Otaku-Projects / AngularJS-CRUD-PHP

third-party/showdownjs/1.9.1/showdown.js

;/*! showdown v 1.9.1 - 02-11-2019 */
(function(){
/**
 * Created by Tivie on 13-07-2015.
 */

function getDefaultOpts (simple) {
  'use strict';

  var defaultOptions = {
    omitExtraWLInCodeBlocks: {
      defaultValue: false,
      describe: 'Omit the default extra whiteline added to code blocks',
      type: 'boolean'
    },
    noHeaderId: {
      defaultValue: false,
      describe: 'Turn on/off generated header id',
      type: 'boolean'
    },
    prefixHeaderId: {
      defaultValue: false,
      describe: 'Add a prefix to the generated header ids. Passing a string will prefix that string to the header id. Setting to true will add a generic \'section-\' prefix',
      type: 'string'
    },
    rawPrefixHeaderId: {
      defaultValue: false,
      describe: 'Setting this option to true will prevent showdown from modifying the prefix. This might result in malformed IDs (if, for instance, the " char is used in the prefix)',
      type: 'boolean'
    },
    ghCompatibleHeaderId: {
      defaultValue: false,
      describe: 'Generate header ids compatible with github style (spaces are replaced with dashes, a bunch of non alphanumeric chars are removed)',
      type: 'boolean'
    },
    rawHeaderId: {
      defaultValue: false,
      describe: 'Remove only spaces, \' and " from generated header ids (including prefixes), replacing them with dashes (-). WARNING: This might result in malformed ids',
      type: 'boolean'
    },
    headerLevelStart: {
      defaultValue: false,
      describe: 'The header blocks level start',
      type: 'integer'
    },
    parseImgDimensions: {
      defaultValue: false,
      describe: 'Turn on/off image dimension parsing',
      type: 'boolean'
    },
    simplifiedAutoLink: {
      defaultValue: false,
      describe: 'Turn on/off GFM autolink style',
      type: 'boolean'
    },
    excludeTrailingPunctuationFromURLs: {
      defaultValue: false,
      describe: 'Excludes trailing punctuation from links generated with autoLinking',
      type: 'boolean'
    },
    literalMidWordUnderscores: {
      defaultValue: false,
      describe: 'Parse midword underscores as literal underscores',
      type: 'boolean'
    },
    literalMidWordAsterisks: {
      defaultValue: false,
      describe: 'Parse midword asterisks as literal asterisks',
      type: 'boolean'
    },
    strikethrough: {
      defaultValue: false,
      describe: 'Turn on/off strikethrough support',
      type: 'boolean'
    },
    tables: {
      defaultValue: false,
      describe: 'Turn on/off tables support',
      type: 'boolean'
    },
    tablesHeaderId: {
      defaultValue: false,
      describe: 'Add an id to table headers',
      type: 'boolean'
    },
    ghCodeBlocks: {
      defaultValue: true,
      describe: 'Turn on/off GFM fenced code blocks support',
      type: 'boolean'
    },
    tasklists: {
      defaultValue: false,
      describe: 'Turn on/off GFM tasklist support',
      type: 'boolean'
    },
    smoothLivePreview: {
      defaultValue: false,
      describe: 'Prevents weird effects in live previews due to incomplete input',
      type: 'boolean'
    },
    smartIndentationFix: {
      defaultValue: false,
      description: 'Tries to smartly fix indentation in es6 strings',
      type: 'boolean'
    },
    disableForced4SpacesIndentedSublists: {
      defaultValue: false,
      description: 'Disables the requirement of indenting nested sublists by 4 spaces',
      type: 'boolean'
    },
    simpleLineBreaks: {
      defaultValue: false,
      description: 'Parses simple line breaks as <br> (GFM Style)',
      type: 'boolean'
    },
    requireSpaceBeforeHeadingText: {
      defaultValue: false,
      description: 'Makes adding a space between `#` and the header text mandatory (GFM Style)',
      type: 'boolean'
    },
    ghMentions: {
      defaultValue: false,
      description: 'Enables github @mentions',
      type: 'boolean'
    },
    ghMentionsLink: {
      defaultValue: 'https://github.com/{u}',
      description: 'Changes the link generated by @mentions. Only applies if ghMentions option is enabled.',
      type: 'string'
    },
    encodeEmails: {
      defaultValue: true,
      description: 'Encode e-mail addresses through the use of Character Entities, transforming ASCII e-mail addresses into its equivalent decimal entities',
      type: 'boolean'
    },
    openLinksInNewWindow: {
      defaultValue: false,
      description: 'Open all links in new windows',
      type: 'boolean'
    },
    backslashEscapesHTMLTags: {
      defaultValue: false,
      description: 'Support for HTML Tag escaping. ex: \<div>foo\</div>',
      type: 'boolean'
    },
    emoji: {
      defaultValue: false,
      description: 'Enable emoji support. Ex: `this is a :smile: emoji`',
      type: 'boolean'
    },
    underline: {
      defaultValue: false,
      description: 'Enable support for underline. Syntax is double or triple underscores: `__underline word__`. With this option enabled, underscores no longer parses into `<em>` and `<strong>`',
      type: 'boolean'
    },
    completeHTMLDocument: {
      defaultValue: false,
      description: 'Outputs a complete html document, including `<html>`, `<head>` and `<body>` tags',
      type: 'boolean'
    },
    metadata: {
      defaultValue: false,
      description: 'Enable support for document metadata (defined at the top of the document between `«««` and `»»»` or between `---` and `---`).',
      type: 'boolean'
    },
    splitAdjacentBlockquotes: {
      defaultValue: false,
      description: 'Split adjacent blockquote blocks',
      type: 'boolean'
    }
  };
  if (simple === false) {
    return JSON.parse(JSON.stringify(defaultOptions));
  }
  var ret = {};
  for (var opt in defaultOptions) {
    if (defaultOptions.hasOwnProperty(opt)) {
      ret[opt] = defaultOptions[opt].defaultValue;
    }
  }
  return ret;
}

function allOptionsOn () {
  'use strict';
  var options = getDefaultOpts(true),
      ret = {};
  for (var opt in options) {
    if (options.hasOwnProperty(opt)) {
      ret[opt] = true;
    }
  }
  return ret;
}

/**
 * Created by Tivie on 06-01-2015.
 */

// Private properties
var showdown = {},
    parsers = {},
    extensions = {},
    globalOptions = getDefaultOpts(true),
    setFlavor = 'vanilla',
    flavor = {
      github: {
        omitExtraWLInCodeBlocks:              true,
        simplifiedAutoLink:                   true,
        excludeTrailingPunctuationFromURLs:   true,
        literalMidWordUnderscores:            true,
        strikethrough:                        true,
        tables:                               true,
        tablesHeaderId:                       true,
        ghCodeBlocks:                         true,
        tasklists:                            true,
        disableForced4SpacesIndentedSublists: true,
        simpleLineBreaks:                     true,
        requireSpaceBeforeHeadingText:        true,
        ghCompatibleHeaderId:                 true,
        ghMentions:                           true,
        backslashEscapesHTMLTags:             true,
        emoji:                                true,
        splitAdjacentBlockquotes:             true
      },
      original: {
        noHeaderId:                           true,
        ghCodeBlocks:                         false
      },
      ghost: {
        omitExtraWLInCodeBlocks:              true,
        parseImgDimensions:                   true,
        simplifiedAutoLink:                   true,
        excludeTrailingPunctuationFromURLs:   true,
        literalMidWordUnderscores:            true,
        strikethrough:                        true,
        tables:                               true,
        tablesHeaderId:                       true,
        ghCodeBlocks:                         true,
        tasklists:                            true,
        smoothLivePreview:                    true,
        simpleLineBreaks:                     true,
        requireSpaceBeforeHeadingText:        true,
        ghMentions:                           false,
        encodeEmails:                         true
      },
      vanilla: getDefaultOpts(true),
      allOn: allOptionsOn()
    };

/**
 * helper namespace
 * @type {{}}
 */
showdown.helper = {};

/**
 * TODO LEGACY SUPPORT CODE
 * @type {{}}
 */
showdown.extensions = {};

/**
 * Set a global option
 * @static
 * @param {string} key
 * @param {*} value
 * @returns {showdown}
 */
showdown.setOption = function (key, value) {
  'use strict';
  globalOptions[key] = value;
  return this;
};

/**
 * Get a global option
 * @static
 * @param {string} key
 * @returns {*}
 */
showdown.getOption = function (key) {
  'use strict';
  return globalOptions[key];
};

/**
 * Get the global options
 * @static
 * @returns {{}}
 */
showdown.getOptions = function () {
  'use strict';
  return globalOptions;
};

/**
 * Reset global options to the default values
 * @static
 */
showdown.resetOptions = function () {
  'use strict';
  globalOptions = getDefaultOpts(true);
};

/**
 * Set the flavor showdown should use as default
 * @param {string} name
 */
showdown.setFlavor = function (name) {
  'use strict';
  if (!flavor.hasOwnProperty(name)) {
    throw Error(name + ' flavor was not found');
  }
  showdown.resetOptions();
  var preset = flavor[name];
  setFlavor = name;
  for (var option in preset) {
    if (preset.hasOwnProperty(option)) {
      globalOptions[option] = preset[option];
    }
  }
};

/**
 * Get the currently set flavor
 * @returns {string}
 */
showdown.getFlavor = function () {
  'use strict';
  return setFlavor;
};

/**
 * Get the options of a specified flavor. Returns undefined if the flavor was not found
 * @param {string} name Name of the flavor
 * @returns {{}|undefined}
 */
showdown.getFlavorOptions = function (name) {
  'use strict';
  if (flavor.hasOwnProperty(name)) {
    return flavor[name];
  }
};

/**
 * Get the default options
 * @static
 * @param {boolean} [simple=true]
 * @returns {{}}
 */
showdown.getDefaultOptions = function (simple) {
  'use strict';
  return getDefaultOpts(simple);
};

/**
 * Get or set a subParser
 *
 * subParser(name)       - Get a registered subParser
 * subParser(name, func) - Register a subParser
 * @static
 * @param {string} name
 * @param {function} [func]
 * @returns {*}
 */
showdown.subParser = function (name, func) {
  'use strict';
  if (showdown.helper.isString(name)) {
    if (typeof func !== 'undefined') {
      parsers[name] = func;
    } else {
      if (parsers.hasOwnProperty(name)) {
        return parsers[name];
      } else {

else is not necessary here since all if branches return, consider removing it to reduce nesting and make code more readable.

        throw Error('SubParser named ' + name + ' not registered!');
      }
    }
  }
};

/**
 * Gets or registers an extension
 * @static
 * @param {string} name
 * @param {object|function=} ext
 * @returns {*}
 */
showdown.extension = function (name, ext) {
  'use strict';

  if (!showdown.helper.isString(name)) {
    throw Error('Extension \'name\' must be a string');
  }

  name = showdown.helper.stdExtName(name);

  // Getter
  if (showdown.helper.isUndefined(ext)) {
    if (!extensions.hasOwnProperty(name)) {
      throw Error('Extension named ' + name + ' is not registered!');
    }
    return extensions[name];

    // Setter
  } else {

else is not necessary here since all if branches return, consider removing it to reduce nesting and make code more readable.

    // Expand extension if it's wrapped in a function
    if (typeof ext === 'function') {
      ext = ext();
    }

    // Ensure extension is an array
    if (!showdown.helper.isArray(ext)) {
      ext = [ext];
    }

    var validExtension = validate(ext, name);

    if (validExtension.valid) {
      extensions[name] = ext;
    } else {
      throw Error(validExtension.error);
    }
  }
};

/**
 * Gets all extensions registered
 * @returns {{}}
 */
showdown.getAllExtensions = function () {
  'use strict';
  return extensions;
};

/**
 * Remove an extension
 * @param {string} name
 */
showdown.removeExtension = function (name) {
  'use strict';
  delete extensions[name];
};

/**
 * Removes all extensions
 */
showdown.resetExtensions = function () {
  'use strict';
  extensions = {};
};

/**
 * Validate extension
 * @param {array} extension
 * @param {string} name
 * @returns {{valid: boolean, error: string}}
 */
function validate (extension, name) {
  'use strict';

  var errMsg = (name) ? 'Error in ' + name + ' extension->' : 'Error in unnamed extension',
      ret = {
        valid: true,
        error: ''
      };

  if (!showdown.helper.isArray(extension)) {
    extension = [extension];
  }

  for (var i = 0; i < extension.length; ++i) {
    var baseMsg = errMsg + ' sub-extension ' + i + ': ',
        ext = extension[i];
    if (typeof ext !== 'object') {
      ret.valid = false;
      ret.error = baseMsg + 'must be an object, but ' + typeof ext + ' given';
      return ret;
    }

    if (!showdown.helper.isString(ext.type)) {
      ret.valid = false;
      ret.error = baseMsg + 'property "type" must be a string, but ' + typeof ext.type + ' given';
      return ret;
    }

    var type = ext.type = ext.type.toLowerCase();

    // normalize extension type
    if (type === 'language') {
      type = ext.type = 'lang';
    }

    if (type === 'html') {
      type = ext.type = 'output';
    }

    if (type !== 'lang' && type !== 'output' && type !== 'listener') {
      ret.valid = false;
      ret.error = baseMsg + 'type ' + type + ' is not recognized. Valid values: "lang/language", "output/html" or "listener"';
      return ret;
    }

    if (type === 'listener') {
      if (showdown.helper.isUndefined(ext.listeners)) {
        ret.valid = false;
        ret.error = baseMsg + '. Extensions of type "listener" must have a property called "listeners"';
        return ret;
      }
    } else {
      if (showdown.helper.isUndefined(ext.filter) && showdown.helper.isUndefined(ext.regex)) {
        ret.valid = false;
        ret.error = baseMsg + type + ' extensions must define either a "regex" property or a "filter" method';
        return ret;
      }
    }

    if (ext.listeners) {
      if (typeof ext.listeners !== 'object') {
        ret.valid = false;
        ret.error = baseMsg + '"listeners" property must be an object but ' + typeof ext.listeners + ' given';
        return ret;
      }
      for (var ln in ext.listeners) {
        if (ext.listeners.hasOwnProperty(ln)) {
          if (typeof ext.listeners[ln] !== 'function') {
            ret.valid = false;
            ret.error = baseMsg + '"listeners" property must be an hash of [event name]: [callback]. listeners.' + ln +
              ' must be a function but ' + typeof ext.listeners[ln] + ' given';
            return ret;
          }
        }
      }
    }

    if (ext.filter) {
      if (typeof ext.filter !== 'function') {
        ret.valid = false;
        ret.error = baseMsg + '"filter" must be a function, but ' + typeof ext.filter + ' given';
        return ret;
      }
    } else if (ext.regex) {
      if (showdown.helper.isString(ext.regex)) {
        ext.regex = new RegExp(ext.regex, 'g');
      }
      if (!(ext.regex instanceof RegExp)) {
        ret.valid = false;
        ret.error = baseMsg + '"regex" property must either be a string or a RegExp object, but ' + typeof ext.regex + ' given';
        return ret;
      }
      if (showdown.helper.isUndefined(ext.replace)) {
        ret.valid = false;
        ret.error = baseMsg + '"regex" extensions must implement a replace string or function';
        return ret;
      }
    }
  }
  return ret;
}

/**
 * Validate extension
 * @param {object} ext
 * @returns {boolean}
 */
showdown.validateExtension = function (ext) {
  'use strict';

  var validateExtension = validate(ext, null);
  if (!validateExtension.valid) {
    console.warn(validateExtension.error);
    return false;
  }
  return true;
};

/**
 * showdownjs helper functions
 */

if (!showdown.hasOwnProperty('helper')) {
  showdown.helper = {};
}

/**
 * Check if var is string
 * @static
 * @param {string} a
 * @returns {boolean}
 */
showdown.helper.isString = function (a) {
  'use strict';
  return (typeof a === 'string' || a instanceof String);
};

/**
 * Check if var is a function
 * @static
 * @param {*} a
 * @returns {boolean}
 */
showdown.helper.isFunction = function (a) {
  'use strict';
  var getType = {};
  return a && getType.toString.call(a) === '[object Function]';
};

/**
 * isArray helper function
 * @static
 * @param {*} a
 * @returns {boolean}
 */
showdown.helper.isArray = function (a) {
  'use strict';
  return Array.isArray(a);
};

/**
 * Check if value is undefined
 * @static
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
 */
showdown.helper.isUndefined = function (value) {
  'use strict';
  return typeof value === 'undefined';
};

/**
 * ForEach helper function
 * Iterates over Arrays and Objects (own properties only)
 * @static
 * @param {*} obj
 * @param {function} callback Accepts 3 params: 1. value, 2. key, 3. the original array/object
 */
showdown.helper.forEach = function (obj, callback) {
  'use strict';
  // check if obj is defined
  if (showdown.helper.isUndefined(obj)) {
    throw new Error('obj param is required');
  }

  if (showdown.helper.isUndefined(callback)) {
    throw new Error('callback param is required');
  }

  if (!showdown.helper.isFunction(callback)) {
    throw new Error('callback param must be a function/closure');
  }

  if (typeof obj.forEach === 'function') {
    obj.forEach(callback);
  } else if (showdown.helper.isArray(obj)) {
    for (var i = 0; i < obj.length; i++) {
      callback(obj[i], i, obj);
    }
  } else if (typeof (obj) === 'object') {
    for (var prop in obj) {
      if (obj.hasOwnProperty(prop)) {
        callback(obj[prop], prop, obj);
      }
    }
  } else {
    throw new Error('obj does not seem to be an array or an iterable object');
  }
};

/**
 * Standardidize extension name
 * @static
 * @param {string} s extension name
 * @returns {string}
 */
showdown.helper.stdExtName = function (s) {
  'use strict';
  return s.replace(/[_?*+\/\\.^-]/g, '').replace(/\s/g, '').toLowerCase();
};

function escapeCharactersCallback (wholeMatch, m1) {
  'use strict';
  var charCodeToEscape = m1.charCodeAt(0);
  return '¨E' + charCodeToEscape + 'E';
}

/**
 * Callback used to escape characters when passing through String.replace
 * @static
 * @param {string} wholeMatch
 * @param {string} m1
 * @returns {string}
 */
showdown.helper.escapeCharactersCallback = escapeCharactersCallback;

/**
 * Escape characters in a string
 * @static
 * @param {string} text
 * @param {string} charsToEscape
 * @param {boolean} afterBackslash
 * @returns {XML|string|void|*}
 */
showdown.helper.escapeCharacters = function (text, charsToEscape, afterBackslash) {
  'use strict';
  // First we have to escape the escape characters so that
  // we can build a character class out of them
  var regexString = '([' + charsToEscape.replace(/([\[\]\\])/g, '\\$1') + '])';

  if (afterBackslash) {
    regexString = '\\\\' + regexString;
  }

  var regex = new RegExp(regexString, 'g');
  text = text.replace(regex, escapeCharactersCallback);

  return text;
};

/**
 * Unescape HTML entities
 * @param txt
 * @returns {string}
 */
showdown.helper.unescapeHTMLEntities = function (txt) {
  'use strict';

  return txt
    .replace(/&quot;/g, '"')
    .replace(/&lt;/g, '<')
    .replace(/&gt;/g, '>')
    .replace(/&amp;/g, '&');
};

var rgxFindMatchPos = function (str, left, right, flags) {
  'use strict';
  var f = flags || '',
      g = f.indexOf('g') > -1,
      x = new RegExp(left + '|' + right, 'g' + f.replace(/g/g, '')),
      l = new RegExp(left, f.replace(/g/g, '')),
      pos = [],
      t, s, m, start, end;

  do {
    t = 0;
    while ((m = x.exec(str))) {
      if (l.test(m[0])) {
        if (!(t++)) {
          s = x.lastIndex;
          start = s - m[0].length;
        }
      } else if (t) {
        if (!--t) {
          end = m.index + m[0].length;
          var obj = {
            left: {start: start, end: s},
            match: {start: s, end: m.index},
            right: {start: m.index, end: end},
            wholeMatch: {start: start, end: end}
          };
          pos.push(obj);
          if (!g) {
            return pos;
          }
        }
      }
    }
  } while (t && (x.lastIndex = s));

  return pos;
};

/**
 * matchRecursiveRegExp
 *
 * (c) 2007 Steven Levithan <stevenlevithan.com>
 * MIT License
 *
 * Accepts a string to search, a left and right format delimiter
 * as regex patterns, and optional regex flags. Returns an array
 * of matches, allowing nested instances of left/right delimiters.
 * Use the "g" flag to return all matches, otherwise only the
 * first is returned. Be careful to ensure that the left and
 * right format delimiters produce mutually exclusive matches.
 * Backreferences are not supported within the right delimiter
 * due to how it is internally combined with the left delimiter.
 * When matching strings whose format delimiters are unbalanced
 * to the left or right, the output is intentionally as a
 * conventional regex library with recursion support would
 * produce, e.g. "<<x>" and "<x>>" both produce ["x"] when using
 * "<" and ">" as the delimiters (both strings contain a single,
 * balanced instance of "<x>").
 *
 * examples:
 * matchRecursiveRegExp("test", "\\(", "\\)")
 * returns: []
 * matchRecursiveRegExp("<t<<e>><s>>t<>", "<", ">", "g")
 * returns: ["t<<e>><s>", ""]
 * matchRecursiveRegExp("<div id=\"x\">test</div>", "<div\\b[^>]*>", "</div>", "gi")
 * returns: ["test"]
 */
showdown.helper.matchRecursiveRegExp = function (str, left, right, flags) {
  'use strict';

  var matchPos = rgxFindMatchPos (str, left, right, flags),
      results = [];

  for (var i = 0; i < matchPos.length; ++i) {
    results.push([
      str.slice(matchPos[i].wholeMatch.start, matchPos[i].wholeMatch.end),
      str.slice(matchPos[i].match.start, matchPos[i].match.end),
      str.slice(matchPos[i].left.start, matchPos[i].left.end),
      str.slice(matchPos[i].right.start, matchPos[i].right.end)
    ]);
  }
  return results;
};

/**
 *
 * @param {string} str
 * @param {string|function} replacement
 * @param {string} left
 * @param {string} right
 * @param {string} flags
 * @returns {string}
 */
showdown.helper.replaceRecursiveRegExp = function (str, replacement, left, right, flags) {
  'use strict';

  if (!showdown.helper.isFunction(replacement)) {
    var repStr = replacement;
    replacement = function () {
      return repStr;
    };
  }

  var matchPos = rgxFindMatchPos(str, left, right, flags),
      finalStr = str,
      lng = matchPos.length;

  if (lng > 0) {
    var bits = [];
    if (matchPos[0].wholeMatch.start !== 0) {
      bits.push(str.slice(0, matchPos[0].wholeMatch.start));
    }
    for (var i = 0; i < lng; ++i) {
      bits.push(
        replacement(

The call to replacement seems to have too many arguments starting with str.slice(matchPos.i.wholeMatch.start, matchPos.i.wholeMatch.end).

