should be no imports here!
var _a; // SOme things that should be evaluated before all else...


var hasSymbol = typeof Symbol !== "undefined";
var hasMap = typeof Map !== "undefined";
var hasSet = typeof Set !== "undefined";
/**
 * The sentinel value returned by producers to replace the draft with undefined.
 */

var NOTHING = hasSymbol ? Symbol("immer-nothing") : (_a = {}, _a["immer-nothing"] = true, _a);
/**
 * To let Immer treat your class instances as plain immutable objects
 * (albeit with a custom prototype), you must define either an instance property
 * or a static property on each of your custom classes.
 *
 * Otherwise, your class instance will never be drafted, which means it won't be
 * safe to mutate in a produce callback.
 */

var DRAFTABLE = hasSymbol ? Symbol("immer-draftable") : "__$immer_draftable";
var DRAFT_STATE = hasSymbol ? Symbol("immer-state") : "__$immer_state";
var iteratorSymbol = hasSymbol ? Symbol.iterator : "@@iterator";

/* istanbul ignore next */
var extendStatics = function (d, b) {
  extendStatics = Object.setPrototypeOf || {
    __proto__: []
  } instanceof Array && function (d, b) {
    d.__proto__ = b;
  } || function (d, b) {
    for (var p in b) { if (b.hasOwnProperty(p)) { d[p] = b[p]; } }
  };

  return extendStatics(d, b);
}; // Ugly hack to resolve #502 and inherit built in Map / Set


function __extends(d, b) {
  extendStatics(d, b);

  function __() {
    this.constructor = d;
  }

  d.prototype = ( // @ts-ignore
  __.prototype = b.prototype, new __());
}

var Archtype;

(function (Archtype) {
  Archtype[Archtype["Object"] = 0] = "Object";
  Archtype[Archtype["Array"] = 1] = "Array";
  Archtype[Archtype["Map"] = 2] = "Map";
  Archtype[Archtype["Set"] = 3] = "Set";
})(Archtype || (Archtype = {}));

var ProxyType;

(function (ProxyType) {
  ProxyType[ProxyType["ProxyObject"] = 0] = "ProxyObject";
  ProxyType[ProxyType["ProxyArray"] = 1] = "ProxyArray";
  ProxyType[ProxyType["ES5Object"] = 2] = "ES5Object";
  ProxyType[ProxyType["ES5Array"] = 3] = "ES5Array";
  ProxyType[ProxyType["Map"] = 4] = "Map";
  ProxyType[ProxyType["Set"] = 5] = "Set";
})(ProxyType || (ProxyType = {}));

/** Returns true if the given value is an Immer draft */

function isDraft(value) {
  return !!value && !!value[DRAFT_STATE];
}
/** Returns true if the given value can be drafted by Immer */

function isDraftable(value) {
  if (!value) { return false; }
  return isPlainObject(value) || Array.isArray(value) || !!value[DRAFTABLE] || !!value.constructor[DRAFTABLE] || isMap(value) || isSet(value);
}
function isPlainObject(value) {
  if (!value || typeof value !== "object") { return false; }
  var proto = Object.getPrototypeOf(value);
  return !proto || proto === Object.prototype;
}
function original(value) {
  if (value && value[DRAFT_STATE]) {
    return value[DRAFT_STATE].base;
  } // otherwise return undefined

}
var ownKeys = typeof Reflect !== "undefined" && Reflect.ownKeys ? Reflect.ownKeys : typeof Object.getOwnPropertySymbols !== "undefined" ? function (obj) {
  return Object.getOwnPropertyNames(obj).concat(Object.getOwnPropertySymbols(obj));
} :
/* istanbul ignore next */
Object.getOwnPropertyNames;
function each(obj, iter) {
  if (getArchtype(obj) === Archtype.Object) {
    ownKeys(obj).forEach(function (key) {
      return iter(key, obj[key], obj);
    });
  } else {
    obj.forEach(function (entry, index) {
      return iter(index, entry, obj);
    });
  }
}
function isEnumerable(base, prop) {
  var desc = Object.getOwnPropertyDescriptor(base, prop);
  return desc && desc.enumerable ? true : false;
}
function getArchtype(thing) {
  /* istanbul ignore next */
  if (!thing) { die(); }

  if (thing[DRAFT_STATE]) {
    switch (thing[DRAFT_STATE].type) {
      case ProxyType.ES5Object:
      case ProxyType.ProxyObject:
        return Archtype.Object;

      case ProxyType.ES5Array:
      case ProxyType.ProxyArray:
        return Archtype.Array;

      case ProxyType.Map:
        return Archtype.Map;

      case ProxyType.Set:
        return Archtype.Set;
    }
  }

  return Array.isArray(thing) ? Archtype.Array : isMap(thing) ? Archtype.Map : isSet(thing) ? Archtype.Set : Archtype.Object;
}
function has(thing, prop) {
  return getArchtype(thing) === Archtype.Map ? thing.has(prop) : Object.prototype.hasOwnProperty.call(thing, prop);
}
function get(thing, prop) {
  // @ts-ignore
  return getArchtype(thing) === Archtype.Map ? thing.get(prop) : thing[prop];
}
function set(thing, propOrOldValue, value) {
  switch (getArchtype(thing)) {
    case Archtype.Map:
      thing.set(propOrOldValue, value);
      break;

    case Archtype.Set:
      thing.delete(propOrOldValue);
      thing.add(value);
      break;

    default:
      thing[propOrOldValue] = value;
  }
}
function is(x, y) {
  // From: https://github.com/facebook/fbjs/blob/c69904a511b900266935168223063dd8772dfc40/packages/fbjs/src/core/shallowEqual.js
  if (x === y) {
    return x !== 0 || 1 / x === 1 / y;
  } else {
    return x !== x && y !== y;
  }
}
function isMap(target) {
  return hasMap && target instanceof Map;
}
function isSet(target) {
  return hasSet && target instanceof Set;
}
function latest(state) {
  return state.copy || state.base;
}
function shallowCopy(base, invokeGetters) {
  if (invokeGetters === void 0) {
    invokeGetters = false;
  }

  if (Array.isArray(base)) { return base.slice(); }
  var clone = Object.create(Object.getPrototypeOf(base));
  ownKeys(base).forEach(function (key) {
    if (key === DRAFT_STATE) {
      return; // Never copy over draft state.
    }

    var desc = Object.getOwnPropertyDescriptor(base, key);
    var value = desc.value;

    if (desc.get) {
      if (!invokeGetters) {
        throw new Error("Immer drafts cannot have computed properties");
      }

      value = desc.get.call(base);
    }

    if (desc.enumerable) {
      clone[key] = value;
    } else {
      Object.defineProperty(clone, key, {
        value: value,
        writable: true,
        configurable: true
      });
    }
  });
  return clone;
}
function freeze(obj, deep) {
  if (!isDraftable(obj) || isDraft(obj) || Object.isFrozen(obj)) { return; }
  var type = getArchtype(obj);

  if (type === Archtype.Set) {
    obj.add = obj.clear = obj.delete = dontMutateFrozenCollections;
  } else if (type === Archtype.Map) {
    obj.set = obj.clear = obj.delete = dontMutateFrozenCollections;
  }

  Object.freeze(obj);
  if (deep) { each(obj, function (_, value) {
    return freeze(value, true);
  }); }
}

function dontMutateFrozenCollections() {
  throw new Error("This object has been frozen and should not be mutated");
}

function createHiddenProperty(target, prop, value) {
  Object.defineProperty(target, prop, {
    value: value,
    enumerable: false,
    writable: true
  });
}
/* istanbul ignore next */

function die() {
  throw new Error("Illegal state, please file a bug");
}

/** Each scope represents a `produce` call. */

var ImmerScope =
/** @class */
function () {
  function ImmerScope(parent, immer) {
    this.drafts = [];
    this.parent = parent;
    this.immer = immer; // Whenever the modified draft contains a draft from another scope, we
    // need to prevent auto-freezing so the unowned draft can be finalized.

    this.canAutoFreeze = true;
  }

  ImmerScope.prototype.usePatches = function (patchListener) {
    if (patchListener) {
      this.patches = [];
      this.inversePatches = [];
      this.patchListener = patchListener;
    }
  };

  ImmerScope.prototype.revoke = function () {
    this.leave();
    this.drafts.forEach(revoke); // @ts-ignore

    this.drafts = null;
  };

  ImmerScope.prototype.leave = function () {
    if (this === ImmerScope.current) {
      ImmerScope.current = this.parent;
    }
  };

  ImmerScope.enter = function (immer) {
    var scope = new ImmerScope(ImmerScope.current, immer);
    ImmerScope.current = scope;
    return scope;
  };

  return ImmerScope;
}();

function revoke(draft) {
  var state = draft[DRAFT_STATE];
  if (state.type === ProxyType.ProxyObject || state.type === ProxyType.ProxyArray) { state.revoke(); }else { state.revoked = true; }
}

function processResult(immer, result, scope) {
  var baseDraft = scope.drafts[0];
  var isReplaced = result !== undefined && result !== baseDraft;
  immer.willFinalize(scope, result, isReplaced);

  if (isReplaced) {
    if (baseDraft[DRAFT_STATE].modified) {
      scope.revoke();
      throw new Error("An immer producer returned a new value *and* modified its draft. Either return a new value *or* modify the draft."); // prettier-ignore
    }

    if (isDraftable(result)) {
      // Finalize the result in case it contains (or is) a subset of the draft.
      result = finalize(immer, result, scope);
      maybeFreeze(immer, result);
    }

    if (scope.patches) {
      scope.patches.push({
        op: "replace",
        path: [],
        value: result
      });
      scope.inversePatches.push({
        op: "replace",
        path: [],
        value: baseDraft[DRAFT_STATE].base
      });
    }
  } else {
    // Finalize the base draft.
    result = finalize(immer, baseDraft, scope, []);
  }

  scope.revoke();

  if (scope.patches) {
    scope.patchListener(scope.patches, scope.inversePatches);
  }

  return result !== NOTHING ? result : undefined;
}

function finalize(immer, draft, scope, path) {
  var state = draft[DRAFT_STATE];

  if (!state) {
    if (Object.isFrozen(draft)) { return draft; }
    return finalizeTree(immer, draft, scope);
  } // Never finalize drafts owned by another scope.


  if (state.scope !== scope) {
    return draft;
  }

  if (!state.modified) {
    maybeFreeze(immer, state.base, true);
    return state.base;
  }

  if (!state.finalized) {
    state.finalized = true;
    finalizeTree(immer, state.draft, scope, path); // We cannot really delete anything inside of a Set. We can only replace the whole Set.

    if (immer.onDelete && state.type !== ProxyType.Set) {
      // The `assigned` object is unreliable with ES5 drafts.
      if (immer.useProxies) {
        var assigned = state.assigned;
        each(assigned, function (prop, exists) {
          if (!exists) { immer.onDelete(state, prop); }
        });
      } else {
        var base = state.base,
            copy_1 = state.copy;
        each(base, function (prop) {
          if (!has(copy_1, prop)) { immer.onDelete(state, prop); }
        });
      }
    }

    if (immer.onCopy) {
      immer.onCopy(state);
    } // At this point, all descendants of `state.copy` have been finalized,
    // so we can be sure that `scope.canAutoFreeze` is accurate.


    if (immer.autoFreeze && scope.canAutoFreeze) {
      freeze(state.copy, false);
    }

    if (path && scope.patches) {
      generatePatches(state, path, scope.patches, scope.inversePatches);
    }
  }

  return state.copy;
}

function finalizeTree(immer, root, scope, rootPath) {
  var state = root[DRAFT_STATE];

  if (state) {
    if (state.type === ProxyType.ES5Object || state.type === ProxyType.ES5Array) {
      // Create the final copy, with added keys and without deleted keys.
      state.copy = shallowCopy(state.draft, true);
    }

    root = state.copy;
  }

  each(root, function (key, value) {
    return finalizeProperty(immer, scope, root, state, root, key, value, rootPath);
  });
  return root;
}

function finalizeProperty(immer, scope, root, rootState, parentValue, prop, childValue, rootPath) {
  if (childValue === parentValue) {
    throw Error("Immer forbids circular references");
  } // In the `finalizeTree` method, only the `root` object may be a draft.


  var isDraftProp = !!rootState && parentValue === root;
  var isSetMember = isSet(parentValue);

  if (isDraft(childValue)) {
    var path = rootPath && isDraftProp && !isSetMember && // Set objects are atomic since they have no keys.
    !has(rootState.assigned, prop) // Skip deep patches for assigned keys.
    ? rootPath.concat(prop) : undefined; // Drafts owned by `scope` are finalized here.

    childValue = finalize(immer, childValue, scope, path);
    set(parentValue, prop, childValue); // Drafts from another scope must prevent auto-freezing.

    if (isDraft(childValue)) {
      scope.canAutoFreeze = false;
    }
  } // Unchanged draft properties are ignored.
  else if (isDraftProp && is(childValue, get(rootState.base, prop))) {
      return;
    } // Search new objects for unfinalized drafts. Frozen objects should never contain drafts.
    // TODO: the recursion over here looks weird, shouldn't non-draft stuff have it's own recursion?
    // especially the passing on of root and rootState doesn't make sense...
    else if (isDraftable(childValue) && !Object.isFrozen(childValue)) {
        each(childValue, function (key, grandChild) {
          return finalizeProperty(immer, scope, root, rootState, childValue, key, grandChild, rootPath);
        });
        maybeFreeze(immer, childValue);
      }

  if (isDraftProp && immer.onAssign && !isSetMember) {
    immer.onAssign(rootState, prop, childValue);
  }
}

function maybeFreeze(immer, value, deep) {
  if (deep === void 0) {
    deep = false;
  }

  if (immer.autoFreeze && !isDraft(value)) {
    freeze(value, deep);
  }
}

/**
 * Returns a new draft of the `base` object.
 *
 * The second argument is the parent draft-state (used internally).
 */

function createProxy(base, parent) {
  var isArray = Array.isArray(base);
  var state = {
    type: isArray ? ProxyType.ProxyArray : ProxyType.ProxyObject,
    // Track which produce call this is associated with.
    scope: parent ? parent.scope : ImmerScope.current,
    // True for both shallow and deep changes.
    modified: false,
    // Used during finalization.
    finalized: false,
    // Track which properties have been assigned (true) or deleted (false).
    assigned: {},
    // The parent draft state.
    parent: parent,
    // The base state.
    base: base,
    // The base proxy.
    draft: null,
    // Any property proxies.
    drafts: {},
    // The base copy with any updated values.
    copy: null,
    // Called by the `produce` function.
    revoke: null,
    isManual: false
  }; // the traps must target something, a bit like the 'real' base.
  // but also, we need to be able to determine from the target what the relevant state is
  // (to avoid creating traps per instance to capture the state in closure,
  // and to avoid creating weird hidden properties as well)
  // So the trick is to use 'state' as the actual 'target'! (and make sure we intercept everything)
  // Note that in the case of an array, we put the state in an array to have better Reflect defaults ootb

  var target = state;
  var traps = objectTraps;

  if (isArray) {
    target = [state];
    traps = arrayTraps;
  } // TODO: optimization: might be faster, cheaper if we created a non-revocable proxy
  // and administrate revoking ourselves


  var _a = Proxy.revocable(target, traps),
      revoke = _a.revoke,
      proxy = _a.proxy;

  state.draft = proxy;
  state.revoke = revoke;
  return proxy;
}
/**
 * Object drafts
 */

var objectTraps = {
  get: function (state, prop) {
    if (prop === DRAFT_STATE) { return state; }
    var drafts = state.drafts; // Check for existing draft in unmodified state.

    if (!state.modified && has(drafts, prop)) {
      return drafts[prop];
    }

    var value = latest(state)[prop];

    if (state.finalized || !isDraftable(value)) {
      return value;
    } // Check for existing draft in modified state.


    if (state.modified) {
      // Assigned values are never drafted. This catches any drafts we created, too.
      if (value !== peek(state.base, prop)) { return value; } // Store drafts on the copy (when one exists).
      // @ts-ignore

      drafts = state.copy;
    }

    return drafts[prop] = state.scope.immer.createProxy(value, state);
  },
  has: function (state, prop) {
    return prop in latest(state);
  },
  ownKeys: function (state) {
    return Reflect.ownKeys(latest(state));
  },
  set: function (state, prop
  /* strictly not, but helps TS */
  , value) {
    if (!state.modified) {
      var baseValue = peek(state.base, prop); // Optimize based on value's truthiness. Truthy values are guaranteed to
      // never be undefined, so we can avoid the `in` operator. Lastly, truthy
      // values may be drafts, but falsy values are never drafts.

      var isUnchanged = value ? is(baseValue, value) || value === state.drafts[prop] : is(baseValue, value) && prop in state.base;
      if (isUnchanged) { return true; }
      prepareCopy(state);
      markChanged(state);
    }

    state.assigned[prop] = true; // @ts-ignore

    state.copy[prop] = value;
    return true;
  },
  deleteProperty: function (state, prop) {
    // The `undefined` check is a fast path for pre-existing keys.
    if (peek(state.base, prop) !== undefined || prop in state.base) {
      state.assigned[prop] = false;
      prepareCopy(state);
      markChanged(state);
    } else if (state.assigned[prop]) {
      // if an originally not assigned property was deleted
      delete state.assigned[prop];
    } // @ts-ignore


    if (state.copy) { delete state.copy[prop]; }
    return true;
  },
  // Note: We never coerce `desc.value` into an Immer draft, because we can't make
  // the same guarantee in ES5 mode.
  getOwnPropertyDescriptor: function (state, prop) {
    var owner = latest(state);
    var desc = Reflect.getOwnPropertyDescriptor(owner, prop);

    if (desc) {
      desc.writable = true;
      desc.configurable = state.type !== ProxyType.ProxyArray || prop !== "length";
    }

    return desc;
  },
  defineProperty: function () {
    throw new Error("Object.defineProperty() cannot be used on an Immer draft"); // prettier-ignore
  },
  getPrototypeOf: function (state) {
    return Object.getPrototypeOf(state.base);
  },
  setPrototypeOf: function () {
    throw new Error("Object.setPrototypeOf() cannot be used on an Immer draft"); // prettier-ignore
  }
};
/**
 * Array drafts
 */

var arrayTraps = {};
each(objectTraps, function (key, fn) {
  // @ts-ignore
  arrayTraps[key] = function () {
    arguments[0] = arguments[0][0];
    return fn.apply(this, arguments);
  };
});

arrayTraps.deleteProperty = function (state, prop) {
  if (isNaN(parseInt(prop))) {
    throw new Error("Immer only supports deleting array indices"); // prettier-ignore
  }

  return objectTraps.deleteProperty.call(this, state[0], prop);
};

arrayTraps.set = function (state, prop, value) {
  if (prop !== "length" && isNaN(parseInt(prop))) {
    throw new Error("Immer only supports setting array indices and the 'length' property"); // prettier-ignore
  }

  return objectTraps.set.call(this, state[0], prop, value, state[0]);
};
/**
 * Map drafts
 */
// Access a property without creating an Immer draft.


function peek(draft, prop) {
  var state = draft[DRAFT_STATE];
  var desc = Reflect.getOwnPropertyDescriptor(state ? latest(state) : draft, prop);
  return desc && desc.value;
}

function markChanged(state) {
  if (!state.modified) {
    state.modified = true;

    if (state.type === ProxyType.ProxyObject || state.type === ProxyType.ProxyArray) {
      var copy_1 = state.copy = shallowCopy(state.base);
      each(state.drafts, function (key, value) {
        // @ts-ignore
        copy_1[key] = value;
      });
      state.drafts = undefined;
    }

    if (state.parent) {
      markChanged(state.parent);
    }
  }
}

function prepareCopy(state) {
  if (!state.copy) {
    state.copy = shallowCopy(state.base);
  }
}

function willFinalizeES5(scope, result, isReplaced) {
  scope.drafts.forEach(function (draft) {
    draft[DRAFT_STATE].finalizing = true;
  });

  if (!isReplaced) {
    if (scope.patches) {
      markChangesRecursively(scope.drafts[0]);
    } // This is faster when we don't care about which attributes changed.


    markChangesSweep(scope.drafts);
  } // When a child draft is returned, look for changes.
  else if (isDraft(result) && result[DRAFT_STATE].scope === scope) {
      markChangesSweep(scope.drafts);
    }
}
function createES5Proxy(base, parent) {
  var isArray = Array.isArray(base);
  var draft = clonePotentialDraft(base);
  each(draft, function (prop) {
    proxyProperty(draft, prop, isArray || isEnumerable(base, prop));
  });
  var state = {
    type: isArray ? ProxyType.ES5Array : ProxyType.ES5Object,
    scope: parent ? parent.scope : ImmerScope.current,
    modified: false,
    finalizing: false,
    finalized: false,
    assigned: {},
    parent: parent,
    base: base,
    draft: draft,
    copy: null,
    revoked: false,
    isManual: false
  };
  createHiddenProperty(draft, DRAFT_STATE, state);
  return draft;
} // Access a property without creating an Immer draft.

function peek$1(draft, prop) {
  var state = draft[DRAFT_STATE];

  if (state && !state.finalizing) {
    state.finalizing = true;
    var value = draft[prop];
    state.finalizing = false;
    return value;
  }

  return draft[prop];
}

function get$1(state, prop) {
  assertUnrevoked(state);
  var value = peek$1(latest(state), prop);
  if (state.finalizing) { return value; } // Create a draft if the value is unmodified.

  if (value === peek$1(state.base, prop) && isDraftable(value)) {
    prepareCopy$1(state); // @ts-ignore

    return state.copy[prop] = state.scope.immer.createProxy(value, state);
  }

  return value;
}

function set$1(state, prop, value) {
  assertUnrevoked(state);
  state.assigned[prop] = true;

  if (!state.modified) {
    if (is(value, peek$1(latest(state), prop))) { return; }
    markChangedES5(state);
    prepareCopy$1(state);
  } // @ts-ignore


  state.copy[prop] = value;
}

function markChangedES5(state) {
  if (!state.modified) {
    state.modified = true;
    if (state.parent) { markChangedES5(state.parent); }
  }
}

function prepareCopy$1(state) {
  if (!state.copy) { state.copy = clonePotentialDraft(state.base); }
}

function clonePotentialDraft(base) {
  var state = base && base[DRAFT_STATE];

  if (state) {
    state.finalizing = true;
    var draft = shallowCopy(state.draft, true);
    state.finalizing = false;
    return draft;
  }

  return shallowCopy(base);
} // property descriptors are recycled to make sure we don't create a get and set closure per property,
// but share them all instead


var descriptors = {};

function proxyProperty(draft, prop, enumerable) {
  var desc = descriptors[prop];

  if (desc) {
    desc.enumerable = enumerable;
  } else {
    descriptors[prop] = desc = {
      configurable: true,
      enumerable: enumerable,
      get: function () {
        return get$1(this[DRAFT_STATE], prop);
      },
      set: function (value) {
        set$1(this[DRAFT_STATE], prop, value);
      }
    };
  }

  Object.defineProperty(draft, prop, desc);
}

function assertUnrevoked(state) {
  if (state.revoked === true) { throw new Error("Cannot use a proxy that has been revoked. Did you pass an object from inside an immer function to an async process? " + JSON.stringify(latest(state))); }
} // This looks expensive, but only proxies are visited, and only objects without known changes are scanned.

function markChangesSweep(drafts) {
  // The natural order of drafts in the `scope` array is based on when they
  // were accessed. By processing drafts in reverse natural order, we have a
  // better chance of processing leaf nodes first. When a leaf node is known to
  // have changed, we can avoid any traversal of its ancestor nodes.
  for (var i = drafts.length - 1; i >= 0; i--) {
    var state = drafts[i][DRAFT_STATE];

    if (!state.modified) {
      switch (state.type) {
        case ProxyType.ES5Array:
          if (hasArrayChanges(state)) { markChangedES5(state); }
          break;

        case ProxyType.ES5Object:
          if (hasObjectChanges(state)) { markChangedES5(state); }
          break;
      }
    }
  }
}

function markChangesRecursively(object) {
  if (!object || typeof object !== "object") { return; }
  var state = object[DRAFT_STATE];
  if (!state) { return; }
  var base = state.base,
      draft = state.draft,
      assigned = state.assigned,
      type = state.type;

  if (type === ProxyType.ES5Object) {
    // Look for added keys.
    // TODO: looks quite duplicate to hasObjectChanges,
    // probably there is a faster way to detect changes, as sweep + recurse seems to do some
    // unnecessary work.
    // also: probably we can store the information we detect here, to speed up tree finalization!
    each(draft, function (key) {
      if (key === DRAFT_STATE) { return; } // The `undefined` check is a fast path for pre-existing keys.

      if (base[key] === undefined && !has(base, key)) {
        assigned[key] = true;
        markChangedES5(state);
      } else if (!assigned[key]) {
        // Only untouched properties trigger recursion.
        markChangesRecursively(draft[key]);
      }
    }); // Look for removed keys.

    each(base, function (key) {
      // The `undefined` check is a fast path for pre-existing keys.
      if (draft[key] === undefined && !has(draft, key)) {
        assigned[key] = false;
        markChangedES5(state);
      }
    });
  } else if (type === ProxyType.ES5Array && hasArrayChanges(state)) {
    markChangedES5(state);
    assigned.length = true;

    if (draft.length < base.length) {
      for (var i = draft.length; i < base.length; i++) { assigned[i] = false; }
    } else {
      for (var i = base.length; i < draft.length; i++) { assigned[i] = true; }
    }

    for (var i = 0; i < draft.length; i++) {
      // Only untouched indices trigger recursion.
      if (assigned[i] === undefined) { markChangesRecursively(draft[i]); }
    }
  }
}

function hasObjectChanges(state) {
  var base = state.base,
      draft = state.draft; // Search for added keys and changed keys. Start at the back, because
  // non-numeric keys are ordered by time of definition on the object.

  var keys = Object.keys(draft);

  for (var i = keys.length - 1; i >= 0; i--) {
    var key = keys[i];
    var baseValue = base[key]; // The `undefined` check is a fast path for pre-existing keys.

    if (baseValue === undefined && !has(base, key)) {
      return true;
    } // Once a base key is deleted, future changes go undetected, because its
    // descriptor is erased. This branch detects any missed changes.
    else {
        var value = draft[key];
        var state_1 = value && value[DRAFT_STATE];

        if (state_1 ? state_1.base !== baseValue : !is(value, baseValue)) {
          return true;
        }
      }
  } // At this point, no keys were added or changed.
  // Compare key count to determine if keys were deleted.


  return keys.length !== Object.keys(base).length;
}

function hasArrayChanges(state) {
  var draft = state.draft;
  if (draft.length !== state.base.length) { return true; } // See #116
  // If we first shorten the length, our array interceptors will be removed.
  // If after that new items are added, result in the same original length,
  // those last items will have no intercepting property.
  // So if there is no own descriptor on the last position, we know that items were removed and added
  // N.B.: splice, unshift, etc only shift values around, but not prop descriptors, so we only have to check
  // the last one

  var descriptor = Object.getOwnPropertyDescriptor(draft, draft.length - 1); // descriptor can be null, but only for newly created sparse arrays, eg. new Array(10)

  if (descriptor && !descriptor.get) { return true; } // For all other cases, we don't have to compare, as they would have been picked up by the index setters

  return false;
}

var DraftMap = function (_super) {
  if (!_super) {
    /* istanbul ignore next */
    throw new Error("Map is not polyfilled");
  }

  __extends(DraftMap, _super); // Create class manually, cause #502


  function DraftMap(target, parent) {
    this[DRAFT_STATE] = {
      type: ProxyType.Map,
      parent: parent,
      scope: parent ? parent.scope : ImmerScope.current,
      modified: false,
      finalized: false,
      copy: undefined,
      assigned: undefined,
      base: target,
      draft: this,
      isManual: false,
      revoked: false
    };
    return this;
  }

  var p = DraftMap.prototype; // TODO: smaller build size if we create a util for Object.defineProperty

  Object.defineProperty(p, "size", {
    get: function () {
      return latest(this[DRAFT_STATE]).size;
    },
    enumerable: true,
    configurable: true
  });

  p.has = function (key) {
    return latest(this[DRAFT_STATE]).has(key);
  };

  p.set = function (key, value) {
    var state = this[DRAFT_STATE];
    assertUnrevoked(state);

    if (latest(state).get(key) !== value) {
      prepareCopy$2(state);
      state.scope.immer.markChanged(state);
      state.assigned.set(key, true);
      state.copy.set(key, value);
      state.assigned.set(key, true);
    }

    return this;
  };

  p.delete = function (key) {
    if (!this.has(key)) {
      return false;
    }

    var state = this[DRAFT_STATE];
    assertUnrevoked(state);
    prepareCopy$2(state);
    state.scope.immer.markChanged(state);
    state.assigned.set(key, false);
    state.copy.delete(key);
    return true;
  };

  p.clear = function () {
    var state = this[DRAFT_STATE];
    assertUnrevoked(state);
    prepareCopy$2(state);
    state.scope.immer.markChanged(state);
    state.assigned = new Map();
    return state.copy.clear();
  };

  p.forEach = function (cb, thisArg) {
    var _this = this;

    var state = this[DRAFT_STATE];
    latest(state).forEach(function (_value, key, _map) {
      cb.call(thisArg, _this.get(key), key, _this);
    });
  };

  p.get = function (key) {
    var state = this[DRAFT_STATE];
    assertUnrevoked(state);
    var value = latest(state).get(key);

    if (state.finalized || !isDraftable(value)) {
      return value;
    }

    if (value !== state.base.get(key)) {
      return value; // either already drafted or reassigned
    } // despite what it looks, this creates a draft only once, see above condition


    var draft = state.scope.immer.createProxy(value, state);
    prepareCopy$2(state);
    state.copy.set(key, draft);
    return draft;
  };

  p.keys = function () {
    return latest(this[DRAFT_STATE]).keys();
  };

  p.values = function () {
    var _a;

    var _this = this;

    var iterator = this.keys();
    return _a = {}, _a[iteratorSymbol] = function () {
      return _this.values();
    }, _a.next = function () {
      var r = iterator.next();
      /* istanbul ignore next */

      if (r.done) { return r; }

      var value = _this.get(r.value);

      return {
        done: false,
        value: value
      };
    }, _a;
  };

  p.entries = function () {
    var _a;

    var _this = this;

    var iterator = this.keys();
    return _a = {}, _a[iteratorSymbol] = function () {
      return _this.entries();
    }, _a.next = function () {
      var r = iterator.next();
      /* istanbul ignore next */

      if (r.done) { return r; }

      var value = _this.get(r.value);

      return {
        done: false,
        value: [r.value, value]
      };
    }, _a;
  };

  p[iteratorSymbol] = function () {
    return this.entries();
  };

  return DraftMap;
}(Map);

function proxyMap(target, parent) {
  // @ts-ignore
  return new DraftMap(target, parent);
}

function prepareCopy$2(state) {
  if (!state.copy) {
    state.assigned = new Map();
    state.copy = new Map(state.base);
  }
}

var DraftSet = function (_super) {
  if (!_super) {
    /* istanbul ignore next */
    throw new Error("Set is not polyfilled");
  }

