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feat:1、扩展Markdown图片语法,支持设置图片大小
2、扩展Markdown引用语法,支持不通引用类型

lifei6671 7 years ago
parent
commit
bcfda7082b
2 changed files with 1638 additions and 6 deletions
  1. 65 6
      static/editor.md/editormd.js
  2. 1573 0
      static/editor.md/lib/marked.js

+ 65 - 6
static/editor.md/editormd.js

@@ -89,6 +89,7 @@
     };
     
     editormd.defaults     = {
+        debug                : false,
         mode                 : "gfm",          //gfm or markdown
         name                 : "",             // Form element name
         value                : "",             // value for CodeMirror, if mode not gfm/markdown
@@ -608,7 +609,7 @@
                         
                         _this.setToolbar();
 
-                        editormd.loadScript(loadPath + "marked.min", function() {
+                        editormd.loadScript(loadPath + "marked", function() {
 
                             editormd.$marked = marked;
 
@@ -1576,8 +1577,11 @@
                 if (flowchartTimer === null) {
                     return this;
                 }
-                
-                previewContainer.find(".flowchart").flowChart(); 
+                try {
+                    previewContainer.find(".flowchart").flowChart();
+                }catch (e) {
+                    console.log(e);
+                }
             }
 
             if (settings.sequenceDiagram) {
@@ -2068,9 +2072,10 @@
             marked.setOptions(markedOptions);
                     
             var newMarkdownDoc = editormd.$marked(cmValue, markedOptions);
-            
-            //console.info("cmValue", cmValue, newMarkdownDoc);
-            
+
+            if(settings.debug) {
+                console.info("cmValue", cmValue, newMarkdownDoc);
+            }
             newMarkdownDoc = editormd.filterHTMLTags(newMarkdownDoc, settings.htmlDecode);
             
             //console.error("cmValue", cmValue, newMarkdownDoc);
@@ -3466,6 +3471,60 @@
         var editormdLogoReg = regexs.editormdLogo;
         var pageBreakReg    = regexs.pageBreak;
 
+        markedRenderer.blockquote = function($quote) {
+            console.log($quote)
+            var $class = "default";
+            if($quote.indexOf("[info]") === 0){
+                $class = "info";
+                $quote = $quote.substr(6);
+            }else if($quote.indexOf("<p>[info]") === 0){
+                $class = "info";
+                $quote = $quote.substr(9);
+            }else if($quote.indexOf("[warning]") === 0){
+                $class = "warning";
+                $quote = $quote.substr(9);
+            }else if($quote.indexOf("<p>[warning]") === 0){
+                $class = "warning";
+                $quote = $quote.substr(12);
+            }else if($quote.indexOf("[success]") === 0){
+                $class = "success";
+                $quote = $quote.substr(9);
+            }else if($quote.indexOf("<p>[success]") === 0){
+                $class = "success";
+                $quote = $quote.substr(12);
+            }else if($quote.indexOf("[danger]") === 0){
+                $class = "danger";
+                $quote = $quote.substr(8);
+            }else if($quote.indexOf("<p>[danger]") === 0){
+                $class = "danger";
+                $quote = $quote.substr(11);
+            }
+
+            return '<blockquote class="'+$class+'">\n' + $quote + '</blockquote>\n';
+        };
+
+        markedRenderer.image = function(href,title,text) {
+            var attr = "";
+
+            if(href && href !== ""){
+                var a =  document.createElement('a');
+                a.href = href;
+                var attrs = a.hash.match(/size=\d+x\d+/i);
+                if(attrs !== null) {
+                    a.hash = a.hash.replace(attrs[0],"");
+                    href = a.href;
+                    attrs = attrs[0].replace("size=","").split("x");
+                    if(attrs[0] > 0) {
+                        attr += " width=\"" + attrs[0] + "\""
+                    }
+                    if(attrs[1] > 0) {
+                        attr += " height=\"" + attrs[1] + "\""
+                    }
+                }
+            }
+            return "<img src=\""+href+"\" title=\""+title+"\" alt=\""+text+"\" "+attr+">"
+        };
+
         markedRenderer.emoji = function(text) {
             
