import { l as _inherits, m as _createSuper, b as _classCallCheck, r as _possibleConstructorReturn, a as _createClass, h as _createForOfIteratorHelper, e as _slicedToArray, n as _get, o as _getPrototypeOf, _ as _typeof, T as Type, c as _defineProperty, p as _assertThisInitialized } from './errors-2634d01a.js';
import { P as Pair, Y as YAMLSeq, S as Scalar, d as YAMLMap, j as createPair, e as createNode, c as stringifyString, s as strOptions, n as nullOptions, a as boolOptions, i as intOptions, k as stringifyNumber, b as binaryOptions, t as toJS, l as findPair } from './stringifyNumber-d8af95b1.js';

var MERGE_KEY = '<<';
var Merge = /*#__PURE__*/function (_Pair) {
  _inherits(Merge, _Pair);

  var _super = _createSuper(Merge);

  function Merge(pair) {
    var _this;

    _classCallCheck(this, Merge);

    if (pair instanceof Pair) {
      var seq = pair.value;

      if (!(seq instanceof YAMLSeq)) {
        seq = new YAMLSeq();
        seq.items.push(pair.value);
        seq.range = pair.value.range;
      }

      _this = _super.call(this, pair.key, seq);
      _this.range = pair.range;
    } else {
      _this = _super.call(this, new Scalar(MERGE_KEY), new YAMLSeq());
    }

    _this.type = Pair.Type.MERGE_PAIR;
    return _possibleConstructorReturn(_this);
  } // If the value associated with a merge key is a single mapping node, each of
  // its key/value pairs is inserted into the current mapping, unless the key
  // already exists in it. If the value associated with the merge key is a
  // sequence, then this sequence is expected to contain mapping nodes and each
  // of these nodes is merged in turn according to its order in the sequence.
  // Keys in mapping nodes earlier in the sequence override keys specified in
  // later mapping nodes. -- http://yaml.org/type/merge.html


  _createClass(Merge, [{
    key: "addToJSMap",
    value: function addToJSMap(ctx, map) {
      var _iterator = _createForOfIteratorHelper(this.value.items),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var source = _step.value.source;
          if (!(source instanceof YAMLMap)) throw new Error('Merge sources must be maps');
          var srcMap = source.toJSON(null, ctx, Map);

          var _iterator2 = _createForOfIteratorHelper(srcMap),
              _step2;

          try {
            for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
              var _step2$value = _slicedToArray(_step2.value, 2),
                  key = _step2$value[0],
                  value = _step2$value[1];

              if (map instanceof Map) {
                if (!map.has(key)) map.set(key, value);
              } else if (map instanceof Set) {
                map.add(key);
              } else if (!Object.prototype.hasOwnProperty.call(map, key)) {
                Object.defineProperty(map, key, {
                  value: value,
                  writable: true,
                  enumerable: true,
                  configurable: true
                });
              }
            }
          } catch (err) {
            _iterator2.e(err);
          } finally {
            _iterator2.f();
          }
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      return map;
    }
  }, {
    key: "toString",
    value: function toString(ctx, onComment) {
      var seq = this.value;
      if (seq.items.length > 1) return _get(_getPrototypeOf(Merge.prototype), "toString", this).call(this, ctx, onComment);
      this.value = seq.items[0];

      var str = _get(_getPrototypeOf(Merge.prototype), "toString", this).call(this, ctx, onComment);

      this.value = seq;
      return str;
    }
  }]);

  return Merge;
}(Pair);

function createMap(schema, obj, ctx) {
  var keepUndefined = ctx.keepUndefined,
      replacer = ctx.replacer;
  var map = new YAMLMap(schema);

  var add = function add(key, value) {
    if (typeof replacer === 'function') value = replacer.call(obj, key, value);else if (Array.isArray(replacer) && !replacer.includes(key)) return;
    if (value !== undefined || keepUndefined) map.items.push(createPair(key, value, ctx));
  };

  if (obj instanceof Map) {
    var _iterator = _createForOfIteratorHelper(obj),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var _step$value = _slicedToArray(_step.value, 2),
            key = _step$value[0],
            value = _step$value[1];

        add(key, value);
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }
  } else if (obj && _typeof(obj) === 'object') {
    for (var _i = 0, _Object$keys = Object.keys(obj); _i < _Object$keys.length; _i++) {
      var _key = _Object$keys[_i];
      add(_key, obj[_key]);
    }
  }