  __extends(DraftSet, _super); // Create class manually, cause #502


  function DraftSet(target, parent) {
    this[DRAFT_STATE] = {
      type: ProxyType.Set,
      parent: parent,
      scope: parent ? parent.scope : ImmerScope.current,
      modified: false,
      finalized: false,
      copy: undefined,
      base: target,
      draft: this,
      drafts: new Map(),
      revoked: false,
      isManual: false
    };
    return this;
  }

  var p = DraftSet.prototype;
  Object.defineProperty(p, "size", {
    get: function () {
      return latest(this[DRAFT_STATE]).size;
    },
    enumerable: true,
    configurable: true
  });

  p.has = function (value) {
    var state = this[DRAFT_STATE];
    assertUnrevoked(state); // bit of trickery here, to be able to recognize both the value, and the draft of its value

    if (!state.copy) {
      return state.base.has(value);
    }

    if (state.copy.has(value)) { return true; }
    if (state.drafts.has(value) && state.copy.has(state.drafts.get(value))) { return true; }
    return false;
  };

  p.add = function (value) {
    var state = this[DRAFT_STATE];
    assertUnrevoked(state);

    if (state.copy) {
      state.copy.add(value);
    } else if (!state.base.has(value)) {
      prepareCopy$3(state);
      state.scope.immer.markChanged(state);
      state.copy.add(value);
    }

    return this;
  };

  p.delete = function (value) {
    if (!this.has(value)) {
      return false;
    }

    var state = this[DRAFT_STATE];
    assertUnrevoked(state);
    prepareCopy$3(state);
    state.scope.immer.markChanged(state);
    return state.copy.delete(value) || (state.drafts.has(value) ? state.copy.delete(state.drafts.get(value)) :
    /* istanbul ignore next */
    false);
  };

  p.clear = function () {
    var state = this[DRAFT_STATE];
    assertUnrevoked(state);
    prepareCopy$3(state);
    state.scope.immer.markChanged(state);
    return state.copy.clear();
  };

  p.values = function () {
    var state = this[DRAFT_STATE];
    assertUnrevoked(state);
    prepareCopy$3(state);
    return state.copy.values();
  };

  p.entries = function entries() {
    var state = this[DRAFT_STATE];
    assertUnrevoked(state);
    prepareCopy$3(state);
    return state.copy.entries();
  };

  p.keys = function () {
    return this.values();
  };

  p[iteratorSymbol] = function () {
    return this.values();
  };

  p.forEach = function forEach(cb, thisArg) {
    var iterator = this.values();
    var result = iterator.next();

    while (!result.done) {
      cb.call(thisArg, result.value, result.value, this);
      result = iterator.next();
    }
  };

  return DraftSet;
}(Set);

function proxySet(target, parent) {
  // @ts-ignore
  return new DraftSet(target, parent);
}

function prepareCopy$3(state) {
  if (!state.copy) {
    // create drafts for all entries to preserve insertion order
    state.copy = new Set();
    state.base.forEach(function (value) {
      if (isDraftable(value)) {
        var draft = state.scope.immer.createProxy(value, state);
        state.drafts.set(value, draft);
        state.copy.add(draft);
      } else {
        state.copy.add(value);
      }
    });
  }
}

function generatePatches(state, basePath, patches, inversePatches) {
  switch (state.type) {
    case ProxyType.ProxyObject:
    case ProxyType.ES5Object:
    case ProxyType.Map:
      return generatePatchesFromAssigned(state, basePath, patches, inversePatches);

    case ProxyType.ES5Array:
    case ProxyType.ProxyArray:
      return generateArrayPatches(state, basePath, patches, inversePatches);

    case ProxyType.Set:
      return generateSetPatches(state, basePath, patches, inversePatches);
  }
}

function generateArrayPatches(state, basePath, patches, inversePatches) {
  var _a, _b;

  var base = state.base,
      assigned = state.assigned,
      copy = state.copy;
  /* istanbul ignore next */

  if (!copy) { die(); } // Reduce complexity by ensuring `base` is never longer.

  if (copy.length < base.length) {
    _a = [copy, base], base = _a[0], copy = _a[1];
    _b = [inversePatches, patches], patches = _b[0], inversePatches = _b[1];
  }

  var delta = copy.length - base.length; // Find the first replaced index.

  var start = 0;

  while (base[start] === copy[start] && start < base.length) {
    ++start;
  } // Find the last replaced index. Search from the end to optimize splice patches.


  var end = base.length;

  while (end > start && base[end - 1] === copy[end + delta - 1]) {
    --end;
  } // Process replaced indices.


  for (var i = start; i < end; ++i) {
    if (assigned[i] && copy[i] !== base[i]) {
      var path = basePath.concat([i]);
      patches.push({
        op: "replace",
        path: path,
        value: copy[i]
      });
      inversePatches.push({
        op: "replace",
        path: path,
        value: base[i]
      });
    }
  }

  var replaceCount = patches.length; // Process added indices.

  for (var i = end + delta - 1; i >= end; --i) {
    var path = basePath.concat([i]);
    patches[replaceCount + i - end] = {
      op: "add",
      path: path,
      value: copy[i]
    };
    inversePatches.push({
      op: "remove",
      path: path
    });
  }
} // This is used for both Map objects and normal objects.


function generatePatchesFromAssigned(state, basePath, patches, inversePatches) {
  var base = state.base,
      copy = state.copy;
  each(state.assigned, function (key, assignedValue) {
    var origValue = get(base, key);
    var value = get(copy, key);
    var op = !assignedValue ? "remove" : has(base, key) ? "replace" : "add";
    if (origValue === value && op === "replace") { return; }
    var path = basePath.concat(key);
    patches.push(op === "remove" ? {
      op: op,
      path: path
    } : {
      op: op,
      path: path,
      value: value
    });
    inversePatches.push(op === "add" ? {
      op: "remove",
      path: path
    } : op === "remove" ? {
      op: "add",
      path: path,
      value: origValue
    } : {
      op: "replace",
      path: path,
      value: origValue
    });
  });
}

function generateSetPatches(state, basePath, patches, inversePatches) {
  var base = state.base,
      copy = state.copy;
  var i = 0;
  base.forEach(function (value) {
    if (!copy.has(value)) {
      var path = basePath.concat([i]);
      patches.push({
        op: "remove",
        path: path,
        value: value
      });
      inversePatches.unshift({
        op: "add",
        path: path,
        value: value
      });
    }

    i++;
  });
  i = 0;
  copy.forEach(function (value) {
    if (!base.has(value)) {
      var path = basePath.concat([i]);
      patches.push({
        op: "add",
        path: path,
        value: value
      });
      inversePatches.unshift({
        op: "remove",
        path: path,
        value: value
      });
    }

    i++;
  });
}

function applyPatches(draft, patches) {
  patches.forEach(function (patch) {
    var path = patch.path,
        op = patch.op;
    /* istanbul ignore next */

    if (!path.length) { die(); }
    var base = draft;

    for (var i = 0; i < path.length - 1; i++) {
      base = get(base, path[i]);
      if (!base || typeof base !== "object") { throw new Error("Cannot apply patch, path doesn't resolve: " + path.join("/")); } // prettier-ignore
    }

    var type = getArchtype(base);
    var value = deepClonePatchValue(patch.value); // used to clone patch to ensure original patch is not modified, see #411

    var key = path[path.length - 1];

    switch (op) {
      case "replace":
        switch (type) {
          case Archtype.Map:
            return base.set(key, value);

          /* istanbul ignore next */

          case Archtype.Set:
            throw new Error('Sets cannot have "replace" patches.');

          default:
            // if value is an object, then it's assigned by reference
            // in the following add or remove ops, the value field inside the patch will also be modifyed
            // so we use value from the cloned patch
            // @ts-ignore
            return base[key] = value;
        }

      case "add":
        switch (type) {
          case Archtype.Array:
            return base.splice(key, 0, value);

          case Archtype.Map:
            return base.set(key, value);

          case Archtype.Set:
            return base.add(value);

          default:
            return base[key] = value;
        }

      case "remove":
        switch (type) {
          case Archtype.Array:
            return base.splice(key, 1);

          case Archtype.Map:
            return base.delete(key);

          case Archtype.Set:
            return base.delete(patch.value);

          default:
            return delete base[key];
        }

      default:
        throw new Error("Unsupported patch operation: " + op);
    }
  });
  return draft;
}

function deepClonePatchValue(obj) {
  if (!obj || typeof obj !== "object") { return obj; }
  if (Array.isArray(obj)) { return obj.map(deepClonePatchValue); }
  if (isMap(obj)) { return new Map(Array.from(obj.entries()).map(function (_a) {
    var k = _a[0],
        v = _a[1];
    return [k, deepClonePatchValue(v)];
  })); } // Not needed: if (isSet(obj)) return new Set(Array.from(obj.values()).map(deepClone))

  var cloned = Object.create(Object.getPrototypeOf(obj));

  for (var key in obj) { cloned[key] = deepClonePatchValue(obj[key]); }

  return cloned;
}

/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0

THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.

See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */

function __spreadArrays() {
    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;
    for (var r = Array(s), k = 0, i = 0; i < il; i++)
        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
            r[k] = a[j];
    return r;
}

/* istanbul ignore next */

function verifyMinified() {}

var configDefaults = {
  useProxies: typeof Proxy !== "undefined" && typeof Proxy.revocable !== "undefined" && typeof Reflect !== "undefined",
  autoFreeze: typeof process !== "undefined" ? process.env.NODE_ENV !== "production" :
  /* istanbul ignore next */
  verifyMinified.name === "verifyMinified",
  onAssign: null,
  onDelete: null,
  onCopy: null
};

var Immer =
/** @class */
function () {
  function Immer(config) {
    var _this = this;

    this.useProxies = false;
    this.autoFreeze = false;
    each(configDefaults, function (key, value) {
      var _a, _b; // @ts-ignore


      _this[key] = (_b = (_a = config) === null || _a === void 0 ? void 0 : _a[key], _b !== null && _b !== void 0 ? _b : value);
    });
    this.setUseProxies(this.useProxies);
    this.produce = this.produce.bind(this);
    this.produceWithPatches = this.produceWithPatches.bind(this);
  }
  /**
   * The `produce` function takes a value and a "recipe function" (whose
   * return value often depends on the base state). The recipe function is
   * free to mutate its first argument however it wants. All mutations are
   * only ever applied to a __copy__ of the base state.
   *
   * Pass only a function to create a "curried producer" which relieves you
   * from passing the recipe function every time.
   *
   * Only plain objects and arrays are made mutable. All other objects are
   * considered uncopyable.
   *
   * Note: This function is __bound__ to its `Immer` instance.
   *
   * @param {any} base - the initial state
   * @param {Function} producer - function that receives a proxy of the base state as first argument and which can be freely modified
   * @param {Function} patchListener - optional function that will be called with all the patches produced here
   * @returns {any} a new state, or the initial state if nothing was modified
   */


  Immer.prototype.produce = function (base, recipe, patchListener) {
    var _this = this; // curried invocation


    if (typeof base === "function" && typeof recipe !== "function") {
      var defaultBase_1 = recipe;
      recipe = base;
      var self_1 = this;
      return function curriedProduce(base) {
        var arguments$1 = arguments;

        var _this = this;

        if (base === void 0) {
          base = defaultBase_1;
        }

        var args = [];

        for (var _i = 1; _i < arguments.length; _i++) {
          args[_i - 1] = arguments$1[_i];
        }

        return self_1.produce(base, function (draft) {
          return recipe.call.apply(recipe, __spreadArrays([_this, draft], args));
        }); // prettier-ignore
      };
    } // prettier-ignore


    {
      if (typeof recipe !== "function") {
        throw new Error("The first or second argument to `produce` must be a function");
      }

      if (patchListener !== undefined && typeof patchListener !== "function") {
        throw new Error("The third argument to `produce` must be a function or undefined");
      }
    }
    var result; // Only plain objects, arrays, and "immerable classes" are drafted.

    if (isDraftable(base)) {
      var scope_1 = ImmerScope.enter(this);
      var proxy = this.createProxy(base, undefined);
      var hasError = true;

      try {
        result = recipe(proxy);
        hasError = false;
      } finally {
        // finally instead of catch + rethrow better preserves original stack
        if (hasError) { scope_1.revoke(); }else { scope_1.leave(); }
      }

      if (typeof Promise !== "undefined" && result instanceof Promise) {
        return result.then(function (result) {
          scope_1.usePatches(patchListener);
          return processResult(_this, result, scope_1);
        }, function (error) {
          scope_1.revoke();
          throw error;
        });
      }

      scope_1.usePatches(patchListener);
      return processResult(this, result, scope_1);
    } else {
      result = recipe(base);
      if (result === NOTHING) { return undefined; }
      if (result === undefined) { result = base; }
      maybeFreeze(this, result, true);
      return result;
    }
  };

  Immer.prototype.produceWithPatches = function (arg1, arg2, arg3) {
    var _this = this;

    if (typeof arg1 === "function") {
      return function (state) {
        var arguments$1 = arguments;

        var args = [];

        for (var _i = 1; _i < arguments.length; _i++) {
          args[_i - 1] = arguments$1[_i];
        }

        return _this.produceWithPatches(state, function (draft) {
          return arg1.apply(void 0, __spreadArrays([draft], args));
        });
      };
    } // non-curried form

    /* istanbul ignore next */


    if (arg3) { die(); }
    var patches, inversePatches;
    var nextState = this.produce(arg1, arg2, function (p, ip) {
      patches = p;
      inversePatches = ip;
    });
    return [nextState, patches, inversePatches];
  };

  Immer.prototype.createDraft = function (base) {
    if (!isDraftable(base)) {
      throw new Error("First argument to `createDraft` must be a plain object, an array, or an immerable object"); // prettier-ignore
    }

    var scope = ImmerScope.enter(this);
    var proxy = this.createProxy(base, undefined);
    proxy[DRAFT_STATE].isManual = true;
    scope.leave();
    return proxy;
  };

  Immer.prototype.finishDraft = function (draft, patchListener) {
    var state = draft && draft[DRAFT_STATE];

    if (!state || !state.isManual) {
      throw new Error("First argument to `finishDraft` must be a draft returned by `createDraft`"); // prettier-ignore
    }

    if (state.finalized) {
      throw new Error("The given draft is already finalized"); // prettier-ignore
    }

    var scope = state.scope;
    scope.usePatches(patchListener);
    return processResult(this, undefined, scope);
  };
  /**
   * Pass true to automatically freeze all copies created by Immer.
   *
   * By default, auto-freezing is disabled in production.
   */


  Immer.prototype.setAutoFreeze = function (value) {
    this.autoFreeze = value;
  };
  /**
   * Pass true to use the ES2015 `Proxy` class when creating drafts, which is
   * always faster than using ES5 proxies.
   *
   * By default, feature detection is used, so calling this is rarely necessary.
   */


  Immer.prototype.setUseProxies = function (value) {
    this.useProxies = value;
  };

  Immer.prototype.applyPatches = function (base, patches) {
    // If a patch replaces the entire state, take that replacement as base
    // before applying patches
    var i;

    for (i = patches.length - 1; i >= 0; i--) {
      var patch = patches[i];

      if (patch.path.length === 0 && patch.op === "replace") {
        base = patch.value;
        break;
      }
    }

    if (isDraft(base)) {
      // N.B: never hits if some patch a replacement, patches are never drafts
      return applyPatches(base, patches);
    } // Otherwise, produce a copy of the base state.


    return this.produce(base, function (draft) {
      return applyPatches(draft, patches.slice(i + 1));
    });
  };

  Immer.prototype.createProxy = function (value, parent) {
    // precondition: createProxy should be guarded by isDraftable, so we know we can safely draft
    var draft = isMap(value) ? proxyMap(value, parent) : isSet(value) ? proxySet(value, parent) : this.useProxies ? createProxy(value, parent) : createES5Proxy(value, parent);
    var scope = parent ? parent.scope : ImmerScope.current;
    scope.drafts.push(draft);
    return draft;
  };

  Immer.prototype.willFinalize = function (scope, thing, isReplaced) {
    if (!this.useProxies) { willFinalizeES5(scope, thing, isReplaced); }
  };

  Immer.prototype.markChanged = function (state) {
    if (this.useProxies) {
      markChanged(state);
    } else {
      markChangedES5(state);
    }
  };

  return Immer;
}();

var immer = new Immer();
/**
 * The `produce` function takes a value and a "recipe function" (whose
 * return value often depends on the base state). The recipe function is
 * free to mutate its first argument however it wants. All mutations are
 * only ever applied to a __copy__ of the base state.
 *
 * Pass only a function to create a "curried producer" which relieves you
 * from passing the recipe function every time.
 *
 * Only plain objects and arrays are made mutable. All other objects are
 * considered uncopyable.
 *
 * Note: This function is __bound__ to its `Immer` instance.
 *
 * @param {any} base - the initial state
 * @param {Function} producer - function that receives a proxy of the base state as first argument and which can be freely modified
 * @param {Function} patchListener - optional function that will be called with all the patches produced here
 * @returns {any} a new state, or the initial state if nothing was modified
 */

var produce = immer.produce;
/**
 * Like `produce`, but `produceWithPatches` always returns a tuple
 * [nextState, patches, inversePatches] (instead of just the next state)
 */

var produceWithPatches = immer.produceWithPatches.bind(immer);
/**
 * Pass true to automatically freeze all copies created by Immer.
 *
 * By default, auto-freezing is disabled in production.
 */

var setAutoFreeze = immer.setAutoFreeze.bind(immer);
/**
 * Pass true to use the ES2015 `Proxy` class when creating drafts, which is
 * always faster than using ES5 proxies.
 *
 * By default, feature detection is used, so calling this is rarely necessary.
 */

var setUseProxies = immer.setUseProxies.bind(immer);
/**
 * Apply an array of Immer patches to the first argument.
 *
 * This function is a producer, which means copy-on-write is in effect.
 */

var applyPatches$1 = immer.applyPatches.bind(immer);
/**
 * Create an Immer draft from the given base state, which may be a draft itself.
 * The draft can be modified until you finalize it with the `finishDraft` function.
 */

var createDraft = immer.createDraft.bind(immer);
/**
 * Finalize an Immer draft from a `createDraft` call, returning the base state
 * (if no changes were made) or a modified copy. The draft must *not* be
 * mutated afterwards.
 *
 * Pass a function as the 2nd argument to generate Immer patches based on the
 * changes that were made.
 */

var finishDraft = immer.finishDraft.bind(immer);
/**
 * This function is actually a no-op, but can be used to cast an immutable type
 * to an draft type and make TypeScript happy
 *
 * @param value
 */

function castDraft(value) {
  return value;
}
/**
 * This function is actually a no-op, but can be used to cast a mutable type
 * to an immutable type and make TypeScript happy
 * @param value
 */

function castImmutable(value) {
  return value;
}

exports.Immer = Immer;
exports.applyPatches = applyPatches$1;
exports.castDraft = castDraft;
exports.castImmutable = castImmutable;
exports.createDraft = createDraft;
exports.default = produce;
exports.finishDraft = finishDraft;
exports.immerable = DRAFTABLE;
exports.isDraft = isDraft;
exports.isDraftable = isDraftable;
exports.nothing = NOTHING;
exports.original = original;
exports.produce = produce;
exports.produceWithPatches = produceWithPatches;
exports.setAutoFreeze = setAutoFreeze;
exports.setUseProxies = setUseProxies;

});

unwrapExports(immer_1);
var immer_2 = immer_1.Immer;
var immer_3 = immer_1.applyPatches;
var immer_4 = immer_1.castDraft;
var immer_5 = immer_1.castImmutable;
var immer_6 = immer_1.createDraft;
var immer_7 = immer_1.finishDraft;
var immer_8 = immer_1.immerable;
var immer_9 = immer_1.isDraft;
var immer_10 = immer_1.isDraftable;
var immer_11 = immer_1.nothing;
var immer_12 = immer_1.original;
var immer_13 = immer_1.produce;
var immer_14 = immer_1.produceWithPatches;
var immer_15 = immer_1.setAutoFreeze;
var immer_16 = immer_1.setUseProxies;

var esrever = createCommonjsModule(function (module, exports) {
(function(root) {

	// Detect free variables `exports`
	var freeExports =  exports;

	// Detect free variable `module`
	var freeModule =  module &&
		module.exports == freeExports && module;

	// Detect free variable `global`, from Node.js or Browserified code,
	// and use it as `root`
	var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal;
	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
		root = freeGlobal;
	}

	/*--------------------------------------------------------------------------*/

	var regexSymbolWithCombiningMarks = /([\0-\u02FF\u0370-\u1AAF\u1B00-\u1DBF\u1E00-\u20CF\u2100-\uD7FF\uE000-\uFE1F\uFE30-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])([\u0300-\u036F\u1AB0-\u1AFF\u1DC0-\u1DFF\u20D0-\u20FF\uFE20-\uFE2F]+)/g;
	var regexSurrogatePair = /([\uD800-\uDBFF])([\uDC00-\uDFFF])/g;

	var reverse = function(string) {
		// Step 1: deal with combining marks and astral symbols (surrogate pairs)
		string = string
			// Swap symbols with their combining marks so the combining marks go first
			.replace(regexSymbolWithCombiningMarks, function($0, $1, $2) {
				// Reverse the combining marks so they will end up in the same order
				// later on (after another round of reversing)
				return reverse($2) + $1;
			})
			// Swap high and low surrogates so the low surrogates go first
			.replace(regexSurrogatePair, '$2$1');
		// Step 2: reverse the code units in the string
		var result = '';
		var index = string.length;
		while (index--) {
			result += string.charAt(index);
		}
		return result;
	};

	/*--------------------------------------------------------------------------*/

	var esrever = {
		'version': '0.2.0',
		'reverse': reverse
	};

	// Some AMD build optimizers, like r.js, check for specific condition patterns
	// like the following:
	if (freeExports && !freeExports.nodeType) {
		if (freeModule) { // in Node.js, io.js, or RingoJS v0.8.0+
			freeModule.exports = esrever;
		} else { // in Narwhal or RingoJS v0.7.0-
			for (var key in esrever) {
				esrever.hasOwnProperty(key) && (freeExports[key] = esrever[key]);
			}
		}
	} else { // in Rhino or a web browser
		root.esrever = esrever;
	}

}(commonjsGlobal));
});

var dist$5 = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, '__esModule', { value: true });

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }

var isPlainObject = _interopDefault(index_cjs);



function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}

var DIRTY_PATHS = new WeakMap();
var FLUSHING = new WeakMap();
var NORMALIZING = new WeakMap();
var PATH_REFS = new WeakMap();
var POINT_REFS = new WeakMap();
var RANGE_REFS = new WeakMap();

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
/**
 * Create a new Slate `Editor` object.
 */

var createEditor = () => {
  var editor = {
    children: [],
    operations: [],
    selection: null,
    marks: null,
    isInline: () => false,
    isVoid: () => false,
    onChange: () => {},
    apply: op => {
      for (var ref of Editor.pathRefs(editor)) {
        PathRef.transform(ref, op);
      }

      for (var _ref of Editor.pointRefs(editor)) {
        PointRef.transform(_ref, op);
      }

      for (var _ref2 of Editor.rangeRefs(editor)) {
        RangeRef.transform(_ref2, op);
      }

      var set = new Set();
      var dirtyPaths = [];

      var add = path => {
        if (path) {
          var key = path.join(',');

          if (!set.has(key)) {
            set.add(key);
            dirtyPaths.push(path);
          }
        }
      };

      var oldDirtyPaths = DIRTY_PATHS.get(editor) || [];
      var newDirtyPaths = getDirtyPaths(op);

      for (var path of oldDirtyPaths) {
        var newPath = Path.transform(path, op);
        add(newPath);
      }

      for (var _path of newDirtyPaths) {
        add(_path);
      }

      DIRTY_PATHS.set(editor, dirtyPaths);
      Editor.transform(editor, op);
      editor.operations.push(op);
      Editor.normalize(editor); // Clear any formats applied to the cursor if the selection changes.

      if (op.type === 'set_selection') {
        editor.marks = null;
      }

      if (!FLUSHING.get(editor)) {
        FLUSHING.set(editor, true);
        Promise.resolve().then(() => {
          FLUSHING.set(editor, false);
          editor.onChange();
          editor.operations = [];
        });
      }
    },
    addMark: (key, value) => {
      var {
        selection
      } = editor;

      if (selection) {
        if (Range.isExpanded(selection)) {
          Transforms.setNodes(editor, {
            [key]: value
          }, {
            match: Text.isText,
            split: true
          });
        } else {
          var marks = _objectSpread({}, Editor.marks(editor) || {}, {
            [key]: value
          });

          editor.marks = marks;
          editor.onChange();
        }
      }
    },
    deleteBackward: unit => {
      var {
        selection
      } = editor;

      if (selection && Range.isCollapsed(selection)) {
        Transforms.delete(editor, {
          unit,
          reverse: true
        });
      }
    },
    deleteForward: unit => {
      var {
        selection
      } = editor;

      if (selection && Range.isCollapsed(selection)) {
        Transforms.delete(editor, {
          unit
        });
      }
    },
    deleteFragment: () => {
      var {
        selection
      } = editor;

      if (selection && Range.isExpanded(selection)) {
        Transforms.delete(editor);
      }
    },
    insertBreak: () => {
      Transforms.splitNodes(editor, {
        always: true
      });
    },
    insertFragment: fragment => {
      Transforms.insertFragment(editor, fragment);
    },
    insertNode: node => {
      Transforms.insertNodes(editor, node);
    },
    insertText: text => {
      var {
        selection,
        marks
      } = editor;

      if (selection) {
        // If the cursor is at the end of an inline, move it outside of
        // the inline before inserting
        if (Range.isCollapsed(selection)) {
          var inline = Editor.above(editor, {
            match: n => Editor.isInline(editor, n),
            mode: 'highest'
          });

          if (inline) {
            var [, inlinePath] = inline;

            if (Editor.isEnd(editor, selection.anchor, inlinePath)) {
              var point = Editor.after(editor, inlinePath);
              Transforms.setSelection(editor, {
                anchor: point,
                focus: point
              });
            }
          }
        }

        if (marks) {
          var node = _objectSpread({
            text
          }, marks);

          Transforms.insertNodes(editor, node);
        } else {
          Transforms.insertText(editor, text);
        }

        editor.marks = null;
      }
    },
    normalizeNode: entry => {
      var [node, path] = entry; // There are no core normalizations for text nodes.

      if (Text.isText(node)) {
        return;
      } // Ensure that block and inline nodes have at least one text child.


      if (Element.isElement(node) && node.children.length === 0) {
        var child = {
          text: ''
        };
        Transforms.insertNodes(editor, child, {
          at: path.concat(0),
          voids: true
        });
        return;
      } // Determine whether the node should have block or inline children.


      var shouldHaveInlines = Editor.isEditor(node) ? false : Element.isElement(node) && (editor.isInline(node) || node.children.length === 0 || Text.isText(node.children[0]) || editor.isInline(node.children[0])); // Since we'll be applying operations while iterating, keep track of an
      // index that accounts for any added/removed nodes.

      var n = 0;

      for (var i = 0; i < node.children.length; i++, n++) {
        var _child = node.children[i];
        var prev = node.children[i - 1];
        var isLast = i === node.children.length - 1;
        var isInlineOrText = Text.isText(_child) || Element.isElement(_child) && editor.isInline(_child); // Only allow block nodes in the top-level children and parent blocks
        // that only contain block nodes. Similarly, only allow inline nodes in
        // other inline nodes, or parent blocks that only contain inlines and
        // text.

        if (isInlineOrText !== shouldHaveInlines) {
          Transforms.removeNodes(editor, {
            at: path.concat(n),
            voids: true
          });
          n--;
        } else if (Element.isElement(_child)) {
          // Ensure that inline nodes are surrounded by text nodes.
          if (editor.isInline(_child)) {
            if (prev == null || !Text.isText(prev)) {
              var newChild = {
                text: ''
              };
              Transforms.insertNodes(editor, newChild, {
                at: path.concat(n),
                voids: true
              });
              n++;
            } else if (isLast) {
              var _newChild = {
                text: ''
              };
              Transforms.insertNodes(editor, _newChild, {
                at: path.concat(n + 1),
                voids: true
              });
              n++;
            }
          }
        } else {
          // Merge adjacent text nodes that are empty or match.
          if (prev != null && Text.isText(prev)) {
            if (Text.equals(_child, prev, {
              loose: true
            })) {
              Transforms.mergeNodes(editor, {
                at: path.concat(n),
                voids: true
              });
              n--;
            } else if (prev.text === '') {
              Transforms.removeNodes(editor, {
                at: path.concat(n - 1),
                voids: true
              });
              n--;
            } else if (isLast && _child.text === '') {
              Transforms.removeNodes(editor, {
                at: path.concat(n),
                voids: true
              });
              n--;
            }
          }
        }
      }
    },
    removeMark: key => {
      var {
        selection
      } = editor;

      if (selection) {
        if (Range.isExpanded(selection)) {
          Transforms.unsetNodes(editor, key, {
            match: Text.isText,
            split: true
          });
        } else {
          var marks = _objectSpread({}, Editor.marks(editor) || {});

          delete marks[key];
          editor.marks = marks;
          editor.onChange();
        }
      }
    }
  };
  return editor;
};
/**
 * Get the "dirty" paths generated from an operation.
 */

var getDirtyPaths = op => {
  switch (op.type) {
    case 'insert_text':
    case 'remove_text':
    case 'set_node':
      {
        var {
          path
        } = op;
        return Path.levels(path);
      }

    case 'insert_node':
      {
        var {
          node,
          path: _path2
        } = op;
        var levels = Path.levels(_path2);
        var descendants = Text.isText(node) ? [] : Array.from(Node.nodes(node), (_ref3) => {
          var [, p] = _ref3;
          return _path2.concat(p);
        });
        return [...levels, ...descendants];
      }

    case 'merge_node':
      {
        var {
          path: _path3
        } = op;
        var ancestors = Path.ancestors(_path3);
        var previousPath = Path.previous(_path3);
        return [...ancestors, previousPath];
      }

    case 'move_node':
      {
        var {
          path: _path4,
          newPath
        } = op;

        if (Path.equals(_path4, newPath)) {
          return [];
        }

        var oldAncestors = [];
        var newAncestors = [];

        for (var ancestor of Path.ancestors(_path4)) {
          var p = Path.transform(ancestor, op);
          oldAncestors.push(p);
        }

        for (var _ancestor of Path.ancestors(newPath)) {
          var _p = Path.transform(_ancestor, op);

          newAncestors.push(_p);
        }

        return [...oldAncestors, ...newAncestors];
      }

    case 'remove_node':
      {
        var {
          path: _path5
        } = op;

        var _ancestors = Path.ancestors(_path5);

        return [..._ancestors];
      }

    case 'split_node':
      {
        var {
          path: _path6
        } = op;

        var _levels = Path.levels(_path6);

        var nextPath = Path.next(_path6);
        return [..._levels, nextPath];
      }

    default:
      {
        return [];
      }
  }
};

function _objectWithoutPropertiesLoose(source, excluded) {
  if (source == null) return {};
  var target = {};
  var sourceKeys = Object.keys(source);
  var key, i;

  for (i = 0; i < sourceKeys.length; i++) {
    key = sourceKeys[i];
    if (excluded.indexOf(key) >= 0) continue;
    target[key] = source[key];
  }

  return target;
}

function _objectWithoutProperties(source, excluded) {
  if (source == null) return {};
  var target = _objectWithoutPropertiesLoose(source, excluded);
  var key, i;

  if (Object.getOwnPropertySymbols) {
    var sourceSymbolKeys = Object.getOwnPropertySymbols(source);

    for (i = 0; i < sourceSymbolKeys.length; i++) {
      key = sourceSymbolKeys[i];
      if (excluded.indexOf(key) >= 0) continue;
      if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
      target[key] = source[key];
    }
  }

  return target;
}

/**
 * Constants for string distance checking.
 */
var SPACE = /\s/;
var PUNCTUATION = /[\u0021-\u0023\u0025-\u002A\u002C-\u002F\u003A\u003B\u003F\u0040\u005B-\u005D\u005F\u007B\u007D\u00A1\u00A7\u00AB\u00B6\u00B7\u00BB\u00BF\u037E\u0387\u055A-\u055F\u0589\u058A\u05BE\u05C0\u05C3\u05C6\u05F3\u05F4\u0609\u060A\u060C\u060D\u061B\u061E\u061F\u066A-\u066D\u06D4\u0700-\u070D\u07F7-\u07F9\u0830-\u083E\u085E\u0964\u0965\u0970\u0AF0\u0DF4\u0E4F\u0E5A\u0E5B\u0F04-\u0F12\u0F14\u0F3A-\u0F3D\u0F85\u0FD0-\u0FD4\u0FD9\u0FDA\u104A-\u104F\u10FB\u1360-\u1368\u1400\u166D\u166E\u169B\u169C\u16EB-\u16ED\u1735\u1736\u17D4-\u17D6\u17D8-\u17DA\u1800-\u180A\u1944\u1945\u1A1E\u1A1F\u1AA0-\u1AA6\u1AA8-\u1AAD\u1B5A-\u1B60\u1BFC-\u1BFF\u1C3B-\u1C3F\u1C7E\u1C7F\u1CC0-\u1CC7\u1CD3\u2010-\u2027\u2030-\u2043\u2045-\u2051\u2053-\u205E\u207D\u207E\u208D\u208E\u2329\u232A\u2768-\u2775\u27C5\u27C6\u27E6-\u27EF\u2983-\u2998\u29D8-\u29DB\u29FC\u29FD\u2CF9-\u2CFC\u2CFE\u2CFF\u2D70\u2E00-\u2E2E\u2E30-\u2E3B\u3001-\u3003\u3008-\u3011\u3014-\u301F\u3030\u303D\u30A0\u30FB\uA4FE\uA4FF\uA60D-\uA60F\uA673\uA67E\uA6F2-\uA6F7\uA874-\uA877\uA8CE\uA8CF\uA8F8-\uA8FA\uA92E\uA92F\uA95F\uA9C1-\uA9CD\uA9DE\uA9DF\uAA5C-\uAA5F\uAADE\uAADF\uAAF0\uAAF1\uABEB\uFD3E\uFD3F\uFE10-\uFE19\uFE30-\uFE52\uFE54-\uFE61\uFE63\uFE68\uFE6A\uFE6B\uFF01-\uFF03\uFF05-\uFF0A\uFF0C-\uFF0F\uFF1A\uFF1B\uFF1F\uFF20\uFF3B-\uFF3D\uFF3F\uFF5B\uFF5D\uFF5F-\uFF65]/;
var CHAMELEON = /['\u2018\u2019]/;
var SURROGATE_START = 0xd800;
var SURROGATE_END = 0xdfff;
var ZERO_WIDTH_JOINER = 0x200d;
/**
 * Get the distance to the end of the first character in a string of text.
 */

var getCharacterDistance = text => {
  var offset = 0; // prev types:
  // SURR: surrogate pair
  // MOD: modifier (technically also surrogate pair)
  // ZWJ: zero width joiner
  // VAR: variation selector
  // BMP: sequenceable character from basic multilingual plane

  var prev = null;
  var charCode = text.charCodeAt(0);

  while (charCode) {
    if (isSurrogate(charCode)) {
      var modifier = isModifier(charCode, text, offset); // Early returns are the heart of this function, where we decide if previous and current
      // codepoints should form a single character (in terms of how many of them should selection
      // jump over).

