text: (function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
    typeof define === 'function' && define.amd ? define(factory) :
    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.rexymlachievementsplugin = factory());
  })(this, (function () { 'use strict';
  
    function _typeof(obj) {
      "@babel/helpers - typeof";
  
      return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
        return typeof obj;
      } : function (obj) {
        return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
      }, _typeof(obj);
    }
  
    function _classCallCheck(instance, Constructor) {
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        descriptor.configurable = true;
        if ("value" in descriptor) descriptor.writable = true;
        Object.defineProperty(target, descriptor.key, descriptor);
      }
    }
  
    function _createClass(Constructor, protoProps, staticProps) {
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      if (staticProps) _defineProperties(Constructor, staticProps);
      Object.defineProperty(Constructor, "prototype", {
        writable: false
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      return Constructor;
    }
  
    function _inherits(subClass, superClass) {
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        throw new TypeError("Super expression must either be null or a function");
      }
  
      subClass.prototype = Object.create(superClass && superClass.prototype, {
        constructor: {
          value: subClass,
          writable: true,
          configurable: true
        }
      });
      Object.defineProperty(subClass, "prototype", {
        writable: false
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      if (superClass) _setPrototypeOf(subClass, superClass);
    }
  
    function _getPrototypeOf(o) {
      _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
        return o.__proto__ || Object.getPrototypeOf(o);
      };
      return _getPrototypeOf(o);
    }
  
    function _setPrototypeOf(o, p) {
      _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
        o.__proto__ = p;
        return o;
      };
  
      return _setPrototypeOf(o, p);
    }
  
    function _isNativeReflectConstruct() {
      if (typeof Reflect === "undefined" || !Reflect.construct) return false;
      if (Reflect.construct.sham) return false;
      if (typeof Proxy === "function") return true;
  
      try {
        Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
        return true;
      } catch (e) {
        return false;
      }
    }
  
    function _assertThisInitialized(self) {
      if (self === void 0) {
        throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
      }
  
      return self;
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    function _possibleConstructorReturn(self, call) {
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      }
  
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    }
  
    function _createSuper(Derived) {
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      return function _createSuperInternal() {
        var Super = _getPrototypeOf(Derived),
            result;
  
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        } else {
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    }
  
    var Clear = function Clear(obj) {
      if (_typeof(obj) !== 'object' || obj === null) {
        return obj;
      }
  
      if (Array.isArray(obj)) {
        obj.length = 0;
      } else {
        for (var key in obj) {
          delete obj[key];
        }
      }
  
      return obj;
    };
  
    var Achievements$1 = /*#__PURE__*/function () {
      function Achievements() {
        _classCallCheck(this, Achievements);
  
        this.achievements = {};
        this.obtainedStates = {};
      }
  
      _createClass(Achievements, [{
        key: "clear",
        value: function clear() {
          Clear(this.achievements);
          Clear(this.obtainedStates);
          return this;
        }
      }, {
        key: "add",
        value: function add(levelName, achievementName, callback) {
          if (!this.achievements.hasOwnProperty(levelName)) {
            this.achievements[levelName] = [];
          }
  
          this.achievements[levelName].push({
            name: achievementName,
            "function": callback
          });
          return this;
        }
      }, {
        key: "getAchievements",
        value: function getAchievements(levelName) {
          return this.achievements[levelName];
        }
      }, {
        key: "getObtainedState",
        value: function getObtainedState(levelName, achievementName) {
          if (levelName === undefined) {
            return this.obtainedStates;
          }
  
          if (!this.obtainedStates.hasOwnProperty(levelName)) {
            this.obtainedStates[levelName] = {};
          }
  
          var obtainedStates = this.obtainedStates[levelName];
  
          if (achievementName === undefined) {
            return obtainedStates;
          }
  
          if (!obtainedStates.hasOwnProperty(achievementName)) {
            obtainedStates[achievementName] = {
              wasObtained: false,
              justObtained: false
            };
          }
  
          return obtainedStates[achievementName];
        }
      }, {
        key: "runTest",
        value: function runTest(levelName, context) {
          var achievements = this.getAchievements(levelName);
  
          if (achievements === undefined) {
            return this;
          }
  
          var obtainedState;
  
          for (var i = 0, cnt = achievements.length; i < cnt; i++) {
            obtainedState = this.getObtainedState(levelName, achievements[i].name);
            obtainedState.justObtained = false;
  
            if (obtainedState.wasObtained) {
              continue;
            }
  
            if (!achievements[i]["function"](context)) {
              continue;
            }
  
            obtainedState.justObtained = true;
            obtainedState.wasObtained = true;
          }
  
          return this;
        }
      }, {
        key: "getTestResults",
        value: function getTestResults(levelName, context) {
          this.runTest(levelName, context);
          return this.getObtainedState(levelName);
        }
      }, {
        key: "forEachObtainedState",
        value: function forEachObtainedState(levelName, callback, scope) {
          var achievements = this.getAchievements(levelName);
  
          if (achievements === undefined) {
            return this;
          }
  
          var achievementName, obtainedState;
  
          for (var i = 0, cnt = achievements.length; i < cnt; i++) {
            achievementName = achievements[i].name;
            obtainedState = this.getObtainedState(levelName, achievementName);
  
            if (scope) {
              callback.call(scope, levelName, achievementName, obtainedState);
            } else {
              callback(levelName, achievementName, obtainedState);
            }
          }
  
          return this;
        }
      }, {
        key: "getLevelNames",
        value: function getLevelNames(out) {
          if (out === undefined) {
            out = [];
          }
  
          for (var levelName in this.achievements) {
            out.push(levelName);
          }
  
          return out;
        }
      }, {
        key: "getAchievementNames",
        value: function getAchievementNames(levelName, out) {
          if (out === undefined) {
            out = [];
          }
  
          var achievements = this.getAchievements(levelName);
  
          if (!achievements) {
            return out;
          }
  
          for (var i = 0, cnt = achievements.length; i < cnt; i++) {
            out.push(achievements[i].name);
          }
  
          return names;
        }
      }, {
        key: "loadObtainedStates",
        value: function loadObtainedStates(states) {
          this.obtainedStates = states;
          return this;
        }
      }, {
        key: "getObtainedStates",
        value: function getObtainedStates() {
          return this.obtainedStates;
        }
      }, {
        key: "setObtainedState",
        value: function setObtainedState(levelName, achievementName, value) {
          if (value === undefined) {
            value = true;
          }
  
          var obtainedState = this.getObtainedState(levelName, achievementName);
          obtainedState.wasObtained = value;
          obtainedState.justObtained = value;
          return this;
        }
      }, {
        key: "clearObtainedState",
        value: function clearObtainedState(levelName, achievementName) {
          this.setObtainedState(levelName, achievementName, gfalse);
          return this;
        }
      }]);
  
      return Achievements;
    }();
  
    /*! js-yaml 4.1.0 https://github.com/nodeca/js-yaml @license MIT */
    function isNothing(subject) {
      return (typeof subject === 'undefined') || (subject === null);
    }
  
  
    function isObject(subject) {
      return (typeof subject === 'object') && (subject !== null);
    }
  
  
    function toArray(sequence) {
      if (Array.isArray(sequence)) return sequence;
      else if (isNothing(sequence)) return [];
  
      return [ sequence ];
    }
  
  
    function extend(target, source) {
      var index, length, key, sourceKeys;
  
      if (source) {
        sourceKeys = Object.keys(source);
  
        for (index = 0, length = sourceKeys.length; index < length; index += 1) {
          key = sourceKeys[index];
          target[key] = source[key];
        }
      }
  
      return target;
    }
  
  
    function repeat(string, count) {
      var result = '', cycle;
  
      for (cycle = 0; cycle < count; cycle += 1) {
        result += string;
      }
  
      return result;
    }
  
  
    function isNegativeZero(number) {
      return (number === 0) && (Number.NEGATIVE_INFINITY === 1 / number);
    }
  
  
    var isNothing_1      = isNothing;
    var isObject_1       = isObject;
    var toArray_1        = toArray;
    var repeat_1         = repeat;
    var isNegativeZero_1 = isNegativeZero;
    var extend_1         = extend;
  
    var common = {
    	isNothing: isNothing_1,
    	isObject: isObject_1,
    	toArray: toArray_1,
    	repeat: repeat_1,
    	isNegativeZero: isNegativeZero_1,
    	extend: extend_1
    };
  
    // YAML error class. http://stackoverflow.com/questions/8458984
  
  
    function formatError(exception, compact) {
      var where = '', message = exception.reason || '(unknown reason)';
  
      if (!exception.mark) return message;
  
      if (exception.mark.name) {
        where += 'in "' + exception.mark.name + '" ';
      }
  
      where += '(' + (exception.mark.line + 1) + ':' + (exception.mark.column + 1) + ')';
  
      if (!compact && exception.mark.snippet) {
        where += '\n\n' + exception.mark.snippet;
      }
  
      return message + ' ' + where;
    }
  
  
    function YAMLException$1(reason, mark) {
      // Super constructor
      Error.call(this);
  
      this.name = 'YAMLException';
      this.reason = reason;
      this.mark = mark;
      this.message = formatError(this, false);
  
      // Include stack trace in error object
      if (Error.captureStackTrace) {
        // Chrome and NodeJS
        Error.captureStackTrace(this, this.constructor);
      } else {
        // FF, IE 10+ and Safari 6+. Fallback for others
        this.stack = (new Error()).stack || '';
      }
    }
  
  
    // Inherit from Error
    YAMLException$1.prototype = Object.create(Error.prototype);
    YAMLException$1.prototype.constructor = YAMLException$1;
  
  
    YAMLException$1.prototype.toString = function toString(compact) {
      return this.name + ': ' + formatError(this, compact);
    };
  
  
    var exception = YAMLException$1;
  
    // get snippet for a single line, respecting maxLength
    function getLine(buffer, lineStart, lineEnd, position, maxLineLength) {
      var head = '';
      var tail = '';
      var maxHalfLength = Math.floor(maxLineLength / 2) - 1;
  
      if (position - lineStart > maxHalfLength) {
        head = ' ... ';
        lineStart = position - maxHalfLength + head.length;
      }
  
      if (lineEnd - position > maxHalfLength) {
        tail = ' ...';
        lineEnd = position + maxHalfLength - tail.length;
      }
  
      return {
        str: head + buffer.slice(lineStart, lineEnd).replace(/\t/g, '→') + tail,
        pos: position - lineStart + head.length // relative position
      };
    }
  
  
    function padStart(string, max) {
      return common.repeat(' ', max - string.length) + string;
    }
  
  
    function makeSnippet(mark, options) {
      options = Object.create(options || null);
  
      if (!mark.buffer) return null;
  
      if (!options.maxLength) options.maxLength = 79;
      if (typeof options.indent      !== 'number') options.indent      = 1;
      if (typeof options.linesBefore !== 'number') options.linesBefore = 3;
      if (typeof options.linesAfter  !== 'number') options.linesAfter  = 2;
  
      var re = /\r?\n|\r|\0/g;
      var lineStarts = [ 0 ];
      var lineEnds = [];
      var match;
      var foundLineNo = -1;
  
      while ((match = re.exec(mark.buffer))) {
        lineEnds.push(match.index);
        lineStarts.push(match.index + match[0].length);
  
        if (mark.position <= match.index && foundLineNo < 0) {
          foundLineNo = lineStarts.length - 2;
        }
      }
  
      if (foundLineNo < 0) foundLineNo = lineStarts.length - 1;
  
      var result = '', i, line;
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          maxLineLength
        );
        result = common.repeat(' ', options.indent) + padStart((mark.line - i + 1).toString(), lineNoLength) +
          ' | ' + line.str + '\n' + result;
      }
  
      line = getLine(mark.buffer, lineStarts[foundLineNo], lineEnds[foundLineNo], mark.position, maxLineLength);
      result += common.repeat(' ', options.indent) + padStart((mark.line + 1).toString(), lineNoLength) +
        ' | ' + line.str + '\n';
      result += common.repeat('-', options.indent + lineNoLength + 3 + line.pos) + '^' + '\n';
  
      for (i = 1; i <= options.linesAfter; i++) {
        if (foundLineNo + i >= lineEnds.length) break;
        line = getLine(
          mark.buffer,
          lineStarts[foundLineNo + i],
          lineEnds[foundLineNo + i],
          mark.position - (lineStarts[foundLineNo] - lineStarts[foundLineNo + i]),
          maxLineLength
        );
        result += common.repeat(' ', options.indent) + padStart((mark.line + i + 1).toString(), lineNoLength) +
          ' | ' + line.str + '\n';
      }
  
      return result.replace(/\n$/, '');
    }
  
  
    var snippet = makeSnippet;
  
    var TYPE_CONSTRUCTOR_OPTIONS = [
      'kind',
      'multi',
      'resolve',
      'construct',
      'instanceOf',
      'predicate',
      'represent',
      'representName',
      'defaultStyle',
      'styleAliases'
    ];
  
    var YAML_NODE_KINDS = [
      'scalar',
      'sequence',
      'mapping'
    ];
  
    function compileStyleAliases(map) {
      var result = {};
  
      if (map !== null) {
        Object.keys(map).forEach(function (style) {
          map[style].forEach(function (alias) {
            result[String(alias)] = style;
          });
        });
      }
  
      return result;
    }
  
    function Type$1(tag, options) {
      options = options || {};
  
      Object.keys(options).forEach(function (name) {
        if (TYPE_CONSTRUCTOR_OPTIONS.indexOf(name) === -1) {
          throw new exception('Unknown option "' + name + '" is met in definition of "' + tag + '" YAML type.');
        }
      });
  
      // TODO: Add tag format check.
      this.options       = options; // keep original options in case user wants to extend this type later
      this.tag           = tag;
      this.kind          = options['kind']          || null;
      this.resolve       = options['resolve']       || function () { return true; };
      this.construct     = options['construct']     || function (data) { return data; };
      this.instanceOf    = options['instanceOf']    || null;
      this.predicate     = options['predicate']     || null;
      this.represent     = options['represent']     || null;
      this.representName = options['representName'] || null;
      this.defaultStyle  = options['defaultStyle']  || null;
      this.multi         = options['multi']         || false;
      this.styleAliases  = compileStyleAliases(options['styleAliases'] || null);
  
      if (YAML_NODE_KINDS.indexOf(this.kind) === -1) {
        throw new exception('Unknown kind "' + this.kind + '" is specified for "' + tag + '" YAML type.');
      }
    }
  
    var type = Type$1;
  
    /*eslint-disable max-len*/
  
  
  
  
  
    function compileList(schema, name) {
      var result = [];
  
      schema[name].forEach(function (currentType) {
        var newIndex = result.length;
  
        result.forEach(function (previousType, previousIndex) {
          if (previousType.tag === currentType.tag &&
              previousType.kind === currentType.kind &&
              previousType.multi === currentType.multi) {
  
            newIndex = previousIndex;
          }
        });
  
        result[newIndex] = currentType;
      });
  
      return result;
    }
  
  
    function compileMap(/* lists... */) {
      var result = {
            scalar: {},
            sequence: {},
            mapping: {},
            fallback: {},
            multi: {
              scalar: [],
              sequence: [],
              mapping: [],
              fallback: []
            }
          }, index, length;
  
      function collectType(type) {
        if (type.multi) {
          result.multi[type.kind].push(type);
          result.multi['fallback'].push(type);
        } else {
          result[type.kind][type.tag] = result['fallback'][type.tag] = type;
        }
      }
  
      for (index = 0, length = arguments.length; index < length; index += 1) {
        arguments[index].forEach(collectType);
      }
      return result;
    }
  
  
    function Schema$1(definition) {
      return this.extend(definition);
    }
  
  
    Schema$1.prototype.extend = function extend(definition) {
      var implicit = [];
      var explicit = [];
  
      if (definition instanceof type) {
        // Schema.extend(type)
        explicit.push(definition);
  
      } else if (Array.isArray(definition)) {
        // Schema.extend([ type1, type2, ... ])
        explicit = explicit.concat(definition);
  
      } else if (definition && (Array.isArray(definition.implicit) || Array.isArray(definition.explicit))) {
        // Schema.extend({ explicit: [ type1, type2, ... ], implicit: [ type1, type2, ... ] })
        if (definition.implicit) implicit = implicit.concat(definition.implicit);
        if (definition.explicit) explicit = explicit.concat(definition.explicit);
  
      } else {
        throw new exception('Schema.extend argument should be a Type, [ Type ], ' +
          'or a schema definition ({ implicit: [...], explicit: [...] })');
      }
  
      implicit.forEach(function (type$1) {
        if (!(type$1 instanceof type)) {
          throw new exception('Specified list of YAML types (or a single Type object) contains a non-Type object.');
        }
  
        if (type$1.loadKind && type$1.loadKind !== 'scalar') {
          throw new exception('There is a non-scalar type in the implicit list of a schema. Implicit resolving of such types is not supported.');
        }
  
        if (type$1.multi) {
          throw new exception('There is a multi type in the implicit list of a schema. Multi tags can only be listed as explicit.');
        }
      });
  
      explicit.forEach(function (type$1) {
        if (!(type$1 instanceof type)) {
          throw new exception('Specified list of YAML types (or a single Type object) contains a non-Type object.');
        }
      });
  
      var result = Object.create(Schema$1.prototype);
  
      result.implicit = (this.implicit || []).concat(implicit);
      result.explicit = (this.explicit || []).concat(explicit);
  
      result.compiledImplicit = compileList(result, 'implicit');
      result.compiledExplicit = compileList(result, 'explicit');
      result.compiledTypeMap  = compileMap(result.compiledImplicit, result.compiledExplicit);
  
      return result;
    };
  
  
    var schema = Schema$1;
  
    var str = new type('tag:yaml.org,2002:str', {
      kind: 'scalar',
      construct: function (data) { return data !== null ? data : ''; }
    });
  
    var seq = new type('tag:yaml.org,2002:seq', {
      kind: 'sequence',
      construct: function (data) { return data !== null ? data : []; }
    });
  
    var map = new type('tag:yaml.org,2002:map', {
      kind: 'mapping',
      construct: function (data) { return data !== null ? data : {}; }
    });
  
    var failsafe = new schema({
      explicit: [
        str,
        seq,
        map
      ]
    });
  
    function resolveYamlNull(data) {
      if (data === null) return true;
  
      var max = data.length;
  
      return (max === 1 && data === '~') ||
             (max === 4 && (data === 'null' || data === 'Null' || data === 'NULL'));
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    function constructYamlNull() {
      return null;
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    function isNull(object) {
      return object === null;
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    var _null = new type('tag:yaml.org,2002:null', {
      kind: 'scalar',
      resolve: resolveYamlNull,
      construct: constructYamlNull,
      predicate: isNull,
      represent: {
        canonical: function () { return '~';    },
        lowercase: function () { return 'null'; },
        uppercase: function () { return 'NULL'; },
        camelcase: function () { return 'Null'; },
        empty:     function () { return '';     }
      },
      defaultStyle: 'lowercase'
    });
  
    function resolveYamlBoolean(data) {
      if (data === null) return false;
  
      var max = data.length;
  
      return (max === 4 && (data === 'true' || data === 'True' || data === 'TRUE')) ||
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    function constructYamlBoolean(data) {
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             data === 'True' ||
             data === 'TRUE';
    }
  
    function isBoolean(object) {
      return Object.prototype.toString.call(object) === '[object Boolean]';
    }
  
    var bool = new type('tag:yaml.org,2002:bool', {
      kind: 'scalar',
      resolve: resolveYamlBoolean,
      construct: constructYamlBoolean,
      predicate: isBoolean,
      represent: {
        lowercase: function (object) { return object ? 'true' : 'false'; },
        uppercase: function (object) { return object ? 'TRUE' : 'FALSE'; },
        camelcase: function (object) { return object ? 'True' : 'False'; }
      },
      defaultStyle: 'lowercase'
    });
  
    function isHexCode(c) {
      return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) ||
             ((0x41/* A */ <= c) && (c <= 0x46/* F */)) ||
             ((0x61/* a */ <= c) && (c <= 0x66/* f */));
    }
  
    function isOctCode(c) {
      return ((0x30/* 0 */ <= c) && (c <= 0x37/* 7 */));
    }
  
    function isDecCode(c) {
      return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */));
    }
  
    function resolveYamlInteger(data) {
      if (data === null) return false;
  
      var max = data.length,
          index = 0,
          hasDigits = false,
          ch;
  
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        if (ch === 'x') {
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          for (; index < max; index++) {
            ch = data[index];
            if (ch === '_') continue;
            if (!isHexCode(data.charCodeAt(index))) return false;
            hasDigits = true;
          }
          return hasDigits && ch !== '_';
        }
  
  
        if (ch === 'o') {
          // base 8
          index++;
  
          for (; index < max; index++) {
            ch = data[index];
            if (ch === '_') continue;
            if (!isOctCode(data.charCodeAt(index))) return false;
            hasDigits = true;
          }
          return hasDigits && ch !== '_';
        }
      }
  
      // base 10 (except 0)
  
      // value should not start with `_`;
      if (ch === '_') return false;
  
      for (; index < max; index++) {
        ch = data[index];
        if (ch === '_') continue;
        if (!isDecCode(data.charCodeAt(index))) {
          return false;
        }
        hasDigits = true;
      }
  
