#!/usr/bin/env python
     #
     # Copyright 2007 Doug Hellmann.
     #
     #
     #                         All Rights Reserved
     #
     # Permission to use, copy, modify, and distribute this software and
     # its documentation for any purpose and without fee is hereby
     # granted, provided that the above copyright notice appear in all
     # copies and that both that copyright notice and this permission
     # notice appear in supporting documentation, and that the name of Doug
     # Hellmann not be used in advertising or publicity pertaining to
     # distribution of the software without specific, written prior
     # permission.
     #
     # DOUG HELLMANN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
     # INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
     # NO EVENT SHALL DOUG HELLMANN BE LIABLE FOR ANY SPECIAL, INDIRECT OR
     # CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
     # OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
     # NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
     # CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     #
     
     """Differences between POSIX and non-POSIX parsing.
     
     """
     
     __version__ = "$Id$"
     #end_pymotw_header
     
     import shlex
     
     for s in [ 'Do"Not"Separate',
                '"Do"Separate',
                'Escaped \e Character not in quotes',
                'Escaped "\e" Character in double quotes',
                "Escaped '\e' Character in single quotes",
                r"Escaped '\'' \"\'\" single quote",
                r'Escaped "\"" \'\"\' double quote',
                "\"'Strip extra layer of quotes'\"",
                ]:
         print 'ORIGINAL :', repr(s)
         print 'non-POSIX:',
     
         non_posix_lexer = shlex.shlex(s, posix=False)
         try:
             print repr(list(non_posix_lexer))
         except ValueError, err:
             print 'error(%s)' % err
     
         
         print 'POSIX    :',
         posix_lexer = shlex.shlex(s, posix=True)
         try:
             print repr(list(posix_lexer))
         except ValueError, err:
             print 'error(%s)' % err
     
         print