(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
	typeof define === 'function' && define.amd ? define(['exports'], factory) :
	(factory((global['y-tests'] = {})));
}(this, (function (exports) { 'use strict';

class N {
  // A created node is always red!
  constructor (val) {
    this.val = val;
    this.color = true;
    this._left = null;
    this._right = null;
    this._parent = null;
  }
  isRed () { return this.color }
  isBlack () { return !this.color }
  redden () { this.color = true; return this }
  blacken () { this.color = false; return this }
  get grandparent () {
    return this.parent.parent
  }
  get parent () {
    return this._parent
  }
  get sibling () {
    return (this === this.parent.left)
      ? this.parent.right : this.parent.left
  }
  get left () {
    return this._left
  }
  get right () {
    return this._right
  }
  set left (n) {
    if (n !== null) {
      n._parent = this;
    }
    this._left = n;
  }
  set right (n) {
    if (n !== null) {
      n._parent = this;
    }
    this._right = n;
  }
  rotateLeft (tree) {
    var parent = this.parent;
    var newParent = this.right;
    var newRight = this.right.left;
    newParent.left = this;
    this.right = newRight;
    if (parent === null) {
      tree.root = newParent;
      newParent._parent = null;
    } else if (parent.left === this) {
      parent.left = newParent;
    } else if (parent.right === this) {
      parent.right = newParent;
    } else {
      throw new Error('The elements are wrongly connected!')
    }
  }
  next () {
    if (this.right !== null) {
      // search the most left node in the right tree
      var o = this.right;
      while (o.left !== null) {
        o = o.left;
      }
      return o
    } else {
      var p = this;
      while (p.parent !== null && p !== p.parent.left) {
        p = p.parent;
      }
      return p.parent
    }
  }
  prev () {
    if (this.left !== null) {
      // search the most right node in the left tree
      var o = this.left;
      while (o.right !== null) {
        o = o.right;
      }
      return o
    } else {
      var p = this;
      while (p.parent !== null && p !== p.parent.right) {
        p = p.parent;
      }
      return p.parent
    }
  }
  rotateRight (tree) {
    var parent = this.parent;
    var newParent = this.left;
    var newLeft = this.left.right;
    newParent.right = this;
    this.left = newLeft;
    if (parent === null) {
      tree.root = newParent;
      newParent._parent = null;
    } else if (parent.left === this) {
      parent.left = newParent;
    } else if (parent.right === this) {
      parent.right = newParent;
    } else {
      throw new Error('The elements are wrongly connected!')
    }
  }
  getUncle () {
    // we can assume that grandparent exists when this is called!
    if (this.parent === this.parent.parent.left) {
      return this.parent.parent.right
    } else {
      return this.parent.parent.left
    }
  }
}

/*
 * This is a Red Black Tree implementation
 */
class Tree {
  constructor () {
    this.root = null;
    this.length = 0;
  }
  findNext (id) {
    var nextID = id.clone();
    nextID.clock += 1;
    return this.findWithLowerBound(nextID)
  }
  findPrev (id) {
    let prevID = id.clone();
    prevID.clock -= 1;
    return this.findWithUpperBound(prevID)
  }
  findNodeWithLowerBound (from) {
    var o = this.root;
    if (o === null) {
      return null
    } else {
      while (true) {
        if (from === null || (from.lessThan(o.val._id) && o.left !== null)) {
          // o is included in the bound
          // try to find an element that is closer to the bound
          o = o.left;
        } else if (from !== null && o.val._id.lessThan(from)) {
          // o is not within the bound, maybe one of the right elements is..
          if (o.right !== null) {
            o = o.right;
          } else {
            // there is no right element. Search for the next bigger element,
            // this should be within the bounds
            return o.next()
          }
        } else {
          return o
        }
      }
    }
  }
  findNodeWithUpperBound (to) {
    if (to === void 0) {
      throw new Error('You must define from!')
    }
    var o = this.root;
    if (o === null) {
      return null
    } else {
      while (true) {
        if ((to === null || o.val._id.lessThan(to)) && o.right !== null) {
          // o is included in the bound
          // try to find an element that is closer to the bound
          o = o.right;
        } else if (to !== null && to.lessThan(o.val._id)) {
          // o is not within the bound, maybe one of the left elements is..
          if (o.left !== null) {
            o = o.left;
          } else {
            // there is no left element. Search for the prev smaller element,
            // this should be within the bounds
            return o.prev()
          }
        } else {
          return o
        }
      }
    }
  }
  findSmallestNode () {
    var o = this.root;
    while (o != null && o.left != null) {
      o = o.left;
    }
    return o
  }
  findWithLowerBound (from) {
    var n = this.findNodeWithLowerBound(from);
    return n == null ? null : n.val
  }
  findWithUpperBound (to) {
    var n = this.findNodeWithUpperBound(to);
    return n == null ? null : n.val
  }
  iterate (from, to, f) {
    var o;
    if (from === null) {
      o = this.findSmallestNode();
    } else {
      o = this.findNodeWithLowerBound(from);
    }
    while (
      o !== null &&
      (
        to === null || // eslint-disable-line no-unmodified-loop-condition
        o.val._id.lessThan(to) ||
        o.val._id.equals(to)
      )
    ) {
      f(o.val);
      o = o.next();
    }
  }
  find (id) {
    let n = this.findNode(id);
    if (n !== null) {
      return n.val
    } else {
      return null
    }
  }
  findNode (id) {
    var o = this.root;
    if (o === null) {
      return null
    } else {
      while (true) {
        if (o === null) {
          return null
        }
        if (id.lessThan(o.val._id)) {
          o = o.left;
        } else if (o.val._id.lessThan(id)) {
          o = o.right;
        } else {
          return o
        }
      }
    }
  }
  delete (id) {
    var d = this.findNode(id);
    if (d == null) {
      // throw new Error('Element does not exist!')
      return
    }
    this.length--;
    if (d.left !== null && d.right !== null) {
      // switch d with the greates element in the left subtree.
      // o should have at most one child.
      var o = d.left;
      // find
      while (o.right !== null) {
        o = o.right;
      }
      // switch
      d.val = o.val;
      d = o;
    }
    // d has at most one child
    // let n be the node that replaces d
    var isFakeChild;
    var child = d.left || d.right;
    if (child === null) {
      isFakeChild = true;
      child = new N(null);
      child.blacken();
      d.right = child;
    } else {
      isFakeChild = false;
    }

    if (d.parent === null) {
      if (!isFakeChild) {
        this.root = child;
        child.blacken();
        child._parent = null;
      } else {
        this.root = null;
      }
      return
    } else if (d.parent.left === d) {
      d.parent.left = child;
    } else if (d.parent.right === d) {
      d.parent.right = child;
    } else {
      throw new Error('Impossible!')
    }
    if (d.isBlack()) {
      if (child.isRed()) {
        child.blacken();
      } else {
        this._fixDelete(child);
      }
    }
    this.root.blacken();
    if (isFakeChild) {
      if (child.parent.left === child) {
        child.parent.left = null;
      } else if (child.parent.right === child) {
        child.parent.right = null;
      } else {
        throw new Error('Impossible #3')
      }
    }
  }
  _fixDelete (n) {
    function isBlack (node) {
      return node !== null ? node.isBlack() : true
    }
    function isRed (node) {
      return node !== null ? node.isRed() : false
    }
    if (n.parent === null) {
      // this can only be called after the first iteration of fixDelete.
      return
    }
    // d was already replaced by the child
    // d is not the root
    // d and child are black
    var sibling = n.sibling;
    if (isRed(sibling)) {
      // make sibling the grandfather
      n.parent.redden();
      sibling.blacken();
      if (n === n.parent.left) {
        n.parent.rotateLeft(this);
      } else if (n === n.parent.right) {
        n.parent.rotateRight(this);
      } else {
        throw new Error('Impossible #2')
      }
      sibling = n.sibling;
    }
    // parent, sibling, and children of n are black
    if (n.parent.isBlack() &&
      sibling.isBlack() &&
      isBlack(sibling.left) &&
      isBlack(sibling.right)
    ) {
      sibling.redden();
      this._fixDelete(n.parent);
    } else if (n.parent.isRed() &&
      sibling.isBlack() &&
      isBlack(sibling.left) &&
      isBlack(sibling.right)
    ) {
      sibling.redden();
      n.parent.blacken();
    } else {
      if (n === n.parent.left &&
        sibling.isBlack() &&
        isRed(sibling.left) &&
        isBlack(sibling.right)
      ) {
        sibling.redden();
        sibling.left.blacken();
        sibling.rotateRight(this);
        sibling = n.sibling;
      } else if (n === n.parent.right &&
        sibling.isBlack() &&
        isRed(sibling.right) &&
        isBlack(sibling.left)
      ) {
        sibling.redden();
        sibling.right.blacken();
        sibling.rotateLeft(this);
        sibling = n.sibling;
      }
      sibling.color = n.parent.color;
      n.parent.blacken();
      if (n === n.parent.left) {
        sibling.right.blacken();
        n.parent.rotateLeft(this);
      } else {
        sibling.left.blacken();
        n.parent.rotateRight(this);
      }
    }
  }
  put (v) {
    var node = new N(v);
    if (this.root !== null) {
      var p = this.root; // p abbrev. parent
      while (true) {
        if (node.val._id.lessThan(p.val._id)) {
          if (p.left === null) {
            p.left = node;
            break
          } else {
            p = p.left;
          }
        } else if (p.val._id.lessThan(node.val._id)) {
          if (p.right === null) {
            p.right = node;
            break
          } else {
            p = p.right;
          }
        } else {
          p.val = node.val;
          return p
        }
      }
      this._fixInsert(node);
    } else {
      this.root = node;
    }
    this.length++;
    this.root.blacken();
    return node
  }
  _fixInsert (n) {
    if (n.parent === null) {
      n.blacken();
      return
    } else if (n.parent.isBlack()) {
      return
    }
    var uncle = n.getUncle();
    if (uncle !== null && uncle.isRed()) {
      // Note: parent: red, uncle: red
      n.parent.blacken();
      uncle.blacken();
      n.grandparent.redden();
      this._fixInsert(n.grandparent);
    } else {
      // Note: parent: red, uncle: black or null
      // Now we transform the tree in such a way that
      // either of these holds:
      //   1) grandparent.left.isRed
      //     and grandparent.left.left.isRed
      //   2) grandparent.right.isRed
      //     and grandparent.right.right.isRed
      if (n === n.parent.right && n.parent === n.grandparent.left) {
        n.parent.rotateLeft(this);
        // Since we rotated and want to use the previous
        // cases, we need to set n in such a way that
        // n.parent.isRed again
        n = n.left;
      } else if (n === n.parent.left && n.parent === n.grandparent.right) {
        n.parent.rotateRight(this);
        // see above
        n = n.right;
      }
      // Case 1) or 2) hold from here on.
      // Now traverse grandparent, make parent a black node
      // on the highest level which holds two red nodes.
      n.parent.blacken();
      n.grandparent.redden();
      if (n === n.parent.left) {
        // Case 1
        n.grandparent.rotateRight(this);
      } else {
        // Case 2
        n.grandparent.rotateLeft(this);
      }
    }
  }
  flush () {}
}

class ID {
  constructor (user, clock) {
    this.user = user;
    this.clock = clock;
  }
  clone () {
    return new ID(this.user, this.clock)
  }
  equals (id) {
    return id !== null && id.user === this.user && id.clock === this.clock
  }
  lessThan (id) {
    return this.user < id.user || (this.user === id.user && this.clock < id.clock)
  }
}

class DSNode {
  constructor (id, len, gc) {
    this._id = id;
    this.len = len;
    this.gc = gc;
  }
  clone () {
    return new DSNode(this._id, this.len, this.gc)
  }
}

class DeleteStore extends Tree {
  logTable () {
    const deletes = [];
    this.iterate(null, null, function (n) {
      deletes.push({
        user: n._id.user,
        clock: n._id.clock,
        len: n.len,
        gc: n.gc
      });
    });
    console.table(deletes);
  }
  isDeleted (id) {
    var n = this.findWithUpperBound(id);
    return n !== null && n._id.user === id.user && id.clock < n._id.clock + n.len
  }
  /*
   * Mark an operation as deleted. returns the deleted node
   */
  markDeleted (id, length) {
    if (length == null) {
      throw new Error('length must be defined')
    }
    var n = this.findWithUpperBound(id);
    if (n != null && n._id.user === id.user) {
      if (n._id.clock <= id.clock && id.clock <= n._id.clock + n.len) {
        // id is in n's range
        var diff = id.clock + length - (n._id.clock + n.len); // overlapping right
        if (diff > 0) {
          // id+length overlaps n
          if (!n.gc) {
            n.len += diff;
          } else {
            diff = n._id.clock + n.len - id.clock; // overlapping left (id till n.end)
            if (diff < length) {
              // a partial deletion
              let nId = id.clone();
              nId.clock += diff;
              n = new DSNode(nId, length - diff, false);
              this.put(n);
            } else {
              // already gc'd
              throw new Error(
                'DS reached an inconsistent state. Please report this issue!'
              )
            }
          }
        } else {
          // no overlapping, already deleted
          return n
        }
      } else {
        // cannot extend left (there is no left!)
        n = new DSNode(id, length, false);
        this.put(n); // TODO: you double-put !!
      }
    } else {
      // cannot extend left
      n = new DSNode(id, length, false);
      this.put(n);
    }
    // can extend right?
    var next = this.findNext(n._id);
    if (
      next != null &&
      n._id.user === next._id.user &&
      n._id.clock + n.len >= next._id.clock
    ) {
      diff = n._id.clock + n.len - next._id.clock; // from next.start to n.end
      while (diff >= 0) {
        // n overlaps with next
        if (next.gc) {
          // gc is stronger, so reduce length of n
          n.len -= diff;
          if (diff >= next.len) {
            // delete the missing range after next
            diff = diff - next.len; // missing range after next
            if (diff > 0) {
              this.put(n); // unneccessary? TODO!
              this.markDeleted(new ID(next._id.user, next._id.clock + next.len), diff);
            }
          }
          break
        } else {
          // we can extend n with next
          if (diff > next.len) {
            // n is even longer than next
            // get next.next, and try to extend it
            var _next = this.findNext(next._id);
            this.delete(next._id);
            if (_next == null || n._id.user !== _next._id.user) {
              break
            } else {
              next = _next;
              diff = n._id.clock + n.len - next._id.clock; // from next.start to n.end
              // continue!
            }
          } else {
            // n just partially overlaps with next. extend n, delete next, and break this loop
            n.len += next.len - diff;
            this.delete(next._id);
            break
          }
        }
      }
    }
    this.put(n);
    return n
  }
}

function createCommonjsModule(fn, module) {
	return module = { exports: {} }, fn(module, module.exports), module.exports;
}

/*! http://mths.be/fromcodepoint v0.2.1 by @mathias */
if (!String.fromCodePoint) {
	(function() {
		var defineProperty = (function() {
			// IE 8 only supports `Object.defineProperty` on DOM elements
			try {
				var object = {};
				var $defineProperty = Object.defineProperty;
				var result = $defineProperty(object, object, object) && $defineProperty;
			} catch(error) {}
			return result;
		}());
		var stringFromCharCode = String.fromCharCode;
		var floor = Math.floor;
		var fromCodePoint = function(_) {
			var MAX_SIZE = 0x4000;
			var codeUnits = [];
			var highSurrogate;
			var lowSurrogate;
			var index = -1;
			var length = arguments.length;
			if (!length) {
				return '';
			}
			var result = '';
			while (++index < length) {
				var codePoint = Number(arguments[index]);
				if (
					!isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity`
					codePoint < 0 || // not a valid Unicode code point
					codePoint > 0x10FFFF || // not a valid Unicode code point
					floor(codePoint) != codePoint // not an integer
				) {
					throw RangeError('Invalid code point: ' + codePoint);
				}
				if (codePoint <= 0xFFFF) { // BMP code point
					codeUnits.push(codePoint);
				} else { // Astral code point; split in surrogate halves
					// http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
					codePoint -= 0x10000;
					highSurrogate = (codePoint >> 10) + 0xD800;
					lowSurrogate = (codePoint % 0x400) + 0xDC00;
					codeUnits.push(highSurrogate, lowSurrogate);
				}
				if (index + 1 == length || codeUnits.length > MAX_SIZE) {
					result += stringFromCharCode.apply(null, codeUnits);
					codeUnits.length = 0;
				}
			}
			return result;
		};
		if (defineProperty) {
			defineProperty(String, 'fromCodePoint', {
				'value': fromCodePoint,
				'configurable': true,
				'writable': true
			});
		} else {
			String.fromCodePoint = fromCodePoint;
		}
	}());
}

/*! http://mths.be/codepointat v0.2.0 by @mathias */
if (!String.prototype.codePointAt) {
	(function() {
		var defineProperty = (function() {
			// IE 8 only supports `Object.defineProperty` on DOM elements
			try {
				var object = {};
				var $defineProperty = Object.defineProperty;
				var result = $defineProperty(object, object, object) && $defineProperty;
			} catch(error) {}
			return result;
		}());
		var codePointAt = function(position) {
			if (this == null) {
				throw TypeError();
			}
			var string = String(this);
			var size = string.length;
			// `ToInteger`
			var index = position ? Number(position) : 0;
			if (index != index) { // better `isNaN`
				index = 0;
			}
			// Account for out-of-bounds indices:
			if (index < 0 || index >= size) {
				return undefined;
			}
			// Get the first code unit
			var first = string.charCodeAt(index);
			var second;
			if ( // check if it’s the start of a surrogate pair
				first >= 0xD800 && first <= 0xDBFF && // high surrogate
				size > index + 1 // there is a next code unit
			) {
				second = string.charCodeAt(index + 1);
				if (second >= 0xDC00 && second <= 0xDFFF) { // low surrogate
					// http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
					return (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
				}
			}
			return first;
		};
		if (defineProperty) {
			defineProperty(String.prototype, 'codePointAt', {
				'value': codePointAt,
				'configurable': true,
				'writable': true
			});
		} else {
			String.prototype.codePointAt = codePointAt;
		}
	}());
}

var UTF8_1 = createCommonjsModule(function (module) {
// UTF8 : Manage UTF-8 strings in ArrayBuffers
if(module.require) {
  
  
}

var UTF8={
  // non UTF8 encoding detection (cf README file for details)
  'isNotUTF8': function(bytes, byteOffset, byteLength) {
    try {
      UTF8.getStringFromBytes(bytes, byteOffset, byteLength, true);
    } catch(e) {
      return true;
    }
    return false;
  },
  // UTF8 decoding functions
  'getCharLength': function(theByte) {
    // 4 bytes encoded char (mask 11110000)
    if(0xF0 == (theByte&0xF0)) {
      return 4;
    // 3 bytes encoded char (mask 11100000)
    } else if(0xE0 == (theByte&0xE0)) {
      return 3;
    // 2 bytes encoded char (mask 11000000)
    } else if(0xC0 == (theByte&0xC0)) {
      return 2;
    // 1 bytes encoded char
    } else if(theByte == (theByte&0x7F)) {
      return 1;
    }
    return 0;
  },
  'getCharCode': function(bytes, byteOffset, charLength) {
    var charCode = 0, mask = '';
    byteOffset = byteOffset || 0;
    // Retrieve charLength if not given
    charLength = charLength || UTF8.getCharLength(bytes[byteOffset]);
    if(charLength == 0) {
      throw new Error(bytes[byteOffset].toString(2)+' is not a significative' +
        ' byte (offset:'+byteOffset+').');
    }
    // Return byte value if charlength is 1
    if(1 === charLength) {
      return bytes[byteOffset];
    }
    // Test UTF8 integrity
    mask = '00000000'.slice(0, charLength) + 1 + '00000000'.slice(charLength + 1);
    if(bytes[byteOffset]&(parseInt(mask, 2))) {
      throw Error('Index ' + byteOffset + ': A ' + charLength + ' bytes' +
        ' encoded char' +' cannot encode the '+(charLength+1)+'th rank bit to 1.');
    }
    // Reading the first byte
    mask='0000'.slice(0,charLength+1)+'11111111'.slice(charLength+1);
    charCode+=(bytes[byteOffset]&parseInt(mask,2))<<((--charLength)*6);
    // Reading the next bytes
    while(charLength) {
      if(0x80!==(bytes[byteOffset+1]&0x80)
        ||0x40===(bytes[byteOffset+1]&0x40)) {
        throw Error('Index '+(byteOffset+1)+': Next bytes of encoded char'
          +' must begin with a "10" bit sequence.');
      }
      charCode += ((bytes[++byteOffset]&0x3F) << ((--charLength) * 6));
    }
    return charCode;
  },
  'getStringFromBytes': function(bytes, byteOffset, byteLength, strict) {
    var charLength, chars = [];
    byteOffset = byteOffset|0;
    byteLength=('number' === typeof byteLength ?
      byteLength :
      bytes.byteLength || bytes.length
    );
    for(; byteOffset < byteLength; byteOffset++) {
      charLength = UTF8.getCharLength(bytes[byteOffset]);
      if(byteOffset + charLength > byteLength) {
        if(strict) {
          throw Error('Index ' + byteOffset + ': Found a ' + charLength +
            ' bytes encoded char declaration but only ' +
            (byteLength - byteOffset) +' bytes are available.');
        }
      } else {
        chars.push(String.fromCodePoint(
          UTF8.getCharCode(bytes, byteOffset, charLength, strict)
        ));
      }
      byteOffset += charLength - 1;
    }
    return chars.join('');
  },
  // UTF8 encoding functions
  'getBytesForCharCode': function(charCode) {
    if(charCode < 128) {
      return 1;
    } else if(charCode < 2048) {
      return 2;
    } else if(charCode < 65536) {
      return 3;
    } else if(charCode < 2097152) {
      return 4;
    }
    throw new Error('CharCode '+charCode+' cannot be encoded with UTF8.');
  },
  'setBytesFromCharCode': function(charCode, bytes, byteOffset, neededBytes) {
    charCode = charCode|0;
    bytes = bytes || [];
    byteOffset = byteOffset|0;
    neededBytes = neededBytes || UTF8.getBytesForCharCode(charCode);
    // Setting the charCode as it to bytes if the byte length is 1
    if(1 == neededBytes) {
      bytes[byteOffset] = charCode;
    } else {
      // Computing the first byte
      bytes[byteOffset++] =
        (parseInt('1111'.slice(0, neededBytes), 2) << 8 - neededBytes) +
        (charCode >>> ((--neededBytes) * 6));
      // Computing next bytes
      for(;neededBytes>0;) {
        bytes[byteOffset++] = ((charCode>>>((--neededBytes) * 6))&0x3F)|0x80;
      }
    }
    return bytes;
  },
  'setBytesFromString': function(string, bytes, byteOffset, byteLength, strict) {
    string = string || '';
    bytes = bytes || [];
    byteOffset = byteOffset|0;
    byteLength = ('number' === typeof byteLength ?
      byteLength :
      bytes.byteLength||Infinity
    );
    for(var i = 0, j = string.length; i < j; i++) {
      var neededBytes = UTF8.getBytesForCharCode(string[i].codePointAt(0));
      if(strict && byteOffset + neededBytes > byteLength) {
        throw new Error('Not enought bytes to encode the char "' + string[i] +
          '" at the offset "' + byteOffset + '".');
      }
      UTF8.setBytesFromCharCode(string[i].codePointAt(0),
        bytes, byteOffset, neededBytes, strict);
      byteOffset += neededBytes;
    }
    return bytes;
  }
};

{
  module.exports = UTF8;
}
});

class BinaryDecoder {
  constructor (buffer) {
    if (buffer instanceof ArrayBuffer) {
      this.uint8arr = new Uint8Array(buffer);
    } else if (buffer instanceof Uint8Array || (typeof Buffer !== 'undefined' && buffer instanceof Buffer)) {
      this.uint8arr = buffer;
    } else {
      throw new Error('Expected an ArrayBuffer or Uint8Array!')
    }
    this.pos = 0;
  }
  /**
   * Clone this decoder instance
   * Optionally set a new position parameter
   */
  clone (newPos = this.pos) {
    let decoder = new BinaryDecoder(this.uint8arr);
    decoder.pos = newPos;
    return decoder
  }
  /**
   * Number of bytes
   */
  get length () {
    return this.uint8arr.length
  }
  /**
   * Skip one byte, jump to the next position
   */
  skip8 () {
    this.pos++;
  }
  /**
   * Read one byte as unsigned integer
   */
  readUint8 () {
    return this.uint8arr[this.pos++]
  }
  /**
   * Read 4 bytes as unsigned integer
   */
  readUint32 () {
    let uint =
      this.uint8arr[this.pos] +
      (this.uint8arr[this.pos + 1] << 8) +
      (this.uint8arr[this.pos + 2] << 16) +
      (this.uint8arr[this.pos + 3] << 24);
    this.pos += 4;
    return uint
  }
  /**
   * Look ahead without incrementing position
   * to the next byte and read it as unsigned integer
   */
  peekUint8 () {
    return this.uint8arr[this.pos]
  }
  /**
   * Read unsigned integer (32bit) with variable length
   * 1/8th of the storage is used as encoding overhead
   *  - numbers < 2^7 is stored in one byte
   *  - numbers < 2^14 is stored in two bytes
   *  ..
   */
  readVarUint () {
    let num = 0;
    let len = 0;
    while (true) {
      let r = this.uint8arr[this.pos++];
      num = num | ((r & 0b1111111) << len);
      len += 7;
      if (r < 1 << 7) {
        return num >>> 0 // return unsigned number!
      }
      if (len > 35) {
        throw new Error('Integer out of range!')
      }
    }
  }
  /**
   * Read string of variable length
   * - varUint is used to store the length of the string
   */
  readVarString () {
    let len = this.readVarUint();
    let bytes = new Array(len);
    for (let i = 0; i < len; i++) {
      bytes[i] = this.uint8arr[this.pos++];
    }
    return UTF8_1.getStringFromBytes(bytes)
  }
  /**
   *  Look ahead and read varString without incrementing position
   */
  peekVarString () {
    let pos = this.pos;
    let s = this.readVarString();
    this.pos = pos;
    return s
  }
  /**
   * Read ID
   * - If first varUint read is 0xFFFFFF a RootID is returned
   * - Otherwise an ID is returned
   */
  readID () {
    let user = this.readVarUint();
    if (user === RootFakeUserID) {
      // read property name and type id
      const rid = new RootID(this.readVarString(), null);
      rid.type = this.readVarUint();
      return rid
    }
    return new ID(user, this.readVarUint())
  }
}

class MissingEntry {
  constructor (decoder, missing, struct) {
    this.decoder = decoder;
    this.missing = missing.length;
    this.struct = struct;
  }
}

/**
 * Integrate remote struct
 * When a remote struct is integrated, other structs might be ready to ready to
 * integrate.
 */
function _integrateRemoteStructHelper (y, struct) {
  const id = struct._id;
  if (id === undefined) {
    struct._integrate(y);
  } else {
    if (y.ss.getState(id.user) > id.clock) {
      return
    }
    struct._integrate(y);
    let msu = y._missingStructs.get(id.user);
    if (msu != null) {
      let clock = id.clock;
      const finalClock = clock + struct._length;
      for (;clock < finalClock; clock++) {
        const missingStructs = msu.get(clock);
        if (missingStructs !== undefined) {
          missingStructs.forEach(missingDef => {
            missingDef.missing--;
            if (missingDef.missing === 0) {
              const decoder = missingDef.decoder;
              let oldPos = decoder.pos;
              let missing = missingDef.struct._fromBinary(y, decoder);
              decoder.pos = oldPos;
              if (missing.length === 0) {
                y._readyToIntegrate.push(missingDef.struct);
              }
            }
          });
          msu.delete(clock);
        }
      }
    }
  }
}

function stringifyStructs (y, decoder, strBuilder) {
  const len = decoder.readUint32();
  for (let i = 0; i < len; i++) {
    let reference = decoder.readVarUint();
    let Constr = getStruct(reference);
    let struct = new Constr();
    let missing = struct._fromBinary(y, decoder);
    let logMessage = '  ' + struct._logString();
    if (missing.length > 0) {
      logMessage += ' .. missing: ' + missing.map(logID).join(', ');
    }
    strBuilder.push(logMessage);
  }
}

function integrateRemoteStructs (decoder, encoder, y) {
  const len = decoder.readUint32();
  for (let i = 0; i < len; i++) {
    let reference = decoder.readVarUint();
    let Constr = getStruct(reference);
    let struct = new Constr();
    let decoderPos = decoder.pos;
    let missing = struct._fromBinary(y, decoder);
    if (missing.length === 0) {
      while (struct != null) {
        _integrateRemoteStructHelper(y, struct);
        struct = y._readyToIntegrate.shift();
      }
    } else {
      let _decoder = new BinaryDecoder(decoder.uint8arr);
      _decoder.pos = decoderPos;
      let missingEntry = new MissingEntry(_decoder, missing, struct);
      let missingStructs = y._missingStructs;
      for (let i = missing.length - 1; i >= 0; i--) {
        let m = missing[i];
        if (!missingStructs.has(m.user)) {
          missingStructs.set(m.user, new Map());
        }
        let msu = missingStructs.get(m.user);
        if (!msu.has(m.clock)) {
          msu.set(m.clock, []);
        }
        let mArray = msu = msu.get(m.clock);
        mArray.push(missingEntry);
      }
    }
  }
}

const bits7 = 0b1111111;
const bits8 = 0b11111111;

class BinaryEncoder {
  constructor () {
    // TODO: implement chained Uint8Array buffers instead of Array buffer
    this.data = [];
  }

  get length () {
    return this.data.length
  }

  get pos () {
    return this.data.length
  }

  createBuffer () {
    return Uint8Array.from(this.data).buffer
  }

  writeUint8 (num) {
    this.data.push(num & bits8);
  }

  setUint8 (pos, num) {
    this.data[pos] = num & bits8;
  }

  writeUint16 (num) {
    this.data.push(num & bits8, (num >>> 8) & bits8);
  }

  setUint16 (pos, num) {
    this.data[pos] = num & bits8;
    this.data[pos + 1] = (num >>> 8) & bits8;
  }

  writeUint32 (num) {
    for (let i = 0; i < 4; i++) {
      this.data.push(num & bits8);
      num >>>= 8;
    }
  }

  setUint32 (pos, num) {
    for (let i = 0; i < 4; i++) {
      this.data[pos + i] = num & bits8;
      num >>>= 8;
    }
  }

  writeVarUint (num) {
    while (num >= 0b10000000) {
      this.data.push(0b10000000 | (bits7 & num));
      num >>>= 7;
    }
    this.data.push(bits7 & num);
  }

  writeVarString (str) {
    let bytes = UTF8_1.setBytesFromString(str);
    let len = bytes.length;
    this.writeVarUint(len);
    for (let i = 0; i < len; i++) {
      this.data.push(bytes[i]);
    }
  }

  writeID (id) {
    const user = id.user;
    this.writeVarUint(user);
    if (user !== RootFakeUserID) {
      this.writeVarUint(id.clock);
    } else {
      this.writeVarString(id.name);
      this.writeVarUint(id.type);
    }
  }
}

function readStateSet (decoder) {
  let ss = new Map();
  let ssLength = decoder.readUint32();
  for (let i = 0; i < ssLength; i++) {
    let user = decoder.readVarUint();
    let clock = decoder.readVarUint();
    ss.set(user, clock);
  }
  return ss
}

function writeStateSet (y, encoder) {
  let lenPosition = encoder.pos;
  let len = 0;
  encoder.writeUint32(0);
  for (let [user, clock] of y.ss.state) {
    encoder.writeVarUint(user);
    encoder.writeVarUint(clock);
    len++;
  }
  encoder.setUint32(lenPosition, len);
}

function writeDeleteSet (y, encoder) {
  let currentUser = null;
  let currentLength;
  let lastLenPos;

  let numberOfUsers = 0;
  let laterDSLenPus = encoder.pos;
  encoder.writeUint32(0);

  y.ds.iterate(null, null, function (n) {
    var user = n._id.user;
    var clock = n._id.clock;
    var len = n.len;
    var gc = n.gc;
    if (currentUser !== user) {
      numberOfUsers++;
      // a new user was found
      if (currentUser !== null) { // happens on first iteration
        encoder.setUint32(lastLenPos, currentLength);
      }
      currentUser = user;
      encoder.writeVarUint(user);
      // pseudo-fill pos
      lastLenPos = encoder.pos;
      encoder.writeUint32(0);
      currentLength = 0;
    }
    encoder.writeVarUint(clock);
    encoder.writeVarUint(len);
    encoder.writeUint8(gc ? 1 : 0);
    currentLength++;
  });
  if (currentUser !== null) { // happens on first iteration
    encoder.setUint32(lastLenPos, currentLength);
  }
  encoder.setUint32(laterDSLenPus, numberOfUsers);
}

function readDeleteSet (y, decoder) {
  let dsLength = decoder.readUint32();
  for (let i = 0; i < dsLength; i++) {
    let user = decoder.readVarUint();
    let dv = [];
    let dvLength = decoder.readUint32();
    for (let j = 0; j < dvLength; j++) {
      let from = decoder.readVarUint();
      let len = decoder.readVarUint();
      let gc = decoder.readUint8() === 1;
      dv.push([from, len, gc]);
    }
    if (dvLength > 0) {
      let pos = 0;
      let d = dv[pos];
      let deletions = [];
      y.ds.iterate(new ID(user, 0), new ID(user, Number.MAX_VALUE), function (n) {
        // cases:
        // 1. d deletes something to the right of n
        //  => go to next n (break)
        // 2. d deletes something to the left of n
        //  => create deletions
        //  => reset d accordingly
        //  *)=> if d doesn't delete anything anymore, go to next d (continue)
        // 3. not 2) and d deletes something that also n deletes
        //  => reset d so that it doesn't contain n's deletion
        //  *)=> if d does not delete anything anymore, go to next d (continue)
        while (d != null) {
          var diff = 0; // describe the diff of length in 1) and 2)
          if (n._id.clock + n.len <= d[0]) {
            // 1)
            break
          } else if (d[0] < n._id.clock) {
            // 2)
            // delete maximum the len of d
            // else delete as much as possible
            diff = Math.min(n._id.clock - d[0], d[1]);
            // deleteItemRange(y, user, d[0], diff)
            deletions.push([user, d[0], diff]);
          } else {
            // 3)
            diff = n._id.clock + n.len - d[0]; // never null (see 1)
            if (d[2] && !n.gc) {
              // d marks as gc'd but n does not
              // then delete either way
              // deleteItemRange(y, user, d[0], Math.min(diff, d[1]))
              deletions.push([user, d[0], Math.min(diff, d[1])]);
            }
          }
          if (d[1] <= diff) {
            // d doesn't delete anything anymore
            d = dv[++pos];
          } else {
            d[0] = d[0] + diff; // reset pos
            d[1] = d[1] - diff; // reset length
          }
        }
      });
      // TODO: It would be more performant to apply the deletes in the above loop
      // Adapt the Tree implementation to support delete while iterating
      for (let i = deletions.length - 1; i >= 0; i--) {
        const del = deletions[i];
        deleteItemRange(y, del[0], del[1], del[2]);
      }
      // for the rest.. just apply it
      for (; pos < dv.length; pos++) {
        d = dv[pos];
        deleteItemRange(y, user, d[0], d[1]);
        // deletions.push([user, d[0], d[1], d[2]])
      }
    }
  }
}

function stringifySyncStep1 (y, decoder, strBuilder) {
  let auth = decoder.readVarString();
  let protocolVersion = decoder.readVarUint();
  strBuilder.push(`  - auth: "${auth}"`);
  strBuilder.push(`  - protocolVersion: ${protocolVersion}`);
  // write SS
  let ssBuilder = [];
  let len = decoder.readUint32();
  for (let i = 0; i < len; i++) {
    let user = decoder.readVarUint();
    let clock = decoder.readVarUint();
    ssBuilder.push(`(${user}:${clock})`);
  }
  strBuilder.push('  == SS: ' + ssBuilder.join(','));
}

function sendSyncStep1 (connector, syncUser) {
  let encoder = new BinaryEncoder();
  encoder.writeVarString(connector.y.room);
  encoder.writeVarString('sync step 1');
  encoder.writeVarString(connector.authInfo || '');
  encoder.writeVarUint(connector.protocolVersion);
  writeStateSet(connector.y, encoder);
  connector.send(syncUser, encoder.createBuffer());
}

function writeStructs (encoder, decoder, y, ss) {
  const lenPos = encoder.pos;
  encoder.writeUint32(0);
  let len = 0;
  for (let user of y.ss.state.keys()) {
    let clock = ss.get(user) || 0;
    if (user !== RootFakeUserID) {
      y.os.iterate(new ID(user, clock), new ID(user, Number.MAX_VALUE), function (struct) {
        struct._toBinary(encoder);
        len++;
      });
    }
  }
  encoder.setUint32(lenPos, len);
}

function readSyncStep1 (decoder, encoder, y, senderConn, sender) {
  let protocolVersion = decoder.readVarUint();
  // check protocol version
  if (protocolVersion !== y.connector.protocolVersion) {
    console.warn(
      `You tried to sync with a Yjs instance that has a different protocol version
      (You: ${protocolVersion}, Client: ${protocolVersion}).
      `);
    y.destroy();
  }
  // write sync step 2
  encoder.writeVarString('sync step 2');
  encoder.writeVarString(y.connector.authInfo || '');
  const ss = readStateSet(decoder);
  writeStructs(encoder, decoder, y, ss);
  writeDeleteSet(y, encoder);
  y.connector.send(senderConn.uid, encoder.createBuffer());
  senderConn.receivedSyncStep2 = true;
  if (y.connector.role === 'slave') {
    sendSyncStep1(y.connector, sender);
  }
}

function stringifySyncStep2 (y, decoder, strBuilder) {
  strBuilder.push('     - auth: ' + decoder.readVarString());
  strBuilder.push('  == OS:');
  stringifyStructs(y, decoder, strBuilder);
  // write DS to string
  strBuilder.push('  == DS:');
  let len = decoder.readUint32();
  for (let i = 0; i < len; i++) {
    let user = decoder.readVarUint();
    strBuilder.push(`    User: ${user}: `);
    let len2 = decoder.readUint32();
    for (let j = 0; j < len2; j++) {
      let from = decoder.readVarUint();
      let to = decoder.readVarUint();
      let gc = decoder.readUint8() === 1;
      strBuilder.push(`[${from}, ${to}, ${gc}]`);
    }
  }
}

function readSyncStep2 (decoder, encoder, y, senderConn, sender) {
  integrateRemoteStructs(decoder, encoder, y);
  readDeleteSet(y, decoder);
  y.connector._setSyncedWith(sender);
}

function messageToString ([y, buffer]) {
  let decoder = new BinaryDecoder(buffer);
  decoder.readVarString(); // read roomname
  let type = decoder.readVarString();
  let strBuilder = [];
  strBuilder.push('\n === ' + type + ' ===');
  if (type === 'update') {
    stringifyStructs(y, decoder, strBuilder);
  } else if (type === 'sync step 1') {
    stringifySyncStep1(y, decoder, strBuilder);
  } else if (type === 'sync step 2') {
    stringifySyncStep2(y, decoder, strBuilder);
  } else {
    strBuilder.push('-- Unknown message type - probably an encoding issue!!!');
  }
  return strBuilder.join('\n')
}

function messageToRoomname (buffer) {
  let decoder = new BinaryDecoder(buffer);
  decoder.readVarString(); // roomname
  return decoder.readVarString() // messageType
}

function logID (id) {
  if (id !== null && id._id != null) {
    id = id._id;
  }
  if (id === null) {
    return '()'
  } else if (id instanceof ID) {
    return `(${id.user},${id.clock})`
  } else if (id instanceof RootID) {
    return `(${id.name},${id.type})`
  } else if (id.constructor === Y$2) {
    return `y`
  } else {
    throw new Error('This is not a valid ID!')
  }
}

/**
 * Delete all items in an ID-range
 * TODO: implement getItemCleanStartNode for better performance (only one lookup)
 */
function deleteItemRange (y, user, clock, range) {
  const createDelete = y.connector._forwardAppliedStructs;
  let item = y.os.getItemCleanStart(new ID(user, clock));
  if (item !== null) {
    if (!item._deleted) {
      item._splitAt(y, range);
      item._delete(y, createDelete);
    }
    let itemLen = item._length;
    range -= itemLen;
    clock += itemLen;
    if (range > 0) {
      let node = y.os.findNode(new ID(user, clock));
      while (node !== null && range > 0 && node.val._id.equals(new ID(user, clock))) {
        const nodeVal = node.val;
        if (!nodeVal._deleted) {
          nodeVal._splitAt(y, range);
          nodeVal._delete(y, createDelete);
        }
        const nodeLen = nodeVal._length;
        range -= nodeLen;
        clock += nodeLen;
        node = node.next();
      }
    }
  }
}

/**
 * Delete is not a real struct. It will not be saved in OS
 */
class Delete {
  constructor () {
    this._target = null;
    this._length = null;
  }
  _fromBinary (y, decoder) {
    // TODO: set target, and add it to missing if not found
    // There is an edge case in p2p networks!
    const targetID = decoder.readID();
    this._targetID = targetID;
    this._length = decoder.readVarUint();
    if (y.os.getItem(targetID) === null) {
      return [targetID]
    } else {
      return []
    }
  }
  _toBinary (encoder) {
    encoder.writeUint8(getReference(this.constructor));
    encoder.writeID(this._targetID);
    encoder.writeVarUint(this._length);
  }
  /**
   * - If created remotely (a remote user deleted something),
   *   this Delete is applied to all structs in id-range.
   * - If created lokally (e.g. when y-array deletes a range of elements),
   *   this struct is broadcasted only (it is already executed)
   */
  _integrate (y, locallyCreated = false) {
    if (!locallyCreated) {
      // from remote
      const id = this._targetID;
      deleteItemRange(y, id.user, id.clock, this._length);
    } else {
      // from local
      y.connector.broadcastStruct(this);
    }
    if (y.persistence !== null) {
      y.persistence.saveOperations(this);
    }
  }
  _logString () {
    return `Delete - target: ${logID(this._targetID)}, len: ${this._length}`
  }
}

class Transaction {
  constructor (y) {
    this.y = y;
    // types added during transaction
    this.newTypes = new Set();
    // changed types (does not include new types)
    // maps from type to parentSubs (item._parentSub = null for array elements)
    this.changedTypes = new Map();
    this.deletedStructs = new Set();
    this.beforeState = new Map();
    this.changedParentTypes = new Map();
  }
}

function transactionTypeChanged (y, type, sub) {
  if (type !== y && !type._deleted && !y._transaction.newTypes.has(type)) {
    const changedTypes = y._transaction.changedTypes;
    let subs = changedTypes.get(type);
    if (subs === undefined) {
      // create if it doesn't exist yet
      subs = new Set();
      changedTypes.set(type, subs);
    }
    subs.add(sub);
  }
}

/**
 * Helper utility to split an Item (see _splitAt)
 * - copy all properties from a to b
 * - connect a to b
 * - assigns the correct _id
 * - save b to os
 */
function splitHelper (y, a, b, diff) {
  const aID = a._id;
  b._id = new ID(aID.user, aID.clock + diff);
  b._origin = a;
  b._left = a;
  b._right = a._right;
  if (b._right !== null) {
    b._right._left = b;
  }
  b._right_origin = a._right_origin;
  // do not set a._right_origin, as this will lead to problems when syncing
  a._right = b;
  b._parent = a._parent;
  b._parentSub = a._parentSub;
  b._deleted = a._deleted;
  // now search all relevant items to the right and update origin
  // if origin is not it foundOrigins, we don't have to search any longer
  let foundOrigins = new Set();
  foundOrigins.add(a);
  let o = b._right;
  while (o !== null && foundOrigins.has(o._origin)) {
    if (o._origin === a) {
      o._origin = b;
    }
    foundOrigins.add(o);
    o = o._right;
  }
  y.os.put(b);
}

class Item {
  constructor () {
    this._id = null;
    this._origin = null;
    this._left = null;
    this._right = null;
    this._right_origin = null;
    this._parent = null;
    this._parentSub = null;
    this._deleted = false;
  }
  /**
   * Copy the effect of struct
   */
  _copy () {
    let struct = new this.constructor();
    struct._origin = this._left;
    struct._left = this._left;
    struct._right = this;
    struct._right_origin = this;
    struct._parent = this._parent;
    struct._parentSub = this._parentSub;
    return struct
  }
  get _lastId () {
    return new ID(this._id.user, this._id.clock + this._length - 1)
  }
  get _length () {
    return 1
  }
  /**
   * Splits this struct so that another struct can be inserted in-between.
   * This must be overwritten if _length > 1
   * Returns right part after split
   * - diff === 0 => this
   * - diff === length => this._right
   * - otherwise => split _content and return right part of split
   * (see ItemJSON/ItemString for implementation)
   */
  _splitAt (y, diff) {
    if (diff === 0) {
      return this
    }
    return this._right
  }
  _delete (y, createDelete = true) {
    this._deleted = true;
    y.ds.markDeleted(this._id, this._length);
    if (createDelete) {
      let del = new Delete();
      del._targetID = this._id;
      del._length = this._length;
      del._integrate(y, true);
    }
    transactionTypeChanged(y, this._parent, this._parentSub);
    y._transaction.deletedStructs.add(this);
  }
  /**
   * This is called right before this struct receives any children.
   * It can be overwritten to apply pending changes before applying remote changes
   */
  _beforeChange () {
    // nop
  }
  /*
   * - Integrate the struct so that other types/structs can see it
   * - Add this struct to y.os
   * - Check if this is struct deleted
   */
  _integrate (y) {
    const parent = this._parent;
    const selfID = this._id;
    const userState = selfID === null ? 0 : y.ss.getState(selfID.user);
    if (selfID === null) {
      this._id = y.ss.getNextID(this._length);
    } else if (selfID.user === RootFakeUserID) {
      // nop
    } else if (selfID.clock < userState) {
      // already applied..
      return []
    } else if (selfID.clock === userState) {
      y.ss.setState(selfID.user, userState + this._length);
    } else {
      // missing content from user
      throw new Error('Can not apply yet!')
    }
    if (!parent._deleted && !y._transaction.changedTypes.has(parent) && !y._transaction.newTypes.has(parent)) {
      // this is the first time parent is updated
      // or this types is new
      this._parent._beforeChange();
    }
    /*
    # $this has to find a unique position between origin and the next known character
    # case 1: $origin equals $o.origin: the $creator parameter decides if left or right
    #         let $OL= [o1,o2,o3,o4], whereby $this is to be inserted between o1 and o4
    #         o2,o3 and o4 origin is 1 (the position of o2)
    #         there is the case that $this.creator < o2.creator, but o3.creator < $this.creator
    #         then o2 knows o3. Since on another client $OL could be [o1,o3,o4] the problem is complex
    #         therefore $this would be always to the right of o3
    # case 2: $origin < $o.origin
    #         if current $this insert_position > $o origin: $this ins
    #         else $insert_position will not change
    #         (maybe we encounter case 1 later, then this will be to the right of $o)
    # case 3: $origin > $o.origin
    #         $this insert_position is to the left of $o (forever!)
    */
    // handle conflicts
    let o;
    // set o to the first conflicting item
    if (this._left !== null) {
      o = this._left._right;
    } else if (this._parentSub !== null) {
      o = this._parent._map.get(this._parentSub) || null;
    } else {
      o = this._parent._start;
    }
    let conflictingItems = new Set();
    let itemsBeforeOrigin = new Set();
    // Let c in conflictingItems, b in itemsBeforeOrigin
    // ***{origin}bbbb{this}{c,b}{c,b}{o}***
    // Note that conflictingItems is a subset of itemsBeforeOrigin
    while (o !== null && o !== this._right) {
      itemsBeforeOrigin.add(o);
      conflictingItems.add(o);
      if (this._origin === o._origin) {
        // case 1
        if (o._id.user < this._id.user) {
          this._left = o;
          conflictingItems.clear();
        }
      } else if (itemsBeforeOrigin.has(o._origin)) {
        // case 2
        if (!conflictingItems.has(o._origin)) {
          this._left = o;
          conflictingItems.clear();
        }
      } else {
        break
      }
      // TODO: try to use right_origin instead.
      // Then you could basically omit conflictingItems!
      // Note: you probably can't use right_origin in every case.. only when setting _left
      o = o._right;
    }
    // reconnect left/right + update parent map/start if necessary
    const parentSub = this._parentSub;
    if (this._left === null) {
      let right;
      if (parentSub !== null) {
        const pmap = parent._map;
        right = pmap.get(parentSub) || null;
        pmap.set(parentSub, this);
      } else {
        right = parent._start;
        parent._start = this;
      }
      this._right = right;
      if (right !== null) {
        right._left = this;
      }
    } else {
      const left = this._left;
      const right = left._right;
      this._right = right;
      left._right = this;
      if (right !== null) {
        right._left = this;
      }
    }
    if (parent._deleted) {
      this._delete(y, false);
    }
    y.os.put(this);
    transactionTypeChanged(y, parent, parentSub);
    if (this._id.user !== RootFakeUserID) {
      if (y.connector._forwardAppliedStructs || this._id.user === y.userID) {
        y.connector.broadcastStruct(this);
      }
      if (y.persistence !== null) {
        y.persistence.saveOperations(this);
      }
    }
  }
  _toBinary (encoder) {
    encoder.writeUint8(getReference(this.constructor));
    let info = 0;
    if (this._origin !== null) {
      info += 0b1; // origin is defined
    }
    // TODO: remove
    /* no longer send _left
    if (this._left !== this._origin) {
      info += 0b10 // do not copy origin to left
    }
    */
    if (this._right_origin !== null) {
      info += 0b100;
    }
    if (this._parentSub !== null) {
      info += 0b1000;
    }
    encoder.writeUint8(info);
    encoder.writeID(this._id);
    if (info & 0b1) {
      encoder.writeID(this._origin._lastId);
    }
    // TODO: remove
    /* see above
    if (info & 0b10) {
      encoder.writeID(this._left._lastId)
    }
    */
    if (info & 0b100) {
      encoder.writeID(this._right_origin._id);
    }
    if ((info & 0b101) === 0) {
      // neither origin nor right is defined
      encoder.writeID(this._parent._id);
    }
    if (info & 0b1000) {
      encoder.writeVarString(JSON.stringify(this._parentSub));
    }
  }
  _fromBinary (y, decoder) {
    let missing = [];
    const info = decoder.readUint8();
    const id = decoder.readID();
    this._id = id;
    // read origin
    if (info & 0b1) {
      // origin != null
      const originID = decoder.readID();
      // we have to query for left again because it might have been split/merged..
      const origin = y.os.getItemCleanEnd(originID);
      if (origin === null) {
        missing.push(originID);
      } else {
        this._origin = origin;
        this._left = this._origin;
      }
    }
    // read right
    if (info & 0b100) {
      // right != null
      const rightID = decoder.readID();
      // we have to query for right again because it might have been split/merged..
      const right = y.os.getItemCleanStart(rightID);
      if (right === null) {
        missing.push(rightID);
      } else {
        this._right = right;
        this._right_origin = right;
      }
    }
    // read parent
    if ((info & 0b101) === 0) {
      // neither origin nor right is defined
      const parentID = decoder.readID();
      // parent does not change, so we don't have to search for it again
      if (this._parent === null) {
        const parent = y.os.get(parentID);
        if (parent === null) {
          missing.push(parentID);
        } else {
          this._parent = parent;
        }
      }
    } else if (this._parent === null) {
      if (this._origin !== null) {
        this._parent = this._origin._parent;
      } else if (this._right_origin !== null) {
        this._parent = this._right_origin._parent;
      }
    }
    if (info & 0b1000) {
      // TODO: maybe put this in read parent condition (you can also read parentsub from left/right)
      this._parentSub = JSON.parse(decoder.readVarString());
    }
    if (y.ss.getState(id.user) < id.clock) {
      missing.push(new ID(id.user, id.clock - 1));
    }
    return missing
  }
}

class EventHandler {
  constructor () {
    this.eventListeners = [];
  }
  destroy () {
    this.eventListeners = null;
  }
  addEventListener (f) {
    this.eventListeners.push(f);
  }
  removeEventListener (f) {
    this.eventListeners = this.eventListeners.filter(function (g) {
      return f !== g
    });
  }
  removeAllEventListeners () {
    this.eventListeners = [];
  }
  callEventListeners (transaction, event) {
    for (var i = 0; i < this.eventListeners.length; i++) {
      try {
        const f = this.eventListeners[i];
        f(event);
      } catch (e) {
        /*
          Your observer threw an error. This error was caught so that Yjs
          can ensure data consistency! In order to debug this error you
          have to check "Pause On Caught Exceptions" in developer tools.
        */
        console.error(e);
      }
    }
  }
}

// restructure children as if they were inserted one after another
function integrateChildren (y, start) {
  let right;
  do {
    right = start._right;
    start._right = null;
    start._right_origin = null;
    start._origin = start._left;
    start._integrate(y);
    start = right;
  } while (right !== null)
}



class Type extends Item {
  constructor () {
    super();
    this._map = new Map();
    this._start = null;
    this._y = null;
    this._eventHandler = new EventHandler();
    this._deepEventHandler = new EventHandler();
  }
  getPathTo (type) {
    if (type === this) {
      return []
    }
    const path = [];
    const y = this._y;
    while (type._parent !== this && this._parent !== y) {
      let parent = type._parent;
      if (type._parentSub !== null) {
        path.push(type._parentSub);
      } else {
        // parent is array-ish
        for (let [i, child] of parent) {
          if (child === type) {
            path.push(i);
            break
          }
        }
      }
      type = parent;
    }
    if (this._parent !== this) {
      throw new Error('The type is not a child of this node')
    }
    return path
  }
  _callEventHandler (transaction, event) {
    const changedParentTypes = transaction.changedParentTypes;
    this._eventHandler.callEventListeners(transaction, event);
    let type = this;
    while (type !== this._y) {
      let events = changedParentTypes.get(type);
      if (events === undefined) {
        events = [];
        changedParentTypes.set(type, events);
      }
      events.push(event);
      type = type._parent;
    }
  }
  _copy (undeleteChildren) {
    let copy = super._copy();
    let map = new Map();
    copy._map = map;
    for (let [key, value] of this._map) {
      if (undeleteChildren.has(value) || !value.deleted) {
        let _item = value._copy(undeleteChildren);
        _item._parent = copy;
        map.set(key, value._copy(undeleteChildren));
      }
    }
    let prevUndeleted = null;
    copy._start = null;
    let item = this._start;
    while (item !== null) {
      if (undeleteChildren.has(item) || !item.deleted) {
        let _item = item._copy(undeleteChildren);
        _item._left = prevUndeleted;
        _item._origin = prevUndeleted;
        _item._right = null;
        _item._right_origin = null;
        _item._parent = copy;
        if (prevUndeleted === null) {
          copy._start = _item;
        } else {
          prevUndeleted._right = _item;
        }
        prevUndeleted = _item;
      }
      item = item._right;
    }
    return copy
  }
  _transact (f) {
    const y = this._y;
    if (y !== null) {
      y.transact(f);
    } else {
      f(y);
    }
  }
  observe (f) {
    this._eventHandler.addEventListener(f);
  }
  observeDeep (f) {
    this._deepEventHandler.addEventListener(f);
  }
  unobserve (f) {
    this._eventHandler.removeEventListener(f);
  }
  unobserveDeep (f) {
    this._deepEventHandler.removeEventListener(f);
  }
  _integrate (y) {
    y._transaction.newTypes.add(this);
    super._integrate(y);
    this._y = y;
    // when integrating children we must make sure to
    // integrate start
    const start = this._start;
    if (start !== null) {
      this._start = null;
      integrateChildren(y, start);
    }
    // integrate map children
    const map = this._map;
    this._map = new Map();
    for (let t of map.values()) {
      // TODO make sure that right elements are deleted!
      integrateChildren(y, t);
    }
  }
  _delete (y, createDelete) {
    super._delete(y, createDelete);
    y._transaction.changedTypes.delete(this);
    // delete map types
    for (let value of this._map.values()) {
      if (value instanceof Item && !value._deleted) {
        value._delete(y, false);
      }
    }
    // delete array types
    let t = this._start;
    while (t !== null) {
      if (!t._deleted) {
        t._delete(y, false);
      }
      t = t._right;
    }
  }
}

class ItemJSON extends Item {
  constructor () {
    super();
    this._content = null;
  }
  _copy () {
    let struct = super._copy();
    struct._content = this._content;
    return struct
  }
  get _length () {
    return this._content.length
  }
  _fromBinary (y, decoder) {
    let missing = super._fromBinary(y, decoder);
    let len = decoder.readVarUint();
    this._content = new Array(len);
    for (let i = 0; i < len; i++) {
      const ctnt = decoder.readVarString();
      let parsed;
      if (ctnt === 'undefined') {
        parsed = undefined;
      } else {
        parsed = JSON.parse(ctnt);
      }
      this._content[i] = parsed;
    }
    return missing
  }
  _toBinary (encoder) {
    super._toBinary(encoder);
    let len = this._content.length;
    encoder.writeVarUint(len);
    for (let i = 0; i < len; i++) {
      let encoded;
      let content = this._content[i];
      if (content === undefined) {
        encoded = 'undefined';
      } else {
        encoded = JSON.stringify(content);
      }
      encoder.writeVarString(encoded);
    }
  }
  _logString () {
    const left = this._left !== null ? this._left._lastId : null;
    const origin = this._origin !== null ? this._origin._lastId : null;
    return `ItemJSON(id:${logID(this._id)},content:${JSON.stringify(this._content)},left:${logID(left)},origin:${logID(origin)},right:${logID(this._right)},parent:${logID(this._parent)},parentSub:${this._parentSub})`
  }
  _splitAt (y, diff) {
    if (diff === 0) {
      return this
    } else if (diff >= this._length) {
      return this._right
    }
    let item = new ItemJSON();
    item._content = this._content.splice(diff);
    splitHelper(y, this, item, diff);
    return item
  }
}

class ItemString extends Item {
  constructor () {
    super();
    this._content = null;
  }
  _copy () {
    let struct = super._copy();
    struct._content = this._content;
    return struct
  }
  get _length () {
    return this._content.length
  }
  _fromBinary (y, decoder) {
    let missing = super._fromBinary(y, decoder);
    this._content = decoder.readVarString();
    return missing
  }
  _toBinary (encoder) {
    super._toBinary(encoder);
    encoder.writeVarString(this._content);
  }
  _logString () {
    const left = this._left !== null ? this._left._lastId : null;
    const origin = this._origin !== null ? this._origin._lastId : null;
    return `ItemJSON(id:${logID(this._id)},content:${JSON.stringify(this._content)},left:${logID(left)},origin:${logID(origin)},right:${logID(this._right)},parent:${logID(this._parent)},parentSub:${this._parentSub})`
  }
  _splitAt (y, diff) {
    if (diff === 0) {
      return this
    } else if (diff >= this._length) {
      return this._right
    }
    let item = new ItemString();
    item._content = this._content.slice(diff);
    this._content = this._content.slice(0, diff);
    splitHelper(y, this, item, diff);
    return item
  }
}

class YEvent {
  constructor (target) {
    this.target = target;
    this.currentTarget = target;
  }
  get path () {
    const path = [];
    let type = this.target;
    const y = type._y;
    while (type !== this.currentTarget && type !== y) {
      let parent = type._parent;
      if (type._parentSub !== null) {
        path.unshift(type._parentSub);
      } else {
        // parent is array-ish
        for (let [i, child] of parent) {
          if (child === type) {
            path.unshift(i);
            break
          }
        }
      }
      type = parent;
    }
    return path
  }
}

class YArrayEvent extends YEvent {
  constructor (yarray, remote) {
    super(yarray);
    this.remote = remote;
  }
}

class YArray extends Type {
  _callObserver (transaction, parentSubs, remote) {
    this._callEventHandler(transaction, new YArrayEvent(this, remote));
  }
  get (pos) {
    let n = this._start;
    while (n !== null) {
      if (!n._deleted) {
        if (pos < n._length) {
          if (n.constructor === ItemJSON || n.constructor === ItemString) {
            return n._content[pos]
          } else {
            return n
          }
        }
        pos -= n._length;
      }
      n = n._right;
    }
  }
  toArray () {
    return this.map(c => c)
  }
  toJSON () {
    return this.map(c => {
      if (c instanceof Type) {
        if (c.toJSON !== null) {
          return c.toJSON()
        } else {
          return c.toString()
        }
      }
      return c
    })
  }
  map (f) {
    const res = [];
    this.forEach((c, i) => {
      res.push(f(c, i, this));
    });
    return res
  }
  forEach (f) {
    let pos = 0;
    let n = this._start;
    while (n !== null) {
      if (!n._deleted) {
        if (n instanceof Type) {
          f(n, pos++, this);
        } else {
          const content = n._content;
          const contentLen = content.length;
          for (let i = 0; i < contentLen; i++) {
            pos++;
            f(content[i], pos, this);
          }
        }
      }
      n = n._right;
    }
  }
  get length () {
    let length = 0;
    let n = this._start;
    while (n !== null) {
      if (!n._deleted) {
        length += n._length;
      }
      n = n._right;
    }
    return length
  }
  [Symbol.iterator] () {
    return {
      next: function () {
        while (this._item !== null && (this._item._deleted || this._item._length <= this._itemElement)) {
          // item is deleted or itemElement does not exist (is deleted)
          this._item = this._item._right;
          this._itemElement = 0;
        }
        if (this._item === null) {
          return {
            done: true
          }
        }
        let content;
        if (this._item instanceof Type) {
          content = this._item;
        } else {
          content = this._item._content[this._itemElement++];
        }
        return {
          value: [this._count, content],
          done: false
        }
      },
      _item: this._start,
      _itemElement: 0,
      _count: 0
    }
  }
  delete (pos, length = 1) {
    this._y.transact(() => {
      let item = this._start;
      let count = 0;
      while (item !== null && length > 0) {
        if (!item._deleted) {
          if (count <= pos && pos < count + item._length) {
            const diffDel = pos - count;
            item = item._splitAt(this._y, diffDel);
            item._splitAt(this._y, length);
            length -= item._length;
            item._delete(this._y);
            count += diffDel;
          } else {
            count += item._length;
          }
        }
        item = item._right;
      }
    });
    if (length > 0) {
      throw new Error('Delete exceeds the range of the YArray')
    }
  }
  insertAfter (left, content) {
    this._transact(y => {
      let right;
      if (left === null) {
        right = this._start;
      } else {
        right = left._right;
      }
      let prevJsonIns = null;
      for (let i = 0; i < content.length; i++) {
        let c = content[i];
        if (typeof c === 'function') {
          c = new c(); // eslint-disable-line new-cap
        }
        if (c instanceof Type) {
          if (prevJsonIns !== null) {
            if (y !== null) {
              prevJsonIns._integrate(y);
            }
            left = prevJsonIns;
            prevJsonIns = null;
          }
          c._origin = left;
          c._left = left;
          c._right = right;
          c._right_origin = right;
          c._parent = this;
          if (y !== null) {
            c._integrate(y);
          } else if (left === null) {
            this._start = c;
          } else {
            left._right = c;
          }
          left = c;
        } else {
          if (prevJsonIns === null) {
            prevJsonIns = new ItemJSON();
            prevJsonIns._origin = left;
            prevJsonIns._left = left;
            prevJsonIns._right = right;
            prevJsonIns._right_origin = right;
            prevJsonIns._parent = this;
            prevJsonIns._content = [];
          }
          prevJsonIns._content.push(c);
        }
      }
      if (prevJsonIns !== null && y !== null) {
        prevJsonIns._integrate(y);
      }
    });
  }
  insert (pos, content) {
    let left = null;
    let right = this._start;
    let count = 0;
    const y = this._y;
    while (right !== null) {
      const rightLen = right._deleted ? 0 : (right._length - 1);
      if (count <= pos && pos <= count + rightLen) {
        const splitDiff = pos - count;
        right = right._splitAt(y, splitDiff);
        left = right._left;
        count += splitDiff;
        break
      }
      if (!right._deleted) {
        count += right._length;
      }
      left = right;
      right = right._right;
    }
    if (pos > count) {
      throw new Error('Position exceeds array range!')
    }
    this.insertAfter(left, content);
  }
  _logString () {
    const left = this._left !== null ? this._left._lastId : null;
    const origin = this._origin !== null ? this._origin._lastId : null;
    return `YArray(id:${logID(this._id)},start:${logID(this._start)},left:${logID(left)},origin:${logID(origin)},right:${logID(this._right)},parent:${logID(this._parent)},parentSub:${this._parentSub})`
  }
}

class YMapEvent extends YEvent {
  constructor (ymap, subs, remote) {
    super(ymap);
    this.keysChanged = subs;
    this.remote = remote;
  }
}

class YMap extends Type {
  _callObserver (transaction, parentSubs, remote) {
    this._callEventHandler(transaction, new YMapEvent(this, parentSubs, remote));
  }
  toJSON () {
    const map = {};
    for (let [key, item] of this._map) {
      if (!item._deleted) {
        let res;
        if (item instanceof Type) {
          if (item.toJSON !== undefined) {
            res = item.toJSON();
          } else {
            res = item.toString();
          }
        } else {
          res = item._content[0];
        }
        map[key] = res;
      }
    }
    return map
  }
  keys () {
    let keys = [];
    for (let [key, value] of this._map) {
      if (!value._deleted) {
        keys.push(key);
      }
    }
    return keys
  }
  delete (key) {
    this._transact((y) => {
      let c = this._map.get(key);
      if (y !== null && c !== undefined) {
        c._delete(y);
      }
    });
  }
  set (key, value) {
    this._transact(y => {
      const old = this._map.get(key) || null;
      if (old !== null) {
        if (old instanceof ItemJSON && old._content[0] === value) {
          // Trying to overwrite with same value
          // break here
          return value
        }
        if (y !== null) {
          old._delete(y);
        }
      }
      let v;
      if (typeof value === 'function') {
        v = new value(); // eslint-disable-line new-cap
        value = v;
      } else if (value instanceof Item) {
        v = value;
      } else {
        v = new ItemJSON();
        v._content = [value];
      }
      v._right = old;
      v._right_origin = old;
      v._parent = this;
      v._parentSub = key;
      if (y !== null) {
        v._integrate(y);
      } else {
        this._map.set(key, v);
      }
    });
    return value
  }
  get (key) {
    let v = this._map.get(key);
    if (v === undefined || v._deleted) {
      return undefined
    }
    if (v instanceof Type) {
      return v
    } else {
      return v._content[v._content.length - 1]
    }
  }
  has (key) {
    let v = this._map.get(key);
    if (v === undefined || v._deleted) {
      return false
    } else {
      return true
    }
  }
  _logString () {
    const left = this._left !== null ? this._left._lastId : null;
    const origin = this._origin !== null ? this._origin._lastId : null;
    return `YMap(id:${logID(this._id)},mapSize:${this._map.size},left:${logID(left)},origin:${logID(origin)},right:${logID(this._right)},parent:${logID(this._parent)},parentSub:${this._parentSub})`
  }
}

class YText extends YArray {
  constructor (string) {
    super();
    if (typeof string === 'string') {
      const start = new ItemString();
      start._parent = this;
      start._content = string;
      this._start = start;
    }
  }
  toString () {
    const strBuilder = [];
    let n = this._start;
    while (n !== null) {
      if (!n._deleted) {
        strBuilder.push(n._content);
      }
      n = n._right;
    }
    return strBuilder.join('')
  }
  insert (pos, text) {
    this._transact(y => {
      let left = null;
      let right = this._start;
      let count = 0;
      while (right !== null) {
        if (count <= pos && pos < count + right._length) {
          const splitDiff = pos - count;
          right = right._splitAt(this._y, pos - count);
          left = right._left;
          count += splitDiff;
          break
        }
        count += right._length;
        left = right;
        right = right._right;
      }
      if (pos > count) {
        throw new Error('Position exceeds array range!')
      }
      let item = new ItemString();
      item._origin = left;
      item._left = left;
      item._right = right;
      item._right_origin = right;
      item._parent = this;
      item._content = text;
      if (y !== null) {
        item._integrate(this._y);
      } else if (left === null) {
        this._start = item;
      } else {
        left._right = item;
      }
    });
  }
  _logString () {
    const left = this._left !== null ? this._left._lastId : null;
    const origin = this._origin !== null ? this._origin._lastId : null;
    return `YText(id:${logID(this._id)},start:${logID(this._start)},left:${logID(left)},origin:${logID(origin)},right:${logID(this._right)},parent:${logID(this._parent)},parentSub:${this._parentSub})`
  }
}

class YXmlText extends YText {
  constructor (arg1) {
    let dom = null;
    let initialText = null;
    if (arg1 != null) {
      if (arg1.nodeType != null && arg1.nodeType === arg1.TEXT_NODE) {
        dom = arg1;
        initialText = dom.nodeValue;
      } else if (typeof arg1 === 'string') {
        initialText = arg1;
      }
    }
    super(initialText);
    this._dom = null;
    this._domObserver = null;
    this._domObserverListener = null;
    this._scrollElement = null;
    if (dom !== null) {
      this._setDom(arg1);
    }
    /*
    var token = true
    this._mutualExclude = f => {
      if (token) {
        token = false
        try {
          f()
        } catch (e) {
          console.error(e)
        }
        this._domObserver.takeRecords()
        token = true
      }
    }
    this.observe(event => {
      if (this._dom != null) {
        const dom = this._dom
        this._mutualExclude(() => {
          let anchorViewPosition = getAnchorViewPosition(this._scrollElement)
          let anchorViewFix
          if (anchorViewPosition !== null && (anchorViewPosition.anchor !== null || getBoundingClientRect(this._dom).top <= 0)) {
            anchorViewFix = anchorViewPosition
          } else {
            anchorViewFix = null
          }
          dom.nodeValue = this.toString()
          fixScrollPosition(this._scrollElement, anchorViewFix)
        })
      }
    })
    */
  }
  setDomFilter () {}
  enableSmartScrolling (scrollElement) {
    this._scrollElement = scrollElement;
  }
  _setDom (dom) {
    if (this._dom != null) {
      this._unbindFromDom();
    }
    if (dom._yxml != null) {
      dom._yxml._unbindFromDom();
    }
    // set marker
    this._dom = dom;
    dom._yxml = this;
  }
  getDom (_document) {
    _document = _document || document;
    if (this._dom === null) {
      const dom = _document.createTextNode(this.toString());
      this._setDom(dom);
      return dom
    }
    return this._dom
  }
  _delete (y, createDelete) {
    this._unbindFromDom();
    super._delete(y, createDelete);
  }
  _unbindFromDom () {
    if (this._domObserver != null) {
      this._domObserver.disconnect();
      this._domObserver = null;
    }
    if (this._dom != null) {
      this._dom._yxml = null;
      this._dom = null;
    }
  }
}

function defaultDomFilter (node, attributes) {
  return attributes
}



// get BoundingClientRect that works on text nodes




function iterateUntilUndeleted (item) {
  while (item !== null && item._deleted) {
    item = item._right;
  }
  return item
}

function _insertNodeHelper (yxml, prevExpectedNode, child) {
  let insertedNodes = yxml.insertDomElementsAfter(prevExpectedNode, [child]);
  if (insertedNodes.length > 0) {
    return insertedNodes[0]
  } else {
    return prevExpectedNode
  }
}

/*
 * 1. Check if any of the nodes was deleted
 * 2. Iterate over the children.
 *    2.1 If a node exists without _yxml property, insert a new node
 *    2.2 If _contents.length < dom.childNodes.length, fill the
 *        rest of _content with childNodes
 *    2.3 If a node was moved, delete it and
 *       recreate a new yxml element that is bound to that node.
 *       You can detect that a node was moved because expectedId
 *       !== actualId in the list
 */
function applyChangesFromDom (dom) {
  const yxml = dom._yxml;
  const y = yxml._y;
  let knownChildren =
    new Set(
      Array.prototype.map.call(dom.childNodes, child => child._yxml)
      .filter(id => id !== undefined)
    );
  // 1. Check if any of the nodes was deleted
  yxml.forEach(function (childType, i) {
    if (!knownChildren.has(childType)) {
      childType._delete(y);
    }
  });
  // 2. iterate
  let childNodes = dom.childNodes;
  let len = childNodes.length;
  let prevExpectedNode = null;
  let expectedNode = iterateUntilUndeleted(yxml._start);
  for (let domCnt = 0; domCnt < len; domCnt++) {
    const child = childNodes[domCnt];
    const childYXml = child._yxml;
    if (childYXml != null) {
      if (childYXml === false) {
        // should be ignored or is going to be deleted
        continue
      }
      if (expectedNode !== null) {
        if (expectedNode !== childYXml) {
          // 2.3 Not expected node
          if (childYXml._parent !== this) {
            // element is going to be deleted by its previous parent
            child._yxml = null;
          } else {
            childYXml._delete(y);
          }
          prevExpectedNode = _insertNodeHelper(yxml, prevExpectedNode, child);
        } else {
          prevExpectedNode = expectedNode;
          expectedNode = iterateUntilUndeleted(expectedNode._right);
        }
        // if this is the expected node id, just continue
      } else {
        // 2.2 fill _conten with child nodes
        prevExpectedNode = _insertNodeHelper(yxml, prevExpectedNode, child);
      }
    } else {
      // 2.1 A new node was found
      prevExpectedNode = _insertNodeHelper(yxml, prevExpectedNode, child);
    }
  }
}

function reflectChangesOnDom (events) {
  // Make sure that no filtered attributes are applied to the structure
  // if they were, delete them
  /*
  events.forEach(event => {
    const target = event.target
    if (event.attributesChanged === undefined) {
      // event.target is Y.XmlText
      return
    }
    const keys = this._domFilter(target.nodeName, Array.from(event.attributesChanged))
    if (keys === null) {
      target._delete()
    } else {
      const removeKeys = new Set() // is a copy of event.attributesChanged
      event.attributesChanged.forEach(key => { removeKeys.add(key) })
      keys.forEach(key => {
        // remove all accepted keys from removeKeys
        removeKeys.delete(key)
      })
      // remove the filtered attribute
      removeKeys.forEach(key => {
        target.removeAttribute(key)
      })
    }
  })
  */
  this._mutualExclude(() => {
    events.forEach(event => {
      const yxml = event.target;
      const dom = yxml._dom;
      if (dom != null) {
        // TODO: do this once before applying stuff
        // let anchorViewPosition = getAnchorViewPosition(yxml._scrollElement)
        if (yxml.constructor === YXmlText) {
          yxml._dom.nodeValue = yxml.toString();
        } else {
          // update attributes
          event.attributesChanged.forEach(attributeName => {
            const value = yxml.getAttribute(attributeName);
            if (value === undefined) {
              dom.removeAttribute(attributeName);
            } else {
              dom.setAttribute(attributeName, value);
            }
          });
          if (event.childListChanged) {
            // create fragment of undeleted nodes
            const fragment = document.createDocumentFragment();
            yxml.forEach(function (t) {
              fragment.append(t.getDom());
            });
            // remove remainding nodes
            let lastChild = dom.lastChild;
            while (lastChild !== null) {
              dom.removeChild(lastChild);
              lastChild = dom.lastChild;
            }
            // insert fragment of undeleted nodes
            dom.append(fragment);
          }
        }
        /* TODO: smartscrolling
        .. else if (event.type === 'childInserted' || event.type === 'insert') {
          let nodes = event.values
          for (let i = nodes.length - 1; i >= 0; i--) {
            let node = nodes[i]
            node.setDomFilter(yxml._domFilter)
            node.enableSmartScrolling(yxml._scrollElement)
            let dom = node.getDom()
            let fixPosition = null
            let nextDom = null
            if (yxml._content.length > event.index + i + 1) {
              nextDom = yxml.get(event.index + i + 1).getDom()
            }
            yxml._dom.insertBefore(dom, nextDom)
            if (anchorViewPosition === null) {
              // nop
            } else if (anchorViewPosition.anchor !== null) {
              // no scrolling when current selection
              if (!dom.contains(anchorViewPosition.anchor) && !anchorViewPosition.anchor.contains(dom)) {
                fixPosition = anchorViewPosition
              }
            } else if (getBoundingClientRect(dom).top <= 0) {
              // adjust scrolling if modified element is out of view,
              // there is no anchor element, and the browser did not adjust scrollTop (this is checked later)
              fixPosition = anchorViewPosition
            }
            fixScrollPosition(yxml._scrollElement, fixPosition)
          }
        } else if (event.type === 'childRemoved' || event.type === 'delete') {
          for (let i = event.values.length - 1; i >= 0; i--) {
            let dom = event.values[i]._dom
            let fixPosition = null
            if (anchorViewPosition === null) {
              // nop
            } else if (anchorViewPosition.anchor !== null) {
              // no scrolling when current selection
              if (!dom.contains(anchorViewPosition.anchor) && !anchorViewPosition.anchor.contains(dom)) {
                fixPosition = anchorViewPosition
              }
            } else if (getBoundingClientRect(dom).top <= 0) {
              // adjust scrolling if modified element is out of view,
              // there is no anchor element, and the browser did not adjust scrollTop (this is checked later)
              fixPosition = anchorViewPosition
            }
            dom.remove()
            fixScrollPosition(yxml._scrollElement, fixPosition)
          }
        }
        */
      }
    });
  });
}

function getRelativePosition (type, offset) {
  if (offset === 0) {
    return ['startof', type._id.user, type._id.clock || null, type._id.name || null, type._id.type || null]
  } else {
    let t = type._start;
    while (t !== null) {
      if (t._length >= offset) {
        return [t._id.user, t._id.clock + offset - 1]
      }
      if (t._right === null) {
        return [t._id.user, t._id.clock + t._length - 1]
      }
      if (!t._deleted) {
        offset -= t._length;
      }
      t = t._right;
    }
    return null
  }
}

function fromRelativePosition (y, rpos) {
  if (rpos[0] === 'startof') {
    let id;
    if (rpos[3] === null) {
      id = new ID(rpos[1], rpos[2]);
    } else {
      id = new RootID(rpos[3], rpos[4]);
    }
    return {
      type: y.os.get(id),
      offset: 0
    }
  } else {
    let offset = 0;
    let struct = y.os.findNodeWithUpperBound(new ID(rpos[0], rpos[1])).val;
    const parent = struct._parent;
    if (parent._deleted) {
      return null
    }
    if (!struct._deleted) {
      offset = rpos[1] - struct._id.clock + 1;
    }
    struct = struct._left;
    while (struct !== null) {
      if (!struct._deleted) {
        offset += struct._length;
      }
      struct = struct._left;
    }
    return {
      type: parent,
      offset: offset
    }
  }
}

