/* js-yaml 3.13.1 github.com/nodeca/js-yaml */(function(f){if(typeof exports===“object”&&typeof module!==“undefined”){module.exports=f()}else if(typeof define===“function”&&define.amd){define([],f)}else{var g;if(typeof window!==“undefined”){g=window}else if(typeof global!==“undefined”){g=global}else if(typeof self!==“undefined”){g=self}else{g=this}g.jsyaml = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n){if(!e){var c=“function”==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error(“Cannot find module '”i“'”);throw a.code=“MODULE_NOT_FOUND”,a}var p=n={exports:{}};e[0].call(p.exports,function®{var n=e[1];return o(n||r)},p,p.exports,r,e,n,t)}return n.exports}for(var u=“function”==typeof require&&require,i=0;i);return o}return r})()({1:[function(require,module,exports){ 'use strict';

var loader = require('./js-yaml/loader'); var dumper = require('./js-yaml/dumper');

function deprecated(name) {

return function () {
  throw new Error('Function ' + name + ' is deprecated and cannot be used.');
};

}

module.exports.Type = require('./js-yaml/type'); module.exports.Schema = require('./js-yaml/schema'); module.exports.FAILSAFE_SCHEMA = require('./js-yaml/schema/failsafe'); module.exports.JSON_SCHEMA = require('./js-yaml/schema/json'); module.exports.CORE_SCHEMA = require('./js-yaml/schema/core'); module.exports.DEFAULT_SAFE_SCHEMA = require('./js-yaml/schema/default_safe'); module.exports.DEFAULT_FULL_SCHEMA = require('./js-yaml/schema/default_full'); module.exports.load = loader.load; module.exports.loadAll = loader.loadAll; module.exports.safeLoad = loader.safeLoad; module.exports.safeLoadAll = loader.safeLoadAll; module.exports.dump = dumper.dump; module.exports.safeDump = dumper.safeDump; module.exports.YAMLException = require('./js-yaml/exception');

// Deprecated schema names from JS-YAML 2.0.x module.exports.MINIMAL_SCHEMA = require('./js-yaml/schema/failsafe'); module.exports.SAFE_SCHEMA = require('./js-yaml/schema/default_safe'); module.exports.DEFAULT_SCHEMA = require('./js-yaml/schema/default_full');

// Deprecated functions from JS-YAML 1.x.x module.exports.scan = deprecated('scan'); module.exports.parse = deprecated('parse'); module.exports.compose = deprecated('compose'); module.exports.addConstructor = deprecated('addConstructor');

},{“./js-yaml/dumper”:3,“./js-yaml/exception”:4,“./js-yaml/loader”:5,“./js-yaml/schema”:7,“./js-yaml/schema/core”:8,“./js-yaml/schema/default_full”:9,“./js-yaml/schema/default_safe”:10,“./js-yaml/schema/failsafe”:11,“./js-yaml/schema/json”:12,“./js-yaml/type”:13}],2:[function(require,module,exports){ 'use strict';

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);

}

module.exports.isNothing = isNothing; module.exports.isObject = isObject; module.exports.toArray = toArray; module.exports.repeat = repeat; module.exports.isNegativeZero = isNegativeZero; module.exports.extend = extend;

},{}],3:[function(require,module,exports){ 'use strict';

/*eslint-disable no-use-before-define*/

var common = require('./common'); var YAMLException = require('./exception'); var DEFAULT_FULL_SCHEMA = require('./schema/default_full'); var DEFAULT_SAFE_SCHEMA = require('./schema/default_safe');

var _toString = Object.prototype.toString; var _hasOwnProperty = Object.prototype.hasOwnProperty;

var CHAR_TAB = 0x09; /* Tab */ var CHAR_LINE_FEED = 0x0A; /* LF */ 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_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 = '\0'; ESCAPE_SEQUENCES = '\a'; ESCAPE_SEQUENCES = '\b'; ESCAPE_SEQUENCES = '\t'; ESCAPE_SEQUENCES = '\n'; ESCAPE_SEQUENCES = '\v'; ESCAPE_SEQUENCES = '\f'; ESCAPE_SEQUENCES = '\r'; ESCAPE_SEQUENCES = '\e'; ESCAPE_SEQUENCES = '\“'; ESCAPE_SEQUENCES = '\\'; ESCAPE_SEQUENCES = '\N'; ESCAPE_SEQUENCES = '_'; ESCAPE_SEQUENCES = '\L'; ESCAPE_SEQUENCES = '\P';

var DEPRECATED_BOOLEANS_SYNTAX = [

'y', 'Y', 'yes', 'Yes', 'YES', 'on', 'On', 'ON',
'n', 'N', 'no', 'No', 'NO', 'off', 'Off', 'OFF'

];

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 YAMLException('code point within a string may not be greater than 0xFFFFFFFF');
}

return '\\' + handle + common.repeat('0', length - string.length) + string;

}

function State(options) {

this.schema        = options['schema'] || DEFAULT_FULL_SCHEMA;
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.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© {

