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/**
 * marked - a markdown parser
 * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed)
 * https://github.com/markedjs/marked
 */

;(function(root) {
'use strict';

/**
 * Block-Level Grammar
 */

var block = {
  newline: /^\n+/,
  code: /^( {4}[^\n]+\n*)+/,
  fences: noop,
  hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\* *){3,})(?:\n+|$)/,
  heading: /^ *(#{1,6}) *([^\n]+?) *(?:#+ *)?(?:\n+|$)/,
  nptable: noop,
  blockquote: /^( {0,3}> ?(paragraph|[^\n]*)(?:\n|$))+/,
  list: /^( *)(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
  html: '^ {0,3}(?:' // optional indentation
    + '<(script|pre|style)[\\s>][\\s\\S]*?(?:[^\\n]*\\n+|$)' // (1)
    + '|comment[^\\n]*(\\n+|$)' // (2)
    + '|<\\?[\\s\\S]*?\\?>\\n*' // (3)
    + '|\\n*' // (4)
    + '|\\n*' // (5)
    + '|)[\\s\\S]*?(?:\\n{2,}|$)' // (6)
    + '|<(?!script|pre|style)([a-z][\\w-]*)(?:attribute)*? */?>(?=\\h*\\n)[\\s\\S]*?(?:\\n{2,}|$)' // (7) open tag
    + '|(?=\\h*\\n)[\\s\\S]*?(?:\\n{2,}|$)' // (7) closing tag
    + ')',
  def: /^ {0,3}\[(label)\]: *\n? *]+)>?(?:(?: +\n? *| *\n *)(title))? *(?:\n+|$)/,
  table: noop,
  lheading: /^([^\n]+)\n *(=|-){2,} *(?:\n+|$)/,
  paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading| {0,3}>|<\/?(?:tag)(?: +|\n|\/?>)|<(?:script|pre|style|!--))[^\n]+)*)/,
  text: /^[^\n]+/
};

block._label = /(?!\s*\])(?:\\[\[\]]|[^\[\]])+/;
block._title = /(?:"(?:\\"?|[^"\\])*"|'[^'\n]*(?:\n[^'\n]+)*\n?'|\([^()]*\))/;
block.def = edit(block.def)
  .replace('label', block._label)
  .replace('title', block._title)
  .getRegex();

block.bullet = /(?:[*+-]|\d+\.)/;
block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;
block.item = edit(block.item, 'gm')
  .replace(/bull/g, block.bullet)
  .getRegex();

block.list = edit(block.list)
  .replace(/bull/g, block.bullet)
  .replace('hr', '\\n+(?=\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$))')
  .replace('def', '\\n+(?=' + block.def.source + ')')
  .getRegex();

block._tag = 'address|article|aside|base|basefont|blockquote|body|caption'
  + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption'
  + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe'
  + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option'
  + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr'
  + '|track|ul';
block._comment = //;
block.html = edit(block.html, 'i')
  .replace('comment', block._comment)
  .replace('tag', block._tag)
  .replace('attribute', / +[a-zA-Z:_][\w.:-]*(?: *= *"[^"\n]*"| *= *'[^'\n]*'| *= *[^\s"'=<>`]+)?/)
  .getRegex();

block.paragraph = edit(block.paragraph)
  .replace('hr', block.hr)
  .replace('heading', block.heading)
  .replace('lheading', block.lheading)
  .replace('tag', block._tag) // pars can be interrupted by type (6) html blocks
  .getRegex();

block.blockquote = edit(block.blockquote)
  .replace('paragraph', block.paragraph)
  .getRegex();

/**
 * Normal Block Grammar
 */

block.normal = merge({}, block);

/**
 * GFM Block Grammar
 */

block.gfm = merge({}, block.normal, {
  fences: /^ *(`{3,}|~{3,})[ \.]*(\S+)? *\n([\s\S]*?)\n? *\1 *(?:\n+|$)/,
  paragraph: /^/,
  heading: /^ *(#{1,6}) +([^\n]+?) *#* *(?:\n+|$)/
});

block.gfm.paragraph = edit(block.paragraph)
  .replace('(?!', '(?!'
    + block.gfm.fences.source.replace('\\1', '\\2') + '|'
    + block.list.source.replace('\\1', '\\3') + '|')
  .getRegex();

/**
 * GFM + Tables Block Grammar
 */

block.tables = merge({}, block.gfm, {
  nptable: /^ *([^|\n ].*\|.*)\n *([-:]+ *\|[-| :]*)(?:\n((?:.*[^>\n ].*(?:\n|$))*)\n*|$)/,
  table: /^ *\|(.+)\n *\|?( *[-:]+[-| :]*)(?:\n((?: *[^>\n ].*(?:\n|$))*)\n*|$)/
});