/* globals getSelection */

let browserSelection = null;
let relativeSelection = null;

let beforeTransactionSelectionFixer;
if (typeof getSelection !== 'undefined') {
  beforeTransactionSelectionFixer = function _beforeTransactionSelectionFixer (y, remote) {
    if (!remote) {
      return
    }
    relativeSelection = { from: null, to: null, fromY: null, toY: null };
    browserSelection = getSelection();
    const anchorNode = browserSelection.anchorNode;
    if (anchorNode !== null && anchorNode._yxml != null) {
      const yxml = anchorNode._yxml;
      relativeSelection.from = getRelativePosition(yxml, browserSelection.anchorOffset);
      relativeSelection.fromY = yxml._y;
    }
    const focusNode = browserSelection.focusNode;
    if (focusNode !== null && focusNode._yxml != null) {
      const yxml = focusNode._yxml;
      relativeSelection.to = getRelativePosition(yxml, browserSelection.focusOffset);
      relativeSelection.toY = yxml._y;
    }
  };
} else {
  beforeTransactionSelectionFixer = function _fakeBeforeTransactionSelectionFixer () {};
}

function afterTransactionSelectionFixer (y, remote) {
  if (relativeSelection === null || !remote) {
    return
  }
  const to = relativeSelection.to;
  const from = relativeSelection.from;
  const fromY = relativeSelection.fromY;
  const toY = relativeSelection.toY;
  let shouldUpdate = false;
  let anchorNode = browserSelection.anchorNode;
  let anchorOffset = browserSelection.anchorOffset;
  let focusNode = browserSelection.focusNode;
  let focusOffset = browserSelection.focusOffset;
  if (from !== null) {
    let sel = fromRelativePosition(fromY, from);
    if (sel !== null) {
      shouldUpdate = true;
      anchorNode = sel.type.getDom();
      anchorOffset = sel.offset;
    }
  }
  if (to !== null) {
    let sel = fromRelativePosition(toY, to);
    if (sel !== null) {
      focusNode = sel.type.getDom();
      focusOffset = sel.offset;
      shouldUpdate = true;
    }
  }
  if (shouldUpdate) {
    browserSelection.setBaseAndExtent(
      anchorNode,
      anchorOffset,
      focusNode,
      focusOffset
    );
  }
  // delete, so the objects can be gc'd
  relativeSelection = null;
  browserSelection = null;
}

class YXmlEvent extends YEvent {
  constructor (target, subs, remote) {
    super(target);
    this.childListChanged = false;
    this.attributesChanged = new Set();
    this.remote = remote;
    subs.forEach((sub) => {
      if (sub === null) {
        this.childListChanged = true;
      } else {
        this.attributesChanged.add(sub);
      }
    });
  }
}

/**
 * This library modifies the diff-patch-match library by Neil Fraser
 * by removing the patch and match functionality and certain advanced
 * options in the diff function. The original license is as follows:
 *
 * ===
 *
 * Diff Match and Patch
 *
 * Copyright 2006 Google Inc.
 * http://code.google.com/p/google-diff-match-patch/
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


/**
 * The data structure representing a diff is an array of tuples:
 * [[DIFF_DELETE, 'Hello'], [DIFF_INSERT, 'Goodbye'], [DIFF_EQUAL, ' world.']]
 * which means: delete 'Hello', add 'Goodbye' and keep ' world.'
 */
var DIFF_DELETE = -1;
var DIFF_INSERT = 1;
var DIFF_EQUAL = 0;


/**
 * Find the differences between two texts.  Simplifies the problem by stripping
 * any common prefix or suffix off the texts before diffing.
 * @param {string} text1 Old string to be diffed.
 * @param {string} text2 New string to be diffed.
 * @param {Int} cursor_pos Expected edit position in text1 (optional)
 * @return {Array} Array of diff tuples.
 */
function diff_main(text1, text2, cursor_pos) {
  // Check for equality (speedup).
  if (text1 == text2) {
    if (text1) {
      return [[DIFF_EQUAL, text1]];
    }
    return [];
  }

  // Check cursor_pos within bounds
  if (cursor_pos < 0 || text1.length < cursor_pos) {
    cursor_pos = null;
  }

  // Trim off common prefix (speedup).
  var commonlength = diff_commonPrefix(text1, text2);
  var commonprefix = text1.substring(0, commonlength);
  text1 = text1.substring(commonlength);
  text2 = text2.substring(commonlength);

  // Trim off common suffix (speedup).
  commonlength = diff_commonSuffix(text1, text2);
  var commonsuffix = text1.substring(text1.length - commonlength);
  text1 = text1.substring(0, text1.length - commonlength);
  text2 = text2.substring(0, text2.length - commonlength);

  // Compute the diff on the middle block.
  var diffs = diff_compute_(text1, text2);

  // Restore the prefix and suffix.
  if (commonprefix) {
    diffs.unshift([DIFF_EQUAL, commonprefix]);
  }
  if (commonsuffix) {
    diffs.push([DIFF_EQUAL, commonsuffix]);
  }
  diff_cleanupMerge(diffs);
  if (cursor_pos != null) {
    diffs = fix_cursor(diffs, cursor_pos);
  }
  diffs = fix_emoji(diffs);
  return diffs;
}


/**
 * Find the differences between two texts.  Assumes that the texts do not
 * have any common prefix or suffix.
 * @param {string} text1 Old string to be diffed.
 * @param {string} text2 New string to be diffed.
 * @return {Array} Array of diff tuples.
 */
function diff_compute_(text1, text2) {
  var diffs;

  if (!text1) {
    // Just add some text (speedup).
    return [[DIFF_INSERT, text2]];
  }

  if (!text2) {
    // Just delete some text (speedup).
    return [[DIFF_DELETE, text1]];
  }

  var longtext = text1.length > text2.length ? text1 : text2;
  var shorttext = text1.length > text2.length ? text2 : text1;
  var i = longtext.indexOf(shorttext);
  if (i != -1) {
    // Shorter text is inside the longer text (speedup).
    diffs = [[DIFF_INSERT, longtext.substring(0, i)],
             [DIFF_EQUAL, shorttext],
             [DIFF_INSERT, longtext.substring(i + shorttext.length)]];
    // Swap insertions for deletions if diff is reversed.
    if (text1.length > text2.length) {
      diffs[0][0] = diffs[2][0] = DIFF_DELETE;
    }
    return diffs;
  }

  if (shorttext.length == 1) {
    // Single character string.
    // After the previous speedup, the character can't be an equality.
    return [[DIFF_DELETE, text1], [DIFF_INSERT, text2]];
  }

  // Check to see if the problem can be split in two.
  var hm = diff_halfMatch_(text1, text2);
  if (hm) {
    // A half-match was found, sort out the return data.
    var text1_a = hm[0];
    var text1_b = hm[1];
    var text2_a = hm[2];
    var text2_b = hm[3];
    var mid_common = hm[4];
    // Send both pairs off for separate processing.
    var diffs_a = diff_main(text1_a, text2_a);
    var diffs_b = diff_main(text1_b, text2_b);
    // Merge the results.
    return diffs_a.concat([[DIFF_EQUAL, mid_common]], diffs_b);
  }

  return diff_bisect_(text1, text2);
}


/**
 * Find the 'middle snake' of a diff, split the problem in two
 * and return the recursively constructed diff.
 * See Myers 1986 paper: An O(ND) Difference Algorithm and Its Variations.
 * @param {string} text1 Old string to be diffed.
 * @param {string} text2 New string to be diffed.
 * @return {Array} Array of diff tuples.
 * @private
 */
function diff_bisect_(text1, text2) {
  // Cache the text lengths to prevent multiple calls.
  var text1_length = text1.length;
  var text2_length = text2.length;
  var max_d = Math.ceil((text1_length + text2_length) / 2);
  var v_offset = max_d;
  var v_length = 2 * max_d;
  var v1 = new Array(v_length);
  var v2 = new Array(v_length);
  // Setting all elements to -1 is faster in Chrome & Firefox than mixing
  // integers and undefined.
  for (var x = 0; x < v_length; x++) {
    v1[x] = -1;
    v2[x] = -1;
  }
  v1[v_offset + 1] = 0;
  v2[v_offset + 1] = 0;
  var delta = text1_length - text2_length;
  // If the total number of characters is odd, then the front path will collide
  // with the reverse path.
  var front = (delta % 2 != 0);
  // Offsets for start and end of k loop.
  // Prevents mapping of space beyond the grid.
  var k1start = 0;
  var k1end = 0;
  var k2start = 0;
  var k2end = 0;
  for (var d = 0; d < max_d; d++) {
    // Walk the front path one step.
    for (var k1 = -d + k1start; k1 <= d - k1end; k1 += 2) {
      var k1_offset = v_offset + k1;
      var x1;
      if (k1 == -d || (k1 != d && v1[k1_offset - 1] < v1[k1_offset + 1])) {
        x1 = v1[k1_offset + 1];
      } else {
        x1 = v1[k1_offset - 1] + 1;
      }
      var y1 = x1 - k1;
      while (x1 < text1_length && y1 < text2_length &&
             text1.charAt(x1) == text2.charAt(y1)) {
        x1++;
        y1++;
      }
      v1[k1_offset] = x1;
      if (x1 > text1_length) {
        // Ran off the right of the graph.
        k1end += 2;
      } else if (y1 > text2_length) {
        // Ran off the bottom of the graph.
        k1start += 2;
      } else if (front) {
        var k2_offset = v_offset + delta - k1;
        if (k2_offset >= 0 && k2_offset < v_length && v2[k2_offset] != -1) {
          // Mirror x2 onto top-left coordinate system.
          var x2 = text1_length - v2[k2_offset];
          if (x1 >= x2) {
            // Overlap detected.
            return diff_bisectSplit_(text1, text2, x1, y1);
          }
        }
      }
    }

    // Walk the reverse path one step.
    for (var k2 = -d + k2start; k2 <= d - k2end; k2 += 2) {
      var k2_offset = v_offset + k2;
      var x2;
      if (k2 == -d || (k2 != d && v2[k2_offset - 1] < v2[k2_offset + 1])) {
        x2 = v2[k2_offset + 1];
      } else {
        x2 = v2[k2_offset - 1] + 1;
      }
      var y2 = x2 - k2;
      while (x2 < text1_length && y2 < text2_length &&
             text1.charAt(text1_length - x2 - 1) ==
             text2.charAt(text2_length - y2 - 1)) {
        x2++;
        y2++;
      }
      v2[k2_offset] = x2;
      if (x2 > text1_length) {
        // Ran off the left of the graph.
        k2end += 2;
      } else if (y2 > text2_length) {
        // Ran off the top of the graph.
        k2start += 2;
      } else if (!front) {
        var k1_offset = v_offset + delta - k2;
        if (k1_offset >= 0 && k1_offset < v_length && v1[k1_offset] != -1) {
          var x1 = v1[k1_offset];
          var y1 = v_offset + x1 - k1_offset;
          // Mirror x2 onto top-left coordinate system.
          x2 = text1_length - x2;
          if (x1 >= x2) {
            // Overlap detected.
            return diff_bisectSplit_(text1, text2, x1, y1);
          }
        }
      }
    }
  }
  // Diff took too long and hit the deadline or
  // number of diffs equals number of characters, no commonality at all.
  return [[DIFF_DELETE, text1], [DIFF_INSERT, text2]];
}


/**
 * Given the location of the 'middle snake', split the diff in two parts
 * and recurse.
 * @param {string} text1 Old string to be diffed.
 * @param {string} text2 New string to be diffed.
 * @param {number} x Index of split point in text1.
 * @param {number} y Index of split point in text2.
 * @return {Array} Array of diff tuples.
 */
function diff_bisectSplit_(text1, text2, x, y) {
  var text1a = text1.substring(0, x);
  var text2a = text2.substring(0, y);
  var text1b = text1.substring(x);
  var text2b = text2.substring(y);

  // Compute both diffs serially.
  var diffs = diff_main(text1a, text2a);
  var diffsb = diff_main(text1b, text2b);

  return diffs.concat(diffsb);
}


/**
 * Determine the common prefix of two strings.
 * @param {string} text1 First string.
 * @param {string} text2 Second string.
 * @return {number} The number of characters common to the start of each
 *     string.
 */
function diff_commonPrefix(text1, text2) {
  // Quick check for common null cases.
  if (!text1 || !text2 || text1.charAt(0) != text2.charAt(0)) {
    return 0;
  }
  // Binary search.
  // Performance analysis: http://neil.fraser.name/news/2007/10/09/
  var pointermin = 0;
  var pointermax = Math.min(text1.length, text2.length);
  var pointermid = pointermax;
  var pointerstart = 0;
  while (pointermin < pointermid) {
    if (text1.substring(pointerstart, pointermid) ==
        text2.substring(pointerstart, pointermid)) {
      pointermin = pointermid;
      pointerstart = pointermin;
    } else {
      pointermax = pointermid;
    }
    pointermid = Math.floor((pointermax - pointermin) / 2 + pointermin);
  }
  return pointermid;
}


/**
 * Determine the common suffix of two strings.
 * @param {string} text1 First string.
 * @param {string} text2 Second string.
 * @return {number} The number of characters common to the end of each string.
 */
function diff_commonSuffix(text1, text2) {
  // Quick check for common null cases.
  if (!text1 || !text2 ||
      text1.charAt(text1.length - 1) != text2.charAt(text2.length - 1)) {
    return 0;
  }
  // Binary search.
  // Performance analysis: http://neil.fraser.name/news/2007/10/09/
  var pointermin = 0;
  var pointermax = Math.min(text1.length, text2.length);
  var pointermid = pointermax;
  var pointerend = 0;
  while (pointermin < pointermid) {
    if (text1.substring(text1.length - pointermid, text1.length - pointerend) ==
        text2.substring(text2.length - pointermid, text2.length - pointerend)) {
      pointermin = pointermid;
      pointerend = pointermin;
    } else {
      pointermax = pointermid;
    }
    pointermid = Math.floor((pointermax - pointermin) / 2 + pointermin);
  }
  return pointermid;
}


/**
 * Do the two texts share a substring which is at least half the length of the
 * longer text?
 * This speedup can produce non-minimal diffs.
 * @param {string} text1 First string.
 * @param {string} text2 Second string.
 * @return {Array.<string>} Five element Array, containing the prefix of
 *     text1, the suffix of text1, the prefix of text2, the suffix of
 *     text2 and the common middle.  Or null if there was no match.
 */
function diff_halfMatch_(text1, text2) {
  var longtext = text1.length > text2.length ? text1 : text2;
  var shorttext = text1.length > text2.length ? text2 : text1;
  if (longtext.length < 4 || shorttext.length * 2 < longtext.length) {
    return null;  // Pointless.
  }

  /**
   * Does a substring of shorttext exist within longtext such that the substring
   * is at least half the length of longtext?
   * Closure, but does not reference any external variables.
   * @param {string} longtext Longer string.
   * @param {string} shorttext Shorter string.
   * @param {number} i Start index of quarter length substring within longtext.
   * @return {Array.<string>} Five element Array, containing the prefix of
   *     longtext, the suffix of longtext, the prefix of shorttext, the suffix
   *     of shorttext and the common middle.  Or null if there was no match.
   * @private
   */
  function diff_halfMatchI_(longtext, shorttext, i) {
    // Start with a 1/4 length substring at position i as a seed.
    var seed = longtext.substring(i, i + Math.floor(longtext.length / 4));
    var j = -1;
    var best_common = '';
    var best_longtext_a, best_longtext_b, best_shorttext_a, best_shorttext_b;
    while ((j = shorttext.indexOf(seed, j + 1)) != -1) {
      var prefixLength = diff_commonPrefix(longtext.substring(i),
                                           shorttext.substring(j));
      var suffixLength = diff_commonSuffix(longtext.substring(0, i),
                                           shorttext.substring(0, j));
      if (best_common.length < suffixLength + prefixLength) {
        best_common = shorttext.substring(j - suffixLength, j) +
            shorttext.substring(j, j + prefixLength);
        best_longtext_a = longtext.substring(0, i - suffixLength);
        best_longtext_b = longtext.substring(i + prefixLength);
        best_shorttext_a = shorttext.substring(0, j - suffixLength);
        best_shorttext_b = shorttext.substring(j + prefixLength);
      }
    }
    if (best_common.length * 2 >= longtext.length) {
      return [best_longtext_a, best_longtext_b,
              best_shorttext_a, best_shorttext_b, best_common];
    } else {
      return null;
    }
  }

  // First check if the second quarter is the seed for a half-match.
  var hm1 = diff_halfMatchI_(longtext, shorttext,
                             Math.ceil(longtext.length / 4));
  // Check again based on the third quarter.
  var hm2 = diff_halfMatchI_(longtext, shorttext,
                             Math.ceil(longtext.length / 2));
  var hm;
  if (!hm1 && !hm2) {
    return null;
  } else if (!hm2) {
    hm = hm1;
  } else if (!hm1) {
    hm = hm2;
  } else {
    // Both matched.  Select the longest.
    hm = hm1[4].length > hm2[4].length ? hm1 : hm2;
  }

  // A half-match was found, sort out the return data.
  var text1_a, text1_b, text2_a, text2_b;
  if (text1.length > text2.length) {
    text1_a = hm[0];
    text1_b = hm[1];
    text2_a = hm[2];
    text2_b = hm[3];
  } else {
    text2_a = hm[0];
    text2_b = hm[1];
    text1_a = hm[2];
    text1_b = hm[3];
  }
  var mid_common = hm[4];
  return [text1_a, text1_b, text2_a, text2_b, mid_common];
}


/**
 * Reorder and merge like edit sections.  Merge equalities.
 * Any edit section can move as long as it doesn't cross an equality.
 * @param {Array} diffs Array of diff tuples.
 */
function diff_cleanupMerge(diffs) {
  diffs.push([DIFF_EQUAL, '']);  // Add a dummy entry at the end.
  var pointer = 0;
  var count_delete = 0;
  var count_insert = 0;
  var text_delete = '';
  var text_insert = '';
  var commonlength;
  while (pointer < diffs.length) {
    switch (diffs[pointer][0]) {
      case DIFF_INSERT:
        count_insert++;
        text_insert += diffs[pointer][1];
        pointer++;
        break;
      case DIFF_DELETE:
        count_delete++;
        text_delete += diffs[pointer][1];
        pointer++;
        break;
      case DIFF_EQUAL:
        // Upon reaching an equality, check for prior redundancies.
        if (count_delete + count_insert > 1) {
          if (count_delete !== 0 && count_insert !== 0) {
            // Factor out any common prefixies.
            commonlength = diff_commonPrefix(text_insert, text_delete);
            if (commonlength !== 0) {
              if ((pointer - count_delete - count_insert) > 0 &&
                  diffs[pointer - count_delete - count_insert - 1][0] ==
                  DIFF_EQUAL) {
                diffs[pointer - count_delete - count_insert - 1][1] +=
                    text_insert.substring(0, commonlength);
              } else {
                diffs.splice(0, 0, [DIFF_EQUAL,
                                    text_insert.substring(0, commonlength)]);
                pointer++;
              }
              text_insert = text_insert.substring(commonlength);
              text_delete = text_delete.substring(commonlength);
            }
            // Factor out any common suffixies.
            commonlength = diff_commonSuffix(text_insert, text_delete);
            if (commonlength !== 0) {
              diffs[pointer][1] = text_insert.substring(text_insert.length -
                  commonlength) + diffs[pointer][1];
              text_insert = text_insert.substring(0, text_insert.length -
                  commonlength);
              text_delete = text_delete.substring(0, text_delete.length -
                  commonlength);
            }
          }
          // Delete the offending records and add the merged ones.
          if (count_delete === 0) {
            diffs.splice(pointer - count_insert,
                count_delete + count_insert, [DIFF_INSERT, text_insert]);
          } else if (count_insert === 0) {
            diffs.splice(pointer - count_delete,
                count_delete + count_insert, [DIFF_DELETE, text_delete]);
          } else {
            diffs.splice(pointer - count_delete - count_insert,
                count_delete + count_insert, [DIFF_DELETE, text_delete],
                [DIFF_INSERT, text_insert]);
          }
          pointer = pointer - count_delete - count_insert +
                    (count_delete ? 1 : 0) + (count_insert ? 1 : 0) + 1;
        } else if (pointer !== 0 && diffs[pointer - 1][0] == DIFF_EQUAL) {
          // Merge this equality with the previous one.
          diffs[pointer - 1][1] += diffs[pointer][1];
          diffs.splice(pointer, 1);
        } else {
          pointer++;
        }
        count_insert = 0;
        count_delete = 0;
        text_delete = '';
        text_insert = '';
        break;
    }
  }
  if (diffs[diffs.length - 1][1] === '') {
    diffs.pop();  // Remove the dummy entry at the end.
  }

  // Second pass: look for single edits surrounded on both sides by equalities
  // which can be shifted sideways to eliminate an equality.
  // e.g: A<ins>BA</ins>C -> <ins>AB</ins>AC
  var changes = false;
  pointer = 1;
  // Intentionally ignore the first and last element (don't need checking).
  while (pointer < diffs.length - 1) {
    if (diffs[pointer - 1][0] == DIFF_EQUAL &&
        diffs[pointer + 1][0] == DIFF_EQUAL) {
      // This is a single edit surrounded by equalities.
      if (diffs[pointer][1].substring(diffs[pointer][1].length -
          diffs[pointer - 1][1].length) == diffs[pointer - 1][1]) {
        // Shift the edit over the previous equality.
        diffs[pointer][1] = diffs[pointer - 1][1] +
            diffs[pointer][1].substring(0, diffs[pointer][1].length -
                                        diffs[pointer - 1][1].length);
        diffs[pointer + 1][1] = diffs[pointer - 1][1] + diffs[pointer + 1][1];
        diffs.splice(pointer - 1, 1);
        changes = true;
      } else if (diffs[pointer][1].substring(0, diffs[pointer + 1][1].length) ==
          diffs[pointer + 1][1]) {
        // Shift the edit over the next equality.
        diffs[pointer - 1][1] += diffs[pointer + 1][1];
        diffs[pointer][1] =
            diffs[pointer][1].substring(diffs[pointer + 1][1].length) +
            diffs[pointer + 1][1];
        diffs.splice(pointer + 1, 1);
        changes = true;
      }
    }
    pointer++;
  }
  // If shifts were made, the diff needs reordering and another shift sweep.
  if (changes) {
    diff_cleanupMerge(diffs);
  }
}


var diff = diff_main;
diff.INSERT = DIFF_INSERT;
diff.DELETE = DIFF_DELETE;
diff.EQUAL = DIFF_EQUAL;

var diff_1 = diff;

/*
 * Modify a diff such that the cursor position points to the start of a change:
 * E.g.
 *   cursor_normalize_diff([[DIFF_EQUAL, 'abc']], 1)
 *     => [1, [[DIFF_EQUAL, 'a'], [DIFF_EQUAL, 'bc']]]
 *   cursor_normalize_diff([[DIFF_INSERT, 'new'], [DIFF_DELETE, 'xyz']], 2)
 *     => [2, [[DIFF_INSERT, 'new'], [DIFF_DELETE, 'xy'], [DIFF_DELETE, 'z']]]
 *
 * @param {Array} diffs Array of diff tuples
 * @param {Int} cursor_pos Suggested edit position. Must not be out of bounds!
 * @return {Array} A tuple [cursor location in the modified diff, modified diff]
 */
function cursor_normalize_diff (diffs, cursor_pos) {
  if (cursor_pos === 0) {
    return [DIFF_EQUAL, diffs];
  }
  for (var current_pos = 0, i = 0; i < diffs.length; i++) {
    var d = diffs[i];
    if (d[0] === DIFF_DELETE || d[0] === DIFF_EQUAL) {
      var next_pos = current_pos + d[1].length;
      if (cursor_pos === next_pos) {
        return [i + 1, diffs];
      } else if (cursor_pos < next_pos) {
        // copy to prevent side effects
        diffs = diffs.slice();
        // split d into two diff changes
        var split_pos = cursor_pos - current_pos;
        var d_left = [d[0], d[1].slice(0, split_pos)];
        var d_right = [d[0], d[1].slice(split_pos)];
        diffs.splice(i, 1, d_left, d_right);
        return [i + 1, diffs];
      } else {
        current_pos = next_pos;
      }
    }
  }
  throw new Error('cursor_pos is out of bounds!')
}

/*
 * Modify a diff such that the edit position is "shifted" to the proposed edit location (cursor_position).
 *
 * Case 1)
 *   Check if a naive shift is possible:
 *     [0, X], [ 1, Y] -> [ 1, Y], [0, X]    (if X + Y === Y + X)
 *     [0, X], [-1, Y] -> [-1, Y], [0, X]    (if X + Y === Y + X) - holds same result
 * Case 2)
 *   Check if the following shifts are possible:
 *     [0, 'pre'], [ 1, 'prefix'] -> [ 1, 'pre'], [0, 'pre'], [ 1, 'fix']
 *     [0, 'pre'], [-1, 'prefix'] -> [-1, 'pre'], [0, 'pre'], [-1, 'fix']
 *         ^            ^
 *         d          d_next
 *
 * @param {Array} diffs Array of diff tuples
 * @param {Int} cursor_pos Suggested edit position. Must not be out of bounds!
 * @return {Array} Array of diff tuples
 */
function fix_cursor (diffs, cursor_pos) {
  var norm = cursor_normalize_diff(diffs, cursor_pos);
  var ndiffs = norm[1];
  var cursor_pointer = norm[0];
  var d = ndiffs[cursor_pointer];
  var d_next = ndiffs[cursor_pointer + 1];

  if (d == null) {
    // Text was deleted from end of original string,
    // cursor is now out of bounds in new string
    return diffs;
  } else if (d[0] !== DIFF_EQUAL) {
    // A modification happened at the cursor location.
    // This is the expected outcome, so we can return the original diff.
    return diffs;
  } else {
    if (d_next != null && d[1] + d_next[1] === d_next[1] + d[1]) {
      // Case 1)
      // It is possible to perform a naive shift
      ndiffs.splice(cursor_pointer, 2, d_next, d);
      return merge_tuples(ndiffs, cursor_pointer, 2)
    } else if (d_next != null && d_next[1].indexOf(d[1]) === 0) {
      // Case 2)
      // d[1] is a prefix of d_next[1]
      // We can assume that d_next[0] !== 0, since d[0] === 0
      // Shift edit locations..
      ndiffs.splice(cursor_pointer, 2, [d_next[0], d[1]], [0, d[1]]);
      var suffix = d_next[1].slice(d[1].length);
      if (suffix.length > 0) {
        ndiffs.splice(cursor_pointer + 2, 0, [d_next[0], suffix]);
      }
      return merge_tuples(ndiffs, cursor_pointer, 3)
    } else {
      // Not possible to perform any modification
      return diffs;
    }
  }
}

/*
 * Check diff did not split surrogate pairs.
 * Ex. [0, '\uD83D'], [-1, '\uDC36'], [1, '\uDC2F'] -> [-1, '\uD83D\uDC36'], [1, '\uD83D\uDC2F']
 *     '\uD83D\uDC36' === '🐶', '\uD83D\uDC2F' === '🐯'
 *
 * @param {Array} diffs Array of diff tuples
 * @return {Array} Array of diff tuples
 */
function fix_emoji (diffs) {
  var compact = false;
  var starts_with_pair_end = function(str) {
    return str.charCodeAt(0) >= 0xDC00 && str.charCodeAt(0) <= 0xDFFF;
  };
  var ends_with_pair_start = function(str) {
    return str.charCodeAt(str.length-1) >= 0xD800 && str.charCodeAt(str.length-1) <= 0xDBFF;
  };
  for (var i = 2; i < diffs.length; i += 1) {
    if (diffs[i-2][0] === DIFF_EQUAL && ends_with_pair_start(diffs[i-2][1]) &&
        diffs[i-1][0] === DIFF_DELETE && starts_with_pair_end(diffs[i-1][1]) &&
        diffs[i][0] === DIFF_INSERT && starts_with_pair_end(diffs[i][1])) {
      compact = true;

      diffs[i-1][1] = diffs[i-2][1].slice(-1) + diffs[i-1][1];
      diffs[i][1] = diffs[i-2][1].slice(-1) + diffs[i][1];

      diffs[i-2][1] = diffs[i-2][1].slice(0, -1);
    }
  }
  if (!compact) {
    return diffs;
  }
  var fixed_diffs = [];
  for (var i = 0; i < diffs.length; i += 1) {
    if (diffs[i][1].length > 0) {
      fixed_diffs.push(diffs[i]);
    }
  }
  return fixed_diffs;
}

/*
 * Try to merge tuples with their neigbors in a given range.
 * E.g. [0, 'a'], [0, 'b'] -> [0, 'ab']
 *
 * @param {Array} diffs Array of diff tuples.
 * @param {Int} start Position of the first element to merge (diffs[start] is also merged with diffs[start - 1]).
 * @param {Int} length Number of consecutive elements to check.
 * @return {Array} Array of merged diff tuples.
 */
function merge_tuples (diffs, start, length) {
  // Check from (start-1) to (start+length).
  for (var i = start + length - 1; i >= 0 && i >= start - 1; i--) {
    if (i + 1 < diffs.length) {
      var left_d = diffs[i];
      var right_d = diffs[i+1];
      if (left_d[0] === right_d[1]) {
        diffs.splice(i, 2, [left_d[0], left_d[1] + right_d[1]]);
      }
    }
  }
  return diffs;
}

/* global MutationObserver */

function domToYXml (parent, doms) {
  const types = [];
  doms.forEach(d => {
    if (d._yxml != null && d._yxml !== false) {
      d._yxml._unbindFromDom();
    }
    if (parent._domFilter(d, []) !== null) {
      let type;
      if (d.nodeType === d.TEXT_NODE) {
        type = new YXmlText(d);
      } else if (d.nodeType === d.ELEMENT_NODE) {
        type = new YXmlFragment._YXmlElement(d, parent._domFilter);
      } else {
        throw new Error('Unsupported node!')
      }
      type.enableSmartScrolling(parent._scrollElement);
      types.push(type);
    } else {
      d._yxml = false;
    }
  });
  return types
}

class YXmlTreeWalker {
  constructor (root, f) {
    this._filter = f || (() => true);
    this._root = root;
    this._currentNode = root;
    this._firstCall = true;
  }
  [Symbol.iterator] () {
    return this
  }
  next () {
    let n = this._currentNode;
    if (this._firstCall) {
      this._firstCall = false;
      if (!n._deleted && this._filter(n)) {
        return { value: n, done: false }
      }
    }
    do {
      if (!n._deleted && n.constructor === YXmlFragment._YXmlElement && n._start !== null) {
        // walk down in the tree
        n = n._start;
      } else {
        // walk right or up in the tree
        while (n !== this._root) {
          if (n._right !== null) {
            n = n._right;
            break
          }
          n = n._parent;
        }
        if (n === this._root) {
          n = null;
        }
      }
      if (n === this._root) {
        break
      }
    } while (n !== null && (n._deleted || !this._filter(n)))
    this._currentNode = n;
    if (n === null) {
      return { done: true }
    } else {
      return { value: n, done: false }
    }
  }
}

class YXmlFragment extends YArray {
  constructor () {
    super();
    this._dom = null;
    this._domFilter = defaultDomFilter;
    this._domObserver = null;
    // this function makes sure that either the
    // dom event is executed, or the yjs observer is executed
    var token = true;
    this._mutualExclude = f => {
      if (token) {
        token = false;
        try {
          f();
        } catch (e) {
          console.error(e);
        }
        this._domObserver.takeRecords();
        token = true;
      }
    };
  }
  createTreeWalker (filter) {
    return new YXmlTreeWalker(this, filter)
  }
  /**
   * Retrieve first element that matches *query*
   * Similar to DOM's querySelector, but only accepts a subset of its queries
   *
   * Query support:
   *   - tagname
   * TODO:
   *   - id
   *   - attribute
   */
  querySelector (query) {
    query = query.toUpperCase();
    const iterator = new YXmlTreeWalker(this, element => element.nodeName === query);
    const next = iterator.next();
    if (next.done) {
      return null
    } else {
      return next.value
    }
  }
  querySelectorAll (query) {
    query = query.toUpperCase();
    return Array.from(new YXmlTreeWalker(this, element => element.nodeName === query))
  }
  enableSmartScrolling (scrollElement) {
    this._scrollElement = scrollElement;
    this.forEach(xml => {
      xml.enableSmartScrolling(scrollElement);
    });
  }
  setDomFilter (f) {
    this._domFilter = f;
    this.forEach(xml => {
      xml.setDomFilter(f);
    });
  }
  _callObserver (transaction, parentSubs, remote) {
    this._callEventHandler(transaction, new YXmlEvent(this, parentSubs, remote));
  }
  toString () {
    return this.map(xml => xml.toString()).join('')
  }
  _delete (y, createDelete) {
    this._unbindFromDom();
    super._delete(y, createDelete);
  }
  _unbindFromDom () {
    if (this._domObserver != null) {
      this._domObserver.disconnect();
      this._domObserver = null;
    }
    if (this._dom != null) {
      this._dom._yxml = null;
      this._dom = null;
    }
  }
  insertDomElementsAfter (prev, doms) {
    const types = domToYXml(this, doms);
    this.insertAfter(prev, types);
    return types
  }
  insertDomElements (pos, doms) {
    const types = domToYXml(this, doms);
    this.insert(pos, types);
    return types
  }
  getDom () {
    return this._dom
  }
  bindToDom (dom) {
    if (this._dom != null) {
      this._unbindFromDom();
    }
    if (dom._yxml != null) {
      dom._yxml._unbindFromDom();
    }
    if (MutationObserver == null) {
      throw new Error('Not able to bind to a DOM element, because MutationObserver is not available!')
    }
    dom.innerHTML = '';
    this._dom = dom;
    dom._yxml = this;
    this.forEach(t => {
      dom.insertBefore(t.getDom(), null);
    });
    this._bindToDom(dom);
  }
  // binds to a dom element
  // Only call if dom and YXml are isomorph
  _bindToDom (dom) {
    if (this._parent === null || this._parent._dom != null || typeof MutationObserver === 'undefined') {
      // only bind if parent did not already bind
      return
    }
    this._y.on('beforeTransaction', () => {
      this._domObserverListener(this._domObserver.takeRecords());
    });
    this._y.on('beforeTransaction', beforeTransactionSelectionFixer);
    this._y.on('afterTransaction', afterTransactionSelectionFixer);
    // Apply Y.Xml events to dom
    this.observeDeep(reflectChangesOnDom.bind(this));
    // Apply Dom changes on Y.Xml
    this._domObserverListener = mutations => {
      this._mutualExclude(() => {
        this._y.transact(() => {
          let diffChildren = new Set();
          mutations.forEach(mutation => {
            const dom = mutation.target;
            const yxml = dom._yxml;
            if (yxml == null) {
              // dom element is filtered
              return
            }
            switch (mutation.type) {
              case 'characterData':
                var diffs = diff_1(yxml.toString(), dom.nodeValue);
                var pos = 0;
                for (var i = 0; i < diffs.length; i++) {
                  var d = diffs[i];
                  if (d[0] === 0) { // EQUAL
                    pos += d[1].length;
                  } else if (d[0] === -1) { // DELETE
                    yxml.delete(pos, d[1].length);
                  } else { // INSERT
                    yxml.insert(pos, d[1]);
                    pos += d[1].length;
                  }
                }
                break
              case 'attributes':
                let name = mutation.attributeName;
                // check if filter accepts attribute
                if (this._domFilter(dom, [name]).length > 0 && this.constructor !== YXmlFragment) {
                  var val = dom.getAttribute(name);
                  if (yxml.getAttribute(name) !== val) {
                    if (val == null) {
                      yxml.removeAttribute(name);
                    } else {
                      yxml.setAttribute(name, val);
                    }
                  }
                }
                break
              case 'childList':
                diffChildren.add(mutation.target);
                break
            }
          });
          for (let dom of diffChildren) {
            if (dom._yxml != null && dom._yxml !== false) {
              applyChangesFromDom(dom);
            }
          }
        });
      });
    };
    this._domObserver = new MutationObserver(this._domObserverListener);
    this._domObserver.observe(dom, {
      childList: true,
      attributes: true,
      characterData: true,
      subtree: true
    });
    return dom
  }
  _logString () {
    const left = this._left !== null ? this._left._lastId : null;
    const origin = this._origin !== null ? this._origin._lastId : null;
    return `YXml(id:${logID(this._id)},left:${logID(left)},origin:${logID(origin)},right:${this._right},parent:${logID(this._parent)},parentSub:${this._parentSub})`
  }
}

// import diff from 'fast-diff'
class YXmlElement extends YXmlFragment {
  constructor (arg1, arg2) {
    super();
    this.nodeName = null;
    this._scrollElement = null;
    if (typeof arg1 === 'string') {
      this.nodeName = arg1.toUpperCase();
    } else if (arg1 != null && arg1.nodeType != null && arg1.nodeType === arg1.ELEMENT_NODE) {
      this.nodeName = arg1.nodeName;
      this._setDom(arg1);
    } else {
      this.nodeName = 'UNDEFINED';
    }
    if (typeof arg2 === 'function') {
      this._domFilter = arg2;
    }
  }
  _copy (undeleteChildren) {
    let struct = super._copy(undeleteChildren);
    struct.nodeName = this.nodeName;
    return struct
  }
  _setDom (dom) {
    if (this._dom != null) {
      throw new Error('Only call this method if you know what you are doing ;)')
    } else if (dom._yxml != null) { // TODO do i need to check this? - no.. but for dev purps..
      throw new Error('Already bound to an YXml type')
    } else {
      this._dom = dom;
      dom._yxml = this;
      // tag is already set in constructor
      // set attributes
      let attrNames = [];
      for (let i = 0; i < dom.attributes.length; i++) {
        attrNames.push(dom.attributes[i].name);
      }
      attrNames = this._domFilter(dom, attrNames);
      for (let i = 0; i < attrNames.length; i++) {
        let attrName = attrNames[i];
        let attrValue = dom.getAttribute(attrName);
        this.setAttribute(attrName, attrValue);
      }
      this.insertDomElements(0, Array.prototype.slice.call(dom.childNodes));
      this._bindToDom(dom);
      return dom
    }
  }
  _fromBinary (y, decoder) {
    const missing = super._fromBinary(y, decoder);
    this.nodeName = decoder.readVarString();
    return missing
  }
  _toBinary (encoder) {
    super._toBinary(encoder);
    encoder.writeVarString(this.nodeName);
  }
  _integrate (y) {
    if (this.nodeName === null) {
      throw new Error('nodeName must be defined!')
    }
    if (this._domFilter === defaultDomFilter && this._parent instanceof YXmlFragment) {
      this._domFilter = this._parent._domFilter;
    }
    super._integrate(y);
  }
  /**
   * Returns the string representation of the XML document.
   * The attributes are ordered by attribute-name, so you can easily use this
   * method to compare YXmlElements
   */
  toString () {
    const attrs = this.getAttributes();
    const stringBuilder = [];
    const keys = [];
    for (let key in attrs) {
      keys.push(key);
    }
    keys.sort();
    const keysLen = keys.length;
    for (let i = 0; i < keysLen; i++) {
      const key = keys[i];
      stringBuilder.push(key + '="' + attrs[key] + '"');
    }
    const nodeName = this.nodeName.toLocaleLowerCase();
    const attrsString = stringBuilder.length > 0 ? ' ' + stringBuilder.join(' ') : '';
    return `<${nodeName}${attrsString}>${super.toString()}</${nodeName}>`
  }
  removeAttribute () {
    return YMap.prototype.delete.apply(this, arguments)
  }

  setAttribute () {
    return YMap.prototype.set.apply(this, arguments)
  }

  getAttribute () {
    return YMap.prototype.get.apply(this, arguments)
  }

  getAttributes () {
    const obj = {};
    for (let [key, value] of this._map) {
      obj[key] = value._content[0];
    }
    return obj
  }
  getDom (_document) {
    _document = _document || document;
    let dom = this._dom;
    if (dom == null) {
      dom = _document.createElement(this.nodeName);
      this._dom = dom;
      dom._yxml = this;
      let attrs = this.getAttributes();
      for (let key in attrs) {
        dom.setAttribute(key, attrs[key]);
      }
      this.forEach(yxml => {
        dom.appendChild(yxml.getDom(_document));
      });
      this._bindToDom(dom);
    }
    return dom
  }
}

const structs = new Map();
const references = new Map();

function addStruct (reference, structConstructor) {
  structs.set(reference, structConstructor);
  references.set(structConstructor, reference);
}

function getStruct (reference) {
  return structs.get(reference)
}

function getReference (typeConstructor) {
  return references.get(typeConstructor)
}

addStruct(0, ItemJSON);
addStruct(1, ItemString);
addStruct(2, Delete);

addStruct(3, YArray);
addStruct(4, YMap);
addStruct(5, YText);
addStruct(6, YXmlFragment);
addStruct(7, YXmlElement);
addStruct(8, YXmlText);

const RootFakeUserID = 0xFFFFFF;

class RootID {
  constructor (name, typeConstructor) {
    this.user = RootFakeUserID;
    this.name = name;
    this.type = getReference(typeConstructor);
  }
  equals (id) {
    return id !== null && id.user === this.user && id.name === this.name && id.type === this.type
  }
  lessThan (id) {
    return this.user < id.user || (this.user === id.user && (this.name < id.name || (this.name === id.name && this.type < id.type)))
  }
}

class OperationStore extends Tree {
  constructor (y) {
    super();
    this.y = y;
  }
  logTable () {
    const items = [];
    this.iterate(null, null, function (item) {
      items.push({
        id: logID(item),
        origin: logID(item._origin === null ? null : item._origin._lastId),
        left: logID(item._left === null ? null : item._left._lastId),
        right: logID(item._right),
        right_origin: logID(item._right_origin),
        parent: logID(item._parent),
        parentSub: item._parentSub,
        deleted: item._deleted,
        content: JSON.stringify(item._content)
      });
    });
    console.table(items);
  }
  get (id) {
    let struct = this.find(id);
    if (struct === null && id instanceof RootID) {
      const Constr = getStruct(id.type);
      const y = this.y;
      struct = new Constr();
      struct._id = id;
      struct._parent = y;
      y.transact(() => {
        struct._integrate(y);
      });
      this.put(struct);
    }
    return struct
  }
  // Use getItem for structs with _length > 1
  getItem (id) {
    var item = this.findWithUpperBound(id);
    if (item === null) {
      return null
    }
    const itemID = item._id;
    if (id.user === itemID.user && id.clock < itemID.clock + item._length) {
      return item
    } else {
      return null
    }
  }
  // Return an insertion such that id is the first element of content
  // This function manipulates an item, if necessary
  getItemCleanStart (id) {
    var ins = this.getItem(id);
    if (ins === null || ins._length === 1) {
      return ins
    }
    const insID = ins._id;
    if (insID.clock === id.clock) {
      return ins
    } else {
      return ins._splitAt(this.y, id.clock - insID.clock)
    }
  }
  // Return an insertion such that id is the last element of content
  // This function manipulates an operation, if necessary
  getItemCleanEnd (id) {
    var ins = this.getItem(id);
    if (ins === null || ins._length === 1) {
      return ins
    }
    const insID = ins._id;
    if (insID.clock + ins._length - 1 === id.clock) {
      return ins
    } else {
      ins._splitAt(this.y, id.clock - insID.clock + 1);
      return ins
    }
  }
}

class StateStore {
  constructor (y) {
    this.y = y;
    this.state = new Map();
  }
  logTable () {
    const entries = [];
    for (let [user, state] of this.state) {
      entries.push({
        user, state
      });
    }
    console.table(entries);
  }
  getNextID (len) {
    const user = this.y.userID;
    const state = this.getState(user);
    this.setState(user, state + len);
    return new ID(user, state)
  }
  updateRemoteState (struct) {
    let user = struct._id.user;
    let userState = this.state.get(user);
    while (struct !== null && struct._id.clock === userState) {
      userState += struct._length;
      struct = this.y.os.get(new ID(user, userState));
    }
    this.state.set(user, userState);
  }
  getState (user) {
    let state = this.state.get(user);
    if (state == null) {
      return 0
    }
    return state
  }
  setState (user, state) {
    // TODO: modify missingi structs here
    const beforeState = this.y._transaction.beforeState;
    if (!beforeState.has(user)) {
      beforeState.set(user, this.getState(user));
    }
    this.state.set(user, state);
  }
}

/* global crypto */

function generateUserID () {
  if (typeof crypto !== 'undefined' && crypto.getRandomValue != null) {
    // browser
    let arr = new Uint32Array(1);
    crypto.getRandomValues(arr);
    return arr[0]
  } else if (typeof crypto !== 'undefined' && crypto.randomBytes != null) {
    // node
    let buf = crypto.randomBytes(4);
    return new Uint32Array(buf.buffer)[0]
  } else {
    return Math.ceil(Math.random() * 0xFFFFFFFF)
  }
}

class NamedEventHandler {
  constructor () {
    this._eventListener = new Map();
  }
  _getListener (name) {
    let listeners = this._eventListener.get(name);
    if (listeners === undefined) {
      listeners = {
        once: new Set(),
        on: new Set()
      };
      this._eventListener.set(name, listeners);
    }
    return listeners
  }
  once (name, f) {
    let listeners = this._getListener(name);
    listeners.once.add(f);
  }
  on (name, f) {
    let listeners = this._getListener(name);
    listeners.on.add(f);
  }
  off (name, f) {
    if (name == null || f == null) {
      throw new Error('You must specify event name and function!')
    }
    const listener = this._eventListener.get(name);
    if (listener !== undefined) {
      listener.remove(f);
    }
  }
  emit (name, ...args) {
    const listener = this._eventListener.get(name);
    if (listener !== undefined) {
      listener.on.forEach(f => f.apply(null, args));
      listener.once.forEach(f => f.apply(null, args));
      listener.once = new Set();
    } else if (name === 'error') {
      console.error(args[0]);
    }
  }
  destroy () {
    this._eventListener = null;
  }
}

class ReverseOperation {
  constructor (y) {
    this.created = new Date();
    const beforeState = y._transaction.beforeState;
    this.toState = new ID(y.userID, y.ss.getState(y.userID) - 1);
    if (beforeState.has(y.userID)) {
      this.fromState = new ID(y.userID, beforeState.get(y.userID));
    } else {
      this.fromState = this.toState;
    }
    this.deletedStructs = y._transaction.deletedStructs;
  }
}

function isStructInScope (y, struct, scope) {
  while (struct !== y) {
    if (struct === scope) {
      return true
    }
    struct = struct._parent;
  }
  return false
}

function applyReverseOperation (y, scope, reverseBuffer) {
  let performedUndo = false;
  y.transact(() => {
    while (!performedUndo && reverseBuffer.length > 0) {
      let undoOp = reverseBuffer.pop();
      // make sure that it is possible to iterate {from}-{to}
      y.os.getItemCleanStart(undoOp.fromState);
      y.os.getItemCleanEnd(undoOp.toState);
      y.os.iterate(undoOp.fromState, undoOp.toState, op => {
        if (!op._deleted && isStructInScope(y, op, scope)) {
          performedUndo = true;
          op._delete(y);
        }
      });
      for (let op of undoOp.deletedStructs) {
        if (
          isStructInScope(y, op, scope) &&
          op._parent !== y &&
          !op._parent._deleted &&
          (
            op._parent._id.user !== y.userID ||
            op._parent._id.clock < undoOp.fromState.clock ||
            op._parent._id.clock > undoOp.fromState.clock
          )
        ) {
          performedUndo = true;
          op = op._copy(undoOp.deletedStructs);
          op._integrate(y);
        }
      }
    }
  });
  return performedUndo
}

class UndoManager {
  constructor (scope, options = {}) {
    this.options = options;
    options.captureTimeout = options.captureTimeout == null ? 500 : options.captureTimeout;
    this._undoBuffer = [];
    this._redoBuffer = [];
    this._scope = scope;
    this._undoing = false;
    this._redoing = false;
    const y = scope._y;
    this.y = y;
    y.on('afterTransaction', (y, remote) => {
      if (!remote && y._transaction.changedParentTypes.has(scope)) {
        let reverseOperation = new ReverseOperation(y);
        if (!this._undoing) {
          let lastUndoOp = this._undoBuffer.length > 0 ? this._undoBuffer[this._undoBuffer.length - 1] : null;
          if (lastUndoOp !== null && reverseOperation.created - lastUndoOp.created <= options.captureTimeout) {
            lastUndoOp.created = reverseOperation.created;
            lastUndoOp.toState = reverseOperation.toState;
            reverseOperation.deletedStructs.forEach(lastUndoOp.deletedStructs.add, lastUndoOp.deletedStructs);
          } else {
            this._undoBuffer.push(reverseOperation);
          }
          if (!this._redoing) {
            this._redoBuffer = [];
          }
        } else {
          this._redoBuffer.push(reverseOperation);
        }
      }
    });
  }
  undo () {
    this._undoing = true;
    const performedUndo = applyReverseOperation(this.y, this._scope, this._undoBuffer);
    this._undoing = false;
    return performedUndo
  }
  redo () {
    this._redoing = true;
    const performedRedo = applyReverseOperation(this.y, this._scope, this._redoBuffer);
    this._redoing = false;
    return performedRedo
  }
}

/**
 * Helpers.
 */

var s = 1000;
var m = s * 60;
var h = m * 60;
var d = h * 24;
var y = d * 365.25;

/**
 * Parse or format the given `val`.
 *
 * Options:
 *
 *  - `long` verbose formatting [false]
 *
 * @param {String|Number} val
 * @param {Object} [options]
 * @throws {Error} throw an error if val is not a non-empty string or a number
 * @return {String|Number}
 * @api public
 */

var ms = function(val, options) {
  options = options || {};
  var type = typeof val;
  if (type === 'string' && val.length > 0) {
    return parse(val);
  } else if (type === 'number' && isNaN(val) === false) {
    return options.long ? fmtLong(val) : fmtShort(val);
  }
  throw new Error(
    'val is not a non-empty string or a valid number. val=' +
      JSON.stringify(val)
  );
};

/**
 * Parse the given `str` and return milliseconds.
 *
 * @param {String} str
 * @return {Number}
 * @api private
 */

function parse(str) {
  str = String(str);
  if (str.length > 100) {
    return;
  }
  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
    str
  );
  if (!match) {
    return;
  }
  var n = parseFloat(match[1]);
  var type = (match[2] || 'ms').toLowerCase();
  switch (type) {
    case 'years':
    case 'year':
    case 'yrs':
    case 'yr':
    case 'y':
      return n * y;
    case 'days':
    case 'day':
    case 'd':
      return n * d;
    case 'hours':
    case 'hour':
    case 'hrs':
    case 'hr':
    case 'h':
      return n * h;
    case 'minutes':
    case 'minute':
    case 'mins':
    case 'min':
    case 'm':
      return n * m;
    case 'seconds':
    case 'second':
    case 'secs':
    case 'sec':
    case 's':
      return n * s;
    case 'milliseconds':
    case 'millisecond':
    case 'msecs':
    case 'msec':
    case 'ms':
      return n;
    default:
      return undefined;
  }
}

/**
 * Short format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtShort(ms) {
  if (ms >= d) {
    return Math.round(ms / d) + 'd';
  }
  if (ms >= h) {
    return Math.round(ms / h) + 'h';
  }
  if (ms >= m) {
    return Math.round(ms / m) + 'm';
  }
  if (ms >= s) {
    return Math.round(ms / s) + 's';
  }
  return ms + 'ms';
}

/**
 * Long format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtLong(ms) {
  return plural(ms, d, 'day') ||
    plural(ms, h, 'hour') ||
    plural(ms, m, 'minute') ||
    plural(ms, s, 'second') ||
    ms + ' ms';
}

/**
 * Pluralization helper.
 */

function plural(ms, n, name) {
  if (ms < n) {
    return;
  }
  if (ms < n * 1.5) {
    return Math.floor(ms / n) + ' ' + name;
  }
  return Math.ceil(ms / n) + ' ' + name + 's';
}

var debug$1 = createCommonjsModule(function (module, exports) {
/**
 * This is the common logic for both the Node.js and web browser
 * implementations of `debug()`.
 *
 * Expose `debug()` as the module.
 */

exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
exports.coerce = coerce;
exports.disable = disable;
exports.enable = enable;
exports.enabled = enabled;
exports.humanize = ms;

/**
 * The currently active debug mode names, and names to skip.
 */

exports.names = [];
exports.skips = [];

/**
 * Map of special "%n" handling functions, for the debug "format" argument.
 *
 * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
 */

exports.formatters = {};

/**
 * Previous log timestamp.
 */

var prevTime;

/**
 * Select a color.
 * @param {String} namespace
 * @return {Number}
 * @api private
 */

function selectColor(namespace) {
  var hash = 0, i;

  for (i in namespace) {
    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
    hash |= 0; // Convert to 32bit integer
  }

  return exports.colors[Math.abs(hash) % exports.colors.length];
}

/**
 * Create a debugger with the given `namespace`.
 *
 * @param {String} namespace
 * @return {Function}
 * @api public
 */

function createDebug(namespace) {

  function debug() {
    // disabled?
    if (!debug.enabled) return;

    var self = debug;

    // set `diff` timestamp
    var curr = +new Date();
    var ms$$1 = curr - (prevTime || curr);
    self.diff = ms$$1;
    self.prev = prevTime;
    self.curr = curr;
    prevTime = curr;

    // turn the `arguments` into a proper Array
    var args = new Array(arguments.length);
    for (var i = 0; i < args.length; i++) {
      args[i] = arguments[i];
    }

    args[0] = exports.coerce(args[0]);

    if ('string' !== typeof args[0]) {
      // anything else let's inspect with %O
      args.unshift('%O');
    }

    // apply any `formatters` transformations
    var index = 0;
    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
      // if we encounter an escaped % then don't increase the array index
      if (match === '%%') return match;
      index++;
      var formatter = exports.formatters[format];
      if ('function' === typeof formatter) {
        var val = args[index];
        match = formatter.call(self, val);

        // now we need to remove `args[index]` since it's inlined in the `format`
        args.splice(index, 1);
        index--;
      }
      return match;
    });

    // apply env-specific formatting (colors, etc.)
    exports.formatArgs.call(self, args);

    var logFn = debug.log || exports.log || console.log.bind(console);
    logFn.apply(self, args);
  }

  debug.namespace = namespace;
  debug.enabled = exports.enabled(namespace);
  debug.useColors = exports.useColors();
  debug.color = selectColor(namespace);

  // env-specific initialization logic for debug instances
  if ('function' === typeof exports.init) {
    exports.init(debug);
  }

  return debug;
}

/**
 * Enables a debug mode by namespaces. This can include modes
 * separated by a colon and wildcards.
 *
 * @param {String} namespaces
 * @api public
 */

function enable(namespaces) {
  exports.save(namespaces);

  exports.names = [];
  exports.skips = [];

  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
  var len = split.length;

  for (var i = 0; i < len; i++) {
    if (!split[i]) continue; // ignore empty strings
    namespaces = split[i].replace(/\*/g, '.*?');
    if (namespaces[0] === '-') {
      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
    } else {
      exports.names.push(new RegExp('^' + namespaces + '$'));
    }
  }
}

/**
 * Disable debug output.
 *
 * @api public
 */

function disable() {
  exports.enable('');
}

/**
 * Returns true if the given mode name is enabled, false otherwise.
 *
 * @param {String} name
 * @return {Boolean}
 * @api public
 */

function enabled(name) {
  var i, len;
  for (i = 0, len = exports.skips.length; i < len; i++) {
    if (exports.skips[i].test(name)) {
      return false;
    }
  }
  for (i = 0, len = exports.names.length; i < len; i++) {
    if (exports.names[i].test(name)) {
      return true;
    }
  }
  return false;
}

/**
 * Coerce `val`.
 *
 * @param {Mixed} val
 * @return {Mixed}
 * @api private
 */

function coerce(val) {
  if (val instanceof Error) return val.stack || val.message;
  return val;
}
});

var debug_1 = debug$1.coerce;
var debug_2 = debug$1.disable;
var debug_3 = debug$1.enable;
var debug_4 = debug$1.enabled;
var debug_5 = debug$1.humanize;
var debug_6 = debug$1.names;
var debug_7 = debug$1.skips;
var debug_8 = debug$1.formatters;

var browser = createCommonjsModule(function (module, exports) {
/**
 * This is the web browser implementation of `debug()`.
 *
 * Expose `debug()` as the module.
 */

exports = module.exports = debug$1;
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
exports.storage = 'undefined' != typeof chrome
               && 'undefined' != typeof chrome.storage
                  ? chrome.storage.local
                  : localstorage();

/**
 * Colors.
 */

exports.colors = [
  'lightseagreen',
  'forestgreen',
  'goldenrod',
  'dodgerblue',
  'darkorchid',
  'crimson'
];

/**
 * Currently only WebKit-based Web Inspectors, Firefox >= v31,
 * and the Firebug extension (any Firefox version) are known
 * to support "%c" CSS customizations.
 *
 * TODO: add a `localStorage` variable to explicitly enable/disable colors
 */

function useColors() {
  // NB: In an Electron preload script, document will be defined but not fully
  // initialized. Since we know we're in Chrome, we'll just detect this case
  // explicitly
  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
    return true;
  }

  // is webkit? http://stackoverflow.com/a/16459606/376773
  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
    // is firebug? http://stackoverflow.com/a/398120/376773
    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
    // is firefox >= v31?
    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
    // double check webkit in userAgent just in case we are in a worker
    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
}

/**
 * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
 */

exports.formatters.j = function(v) {
  try {
    return JSON.stringify(v);
  } catch (err) {
    return '[UnexpectedJSONParseError]: ' + err.message;
  }
};


/**
 * Colorize log arguments if enabled.
 *
 * @api public
 */

function formatArgs(args) {
  var useColors = this.useColors;

  args[0] = (useColors ? '%c' : '')
    + this.namespace
    + (useColors ? ' %c' : ' ')
    + args[0]
    + (useColors ? '%c ' : ' ')
    + '+' + exports.humanize(this.diff);

  if (!useColors) return;

  var c = 'color: ' + this.color;
  args.splice(1, 0, c, 'color: inherit');

  // the final "%c" is somewhat tricky, because there could be other
  // arguments passed either before or after the %c, so we need to
  // figure out the correct index to insert the CSS into
  var index = 0;
  var lastC = 0;
  args[0].replace(/%[a-zA-Z%]/g, function(match) {
    if ('%%' === match) return;
    index++;
    if ('%c' === match) {
      // we only are interested in the *last* %c
      // (the user may have provided their own)
      lastC = index;
    }
  });

  args.splice(lastC, 0, c);
}

/**
 * Invokes `console.log()` when available.
 * No-op when `console.log` is not a "function".
 *
 * @api public
 */

function log() {
  // this hackery is required for IE8/9, where
  // the `console.log` function doesn't have 'apply'
  return 'object' === typeof console
    && console.log
    && Function.prototype.apply.call(console.log, console, arguments);
}

/**
 * Save `namespaces`.
 *
 * @param {String} namespaces
 * @api private
 */

function save(namespaces) {
  try {
    if (null == namespaces) {
      exports.storage.removeItem('debug');
    } else {
      exports.storage.debug = namespaces;
    }
  } catch(e) {}
}

/**
 * Load `namespaces`.
 *
 * @return {String} returns the previously persisted debug modes
 * @api private
 */

function load() {
  var r;
  try {
    r = exports.storage.debug;
  } catch(e) {}

  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
  if (!r && typeof process !== 'undefined' && 'env' in process) {
    r = process.env.DEBUG;
  }

  return r;
}

/**
 * Enable namespaces listed in `localStorage.debug` initially.
 */

exports.enable(load());

/**
 * Localstorage attempts to return the localstorage.
 *
 * This is necessary because safari throws
 * when a user disables cookies/localstorage
 * and you attempt to access it.
 *
 * @return {LocalStorage}
 * @api private
 */

function localstorage() {
  try {
    return window.localStorage;
  } catch (e) {}
}
});

var browser_1 = browser.log;
var browser_2 = browser.formatArgs;
var browser_3 = browser.save;
var browser_4 = browser.load;
var browser_5 = browser.useColors;
var browser_6 = browser.storage;
var browser_7 = browser.colors;

class AbstractConnector {
  constructor (y, opts) {
    this.y = y;
    this.opts = opts;
    if (opts.role == null || opts.role === 'master') {
      this.role = 'master';
    } else if (opts.role === 'slave') {
      this.role = 'slave';
    } else {
      throw new Error("Role must be either 'master' or 'slave'!")
    }
    this.log = browser('y:connector');
    this.logMessage = browser('y:connector-message');
    this._forwardAppliedStructs = opts.forwardAppliedOperations || false; // TODO: rename
    this.role = opts.role;
    this.connections = new Map();
    this.isSynced = false;
    this.userEventListeners = [];
    this.whenSyncedListeners = [];
    this.currentSyncTarget = null;
    this.debug = opts.debug === true;
    this.broadcastBuffer = new BinaryEncoder();
    this.broadcastBufferSize = 0;
    this.protocolVersion = 11;
    this.authInfo = opts.auth || null;
    this.checkAuth = opts.checkAuth || function () { return Promise.resolve('write') }; // default is everyone has write access
    if (opts.maxBufferLength == null) {
      this.maxBufferLength = -1;
    } else {
      this.maxBufferLength = opts.maxBufferLength;
    }
  }

  reconnect () {
    this.log('reconnecting..');
  }

  disconnect () {
    this.log('discronnecting..');
    this.connections = new Map();
    this.isSynced = false;
    this.currentSyncTarget = null;
    this.whenSyncedListeners = [];
    return Promise.resolve()
  }

  onUserEvent (f) {
    this.userEventListeners.push(f);
  }

  removeUserEventListener (f) {
    this.userEventListeners = this.userEventListeners.filter(g => f !== g);
  }

  userLeft (user) {
    if (this.connections.has(user)) {
      this.log('%s: User left %s', this.y.userID, user);
      this.connections.delete(user);
      // check if isSynced event can be sent now
      this._setSyncedWith(null);
      for (var f of this.userEventListeners) {
        f({
          action: 'userLeft',
          user: user
        });
      }
    }
  }

  userJoined (user, role, auth) {
    if (role == null) {
      throw new Error('You must specify the role of the joined user!')
    }
    if (this.connections.has(user)) {
      throw new Error('This user already joined!')
    }
    this.log('%s: User joined %s', this.y.userID, user);
    this.connections.set(user, {
      uid: user,
      isSynced: false,
      role: role,
      processAfterAuth: [],
      processAfterSync: [],
      auth: auth || null,
      receivedSyncStep2: false
    });
    let defer = {};
    defer.promise = new Promise(function (resolve) { defer.resolve = resolve; });
    this.connections.get(user).syncStep2 = defer;
    for (var f of this.userEventListeners) {
      f({
        action: 'userJoined',
        user: user,
        role: role
      });
    }
    this._syncWithUser(user);
  }

  // Execute a function _when_ we are connected.
  // If not connected, wait until connected
  whenSynced (f) {
    if (this.isSynced) {
      f();
    } else {
      this.whenSyncedListeners.push(f);
    }
  }

  _syncWithUser (userID) {
    if (this.role === 'slave') {
      return // "The current sync has not finished or this is controlled by a master!"
    }
    sendSyncStep1(this, userID);
  }

  _fireIsSyncedListeners () {
    if (!this.isSynced) {
      this.isSynced = true;
      // It is safer to remove this!
      // call whensynced listeners
      for (var f of this.whenSyncedListeners) {
        f();
      }
      this.whenSyncedListeners = [];
      this.y.emit('synced');
    }
  }

  send (uid, buffer) {
    const y = this.y;
    if (!(buffer instanceof ArrayBuffer || buffer instanceof Uint8Array)) {
      throw new Error('Expected Message to be an ArrayBuffer or Uint8Array - don\'t use this method to send custom messages')
    }
    this.log('User%s to User%s: Send \'%y\'', y.userID, uid, buffer);
    this.logMessage('User%s to User%s: Send %Y', y.userID, uid, [y, buffer]);
  }

  broadcast (buffer) {
    const y = this.y;
    if (!(buffer instanceof ArrayBuffer || buffer instanceof Uint8Array)) {
      throw new Error('Expected Message to be an ArrayBuffer or Uint8Array - don\'t use this method to send custom messages')
    }
    this.log('User%s: Broadcast \'%y\'', y.userID, buffer);
    this.logMessage('User%s: Broadcast: %Y', y.userID, [y, buffer]);
  }

  /*
    Buffer operations, and broadcast them when ready.
  */
  broadcastStruct (struct) {
    const firstContent = this.broadcastBuffer.length === 0;
    if (firstContent) {
      this.broadcastBuffer.writeVarString(this.y.room);
      this.broadcastBuffer.writeVarString('update');
      this.broadcastBufferSize = 0;
      this.broadcastBufferSizePos = this.broadcastBuffer.pos;
      this.broadcastBuffer.writeUint32(0);
    }
    this.broadcastBufferSize++;
    struct._toBinary(this.broadcastBuffer);
    if (this.maxBufferLength > 0 && this.broadcastBuffer.length > this.maxBufferLength) {
      // it is necessary to send the buffer now
      // cache the buffer and check if server is responsive
      const buffer = this.broadcastBuffer;
      buffer.setUint32(this.broadcastBufferSizePos, this.broadcastBufferSize);
      this.broadcastBuffer = new BinaryEncoder();
      this.whenRemoteResponsive().then(() => {
        this.broadcast(buffer.createBuffer());
      });
    } else if (firstContent) {
      // send the buffer when all transactions are finished
      // (or buffer exceeds maxBufferLength)
      setTimeout(() => {
        if (this.broadcastBuffer.length > 0) {
          const buffer = this.broadcastBuffer;
          buffer.setUint32(this.broadcastBufferSizePos, this.broadcastBufferSize);
          this.broadcast(buffer.createBuffer());
          this.broadcastBuffer = new BinaryEncoder();
        }
      }, 0);
    }
  }

  /*
   * Somehow check the responsiveness of the remote clients/server
   * Default behavior:
   *   Wait 100ms before broadcasting the next batch of operations
   *
   * Only used when maxBufferLength is set
   *
   */
  whenRemoteResponsive () {
    return new Promise(function (resolve) {
      setTimeout(resolve, 100);
    })
  }

  /*
    You received a raw message, and you know that it is intended for Yjs. Then call this function.
  */
  receiveMessage (sender, buffer, skipAuth) {
    const y = this.y;
    const userID = y.userID;
    skipAuth = skipAuth || false;
    if (!(buffer instanceof ArrayBuffer || buffer instanceof Uint8Array)) {
      return Promise.reject(new Error('Expected Message to be an ArrayBuffer or Uint8Array!'))
    }
    if (sender === userID) {
      return Promise.resolve()
    }
    let decoder = new BinaryDecoder(buffer);
    let encoder = new BinaryEncoder();
    let roomname = decoder.readVarString(); // read room name
    encoder.writeVarString(roomname);
    let messageType = decoder.readVarString();
    let senderConn = this.connections.get(sender);
    this.log('User%s from User%s: Receive \'%s\'', userID, sender, messageType);
    this.logMessage('User%s from User%s: Receive %Y', userID, sender, [y, buffer]);
    if (senderConn == null && !skipAuth) {
      throw new Error('Received message from unknown peer!')
    }
    if (messageType === 'sync step 1' || messageType === 'sync step 2') {
      let auth = decoder.readVarUint();
      if (senderConn.auth == null) {
        senderConn.processAfterAuth.push([messageType, senderConn, decoder, encoder, sender]);
        // check auth
        return this.checkAuth(auth, y, sender).then(authPermissions => {
          if (senderConn.auth == null) {
            senderConn.auth = authPermissions;
            y.emit('userAuthenticated', {
              user: senderConn.uid,
              auth: authPermissions
            });
          }
          let messages = senderConn.processAfterAuth;
          senderConn.processAfterAuth = [];

          messages.forEach(m =>
            this.computeMessage(m[0], m[1], m[2], m[3], m[4])
          );
        })
      }
    }
    if ((skipAuth || senderConn.auth != null) && (messageType !== 'update' || senderConn.isSynced)) {
      this.computeMessage(messageType, senderConn, decoder, encoder, sender, skipAuth);
    } else {
      senderConn.processAfterSync.push([messageType, senderConn, decoder, encoder, sender, false]);
    }
  }

  computeMessage (messageType, senderConn, decoder, encoder, sender, skipAuth) {
    if (messageType === 'sync step 1' && (senderConn.auth === 'write' || senderConn.auth === 'read')) {
      // cannot wait for sync step 1 to finish, because we may wait for sync step 2 in sync step 1 (->lock)
      readSyncStep1(decoder, encoder, this.y, senderConn, sender);
    } else {
      const y = this.y;
      y.transact(function () {
        if (messageType === 'sync step 2' && senderConn.auth === 'write') {
          readSyncStep2(decoder, encoder, y, senderConn, sender);
        } else if (messageType === 'update' && (skipAuth || senderConn.auth === 'write')) {
          integrateRemoteStructs(decoder, encoder, y, senderConn, sender);
        } else {
          throw new Error('Unable to receive message')
        }
      }, true);
    }
  }

  _setSyncedWith (user) {
    if (user != null) {
      const userConn = this.connections.get(user);
      userConn.isSynced = true;
      const messages = userConn.processAfterSync;
      userConn.processAfterSync = [];
      messages.forEach(m => {
        this.computeMessage(m[0], m[1], m[2], m[3], m[4]);
      });
    }
    const conns = Array.from(this.connections.values());
    if (conns.length > 0 && conns.every(u => u.isSynced)) {
      this._fireIsSyncedListeners();
    }
  }
}

// import BinaryEncoder from './Binary/Encoder.js'

function extendPersistence (Y) {
  class AbstractPersistence {
    constructor (y, opts) {
      this.y = y;
      this.opts = opts;
      this.saveOperationsBuffer = [];
      this.log = Y.debug('y:persistence');
    }

    saveToMessageQueue (binary) {
      this.log('Room %s: Save message to message queue', this.y.options.connector.room);
    }

    saveOperations (ops) {
      ops = ops.map(function (op) {
        return Y.Struct[op.struct].encode(op)
      });
      /*
      const saveOperations = () => {
        if (this.saveOperationsBuffer.length > 0) {
          let encoder = new BinaryEncoder()
          encoder.writeVarString(this.opts.room)
          encoder.writeVarString('update')
          let ops = this.saveOperationsBuffer
          this.saveOperationsBuffer = []
          let length = ops.length
          encoder.writeUint32(length)
          for (var i = 0; i < length; i++) {
            let op = ops[i]
            Y.Struct[op.struct].binaryEncode(encoder, op)
          }
          this.saveToMessageQueue(encoder.createBuffer())
        }
      }
      */
      if (this.saveOperationsBuffer.length === 0) {
        this.saveOperationsBuffer = ops;
      } else {
        this.saveOperationsBuffer = this.saveOperationsBuffer.concat(ops);
      }
    }
  }

  Y.AbstractPersistence = AbstractPersistence;
}

YXmlFragment._YXmlElement = YXmlElement;

class Y$2 extends NamedEventHandler {
  constructor (opts) {
    super();
    this._opts = opts;
    this.userID = opts._userID != null ? opts._userID : generateUserID();
    this.share = {};
    this.ds = new DeleteStore(this);
    this.os = new OperationStore(this);
    this.ss = new StateStore(this);
    this.connector = new Y$2[opts.connector.name](this, opts.connector);
    if (opts.persistence != null) {
      this.persistence = new Y$2[opts.persistence.name](this, opts.persistence);
      this.persistence.retrieveContent();
    } else {
      this.persistence = null;
    }
    this.connected = true;
    this._missingStructs = new Map();
    this._readyToIntegrate = [];
    this._transaction = null;
  }
  _beforeChange () {}
  transact (f, remote = false) {
    let initialCall = this._transaction === null;
    if (initialCall) {
      this.emit('beforeTransaction', this, remote);
      this._transaction = new Transaction(this);
    }
    try {
      f(this);
    } catch (e) {
      console.error(e);
    }
    if (initialCall) {
      const transaction = this._transaction;
      this._transaction = null;
      // emit change events on changed types
      transaction.changedTypes.forEach(function (subs, type) {
        if (!type._deleted) {
          type._callObserver(transaction, subs, remote);
        }
      });
      transaction.changedParentTypes.forEach(function (events, type) {
        if (!type._deleted) {
          events = events
            .filter(event =>
              !event.target._deleted
            );
          events
            .forEach(event => {
              event.currentTarget = type;
            });
          // we don't have to check for events.length
          // because there is no way events is empty..
          type._deepEventHandler.callEventListeners(transaction, events);
        }
      });
      if (this._transaction === null) {
        // when all changes & events are processed, emit afterTransaction event
        // only when there are no more transactions
        this.emit('afterTransaction', this, remote);
      }
    }
  }
  // fake _start for root properties (y.set('name', type))
  get _start () {
    return null
  }
  set _start (start) {
    return null
  }
  get room () {
    return this._opts.connector.room
  }
  define (name, TypeConstructor) {
    let id = new RootID(name, TypeConstructor);
    let type = this.os.get(id);
    if (type === null) {
      type = new TypeConstructor();
      type._id = id;
      type._parent = this;
      type._integrate(this);
      if (this.share[name] !== undefined) {
        throw new Error('Type is already defined with a different constructor!')
      }
    }
    if (this.share[name] === undefined) {
      this.share[name] = type;
    }
    return type
  }
  get (name) {
    return this.share[name]
  }
  disconnect () {
    if (this.connected) {
      this.connected = false;
      return this.connector.disconnect()
    } else {
      return Promise.resolve()
    }
  }
  reconnect () {
    if (!this.connected) {
      this.connected = true;
      return this.connector.reconnect()
    } else {
      return Promise.resolve()
    }
  }
  destroy () {
    this.share = null;
    if (this.connector.destroy != null) {
      this.connector.destroy();
    } else {
      this.connector.disconnect();
    }
    this.os = null;
    this.ds = null;
    this.ss = null;
  }
  whenSynced () {
    return new Promise(resolve => {
      this.once('synced', () => {
        resolve();
      });
    })
  }
}

Y$2.extend = function extendYjs () {
  for (var i = 0; i < arguments.length; i++) {
    var f = arguments[i];
    if (typeof f === 'function') {
      f(Y$2);
    } else {
      throw new Error('Expected a function!')
    }
  }
};

// TODO: The following assignments should be moved to yjs-dist
Y$2.AbstractConnector = AbstractConnector;
Y$2.Persisence = extendPersistence;
Y$2.Array = YArray;
Y$2.Map = YMap;
Y$2.Text = YText;
Y$2.XmlElement = YXmlElement;
Y$2.XmlFragment = YXmlFragment;
Y$2.XmlText = YXmlText;

Y$2.utils = {
  BinaryDecoder,
  UndoManager,
  getRelativePosition,
  fromRelativePosition
};

Y$2.debug = browser;
browser.formatters.Y = messageToString;
browser.formatters.y = messageToRoomname;

/* global Y */
var rooms = {};

class TestRoom {
  constructor (roomname) {
    this.room = roomname;
    this.users = new Map();
  }
  join (connector$$1) {
    const userID = connector$$1.y.userID;
    this.users.set(userID, connector$$1);
    for (let [uid, user] of this.users) {
      if (uid !== userID && (user.role === 'master' || connector$$1.role === 'master')) {
        // The order is important because there is no timeout in send/receiveMessage
        // (the user that receives a sync step must already now about the sender)
        if (user.role === 'master') {
          connector$$1.userJoined(uid, user.role);
          user.userJoined(userID, connector$$1.role);
        } else if (connector$$1.role === 'master') {
          user.userJoined(userID, connector$$1.role);
          connector$$1.userJoined(uid, user.role);
        }
      }
    }
  }
  leave (connector$$1) {
    this.users.delete(connector$$1.y.userID);
    this.users.forEach(user => {
      user.userLeft(connector$$1.y.userID);
    });
  }
  send (sender, receiver, m) {
    var user = this.users.get(receiver);
    if (user != null) {
      user.receiveMessage(sender, m);
    }
  }
  broadcast (sender, m) {
    this.users.forEach((user, receiver) => {
      this.send(sender, receiver, m);
    });
  }
  async flushAll (users) {
    let flushing = true;
    let allUsers = Array.from(this.users.values());
    if (users == null) {
      users = allUsers.map(user => user.y);
    }
    while (flushing) {
      await wait(10);
      let res = await Promise.all(allUsers.map(user => user._flushAll(users)));
      flushing = res.some(status => status === 'flushing');
    }
  }
}

function getTestRoom (roomname) {
  if (rooms[roomname] == null) {
    rooms[roomname] = new TestRoom(roomname);
  }
  return rooms[roomname]
}

function extendTestConnector (Y) {
  class TestConnector extends Y.AbstractConnector {
    constructor (y, options) {
      if (options === undefined) {
        throw new Error('Options must not be undefined!')
      }
      if (options.room == null) {
        throw new Error('You must define a room name!')
      }
      options.forwardAppliedOperations = options.role === 'master';
      super(y, options);
      this.options = options;
      this.room = options.room;
      this.chance = options.chance;
      this.testRoom = getTestRoom(this.room);
      this.testRoom.join(this);
    }
    disconnect () {
      this.testRoom.leave(this);
      return super.disconnect()
    }
    logBufferParsed () {
      console.log(' === Logging buffer of user ' + this.y.userID + ' === ');
      for (let [user, conn] of this.connections) {
        console.log(` ${user}:`);
        for (let i = 0; i < conn.buffer.length; i++) {
          console.log(messageToString(conn.buffer[i]));
        }
      }
    }
    reconnect () {
      this.testRoom.join(this);
      super.reconnect();
      return new Promise(resolve => {
        this.whenSynced(resolve);
      })
    }
    send (uid, message) {
      super.send(uid, message);
      this.testRoom.send(this.y.userID, uid, message);
    }
    broadcast (message) {
      super.broadcast(message);
      this.testRoom.broadcast(this.y.userID, message);
    }
    async whenSynced (f) {
      var synced = false;
      var periodicFlushTillSync = () => {
        if (synced) {
          f();
        } else {
          this.testRoom.flushAll([this.y]).then(function () {
            setTimeout(periodicFlushTillSync, 10);
          });
        }
      };
      periodicFlushTillSync();
      return super.whenSynced(function () {
        synced = true;
      })
    }
    receiveMessage (sender, m) {
      if (this.y.userID !== sender && this.connections.has(sender)) {
        var buffer = this.connections.get(sender).buffer;
        if (buffer == null) {
          buffer = this.connections.get(sender).buffer = [];
        }
        buffer.push(m);
        if (this.chance.bool({likelihood: 30})) {
          // flush 1/2 with 30% chance
          var flushLength = Math.round(buffer.length / 2);
          buffer.splice(0, flushLength).forEach(m => {
            super.receiveMessage(sender, m);
          });
        }
      }
    }
    async _flushAll (flushUsers) {
      if (flushUsers.some(u => u.connector.y.userID === this.y.userID)) {
        // this one needs to sync with every other user
        flushUsers = Array.from(this.connections.keys()).map(uid => this.testRoom.users.get(uid).y);
      }
      for (let i = 0; i < flushUsers.length; i++) {
        let userID = flushUsers[i].connector.y.userID;
        if (userID !== this.y.userID && this.connections.has(userID)) {
          let buffer = this.connections.get(userID).buffer;
          if (buffer != null) {
            var messages = buffer.splice(0);
            for (let j = 0; j < messages.length; j++) {
              super.receiveMessage(userID, messages[j]);
            }
          }
        }
      }
      return 'done'
    }
  }
  // TODO: this should be moved to a separate module (dont work on Y)
  Y.test = TestConnector;
}

if (typeof Y !== 'undefined') {
  extendTestConnector(Y);
}

var chance_1 = createCommonjsModule(function (module, exports) {
//  Chance.js 1.0.12
//  http://chancejs.com
//  (c) 2013 Victor Quinn
//  Chance may be freely distributed or modified under the MIT license.