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© {

return  (0x00020 <= c && c <= 0x00007E)
    || ((0x000A1 <= c && c <= 0x00D7FF) && c !== 0x2028 && c !== 0x2029)
    || ((0x0E000 <= c && c <= 0x00FFFD) && c !== 0xFEFF /* BOM */)
    ||  (0x10000 <= c && c <= 0x10FFFF);

}

// Simplified test for values allowed after the first character in plain style. function isPlainSafe© {

// Uses a subset of nb-char - c-flow-indicator - ":" - "#"
// where nb-char ::= c-printable - b-char - c-byte-order-mark.
return isPrintable(c) && c !== 0xFEFF
  // - 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
  // - ":" - "#"
  && c !== CHAR_COLON
  && c !== CHAR_SHARP;

}

// Simplified test for values allowed as the first character in plain style. function isPlainSafeFirst© {

// Uses a subset of ns-char - c-indicator
// where ns-char = nb-char - s-white.
return isPrintable(c) && c !== 0xFEFF
  && !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_GREATER_THAN
  && c !== CHAR_SINGLE_QUOTE
  && c !== CHAR_DOUBLE_QUOTE
  // | “%” | “@” | “`”)
  && c !== CHAR_PERCENT
  && c !== CHAR_COMMERCIAL_AT
  && c !== CHAR_GRAVE_ACCENT;

}

// 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) {

var i;
var char;
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(string.charCodeAt(0))
        && !isWhitespace(string.charCodeAt(string.length - 1));

if (singleLineOnly) {
  // Case: no block styles.
  // Check for disallowed characters to rule out plain and single.
  for (i = 0; i < string.length; i++) {
    char = string.charCodeAt(i);
    if (!isPrintable(char)) {
      return STYLE_DOUBLE;
    }
    plain = plain && isPlainSafe(char);
  }
} else {
  // Case: block styles permitted.
  for (i = 0; i < string.length; i++) {
    char = string.charCodeAt(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);
  }
  // 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.
  return plain && !testAmbiguousType(string)
    ? STYLE_PLAIN : 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.
return hasFoldableLine ? STYLE_FOLDED : STYLE_LITERAL;

}

// 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) {

state.dump = (function () {
  if (string.length === 0) {
    return "''";
  }
  if (!state.noCompatMode &&
      DEPRECATED_BOOLEANS_SYNTAX.indexOf(string) !== -1) {
    return "'" + 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)) {
    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, lineWidth) + '"';
    default:
      throw new YAMLException('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, nextChar;
var escapeSeq;

for (var i = 0; i < string.length; i++) {
  char = string.charCodeAt(i);
  // Check for surrogate pairs (reference Unicode 3.0 section "3.7 Surrogates").
  if (char >= 0xD800 && char <= 0xDBFF/* high surrogate */) {
    nextChar = string.charCodeAt(i + 1);
    if (nextChar >= 0xDC00 && nextChar <= 0xDFFF/* low surrogate */) {
      // Combine the surrogate pair and store it escaped.
      result += encodeHex((char - 0xD800) * 0x400 + nextChar - 0xDC00 + 0x10000);
      // Advance index one extra since we already used that char here.
      i++; continue;
    }
  }
  escapeSeq = ESCAPE_SEQUENCES[char];
  result += !escapeSeq && isPrintable(char)
    ? string[i]
    : escapeSeq || encodeHex(char);
}

return result;

}

function writeFlowSequence(state, level, object) {

var _result = '',
    _tag    = state.tag,
    index,
    length;

for (index = 0, length = object.length; index < length; index += 1) {
  // Write only valid elements.
  if (writeNode(state, level, object[index], false, false)) {
    if (index !== 0) _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;

for (index = 0, length = object.length; index < length; index += 1) {
  // Write only valid elements.
  if (writeNode(state, level + 1, object[index], true, true)) {
    if (!compact || index !== 0) {
      _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 = state.condenseFlow ? '"' : '';

  if (index !== 0) pairBuffer += ', ';

  objectKey = objectKeyList[index];
  objectValue = object[objectKey];

  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 YAMLException('sortKeys must be a boolean or a function');
}

for (index = 0, length = objectKeyList.length; index < length; index += 1) {
  pairBuffer = '';

  if (!compact || index !== 0) {
    pairBuffer += generateNextLine(state, level);
  }

  objectKey = objectKeyList[index];
  objectValue = object[objectKey];

  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))) {

    state.tag = explicit ? type.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 YAMLException('!<' + 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) {

state.tag = null;
state.dump = object;

if (!detectType(state, object, false)) {
  detectType(state, object, true);
}

var type = _toString.call(state.dump);