      if (prev === 'SURR' || prev === 'BMP') {
        break;
      }

      offset += 2;
      prev = modifier ? 'MOD' : 'SURR';
      charCode = text.charCodeAt(offset); // Absolutely fine to `continue` without any checks because if `charCode` is NaN (which
      // is the case when out of `text` range), next `while` loop won"t execute and we"re done.

      continue;
    }

    if (charCode === ZERO_WIDTH_JOINER) {
      offset += 1;
      prev = 'ZWJ';
      charCode = text.charCodeAt(offset);
      continue;
    }

    if (isBMPEmoji(charCode)) {
      if (prev && prev !== 'ZWJ' && prev !== 'VAR') {
        break;
      }

      offset += 1;
      prev = 'BMP';
      charCode = text.charCodeAt(offset);
      continue;
    }

    if (isVariationSelector(charCode)) {
      if (prev && prev !== 'ZWJ') {
        break;
      }

      offset += 1;
      prev = 'VAR';
      charCode = text.charCodeAt(offset);
      continue;
    } // Modifier 'groups up' with what ever character is before that (even whitespace), need to
    // look ahead.


    if (prev === 'MOD') {
      offset += 1;
      break;
    } // If while loop ever gets here, we're done (e.g latin chars).


    break;
  }

  return offset || 1;
};
/**
 * Get the distance to the end of the first word in a string of text.
 */

var getWordDistance = text => {
  var length = 0;
  var i = 0;
  var started = false;
  var char;

  while (char = text.charAt(i)) {
    var l = getCharacterDistance(char);
    char = text.slice(i, i + l);
    var rest = text.slice(i + l);

    if (isWordCharacter(char, rest)) {
      started = true;
      length += l;
    } else if (!started) {
      length += l;
    } else {
      break;
    }

    i += l;
  }

  return length;
};
/**
 * Check if a character is a word character. The `remaining` argument is used
 * because sometimes you must read subsequent characters to truly determine it.
 */

var isWordCharacter = (char, remaining) => {
  if (SPACE.test(char)) {
    return false;
  } // Chameleons count as word characters as long as they're in a word, so
  // recurse to see if the next one is a word character or not.


  if (CHAMELEON.test(char)) {
    var next = remaining.charAt(0);
    var length = getCharacterDistance(next);
    next = remaining.slice(0, length);
    var rest = remaining.slice(length);

    if (isWordCharacter(next, rest)) {
      return true;
    }
  }

  if (PUNCTUATION.test(char)) {
    return false;
  }

  return true;
};
/**
 * Determines if `code` is a surrogate
 */


var isSurrogate = code => SURROGATE_START <= code && code <= SURROGATE_END;
/**
 * Does `code` form Modifier with next one.
 *
 * https://emojipedia.org/modifiers/
 */


var isModifier = (code, text, offset) => {
  if (code === 0xd83c) {
    var next = text.charCodeAt(offset + 1);
    return next <= 0xdfff && next >= 0xdffb;
  }

  return false;
};
/**
 * Is `code` a Variation Selector.
 *
 * https://codepoints.net/variation_selectors
 */


var isVariationSelector = code => {
  return code <= 0xfe0f && code >= 0xfe00;
};
/**
 * Is `code` one of the BMP codes used in emoji sequences.
 *
 * https://emojipedia.org/emoji-zwj-sequences/
 */


var isBMPEmoji = code => {
  // This requires tiny bit of maintanance, better ideas?
  // Fortunately it only happens if new Unicode Standard
  // is released. Fails gracefully if upkeep lags behind,
  // same way Slate previously behaved with all emojis.
  return code === 0x2764 || // heart (❤)
  code === 0x2642 || // male (♂)
  code === 0x2640 || // female (♀)
  code === 0x2620 || // scull (☠)
  code === 0x2695 || // medical (⚕)
  code === 0x2708 || // plane (✈️)
  code === 0x25ef // large circle (◯)
  ;
};

function ownKeys$1(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread$1(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$1(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$1(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
var Editor = {
  /**
   * Get the ancestor above a location in the document.
   */
  above(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      voids = false,
      mode = 'lowest',
      at = editor.selection,
      match
    } = options;

    if (!at) {
      return;
    }

    var path = Editor.path(editor, at);
    var reverse = mode === 'lowest';

    for (var [n, p] of Editor.levels(editor, {
      at: path,
      voids,
      match,
      reverse
    })) {
      if (!Text.isText(n) && !Path.equals(path, p)) {
        return [n, p];
      }
    }
  },

  /**
   * Add a custom property to the leaf text nodes in the current selection.
   *
   * If the selection is currently collapsed, the marks will be added to the
   * `editor.marks` property instead, and applied when text is inserted next.
   */
  addMark(editor, key, value) {
    editor.addMark(key, value);
  },

  /**
   * Get the point after a location.
   */
  after(editor, at) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var anchor = Editor.point(editor, at, {
      edge: 'end'
    });
    var focus = Editor.end(editor, []);
    var range = {
      anchor,
      focus
    };
    var {
      distance = 1
    } = options;
    var d = 0;
    var target;

    for (var p of Editor.positions(editor, _objectSpread$1({}, options, {
      at: range
    }))) {
      if (d > distance) {
        break;
      }

      if (d !== 0) {
        target = p;
      }

      d++;
    }

    return target;
  },

  /**
   * Get the point before a location.
   */
  before(editor, at) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var anchor = Editor.start(editor, []);
    var focus = Editor.point(editor, at, {
      edge: 'start'
    });
    var range = {
      anchor,
      focus
    };
    var {
      distance = 1
    } = options;
    var d = 0;
    var target;

    for (var p of Editor.positions(editor, _objectSpread$1({}, options, {
      at: range,
      reverse: true
    }))) {
      if (d > distance) {
        break;
      }

      if (d !== 0) {
        target = p;
      }

      d++;
    }

    return target;
  },

  /**
   * Delete content in the editor backward from the current selection.
   */
  deleteBackward(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      unit = 'character'
    } = options;
    editor.deleteBackward(unit);
  },

  /**
   * Delete content in the editor forward from the current selection.
   */
  deleteForward(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      unit = 'character'
    } = options;
    editor.deleteForward(unit);
  },

  /**
   * Delete the content in the current selection.
   */
  deleteFragment(editor) {
    editor.deleteFragment();
  },

  /**
   * Get the start and end points of a location.
   */
  edges(editor, at) {
    return [Editor.start(editor, at), Editor.end(editor, at)];
  },

  /**
   * Get the end point of a location.
   */
  end(editor, at) {
    return Editor.point(editor, at, {
      edge: 'end'
    });
  },

  /**
   * Get the first node at a location.
   */
  first(editor, at) {
    var path = Editor.path(editor, at, {
      edge: 'start'
    });
    return Editor.node(editor, path);
  },

  /**
   * Get the fragment at a location.
   */
  fragment(editor, at) {
    var range = Editor.range(editor, at);
    var fragment = Node.fragment(editor, range);
    return fragment;
  },

  /**
   * Check if a node has block children.
   */
  hasBlocks(editor, element) {
    return element.children.some(n => Editor.isBlock(editor, n));
  },

  /**
   * Check if a node has inline and text children.
   */
  hasInlines(editor, element) {
    return element.children.some(n => Text.isText(n) || Editor.isInline(editor, n));
  },

  /**
   * Check if a node has text children.
   */
  hasTexts(editor, element) {
    return element.children.every(n => Text.isText(n));
  },

  /**
   * Insert a block break at the current selection.
   *
   * If the selection is currently expanded, it will be deleted first.
   */
  insertBreak(editor) {
    editor.insertBreak();
  },

  /**
   * Insert a fragment at the current selection.
   *
   * If the selection is currently expanded, it will be deleted first.
   */
  insertFragment(editor, fragment) {
    editor.insertFragment(fragment);
  },

  /**
   * Insert a node at the current selection.
   *
   * If the selection is currently expanded, it will be deleted first.
   */
  insertNode(editor, node) {
    editor.insertNode(node);
  },

  /**
   * Insert text at the current selection.
   *
   * If the selection is currently expanded, it will be deleted first.
   */
  insertText(editor, text) {
    editor.insertText(text);
  },

  /**
   * Check if a value is a block `Element` object.
   */
  isBlock(editor, value) {
    return Element.isElement(value) && !editor.isInline(value);
  },

  /**
   * Check if a value is an `Editor` object.
   */
  isEditor(value) {
    return isPlainObject(value) && typeof value.addMark === 'function' && typeof value.apply === 'function' && typeof value.deleteBackward === 'function' && typeof value.deleteForward === 'function' && typeof value.deleteFragment === 'function' && typeof value.insertBreak === 'function' && typeof value.insertFragment === 'function' && typeof value.insertNode === 'function' && typeof value.insertText === 'function' && typeof value.isInline === 'function' && typeof value.isVoid === 'function' && typeof value.normalizeNode === 'function' && typeof value.onChange === 'function' && typeof value.removeMark === 'function' && (value.marks === null || isPlainObject(value.marks)) && (value.selection === null || Range.isRange(value.selection)) && Node.isNodeList(value.children) && Operation.isOperationList(value.operations);
  },

  /**
   * Check if a point is the end point of a location.
   */
  isEnd(editor, point, at) {
    var end = Editor.end(editor, at);
    return Point.equals(point, end);
  },

  /**
   * Check if a point is an edge of a location.
   */
  isEdge(editor, point, at) {
    return Editor.isStart(editor, point, at) || Editor.isEnd(editor, point, at);
  },

  /**
   * Check if an element is empty, accounting for void nodes.
   */
  isEmpty(editor, element) {
    var {
      children
    } = element;
    var [first] = children;
    return children.length === 0 || children.length === 1 && Text.isText(first) && first.text === '' && !editor.isVoid(element);
  },

  /**
   * Check if a value is an inline `Element` object.
   */
  isInline(editor, value) {
    return Element.isElement(value) && editor.isInline(value);
  },

  /**
   * Check if the editor is currently normalizing after each operation.
   */
  isNormalizing(editor) {
    var isNormalizing = NORMALIZING.get(editor);
    return isNormalizing === undefined ? true : isNormalizing;
  },

  /**
   * Check if a point is the start point of a location.
   */
  isStart(editor, point, at) {
    // PERF: If the offset isn't `0` we know it's not the start.
    if (point.offset !== 0) {
      return false;
    }

    var start = Editor.start(editor, at);
    return Point.equals(point, start);
  },

  /**
   * Check if a value is a void `Element` object.
   */
  isVoid(editor, value) {
    return Element.isElement(value) && editor.isVoid(value);
  },

  /**
   * Get the last node at a location.
   */
  last(editor, at) {
    var path = Editor.path(editor, at, {
      edge: 'end'
    });
    return Editor.node(editor, path);
  },

  /**
   * Get the leaf text node at a location.
   */
  leaf(editor, at) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var path = Editor.path(editor, at, options);
    var node = Node.leaf(editor, path);
    return [node, path];
  },

  /**
   * Iterate through all of the levels at a location.
   */
  *levels(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      at = editor.selection,
      reverse = false,
      voids = false
    } = options;
    var {
      match
    } = options;

    if (match == null) {
      match = () => true;
    }

    if (!at) {
      return;
    }

    var levels = [];
    var path = Editor.path(editor, at);

    for (var [n, p] of Node.levels(editor, path)) {
      if (!match(n)) {
        continue;
      }

      levels.push([n, p]);

      if (!voids && Editor.isVoid(editor, n)) {
        break;
      }
    }

    if (reverse) {
      levels.reverse();
    }

    yield* levels;
  },

  /**
   * Get the marks that would be added to text at the current selection.
   */
  marks(editor) {
    var {
      marks,
      selection
    } = editor;

    if (!selection) {
      return null;
    }

    if (marks) {
      return marks;
    }

    if (Range.isExpanded(selection)) {
      var [match] = Editor.nodes(editor, {
        match: Text.isText
      });

      if (match) {
        var [_node] = match;

        var _rest = _objectWithoutProperties(_node, ["text"]);

        return _rest;
      } else {
        return {};
      }
    }

    var {
      anchor
    } = selection;
    var {
      path
    } = anchor;
    var [node] = Editor.leaf(editor, path);

    if (anchor.offset === 0) {
      var prev = Editor.previous(editor, {
        at: path,
        match: Text.isText
      });
      var block = Editor.above(editor, {
        match: n => Editor.isBlock(editor, n)
      });

      if (prev && block) {
        var [prevNode, prevPath] = prev;
        var [, blockPath] = block;

        if (Path.isAncestor(blockPath, prevPath)) {
          node = prevNode;
        }
      }
    }

    var rest = _objectWithoutProperties(node, ["text"]);

    return rest;
  },

  /**
   * Get the matching node in the branch of the document after a location.
   */
  next(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      mode = 'lowest',
      voids = false
    } = options;
    var {
      match,
      at = editor.selection
    } = options;

    if (!at) {
      return;
    }

    var [, from] = Editor.last(editor, at);
    var [, to] = Editor.last(editor, []);
    var span = [from, to];

    if (Path.isPath(at) && at.length === 0) {
      throw new Error("Cannot get the next node from the root node!");
    }

    if (match == null) {
      if (Path.isPath(at)) {
        var [parent] = Editor.parent(editor, at);

        match = n => parent.children.includes(n);
      } else {
        match = () => true;
      }
    }

    var [, next] = Editor.nodes(editor, {
      at: span,
      match,
      mode,
      voids
    });
    return next;
  },

  /**
   * Get the node at a location.
   */
  node(editor, at) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var path = Editor.path(editor, at, options);
    var node = Node.get(editor, path);
    return [node, path];
  },

  /**
   * Iterate through all of the nodes in the Editor.
   */
  *nodes(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      at = editor.selection,
      mode = 'all',
      universal = false,
      reverse = false,
      voids = false
    } = options;
    var {
      match
    } = options;

    if (!match) {
      match = () => true;
    }

    if (!at) {
      return;
    }

    var from;
    var to;

    if (Span.isSpan(at)) {
      from = at[0];
      to = at[1];
    } else {
      var first = Editor.path(editor, at, {
        edge: 'start'
      });
      var last = Editor.path(editor, at, {
        edge: 'end'
      });
      from = reverse ? last : first;
      to = reverse ? first : last;
    }

    var iterable = Node.nodes(editor, {
      reverse,
      from,
      to,
      pass: (_ref) => {
        var [n] = _ref;
        return voids ? false : Editor.isVoid(editor, n);
      }
    });
    var matches = [];
    var hit;

    for (var [node, path] of iterable) {
      var isLower = hit && Path.compare(path, hit[1]) === 0; // In highest mode any node lower than the last hit is not a match.

      if (mode === 'highest' && isLower) {
        continue;
      }

      if (!match(node)) {
        // If we've arrived at a leaf text node that is not lower than the last
        // hit, then we've found a branch that doesn't include a match, which
        // means the match is not universal.
        if (universal && !isLower && Text.isText(node)) {
          return;
        } else {
          continue;
        }
      } // If there's a match and it's lower than the last, update the hit.


      if (mode === 'lowest' && isLower) {
        hit = [node, path];
        continue;
      } // In lowest mode we emit the last hit, once it's guaranteed lowest.


      var emit = mode === 'lowest' ? hit : [node, path];

      if (emit) {
        if (universal) {
          matches.push(emit);
        } else {
          yield emit;
        }
      }

      hit = [node, path];
    } // Since lowest is always emitting one behind, catch up at the end.


    if (mode === 'lowest' && hit) {
      if (universal) {
        matches.push(hit);
      } else {
        yield hit;
      }
    } // Universal defers to ensure that the match occurs in every branch, so we
    // yield all of the matches after iterating.


    if (universal) {
      yield* matches;
    }
  },

  /**
   * Normalize any dirty objects in the editor.
   */
  normalize(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      force = false
    } = options;

    var getDirtyPaths = editor => {
      return DIRTY_PATHS.get(editor) || [];
    };

    if (!Editor.isNormalizing(editor)) {
      return;
    }

    if (force) {
      var allPaths = Array.from(Node.nodes(editor), (_ref2) => {
        var [, p] = _ref2;
        return p;
      });
      DIRTY_PATHS.set(editor, allPaths);
    }

    if (getDirtyPaths(editor).length === 0) {
      return;
    }

    Editor.withoutNormalizing(editor, () => {
      var max = getDirtyPaths(editor).length * 42; // HACK: better way?

      var m = 0;

      while (getDirtyPaths(editor).length !== 0) {
        if (m > max) {
          throw new Error("\n            Could not completely normalize the editor after ".concat(max, " iterations! This is usually due to incorrect normalization logic that leaves a node in an invalid state.\n          "));
        }

        var path = getDirtyPaths(editor).pop();
        var entry = Editor.node(editor, path);
        editor.normalizeNode(entry);
        m++;
      }
    });
  },

  /**
   * Get the parent node of a location.
   */
  parent(editor, at) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var path = Editor.path(editor, at, options);
    var parentPath = Path.parent(path);
    var entry = Editor.node(editor, parentPath);
    return entry;
  },

  /**
   * Get the path of a location.
   */
  path(editor, at) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var {
      depth,
      edge
    } = options;

    if (Path.isPath(at)) {
      if (edge === 'start') {
        var [, firstPath] = Node.first(editor, at);
        at = firstPath;
      } else if (edge === 'end') {
        var [, lastPath] = Node.last(editor, at);
        at = lastPath;
      }
    }

    if (Range.isRange(at)) {
      if (edge === 'start') {
        at = Range.start(at);
      } else if (edge === 'end') {
        at = Range.end(at);
      } else {
        at = Path.common(at.anchor.path, at.focus.path);
      }
    }

    if (Point.isPoint(at)) {
      at = at.path;
    }

    if (depth != null) {
      at = at.slice(0, depth);
    }

    return at;
  },

  /**
   * Create a mutable ref for a `Path` object, which will stay in sync as new
   * operations are applied to the editor.
   */
  pathRef(editor, path) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var {
      affinity = 'forward'
    } = options;
    var ref = {
      current: path,
      affinity,

      unref() {
        var {
          current
        } = ref;
        var pathRefs = Editor.pathRefs(editor);
        pathRefs.delete(ref);
        ref.current = null;
        return current;
      }

    };
    var refs = Editor.pathRefs(editor);
    refs.add(ref);
    return ref;
  },

  /**
   * Get the set of currently tracked path refs of the editor.
   */
  pathRefs(editor) {
    var refs = PATH_REFS.get(editor);

    if (!refs) {
      refs = new Set();
      PATH_REFS.set(editor, refs);
    }

    return refs;
  },

  /**
   * Get the start or end point of a location.
   */
  point(editor, at) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var {
      edge = 'start'
    } = options;

    if (Path.isPath(at)) {
      var path;

      if (edge === 'end') {
        var [, lastPath] = Node.last(editor, at);
        path = lastPath;
      } else {
        var [, firstPath] = Node.first(editor, at);
        path = firstPath;
      }

      var node = Node.get(editor, path);

      if (!Text.isText(node)) {
        throw new Error("Cannot get the ".concat(edge, " point in the node at path [").concat(at, "] because it has no ").concat(edge, " text node."));
      }

      return {
        path,
        offset: edge === 'end' ? node.text.length : 0
      };
    }

    if (Range.isRange(at)) {
      var [start, end] = Range.edges(at);
      return edge === 'start' ? start : end;
    }

    return at;
  },

  /**
   * Create a mutable ref for a `Point` object, which will stay in sync as new
   * operations are applied to the editor.
   */
  pointRef(editor, point) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var {
      affinity = 'forward'
    } = options;
    var ref = {
      current: point,
      affinity,

      unref() {
        var {
          current
        } = ref;
        var pointRefs = Editor.pointRefs(editor);
        pointRefs.delete(ref);
        ref.current = null;
        return current;
      }

    };
    var refs = Editor.pointRefs(editor);
    refs.add(ref);
    return ref;
  },

  /**
   * Get the set of currently tracked point refs of the editor.
   */
  pointRefs(editor) {
    var refs = POINT_REFS.get(editor);

    if (!refs) {
      refs = new Set();
      POINT_REFS.set(editor, refs);
    }

    return refs;
  },

  /**
   * Iterate through all of the positions in the document where a `Point` can be
   * placed.
   *
   * By default it will move forward by individual offsets at a time,  but you
   * can pass the `unit: 'character'` option to moved forward one character, word,
   * or line at at time.
   *
   * Note: void nodes are treated as a single point, and iteration will not
   * happen inside their content.
   */
  *positions(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      at = editor.selection,
      unit = 'offset',
      reverse = false
    } = options;

    if (!at) {
      return;
    }

    var range = Editor.range(editor, at);
    var [start, end] = Range.edges(range);
    var first = reverse ? end : start;
    var string = '';
    var available = 0;
    var offset = 0;
    var distance = null;
    var isNewBlock = false;

    var advance = () => {
      if (distance == null) {
        if (unit === 'character') {
          distance = getCharacterDistance(string);
        } else if (unit === 'word') {
          distance = getWordDistance(string);
        } else if (unit === 'line' || unit === 'block') {
          distance = string.length;
        } else {
          distance = 1;
        }

        string = string.slice(distance);
      } // Add or substract the offset.


      offset = reverse ? offset - distance : offset + distance; // Subtract the distance traveled from the available text.

      available = available - distance; // If the available had room to spare, reset the distance so that it will
      // advance again next time. Otherwise, set it to the overflow amount.

      distance = available >= 0 ? null : 0 - available;
    };

    for (var [node, path] of Editor.nodes(editor, {
      at,
      reverse
    })) {
      if (Element.isElement(node)) {
        // Void nodes are a special case, since we don't want to iterate over
        // their content. We instead always just yield their first point.
        if (editor.isVoid(node)) {
          yield Editor.start(editor, path);
          continue;
        }

        if (editor.isInline(node)) {
          continue;
        }

        if (Editor.hasInlines(editor, node)) {
          var e = Path.isAncestor(path, end.path) ? end : Editor.end(editor, path);
          var s = Path.isAncestor(path, start.path) ? start : Editor.start(editor, path);
          var text = Editor.string(editor, {
            anchor: s,
            focus: e
          });
          string = reverse ? esrever.reverse(text) : text;
          isNewBlock = true;
        }
      }

      if (Text.isText(node)) {
        var isFirst = Path.equals(path, first.path);
        available = node.text.length;
        offset = reverse ? available : 0;

        if (isFirst) {
          available = reverse ? first.offset : available - first.offset;
          offset = first.offset;
        }

        if (isFirst || isNewBlock || unit === 'offset') {
          yield {
            path,
            offset
          };
        }

        while (true) {
          // If there's no more string, continue to the next block.
          if (string === '') {
            break;
          } else {
            advance();
          } // If the available space hasn't overflow, we have another point to
          // yield in the current text node.


          if (available >= 0) {
            yield {
              path,
              offset
            };
          } else {
            break;
          }
        }

        isNewBlock = false;
      }
    }
  },

  /**
   * Get the matching node in the branch of the document before a location.
   */
  previous(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      mode = 'lowest',
      voids = false
    } = options;
    var {
      match,
      at = editor.selection
    } = options;

    if (!at) {
      return;
    }

    var [, from] = Editor.first(editor, at);
    var [, to] = Editor.first(editor, []);
    var span = [from, to];

    if (Path.isPath(at) && at.length === 0) {
      throw new Error("Cannot get the previous node from the root node!");
    }

    if (match == null) {
      if (Path.isPath(at)) {
        var [parent] = Editor.parent(editor, at);

        match = n => parent.children.includes(n);
      } else {
        match = () => true;
      }
    }

    var [, previous] = Editor.nodes(editor, {
      reverse: true,
      at: span,
      match,
      mode,
      voids
    });
    return previous;
  },

  /**
   * Get a range of a location.
   */
  range(editor, at, to) {
    if (Range.isRange(at) && !to) {
      return at;
    }

    var start = Editor.start(editor, at);
    var end = Editor.end(editor, to || at);
    return {
      anchor: start,
      focus: end
    };
  },

  /**
   * Create a mutable ref for a `Range` object, which will stay in sync as new
   * operations are applied to the editor.
   */
  rangeRef(editor, range) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var {
      affinity = 'forward'
    } = options;
    var ref = {
      current: range,
      affinity,

      unref() {
        var {
          current
        } = ref;
        var rangeRefs = Editor.rangeRefs(editor);
        rangeRefs.delete(ref);
        ref.current = null;
        return current;
      }

    };
    var refs = Editor.rangeRefs(editor);
    refs.add(ref);
    return ref;
  },

  /**
   * Get the set of currently tracked range refs of the editor.
   */
  rangeRefs(editor) {
    var refs = RANGE_REFS.get(editor);

    if (!refs) {
      refs = new Set();
      RANGE_REFS.set(editor, refs);
    }

    return refs;
  },

  /**
   * Remove a custom property from all of the leaf text nodes in the current
   * selection.
   *
   * If the selection is currently collapsed, the removal will be stored on
   * `editor.marks` and applied to the text inserted next.
   */
  removeMark(editor, key) {
    editor.removeMark(key);
  },

  /**
   * Get the start point of a location.
   */
  start(editor, at) {
    return Editor.point(editor, at, {
      edge: 'start'
    });
  },

  /**
   * Get the text string content of a location.
   *
   * Note: the text of void nodes is presumed to be an empty string, regardless
   * of what their actual content is.
   */
  string(editor, at) {
    var range = Editor.range(editor, at);
    var [start, end] = Range.edges(range);
    var text = '';

    for (var [node, path] of Editor.nodes(editor, {
      at: range,
      match: Text.isText
    })) {
      var t = node.text;

      if (Path.equals(path, end.path)) {
        t = t.slice(0, end.offset);
      }

      if (Path.equals(path, start.path)) {
        t = t.slice(start.offset);
      }

      text += t;
    }

    return text;
  },

  /**
   * Transform the editor by an operation.
   */
  transform(editor, op) {
    editor.children = immer_1.createDraft(editor.children);
    var selection = editor.selection && immer_1.createDraft(editor.selection);

    switch (op.type) {
      case 'insert_node':
        {
          var {
            path,
            node
          } = op;
          var parent = Node.parent(editor, path);
          var index = path[path.length - 1];
          parent.children.splice(index, 0, node);

          if (selection) {
            for (var [point, key] of Range.points(selection)) {
              selection[key] = Point.transform(point, op);
            }
          }

          break;
        }

      case 'insert_text':
        {
          var {
            path: _path,
            offset,
            text
          } = op;

          var _node2 = Node.leaf(editor, _path);

          var before = _node2.text.slice(0, offset);

          var after = _node2.text.slice(offset);

          _node2.text = before + text + after;

          if (selection) {
            for (var [_point, _key] of Range.points(selection)) {
              selection[_key] = Point.transform(_point, op);
            }
          }

          break;
        }

      case 'merge_node':
        {
          var {
            path: _path2
          } = op;

          var _node3 = Node.get(editor, _path2);

          var prevPath = Path.previous(_path2);
          var prev = Node.get(editor, prevPath);

          var _parent = Node.parent(editor, _path2);

          var _index = _path2[_path2.length - 1];

          if (Text.isText(_node3) && Text.isText(prev)) {
            prev.text += _node3.text;
          } else if (!Text.isText(_node3) && !Text.isText(prev)) {
            prev.children.push(..._node3.children);
          } else {
            throw new Error("Cannot apply a \"merge_node\" operation at path [".concat(_path2, "] to nodes of different interaces: ").concat(_node3, " ").concat(prev));
          }

          _parent.children.splice(_index, 1);

          if (selection) {
            for (var [_point2, _key2] of Range.points(selection)) {
              selection[_key2] = Point.transform(_point2, op);
            }
          }

          break;
        }

      case 'move_node':
        {
          var {
            path: _path3,
            newPath
          } = op;

          if (Path.isAncestor(_path3, newPath)) {
            throw new Error("Cannot move a path [".concat(_path3, "] to new path [").concat(newPath, "] because the destination is inside itself."));
          }

          var _node4 = Node.get(editor, _path3);

          var _parent2 = Node.parent(editor, _path3);

          var _index2 = _path3[_path3.length - 1]; // This is tricky, but since the `path` and `newPath` both refer to
          // the same snapshot in time, there's a mismatch. After either
          // removing the original position, the second step's path can be out
          // of date. So instead of using the `op.newPath` directly, we
          // transform `op.path` to ascertain what the `newPath` would be after
          // the operation was applied.