/**
 * Pedantic grammar
 */

block.pedantic = merge({}, block.normal, {
  html: edit(
    '^ *(?:comment *(?:\\n|\\s*$)'
    + '|<(tag)[\\s\\S]+? *(?:\\n{2,}|\\s*$)' // closed tag
    + '|\\s]*)*?/?> *(?:\\n{2,}|\\s*$))')
    .replace('comment', block._comment)
    .replace(/tag/g, '(?!(?:'
      + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub'
      + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)'
      + '\\b)\\w+(?!:|[^\\w\\s@]*@)\\b')
    .getRegex(),
  def: /^ *\[([^\]]+)\]: *]+)>?(?: +(["(][^\n]+[")]))? *(?:\n+|$)/
});

/**
 * Block Lexer
 */

function Lexer(options) {
  this.tokens = [];
  this.tokens.links = {};
  this.options = options || marked.defaults;
  this.rules = block.normal;

  if (this.options.pedantic) {
    this.rules = block.pedantic;
  } else if (this.options.gfm) {
    if (this.options.tables) {
      this.rules = block.tables;
    } else {
      this.rules = block.gfm;
    }
  }
}

/**
 * Expose Block Rules
 */

Lexer.rules = block;

/**
 * Static Lex Method
 */

Lexer.lex = function(src, options) {
  var lexer = new Lexer(options);
  return lexer.lex(src);
};

/**
 * Preprocessing
 */

Lexer.prototype.lex = function(src) {
  src = src
    .replace(/\r\n|\r/g, '\n')
    .replace(/\t/g, '    ')
    .replace(/\u00a0/g, ' ')
    .replace(/\u2424/g, '\n');

  return this.token(src, true);
};

/**
 * Lexing
 */

Lexer.prototype.token = function(src, top) {
  src = src.replace(/^ +$/gm, '');
  var next,
      loose,
      cap,
      bull,
      b,
      item,
      space,
      i,
      tag,
      l,
      isordered,
      istask,
      ischecked;

  while (src) {
    // newline
    if (cap = this.rules.newline.exec(src)) {
      src = src.substring(cap[0].length);
      if (cap[0].length > 1) {
        this.tokens.push({
          type: 'space'
        });
      }
    }

    // code
    if (cap = this.rules.code.exec(src)) {
      src = src.substring(cap[0].length);
      cap = cap[0].replace(/^ {4}/gm, '');
      this.tokens.push({
        type: 'code',
        text: !this.options.pedantic
          ? rtrim(cap, '\n')
          : cap
      });
      continue;
    }

    // fences (gfm)
    if (cap = this.rules.fences.exec(src)) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'code',
        lang: cap[2],
        text: cap[3] || ''
      });
      continue;
    }

    // heading
    if (cap = this.rules.heading.exec(src)) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'heading',
        depth: cap[1].length,
        text: cap[2]
      });
      continue;
    }

    // table no leading pipe (gfm)
    if (top && (cap = this.rules.nptable.exec(src))) {
      item = {
        type: 'table',
        header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
        align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
        cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
      };

      if (item.header.length === item.align.length) {
        src = src.substring(cap[0].length);

        for (i = 0; i < item.align.length; i++) {
          if (/^ *-+: *$/.test(item.align[i])) {
            item.align[i] = 'right';
          } else if (/^ *:-+: *$/.test(item.align[i])) {
            item.align[i] = 'center';
          } else if (/^ *:-+ *$/.test(item.align[i])) {
            item.align[i] = 'left';
          } else {
            item.align[i] = null;
          }
        }

        for (i = 0; i < item.cells.length; i++) {
          item.cells[i] = splitCells(item.cells[i], item.header.length);
        }

        this.tokens.push(item);

        continue;
      }
    }

    // hr
    if (cap = this.rules.hr.exec(src)) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'hr'
      });
      continue;
    }

    // blockquote
    if (cap = this.rules.blockquote.exec(src)) {
      src = src.substring(cap[0].length);

      this.tokens.push({
        type: 'blockquote_start'
      });

      cap = cap[0].replace(/^ *> ?/gm, '');