          str.slice(matchPos[i].wholeMatch.start, matchPos[i].wholeMatch.end),
          str.slice(matchPos[i].match.start, matchPos[i].match.end),
          str.slice(matchPos[i].left.start, matchPos[i].left.end),
          str.slice(matchPos[i].right.start, matchPos[i].right.end)
        )
      );
      if (i < lng - 1) {
        bits.push(str.slice(matchPos[i].wholeMatch.end, matchPos[i + 1].wholeMatch.start));
      }
    }
    if (matchPos[lng - 1].wholeMatch.end < str.length) {
      bits.push(str.slice(matchPos[lng - 1].wholeMatch.end));
    }
    finalStr = bits.join('');
  }
  return finalStr;
};

/**
 * Returns the index within the passed String object of the first occurrence of the specified regex,
 * starting the search at fromIndex. Returns -1 if the value is not found.
 *
 * @param {string} str string to search
 * @param {RegExp} regex Regular expression to search
 * @param {int} [fromIndex = 0] Index to start the search
 * @returns {Number}
 * @throws InvalidArgumentError
 */
showdown.helper.regexIndexOf = function (str, regex, fromIndex) {
  'use strict';
  if (!showdown.helper.isString(str)) {
    throw 'InvalidArgumentError: first parameter of showdown.helper.regexIndexOf function must be a string';
  }
  if (regex instanceof RegExp === false) {
    throw 'InvalidArgumentError: second parameter of showdown.helper.regexIndexOf function must be an instance of RegExp';
  }
  var indexOf = str.substring(fromIndex || 0).search(regex);
  return (indexOf >= 0) ? (indexOf + (fromIndex || 0)) : indexOf;
};

/**
 * Splits the passed string object at the defined index, and returns an array composed of the two substrings
 * @param {string} str string to split
 * @param {int} index index to split string at
 * @returns {[string,string]}
 * @throws InvalidArgumentError
 */
showdown.helper.splitAtIndex = function (str, index) {
  'use strict';
  if (!showdown.helper.isString(str)) {
    throw 'InvalidArgumentError: first parameter of showdown.helper.regexIndexOf function must be a string';
  }
  return [str.substring(0, index), str.substring(index)];
};

/**
 * Obfuscate an e-mail address through the use of Character Entities,
 * transforming ASCII characters into their equivalent decimal or hex entities.
 *
 * Since it has a random component, subsequent calls to this function produce different results
 *
 * @param {string} mail
 * @returns {string}
 */
showdown.helper.encodeEmailAddress = function (mail) {
  'use strict';
  var encode = [
    function (ch) {
      return '&#' + ch.charCodeAt(0) + ';';
    },
    function (ch) {
      return '&#x' + ch.charCodeAt(0).toString(16) + ';';
    },
    function (ch) {
      return ch;
    }
  ];

  mail = mail.replace(/./g, function (ch) {
    if (ch === '@') {
      // this *must* be encoded. I insist.
      ch = encode[Math.floor(Math.random() * 2)](ch);
    } else {
      var r = Math.random();
      // roughly 10% raw, 45% hex, 45% dec
      ch = (
        r > 0.9 ? encode[2](ch) : r > 0.45 ? encode[1](ch) : encode[0](ch)
      );
    }
    return ch;
  });

  return mail;
};

/**
 *
 * @param str
 * @param targetLength
 * @param padString
 * @returns {string}
 */
showdown.helper.padEnd = function padEnd (str, targetLength, padString) {
  'use strict';
  /*jshint bitwise: false*/
  // eslint-disable-next-line space-infix-ops
  targetLength = targetLength>>0; //floor if number or convert non-number to 0;
  /*jshint bitwise: true*/
  padString = String(padString || ' ');
  if (str.length > targetLength) {
    return String(str);
  } else {

else is not necessary here since all if branches return, consider removing it to reduce nesting and make code more readable.

    targetLength = targetLength - str.length;
    if (targetLength > padString.length) {
      padString += padString.repeat(targetLength / padString.length); //append to original to ensure we are longer than needed
    }
    return String(str) + padString.slice(0,targetLength);
  }
};

/**
 * POLYFILLS
 */
// use this instead of builtin is undefined for IE8 compatibility
if (typeof console === 'undefined') {
  console = {
    warn: function (msg) {
      'use strict';
      alert(msg);

The alert UI element is often considered obtrusive and is generally only used as a temporary measure. Consider replacing it with another UI element.

    },
    log: function (msg) {
      'use strict';
      alert(msg);

The alert UI element is often considered obtrusive and is generally only used as a temporary measure. Consider replacing it with another UI element.

    },
    error: function (msg) {
      'use strict';
      throw msg;
    }
  };
}

/**
 * Common regexes.
 * We declare some common regexes to improve performance
 */
showdown.helper.regexes = {
  asteriskDashAndColon: /([*_:~])/g
};

