[Zope3-checkins] CVS: Zope3/src/zope/app/xml - __init__.py:1.1 field.py:1.1

[Martijn Faassen]

Update of /cvs-repository/Zope3/src/zope/app/xml
In directory cvs.zope.org:/tmp/cvs-serv1105/src/zope/app/xml

Added Files:
	__init__.py field.py 
Log Message:
Add basic XML field implementation.


=== Added File Zope3/src/zope/app/xml/__init__.py ===
# this is a package


=== Added File Zope3/src/zope/app/xml/field.py ===
##############################################################################
#
# Copyright (c) 2002 Zope Corporation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""
$Id: field.py,v 1.1 2003/04/09 09:31:52 faassen Exp $
"""
from zope.app.interfaces.xml.field import IXML
from zope.schema.interfaces import ValidationError
from zope.schema import Field
from xml.parsers.expat import ParserCreate, ExpatError

NotWellFormedXML = u"NotWellFormedXML"

class XML(Field):
    __implements__ = IXML

    # by default XML text is actually in a byte encoding
    _type = str

    def _validate(self, value):
        super(XML, self)._validate(value)
        parser = ParserCreate()
        try:
            parser.Parse(value, True)
        except ExpatError, e:
            raise ValidationError(NotWellFormedXML)