scribe-plugin-sanitizer.js

(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
    define('html-janitor', factory);
  } else if (typeof exports === 'object') {
    module.exports = factory();
  } else {
    root.HTMLJanitor = factory();
  }
}(this, function () {

  /**
   * @param {Object} config.tags Dictionary of allowed tags.
   * @param {boolean} config.keepNestedBlockElements Default false.
   */
  function HTMLJanitor(config) {

    var tagDefinitions = config['tags'];
    var tags = Object.keys(tagDefinitions);

    var validConfigValues = tags
      .map(function(k) { return typeof tagDefinitions[k]; })
      .every(function(type) { return type === 'object' || type === 'boolean' || type === 'function'; });

    if(!validConfigValues) {
      throw new Error("The configuration was invalid");
    }

    this.config = config;
  }

  // TODO: not exhaustive?
  var blockElementNames = ['P', 'LI', 'TD', 'TH', 'DIV', 'H1', 'H2', 'H3', 'H4', 'H5', 'H6', 'PRE'];
  function isBlockElement(node) {
    return blockElementNames.indexOf(node.nodeName) !== -1;
  }

  var inlineElementNames = ['A', 'B', 'STRONG', 'I', 'EM', 'SUB', 'SUP', 'U', 'STRIKE'];
  function isInlineElement(node) {
    return inlineElementNames.indexOf(node.nodeName) !== -1;
  }

  HTMLJanitor.prototype.clean = function (html) {
    var sandbox = document.createElement('div');
    sandbox.innerHTML = html;

    this._sanitize(sandbox);

    return sandbox.innerHTML;
  };

  HTMLJanitor.prototype._sanitize = function (parentNode) {
    var treeWalker = createTreeWalker(parentNode);
    var node = treeWalker.firstChild();
    if (!node) { return; }

    do {
      // Ignore nodes that have already been sanitized
      if (node._sanitized) {
        continue;
      }

      if (node.nodeType === Node.TEXT_NODE) {
        // If this text node is just whitespace and the previous or next element
        // sibling is a block element, remove it
        // N.B.: This heuristic could change. Very specific to a bug with
        // `contenteditable` in Firefox: http://jsbin.com/EyuKase/1/edit?js,output
        // FIXME: make this an option?
        if (node.data.trim() === ''
            && ((node.previousElementSibling && isBlockElement(node.previousElementSibling))
                 || (node.nextElementSibling && isBlockElement(node.nextElementSibling)))) {
          parentNode.removeChild(node);
          this._sanitize(parentNode);
          break;
        } else {
          continue;
        }
      }

      // Remove all comments
      if (node.nodeType === Node.COMMENT_NODE) {
        parentNode.removeChild(node);
        this._sanitize(parentNode);
        break;
      }

      var isInline = isInlineElement(node);
      var containsBlockElement;
      if (isInline) {
        containsBlockElement = Array.prototype.some.call(node.childNodes, isBlockElement);
      }

      // Block elements should not be nested (e.g. <li><p>...); if
      // they are, we want to unwrap the inner block element.
      var isNotTopContainer = !! parentNode.parentNode;
      var isNestedBlockElement =
            isBlockElement(parentNode) &&
            isBlockElement(node) &&
            isNotTopContainer;

      var nodeName = node.nodeName.toLowerCase();

      var allowedAttrs = getAllowedAttrs(this.config, nodeName, node);

      var isInvalid = isInline && containsBlockElement;

      // Drop tag entirely according to the whitelist *and* if the markup
      // is invalid.
      if (isInvalid || shouldRejectNode(node, allowedAttrs)
          || (!this.config.keepNestedBlockElements && isNestedBlockElement)) {
        // Do not keep the inner text of SCRIPT/STYLE elements.
        if (! (node.nodeName === 'SCRIPT' || node.nodeName === 'STYLE')) {
          while (node.childNodes.length > 0) {
            parentNode.insertBefore(node.childNodes[0], node);
          }
        }
        parentNode.removeChild(node);

        this._sanitize(parentNode);
        break;
      }

      // Sanitize attributes
      for (var a = 0; a < node.attributes.length; a += 1) {
        var attr = node.attributes[a];

        if (shouldRejectAttr(attr, allowedAttrs, node)) {
          node.removeAttribute(attr.name);
          // Shift the array to continue looping.
          a = a - 1;
        }
      }

      // Sanitize children
      this._sanitize(node);

      // Mark node as sanitized so it's ignored in future runs
      node._sanitized = true;
    } while ((node = treeWalker.nextSibling()));
  };

  function createTreeWalker(node) {
    return document.createTreeWalker(node,
                                     NodeFilter.SHOW_TEXT | NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_COMMENT,
                                     null, false);
  }

  function getAllowedAttrs(config, nodeName, node){
    if (typeof config.tags[nodeName] === 'function') {
      return config.tags[nodeName](node);
    } else {
      return config.tags[nodeName];
    }
  }

  function shouldRejectNode(node, allowedAttrs){
    if (typeof allowedAttrs === 'undefined') {
      return true;
    } else if (typeof allowedAttrs === 'boolean') {
      return !allowedAttrs;
    }

    return false;
  }

  function shouldRejectAttr(attr, allowedAttrs, node){
    var attrName = attr.name.toLowerCase();

    if (allowedAttrs === true){
      return false;
    } else if (typeof allowedAttrs[attrName] === 'function'){
      return !allowedAttrs[attrName](attr.value, node);
    } else if (typeof allowedAttrs[attrName] === 'undefined'){
      return true;
    } else if (allowedAttrs[attrName] === false) {
      return true;
    } else if (typeof allowedAttrs[attrName] === 'string') {
      return (allowedAttrs[attrName] !== attr.value);
    }

    return false;
  }

  return HTMLJanitor;

}));


//# sourceMappingURL=html-janitor.js.map;
define('lodash-amd/modern/internal/arrayEach',[], function() {