          _parent2.children.splice(_index2, 1);

          var truePath = Path.transform(_path3, op);
          var newParent = Node.get(editor, Path.parent(truePath));
          var newIndex = truePath[truePath.length - 1];
          newParent.children.splice(newIndex, 0, _node4);

          if (selection) {
            for (var [_point3, _key3] of Range.points(selection)) {
              selection[_key3] = Point.transform(_point3, op);
            }
          }

          break;
        }

      case 'remove_node':
        {
          var {
            path: _path4
          } = op;
          var _index3 = _path4[_path4.length - 1];

          var _parent3 = Node.parent(editor, _path4);

          _parent3.children.splice(_index3, 1); // Transform all of the points in the value, but if the point was in the
          // node that was removed we need to update the range or remove it.


          if (selection) {
            for (var [_point4, _key4] of Range.points(selection)) {
              var result = Point.transform(_point4, op);

              if (selection != null && result != null) {
                selection[_key4] = result;
              } else {
                var _prev = void 0;

                var next = void 0;

                for (var [n, p] of Node.texts(editor)) {
                  if (Path.compare(p, _path4) === -1) {
                    _prev = [n, p];
                  } else {
                    next = [n, p];
                    break;
                  }
                }

                if (_prev) {
                  _point4.path = _prev[1];
                  _point4.offset = _prev[0].text.length;
                } else if (next) {
                  _point4.path = next[1];
                  _point4.offset = 0;
                } else {
                  selection = null;
                }
              }
            }
          }

          break;
        }

      case 'remove_text':
        {
          var {
            path: _path5,
            offset: _offset,
            text: _text2
          } = op;

          var _node5 = Node.leaf(editor, _path5);

          var _before = _node5.text.slice(0, _offset);

          var _after = _node5.text.slice(_offset + _text2.length);

          _node5.text = _before + _after;

          if (selection) {
            for (var [_point5, _key5] of Range.points(selection)) {
              selection[_key5] = Point.transform(_point5, op);
            }
          }

          break;
        }

      case 'set_node':
        {
          var {
            path: _path6,
            newProperties
          } = op;

          if (_path6.length === 0) {
            throw new Error("Cannot set properties on the root node!");
          }

          var _node6 = Node.get(editor, _path6);

          for (var _key6 in newProperties) {
            if (_key6 === 'children' || _key6 === 'text') {
              throw new Error("Cannot set the \"".concat(_key6, "\" property of nodes!"));
            }

            var value = newProperties[_key6];

            if (value == null) {
              delete _node6[_key6];
            } else {
              _node6[_key6] = value;
            }
          }

          break;
        }

      case 'set_selection':
        {
          var {
            newProperties: _newProperties
          } = op;

          if (_newProperties == null) {
            selection = _newProperties;
          } else if (selection == null) {
            if (!Range.isRange(_newProperties)) {
              throw new Error("Cannot apply an incomplete \"set_selection\" operation properties ".concat(JSON.stringify(_newProperties), " when there is no current selection."));
            }

            selection = _newProperties;
          } else {
            Object.assign(selection, _newProperties);
          }

          break;
        }

      case 'split_node':
        {
          var {
            path: _path7,
            position,
            properties
          } = op;

          if (_path7.length === 0) {
            throw new Error("Cannot apply a \"split_node\" operation at path [".concat(_path7, "] because the root node cannot be split."));
          }

          var _node7 = Node.get(editor, _path7);

          var _parent4 = Node.parent(editor, _path7);

          var _index4 = _path7[_path7.length - 1];
          var newNode;

          if (Text.isText(_node7)) {
            var _before2 = _node7.text.slice(0, position);

            var _after2 = _node7.text.slice(position);

            _node7.text = _before2;
            newNode = _objectSpread$1({}, _node7, {}, properties, {
              text: _after2
            });
          } else {
            var _before3 = _node7.children.slice(0, position);

            var _after3 = _node7.children.slice(position);

            _node7.children = _before3;
            newNode = _objectSpread$1({}, _node7, {}, properties, {
              children: _after3
            });
          }

          _parent4.children.splice(_index4 + 1, 0, newNode);

          if (selection) {
            for (var [_point6, _key7] of Range.points(selection)) {
              selection[_key7] = Point.transform(_point6, op);
            }
          }

          break;
        }
    }

    editor.children = immer_1.finishDraft(editor.children);

    if (selection) {
      editor.selection = immer_1.isDraft(selection) ? immer_1.finishDraft(selection) : selection;
    } else {
      editor.selection = null;
    }
  },

  /**
   * Convert a range into a non-hanging one.
   */
  unhangRange(editor, range) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var {
      voids = false
    } = options;
    var [start, end] = Range.edges(range); // PERF: exit early if we can guarantee that the range isn't hanging.

    if (start.offset !== 0 || end.offset !== 0 || Range.isCollapsed(range)) {
      return range;
    }

    var endBlock = Editor.above(editor, {
      at: end,
      match: n => Editor.isBlock(editor, n)
    });
    var blockPath = endBlock ? endBlock[1] : [];
    var first = Editor.start(editor, []);
    var before = {
      anchor: first,
      focus: end
    };
    var skip = true;

    for (var [node, path] of Editor.nodes(editor, {
      at: before,
      match: Text.isText,
      reverse: true,
      voids
    })) {
      if (skip) {
        skip = false;
        continue;
      }

      if (node.text !== '' || Path.isBefore(path, blockPath)) {
        end = {
          path,
          offset: node.text.length
        };
        break;
      }
    }

    return {
      anchor: start,
      focus: end
    };
  },

  /**
   * Match a void node in the current branch of the editor.
   */
  void(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    return Editor.above(editor, _objectSpread$1({}, options, {
      match: n => Editor.isVoid(editor, n)
    }));
  },

  /**
   * Call a function, deferring normalization until after it completes.
   */
  withoutNormalizing(editor, fn) {
    var value = Editor.isNormalizing(editor);
    NORMALIZING.set(editor, false);
    fn();
    NORMALIZING.set(editor, value);
    Editor.normalize(editor);
  }

};

var Element = {
  /**
   * Check if a value implements the `Element` interface.
   */
  isElement(value) {
    return isPlainObject(value) && Node.isNodeList(value.children) && !Editor.isEditor(value);
  },

  /**
   * Check if a value is an array of `Element` objects.
   */
  isElementList(value) {
    return Array.isArray(value) && (value.length === 0 || Element.isElement(value[0]));
  },

  /**
   * Check if an element matches set of properties.
   *
   * Note: this checks custom properties, and it does not ensure that any
   * children are equivalent.
   */
  matches(element, props) {
    for (var key in props) {
      if (key === 'children') {
        continue;
      }

      if (element[key] !== props[key]) {
        return false;
      }
    }

    return true;
  }

};

var Location = {
  /**
   * Check if a value implements the `Location` interface.
   */
  isLocation(value) {
    return Path.isPath(value) || Point.isPoint(value) || Range.isRange(value);
  }

};
var Span = {
  /**
   * Check if a value implements the `Span` interface.
   */
  isSpan(value) {
    return Array.isArray(value) && value.length === 2 && value.every(Path.isPath);
  }

};

var Node = {
  /**
   * Get the node at a specific path, asserting that it's an ancestor node.
   */
  ancestor(root, path) {
    var node = Node.get(root, path);

    if (Text.isText(node)) {
      throw new Error("Cannot get the ancestor node at path [".concat(path, "] because it refers to a text node instead: ").concat(node));
    }

    return node;
  },

  /**
   * Return an iterable of all the ancestor nodes above a specific path.
   *
   * By default the order is bottom-up, from lowest to highest ancestor in
   * the tree, but you can pass the `reverse: true` option to go top-down.
   */
  *ancestors(root, path) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

    for (var p of Path.ancestors(path, options)) {
      var n = Node.ancestor(root, p);
      var entry = [n, p];
      yield entry;
    }
  },

  /**
   * Get the child of a node at a specific index.
   */
  child(root, index) {
    if (Text.isText(root)) {
      throw new Error("Cannot get the child of a text node: ".concat(JSON.stringify(root)));
    }

    var c = root.children[index];

    if (c == null) {
      throw new Error("Cannot get child at index `".concat(index, "` in node: ").concat(JSON.stringify(root)));
    }

    return c;
  },

  /**
   * Iterate over the children of a node at a specific path.
   */
  *children(root, path) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var {
      reverse = false
    } = options;
    var ancestor = Node.ancestor(root, path);
    var {
      children
    } = ancestor;
    var index = reverse ? children.length - 1 : 0;

    while (reverse ? index >= 0 : index < children.length) {
      var child = Node.child(ancestor, index);
      var childPath = path.concat(index);
      yield [child, childPath];
      index = reverse ? index - 1 : index + 1;
    }
  },

  /**
   * Get an entry for the common ancesetor node of two paths.
   */
  common(root, path, another) {
    var p = Path.common(path, another);
    var n = Node.get(root, p);
    return [n, p];
  },

  /**
   * Get the node at a specific path, asserting that it's a descendant node.
   */
  descendant(root, path) {
    var node = Node.get(root, path);

    if (Editor.isEditor(node)) {
      throw new Error("Cannot get the descendant node at path [".concat(path, "] because it refers to the root editor node instead: ").concat(node));
    }

    return node;
  },

  /**
   * Return an iterable of all the descendant node entries inside a root node.
   */
  *descendants(root) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    for (var [node, path] of Node.nodes(root, options)) {
      if (path.length !== 0) {
        // NOTE: we have to coerce here because checking the path's length does
        // guarantee that `node` is not a `Editor`, but TypeScript doesn't know.
        yield [node, path];
      }
    }
  },

  /**
   * Return an iterable of all the element nodes inside a root node. Each iteration
   * will return an `ElementEntry` tuple consisting of `[Element, Path]`. If the
   * root node is an element it will be included in the iteration as well.
   */
  *elements(root) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    for (var [node, path] of Node.nodes(root, options)) {
      if (Element.isElement(node)) {
        yield [node, path];
      }
    }
  },

  /**
   * Get the first node entry in a root node from a path.
   */
  first(root, path) {
    var p = path.slice();
    var n = Node.get(root, p);

    while (n) {
      if (Text.isText(n) || n.children.length === 0) {
        break;
      } else {
        n = n.children[0];
        p.push(0);
      }
    }

    return [n, p];
  },

  /**
   * Get the sliced fragment represented by a range inside a root node.
   */
  fragment(root, range) {
    if (Text.isText(root)) {
      throw new Error("Cannot get a fragment starting from a root text node: ".concat(JSON.stringify(root)));
    }

    var newRoot = immer_1.produce(root, r => {
      var [start, end] = Range.edges(range);
      var iterable = Node.nodes(r, {
        reverse: true,
        pass: (_ref) => {
          var [, path] = _ref;
          return !Range.includes(range, path);
        }
      });

      for (var [, path] of iterable) {
        if (!Range.includes(range, path)) {
          var parent = Node.parent(r, path);
          var index = path[path.length - 1];
          parent.children.splice(index, 1);
        }

        if (Path.equals(path, end.path)) {
          var leaf = Node.leaf(r, path);
          leaf.text = leaf.text.slice(0, end.offset);
        }

        if (Path.equals(path, start.path)) {
          var _leaf = Node.leaf(r, path);

          _leaf.text = _leaf.text.slice(start.offset);
        }
      }

      delete r.selection;
    });
    return newRoot.children;
  },

  /**
   * Get the descendant node referred to by a specific path. If the path is an
   * empty array, it refers to the root node itself.
   */
  get(root, path) {
    var node = root;

    for (var i = 0; i < path.length; i++) {
      var p = path[i];

      if (Text.isText(node) || !node.children[p]) {
        throw new Error("Cannot find a descendant at path [".concat(path, "] in node: ").concat(JSON.stringify(root)));
      }

      node = node.children[p];
    }

    return node;
  },

  /**
   * Check if a descendant node exists at a specific path.
   */
  has(root, path) {
    var node = root;

    for (var i = 0; i < path.length; i++) {
      var p = path[i];

      if (Text.isText(node) || !node.children[p]) {
        return false;
      }

      node = node.children[p];
    }

    return true;
  },

  /**
   * Check if a value implements the `Node` interface.
   */
  isNode(value) {
    return Text.isText(value) || Element.isElement(value) || Editor.isEditor(value);
  },

  /**
   * Check if a value is a list of `Node` objects.
   */
  isNodeList(value) {
    return Array.isArray(value) && (value.length === 0 || Node.isNode(value[0]));
  },

  /**
   * Get the lash node entry in a root node from a path.
   */
  last(root, path) {
    var p = path.slice();
    var n = Node.get(root, p);

    while (n) {
      if (Text.isText(n) || n.children.length === 0) {
        break;
      } else {
        var i = n.children.length - 1;
        n = n.children[i];
        p.push(i);
      }
    }

    return [n, p];
  },

  /**
   * Get the node at a specific path, ensuring it's a leaf text node.
   */
  leaf(root, path) {
    var node = Node.get(root, path);

    if (!Text.isText(node)) {
      throw new Error("Cannot get the leaf node at path [".concat(path, "] because it refers to a non-leaf node: ").concat(node));
    }

    return node;
  },

  /**
   * Return an iterable of the in a branch of the tree, from a specific path.
   *
   * By default the order is top-down, from lowest to highest node in the tree,
   * but you can pass the `reverse: true` option to go bottom-up.
   */
  *levels(root, path) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

    for (var p of Path.levels(path, options)) {
      var n = Node.get(root, p);
      yield [n, p];
    }
  },

  /**
   * Check if a node matches a set of props.
   */
  matches(node, props) {
    return Element.isElement(node) && Element.matches(node, props) || Text.isText(node) && Text.matches(node, props);
  },

  /**
   * Return an iterable of all the node entries of a root node. Each entry is
   * returned as a `[Node, Path]` tuple, with the path referring to the node's
   * position inside the root node.
   */
  *nodes(root) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      pass,
      reverse = false
    } = options;
    var {
      from = [],
      to
    } = options;
    var visited = new Set();
    var p = [];
    var n = root;

    while (true) {
      if (to && (reverse ? Path.isBefore(p, to) : Path.isAfter(p, to))) {
        break;
      }

      if (!visited.has(n)) {
        yield [n, p];
      } // If we're allowed to go downward and we haven't decsended yet, do.


      if (!visited.has(n) && !Text.isText(n) && n.children.length !== 0 && (pass == null || pass([n, p]) === false)) {
        visited.add(n);
        var nextIndex = reverse ? n.children.length - 1 : 0;

        if (Path.isAncestor(p, from)) {
          nextIndex = from[p.length];
        }

        p = p.concat(nextIndex);
        n = Node.get(root, p);
        continue;
      } // If we're at the root and we can't go down, we're done.


      if (p.length === 0) {
        break;
      } // If we're going forward...


      if (!reverse) {
        var newPath = Path.next(p);

        if (Node.has(root, newPath)) {
          p = newPath;
          n = Node.get(root, p);
          continue;
        }
      } // If we're going backward...


      if (reverse && p[p.length - 1] !== 0) {
        var _newPath = Path.previous(p);

        p = _newPath;
        n = Node.get(root, p);
        continue;
      } // Otherwise we're going upward...


      p = Path.parent(p);
      n = Node.get(root, p);
      visited.add(n);
    }
  },

  /**
   * Get the parent of a node at a specific path.
   */
  parent(root, path) {
    var parentPath = Path.parent(path);
    var p = Node.get(root, parentPath);

    if (Text.isText(p)) {
      throw new Error("Cannot get the parent of path [".concat(path, "] because it does not exist in the root."));
    }

    return p;
  },

  /**
   * Get the concatenated text string of a node's content.
   *
   * Note that this will not include spaces or line breaks between block nodes.
   * It is not a user-facing string, but a string for performing offset-related
   * computations for a node.
   */
  string(node) {
    if (Text.isText(node)) {
      return node.text;
    } else {
      return node.children.map(Node.string).join('');
    }
  },

  /**
   * Return an iterable of all leaf text nodes in a root node.
   */
  *texts(root) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    for (var [node, path] of Node.nodes(root, options)) {
      if (Text.isText(node)) {
        yield [node, path];
      }
    }
  }

};

function ownKeys$2(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread$2(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$2(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$2(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
var Operation = {
  /**
   * Check of a value is a `NodeOperation` object.
   */
  isNodeOperation(value) {
    return Operation.isOperation(value) && value.type.endsWith('_node');
  },

  /**
   * Check of a value is an `Operation` object.
   */
  isOperation(value) {
    if (!isPlainObject(value)) {
      return false;
    }

    switch (value.type) {
      case 'insert_node':
        return Path.isPath(value.path) && Node.isNode(value.node);

      case 'insert_text':
        return typeof value.offset === 'number' && typeof value.text === 'string' && Path.isPath(value.path);

      case 'merge_node':
        return typeof value.position === 'number' && (typeof value.target === 'number' || value.target === null) && Path.isPath(value.path) && isPlainObject(value.properties);

      case 'move_node':
        return Path.isPath(value.path) && Path.isPath(value.newPath);

      case 'remove_node':
        return Path.isPath(value.path) && Node.isNode(value.node);

      case 'remove_text':
        return typeof value.offset === 'number' && typeof value.text === 'string' && Path.isPath(value.path);

      case 'set_node':
        return Path.isPath(value.path) && isPlainObject(value.properties) && isPlainObject(value.newProperties);

      case 'set_selection':
        return value.properties === null && Range.isRange(value.newProperties) || value.newProperties === null && Range.isRange(value.properties) || isPlainObject(value.properties) && isPlainObject(value.newProperties);

      case 'split_node':
        return Path.isPath(value.path) && typeof value.position === 'number' && (typeof value.target === 'number' || value.target === null) && isPlainObject(value.properties);

      default:
        return false;
    }
  },

  /**
   * Check if a value is a list of `Operation` objects.
   */
  isOperationList(value) {
    return Array.isArray(value) && (value.length === 0 || Operation.isOperation(value[0]));
  },

  /**
   * Check of a value is a `SelectionOperation` object.
   */
  isSelectionOperation(value) {
    return Operation.isOperation(value) && value.type.endsWith('_selection');
  },

  /**
   * Check of a value is a `TextOperation` object.
   */
  isTextOperation(value) {
    return Operation.isOperation(value) && value.type.endsWith('_text');
  },

  /**
   * Invert an operation, returning a new operation that will exactly undo the
   * original when applied.
   */
  inverse(op) {
    switch (op.type) {
      case 'insert_node':
        {
          return _objectSpread$2({}, op, {
            type: 'remove_node'
          });
        }

      case 'insert_text':
        {
          return _objectSpread$2({}, op, {
            type: 'remove_text'
          });
        }

      case 'merge_node':
        {
          return _objectSpread$2({}, op, {
            type: 'split_node',
            path: Path.previous(op.path)
          });
        }

      case 'move_node':
        {
          var {
            newPath,
            path
          } = op; // PERF: in this case the move operation is a no-op anyways.

          if (Path.equals(newPath, path)) {
            return op;
          } // We need to get the original path here, but sometimes the `newPath`
          // is a younger sibling of (or ends before) the original, and this
          // accounts for it.


          var inversePath = Path.transform(path, op);
          var inverseNewPath = Path.transform(Path.next(path), op);
          return _objectSpread$2({}, op, {
            path: inversePath,
            newPath: inverseNewPath
          });
        }

      case 'remove_node':
        {
          return _objectSpread$2({}, op, {
            type: 'insert_node'
          });
        }

      case 'remove_text':
        {
          return _objectSpread$2({}, op, {
            type: 'insert_text'
          });
        }

      case 'set_node':
        {
          var {
            properties,
            newProperties
          } = op;
          return _objectSpread$2({}, op, {
            properties: newProperties,
            newProperties: properties
          });
        }

      case 'set_selection':
        {
          var {
            properties: _properties,
            newProperties: _newProperties
          } = op;

          if (_properties == null) {
            return _objectSpread$2({}, op, {
              properties: _newProperties,
              newProperties: null
            });
          } else if (_newProperties == null) {
            return _objectSpread$2({}, op, {
              properties: null,
              newProperties: _properties
            });
          } else {
            return _objectSpread$2({}, op, {
              properties: _newProperties,
              newProperties: _properties
            });
          }
        }

      case 'split_node':
        {
          return _objectSpread$2({}, op, {
            type: 'merge_node',
            path: Path.next(op.path)
          });
        }
    }
  }

};

var Path = {
  /**
   * Get a list of ancestor paths for a given path.
   *
   * The paths are sorted from deepest to shallowest ancestor. However, if the
   * `reverse: true` option is passed, they are reversed.
   */
  ancestors(path) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      reverse = false
    } = options;
    var paths = Path.levels(path, options);

    if (reverse) {
      paths = paths.slice(1);
    } else {
      paths = paths.slice(0, -1);
    }

    return paths;
  },

  /**
   * Get the common ancestor path of two paths.
   */
  common(path, another) {
    var common = [];

    for (var i = 0; i < path.length && i < another.length; i++) {
      var av = path[i];
      var bv = another[i];

      if (av !== bv) {
        break;
      }

      common.push(av);
    }

    return common;
  },

  /**
   * Compare a path to another, returning an integer indicating whether the path
   * was before, at, or after the other.
   *
   * Note: Two paths of unequal length can still receive a `0` result if one is
   * directly above or below the other. If you want exact matching, use
   * [[Path.equals]] instead.
   */
  compare(path, another) {
    var min = Math.min(path.length, another.length);

    for (var i = 0; i < min; i++) {
      if (path[i] < another[i]) return -1;
      if (path[i] > another[i]) return 1;
    }

    return 0;
  },

  /**
   * Check if a path ends after one of the indexes in another.
   */
  endsAfter(path, another) {
    var i = path.length - 1;
    var as = path.slice(0, i);
    var bs = another.slice(0, i);
    var av = path[i];
    var bv = another[i];
    return Path.equals(as, bs) && av > bv;
  },

  /**
   * Check if a path ends at one of the indexes in another.
   */
  endsAt(path, another) {
    var i = path.length;
    var as = path.slice(0, i);
    var bs = another.slice(0, i);
    return Path.equals(as, bs);
  },

  /**
   * Check if a path ends before one of the indexes in another.
   */
  endsBefore(path, another) {
    var i = path.length - 1;
    var as = path.slice(0, i);
    var bs = another.slice(0, i);
    var av = path[i];
    var bv = another[i];
    return Path.equals(as, bs) && av < bv;
  },

  /**
   * Check if a path is exactly equal to another.
   */
  equals(path, another) {
    return path.length === another.length && path.every((n, i) => n === another[i]);
  },

  /**
   * Check if a path is after another.
   */
  isAfter(path, another) {
    return Path.compare(path, another) === 1;
  },

  /**
   * Check if a path is an ancestor of another.
   */
  isAncestor(path, another) {
    return path.length < another.length && Path.compare(path, another) === 0;
  },

  /**
   * Check if a path is before another.
   */
  isBefore(path, another) {
    return Path.compare(path, another) === -1;
  },

  /**
   * Check if a path is a child of another.
   */
  isChild(path, another) {
    return path.length === another.length + 1 && Path.compare(path, another) === 0;
  },

  /**
   * Check if a path is equal to or an ancestor of another.
   */
  isCommon(path, another) {
    return path.length <= another.length && Path.compare(path, another) === 0;
  },

  /**
   * Check if a path is a descendant of another.
   */
  isDescendant(path, another) {
    return path.length > another.length && Path.compare(path, another) === 0;
  },

  /**
   * Check if a path is the parent of another.
   */
  isParent(path, another) {
    return path.length + 1 === another.length && Path.compare(path, another) === 0;
  },

  /**
   * Check is a value implements the `Path` interface.
   */
  isPath(value) {
    return Array.isArray(value) && (value.length === 0 || typeof value[0] === 'number');
  },

  /**
   * Check if a path is a sibling of another.
   */
  isSibling(path, another) {
    if (path.length !== another.length) {
      return false;
    }

    var as = path.slice(0, -1);
    var bs = another.slice(0, -1);
    var al = path[path.length - 1];
    var bl = another[another.length - 1];
    return al !== bl && Path.equals(as, bs);
  },

  /**
   * Get a list of paths at every level down to a path. Note: this is the same
   * as `Path.ancestors`, but including the path itself.
   *
   * The paths are sorted from shallowest to deepest. However, if the `reverse:
   * true` option is passed, they are reversed.
   */
  levels(path) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      reverse = false
    } = options;
    var list = [];

    for (var i = 0; i <= path.length; i++) {
      list.push(path.slice(0, i));
    }

    if (reverse) {
      list.reverse();
    }

    return list;
  },

  /**
   * Given a path, get the path to the next sibling node.
   */
  next(path) {
    if (path.length === 0) {
      throw new Error("Cannot get the next path of a root path [".concat(path, "], because it has no next index."));
    }

    var last = path[path.length - 1];
    return path.slice(0, -1).concat(last + 1);
  },

  /**
   * Given a path, return a new path referring to the parent node above it.
   */
  parent(path) {
    if (path.length === 0) {
      throw new Error("Cannot get the parent path of the root path [".concat(path, "]."));
    }

    return path.slice(0, -1);
  },

  /**
   * Given a path, get the path to the previous sibling node.
   */
  previous(path) {
    if (path.length === 0) {
      throw new Error("Cannot get the previous path of a root path [".concat(path, "], because it has no previous index."));
    }

    var last = path[path.length - 1];

    if (last <= 0) {
      throw new Error("Cannot get the previous path of a first child path [".concat(path, "] because it would result in a negative index."));
    }

    return path.slice(0, -1).concat(last - 1);
  },

  /**
   * Get a path relative to an ancestor.
   */
  relative(path, ancestor) {
    if (!Path.isAncestor(ancestor, path) && !Path.equals(path, ancestor)) {
      throw new Error("Cannot get the relative path of [".concat(path, "] inside ancestor [").concat(ancestor, "], because it is not above or equal to the path."));
    }

    return path.slice(ancestor.length);
  },

  /**
   * Transform a path by an operation.
   */
  transform(path, operation) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    return immer_1.produce(path, p => {
      var {
        affinity = 'forward'
      } = options; // PERF: Exit early if the operation is guaranteed not to have an effect.

      if (path.length === 0) {
        return;
      }

      switch (operation.type) {
        case 'insert_node':
          {
            var {
              path: op
            } = operation;

            if (Path.equals(op, p) || Path.endsBefore(op, p) || Path.isAncestor(op, p)) {
              p[op.length - 1] += 1;
            }

            break;
          }

        case 'remove_node':
          {
            var {
              path: _op
            } = operation;

            if (Path.equals(_op, p) || Path.isAncestor(_op, p)) {
              return null;
            } else if (Path.endsBefore(_op, p)) {
              p[_op.length - 1] -= 1;
            }

            break;
          }

        case 'merge_node':
          {
            var {
              path: _op2,
              position
            } = operation;

            if (Path.equals(_op2, p) || Path.endsBefore(_op2, p)) {
              p[_op2.length - 1] -= 1;
            } else if (Path.isAncestor(_op2, p)) {
              p[_op2.length - 1] -= 1;
              p[_op2.length] += position;
            }

            break;
          }

        case 'split_node':
          {
            var {
              path: _op3,
              position: _position
            } = operation;

            if (Path.equals(_op3, p)) {
              if (affinity === 'forward') {
                p[p.length - 1] += 1;
              } else if (affinity === 'backward') ; else {
                return null;
              }
            } else if (Path.endsBefore(_op3, p)) {
              p[_op3.length - 1] += 1;
            } else if (Path.isAncestor(_op3, p) && path[_op3.length] >= _position) {
              p[_op3.length - 1] += 1;
              p[_op3.length] -= _position;
            }

            break;
          }

        case 'move_node':
          {
            var {
              path: _op4,
              newPath: onp
            } = operation; // If the old and new path are the same, it's a no-op.

            if (Path.equals(_op4, onp)) {
              return;
            }

            if (Path.isAncestor(_op4, p) || Path.equals(_op4, p)) {
              var copy = onp.slice();

              if (Path.endsBefore(_op4, onp) && _op4.length < onp.length) {
                var i = Math.min(onp.length, _op4.length) - 1;
                copy[i] -= 1;
              }

              return copy.concat(p.slice(_op4.length));
            } else if (Path.endsBefore(onp, p) || Path.equals(onp, p) || Path.isAncestor(onp, p)) {
              if (Path.endsBefore(_op4, p)) {
                p[_op4.length - 1] -= 1;
              }

              p[onp.length - 1] += 1;
            } else if (Path.endsBefore(_op4, p)) {
              if (Path.equals(onp, p)) {
                p[onp.length - 1] += 1;
              }

              p[_op4.length - 1] -= 1;
            }

            break;
          }
      }
    });
  }

};

var PathRef = {
  /**
   * Transform the path ref's current value by an operation.
   */
  transform(ref, op) {
    var {
      current,
      affinity
    } = ref;

    if (current == null) {
      return;
    }

    var path = Path.transform(current, op, {
      affinity
    });
    ref.current = path;

    if (path == null) {
      ref.unref();
    }
  }

};

function ownKeys$3(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread$3(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$3(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$3(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
var Point = {
  /**
   * Compare a point to another, returning an integer indicating whether the
   * point was before, at, or after the other.
   */
  compare(point, another) {
    var result = Path.compare(point.path, another.path);

    if (result === 0) {
      if (point.offset < another.offset) return -1;
      if (point.offset > another.offset) return 1;
      return 0;
    }

    return result;
  },

  /**
   * Check if a point is after another.
   */
  isAfter(point, another) {
    return Point.compare(point, another) === 1;
  },

  /**
   * Check if a point is before another.
   */
  isBefore(point, another) {
    return Point.compare(point, another) === -1;
  },

  /**
   * Check if a point is exactly equal to another.
   */
  equals(point, another) {
    // PERF: ensure the offsets are equal first since they are cheaper to check.
    return point.offset === another.offset && Path.equals(point.path, another.path);
  },

  /**
   * Check if a value implements the `Point` interface.
   */
  isPoint(value) {
    return isPlainObject(value) && typeof value.offset === 'number' && Path.isPath(value.path);
  },

  /**
   * Transform a point by an operation.
   */
  transform(point, op) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    return immer_1.produce(point, p => {
      var {
        affinity = 'forward'
      } = options;
      var {
        path,
        offset
      } = p;

      switch (op.type) {
        case 'insert_node':
        case 'move_node':
          {
            p.path = Path.transform(path, op, options);
            break;
          }

        case 'insert_text':
          {
            if (Path.equals(op.path, path) && op.offset <= offset) {
              p.offset += op.text.length;
            }

            break;
          }

        case 'merge_node':
          {
            if (Path.equals(op.path, path)) {
              p.offset += op.position;
            }

            p.path = Path.transform(path, op, options);
            break;
          }

        case 'remove_text':
          {
            if (Path.equals(op.path, path) && op.offset <= offset) {
              p.offset -= Math.min(offset - op.offset, op.text.length);
            }

            break;
          }

        case 'remove_node':
          {
            if (Path.equals(op.path, path) || Path.isAncestor(op.path, path)) {
              return null;
            }

            p.path = Path.transform(path, op, options);
            break;
          }

        case 'split_node':
          {
            if (Path.equals(op.path, path)) {
              if (op.position === offset && affinity == null) {
                return null;
              } else if (op.position < offset || op.position === offset && affinity === 'forward') {
                p.offset -= op.position;
                p.path = Path.transform(path, op, _objectSpread$3({}, options, {
                  affinity: 'forward'
                }));
              }
            } else {
              p.path = Path.transform(path, op, options);
            }

            break;
          }
      }
    });
  }

};

var PointRef = {
  /**
   * Transform the point ref's current value by an operation.
   */
  transform(ref, op) {
    var {
      current,
      affinity
    } = ref;

    if (current == null) {
      return;
    }

    var point = Point.transform(current, op, {
      affinity
    });
    ref.current = point;

    if (point == null) {
      ref.unref();
    }
  }

};

function ownKeys$4(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread$4(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$4(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$4(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
var Range = {
  /**
   * Get the start and end points of a range, in the order in which they appear
   * in the document.
   */
  edges(range) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      reverse = false
    } = options;
    var {
      anchor,
      focus
    } = range;
    return Range.isBackward(range) === reverse ? [anchor, focus] : [focus, anchor];
  },

  /**
   * Get the end point of a range.
   */
  end(range) {
    var [, end] = Range.edges(range);
    return end;
  },

  /**
   * Check if a range is exactly equal to another.
   */
  equals(range, another) {
    return Point.equals(range.anchor, another.anchor) && Point.equals(range.focus, another.focus);
  },

  /**
   * Check if a range includes a path, a point or part of another range.
   */
  includes(range, target) {
    if (Range.isRange(target)) {
      if (Range.includes(range, target.anchor) || Range.includes(range, target.focus)) {
        return true;
      }

      var [rs, re] = Range.edges(range);
      var [ts, te] = Range.edges(target);
      return Point.isBefore(rs, ts) && Point.isAfter(re, te);
    }

    var [start, end] = Range.edges(range);
    var isAfterStart = false;
    var isBeforeEnd = false;

    if (Point.isPoint(target)) {
      isAfterStart = Point.compare(target, start) >= 0;
      isBeforeEnd = Point.compare(target, end) <= 0;
    } else {
      isAfterStart = Path.compare(target, start.path) >= 0;
      isBeforeEnd = Path.compare(target, end.path) <= 0;
    }

    return isAfterStart && isBeforeEnd;
  },

  /**
   * Get the intersection of a range with another.
   */
  intersection(range, another) {
    var rest = _objectWithoutProperties(range, ["anchor", "focus"]);

    var [s1, e1] = Range.edges(range);
    var [s2, e2] = Range.edges(another);
    var start = Point.isBefore(s1, s2) ? s2 : s1;
    var end = Point.isBefore(e1, e2) ? e1 : e2;

    if (Point.isBefore(end, start)) {
      return null;
    } else {
      return _objectSpread$4({
        anchor: start,
        focus: end
      }, rest);
    }
  },

  /**
   * Check if a range is backward, meaning that its anchor point appears in the
   * document _after_ its focus point.
   */
  isBackward(range) {
    var {
      anchor,
      focus
    } = range;
    return Point.isAfter(anchor, focus);
  },

  /**
   * Check if a range is collapsed, meaning that both its anchor and focus
   * points refer to the exact same position in the document.
   */
  isCollapsed(range) {
    var {
      anchor,
      focus
    } = range;
    return Point.equals(anchor, focus);
  },

  /**
   * Check if a range is expanded.
   *
   * This is the opposite of [[Range.isCollapsed]] and is provided for legibility.
   */
  isExpanded(range) {
    return !Range.isCollapsed(range);
  },

  /**
   * Check if a range is forward.
   *
   * This is the opposite of [[Range.isBackward]] and is provided for legibility.
   */
  isForward(range) {
    return !Range.isBackward(range);
  },

  /**
   * Check if a value implements the [[Range]] interface.
   */
  isRange(value) {
    return isPlainObject(value) && Point.isPoint(value.anchor) && Point.isPoint(value.focus);
  },

  /**
   * Iterate through all of the point entries in a range.
   */
  *points(range) {
    yield [range.anchor, 'anchor'];
    yield [range.focus, 'focus'];
  },

  /**
   * Get the start point of a range.
   */
  start(range) {
    var [start] = Range.edges(range);
    return start;
  },