      // Pass `top` to keep the current
      // "toplevel" state. This is exactly
      // how markdown.pl works.
      this.token(cap, top);

      this.tokens.push({
        type: 'blockquote_end'
      });

      continue;
    }

    // list
    if (cap = this.rules.list.exec(src)) {
      src = src.substring(cap[0].length);
      bull = cap[2];
      isordered = bull.length > 1;

      this.tokens.push({
        type: 'list_start',
        ordered: isordered,
        start: isordered ? +bull : ''
      });

      // Get each top-level item.
      cap = cap[0].match(this.rules.item);

      next = false;
      l = cap.length;
      i = 0;

      for (; i < l; i++) {
        item = cap[i];

        // Remove the list item's bullet
        // so it is seen as the next token.
        space = item.length;
        item = item.replace(/^ *([*+-]|\d+\.) +/, '');

        // Outdent whatever the
        // list item contains. Hacky.
        if (~item.indexOf('\n ')) {
          space -= item.length;
          item = !this.options.pedantic
            ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')
            : item.replace(/^ {1,4}/gm, '');
        }

        // Determine whether the next list item belongs here.
        // Backpedal if it does not belong in this list.
        if (this.options.smartLists && i !== l - 1) {
          b = block.bullet.exec(cap[i + 1])[0];
          if (bull !== b && !(bull.length > 1 && b.length > 1)) {
            src = cap.slice(i + 1).join('\n') + src;
            i = l - 1;
          }
        }

        // Determine whether item is loose or not.
        // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
        // for discount behavior.
        loose = next || /\n\n(?!\s*$)/.test(item);
        if (i !== l - 1) {
          next = item.charAt(item.length - 1) === '\n';
          if (!loose) loose = next;
        }

        // Check for task list items
        istask = /^\[[ xX]\] /.test(item);
        ischecked = undefined;
        if (istask) {
          ischecked = item[1] !== ' ';
          item = item.replace(/^\[[ xX]\] +/, '');
        }

        this.tokens.push({
          type: loose
            ? 'loose_item_start'
            : 'list_item_start',
          task: istask,
          checked: ischecked
        });

        // Recurse.
        this.token(item, false);

        this.tokens.push({
          type: 'list_item_end'
        });
      }

      this.tokens.push({
        type: 'list_end'
      });

      continue;
    }

    // html
    if (cap = this.rules.html.exec(src)) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: this.options.sanitize
          ? 'paragraph'
          : 'html',
        pre: !this.options.sanitizer
          && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
        text: cap[0]
      });
      continue;
    }

    // def
    if (top && (cap = this.rules.def.exec(src))) {
      src = src.substring(cap[0].length);
      if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);
      tag = cap[1].toLowerCase().replace(/\s+/g, ' ');
      if (!this.tokens.links[tag]) {
        this.tokens.links[tag] = {
          href: cap[2],
          title: cap[3]
        };
      }
      continue;
    }

    // table (gfm)
    if (top && (cap = this.rules.table.exec(src))) {
      item = {
        type: 'table',
        header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
        align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
        cells: cap[3] ? cap[3].replace(/(?: *\| *)?\n$/, '').split('\n') : []
      };

      if (item.header.length === item.align.length) {
        src = src.substring(cap[0].length);

        for (i = 0; i < item.align.length; i++) {
          if (/^ *-+: *$/.test(item.align[i])) {
            item.align[i] = 'right';
          } else if (/^ *:-+: *$/.test(item.align[i])) {
            item.align[i] = 'center';
          } else if (/^ *:-+ *$/.test(item.align[i])) {
            item.align[i] = 'left';
          } else {
            item.align[i] = null;
          }
        }

        for (i = 0; i < item.cells.length; i++) {
          item.cells[i] = splitCells(
            item.cells[i].replace(/^ *\| *| *\| *$/g, ''),
            item.header.length);
        }

        this.tokens.push(item);

        continue;
      }
    }

    // lheading
    if (cap = this.rules.lheading.exec(src)) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'heading',
        depth: cap[2] === '=' ? 1 : 2,
        text: cap[1]
      });
      continue;
    }

    // top-level paragraph
    if (top && (cap = this.rules.paragraph.exec(src))) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'paragraph',
        text: cap[1].charAt(cap[1].length - 1) === '\n'
          ? cap[1].slice(0, -1)
          : cap[1]
      });
      continue;
    }

    // text
    if (cap = this.rules.text.exec(src)) {
      // Top-level should never reach here.
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'text',
        text: cap[0]
      });
      continue;
    }

    if (src) {
      throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
    }
  }

  return this.tokens;
};

