livid/v2ex — pull request #26 by alexzhan (2012-04-06 03:11:06+00:00)
Title: Modify autolink using regular expression

Modify autolink using regular expression from http://daringfireball.net/2010/07/improved_regex_for_matching_urls
Code from : https://github.com/facebook/tornado/blob/master/tornado/escape.py