  /**
   * A specialized version of `_.forEach` for arrays without support for callback
   * shorthands or `this` binding.
   *
   * @private
   * @param {Array} array The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns `array`.
   */
  function arrayEach(array, iteratee) {
    var index = -1,
        length = array.length;

    while (++index < length) {
      if (iteratee(array[index], index, array) === false) {
        break;
      }
    }
    return array;
  }

  return arrayEach;
});

define('lodash-amd/modern/lang/isObject',[], function() {

  /**
   * Checks if `value` is the language type of `Object`.
   * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
   *
   * **Note:** See the [ES5 spec](https://es5.github.io/#x8) for more details.
   *
   * @static
   * @memberOf _
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is an object, else `false`.
   * @example
   *
   * _.isObject({});
   * // => true
   *
   * _.isObject([1, 2, 3]);
   * // => true
   *
   * _.isObject(1);
   * // => false
   */
  function isObject(value) {
    // Avoid a V8 JIT bug in Chrome 19-20.
    // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
    var type = typeof value;
    return type == 'function' || (value && type == 'object') || false;
  }

  return isObject;
});

define('lodash-amd/modern/internal/toObject',['../lang/isObject'], function(isObject) {

  /**
   * Converts `value` to an object if it is not one.
   *
   * @private
   * @param {*} value The value to process.
   * @returns {Object} Returns the object.
   */
  function toObject(value) {
    return isObject(value) ? value : Object(value);
  }

  return toObject;
});

define('lodash-amd/modern/internal/baseFor',['./toObject'], function(toObject) {

  /**
   * The base implementation of `baseForIn` and `baseForOwn` which iterates
   * over `object` properties returned by `keysFunc` invoking `iteratee` for
   * each property. Iterator functions may exit iteration early by explicitly
   * returning `false`.
   *
   * @private
   * @param {Object} object The object to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {Function} keysFunc The function to get the keys of `object`.
   * @returns {Object} Returns `object`.
   */
  function baseFor(object, iteratee, keysFunc) {
    var index = -1,
        iterable = toObject(object),
        props = keysFunc(object),
        length = props.length;

    while (++index < length) {
      var key = props[index];
      if (iteratee(iterable[key], key, iterable) === false) {
        break;
      }
    }
    return object;
  }

  return baseFor;
});

define('lodash-amd/modern/internal/isLength',[], function() {

  /**
   * Used as the maximum length of an array-like value.
   * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer)
   * for more details.
   */
  var MAX_SAFE_INTEGER = Math.pow(2, 53) - 1;

  /**
   * Checks if `value` is a valid array-like length.
   *
   * **Note:** This function is based on ES `ToLength`. See the
   * [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength)
   * for more details.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
   */
  function isLength(value) {
    return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
  }

  return isLength;
});

define('lodash-amd/modern/internal/baseToString',[], function() {

  /**
   * Converts `value` to a string if it is not one. An empty string is returned
   * for `null` or `undefined` values.
   *
   * @private
   * @param {*} value The value to process.
   * @returns {string} Returns the string.
   */
  function baseToString(value) {
    if (typeof value == 'string') {
      return value;
    }
    return value == null ? '' : (value + '');
  }

  return baseToString;
});

define('lodash-amd/modern/string/escapeRegExp',['../internal/baseToString'], function(baseToString) {

  /**
   * Used to match `RegExp` special characters.
   * See this [article on `RegExp` characters](http://www.regular-expressions.info/characters.html#special)
   * for more details.
   */
  var reRegExpChars = /[.*+?^${}()|[\]\/\\]/g,
      reHasRegExpChars = RegExp(reRegExpChars.source);

  /**
   * Escapes the `RegExp` special characters "\", "^", "$", ".", "|", "?", "*",
   * "+", "(", ")", "[", "]", "{" and "}" in `string`.
   *
   * @static
   * @memberOf _
   * @category String
   * @param {string} [string=''] The string to escape.
   * @returns {string} Returns the escaped string.
   * @example
   *
   * _.escapeRegExp('[lodash](https://lodash.com/)');
   * // => '\[lodash\]\(https://lodash\.com/\)'
   */
  function escapeRegExp(string) {
    string = baseToString(string);
    return (string && reHasRegExpChars.test(string))
      ? string.replace(reRegExpChars, '\\$&')
      : string;
  }

  return escapeRegExp;
});

define('lodash-amd/modern/internal/isObjectLike',[], function() {

  /**
   * Checks if `value` is object-like.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
   */
  function isObjectLike(value) {
    return (value && typeof value == 'object') || false;
  }

  return isObjectLike;
});

define('lodash-amd/modern/lang/isNative',['../string/escapeRegExp', '../internal/isObjectLike'], function(escapeRegExp, isObjectLike) {

  /** `Object#toString` result references. */
  var funcTag = '[object Function]';

  /** Used to detect host constructors (Safari > 5). */
  var reHostCtor = /^\[object .+?Constructor\]$/;

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /** Used to resolve the decompiled source of functions. */
  var fnToString = Function.prototype.toString;

  /**
   * Used to resolve the `toStringTag` of values.
   * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
   * for more details.
   */
  var objToString = objectProto.toString;

  /** Used to detect if a method is native. */
  var reNative = RegExp('^' +
    escapeRegExp(objToString)
    .replace(/toString|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
  );

  /**
   * Checks if `value` is a native function.
   *
   * @static
   * @memberOf _
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
   * @example
   *
   * _.isNative(Array.prototype.push);
   * // => true
   *
   * _.isNative(_);
   * // => false
   */
  function isNative(value) {
    if (value == null) {
      return false;
    }
    if (objToString.call(value) == funcTag) {
      return reNative.test(fnToString.call(value));
    }
    return (isObjectLike(value) && reHostCtor.test(value)) || false;
  }

  return isNative;
});

define('lodash-amd/modern/lang/isArguments',['../internal/isLength', '../internal/isObjectLike'], function(isLength, isObjectLike) {

  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
  var undefined;

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]';

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /**
   * Used to resolve the `toStringTag` of values.
   * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
   * for more details.
   */
  var objToString = objectProto.toString;

  /**
   * Checks if `value` is classified as an `arguments` object.
   *
   * @static
   * @memberOf _
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
   * @example
   *
   * _.isArguments(function() { return arguments; }());
   * // => true
   *
   * _.isArguments([1, 2, 3]);
   * // => false
   */
  function isArguments(value) {
    var length = isObjectLike(value) ? value.length : undefined;
    return (isLength(length) && objToString.call(value) == argsTag) || false;
  }

  return isArguments;
});

define('lodash-amd/modern/lang/isArray',['../internal/isLength', './isNative', '../internal/isObjectLike'], function(isLength, isNative, isObjectLike) {

