##############################################################################
#
# Zope Public License (ZPL) Version 1.0
# -------------------------------------
#
# Copyright (c) Digital Creations. All rights reserved.
#
# This license has been certified as Open Source(tm).
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions in source code must retain the above copyright
# notice, this list of conditions, and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions, and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# 3. Digital Creations requests that attribution be given to Zope
# in any manner possible. Zope includes a "Powered by Zope"
# button that is installed by default. While it is not a license
# violation to remove this button, it is requested that the
# attribution remain. A significant investment has been put
# into Zope, and this effort will continue if the Zope community
# continues to grow. This is one way to assure that growth.
#
# 4. All advertising materials and documentation mentioning
# features derived from or use of this software must display
# the following acknowledgement:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# In the event that the product being advertised includes an
# intact Zope distribution (with copyright and license included)
# then this clause is waived.
#
# 5. Names associated with Zope or Digital Creations must not be used to
# endorse or promote products derived from this software without
# prior written permission from Digital Creations.
#
# 6. Modified redistributions of any form whatsoever must retain
# the following acknowledgment:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# Intact (re-)distributions of any official Zope release do not
# require an external acknowledgement.
#
# 7. Modifications are encouraged but must be packaged separately as
# patches to official Zope releases. Distributions that do not
# clearly separate the patches from the original work must be clearly
# labeled as unofficial distributions. Modifications which do not
# carry the name Zope may be packaged in any form, as long as they
# conform to all of the clauses above.
#
#
# Disclaimer
#
# THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
# EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#
# This software consists of contributions made by Digital Creations and
# many individuals on behalf of Digital Creations. Specific
# attributions are listed in the accompanying credits file.
#
##############################################################################
"""Provide an apply-like facility that works with any mapping object
"""
def default_call_object(object, args, context):
result=apply(object,args) # Type s<cr> to step into published object.
return result
def default_missing_name(name, context):
raise TypeError, 'argument %s was ommitted' % name
def default_handle_class(klass, context):
if hasattr(klass,'__init__'):
f=klass.__init__.im_func
c=f.func_code
names=c.co_varnames[1:c.co_argcount]
return klass, names, f.func_defaults
else:
return klass, (), ()
def mapply(object, positional=(), keyword={},
debug=None, maybe=None,
missing_name=default_missing_name,
handle_class=default_handle_class,
context=None, bind=0,
):
if hasattr(object,'__bases__'):
f, names, defaults = handle_class(object, context)
else:
f=object
im=0
if hasattr(f, 'im_func'):
im=1
elif not hasattr(f,'func_defaults'):
if hasattr(f, '__call__'):
f=f.__call__
if hasattr(f, 'im_func'):
im=1
elif not hasattr(f,'func_defaults') and maybe: return object
elif maybe: return object
if im:
f=f.im_func
c=f.func_code
defaults=f.func_defaults
names=c.co_varnames[1:c.co_argcount]
else:
defaults=f.func_defaults
c=f.func_code
names=c.co_varnames[:c.co_argcount]
nargs=len(names)
if positional:
positional=list(positional)
if bind and nargs and names[0]=='self':
positional.insert(0, missing_name('self', context))
if len(positional) > nargs: raise TypeError, 'too many arguments'
args=positional
else:
if bind and nargs and names[0]=='self':
args=[missing_name('self', context)]
else:
args=[]
get=keyword.get
nrequired=len(names) - (len(defaults or ()))
for index in range(len(args), len(names)):
name=names[index]
v=get(name, args)
if v is args:
if index < nrequired: v=missing_name(name, context)
else: v=defaults[index-nrequired]
args.append(v)
args=tuple(args)
if debug is not None: return debug(object,args,context)
else: return apply(object,args)
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