/**
 * EMOJIS LIST
 */
showdown.helper.emojis = {
  '+1':'\ud83d\udc4d',
  '-1':'\ud83d\udc4e',
  '100':'\ud83d\udcaf',
  '1234':'\ud83d\udd22',
  '1st_place_medal':'\ud83e\udd47',
  '2nd_place_medal':'\ud83e\udd48',
  '3rd_place_medal':'\ud83e\udd49',
  '8ball':'\ud83c\udfb1',
  'a':'\ud83c\udd70\ufe0f',
  'ab':'\ud83c\udd8e',
  'abc':'\ud83d\udd24',
  'abcd':'\ud83d\udd21',
  'accept':'\ud83c\ude51',
  'aerial_tramway':'\ud83d\udea1',
  'airplane':'\u2708\ufe0f',
  'alarm_clock':'\u23f0',
  'alembic':'\u2697\ufe0f',
  'alien':'\ud83d\udc7d',
  'ambulance':'\ud83d\ude91',
  'amphora':'\ud83c\udffa',
  'anchor':'\u2693\ufe0f',
  'angel':'\ud83d\udc7c',
  'anger':'\ud83d\udca2',
  'angry':'\ud83d\ude20',
  'anguished':'\ud83d\ude27',
  'ant':'\ud83d\udc1c',
  'apple':'\ud83c\udf4e',
  'aquarius':'\u2652\ufe0f',
  'aries':'\u2648\ufe0f',
  'arrow_backward':'\u25c0\ufe0f',
  'arrow_double_down':'\u23ec',
  'arrow_double_up':'\u23eb',
  'arrow_down':'\u2b07\ufe0f',
  'arrow_down_small':'\ud83d\udd3d',
  'arrow_forward':'\u25b6\ufe0f',
  'arrow_heading_down':'\u2935\ufe0f',
  'arrow_heading_up':'\u2934\ufe0f',
  'arrow_left':'\u2b05\ufe0f',
  'arrow_lower_left':'\u2199\ufe0f',
  'arrow_lower_right':'\u2198\ufe0f',
  'arrow_right':'\u27a1\ufe0f',
  'arrow_right_hook':'\u21aa\ufe0f',
  'arrow_up':'\u2b06\ufe0f',
  'arrow_up_down':'\u2195\ufe0f',
  'arrow_up_small':'\ud83d\udd3c',
  'arrow_upper_left':'\u2196\ufe0f',
  'arrow_upper_right':'\u2197\ufe0f',
  'arrows_clockwise':'\ud83d\udd03',
  'arrows_counterclockwise':'\ud83d\udd04',
  'art':'\ud83c\udfa8',
  'articulated_lorry':'\ud83d\ude9b',
  'artificial_satellite':'\ud83d\udef0',
  'astonished':'\ud83d\ude32',
  'athletic_shoe':'\ud83d\udc5f',
  'atm':'\ud83c\udfe7',
  'atom_symbol':'\u269b\ufe0f',
  'avocado':'\ud83e\udd51',
  'b':'\ud83c\udd71\ufe0f',
  'baby':'\ud83d\udc76',
  'baby_bottle':'\ud83c\udf7c',
  'baby_chick':'\ud83d\udc24',
  'baby_symbol':'\ud83d\udebc',
  'back':'\ud83d\udd19',
  'bacon':'\ud83e\udd53',
  'badminton':'\ud83c\udff8',
  'baggage_claim':'\ud83d\udec4',
  'baguette_bread':'\ud83e\udd56',
  'balance_scale':'\u2696\ufe0f',
  'balloon':'\ud83c\udf88',
  'ballot_box':'\ud83d\uddf3',
  'ballot_box_with_check':'\u2611\ufe0f',
  'bamboo':'\ud83c\udf8d',
  'banana':'\ud83c\udf4c',
  'bangbang':'\u203c\ufe0f',
  'bank':'\ud83c\udfe6',
  'bar_chart':'\ud83d\udcca',
  'barber':'\ud83d\udc88',
  'baseball':'\u26be\ufe0f',
  'basketball':'\ud83c\udfc0',
  'basketball_man':'\u26f9\ufe0f',
  'basketball_woman':'\u26f9\ufe0f‍\u2640\ufe0f',
  'bat':'\ud83e\udd87',
  'bath':'\ud83d\udec0',
  'bathtub':'\ud83d\udec1',
  'battery':'\ud83d\udd0b',
  'beach_umbrella':'\ud83c\udfd6',
  'bear':'\ud83d\udc3b',
  'bed':'\ud83d\udecf',
  'bee':'\ud83d\udc1d',
  'beer':'\ud83c\udf7a',
  'beers':'\ud83c\udf7b',
  'beetle':'\ud83d\udc1e',
  'beginner':'\ud83d\udd30',
  'bell':'\ud83d\udd14',
  'bellhop_bell':'\ud83d\udece',
  'bento':'\ud83c\udf71',
  'biking_man':'\ud83d\udeb4',
  'bike':'\ud83d\udeb2',
  'biking_woman':'\ud83d\udeb4‍\u2640\ufe0f',
  'bikini':'\ud83d\udc59',
  'biohazard':'\u2623\ufe0f',
  'bird':'\ud83d\udc26',
  'birthday':'\ud83c\udf82',
  'black_circle':'\u26ab\ufe0f',
  'black_flag':'\ud83c\udff4',
  'black_heart':'\ud83d\udda4',
  'black_joker':'\ud83c\udccf',
  'black_large_square':'\u2b1b\ufe0f',
  'black_medium_small_square':'\u25fe\ufe0f',
  'black_medium_square':'\u25fc\ufe0f',
  'black_nib':'\u2712\ufe0f',
  'black_small_square':'\u25aa\ufe0f',
  'black_square_button':'\ud83d\udd32',
  'blonde_man':'\ud83d\udc71',
  'blonde_woman':'\ud83d\udc71‍\u2640\ufe0f',
  'blossom':'\ud83c\udf3c',
  'blowfish':'\ud83d\udc21',
  'blue_book':'\ud83d\udcd8',
  'blue_car':'\ud83d\ude99',
  'blue_heart':'\ud83d\udc99',
  'blush':'\ud83d\ude0a',
  'boar':'\ud83d\udc17',
  'boat':'\u26f5\ufe0f',
  'bomb':'\ud83d\udca3',
  'book':'\ud83d\udcd6',
  'bookmark':'\ud83d\udd16',
  'bookmark_tabs':'\ud83d\udcd1',
  'books':'\ud83d\udcda',
  'boom':'\ud83d\udca5',
  'boot':'\ud83d\udc62',
  'bouquet':'\ud83d\udc90',
  'bowing_man':'\ud83d\ude47',
  'bow_and_arrow':'\ud83c\udff9',
  'bowing_woman':'\ud83d\ude47‍\u2640\ufe0f',
  'bowling':'\ud83c\udfb3',
  'boxing_glove':'\ud83e\udd4a',
  'boy':'\ud83d\udc66',
  'bread':'\ud83c\udf5e',
  'bride_with_veil':'\ud83d\udc70',
  'bridge_at_night':'\ud83c\udf09',
  'briefcase':'\ud83d\udcbc',
  'broken_heart':'\ud83d\udc94',
  'bug':'\ud83d\udc1b',
  'building_construction':'\ud83c\udfd7',
  'bulb':'\ud83d\udca1',
  'bullettrain_front':'\ud83d\ude85',
  'bullettrain_side':'\ud83d\ude84',
  'burrito':'\ud83c\udf2f',
  'bus':'\ud83d\ude8c',
  'business_suit_levitating':'\ud83d\udd74',
  'busstop':'\ud83d\ude8f',
  'bust_in_silhouette':'\ud83d\udc64',
  'busts_in_silhouette':'\ud83d\udc65',
  'butterfly':'\ud83e\udd8b',
  'cactus':'\ud83c\udf35',
  'cake':'\ud83c\udf70',
  'calendar':'\ud83d\udcc6',
  'call_me_hand':'\ud83e\udd19',
  'calling':'\ud83d\udcf2',
  'camel':'\ud83d\udc2b',
  'camera':'\ud83d\udcf7',
  'camera_flash':'\ud83d\udcf8',
  'camping':'\ud83c\udfd5',
  'cancer':'\u264b\ufe0f',
  'candle':'\ud83d\udd6f',
  'candy':'\ud83c\udf6c',
  'canoe':'\ud83d\udef6',
  'capital_abcd':'\ud83d\udd20',
  'capricorn':'\u2651\ufe0f',
  'car':'\ud83d\ude97',
  'card_file_box':'\ud83d\uddc3',
  'card_index':'\ud83d\udcc7',
  'card_index_dividers':'\ud83d\uddc2',
  'carousel_horse':'\ud83c\udfa0',
  'carrot':'\ud83e\udd55',
  'cat':'\ud83d\udc31',
  'cat2':'\ud83d\udc08',
  'cd':'\ud83d\udcbf',
  'chains':'\u26d3',
  'champagne':'\ud83c\udf7e',
  'chart':'\ud83d\udcb9',
  'chart_with_downwards_trend':'\ud83d\udcc9',
  'chart_with_upwards_trend':'\ud83d\udcc8',
  'checkered_flag':'\ud83c\udfc1',
  'cheese':'\ud83e\uddc0',
  'cherries':'\ud83c\udf52',
  'cherry_blossom':'\ud83c\udf38',
  'chestnut':'\ud83c\udf30',
  'chicken':'\ud83d\udc14',
  'children_crossing':'\ud83d\udeb8',
  'chipmunk':'\ud83d\udc3f',
  'chocolate_bar':'\ud83c\udf6b',
  'christmas_tree':'\ud83c\udf84',
  'church':'\u26ea\ufe0f',
  'cinema':'\ud83c\udfa6',
  'circus_tent':'\ud83c\udfaa',
  'city_sunrise':'\ud83c\udf07',
  'city_sunset':'\ud83c\udf06',
  'cityscape':'\ud83c\udfd9',
  'cl':'\ud83c\udd91',
  'clamp':'\ud83d\udddc',
  'clap':'\ud83d\udc4f',
  'clapper':'\ud83c\udfac',
  'classical_building':'\ud83c\udfdb',
  'clinking_glasses':'\ud83e\udd42',
  'clipboard':'\ud83d\udccb',
  'clock1':'\ud83d\udd50',
  'clock10':'\ud83d\udd59',
  'clock1030':'\ud83d\udd65',
  'clock11':'\ud83d\udd5a',
  'clock1130':'\ud83d\udd66',
  'clock12':'\ud83d\udd5b',
  'clock1230':'\ud83d\udd67',
  'clock130':'\ud83d\udd5c',
  'clock2':'\ud83d\udd51',
  'clock230':'\ud83d\udd5d',
  'clock3':'\ud83d\udd52',
  'clock330':'\ud83d\udd5e',
  'clock4':'\ud83d\udd53',
  'clock430':'\ud83d\udd5f',
  'clock5':'\ud83d\udd54',
  'clock530':'\ud83d\udd60',
  'clock6':'\ud83d\udd55',
  'clock630':'\ud83d\udd61',
  'clock7':'\ud83d\udd56',
  'clock730':'\ud83d\udd62',
  'clock8':'\ud83d\udd57',
  'clock830':'\ud83d\udd63',
  'clock9':'\ud83d\udd58',
  'clock930':'\ud83d\udd64',
  'closed_book':'\ud83d\udcd5',
  'closed_lock_with_key':'\ud83d\udd10',
  'closed_umbrella':'\ud83c\udf02',
  'cloud':'\u2601\ufe0f',
  'cloud_with_lightning':'\ud83c\udf29',
  'cloud_with_lightning_and_rain':'\u26c8',
  'cloud_with_rain':'\ud83c\udf27',
  'cloud_with_snow':'\ud83c\udf28',
  'clown_face':'\ud83e\udd21',
  'clubs':'\u2663\ufe0f',
  'cocktail':'\ud83c\udf78',
  'coffee':'\u2615\ufe0f',
  'coffin':'\u26b0\ufe0f',
  'cold_sweat':'\ud83d\ude30',
  'comet':'\u2604\ufe0f',
  'computer':'\ud83d\udcbb',
  'computer_mouse':'\ud83d\uddb1',
  'confetti_ball':'\ud83c\udf8a',
  'confounded':'\ud83d\ude16',
  'confused':'\ud83d\ude15',
  'congratulations':'\u3297\ufe0f',
  'construction':'\ud83d\udea7',
  'construction_worker_man':'\ud83d\udc77',
  'construction_worker_woman':'\ud83d\udc77‍\u2640\ufe0f',
  'control_knobs':'\ud83c\udf9b',
  'convenience_store':'\ud83c\udfea',
  'cookie':'\ud83c\udf6a',
  'cool':'\ud83c\udd92',
  'policeman':'\ud83d\udc6e',
  'copyright':'\u00a9\ufe0f',
  'corn':'\ud83c\udf3d',
  'couch_and_lamp':'\ud83d\udecb',
  'couple':'\ud83d\udc6b',
  'couple_with_heart_woman_man':'\ud83d\udc91',
  'couple_with_heart_man_man':'\ud83d\udc68‍\u2764\ufe0f‍\ud83d\udc68',
  'couple_with_heart_woman_woman':'\ud83d\udc69‍\u2764\ufe0f‍\ud83d\udc69',
  'couplekiss_man_man':'\ud83d\udc68‍\u2764\ufe0f‍\ud83d\udc8b‍\ud83d\udc68',
  'couplekiss_man_woman':'\ud83d\udc8f',
  'couplekiss_woman_woman':'\ud83d\udc69‍\u2764\ufe0f‍\ud83d\udc8b‍\ud83d\udc69',
  'cow':'\ud83d\udc2e',
  'cow2':'\ud83d\udc04',
  'cowboy_hat_face':'\ud83e\udd20',
  'crab':'\ud83e\udd80',
  'crayon':'\ud83d\udd8d',
  'credit_card':'\ud83d\udcb3',
  'crescent_moon':'\ud83c\udf19',
  'cricket':'\ud83c\udfcf',
  'crocodile':'\ud83d\udc0a',
  'croissant':'\ud83e\udd50',
  'crossed_fingers':'\ud83e\udd1e',
  'crossed_flags':'\ud83c\udf8c',
  'crossed_swords':'\u2694\ufe0f',
  'crown':'\ud83d\udc51',
  'cry':'\ud83d\ude22',
  'crying_cat_face':'\ud83d\ude3f',
  'crystal_ball':'\ud83d\udd2e',
  'cucumber':'\ud83e\udd52',
  'cupid':'\ud83d\udc98',
  'curly_loop':'\u27b0',
  'currency_exchange':'\ud83d\udcb1',
  'curry':'\ud83c\udf5b',
  'custard':'\ud83c\udf6e',
  'customs':'\ud83d\udec3',
  'cyclone':'\ud83c\udf00',
  'dagger':'\ud83d\udde1',
  'dancer':'\ud83d\udc83',
  'dancing_women':'\ud83d\udc6f',
  'dancing_men':'\ud83d\udc6f‍\u2642\ufe0f',
  'dango':'\ud83c\udf61',
  'dark_sunglasses':'\ud83d\udd76',
  'dart':'\ud83c\udfaf',
  'dash':'\ud83d\udca8',
  'date':'\ud83d\udcc5',
  'deciduous_tree':'\ud83c\udf33',
  'deer':'\ud83e\udd8c',
  'department_store':'\ud83c\udfec',
  'derelict_house':'\ud83c\udfda',
  'desert':'\ud83c\udfdc',
  'desert_island':'\ud83c\udfdd',
  'desktop_computer':'\ud83d\udda5',
  'male_detective':'\ud83d\udd75\ufe0f',
  'diamond_shape_with_a_dot_inside':'\ud83d\udca0',
  'diamonds':'\u2666\ufe0f',
  'disappointed':'\ud83d\ude1e',
  'disappointed_relieved':'\ud83d\ude25',
  'dizzy':'\ud83d\udcab',
  'dizzy_face':'\ud83d\ude35',
  'do_not_litter':'\ud83d\udeaf',
  'dog':'\ud83d\udc36',
  'dog2':'\ud83d\udc15',
  'dollar':'\ud83d\udcb5',
  'dolls':'\ud83c\udf8e',
  'dolphin':'\ud83d\udc2c',
  'door':'\ud83d\udeaa',
  'doughnut':'\ud83c\udf69',
  'dove':'\ud83d\udd4a',
  'dragon':'\ud83d\udc09',
  'dragon_face':'\ud83d\udc32',
  'dress':'\ud83d\udc57',
  'dromedary_camel':'\ud83d\udc2a',
  'drooling_face':'\ud83e\udd24',
  'droplet':'\ud83d\udca7',
  'drum':'\ud83e\udd41',
  'duck':'\ud83e\udd86',
  'dvd':'\ud83d\udcc0',
  'e-mail':'\ud83d\udce7',
  'eagle':'\ud83e\udd85',
  'ear':'\ud83d\udc42',
  'ear_of_rice':'\ud83c\udf3e',
  'earth_africa':'\ud83c\udf0d',
  'earth_americas':'\ud83c\udf0e',
  'earth_asia':'\ud83c\udf0f',
  'egg':'\ud83e\udd5a',
  'eggplant':'\ud83c\udf46',
  'eight_pointed_black_star':'\u2734\ufe0f',
  'eight_spoked_asterisk':'\u2733\ufe0f',
  'electric_plug':'\ud83d\udd0c',
  'elephant':'\ud83d\udc18',
  'email':'\u2709\ufe0f',
  'end':'\ud83d\udd1a',
  'envelope_with_arrow':'\ud83d\udce9',
  'euro':'\ud83d\udcb6',
  'european_castle':'\ud83c\udff0',
  'european_post_office':'\ud83c\udfe4',
  'evergreen_tree':'\ud83c\udf32',
  'exclamation':'\u2757\ufe0f',
  'expressionless':'\ud83d\ude11',
  'eye':'\ud83d\udc41',
  'eye_speech_bubble':'\ud83d\udc41‍\ud83d\udde8',
  'eyeglasses':'\ud83d\udc53',
  'eyes':'\ud83d\udc40',
  'face_with_head_bandage':'\ud83e\udd15',
  'face_with_thermometer':'\ud83e\udd12',
  'fist_oncoming':'\ud83d\udc4a',
  'factory':'\ud83c\udfed',
  'fallen_leaf':'\ud83c\udf42',
  'family_man_woman_boy':'\ud83d\udc6a',
  'family_man_boy':'\ud83d\udc68‍\ud83d\udc66',
  'family_man_boy_boy':'\ud83d\udc68‍\ud83d\udc66‍\ud83d\udc66',
  'family_man_girl':'\ud83d\udc68‍\ud83d\udc67',
  'family_man_girl_boy':'\ud83d\udc68‍\ud83d\udc67‍\ud83d\udc66',
  'family_man_girl_girl':'\ud83d\udc68‍\ud83d\udc67‍\ud83d\udc67',
  'family_man_man_boy':'\ud83d\udc68‍\ud83d\udc68‍\ud83d\udc66',
  'family_man_man_boy_boy':'\ud83d\udc68‍\ud83d\udc68‍\ud83d\udc66‍\ud83d\udc66',
  'family_man_man_girl':'\ud83d\udc68‍\ud83d\udc68‍\ud83d\udc67',
  'family_man_man_girl_boy':'\ud83d\udc68‍\ud83d\udc68‍\ud83d\udc67‍\ud83d\udc66',
  'family_man_man_girl_girl':'\ud83d\udc68‍\ud83d\udc68‍\ud83d\udc67‍\ud83d\udc67',
  'family_man_woman_boy_boy':'\ud83d\udc68‍\ud83d\udc69‍\ud83d\udc66‍\ud83d\udc66',
  'family_man_woman_girl':'\ud83d\udc68‍\ud83d\udc69‍\ud83d\udc67',
  'family_man_woman_girl_boy':'\ud83d\udc68‍\ud83d\udc69‍\ud83d\udc67‍\ud83d\udc66',
  'family_man_woman_girl_girl':'\ud83d\udc68‍\ud83d\udc69‍\ud83d\udc67‍\ud83d\udc67',
  'family_woman_boy':'\ud83d\udc69‍\ud83d\udc66',
  'family_woman_boy_boy':'\ud83d\udc69‍\ud83d\udc66‍\ud83d\udc66',
  'family_woman_girl':'\ud83d\udc69‍\ud83d\udc67',
  'family_woman_girl_boy':'\ud83d\udc69‍\ud83d\udc67‍\ud83d\udc66',
  'family_woman_girl_girl':'\ud83d\udc69‍\ud83d\udc67‍\ud83d\udc67',
  'family_woman_woman_boy':'\ud83d\udc69‍\ud83d\udc69‍\ud83d\udc66',
  'family_woman_woman_boy_boy':'\ud83d\udc69‍\ud83d\udc69‍\ud83d\udc66‍\ud83d\udc66',
  'family_woman_woman_girl':'\ud83d\udc69‍\ud83d\udc69‍\ud83d\udc67',
  'family_woman_woman_girl_boy':'\ud83d\udc69‍\ud83d\udc69‍\ud83d\udc67‍\ud83d\udc66',
  'family_woman_woman_girl_girl':'\ud83d\udc69‍\ud83d\udc69‍\ud83d\udc67‍\ud83d\udc67',
  'fast_forward':'\u23e9',
  'fax':'\ud83d\udce0',
  'fearful':'\ud83d\ude28',
  'feet':'\ud83d\udc3e',
  'female_detective':'\ud83d\udd75\ufe0f‍\u2640\ufe0f',
  'ferris_wheel':'\ud83c\udfa1',
  'ferry':'\u26f4',
  'field_hockey':'\ud83c\udfd1',
  'file_cabinet':'\ud83d\uddc4',
  'file_folder':'\ud83d\udcc1',
  'film_projector':'\ud83d\udcfd',
  'film_strip':'\ud83c\udf9e',
  'fire':'\ud83d\udd25',
  'fire_engine':'\ud83d\ude92',
  'fireworks':'\ud83c\udf86',
  'first_quarter_moon':'\ud83c\udf13',
  'first_quarter_moon_with_face':'\ud83c\udf1b',
  'fish':'\ud83d\udc1f',
  'fish_cake':'\ud83c\udf65',
  'fishing_pole_and_fish':'\ud83c\udfa3',
  'fist_raised':'\u270a',
  'fist_left':'\ud83e\udd1b',
  'fist_right':'\ud83e\udd1c',
  'flags':'\ud83c\udf8f',
  'flashlight':'\ud83d\udd26',
  'fleur_de_lis':'\u269c\ufe0f',
  'flight_arrival':'\ud83d\udeec',
  'flight_departure':'\ud83d\udeeb',
  'floppy_disk':'\ud83d\udcbe',
  'flower_playing_cards':'\ud83c\udfb4',
  'flushed':'\ud83d\ude33',
  'fog':'\ud83c\udf2b',
  'foggy':'\ud83c\udf01',
  'football':'\ud83c\udfc8',
  'footprints':'\ud83d\udc63',
  'fork_and_knife':'\ud83c\udf74',
  'fountain':'\u26f2\ufe0f',
  'fountain_pen':'\ud83d\udd8b',
  'four_leaf_clover':'\ud83c\udf40',
  'fox_face':'\ud83e\udd8a',
  'framed_picture':'\ud83d\uddbc',
  'free':'\ud83c\udd93',
  'fried_egg':'\ud83c\udf73',
  'fried_shrimp':'\ud83c\udf64',
  'fries':'\ud83c\udf5f',
  'frog':'\ud83d\udc38',
  'frowning':'\ud83d\ude26',
  'frowning_face':'\u2639\ufe0f',
  'frowning_man':'\ud83d\ude4d‍\u2642\ufe0f',
  'frowning_woman':'\ud83d\ude4d',
  'middle_finger':'\ud83d\udd95',
  'fuelpump':'\u26fd\ufe0f',
  'full_moon':'\ud83c\udf15',
  'full_moon_with_face':'\ud83c\udf1d',
  'funeral_urn':'\u26b1\ufe0f',
  'game_die':'\ud83c\udfb2',
  'gear':'\u2699\ufe0f',
  'gem':'\ud83d\udc8e',
  'gemini':'\u264a\ufe0f',
  'ghost':'\ud83d\udc7b',
  'gift':'\ud83c\udf81',
  'gift_heart':'\ud83d\udc9d',
  'girl':'\ud83d\udc67',
  'globe_with_meridians':'\ud83c\udf10',
  'goal_net':'\ud83e\udd45',
  'goat':'\ud83d\udc10',
  'golf':'\u26f3\ufe0f',
  'golfing_man':'\ud83c\udfcc\ufe0f',
  'golfing_woman':'\ud83c\udfcc\ufe0f‍\u2640\ufe0f',
  'gorilla':'\ud83e\udd8d',
  'grapes':'\ud83c\udf47',
  'green_apple':'\ud83c\udf4f',
  'green_book':'\ud83d\udcd7',
  'green_heart':'\ud83d\udc9a',
  'green_salad':'\ud83e\udd57',
  'grey_exclamation':'\u2755',
  'grey_question':'\u2754',
  'grimacing':'\ud83d\ude2c',
  'grin':'\ud83d\ude01',
  'grinning':'\ud83d\ude00',
  'guardsman':'\ud83d\udc82',
  'guardswoman':'\ud83d\udc82‍\u2640\ufe0f',
  'guitar':'\ud83c\udfb8',
  'gun':'\ud83d\udd2b',
  'haircut_woman':'\ud83d\udc87',
  'haircut_man':'\ud83d\udc87‍\u2642\ufe0f',
  'hamburger':'\ud83c\udf54',
  'hammer':'\ud83d\udd28',
  'hammer_and_pick':'\u2692',
  'hammer_and_wrench':'\ud83d\udee0',
  'hamster':'\ud83d\udc39',
  'hand':'\u270b',
  'handbag':'\ud83d\udc5c',
  'handshake':'\ud83e\udd1d',
  'hankey':'\ud83d\udca9',
  'hatched_chick':'\ud83d\udc25',
  'hatching_chick':'\ud83d\udc23',
  'headphones':'\ud83c\udfa7',
  'hear_no_evil':'\ud83d\ude49',
  'heart':'\u2764\ufe0f',
  'heart_decoration':'\ud83d\udc9f',
  'heart_eyes':'\ud83d\ude0d',
  'heart_eyes_cat':'\ud83d\ude3b',
  'heartbeat':'\ud83d\udc93',
  'heartpulse':'\ud83d\udc97',
  'hearts':'\u2665\ufe0f',
  'heavy_check_mark':'\u2714\ufe0f',
  'heavy_division_sign':'\u2797',
  'heavy_dollar_sign':'\ud83d\udcb2',
  'heavy_heart_exclamation':'\u2763\ufe0f',
  'heavy_minus_sign':'\u2796',
  'heavy_multiplication_x':'\u2716\ufe0f',
  'heavy_plus_sign':'\u2795',
  'helicopter':'\ud83d\ude81',
  'herb':'\ud83c\udf3f',
  'hibiscus':'\ud83c\udf3a',
  'high_brightness':'\ud83d\udd06',
  'high_heel':'\ud83d\udc60',
  'hocho':'\ud83d\udd2a',
  'hole':'\ud83d\udd73',
  'honey_pot':'\ud83c\udf6f',
  'horse':'\ud83d\udc34',
  'horse_racing':'\ud83c\udfc7',
  'hospital':'\ud83c\udfe5',
  'hot_pepper':'\ud83c\udf36',
  'hotdog':'\ud83c\udf2d',
  'hotel':'\ud83c\udfe8',
  'hotsprings':'\u2668\ufe0f',
  'hourglass':'\u231b\ufe0f',
  'hourglass_flowing_sand':'\u23f3',
  'house':'\ud83c\udfe0',
  'house_with_garden':'\ud83c\udfe1',
  'houses':'\ud83c\udfd8',
  'hugs':'\ud83e\udd17',
  'hushed':'\ud83d\ude2f',
  'ice_cream':'\ud83c\udf68',
  'ice_hockey':'\ud83c\udfd2',
  'ice_skate':'\u26f8',
  'icecream':'\ud83c\udf66',
  'id':'\ud83c\udd94',
  'ideograph_advantage':'\ud83c\ude50',
  'imp':'\ud83d\udc7f',
  'inbox_tray':'\ud83d\udce5',
  'incoming_envelope':'\ud83d\udce8',
  'tipping_hand_woman':'\ud83d\udc81',
  'information_source':'\u2139\ufe0f',
  'innocent':'\ud83d\ude07',
  'interrobang':'\u2049\ufe0f',
  'iphone':'\ud83d\udcf1',
  'izakaya_lantern':'\ud83c\udfee',
  'jack_o_lantern':'\ud83c\udf83',
  'japan':'\ud83d\uddfe',
  'japanese_castle':'\ud83c\udfef',
  'japanese_goblin':'\ud83d\udc7a',
  'japanese_ogre':'\ud83d\udc79',
  'jeans':'\ud83d\udc56',
  'joy':'\ud83d\ude02',
  'joy_cat':'\ud83d\ude39',
  'joystick':'\ud83d\udd79',
  'kaaba':'\ud83d\udd4b',
  'key':'\ud83d\udd11',
  'keyboard':'\u2328\ufe0f',
  'keycap_ten':'\ud83d\udd1f',
  'kick_scooter':'\ud83d\udef4',
  'kimono':'\ud83d\udc58',
  'kiss':'\ud83d\udc8b',
  'kissing':'\ud83d\ude17',
  'kissing_cat':'\ud83d\ude3d',
  'kissing_closed_eyes':'\ud83d\ude1a',
  'kissing_heart':'\ud83d\ude18',
  'kissing_smiling_eyes':'\ud83d\ude19',
  'kiwi_fruit':'\ud83e\udd5d',
  'koala':'\ud83d\udc28',
  'koko':'\ud83c\ude01',
  'label':'\ud83c\udff7',
  'large_blue_circle':'\ud83d\udd35',
  'large_blue_diamond':'\ud83d\udd37',
  'large_orange_diamond':'\ud83d\udd36',
  'last_quarter_moon':'\ud83c\udf17',
  'last_quarter_moon_with_face':'\ud83c\udf1c',
  'latin_cross':'\u271d\ufe0f',
  'laughing':'\ud83d\ude06',
  'leaves':'\ud83c\udf43',
  'ledger':'\ud83d\udcd2',
  'left_luggage':'\ud83d\udec5',
  'left_right_arrow':'\u2194\ufe0f',
  'leftwards_arrow_with_hook':'\u21a9\ufe0f',
  'lemon':'\ud83c\udf4b',
  'leo':'\u264c\ufe0f',
  'leopard':'\ud83d\udc06',
  'level_slider':'\ud83c\udf9a',
  'libra':'\u264e\ufe0f',
  'light_rail':'\ud83d\ude88',
  'link':'\ud83d\udd17',
  'lion':'\ud83e\udd81',
  'lips':'\ud83d\udc44',
  'lipstick':'\ud83d\udc84',
  'lizard':'\ud83e\udd8e',
  'lock':'\ud83d\udd12',
  'lock_with_ink_pen':'\ud83d\udd0f',
  'lollipop':'\ud83c\udf6d',
  'loop':'\u27bf',
  'loud_sound':'\ud83d\udd0a',
  'loudspeaker':'\ud83d\udce2',
  'love_hotel':'\ud83c\udfe9',
  'love_letter':'\ud83d\udc8c',
  'low_brightness':'\ud83d\udd05',
  'lying_face':'\ud83e\udd25',
  'm':'\u24c2\ufe0f',
  'mag':'\ud83d\udd0d',
  'mag_right':'\ud83d\udd0e',
  'mahjong':'\ud83c\udc04\ufe0f',
  'mailbox':'\ud83d\udceb',
  'mailbox_closed':'\ud83d\udcea',
  'mailbox_with_mail':'\ud83d\udcec',
  'mailbox_with_no_mail':'\ud83d\udced',
  'man':'\ud83d\udc68',
  'man_artist':'\ud83d\udc68‍\ud83c\udfa8',
  'man_astronaut':'\ud83d\udc68‍\ud83d\ude80',
  'man_cartwheeling':'\ud83e\udd38‍\u2642\ufe0f',
  'man_cook':'\ud83d\udc68‍\ud83c\udf73',
  'man_dancing':'\ud83d\udd7a',
  'man_facepalming':'\ud83e\udd26‍\u2642\ufe0f',
  'man_factory_worker':'\ud83d\udc68‍\ud83c\udfed',
  'man_farmer':'\ud83d\udc68‍\ud83c\udf3e',
  'man_firefighter':'\ud83d\udc68‍\ud83d\ude92',
  'man_health_worker':'\ud83d\udc68‍\u2695\ufe0f',
  'man_in_tuxedo':'\ud83e\udd35',
  'man_judge':'\ud83d\udc68‍\u2696\ufe0f',
  'man_juggling':'\ud83e\udd39‍\u2642\ufe0f',
  'man_mechanic':'\ud83d\udc68‍\ud83d\udd27',
  'man_office_worker':'\ud83d\udc68‍\ud83d\udcbc',
  'man_pilot':'\ud83d\udc68‍\u2708\ufe0f',
  'man_playing_handball':'\ud83e\udd3e‍\u2642\ufe0f',
  'man_playing_water_polo':'\ud83e\udd3d‍\u2642\ufe0f',
  'man_scientist':'\ud83d\udc68‍\ud83d\udd2c',
  'man_shrugging':'\ud83e\udd37‍\u2642\ufe0f',
  'man_singer':'\ud83d\udc68‍\ud83c\udfa4',
  'man_student':'\ud83d\udc68‍\ud83c\udf93',
  'man_teacher':'\ud83d\udc68‍\ud83c\udfeb',
  'man_technologist':'\ud83d\udc68‍\ud83d\udcbb',
  'man_with_gua_pi_mao':'\ud83d\udc72',
  'man_with_turban':'\ud83d\udc73',
  'tangerine':'\ud83c\udf4a',
  'mans_shoe':'\ud83d\udc5e',
  'mantelpiece_clock':'\ud83d\udd70',
  'maple_leaf':'\ud83c\udf41',
  'martial_arts_uniform':'\ud83e\udd4b',
  'mask':'\ud83d\ude37',
  'massage_woman':'\ud83d\udc86',
  'massage_man':'\ud83d\udc86‍\u2642\ufe0f',
  'meat_on_bone':'\ud83c\udf56',
  'medal_military':'\ud83c\udf96',
  'medal_sports':'\ud83c\udfc5',
  'mega':'\ud83d\udce3',
  'melon':'\ud83c\udf48',
  'memo':'\ud83d\udcdd',
  'men_wrestling':'\ud83e\udd3c‍\u2642\ufe0f',
  'menorah':'\ud83d\udd4e',
  'mens':'\ud83d\udeb9',
  'metal':'\ud83e\udd18',
  'metro':'\ud83d\ude87',
  'microphone':'\ud83c\udfa4',
  'microscope':'\ud83d\udd2c',
  'milk_glass':'\ud83e\udd5b',
  'milky_way':'\ud83c\udf0c',
  'minibus':'\ud83d\ude90',
  'minidisc':'\ud83d\udcbd',
  'mobile_phone_off':'\ud83d\udcf4',
  'money_mouth_face':'\ud83e\udd11',
  'money_with_wings':'\ud83d\udcb8',
  'moneybag':'\ud83d\udcb0',
  'monkey':'\ud83d\udc12',
  'monkey_face':'\ud83d\udc35',
  'monorail':'\ud83d\ude9d',
  'moon':'\ud83c\udf14',
  'mortar_board':'\ud83c\udf93',
  'mosque':'\ud83d\udd4c',
  'motor_boat':'\ud83d\udee5',
  'motor_scooter':'\ud83d\udef5',
  'motorcycle':'\ud83c\udfcd',
  'motorway':'\ud83d\udee3',
  'mount_fuji':'\ud83d\uddfb',
  'mountain':'\u26f0',
  'mountain_biking_man':'\ud83d\udeb5',
  'mountain_biking_woman':'\ud83d\udeb5‍\u2640\ufe0f',
  'mountain_cableway':'\ud83d\udea0',
  'mountain_railway':'\ud83d\ude9e',
  'mountain_snow':'\ud83c\udfd4',
  'mouse':'\ud83d\udc2d',
  'mouse2':'\ud83d\udc01',
  'movie_camera':'\ud83c\udfa5',
  'moyai':'\ud83d\uddff',
  'mrs_claus':'\ud83e\udd36',
  'muscle':'\ud83d\udcaa',
  'mushroom':'\ud83c\udf44',
  'musical_keyboard':'\ud83c\udfb9',
  'musical_note':'\ud83c\udfb5',
  'musical_score':'\ud83c\udfbc',
  'mute':'\ud83d\udd07',
  'nail_care':'\ud83d\udc85',
  'name_badge':'\ud83d\udcdb',
  'national_park':'\ud83c\udfde',
  'nauseated_face':'\ud83e\udd22',
  'necktie':'\ud83d\udc54',
  'negative_squared_cross_mark':'\u274e',
  'nerd_face':'\ud83e\udd13',
  'neutral_face':'\ud83d\ude10',
  'new':'\ud83c\udd95',
  'new_moon':'\ud83c\udf11',
  'new_moon_with_face':'\ud83c\udf1a',
  'newspaper':'\ud83d\udcf0',
  'newspaper_roll':'\ud83d\uddde',
  'next_track_button':'\u23ed',
  'ng':'\ud83c\udd96',
  'no_good_man':'\ud83d\ude45‍\u2642\ufe0f',
  'no_good_woman':'\ud83d\ude45',
  'night_with_stars':'\ud83c\udf03',
  'no_bell':'\ud83d\udd15',
  'no_bicycles':'\ud83d\udeb3',
  'no_entry':'\u26d4\ufe0f',
  'no_entry_sign':'\ud83d\udeab',
  'no_mobile_phones':'\ud83d\udcf5',
  'no_mouth':'\ud83d\ude36',
  'no_pedestrians':'\ud83d\udeb7',
  'no_smoking':'\ud83d\udead',
  'non-potable_water':'\ud83d\udeb1',
  'nose':'\ud83d\udc43',
  'notebook':'\ud83d\udcd3',
  'notebook_with_decorative_cover':'\ud83d\udcd4',
  'notes':'\ud83c\udfb6',
  'nut_and_bolt':'\ud83d\udd29',
  'o':'\u2b55\ufe0f',
  'o2':'\ud83c\udd7e\ufe0f',
  'ocean':'\ud83c\udf0a',
  'octopus':'\ud83d\udc19',
  'oden':'\ud83c\udf62',
  'office':'\ud83c\udfe2',
  'oil_drum':'\ud83d\udee2',
  'ok':'\ud83c\udd97',
  'ok_hand':'\ud83d\udc4c',
  'ok_man':'\ud83d\ude46‍\u2642\ufe0f',
  'ok_woman':'\ud83d\ude46',
  'old_key':'\ud83d\udddd',
  'older_man':'\ud83d\udc74',
  'older_woman':'\ud83d\udc75',
  'om':'\ud83d\udd49',
  'on':'\ud83d\udd1b',
  'oncoming_automobile':'\ud83d\ude98',
  'oncoming_bus':'\ud83d\ude8d',
  'oncoming_police_car':'\ud83d\ude94',
  'oncoming_taxi':'\ud83d\ude96',
  'open_file_folder':'\ud83d\udcc2',
  'open_hands':'\ud83d\udc50',
  'open_mouth':'\ud83d\ude2e',
  'open_umbrella':'\u2602\ufe0f',
  'ophiuchus':'\u26ce',
  'orange_book':'\ud83d\udcd9',
  'orthodox_cross':'\u2626\ufe0f',
  'outbox_tray':'\ud83d\udce4',
  'owl':'\ud83e\udd89',
  'ox':'\ud83d\udc02',
  'package':'\ud83d\udce6',
  'page_facing_up':'\ud83d\udcc4',
  'page_with_curl':'\ud83d\udcc3',
  'pager':'\ud83d\udcdf',
  'paintbrush':'\ud83d\udd8c',
  'palm_tree':'\ud83c\udf34',
  'pancakes':'\ud83e\udd5e',
  'panda_face':'\ud83d\udc3c',
  'paperclip':'\ud83d\udcce',
  'paperclips':'\ud83d\udd87',
  'parasol_on_ground':'\u26f1',
  'parking':'\ud83c\udd7f\ufe0f',
  'part_alternation_mark':'\u303d\ufe0f',
  'partly_sunny':'\u26c5\ufe0f',
  'passenger_ship':'\ud83d\udef3',
  'passport_control':'\ud83d\udec2',
  'pause_button':'\u23f8',
  'peace_symbol':'\u262e\ufe0f',
  'peach':'\ud83c\udf51',
  'peanuts':'\ud83e\udd5c',
  'pear':'\ud83c\udf50',
  'pen':'\ud83d\udd8a',
  'pencil2':'\u270f\ufe0f',
  'penguin':'\ud83d\udc27',
  'pensive':'\ud83d\ude14',
  'performing_arts':'\ud83c\udfad',
  'persevere':'\ud83d\ude23',
  'person_fencing':'\ud83e\udd3a',
  'pouting_woman':'\ud83d\ude4e',
  'phone':'\u260e\ufe0f',
  'pick':'\u26cf',
  'pig':'\ud83d\udc37',
  'pig2':'\ud83d\udc16',
  'pig_nose':'\ud83d\udc3d',
  'pill':'\ud83d\udc8a',
  'pineapple':'\ud83c\udf4d',
  'ping_pong':'\ud83c\udfd3',
  'pisces':'\u2653\ufe0f',
  'pizza':'\ud83c\udf55',
  'place_of_worship':'\ud83d\uded0',
  'plate_with_cutlery':'\ud83c\udf7d',
  'play_or_pause_button':'\u23ef',
  'point_down':'\ud83d\udc47',
  'point_left':'\ud83d\udc48',
  'point_right':'\ud83d\udc49',
  'point_up':'\u261d\ufe0f',
  'point_up_2':'\ud83d\udc46',
  'police_car':'\ud83d\ude93',
  'policewoman':'\ud83d\udc6e‍\u2640\ufe0f',
  'poodle':'\ud83d\udc29',
  'popcorn':'\ud83c\udf7f',
  'post_office':'\ud83c\udfe3',
  'postal_horn':'\ud83d\udcef',
  'postbox':'\ud83d\udcee',
  'potable_water':'\ud83d\udeb0',
  'potato':'\ud83e\udd54',
  'pouch':'\ud83d\udc5d',
  'poultry_leg':'\ud83c\udf57',
  'pound':'\ud83d\udcb7',
  'rage':'\ud83d\ude21',
  'pouting_cat':'\ud83d\ude3e',
  'pouting_man':'\ud83d\ude4e‍\u2642\ufe0f',
  'pray':'\ud83d\ude4f',
  'prayer_beads':'\ud83d\udcff',
  'pregnant_woman':'\ud83e\udd30',
  'previous_track_button':'\u23ee',
  'prince':'\ud83e\udd34',
  'princess':'\ud83d\udc78',
  'printer':'\ud83d\udda8',
  'purple_heart':'\ud83d\udc9c',
  'purse':'\ud83d\udc5b',
  'pushpin':'\ud83d\udccc',
  'put_litter_in_its_place':'\ud83d\udeae',
  'question':'\u2753',
  'rabbit':'\ud83d\udc30',
  'rabbit2':'\ud83d\udc07',
  'racehorse':'\ud83d\udc0e',
  'racing_car':'\ud83c\udfce',
  'radio':'\ud83d\udcfb',
  'radio_button':'\ud83d\udd18',
  'radioactive':'\u2622\ufe0f',
  'railway_car':'\ud83d\ude83',
  'railway_track':'\ud83d\udee4',
  'rainbow':'\ud83c\udf08',
  'rainbow_flag':'\ud83c\udff3\ufe0f‍\ud83c\udf08',
  'raised_back_of_hand':'\ud83e\udd1a',
  'raised_hand_with_fingers_splayed':'\ud83d\udd90',
  'raised_hands':'\ud83d\ude4c',
  'raising_hand_woman':'\ud83d\ude4b',
  'raising_hand_man':'\ud83d\ude4b‍\u2642\ufe0f',
  'ram':'\ud83d\udc0f',
  'ramen':'\ud83c\udf5c',
  'rat':'\ud83d\udc00',
  'record_button':'\u23fa',
  'recycle':'\u267b\ufe0f',
  'red_circle':'\ud83d\udd34',
  'registered':'\u00ae\ufe0f',
  'relaxed':'\u263a\ufe0f',
  'relieved':'\ud83d\ude0c',
  'reminder_ribbon':'\ud83c\udf97',
  'repeat':'\ud83d\udd01',
  'repeat_one':'\ud83d\udd02',
  'rescue_worker_helmet':'\u26d1',
  'restroom':'\ud83d\udebb',
  'revolving_hearts':'\ud83d\udc9e',
  'rewind':'\u23ea',
  'rhinoceros':'\ud83e\udd8f',
  'ribbon':'\ud83c\udf80',
  'rice':'\ud83c\udf5a',
  'rice_ball':'\ud83c\udf59',
  'rice_cracker':'\ud83c\udf58',
  'rice_scene':'\ud83c\udf91',
  'right_anger_bubble':'\ud83d\uddef',
  'ring':'\ud83d\udc8d',
  'robot':'\ud83e\udd16',
  'rocket':'\ud83d\ude80',
  'rofl':'\ud83e\udd23',
  'roll_eyes':'\ud83d\ude44',
  'roller_coaster':'\ud83c\udfa2',
  'rooster':'\ud83d\udc13',
  'rose':'\ud83c\udf39',
  'rosette':'\ud83c\udff5',
  'rotating_light':'\ud83d\udea8',
  'round_pushpin':'\ud83d\udccd',
  'rowing_man':'\ud83d\udea3',
  'rowing_woman':'\ud83d\udea3‍\u2640\ufe0f',
  'rugby_football':'\ud83c\udfc9',
  'running_man':'\ud83c\udfc3',
  'running_shirt_with_sash':'\ud83c\udfbd',
  'running_woman':'\ud83c\udfc3‍\u2640\ufe0f',
  'sa':'\ud83c\ude02\ufe0f',
  'sagittarius':'\u2650\ufe0f',
  'sake':'\ud83c\udf76',
  'sandal':'\ud83d\udc61',
  'santa':'\ud83c\udf85',
  'satellite':'\ud83d\udce1',
  'saxophone':'\ud83c\udfb7',
  'school':'\ud83c\udfeb',
  'school_satchel':'\ud83c\udf92',
  'scissors':'\u2702\ufe0f',
  'scorpion':'\ud83e\udd82',
  'scorpius':'\u264f\ufe0f',
  'scream':'\ud83d\ude31',
  'scream_cat':'\ud83d\ude40',
  'scroll':'\ud83d\udcdc',
  'seat':'\ud83d\udcba',
  'secret':'\u3299\ufe0f',
  'see_no_evil':'\ud83d\ude48',
  'seedling':'\ud83c\udf31',
  'selfie':'\ud83e\udd33',
  'shallow_pan_of_food':'\ud83e\udd58',
  'shamrock':'\u2618\ufe0f',
  'shark':'\ud83e\udd88',
  'shaved_ice':'\ud83c\udf67',
  'sheep':'\ud83d\udc11',
  'shell':'\ud83d\udc1a',
  'shield':'\ud83d\udee1',
  'shinto_shrine':'\u26e9',
  'ship':'\ud83d\udea2',
  'shirt':'\ud83d\udc55',
  'shopping':'\ud83d\udecd',
  'shopping_cart':'\ud83d\uded2',
  'shower':'\ud83d\udebf',
  'shrimp':'\ud83e\udd90',
  'signal_strength':'\ud83d\udcf6',
  'six_pointed_star':'\ud83d\udd2f',
  'ski':'\ud83c\udfbf',
  'skier':'\u26f7',
  'skull':'\ud83d\udc80',
  'skull_and_crossbones':'\u2620\ufe0f',
  'sleeping':'\ud83d\ude34',
  'sleeping_bed':'\ud83d\udecc',
  'sleepy':'\ud83d\ude2a',
  'slightly_frowning_face':'\ud83d\ude41',
  'slightly_smiling_face':'\ud83d\ude42',
  'slot_machine':'\ud83c\udfb0',
  'small_airplane':'\ud83d\udee9',
  'small_blue_diamond':'\ud83d\udd39',
  'small_orange_diamond':'\ud83d\udd38',
  'small_red_triangle':'\ud83d\udd3a',
  'small_red_triangle_down':'\ud83d\udd3b',
  'smile':'\ud83d\ude04',
  'smile_cat':'\ud83d\ude38',
  'smiley':'\ud83d\ude03',
  'smiley_cat':'\ud83d\ude3a',
  'smiling_imp':'\ud83d\ude08',
  'smirk':'\ud83d\ude0f',
  'smirk_cat':'\ud83d\ude3c',
  'smoking':'\ud83d\udeac',
  'snail':'\ud83d\udc0c',
  'snake':'\ud83d\udc0d',
  'sneezing_face':'\ud83e\udd27',
  'snowboarder':'\ud83c\udfc2',
  'snowflake':'\u2744\ufe0f',
  'snowman':'\u26c4\ufe0f',
  'snowman_with_snow':'\u2603\ufe0f',
  'sob':'\ud83d\ude2d',
  'soccer':'\u26bd\ufe0f',
  'soon':'\ud83d\udd1c',
  'sos':'\ud83c\udd98',
  'sound':'\ud83d\udd09',
  'space_invader':'\ud83d\udc7e',
  'spades':'\u2660\ufe0f',
  'spaghetti':'\ud83c\udf5d',
  'sparkle':'\u2747\ufe0f',
  'sparkler':'\ud83c\udf87',
  'sparkles':'\u2728',
  'sparkling_heart':'\ud83d\udc96',
  'speak_no_evil':'\ud83d\ude4a',
  'speaker':'\ud83d\udd08',
  'speaking_head':'\ud83d\udde3',
  'speech_balloon':'\ud83d\udcac',
  'speedboat':'\ud83d\udea4',
  'spider':'\ud83d\udd77',
  'spider_web':'\ud83d\udd78',
  'spiral_calendar':'\ud83d\uddd3',
  'spiral_notepad':'\ud83d\uddd2',
  'spoon':'\ud83e\udd44',
  'squid':'\ud83e\udd91',
  'stadium':'\ud83c\udfdf',
  'star':'\u2b50\ufe0f',
  'star2':'\ud83c\udf1f',
  'star_and_crescent':'\u262a\ufe0f',
  'star_of_david':'\u2721\ufe0f',
  'stars':'\ud83c\udf20',
  'station':'\ud83d\ude89',
  'statue_of_liberty':'\ud83d\uddfd',
  'steam_locomotive':'\ud83d\ude82',
  'stew':'\ud83c\udf72',
  'stop_button':'\u23f9',
  'stop_sign':'\ud83d\uded1',
  'stopwatch':'\u23f1',
  'straight_ruler':'\ud83d\udccf',
  'strawberry':'\ud83c\udf53',
  'stuck_out_tongue':'\ud83d\ude1b',
  'stuck_out_tongue_closed_eyes':'\ud83d\ude1d',
  'stuck_out_tongue_winking_eye':'\ud83d\ude1c',
  'studio_microphone':'\ud83c\udf99',
  'stuffed_flatbread':'\ud83e\udd59',
  'sun_behind_large_cloud':'\ud83c\udf25',
  'sun_behind_rain_cloud':'\ud83c\udf26',
  'sun_behind_small_cloud':'\ud83c\udf24',
  'sun_with_face':'\ud83c\udf1e',
  'sunflower':'\ud83c\udf3b',
  'sunglasses':'\ud83d\ude0e',
  'sunny':'\u2600\ufe0f',
  'sunrise':'\ud83c\udf05',
  'sunrise_over_mountains':'\ud83c\udf04',
  'surfing_man':'\ud83c\udfc4',
  'surfing_woman':'\ud83c\udfc4‍\u2640\ufe0f',
  'sushi':'\ud83c\udf63',
  'suspension_railway':'\ud83d\ude9f',
  'sweat':'\ud83d\ude13',
  'sweat_drops':'\ud83d\udca6',
  'sweat_smile':'\ud83d\ude05',
  'sweet_potato':'\ud83c\udf60',
  'swimming_man':'\ud83c\udfca',
  'swimming_woman':'\ud83c\udfca‍\u2640\ufe0f',
  'symbols':'\ud83d\udd23',
  'synagogue':'\ud83d\udd4d',
  'syringe':'\ud83d\udc89',
  'taco':'\ud83c\udf2e',
  'tada':'\ud83c\udf89',
  'tanabata_tree':'\ud83c\udf8b',
  'taurus':'\u2649\ufe0f',
  'taxi':'\ud83d\ude95',
  'tea':'\ud83c\udf75',
  'telephone_receiver':'\ud83d\udcde',
  'telescope':'\ud83d\udd2d',
  'tennis':'\ud83c\udfbe',
  'tent':'\u26fa\ufe0f',
  'thermometer':'\ud83c\udf21',
  'thinking':'\ud83e\udd14',
  'thought_balloon':'\ud83d\udcad',
  'ticket':'\ud83c\udfab',
  'tickets':'\ud83c\udf9f',
  'tiger':'\ud83d\udc2f',
  'tiger2':'\ud83d\udc05',
  'timer_clock':'\u23f2',
  'tipping_hand_man':'\ud83d\udc81‍\u2642\ufe0f',
  'tired_face':'\ud83d\ude2b',
  'tm':'\u2122\ufe0f',
  'toilet':'\ud83d\udebd',
  'tokyo_tower':'\ud83d\uddfc',
  'tomato':'\ud83c\udf45',
  'tongue':'\ud83d\udc45',
  'top':'\ud83d\udd1d',
  'tophat':'\ud83c\udfa9',
  'tornado':'\ud83c\udf2a',
  'trackball':'\ud83d\uddb2',
  'tractor':'\ud83d\ude9c',
  'traffic_light':'\ud83d\udea5',
  'train':'\ud83d\ude8b',
  'train2':'\ud83d\ude86',
  'tram':'\ud83d\ude8a',
  'triangular_flag_on_post':'\ud83d\udea9',
  'triangular_ruler':'\ud83d\udcd0',
  'trident':'\ud83d\udd31',
  'triumph':'\ud83d\ude24',
  'trolleybus':'\ud83d\ude8e',
  'trophy':'\ud83c\udfc6',
  'tropical_drink':'\ud83c\udf79',
  'tropical_fish':'\ud83d\udc20',
  'truck':'\ud83d\ude9a',
  'trumpet':'\ud83c\udfba',
  'tulip':'\ud83c\udf37',
  'tumbler_glass':'\ud83e\udd43',
  'turkey':'\ud83e\udd83',
  'turtle':'\ud83d\udc22',
  'tv':'\ud83d\udcfa',
  'twisted_rightwards_arrows':'\ud83d\udd00',
  'two_hearts':'\ud83d\udc95',
  'two_men_holding_hands':'\ud83d\udc6c',
  'two_women_holding_hands':'\ud83d\udc6d',
  'u5272':'\ud83c\ude39',
  'u5408':'\ud83c\ude34',
  'u55b6':'\ud83c\ude3a',
  'u6307':'\ud83c\ude2f\ufe0f',
  'u6708':'\ud83c\ude37\ufe0f',
  'u6709':'\ud83c\ude36',
  'u6e80':'\ud83c\ude35',
  'u7121':'\ud83c\ude1a\ufe0f',
  'u7533':'\ud83c\ude38',
  'u7981':'\ud83c\ude32',
  'u7a7a':'\ud83c\ude33',
  'umbrella':'\u2614\ufe0f',
  'unamused':'\ud83d\ude12',
  'underage':'\ud83d\udd1e',
  'unicorn':'\ud83e\udd84',
  'unlock':'\ud83d\udd13',
  'up':'\ud83c\udd99',
  'upside_down_face':'\ud83d\ude43',
  'v':'\u270c\ufe0f',
  'vertical_traffic_light':'\ud83d\udea6',
  'vhs':'\ud83d\udcfc',
  'vibration_mode':'\ud83d\udcf3',
  'video_camera':'\ud83d\udcf9',
  'video_game':'\ud83c\udfae',
  'violin':'\ud83c\udfbb',
  'virgo':'\u264d\ufe0f',
  'volcano':'\ud83c\udf0b',
  'volleyball':'\ud83c\udfd0',
  'vs':'\ud83c\udd9a',
  'vulcan_salute':'\ud83d\udd96',
  'walking_man':'\ud83d\udeb6',
  'walking_woman':'\ud83d\udeb6‍\u2640\ufe0f',
  'waning_crescent_moon':'\ud83c\udf18',
  'waning_gibbous_moon':'\ud83c\udf16',
  'warning':'\u26a0\ufe0f',
  'wastebasket':'\ud83d\uddd1',
  'watch':'\u231a\ufe0f',
  'water_buffalo':'\ud83d\udc03',
  'watermelon':'\ud83c\udf49',
  'wave':'\ud83d\udc4b',
  'wavy_dash':'\u3030\ufe0f',
  'waxing_crescent_moon':'\ud83c\udf12',
  'wc':'\ud83d\udebe',
  'weary':'\ud83d\ude29',
  'wedding':'\ud83d\udc92',
  'weight_lifting_man':'\ud83c\udfcb\ufe0f',
  'weight_lifting_woman':'\ud83c\udfcb\ufe0f‍\u2640\ufe0f',
  'whale':'\ud83d\udc33',
  'whale2':'\ud83d\udc0b',
  'wheel_of_dharma':'\u2638\ufe0f',
  'wheelchair':'\u267f\ufe0f',
  'white_check_mark':'\u2705',
  'white_circle':'\u26aa\ufe0f',
  'white_flag':'\ud83c\udff3\ufe0f',
  'white_flower':'\ud83d\udcae',
  'white_large_square':'\u2b1c\ufe0f',
  'white_medium_small_square':'\u25fd\ufe0f',
  'white_medium_square':'\u25fb\ufe0f',
  'white_small_square':'\u25ab\ufe0f',
  'white_square_button':'\ud83d\udd33',
  'wilted_flower':'\ud83e\udd40',
  'wind_chime':'\ud83c\udf90',
  'wind_face':'\ud83c\udf2c',
  'wine_glass':'\ud83c\udf77',
  'wink':'\ud83d\ude09',
  'wolf':'\ud83d\udc3a',
  'woman':'\ud83d\udc69',
  'woman_artist':'\ud83d\udc69‍\ud83c\udfa8',
  'woman_astronaut':'\ud83d\udc69‍\ud83d\ude80',
  'woman_cartwheeling':'\ud83e\udd38‍\u2640\ufe0f',
  'woman_cook':'\ud83d\udc69‍\ud83c\udf73',
  'woman_facepalming':'\ud83e\udd26‍\u2640\ufe0f',
  'woman_factory_worker':'\ud83d\udc69‍\ud83c\udfed',
  'woman_farmer':'\ud83d\udc69‍\ud83c\udf3e',
  'woman_firefighter':'\ud83d\udc69‍\ud83d\ude92',
  'woman_health_worker':'\ud83d\udc69‍\u2695\ufe0f',
  'woman_judge':'\ud83d\udc69‍\u2696\ufe0f',
  'woman_juggling':'\ud83e\udd39‍\u2640\ufe0f',
  'woman_mechanic':'\ud83d\udc69‍\ud83d\udd27',
  'woman_office_worker':'\ud83d\udc69‍\ud83d\udcbc',
  'woman_pilot':'\ud83d\udc69‍\u2708\ufe0f',
  'woman_playing_handball':'\ud83e\udd3e‍\u2640\ufe0f',
  'woman_playing_water_polo':'\ud83e\udd3d‍\u2640\ufe0f',
  'woman_scientist':'\ud83d\udc69‍\ud83d\udd2c',
  'woman_shrugging':'\ud83e\udd37‍\u2640\ufe0f',
  'woman_singer':'\ud83d\udc69‍\ud83c\udfa4',
  'woman_student':'\ud83d\udc69‍\ud83c\udf93',
  'woman_teacher':'\ud83d\udc69‍\ud83c\udfeb',
  'woman_technologist':'\ud83d\udc69‍\ud83d\udcbb',
  'woman_with_turban':'\ud83d\udc73‍\u2640\ufe0f',
  'womans_clothes':'\ud83d\udc5a',
  'womans_hat':'\ud83d\udc52',
  'women_wrestling':'\ud83e\udd3c‍\u2640\ufe0f',
  'womens':'\ud83d\udeba',
  'world_map':'\ud83d\uddfa',
  'worried':'\ud83d\ude1f',
  'wrench':'\ud83d\udd27',
  'writing_hand':'\u270d\ufe0f',
  'x':'\u274c',
  'yellow_heart':'\ud83d\udc9b',
  'yen':'\ud83d\udcb4',
  'yin_yang':'\u262f\ufe0f',
  'yum':'\ud83d\ude0b',
  'zap':'\u26a1\ufe0f',
  'zipper_mouth_face':'\ud83e\udd10',
  'zzz':'\ud83d\udca4',