(function () {

    // Constants
    var MAX_INT = 9007199254740992;
    var MIN_INT = -MAX_INT;
    var NUMBERS = '0123456789';
    var CHARS_LOWER = 'abcdefghijklmnopqrstuvwxyz';
    var CHARS_UPPER = CHARS_LOWER.toUpperCase();
    var HEX_POOL  = NUMBERS + "abcdef";

    // Cached array helpers
    var slice = Array.prototype.slice;

    // Constructor
    function Chance (seed) {
        if (!(this instanceof Chance)) {
            if (!seed) { seed = null; } // handle other non-truthy seeds, as described in issue #322
            return seed === null ? new Chance() : new Chance(seed);
        }

        // if user has provided a function, use that as the generator
        if (typeof seed === 'function') {
            this.random = seed;
            return this;
        }

        if (arguments.length) {
            // set a starting value of zero so we can add to it
            this.seed = 0;
        }

        // otherwise, leave this.seed blank so that MT will receive a blank

        for (var i = 0; i < arguments.length; i++) {
            var seedling = 0;
            if (Object.prototype.toString.call(arguments[i]) === '[object String]') {
                for (var j = 0; j < arguments[i].length; j++) {
                    // create a numeric hash for each argument, add to seedling
                    var hash = 0;
                    for (var k = 0; k < arguments[i].length; k++) {
                        hash = arguments[i].charCodeAt(k) + (hash << 6) + (hash << 16) - hash;
                    }
                    seedling += hash;
                }
            } else {
                seedling = arguments[i];
            }
            this.seed += (arguments.length - i) * seedling;
        }

        // If no generator function was provided, use our MT
        this.mt = this.mersenne_twister(this.seed);
        this.bimd5 = this.blueimp_md5();
        this.random = function () {
            return this.mt.random(this.seed);
        };

        return this;
    }

    Chance.prototype.VERSION = "1.0.12";

    // Random helper functions
    function initOptions(options, defaults) {
        options = options || {};

        if (defaults) {
            for (var i in defaults) {
                if (typeof options[i] === 'undefined') {
                    options[i] = defaults[i];
                }
            }
        }

        return options;
    }

    function testRange(test, errorMessage) {
        if (test) {
            throw new RangeError(errorMessage);
        }
    }

    /**
     * Encode the input string with Base64.
     */
    var base64 = function() {
        throw new Error('No Base64 encoder available.');
    };

    // Select proper Base64 encoder.
    (function determineBase64Encoder() {
        if (typeof btoa === 'function') {
            base64 = btoa;
        } else if (typeof Buffer === 'function') {
            base64 = function(input) {
                return new Buffer(input).toString('base64');
            };
        }
    })();

    // -- Basics --

    /**
     *  Return a random bool, either true or false
     *
     *  @param {Object} [options={ likelihood: 50 }] alter the likelihood of
     *    receiving a true or false value back.
     *  @throws {RangeError} if the likelihood is out of bounds
     *  @returns {Bool} either true or false
     */
    Chance.prototype.bool = function (options) {
        // likelihood of success (true)
        options = initOptions(options, {likelihood : 50});

        // Note, we could get some minor perf optimizations by checking range
        // prior to initializing defaults, but that makes code a bit messier
        // and the check more complicated as we have to check existence of
        // the object then existence of the key before checking constraints.
        // Since the options initialization should be minor computationally,
        // decision made for code cleanliness intentionally. This is mentioned
        // here as it's the first occurrence, will not be mentioned again.
        testRange(
            options.likelihood < 0 || options.likelihood > 100,
            "Chance: Likelihood accepts values from 0 to 100."
        );

        return this.random() * 100 < options.likelihood;
    };

    /**
     *  Return a random character.
     *
     *  @param {Object} [options={}] can specify a character pool, only alpha,
     *    only symbols, and casing (lower or upper)
     *  @returns {String} a single random character
     *  @throws {RangeError} Can only specify alpha or symbols, not both
     */
    Chance.prototype.character = function (options) {
        options = initOptions(options);
        testRange(
            options.alpha && options.symbols,
            "Chance: Cannot specify both alpha and symbols."
        );

        var symbols = "!@#$%^&*()[]",
            letters, pool;

        if (options.casing === 'lower') {
            letters = CHARS_LOWER;
        } else if (options.casing === 'upper') {
            letters = CHARS_UPPER;
        } else {
            letters = CHARS_LOWER + CHARS_UPPER;
        }

        if (options.pool) {
            pool = options.pool;
        } else if (options.alpha) {
            pool = letters;
        } else if (options.symbols) {
            pool = symbols;
        } else {
            pool = letters + NUMBERS + symbols;
        }

        return pool.charAt(this.natural({max: (pool.length - 1)}));
    };

    // Note, wanted to use "float" or "double" but those are both JS reserved words.

    // Note, fixed means N OR LESS digits after the decimal. This because
    // It could be 14.9000 but in JavaScript, when this is cast as a number,
    // the trailing zeroes are dropped. Left to the consumer if trailing zeroes are
    // needed
    /**
     *  Return a random floating point number
     *
     *  @param {Object} [options={}] can specify a fixed precision, min, max
     *  @returns {Number} a single floating point number
     *  @throws {RangeError} Can only specify fixed or precision, not both. Also
     *    min cannot be greater than max
     */
    Chance.prototype.floating = function (options) {
        options = initOptions(options, {fixed : 4});
        testRange(
            options.fixed && options.precision,
            "Chance: Cannot specify both fixed and precision."
        );

        var num;
        var fixed = Math.pow(10, options.fixed);

        var max = MAX_INT / fixed;
        var min = -max;

        testRange(
            options.min && options.fixed && options.min < min,
            "Chance: Min specified is out of range with fixed. Min should be, at least, " + min
        );
        testRange(
            options.max && options.fixed && options.max > max,
            "Chance: Max specified is out of range with fixed. Max should be, at most, " + max
        );

        options = initOptions(options, { min : min, max : max });

        // Todo - Make this work!
        // options.precision = (typeof options.precision !== "undefined") ? options.precision : false;

        num = this.integer({min: options.min * fixed, max: options.max * fixed});
        var num_fixed = (num / fixed).toFixed(options.fixed);

        return parseFloat(num_fixed);
    };

    /**
     *  Return a random integer
     *
     *  NOTE the max and min are INCLUDED in the range. So:
     *  chance.integer({min: 1, max: 3});
     *  would return either 1, 2, or 3.
     *
     *  @param {Object} [options={}] can specify a min and/or max
     *  @returns {Number} a single random integer number
     *  @throws {RangeError} min cannot be greater than max
     */
    Chance.prototype.integer = function (options) {
        // 9007199254740992 (2^53) is the max integer number in JavaScript
        // See: http://vq.io/132sa2j
        options = initOptions(options, {min: MIN_INT, max: MAX_INT});
        testRange(options.min > options.max, "Chance: Min cannot be greater than Max.");

        return Math.floor(this.random() * (options.max - options.min + 1) + options.min);
    };

    /**
     *  Return a random natural
     *
     *  NOTE the max and min are INCLUDED in the range. So:
     *  chance.natural({min: 1, max: 3});
     *  would return either 1, 2, or 3.
     *
     *  @param {Object} [options={}] can specify a min and/or maxm or a numerals count.
     *  @returns {Number} a single random integer number
     *  @throws {RangeError} min cannot be greater than max
     */
    Chance.prototype.natural = function (options) {
        options = initOptions(options, {min: 0, max: MAX_INT});
        if (typeof options.numerals === 'number'){
          testRange(options.numerals < 1, "Chance: Numerals cannot be less than one.");
          options.min = Math.pow(10, options.numerals - 1);
          options.max = Math.pow(10, options.numerals) - 1;
        }
        testRange(options.min < 0, "Chance: Min cannot be less than zero.");
        return this.integer(options);
    };

    /**
     *  Return a random hex number as string
     *
     *  NOTE the max and min are INCLUDED in the range. So:
     *  chance.hex({min: '9', max: 'B'});
     *  would return either '9', 'A' or 'B'.
     *
     *  @param {Object} [options={}] can specify a min and/or max and/or casing
     *  @returns {String} a single random string hex number
     *  @throws {RangeError} min cannot be greater than max
     */
    Chance.prototype.hex = function (options) {
        options = initOptions(options, {min: 0, max: MAX_INT, casing: 'lower'});
        testRange(options.min < 0, "Chance: Min cannot be less than zero.");
		var integer = this.natural({min: options.min, max: options.max});
		if (options.casing === 'upper') {
			return integer.toString(16).toUpperCase();
		}
		return integer.toString(16);
    };

    Chance.prototype.letter = function(options) {
        options = initOptions(options, {casing: 'lower'});
        var pool = "abcdefghijklmnopqrstuvwxyz";
        var letter = this.character({pool: pool});
        if (options.casing === 'upper') {
            letter = letter.toUpperCase();
        }
        return letter;
    };

    /**
     *  Return a random string
     *
     *  @param {Object} [options={}] can specify a length
     *  @returns {String} a string of random length
     *  @throws {RangeError} length cannot be less than zero
     */
    Chance.prototype.string = function (options) {
        options = initOptions(options, { length: this.natural({min: 5, max: 20}) });
        testRange(options.length < 0, "Chance: Length cannot be less than zero.");
        var length = options.length,
            text = this.n(this.character, length, options);

        return text.join("");
    };

    // -- End Basics --

    // -- Helpers --

    Chance.prototype.capitalize = function (word) {
        return word.charAt(0).toUpperCase() + word.substr(1);
    };

    Chance.prototype.mixin = function (obj) {
        for (var func_name in obj) {
            Chance.prototype[func_name] = obj[func_name];
        }
        return this;
    };

    /**
     *  Given a function that generates something random and a number of items to generate,
     *    return an array of items where none repeat.
     *
     *  @param {Function} fn the function that generates something random
     *  @param {Number} num number of terms to generate
     *  @param {Object} options any options to pass on to the generator function
     *  @returns {Array} an array of length `num` with every item generated by `fn` and unique
     *
     *  There can be more parameters after these. All additional parameters are provided to the given function
     */
    Chance.prototype.unique = function(fn, num, options) {
        testRange(
            typeof fn !== "function",
            "Chance: The first argument must be a function."
        );

        var comparator = function(arr, val) { return arr.indexOf(val) !== -1; };

        if (options) {
            comparator = options.comparator || comparator;
        }

        var arr = [], count = 0, result, MAX_DUPLICATES = num * 50, params = slice.call(arguments, 2);

        while (arr.length < num) {
            var clonedParams = JSON.parse(JSON.stringify(params));
            result = fn.apply(this, clonedParams);
            if (!comparator(arr, result)) {
                arr.push(result);
                // reset count when unique found
                count = 0;
            }

            if (++count > MAX_DUPLICATES) {
                throw new RangeError("Chance: num is likely too large for sample set");
            }
        }
        return arr;
    };

    /**
     *  Gives an array of n random terms
     *
     *  @param {Function} fn the function that generates something random
     *  @param {Number} n number of terms to generate
     *  @returns {Array} an array of length `n` with items generated by `fn`
     *
     *  There can be more parameters after these. All additional parameters are provided to the given function
     */
    Chance.prototype.n = function(fn, n) {
        testRange(
            typeof fn !== "function",
            "Chance: The first argument must be a function."
        );

        if (typeof n === 'undefined') {
            n = 1;
        }
        var i = n, arr = [], params = slice.call(arguments, 2);

        // Providing a negative count should result in a noop.
        i = Math.max( 0, i );

        for (null; i--; null) {
            arr.push(fn.apply(this, params));
        }

        return arr;
    };

    // H/T to SO for this one: http://vq.io/OtUrZ5
    Chance.prototype.pad = function (number, width, pad) {
        // Default pad to 0 if none provided
        pad = pad || '0';
        // Convert number to a string
        number = number + '';
        return number.length >= width ? number : new Array(width - number.length + 1).join(pad) + number;
    };

    // DEPRECATED on 2015-10-01
    Chance.prototype.pick = function (arr, count) {
        if (arr.length === 0) {
            throw new RangeError("Chance: Cannot pick() from an empty array");
        }
        if (!count || count === 1) {
            return arr[this.natural({max: arr.length - 1})];
        } else {
            return this.shuffle(arr).slice(0, count);
        }
    };

    // Given an array, returns a single random element
    Chance.prototype.pickone = function (arr) {
        if (arr.length === 0) {
          throw new RangeError("Chance: Cannot pickone() from an empty array");
        }
        return arr[this.natural({max: arr.length - 1})];
    };

    // Given an array, returns a random set with 'count' elements
    Chance.prototype.pickset = function (arr, count) {
        if (count === 0) {
            return [];
        }
        if (arr.length === 0) {
            throw new RangeError("Chance: Cannot pickset() from an empty array");
        }
        if (count < 0) {
            throw new RangeError("Chance: Count must be a positive number");
        }
        if (!count || count === 1) {
            return [ this.pickone(arr) ];
        } else {
            return this.shuffle(arr).slice(0, count);
        }
    };

    Chance.prototype.shuffle = function (arr) {
        var old_array = arr.slice(0),
            new_array = [],
            j = 0,
            length = Number(old_array.length);

        for (var i = 0; i < length; i++) {
            // Pick a random index from the array
            j = this.natural({max: old_array.length - 1});
            // Add it to the new array
            new_array[i] = old_array[j];
            // Remove that element from the original array
            old_array.splice(j, 1);
        }

        return new_array;
    };

    // Returns a single item from an array with relative weighting of odds
    Chance.prototype.weighted = function (arr, weights, trim) {
        if (arr.length !== weights.length) {
            throw new RangeError("Chance: Length of array and weights must match");
        }

        // scan weights array and sum valid entries
        var sum = 0;
        var val;
        for (var weightIndex = 0; weightIndex < weights.length; ++weightIndex) {
            val = weights[weightIndex];
            if (isNaN(val)) {
                throw new RangeError("Chance: All weights must be numbers");
            }

            if (val > 0) {
                sum += val;
            }
        }

        if (sum === 0) {
            throw new RangeError("Chance: No valid entries in array weights");
        }

        // select a value within range
        var selected = this.random() * sum;

        // find array entry corresponding to selected value
        var total = 0;
        var lastGoodIdx = -1;
        var chosenIdx;
        for (weightIndex = 0; weightIndex < weights.length; ++weightIndex) {
            val = weights[weightIndex];
            total += val;
            if (val > 0) {
                if (selected <= total) {
                    chosenIdx = weightIndex;
                    break;
                }
                lastGoodIdx = weightIndex;
            }

            // handle any possible rounding error comparison to ensure something is picked
            if (weightIndex === (weights.length - 1)) {
                chosenIdx = lastGoodIdx;
            }
        }

        var chosen = arr[chosenIdx];
        trim = (typeof trim === 'undefined') ? false : trim;
        if (trim) {
            arr.splice(chosenIdx, 1);
            weights.splice(chosenIdx, 1);
        }

        return chosen;
    };

    // -- End Helpers --

    // -- Text --

    Chance.prototype.paragraph = function (options) {
        options = initOptions(options);

        var sentences = options.sentences || this.natural({min: 3, max: 7}),
            sentence_array = this.n(this.sentence, sentences);

        return sentence_array.join(' ');
    };

    // Could get smarter about this than generating random words and
    // chaining them together. Such as: http://vq.io/1a5ceOh
    Chance.prototype.sentence = function (options) {
        options = initOptions(options);

        var words = options.words || this.natural({min: 12, max: 18}),
            punctuation = options.punctuation,
            text, word_array = this.n(this.word, words);

        text = word_array.join(' ');

        // Capitalize first letter of sentence
        text = this.capitalize(text);

        // Make sure punctuation has a usable value
        if (punctuation !== false && !/^[\.\?;!:]$/.test(punctuation)) {
            punctuation = '.';
        }

        // Add punctuation mark
        if (punctuation) {
            text += punctuation;
        }

        return text;
    };

    Chance.prototype.syllable = function (options) {
        options = initOptions(options);

        var length = options.length || this.natural({min: 2, max: 3}),
            consonants = 'bcdfghjklmnprstvwz', // consonants except hard to speak ones
            vowels = 'aeiou', // vowels
            all = consonants + vowels, // all
            text = '',
            chr;

        // I'm sure there's a more elegant way to do this, but this works
        // decently well.
        for (var i = 0; i < length; i++) {
            if (i === 0) {
                // First character can be anything
                chr = this.character({pool: all});
            } else if (consonants.indexOf(chr) === -1) {
                // Last character was a vowel, now we want a consonant
                chr = this.character({pool: consonants});
            } else {
                // Last character was a consonant, now we want a vowel
                chr = this.character({pool: vowels});
            }

            text += chr;
        }

        if (options.capitalize) {
            text = this.capitalize(text);
        }

        return text;
    };

    Chance.prototype.word = function (options) {
        options = initOptions(options);

        testRange(
            options.syllables && options.length,
            "Chance: Cannot specify both syllables AND length."
        );

        var syllables = options.syllables || this.natural({min: 1, max: 3}),
            text = '';

        if (options.length) {
            // Either bound word by length
            do {
                text += this.syllable();
            } while (text.length < options.length);
            text = text.substring(0, options.length);
        } else {
            // Or by number of syllables
            for (var i = 0; i < syllables; i++) {
                text += this.syllable();
            }
        }

        if (options.capitalize) {
            text = this.capitalize(text);
        }

        return text;
    };

    // -- End Text --

    // -- Person --

    Chance.prototype.age = function (options) {
        options = initOptions(options);
        var ageRange;

        switch (options.type) {
            case 'child':
                ageRange = {min: 0, max: 12};
                break;
            case 'teen':
                ageRange = {min: 13, max: 19};
                break;
            case 'adult':
                ageRange = {min: 18, max: 65};
                break;
            case 'senior':
                ageRange = {min: 65, max: 100};
                break;
            case 'all':
                ageRange = {min: 0, max: 100};
                break;
            default:
                ageRange = {min: 18, max: 65};
                break;
        }

        return this.natural(ageRange);
    };

    Chance.prototype.birthday = function (options) {
        var age = this.age(options);
        var currentYear = new Date().getFullYear();

        if (options && options.type) {
            var min = new Date();
            var max = new Date();
            min.setFullYear(currentYear - age - 1);
            max.setFullYear(currentYear - age);

            options = initOptions(options, {
                min: min,
                max: max
            });
        } else {
            options = initOptions(options, {
                year: currentYear - age
            });
        }

        return this.date(options);
    };

    // CPF; ID to identify taxpayers in Brazil
    Chance.prototype.cpf = function (options) {
        options = initOptions(options, {
            formatted: true
        });

        var n = this.n(this.natural, 9, { max: 9 });
        var d1 = n[8]*2+n[7]*3+n[6]*4+n[5]*5+n[4]*6+n[3]*7+n[2]*8+n[1]*9+n[0]*10;
        d1 = 11 - (d1 % 11);
        if (d1>=10) {
            d1 = 0;
        }
        var d2 = d1*2+n[8]*3+n[7]*4+n[6]*5+n[5]*6+n[4]*7+n[3]*8+n[2]*9+n[1]*10+n[0]*11;
        d2 = 11 - (d2 % 11);
        if (d2>=10) {
            d2 = 0;
        }
        var cpf = ''+n[0]+n[1]+n[2]+'.'+n[3]+n[4]+n[5]+'.'+n[6]+n[7]+n[8]+'-'+d1+d2;
        return options.formatted ? cpf : cpf.replace(/\D/g,'');
    };

    // CNPJ: ID to identify companies in Brazil
    Chance.prototype.cnpj = function (options) {
        options = initOptions(options, {
            formatted: true
        });

        var n = this.n(this.natural, 12, { max: 12 });
        var d1 = n[11]*2+n[10]*3+n[9]*4+n[8]*5+n[7]*6+n[6]*7+n[5]*8+n[4]*9+n[3]*2+n[2]*3+n[1]*4+n[0]*5;
        d1 = 11 - (d1 % 11);
        if (d1<2) {
            d1 = 0;
        }
        var d2 = d1*2+n[11]*3+n[10]*4+n[9]*5+n[8]*6+n[7]*7+n[6]*8+n[5]*9+n[4]*2+n[3]*3+n[2]*4+n[1]*5+n[0]*6;
        d2 = 11 - (d2 % 11);
        if (d2<2) {
            d2 = 0;
        }
        var cnpj = ''+n[0]+n[1]+'.'+n[2]+n[3]+n[4]+'.'+n[5]+n[6]+n[7]+'/'+n[8]+n[9]+n[10]+n[11]+'-'+d1+d2;
        return options.formatted ? cnpj : cnpj.replace(/\D/g,'');
    };

    Chance.prototype.first = function (options) {
        options = initOptions(options, {gender: this.gender(), nationality: 'en'});
        return this.pick(this.get("firstNames")[options.gender.toLowerCase()][options.nationality.toLowerCase()]);
    };

    Chance.prototype.profession = function (options) {
        options = initOptions(options);
        if(options.rank){
            return this.pick(['Apprentice ', 'Junior ', 'Senior ', 'Lead ']) + this.pick(this.get("profession"));
        } else{
            return this.pick(this.get("profession"));
        }
    };

    Chance.prototype.company = function (){
        return this.pick(this.get("company"));
    };

    Chance.prototype.gender = function (options) {
        options = initOptions(options, {extraGenders: []});
        return this.pick(['Male', 'Female'].concat(options.extraGenders));
    };

    Chance.prototype.last = function (options) {
        options = initOptions(options, {nationality: 'en'});
        return this.pick(this.get("lastNames")[options.nationality.toLowerCase()]);
    };

    Chance.prototype.israelId=function(){
        var x=this.string({pool: '0123456789',length:8});
        var y=0;
        for (var i=0;i<x.length;i++){
            var thisDigit=  x[i] *  (i/2===parseInt(i/2) ? 1 : 2);
            thisDigit=this.pad(thisDigit,2).toString();
            thisDigit=parseInt(thisDigit[0]) + parseInt(thisDigit[1]);
            y=y+thisDigit;
        }
        x=x+(10-parseInt(y.toString().slice(-1))).toString().slice(-1);
        return x;
    };

    Chance.prototype.mrz = function (options) {
        var checkDigit = function (input) {
            var alpha = "<ABCDEFGHIJKLMNOPQRSTUVWXYXZ".split(''),
                multipliers = [ 7, 3, 1 ],
                runningTotal = 0;

            if (typeof input !== 'string') {
                input = input.toString();
            }

            input.split('').forEach(function(character, idx) {
                var pos = alpha.indexOf(character);

                if(pos !== -1) {
                    character = pos === 0 ? 0 : pos + 9;
                } else {
                    character = parseInt(character, 10);
                }
                character *= multipliers[idx % multipliers.length];
                runningTotal += character;
            });
            return runningTotal % 10;
        };
        var generate = function (opts) {
            var pad = function (length) {
                return new Array(length + 1).join('<');
            };
            var number = [ 'P<',
                           opts.issuer,
                           opts.last.toUpperCase(),
                           '<<',
                           opts.first.toUpperCase(),
                           pad(39 - (opts.last.length + opts.first.length + 2)),
                           opts.passportNumber,
                           checkDigit(opts.passportNumber),
                           opts.nationality,
                           opts.dob,
                           checkDigit(opts.dob),
                           opts.gender,
                           opts.expiry,
                           checkDigit(opts.expiry),
                           pad(14),
                           checkDigit(pad(14)) ].join('');

            return number +
                (checkDigit(number.substr(44, 10) +
                            number.substr(57, 7) +
                            number.substr(65, 7)));
        };

        var that = this;

        options = initOptions(options, {
            first: this.first(),
            last: this.last(),
            passportNumber: this.integer({min: 100000000, max: 999999999}),
            dob: (function () {
                var date = that.birthday({type: 'adult'});
                return [date.getFullYear().toString().substr(2),
                        that.pad(date.getMonth() + 1, 2),
                        that.pad(date.getDate(), 2)].join('');
            }()),
            expiry: (function () {
                var date = new Date();
                return [(date.getFullYear() + 5).toString().substr(2),
                        that.pad(date.getMonth() + 1, 2),
                        that.pad(date.getDate(), 2)].join('');
            }()),
            gender: this.gender() === 'Female' ? 'F': 'M',
            issuer: 'GBR',
            nationality: 'GBR'
        });
        return generate (options);
    };

    Chance.prototype.name = function (options) {
        options = initOptions(options);

        var first = this.first(options),
            last = this.last(options),
            name;

        if (options.middle) {
            name = first + ' ' + this.first(options) + ' ' + last;
        } else if (options.middle_initial) {
            name = first + ' ' + this.character({alpha: true, casing: 'upper'}) + '. ' + last;
        } else {
            name = first + ' ' + last;
        }

        if (options.prefix) {
            name = this.prefix(options) + ' ' + name;
        }

        if (options.suffix) {
            name = name + ' ' + this.suffix(options);
        }

        return name;
    };

    // Return the list of available name prefixes based on supplied gender.
    // @todo introduce internationalization
    Chance.prototype.name_prefixes = function (gender) {
        gender = gender || "all";
        gender = gender.toLowerCase();

        var prefixes = [
            { name: 'Doctor', abbreviation: 'Dr.' }
        ];

        if (gender === "male" || gender === "all") {
            prefixes.push({ name: 'Mister', abbreviation: 'Mr.' });
        }

        if (gender === "female" || gender === "all") {
            prefixes.push({ name: 'Miss', abbreviation: 'Miss' });
            prefixes.push({ name: 'Misses', abbreviation: 'Mrs.' });
        }

        return prefixes;
    };

    // Alias for name_prefix
    Chance.prototype.prefix = function (options) {
        return this.name_prefix(options);
    };

    Chance.prototype.name_prefix = function (options) {
        options = initOptions(options, { gender: "all" });
        return options.full ?
            this.pick(this.name_prefixes(options.gender)).name :
            this.pick(this.name_prefixes(options.gender)).abbreviation;
    };
    //Hungarian ID number
    Chance.prototype.HIDN= function(){
     //Hungarian ID nuber structure: XXXXXXYY (X=number,Y=Capital Latin letter)
      var idn_pool="0123456789";
      var idn_chrs="ABCDEFGHIJKLMNOPQRSTUVWXYXZ";
      var idn="";
        idn+=this.string({pool:idn_pool,length:6});
        idn+=this.string({pool:idn_chrs,length:2});
        return idn;
    };


    Chance.prototype.ssn = function (options) {
        options = initOptions(options, {ssnFour: false, dashes: true});
        var ssn_pool = "1234567890",
            ssn,
            dash = options.dashes ? '-' : '';

        if(!options.ssnFour) {
            ssn = this.string({pool: ssn_pool, length: 3}) + dash +
            this.string({pool: ssn_pool, length: 2}) + dash +
            this.string({pool: ssn_pool, length: 4});
        } else {
            ssn = this.string({pool: ssn_pool, length: 4});
        }
        return ssn;
    };

    // Return the list of available name suffixes
    // @todo introduce internationalization
    Chance.prototype.name_suffixes = function () {
        var suffixes = [
            { name: 'Doctor of Osteopathic Medicine', abbreviation: 'D.O.' },
            { name: 'Doctor of Philosophy', abbreviation: 'Ph.D.' },
            { name: 'Esquire', abbreviation: 'Esq.' },
            { name: 'Junior', abbreviation: 'Jr.' },
            { name: 'Juris Doctor', abbreviation: 'J.D.' },
            { name: 'Master of Arts', abbreviation: 'M.A.' },
            { name: 'Master of Business Administration', abbreviation: 'M.B.A.' },
            { name: 'Master of Science', abbreviation: 'M.S.' },
            { name: 'Medical Doctor', abbreviation: 'M.D.' },
            { name: 'Senior', abbreviation: 'Sr.' },
            { name: 'The Third', abbreviation: 'III' },
            { name: 'The Fourth', abbreviation: 'IV' },
            { name: 'Bachelor of Engineering', abbreviation: 'B.E' },
            { name: 'Bachelor of Technology', abbreviation: 'B.TECH' }
        ];
        return suffixes;
    };

    // Alias for name_suffix
    Chance.prototype.suffix = function (options) {
        return this.name_suffix(options);
    };

    Chance.prototype.name_suffix = function (options) {
        options = initOptions(options);
        return options.full ?
            this.pick(this.name_suffixes()).name :
            this.pick(this.name_suffixes()).abbreviation;
    };

    Chance.prototype.nationalities = function () {
        return this.get("nationalities");
    };

    // Generate random nationality based on json list
    Chance.prototype.nationality = function () {
        var nationality = this.pick(this.nationalities());
        return nationality.name;
    };

    // -- End Person --

    // -- Mobile --
    // Android GCM Registration ID
    Chance.prototype.android_id = function () {
        return "APA91" + this.string({ pool: "0123456789abcefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_", length: 178 });
    };

    // Apple Push Token
    Chance.prototype.apple_token = function () {
        return this.string({ pool: "abcdef1234567890", length: 64 });
    };

    // Windows Phone 8 ANID2
    Chance.prototype.wp8_anid2 = function () {
        return base64( this.hash( { length : 32 } ) );
    };

    // Windows Phone 7 ANID
    Chance.prototype.wp7_anid = function () {
        return 'A=' + this.guid().replace(/-/g, '').toUpperCase() + '&E=' + this.hash({ length:3 }) + '&W=' + this.integer({ min:0, max:9 });
    };

    // BlackBerry Device PIN
    Chance.prototype.bb_pin = function () {
        return this.hash({ length: 8 });
    };

    // -- End Mobile --

    // -- Web --
    Chance.prototype.avatar = function (options) {
        var url = null;
        var URL_BASE = '//www.gravatar.com/avatar/';
        var PROTOCOLS = {
            http: 'http',
            https: 'https'
        };
        var FILE_TYPES = {
            bmp: 'bmp',
            gif: 'gif',
            jpg: 'jpg',
            png: 'png'
        };
        var FALLBACKS = {
            '404': '404', // Return 404 if not found
            mm: 'mm', // Mystery man
            identicon: 'identicon', // Geometric pattern based on hash
            monsterid: 'monsterid', // A generated monster icon
            wavatar: 'wavatar', // A generated face
            retro: 'retro', // 8-bit icon
            blank: 'blank' // A transparent png
        };
        var RATINGS = {
            g: 'g',
            pg: 'pg',
            r: 'r',
            x: 'x'
        };
        var opts = {
            protocol: null,
            email: null,
            fileExtension: null,
            size: null,
            fallback: null,
            rating: null
        };

        if (!options) {
            // Set to a random email
            opts.email = this.email();
            options = {};
        }
        else if (typeof options === 'string') {
            opts.email = options;
            options = {};
        }
        else if (typeof options !== 'object') {
            return null;
        }
        else if (options.constructor === 'Array') {
            return null;
        }

        opts = initOptions(options, opts);

        if (!opts.email) {
            // Set to a random email
            opts.email = this.email();
        }

        // Safe checking for params
        opts.protocol = PROTOCOLS[opts.protocol] ? opts.protocol + ':' : '';
        opts.size = parseInt(opts.size, 0) ? opts.size : '';
        opts.rating = RATINGS[opts.rating] ? opts.rating : '';
        opts.fallback = FALLBACKS[opts.fallback] ? opts.fallback : '';
        opts.fileExtension = FILE_TYPES[opts.fileExtension] ? opts.fileExtension : '';

        url =
            opts.protocol +
            URL_BASE +
            this.bimd5.md5(opts.email) +
            (opts.fileExtension ? '.' + opts.fileExtension : '') +
            (opts.size || opts.rating || opts.fallback ? '?' : '') +
            (opts.size ? '&s=' + opts.size.toString() : '') +
            (opts.rating ? '&r=' + opts.rating : '') +
            (opts.fallback ? '&d=' + opts.fallback : '')
            ;

        return url;
    };

    /**
     * #Description:
     * ===============================================
     * Generate random color value base on color type:
     * -> hex
     * -> rgb
     * -> rgba
     * -> 0x
     * -> named color
     *
     * #Examples:
     * ===============================================
     * * Geerate random hex color
     * chance.color() => '#79c157' / 'rgb(110,52,164)' / '0x67ae0b' / '#e2e2e2' / '#29CFA7'
     *
     * * Generate Hex based color value
     * chance.color({format: 'hex'})    => '#d67118'
     *
     * * Generate simple rgb value
     * chance.color({format: 'rgb'})    => 'rgb(110,52,164)'
     *
     * * Generate Ox based color value
     * chance.color({format: '0x'})     => '0x67ae0b'
     *
     * * Generate graiscale based value
     * chance.color({grayscale: true})  => '#e2e2e2'
     *
     * * Return valide color name
     * chance.color({format: 'name'})   => 'red'
     *
     * * Make color uppercase
     * chance.color({casing: 'upper'})  => '#29CFA7'
     *
     * * Min Max values for RGBA
     * var light_red = chance.color({format: 'hex', min_red: 200, max_red: 255, max_green: 0, max_blue: 0, min_alpha: .2, max_alpha: .3});
     *
     * @param  [object] options
     * @return [string] color value
     */
    Chance.prototype.color = function (options) {
        function gray(value, delimiter) {
            return [value, value, value].join(delimiter || '');
        }

        function rgb(hasAlpha) {
            var rgbValue     = (hasAlpha)    ? 'rgba' : 'rgb';
            var alphaChannel = (hasAlpha)    ? (',' + this.floating({min:min_alpha, max:max_alpha})) : "";
            var colorValue   = (isGrayscale) ? (gray(this.natural({min: min_rgb, max: max_rgb}), ',')) : (this.natural({min: min_green, max: max_green}) + ',' + this.natural({min: min_blue, max: max_blue}) + ',' + this.natural({max: 255}));
            return rgbValue + '(' + colorValue + alphaChannel + ')';
        }

        function hex(start, end, withHash) {
            var symbol = (withHash) ? "#" : "";
            var hexstring = "";

            if (isGrayscale) {
                hexstring = gray(this.pad(this.hex({min: min_rgb, max: max_rgb}), 2));
                if (options.format === "shorthex") {
                    hexstring = gray(this.hex({min: 0, max: 15}));
                }
            }
            else {
                if (options.format === "shorthex") {
                    hexstring = this.pad(this.hex({min: Math.floor(min_red / 16), max: Math.floor(max_red / 16)}), 1) + this.pad(this.hex({min: Math.floor(min_green / 16), max: Math.floor(max_green / 16)}), 1) + this.pad(this.hex({min: Math.floor(min_blue / 16), max: Math.floor(max_blue / 16)}), 1);
                }
                else if (min_red !== undefined || max_red !== undefined || min_green !== undefined || max_green !== undefined || min_blue !== undefined || max_blue !== undefined) {
                    hexstring = this.pad(this.hex({min: min_red, max: max_red}), 2) + this.pad(this.hex({min: min_green, max: max_green}), 2) + this.pad(this.hex({min: min_blue, max: max_blue}), 2);
                }
                else {
                    hexstring = this.pad(this.hex({min: min_rgb, max: max_rgb}), 2) + this.pad(this.hex({min: min_rgb, max: max_rgb}), 2) + this.pad(this.hex({min: min_rgb, max: max_rgb}), 2);
                }
            }

            return symbol + hexstring;
        }

        options = initOptions(options, {
            format: this.pick(['hex', 'shorthex', 'rgb', 'rgba', '0x', 'name']),
            grayscale: false,
            casing: 'lower',
            min: 0,
            max: 255,
            min_red: undefined,
            max_red: undefined,
            min_green: undefined,
            max_green: undefined,
            min_blue: undefined,
            max_blue: undefined,
            min_alpha: 0,
            max_alpha: 1
        });

        var isGrayscale = options.grayscale;
        var min_rgb = options.min;
        var max_rgb = options.max;
        var min_red = options.min_red;
        var max_red = options.max_red;
        var min_green = options.min_green;
        var max_green = options.max_green;
        var min_blue = options.min_blue;
        var max_blue = options.max_blue;
        var min_alpha = options.min_alpha;
        var max_alpha = options.max_alpha;
        if (options.min_red === undefined) { min_red = min_rgb; }
        if (options.max_red === undefined) { max_red = max_rgb; }
        if (options.min_green === undefined) { min_green = min_rgb; }
        if (options.max_green === undefined) { max_green = max_rgb; }
        if (options.min_blue === undefined) { min_blue = min_rgb; }
        if (options.max_blue === undefined) { max_blue = max_rgb; }
        if (options.min_alpha === undefined) { min_alpha = 0; }
        if (options.max_alpha === undefined) { max_alpha = 1; }
        if (isGrayscale && min_rgb === 0 && max_rgb === 255 && min_red !== undefined && max_red !== undefined) {
            min_rgb = ((min_red + min_green + min_blue) / 3);
            max_rgb = ((max_red + max_green + max_blue) / 3);
        }
        var colorValue;

        if (options.format === 'hex') {
            colorValue = hex.call(this, 2, 6, true);
        }
        else if (options.format === 'shorthex') {
            colorValue = hex.call(this, 1, 3, true);
        }
        else if (options.format === 'rgb') {
            colorValue = rgb.call(this, false);
        }
        else if (options.format === 'rgba') {
            colorValue = rgb.call(this, true);
        }
        else if (options.format === '0x') {
            colorValue = '0x' + hex.call(this, 2, 6);
        }
        else if(options.format === 'name') {
            return this.pick(this.get("colorNames"));
        }
        else {
            throw new RangeError('Invalid format provided. Please provide one of "hex", "shorthex", "rgb", "rgba", "0x" or "name".');
        }

        if (options.casing === 'upper' ) {
            colorValue = colorValue.toUpperCase();
        }

        return colorValue;
    };

    Chance.prototype.domain = function (options) {
        options = initOptions(options);
        return this.word() + '.' + (options.tld || this.tld());
    };

    Chance.prototype.email = function (options) {
        options = initOptions(options);
        return this.word({length: options.length}) + '@' + (options.domain || this.domain());
    };

    /**
     * #Description:
     * ===============================================
     * Generate a random Facebook id, aka fbid.
     *
     * NOTE: At the moment (Sep 2017), Facebook ids are
     * "numeric strings" of length 16.
     * However, Facebook Graph API documentation states that
     * "it is extremely likely to change over time".
     * @see https://developers.facebook.com/docs/graph-api/overview/
     *
     * #Examples:
     * ===============================================
     * chance.fbid() => '1000035231661304'
     *
     * @return [string] facebook id
     */
    Chance.prototype.fbid = function () {
        return '10000' + this.string({pool: "1234567890", length: 11});
    };

    Chance.prototype.google_analytics = function () {
        var account = this.pad(this.natural({max: 999999}), 6);
        var property = this.pad(this.natural({max: 99}), 2);

        return 'UA-' + account + '-' + property;
    };

    Chance.prototype.hashtag = function () {
        return '#' + this.word();
    };

    Chance.prototype.ip = function () {
        // Todo: This could return some reserved IPs. See http://vq.io/137dgYy
        // this should probably be updated to account for that rare as it may be
        return this.natural({min: 1, max: 254}) + '.' +
               this.natural({max: 255}) + '.' +
               this.natural({max: 255}) + '.' +
               this.natural({min: 1, max: 254});
    };

    Chance.prototype.ipv6 = function () {
        var ip_addr = this.n(this.hash, 8, {length: 4});

        return ip_addr.join(":");
    };

    Chance.prototype.klout = function () {
        return this.natural({min: 1, max: 99});
    };

    Chance.prototype.semver = function (options) {
        options = initOptions(options, { include_prerelease: true });

        var range = this.pickone(["^", "~", "<", ">", "<=", ">=", "="]);
        if (options.range) {
            range = options.range;
        }

        var prerelease = "";
        if (options.include_prerelease) {
            prerelease = this.weighted(["", "-dev", "-beta", "-alpha"], [50, 10, 5, 1]);
        }
        return range + this.rpg('3d10').join('.') + prerelease;
    };

    Chance.prototype.tlds = function () {
        return ['com', 'org', 'edu', 'gov', 'co.uk', 'net', 'io', 'ac', 'ad', 'ae', 'af', 'ag', 'ai', 'al', 'am', 'an', 'ao', 'aq', 'ar', 'as', 'at', 'au', 'aw', 'ax', 'az', 'ba', 'bb', 'bd', 'be', 'bf', 'bg', 'bh', 'bi', 'bj', 'bm', 'bn', 'bo', 'bq', 'br', 'bs', 'bt', 'bv', 'bw', 'by', 'bz', 'ca', 'cc', 'cd', 'cf', 'cg', 'ch', 'ci', 'ck', 'cl', 'cm', 'cn', 'co', 'cr', 'cu', 'cv', 'cw', 'cx', 'cy', 'cz', 'de', 'dj', 'dk', 'dm', 'do', 'dz', 'ec', 'ee', 'eg', 'eh', 'er', 'es', 'et', 'eu', 'fi', 'fj', 'fk', 'fm', 'fo', 'fr', 'ga', 'gb', 'gd', 'ge', 'gf', 'gg', 'gh', 'gi', 'gl', 'gm', 'gn', 'gp', 'gq', 'gr', 'gs', 'gt', 'gu', 'gw', 'gy', 'hk', 'hm', 'hn', 'hr', 'ht', 'hu', 'id', 'ie', 'il', 'im', 'in', 'io', 'iq', 'ir', 'is', 'it', 'je', 'jm', 'jo', 'jp', 'ke', 'kg', 'kh', 'ki', 'km', 'kn', 'kp', 'kr', 'kw', 'ky', 'kz', 'la', 'lb', 'lc', 'li', 'lk', 'lr', 'ls', 'lt', 'lu', 'lv', 'ly', 'ma', 'mc', 'md', 'me', 'mg', 'mh', 'mk', 'ml', 'mm', 'mn', 'mo', 'mp', 'mq', 'mr', 'ms', 'mt', 'mu', 'mv', 'mw', 'mx', 'my', 'mz', 'na', 'nc', 'ne', 'nf', 'ng', 'ni', 'nl', 'no', 'np', 'nr', 'nu', 'nz', 'om', 'pa', 'pe', 'pf', 'pg', 'ph', 'pk', 'pl', 'pm', 'pn', 'pr', 'ps', 'pt', 'pw', 'py', 'qa', 're', 'ro', 'rs', 'ru', 'rw', 'sa', 'sb', 'sc', 'sd', 'se', 'sg', 'sh', 'si', 'sj', 'sk', 'sl', 'sm', 'sn', 'so', 'sr', 'ss', 'st', 'su', 'sv', 'sx', 'sy', 'sz', 'tc', 'td', 'tf', 'tg', 'th', 'tj', 'tk', 'tl', 'tm', 'tn', 'to', 'tp', 'tr', 'tt', 'tv', 'tw', 'tz', 'ua', 'ug', 'uk', 'us', 'uy', 'uz', 'va', 'vc', 've', 'vg', 'vi', 'vn', 'vu', 'wf', 'ws', 'ye', 'yt', 'za', 'zm', 'zw'];
    };

    Chance.prototype.tld = function () {
        return this.pick(this.tlds());
    };

    Chance.prototype.twitter = function () {
        return '@' + this.word();
    };

    Chance.prototype.url = function (options) {
        options = initOptions(options, { protocol: "http", domain: this.domain(options), domain_prefix: "", path: this.word(), extensions: []});

        var extension = options.extensions.length > 0 ? "." + this.pick(options.extensions) : "";
        var domain = options.domain_prefix ? options.domain_prefix + "." + options.domain : options.domain;

        return options.protocol + "://" + domain + "/" + options.path + extension;
    };

    Chance.prototype.port = function() {
        return this.integer({min: 0, max: 65535});
    };

    Chance.prototype.locale = function (options) {
        options = initOptions(options);
        if (options.region){
          return this.pick(this.get("locale_regions"));
        } else {
          return this.pick(this.get("locale_languages"));
        }
    };

    Chance.prototype.locales = function (options) {
      options = initOptions(options);
      if (options.region){
        return this.get("locale_regions");
      } else {
        return this.get("locale_languages");
      }
    };

    // -- End Web --

    // -- Location --

    Chance.prototype.address = function (options) {
        options = initOptions(options);
        return this.natural({min: 5, max: 2000}) + ' ' + this.street(options);
    };

    Chance.prototype.altitude = function (options) {
        options = initOptions(options, {fixed: 5, min: 0, max: 8848});
        return this.floating({
            min: options.min,
            max: options.max,
            fixed: options.fixed
        });
    };

    Chance.prototype.areacode = function (options) {
        options = initOptions(options, {parens : true});
        // Don't want area codes to start with 1, or have a 9 as the second digit
        var areacode = this.natural({min: 2, max: 9}).toString() +
                this.natural({min: 0, max: 8}).toString() +
                this.natural({min: 0, max: 9}).toString();

        return options.parens ? '(' + areacode + ')' : areacode;
    };

    Chance.prototype.city = function () {
        return this.capitalize(this.word({syllables: 3}));
    };

    Chance.prototype.coordinates = function (options) {
        return this.latitude(options) + ', ' + this.longitude(options);
    };

    Chance.prototype.countries = function () {
        return this.get("countries");
    };

    Chance.prototype.country = function (options) {
        options = initOptions(options);
        var country = this.pick(this.countries());
        return options.full ? country.name : country.abbreviation;
    };

    Chance.prototype.depth = function (options) {
        options = initOptions(options, {fixed: 5, min: -10994, max: 0});
        return this.floating({
            min: options.min,
            max: options.max,
            fixed: options.fixed
        });
    };

    Chance.prototype.geohash = function (options) {
        options = initOptions(options, { length: 7 });
        return this.string({ length: options.length, pool: '0123456789bcdefghjkmnpqrstuvwxyz' });
    };

    Chance.prototype.geojson = function (options) {
        return this.latitude(options) + ', ' + this.longitude(options) + ', ' + this.altitude(options);
    };

    Chance.prototype.latitude = function (options) {
        options = initOptions(options, {fixed: 5, min: -90, max: 90});
        return this.floating({min: options.min, max: options.max, fixed: options.fixed});
    };

    Chance.prototype.longitude = function (options) {
        options = initOptions(options, {fixed: 5, min: -180, max: 180});
        return this.floating({min: options.min, max: options.max, fixed: options.fixed});
    };

    Chance.prototype.phone = function (options) {
        var self = this,
            numPick,
            ukNum = function (parts) {
                var section = [];
                //fills the section part of the phone number with random numbers.
                parts.sections.forEach(function(n) {
                    section.push(self.string({ pool: '0123456789', length: n}));
                });
                return parts.area + section.join(' ');
            };
        options = initOptions(options, {
            formatted: true,
            country: 'us',
            mobile: false
        });
        if (!options.formatted) {
            options.parens = false;
        }
        var phone;
        switch (options.country) {
            case 'fr':
                if (!options.mobile) {
                    numPick = this.pick([
                        // Valid zone and département codes.
                        '01' + this.pick(['30', '34', '39', '40', '41', '42', '43', '44', '45', '46', '47', '48', '49', '53', '55', '56', '58', '60', '64', '69', '70', '72', '73', '74', '75', '76', '77', '78', '79', '80', '81', '82', '83']) + self.string({ pool: '0123456789', length: 6}),
                        '02' + this.pick(['14', '18', '22', '23', '28', '29', '30', '31', '32', '33', '34', '35', '36', '37', '38', '40', '41', '43', '44', '45', '46', '47', '48', '49', '50', '51', '52', '53', '54', '56', '57', '61', '62', '69', '72', '76', '77', '78', '85', '90', '96', '97', '98', '99']) + self.string({ pool: '0123456789', length: 6}),
                        '03' + this.pick(['10', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '39', '44', '45', '51', '52', '54', '55', '57', '58', '59', '60', '61', '62', '63', '64', '65', '66', '67', '68', '69', '70', '71', '72', '73', '80', '81', '82', '83', '84', '85', '86', '87', '88', '89', '90']) + self.string({ pool: '0123456789', length: 6}),
                        '04' + this.pick(['11', '13', '15', '20', '22', '26', '27', '30', '32', '34', '37', '42', '43', '44', '50', '56', '57', '63', '66', '67', '68', '69', '70', '71', '72', '73', '74', '75', '76', '77', '78', '79', '80', '81', '82', '83', '84', '85', '86', '88', '89', '90', '91', '92', '93', '94', '95', '97', '98']) + self.string({ pool: '0123456789', length: 6}),
                        '05' + this.pick(['08', '16', '17', '19', '24', '31', '32', '33', '34', '35', '40', '45', '46', '47', '49', '53', '55', '56', '57', '58', '59', '61', '62', '63', '64', '65', '67', '79', '81', '82', '86', '87', '90', '94']) + self.string({ pool: '0123456789', length: 6}),
                        '09' + self.string({ pool: '0123456789', length: 8}),
                    ]);
                    phone = options.formatted ? numPick.match(/../g).join(' ') : numPick;
                } else {
                    numPick = this.pick(['06', '07']) + self.string({ pool: '0123456789', length: 8});
                    phone = options.formatted ? numPick.match(/../g).join(' ') : numPick;
                }
                break;
            case 'uk':
                if (!options.mobile) {
                    numPick = this.pick([
                        //valid area codes of major cities/counties followed by random numbers in required format.

                        { area: '01' + this.character({ pool: '234569' }) + '1 ', sections: [3,4] },
                        { area: '020 ' + this.character({ pool: '378' }), sections: [3,4] },
                        { area: '023 ' + this.character({ pool: '89' }), sections: [3,4] },
                        { area: '024 7', sections: [3,4] },
                        { area: '028 ' + this.pick(['25','28','37','71','82','90','92','95']), sections: [2,4] },
                        { area: '012' + this.pick(['04','08','54','76','97','98']) + ' ', sections: [6] },
                        { area: '013' + this.pick(['63','64','84','86']) + ' ', sections: [6] },
                        { area: '014' + this.pick(['04','20','60','61','80','88']) + ' ', sections: [6] },
                        { area: '015' + this.pick(['24','27','62','66']) + ' ', sections: [6] },
                        { area: '016' + this.pick(['06','29','35','47','59','95']) + ' ', sections: [6] },
                        { area: '017' + this.pick(['26','44','50','68']) + ' ', sections: [6] },
                        { area: '018' + this.pick(['27','37','84','97']) + ' ', sections: [6] },
                        { area: '019' + this.pick(['00','05','35','46','49','63','95']) + ' ', sections: [6] }
                    ]);
                    phone = options.formatted ? ukNum(numPick) : ukNum(numPick).replace(' ', '', 'g');
                } else {
                    numPick = this.pick([
                        { area: '07' + this.pick(['4','5','7','8','9']), sections: [2,6] },
                        { area: '07624 ', sections: [6] }
                    ]);
                    phone = options.formatted ? ukNum(numPick) : ukNum(numPick).replace(' ', '');
                }
                break;
            case 'za':
                if (!options.mobile) {
                    numPick = this.pick([
                       '01' + this.pick(['0', '1', '2', '3', '4', '5', '6', '7', '8']) + self.string({ pool: '0123456789', length: 7}),
                       '02' + this.pick(['1', '2', '3', '4', '7', '8']) + self.string({ pool: '0123456789', length: 7}),
                       '03' + this.pick(['1', '2', '3', '5', '6', '9']) + self.string({ pool: '0123456789', length: 7}),
                       '04' + this.pick(['1', '2', '3', '4', '5','6','7', '8','9']) + self.string({ pool: '0123456789', length: 7}),
                       '05' + this.pick(['1', '3', '4', '6', '7', '8']) + self.string({ pool: '0123456789', length: 7}),
                    ]);
                    phone = options.formatted || numPick;
                } else {
                    numPick = this.pick([
                        '060' + this.pick(['3','4','5','6','7','8','9']) + self.string({ pool: '0123456789', length: 6}),
                        '061' + this.pick(['0','1','2','3','4','5','8']) + self.string({ pool: '0123456789', length: 6}),
                        '06'  + self.string({ pool: '0123456789', length: 7}),
                        '071' + this.pick(['0','1','2','3','4','5','6','7','8','9']) + self.string({ pool: '0123456789', length: 6}),
                        '07'  + this.pick(['2','3','4','6','7','8','9']) + self.string({ pool: '0123456789', length: 7}),
                        '08'  + this.pick(['0','1','2','3','4','5']) + self.string({ pool: '0123456789', length: 7}),
                    ]);
                    phone = options.formatted || numPick;
                }

                break;

            case 'us':
                var areacode = this.areacode(options).toString();
                var exchange = this.natural({ min: 2, max: 9 }).toString() +
                    this.natural({ min: 0, max: 9 }).toString() +
                    this.natural({ min: 0, max: 9 }).toString();
                var subscriber = this.natural({ min: 1000, max: 9999 }).toString(); // this could be random [0-9]{4}
                phone = options.formatted ? areacode + ' ' + exchange + '-' + subscriber : areacode + exchange + subscriber;
        }
        return phone;
    };

    Chance.prototype.postal = function () {
        // Postal District
        var pd = this.character({pool: "XVTSRPNKLMHJGECBA"});
        // Forward Sortation Area (FSA)
        var fsa = pd + this.natural({max: 9}) + this.character({alpha: true, casing: "upper"});
        // Local Delivery Unut (LDU)
        var ldu = this.natural({max: 9}) + this.character({alpha: true, casing: "upper"}) + this.natural({max: 9});

        return fsa + " " + ldu;
    };

    Chance.prototype.counties = function (options) {
        options = initOptions(options, { country: 'uk' });
        return this.get("counties")[options.country.toLowerCase()];
    };

    Chance.prototype.county = function (options) {
        return this.pick(this.counties(options)).name;
    };

    Chance.prototype.provinces = function (options) {
        options = initOptions(options, { country: 'ca' });
        return this.get("provinces")[options.country.toLowerCase()];
    };

    Chance.prototype.province = function (options) {
        return (options && options.full) ?
            this.pick(this.provinces(options)).name :
            this.pick(this.provinces(options)).abbreviation;
    };

    Chance.prototype.state = function (options) {
        return (options && options.full) ?
            this.pick(this.states(options)).name :
            this.pick(this.states(options)).abbreviation;
    };

    Chance.prototype.states = function (options) {
        options = initOptions(options, { country: 'us', us_states_and_dc: true } );

        var states;

        switch (options.country.toLowerCase()) {
            case 'us':
                var us_states_and_dc = this.get("us_states_and_dc"),
                    territories = this.get("territories"),
                    armed_forces = this.get("armed_forces");

                states = [];

                if (options.us_states_and_dc) {
                    states = states.concat(us_states_and_dc);
                }
                if (options.territories) {
                    states = states.concat(territories);
                }
                if (options.armed_forces) {
                    states = states.concat(armed_forces);
                }
                break;
            case 'it':
                states = this.get("country_regions")[options.country.toLowerCase()];
                break;
            case 'uk':
                states = this.get("counties")[options.country.toLowerCase()];
                break;
        }

        return states;
    };

    Chance.prototype.street = function (options) {
        options = initOptions(options, { country: 'us', syllables: 2 });
        var     street;

        switch (options.country.toLowerCase()) {
            case 'us':
                street = this.word({ syllables: options.syllables });
                street = this.capitalize(street);
                street += ' ';
                street += options.short_suffix ?
                    this.street_suffix(options).abbreviation :
                    this.street_suffix(options).name;
                break;
            case 'it':
                street = this.word({ syllables: options.syllables });
                street = this.capitalize(street);
                street = (options.short_suffix ?
                    this.street_suffix(options).abbreviation :
                    this.street_suffix(options).name) + " " + street;
                break;
        }
        return street;
    };

    Chance.prototype.street_suffix = function (options) {
        options = initOptions(options, { country: 'us' });
        return this.pick(this.street_suffixes(options));
    };

    Chance.prototype.street_suffixes = function (options) {
        options = initOptions(options, { country: 'us' });
        // These are the most common suffixes.
        return this.get("street_suffixes")[options.country.toLowerCase()];
    };

    // Note: only returning US zip codes, internationalization will be a whole
    // other beast to tackle at some point.
    Chance.prototype.zip = function (options) {
        var zip = this.n(this.natural, 5, {max: 9});

        if (options && options.plusfour === true) {
            zip.push('-');
            zip = zip.concat(this.n(this.natural, 4, {max: 9}));
        }

        return zip.join("");
    };

    // -- End Location --

    // -- Time

    Chance.prototype.ampm = function () {
        return this.bool() ? 'am' : 'pm';
    };

    Chance.prototype.date = function (options) {
        var date_string, date;

        // If interval is specified we ignore preset
        if(options && (options.min || options.max)) {
            options = initOptions(options, {
                american: true,
                string: false
            });
            var min = typeof options.min !== "undefined" ? options.min.getTime() : 1;
            // 100,000,000 days measured relative to midnight at the beginning of 01 January, 1970 UTC. http://es5.github.io/#x15.9.1.1
            var max = typeof options.max !== "undefined" ? options.max.getTime() : 8640000000000000;

            date = new Date(this.integer({min: min, max: max}));
        } else {
            var m = this.month({raw: true});
            var daysInMonth = m.days;

            if(options && options.month) {
                // Mod 12 to allow months outside range of 0-11 (not encouraged, but also not prevented).
                daysInMonth = this.get('months')[((options.month % 12) + 12) % 12].days;
            }

            options = initOptions(options, {
                year: parseInt(this.year(), 10),
                // Necessary to subtract 1 because Date() 0-indexes month but not day or year
                // for some reason.
                month: m.numeric - 1,
                day: this.natural({min: 1, max: daysInMonth}),
                hour: this.hour({twentyfour: true}),
                minute: this.minute(),
                second: this.second(),
                millisecond: this.millisecond(),
                american: true,
                string: false
            });

            date = new Date(options.year, options.month, options.day, options.hour, options.minute, options.second, options.millisecond);
        }

        if (options.american) {
            // Adding 1 to the month is necessary because Date() 0-indexes
            // months but not day for some odd reason.
            date_string = (date.getMonth() + 1) + '/' + date.getDate() + '/' + date.getFullYear();
        } else {
            date_string = date.getDate() + '/' + (date.getMonth() + 1) + '/' + date.getFullYear();
        }

        return options.string ? date_string : date;
    };

    Chance.prototype.hammertime = function (options) {
        return this.date(options).getTime();
    };

    Chance.prototype.hour = function (options) {
        options = initOptions(options, {
            min: options && options.twentyfour ? 0 : 1,
            max: options && options.twentyfour ? 23 : 12
        });

        testRange(options.min < 0, "Chance: Min cannot be less than 0.");
        testRange(options.twentyfour && options.max > 23, "Chance: Max cannot be greater than 23 for twentyfour option.");
        testRange(!options.twentyfour && options.max > 12, "Chance: Max cannot be greater than 12.");
        testRange(options.min > options.max, "Chance: Min cannot be greater than Max.");

        return this.natural({min: options.min, max: options.max});
    };

    Chance.prototype.millisecond = function () {
        return this.natural({max: 999});
    };

    Chance.prototype.minute = Chance.prototype.second = function (options) {
        options = initOptions(options, {min: 0, max: 59});

        testRange(options.min < 0, "Chance: Min cannot be less than 0.");
        testRange(options.max > 59, "Chance: Max cannot be greater than 59.");
        testRange(options.min > options.max, "Chance: Min cannot be greater than Max.");

        return this.natural({min: options.min, max: options.max});
    };

    Chance.prototype.month = function (options) {
        options = initOptions(options, {min: 1, max: 12});

        testRange(options.min < 1, "Chance: Min cannot be less than 1.");
        testRange(options.max > 12, "Chance: Max cannot be greater than 12.");
        testRange(options.min > options.max, "Chance: Min cannot be greater than Max.");

        var month = this.pick(this.months().slice(options.min - 1, options.max));
        return options.raw ? month : month.name;
    };

    Chance.prototype.months = function () {
        return this.get("months");
    };

    Chance.prototype.second = function () {
        return this.natural({max: 59});
    };

    Chance.prototype.timestamp = function () {
        return this.natural({min: 1, max: parseInt(new Date().getTime() / 1000, 10)});
    };

    Chance.prototype.weekday = function (options) {
        options = initOptions(options, {weekday_only: false});
        var weekdays = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday"];
        if (!options.weekday_only) {
            weekdays.push("Saturday");
            weekdays.push("Sunday");
        }
        return this.pickone(weekdays);
    };

    Chance.prototype.year = function (options) {
        // Default to current year as min if none specified
        options = initOptions(options, {min: new Date().getFullYear()});

        // Default to one century after current year as max if none specified
        options.max = (typeof options.max !== "undefined") ? options.max : options.min + 100;

        return this.natural(options).toString();
    };

    // -- End Time

    // -- Finance --

    Chance.prototype.cc = function (options) {
        options = initOptions(options);

        var type, number, to_generate;

        type = (options.type) ?
                    this.cc_type({ name: options.type, raw: true }) :
                    this.cc_type({ raw: true });

        number = type.prefix.split("");
        to_generate = type.length - type.prefix.length - 1;

        // Generates n - 1 digits
        number = number.concat(this.n(this.integer, to_generate, {min: 0, max: 9}));

        // Generates the last digit according to Luhn algorithm
        number.push(this.luhn_calculate(number.join("")));

        return number.join("");
    };

    Chance.prototype.cc_types = function () {
        // http://en.wikipedia.org/wiki/Bank_card_number#Issuer_identification_number_.28IIN.29
        return this.get("cc_types");
    };

    Chance.prototype.cc_type = function (options) {
        options = initOptions(options);
        var types = this.cc_types(),
            type = null;

        if (options.name) {
            for (var i = 0; i < types.length; i++) {
                // Accept either name or short_name to specify card type
                if (types[i].name === options.name || types[i].short_name === options.name) {
                    type = types[i];
                    break;
                }
            }
            if (type === null) {
                throw new RangeError("Chance: Credit card type '" + options.name + "' is not supported");
            }
        } else {
            type = this.pick(types);
        }

        return options.raw ? type : type.name;
    };

    // return all world currency by ISO 4217
    Chance.prototype.currency_types = function () {
        return this.get("currency_types");
    };

    // return random world currency by ISO 4217
    Chance.prototype.currency = function () {
        return this.pick(this.currency_types());
    };

    // return all timezones available
    Chance.prototype.timezones = function () {
        return this.get("timezones");
    };

    // return random timezone
    Chance.prototype.timezone = function () {
        return this.pick(this.timezones());
    };

    //Return random correct currency exchange pair (e.g. EUR/USD) or array of currency code
    Chance.prototype.currency_pair = function (returnAsString) {
        var currencies = this.unique(this.currency, 2, {
            comparator: function(arr, val) {

                return arr.reduce(function(acc, item) {
                    // If a match has been found, short circuit check and just return
                    return acc || (item.code === val.code);
                }, false);
            }
        });

        if (returnAsString) {
            return currencies[0].code + '/' + currencies[1].code;
        } else {
            return currencies;
        }
    };

    Chance.prototype.dollar = function (options) {
        // By default, a somewhat more sane max for dollar than all available numbers
        options = initOptions(options, {max : 10000, min : 0});

        var dollar = this.floating({min: options.min, max: options.max, fixed: 2}).toString(),
            cents = dollar.split('.')[1];

        if (cents === undefined) {
            dollar += '.00';
        } else if (cents.length < 2) {
            dollar = dollar + '0';
        }

        if (dollar < 0) {
            return '-$' + dollar.replace('-', '');
        } else {
            return '$' + dollar;
        }
    };

    Chance.prototype.euro = function (options) {
        return Number(this.dollar(options).replace("$", "")).toLocaleString() + "€";
    };

    Chance.prototype.exp = function (options) {
        options = initOptions(options);
        var exp = {};

        exp.year = this.exp_year();

        // If the year is this year, need to ensure month is greater than the
        // current month or this expiration will not be valid
        if (exp.year === (new Date().getFullYear()).toString()) {
            exp.month = this.exp_month({future: true});
        } else {
            exp.month = this.exp_month();
        }

        return options.raw ? exp : exp.month + '/' + exp.year;
    };

    Chance.prototype.exp_month = function (options) {
        options = initOptions(options);
        var month, month_int,
            // Date object months are 0 indexed
            curMonth = new Date().getMonth() + 1;

        if (options.future && (curMonth !== 12)) {
            do {
                month = this.month({raw: true}).numeric;
                month_int = parseInt(month, 10);
            } while (month_int <= curMonth);
        } else {
            month = this.month({raw: true}).numeric;
        }

        return month;
    };

    Chance.prototype.exp_year = function () {
        var curMonth = new Date().getMonth() + 1,
            curYear = new Date().getFullYear();

        return this.year({min: ((curMonth === 12) ? (curYear + 1) : curYear), max: (curYear + 10)});
    };

    Chance.prototype.vat = function (options) {
        options = initOptions(options, { country: 'it' });
        switch (options.country.toLowerCase()) {
            case 'it':
                return this.it_vat();
        }
    };

    /**
     * Generate a string matching IBAN pattern (https://en.wikipedia.org/wiki/International_Bank_Account_Number).
     * No country-specific formats support (yet)
     */
    Chance.prototype.iban = function () {
        var alpha = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
        var alphanum = alpha + '0123456789';
        var iban =
            this.string({ length: 2, pool: alpha }) +
            this.pad(this.integer({ min: 0, max: 99 }), 2) +
            this.string({ length: 4, pool: alphanum }) +
            this.pad(this.natural(), this.natural({ min: 6, max: 26 }));
        return iban;
    };

    // -- End Finance

    // -- Regional

    Chance.prototype.it_vat = function () {
        var it_vat = this.natural({min: 1, max: 1800000});

        it_vat = this.pad(it_vat, 7) + this.pad(this.pick(this.provinces({ country: 'it' })).code, 3);
        return it_vat + this.luhn_calculate(it_vat);
    };

    /*
     * this generator is written following the official algorithm
     * all data can be passed explicitely or randomized by calling chance.cf() without options
     * the code does not check that the input data is valid (it goes beyond the scope of the generator)
     *
     * @param  [Object] options = { first: first name,
     *                              last: last name,
     *                              gender: female|male,
                                    birthday: JavaScript date object,
                                    city: string(4), 1 letter + 3 numbers
                                   }
     * @return [string] codice fiscale
     *
    */
    Chance.prototype.cf = function (options) {
        options = options || {};
        var gender = !!options.gender ? options.gender : this.gender(),
            first = !!options.first ? options.first : this.first( { gender: gender, nationality: 'it'} ),
            last = !!options.last ? options.last : this.last( { nationality: 'it'} ),
            birthday = !!options.birthday ? options.birthday : this.birthday(),
            city = !!options.city ? options.city : this.pickone(['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'L', 'M', 'Z']) + this.pad(this.natural({max:999}), 3),
            cf = [],
            name_generator = function(name, isLast) {
                var temp,
                    return_value = [];

                if (name.length < 3) {
                    return_value = name.split("").concat("XXX".split("")).splice(0,3);
                }
                else {
                    temp = name.toUpperCase().split('').map(function(c){
                        return ("BCDFGHJKLMNPRSTVWZ".indexOf(c) !== -1) ? c : undefined;
                    }).join('');
                    if (temp.length > 3) {
                        if (isLast) {
                            temp = temp.substr(0,3);
                        } else {
                            temp = temp[0] + temp.substr(2,2);
                        }
                    }
                    if (temp.length < 3) {
                        return_value = temp;
                        temp = name.toUpperCase().split('').map(function(c){
                            return ("AEIOU".indexOf(c) !== -1) ? c : undefined;
                        }).join('').substr(0, 3 - return_value.length);
                    }
                    return_value = return_value + temp;
                }

                return return_value;
            },
            date_generator = function(birthday, gender, that) {
                var lettermonths = ['A', 'B', 'C', 'D', 'E', 'H', 'L', 'M', 'P', 'R', 'S', 'T'];

                return  birthday.getFullYear().toString().substr(2) +
                        lettermonths[birthday.getMonth()] +
                        that.pad(birthday.getDate() + ((gender.toLowerCase() === "female") ? 40 : 0), 2);
            },
            checkdigit_generator = function(cf) {
                var range1 = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ",
                    range2 = "ABCDEFGHIJABCDEFGHIJKLMNOPQRSTUVWXYZ",
                    evens  = "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
                    odds   = "BAKPLCQDREVOSFTGUHMINJWZYX",
                    digit  = 0;


                for(var i = 0; i < 15; i++) {
                    if (i % 2 !== 0) {
                        digit += evens.indexOf(range2[range1.indexOf(cf[i])]);
                    }
                    else {
                        digit +=  odds.indexOf(range2[range1.indexOf(cf[i])]);
                    }
                }
                return evens[digit % 26];
            };

        cf = cf.concat(name_generator(last, true), name_generator(first), date_generator(birthday, gender, this), city.toUpperCase().split("")).join("");
        cf += checkdigit_generator(cf.toUpperCase(), this);

        return cf.toUpperCase();
    };

    Chance.prototype.pl_pesel = function () {
        var number = this.natural({min: 1, max: 9999999999});
        var arr = this.pad(number, 10).split('');
        for (var i = 0; i < arr.length; i++) {
            arr[i] = parseInt(arr[i]);
        }

        var controlNumber = (1 * arr[0] + 3 * arr[1] + 7 * arr[2] + 9 * arr[3] + 1 * arr[4] + 3 * arr[5] + 7 * arr[6] + 9 * arr[7] + 1 * arr[8] + 3 * arr[9]) % 10;
        if(controlNumber !== 0) {
            controlNumber = 10 - controlNumber;
        }

        return arr.join('') + controlNumber;
    };

    Chance.prototype.pl_nip = function () {
        var number = this.natural({min: 1, max: 999999999});
        var arr = this.pad(number, 9).split('');
        for (var i = 0; i < arr.length; i++) {
            arr[i] = parseInt(arr[i]);
        }

        var controlNumber = (6 * arr[0] + 5 * arr[1] + 7 * arr[2] + 2 * arr[3] + 3 * arr[4] + 4 * arr[5] + 5 * arr[6] + 6 * arr[7] + 7 * arr[8]) % 11;
        if(controlNumber === 10) {
            return this.pl_nip();
        }

        return arr.join('') + controlNumber;
    };

    Chance.prototype.pl_regon = function () {
        var number = this.natural({min: 1, max: 99999999});
        var arr = this.pad(number, 8).split('');
        for (var i = 0; i < arr.length; i++) {
            arr[i] = parseInt(arr[i]);
        }

        var controlNumber = (8 * arr[0] + 9 * arr[1] + 2 * arr[2] + 3 * arr[3] + 4 * arr[4] + 5 * arr[5] + 6 * arr[6] + 7 * arr[7]) % 11;
        if(controlNumber === 10) {
            controlNumber = 0;
        }

        return arr.join('') + controlNumber;
    };

    // -- End Regional

    // -- Music --

    Chance.prototype.note = function(options) {
      // choices for 'notes' option:
      // flatKey - chromatic scale with flat notes (default)
      // sharpKey - chromatic scale with sharp notes
      // flats - just flat notes
      // sharps - just sharp notes
      // naturals - just natural notes
      // all - naturals, sharps and flats
      options = initOptions(options, { notes : 'flatKey'});
      var scales = {
        naturals: ['C', 'D', 'E', 'F', 'G', 'A', 'B'],
        flats: ['D♭', 'E♭', 'G♭', 'A♭', 'B♭'],
        sharps: ['C♯', 'D♯', 'F♯', 'G♯', 'A♯']
      };
      scales.all = scales.naturals.concat(scales.flats.concat(scales.sharps));
      scales.flatKey = scales.naturals.concat(scales.flats);
      scales.sharpKey = scales.naturals.concat(scales.sharps);
      return this.pickone(scales[options.notes]);
    };

    Chance.prototype.midi_note = function(options) {
      var min = 0;
      var max = 127;
      options = initOptions(options, { min : min, max : max });
      return this.integer({min: options.min, max: options.max});
    };

    Chance.prototype.chord_quality = function(options) {
      options = initOptions(options, { jazz: true });
      var chord_qualities = ['maj', 'min', 'aug', 'dim'];
      if (options.jazz){
        chord_qualities = [
          'maj7',
          'min7',
          '7',
          'sus',
          'dim',
          'ø'
        ];
      }
      return this.pickone(chord_qualities);
    };

    Chance.prototype.chord = function (options) {
      options = initOptions(options);
      return this.note(options) + this.chord_quality(options);
    };

    Chance.prototype.tempo = function (options) {
      var min = 40;
      var max = 320;
      options = initOptions(options, {min: min, max: max});
      return this.integer({min: options.min, max: options.max});
    };

    // -- End Music

    // -- Miscellaneous --

    // Coin - Flip, flip, flipadelphia
    Chance.prototype.coin = function(options) {
      return this.bool() ? "heads" : "tails";
    };

    // Dice - For all the board game geeks out there, myself included ;)
    function diceFn (range) {
        return function () {
            return this.natural(range);
        };
    }
    Chance.prototype.d4 = diceFn({min: 1, max: 4});
    Chance.prototype.d6 = diceFn({min: 1, max: 6});
    Chance.prototype.d8 = diceFn({min: 1, max: 8});
    Chance.prototype.d10 = diceFn({min: 1, max: 10});
    Chance.prototype.d12 = diceFn({min: 1, max: 12});
    Chance.prototype.d20 = diceFn({min: 1, max: 20});
    Chance.prototype.d30 = diceFn({min: 1, max: 30});
    Chance.prototype.d100 = diceFn({min: 1, max: 100});

    Chance.prototype.rpg = function (thrown, options) {
        options = initOptions(options);
        if (!thrown) {
            throw new RangeError("Chance: A type of die roll must be included");
        } else {
            var bits = thrown.toLowerCase().split("d"),
                rolls = [];

            if (bits.length !== 2 || !parseInt(bits[0], 10) || !parseInt(bits[1], 10)) {
                throw new Error("Chance: Invalid format provided. Please provide #d# where the first # is the number of dice to roll, the second # is the max of each die");
            }
            for (var i = bits[0]; i > 0; i--) {
                rolls[i - 1] = this.natural({min: 1, max: bits[1]});
            }
            return (typeof options.sum !== 'undefined' && options.sum) ? rolls.reduce(function (p, c) { return p + c; }) : rolls;
        }
    };

    // Guid
    Chance.prototype.guid = function (options) {
        options = initOptions(options, { version: 5 });

        var guid_pool = "abcdef1234567890",
            variant_pool = "ab89",
            guid = this.string({ pool: guid_pool, length: 8 }) + '-' +
                   this.string({ pool: guid_pool, length: 4 }) + '-' +
                   // The Version
                   options.version +
                   this.string({ pool: guid_pool, length: 3 }) + '-' +
                   // The Variant
                   this.string({ pool: variant_pool, length: 1 }) +
                   this.string({ pool: guid_pool, length: 3 }) + '-' +
                   this.string({ pool: guid_pool, length: 12 });
        return guid;
    };

    // Hash
    Chance.prototype.hash = function (options) {
        options = initOptions(options, {length : 40, casing: 'lower'});
        var pool = options.casing === 'upper' ? HEX_POOL.toUpperCase() : HEX_POOL;
        return this.string({pool: pool, length: options.length});
    };

    Chance.prototype.luhn_check = function (num) {
        var str = num.toString();
        var checkDigit = +str.substring(str.length - 1);
        return checkDigit === this.luhn_calculate(+str.substring(0, str.length - 1));
    };

    Chance.prototype.luhn_calculate = function (num) {
        var digits = num.toString().split("").reverse();
        var sum = 0;
        var digit;

        for (var i = 0, l = digits.length; l > i; ++i) {
            digit = +digits[i];
            if (i % 2 === 0) {
                digit *= 2;
                if (digit > 9) {
                    digit -= 9;
                }
            }
            sum += digit;
        }
        return (sum * 9) % 10;
    };

    // MD5 Hash
    Chance.prototype.md5 = function(options) {
        var opts = { str: '', key: null, raw: false };

        if (!options) {
            opts.str = this.string();
            options = {};
        }
        else if (typeof options === 'string') {
            opts.str = options;
            options = {};
        }
        else if (typeof options !== 'object') {
            return null;
        }
        else if(options.constructor === 'Array') {
            return null;
        }

        opts = initOptions(options, opts);

        if(!opts.str){
            throw new Error('A parameter is required to return an md5 hash.');
        }

        return this.bimd5.md5(opts.str, opts.key, opts.raw);
    };

    /**
     * #Description:
     * =====================================================
     * Generate random file name with extension
     *
     * The argument provide extension type
     * -> raster
     * -> vector
     * -> 3d
     * -> document
     *
     * If nothing is provided the function return random file name with random
     * extension type of any kind
     *
     * The user can validate the file name length range
     * If nothing provided the generated file name is random
     *
     * #Extension Pool :
     * * Currently the supported extensions are
     *  -> some of the most popular raster image extensions
     *  -> some of the most popular vector image extensions
     *  -> some of the most popular 3d image extensions
     *  -> some of the most popular document extensions
     *
     * #Examples :
     * =====================================================
     *
     * Return random file name with random extension. The file extension
     * is provided by a predefined collection of extensions. More about the extension
     * pool can be found in #Extension Pool section
     *
     * chance.file()
     * => dsfsdhjf.xml
     *
     * In order to generate a file name with specific length, specify the
     * length property and integer value. The extension is going to be random
     *
     * chance.file({length : 10})
     * => asrtineqos.pdf
     *
     * In order to generate file with extension from some of the predefined groups
     * of the extension pool just specify the extension pool category in fileType property
     *
     * chance.file({fileType : 'raster'})
     * => dshgssds.psd
     *
     * You can provide specific extension for your files
     * chance.file({extension : 'html'})
     * => djfsd.html
     *
     * Or you could pass custom collection of extensions by array or by object
     * chance.file({extensions : [...]})
     * => dhgsdsd.psd
     *
     * chance.file({extensions : { key : [...], key : [...]}})
     * => djsfksdjsd.xml
     *
     * @param  [collection] options
     * @return [string]
     *
     */
    Chance.prototype.file = function(options) {

        var fileOptions = options || {};
        var poolCollectionKey = "fileExtension";
        var typeRange   = Object.keys(this.get("fileExtension"));//['raster', 'vector', '3d', 'document'];
        var fileName;
        var fileExtension;

        // Generate random file name
        fileName = this.word({length : fileOptions.length});

        // Generate file by specific extension provided by the user
        if(fileOptions.extension) {

            fileExtension = fileOptions.extension;
            return (fileName + '.' + fileExtension);
        }

        // Generate file by specific extension collection
        if(fileOptions.extensions) {

            if(Array.isArray(fileOptions.extensions)) {

                fileExtension = this.pickone(fileOptions.extensions);
                return (fileName + '.' + fileExtension);
            }
            else if(fileOptions.extensions.constructor === Object) {

                var extensionObjectCollection = fileOptions.extensions;
                var keys = Object.keys(extensionObjectCollection);

                fileExtension = this.pickone(extensionObjectCollection[this.pickone(keys)]);
                return (fileName + '.' + fileExtension);
            }

            throw new Error("Chance: Extensions must be an Array or Object");
        }

        // Generate file extension based on specific file type
        if(fileOptions.fileType) {

            var fileType = fileOptions.fileType;
            if(typeRange.indexOf(fileType) !== -1) {

                fileExtension = this.pickone(this.get(poolCollectionKey)[fileType]);
                return (fileName + '.' + fileExtension);
            }

            throw new RangeError("Chance: Expect file type value to be 'raster', 'vector', '3d' or 'document'");
        }