      // Should have digits and should not end with `_`
      if (!hasDigits || ch === '_') return false;
  
      return true;
    }
  
    function constructYamlInteger(data) {
      var value = data, sign = 1, ch;
  
      if (value.indexOf('_') !== -1) {
        value = value.replace(/_/g, '');
      }
  
      ch = value[0];
  
      if (ch === '-' || ch === '+') {
        if (ch === '-') sign = -1;
        value = value.slice(1);
        ch = value[0];
      }
  
      if (value === '0') return 0;
  
      if (ch === '0') {
        if (value[1] === 'b') return sign * parseInt(value.slice(2), 2);
        if (value[1] === 'x') return sign * parseInt(value.slice(2), 16);
        if (value[1] === 'o') return sign * parseInt(value.slice(2), 8);
      }
  
      return sign * parseInt(value, 10);
    }
  
    function isInteger(object) {
      return (Object.prototype.toString.call(object)) === '[object Number]' &&
             (object % 1 === 0 && !common.isNegativeZero(object));
    }
  
    var int = new type('tag:yaml.org,2002:int', {
      kind: 'scalar',
      resolve: resolveYamlInteger,
      construct: constructYamlInteger,
      predicate: isInteger,
      represent: {
        binary:      function (obj) { return obj >= 0 ? '0b' + obj.toString(2) : '-0b' + obj.toString(2).slice(1); },
        octal:       function (obj) { return obj >= 0 ? '0o'  + obj.toString(8) : '-0o'  + obj.toString(8).slice(1); },
        decimal:     function (obj) { return obj.toString(10); },
        /* eslint-disable max-len */
        hexadecimal: function (obj) { return obj >= 0 ? '0x' + obj.toString(16).toUpperCase() :  '-0x' + obj.toString(16).toUpperCase().slice(1); }
      },
      defaultStyle: 'decimal',
      styleAliases: {
        binary:      [ 2,  'bin' ],
        octal:       [ 8,  'oct' ],
        decimal:     [ 10, 'dec' ],
        hexadecimal: [ 16, 'hex' ]
      }
    });
  
    var YAML_FLOAT_PATTERN = new RegExp(
      // 2.5e4, 2.5 and integers
      '^(?:[-+]?(?:[0-9][0-9_]*)(?:\\.[0-9_]*)?(?:[eE][-+]?[0-9]+)?' +
      // .2e4, .2
      // special case, seems not from spec
      '|\\.[0-9_]+(?:[eE][-+]?[0-9]+)?' +
      // .inf
      '|[-+]?\\.(?:inf|Inf|INF)' +
      // .nan
      '|\\.(?:nan|NaN|NAN))$');
  
    function resolveYamlFloat(data) {
      if (data === null) return false;
  
      if (!YAML_FLOAT_PATTERN.test(data) ||
          // Quick hack to not allow integers end with `_`
          // Probably should update regexp & check speed
          data[data.length - 1] === '_') {
        return false;
      }
  
      return true;
    }
  
    function constructYamlFloat(data) {
      var value, sign;
  
      value  = data.replace(/_/g, '').toLowerCase();
      sign   = value[0] === '-' ? -1 : 1;
  
      if ('+-'.indexOf(value[0]) >= 0) {
        value = value.slice(1);
      }
  
      if (value === '.inf') {
        return (sign === 1) ? Number.POSITIVE_INFINITY : Number.NEGATIVE_INFINITY;
  
      } else if (value === '.nan') {
        return NaN;
      }
      return sign * parseFloat(value, 10);
    }
  
  
    var SCIENTIFIC_WITHOUT_DOT = /^[-+]?[0-9]+e/;
  
    function representYamlFloat(object, style) {
      var res;
  
      if (isNaN(object)) {
        switch (style) {
          case 'lowercase': return '.nan';
          case 'uppercase': return '.NAN';
          case 'camelcase': return '.NaN';
        }
      } else if (Number.POSITIVE_INFINITY === object) {
        switch (style) {
          case 'lowercase': return '.inf';
          case 'uppercase': return '.INF';
          case 'camelcase': return '.Inf';
        }
      } else if (Number.NEGATIVE_INFINITY === object) {
        switch (style) {
          case 'lowercase': return '-.inf';
          case 'uppercase': return '-.INF';
          case 'camelcase': return '-.Inf';
        }
      } else if (common.isNegativeZero(object)) {
        return '-0.0';
      }
  
      res = object.toString(10);
  
      // JS stringifier can build scientific format without dots: 5e-100,
      // while YAML requres dot: 5.e-100. Fix it with simple hack
  
      return SCIENTIFIC_WITHOUT_DOT.test(res) ? res.replace('e', '.e') : res;
    }
  
    function isFloat(object) {
      return (Object.prototype.toString.call(object) === '[object Number]') &&
             (object % 1 !== 0 || common.isNegativeZero(object));
    }
  
    var float = new type('tag:yaml.org,2002:float', {
      kind: 'scalar',
      resolve: resolveYamlFloat,
      construct: constructYamlFloat,
      predicate: isFloat,
      represent: representYamlFloat,
      defaultStyle: 'lowercase'
    });
  
    var json = failsafe.extend({
      implicit: [
        _null,
        bool,
        int,
        float
      ]
    });
  
    var core = json;
  
    var YAML_DATE_REGEXP = new RegExp(
      '^([0-9][0-9][0-9][0-9])'          + // [1] year
      '-([0-9][0-9])'                    + // [2] month
      '-([0-9][0-9])$');                   // [3] day
  
    var YAML_TIMESTAMP_REGEXP = new RegExp(
      '^([0-9][0-9][0-9][0-9])'          + // [1] year
      '-([0-9][0-9]?)'                   + // [2] month
      '-([0-9][0-9]?)'                   + // [3] day
      '(?:[Tt]|[ \\t]+)'                 + // ...
      '([0-9][0-9]?)'                    + // [4] hour
      ':([0-9][0-9])'                    + // [5] minute
      ':([0-9][0-9])'                    + // [6] second
      '(?:\\.([0-9]*))?'                 + // [7] fraction
      '(?:[ \\t]*(Z|([-+])([0-9][0-9]?)' + // [8] tz [9] tz_sign [10] tz_hour
      '(?::([0-9][0-9]))?))?$');           // [11] tz_minute
  
    function resolveYamlTimestamp(data) {
      if (data === null) return false;
      if (YAML_DATE_REGEXP.exec(data) !== null) return true;
      if (YAML_TIMESTAMP_REGEXP.exec(data) !== null) return true;
      return false;
    }
  
    function constructYamlTimestamp(data) {
      var match, year, month, day, hour, minute, second, fraction = 0,
          delta = null, tz_hour, tz_minute, date;
  
      match = YAML_DATE_REGEXP.exec(data);
      if (match === null) match = YAML_TIMESTAMP_REGEXP.exec(data);
  
      if (match === null) throw new Error('Date resolve error');
  
      // match: [1] year [2] month [3] day
  
      year = +(match[1]);
      month = +(match[2]) - 1; // JS month starts with 0
      day = +(match[3]);
  
      if (!match[4]) { // no hour
        return new Date(Date.UTC(year, month, day));
      }
  
      // match: [4] hour [5] minute [6] second [7] fraction
  
      hour = +(match[4]);
      minute = +(match[5]);
      second = +(match[6]);
  
      if (match[7]) {
        fraction = match[7].slice(0, 3);
        while (fraction.length < 3) { // milli-seconds
          fraction += '0';
        }
        fraction = +fraction;
      }
  
      // match: [8] tz [9] tz_sign [10] tz_hour [11] tz_minute
  
      if (match[9]) {
        tz_hour = +(match[10]);
        tz_minute = +(match[11] || 0);
        delta = (tz_hour * 60 + tz_minute) * 60000; // delta in mili-seconds
        if (match[9] === '-') delta = -delta;
      }
  
      date = new Date(Date.UTC(year, month, day, hour, minute, second, fraction));
  
      if (delta) date.setTime(date.getTime() - delta);
  
      return date;
    }
  
    function representYamlTimestamp(object /*, style*/) {
      return object.toISOString();
    }
  
    var timestamp = new type('tag:yaml.org,2002:timestamp', {
      kind: 'scalar',
      resolve: resolveYamlTimestamp,
      construct: constructYamlTimestamp,
      instanceOf: Date,
      represent: representYamlTimestamp
    });
  
    function resolveYamlMerge(data) {
      return data === '<<' || data === null;
    }
  
    var merge = new type('tag:yaml.org,2002:merge', {
      kind: 'scalar',
      resolve: resolveYamlMerge
    });
  
    /*eslint-disable no-bitwise*/
  
  
  
  
  
    // [ 64, 65, 66 ] -> [ padding, CR, LF ]
    var BASE64_MAP = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\n\r';
  
  
    function resolveYamlBinary(data) {
      if (data === null) return false;
  
      var code, idx, bitlen = 0, max = data.length, map = BASE64_MAP;
  
      // Convert one by one.
      for (idx = 0; idx < max; idx++) {
        code = map.indexOf(data.charAt(idx));
  
        // Skip CR/LF
        if (code > 64) continue;
  
        // Fail on illegal characters
        if (code < 0) return false;
  
        bitlen += 6;
      }
  
      // If there are any bits left, source was corrupted
      return (bitlen % 8) === 0;
    }
  
    function constructYamlBinary(data) {
      var idx, tailbits,
          input = data.replace(/[\r\n=]/g, ''), // remove CR/LF & padding to simplify scan
          max = input.length,
          map = BASE64_MAP,
          bits = 0,
          result = [];
  
      // Collect by 6*4 bits (3 bytes)
  
      for (idx = 0; idx < max; idx++) {
        if ((idx % 4 === 0) && idx) {
          result.push((bits >> 16) & 0xFF);
          result.push((bits >> 8) & 0xFF);
          result.push(bits & 0xFF);
        }
  
        bits = (bits << 6) | map.indexOf(input.charAt(idx));
      }
  
      // Dump tail
  
      tailbits = (max % 4) * 6;
  
      if (tailbits === 0) {
        result.push((bits >> 16) & 0xFF);
        result.push((bits >> 8) & 0xFF);
        result.push(bits & 0xFF);
      } else if (tailbits === 18) {
        result.push((bits >> 10) & 0xFF);
        result.push((bits >> 2) & 0xFF);
      } else if (tailbits === 12) {
        result.push((bits >> 4) & 0xFF);
      }
  
      return new Uint8Array(result);
    }
  
    function representYamlBinary(object /*, style*/) {
      var result = '', bits = 0, idx, tail,
          max = object.length,
          map = BASE64_MAP;
  
      // Convert every three bytes to 4 ASCII characters.
  
      for (idx = 0; idx < max; idx++) {
        if ((idx % 3 === 0) && idx) {
          result += map[(bits >> 18) & 0x3F];
          result += map[(bits >> 12) & 0x3F];
          result += map[(bits >> 6) & 0x3F];
          result += map[bits & 0x3F];
        }
  
        bits = (bits << 8) + object[idx];
      }
  
      // Dump tail
  
      tail = max % 3;
  
      if (tail === 0) {
        result += map[(bits >> 18) & 0x3F];
        result += map[(bits >> 12) & 0x3F];
        result += map[(bits >> 6) & 0x3F];
        result += map[bits & 0x3F];
      } else if (tail === 2) {
        result += map[(bits >> 10) & 0x3F];
        result += map[(bits >> 4) & 0x3F];
        result += map[(bits << 2) & 0x3F];
        result += map[64];
      } else if (tail === 1) {
        result += map[(bits >> 2) & 0x3F];
        result += map[(bits << 4) & 0x3F];
        result += map[64];
        result += map[64];
      }
  
      return result;
    }
  
    function isBinary(obj) {
      return Object.prototype.toString.call(obj) ===  '[object Uint8Array]';
    }
  
    var binary = new type('tag:yaml.org,2002:binary', {
      kind: 'scalar',
      resolve: resolveYamlBinary,
      construct: constructYamlBinary,
      predicate: isBinary,
      represent: representYamlBinary
    });
  
    var _hasOwnProperty$3 = Object.prototype.hasOwnProperty;
    var _toString$2       = Object.prototype.toString;
  
    function resolveYamlOmap(data) {
      if (data === null) return true;
  
      var objectKeys = [], index, length, pair, pairKey, pairHasKey,
          object = data;
  
      for (index = 0, length = object.length; index < length; index += 1) {
        pair = object[index];
        pairHasKey = false;
  
        if (_toString$2.call(pair) !== '[object Object]') return false;
  
        for (pairKey in pair) {
          if (_hasOwnProperty$3.call(pair, pairKey)) {
            if (!pairHasKey) pairHasKey = true;
            else return false;
          }
        }
  
        if (!pairHasKey) return false;
  
        if (objectKeys.indexOf(pairKey) === -1) objectKeys.push(pairKey);
        else return false;
      }
  
      return true;
    }
  
    function constructYamlOmap(data) {
      return data !== null ? data : [];
    }
  
    var omap = new type('tag:yaml.org,2002:omap', {
      kind: 'sequence',
      resolve: resolveYamlOmap,
      construct: constructYamlOmap
    });
  
    var _toString$1 = Object.prototype.toString;
  
    function resolveYamlPairs(data) {
      if (data === null) return true;
  
      var index, length, pair, keys, result,
          object = data;
  
      result = new Array(object.length);
  
      for (index = 0, length = object.length; index < length; index += 1) {
        pair = object[index];
  
        if (_toString$1.call(pair) !== '[object Object]') return false;
  
        keys = Object.keys(pair);
  
        if (keys.length !== 1) return false;
  
        result[index] = [ keys[0], pair[keys[0]] ];
      }
  
      return true;
    }
  
    function constructYamlPairs(data) {
      if (data === null) return [];
  
      var index, length, pair, keys, result,
          object = data;
  
      result = new Array(object.length);
  
      for (index = 0, length = object.length; index < length; index += 1) {
        pair = object[index];
  
        keys = Object.keys(pair);
  
        result[index] = [ keys[0], pair[keys[0]] ];
      }
  
      return result;
    }
  
    var pairs = new type('tag:yaml.org,2002:pairs', {
      kind: 'sequence',
      resolve: resolveYamlPairs,
      construct: constructYamlPairs
    });
  
    var _hasOwnProperty$2 = Object.prototype.hasOwnProperty;
  
    function resolveYamlSet(data) {
      if (data === null) return true;
  
      var key, object = data;
  
      for (key in object) {
        if (_hasOwnProperty$2.call(object, key)) {
          if (object[key] !== null) return false;
        }
      }
  
      return true;
    }
  
    function constructYamlSet(data) {
      return data !== null ? data : {};
    }
  
    var set = new type('tag:yaml.org,2002:set', {
      kind: 'mapping',
      resolve: resolveYamlSet,
      construct: constructYamlSet
    });
  
    var _default = core.extend({
      implicit: [
        timestamp,
        merge
      ],
      explicit: [
        binary,
        omap,
        pairs,
        set
      ]
    });
  
    /*eslint-disable max-len,no-use-before-define*/
  
  
  
  
  
  
  
    var _hasOwnProperty$1 = Object.prototype.hasOwnProperty;
  
  
    var CONTEXT_FLOW_IN   = 1;
    var CONTEXT_FLOW_OUT  = 2;
    var CONTEXT_BLOCK_IN  = 3;
    var CONTEXT_BLOCK_OUT = 4;
  
  
    var CHOMPING_CLIP  = 1;
    var CHOMPING_STRIP = 2;
    var CHOMPING_KEEP  = 3;
  
  
    var PATTERN_NON_PRINTABLE         = /[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x84\x86-\x9F\uFFFE\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
    var PATTERN_NON_ASCII_LINE_BREAKS = /[\x85\u2028\u2029]/;
    var PATTERN_FLOW_INDICATORS       = /[,\[\]\{\}]/;
    var PATTERN_TAG_HANDLE            = /^(?:!|!!|![a-z\-]+!)$/i;
    var PATTERN_TAG_URI               = /^(?:!|[^,\[\]\{\}])(?:%[0-9a-f]{2}|[0-9a-z\-#;\/\?:@&=\+\$,_\.!~\*'\(\)\[\]])*$/i;
  
  
    function _class(obj) { return Object.prototype.toString.call(obj); }
  
    function is_EOL(c) {
      return (c === 0x0A/* LF */) || (c === 0x0D/* CR */);
    }
  
    function is_WHITE_SPACE(c) {
      return (c === 0x09/* Tab */) || (c === 0x20/* Space */);
    }
  
    function is_WS_OR_EOL(c) {
      return (c === 0x09/* Tab */) ||
             (c === 0x20/* Space */) ||
             (c === 0x0A/* LF */) ||
             (c === 0x0D/* CR */);
    }
  
    function is_FLOW_INDICATOR(c) {
      return c === 0x2C/* , */ ||
             c === 0x5B/* [ */ ||
             c === 0x5D/* ] */ ||
             c === 0x7B/* { */ ||
             c === 0x7D/* } */;
    }
  
    function fromHexCode(c) {
      var lc;
  
      if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
        return c - 0x30;
      }
  
      /*eslint-disable no-bitwise*/
      lc = c | 0x20;
  
      if ((0x61/* a */ <= lc) && (lc <= 0x66/* f */)) {
        return lc - 0x61 + 10;
      }
  
      return -1;
    }
  
    function escapedHexLen(c) {
      if (c === 0x78/* x */) { return 2; }
      if (c === 0x75/* u */) { return 4; }
      if (c === 0x55/* U */) { return 8; }
      return 0;
    }
  
    function fromDecimalCode(c) {
      if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
        return c - 0x30;
      }
  
      return -1;
    }
  
    function simpleEscapeSequence(c) {
      /* eslint-disable indent */
      return (c === 0x30/* 0 */) ? '\x00' :
            (c === 0x61/* a */) ? '\x07' :
            (c === 0x62/* b */) ? '\x08' :
            (c === 0x74/* t */) ? '\x09' :
            (c === 0x09/* Tab */) ? '\x09' :
            (c === 0x6E/* n */) ? '\x0A' :
            (c === 0x76/* v */) ? '\x0B' :
            (c === 0x66/* f */) ? '\x0C' :
            (c === 0x72/* r */) ? '\x0D' :
            (c === 0x65/* e */) ? '\x1B' :
            (c === 0x20/* Space */) ? ' ' :
            (c === 0x22/* " */) ? '\x22' :
            (c === 0x2F/* / */) ? '/' :
            (c === 0x5C/* \ */) ? '\x5C' :
            (c === 0x4E/* N */) ? '\x85' :
            (c === 0x5F/* _ */) ? '\xA0' :
            (c === 0x4C/* L */) ? '\u2028' :
            (c === 0x50/* P */) ? '\u2029' : '';
    }
  
    function charFromCodepoint(c) {
      if (c <= 0xFFFF) {
        return String.fromCharCode(c);
      }
      // Encode UTF-16 surrogate pair
      // https://en.wikipedia.org/wiki/UTF-16#Code_points_U.2B010000_to_U.2B10FFFF
      return String.fromCharCode(
        ((c - 0x010000) >> 10) + 0xD800,
        ((c - 0x010000) & 0x03FF) + 0xDC00
      );
    }
  
    var simpleEscapeCheck = new Array(256); // integer, for fast access
    var simpleEscapeMap = new Array(256);
    for (var i = 0; i < 256; i++) {
      simpleEscapeCheck[i] = simpleEscapeSequence(i) ? 1 : 0;
      simpleEscapeMap[i] = simpleEscapeSequence(i);
    }
  
  
    function State$1(input, options) {
      this.input = input;
  
      this.filename  = options['filename']  || null;
      this.schema    = options['schema']    || _default;
      this.onWarning = options['onWarning'] || null;
      // (Hidden) Remove? makes the loader to expect YAML 1.1 documents
      // if such documents have no explicit %YAML directive
      this.legacy    = options['legacy']    || false;
  
      this.json      = options['json']      || false;
      this.listener  = options['listener']  || null;
  
      this.implicitTypes = this.schema.compiledImplicit;
      this.typeMap       = this.schema.compiledTypeMap;
  
      this.length     = input.length;
      this.position   = 0;
      this.line       = 0;
      this.lineStart  = 0;
      this.lineIndent = 0;
  
      // position of first leading tab in the current line,
      // used to make sure there are no tabs in the indentation
      this.firstTabInLine = -1;
  
      this.documents = [];
  
      /*
      this.version;
      this.checkLineBreaks;
      this.tagMap;
      this.anchorMap;
      this.tag;
      this.anchor;
      this.kind;
      this.result;*/
  
    }
  
  
    function generateError(state, message) {
      var mark = {
        name:     state.filename,
        buffer:   state.input.slice(0, -1), // omit trailing \0
        position: state.position,
        line:     state.line,
        column:   state.position - state.lineStart
      };
  
      mark.snippet = snippet(mark);
  
      return new exception(message, mark);
    }
  
    function throwError(state, message) {
      throw generateError(state, message);
    }
  
    function throwWarning(state, message) {
      if (state.onWarning) {
        state.onWarning.call(null, generateError(state, message));
      }
    }
  
  
    var directiveHandlers = {
  
      YAML: function handleYamlDirective(state, name, args) {
  
        var match, major, minor;
  
        if (state.version !== null) {
          throwError(state, 'duplication of %YAML directive');
        }
  
        if (args.length !== 1) {
          throwError(state, 'YAML directive accepts exactly one argument');
        }
  
        match = /^([0-9]+)\.([0-9]+)$/.exec(args[0]);
  
        if (match === null) {
          throwError(state, 'ill-formed argument of the YAML directive');
        }
  
        major = parseInt(match[1], 10);
        minor = parseInt(match[2], 10);
  
        if (major !== 1) {
          throwError(state, 'unacceptable YAML version of the document');
        }
  
        state.version = args[0];
        state.checkLineBreaks = (minor < 2);
  
        if (minor !== 1 && minor !== 2) {
          throwWarning(state, 'unsupported YAML version of the document');
        }
      },
  