/**
 * Inline-Level Grammar
 */

var inline = {
  escape: /^\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/,
  autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/,
  url: noop,
  tag: '^comment'
    + '|^' // self-closing tag
    + '|^<[a-zA-Z][\\w-]*(?:attribute)*?\\s*/?>' // open tag
    + '|^<\\?[\\s\\S]*?\\?>' // processing instruction, e.g. 
    + '|^' // declaration, e.g. 
    + '|^', // CDATA section
  link: /^!?\[(label)\]\(href(?:\s+(title))?\s*\)/,
  reflink: /^!?\[(label)\]\[(?!\s*\])((?:\\[\[\]]?|[^\[\]\\])+)\]/,
  nolink: /^!?\[(?!\s*\])((?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]])*)\](?:\[\])?/,
  strong: /^__([^\s][\s\S]*?[^\s])__(?!_)|^\*\*([^\s][\s\S]*?[^\s])\*\*(?!\*)|^__([^\s])__(?!_)|^\*\*([^\s])\*\*(?!\*)/,
  em: /^_([^\s][\s\S]*?[^\s_])_(?!_)|^_([^\s_][\s\S]*?[^\s])_(?!_)|^\*([^\s][\s\S]*?[^\s*])\*(?!\*)|^\*([^\s*][\s\S]*?[^\s])\*(?!\*)|^_([^\s_])_(?!_)|^\*([^\s*])\*(?!\*)/,
  code: /^(`+)\s*([\s\S]*?[^`]?)\s*\1(?!`)/,
  br: /^ {2,}\n(?!\s*$)/,
  del: noop,
  text: /^[\s\S]+?(?=[\\?@\[\]\\^_`{|}~])/g;

inline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;
inline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/;
inline.autolink = edit(inline.autolink)
  .replace('scheme', inline._scheme)
  .replace('email', inline._email)
  .getRegex();

inline._attribute = /\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/;

inline.tag = edit(inline.tag)
  .replace('comment', block._comment)
  .replace('attribute', inline._attribute)
  .getRegex();

inline._label = /(?:\[[^\[\]]*\]|\\[\[\]]?|`[^`]*`|[^\[\]\\])*?/;
inline._href = /\s*(<(?:\\[<>]?|[^\s<>\\])*>|(?:\\[()]?|\([^\s\x00-\x1f()\\]*\)|[^\s\x00-\x1f()\\])*?)/;
inline._title = /"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/;

inline.link = edit(inline.link)
  .replace('label', inline._label)
  .replace('href', inline._href)
  .replace('title', inline._title)
  .getRegex();

inline.reflink = edit(inline.reflink)
  .replace('label', inline._label)
  .getRegex();

/**
 * Normal Inline Grammar
 */

inline.normal = merge({}, inline);

/**
 * Pedantic Inline Grammar
 */

inline.pedantic = merge({}, inline.normal, {
  strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
  em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/,
  link: edit(/^!?\[(label)\]\((.*?)\)/)
    .replace('label', inline._label)
    .getRegex(),
  reflink: edit(/^!?\[(label)\]\s*\[([^\]]*)\]/)
    .replace('label', inline._label)
    .getRegex()
});

/**
 * GFM Inline Grammar
 */

inline.gfm = merge({}, inline.normal, {
  escape: edit(inline.escape).replace('])', '~|])').getRegex(),
  url: edit(/^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/)
    .replace('email', inline._email)
    .getRegex(),
  _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
  del: /^~~(?=\S)([\s\S]*?\S)~~/,
  text: edit(inline.text)
    .replace(']|', '~]|')
    .replace('|', '|https?://|ftp://|www\\.|[a-zA-Z0-9.!#$%&\'*+/=?^_`{\\|}~-]+@|')
    .getRegex()
});

/**
 * GFM + Line Breaks Inline Grammar
 */

inline.breaks = merge({}, inline.gfm, {
  br: edit(inline.br).replace('{2,}', '*').getRegex(),
  text: edit(inline.gfm.text).replace('{2,}', '*').getRegex()
});

/**
 * Inline Lexer & Compiler
 */

function InlineLexer(links, options) {
  this.options = options || marked.defaults;
  this.links = links;
  this.rules = inline.normal;
  this.renderer = this.options.renderer || new Renderer();
  this.renderer.options = this.options;

  if (!this.links) {
    throw new Error('Tokens array requires a `links` property.');
  }

  if (this.options.pedantic) {
    this.rules = inline.pedantic;
  } else if (this.options.gfm) {
    if (this.options.breaks) {
      this.rules = inline.breaks;
    } else {
      this.rules = inline.gfm;
    }
  }
}

/**
 * Expose Inline Rules
 */

InlineLexer.rules = inline;