        // Generate random file name if no extension options are passed
        fileExtension = this.pickone(this.get(poolCollectionKey)[this.pickone(typeRange)]);
        return (fileName + '.' + fileExtension);
    };

    var data = {

        firstNames: {
            "male": {
                "en": ["James", "John", "Robert", "Michael", "William", "David", "Richard", "Joseph", "Charles", "Thomas", "Christopher", "Daniel", "Matthew", "George", "Donald", "Anthony", "Paul", "Mark", "Edward", "Steven", "Kenneth", "Andrew", "Brian", "Joshua", "Kevin", "Ronald", "Timothy", "Jason", "Jeffrey", "Frank", "Gary", "Ryan", "Nicholas", "Eric", "Stephen", "Jacob", "Larry", "Jonathan", "Scott", "Raymond", "Justin", "Brandon", "Gregory", "Samuel", "Benjamin", "Patrick", "Jack", "Henry", "Walter", "Dennis", "Jerry", "Alexander", "Peter", "Tyler", "Douglas", "Harold", "Aaron", "Jose", "Adam", "Arthur", "Zachary", "Carl", "Nathan", "Albert", "Kyle", "Lawrence", "Joe", "Willie", "Gerald", "Roger", "Keith", "Jeremy", "Terry", "Harry", "Ralph", "Sean", "Jesse", "Roy", "Louis", "Billy", "Austin", "Bruce", "Eugene", "Christian", "Bryan", "Wayne", "Russell", "Howard", "Fred", "Ethan", "Jordan", "Philip", "Alan", "Juan", "Randy", "Vincent", "Bobby", "Dylan", "Johnny", "Phillip", "Victor", "Clarence", "Ernest", "Martin", "Craig", "Stanley", "Shawn", "Travis", "Bradley", "Leonard", "Earl", "Gabriel", "Jimmy", "Francis", "Todd", "Noah", "Danny", "Dale", "Cody", "Carlos", "Allen", "Frederick", "Logan", "Curtis", "Alex", "Joel", "Luis", "Norman", "Marvin", "Glenn", "Tony", "Nathaniel", "Rodney", "Melvin", "Alfred", "Steve", "Cameron", "Chad", "Edwin", "Caleb", "Evan", "Antonio", "Lee", "Herbert", "Jeffery", "Isaac", "Derek", "Ricky", "Marcus", "Theodore", "Elijah", "Luke", "Jesus", "Eddie", "Troy", "Mike", "Dustin", "Ray", "Adrian", "Bernard", "Leroy", "Angel", "Randall", "Wesley", "Ian", "Jared", "Mason", "Hunter", "Calvin", "Oscar", "Clifford", "Jay", "Shane", "Ronnie", "Barry", "Lucas", "Corey", "Manuel", "Leo", "Tommy", "Warren", "Jackson", "Isaiah", "Connor", "Don", "Dean", "Jon", "Julian", "Miguel", "Bill", "Lloyd", "Charlie", "Mitchell", "Leon", "Jerome", "Darrell", "Jeremiah", "Alvin", "Brett", "Seth", "Floyd", "Jim", "Blake", "Micheal", "Gordon", "Trevor", "Lewis", "Erik", "Edgar", "Vernon", "Devin", "Gavin", "Jayden", "Chris", "Clyde", "Tom", "Derrick", "Mario", "Brent", "Marc", "Herman", "Chase", "Dominic", "Ricardo", "Franklin", "Maurice", "Max", "Aiden", "Owen", "Lester", "Gilbert", "Elmer", "Gene", "Francisco", "Glen", "Cory", "Garrett", "Clayton", "Sam", "Jorge", "Chester", "Alejandro", "Jeff", "Harvey", "Milton", "Cole", "Ivan", "Andre", "Duane", "Landon"],
                // Data taken from http://www.dati.gov.it/dataset/comune-di-firenze_0163
                "it": ["Adolfo", "Alberto", "Aldo", "Alessandro", "Alessio", "Alfredo", "Alvaro", "Andrea", "Angelo", "Angiolo", "Antonino", "Antonio", "Attilio", "Benito", "Bernardo", "Bruno", "Carlo", "Cesare", "Christian", "Claudio", "Corrado", "Cosimo", "Cristian", "Cristiano", "Daniele", "Dario", "David", "Davide", "Diego", "Dino", "Domenico", "Duccio", "Edoardo", "Elia", "Elio", "Emanuele", "Emiliano", "Emilio", "Enrico", "Enzo", "Ettore", "Fabio", "Fabrizio", "Federico", "Ferdinando", "Fernando", "Filippo", "Francesco", "Franco", "Gabriele", "Giacomo", "Giampaolo", "Giampiero", "Giancarlo", "Gianfranco", "Gianluca", "Gianmarco", "Gianni", "Gino", "Giorgio", "Giovanni", "Giuliano", "Giulio", "Giuseppe", "Graziano", "Gregorio", "Guido", "Iacopo", "Jacopo", "Lapo", "Leonardo", "Lorenzo", "Luca", "Luciano", "Luigi", "Manuel", "Marcello", "Marco", "Marino", "Mario", "Massimiliano", "Massimo", "Matteo", "Mattia", "Maurizio", "Mauro", "Michele", "Mirko", "Mohamed", "Nello", "Neri", "Niccolò", "Nicola", "Osvaldo", "Otello", "Paolo", "Pier Luigi", "Piero", "Pietro", "Raffaele", "Remo", "Renato", "Renzo", "Riccardo", "Roberto", "Rolando", "Romano", "Salvatore", "Samuele", "Sandro", "Sergio", "Silvano", "Simone", "Stefano", "Thomas", "Tommaso", "Ubaldo", "Ugo", "Umberto", "Valerio", "Valter", "Vasco", "Vincenzo", "Vittorio"],
                // Data taken from http://www.svbkindernamen.nl/int/nl/kindernamen/index.html
                "nl": ["Aaron","Abel","Adam","Adriaan","Albert","Alexander","Ali","Arjen","Arno","Bart","Bas","Bastiaan","Benjamin","Bob", "Boris","Bram","Brent","Cas","Casper","Chris","Christiaan","Cornelis","Daan","Daley","Damian","Dani","Daniel","Daniël","David","Dean","Dirk","Dylan","Egbert","Elijah","Erik","Erwin","Evert","Ezra","Fabian","Fedde","Finn","Florian","Floris","Frank","Frans","Frederik","Freek","Geert","Gerard","Gerben","Gerrit","Gijs","Guus","Hans","Hendrik","Henk","Herman","Hidde","Hugo","Jaap","Jan Jaap","Jan-Willem","Jack","Jacob","Jan","Jason","Jasper","Jayden","Jelle","Jelte","Jens","Jeroen","Jesse","Jim","Job","Joep","Johannes","John","Jonathan","Joris","Joshua","Joël","Julian","Kees","Kevin","Koen","Lars","Laurens","Leendert","Lennard","Lodewijk","Luc","Luca","Lucas","Lukas","Luuk","Maarten","Marcus","Martijn","Martin","Matthijs","Maurits","Max","Mees","Melle","Mick","Mika","Milan","Mohamed","Mohammed","Morris","Muhammed","Nathan","Nick","Nico","Niek","Niels","Noah","Noud","Olivier","Oscar","Owen","Paul","Pepijn","Peter","Pieter","Pim","Quinten","Reinier","Rens","Robin","Ruben","Sam","Samuel","Sander","Sebastiaan","Sem","Sep","Sepp","Siem","Simon","Stan","Stef","Steven","Stijn","Sven","Teun","Thijmen","Thijs","Thomas","Tijn","Tim","Timo","Tobias","Tom","Victor","Vince","Willem","Wim","Wouter","Yusuf"]
            },

            "female": {
                "en": ["Mary", "Emma", "Elizabeth", "Minnie", "Margaret", "Ida", "Alice", "Bertha", "Sarah", "Annie", "Clara", "Ella", "Florence", "Cora", "Martha", "Laura", "Nellie", "Grace", "Carrie", "Maude", "Mabel", "Bessie", "Jennie", "Gertrude", "Julia", "Hattie", "Edith", "Mattie", "Rose", "Catherine", "Lillian", "Ada", "Lillie", "Helen", "Jessie", "Louise", "Ethel", "Lula", "Myrtle", "Eva", "Frances", "Lena", "Lucy", "Edna", "Maggie", "Pearl", "Daisy", "Fannie", "Josephine", "Dora", "Rosa", "Katherine", "Agnes", "Marie", "Nora", "May", "Mamie", "Blanche", "Stella", "Ellen", "Nancy", "Effie", "Sallie", "Nettie", "Della", "Lizzie", "Flora", "Susie", "Maud", "Mae", "Etta", "Harriet", "Sadie", "Caroline", "Katie", "Lydia", "Elsie", "Kate", "Susan", "Mollie", "Alma", "Addie", "Georgia", "Eliza", "Lulu", "Nannie", "Lottie", "Amanda", "Belle", "Charlotte", "Rebecca", "Ruth", "Viola", "Olive", "Amelia", "Hannah", "Jane", "Virginia", "Emily", "Matilda", "Irene", "Kathryn", "Esther", "Willie", "Henrietta", "Ollie", "Amy", "Rachel", "Sara", "Estella", "Theresa", "Augusta", "Ora", "Pauline", "Josie", "Lola", "Sophia", "Leona", "Anne", "Mildred", "Ann", "Beulah", "Callie", "Lou", "Delia", "Eleanor", "Barbara", "Iva", "Louisa", "Maria", "Mayme", "Evelyn", "Estelle", "Nina", "Betty", "Marion", "Bettie", "Dorothy", "Luella", "Inez", "Lela", "Rosie", "Allie", "Millie", "Janie", "Cornelia", "Victoria", "Ruby", "Winifred", "Alta", "Celia", "Christine", "Beatrice", "Birdie", "Harriett", "Mable", "Myra", "Sophie", "Tillie", "Isabel", "Sylvia", "Carolyn", "Isabelle", "Leila", "Sally", "Ina", "Essie", "Bertie", "Nell", "Alberta", "Katharine", "Lora", "Rena", "Mina", "Rhoda", "Mathilda", "Abbie", "Eula", "Dollie", "Hettie", "Eunice", "Fanny", "Ola", "Lenora", "Adelaide", "Christina", "Lelia", "Nelle", "Sue", "Johanna", "Lilly", "Lucinda", "Minerva", "Lettie", "Roxie", "Cynthia", "Helena", "Hilda", "Hulda", "Bernice", "Genevieve", "Jean", "Cordelia", "Marian", "Francis", "Jeanette", "Adeline", "Gussie", "Leah", "Lois", "Lura", "Mittie", "Hallie", "Isabella", "Olga", "Phoebe", "Teresa", "Hester", "Lida", "Lina", "Winnie", "Claudia", "Marguerite", "Vera", "Cecelia", "Bess", "Emilie", "Rosetta", "Verna", "Myrtie", "Cecilia", "Elva", "Olivia", "Ophelia", "Georgie", "Elnora", "Violet", "Adele", "Lily", "Linnie", "Loretta", "Madge", "Polly", "Virgie", "Eugenia", "Lucile", "Lucille", "Mabelle", "Rosalie"],
                // Data taken from http://www.dati.gov.it/dataset/comune-di-firenze_0162
                "it": ["Ada", "Adriana", "Alessandra", "Alessia", "Alice", "Angela", "Anna", "Anna Maria", "Annalisa", "Annita", "Annunziata", "Antonella", "Arianna", "Asia", "Assunta", "Aurora", "Barbara", "Beatrice", "Benedetta", "Bianca", "Bruna", "Camilla", "Carla", "Carlotta", "Carmela", "Carolina", "Caterina", "Catia", "Cecilia", "Chiara", "Cinzia", "Clara", "Claudia", "Costanza", "Cristina", "Daniela", "Debora", "Diletta", "Dina", "Donatella", "Elena", "Eleonora", "Elisa", "Elisabetta", "Emanuela", "Emma", "Eva", "Federica", "Fernanda", "Fiorella", "Fiorenza", "Flora", "Franca", "Francesca", "Gabriella", "Gaia", "Gemma", "Giada", "Gianna", "Gina", "Ginevra", "Giorgia", "Giovanna", "Giulia", "Giuliana", "Giuseppa", "Giuseppina", "Grazia", "Graziella", "Greta", "Ida", "Ilaria", "Ines", "Iolanda", "Irene", "Irma", "Isabella", "Jessica", "Laura", "Lea", "Letizia", "Licia", "Lidia", "Liliana", "Lina", "Linda", "Lisa", "Livia", "Loretta", "Luana", "Lucia", "Luciana", "Lucrezia", "Luisa", "Manuela", "Mara", "Marcella", "Margherita", "Maria", "Maria Cristina", "Maria Grazia", "Maria Luisa", "Maria Pia", "Maria Teresa", "Marina", "Marisa", "Marta", "Martina", "Marzia", "Matilde", "Melissa", "Michela", "Milena", "Mirella", "Monica", "Natalina", "Nella", "Nicoletta", "Noemi", "Olga", "Paola", "Patrizia", "Piera", "Pierina", "Raffaella", "Rebecca", "Renata", "Rina", "Rita", "Roberta", "Rosa", "Rosanna", "Rossana", "Rossella", "Sabrina", "Sandra", "Sara", "Serena", "Silvana", "Silvia", "Simona", "Simonetta", "Sofia", "Sonia", "Stefania", "Susanna", "Teresa", "Tina", "Tiziana", "Tosca", "Valentina", "Valeria", "Vanda", "Vanessa", "Vanna", "Vera", "Veronica", "Vilma", "Viola", "Virginia", "Vittoria"],
                // Data taken from http://www.svbkindernamen.nl/int/nl/kindernamen/index.html
                "nl": ["Ada", "Arianne", "Afke", "Amanda", "Amber", "Amy", "Aniek", "Anita", "Anja", "Anna", "Anne", "Annelies", "Annemarie", "Annette", "Anouk", "Astrid", "Aukje", "Barbara", "Bianca", "Carla", "Carlijn", "Carolien", "Chantal", "Charlotte", "Claudia", "Daniëlle", "Debora", "Diane", "Dora", "Eline", "Elise", "Ella", "Ellen", "Emma", "Esmee", "Evelien", "Esther", "Erica", "Eva", "Femke", "Fleur", "Floor", "Froukje", "Gea", "Gerda", "Hanna", "Hanneke", "Heleen", "Hilde", "Ilona", "Ina", "Inge", "Ingrid", "Iris", "Isabel", "Isabelle", "Janneke", "Jasmijn", "Jeanine", "Jennifer", "Jessica", "Johanna", "Joke", "Julia", "Julie", "Karen", "Karin", "Katja", "Kim", "Lara", "Laura", "Lena", "Lianne", "Lieke", "Lilian", "Linda", "Lisa", "Lisanne", "Lotte", "Louise", "Maaike", "Manon", "Marga", "Maria", "Marissa", "Marit", "Marjolein", "Martine", "Marleen", "Melissa", "Merel", "Miranda", "Michelle", "Mirjam", "Mirthe", "Naomi", "Natalie", 'Nienke', "Nina", "Noortje", "Olivia", "Patricia", "Paula", "Paulien", "Ramona", "Ria", "Rianne", "Roos", "Rosanne", "Ruth", "Sabrina", "Sandra", "Sanne", "Sara", "Saskia", "Silvia", "Sofia", "Sophie", "Sonja", "Suzanne", "Tamara", "Tess", "Tessa", "Tineke", "Valerie", "Vanessa", "Veerle", "Vera", "Victoria", "Wendy", "Willeke", "Yvonne", "Zoë"]
            }
        },

        lastNames: {
            "en": ['Smith', 'Johnson', 'Williams', 'Jones', 'Brown', 'Davis', 'Miller', 'Wilson', 'Moore', 'Taylor', 'Anderson', 'Thomas', 'Jackson', 'White', 'Harris', 'Martin', 'Thompson', 'Garcia', 'Martinez', 'Robinson', 'Clark', 'Rodriguez', 'Lewis', 'Lee', 'Walker', 'Hall', 'Allen', 'Young', 'Hernandez', 'King', 'Wright', 'Lopez', 'Hill', 'Scott', 'Green', 'Adams', 'Baker', 'Gonzalez', 'Nelson', 'Carter', 'Mitchell', 'Perez', 'Roberts', 'Turner', 'Phillips', 'Campbell', 'Parker', 'Evans', 'Edwards', 'Collins', 'Stewart', 'Sanchez', 'Morris', 'Rogers', 'Reed', 'Cook', 'Morgan', 'Bell', 'Murphy', 'Bailey', 'Rivera', 'Cooper', 'Richardson', 'Cox', 'Howard', 'Ward', 'Torres', 'Peterson', 'Gray', 'Ramirez', 'James', 'Watson', 'Brooks', 'Kelly', 'Sanders', 'Price', 'Bennett', 'Wood', 'Barnes', 'Ross', 'Henderson', 'Coleman', 'Jenkins', 'Perry', 'Powell', 'Long', 'Patterson', 'Hughes', 'Flores', 'Washington', 'Butler', 'Simmons', 'Foster', 'Gonzales', 'Bryant', 'Alexander', 'Russell', 'Griffin', 'Diaz', 'Hayes', 'Myers', 'Ford', 'Hamilton', 'Graham', 'Sullivan', 'Wallace', 'Woods', 'Cole', 'West', 'Jordan', 'Owens', 'Reynolds', 'Fisher', 'Ellis', 'Harrison', 'Gibson', 'McDonald', 'Cruz', 'Marshall', 'Ortiz', 'Gomez', 'Murray', 'Freeman', 'Wells', 'Webb', 'Simpson', 'Stevens', 'Tucker', 'Porter', 'Hunter', 'Hicks', 'Crawford', 'Henry', 'Boyd', 'Mason', 'Morales', 'Kennedy', 'Warren', 'Dixon', 'Ramos', 'Reyes', 'Burns', 'Gordon', 'Shaw', 'Holmes', 'Rice', 'Robertson', 'Hunt', 'Black', 'Daniels', 'Palmer', 'Mills', 'Nichols', 'Grant', 'Knight', 'Ferguson', 'Rose', 'Stone', 'Hawkins', 'Dunn', 'Perkins', 'Hudson', 'Spencer', 'Gardner', 'Stephens', 'Payne', 'Pierce', 'Berry', 'Matthews', 'Arnold', 'Wagner', 'Willis', 'Ray', 'Watkins', 'Olson', 'Carroll', 'Duncan', 'Snyder', 'Hart', 'Cunningham', 'Bradley', 'Lane', 'Andrews', 'Ruiz', 'Harper', 'Fox', 'Riley', 'Armstrong', 'Carpenter', 'Weaver', 'Greene', 'Lawrence', 'Elliott', 'Chavez', 'Sims', 'Austin', 'Peters', 'Kelley', 'Franklin', 'Lawson', 'Fields', 'Gutierrez', 'Ryan', 'Schmidt', 'Carr', 'Vasquez', 'Castillo', 'Wheeler', 'Chapman', 'Oliver', 'Montgomery', 'Richards', 'Williamson', 'Johnston', 'Banks', 'Meyer', 'Bishop', 'McCoy', 'Howell', 'Alvarez', 'Morrison', 'Hansen', 'Fernandez', 'Garza', 'Harvey', 'Little', 'Burton', 'Stanley', 'Nguyen', 'George', 'Jacobs', 'Reid', 'Kim', 'Fuller', 'Lynch', 'Dean', 'Gilbert', 'Garrett', 'Romero', 'Welch', 'Larson', 'Frazier', 'Burke', 'Hanson', 'Day', 'Mendoza', 'Moreno', 'Bowman', 'Medina', 'Fowler', 'Brewer', 'Hoffman', 'Carlson', 'Silva', 'Pearson', 'Holland', 'Douglas', 'Fleming', 'Jensen', 'Vargas', 'Byrd', 'Davidson', 'Hopkins', 'May', 'Terry', 'Herrera', 'Wade', 'Soto', 'Walters', 'Curtis', 'Neal', 'Caldwell', 'Lowe', 'Jennings', 'Barnett', 'Graves', 'Jimenez', 'Horton', 'Shelton', 'Barrett', 'Obrien', 'Castro', 'Sutton', 'Gregory', 'McKinney', 'Lucas', 'Miles', 'Craig', 'Rodriquez', 'Chambers', 'Holt', 'Lambert', 'Fletcher', 'Watts', 'Bates', 'Hale', 'Rhodes', 'Pena', 'Beck', 'Newman', 'Haynes', 'McDaniel', 'Mendez', 'Bush', 'Vaughn', 'Parks', 'Dawson', 'Santiago', 'Norris', 'Hardy', 'Love', 'Steele', 'Curry', 'Powers', 'Schultz', 'Barker', 'Guzman', 'Page', 'Munoz', 'Ball', 'Keller', 'Chandler', 'Weber', 'Leonard', 'Walsh', 'Lyons', 'Ramsey', 'Wolfe', 'Schneider', 'Mullins', 'Benson', 'Sharp', 'Bowen', 'Daniel', 'Barber', 'Cummings', 'Hines', 'Baldwin', 'Griffith', 'Valdez', 'Hubbard', 'Salazar', 'Reeves', 'Warner', 'Stevenson', 'Burgess', 'Santos', 'Tate', 'Cross', 'Garner', 'Mann', 'Mack', 'Moss', 'Thornton', 'Dennis', 'McGee', 'Farmer', 'Delgado', 'Aguilar', 'Vega', 'Glover', 'Manning', 'Cohen', 'Harmon', 'Rodgers', 'Robbins', 'Newton', 'Todd', 'Blair', 'Higgins', 'Ingram', 'Reese', 'Cannon', 'Strickland', 'Townsend', 'Potter', 'Goodwin', 'Walton', 'Rowe', 'Hampton', 'Ortega', 'Patton', 'Swanson', 'Joseph', 'Francis', 'Goodman', 'Maldonado', 'Yates', 'Becker', 'Erickson', 'Hodges', 'Rios', 'Conner', 'Adkins', 'Webster', 'Norman', 'Malone', 'Hammond', 'Flowers', 'Cobb', 'Moody', 'Quinn', 'Blake', 'Maxwell', 'Pope', 'Floyd', 'Osborne', 'Paul', 'McCarthy', 'Guerrero', 'Lindsey', 'Estrada', 'Sandoval', 'Gibbs', 'Tyler', 'Gross', 'Fitzgerald', 'Stokes', 'Doyle', 'Sherman', 'Saunders', 'Wise', 'Colon', 'Gill', 'Alvarado', 'Greer', 'Padilla', 'Simon', 'Waters', 'Nunez', 'Ballard', 'Schwartz', 'McBride', 'Houston', 'Christensen', 'Klein', 'Pratt', 'Briggs', 'Parsons', 'McLaughlin', 'Zimmerman', 'French', 'Buchanan', 'Moran', 'Copeland', 'Roy', 'Pittman', 'Brady', 'McCormick', 'Holloway', 'Brock', 'Poole', 'Frank', 'Logan', 'Owen', 'Bass', 'Marsh', 'Drake', 'Wong', 'Jefferson', 'Park', 'Morton', 'Abbott', 'Sparks', 'Patrick', 'Norton', 'Huff', 'Clayton', 'Massey', 'Lloyd', 'Figueroa', 'Carson', 'Bowers', 'Roberson', 'Barton', 'Tran', 'Lamb', 'Harrington', 'Casey', 'Boone', 'Cortez', 'Clarke', 'Mathis', 'Singleton', 'Wilkins', 'Cain', 'Bryan', 'Underwood', 'Hogan', 'McKenzie', 'Collier', 'Luna', 'Phelps', 'McGuire', 'Allison', 'Bridges', 'Wilkerson', 'Nash', 'Summers', 'Atkins'],
                // Data taken from http://www.dati.gov.it/dataset/comune-di-firenze_0164 (first 1000)
            "it": ["Acciai", "Aglietti", "Agostini", "Agresti", "Ahmed", "Aiazzi", "Albanese", "Alberti", "Alessi", "Alfani", "Alinari", "Alterini", "Amato", "Ammannati", "Ancillotti", "Andrei", "Andreini", "Andreoni", "Angeli", "Anichini", "Antonelli", "Antonini", "Arena", "Ariani", "Arnetoli", "Arrighi", "Baccani", "Baccetti", "Bacci", "Bacherini", "Badii", "Baggiani", "Baglioni", "Bagni", "Bagnoli", "Baldassini", "Baldi", "Baldini", "Ballerini", "Balli", "Ballini", "Balloni", "Bambi", "Banchi", "Bandinelli", "Bandini", "Bani", "Barbetti", "Barbieri", "Barchielli", "Bardazzi", "Bardelli", "Bardi", "Barducci", "Bargellini", "Bargiacchi", "Barni", "Baroncelli", "Baroncini", "Barone", "Baroni", "Baronti", "Bartalesi", "Bartoletti", "Bartoli", "Bartolini", "Bartoloni", "Bartolozzi", "Basagni", "Basile", "Bassi", "Batacchi", "Battaglia", "Battaglini", "Bausi", "Becagli", "Becattini", "Becchi", "Becucci", "Bellandi", "Bellesi", "Belli", "Bellini", "Bellucci", "Bencini", "Benedetti", "Benelli", "Beni", "Benini", "Bensi", "Benucci", "Benvenuti", "Berlincioni", "Bernacchioni", "Bernardi", "Bernardini", "Berni", "Bernini", "Bertelli", "Berti", "Bertini", "Bessi", "Betti", "Bettini", "Biagi", "Biagini", "Biagioni", "Biagiotti", "Biancalani", "Bianchi", "Bianchini", "Bianco", "Biffoli", "Bigazzi", "Bigi", "Biliotti", "Billi", "Binazzi", "Bindi", "Bini", "Biondi", "Bizzarri", "Bocci", "Bogani", "Bolognesi", "Bonaiuti", "Bonanni", "Bonciani", "Boncinelli", "Bondi", "Bonechi", "Bongini", "Boni", "Bonini", "Borchi", "Boretti", "Borghi", "Borghini", "Borgioli", "Borri", "Borselli", "Boschi", "Bottai", "Bracci", "Braccini", "Brandi", "Braschi", "Bravi", "Brazzini", "Breschi", "Brilli", "Brizzi", "Brogelli", "Brogi", "Brogioni", "Brunelli", "Brunetti", "Bruni", "Bruno", "Brunori", "Bruschi", "Bucci", "Bucciarelli", "Buccioni", "Bucelli", "Bulli", "Burberi", "Burchi", "Burgassi", "Burroni", "Bussotti", "Buti", "Caciolli", "Caiani", "Calabrese", "Calamai", "Calamandrei", "Caldini", "Calo'", "Calonaci", "Calosi", "Calvelli", "Cambi", "Camiciottoli", "Cammelli", "Cammilli", "Campolmi", "Cantini", "Capanni", "Capecchi", "Caponi", "Cappelletti", "Cappelli", "Cappellini", "Cappugi", "Capretti", "Caputo", "Carbone", "Carboni", "Cardini", "Carlesi", "Carletti", "Carli", "Caroti", "Carotti", "Carrai", "Carraresi", "Carta", "Caruso", "Casalini", "Casati", "Caselli", "Casini", "Castagnoli", "Castellani", "Castelli", "Castellucci", "Catalano", "Catarzi", "Catelani", "Cavaciocchi", "Cavallaro", "Cavallini", "Cavicchi", "Cavini", "Ceccarelli", "Ceccatelli", "Ceccherelli", "Ceccherini", "Cecchi", "Cecchini", "Cecconi", "Cei", "Cellai", "Celli", "Cellini", "Cencetti", "Ceni", "Cenni", "Cerbai", "Cesari", "Ceseri", "Checcacci", "Checchi", "Checcucci", "Cheli", "Chellini", "Chen", "Cheng", "Cherici", "Cherubini", "Chiaramonti", "Chiarantini", "Chiarelli", "Chiari", "Chiarini", "Chiarugi", "Chiavacci", "Chiesi", "Chimenti", "Chini", "Chirici", "Chiti", "Ciabatti", "Ciampi", "Cianchi", "Cianfanelli", "Cianferoni", "Ciani", "Ciapetti", "Ciappi", "Ciardi", "Ciatti", "Cicali", "Ciccone", "Cinelli", "Cini", "Ciobanu", "Ciolli", "Cioni", "Cipriani", "Cirillo", "Cirri", "Ciucchi", "Ciuffi", "Ciulli", "Ciullini", "Clemente", "Cocchi", "Cognome", "Coli", "Collini", "Colombo", "Colzi", "Comparini", "Conforti", "Consigli", "Conte", "Conti", "Contini", "Coppini", "Coppola", "Corsi", "Corsini", "Corti", "Cortini", "Cosi", "Costa", "Costantini", "Costantino", "Cozzi", "Cresci", "Crescioli", "Cresti", "Crini", "Curradi", "D'Agostino", "D'Alessandro", "D'Amico", "D'Angelo", "Daddi", "Dainelli", "Dallai", "Danti", "Davitti", "De Angelis", "De Luca", "De Marco", "De Rosa", "De Santis", "De Simone", "De Vita", "Degl'Innocenti", "Degli Innocenti", "Dei", "Del Lungo", "Del Re", "Di Marco", "Di Stefano", "Dini", "Diop", "Dobre", "Dolfi", "Donati", "Dondoli", "Dong", "Donnini", "Ducci", "Dumitru", "Ermini", "Esposito", "Evangelisti", "Fabbri", "Fabbrini", "Fabbrizzi", "Fabbroni", "Fabbrucci", "Fabiani", "Facchini", "Faggi", "Fagioli", "Failli", "Faini", "Falciani", "Falcini", "Falcone", "Fallani", "Falorni", "Falsini", "Falugiani", "Fancelli", "Fanelli", "Fanetti", "Fanfani", "Fani", "Fantappie'", "Fantechi", "Fanti", "Fantini", "Fantoni", "Farina", "Fattori", "Favilli", "Fedi", "Fei", "Ferrante", "Ferrara", "Ferrari", "Ferraro", "Ferretti", "Ferri", "Ferrini", "Ferroni", "Fiaschi", "Fibbi", "Fiesoli", "Filippi", "Filippini", "Fini", "Fioravanti", "Fiore", "Fiorentini", "Fiorini", "Fissi", "Focardi", "Foggi", "Fontana", "Fontanelli", "Fontani", "Forconi", "Formigli", "Forte", "Forti", "Fortini", "Fossati", "Fossi", "Francalanci", "Franceschi", "Franceschini", "Franchi", "Franchini", "Franci", "Francini", "Francioni", "Franco", "Frassineti", "Frati", "Fratini", "Frilli", "Frizzi", "Frosali", "Frosini", "Frullini", "Fusco", "Fusi", "Gabbrielli", "Gabellini", "Gagliardi", "Galanti", "Galardi", "Galeotti", "Galletti", "Galli", "Gallo", "Gallori", "Gambacciani", "Gargani", "Garofalo", "Garuglieri", "Gashi", "Gasperini", "Gatti", "Gelli", "Gensini", "Gentile", "Gentili", "Geri", "Gerini", "Gheri", "Ghini", "Giachetti", "Giachi", "Giacomelli", "Gianassi", "Giani", "Giannelli", "Giannetti", "Gianni", "Giannini", "Giannoni", "Giannotti", "Giannozzi", "Gigli", "Giordano", "Giorgetti", "Giorgi", "Giovacchini", "Giovannelli", "Giovannetti", "Giovannini", "Giovannoni", "Giuliani", "Giunti", "Giuntini", "Giusti", "Gonnelli", "Goretti", "Gori", "Gradi", "Gramigni", "Grassi", "Grasso", "Graziani", "Grazzini", "Greco", "Grifoni", "Grillo", "Grimaldi", "Grossi", "Gualtieri", "Guarducci", "Guarino", "Guarnieri", "Guasti", "Guerra", "Guerri", "Guerrini", "Guidi", "Guidotti", "He", "Hoxha", "Hu", "Huang", "Iandelli", "Ignesti", "Innocenti", "Jin", "La Rosa", "Lai", "Landi", "Landini", "Lanini", "Lapi", "Lapini", "Lari", "Lascialfari", "Lastrucci", "Latini", "Lazzeri", "Lazzerini", "Lelli", "Lenzi", "Leonardi", "Leoncini", "Leone", "Leoni", "Lepri", "Li", "Liao", "Lin", "Linari", "Lippi", "Lisi", "Livi", "Lombardi", "Lombardini", "Lombardo", "Longo", "Lopez", "Lorenzi", "Lorenzini", "Lorini", "Lotti", "Lu", "Lucchesi", "Lucherini", "Lunghi", "Lupi", "Madiai", "Maestrini", "Maffei", "Maggi", "Maggini", "Magherini", "Magini", "Magnani", "Magnelli", "Magni", "Magnolfi", "Magrini", "Malavolti", "Malevolti", "Manca", "Mancini", "Manetti", "Manfredi", "Mangani", "Mannelli", "Manni", "Mannini", "Mannucci", "Manuelli", "Manzini", "Marcelli", "Marchese", "Marchetti", "Marchi", "Marchiani", "Marchionni", "Marconi", "Marcucci", "Margheri", "Mari", "Mariani", "Marilli", "Marinai", "Marinari", "Marinelli", "Marini", "Marino", "Mariotti", "Marsili", "Martelli", "Martinelli", "Martini", "Martino", "Marzi", "Masi", "Masini", "Masoni", "Massai", "Materassi", "Mattei", "Matteini", "Matteucci", "Matteuzzi", "Mattioli", "Mattolini", "Matucci", "Mauro", "Mazzanti", "Mazzei", "Mazzetti", "Mazzi", "Mazzini", "Mazzocchi", "Mazzoli", "Mazzoni", "Mazzuoli", "Meacci", "Mecocci", "Meini", "Melani", "Mele", "Meli", "Mengoni", "Menichetti", "Meoni", "Merlini", "Messeri", "Messina", "Meucci", "Miccinesi", "Miceli", "Micheli", "Michelini", "Michelozzi", "Migliori", "Migliorini", "Milani", "Miniati", "Misuri", "Monaco", "Montagnani", "Montagni", "Montanari", "Montelatici", "Monti", "Montigiani", "Montini", "Morandi", "Morandini", "Morelli", "Moretti", "Morganti", "Mori", "Morini", "Moroni", "Morozzi", "Mugnai", "Mugnaini", "Mustafa", "Naldi", "Naldini", "Nannelli", "Nanni", "Nannini", "Nannucci", "Nardi", "Nardini", "Nardoni", "Natali", "Ndiaye", "Nencetti", "Nencini", "Nencioni", "Neri", "Nesi", "Nesti", "Niccolai", "Niccoli", "Niccolini", "Nigi", "Nistri", "Nocentini", "Noferini", "Novelli", "Nucci", "Nuti", "Nutini", "Oliva", "Olivieri", "Olmi", "Orlandi", "Orlandini", "Orlando", "Orsini", "Ortolani", "Ottanelli", "Pacciani", "Pace", "Paci", "Pacini", "Pagani", "Pagano", "Paggetti", "Pagliai", "Pagni", "Pagnini", "Paladini", "Palagi", "Palchetti", "Palloni", "Palmieri", "Palumbo", "Pampaloni", "Pancani", "Pandolfi", "Pandolfini", "Panerai", "Panichi", "Paoletti", "Paoli", "Paolini", "Papi", "Papini", "Papucci", "Parenti", "Parigi", "Parisi", "Parri", "Parrini", "Pasquini", "Passeri", "Pecchioli", "Pecorini", "Pellegrini", "Pepi", "Perini", "Perrone", "Peruzzi", "Pesci", "Pestelli", "Petri", "Petrini", "Petrucci", "Pettini", "Pezzati", "Pezzatini", "Piani", "Piazza", "Piazzesi", "Piazzini", "Piccardi", "Picchi", "Piccini", "Piccioli", "Pieraccini", "Pieraccioni", "Pieralli", "Pierattini", "Pieri", "Pierini", "Pieroni", "Pietrini", "Pini", "Pinna", "Pinto", "Pinzani", "Pinzauti", "Piras", "Pisani", "Pistolesi", "Poggesi", "Poggi", "Poggiali", "Poggiolini", "Poli", "Pollastri", "Porciani", "Pozzi", "Pratellesi", "Pratesi", "Prosperi", "Pruneti", "Pucci", "Puccini", "Puccioni", "Pugi", "Pugliese", "Puliti", "Querci", "Quercioli", "Raddi", "Radu", "Raffaelli", "Ragazzini", "Ranfagni", "Ranieri", "Rastrelli", "Raugei", "Raveggi", "Renai", "Renzi", "Rettori", "Ricci", "Ricciardi", "Ridi", "Ridolfi", "Rigacci", "Righi", "Righini", "Rinaldi", "Risaliti", "Ristori", "Rizzo", "Rocchi", "Rocchini", "Rogai", "Romagnoli", "Romanelli", "Romani", "Romano", "Romei", "Romeo", "Romiti", "Romoli", "Romolini", "Rontini", "Rosati", "Roselli", "Rosi", "Rossetti", "Rossi", "Rossini", "Rovai", "Ruggeri", "Ruggiero", "Russo", "Sabatini", "Saccardi", "Sacchetti", "Sacchi", "Sacco", "Salerno", "Salimbeni", "Salucci", "Salvadori", "Salvestrini", "Salvi", "Salvini", "Sanesi", "Sani", "Sanna", "Santi", "Santini", "Santoni", "Santoro", "Santucci", "Sardi", "Sarri", "Sarti", "Sassi", "Sbolci", "Scali", "Scarpelli", "Scarselli", "Scopetani", "Secci", "Selvi", "Senatori", "Senesi", "Serafini", "Sereni", "Serra", "Sestini", "Sguanci", "Sieni", "Signorini", "Silvestri", "Simoncini", "Simonetti", "Simoni", "Singh", "Sodi", "Soldi", "Somigli", "Sorbi", "Sorelli", "Sorrentino", "Sottili", "Spina", "Spinelli", "Staccioli", "Staderini", "Stefanelli", "Stefani", "Stefanini", "Stella", "Susini", "Tacchi", "Tacconi", "Taddei", "Tagliaferri", "Tamburini", "Tanganelli", "Tani", "Tanini", "Tapinassi", "Tarchi", "Tarchiani", "Targioni", "Tassi", "Tassini", "Tempesti", "Terzani", "Tesi", "Testa", "Testi", "Tilli", "Tinti", "Tirinnanzi", "Toccafondi", "Tofanari", "Tofani", "Tognaccini", "Tonelli", "Tonini", "Torelli", "Torrini", "Tosi", "Toti", "Tozzi", "Trambusti", "Trapani", "Tucci", "Turchi", "Ugolini", "Ulivi", "Valente", "Valenti", "Valentini", "Vangelisti", "Vanni", "Vannini", "Vannoni", "Vannozzi", "Vannucchi", "Vannucci", "Ventura", "Venturi", "Venturini", "Vestri", "Vettori", "Vichi", "Viciani", "Vieri", "Vigiani", "Vignoli", "Vignolini", "Vignozzi", "Villani", "Vinci", "Visani", "Vitale", "Vitali", "Viti", "Viviani", "Vivoli", "Volpe", "Volpi", "Wang", "Wu", "Xu", "Yang", "Ye", "Zagli", "Zani", "Zanieri", "Zanobini", "Zecchi", "Zetti", "Zhang", "Zheng", "Zhou", "Zhu", "Zingoni", "Zini", "Zoppi"],
            // http://www.voornamelijk.nl/meest-voorkomende-achternamen-in-nederland-en-amsterdam/
            "nl":["Albers", "Alblas", "Appelman", "Baars", "Baas", "Bakker", "Blank", "Bleeker", "Blok", "Blom", "Boer", "Boers", "Boldewijn", "Boon", "Boot", "Bos", "Bosch", "Bosma", "Bosman", "Bouma", "Bouman", "Bouwman", "Brands", "Brouwer", "Burger", "Buijs", "Buitenhuis", "Ceder", "Cohen", "Dekker", "Dekkers", "Dijkman", "Dijkstra", "Driessen", "Drost", "Engel", "Evers", "Faber", "Franke", "Gerritsen", "Goedhart", "Goossens", "Groen", "Groenenberg", "Groot", "Haan", "Hart", "Heemskerk", "Hendriks", "Hermans", "Hoekstra", "Hofman", "Hopman", "Huisman", "Jacobs", "Jansen", "Janssen", "Jonker", "Jaspers", "Keijzer", "Klaassen", "Klein", "Koek", "Koenders", "Kok", "Kool", "Koopman", "Koopmans", "Koning", "Koster", "Kramer", "Kroon", "Kuijpers", "Kuiper", "Kuipers", "Kurt", "Koster", "Kwakman", "Los", "Lubbers", "Maas", "Markus", "Martens", "Meijer", "Mol", "Molenaar", "Mulder", "Nieuwenhuis", "Peeters", "Peters", "Pengel", "Pieters", "Pool", "Post", "Postma", "Prins", "Pronk", "Reijnders", "Rietveld", "Roest", "Roos", "Sanders", "Schaap", "Scheffer", "Schenk", "Schilder", "Schipper", "Schmidt", "Scholten", "Schouten", "Schut", "Schutte", "Schuurman", "Simons", "Smeets", "Smit", "Smits", "Snel", "Swinkels", "Tas", "Terpstra", "Timmermans", "Tol", "Tromp", "Troost", "Valk", "Veenstra", "Veldkamp", "Verbeek", "Verheul", "Verhoeven", "Vermeer", "Vermeulen", "Verweij", "Vink", "Visser", "Voorn", "Vos", "Wagenaar", "Wiersema", "Willems", "Willemsen", "Witteveen", "Wolff", "Wolters", "Zijlstra", "Zwart", "de Beer", "de Boer", "de Bruijn", "de Bruin", "de Graaf", "de Groot", "de Haan", "de Haas", "de Jager", "de Jong", "de Jonge", "de Koning", "de Lange", "de Leeuw", "de Ridder", "de Rooij", "de Ruiter", "de Vos", "de Vries", "de Waal", "de Wit", "de Zwart", "van Beek", "van Boven", "van Dam", "van Dijk", "van Dongen", "van Doorn", "van Egmond", "van Eijk", "van Es", "van Gelder", "van Gelderen", "van Houten", "van Hulst", "van Kempen", "van Kesteren", "van Leeuwen", "van Loon", "van Mill", "van Noord", "van Ommen", "van Ommeren", "van Oosten", "van Oostveen", "van Rijn", "van Schaik", "van Veen", "van Vliet", "van Wijk", "van Wijngaarden", "van den Poel", "van de Pol", "van den Ploeg", "van de Ven", "van den Berg", "van den Bosch", "van den Brink", "van den Broek", "van den Heuvel", "van der Heijden", "van der Horst", "van der Hulst", "van der Kroon", "van der Laan", "van der Linden", "van der Meer", "van der Meij", "van der Meulen", "van der Molen", "van der Sluis", "van der Spek", "van der Veen", "van der Velde", "van der Velden", "van der Vliet", "van der Wal"]
        },

        // Data taken from https://github.com/umpirsky/country-list/blob/master/data/en_US/country.json
        countries: [{"name":"Afghanistan","abbreviation":"AF"},{"name":"Åland Islands","abbreviation":"AX"},{"name":"Albania","abbreviation":"AL"},{"name":"Algeria","abbreviation":"DZ"},{"name":"American Samoa","abbreviation":"AS"},{"name":"Andorra","abbreviation":"AD"},{"name":"Angola","abbreviation":"AO"},{"name":"Anguilla","abbreviation":"AI"},{"name":"Antarctica","abbreviation":"AQ"},{"name":"Antigua & Barbuda","abbreviation":"AG"},{"name":"Argentina","abbreviation":"AR"},{"name":"Armenia","abbreviation":"AM"},{"name":"Aruba","abbreviation":"AW"},{"name":"Ascension Island","abbreviation":"AC"},{"name":"Australia","abbreviation":"AU"},{"name":"Austria","abbreviation":"AT"},{"name":"Azerbaijan","abbreviation":"AZ"},{"name":"Bahamas","abbreviation":"BS"},{"name":"Bahrain","abbreviation":"BH"},{"name":"Bangladesh","abbreviation":"BD"},{"name":"Barbados","abbreviation":"BB"},{"name":"Belarus","abbreviation":"BY"},{"name":"Belgium","abbreviation":"BE"},{"name":"Belize","abbreviation":"BZ"},{"name":"Benin","abbreviation":"BJ"},{"name":"Bermuda","abbreviation":"BM"},{"name":"Bhutan","abbreviation":"BT"},{"name":"Bolivia","abbreviation":"BO"},{"name":"Bosnia & Herzegovina","abbreviation":"BA"},{"name":"Botswana","abbreviation":"BW"},{"name":"Brazil","abbreviation":"BR"},{"name":"British Indian Ocean Territory","abbreviation":"IO"},{"name":"British Virgin Islands","abbreviation":"VG"},{"name":"Brunei","abbreviation":"BN"},{"name":"Bulgaria","abbreviation":"BG"},{"name":"Burkina Faso","abbreviation":"BF"},{"name":"Burundi","abbreviation":"BI"},{"name":"Cambodia","abbreviation":"KH"},{"name":"Cameroon","abbreviation":"CM"},{"name":"Canada","abbreviation":"CA"},{"name":"Canary Islands","abbreviation":"IC"},{"name":"Cape Verde","abbreviation":"CV"},{"name":"Caribbean Netherlands","abbreviation":"BQ"},{"name":"Cayman Islands","abbreviation":"KY"},{"name":"Central African Republic","abbreviation":"CF"},{"name":"Ceuta & Melilla","abbreviation":"EA"},{"name":"Chad","abbreviation":"TD"},{"name":"Chile","abbreviation":"CL"},{"name":"China","abbreviation":"CN"},{"name":"Christmas Island","abbreviation":"CX"},{"name":"Cocos (Keeling) Islands","abbreviation":"CC"},{"name":"Colombia","abbreviation":"CO"},{"name":"Comoros","abbreviation":"KM"},{"name":"Congo - Brazzaville","abbreviation":"CG"},{"name":"Congo - Kinshasa","abbreviation":"CD"},{"name":"Cook Islands","abbreviation":"CK"},{"name":"Costa Rica","abbreviation":"CR"},{"name":"Côte d'Ivoire","abbreviation":"CI"},{"name":"Croatia","abbreviation":"HR"},{"name":"Cuba","abbreviation":"CU"},{"name":"Curaçao","abbreviation":"CW"},{"name":"Cyprus","abbreviation":"CY"},{"name":"Czech Republic","abbreviation":"CZ"},{"name":"Denmark","abbreviation":"DK"},{"name":"Diego Garcia","abbreviation":"DG"},{"name":"Djibouti","abbreviation":"DJ"},{"name":"Dominica","abbreviation":"DM"},{"name":"Dominican Republic","abbreviation":"DO"},{"name":"Ecuador","abbreviation":"EC"},{"name":"Egypt","abbreviation":"EG"},{"name":"El Salvador","abbreviation":"SV"},{"name":"Equatorial Guinea","abbreviation":"GQ"},{"name":"Eritrea","abbreviation":"ER"},{"name":"Estonia","abbreviation":"EE"},{"name":"Ethiopia","abbreviation":"ET"},{"name":"Falkland Islands","abbreviation":"FK"},{"name":"Faroe Islands","abbreviation":"FO"},{"name":"Fiji","abbreviation":"FJ"},{"name":"Finland","abbreviation":"FI"},{"name":"France","abbreviation":"FR"},{"name":"French Guiana","abbreviation":"GF"},{"name":"French Polynesia","abbreviation":"PF"},{"name":"French Southern Territories","abbreviation":"TF"},{"name":"Gabon","abbreviation":"GA"},{"name":"Gambia","abbreviation":"GM"},{"name":"Georgia","abbreviation":"GE"},{"name":"Germany","abbreviation":"DE"},{"name":"Ghana","abbreviation":"GH"},{"name":"Gibraltar","abbreviation":"GI"},{"name":"Greece","abbreviation":"GR"},{"name":"Greenland","abbreviation":"GL"},{"name":"Grenada","abbreviation":"GD"},{"name":"Guadeloupe","abbreviation":"GP"},{"name":"Guam","abbreviation":"GU"},{"name":"Guatemala","abbreviation":"GT"},{"name":"Guernsey","abbreviation":"GG"},{"name":"Guinea","abbreviation":"GN"},{"name":"Guinea-Bissau","abbreviation":"GW"},{"name":"Guyana","abbreviation":"GY"},{"name":"Haiti","abbreviation":"HT"},{"name":"Honduras","abbreviation":"HN"},{"name":"Hong Kong SAR China","abbreviation":"HK"},{"name":"Hungary","abbreviation":"HU"},{"name":"Iceland","abbreviation":"IS"},{"name":"India","abbreviation":"IN"},{"name":"Indonesia","abbreviation":"ID"},{"name":"Iran","abbreviation":"IR"},{"name":"Iraq","abbreviation":"IQ"},{"name":"Ireland","abbreviation":"IE"},{"name":"Isle of Man","abbreviation":"IM"},{"name":"Israel","abbreviation":"IL"},{"name":"Italy","abbreviation":"IT"},{"name":"Jamaica","abbreviation":"JM"},{"name":"Japan","abbreviation":"JP"},{"name":"Jersey","abbreviation":"JE"},{"name":"Jordan","abbreviation":"JO"},{"name":"Kazakhstan","abbreviation":"KZ"},{"name":"Kenya","abbreviation":"KE"},{"name":"Kiribati","abbreviation":"KI"},{"name":"Kosovo","abbreviation":"XK"},{"name":"Kuwait","abbreviation":"KW"},{"name":"Kyrgyzstan","abbreviation":"KG"},{"name":"Laos","abbreviation":"LA"},{"name":"Latvia","abbreviation":"LV"},{"name":"Lebanon","abbreviation":"LB"},{"name":"Lesotho","abbreviation":"LS"},{"name":"Liberia","abbreviation":"LR"},{"name":"Libya","abbreviation":"LY"},{"name":"Liechtenstein","abbreviation":"LI"},{"name":"Lithuania","abbreviation":"LT"},{"name":"Luxembourg","abbreviation":"LU"},{"name":"Macau SAR China","abbreviation":"MO"},{"name":"Macedonia","abbreviation":"MK"},{"name":"Madagascar","abbreviation":"MG"},{"name":"Malawi","abbreviation":"MW"},{"name":"Malaysia","abbreviation":"MY"},{"name":"Maldives","abbreviation":"MV"},{"name":"Mali","abbreviation":"ML"},{"name":"Malta","abbreviation":"MT"},{"name":"Marshall Islands","abbreviation":"MH"},{"name":"Martinique","abbreviation":"MQ"},{"name":"Mauritania","abbreviation":"MR"},{"name":"Mauritius","abbreviation":"MU"},{"name":"Mayotte","abbreviation":"YT"},{"name":"Mexico","abbreviation":"MX"},{"name":"Micronesia","abbreviation":"FM"},{"name":"Moldova","abbreviation":"MD"},{"name":"Monaco","abbreviation":"MC"},{"name":"Mongolia","abbreviation":"MN"},{"name":"Montenegro","abbreviation":"ME"},{"name":"Montserrat","abbreviation":"MS"},{"name":"Morocco","abbreviation":"MA"},{"name":"Mozambique","abbreviation":"MZ"},{"name":"Myanmar (Burma)","abbreviation":"MM"},{"name":"Namibia","abbreviation":"NA"},{"name":"Nauru","abbreviation":"NR"},{"name":"Nepal","abbreviation":"NP"},{"name":"Netherlands","abbreviation":"NL"},{"name":"New Caledonia","abbreviation":"NC"},{"name":"New Zealand","abbreviation":"NZ"},{"name":"Nicaragua","abbreviation":"NI"},{"name":"Niger","abbreviation":"NE"},{"name":"Nigeria","abbreviation":"NG"},{"name":"Niue","abbreviation":"NU"},{"name":"Norfolk Island","abbreviation":"NF"},{"name":"North Korea","abbreviation":"KP"},{"name":"Northern Mariana Islands","abbreviation":"MP"},{"name":"Norway","abbreviation":"NO"},{"name":"Oman","abbreviation":"OM"},{"name":"Pakistan","abbreviation":"PK"},{"name":"Palau","abbreviation":"PW"},{"name":"Palestinian Territories","abbreviation":"PS"},{"name":"Panama","abbreviation":"PA"},{"name":"Papua New Guinea","abbreviation":"PG"},{"name":"Paraguay","abbreviation":"PY"},{"name":"Peru","abbreviation":"PE"},{"name":"Philippines","abbreviation":"PH"},{"name":"Pitcairn Islands","abbreviation":"PN"},{"name":"Poland","abbreviation":"PL"},{"name":"Portugal","abbreviation":"PT"},{"name":"Puerto Rico","abbreviation":"PR"},{"name":"Qatar","abbreviation":"QA"},{"name":"Réunion","abbreviation":"RE"},{"name":"Romania","abbreviation":"RO"},{"name":"Russia","abbreviation":"RU"},{"name":"Rwanda","abbreviation":"RW"},{"name":"Samoa","abbreviation":"WS"},{"name":"San Marino","abbreviation":"SM"},{"name":"São Tomé and Príncipe","abbreviation":"ST"},{"name":"Saudi Arabia","abbreviation":"SA"},{"name":"Senegal","abbreviation":"SN"},{"name":"Serbia","abbreviation":"RS"},{"name":"Seychelles","abbreviation":"SC"},{"name":"Sierra Leone","abbreviation":"SL"},{"name":"Singapore","abbreviation":"SG"},{"name":"Sint Maarten","abbreviation":"SX"},{"name":"Slovakia","abbreviation":"SK"},{"name":"Slovenia","abbreviation":"SI"},{"name":"Solomon Islands","abbreviation":"SB"},{"name":"Somalia","abbreviation":"SO"},{"name":"South Africa","abbreviation":"ZA"},{"name":"South Georgia & South Sandwich Islands","abbreviation":"GS"},{"name":"South Korea","abbreviation":"KR"},{"name":"South Sudan","abbreviation":"SS"},{"name":"Spain","abbreviation":"ES"},{"name":"Sri Lanka","abbreviation":"LK"},{"name":"St. Barthélemy","abbreviation":"BL"},{"name":"St. Helena","abbreviation":"SH"},{"name":"St. Kitts & Nevis","abbreviation":"KN"},{"name":"St. Lucia","abbreviation":"LC"},{"name":"St. Martin","abbreviation":"MF"},{"name":"St. Pierre & Miquelon","abbreviation":"PM"},{"name":"St. Vincent & Grenadines","abbreviation":"VC"},{"name":"Sudan","abbreviation":"SD"},{"name":"Suriname","abbreviation":"SR"},{"name":"Svalbard & Jan Mayen","abbreviation":"SJ"},{"name":"Swaziland","abbreviation":"SZ"},{"name":"Sweden","abbreviation":"SE"},{"name":"Switzerland","abbreviation":"CH"},{"name":"Syria","abbreviation":"SY"},{"name":"Taiwan","abbreviation":"TW"},{"name":"Tajikistan","abbreviation":"TJ"},{"name":"Tanzania","abbreviation":"TZ"},{"name":"Thailand","abbreviation":"TH"},{"name":"Timor-Leste","abbreviation":"TL"},{"name":"Togo","abbreviation":"TG"},{"name":"Tokelau","abbreviation":"TK"},{"name":"Tonga","abbreviation":"TO"},{"name":"Trinidad & Tobago","abbreviation":"TT"},{"name":"Tristan da Cunha","abbreviation":"TA"},{"name":"Tunisia","abbreviation":"TN"},{"name":"Turkey","abbreviation":"TR"},{"name":"Turkmenistan","abbreviation":"TM"},{"name":"Turks & Caicos Islands","abbreviation":"TC"},{"name":"Tuvalu","abbreviation":"TV"},{"name":"U.S. Outlying Islands","abbreviation":"UM"},{"name":"U.S. Virgin Islands","abbreviation":"VI"},{"name":"Uganda","abbreviation":"UG"},{"name":"Ukraine","abbreviation":"UA"},{"name":"United Arab Emirates","abbreviation":"AE"},{"name":"United Kingdom","abbreviation":"GB"},{"name":"United States","abbreviation":"US"},{"name":"Uruguay","abbreviation":"UY"},{"name":"Uzbekistan","abbreviation":"UZ"},{"name":"Vanuatu","abbreviation":"VU"},{"name":"Vatican City","abbreviation":"VA"},{"name":"Venezuela","abbreviation":"VE"},{"name":"Vietnam","abbreviation":"VN"},{"name":"Wallis & Futuna","abbreviation":"WF"},{"name":"Western Sahara","abbreviation":"EH"},{"name":"Yemen","abbreviation":"YE"},{"name":"Zambia","abbreviation":"ZM"},{"name":"Zimbabwe","abbreviation":"ZW"}],

                counties: {
            // Data taken from http://www.downloadexcelfiles.com/gb_en/download-excel-file-list-counties-uk
            "uk": [
                {name: 'Bath and North East Somerset'},
                {name: 'Aberdeenshire'},
                {name: 'Anglesey'},
                {name: 'Angus'},
                {name: 'Bedford'},
                {name: 'Blackburn with Darwen'},
                {name: 'Blackpool'},
                {name: 'Bournemouth'},
                {name: 'Bracknell Forest'},
                {name: 'Brighton & Hove'},
                {name: 'Bristol'},
                {name: 'Buckinghamshire'},
                {name: 'Cambridgeshire'},
                {name: 'Carmarthenshire'},
                {name: 'Central Bedfordshire'},
                {name: 'Ceredigion'},
                {name: 'Cheshire East'},
                {name: 'Cheshire West and Chester'},
                {name: 'Clackmannanshire'},
                {name: 'Conwy'},
                {name: 'Cornwall'},
                {name: 'County Antrim'},
                {name: 'County Armagh'},
                {name: 'County Down'},
                {name: 'County Durham'},
                {name: 'County Fermanagh'},
                {name: 'County Londonderry'},
                {name: 'County Tyrone'},
                {name: 'Cumbria'},
                {name: 'Darlington'},
                {name: 'Denbighshire'},
                {name: 'Derby'},
                {name: 'Derbyshire'},
                {name: 'Devon'},
                {name: 'Dorset'},
                {name: 'Dumfries and Galloway'},
                {name: 'Dundee'},
                {name: 'East Lothian'},
                {name: 'East Riding of Yorkshire'},
                {name: 'East Sussex'},
                {name: 'Edinburgh?'},
                {name: 'Essex'},
                {name: 'Falkirk'},
                {name: 'Fife'},
                {name: 'Flintshire'},
                {name: 'Gloucestershire'},
                {name: 'Greater London'},
                {name: 'Greater Manchester'},
                {name: 'Gwent'},
                {name: 'Gwynedd'},
                {name: 'Halton'},
                {name: 'Hampshire'},
                {name: 'Hartlepool'},
                {name: 'Herefordshire'},
                {name: 'Hertfordshire'},
                {name: 'Highlands'},
                {name: 'Hull'},
                {name: 'Isle of Wight'},
                {name: 'Isles of Scilly'},
                {name: 'Kent'},
                {name: 'Lancashire'},
                {name: 'Leicester'},
                {name: 'Leicestershire'},
                {name: 'Lincolnshire'},
                {name: 'Lothian'},
                {name: 'Luton'},
                {name: 'Medway'},
                {name: 'Merseyside'},
                {name: 'Mid Glamorgan'},
                {name: 'Middlesbrough'},
                {name: 'Milton Keynes'},
                {name: 'Monmouthshire'},
                {name: 'Moray'},
                {name: 'Norfolk'},
                {name: 'North East Lincolnshire'},
                {name: 'North Lincolnshire'},
                {name: 'North Somerset'},
                {name: 'North Yorkshire'},
                {name: 'Northamptonshire'},
                {name: 'Northumberland'},
                {name: 'Nottingham'},
                {name: 'Nottinghamshire'},
                {name: 'Oxfordshire'},
                {name: 'Pembrokeshire'},
                {name: 'Perth and Kinross'},
                {name: 'Peterborough'},
                {name: 'Plymouth'},
                {name: 'Poole'},
                {name: 'Portsmouth'},
                {name: 'Powys'},
                {name: 'Reading'},
                {name: 'Redcar and Cleveland'},
                {name: 'Rutland'},
                {name: 'Scottish Borders'},
                {name: 'Shropshire'},
                {name: 'Slough'},
                {name: 'Somerset'},
                {name: 'South Glamorgan'},
                {name: 'South Gloucestershire'},
                {name: 'South Yorkshire'},
                {name: 'Southampton'},
                {name: 'Southend-on-Sea'},
                {name: 'Staffordshire'},
                {name: 'Stirlingshire'},
                {name: 'Stockton-on-Tees'},
                {name: 'Stoke-on-Trent'},
                {name: 'Strathclyde'},
                {name: 'Suffolk'},
                {name: 'Surrey'},
                {name: 'Swindon'},
                {name: 'Telford and Wrekin'},
                {name: 'Thurrock'},
                {name: 'Torbay'},
                {name: 'Tyne and Wear'},
                {name: 'Warrington'},
                {name: 'Warwickshire'},
                {name: 'West Berkshire'},
                {name: 'West Glamorgan'},
                {name: 'West Lothian'},
                {name: 'West Midlands'},
                {name: 'West Sussex'},
                {name: 'West Yorkshire'},
                {name: 'Western Isles'},
                {name: 'Wiltshire'},
                {name: 'Windsor and Maidenhead'},
                {name: 'Wokingham'},
                {name: 'Worcestershire'},
                {name: 'Wrexham'},
                {name: 'York'}]
                                },
        provinces: {
            "ca": [
                {name: 'Alberta', abbreviation: 'AB'},
                {name: 'British Columbia', abbreviation: 'BC'},
                {name: 'Manitoba', abbreviation: 'MB'},
                {name: 'New Brunswick', abbreviation: 'NB'},
                {name: 'Newfoundland and Labrador', abbreviation: 'NL'},
                {name: 'Nova Scotia', abbreviation: 'NS'},
                {name: 'Ontario', abbreviation: 'ON'},
                {name: 'Prince Edward Island', abbreviation: 'PE'},
                {name: 'Quebec', abbreviation: 'QC'},
                {name: 'Saskatchewan', abbreviation: 'SK'},

                // The case could be made that the following are not actually provinces
                // since they are technically considered "territories" however they all
                // look the same on an envelope!
                {name: 'Northwest Territories', abbreviation: 'NT'},
                {name: 'Nunavut', abbreviation: 'NU'},
                {name: 'Yukon', abbreviation: 'YT'}
            ],
            "it": [
                { name: "Agrigento", abbreviation: "AG", code: 84 },
                { name: "Alessandria", abbreviation: "AL", code: 6 },
                { name: "Ancona", abbreviation: "AN", code: 42 },
                { name: "Aosta", abbreviation: "AO", code: 7 },
                { name: "L'Aquila", abbreviation: "AQ", code: 66 },
                { name: "Arezzo", abbreviation: "AR", code: 51 },
                { name: "Ascoli-Piceno", abbreviation: "AP", code: 44 },
                { name: "Asti", abbreviation: "AT", code: 5 },
                { name: "Avellino", abbreviation: "AV", code: 64 },
                { name: "Bari", abbreviation: "BA", code: 72 },
                { name: "Barletta-Andria-Trani", abbreviation: "BT", code: 72 },
                { name: "Belluno", abbreviation: "BL", code: 25 },
                { name: "Benevento", abbreviation: "BN", code: 62 },
                { name: "Bergamo", abbreviation: "BG", code: 16 },
                { name: "Biella", abbreviation: "BI", code: 96 },
                { name: "Bologna", abbreviation: "BO", code: 37 },
                { name: "Bolzano", abbreviation: "BZ", code: 21 },
                { name: "Brescia", abbreviation: "BS", code: 17 },
                { name: "Brindisi", abbreviation: "BR", code: 74 },
                { name: "Cagliari", abbreviation: "CA", code: 92 },
                { name: "Caltanissetta", abbreviation: "CL", code: 85 },
                { name: "Campobasso", abbreviation: "CB", code: 70 },
                { name: "Carbonia Iglesias", abbreviation: "CI", code: 70 },
                { name: "Caserta", abbreviation: "CE", code: 61 },
                { name: "Catania", abbreviation: "CT", code: 87 },
                { name: "Catanzaro", abbreviation: "CZ", code: 79 },
                { name: "Chieti", abbreviation: "CH", code: 69 },
                { name: "Como", abbreviation: "CO", code: 13 },
                { name: "Cosenza", abbreviation: "CS", code: 78 },
                { name: "Cremona", abbreviation: "CR", code: 19 },
                { name: "Crotone", abbreviation: "KR", code: 101 },
                { name: "Cuneo", abbreviation: "CN", code: 4 },
                { name: "Enna", abbreviation: "EN", code: 86 },
                { name: "Fermo", abbreviation: "FM", code: 86 },
                { name: "Ferrara", abbreviation: "FE", code: 38 },
                { name: "Firenze", abbreviation: "FI", code: 48 },
                { name: "Foggia", abbreviation: "FG", code: 71 },
                { name: "Forli-Cesena", abbreviation: "FC", code: 71 },
                { name: "Frosinone", abbreviation: "FR", code: 60 },
                { name: "Genova", abbreviation: "GE", code: 10 },
                { name: "Gorizia", abbreviation: "GO", code: 31 },
                { name: "Grosseto", abbreviation: "GR", code: 53 },
                { name: "Imperia", abbreviation: "IM", code: 8 },
                { name: "Isernia", abbreviation: "IS", code: 94 },
                { name: "La-Spezia", abbreviation: "SP", code: 66 },
                { name: "Latina", abbreviation: "LT", code: 59 },
                { name: "Lecce", abbreviation: "LE", code: 75 },
                { name: "Lecco", abbreviation: "LC", code: 97 },
                { name: "Livorno", abbreviation: "LI", code: 49 },
                { name: "Lodi", abbreviation: "LO", code: 98 },
                { name: "Lucca", abbreviation: "LU", code: 46 },
                { name: "Macerata", abbreviation: "MC", code: 43 },
                { name: "Mantova", abbreviation: "MN", code: 20 },
                { name: "Massa-Carrara", abbreviation: "MS", code: 45 },
                { name: "Matera", abbreviation: "MT", code: 77 },
                { name: "Medio Campidano", abbreviation: "VS", code: 77 },
                { name: "Messina", abbreviation: "ME", code: 83 },
                { name: "Milano", abbreviation: "MI", code: 15 },
                { name: "Modena", abbreviation: "MO", code: 36 },
                { name: "Monza-Brianza", abbreviation: "MB", code: 36 },
                { name: "Napoli", abbreviation: "NA", code: 63 },
                { name: "Novara", abbreviation: "NO", code: 3 },
                { name: "Nuoro", abbreviation: "NU", code: 91 },
                { name: "Ogliastra", abbreviation: "OG", code: 91 },
                { name: "Olbia Tempio", abbreviation: "OT", code: 91 },
                { name: "Oristano", abbreviation: "OR", code: 95 },
                { name: "Padova", abbreviation: "PD", code: 28 },
                { name: "Palermo", abbreviation: "PA", code: 82 },
                { name: "Parma", abbreviation: "PR", code: 34 },
                { name: "Pavia", abbreviation: "PV", code: 18 },
                { name: "Perugia", abbreviation: "PG", code: 54 },
                { name: "Pesaro-Urbino", abbreviation: "PU", code: 41 },
                { name: "Pescara", abbreviation: "PE", code: 68 },
                { name: "Piacenza", abbreviation: "PC", code: 33 },
                { name: "Pisa", abbreviation: "PI", code: 50 },
                { name: "Pistoia", abbreviation: "PT", code: 47 },
                { name: "Pordenone", abbreviation: "PN", code: 93 },
                { name: "Potenza", abbreviation: "PZ", code: 76 },
                { name: "Prato", abbreviation: "PO", code: 100 },
                { name: "Ragusa", abbreviation: "RG", code: 88 },
                { name: "Ravenna", abbreviation: "RA", code: 39 },
                { name: "Reggio-Calabria", abbreviation: "RC", code: 35 },
                { name: "Reggio-Emilia", abbreviation: "RE", code: 35 },
                { name: "Rieti", abbreviation: "RI", code: 57 },
                { name: "Rimini", abbreviation: "RN", code: 99 },
                { name: "Roma", abbreviation: "Roma", code: 58 },
                { name: "Rovigo", abbreviation: "RO", code: 29 },
                { name: "Salerno", abbreviation: "SA", code: 65 },
                { name: "Sassari", abbreviation: "SS", code: 90 },
                { name: "Savona", abbreviation: "SV", code: 9 },
                { name: "Siena", abbreviation: "SI", code: 52 },
                { name: "Siracusa", abbreviation: "SR", code: 89 },
                { name: "Sondrio", abbreviation: "SO", code: 14 },
                { name: "Taranto", abbreviation: "TA", code: 73 },
                { name: "Teramo", abbreviation: "TE", code: 67 },
                { name: "Terni", abbreviation: "TR", code: 55 },
                { name: "Torino", abbreviation: "TO", code: 1 },
                { name: "Trapani", abbreviation: "TP", code: 81 },
                { name: "Trento", abbreviation: "TN", code: 22 },
                { name: "Treviso", abbreviation: "TV", code: 26 },
                { name: "Trieste", abbreviation: "TS", code: 32 },
                { name: "Udine", abbreviation: "UD", code: 30 },
                { name: "Varese", abbreviation: "VA", code: 12 },
                { name: "Venezia", abbreviation: "VE", code: 27 },
                { name: "Verbania", abbreviation: "VB", code: 27 },
                { name: "Vercelli", abbreviation: "VC", code: 2 },
                { name: "Verona", abbreviation: "VR", code: 23 },
                { name: "Vibo-Valentia", abbreviation: "VV", code: 102 },
                { name: "Vicenza", abbreviation: "VI", code: 24 },
                { name: "Viterbo", abbreviation: "VT", code: 56 }
            ]
        },

            // from: https://github.com/samsargent/Useful-Autocomplete-Data/blob/master/data/nationalities.json
        nationalities: [
           {name: 'Afghan'},
           {name: 'Albanian'},
           {name: 'Algerian'},
           {name: 'American'},
           {name: 'Andorran'},
           {name: 'Angolan'},
           {name: 'Antiguans'},
           {name: 'Argentinean'},
           {name: 'Armenian'},
           {name: 'Australian'},
           {name: 'Austrian'},
           {name: 'Azerbaijani'},
           {name: 'Bahami'},
           {name: 'Bahraini'},
           {name: 'Bangladeshi'},
           {name: 'Barbadian'},
           {name: 'Barbudans'},
           {name: 'Batswana'},
           {name: 'Belarusian'},
           {name: 'Belgian'},
           {name: 'Belizean'},
           {name: 'Beninese'},
           {name: 'Bhutanese'},
           {name: 'Bolivian'},
           {name: 'Bosnian'},
           {name: 'Brazilian'},
           {name: 'British'},
           {name: 'Bruneian'},
           {name: 'Bulgarian'},
           {name: 'Burkinabe'},
           {name: 'Burmese'},
           {name: 'Burundian'},
           {name: 'Cambodian'},
           {name: 'Cameroonian'},
           {name: 'Canadian'},
           {name: 'Cape Verdean'},
           {name: 'Central African'},
           {name: 'Chadian'},
           {name: 'Chilean'},
           {name: 'Chinese'},
           {name: 'Colombian'},
           {name: 'Comoran'},
           {name: 'Congolese'},
           {name: 'Costa Rican'},
           {name: 'Croatian'},
           {name: 'Cuban'},
           {name: 'Cypriot'},
           {name: 'Czech'},
           {name: 'Danish'},
           {name: 'Djibouti'},
           {name: 'Dominican'},
           {name: 'Dutch'},
           {name: 'East Timorese'},
           {name: 'Ecuadorean'},
           {name: 'Egyptian'},
           {name: 'Emirian'},
           {name: 'Equatorial Guinean'},
           {name: 'Eritrean'},
           {name: 'Estonian'},
           {name: 'Ethiopian'},
           {name: 'Fijian'},
           {name: 'Filipino'},
           {name: 'Finnish'},
           {name: 'French'},
           {name: 'Gabonese'},
           {name: 'Gambian'},
           {name: 'Georgian'},
           {name: 'German'},
           {name: 'Ghanaian'},
           {name: 'Greek'},
           {name: 'Grenadian'},
           {name: 'Guatemalan'},
           {name: 'Guinea-Bissauan'},
           {name: 'Guinean'},
           {name: 'Guyanese'},
           {name: 'Haitian'},
           {name: 'Herzegovinian'},
           {name: 'Honduran'},
           {name: 'Hungarian'},
           {name: 'I-Kiribati'},
           {name: 'Icelander'},
           {name: 'Indian'},
           {name: 'Indonesian'},
           {name: 'Iranian'},
           {name: 'Iraqi'},
           {name: 'Irish'},
           {name: 'Israeli'},
           {name: 'Italian'},
           {name: 'Ivorian'},
           {name: 'Jamaican'},
           {name: 'Japanese'},
           {name: 'Jordanian'},
           {name: 'Kazakhstani'},
           {name: 'Kenyan'},
           {name: 'Kittian and Nevisian'},
           {name: 'Kuwaiti'},
           {name: 'Kyrgyz'},
           {name: 'Laotian'},
           {name: 'Latvian'},
           {name: 'Lebanese'},
           {name: 'Liberian'},
           {name: 'Libyan'},
           {name: 'Liechtensteiner'},
           {name: 'Lithuanian'},
           {name: 'Luxembourger'},
           {name: 'Macedonian'},
           {name: 'Malagasy'},
           {name: 'Malawian'},
           {name: 'Malaysian'},
           {name: 'Maldivan'},
           {name: 'Malian'},
           {name: 'Maltese'},
           {name: 'Marshallese'},
           {name: 'Mauritanian'},
           {name: 'Mauritian'},
           {name: 'Mexican'},
           {name: 'Micronesian'},
           {name: 'Moldovan'},
           {name: 'Monacan'},
           {name: 'Mongolian'},
           {name: 'Moroccan'},
           {name: 'Mosotho'},
           {name: 'Motswana'},
           {name: 'Mozambican'},
           {name: 'Namibian'},
           {name: 'Nauruan'},
           {name: 'Nepalese'},
           {name: 'New Zealander'},
           {name: 'Nicaraguan'},
           {name: 'Nigerian'},
           {name: 'Nigerien'},
           {name: 'North Korean'},
           {name: 'Northern Irish'},
           {name: 'Norwegian'},
           {name: 'Omani'},
           {name: 'Pakistani'},
           {name: 'Palauan'},
           {name: 'Panamanian'},
           {name: 'Papua New Guinean'},
           {name: 'Paraguayan'},
           {name: 'Peruvian'},
           {name: 'Polish'},
           {name: 'Portuguese'},
           {name: 'Qatari'},
           {name: 'Romani'},
           {name: 'Russian'},
           {name: 'Rwandan'},
           {name: 'Saint Lucian'},
           {name: 'Salvadoran'},
           {name: 'Samoan'},
           {name: 'San Marinese'},
           {name: 'Sao Tomean'},
           {name: 'Saudi'},
           {name: 'Scottish'},
           {name: 'Senegalese'},
           {name: 'Serbian'},
           {name: 'Seychellois'},
           {name: 'Sierra Leonean'},
           {name: 'Singaporean'},
           {name: 'Slovakian'},
           {name: 'Slovenian'},
           {name: 'Solomon Islander'},
           {name: 'Somali'},
           {name: 'South African'},
           {name: 'South Korean'},
           {name: 'Spanish'},
           {name: 'Sri Lankan'},
           {name: 'Sudanese'},
           {name: 'Surinamer'},
           {name: 'Swazi'},
           {name: 'Swedish'},
           {name: 'Swiss'},
           {name: 'Syrian'},
           {name: 'Taiwanese'},
           {name: 'Tajik'},
           {name: 'Tanzanian'},
           {name: 'Thai'},
           {name: 'Togolese'},
           {name: 'Tongan'},
           {name: 'Trinidadian or Tobagonian'},
           {name: 'Tunisian'},
           {name: 'Turkish'},
           {name: 'Tuvaluan'},
           {name: 'Ugandan'},
           {name: 'Ukrainian'},
           {name: 'Uruguaya'},
           {name: 'Uzbekistani'},
           {name: 'Venezuela'},
           {name: 'Vietnamese'},
           {name: 'Wels'},
           {name: 'Yemenit'},
           {name: 'Zambia'},
           {name: 'Zimbabwe'},
        ],
          // http://www.loc.gov/standards/iso639-2/php/code_list.php (ISO-639-1 codes)
        locale_languages: [
          "aa",
          "ab",
          "ae",
          "af",
          "ak",
          "am",
          "an",
          "ar",
          "as",
          "av",
          "ay",
          "az",
          "ba",
          "be",
          "bg",
          "bh",
          "bi",
          "bm",
          "bn",
          "bo",
          "br",
          "bs",
          "ca",
          "ce",
          "ch",
          "co",
          "cr",
          "cs",
          "cu",
          "cv",
          "cy",
          "da",
          "de",
          "dv",
          "dz",
          "ee",
          "el",
          "en",
          "eo",
          "es",
          "et",
          "eu",
          "fa",
          "ff",
          "fi",
          "fj",
          "fo",
          "fr",
          "fy",
          "ga",
          "gd",
          "gl",
          "gn",
          "gu",
          "gv",
          "ha",
          "he",
          "hi",
          "ho",
          "hr",
          "ht",
          "hu",
          "hy",
          "hz",
          "ia",
          "id",
          "ie",
          "ig",
          "ii",
          "ik",
          "io",
          "is",
          "it",
          "iu",
          "ja",
          "jv",
          "ka",
          "kg",
          "ki",
          "kj",
          "kk",
          "kl",
          "km",
          "kn",
          "ko",
          "kr",
          "ks",
          "ku",
          "kv",
          "kw",
          "ky",
          "la",
          "lb",
          "lg",
          "li",
          "ln",
          "lo",
          "lt",
          "lu",
          "lv",
          "mg",
          "mh",
          "mi",
          "mk",
          "ml",
          "mn",
          "mr",
          "ms",
          "mt",
          "my",
          "na",
          "nb",
          "nd",
          "ne",
          "ng",
          "nl",
          "nn",
          "no",
          "nr",
          "nv",
          "ny",
          "oc",
          "oj",
          "om",
          "or",
          "os",
          "pa",
          "pi",
          "pl",
          "ps",
          "pt",
          "qu",
          "rm",
          "rn",
          "ro",
          "ru",
          "rw",
          "sa",
          "sc",
          "sd",
          "se",
          "sg",
          "si",
          "sk",
          "sl",
          "sm",
          "sn",
          "so",
          "sq",
          "sr",
          "ss",
          "st",
          "su",
          "sv",
          "sw",
          "ta",
          "te",
          "tg",
          "th",
          "ti",
          "tk",
          "tl",
          "tn",
          "to",
          "tr",
          "ts",
          "tt",
          "tw",
          "ty",
          "ug",
          "uk",
          "ur",
          "uz",
          "ve",
          "vi",
          "vo",
          "wa",
          "wo",
          "xh",
          "yi",
          "yo",
          "za",
          "zh",
          "zu"
        ],