  /* special emojis :P */
  'octocat':  '<img alt=":octocat:" height="20" width="20" align="absmiddle" src="https://assets-cdn.github.com/images/icons/emoji/octocat.png">',
  'showdown': '<span style="font-family: \'Anonymous Pro\', monospace; text-decoration: underline; text-decoration-style: dashed; text-decoration-color: #3e8b8a;text-underline-position: under;">S</span>'
};

/**
 * Created by Estevao on 31-05-2015.
 */

/**
 * Showdown Converter class
 * @class
 * @param {object} [converterOptions]
 * @returns {Converter}
 */
showdown.Converter = function (converterOptions) {
  'use strict';

  var
      /**
       * Options used by this converter
       * @private
       * @type {{}}
       */
      options = {},

      /**
       * Language extensions used by this converter
       * @private
       * @type {Array}
       */
      langExtensions = [],

      /**
       * Output modifiers extensions used by this converter
       * @private
       * @type {Array}
       */
      outputModifiers = [],

      /**
       * Event listeners
       * @private
       * @type {{}}
       */
      listeners = {},

      /**
       * The flavor set in this converter
       */
      setConvFlavor = setFlavor,

      /**
       * Metadata of the document
       * @type {{parsed: {}, raw: string, format: string}}
       */
      metadata = {
        parsed: {},
        raw: '',
        format: ''
      };

  _constructor();

  /**
   * Converter constructor
   * @private
   */
  function _constructor () {
    converterOptions = converterOptions || {};

    for (var gOpt in globalOptions) {
      if (globalOptions.hasOwnProperty(gOpt)) {
        options[gOpt] = globalOptions[gOpt];
      }
    }

    // Merge options
    if (typeof converterOptions === 'object') {
      for (var opt in converterOptions) {
        if (converterOptions.hasOwnProperty(opt)) {
          options[opt] = converterOptions[opt];
        }
      }
    } else {
      throw Error('Converter expects the passed parameter to be an object, but ' + typeof converterOptions +
      ' was passed instead.');
    }

    if (options.extensions) {
      showdown.helper.forEach(options.extensions, _parseExtension);
    }
  }

  /**
   * Parse extension
   * @param {*} ext
   * @param {string} [name='']
   * @private
   */
  function _parseExtension (ext, name) {

    name = name || null;
    // If it's a string, the extension was previously loaded
    if (showdown.helper.isString(ext)) {
      ext = showdown.helper.stdExtName(ext);
      name = ext;

      // LEGACY_SUPPORT CODE
      if (showdown.extensions[ext]) {
        console.warn('DEPRECATION WARNING: ' + ext + ' is an old extension that uses a deprecated loading method.' +
          'Please inform the developer that the extension should be updated!');
        legacyExtensionLoading(showdown.extensions[ext], ext);
        return;
        // END LEGACY SUPPORT CODE

      } else if (!showdown.helper.isUndefined(extensions[ext])) {
        ext = extensions[ext];