  if (typeof schema.sortMapEntries === 'function') {
    map.items.sort(schema.sortMapEntries);
  }

  return map;
}

var map = {
  createNode: createMap,
  default: true,
  nodeClass: YAMLMap,
  tag: 'tag:yaml.org,2002:map',
  resolve: function resolve(map) {
    return map;
  }
};

function createSeq(schema, obj, ctx) {
  var replacer = ctx.replacer;
  var seq = new YAMLSeq(schema);

  if (obj && obj[Symbol.iterator]) {
    var i = 0;

    var _iterator = _createForOfIteratorHelper(obj),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var it = _step.value;

        if (typeof replacer === 'function') {
          var key = obj instanceof Set ? it : String(i++);
          it = replacer.call(obj, key, it);
        }

        seq.items.push(createNode(it, null, ctx));
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }
  }

  return seq;
}

var seq = {
  createNode: createSeq,
  default: true,
  nodeClass: YAMLSeq,
  tag: 'tag:yaml.org,2002:seq',
  resolve: function resolve(seq) {
    return seq;
  }
};

var string = {
  identify: function identify(value) {
    return typeof value === 'string';
  },
  default: true,
  tag: 'tag:yaml.org,2002:str',
  resolve: function resolve(str) {
    return str;
  },
  stringify: function stringify(item, ctx, onComment, onChompKeep) {
    ctx = Object.assign({
      actualString: true
    }, ctx);
    return stringifyString(item, ctx, onComment, onChompKeep);
  },
  options: strOptions
};

var failsafe = [map, seq, string];

/* global BigInt */

var intIdentify = function intIdentify(value) {
  return typeof value === 'bigint' || Number.isInteger(value);
};

var intResolve = function intResolve(src, offset, radix) {
  return intOptions.asBigInt ? BigInt(src) : parseInt(src.substring(offset), radix);
};

function intStringify(node, radix, prefix) {
  var value = node.value;
  if (intIdentify(value) && value >= 0) return prefix + value.toString(radix);
  return stringifyNumber(node);
}

var nullObj = {
  identify: function identify(value) {
    return value == null;
  },
  createNode: function createNode(schema, value, ctx) {
    return ctx.wrapScalars ? new Scalar(null) : null;
  },
  default: true,
  tag: 'tag:yaml.org,2002:null',
  test: /^(?:~|[Nn]ull|NULL)?$/,
  resolve: function resolve(str) {
    var node = new Scalar(null);
    node.sourceStr = str;
    return node;
  },
  options: nullOptions,
  stringify: function stringify(_ref) {
    var sourceStr = _ref.sourceStr;
    return sourceStr !== null && sourceStr !== void 0 ? sourceStr : nullOptions.nullStr;
  }
};
var boolObj = {
  identify: function identify(value) {
    return typeof value === 'boolean';
  },
  default: true,
  tag: 'tag:yaml.org,2002:bool',
  test: /^(?:[Tt]rue|TRUE|[Ff]alse|FALSE)$/,
  resolve: function resolve(str) {
    return str[0] === 't' || str[0] === 'T';
  },
  options: boolOptions,
  stringify: function stringify(_ref2) {
    var value = _ref2.value;
    return value ? boolOptions.trueStr : boolOptions.falseStr;
  }
};
var octObj = {
  identify: function identify(value) {
    return intIdentify(value) && value >= 0;
  },
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'OCT',
  test: /^0o[0-7]+$/,
  resolve: function resolve(str) {
    return intResolve(str, 2, 8);
  },
  options: intOptions,
  stringify: function stringify(node) {
    return intStringify(node, 8, '0o');
  }
};
var intObj = {
  identify: intIdentify,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  test: /^[-+]?[0-9]+$/,
  resolve: function resolve(str) {
    return intResolve(str, 0, 10);
  },
  options: intOptions,
  stringify: stringifyNumber
};
var hexObj = {
  identify: function identify(value) {
    return intIdentify(value) && value >= 0;
  },
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'HEX',
  test: /^0x[0-9a-fA-F]+$/,
  resolve: function resolve(str) {
    return intResolve(str, 2, 16);
  },
  options: intOptions,
  stringify: function stringify(node) {
    return intStringify(node, 16, '0x');
  }
};
var nanObj = {
  identify: function identify(value) {
    return typeof value === 'number';
  },
  default: true,
  tag: 'tag:yaml.org,2002:float',
  test: /^(?:[-+]?\.(?:inf|Inf|INF|nan|NaN|NAN))$/,
  resolve: function resolve(str) {
    return str.slice(-3).toLowerCase() === 'nan' ? NaN : str[0] === '-' ? Number.NEGATIVE_INFINITY : Number.POSITIVE_INFINITY;
  },
  stringify: stringifyNumber
};
var expObj = {
  identify: function identify(value) {
    return typeof value === 'number';
  },
  default: true,
  tag: 'tag:yaml.org,2002:float',
  format: 'EXP',
  test: /^[-+]?(?:\.[0-9]+|[0-9]+(?:\.[0-9]*)?)[eE][-+]?[0-9]+$/,
  resolve: function resolve(str) {
    return parseFloat(str);
  },
  stringify: function stringify(_ref3) {
    var value = _ref3.value;
    return Number(value).toExponential();
  }
};
var floatObj = {
  identify: function identify(value) {
    return typeof value === 'number';
  },
  default: true,
  tag: 'tag:yaml.org,2002:float',
  test: /^[-+]?(?:\.[0-9]+|[0-9]+\.[0-9]*)$/,
  resolve: function resolve(str) {
    var node = new Scalar(parseFloat(str));
    var dot = str.indexOf('.');
    if (dot !== -1 && str[str.length - 1] === '0') node.minFractionDigits = str.length - dot - 1;
    return node;
  },
  stringify: stringifyNumber
};
var core = failsafe.concat([nullObj, boolObj, octObj, intObj, hexObj, nanObj, expObj, floatObj]);