  /**
   * Transform a range by an operation.
   */
  transform(range, op, options) {
    var {
      affinity = 'inward'
    } = options;
    var affinityAnchor;
    var affinityFocus;

    if (affinity === 'inward') {
      if (Range.isForward(range)) {
        affinityAnchor = 'forward';
        affinityFocus = 'backward';
      } else {
        affinityAnchor = 'backward';
        affinityFocus = 'forward';
      }
    } else if (affinity === 'outward') {
      if (Range.isForward(range)) {
        affinityAnchor = 'backward';
        affinityFocus = 'forward';
      } else {
        affinityAnchor = 'forward';
        affinityFocus = 'backward';
      }
    } else {
      affinityAnchor = affinity;
      affinityFocus = affinity;
    }

    return immer_1.produce(range, r => {
      var anchor = Point.transform(r.anchor, op, {
        affinity: affinityAnchor
      });
      var focus = Point.transform(r.focus, op, {
        affinity: affinityFocus
      });

      if (!anchor || !focus) {
        return null;
      }

      r.anchor = anchor;
      r.focus = focus;
    });
  }

};

var RangeRef = {
  /**
   * Transform the range ref's current value by an operation.
   */
  transform(ref, op) {
    var {
      current,
      affinity
    } = ref;

    if (current == null) {
      return;
    }

    var path = Range.transform(current, op, {
      affinity
    });
    ref.current = path;

    if (path == null) {
      ref.unref();
    }
  }

};

function ownKeys$5(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread$5(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$5(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$5(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
var Text = {
  /**
   * Check if two text nodes are equal.
   */
  equals(text, another) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var {
      loose = false
    } = options;

    for (var key in text) {
      if (loose && key === 'text') {
        continue;
      }

      if (text[key] !== another[key]) {
        return false;
      }
    }

    for (var _key in another) {
      if (loose && _key === 'text') {
        continue;
      }

      if (text[_key] !== another[_key]) {
        return false;
      }
    }

    return true;
  },

  /**
   * Check if a value implements the `Text` interface.
   */
  isText(value) {
    return isPlainObject(value) && typeof value.text === 'string';
  },

  /**
   * Check if a value is a list of `Text` objects.
   */
  isTextList(value) {
    return Array.isArray(value) && (value.length === 0 || Text.isText(value[0]));
  },

  /**
   * Check if an text matches set of properties.
   *
   * Note: this is for matching custom properties, and it does not ensure that
   * the `text` property are two nodes equal.
   */
  matches(text, props) {
    for (var key in props) {
      if (key === 'text') {
        continue;
      }

      if (text[key] !== props[key]) {
        return false;
      }
    }

    return true;
  },

  /**
   * Get the leaves for a text node given decorations.
   */
  decorations(node, decorations) {
    var leaves = [_objectSpread$5({}, node)];

    for (var dec of decorations) {
      var rest = _objectWithoutProperties(dec, ["anchor", "focus"]);

      var [start, end] = Range.edges(dec);
      var next = [];
      var o = 0;

      for (var leaf of leaves) {
        var {
          length
        } = leaf.text;
        var offset = o;
        o += length; // If the range encompases the entire leaf, add the range.

        if (start.offset <= offset && end.offset >= offset + length) {
          Object.assign(leaf, rest);
          next.push(leaf);
          continue;
        } // If the range starts after the leaf, or ends before it, continue.


        if (start.offset > offset + length || end.offset < offset || end.offset === offset && offset !== 0) {
          next.push(leaf);
          continue;
        } // Otherwise we need to split the leaf, at the start, end, or both,
        // and add the range to the middle intersecting section. Do the end
        // split first since we don't need to update the offset that way.


        var middle = leaf;
        var before = void 0;
        var after = void 0;

        if (end.offset < offset + length) {
          var off = end.offset - offset;
          after = _objectSpread$5({}, middle, {
            text: middle.text.slice(off)
          });
          middle = _objectSpread$5({}, middle, {
            text: middle.text.slice(0, off)
          });
        }

        if (start.offset > offset) {
          var _off = start.offset - offset;

          before = _objectSpread$5({}, middle, {
            text: middle.text.slice(0, _off)
          });
          middle = _objectSpread$5({}, middle, {
            text: middle.text.slice(_off)
          });
        }

        Object.assign(middle, rest);

        if (before) {
          next.push(before);
        }

        next.push(middle);

        if (after) {
          next.push(after);
        }
      }

      leaves = next;
    }

    return leaves;
  }

};

function ownKeys$6(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread$6(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$6(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$6(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
var GeneralTransforms = {
  /**
   * Transform the editor by an operation.
   */
  transform(editor, op) {
    editor.children = immer_1.createDraft(editor.children);
    var selection = editor.selection && immer_1.createDraft(editor.selection);

    switch (op.type) {
      case 'insert_node':
        {
          var {
            path,
            node
          } = op;
          var parent = Node.parent(editor, path);
          var index = path[path.length - 1];
          parent.children.splice(index, 0, node);

          if (selection) {
            for (var [point, key] of Range.points(selection)) {
              selection[key] = Point.transform(point, op);
            }
          }

          break;
        }

      case 'insert_text':
        {
          var {
            path: _path,
            offset,
            text
          } = op;

          var _node = Node.leaf(editor, _path);

          var before = _node.text.slice(0, offset);

          var after = _node.text.slice(offset);

          _node.text = before + text + after;

          if (selection) {
            for (var [_point, _key] of Range.points(selection)) {
              selection[_key] = Point.transform(_point, op);
            }
          }

          break;
        }

      case 'merge_node':
        {
          var {
            path: _path2
          } = op;

          var _node2 = Node.get(editor, _path2);

          var prevPath = Path.previous(_path2);
          var prev = Node.get(editor, prevPath);

          var _parent = Node.parent(editor, _path2);

          var _index = _path2[_path2.length - 1];

          if (Text.isText(_node2) && Text.isText(prev)) {
            prev.text += _node2.text;
          } else if (!Text.isText(_node2) && !Text.isText(prev)) {
            prev.children.push(..._node2.children);
          } else {
            throw new Error("Cannot apply a \"merge_node\" operation at path [".concat(_path2, "] to nodes of different interaces: ").concat(_node2, " ").concat(prev));
          }

          _parent.children.splice(_index, 1);

          if (selection) {
            for (var [_point2, _key2] of Range.points(selection)) {
              selection[_key2] = Point.transform(_point2, op);
            }
          }

          break;
        }

      case 'move_node':
        {
          var {
            path: _path3,
            newPath
          } = op;

          if (Path.isAncestor(_path3, newPath)) {
            throw new Error("Cannot move a path [".concat(_path3, "] to new path [").concat(newPath, "] because the destination is inside itself."));
          }

          var _node3 = Node.get(editor, _path3);

          var _parent2 = Node.parent(editor, _path3);

          var _index2 = _path3[_path3.length - 1]; // This is tricky, but since the `path` and `newPath` both refer to
          // the same snapshot in time, there's a mismatch. After either
          // removing the original position, the second step's path can be out
          // of date. So instead of using the `op.newPath` directly, we
          // transform `op.path` to ascertain what the `newPath` would be after
          // the operation was applied.

          _parent2.children.splice(_index2, 1);

          var truePath = Path.transform(_path3, op);
          var newParent = Node.get(editor, Path.parent(truePath));
          var newIndex = truePath[truePath.length - 1];
          newParent.children.splice(newIndex, 0, _node3);

          if (selection) {
            for (var [_point3, _key3] of Range.points(selection)) {
              selection[_key3] = Point.transform(_point3, op);
            }
          }

          break;
        }

      case 'remove_node':
        {
          var {
            path: _path4
          } = op;
          var _index3 = _path4[_path4.length - 1];

          var _parent3 = Node.parent(editor, _path4);

          _parent3.children.splice(_index3, 1); // Transform all of the points in the value, but if the point was in the
          // node that was removed we need to update the range or remove it.


          if (selection) {
            for (var [_point4, _key4] of Range.points(selection)) {
              var result = Point.transform(_point4, op);

              if (selection != null && result != null) {
                selection[_key4] = result;
              } else {
                var _prev = void 0;

                var next = void 0;

                for (var [n, p] of Node.texts(editor)) {
                  if (Path.compare(p, _path4) === -1) {
                    _prev = [n, p];
                  } else {
                    next = [n, p];
                    break;
                  }
                }

                if (_prev) {
                  _point4.path = _prev[1];
                  _point4.offset = _prev[0].text.length;
                } else if (next) {
                  _point4.path = next[1];
                  _point4.offset = 0;
                } else {
                  selection = null;
                }
              }
            }
          }

          break;
        }

      case 'remove_text':
        {
          var {
            path: _path5,
            offset: _offset,
            text: _text
          } = op;

          var _node4 = Node.leaf(editor, _path5);

          var _before = _node4.text.slice(0, _offset);

          var _after = _node4.text.slice(_offset + _text.length);

          _node4.text = _before + _after;

          if (selection) {
            for (var [_point5, _key5] of Range.points(selection)) {
              selection[_key5] = Point.transform(_point5, op);
            }
          }

          break;
        }

      case 'set_node':
        {
          var {
            path: _path6,
            newProperties
          } = op;

          if (_path6.length === 0) {
            throw new Error("Cannot set properties on the root node!");
          }

          var _node5 = Node.get(editor, _path6);

          for (var _key6 in newProperties) {
            if (_key6 === 'children' || _key6 === 'text') {
              throw new Error("Cannot set the \"".concat(_key6, "\" property of nodes!"));
            }

            var value = newProperties[_key6];

            if (value == null) {
              delete _node5[_key6];
            } else {
              _node5[_key6] = value;
            }
          }

          break;
        }

      case 'set_selection':
        {
          var {
            newProperties: _newProperties
          } = op;

          if (_newProperties == null) {
            selection = _newProperties;
          } else if (selection == null) {
            if (!Range.isRange(_newProperties)) {
              throw new Error("Cannot apply an incomplete \"set_selection\" operation properties ".concat(JSON.stringify(_newProperties), " when there is no current selection."));
            }

            selection = _newProperties;
          } else {
            Object.assign(selection, _newProperties);
          }

          break;
        }

      case 'split_node':
        {
          var {
            path: _path7,
            position,
            properties
          } = op;

          if (_path7.length === 0) {
            throw new Error("Cannot apply a \"split_node\" operation at path [".concat(_path7, "] because the root node cannot be split."));
          }

          var _node6 = Node.get(editor, _path7);

          var _parent4 = Node.parent(editor, _path7);

          var _index4 = _path7[_path7.length - 1];
          var newNode;

          if (Text.isText(_node6)) {
            var _before2 = _node6.text.slice(0, position);

            var _after2 = _node6.text.slice(position);

            _node6.text = _before2;
            newNode = _objectSpread$6({}, _node6, {}, properties, {
              text: _after2
            });
          } else {
            var _before3 = _node6.children.slice(0, position);

            var _after3 = _node6.children.slice(position);

            _node6.children = _before3;
            newNode = _objectSpread$6({}, _node6, {}, properties, {
              children: _after3
            });
          }

          _parent4.children.splice(_index4 + 1, 0, newNode);

          if (selection) {
            for (var [_point6, _key7] of Range.points(selection)) {
              selection[_key7] = Point.transform(_point6, op);
            }
          }

          break;
        }
    }

    editor.children = immer_1.finishDraft(editor.children);

    if (selection) {
      editor.selection = immer_1.isDraft(selection) ? immer_1.finishDraft(selection) : selection;
    } else {
      editor.selection = null;
    }
  }

};

function ownKeys$7(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread$7(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$7(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$7(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
var NodeTransforms = {
  /**
   * Insert nodes at a specific location in the Editor.
   */
  insertNodes(editor, nodes) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    Editor.withoutNormalizing(editor, () => {
      var {
        hanging = false,
        voids = false,
        mode = 'lowest'
      } = options;
      var {
        at,
        match,
        select
      } = options;

      if (Node.isNode(nodes)) {
        nodes = [nodes];
      }

      if (nodes.length === 0) {
        return;
      }

      var [node] = nodes; // By default, use the selection as the target location. But if there is
      // no selection, insert at the end of the document since that is such a
      // common use case when inserting from a non-selected state.

      if (!at) {
        if (editor.selection) {
          at = editor.selection;
        } else if (editor.children.length > 0) {
          at = Editor.end(editor, []);
        } else {
          at = [0];
        }

        select = true;
      }

      if (select == null) {
        select = false;
      }

      if (Range.isRange(at)) {
        if (!hanging) {
          at = Editor.unhangRange(editor, at);
        }

        if (Range.isCollapsed(at)) {
          at = at.anchor;
        } else {
          var [, end] = Range.edges(at);
          var pointRef = Editor.pointRef(editor, end);
          Transforms.delete(editor, {
            at
          });
          at = pointRef.unref();
        }
      }

      if (Point.isPoint(at)) {
        if (match == null) {
          if (Text.isText(node)) {
            match = n => Text.isText(n);
          } else if (editor.isInline(node)) {
            match = n => Text.isText(n) || Editor.isInline(editor, n);
          } else {
            match = n => Editor.isBlock(editor, n);
          }
        }

        var [entry] = Editor.nodes(editor, {
          at: at.path,
          match,
          mode,
          voids
        });

        if (entry) {
          var [, _matchPath] = entry;
          var pathRef = Editor.pathRef(editor, _matchPath);
          var isAtEnd = Editor.isEnd(editor, at, _matchPath);
          Transforms.splitNodes(editor, {
            at,
            match,
            mode,
            voids
          });
          var path = pathRef.unref();
          at = isAtEnd ? Path.next(path) : path;
        } else {
          return;
        }
      }

      var parentPath = Path.parent(at);
      var index = at[at.length - 1];

      if (!voids && Editor.void(editor, {
        at: parentPath
      })) {
        return;
      }

      for (var _node of nodes) {
        var _path = parentPath.concat(index);

        index++;
        editor.apply({
          type: 'insert_node',
          path: _path,
          node: _node
        });
      }

      if (select) {
        var point = Editor.end(editor, at);

        if (point) {
          Transforms.select(editor, point);
        }
      }
    });
  },

  /**
   * Lift nodes at a specific location upwards in the document tree, splitting
   * their parent in two if necessary.
   */
  liftNodes(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    Editor.withoutNormalizing(editor, () => {
      var {
        at = editor.selection,
        mode = 'lowest',
        voids = false
      } = options;
      var {
        match
      } = options;

      if (match == null) {
        match = Path.isPath(at) ? matchPath(editor, at) : n => Editor.isBlock(editor, n);
      }

      if (!at) {
        return;
      }

      var matches = Editor.nodes(editor, {
        at,
        match,
        mode,
        voids
      });
      var pathRefs = Array.from(matches, (_ref) => {
        var [, p] = _ref;
        return Editor.pathRef(editor, p);
      });

      for (var pathRef of pathRefs) {
        var path = pathRef.unref();

        if (path.length < 2) {
          throw new Error("Cannot lift node at a path [".concat(path, "] because it has a depth of less than `2`."));
        }

        var [parent, parentPath] = Editor.node(editor, Path.parent(path));
        var index = path[path.length - 1];
        var {
          length
        } = parent.children;

        if (length === 1) {
          var toPath = Path.next(parentPath);
          Transforms.moveNodes(editor, {
            at: path,
            to: toPath,
            voids
          });
          Transforms.removeNodes(editor, {
            at: parentPath,
            voids
          });
        } else if (index === 0) {
          Transforms.moveNodes(editor, {
            at: path,
            to: parentPath,
            voids
          });
        } else if (index === length - 1) {
          var _toPath = Path.next(parentPath);

          Transforms.moveNodes(editor, {
            at: path,
            to: _toPath,
            voids
          });
        } else {
          var splitPath = Path.next(path);

          var _toPath2 = Path.next(parentPath);

          Transforms.splitNodes(editor, {
            at: splitPath,
            voids
          });
          Transforms.moveNodes(editor, {
            at: path,
            to: _toPath2,
            voids
          });
        }
      }
    });
  },

  /**
   * Merge a node at a location with the previous node of the same depth,
   * removing any empty containing nodes after the merge if necessary.
   */
  mergeNodes(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    Editor.withoutNormalizing(editor, () => {
      var {
        match,
        at = editor.selection
      } = options;
      var {
        hanging = false,
        voids = false,
        mode = 'lowest'
      } = options;

      if (!at) {
        return;
      }

      if (match == null) {
        if (Path.isPath(at)) {
          var [parent] = Editor.parent(editor, at);

          match = n => parent.children.includes(n);
        } else {
          match = n => Editor.isBlock(editor, n);
        }
      }

      if (!hanging && Range.isRange(at)) {
        at = Editor.unhangRange(editor, at);
      }

      if (Range.isRange(at)) {
        if (Range.isCollapsed(at)) {
          at = at.anchor;
        } else {
          var [, end] = Range.edges(at);
          var pointRef = Editor.pointRef(editor, end);
          Transforms.delete(editor, {
            at
          });
          at = pointRef.unref();

          if (options.at == null) {
            Transforms.select(editor, at);
          }
        }
      }

      var [current] = Editor.nodes(editor, {
        at,
        match,
        voids,
        mode
      });
      var prev = Editor.previous(editor, {
        at,
        match,
        voids,
        mode
      });

      if (!current || !prev) {
        return;
      }

      var [node, path] = current;
      var [prevNode, prevPath] = prev;

      if (path.length === 0 || prevPath.length === 0) {
        return;
      }

      var newPath = Path.next(prevPath);
      var commonPath = Path.common(path, prevPath);
      var isPreviousSibling = Path.isSibling(path, prevPath);
      var levels = Array.from(Editor.levels(editor, {
        at: path
      }), (_ref2) => {
        var [n] = _ref2;
        return n;
      }).slice(commonPath.length).slice(0, -1); // Determine if the merge will leave an ancestor of the path empty as a
      // result, in which case we'll want to remove it after merging.

      var emptyAncestor = Editor.above(editor, {
        at: path,
        mode: 'highest',
        match: n => levels.includes(n) && Element.isElement(n) && n.children.length === 1
      });
      var emptyRef = emptyAncestor && Editor.pathRef(editor, emptyAncestor[1]);
      var properties;
      var position; // Ensure that the nodes are equivalent, and figure out what the position
      // and extra properties of the merge will be.

      if (Text.isText(node) && Text.isText(prevNode)) {
        var rest = _objectWithoutProperties(node, ["text"]);

        position = prevNode.text.length;
        properties = rest;
      } else if (Element.isElement(node) && Element.isElement(prevNode)) {
        var rest = _objectWithoutProperties(node, ["children"]);

        position = prevNode.children.length;
        properties = rest;
      } else {
        throw new Error("Cannot merge the node at path [".concat(path, "] with the previous sibling because it is not the same kind: ").concat(JSON.stringify(node), " ").concat(JSON.stringify(prevNode)));
      } // If the node isn't already the next sibling of the previous node, move
      // it so that it is before merging.


      if (!isPreviousSibling) {
        Transforms.moveNodes(editor, {
          at: path,
          to: newPath,
          voids
        });
      } // If there was going to be an empty ancestor of the node that was merged,
      // we remove it from the tree.


      if (emptyRef) {
        Transforms.removeNodes(editor, {
          at: emptyRef.current,
          voids
        });
      } // If the target node that we're merging with is empty, remove it instead
      // of merging the two. This is a common rich text editor behavior to
      // prevent losing formatting when deleting entire nodes when you have a
      // hanging selection.


      if (Element.isElement(prevNode) && Editor.isEmpty(editor, prevNode) || Text.isText(prevNode) && prevNode.text === '') {
        Transforms.removeNodes(editor, {
          at: prevPath,
          voids
        });
      } else {
        editor.apply({
          type: 'merge_node',
          path: newPath,
          position,
          target: null,
          properties
        });
      }

      if (emptyRef) {
        emptyRef.unref();
      }
    });
  },

  /**
   * Move the nodes at a location to a new location.
   */
  moveNodes(editor, options) {
    Editor.withoutNormalizing(editor, () => {
      var {
        to,
        at = editor.selection,
        mode = 'lowest',
        voids = false
      } = options;
      var {
        match
      } = options;

      if (!at) {
        return;
      }

      if (match == null) {
        match = Path.isPath(at) ? matchPath(editor, at) : n => Editor.isBlock(editor, n);
      }

      var toRef = Editor.pathRef(editor, to);
      var targets = Editor.nodes(editor, {
        at,
        match,
        mode,
        voids
      });
      var pathRefs = Array.from(targets, (_ref3) => {
        var [, p] = _ref3;
        return Editor.pathRef(editor, p);
      });

      for (var pathRef of pathRefs) {
        var path = pathRef.unref();
        var newPath = toRef.current;

        if (path.length !== 0) {
          editor.apply({
            type: 'move_node',
            path,
            newPath
          });
        }
      }

      toRef.unref();
    });
  },

  /**
   * Remove the nodes at a specific location in the document.
   */
  removeNodes(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    Editor.withoutNormalizing(editor, () => {
      var {
        hanging = false,
        voids = false,
        mode = 'lowest'
      } = options;
      var {
        at = editor.selection,
        match
      } = options;

      if (!at) {
        return;
      }

      if (match == null) {
        match = Path.isPath(at) ? matchPath(editor, at) : n => Editor.isBlock(editor, n);
      }

      if (!hanging && Range.isRange(at)) {
        at = Editor.unhangRange(editor, at);
      }

      var depths = Editor.nodes(editor, {
        at,
        match,
        mode,
        voids
      });
      var pathRefs = Array.from(depths, (_ref4) => {
        var [, p] = _ref4;
        return Editor.pathRef(editor, p);
      });

      for (var pathRef of pathRefs) {
        var path = pathRef.unref();

        if (path) {
          var [node] = Editor.node(editor, path);
          editor.apply({
            type: 'remove_node',
            path,
            node
          });
        }
      }
    });
  },

  /**
   * Set new properties on the nodes at a location.
   */
  setNodes(editor, props) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    Editor.withoutNormalizing(editor, () => {
      var {
        match,
        at = editor.selection
      } = options;
      var {
        hanging = false,
        mode = 'lowest',
        split = false,
        voids = false
      } = options;

      if (!at) {
        return;
      }

      if (match == null) {
        match = Path.isPath(at) ? matchPath(editor, at) : n => Editor.isBlock(editor, n);
      }

      if (!hanging && Range.isRange(at)) {
        at = Editor.unhangRange(editor, at);
      }

      if (split && Range.isRange(at)) {
        var rangeRef = Editor.rangeRef(editor, at, {
          affinity: 'inward'
        });
        var [start, end] = Range.edges(at);
        var splitMode = mode === 'lowest' ? 'lowest' : 'highest';
        Transforms.splitNodes(editor, {
          at: end,
          match,
          mode: splitMode,
          voids
        });
        Transforms.splitNodes(editor, {
          at: start,
          match,
          mode: splitMode,
          voids
        });
        at = rangeRef.unref();

        if (options.at == null) {
          Transforms.select(editor, at);
        }
      }

      for (var [node, path] of Editor.nodes(editor, {
        at,
        match,
        mode,
        voids
      })) {
        var properties = {};
        var newProperties = {}; // You can't set properties on the editor node.

        if (path.length === 0) {
          continue;
        }

        for (var k in props) {
          if (k === 'children' || k === 'text') {
            continue;
          }

          if (props[k] !== node[k]) {
            properties[k] = node[k];
            newProperties[k] = props[k];
          }
        }

        if (Object.keys(newProperties).length !== 0) {
          editor.apply({
            type: 'set_node',
            path,
            properties,
            newProperties
          });
        }
      }
    });
  },

  /**
   * Split the nodes at a specific location.
   */
  splitNodes(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    Editor.withoutNormalizing(editor, () => {
      var {
        mode = 'lowest',
        voids = false
      } = options;
      var {
        match,
        at = editor.selection,
        height = 0,
        always = false
      } = options;

      if (match == null) {
        match = n => Editor.isBlock(editor, n);
      }

      if (Range.isRange(at)) {
        at = deleteRange(editor, at);
      } // If the target is a path, the default height-skipping and position
      // counters need to account for us potentially splitting at a non-leaf.


      if (Path.isPath(at)) {
        var path = at;
        var point = Editor.point(editor, path);
        var [parent] = Editor.parent(editor, path);

        match = n => n === parent;

        height = point.path.length - path.length + 1;
        at = point;
        always = true;
      }

      if (!at) {
        return;
      }

      var beforeRef = Editor.pointRef(editor, at, {
        affinity: 'backward'
      });
      var [highest] = Editor.nodes(editor, {
        at,
        match,
        mode,
        voids
      });

      if (!highest) {
        return;
      }

      var voidMatch = Editor.void(editor, {
        at,
        mode: 'highest'
      });
      var nudge = 0;

      if (!voids && voidMatch) {
        var [voidNode, voidPath] = voidMatch;

        if (Element.isElement(voidNode) && editor.isInline(voidNode)) {
          var after = Editor.after(editor, voidPath);

          if (!after) {
            var text = {
              text: ''
            };
            var afterPath = Path.next(voidPath);
            Transforms.insertNodes(editor, text, {
              at: afterPath,
              voids
            });
            after = Editor.point(editor, afterPath);
          }

          at = after;
          always = true;
        }

        var siblingHeight = at.path.length - voidPath.length;
        height = siblingHeight + 1;
        always = true;
      }

      var afterRef = Editor.pointRef(editor, at);
      var depth = at.path.length - height;
      var [, highestPath] = highest;
      var lowestPath = at.path.slice(0, depth);
      var position = height === 0 ? at.offset : at.path[depth] + nudge;
      var target = null;

      for (var [node, _path2] of Editor.levels(editor, {
        at: lowestPath,
        reverse: true,
        voids
      })) {
        var split = false;

        if (_path2.length < highestPath.length || _path2.length === 0 || !voids && Editor.isVoid(editor, node)) {
          break;
        }

        var _point = beforeRef.current;
        var isEnd = Editor.isEnd(editor, _point, _path2);

        if (always || !beforeRef || !Editor.isEdge(editor, _point, _path2)) {
          split = true;

          var properties = _objectWithoutProperties(node, ["text", "children"]);

          editor.apply({
            type: 'split_node',
            path: _path2,
            position,
            target,
            properties
          });
        }

        target = position;
        position = _path2[_path2.length - 1] + (split || isEnd ? 1 : 0);
      }

      if (options.at == null) {
        var _point2 = afterRef.current || Editor.end(editor, []);

        Transforms.select(editor, _point2);
      }

      beforeRef.unref();
      afterRef.unref();
    });
  },

  /**
   * Unset properties on the nodes at a location.
   */
  unsetNodes(editor, props) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

    if (!Array.isArray(props)) {
      props = [props];
    }

    var obj = {};

    for (var key of props) {
      obj[key] = null;
    }

    Transforms.setNodes(editor, obj, options);
  },

  /**
   * Unwrap the nodes at a location from a parent node, splitting the parent if
   * necessary to ensure that only the content in the range is unwrapped.
   */
  unwrapNodes(editor, options) {
    Editor.withoutNormalizing(editor, () => {
      var {
        mode = 'lowest',
        split = false,
        voids = false
      } = options;
      var {
        at = editor.selection,
        match
      } = options;

      if (!at) {
        return;
      }

      if (match == null) {
        match = Path.isPath(at) ? matchPath(editor, at) : n => Editor.isBlock(editor, n);
      }

      if (Path.isPath(at)) {
        at = Editor.range(editor, at);
      }

      var rangeRef = Range.isRange(at) ? Editor.rangeRef(editor, at) : null;
      var matches = Editor.nodes(editor, {
        at,
        match,
        mode,
        voids
      });
      var pathRefs = Array.from(matches, (_ref5) => {
        var [, p] = _ref5;
        return Editor.pathRef(editor, p);
      });

      var _loop = function _loop(pathRef) {
        var path = pathRef.unref();
        var [node] = Editor.node(editor, path);
        var range = Editor.range(editor, path);

        if (split && rangeRef) {
          range = Range.intersection(rangeRef.current, range);
        }

        Transforms.liftNodes(editor, {
          at: range,
          match: n => node.children.includes(n),
          voids
        });
      };

      for (var pathRef of pathRefs) {
        _loop(pathRef);
      }

      if (rangeRef) {
        rangeRef.unref();
      }
    });
  },

  /**
   * Wrap the nodes at a location in a new container node, splitting the edges
   * of the range first to ensure that only the content in the range is wrapped.
   */
  wrapNodes(editor, element) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    Editor.withoutNormalizing(editor, () => {
      var {
        mode = 'lowest',
        split = false,
        voids = false
      } = options;
      var {
        match,
        at = editor.selection
      } = options;

      if (!at) {
        return;
      }

      if (match == null) {
        if (Path.isPath(at)) {
          match = matchPath(editor, at);
        } else if (editor.isInline(element)) {
          match = n => Editor.isInline(editor, n) || Text.isText(n);
        } else {
          match = n => Editor.isBlock(editor, n);
        }
      }

      if (split && Range.isRange(at)) {
        var [start, end] = Range.edges(at);
        var rangeRef = Editor.rangeRef(editor, at, {
          affinity: 'inward'
        });
        Transforms.splitNodes(editor, {
          at: end,
          match,
          voids
        });
        Transforms.splitNodes(editor, {
          at: start,
          match,
          voids
        });
        at = rangeRef.unref();

        if (options.at == null) {
          Transforms.select(editor, at);
        }
      }

      var roots = Array.from(Editor.nodes(editor, {
        at,
        match: editor.isInline(element) ? n => Editor.isBlock(editor, n) : n => Editor.isEditor(n),
        mode: 'highest',
        voids
      }));

      for (var [, rootPath] of roots) {
        var a = Range.isRange(at) ? Range.intersection(at, Editor.range(editor, rootPath)) : at;

        if (!a) {
          continue;
        }

        var matches = Array.from(Editor.nodes(editor, {
          at: a,
          match,
          mode,
          voids
        }));

        if (matches.length > 0) {
          (function () {
            var [first] = matches;
            var last = matches[matches.length - 1];
            var [, firstPath] = first;
            var [, lastPath] = last;
            var commonPath = Path.equals(firstPath, lastPath) ? Path.parent(firstPath) : Path.common(firstPath, lastPath);
            var range = Editor.range(editor, firstPath, lastPath);
            var [commonNode] = Editor.node(editor, commonPath);
            var depth = commonPath.length + 1;
            var wrapperPath = Path.next(lastPath.slice(0, depth));

            var wrapper = _objectSpread$7({}, element, {
              children: []
            });

            Transforms.insertNodes(editor, wrapper, {
              at: wrapperPath,
              voids
            });
            Transforms.moveNodes(editor, {
              at: range,
              match: n => commonNode.children.includes(n),
              to: wrapperPath.concat(0),
              voids
            });
          })();
        }
      }
    });
  }

};
/**
 * Convert a range into a point by deleting it's content.
 */

var deleteRange = (editor, range) => {
  if (Range.isCollapsed(range)) {
    return range.anchor;
  } else {
    var [, end] = Range.edges(range);
    var pointRef = Editor.pointRef(editor, end);
    Transforms.delete(editor, {
      at: range
    });
    return pointRef.unref();
  }
};

var matchPath = (editor, path) => {
  var [node] = Editor.node(editor, path);
  return n => n === node;
};

var SelectionTransforms = {
  /**
   * Collapse the selection.
   */
  collapse(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      edge = 'anchor'
    } = options;
    var {
      selection
    } = editor;

    if (!selection) {
      return;
    } else if (edge === 'anchor') {
      Transforms.select(editor, selection.anchor);
    } else if (edge === 'focus') {
      Transforms.select(editor, selection.focus);
    } else if (edge === 'start') {
      var [start] = Range.edges(selection);
      Transforms.select(editor, start);
    } else if (edge === 'end') {
      var [, end] = Range.edges(selection);
      Transforms.select(editor, end);
    }
  },

  /**
   * Unset the selection.
   */
  deselect(editor) {
    var {
      selection
    } = editor;

    if (selection) {
      editor.apply({
        type: 'set_selection',
        properties: selection,
        newProperties: null
      });
    }
  },