/**
 * Static Lexing/Compiling Method
 */

InlineLexer.output = function(src, links, options) {
  var inline = new InlineLexer(links, options);
  return inline.output(src);
};

/**
 * Lexing/Compiling
 */

InlineLexer.prototype.output = function(src) {
  var out = '',
      link,
      text,
      href,
      title,
      cap;

  while (src) {
    // escape
    if (cap = this.rules.escape.exec(src)) {
      src = src.substring(cap[0].length);
      out += cap[1];
      continue;
    }

    // autolink
    if (cap = this.rules.autolink.exec(src)) {
      src = src.substring(cap[0].length);
      if (cap[2] === '@') {
        text = escape(this.mangle(cap[1]));
        href = 'mailto:' + text;
      } else {
        text = escape(cap[1]);
        href = text;
      }
      out += this.renderer.link(href, null, text);
      continue;
    }

    // url (gfm)
    if (!this.inLink && (cap = this.rules.url.exec(src))) {
      cap[0] = this.rules._backpedal.exec(cap[0])[0];
      src = src.substring(cap[0].length);
      if (cap[2] === '@') {
        text = escape(cap[0]);
        href = 'mailto:' + text;
      } else {
        text = escape(cap[0]);
        if (cap[1] === 'www.') {
          href = 'http://' + text;
        } else {
          href = text;
        }
      }
      out += this.renderer.link(href, null, text);
      continue;
    }

    // tag
    if (cap = this.rules.tag.exec(src)) {
      if (!this.inLink && /^/i.test(cap[0])) {
        this.inLink = false;
      }
      src = src.substring(cap[0].length);
      out += this.options.sanitize
        ? this.options.sanitizer
          ? this.options.sanitizer(cap[0])
          : escape(cap[0])
        : cap[0]
      continue;
    }

    // link
    if (cap = this.rules.link.exec(src)) {
      src = src.substring(cap[0].length);
      this.inLink = true;
      href = cap[2];
      if (this.options.pedantic) {
        link = /^([^'"]*[^\s])\s+(['"])(.*)\2/.exec(href);

        if (link) {
          href = link[1];
          title = link[3];
        } else {
          title = '';
        }
      } else {
        title = cap[3] ? cap[3].slice(1, -1) : '';
      }
      href = href.trim().replace(/^<([\s\S]*)>$/, '$1');
      out += this.outputLink(cap, {
        href: InlineLexer.escapes(href),
        title: InlineLexer.escapes(title)
      });
      this.inLink = false;
      continue;
    }

    // reflink, nolink
    if ((cap = this.rules.reflink.exec(src))
        || (cap = this.rules.nolink.exec(src))) {
      src = src.substring(cap[0].length);
      link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
      link = this.links[link.toLowerCase()];
      if (!link || !link.href) {
        out += cap[0].charAt(0);
        src = cap[0].substring(1) + src;
        continue;
      }
      this.inLink = true;
      out += this.outputLink(cap, link);
      this.inLink = false;
      continue;
    }

    // strong
    if (cap = this.rules.strong.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.strong(this.output(cap[4] || cap[3] || cap[2] || cap[1]));
      continue;
    }

    // em
    if (cap = this.rules.em.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.em(this.output(cap[6] || cap[5] || cap[4] || cap[3] || cap[2] || cap[1]));
      continue;
    }

    // code
    if (cap = this.rules.code.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.codespan(escape(cap[2].trim(), true));
      continue;
    }

    // br
    if (cap = this.rules.br.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.br();
      continue;
    }

    // del (gfm)
    if (cap = this.rules.del.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.del(this.output(cap[1]));
      continue;
    }

    // text
    if (cap = this.rules.text.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.text(escape(this.smartypants(cap[0])));
      continue;
    }

    if (src) {
      throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
    }
  }

  return out;
};

InlineLexer.escapes = function(text) {
  return text ? text.replace(InlineLexer.rules._escapes, '$1') : text;
}

/**
 * Compile Link
 */

InlineLexer.prototype.outputLink = function(cap, link) {
  var href = link.href,
      title = link.title ? escape(link.title) : null;

  return cap[0].charAt(0) !== '!'
    ? this.renderer.link(href, title, this.output(cap[1]))
    : this.renderer.image(href, title, escape(cap[1]));
};

