#!/usr/bin/env python

__revision__ = "$Id$"

import sys, getopt, string

# bit of goofing around with the getopt module to learn how it works
# (or doesn't work)

# conclusion: distutils needs to parse fairly complicated command lines, eg.
#   ./setup.py --prefix=/home/me --python=/home/me/bin/python 
#              build --blib=/tmp/pyblib
#              test --verbose
#              install
# where some options (--prefix, --python) are "global", and others
# are apportioned to individual commands.  A further possibility is
# "global" options that are specified by setup.py.  I don't think
# the standard 'getopt' module can handle this, although we can
# probably rip-off a lot of its code.

def try_it (args, opts, long_opts=[]):
    print "** parsing:", string.join (args, ' ')
    try:
        (values, leftovers) = getopt.getopt (args, opts, long_opts)
    except getopt.error:
        print "getopt error: %s" % sys.exc_value
    else:
        print "values:", string.join (map (repr, values), ' ')
        print "leftovers:", string.join (leftovers, ' ')
    

try_it (['-a', 'foo', '-x', '-y', 'bar'], 'a:xy')
try_it (['-a', 'foo', '-xy', 'bar'], 'a:xy')
try_it (['-a', 'foo', '-x', '-y', 'bar'], 'a:xy:')
try_it (['-afoo', '-x', '-y', 'bar'], 'a:xy:')

try_it (['-a', 'foo', '--extreme', '-y', 'bar'], 'a:xy:')
try_it (['-a', 'foo', '--extreme', '-y', 'bar'], 'a:xy:', ['extreme'])
try_it (['-a', 'foo', '--extr', '-y', 'bar'], 'a:xy:', ['extreme=', 'extra'])

try_it (['-a', 'foo', '-', '-y', '--', 'bar'], 'a:xy:', ['extreme'])
try_it (['-a', 'foo', '-y', '--', 'bar'], 'a:xy:', ['extreme'])
try_it (['-a', 'foo', '-y', 'baz', '--', 'bar'], 'a:xy:', ['extreme'])