#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2010 Doug Hellmann.  All rights reserved.
     #
     """Looking at groups on a match object
     """
     #end_pymotw_header
     
     import re
     
     text = 'This is some text -- with punctuation.'
     
     print text
     print
     
     for pattern in [ r'^(\w+)',           # word at start of string
                      r'(\w+)\S*$',        # word at end of string, with optional punctuation
                      r'(\bt\w+)\W+(\w+)', # word starting with 't' then another word
                      r'(\w+t)\b',         # word ending with 't'
                      ]:
         regex = re.compile(pattern)
         match = regex.search(text)
         print 'Matching "%s"' % pattern
         print '  ', match.groups()
         print