  /**
   * Move the selection's point forward or backward.
   */
  move(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var {
      selection
    } = editor;
    var {
      distance = 1,
      unit = 'character',
      reverse = false
    } = options;
    var {
      edge = null
    } = options;

    if (!selection) {
      return;
    }

    if (edge === 'start') {
      edge = Range.isBackward(selection) ? 'focus' : 'anchor';
    }

    if (edge === 'end') {
      edge = Range.isBackward(selection) ? 'anchor' : 'focus';
    }

    var {
      anchor,
      focus
    } = selection;
    var opts = {
      distance,
      unit
    };
    var props = {};

    if (edge == null || edge === 'anchor') {
      var point = reverse ? Editor.before(editor, anchor, opts) : Editor.after(editor, anchor, opts);

      if (point) {
        props.anchor = point;
      }
    }

    if (edge == null || edge === 'focus') {
      var _point = reverse ? Editor.before(editor, focus, opts) : Editor.after(editor, focus, opts);

      if (_point) {
        props.focus = _point;
      }
    }

    Transforms.setSelection(editor, props);
  },

  /**
   * Set the selection to a new value.
   */
  select(editor, target) {
    var {
      selection
    } = editor;
    target = Editor.range(editor, target);

    if (selection) {
      Transforms.setSelection(editor, target);
      return;
    }

    if (!Range.isRange(target)) {
      throw new Error("When setting the selection and the current selection is `null` you must provide at least an `anchor` and `focus`, but you passed: ".concat(JSON.stringify(target)));
    }

    editor.apply({
      type: 'set_selection',
      properties: selection,
      newProperties: target
    });
  },

  /**
   * Set new properties on one of the selection's points.
   */
  setPoint(editor, props, options) {
    var {
      selection
    } = editor;
    var {
      edge = 'both'
    } = options;

    if (!selection) {
      return;
    }

    if (edge === 'start') {
      edge = Range.isBackward(selection) ? 'focus' : 'anchor';
    }

    if (edge === 'end') {
      edge = Range.isBackward(selection) ? 'anchor' : 'focus';
    }

    var {
      anchor,
      focus
    } = selection;
    var point = edge === 'anchor' ? anchor : focus;
    var newPoint = Object.assign(point, props);

    if (edge === 'anchor') {
      Transforms.setSelection(editor, {
        anchor: newPoint
      });
    } else {
      Transforms.setSelection(editor, {
        focus: newPoint
      });
    }
  },

  /**
   * Set new properties on the selection.
   */
  setSelection(editor, props) {
    var {
      selection
    } = editor;
    var oldProps = {};
    var newProps = {};

    if (!selection) {
      return;
    }

    for (var k in props) {
      if (k === 'anchor' && props.anchor != null && !Point.equals(props.anchor, selection.anchor) || k === 'focus' && props.focus != null && !Point.equals(props.focus, selection.focus) || k !== 'anchor' && k !== 'focus' && props[k] !== selection[k]) {
        oldProps[k] = selection[k];
        newProps[k] = props[k];
      }
    }

    if (Object.keys(oldProps).length > 0) {
      editor.apply({
        type: 'set_selection',
        properties: oldProps,
        newProperties: newProps
      });
    }
  }

};

var TextTransforms = {
  /**
   * Delete content in the editor.
   */
  delete(editor) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    Editor.withoutNormalizing(editor, () => {
      var {
        reverse = false,
        unit = 'character',
        distance = 1,
        voids = false
      } = options;
      var {
        at = editor.selection,
        hanging = false
      } = options;

      if (!at) {
        return;
      }

      if (Range.isRange(at) && Range.isCollapsed(at)) {
        at = at.anchor;
      }

      if (Point.isPoint(at)) {
        var furthestVoid = Editor.void(editor, {
          at,
          mode: 'highest'
        });

        if (!voids && furthestVoid) {
          var [, voidPath] = furthestVoid;
          at = voidPath;
        } else {
          var opts = {
            unit,
            distance
          };
          var target = reverse ? Editor.before(editor, at, opts) || Editor.start(editor, []) : Editor.after(editor, at, opts) || Editor.end(editor, []);
          at = {
            anchor: at,
            focus: target
          };
          hanging = true;
        }
      }

      if (Path.isPath(at)) {
        Transforms.removeNodes(editor, {
          at,
          voids
        });
        return;
      }

      if (Range.isCollapsed(at)) {
        return;
      }

      if (!hanging) {
        at = Editor.unhangRange(editor, at, {
          voids
        });
      }

      var [start, end] = Range.edges(at);
      var startBlock = Editor.above(editor, {
        match: n => Editor.isBlock(editor, n),
        at: start,
        voids
      });
      var endBlock = Editor.above(editor, {
        match: n => Editor.isBlock(editor, n),
        at: end,
        voids
      });
      var isAcrossBlocks = startBlock && endBlock && !Path.equals(startBlock[1], endBlock[1]);
      var isSingleText = Path.equals(start.path, end.path);
      var startVoid = voids ? null : Editor.void(editor, {
        at: start,
        mode: 'highest'
      });
      var endVoid = voids ? null : Editor.void(editor, {
        at: end,
        mode: 'highest'
      }); // If the start or end points are inside an inline void, nudge them out.

      if (startVoid) {
        var before = Editor.before(editor, start);

        if (before && startBlock && Path.isAncestor(startBlock[1], before.path)) {
          start = before;
        }
      }

      if (endVoid) {
        var after = Editor.after(editor, end);

        if (after && endBlock && Path.isAncestor(endBlock[1], after.path)) {
          end = after;
        }
      } // Get the highest nodes that are completely inside the range, as well as
      // the start and end nodes.


      var matches = [];
      var lastPath;

      for (var entry of Editor.nodes(editor, {
        at,
        voids
      })) {
        var [node, path] = entry;

        if (lastPath && Path.compare(path, lastPath) === 0) {
          continue;
        }

        if (!voids && Editor.isVoid(editor, node) || !Path.isCommon(path, start.path) && !Path.isCommon(path, end.path)) {
          matches.push(entry);
          lastPath = path;
        }
      }

      var pathRefs = Array.from(matches, (_ref) => {
        var [, p] = _ref;
        return Editor.pathRef(editor, p);
      });
      var startRef = Editor.pointRef(editor, start);
      var endRef = Editor.pointRef(editor, end);

      if (!isSingleText && !startVoid) {
        var _point = startRef.current;
        var [_node] = Editor.leaf(editor, _point);
        var {
          path: _path
        } = _point;
        var {
          offset
        } = start;

        var text = _node.text.slice(offset);

        editor.apply({
          type: 'remove_text',
          path: _path,
          offset,
          text
        });
      }

      for (var pathRef of pathRefs) {
        var _path2 = pathRef.unref();

        Transforms.removeNodes(editor, {
          at: _path2,
          voids
        });
      }

      if (!endVoid) {
        var _point2 = endRef.current;
        var [_node2] = Editor.leaf(editor, _point2);
        var {
          path: _path3
        } = _point2;

        var _offset = isSingleText ? start.offset : 0;

        var _text = _node2.text.slice(_offset, end.offset);

        editor.apply({
          type: 'remove_text',
          path: _path3,
          offset: _offset,
          text: _text
        });
      }

      if (!isSingleText && isAcrossBlocks && endRef.current && startRef.current) {
        Transforms.mergeNodes(editor, {
          at: endRef.current,
          hanging: true,
          voids
        });
      }

      var point = endRef.unref() || startRef.unref();

      if (options.at == null && point) {
        Transforms.select(editor, point);
      }
    });
  },

  /**
   * Insert a fragment at a specific location in the editor.
   */
  insertFragment(editor, fragment) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    Editor.withoutNormalizing(editor, () => {
      var {
        hanging = false,
        voids = false
      } = options;
      var {
        at = editor.selection
      } = options;

      if (!fragment.length) {
        return;
      }

      if (!at) {
        return;
      } else if (Range.isRange(at)) {
        if (!hanging) {
          at = Editor.unhangRange(editor, at);
        }

        if (Range.isCollapsed(at)) {
          at = at.anchor;
        } else {
          var [, end] = Range.edges(at);

          if (!voids && Editor.void(editor, {
            at: end
          })) {
            return;
          }

          var pointRef = Editor.pointRef(editor, end);
          Transforms.delete(editor, {
            at
          });
          at = pointRef.unref();
        }
      } else if (Path.isPath(at)) {
        at = Editor.start(editor, at);
      }

      if (!voids && Editor.void(editor, {
        at
      })) {
        return;
      } // If the insert point is at the edge of an inline node, move it outside
      // instead since it will need to be split otherwise.


      var inlineElementMatch = Editor.above(editor, {
        at,
        match: n => Editor.isInline(editor, n),
        mode: 'highest',
        voids
      });

      if (inlineElementMatch) {
        var [, _inlinePath] = inlineElementMatch;

        if (Editor.isEnd(editor, at, _inlinePath)) {
          var after = Editor.after(editor, _inlinePath);
          at = after;
        } else if (Editor.isStart(editor, at, _inlinePath)) {
          var before = Editor.before(editor, _inlinePath);
          at = before;
        }
      }

      var blockMatch = Editor.above(editor, {
        match: n => Editor.isBlock(editor, n),
        at,
        voids
      });
      var [, blockPath] = blockMatch;
      var isBlockStart = Editor.isStart(editor, at, blockPath);
      var isBlockEnd = Editor.isEnd(editor, at, blockPath);
      var mergeStart = !isBlockStart || isBlockStart && isBlockEnd;
      var mergeEnd = !isBlockEnd;
      var [, firstPath] = Node.first({
        children: fragment
      }, []);
      var [, lastPath] = Node.last({
        children: fragment
      }, []);
      var matches = [];

      var matcher = (_ref2) => {
        var [n, p] = _ref2;

        if (mergeStart && Path.isAncestor(p, firstPath) && Element.isElement(n) && !editor.isVoid(n) && !editor.isInline(n)) {
          return false;
        }

        if (mergeEnd && Path.isAncestor(p, lastPath) && Element.isElement(n) && !editor.isVoid(n) && !editor.isInline(n)) {
          return false;
        }

        return true;
      };

      for (var entry of Node.nodes({
        children: fragment
      }, {
        pass: matcher
      })) {
        if (entry[1].length > 0 && matcher(entry)) {
          matches.push(entry);
        }
      }

      var starts = [];
      var middles = [];
      var ends = [];
      var starting = true;
      var hasBlocks = false;

      for (var [node] of matches) {
        if (Element.isElement(node) && !editor.isInline(node)) {
          starting = false;
          hasBlocks = true;
          middles.push(node);
        } else if (starting) {
          starts.push(node);
        } else {
          ends.push(node);
        }
      }

      var [inlineMatch] = Editor.nodes(editor, {
        at,
        match: n => Text.isText(n) || Editor.isInline(editor, n),
        mode: 'highest',
        voids
      });
      var [, inlinePath] = inlineMatch;
      var isInlineStart = Editor.isStart(editor, at, inlinePath);
      var isInlineEnd = Editor.isEnd(editor, at, inlinePath);
      var middleRef = Editor.pathRef(editor, isBlockEnd ? Path.next(blockPath) : blockPath);
      var endRef = Editor.pathRef(editor, isInlineEnd ? Path.next(inlinePath) : inlinePath);
      Transforms.splitNodes(editor, {
        at,
        match: n => hasBlocks ? Editor.isBlock(editor, n) : Text.isText(n) || Editor.isInline(editor, n),
        mode: hasBlocks ? 'lowest' : 'highest',
        voids
      });
      var startRef = Editor.pathRef(editor, !isInlineStart || isInlineStart && isInlineEnd ? Path.next(inlinePath) : inlinePath);
      Transforms.insertNodes(editor, starts, {
        at: startRef.current,
        match: n => Text.isText(n) || Editor.isInline(editor, n),
        mode: 'highest',
        voids
      });
      Transforms.insertNodes(editor, middles, {
        at: middleRef.current,
        match: n => Editor.isBlock(editor, n),
        mode: 'lowest',
        voids
      });
      Transforms.insertNodes(editor, ends, {
        at: endRef.current,
        match: n => Text.isText(n) || Editor.isInline(editor, n),
        mode: 'highest',
        voids
      });

      if (!options.at) {
        var path;

        if (ends.length > 0) {
          path = Path.previous(endRef.current);
        } else if (middles.length > 0) {
          path = Path.previous(middleRef.current);
        } else {
          path = Path.previous(startRef.current);
        }

        var _end = Editor.end(editor, path);

        Transforms.select(editor, _end);
      }

      startRef.unref();
      middleRef.unref();
      endRef.unref();
    });
  },

  /**
   * Insert a string of text in the Editor.
   */
  insertText(editor, text) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    Editor.withoutNormalizing(editor, () => {
      var {
        voids = false
      } = options;
      var {
        at = editor.selection
      } = options;

      if (!at) {
        return;
      }

      if (Path.isPath(at)) {
        at = Editor.range(editor, at);
      }

      if (Range.isRange(at)) {
        if (Range.isCollapsed(at)) {
          at = at.anchor;
        } else {
          var end = Range.end(at);

          if (!voids && Editor.void(editor, {
            at: end
          })) {
            return;
          }

          var pointRef = Editor.pointRef(editor, end);
          Transforms.delete(editor, {
            at,
            voids
          });
          at = pointRef.unref();
          Transforms.setSelection(editor, {
            anchor: at,
            focus: at
          });
        }
      }

      if (!voids && Editor.void(editor, {
        at
      })) {
        return;
      }

      var {
        path,
        offset
      } = at;
      editor.apply({
        type: 'insert_text',
        path,
        offset,
        text
      });
    });
  }

};

function ownKeys$8(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread$8(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$8(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$8(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
var Transforms = _objectSpread$8({}, GeneralTransforms, {}, NodeTransforms, {}, SelectionTransforms, {}, TextTransforms);

exports.Editor = Editor;
exports.Element = Element;
exports.Location = Location;
exports.Node = Node;
exports.Operation = Operation;
exports.Path = Path;
exports.PathRef = PathRef;
exports.Point = Point;
exports.PointRef = PointRef;
exports.Range = Range;
exports.RangeRef = RangeRef;
exports.Span = Span;
exports.Text = Text;
exports.Transforms = Transforms;
exports.createEditor = createEditor;

});

unwrapExports(dist$5);
var dist_1$3 = dist$5.Editor;
var dist_2$3 = dist$5.Element;
var dist_3$3 = dist$5.Location;
var dist_4$1 = dist$5.Node;
var dist_5$1 = dist$5.Operation;
var dist_6$1 = dist$5.Path;
var dist_7 = dist$5.PathRef;
var dist_8 = dist$5.Point;
var dist_9 = dist$5.PointRef;
var dist_10 = dist$5.Range;
var dist_11 = dist$5.RangeRef;
var dist_12 = dist$5.Span;
var dist_13 = dist$5.Text;
var dist_14 = dist$5.Transforms;
var dist_15 = dist$5.createEditor;

/**
 * Returns a function, that, as long as it continues to be invoked, will not
 * be triggered. The function will be called after it stops being called for
 * N milliseconds. If `immediate` is passed, trigger the function on the
 * leading edge, instead of the trailing. The function also has a property 'clear' 
 * that is a function which will clear the timer to prevent previously scheduled executions. 
 *
 * @source underscore.js
 * @see http://unscriptable.com/2009/03/20/debouncing-javascript-methods/
 * @param {Function} function to wrap
 * @param {Number} timeout in ms (`100`)
 * @param {Boolean} whether to execute at the beginning (`false`)
 * @api public
 */
function debounce(func, wait, immediate){
  var timeout, args, context, timestamp, result;
  if (null == wait) wait = 100;

  function later() {
    var last = Date.now() - timestamp;

    if (last < wait && last >= 0) {
      timeout = setTimeout(later, wait - last);
    } else {
      timeout = null;
      if (!immediate) {
        result = func.apply(context, args);
        context = args = null;
      }
    }
  }
  var debounced = function(){
    context = this;
    args = arguments;
    timestamp = Date.now();
    var callNow = immediate && !timeout;
    if (!timeout) timeout = setTimeout(later, wait);
    if (callNow) {
      result = func.apply(context, args);
      context = args = null;
    }

    return result;
  };

  debounced.clear = function() {
    if (timeout) {
      clearTimeout(timeout);
      timeout = null;
    }
  };
  
  debounced.flush = function() {
    if (timeout) {
      result = func.apply(context, args);
      context = args = null;
      
      clearTimeout(timeout);
      timeout = null;
    }
  };

  return debounced;
}
// Adds compatibility for ES modules
debounce.debounce = debounce;

var debounce_1 = debounce;

var computeScrollIntoView = createCommonjsModule(function (module, exports) {

exports.__esModule = true;
exports["default"] = void 0;

function isElement(el) {
  return el != null && typeof el === 'object' && el.nodeType === 1;
}

function canOverflow(overflow, skipOverflowHiddenElements) {
  if (skipOverflowHiddenElements && overflow === 'hidden') {
    return false;
  }

  return overflow !== 'visible' && overflow !== 'clip';
}

function getFrameElement(el) {
  if (!el.ownerDocument || !el.ownerDocument.defaultView) {
    return null;
  }

  return el.ownerDocument.defaultView.frameElement;
}

function isHiddenByFrame(el) {
  var frame = getFrameElement(el);

  if (!frame) {
    return false;
  }

  return frame.clientHeight < el.scrollHeight || frame.clientWidth < el.scrollWidth;
}

function isScrollable(el, skipOverflowHiddenElements) {
  if (el.clientHeight < el.scrollHeight || el.clientWidth < el.scrollWidth) {
    var style = getComputedStyle(el, null);
    return canOverflow(style.overflowY, skipOverflowHiddenElements) || canOverflow(style.overflowX, skipOverflowHiddenElements) || isHiddenByFrame(el);
  }

  return false;
}

function alignNearest(scrollingEdgeStart, scrollingEdgeEnd, scrollingSize, scrollingBorderStart, scrollingBorderEnd, elementEdgeStart, elementEdgeEnd, elementSize) {
  if (elementEdgeStart < scrollingEdgeStart && elementEdgeEnd > scrollingEdgeEnd || elementEdgeStart > scrollingEdgeStart && elementEdgeEnd < scrollingEdgeEnd) {
    return 0;
  }

  if (elementEdgeStart <= scrollingEdgeStart && elementSize <= scrollingSize || elementEdgeEnd >= scrollingEdgeEnd && elementSize >= scrollingSize) {
    return elementEdgeStart - scrollingEdgeStart - scrollingBorderStart;
  }

  if (elementEdgeEnd > scrollingEdgeEnd && elementSize < scrollingSize || elementEdgeStart < scrollingEdgeStart && elementSize > scrollingSize) {
    return elementEdgeEnd - scrollingEdgeEnd + scrollingBorderEnd;
  }

  return 0;
}

var _default = function _default(target, options) {
  var scrollMode = options.scrollMode,
      block = options.block,
      inline = options.inline,
      boundary = options.boundary,
      skipOverflowHiddenElements = options.skipOverflowHiddenElements;
  var checkBoundary = typeof boundary === 'function' ? boundary : function (node) {
    return node !== boundary;
  };

  if (!isElement(target)) {
    throw new TypeError('Invalid target');
  }

  var scrollingElement = document.scrollingElement || document.documentElement;
  var frames = [];
  var cursor = target;

  while (isElement(cursor) && checkBoundary(cursor)) {
    cursor = cursor.parentNode;

    if (cursor === scrollingElement) {
      frames.push(cursor);
      break;
    }

    if (cursor === document.body && isScrollable(cursor) && !isScrollable(document.documentElement)) {
      continue;
    }

    if (isScrollable(cursor, skipOverflowHiddenElements)) {
      frames.push(cursor);
    }
  }

  var viewportWidth = window.visualViewport ? visualViewport.width : innerWidth;
  var viewportHeight = window.visualViewport ? visualViewport.height : innerHeight;
  var viewportX = window.scrollX || pageXOffset;
  var viewportY = window.scrollY || pageYOffset;

  var _target$getBoundingCl = target.getBoundingClientRect(),
      targetHeight = _target$getBoundingCl.height,
      targetWidth = _target$getBoundingCl.width,
      targetTop = _target$getBoundingCl.top,
      targetRight = _target$getBoundingCl.right,
      targetBottom = _target$getBoundingCl.bottom,
      targetLeft = _target$getBoundingCl.left;

  var targetBlock = block === 'start' || block === 'nearest' ? targetTop : block === 'end' ? targetBottom : targetTop + targetHeight / 2;
  var targetInline = inline === 'center' ? targetLeft + targetWidth / 2 : inline === 'end' ? targetRight : targetLeft;
  var computations = [];

  for (var index = 0; index < frames.length; index++) {
    var frame = frames[index];

    var _frame$getBoundingCli = frame.getBoundingClientRect(),
        height = _frame$getBoundingCli.height,
        width = _frame$getBoundingCli.width,
        top = _frame$getBoundingCli.top,
        right = _frame$getBoundingCli.right,
        bottom = _frame$getBoundingCli.bottom,
        left = _frame$getBoundingCli.left;

    if (scrollMode === 'if-needed' && targetTop >= 0 && targetLeft >= 0 && targetBottom <= viewportHeight && targetRight <= viewportWidth && targetTop >= top && targetBottom <= bottom && targetLeft >= left && targetRight <= right) {
      return computations;
    }

    var frameStyle = getComputedStyle(frame);
    var borderLeft = parseInt(frameStyle.borderLeftWidth, 10);
    var borderTop = parseInt(frameStyle.borderTopWidth, 10);
    var borderRight = parseInt(frameStyle.borderRightWidth, 10);
    var borderBottom = parseInt(frameStyle.borderBottomWidth, 10);
    var blockScroll = 0;
    var inlineScroll = 0;
    var scrollbarWidth = 'offsetWidth' in frame ? frame.offsetWidth - frame.clientWidth - borderLeft - borderRight : 0;
    var scrollbarHeight = 'offsetHeight' in frame ? frame.offsetHeight - frame.clientHeight - borderTop - borderBottom : 0;

    if (scrollingElement === frame) {
      if (block === 'start') {
        blockScroll = targetBlock;
      } else if (block === 'end') {
        blockScroll = targetBlock - viewportHeight;
      } else if (block === 'nearest') {
        blockScroll = alignNearest(viewportY, viewportY + viewportHeight, viewportHeight, borderTop, borderBottom, viewportY + targetBlock, viewportY + targetBlock + targetHeight, targetHeight);
      } else {
        blockScroll = targetBlock - viewportHeight / 2;
      }

      if (inline === 'start') {
        inlineScroll = targetInline;
      } else if (inline === 'center') {
        inlineScroll = targetInline - viewportWidth / 2;
      } else if (inline === 'end') {
        inlineScroll = targetInline - viewportWidth;
      } else {
        inlineScroll = alignNearest(viewportX, viewportX + viewportWidth, viewportWidth, borderLeft, borderRight, viewportX + targetInline, viewportX + targetInline + targetWidth, targetWidth);
      }

      blockScroll = Math.max(0, blockScroll + viewportY);
      inlineScroll = Math.max(0, inlineScroll + viewportX);
    } else {
      if (block === 'start') {
        blockScroll = targetBlock - top - borderTop;
      } else if (block === 'end') {
        blockScroll = targetBlock - bottom + borderBottom + scrollbarHeight;
      } else if (block === 'nearest') {
        blockScroll = alignNearest(top, bottom, height, borderTop, borderBottom + scrollbarHeight, targetBlock, targetBlock + targetHeight, targetHeight);
      } else {
        blockScroll = targetBlock - (top + height / 2) + scrollbarHeight / 2;
      }

      if (inline === 'start') {
        inlineScroll = targetInline - left - borderLeft;
      } else if (inline === 'center') {
        inlineScroll = targetInline - (left + width / 2) + scrollbarWidth / 2;
      } else if (inline === 'end') {
        inlineScroll = targetInline - right + borderRight + scrollbarWidth;
      } else {
        inlineScroll = alignNearest(left, right, width, borderLeft, borderRight + scrollbarWidth, targetInline, targetInline + targetWidth, targetWidth);
      }

      var scrollLeft = frame.scrollLeft,
          scrollTop = frame.scrollTop;
      blockScroll = Math.max(0, Math.min(scrollTop + blockScroll, frame.scrollHeight - height + scrollbarHeight));
      inlineScroll = Math.max(0, Math.min(scrollLeft + inlineScroll, frame.scrollWidth - width + scrollbarWidth));
      targetBlock += scrollTop - blockScroll;
      targetInline += scrollLeft - inlineScroll;
    }

    computations.push({
      el: frame,
      top: blockScroll,
      left: inlineScroll
    });
  }

  return computations;
};

exports["default"] = _default;
module.exports = exports.default;
});

unwrapExports(computeScrollIntoView);

var scrollIntoViewIfNeeded = createCommonjsModule(function (module, exports) {

exports.__esModule = true;
exports["default"] = void 0;

var _computeScrollIntoView = _interopRequireDefault(computeScrollIntoView);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function isOptionsObject(options) {
  return options === Object(options) && Object.keys(options).length !== 0;
}

function defaultBehavior(actions, behavior) {
  if (behavior === void 0) {
    behavior = 'auto';
  }

  var canSmoothScroll = 'scrollBehavior' in document.body.style;
  actions.forEach(function (_ref) {
    var el = _ref.el,
        top = _ref.top,
        left = _ref.left;

    if (el.scroll && canSmoothScroll) {
      el.scroll({
        top: top,
        left: left,
        behavior: behavior
      });
    } else {
      el.scrollTop = top;
      el.scrollLeft = left;
    }
  });
}

function getOptions(options) {
  if (options === false) {
    return {
      block: 'end',
      inline: 'nearest'
    };
  }

  if (isOptionsObject(options)) {
    return options;
  }

  return {
    block: 'start',
    inline: 'nearest'
  };
}

function scrollIntoView(target, options) {
  var targetIsDetached = !target.ownerDocument.documentElement.contains(target);

  if (isOptionsObject(options) && typeof options.behavior === 'function') {
    return options.behavior(targetIsDetached ? [] : (0, _computeScrollIntoView["default"])(target, options));
  }

  if (targetIsDetached) {
    return;
  }

  var computeOptions = getOptions(options);
  return defaultBehavior((0, _computeScrollIntoView["default"])(target, computeOptions), computeOptions.behavior);
}

var _default = scrollIntoView;
exports["default"] = _default;
module.exports = exports.default;
});

unwrapExports(scrollIntoViewIfNeeded);

var direction_1 = direction;

var RTL$1 = '\u0591-\u07FF\uFB1D-\uFDFD\uFE70-\uFEFC';
var LTR$1 =
  'A-Za-z\u00C0-\u00D6\u00D8-\u00F6' +
  '\u00F8-\u02B8\u0300-\u0590\u0800-\u1FFF\u200E\u2C00-\uFB1C' +
  '\uFE00-\uFE6F\uFEFD-\uFFFF';

var rtl = new RegExp('^[^' + LTR$1 + ']*[' + RTL$1 + ']');
var ltr = new RegExp('^[^' + RTL$1 + ']*[' + LTR$1 + ']');

function direction(value) {
  value = String(value || '');

  if (rtl.test(value)) {
    return 'rtl'
  }

  if (ltr.test(value)) {
    return 'ltr'
  }

  return 'neutral'
}

var lib$1 = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, "__esModule", {
  value: true
});

/**
 * Constants.
 */

var IS_MAC = typeof window != 'undefined' && /Mac|iPod|iPhone|iPad/.test(window.navigator.platform);

var MODIFIERS = {
  alt: 'altKey',
  control: 'ctrlKey',
  meta: 'metaKey',
  shift: 'shiftKey'
};

var ALIASES = {
  add: '+',
  break: 'pause',
  cmd: 'meta',
  command: 'meta',
  ctl: 'control',
  ctrl: 'control',
  del: 'delete',
  down: 'arrowdown',
  esc: 'escape',
  ins: 'insert',
  left: 'arrowleft',
  mod: IS_MAC ? 'meta' : 'control',
  opt: 'alt',
  option: 'alt',
  return: 'enter',
  right: 'arrowright',
  space: ' ',
  spacebar: ' ',
  up: 'arrowup',
  win: 'meta',
  windows: 'meta'
};

var CODES = {
  backspace: 8,
  tab: 9,
  enter: 13,
  shift: 16,
  control: 17,
  alt: 18,
  pause: 19,
  capslock: 20,
  escape: 27,
  ' ': 32,
  pageup: 33,
  pagedown: 34,
  end: 35,
  home: 36,
  arrowleft: 37,
  arrowup: 38,
  arrowright: 39,
  arrowdown: 40,
  insert: 45,
  delete: 46,
  meta: 91,
  numlock: 144,
  scrolllock: 145,
  ';': 186,
  '=': 187,
  ',': 188,
  '-': 189,
  '.': 190,
  '/': 191,
  '`': 192,
  '[': 219,
  '\\': 220,
  ']': 221,
  '\'': 222
};

for (var f = 1; f < 20; f++) {
  CODES['f' + f] = 111 + f;
}

/**
 * Is hotkey?
 */

function isHotkey(hotkey, options, event) {
  if (options && !('byKey' in options)) {
    event = options;
    options = null;
  }

  if (!Array.isArray(hotkey)) {
    hotkey = [hotkey];
  }

  var array = hotkey.map(function (string) {
    return parseHotkey(string, options);
  });
  var check = function check(e) {
    return array.some(function (object) {
      return compareHotkey(object, e);
    });
  };
  var ret = event == null ? check : check(event);
  return ret;
}

function isCodeHotkey(hotkey, event) {
  return isHotkey(hotkey, event);
}

function isKeyHotkey(hotkey, event) {
  return isHotkey(hotkey, { byKey: true }, event);
}

/**
 * Parse.
 */

function parseHotkey(hotkey, options) {
  var byKey = options && options.byKey;
  var ret = {};

  // Special case to handle the `+` key since we use it as a separator.
  hotkey = hotkey.replace('++', '+add');
  var values = hotkey.split('+');
  var length = values.length;

  // Ensure that all the modifiers are set to false unless the hotkey has them.

  for (var k in MODIFIERS) {
    ret[MODIFIERS[k]] = false;
  }

  var _iteratorNormalCompletion = true;
  var _didIteratorError = false;
  var _iteratorError = undefined;

  try {
    for (var _iterator = values[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
      var value = _step.value;

      var optional = value.endsWith('?') && value.length > 1;

      if (optional) {
        value = value.slice(0, -1);
      }

      var name = toKeyName(value);
      var modifier = MODIFIERS[name];

      if (length === 1 || !modifier) {
        if (byKey) {
          ret.key = name;
        } else {
          ret.which = toKeyCode(value);
        }
      }

      if (modifier) {
        ret[modifier] = optional ? null : true;
      }
    }
  } catch (err) {
    _didIteratorError = true;
    _iteratorError = err;
  } finally {
    try {
      if (!_iteratorNormalCompletion && _iterator.return) {
        _iterator.return();
      }
    } finally {
      if (_didIteratorError) {
        throw _iteratorError;
      }
    }
  }

  return ret;
}

/**
 * Compare.
 */

function compareHotkey(object, event) {
  for (var key in object) {
    var expected = object[key];
    var actual = void 0;

    if (expected == null) {
      continue;
    }

    if (key === 'key' && event.key != null) {
      actual = event.key.toLowerCase();
    } else if (key === 'which') {
      actual = expected === 91 && event.which === 93 ? 91 : event.which;
    } else {
      actual = event[key];
    }

    if (actual == null && expected === false) {
      continue;
    }

    if (actual !== expected) {
      return false;
    }
  }

  return true;
}

/**
 * Utils.
 */

function toKeyCode(name) {
  name = toKeyName(name);
  var code = CODES[name] || name.toUpperCase().charCodeAt(0);
  return code;
}

function toKeyName(name) {
  name = name.toLowerCase();
  name = ALIASES[name] || name;
  return name;
}

/**
 * Export.
 */

exports.default = isHotkey;
exports.isHotkey = isHotkey;
exports.isCodeHotkey = isCodeHotkey;
exports.isKeyHotkey = isKeyHotkey;
exports.parseHotkey = parseHotkey;
exports.compareHotkey = compareHotkey;
exports.toKeyCode = toKeyCode;
exports.toKeyName = toKeyName;
});

unwrapExports(lib$1);
var lib_1 = lib$1.isHotkey;
var lib_2 = lib$1.isCodeHotkey;
var lib_3 = lib$1.isKeyHotkey;
var lib_4 = lib$1.parseHotkey;
var lib_5 = lib$1.compareHotkey;
var lib_6 = lib$1.toKeyCode;
var lib_7 = lib$1.toKeyName;

var dist$6 = createCommonjsModule(function (module, exports) {

Object.defineProperty(exports, '__esModule', { value: true });

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }


var React__default = _interopDefault(React);

var debounce = _interopDefault(debounce_1);
var scrollIntoView = _interopDefault(scrollIntoViewIfNeeded);
var getDirection = _interopDefault(direction_1);

var ReactDOM = _interopDefault(reactDom);