      TAG: function handleTagDirective(state, name, args) {
  
        var handle, prefix;
  
        if (args.length !== 2) {
          throwError(state, 'TAG directive accepts exactly two arguments');
        }
  
        handle = args[0];
        prefix = args[1];
  
        if (!PATTERN_TAG_HANDLE.test(handle)) {
          throwError(state, 'ill-formed tag handle (first argument) of the TAG directive');
        }
  
        if (_hasOwnProperty$1.call(state.tagMap, handle)) {
          throwError(state, 'there is a previously declared suffix for "' + handle + '" tag handle');
        }
  
        if (!PATTERN_TAG_URI.test(prefix)) {
          throwError(state, 'ill-formed tag prefix (second argument) of the TAG directive');
        }
  
        try {
          prefix = decodeURIComponent(prefix);
        } catch (err) {
          throwError(state, 'tag prefix is malformed: ' + prefix);
        }
  
        state.tagMap[handle] = prefix;
      }
    };
  
  
    function captureSegment(state, start, end, checkJson) {
      var _position, _length, _character, _result;
  
      if (start < end) {
        _result = state.input.slice(start, end);
  
        if (checkJson) {
          for (_position = 0, _length = _result.length; _position < _length; _position += 1) {
            _character = _result.charCodeAt(_position);
            if (!(_character === 0x09 ||
                  (0x20 <= _character && _character <= 0x10FFFF))) {
              throwError(state, 'expected valid JSON character');
            }
          }
        } else if (PATTERN_NON_PRINTABLE.test(_result)) {
          throwError(state, 'the stream contains non-printable characters');
        }
  
        state.result += _result;
      }
    }
  
    function mergeMappings(state, destination, source, overridableKeys) {
      var sourceKeys, key, index, quantity;
  
      if (!common.isObject(source)) {
        throwError(state, 'cannot merge mappings; the provided source object is unacceptable');
      }
  
      sourceKeys = Object.keys(source);
  
      for (index = 0, quantity = sourceKeys.length; index < quantity; index += 1) {
        key = sourceKeys[index];
  
        if (!_hasOwnProperty$1.call(destination, key)) {
          destination[key] = source[key];
          overridableKeys[key] = true;
        }
      }
    }
  
    function storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode,
      startLine, startLineStart, startPos) {
  
      var index, quantity;
  
      // The output is a plain object here, so keys can only be strings.
      // We need to convert keyNode to a string, but doing so can hang the process
      // (deeply nested arrays that explode exponentially using aliases).
      if (Array.isArray(keyNode)) {
        keyNode = Array.prototype.slice.call(keyNode);
  
        for (index = 0, quantity = keyNode.length; index < quantity; index += 1) {
          if (Array.isArray(keyNode[index])) {
            throwError(state, 'nested arrays are not supported inside keys');
          }
  
          if (typeof keyNode === 'object' && _class(keyNode[index]) === '[object Object]') {
            keyNode[index] = '[object Object]';
          }
        }
      }
  
      // Avoid code execution in load() via toString property
      // (still use its own toString for arrays, timestamps,
      // and whatever user schema extensions happen to have @@toStringTag)
      if (typeof keyNode === 'object' && _class(keyNode) === '[object Object]') {
        keyNode = '[object Object]';
      }
  
  
      keyNode = String(keyNode);
  
      if (_result === null) {
        _result = {};
      }
  
      if (keyTag === 'tag:yaml.org,2002:merge') {
        if (Array.isArray(valueNode)) {
          for (index = 0, quantity = valueNode.length; index < quantity; index += 1) {
            mergeMappings(state, _result, valueNode[index], overridableKeys);
          }
        } else {
          mergeMappings(state, _result, valueNode, overridableKeys);
        }
      } else {
        if (!state.json &&
            !_hasOwnProperty$1.call(overridableKeys, keyNode) &&
            _hasOwnProperty$1.call(_result, keyNode)) {
          state.line = startLine || state.line;
          state.lineStart = startLineStart || state.lineStart;
          state.position = startPos || state.position;
          throwError(state, 'duplicated mapping key');
        }
  
        // used for this specific key only because Object.defineProperty is slow
        if (keyNode === '__proto__') {
          Object.defineProperty(_result, keyNode, {
            configurable: true,
            enumerable: true,
            writable: true,
            value: valueNode
          });
        } else {
          _result[keyNode] = valueNode;
        }
        delete overridableKeys[keyNode];
      }
  
      return _result;
    }
  
    function readLineBreak(state) {
      var ch;
  
      ch = state.input.charCodeAt(state.position);
  
      if (ch === 0x0A/* LF */) {
        state.position++;
      } else if (ch === 0x0D/* CR */) {
        state.position++;
        if (state.input.charCodeAt(state.position) === 0x0A/* LF */) {
          state.position++;
        }
      } else {
        throwError(state, 'a line break is expected');
      }
  
      state.line += 1;
      state.lineStart = state.position;
      state.firstTabInLine = -1;
    }
  
    function skipSeparationSpace(state, allowComments, checkIndent) {
      var lineBreaks = 0,
          ch = state.input.charCodeAt(state.position);
  
      while (ch !== 0) {
        while (is_WHITE_SPACE(ch)) {
          if (ch === 0x09/* Tab */ && state.firstTabInLine === -1) {
            state.firstTabInLine = state.position;
          }
          ch = state.input.charCodeAt(++state.position);
        }
  
        if (allowComments && ch === 0x23/* # */) {
          do {
            ch = state.input.charCodeAt(++state.position);
          } while (ch !== 0x0A/* LF */ && ch !== 0x0D/* CR */ && ch !== 0);
        }
  
        if (is_EOL(ch)) {
          readLineBreak(state);
  
          ch = state.input.charCodeAt(state.position);
          lineBreaks++;
          state.lineIndent = 0;
  
          while (ch === 0x20/* Space */) {
            state.lineIndent++;
            ch = state.input.charCodeAt(++state.position);
          }
        } else {
          break;
        }
      }
  
      if (checkIndent !== -1 && lineBreaks !== 0 && state.lineIndent < checkIndent) {
        throwWarning(state, 'deficient indentation');
      }
  
      return lineBreaks;
    }
  
    function testDocumentSeparator(state) {
      var _position = state.position,
          ch;
  
      ch = state.input.charCodeAt(_position);
  
      // Condition state.position === state.lineStart is tested
      // in parent on each call, for efficiency. No needs to test here again.
      if ((ch === 0x2D/* - */ || ch === 0x2E/* . */) &&
          ch === state.input.charCodeAt(_position + 1) &&
          ch === state.input.charCodeAt(_position + 2)) {
  
        _position += 3;
  
        ch = state.input.charCodeAt(_position);
  
        if (ch === 0 || is_WS_OR_EOL(ch)) {
          return true;
        }
      }
  
      return false;
    }
  
    function writeFoldedLines(state, count) {
      if (count === 1) {
        state.result += ' ';
      } else if (count > 1) {
        state.result += common.repeat('\n', count - 1);
      }
    }
  
  
    function readPlainScalar(state, nodeIndent, withinFlowCollection) {
      var preceding,
          following,
          captureStart,
          captureEnd,
          hasPendingContent,
          _line,
          _lineStart,
          _lineIndent,
          _kind = state.kind,
          _result = state.result,
          ch;
  
      ch = state.input.charCodeAt(state.position);
  
      if (is_WS_OR_EOL(ch)      ||
          is_FLOW_INDICATOR(ch) ||
          ch === 0x23/* # */    ||
          ch === 0x26/* & */    ||
          ch === 0x2A/* * */    ||
          ch === 0x21/* ! */    ||
          ch === 0x7C/* | */    ||
          ch === 0x3E/* > */    ||
          ch === 0x27/* ' */    ||
          ch === 0x22/* " */    ||
          ch === 0x25/* % */    ||
          ch === 0x40/* @ */    ||
          ch === 0x60/* ` */) {
        return false;
      }
  
      if (ch === 0x3F/* ? */ || ch === 0x2D/* - */) {
        following = state.input.charCodeAt(state.position + 1);
  
        if (is_WS_OR_EOL(following) ||
            withinFlowCollection && is_FLOW_INDICATOR(following)) {
          return false;
        }
      }
  
      state.kind = 'scalar';
      state.result = '';
      captureStart = captureEnd = state.position;
      hasPendingContent = false;
  
      while (ch !== 0) {
        if (ch === 0x3A/* : */) {
          following = state.input.charCodeAt(state.position + 1);
  
          if (is_WS_OR_EOL(following) ||
              withinFlowCollection && is_FLOW_INDICATOR(following)) {
            break;
          }
  
        } else if (ch === 0x23/* # */) {
          preceding = state.input.charCodeAt(state.position - 1);
  
          if (is_WS_OR_EOL(preceding)) {
            break;
          }
  
        } else if ((state.position === state.lineStart && testDocumentSeparator(state)) ||
                   withinFlowCollection && is_FLOW_INDICATOR(ch)) {
          break;
  
        } else if (is_EOL(ch)) {
          _line = state.line;
          _lineStart = state.lineStart;
          _lineIndent = state.lineIndent;
          skipSeparationSpace(state, false, -1);
  
          if (state.lineIndent >= nodeIndent) {
            hasPendingContent = true;
            ch = state.input.charCodeAt(state.position);
            continue;
          } else {
            state.position = captureEnd;
            state.line = _line;
            state.lineStart = _lineStart;
            state.lineIndent = _lineIndent;
            break;
          }
        }
  
        if (hasPendingContent) {
          captureSegment(state, captureStart, captureEnd, false);
          writeFoldedLines(state, state.line - _line);
          captureStart = captureEnd = state.position;
          hasPendingContent = false;
        }
  
        if (!is_WHITE_SPACE(ch)) {
          captureEnd = state.position + 1;
        }
  
        ch = state.input.charCodeAt(++state.position);
      }
  
      captureSegment(state, captureStart, captureEnd, false);
  
      if (state.result) {
        return true;
      }
  
      state.kind = _kind;
      state.result = _result;
      return false;
    }
  
    function readSingleQuotedScalar(state, nodeIndent) {
      var ch,
          captureStart, captureEnd;
  
      ch = state.input.charCodeAt(state.position);
  
      if (ch !== 0x27/* ' */) {
        return false;
      }
  
      state.kind = 'scalar';
      state.result = '';
      state.position++;
      captureStart = captureEnd = state.position;
  
      while ((ch = state.input.charCodeAt(state.position)) !== 0) {
        if (ch === 0x27/* ' */) {
          captureSegment(state, captureStart, state.position, true);
          ch = state.input.charCodeAt(++state.position);
  
          if (ch === 0x27/* ' */) {
            captureStart = state.position;
            state.position++;
            captureEnd = state.position;
          } else {
            return true;
          }
  
        } else if (is_EOL(ch)) {
          captureSegment(state, captureStart, captureEnd, true);
          writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
          captureStart = captureEnd = state.position;
  
        } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
          throwError(state, 'unexpected end of the document within a single quoted scalar');
  
        } else {
          state.position++;
          captureEnd = state.position;
        }
      }
  
      throwError(state, 'unexpected end of the stream within a single quoted scalar');
    }
  
    function readDoubleQuotedScalar(state, nodeIndent) {
      var captureStart,
          captureEnd,
          hexLength,
          hexResult,
          tmp,
          ch;
  
      ch = state.input.charCodeAt(state.position);
  
      if (ch !== 0x22/* " */) {
        return false;
      }
  
      state.kind = 'scalar';
      state.result = '';
      state.position++;
      captureStart = captureEnd = state.position;
  
      while ((ch = state.input.charCodeAt(state.position)) !== 0) {
        if (ch === 0x22/* " */) {
          captureSegment(state, captureStart, state.position, true);
          state.position++;
          return true;
  
        } else if (ch === 0x5C/* \ */) {
          captureSegment(state, captureStart, state.position, true);
          ch = state.input.charCodeAt(++state.position);
  
          if (is_EOL(ch)) {
            skipSeparationSpace(state, false, nodeIndent);
  
            // TODO: rework to inline fn with no type cast?
          } else if (ch < 256 && simpleEscapeCheck[ch]) {
            state.result += simpleEscapeMap[ch];
            state.position++;
  
          } else if ((tmp = escapedHexLen(ch)) > 0) {
            hexLength = tmp;
            hexResult = 0;
  
            for (; hexLength > 0; hexLength--) {
              ch = state.input.charCodeAt(++state.position);
  
              if ((tmp = fromHexCode(ch)) >= 0) {
                hexResult = (hexResult << 4) + tmp;
  
              } else {
                throwError(state, 'expected hexadecimal character');
              }
            }
  
            state.result += charFromCodepoint(hexResult);
  
            state.position++;
  
          } else {
            throwError(state, 'unknown escape sequence');
          }
  
          captureStart = captureEnd = state.position;
  
        } else if (is_EOL(ch)) {
          captureSegment(state, captureStart, captureEnd, true);
          writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
          captureStart = captureEnd = state.position;
  
        } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
          throwError(state, 'unexpected end of the document within a double quoted scalar');
  
        } else {
          state.position++;
          captureEnd = state.position;
        }
      }
  
      throwError(state, 'unexpected end of the stream within a double quoted scalar');
    }
  
    function readFlowCollection(state, nodeIndent) {
      var readNext = true,
          _line,
          _lineStart,
          _pos,
          _tag     = state.tag,
          _result,
          _anchor  = state.anchor,
          following,
          terminator,
          isPair,
          isExplicitPair,
          isMapping,
          overridableKeys = Object.create(null),
          keyNode,
          keyTag,
          valueNode,
          ch;
  
      ch = state.input.charCodeAt(state.position);
  
      if (ch === 0x5B/* [ */) {
        terminator = 0x5D;/* ] */
        isMapping = false;
        _result = [];
      } else if (ch === 0x7B/* { */) {
        terminator = 0x7D;/* } */
        isMapping = true;
        _result = {};
      } else {
        return false;
      }
  
      if (state.anchor !== null) {
        state.anchorMap[state.anchor] = _result;
      }
  
      ch = state.input.charCodeAt(++state.position);
  
      while (ch !== 0) {
        skipSeparationSpace(state, true, nodeIndent);
  
        ch = state.input.charCodeAt(state.position);
  
        if (ch === terminator) {
          state.position++;
          state.tag = _tag;
          state.anchor = _anchor;
          state.kind = isMapping ? 'mapping' : 'sequence';
          state.result = _result;
          return true;
        } else if (!readNext) {
          throwError(state, 'missed comma between flow collection entries');
        } else if (ch === 0x2C/* , */) {
          // "flow collection entries can never be completely empty", as per YAML 1.2, section 7.4
          throwError(state, "expected the node content, but found ','");
        }
  
        keyTag = keyNode = valueNode = null;
        isPair = isExplicitPair = false;
  
        if (ch === 0x3F/* ? */) {
          following = state.input.charCodeAt(state.position + 1);
  
          if (is_WS_OR_EOL(following)) {
            isPair = isExplicitPair = true;
            state.position++;
            skipSeparationSpace(state, true, nodeIndent);
          }
        }
  
        _line = state.line; // Save the current line.
        _lineStart = state.lineStart;
        _pos = state.position;
        composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
        keyTag = state.tag;
        keyNode = state.result;
        skipSeparationSpace(state, true, nodeIndent);
  
        ch = state.input.charCodeAt(state.position);
  
        if ((isExplicitPair || state.line === _line) && ch === 0x3A/* : */) {
          isPair = true;
          ch = state.input.charCodeAt(++state.position);
          skipSeparationSpace(state, true, nodeIndent);
          composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
          valueNode = state.result;
        }
  
        if (isMapping) {
          storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, _line, _lineStart, _pos);
        } else if (isPair) {
          _result.push(storeMappingPair(state, null, overridableKeys, keyTag, keyNode, valueNode, _line, _lineStart, _pos));
        } else {
          _result.push(keyNode);
        }
  
        skipSeparationSpace(state, true, nodeIndent);
  
        ch = state.input.charCodeAt(state.position);
  
        if (ch === 0x2C/* , */) {
          readNext = true;
          ch = state.input.charCodeAt(++state.position);
        } else {
          readNext = false;
        }
      }
  
      throwError(state, 'unexpected end of the stream within a flow collection');
    }
  
    function readBlockScalar(state, nodeIndent) {
      var captureStart,
          folding,
          chomping       = CHOMPING_CLIP,
          didReadContent = false,
          detectedIndent = false,
          textIndent     = nodeIndent,
          emptyLines     = 0,
          atMoreIndented = false,
          tmp,
          ch;
  
      ch = state.input.charCodeAt(state.position);
  
      if (ch === 0x7C/* | */) {
        folding = false;
      } else if (ch === 0x3E/* > */) {
        folding = true;
      } else {
        return false;
      }
  
      state.kind = 'scalar';
      state.result = '';
  
      while (ch !== 0) {
        ch = state.input.charCodeAt(++state.position);
  
        if (ch === 0x2B/* + */ || ch === 0x2D/* - */) {
          if (CHOMPING_CLIP === chomping) {
            chomping = (ch === 0x2B/* + */) ? CHOMPING_KEEP : CHOMPING_STRIP;
          } else {
            throwError(state, 'repeat of a chomping mode identifier');
          }
  
        } else if ((tmp = fromDecimalCode(ch)) >= 0) {
          if (tmp === 0) {
            throwError(state, 'bad explicit indentation width of a block scalar; it cannot be less than one');
          } else if (!detectedIndent) {
            textIndent = nodeIndent + tmp - 1;
            detectedIndent = true;
          } else {
            throwError(state, 'repeat of an indentation width identifier');
          }
  
        } else {
          break;
        }
      }
  
      if (is_WHITE_SPACE(ch)) {
        do { ch = state.input.charCodeAt(++state.position); }
        while (is_WHITE_SPACE(ch));
  
        if (ch === 0x23/* # */) {
          do { ch = state.input.charCodeAt(++state.position); }
          while (!is_EOL(ch) && (ch !== 0));
        }
      }
  
      while (ch !== 0) {
        readLineBreak(state);
        state.lineIndent = 0;
  
        ch = state.input.charCodeAt(state.position);
  
        while ((!detectedIndent || state.lineIndent < textIndent) &&
               (ch === 0x20/* Space */)) {
          state.lineIndent++;
          ch = state.input.charCodeAt(++state.position);
        }
  
        if (!detectedIndent && state.lineIndent > textIndent) {
          textIndent = state.lineIndent;
        }
  
        if (is_EOL(ch)) {
          emptyLines++;
          continue;
        }
  
        // End of the scalar.
        if (state.lineIndent < textIndent) {
  
          // Perform the chomping.
          if (chomping === CHOMPING_KEEP) {
            state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
          } else if (chomping === CHOMPING_CLIP) {
            if (didReadContent) { // i.e. only if the scalar is not empty.
              state.result += '\n';
            }
          }
  
          // Break this `while` cycle and go to the funciton's epilogue.
          break;
        }
  
        // Folded style: use fancy rules to handle line breaks.
        if (folding) {
  
          // Lines starting with white space characters (more-indented lines) are not folded.
          if (is_WHITE_SPACE(ch)) {
            atMoreIndented = true;
            // except for the first content line (cf. Example 8.1)
            state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
  
          // End of more-indented block.
          } else if (atMoreIndented) {
            atMoreIndented = false;
            state.result += common.repeat('\n', emptyLines + 1);
  
          // Just one line break - perceive as the same line.
          } else if (emptyLines === 0) {
            if (didReadContent) { // i.e. only if we have already read some scalar content.
              state.result += ' ';
            }
  
          // Several line breaks - perceive as different lines.
          } else {
            state.result += common.repeat('\n', emptyLines);
          }
  
        // Literal style: just add exact number of line breaks between content lines.
        } else {
          // Keep all line breaks except the header line break.
          state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
        }
  
        didReadContent = true;
        detectedIndent = true;
        emptyLines = 0;
        captureStart = state.position;
  
        while (!is_EOL(ch) && (ch !== 0)) {
          ch = state.input.charCodeAt(++state.position);
        }
  
        captureSegment(state, captureStart, state.position, false);
      }
  
      return true;
    }
  
    function readBlockSequence(state, nodeIndent) {
      var _line,
          _tag      = state.tag,
          _anchor   = state.anchor,
          _result   = [],
          following,
          detected  = false,
          ch;
  
      // there is a leading tab before this token, so it can't be a block sequence/mapping;
      // it can still be flow sequence/mapping or a scalar
      if (state.firstTabInLine !== -1) return false;
  
      if (state.anchor !== null) {
        state.anchorMap[state.anchor] = _result;
      }
  
      ch = state.input.charCodeAt(state.position);
  
      while (ch !== 0) {
        if (state.firstTabInLine !== -1) {
          state.position = state.firstTabInLine;
          throwError(state, 'tab characters must not be used in indentation');
        }
  
        if (ch !== 0x2D/* - */) {
          break;
        }
  
        following = state.input.charCodeAt(state.position + 1);
  
        if (!is_WS_OR_EOL(following)) {
          break;
        }
  
        detected = true;
        state.position++;
  
        if (skipSeparationSpace(state, true, -1)) {
          if (state.lineIndent <= nodeIndent) {
            _result.push(null);
            ch = state.input.charCodeAt(state.position);
            continue;
          }
        }
  
        _line = state.line;
        composeNode(state, nodeIndent, CONTEXT_BLOCK_IN, false, true);
        _result.push(state.result);
        skipSeparationSpace(state, true, -1);
  
        ch = state.input.charCodeAt(state.position);
  
        if ((state.line === _line || state.lineIndent > nodeIndent) && (ch !== 0)) {
          throwError(state, 'bad indentation of a sequence entry');
        } else if (state.lineIndent < nodeIndent) {
          break;
        }
      }
  
      if (detected) {
        state.tag = _tag;
        state.anchor = _anchor;
        state.kind = 'sequence';
        state.result = _result;
        return true;
      }
      return false;
    }
  
    function readBlockMapping(state, nodeIndent, flowIndent) {
      var following,
          allowCompact,
          _line,
          _keyLine,
          _keyLineStart,
          _keyPos,
          _tag          = state.tag,
          _anchor       = state.anchor,
          _result       = {},
          overridableKeys = Object.create(null),
          keyTag        = null,
          keyNode       = null,
          valueNode     = null,
          atExplicitKey = false,
          detected      = false,
          ch;
  
      // there is a leading tab before this token, so it can't be a block sequence/mapping;
      // it can still be flow sequence/mapping or a scalar
      if (state.firstTabInLine !== -1) return false;
  
      if (state.anchor !== null) {
        state.anchorMap[state.anchor] = _result;
      }
  
      ch = state.input.charCodeAt(state.position);
  
      while (ch !== 0) {
        if (!atExplicitKey && state.firstTabInLine !== -1) {
          state.position = state.firstTabInLine;
          throwError(state, 'tab characters must not be used in indentation');
        }
  
        following = state.input.charCodeAt(state.position + 1);
        _line = state.line; // Save the current line.
  