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]') {
    var arrayLevel = (state.noArrayIndent && (level > 0)) ? level - 1 : level;
    if (block && (state.dump.length !== 0)) {
      writeBlockSequence(state, arrayLevel, state.dump, compact);
      if (duplicate) {
        state.dump = '&ref_' + duplicateIndex + state.dump;
      }
    } else {
      writeFlowSequence(state, arrayLevel, state.dump);
      if (duplicate) {
        state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
      }
    }
  } else if (type === '[object String]') {
    if (state.tag !== '?') {
      writeScalar(state, state.dump, level, iskey);
    }
  } else {
    if (state.skipInvalid) return false;
    throw new YAMLException('unacceptable kind of an object to dump ' + type);
  }

  if (state.tag !== null && state.tag !== '?') {
    state.dump = '!<' + state.tag + '> ' + 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(input, options) {

options = options || {};

var state = new State(options);

if (!state.noRefs) getDuplicateReferences(input, state);

if (writeNode(state, 0, input, true, true)) return state.dump + '\n';

return '';

}

function safeDump(input, options) {

return dump(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));

}

module.exports.dump = dump; module.exports.safeDump = safeDump;

},{“./common”:2,“./exception”:4,“./schema/default_full”:9,“./schema/default_safe”:10}],4:[function(require,module,exports){ // YAML error class. stackoverflow.com/questions/8458984 // 'use strict';

function YAMLException(reason, mark) {

// Super constructor
Error.call(this);

this.name = 'YAMLException';
this.reason = reason;
this.mark = mark;
this.message = (this.reason || '(unknown reason)') + (this.mark ? ' ' + this.mark.toString() : '');

// 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.prototype = Object.create(Error.prototype); YAMLException.prototype.constructor = YAMLException;

YAMLException.prototype.toString = function toString(compact) {

var result = this.name + ': ';

result += this.reason || '(unknown reason)';

if (!compact && this.mark) {
  result += ' ' + this.mark.toString();
}

return result;

};

module.exports = YAMLException;

},{}],5:[function(require,module,exports){ 'use strict';

/*eslint-disable max-len,no-use-before-define*/

var common = require('./common'); var YAMLException = require('./exception'); var Mark = require('./mark'); var DEFAULT_SAFE_SCHEMA = require('./schema/default_safe'); var DEFAULT_FULL_SCHEMA = require('./schema/default_full');

var _hasOwnProperty = 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-x08x0Bx0Cx0E-x1Fx7F-x84x86-x9FuFFFEuFFFF]|(?![uDC00-uDFFF])|(?:|^)[uDC00-uDFFF]/; var PATTERN_NON_ASCII_LINE_BREAKS = /[x85u2028u2029]/; 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© {

return (c === 0x0A/* LF */) || (c === 0x0D/* CR */);

}

function is_WHITE_SPACE© {

return (c === 0x09/* Tab */) || (c === 0x20/* Space */);

}

function is_WS_OR_EOL© {

return (c === 0x09/* Tab */) ||
       (c === 0x20/* Space */) ||
       (c === 0x0A/* LF */) ||
       (c === 0x0D/* CR */);

}

function is_FLOW_INDICATOR© {

return c === 0x2C/* , */ ||
       c === 0x5B/* [ */ ||
       c === 0x5D/* ] */ ||
       c === 0x7B/* { */ ||
       c === 0x7D/* } */;

}

function fromHexCode© {

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© {

if (c === 0x78/* x */) { return 2; }
if (c === 0x75/* u */) { return 4; }
if (c === 0x55/* U */) { return 8; }
return 0;

}

function fromDecimalCode© {

if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
  return c - 0x30;
}

return -1;

}

function simpleEscapeSequence© {

/* 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© {

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(input, options) {

this.input = input;

this.filename  = options['filename']  || null;
this.schema    = options['schema']    || DEFAULT_FULL_SCHEMA;
this.onWarning = options['onWarning'] || null;
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;

this.documents = [];

/*
this.version;
this.checkLineBreaks;
this.tagMap;
this.anchorMap;
this.tag;
this.anchor;
this.kind;
this.result;*/

}

function generateError(state, message) {

return new YAMLException(
  message,
  new Mark(state.filename, state.input, state.position, state.line, (state.position - state.lineStart)));

}

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.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');
  }

  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.call(destination, key)) {
    destination[key] = source[key];
    overridableKeys[key] = true;
  }
}

}

function storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, startLine, 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.call(overridableKeys, keyNode) &&
      _hasOwnProperty.call(_result, keyNode)) {
    state.line = startLine || state.line;
    state.position = startPos || state.position;
    throwError(state, 'duplicated mapping key');
  }
  _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;

}

function skipSeparationSpace(state, allowComments, checkIndent) {

var lineBreaks = 0,
    ch = state.input.charCodeAt(state.position);

while (ch !== 0) {
  while (is_WHITE_SPACE(ch)) {
    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,
    _tag     = state.tag,
    _result,
    _anchor  = state.anchor,
    following,
    terminator,
    isPair,
    isExplicitPair,
    isMapping,
    overridableKeys = {},
    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');
  }