/* global BigInt */

var intIdentify$1 = function intIdentify(value) {
  return typeof value === 'bigint' || Number.isInteger(value);
};

var stringifyJSON = function stringifyJSON(_ref) {
  var value = _ref.value;
  return JSON.stringify(value);
};

var json = [map, seq, {
  identify: function identify(value) {
    return typeof value === 'string';
  },
  default: true,
  tag: 'tag:yaml.org,2002:str',
  resolve: function resolve(str) {
    return str;
  },
  stringify: stringifyJSON
}, {
  identify: function identify(value) {
    return value == null;
  },
  createNode: function createNode(schema, value, ctx) {
    return ctx.wrapScalars ? new Scalar(null) : null;
  },
  default: true,
  tag: 'tag:yaml.org,2002:null',
  test: /^null$/,
  resolve: function resolve() {
    return null;
  },
  stringify: stringifyJSON
}, {
  identify: function identify(value) {
    return typeof value === 'boolean';
  },
  default: true,
  tag: 'tag:yaml.org,2002:bool',
  test: /^true|false$/,
  resolve: function resolve(str) {
    return str === 'true';
  },
  stringify: stringifyJSON
}, {
  identify: intIdentify$1,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  test: /^-?(?:0|[1-9][0-9]*)$/,
  resolve: function resolve(str) {
    return intOptions.asBigInt ? BigInt(str) : parseInt(str, 10);
  },
  stringify: function stringify(_ref2) {
    var value = _ref2.value;
    return intIdentify$1(value) ? value.toString() : JSON.stringify(value);
  }
}, {
  identify: function identify(value) {
    return typeof value === 'number';
  },
  default: true,
  tag: 'tag:yaml.org,2002:float',
  test: /^-?(?:0|[1-9][0-9]*)(?:\.[0-9]*)?(?:[eE][-+]?[0-9]+)?$/,
  resolve: function resolve(str) {
    return parseFloat(str);
  },
  stringify: stringifyJSON
}, {
  default: true,
  test: /^/,
  resolve: function resolve(str, onError) {
    onError("Unresolved plain scalar ".concat(JSON.stringify(str)));
    return str;
  }
}];

/* global atob, btoa, Buffer */
var binary = {
  identify: function identify(value) {
    return value instanceof Uint8Array;
  },
  // Buffer inherits from Uint8Array
  default: false,
  tag: 'tag:yaml.org,2002:binary',

