Update marked

js/vendor/marked.js

@@ -1,6 +1,6 @@
 /**
  * marked - a markdown parser
- * Copyright (c) 2011-2013, Christopher Jeffrey. (MIT Licensed)
+ * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed)
  * https://github.com/chjj/marked
  */
 
@@ -18,9 +18,9 @@ var block = {
   heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,
   nptable: noop,
   lheading: /^([^\n]+)\n *(=|-){2,} *(?:\n+|$)/,
-  blockquote: /^( *>[^\n]+(\n[^\n]+)*\n*)+/,
-  list: /^( *)(bull) [\s\S]+?(?:hr|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
-  html: /^ *(?:comment|closed|closing) *(?:\n{2,}|\s*$)/,
+  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*/,
@@ -35,13 +35,18 @@ block.item = replace(block.item, 'gm')
 
 block.list = replace(block.list)
   (/bull/g, block.bullet)
-  ('hr', /\n+(?=(?: *[-*_]){3,} *(?:\n+|$))/)
+  ('hr', '\\n+(?=\\1?(?:[-*_] *){3,}(?:\\n+|$))')
+  ('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+(?!:/|@)\\b';
+  + '|span|br|wbr|ins|del|img)\\b)\\w+(?!:/|[^\\w\\s@]*@)\\b';
 
 block.html = replace(block.html)
   ('comment', /<!--[\s\S]*?-->/)
@@ -70,8 +75,9 @@ block.normal = merge({}, block);
  */
 
 block.gfm = merge({}, block.normal, {
-  fences: /^ *(`{3,}|~{3,}) *(\S+)? *\n([\s\S]+?)\s*\1 *(?:\n+|$)/,
-  paragraph: /^/
+  fences: /^ *(`{3,}|~{3,})[ \.]*(\S+)? *\n([\s\S]*?)\s*\1 *(?:\n+|$)/,
+  paragraph: /^/,
+  heading: /^ *(#{1,6}) +([^\n]+?) *#* *(?:\n+|$)/
 });
 
 block.gfm.paragraph = replace(block.paragraph)
@@ -141,7 +147,7 @@ Lexer.prototype.lex = function(src) {
  * Lexing
  */
 
-Lexer.prototype.token = function(src, top) {
+Lexer.prototype.token = function(src, top, bq) {
   var src = src.replace(/^ +$/gm, '')
     , next
     , loose
@@ -183,7 +189,7 @@ Lexer.prototype.token = function(src, top) {
       this.tokens.push({
         type: 'code',
         lang: cap[2],
-        text: cap[3]
+        text: cap[3] || ''
       });
       continue;
     }
@@ -264,7 +270,7 @@ Lexer.prototype.token = function(src, top) {
       // Pass `top` to keep the current
       // "toplevel" state. This is exactly
       // how markdown.pl works.
-      this.token(cap, top);
+      this.token(cap, top, true);
 
       this.tokens.push({
         type: 'blockquote_end'
@@ -333,7 +339,7 @@ Lexer.prototype.token = function(src, top) {
         });
 
         // Recurse.
-        this.token(item, false);
+        this.token(item, false, bq);
 
         this.tokens.push({
           type: 'list_item_end'
@@ -354,14 +360,15 @@ Lexer.prototype.token = function(src, top) {
         type: this.options.sanitize
           ? 'paragraph'
           : 'html',
-        pre: cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style',
+        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))) {
+    if ((!bq && top) && (cap = this.rules.def.exec(src))) {
       src = src.substring(cap[0].length);
       this.tokens.links[cap[1].toLowerCase()] = {
         href: cap[2],
@@ -449,7 +456,7 @@ var inline = {
   reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
   nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
   strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/,
-  em: /^\b_((?:__|[\s\S])+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/,
+  em: /^\b_((?:[^_]|__)+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/,
   code: /^(`+)\s*([\s\S]*?[^`])\s*\1(?!`)/,
   br: /^ {2,}\n(?!\s*$)/,
   del: noop,
@@ -514,6 +521,8 @@ 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
@@ -577,43 +586,44 @@ InlineLexer.prototype.output = function(src) {
         text = escape(cap[1]);
         href = text;
       }
-      out += '<a href="'
-        + href
-        + '">'
-        + text
-        + '</a>';
+      out += this.renderer.link(href, null, text);
       continue;
     }
 
     // url (gfm)
-    if (cap = this.rules.url.exec(src)) {
+    if (!this.inLink && (cap = this.rules.url.exec(src))) {
       src = src.substring(cap[0].length);
       text = escape(cap[1]);
       href = text;
-      out += '<a href="'
-        + href
-        + '">'
-        + text
-        + '</a>';
+      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
-        ? escape(cap[0])
-        : cap[0];
+        ? 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;
       out += this.outputLink(cap, {
         href: cap[2],
         title: cap[3]
       });
+      this.inLink = false;
       continue;
     }
 
@@ -628,57 +638,51 @@ InlineLexer.prototype.output = function(src) {
         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 += '<strong>'
-        + this.output(cap[2] || cap[1])
-        + '</strong>';
+      out += this.renderer.strong(this.output(cap[2] || cap[1]));
       continue;
     }
 