  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;
  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);
  } else if (isPair) {
    _result.push(storeMappingPair(state, null, overridableKeys, keyTag, keyNode, valueNode));
  } 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;

if (state.anchor !== null) {
  state.anchorMap[state.anchor] = _result;
}

ch = state.input.charCodeAt(state.position);

while (ch !== 0) {

  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,
    _pos,
    _tag          = state.tag,
    _anchor       = state.anchor,
    _result       = {},
    overridableKeys = {},
    keyTag        = null,
    keyNode       = null,
    valueNode     = null,
    atExplicitKey = false,
    detected      = false,
    ch;

if (state.anchor !== null) {
  state.anchorMap[state.anchor] = _result;
}

ch = state.input.charCodeAt(state.position);

while (ch !== 0) {
  following = state.input.charCodeAt(state.position + 1);
  _line = state.line; // Save the current line.
  _pos = state.position;

  //
  // 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);
        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 if (composeNode(state, flowIndent, CONTEXT_FLOW_OUT, false, true)) {

    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);
          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`.
    }

  } else {
    break; // Reading is done. Go to the epilogue.
  }

  //
  // Common reading code for both explicit and implicit notations.
  //
  if (state.line === _line || state.lineIndent > nodeIndent) {
    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, _line, _pos);
      keyTag = keyNode = valueNode = null;
    }

    skipSeparationSpace(state, true, -1);
    ch = state.input.charCodeAt(state.position);
  }

  if (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);
}

// 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);
}

if (isVerbatim) {
  state.tag = tagName;

} else if (_hasOwnProperty.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 (!state.anchorMap.hasOwnProperty(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,
    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 && state.tag !== '!') {
  if (state.tag === '?') {
    for (typeIndex = 0, typeQuantity = state.implicitTypes.length; typeIndex < typeQuantity; typeIndex += 1) {
      type = state.implicitTypes[typeIndex];

      // Implicit resolving is not allowed for non-scalar types, and '?'
      // non-specific tag is only assigned to plain scalars. So, it isn't
      // needed to check for 'kind' conformity.

      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 (_hasOwnProperty.call(state.typeMap[state.kind || 'fallback'], state.tag)) {
    type = state.typeMap[state.kind || 'fallback'][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.result` updated in resolver if matched
      throwError(state, 'cannot resolve a node with !<' + state.tag + '> explicit tag');
    } else {
      state.result = type.construct(state.result);
      if (state.anchor !== null) {
        state.anchorMap[state.anchor] = state.result;
      }
    }
  } else {
    throwError(state, 'unknown tag !<' + state.tag + '>');
  }
}

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 = {};
state.anchorMap = {};

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.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(input, options);

// 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(input, iterator, options) {

var documents = loadDocuments(input, options), index, length;

if (typeof iterator !== 'function') {
  return documents;
}

for (index = 0, length = documents.length; index < length; index += 1) {
  iterator(documents[index]);
}

}

function load(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 YAMLException('expected a single document in the stream, but found more');

}

function safeLoadAll(input, output, options) {

if (typeof output === 'function') {
  loadAll(input, output, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
} else {
  return loadAll(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
}

}

function safeLoad(input, options) {

return load(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));

}

module.exports.loadAll = loadAll; module.exports.load = load; module.exports.safeLoadAll = safeLoadAll; module.exports.safeLoad = safeLoad;

},{“./common”:2,“./exception”:4,“./mark”:6,“./schema/default_full”:9,“./schema/default_safe”:10}],6:[function(require,module,exports){ 'use strict';

var common = require('./common');

function Mark(name, buffer, position, line, column) {

this.name     = name;
this.buffer   = buffer;
this.position = position;
this.line     = line;
this.column   = column;

}

Mark.prototype.getSnippet = function getSnippet(indent, maxLength) {

var head, start, tail, end, snippet;

if (!this.buffer) return null;

indent = indent || 4;
maxLength = maxLength || 75;

head = '';
start = this.position;

while (start > 0 && '\x00\r\n\x85\u2028\u2029'.indexOf(this.buffer.charAt(start - 1)) === -1) {
  start -= 1;
  if (this.position - start > (maxLength / 2 - 1)) {
    head = ' ... ';
    start += 5;
    break;
  }
}

tail = '';
end = this.position;

while (end < this.buffer.length && '\x00\r\n\x85\u2028\u2029'.indexOf(this.buffer.charAt(end)) === -1) {
  end += 1;
  if (end - this.position > (maxLength / 2 - 1)) {
    tail = ' ... ';
    end -= 5;
    break;
  }
}

snippet = this.buffer.slice(start, end);

return common.repeat(' ', indent) + head + snippet + tail + '\n' +
       common.repeat(' ', indent + this.position - start + head.length) + '^';

};

Mark.prototype.toString = function toString(compact) {

var snippet, where = '';

if (this.name) {
  where += 'in "' + this.name + '" ';
}

where += 'at line ' + (this.line + 1) + ', column ' + (this.column + 1);

if (!compact) {
  snippet = this.getSnippet();

  if (snippet) {
    where += ':\n' + snippet;
  }
}

return where;

};

module.exports = Mark;

},{“./common”:2}],7:[function(require,module,exports){ 'use strict';