  /**
   * Returns a Buffer in node and an Uint8Array in browsers
   *
   * To use the resulting buffer as an image, you'll want to do something like:
   *
   *   const blob = new Blob([buffer], { type: 'image/jpeg' })
   *   document.querySelector('#photo').src = URL.createObjectURL(blob)
   */
  resolve: function resolve(src, onError) {
    if (typeof Buffer === 'function') {
      return Buffer.from(src, 'base64');
    } else if (typeof atob === 'function') {
      // On IE 11, atob() can't handle newlines
      var str = atob(src.replace(/[\n\r]/g, ''));
      var buffer = new Uint8Array(str.length);

      for (var i = 0; i < str.length; ++i) {
        buffer[i] = str.charCodeAt(i);
      }

      return buffer;
    } else {
      onError('This environment does not support reading binary tags; either Buffer or atob is required');
      return src;
    }
  },
  options: binaryOptions,
  stringify: function stringify(_ref, ctx, onComment, onChompKeep) {
    var comment = _ref.comment,
        type = _ref.type,
        value = _ref.value;
    var src;

    if (typeof Buffer === 'function') {
      src = value instanceof Buffer ? value.toString('base64') : Buffer.from(value.buffer).toString('base64');
    } else if (typeof btoa === 'function') {
      var s = '';

      for (var i = 0; i < value.length; ++i) {
        s += String.fromCharCode(value[i]);
      }

      src = btoa(s);
    } else {
      throw new Error('This environment does not support writing binary tags; either Buffer or btoa is required');
    }

    if (!type) type = binaryOptions.defaultType;

    if (type === Type.QUOTE_DOUBLE) {
      value = src;
    } else {
      var lineWidth = binaryOptions.lineWidth;
      var n = Math.ceil(src.length / lineWidth);
      var lines = new Array(n);

      for (var _i = 0, o = 0; _i < n; ++_i, o += lineWidth) {
        lines[_i] = src.substr(o, lineWidth);
      }

      value = lines.join(type === Type.BLOCK_LITERAL ? '\n' : ' ');
    }

    return stringifyString({
      comment: comment,
      type: type,
      value: value
    }, ctx, onComment, onChompKeep);
  }
};

function parsePairs(seq, onError) {
  if (seq instanceof YAMLSeq) {
    for (var i = 0; i < seq.items.length; ++i) {
      var item = seq.items[i];
      if (item instanceof Pair) continue;else if (item instanceof YAMLMap) {
        if (item.items.length > 1) onError('Each pair must have its own sequence indicator');
        var pair = item.items[0] || new Pair();
        if (item.commentBefore) pair.commentBefore = pair.commentBefore ? "".concat(item.commentBefore, "\n").concat(pair.commentBefore) : item.commentBefore;
        if (item.comment) pair.comment = pair.comment ? "".concat(item.comment, "\n").concat(pair.comment) : item.comment;
        item = pair;
      }
      seq.items[i] = item instanceof Pair ? item : new Pair(item);
    }
  } else onError('Expected a sequence for this tag');

  return seq;
}
function createPairs(schema, iterable, ctx) {
  var replacer = ctx.replacer;
  var pairs = new YAMLSeq(schema);
  pairs.tag = 'tag:yaml.org,2002:pairs';
  var i = 0;

  var _iterator = _createForOfIteratorHelper(iterable),
      _step;

  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var it = _step.value;
      if (typeof replacer === 'function') it = replacer.call(iterable, String(i++), it);
      var key = void 0,
          value = void 0;

      if (Array.isArray(it)) {
        if (it.length === 2) {
          key = it[0];
          value = it[1];
        } else throw new TypeError("Expected [key, value] tuple: ".concat(it));
      } else if (it && it instanceof Object) {
        var keys = Object.keys(it);

        if (keys.length === 1) {
          key = keys[0];
          value = it[key];
        } else throw new TypeError("Expected { key: value } tuple: ".concat(it));
      } else {
        key = it;
      }

      pairs.items.push(createPair(key, value, ctx));
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }

  return pairs;
}
var pairs = {
  default: false,
  tag: 'tag:yaml.org,2002:pairs',
  resolve: parsePairs,
  createNode: createPairs
};

var YAMLOMap = /*#__PURE__*/function (_YAMLSeq) {
  _inherits(YAMLOMap, _YAMLSeq);

  var _super = _createSuper(YAMLOMap);

  function YAMLOMap() {
    var _this;

    _classCallCheck(this, YAMLOMap);

    _this = _super.call(this);

    _defineProperty(_assertThisInitialized(_this), "add", YAMLMap.prototype.add.bind(_assertThisInitialized(_this)));

    _defineProperty(_assertThisInitialized(_this), "delete", YAMLMap.prototype.delete.bind(_assertThisInitialized(_this)));

    _defineProperty(_assertThisInitialized(_this), "get", YAMLMap.prototype.get.bind(_assertThisInitialized(_this)));