        // From http://data.okfn.org/data/core/language-codes#resource-language-codes-full (IETF language tags)
        locale_regions: [
          "agq-CM",
          "asa-TZ",
          "ast-ES",
          "bas-CM",
          "bem-ZM",
          "bez-TZ",
          "brx-IN",
          "cgg-UG",
          "chr-US",
          "dav-KE",
          "dje-NE",
          "dsb-DE",
          "dua-CM",
          "dyo-SN",
          "ebu-KE",
          "ewo-CM",
          "fil-PH",
          "fur-IT",
          "gsw-CH",
          "gsw-FR",
          "gsw-LI",
          "guz-KE",
          "haw-US",
          "hsb-DE",
          "jgo-CM",
          "jmc-TZ",
          "kab-DZ",
          "kam-KE",
          "kde-TZ",
          "kea-CV",
          "khq-ML",
          "kkj-CM",
          "kln-KE",
          "kok-IN",
          "ksb-TZ",
          "ksf-CM",
          "ksh-DE",
          "lag-TZ",
          "lkt-US",
          "luo-KE",
          "luy-KE",
          "mas-KE",
          "mas-TZ",
          "mer-KE",
          "mfe-MU",
          "mgh-MZ",
          "mgo-CM",
          "mua-CM",
          "naq-NA",
          "nmg-CM",
          "nnh-CM",
          "nus-SD",
          "nyn-UG",
          "rof-TZ",
          "rwk-TZ",
          "sah-RU",
          "saq-KE",
          "sbp-TZ",
          "seh-MZ",
          "ses-ML",
          "shi-Latn",
          "shi-Latn-MA",
          "shi-Tfng",
          "shi-Tfng-MA",
          "smn-FI",
          "teo-KE",
          "teo-UG",
          "twq-NE",
          "tzm-Latn",
          "tzm-Latn-MA",
          "vai-Latn",
          "vai-Latn-LR",
          "vai-Vaii",
          "vai-Vaii-LR",
          "vun-TZ",
          "wae-CH",
          "xog-UG",
          "yav-CM",
          "zgh-MA",
          "af-NA",
          "af-ZA",
          "ak-GH",
          "am-ET",
          "ar-001",
          "ar-AE",
          "ar-BH",
          "ar-DJ",
          "ar-DZ",
          "ar-EG",
          "ar-EH",
          "ar-ER",
          "ar-IL",
          "ar-IQ",
          "ar-JO",
          "ar-KM",
          "ar-KW",
          "ar-LB",
          "ar-LY",
          "ar-MA",
          "ar-MR",
          "ar-OM",
          "ar-PS",
          "ar-QA",
          "ar-SA",
          "ar-SD",
          "ar-SO",
          "ar-SS",
          "ar-SY",
          "ar-TD",
          "ar-TN",
          "ar-YE",
          "as-IN",
          "az-Cyrl",
          "az-Cyrl-AZ",
          "az-Latn",
          "az-Latn-AZ",
          "be-BY",
          "bg-BG",
          "bm-Latn",
          "bm-Latn-ML",
          "bn-BD",
          "bn-IN",
          "bo-CN",
          "bo-IN",
          "br-FR",
          "bs-Cyrl",
          "bs-Cyrl-BA",
          "bs-Latn",
          "bs-Latn-BA",
          "ca-AD",
          "ca-ES",
          "ca-ES-VALENCIA",
          "ca-FR",
          "ca-IT",
          "cs-CZ",
          "cy-GB",
          "da-DK",
          "da-GL",
          "de-AT",
          "de-BE",
          "de-CH",
          "de-DE",
          "de-LI",
          "de-LU",
          "dz-BT",
          "ee-GH",
          "ee-TG",
          "el-CY",
          "el-GR",
          "en-001",
          "en-150",
          "en-AG",
          "en-AI",
          "en-AS",
          "en-AU",
          "en-BB",
          "en-BE",
          "en-BM",
          "en-BS",
          "en-BW",
          "en-BZ",
          "en-CA",
          "en-CC",
          "en-CK",
          "en-CM",
          "en-CX",
          "en-DG",
          "en-DM",
          "en-ER",
          "en-FJ",
          "en-FK",
          "en-FM",
          "en-GB",
          "en-GD",
          "en-GG",
          "en-GH",
          "en-GI",
          "en-GM",
          "en-GU",
          "en-GY",
          "en-HK",
          "en-IE",
          "en-IM",
          "en-IN",
          "en-IO",
          "en-JE",
          "en-JM",
          "en-KE",
          "en-KI",
          "en-KN",
          "en-KY",
          "en-LC",
          "en-LR",
          "en-LS",
          "en-MG",
          "en-MH",
          "en-MO",
          "en-MP",
          "en-MS",
          "en-MT",
          "en-MU",
          "en-MW",
          "en-MY",
          "en-NA",
          "en-NF",
          "en-NG",
          "en-NR",
          "en-NU",
          "en-NZ",
          "en-PG",
          "en-PH",
          "en-PK",
          "en-PN",
          "en-PR",
          "en-PW",
          "en-RW",
          "en-SB",
          "en-SC",
          "en-SD",
          "en-SG",
          "en-SH",
          "en-SL",
          "en-SS",
          "en-SX",
          "en-SZ",
          "en-TC",
          "en-TK",
          "en-TO",
          "en-TT",
          "en-TV",
          "en-TZ",
          "en-UG",
          "en-UM",
          "en-US",
          "en-US-POSIX",
          "en-VC",
          "en-VG",
          "en-VI",
          "en-VU",
          "en-WS",
          "en-ZA",
          "en-ZM",
          "en-ZW",
          "eo-001",
          "es-419",
          "es-AR",
          "es-BO",
          "es-CL",
          "es-CO",
          "es-CR",
          "es-CU",
          "es-DO",
          "es-EA",
          "es-EC",
          "es-ES",
          "es-GQ",
          "es-GT",
          "es-HN",
          "es-IC",
          "es-MX",
          "es-NI",
          "es-PA",
          "es-PE",
          "es-PH",
          "es-PR",
          "es-PY",
          "es-SV",
          "es-US",
          "es-UY",
          "es-VE",
          "et-EE",
          "eu-ES",
          "fa-AF",
          "fa-IR",
          "ff-CM",
          "ff-GN",
          "ff-MR",
          "ff-SN",
          "fi-FI",
          "fo-FO",
          "fr-BE",
          "fr-BF",
          "fr-BI",
          "fr-BJ",
          "fr-BL",
          "fr-CA",
          "fr-CD",
          "fr-CF",
          "fr-CG",
          "fr-CH",
          "fr-CI",
          "fr-CM",
          "fr-DJ",
          "fr-DZ",
          "fr-FR",
          "fr-GA",
          "fr-GF",
          "fr-GN",
          "fr-GP",
          "fr-GQ",
          "fr-HT",
          "fr-KM",
          "fr-LU",
          "fr-MA",
          "fr-MC",
          "fr-MF",
          "fr-MG",
          "fr-ML",
          "fr-MQ",
          "fr-MR",
          "fr-MU",
          "fr-NC",
          "fr-NE",
          "fr-PF",
          "fr-PM",
          "fr-RE",
          "fr-RW",
          "fr-SC",
          "fr-SN",
          "fr-SY",
          "fr-TD",
          "fr-TG",
          "fr-TN",
          "fr-VU",
          "fr-WF",
          "fr-YT",
          "fy-NL",
          "ga-IE",
          "gd-GB",
          "gl-ES",
          "gu-IN",
          "gv-IM",
          "ha-Latn",
          "ha-Latn-GH",
          "ha-Latn-NE",
          "ha-Latn-NG",
          "he-IL",
          "hi-IN",
          "hr-BA",
          "hr-HR",
          "hu-HU",
          "hy-AM",
          "id-ID",
          "ig-NG",
          "ii-CN",
          "is-IS",
          "it-CH",
          "it-IT",
          "it-SM",
          "ja-JP",
          "ka-GE",
          "ki-KE",
          "kk-Cyrl",
          "kk-Cyrl-KZ",
          "kl-GL",
          "km-KH",
          "kn-IN",
          "ko-KP",
          "ko-KR",
          "ks-Arab",
          "ks-Arab-IN",
          "kw-GB",
          "ky-Cyrl",
          "ky-Cyrl-KG",
          "lb-LU",
          "lg-UG",
          "ln-AO",
          "ln-CD",
          "ln-CF",
          "ln-CG",
          "lo-LA",
          "lt-LT",
          "lu-CD",
          "lv-LV",
          "mg-MG",
          "mk-MK",
          "ml-IN",
          "mn-Cyrl",
          "mn-Cyrl-MN",
          "mr-IN",
          "ms-Latn",
          "ms-Latn-BN",
          "ms-Latn-MY",
          "ms-Latn-SG",
          "mt-MT",
          "my-MM",
          "nb-NO",
          "nb-SJ",
          "nd-ZW",
          "ne-IN",
          "ne-NP",
          "nl-AW",
          "nl-BE",
          "nl-BQ",
          "nl-CW",
          "nl-NL",
          "nl-SR",
          "nl-SX",
          "nn-NO",
          "om-ET",
          "om-KE",
          "or-IN",
          "os-GE",
          "os-RU",
          "pa-Arab",
          "pa-Arab-PK",
          "pa-Guru",
          "pa-Guru-IN",
          "pl-PL",
          "ps-AF",
          "pt-AO",
          "pt-BR",
          "pt-CV",
          "pt-GW",
          "pt-MO",
          "pt-MZ",
          "pt-PT",
          "pt-ST",
          "pt-TL",
          "qu-BO",
          "qu-EC",
          "qu-PE",
          "rm-CH",
          "rn-BI",
          "ro-MD",
          "ro-RO",
          "ru-BY",
          "ru-KG",
          "ru-KZ",
          "ru-MD",
          "ru-RU",
          "ru-UA",
          "rw-RW",
          "se-FI",
          "se-NO",
          "se-SE",
          "sg-CF",
          "si-LK",
          "sk-SK",
          "sl-SI",
          "sn-ZW",
          "so-DJ",
          "so-ET",
          "so-KE",
          "so-SO",
          "sq-AL",
          "sq-MK",
          "sq-XK",
          "sr-Cyrl",
          "sr-Cyrl-BA",
          "sr-Cyrl-ME",
          "sr-Cyrl-RS",
          "sr-Cyrl-XK",
          "sr-Latn",
          "sr-Latn-BA",
          "sr-Latn-ME",
          "sr-Latn-RS",
          "sr-Latn-XK",
          "sv-AX",
          "sv-FI",
          "sv-SE",
          "sw-CD",
          "sw-KE",
          "sw-TZ",
          "sw-UG",
          "ta-IN",
          "ta-LK",
          "ta-MY",
          "ta-SG",
          "te-IN",
          "th-TH",
          "ti-ER",
          "ti-ET",
          "to-TO",
          "tr-CY",
          "tr-TR",
          "ug-Arab",
          "ug-Arab-CN",
          "uk-UA",
          "ur-IN",
          "ur-PK",
          "uz-Arab",
          "uz-Arab-AF",
          "uz-Cyrl",
          "uz-Cyrl-UZ",
          "uz-Latn",
          "uz-Latn-UZ",
          "vi-VN",
          "yi-001",
          "yo-BJ",
          "yo-NG",
          "zh-Hans",
          "zh-Hans-CN",
          "zh-Hans-HK",
          "zh-Hans-MO",
          "zh-Hans-SG",
          "zh-Hant",
          "zh-Hant-HK",
          "zh-Hant-MO",
          "zh-Hant-TW",
          "zu-ZA"
        ],

        us_states_and_dc: [
            {name: 'Alabama', abbreviation: 'AL'},
            {name: 'Alaska', abbreviation: 'AK'},
            {name: 'Arizona', abbreviation: 'AZ'},
            {name: 'Arkansas', abbreviation: 'AR'},
            {name: 'California', abbreviation: 'CA'},
            {name: 'Colorado', abbreviation: 'CO'},
            {name: 'Connecticut', abbreviation: 'CT'},
            {name: 'Delaware', abbreviation: 'DE'},
            {name: 'District of Columbia', abbreviation: 'DC'},
            {name: 'Florida', abbreviation: 'FL'},
            {name: 'Georgia', abbreviation: 'GA'},
            {name: 'Hawaii', abbreviation: 'HI'},
            {name: 'Idaho', abbreviation: 'ID'},
            {name: 'Illinois', abbreviation: 'IL'},
            {name: 'Indiana', abbreviation: 'IN'},
            {name: 'Iowa', abbreviation: 'IA'},
            {name: 'Kansas', abbreviation: 'KS'},
            {name: 'Kentucky', abbreviation: 'KY'},
            {name: 'Louisiana', abbreviation: 'LA'},
            {name: 'Maine', abbreviation: 'ME'},
            {name: 'Maryland', abbreviation: 'MD'},
            {name: 'Massachusetts', abbreviation: 'MA'},
            {name: 'Michigan', abbreviation: 'MI'},
            {name: 'Minnesota', abbreviation: 'MN'},
            {name: 'Mississippi', abbreviation: 'MS'},
            {name: 'Missouri', abbreviation: 'MO'},
            {name: 'Montana', abbreviation: 'MT'},
            {name: 'Nebraska', abbreviation: 'NE'},
            {name: 'Nevada', abbreviation: 'NV'},
            {name: 'New Hampshire', abbreviation: 'NH'},
            {name: 'New Jersey', abbreviation: 'NJ'},
            {name: 'New Mexico', abbreviation: 'NM'},
            {name: 'New York', abbreviation: 'NY'},
            {name: 'North Carolina', abbreviation: 'NC'},
            {name: 'North Dakota', abbreviation: 'ND'},
            {name: 'Ohio', abbreviation: 'OH'},
            {name: 'Oklahoma', abbreviation: 'OK'},
            {name: 'Oregon', abbreviation: 'OR'},
            {name: 'Pennsylvania', abbreviation: 'PA'},
            {name: 'Rhode Island', abbreviation: 'RI'},
            {name: 'South Carolina', abbreviation: 'SC'},
            {name: 'South Dakota', abbreviation: 'SD'},
            {name: 'Tennessee', abbreviation: 'TN'},
            {name: 'Texas', abbreviation: 'TX'},
            {name: 'Utah', abbreviation: 'UT'},
            {name: 'Vermont', abbreviation: 'VT'},
            {name: 'Virginia', abbreviation: 'VA'},
            {name: 'Washington', abbreviation: 'WA'},
            {name: 'West Virginia', abbreviation: 'WV'},
            {name: 'Wisconsin', abbreviation: 'WI'},
            {name: 'Wyoming', abbreviation: 'WY'}
        ],

        territories: [
            {name: 'American Samoa', abbreviation: 'AS'},
            {name: 'Federated States of Micronesia', abbreviation: 'FM'},
            {name: 'Guam', abbreviation: 'GU'},
            {name: 'Marshall Islands', abbreviation: 'MH'},
            {name: 'Northern Mariana Islands', abbreviation: 'MP'},
            {name: 'Puerto Rico', abbreviation: 'PR'},
            {name: 'Virgin Islands, U.S.', abbreviation: 'VI'}
        ],

        armed_forces: [
            {name: 'Armed Forces Europe', abbreviation: 'AE'},
            {name: 'Armed Forces Pacific', abbreviation: 'AP'},
            {name: 'Armed Forces the Americas', abbreviation: 'AA'}
        ],

        country_regions: {
            it: [
                { name: "Valle d'Aosta", abbreviation: "VDA" },
                { name: "Piemonte", abbreviation: "PIE" },
                { name: "Lombardia", abbreviation: "LOM" },
                { name: "Veneto", abbreviation: "VEN" },
                { name: "Trentino Alto Adige", abbreviation: "TAA" },
                { name: "Friuli Venezia Giulia", abbreviation: "FVG" },
                { name: "Liguria", abbreviation: "LIG" },
                { name: "Emilia Romagna", abbreviation: "EMR" },
                { name: "Toscana", abbreviation: "TOS" },
                { name: "Umbria", abbreviation: "UMB" },
                { name: "Marche", abbreviation: "MAR" },
                { name: "Abruzzo", abbreviation: "ABR" },
                { name: "Lazio", abbreviation: "LAZ" },
                { name: "Campania", abbreviation: "CAM" },
                { name: "Puglia", abbreviation: "PUG" },
                { name: "Basilicata", abbreviation: "BAS" },
                { name: "Molise", abbreviation: "MOL" },
                { name: "Calabria", abbreviation: "CAL" },
                { name: "Sicilia", abbreviation: "SIC" },
                { name: "Sardegna", abbreviation: "SAR" }
            ]
        },

        street_suffixes: {
            'us': [
                {name: 'Avenue', abbreviation: 'Ave'},
                {name: 'Boulevard', abbreviation: 'Blvd'},
                {name: 'Center', abbreviation: 'Ctr'},
                {name: 'Circle', abbreviation: 'Cir'},
                {name: 'Court', abbreviation: 'Ct'},
                {name: 'Drive', abbreviation: 'Dr'},
                {name: 'Extension', abbreviation: 'Ext'},
                {name: 'Glen', abbreviation: 'Gln'},
                {name: 'Grove', abbreviation: 'Grv'},
                {name: 'Heights', abbreviation: 'Hts'},
                {name: 'Highway', abbreviation: 'Hwy'},
                {name: 'Junction', abbreviation: 'Jct'},
                {name: 'Key', abbreviation: 'Key'},
                {name: 'Lane', abbreviation: 'Ln'},
                {name: 'Loop', abbreviation: 'Loop'},
                {name: 'Manor', abbreviation: 'Mnr'},
                {name: 'Mill', abbreviation: 'Mill'},
                {name: 'Park', abbreviation: 'Park'},
                {name: 'Parkway', abbreviation: 'Pkwy'},
                {name: 'Pass', abbreviation: 'Pass'},
                {name: 'Path', abbreviation: 'Path'},
                {name: 'Pike', abbreviation: 'Pike'},
                {name: 'Place', abbreviation: 'Pl'},
                {name: 'Plaza', abbreviation: 'Plz'},
                {name: 'Point', abbreviation: 'Pt'},
                {name: 'Ridge', abbreviation: 'Rdg'},
                {name: 'River', abbreviation: 'Riv'},
                {name: 'Road', abbreviation: 'Rd'},
                {name: 'Square', abbreviation: 'Sq'},
                {name: 'Street', abbreviation: 'St'},
                {name: 'Terrace', abbreviation: 'Ter'},
                {name: 'Trail', abbreviation: 'Trl'},
                {name: 'Turnpike', abbreviation: 'Tpke'},
                {name: 'View', abbreviation: 'Vw'},
                {name: 'Way', abbreviation: 'Way'}
            ],
            'it': [
                { name: 'Accesso', abbreviation: 'Acc.' },
                { name: 'Alzaia', abbreviation: 'Alz.' },
                { name: 'Arco', abbreviation: 'Arco' },
                { name: 'Archivolto', abbreviation: 'Acv.' },
                { name: 'Arena', abbreviation: 'Arena' },
                { name: 'Argine', abbreviation: 'Argine' },
                { name: 'Bacino', abbreviation: 'Bacino' },
                { name: 'Banchi', abbreviation: 'Banchi' },
                { name: 'Banchina', abbreviation: 'Ban.' },
                { name: 'Bastioni', abbreviation: 'Bas.' },
                { name: 'Belvedere', abbreviation: 'Belv.' },
                { name: 'Borgata', abbreviation: 'B.ta' },
                { name: 'Borgo', abbreviation: 'B.go' },
                { name: 'Calata', abbreviation: 'Cal.' },
                { name: 'Calle', abbreviation: 'Calle' },
                { name: 'Campiello', abbreviation: 'Cam.' },
                { name: 'Campo', abbreviation: 'Cam.' },
                { name: 'Canale', abbreviation: 'Can.' },
                { name: 'Carraia', abbreviation: 'Carr.' },
                { name: 'Cascina', abbreviation: 'Cascina' },
                { name: 'Case sparse', abbreviation: 'c.s.' },
                { name: 'Cavalcavia', abbreviation: 'Cv.' },
                { name: 'Circonvallazione', abbreviation: 'Cv.' },
                { name: 'Complanare', abbreviation: 'C.re' },
                { name: 'Contrada', abbreviation: 'C.da' },
                { name: 'Corso', abbreviation: 'C.so' },
                { name: 'Corte', abbreviation: 'C.te' },
                { name: 'Cortile', abbreviation: 'C.le' },
                { name: 'Diramazione', abbreviation: 'Dir.' },
                { name: 'Fondaco', abbreviation: 'F.co' },
                { name: 'Fondamenta', abbreviation: 'F.ta' },
                { name: 'Fondo', abbreviation: 'F.do' },
                { name: 'Frazione', abbreviation: 'Fr.' },
                { name: 'Isola', abbreviation: 'Is.' },
                { name: 'Largo', abbreviation: 'L.go' },
                { name: 'Litoranea', abbreviation: 'Lit.' },
                { name: 'Lungolago', abbreviation: 'L.go lago' },
                { name: 'Lungo Po', abbreviation: 'l.go Po' },
                { name: 'Molo', abbreviation: 'Molo' },
                { name: 'Mura', abbreviation: 'Mura' },
                { name: 'Passaggio privato', abbreviation: 'pass. priv.' },
                { name: 'Passeggiata', abbreviation: 'Pass.' },
                { name: 'Piazza', abbreviation: 'P.zza' },
                { name: 'Piazzale', abbreviation: 'P.le' },
                { name: 'Ponte', abbreviation: 'P.te' },
                { name: 'Portico', abbreviation: 'P.co' },
                { name: 'Rampa', abbreviation: 'Rampa' },
                { name: 'Regione', abbreviation: 'Reg.' },
                { name: 'Rione', abbreviation: 'R.ne' },
                { name: 'Rio', abbreviation: 'Rio' },
                { name: 'Ripa', abbreviation: 'Ripa' },
                { name: 'Riva', abbreviation: 'Riva' },
                { name: 'Rondò', abbreviation: 'Rondò' },
                { name: 'Rotonda', abbreviation: 'Rot.' },
                { name: 'Sagrato', abbreviation: 'Sagr.' },
                { name: 'Salita', abbreviation: 'Sal.' },
                { name: 'Scalinata', abbreviation: 'Scal.' },
                { name: 'Scalone', abbreviation: 'Scal.' },
                { name: 'Slargo', abbreviation: 'Sl.' },
                { name: 'Sottoportico', abbreviation: 'Sott.' },
                { name: 'Strada', abbreviation: 'Str.' },
                { name: 'Stradale', abbreviation: 'Str.le' },
                { name: 'Strettoia', abbreviation: 'Strett.' },
                { name: 'Traversa', abbreviation: 'Trav.' },
                { name: 'Via', abbreviation: 'V.' },
                { name: 'Viale', abbreviation: 'V.le' },
                { name: 'Vicinale', abbreviation: 'Vic.le' },
                { name: 'Vicolo', abbreviation: 'Vic.' }
            ],
            'uk' : [
                {name: 'Avenue', abbreviation: 'Ave'},
                {name: 'Close', abbreviation: 'Cl'},
                {name: 'Court', abbreviation: 'Ct'},
                {name: 'Crescent', abbreviation: 'Cr'},
                {name: 'Drive', abbreviation: 'Dr'},
                {name: 'Garden', abbreviation: 'Gdn'},
                {name: 'Gardens', abbreviation: 'Gdns'},
                {name: 'Green', abbreviation: 'Gn'},
                {name: 'Grove', abbreviation: 'Gr'},
                {name: 'Lane', abbreviation: 'Ln'},
                {name: 'Mount', abbreviation: 'Mt'},
                {name: 'Place', abbreviation: 'Pl'},
                {name: 'Park', abbreviation: 'Pk'},
                {name: 'Ridge', abbreviation: 'Rdg'},
                {name: 'Road', abbreviation: 'Rd'},
                {name: 'Square', abbreviation: 'Sq'},
                {name: 'Street', abbreviation: 'St'},
                {name: 'Terrace', abbreviation: 'Ter'},
                {name: 'Valley', abbreviation: 'Val'}
            ]
        },

        months: [
            {name: 'January', short_name: 'Jan', numeric: '01', days: 31},
            // Not messing with leap years...
            {name: 'February', short_name: 'Feb', numeric: '02', days: 28},
            {name: 'March', short_name: 'Mar', numeric: '03', days: 31},
            {name: 'April', short_name: 'Apr', numeric: '04', days: 30},
            {name: 'May', short_name: 'May', numeric: '05', days: 31},
            {name: 'June', short_name: 'Jun', numeric: '06', days: 30},
            {name: 'July', short_name: 'Jul', numeric: '07', days: 31},
            {name: 'August', short_name: 'Aug', numeric: '08', days: 31},
            {name: 'September', short_name: 'Sep', numeric: '09', days: 30},
            {name: 'October', short_name: 'Oct', numeric: '10', days: 31},
            {name: 'November', short_name: 'Nov', numeric: '11', days: 30},
            {name: 'December', short_name: 'Dec', numeric: '12', days: 31}
        ],

        // http://en.wikipedia.org/wiki/Bank_card_number#Issuer_identification_number_.28IIN.29
        cc_types: [
            {name: "American Express", short_name: 'amex', prefix: '34', length: 15},
            {name: "Bankcard", short_name: 'bankcard', prefix: '5610', length: 16},
            {name: "China UnionPay", short_name: 'chinaunion', prefix: '62', length: 16},
            {name: "Diners Club Carte Blanche", short_name: 'dccarte', prefix: '300', length: 14},
            {name: "Diners Club enRoute", short_name: 'dcenroute', prefix: '2014', length: 15},
            {name: "Diners Club International", short_name: 'dcintl', prefix: '36', length: 14},
            {name: "Diners Club United States & Canada", short_name: 'dcusc', prefix: '54', length: 16},
            {name: "Discover Card", short_name: 'discover', prefix: '6011', length: 16},
            {name: "InstaPayment", short_name: 'instapay', prefix: '637', length: 16},
            {name: "JCB", short_name: 'jcb', prefix: '3528', length: 16},
            {name: "Laser", short_name: 'laser', prefix: '6304', length: 16},
            {name: "Maestro", short_name: 'maestro', prefix: '5018', length: 16},
            {name: "Mastercard", short_name: 'mc', prefix: '51', length: 16},
            {name: "Solo", short_name: 'solo', prefix: '6334', length: 16},
            {name: "Switch", short_name: 'switch', prefix: '4903', length: 16},
            {name: "Visa", short_name: 'visa', prefix: '4', length: 16},
            {name: "Visa Electron", short_name: 'electron', prefix: '4026', length: 16}
        ],

        //return all world currency by ISO 4217
        currency_types: [
            {'code' : 'AED', 'name' : 'United Arab Emirates Dirham'},
            {'code' : 'AFN', 'name' : 'Afghanistan Afghani'},
            {'code' : 'ALL', 'name' : 'Albania Lek'},
            {'code' : 'AMD', 'name' : 'Armenia Dram'},
            {'code' : 'ANG', 'name' : 'Netherlands Antilles Guilder'},
            {'code' : 'AOA', 'name' : 'Angola Kwanza'},
            {'code' : 'ARS', 'name' : 'Argentina Peso'},
            {'code' : 'AUD', 'name' : 'Australia Dollar'},
            {'code' : 'AWG', 'name' : 'Aruba Guilder'},
            {'code' : 'AZN', 'name' : 'Azerbaijan New Manat'},
            {'code' : 'BAM', 'name' : 'Bosnia and Herzegovina Convertible Marka'},
            {'code' : 'BBD', 'name' : 'Barbados Dollar'},
            {'code' : 'BDT', 'name' : 'Bangladesh Taka'},
            {'code' : 'BGN', 'name' : 'Bulgaria Lev'},
            {'code' : 'BHD', 'name' : 'Bahrain Dinar'},
            {'code' : 'BIF', 'name' : 'Burundi Franc'},
            {'code' : 'BMD', 'name' : 'Bermuda Dollar'},
            {'code' : 'BND', 'name' : 'Brunei Darussalam Dollar'},
            {'code' : 'BOB', 'name' : 'Bolivia Boliviano'},
            {'code' : 'BRL', 'name' : 'Brazil Real'},
            {'code' : 'BSD', 'name' : 'Bahamas Dollar'},
            {'code' : 'BTN', 'name' : 'Bhutan Ngultrum'},
            {'code' : 'BWP', 'name' : 'Botswana Pula'},
            {'code' : 'BYR', 'name' : 'Belarus Ruble'},
            {'code' : 'BZD', 'name' : 'Belize Dollar'},
            {'code' : 'CAD', 'name' : 'Canada Dollar'},
            {'code' : 'CDF', 'name' : 'Congo/Kinshasa Franc'},
            {'code' : 'CHF', 'name' : 'Switzerland Franc'},
            {'code' : 'CLP', 'name' : 'Chile Peso'},
            {'code' : 'CNY', 'name' : 'China Yuan Renminbi'},
            {'code' : 'COP', 'name' : 'Colombia Peso'},
            {'code' : 'CRC', 'name' : 'Costa Rica Colon'},
            {'code' : 'CUC', 'name' : 'Cuba Convertible Peso'},
            {'code' : 'CUP', 'name' : 'Cuba Peso'},
            {'code' : 'CVE', 'name' : 'Cape Verde Escudo'},
            {'code' : 'CZK', 'name' : 'Czech Republic Koruna'},
            {'code' : 'DJF', 'name' : 'Djibouti Franc'},
            {'code' : 'DKK', 'name' : 'Denmark Krone'},
            {'code' : 'DOP', 'name' : 'Dominican Republic Peso'},
            {'code' : 'DZD', 'name' : 'Algeria Dinar'},
            {'code' : 'EGP', 'name' : 'Egypt Pound'},
            {'code' : 'ERN', 'name' : 'Eritrea Nakfa'},
            {'code' : 'ETB', 'name' : 'Ethiopia Birr'},
            {'code' : 'EUR', 'name' : 'Euro Member Countries'},
            {'code' : 'FJD', 'name' : 'Fiji Dollar'},
            {'code' : 'FKP', 'name' : 'Falkland Islands (Malvinas) Pound'},
            {'code' : 'GBP', 'name' : 'United Kingdom Pound'},
            {'code' : 'GEL', 'name' : 'Georgia Lari'},
            {'code' : 'GGP', 'name' : 'Guernsey Pound'},
            {'code' : 'GHS', 'name' : 'Ghana Cedi'},
            {'code' : 'GIP', 'name' : 'Gibraltar Pound'},
            {'code' : 'GMD', 'name' : 'Gambia Dalasi'},
            {'code' : 'GNF', 'name' : 'Guinea Franc'},
            {'code' : 'GTQ', 'name' : 'Guatemala Quetzal'},
            {'code' : 'GYD', 'name' : 'Guyana Dollar'},
            {'code' : 'HKD', 'name' : 'Hong Kong Dollar'},
            {'code' : 'HNL', 'name' : 'Honduras Lempira'},
            {'code' : 'HRK', 'name' : 'Croatia Kuna'},
            {'code' : 'HTG', 'name' : 'Haiti Gourde'},
            {'code' : 'HUF', 'name' : 'Hungary Forint'},
            {'code' : 'IDR', 'name' : 'Indonesia Rupiah'},
            {'code' : 'ILS', 'name' : 'Israel Shekel'},
            {'code' : 'IMP', 'name' : 'Isle of Man Pound'},
            {'code' : 'INR', 'name' : 'India Rupee'},
            {'code' : 'IQD', 'name' : 'Iraq Dinar'},
            {'code' : 'IRR', 'name' : 'Iran Rial'},
            {'code' : 'ISK', 'name' : 'Iceland Krona'},
            {'code' : 'JEP', 'name' : 'Jersey Pound'},
            {'code' : 'JMD', 'name' : 'Jamaica Dollar'},
            {'code' : 'JOD', 'name' : 'Jordan Dinar'},
            {'code' : 'JPY', 'name' : 'Japan Yen'},
            {'code' : 'KES', 'name' : 'Kenya Shilling'},
            {'code' : 'KGS', 'name' : 'Kyrgyzstan Som'},
            {'code' : 'KHR', 'name' : 'Cambodia Riel'},
            {'code' : 'KMF', 'name' : 'Comoros Franc'},
            {'code' : 'KPW', 'name' : 'Korea (North) Won'},
            {'code' : 'KRW', 'name' : 'Korea (South) Won'},
            {'code' : 'KWD', 'name' : 'Kuwait Dinar'},
            {'code' : 'KYD', 'name' : 'Cayman Islands Dollar'},
            {'code' : 'KZT', 'name' : 'Kazakhstan Tenge'},
            {'code' : 'LAK', 'name' : 'Laos Kip'},
            {'code' : 'LBP', 'name' : 'Lebanon Pound'},
            {'code' : 'LKR', 'name' : 'Sri Lanka Rupee'},
            {'code' : 'LRD', 'name' : 'Liberia Dollar'},
            {'code' : 'LSL', 'name' : 'Lesotho Loti'},
            {'code' : 'LTL', 'name' : 'Lithuania Litas'},
            {'code' : 'LYD', 'name' : 'Libya Dinar'},
            {'code' : 'MAD', 'name' : 'Morocco Dirham'},
            {'code' : 'MDL', 'name' : 'Moldova Leu'},
            {'code' : 'MGA', 'name' : 'Madagascar Ariary'},
            {'code' : 'MKD', 'name' : 'Macedonia Denar'},
            {'code' : 'MMK', 'name' : 'Myanmar (Burma) Kyat'},
            {'code' : 'MNT', 'name' : 'Mongolia Tughrik'},
            {'code' : 'MOP', 'name' : 'Macau Pataca'},
            {'code' : 'MRO', 'name' : 'Mauritania Ouguiya'},
            {'code' : 'MUR', 'name' : 'Mauritius Rupee'},
            {'code' : 'MVR', 'name' : 'Maldives (Maldive Islands) Rufiyaa'},
            {'code' : 'MWK', 'name' : 'Malawi Kwacha'},
            {'code' : 'MXN', 'name' : 'Mexico Peso'},
            {'code' : 'MYR', 'name' : 'Malaysia Ringgit'},
            {'code' : 'MZN', 'name' : 'Mozambique Metical'},
            {'code' : 'NAD', 'name' : 'Namibia Dollar'},
            {'code' : 'NGN', 'name' : 'Nigeria Naira'},
            {'code' : 'NIO', 'name' : 'Nicaragua Cordoba'},
            {'code' : 'NOK', 'name' : 'Norway Krone'},
            {'code' : 'NPR', 'name' : 'Nepal Rupee'},
            {'code' : 'NZD', 'name' : 'New Zealand Dollar'},
            {'code' : 'OMR', 'name' : 'Oman Rial'},
            {'code' : 'PAB', 'name' : 'Panama Balboa'},
            {'code' : 'PEN', 'name' : 'Peru Nuevo Sol'},
            {'code' : 'PGK', 'name' : 'Papua New Guinea Kina'},
            {'code' : 'PHP', 'name' : 'Philippines Peso'},
            {'code' : 'PKR', 'name' : 'Pakistan Rupee'},
            {'code' : 'PLN', 'name' : 'Poland Zloty'},
            {'code' : 'PYG', 'name' : 'Paraguay Guarani'},
            {'code' : 'QAR', 'name' : 'Qatar Riyal'},
            {'code' : 'RON', 'name' : 'Romania New Leu'},
            {'code' : 'RSD', 'name' : 'Serbia Dinar'},
            {'code' : 'RUB', 'name' : 'Russia Ruble'},
            {'code' : 'RWF', 'name' : 'Rwanda Franc'},
            {'code' : 'SAR', 'name' : 'Saudi Arabia Riyal'},
            {'code' : 'SBD', 'name' : 'Solomon Islands Dollar'},
            {'code' : 'SCR', 'name' : 'Seychelles Rupee'},
            {'code' : 'SDG', 'name' : 'Sudan Pound'},
            {'code' : 'SEK', 'name' : 'Sweden Krona'},
            {'code' : 'SGD', 'name' : 'Singapore Dollar'},
            {'code' : 'SHP', 'name' : 'Saint Helena Pound'},
            {'code' : 'SLL', 'name' : 'Sierra Leone Leone'},
            {'code' : 'SOS', 'name' : 'Somalia Shilling'},
            {'code' : 'SPL', 'name' : 'Seborga Luigino'},
            {'code' : 'SRD', 'name' : 'Suriname Dollar'},
            {'code' : 'STD', 'name' : 'São Tomé and Príncipe Dobra'},
            {'code' : 'SVC', 'name' : 'El Salvador Colon'},
            {'code' : 'SYP', 'name' : 'Syria Pound'},
            {'code' : 'SZL', 'name' : 'Swaziland Lilangeni'},
            {'code' : 'THB', 'name' : 'Thailand Baht'},
            {'code' : 'TJS', 'name' : 'Tajikistan Somoni'},
            {'code' : 'TMT', 'name' : 'Turkmenistan Manat'},
            {'code' : 'TND', 'name' : 'Tunisia Dinar'},
            {'code' : 'TOP', 'name' : 'Tonga Pa\'anga'},
            {'code' : 'TRY', 'name' : 'Turkey Lira'},
            {'code' : 'TTD', 'name' : 'Trinidad and Tobago Dollar'},
            {'code' : 'TVD', 'name' : 'Tuvalu Dollar'},
            {'code' : 'TWD', 'name' : 'Taiwan New Dollar'},
            {'code' : 'TZS', 'name' : 'Tanzania Shilling'},
            {'code' : 'UAH', 'name' : 'Ukraine Hryvnia'},
            {'code' : 'UGX', 'name' : 'Uganda Shilling'},
            {'code' : 'USD', 'name' : 'United States Dollar'},
            {'code' : 'UYU', 'name' : 'Uruguay Peso'},
            {'code' : 'UZS', 'name' : 'Uzbekistan Som'},
            {'code' : 'VEF', 'name' : 'Venezuela Bolivar'},
            {'code' : 'VND', 'name' : 'Viet Nam Dong'},
            {'code' : 'VUV', 'name' : 'Vanuatu Vatu'},
            {'code' : 'WST', 'name' : 'Samoa Tala'},
            {'code' : 'XAF', 'name' : 'Communauté Financière Africaine (BEAC) CFA Franc BEAC'},
            {'code' : 'XCD', 'name' : 'East Caribbean Dollar'},
            {'code' : 'XDR', 'name' : 'International Monetary Fund (IMF) Special Drawing Rights'},
            {'code' : 'XOF', 'name' : 'Communauté Financière Africaine (BCEAO) Franc'},
            {'code' : 'XPF', 'name' : 'Comptoirs Français du Pacifique (CFP) Franc'},
            {'code' : 'YER', 'name' : 'Yemen Rial'},
            {'code' : 'ZAR', 'name' : 'South Africa Rand'},
            {'code' : 'ZMW', 'name' : 'Zambia Kwacha'},
            {'code' : 'ZWD', 'name' : 'Zimbabwe Dollar'}
        ],

        // return the names of all valide colors
        colorNames : [  "AliceBlue", "Black", "Navy", "DarkBlue", "MediumBlue", "Blue", "DarkGreen", "Green", "Teal", "DarkCyan", "DeepSkyBlue", "DarkTurquoise", "MediumSpringGreen", "Lime", "SpringGreen",
            "Aqua", "Cyan", "MidnightBlue", "DodgerBlue", "LightSeaGreen", "ForestGreen", "SeaGreen", "DarkSlateGray", "LimeGreen", "MediumSeaGreen", "Turquoise", "RoyalBlue", "SteelBlue", "DarkSlateBlue", "MediumTurquoise",
            "Indigo", "DarkOliveGreen", "CadetBlue", "CornflowerBlue", "RebeccaPurple", "MediumAquaMarine", "DimGray", "SlateBlue", "OliveDrab", "SlateGray", "LightSlateGray", "MediumSlateBlue", "LawnGreen", "Chartreuse",
            "Aquamarine", "Maroon", "Purple", "Olive", "Gray", "SkyBlue", "LightSkyBlue", "BlueViolet", "DarkRed", "DarkMagenta", "SaddleBrown", "Ivory", "White",
            "DarkSeaGreen", "LightGreen", "MediumPurple", "DarkViolet", "PaleGreen", "DarkOrchid", "YellowGreen", "Sienna", "Brown", "DarkGray", "LightBlue", "GreenYellow", "PaleTurquoise", "LightSteelBlue", "PowderBlue",
            "FireBrick", "DarkGoldenRod", "MediumOrchid", "RosyBrown", "DarkKhaki", "Silver", "MediumVioletRed", "IndianRed", "Peru", "Chocolate", "Tan", "LightGray", "Thistle", "Orchid", "GoldenRod", "PaleVioletRed",
            "Crimson", "Gainsboro", "Plum", "BurlyWood", "LightCyan", "Lavender", "DarkSalmon", "Violet", "PaleGoldenRod", "LightCoral", "Khaki", "AliceBlue", "HoneyDew", "Azure", "SandyBrown", "Wheat", "Beige", "WhiteSmoke",
            "MintCream", "GhostWhite", "Salmon", "AntiqueWhite", "Linen", "LightGoldenRodYellow", "OldLace", "Red", "Fuchsia", "Magenta", "DeepPink", "OrangeRed", "Tomato", "HotPink", "Coral", "DarkOrange", "LightSalmon", "Orange",
            "LightPink", "Pink", "Gold", "PeachPuff", "NavajoWhite", "Moccasin", "Bisque", "MistyRose", "BlanchedAlmond", "PapayaWhip", "LavenderBlush", "SeaShell", "Cornsilk", "LemonChiffon", "FloralWhite", "Snow", "Yellow", "LightYellow"
        ],

        // Data taken from https://www.sec.gov/rules/other/4-460list.htm
        company: [ "3Com Corp",
        "3M Company",
        "A.G. Edwards Inc.",
        "Abbott Laboratories",
        "Abercrombie & Fitch Co.",
        "ABM Industries Incorporated",
        "Ace Hardware Corporation",
        "ACT Manufacturing Inc.",
        "Acterna Corp.",
        "Adams Resources & Energy, Inc.",
        "ADC Telecommunications, Inc.",
        "Adelphia Communications Corporation",
        "Administaff, Inc.",
        "Adobe Systems Incorporated",
        "Adolph Coors Company",
        "Advance Auto Parts, Inc.",
        "Advanced Micro Devices, Inc.",
        "AdvancePCS, Inc.",
        "Advantica Restaurant Group, Inc.",
        "The AES Corporation",
        "Aetna Inc.",
        "Affiliated Computer Services, Inc.",
        "AFLAC Incorporated",
        "AGCO Corporation",
        "Agilent Technologies, Inc.",
        "Agway Inc.",
        "Apartment Investment and Management Company",
        "Air Products and Chemicals, Inc.",
        "Airborne, Inc.",
        "Airgas, Inc.",
        "AK Steel Holding Corporation",
        "Alaska Air Group, Inc.",
        "Alberto-Culver Company",
        "Albertson's, Inc.",
        "Alcoa Inc.",
        "Alleghany Corporation",
        "Allegheny Energy, Inc.",
        "Allegheny Technologies Incorporated",
        "Allergan, Inc.",
        "ALLETE, Inc.",
        "Alliant Energy Corporation",
        "Allied Waste Industries, Inc.",
        "Allmerica Financial Corporation",
        "The Allstate Corporation",
        "ALLTEL Corporation",
        "The Alpine Group, Inc.",
        "Amazon.com, Inc.",
        "AMC Entertainment Inc.",
        "American Power Conversion Corporation",
        "Amerada Hess Corporation",
        "AMERCO",
        "Ameren Corporation",
        "America West Holdings Corporation",
        "American Axle & Manufacturing Holdings, Inc.",
        "American Eagle Outfitters, Inc.",
        "American Electric Power Company, Inc.",
        "American Express Company",
        "American Financial Group, Inc.",
        "American Greetings Corporation",
        "American International Group, Inc.",
        "American Standard Companies Inc.",
        "American Water Works Company, Inc.",
        "AmerisourceBergen Corporation",
        "Ames Department Stores, Inc.",
        "Amgen Inc.",
        "Amkor Technology, Inc.",
        "AMR Corporation",
        "AmSouth Bancorp.",
        "Amtran, Inc.",
        "Anadarko Petroleum Corporation",
        "Analog Devices, Inc.",
        "Anheuser-Busch Companies, Inc.",
        "Anixter International Inc.",
        "AnnTaylor Inc.",
        "Anthem, Inc.",
        "AOL Time Warner Inc.",
        "Aon Corporation",
        "Apache Corporation",
        "Apple Computer, Inc.",
        "Applera Corporation",
        "Applied Industrial Technologies, Inc.",
        "Applied Materials, Inc.",
        "Aquila, Inc.",
        "ARAMARK Corporation",
        "Arch Coal, Inc.",
        "Archer Daniels Midland Company",
        "Arkansas Best Corporation",
        "Armstrong Holdings, Inc.",
        "Arrow Electronics, Inc.",
        "ArvinMeritor, Inc.",
        "Ashland Inc.",
        "Astoria Financial Corporation",
        "AT&T Corp.",
        "Atmel Corporation",
        "Atmos Energy Corporation",
        "Audiovox Corporation",
        "Autoliv, Inc.",
        "Automatic Data Processing, Inc.",
        "AutoNation, Inc.",
        "AutoZone, Inc.",
        "Avaya Inc.",
        "Avery Dennison Corporation",
        "Avista Corporation",
        "Avnet, Inc.",
        "Avon Products, Inc.",
        "Baker Hughes Incorporated",
        "Ball Corporation",
        "Bank of America Corporation",
        "The Bank of New York Company, Inc.",
        "Bank One Corporation",
        "Banknorth Group, Inc.",
        "Banta Corporation",
        "Barnes & Noble, Inc.",
        "Bausch & Lomb Incorporated",
        "Baxter International Inc.",
        "BB&T Corporation",
        "The Bear Stearns Companies Inc.",
        "Beazer Homes USA, Inc.",
        "Beckman Coulter, Inc.",
        "Becton, Dickinson and Company",
        "Bed Bath & Beyond Inc.",
        "Belk, Inc.",
        "Bell Microproducts Inc.",
        "BellSouth Corporation",
        "Belo Corp.",
        "Bemis Company, Inc.",
        "Benchmark Electronics, Inc.",
        "Berkshire Hathaway Inc.",
        "Best Buy Co., Inc.",
        "Bethlehem Steel Corporation",
        "Beverly Enterprises, Inc.",
        "Big Lots, Inc.",
        "BJ Services Company",
        "BJ's Wholesale Club, Inc.",
        "The Black & Decker Corporation",
        "Black Hills Corporation",
        "BMC Software, Inc.",
        "The Boeing Company",
        "Boise Cascade Corporation",
        "Borders Group, Inc.",
        "BorgWarner Inc.",
        "Boston Scientific Corporation",
        "Bowater Incorporated",
        "Briggs & Stratton Corporation",
        "Brightpoint, Inc.",
        "Brinker International, Inc.",
        "Bristol-Myers Squibb Company",
        "Broadwing, Inc.",
        "Brown Shoe Company, Inc.",
        "Brown-Forman Corporation",
        "Brunswick Corporation",
        "Budget Group, Inc.",
        "Burlington Coat Factory Warehouse Corporation",
        "Burlington Industries, Inc.",
        "Burlington Northern Santa Fe Corporation",
        "Burlington Resources Inc.",
        "C. H. Robinson Worldwide Inc.",
        "Cablevision Systems Corp",
        "Cabot Corp",
        "Cadence Design Systems, Inc.",
        "Calpine Corp.",
        "Campbell Soup Co.",
        "Capital One Financial Corp.",
        "Cardinal Health Inc.",
        "Caremark Rx Inc.",
        "Carlisle Cos. Inc.",
        "Carpenter Technology Corp.",
        "Casey's General Stores Inc.",
        "Caterpillar Inc.",
        "CBRL Group Inc.",
        "CDI Corp.",
        "CDW Computer Centers Inc.",
        "CellStar Corp.",
        "Cendant Corp",
        "Cenex Harvest States Cooperatives",
        "Centex Corp.",
        "CenturyTel Inc.",
        "Ceridian Corp.",
        "CH2M Hill Cos. Ltd.",
        "Champion Enterprises Inc.",
        "Charles Schwab Corp.",
        "Charming Shoppes Inc.",
        "Charter Communications Inc.",
        "Charter One Financial Inc.",
        "ChevronTexaco Corp.",
        "Chiquita Brands International Inc.",
        "Chubb Corp",
        "Ciena Corp.",
        "Cigna Corp",
        "Cincinnati Financial Corp.",
        "Cinergy Corp.",
        "Cintas Corp.",
        "Circuit City Stores Inc.",
        "Cisco Systems Inc.",
        "Citigroup, Inc",
        "Citizens Communications Co.",
        "CKE Restaurants Inc.",
        "Clear Channel Communications Inc.",
        "The Clorox Co.",
        "CMGI Inc.",
        "CMS Energy Corp.",
        "CNF Inc.",
        "Coca-Cola Co.",
        "Coca-Cola Enterprises Inc.",
        "Colgate-Palmolive Co.",
        "Collins & Aikman Corp.",
        "Comcast Corp.",
        "Comdisco Inc.",
        "Comerica Inc.",
        "Comfort Systems USA Inc.",
        "Commercial Metals Co.",
        "Community Health Systems Inc.",
        "Compass Bancshares Inc",
        "Computer Associates International Inc.",
        "Computer Sciences Corp.",
        "Compuware Corp.",
        "Comverse Technology Inc.",
        "ConAgra Foods Inc.",
        "Concord EFS Inc.",
        "Conectiv, Inc",
        "Conoco Inc",
        "Conseco Inc.",
        "Consolidated Freightways Corp.",
        "Consolidated Edison Inc.",
        "Constellation Brands Inc.",
        "Constellation Emergy Group Inc.",
        "Continental Airlines Inc.",
        "Convergys Corp.",
        "Cooper Cameron Corp.",
        "Cooper Industries Ltd.",
        "Cooper Tire & Rubber Co.",
        "Corn Products International Inc.",
        "Corning Inc.",
        "Costco Wholesale Corp.",
        "Countrywide Credit Industries Inc.",
        "Coventry Health Care Inc.",
        "Cox Communications Inc.",
        "Crane Co.",
        "Crompton Corp.",
        "Crown Cork & Seal Co. Inc.",
        "CSK Auto Corp.",
        "CSX Corp.",
        "Cummins Inc.",
        "CVS Corp.",
        "Cytec Industries Inc.",
        "D&K Healthcare Resources, Inc.",
        "D.R. Horton Inc.",
        "Dana Corporation",
        "Danaher Corporation",
        "Darden Restaurants Inc.",
        "DaVita Inc.",
        "Dean Foods Company",
        "Deere & Company",
        "Del Monte Foods Co",
        "Dell Computer Corporation",
        "Delphi Corp.",
        "Delta Air Lines Inc.",
        "Deluxe Corporation",
        "Devon Energy Corporation",
        "Di Giorgio Corporation",
        "Dial Corporation",
        "Diebold Incorporated",
        "Dillard's Inc.",
        "DIMON Incorporated",
        "Dole Food Company, Inc.",
        "Dollar General Corporation",
        "Dollar Tree Stores, Inc.",
        "Dominion Resources, Inc.",
        "Domino's Pizza LLC",
        "Dover Corporation, Inc.",
        "Dow Chemical Company",
        "Dow Jones & Company, Inc.",
        "DPL Inc.",
        "DQE Inc.",
        "Dreyer's Grand Ice Cream, Inc.",
        "DST Systems, Inc.",
        "DTE Energy Co.",
        "E.I. Du Pont de Nemours and Company",
        "Duke Energy Corp",
        "Dun & Bradstreet Inc.",
        "DURA Automotive Systems Inc.",
        "DynCorp",
        "Dynegy Inc.",
        "E*Trade Group, Inc.",
        "E.W. Scripps Company",
        "Earthlink, Inc.",
        "Eastman Chemical Company",
        "Eastman Kodak Company",
        "Eaton Corporation",
        "Echostar Communications Corporation",
        "Ecolab Inc.",
        "Edison International",
        "EGL Inc.",
        "El Paso Corporation",
        "Electronic Arts Inc.",
        "Electronic Data Systems Corp.",
        "Eli Lilly and Company",
        "EMC Corporation",
        "Emcor Group Inc.",
        "Emerson Electric Co.",
        "Encompass Services Corporation",
        "Energizer Holdings Inc.",
        "Energy East Corporation",
        "Engelhard Corporation",
        "Enron Corp.",
        "Entergy Corporation",
        "Enterprise Products Partners L.P.",
        "EOG Resources, Inc.",
        "Equifax Inc.",
        "Equitable Resources Inc.",
        "Equity Office Properties Trust",
        "Equity Residential Properties Trust",
        "Estee Lauder Companies Inc.",
        "Exelon Corporation",
        "Exide Technologies",
        "Expeditors International of Washington Inc.",
        "Express Scripts Inc.",
        "ExxonMobil Corporation",
        "Fairchild Semiconductor International Inc.",
        "Family Dollar Stores Inc.",
        "Farmland Industries Inc.",
        "Federal Mogul Corp.",
        "Federated Department Stores Inc.",
        "Federal Express Corp.",
        "Felcor Lodging Trust Inc.",
        "Ferro Corp.",
        "Fidelity National Financial Inc.",
        "Fifth Third Bancorp",
        "First American Financial Corp.",
        "First Data Corp.",
        "First National of Nebraska Inc.",
        "First Tennessee National Corp.",
        "FirstEnergy Corp.",
        "Fiserv Inc.",
        "Fisher Scientific International Inc.",
        "FleetBoston Financial Co.",
        "Fleetwood Enterprises Inc.",
        "Fleming Companies Inc.",
        "Flowers Foods Inc.",
        "Flowserv Corp",
        "Fluor Corp",
        "FMC Corp",
        "Foamex International Inc",
        "Foot Locker Inc",
        "Footstar Inc.",
        "Ford Motor Co",
        "Forest Laboratories Inc.",
        "Fortune Brands Inc.",
        "Foster Wheeler Ltd.",
        "FPL Group Inc.",
        "Franklin Resources Inc.",
        "Freeport McMoran Copper & Gold Inc.",
        "Frontier Oil Corp",
        "Furniture Brands International Inc.",
        "Gannett Co., Inc.",
        "Gap Inc.",
        "Gateway Inc.",
        "GATX Corporation",
        "Gemstar-TV Guide International Inc.",
        "GenCorp Inc.",
        "General Cable Corporation",
        "General Dynamics Corporation",
        "General Electric Company",
        "General Mills Inc",
        "General Motors Corporation",
        "Genesis Health Ventures Inc.",
        "Gentek Inc.",
        "Gentiva Health Services Inc.",
        "Genuine Parts Company",
        "Genuity Inc.",
        "Genzyme Corporation",
        "Georgia Gulf Corporation",
        "Georgia-Pacific Corporation",
        "Gillette Company",
        "Gold Kist Inc.",
        "Golden State Bancorp Inc.",
        "Golden West Financial Corporation",
        "Goldman Sachs Group Inc.",
        "Goodrich Corporation",
        "The Goodyear Tire & Rubber Company",
        "Granite Construction Incorporated",
        "Graybar Electric Company Inc.",
        "Great Lakes Chemical Corporation",
        "Great Plains Energy Inc.",
        "GreenPoint Financial Corp.",
        "Greif Bros. Corporation",
        "Grey Global Group Inc.",
        "Group 1 Automotive Inc.",
        "Guidant Corporation",
        "H&R Block Inc.",
        "H.B. Fuller Company",
        "H.J. Heinz Company",
        "Halliburton Co.",
        "Harley-Davidson Inc.",
        "Harman International Industries Inc.",
        "Harrah's Entertainment Inc.",
        "Harris Corp.",
        "Harsco Corp.",
        "Hartford Financial Services Group Inc.",
        "Hasbro Inc.",
        "Hawaiian Electric Industries Inc.",
        "HCA Inc.",
        "Health Management Associates Inc.",
        "Health Net Inc.",
        "Healthsouth Corp",
        "Henry Schein Inc.",
        "Hercules Inc.",
        "Herman Miller Inc.",
        "Hershey Foods Corp.",
        "Hewlett-Packard Company",
        "Hibernia Corp.",
        "Hillenbrand Industries Inc.",
        "Hilton Hotels Corp.",
        "Hollywood Entertainment Corp.",
        "Home Depot Inc.",
        "Hon Industries Inc.",
        "Honeywell International Inc.",
        "Hormel Foods Corp.",
        "Host Marriott Corp.",
        "Household International Corp.",
        "Hovnanian Enterprises Inc.",
        "Hub Group Inc.",
        "Hubbell Inc.",
        "Hughes Supply Inc.",
        "Humana Inc.",
        "Huntington Bancshares Inc.",
        "Idacorp Inc.",
        "IDT Corporation",
        "IKON Office Solutions Inc.",
        "Illinois Tool Works Inc.",
        "IMC Global Inc.",
        "Imperial Sugar Company",
        "IMS Health Inc.",
        "Ingles Market Inc",
        "Ingram Micro Inc.",
        "Insight Enterprises Inc.",
        "Integrated Electrical Services Inc.",
        "Intel Corporation",
        "International Paper Co.",
        "Interpublic Group of Companies Inc.",
        "Interstate Bakeries Corporation",
        "International Business Machines Corp.",
        "International Flavors & Fragrances Inc.",
        "International Multifoods Corporation",
        "Intuit Inc.",
        "IT Group Inc.",
        "ITT Industries Inc.",
        "Ivax Corp.",
        "J.B. Hunt Transport Services Inc.",
        "J.C. Penny Co.",
        "J.P. Morgan Chase & Co.",
        "Jabil Circuit Inc.",
        "Jack In The Box Inc.",
        "Jacobs Engineering Group Inc.",
        "JDS Uniphase Corp.",
        "Jefferson-Pilot Co.",
        "John Hancock Financial Services Inc.",
        "Johnson & Johnson",
        "Johnson Controls Inc.",
        "Jones Apparel Group Inc.",
        "KB Home",
        "Kellogg Company",
        "Kellwood Company",
        "Kelly Services Inc.",
        "Kemet Corp.",
        "Kennametal Inc.",
        "Kerr-McGee Corporation",
        "KeyCorp",
        "KeySpan Corp.",
        "Kimball International Inc.",
        "Kimberly-Clark Corporation",
        "Kindred Healthcare Inc.",
        "KLA-Tencor Corporation",
        "K-Mart Corp.",
        "Knight-Ridder Inc.",
        "Kohl's Corp.",
        "KPMG Consulting Inc.",
        "Kroger Co.",
        "L-3 Communications Holdings Inc.",
        "Laboratory Corporation of America Holdings",
        "Lam Research Corporation",
        "LandAmerica Financial Group Inc.",
        "Lands' End Inc.",
        "Landstar System Inc.",
        "La-Z-Boy Inc.",
        "Lear Corporation",
        "Legg Mason Inc.",
        "Leggett & Platt Inc.",
        "Lehman Brothers Holdings Inc.",
        "Lennar Corporation",
        "Lennox International Inc.",
        "Level 3 Communications Inc.",
        "Levi Strauss & Co.",
        "Lexmark International Inc.",
        "Limited Inc.",
        "Lincoln National Corporation",
        "Linens 'n Things Inc.",
        "Lithia Motors Inc.",
        "Liz Claiborne Inc.",
        "Lockheed Martin Corporation",
        "Loews Corporation",
        "Longs Drug Stores Corporation",
        "Louisiana-Pacific Corporation",
        "Lowe's Companies Inc.",
        "LSI Logic Corporation",
        "The LTV Corporation",
        "The Lubrizol Corporation",
        "Lucent Technologies Inc.",
        "Lyondell Chemical Company",
        "M & T Bank Corporation",
        "Magellan Health Services Inc.",
        "Mail-Well Inc.",
        "Mandalay Resort Group",
        "Manor Care Inc.",
        "Manpower Inc.",
        "Marathon Oil Corporation",
        "Mariner Health Care Inc.",
        "Markel Corporation",
        "Marriott International Inc.",
        "Marsh & McLennan Companies Inc.",
        "Marsh Supermarkets Inc.",
        "Marshall & Ilsley Corporation",
        "Martin Marietta Materials Inc.",
        "Masco Corporation",
        "Massey Energy Company",
        "MasTec Inc.",
        "Mattel Inc.",
        "Maxim Integrated Products Inc.",
        "Maxtor Corporation",
        "Maxxam Inc.",
        "The May Department Stores Company",
        "Maytag Corporation",
        "MBNA Corporation",
        "McCormick & Company Incorporated",
        "McDonald's Corporation",
        "The McGraw-Hill Companies Inc.",
        "McKesson Corporation",
        "McLeodUSA Incorporated",
        "M.D.C. Holdings Inc.",
        "MDU Resources Group Inc.",
        "MeadWestvaco Corporation",
        "Medtronic Inc.",
        "Mellon Financial Corporation",
        "The Men's Wearhouse Inc.",
        "Merck & Co., Inc.",
        "Mercury General Corporation",
        "Merrill Lynch & Co. Inc.",
        "Metaldyne Corporation",
        "Metals USA Inc.",
        "MetLife Inc.",
        "Metris Companies Inc",
        "MGIC Investment Corporation",
        "MGM Mirage",
        "Michaels Stores Inc.",
        "Micron Technology Inc.",
        "Microsoft Corporation",
        "Milacron Inc.",
        "Millennium Chemicals Inc.",
        "Mirant Corporation",
        "Mohawk Industries Inc.",
        "Molex Incorporated",
        "The MONY Group Inc.",
        "Morgan Stanley Dean Witter & Co.",
        "Motorola Inc.",
        "MPS Group Inc.",
        "Murphy Oil Corporation",
        "Nabors Industries Inc",
        "Nacco Industries Inc",
        "Nash Finch Company",
        "National City Corp.",
        "National Commerce Financial Corporation",
        "National Fuel Gas Company",
        "National Oilwell Inc",
        "National Rural Utilities Cooperative Finance Corporation",
        "National Semiconductor Corporation",
        "National Service Industries Inc",
        "Navistar International Corporation",
        "NCR Corporation",
        "The Neiman Marcus Group Inc.",
        "New Jersey Resources Corporation",
        "New York Times Company",
        "Newell Rubbermaid Inc",
        "Newmont Mining Corporation",
        "Nextel Communications Inc",
        "Nicor Inc",
        "Nike Inc",
        "NiSource Inc",
        "Noble Energy Inc",
        "Nordstrom Inc",
        "Norfolk Southern Corporation",
        "Nortek Inc",
        "North Fork Bancorporation Inc",
        "Northeast Utilities System",
        "Northern Trust Corporation",
        "Northrop Grumman Corporation",
        "NorthWestern Corporation",
        "Novellus Systems Inc",
        "NSTAR",
        "NTL Incorporated",
        "Nucor Corp",
        "Nvidia Corp",
        "NVR Inc",
        "Northwest Airlines Corp",
        "Occidental Petroleum Corp",
        "Ocean Energy Inc",
        "Office Depot Inc.",
        "OfficeMax Inc",
        "OGE Energy Corp",
        "Oglethorpe Power Corp.",
        "Ohio Casualty Corp.",
        "Old Republic International Corp.",
        "Olin Corp.",
        "OM Group Inc",
        "Omnicare Inc",
        "Omnicom Group",
        "On Semiconductor Corp",
        "ONEOK Inc",
        "Oracle Corp",
        "Oshkosh Truck Corp",
        "Outback Steakhouse Inc.",
        "Owens & Minor Inc.",
        "Owens Corning",
        "Owens-Illinois Inc",
        "Oxford Health Plans Inc",
        "Paccar Inc",
        "PacifiCare Health Systems Inc",
        "Packaging Corp. of America",
        "Pactiv Corp",
        "Pall Corp",
        "Pantry Inc",
        "Park Place Entertainment Corp",
        "Parker Hannifin Corp.",
        "Pathmark Stores Inc.",
        "Paychex Inc",
        "Payless Shoesource Inc",
        "Penn Traffic Co.",
        "Pennzoil-Quaker State Company",
        "Pentair Inc",
        "Peoples Energy Corp.",
        "PeopleSoft Inc",
        "Pep Boys Manny, Moe & Jack",
        "Potomac Electric Power Co.",
        "Pepsi Bottling Group Inc.",
        "PepsiAmericas Inc.",
        "PepsiCo Inc.",
        "Performance Food Group Co.",
        "Perini Corp",
        "PerkinElmer Inc",
        "Perot Systems Corp",
        "Petco Animal Supplies Inc.",
        "Peter Kiewit Sons', Inc.",
        "PETsMART Inc",
        "Pfizer Inc",
        "Pacific Gas & Electric Corp.",
        "Pharmacia Corp",
        "Phar Mor Inc.",
        "Phelps Dodge Corp.",
        "Philip Morris Companies Inc.",
        "Phillips Petroleum Co",
        "Phillips Van Heusen Corp.",
        "Phoenix Companies Inc",
        "Pier 1 Imports Inc.",
        "Pilgrim's Pride Corporation",
        "Pinnacle West Capital Corp",
        "Pioneer-Standard Electronics Inc.",
        "Pitney Bowes Inc.",
        "Pittston Brinks Group",
        "Plains All American Pipeline LP",
        "PNC Financial Services Group Inc.",
        "PNM Resources Inc",
        "Polaris Industries Inc.",
        "Polo Ralph Lauren Corp",
        "PolyOne Corp",
        "Popular Inc",
        "Potlatch Corp",
        "PPG Industries Inc",
        "PPL Corp",
        "Praxair Inc",
        "Precision Castparts Corp",
        "Premcor Inc.",
        "Pride International Inc",
        "Primedia Inc",
        "Principal Financial Group Inc.",
        "Procter & Gamble Co.",
        "Pro-Fac Cooperative Inc.",
        "Progress Energy Inc",
        "Progressive Corporation",
        "Protective Life Corp",
        "Provident Financial Group",
        "Providian Financial Corp.",
        "Prudential Financial Inc.",
        "PSS World Medical Inc",
        "Public Service Enterprise Group Inc.",
        "Publix Super Markets Inc.",
        "Puget Energy Inc.",
        "Pulte Homes Inc",
        "Qualcomm Inc",
        "Quanta Services Inc.",
        "Quantum Corp",
        "Quest Diagnostics Inc.",
        "Questar Corp",
        "Quintiles Transnational",
        "Qwest Communications Intl Inc",
        "R.J. Reynolds Tobacco Company",
        "R.R. Donnelley & Sons Company",
        "Radio Shack Corporation",
        "Raymond James Financial Inc.",
        "Raytheon Company",
        "Reader's Digest Association Inc.",
        "Reebok International Ltd.",
        "Regions Financial Corp.",
        "Regis Corporation",
        "Reliance Steel & Aluminum Co.",
        "Reliant Energy Inc.",
        "Rent A Center Inc",
        "Republic Services Inc",
        "Revlon Inc",
        "RGS Energy Group Inc",
        "Rite Aid Corp",
        "Riverwood Holding Inc.",
        "RoadwayCorp",
        "Robert Half International Inc.",
        "Rock-Tenn Co",
        "Rockwell Automation Inc",
        "Rockwell Collins Inc",
        "Rohm & Haas Co.",
        "Ross Stores Inc",
        "RPM Inc.",
        "Ruddick Corp",
        "Ryder System Inc",
        "Ryerson Tull Inc",
        "Ryland Group Inc.",
        "Sabre Holdings Corp",
        "Safeco Corp",
        "Safeguard Scientifics Inc.",
        "Safeway Inc",
        "Saks Inc",
        "Sanmina-SCI Inc",
        "Sara Lee Corp",
        "SBC Communications Inc",
        "Scana Corp.",
        "Schering-Plough Corp",
        "Scholastic Corp",
        "SCI Systems Onc.",
        "Science Applications Intl. Inc.",
        "Scientific-Atlanta Inc",
        "Scotts Company",
        "Seaboard Corp",
        "Sealed Air Corp",
        "Sears Roebuck & Co",
        "Sempra Energy",
        "Sequa Corp",
        "Service Corp. International",
        "ServiceMaster Co",
        "Shaw Group Inc",
        "Sherwin-Williams Company",
        "Shopko Stores Inc",
        "Siebel Systems Inc",
        "Sierra Health Services Inc",
        "Sierra Pacific Resources",
        "Silgan Holdings Inc.",
        "Silicon Graphics Inc",
        "Simon Property Group Inc",
        "SLM Corporation",
        "Smith International Inc",
        "Smithfield Foods Inc",
        "Smurfit-Stone Container Corp",
        "Snap-On Inc",
        "Solectron Corp",
        "Solutia Inc",
        "Sonic Automotive Inc.",
        "Sonoco Products Co.",
        "Southern Company",
        "Southern Union Company",
        "SouthTrust Corp.",
        "Southwest Airlines Co",
        "Southwest Gas Corp",
        "Sovereign Bancorp Inc.",
        "Spartan Stores Inc",
        "Spherion Corp",
        "Sports Authority Inc",
        "Sprint Corp.",
        "SPX Corp",
        "St. Jude Medical Inc",
        "St. Paul Cos.",
        "Staff Leasing Inc.",
        "StanCorp Financial Group Inc",
        "Standard Pacific Corp.",
        "Stanley Works",
        "Staples Inc",
        "Starbucks Corp",
        "Starwood Hotels & Resorts Worldwide Inc",
        "State Street Corp.",
        "Stater Bros. Holdings Inc.",
        "Steelcase Inc",
        "Stein Mart Inc",
        "Stewart & Stevenson Services Inc",
        "Stewart Information Services Corp",
        "Stilwell Financial Inc",
        "Storage Technology Corporation",
        "Stryker Corp",
        "Sun Healthcare Group Inc.",
        "Sun Microsystems Inc.",
        "SunGard Data Systems Inc.",
        "Sunoco Inc.",
        "SunTrust Banks Inc",
        "Supervalu Inc",
        "Swift Transportation, Co., Inc",
        "Symbol Technologies Inc",
        "Synovus Financial Corp.",
        "Sysco Corp",
        "Systemax Inc.",
        "Target Corp.",
        "Tech Data Corporation",
        "TECO Energy Inc",
        "Tecumseh Products Company",
        "Tektronix Inc",
        "Teleflex Incorporated",
        "Telephone & Data Systems Inc",
        "Tellabs Inc.",
        "Temple-Inland Inc",
        "Tenet Healthcare Corporation",
        "Tenneco Automotive Inc.",
        "Teradyne Inc",
        "Terex Corp",
        "Tesoro Petroleum Corp.",
        "Texas Industries Inc.",
        "Texas Instruments Incorporated",
        "Textron Inc",
        "Thermo Electron Corporation",
        "Thomas & Betts Corporation",
        "Tiffany & Co",
        "Timken Company",
        "TJX Companies Inc",
        "TMP Worldwide Inc",
        "Toll Brothers Inc",
        "Torchmark Corporation",
        "Toro Company",
        "Tower Automotive Inc.",
        "Toys 'R' Us Inc",
        "Trans World Entertainment Corp.",
        "TransMontaigne Inc",
        "Transocean Inc",
        "TravelCenters of America Inc.",
        "Triad Hospitals Inc",
        "Tribune Company",
        "Trigon Healthcare Inc.",
        "Trinity Industries Inc",
        "Trump Hotels & Casino Resorts Inc.",
        "TruServ Corporation",
        "TRW Inc",
        "TXU Corp",
        "Tyson Foods Inc",
        "U.S. Bancorp",
        "U.S. Industries Inc.",
        "UAL Corporation",
        "UGI Corporation",
        "Unified Western Grocers Inc",
        "Union Pacific Corporation",
        "Union Planters Corp",
        "Unisource Energy Corp",
        "Unisys Corporation",
        "United Auto Group Inc",
        "United Defense Industries Inc.",
        "United Parcel Service Inc",
        "United Rentals Inc",
        "United Stationers Inc",
        "United Technologies Corporation",
        "UnitedHealth Group Incorporated",
        "Unitrin Inc",
        "Universal Corporation",
        "Universal Forest Products Inc",
        "Universal Health Services Inc",
        "Unocal Corporation",
        "Unova Inc",
        "UnumProvident Corporation",
        "URS Corporation",
        "US Airways Group Inc",
        "US Oncology Inc",
        "USA Interactive",
        "USFreighways Corporation",
        "USG Corporation",
        "UST Inc",
        "Valero Energy Corporation",
        "Valspar Corporation",
        "Value City Department Stores Inc",
        "Varco International Inc",
        "Vectren Corporation",
        "Veritas Software Corporation",
        "Verizon Communications Inc",
        "VF Corporation",
        "Viacom Inc",
        "Viad Corp",
        "Viasystems Group Inc",
        "Vishay Intertechnology Inc",
        "Visteon Corporation",
        "Volt Information Sciences Inc",
        "Vulcan Materials Company",
        "W.R. Berkley Corporation",
        "W.R. Grace & Co",
        "W.W. Grainger Inc",
        "Wachovia Corporation",
        "Wakenhut Corporation",
        "Walgreen Co",
        "Wallace Computer Services Inc",
        "Wal-Mart Stores Inc",
        "Walt Disney Co",
        "Walter Industries Inc",
        "Washington Mutual Inc",
        "Washington Post Co.",
        "Waste Management Inc",
        "Watsco Inc",
        "Weatherford International Inc",
        "Weis Markets Inc.",
        "Wellpoint Health Networks Inc",
        "Wells Fargo & Company",
        "Wendy's International Inc",
        "Werner Enterprises Inc",
        "WESCO International Inc",
        "Western Digital Inc",
        "Western Gas Resources Inc",
        "WestPoint Stevens Inc",
        "Weyerhauser Company",
        "WGL Holdings Inc",
        "Whirlpool Corporation",
        "Whole Foods Market Inc",
        "Willamette Industries Inc.",
        "Williams Companies Inc",
        "Williams Sonoma Inc",
        "Winn Dixie Stores Inc",
        "Wisconsin Energy Corporation",
        "Wm Wrigley Jr Company",
        "World Fuel Services Corporation",
        "WorldCom Inc",
        "Worthington Industries Inc",
        "WPS Resources Corporation",
        "Wyeth",
        "Wyndham International Inc",
        "Xcel Energy Inc",
        "Xerox Corp",
        "Xilinx Inc",
        "XO Communications Inc",
        "Yellow Corporation",
        "York International Corp",
        "Yum Brands Inc.",
        "Zale Corporation",
        "Zions Bancorporation"
      ],

        fileExtension : {
            "raster"    : ["bmp", "gif", "gpl", "ico", "jpeg", "psd", "png", "psp", "raw", "tiff"],
            "vector"    : ["3dv", "amf", "awg", "ai", "cgm", "cdr", "cmx", "dxf", "e2d", "egt", "eps", "fs", "odg", "svg", "xar"],
            "3d"        : ["3dmf", "3dm", "3mf", "3ds", "an8", "aoi", "blend", "cal3d", "cob", "ctm", "iob", "jas", "max", "mb", "mdx", "obj", "x", "x3d"],
            "document"  : ["doc", "docx", "dot", "html", "xml", "odt", "odm", "ott", "csv", "rtf", "tex", "xhtml", "xps"]
        },

