Qt 5.11 | Qt WebEngine | WebEngine Markdown Editor Example | marked.js Example File

Qt 5.11.3 Reference Documentation

# marked.js Example File

webenginewidgets/markdowneditor/resources/3rdparty/marked.js

      /**
       * 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]*?(?:</\\1>[^\\n]*\\n+|$)' // (1)
          + '|comment[^\\n]*(\\n+|$)' // (2)
          + '|<\\?[\\s\\S]*?\\?>\\n*' // (3)
          + '|<![A-Z][\\s\\S]*?>\\n*' // (4)
          + '|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>\\n*' // (5)
          + '|</?(tag)(?: +|\\n|/?>)[\\s\\S]*?(?:\\n{2,}|$)' // (6)
          + '|<(?!script|pre|style)([a-z][\\w-]*)(?:attribute)*? */?>(?=\\h*\\n)[\\s\\S]*?(?:\\n{2,}|$)' // (7) open tag
          + '|</(?!script|pre|style)[a-z][\\w-]*\\s*>(?=\\h*\\n)[\\s\\S]*?(?:\\n{2,}|$)' // (7) closing tag
          + ')',
        def: /^ {0,3}\[(label)\]: *\n? *<?([^\s>]+)>?(?:(?: +\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 = /<!--(?!-?>)[\s\S]*?-->/;
      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*$)'
          + '|<(tag)[\\s\\S]+?</\\1> *(?:\\n{2,}|\\s*$)' // closed tag
          + '|<tag(?:"[^"]*"|\'[^\']*\'|\\s[^\'"/>\\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: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +(["(][^\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
                ? cap.replace(/\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'
          + '|^</[a-zA-Z][\\w:-]*\\s*>' // self-closing tag
          + '|^<[a-zA-Z][\\w-]*(?:attribute)*?\\s*/?>' // open tag
          + '|^<\\?[\\s\\S]*?\\?>' // processing instruction, e.g. <?php ?>
          + '|^<![a-zA-Z]+\\s[\\s\\S]*?>' // declaration, e.g. <!DOCTYPE html>
          + '|^<!\\[CDATA\\[[\\s\\S]*?\\]\\]>', // 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]+?(?=[\\<!\[`*]|\b_| {2,}\n|$)/
      };

      inline._escapes = /\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/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 && /^<a /i.test(cap[0])) {
              this.inLink = true;
            } else if (this.inLink && /^<\/a>/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 '<pre><code>'
            + (escaped ? code : escape(code, true))
            + '</code></pre>';
        }

        return '<pre><code class="'
          + this.options.langPrefix
          + escape(lang, true)
          + '">'
          + (escaped ? code : escape(code, true))
          + '</code></pre>\n';
      };

      Renderer.prototype.blockquote = function(quote) {
        return '<blockquote>\n' + quote + '</blockquote>\n';
      };

      Renderer.prototype.html = function(html) {
        return html;
      };

      Renderer.prototype.heading = function(text, level, raw) {
        if (this.options.headerIds) {
          return '<h'
            + level
            + ' id="'
            + this.options.headerPrefix
            + raw.toLowerCase().replace(/[^\w]+/g, '-')
            + '">'
            + text
            + '</h'
            + level
            + '>\n';
        }
        // ignore IDs
        return '<h' + level + '>' + text + '</h' + level + '>\n';
      };

      Renderer.prototype.hr = function() {
        return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
      };

      Renderer.prototype.list = function(body, ordered, start) {
        var type = ordered ? 'ol' : 'ul',
            startatt = (ordered && start !== 1) ? (' start="' + start + '"') : '';
        return '<' + type + startatt + '>\n' + body + '</' + type + '>\n';
      };

      Renderer.prototype.listitem = function(text) {
        return '<li>' + text + '</li>\n';
      };

      Renderer.prototype.checkbox = function(checked) {
        return '<input '
          + (checked ? 'checked="" ' : '')
          + 'disabled="" type="checkbox"'
          + (this.options.xhtml ? ' /' : '')
          + '> ';
      }

      Renderer.prototype.paragraph = function(text) {
        return '<p>' + text + '</p>\n';
      };

      Renderer.prototype.table = function(header, body) {
        if (body) body = '<tbody>' + body + '</tbody>';

        return '<table>\n'
          + '<thead>\n'
          + header
          + '</thead>\n'
          + body
          + '</table>\n';
      };

      Renderer.prototype.tablerow = function(content) {
        return '<tr>\n' + content + '</tr>\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 + '</' + type + '>\n';
      };

      // span level renderer
      Renderer.prototype.strong = function(text) {
        return '<strong>' + text + '</strong>';
      };

      Renderer.prototype.em = function(text) {
        return '<em>' + text + '</em>';
      };

      Renderer.prototype.codespan = function(text) {
        return '<code>' + text + '</code>';
      };

      Renderer.prototype.br = function() {
        return this.options.xhtml ? '<br/>' : '<br>';
      };

      Renderer.prototype.del = function(text) {
        return '<del>' + text + '</del>';
      };

      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 = '<a href="' + escape(href) + '"';
        if (title) {
          out += ' title="' + title + '"';
        }
        out += '>' + text + '</a>';
        return out;
      };

      Renderer.prototype.image = function(href, title, text) {
        if (this.options.baseUrl && !originIndependentUrl.test(href)) {
          href = resolveUrl(this.options.baseUrl, href);
        }
        var out = '<img src="' + href + '" alt="' + text + '"';
        if (title) {
          out += ' title="' + title + '"';
        }
        out += this.options.xhtml ? '/>' : '>';
        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, '&amp;')
          .replace(/</g, '&lt;')
          .replace(/>/g, '&gt;')
          .replace(/"/g, '&quot;')
          .replace(/'/g, '&#39;');
      }

      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 (/^[^:]+:\/*[^/]*$/.test(base)) {
            baseUrls[' ' + base] = base + '/';
          } else {
            baseUrls[' ' + base] = base.replace(/[^/]*$/, '');
          }
        }
        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) {
        var cells = tableRow.replace(/([^\\])\|/g, '$1 |').split(/ +\| */),
            i = 0;

        if (cells.length > count) {
          cells.splice(count);
        } else {
          while (cells.length < count) cells.push('');
        }

        for (; i < cells.length; i++) {
          cells[i] = cells[i].replace(/\\\|/g, '|');
        }
        return cells;
      }

      /**
       * 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 '<p>An error occurred:</p><pre>'
              + escape(e.message + '', true)
              + '</pre>';
          }
          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));