    _defineProperty(_assertThisInitialized(_this), "has", YAMLMap.prototype.has.bind(_assertThisInitialized(_this)));

    _defineProperty(_assertThisInitialized(_this), "set", YAMLMap.prototype.set.bind(_assertThisInitialized(_this)));

    _this.tag = YAMLOMap.tag;
    return _this;
  }

  _createClass(YAMLOMap, [{
    key: "toJSON",
    value: function toJSON(_, ctx) {
      var map = new Map();
      if (ctx && ctx.onCreate) ctx.onCreate(map);

      var _iterator = _createForOfIteratorHelper(this.items),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var pair = _step.value;
          var key = void 0,
              value = void 0;

          if (pair instanceof Pair) {
            key = toJS(pair.key, '', ctx);
            value = toJS(pair.value, key, ctx);
          } else {
            key = toJS(pair, '', ctx);
          }

          if (map.has(key)) throw new Error('Ordered maps must not include duplicate keys');
          map.set(key, value);
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      return map;
    }
  }]);

  return YAMLOMap;
}(YAMLSeq);

_defineProperty(YAMLOMap, "tag", 'tag:yaml.org,2002:omap');

function parseOMap(seq, onError) {
  var pairs = parsePairs(seq, onError);
  var seenKeys = [];

  var _iterator2 = _createForOfIteratorHelper(pairs.items),
      _step2;

  try {
    for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
      var key = _step2.value.key;

      if (key instanceof Scalar) {
        if (seenKeys.includes(key.value)) {
          onError("Ordered maps must not include duplicate keys: ".concat(key.value));
        } else {
          seenKeys.push(key.value);
        }
      }
    }
  } catch (err) {
    _iterator2.e(err);
  } finally {
    _iterator2.f();
  }

  return Object.assign(new YAMLOMap(), pairs);
}

function createOMap(schema, iterable, ctx) {
  var pairs = createPairs(schema, iterable, ctx);
  var omap = new YAMLOMap();
  omap.items = pairs.items;
  return omap;
}

var omap = {
  identify: function identify(value) {
    return value instanceof Map;
  },
  nodeClass: YAMLOMap,
  default: false,
  tag: 'tag:yaml.org,2002:omap',
  resolve: parseOMap,
  createNode: createOMap
};

var YAMLSet = /*#__PURE__*/function (_YAMLMap) {
  _inherits(YAMLSet, _YAMLMap);

  var _super = _createSuper(YAMLSet);

  function YAMLSet(schema) {
    var _this;

    _classCallCheck(this, YAMLSet);

    _this = _super.call(this, schema);
    _this.tag = YAMLSet.tag;
    return _this;
  }

  _createClass(YAMLSet, [{
    key: "add",
    value: function add(key) {
      var pair = key instanceof Pair ? key : new Pair(key);
      var prev = findPair(this.items, pair.key);
      if (!prev) this.items.push(pair);
    }
  }, {
    key: "get",
    value: function get(key, keepPair) {
      var pair = findPair(this.items, key);
      return !keepPair && pair instanceof Pair ? pair.key instanceof Scalar ? pair.key.value : pair.key : pair;
    }
  }, {
    key: "set",
    value: function set(key, value) {
      if (typeof value !== 'boolean') throw new Error("Expected boolean value for set(key, value) in a YAML set, not ".concat(_typeof(value)));
      var prev = findPair(this.items, key);

      if (prev && !value) {
        this.items.splice(this.items.indexOf(prev), 1);
      } else if (!prev && value) {
        this.items.push(new Pair(key));
      }
    }
  }, {
    key: "toJSON",
    value: function toJSON(_, ctx) {
      return _get(_getPrototypeOf(YAMLSet.prototype), "toJSON", this).call(this, _, ctx, Set);
    }
  }, {
    key: "toString",
    value: function toString(ctx, onComment, onChompKeep) {
      if (!ctx) return JSON.stringify(this);
      if (this.hasAllNullValues()) return _get(_getPrototypeOf(YAMLSet.prototype), "toString", this).call(this, ctx, onComment, onChompKeep);else throw new Error('Set items must all have null values');
    }
  }]);

  return YAMLSet;
}(YAMLMap);

