From a5179fb7ed427c7dc74290d9295ff1b292fd7f3e Mon Sep 17 00:00:00 2001
From: Evgeny Fadeev <evgeny.fadeev@gmail.com>
Date: Fri, 10 Dec 2010 21:50:31 -0500
Subject: autolink urls

---
 askbot/utils/markup.py | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/askbot/utils/markup.py b/askbot/utils/markup.py
index 86c4c3b8..8347811a 100644
--- a/askbot/utils/markup.py
+++ b/askbot/utils/markup.py
@@ -1,13 +1,26 @@
+import re
 from askbot import const
 from askbot.conf import settings as askbot_settings
 from markdown2 import Markdown
 
+#url taken from http://regexlib.com/REDetails.aspx?regexp_id=501 by Brian Bothwell
+URL_RE = re.compile("(?<!href=['\"])((http|https|ftp)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&amp;%\$\-]+)*@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\?\'\\\+&amp;%\$#\=~_\-]+))*)")
+
+LINK_PATTERNS = [
+    (URL_RE, r'\1'),
+]
+
 def get_parser():
+    extras = ['link-patterns',]  
     if askbot_settings.ENABLE_MATHJAX or \
         askbot_settings.MARKUP_CODE_FRIENDLY:
-        return Markdown(html4tags=True, extras=['code-friendly',])
-    else:
-        return Markdown(html4tags=True)
+        extras.append('code-friendly')
+
+    return Markdown(
+                html4tags=True,
+                extras=extras,
+                link_patterns = LINK_PATTERNS
+            )
 
 
 def format_mention_in_html(mentioned_user):
-- 
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