      } else {
        throw Error('Extension "' + ext + '" could not be loaded. It was either not found or is not a valid extension.');
      }
    }

    if (typeof ext === 'function') {
      ext = ext();
    }

    if (!showdown.helper.isArray(ext)) {
      ext = [ext];
    }

    var validExt = validate(ext, name);
    if (!validExt.valid) {
      throw Error(validExt.error);
    }

    for (var i = 0; i < ext.length; ++i) {
      switch (ext[i].type) {

        case 'lang':
          langExtensions.push(ext[i]);
          break;

        case 'output':
          outputModifiers.push(ext[i]);
          break;
      }
      if (ext[i].hasOwnProperty('listeners')) {
        for (var ln in ext[i].listeners) {
          if (ext[i].listeners.hasOwnProperty(ln)) {
            listen(ln, ext[i].listeners[ln]);
          }
        }
      }
    }

  }

  /**
   * LEGACY_SUPPORT
   * @param {*} ext
   * @param {string} name
   */
  function legacyExtensionLoading (ext, name) {
    if (typeof ext === 'function') {
      ext = ext(new showdown.Converter());
    }
    if (!showdown.helper.isArray(ext)) {
      ext = [ext];
    }
    var valid = validate(ext, name);

    if (!valid.valid) {
      throw Error(valid.error);
    }

    for (var i = 0; i < ext.length; ++i) {
      switch (ext[i].type) {
        case 'lang':
          langExtensions.push(ext[i]);
          break;
        case 'output':
          outputModifiers.push(ext[i]);
          break;
        default:// should never reach here
          throw Error('Extension loader error: Type unrecognized!!!');
      }
    }
  }

  /**
   * Listen to an event
   * @param {string} name
   * @param {function} callback
   */
  function listen (name, callback) {
    if (!showdown.helper.isString(name)) {
      throw Error('Invalid argument in converter.listen() method: name must be a string, but ' + typeof name + ' given');
    }

    if (typeof callback !== 'function') {
      throw Error('Invalid argument in converter.listen() method: callback must be a function, but ' + typeof callback + ' given');
    }

    if (!listeners.hasOwnProperty(name)) {
      listeners[name] = [];
    }
    listeners[name].push(callback);
  }

  function rTrimInputText (text) {
    var rsp = text.match(/^\s*/)[0].length,
        rgx = new RegExp('^\\s{0,' + rsp + '}', 'gm');
    return text.replace(rgx, '');
  }

  /**
   * Dispatch an event
   * @private
   * @param {string} evtName Event name
   * @param {string} text Text
   * @param {{}} options Converter Options
   * @param {{}} globals
   * @returns {string}
   */
  this._dispatch = function dispatch (evtName, text, options, globals) {
    if (listeners.hasOwnProperty(evtName)) {
      for (var ei = 0; ei < listeners[evtName].length; ++ei) {
        var nText = listeners[evtName][ei](evtName, text, this, options, globals);
        if (nText && typeof nText !== 'undefined') {
          text = nText;
        }
      }
    }
    return text;
  };

  /**
   * Listen to an event
   * @param {string} name
   * @param {function} callback
   * @returns {showdown.Converter}
   */
  this.listen = function (name, callback) {
    listen(name, callback);
    return this;
  };

  /**
   * Converts a markdown string into HTML
   * @param {string} text
   * @returns {*}
   */
  this.makeHtml = function (text) {
    //check if text is not falsy
    if (!text) {
      return text;
    }

    var globals = {
      gHtmlBlocks:     [],
      gHtmlMdBlocks:   [],
      gHtmlSpans:      [],
      gUrls:           {},
      gTitles:         {},
      gDimensions:     {},
      gListLevel:      0,
      hashLinkCounts:  {},
      langExtensions:  langExtensions,
      outputModifiers: outputModifiers,
      converter:       this,
      ghCodeBlocks:    [],
      metadata: {
        parsed: {},
        raw: '',
        format: ''
      }
    };

    // This lets us use ¨ trema as an escape char to avoid md5 hashes
    // The choice of character is arbitrary; anything that isn't
    // magic in Markdown will work.
    text = text.replace(/¨/g, '¨T');

    // Replace $ with ¨D
    // RegExp interprets $ as a special character
    // when it's in a replacement string
    text = text.replace(/\$/g, '¨D');

    // Standardize line endings
    text = text.replace(/\r\n/g, '\n'); // DOS to Unix
    text = text.replace(/\r/g, '\n'); // Mac to Unix

    // Stardardize line spaces
    text = text.replace(/\u00A0/g, '&nbsp;');

    if (options.smartIndentationFix) {
      text = rTrimInputText(text);
    }

    // Make sure text begins and ends with a couple of newlines:
    text = '\n\n' + text + '\n\n';

    // detab
    text = showdown.subParser('detab')(text, options, globals);

    /**
     * Strip any lines consisting only of spaces and tabs.
     * This makes subsequent regexs easier to write, because we can
     * match consecutive blank lines with /\n+/ instead of something
     * contorted like /[ \t]*\n+/
     */
    text = text.replace(/^[ \t]+$/mg, '');

    //run languageExtensions
    showdown.helper.forEach(langExtensions, function (ext) {
      text = showdown.subParser('runExtension')(ext, text, options, globals);
    });

    // run the sub parsers
    text = showdown.subParser('metadata')(text, options, globals);
    text = showdown.subParser('hashPreCodeTags')(text, options, globals);
    text = showdown.subParser('githubCodeBlocks')(text, options, globals);
    text = showdown.subParser('hashHTMLBlocks')(text, options, globals);
    text = showdown.subParser('hashCodeTags')(text, options, globals);
    text = showdown.subParser('stripLinkDefinitions')(text, options, globals);
    text = showdown.subParser('blockGamut')(text, options, globals);
    text = showdown.subParser('unhashHTMLSpans')(text, options, globals);
    text = showdown.subParser('unescapeSpecialChars')(text, options, globals);

    // attacklab: Restore dollar signs
    text = text.replace(/¨D/g, '$$');

    // attacklab: Restore tremas
    text = text.replace(/¨T/g, '¨');

    // render a complete html document instead of a partial if the option is enabled
    text = showdown.subParser('completeHTMLDocument')(text, options, globals);

    // Run output modifiers
    showdown.helper.forEach(outputModifiers, function (ext) {
      text = showdown.subParser('runExtension')(ext, text, options, globals);
    });

    // update metadata
    metadata = globals.metadata;
    return text;
  };

  /**
   * Converts an HTML string into a markdown string
   * @param src
   * @param [HTMLParser] A WHATWG DOM and HTML parser, such as JSDOM. If none is supplied, window.document will be used.
   * @returns {string}
   */
  this.makeMarkdown = this.makeMd = function (src, HTMLParser) {

    // replace \r\n with \n
    src = src.replace(/\r\n/g, '\n');
    src = src.replace(/\r/g, '\n'); // old macs

    // due to an edge case, we need to find this: > <
    // to prevent removing of non silent white spaces
    // ex: <em>this is</em> <strong>sparta</strong>
    src = src.replace(/>[ \t]+</, '>¨NBSP;<');

    if (!HTMLParser) {
      if (window && window.document) {
        HTMLParser = window.document;
      } else {
        throw new Error('HTMLParser is undefined. If in a webworker or nodejs environment, you need to provide a WHATWG DOM and HTML such as JSDOM');
      }
    }

    var doc = HTMLParser.createElement('div');
    doc.innerHTML = src;

    var globals = {
      preList: substitutePreCodeTags(doc)
    };

    // remove all newlines and collapse spaces
    clean(doc);

    // some stuff, like accidental reference links must now be escaped
    // TODO
    // doc.innerHTML = doc.innerHTML.replace(/\[[\S\t ]]/);

    var nodes = doc.childNodes,
        mdDoc = '';

    for (var i = 0; i < nodes.length; i++) {
      mdDoc += showdown.subParser('makeMarkdown.node')(nodes[i], globals);
    }

    function clean (node) {
      for (var n = 0; n < node.childNodes.length; ++n) {
        var child = node.childNodes[n];
        if (child.nodeType === 3) {
          if (!/\S/.test(child.nodeValue)) {
            node.removeChild(child);
            --n;

You seem to be assigning a new value to the loop variable n here. Please check if this was indeed your intention. Even if it was, consider using another kind of loop instead.

          } else {
            child.nodeValue = child.nodeValue.split('\n').join(' ');
            child.nodeValue = child.nodeValue.replace(/(\s)+/g, '$1');
          }
        } else if (child.nodeType === 1) {
          clean(child);
        }
      }
    }

    // find all pre tags and replace contents with placeholder
    // we need this so that we can remove all indentation from html
    // to ease up parsing
    function substitutePreCodeTags (doc) {

      var pres = doc.querySelectorAll('pre'),
          presPH = [];

      for (var i = 0; i < pres.length; ++i) {

        if (pres[i].childElementCount === 1 && pres[i].firstChild.tagName.toLowerCase() === 'code') {
          var content = pres[i].firstChild.innerHTML.trim(),
              language = pres[i].firstChild.getAttribute('data-language') || '';

          // if data-language attribute is not defined, then we look for class language-*
          if (language === '') {
            var classes = pres[i].firstChild.className.split(' ');
            for (var c = 0; c < classes.length; ++c) {
              var matches = classes[c].match(/^language-(.+)$/);
              if (matches !== null) {
                language = matches[1];
                break;
              }
            }
          }

          // unescape html entities in content
          content = showdown.helper.unescapeHTMLEntities(content);

          presPH.push(content);
          pres[i].outerHTML = '<precode language="' + language + '" precodenum="' + i.toString() + '"></precode>';
        } else {
          presPH.push(pres[i].innerHTML);
          pres[i].innerHTML = '';
          pres[i].setAttribute('prenum', i.toString());
        }
      }
      return presPH;
    }

    return mdDoc;
  };

  /**
   * Set an option of this Converter instance
   * @param {string} key
   * @param {*} value
   */
  this.setOption = function (key, value) {
    options[key] = value;
  };

  /**
   * Get the option of this Converter instance
   * @param {string} key
   * @returns {*}
   */
  this.getOption = function (key) {
    return options[key];
  };

  /**
   * Get the options of this Converter instance
   * @returns {{}}
   */
  this.getOptions = function () {
    return options;
  };

  /**
   * Add extension to THIS converter
   * @param {{}} extension
   * @param {string} [name=null]
   */
  this.addExtension = function (extension, name) {
    name = name || null;
    _parseExtension(extension, name);
  };

  /**
   * Use a global registered extension with THIS converter
   * @param {string} extensionName Name of the previously registered extension
   */
  this.useExtension = function (extensionName) {
    _parseExtension(extensionName);
  };

  /**
   * Set the flavor THIS converter should use
   * @param {string} name
   */
  this.setFlavor = function (name) {
    if (!flavor.hasOwnProperty(name)) {
      throw Error(name + ' flavor was not found');
    }
    var preset = flavor[name];
    setConvFlavor = name;
    for (var option in preset) {
      if (preset.hasOwnProperty(option)) {
        options[option] = preset[option];
      }
    }
  };

  /**
   * Get the currently set flavor of this converter
   * @returns {string}
   */
  this.getFlavor = function () {
    return setConvFlavor;
  };

  /**
   * Remove an extension from THIS converter.
   * Note: This is a costly operation. It's better to initialize a new converter
   * and specify the extensions you wish to use
   * @param {Array} extension
   */
  this.removeExtension = function (extension) {
    if (!showdown.helper.isArray(extension)) {
      extension = [extension];
    }
    for (var a = 0; a < extension.length; ++a) {
      var ext = extension[a];
      for (var i = 0; i < langExtensions.length; ++i) {
        if (langExtensions[i] === ext) {
          langExtensions[i].splice(i, 1);
        }
      }
      for (var ii = 0; ii < outputModifiers.length; ++i) {
        if (outputModifiers[ii] === ext) {
          outputModifiers[ii].splice(i, 1);
        }
      }
    }
  };

  /**
   * Get all extension of THIS converter
   * @returns {{language: Array, output: Array}}
   */
  this.getAllExtensions = function () {
    return {
      language: langExtensions,
      output: outputModifiers
    };
  };

  /**
   * Get the metadata of the previously parsed document
   * @param raw
   * @returns {string|{}}
   */
  this.getMetadata = function (raw) {
    if (raw) {
      return metadata.raw;
    } else {

else is not necessary here since all if branches return, consider removing it to reduce nesting and make code more readable.

      return metadata.parsed;
    }
  };

  /**
   * Get the metadata format of the previously parsed document
   * @returns {string}
   */
  this.getMetadataFormat = function () {
    return metadata.format;
  };

  /**
   * Private: set a single key, value metadata pair
   * @param {string} key
   * @param {string} value
   */
  this._setMetadataPair = function (key, value) {
    metadata.parsed[key] = value;
  };

  /**
   * Private: set metadata format
   * @param {string} format
   */
  this._setMetadataFormat = function (format) {
    metadata.format = format;
  };

  /**
   * Private: set metadata raw text
   * @param {string} raw
   */
  this._setMetadataRaw = function (raw) {
    metadata.raw = raw;
  };
};

/**
 * Turn Markdown link shortcuts into XHTML <a> tags.
 */
showdown.subParser('anchors', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('anchors.before', text, options, globals);

  var writeAnchorTag = function (wholeMatch, linkText, linkId, url, m5, m6, title) {
    if (showdown.helper.isUndefined(title)) {
      title = '';
    }
    linkId = linkId.toLowerCase();

    // Special case for explicit empty url
    if (wholeMatch.search(/\(<?\s*>? ?(['"].*['"])?\)$/m) > -1) {
      url = '';
    } else if (!url) {
      if (!linkId) {
        // lower-case and turn embedded newlines into spaces
        linkId = linkText.toLowerCase().replace(/ ?\n/g, ' ');
      }
      url = '#' + linkId;

      if (!showdown.helper.isUndefined(globals.gUrls[linkId])) {
        url = globals.gUrls[linkId];
        if (!showdown.helper.isUndefined(globals.gTitles[linkId])) {
          title = globals.gTitles[linkId];
        }
      } else {
        return wholeMatch;
      }
    }

    //url = showdown.helper.escapeCharacters(url, '*_', false); // replaced line to improve performance
    url = url.replace(showdown.helper.regexes.asteriskDashAndColon, showdown.helper.escapeCharactersCallback);

    var result = '<a href="' + url + '"';

    if (title !== '' && title !== null) {
      title = title.replace(/"/g, '&quot;');
      //title = showdown.helper.escapeCharacters(title, '*_', false); // replaced line to improve performance
      title = title.replace(showdown.helper.regexes.asteriskDashAndColon, showdown.helper.escapeCharactersCallback);
      result += ' title="' + title + '"';
    }

    // optionLinksInNewWindow only applies
    // to external links. Hash links (#) open in same page
    if (options.openLinksInNewWindow && !/^#/.test(url)) {
      // escaped _
      result += ' rel="noopener noreferrer" target="¨E95Eblank"';
    }

    result += '>' + linkText + '</a>';

    return result;
  };

  // First, handle reference-style links: [link text] [id]
  text = text.replace(/\[((?:\[[^\]]*]|[^\[\]])*)] ?(?:\n *)?\[(.*?)]()()()()/g, writeAnchorTag);

  // Next, inline-style links: [link text](url "optional title")
  // cases with crazy urls like ./image/cat1).png
  text = text.replace(/\[((?:\[[^\]]*]|[^\[\]])*)]()[ \t]*\([ \t]?<([^>]*)>(?:[ \t]*((["'])([^"]*?)\5))?[ \t]?\)/g,
    writeAnchorTag);

  // normal cases
  text = text.replace(/\[((?:\[[^\]]*]|[^\[\]])*)]()[ \t]*\([ \t]?<?([\S]+?(?:\([\S]*?\)[\S]*?)?)>?(?:[ \t]*((["'])([^"]*?)\5))?[ \t]?\)/g,
    writeAnchorTag);

  // handle reference-style shortcuts: [link text]
  // These must come last in case you've also got [link test][1]
  // or [link test](/foo)
  text = text.replace(/\[([^\[\]]+)]()()()()()/g, writeAnchorTag);

  // Lastly handle GithubMentions if option is enabled
  if (options.ghMentions) {
    text = text.replace(/(^|\s)(\\)?(@([a-z\d]+(?:[a-z\d.-]+?[a-z\d]+)*))/gmi, function (wm, st, escape, mentions, username) {
      if (escape === '\\') {
        return st + mentions;
      }

      //check if options.ghMentionsLink is a string
      if (!showdown.helper.isString(options.ghMentionsLink)) {
        throw new Error('ghMentionsLink option must be a string');
      }
      var lnk = options.ghMentionsLink.replace(/\{u}/g, username),
          target = '';
      if (options.openLinksInNewWindow) {
        target = ' rel="noopener noreferrer" target="¨E95Eblank"';
      }
      return st + '<a href="' + lnk + '"' + target + '>' + mentions + '</a>';
    });
  }

  text = globals.converter._dispatch('anchors.after', text, options, globals);
  return text;
});

// url allowed chars [a-z\d_.~:/?#[]@!$&'()*+,;=-]

var simpleURLRegex  = /([*~_]+|\b)(((https?|ftp|dict):\/\/|www\.)[^'">\s]+?\.[^'">\s]+?)()(\1)?(?=\s|$)(?!["<>])/gi,
    simpleURLRegex2 = /([*~_]+|\b)(((https?|ftp|dict):\/\/|www\.)[^'">\s]+\.[^'">\s]+?)([.!?,()\[\]])?(\1)?(?=\s|$)(?!["<>])/gi,
    delimUrlRegex   = /()<(((https?|ftp|dict):\/\/|www\.)[^'">\s]+)()>()/gi,
    simpleMailRegex = /(^|\s)(?:mailto:)?([A-Za-z0-9!#$%&'*+-/=?^_`{|}~.]+@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)(?=$|\s)/gmi,
    delimMailRegex  = /<()(?:mailto:)?([-.\w]+@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,

    replaceLink = function (options) {
      'use strict';
      return function (wm, leadingMagicChars, link, m2, m3, trailingPunctuation, trailingMagicChars) {
        link = link.replace(showdown.helper.regexes.asteriskDashAndColon, showdown.helper.escapeCharactersCallback);
        var lnkTxt = link,
            append = '',
            target = '',
            lmc    = leadingMagicChars || '',
            tmc    = trailingMagicChars || '';
        if (/^www\./i.test(link)) {
          link = link.replace(/^www\./i, 'http://www.');
        }
        if (options.excludeTrailingPunctuationFromURLs && trailingPunctuation) {
          append = trailingPunctuation;
        }
        if (options.openLinksInNewWindow) {
          target = ' rel="noopener noreferrer" target="¨E95Eblank"';
        }
        return lmc + '<a href="' + link + '"' + target + '>' + lnkTxt + '</a>' + append + tmc;
      };
    },

    replaceMail = function (options, globals) {
      'use strict';
      return function (wholeMatch, b, mail) {
        var href = 'mailto:';
        b = b || '';
        mail = showdown.subParser('unescapeSpecialChars')(mail, options, globals);
        if (options.encodeEmails) {
          href = showdown.helper.encodeEmailAddress(href + mail);
          mail = showdown.helper.encodeEmailAddress(mail);
        } else {
          href = href + mail;
        }
        return b + '<a href="' + href + '">' + mail + '</a>';
      };
    };

showdown.subParser('autoLinks', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('autoLinks.before', text, options, globals);

  text = text.replace(delimUrlRegex, replaceLink(options));
  text = text.replace(delimMailRegex, replaceMail(options, globals));

  text = globals.converter._dispatch('autoLinks.after', text, options, globals);

  return text;
});

showdown.subParser('simplifiedAutoLinks', function (text, options, globals) {
  'use strict';

  if (!options.simplifiedAutoLink) {
    return text;
  }

  text = globals.converter._dispatch('simplifiedAutoLinks.before', text, options, globals);

  if (options.excludeTrailingPunctuationFromURLs) {
    text = text.replace(simpleURLRegex2, replaceLink(options));
  } else {
    text = text.replace(simpleURLRegex, replaceLink(options));
  }
  text = text.replace(simpleMailRegex, replaceMail(options, globals));

  text = globals.converter._dispatch('simplifiedAutoLinks.after', text, options, globals);

  return text;
});

/**
 * These are all the transformations that form block-level
 * tags like paragraphs, headers, and list items.
 */
showdown.subParser('blockGamut', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('blockGamut.before', text, options, globals);

  // we parse blockquotes first so that we can have headings and hrs
  // inside blockquotes
  text = showdown.subParser('blockQuotes')(text, options, globals);
  text = showdown.subParser('headers')(text, options, globals);

  // Do Horizontal Rules:
  text = showdown.subParser('horizontalRule')(text, options, globals);

  text = showdown.subParser('lists')(text, options, globals);
  text = showdown.subParser('codeBlocks')(text, options, globals);
  text = showdown.subParser('tables')(text, options, globals);

  // We already ran _HashHTMLBlocks() before, in Markdown(), but that
  // was to escape raw HTML in the original Markdown source. This time,
  // we're escaping the markup we've just created, so that we don't wrap
  // <p> tags around block-level tags.
  text = showdown.subParser('hashHTMLBlocks')(text, options, globals);
  text = showdown.subParser('paragraphs')(text, options, globals);

  text = globals.converter._dispatch('blockGamut.after', text, options, globals);

  return text;
});

showdown.subParser('blockQuotes', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('blockQuotes.before', text, options, globals);

  // add a couple extra lines after the text and endtext mark
  text = text + '\n\n';

  var rgx = /(^ {0,3}>[ \t]?.+\n(.+\n)*\n*)+/gm;

  if (options.splitAdjacentBlockquotes) {
    rgx = /^ {0,3}>[\s\S]*?(?:\n\n)/gm;
  }

  text = text.replace(rgx, function (bq) {
    // attacklab: hack around Konqueror 3.5.4 bug:
    // "----------bug".replace(/^-/g,"") == "bug"
    bq = bq.replace(/^[ \t]*>[ \t]?/gm, ''); // trim one level of quoting

    // attacklab: clean up hack
    bq = bq.replace(/¨0/g, '');

    bq = bq.replace(/^[ \t]+$/gm, ''); // trim whitespace-only lines
    bq = showdown.subParser('githubCodeBlocks')(bq, options, globals);
    bq = showdown.subParser('blockGamut')(bq, options, globals); // recurse

    bq = bq.replace(/(^|\n)/g, '$1  ');
    // These leading spaces screw with <pre> content, so we need to fix that:
    bq = bq.replace(/(\s*<pre>[^\r]+?<\/pre>)/gm, function (wholeMatch, m1) {
      var pre = m1;
      // attacklab: hack around Konqueror 3.5.4 bug:
      pre = pre.replace(/^  /mg, '¨0');
      pre = pre.replace(/¨0/g, '');
      return pre;
    });

    return showdown.subParser('hashBlock')('<blockquote>\n' + bq + '\n</blockquote>', options, globals);
  });

  text = globals.converter._dispatch('blockQuotes.after', text, options, globals);
  return text;
});