  /** `Object#toString` result references. */
  var arrayTag = '[object Array]';

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /**
   * Used to resolve the `toStringTag` of values.
   * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
   * for more details.
   */
  var objToString = objectProto.toString;

  /* Native method references for those with the same name as other `lodash` methods. */
  var nativeIsArray = isNative(nativeIsArray = Array.isArray) && nativeIsArray;

  /**
   * Checks if `value` is classified as an `Array` object.
   *
   * @static
   * @memberOf _
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
   * @example
   *
   * _.isArray([1, 2, 3]);
   * // => true
   *
   * _.isArray(function() { return arguments; }());
   * // => false
   */
  var isArray = nativeIsArray || function(value) {
    return (isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag) || false;
  };

  return isArray;
});

define('lodash-amd/modern/internal/isIndex',[], function() {

  /**
   * Used as the maximum length of an array-like value.
   * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer)
   * for more details.
   */
  var MAX_SAFE_INTEGER = Math.pow(2, 53) - 1;

  /**
   * Checks if `value` is a valid array-like index.
   *
   * @private
   * @param {*} value The value to check.
   * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
   * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
   */
  function isIndex(value, length) {
    value = +value;
    length = length == null ? MAX_SAFE_INTEGER : length;
    return value > -1 && value % 1 == 0 && value < length;
  }

  return isIndex;
});

define('lodash-amd/modern/internal/root',[], function() {

  /** Used to determine if values are of the language type `Object`. */
  var objectTypes = {
    'function': true,
    'object': true
  };

  /** Detect free variable `exports`. */
  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;

  /** Detect free variable `module`. */
  var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;

  /** Detect free variable `global` from Node.js. */
  var freeGlobal = freeExports && freeModule && typeof global == 'object' && global;

  /** Detect free variable `window`. */
  var freeWindow = objectTypes[typeof window] && window;

  /**
   * Used as a reference to the global object.
   *
   * The `this` value is used if it is the global object to avoid Greasemonkey's
   * restricted `window` object, otherwise the `window` object is used.
   */
  var root = freeGlobal || ((freeWindow !== (this && this.window)) && freeWindow) || this;

  return root;
});

define('lodash-amd/modern/support',['./lang/isNative', './internal/root'], function(isNative, root) {

  /** Used to detect functions containing a `this` reference. */
  var reThis = /\bthis\b/;

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /** Used to detect DOM support. */
  var document = (document = root.window) && document.document;

  /** Native method references. */
  var propertyIsEnumerable = objectProto.propertyIsEnumerable;

  /**
   * An object environment feature flags.
   *
   * @static
   * @memberOf _
   * @type Object
   */
  var support = {};

  (function(x) {

    /**
     * Detect if functions can be decompiled by `Function#toString`
     * (all but Firefox OS certified apps, older Opera mobile browsers, and
     * the PlayStation 3; forced `false` for Windows 8 apps).
     *
     * @memberOf _.support
     * @type boolean
     */
    support.funcDecomp = !isNative(root.WinRTError) && reThis.test(function() { return this; });

    /**
     * Detect if `Function#name` is supported (all but IE).
     *
     * @memberOf _.support
     * @type boolean
     */
    support.funcNames = typeof Function.name == 'string';

    /**
     * Detect if the DOM is supported.
     *
     * @memberOf _.support
     * @type boolean
     */
    try {
      support.dom = document.createDocumentFragment().nodeType === 11;
    } catch(e) {
      support.dom = false;
    }

    /**
     * Detect if `arguments` object indexes are non-enumerable.
     *
     * In Firefox < 4, IE < 9, PhantomJS, and Safari < 5.1 `arguments` object
     * indexes are non-enumerable. Chrome < 25 and Node.js < 0.11.0 treat
     * `arguments` object indexes as non-enumerable and fail `hasOwnProperty`
     * checks for indexes that exceed their function's formal parameters with
     * associated values of `0`.
     *
     * @memberOf _.support
     * @type boolean
     */
    try {
      support.nonEnumArgs = !propertyIsEnumerable.call(arguments, 1);
    } catch(e) {
      support.nonEnumArgs = true;
    }
  }(0, 0));

  return support;
});

define('lodash-amd/modern/object/keysIn',['../lang/isArguments', '../lang/isArray', '../internal/isIndex', '../internal/isLength', '../lang/isObject', '../support'], function(isArguments, isArray, isIndex, isLength, isObject, support) {

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * Creates an array of the own and inherited enumerable property names of `object`.
   *
   * **Note:** Non-object values are coerced to objects.
   *
   * @static
   * @memberOf _
   * @category Object
   * @param {Object} object The object to inspect.
   * @returns {Array} Returns the array of property names.
   * @example
   *
   * function Foo() {
   *   this.a = 1;
   *   this.b = 2;
   * }
   *
   * Foo.prototype.c = 3;
   *
   * _.keysIn(new Foo);
   * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
   */
  function keysIn(object) {
    if (object == null) {
      return [];
    }
    if (!isObject(object)) {
      object = Object(object);
    }
    var length = object.length;
    length = (length && isLength(length) &&
      (isArray(object) || (support.nonEnumArgs && isArguments(object))) && length) || 0;

    var Ctor = object.constructor,
        index = -1,
        isProto = typeof Ctor == 'function' && Ctor.prototype === object,
        result = Array(length),
        skipIndexes = length > 0;

    while (++index < length) {
      result[index] = (index + '');
    }
    for (var key in object) {
      if (!(skipIndexes && isIndex(key, length)) &&
          !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
        result.push(key);
      }
    }
    return result;
  }

  return keysIn;
});

define('lodash-amd/modern/internal/shimKeys',['../lang/isArguments', '../lang/isArray', './isIndex', './isLength', '../object/keysIn', '../support'], function(isArguments, isArray, isIndex, isLength, keysIn, support) {

