gfm autolinks and em underscores. more compliant strong and em.

lib/marked.js

@@ -218,18 +218,21 @@ block.token = function(str, tokens) {
 var inline = {
   escape: /^\\([\\`*{}\[\]()#+\-.!_])/,
   autolink: /^<([^ >]+(@|:\/)[^ >]+)>/,
+  gfm_autolink: /^(\w+:\/\/[^\s]+[^.,:;"')\]\s])/,
   tag: /^<!--[^\0]*?-->|^<\/?\w+[^>]*>/,
   link: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]\(([^\)]*)\)/,
   reflink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]\s*\[([^\]]*)\]/,
   nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
-  strong: /^__([^\0]+?)__(?!_)|^\*\*([^\0]+?)\*\*(?!\*)/,
-  em: /^_([^_]+)_|^\*([^*]+)\*/,
+  // strong: /^(__|\*\*)(?=\S)([^\0]*?\S)\1(?!\*|_)/,
+  strong: /^__(?=\S)([^\0]*?\S)__(?!_)|^\*\*(?=\S)([^\0]*?\S)\*\*(?!\*)/,
+  // em: /^(_|\*)(?=\S)([^\0]*?\S)\1/,
+  em: /^\b_(?=\S)([^\0]*?\S)_\b|^\*(?=\S)([^\0]*?\S)\*/,
+  // code: /^(``?)([^\0]+?)\1/,
   code: /^`([^`]+)`|^``([^\0]+?)``/,
   br: /^ {2,}\n(?!\s*$)/,
   text: /^/
 };
 
-// hacky, but performant
 inline.text = (function() {
   var body = [];
 
@@ -239,6 +242,7 @@ inline.text = (function() {
     return push;
   })
   ('escape')
+  ('gfm_autolink')
   ('tag')
   ('nolink')
   ('strong')
@@ -290,6 +294,19 @@ inline.lexer = function(str) {
       continue;
     }
 
+    // gfm_autolink
+    if (cap = inline.gfm_autolink.exec(str)) {
+      str = str.substring(cap[0].length);
+      text = escape(cap[1]);
+      href = text;
+      out += '<a href="'
+        + href
+        + '">'
+        + text
+        + '</a>';
+      continue;
+    }
+
     // tag
     if (cap = inline.tag.exec(str)) {
       str = str.substring(cap[0].length);
@@ -427,7 +444,9 @@ var tok = function() {
     }
     case 'code': {
       return '<pre><code>'
-        + escape(token.text, true)
+        + (token.escaped
+          ? token.text
+          : escape(token.text, true))
         + '</code></pre>';
     }
     case 'blockquote_start': {

test/index.js

@@ -97,7 +97,12 @@ main:
 };
 
 main.bench = function(name, func) {
-  if (!files) load();
+  if (!files) {
+    load();
+    Object.keys(files).forEach(function(name) {
+      if (name.indexOf('gfm') === 0) delete files[name];
+    });
+  }
 
   var start = Date.now()
     , times = 1000