0001-fix-showdown-to-work-in-chrome-don-t-use-RegExp.left.patch

From e22317131b97d0faa5510b528ef515ccbbbd3e8e Mon Sep 17 00:00:00 2001
From: Jacob Rothstein <github@jacobrothstein.com>
Date: Tue, 13 Jul 2010 13:24:34 -0700
Subject: [PATCH] fix showdown to work in chrome (don't use RegExp.leftContext and RegExp.rightContext globals)

---
 scripts/showdown.js |   10 ++++------
 1 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/scripts/showdown.js b/scripts/showdown.js
index e8772af..582a40f 100644
--- a/scripts/showdown.js
+++ b/scripts/showdown.js
@@ -188,20 +188,18 @@ this.makeHtml = function(text) {
   });
 
   // ** GFM ** Auto-link #issue if GitHub.nameWithOwner is defined
-  text = text.replace(/#([0-9]+)/ig, function(wholeMatch,issue){
+  text = text.replace(/#([0-9]+)/ig, function(wholeMatch,issue,matchIndex){
     if (typeof(GitHub) == "undefined" || typeof(GitHub.nameWithOwner) == "undefined") {return wholeMatch;}
-    var left = RegExp.leftContext
-    var right = RegExp.rightContext
+    var left = text.slice(0, matchIndex), right = text.slice(matchIndex)
     if (left == "" || left.match(/[a-z0-9_\-+=.]$/) || (left.match(/<[^>]+$/) && right.match(/^[^>]*>/))) {return wholeMatch;}
     return "<a href='http://github.com/" + GitHub.nameWithOwner + "/issues/#issue/" + issue + "'>" + wholeMatch + "</a>";
   });
 
   // ** GFM ** Auto-link user#issue if GitHub.nameWithOwner is defined
-  text = text.replace(/([a-z0-9_\-+=.]+)#([0-9]+)/ig, function(wholeMatch,username,issue){
+  text = text.replace(/([a-z0-9_\-+=.]+)#([0-9]+)/ig, function(wholeMatch,username,issue,matchIndex){
     if (typeof(GitHub) == "undefined" || typeof(GitHub.nameWithOwner) == "undefined") {return wholeMatch;}
     GitHub.repoName = GitHub.repoName || _GetRepoName()
-    var left = RegExp.leftContext
-    var right = RegExp.rightContext
+    var left = text.slice(0, matchIndex), right = text.slice(matchIndex)
     if (left.match(/\/$/) || (left.match(/<[^>]+$/) && right.match(/^[^>]*>/))) {return wholeMatch;}
     return "<a href='http://github.com/" + username + "/" + GitHub.repoName + "/issues/#issue/" + issue + "'>" + wholeMatch + "</a>";
   });
-- 
1.7.1

Thank you for this. Saved my life :)