From 54571268e514402102f52ce6a1576a1eb3b19d62 Mon Sep 17 00:00:00 2001
From: Alex Harrison <alex@harrison.se>
Date: Thu, 9 Feb 2012 23:30:28 +0100
Subject: [PATCH] Added a post conversion hook to PageDown to add
 target="_blank" (fixes #2792)

---
 public/javascripts/app/helpers/text_formatter.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/public/javascripts/app/helpers/text_formatter.js b/public/javascripts/app/helpers/text_formatter.js
index d977414f3..51bc72b4a 100644
--- a/public/javascripts/app/helpers/text_formatter.js
+++ b/public/javascripts/app/helpers/text_formatter.js
@@ -12,6 +12,11 @@
 
   textFormatter.markdownify = function markdownify(text){
     var converter = Markdown.getSanitizingConverter();
+    
+    converter.hooks.chain("postConversion", function (text) {
+      return text.replace(/(\"(?:(?:http|https):\/\/)?[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(?:\/\S*)?\")(\>)/g, '$1 target="_blank">')
+    });
+
     return converter.makeHtml(text)
   };