presentations/reveal/plugin/markdown/marked.js

/**
 * marked - a markdown parser
 * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed)
 * https://github.com/chjj/marked
 */
(function() {
  var block = {
    newline: /^\n+/,
    code: /^( {4}[^\n]+\n*)+/,
    fences: noop,
    hr: /^( *[-*_]){3,} *(?:\n+|$)/,
    heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,
    nptable: noop,
    lheading: /^([^\n]+)\n *(=|-){2,} *(?:\n+|$)/,
    blockquote: /^( *>[^\n]+(\n(?!def)[^\n]+)*\n*)+/,
    list: /^( *)(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
    html: /^ *(?:comment *(?:\n|\s*$)|closed *(?:\n{2,}|\s*$)|closing *(?:\n{2,}|\s*$))/,
    def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +["(]([^\n]+)[")])? *(?:\n+|$)/,
    table: noop,
    paragraph: /^((?:[^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+)\n*/,
    text: /^[^\n]+/
  };
  block.bullet = /(?:[*+-]|\d+\.)/;
  block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;
  block.item = replace(block.item, "gm")(/bull/g, block.bullet)();
  block.list = replace(block.list)(/bull/g, block.bullet)(
    "hr",
    "\\n+(?=\\1?(?:[-*_] *){3,}(?:\\n+|$))"
  )("def", "\\n+(?=" + block.def.source + ")")();
  block.blockquote = replace(block.blockquote)("def", block.def)();
  block._tag =
    "(?!(?:" +
    "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";
  block.html = replace(block.html)("comment", /<!--[\s\S]*?-->/)(
    "closed",
    /<(tag)[\s\S]+?<\/\1>/
  )("closing", /<tag(?:"[^"]*"|'[^']*'|[^'">])*?>/)(/tag/g, block._tag)();
  block.paragraph = replace(block.paragraph)("hr", block.hr)(
    "heading",
    block.heading
  )("lheading", block.lheading)("blockquote", block.blockquote)(
    "tag",
    "<" + block._tag
  )("def", block.def)();
  block.normal = merge({}, block);
  block.gfm = merge({}, block.normal, {
    fences: /^ *(`{3,}|~{3,})[ \.]*(\S+)? *\n([\s\S]*?)\s*\1 *(?:\n+|$)/,
    paragraph: /^/,
    heading: /^ *(#{1,6}) +([^\n]+?) *#* *(?:\n+|$)/
  });
  block.gfm.paragraph = replace(block.paragraph)(
    "(?!",
    "(?!" +
      block.gfm.fences.source.replace("\\1", "\\2") +
      "|" +
      block.list.source.replace("\\1", "\\3") +
      "|"
  )();
  block.tables = merge({}, block.gfm, {
    nptable: /^ *(\S.*\|.*)\n *([-:]+ *\|[-| :]*)\n((?:.*\|.*(?:\n|$))*)\n*/,
    table: /^ *\|(.+)\n *\|( *[-:]+[-| :]*)\n((?: *\|.*(?:\n|$))*)\n*/
  });
  function Lexer(options) {
    this.tokens = [];
    this.tokens.links = {};
    this.options = options || marked.defaults;
    this.rules = block.normal;
    if (this.options.gfm) {
      if (this.options.tables) {
        this.rules = block.tables;
      } else {
        this.rules = block.gfm;
      }
    }
  }
  Lexer.rules = block;
  Lexer.lex = function(src, options) {
    var lexer = new Lexer(options);
    return lexer.lex(src);
  };
  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);
  };
  Lexer.prototype.token = function(src, top, bq) {
    var src = src.replace(/^ +$/gm, ""),
      next,
      loose,
      cap,
      bull,
      b,
      item,
      space,
      i,
      l;
    while (src) {
      if ((cap = this.rules.newline.exec(src))) {
        src = src.substring(cap[0].length);
        if (cap[0].length > 1) {
          this.tokens.push({ type: "space" });
        }
      }
      if ((cap = this.rules.code.exec(src))) {
        src = src.substring(cap[0].length);
        cap = cap[0].replace(/^ {4}/gm, "");
        this.tokens.push({
          type: "code",
          text: !this.options.pedantic ? cap.replace(/\n+$/, "") : cap
        });
        continue;
      }
      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;
      }
      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;
      }
      if (top && (cap = this.rules.nptable.exec(src))) {
        src = src.substring(cap[0].length);
        item = {
          type: "table",
          header: cap[1].replace(/^ *| *\| *$/g, "").split(/ *\| */),
          align: cap[2].replace(/^ *|\| *$/g, "").split(/ *\| */),
          cells: cap[3].replace(/\n$/, "").split("\n")
        };
        for (i = 0; i < item.align.length; i++) {
          if (/^ *-+: *$/.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] = item.cells[i].split(/ *\| */);
        }
        this.tokens.push(item);
        continue;
      }
      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;
      }
      if ((cap = this.rules.hr.exec(src))) {
        src = src.substring(cap[0].length);
        this.tokens.push({ type: "hr" });
        continue;
      }
      if ((cap = this.rules.blockquote.exec(src))) {