_defineProperty(YAMLSet, "tag", 'tag:yaml.org,2002:set');

function parseSet(map, onError) {
  if (map instanceof YAMLMap) {
    if (map.hasAllNullValues()) return Object.assign(new YAMLSet(), map);else onError('Set items must all have null values');
  } else onError('Expected a mapping for this tag');

  return map;
}

function createSet(schema, iterable, ctx) {
  var replacer = ctx.replacer;
  var set = new YAMLSet(schema);

  var _iterator = _createForOfIteratorHelper(iterable),
      _step;

  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var value = _step.value;
      if (typeof replacer === 'function') value = replacer.call(iterable, value, value);
      set.items.push(createPair(value, null, ctx));
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }

  return set;
}

var set = {
  identify: function identify(value) {
    return value instanceof Set;
  },
  nodeClass: YAMLSet,
  default: false,
  tag: 'tag:yaml.org,2002:set',
  resolve: parseSet,
  createNode: createSet
};

var parseSexagesimal = function parseSexagesimal(str, isInt) {
  var sign = str[0];
  var parts = sign === '-' || sign === '+' ? str.substring(1) : str;

  var num = function num(n) {
    return isInt && intOptions.asBigInt ? BigInt(n) : Number(n);
  };

  var res = parts.replace(/_/g, '').split(':').reduce(function (res, p) {
    return res * num(60) + num(p);
  }, num(0));
  return sign === '-' ? num(-1) * res : res;
}; // hhhh:mm:ss.sss


var stringifySexagesimal = function stringifySexagesimal(_ref) {
  var value = _ref.value;

  var num = function num(n) {
    return n;
  };

  if (typeof value === 'bigint') num = function num(n) {
    return BigInt(n);
  };else if (isNaN(value) || !isFinite(value)) return stringifyNumber(value);
  var sign = '';

  if (value < 0) {
    sign = '-';
    value *= num(-1);
  }

  var _60 = num(60);

  var parts = [value % _60]; // seconds, including ms

  if (value < 60) {
    parts.unshift(0); // at least one : is required
  } else {
    value = (value - parts[0]) / _60;
    parts.unshift(value % _60); // minutes

    if (value >= 60) {
      value = (value - parts[0]) / _60;
      parts.unshift(value); // hours
    }
  }

  return sign + parts.map(function (n) {
    return n < 10 ? '0' + String(n) : String(n);
  }).join(':').replace(/000000\d*$/, '') // % 60 may introduce error
  ;
};

var intTime = {
  identify: function identify(value) {
    return typeof value === 'bigint' || Number.isInteger(value);
  },
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'TIME',
  test: /^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+$/,
  resolve: function resolve(str) {
    return parseSexagesimal(str, true);
  },
  stringify: stringifySexagesimal
};
var floatTime = {
  identify: function identify(value) {
    return typeof value === 'number';
  },
  default: true,
  tag: 'tag:yaml.org,2002:float',
  format: 'TIME',
  test: /^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\.[0-9_]*$/,
  resolve: function resolve(str) {
    return parseSexagesimal(str, false);
  },
  stringify: stringifySexagesimal
};
var timestamp = {
  identify: function identify(value) {
    return value instanceof Date;
  },
  default: true,
  tag: 'tag:yaml.org,2002:timestamp',
  // If the time zone is omitted, the timestamp is assumed to be specified in UTC. The time part
  // may be omitted altogether, resulting in a date format. In such a case, the time part is
  // assumed to be 00:00:00Z (start of day, UTC).
  test: RegExp('^([0-9]{4})-([0-9]{1,2})-([0-9]{1,2})' + // YYYY-Mm-Dd
  '(?:' + // time is optional
  '(?:t|T|[ \\t]+)' + // t | T | whitespace
  '([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2}(\\.[0-9]+)?)' + // Hh:Mm:Ss(.ss)?
  '(?:[ \\t]*(Z|[-+][012]?[0-9](?::[0-9]{2})?))?' + // Z | +5 | -03:30
  ')?$'),
  resolve: function resolve(str) {
    var _str$match = str.match(timestamp.test),
        _str$match2 = _slicedToArray(_str$match, 9),
        year = _str$match2[1],
        month = _str$match2[2],
        day = _str$match2[3],
        hour = _str$match2[4],
        minute = _str$match2[5],
        second = _str$match2[6],
        millisec = _str$match2[7],
        tz = _str$match2[8];

    if (millisec) millisec = (millisec + '00').substr(1, 3);
    var date = Date.UTC(year, month - 1, day, hour || 0, minute || 0, second || 0, millisec || 0);

    if (tz && tz !== 'Z') {
      var d = parseSexagesimal(tz, false);
      if (Math.abs(d) < 30) d *= 60;
      date -= 60000 * d;
    }

    return new Date(date);
  },
  stringify: function stringify(_ref2) {
    var value = _ref2.value;
    return value.toISOString().replace(/((T00:00)?:00)?\.000Z$/, '');
  }
};