/*eslint-disable max-len*/

var common = require('./common'); var YAMLException = require('./exception'); var Type = require('./type');

function compileList(schema, name, result) {

var exclude = [];

schema.include.forEach(function (includedSchema) {
  result = compileList(includedSchema, name, result);
});

schema[name].forEach(function (currentType) {
  result.forEach(function (previousType, previousIndex) {
    if (previousType.tag === currentType.tag && previousType.kind === currentType.kind) {
      exclude.push(previousIndex);
    }
  });

  result.push(currentType);
});

return result.filter(function (type, index) {
  return exclude.indexOf(index) === -1;
});

}

function compileMap(/* lists… */) {

var result = {
      scalar: {},
      sequence: {},
      mapping: {},
      fallback: {}
    }, index, length;

function collectType(type) {
  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(definition) {

this.include  = definition.include  || [];
this.implicit = definition.implicit || [];
this.explicit = definition.explicit || [];

this.implicit.forEach(function (type) {
  if (type.loadKind && type.loadKind !== 'scalar') {
    throw new YAMLException('There is a non-scalar type in the implicit list of a schema. Implicit resolving of such types is not supported.');
  }
});

this.compiledImplicit = compileList(this, 'implicit', []);
this.compiledExplicit = compileList(this, 'explicit', []);
this.compiledTypeMap  = compileMap(this.compiledImplicit, this.compiledExplicit);

}

Schema.DEFAULT = null;

Schema.create = function createSchema() {

var schemas, types;

switch (arguments.length) {
  case 1:
    schemas = Schema.DEFAULT;
    types = arguments[0];
    break;

  case 2:
    schemas = arguments[0];
    types = arguments[1];
    break;

  default:
    throw new YAMLException('Wrong number of arguments for Schema.create function');
}

schemas = common.toArray(schemas);
types = common.toArray(types);

if (!schemas.every(function (schema) { return schema instanceof Schema; })) {
  throw new YAMLException('Specified list of super schemas (or a single Schema object) contains a non-Schema object.');
}

if (!types.every(function (type) { return type instanceof Type; })) {
  throw new YAMLException('Specified list of YAML types (or a single Type object) contains a non-Type object.');
}

return new Schema({
  include: schemas,
  explicit: types
});

};

module.exports = Schema;

},{“./common”:2,“./exception”:4,“./type”:13}],8:[function(require,module,exports){ // Standard YAML's Core schema. // www.yaml.org/spec/1.2/spec.html#id2804923 // // NOTE: JS-YAML does not support schema-specific tag resolution restrictions. // So, Core schema has no distinctions from JSON schema is JS-YAML.

'use strict';

var Schema = require('../schema');

module.exports = new Schema({

include: [
  require('./json')
]

});

},{“../schema”:7,“./json”:12}],9:[function(require,module,exports){ // JS-YAML's default schema for `load` function. // It is not described in the YAML specification. // // This schema is based on JS-YAML's default safe schema and includes // JavaScript-specific types: !!js/undefined, !!js/regexp and !!js/function. // // Also this schema is used as default base schema at `Schema.create` function.

'use strict';

var Schema = require('../schema');

module.exports = Schema.DEFAULT = new Schema({

include: [
  require('./default_safe')
],
explicit: [
  require('../type/js/undefined'),
  require('../type/js/regexp'),
  require('../type/js/function')
]

});

},{“../schema”:7,“../type/js/function”:18,“../type/js/regexp”:19,“../type/js/undefined”:20,“./default_safe”:10}],10:[function(require,module,exports){ // JS-YAML's default schema for `safeLoad` function. // It is not described in the YAML specification. // // This schema is based on standard YAML's Core schema and includes most of // extra types described at YAML tag repository. (yaml.org/type/)

'use strict';

var Schema = require('../schema');

module.exports = new Schema({

include: [
  require('./core')
],
implicit: [
  require('../type/timestamp'),
  require('../type/merge')
],
explicit: [
  require('../type/binary'),
  require('../type/omap'),
  require('../type/pairs'),
  require('../type/set')
]

});

},{“../schema”:7,“../type/binary”:14,“../type/merge”:22,“../type/omap”:24,“../type/pairs”:25,“../type/set”:27,“../type/timestamp”:29,“./core”:8}],11:[function(require,module,exports){ // Standard YAML's Failsafe schema. // www.yaml.org/spec/1.2/spec.html#id2802346

'use strict';

var Schema = require('../schema');

module.exports = new Schema({

explicit: [
  require('../type/str'),
  require('../type/seq'),
  require('../type/map')
]

});

},{“../schema”:7,“../type/map”:21,“../type/seq”:26,“../type/str”:28}],12:[function(require,module,exports){ // Standard YAML's JSON schema. // www.yaml.org/spec/1.2/spec.html#id2803231 // // NOTE: JS-YAML does not support schema-specific tag resolution restrictions. // So, this schema is not such strict as defined in the YAML specification. // It allows numbers in binary notaion, use `Null` and `NULL` as `null`, etc.

