#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2009 Doug Hellmann All rights reserved.
     #
     """
     """
     #end_pymotw_header
     
     import subprocess
     
     cat = subprocess.Popen(['cat', 'index.rst'], 
                             stdout=subprocess.PIPE,
                             )
     
     grep = subprocess.Popen(['grep', '.. include::'],
                             stdin=cat.stdout,
                             stdout=subprocess.PIPE,
                             )
     
     cut = subprocess.Popen(['cut', '-f', '3', '-d:'],
                             stdin=grep.stdout,
                             stdout=subprocess.PIPE,
                             )
     
     end_of_pipe = cut.stdout
     
     print 'Included files:'
     for line in end_of_pipe:
         print '\t', line.strip()