/**
 * Leaf content strings.
 */
const String = (props) => {
    const { isLast, leaf, parent, text } = props;
    const editor = useEditor();
    const path = ReactEditor.findPath(editor, text);
    const parentPath = dist$5.Path.parent(path);
    // COMPAT: Render text inside void nodes with a zero-width space.
    // So the node can contain selection but the text is not visible.
    if (editor.isVoid(parent)) {
        return React__default.createElement(ZeroWidthString, { length: dist$5.Node.string(parent).length });
    }
    // COMPAT: If this is the last text node in an empty block, render a zero-
    // width space that will convert into a line break when copying and pasting
    // to support expected plain text.
    if (leaf.text === '' &&
        parent.children[parent.children.length - 1] === text &&
        !editor.isInline(parent) &&
        dist$5.Editor.string(editor, parentPath) === '') {
        return React__default.createElement(ZeroWidthString, { isLineBreak: true });
    }
    // COMPAT: If the text is empty, it's because it's on the edge of an inline
    // node, so we render a zero-width space so that the selection can be
    // inserted next to it still.
    if (leaf.text === '') {
        return React__default.createElement(ZeroWidthString, null);
    }
    // COMPAT: Browsers will collapse trailing new lines at the end of blocks,
    // so we need to add an extra trailing new lines to prevent that.
    if (isLast && leaf.text.slice(-1) === '\n') {
        return React__default.createElement(TextString, { isTrailing: true, text: leaf.text });
    }
    return React__default.createElement(TextString, { text: leaf.text });
};
/**
 * Leaf strings with text in them.
 */
const TextString = (props) => {
    const { text, isTrailing = false } = props;
    return (React__default.createElement("span", { "data-slate-string": true },
        text,
        isTrailing ? '\n' : null));
};
/**
 * Leaf strings without text, render as zero-width strings.
 */
const ZeroWidthString = (props) => {
    const { length = 0, isLineBreak = false } = props;
    return (React__default.createElement("span", { "data-slate-zero-width": isLineBreak ? 'n' : 'z', "data-slate-length": length },
        '\uFEFF',
        isLineBreak ? React__default.createElement("br", null) : null));
};

/**
 * Two weak maps that allow us rebuild a path given a node. They are populated
 * at render time such that after a render occurs we can always backtrack.
 */
var NODE_TO_INDEX = new WeakMap();
var NODE_TO_PARENT = new WeakMap();
/**
 * Weak maps that allow us to go between Slate nodes and DOM nodes. These
 * are used to resolve DOM event-related logic into Slate actions.
 */

var EDITOR_TO_ELEMENT = new WeakMap();
var ELEMENT_TO_NODE = new WeakMap();
var KEY_TO_ELEMENT = new WeakMap();
var NODE_TO_ELEMENT = new WeakMap();
var NODE_TO_KEY = new WeakMap();
/**
 * Weak maps for storing editor-related state.
 */

var IS_READ_ONLY = new WeakMap();
var IS_FOCUSED = new WeakMap();
/**
 * Weak map for associating the context `onChange` context with the plugin.
 */

var EDITOR_TO_ON_CHANGE = new WeakMap();
/**
 * Symbols.
 */

var PLACEHOLDER_SYMBOL = Symbol('placeholder');

/**
 * Individual leaves in a text node with unique formatting.
 */
const Leaf = (props) => {
    const { leaf, isLast, text, parent, renderLeaf = (props) => React__default.createElement(DefaultLeaf, Object.assign({}, props)), } = props;
    let children = (React__default.createElement(String, { isLast: isLast, leaf: leaf, parent: parent, text: text }));
    if (leaf[PLACEHOLDER_SYMBOL]) {
        children = (React__default.createElement(React__default.Fragment, null,
            React__default.createElement("span", { contentEditable: false, style: {
                    pointerEvents: 'none',
                    display: 'inline-block',
                    verticalAlign: 'text-top',
                    width: '0',
                    maxWidth: '100%',
                    whiteSpace: 'nowrap',
                    opacity: '0.333',
                } }, leaf.placeholder),
            children));
    }
    // COMPAT: Having the `data-` attributes on these leaf elements ensures that
    // in certain misbehaving browsers they aren't weirdly cloned/destroyed by
    // contenteditable behaviors. (2019/05/08)
    const attributes = {
        'data-slate-leaf': true,
    };
    return renderLeaf({ attributes, children, leaf, text });
};
const MemoizedLeaf = React__default.memo(Leaf, (prev, next) => {
    return (next.parent === prev.parent &&
        next.isLast === prev.isLast &&
        next.renderLeaf === prev.renderLeaf &&
        next.text === prev.text &&
        dist$5.Text.matches(next.leaf, prev.leaf));
});
/**
 * The default custom leaf renderer.
 */
const DefaultLeaf = (props) => {
    const { attributes, children } = props;
    return React__default.createElement("span", Object.assign({}, attributes), children);
};

/**
 * Prevent warning on SSR by falling back to useEffect when window is not defined
 */

var useIsomorphicLayoutEffect = typeof window !== 'undefined' ? React.useLayoutEffect : React.useEffect;

/**
 * Text.
 */
const Text = (props) => {
    const { decorations, isLast, parent, renderLeaf, text } = props;
    const editor = useEditor();
    const ref = React.useRef(null);
    const leaves = dist$5.Text.decorations(text, decorations);
    const key = ReactEditor.findKey(editor, text);
    const children = [];
    for (let i = 0; i < leaves.length; i++) {
        const leaf = leaves[i];
        children.push(React__default.createElement(MemoizedLeaf, { isLast: isLast && i === leaves.length - 1, key: `${key.id}-${i}`, leaf: leaf, text: text, parent: parent, renderLeaf: renderLeaf }));
    }
    // Update element-related weak maps with the DOM element ref.
    useIsomorphicLayoutEffect(() => {
        if (ref.current) {
            KEY_TO_ELEMENT.set(key, ref.current);
            NODE_TO_ELEMENT.set(text, ref.current);
            ELEMENT_TO_NODE.set(ref.current, text);
        }
        else {
            KEY_TO_ELEMENT.delete(key);
            NODE_TO_ELEMENT.delete(text);
        }
    });
    return (React__default.createElement("span", { "data-slate-node": "text", ref: ref }, children));
};
const MemoizedText = React__default.memo(Text, (prev, next) => {
    return (next.parent === prev.parent &&
        next.isLast === prev.isLast &&
        next.renderLeaf === prev.renderLeaf &&
        next.text === prev.text);
});

/**
 * A React context for sharing the `selected` state of an element.
 */

var SelectedContext = React.createContext(false);
/**
 * Get the current `selected` state of an element.
 */

var useSelected = () => {
  return React.useContext(SelectedContext);
};

/**
 * Element.
 */
const Element = (props) => {
    const { decorate, decorations, element, renderElement = (p) => React__default.createElement(DefaultElement, Object.assign({}, p)), renderLeaf, selection, } = props;
    const ref = React.useRef(null);
    const editor = useEditor();
    const readOnly = useReadOnly();
    const isInline = editor.isInline(element);
    const key = ReactEditor.findKey(editor, element);
    let children = (React__default.createElement(Children, { decorate: decorate, decorations: decorations, node: element, renderElement: renderElement, renderLeaf: renderLeaf, selection: selection }));
    // Attributes that the developer must mix into the element in their
    // custom node renderer component.
    const attributes = {
        'data-slate-node': 'element',
        ref,
    };
    if (isInline) {
        attributes['data-slate-inline'] = true;
    }
    // If it's a block node with inline children, add the proper `dir` attribute
    // for text direction.
    if (!isInline && dist$5.Editor.hasInlines(editor, element)) {
        const text = dist$5.Node.string(element);
        const dir = getDirection(text);
        if (dir === 'rtl') {
            attributes.dir = dir;
        }
    }
    // If it's a void node, wrap the children in extra void-specific elements.
    if (dist$5.Editor.isVoid(editor, element)) {
        attributes['data-slate-void'] = true;
        if (!readOnly && isInline) {
            attributes.contentEditable = false;
        }
        const Tag = isInline ? 'span' : 'div';
        const [[text]] = dist$5.Node.texts(element);
        children = readOnly ? null : (React__default.createElement(Tag, { "data-slate-spacer": true, style: {
                height: '0',
                color: 'transparent',
                outline: 'none',
                position: 'absolute',
            } },
            React__default.createElement(MemoizedText, { decorations: [], isLast: false, parent: element, text: text })));
        NODE_TO_INDEX.set(text, 0);
        NODE_TO_PARENT.set(text, element);
    }
    // Update element-related weak maps with the DOM element ref.
    useIsomorphicLayoutEffect(() => {
        if (ref.current) {
            KEY_TO_ELEMENT.set(key, ref.current);
            NODE_TO_ELEMENT.set(element, ref.current);
            ELEMENT_TO_NODE.set(ref.current, element);
        }
        else {
            KEY_TO_ELEMENT.delete(key);
            NODE_TO_ELEMENT.delete(element);
        }
    });
    return (React__default.createElement(SelectedContext.Provider, { value: !!selection }, renderElement({ attributes, children, element })));
};
const MemoizedElement = React__default.memo(Element, (prev, next) => {
    return (prev.decorate === next.decorate &&
        prev.element === next.element &&
        prev.renderElement === next.renderElement &&
        prev.renderLeaf === next.renderLeaf &&
        isRangeListEqual(prev.decorations, next.decorations) &&
        (prev.selection === next.selection ||
            (!!prev.selection &&
                !!next.selection &&
                dist$5.Range.equals(prev.selection, next.selection))));
});
/**
 * The default element renderer.
 */
const DefaultElement = (props) => {
    const { attributes, children, element } = props;
    const editor = useEditor();
    const Tag = editor.isInline(element) ? 'span' : 'div';
    return (React__default.createElement(Tag, Object.assign({}, attributes, { style: { position: 'relative' } }), children));
};
/**
 * Check if a list of ranges is equal to another.
 *
 * PERF: this requires the two lists to also have the ranges inside them in the
 * same order, but this is an okay constraint for us since decorations are
 * kept in order, and the odd case where they aren't is okay to re-render for.
 */
const isRangeListEqual = (list, another) => {
    if (list.length !== another.length) {
        return false;
    }
    for (let i = 0; i < list.length; i++) {
        const range = list[i];
        const other = another[i];
        if (!dist$5.Range.equals(range, other)) {
            return false;
        }
    }
    return true;
};

/**
 * A React context for sharing the editor object.
 */
const EditorContext = React.createContext(null);
/**
 * Get the current editor object from the React context.
 */
const useEditor = () => {
    const editor = React.useContext(EditorContext);
    if (!editor) {
        throw new Error(`The \`useEditor\` hook must be used inside the <Slate> component's context.`);
    }
    return editor;
};

/**
 * Children.
 */
const Children = (props) => {
    const { decorate, decorations, node, renderElement, renderLeaf, selection, } = props;
    const editor = useEditor();
    const path = ReactEditor.findPath(editor, node);
    const children = [];
    const isLeafBlock = dist$5.Element.isElement(node) &&
        !editor.isInline(node) &&
        dist$5.Editor.hasInlines(editor, node);
    for (let i = 0; i < node.children.length; i++) {
        const p = path.concat(i);
        const n = node.children[i];
        const key = ReactEditor.findKey(editor, n);
        const range = dist$5.Editor.range(editor, p);
        const sel = selection && dist$5.Range.intersection(range, selection);
        const ds = decorate([n, p]);
        for (const dec of decorations) {
            const d = dist$5.Range.intersection(dec, range);
            if (d) {
                ds.push(d);
            }
        }
        if (dist$5.Element.isElement(n)) {
            children.push(React__default.createElement(MemoizedElement, { decorate: decorate, decorations: ds, element: n, key: key.id, renderElement: renderElement, renderLeaf: renderLeaf, selection: sel }));
        }
        else {
            children.push(React__default.createElement(MemoizedText, { decorations: ds, key: key.id, isLast: isLeafBlock && i === node.children.length - 1, parent: node, renderLeaf: renderLeaf, text: n }));
        }
        NODE_TO_INDEX.set(n, i);
        NODE_TO_PARENT.set(n, node);
    }
    return React__default.createElement(React__default.Fragment, null, children);
};

var IS_IOS = typeof navigator !== 'undefined' && typeof window !== 'undefined' && /iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream;
var IS_APPLE = typeof navigator !== 'undefined' && /Mac OS X/.test(navigator.userAgent);
var IS_FIREFOX = typeof navigator !== 'undefined' && /^(?!.*Seamonkey)(?=.*Firefox).*/i.test(navigator.userAgent);
var IS_SAFARI = typeof navigator !== 'undefined' && /Version\/[\d\.]+.*Safari/.test(navigator.userAgent);

/**
 * Hotkey mappings for each platform.
 */

var HOTKEYS = {
  bold: 'mod+b',
  compose: ['down', 'left', 'right', 'up', 'backspace', 'enter'],
  moveBackward: 'left',
  moveForward: 'right',
  moveWordBackward: 'ctrl+left',
  moveWordForward: 'ctrl+right',
  deleteBackward: 'shift?+backspace',
  deleteForward: 'shift?+delete',
  extendBackward: 'shift+left',
  extendForward: 'shift+right',
  italic: 'mod+i',
  splitBlock: 'shift?+enter',
  undo: 'mod+z'
};
var APPLE_HOTKEYS = {
  moveLineBackward: 'opt+up',
  moveLineForward: 'opt+down',
  moveWordBackward: 'opt+left',
  moveWordForward: 'opt+right',
  deleteBackward: ['ctrl+backspace', 'ctrl+h'],
  deleteForward: ['ctrl+delete', 'ctrl+d'],
  deleteLineBackward: 'cmd+shift?+backspace',
  deleteLineForward: ['cmd+shift?+delete', 'ctrl+k'],
  deleteWordBackward: 'opt+shift?+backspace',
  deleteWordForward: 'opt+shift?+delete',
  extendLineBackward: 'opt+shift+up',
  extendLineForward: 'opt+shift+down',
  redo: 'cmd+shift+z',
  transposeCharacter: 'ctrl+t'
};
var WINDOWS_HOTKEYS = {
  deleteWordBackward: 'ctrl+shift?+backspace',
  deleteWordForward: 'ctrl+shift?+delete',
  redo: ['ctrl+y', 'ctrl+shift+z']
};
/**
 * Create a platform-aware hotkey checker.
 */

var create = key => {
  var generic = HOTKEYS[key];
  var apple = APPLE_HOTKEYS[key];
  var windows = WINDOWS_HOTKEYS[key];
  var isGeneric = generic && lib$1.isKeyHotkey(generic);
  var isApple = apple && lib$1.isKeyHotkey(apple);
  var isWindows = windows && lib$1.isKeyHotkey(windows);
  return event => {
    if (isGeneric && isGeneric(event)) return true;
    if (IS_APPLE && isApple && isApple(event)) return true;
    if (!IS_APPLE && isWindows && isWindows(event)) return true;
    return false;
  };
};
/**
 * Hotkeys.
 */


var Hotkeys = {
  isBold: create('bold'),
  isCompose: create('compose'),
  isMoveBackward: create('moveBackward'),
  isMoveForward: create('moveForward'),
  isDeleteBackward: create('deleteBackward'),
  isDeleteForward: create('deleteForward'),
  isDeleteLineBackward: create('deleteLineBackward'),
  isDeleteLineForward: create('deleteLineForward'),
  isDeleteWordBackward: create('deleteWordBackward'),
  isDeleteWordForward: create('deleteWordForward'),
  isExtendBackward: create('extendBackward'),
  isExtendForward: create('extendForward'),
  isExtendLineBackward: create('extendLineBackward'),
  isExtendLineForward: create('extendLineForward'),
  isItalic: create('italic'),
  isMoveLineBackward: create('moveLineBackward'),
  isMoveLineForward: create('moveLineForward'),
  isMoveWordBackward: create('moveWordBackward'),
  isMoveWordForward: create('moveWordForward'),
  isRedo: create('redo'),
  isSplitBlock: create('splitBlock'),
  isTransposeCharacter: create('transposeCharacter'),
  isUndo: create('undo')
};

/**
 * A React context for sharing the `readOnly` state of the editor.
 */

var ReadOnlyContext = React.createContext(false);
/**
 * Get the current `readOnly` state of the editor.
 */

var useReadOnly = () => {
  return React.useContext(ReadOnlyContext);
};

/**
 * A React context for sharing the editor object, in a way that re-renders the
 * context whenever changes occur.
 */
const SlateContext = React.createContext(null);
/**
 * Get the current editor object from the React context.
 */
const useSlate = () => {
    const context = React.useContext(SlateContext);
    if (!context) {
        throw new Error(`The \`useSlate\` hook must be used inside the <SlateProvider> component's context.`);
    }
    const [editor] = context;
    return editor;
};

/**
 * Types.
 */
/**
 * Check if a DOM node is a comment node.
 */

var isDOMComment = value => {
  return isDOMNode(value) && value.nodeType === 8;
};
/**
 * Check if a DOM node is an element node.
 */

var isDOMElement = value => {
  return isDOMNode(value) && value.nodeType === 1;
};
/**
 * Check if a value is a DOM node.
 */

var isDOMNode = value => {
  return value instanceof Node;
};
/**
 * Check if a DOM node is an element node.
 */

var isDOMText = value => {
  return isDOMNode(value) && value.nodeType === 3;
};
/**
 * Normalize a DOM point so that it always refers to a text node.
 */

var normalizeDOMPoint = domPoint => {
  var [node, offset] = domPoint; // If it's an element node, its offset refers to the index of its children
  // including comment nodes, so try to find the right text child node.

  if (isDOMElement(node) && node.childNodes.length) {
    var isLast = offset === node.childNodes.length;
    var direction = isLast ? 'backward' : 'forward';
    var index = isLast ? offset - 1 : offset;
    node = getEditableChild(node, index, direction); // If the node has children, traverse until we have a leaf node. Leaf nodes
    // can be either text nodes, or other void DOM nodes.

    while (isDOMElement(node) && node.childNodes.length) {
      var i = isLast ? node.childNodes.length - 1 : 0;
      node = getEditableChild(node, i, direction);
    } // Determine the new offset inside the text node.


    offset = isLast && node.textContent != null ? node.textContent.length : 0;
  } // Return the node and offset.


  return [node, offset];
};
/**
 * Get the nearest editable child at `index` in a `parent`, preferring
 * `direction`.
 */

var getEditableChild = (parent, index, direction) => {
  var {
    childNodes
  } = parent;
  var child = childNodes[index];
  var i = index;
  var triedForward = false;
  var triedBackward = false; // While the child is a comment node, or an element node with no children,
  // keep iterating to find a sibling non-void, non-comment node.

  while (isDOMComment(child) || isDOMElement(child) && child.childNodes.length === 0 || isDOMElement(child) && child.getAttribute('contenteditable') === 'false') {
    if (triedForward && triedBackward) {
      break;
    }

    if (i >= childNodes.length) {
      triedForward = true;
      i = index - 1;
      direction = 'backward';
      continue;
    }

    if (i < 0) {
      triedBackward = true;
      i = index + 1;
      direction = 'forward';
      continue;
    }

    child = childNodes[i];
    i += direction === 'forward' ? 1 : -1;
  }

  return child;
};