'use strict';

var Schema = require('../schema');

module.exports = new Schema({

include: [
  require('./failsafe')
],
implicit: [
  require('../type/null'),
  require('../type/bool'),
  require('../type/int'),
  require('../type/float')
]

});

},{“../schema”:7,“../type/bool”:15,“../type/float”:16,“../type/int”:17,“../type/null”:23,“./failsafe”:11}],13:[function(require,module,exports){ 'use strict';

var YAMLException = require('./exception');

var TYPE_CONSTRUCTOR_OPTIONS = [

'kind',
'resolve',
'construct',
'instanceOf',
'predicate',
'represent',
'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(tag, options) {

options = options || {};

Object.keys(options).forEach(function (name) {
  if (TYPE_CONSTRUCTOR_OPTIONS.indexOf(name) === -1) {
    throw new YAMLException('Unknown option "' + name + '" is met in definition of "' + tag + '" YAML type.');
  }
});

// TODO: Add tag format check.
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.defaultStyle = options['defaultStyle'] || null;
this.styleAliases = compileStyleAliases(options['styleAliases'] || null);

if (YAML_NODE_KINDS.indexOf(this.kind) === -1) {
  throw new YAMLException('Unknown kind "' + this.kind + '" is specified for "' + tag + '" YAML type.');
}

}

module.exports = Type;

},{“./exception”:4}],14:[function(require,module,exports){ 'use strict';

/*eslint-disable no-bitwise*/

var NodeBuffer;

try {

// A trick for browserified version, to not include `Buffer` shim
var _require = require;
NodeBuffer = _require('buffer').Buffer;

} catch (__) {}

var Type = require('../type');

// [ 64, 65, 66 ] -> [ padding, CR, LF ] var BASE64_MAP = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=nr';

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);
}

// Wrap into Buffer for NodeJS and leave Array for browser
if (NodeBuffer) {
  // Support node 6.+ Buffer API when available
  return NodeBuffer.from ? NodeBuffer.from(result) : new NodeBuffer(result);
}

return 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(object) {

return NodeBuffer && NodeBuffer.isBuffer(object);

}

module.exports = new Type('tag:yaml.org,2002:binary', {

kind: 'scalar',
resolve: resolveYamlBinary,
construct: constructYamlBinary,
predicate: isBinary,
represent: representYamlBinary

});

},{“../type”:13}],15:[function(require,module,exports){ 'use strict';

var Type = require('../type');

function resolveYamlBoolean(data) {

if (data === null) return false;

var max = data.length;

return (max === 4 && (data === 'true' || data === 'True' || data === 'TRUE')) ||
       (max === 5 && (data === 'false' || data === 'False' || data === 'FALSE'));

}

function constructYamlBoolean(data) {

return data === 'true' ||
       data === 'True' ||
       data === 'TRUE';

}

function isBoolean(object) {

return Object.prototype.toString.call(object) === '[object Boolean]';

}

module.exports = 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'

});

},{“../type”:13}],16:[function(require,module,exports){ 'use strict';

var common = require('../common'); var Type = require('../type');

var YAML_FLOAT_PATTERN = new RegExp(

// 2.5e4, 2.5 and integers
'^(?:[-+]?(?:0|[1-9][0-9_]*)(?:\\.[0-9_]*)?(?:[eE][-+]?[0-9]+)?' +
// .2e4, .2
// special case, seems not from spec
'|\\.[0-9_]+(?:[eE][-+]?[0-9]+)?' +
// 20:59
'|[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\\.[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, base, digits;

value  = data.replace(/_/g, '').toLowerCase();
sign   = value[0] === '-' ? -1 : 1;
digits = [];

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;

} else if (value.indexOf(':') >= 0) {
  value.split(':').forEach(function (v) {
    digits.unshift(parseFloat(v, 10));
  });

  value = 0.0;
  base = 1;

  digits.forEach(function (d) {
    value += d * base;
    base *= 60;
  });

  return sign * value;

}
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));

}

module.exports = new Type('tag:yaml.org,2002:float', {

kind: 'scalar',
resolve: resolveYamlFloat,
construct: constructYamlFloat,
predicate: isFloat,
represent: representYamlFloat,
defaultStyle: 'lowercase'

});

},{“../common”:2,“../type”:13}],17:[function(require,module,exports){ 'use strict';

var common = require('../common'); var Type = require('../type');

function isHexCode© {

return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) ||
       ((0x41/* A */ <= c) && (c <= 0x46/* F */)) ||
       ((0x61/* a */ <= c) && (c <= 0x66/* f */));

}

function isOctCode© {

return ((0x30/* 0 */ <= c) && (c <= 0x37/* 7 */));

}

function isDecCode© {

return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */));

}

function resolveYamlInteger(data) {

if (data === null) return false;

var max = data.length,
    index = 0,
    hasDigits = false,
    ch;

if (!max) return false;

ch = data[index];

// sign
if (ch === '-' || ch === '+') {
  ch = data[++index];
}

if (ch === '0') {
  // 0
  if (index + 1 === max) return true;
  ch = data[++index];