/**
 * Smartypants Transformations
 */

InlineLexer.prototype.smartypants = function(text) {
  if (!this.options.smartypants) return text;
  return text
    // em-dashes
    .replace(/---/g, '\u2014')
    // en-dashes
    .replace(/--/g, '\u2013')
    // opening singles
    .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018')
    // closing singles & apostrophes
    .replace(/'/g, '\u2019')
    // opening doubles
    .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c')
    // closing doubles
    .replace(/"/g, '\u201d')
    // ellipses
    .replace(/\.{3}/g, '\u2026');
};

/**
 * Mangle Links
 */

InlineLexer.prototype.mangle = function(text) {
  if (!this.options.mangle) return text;
  var out = '',
      l = text.length,
      i = 0,
      ch;

  for (; i < l; i++) {
    ch = text.charCodeAt(i);
    if (Math.random() > 0.5) {
      ch = 'x' + ch.toString(16);
    }
    out += '&#' + ch + ';';
  }

  return out;
};

/**
 * Renderer
 */

function Renderer(options) {
  this.options = options || marked.defaults;
}

Renderer.prototype.code = function(code, lang, escaped) {
  if (this.options.highlight) {
    var out = this.options.highlight(code, lang);
    if (out != null && out !== code) {
      escaped = true;
      code = out;
    }
  }

  if (!lang) {
    return '
'
      + (escaped ? code : escape(code, true))
      + '
'; } return '
'
    + (escaped ? code : escape(code, true))
    + '
\n'; }; Renderer.prototype.blockquote = function(quote) { return '
\n' + quote + '
\n'; }; Renderer.prototype.html = function(html) { return html; }; Renderer.prototype.heading = function(text, level, raw) { if (this.options.headerIds) { return '' + text + '\n'; } // ignore IDs return '' + text + '\n'; }; Renderer.prototype.hr = function() { return this.options.xhtml ? '
\n' : '
\n'; }; Renderer.prototype.list = function(body, ordered, start) { var type = ordered ? 'ol' : 'ul', startatt = (ordered && start !== 1) ? (' start="' + start + '"') : ''; return '<' + type + startatt + '>\n' + body + '\n'; }; Renderer.prototype.listitem = function(text) { return '
  • ' + text + '
  • \n'; }; Renderer.prototype.checkbox = function(checked) { return ' '; } Renderer.prototype.paragraph = function(text) { return '

    ' + text + '