        // Data taken from https://github.com/dmfilipenko/timezones.json/blob/master/timezones.json
        timezones: [
                  {
                    "name": "Dateline Standard Time",
                    "abbr": "DST",
                    "offset": -12,
                    "isdst": false,
                    "text": "(UTC-12:00) International Date Line West",
                    "utc": [
                      "Etc/GMT+12"
                    ]
                  },
                  {
                    "name": "UTC-11",
                    "abbr": "U",
                    "offset": -11,
                    "isdst": false,
                    "text": "(UTC-11:00) Coordinated Universal Time-11",
                    "utc": [
                      "Etc/GMT+11",
                      "Pacific/Midway",
                      "Pacific/Niue",
                      "Pacific/Pago_Pago"
                    ]
                  },
                  {
                    "name": "Hawaiian Standard Time",
                    "abbr": "HST",
                    "offset": -10,
                    "isdst": false,
                    "text": "(UTC-10:00) Hawaii",
                    "utc": [
                      "Etc/GMT+10",
                      "Pacific/Honolulu",
                      "Pacific/Johnston",
                      "Pacific/Rarotonga",
                      "Pacific/Tahiti"
                    ]
                  },
                  {
                    "name": "Alaskan Standard Time",
                    "abbr": "AKDT",
                    "offset": -8,
                    "isdst": true,
                    "text": "(UTC-09:00) Alaska",
                    "utc": [
                      "America/Anchorage",
                      "America/Juneau",
                      "America/Nome",
                      "America/Sitka",
                      "America/Yakutat"
                    ]
                  },
                  {
                    "name": "Pacific Standard Time (Mexico)",
                    "abbr": "PDT",
                    "offset": -7,
                    "isdst": true,
                    "text": "(UTC-08:00) Baja California",
                    "utc": [
                      "America/Santa_Isabel"
                    ]
                  },
                  {
                    "name": "Pacific Standard Time",
                    "abbr": "PDT",
                    "offset": -7,
                    "isdst": true,
                    "text": "(UTC-08:00) Pacific Time (US & Canada)",
                    "utc": [
                      "America/Dawson",
                      "America/Los_Angeles",
                      "America/Tijuana",
                      "America/Vancouver",
                      "America/Whitehorse",
                      "PST8PDT"
                    ]
                  },
                  {
                    "name": "US Mountain Standard Time",
                    "abbr": "UMST",
                    "offset": -7,
                    "isdst": false,
                    "text": "(UTC-07:00) Arizona",
                    "utc": [
                      "America/Creston",
                      "America/Dawson_Creek",
                      "America/Hermosillo",
                      "America/Phoenix",
                      "Etc/GMT+7"
                    ]
                  },
                  {
                    "name": "Mountain Standard Time (Mexico)",
                    "abbr": "MDT",
                    "offset": -6,
                    "isdst": true,
                    "text": "(UTC-07:00) Chihuahua, La Paz, Mazatlan",
                    "utc": [
                      "America/Chihuahua",
                      "America/Mazatlan"
                    ]
                  },
                  {
                    "name": "Mountain Standard Time",
                    "abbr": "MDT",
                    "offset": -6,
                    "isdst": true,
                    "text": "(UTC-07:00) Mountain Time (US & Canada)",
                    "utc": [
                      "America/Boise",
                      "America/Cambridge_Bay",
                      "America/Denver",
                      "America/Edmonton",
                      "America/Inuvik",
                      "America/Ojinaga",
                      "America/Yellowknife",
                      "MST7MDT"
                    ]
                  },
                  {
                    "name": "Central America Standard Time",
                    "abbr": "CAST",
                    "offset": -6,
                    "isdst": false,
                    "text": "(UTC-06:00) Central America",
                    "utc": [
                      "America/Belize",
                      "America/Costa_Rica",
                      "America/El_Salvador",
                      "America/Guatemala",
                      "America/Managua",
                      "America/Tegucigalpa",
                      "Etc/GMT+6",
                      "Pacific/Galapagos"
                    ]
                  },
                  {
                    "name": "Central Standard Time",
                    "abbr": "CDT",
                    "offset": -5,
                    "isdst": true,
                    "text": "(UTC-06:00) Central Time (US & Canada)",
                    "utc": [
                      "America/Chicago",
                      "America/Indiana/Knox",
                      "America/Indiana/Tell_City",
                      "America/Matamoros",
                      "America/Menominee",
                      "America/North_Dakota/Beulah",
                      "America/North_Dakota/Center",
                      "America/North_Dakota/New_Salem",
                      "America/Rainy_River",
                      "America/Rankin_Inlet",
                      "America/Resolute",
                      "America/Winnipeg",
                      "CST6CDT"
                    ]
                  },
                  {
                    "name": "Central Standard Time (Mexico)",
                    "abbr": "CDT",
                    "offset": -5,
                    "isdst": true,
                    "text": "(UTC-06:00) Guadalajara, Mexico City, Monterrey",
                    "utc": [
                      "America/Bahia_Banderas",
                      "America/Cancun",
                      "America/Merida",
                      "America/Mexico_City",
                      "America/Monterrey"
                    ]
                  },
                  {
                    "name": "Canada Central Standard Time",
                    "abbr": "CCST",
                    "offset": -6,
                    "isdst": false,
                    "text": "(UTC-06:00) Saskatchewan",
                    "utc": [
                      "America/Regina",
                      "America/Swift_Current"
                    ]
                  },
                  {
                    "name": "SA Pacific Standard Time",
                    "abbr": "SPST",
                    "offset": -5,
                    "isdst": false,
                    "text": "(UTC-05:00) Bogota, Lima, Quito",
                    "utc": [
                      "America/Bogota",
                      "America/Cayman",
                      "America/Coral_Harbour",
                      "America/Eirunepe",
                      "America/Guayaquil",
                      "America/Jamaica",
                      "America/Lima",
                      "America/Panama",
                      "America/Rio_Branco",
                      "Etc/GMT+5"
                    ]
                  },
                  {
                    "name": "Eastern Standard Time",
                    "abbr": "EDT",
                    "offset": -4,
                    "isdst": true,
                    "text": "(UTC-05:00) Eastern Time (US & Canada)",
                    "utc": [
                      "America/Detroit",
                      "America/Havana",
                      "America/Indiana/Petersburg",
                      "America/Indiana/Vincennes",
                      "America/Indiana/Winamac",
                      "America/Iqaluit",
                      "America/Kentucky/Monticello",
                      "America/Louisville",
                      "America/Montreal",
                      "America/Nassau",
                      "America/New_York",
                      "America/Nipigon",
                      "America/Pangnirtung",
                      "America/Port-au-Prince",
                      "America/Thunder_Bay",
                      "America/Toronto",
                      "EST5EDT"
                    ]
                  },
                  {
                    "name": "US Eastern Standard Time",
                    "abbr": "UEDT",
                    "offset": -4,
                    "isdst": true,
                    "text": "(UTC-05:00) Indiana (East)",
                    "utc": [
                      "America/Indiana/Marengo",
                      "America/Indiana/Vevay",
                      "America/Indianapolis"
                    ]
                  },
                  {
                    "name": "Venezuela Standard Time",
                    "abbr": "VST",
                    "offset": -4.5,
                    "isdst": false,
                    "text": "(UTC-04:30) Caracas",
                    "utc": [
                      "America/Caracas"
                    ]
                  },
                  {
                    "name": "Paraguay Standard Time",
                    "abbr": "PST",
                    "offset": -4,
                    "isdst": false,
                    "text": "(UTC-04:00) Asuncion",
                    "utc": [
                      "America/Asuncion"
                    ]
                  },
                  {
                    "name": "Atlantic Standard Time",
                    "abbr": "ADT",
                    "offset": -3,
                    "isdst": true,
                    "text": "(UTC-04:00) Atlantic Time (Canada)",
                    "utc": [
                      "America/Glace_Bay",
                      "America/Goose_Bay",
                      "America/Halifax",
                      "America/Moncton",
                      "America/Thule",
                      "Atlantic/Bermuda"
                    ]
                  },
                  {
                    "name": "Central Brazilian Standard Time",
                    "abbr": "CBST",
                    "offset": -4,
                    "isdst": false,
                    "text": "(UTC-04:00) Cuiaba",
                    "utc": [
                      "America/Campo_Grande",
                      "America/Cuiaba"
                    ]
                  },
                  {
                    "name": "SA Western Standard Time",
                    "abbr": "SWST",
                    "offset": -4,
                    "isdst": false,
                    "text": "(UTC-04:00) Georgetown, La Paz, Manaus, San Juan",
                    "utc": [
                      "America/Anguilla",
                      "America/Antigua",
                      "America/Aruba",
                      "America/Barbados",
                      "America/Blanc-Sablon",
                      "America/Boa_Vista",
                      "America/Curacao",
                      "America/Dominica",
                      "America/Grand_Turk",
                      "America/Grenada",
                      "America/Guadeloupe",
                      "America/Guyana",
                      "America/Kralendijk",
                      "America/La_Paz",
                      "America/Lower_Princes",
                      "America/Manaus",
                      "America/Marigot",
                      "America/Martinique",
                      "America/Montserrat",
                      "America/Port_of_Spain",
                      "America/Porto_Velho",
                      "America/Puerto_Rico",
                      "America/Santo_Domingo",
                      "America/St_Barthelemy",
                      "America/St_Kitts",
                      "America/St_Lucia",
                      "America/St_Thomas",
                      "America/St_Vincent",
                      "America/Tortola",
                      "Etc/GMT+4"
                    ]
                  },
                  {
                    "name": "Pacific SA Standard Time",
                    "abbr": "PSST",
                    "offset": -4,
                    "isdst": false,
                    "text": "(UTC-04:00) Santiago",
                    "utc": [
                      "America/Santiago",
                      "Antarctica/Palmer"
                    ]
                  },
                  {
                    "name": "Newfoundland Standard Time",
                    "abbr": "NDT",
                    "offset": -2.5,
                    "isdst": true,
                    "text": "(UTC-03:30) Newfoundland",
                    "utc": [
                      "America/St_Johns"
                    ]
                  },
                  {
                    "name": "E. South America Standard Time",
                    "abbr": "ESAST",
                    "offset": -3,
                    "isdst": false,
                    "text": "(UTC-03:00) Brasilia",
                    "utc": [
                      "America/Sao_Paulo"
                    ]
                  },
                  {
                    "name": "Argentina Standard Time",
                    "abbr": "AST",
                    "offset": -3,
                    "isdst": false,
                    "text": "(UTC-03:00) Buenos Aires",
                    "utc": [
                      "America/Argentina/La_Rioja",
                      "America/Argentina/Rio_Gallegos",
                      "America/Argentina/Salta",
                      "America/Argentina/San_Juan",
                      "America/Argentina/San_Luis",
                      "America/Argentina/Tucuman",
                      "America/Argentina/Ushuaia",
                      "America/Buenos_Aires",
                      "America/Catamarca",
                      "America/Cordoba",
                      "America/Jujuy",
                      "America/Mendoza"
                    ]
                  },
                  {
                    "name": "SA Eastern Standard Time",
                    "abbr": "SEST",
                    "offset": -3,
                    "isdst": false,
                    "text": "(UTC-03:00) Cayenne, Fortaleza",
                    "utc": [
                      "America/Araguaina",
                      "America/Belem",
                      "America/Cayenne",
                      "America/Fortaleza",
                      "America/Maceio",
                      "America/Paramaribo",
                      "America/Recife",
                      "America/Santarem",
                      "Antarctica/Rothera",
                      "Atlantic/Stanley",
                      "Etc/GMT+3"
                    ]
                  },
                  {
                    "name": "Greenland Standard Time",
                    "abbr": "GDT",
                    "offset": -2,
                    "isdst": true,
                    "text": "(UTC-03:00) Greenland",
                    "utc": [
                      "America/Godthab"
                    ]
                  },
                  {
                    "name": "Montevideo Standard Time",
                    "abbr": "MST",
                    "offset": -3,
                    "isdst": false,
                    "text": "(UTC-03:00) Montevideo",
                    "utc": [
                      "America/Montevideo"
                    ]
                  },
                  {
                    "name": "Bahia Standard Time",
                    "abbr": "BST",
                    "offset": -3,
                    "isdst": false,
                    "text": "(UTC-03:00) Salvador",
                    "utc": [
                      "America/Bahia"
                    ]
                  },
                  {
                    "name": "UTC-02",
                    "abbr": "U",
                    "offset": -2,
                    "isdst": false,
                    "text": "(UTC-02:00) Coordinated Universal Time-02",
                    "utc": [
                      "America/Noronha",
                      "Atlantic/South_Georgia",
                      "Etc/GMT+2"
                    ]
                  },
                  {
                    "name": "Mid-Atlantic Standard Time",
                    "abbr": "MDT",
                    "offset": -1,
                    "isdst": true,
                    "text": "(UTC-02:00) Mid-Atlantic - Old"
                  },
                  {
                    "name": "Azores Standard Time",
                    "abbr": "ADT",
                    "offset": 0,
                    "isdst": true,
                    "text": "(UTC-01:00) Azores",
                    "utc": [
                      "America/Scoresbysund",
                      "Atlantic/Azores"
                    ]
                  },
                  {
                    "name": "Cape Verde Standard Time",
                    "abbr": "CVST",
                    "offset": -1,
                    "isdst": false,
                    "text": "(UTC-01:00) Cape Verde Is.",
                    "utc": [
                      "Atlantic/Cape_Verde",
                      "Etc/GMT+1"
                    ]
                  },
                  {
                    "name": "Morocco Standard Time",
                    "abbr": "MDT",
                    "offset": 1,
                    "isdst": true,
                    "text": "(UTC) Casablanca",
                    "utc": [
                      "Africa/Casablanca",
                      "Africa/El_Aaiun"
                    ]
                  },
                  {
                    "name": "UTC",
                    "abbr": "CUT",
                    "offset": 0,
                    "isdst": false,
                    "text": "(UTC) Coordinated Universal Time",
                    "utc": [
                      "America/Danmarkshavn",
                      "Etc/GMT"
                    ]
                  },
                  {
                    "name": "GMT Standard Time",
                    "abbr": "GDT",
                    "offset": 1,
                    "isdst": true,
                    "text": "(UTC) Dublin, Edinburgh, Lisbon, London",
                    "utc": [
                      "Atlantic/Canary",
                      "Atlantic/Faeroe",
                      "Atlantic/Madeira",
                      "Europe/Dublin",
                      "Europe/Guernsey",
                      "Europe/Isle_of_Man",
                      "Europe/Jersey",
                      "Europe/Lisbon",
                      "Europe/London"
                    ]
                  },
                  {
                    "name": "Greenwich Standard Time",
                    "abbr": "GST",
                    "offset": 0,
                    "isdst": false,
                    "text": "(UTC) Monrovia, Reykjavik",
                    "utc": [
                      "Africa/Abidjan",
                      "Africa/Accra",
                      "Africa/Bamako",
                      "Africa/Banjul",
                      "Africa/Bissau",
                      "Africa/Conakry",
                      "Africa/Dakar",
                      "Africa/Freetown",
                      "Africa/Lome",
                      "Africa/Monrovia",
                      "Africa/Nouakchott",
                      "Africa/Ouagadougou",
                      "Africa/Sao_Tome",
                      "Atlantic/Reykjavik",
                      "Atlantic/St_Helena"
                    ]
                  },
                  {
                    "name": "W. Europe Standard Time",
                    "abbr": "WEDT",
                    "offset": 2,
                    "isdst": true,
                    "text": "(UTC+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna",
                    "utc": [
                      "Arctic/Longyearbyen",
                      "Europe/Amsterdam",
                      "Europe/Andorra",
                      "Europe/Berlin",
                      "Europe/Busingen",
                      "Europe/Gibraltar",
                      "Europe/Luxembourg",
                      "Europe/Malta",
                      "Europe/Monaco",
                      "Europe/Oslo",
                      "Europe/Rome",
                      "Europe/San_Marino",
                      "Europe/Stockholm",
                      "Europe/Vaduz",
                      "Europe/Vatican",
                      "Europe/Vienna",
                      "Europe/Zurich"
                    ]
                  },
                  {
                    "name": "Central Europe Standard Time",
                    "abbr": "CEDT",
                    "offset": 2,
                    "isdst": true,
                    "text": "(UTC+01:00) Belgrade, Bratislava, Budapest, Ljubljana, Prague",
                    "utc": [
                      "Europe/Belgrade",
                      "Europe/Bratislava",
                      "Europe/Budapest",
                      "Europe/Ljubljana",
                      "Europe/Podgorica",
                      "Europe/Prague",
                      "Europe/Tirane"
                    ]
                  },
                  {
                    "name": "Romance Standard Time",
                    "abbr": "RDT",
                    "offset": 2,
                    "isdst": true,
                    "text": "(UTC+01:00) Brussels, Copenhagen, Madrid, Paris",
                    "utc": [
                      "Africa/Ceuta",
                      "Europe/Brussels",
                      "Europe/Copenhagen",
                      "Europe/Madrid",
                      "Europe/Paris"
                    ]
                  },
                  {
                    "name": "Central European Standard Time",
                    "abbr": "CEDT",
                    "offset": 2,
                    "isdst": true,
                    "text": "(UTC+01:00) Sarajevo, Skopje, Warsaw, Zagreb",
                    "utc": [
                      "Europe/Sarajevo",
                      "Europe/Skopje",
                      "Europe/Warsaw",
                      "Europe/Zagreb"
                    ]
                  },
                  {
                    "name": "W. Central Africa Standard Time",
                    "abbr": "WCAST",
                    "offset": 1,
                    "isdst": false,
                    "text": "(UTC+01:00) West Central Africa",
                    "utc": [
                      "Africa/Algiers",
                      "Africa/Bangui",
                      "Africa/Brazzaville",
                      "Africa/Douala",
                      "Africa/Kinshasa",
                      "Africa/Lagos",
                      "Africa/Libreville",
                      "Africa/Luanda",
                      "Africa/Malabo",
                      "Africa/Ndjamena",
                      "Africa/Niamey",
                      "Africa/Porto-Novo",
                      "Africa/Tunis",
                      "Etc/GMT-1"
                    ]
                  },
                  {
                    "name": "Namibia Standard Time",
                    "abbr": "NST",
                    "offset": 1,
                    "isdst": false,
                    "text": "(UTC+01:00) Windhoek",
                    "utc": [
                      "Africa/Windhoek"
                    ]
                  },
                  {
                    "name": "GTB Standard Time",
                    "abbr": "GDT",
                    "offset": 3,
                    "isdst": true,
                    "text": "(UTC+02:00) Athens, Bucharest",
                    "utc": [
                      "Asia/Nicosia",
                      "Europe/Athens",
                      "Europe/Bucharest",
                      "Europe/Chisinau"
                    ]
                  },
                  {
                    "name": "Middle East Standard Time",
                    "abbr": "MEDT",
                    "offset": 3,
                    "isdst": true,
                    "text": "(UTC+02:00) Beirut",
                    "utc": [
                      "Asia/Beirut"
                    ]
                  },
                  {
                    "name": "Egypt Standard Time",
                    "abbr": "EST",
                    "offset": 2,
                    "isdst": false,
                    "text": "(UTC+02:00) Cairo",
                    "utc": [
                      "Africa/Cairo"
                    ]
                  },
                  {
                    "name": "Syria Standard Time",
                    "abbr": "SDT",
                    "offset": 3,
                    "isdst": true,
                    "text": "(UTC+02:00) Damascus",
                    "utc": [
                      "Asia/Damascus"
                    ]
                  },
                  {
                    "name": "E. Europe Standard Time",
                    "abbr": "EEDT",
                    "offset": 3,
                    "isdst": true,
                    "text": "(UTC+02:00) E. Europe"
                  },
                  {
                    "name": "South Africa Standard Time",
                    "abbr": "SAST",
                    "offset": 2,
                    "isdst": false,
                    "text": "(UTC+02:00) Harare, Pretoria",
                    "utc": [
                      "Africa/Blantyre",
                      "Africa/Bujumbura",
                      "Africa/Gaborone",
                      "Africa/Harare",
                      "Africa/Johannesburg",
                      "Africa/Kigali",
                      "Africa/Lubumbashi",
                      "Africa/Lusaka",
                      "Africa/Maputo",
                      "Africa/Maseru",
                      "Africa/Mbabane",
                      "Etc/GMT-2"
                    ]
                  },
                  {
                    "name": "FLE Standard Time",
                    "abbr": "FDT",
                    "offset": 3,
                    "isdst": true,
                    "text": "(UTC+02:00) Helsinki, Kyiv, Riga, Sofia, Tallinn, Vilnius",
                    "utc": [
                      "Europe/Helsinki",
                      "Europe/Kiev",
                      "Europe/Mariehamn",
                      "Europe/Riga",
                      "Europe/Sofia",
                      "Europe/Tallinn",
                      "Europe/Uzhgorod",
                      "Europe/Vilnius",
                      "Europe/Zaporozhye"
                    ]
                  },
                  {
                    "name": "Turkey Standard Time",
                    "abbr": "TDT",
                    "offset": 3,
                    "isdst": true,
                    "text": "(UTC+02:00) Istanbul",
                    "utc": [
                      "Europe/Istanbul"
                    ]
                  },
                  {
                    "name": "Israel Standard Time",
                    "abbr": "JDT",
                    "offset": 3,
                    "isdst": true,
                    "text": "(UTC+02:00) Jerusalem",
                    "utc": [
                      "Asia/Jerusalem"
                    ]
                  },
                  {
                    "name": "Libya Standard Time",
                    "abbr": "LST",
                    "offset": 2,
                    "isdst": false,
                    "text": "(UTC+02:00) Tripoli",
                    "utc": [
                      "Africa/Tripoli"
                    ]
                  },
                  {
                    "name": "Jordan Standard Time",
                    "abbr": "JST",
                    "offset": 3,
                    "isdst": false,
                    "text": "(UTC+03:00) Amman",
                    "utc": [
                      "Asia/Amman"
                    ]
                  },
                  {
                    "name": "Arabic Standard Time",
                    "abbr": "AST",
                    "offset": 3,
                    "isdst": false,
                    "text": "(UTC+03:00) Baghdad",
                    "utc": [
                      "Asia/Baghdad"
                    ]
                  },
                  {
                    "name": "Kaliningrad Standard Time",
                    "abbr": "KST",
                    "offset": 3,
                    "isdst": false,
                    "text": "(UTC+03:00) Kaliningrad, Minsk",
                    "utc": [
                      "Europe/Kaliningrad",
                      "Europe/Minsk"
                    ]
                  },
                  {
                    "name": "Arab Standard Time",
                    "abbr": "AST",
                    "offset": 3,
                    "isdst": false,
                    "text": "(UTC+03:00) Kuwait, Riyadh",
                    "utc": [
                      "Asia/Aden",
                      "Asia/Bahrain",
                      "Asia/Kuwait",
                      "Asia/Qatar",
                      "Asia/Riyadh"
                    ]
                  },
                  {
                    "name": "E. Africa Standard Time",
                    "abbr": "EAST",
                    "offset": 3,
                    "isdst": false,
                    "text": "(UTC+03:00) Nairobi",
                    "utc": [
                      "Africa/Addis_Ababa",
                      "Africa/Asmera",
                      "Africa/Dar_es_Salaam",
                      "Africa/Djibouti",
                      "Africa/Juba",
                      "Africa/Kampala",
                      "Africa/Khartoum",
                      "Africa/Mogadishu",
                      "Africa/Nairobi",
                      "Antarctica/Syowa",
                      "Etc/GMT-3",
                      "Indian/Antananarivo",
                      "Indian/Comoro",
                      "Indian/Mayotte"
                    ]
                  },
                  {
                    "name": "Iran Standard Time",
                    "abbr": "IDT",
                    "offset": 4.5,
                    "isdst": true,
                    "text": "(UTC+03:30) Tehran",
                    "utc": [
                      "Asia/Tehran"
                    ]
                  },
                  {
                    "name": "Arabian Standard Time",
                    "abbr": "AST",
                    "offset": 4,
                    "isdst": false,
                    "text": "(UTC+04:00) Abu Dhabi, Muscat",
                    "utc": [
                      "Asia/Dubai",
                      "Asia/Muscat",
                      "Etc/GMT-4"
                    ]
                  },
                  {
                    "name": "Azerbaijan Standard Time",
                    "abbr": "ADT",
                    "offset": 5,
                    "isdst": true,
                    "text": "(UTC+04:00) Baku",
                    "utc": [
                      "Asia/Baku"
                    ]
                  },
                  {
                    "name": "Russian Standard Time",
                    "abbr": "RST",
                    "offset": 4,
                    "isdst": false,
                    "text": "(UTC+04:00) Moscow, St. Petersburg, Volgograd",
                    "utc": [
                      "Europe/Moscow",
                      "Europe/Samara",
                      "Europe/Simferopol",
                      "Europe/Volgograd"
                    ]
                  },
                  {
                    "name": "Mauritius Standard Time",
                    "abbr": "MST",
                    "offset": 4,
                    "isdst": false,
                    "text": "(UTC+04:00) Port Louis",
                    "utc": [
                      "Indian/Mahe",
                      "Indian/Mauritius",
                      "Indian/Reunion"
                    ]
                  },
                  {
                    "name": "Georgian Standard Time",
                    "abbr": "GST",
                    "offset": 4,
                    "isdst": false,
                    "text": "(UTC+04:00) Tbilisi",
                    "utc": [
                      "Asia/Tbilisi"
                    ]
                  },
                  {
                    "name": "Caucasus Standard Time",
                    "abbr": "CST",
                    "offset": 4,
                    "isdst": false,
                    "text": "(UTC+04:00) Yerevan",
                    "utc": [
                      "Asia/Yerevan"
                    ]
                  },
                  {
                    "name": "Afghanistan Standard Time",
                    "abbr": "AST",
                    "offset": 4.5,
                    "isdst": false,
                    "text": "(UTC+04:30) Kabul",
                    "utc": [
                      "Asia/Kabul"
                    ]
                  },
                  {
                    "name": "West Asia Standard Time",
                    "abbr": "WAST",
                    "offset": 5,
                    "isdst": false,
                    "text": "(UTC+05:00) Ashgabat, Tashkent",
                    "utc": [
                      "Antarctica/Mawson",
                      "Asia/Aqtau",
                      "Asia/Aqtobe",
                      "Asia/Ashgabat",
                      "Asia/Dushanbe",
                      "Asia/Oral",
                      "Asia/Samarkand",
                      "Asia/Tashkent",
                      "Etc/GMT-5",
                      "Indian/Kerguelen",
                      "Indian/Maldives"
                    ]
                  },
                  {
                    "name": "Pakistan Standard Time",
                    "abbr": "PST",
                    "offset": 5,
                    "isdst": false,
                    "text": "(UTC+05:00) Islamabad, Karachi",
                    "utc": [
                      "Asia/Karachi"
                    ]
                  },
                  {
                    "name": "India Standard Time",
                    "abbr": "IST",
                    "offset": 5.5,
                    "isdst": false,
                    "text": "(UTC+05:30) Chennai, Kolkata, Mumbai, New Delhi",
                    "utc": [
                      "Asia/Calcutta"
                    ]
                  },
                  {
                    "name": "Sri Lanka Standard Time",
                    "abbr": "SLST",
                    "offset": 5.5,
                    "isdst": false,
                    "text": "(UTC+05:30) Sri Jayawardenepura",
                    "utc": [
                      "Asia/Colombo"
                    ]
                  },
                  {
                    "name": "Nepal Standard Time",
                    "abbr": "NST",
                    "offset": 5.75,
                    "isdst": false,
                    "text": "(UTC+05:45) Kathmandu",
                    "utc": [
                      "Asia/Katmandu"
                    ]
                  },
                  {
                    "name": "Central Asia Standard Time",
                    "abbr": "CAST",
                    "offset": 6,
                    "isdst": false,
                    "text": "(UTC+06:00) Astana",
                    "utc": [
                      "Antarctica/Vostok",
                      "Asia/Almaty",
                      "Asia/Bishkek",
                      "Asia/Qyzylorda",
                      "Asia/Urumqi",
                      "Etc/GMT-6",
                      "Indian/Chagos"
                    ]
                  },
                  {
                    "name": "Bangladesh Standard Time",
                    "abbr": "BST",
                    "offset": 6,
                    "isdst": false,
                    "text": "(UTC+06:00) Dhaka",
                    "utc": [
                      "Asia/Dhaka",
                      "Asia/Thimphu"
                    ]
                  },
                  {
                    "name": "Ekaterinburg Standard Time",
                    "abbr": "EST",
                    "offset": 6,
                    "isdst": false,
                    "text": "(UTC+06:00) Ekaterinburg",
                    "utc": [
                      "Asia/Yekaterinburg"
                    ]
                  },
                  {
                    "name": "Myanmar Standard Time",
                    "abbr": "MST",
                    "offset": 6.5,
                    "isdst": false,
                    "text": "(UTC+06:30) Yangon (Rangoon)",
                    "utc": [
                      "Asia/Rangoon",
                      "Indian/Cocos"
                    ]
                  },
                  {
                    "name": "SE Asia Standard Time",
                    "abbr": "SAST",
                    "offset": 7,
                    "isdst": false,
                    "text": "(UTC+07:00) Bangkok, Hanoi, Jakarta",
                    "utc": [
                      "Antarctica/Davis",
                      "Asia/Bangkok",
                      "Asia/Hovd",
                      "Asia/Jakarta",
                      "Asia/Phnom_Penh",
                      "Asia/Pontianak",
                      "Asia/Saigon",
                      "Asia/Vientiane",
                      "Etc/GMT-7",
                      "Indian/Christmas"
                    ]
                  },
                  {
                    "name": "N. Central Asia Standard Time",
                    "abbr": "NCAST",
                    "offset": 7,
                    "isdst": false,
                    "text": "(UTC+07:00) Novosibirsk",
                    "utc": [
                      "Asia/Novokuznetsk",
                      "Asia/Novosibirsk",
                      "Asia/Omsk"
                    ]
                  },
                  {
                    "name": "China Standard Time",
                    "abbr": "CST",
                    "offset": 8,
                    "isdst": false,
                    "text": "(UTC+08:00) Beijing, Chongqing, Hong Kong, Urumqi",
                    "utc": [
                      "Asia/Hong_Kong",
                      "Asia/Macau",
                      "Asia/Shanghai"
                    ]
                  },
                  {
                    "name": "North Asia Standard Time",
                    "abbr": "NAST",
                    "offset": 8,
                    "isdst": false,
                    "text": "(UTC+08:00) Krasnoyarsk",
                    "utc": [
                      "Asia/Krasnoyarsk"
                    ]
                  },
                  {
                    "name": "Singapore Standard Time",
                    "abbr": "MPST",
                    "offset": 8,
                    "isdst": false,
                    "text": "(UTC+08:00) Kuala Lumpur, Singapore",
                    "utc": [
                      "Asia/Brunei",
                      "Asia/Kuala_Lumpur",
                      "Asia/Kuching",
                      "Asia/Makassar",
                      "Asia/Manila",
                      "Asia/Singapore",
                      "Etc/GMT-8"
                    ]
                  },
                  {
                    "name": "W. Australia Standard Time",
                    "abbr": "WAST",
                    "offset": 8,
                    "isdst": false,
                    "text": "(UTC+08:00) Perth",
                    "utc": [
                      "Antarctica/Casey",
                      "Australia/Perth"
                    ]
                  },
                  {
                    "name": "Taipei Standard Time",
                    "abbr": "TST",
                    "offset": 8,
                    "isdst": false,
                    "text": "(UTC+08:00) Taipei",
                    "utc": [
                      "Asia/Taipei"
                    ]
                  },
                  {
                    "name": "Ulaanbaatar Standard Time",
                    "abbr": "UST",
                    "offset": 8,
                    "isdst": false,
                    "text": "(UTC+08:00) Ulaanbaatar",
                    "utc": [
                      "Asia/Choibalsan",
                      "Asia/Ulaanbaatar"
                    ]
                  },
                  {
                    "name": "North Asia East Standard Time",
                    "abbr": "NAEST",
                    "offset": 9,
                    "isdst": false,
                    "text": "(UTC+09:00) Irkutsk",
                    "utc": [
                      "Asia/Irkutsk"
                    ]
                  },
                  {
                    "name": "Tokyo Standard Time",
                    "abbr": "TST",
                    "offset": 9,
                    "isdst": false,
                    "text": "(UTC+09:00) Osaka, Sapporo, Tokyo",
                    "utc": [
                      "Asia/Dili",
                      "Asia/Jayapura",
                      "Asia/Tokyo",
                      "Etc/GMT-9",
                      "Pacific/Palau"
                    ]
                  },
                  {
                    "name": "Korea Standard Time",
                    "abbr": "KST",
                    "offset": 9,
                    "isdst": false,
                    "text": "(UTC+09:00) Seoul",
                    "utc": [
                      "Asia/Pyongyang",
                      "Asia/Seoul"
                    ]
                  },
                  {
                    "name": "Cen. Australia Standard Time",
                    "abbr": "CAST",
                    "offset": 9.5,
                    "isdst": false,
                    "text": "(UTC+09:30) Adelaide",
                    "utc": [
                      "Australia/Adelaide",
                      "Australia/Broken_Hill"
                    ]
                  },
                  {
                    "name": "AUS Central Standard Time",
                    "abbr": "ACST",
                    "offset": 9.5,
                    "isdst": false,
                    "text": "(UTC+09:30) Darwin",
                    "utc": [
                      "Australia/Darwin"
                    ]
                  },
                  {
                    "name": "E. Australia Standard Time",
                    "abbr": "EAST",
                    "offset": 10,
                    "isdst": false,
                    "text": "(UTC+10:00) Brisbane",
                    "utc": [
                      "Australia/Brisbane",
                      "Australia/Lindeman"
                    ]
                  },
                  {
                    "name": "AUS Eastern Standard Time",
                    "abbr": "AEST",
                    "offset": 10,
                    "isdst": false,
                    "text": "(UTC+10:00) Canberra, Melbourne, Sydney",
                    "utc": [
                      "Australia/Melbourne",
                      "Australia/Sydney"
                    ]
                  },
                  {
                    "name": "West Pacific Standard Time",
                    "abbr": "WPST",
                    "offset": 10,
                    "isdst": false,
                    "text": "(UTC+10:00) Guam, Port Moresby",
                    "utc": [
                      "Antarctica/DumontDUrville",
                      "Etc/GMT-10",
                      "Pacific/Guam",
                      "Pacific/Port_Moresby",
                      "Pacific/Saipan",
                      "Pacific/Truk"
                    ]
                  },
                  {
                    "name": "Tasmania Standard Time",
                    "abbr": "TST",
                    "offset": 10,
                    "isdst": false,
                    "text": "(UTC+10:00) Hobart",
                    "utc": [
                      "Australia/Currie",
                      "Australia/Hobart"
                    ]
                  },
                  {
                    "name": "Yakutsk Standard Time",
                    "abbr": "YST",
                    "offset": 10,
                    "isdst": false,
                    "text": "(UTC+10:00) Yakutsk",
                    "utc": [
                      "Asia/Chita",
                      "Asia/Khandyga",
                      "Asia/Yakutsk"
                    ]
                  },
                  {
                    "name": "Central Pacific Standard Time",
                    "abbr": "CPST",
                    "offset": 11,
                    "isdst": false,
                    "text": "(UTC+11:00) Solomon Is., New Caledonia",
                    "utc": [
                      "Antarctica/Macquarie",
                      "Etc/GMT-11",
                      "Pacific/Efate",
                      "Pacific/Guadalcanal",
                      "Pacific/Kosrae",
                      "Pacific/Noumea",
                      "Pacific/Ponape"
                    ]
                  },
                  {
                    "name": "Vladivostok Standard Time",
                    "abbr": "VST",
                    "offset": 11,
                    "isdst": false,
                    "text": "(UTC+11:00) Vladivostok",
                    "utc": [
                      "Asia/Sakhalin",
                      "Asia/Ust-Nera",
                      "Asia/Vladivostok"
                    ]
                  },
                  {
                    "name": "New Zealand Standard Time",
                    "abbr": "NZST",
                    "offset": 12,
                    "isdst": false,
                    "text": "(UTC+12:00) Auckland, Wellington",
                    "utc": [
                      "Antarctica/McMurdo",
                      "Pacific/Auckland"
                    ]
                  },
                  {
                    "name": "UTC+12",
                    "abbr": "U",
                    "offset": 12,
                    "isdst": false,
                    "text": "(UTC+12:00) Coordinated Universal Time+12",
                    "utc": [
                      "Etc/GMT-12",
                      "Pacific/Funafuti",
                      "Pacific/Kwajalein",
                      "Pacific/Majuro",
                      "Pacific/Nauru",
                      "Pacific/Tarawa",
                      "Pacific/Wake",
                      "Pacific/Wallis"
                    ]
                  },
                  {
                    "name": "Fiji Standard Time",
                    "abbr": "FST",
                    "offset": 12,
                    "isdst": false,
                    "text": "(UTC+12:00) Fiji",
                    "utc": [
                      "Pacific/Fiji"
                    ]
                  },
                  {
                    "name": "Magadan Standard Time",
                    "abbr": "MST",
                    "offset": 12,
                    "isdst": false,
                    "text": "(UTC+12:00) Magadan",
                    "utc": [
                      "Asia/Anadyr",
                      "Asia/Kamchatka",
                      "Asia/Magadan",
                      "Asia/Srednekolymsk"
                    ]
                  },
                  {
                    "name": "Kamchatka Standard Time",
                    "abbr": "KDT",
                    "offset": 13,
                    "isdst": true,
                    "text": "(UTC+12:00) Petropavlovsk-Kamchatsky - Old"
                  },
                  {
                    "name": "Tonga Standard Time",
                    "abbr": "TST",
                    "offset": 13,
                    "isdst": false,
                    "text": "(UTC+13:00) Nuku'alofa",
                    "utc": [
                      "Etc/GMT-13",
                      "Pacific/Enderbury",
                      "Pacific/Fakaofo",
                      "Pacific/Tongatapu"
                    ]
                  },
                  {
                    "name": "Samoa Standard Time",
                    "abbr": "SST",
                    "offset": 13,
                    "isdst": false,
                    "text": "(UTC+13:00) Samoa",
                    "utc": [
                      "Pacific/Apia"
                    ]
                  }
                ],
        //List source: http://answers.google.com/answers/threadview/id/589312.html
        profession: [
            "Airline Pilot",
            "Academic Team",
            "Accountant",
            "Account Executive",
            "Actor",
            "Actuary",
            "Acquisition Analyst",
            "Administrative Asst.",
            "Administrative Analyst",
            "Administrator",
            "Advertising Director",
            "Aerospace Engineer",
            "Agent",
            "Agricultural Inspector",
            "Agricultural Scientist",
            "Air Traffic Controller",
            "Animal Trainer",
            "Anthropologist",
            "Appraiser",
            "Architect",
            "Art Director",
            "Artist",
            "Astronomer",
            "Athletic Coach",
            "Auditor",
            "Author",
            "Baker",
            "Banker",
            "Bankruptcy Attorney",
            "Benefits Manager",
            "Biologist",
            "Bio-feedback Specialist",
            "Biomedical Engineer",
            "Biotechnical Researcher",
            "Broadcaster",
            "Broker",
            "Building Manager",
            "Building Contractor",
            "Building Inspector",
            "Business Analyst",
            "Business Planner",
            "Business Manager",
            "Buyer",
            "Call Center Manager",
            "Career Counselor",
            "Cash Manager",
            "Ceramic Engineer",
            "Chief Executive Officer",
            "Chief Operation Officer",
            "Chef",
            "Chemical Engineer",
            "Chemist",
            "Child Care Manager",
            "Chief Medical Officer",
            "Chiropractor",
            "Cinematographer",
            "City Housing Manager",
            "City Manager",
            "Civil Engineer",
            "Claims Manager",
            "Clinical Research Assistant",
            "Collections Manager.",
            "Compliance Manager",
            "Comptroller",
            "Computer Manager",
            "Commercial Artist",
            "Communications Affairs Director",
            "Communications Director",
            "Communications Engineer",
            "Compensation Analyst",
            "Computer Programmer",
            "Computer Ops. Manager",
            "Computer Engineer",
            "Computer Operator",
            "Computer Graphics Specialist",
            "Construction Engineer",
            "Construction Manager",
            "Consultant",
            "Consumer Relations Manager",
            "Contract Administrator",
            "Copyright Attorney",
            "Copywriter",
            "Corporate Planner",
            "Corrections Officer",
            "Cosmetologist",
            "Credit Analyst",
            "Cruise Director",
            "Chief Information Officer",
            "Chief Technology Officer",
            "Customer Service Manager",
            "Cryptologist",
            "Dancer",
            "Data Security Manager",
            "Database Manager",
            "Day Care Instructor",
            "Dentist",
            "Designer",
            "Design Engineer",
            "Desktop Publisher",
            "Developer",
            "Development Officer",
            "Diamond Merchant",
            "Dietitian",
            "Direct Marketer",
            "Director",
            "Distribution Manager",
            "Diversity Manager",
            "Economist",
            "EEO Compliance Manager",
            "Editor",
            "Education Adminator",
            "Electrical Engineer",
            "Electro Optical Engineer",
            "Electronics Engineer",
            "Embassy Management",
            "Employment Agent",
            "Engineer Technician",
            "Entrepreneur",
            "Environmental Analyst",
            "Environmental Attorney",
            "Environmental Engineer",
            "Environmental Specialist",
            "Escrow Officer",
            "Estimator",
            "Executive Assistant",
            "Executive Director",
            "Executive Recruiter",
            "Facilities Manager",
            "Family Counselor",
            "Fashion Events Manager",
            "Fashion Merchandiser",
            "Fast Food Manager",
            "Film Producer",
            "Film Production Assistant",
            "Financial Analyst",
            "Financial Planner",
            "Financier",
            "Fine Artist",
            "Wildlife Specialist",
            "Fitness Consultant",
            "Flight Attendant",
            "Flight Engineer",
            "Floral Designer",
            "Food & Beverage Director",
            "Food Service Manager",
            "Forestry Technician",
            "Franchise Management",
            "Franchise Sales",
            "Fraud Investigator",
            "Freelance Writer",
            "Fund Raiser",
            "General Manager",
            "Geologist",
            "General Counsel",
            "Geriatric Specialist",
            "Gerontologist",
            "Glamour Photographer",
            "Golf Club Manager",
            "Gourmet Chef",
            "Graphic Designer",
            "Grounds Keeper",
            "Hazardous Waste Manager",
            "Health Care Manager",
            "Health Therapist",
            "Health Service Administrator",
            "Hearing Officer",
            "Home Economist",
            "Horticulturist",
            "Hospital Administrator",
            "Hotel Manager",
            "Human Resources Manager",
            "Importer",
            "Industrial Designer",
            "Industrial Engineer",
            "Information Director",
            "Inside Sales",
            "Insurance Adjuster",
            "Interior Decorator",
            "Internal Controls Director",
            "International Acct.",
            "International Courier",
            "International Lawyer",
            "Interpreter",
            "Investigator",
            "Investment Banker",
            "Investment Manager",
            "IT Architect",
            "IT Project Manager",
            "IT Systems Analyst",
            "Jeweler",
            "Joint Venture Manager",
            "Journalist",
            "Labor Negotiator",
            "Labor Organizer",
            "Labor Relations Manager",
            "Lab Services Director",
            "Lab Technician",
            "Land Developer",
            "Landscape Architect",
            "Law Enforcement Officer",
            "Lawyer",
            "Lead Software Engineer",
            "Lead Software Test Engineer",
            "Leasing Manager",
            "Legal Secretary",
            "Library Manager",
            "Litigation Attorney",
            "Loan Officer",
            "Lobbyist",
            "Logistics Manager",
            "Maintenance Manager",
            "Management Consultant",
            "Managed Care Director",
            "Managing Partner",
            "Manufacturing Director",
            "Manpower Planner",
            "Marine Biologist",
            "Market Res. Analyst",
            "Marketing Director",
            "Materials Manager",
            "Mathematician",
            "Membership Chairman",
            "Mechanic",
            "Mechanical Engineer",
            "Media Buyer",
            "Medical Investor",
            "Medical Secretary",
            "Medical Technician",
            "Mental Health Counselor",
            "Merchandiser",
            "Metallurgical Engineering",
            "Meteorologist",
            "Microbiologist",
            "MIS Manager",
            "Motion Picture Director",
            "Multimedia Director",
            "Musician",
            "Network Administrator",
            "Network Specialist",
            "Network Operator",
            "New Product Manager",
            "Novelist",
            "Nuclear Engineer",
            "Nuclear Specialist",
            "Nutritionist",
            "Nursing Administrator",
            "Occupational Therapist",
            "Oceanographer",
            "Office Manager",
            "Operations Manager",
            "Operations Research Director",
            "Optical Technician",
            "Optometrist",
            "Organizational Development Manager",
            "Outplacement Specialist",
            "Paralegal",
            "Park Ranger",
            "Patent Attorney",
            "Payroll Specialist",
            "Personnel Specialist",
            "Petroleum Engineer",
            "Pharmacist",
            "Photographer",
            "Physical Therapist",
            "Physician",
            "Physician Assistant",
            "Physicist",
            "Planning Director",
            "Podiatrist",
            "Political Analyst",
            "Political Scientist",
            "Politician",
            "Portfolio Manager",
            "Preschool Management",
            "Preschool Teacher",
            "Principal",
            "Private Banker",
            "Private Investigator",
            "Probation Officer",
            "Process Engineer",
            "Producer",
            "Product Manager",
            "Product Engineer",
            "Production Engineer",
            "Production Planner",
            "Professional Athlete",
            "Professional Coach",
            "Professor",
            "Project Engineer",
            "Project Manager",
            "Program Manager",
            "Property Manager",
            "Public Administrator",
            "Public Safety Director",
            "PR Specialist",
            "Publisher",
            "Purchasing Agent",
            "Publishing Director",
            "Quality Assurance Specialist",
            "Quality Control Engineer",
            "Quality Control Inspector",
            "Radiology Manager",
            "Railroad Engineer",
            "Real Estate Broker",
            "Recreational Director",
            "Recruiter",
            "Redevelopment Specialist",
            "Regulatory Affairs Manager",
            "Registered Nurse",
            "Rehabilitation Counselor",
            "Relocation Manager",
            "Reporter",
            "Research Specialist",
            "Restaurant Manager",
            "Retail Store Manager",
            "Risk Analyst",
            "Safety Engineer",
            "Sales Engineer",
            "Sales Trainer",
            "Sales Promotion Manager",
            "Sales Representative",
            "Sales Manager",
            "Service Manager",
            "Sanitation Engineer",
            "Scientific Programmer",
            "Scientific Writer",
            "Securities Analyst",
            "Security Consultant",
            "Security Director",
            "Seminar Presenter",
            "Ship's Officer",
            "Singer",
            "Social Director",
            "Social Program Planner",
            "Social Research",
            "Social Scientist",
            "Social Worker",
            "Sociologist",
            "Software Developer",
            "Software Engineer",
            "Software Test Engineer",
            "Soil Scientist",
            "Special Events Manager",
            "Special Education Teacher",
            "Special Projects Director",
            "Speech Pathologist",
            "Speech Writer",
            "Sports Event Manager",
            "Statistician",
            "Store Manager",
            "Strategic Alliance Director",
            "Strategic Planning Director",
            "Stress Reduction Specialist",
            "Stockbroker",
            "Surveyor",
            "Structural Engineer",
            "Superintendent",
            "Supply Chain Director",
            "System Engineer",
            "Systems Analyst",
            "Systems Programmer",
            "System Administrator",
            "Tax Specialist",
            "Teacher",
            "Technical Support Specialist",
            "Technical Illustrator",
            "Technical Writer",
            "Technology Director",
            "Telecom Analyst",
            "Telemarketer",
            "Theatrical Director",
            "Title Examiner",
            "Tour Escort",
            "Tour Guide Director",
            "Traffic Manager",
            "Trainer Translator",
            "Transportation Manager",
            "Travel Agent",
            "Treasurer",
            "TV Programmer",
            "Underwriter",
            "Union Representative",
            "University Administrator",
            "University Dean",
            "Urban Planner",
            "Veterinarian",
            "Vendor Relations Director",
            "Viticulturist",
            "Warehouse Manager"
        ]
    };

    var o_hasOwnProperty = Object.prototype.hasOwnProperty;
    var o_keys = (Object.keys || function(obj) {
      var result = [];
      for (var key in obj) {
        if (o_hasOwnProperty.call(obj, key)) {
          result.push(key);
        }
      }

      return result;
    });

    function _copyObject(source, target) {
      var keys = o_keys(source);
      var key;

      for (var i = 0, l = keys.length; i < l; i++) {
        key = keys[i];
        target[key] = source[key] || target[key];
      }
    }

    function _copyArray(source, target) {
      for (var i = 0, l = source.length; i < l; i++) {
        target[i] = source[i];
      }
    }

    function copyObject(source, _target) {
        var isArray = Array.isArray(source);
        var target = _target || (isArray ? new Array(source.length) : {});

        if (isArray) {
          _copyArray(source, target);
        } else {
          _copyObject(source, target);
        }

        return target;
    }

    /** Get the data based on key**/
    Chance.prototype.get = function (name) {
        return copyObject(data[name]);
    };

    // Mac Address
    Chance.prototype.mac_address = function(options){
        // typically mac addresses are separated by ":"
        // however they can also be separated by "-"
        // the network variant uses a dot every fourth byte

        options = initOptions(options);
        if(!options.separator) {
            options.separator =  options.networkVersion ? "." : ":";
        }

        var mac_pool="ABCDEF1234567890",
            mac = "";
        if(!options.networkVersion) {
            mac = this.n(this.string, 6, { pool: mac_pool, length:2 }).join(options.separator);
        } else {
            mac = this.n(this.string, 3, { pool: mac_pool, length:4 }).join(options.separator);
        }

        return mac;
    };

    Chance.prototype.normal = function (options) {
        options = initOptions(options, {mean : 0, dev : 1, pool : []});

        testRange(
            options.pool.constructor !== Array,
            "Chance: The pool option must be a valid array."
        );
        testRange(
            typeof options.mean !== 'number',
            "Chance: Mean (mean) must be a number"
        );
        testRange(
            typeof options.dev !== 'number',
            "Chance: Standard deviation (dev) must be a number"
        );

        // If a pool has been passed, then we are returning an item from that pool,
        // using the normal distribution settings that were passed in
        if (options.pool.length > 0) {
            return this.normal_pool(options);
        }

        // The Marsaglia Polar method
        var s, u, v, norm,
            mean = options.mean,
            dev = options.dev;

        do {
            // U and V are from the uniform distribution on (-1, 1)
            u = this.random() * 2 - 1;
            v = this.random() * 2 - 1;

            s = u * u + v * v;
        } while (s >= 1);

        // Compute the standard normal variate
        norm = u * Math.sqrt(-2 * Math.log(s) / s);

        // Shape and scale
        return dev * norm + mean;
    };

    Chance.prototype.normal_pool = function(options) {
        var performanceCounter = 0;
        do {
            var idx = Math.round(this.normal({ mean: options.mean, dev: options.dev }));
            if (idx < options.pool.length && idx >= 0) {
                return options.pool[idx];
            } else {
                performanceCounter++;
            }
        } while(performanceCounter < 100);

        throw new RangeError("Chance: Your pool is too small for the given mean and standard deviation. Please adjust.");
    };

    Chance.prototype.radio = function (options) {
        // Initial Letter (Typically Designated by Side of Mississippi River)
        options = initOptions(options, {side : "?"});
        var fl = "";
        switch (options.side.toLowerCase()) {
        case "east":
        case "e":
            fl = "W";
            break;
        case "west":
        case "w":
            fl = "K";
            break;
        default:
            fl = this.character({pool: "KW"});
            break;
        }

        return fl + this.character({alpha: true, casing: "upper"}) +
                this.character({alpha: true, casing: "upper"}) +
                this.character({alpha: true, casing: "upper"});
    };

    // Set the data as key and data or the data map
    Chance.prototype.set = function (name, values) {
        if (typeof name === "string") {
            data[name] = values;
        } else {
            data = copyObject(name, data);
        }
    };

    Chance.prototype.tv = function (options) {
        return this.radio(options);
    };

    // ID number for Brazil companies
    Chance.prototype.cnpj = function () {
        var n = this.n(this.natural, 8, { max: 9 });
        var d1 = 2+n[7]*6+n[6]*7+n[5]*8+n[4]*9+n[3]*2+n[2]*3+n[1]*4+n[0]*5;
        d1 = 11 - (d1 % 11);
        if (d1>=10){
            d1 = 0;
        }
        var d2 = d1*2+3+n[7]*7+n[6]*8+n[5]*9+n[4]*2+n[3]*3+n[2]*4+n[1]*5+n[0]*6;
        d2 = 11 - (d2 % 11);
        if (d2>=10){
            d2 = 0;
        }
        return ''+n[0]+n[1]+'.'+n[2]+n[3]+n[4]+'.'+n[5]+n[6]+n[7]+'/0001-'+d1+d2;
    };

    // -- End Miscellaneous --

    Chance.prototype.mersenne_twister = function (seed) {
        return new MersenneTwister(seed);
    };

    Chance.prototype.blueimp_md5 = function () {
        return new BlueImpMD5();
    };

    // Mersenne Twister from https://gist.github.com/banksean/300494
    /*
       A C-program for MT19937, with initialization improved 2002/1/26.
       Coded by Takuji Nishimura and Makoto Matsumoto.

       Before using, initialize the state by using init_genrand(seed)
       or init_by_array(init_key, key_length).

       Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
       All rights reserved.

       Redistribution and use in source and binary forms, with or without
       modification, are permitted provided that the following conditions
       are met:

       1. Redistributions of source code must retain the above copyright
       notice, this list of conditions and the following disclaimer.

       2. Redistributions in binary form must reproduce the above copyright
       notice, this list of conditions and the following disclaimer in the
       documentation and/or other materials provided with the distribution.

       3. The names of its contributors may not be used to endorse or promote
       products derived from this software without specific prior written
       permission.

       THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
       "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
       LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
       A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
       CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
       EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
       PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
       PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
       LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
       NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
       SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


       Any feedback is very welcome.
       http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html
       email: m-mat @ math.sci.hiroshima-u.ac.jp (remove space)
     */
    var MersenneTwister = function (seed) {
        if (seed === undefined) {
            // kept random number same size as time used previously to ensure no unexpected results downstream
            seed = Math.floor(Math.random()*Math.pow(10,13));
        }
        /* Period parameters */
        this.N = 624;
        this.M = 397;
        this.MATRIX_A = 0x9908b0df;   /* constant vector a */
        this.UPPER_MASK = 0x80000000; /* most significant w-r bits */
        this.LOWER_MASK = 0x7fffffff; /* least significant r bits */

        this.mt = new Array(this.N); /* the array for the state vector */
        this.mti = this.N + 1; /* mti==N + 1 means mt[N] is not initialized */

        this.init_genrand(seed);
    };

    /* initializes mt[N] with a seed */
    MersenneTwister.prototype.init_genrand = function (s) {
        this.mt[0] = s >>> 0;
        for (this.mti = 1; this.mti < this.N; this.mti++) {
            s = this.mt[this.mti - 1] ^ (this.mt[this.mti - 1] >>> 30);
            this.mt[this.mti] = (((((s & 0xffff0000) >>> 16) * 1812433253) << 16) + (s & 0x0000ffff) * 1812433253) + this.mti;
            /* See Knuth TAOCP Vol2. 3rd Ed. P.106 for multiplier. */
            /* In the previous versions, MSBs of the seed affect   */
            /* only MSBs of the array mt[].                        */
            /* 2002/01/09 modified by Makoto Matsumoto             */
            this.mt[this.mti] >>>= 0;
            /* for >32 bit machines */
        }
    };

    /* initialize by an array with array-length */
    /* init_key is the array for initializing keys */
    /* key_length is its length */
    /* slight change for C++, 2004/2/26 */
    MersenneTwister.prototype.init_by_array = function (init_key, key_length) {
        var i = 1, j = 0, k, s;
        this.init_genrand(19650218);
        k = (this.N > key_length ? this.N : key_length);
        for (; k; k--) {
            s = this.mt[i - 1] ^ (this.mt[i - 1] >>> 30);
            this.mt[i] = (this.mt[i] ^ (((((s & 0xffff0000) >>> 16) * 1664525) << 16) + ((s & 0x0000ffff) * 1664525))) + init_key[j] + j; /* non linear */
            this.mt[i] >>>= 0; /* for WORDSIZE > 32 machines */
            i++;
            j++;
            if (i >= this.N) { this.mt[0] = this.mt[this.N - 1]; i = 1; }
            if (j >= key_length) { j = 0; }
        }
        for (k = this.N - 1; k; k--) {
            s = this.mt[i - 1] ^ (this.mt[i - 1] >>> 30);
            this.mt[i] = (this.mt[i] ^ (((((s & 0xffff0000) >>> 16) * 1566083941) << 16) + (s & 0x0000ffff) * 1566083941)) - i; /* non linear */
            this.mt[i] >>>= 0; /* for WORDSIZE > 32 machines */
            i++;
            if (i >= this.N) { this.mt[0] = this.mt[this.N - 1]; i = 1; }
        }

        this.mt[0] = 0x80000000; /* MSB is 1; assuring non-zero initial array */
    };

    /* generates a random number on [0,0xffffffff]-interval */
    MersenneTwister.prototype.genrand_int32 = function () {
        var y;
        var mag01 = new Array(0x0, this.MATRIX_A);
        /* mag01[x] = x * MATRIX_A  for x=0,1 */

        if (this.mti >= this.N) { /* generate N words at one time */
            var kk;

            if (this.mti === this.N + 1) {   /* if init_genrand() has not been called, */
                this.init_genrand(5489); /* a default initial seed is used */
            }
            for (kk = 0; kk < this.N - this.M; kk++) {
                y = (this.mt[kk]&this.UPPER_MASK)|(this.mt[kk + 1]&this.LOWER_MASK);
                this.mt[kk] = this.mt[kk + this.M] ^ (y >>> 1) ^ mag01[y & 0x1];
            }
            for (;kk < this.N - 1; kk++) {
                y = (this.mt[kk]&this.UPPER_MASK)|(this.mt[kk + 1]&this.LOWER_MASK);
                this.mt[kk] = this.mt[kk + (this.M - this.N)] ^ (y >>> 1) ^ mag01[y & 0x1];
            }
            y = (this.mt[this.N - 1]&this.UPPER_MASK)|(this.mt[0]&this.LOWER_MASK);
            this.mt[this.N - 1] = this.mt[this.M - 1] ^ (y >>> 1) ^ mag01[y & 0x1];

            this.mti = 0;
        }

        y = this.mt[this.mti++];

        /* Tempering */
        y ^= (y >>> 11);
        y ^= (y << 7) & 0x9d2c5680;
        y ^= (y << 15) & 0xefc60000;
        y ^= (y >>> 18);

        return y >>> 0;
    };

    /* generates a random number on [0,0x7fffffff]-interval */
    MersenneTwister.prototype.genrand_int31 = function () {
        return (this.genrand_int32() >>> 1);
    };

    /* generates a random number on [0,1]-real-interval */
    MersenneTwister.prototype.genrand_real1 = function () {
        return this.genrand_int32() * (1.0 / 4294967295.0);
        /* divided by 2^32-1 */
    };

    /* generates a random number on [0,1)-real-interval */
    MersenneTwister.prototype.random = function () {
        return this.genrand_int32() * (1.0 / 4294967296.0);
        /* divided by 2^32 */
    };

    /* generates a random number on (0,1)-real-interval */
    MersenneTwister.prototype.genrand_real3 = function () {
        return (this.genrand_int32() + 0.5) * (1.0 / 4294967296.0);
        /* divided by 2^32 */
    };

    /* generates a random number on [0,1) with 53-bit resolution*/
    MersenneTwister.prototype.genrand_res53 = function () {
        var a = this.genrand_int32()>>>5, b = this.genrand_int32()>>>6;
        return (a * 67108864.0 + b) * (1.0 / 9007199254740992.0);
    };

    // BlueImp MD5 hashing algorithm from https://github.com/blueimp/JavaScript-MD5
    var BlueImpMD5 = function () {};

    BlueImpMD5.prototype.VERSION = '1.0.1';

    /*
    * Add integers, wrapping at 2^32. This uses 16-bit operations internally
    * to work around bugs in some JS interpreters.
    */
    BlueImpMD5.prototype.safe_add = function safe_add(x, y) {
        var lsw = (x & 0xFFFF) + (y & 0xFFFF),
            msw = (x >> 16) + (y >> 16) + (lsw >> 16);
        return (msw << 16) | (lsw & 0xFFFF);
    };

    /*
    * Bitwise rotate a 32-bit number to the left.
    */
    BlueImpMD5.prototype.bit_roll = function (num, cnt) {
        return (num << cnt) | (num >>> (32 - cnt));
    };

    /*
    * These functions implement the five basic operations the algorithm uses.
    */
    BlueImpMD5.prototype.md5_cmn = function (q, a, b, x, s, t) {
        return this.safe_add(this.bit_roll(this.safe_add(this.safe_add(a, q), this.safe_add(x, t)), s), b);
    };
    BlueImpMD5.prototype.md5_ff = function (a, b, c, d, x, s, t) {
        return this.md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
    };
    BlueImpMD5.prototype.md5_gg = function (a, b, c, d, x, s, t) {
        return this.md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
    };
    BlueImpMD5.prototype.md5_hh = function (a, b, c, d, x, s, t) {
        return this.md5_cmn(b ^ c ^ d, a, b, x, s, t);
    };
    BlueImpMD5.prototype.md5_ii = function (a, b, c, d, x, s, t) {
        return this.md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
    };

    /*
    * Calculate the MD5 of an array of little-endian words, and a bit length.
    */
    BlueImpMD5.prototype.binl_md5 = function (x, len) {
        /* append padding */
        x[len >> 5] |= 0x80 << (len % 32);
        x[(((len + 64) >>> 9) << 4) + 14] = len;

        var i, olda, oldb, oldc, oldd,
            a =  1732584193,
            b = -271733879,
            c = -1732584194,
            d =  271733878;

        for (i = 0; i < x.length; i += 16) {
            olda = a;
            oldb = b;
            oldc = c;
            oldd = d;

            a = this.md5_ff(a, b, c, d, x[i],       7, -680876936);
            d = this.md5_ff(d, a, b, c, x[i +  1], 12, -389564586);
            c = this.md5_ff(c, d, a, b, x[i +  2], 17,  606105819);
            b = this.md5_ff(b, c, d, a, x[i +  3], 22, -1044525330);
            a = this.md5_ff(a, b, c, d, x[i +  4],  7, -176418897);
            d = this.md5_ff(d, a, b, c, x[i +  5], 12,  1200080426);
            c = this.md5_ff(c, d, a, b, x[i +  6], 17, -1473231341);
            b = this.md5_ff(b, c, d, a, x[i +  7], 22, -45705983);
            a = this.md5_ff(a, b, c, d, x[i +  8],  7,  1770035416);
            d = this.md5_ff(d, a, b, c, x[i +  9], 12, -1958414417);
            c = this.md5_ff(c, d, a, b, x[i + 10], 17, -42063);
            b = this.md5_ff(b, c, d, a, x[i + 11], 22, -1990404162);
            a = this.md5_ff(a, b, c, d, x[i + 12],  7,  1804603682);
            d = this.md5_ff(d, a, b, c, x[i + 13], 12, -40341101);
            c = this.md5_ff(c, d, a, b, x[i + 14], 17, -1502002290);
            b = this.md5_ff(b, c, d, a, x[i + 15], 22,  1236535329);

            a = this.md5_gg(a, b, c, d, x[i +  1],  5, -165796510);
            d = this.md5_gg(d, a, b, c, x[i +  6],  9, -1069501632);
            c = this.md5_gg(c, d, a, b, x[i + 11], 14,  643717713);
            b = this.md5_gg(b, c, d, a, x[i],      20, -373897302);
            a = this.md5_gg(a, b, c, d, x[i +  5],  5, -701558691);
            d = this.md5_gg(d, a, b, c, x[i + 10],  9,  38016083);
            c = this.md5_gg(c, d, a, b, x[i + 15], 14, -660478335);
            b = this.md5_gg(b, c, d, a, x[i +  4], 20, -405537848);
            a = this.md5_gg(a, b, c, d, x[i +  9],  5,  568446438);
            d = this.md5_gg(d, a, b, c, x[i + 14],  9, -1019803690);
            c = this.md5_gg(c, d, a, b, x[i +  3], 14, -187363961);
            b = this.md5_gg(b, c, d, a, x[i +  8], 20,  1163531501);
            a = this.md5_gg(a, b, c, d, x[i + 13],  5, -1444681467);
            d = this.md5_gg(d, a, b, c, x[i +  2],  9, -51403784);
            c = this.md5_gg(c, d, a, b, x[i +  7], 14,  1735328473);
            b = this.md5_gg(b, c, d, a, x[i + 12], 20, -1926607734);

            a = this.md5_hh(a, b, c, d, x[i +  5],  4, -378558);
            d = this.md5_hh(d, a, b, c, x[i +  8], 11, -2022574463);
            c = this.md5_hh(c, d, a, b, x[i + 11], 16,  1839030562);
            b = this.md5_hh(b, c, d, a, x[i + 14], 23, -35309556);
            a = this.md5_hh(a, b, c, d, x[i +  1],  4, -1530992060);
            d = this.md5_hh(d, a, b, c, x[i +  4], 11,  1272893353);
            c = this.md5_hh(c, d, a, b, x[i +  7], 16, -155497632);
            b = this.md5_hh(b, c, d, a, x[i + 10], 23, -1094730640);
            a = this.md5_hh(a, b, c, d, x[i + 13],  4,  681279174);
            d = this.md5_hh(d, a, b, c, x[i],      11, -358537222);
            c = this.md5_hh(c, d, a, b, x[i +  3], 16, -722521979);
            b = this.md5_hh(b, c, d, a, x[i +  6], 23,  76029189);
            a = this.md5_hh(a, b, c, d, x[i +  9],  4, -640364487);
            d = this.md5_hh(d, a, b, c, x[i + 12], 11, -421815835);
            c = this.md5_hh(c, d, a, b, x[i + 15], 16,  530742520);
            b = this.md5_hh(b, c, d, a, x[i +  2], 23, -995338651);

            a = this.md5_ii(a, b, c, d, x[i],       6, -198630844);
            d = this.md5_ii(d, a, b, c, x[i +  7], 10,  1126891415);
            c = this.md5_ii(c, d, a, b, x[i + 14], 15, -1416354905);
            b = this.md5_ii(b, c, d, a, x[i +  5], 21, -57434055);
            a = this.md5_ii(a, b, c, d, x[i + 12],  6,  1700485571);
            d = this.md5_ii(d, a, b, c, x[i +  3], 10, -1894986606);
            c = this.md5_ii(c, d, a, b, x[i + 10], 15, -1051523);
            b = this.md5_ii(b, c, d, a, x[i +  1], 21, -2054922799);
            a = this.md5_ii(a, b, c, d, x[i +  8],  6,  1873313359);
            d = this.md5_ii(d, a, b, c, x[i + 15], 10, -30611744);
            c = this.md5_ii(c, d, a, b, x[i +  6], 15, -1560198380);
            b = this.md5_ii(b, c, d, a, x[i + 13], 21,  1309151649);
            a = this.md5_ii(a, b, c, d, x[i +  4],  6, -145523070);
            d = this.md5_ii(d, a, b, c, x[i + 11], 10, -1120210379);
            c = this.md5_ii(c, d, a, b, x[i +  2], 15,  718787259);
            b = this.md5_ii(b, c, d, a, x[i +  9], 21, -343485551);

            a = this.safe_add(a, olda);
            b = this.safe_add(b, oldb);
            c = this.safe_add(c, oldc);
            d = this.safe_add(d, oldd);
        }
        return [a, b, c, d];
    };

    /*
    * Convert an array of little-endian words to a string
    */
    BlueImpMD5.prototype.binl2rstr = function (input) {
        var i,
            output = '';
        for (i = 0; i < input.length * 32; i += 8) {
            output += String.fromCharCode((input[i >> 5] >>> (i % 32)) & 0xFF);
        }
        return output;
    };

    /*
    * Convert a raw string to an array of little-endian words
    * Characters >255 have their high-byte silently ignored.
    */
    BlueImpMD5.prototype.rstr2binl = function (input) {
        var i,
            output = [];
        output[(input.length >> 2) - 1] = undefined;
        for (i = 0; i < output.length; i += 1) {
            output[i] = 0;
        }
        for (i = 0; i < input.length * 8; i += 8) {
            output[i >> 5] |= (input.charCodeAt(i / 8) & 0xFF) << (i % 32);
        }
        return output;
    };

    /*
    * Calculate the MD5 of a raw string
    */
    BlueImpMD5.prototype.rstr_md5 = function (s) {
        return this.binl2rstr(this.binl_md5(this.rstr2binl(s), s.length * 8));
    };

    /*
    * Calculate the HMAC-MD5, of a key and some data (raw strings)
    */
    BlueImpMD5.prototype.rstr_hmac_md5 = function (key, data) {
        var i,
            bkey = this.rstr2binl(key),
            ipad = [],
            opad = [],
            hash;
        ipad[15] = opad[15] = undefined;
        if (bkey.length > 16) {
            bkey = this.binl_md5(bkey, key.length * 8);
        }
        for (i = 0; i < 16; i += 1) {
            ipad[i] = bkey[i] ^ 0x36363636;
            opad[i] = bkey[i] ^ 0x5C5C5C5C;
        }
        hash = this.binl_md5(ipad.concat(this.rstr2binl(data)), 512 + data.length * 8);
        return this.binl2rstr(this.binl_md5(opad.concat(hash), 512 + 128));
    };

    /*
    * Convert a raw string to a hex string
    */
    BlueImpMD5.prototype.rstr2hex = function (input) {
        var hex_tab = '0123456789abcdef',
            output = '',
            x,
            i;
        for (i = 0; i < input.length; i += 1) {
            x = input.charCodeAt(i);
            output += hex_tab.charAt((x >>> 4) & 0x0F) +
                hex_tab.charAt(x & 0x0F);
        }
        return output;
    };

    /*
    * Encode a string as utf-8
    */
    BlueImpMD5.prototype.str2rstr_utf8 = function (input) {
        return unescape(encodeURIComponent(input));
    };

    /*
    * Take string arguments and return either raw or hex encoded strings
    */
    BlueImpMD5.prototype.raw_md5 = function (s) {
        return this.rstr_md5(this.str2rstr_utf8(s));
    };
    BlueImpMD5.prototype.hex_md5 = function (s) {
        return this.rstr2hex(this.raw_md5(s));
    };
    BlueImpMD5.prototype.raw_hmac_md5 = function (k, d) {
        return this.rstr_hmac_md5(this.str2rstr_utf8(k), this.str2rstr_utf8(d));
    };
    BlueImpMD5.prototype.hex_hmac_md5 = function (k, d) {
        return this.rstr2hex(this.raw_hmac_md5(k, d));
    };

    BlueImpMD5.prototype.md5 = function (string, key, raw) {
        if (!key) {
            if (!raw) {
                return this.hex_md5(string);
            }

            return this.raw_md5(string);
        }

        if (!raw) {
            return this.hex_hmac_md5(key, string);
        }

        return this.raw_hmac_md5(key, string);
    };

    // CommonJS module
    {
        if ('object' !== 'undefined' && module.exports) {
            exports = module.exports = Chance;
        }
        exports.Chance = Chance;
    }

    // Register as an anonymous AMD module
    if (typeof undefined === 'function' && undefined.amd) {
        undefined([], function () {
            return Chance;
        });
    }

    // if there is a importsScrips object define chance for worker
    // allows worker to use full Chance functionality with seed
    if (typeof importScripts !== 'undefined') {
        chance = new Chance();
        self.Chance = Chance;
    }

    // If there is a window object, that at least has a document property,
    // instantiate and define chance on the window
    if (typeof window === "object" && typeof window.document === "object") {
        window.Chance = Chance;
        window.chance = new Chance();
    }
})();
});

var chance_2 = chance_1.Chance;

/**
 * Try to merge all items in os with their successors.
 *
 * Some transformations (like delete) fragment items.
 * Item(c: 'ab') + Delete(1,1) + Delete(0, 1) -> Item(c: 'a',deleted);Item(c: 'b',deleted)
 *
 * This functions merges the fragmented nodes together:
 * Item(c: 'a',deleted);Item(c: 'b',deleted) -> Item(c: 'ab', deleted)
 *
 * TODO: The Tree implementation does not support deletions in-spot.
 *       This is why all deletions must be performed after the traversal.
 *
 */
function defragmentItemContent (y) {
  const os = y.os;
  if (os.length < 2) {
    return
  }
  let deletes = [];
  let node = os.findSmallestNode();
  let next = node.next();
  while (next !== null) {
    let a = node.val;
    let b = next.val;
    if (
      (a instanceof ItemJSON || a instanceof ItemString) &&
      a.constructor === b.constructor &&
      a._deleted === b._deleted &&
      a._right === b &&
      (new ID(a._id.user, a._id.clock + a._length)).equals(b._id)
    ) {
      a._right = b._right;
      if (a instanceof ItemJSON) {
        a._content = a._content.concat(b._content);
      } else if (a instanceof ItemString) {
        a._content += b._content;
      }
      // delete b later
      deletes.push(b._id);
      // do not iterate node!
      // !(node = next)
    } else {
      // not able to merge node, get next node
      node = next;
    }
    // update next
    next = next.next();
  }
  for (let i = deletes.length - 1; i >= 0; i--) {
    os.delete(deletes[i]);
  }
}

const Y$1 = Y$2;

Y$1.extend(extendTestConnector);


const connector = { name: 'test', url: 'http://localhost:1234' };

function getStateSet (y) {
  let ss = {};
  for (let [user, clock] of y.ss.state) {
    ss[user] = clock;
  }
  return ss
}

function getDeleteSet (y) {
  var ds = {};
  y.ds.iterate(null, null, function (n) {
    var user = n._id.user;
    var counter = n._id.clock;
    var len = n.len;
    var gc = n.gc;
    var dv = ds[user];
    if (dv === void 0) {
      dv = [];
      ds[user] = dv;
    }
    dv.push([counter, len, gc]);
  });
  return ds
}





/*
 * 1. reconnect and flush all
 * 2. user 0 gc
 * 3. get type content
 * 4. disconnect & reconnect all (so gc is propagated)
 * 5. compare os, ds, ss
 */
async function compareUsers (t, users) {
  await Promise.all(users.map(u => u.reconnect()));
  if (users[0].connector.testRoom == null) {
    await wait(100);
  }
  await flushAll(t, users);
  await wait();
  await flushAll(t, users);
  await wait();
  await flushAll(t, users);
  await wait();
  await flushAll(t, users);

  var userArrayValues = users.map(u => u.get('array', Y$1.Array).toJSON().map(val => JSON.stringify(val)));
  var userMapValues = users.map(u => u.get('map', Y$1.Map).toJSON());
  var userXmlValues = users.map(u => u.get('xml', Y$1.Xml).toString());

  var data = users.map(u => {
    defragmentItemContent(u);
    var data = {};
    let ops = [];
    u.os.iterate(null, null, function (op) {
      const json = {
        id: op._id,
        left: op._left === null ? null : op._left._lastId,
        right: op._right === null ? null : op._right._id,
        length: op._length,
        deleted: op._deleted,
        parent: op._parent._id
      };
      if (op instanceof ItemJSON || op instanceof ItemString) {
        json.content = op._content;
      }
      ops.push(json);
    });
    data.os = ops;
    data.ds = getDeleteSet(u);
    data.ss = getStateSet(u);
    return data
  });
  for (var i = 0; i < data.length - 1; i++) {
    await t.asyncGroup(async () => {
      t.compare(userArrayValues[i], userArrayValues[i + 1], 'array types');
      t.compare(userMapValues[i], userMapValues[i + 1], 'map types');
      t.compare(userXmlValues[i], userXmlValues[i + 1], 'xml types');
      t.compare(data[i].os, data[i + 1].os, 'os');
      t.compare(data[i].ds, data[i + 1].ds, 'ds');
      t.compare(data[i].ss, data[i + 1].ss, 'ss');
    }, `Compare user${i} with user${i + 1}`);
  }
  users.map(u => u.destroy());
}

async function initArrays (t, opts) {
  var result = {
    users: []
  };
  var chance = opts.chance || new chance_1(t.getSeed() * 1000000000);
  var conn = Object.assign({ room: 'debugging_' + t.name, generateUserId: false, testContext: t, chance }, connector);
  for (let i = 0; i < opts.users; i++) {
    let connOpts;
    if (i === 0) {
      connOpts = Object.assign({ role: 'master' }, conn);
    } else {
      connOpts = Object.assign({ role: 'slave' }, conn);
    }
    let y = new Y$1({
      _userID: i, // evil hackery, don't try this at home
      connector: connOpts
    });
    result.users.push(y);
    result['array' + i] = y.define('array', Y$1.Array);
    result['map' + i] = y.define('map', Y$1.Map);
    result['xml' + i] = y.define('xml', Y$1.XmlElement);
    y.get('xml', Y$1.Xml).setDomFilter(function (d, attrs) {
      if (d.nodeName === 'HIDDEN') {
        return null
      } else {
        return attrs.filter(a => a !== 'hidden')
      }
    });
    y.on('afterTransaction', function () {
      for (let missing of y._missingStructs.values()) {
        if (Array.from(missing.values()).length > 0) {
          console.error(new Error('Test check in "afterTransaction": missing should be empty!'));
        }
      }
    });
  }
  result.array0.delete(0, result.array0.length);
  if (result.users[0].connector.testRoom != null) {
    // flush for sync if test-connector
    await result.users[0].connector.testRoom.flushAll(result.users);
  }
  await Promise.all(result.users.map(u => {
    return new Promise(function (resolve) {
      u.connector.whenSynced(resolve);
    })
  }));
  await flushAll(t, result.users);
  return result
}

async function flushAll (t, users) {
  // users = users.filter(u => u.connector.isSynced)
  if (users.length === 0) {
    return
  }
  await wait(10);
  if (users[0].connector.testRoom != null) {
    // use flushAll method specified in Test Connector
    await users[0].connector.testRoom.flushAll(users);
  } else {
    var flushCounter = users[0].get('flushHelper', Y$1.Map).get('0') || 0;
    flushCounter++;
    await Promise.all(users.map(async (u, i) => {
      // wait for all users to set the flush counter to the same value
      await new Promise(resolve => {
        function observer () {
          var allUsersReceivedUpdate = true;
          for (var i = 0; i < users.length; i++) {
            if (u.get('flushHelper', Y$1.Map).get(i + '') !== flushCounter) {
              allUsersReceivedUpdate = false;
              break
            }
          }
          if (allUsersReceivedUpdate) {
            resolve();
          }
        }
        u.get('flushHelper', Y$1.Map).observe(observer);
        u.get('flushHelper').set(i + '', flushCounter);
      });
    }));
  }
}

async function flushSome (t, users) {
  if (users[0].connector.testRoom == null) {
    // if not test-connector, wait for some time for operations to arrive
    await wait(100);
  }
}

function wait (t) {
  return new Promise(function (resolve) {
    setTimeout(resolve, t != null ? t : 100);
  })
}

async function applyRandomTests (t, mods, iterations) {
  const chance = new chance_1(t.getSeed() * 1000000000);
  var initInformation = await initArrays(t, { users: 5, chance: chance });
  let { users } = initInformation;
  for (var i = 0; i < iterations; i++) {
    if (chance.bool({likelihood: 10})) {
      // 10% chance to disconnect/reconnect a user
      // we make sure that the first users always is connected
      let user = chance.pickone(users.slice(1));
      if (user.connector.isSynced) {
        if (users.filter(u => u.connector.isSynced).length > 1) {
          // make sure that at least one user remains in the room
          await user.disconnect();
          if (users[0].connector.testRoom == null) {
            await wait(100);
          }
        }
      } else {
        await user.reconnect();
        if (users[0].connector.testRoom == null) {
          await wait(100);
        }
        await new Promise(function (resolve) {
          user.connector.whenSynced(resolve);
        });
      }
    } else if (chance.bool({likelihood: 5})) {
      // 20%*!prev chance to flush all & garbagecollect
      // TODO: We do not gc all users as this does not work yet
      // await garbageCollectUsers(t, users)
      await flushAll(t, users);
      // await users[0].db.emptyGarbageCollector()
      await flushAll(t, users);
    } else if (chance.bool({likelihood: 10})) {
      // 20%*!prev chance to flush some operations
      await flushSome(t, users);
    }
    let user = chance.pickone(users);
    var test = chance.pickone(mods);
    test(t, user, chance);
  }
  await compareUsers(t, users);
  return initInformation
}

var index$1 = function (str) {
	return encodeURIComponent(str).replace(/[!'()*]/g, function (c) {
		return '%' + c.charCodeAt(0).toString(16).toUpperCase();
	});
};

/*
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 index$3 = 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;
};

function encoderForArrayFormat(opts) {
	switch (opts.arrayFormat) {
		case 'index':
			return function (key, value, index) {
				return value === null ? [
					encode(key, opts),
					'[',
					index,
					']'
				].join('') : [
					encode(key, opts),
					'[',
					encode(index, opts),
					']=',
					encode(value, opts)
				].join('');
			};

		case 'bracket':
			return function (key, value) {
				return value === null ? encode(key, opts) : [
					encode(key, opts),
					'[]=',
					encode(value, opts)
				].join('');
			};

		default:
			return function (key, value) {
				return value === null ? encode(key, opts) : [
					encode(key, opts),
					'=',
					encode(value, opts)
				].join('');
			};
	}
}

function parserForArrayFormat(opts) {
	var result;

	switch (opts.arrayFormat) {
		case 'index':
			return function (key, value, accumulator) {
				result = /\[(\d*)\]$/.exec(key);

				key = key.replace(/\[\d*\]$/, '');

				if (!result) {
					accumulator[key] = value;
					return;
				}

				if (accumulator[key] === undefined) {
					accumulator[key] = {};
				}

				accumulator[key][result[1]] = value;
			};

		case 'bracket':
			return function (key, value, accumulator) {
				result = /(\[\])$/.exec(key);
				key = key.replace(/\[\]$/, '');

				if (!result) {
					accumulator[key] = value;
					return;
				} else if (accumulator[key] === undefined) {
					accumulator[key] = [value];
					return;
				}

				accumulator[key] = [].concat(accumulator[key], value);
			};

		default:
			return function (key, value, accumulator) {
				if (accumulator[key] === undefined) {
					accumulator[key] = value;
					return;
				}

				accumulator[key] = [].concat(accumulator[key], value);
			};
	}
}

function encode(value, opts) {
	if (opts.encode) {
		return opts.strict ? index$1(value) : encodeURIComponent(value);
	}

	return value;
}

function keysSorter(input) {
	if (Array.isArray(input)) {
		return input.sort();
	} else if (typeof input === 'object') {
		return keysSorter(Object.keys(input)).sort(function (a, b) {
			return Number(a) - Number(b);
		}).map(function (key) {
			return input[key];
		});
	}

	return input;
}

var extract = function (str) {
	return str.split('?')[1] || '';
};

var parse$1 = function (str, opts) {
	opts = index$3({arrayFormat: 'none'}, opts);

	var formatter = parserForArrayFormat(opts);

	// Create an object with no prototype
	// https://github.com/sindresorhus/query-string/issues/47
	var ret = Object.create(null);

	if (typeof str !== 'string') {
		return ret;
	}

	str = str.trim().replace(/^(\?|#|&)/, '');

	if (!str) {
		return ret;
	}

	str.split('&').forEach(function (param) {
		var parts = param.replace(/\+/g, ' ').split('=');
		// Firefox (pre 40) decodes `%3D` to `=`
		// https://github.com/sindresorhus/query-string/pull/37
		var key = parts.shift();
		var val = parts.length > 0 ? parts.join('=') : undefined;

		// missing `=` should be `null`:
		// http://w3.org/TR/2012/WD-url-20120524/#collect-url-parameters
		val = val === undefined ? null : decodeURIComponent(val);

		formatter(decodeURIComponent(key), val, ret);
	});

	return Object.keys(ret).sort().reduce(function (result, key) {
		var val = ret[key];
		if (Boolean(val) && typeof val === 'object' && !Array.isArray(val)) {
			// Sort object keys, not values
			result[key] = keysSorter(val);
		} else {
			result[key] = val;
		}

		return result;
	}, Object.create(null));
};

var stringify = function (obj, opts) {
	var defaults = {
		encode: true,
		strict: true,
		arrayFormat: 'none'
	};

	opts = index$3(defaults, opts);

	var formatter = encoderForArrayFormat(opts);

	return obj ? Object.keys(obj).sort().map(function (key) {
		var val = obj[key];

		if (val === undefined) {
			return '';
		}

		if (val === null) {
			return encode(key, opts);
		}

		if (Array.isArray(val)) {
			var result = [];

			val.slice().forEach(function (val2) {
				if (val2 === undefined) {
					return;
				}

				result.push(formatter(key, val2, result.length));
			});

			return result.join('&');
		}

		return encode(key, opts) + '=' + encode(val, opts);
	}).filter(function (x) {
		return x.length > 0;
	}).join('&') : '';
};

var index = {
	extract: extract,
	parse: parse$1,
	stringify: stringify
};

/* global location */

function cloneDeep (o) { return JSON.parse(JSON.stringify(o)) }

const browserSupport =
  console.group != null;

function createTestLink (params) {
  if (typeof location !== 'undefined') {
    var query = index.parse(location.search);
    delete query.test;
    delete query.seed;
    delete query.args;
    delete query.repeat;
    for (var name in params) {
      if (params[name] != null) {
        query[name] = params[name];
      }
    }
    return location.protocol + '//' + location.host + location.pathname + '?' + index.stringify(query) + location.hash
  }
}