  // base 2, base 8, base 16

  if (ch === 'b') {
    // base 2
    index++;

    for (; index < max; index++) {
      ch = data[index];
      if (ch === '_') continue;
      if (ch !== '0' && ch !== '1') return false;
      hasDigits = true;
    }
    return hasDigits && ch !== '_';
  }

  if (ch === 'x') {
    // base 16
    index++;

    for (; index < max; index++) {
      ch = data[index];
      if (ch === '_') continue;
      if (!isHexCode(data.charCodeAt(index))) return false;
      hasDigits = true;
    }
    return hasDigits && ch !== '_';
  }

  // base 8
  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) or base 60

// value should not start with `_`;
if (ch === '_') return false;

for (; index < max; index++) {
  ch = data[index];
  if (ch === '_') continue;
  if (ch === ':') break;
  if (!isDecCode(data.charCodeAt(index))) {
    return false;
  }
  hasDigits = true;
}

// Should have digits and should not end with `_`
if (!hasDigits || ch === '_') return false;

// if !base60 - done;
if (ch !== ':') return true;

// base60 almost not used, no needs to optimize
return /^(:[0-5]?[0-9])+$/.test(data.slice(index));

}

function constructYamlInteger(data) {

var value = data, sign = 1, ch, base, digits = [];

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, 16);
  return sign * parseInt(value, 8);
}

if (value.indexOf(':') !== -1) {
  value.split(':').forEach(function (v) {
    digits.unshift(parseInt(v, 10));
  });

  value = 0;
  base = 1;

  digits.forEach(function (d) {
    value += (d * base);
    base *= 60;
  });

  return sign * value;

}

return sign * parseInt(value, 10);

}

function isInteger(object) {

return (Object.prototype.toString.call(object)) === '[object Number]' &&
       (object % 1 === 0 && !common.isNegativeZero(object));

}

module.exports = 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 ? '0'  + obj.toString(8) : '-0'  + 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' ]
}

});

},{“../common”:2,“../type”:13}],18:[function(require,module,exports){ 'use strict';

var esprima;

// Browserified version does not have esprima // // 1. For node.js just require module as deps // 2. For browser try to require mudule via external AMD system. // If not found - try to fallback to window.esprima. If not // found too - then fail to parse. // try {

// workaround to exclude package from browserify list.
var _require = require;
esprima = _require('esprima');

} catch (_) {

/*global window */
if (typeof window !== 'undefined') esprima = window.esprima;

}

var Type = require('../../type');

function resolveJavascriptFunction(data) {

if (data === null) return false;

try {
  var source = '(' + data + ')',
      ast    = esprima.parse(source, { range: true });

  if (ast.type                    !== 'Program'             ||
      ast.body.length             !== 1                     ||
      ast.body[0].type            !== 'ExpressionStatement' ||
      (ast.body[0].expression.type !== 'ArrowFunctionExpression' &&
        ast.body[0].expression.type !== 'FunctionExpression')) {
    return false;
  }

  return true;
} catch (err) {
  return false;
}

}

function constructJavascriptFunction(data) {

/*jslint evil:true*/

var source = '(' + data + ')',
    ast    = esprima.parse(source, { range: true }),
    params = [],
    body;

if (ast.type                    !== 'Program'             ||
    ast.body.length             !== 1                     ||
    ast.body[0].type            !== 'ExpressionStatement' ||
    (ast.body[0].expression.type !== 'ArrowFunctionExpression' &&
      ast.body[0].expression.type !== 'FunctionExpression')) {
  throw new Error('Failed to resolve function');
}

ast.body[0].expression.params.forEach(function (param) {
  params.push(param.name);
});

body = ast.body[0].expression.body.range;

// Esprima's ranges include the first '{' and the last '}' characters on
// function expressions. So cut them out.
if (ast.body[0].expression.body.type === 'BlockStatement') {
  /*eslint-disable no-new-func*/
  return new Function(params, source.slice(body[0] + 1, body[1] - 1));
}
// ES6 arrow functions can omit the BlockStatement. In that case, just return
// the body.
/*eslint-disable no-new-func*/
return new Function(params, 'return ' + source.slice(body[0], body[1]));

}

function representJavascriptFunction(object /*, style*/) {

return object.toString();

}

function isFunction(object) {

return Object.prototype.toString.call(object) === '[object Function]';

}

module.exports = new Type('tag:yaml.org,2002:js/function', {

kind: 'scalar',
resolve: resolveJavascriptFunction,
construct: constructJavascriptFunction,
predicate: isFunction,
represent: representJavascriptFunction

});

},{“../../type”:13}],19:[function(require,module,exports){ 'use strict';

var Type = require('../../type');

function resolveJavascriptRegExp(data) {

if (data === null) return false;
if (data.length === 0) return false;

var regexp = data,
    tail   = /\/([gim]*)$/.exec(data),
    modifiers = '';

// if regexp starts with '/' it can have modifiers and must be properly closed
// `/foo/gim` - modifiers tail can be maximum 3 chars
if (regexp[0] === '/') {
  if (tail) modifiers = tail[1];

  if (modifiers.length > 3) return false;
  // if expression starts with /, is should be properly terminated
  if (regexp[regexp.length - modifiers.length - 1] !== '/') return false;
}

return true;