        //
        // Explicit notation case. There are two separate blocks:
        // first for the key (denoted by "?") and second for the value (denoted by ":")
        //
        if ((ch === 0x3F/* ? */ || ch === 0x3A/* : */) && is_WS_OR_EOL(following)) {
  
          if (ch === 0x3F/* ? */) {
            if (atExplicitKey) {
              storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);
              keyTag = keyNode = valueNode = null;
            }
  
            detected = true;
            atExplicitKey = true;
            allowCompact = true;
  
          } else if (atExplicitKey) {
            // i.e. 0x3A/* : */ === character after the explicit key.
            atExplicitKey = false;
            allowCompact = true;
  
          } else {
            throwError(state, 'incomplete explicit mapping pair; a key node is missed; or followed by a non-tabulated empty line');
          }
  
          state.position += 1;
          ch = following;
  
        //
        // Implicit notation case. Flow-style node as the key first, then ":", and the value.
        //
        } else {
          _keyLine = state.line;
          _keyLineStart = state.lineStart;
          _keyPos = state.position;
  
          if (!composeNode(state, flowIndent, CONTEXT_FLOW_OUT, false, true)) {
            // Neither implicit nor explicit notation.
            // Reading is done. Go to the epilogue.
            break;
          }
  
          if (state.line === _line) {
            ch = state.input.charCodeAt(state.position);
  
            while (is_WHITE_SPACE(ch)) {
              ch = state.input.charCodeAt(++state.position);
            }
  
            if (ch === 0x3A/* : */) {
              ch = state.input.charCodeAt(++state.position);
  
              if (!is_WS_OR_EOL(ch)) {
                throwError(state, 'a whitespace character is expected after the key-value separator within a block mapping');
              }
  
              if (atExplicitKey) {
                storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);
                keyTag = keyNode = valueNode = null;
              }
  
              detected = true;
              atExplicitKey = false;
              allowCompact = false;
              keyTag = state.tag;
              keyNode = state.result;
  
            } else if (detected) {
              throwError(state, 'can not read an implicit mapping pair; a colon is missed');
  
            } else {
              state.tag = _tag;
              state.anchor = _anchor;
              return true; // Keep the result of `composeNode`.
            }
  
          } else if (detected) {
            throwError(state, 'can not read a block mapping entry; a multiline key may not be an implicit key');
  
          } else {
            state.tag = _tag;
            state.anchor = _anchor;
            return true; // Keep the result of `composeNode`.
          }
        }
  
        //
        // Common reading code for both explicit and implicit notations.
        //
        if (state.line === _line || state.lineIndent > nodeIndent) {
          if (atExplicitKey) {
            _keyLine = state.line;
            _keyLineStart = state.lineStart;
            _keyPos = state.position;
          }
  
          if (composeNode(state, nodeIndent, CONTEXT_BLOCK_OUT, true, allowCompact)) {
            if (atExplicitKey) {
              keyNode = state.result;
            } else {
              valueNode = state.result;
            }
          }
  
          if (!atExplicitKey) {
            storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, _keyLine, _keyLineStart, _keyPos);
            keyTag = keyNode = valueNode = null;
          }
  
          skipSeparationSpace(state, true, -1);
          ch = state.input.charCodeAt(state.position);
        }
  
        if ((state.line === _line || state.lineIndent > nodeIndent) && (ch !== 0)) {
          throwError(state, 'bad indentation of a mapping entry');
        } else if (state.lineIndent < nodeIndent) {
          break;
        }
      }
  
      //
      // Epilogue.
      //
  
      // Special case: last mapping's node contains only the key in explicit notation.
      if (atExplicitKey) {
        storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);
      }
  
      // Expose the resulting mapping.
      if (detected) {
        state.tag = _tag;
        state.anchor = _anchor;
        state.kind = 'mapping';
        state.result = _result;
      }
  
      return detected;
    }
  
    function readTagProperty(state) {
      var _position,
          isVerbatim = false,
          isNamed    = false,
          tagHandle,
          tagName,
          ch;
  
      ch = state.input.charCodeAt(state.position);
  
      if (ch !== 0x21/* ! */) return false;
  
      if (state.tag !== null) {
        throwError(state, 'duplication of a tag property');
      }
  
      ch = state.input.charCodeAt(++state.position);
  
      if (ch === 0x3C/* < */) {
        isVerbatim = true;
        ch = state.input.charCodeAt(++state.position);
  
      } else if (ch === 0x21/* ! */) {
        isNamed = true;
        tagHandle = '!!';
        ch = state.input.charCodeAt(++state.position);
  
      } else {
        tagHandle = '!';
      }
  
      _position = state.position;
  
      if (isVerbatim) {
        do { ch = state.input.charCodeAt(++state.position); }
        while (ch !== 0 && ch !== 0x3E/* > */);
  
        if (state.position < state.length) {
          tagName = state.input.slice(_position, state.position);
          ch = state.input.charCodeAt(++state.position);
        } else {
          throwError(state, 'unexpected end of the stream within a verbatim tag');
        }
      } else {
        while (ch !== 0 && !is_WS_OR_EOL(ch)) {
  
          if (ch === 0x21/* ! */) {
            if (!isNamed) {
              tagHandle = state.input.slice(_position - 1, state.position + 1);
  
              if (!PATTERN_TAG_HANDLE.test(tagHandle)) {
                throwError(state, 'named tag handle cannot contain such characters');
              }
  
              isNamed = true;
              _position = state.position + 1;
            } else {
              throwError(state, 'tag suffix cannot contain exclamation marks');
            }
          }
  
          ch = state.input.charCodeAt(++state.position);
        }
  
        tagName = state.input.slice(_position, state.position);
  
        if (PATTERN_FLOW_INDICATORS.test(tagName)) {
          throwError(state, 'tag suffix cannot contain flow indicator characters');
        }
      }
  
      if (tagName && !PATTERN_TAG_URI.test(tagName)) {
        throwError(state, 'tag name cannot contain such characters: ' + tagName);
      }
  
      try {
        tagName = decodeURIComponent(tagName);
      } catch (err) {
        throwError(state, 'tag name is malformed: ' + tagName);
      }
  
      if (isVerbatim) {
        state.tag = tagName;
  
      } else if (_hasOwnProperty$1.call(state.tagMap, tagHandle)) {
        state.tag = state.tagMap[tagHandle] + tagName;
  
      } else if (tagHandle === '!') {
        state.tag = '!' + tagName;
  
      } else if (tagHandle === '!!') {
        state.tag = 'tag:yaml.org,2002:' + tagName;
  
      } else {
        throwError(state, 'undeclared tag handle "' + tagHandle + '"');
      }
  
      return true;
    }
  
    function readAnchorProperty(state) {
      var _position,
          ch;
  
      ch = state.input.charCodeAt(state.position);
  
      if (ch !== 0x26/* & */) return false;
  
      if (state.anchor !== null) {
        throwError(state, 'duplication of an anchor property');
      }
  
      ch = state.input.charCodeAt(++state.position);
      _position = state.position;
  
      while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
        ch = state.input.charCodeAt(++state.position);
      }
  
      if (state.position === _position) {
        throwError(state, 'name of an anchor node must contain at least one character');
      }
  
      state.anchor = state.input.slice(_position, state.position);
      return true;
    }
  
    function readAlias(state) {
      var _position, alias,
          ch;
  
      ch = state.input.charCodeAt(state.position);
  
      if (ch !== 0x2A/* * */) return false;
  
      ch = state.input.charCodeAt(++state.position);
      _position = state.position;
  
      while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
        ch = state.input.charCodeAt(++state.position);
      }
  
      if (state.position === _position) {
        throwError(state, 'name of an alias node must contain at least one character');
      }
  
      alias = state.input.slice(_position, state.position);
  
      if (!_hasOwnProperty$1.call(state.anchorMap, alias)) {
        throwError(state, 'unidentified alias "' + alias + '"');
      }
  
      state.result = state.anchorMap[alias];
      skipSeparationSpace(state, true, -1);
      return true;
    }
  
    function composeNode(state, parentIndent, nodeContext, allowToSeek, allowCompact) {
      var allowBlockStyles,
          allowBlockScalars,
          allowBlockCollections,
          indentStatus = 1, // 1: this>parent, 0: this=parent, -1: this<parent
          atNewLine  = false,
          hasContent = false,
          typeIndex,
          typeQuantity,
          typeList,
          type,
          flowIndent,
          blockIndent;
  
      if (state.listener !== null) {
        state.listener('open', state);
      }
  
      state.tag    = null;
      state.anchor = null;
      state.kind   = null;
      state.result = null;
  
      allowBlockStyles = allowBlockScalars = allowBlockCollections =
        CONTEXT_BLOCK_OUT === nodeContext ||
        CONTEXT_BLOCK_IN  === nodeContext;
  
      if (allowToSeek) {
        if (skipSeparationSpace(state, true, -1)) {
          atNewLine = true;
  
          if (state.lineIndent > parentIndent) {
            indentStatus = 1;
          } else if (state.lineIndent === parentIndent) {
            indentStatus = 0;
          } else if (state.lineIndent < parentIndent) {
            indentStatus = -1;
          }
        }
      }
  
      if (indentStatus === 1) {
        while (readTagProperty(state) || readAnchorProperty(state)) {
          if (skipSeparationSpace(state, true, -1)) {
            atNewLine = true;
            allowBlockCollections = allowBlockStyles;
  
            if (state.lineIndent > parentIndent) {
              indentStatus = 1;
            } else if (state.lineIndent === parentIndent) {
              indentStatus = 0;
            } else if (state.lineIndent < parentIndent) {
              indentStatus = -1;
            }
          } else {
            allowBlockCollections = false;
          }
        }
      }
  
      if (allowBlockCollections) {
        allowBlockCollections = atNewLine || allowCompact;
      }
  
      if (indentStatus === 1 || CONTEXT_BLOCK_OUT === nodeContext) {
        if (CONTEXT_FLOW_IN === nodeContext || CONTEXT_FLOW_OUT === nodeContext) {
          flowIndent = parentIndent;
        } else {
          flowIndent = parentIndent + 1;
        }
  
        blockIndent = state.position - state.lineStart;
  
        if (indentStatus === 1) {
          if (allowBlockCollections &&
              (readBlockSequence(state, blockIndent) ||
               readBlockMapping(state, blockIndent, flowIndent)) ||
              readFlowCollection(state, flowIndent)) {
            hasContent = true;
          } else {
            if ((allowBlockScalars && readBlockScalar(state, flowIndent)) ||
                readSingleQuotedScalar(state, flowIndent) ||
                readDoubleQuotedScalar(state, flowIndent)) {
              hasContent = true;
  
            } else if (readAlias(state)) {
              hasContent = true;
  
              if (state.tag !== null || state.anchor !== null) {
                throwError(state, 'alias node should not have any properties');
              }
  
            } else if (readPlainScalar(state, flowIndent, CONTEXT_FLOW_IN === nodeContext)) {
              hasContent = true;
  
              if (state.tag === null) {
                state.tag = '?';
              }
            }
  
            if (state.anchor !== null) {
              state.anchorMap[state.anchor] = state.result;
            }
          }
        } else if (indentStatus === 0) {
          // Special case: block sequences are allowed to have same indentation level as the parent.
          // http://www.yaml.org/spec/1.2/spec.html#id2799784
          hasContent = allowBlockCollections && readBlockSequence(state, blockIndent);
        }
      }
  
      if (state.tag === null) {
        if (state.anchor !== null) {
          state.anchorMap[state.anchor] = state.result;
        }
  
      } else if (state.tag === '?') {
        // Implicit resolving is not allowed for non-scalar types, and '?'
        // non-specific tag is only automatically assigned to plain scalars.
        //
        // We only need to check kind conformity in case user explicitly assigns '?'
        // tag, for example like this: "!<?> [0]"
        //
        if (state.result !== null && state.kind !== 'scalar') {
          throwError(state, 'unacceptable node kind for !<?> tag; it should be "scalar", not "' + state.kind + '"');
        }
  
        for (typeIndex = 0, typeQuantity = state.implicitTypes.length; typeIndex < typeQuantity; typeIndex += 1) {
          type = state.implicitTypes[typeIndex];
  
          if (type.resolve(state.result)) { // `state.result` updated in resolver if matched
            state.result = type.construct(state.result);
            state.tag = type.tag;
            if (state.anchor !== null) {
              state.anchorMap[state.anchor] = state.result;
            }
            break;
          }
        }
      } else if (state.tag !== '!') {
        if (_hasOwnProperty$1.call(state.typeMap[state.kind || 'fallback'], state.tag)) {
          type = state.typeMap[state.kind || 'fallback'][state.tag];
        } else {
          // looking for multi type
          type = null;
          typeList = state.typeMap.multi[state.kind || 'fallback'];
  
          for (typeIndex = 0, typeQuantity = typeList.length; typeIndex < typeQuantity; typeIndex += 1) {
            if (state.tag.slice(0, typeList[typeIndex].tag.length) === typeList[typeIndex].tag) {
              type = typeList[typeIndex];
              break;
            }
          }
        }
  
        if (!type) {
          throwError(state, 'unknown tag !<' + state.tag + '>');
        }
  
        if (state.result !== null && type.kind !== state.kind) {
          throwError(state, 'unacceptable node kind for !<' + state.tag + '> tag; it should be "' + type.kind + '", not "' + state.kind + '"');
        }
  
        if (!type.resolve(state.result, state.tag)) { // `state.result` updated in resolver if matched
          throwError(state, 'cannot resolve a node with !<' + state.tag + '> explicit tag');
        } else {
          state.result = type.construct(state.result, state.tag);
          if (state.anchor !== null) {
            state.anchorMap[state.anchor] = state.result;
          }
        }
      }
  
      if (state.listener !== null) {
        state.listener('close', state);
      }
      return state.tag !== null ||  state.anchor !== null || hasContent;
    }
  
    function readDocument(state) {
      var documentStart = state.position,
          _position,
          directiveName,
          directiveArgs,
          hasDirectives = false,
          ch;
  
      state.version = null;
      state.checkLineBreaks = state.legacy;
      state.tagMap = Object.create(null);
      state.anchorMap = Object.create(null);
  
      while ((ch = state.input.charCodeAt(state.position)) !== 0) {
        skipSeparationSpace(state, true, -1);
  
        ch = state.input.charCodeAt(state.position);
  
        if (state.lineIndent > 0 || ch !== 0x25/* % */) {
          break;
        }
  
        hasDirectives = true;
        ch = state.input.charCodeAt(++state.position);
        _position = state.position;
  
        while (ch !== 0 && !is_WS_OR_EOL(ch)) {
          ch = state.input.charCodeAt(++state.position);
        }
  
        directiveName = state.input.slice(_position, state.position);
        directiveArgs = [];
  
        if (directiveName.length < 1) {
          throwError(state, 'directive name must not be less than one character in length');
        }
  
        while (ch !== 0) {
          while (is_WHITE_SPACE(ch)) {
            ch = state.input.charCodeAt(++state.position);
          }
  
          if (ch === 0x23/* # */) {
            do { ch = state.input.charCodeAt(++state.position); }
            while (ch !== 0 && !is_EOL(ch));
            break;
          }
  
          if (is_EOL(ch)) break;
  
          _position = state.position;
  
          while (ch !== 0 && !is_WS_OR_EOL(ch)) {
            ch = state.input.charCodeAt(++state.position);
          }
  
          directiveArgs.push(state.input.slice(_position, state.position));
        }
  
        if (ch !== 0) readLineBreak(state);
  
        if (_hasOwnProperty$1.call(directiveHandlers, directiveName)) {
          directiveHandlers[directiveName](state, directiveName, directiveArgs);
        } else {
          throwWarning(state, 'unknown document directive "' + directiveName + '"');
        }
      }
  
      skipSeparationSpace(state, true, -1);
  
      if (state.lineIndent === 0 &&
          state.input.charCodeAt(state.position)     === 0x2D/* - */ &&
          state.input.charCodeAt(state.position + 1) === 0x2D/* - */ &&
          state.input.charCodeAt(state.position + 2) === 0x2D/* - */) {
        state.position += 3;
        skipSeparationSpace(state, true, -1);
  
      } else if (hasDirectives) {
        throwError(state, 'directives end mark is expected');
      }
  
      composeNode(state, state.lineIndent - 1, CONTEXT_BLOCK_OUT, false, true);
      skipSeparationSpace(state, true, -1);
  
      if (state.checkLineBreaks &&
          PATTERN_NON_ASCII_LINE_BREAKS.test(state.input.slice(documentStart, state.position))) {
        throwWarning(state, 'non-ASCII line breaks are interpreted as content');
      }
  
      state.documents.push(state.result);
  
      if (state.position === state.lineStart && testDocumentSeparator(state)) {
  
        if (state.input.charCodeAt(state.position) === 0x2E/* . */) {
          state.position += 3;
          skipSeparationSpace(state, true, -1);
        }
        return;
      }
  
      if (state.position < (state.length - 1)) {
        throwError(state, 'end of the stream or a document separator is expected');
      } else {
        return;
      }
    }
  
  
    function loadDocuments(input, options) {
      input = String(input);
      options = options || {};
  
      if (input.length !== 0) {
  
        // Add tailing `\n` if not exists
        if (input.charCodeAt(input.length - 1) !== 0x0A/* LF */ &&
            input.charCodeAt(input.length - 1) !== 0x0D/* CR */) {
          input += '\n';
        }
  
        // Strip BOM
        if (input.charCodeAt(0) === 0xFEFF) {
          input = input.slice(1);
        }
      }
  
      var state = new State$1(input, options);
  
      var nullpos = input.indexOf('\0');
  
      if (nullpos !== -1) {
        state.position = nullpos;
        throwError(state, 'null byte is not allowed in input');
      }
  
      // Use 0 as string terminator. That significantly simplifies bounds check.
      state.input += '\0';
  
      while (state.input.charCodeAt(state.position) === 0x20/* Space */) {
        state.lineIndent += 1;
        state.position += 1;
      }
  
      while (state.position < (state.length - 1)) {
        readDocument(state);
      }
  
      return state.documents;
    }
  
  
    function loadAll$1(input, iterator, options) {
      if (iterator !== null && typeof iterator === 'object' && typeof options === 'undefined') {
        options = iterator;
        iterator = null;
      }
  
      var documents = loadDocuments(input, options);
  
      if (typeof iterator !== 'function') {
        return documents;
      }
  
      for (var index = 0, length = documents.length; index < length; index += 1) {
        iterator(documents[index]);
      }
    }
  
  
    function load$1(input, options) {
      var documents = loadDocuments(input, options);
  
      if (documents.length === 0) {
        /*eslint-disable no-undefined*/
        return undefined;
      } else if (documents.length === 1) {
        return documents[0];
      }
      throw new exception('expected a single document in the stream, but found more');
    }
  
  
    var loadAll_1 = loadAll$1;
    var load_1    = load$1;
  
    var loader = {
    	loadAll: loadAll_1,
    	load: load_1
    };
  
    /*eslint-disable no-use-before-define*/
  
  
  