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * A fallback implementation of `Object.keys` which creates an array of the
   * own enumerable property names of `object`.
   *
   * @private
   * @param {Object} object The object to inspect.
   * @returns {Array} Returns the array of property names.
   */
  function shimKeys(object) {
    var props = keysIn(object),
        propsLength = props.length,
        length = propsLength && object.length;

    var allowIndexes = length && isLength(length) &&
      (isArray(object) || (support.nonEnumArgs && isArguments(object)));

    var index = -1,
        result = [];

    while (++index < propsLength) {
      var key = props[index];
      if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
        result.push(key);
      }
    }
    return result;
  }

  return shimKeys;
});

define('lodash-amd/modern/object/keys',['../internal/isLength', '../lang/isNative', '../lang/isObject', '../internal/shimKeys'], function(isLength, isNative, isObject, shimKeys) {

  /* Native method references for those with the same name as other `lodash` methods. */
  var nativeKeys = isNative(nativeKeys = Object.keys) && nativeKeys;

  /**
   * Creates an array of the own enumerable property names of `object`.
   *
   * **Note:** Non-object values are coerced to objects. See the
   * [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.keys)
   * for more details.
   *
   * @static
   * @memberOf _
   * @category Object
   * @param {Object} object The object to inspect.
   * @returns {Array} Returns the array of property names.
   * @example
   *
   * function Foo() {
   *   this.a = 1;
   *   this.b = 2;
   * }
   *
   * Foo.prototype.c = 3;
   *
   * _.keys(new Foo);
   * // => ['a', 'b'] (iteration order is not guaranteed)
   *
   * _.keys('hi');
   * // => ['0', '1']
   */
  var keys = !nativeKeys ? shimKeys : function(object) {
    if (object) {
      var Ctor = object.constructor,
          length = object.length;
    }
    if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
        (typeof object != 'function' && (length && isLength(length)))) {
      return shimKeys(object);
    }
    return isObject(object) ? nativeKeys(object) : [];
  };

  return keys;
});

define('lodash-amd/modern/internal/baseForOwn',['./baseFor', '../object/keys'], function(baseFor, keys) {

  /**
   * The base implementation of `_.forOwn` without support for callback
   * shorthands and `this` binding.
   *
   * @private
   * @param {Object} object The object to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Object} Returns `object`.
   */
  function baseForOwn(object, iteratee) {
    return baseFor(object, iteratee, keys);
  }

  return baseForOwn;
});

define('lodash-amd/modern/internal/arrayCopy',[], function() {

  /**
   * Copies the values of `source` to `array`.
   *
   * @private
   * @param {Array} source The array to copy values from.
   * @param {Array} [array=[]] The array to copy values to.
   * @returns {Array} Returns `array`.
   */
  function arrayCopy(source, array) {
    var index = -1,
        length = source.length;

    array || (array = Array(length));
    while (++index < length) {
      array[index] = source[index];
    }
    return array;
  }

  return arrayCopy;
});

define('lodash-amd/modern/internal/baseForIn',['./baseFor', '../object/keysIn'], function(baseFor, keysIn) {

  /**
   * The base implementation of `_.forIn` without support for callback
   * shorthands and `this` binding.
   *
   * @private
   * @param {Object} object The object to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Object} Returns `object`.
   */
  function baseForIn(object, iteratee) {
    return baseFor(object, iteratee, keysIn);
  }

  return baseForIn;
});

define('lodash-amd/modern/internal/shimIsPlainObject',['./baseForIn', './isObjectLike'], function(baseForIn, isObjectLike) {

  /** `Object#toString` result references. */
  var objectTag = '[object Object]';

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * Used to resolve the `toStringTag` of values.
   * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
   * for more details.
   */
  var objToString = objectProto.toString;

  /**
   * A fallback implementation of `_.isPlainObject` which checks if `value`
   * is an object created by the `Object` constructor or has a `[[Prototype]]`
   * of `null`.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
   */
  function shimIsPlainObject(value) {
    var Ctor;

    // Exit early for non `Object` objects.
    if (!(isObjectLike(value) && objToString.call(value) == objectTag) ||
        (!hasOwnProperty.call(value, 'constructor') &&
          (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {
      return false;
    }
    // IE < 9 iterates inherited properties before own properties. If the first
    // iterated property is an object's own property then there are no inherited
    // enumerable properties.
    var result;
    // In most environments an object's own properties are iterated before
    // its inherited properties. If the last iterated property is an object's
    // own property then there are no inherited enumerable properties.
    baseForIn(value, function(subValue, key) {
      result = key;
    });
    return typeof result == 'undefined' || hasOwnProperty.call(value, result);
  }

  return shimIsPlainObject;
});

define('lodash-amd/modern/lang/isPlainObject',['./isNative', '../internal/shimIsPlainObject'], function(isNative, shimIsPlainObject) {

  /** `Object#toString` result references. */
  var objectTag = '[object Object]';

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /**
   * Used to resolve the `toStringTag` of values.
   * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
   * for more details.
   */
  var objToString = objectProto.toString;

  /** Native method references. */
  var getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf;

  /**
   * Checks if `value` is a plain object, that is, an object created by the
   * `Object` constructor or one with a `[[Prototype]]` of `null`.
   *
   * **Note:** This method assumes objects created by the `Object` constructor
   * have no inherited enumerable properties.
   *
   * @static
   * @memberOf _
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
   * @example
   *
   * function Foo() {
   *   this.a = 1;
   * }
   *
   * _.isPlainObject(new Foo);
   * // => false
   *
   * _.isPlainObject([1, 2, 3]);
   * // => false
   *
   * _.isPlainObject({ 'x': 0, 'y': 0 });
   * // => true
   *
   * _.isPlainObject(Object.create(null));
   * // => true
   */
  var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
    if (!(value && objToString.call(value) == objectTag)) {
      return false;
    }
    var valueOf = value.valueOf,
        objProto = isNative(valueOf) && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto);

    return objProto
      ? (value == objProto || getPrototypeOf(value) == objProto)
      : shimIsPlainObject(value);
  };

  return isPlainObject;
});

define('lodash-amd/modern/lang/isTypedArray',['../internal/isLength', '../internal/isObjectLike'], function(isLength, isObjectLike) {