             text = text.replace(editormd.regexs.emojiDatetime, function($1) {           

+ 1573 - 0
static/editor.md/lib/marked.js

@@ -0,0 +1,1573 @@
+/**
+ * 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+|$)/
+});
+
+/**
+ * Block Lexer
+ */
+
+function Lexer(options) {
+  this.tokens = [];
+  this.tokens.links = Object.create(null);
+  this.options = options || marked.defaults;
+  this.rules = block.normal;
+
+  if (this.options.pedantic) {
+    this.rules = block.pedantic;
+  } else if (this.options.gfm) {
+    if (this.options.tables) {
+      this.rules = block.tables;
+    } else {
+      this.rules = block.gfm;
+    }
+  }
+}
+
+/**
+ * Expose Block Rules
+ */
+
+Lexer.rules = block;
+
+/**
+ * Static Lex Method
+ */
+
+Lexer.lex = function(src, options) {
+  var lexer = new Lexer(options);
+  return lexer.lex(src);
+};
+
+/**
+ * Preprocessing
+ */
+
+Lexer.prototype.lex = function(src) {
+  src = src
+    .replace(/\r\n|\r/g, '\n')
+    .replace(/\t/g, '    ')
+    .replace(/\u00a0/g, ' ')
+    .replace(/\u2424/g, '\n');
+
+  return this.token(src, true);
+};
+
+/**
+ * Lexing
+ */
+
+Lexer.prototype.token = function(src, top) {
+  src = src.replace(/^ +$/gm, '');
+  var next,
+      loose,
+      cap,
+      bull,
+      b,
+      item,
+      listStart,
+      listItems,
+      t,
+      space,
+      i,
+      tag,
+      l,
+      isordered,
+      istask,
+      ischecked;
+
+  while (src) {
+    // newline
+    if (cap = this.rules.newline.exec(src)) {
+      src = src.substring(cap[0].length);
+      if (cap[0].length > 1) {
+        this.tokens.push({
+          type: 'space'
+        });
+      }
+    }
+
+    // code
+    if (cap = this.rules.code.exec(src)) {
+      src = src.substring(cap[0].length);
+      cap = cap[0].replace(/^ {4}/gm, '');
+      this.tokens.push({
+        type: 'code',
+        text: !this.options.pedantic
+          ? rtrim(cap, '\n')
+          : cap
+      });
+      continue;
+    }
+
+    // fences (gfm)
+    if (cap = this.rules.fences.exec(src)) {
+      src = src.substring(cap[0].length);
+      this.tokens.push({
+        type: 'code',
+        lang: cap[2],
+        text: cap[3] || ''
+      });
+      continue;
+    }
+
+    // heading
+    if (cap = this.rules.heading.exec(src)) {
+      src = src.substring(cap[0].length);
+      this.tokens.push({
+        type: 'heading',
+        depth: cap[1].length,
+        text: cap[2]
+      });
+      continue;
+    }
+
+    // table no leading pipe (gfm)
+    if (top && (cap = this.rules.nptable.exec(src))) {
+      item = {
+        type: 'table',
+        header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
+        align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
+        cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
+      };
+
+      if (item.header.length === item.align.length) {
+        src = src.substring(cap[0].length);
+
+        for (i = 0; i < item.align.length; i++) {
+          if (/^ *-+: *$/.test(item.align[i])) {
+            item.align[i] = 'right';
+          } else if (/^ *:-+: *$/.test(item.align[i])) {
+            item.align[i] = 'center';
+          } else if (/^ *:-+ *$/.test(item.align[i])) {
+            item.align[i] = 'left';
+          } else {
+            item.align[i] = null;
+          }
+        }
+
+        for (i = 0; i < item.cells.length; i++) {
+          item.cells[i] = splitCells(item.cells[i], item.header.length);
+        }
+
+        this.tokens.push(item);
+
+        continue;
+      }
+    }
+
+    // hr
+    if (cap = this.rules.hr.exec(src)) {
+      src = src.substring(cap[0].length);
+      this.tokens.push({
+        type: 'hr'
+      });
+      continue;
+    }
+
+    // blockquote
+    if (cap = this.rules.blockquote.exec(src)) {
+      src = src.substring(cap[0].length);
+
+      this.tokens.push({
+        type: 'blockquote_start'
+      });
+
+      cap = cap[0].replace(/^ *> ?/gm, '');
+
+      // Pass `top` to keep the current
+      // "toplevel" state. This is exactly
+      // how markdown.pl works.
+      this.token(cap, top);
+
+      this.tokens.push({
+        type: 'blockquote_end'
+      });
+
+      continue;
+    }
+
+    // list
+    if (cap = this.rules.list.exec(src)) {
+      src = src.substring(cap[0].length);
+      bull = cap[2];
+      isordered = bull.length > 1;
+
+      listStart = {
+        type: 'list_start',
+        ordered: isordered,
+        start: isordered ? +bull : '',
+        loose: false
+      };
+
+      this.tokens.push(listStart);
+
+      // Get each top-level item.
+      cap = cap[0].match(this.rules.item);
+
+      listItems = [];
+      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;
+        }
+
+        if (loose) {
+          listStart.loose = true;
+        }
+
+        // Check for task list items
+        istask = /^\[[ xX]\] /.test(item);
+        ischecked = undefined;
+        if (istask) {
+          ischecked = item[1] !== ' ';
+          item = item.replace(/^\[[ xX]\] +/, '');
+        }
+
+        t = {
+          type: 'list_item_start',
+          task: istask,
+          checked: ischecked,
+          loose: loose
+        };
+
+        listItems.push(t);
+        this.tokens.push(t);
+
+        // Recurse.
+        this.token(item, false);
+
+        this.tokens.push({
+          type: 'list_item_end'
+        });
+      }
+
+      if (listStart.loose) {