}

function constructJavascriptRegExp(data) {

var regexp = data,
    tail   = /\/([gim]*)$/.exec(data),
    modifiers = '';

// `/foo/gim` - tail can be maximum 4 chars
if (regexp[0] === '/') {
  if (tail) modifiers = tail[1];
  regexp = regexp.slice(1, regexp.length - modifiers.length - 1);
}

return new RegExp(regexp, modifiers);

}

function representJavascriptRegExp(object /*, style*/) {

var result = '/' + object.source + '/';

if (object.global) result += 'g';
if (object.multiline) result += 'm';
if (object.ignoreCase) result += 'i';

return result;

}

function isRegExp(object) {

return Object.prototype.toString.call(object) === '[object RegExp]';

}

module.exports = new Type('tag:yaml.org,2002:js/regexp', {

kind: 'scalar',
resolve: resolveJavascriptRegExp,
construct: constructJavascriptRegExp,
predicate: isRegExp,
represent: representJavascriptRegExp

});

},{“../../type”:13}],20:[function(require,module,exports){ 'use strict';

var Type = require('../../type');

function resolveJavascriptUndefined() {

return true;

}

function constructJavascriptUndefined() {

/*eslint-disable no-undefined*/
return undefined;

}

function representJavascriptUndefined() {

return '';

}

function isUndefined(object) {

return typeof object === 'undefined';

}

module.exports = new Type('tag:yaml.org,2002:js/undefined', {

kind: 'scalar',
resolve: resolveJavascriptUndefined,
construct: constructJavascriptUndefined,
predicate: isUndefined,
represent: representJavascriptUndefined

});

},{“../../type”:13}],21:[function(require,module,exports){ 'use strict';

var Type = require('../type');

module.exports = new Type('tag:yaml.org,2002:map', {

kind: 'mapping',
construct: function (data) { return data !== null ? data : {}; }

});

},{“../type”:13}],22:[function(require,module,exports){ 'use strict';

var Type = require('../type');

function resolveYamlMerge(data) {

return data === '<<' || data === null;

}

module.exports = new Type('tag:yaml.org,2002:merge', {

kind: 'scalar',
resolve: resolveYamlMerge

});

},{“../type”:13}],23:[function(require,module,exports){ 'use strict';

var Type = require('../type');

function resolveYamlNull(data) {

if (data === null) return true;

var max = data.length;

return (max === 1 && data === '~') ||
       (max === 4 && (data === 'null' || data === 'Null' || data === 'NULL'));

}

function constructYamlNull() {

return null;

}

function isNull(object) {

return object === null;

}

module.exports = 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'; }
},
defaultStyle: 'lowercase'

});

},{“../type”:13}],24:[function(require,module,exports){ 'use strict';

var Type = require('../type');

var _hasOwnProperty = Object.prototype.hasOwnProperty; var _toString = 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.call(pair) !== '[object Object]') return false;

  for (pairKey in pair) {
    if (_hasOwnProperty.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 : [];

}

module.exports = new Type('tag:yaml.org,2002:omap', {

kind: 'sequence',
resolve: resolveYamlOmap,
construct: constructYamlOmap

});

},{“../type”:13}],25:[function(require,module,exports){ 'use strict';

var Type = require('../type');

var _toString = 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.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;

}

module.exports = new Type('tag:yaml.org,2002:pairs', {

kind: 'sequence',
resolve: resolveYamlPairs,
construct: constructYamlPairs

});

},{“../type”:13}],26:[function(require,module,exports){ 'use strict';

var Type = require('../type');

module.exports = new Type('tag:yaml.org,2002:seq', {

kind: 'sequence',
construct: function (data) { return data !== null ? data : []; }

});

},{“../type”:13}],27:[function(require,module,exports){ 'use strict';

var Type = require('../type');

var _hasOwnProperty = Object.prototype.hasOwnProperty;

function resolveYamlSet(data) {

if (data === null) return true;

var key, object = data;

for (key in object) {
  if (_hasOwnProperty.call(object, key)) {
    if (object[key] !== null) return false;
  }
}

return true;

}

function constructYamlSet(data) {

return data !== null ? data : {};

}

module.exports = new Type('tag:yaml.org,2002:set', {

kind: 'mapping',
resolve: resolveYamlSet,
construct: constructYamlSet

});

},{“../type”:13}],28:[function(require,module,exports){ 'use strict';

var Type = require('../type');

module.exports = new Type('tag:yaml.org,2002:str', {

kind: 'scalar',
construct: function (data) { return data !== null ? data : ''; }

});

},{“../type”:13}],29:[function(require,module,exports){ 'use strict';

var Type = require('../type');

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();

}

module.exports = new Type('tag:yaml.org,2002:timestamp', {

kind: 'scalar',
resolve: resolveYamlTimestamp,
construct: constructYamlTimestamp,
instanceOf: Date,
represent: representYamlTimestamp

});

},{“../type”:13}],“/”:[function(require,module,exports){ 'use strict';

var yaml = require('./lib/js-yaml.js');

module.exports = yaml;

},{“./lib/js-yaml.js”:1}]},{},[])(“/”) });