        src = src.substring(cap[0].length);
        this.tokens.push({ type: "blockquote_start" });
        cap = cap[0].replace(/^ *> ?/gm, "");
        this.token(cap, top, true);
        this.tokens.push({ type: "blockquote_end" });
        continue;
      }
      if ((cap = this.rules.list.exec(src))) {
        src = src.substring(cap[0].length);
        bull = cap[2];
        this.tokens.push({ type: "list_start", ordered: bull.length > 1 });
        cap = cap[0].match(this.rules.item);
        next = false;
        l = cap.length;
        i = 0;
        for (; i < l; i++) {
          item = cap[i];
          space = item.length;
          item = item.replace(/^ *([*+-]|\d+\.) +/, "");
          if (~item.indexOf("\n ")) {
            space -= item.length;
            item = !this.options.pedantic
              ? item.replace(new RegExp("^ {1," + space + "}", "gm"), "")
              : item.replace(/^ {1,4}/gm, "");
          }
          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;
            }
          }
          loose = next || /\n\n(?!\s*$)/.test(item);
          if (i !== l - 1) {
            next = item.charAt(item.length - 1) === "\n";
            if (!loose) loose = next;
          }
          this.tokens.push({
            type: loose ? "loose_item_start" : "list_item_start"
          });
          this.token(item, false, bq);
          this.tokens.push({ type: "list_item_end" });
        }
        this.tokens.push({ type: "list_end" });
        continue;
      }
      if ((cap = this.rules.html.exec(src))) {
        src = src.substring(cap[0].length);
        this.tokens.push({
          type: this.options.sanitize ? "paragraph" : "html",
          pre:
            !this.options.sanitizer &&
            (cap[1] === "pre" || cap[1] === "script" || cap[1] === "style"),
          text: cap[0]
        });
        continue;
      }
      if (!bq && top && (cap = this.rules.def.exec(src))) {
        src = src.substring(cap[0].length);
        this.tokens.links[cap[1].toLowerCase()] = {
          href: cap[2],
          title: cap[3]
        };
        continue;
      }
      if (top && (cap = this.rules.table.exec(src))) {
        src = src.substring(cap[0].length);
        item = {
          type: "table",
          header: cap[1].replace(/^ *| *\| *$/g, "").split(/ *\| */),
          align: cap[2].replace(/^ *|\| *$/g, "").split(/ *\| */),
          cells: cap[3].replace(/(?: *\| *)?\n$/, "").split("\n")
        };
        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 (/^ *:-+ *$/.test(item.align[i])) {
            item.align[i] = "left";
          } else {
            item.align[i] = null;
          }
        }
        for (i = 0; i < item.cells.length; i++) {
          item.cells[i] = item.cells[i]
            .replace(/^ *\| *| *\| *$/g, "")
            .split(/ *\| */);
        }
        this.tokens.push(item);
        continue;
      }
      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;
      }
      if ((cap = this.rules.text.exec(src))) {
        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;
  };
  var inline = {
    escape: /^\\([\\`*{}\[\]()#+\-.!_>])/,
    autolink: /^<([^ >]+(@|:\/)[^ >]+)>/,
    url: noop,
    tag: /^<!--[\s\S]*?-->|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/,
    link: /^!?\[(inside)\]\(href\)/,
    reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
    nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
    strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/,
    em: /^\b_((?:[^_]|__)+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/,
    code: /^(`+)\s*([\s\S]*?[^`])\s*\1(?!`)/,
    br: /^ {2,}\n(?!\s*$)/,
    del: noop,
    text: /^[\s\S]+?(?=[\\<!\[_*`]| {2,}\n|$)/
  };
  inline._inside = /(?:\[[^\]]*\]|[^\[\]]|\](?=[^\[]*\]))*/;
  inline._href = /\s*<?([\s\S]*?)>?(?:\s+['"]([\s\S]*?)['"])?\s*/;
  inline.link = replace(inline.link)("inside", inline._inside)(
    "href",
    inline._href
  )();
  inline.reflink = replace(inline.reflink)("inside", inline._inside)();
  inline.normal = merge({}, inline);
  inline.pedantic = merge({}, inline.normal, {
    strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
    em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/
  });
  inline.gfm = merge({}, inline.normal, {
    escape: replace(inline.escape)("])", "~|])")(),
    url: /^(https?:\/\/[^\s<]+[^<.,:;"')\]\s])/,
    del: /^~~(?=\S)([\s\S]*?\S)~~/,
    text: replace(inline.text)("]|", "~]|")("|", "|https?://|")()
  });
  inline.breaks = merge({}, inline.gfm, {
    br: replace(inline.br)("{2,}", "*")(),