+        l = listItems.length;
+        i = 0;
+        for (; i < l; i++) {
+          listItems[i].loose = true;
+        }
+      }
+
+      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,
+      prevCapZero;
+
+  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))) {
+      do {
+        prevCapZero = cap[0];
+        cap[0] = this.rules._backpedal.exec(cap[0])[0];
+      } while (prevCapZero !== cap[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 class="line">' + 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 = '';
+      var loose = this.token.loose;
+
+      if (this.token.task) {
+        body += this.renderer.checkbox(this.token.checked);
+      }
+
+      while (this.next().type !== 'list_item_end') {
+        body += !loose && this.token.type === 'text'
+          ? this.parseText()
+          : 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] = rtrim(base, '/', true);
+    }
+  }
+  base = baseUrls[' ' + base];
+
+  if (href.slice(0, 2) === '//') {
+    return base.replace(/:[\s\S]*/, ':') + href;
+  } else if (href.charAt(0) === '/') {
+    return base.replace(/(:\/*[^/]*)[\s\S]*/, '$1') + href;
+  } else {
+    return base + href;
+  }
+}
+var baseUrls = {};
+var originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;
+
+function noop() {}
+noop.exec = noop;
+
+function merge(obj) {
+  var i = 1,
+      target,
+      key;
+
+  for (; i < arguments.length; i++) {
+    target = arguments[i];
+    for (key in target) {
+      if (Object.prototype.hasOwnProperty.call(target, key)) {
+        obj[key] = target[key];
+      }
+    }
+  }
+
+  return obj;
+}
+
+function splitCells(tableRow, count) {
+  // ensure that every cell-delimiting pipe has a space
+  // before it to distinguish it from an escaped pipe
+  var row = tableRow.replace(/\|/g, function (match, offset, str) {
+        var escaped = false,
+            curr = offset;
+        while (--curr >= 0 && str[curr] === '\\') escaped = !escaped;
+        if (escaped) {
+          // odd number of slashes means | is escaped
+          // so we leave it alone
+          return '|';
+        } else {
+          // add space before unescaped |
+          return ' |';
+        }
+      }),
+      cells = row.split(/ \|/),
+      i = 0;
+
+  if (cells.length > count) {
+    cells.splice(count);
+  } else {
+    while (cells.length < count) cells.push('');
+  }
+
+  for (; i < cells.length; i++) {
+    // leading or trailing whitespace is ignored per the gfm spec
+    cells[i] = cells[i].trim().replace(/\\\|/g, '|');
+  }
+  return cells;
+}
+
+// Remove trailing 'c's. Equivalent to str.replace(/c*$/, '').
+// /c*$/ is vulnerable to REDOS.
+// invert: Remove suffix of non-c chars instead. Default falsey.
+function rtrim(str, c, invert) {
+  if (str.length === 0) {
+    return '';
+  }
+
+  // Length of suffix matching the invert condition.
+  var suffLen = 0;
+
+  // Step left until we fail to match the invert condition.
+  while (suffLen < str.length) {
+    var currChar = str.charAt(str.length - suffLen - 1);
+    if (currChar === c && !invert) {
+      suffLen++;
+    } else if (currChar !== c && invert) {
+      suffLen++;
+    } else {
+      break;
+    }
+  }
+
+  return str.substr(0, str.length - suffLen);
+}
+
+/**
+ * Marked
+ */
+
+function marked(src, opt, callback) {
+  // throw error in case of non string input
+  if (typeof src === 'undefined' || src === null) {
+    throw new Error('marked(): input parameter is undefined or null');
+  }
+  if (typeof src !== 'string') {
+    throw new Error('marked(): input parameter is of type '
+      + Object.prototype.toString.call(src) + ', string expected');
+  }
+
+  if (callback || typeof opt === 'function') {
+    if (!callback) {
+      callback = opt;
+      opt = null;
+    }
+
+    opt = merge({}, marked.defaults, opt || {});
+
+    var highlight = opt.highlight,
+        tokens,
+        pending,
+        i = 0;
+
+    try {
+      tokens = Lexer.lex(src, opt)
+    } catch (e) {
+      return callback(e);
+    }
+
+    pending = tokens.length;
+
+    var done = function(err) {
+      if (err) {
+        opt.highlight = highlight;
+        return callback(err);
+      }
+
+      var out;
+
+      try {
+        out = Parser.parse(tokens, opt);
+      } catch (e) {
+        err = e;
+      }
+
+      opt.highlight = highlight;
+
+      return err
+        ? callback(err)
+        : callback(null, out);
+    };
+
+    if (!highlight || highlight.length < 3) {
+      return done();
+    }
+
+    delete opt.highlight;
+
+    if (!pending) return done();
+
+    for (; i < tokens.length; i++) {
+      (function(token) {
+        if (token.type !== 'code') {
+          return --pending || done();
+        }
+        return highlight(token.text, token.lang, function(err, code) {
+          if (err) return done(err);
+          if (code == null || code === token.text) {
+            return --pending || done();
+          }
+          token.text = code;
+          token.escaped = true;
+          --pending || done();
+        });
+      })(tokens[i]);
+    }
+
+    return;
+  }
+  try {
+    if (opt) opt = merge({}, marked.defaults, opt);
+    return Parser.parse(Lexer.lex(src, opt), opt);
+  } catch (e) {
+    e.message += '\nPlease report this to https://github.com/markedjs/marked.';
+    if ((opt || marked.defaults).silent) {
+      return '<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));