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      errorTag = '[object Error]',
      funcTag = '[object Function]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      objectTag = '[object Object]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      weakMapTag = '[object WeakMap]';

  var arrayBufferTag = '[object ArrayBuffer]',
      float32Tag = '[object Float32Array]',
      float64Tag = '[object Float64Array]',
      int8Tag = '[object Int8Array]',
      int16Tag = '[object Int16Array]',
      int32Tag = '[object Int32Array]',
      uint8Tag = '[object Uint8Array]',
      uint8ClampedTag = '[object Uint8ClampedArray]',
      uint16Tag = '[object Uint16Array]',
      uint32Tag = '[object Uint32Array]';

  /** Used to identify `toStringTag` values of typed arrays. */
  var typedArrayTags = {};
  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
  typedArrayTags[uint32Tag] = true;
  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
  typedArrayTags[dateTag] = typedArrayTags[errorTag] =
  typedArrayTags[funcTag] = typedArrayTags[mapTag] =
  typedArrayTags[numberTag] = typedArrayTags[objectTag] =
  typedArrayTags[regexpTag] = typedArrayTags[setTag] =
  typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /**
   * Used to resolve the `toStringTag` of values.
   * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
   * for more details.
   */
  var objToString = objectProto.toString;

  /**
   * Checks if `value` is classified as a typed array.
   *
   * @static
   * @memberOf _
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
   * @example
   *
   * _.isTypedArray(new Uint8Array);
   * // => true
   *
   * _.isTypedArray([]);
   * // => false
   */
  function isTypedArray(value) {
    return (isObjectLike(value) && isLength(value.length) && typedArrayTags[objToString.call(value)]) || false;
  }

  return isTypedArray;
});

define('lodash-amd/modern/internal/baseCopy',[], function() {

  /**
   * Copies the properties of `source` to `object`.
   *
   * @private
   * @param {Object} source The object to copy properties from.
   * @param {Object} [object={}] The object to copy properties to.
   * @param {Array} props The property names to copy.
   * @returns {Object} Returns `object`.
   */
  function baseCopy(source, object, props) {
    if (!props) {
      props = object;
      object = {};
    }
    var index = -1,
        length = props.length;

    while (++index < length) {
      var key = props[index];
      object[key] = source[key];
    }
    return object;
  }

  return baseCopy;
});

define('lodash-amd/modern/lang/toPlainObject',['../internal/baseCopy', '../object/keysIn'], function(baseCopy, keysIn) {

  /**
   * Converts `value` to a plain object flattening inherited enumerable
   * properties of `value` to own properties of the plain object.
   *
   * @static
   * @memberOf _
   * @category Lang
   * @param {*} value The value to convert.
   * @returns {Object} Returns the converted plain object.
   * @example
   *
   * function Foo() {
   *   this.b = 2;
   * }
   *
   * Foo.prototype.c = 3;
   *
   * _.assign({ 'a': 1 }, new Foo);
   * // => { 'a': 1, 'b': 2 }
   *
   * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
   * // => { 'a': 1, 'b': 2, 'c': 3 }
   */
  function toPlainObject(value) {
    return baseCopy(value, keysIn(value));
  }

  return toPlainObject;
});

define('lodash-amd/modern/internal/baseMergeDeep',['./arrayCopy', '../lang/isArguments', '../lang/isArray', './isLength', '../lang/isPlainObject', '../lang/isTypedArray', '../lang/toPlainObject'], function(arrayCopy, isArguments, isArray, isLength, isPlainObject, isTypedArray, toPlainObject) {

  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
  var undefined;

  /**
   * A specialized version of `baseMerge` for arrays and objects which performs
   * deep merges and tracks traversed objects enabling objects with circular
   * references to be merged.
   *
   * @private
   * @param {Object} object The destination object.
   * @param {Object} source The source object.
   * @param {string} key The key of the value to merge.
   * @param {Function} mergeFunc The function to merge values.
   * @param {Function} [customizer] The function to customize merging properties.
   * @param {Array} [stackA=[]] Tracks traversed source objects.
   * @param {Array} [stackB=[]] Associates values with source counterparts.
   * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
   */
  function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {
    var length = stackA.length,
        srcValue = source[key];

    while (length--) {
      if (stackA[length] == srcValue) {
        object[key] = stackB[length];
        return;
      }
    }
    var value = object[key],
        result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
        isCommon = typeof result == 'undefined';

    if (isCommon) {
      result = srcValue;
      if (isLength(srcValue.length) && (isArray(srcValue) || isTypedArray(srcValue))) {
        result = isArray(value)
          ? value
          : (value ? arrayCopy(value) : []);
      }
      else if (isPlainObject(srcValue) || isArguments(srcValue)) {
        result = isArguments(value)
          ? toPlainObject(value)
          : (isPlainObject(value) ? value : {});
      }
      else {
        isCommon = false;
      }
    }
    // Add the source value to the stack of traversed objects and associate
    // it with its merged value.
    stackA.push(srcValue);
    stackB.push(result);

    if (isCommon) {
      // Recursively merge objects and arrays (susceptible to call stack limits).
      object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);
    } else if (result === result ? (result !== value) : (value === value)) {
      object[key] = result;
    }
  }

  return baseMergeDeep;
});

define('lodash-amd/modern/internal/baseMerge',['./arrayEach', './baseForOwn', './baseMergeDeep', '../lang/isArray', './isLength', '../lang/isObject', './isObjectLike', '../lang/isTypedArray'], function(arrayEach, baseForOwn, baseMergeDeep, isArray, isLength, isObject, isObjectLike, isTypedArray) {

  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
  var undefined;