    \n'; }; Renderer.prototype.table = function(header, body) { if (body) body = '' + body + ''; return '\n' + '\n' + header + '\n' + body + '
    \n'; }; Renderer.prototype.tablerow = function(content) { return '\n' + content + '\n'; }; Renderer.prototype.tablecell = function(content, flags) { var type = flags.header ? 'th' : 'td'; var tag = flags.align ? '<' + type + ' align="' + flags.align + '">' : '<' + type + '>'; return tag + content + '\n'; }; // span level renderer Renderer.prototype.strong = function(text) { return '' + text + ''; }; Renderer.prototype.em = function(text) { return '' + text + ''; }; Renderer.prototype.codespan = function(text) { return '' + text + ''; }; Renderer.prototype.br = function() { return this.options.xhtml ? '
    ' : '
    '; }; Renderer.prototype.del = function(text) { return '' + text + ''; }; Renderer.prototype.link = function(href, title, text) { if (this.options.sanitize) { try { var prot = decodeURIComponent(unescape(href)) .replace(/[^\w:]/g, '') .toLowerCase(); } catch (e) { return text; } if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) { return text; } } if (this.options.baseUrl && !originIndependentUrl.test(href)) { href = resolveUrl(this.options.baseUrl, href); } try { href = encodeURI(href).replace(/%25/g, '%'); } catch (e) { return text; } var out = '
    '; return out; }; Renderer.prototype.image = function(href, title, text) { if (this.options.baseUrl && !originIndependentUrl.test(href)) { href = resolveUrl(this.options.baseUrl, href); } var out = '' + text + '' : '>'; return out; }; Renderer.prototype.text = function(text) { return text; }; /** * TextRenderer * returns only the textual part of the token */ function TextRenderer() {} // no need for block level renderers TextRenderer.prototype.strong = TextRenderer.prototype.em = TextRenderer.prototype.codespan = TextRenderer.prototype.del = TextRenderer.prototype.text = function (text) { return text; } TextRenderer.prototype.link = TextRenderer.prototype.image = function(href, title, text) { return '' + text; } TextRenderer.prototype.br = function() { return ''; } /** * Parsing & Compiling */ function Parser(options) { this.tokens = []; this.token = null; this.options = options || marked.defaults; this.options.renderer = this.options.renderer || new Renderer(); this.renderer = this.options.renderer; this.renderer.options = this.options; } /** * Static Parse Method */ Parser.parse = function(src, options) { var parser = new Parser(options); return parser.parse(src); }; /** * Parse Loop */ Parser.prototype.parse = function(src) { this.inline = new InlineLexer(src.links, this.options); // use an InlineLexer with a TextRenderer to extract pure text this.inlineText = new InlineLexer( src.links, merge({}, this.options, {renderer: new TextRenderer()}) ); this.tokens = src.reverse(); var out = ''; while (this.next()) { out += this.tok(); } return out; }; /** * Next Token */ Parser.prototype.next = function() { return this.token = this.tokens.pop(); }; /** * Preview Next Token */ Parser.prototype.peek = function() { return this.tokens[this.tokens.length - 1] || 0; }; /** * Parse Text Tokens */ Parser.prototype.parseText = function() { var body = this.token.text; while (this.peek().type === 'text') { body += '\n' + this.next().text; } return this.inline.output(body); }; /** * Parse Current Token */ Parser.prototype.tok = function() { switch (this.token.type) { case 'space': { return ''; } case 'hr': { return this.renderer.hr(); } case 'heading': { return this.renderer.heading( this.inline.output(this.token.text), this.token.depth, unescape(this.inlineText.output(this.token.text))); } case 'code': { return this.renderer.code(this.token.text, this.token.lang, this.token.escaped); } case 'table': { var header = '', body = '', i, row, cell, j; // header cell = ''; for (i = 0; i < this.token.header.length; i++) { cell += this.renderer.tablecell( this.inline.output(this.token.header[i]), { header: true, align: this.token.align[i] } ); } header += this.renderer.tablerow(cell); for (i = 0; i < this.token.cells.length; i++) { row = this.token.cells[i]; cell = ''; for (j = 0; j < row.length; j++) { cell += this.renderer.tablecell( this.inline.output(row[j]), { header: false, align: this.token.align[j] } ); } body += this.renderer.tablerow(cell); } return this.renderer.table(header, body); } case 'blockquote_start': { body = ''; while (this.next().type !== 'blockquote_end') { body += this.tok(); } return this.renderer.blockquote(body); } case 'list_start': { body = ''; var ordered = this.token.ordered, start = this.token.start; while (this.next().type !== 'list_end') { body += this.tok(); } return this.renderer.list(body, ordered, start); } case 'list_item_start': { body = ''; if (this.token.task) { body += this.renderer.checkbox(this.token.checked); } while (this.next().type !== 'list_item_end') { body += this.token.type === 'text' ? this.parseText() : this.tok(); } return this.renderer.listitem(body); } case 'loose_item_start': { body = ''; while (this.next().type !== 'list_item_end') { body += this.tok(); } return this.renderer.listitem(body); } case 'html': { // TODO parse inline content if parameter markdown=1 return this.renderer.html(this.token.text); } case 'paragraph': { return this.renderer.paragraph(this.inline.output(this.token.text)); } case 'text': { return this.renderer.paragraph(this.parseText()); } } }; /** * Helpers */ function escape(html, encode) { return html .replace(!encode ? /&(?!#?