/**
 * Editable.
 */
const Editable = (props) => {
    const { autoFocus, decorate = defaultDecorate, onDOMBeforeInput: propsOnDOMBeforeInput, placeholder, readOnly = false, renderElement, renderLeaf, style = {}, as: Component = 'div', ...attributes } = props;
    const editor = useSlate();
    const ref = React.useRef(null);
    // Update internal state on each render.
    IS_READ_ONLY.set(editor, readOnly);
    // Keep track of some state for the event handler logic.
    const state = React.useMemo(() => ({
        isComposing: false,
        isUpdatingSelection: false,
        latestElement: null,
    }), []);
    // Update element-related weak maps with the DOM element ref.
    useIsomorphicLayoutEffect(() => {
        if (ref.current) {
            EDITOR_TO_ELEMENT.set(editor, ref.current);
            NODE_TO_ELEMENT.set(editor, ref.current);
            ELEMENT_TO_NODE.set(ref.current, editor);
        }
        else {
            NODE_TO_ELEMENT.delete(editor);
        }
    });
    // Attach a native DOM event handler for `selectionchange`, because React's
    // built-in `onSelect` handler doesn't fire for all selection changes. It's a
    // leaky polyfill that only fires on keypresses or clicks. Instead, we want to
    // fire for any change to the selection inside the editor. (2019/11/04)
    // https://github.com/facebook/react/issues/5785
    useIsomorphicLayoutEffect(() => {
        window.document.addEventListener('selectionchange', onDOMSelectionChange);
        return () => {
            window.document.removeEventListener('selectionchange', onDOMSelectionChange);
        };
    }, []);
    // Attach a native DOM event handler for `beforeinput` events, because React's
    // built-in `onBeforeInput` is actually a leaky polyfill that doesn't expose
    // real `beforeinput` events sadly... (2019/11/04)
    // https://github.com/facebook/react/issues/11211
    useIsomorphicLayoutEffect(() => {
        if (ref.current) {
            // @ts-ignore The `beforeinput` event isn't recognized.
            ref.current.addEventListener('beforeinput', onDOMBeforeInput);
        }
        return () => {
            if (ref.current) {
                // @ts-ignore The `beforeinput` event isn't recognized.
                ref.current.removeEventListener('beforeinput', onDOMBeforeInput);
            }
        };
    }, []);
    // Whenever the editor updates, make sure the DOM selection state is in sync.
    useIsomorphicLayoutEffect(() => {
        const { selection } = editor;
        const domSelection = window.getSelection();
        if (state.isComposing || !domSelection || !ReactEditor.isFocused(editor)) {
            return;
        }
        const hasDomSelection = domSelection.type !== 'None';
        // If the DOM selection is properly unset, we're done.
        if (!selection && !hasDomSelection) {
            return;
        }
        const newDomRange = selection && ReactEditor.toDOMRange(editor, selection);
        // If the DOM selection is already correct, we're done.
        if (hasDomSelection &&
            newDomRange &&
            isRangeEqual(domSelection.getRangeAt(0), newDomRange)) {
            return;
        }
        // Otherwise the DOM selection is out of sync, so update it.
        const el = ReactEditor.toDOMNode(editor, editor);
        state.isUpdatingSelection = true;
        domSelection.removeAllRanges();
        if (newDomRange) {
            domSelection.addRange(newDomRange);
            const leafEl = newDomRange.startContainer.parentElement;
            scrollIntoView(leafEl, { scrollMode: 'if-needed' });
        }
        setTimeout(() => {
            // COMPAT: In Firefox, it's not enough to create a range, you also need
            // to focus the contenteditable element too. (2016/11/16)
            if (newDomRange && IS_FIREFOX) {
                el.focus();
            }
            state.isUpdatingSelection = false;
        });
    });
    // The autoFocus TextareaHTMLAttribute doesn't do anything on a div, so it
    // needs to be manually focused.
    React.useEffect(() => {
        if (ref.current && autoFocus) {
            ref.current.focus();
        }
    }, [autoFocus]);
    // Listen on the native `beforeinput` event to get real "Level 2" events. This
    // is required because React's `beforeinput` is fake and never really attaches
    // to the real event sadly. (2019/11/01)
    // https://github.com/facebook/react/issues/11211
    const onDOMBeforeInput = React.useCallback((event) => {
        if (!readOnly &&
            hasEditableTarget(editor, event.target) &&
            !isDOMEventHandled(event, propsOnDOMBeforeInput)) {
            const { selection } = editor;
            const { inputType: type } = event;
            const data = event.dataTransfer || event.data || undefined;
            // These two types occur while a user is composing text and can't be
            // cancelled. Let them through and wait for the composition to end.
            if (type === 'insertCompositionText' ||
                type === 'deleteCompositionText') {
                return;
            }
            event.preventDefault();
            // COMPAT: For the deleting forward/backward input types we don't want
            // to change the selection because it is the range that will be deleted,
            // and those commands determine that for themselves.
            if (!type.startsWith('delete') || type.startsWith('deleteBy')) {
                const [targetRange] = event.getTargetRanges();
                if (targetRange) {
                    const range = ReactEditor.toSlateRange(editor, targetRange);
                    if (!selection || !dist$5.Range.equals(selection, range)) {
                        dist$5.Transforms.select(editor, range);
                    }
                }
            }
            // COMPAT: If the selection is expanded, even if the command seems like
            // a delete forward/backward command it should delete the selection.
            if (selection &&
                dist$5.Range.isExpanded(selection) &&
                type.startsWith('delete')) {
                dist$5.Editor.deleteFragment(editor);
                return;
            }
            switch (type) {
                case 'deleteByComposition':
                case 'deleteByCut':
                case 'deleteByDrag': {
                    dist$5.Editor.deleteFragment(editor);
                    break;
                }
                case 'deleteContent':
                case 'deleteContentForward': {
                    dist$5.Editor.deleteForward(editor);
                    break;
                }
                case 'deleteContentBackward': {
                    dist$5.Editor.deleteBackward(editor);
                    break;
                }
                case 'deleteEntireSoftLine': {
                    dist$5.Editor.deleteBackward(editor, { unit: 'line' });
                    dist$5.Editor.deleteForward(editor, { unit: 'line' });
                    break;
                }
                case 'deleteHardLineBackward': {
                    dist$5.Editor.deleteBackward(editor, { unit: 'block' });
                    break;
                }
                case 'deleteSoftLineBackward': {
                    dist$5.Editor.deleteBackward(editor, { unit: 'line' });
                    break;
                }
                case 'deleteHardLineForward': {
                    dist$5.Editor.deleteForward(editor, { unit: 'block' });
                    break;
                }
                case 'deleteSoftLineForward': {
                    dist$5.Editor.deleteForward(editor, { unit: 'line' });
                    break;
                }
                case 'deleteWordBackward': {
                    dist$5.Editor.deleteBackward(editor, { unit: 'word' });
                    break;
                }
                case 'deleteWordForward': {
                    dist$5.Editor.deleteForward(editor, { unit: 'word' });
                    break;
                }
                case 'insertLineBreak':
                case 'insertParagraph': {
                    dist$5.Editor.insertBreak(editor);
                    break;
                }
                case 'insertFromComposition':
                case 'insertFromDrop':
                case 'insertFromPaste':
                case 'insertFromYank':
                case 'insertReplacementText':
                case 'insertText': {
                    if (data instanceof DataTransfer) {
                        ReactEditor.insertData(editor, data);
                    }
                    else if (typeof data === 'string') {
                        dist$5.Editor.insertText(editor, data);
                    }
                    break;
                }
            }
        }
    }, []);
    // Listen on the native `selectionchange` event to be able to update any time
    // the selection changes. This is required because React's `onSelect` is leaky
    // and non-standard so it doesn't fire until after a selection has been
    // released. This causes issues in situations where another change happens
    // while a selection is being dragged.
    const onDOMSelectionChange = React.useCallback(debounce(() => {
        if (!readOnly && !state.isComposing && !state.isUpdatingSelection) {
            const { activeElement } = window.document;
            const el = ReactEditor.toDOMNode(editor, editor);
            const domSelection = window.getSelection();
            const domRange = domSelection &&
                domSelection.rangeCount > 0 &&
                domSelection.getRangeAt(0);
            if (activeElement === el) {
                state.latestElement = activeElement;
                IS_FOCUSED.set(editor, true);
            }
            else {
                IS_FOCUSED.delete(editor);
            }
            if (domRange &&
                hasEditableTarget(editor, domRange.startContainer) &&
                hasEditableTarget(editor, domRange.endContainer)) {
                const range = ReactEditor.toSlateRange(editor, domRange);
                dist$5.Transforms.select(editor, range);
            }
            else {
                dist$5.Transforms.deselect(editor);
            }
        }
    }, 100), []);
    const decorations = decorate([editor, []]);
    if (placeholder &&
        editor.children.length === 1 &&
        Array.from(dist$5.Node.texts(editor)).length === 1 &&
        dist$5.Node.string(editor) === '') {
        const start = dist$5.Editor.start(editor, []);
        decorations.push({
            [PLACEHOLDER_SYMBOL]: true,
            placeholder,
            anchor: start,
            focus: start,
        });
    }
    return (React__default.createElement(ReadOnlyContext.Provider, { value: readOnly },
        React__default.createElement(Component
        // COMPAT: The Grammarly Chrome extension works by changing the DOM
        // out from under `contenteditable` elements, which leads to weird
        // behaviors so we have to disable it like editor. (2017/04/24)
        , Object.assign({ "data-gramm": false, role: readOnly ? undefined : 'textbox' }, attributes, { 
            // COMPAT: Firefox doesn't support the `beforeinput` event, so we'd
            // have to use hacks to make these replacement-based features work.
            spellCheck: IS_FIREFOX ? undefined : attributes.spellCheck, autoCorrect: IS_FIREFOX ? undefined : attributes.autoCorrect, autoCapitalize: IS_FIREFOX ? undefined : attributes.autoCapitalize, "data-slate-editor": true, "data-slate-node": "value", contentEditable: readOnly ? undefined : true, suppressContentEditableWarning: true, ref: ref, style: {
                // Prevent the default outline styles.
                outline: 'none',
                // Preserve adjacent whitespace and new lines.
                whiteSpace: 'pre-wrap',
                // Allow words to break if they are too long.
                wordWrap: 'break-word',
                // Allow for passed-in styles to override anything.
                ...style,
            }, onBeforeInput: React.useCallback((event) => {
                // COMPAT: Firefox doesn't support the `beforeinput` event, so we
                // fall back to React's leaky polyfill instead just for it. It
                // only works for the `insertText` input type.
                if (IS_FIREFOX && !readOnly) {
                    event.preventDefault();
                    const text = event.data;
                    dist$5.Editor.insertText(editor, text);
                }
            }, [readOnly]), onBlur: React.useCallback((event) => {
                if (readOnly ||
                    state.isUpdatingSelection ||
                    !hasEditableTarget(editor, event.target) ||
                    isEventHandled(event, attributes.onBlur)) {
                    return;
                }
                // COMPAT: If the current `activeElement` is still the previous
                // one, this is due to the window being blurred when the tab
                // itself becomes unfocused, so we want to abort early to allow to
                // editor to stay focused when the tab becomes focused again.
                if (state.latestElement === window.document.activeElement) {
                    return;
                }
                const { relatedTarget } = event;
                const el = ReactEditor.toDOMNode(editor, editor);
                // COMPAT: The event should be ignored if the focus is returning
                // to the editor from an embedded editable element (eg. an <input>
                // element inside a void node).
                if (relatedTarget === el) {
                    return;
                }
                // COMPAT: The event should be ignored if the focus is moving from
                // the editor to inside a void node's spacer element.
                if (isDOMElement(relatedTarget) &&
                    relatedTarget.hasAttribute('data-slate-spacer')) {
                    return;
                }
                // COMPAT: The event should be ignored if the focus is moving to a
                // non- editable section of an element that isn't a void node (eg.
                // a list item of the check list example).
                if (relatedTarget != null &&
                    isDOMNode(relatedTarget) &&
                    ReactEditor.hasDOMNode(editor, relatedTarget)) {
                    const node = ReactEditor.toSlateNode(editor, relatedTarget);
                    if (dist$5.Element.isElement(node) && !editor.isVoid(node)) {
                        return;
                    }
                }
                IS_FOCUSED.delete(editor);
            }, [readOnly, attributes.onBlur]), onClick: React.useCallback((event) => {
                if (!readOnly &&
                    hasTarget(editor, event.target) &&
                    !isEventHandled(event, attributes.onClick) &&
                    isDOMNode(event.target)) {
                    const node = ReactEditor.toSlateNode(editor, event.target);
                    const path = ReactEditor.findPath(editor, node);
                    const start = dist$5.Editor.start(editor, path);
                    if (dist$5.Editor.void(editor, { at: start })) {
                        const range = dist$5.Editor.range(editor, start);
                        dist$5.Transforms.select(editor, range);
                    }
                }
            }, [readOnly, attributes.onClick]), onCompositionEnd: React.useCallback((event) => {
                if (hasEditableTarget(editor, event.target) &&
                    !isEventHandled(event, attributes.onCompositionEnd)) {
                    state.isComposing = false;
                    // COMPAT: In Chrome, `beforeinput` events for compositions
                    // aren't correct and never fire the "insertFromComposition"
                    // type that we need. So instead, insert whenever a composition
                    // ends since it will already have been committed to the DOM.
                    if (!IS_SAFARI && !IS_FIREFOX && event.data) {
                        dist$5.Editor.insertText(editor, event.data);
                    }
                }
            }, [attributes.onCompositionEnd]), onCompositionStart: React.useCallback((event) => {
                if (hasEditableTarget(editor, event.target) &&
                    !isEventHandled(event, attributes.onCompositionStart)) {
                    state.isComposing = true;
                }
            }, [attributes.onCompositionStart]), onCopy: React.useCallback((event) => {
                if (hasEditableTarget(editor, event.target) &&
                    !isEventHandled(event, attributes.onCopy)) {
                    event.preventDefault();
                    setFragmentData(event.clipboardData, editor);
                }
            }, [attributes.onCopy]), onCut: React.useCallback((event) => {
                if (!readOnly &&
                    hasEditableTarget(editor, event.target) &&
                    !isEventHandled(event, attributes.onCut)) {
                    event.preventDefault();
                    setFragmentData(event.clipboardData, editor);
                    const { selection } = editor;
                    if (selection && dist$5.Range.isExpanded(selection)) {
                        dist$5.Editor.deleteFragment(editor);
                    }
                }
            }, [readOnly, attributes.onCut]), onDragOver: React.useCallback((event) => {
                if (hasTarget(editor, event.target) &&
                    !isEventHandled(event, attributes.onDragOver)) {
                    // Only when the target is void, call `preventDefault` to signal
                    // that drops are allowed. Editable content is droppable by
                    // default, and calling `preventDefault` hides the cursor.
                    const node = ReactEditor.toSlateNode(editor, event.target);
                    if (dist$5.Editor.isVoid(editor, node)) {
                        event.preventDefault();
                    }
                }
            }, [attributes.onDragOver]), onDragStart: React.useCallback((event) => {
                if (hasTarget(editor, event.target) &&
                    !isEventHandled(event, attributes.onDragStart)) {
                    const node = ReactEditor.toSlateNode(editor, event.target);
                    const path = ReactEditor.findPath(editor, node);
                    const voidMatch = dist$5.Editor.void(editor, { at: path });
                    // If starting a drag on a void node, make sure it is selected
                    // so that it shows up in the selection's fragment.
                    if (voidMatch) {
                        const range = dist$5.Editor.range(editor, path);
                        dist$5.Transforms.select(editor, range);
                    }
                    setFragmentData(event.dataTransfer, editor);
                }
            }, [attributes.onDragStart]), onDrop: React.useCallback((event) => {
                if (hasTarget(editor, event.target) &&
                    !readOnly &&
                    !isEventHandled(event, attributes.onDrop)) {
                    // COMPAT: Firefox doesn't fire `beforeinput` events at all, and
                    // Chromium browsers don't properly fire them for files being
                    // dropped into a `contenteditable`. (2019/11/26)
                    // https://bugs.chromium.org/p/chromium/issues/detail?id=1028668
                    if (IS_FIREFOX ||
                        (!IS_SAFARI && event.dataTransfer.files.length > 0)) {
                        event.preventDefault();
                        const range = ReactEditor.findEventRange(editor, event);
                        const data = event.dataTransfer;
                        dist$5.Transforms.select(editor, range);
                        ReactEditor.insertData(editor, data);
                    }
                }
            }, [readOnly, attributes.onDrop]), onFocus: React.useCallback((event) => {
                if (!readOnly &&
                    !state.isUpdatingSelection &&
                    hasEditableTarget(editor, event.target) &&
                    !isEventHandled(event, attributes.onFocus)) {
                    const el = ReactEditor.toDOMNode(editor, editor);
                    state.latestElement = window.document.activeElement;
                    // COMPAT: If the editor has nested editable elements, the focus
                    // can go to them. In Firefox, this must be prevented because it
                    // results in issues with keyboard navigation. (2017/03/30)
                    if (IS_FIREFOX && event.target !== el) {
                        el.focus();
                        return;
                    }
                    IS_FOCUSED.set(editor, true);
                }
            }, [readOnly, attributes.onFocus]), onKeyDown: React.useCallback((event) => {
                if (!readOnly &&
                    hasEditableTarget(editor, event.target) &&
                    !isEventHandled(event, attributes.onKeyDown)) {
                    const { nativeEvent } = event;
                    const { selection } = editor;
                    // COMPAT: Since we prevent the default behavior on
                    // `beforeinput` events, the browser doesn't think there's ever
                    // any history stack to undo or redo, so we have to manage these
                    // hotkeys ourselves. (2019/11/06)
                    if (Hotkeys.isRedo(nativeEvent)) {
                        event.preventDefault();
                        if (editor.redo) {
                            editor.redo();
                        }
                        return;
                    }
                    if (Hotkeys.isUndo(nativeEvent)) {
                        event.preventDefault();
                        if (editor.undo) {
                            editor.undo();
                        }
                        return;
                    }
                    // COMPAT: Certain browsers don't handle the selection updates
                    // properly. In Chrome, the selection isn't properly extended.
                    // And in Firefox, the selection isn't properly collapsed.
                    // (2017/10/17)
                    if (Hotkeys.isMoveLineBackward(nativeEvent)) {
                        event.preventDefault();
                        dist$5.Transforms.move(editor, { unit: 'line', reverse: true });
                        return;
                    }
                    if (Hotkeys.isMoveLineForward(nativeEvent)) {
                        event.preventDefault();
                        dist$5.Transforms.move(editor, { unit: 'line' });
                        return;
                    }
                    if (Hotkeys.isExtendLineBackward(nativeEvent)) {
                        event.preventDefault();
                        dist$5.Transforms.move(editor, {
                            unit: 'line',
                            edge: 'focus',
                            reverse: true,
                        });
                        return;
                    }
                    if (Hotkeys.isExtendLineForward(nativeEvent)) {
                        event.preventDefault();
                        dist$5.Transforms.move(editor, { unit: 'line', edge: 'focus' });
                        return;
                    }
                    // COMPAT: If a void node is selected, or a zero-width text node
                    // adjacent to an inline is selected, we need to handle these
                    // hotkeys manually because browsers won't be able to skip over
                    // the void node with the zero-width space not being an empty
                    // string.
                    if (Hotkeys.isMoveBackward(nativeEvent)) {
                        event.preventDefault();
                        if (selection && dist$5.Range.isCollapsed(selection)) {
                            dist$5.Transforms.move(editor, { reverse: true });
                        }
                        else {
                            dist$5.Transforms.collapse(editor, { edge: 'start' });
                        }
                        return;
                    }
                    if (Hotkeys.isMoveForward(nativeEvent)) {
                        event.preventDefault();
                        if (selection && dist$5.Range.isCollapsed(selection)) {
                            dist$5.Transforms.move(editor);
                        }
                        else {
                            dist$5.Transforms.collapse(editor, { edge: 'end' });
                        }
                        return;
                    }
                    if (Hotkeys.isMoveWordBackward(nativeEvent)) {
                        event.preventDefault();
                        dist$5.Transforms.move(editor, { unit: 'word', reverse: true });
                        return;
                    }
                    if (Hotkeys.isMoveWordForward(nativeEvent)) {
                        event.preventDefault();
                        dist$5.Transforms.move(editor, { unit: 'word' });
                        return;
                    }
                    // COMPAT: Firefox doesn't support the `beforeinput` event, so we
                    // fall back to guessing at the input intention for hotkeys.
                    // COMPAT: In iOS, some of these hotkeys are handled in the
                    if (IS_FIREFOX) {
                        // We don't have a core behavior for these, but they change the
                        // DOM if we don't prevent them, so we have to.
                        if (Hotkeys.isBold(nativeEvent) ||
                            Hotkeys.isItalic(nativeEvent) ||
                            Hotkeys.isTransposeCharacter(nativeEvent)) {
                            event.preventDefault();
                            return;
                        }
                        if (Hotkeys.isSplitBlock(nativeEvent)) {
                            event.preventDefault();
                            dist$5.Editor.insertBreak(editor);
                            return;
                        }
                        if (Hotkeys.isDeleteBackward(nativeEvent)) {
                            event.preventDefault();
                            if (selection && dist$5.Range.isExpanded(selection)) {
                                dist$5.Editor.deleteFragment(editor);
                            }
                            else {
                                dist$5.Editor.deleteBackward(editor);
                            }
                            return;
                        }
                        if (Hotkeys.isDeleteForward(nativeEvent)) {
                            event.preventDefault();
                            if (selection && dist$5.Range.isExpanded(selection)) {
                                dist$5.Editor.deleteFragment(editor);
                            }
                            else {
                                dist$5.Editor.deleteForward(editor);
                            }
                            return;
                        }
                        if (Hotkeys.isDeleteLineBackward(nativeEvent)) {
                            event.preventDefault();
                            if (selection && dist$5.Range.isExpanded(selection)) {
                                dist$5.Editor.deleteFragment(editor);
                            }
                            else {
                                dist$5.Editor.deleteBackward(editor, { unit: 'line' });
                            }
                            return;
                        }
                        if (Hotkeys.isDeleteLineForward(nativeEvent)) {
                            event.preventDefault();
                            if (selection && dist$5.Range.isExpanded(selection)) {
                                dist$5.Editor.deleteFragment(editor);
                            }
                            else {
                                dist$5.Editor.deleteForward(editor, { unit: 'line' });
                            }
                            return;
                        }
                        if (Hotkeys.isDeleteWordBackward(nativeEvent)) {
                            event.preventDefault();
                            if (selection && dist$5.Range.isExpanded(selection)) {
                                dist$5.Editor.deleteFragment(editor);
                            }
                            else {
                                dist$5.Editor.deleteBackward(editor, { unit: 'word' });
                            }
                            return;
                        }
                        if (Hotkeys.isDeleteWordForward(nativeEvent)) {
                            event.preventDefault();
                            if (selection && dist$5.Range.isExpanded(selection)) {
                                dist$5.Editor.deleteFragment(editor);
                            }
                            else {
                                dist$5.Editor.deleteForward(editor, { unit: 'word' });
                            }
                            return;
                        }
                    }
                }
            }, [readOnly, attributes.onKeyDown]), onPaste: React.useCallback((event) => {
                // COMPAT: Firefox doesn't support the `beforeinput` event, so we
                // fall back to React's `onPaste` here instead.
                if (IS_FIREFOX &&
                    !readOnly &&
                    hasEditableTarget(editor, event.target) &&
                    !isEventHandled(event, attributes.onPaste)) {
                    event.preventDefault();
                    ReactEditor.insertData(editor, event.clipboardData);
                }
            }, [readOnly, attributes.onPaste]) }),
            React__default.createElement(Children, { decorate: decorate, decorations: decorations, node: editor, renderElement: renderElement, renderLeaf: renderLeaf, selection: editor.selection }))));
};
/**
 * A default memoized decorate function.
 */
const defaultDecorate = () => [];
/**
 * Check if two DOM range objects are equal.
 */
const isRangeEqual = (a, b) => {
    return ((a.startContainer === b.startContainer &&
        a.startOffset === b.startOffset &&
        a.endContainer === b.endContainer &&
        a.endOffset === b.endOffset) ||
        (a.startContainer === b.endContainer &&
            a.startOffset === b.endOffset &&
            a.endContainer === b.startContainer &&
            a.endOffset === b.startOffset));
};
/**
 * Check if the target is in the editor.
 */
const hasTarget = (editor, target) => {
    return isDOMNode(target) && ReactEditor.hasDOMNode(editor, target);
};
/**
 * Check if the target is editable and in the editor.
 */
const hasEditableTarget = (editor, target) => {
    return (isDOMNode(target) &&
        ReactEditor.hasDOMNode(editor, target, { editable: true }));
};
/**
 * Check if an event is overrided by a handler.
 */
const isEventHandled = (event, handler) => {
    if (!handler) {
        return false;
    }
    handler(event);
    return event.isDefaultPrevented() || event.isPropagationStopped();
};
/**
 * Check if a DOM event is overrided by a handler.
 */
const isDOMEventHandled = (event, handler) => {
    if (!handler) {
        return false;
    }
    handler(event);
    return event.defaultPrevented;
};
/**
 * Set the currently selected fragment to the clipboard.
 */
const setFragmentData = (dataTransfer, editor) => {
    const { selection } = editor;
    if (!selection) {
        return;
    }
    const [start, end] = dist$5.Range.edges(selection);
    const startVoid = dist$5.Editor.void(editor, { at: start.path });
    const endVoid = dist$5.Editor.void(editor, { at: end.path });
    if (dist$5.Range.isCollapsed(selection) && !startVoid) {
        return;
    }
    // Create a fake selection so that we can add a Base64-encoded copy of the
    // fragment to the HTML, to decode on future pastes.
    const domRange = ReactEditor.toDOMRange(editor, selection);
    let contents = domRange.cloneContents();
    let attach = contents.childNodes[0];
    // Make sure attach is non-empty, since empty nodes will not get copied.
    contents.childNodes.forEach(node => {
        if (node.textContent && node.textContent.trim() !== '') {
            attach = node;
        }
    });
    // COMPAT: If the end node is a void node, we need to move the end of the
    // range from the void node's spacer span, to the end of the void node's
    // content, since the spacer is before void's content in the DOM.
    if (endVoid) {
        const [voidNode] = endVoid;
        const r = domRange.cloneRange();
        const domNode = ReactEditor.toDOMNode(editor, voidNode);
        r.setEndAfter(domNode);
        contents = r.cloneContents();
    }
    // COMPAT: If the start node is a void node, we need to attach the encoded
    // fragment to the void node's content node instead of the spacer, because
    // attaching it to empty `<div>/<span>` nodes will end up having it erased by
    // most browsers. (2018/04/27)
    if (startVoid) {
        attach = contents.querySelector('[data-slate-spacer]');
    }
    // Remove any zero-width space spans from the cloned DOM so that they don't
    // show up elsewhere when pasted.
    Array.from(contents.querySelectorAll('[data-slate-zero-width]')).forEach(zw => {
        const isNewline = zw.getAttribute('data-slate-zero-width') === 'n';
        zw.textContent = isNewline ? '\n' : '';
    });
    // Set a `data-slate-fragment` attribute on a non-empty node, so it shows up
    // in the HTML, and can be used for intra-Slate pasting. If it's a text
    // node, wrap it in a `<span>` so we have something to set an attribute on.
    if (isDOMText(attach)) {
        const span = document.createElement('span');
        // COMPAT: In Chrome and Safari, if we don't add the `white-space` style
        // then leading and trailing spaces will be ignored. (2017/09/21)
        span.style.whiteSpace = 'pre';
        span.appendChild(attach);
        contents.appendChild(span);
        attach = span;
    }
    const fragment = dist$5.Node.fragment(editor, selection);
    const string = JSON.stringify(fragment);
    const encoded = window.btoa(encodeURIComponent(string));
    attach.setAttribute('data-slate-fragment', encoded);
    dataTransfer.setData('application/x-slate-fragment', encoded);
    // Add the content to a <div> so that we can get its inner HTML.
    const div = document.createElement('div');
    div.appendChild(contents);
    dataTransfer.setData('text/html', div.innerHTML);
    dataTransfer.setData('text/plain', getPlainText(div));
};
/**
 * Get a plaintext representation of the content of a node, accounting for block
 * elements which get a newline appended.
 */
const getPlainText = (domNode) => {
    let text = '';
    if (isDOMText(domNode) && domNode.nodeValue) {
        return domNode.nodeValue;
    }
    if (isDOMElement(domNode)) {
        for (const childNode of Array.from(domNode.childNodes)) {
            text += getPlainText(childNode);
        }
        const display = getComputedStyle(domNode).getPropertyValue('display');
        if (display === 'block' || display === 'list' || domNode.tagName === 'BR') {
            text += '\n';
        }
    }
    return text;
};

/**
 * An auto-incrementing identifier for keys.
 */
var n = 0;
/**
 * A class that keeps track of a key string. We use a full class here because we
 * want to be able to use them as keys in `WeakMap` objects.
 */

class Key {
  constructor() {
    this.id = "".concat(n++);
  }

}

var ReactEditor = {
  /**
   * Find a key for a Slate node.
   */
  findKey(editor, node) {
    var key = NODE_TO_KEY.get(node);

    if (!key) {
      key = new Key();
      NODE_TO_KEY.set(node, key);
    }

    return key;
  },

  /**
   * Find the path of Slate node.
   */
  findPath(editor, node) {
    var path = [];
    var child = node;

    while (true) {
      var parent = NODE_TO_PARENT.get(child);

      if (parent == null) {
        if (dist$5.Editor.isEditor(child)) {
          return path;
        } else {
          break;
        }
      }

      var i = NODE_TO_INDEX.get(child);

      if (i == null) {
        break;
      }

      path.unshift(i);
      child = parent;
    }

    throw new Error("Unable to find the path for Slate node: ".concat(JSON.stringify(node)));
  },

  /**
   * Check if the editor is focused.
   */
  isFocused(editor) {
    return !!IS_FOCUSED.get(editor);
  },

  /**
   * Check if the editor is in read-only mode.
   */
  isReadOnly(editor) {
    return !!IS_READ_ONLY.get(editor);
  },

  /**
   * Blur the editor.
   */
  blur(editor) {
    var el = ReactEditor.toDOMNode(editor, editor);
    IS_FOCUSED.set(editor, false);

    if (window.document.activeElement === el) {
      el.blur();
    }
  },

  /**
   * Focus the editor.
   */
  focus(editor) {
    var el = ReactEditor.toDOMNode(editor, editor);
    IS_FOCUSED.set(editor, true);

    if (window.document.activeElement !== el) {
      el.focus({
        preventScroll: true
      });
    }
  },

  /**
   * Deselect the editor.
   */
  deselect(editor) {
    var {
      selection
    } = editor;
    var domSelection = window.getSelection();

    if (domSelection && domSelection.rangeCount > 0) {
      domSelection.removeAllRanges();
    }

    if (selection) {
      dist$5.Transforms.deselect(editor);
    }
  },

  /**
   * Check if a DOM node is within the editor.
   */
  hasDOMNode(editor, target) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var {
      editable = false
    } = options;
    var el = ReactEditor.toDOMNode(editor, editor);
    var element; // COMPAT: In Firefox, reading `target.nodeType` will throw an error if
    // target is originating from an internal "restricted" element (e.g. a
    // stepper arrow on a number input). (2018/05/04)
    // https://github.com/ianstormtaylor/slate/issues/1819

    try {
      element = isDOMElement(target) ? target : target.parentElement;
    } catch (err) {
      if (!err.message.includes('Permission denied to access property "nodeType"')) {
        throw err;
      }
    }

    if (!element) {
      return false;
    }

    return element.closest("[data-slate-editor]") === el && (!editable || el.isContentEditable);
  },

  /**
   * Insert data from a `DataTransfer` into the editor.
   */
  insertData(editor, data) {
    editor.insertData(data);
  },

  /**
   * Find the native DOM element from a Slate node.
   */
  toDOMNode(editor, node) {
    var domNode = dist$5.Editor.isEditor(node) ? EDITOR_TO_ELEMENT.get(editor) : KEY_TO_ELEMENT.get(ReactEditor.findKey(editor, node));

    if (!domNode) {
      throw new Error("Cannot resolve a DOM node from Slate node: ".concat(JSON.stringify(node)));
    }

    return domNode;
  },

  /**
   * Find a native DOM selection point from a Slate point.
   */
  toDOMPoint(editor, point) {
    var [node] = dist$5.Editor.node(editor, point.path);
    var el = ReactEditor.toDOMNode(editor, node);
    var domPoint; // If we're inside a void node, force the offset to 0, otherwise the zero
    // width spacing character will result in an incorrect offset of 1

    if (dist$5.Editor.void(editor, {
      at: point
    })) {
      point = {
        path: point.path,
        offset: 0
      };
    } // For each leaf, we need to isolate its content, which means filtering
    // to its direct text and zero-width spans. (We have to filter out any
    // other siblings that may have been rendered alongside them.)


    var selector = "[data-slate-string], [data-slate-zero-width]";
    var texts = Array.from(el.querySelectorAll(selector));
    var start = 0;

    for (var text of texts) {
      var domNode = text.childNodes[0];

      if (domNode == null || domNode.textContent == null) {
        continue;
      }

      var {
        length
      } = domNode.textContent;
      var attr = text.getAttribute('data-slate-length');
      var trueLength = attr == null ? length : parseInt(attr, 10);
      var end = start + trueLength;

      if (point.offset <= end) {
        var offset = Math.min(length, Math.max(0, point.offset - start));
        domPoint = [domNode, offset];
        break;
      }

      start = end;
    }

    if (!domPoint) {
      throw new Error("Cannot resolve a DOM point from Slate point: ".concat(JSON.stringify(point)));
    }

    return domPoint;
  },

  /**
   * Find a native DOM range from a Slate `range`.
   */
  toDOMRange(editor, range) {
    var {
      anchor,
      focus
    } = range;
    var domAnchor = ReactEditor.toDOMPoint(editor, anchor);
    var domFocus = dist$5.Range.isCollapsed(range) ? domAnchor : ReactEditor.toDOMPoint(editor, focus);
    var domRange = window.document.createRange();
    var start = dist$5.Range.isBackward(range) ? domFocus : domAnchor;
    var end = dist$5.Range.isBackward(range) ? domAnchor : domFocus;
    domRange.setStart(start[0], start[1]);
    domRange.setEnd(end[0], end[1]);
    return domRange;
  },

  /**
   * Find a Slate node from a native DOM `element`.
   */
  toSlateNode(editor, domNode) {
    var domEl = isDOMElement(domNode) ? domNode : domNode.parentElement;

    if (domEl && !domEl.hasAttribute('data-slate-node')) {
      domEl = domEl.closest("[data-slate-node]");
    }

    var node = domEl ? ELEMENT_TO_NODE.get(domEl) : null;

    if (!node) {
      throw new Error("Cannot resolve a Slate node from DOM node: ".concat(domEl));
    }

    return node;
  },

  /**
   * Get the target range from a DOM `event`.
   */
  findEventRange(editor, event) {
    if ('nativeEvent' in event) {
      event = event.nativeEvent;
    }

    var {
      clientX: x,
      clientY: y,
      target
    } = event;

    if (x == null || y == null) {
      throw new Error("Cannot resolve a Slate range from a DOM event: ".concat(event));
    }

    var node = ReactEditor.toSlateNode(editor, event.target);
    var path = ReactEditor.findPath(editor, node); // If the drop target is inside a void node, move it into either the
    // next or previous node, depending on which side the `x` and `y`
    // coordinates are closest to.

    if (dist$5.Editor.isVoid(editor, node)) {
      var rect = target.getBoundingClientRect();
      var isPrev = editor.isInline(node) ? x - rect.left < rect.left + rect.width - x : y - rect.top < rect.top + rect.height - y;
      var edge = dist$5.Editor.point(editor, path, {
        edge: isPrev ? 'start' : 'end'
      });
      var point = isPrev ? dist$5.Editor.before(editor, edge) : dist$5.Editor.after(editor, edge);

      if (point) {
        var _range = dist$5.Editor.range(editor, point);

        return _range;
      }
    } // Else resolve a range from the caret position where the drop occured.


    var domRange;
    var {
      document
    } = window; // COMPAT: In Firefox, `caretRangeFromPoint` doesn't exist. (2016/07/25)

    if (document.caretRangeFromPoint) {
      domRange = document.caretRangeFromPoint(x, y);
    } else {
      var position = document.caretPositionFromPoint(x, y);

      if (position) {
        domRange = document.createRange();
        domRange.setStart(position.offsetNode, position.offset);
        domRange.setEnd(position.offsetNode, position.offset);
      }
    }

    if (!domRange) {
      throw new Error("Cannot resolve a Slate range from a DOM event: ".concat(event));
    } // Resolve a Slate range from the DOM range.


    var range = ReactEditor.toSlateRange(editor, domRange);
    return range;
  },

  /**
   * Find a Slate point from a DOM selection's `domNode` and `domOffset`.
   */
  toSlatePoint(editor, domPoint) {
    var [nearestNode, nearestOffset] = normalizeDOMPoint(domPoint);
    var parentNode = nearestNode.parentNode;
    var textNode = null;
    var offset = 0;

    if (parentNode) {
      var voidNode = parentNode.closest('[data-slate-void="true"]');
      var leafNode = parentNode.closest('[data-slate-leaf]');
      var domNode = null; // Calculate how far into the text node the `nearestNode` is, so that we
      // can determine what the offset relative to the text node is.

      if (leafNode) {
        textNode = leafNode.closest('[data-slate-node="text"]');
        var range = window.document.createRange();
        range.setStart(textNode, 0);
        range.setEnd(nearestNode, nearestOffset);
        var contents = range.cloneContents();
        var removals = [...contents.querySelectorAll('[data-slate-zero-width]'), ...contents.querySelectorAll('[contenteditable=false]')];
        removals.forEach(el => {
          el.parentNode.removeChild(el);
        }); // COMPAT: Edge has a bug where Range.prototype.toString() will
        // convert \n into \r\n. The bug causes a loop when slate-react
        // attempts to reposition its cursor to match the native position. Use
        // textContent.length instead.
        // https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/10291116/

        offset = contents.textContent.length;
        domNode = textNode;
      } else if (voidNode) {
        // For void nodes, the element with the offset key will be a cousin, not an
        // ancestor, so find it by going down from the nearest void parent.
        leafNode = voidNode.querySelector('[data-slate-leaf]');
        textNode = leafNode.closest('[data-slate-node="text"]');
        domNode = leafNode;
        offset = domNode.textContent.length;
      } // COMPAT: If the parent node is a Slate zero-width space, editor is
      // because the text node should have no characters. However, during IME
      // composition the ASCII characters will be prepended to the zero-width
      // space, so subtract 1 from the offset to account for the zero-width
      // space character.


      if (domNode && offset === domNode.textContent.length && parentNode.hasAttribute('data-slate-zero-width')) {
        offset--;
      }
    }

    if (!textNode) {
      throw new Error("Cannot resolve a Slate point from DOM point: ".concat(domPoint));
    } // COMPAT: If someone is clicking from one Slate editor into another,
    // the select event fires twice, once for the old editor's `element`
    // first, and then afterwards for the correct `element`. (2017/03/03)


    var slateNode = ReactEditor.toSlateNode(editor, textNode);
    var path = ReactEditor.findPath(editor, slateNode);
    return {
      path,
      offset
    };
  },

  /**
   * Find a Slate range from a DOM range or selection.
   */
  toSlateRange(editor, domRange) {
    var el = domRange instanceof Selection ? domRange.anchorNode : domRange.startContainer;
    var anchorNode;
    var anchorOffset;
    var focusNode;
    var focusOffset;
    var isCollapsed;

    if (el) {
      if (domRange instanceof Selection) {
        anchorNode = domRange.anchorNode;
        anchorOffset = domRange.anchorOffset;
        focusNode = domRange.focusNode;
        focusOffset = domRange.focusOffset;
        isCollapsed = domRange.isCollapsed;
      } else {
        anchorNode = domRange.startContainer;
        anchorOffset = domRange.startOffset;
        focusNode = domRange.endContainer;
        focusOffset = domRange.endOffset;
        isCollapsed = domRange.collapsed;
      }
    }

    if (anchorNode == null || focusNode == null || anchorOffset == null || focusOffset == null) {
      throw new Error("Cannot resolve a Slate range from DOM range: ".concat(domRange));
    }

    var anchor = ReactEditor.toSlatePoint(editor, [anchorNode, anchorOffset]);
    var focus = isCollapsed ? anchor : ReactEditor.toSlatePoint(editor, [focusNode, focusOffset]);
    return {
      anchor,
      focus
    };
  }

};

/**
 * A React context for sharing the `focused` state of the editor.
 */

var FocusedContext = React.createContext(false);
/**
 * Get the current `focused` state of the editor.
 */

var useFocused = () => {
  return React.useContext(FocusedContext);
};

/**
 * A wrapper around the provider to handle `onChange` events, because the editor
 * is a mutable singleton so it won't ever register as "changed" otherwise.
 */
const Slate = (props) => {
    const { editor, children, onChange, value, ...rest } = props;
    const [key, setKey] = React.useState(0);
    const context = React.useMemo(() => {
        editor.children = value;
        Object.assign(editor, rest);
        return [editor];
    }, [key, value, ...Object.values(rest)]);
    const onContextChange = React.useCallback(() => {
        onChange(editor.children);
        setKey(key + 1);
    }, [key, onChange]);
    EDITOR_TO_ON_CHANGE.set(editor, onContextChange);
    return (React__default.createElement(SlateContext.Provider, { value: context },
        React__default.createElement(EditorContext.Provider, { value: editor },
            React__default.createElement(FocusedContext.Provider, { value: ReactEditor.isFocused(editor) }, children))));
};

/**
 * `withReact` adds React and DOM specific behaviors to the editor.
 */

var withReact = editor => {
  var e = editor;
  var {
    apply,
    onChange
  } = e;

  e.apply = op => {
    var matches = [];

    switch (op.type) {
      case 'insert_text':
      case 'remove_text':
      case 'set_node':
        {
          for (var [node, path] of dist$5.Editor.levels(e, {
            at: op.path
          })) {
            var key = ReactEditor.findKey(e, node);
            matches.push([path, key]);
          }

          break;
        }

      case 'insert_node':
      case 'remove_node':
      case 'merge_node':
      case 'split_node':
        {
          for (var [_node, _path] of dist$5.Editor.levels(e, {
            at: dist$5.Path.parent(op.path)
          })) {
            var _key = ReactEditor.findKey(e, _node);

            matches.push([_path, _key]);
          }

          break;
        }
    }

    apply(op);

    for (var [_path2, _key2] of matches) {
      var [_node2] = dist$5.Editor.node(e, _path2);
      NODE_TO_KEY.set(_node2, _key2);
    }
  };

  e.insertData = data => {
    var fragment = data.getData('application/x-slate-fragment');

    if (fragment) {
      var decoded = decodeURIComponent(window.atob(fragment));
      var parsed = JSON.parse(decoded);
      dist$5.Transforms.insertFragment(e, parsed);
      return;
    }

    var text = data.getData('text/plain');

    if (text) {
      var lines = text.split('\n');
      var split = false;

      for (var line of lines) {
        if (split) {
          dist$5.Transforms.splitNodes(e);
        }

        dist$5.Transforms.insertText(e, line);
        split = true;
      }
    }
  };

  e.onChange = () => {
    // COMPAT: React doesn't batch `setState` hook calls, which means that the
    // children and selection can get out of sync for one render pass. So we
    // have to use this unstable API to ensure it batches them. (2019/12/03)
    // https://github.com/facebook/react/issues/14259#issuecomment-439702367
    ReactDOM.unstable_batchedUpdates(() => {
      var onContextChange = EDITOR_TO_ON_CHANGE.get(e);

      if (onContextChange) {
        onContextChange();
      }

      onChange();
    });
  };

  return e;
};

exports.DefaultElement = DefaultElement;
exports.DefaultLeaf = DefaultLeaf;
exports.Editable = Editable;
exports.ReactEditor = ReactEditor;
exports.Slate = Slate;
exports.useEditor = useEditor;
exports.useFocused = useFocused;
exports.useReadOnly = useReadOnly;
exports.useSelected = useSelected;
exports.useSlate = useSlate;
exports.withReact = withReact;

});

unwrapExports(dist$6);
var dist_1$4 = dist$6.DefaultElement;
var dist_2$4 = dist$6.DefaultLeaf;
var dist_3$4 = dist$6.Editable;
var dist_4$2 = dist$6.ReactEditor;
var dist_5$2 = dist$6.Slate;
var dist_6$2 = dist$6.useEditor;
var dist_7$1 = dist$6.useFocused;
var dist_8$1 = dist$6.useReadOnly;
var dist_9$1 = dist$6.useSelected;
var dist_10$1 = dist$6.useSlate;
var dist_11$1 = dist$6.withReact;

var RichTextEditorForSlate = function RichTextEditorForSlate() {
  var editor = useMemo(function () {
    return dist_11$1(dist_15());
  }, []);

  var _useState = useState([{
    type: 'paragraph',
    children: [{
      text: 'A line of text in a paragraph.'
    }]
  }]),
      _useState2 = _slicedToArray(_useState, 2),
      value = _useState2[0],
      setValue = _useState2[1];

  return (// Add the editable component inside the context.
    React.createElement(dist_5$2, {
      editor: editor,
      value: value,
      onChange: function onChange(value) {
        console.log('value: ', value);
        setValue(value);
      }
    }, React.createElement(dist_3$4, null))
  );
}; // class RichTextEditorForSlate extends React.Component<RichTextEditorForSlateProps, RichTextEditorForSlateState> {

export { BarftEditorPage as BraftEditor, RichTextEditor, RichTextEditorForSlate };
//# sourceMappingURL=index.js.map