  /**
   * The base implementation of `_.merge` without support for argument juggling,
   * multiple sources, and `this` binding `customizer` functions.
   *
   * @private
   * @param {Object} object The destination object.
   * @param {Object} source The source object.
   * @param {Function} [customizer] The function to customize merging properties.
   * @param {Array} [stackA=[]] Tracks traversed source objects.
   * @param {Array} [stackB=[]] Associates values with source counterparts.
   * @returns {Object} Returns the destination object.
   */
  function baseMerge(object, source, customizer, stackA, stackB) {
    if (!isObject(object)) {
      return object;
    }
    var isSrcArr = isLength(source.length) && (isArray(source) || isTypedArray(source));
    (isSrcArr ? arrayEach : baseForOwn)(source, function(srcValue, key, source) {
      if (isObjectLike(srcValue)) {
        stackA || (stackA = []);
        stackB || (stackB = []);
        return baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);
      }
      var value = object[key],
          result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
          isCommon = typeof result == 'undefined';

      if (isCommon) {
        result = srcValue;
      }
      if ((isSrcArr || typeof result != 'undefined') &&
          (isCommon || (result === result ? (result !== value) : (value === value)))) {
        object[key] = result;
      }
    });
    return object;
  }

  return baseMerge;
});

define('lodash-amd/modern/utility/identity',[], function() {

  /**
   * This method returns the first argument provided to it.
   *
   * @static
   * @memberOf _
   * @category Utility
   * @param {*} value Any value.
   * @returns {*} Returns `value`.
   * @example
   *
   * var object = { 'user': 'fred' };
   *
   * _.identity(object) === object;
   * // => true
   */
  function identity(value) {
    return value;
  }

  return identity;
});

define('lodash-amd/modern/internal/bindCallback',['../utility/identity'], function(identity) {

  /**
   * A specialized version of `baseCallback` which only supports `this` binding
   * and specifying the number of arguments to provide to `func`.
   *
   * @private
   * @param {Function} func The function to bind.
   * @param {*} thisArg The `this` binding of `func`.
   * @param {number} [argCount] The number of arguments to provide to `func`.
   * @returns {Function} Returns the callback.
   */
  function bindCallback(func, thisArg, argCount) {
    if (typeof func != 'function') {
      return identity;
    }
    if (typeof thisArg == 'undefined') {
      return func;
    }
    switch (argCount) {
      case 1: return function(value) {
        return func.call(thisArg, value);
      };
      case 3: return function(value, index, collection) {
        return func.call(thisArg, value, index, collection);
      };
      case 4: return function(accumulator, value, index, collection) {
        return func.call(thisArg, accumulator, value, index, collection);
      };
      case 5: return function(value, other, key, object, source) {
        return func.call(thisArg, value, other, key, object, source);
      };
    }
    return function() {
      return func.apply(thisArg, arguments);
    };
  }

  return bindCallback;
});

define('lodash-amd/modern/internal/isIterateeCall',['./isIndex', './isLength', '../lang/isObject'], function(isIndex, isLength, isObject) {

  /**
   * Checks if the provided arguments are from an iteratee call.
   *
   * @private
   * @param {*} value The potential iteratee value argument.
   * @param {*} index The potential iteratee index or key argument.
   * @param {*} object The potential iteratee object argument.
   * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
   */
  function isIterateeCall(value, index, object) {
    if (!isObject(object)) {
      return false;
    }
    var type = typeof index;
    if (type == 'number') {
      var length = object.length,
          prereq = isLength(length) && isIndex(index, length);
    } else {
      prereq = type == 'string' && index in object;
    }
    if (prereq) {
      var other = object[index];
      return value === value ? (value === other) : (other !== other);
    }
    return false;
  }

  return isIterateeCall;
});

define('lodash-amd/modern/internal/createAssigner',['./bindCallback', './isIterateeCall'], function(bindCallback, isIterateeCall) {

  /**
   * Creates a function that assigns properties of source object(s) to a given
   * destination object.
   *
   * @private
   * @param {Function} assigner The function to assign values.
   * @returns {Function} Returns the new assigner function.
   */
  function createAssigner(assigner) {
    return function() {
      var args = arguments,
          length = args.length,
          object = args[0];

      if (length < 2 || object == null) {
        return object;
      }
      var customizer = args[length - 2],
          thisArg = args[length - 1],
          guard = args[3];

      if (length > 3 && typeof customizer == 'function') {
        customizer = bindCallback(customizer, thisArg, 5);
        length -= 2;
      } else {
        customizer = (length > 2 && typeof thisArg == 'function') ? thisArg : null;
        length -= (customizer ? 1 : 0);
      }
      if (guard && isIterateeCall(args[1], args[2], guard)) {
        customizer = length == 3 ? null : customizer;
        length = 2;
      }
      var index = 0;
      while (++index < length) {
        var source = args[index];
        if (source) {
          assigner(object, source, customizer);
        }
      }
      return object;
    };
  }

  return createAssigner;
});

define('lodash-amd/modern/object/merge',['../internal/baseMerge', '../internal/createAssigner'], function(baseMerge, createAssigner) {

  /**
   * Recursively merges own enumerable properties of the source object(s), that
   * don't resolve to `undefined` into the destination object. Subsequent sources
   * overwrite property assignments of previous sources. If `customizer` is
   * provided it is invoked to produce the merged values of the destination and
   * source properties. If `customizer` returns `undefined` merging is handled
   * by the method instead. The `customizer` is bound to `thisArg` and invoked
   * with five arguments; (objectValue, sourceValue, key, object, source).
   *
   * @static
   * @memberOf _
   * @category Object
   * @param {Object} object The destination object.
   * @param {...Object} [sources] The source objects.
   * @param {Function} [customizer] The function to customize merging properties.
   * @param {*} [thisArg] The `this` binding of `customizer`.
   * @returns {Object} Returns `object`.
   * @example
   *
   * var users = {
   *   'data': [{ 'user': 'barney' }, { 'user': 'fred' }]
   * };
   *
   * var ages = {
   *   'data': [{ 'age': 36 }, { 'age': 40 }]
   * };
   *
   * _.merge(users, ages);
   * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }
   *
   * // using a customizer callback
   * var object = {
   *   'fruits': ['apple'],
   *   'vegetables': ['beet']
   * };
   *
   * var other = {
   *   'fruits': ['banana'],
   *   'vegetables': ['carrot']
   * };
   *
   * _.merge(object, other, function(a, b) {
   *   if (_.isArray(a)) {
   *     return a.concat(b);
   *   }
   * });
   * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }
   */
  var merge = createAssigner(baseMerge);

  return merge;
});

define('lodash-amd/modern/internal/initCloneArray',[], function() {

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * Initializes an array clone.
   *
   * @private
   * @param {Array} array The array to clone.
   * @returns {Array} Returns the initialized clone.
   */
  function initCloneArray(array) {
    var length = array.length,
        result = new array.constructor(length);