/**
 * Process Markdown `<pre><code>` blocks.
 */
showdown.subParser('codeBlocks', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('codeBlocks.before', text, options, globals);

  // sentinel workarounds for lack of \A and \Z, safari\khtml bug
  text += '¨0';

  var pattern = /(?:\n\n|^)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=¨0))/g;
  text = text.replace(pattern, function (wholeMatch, m1, m2) {
    var codeblock = m1,
        nextChar = m2,
        end = '\n';

    codeblock = showdown.subParser('outdent')(codeblock, options, globals);
    codeblock = showdown.subParser('encodeCode')(codeblock, options, globals);
    codeblock = showdown.subParser('detab')(codeblock, options, globals);
    codeblock = codeblock.replace(/^\n+/g, ''); // trim leading newlines
    codeblock = codeblock.replace(/\n+$/g, ''); // trim trailing newlines

    if (options.omitExtraWLInCodeBlocks) {
      end = '';
    }

    codeblock = '<pre><code>' + codeblock + end + '</code></pre>';

    return showdown.subParser('hashBlock')(codeblock, options, globals) + nextChar;
  });

  // strip sentinel
  text = text.replace(/¨0/, '');

  text = globals.converter._dispatch('codeBlocks.after', text, options, globals);
  return text;
});

/**
 *
 *   *  Backtick quotes are used for <code></code> spans.
 *
 *   *  You can use multiple backticks as the delimiters if you want to
 *     include literal backticks in the code span. So, this input:
 *
 *         Just type ``foo `bar` baz`` at the prompt.
 *
 *       Will translate to:
 *
 *         <p>Just type <code>foo `bar` baz</code> at the prompt.</p>
 *
 *    There's no arbitrary limit to the number of backticks you
 *    can use as delimters. If you need three consecutive backticks
 *    in your code, use four for delimiters, etc.
 *
 *  *  You can use spaces to get literal backticks at the edges:
 *
 *         ... type `` `bar` `` ...
 *
 *       Turns to:
 *
 *         ... type <code>`bar`</code> ...
 */
showdown.subParser('codeSpans', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('codeSpans.before', text, options, globals);

  if (typeof text === 'undefined') {
    text = '';
  }
  text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm,
    function (wholeMatch, m1, m2, m3) {
      var c = m3;
      c = c.replace(/^([ \t]*)/g, '');	// leading whitespace
      c = c.replace(/[ \t]*$/g, '');	// trailing whitespace
      c = showdown.subParser('encodeCode')(c, options, globals);
      c = m1 + '<code>' + c + '</code>';
      c = showdown.subParser('hashHTMLSpans')(c, options, globals);
      return c;
    }
  );

  text = globals.converter._dispatch('codeSpans.after', text, options, globals);
  return text;
});

/**
 * Create a full HTML document from the processed markdown
 */
showdown.subParser('completeHTMLDocument', function (text, options, globals) {
  'use strict';

  if (!options.completeHTMLDocument) {
    return text;
  }

  text = globals.converter._dispatch('completeHTMLDocument.before', text, options, globals);

  var doctype = 'html',
      doctypeParsed = '<!DOCTYPE HTML>\n',
      title = '',
      charset = '<meta charset="utf-8">\n',
      lang = '',
      metadata = '';

  if (typeof globals.metadata.parsed.doctype !== 'undefined') {
    doctypeParsed = '<!DOCTYPE ' +  globals.metadata.parsed.doctype + '>\n';
    doctype = globals.metadata.parsed.doctype.toString().toLowerCase();
    if (doctype === 'html' || doctype === 'html5') {
      charset = '<meta charset="utf-8">';
    }
  }

  for (var meta in globals.metadata.parsed) {
    if (globals.metadata.parsed.hasOwnProperty(meta)) {
      switch (meta.toLowerCase()) {
        case 'doctype':
          break;

        case 'title':
          title = '<title>' +  globals.metadata.parsed.title + '</title>\n';
          break;

        case 'charset':
          if (doctype === 'html' || doctype === 'html5') {
            charset = '<meta charset="' + globals.metadata.parsed.charset + '">\n';
          } else {
            charset = '<meta name="charset" content="' + globals.metadata.parsed.charset + '">\n';
          }
          break;

        case 'language':
        case 'lang':
          lang = ' lang="' + globals.metadata.parsed[meta] + '"';
          metadata += '<meta name="' + meta + '" content="' + globals.metadata.parsed[meta] + '">\n';
          break;

        default:
          metadata += '<meta name="' + meta + '" content="' + globals.metadata.parsed[meta] + '">\n';
      }
    }
  }

  text = doctypeParsed + '<html' + lang + '>\n<head>\n' + title + charset + metadata + '</head>\n<body>\n' + text.trim() + '\n</body>\n</html>';

  text = globals.converter._dispatch('completeHTMLDocument.after', text, options, globals);
  return text;
});

/**
 * Convert all tabs to spaces
 */
showdown.subParser('detab', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('detab.before', text, options, globals);

  // expand first n-1 tabs
  text = text.replace(/\t(?=\t)/g, '    '); // g_tab_width

  // replace the nth with two sentinels
  text = text.replace(/\t/g, '¨A¨B');

  // use the sentinel to anchor our regex so it doesn't explode
  text = text.replace(/¨B(.+?)¨A/g, function (wholeMatch, m1) {
    var leadingText = m1,
        numSpaces = 4 - leadingText.length % 4;  // g_tab_width

    // there *must* be a better way to do this:
    for (var i = 0; i < numSpaces; i++) {
      leadingText += ' ';
    }

    return leadingText;
  });

  // clean up sentinels
  text = text.replace(/¨A/g, '    ');  // g_tab_width
  text = text.replace(/¨B/g, '');

  text = globals.converter._dispatch('detab.after', text, options, globals);
  return text;
});

showdown.subParser('ellipsis', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('ellipsis.before', text, options, globals);

  text = text.replace(/\.\.\./g, '…');

  text = globals.converter._dispatch('ellipsis.after', text, options, globals);

  return text;
});

/**
 * Turn emoji codes into emojis
 *
 * List of supported emojis: https://github.com/showdownjs/showdown/wiki/Emojis
 */
showdown.subParser('emoji', function (text, options, globals) {
  'use strict';

  if (!options.emoji) {
    return text;
  }

  text = globals.converter._dispatch('emoji.before', text, options, globals);

  var emojiRgx = /:([\S]+?):/g;

  text = text.replace(emojiRgx, function (wm, emojiCode) {
    if (showdown.helper.emojis.hasOwnProperty(emojiCode)) {
      return showdown.helper.emojis[emojiCode];
    }
    return wm;
  });

  text = globals.converter._dispatch('emoji.after', text, options, globals);

  return text;
});

/**
 * Smart processing for ampersands and angle brackets that need to be encoded.
 */
showdown.subParser('encodeAmpsAndAngles', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('encodeAmpsAndAngles.before', text, options, globals);

  // Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
  // http://bumppo.net/projects/amputator/
  text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g, '&amp;');

  // Encode naked <'s
  text = text.replace(/<(?![a-z\/?$!])/gi, '&lt;');

  // Encode <
  text = text.replace(/</g, '&lt;');

  // Encode >
  text = text.replace(/>/g, '&gt;');

  text = globals.converter._dispatch('encodeAmpsAndAngles.after', text, options, globals);
  return text;
});

/**
 * Returns the string, with after processing the following backslash escape sequences.
 *
 * attacklab: The polite way to do this is with the new escapeCharacters() function:
 *
 *    text = escapeCharacters(text,"\\",true);
 *    text = escapeCharacters(text,"`*_{}[]()>#+-.!",true);
 *
 * ...but we're sidestepping its use of the (slow) RegExp constructor
 * as an optimization for Firefox.  This function gets called a LOT.
 */
showdown.subParser('encodeBackslashEscapes', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('encodeBackslashEscapes.before', text, options, globals);

  text = text.replace(/\\(\\)/g, showdown.helper.escapeCharactersCallback);
  text = text.replace(/\\([`*_{}\[\]()>#+.!~=|-])/g, showdown.helper.escapeCharactersCallback);

  text = globals.converter._dispatch('encodeBackslashEscapes.after', text, options, globals);
  return text;
});

/**
 * Encode/escape certain characters inside Markdown code runs.
 * The point is that in code, these characters are literals,
 * and lose their special Markdown meanings.
 */
showdown.subParser('encodeCode', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('encodeCode.before', text, options, globals);

  // Encode all ampersands; HTML entities are not
  // entities within a Markdown code span.
  text = text
    .replace(/&/g, '&amp;')
  // Do the angle bracket song and dance:
    .replace(/</g, '&lt;')
    .replace(/>/g, '&gt;')
  // Now, escape characters that are magic in Markdown:
    .replace(/([*_{}\[\]\\=~-])/g, showdown.helper.escapeCharactersCallback);

  text = globals.converter._dispatch('encodeCode.after', text, options, globals);
  return text;
});

/**
 * Within tags -- meaning between < and > -- encode [\ ` * _ ~ =] so they
 * don't conflict with their use in Markdown for code, italics and strong.
 */
showdown.subParser('escapeSpecialCharsWithinTagAttributes', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('escapeSpecialCharsWithinTagAttributes.before', text, options, globals);

  // Build a regex to find HTML tags.
  var tags     = /<\/?[a-z\d_:-]+(?:[\s]+[\s\S]+?)?>/gi,
      comments = /<!(--(?:(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--)>/gi;

  text = text.replace(tags, function (wholeMatch) {
    return wholeMatch
      .replace(/(.)<\/?code>(?=.)/g, '$1`')
      .replace(/([\\`*_~=|])/g, showdown.helper.escapeCharactersCallback);
  });

  text = text.replace(comments, function (wholeMatch) {
    return wholeMatch
      .replace(/([\\`*_~=|])/g, showdown.helper.escapeCharactersCallback);
  });

  text = globals.converter._dispatch('escapeSpecialCharsWithinTagAttributes.after', text, options, globals);
  return text;
});

/**
 * Handle github codeblocks prior to running HashHTML so that
 * HTML contained within the codeblock gets escaped properly
 * Example:
 * ```ruby
 *     def hello_world(x)
 *       puts "Hello, #{x}"
 *     end
 * ```
 */
showdown.subParser('githubCodeBlocks', function (text, options, globals) {
  'use strict';

  // early exit if option is not enabled
  if (!options.ghCodeBlocks) {
    return text;
  }

  text = globals.converter._dispatch('githubCodeBlocks.before', text, options, globals);

  text += '¨0';

  text = text.replace(/(?:^|\n)(?: {0,3})(```+|~~~+)(?: *)([^\s`~]*)\n([\s\S]*?)\n(?: {0,3})\1/g, function (wholeMatch, delim, language, codeblock) {
    var end = (options.omitExtraWLInCodeBlocks) ? '' : '\n';

    // First parse the github code block
    codeblock = showdown.subParser('encodeCode')(codeblock, options, globals);
    codeblock = showdown.subParser('detab')(codeblock, options, globals);
    codeblock = codeblock.replace(/^\n+/g, ''); // trim leading newlines
    codeblock = codeblock.replace(/\n+$/g, ''); // trim trailing whitespace

    codeblock = '<pre><code' + (language ? ' class="' + language + ' language-' + language + '"' : '') + '>' + codeblock + end + '</code></pre>';

    codeblock = showdown.subParser('hashBlock')(codeblock, options, globals);

    // Since GHCodeblocks can be false positives, we need to
    // store the primitive text and the parsed text in a global var,
    // and then return a token
    return '\n\n¨G' + (globals.ghCodeBlocks.push({text: wholeMatch, codeblock: codeblock}) - 1) + 'G\n\n';
  });

  // attacklab: strip sentinel
  text = text.replace(/¨0/, '');

  return globals.converter._dispatch('githubCodeBlocks.after', text, options, globals);
});

showdown.subParser('hashBlock', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('hashBlock.before', text, options, globals);
  text = text.replace(/(^\n+|\n+$)/g, '');
  text = '\n\n¨K' + (globals.gHtmlBlocks.push(text) - 1) + 'K\n\n';
  text = globals.converter._dispatch('hashBlock.after', text, options, globals);
  return text;
});

/**
 * Hash and escape <code> elements that should not be parsed as markdown
 */
showdown.subParser('hashCodeTags', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('hashCodeTags.before', text, options, globals);

  var repFunc = function (wholeMatch, match, left, right) {
    var codeblock = left + showdown.subParser('encodeCode')(match, options, globals) + right;
    return '¨C' + (globals.gHtmlSpans.push(codeblock) - 1) + 'C';
  };

  // Hash naked <code>
  text = showdown.helper.replaceRecursiveRegExp(text, repFunc, '<code\\b[^>]*>', '</code>', 'gim');

  text = globals.converter._dispatch('hashCodeTags.after', text, options, globals);
  return text;
});

showdown.subParser('hashElement', function (text, options, globals) {
  'use strict';

  return function (wholeMatch, m1) {
    var blockText = m1;

    // Undo double lines
    blockText = blockText.replace(/\n\n/g, '\n');
    blockText = blockText.replace(/^\n/, '');

    // strip trailing blank lines
    blockText = blockText.replace(/\n+$/g, '');

    // Replace the element text with a marker ("¨KxK" where x is its key)
    blockText = '\n\n¨K' + (globals.gHtmlBlocks.push(blockText) - 1) + 'K\n\n';

    return blockText;
  };
});

showdown.subParser('hashHTMLBlocks', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('hashHTMLBlocks.before', text, options, globals);

  var blockTags = [
        'pre',
        'div',
        'h1',
        'h2',
        'h3',
        'h4',
        'h5',
        'h6',
        'blockquote',
        'table',
        'dl',
        'ol',
        'ul',
        'script',
        'noscript',
        'form',
        'fieldset',
        'iframe',
        'math',
        'style',
        'section',
        'header',
        'footer',
        'nav',
        'article',
        'aside',
        'address',
        'audio',
        'canvas',
        'figure',
        'hgroup',
        'output',
        'video',
        'p'
      ],
      repFunc = function (wholeMatch, match, left, right) {
        var txt = wholeMatch;
        // check if this html element is marked as markdown
        // if so, it's contents should be parsed as markdown
        if (left.search(/\bmarkdown\b/) !== -1) {
          txt = left + globals.converter.makeHtml(match) + right;
        }
        return '\n\n¨K' + (globals.gHtmlBlocks.push(txt) - 1) + 'K\n\n';
      };

  if (options.backslashEscapesHTMLTags) {
    // encode backslash escaped HTML tags
    text = text.replace(/\\<(\/?[^>]+?)>/g, function (wm, inside) {
      return '&lt;' + inside + '&gt;';
    });
  }

  // hash HTML Blocks
  for (var i = 0; i < blockTags.length; ++i) {

    var opTagPos,
        rgx1     = new RegExp('^ {0,3}(<' + blockTags[i] + '\\b[^>]*>)', 'im'),
        patLeft  = '<' + blockTags[i] + '\\b[^>]*>',
        patRight = '</' + blockTags[i] + '>';
    // 1. Look for the first position of the first opening HTML tag in the text
    while ((opTagPos = showdown.helper.regexIndexOf(text, rgx1)) !== -1) {

      // if the HTML tag is \ escaped, we need to escape it and break


      //2. Split the text in that position
      var subTexts = showdown.helper.splitAtIndex(text, opTagPos),
          //3. Match recursively
          newSubText1 = showdown.helper.replaceRecursiveRegExp(subTexts[1], repFunc, patLeft, patRight, 'im');

      // prevent an infinite loop
      if (newSubText1 === subTexts[1]) {
        break;
      }
      text = subTexts[0].concat(newSubText1);
    }
  }
  // HR SPECIAL CASE
  text = text.replace(/(\n {0,3}(<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g,
    showdown.subParser('hashElement')(text, options, globals));

  // Special case for standalone HTML comments
  text = showdown.helper.replaceRecursiveRegExp(text, function (txt) {
    return '\n\n¨K' + (globals.gHtmlBlocks.push(txt) - 1) + 'K\n\n';
  }, '^ {0,3}<!--', '-->', 'gm');

  // PHP and ASP-style processor instructions (<?...?> and <%...%>)
  text = text.replace(/(?:\n\n)( {0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g,
    showdown.subParser('hashElement')(text, options, globals));

  text = globals.converter._dispatch('hashHTMLBlocks.after', text, options, globals);
  return text;
});

/**
 * Hash span elements that should not be parsed as markdown
 */
showdown.subParser('hashHTMLSpans', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('hashHTMLSpans.before', text, options, globals);

  function hashHTMLSpan (html) {
    return '¨C' + (globals.gHtmlSpans.push(html) - 1) + 'C';
  }

  // Hash Self Closing tags
  text = text.replace(/<[^>]+?\/>/gi, function (wm) {
    return hashHTMLSpan(wm);
  });

  // Hash tags without properties
  text = text.replace(/<([^>]+?)>[\s\S]*?<\/\1>/g, function (wm) {
    return hashHTMLSpan(wm);
  });

  // Hash tags with properties
  text = text.replace(/<([^>]+?)\s[^>]+?>[\s\S]*?<\/\1>/g, function (wm) {
    return hashHTMLSpan(wm);
  });

  // Hash self closing tags without />
  text = text.replace(/<[^>]+?>/gi, function (wm) {
    return hashHTMLSpan(wm);
  });

  /*showdown.helper.matchRecursiveRegExp(text, '<code\\b[^>]*>', '</code>', 'gi');*/

  text = globals.converter._dispatch('hashHTMLSpans.after', text, options, globals);
  return text;
});

/**
 * Unhash HTML spans
 */
showdown.subParser('unhashHTMLSpans', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('unhashHTMLSpans.before', text, options, globals);

  for (var i = 0; i < globals.gHtmlSpans.length; ++i) {
    var repText = globals.gHtmlSpans[i],
        // limiter to prevent infinite loop (assume 10 as limit for recurse)
        limit = 0;

    while (/¨C(\d+)C/.test(repText)) {
      var num = RegExp.$1;
      repText = repText.replace('¨C' + num + 'C', globals.gHtmlSpans[num]);
      if (limit === 10) {
        console.error('maximum nesting of 10 spans reached!!!');
        break;
      }
      ++limit;
    }
    text = text.replace('¨C' + i + 'C', repText);
  }

  text = globals.converter._dispatch('unhashHTMLSpans.after', text, options, globals);
  return text;
});

/**
 * Hash and escape <pre><code> elements that should not be parsed as markdown
 */
showdown.subParser('hashPreCodeTags', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('hashPreCodeTags.before', text, options, globals);

  var repFunc = function (wholeMatch, match, left, right) {
    // encode html entities
    var codeblock = left + showdown.subParser('encodeCode')(match, options, globals) + right;
    return '\n\n¨G' + (globals.ghCodeBlocks.push({text: wholeMatch, codeblock: codeblock}) - 1) + 'G\n\n';
  };

  // Hash <pre><code>
  text = showdown.helper.replaceRecursiveRegExp(text, repFunc, '^ {0,3}<pre\\b[^>]*>\\s*<code\\b[^>]*>', '^ {0,3}</code>\\s*</pre>', 'gim');

  text = globals.converter._dispatch('hashPreCodeTags.after', text, options, globals);
  return text;
});

showdown.subParser('headers', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('headers.before', text, options, globals);

  var headerLevelStart = (isNaN(parseInt(options.headerLevelStart))) ? 1 : parseInt(options.headerLevelStart),

      // Set text-style headers:
      //	Header 1
      //	========
      //
      //	Header 2
      //	--------
      //
      setextRegexH1 = (options.smoothLivePreview) ? /^(.+)[ \t]*\n={2,}[ \t]*\n+/gm : /^(.+)[ \t]*\n=+[ \t]*\n+/gm,
      setextRegexH2 = (options.smoothLivePreview) ? /^(.+)[ \t]*\n-{2,}[ \t]*\n+/gm : /^(.+)[ \t]*\n-+[ \t]*\n+/gm;

  text = text.replace(setextRegexH1, function (wholeMatch, m1) {

    var spanGamut = showdown.subParser('spanGamut')(m1, options, globals),
        hID = (options.noHeaderId) ? '' : ' id="' + headerId(m1) + '"',
        hLevel = headerLevelStart,
        hashBlock = '<h' + hLevel + hID + '>' + spanGamut + '</h' + hLevel + '>';
    return showdown.subParser('hashBlock')(hashBlock, options, globals);
  });

  text = text.replace(setextRegexH2, function (matchFound, m1) {
    var spanGamut = showdown.subParser('spanGamut')(m1, options, globals),
        hID = (options.noHeaderId) ? '' : ' id="' + headerId(m1) + '"',
        hLevel = headerLevelStart + 1,
        hashBlock = '<h' + hLevel + hID + '>' + spanGamut + '</h' + hLevel + '>';
    return showdown.subParser('hashBlock')(hashBlock, options, globals);
  });

  // atx-style headers:
  //  # Header 1
  //  ## Header 2
  //  ## Header 2 with closing hashes ##
  //  ...
  //  ###### Header 6
  //
  var atxStyle = (options.requireSpaceBeforeHeadingText) ? /^(#{1,6})[ \t]+(.+?)[ \t]*#*\n+/gm : /^(#{1,6})[ \t]*(.+?)[ \t]*#*\n+/gm;

  text = text.replace(atxStyle, function (wholeMatch, m1, m2) {
    var hText = m2;
    if (options.customizedHeaderId) {
      hText = m2.replace(/\s?\{([^{]+?)}\s*$/, '');
    }

    var span = showdown.subParser('spanGamut')(hText, options, globals),
        hID = (options.noHeaderId) ? '' : ' id="' + headerId(m2) + '"',
        hLevel = headerLevelStart - 1 + m1.length,
        header = '<h' + hLevel + hID + '>' + span + '</h' + hLevel + '>';

    return showdown.subParser('hashBlock')(header, options, globals);
  });

  function headerId (m) {
    var title,
        prefix;

    // It is separate from other options to allow combining prefix and customized
    if (options.customizedHeaderId) {
      var match = m.match(/\{([^{]+?)}\s*$/);
      if (match && match[1]) {
        m = match[1];
      }
    }

    title = m;

    // Prefix id to prevent causing inadvertent pre-existing style matches.
    if (showdown.helper.isString(options.prefixHeaderId)) {
      prefix = options.prefixHeaderId;
    } else if (options.prefixHeaderId === true) {
      prefix = 'section-';
    } else {
      prefix = '';
    }

    if (!options.rawPrefixHeaderId) {
      title = prefix + title;
    }

    if (options.ghCompatibleHeaderId) {
      title = title
        .replace(/ /g, '-')
        // replace previously escaped chars (&, ¨ and $)
        .replace(/&amp;/g, '')
        .replace(/¨T/g, '')
        .replace(/¨D/g, '')
        // replace rest of the chars (&~$ are repeated as they might have been escaped)
        // borrowed from github's redcarpet (some they should produce similar results)
        .replace(/[&+$,\/:;=?@"#{}|^¨~\[\]`\\*)(%.!'<>]/g, '')
        .toLowerCase();
    } else if (options.rawHeaderId) {
      title = title
        .replace(/ /g, '-')
        // replace previously escaped chars (&, ¨ and $)
        .replace(/&amp;/g, '&')
        .replace(/¨T/g, '¨')
        .replace(/¨D/g, '$')
        // replace " and '
        .replace(/["']/g, '-')
        .toLowerCase();
    } else {
      title = title
        .replace(/[^\w]/g, '')
        .toLowerCase();
    }

    if (options.rawPrefixHeaderId) {
      title = prefix + title;
    }

    if (globals.hashLinkCounts[title]) {
      title = title + '-' + (globals.hashLinkCounts[title]++);
    } else {
      globals.hashLinkCounts[title] = 1;
    }
    return title;
  }

  text = globals.converter._dispatch('headers.after', text, options, globals);
  return text;
});