  
  
    var _toString       = Object.prototype.toString;
    var _hasOwnProperty = Object.prototype.hasOwnProperty;
  
    var CHAR_BOM                  = 0xFEFF;
    var CHAR_TAB                  = 0x09; /* Tab */
    var CHAR_LINE_FEED            = 0x0A; /* LF */
    var CHAR_CARRIAGE_RETURN      = 0x0D; /* CR */
    var CHAR_SPACE                = 0x20; /* Space */
    var CHAR_EXCLAMATION          = 0x21; /* ! */
    var CHAR_DOUBLE_QUOTE         = 0x22; /* " */
    var CHAR_SHARP                = 0x23; /* # */
    var CHAR_PERCENT              = 0x25; /* % */
    var CHAR_AMPERSAND            = 0x26; /* & */
    var CHAR_SINGLE_QUOTE         = 0x27; /* ' */
    var CHAR_ASTERISK             = 0x2A; /* * */
    var CHAR_COMMA                = 0x2C; /* , */
    var CHAR_MINUS                = 0x2D; /* - */
    var CHAR_COLON                = 0x3A; /* : */
    var CHAR_EQUALS               = 0x3D; /* = */
    var CHAR_GREATER_THAN         = 0x3E; /* > */
    var CHAR_QUESTION             = 0x3F; /* ? */
    var CHAR_COMMERCIAL_AT        = 0x40; /* @ */
    var CHAR_LEFT_SQUARE_BRACKET  = 0x5B; /* [ */
    var CHAR_RIGHT_SQUARE_BRACKET = 0x5D; /* ] */
    var CHAR_GRAVE_ACCENT         = 0x60; /* ` */
    var CHAR_LEFT_CURLY_BRACKET   = 0x7B; /* { */
    var CHAR_VERTICAL_LINE        = 0x7C; /* | */
    var CHAR_RIGHT_CURLY_BRACKET  = 0x7D; /* } */
  
    var ESCAPE_SEQUENCES = {};
  
    ESCAPE_SEQUENCES[0x00]   = '\\0';
    ESCAPE_SEQUENCES[0x07]   = '\\a';
    ESCAPE_SEQUENCES[0x08]   = '\\b';
    ESCAPE_SEQUENCES[0x09]   = '\\t';
    ESCAPE_SEQUENCES[0x0A]   = '\\n';
    ESCAPE_SEQUENCES[0x0B]   = '\\v';
    ESCAPE_SEQUENCES[0x0C]   = '\\f';
    ESCAPE_SEQUENCES[0x0D]   = '\\r';
    ESCAPE_SEQUENCES[0x1B]   = '\\e';
    ESCAPE_SEQUENCES[0x22]   = '\\"';
    ESCAPE_SEQUENCES[0x5C]   = '\\\\';
    ESCAPE_SEQUENCES[0x85]   = '\\N';
    ESCAPE_SEQUENCES[0xA0]   = '\\_';
    ESCAPE_SEQUENCES[0x2028] = '\\L';
    ESCAPE_SEQUENCES[0x2029] = '\\P';
  
    var DEPRECATED_BOOLEANS_SYNTAX = [
      'y', 'Y', 'yes', 'Yes', 'YES', 'on', 'On', 'ON',
      'n', 'N', 'no', 'No', 'NO', 'off', 'Off', 'OFF'
    ];
  
    var DEPRECATED_BASE60_SYNTAX = /^[-+]?[0-9_]+(?::[0-9_]+)+(?:\.[0-9_]*)?$/;
  
    function compileStyleMap(schema, map) {
      var result, keys, index, length, tag, style, type;
  
      if (map === null) return {};
  
      result = {};
      keys = Object.keys(map);
  
      for (index = 0, length = keys.length; index < length; index += 1) {
        tag = keys[index];
        style = String(map[tag]);
  
        if (tag.slice(0, 2) === '!!') {
          tag = 'tag:yaml.org,2002:' + tag.slice(2);
        }
        type = schema.compiledTypeMap['fallback'][tag];
  
        if (type && _hasOwnProperty.call(type.styleAliases, style)) {
          style = type.styleAliases[style];
        }
  
        result[tag] = style;
      }
  
      return result;
    }
  
    function encodeHex(character) {
      var string, handle, length;
  
      string = character.toString(16).toUpperCase();
  
      if (character <= 0xFF) {
        handle = 'x';
        length = 2;
      } else if (character <= 0xFFFF) {
        handle = 'u';
        length = 4;
      } else if (character <= 0xFFFFFFFF) {
        handle = 'U';
        length = 8;
      } else {
        throw new exception('code point within a string may not be greater than 0xFFFFFFFF');
      }
  
      return '\\' + handle + common.repeat('0', length - string.length) + string;
    }
  
  
    var QUOTING_TYPE_SINGLE = 1,
        QUOTING_TYPE_DOUBLE = 2;
  
    function State(options) {
      this.schema        = options['schema'] || _default;
      this.indent        = Math.max(1, (options['indent'] || 2));
      this.noArrayIndent = options['noArrayIndent'] || false;
      this.skipInvalid   = options['skipInvalid'] || false;
      this.flowLevel     = (common.isNothing(options['flowLevel']) ? -1 : options['flowLevel']);
      this.styleMap      = compileStyleMap(this.schema, options['styles'] || null);
      this.sortKeys      = options['sortKeys'] || false;
      this.lineWidth     = options['lineWidth'] || 80;
      this.noRefs        = options['noRefs'] || false;
      this.noCompatMode  = options['noCompatMode'] || false;
      this.condenseFlow  = options['condenseFlow'] || false;
      this.quotingType   = options['quotingType'] === '"' ? QUOTING_TYPE_DOUBLE : QUOTING_TYPE_SINGLE;
      this.forceQuotes   = options['forceQuotes'] || false;
      this.replacer      = typeof options['replacer'] === 'function' ? options['replacer'] : null;
  
      this.implicitTypes = this.schema.compiledImplicit;
      this.explicitTypes = this.schema.compiledExplicit;
  
      this.tag = null;
      this.result = '';
  
      this.duplicates = [];
      this.usedDuplicates = null;
    }
  
    // Indents every line in a string. Empty lines (\n only) are not indented.
    function indentString(string, spaces) {
      var ind = common.repeat(' ', spaces),
          position = 0,
          next = -1,
          result = '',
          line,
          length = string.length;
  
      while (position < length) {
        next = string.indexOf('\n', position);
        if (next === -1) {
          line = string.slice(position);
          position = length;
        } else {
          line = string.slice(position, next + 1);
          position = next + 1;
        }
  
        if (line.length && line !== '\n') result += ind;
  
        result += line;
      }
  
      return result;
    }
  
    function generateNextLine(state, level) {
      return '\n' + common.repeat(' ', state.indent * level);
    }
  
    function testImplicitResolving(state, str) {
      var index, length, type;
  
      for (index = 0, length = state.implicitTypes.length; index < length; index += 1) {
        type = state.implicitTypes[index];
  
        if (type.resolve(str)) {
          return true;
        }
      }
  
      return false;
    }
  
    // [33] s-white ::= s-space | s-tab
    function isWhitespace(c) {
      return c === CHAR_SPACE || c === CHAR_TAB;
    }
  
    // Returns true if the character can be printed without escaping.
    // From YAML 1.2: "any allowed characters known to be non-printable
    // should also be escaped. [However,] This isn’t mandatory"
    // Derived from nb-char - \t - #x85 - #xA0 - #x2028 - #x2029.
    function isPrintable(c) {
      return  (0x00020 <= c && c <= 0x00007E)
          || ((0x000A1 <= c && c <= 0x00D7FF) && c !== 0x2028 && c !== 0x2029)
          || ((0x0E000 <= c && c <= 0x00FFFD) && c !== CHAR_BOM)
          ||  (0x10000 <= c && c <= 0x10FFFF);
    }
  
    // [34] ns-char ::= nb-char - s-white
    // [27] nb-char ::= c-printable - b-char - c-byte-order-mark
    // [26] b-char  ::= b-line-feed | b-carriage-return
    // Including s-white (for some reason, examples doesn't match specs in this aspect)
    // ns-char ::= c-printable - b-line-feed - b-carriage-return - c-byte-order-mark
    function isNsCharOrWhitespace(c) {
      return isPrintable(c)
        && c !== CHAR_BOM
        // - b-char
        && c !== CHAR_CARRIAGE_RETURN
        && c !== CHAR_LINE_FEED;
    }
  
    // [127]  ns-plain-safe(c) ::= c = flow-out  ⇒ ns-plain-safe-out
    //                             c = flow-in   ⇒ ns-plain-safe-in
    //                             c = block-key ⇒ ns-plain-safe-out
    //                             c = flow-key  ⇒ ns-plain-safe-in
    // [128] ns-plain-safe-out ::= ns-char
    // [129]  ns-plain-safe-in ::= ns-char - c-flow-indicator
    // [130]  ns-plain-char(c) ::=  ( ns-plain-safe(c) - “:” - “#” )
    //                            | ( /* An ns-char preceding */ “#” )
    //                            | ( “:” /* Followed by an ns-plain-safe(c) */ )
    function isPlainSafe(c, prev, inblock) {
      var cIsNsCharOrWhitespace = isNsCharOrWhitespace(c);
      var cIsNsChar = cIsNsCharOrWhitespace && !isWhitespace(c);
      return (
        // ns-plain-safe
        inblock ? // c = flow-in
          cIsNsCharOrWhitespace
          : cIsNsCharOrWhitespace
            // - c-flow-indicator
            && c !== CHAR_COMMA
            && c !== CHAR_LEFT_SQUARE_BRACKET
            && c !== CHAR_RIGHT_SQUARE_BRACKET
            && c !== CHAR_LEFT_CURLY_BRACKET
            && c !== CHAR_RIGHT_CURLY_BRACKET
      )
        // ns-plain-char
        && c !== CHAR_SHARP // false on '#'
        && !(prev === CHAR_COLON && !cIsNsChar) // false on ': '
        || (isNsCharOrWhitespace(prev) && !isWhitespace(prev) && c === CHAR_SHARP) // change to true on '[^ ]#'
        || (prev === CHAR_COLON && cIsNsChar); // change to true on ':[^ ]'
    }
  
    // Simplified test for values allowed as the first character in plain style.
    function isPlainSafeFirst(c) {
      // Uses a subset of ns-char - c-indicator
      // where ns-char = nb-char - s-white.
      // No support of ( ( “?” | “:” | “-” ) /* Followed by an ns-plain-safe(c)) */ ) part
      return isPrintable(c) && c !== CHAR_BOM
        && !isWhitespace(c) // - s-white
        // - (c-indicator ::=
        // “-” | “?” | “:” | “,” | “[” | “]” | “{” | “}”
        && c !== CHAR_MINUS
        && c !== CHAR_QUESTION
        && c !== CHAR_COLON
        && c !== CHAR_COMMA
        && c !== CHAR_LEFT_SQUARE_BRACKET
        && c !== CHAR_RIGHT_SQUARE_BRACKET
        && c !== CHAR_LEFT_CURLY_BRACKET
        && c !== CHAR_RIGHT_CURLY_BRACKET
        // | “#” | “&” | “*” | “!” | “|” | “=” | “>” | “'” | “"”
        && c !== CHAR_SHARP
        && c !== CHAR_AMPERSAND
        && c !== CHAR_ASTERISK
        && c !== CHAR_EXCLAMATION
        && c !== CHAR_VERTICAL_LINE
        && c !== CHAR_EQUALS
        && c !== CHAR_GREATER_THAN
        && c !== CHAR_SINGLE_QUOTE
        && c !== CHAR_DOUBLE_QUOTE
        // | “%” | “@” | “`”)
        && c !== CHAR_PERCENT
        && c !== CHAR_COMMERCIAL_AT
        && c !== CHAR_GRAVE_ACCENT;
    }
  
    // Simplified test for values allowed as the last character in plain style.
    function isPlainSafeLast(c) {
      // just not whitespace or colon, it will be checked to be plain character later
      return !isWhitespace(c) && c !== CHAR_COLON;
    }
  
    // Same as 'string'.codePointAt(pos), but works in older browsers.
    function codePointAt(string, pos) {
      var first = string.charCodeAt(pos), second;
      if (first >= 0xD800 && first <= 0xDBFF && pos + 1 < string.length) {
        second = string.charCodeAt(pos + 1);
        if (second >= 0xDC00 && second <= 0xDFFF) {
          // https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
          return (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
        }
      }
      return first;
    }
  
    // Determines whether block indentation indicator is required.
    function needIndentIndicator(string) {
      var leadingSpaceRe = /^\n* /;
      return leadingSpaceRe.test(string);
    }
  
    var STYLE_PLAIN   = 1,
        STYLE_SINGLE  = 2,
        STYLE_LITERAL = 3,
        STYLE_FOLDED  = 4,
        STYLE_DOUBLE  = 5;
  
    // Determines which scalar styles are possible and returns the preferred style.
    // lineWidth = -1 => no limit.
    // Pre-conditions: str.length > 0.
    // Post-conditions:
    //    STYLE_PLAIN or STYLE_SINGLE => no \n are in the string.
    //    STYLE_LITERAL => no lines are suitable for folding (or lineWidth is -1).
    //    STYLE_FOLDED => a line > lineWidth and can be folded (and lineWidth != -1).
    function chooseScalarStyle(string, singleLineOnly, indentPerLevel, lineWidth,
      testAmbiguousType, quotingType, forceQuotes, inblock) {
  
      var i;
      var char = 0;
      var prevChar = null;
      var hasLineBreak = false;
      var hasFoldableLine = false; // only checked if shouldTrackWidth
      var shouldTrackWidth = lineWidth !== -1;
      var previousLineBreak = -1; // count the first line correctly
      var plain = isPlainSafeFirst(codePointAt(string, 0))
              && isPlainSafeLast(codePointAt(string, string.length - 1));
  
      if (singleLineOnly || forceQuotes) {
        // Case: no block styles.
        // Check for disallowed characters to rule out plain and single.
        for (i = 0; i < string.length; char >= 0x10000 ? i += 2 : i++) {
          char = codePointAt(string, i);
          if (!isPrintable(char)) {
            return STYLE_DOUBLE;
          }
          plain = plain && isPlainSafe(char, prevChar, inblock);
          prevChar = char;
        }
      } else {
        // Case: block styles permitted.
        for (i = 0; i < string.length; char >= 0x10000 ? i += 2 : i++) {
          char = codePointAt(string, i);
          if (char === CHAR_LINE_FEED) {
            hasLineBreak = true;
            // Check if any line can be folded.
            if (shouldTrackWidth) {
              hasFoldableLine = hasFoldableLine ||
                // Foldable line = too long, and not more-indented.
                (i - previousLineBreak - 1 > lineWidth &&
                 string[previousLineBreak + 1] !== ' ');
              previousLineBreak = i;
            }
          } else if (!isPrintable(char)) {
            return STYLE_DOUBLE;
          }
          plain = plain && isPlainSafe(char, prevChar, inblock);
          prevChar = char;
        }
        // in case the end is missing a \n
        hasFoldableLine = hasFoldableLine || (shouldTrackWidth &&
          (i - previousLineBreak - 1 > lineWidth &&
           string[previousLineBreak + 1] !== ' '));
      }
      // Although every style can represent \n without escaping, prefer block styles
      // for multiline, since they're more readable and they don't add empty lines.
      // Also prefer folding a super-long line.
      if (!hasLineBreak && !hasFoldableLine) {
        // Strings interpretable as another type have to be quoted;
        // e.g. the string 'true' vs. the boolean true.
        if (plain && !forceQuotes && !testAmbiguousType(string)) {
          return STYLE_PLAIN;
        }
        return quotingType === QUOTING_TYPE_DOUBLE ? STYLE_DOUBLE : STYLE_SINGLE;
      }
      // Edge case: block indentation indicator can only have one digit.
      if (indentPerLevel > 9 && needIndentIndicator(string)) {
        return STYLE_DOUBLE;
      }
      // At this point we know block styles are valid.
      // Prefer literal style unless we want to fold.
      if (!forceQuotes) {
        return hasFoldableLine ? STYLE_FOLDED : STYLE_LITERAL;
      }
      return quotingType === QUOTING_TYPE_DOUBLE ? STYLE_DOUBLE : STYLE_SINGLE;
    }
  
    // Note: line breaking/folding is implemented for only the folded style.
    // NB. We drop the last trailing newline (if any) of a returned block scalar
    //  since the dumper adds its own newline. This always works:
    //    • No ending newline => unaffected; already using strip "-" chomping.
    //    • Ending newline    => removed then restored.
    //  Importantly, this keeps the "+" chomp indicator from gaining an extra line.
    function writeScalar(state, string, level, iskey, inblock) {
      state.dump = (function () {
        if (string.length === 0) {
          return state.quotingType === QUOTING_TYPE_DOUBLE ? '""' : "''";
        }
        if (!state.noCompatMode) {
          if (DEPRECATED_BOOLEANS_SYNTAX.indexOf(string) !== -1 || DEPRECATED_BASE60_SYNTAX.test(string)) {
            return state.quotingType === QUOTING_TYPE_DOUBLE ? ('"' + string + '"') : ("'" + string + "'");
          }
        }
  
        var indent = state.indent * Math.max(1, level); // no 0-indent scalars
        // As indentation gets deeper, let the width decrease monotonically
        // to the lower bound min(state.lineWidth, 40).
        // Note that this implies
        //  state.lineWidth ≤ 40 + state.indent: width is fixed at the lower bound.
        //  state.lineWidth > 40 + state.indent: width decreases until the lower bound.
        // This behaves better than a constant minimum width which disallows narrower options,
        // or an indent threshold which causes the width to suddenly increase.
        var lineWidth = state.lineWidth === -1
          ? -1 : Math.max(Math.min(state.lineWidth, 40), state.lineWidth - indent);
  
        // Without knowing if keys are implicit/explicit, assume implicit for safety.
        var singleLineOnly = iskey
          // No block styles in flow mode.
          || (state.flowLevel > -1 && level >= state.flowLevel);
        function testAmbiguity(string) {
          return testImplicitResolving(state, string);
        }
  
        switch (chooseScalarStyle(string, singleLineOnly, state.indent, lineWidth,
          testAmbiguity, state.quotingType, state.forceQuotes && !iskey, inblock)) {
  
          case STYLE_PLAIN:
            return string;
          case STYLE_SINGLE:
            return "'" + string.replace(/'/g, "''") + "'";
          case STYLE_LITERAL:
            return '|' + blockHeader(string, state.indent)
              + dropEndingNewline(indentString(string, indent));
          case STYLE_FOLDED:
            return '>' + blockHeader(string, state.indent)
              + dropEndingNewline(indentString(foldString(string, lineWidth), indent));
          case STYLE_DOUBLE:
            return '"' + escapeString(string) + '"';
          default:
            throw new exception('impossible error: invalid scalar style');
        }
      }());
    }
  
    // Pre-conditions: string is valid for a block scalar, 1 <= indentPerLevel <= 9.
    function blockHeader(string, indentPerLevel) {
      var indentIndicator = needIndentIndicator(string) ? String(indentPerLevel) : '';
  
      // note the special case: the string '\n' counts as a "trailing" empty line.
      var clip =          string[string.length - 1] === '\n';
      var keep = clip && (string[string.length - 2] === '\n' || string === '\n');
      var chomp = keep ? '+' : (clip ? '' : '-');
  
      return indentIndicator + chomp + '\n';
    }
  
    // (See the note for writeScalar.)
    function dropEndingNewline(string) {
      return string[string.length - 1] === '\n' ? string.slice(0, -1) : string;
    }
  
    // Note: a long line without a suitable break point will exceed the width limit.
    // Pre-conditions: every char in str isPrintable, str.length > 0, width > 0.
    function foldString(string, width) {
      // In folded style, $k$ consecutive newlines output as $k+1$ newlines—
      // unless they're before or after a more-indented line, or at the very
      // beginning or end, in which case $k$ maps to $k$.
      // Therefore, parse each chunk as newline(s) followed by a content line.
      var lineRe = /(\n+)([^\n]*)/g;
  
      // first line (possibly an empty line)
      var result = (function () {
        var nextLF = string.indexOf('\n');
        nextLF = nextLF !== -1 ? nextLF : string.length;
        lineRe.lastIndex = nextLF;
        return foldLine(string.slice(0, nextLF), width);
      }());
      // If we haven't reached the first content line yet, don't add an extra \n.
      var prevMoreIndented = string[0] === '\n' || string[0] === ' ';
      var moreIndented;
  
      // rest of the lines
      var match;
      while ((match = lineRe.exec(string))) {
        var prefix = match[1], line = match[2];
        moreIndented = (line[0] === ' ');
        result += prefix
          + (!prevMoreIndented && !moreIndented && line !== ''
            ? '\n' : '')
          + foldLine(line, width);
        prevMoreIndented = moreIndented;
      }
  
      return result;
    }
  
    // Greedy line breaking.
    // Picks the longest line under the limit each time,
    // otherwise settles for the shortest line over the limit.
    // NB. More-indented lines *cannot* be folded, as that would add an extra \n.
    function foldLine(line, width) {
      if (line === '' || line[0] === ' ') return line;
  
