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########################################################################
#
# File Name: CopyElement.py
#
#
"""
Implementation of the XSLT Spec copy stylesheet element.
WWW: http://4suite.com/4XSLT e-mail: support@4suite.com
Copyright (c) 1999-2000 FourThought Inc, USA. All Rights Reserved.
See http://4suite.com/COPYRIGHT for license and copyright information
"""
import string
from xml.dom import EMPTY_NAMESPACE
import xml.dom.ext
from xml.dom import Node, XMLNS_NAMESPACE
import xml.xslt
from xml.xslt import XsltElement, XsltException, Error
from xml.xpath import CoreFunctions, Util
class CopyElement(XsltElement):
legalAttrs = ('use-attribute-sets',)
def __init__(self, doc, uri=xml.xslt.XSL_NAMESPACE, localName='copy',
prefix='xsl', baseUri=''):
XsltElement.__init__(self, doc, uri, localName, prefix, baseUri)
def setup(self):
self.__dict__['_useAttributeSets'] = string.splitfields(self.getAttributeNS(EMPTY_NAMESPACE, 'use-attribute-sets'))
self.__dict__['_nss'] = xml.dom.ext.GetAllNs(self)
return
def instantiate(self, context, processor):
origState = context.copy()
context.setNamespaces(self._nss)
node = context.node
if node.nodeType == Node.TEXT_NODE:
processor.writers[-1].text(node.data)
elif node.nodeType == Node.ELEMENT_NODE:
#FIXME: Use proper pysax AttributeList objects
processor.writers[-1].startElement(node.nodeName,
node.namespaceURI)
for attr_set_name in self._useAttributeSets:
split_name = Util.ExpandQName(attr_set_name,
namespaces=context.processorNss)
try:
attr_set = processor.attributeSets[split_name]
except KeyError:
raise XsltException(Error.UNDEFINED_ATTRIBUTE_SET, attr_set_name)
attr_set.use(context, processor)
for child in self.childNodes:
context = child.instantiate(context, processor)[0]
processor.writers[-1].endElement(node.nodeName)
elif node.nodeType == Node.DOCUMENT_NODE:
for child in self.childNodes:
context = child.instantiate(context, processor)[0]
elif node.nodeType == Node.ATTRIBUTE_NODE:
if node.namespaceURI == XMLNS_NAMESPACE:
nodeName = 'xmlns' + (node.localName and ':' + node.localName)
processor.writers[-1].attribute(nodeName,
node.nodeValue,
node.namespaceURI)
else:
processor.writers[-1].attribute(node.nodeName,
node.nodeValue,
node.namespaceURI)
elif node.nodeType == Node.PROCESSING_INSTRUCTION_NODE:
processor.writers[-1].processingInstruction(node.target, node.data)
elif node.nodeType == Node.COMMENT_NODE:
processor.writers[-1].comment(node.data)
else:
raise Exception("Unknown Node Type %d" % node.nodeType)
context.set(origState)
return (context,)
def __getinitargs__(self):
return (None, self.namespaceURI, self.localName, self.prefix,
self.baseUri)
def __getstate__(self):
base_state = XsltElement.__getstate__(self)
new_state = (base_state, self._nss, self._useAttributeSets)
return new_state
def __setstate__(self, state):
XsltElement.__setstate__(self, state[0])
self._nss = state[1]
self._useAttributeSets = state[2]
return
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