A script to linkify URLs in text

linkify.py

#!/usr/bin/env python
# A simple script that can be used to turn URLs into links
#
# Using within a pipeline:
#
#   $ echo 'http://lewk.org' | linkify
#   <a href="http://lewk.org">http://lewk.org</a>
#
# Using on a file:
#
#   $ linkify filename
#   <a href="http://lewk.org">http://lewk.org</a>
#
# Author: Luke Macken <lmacken@redhat.com>
# License: GPLv3

import re, sys, fileinput

regex = re.compile(r'.*(https?:\/\/\S+).*')

def main():
    for line in fileinput.input():
        match = regex.match(line)
        if match:
            match = match.groups(0)[0]
            line = line.replace(match, '<a href="%s">%s</a>' % (match, match))
        print line,

if __name__ == '__main__':
    main()