      // Since a more-indented line adds a \n, breaks can't be followed by a space.
      var breakRe = / [^ ]/g; // note: the match index will always be <= length-2.
      var match;
      // start is an inclusive index. end, curr, and next are exclusive.
      var start = 0, end, curr = 0, next = 0;
      var result = '';
  
      // Invariants: 0 <= start <= length-1.
      //   0 <= curr <= next <= max(0, length-2). curr - start <= width.
      // Inside the loop:
      //   A match implies length >= 2, so curr and next are <= length-2.
      while ((match = breakRe.exec(line))) {
        next = match.index;
        // maintain invariant: curr - start <= width
        if (next - start > width) {
          end = (curr > start) ? curr : next; // derive end <= length-2
          result += '\n' + line.slice(start, end);
          // skip the space that was output as \n
          start = end + 1;                    // derive start <= length-1
        }
        curr = next;
      }
  
      // By the invariants, start <= length-1, so there is something left over.
      // It is either the whole string or a part starting from non-whitespace.
      result += '\n';
      // Insert a break if the remainder is too long and there is a break available.
      if (line.length - start > width && curr > start) {
        result += line.slice(start, curr) + '\n' + line.slice(curr + 1);
      } else {
        result += line.slice(start);
      }
  
      return result.slice(1); // drop extra \n joiner
    }
  
    // Escapes a double-quoted string.
    function escapeString(string) {
      var result = '';
      var char = 0;
      var escapeSeq;
  
      for (var i = 0; i < string.length; char >= 0x10000 ? i += 2 : i++) {
        char = codePointAt(string, i);
        escapeSeq = ESCAPE_SEQUENCES[char];
  
        if (!escapeSeq && isPrintable(char)) {
          result += string[i];
          if (char >= 0x10000) result += string[i + 1];
        } else {
          result += escapeSeq || encodeHex(char);
        }
      }
  
      return result;
    }
  
    function writeFlowSequence(state, level, object) {
      var _result = '',
          _tag    = state.tag,
          index,
          length,
          value;
  
      for (index = 0, length = object.length; index < length; index += 1) {
        value = object[index];
  
        if (state.replacer) {
          value = state.replacer.call(object, String(index), value);
        }
  
        // Write only valid elements, put null instead of invalid elements.
        if (writeNode(state, level, value, false, false) ||
            (typeof value === 'undefined' &&
             writeNode(state, level, null, false, false))) {
  
          if (_result !== '') _result += ',' + (!state.condenseFlow ? ' ' : '');
          _result += state.dump;
        }
      }
  
      state.tag = _tag;
      state.dump = '[' + _result + ']';
    }
  
    function writeBlockSequence(state, level, object, compact) {
      var _result = '',
          _tag    = state.tag,
          index,
          length,
          value;
  
      for (index = 0, length = object.length; index < length; index += 1) {
        value = object[index];
  
        if (state.replacer) {
          value = state.replacer.call(object, String(index), value);
        }
  
        // Write only valid elements, put null instead of invalid elements.
        if (writeNode(state, level + 1, value, true, true, false, true) ||
            (typeof value === 'undefined' &&
             writeNode(state, level + 1, null, true, true, false, true))) {
  
          if (!compact || _result !== '') {
            _result += generateNextLine(state, level);
          }
  
          if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
            _result += '-';
          } else {
            _result += '- ';
          }
  
          _result += state.dump;
        }
      }
  
      state.tag = _tag;
      state.dump = _result || '[]'; // Empty sequence if no valid values.
    }
  
    function writeFlowMapping(state, level, object) {
      var _result       = '',
          _tag          = state.tag,
          objectKeyList = Object.keys(object),
          index,
          length,
          objectKey,
          objectValue,
          pairBuffer;
  
      for (index = 0, length = objectKeyList.length; index < length; index += 1) {
  
        pairBuffer = '';
        if (_result !== '') pairBuffer += ', ';
  
        if (state.condenseFlow) pairBuffer += '"';
  
        objectKey = objectKeyList[index];
        objectValue = object[objectKey];
  
        if (state.replacer) {
          objectValue = state.replacer.call(object, objectKey, objectValue);
        }
  
        if (!writeNode(state, level, objectKey, false, false)) {
          continue; // Skip this pair because of invalid key;
        }
  
        if (state.dump.length > 1024) pairBuffer += '? ';
  
        pairBuffer += state.dump + (state.condenseFlow ? '"' : '') + ':' + (state.condenseFlow ? '' : ' ');
  
        if (!writeNode(state, level, objectValue, false, false)) {
          continue; // Skip this pair because of invalid value.
        }
  
        pairBuffer += state.dump;
  
        // Both key and value are valid.
        _result += pairBuffer;
      }
  
      state.tag = _tag;
      state.dump = '{' + _result + '}';
    }
  
    function writeBlockMapping(state, level, object, compact) {
      var _result       = '',
          _tag          = state.tag,
          objectKeyList = Object.keys(object),
          index,
          length,
          objectKey,
          objectValue,
          explicitPair,
          pairBuffer;
  
      // Allow sorting keys so that the output file is deterministic
      if (state.sortKeys === true) {
        // Default sorting
        objectKeyList.sort();
      } else if (typeof state.sortKeys === 'function') {
        // Custom sort function
        objectKeyList.sort(state.sortKeys);
      } else if (state.sortKeys) {
        // Something is wrong
        throw new exception('sortKeys must be a boolean or a function');
      }
  
      for (index = 0, length = objectKeyList.length; index < length; index += 1) {
        pairBuffer = '';
  
        if (!compact || _result !== '') {
          pairBuffer += generateNextLine(state, level);
        }
  
        objectKey = objectKeyList[index];
        objectValue = object[objectKey];
  
        if (state.replacer) {
          objectValue = state.replacer.call(object, objectKey, objectValue);
        }
  
        if (!writeNode(state, level + 1, objectKey, true, true, true)) {
          continue; // Skip this pair because of invalid key.
        }
  
        explicitPair = (state.tag !== null && state.tag !== '?') ||
                       (state.dump && state.dump.length > 1024);
  
        if (explicitPair) {
          if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
            pairBuffer += '?';
          } else {
            pairBuffer += '? ';
          }
        }
  
        pairBuffer += state.dump;
  
        if (explicitPair) {
          pairBuffer += generateNextLine(state, level);
        }
  
        if (!writeNode(state, level + 1, objectValue, true, explicitPair)) {
          continue; // Skip this pair because of invalid value.
        }
  
        if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
          pairBuffer += ':';
        } else {
          pairBuffer += ': ';
        }
  
        pairBuffer += state.dump;
  
        // Both key and value are valid.
        _result += pairBuffer;
      }
  
      state.tag = _tag;
      state.dump = _result || '{}'; // Empty mapping if no valid pairs.
    }
  
    function detectType(state, object, explicit) {
      var _result, typeList, index, length, type, style;
  
      typeList = explicit ? state.explicitTypes : state.implicitTypes;
  
      for (index = 0, length = typeList.length; index < length; index += 1) {
        type = typeList[index];
  
        if ((type.instanceOf  || type.predicate) &&
            (!type.instanceOf || ((typeof object === 'object') && (object instanceof type.instanceOf))) &&
            (!type.predicate  || type.predicate(object))) {
  
          if (explicit) {
            if (type.multi && type.representName) {
              state.tag = type.representName(object);
            } else {
              state.tag = type.tag;
            }
          } else {
            state.tag = '?';
          }
  
          if (type.represent) {
            style = state.styleMap[type.tag] || type.defaultStyle;
  
            if (_toString.call(type.represent) === '[object Function]') {
              _result = type.represent(object, style);
            } else if (_hasOwnProperty.call(type.represent, style)) {
              _result = type.represent[style](object, style);
            } else {
              throw new exception('!<' + type.tag + '> tag resolver accepts not "' + style + '" style');
            }
  
            state.dump = _result;
          }
  
          return true;
        }
      }
  
      return false;
    }
  
    // Serializes `object` and writes it to global `result`.
    // Returns true on success, or false on invalid object.
    //
    function writeNode(state, level, object, block, compact, iskey, isblockseq) {
      state.tag = null;
      state.dump = object;
  
      if (!detectType(state, object, false)) {
        detectType(state, object, true);
      }
  
      var type = _toString.call(state.dump);
      var inblock = block;
      var tagStr;
  
      if (block) {
        block = (state.flowLevel < 0 || state.flowLevel > level);
      }
  
      var objectOrArray = type === '[object Object]' || type === '[object Array]',
          duplicateIndex,
          duplicate;
  
      if (objectOrArray) {
        duplicateIndex = state.duplicates.indexOf(object);
        duplicate = duplicateIndex !== -1;
      }
  
      if ((state.tag !== null && state.tag !== '?') || duplicate || (state.indent !== 2 && level > 0)) {
        compact = false;
      }
  
      if (duplicate && state.usedDuplicates[duplicateIndex]) {
        state.dump = '*ref_' + duplicateIndex;
      } else {
        if (objectOrArray && duplicate && !state.usedDuplicates[duplicateIndex]) {
          state.usedDuplicates[duplicateIndex] = true;
        }
        if (type === '[object Object]') {
          if (block && (Object.keys(state.dump).length !== 0)) {
            writeBlockMapping(state, level, state.dump, compact);
            if (duplicate) {
              state.dump = '&ref_' + duplicateIndex + state.dump;
            }
          } else {
            writeFlowMapping(state, level, state.dump);
            if (duplicate) {
              state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
            }
          }
        } else if (type === '[object Array]') {
          if (block && (state.dump.length !== 0)) {
            if (state.noArrayIndent && !isblockseq && level > 0) {
              writeBlockSequence(state, level - 1, state.dump, compact);
            } else {
              writeBlockSequence(state, level, state.dump, compact);
            }
            if (duplicate) {
              state.dump = '&ref_' + duplicateIndex + state.dump;
            }
          } else {
            writeFlowSequence(state, level, state.dump);
            if (duplicate) {
              state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
            }
          }
        } else if (type === '[object String]') {
          if (state.tag !== '?') {
            writeScalar(state, state.dump, level, iskey, inblock);
          }
        } else if (type === '[object Undefined]') {
          return false;
        } else {
          if (state.skipInvalid) return false;
          throw new exception('unacceptable kind of an object to dump ' + type);
        }
  
        if (state.tag !== null && state.tag !== '?') {
          // Need to encode all characters except those allowed by the spec:
          //
          // [35] ns-dec-digit    ::=  [#x30-#x39] /* 0-9 */
          // [36] ns-hex-digit    ::=  ns-dec-digit
          //                         | [#x41-#x46] /* A-F */ | [#x61-#x66] /* a-f */
          // [37] ns-ascii-letter ::=  [#x41-#x5A] /* A-Z */ | [#x61-#x7A] /* a-z */
          // [38] ns-word-char    ::=  ns-dec-digit | ns-ascii-letter | “-”
          // [39] ns-uri-char     ::=  “%” ns-hex-digit ns-hex-digit | ns-word-char | “#”
          //                         | “;” | “/” | “?” | “:” | “@” | “&” | “=” | “+” | “$” | “,”
          //                         | “_” | “.” | “!” | “~” | “*” | “'” | “(” | “)” | “[” | “]”
          //
          // Also need to encode '!' because it has special meaning (end of tag prefix).
          //
          tagStr = encodeURI(
            state.tag[0] === '!' ? state.tag.slice(1) : state.tag
          ).replace(/!/g, '%21');
  
          if (state.tag[0] === '!') {
            tagStr = '!' + tagStr;
          } else if (tagStr.slice(0, 18) === 'tag:yaml.org,2002:') {
            tagStr = '!!' + tagStr.slice(18);
          } else {
            tagStr = '!<' + tagStr + '>';
          }
  
          state.dump = tagStr + ' ' + state.dump;
        }
      }
  
      return true;
    }
  
    function getDuplicateReferences(object, state) {
      var objects = [],
          duplicatesIndexes = [],
          index,
          length;
  
      inspectNode(object, objects, duplicatesIndexes);
  
      for (index = 0, length = duplicatesIndexes.length; index < length; index += 1) {
        state.duplicates.push(objects[duplicatesIndexes[index]]);
      }
      state.usedDuplicates = new Array(length);
    }
  
    function inspectNode(object, objects, duplicatesIndexes) {
      var objectKeyList,
          index,
          length;
  
      if (object !== null && typeof object === 'object') {
        index = objects.indexOf(object);
        if (index !== -1) {
          if (duplicatesIndexes.indexOf(index) === -1) {
            duplicatesIndexes.push(index);
          }
        } else {
          objects.push(object);
  
          if (Array.isArray(object)) {
            for (index = 0, length = object.length; index < length; index += 1) {
              inspectNode(object[index], objects, duplicatesIndexes);
            }
          } else {
            objectKeyList = Object.keys(object);
  
            for (index = 0, length = objectKeyList.length; index < length; index += 1) {
              inspectNode(object[objectKeyList[index]], objects, duplicatesIndexes);
            }
          }
        }
      }
    }
  
    function dump$1(input, options) {
      options = options || {};
  
      var state = new State(options);
  
      if (!state.noRefs) getDuplicateReferences(input, state);
  
      var value = input;
  
      if (state.replacer) {
        value = state.replacer.call({ '': value }, '', value);
      }
  
      if (writeNode(state, 0, value, true, true)) return state.dump + '\n';
  
      return '';
    }
  
    var dump_1 = dump$1;
  
    var dumper = {
    	dump: dump_1
    };
  
    function renamed(from, to) {
      return function () {
        throw new Error('Function yaml.' + from + ' is removed in js-yaml 4. ' +
          'Use yaml.' + to + ' instead, which is now safe by default.');
      };
    }
  
  
    var Type                = type;
    var Schema              = schema;
    var FAILSAFE_SCHEMA     = failsafe;
    var JSON_SCHEMA         = json;
    var CORE_SCHEMA         = core;
    var DEFAULT_SCHEMA      = _default;
    var load                = loader.load;
    var loadAll             = loader.loadAll;
    var dump                = dumper.dump;
    var YAMLException       = exception;
  
    // Re-export all types in case user wants to create custom schema
    var types = {
      binary:    binary,
      float:     float,
      map:       map,
      null:      _null,
      pairs:     pairs,
      set:       set,
      timestamp: timestamp,
      bool:      bool,
      int:       int,
      merge:     merge,
      omap:      omap,
      seq:       seq,
      str:       str
    };
  
    // Removed functions from JS-YAML 3.0.x
    var safeLoad            = renamed('safeLoad', 'load');
    var safeLoadAll         = renamed('safeLoadAll', 'loadAll');
    var safeDump            = renamed('safeDump', 'dump');
  
    var jsYaml = {
    	Type: Type,
    	Schema: Schema,
    	FAILSAFE_SCHEMA: FAILSAFE_SCHEMA,
    	JSON_SCHEMA: JSON_SCHEMA,
    	CORE_SCHEMA: CORE_SCHEMA,
    	DEFAULT_SCHEMA: DEFAULT_SCHEMA,
    	load: load,
    	loadAll: loadAll,
    	dump: dump,
    	YAMLException: YAMLException,
    	types: types,
    	safeLoad: safeLoad,
    	safeLoadAll: safeLoadAll,
    	safeDump: safeDump
    };
  
    var ParseYaml = function ParseYaml(ymlString) {
      var doc;
  
      try {
        doc = jsYaml.load(ymlString);
      } catch (e) {
        console.log(e);
      }
  
      return doc;
    };
  
    var global$1 = (typeof global !== "undefined" ? global :
                typeof self !== "undefined" ? self :
                typeof window !== "undefined" ? window : {});
  
    // shim for using process in browser
    // based off https://github.com/defunctzombie/node-process/blob/master/browser.js
  
    function defaultSetTimout() {
        throw new Error('setTimeout has not been defined');
    }
    function defaultClearTimeout () {
        throw new Error('clearTimeout has not been defined');
    }
    var cachedSetTimeout = defaultSetTimout;
    var cachedClearTimeout = defaultClearTimeout;
    if (typeof global$1.setTimeout === 'function') {
        cachedSetTimeout = setTimeout;
    }
    if (typeof global$1.clearTimeout === 'function') {
        cachedClearTimeout = clearTimeout;
    }
  
    function runTimeout(fun) {
        if (cachedSetTimeout === setTimeout) {
            //normal enviroments in sane situations
            return setTimeout(fun, 0);
        }
        // if setTimeout wasn't available but was latter defined
        if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
            cachedSetTimeout = setTimeout;
            return setTimeout(fun, 0);
        }
        try {
            // when when somebody has screwed with setTimeout but no I.E. maddness
            return cachedSetTimeout(fun, 0);
        } catch(e){
            try {
                // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
                return cachedSetTimeout.call(null, fun, 0);
            } catch(e){
                // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
                return cachedSetTimeout.call(this, fun, 0);
            }
        }
  
  
    }
    function runClearTimeout(marker) {
        if (cachedClearTimeout === clearTimeout) {
            //normal enviroments in sane situations
            return clearTimeout(marker);
        }
        // if clearTimeout wasn't available but was latter defined
        if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
            cachedClearTimeout = clearTimeout;
            return clearTimeout(marker);
        }
        try {
            // when when somebody has screwed with setTimeout but no I.E. maddness
            return cachedClearTimeout(marker);
        } catch (e){
            try {
                // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
                return cachedClearTimeout.call(null, marker);
            } catch (e){
                // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
                // Some versions of I.E. have different rules for clearTimeout vs setTimeout
                return cachedClearTimeout.call(this, marker);
            }
        }
  
  
  
    }
    var queue = [];
    var draining = false;
    var currentQueue;
    var queueIndex = -1;
  
    function cleanUpNextTick() {
        if (!draining || !currentQueue) {
            return;
        }
        draining = false;
        if (currentQueue.length) {
            queue = currentQueue.concat(queue);
        } else {
            queueIndex = -1;
        }
        if (queue.length) {
            drainQueue();
        }
    }
  
    function drainQueue() {
        if (draining) {
            return;
        }
        var timeout = runTimeout(cleanUpNextTick);
        draining = true;
  
        var len = queue.length;
        while(len) {
            currentQueue = queue;
            queue = [];
            while (++queueIndex < len) {
                if (currentQueue) {
                    currentQueue[queueIndex].run();
                }
            }
            queueIndex = -1;
            len = queue.length;
        }
        currentQueue = null;
        draining = false;
        runClearTimeout(timeout);
    }
    function nextTick(fun) {
        var args = new Array(arguments.length - 1);
        if (arguments.length > 1) {
            for (var i = 1; i < arguments.length; i++) {
                args[i - 1] = arguments[i];
            }
        }
        queue.push(new Item(fun, args));
        if (queue.length === 1 && !draining) {
            runTimeout(drainQueue);
        }
    }
    // v8 likes predictible objects
    function Item(fun, array) {
        this.fun = fun;
        this.array = array;
    }
    Item.prototype.run = function () {
        this.fun.apply(null, this.array);
    };
    var title = 'browser';
    var platform = 'browser';
    var browser = true;
    var env = {};
    var argv = [];
    var version = ''; // empty string to avoid regexp issues
    var versions = {};
    var release = {};
    var config = {};
  
    function noop() {}
  
    var on = noop;
    var addListener = noop;
    var once = noop;
    var off = noop;
    var removeListener = noop;
    var removeAllListeners = noop;
    var emit = noop;
  
    function binding(name) {
        throw new Error('process.binding is not supported');
    }
  
    function cwd () { return '/' }
    function chdir (dir) {
        throw new Error('process.chdir is not supported');
    }function umask() { return 0; }
  
    // from https://github.com/kumavis/browser-process-hrtime/blob/master/index.js
    var performance = global$1.performance || {};
    var performanceNow =
      performance.now        ||
      performance.mozNow     ||
      performance.msNow      ||
      performance.oNow       ||
      performance.webkitNow  ||
      function(){ return (new Date()).getTime() };
  
    // generate timestamp or delta
    // see http://nodejs.org/api/process.html#process_process_hrtime
    function hrtime(previousTimestamp){
      var clocktime = performanceNow.call(performance)*1e-3;
      var seconds = Math.floor(clocktime);
      var nanoseconds = Math.floor((clocktime%1)*1e9);
      if (previousTimestamp) {
        seconds = seconds - previousTimestamp[0];
        nanoseconds = nanoseconds - previousTimestamp[1];
        if (nanoseconds<0) {
          seconds--;
          nanoseconds += 1e9;
        }
      }
      return [seconds,nanoseconds]
    }
  
    var startTime = new Date();
    function uptime() {
      var currentTime = new Date();
      var dif = currentTime - startTime;
      return dif / 1000;
    }
  
    var process = {
      nextTick: nextTick,
      title: title,
      browser: browser,
      env: env,
      argv: argv,
      version: version,
      versions: versions,
      on: on,
      addListener: addListener,
      once: once,
      off: off,
      removeListener: removeListener,
      removeAllListeners: removeAllListeners,
      emit: emit,
      binding: binding,
      cwd: cwd,
      chdir: chdir,
      umask: umask,
      hrtime: hrtime,
      platform: platform,
      release: release,
      config: config,
      uptime: uptime
    };
  
    function commonjsRequire () {
    	throw new Error('Dynamic requires are not currently supported by rollup-plugin-commonjs');
    }
  
    function createCommonjsModule(fn, module) {
    	return module = { exports: {} }, fn(module, module.exports), module.exports;
    }
  
    function getCjsExportFromNamespace (n) {
    	return n && n['default'] || n;
    }
  
    var empty = {};
  
    var empty$1 = /*#__PURE__*/Object.freeze({
      __proto__: null,
      'default': empty
    });
  
    // Copyright Joyent, Inc. and other Node contributors.
    //
    // Permission is hereby granted, free of charge, to any person obtaining a
    // copy of this software and associated documentation files (the
    // "Software"), to deal in the Software without restriction, including
    // without limitation the rights to use, copy, modify, merge, publish,
    // distribute, sublicense, and/or sell copies of the Software, and to permit
    // persons to whom the Software is furnished to do so, subject to the
    // following conditions:
    //
    // The above copyright notice and this permission notice shall be included
    // in all copies or substantial portions of the Software.
    //
    // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
    // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
    // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
    // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
    // USE OR OTHER DEALINGS IN THE SOFTWARE.
  
