#!/usr/bin/env python
################################################################################
#
#  qooxdoo - the new era of web development
#
#  http://qooxdoo.org
#
#  Copyright:
#    2006-2008 1&1 Internet AG, Germany, http://www.1und1.de
#
#  License:
#    LGPL: http://www.gnu.org/licenses/lgpl.html
#    EPL: http://www.eclipse.org/org/documents/epl-v10.php
#    See the LICENSE file in the project's top-level directory for details.
#
#  Authors:
#    * Sebastian Werner (wpbasti)
#    * Andreas Ecker (ecker)
#
################################################################################

##
#<h2>Module Description</h2>
#<pre>
# NAME
#  module.py -- module short description
#
# SYNTAX
#  module.py --help
#
#  or
#
#  import module
#  result = module.func()
#
# DESCRIPTION
#  The module module does blah.
#
# CAVEATS
#
# KNOWN ISSUES
#  There are no known issues.
#</pre>
##

from optparse import *

##                                                                              
# Some nice short description of class Foo
#                                                                               
# @param Super The super-class of Foo
class ExtendAction(Option):
    ACTIONS = Option.ACTIONS + ("extend",)
    STORE_ACTIONS = Option.STORE_ACTIONS + ("extend",)
    TYPED_ACTIONS = Option.TYPED_ACTIONS + ("extend",)

    def take_action(self, action, dest, opt, value, values, parser):
        if action == "extend":
            lvalue = value.split(",")
            while "" in lvalue:
                lvalue.remove("")
            values.ensure_value(dest, []).extend(lvalue)
        else:
            Option.take_action(
                self, action, dest, opt, value, values, parser)