/* global BigInt */

var boolStringify = function boolStringify(_ref) {
  var value = _ref.value;
  return value ? boolOptions.trueStr : boolOptions.falseStr;
};

var intIdentify$2 = function intIdentify(value) {
  return typeof value === 'bigint' || Number.isInteger(value);
};

function intResolve$1(str, offset, radix) {
  var sign = str[0];
  if (sign === '-' || sign === '+') offset += 1;
  str = str.substring(offset).replace(/_/g, '');

  if (intOptions.asBigInt) {
    switch (radix) {
      case 2:
        str = "0b".concat(str);
        break;

      case 8:
        str = "0o".concat(str);
        break;

      case 16:
        str = "0x".concat(str);
        break;
    }

    var _n = BigInt(str);

    return sign === '-' ? BigInt(-1) * _n : _n;
  }

  var n = parseInt(str, radix);
  return sign === '-' ? -1 * n : n;
}

function intStringify$1(node, radix, prefix) {
  var value = node.value;

  if (intIdentify$2(value)) {
    var str = value.toString(radix);
    return value < 0 ? '-' + prefix + str.substr(1) : prefix + str;
  }

  return stringifyNumber(node);
}

var yaml11 = failsafe.concat([{
  identify: function identify(value) {
    return value == null;
  },
  createNode: function createNode(schema, value, ctx) {
    return ctx.wrapScalars ? new Scalar(null) : null;
  },
  default: true,
  tag: 'tag:yaml.org,2002:null',
  test: /^(?:~|[Nn]ull|NULL)?$/,
  resolve: function resolve(str) {
    var node = new Scalar(null);
    node.sourceStr = str;
    return node;
  },
  options: nullOptions,
  stringify: function stringify(_ref2) {
    var sourceStr = _ref2.sourceStr;
    return sourceStr !== null && sourceStr !== void 0 ? sourceStr : nullOptions.nullStr;
  }
}, {
  identify: function identify(value) {
    return typeof value === 'boolean';
  },
  default: true,
  tag: 'tag:yaml.org,2002:bool',
  test: /^(?:Y|y|[Yy]es|YES|[Tt]rue|TRUE|[Oo]n|ON)$/,
  resolve: function resolve() {
    return true;
  },
  options: boolOptions,
  stringify: boolStringify
}, {
  identify: function identify(value) {
    return typeof value === 'boolean';
  },
  default: true,
  tag: 'tag:yaml.org,2002:bool',
  test: /^(?:N|n|[Nn]o|NO|[Ff]alse|FALSE|[Oo]ff|OFF)$/,
  resolve: function resolve() {
    return false;
  },
  options: boolOptions,
  stringify: boolStringify
}, {
  identify: intIdentify$2,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'BIN',
  test: /^[-+]?0b[0-1_]+$/,
  resolve: function resolve(str) {
    return intResolve$1(str, 2, 2);
  },
  stringify: function stringify(node) {
    return intStringify$1(node, 2, '0b');
  }
}, {
  identify: intIdentify$2,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'OCT',
  test: /^[-+]?0[0-7_]+$/,
  resolve: function resolve(str) {
    return intResolve$1(str, 1, 8);
  },
  stringify: function stringify(node) {
    return intStringify$1(node, 8, '0');
  }
}, {
  identify: intIdentify$2,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  test: /^[-+]?[0-9][0-9_]*$/,
  resolve: function resolve(str) {
    return intResolve$1(str, 0, 10);
  },
  stringify: stringifyNumber
}, {
  identify: intIdentify$2,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'HEX',
  test: /^[-+]?0x[0-9a-fA-F_]+$/,
  resolve: function resolve(str) {
    return intResolve$1(str, 2, 16);
  },
  stringify: function stringify(node) {
    return intStringify$1(node, 16, '0x');
  }
}, {
  identify: function identify(value) {
    return typeof value === 'number';
  },
  default: true,
  tag: 'tag:yaml.org,2002:float',
  test: /^[-+]?\.(?:inf|Inf|INF|nan|NaN|NAN)$/,
  resolve: function resolve(str) {
    return str.slice(-3).toLowerCase() === 'nan' ? NaN : str[0] === '-' ? Number.NEGATIVE_INFINITY : Number.POSITIVE_INFINITY;
  },
  stringify: stringifyNumber
}, {
  identify: function identify(value) {
    return typeof value === 'number';
  },
  default: true,
  tag: 'tag:yaml.org,2002:float',
  format: 'EXP',
  test: /^[-+]?(?:[0-9][0-9_]*)?(?:\.[0-9_]*)?[eE][-+]?[0-9]+$/,
  resolve: function resolve(str) {
    return parseFloat(str.replace(/_/g, ''));
  },
  stringify: function stringify(_ref3) {
    var value = _ref3.value;
    return Number(value).toExponential();
  }
}, {
  identify: function identify(value) {
    return typeof value === 'number';
  },
  default: true,
  tag: 'tag:yaml.org,2002:float',
  test: /^[-+]?(?:[0-9][0-9_]*)?\.[0-9_]*$/,
  resolve: function resolve(str) {
    var node = new Scalar(parseFloat(str.replace(/_/g, '')));
    var dot = str.indexOf('.');