    // resolves . and .. elements in a path array with directory names there
    // must be no slashes, empty elements, or device names (c:\) in the array
    // (so also no leading and trailing slashes - it does not distinguish
    // relative and absolute paths)
    function normalizeArray(parts, allowAboveRoot) {
      // if the path tries to go above the root, `up` ends up > 0
      var up = 0;
      for (var i = parts.length - 1; i >= 0; i--) {
        var last = parts[i];
        if (last === '.') {
          parts.splice(i, 1);
        } else if (last === '..') {
          parts.splice(i, 1);
          up++;
        } else if (up) {
          parts.splice(i, 1);
          up--;
        }
      }
  
      // if the path is allowed to go above the root, restore leading ..s
      if (allowAboveRoot) {
        for (; up--; up) {
          parts.unshift('..');
        }
      }
  
      return parts;
    }
  
    // Split a filename into [root, dir, basename, ext], unix version
    // 'root' is just a slash, or nothing.
    var splitPathRe =
        /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
    var splitPath = function(filename) {
      return splitPathRe.exec(filename).slice(1);
    };
  
    // path.resolve([from ...], to)
    // posix version
    function resolve() {
      var resolvedPath = '',
          resolvedAbsolute = false;
  
      for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
        var path = (i >= 0) ? arguments[i] : '/';
  
        // Skip empty and invalid entries
        if (typeof path !== 'string') {
          throw new TypeError('Arguments to path.resolve must be strings');
        } else if (!path) {
          continue;
        }
  
        resolvedPath = path + '/' + resolvedPath;
        resolvedAbsolute = path.charAt(0) === '/';
      }
  
      // At this point the path should be resolved to a full absolute path, but
      // handle relative paths to be safe (might happen when process.cwd() fails)
  
      // Normalize the path
      resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
        return !!p;
      }), !resolvedAbsolute).join('/');
  
      return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
    }
    // path.normalize(path)
    // posix version
    function normalize(path) {
      var isPathAbsolute = isAbsolute(path),
          trailingSlash = substr(path, -1) === '/';
  
      // Normalize the path
      path = normalizeArray(filter(path.split('/'), function(p) {
        return !!p;
      }), !isPathAbsolute).join('/');
  
      if (!path && !isPathAbsolute) {
        path = '.';
      }
      if (path && trailingSlash) {
        path += '/';
      }
  
      return (isPathAbsolute ? '/' : '') + path;
    }
    // posix version
    function isAbsolute(path) {
      return path.charAt(0) === '/';
    }
  
    // posix version
    function join() {
      var paths = Array.prototype.slice.call(arguments, 0);
      return normalize(filter(paths, function(p, index) {
        if (typeof p !== 'string') {
          throw new TypeError('Arguments to path.join must be strings');
        }
        return p;
      }).join('/'));
    }
  
  
    // path.relative(from, to)
    // posix version
    function relative(from, to) {
      from = resolve(from).substr(1);
      to = resolve(to).substr(1);
  
      function trim(arr) {
        var start = 0;
        for (; start < arr.length; start++) {
          if (arr[start] !== '') break;
        }
  
        var end = arr.length - 1;
        for (; end >= 0; end--) {
          if (arr[end] !== '') break;
        }
  
        if (start > end) return [];
        return arr.slice(start, end - start + 1);
      }
  
      var fromParts = trim(from.split('/'));
      var toParts = trim(to.split('/'));
  
      var length = Math.min(fromParts.length, toParts.length);
      var samePartsLength = length;
      for (var i = 0; i < length; i++) {
        if (fromParts[i] !== toParts[i]) {
          samePartsLength = i;
          break;
        }
      }
  
      var outputParts = [];
      for (var i = samePartsLength; i < fromParts.length; i++) {
        outputParts.push('..');
      }
  
      outputParts = outputParts.concat(toParts.slice(samePartsLength));
  
      return outputParts.join('/');
    }
  
    var sep = '/';
    var delimiter = ':';
  
    function dirname(path) {
      var result = splitPath(path),
          root = result[0],
          dir = result[1];
  
      if (!root && !dir) {
        // No dirname whatsoever
        return '.';
      }
  
      if (dir) {
        // It has a dirname, strip trailing slash
        dir = dir.substr(0, dir.length - 1);
      }
  
      return root + dir;
    }
  
    function basename(path, ext) {
      var f = splitPath(path)[2];
      // TODO: make this comparison case-insensitive on windows?
      if (ext && f.substr(-1 * ext.length) === ext) {
        f = f.substr(0, f.length - ext.length);
      }
      return f;
    }
  
  
    function extname(path) {
      return splitPath(path)[3];
    }
    var require$$1 = {
      extname: extname,
      basename: basename,
      dirname: dirname,
      sep: sep,
      delimiter: delimiter,
      relative: relative,
      join: join,
      isAbsolute: isAbsolute,
      normalize: normalize,
      resolve: resolve
    };
    function filter (xs, f) {
        if (xs.filter) return xs.filter(f);
        var res = [];
        for (var i = 0; i < xs.length; i++) {
            if (f(xs[i], i, xs)) res.push(xs[i]);
        }
        return res;
    }
  
    // String.prototype.substr - negative index don't work in IE8
    var substr = 'ab'.substr(-1) === 'b' ?
        function (str, start, len) { return str.substr(start, len) } :
        function (str, start, len) {
            if (start < 0) start = str.length + start;
            return str.substr(start, len);
        }
    ;
  
    var require$$0 = getCjsExportFromNamespace(empty$1);
  
    var parser_1 = createCommonjsModule(function (module, exports) {
      /* parser generated by jison 0.4.18 */
  
      /*
        Returns a Parser object of the following structure:
      
        Parser: {
          yy: {}
        }
      
        Parser.prototype: {
          yy: {},
          trace: function(),
          symbols_: {associative list: name ==> number},
          terminals_: {associative list: number ==> name},
          productions_: [...],
          performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate, $$, _$),
          table: [...],
          defaultActions: {...},
          parseError: function(str, hash),
          parse: function(input),
      
          lexer: {
              EOF: 1,
              parseError: function(str, hash),
              setInput: function(input),
              input: function(),
              unput: function(str),
              more: function(),
              less: function(n),
              pastInput: function(),
              upcomingInput: function(),
              showPosition: function(),
              test_match: function(regex_match_array, rule_index),
              next: function(),
              lex: function(),
              begin: function(condition),
              popState: function(),
              _currentRules: function(),
              topState: function(),
              pushState: function(condition),
      
              options: {
                  ranges: boolean           (optional: true ==> token location info will include a .range[] member)
                  flex: boolean             (optional: true ==> flex-like lexing behaviour where the rules are tested exhaustively to find the longest match)
                  backtrack_lexer: boolean  (optional: true ==> lexer regexes are tested in order and for each matching regex the action code is invoked; the lexer terminates the scan when a token is returned by the action code)
              },
      
              performAction: function(yy, yy_, $avoiding_name_collisions, YY_START),
              rules: [...],
              conditions: {associative list: name ==> set},
          }
        }
      
      
        token location info (@$, _$, etc.): {
          first_line: n,
          last_line: n,
          first_column: n,
          last_column: n,
          range: [start_number, end_number]       (where the numbers are indexes into the input string, regular zero-based)
        }
      
      
        the parseError function receives a 'hash' object with these members for lexer and parser errors: {
          text:        (matched text)
          token:       (the produced terminal token, if any)
          line:        (yylineno)
        }
        while parser (grammar) errors will also provide these members, i.e. parser errors deliver a superset of attributes: {
          loc:         (yylloc)
          expected:    (string describing the set of expected tokens)
          recoverable: (boolean: TRUE when the parser has a error recovery rule available for this particular error)
        }
      */
      var parser = function () {
        var o = function o(k, v, _o, l) {
          for (_o = _o || {}, l = k.length; l--; _o[k[l]] = v) {
          }
  
          return _o;
        },
            $V0 = [1, 11],
            $V1 = [1, 3],
            $V2 = [1, 4],
            $V3 = [1, 5],
            $V4 = [1, 6],
            $V5 = [1, 8],
            $V6 = [1, 9],
            $V7 = [1, 10],
            $V8 = [1, 13],
            $V9 = [1, 14],
            $Va = [1, 15],
            $Vb = [1, 16],
            $Vc = [1, 17],
            $Vd = [1, 18],
            $Ve = [1, 19],
            $Vf = [1, 20],
            $Vg = [1, 21],
            $Vh = [1, 22],
            $Vi = [1, 23],
            $Vj = [1, 24],
            $Vk = [1, 25],
            $Vl = [1, 26],
            $Vm = [5, 7, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 30],
            $Vn = [5, 7, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30],
            $Vo = [5, 7, 12, 13, 14, 19, 20, 21, 22, 23, 24, 25, 26, 28, 30],
            $Vp = [5, 7, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 28, 30],
            $Vq = [5, 7, 12, 19, 20, 21, 22, 23, 24, 25, 26, 28, 30],
            $Vr = [5, 7, 12, 25, 26, 28, 30],
            $Vs = [7, 28];
  
        var parser = {
          trace: function trace() {},
          yy: {},
          symbols_: {
            "error": 2,
            "expressions": 3,
            "e": 4,
            "EOF": 5,
            "expression_list": 6,
            ",": 7,
            "dot_name": 8,
            ".": 9,
            "NAME": 10,
            "[": 11,
            "]": 12,
            "+": 13,
            "-": 14,
            "*": 15,
            "/": 16,
            "%": 17,
            "^": 18,
            ">": 19,
            "<": 20,
            "==": 21,
            "!=": 22,
            ">=": 23,
            "<=": 24,
            "||": 25,
            "&&": 26,
            "(": 27,
            ")": 28,
            "?": 29,
            ":": 30,
            "true": 31,
            "false": 32,
            "QUOTED_STRING": 33,
            "NUMBER": 34,
            "HEXNUMBER": 35,
            "$accept": 0,
            "$end": 1
          },
          terminals_: {
            2: "error",
            5: "EOF",
            7: ",",
            9: ".",
            10: "NAME",
            11: "[",
            12: "]",
            13: "+",
            14: "-",
            15: "*",
            16: "/",
            17: "%",
            18: "^",
            19: ">",
            20: "<",
            21: "==",
            22: "!=",
            23: ">=",
            24: "<=",
            25: "||",
            26: "&&",
            27: "(",
            28: ")",
            29: "?",
            30: ":",
            31: "true",
            32: "false",
            33: "QUOTED_STRING",
            34: "NUMBER",
            35: "HEXNUMBER"
          },
          productions_: [0, [3, 2], [6, 3], [6, 1], [8, 3], [8, 4], [8, 1], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 2], [4, 3], [4, 7], [4, 1], [4, 1], [4, 1], [4, 3], [4, 4], [4, 1], [4, 1], [4, 1]],
          performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate
          /* action[1] */
          , $$
          /* vstack */
          , _$
          /* lstack */
          ) {
            /* this == yyval */
            var $0 = $$.length - 1;
  
            switch (yystate) {
              case 1:
                var result = $$[$0 - 1];
  
                if (typeof result === 'function') {
                  return result;
                } else {
                  return function (ctx) {
                    return result;
                  };
                }
  
              case 2:
              case 4:
                this.$ = $$[$0 - 2].concat([$$[$0]]);
                break;
  
              case 3:
              case 6:
                this.$ = [$$[$0]];
                break;
  
              case 5:
                this.$ = $$[$0 - 3].concat([$$[$0 - 1]]);
                break;
  
              case 7:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_add', [$$[$0 - 2], $$[$0]]);
                };
  
                break;
  
              case 8:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_subtract', [$$[$0 - 2], $$[$0]]);
                };
  
                break;
  
              case 9:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_multiply', [$$[$0 - 2], $$[$0]]);
                };
  
                break;
  
              case 10:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_divide', [$$[$0 - 2], $$[$0]]);
                };
  
                break;
  
              case 11:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_mod', [$$[$0 - 2], $$[$0]]);
                };
  
                break;
  
              case 12:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_pow', [$$[$0 - 2], $$[$0]]);
                };
  
                break;
  
              case 13:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_greaterThen', [$$[$0 - 2], $$[$0]]) == true;
                };
  
                break;
  
              case 14:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_lessThen', [$$[$0 - 2], $$[$0]]) == true;
                };
  
                break;
  
              case 15:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_equalTo', [$$[$0 - 2], $$[$0]]) == true;
                };
  
                break;
  
              case 16:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_equalTo', [$$[$0 - 2], $$[$0]]) == false;
                };
  
                break;
  
              case 17:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_lessThen', [$$[$0 - 2], $$[$0]]) == false;
                };
  
                break;
  
              case 18:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_greaterThen', [$$[$0 - 2], $$[$0]]) == false;
                };
  
                break;
  
              case 19:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_or', [$$[$0 - 2], $$[$0]]) == true;
                };
  
                break;
  
              case 20:
                this.$ = function (ctx) {
                  return runBuildInMethod(yy.parser, ctx, '_and', [$$[$0 - 2], $$[$0]]) == true;
                };
  
                break;
  
              case 21:
                this.$ = function (ctx) {
                  return -runFn($$[$0], ctx);
                };
  
                break;
  
              case 22:
                this.$ = function (ctx) {
                  return runFn($$[$0 - 1], ctx);
                };
  
                break;
  
              case 23:
                this.$ = function (ctx) {
                  return runFn($$[$0 - 5], ctx) ? runFn($$[$0 - 2], ctx) : runFn($$[$0], ctx);
                };
  
                break;
  
              case 24:
                this.$ = true;
                break;
  
              case 25:
                this.$ = false;
                break;
  
              case 26:
                this.$ = function (ctx) {
                  return yy.parser.getDotProperty(ctx, mapArgs($$[$0], ctx), 0);
                };
  
                break;
  
              case 27:
                this.$ = function (ctx) {
                  return runMethod(yy.parser, ctx, mapArgs($$[$0 - 2], ctx), undefined, true);
                };
  
                break;
  
              case 28:
                this.$ = function (ctx) {
                  return runMethod(yy.parser, ctx, mapArgs($$[$0 - 3], ctx), $$[$0 - 1], true);
                };
  
                break;
  
              case 29:
                this.$ = yytext.slice(1, -1);
                break;
  
              case 30:
                this.$ = Number(yytext);
                break;
  
              case 31:
                this.$ = parseInt(yytext, 16);
                break;
            }
          },
          table: [{
            3: 1,
            4: 2,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            1: [3]
          }, {
            5: [1, 12],
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd,
            19: $Ve,
            20: $Vf,
            21: $Vg,
            22: $Vh,
            23: $Vi,
            24: $Vj,
            25: $Vk,
            26: $Vl
          }, {
            4: 27,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 28,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, o($Vm, [2, 24]), o($Vm, [2, 25]), o($Vm, [2, 26], {
            9: [1, 30],
            11: [1, 31],
            27: [1, 29]
          }), o($Vm, [2, 29]), o($Vm, [2, 30]), o($Vm, [2, 31]), o($Vn, [2, 6]), {
            1: [2, 1]
          }, {
            4: 32,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 33,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 34,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 35,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 36,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 37,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 38,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 39,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 40,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 41,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 42,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 43,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 44,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            4: 45,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, o($Vm, [2, 21]), {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd,
            19: $Ve,
            20: $Vf,
            21: $Vg,
            22: $Vh,
            23: $Vi,
            24: $Vj,
            25: $Vk,
            26: $Vl,
            28: [1, 46]
          }, {
            4: 49,
            6: 48,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            28: [1, 47],
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, {
            10: [1, 50]
          }, {
            4: 51,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, o($Vo, [2, 7], {
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd
          }), o($Vo, [2, 8], {
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd
          }), o($Vp, [2, 9], {
            18: $Vd
          }), o($Vp, [2, 10], {
            18: $Vd
          }), o([5, 7, 12, 13, 14, 17, 19, 20, 21, 22, 23, 24, 25, 26, 28, 30], [2, 11], {
            15: $Va,
            16: $Vb,
            18: $Vd
          }), o($Vm, [2, 12]), o($Vq, [2, 13], {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd
          }), o($Vq, [2, 14], {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd
          }), o($Vq, [2, 15], {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd
          }), o($Vq, [2, 16], {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd
          }), o($Vq, [2, 17], {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd
          }), o($Vq, [2, 18], {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd
          }), o($Vr, [2, 19], {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd,
            19: $Ve,
            20: $Vf,
            21: $Vg,
            22: $Vh,
            23: $Vi,
            24: $Vj
          }), o($Vr, [2, 20], {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd,
            19: $Ve,
            20: $Vf,
            21: $Vg,
            22: $Vh,
            23: $Vi,
            24: $Vj
          }), o($Vm, [2, 22], {
            29: [1, 52]
          }), o($Vm, [2, 27]), {
            7: [1, 54],
            28: [1, 53]
          }, o($Vs, [2, 3], {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd,
            19: $Ve,
            20: $Vf,
            21: $Vg,
            22: $Vh,
            23: $Vi,
            24: $Vj,
            25: $Vk,
            26: $Vl
          }), o($Vn, [2, 4]), {
            12: [1, 55],
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd,
            19: $Ve,
            20: $Vf,
            21: $Vg,
            22: $Vh,
            23: $Vi,
            24: $Vj,
            25: $Vk,
            26: $Vl
          }, {
            4: 56,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, o($Vm, [2, 28]), {
            4: 57,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, o($Vn, [2, 5]), {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd,
            19: $Ve,
            20: $Vf,
            21: $Vg,
            22: $Vh,
            23: $Vi,
            24: $Vj,
            25: $Vk,
            26: $Vl,
            30: [1, 58]
          }, o($Vs, [2, 2], {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd,
            19: $Ve,
            20: $Vf,
            21: $Vg,
            22: $Vh,
            23: $Vi,
            24: $Vj,
            25: $Vk,
            26: $Vl
          }), {
            4: 59,
            8: 7,
            10: $V0,
            14: $V1,
            27: $V2,
            31: $V3,
            32: $V4,
            33: $V5,
            34: $V6,
            35: $V7
          }, o([5, 7, 12, 28, 30], [2, 23], {
            13: $V8,
            14: $V9,
            15: $Va,
            16: $Vb,
            17: $Vc,
            18: $Vd,
            19: $Ve,
            20: $Vf,
            21: $Vg,
            22: $Vh,
            23: $Vi,
            24: $Vj,
            25: $Vk,
            26: $Vl
          })],
          defaultActions: {
            12: [2, 1]
          },
          parseError: function parseError(str, hash) {
            if (hash.recoverable) {
              this.trace(str);
            } else {
              var error = new Error(str);
              error.hash = hash;
              throw error;
            }
          },
          parse: function parse(input) {
            var self = this,
                stack = [0],
                vstack = [null],
                lstack = [],
                table = this.table,
                yytext = '',
                yylineno = 0,
                yyleng = 0,
                TERROR = 2,
                EOF = 1;
            var args = lstack.slice.call(arguments, 1);
            var lexer = Object.create(this.lexer);
            var sharedState = {
              yy: {}
            };
  
            for (var k in this.yy) {
              if (Object.prototype.hasOwnProperty.call(this.yy, k)) {
                sharedState.yy[k] = this.yy[k];
              }
            }
  
            lexer.setInput(input, sharedState.yy);
            sharedState.yy.lexer = lexer;
            sharedState.yy.parser = this;
  
            if (typeof lexer.yylloc == 'undefined') {
              lexer.yylloc = {};
            }
  
            var yyloc = lexer.yylloc;
            lstack.push(yyloc);
            var ranges = lexer.options && lexer.options.ranges;
  
            if (typeof sharedState.yy.parseError === 'function') {
              this.parseError = sharedState.yy.parseError;
            } else {
              this.parseError = Object.getPrototypeOf(this).parseError;
            }
  
            var lex = function lex() {
              var token;
              token = lexer.lex() || EOF;
  
              if (typeof token !== 'number') {
                token = self.symbols_[token] || token;
              }
  
              return token;
            };
  
            var symbol,
                state,
                action,
                r,
                yyval = {},
                p,
                len,
                newState,
                expected;
  
            while (true) {
              state = stack[stack.length - 1];
  
              if (this.defaultActions[state]) {
                action = this.defaultActions[state];
              } else {
                if (symbol === null || typeof symbol == 'undefined') {
                  symbol = lex();
                }
  
                action = table[state] && table[state][symbol];
              }
  
              if (typeof action === 'undefined' || !action.length || !action[0]) {
                var errStr = '';
                expected = [];
  
                for (p in table[state]) {
                  if (this.terminals_[p] && p > TERROR) {
                    expected.push('\'' + this.terminals_[p] + '\'');
                  }
                }
  
                if (lexer.showPosition) {
                  errStr = 'Parse error on line ' + (yylineno + 1) + ':\n' + lexer.showPosition() + '\nExpecting ' + expected.join(', ') + ', got \'' + (this.terminals_[symbol] || symbol) + '\'';
                } else {
                  errStr = 'Parse error on line ' + (yylineno + 1) + ': Unexpected ' + (symbol == EOF ? 'end of input' : '\'' + (this.terminals_[symbol] || symbol) + '\'');
                }
  
                this.parseError(errStr, {
                  text: lexer.match,
                  token: this.terminals_[symbol] || symbol,
                  line: lexer.yylineno,
                  loc: yyloc,
                  expected: expected
                });
              }
  
              if (action[0] instanceof Array && action.length > 1) {
                throw new Error('Parse Error: multiple actions possible at state: ' + state + ', token: ' + symbol);
              }
  
              switch (action[0]) {
                case 1:
                  stack.push(symbol);
                  vstack.push(lexer.yytext);
                  lstack.push(lexer.yylloc);
                  stack.push(action[1]);
                  symbol = null;
  
