diff --git a/lib/marked.js b/lib/marked.js
index 57f2ee54..19ad02e9 100644
--- a/lib/marked.js
+++ b/lib/marked.js
@@ -17,7 +17,7 @@ var block = {
   heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,
   lheading: /^([^\n]+)\n *(=|-){3,} *\n*/,
   blockquote: /^( *>[^\n]+(\n[^\n]+)*\n*)+/,
-  list: /^( *)(bull) [^\0]+?(?:hr|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
+  list: /^( *)(bull) [\s\S]+?(?:hr|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
   html: /^ *(?:comment|closed|closing) *(?:\n{2,}|\s*$)/,
   def: /^ *\[([^\]]+)\]: *([^\s]+)(?: +["(]([^\n]+)[")])? *(?:\n+|$)/,
   paragraph: /^([^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+\n*/,
@@ -36,8 +36,8 @@ block.list = replace(block.list)
   ();
 
 block.html = replace(block.html)
-  ('comment', /<!--[^\0]*?-->/)
-  ('closed', /<(tag)[^\0]+?<\/\1>/)
+  ('comment', /<!--[\s\S]*?-->/)
+  ('closed', /<(tag)[\s\S]+?<\/\1>/)
   ('closing', /<tag(?:"[^"]*"|'[^']*'|[^'">])*?>/)
   (/tag/g, tag())
   ();
@@ -57,7 +57,7 @@ block.normal = {
 };
 
 block.gfm = {
-  fences: /^ *(```|~~~) *(\w+)? *\n([^\0]+?)\s*\1 *(?:\n+|$)/,
+  fences: /^ *(```|~~~) *(\w+)? *\n([\s\S]+?)\s*\1 *(?:\n+|$)/,
   paragraph: /^/
 };
 
@@ -298,19 +298,19 @@ var inline = {
   escape: /^\\([\\`*{}\[\]()#+\-.!_>])/,
   autolink: /^<([^ >]+(@|:\/)[^ >]+)>/,
   url: noop,
-  tag: /^<!--[^\0]*?-->|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/,
+  tag: /^<!--[\s\S]*?-->|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/,
   link: /^!?\[(inside)\]\(href\)/,
   reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
   nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
-  strong: /^__([^\0]+?)__(?!_)|^\*\*([^\0]+?)\*\*(?!\*)/,
-  em: /^\b_((?:__|[^\0])+?)_\b|^\*((?:\*\*|[^\0])+?)\*(?!\*)/,
-  code: /^(`+)([^\0]*?[^`])\1(?!`)/,
+  strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/,
+  em: /^\b_((?:__|[\s\S])+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/,
+  code: /^(`+)([\s\S]*?[^`])\1(?!`)/,
   br: /^ {2,}\n(?!\s*$)/,
-  text: /^[^\0]+?(?=[\\<!\[_*`]| {2,}\n|$)/
+  text: /^[\s\S]+?(?=[\\<!\[_*`]| {2,}\n|$)/
 };
 
 inline._linkInside = /(?:\[[^\]]*\]|[^\]]|\](?=[^\[]*\]))*/;
-inline._linkHref = /\s*<?([^\s]*?)>?(?:\s+['"]([^\0]*?)['"])?\s*/;
+inline._linkHref = /\s*<?([^\s]*?)>?(?:\s+['"]([\s\S]*?)['"])?\s*/;
 
 inline.link = replace(inline.link)
   ('inside', inline._linkInside)
@@ -329,13 +329,13 @@ inline.normal = {
 };
 
 inline.pedantic = {
-  strong: /^__(?=\S)([^\0]*?\S)__(?!_)|^\*\*(?=\S)([^\0]*?\S)\*\*(?!\*)/,
-  em: /^_(?=\S)([^\0]*?\S)_(?!_)|^\*(?=\S)([^\0]*?\S)\*(?!\*)/
+  strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
+  em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/
 };
 
 inline.gfm = {
   url: /^(https?:\/\/[^\s]+[^.,:;"')\]\s])/,
-  text: /^[^\0]+?(?=[\\<!\[_*`]|https?:\/\/| {2,}\n|$)/
+  text: /^[\s\S]+?(?=[\\<!\[_*`]|https?:\/\/| {2,}\n|$)/
 };
 
 /**