/* globals location */

class TestHandler {
  constructor () {
    this.repeatingRun = 0;
    this.tests = {};
    if (typeof location !== 'undefined') {
      this.opts = index.parse(location.search);
      if (this.opts.case != null) {
        this.opts.case = Number(this.opts.case);
      }
      if (this.opts.repeat === 'true') {
        this.opts.repeat = true;
      } else if (this.opts.repeat === 'false') {
        this.opts.repeat = false;
      }
    } else {
      this.opts = {};
    }
    this.opts.repeat = this.opts.repeat !== false;
  }
  getRandomSeed () {
    return this.opts.seed || null
  }
  getTestList () {
    return Object.keys(this.tests).map(name => this.tests[name])
  }
  isTestRunnig () {
    return this.getTestList().some(test => test.status === 'running')
  }
  isSequentialTestRunning () {
    return this.getTestList().some(test => !test.isParallel() && test.status === 'running')
  }
  isParallelTestRunning () {
    return this.getTestList().some(test => test.isParallel() && test.status === 'running')
  }
  get numberOfTests () {
    return this.getTestList().length
  }
  get numberOfCompletedTests () {
    return this.getTestList().filter(test => test.status === 'done').length
  }
  get numberOfSuccessfullTests () {
    return this.getTestList().filter(test => test.failed === false && test.status === 'done').length
  }
  register (test) {
    if (test.name == null) {
      throw new Error(`
      Each test must be defined by a unique function name!
      E.g. \`test('test description', async function uniqueName () { .. })\`
      `
    )
    }
    if (this.tests[test.name] != null) {
      throw new Error(`
        Each test must be defined by a unique function name!
        => \`test('${test.description}', async function ${test.name} () { .. })\` is already registered!
        `
      )
    }
    if (this.opts.test == null || test.name.indexOf(this.opts.test) >= 0) {
      this.tests[test.name] = test;
      if (!this.isTestRunnig() || (test.isParallel() && this.isParallelTestRunning())) {
        // only if no test is running, or if parallel tests are already running
        test.run();
      }
    }
  }
  _runNextSequentialTest () {
    let nextSequential = this.getTestList().find(
      t => t.status === 'pending' && !t.isParallel()
    );
    if (nextSequential != null) {
      nextSequential.run();
      return true
    } else {
      return false
    }
  }
  _runNextParallelTests () {
    let nextParallels = this.getTestList().filter(
      t => t.status === 'pending' && t.isParallel()
    );
    if (nextParallels.length > 0) {
      nextParallels.map(t => t.run());
      return true
    } else {
      return false
    }
  }
  testCompleted (test) {
    this._runNextParallelTests();
    if (!this.isTestRunnig()) {
      this._runNextSequentialTest();
      if (!this.isSequentialTestRunning()) {
        this.done();
      }
    }
  }
  _runRepeatingTests () {
    let repeatingTests = this.getTestList().filter(t => t.isRepeating());
    if (repeatingTests.length > 0 && this.opts.repeat) {
      this.repeatingRun++;
      console.log(`%cRunning ${repeatingTests.length} tests again because they use random values.. (${this.repeatingRun}. repeating run)`, 'font-weight:bold');
      this.tests = {};
      repeatingTests.forEach(t => {
        this.register(t.clone());
      });
      this.testCompleted();
    }
  }
  done () {
    if (this.numberOfTests === this.numberOfCompletedTests) {
      if (this.numberOfTests === this.numberOfSuccessfullTests) {
        if (browserSupport) {
          console.log('\n%cAll tests passed!', 'font-weight:bold');
          console.log('%c ',
            'font-size: 1px; padding: 60px 80px; background-size: 170px 120px; line-height: 120px; background-image: url(https://cloud.githubusercontent.com/assets/5553757/25725585/ee1e2ac0-3120-11e7-9401-323c153a99f1.gif)'
          );
          this._runRepeatingTests();
        } else {
          console.log('\n -- All tests passed! --');
        }
      } else {
        if (browserSupport) {
          console.log(`\n%cPassed: ${this.numberOfSuccessfullTests} %cFailed: ${this.numberOfTests - this.numberOfSuccessfullTests}`, 'font-weight:bold; color: green', 'font-weight:bold; color:red');
        } else {
          console.log(`\nPassed: ${this.numberOfSuccessfullTests}\nFailed: ${this.numberOfTests - this.numberOfSuccessfullTests}`);
        }
      }
    }
  }
}

const testHandler = new TestHandler();

var commonjsGlobal$1 = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

function commonjsRequire$1 () {
	throw new Error('Dynamic requires are not currently supported by rollup-plugin-commonjs');
}



function createCommonjsModule$1(fn, module) {
	return module = { exports: {} }, fn(module, module.exports), module.exports;
}

var isBrowser = typeof index !== 'undefined';

var environment = {
	isBrowser: isBrowser
};

var Processor$1 = function Processor(options){
  this.selfOptions = options || {};
  this.pipes = {};
};

Processor$1.prototype.options = function(options) {
  if (options) {
    this.selfOptions = options;
  }
  return this.selfOptions;
};

Processor$1.prototype.pipe = function(name, pipe) {
  if (typeof name === 'string') {
    if (typeof pipe === 'undefined') {
      return this.pipes[name];
    } else {
      this.pipes[name] = pipe;
    }
  }
  if (name && name.name) {
    pipe = name;
    if (pipe.processor === this) { return pipe; }
    this.pipes[pipe.name] = pipe;
  }
  pipe.processor = this;
  return pipe;
};

Processor$1.prototype.process = function(input, pipe) {
  var context = input;
  context.options = this.options();
  var nextPipe = pipe || input.pipe || 'default';
  var lastPipe, lastContext;
  while (nextPipe) {
    if (typeof context.nextAfterChildren !== 'undefined') {
      // children processed and coming back to parent
      context.next = context.nextAfterChildren;
      context.nextAfterChildren = null;
    }

    if (typeof nextPipe === 'string') {
      nextPipe = this.pipe(nextPipe);
    }
    nextPipe.process(context);
    lastContext = context;
    lastPipe = nextPipe;
    nextPipe = null;
    if (context) {
      if (context.next) {
        context = context.next;
        nextPipe = lastContext.nextPipe || context.pipe || lastPipe;
      }
    }
  }
  return context.hasResult ? context.result : undefined;
};

var Processor_1 = Processor$1;

var processor = {
	Processor: Processor_1
};

var Pipe$1 = function Pipe(name) {
  this.name = name;
  this.filters = [];
};

Pipe$1.prototype.process = function(input) {
  if (!this.processor) {
    throw new Error('add this pipe to a processor before using it');
  }
  var debug = this.debug;
  var length = this.filters.length;
  var context = input;
  for (var index = 0; index < length; index++) {
    var filter = this.filters[index];
    if (debug) {
      this.log('filter: ' + filter.filterName);
    }
    filter(context);
    if (typeof context === 'object' && context.exiting) {
      context.exiting = false;
      break;
    }
  }
  if (!context.next && this.resultCheck) {
    this.resultCheck(context);
  }
};

Pipe$1.prototype.log = function(msg) {
  console.log('[jsondiffpatch] ' + this.name + ' pipe, ' + msg);
};

Pipe$1.prototype.append = function() {
  this.filters.push.apply(this.filters, arguments);
  return this;
};

Pipe$1.prototype.prepend = function() {
  this.filters.unshift.apply(this.filters, arguments);
  return this;
};

Pipe$1.prototype.indexOf = function(filterName) {
  if (!filterName) {
    throw new Error('a filter name is required');
  }
  for (var index = 0; index < this.filters.length; index++) {
    var filter = this.filters[index];
    if (filter.filterName === filterName) {
      return index;
    }
  }
  throw new Error('filter not found: ' + filterName);
};

Pipe$1.prototype.list = function() {
  var names = [];
  for (var index = 0; index < this.filters.length; index++) {
    var filter = this.filters[index];
    names.push(filter.filterName);
  }
  return names;
};

Pipe$1.prototype.after = function(filterName) {
  var index = this.indexOf(filterName);
  var params = Array.prototype.slice.call(arguments, 1);
  if (!params.length) {
    throw new Error('a filter is required');
  }
  params.unshift(index + 1, 0);
  Array.prototype.splice.apply(this.filters, params);
  return this;
};

Pipe$1.prototype.before = function(filterName) {
  var index = this.indexOf(filterName);
  var params = Array.prototype.slice.call(arguments, 1);
  if (!params.length) {
    throw new Error('a filter is required');
  }
  params.unshift(index, 0);
  Array.prototype.splice.apply(this.filters, params);
  return this;
};

Pipe$1.prototype.clear = function() {
  this.filters.length = 0;
  return this;
};

Pipe$1.prototype.shouldHaveResult = function(should) {
  if (should === false) {
    this.resultCheck = null;
    return;
  }
  if (this.resultCheck) {
    return;
  }
  var pipe = this;
  this.resultCheck = function(context) {
    if (!context.hasResult) {
      console.log(context);
      var error = new Error(pipe.name + ' failed');
      error.noResult = true;
      throw error;
    }
  };
  return this;
};

var Pipe_1 = Pipe$1;

var pipe = {
	Pipe: Pipe_1
};

var Pipe$2 = pipe.Pipe;

var Context$1 = function Context(){
};

Context$1.prototype.setResult = function(result) {
	this.result = result;
	this.hasResult = true;
	return this;
};

Context$1.prototype.exit = function() {
	this.exiting = true;
	return this;
};

Context$1.prototype.switchTo = function(next, pipe$$1) {
	if (typeof next === 'string' || next instanceof Pipe$2) {
		this.nextPipe = next;
	} else {
		this.next = next;
		if (pipe$$1) {
			this.nextPipe = pipe$$1;
		}
	}
	return this;
};

Context$1.prototype.push = function(child, name) {
	child.parent = this;
	if (typeof name !== 'undefined') {
		child.childName = name;
	}
	child.root = this.root || this;
	child.options = child.options || this.options;
	if (!this.children) {
		this.children = [child];
		this.nextAfterChildren = this.next || null;
		this.next = child;
	} else {
		this.children[this.children.length - 1].next = child;
		this.children.push(child);
	}
	child.next = this;
	return this;
};

var Context_1 = Context$1;

var context = {
	Context: Context_1
};

var isArray = (typeof Array.isArray === 'function') ?
  // use native function
  Array.isArray :
  // use instanceof operator
  function(a) {
    return a instanceof Array;
  };

function cloneRegExp(re) {
  var regexMatch = /^\/(.*)\/([gimyu]*)$/.exec(re.toString());
  return new RegExp(regexMatch[1], regexMatch[2]);
}

function clone(arg) {
  if (typeof arg !== 'object') {
    return arg;
  }
  if (arg === null) {
    return null;
  }
  if (isArray(arg)) {
    return arg.map(clone);
  }
  if (arg instanceof Date) {
    return new Date(arg.getTime());
  }
  if (arg instanceof RegExp) {
    return cloneRegExp(arg);
  }
  var cloned = {};
  for (var name in arg) {
    if (Object.prototype.hasOwnProperty.call(arg, name)) {
      cloned[name] = clone(arg[name]);
    }
  }
  return cloned;
}

var clone_1 = clone;

var Context = context.Context;


var DiffContext$1 = function DiffContext(left, right) {
  this.left = left;
  this.right = right;
  this.pipe = 'diff';
};

DiffContext$1.prototype = new Context();

DiffContext$1.prototype.setResult = function(result) {
  if (this.options.cloneDiffValues && typeof result === 'object') {
    var clone = typeof this.options.cloneDiffValues === 'function' ?
      this.options.cloneDiffValues : clone_1;
    if (typeof result[0] === 'object') {
      result[0] = clone(result[0]);
    }
    if (typeof result[1] === 'object') {
      result[1] = clone(result[1]);
    }
  }
  return Context.prototype.setResult.apply(this, arguments);
};

var DiffContext_1 = DiffContext$1;

var diff$2 = {
	DiffContext: DiffContext_1
};

var Context$2 = context.Context;

var PatchContext$1 = function PatchContext(left, delta) {
  this.left = left;
  this.delta = delta;
  this.pipe = 'patch';
};

PatchContext$1.prototype = new Context$2();

var PatchContext_1 = PatchContext$1;

var patch = {
	PatchContext: PatchContext_1
};

var Context$3 = context.Context;

var ReverseContext$1 = function ReverseContext(delta) {
  this.delta = delta;
  this.pipe = 'reverse';
};

ReverseContext$1.prototype = new Context$3();

var ReverseContext_1 = ReverseContext$1;

var reverse = {
	ReverseContext: ReverseContext_1
};

var isArray$1 = (typeof Array.isArray === 'function') ?
  // use native function
  Array.isArray :
  // use instanceof operator
  function(a) {
    return a instanceof Array;
  };

var diffFilter = function trivialMatchesDiffFilter(context) {
  if (context.left === context.right) {
    context.setResult(undefined).exit();
    return;
  }
  if (typeof context.left === 'undefined') {
    if (typeof context.right === 'function') {
      throw new Error('functions are not supported');
    }
    context.setResult([context.right]).exit();
    return;
  }
  if (typeof context.right === 'undefined') {
    context.setResult([context.left, 0, 0]).exit();
    return;
  }
  if (typeof context.left === 'function' || typeof context.right === 'function') {
    throw new Error('functions are not supported');
  }
  context.leftType = context.left === null ? 'null' : typeof context.left;
  context.rightType = context.right === null ? 'null' : typeof context.right;
  if (context.leftType !== context.rightType) {
    context.setResult([context.left, context.right]).exit();
    return;
  }
  if (context.leftType === 'boolean' || context.leftType === 'number') {
    context.setResult([context.left, context.right]).exit();
    return;
  }
  if (context.leftType === 'object') {
    context.leftIsArray = isArray$1(context.left);
  }
  if (context.rightType === 'object') {
    context.rightIsArray = isArray$1(context.right);
  }
  if (context.leftIsArray !== context.rightIsArray) {
    context.setResult([context.left, context.right]).exit();
    return;
  }

  if (context.left instanceof RegExp) {
    if (context.right instanceof RegExp) {
      context.setResult([context.left.toString(), context.right.toString()]).exit();
    } else {
      context.setResult([context.left, context.right]).exit();
      return;
    }
  }
};
diffFilter.filterName = 'trivial';

var patchFilter = function trivialMatchesPatchFilter(context) {
  if (typeof context.delta === 'undefined') {
    context.setResult(context.left).exit();
    return;
  }
  context.nested = !isArray$1(context.delta);
  if (context.nested) {
    return;
  }
  if (context.delta.length === 1) {
    context.setResult(context.delta[0]).exit();
    return;
  }
  if (context.delta.length === 2) {
    if (context.left instanceof RegExp) {
      var regexArgs = /^\/(.*)\/([gimyu]+)$/.exec(context.delta[1]);
      if (regexArgs) {
        context.setResult(new RegExp(regexArgs[1], regexArgs[2])).exit();
        return;
      }
    }
    context.setResult(context.delta[1]).exit();
    return;
  }
  if (context.delta.length === 3 && context.delta[2] === 0) {
    context.setResult(undefined).exit();
    return;
  }
};
patchFilter.filterName = 'trivial';

var reverseFilter = function trivialReferseFilter(context) {
  if (typeof context.delta === 'undefined') {
    context.setResult(context.delta).exit();
    return;
  }
  context.nested = !isArray$1(context.delta);
  if (context.nested) {
    return;
  }
  if (context.delta.length === 1) {
    context.setResult([context.delta[0], 0, 0]).exit();
    return;
  }
  if (context.delta.length === 2) {
    context.setResult([context.delta[1], context.delta[0]]).exit();
    return;
  }
  if (context.delta.length === 3 && context.delta[2] === 0) {
    context.setResult([context.delta[0]]).exit();
    return;
  }
};
reverseFilter.filterName = 'trivial';

var diffFilter_1 = diffFilter;
var patchFilter_1 = patchFilter;
var reverseFilter_1 = reverseFilter;

var trivial = {
	diffFilter: diffFilter_1,
	patchFilter: patchFilter_1,
	reverseFilter: reverseFilter_1
};

var DiffContext$2 = diff$2.DiffContext;
var PatchContext$2 = patch.PatchContext;
var ReverseContext$2 = reverse.ReverseContext;

var collectChildrenDiffFilter = function collectChildrenDiffFilter(context) {
  if (!context || !context.children) {
    return;
  }
  var length = context.children.length;
  var child;
  var result = context.result;
  for (var index = 0; index < length; index++) {
    child = context.children[index];
    if (typeof child.result === 'undefined') {
      continue;
    }
    result = result || {};
    result[child.childName] = child.result;
  }
  if (result && context.leftIsArray) {
    result._t = 'a';
  }
  context.setResult(result).exit();
};
collectChildrenDiffFilter.filterName = 'collectChildren';

var objectsDiffFilter = function objectsDiffFilter(context) {
  if (context.leftIsArray || context.leftType !== 'object') {
    return;
  }

  var name, child, propertyFilter = context.options.propertyFilter;
  for (name in context.left) {
    if (!Object.prototype.hasOwnProperty.call(context.left, name)) {
      continue;
    }
    if (propertyFilter && !propertyFilter(name, context)) {
      continue;
    }
    child = new DiffContext$2(context.left[name], context.right[name]);
    context.push(child, name);
  }
  for (name in context.right) {
    if (!Object.prototype.hasOwnProperty.call(context.right, name)) {
      continue;
    }
    if (propertyFilter && !propertyFilter(name, context)) {
      continue;
    }
    if (typeof context.left[name] === 'undefined') {
      child = new DiffContext$2(undefined, context.right[name]);
      context.push(child, name);
    }
  }

  if (!context.children || context.children.length === 0) {
    context.setResult(undefined).exit();
    return;
  }
  context.exit();
};
objectsDiffFilter.filterName = 'objects';

var patchFilter$1 = function nestedPatchFilter(context) {
  if (!context.nested) {
    return;
  }
  if (context.delta._t) {
    return;
  }
  var name, child;
  for (name in context.delta) {
    child = new PatchContext$2(context.left[name], context.delta[name]);
    context.push(child, name);
  }
  context.exit();
};
patchFilter$1.filterName = 'objects';

var collectChildrenPatchFilter = function collectChildrenPatchFilter(context) {
  if (!context || !context.children) {
    return;
  }
  if (context.delta._t) {
    return;
  }
  var length = context.children.length;
  var child;
  for (var index = 0; index < length; index++) {
    child = context.children[index];
    if (Object.prototype.hasOwnProperty.call(context.left, child.childName) && child.result === undefined) {
      delete context.left[child.childName];
    } else if (context.left[child.childName] !== child.result) {
      context.left[child.childName] = child.result;
    }
  }
  context.setResult(context.left).exit();
};
collectChildrenPatchFilter.filterName = 'collectChildren';

var reverseFilter$1 = function nestedReverseFilter(context) {
  if (!context.nested) {
    return;
  }
  if (context.delta._t) {
    return;
  }
  var name, child;
  for (name in context.delta) {
    child = new ReverseContext$2(context.delta[name]);
    context.push(child, name);
  }
  context.exit();
};
reverseFilter$1.filterName = 'objects';

var collectChildrenReverseFilter = function collectChildrenReverseFilter(context) {
  if (!context || !context.children) {
    return;
  }
  if (context.delta._t) {
    return;
  }
  var length = context.children.length;
  var child;
  var delta = {};
  for (var index = 0; index < length; index++) {
    child = context.children[index];
    if (delta[child.childName] !== child.result) {
      delta[child.childName] = child.result;
    }
  }
  context.setResult(delta).exit();
};
collectChildrenReverseFilter.filterName = 'collectChildren';

var collectChildrenDiffFilter_1 = collectChildrenDiffFilter;
var objectsDiffFilter_1 = objectsDiffFilter;
var patchFilter_1$1 = patchFilter$1;
var collectChildrenPatchFilter_1 = collectChildrenPatchFilter;
var reverseFilter_1$1 = reverseFilter$1;
var collectChildrenReverseFilter_1 = collectChildrenReverseFilter;

var nested = {
	collectChildrenDiffFilter: collectChildrenDiffFilter_1,
	objectsDiffFilter: objectsDiffFilter_1,
	patchFilter: patchFilter_1$1,
	collectChildrenPatchFilter: collectChildrenPatchFilter_1,
	reverseFilter: reverseFilter_1$1,
	collectChildrenReverseFilter: collectChildrenReverseFilter_1
};

/*

LCS implementation that supports arrays or strings

reference: http://en.wikipedia.org/wiki/Longest_common_subsequence_problem

*/

var defaultMatch = function(array1, array2, index1, index2) {
  return array1[index1] === array2[index2];
};

var lengthMatrix = function(array1, array2, match, context) {
  var len1 = array1.length;
  var len2 = array2.length;
  var x, y;

  // initialize empty matrix of len1+1 x len2+1
  var matrix = [len1 + 1];
  for (x = 0; x < len1 + 1; x++) {
    matrix[x] = [len2 + 1];
    for (y = 0; y < len2 + 1; y++) {
      matrix[x][y] = 0;
    }
  }
  matrix.match = match;
  // save sequence lengths for each coordinate
  for (x = 1; x < len1 + 1; x++) {
    for (y = 1; y < len2 + 1; y++) {
      if (match(array1, array2, x - 1, y - 1, context)) {
        matrix[x][y] = matrix[x - 1][y - 1] + 1;
      } else {
        matrix[x][y] = Math.max(matrix[x - 1][y], matrix[x][y - 1]);
      }
    }
  }
  return matrix;
};

var backtrack = function(matrix, array1, array2, index1, index2, context) {
  if (index1 === 0 || index2 === 0) {
    return {
      sequence: [],
      indices1: [],
      indices2: []
    };
  }

  if (matrix.match(array1, array2, index1 - 1, index2 - 1, context)) {
    var subsequence = backtrack(matrix, array1, array2, index1 - 1, index2 - 1, context);
    subsequence.sequence.push(array1[index1 - 1]);
    subsequence.indices1.push(index1 - 1);
    subsequence.indices2.push(index2 - 1);
    return subsequence;
  }

  if (matrix[index1][index2 - 1] > matrix[index1 - 1][index2]) {
    return backtrack(matrix, array1, array2, index1, index2 - 1, context);
  } else {
    return backtrack(matrix, array1, array2, index1 - 1, index2, context);
  }
};

var get = function(array1, array2, match, context) {
  context = context || {};
  var matrix = lengthMatrix(array1, array2, match || defaultMatch, context);
  var result = backtrack(matrix, array1, array2, array1.length, array2.length, context);
  if (typeof array1 === 'string' && typeof array2 === 'string') {
    result.sequence = result.sequence.join('');
  }
  return result;
};

var get_1 = get;

var lcs = {
	get: get_1
};

var DiffContext$3 = diff$2.DiffContext;
var PatchContext$3 = patch.PatchContext;
var ReverseContext$3 = reverse.ReverseContext;



var ARRAY_MOVE = 3;

var isArray$2 = (typeof Array.isArray === 'function') ?
  // use native function
  Array.isArray :
  // use instanceof operator
  function(a) {
    return a instanceof Array;
  };

var arrayIndexOf = typeof Array.prototype.indexOf === 'function' ?
  function(array, item) {
    return array.indexOf(item);
  } : function(array, item) {
    var length = array.length;
    for (var i = 0; i < length; i++) {
      if (array[i] === item) {
        return i;
      }
    }
    return -1;
  };

function arraysHaveMatchByRef(array1, array2, len1, len2) {
  for (var index1 = 0; index1 < len1; index1++) {
    var val1 = array1[index1];
    for (var index2 = 0; index2 < len2; index2++) {
      var val2 = array2[index2];
      if (index1 !== index2 && val1 === val2) {
        return true;
      }
    }
  }
}

function matchItems(array1, array2, index1, index2, context) {
  var value1 = array1[index1];
  var value2 = array2[index2];
  if (value1 === value2) {
    return true;
  }
  if (typeof value1 !== 'object' || typeof value2 !== 'object') {
    return false;
  }
  var objectHash = context.objectHash;
  if (!objectHash) {
    // no way to match objects was provided, try match by position
    return context.matchByPosition && index1 === index2;
  }
  var hash1;
  var hash2;
  if (typeof index1 === 'number') {
    context.hashCache1 = context.hashCache1 || [];
    hash1 = context.hashCache1[index1];
    if (typeof hash1 === 'undefined') {
      context.hashCache1[index1] = hash1 = objectHash(value1, index1);
    }
  } else {
    hash1 = objectHash(value1);
  }
  if (typeof hash1 === 'undefined') {
    return false;
  }
  if (typeof index2 === 'number') {
    context.hashCache2 = context.hashCache2 || [];
    hash2 = context.hashCache2[index2];
    if (typeof hash2 === 'undefined') {
      context.hashCache2[index2] = hash2 = objectHash(value2, index2);
    }
  } else {
    hash2 = objectHash(value2);
  }
  if (typeof hash2 === 'undefined') {
    return false;
  }
  return hash1 === hash2;
}

var diffFilter$1 = function arraysDiffFilter(context) {
  if (!context.leftIsArray) {
    return;
  }

  var matchContext = {
    objectHash: context.options && context.options.objectHash,
    matchByPosition: context.options && context.options.matchByPosition
  };
  var commonHead = 0;
  var commonTail = 0;
  var index;
  var index1;
  var index2;
  var array1 = context.left;
  var array2 = context.right;
  var len1 = array1.length;
  var len2 = array2.length;

  var child;

  if (len1 > 0 && len2 > 0 && !matchContext.objectHash &&
    typeof matchContext.matchByPosition !== 'boolean') {
    matchContext.matchByPosition = !arraysHaveMatchByRef(array1, array2, len1, len2);
  }

  // separate common head
  while (commonHead < len1 && commonHead < len2 &&
    matchItems(array1, array2, commonHead, commonHead, matchContext)) {
    index = commonHead;
    child = new DiffContext$3(context.left[index], context.right[index]);
    context.push(child, index);
    commonHead++;
  }
  // separate common tail
  while (commonTail + commonHead < len1 && commonTail + commonHead < len2 &&
    matchItems(array1, array2, len1 - 1 - commonTail, len2 - 1 - commonTail, matchContext)) {
    index1 = len1 - 1 - commonTail;
    index2 = len2 - 1 - commonTail;
    child = new DiffContext$3(context.left[index1], context.right[index2]);
    context.push(child, index2);
    commonTail++;
  }
  var result;
  if (commonHead + commonTail === len1) {
    if (len1 === len2) {
      // arrays are identical
      context.setResult(undefined).exit();
      return;
    }
    // trivial case, a block (1 or more consecutive items) was added
    result = result || {
      _t: 'a'
    };
    for (index = commonHead; index < len2 - commonTail; index++) {
      result[index] = [array2[index]];
    }
    context.setResult(result).exit();
    return;
  }
  if (commonHead + commonTail === len2) {
    // trivial case, a block (1 or more consecutive items) was removed
    result = result || {
      _t: 'a'
    };
    for (index = commonHead; index < len1 - commonTail; index++) {
      result['_' + index] = [array1[index], 0, 0];
    }
    context.setResult(result).exit();
    return;
  }
  // reset hash cache
  delete matchContext.hashCache1;
  delete matchContext.hashCache2;

  // diff is not trivial, find the LCS (Longest Common Subsequence)
  var trimmed1 = array1.slice(commonHead, len1 - commonTail);
  var trimmed2 = array2.slice(commonHead, len2 - commonTail);
  var seq = lcs.get(
    trimmed1, trimmed2,
    matchItems,
    matchContext
  );
  var removedItems = [];
  result = result || {
    _t: 'a'
  };
  for (index = commonHead; index < len1 - commonTail; index++) {
    if (arrayIndexOf(seq.indices1, index - commonHead) < 0) {
      // removed
      result['_' + index] = [array1[index], 0, 0];
      removedItems.push(index);
    }
  }

  var detectMove = true;
  if (context.options && context.options.arrays && context.options.arrays.detectMove === false) {
    detectMove = false;
  }
  var includeValueOnMove = false;
  if (context.options && context.options.arrays && context.options.arrays.includeValueOnMove) {
    includeValueOnMove = true;
  }

  var removedItemsLength = removedItems.length;
  for (index = commonHead; index < len2 - commonTail; index++) {
    var indexOnArray2 = arrayIndexOf(seq.indices2, index - commonHead);
    if (indexOnArray2 < 0) {
      // added, try to match with a removed item and register as position move
      var isMove = false;
      if (detectMove && removedItemsLength > 0) {
        for (var removeItemIndex1 = 0; removeItemIndex1 < removedItemsLength; removeItemIndex1++) {
          index1 = removedItems[removeItemIndex1];
          if (matchItems(trimmed1, trimmed2, index1 - commonHead,
            index - commonHead, matchContext)) {
            // store position move as: [originalValue, newPosition, ARRAY_MOVE]
            result['_' + index1].splice(1, 2, index, ARRAY_MOVE);
            if (!includeValueOnMove) {
              // don't include moved value on diff, to save bytes
              result['_' + index1][0] = '';
            }

            index2 = index;
            child = new DiffContext$3(context.left[index1], context.right[index2]);
            context.push(child, index2);
            removedItems.splice(removeItemIndex1, 1);
            isMove = true;
            break;
          }
        }
      }
      if (!isMove) {
        // added
        result[index] = [array2[index]];
      }
    } else {
      // match, do inner diff
      index1 = seq.indices1[indexOnArray2] + commonHead;
      index2 = seq.indices2[indexOnArray2] + commonHead;
      child = new DiffContext$3(context.left[index1], context.right[index2]);
      context.push(child, index2);
    }
  }

  context.setResult(result).exit();

};
diffFilter$1.filterName = 'arrays';

var compare = {
  numerically: function(a, b) {
    return a - b;
  },
  numericallyBy: function(name) {
    return function(a, b) {
      return a[name] - b[name];
    };
  }
};

var patchFilter$2 = function nestedPatchFilter(context) {
  if (!context.nested) {
    return;
  }
  if (context.delta._t !== 'a') {
    return;
  }
  var index, index1;

  var delta = context.delta;
  var array = context.left;

  // first, separate removals, insertions and modifications
  var toRemove = [];
  var toInsert = [];
  var toModify = [];
  for (index in delta) {
    if (index !== '_t') {
      if (index[0] === '_') {
        // removed item from original array
        if (delta[index][2] === 0 || delta[index][2] === ARRAY_MOVE) {
          toRemove.push(parseInt(index.slice(1), 10));
        } else {
          throw new Error('only removal or move can be applied at original array indices' +
            ', invalid diff type: ' + delta[index][2]);
        }
      } else {
        if (delta[index].length === 1) {
          // added item at new array
          toInsert.push({
            index: parseInt(index, 10),
            value: delta[index][0]
          });
        } else {
          // modified item at new array
          toModify.push({
            index: parseInt(index, 10),
            delta: delta[index]
          });
        }
      }
    }
  }

  // remove items, in reverse order to avoid sawing our own floor
  toRemove = toRemove.sort(compare.numerically);
  for (index = toRemove.length - 1; index >= 0; index--) {
    index1 = toRemove[index];
    var indexDiff = delta['_' + index1];
    var removedValue = array.splice(index1, 1)[0];
    if (indexDiff[2] === ARRAY_MOVE) {
      // reinsert later
      toInsert.push({
        index: indexDiff[1],
        value: removedValue
      });
    }
  }

  // insert items, in reverse order to avoid moving our own floor
  toInsert = toInsert.sort(compare.numericallyBy('index'));
  var toInsertLength = toInsert.length;
  for (index = 0; index < toInsertLength; index++) {
    var insertion = toInsert[index];
    array.splice(insertion.index, 0, insertion.value);
  }

  // apply modifications
  var toModifyLength = toModify.length;
  var child;
  if (toModifyLength > 0) {
    for (index = 0; index < toModifyLength; index++) {
      var modification = toModify[index];
      child = new PatchContext$3(context.left[modification.index], modification.delta);
      context.push(child, modification.index);
    }
  }

  if (!context.children) {
    context.setResult(context.left).exit();
    return;
  }
  context.exit();
};
patchFilter$2.filterName = 'arrays';

var collectChildrenPatchFilter$1 = function collectChildrenPatchFilter(context) {
  if (!context || !context.children) {
    return;
  }
  if (context.delta._t !== 'a') {
    return;
  }
  var length = context.children.length;
  var child;
  for (var index = 0; index < length; index++) {
    child = context.children[index];
    context.left[child.childName] = child.result;
  }
  context.setResult(context.left).exit();
};
collectChildrenPatchFilter$1.filterName = 'arraysCollectChildren';

var reverseFilter$2 = function arraysReverseFilter(context) {
  if (!context.nested) {
    if (context.delta[2] === ARRAY_MOVE) {
      context.newName = '_' + context.delta[1];
      context.setResult([context.delta[0], parseInt(context.childName.substr(1), 10), ARRAY_MOVE]).exit();
    }
    return;
  }
  if (context.delta._t !== 'a') {
    return;
  }
  var name, child;
  for (name in context.delta) {
    if (name === '_t') {
      continue;
    }
    child = new ReverseContext$3(context.delta[name]);
    context.push(child, name);
  }
  context.exit();
};
reverseFilter$2.filterName = 'arrays';

var reverseArrayDeltaIndex = function(delta, index, itemDelta) {
  if (typeof index === 'string' && index[0] === '_') {
    return parseInt(index.substr(1), 10);
  } else if (isArray$2(itemDelta) && itemDelta[2] === 0) {
    return '_' + index;
  }

  var reverseIndex = +index;
  for (var deltaIndex in delta) {
    var deltaItem = delta[deltaIndex];
    if (isArray$2(deltaItem)) {
      if (deltaItem[2] === ARRAY_MOVE) {
        var moveFromIndex = parseInt(deltaIndex.substr(1), 10);
        var moveToIndex = deltaItem[1];
        if (moveToIndex === +index) {
          return moveFromIndex;
        }
        if (moveFromIndex <= reverseIndex && moveToIndex > reverseIndex) {
          reverseIndex++;
        } else if (moveFromIndex >= reverseIndex && moveToIndex < reverseIndex) {
          reverseIndex--;
        }
      } else if (deltaItem[2] === 0) {
        var deleteIndex = parseInt(deltaIndex.substr(1), 10);
        if (deleteIndex <= reverseIndex) {
          reverseIndex++;
        }
      } else if (deltaItem.length === 1 && deltaIndex <= reverseIndex) {
        reverseIndex--;
      }
    }
  }

  return reverseIndex;
};

var collectChildrenReverseFilter$1 = function collectChildrenReverseFilter(context) {
  if (!context || !context.children) {
    return;
  }
  if (context.delta._t !== 'a') {
    return;
  }
  var length = context.children.length;
  var child;
  var delta = {
    _t: 'a'
  };

  for (var index = 0; index < length; index++) {
    child = context.children[index];
    var name = child.newName;
    if (typeof name === 'undefined') {
      name = reverseArrayDeltaIndex(context.delta, child.childName, child.result);
    }
    if (delta[name] !== child.result) {
      delta[name] = child.result;
    }
  }
  context.setResult(delta).exit();
};
collectChildrenReverseFilter$1.filterName = 'arraysCollectChildren';

var diffFilter_1$1 = diffFilter$1;
var patchFilter_1$2 = patchFilter$2;
var collectChildrenPatchFilter_1$1 = collectChildrenPatchFilter$1;
var reverseFilter_1$2 = reverseFilter$2;
var collectChildrenReverseFilter_1$1 = collectChildrenReverseFilter$1;

var arrays = {
	diffFilter: diffFilter_1$1,
	patchFilter: patchFilter_1$2,
	collectChildrenPatchFilter: collectChildrenPatchFilter_1$1,
	reverseFilter: reverseFilter_1$2,
	collectChildrenReverseFilter: collectChildrenReverseFilter_1$1
};

var diffFilter$2 = function datesDiffFilter(context) {
  if (context.left instanceof Date) {
    if (context.right instanceof Date) {
      if (context.left.getTime() !== context.right.getTime()) {
        context.setResult([context.left, context.right]);
      } else {
        context.setResult(undefined);
      }
    } else {
      context.setResult([context.left, context.right]);
    }
    context.exit();
  } else if (context.right instanceof Date) {
    context.setResult([context.left, context.right]).exit();
  }
};
diffFilter$2.filterName = 'dates';

var diffFilter_1$2 = diffFilter$2;

var dates = {
	diffFilter: diffFilter_1$2
};

/* global diff_match_patch */
var TEXT_DIFF = 2;
var DEFAULT_MIN_LENGTH = 60;
var cachedDiffPatch = null;

var getDiffMatchPatch = function(required) {
  /*jshint camelcase: false */

  if (!cachedDiffPatch) {
    var instance;
    if (typeof diff_match_patch !== 'undefined') {
      // already loaded, probably a browser
      instance = typeof diff_match_patch === 'function' ?
        new diff_match_patch() : new diff_match_patch.diff_match_patch();
    } else if (typeof commonjsRequire$1 === 'function') {
      try {
        var dmpModuleName = 'diff_match_patch_uncompressed';
        var dmp = commonjsRequire$1('../../public/external/' + dmpModuleName);
        instance = new dmp.diff_match_patch();
      } catch (err) {
        instance = null;
      }
    }
    if (!instance) {
      if (!required) {
        return null;
      }
      var error = new Error('text diff_match_patch library not found');
      error.diff_match_patch_not_found = true;
      throw error;
    }
    cachedDiffPatch = {
      diff: function(txt1, txt2) {
        return instance.patch_toText(instance.patch_make(txt1, txt2));
      },
      patch: function(txt1, patch) {
        var results = instance.patch_apply(instance.patch_fromText(patch), txt1);
        for (var i = 0; i < results[1].length; i++) {
          if (!results[1][i]) {
            var error = new Error('text patch failed');
            error.textPatchFailed = true;
          }
        }
        return results[0];
      }
    };
  }
  return cachedDiffPatch;
};

var diffFilter$3 = function textsDiffFilter(context) {
  if (context.leftType !== 'string') {
    return;
  }
  var minLength = (context.options && context.options.textDiff &&
    context.options.textDiff.minLength) || DEFAULT_MIN_LENGTH;
  if (context.left.length < minLength ||
    context.right.length < minLength) {
    context.setResult([context.left, context.right]).exit();
    return;
  }
  // large text, try to use a text-diff algorithm
  var diffMatchPatch = getDiffMatchPatch();
  if (!diffMatchPatch) {
    // diff-match-patch library not available, fallback to regular string replace
    context.setResult([context.left, context.right]).exit();
    return;
  }
  var diff = diffMatchPatch.diff;
  context.setResult([diff(context.left, context.right), 0, TEXT_DIFF]).exit();
};
diffFilter$3.filterName = 'texts';

var patchFilter$3 = function textsPatchFilter(context) {
  if (context.nested) {
    return;
  }
  if (context.delta[2] !== TEXT_DIFF) {
    return;
  }

  // text-diff, use a text-patch algorithm
  var patch = getDiffMatchPatch(true).patch;
  context.setResult(patch(context.left, context.delta[0])).exit();
};
patchFilter$3.filterName = 'texts';

var textDeltaReverse = function(delta) {
  var i, l, lines, line, lineTmp, header = null,
    headerRegex = /^@@ +\-(\d+),(\d+) +\+(\d+),(\d+) +@@$/,
    lineHeader;
  lines = delta.split('\n');
  for (i = 0, l = lines.length; i < l; i++) {
    line = lines[i];
    var lineStart = line.slice(0, 1);
    if (lineStart === '@') {
      header = headerRegex.exec(line);
      lineHeader = i;
      lines[lineHeader] = '@@ -' + header[3] + ',' + header[4] + ' +' + header[1] + ',' + header[2] + ' @@';
    } else if (lineStart === '+') {
      lines[i] = '-' + lines[i].slice(1);
      if (lines[i - 1].slice(0, 1) === '+') {
        // swap lines to keep default order (-+)
        lineTmp = lines[i];
        lines[i] = lines[i - 1];
        lines[i - 1] = lineTmp;
      }
    } else if (lineStart === '-') {
      lines[i] = '+' + lines[i].slice(1);
    }
  }
  return lines.join('\n');
};

var reverseFilter$3 = function textsReverseFilter(context) {
  if (context.nested) {
    return;
  }
  if (context.delta[2] !== TEXT_DIFF) {
    return;
  }

  // text-diff, use a text-diff algorithm
  context.setResult([textDeltaReverse(context.delta[0]), 0, TEXT_DIFF]).exit();
};
reverseFilter$3.filterName = 'texts';

var diffFilter_1$3 = diffFilter$3;
var patchFilter_1$3 = patchFilter$3;
var reverseFilter_1$3 = reverseFilter$3;

var texts = {
	diffFilter: diffFilter_1$3,
	patchFilter: patchFilter_1$3,
	reverseFilter: reverseFilter_1$3
};

var Processor = processor.Processor;
var Pipe = pipe.Pipe;
var DiffContext = diff$2.DiffContext;
var PatchContext = patch.PatchContext;
var ReverseContext = reverse.ReverseContext;









var DiffPatcher = function DiffPatcher(options) {
  this.processor = new Processor(options);
  this.processor.pipe(new Pipe('diff').append(
    nested.collectChildrenDiffFilter,
    trivial.diffFilter,
    dates.diffFilter,
    texts.diffFilter,
    nested.objectsDiffFilter,
    arrays.diffFilter
  ).shouldHaveResult());
  this.processor.pipe(new Pipe('patch').append(
    nested.collectChildrenPatchFilter,
    arrays.collectChildrenPatchFilter,
    trivial.patchFilter,
    texts.patchFilter,
    nested.patchFilter,
    arrays.patchFilter
  ).shouldHaveResult());
  this.processor.pipe(new Pipe('reverse').append(
    nested.collectChildrenReverseFilter,
    arrays.collectChildrenReverseFilter,
    trivial.reverseFilter,
    texts.reverseFilter,
    nested.reverseFilter,
    arrays.reverseFilter
  ).shouldHaveResult());
};

DiffPatcher.prototype.options = function() {
  return this.processor.options.apply(this.processor, arguments);
};

DiffPatcher.prototype.diff = function(left, right) {
  return this.processor.process(new DiffContext(left, right));
};

DiffPatcher.prototype.patch = function(left, delta) {
  return this.processor.process(new PatchContext(left, delta));
};

DiffPatcher.prototype.reverse = function(delta) {
  return this.processor.process(new ReverseContext(delta));
};

DiffPatcher.prototype.unpatch = function(right, delta) {
  return this.patch(right, this.reverse(delta));
};

DiffPatcher.prototype.clone = function(value) {
  return clone_1(value);
};

var DiffPatcher_1 = DiffPatcher;

var diffpatcher = {
	DiffPatcher: DiffPatcher_1
};

// use as 2nd parameter for JSON.parse to revive Date instances
var dateReviver = function dateReviver(key, value) {
  var parts;
  if (typeof value === 'string') {
    parts = /^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})(?:\.(\d*))?(Z|([+\-])(\d{2}):(\d{2}))$/.exec(value);
    if (parts) {
      return new Date(Date.UTC(+parts[1], +parts[2] - 1, +parts[3], +parts[4], +parts[5], +parts[6], +(parts[7] || 0)));
    }
  }
  return value;
};

var main = createCommonjsModule$1(function (module, exports) {
var DiffPatcher = diffpatcher.DiffPatcher;
exports.DiffPatcher = DiffPatcher;

exports.create = function(options){
  return new DiffPatcher(options);
};

exports.dateReviver = dateReviver;

var defaultInstance;

exports.diff = function() {
  if (!defaultInstance) {
    defaultInstance = new DiffPatcher();
  }
  return defaultInstance.diff.apply(defaultInstance, arguments);
};

exports.patch = function() {
  if (!defaultInstance) {
    defaultInstance = new DiffPatcher();
  }
  return defaultInstance.patch.apply(defaultInstance, arguments);
};

exports.unpatch = function() {
  if (!defaultInstance) {
    defaultInstance = new DiffPatcher();
  }
  return defaultInstance.unpatch.apply(defaultInstance, arguments);
};

exports.reverse = function() {
  if (!defaultInstance) {
    defaultInstance = new DiffPatcher();
  }
  return defaultInstance.reverse.apply(defaultInstance, arguments);
};

exports.clone = function() {
  if (!defaultInstance) {
    defaultInstance = new DiffPatcher();
  }
  return defaultInstance.clone.apply(defaultInstance, arguments);
};


if (environment.isBrowser) {
  exports.homepage = '{{package-homepage}}';
  exports.version = '{{package-version}}';
} else {
  var packageInfoModuleName = '../package.json';
  var packageInfo = commonjsRequire$1(packageInfoModuleName);
  exports.homepage = packageInfo.homepage;
  exports.version = packageInfo.version;

  var formatterModuleName = './formatters';
  var formatters = commonjsRequire$1(formatterModuleName);
  exports.formatters = formatters;
  // shortcut for console
  exports.console = formatters.console;
}
});

var isArray$3 = (typeof Array.isArray === 'function') ?
  // use native function
  Array.isArray :
  // use instanceof operator
  function(a) {
    return a instanceof Array;
  };

var getObjectKeys = typeof Object.keys === 'function' ?
  function(obj) {
    return Object.keys(obj);
  } : function(obj) {
    var names = [];
    for (var property in obj) {
      if (Object.prototype.hasOwnProperty.call(obj, property)) {
        names.push(property);
      }
    }
    return names;
  };

var trimUnderscore = function(str) {
  if (str.substr(0, 1) === '_') {
    return str.slice(1);
  }
  return str;
};

var arrayKeyToSortNumber = function(key) {
  if (key === '_t') {
    return -1;
  } else {
    if (key.substr(0, 1) === '_') {
      return parseInt(key.slice(1), 10);
    } else {
      return parseInt(key, 10) + 0.1;
    }
  }
};

var arrayKeyComparer = function(key1, key2) {
  return arrayKeyToSortNumber(key1) - arrayKeyToSortNumber(key2);
};

var BaseFormatter$1 = function BaseFormatter() {};

BaseFormatter$1.prototype.format = function(delta, left) {
  var context = {};
  this.prepareContext(context);
  this.recurse(context, delta, left);
  return this.finalize(context);
};

BaseFormatter$1.prototype.prepareContext = function(context) {
  context.buffer = [];
  context.out = function() {
    this.buffer.push.apply(this.buffer, arguments);
  };
};

BaseFormatter$1.prototype.typeFormattterNotFound = function(context, deltaType) {
  throw new Error('cannot format delta type: ' + deltaType);
};

BaseFormatter$1.prototype.typeFormattterErrorFormatter = function(context, err) {
  return err.toString();
};

BaseFormatter$1.prototype.finalize = function(context) {
  if (isArray$3(context.buffer)) {
    return context.buffer.join('');
  }
};

BaseFormatter$1.prototype.recurse = function(context, delta, left, key, leftKey, movedFrom, isLast) {

  var useMoveOriginHere = delta && movedFrom;
  var leftValue = useMoveOriginHere ? movedFrom.value : left;

  if (typeof delta === 'undefined' && typeof key === 'undefined') {
    return undefined;
  }

  var type = this.getDeltaType(delta, movedFrom);
  var nodeType = type === 'node' ? (delta._t === 'a' ? 'array' : 'object') : '';

  if (typeof key !== 'undefined') {
    this.nodeBegin(context, key, leftKey, type, nodeType, isLast);
  } else {
    this.rootBegin(context, type, nodeType);
  }

  var typeFormattter;
  try {
    typeFormattter = this['format_' + type] || this.typeFormattterNotFound(context, type);
    typeFormattter.call(this, context, delta, leftValue, key, leftKey, movedFrom);
  } catch (err) {
    this.typeFormattterErrorFormatter(context, err, delta, leftValue, key, leftKey, movedFrom);
    if (typeof console !== 'undefined' && console.error) {
      console.error(err.stack);
    }
  }

  if (typeof key !== 'undefined') {
    this.nodeEnd(context, key, leftKey, type, nodeType, isLast);
  } else {
    this.rootEnd(context, type, nodeType);
  }
};

BaseFormatter$1.prototype.formatDeltaChildren = function(context, delta, left) {
  var self = this;
  this.forEachDeltaKey(delta, left, function(key, leftKey, movedFrom, isLast) {
    self.recurse(context, delta[key], left ? left[leftKey] : undefined,
      key, leftKey, movedFrom, isLast);
  });
};

BaseFormatter$1.prototype.forEachDeltaKey = function(delta, left, fn) {
  var keys = getObjectKeys(delta);
  var arrayKeys = delta._t === 'a';
  var moveDestinations = {};
  var name;
  if (typeof left !== 'undefined') {
    for (name in left) {
      if (Object.prototype.hasOwnProperty.call(left, name)) {
        if (typeof delta[name] === 'undefined' &&
          ((!arrayKeys) || typeof delta['_' + name] === 'undefined')) {
          keys.push(name);
        }
      }
    }
  }
  // look for move destinations
  for (name in delta) {
    if (Object.prototype.hasOwnProperty.call(delta, name)) {
      var value = delta[name];
      if (isArray$3(value) && value[2] === 3) {
        moveDestinations[value[1].toString()] = {
          key: name,
          value: left && left[parseInt(name.substr(1))]
        };
        if (this.includeMoveDestinations !== false) {
          if ((typeof left === 'undefined') &&
            (typeof delta[value[1]] === 'undefined')) {
            keys.push(value[1].toString());
          }
        }
      }
    }
  }
  if (arrayKeys) {
    keys.sort(arrayKeyComparer);
  } else {
    keys.sort();
  }
  for (var index = 0, length = keys.length; index < length; index++) {
    var key = keys[index];
    if (arrayKeys && key === '_t') {
      continue;
    }
    var leftKey = arrayKeys ?
      (typeof key === 'number' ? key : parseInt(trimUnderscore(key), 10)) :
      key;
    var isLast = (index === length - 1);
    fn(key, leftKey, moveDestinations[leftKey], isLast);
  }
};

BaseFormatter$1.prototype.getDeltaType = function(delta, movedFrom) {
  if (typeof delta === 'undefined') {
    if (typeof movedFrom !== 'undefined') {
      return 'movedestination';
    }
    return 'unchanged';
  }
  if (isArray$3(delta)) {
    if (delta.length === 1) {
      return 'added';
    }
    if (delta.length === 2) {
      return 'modified';
    }
    if (delta.length === 3 && delta[2] === 0) {
      return 'deleted';
    }
    if (delta.length === 3 && delta[2] === 2) {
      return 'textdiff';
    }
    if (delta.length === 3 && delta[2] === 3) {
      return 'moved';
    }
  } else if (typeof delta === 'object') {
    return 'node';
  }
  return 'unknown';
};

BaseFormatter$1.prototype.parseTextDiff = function(value) {
  var output = [];
  var lines = value.split('\n@@ ');
  for (var i = 0, l = lines.length; i < l; i++) {
    var line = lines[i];
    var lineOutput = {
      pieces: []
    };
    var location = /^(?:@@ )?[-+]?(\d+),(\d+)/.exec(line).slice(1);
    lineOutput.location = {
      line: location[0],
      chr: location[1]
    };
    var pieces = line.split('\n').slice(1);
    for (var pieceIndex = 0, piecesLength = pieces.length; pieceIndex < piecesLength; pieceIndex++) {
      var piece = pieces[pieceIndex];
      if (!piece.length) {
        continue;
      }
      var pieceOutput = {
        type: 'context'
      };
      if (piece.substr(0, 1) === '+') {
        pieceOutput.type = 'added';
      } else if (piece.substr(0, 1) === '-') {
        pieceOutput.type = 'deleted';
      }
      pieceOutput.text = piece.slice(1);
      lineOutput.pieces.push(pieceOutput);
    }
    output.push(lineOutput);
  }
  return output;
};

var BaseFormatter_1 = BaseFormatter$1;

var base = {
	BaseFormatter: BaseFormatter_1
};

var BaseFormatter = base.BaseFormatter;

var colors = {
  added: 'color:green',
  deleted: 'color:red',
  movedestination: 'color:gray',
  moved: 'color:blue',
  unchanged: 'hide',
  error: 'background:red',
  textDiffLine: 'color:gray'
};

function ConsoleFormatter () {
  this.includeMoveDestinations = false;
}

ConsoleFormatter.prototype = new BaseFormatter();

ConsoleFormatter.prototype.finalize = function (context) {
  var match = context.styles.length === 0;
  var styles = context.styles;
  var buffer = context.buffer
               .join('')
               .split('\n');
  buffer = buffer
               .filter((t, i) => !(t.match(/^ +$/) && buffer[i] === t));

  var styleCounter = 0;
  for (var i = 0; i < buffer.length; i++) {
    var b = buffer[i];
    var styleOccurences = b.split('%c').length - 1;
    if (styleOccurences === 0) {
      buffer[i] = '%c' + b;
      styles.splice(styleCounter, 0, '');
      styleCounter++;
    } else {
      styleCounter += styleOccurences;
    }
  }

  var text = buffer.join('\n');
  return {
    logArguments: [text].concat(styles),
    match: match
  }
};

ConsoleFormatter.prototype.prepareContext = function (context) {
  BaseFormatter.prototype.prepareContext.call(this, context);
  context.styles = context.styles || [];
  context.indent = function (levels) {
    this.indentLevel = (this.indentLevel || 0) +
      (typeof levels === 'undefined' ? 1 : levels);
    this.indentPad = new Array(this.indentLevel + 1).join('  ');
    this.outLine();
  };
  context.outLine = function () {
    this.buffer.push('\n' + (this.indentPad || ''));
  };
  context.out = function () {
    for (var i = 0, l = arguments.length; i < l; i++) {
      var lines = arguments[i].split('\n');
      var text = lines.join('\n' + (this.indentPad || ''));
      if (this.color == null || this.color[0] !== 'hide') {
        if (this.color && this.color[0]) {
          text = '%c' + text;
          this.styles.push(this.color[0]);
        }
        this.buffer.push(text);
      }
    }
  };
  context.pushColor = function (color) {
    this.color = this.color || [];
    this.color.unshift(color);
  };
  context.popColor = function () {
    this.color = this.color || [];
    this.color.shift();
  };
};

ConsoleFormatter.prototype.typeFormattterErrorFormatter = function (context, err) {
  context.pushColor(colors.error);
  context.out('[ERROR]' + err);
  context.popColor();
};

ConsoleFormatter.prototype.formatValue = function (context, value) {
  context.out(JSON.stringify(value, null, 2));
};

ConsoleFormatter.prototype.formatTextDiffString = function (context, value) {
  var lines = this.parseTextDiff(value);
  context.indent();
  for (var i = 0, l = lines.length; i < l; i++) {
    var line = lines[i];
    context.pushColor(colors.textDiffLine);
    context.out(line.location.line + ',' + line.location.chr + ' ');
    context.popColor();
    var pieces = line.pieces;
    for (var pieceIndex = 0, piecesLength = pieces.length; pieceIndex < piecesLength; pieceIndex++) {
      var piece = pieces[pieceIndex];
      context.pushColor(colors[piece.type]);
      context.out(piece.text);
      context.popColor();
    }
    if (i < l - 1) {
      context.outLine();
    }
  }
  context.indent(-1);
};

ConsoleFormatter.prototype.rootBegin = function (context, type, nodeType) {
  context.pushColor(colors[type]);
  if (type === 'node') {
    context.out(nodeType === 'array' ? '[' : '{');
    context.indent();
  }
};

ConsoleFormatter.prototype.rootEnd = function (context, type, nodeType) {
  if (type === 'node') {
    context.indent(-1);
    context.out(nodeType === 'array' ? ']' : '}');
  }
  context.popColor();
};

ConsoleFormatter.prototype.nodeBegin = function (context, key, leftKey, type, nodeType) {
  context.pushColor(colors[type]);
  context.out(leftKey + ': ');
  if (type === 'node') {
    context.out(nodeType === 'array' ? '[' : '{');
    context.indent();
  }
};

ConsoleFormatter.prototype.nodeEnd = function (context, key, leftKey, type, nodeType, isLast) {
  if (type === 'node') {
    context.indent(-1);
    context.out(nodeType === 'array' ? ']' : '}' +
      (isLast ? '' : ','));
  }
  if (!isLast) {
    context.outLine();
  }
  context.popColor();
};

/* jshint camelcase: false */

ConsoleFormatter.prototype.format_unchanged = function (context, delta, left) {
  if (typeof left === 'undefined') {
    return
  }
  this.formatValue(context, left);
};

ConsoleFormatter.prototype.format_movedestination = function (context, delta, left) {
  if (typeof left === 'undefined') {
    return
  }
  this.formatValue(context, left);
};

ConsoleFormatter.prototype.format_node = function (context, delta, left) {
  // recurse
  this.formatDeltaChildren(context, delta, left);
};

ConsoleFormatter.prototype.format_added = function (context, delta) {
  this.formatValue(context, delta[0]);
};

ConsoleFormatter.prototype.format_modified = function (context, delta) {
  context.pushColor(colors.deleted);
  this.formatValue(context, delta[0]);
  context.popColor();
  context.out(' => ');
  context.pushColor(colors.added);
  this.formatValue(context, delta[1]);
  context.popColor();
};

ConsoleFormatter.prototype.format_deleted = function (context, delta) {
  this.formatValue(context, delta[0]);
};

ConsoleFormatter.prototype.format_moved = function (context, delta) {
  context.out('==> ' + delta[1]);
};

ConsoleFormatter.prototype.format_textdiff = function (context, delta) {
  this.formatTextDiffString(context, delta[0]);
};

var defaultInstance;

function format (delta, left) {
  if (!defaultInstance) {
    defaultInstance = new ConsoleFormatter();
  }
  return defaultInstance.format(delta, left)
}

class Logger {
  constructor () {
    this.buffer = [];
    this.failed = false;
    this.errors = 0;
  }
  fail () {
    this.failed = true;
    this.errors++;
  }
  log () {
    this.buffer.push({
      f: 'log',
      args: Array.prototype.slice.call(arguments)
    });
  }
  error () {
    this.fail();
    var args = Array.prototype.slice.call(arguments);
    if (typeof args[0] === 'string') {
      args[0] = '%c' + args[0];
      args.splice(1, 0, 'color:red');
    }
    args.push(new Error().stack);
    this.buffer.push({
      f: 'log',
      args: args
    });
  }
  assert (condition, output) {
    if (!condition) {
      this.fail();
    }
    this.buffer.push({
      f: 'log',
      args: [`%c${output}`, `color: ${condition ? 'green' : 'red'}`]
    });
  }
  group (f, ...args) {
    if (args.length === 0 || typeof args[0] !== 'string') {
      args.unshift('Group');
    }
    args[0] = '%c' + args[0];
    this.buffer.push({
      f: 'groupCollapsed',
      args: args
    });
    var eBeforeExecution = this.errors;
    try {
      f();
    } catch (e) {
      this.fail();
      this.buffer.push({
        f: 'log',
        args: ['%cUncaught ' + e.stack, 'color:red']
      });
    }
    if (eBeforeExecution === this.errors) {
      args.splice(1, 0, '');
    } else {
      args.splice(1, 0, 'color: red');
    }
    this.buffer.push({
      f: 'groupEnd'
    });
  }
  async asyncGroup (f, ...args) {
    if (args.length === 0 || typeof args[0] !== 'string') {
      args.unshift('Group');
    }
    args[0] = '%c' + args[0];
    this.buffer.push({
      f: 'groupCollapsed',
      args: args
    });
    var eBeforeExecution = this.errors;
    try {
      await f();
    } catch (e) {
      this.fail();
      this.buffer.push({
        f: 'log',
        args: ['%cUncaught ' + e.stack, 'color:red']
      });
    }
    if (eBeforeExecution === this.errors) {
      args.splice(1, 0, '');
    } else {
      args.splice(1, 0, 'color: red');
    }
    this.buffer.push({
      f: 'groupEnd'
    });
  }
  compare (o1, o2, name) {
    var arg1 = typeof o1 === 'string' ? `"${o1}"` : cloneDeep(o1);
    var arg2 = typeof o2 === 'string' ? `"${o2}"` : cloneDeep(o2);
    this.group(() => {
      var delta = main.diff(o1, o2);
      var res = format(delta, o1);
      if (!res.match) {
        this.fail();
      }
      this.log.apply(this, res.logArguments);
    }, name, arg1, arg2);
  }
}

class TestCase extends Logger {
  constructor (testDescription, testFunction, location, valueGenerators, opts) {
    super();
    this.valueGenerators = valueGenerators;
    this.description = testDescription;
    this.testFunction = testFunction;
    this.location = location;
    this.name = testFunction.name;
    this._seed = null;
    this.status = 'pending';
    this.opts = opts || {};
  }
  isRepeating () {
    return this._seed != null && testHandler.getRandomSeed() === null
  }
  isParallel () {
    return this.opts.parallel === true
  }
  clone () {
    return new TestCase(this.description, this.testFunction, this.valueGenerators, this.opts)
  }
  run () {
    this.status = 'running';
    var __iterateOverGenerators = async (gens, args, argcase) => {
      if (gens.length === 0) {
        argcase.i++;
        if (testHandler.opts.case == null || testHandler.opts.case === argcase.i) {
          var url = createTestLink({
            test: this.name,
            seed: this._seed,
            case: argcase.i,
            repeat: this.isRepeating()
          });
          args.push(url);
          await this.asyncGroup(async () => {
            await this.testFunction(this, ...args);
          }, 'Arguments:', ...args);
        }
      } else {
        var gen = gens.shift();
        for (var arg of gen) {
          await __iterateOverGenerators(gens.slice(), args.slice().concat([arg]), argcase);
        }
      }
    };
    var __testStarter = () => {
      var test;
      if (this.valueGenerators.length > 0) {
        test = __iterateOverGenerators(this.valueGenerators, [], { i: 0 });
      } else {
        test = this.testFunction(this);
      }
      test.then(async () => {
        this.status = 'done';
        await this.print();
        testHandler.testCompleted(this);
      }, async (err) => {
        this.status = 'done';
        this.failed = true;
        this.buffer.push({
          f: 'log',
          args: ['%cUncaught ' + err.stack, 'color: red']
        });
        await this.print();
        testHandler.testCompleted(this);
      });
    };
    setTimeout(__testStarter, 0);
  }
  getSeed () {
    if (this._seed == null) {
      this._seed = testHandler.getRandomSeed() || Math.random();
    }
    return this._seed
  }
  print () {
    if (browserSupport) {
      var url = createTestLink({
        test: this.name,
        seed: this._seed,
        repeat: false
      });
      console.groupCollapsed(
        `%c${testHandler.numberOfCompletedTests}/${testHandler.numberOfTests}%c ${this.failed ? 'X' : '√'} ${this.description}`,
        'font-weight: bold',
        `color: ${this.failed ? 'red' : 'green'}`
      );
      console.log(`%cLocation: ${this.location.fileName}:${this.location.lineNumber}\nRun test again: ${url}`, 'color: grey; font-style: italic; font-size: x-small');
      this.buffer.forEach(function (b) {
        console[b.f].apply(console, b.args);
      });
      console.groupEnd();
    } else {
      console.log(
        `${testHandler.numberOfCompletedTests}/${testHandler.numberOfTests} ${this.failed ? 'X' : '√'} ${this.description}`
      );
    }
  }
}

var stackframe = createCommonjsModule$1(function (module, exports) {
(function(root, factory) {
    if (typeof undefined === 'function' && undefined.amd) {
        undefined('stackframe', [], factory);
    } else {
        module.exports = factory();
    }
}(commonjsGlobal$1, function() {
    function _isNumber(n) {
        return !isNaN(parseFloat(n)) && isFinite(n);
    }

    function _capitalize(str) {
        return str[0].toUpperCase() + str.substring(1);
    }

    function _getter(p) {
        return function() {
            return this[p];
        };
    }

    var booleanProps = ['isConstructor', 'isEval', 'isNative', 'isToplevel'];
    var numericProps = ['columnNumber', 'lineNumber'];
    var stringProps = ['fileName', 'functionName', 'source'];
    var arrayProps = ['args'];

    var props = booleanProps.concat(numericProps, stringProps, arrayProps);

    function StackFrame(obj) {
        if (obj instanceof Object) {
            for (var i = 0; i < props.length; i++) {
                if (obj.hasOwnProperty(props[i]) && obj[props[i]] !== undefined) {
                    this['set' + _capitalize(props[i])](obj[props[i]]);
                }
            }
        }
    }

    StackFrame.prototype = {
        getArgs: function() {
            return this.args;
        },
        setArgs: function(v) {
            if (Object.prototype.toString.call(v) !== '[object Array]') {
                throw new TypeError('Args must be an Array');
            }
            this.args = v;
        },

        getEvalOrigin: function() {
            return this.evalOrigin;
        },
        setEvalOrigin: function(v) {
            if (v instanceof StackFrame) {
                this.evalOrigin = v;
            } else if (v instanceof Object) {
                this.evalOrigin = new StackFrame(v);
            } else {
                throw new TypeError('Eval Origin must be an Object or StackFrame');
            }
        },

        toString: function() {
            var functionName = this.getFunctionName() || '{anonymous}';
            var args = '(' + (this.getArgs() || []).join(',') + ')';
            var fileName = this.getFileName() ? ('@' + this.getFileName()) : '';
            var lineNumber = _isNumber(this.getLineNumber()) ? (':' + this.getLineNumber()) : '';
            var columnNumber = _isNumber(this.getColumnNumber()) ? (':' + this.getColumnNumber()) : '';
            return functionName + args + fileName + lineNumber + columnNumber;
        }
    };

    for (var i = 0; i < booleanProps.length; i++) {
        StackFrame.prototype['get' + _capitalize(booleanProps[i])] = _getter(booleanProps[i]);
        StackFrame.prototype['set' + _capitalize(booleanProps[i])] = (function(p) {
            return function(v) {
                this[p] = Boolean(v);
            };
        })(booleanProps[i]);
    }

    for (var j = 0; j < numericProps.length; j++) {
        StackFrame.prototype['get' + _capitalize(numericProps[j])] = _getter(numericProps[j]);
        StackFrame.prototype['set' + _capitalize(numericProps[j])] = (function(p) {
            return function(v) {
                if (!_isNumber(v)) {
                    throw new TypeError(p + ' must be a Number');
                }
                this[p] = Number(v);
            };
        })(numericProps[j]);
    }

    for (var k = 0; k < stringProps.length; k++) {
        StackFrame.prototype['get' + _capitalize(stringProps[k])] = _getter(stringProps[k]);
        StackFrame.prototype['set' + _capitalize(stringProps[k])] = (function(p) {
            return function(v) {
                this[p] = String(v);
            };
        })(stringProps[k]);
    }

    return StackFrame;
}));
});

var errorStackParser = createCommonjsModule$1(function (module, exports) {
(function(root, factory) {
    if (typeof undefined === 'function' && undefined.amd) {
        undefined('error-stack-parser', ['stackframe'], factory);
    } else {
        module.exports = factory(stackframe);
    }
}(commonjsGlobal$1, function ErrorStackParser(StackFrame) {
    var FIREFOX_SAFARI_STACK_REGEXP = /(^|@)\S+\:\d+/;
    var CHROME_IE_STACK_REGEXP = /^\s*at .*(\S+\:\d+|\(native\))/m;
    var SAFARI_NATIVE_CODE_REGEXP = /^(eval@)?(\[native code\])?$/;

    return {
        /**
         * Given an Error object, extract the most information from it.
         *
         * @param {Error} error object
         * @return {Array} of StackFrames
         */
        parse: function ErrorStackParser$$parse(error) {
            if (typeof error.stacktrace !== 'undefined' || typeof error['opera#sourceloc'] !== 'undefined') {
                return this.parseOpera(error);
            } else if (error.stack && error.stack.match(CHROME_IE_STACK_REGEXP)) {
                return this.parseV8OrIE(error);
            } else if (error.stack) {
                return this.parseFFOrSafari(error);
            } else {
                throw new Error('Cannot parse given Error object');
            }
        },

        // Separate line and column numbers from a string of the form: (URI:Line:Column)
        extractLocation: function ErrorStackParser$$extractLocation(urlLike) {
            // Fail-fast but return locations like "(native)"
            if (urlLike.indexOf(':') === -1) {
                return [urlLike];
            }

            var regExp = /(.+?)(?:\:(\d+))?(?:\:(\d+))?$/;
            var parts = regExp.exec(urlLike.replace(/[\(\)]/g, ''));
            return [parts[1], parts[2] || undefined, parts[3] || undefined];
        },

        parseV8OrIE: function ErrorStackParser$$parseV8OrIE(error) {
            var filtered = error.stack.split('\n').filter(function(line) {
                return !!line.match(CHROME_IE_STACK_REGEXP);
            }, this);

            return filtered.map(function(line) {
                if (line.indexOf('(eval ') > -1) {
                    // Throw away eval information until we implement stacktrace.js/stackframe#8
                    line = line.replace(/eval code/g, 'eval').replace(/(\(eval at [^\()]*)|(\)\,.*$)/g, '');
                }
                var tokens = line.replace(/^\s+/, '').replace(/\(eval code/g, '(').split(/\s+/).slice(1);
                var locationParts = this.extractLocation(tokens.pop());
                var functionName = tokens.join(' ') || undefined;
                var fileName = ['eval', '<anonymous>'].indexOf(locationParts[0]) > -1 ? undefined : locationParts[0];

                return new StackFrame({
                    functionName: functionName,
                    fileName: fileName,
                    lineNumber: locationParts[1],
                    columnNumber: locationParts[2],
                    source: line
                });
            }, this);
        },

        parseFFOrSafari: function ErrorStackParser$$parseFFOrSafari(error) {
            var filtered = error.stack.split('\n').filter(function(line) {
                return !line.match(SAFARI_NATIVE_CODE_REGEXP);
            }, this);

            return filtered.map(function(line) {
                // Throw away eval information until we implement stacktrace.js/stackframe#8
                if (line.indexOf(' > eval') > -1) {
                    line = line.replace(/ line (\d+)(?: > eval line \d+)* > eval\:\d+\:\d+/g, ':$1');
                }

                if (line.indexOf('@') === -1 && line.indexOf(':') === -1) {
                    // Safari eval frames only have function names and nothing else
                    return new StackFrame({
                        functionName: line
                    });
                } else {
                    var tokens = line.split('@');
                    var locationParts = this.extractLocation(tokens.pop());
                    var functionName = tokens.join('@') || undefined;

                    return new StackFrame({
                        functionName: functionName,
                        fileName: locationParts[0],
                        lineNumber: locationParts[1],
                        columnNumber: locationParts[2],
                        source: line
                    });
                }
            }, this);
        },

        parseOpera: function ErrorStackParser$$parseOpera(e) {
            if (!e.stacktrace || (e.message.indexOf('\n') > -1 &&
                e.message.split('\n').length > e.stacktrace.split('\n').length)) {
                return this.parseOpera9(e);
            } else if (!e.stack) {
                return this.parseOpera10(e);
            } else {
                return this.parseOpera11(e);
            }
        },

        parseOpera9: function ErrorStackParser$$parseOpera9(e) {
            var lineRE = /Line (\d+).*script (?:in )?(\S+)/i;
            var lines = e.message.split('\n');
            var result = [];

            for (var i = 2, len = lines.length; i < len; i += 2) {
                var match = lineRE.exec(lines[i]);
                if (match) {
                    result.push(new StackFrame({
                        fileName: match[2],
                        lineNumber: match[1],
                        source: lines[i]
                    }));
                }
            }

            return result;
        },

        parseOpera10: function ErrorStackParser$$parseOpera10(e) {
            var lineRE = /Line (\d+).*script (?:in )?(\S+)(?:: In function (\S+))?$/i;
            var lines = e.stacktrace.split('\n');
            var result = [];

            for (var i = 0, len = lines.length; i < len; i += 2) {
                var match = lineRE.exec(lines[i]);
                if (match) {
                    result.push(
                        new StackFrame({
                            functionName: match[3] || undefined,
                            fileName: match[2],
                            lineNumber: match[1],
                            source: lines[i]
                        })
                    );
                }
            }

            return result;
        },

        // Opera 10.65+ Error.stack very similar to FF/Safari
        parseOpera11: function ErrorStackParser$$parseOpera11(error) {
            var filtered = error.stack.split('\n').filter(function(line) {
                return !!line.match(FIREFOX_SAFARI_STACK_REGEXP) && !line.match(/^Error created at/);
            }, this);

            return filtered.map(function(line) {
                var tokens = line.split('@');
                var locationParts = this.extractLocation(tokens.pop());
                var functionCall = (tokens.shift() || '');
                var functionName = functionCall
                        .replace(/<anonymous function(: (\w+))?>/, '$2')
                        .replace(/\([^\)]*\)/g, '') || undefined;
                var argsRaw;
                if (functionCall.match(/\(([^\)]*)\)/)) {
                    argsRaw = functionCall.replace(/^[^\(]+\(([^\)]*)\)$/, '$1');
                }
                var args = (argsRaw === undefined || argsRaw === '[arguments not available]') ?
                    undefined : argsRaw.split(',');

                return new StackFrame({
                    functionName: functionName,
                    args: args,
                    fileName: locationParts[0],
                    lineNumber: locationParts[1],
                    columnNumber: locationParts[2],
                    source: line
                });
            }, this);
        }
    };
}));
});

var stackGenerator = createCommonjsModule$1(function (module, exports) {
(function(root, factory) {
    if (typeof undefined === 'function' && undefined.amd) {
        undefined('stack-generator', ['stackframe'], factory);
    } else {
        module.exports = factory(stackframe);
    }
}(commonjsGlobal$1, function(StackFrame) {
    return {
        backtrace: function StackGenerator$$backtrace(opts) {
            var stack = [];
            var maxStackSize = 10;

            if (typeof opts === 'object' && typeof opts.maxStackSize === 'number') {
                maxStackSize = opts.maxStackSize;
            }

            var curr = arguments.callee;
            while (curr && stack.length < maxStackSize) {
                // Allow V8 optimizations
                var args = new Array(curr['arguments'].length);
                for (var i = 0; i < args.length; ++i) {
                    args[i] = curr['arguments'][i];
                }
                if (/function(?:\s+([\w$]+))+\s*\(/.test(curr.toString())) {
                    stack.push(new StackFrame({functionName: RegExp.$1 || undefined, args: args}));
                } else {
                    stack.push(new StackFrame({args: args}));
                }

                try {
                    curr = curr.caller;
                } catch (e) {
                    break;
                }
            }
            return stack;
        }
    };
}));
});

var util = createCommonjsModule$1(function (module, exports) {
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

/**
 * This is a helper function for getting values from parameter/options
 * objects.
 *
 * @param args The object we are extracting values from
 * @param name The name of the property we are getting.
 * @param defaultValue An optional value to return if the property is missing
 * from the object. If this is not specified and the property is missing, an
 * error will be thrown.
 */
function getArg(aArgs, aName, aDefaultValue) {
  if (aName in aArgs) {
    return aArgs[aName];
  } else if (arguments.length === 3) {
    return aDefaultValue;
  } else {
    throw new Error('"' + aName + '" is a required argument.');
  }
}
exports.getArg = getArg;

var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.]*)(?::(\d+))?(\S*)$/;
var dataUrlRegexp = /^data:.+\,.+$/;

function urlParse(aUrl) {
  var match = aUrl.match(urlRegexp);
  if (!match) {
    return null;
  }
  return {
    scheme: match[1],
    auth: match[2],
    host: match[3],
    port: match[4],
    path: match[5]
  };
}
exports.urlParse = urlParse;

function urlGenerate(aParsedUrl) {
  var url = '';
  if (aParsedUrl.scheme) {
    url += aParsedUrl.scheme + ':';
  }
  url += '//';
  if (aParsedUrl.auth) {
    url += aParsedUrl.auth + '@';
  }
  if (aParsedUrl.host) {
    url += aParsedUrl.host;
  }
  if (aParsedUrl.port) {
    url += ":" + aParsedUrl.port;
  }
  if (aParsedUrl.path) {
    url += aParsedUrl.path;
  }
  return url;
}
exports.urlGenerate = urlGenerate;

/**
 * Normalizes a path, or the path portion of a URL:
 *
 * - Replaces consecutive slashes with one slash.
 * - Removes unnecessary '.' parts.
 * - Removes unnecessary '<dir>/..' parts.
 *
 * Based on code in the Node.js 'path' core module.
 *
 * @param aPath The path or url to normalize.
 */
function normalize(aPath) {
  var path = aPath;
  var url = urlParse(aPath);
  if (url) {
    if (!url.path) {
      return aPath;
    }
    path = url.path;
  }
  var isAbsolute = exports.isAbsolute(path);

  var parts = path.split(/\/+/);
  for (var part, up = 0, i = parts.length - 1; i >= 0; i--) {
    part = parts[i];
    if (part === '.') {
      parts.splice(i, 1);
    } else if (part === '..') {
      up++;
    } else if (up > 0) {
      if (part === '') {
        // The first part is blank if the path is absolute. Trying to go
        // above the root is a no-op. Therefore we can remove all '..' parts
        // directly after the root.
        parts.splice(i + 1, up);
        up = 0;
      } else {
        parts.splice(i, 2);
        up--;
      }
    }
  }
  path = parts.join('/');

  if (path === '') {
    path = isAbsolute ? '/' : '.';
  }

  if (url) {
    url.path = path;
    return urlGenerate(url);
  }
  return path;
}
exports.normalize = normalize;

/**
 * Joins two paths/URLs.
 *
 * @param aRoot The root path or URL.
 * @param aPath The path or URL to be joined with the root.
 *
 * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a
 *   scheme-relative URL: Then the scheme of aRoot, if any, is prepended
 *   first.
 * - Otherwise aPath is a path. If aRoot is a URL, then its path portion
 *   is updated with the result and aRoot is returned. Otherwise the result
 *   is returned.
 *   - If aPath is absolute, the result is aPath.
 *   - Otherwise the two paths are joined with a slash.
 * - Joining for example 'http://' and 'www.example.com' is also supported.
 */
function join(aRoot, aPath) {
  if (aRoot === "") {
    aRoot = ".";
  }
  if (aPath === "") {
    aPath = ".";
  }
  var aPathUrl = urlParse(aPath);
  var aRootUrl = urlParse(aRoot);
  if (aRootUrl) {
    aRoot = aRootUrl.path || '/';
  }

  // `join(foo, '//www.example.org')`
  if (aPathUrl && !aPathUrl.scheme) {
    if (aRootUrl) {
      aPathUrl.scheme = aRootUrl.scheme;
    }
    return urlGenerate(aPathUrl);
  }

  if (aPathUrl || aPath.match(dataUrlRegexp)) {
    return aPath;
  }

  // `join('http://', 'www.example.com')`
  if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
    aRootUrl.host = aPath;
    return urlGenerate(aRootUrl);
  }

  var joined = aPath.charAt(0) === '/'
    ? aPath
    : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);

  if (aRootUrl) {
    aRootUrl.path = joined;
    return urlGenerate(aRootUrl);
  }
  return joined;
}
exports.join = join;

exports.isAbsolute = function (aPath) {
  return aPath.charAt(0) === '/' || !!aPath.match(urlRegexp);
};

/**
 * Make a path relative to a URL or another path.
 *
 * @param aRoot The root path or URL.
 * @param aPath The path or URL to be made relative to aRoot.
 */
function relative(aRoot, aPath) {
  if (aRoot === "") {
    aRoot = ".";
  }

  aRoot = aRoot.replace(/\/$/, '');

  // It is possible for the path to be above the root. In this case, simply
  // checking whether the root is a prefix of the path won't work. Instead, we
  // need to remove components from the root one by one, until either we find
  // a prefix that fits, or we run out of components to remove.
  var level = 0;
  while (aPath.indexOf(aRoot + '/') !== 0) {
    var index = aRoot.lastIndexOf("/");
    if (index < 0) {
      return aPath;
    }

    // If the only part of the root that is left is the scheme (i.e. http://,
    // file:///, etc.), one or more slashes (/), or simply nothing at all, we
    // have exhausted all components, so the path is not relative to the root.
    aRoot = aRoot.slice(0, index);
    if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
      return aPath;
    }

    ++level;
  }

  // Make sure we add a "../" for each component we removed from the root.
  return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1);
}
exports.relative = relative;

var supportsNullProto = (function () {
  var obj = Object.create(null);
  return !('__proto__' in obj);
}());

function identity (s) {
  return s;
}

/**
 * Because behavior goes wacky when you set `__proto__` on objects, we
 * have to prefix all the strings in our set with an arbitrary character.
 *
 * See https://github.com/mozilla/source-map/pull/31 and
 * https://github.com/mozilla/source-map/issues/30
 *
 * @param String aStr
 */
function toSetString(aStr) {
  if (isProtoString(aStr)) {
    return '$' + aStr;
  }

  return aStr;
}
exports.toSetString = supportsNullProto ? identity : toSetString;

function fromSetString(aStr) {
  if (isProtoString(aStr)) {
    return aStr.slice(1);
  }

  return aStr;
}
exports.fromSetString = supportsNullProto ? identity : fromSetString;

function isProtoString(s) {
  if (!s) {
    return false;
  }

  var length = s.length;

  if (length < 9 /* "__proto__".length */) {
    return false;
  }

  if (s.charCodeAt(length - 1) !== 95  /* '_' */ ||
      s.charCodeAt(length - 2) !== 95  /* '_' */ ||
      s.charCodeAt(length - 3) !== 111 /* 'o' */ ||
      s.charCodeAt(length - 4) !== 116 /* 't' */ ||
      s.charCodeAt(length - 5) !== 111 /* 'o' */ ||
      s.charCodeAt(length - 6) !== 114 /* 'r' */ ||
      s.charCodeAt(length - 7) !== 112 /* 'p' */ ||
      s.charCodeAt(length - 8) !== 95  /* '_' */ ||
      s.charCodeAt(length - 9) !== 95  /* '_' */) {
    return false;
  }

  for (var i = length - 10; i >= 0; i--) {
    if (s.charCodeAt(i) !== 36 /* '$' */) {
      return false;
    }
  }

  return true;
}

/**
 * Comparator between two mappings where the original positions are compared.
 *
 * Optionally pass in `true` as `onlyCompareGenerated` to consider two
 * mappings with the same original source/line/column, but different generated
 * line and column the same. Useful when searching for a mapping with a
 * stubbed out mapping.
 */
function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
  var cmp = mappingA.source - mappingB.source;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0 || onlyCompareOriginal) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  return mappingA.name - mappingB.name;
}
exports.compareByOriginalPositions = compareByOriginalPositions;