    // Add array properties assigned by `RegExp#exec`.
    if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
      result.index = array.index;
      result.input = array.input;
    }
    return result;
  }

  return initCloneArray;
});

define('lodash-amd/modern/utility/constant',[], function() {

  /**
   * Creates a function that returns `value`.
   *
   * @static
   * @memberOf _
   * @category Utility
   * @param {*} value The value to return from the new function.
   * @returns {Function} Returns the new function.
   * @example
   *
   * var object = { 'user': 'fred' };
   * var getter = _.constant(object);
   *
   * getter() === object;
   * // => true
   */
  function constant(value) {
    return function() {
      return value;
    };
  }

  return constant;
});

define('lodash-amd/modern/internal/bufferClone',['../utility/constant', '../lang/isNative', './root'], function(constant, isNative, root) {

  /** Native method references. */
  var ArrayBuffer = isNative(ArrayBuffer = root.ArrayBuffer) && ArrayBuffer,
      bufferSlice = isNative(bufferSlice = ArrayBuffer && new ArrayBuffer(0).slice) && bufferSlice,
      floor = Math.floor,
      Uint8Array = isNative(Uint8Array = root.Uint8Array) && Uint8Array;

  /** Used to clone array buffers. */
  var Float64Array = (function() {
    // Safari 5 errors when using an array buffer to initialize a typed array
    // where the array buffer's `byteLength` is not a multiple of the typed
    // array's `BYTES_PER_ELEMENT`.
    try {
      var func = isNative(func = root.Float64Array) && func,
          result = new func(new ArrayBuffer(10), 0, 1) && func;
    } catch(e) {}
    return result;
  }());

  /** Used as the size, in bytes, of each `Float64Array` element. */
  var FLOAT64_BYTES_PER_ELEMENT = Float64Array ? Float64Array.BYTES_PER_ELEMENT : 0;

  /**
   * Creates a clone of the given array buffer.
   *
   * @private
   * @param {ArrayBuffer} buffer The array buffer to clone.
   * @returns {ArrayBuffer} Returns the cloned array buffer.
   */
  function bufferClone(buffer) {
    return bufferSlice.call(buffer, 0);
  }
  if (!bufferSlice) {
    // PhantomJS has `ArrayBuffer` and `Uint8Array` but not `Float64Array`.
    bufferClone = !(ArrayBuffer && Uint8Array) ? constant(null) : function(buffer) {
      var byteLength = buffer.byteLength,
          floatLength = Float64Array ? floor(byteLength / FLOAT64_BYTES_PER_ELEMENT) : 0,
          offset = floatLength * FLOAT64_BYTES_PER_ELEMENT,
          result = new ArrayBuffer(byteLength);

      if (floatLength) {
        var view = new Float64Array(result, 0, floatLength);
        view.set(new Float64Array(buffer, 0, floatLength));
      }
      if (byteLength != offset) {
        view = new Uint8Array(result, offset);
        view.set(new Uint8Array(buffer, offset));
      }
      return result;
    };
  }

  return bufferClone;
});

define('lodash-amd/modern/internal/initCloneByTag',['./bufferClone'], function(bufferClone) {

  /** `Object#toString` result references. */
  var boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      numberTag = '[object Number]',
      regexpTag = '[object RegExp]',
      stringTag = '[object String]';

  var arrayBufferTag = '[object ArrayBuffer]',
      float32Tag = '[object Float32Array]',
      float64Tag = '[object Float64Array]',
      int8Tag = '[object Int8Array]',
      int16Tag = '[object Int16Array]',
      int32Tag = '[object Int32Array]',
      uint8Tag = '[object Uint8Array]',
      uint8ClampedTag = '[object Uint8ClampedArray]',
      uint16Tag = '[object Uint16Array]',
      uint32Tag = '[object Uint32Array]';

  /** Used to match `RegExp` flags from their coerced string values. */
  var reFlags = /\w*$/;

  /**
   * Initializes an object clone based on its `toStringTag`.
   *
   * **Note:** This function only supports cloning values with tags of
   * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
   *
   *
   * @private
   * @param {Object} object The object to clone.
   * @param {string} tag The `toStringTag` of the object to clone.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @returns {Object} Returns the initialized clone.
   */
  function initCloneByTag(object, tag, isDeep) {
    var Ctor = object.constructor;
    switch (tag) {
      case arrayBufferTag:
        return bufferClone(object);

      case boolTag:
      case dateTag:
        return new Ctor(+object);

      case float32Tag: case float64Tag:
      case int8Tag: case int16Tag: case int32Tag:
      case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
        var buffer = object.buffer;
        return new Ctor(isDeep ? bufferClone(buffer) : buffer, object.byteOffset, object.length);

      case numberTag:
      case stringTag:
        return new Ctor(object);

      case regexpTag:
        var result = new Ctor(object.source, reFlags.exec(object));
        result.lastIndex = object.lastIndex;
    }
    return result;
  }

  return initCloneByTag;
});

define('lodash-amd/modern/internal/initCloneObject',[], function() {

  /**
   * Initializes an object clone.
   *
   * @private
   * @param {Object} object The object to clone.
   * @returns {Object} Returns the initialized clone.
   */
  function initCloneObject(object) {
    var Ctor = object.constructor;
    if (!(typeof Ctor == 'function' && Ctor instanceof Ctor)) {
      Ctor = Object;
    }
    return new Ctor;
  }

  return initCloneObject;
});

define('lodash-amd/modern/internal/baseClone',['./arrayCopy', './arrayEach', './baseCopy', './baseForOwn', './initCloneArray', './initCloneByTag', './initCloneObject', '../lang/isArray', '../lang/isObject', '../object/keys'], function(arrayCopy, arrayEach, baseCopy, baseForOwn, initCloneArray, initCloneByTag, initCloneObject, isArray, isObject, keys) {