    text: replace(inline.gfm.text)("{2,}", "*")()
  });
  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.gfm) {
      if (this.options.breaks) {
        this.rules = inline.breaks;
      } else {
        this.rules = inline.gfm;
      }
    } else if (this.options.pedantic) {
      this.rules = inline.pedantic;
    }
  }
  InlineLexer.rules = inline;
  InlineLexer.output = function(src, links, options) {
    var inline = new InlineLexer(links, options);
    return inline.output(src);
  };
  InlineLexer.prototype.output = function(src) {
    var out = "",
      link,
      text,
      href,
      cap;
    while (src) {
      if ((cap = this.rules.escape.exec(src))) {
        src = src.substring(cap[0].length);
        out += cap[1];
        continue;
      }
      if ((cap = this.rules.autolink.exec(src))) {
        src = src.substring(cap[0].length);
        if (cap[2] === "@") {
          text =
            cap[1].charAt(6) === ":"
              ? this.mangle(cap[1].substring(7))
              : this.mangle(cap[1]);
          href = this.mangle("mailto:") + text;
        } else {
          text = escape(cap[1]);
          href = text;
        }
        out += this.renderer.link(href, null, text);
        continue;
      }
      if (!this.inLink && (cap = this.rules.url.exec(src))) {
        src = src.substring(cap[0].length);
        text = escape(cap[1]);
        href = text;
        out += this.renderer.link(href, null, text);
        continue;
      }
      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;
      }
      if ((cap = this.rules.link.exec(src))) {
        src = src.substring(cap[0].length);
        this.inLink = true;
        out += this.outputLink(cap, { href: cap[2], title: cap[3] });
        this.inLink = false;
        continue;
      }
      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;
      }
      if ((cap = this.rules.strong.exec(src))) {
        src = src.substring(cap[0].length);
        out += this.renderer.strong(this.output(cap[2] || cap[1]));
        continue;
      }
      if ((cap = this.rules.em.exec(src))) {
        src = src.substring(cap[0].length);
        out += this.renderer.em(this.output(cap[2] || cap[1]));
        continue;
      }
      if ((cap = this.rules.code.exec(src))) {
        src = src.substring(cap[0].length);
        out += this.renderer.codespan(escape(cap[2], true));
        continue;
      }
      if ((cap = this.rules.br.exec(src))) {
        src = src.substring(cap[0].length);
        out += this.renderer.br();
        continue;
      }
      if ((cap = this.rules.del.exec(src))) {
        src = src.substring(cap[0].length);
        out += this.renderer.del(this.output(cap[1]));
        continue;
      }
      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.prototype.outputLink = function(cap, link) {
    var href = escape(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]));
  };
  InlineLexer.prototype.smartypants = function(text) {
    if (!this.options.smartypants) return text;
    return text
      .replace(/---/g, "—")
      .replace(/--/g, "–")
      .replace(/(^|[-\u2014/(\[{"\s])'/g, "$1‘")
      .replace(/'/g, "’")
      .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, "$1“")
      .replace(/"/g, "”")
      .replace(/\.{3}/g, "…");
  };
  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;
  };
  function Renderer(options) {
    this.options = options || {};
  }
  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)) +
        "\n</code></pre>"
      );
    }
    return (
      '<pre><code class="' +
      this.options.langPrefix +
      escape(lang, true) +
      '">' +
      (escaped ? code : escape(code, true)) +
      "\n</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) {
    return (
      "<h" +
      level +
      ' id="' +
      this.options.headerPrefix +
      raw.toLowerCase().replace(/[^\w]+/g, "-") +
      '">' +
      text +
      "</h" +
      level +
      ">\n"
    );
  };
  Renderer.prototype.hr = function() {
    return this.options.xhtml ? "<hr/>\n" : "<hr>\n";
  };
  Renderer.prototype.list = function(body, ordered) {
    var type = ordered ? "ol" : "ul";
    return "<" + type + ">\n" + body + "</" + type + ">\n";
  };
  Renderer.prototype.listitem = function(text) {
    return "<li>" + text + "</li>\n";
  };
  Renderer.prototype.paragraph = function(text) {
    return "<p>" + text + "</p>\n";
  };
  Renderer.prototype.table = function(header, body) {
    return (
      "<table>\n" +
      "<thead>\n" +
      header +
      "</thead>\n" +