/**
 * Comparator between two mappings with deflated source and name indices where
 * the generated positions are compared.
 *
 * Optionally pass in `true` as `onlyCompareGenerated` to consider two
 * mappings with the same generated line and column, but different
 * source/name/original line and column the same. Useful when searching for a
 * mapping with a stubbed out mapping.
 */
function compareByGeneratedPositionsDeflated(mappingA, mappingB, onlyCompareGenerated) {
  var cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0 || onlyCompareGenerated) {
    return cmp;
  }

  cmp = mappingA.source - mappingB.source;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0) {
    return cmp;
  }

  return mappingA.name - mappingB.name;
}
exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated;

function strcmp(aStr1, aStr2) {
  if (aStr1 === aStr2) {
    return 0;
  }

  if (aStr1 > aStr2) {
    return 1;
  }

  return -1;
}

/**
 * Comparator between two mappings with inflated source and name strings where
 * the generated positions are compared.
 */
function compareByGeneratedPositionsInflated(mappingA, mappingB) {
  var cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = strcmp(mappingA.source, mappingB.source);
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0) {
    return cmp;
  }

  return strcmp(mappingA.name, mappingB.name);
}
exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated;
});

var binarySearch = createCommonjsModule$1(function (module, exports) {
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

exports.GREATEST_LOWER_BOUND = 1;
exports.LEAST_UPPER_BOUND = 2;

/**
 * Recursive implementation of binary search.
 *
 * @param aLow Indices here and lower do not contain the needle.
 * @param aHigh Indices here and higher do not contain the needle.
 * @param aNeedle The element being searched for.
 * @param aHaystack The non-empty array being searched.
 * @param aCompare Function which takes two elements and returns -1, 0, or 1.
 * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
 *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 */
function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {
  // This function terminates when one of the following is true:
  //
  //   1. We find the exact element we are looking for.
  //
  //   2. We did not find the exact element, but we can return the index of
  //      the next-closest element.
  //
  //   3. We did not find the exact element, and there is no next-closest
  //      element than the one we are searching for, so we return -1.
  var mid = Math.floor((aHigh - aLow) / 2) + aLow;
  var cmp = aCompare(aNeedle, aHaystack[mid], true);
  if (cmp === 0) {
    // Found the element we are looking for.
    return mid;
  }
  else if (cmp > 0) {
    // Our needle is greater than aHaystack[mid].
    if (aHigh - mid > 1) {
      // The element is in the upper half.
      return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias);
    }

    // The exact needle element was not found in this haystack. Determine if
    // we are in termination case (3) or (2) and return the appropriate thing.
    if (aBias == exports.LEAST_UPPER_BOUND) {
      return aHigh < aHaystack.length ? aHigh : -1;
    } else {
      return mid;
    }
  }
  else {
    // Our needle is less than aHaystack[mid].
    if (mid - aLow > 1) {
      // The element is in the lower half.
      return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias);
    }

    // we are in termination case (3) or (2) and return the appropriate thing.
    if (aBias == exports.LEAST_UPPER_BOUND) {
      return mid;
    } else {
      return aLow < 0 ? -1 : aLow;
    }
  }
}

/**
 * This is an implementation of binary search which will always try and return
 * the index of the closest element if there is no exact hit. This is because
 * mappings between original and generated line/col pairs are single points,
 * and there is an implicit region between each of them, so a miss just means
 * that you aren't on the very start of a region.
 *
 * @param aNeedle The element you are looking for.
 * @param aHaystack The array that is being searched.
 * @param aCompare A function which takes the needle and an element in the
 *     array and returns -1, 0, or 1 depending on whether the needle is less
 *     than, equal to, or greater than the element, respectively.
 * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
 *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.
 */
exports.search = function search(aNeedle, aHaystack, aCompare, aBias) {
  if (aHaystack.length === 0) {
    return -1;
  }

  var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack,
                              aCompare, aBias || exports.GREATEST_LOWER_BOUND);
  if (index < 0) {
    return -1;
  }

  // We have found either the exact element, or the next-closest element than
  // the one we are searching for. However, there may be more than one such
  // element. Make sure we always return the smallest of these.
  while (index - 1 >= 0) {
    if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {
      break;
    }
    --index;
  }

  return index;
};
});

/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */


var has = Object.prototype.hasOwnProperty;

/**
 * A data structure which is a combination of an array and a set. Adding a new
 * member is O(1), testing for membership is O(1), and finding the index of an
 * element is O(1). Removing elements from the set is not supported. Only
 * strings are supported for membership.
 */
function ArraySet$1() {
  this._array = [];
  this._set = Object.create(null);
}

/**
 * Static method for creating ArraySet instances from an existing array.
 */
ArraySet$1.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
  var set = new ArraySet$1();
  for (var i = 0, len = aArray.length; i < len; i++) {
    set.add(aArray[i], aAllowDuplicates);
  }
  return set;
};

/**
 * Return how many unique items are in this ArraySet. If duplicates have been
 * added, than those do not count towards the size.
 *
 * @returns Number
 */
ArraySet$1.prototype.size = function ArraySet_size() {
  return Object.getOwnPropertyNames(this._set).length;
};

/**
 * Add the given string to this set.
 *
 * @param String aStr
 */
ArraySet$1.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
  var sStr = util.toSetString(aStr);
  var isDuplicate = has.call(this._set, sStr);
  var idx = this._array.length;
  if (!isDuplicate || aAllowDuplicates) {
    this._array.push(aStr);
  }
  if (!isDuplicate) {
    this._set[sStr] = idx;
  }
};

/**
 * Is the given string a member of this set?
 *
 * @param String aStr
 */
ArraySet$1.prototype.has = function ArraySet_has(aStr) {
  var sStr = util.toSetString(aStr);
  return has.call(this._set, sStr);
};

/**
 * What is the index of the given string in the array?
 *
 * @param String aStr
 */
ArraySet$1.prototype.indexOf = function ArraySet_indexOf(aStr) {
  var sStr = util.toSetString(aStr);
  if (has.call(this._set, sStr)) {
    return this._set[sStr];
  }
  throw new Error('"' + aStr + '" is not in the set.');
};

/**
 * What is the element at the given index?
 *
 * @param Number aIdx
 */
ArraySet$1.prototype.at = function ArraySet_at(aIdx) {
  if (aIdx >= 0 && aIdx < this._array.length) {
    return this._array[aIdx];
  }
  throw new Error('No element indexed by ' + aIdx);
};

/**
 * Returns the array representation of this set (which has the proper indices
 * indicated by indexOf). Note that this is a copy of the internal array used
 * for storing the members so that no one can mess with internal state.
 */
ArraySet$1.prototype.toArray = function ArraySet_toArray() {
  return this._array.slice();
};

var ArraySet_1 = ArraySet$1;

var arraySet = {
	ArraySet: ArraySet_1
};

/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');

/**
 * Encode an integer in the range of 0 to 63 to a single base 64 digit.
 */
var encode$2 = function (number) {
  if (0 <= number && number < intToCharMap.length) {
    return intToCharMap[number];
  }
  throw new TypeError("Must be between 0 and 63: " + number);
};

/**
 * Decode a single base 64 character code digit to an integer. Returns -1 on
 * failure.
 */
var decode$1 = function (charCode) {
  var bigA = 65;     // 'A'
  var bigZ = 90;     // 'Z'

  var littleA = 97;  // 'a'
  var littleZ = 122; // 'z'

  var zero = 48;     // '0'
  var nine = 57;     // '9'

  var plus = 43;     // '+'
  var slash = 47;    // '/'

  var littleOffset = 26;
  var numberOffset = 52;

  // 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
  if (bigA <= charCode && charCode <= bigZ) {
    return (charCode - bigA);
  }

  // 26 - 51: abcdefghijklmnopqrstuvwxyz
  if (littleA <= charCode && charCode <= littleZ) {
    return (charCode - littleA + littleOffset);
  }

  // 52 - 61: 0123456789
  if (zero <= charCode && charCode <= nine) {
    return (charCode - zero + numberOffset);
  }

  // 62: +
  if (charCode == plus) {
    return 62;
  }

  // 63: /
  if (charCode == slash) {
    return 63;
  }

  // Invalid base64 digit.
  return -1;
};

var base64 = {
	encode: encode$2,
	decode: decode$1
};

/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 *
 * Based on the Base 64 VLQ implementation in Closure Compiler:
 * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
 *
 * Copyright 2011 The Closure Compiler Authors. All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 *  * Neither the name of Google Inc. nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */



// A single base 64 digit can contain 6 bits of data. For the base 64 variable
// length quantities we use in the source map spec, the first bit is the sign,
// the next four bits are the actual value, and the 6th bit is the
// continuation bit. The continuation bit tells us whether there are more
// digits in this value following this digit.
//
//   Continuation
//   |    Sign
//   |    |
//   V    V
//   101011

var VLQ_BASE_SHIFT = 5;

// binary: 100000
var VLQ_BASE = 1 << VLQ_BASE_SHIFT;

// binary: 011111
var VLQ_BASE_MASK = VLQ_BASE - 1;

// binary: 100000
var VLQ_CONTINUATION_BIT = VLQ_BASE;

/**
 * Converts from a two-complement value to a value where the sign bit is
 * placed in the least significant bit.  For example, as decimals:
 *   1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
 *   2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
 */
function toVLQSigned(aValue) {
  return aValue < 0
    ? ((-aValue) << 1) + 1
    : (aValue << 1) + 0;
}

/**
 * Converts to a two-complement value from a value where the sign bit is
 * placed in the least significant bit.  For example, as decimals:
 *   2 (10 binary) becomes 1, 3 (11 binary) becomes -1
 *   4 (100 binary) becomes 2, 5 (101 binary) becomes -2
 */
function fromVLQSigned(aValue) {
  var isNegative = (aValue & 1) === 1;
  var shifted = aValue >> 1;
  return isNegative
    ? -shifted
    : shifted;
}

/**
 * Returns the base 64 VLQ encoded value.
 */
var encode$1 = function base64VLQ_encode(aValue) {
  var encoded = "";
  var digit;

  var vlq = toVLQSigned(aValue);

  do {
    digit = vlq & VLQ_BASE_MASK;
    vlq >>>= VLQ_BASE_SHIFT;
    if (vlq > 0) {
      // There are still more digits in this value, so we must make sure the
      // continuation bit is marked.
      digit |= VLQ_CONTINUATION_BIT;
    }
    encoded += base64.encode(digit);
  } while (vlq > 0);

  return encoded;
};

/**
 * Decodes the next base 64 VLQ value from the given string and returns the
 * value and the rest of the string via the out parameter.
 */
var decode = function base64VLQ_decode(aStr, aIndex, aOutParam) {
  var strLen = aStr.length;
  var result = 0;
  var shift = 0;
  var continuation, digit;

  do {
    if (aIndex >= strLen) {
      throw new Error("Expected more digits in base 64 VLQ value.");
    }

    digit = base64.decode(aStr.charCodeAt(aIndex++));
    if (digit === -1) {
      throw new Error("Invalid base64 digit: " + aStr.charAt(aIndex - 1));
    }

    continuation = !!(digit & VLQ_CONTINUATION_BIT);
    digit &= VLQ_BASE_MASK;
    result = result + (digit << shift);
    shift += VLQ_BASE_SHIFT;
  } while (continuation);

  aOutParam.value = fromVLQSigned(result);
  aOutParam.rest = aIndex;
};

var base64Vlq = {
	encode: encode$1,
	decode: decode
};

/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

// It turns out that some (most?) JavaScript engines don't self-host
// `Array.prototype.sort`. This makes sense because C++ will likely remain
// faster than JS when doing raw CPU-intensive sorting. However, when using a
// custom comparator function, calling back and forth between the VM's C++ and
// JIT'd JS is rather slow *and* loses JIT type information, resulting in
// worse generated code for the comparator function than would be optimal. In
// fact, when sorting with a comparator, these costs outweigh the benefits of
// sorting in C++. By using our own JS-implemented Quick Sort (below), we get
// a ~3500ms mean speed-up in `bench/bench.html`.

/**
 * Swap the elements indexed by `x` and `y` in the array `ary`.
 *
 * @param {Array} ary
 *        The array.
 * @param {Number} x
 *        The index of the first item.
 * @param {Number} y
 *        The index of the second item.
 */
function swap(ary, x, y) {
  var temp = ary[x];
  ary[x] = ary[y];
  ary[y] = temp;
}

/**
 * Returns a random integer within the range `low .. high` inclusive.
 *
 * @param {Number} low
 *        The lower bound on the range.
 * @param {Number} high
 *        The upper bound on the range.
 */
function randomIntInRange(low, high) {
  return Math.round(low + (Math.random() * (high - low)));
}

/**
 * The Quick Sort algorithm.
 *
 * @param {Array} ary
 *        An array to sort.
 * @param {function} comparator
 *        Function to use to compare two items.
 * @param {Number} p
 *        Start index of the array
 * @param {Number} r
 *        End index of the array
 */
function doQuickSort(ary, comparator, p, r) {
  // If our lower bound is less than our upper bound, we (1) partition the
  // array into two pieces and (2) recurse on each half. If it is not, this is
  // the empty array and our base case.

  if (p < r) {
    // (1) Partitioning.
    //
    // The partitioning chooses a pivot between `p` and `r` and moves all
    // elements that are less than or equal to the pivot to the before it, and
    // all the elements that are greater than it after it. The effect is that
    // once partition is done, the pivot is in the exact place it will be when
    // the array is put in sorted order, and it will not need to be moved
    // again. This runs in O(n) time.

    // Always choose a random pivot so that an input array which is reverse
    // sorted does not cause O(n^2) running time.
    var pivotIndex = randomIntInRange(p, r);
    var i = p - 1;

    swap(ary, pivotIndex, r);
    var pivot = ary[r];

    // Immediately after `j` is incremented in this loop, the following hold
    // true:
    //
    //   * Every element in `ary[p .. i]` is less than or equal to the pivot.
    //
    //   * Every element in `ary[i+1 .. j-1]` is greater than the pivot.
    for (var j = p; j < r; j++) {
      if (comparator(ary[j], pivot) <= 0) {
        i += 1;
        swap(ary, i, j);
      }
    }

    swap(ary, i + 1, j);
    var q = i + 1;

    // (2) Recurse on each half.

    doQuickSort(ary, comparator, p, q - 1);
    doQuickSort(ary, comparator, q + 1, r);
  }
}

/**
 * Sort the given array in-place with the given comparator function.
 *
 * @param {Array} ary
 *        An array to sort.
 * @param {function} comparator
 *        Function to use to compare two items.
 */
var quickSort_1 = function (ary, comparator) {
  doQuickSort(ary, comparator, 0, ary.length - 1);
};

var quickSort$1 = {
	quickSort: quickSort_1
};

/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */



var ArraySet = arraySet.ArraySet;

var quickSort = quickSort$1.quickSort;

function SourceMapConsumer(aSourceMap) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
  }

  return sourceMap.sections != null
    ? new IndexedSourceMapConsumer(sourceMap)
    : new BasicSourceMapConsumer(sourceMap);
}

SourceMapConsumer.fromSourceMap = function(aSourceMap) {
  return BasicSourceMapConsumer.fromSourceMap(aSourceMap);
};

/**
 * The version of the source mapping spec that we are consuming.
 */
SourceMapConsumer.prototype._version = 3;

// `__generatedMappings` and `__originalMappings` are arrays that hold the
// parsed mapping coordinates from the source map's "mappings" attribute. They
// are lazily instantiated, accessed via the `_generatedMappings` and
// `_originalMappings` getters respectively, and we only parse the mappings
// and create these arrays once queried for a source location. We jump through
// these hoops because there can be many thousands of mappings, and parsing
// them is expensive, so we only want to do it if we must.
//
// Each object in the arrays is of the form:
//
//     {
//       generatedLine: The line number in the generated code,
//       generatedColumn: The column number in the generated code,
//       source: The path to the original source file that generated this
//               chunk of code,
//       originalLine: The line number in the original source that
//                     corresponds to this chunk of generated code,
//       originalColumn: The column number in the original source that
//                       corresponds to this chunk of generated code,
//       name: The name of the original symbol which generated this chunk of
//             code.
//     }
//
// All properties except for `generatedLine` and `generatedColumn` can be
// `null`.
//
// `_generatedMappings` is ordered by the generated positions.
//
// `_originalMappings` is ordered by the original positions.

SourceMapConsumer.prototype.__generatedMappings = null;
Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', {
  get: function () {
    if (!this.__generatedMappings) {
      this._parseMappings(this._mappings, this.sourceRoot);
    }

    return this.__generatedMappings;
  }
});

SourceMapConsumer.prototype.__originalMappings = null;
Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', {
  get: function () {
    if (!this.__originalMappings) {
      this._parseMappings(this._mappings, this.sourceRoot);
    }

    return this.__originalMappings;
  }
});

SourceMapConsumer.prototype._charIsMappingSeparator =
  function SourceMapConsumer_charIsMappingSeparator(aStr, index) {
    var c = aStr.charAt(index);
    return c === ";" || c === ",";
  };

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
SourceMapConsumer.prototype._parseMappings =
  function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    throw new Error("Subclasses must implement _parseMappings");
  };

SourceMapConsumer.GENERATED_ORDER = 1;
SourceMapConsumer.ORIGINAL_ORDER = 2;

SourceMapConsumer.GREATEST_LOWER_BOUND = 1;
SourceMapConsumer.LEAST_UPPER_BOUND = 2;

/**
 * Iterate over each mapping between an original source/line/column and a
 * generated line/column in this source map.
 *
 * @param Function aCallback
 *        The function that is called with each mapping.
 * @param Object aContext
 *        Optional. If specified, this object will be the value of `this` every
 *        time that `aCallback` is called.
 * @param aOrder
 *        Either `SourceMapConsumer.GENERATED_ORDER` or
 *        `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to
 *        iterate over the mappings sorted by the generated file's line/column
 *        order or the original's source/line/column order, respectively. Defaults to
 *        `SourceMapConsumer.GENERATED_ORDER`.
 */
SourceMapConsumer.prototype.eachMapping =
  function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
    var context = aContext || null;
    var order = aOrder || SourceMapConsumer.GENERATED_ORDER;

    var mappings;
    switch (order) {
    case SourceMapConsumer.GENERATED_ORDER:
      mappings = this._generatedMappings;
      break;
    case SourceMapConsumer.ORIGINAL_ORDER:
      mappings = this._originalMappings;
      break;
    default:
      throw new Error("Unknown order of iteration.");
    }

    var sourceRoot = this.sourceRoot;
    mappings.map(function (mapping) {
      var source = mapping.source === null ? null : this._sources.at(mapping.source);
      if (source != null && sourceRoot != null) {
        source = util.join(sourceRoot, source);
      }
      return {
        source: source,
        generatedLine: mapping.generatedLine,
        generatedColumn: mapping.generatedColumn,
        originalLine: mapping.originalLine,
        originalColumn: mapping.originalColumn,
        name: mapping.name === null ? null : this._names.at(mapping.name)
      };
    }, this).forEach(aCallback, context);
  };

/**
 * Returns all generated line and column information for the original source,
 * line, and column provided. If no column is provided, returns all mappings
 * corresponding to a either the line we are searching for or the next
 * closest line that has any mappings. Otherwise, returns all mappings
 * corresponding to the given line and either the column we are searching for
 * or the next closest column that has any offsets.
 *
 * The only argument is an object with the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.
 *   - column: Optional. the column number in the original source.
 *
 * and an array of objects is returned, each with the following properties:
 *
 *   - line: The line number in the generated source, or null.
 *   - column: The column number in the generated source, or null.
 */
SourceMapConsumer.prototype.allGeneratedPositionsFor =
  function SourceMapConsumer_allGeneratedPositionsFor(aArgs) {
    var line = util.getArg(aArgs, 'line');

    // When there is no exact match, BasicSourceMapConsumer.prototype._findMapping
    // returns the index of the closest mapping less than the needle. By
    // setting needle.originalColumn to 0, we thus find the last mapping for
    // the given line, provided such a mapping exists.
    var needle = {
      source: util.getArg(aArgs, 'source'),
      originalLine: line,
      originalColumn: util.getArg(aArgs, 'column', 0)
    };

    if (this.sourceRoot != null) {
      needle.source = util.relative(this.sourceRoot, needle.source);
    }
    if (!this._sources.has(needle.source)) {
      return [];
    }
    needle.source = this._sources.indexOf(needle.source);

    var mappings = [];

    var index = this._findMapping(needle,
                                  this._originalMappings,
                                  "originalLine",
                                  "originalColumn",
                                  util.compareByOriginalPositions,
                                  binarySearch.LEAST_UPPER_BOUND);
    if (index >= 0) {
      var mapping = this._originalMappings[index];

      if (aArgs.column === undefined) {
        var originalLine = mapping.originalLine;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we found. Since
        // mappings are sorted, this is guaranteed to find all mappings for
        // the line we found.
        while (mapping && mapping.originalLine === originalLine) {
          mappings.push({
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null),
            lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
          });

          mapping = this._originalMappings[++index];
        }
      } else {
        var originalColumn = mapping.originalColumn;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we were searching for.
        // Since mappings are sorted, this is guaranteed to find all mappings for
        // the line we are searching for.
        while (mapping &&
               mapping.originalLine === line &&
               mapping.originalColumn == originalColumn) {
          mappings.push({
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null),
            lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
          });

          mapping = this._originalMappings[++index];
        }
      }
    }

    return mappings;
  };

var SourceMapConsumer_1 = SourceMapConsumer;

/**
 * A BasicSourceMapConsumer instance represents a parsed source map which we can
 * query for information about the original file positions by giving it a file
 * position in the generated source.
 *
 * The only parameter is the raw source map (either as a JSON string, or
 * already parsed to an object). According to the spec, source maps have the
 * following attributes:
 *
 *   - version: Which version of the source map spec this map is following.
 *   - sources: An array of URLs to the original source files.
 *   - names: An array of identifiers which can be referrenced by individual mappings.
 *   - sourceRoot: Optional. The URL root from which all sources are relative.
 *   - sourcesContent: Optional. An array of contents of the original source files.
 *   - mappings: A string of base64 VLQs which contain the actual mappings.
 *   - file: Optional. The generated file this source map is associated with.
 *
 * Here is an example source map, taken from the source map spec[0]:
 *
 *     {
 *       version : 3,
 *       file: "out.js",
 *       sourceRoot : "",
 *       sources: ["foo.js", "bar.js"],
 *       names: ["src", "maps", "are", "fun"],
 *       mappings: "AA,AB;;ABCDE;"
 *     }
 *
 * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1#
 */
function BasicSourceMapConsumer(aSourceMap) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
  }

  var version = util.getArg(sourceMap, 'version');
  var sources = util.getArg(sourceMap, 'sources');
  // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which
  // requires the array) to play nice here.
  var names = util.getArg(sourceMap, 'names', []);
  var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
  var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
  var mappings = util.getArg(sourceMap, 'mappings');
  var file = util.getArg(sourceMap, 'file', null);

  // Once again, Sass deviates from the spec and supplies the version as a
  // string rather than a number, so we use loose equality checking here.
  if (version != this._version) {
    throw new Error('Unsupported version: ' + version);
  }

  sources = sources
    .map(String)
    // Some source maps produce relative source paths like "./foo.js" instead of
    // "foo.js".  Normalize these first so that future comparisons will succeed.
    // See bugzil.la/1090768.
    .map(util.normalize)
    // Always ensure that absolute sources are internally stored relative to
    // the source root, if the source root is absolute. Not doing this would
    // be particularly problematic when the source root is a prefix of the
    // source (valid, but why??). See github issue #199 and bugzil.la/1188982.
    .map(function (source) {
      return sourceRoot && util.isAbsolute(sourceRoot) && util.isAbsolute(source)
        ? util.relative(sourceRoot, source)
        : source;
    });

  // Pass `true` below to allow duplicate names and sources. While source maps
  // are intended to be compressed and deduplicated, the TypeScript compiler
  // sometimes generates source maps with duplicates in them. See Github issue
  // #72 and bugzil.la/889492.
  this._names = ArraySet.fromArray(names.map(String), true);
  this._sources = ArraySet.fromArray(sources, true);

  this.sourceRoot = sourceRoot;
  this.sourcesContent = sourcesContent;
  this._mappings = mappings;
  this.file = file;
}

BasicSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer;

/**
 * Create a BasicSourceMapConsumer from a SourceMapGenerator.
 *
 * @param SourceMapGenerator aSourceMap
 *        The source map that will be consumed.
 * @returns BasicSourceMapConsumer
 */
BasicSourceMapConsumer.fromSourceMap =
  function SourceMapConsumer_fromSourceMap(aSourceMap) {
    var smc = Object.create(BasicSourceMapConsumer.prototype);

    var names = smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);
    var sources = smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);
    smc.sourceRoot = aSourceMap._sourceRoot;
    smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(),
                                                            smc.sourceRoot);
    smc.file = aSourceMap._file;

    // Because we are modifying the entries (by converting string sources and
    // names to indices into the sources and names ArraySets), we have to make
    // a copy of the entry or else bad things happen. Shared mutable state
    // strikes again! See github issue #191.

    var generatedMappings = aSourceMap._mappings.toArray().slice();
    var destGeneratedMappings = smc.__generatedMappings = [];
    var destOriginalMappings = smc.__originalMappings = [];

    for (var i = 0, length = generatedMappings.length; i < length; i++) {
      var srcMapping = generatedMappings[i];
      var destMapping = new Mapping;
      destMapping.generatedLine = srcMapping.generatedLine;
      destMapping.generatedColumn = srcMapping.generatedColumn;

      if (srcMapping.source) {
        destMapping.source = sources.indexOf(srcMapping.source);
        destMapping.originalLine = srcMapping.originalLine;
        destMapping.originalColumn = srcMapping.originalColumn;

        if (srcMapping.name) {
          destMapping.name = names.indexOf(srcMapping.name);
        }

        destOriginalMappings.push(destMapping);
      }

      destGeneratedMappings.push(destMapping);
    }

    quickSort(smc.__originalMappings, util.compareByOriginalPositions);

    return smc;
  };

/**
 * The version of the source mapping spec that we are consuming.
 */
BasicSourceMapConsumer.prototype._version = 3;

/**
 * The list of original sources.
 */
Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', {
  get: function () {
    return this._sources.toArray().map(function (s) {
      return this.sourceRoot != null ? util.join(this.sourceRoot, s) : s;
    }, this);
  }
});

/**
 * Provide the JIT with a nice shape / hidden class.
 */
function Mapping() {
  this.generatedLine = 0;
  this.generatedColumn = 0;
  this.source = null;
  this.originalLine = null;
  this.originalColumn = null;
  this.name = null;
}

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
BasicSourceMapConsumer.prototype._parseMappings =
  function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    var generatedLine = 1;
    var previousGeneratedColumn = 0;
    var previousOriginalLine = 0;
    var previousOriginalColumn = 0;
    var previousSource = 0;
    var previousName = 0;
    var length = aStr.length;
    var index = 0;
    var cachedSegments = {};
    var temp = {};
    var originalMappings = [];
    var generatedMappings = [];
    var mapping, str, segment, end, value;

    while (index < length) {
      if (aStr.charAt(index) === ';') {
        generatedLine++;
        index++;
        previousGeneratedColumn = 0;
      }
      else if (aStr.charAt(index) === ',') {
        index++;
      }
      else {
        mapping = new Mapping();
        mapping.generatedLine = generatedLine;

        // Because each offset is encoded relative to the previous one,
        // many segments often have the same encoding. We can exploit this
        // fact by caching the parsed variable length fields of each segment,
        // allowing us to avoid a second parse if we encounter the same
        // segment again.
        for (end = index; end < length; end++) {
          if (this._charIsMappingSeparator(aStr, end)) {
            break;
          }
        }
        str = aStr.slice(index, end);

        segment = cachedSegments[str];
        if (segment) {
          index += str.length;
        } else {
          segment = [];
          while (index < end) {
            base64Vlq.decode(aStr, index, temp);
            value = temp.value;
            index = temp.rest;
            segment.push(value);
          }

          if (segment.length === 2) {
            throw new Error('Found a source, but no line and column');
          }

          if (segment.length === 3) {
            throw new Error('Found a source and line, but no column');
          }

          cachedSegments[str] = segment;
        }

        // Generated column.
        mapping.generatedColumn = previousGeneratedColumn + segment[0];
        previousGeneratedColumn = mapping.generatedColumn;

        if (segment.length > 1) {
          // Original source.
          mapping.source = previousSource + segment[1];
          previousSource += segment[1];

          // Original line.
          mapping.originalLine = previousOriginalLine + segment[2];
          previousOriginalLine = mapping.originalLine;
          // Lines are stored 0-based
          mapping.originalLine += 1;

          // Original column.
          mapping.originalColumn = previousOriginalColumn + segment[3];
          previousOriginalColumn = mapping.originalColumn;

          if (segment.length > 4) {
            // Original name.
            mapping.name = previousName + segment[4];
            previousName += segment[4];
          }
        }

        generatedMappings.push(mapping);
        if (typeof mapping.originalLine === 'number') {
          originalMappings.push(mapping);
        }
      }
    }

    quickSort(generatedMappings, util.compareByGeneratedPositionsDeflated);
    this.__generatedMappings = generatedMappings;

    quickSort(originalMappings, util.compareByOriginalPositions);
    this.__originalMappings = originalMappings;
  };

/**
 * Find the mapping that best matches the hypothetical "needle" mapping that
 * we are searching for in the given "haystack" of mappings.
 */
BasicSourceMapConsumer.prototype._findMapping =
  function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName,
                                         aColumnName, aComparator, aBias) {
    // To return the position we are searching for, we must first find the
    // mapping for the given position and then return the opposite position it
    // points to. Because the mappings are sorted, we can use binary search to
    // find the best mapping.

    if (aNeedle[aLineName] <= 0) {
      throw new TypeError('Line must be greater than or equal to 1, got '
                          + aNeedle[aLineName]);
    }
    if (aNeedle[aColumnName] < 0) {
      throw new TypeError('Column must be greater than or equal to 0, got '
                          + aNeedle[aColumnName]);
    }

    return binarySearch.search(aNeedle, aMappings, aComparator, aBias);
  };

/**
 * Compute the last column for each generated mapping. The last column is
 * inclusive.
 */
BasicSourceMapConsumer.prototype.computeColumnSpans =
  function SourceMapConsumer_computeColumnSpans() {
    for (var index = 0; index < this._generatedMappings.length; ++index) {
      var mapping = this._generatedMappings[index];

      // Mappings do not contain a field for the last generated columnt. We
      // can come up with an optimistic estimate, however, by assuming that
      // mappings are contiguous (i.e. given two consecutive mappings, the
      // first mapping ends where the second one starts).
      if (index + 1 < this._generatedMappings.length) {
        var nextMapping = this._generatedMappings[index + 1];

        if (mapping.generatedLine === nextMapping.generatedLine) {
          mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1;
          continue;
        }
      }

      // The last mapping for each line spans the entire line.
      mapping.lastGeneratedColumn = Infinity;
    }
  };

/**
 * Returns the original source, line, and column information for the generated
 * source's line and column positions provided. The only argument is an object
 * with the following properties:
 *
 *   - line: The line number in the generated source.
 *   - column: The column number in the generated source.
 *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
 *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
 *
 * and an object is returned with the following properties:
 *
 *   - source: The original source file, or null.
 *   - line: The line number in the original source, or null.
 *   - column: The column number in the original source, or null.
 *   - name: The original identifier, or null.
 */
BasicSourceMapConsumer.prototype.originalPositionFor =
  function SourceMapConsumer_originalPositionFor(aArgs) {
    var needle = {
      generatedLine: util.getArg(aArgs, 'line'),
      generatedColumn: util.getArg(aArgs, 'column')
    };

    var index = this._findMapping(
      needle,
      this._generatedMappings,
      "generatedLine",
      "generatedColumn",
      util.compareByGeneratedPositionsDeflated,
      util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
    );

    if (index >= 0) {
      var mapping = this._generatedMappings[index];

      if (mapping.generatedLine === needle.generatedLine) {
        var source = util.getArg(mapping, 'source', null);
        if (source !== null) {
          source = this._sources.at(source);
          if (this.sourceRoot != null) {
            source = util.join(this.sourceRoot, source);
          }
        }
        var name = util.getArg(mapping, 'name', null);
        if (name !== null) {
          name = this._names.at(name);
        }
        return {
          source: source,
          line: util.getArg(mapping, 'originalLine', null),
          column: util.getArg(mapping, 'originalColumn', null),
          name: name
        };
      }
    }

    return {
      source: null,
      line: null,
      column: null,
      name: null
    };
  };

/**
 * Return true if we have the source content for every source in the source
 * map, false otherwise.
 */
BasicSourceMapConsumer.prototype.hasContentsOfAllSources =
  function BasicSourceMapConsumer_hasContentsOfAllSources() {
    if (!this.sourcesContent) {
      return false;
    }
    return this.sourcesContent.length >= this._sources.size() &&
      !this.sourcesContent.some(function (sc) { return sc == null; });
  };

/**
 * Returns the original source content. The only argument is the url of the
 * original source file. Returns null if no original source content is
 * available.
 */
BasicSourceMapConsumer.prototype.sourceContentFor =
  function SourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
    if (!this.sourcesContent) {
      return null;
    }

    if (this.sourceRoot != null) {
      aSource = util.relative(this.sourceRoot, aSource);
    }

    if (this._sources.has(aSource)) {
      return this.sourcesContent[this._sources.indexOf(aSource)];
    }

    var url;
    if (this.sourceRoot != null
        && (url = util.urlParse(this.sourceRoot))) {
      // XXX: file:// URIs and absolute paths lead to unexpected behavior for
      // many users. We can help them out when they expect file:// URIs to
      // behave like it would if they were running a local HTTP server. See
      // https://bugzilla.mozilla.org/show_bug.cgi?id=885597.
      var fileUriAbsPath = aSource.replace(/^file:\/\//, "");
      if (url.scheme == "file"
          && this._sources.has(fileUriAbsPath)) {
        return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)]
      }

      if ((!url.path || url.path == "/")
          && this._sources.has("/" + aSource)) {
        return this.sourcesContent[this._sources.indexOf("/" + aSource)];
      }
    }

    // This function is used recursively from
    // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we
    // don't want to throw if we can't find the source - we just want to
    // return null, so we provide a flag to exit gracefully.
    if (nullOnMissing) {
      return null;
    }
    else {
      throw new Error('"' + aSource + '" is not in the SourceMap.');
    }
  };

/**
 * Returns the generated line and column information for the original source,
 * line, and column positions provided. The only argument is an object with
 * the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.
 *   - column: The column number in the original source.
 *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
 *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
 *
 * and an object is returned with the following properties:
 *
 *   - line: The line number in the generated source, or null.
 *   - column: The column number in the generated source, or null.
 */
BasicSourceMapConsumer.prototype.generatedPositionFor =
  function SourceMapConsumer_generatedPositionFor(aArgs) {
    var source = util.getArg(aArgs, 'source');
    if (this.sourceRoot != null) {
      source = util.relative(this.sourceRoot, source);
    }
    if (!this._sources.has(source)) {
      return {
        line: null,
        column: null,
        lastColumn: null
      };
    }
    source = this._sources.indexOf(source);

    var needle = {
      source: source,
      originalLine: util.getArg(aArgs, 'line'),
      originalColumn: util.getArg(aArgs, 'column')
    };

    var index = this._findMapping(
      needle,
      this._originalMappings,
      "originalLine",
      "originalColumn",
      util.compareByOriginalPositions,
      util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
    );

    if (index >= 0) {
      var mapping = this._originalMappings[index];

      if (mapping.source === needle.source) {
        return {
          line: util.getArg(mapping, 'generatedLine', null),
          column: util.getArg(mapping, 'generatedColumn', null),
          lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
        };
      }
    }

    return {
      line: null,
      column: null,
      lastColumn: null
    };
  };

var BasicSourceMapConsumer_1 = BasicSourceMapConsumer;

/**
 * An IndexedSourceMapConsumer instance represents a parsed source map which
 * we can query for information. It differs from BasicSourceMapConsumer in
 * that it takes "indexed" source maps (i.e. ones with a "sections" field) as
 * input.
 *
 * The only parameter is a raw source map (either as a JSON string, or already
 * parsed to an object). According to the spec for indexed source maps, they
 * have the following attributes:
 *
 *   - version: Which version of the source map spec this map is following.
 *   - file: Optional. The generated file this source map is associated with.
 *   - sections: A list of section definitions.
 *
 * Each value under the "sections" field has two fields:
 *   - offset: The offset into the original specified at which this section
 *       begins to apply, defined as an object with a "line" and "column"
 *       field.
 *   - map: A source map definition. This source map could also be indexed,
 *       but doesn't have to be.
 *
 * Instead of the "map" field, it's also possible to have a "url" field
 * specifying a URL to retrieve a source map from, but that's currently
 * unsupported.
 *
 * Here's an example source map, taken from the source map spec[0], but
 * modified to omit a section which uses the "url" field.
 *
 *  {
 *    version : 3,
 *    file: "app.js",
 *    sections: [{
 *      offset: {line:100, column:10},
 *      map: {
 *        version : 3,
 *        file: "section.js",
 *        sources: ["foo.js", "bar.js"],
 *        names: ["src", "maps", "are", "fun"],
 *        mappings: "AAAA,E;;ABCDE;"
 *      }
 *    }],
 *  }
 *
 * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt
 */
function IndexedSourceMapConsumer(aSourceMap) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
  }

  var version = util.getArg(sourceMap, 'version');
  var sections = util.getArg(sourceMap, 'sections');

  if (version != this._version) {
    throw new Error('Unsupported version: ' + version);
  }

  this._sources = new ArraySet();
  this._names = new ArraySet();

  var lastOffset = {
    line: -1,
    column: 0
  };
  this._sections = sections.map(function (s) {
    if (s.url) {
      // The url field will require support for asynchronicity.
      // See https://github.com/mozilla/source-map/issues/16
      throw new Error('Support for url field in sections not implemented.');
    }
    var offset = util.getArg(s, 'offset');
    var offsetLine = util.getArg(offset, 'line');
    var offsetColumn = util.getArg(offset, 'column');

    if (offsetLine < lastOffset.line ||
        (offsetLine === lastOffset.line && offsetColumn < lastOffset.column)) {
      throw new Error('Section offsets must be ordered and non-overlapping.');
    }
    lastOffset = offset;

    return {
      generatedOffset: {
        // The offset fields are 0-based, but we use 1-based indices when
        // encoding/decoding from VLQ.
        generatedLine: offsetLine + 1,
        generatedColumn: offsetColumn + 1
      },
      consumer: new SourceMapConsumer(util.getArg(s, 'map'))
    }
  });
}

IndexedSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer;

/**
 * The version of the source mapping spec that we are consuming.
 */
IndexedSourceMapConsumer.prototype._version = 3;

/**
 * The list of original sources.
 */
Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', {
  get: function () {
    var sources = [];
    for (var i = 0; i < this._sections.length; i++) {
      for (var j = 0; j < this._sections[i].consumer.sources.length; j++) {
        sources.push(this._sections[i].consumer.sources[j]);
      }
    }
    return sources;
  }
});

/**
 * Returns the original source, line, and column information for the generated
 * source's line and column positions provided. The only argument is an object
 * with the following properties:
 *
 *   - line: The line number in the generated source.
 *   - column: The column number in the generated source.
 *
 * and an object is returned with the following properties:
 *
 *   - source: The original source file, or null.
 *   - line: The line number in the original source, or null.
 *   - column: The column number in the original source, or null.
 *   - name: The original identifier, or null.
 */
IndexedSourceMapConsumer.prototype.originalPositionFor =
  function IndexedSourceMapConsumer_originalPositionFor(aArgs) {
    var needle = {
      generatedLine: util.getArg(aArgs, 'line'),
      generatedColumn: util.getArg(aArgs, 'column')
    };

    // Find the section containing the generated position we're trying to map
    // to an original position.
    var sectionIndex = binarySearch.search(needle, this._sections,
      function(needle, section) {
        var cmp = needle.generatedLine - section.generatedOffset.generatedLine;
        if (cmp) {
          return cmp;
        }

        return (needle.generatedColumn -
                section.generatedOffset.generatedColumn);
      });
    var section = this._sections[sectionIndex];

    if (!section) {
      return {
        source: null,
        line: null,
        column: null,
        name: null
      };
    }

    return section.consumer.originalPositionFor({
      line: needle.generatedLine -
        (section.generatedOffset.generatedLine - 1),
      column: needle.generatedColumn -
        (section.generatedOffset.generatedLine === needle.generatedLine
         ? section.generatedOffset.generatedColumn - 1
         : 0),
      bias: aArgs.bias
    });
  };

/**
 * Return true if we have the source content for every source in the source
 * map, false otherwise.
 */
IndexedSourceMapConsumer.prototype.hasContentsOfAllSources =
  function IndexedSourceMapConsumer_hasContentsOfAllSources() {
    return this._sections.every(function (s) {
      return s.consumer.hasContentsOfAllSources();
    });
  };

/**
 * Returns the original source content. The only argument is the url of the
 * original source file. Returns null if no original source content is
 * available.
 */
IndexedSourceMapConsumer.prototype.sourceContentFor =
  function IndexedSourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];

      var content = section.consumer.sourceContentFor(aSource, true);
      if (content) {
        return content;
      }
    }
    if (nullOnMissing) {
      return null;
    }
    else {
      throw new Error('"' + aSource + '" is not in the SourceMap.');
    }
  };

/**
 * Returns the generated line and column information for the original source,
 * line, and column positions provided. The only argument is an object with
 * the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.
 *   - column: The column number in the original source.
 *
 * and an object is returned with the following properties:
 *
 *   - line: The line number in the generated source, or null.
 *   - column: The column number in the generated source, or null.
 */
IndexedSourceMapConsumer.prototype.generatedPositionFor =
  function IndexedSourceMapConsumer_generatedPositionFor(aArgs) {
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];

      // Only consider this section if the requested source is in the list of
      // sources of the consumer.
      if (section.consumer.sources.indexOf(util.getArg(aArgs, 'source')) === -1) {
        continue;
      }
      var generatedPosition = section.consumer.generatedPositionFor(aArgs);
      if (generatedPosition) {
        var ret = {
          line: generatedPosition.line +
            (section.generatedOffset.generatedLine - 1),
          column: generatedPosition.column +
            (section.generatedOffset.generatedLine === generatedPosition.line
             ? section.generatedOffset.generatedColumn - 1
             : 0)
        };
        return ret;
      }
    }

    return {
      line: null,
      column: null
    };
  };

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
IndexedSourceMapConsumer.prototype._parseMappings =
  function IndexedSourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    this.__generatedMappings = [];
    this.__originalMappings = [];
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];
      var sectionMappings = section.consumer._generatedMappings;
      for (var j = 0; j < sectionMappings.length; j++) {
        var mapping = sectionMappings[j];

        var source = section.consumer._sources.at(mapping.source);
        if (section.consumer.sourceRoot !== null) {
          source = util.join(section.consumer.sourceRoot, source);
        }
        this._sources.add(source);
        source = this._sources.indexOf(source);

        var name = section.consumer._names.at(mapping.name);
        this._names.add(name);
        name = this._names.indexOf(name);

        // The mappings coming from the consumer for the section have
        // generated positions relative to the start of the section, so we
        // need to offset them to be relative to the start of the concatenated
        // generated file.
        var adjustedMapping = {
          source: source,
          generatedLine: mapping.generatedLine +
            (section.generatedOffset.generatedLine - 1),
          generatedColumn: mapping.generatedColumn +
            (section.generatedOffset.generatedLine === mapping.generatedLine
            ? section.generatedOffset.generatedColumn - 1
            : 0),
          originalLine: mapping.originalLine,
          originalColumn: mapping.originalColumn,
          name: name
        };

        this.__generatedMappings.push(adjustedMapping);
        if (typeof adjustedMapping.originalLine === 'number') {
          this.__originalMappings.push(adjustedMapping);
        }
      }
    }

    quickSort(this.__generatedMappings, util.compareByGeneratedPositionsDeflated);
    quickSort(this.__originalMappings, util.compareByOriginalPositions);
  };

var IndexedSourceMapConsumer_1 = IndexedSourceMapConsumer;

var sourceMapConsumer = {
	SourceMapConsumer: SourceMapConsumer_1,
	BasicSourceMapConsumer: BasicSourceMapConsumer_1,
	IndexedSourceMapConsumer: IndexedSourceMapConsumer_1
};

var stacktraceGps = createCommonjsModule$1(function (module, exports) {
(function(root, factory) {
    if (typeof undefined === 'function' && undefined.amd) {
        undefined('stacktrace-gps', ['source-map', 'stackframe'], factory);
    } else {
        module.exports = factory(sourceMapConsumer, stackframe);
    }
}(commonjsGlobal$1, function(SourceMap, StackFrame) {
    function _xdr(url) {
        return new Promise(function(resolve, reject) {
            var req = new XMLHttpRequest();
            req.open('get', url);
            req.onerror = reject;
            req.onreadystatechange = function onreadystatechange() {
                if (req.readyState === 4) {
                    if ((req.status >= 200 && req.status < 300) ||
                        (url.substr(0, 7) === 'file://' && req.responseText)) {
                        resolve(req.responseText);
                    } else {
                        reject(new Error('HTTP status: ' + req.status + ' retrieving ' + url));
                    }
                }
            };
            req.send();
        });

    }

    /**
     * Convert a Base64-encoded string into its original representation.
     * Used for inline sourcemaps.
     *
     * @param {String} b64str Base-64 encoded string
     * @returns {String} original representation of the base64-encoded string.
     */
    function _atob(b64str) {
        if (typeof index !== 'undefined' && index.atob) {
            return index.atob(b64str);
        } else {
            throw new Error('You must supply a polyfill for window.atob in this environment');
        }
    }

    function _parseJson(string) {
        if (typeof JSON !== 'undefined' && JSON.parse) {
            return JSON.parse(string);
        } else {
            throw new Error('You must supply a polyfill for JSON.parse in this environment');
        }
    }

    function _findFunctionName(source, lineNumber/*, columnNumber*/) {
        var syntaxes = [
            // {name} = function ({args}) TODO args capture
            /['"]?([$_A-Za-z][$_A-Za-z0-9]*)['"]?\s*[:=]\s*function\b/,
            // function {name}({args}) m[1]=name m[2]=args
            /function\s+([^('"`]*?)\s*\(([^)]*)\)/,
            // {name} = eval()
            /['"]?([$_A-Za-z][$_A-Za-z0-9]*)['"]?\s*[:=]\s*(?:eval|new Function)\b/,
            // fn_name() {
            /\b(?!(?:if|for|switch|while|with|catch)\b)(?:(?:static)\s+)?(\S+)\s*\(.*?\)\s*\{/,
            // {name} = () => {
            /['"]?([$_A-Za-z][$_A-Za-z0-9]*)['"]?\s*[:=]\s*\(.*?\)\s*=>/
        ];
        var lines = source.split('\n');

        // Walk backwards in the source lines until we find the line which matches one of the patterns above
        var code = '';
        var maxLines = Math.min(lineNumber, 20);
        for (var i = 0; i < maxLines; ++i) {
            // lineNo is 1-based, source[] is 0-based
            var line = lines[lineNumber - i - 1];
            var commentPos = line.indexOf('//');
            if (commentPos >= 0) {
                line = line.substr(0, commentPos);
            }

            if (line) {
                code = line + code;
                var len = syntaxes.length;
                for (var index$$1 = 0; index$$1 < len; index$$1++) {
                    var m = syntaxes[index$$1].exec(code);
                    if (m && m[1]) {
                        return m[1];
                    }
                }
            }
        }
        return undefined;
    }

    function _ensureSupportedEnvironment() {
        if (typeof Object.defineProperty !== 'function' || typeof Object.create !== 'function') {
            throw new Error('Unable to consume source maps in older browsers');
        }
    }

    function _ensureStackFrameIsLegit(stackframe$$2) {
        if (typeof stackframe$$2 !== 'object') {
            throw new TypeError('Given StackFrame is not an object');
        } else if (typeof stackframe$$2.fileName !== 'string') {
            throw new TypeError('Given file name is not a String');
        } else if (typeof stackframe$$2.lineNumber !== 'number' ||
            stackframe$$2.lineNumber % 1 !== 0 ||
            stackframe$$2.lineNumber < 1) {
            throw new TypeError('Given line number must be a positive integer');
        } else if (typeof stackframe$$2.columnNumber !== 'number' ||
            stackframe$$2.columnNumber % 1 !== 0 ||
            stackframe$$2.columnNumber < 0) {
            throw new TypeError('Given column number must be a non-negative integer');
        }
        return true;
    }

    function _findSourceMappingURL(source) {
        var m = /\/\/[#@] ?sourceMappingURL=([^\s'"]+)\s*$/m.exec(source);
        if (m && m[1]) {
            return m[1];
        } else {
            throw new Error('sourceMappingURL not found');
        }
    }

    function _extractLocationInfoFromSourceMapSource(stackframe$$2, sourceMapConsumer$$1, sourceCache) {
        return new Promise(function(resolve, reject) {
            var loc = sourceMapConsumer$$1.originalPositionFor({
                line: stackframe$$2.lineNumber,
                column: stackframe$$2.columnNumber
            });

            if (loc.source) {
                // cache mapped sources
                var mappedSource = sourceMapConsumer$$1.sourceContentFor(loc.source);
                if (mappedSource) {
                    sourceCache[loc.source] = mappedSource;
                }

                resolve(
                    // given stackframe and source location, update stackframe
                    new StackFrame({
                        functionName: loc.name || stackframe$$2.functionName,
                        args: stackframe$$2.args,
                        fileName: loc.source,
                        lineNumber: loc.line,
                        columnNumber: loc.column
                    }));
            } else {
                reject(new Error('Could not get original source for given stackframe and source map'));
            }
        });
    }

    /**
     * @constructor
     * @param {Object} opts
     *      opts.sourceCache = {url: "Source String"} => preload source cache
     *      opts.sourceMapConsumerCache = {/path/file.js.map: SourceMapConsumer}
     *      opts.offline = True to prevent network requests.
     *              Best effort without sources or source maps.
     *      opts.ajax = Promise returning function to make X-Domain requests
     */
    return function StackTraceGPS(opts) {
        if (!(this instanceof StackTraceGPS)) {
            return new StackTraceGPS(opts);
        }
        opts = opts || {};

        this.sourceCache = opts.sourceCache || {};
        this.sourceMapConsumerCache = opts.sourceMapConsumerCache || {};

        this.ajax = opts.ajax || _xdr;

        this._atob = opts.atob || _atob;

        this._get = function _get(location) {
            return new Promise(function(resolve, reject) {
                var isDataUrl = location.substr(0, 5) === 'data:';
                if (this.sourceCache[location]) {
                    resolve(this.sourceCache[location]);
                } else if (opts.offline && !isDataUrl) {
                    reject(new Error('Cannot make network requests in offline mode'));
                } else {
                    if (isDataUrl) {
                        // data URLs can have parameters.
                        // see http://tools.ietf.org/html/rfc2397
                        var supportedEncodingRegexp =
                            /^data:application\/json;([\w=:"-]+;)*base64,/;
                        var match = location.match(supportedEncodingRegexp);
                        if (match) {
                            var sourceMapStart = match[0].length;
                            var encodedSource = location.substr(sourceMapStart);
                            var source = this._atob(encodedSource);
                            this.sourceCache[location] = source;
                            resolve(source);
                        } else {
                            reject(new Error('The encoding of the inline sourcemap is not supported'));
                        }
                    } else {
                        var xhrPromise = this.ajax(location, {method: 'get'});
                        // Cache the Promise to prevent duplicate in-flight requests
                        this.sourceCache[location] = xhrPromise;
                        xhrPromise.then(resolve, reject);
                    }
                }
            }.bind(this));
        };

        /**
         * Creating SourceMapConsumers is expensive, so this wraps the creation of a
         * SourceMapConsumer in a per-instance cache.
         *
         * @param sourceMappingURL = {String} URL to fetch source map from
         * @param defaultSourceRoot = Default source root for source map if undefined
         * @returns {Promise} that resolves a SourceMapConsumer
         */
        this._getSourceMapConsumer = function _getSourceMapConsumer(sourceMappingURL, defaultSourceRoot) {
            return new Promise(function(resolve, reject) {
                if (this.sourceMapConsumerCache[sourceMappingURL]) {
                    resolve(this.sourceMapConsumerCache[sourceMappingURL]);
                } else {
                    var sourceMapConsumerPromise = new Promise(function(resolve, reject) {
                        return this._get(sourceMappingURL).then(function(sourceMapSource) {
                            if (typeof sourceMapSource === 'string') {
                                sourceMapSource = _parseJson(sourceMapSource.replace(/^\)\]\}'/, ''));
                            }
                            if (typeof sourceMapSource.sourceRoot === 'undefined') {
                                sourceMapSource.sourceRoot = defaultSourceRoot;
                            }

                            resolve(new SourceMap.SourceMapConsumer(sourceMapSource));
                        }, reject);
                    }.bind(this));
                    this.sourceMapConsumerCache[sourceMappingURL] = sourceMapConsumerPromise;
                    resolve(sourceMapConsumerPromise);
                }
            }.bind(this));
        };

        /**
         * Given a StackFrame, enhance function name and use source maps for a
         * better StackFrame.
         *
         * @param {StackFrame} stackframe object
         * @returns {Promise} that resolves with with source-mapped StackFrame
         */
        this.pinpoint = function StackTraceGPS$$pinpoint(stackframe$$2) {
            return new Promise(function(resolve, reject) {
                this.getMappedLocation(stackframe$$2).then(function(mappedStackFrame) {
                    function resolveMappedStackFrame() {
                        resolve(mappedStackFrame);
                    }

                    this.findFunctionName(mappedStackFrame)
                        .then(resolve, resolveMappedStackFrame)
                        ['catch'](resolveMappedStackFrame);
                }.bind(this), reject);
            }.bind(this));
        };

        /**
         * Given a StackFrame, guess function name from location information.
         *
         * @param {StackFrame} stackframe
         * @returns {Promise} that resolves with enhanced StackFrame.
         */
        this.findFunctionName = function StackTraceGPS$$findFunctionName(stackframe$$2) {
            return new Promise(function(resolve, reject) {
                _ensureStackFrameIsLegit(stackframe$$2);
                this._get(stackframe$$2.fileName).then(function getSourceCallback(source) {
                    var lineNumber = stackframe$$2.lineNumber;
                    var columnNumber = stackframe$$2.columnNumber;
                    var guessedFunctionName = _findFunctionName(source, lineNumber, columnNumber);
                    // Only replace functionName if we found something
                    if (guessedFunctionName) {
                        resolve(new StackFrame({
                            functionName: guessedFunctionName,
                            args: stackframe$$2.args,
                            fileName: stackframe$$2.fileName,
                            lineNumber: lineNumber,
                            columnNumber: columnNumber
                        }));
                    } else {
                        resolve(stackframe$$2);
                    }
                }, reject)['catch'](reject);
            }.bind(this));
        };

        /**
         * Given a StackFrame, seek source-mapped location and return new enhanced StackFrame.
         *
         * @param {StackFrame} stackframe
         * @returns {Promise} that resolves with enhanced StackFrame.
         */
        this.getMappedLocation = function StackTraceGPS$$getMappedLocation(stackframe$$2) {
            return new Promise(function(resolve, reject) {
                _ensureSupportedEnvironment();
                _ensureStackFrameIsLegit(stackframe$$2);

                var sourceCache = this.sourceCache;
                var fileName = stackframe$$2.fileName;
                this._get(fileName).then(function(source) {
                    var sourceMappingURL = _findSourceMappingURL(source);
                    var isDataUrl = sourceMappingURL.substr(0, 5) === 'data:';
                    var defaultSourceRoot = fileName.substring(0, fileName.lastIndexOf('/') + 1);

                    if (sourceMappingURL[0] !== '/' && !isDataUrl && !(/^https?:\/\/|^\/\//i).test(sourceMappingURL)) {
                        sourceMappingURL = defaultSourceRoot + sourceMappingURL;
                    }

                    return this._getSourceMapConsumer(sourceMappingURL, defaultSourceRoot).then(function(sourceMapConsumer$$1) {
                        return _extractLocationInfoFromSourceMapSource(stackframe$$2, sourceMapConsumer$$1, sourceCache)
                            .then(resolve)['catch'](function() {
                            resolve(stackframe$$2);
                        });
                    });
                }.bind(this), reject)['catch'](reject);
            }.bind(this));
        };
    };
}));
});

var stacktrace = createCommonjsModule$1(function (module, exports) {
(function(root, factory) {
    if (typeof undefined === 'function' && undefined.amd) {
        undefined('stacktrace', ['error-stack-parser', 'stack-generator', 'stacktrace-gps'], factory);
    } else {
        module.exports = factory(errorStackParser, stackGenerator, stacktraceGps);
    }
}(commonjsGlobal$1, function StackTrace(ErrorStackParser, StackGenerator, StackTraceGPS) {
    var _options = {
        filter: function(stackframe) {
            // Filter out stackframes for this library by default
            return (stackframe.functionName || '').indexOf('StackTrace$$') === -1 &&
                (stackframe.functionName || '').indexOf('ErrorStackParser$$') === -1 &&
                (stackframe.functionName || '').indexOf('StackTraceGPS$$') === -1 &&
                (stackframe.functionName || '').indexOf('StackGenerator$$') === -1;
        },
        sourceCache: {}
    };

    var _generateError = function StackTrace$$GenerateError() {
        try {
            // Error must be thrown to get stack in IE
            throw new Error();
        } catch (err) {
            return err;
        }
    };

    /**
     * Merge 2 given Objects. If a conflict occurs the second object wins.
     * Does not do deep merges.
     *
     * @param {Object} first base object
     * @param {Object} second overrides
     * @returns {Object} merged first and second
     * @private
     */
    function _merge(first, second) {
        var target = {};

        [first, second].forEach(function(obj) {
            for (var prop in obj) {
                if (obj.hasOwnProperty(prop)) {
                    target[prop] = obj[prop];
                }
            }
            return target;
        });

        return target;
    }

    function _isShapedLikeParsableError(err) {
        return err.stack || err['opera#sourceloc'];
    }

    function _filtered(stackframes, filter) {
        if (typeof filter === 'function') {
            return stackframes.filter(filter);
        }
        return stackframes;
    }

    return {
        /**
         * Get a backtrace from invocation point.
         *
         * @param {Object} opts
         * @returns {Array} of StackFrame
         */
        get: function StackTrace$$get(opts) {
            var err = _generateError();
            return _isShapedLikeParsableError(err) ? this.fromError(err, opts) : this.generateArtificially(opts);
        },

        /**
         * Get a backtrace from invocation point.
         * IMPORTANT: Does not handle source maps or guess function names!
         *
         * @param {Object} opts
         * @returns {Array} of StackFrame
         */
        getSync: function StackTrace$$getSync(opts) {
            opts = _merge(_options, opts);
            var err = _generateError();
            var stack = _isShapedLikeParsableError(err) ? ErrorStackParser.parse(err) : StackGenerator.backtrace(opts);
            return _filtered(stack, opts.filter);
        },

        /**
         * Given an error object, parse it.
         *
         * @param {Error} error object
         * @param {Object} opts
         * @returns {Promise} for Array[StackFrame}
         */
        fromError: function StackTrace$$fromError(error, opts) {
            opts = _merge(_options, opts);
            var gps = new StackTraceGPS(opts);
            return new Promise(function(resolve) {
                var stackframes = _filtered(ErrorStackParser.parse(error), opts.filter);
                resolve(Promise.all(stackframes.map(function(sf) {
                    return new Promise(function(resolve) {
                        function resolveOriginal() {
                            resolve(sf);
                        }

                        gps.pinpoint(sf).then(resolve, resolveOriginal)['catch'](resolveOriginal);
                    });
                })));
            }.bind(this));
        },

        /**
         * Use StackGenerator to generate a backtrace.
         *
         * @param {Object} opts
         * @returns {Promise} of Array[StackFrame]
         */
        generateArtificially: function StackTrace$$generateArtificially(opts) {
            opts = _merge(_options, opts);
            var stackFrames = StackGenerator.backtrace(opts);
            if (typeof opts.filter === 'function') {
                stackFrames = stackFrames.filter(opts.filter);
            }
            return Promise.resolve(stackFrames);
        },

        /**
         * Given a function, wrap it such that invocations trigger a callback that
         * is called with a stack trace.
         *
         * @param {Function} fn to be instrumented
         * @param {Function} callback function to call with a stack trace on invocation
         * @param {Function} errback optional function to call with error if unable to get stack trace.
         * @param {Object} thisArg optional context object (e.g. window)
         */
        instrument: function StackTrace$$instrument(fn, callback, errback, thisArg) {
            if (typeof fn !== 'function') {
                throw new Error('Cannot instrument non-function object');
            } else if (typeof fn.__stacktraceOriginalFn === 'function') {
                // Already instrumented, return given Function
                return fn;
            }

            var instrumented = function StackTrace$$instrumented() {
                try {
                    this.get().then(callback, errback)['catch'](errback);
                    return fn.apply(thisArg || this, arguments);
                } catch (e) {
                    if (_isShapedLikeParsableError(e)) {
                        this.fromError(e).then(callback, errback)['catch'](errback);
                    }
                    throw e;
                }
            }.bind(this);
            instrumented.__stacktraceOriginalFn = fn;

            return instrumented;
        },

        /**
         * Given a function that has been instrumented,
         * revert the function to it's original (non-instrumented) state.
         *
         * @param {Function} fn to de-instrument
         */
        deinstrument: function StackTrace$$deinstrument(fn) {
            if (typeof fn !== 'function') {
                throw new Error('Cannot de-instrument non-function object');
            } else if (typeof fn.__stacktraceOriginalFn === 'function') {
                return fn.__stacktraceOriginalFn;
            } else {
                // Function not instrumented, return original
                return fn;
            }
        },

        /**
         * Given an error message and Array of StackFrames, serialize and POST to given URL.
         *
         * @param {Array} stackframes
         * @param {String} url
         * @param {String} errorMsg
         * @param {Object} requestOptions
         */
        report: function StackTrace$$report(stackframes, url, errorMsg, requestOptions) {
            return new Promise(function(resolve, reject) {
                var req = new XMLHttpRequest();
                req.onerror = reject;
                req.onreadystatechange = function onreadystatechange() {
                    if (req.readyState === 4) {
                        if (req.status >= 200 && req.status < 400) {
                            resolve(req.responseText);
                        } else {
                            reject(new Error('POST to ' + url + ' failed with status: ' + req.status));
                        }
                    }
                };
                req.open('post', url);

                // Set request headers
                req.setRequestHeader('Content-Type', 'application/json');
                if (requestOptions && typeof requestOptions.headers === 'object') {
                    var headers = requestOptions.headers;
                    for (var header in headers) {
                        if (headers.hasOwnProperty(header)) {
                            req.setRequestHeader(header, headers[header]);
                        }
                    }
                }

                var reportPayload = {stack: stackframes};
                if (errorMsg !== undefined && errorMsg !== null) {
                    reportPayload.message = errorMsg;
                }

                req.send(JSON.stringify(reportPayload));
            });
        }
    };
}));
});

index.stacktrace = stacktrace;

function test (testDescription, ...args) {
  let location = stacktrace.getSync()[1];
  var testFunction = args.pop();
  var testCase = new TestCase(testDescription, testFunction, location, args, { parallel: true });
  testHandler.register(testCase);
}

test('set property', async function xml0 (t) {
  var { users, xml0, xml1 } = await initArrays(t, { users: 2 });
  xml0.setAttribute('height', 10);
  t.assert(xml0.getAttribute('height') === 10, 'Simple set+get works');
  await flushAll(t, users);
  t.assert(xml1.getAttribute('height') === 10, 'Simple set+get works (remote)');
  await compareUsers(t, users);
});

/* TODO: Test YXml events!
test('events', async function xml1 (t) {
  var { users, xml0, xml1 } = await initArrays(t, { users: 2 })
  var event
  var remoteEvent
  let expectedEvent
  xml0.observe(function (e) {
    delete e._content
    delete e.nodes
    delete e.values
    event = e
  })
  xml1.observe(function (e) {
    delete e._content
    delete e.nodes
    delete e.values
    remoteEvent = e
  })
  xml0.setAttribute('key', 'value')
  expectedEvent = {
    type: 'attributeChanged',
    value: 'value',
    name: 'key'
  }
  t.compare(event, expectedEvent, 'attribute changed event')
  await flushAll(t, users)
  t.compare(remoteEvent, expectedEvent, 'attribute changed event (remote)')
  // check attributeRemoved
  xml0.removeAttribute('key')
  expectedEvent = {
    type: 'attributeRemoved',
    name: 'key'
  }
  t.compare(event, expectedEvent, 'attribute deleted event')
  await flushAll(t, users)
  t.compare(remoteEvent, expectedEvent, 'attribute deleted event (remote)')
  // test childInserted event
  expectedEvent = {
    type: 'childInserted',
    index: 0
  }
  xml0.insert(0, [new Y.XmlText('some text')])
  t.compare(event, expectedEvent, 'child inserted event')
  await flushAll(t, users)
  t.compare(remoteEvent, expectedEvent, 'child inserted event (remote)')
  // test childRemoved
  xml0.delete(0)
  expectedEvent = {
    type: 'childRemoved',
    index: 0
  }
  t.compare(event, expectedEvent, 'child deleted event')
  await flushAll(t, users)
  t.compare(remoteEvent, expectedEvent, 'child deleted event (remote)')
  await compareUsers(t, users)
})
*/

test('attribute modifications (y -> dom)', async function xml2 (t) {
  var { users, xml0 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  xml0.setAttribute('height', '100px');
  await wait();
  t.assert(dom0.getAttribute('height') === '100px', 'setAttribute');
  xml0.removeAttribute('height');
  await wait();
  t.assert(dom0.getAttribute('height') == null, 'removeAttribute');
  xml0.setAttribute('class', 'stuffy stuff');
  await wait();
  t.assert(dom0.getAttribute('class') === 'stuffy stuff', 'set class attribute');
  await compareUsers(t, users);
});

test('attribute modifications (dom -> y)', async function xml3 (t) {
  var { users, xml0 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  dom0.setAttribute('height', '100px');
  await wait();
  t.assert(xml0.getAttribute('height') === '100px', 'setAttribute');
  dom0.removeAttribute('height');
  await wait();
  t.assert(xml0.getAttribute('height') == null, 'removeAttribute');
  dom0.setAttribute('class', 'stuffy stuff');
  await wait();
  t.assert(xml0.getAttribute('class') === 'stuffy stuff', 'set class attribute');
  await compareUsers(t, users);
});

test('element insert (dom -> y)', async function xml4 (t) {
  var { users, xml0 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  dom0.insertBefore(document.createTextNode('some text'), null);
  dom0.insertBefore(document.createElement('p'), null);
  await wait();
  t.assert(xml0.get(0).toString() === 'some text', 'Retrieve Text Node');
  t.assert(xml0.get(1).nodeName === 'P', 'Retrieve Element node');
  await compareUsers(t, users);
});

test('element insert (y -> dom)', async function xml5 (t) {
  var { users, xml0 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  xml0.insert(0, [new Y$1.XmlText('some text')]);
  xml0.insert(1, [new Y$1.XmlElement('p')]);
  t.assert(dom0.childNodes[0].textContent === 'some text', 'Retrieve Text node');
  t.assert(dom0.childNodes[1].nodeName === 'P', 'Retrieve Element node');
  await compareUsers(t, users);
});

test('y on insert, then delete (dom -> y)', async function xml6 (t) {
  var { users, xml0 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  dom0.insertBefore(document.createElement('p'), null);
  await wait();
  t.assert(xml0.length === 1, 'one node present');
  dom0.childNodes[0].remove();
  await wait();
  t.assert(xml0.length === 0, 'no node present after delete');
  await compareUsers(t, users);
});

test('y on insert, then delete (y -> dom)', async function xml7 (t) {
  var { users, xml0 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  xml0.insert(0, [new Y$1.XmlElement('p')]);
  t.assert(dom0.childNodes[0].nodeName === 'P', 'Get inserted element from dom');
  xml0.delete(0, 1);
  t.assert(dom0.childNodes.length === 0, '#childNodes is empty after delete');
  await compareUsers(t, users);
});

test('delete consecutive (1) (Text)', async function xml8 (t) {
  var { users, xml0 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  xml0.insert(0, [new Y$1.XmlText('1'), new Y$1.XmlText('2'), new Y$1.XmlText('3')]);
  await wait();
  xml0.delete(1, 2);
  await wait();
  t.assert(xml0.length === 1, 'check length (y)');
  t.assert(dom0.childNodes.length === 1, 'check length (dom)');
  t.assert(dom0.childNodes[0].textContent === '1', 'check content');
  await compareUsers(t, users);
});

test('delete consecutive (2) (Text)', async function xml9 (t) {
  var { users, xml0 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  xml0.insert(0, [new Y$1.XmlText('1'), new Y$1.XmlText('2'), new Y$1.XmlText('3')]);
  await wait();
  xml0.delete(0, 1);
  xml0.delete(1, 1);
  await wait();
  t.assert(xml0.length === 1, 'check length (y)');
  t.assert(dom0.childNodes.length === 1, 'check length (dom)');
  t.assert(dom0.childNodes[0].textContent === '2', 'check content');
  await compareUsers(t, users);
});

test('delete consecutive (1) (Element)', async function xml10 (t) {
  var { users, xml0 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  xml0.insert(0, [new Y$1.XmlElement('A'), new Y$1.XmlElement('B'), new Y$1.XmlElement('C')]);
  await wait();
  xml0.delete(1, 2);
  await wait();
  t.assert(xml0.length === 1, 'check length (y)');
  t.assert(dom0.childNodes.length === 1, 'check length (dom)');
  t.assert(dom0.childNodes[0].nodeName === 'A', 'check content');
  await compareUsers(t, users);
});

test('delete consecutive (2) (Element)', async function xml11 (t) {
  var { users, xml0 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  xml0.insert(0, [new Y$1.XmlElement('A'), new Y$1.XmlElement('B'), new Y$1.XmlElement('C')]);
  await wait();
  xml0.delete(0, 1);
  xml0.delete(1, 1);
  await wait();
  t.assert(xml0.length === 1, 'check length (y)');
  t.assert(dom0.childNodes.length === 1, 'check length (dom)');
  t.assert(dom0.childNodes[0].nodeName === 'B', 'check content');
  await compareUsers(t, users);
});

test('Receive a bunch of elements (with disconnect)', async function xml12 (t) {
  var { users, xml0, xml1 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  let dom1 = xml1.getDom();
  users[1].disconnect();
  xml0.insert(0, [new Y$1.XmlElement('A'), new Y$1.XmlElement('B'), new Y$1.XmlElement('C')]);
  xml0.insert(0, [new Y$1.XmlElement('X'), new Y$1.XmlElement('Y'), new Y$1.XmlElement('Z')]);
  await users[1].reconnect();
  await flushAll(t, users);
  t.assert(xml0.length === 6, 'check length (y)');
  t.assert(xml1.length === 6, 'check length (y) (reconnected user)');
  t.assert(dom0.childNodes.length === 6, 'check length (dom)');
  t.assert(dom1.childNodes.length === 6, 'check length (dom) (reconnected user)');
  await compareUsers(t, users);
});

test('move element to a different position', async function xml13 (t) {
  var { users, xml0, xml1 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  let dom1 = xml1.getDom();
  dom0.append(document.createElement('div'));
  dom0.append(document.createElement('h1'));
  await flushAll(t, users);
  dom1.insertBefore(dom1.childNodes[0], null);
  t.assert(dom1.childNodes[0].nodeName === 'H1', 'div was deleted (user 0)');
  t.assert(dom1.childNodes[1].nodeName === 'DIV', 'div was moved to the correct position (user 0)');
  t.assert(dom1.childNodes[0].nodeName === 'H1', 'div was deleted (user 1)');
  t.assert(dom1.childNodes[1].nodeName === 'DIV', 'div was moved to the correct position (user 1)');
  await compareUsers(t, users);
});

test('filter node', async function xml14 (t) {
  var { users, xml0, xml1 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  let dom1 = xml1.getDom();
  let domFilter = (node, attrs) => {
    if (node.nodeName === 'H1') {
      return null
    } else {
      return attrs
    }
  };
  xml0.setDomFilter(domFilter);
  xml1.setDomFilter(domFilter);
  dom0.append(document.createElement('div'));
  dom0.append(document.createElement('h1'));
  await flushAll(t, users);
  t.assert(dom1.childNodes.length === 1, 'Only one node was not transmitted');
  t.assert(dom1.childNodes[0].nodeName === 'DIV', 'div node was transmitted');
  await compareUsers(t, users);
});

test('filter attribute', async function xml15 (t) {
  var { users, xml0, xml1 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  let dom1 = xml1.getDom();
  let domFilter = (node, attrs) => {
    return attrs.filter(name => name !== 'hidden')
  };
  xml0.setDomFilter(domFilter);
  xml1.setDomFilter(domFilter);
  dom0.setAttribute('hidden', 'true');
  dom0.setAttribute('style', 'height: 30px');
  dom0.setAttribute('data-me', '77');
  await flushAll(t, users);
  t.assert(dom0.getAttribute('hidden') === 'true', 'User 0 still has the attribute');
  t.assert(dom1.getAttribute('hidden') == null, 'User 1 did not receive update');
  t.assert(dom1.getAttribute('style') === 'height: 30px', 'User 1 received style update');
  t.assert(dom1.getAttribute('data-me') === '77', 'User 1 received data update');
  await compareUsers(t, users);
});

test('deep element insert', async function xml16 (t) {
  var { users, xml0, xml1 } = await initArrays(t, { users: 3 });
  let dom0 = xml0.getDom();
  let dom1 = xml1.getDom();
  let deepElement = document.createElement('p');
  let boldElement = document.createElement('b');
  let attrElement = document.createElement('img');
  attrElement.setAttribute('src', 'http:localhost:8080/nowhere');
  boldElement.append(document.createTextNode('hi'));
  deepElement.append(boldElement);
  deepElement.append(attrElement);
  dom0.append(deepElement);
  console.log(dom0.outerHTML);
  let str0 = dom0.outerHTML;
  await flushAll(t, users);
  let str1 = dom1.outerHTML;
  t.compare(str0, str1, 'Dom string representation matches');
  await compareUsers(t, users);
});

test('treeWalker', async function xml17 (t) {
  var { users, xml0 } = await initArrays(t, { users: 3 });
  let paragraph1 = new Y$1.XmlElement('p');
  let paragraph2 = new Y$1.XmlElement('p');
  let text1 = new Y$1.Text('init');
  let text2 = new Y$1.Text('text');
  paragraph1.insert(0, [text1, text2]);
  xml0.insert(0, [paragraph1, paragraph2, new Y$1.XmlElement('img')]);
  let allParagraphs = xml0.querySelectorAll('p');
  t.assert(allParagraphs.length === 2, 'found exactly two paragraphs');
  t.assert(allParagraphs[0] === paragraph1, 'querySelectorAll found paragraph1');
  t.assert(allParagraphs[1] === paragraph2, 'querySelectorAll found paragraph2');
  t.assert(xml0.querySelector('p') === paragraph1, 'querySelector found paragraph1');
  await compareUsers(t, users);
});

// TODO: move elements
var xmlTransactions = [
  function attributeChange (t, user, chance) {
    user.get('xml', Y$1.XmlElement).getDom().setAttribute(chance.word(), chance.word());
  },
  function attributeChangeHidden (t, user, chance) {
    user.get('xml', Y$1.XmlElement).getDom().setAttribute('hidden', chance.word());
  },
  function insertText (t, user, chance) {
    let dom = user.get('xml', Y$1.XmlElement).getDom();
    var succ = dom.children.length > 0 ? chance.pickone(dom.children) : null;
    dom.insertBefore(document.createTextNode(chance.word()), succ);
  },
  function insertHiddenDom (t, user, chance) {
    let dom = user.get('xml', Y$1.XmlElement).getDom();
    var succ = dom.children.length > 0 ? chance.pickone(dom.children) : null;
    dom.insertBefore(document.createElement('hidden'), succ);
  },
  function insertDom (t, user, chance) {
    let dom = user.get('xml', Y$1.XmlElement).getDom();
    var succ = dom.children.length > 0 ? chance.pickone(dom.children) : null;
    dom.insertBefore(document.createElement(chance.word()), succ);
  },
  function deleteChild (t, user, chance) {
    let dom = user.get('xml', Y$1.XmlElement).getDom();
    if (dom.childNodes.length > 0) {
      var d = chance.pickone(dom.childNodes);
      d.remove();
    }
  },
  function insertTextSecondLayer (t, user, chance) {
    let dom = user.get('xml', Y$1.XmlElement).getDom();
    if (dom.children.length > 0) {
      let dom2 = chance.pickone(dom.children);
      let succ = dom2.childNodes.length > 0 ? chance.pickone(dom2.childNodes) : null;
      dom2.insertBefore(document.createTextNode(chance.word()), succ);
    }
  },
  function insertDomSecondLayer (t, user, chance) {
    let dom = user.get('xml', Y$1.XmlElement).getDom();
    if (dom.children.length > 0) {
      let dom2 = chance.pickone(dom.children);
      let succ = dom2.childNodes.length > 0 ? chance.pickone(dom2.childNodes) : null;
      dom2.insertBefore(document.createElement(chance.word()), succ);
    }
  },
  function deleteChildSecondLayer (t, user, chance) {
    let dom = user.get('xml', Y$1.XmlElement).getDom();
    if (dom.children.length > 0) {
      let dom2 = chance.pickone(dom.children);
      if (dom2.childNodes.length > 0) {
        let d = chance.pickone(dom2.childNodes);
        d.remove();
      }
    }
  }
];

test('y-xml: Random tests (10)', async function xmlRandom10 (t) {
  await applyRandomTests(t, xmlTransactions, 10);
});

test('y-xml: Random tests (42)', async function xmlRandom42 (t) {
  await applyRandomTests(t, xmlTransactions, 42);
});

test('y-xml: Random tests (43)', async function xmlRandom43 (t) {
  await applyRandomTests(t, xmlTransactions, 43);
});

test('y-xml: Random tests (44)', async function xmlRandom44 (t) {
  await applyRandomTests(t, xmlTransactions, 44);
});

test('y-xml: Random tests (45)', async function xmlRandom45 (t) {
  await applyRandomTests(t, xmlTransactions, 45);
});

test('y-xml: Random tests (46)', async function xmlRandom46 (t) {
  await applyRandomTests(t, xmlTransactions, 46);
});

test('y-xml: Random tests (47)', async function xmlRandom47 (t) {
  await applyRandomTests(t, xmlTransactions, 47);
});

test('y-xml: Random tests (100)', async function xmlRandom100 (t) {
  await applyRandomTests(t, xmlTransactions, 100);
});

test('y-xml: Random tests (200)', async function xmlRandom200 (t) {
  await applyRandomTests(t, xmlTransactions, 200);
});

test('y-xml: Random tests (500)', async function xmlRandom500 (t) {
  await applyRandomTests(t, xmlTransactions, 500);
});

test('y-xml: Random tests (1000)', async function xmlRandom1000 (t) {
  await applyRandomTests(t, xmlTransactions, 1000);
});

Object.defineProperty(exports, '__esModule', { value: true });

})));
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