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      errorTag = '[object Error]',
      funcTag = '[object Function]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      objectTag = '[object Object]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      weakMapTag = '[object WeakMap]';

  var arrayBufferTag = '[object ArrayBuffer]',
      float32Tag = '[object Float32Array]',
      float64Tag = '[object Float64Array]',
      int8Tag = '[object Int8Array]',
      int16Tag = '[object Int16Array]',
      int32Tag = '[object Int32Array]',
      uint8Tag = '[object Uint8Array]',
      uint8ClampedTag = '[object Uint8ClampedArray]',
      uint16Tag = '[object Uint16Array]',
      uint32Tag = '[object Uint32Array]';

  /** Used to identify `toStringTag` values supported by `_.clone`. */
  var cloneableTags = {};
  cloneableTags[argsTag] = cloneableTags[arrayTag] =
  cloneableTags[arrayBufferTag] = cloneableTags[boolTag] =
  cloneableTags[dateTag] = cloneableTags[float32Tag] =
  cloneableTags[float64Tag] = cloneableTags[int8Tag] =
  cloneableTags[int16Tag] = cloneableTags[int32Tag] =
  cloneableTags[numberTag] = cloneableTags[objectTag] =
  cloneableTags[regexpTag] = cloneableTags[stringTag] =
  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
  cloneableTags[errorTag] = cloneableTags[funcTag] =
  cloneableTags[mapTag] = cloneableTags[setTag] =
  cloneableTags[weakMapTag] = false;

  /** Used for native method references. */
  var objectProto = Object.prototype;

  /**
   * Used to resolve the `toStringTag` of values.
   * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
   * for more details.
   */
  var objToString = objectProto.toString;

  /**
   * The base implementation of `_.clone` without support for argument juggling
   * and `this` binding `customizer` functions.
   *
   * @private
   * @param {*} value The value to clone.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @param {Function} [customizer] The function to customize cloning values.
   * @param {string} [key] The key of `value`.
   * @param {Object} [object] The object `value` belongs to.
   * @param {Array} [stackA=[]] Tracks traversed source objects.
   * @param {Array} [stackB=[]] Associates clones with source counterparts.
   * @returns {*} Returns the cloned value.
   */
  function baseClone(value, isDeep, customizer, key, object, stackA, stackB) {
    var result;
    if (customizer) {
      result = object ? customizer(value, key, object) : customizer(value);
    }
    if (typeof result != 'undefined') {
      return result;
    }
    if (!isObject(value)) {
      return value;
    }
    var isArr = isArray(value);
    if (isArr) {
      result = initCloneArray(value);
      if (!isDeep) {
        return arrayCopy(value, result);
      }
    } else {
      var tag = objToString.call(value),
          isFunc = tag == funcTag;

      if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
        result = initCloneObject(isFunc ? {} : value);
        if (!isDeep) {
          return baseCopy(value, result, keys(value));
        }
      } else {
        return cloneableTags[tag]
          ? initCloneByTag(value, tag, isDeep)
          : (object ? value : {});
      }
    }
    // Check for circular references and return corresponding clone.
    stackA || (stackA = []);
    stackB || (stackB = []);

    var length = stackA.length;
    while (length--) {
      if (stackA[length] == value) {
        return stackB[length];
      }
    }
    // Add the source value to the stack of traversed objects and associate it with its clone.
    stackA.push(value);
    stackB.push(result);

    // Recursively populate clone (susceptible to call stack limits).
    (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
      result[key] = baseClone(subValue, isDeep, customizer, key, value, stackA, stackB);
    });
    return result;
  }

  return baseClone;
});

define('lodash-amd/modern/lang/cloneDeep',['../internal/baseClone', '../internal/bindCallback'], function(baseClone, bindCallback) {

  /**
   * Creates a deep clone of `value`. If `customizer` is provided it is invoked
   * to produce the cloned values. If `customizer` returns `undefined` cloning
   * is handled by the method instead. The `customizer` is bound to `thisArg`
   * and invoked with two argument; (value [, index|key, object]).
   *
   * **Note:** This method is loosely based on the structured clone algorithm.
   * The enumerable properties of `arguments` objects and objects created by
   * constructors other than `Object` are cloned to plain `Object` objects. An
   * empty object is returned for uncloneable values such as functions, DOM nodes,
   * Maps, Sets, and WeakMaps. See the [HTML5 specification](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm)
   * for more details.
   *
   * @static
   * @memberOf _
   * @category Lang
   * @param {*} value The value to deep clone.
   * @param {Function} [customizer] The function to customize cloning values.
   * @param {*} [thisArg] The `this` binding of `customizer`.
   * @returns {*} Returns the deep cloned value.
   * @example
   *
   * var users = [
   *   { 'user': 'barney' },
   *   { 'user': 'fred' }
   * ];
   *
   * var deep = _.cloneDeep(users);
   * deep[0] === users[0];
   * // => false
   *
   * // using a customizer callback
   * var el = _.cloneDeep(document.body, function(value) {
   *   if (_.isElement(value)) {
   *     return value.cloneNode(true);
   *   }
   * });
   *
   * el === document.body
   * // => false
   * el.nodeName
   * // => BODY
   * el.childNodes.length;
   * // => 20
   */
  function cloneDeep(value, customizer, thisArg) {
    customizer = typeof customizer == 'function' && bindCallback(customizer, thisArg, 1);
    return baseClone(value, true, customizer);
  }

  return cloneDeep;
});

define('scribe-plugin-sanitizer',[
  'html-janitor',
  'lodash-amd/modern/object/merge',
  'lodash-amd/modern/lang/cloneDeep'
], function (
  HTMLJanitor,
  merge,
  cloneDeep
) {

  /**
   * This plugin adds the ability to sanitize content when it is pasted into the
   * scribe, adhering to a whitelist of allowed tags and attributes.
   */

  

  return function (config) {
    // We extend the config to let through (1) Scribe position markers,
    // otherwise we lose the caret position when running the Scribe content
    // through this sanitizer, and (2) BR elements which are needed by the
    // browser to ensure elements are selectable.
    var configAllowMarkers = merge(cloneDeep(config), {
      tags: {
        em: {class: 'scribe-marker'},
        br: {}
      }
    });

    return function (scribe) {
      var janitor = new HTMLJanitor(configAllowMarkers);

      scribe.registerHTMLFormatter('sanitize', janitor.clean.bind(janitor));
    };
  };

});


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