/**
 * Turn Markdown link shortcuts into XHTML <a> tags.
 */
showdown.subParser('horizontalRule', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('horizontalRule.before', text, options, globals);

  var key = showdown.subParser('hashBlock')('<hr />', options, globals);
  text = text.replace(/^ {0,2}( ?-){3,}[ \t]*$/gm, key);
  text = text.replace(/^ {0,2}( ?\*){3,}[ \t]*$/gm, key);
  text = text.replace(/^ {0,2}( ?_){3,}[ \t]*$/gm, key);

  text = globals.converter._dispatch('horizontalRule.after', text, options, globals);
  return text;
});

/**
 * Turn Markdown image shortcuts into <img> tags.
 */
showdown.subParser('images', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('images.before', text, options, globals);

  var inlineRegExp      = /!\[([^\]]*?)][ \t]*()\([ \t]?<?([\S]+?(?:\([\S]*?\)[\S]*?)?)>?(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*(?:(["'])([^"]*?)\6)?[ \t]?\)/g,
      crazyRegExp       = /!\[([^\]]*?)][ \t]*()\([ \t]?<([^>]*)>(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*(?:(?:(["'])([^"]*?)\6))?[ \t]?\)/g,
      base64RegExp      = /!\[([^\]]*?)][ \t]*()\([ \t]?<?(data:.+?\/.+?;base64,[A-Za-z0-9+/=\n]+?)>?(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*(?:(["'])([^"]*?)\6)?[ \t]?\)/g,
      referenceRegExp   = /!\[([^\]]*?)] ?(?:\n *)?\[([\s\S]*?)]()()()()()/g,
      refShortcutRegExp = /!\[([^\[\]]+)]()()()()()/g;

  function writeImageTagBase64 (wholeMatch, altText, linkId, url, width, height, m5, title) {
    url = url.replace(/\s/g, '');
    return writeImageTag (wholeMatch, altText, linkId, url, width, height, m5, title);
  }

  function writeImageTag (wholeMatch, altText, linkId, url, width, height, m5, title) {

    var gUrls   = globals.gUrls,
        gTitles = globals.gTitles,
        gDims   = globals.gDimensions;

    linkId = linkId.toLowerCase();

    if (!title) {
      title = '';
    }
    // Special case for explicit empty url
    if (wholeMatch.search(/\(<?\s*>? ?(['"].*['"])?\)$/m) > -1) {
      url = '';

    } else if (url === '' || url === null) {
      if (linkId === '' || linkId === null) {
        // lower-case and turn embedded newlines into spaces
        linkId = altText.toLowerCase().replace(/ ?\n/g, ' ');
      }
      url = '#' + linkId;

      if (!showdown.helper.isUndefined(gUrls[linkId])) {
        url = gUrls[linkId];
        if (!showdown.helper.isUndefined(gTitles[linkId])) {
          title = gTitles[linkId];
        }
        if (!showdown.helper.isUndefined(gDims[linkId])) {
          width = gDims[linkId].width;
          height = gDims[linkId].height;
        }
      } else {
        return wholeMatch;
      }
    }

    altText = altText
      .replace(/"/g, '&quot;')
    //altText = showdown.helper.escapeCharacters(altText, '*_', false);
      .replace(showdown.helper.regexes.asteriskDashAndColon, showdown.helper.escapeCharactersCallback);
    //url = showdown.helper.escapeCharacters(url, '*_', false);
    url = url.replace(showdown.helper.regexes.asteriskDashAndColon, showdown.helper.escapeCharactersCallback);
    var result = '<img src="' + url + '" alt="' + altText + '"';

    if (title && showdown.helper.isString(title)) {
      title = title
        .replace(/"/g, '&quot;')
      //title = showdown.helper.escapeCharacters(title, '*_', false);
        .replace(showdown.helper.regexes.asteriskDashAndColon, showdown.helper.escapeCharactersCallback);
      result += ' title="' + title + '"';
    }

    if (width && height) {
      width  = (width === '*') ? 'auto' : width;
      height = (height === '*') ? 'auto' : height;

      result += ' width="' + width + '"';
      result += ' height="' + height + '"';
    }

    result += ' />';

    return result;
  }

  // First, handle reference-style labeled images: ![alt text][id]
  text = text.replace(referenceRegExp, writeImageTag);

  // Next, handle inline images:  ![alt text](url =<width>x<height> "optional title")

  // base64 encoded images
  text = text.replace(base64RegExp, writeImageTagBase64);

  // cases with crazy urls like ./image/cat1).png
  text = text.replace(crazyRegExp, writeImageTag);

  // normal cases
  text = text.replace(inlineRegExp, writeImageTag);

  // handle reference-style shortcuts: ![img text]
  text = text.replace(refShortcutRegExp, writeImageTag);

  text = globals.converter._dispatch('images.after', text, options, globals);
  return text;
});

showdown.subParser('italicsAndBold', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('italicsAndBold.before', text, options, globals);

  // it's faster to have 3 separate regexes for each case than have just one
  // because of backtracing, in some cases, it could lead to an exponential effect
  // called "catastrophic backtrace". Ominous!

  function parseInside (txt, left, right) {
    /*
    if (options.simplifiedAutoLink) {
      txt = showdown.subParser('simplifiedAutoLinks')(txt, options, globals);
    }
    */
    return left + txt + right;
  }

  // Parse underscores
  if (options.literalMidWordUnderscores) {
    text = text.replace(/\b___(\S[\s\S]*?)___\b/g, function (wm, txt) {
      return parseInside (txt, '<strong><em>', '</em></strong>');
    });
    text = text.replace(/\b__(\S[\s\S]*?)__\b/g, function (wm, txt) {
      return parseInside (txt, '<strong>', '</strong>');
    });
    text = text.replace(/\b_(\S[\s\S]*?)_\b/g, function (wm, txt) {
      return parseInside (txt, '<em>', '</em>');
    });
  } else {
    text = text.replace(/___(\S[\s\S]*?)___/g, function (wm, m) {
      return (/\S$/.test(m)) ? parseInside (m, '<strong><em>', '</em></strong>') : wm;
    });
    text = text.replace(/__(\S[\s\S]*?)__/g, function (wm, m) {
      return (/\S$/.test(m)) ? parseInside (m, '<strong>', '</strong>') : wm;
    });
    text = text.replace(/_([^\s_][\s\S]*?)_/g, function (wm, m) {
      // !/^_[^_]/.test(m) - test if it doesn't start with __ (since it seems redundant, we removed it)
      return (/\S$/.test(m)) ? parseInside (m, '<em>', '</em>') : wm;
    });
  }

  // Now parse asterisks
  if (options.literalMidWordAsterisks) {
    text = text.replace(/([^*]|^)\B\*\*\*(\S[\s\S]*?)\*\*\*\B(?!\*)/g, function (wm, lead, txt) {
      return parseInside (txt, lead + '<strong><em>', '</em></strong>');
    });
    text = text.replace(/([^*]|^)\B\*\*(\S[\s\S]*?)\*\*\B(?!\*)/g, function (wm, lead, txt) {
      return parseInside (txt, lead + '<strong>', '</strong>');
    });
    text = text.replace(/([^*]|^)\B\*(\S[\s\S]*?)\*\B(?!\*)/g, function (wm, lead, txt) {
      return parseInside (txt, lead + '<em>', '</em>');
    });
  } else {
    text = text.replace(/\*\*\*(\S[\s\S]*?)\*\*\*/g, function (wm, m) {
      return (/\S$/.test(m)) ? parseInside (m, '<strong><em>', '</em></strong>') : wm;
    });
    text = text.replace(/\*\*(\S[\s\S]*?)\*\*/g, function (wm, m) {
      return (/\S$/.test(m)) ? parseInside (m, '<strong>', '</strong>') : wm;
    });
    text = text.replace(/\*([^\s*][\s\S]*?)\*/g, function (wm, m) {
      // !/^\*[^*]/.test(m) - test if it doesn't start with ** (since it seems redundant, we removed it)
      return (/\S$/.test(m)) ? parseInside (m, '<em>', '</em>') : wm;
    });
  }


  text = globals.converter._dispatch('italicsAndBold.after', text, options, globals);
  return text;
});

/**
 * Form HTML ordered (numbered) and unordered (bulleted) lists.
 */
showdown.subParser('lists', function (text, options, globals) {
  'use strict';

  /**
   * Process the contents of a single ordered or unordered list, splitting it
   * into individual list items.
   * @param {string} listStr
   * @param {boolean} trimTrailing
   * @returns {string}
   */
  function processListItems (listStr, trimTrailing) {
    // The $g_list_level global keeps track of when we're inside a list.
    // Each time we enter a list, we increment it; when we leave a list,
    // we decrement. If it's zero, we're not in a list anymore.
    //
    // We do this because when we're not inside a list, we want to treat
    // something like this:
    //
    //    I recommend upgrading to version
    //    8. Oops, now this line is treated
    //    as a sub-list.
    //
    // As a single paragraph, despite the fact that the second line starts
    // with a digit-period-space sequence.
    //
    // Whereas when we're inside a list (or sub-list), that line will be
    // treated as the start of a sub-list. What a kludge, huh? This is
    // an aspect of Markdown's syntax that's hard to parse perfectly
    // without resorting to mind-reading. Perhaps the solution is to
    // change the syntax rules such that sub-lists must start with a
    // starting cardinal number; e.g. "1." or "a.".
    globals.gListLevel++;

    // trim trailing blank lines:
    listStr = listStr.replace(/\n{2,}$/, '\n');

    // attacklab: add sentinel to emulate \z
    listStr += '¨0';

    var rgx = /(\n)?(^ {0,3})([*+-]|\d+[.])[ \t]+((\[(x|X| )?])?[ \t]*[^\r]+?(\n{1,2}))(?=\n*(¨0| {0,3}([*+-]|\d+[.])[ \t]+))/gm,
        isParagraphed = (/\n[ \t]*\n(?!¨0)/.test(listStr));

    // Since version 1.5, nesting sublists requires 4 spaces (or 1 tab) indentation,
    // which is a syntax breaking change
    // activating this option reverts to old behavior
    if (options.disableForced4SpacesIndentedSublists) {
      rgx = /(\n)?(^ {0,3})([*+-]|\d+[.])[ \t]+((\[(x|X| )?])?[ \t]*[^\r]+?(\n{1,2}))(?=\n*(¨0|\2([*+-]|\d+[.])[ \t]+))/gm;
    }

    listStr = listStr.replace(rgx, function (wholeMatch, m1, m2, m3, m4, taskbtn, checked) {
      checked = (checked && checked.trim() !== '');

      var item = showdown.subParser('outdent')(m4, options, globals),
          bulletStyle = '';

      // Support for github tasklists
      if (taskbtn && options.tasklists) {
        bulletStyle = ' class="task-list-item" style="list-style-type: none;"';
        item = item.replace(/^[ \t]*\[(x|X| )?]/m, function () {
          var otp = '<input type="checkbox" disabled style="margin: 0px 0.35em 0.25em -1.6em; vertical-align: middle;"';
          if (checked) {
            otp += ' checked';
          }
          otp += '>';
          return otp;
        });
      }

      // ISSUE #312
      // This input: - - - a
      // causes trouble to the parser, since it interprets it as:
      // <ul><li><li><li>a</li></li></li></ul>
      // instead of:
      // <ul><li>- - a</li></ul>
      // So, to prevent it, we will put a marker (¨A)in the beginning of the line
      // Kind of hackish/monkey patching, but seems more effective than overcomplicating the list parser
      item = item.replace(/^([-*+]|\d\.)[ \t]+[\S\n ]*/g, function (wm2) {
        return '¨A' + wm2;
      });

      // m1 - Leading line or
      // Has a double return (multi paragraph) or
      // Has sublist
      if (m1 || (item.search(/\n{2,}/) > -1)) {
        item = showdown.subParser('githubCodeBlocks')(item, options, globals);
        item = showdown.subParser('blockGamut')(item, options, globals);
      } else {
        // Recursion for sub-lists:
        item = showdown.subParser('lists')(item, options, globals);
        item = item.replace(/\n$/, ''); // chomp(item)
        item = showdown.subParser('hashHTMLBlocks')(item, options, globals);

        // Colapse double linebreaks
        item = item.replace(/\n\n+/g, '\n\n');
        if (isParagraphed) {
          item = showdown.subParser('paragraphs')(item, options, globals);
        } else {
          item = showdown.subParser('spanGamut')(item, options, globals);
        }
      }

      // now we need to remove the marker (¨A)
      item = item.replace('¨A', '');
      // we can finally wrap the line in list item tags
      item =  '<li' + bulletStyle + '>' + item + '</li>\n';

      return item;
    });

    // attacklab: strip sentinel
    listStr = listStr.replace(/¨0/g, '');

    globals.gListLevel--;

    if (trimTrailing) {
      listStr = listStr.replace(/\s+$/, '');
    }

    return listStr;
  }

  function styleStartNumber (list, listType) {
    // check if ol and starts by a number different than 1
    if (listType === 'ol') {
      var res = list.match(/^ *(\d+)\./);
      if (res && res[1] !== '1') {
        return ' start="' + res[1] + '"';
      }
    }
    return '';
  }

  /**
   * Check and parse consecutive lists (better fix for issue #142)
   * @param {string} list
   * @param {string} listType
   * @param {boolean} trimTrailing
   * @returns {string}
   */
  function parseConsecutiveLists (list, listType, trimTrailing) {
    // check if we caught 2 or more consecutive lists by mistake
    // we use the counterRgx, meaning if listType is UL we look for OL and vice versa
    var olRgx = (options.disableForced4SpacesIndentedSublists) ? /^ ?\d+\.[ \t]/gm : /^ {0,3}\d+\.[ \t]/gm,
        ulRgx = (options.disableForced4SpacesIndentedSublists) ? /^ ?[*+-][ \t]/gm : /^ {0,3}[*+-][ \t]/gm,
        counterRxg = (listType === 'ul') ? olRgx : ulRgx,
        result = '';

    if (list.search(counterRxg) !== -1) {
      (function parseCL (txt) {
        var pos = txt.search(counterRxg),
            style = styleStartNumber(list, listType);
        if (pos !== -1) {
          // slice
          result += '\n\n<' + listType + style + '>\n' + processListItems(txt.slice(0, pos), !!trimTrailing) + '</' + listType + '>\n';

          // invert counterType and listType
          listType = (listType === 'ul') ? 'ol' : 'ul';
          counterRxg = (listType === 'ul') ? olRgx : ulRgx;

          //recurse
          parseCL(txt.slice(pos));
        } else {
          result += '\n\n<' + listType + style + '>\n' + processListItems(txt, !!trimTrailing) + '</' + listType + '>\n';
        }
      })(list);
    } else {
      var style = styleStartNumber(list, listType);
      result = '\n\n<' + listType + style + '>\n' + processListItems(list, !!trimTrailing) + '</' + listType + '>\n';
    }

    return result;
  }

  /** Start of list parsing **/
  text = globals.converter._dispatch('lists.before', text, options, globals);
  // add sentinel to hack around khtml/safari bug:
  // http://bugs.webkit.org/show_bug.cgi?id=11231
  text += '¨0';

  if (globals.gListLevel) {
    text = text.replace(/^(( {0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(¨0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm,
      function (wholeMatch, list, m2) {
        var listType = (m2.search(/[*+-]/g) > -1) ? 'ul' : 'ol';
        return parseConsecutiveLists(list, listType, true);
      }
    );
  } else {
    text = text.replace(/(\n\n|^\n?)(( {0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(¨0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm,
      function (wholeMatch, m1, list, m3) {
        var listType = (m3.search(/[*+-]/g) > -1) ? 'ul' : 'ol';
        return parseConsecutiveLists(list, listType, false);
      }
    );
  }

  // strip sentinel
  text = text.replace(/¨0/, '');
  text = globals.converter._dispatch('lists.after', text, options, globals);
  return text;
});

/**
 * Parse metadata at the top of the document
 */
showdown.subParser('metadata', function (text, options, globals) {
  'use strict';

  if (!options.metadata) {
    return text;
  }

  text = globals.converter._dispatch('metadata.before', text, options, globals);

  function parseMetadataContents (content) {
    // raw is raw so it's not changed in any way
    globals.metadata.raw = content;

    // escape chars forbidden in html attributes
    // double quotes
    content = content
      // ampersand first
      .replace(/&/g, '&amp;')
      // double quotes
      .replace(/"/g, '&quot;');

    content = content.replace(/\n {4}/g, ' ');
    content.replace(/^([\S ]+): +([\s\S]+?)$/gm, function (wm, key, value) {
      globals.metadata.parsed[key] = value;
      return '';
    });
  }

  text = text.replace(/^\s*«««+(\S*?)\n([\s\S]+?)\n»»»+\n/, function (wholematch, format, content) {
    parseMetadataContents(content);
    return '¨M';
  });

  text = text.replace(/^\s*---+(\S*?)\n([\s\S]+?)\n---+\n/, function (wholematch, format, content) {
    if (format) {
      globals.metadata.format = format;
    }
    parseMetadataContents(content);
    return '¨M';
  });

  text = text.replace(/¨M/g, '');

  text = globals.converter._dispatch('metadata.after', text, options, globals);
  return text;
});

/**
 * Remove one level of line-leading tabs or spaces
 */
showdown.subParser('outdent', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('outdent.before', text, options, globals);

  // attacklab: hack around Konqueror 3.5.4 bug:
  // "----------bug".replace(/^-/g,"") == "bug"
  text = text.replace(/^(\t|[ ]{1,4})/gm, '¨0'); // attacklab: g_tab_width

  // attacklab: clean up hack
  text = text.replace(/¨0/g, '');

  text = globals.converter._dispatch('outdent.after', text, options, globals);
  return text;
});

/**
 *
 */
showdown.subParser('paragraphs', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('paragraphs.before', text, options, globals);
  // Strip leading and trailing lines:
  text = text.replace(/^\n+/g, '');
  text = text.replace(/\n+$/g, '');

  var grafs = text.split(/\n{2,}/g),
      grafsOut = [],
      end = grafs.length; // Wrap <p> tags

  for (var i = 0; i < end; i++) {
    var str = grafs[i];
    // if this is an HTML marker, copy it
    if (str.search(/¨(K|G)(\d+)\1/g) >= 0) {
      grafsOut.push(str);

    // test for presence of characters to prevent empty lines being parsed
    // as paragraphs (resulting in undesired extra empty paragraphs)
    } else if (str.search(/\S/) >= 0) {
      str = showdown.subParser('spanGamut')(str, options, globals);
      str = str.replace(/^([ \t]*)/g, '<p>');
      str += '</p>';
      grafsOut.push(str);
    }
  }

  /** Unhashify HTML blocks */
  end = grafsOut.length;
  for (i = 0; i < end; i++) {
    var blockText = '',
        grafsOutIt = grafsOut[i],
        codeFlag = false;
    // if this is a marker for an html block...
    // use RegExp.test instead of string.search because of QML bug
    while (/¨(K|G)(\d+)\1/.test(grafsOutIt)) {
      var delim = RegExp.$1,
          num   = RegExp.$2;

      if (delim === 'K') {
        blockText = globals.gHtmlBlocks[num];
      } else {
        // we need to check if ghBlock is a false positive
        if (codeFlag) {
          // use encoded version of all text
          blockText = showdown.subParser('encodeCode')(globals.ghCodeBlocks[num].text, options, globals);
        } else {
          blockText = globals.ghCodeBlocks[num].codeblock;
        }
      }
      blockText = blockText.replace(/\$/g, '$$$$'); // Escape any dollar signs

      grafsOutIt = grafsOutIt.replace(/(\n\n)?¨(K|G)\d+\2(\n\n)?/, blockText);
      // Check if grafsOutIt is a pre->code
      if (/^<pre\b[^>]*>\s*<code\b[^>]*>/.test(grafsOutIt)) {
        codeFlag = true;
      }
    }
    grafsOut[i] = grafsOutIt;
  }
  text = grafsOut.join('\n');
  // Strip leading and trailing lines:
  text = text.replace(/^\n+/g, '');
  text = text.replace(/\n+$/g, '');
  return globals.converter._dispatch('paragraphs.after', text, options, globals);
});

/**
 * Run extension
 */
showdown.subParser('runExtension', function (ext, text, options, globals) {
  'use strict';

  if (ext.filter) {
    text = ext.filter(text, globals.converter, options);

  } else if (ext.regex) {
    // TODO remove this when old extension loading mechanism is deprecated
    var re = ext.regex;
    if (!(re instanceof RegExp)) {
      re = new RegExp(re, 'g');
    }
    text = text.replace(re, ext.replace);
  }

  return text;
});

/**
 * These are all the transformations that occur *within* block-level
 * tags like paragraphs, headers, and list items.
 */
showdown.subParser('spanGamut', function (text, options, globals) {
  'use strict';

  text = globals.converter._dispatch('spanGamut.before', text, options, globals);
  text = showdown.subParser('codeSpans')(text, options, globals);
  text = showdown.subParser('escapeSpecialCharsWithinTagAttributes')(text, options, globals);
  text = showdown.subParser('encodeBackslashEscapes')(text, options, globals);

  // Process anchor and image tags. Images must come first,
  // because ![foo][f] looks like an anchor.
  text = showdown.subParser('images')(text, options, globals);
  text = showdown.subParser('anchors')(text, options, globals);

  // Make links out of things like `<http://example.com/>`
  // Must come after anchors, because you can use < and >
  // delimiters in inline links like [this](<url>).
  text = showdown.subParser('autoLinks')(text, options, globals);
  text = showdown.subParser('simplifiedAutoLinks')(text, options, globals);
  text = showdown.subParser('emoji')(text, options, globals);
  text = showdown.subParser('underline')(text, options, globals);
  text = showdown.subParser('italicsAndBold')(text, options, globals);
  text = showdown.subParser('strikethrough')(text, options, globals);
  text = showdown.subParser('ellipsis')(text, options, globals);

  // we need to hash HTML tags inside spans
  text = showdown.subParser('hashHTMLSpans')(text, options, globals);

  // now we encode amps and angles
  text = showdown.subParser('encodeAmpsAndAngles')(text, options, globals);