\w+;)/g : /&/g, '&') .replace(//g, '>') .replace(/"/g, '"') .replace(/'/g, '''); } function unescape(html) { // explicitly match decimal, hex, and named HTML entities return html.replace(/&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/ig, function(_, n) { n = n.toLowerCase(); if (n === 'colon') return ':'; if (n.charAt(0) === '#') { return n.charAt(1) === 'x' ? String.fromCharCode(parseInt(n.substring(2), 16)) : String.fromCharCode(+n.substring(1)); } return ''; }); } function edit(regex, opt) { regex = regex.source || regex; opt = opt || ''; return { replace: function(name, val) { val = val.source || val; val = val.replace(/(^|[^\[])\^/g, '$1'); regex = regex.replace(name, val); return this; }, getRegex: function() { return new RegExp(regex, opt); } }; } function resolveUrl(base, href) { if (!baseUrls[' ' + base]) { // we can ignore everything in base after the last slash of its path component, // but we might need to add _that_ // https://tools.ietf.org/html/rfc3986#section-3 if (/^[^:]+:\/*[^/]*$/.test(base)) { baseUrls[' ' + base] = base + '/'; } else { baseUrls[' ' + base] = rtrim(base, '/', true); } } base = baseUrls[' ' + base]; if (href.slice(0, 2) === '//') { return base.replace(/:[\s\S]*/, ':') + href; } else if (href.charAt(0) === '/') { return base.replace(/(:\/*[^/]*)[\s\S]*/, '$1') + href; } else { return base + href; } } var baseUrls = {}; var originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i; function noop() {} noop.exec = noop; function merge(obj) { var i = 1, target, key; for (; i < arguments.length; i++) { target = arguments[i]; for (key in target) { if (Object.prototype.hasOwnProperty.call(target, key)) { obj[key] = target[key]; } } } return obj; } function splitCells(tableRow, count) { // ensure that every cell-delimiting pipe has a space // before it to distinguish it from an escaped pipe var row = tableRow.replace(/\|/g, function (match, offset, str) { var escaped = false, curr = offset; while (--curr >= 0 && str[curr] === '\\') escaped = !escaped; if (escaped) { // odd number of slashes means | is escaped // so we leave it alone return '|'; } else { // add space before unescaped | return ' |'; } }), cells = row.split(/ \|/), i = 0; if (cells.length > count) { cells.splice(count); } else { while (cells.length < count) cells.push(''); } for (; i < cells.length; i++) { // leading or trailing whitespace is ignored per the gfm spec cells[i] = cells[i].trim().replace(/\\\|/g, '|'); } return cells; } // Remove trailing 'c's. Equivalent to str.replace(/c*$/, ''). // /c*$/ is vulnerable to REDOS. // invert: Remove suffix of non-c chars instead. Default falsey. function rtrim(str, c, invert) { if (str.length === 0) { return ''; } // Length of suffix matching the invert condition. var suffLen = 0; // Step left until we fail to match the invert condition. while (suffLen < str.length) { var currChar = str.charAt(str.length - suffLen - 1); if (currChar === c && !invert) { suffLen++; } else if (currChar !== c && invert) { suffLen++; } else { break; } } return str.substr(0, str.length - suffLen); } /** * Marked */ function marked(src, opt, callback) { // throw error in case of non string input if (typeof src === 'undefined' || src === null) { throw new Error('marked(): input parameter is undefined or null'); } if (typeof src !== 'string') { throw new Error('marked(): input parameter is of type ' + Object.prototype.toString.call(src) + ', string expected'); } if (callback || typeof opt === 'function') { if (!callback) { callback = opt; opt = null; } opt = merge({}, marked.defaults, opt || {}); var highlight = opt.highlight, tokens, pending, i = 0; try { tokens = Lexer.lex(src, opt) } catch (e) { return callback(e); } pending = tokens.length; var done = function(err) { if (err) { opt.highlight = highlight; return callback(err); } var out; try { out = Parser.parse(tokens, opt); } catch (e) { err = e; } opt.highlight = highlight; return err ? callback(err) : callback(null, out); }; if (!highlight || highlight.length < 3) { return done(); } delete opt.highlight; if (!pending) return done(); for (; i < tokens.length; i++) { (function(token) { if (token.type !== 'code') { return --pending || done(); } return highlight(token.text, token.lang, function(err, code) { if (err) return done(err); if (code == null || code === token.text) { return --pending || done(); } token.text = code; token.escaped = true; --pending || done(); }); })(tokens[i]); } return; } try { if (opt) opt = merge({}, marked.defaults, opt); return Parser.parse(Lexer.lex(src, opt), opt); } catch (e) { e.message += '\nPlease report this to https://github.com/markedjs/marked.'; if ((opt || marked.defaults).silent) { return '

    An error occurred:

    '
            + escape(e.message + '', true)
            + '
    '; } throw e; } } /** * Options */ marked.options = marked.setOptions = function(opt) { merge(marked.defaults, opt); return marked; }; marked.getDefaults = function () { return { baseUrl: null, breaks: false, gfm: true, headerIds: true, headerPrefix: '', highlight: null, langPrefix: 'language-', mangle: true, pedantic: false, renderer: new Renderer(), sanitize: false, sanitizer: null, silent: false, smartLists: false, smartypants: false, tables: true, xhtml: false }; } marked.defaults = marked.getDefaults(); /** * Expose */ marked.Parser = Parser; marked.parser = Parser.parse; marked.Renderer = Renderer; marked.TextRenderer = TextRenderer; marked.Lexer = Lexer; marked.lexer = Lexer.lex; marked.InlineLexer = InlineLexer; marked.inlineLexer = InlineLexer.output; marked.parse = marked; if (typeof module !== 'undefined' && typeof exports === 'object') { module.exports = marked; } else if (typeof define === 'function' && define.amd) { define(function() { return marked; }); } else { root.marked = marked; } })(this || (typeof window !== 'undefined' ? window : global));




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