     // em
     if (cap = this.rules.em.exec(src)) {
       src = src.substring(cap[0].length);
-      out += '<em>'
-        + this.output(cap[2] || cap[1])
-        + '</em>';
+      out += this.renderer.em(this.output(cap[2] || cap[1]));
       continue;
     }
 
     // code
     if (cap = this.rules.code.exec(src)) {
       src = src.substring(cap[0].length);
-      out += '<code>'
-        + escape(cap[2], true)
-        + '</code>';
+      out += this.renderer.codespan(escape(cap[2], true));
       continue;
     }
 
     // br
     if (cap = this.rules.br.exec(src)) {
       src = src.substring(cap[0].length);
-      out += '<br>';
+      out += this.renderer.br();
       continue;
     }
 
     // del (gfm)
     if (cap = this.rules.del.exec(src)) {
       src = src.substring(cap[0].length);
-      out += '<del>'
-        + this.output(cap[1])
-        + '</del>';
+      out += this.renderer.del(this.output(cap[1]));
       continue;
     }
 
     // text
     if (cap = this.rules.text.exec(src)) {
       src = src.substring(cap[0].length);
-      out += escape(this.smartypants(cap[0]));
+      out += this.renderer.text(escape(this.smartypants(cap[0])));
       continue;
     }
 
@@ -696,31 +700,12 @@ InlineLexer.prototype.output = function(src) {
  */
 
 InlineLexer.prototype.outputLink = function(cap, link) {
-  if (cap[0].charAt(0) !== '!') {
-    return '<a href="'
-      + escape(link.href)
-      + '"'
-      + (link.title
-      ? ' title="'
-      + escape(link.title)
-      + '"'
-      : '')
-      + '>'
-      + this.output(cap[1])
-      + '</a>';
-  } else {
-    return '<img src="'
-      + escape(link.href)
-      + '" alt="'
-      + escape(cap[1])
-      + '"'
-      + (link.title
-      ? ' title="'
-      + escape(link.title)
-      + '"'
-      : '')
-      + '>';
-  }
+  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]));
 };
 
 /**
@@ -731,7 +716,9 @@ InlineLexer.prototype.smartypants = function(text) {
   if (!this.options.smartypants) return text;
   return text
     // em-dashes
-    .replace(/--/g, '\u2014')
+    .replace(/---/g, '\u2014')
+    // en-dashes
+    .replace(/--/g, '\u2013')
     // opening singles
     .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018')
     // closing singles & apostrophes
@@ -749,6 +736,7 @@ InlineLexer.prototype.smartypants = function(text) {
  */
 
 InlineLexer.prototype.mangle = function(text) {
+  if (!this.options.mangle) return text;
   var out = ''
     , l = text.length
     , i = 0
@@ -765,6 +753,153 @@ InlineLexer.prototype.mangle = function(text) {
   return out;
 };
 
+/**
+ * Renderer
+ */
+
+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';
+};
+
+// 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 '';
+    }
+    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;
+};
+
 /**
  * Parsing & Compiling
  */
@@ -773,14 +908,17 @@ 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);
+Parser.parse = function(src, options, renderer) {
+  var parser = new Parser(options, renderer);
   return parser.parse(src);
 };
 
@@ -789,7 +927,7 @@ Parser.parse = function(src, options) {
  */
 
 Parser.prototype.parse = function(src) {
-  this.inline = new InlineLexer(src.links, this.options);
+  this.inline = new InlineLexer(src.links, this.options, this.renderer);
   this.tokens = src.reverse();
 
   var out = '';
@@ -840,83 +978,53 @@ Parser.prototype.tok = function() {
       return '';
     }
     case 'hr': {
-      return '<hr>\n';
+      return this.renderer.hr();
     }
     case 'heading': {
-      return '<h'
-        + this.token.depth
-        + ' id="'
-        + this.token.text.toLowerCase().replace(/[^\w]+/g, '-')
-        + '">'
-        + this.inline.output(this.token.text)
-        + '</h'
-        + this.token.depth
-        + '>\n';
+      return this.renderer.heading(
+        this.inline.output(this.token.text),
+        this.token.depth,
+        this.token.text);
     }
     case 'code': {
-      if (this.options.highlight) {
-        var code = this.options.highlight(this.token.text, this.token.lang);
-        if (code != null && code !== this.token.text) {
-          this.token.escaped = true;
-          this.token.text = code;
-        }
-      }
-
-      if (!this.token.escaped) {
-        this.token.text = escape(this.token.text, true);
-      }
-
-      return '<pre><code'
-        + (this.token.lang
-        ? ' class="'
-        + this.options.langPrefix
-        + this.token.lang
-        + '"'
-        : '')
-        + '>'
-        + this.token.text
-        + '</code></pre>\n';
+      return this.renderer.code(this.token.text,
+        this.token.lang,
+        this.token.escaped);
     }
     case 'table': {
-      var body = ''
-        , heading
+      var header = ''
+        , body = ''
         , i
         , row
         , cell
+        , flags
         , j;
 