  // Do hard breaks
  if (options.simpleLineBreaks) {
    // GFM style hard breaks
    // only add line breaks if the text does not contain a block (special case for lists)
    if (!/\n\n¨K/.test(text)) {
      text = text.replace(/\n+/g, '<br />\n');
    }
  } else {
    // Vanilla hard breaks
    text = text.replace(/  +\n/g, '<br />\n');
  }

  text = globals.converter._dispatch('spanGamut.after', text, options, globals);
  return text;
});

showdown.subParser('strikethrough', function (text, options, globals) {
  'use strict';

  function parseInside (txt) {
    if (options.simplifiedAutoLink) {
      txt = showdown.subParser('simplifiedAutoLinks')(txt, options, globals);
    }
    return '<del>' + txt + '</del>';
  }

  if (options.strikethrough) {
    text = globals.converter._dispatch('strikethrough.before', text, options, globals);
    text = text.replace(/(?:~){2}([\s\S]+?)(?:~){2}/g, function (wm, txt) { return parseInside(txt); });
    text = globals.converter._dispatch('strikethrough.after', text, options, globals);
  }

  return text;
});

/**
 * Strips link definitions from text, stores the URLs and titles in
 * hash references.
 * Link defs are in the form: ^[id]: url "optional title"
 */
showdown.subParser('stripLinkDefinitions', function (text, options, globals) {
  'use strict';

  var regex       = /^ {0,3}\[(.+)]:[ \t]*\n?[ \t]*<?([^>\s]+)>?(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*\n?[ \t]*(?:(\n*)["|'(](.+?)["|')][ \t]*)?(?:\n+|(?=¨0))/gm,
      base64Regex = /^ {0,3}\[(.+)]:[ \t]*\n?[ \t]*<?(data:.+?\/.+?;base64,[A-Za-z0-9+/=\n]+?)>?(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*\n?[ \t]*(?:(\n*)["|'(](.+?)["|')][ \t]*)?(?:\n\n|(?=¨0)|(?=\n\[))/gm;

  // attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
  text += '¨0';

  var replaceFunc = function (wholeMatch, linkId, url, width, height, blankLines, title) {
    linkId = linkId.toLowerCase();
    if (url.match(/^data:.+?\/.+?;base64,/)) {
      // remove newlines
      globals.gUrls[linkId] = url.replace(/\s/g, '');
    } else {
      globals.gUrls[linkId] = showdown.subParser('encodeAmpsAndAngles')(url, options, globals);  // Link IDs are case-insensitive
    }

    if (blankLines) {
      // Oops, found blank lines, so it's not a title.
      // Put back the parenthetical statement we stole.
      return blankLines + title;

    } else {

else is not necessary here since all if branches return, consider removing it to reduce nesting and make code more readable.

      if (title) {
        globals.gTitles[linkId] = title.replace(/"|'/g, '"');
      }
      if (options.parseImgDimensions && width && height) {
        globals.gDimensions[linkId] = {
          width:  width,
          height: height
        };
      }
    }
    // Completely remove the definition from the text
    return '';
  };

  // first we try to find base64 link references
  text = text.replace(base64Regex, replaceFunc);

  text = text.replace(regex, replaceFunc);

  // attacklab: strip sentinel
  text = text.replace(/¨0/, '');

  return text;
});

showdown.subParser('tables', function (text, options, globals) {
  'use strict';

  if (!options.tables) {
    return text;
  }

  var tableRgx       = /^ {0,3}\|?.+\|.+\n {0,3}\|?[ \t]*:?[ \t]*(?:[-=]){2,}[ \t]*:?[ \t]*\|[ \t]*:?[ \t]*(?:[-=]){2,}[\s\S]+?(?:\n\n|¨0)/gm,
      //singeColTblRgx = /^ {0,3}\|.+\|\n {0,3}\|[ \t]*:?[ \t]*(?:[-=]){2,}[ \t]*:?[ \t]*\|[ \t]*\n(?: {0,3}\|.+\|\n)+(?:\n\n|¨0)/gm;
      singeColTblRgx = /^ {0,3}\|.+\|[ \t]*\n {0,3}\|[ \t]*:?[ \t]*(?:[-=]){2,}[ \t]*:?[ \t]*\|[ \t]*\n( {0,3}\|.+\|[ \t]*\n)*(?:\n|¨0)/gm;

  function parseStyles (sLine) {
    if (/^:[ \t]*--*$/.test(sLine)) {
      return ' style="text-align:left;"';
    } else if (/^--*[ \t]*:[ \t]*$/.test(sLine)) {
      return ' style="text-align:right;"';
    } else if (/^:[ \t]*--*[ \t]*:$/.test(sLine)) {
      return ' style="text-align:center;"';
    } else {
      return '';
    }
  }

  function parseHeaders (header, style) {
    var id = '';
    header = header.trim();
    // support both tablesHeaderId and tableHeaderId due to error in documentation so we don't break backwards compatibility
    if (options.tablesHeaderId || options.tableHeaderId) {
      id = ' id="' + header.replace(/ /g, '_').toLowerCase() + '"';
    }
    header = showdown.subParser('spanGamut')(header, options, globals);

    return '<th' + id + style + '>' + header + '</th>\n';
  }

  function parseCells (cell, style) {
    var subText = showdown.subParser('spanGamut')(cell, options, globals);
    return '<td' + style + '>' + subText + '</td>\n';
  }

  function buildTable (headers, cells) {
    var tb = '<table>\n<thead>\n<tr>\n',
        tblLgn = headers.length;

    for (var i = 0; i < tblLgn; ++i) {
      tb += headers[i];
    }
    tb += '</tr>\n</thead>\n<tbody>\n';

    for (i = 0; i < cells.length; ++i) {
      tb += '<tr>\n';
      for (var ii = 0; ii < tblLgn; ++ii) {
        tb += cells[i][ii];
      }
      tb += '</tr>\n';
    }
    tb += '</tbody>\n</table>\n';
    return tb;
  }

  function parseTable (rawTable) {
    var i, tableLines = rawTable.split('\n');

    for (i = 0; i < tableLines.length; ++i) {
      // strip wrong first and last column if wrapped tables are used
      if (/^ {0,3}\|/.test(tableLines[i])) {
        tableLines[i] = tableLines[i].replace(/^ {0,3}\|/, '');
      }
      if (/\|[ \t]*$/.test(tableLines[i])) {
        tableLines[i] = tableLines[i].replace(/\|[ \t]*$/, '');
      }
      // parse code spans first, but we only support one line code spans
      tableLines[i] = showdown.subParser('codeSpans')(tableLines[i], options, globals);
    }

    var rawHeaders = tableLines[0].split('|').map(function (s) { return s.trim();}),
        rawStyles = tableLines[1].split('|').map(function (s) { return s.trim();}),
        rawCells = [],
        headers = [],
        styles = [],
        cells = [];

    tableLines.shift();
    tableLines.shift();

    for (i = 0; i < tableLines.length; ++i) {
      if (tableLines[i].trim() === '') {
        continue;
      }
      rawCells.push(
        tableLines[i]
          .split('|')
          .map(function (s) {
            return s.trim();
          })
      );
    }

    if (rawHeaders.length < rawStyles.length) {
      return rawTable;
    }

    for (i = 0; i < rawStyles.length; ++i) {
      styles.push(parseStyles(rawStyles[i]));
    }

    for (i = 0; i < rawHeaders.length; ++i) {
      if (showdown.helper.isUndefined(styles[i])) {
        styles[i] = '';
      }
      headers.push(parseHeaders(rawHeaders[i], styles[i]));
    }

    for (i = 0; i < rawCells.length; ++i) {
      var row = [];
      for (var ii = 0; ii < headers.length; ++ii) {
        if (showdown.helper.isUndefined(rawCells[i][ii])) {

This code block is empty. Consider removing it or adding a comment to explain.

        }
        row.push(parseCells(rawCells[i][ii], styles[ii]));
      }
      cells.push(row);
    }

    return buildTable(headers, cells);
  }

  text = globals.converter._dispatch('tables.before', text, options, globals);

  // find escaped pipe characters
  text = text.replace(/\\(\|)/g, showdown.helper.escapeCharactersCallback);

  // parse multi column tables
  text = text.replace(tableRgx, parseTable);

  // parse one column tables
  text = text.replace(singeColTblRgx, parseTable);

  text = globals.converter._dispatch('tables.after', text, options, globals);

  return text;
});

showdown.subParser('underline', function (text, options, globals) {
  'use strict';

  if (!options.underline) {
    return text;
  }

  text = globals.converter._dispatch('underline.before', text, options, globals);

  if (options.literalMidWordUnderscores) {
    text = text.replace(/\b___(\S[\s\S]*?)___\b/g, function (wm, txt) {
      return '<u>' + txt + '</u>';
    });
    text = text.replace(/\b__(\S[\s\S]*?)__\b/g, function (wm, txt) {
      return '<u>' + txt + '</u>';
    });
  } else {
    text = text.replace(/___(\S[\s\S]*?)___/g, function (wm, m) {
      return (/\S$/.test(m)) ? '<u>' + m + '</u>' : wm;
    });
    text = text.replace(/__(\S[\s\S]*?)__/g, function (wm, m) {
      return (/\S$/.test(m)) ? '<u>' + m + '</u>' : wm;
    });
  }

  // escape remaining underscores to prevent them being parsed by italic and bold
  text = text.replace(/(_)/g, showdown.helper.escapeCharactersCallback);

  text = globals.converter._dispatch('underline.after', text, options, globals);

  return text;
});

/**
 * Swap back in all the special characters we've hidden.
 */
showdown.subParser('unescapeSpecialChars', function (text, options, globals) {
  'use strict';
  text = globals.converter._dispatch('unescapeSpecialChars.before', text, options, globals);

  text = text.replace(/¨E(\d+)E/g, function (wholeMatch, m1) {
    var charCodeToReplace = parseInt(m1);
    return String.fromCharCode(charCodeToReplace);
  });

  text = globals.converter._dispatch('unescapeSpecialChars.after', text, options, globals);
  return text;
});

showdown.subParser('makeMarkdown.blockquote', function (node, globals) {
  'use strict';

  var txt = '';
  if (node.hasChildNodes()) {
    var children = node.childNodes,
        childrenLength = children.length;

    for (var i = 0; i < childrenLength; ++i) {
      var innerTxt = showdown.subParser('makeMarkdown.node')(children[i], globals);

      if (innerTxt === '') {
        continue;
      }
      txt += innerTxt;
    }
  }
  // cleanup
  txt = txt.trim();
  txt = '> ' + txt.split('\n').join('\n> ');
  return txt;
});

showdown.subParser('makeMarkdown.codeBlock', function (node, globals) {
  'use strict';

  var lang = node.getAttribute('language'),
      num  = node.getAttribute('precodenum');
  return '```' + lang + '\n' + globals.preList[num] + '\n```';
});

showdown.subParser('makeMarkdown.codeSpan', function (node) {
  'use strict';

  return '`' + node.innerHTML + '`';
});

showdown.subParser('makeMarkdown.emphasis', function (node, globals) {
  'use strict';

  var txt = '';
  if (node.hasChildNodes()) {
    txt += '*';
    var children = node.childNodes,
        childrenLength = children.length;
    for (var i = 0; i < childrenLength; ++i) {
      txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
    }
    txt += '*';
  }
  return txt;
});

showdown.subParser('makeMarkdown.header', function (node, globals, headerLevel) {
  'use strict';

  var headerMark = new Array(headerLevel + 1).join('#'),
      txt = '';

  if (node.hasChildNodes()) {
    txt = headerMark + ' ';
    var children = node.childNodes,
        childrenLength = children.length;

    for (var i = 0; i < childrenLength; ++i) {
      txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
    }
  }
  return txt;
});

showdown.subParser('makeMarkdown.hr', function () {
  'use strict';

  return '---';
});

showdown.subParser('makeMarkdown.image', function (node) {
  'use strict';

  var txt = '';
  if (node.hasAttribute('src')) {
    txt += '![' + node.getAttribute('alt') + '](';
    txt += '<' + node.getAttribute('src') + '>';
    if (node.hasAttribute('width') && node.hasAttribute('height')) {
      txt += ' =' + node.getAttribute('width') + 'x' + node.getAttribute('height');
    }

    if (node.hasAttribute('title')) {
      txt += ' "' + node.getAttribute('title') + '"';
    }
    txt += ')';
  }
  return txt;
});

showdown.subParser('makeMarkdown.links', function (node, globals) {
  'use strict';

  var txt = '';
  if (node.hasChildNodes() && node.hasAttribute('href')) {
    var children = node.childNodes,
        childrenLength = children.length;
    txt = '[';
    for (var i = 0; i < childrenLength; ++i) {
      txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
    }
    txt += '](';
    txt += '<' + node.getAttribute('href') + '>';
    if (node.hasAttribute('title')) {
      txt += ' "' + node.getAttribute('title') + '"';
    }
    txt += ')';
  }
  return txt;
});

showdown.subParser('makeMarkdown.list', function (node, globals, type) {
  'use strict';

  var txt = '';
  if (!node.hasChildNodes()) {
    return '';
  }
  var listItems       = node.childNodes,
      listItemsLenght = listItems.length,
      listNum = node.getAttribute('start') || 1;

  for (var i = 0; i < listItemsLenght; ++i) {
    if (typeof listItems[i].tagName === 'undefined' || listItems[i].tagName.toLowerCase() !== 'li') {
      continue;
    }

    // define the bullet to use in list
    var bullet = '';
    if (type === 'ol') {
      bullet = listNum.toString() + '. ';
    } else {
      bullet = '- ';
    }

    // parse list item
    txt += bullet + showdown.subParser('makeMarkdown.listItem')(listItems[i], globals);
    ++listNum;
  }

  // add comment at the end to prevent consecutive lists to be parsed as one
  txt += '\n<!-- -->\n';
  return txt.trim();
});

showdown.subParser('makeMarkdown.listItem', function (node, globals) {
  'use strict';

  var listItemTxt = '';

  var children = node.childNodes,
      childrenLenght = children.length;

  for (var i = 0; i < childrenLenght; ++i) {
    listItemTxt += showdown.subParser('makeMarkdown.node')(children[i], globals);
  }
  // if it's only one liner, we need to add a newline at the end
  if (!/\n$/.test(listItemTxt)) {
    listItemTxt += '\n';
  } else {
    // it's multiparagraph, so we need to indent
    listItemTxt = listItemTxt
      .split('\n')
      .join('\n    ')
      .replace(/^ {4}$/gm, '')
      .replace(/\n\n+/g, '\n\n');
  }

  return listItemTxt;
});



showdown.subParser('makeMarkdown.node', function (node, globals, spansOnly) {
  'use strict';

  spansOnly = spansOnly || false;

  var txt = '';

  // edge case of text without wrapper paragraph
  if (node.nodeType === 3) {
    return showdown.subParser('makeMarkdown.txt')(node, globals);
  }

  // HTML comment
  if (node.nodeType === 8) {
    return '<!--' + node.data + '-->\n\n';
  }

  // process only node elements
  if (node.nodeType !== 1) {
    return '';
  }

  var tagName = node.tagName.toLowerCase();

  switch (tagName) {

    //
    // BLOCKS
    //
    case 'h1':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 1) + '\n\n'; }
      break;
    case 'h2':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 2) + '\n\n'; }
      break;
    case 'h3':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 3) + '\n\n'; }
      break;
    case 'h4':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 4) + '\n\n'; }
      break;
    case 'h5':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 5) + '\n\n'; }
      break;
    case 'h6':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 6) + '\n\n'; }
      break;

    case 'p':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.paragraph')(node, globals) + '\n\n'; }
      break;

    case 'blockquote':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.blockquote')(node, globals) + '\n\n'; }
      break;

    case 'hr':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.hr')(node, globals) + '\n\n'; }
      break;

    case 'ol':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.list')(node, globals, 'ol') + '\n\n'; }
      break;

    case 'ul':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.list')(node, globals, 'ul') + '\n\n'; }
      break;

    case 'precode':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.codeBlock')(node, globals) + '\n\n'; }
      break;

    case 'pre':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.pre')(node, globals) + '\n\n'; }
      break;

    case 'table':
      if (!spansOnly) { txt = showdown.subParser('makeMarkdown.table')(node, globals) + '\n\n'; }
      break;

    //
    // SPANS
    //
    case 'code':
      txt = showdown.subParser('makeMarkdown.codeSpan')(node, globals);
      break;

    case 'em':
    case 'i':
      txt = showdown.subParser('makeMarkdown.emphasis')(node, globals);
      break;

    case 'strong':
    case 'b':
      txt = showdown.subParser('makeMarkdown.strong')(node, globals);
      break;

    case 'del':
      txt = showdown.subParser('makeMarkdown.strikethrough')(node, globals);
      break;

    case 'a':
      txt = showdown.subParser('makeMarkdown.links')(node, globals);
      break;

    case 'img':
      txt = showdown.subParser('makeMarkdown.image')(node, globals);
      break;

    default:
      txt = node.outerHTML + '\n\n';
  }

  // common normalization
  // TODO eventually

  return txt;
});

showdown.subParser('makeMarkdown.paragraph', function (node, globals) {
  'use strict';

  var txt = '';
  if (node.hasChildNodes()) {
    var children = node.childNodes,
        childrenLength = children.length;
    for (var i = 0; i < childrenLength; ++i) {
      txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
    }
  }

  // some text normalization
  txt = txt.trim();

  return txt;
});

showdown.subParser('makeMarkdown.pre', function (node, globals) {
  'use strict';

  var num  = node.getAttribute('prenum');
  return '<pre>' + globals.preList[num] + '</pre>';
});

showdown.subParser('makeMarkdown.strikethrough', function (node, globals) {
  'use strict';

  var txt = '';
  if (node.hasChildNodes()) {
    txt += '~~';
    var children = node.childNodes,
        childrenLength = children.length;
    for (var i = 0; i < childrenLength; ++i) {
      txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
    }
    txt += '~~';
  }
  return txt;
});

showdown.subParser('makeMarkdown.strong', function (node, globals) {
  'use strict';

  var txt = '';
  if (node.hasChildNodes()) {
    txt += '**';
    var children = node.childNodes,
        childrenLength = children.length;
    for (var i = 0; i < childrenLength; ++i) {
      txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
    }
    txt += '**';
  }
  return txt;
});

showdown.subParser('makeMarkdown.table', function (node, globals) {
  'use strict';

  var txt = '',
      tableArray = [[], []],
      headings   = node.querySelectorAll('thead>tr>th'),
      rows       = node.querySelectorAll('tbody>tr'),
      i, ii;
  for (i = 0; i < headings.length; ++i) {
    var headContent = showdown.subParser('makeMarkdown.tableCell')(headings[i], globals),
        allign = '---';

    if (headings[i].hasAttribute('style')) {
      var style = headings[i].getAttribute('style').toLowerCase().replace(/\s/g, '');
      switch (style) {
        case 'text-align:left;':
          allign = ':---';
          break;
        case 'text-align:right;':
          allign = '---:';
          break;
        case 'text-align:center;':
          allign = ':---:';
          break;
      }
    }
    tableArray[0][i] = headContent.trim();
    tableArray[1][i] = allign;
  }

  for (i = 0; i < rows.length; ++i) {
    var r = tableArray.push([]) - 1,
        cols = rows[i].getElementsByTagName('td');

    for (ii = 0; ii < headings.length; ++ii) {
      var cellContent = ' ';
      if (typeof cols[ii] !== 'undefined') {
        cellContent = showdown.subParser('makeMarkdown.tableCell')(cols[ii], globals);
      }
      tableArray[r].push(cellContent);
    }
  }

  var cellSpacesCount = 3;
  for (i = 0; i < tableArray.length; ++i) {
    for (ii = 0; ii < tableArray[i].length; ++ii) {
      var strLen = tableArray[i][ii].length;
      if (strLen > cellSpacesCount) {
        cellSpacesCount = strLen;
      }
    }
  }

  for (i = 0; i < tableArray.length; ++i) {
    for (ii = 0; ii < tableArray[i].length; ++ii) {
      if (i === 1) {
        if (tableArray[i][ii].slice(-1) === ':') {
          tableArray[i][ii] = showdown.helper.padEnd(tableArray[i][ii].slice(-1), cellSpacesCount - 1, '-') + ':';
        } else {
          tableArray[i][ii] = showdown.helper.padEnd(tableArray[i][ii], cellSpacesCount, '-');
        }
      } else {
        tableArray[i][ii] = showdown.helper.padEnd(tableArray[i][ii], cellSpacesCount);
      }
    }
    txt += '| ' + tableArray[i].join(' | ') + ' |\n';
  }

  return txt.trim();
});

showdown.subParser('makeMarkdown.tableCell', function (node, globals) {
  'use strict';

  var txt = '';
  if (!node.hasChildNodes()) {
    return '';
  }
  var children = node.childNodes,
      childrenLength = children.length;

  for (var i = 0; i < childrenLength; ++i) {
    txt += showdown.subParser('makeMarkdown.node')(children[i], globals, true);
  }
  return txt.trim();
});

showdown.subParser('makeMarkdown.txt', function (node) {
  'use strict';

  var txt = node.nodeValue;

  // multiple spaces are collapsed
  txt = txt.replace(/ +/g, ' ');

  // replace the custom ¨NBSP; with a space
  txt = txt.replace(/¨NBSP;/g, ' ');

  // ", <, > and & should replace escaped html entities
  txt = showdown.helper.unescapeHTMLEntities(txt);

  // escape markdown magic characters
  // emphasis, strong and strikethrough - can appear everywhere
  // we also escape pipe (|) because of tables
  // and escape ` because of code blocks and spans
  txt = txt.replace(/([*_~|`])/g, '\\$1');

  // escape > because of blockquotes
  txt = txt.replace(/^(\s*)>/g, '\\$1>');

  // hash character, only troublesome at the beginning of a line because of headers
  txt = txt.replace(/^#/gm, '\\#');

  // horizontal rules
  txt = txt.replace(/^(\s*)([-=]{3,})(\s*)$/, '$1\\$2$3');

  // dot, because of ordered lists, only troublesome at the beginning of a line when preceded by an integer
  txt = txt.replace(/^( {0,3}\d+)\./gm, '$1\\.');

  // +, * and -, at the beginning of a line becomes a list, so we need to escape them also (asterisk was already escaped)
  txt = txt.replace(/^( {0,3})([+-])/gm, '$1\\$2');

  // images and links, ] followed by ( is problematic, so we escape it
  txt = txt.replace(/]([\s]*)\(/g, '\\]$1\\(');

  // reference URIs must also be escaped
  txt = txt.replace(/^ {0,3}\[([\S \t]*?)]:/gm, '\\[$1]:');

  return txt;
});

var root = this;

// AMD Loader
if (typeof define === 'function' && define.amd) {
  define(function () {
    'use strict';
    return showdown;
  });

// CommonJS/nodeJS Loader
} else if (typeof module !== 'undefined' && module.exports) {
  module.exports = showdown;

// Regular Browser loader
} else {
  root.showdown = showdown;
}
}).call(this);

//# sourceMappingURL=showdown.js.map