                  {
                    yyleng = lexer.yyleng;
                    yytext = lexer.yytext;
                    yylineno = lexer.yylineno;
                    yyloc = lexer.yylloc;
                  }
  
                  break;
  
                case 2:
                  len = this.productions_[action[1]][1];
                  yyval.$ = vstack[vstack.length - len];
                  yyval._$ = {
                    first_line: lstack[lstack.length - (len || 1)].first_line,
                    last_line: lstack[lstack.length - 1].last_line,
                    first_column: lstack[lstack.length - (len || 1)].first_column,
                    last_column: lstack[lstack.length - 1].last_column
                  };
  
                  if (ranges) {
                    yyval._$.range = [lstack[lstack.length - (len || 1)].range[0], lstack[lstack.length - 1].range[1]];
                  }
  
                  r = this.performAction.apply(yyval, [yytext, yyleng, yylineno, sharedState.yy, action[1], vstack, lstack].concat(args));
  
                  if (typeof r !== 'undefined') {
                    return r;
                  }
  
                  if (len) {
                    stack = stack.slice(0, -1 * len * 2);
                    vstack = vstack.slice(0, -1 * len);
                    lstack = lstack.slice(0, -1 * len);
                  }
  
                  stack.push(this.productions_[action[1]][0]);
                  vstack.push(yyval.$);
                  lstack.push(yyval._$);
                  newState = table[stack[stack.length - 2]][stack[stack.length - 1]];
                  stack.push(newState);
                  break;
  
                case 3:
                  return true;
              }
            }
  
            return true;
          }
        };
  
        function runFn(arg, ctx) {
          return typeof arg === 'function' ? arg(ctx) : arg;
        }
  
        function mapArgs(args, ctx) {
          if (args) {
            args = args.map(function (arg) {
              return runFn(arg, ctx);
            });
          }
  
          return args;
        }
  
        function runBuildInMethod(self, ctx, name, args) {
          var callback = self[name];
          return callback.apply(self, mapArgs(args, ctx));
        }
  
        function runMethod(self, ctx, name, args, dotMode) {
          if (dotMode === undefined) {
            dotMode = false;
          }
  
          var callback, scope;
  
          if (dotMode) {
            var names = name.split('.');
            var callbackName = names.pop();
            scope = self.getDotProperty(ctx, names);
            callback = scope[callbackName];
          } else {
            callback = self.getProperty(ctx, name);
            scope = self;
          }
  
          if (callback == null) {
            callback = self.getProperty(ctx, 'defaultHandler');
            scope = self;
          }
  
          return callback.apply(scope, mapArgs(args, ctx));
        }
        /* generated by jison-lex 0.3.4 */
  
  
        var lexer = function () {
          var lexer = {
            EOF: 1,
            parseError: function parseError(str, hash) {
              if (this.yy.parser) {
                this.yy.parser.parseError(str, hash);
              } else {
                throw new Error(str);
              }
            },
            // resets the lexer, sets new input
            setInput: function setInput(input, yy) {
              this.yy = yy || this.yy || {};
              this._input = input;
              this._more = this._backtrack = this.done = false;
              this.yylineno = this.yyleng = 0;
              this.yytext = this.matched = this.match = '';
              this.conditionStack = ['INITIAL'];
              this.yylloc = {
                first_line: 1,
                first_column: 0,
                last_line: 1,
                last_column: 0
              };
  
              if (this.options.ranges) {
                this.yylloc.range = [0, 0];
              }
  
              this.offset = 0;
              return this;
            },
            // consumes and returns one char from the input
            input: function input() {
              var ch = this._input[0];
              this.yytext += ch;
              this.yyleng++;
              this.offset++;
              this.match += ch;
              this.matched += ch;
              var lines = ch.match(/(?:\r\n?|\n).*/g);
  
              if (lines) {
                this.yylineno++;
                this.yylloc.last_line++;
              } else {
                this.yylloc.last_column++;
              }
  
              if (this.options.ranges) {
                this.yylloc.range[1]++;
              }
  
              this._input = this._input.slice(1);
              return ch;
            },
            // unshifts one char (or a string) into the input
            unput: function unput(ch) {
              var len = ch.length;
              var lines = ch.split(/(?:\r\n?|\n)/g);
              this._input = ch + this._input;
              this.yytext = this.yytext.substr(0, this.yytext.length - len); //this.yyleng -= len;
  
              this.offset -= len;
              var oldLines = this.match.split(/(?:\r\n?|\n)/g);
              this.match = this.match.substr(0, this.match.length - 1);
              this.matched = this.matched.substr(0, this.matched.length - 1);
  
              if (lines.length - 1) {
                this.yylineno -= lines.length - 1;
              }
  
              var r = this.yylloc.range;
              this.yylloc = {
                first_line: this.yylloc.first_line,
                last_line: this.yylineno + 1,
                first_column: this.yylloc.first_column,
                last_column: lines ? (lines.length === oldLines.length ? this.yylloc.first_column : 0) + oldLines[oldLines.length - lines.length].length - lines[0].length : this.yylloc.first_column - len
              };
  
              if (this.options.ranges) {
                this.yylloc.range = [r[0], r[0] + this.yyleng - len];
              }
  
              this.yyleng = this.yytext.length;
              return this;
            },
            // When called from action, caches matched text and appends it on next action
            more: function more() {
              this._more = true;
              return this;
            },
            // When called from action, signals the lexer that this rule fails to match the input, so the next matching rule (regex) should be tested instead.
            reject: function reject() {
              if (this.options.backtrack_lexer) {
                this._backtrack = true;
              } else {
                return this.parseError('Lexical error on line ' + (this.yylineno + 1) + '. You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n' + this.showPosition(), {
                  text: "",
                  token: null,
                  line: this.yylineno
                });
              }
  
              return this;
            },
            // retain first n characters of the match
            less: function less(n) {
              this.unput(this.match.slice(n));
            },
            // displays already matched input, i.e. for error messages
            pastInput: function pastInput() {
              var past = this.matched.substr(0, this.matched.length - this.match.length);
              return (past.length > 20 ? '...' : '') + past.substr(-20).replace(/\n/g, "");
            },
            // displays upcoming input, i.e. for error messages
            upcomingInput: function upcomingInput() {
              var next = this.match;
  
              if (next.length < 20) {
                next += this._input.substr(0, 20 - next.length);
              }
  
              return (next.substr(0, 20) + (next.length > 20 ? '...' : '')).replace(/\n/g, "");
            },
            // displays the character position where the lexing error occurred, i.e. for error messages
            showPosition: function showPosition() {
              var pre = this.pastInput();
              var c = new Array(pre.length + 1).join("-");
              return pre + this.upcomingInput() + "\n" + c + "^";
            },
            // test the lexed token: return FALSE when not a match, otherwise return token
            test_match: function test_match(match, indexed_rule) {
              var token, lines, backup;
  
              if (this.options.backtrack_lexer) {
                // save context
                backup = {
                  yylineno: this.yylineno,
                  yylloc: {
                    first_line: this.yylloc.first_line,
                    last_line: this.last_line,
                    first_column: this.yylloc.first_column,
                    last_column: this.yylloc.last_column
                  },
                  yytext: this.yytext,
                  match: this.match,
                  matches: this.matches,
                  matched: this.matched,
                  yyleng: this.yyleng,
                  offset: this.offset,
                  _more: this._more,
                  _input: this._input,
                  yy: this.yy,
                  conditionStack: this.conditionStack.slice(0),
                  done: this.done
                };
  
                if (this.options.ranges) {
                  backup.yylloc.range = this.yylloc.range.slice(0);
                }
              }
  
              lines = match[0].match(/(?:\r\n?|\n).*/g);
  
              if (lines) {
                this.yylineno += lines.length;
              }
  
              this.yylloc = {
                first_line: this.yylloc.last_line,
                last_line: this.yylineno + 1,
                first_column: this.yylloc.last_column,
                last_column: lines ? lines[lines.length - 1].length - lines[lines.length - 1].match(/\r?\n?/)[0].length : this.yylloc.last_column + match[0].length
              };
              this.yytext += match[0];
              this.match += match[0];
              this.matches = match;
              this.yyleng = this.yytext.length;
  
              if (this.options.ranges) {
                this.yylloc.range = [this.offset, this.offset += this.yyleng];
              }
  
              this._more = false;
              this._backtrack = false;
              this._input = this._input.slice(match[0].length);
              this.matched += match[0];
              token = this.performAction.call(this, this.yy, this, indexed_rule, this.conditionStack[this.conditionStack.length - 1]);
  
              if (this.done && this._input) {
                this.done = false;
              }
  
              if (token) {
                return token;
              } else if (this._backtrack) {
                // recover context
                for (var k in backup) {
                  this[k] = backup[k];
                }
  
                return false; // rule action called reject() implying the next rule should be tested instead.
              }
  
              return false;
            },
            // return next match in input
            next: function next() {
              if (this.done) {
                return this.EOF;
              }
  
              if (!this._input) {
                this.done = true;
              }
  
              var token, match, tempMatch, index;
  
              if (!this._more) {
                this.yytext = '';
                this.match = '';
              }
  
              var rules = this._currentRules();
  
              for (var i = 0; i < rules.length; i++) {
                tempMatch = this._input.match(this.rules[rules[i]]);
  
                if (tempMatch && (!match || tempMatch[0].length > match[0].length)) {
                  match = tempMatch;
                  index = i;
  
                  if (this.options.backtrack_lexer) {
                    token = this.test_match(tempMatch, rules[i]);
  
                    if (token !== false) {
                      return token;
                    } else if (this._backtrack) {
                      match = false;
                      continue; // rule action called reject() implying a rule MISmatch.
                    } else {
                      // else: this is a lexer rule which consumes input without producing a token (e.g. whitespace)
                      return false;
                    }
                  } else if (!this.options.flex) {
                    break;
                  }
                }
              }
  
              if (match) {
                token = this.test_match(match, rules[index]);
  
                if (token !== false) {
                  return token;
                } // else: this is a lexer rule which consumes input without producing a token (e.g. whitespace)
  
  
                return false;
              }
  
              if (this._input === "") {
                return this.EOF;
              } else {
                return this.parseError('Lexical error on line ' + (this.yylineno + 1) + '. Unrecognized text.\n' + this.showPosition(), {
                  text: "",
                  token: null,
                  line: this.yylineno
                });
              }
            },
            // return next match that has a token
            lex: function lex() {
              var r = this.next();
  
              if (r) {
                return r;
              } else {
                return this.lex();
              }
            },
            // activates a new lexer condition state (pushes the new lexer condition state onto the condition stack)
            begin: function begin(condition) {
              this.conditionStack.push(condition);
            },
            // pop the previously active lexer condition state off the condition stack
            popState: function popState() {
              var n = this.conditionStack.length - 1;
  
              if (n > 0) {
                return this.conditionStack.pop();
              } else {
                return this.conditionStack[0];
              }
            },
            // produce the lexer rule set which is active for the currently active lexer condition state
            _currentRules: function _currentRules() {
              if (this.conditionStack.length && this.conditionStack[this.conditionStack.length - 1]) {
                return this.conditions[this.conditionStack[this.conditionStack.length - 1]].rules;
              } else {
                return this.conditions["INITIAL"].rules;
              }
            },
            // return the currently active lexer condition state; when an index argument is provided it produces the N-th previous condition state, if available
            topState: function topState(n) {
              n = this.conditionStack.length - 1 - Math.abs(n || 0);
  
              if (n >= 0) {
                return this.conditionStack[n];
              } else {
                return "INITIAL";
              }
            },
            // alias for begin(condition)
            pushState: function pushState(condition) {
              this.begin(condition);
            },
            // return the number of states currently on the stack
            stateStackSize: function stateStackSize() {
              return this.conditionStack.length;
            },
            options: {},
            performAction: function anonymous(yy, yy_, $avoiding_name_collisions, YY_START) {
  
              switch ($avoiding_name_collisions) {
                case 0:
                  /* skip whitespace */
                  break;
  
                case 1:
                  return 34;
  
                case 2:
                  return 35;
  
                case 3:
                  return 15;
  
                case 4:
                  return 16;
  
                case 5:
                  return 14;
  
                case 6:
                  return 13;
  
                case 7:
                  return 18;
  
                case 8:
                  return 17;
  
                case 9:
                  return ">=";
  
                case 10:
                  return "<=";
  
                case 11:
                  return 19;
  
                case 12:
                  return 20;
  
                case 13:
                  return "==";
  
                case 14:
                  return "!=";
  
                case 15:
                  return "||";
  
                case 16:
                  return "&&";
  
                case 17:
                  return "?";
  
                case 18:
                  return ":";
  
                case 19:
                  return 27;
  
                case 20:
                  return 28;
  
                case 21:
                  return 11;
  
                case 22:
                  return 12;
  
                case 23:
                  return 7;
  
                case 24:
                  return 9;
  
                case 25:
                  return 31;
  
                case 26:
                  return 32;
  
                case 27:
                  return 10;
  
                case 28:
                  return 33;
  
                case 29:
                  return 5;
  
                case 30:
                  return 'INVALID';
              }
            },
            rules: [/^(?:\s+)/, /^(?:[0-9]+(\.[0-9]+)?\b)/, /^(?:\b0x[0-9A-Fa-f]+\b)/, /^(?:\*)/, /^(?:\/)/, /^(?:-)/, /^(?:\+)/, /^(?:\^)/, /^(?:%)/, /^(?:>=)/, /^(?:<=)/, /^(?:>)/, /^(?:<)/, /^(?:==)/, /^(?:!=)/, /^(?:\|\|)/, /^(?:&&)/, /^(?:\?)/, /^(?::)/, /^(?:\()/, /^(?:\))/, /^(?:\[)/, /^(?:\])/, /^(?:,)/, /^(?:\.)/, /^(?:true\b)/, /^(?:false\b)/, /^(?:[_$a-zA-Z]+([_$0-9a-zA-Z]+)?)/, /^(?:"(\\.|[^\"\\])*"|'(\\.|[^\'\\])*')/, /^(?:$)/, /^(?:.)/],
            conditions: {
              "INITIAL": {
                "rules": [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30],
                "inclusive": true
              }
            }
          };
          return lexer;
        }();
  
        parser.lexer = lexer;
  
        function Parser() {
          this.yy = {};
        }
  
        Parser.prototype = parser;
        parser.Parser = Parser;
        return new Parser();
      }();
  
      if (typeof commonjsRequire !== 'undefined' && 'object' !== 'undefined') {
        exports.parser = parser;
        exports.Parser = parser.Parser;
  
        exports.parse = function () {
          return parser.parse.apply(parser, arguments);
        };
  
        exports.main = function commonjsMain(args) {
          if (!args[1]) {
            console.log('Usage: ' + args[0] + ' FILE');
            process.exit(1);
          }
  
          var source = require$$0.readFileSync(require$$1.normalize(args[1]), "utf8");
          return exports.parser.parse(source);
        };
  
        if (commonjsRequire.main === module) {
          exports.main(process.argv.slice(1));
        }
      }
    });
    parser_1.parser;
    parser_1.Parser;
    parser_1.parse;
    parser_1.main;
  
    var GetProperty = function GetProperty(context, key, defaultValue, dotMode) {
      if (dotMode === undefined) {
        dotMode = true;
      }
  
      if (!context || typeof context === 'number' || typeof context === 'string') {
        return defaultValue;
      } else if (key in context) {
        return context[key];
      } else if (dotMode && (Array.isArray(key) || key.indexOf('.') !== -1)) {
        var keys = Array.isArray(key) ? key : key.split('.');
        var value = context; //  Use for loop here so we can break early
  
        for (var i = 0; i < keys.length; i++) {
          var key = keys[i];
  
          if (key in value) {
            value = value[key];
          } else {
            value = defaultValue;
            break;
          }
        }
  
        return value;
      } else {
        return defaultValue;
      }
    };
  
    var FormulaParser = /*#__PURE__*/function (_parser$Parser) {
      _inherits(FormulaParser, _parser$Parser);
  
      var _super = _createSuper(FormulaParser);
  
      function FormulaParser() {
        _classCallCheck(this, FormulaParser);
  
        return _super.apply(this, arguments);
      }
  
      _createClass(FormulaParser, [{
        key: "getProperty",
        value: function getProperty(context, name, defaultValue) {
          var value = GetProperty(context, name, undefined, false);
  
          if (value !== undefined) {
            return value;
          }
  
          return GetProperty(this, name, defaultValue, false);
        }
      }, {
        key: "getDotProperty",
        value: function getDotProperty(context, name, defaultValue) {
          var value = GetProperty(context, name, undefined, true);
  
          if (value !== undefined) {
            return value;
          }
  
          return GetProperty(this, name, defaultValue, true);
        }
      }, {
        key: "_add",
        value: function _add(a, b) {
          return a + b;
        }
      }, {
        key: "_subtract",
        value: function _subtract(a, b) {
          return a - b;
        }
      }, {
        key: "_multiply",
        value: function _multiply(a, b) {
          return a * b;
        }
      }, {
        key: "_divide",
        value: function _divide(a, b) {
          return a / b;
        }
      }, {
        key: "_mod",
        value: function _mod(a, b) {
          return a % b;
        }
      }, {
        key: "_pow",
        value: function _pow(a, b) {
          return Math.pow(a, b);
        }
      }, {
        key: "_greaterThen",
        value: function _greaterThen(a, b) {
          return a > b;
        }
      }, {
        key: "_lessThen",
        value: function _lessThen(a, b) {
          return a < b;
        }
      }, {
        key: "_equalTo",
        value: function _equalTo(a, b) {
          return a == b;
        }
      }, {
        key: "_or",
        value: function _or(a, b) {
          return a || b;
        }
      }, {
        key: "_and",
        value: function _and(a, b) {
          return a && b;
        }
      }, {
        key: "defaultHandler",
        value: function defaultHandler(name, args) {
          return 0;
        }
      }, {
        key: "compile",
        value: function compile(input) {
          return this.parse(input);
        }
      }, {
        key: "exec",
        value: function exec(input, data) {
          if (typeof input === 'string') {
            input = this.compile(input);
          }
  
          return input(data);
        }
      }], [{
        key: "GetProperty",
        value: function GetProperty$1(context, key, defaultValue, dotMode) {
          return GetProperty(context, key, defaultValue, dotMode);
        }
      }]);
  
      return FormulaParser;
    }(parser_1.Parser);
  
    var parser = new FormulaParser();
  
    var Compile = function Compile(expression) {
      return parser.compile(expression);
    };
  
    var Achievements = /*#__PURE__*/function (_Base) {
      _inherits(Achievements, _Base);
  
      var _super = _createSuper(Achievements);
  
      function Achievements() {
        _classCallCheck(this, Achievements);
  
        return _super.apply(this, arguments);
      }
  
      _createClass(Achievements, [{
        key: "loadYML",
        value: function loadYML(ymlString) {
          this.clear();
          var doc = ParseYaml(ymlString);
  
          if (!doc) {
            return this;
          }
  
          for (var levelName in doc) {
            var levelAchevements = doc[levelName];
  
            for (var achievementName in levelAchevements) {
              this.add(levelName, achievementName, Compile(levelAchevements[achievementName]));
            }
          }
  
          return this;
        }
      }]);
  
      return Achievements;
    }(Achievements$1);
  
    var AchievementsPlugin = /*#__PURE__*/function (_Phaser$Plugins$BaseP) {
      _inherits(AchievementsPlugin, _Phaser$Plugins$BaseP);
  
      var _super = _createSuper(AchievementsPlugin);
  
      function AchievementsPlugin(pluginManager) {
        _classCallCheck(this, AchievementsPlugin);
  
        return _super.call(this, pluginManager);
      }
  
      _createClass(AchievementsPlugin, [{
        key: "start",
        value: function start() {
          var eventEmitter = this.game.events;
          eventEmitter.on('destroy', this.destroy, this);
        }
      }, {
        key: "add",
        value: function add() {
          return new Achievements();
        }
      }]);
  
      return AchievementsPlugin;
    }(Phaser.Plugins.BasePlugin);
  
    return AchievementsPlugin;
  
  }));
  