       // header
-      body += '<thead>\n<tr>\n';
+      cell = '';
       for (i = 0; i < this.token.header.length; i++) {
-        heading = this.inline.output(this.token.header[i]);
-        body += '<th';
-        if (this.token.align[i]) {
-          body += ' style="text-align:' + this.token.align[i] + '"';
-        }
-        body += '>' + heading + '</th>\n';
+        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] }
+        );
       }
-      body += '</tr>\n</thead>\n';
+      header += this.renderer.tablerow(cell);
 
-      // body
-      body += '<tbody>\n'
       for (i = 0; i < this.token.cells.length; i++) {
         row = this.token.cells[i];
-        body += '<tr>\n';
+
+        cell = '';
         for (j = 0; j < row.length; j++) {
-          cell = this.inline.output(row[j]);
-          body += '<td';
-          if (this.token.align[j]) {
-            body += ' style="text-align:' + this.token.align[j] + '"';
-          }
-          body += '>' + cell + '</td>\n';
+          cell += this.renderer.tablecell(
+            this.inline.output(row[j]),
+            { header: false, align: this.token.align[j] }
+          );
         }
-        body += '</tr>\n';
-      }
-      body += '</tbody>\n';
 
-      return '<table>\n'
-        + body
-        + '</table>\n';
+        body += this.renderer.tablerow(cell);
+      }
+      return this.renderer.table(header, body);
     }
     case 'blockquote_start': {
       var body = '';
@@ -925,25 +1033,17 @@ Parser.prototype.tok = function() {
         body += this.tok();
       }
 
-      return '<blockquote>\n'
-        + body
-        + '</blockquote>\n';
+      return this.renderer.blockquote(body);
     }
     case 'list_start': {
-      var type = this.token.ordered ? 'ol' : 'ul'
-        , body = '';
+      var body = ''
+        , ordered = this.token.ordered;
 
       while (this.next().type !== 'list_end') {
         body += this.tok();
       }
 
-      return '<'
-        + type
-        + '>\n'
-        + body
-        + '</'
-        + type
-        + '>\n';
+      return this.renderer.list(body, ordered);
     }
     case 'list_item_start': {
       var body = '';
@@ -954,9 +1054,7 @@ Parser.prototype.tok = function() {
           : this.tok();
       }
 
-      return '<li>'
-        + body
-        + '</li>\n';
+      return this.renderer.listitem(body);
     }
     case 'loose_item_start': {
       var body = '';
@@ -965,24 +1063,19 @@ Parser.prototype.tok = function() {
         body += this.tok();
       }
 
-      return '<li>'
-        + body
-        + '</li>\n';
+      return this.renderer.listitem(body);
     }
     case 'html': {
-      return !this.token.pre && !this.options.pedantic
+      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 '<p>'
-        + this.inline.output(this.token.text)
-        + '</p>\n';
+      return this.renderer.paragraph(this.inline.output(this.token.text));
     }
     case 'text': {
-      return '<p>'
-        + this.parseText()
-        + '</p>\n';
+      return this.renderer.paragraph(this.parseText());
     }
   }
 };
@@ -1000,6 +1093,19 @@ function escape(html, encode) {
     .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 || '';
@@ -1032,6 +1138,7 @@ function merge(obj) {
   return obj;
 }
 
+
 /**
  * Marked
  */
@@ -1058,8 +1165,13 @@ function marked(src, opt, callback) {
 
     pending = tokens.length;
 
-    var done = function() {
-      var out, err;
+    var done = function(err) {
+      if (err) {
+        opt.highlight = highlight;
+        return callback(err);
+      }
+
+      var out;
 
       try {
         out = Parser.parse(tokens, opt);
@@ -1088,6 +1200,7 @@ function marked(src, opt, callback) {
           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();
           }
@@ -1130,11 +1243,16 @@ marked.defaults = {
   breaks: false,
   pedantic: false,
   sanitize: false,
+  sanitizer: null,
+  mangle: true,
   smartLists: false,
   silent: false,
   highlight: null,
   langPrefix: 'lang-',
-  smartypants: false
+  smartypants: false,
+  headerPrefix: '',
+  renderer: new Renderer,
+  xhtml: false
 };
 
 /**
@@ -1144,6 +1262,8 @@ marked.defaults = {
 marked.Parser = Parser;
 marked.parser = Parser.parse;
 
+marked.Renderer = Renderer;
+
 marked.Lexer = Lexer;
 marked.lexer = Lexer.lex;
 
@@ -1152,7 +1272,7 @@ marked.inlineLexer = InlineLexer.output;
 
 marked.parse = marked;
 
-if (typeof exports === 'object') {
+if (typeof module !== 'undefined' && typeof exports === 'object') {
   module.exports = marked;
 } else if (typeof define === 'function' && define.amd) {
   define(function() { return marked; });
@@ -1162,4 +1282,4 @@ if (typeof exports === 'object') {
 
 }).call(function() {
   return this || (typeof window !== 'undefined' ? window : global);
-}());
+}());