      "<tbody>\n" +
      body +
      "</tbody>\n" +
      "</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 + ' style="text-align:' + flags.align + '">'
      : "<" + type + ">";
    return tag + content + "</" + type + ">\n";
  };
  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 "";
      }
      if (
        prot.indexOf("javascript:") === 0 ||
        prot.indexOf("vbscript:") === 0
      ) {
        return "";
      }
    }
    var out = '<a href="' + href + '"';
    if (title) {
      out += ' title="' + title + '"';
    }
    out += ">" + text + "</a>";
    return out;
  };
  Renderer.prototype.image = function(href, title, text) {
    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;
  };
  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;
  }
  Parser.parse = function(src, options, renderer) {
    var parser = new Parser(options, renderer);
    return parser.parse(src);
  };
  Parser.prototype.parse = function(src) {
    this.inline = new InlineLexer(src.links, this.options, this.renderer);
    this.tokens = src.reverse();
    var out = "";
    while (this.next()) {
      out += this.tok();
    }
    return out;
  };
  Parser.prototype.next = function() {
    return (this.token = this.tokens.pop());
  };
  Parser.prototype.peek = function() {
    return this.tokens[this.tokens.length - 1] || 0;
  };
  Parser.prototype.parseText = function() {
    var body = this.token.text;
    while (this.peek().type === "text") {
      body += "\n" + this.next().text;
    }
    return this.inline.output(body);
  };
  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,
          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,
          flags,
          j;
        cell = "";
        for (i = 0; i < this.token.header.length; i++) {
          flags = { header: true, align: this.token.align[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": {
        var body = "";
        while (this.next().type !== "blockquote_end") {
          body += this.tok();
        }
        return this.renderer.blockquote(body);
      }
      case "list_start": {
        var body = "",
          ordered = this.token.ordered;
        while (this.next().type !== "list_end") {
          body += this.tok();
        }
        return this.renderer.list(body, ordered);
      }
      case "list_item_start": {
        var body = "";
        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": {
        var body = "";
        while (this.next().type !== "list_item_end") {
          body += this.tok();
        }
        return this.renderer.listitem(body);
      }
      case "html": {
        var html =
          !this.token.pre && !this.options.pedantic
            ? this.inline.output(this.token.text)
            : this.token.text;
        return this.renderer.html(html);
      }
      case "paragraph": {
        return this.renderer.paragraph(this.inline.output(this.token.text));
      }
      case "text": {
        return this.renderer.paragraph(this.parseText());
      }
    }
  };
  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) {
    return html.replace(/&([#\w]+);/g, 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 replace(regex, opt) {
    regex = regex.source;
    opt = opt || "";
    return function self(name, val) {
      if (!name) return new RegExp(regex, opt);
      val = val.source || val;
      val = val.replace(/(^|[^\[])\^/g, "$1");
      regex = regex.replace(name, val);
      return self;
    };
  }
  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 marked(src, opt, callback) {
    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/chjj/marked.";
      if ((opt || marked.defaults).silent) {
        return (
          "<p>An error occured:</p><pre>" +
          escape(e.message + "", true) +
          "</pre>"
        );
      }
      throw e;
    }
  }
  marked.options = marked.setOptions = function(opt) {
    merge(marked.defaults, opt);
    return marked;
  };
  marked.defaults = {
    gfm: true,
    tables: true,
    breaks: false,
    pedantic: false,
    sanitize: false,
    sanitizer: null,
    mangle: true,
    smartLists: false,
    silent: false,
    highlight: null,
    langPrefix: "lang-",
    smartypants: false,
    headerPrefix: "",
    renderer: new Renderer(),
    xhtml: false
  };
  marked.Parser = Parser;
  marked.parser = Parser.parse;
  marked.Renderer = Renderer;
  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 {
    this.marked = marked;
  }
}.call(
  (function() {
    return this || (typeof window !== "undefined" ? window : global);
  })()
));