    if (dot !== -1) {
      var f = str.substring(dot + 1).replace(/_/g, '');
      if (f[f.length - 1] === '0') node.minFractionDigits = f.length;
    }

    return node;
  },
  stringify: stringifyNumber
}], binary, omap, pairs, set, intTime, floatTime, timestamp);

var schemas = {
  core: core,
  failsafe: failsafe,
  json: json,
  yaml11: yaml11
};
var tags = {
  binary: binary,
  bool: boolObj,
  float: floatObj,
  floatExp: expObj,
  floatNaN: nanObj,
  floatTime: floatTime,
  int: intObj,
  intHex: hexObj,
  intOct: octObj,
  intTime: intTime,
  map: map,
  null: nullObj,
  omap: omap,
  pairs: pairs,
  seq: seq,
  set: set,
  timestamp: timestamp
};

function getSchemaTags(schemas, knownTags, customTags, schemaId) {
  var tags = schemas[schemaId.replace(/\W/g, '')]; // 'yaml-1.1' -> 'yaml11'

  if (!tags) {
    var keys = Object.keys(schemas).map(function (key) {
      return JSON.stringify(key);
    }).join(', ');
    throw new Error("Unknown schema \"".concat(schemaId, "\"; use one of ").concat(keys));
  }

  if (Array.isArray(customTags)) {
    var _iterator = _createForOfIteratorHelper(customTags),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var tag = _step.value;
        tags = tags.concat(tag);
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }
  } else if (typeof customTags === 'function') {
    tags = customTags(tags.slice());
  }

  for (var i = 0; i < tags.length; ++i) {
    var _tag = tags[i];

    if (typeof _tag === 'string') {
      var tagObj = knownTags[_tag];

      if (!tagObj) {
        var _keys = Object.keys(knownTags).map(function (key) {
          return JSON.stringify(key);
        }).join(', ');

        throw new Error("Unknown custom tag \"".concat(_tag, "\"; use one of ").concat(_keys));
      }

      tags[i] = tagObj;
    }
  }

  return tags;
}

var sortMapEntriesByKey = function sortMapEntriesByKey(a, b) {
  return a.key < b.key ? -1 : a.key > b.key ? 1 : 0;
};

var coreKnownTags = {
  'tag:yaml.org,2002:binary': tags.binary,
  'tag:yaml.org,2002:omap': tags.omap,
  'tag:yaml.org,2002:pairs': tags.pairs,
  'tag:yaml.org,2002:set': tags.set,
  'tag:yaml.org,2002:timestamp': tags.timestamp
};
var Schema = function Schema(_ref) {
  var customTags = _ref.customTags,
      merge = _ref.merge,
      resolveKnownTags = _ref.resolveKnownTags,
      schema = _ref.schema,
      sortMapEntries = _ref.sortMapEntries;

  _classCallCheck(this, Schema);

  this.merge = !!merge;
  this.name = schema;
  this.knownTags = resolveKnownTags ? coreKnownTags : {};
  this.tags = getSchemaTags(schemas, tags, customTags, schema); // Used by createNode(), to avoid circular dependencies

  this.map = tags.map;
  this.seq = tags.seq; // Used by createMap()

  this.sortMapEntries = sortMapEntries === true ? sortMapEntriesByKey : sortMapEntries || null;
};

export { Merge as M, Schema as S, MERGE_KEY as a };