#!/usr/bin/env python
"""
obfuscate.py - Email Address Obfuscator
Author: Sean B. Palmer, inamidst.com
"""

import sys, re, fileinput

r_email = re.compile(r"""(?x)(
   [A-Za-z0-9!#$%&'*+/=?^`{|+~_-]+
   (\.[A-Za-z0-9!#$%&'*+/=?^`{|+~_-]+)* @ 
   ([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9]\.)*
   ([A-Za-z]|[A-Za-z][A-Za-z0-9-]*[A-Za-z0-9])
)""")

def replace(match): 
   email = match.group(1)
   return email.encode('rot13')

def main(): 
   for line in fileinput.input(sys.argv[1:]): 
      sys.stdout.write(r_email.sub(replace, line))

if __name__=="__main__": 
   main()