def instantiate(self, context):
context.namespaces = self.namespaces
targets = self.select.evaluate_as_nodeset(context)
if not targets:
raise XUpdateError(XUpdateError.INVALID_SELECT)
for target in targets:
if target.xml_type == tree.element.xml_type:
context.push_tree_writer(target.xml_base)
for primitive in self:
primitive.instantiate(context)
writer = context.pop_writer()
tr = writer.get_result()
while target.xml_first_child:
target.xml_remove(target.xml_first_child)
while tr.xml_first_child:
target.xml_append(tr.xml_first_child)
elif target.xml_type in (tree.attribute.xml_type,
tree.text.xml_type,
tree.comment.xml_type,
tree.processing_instruction.xml_type):
context.push_string_writer(errors=False)
for primitive in self:
primitive.instantiate(context)
writer = context.pop_writer()
value = writer.get_result()
if not value and target.xml_type == tree.text.xml_type:
target.xml_parent.xml_remove(target)
else:
target.xml_value = value
return
def instantiate(self, context):
context.push_string_writer(errors=False)
for primitive in self:
primitive.instantiate(context)
writer = context.pop_writer()
name = writer.get_result()
prefix, local = splitqname(name)
if prefix:
namespace = self.namespaces[prefix]
else:
namespace = None
context.namespaces = self.namespaces
targets = self.select.evaluate_as_nodeset(context)
if not targets:
raise XUpdateError(XUpdateError.INVALID_SELECT)
for target in targets:
parent = target.xml_parent
if target.xml_type == tree.attribute.xml_type:
parent.xml_attributes[namespace, name] = target.xml_value
elif target.xml_type == tree.processing_instruction.xml_type:
pi = tree.processing_instruction(name, target.xml_data)
parent.xml_replace-child(pi, target)
elif target.xml_type == tree.element.xml_type:
#FIXME: Use regular constructor. No more DOM factory
element = tree.element(namespace, name)
# Copy any existing attributes to the newly created element
if target.xml_attributes:
for (ns, qname), value in target.xml_attributes.iteritems():
element.xml_attributes[ns, qname] = value
# Now copy any children as well
while target.xml_first_child:
element.xml_append(target.xml_first_child)
parent.xml_replace(target, element)
return
def instantiate(self, context):
if self.select:
context.namespaces = self.namespaces
value = self.select.evaluate(context)
else:
context.push_string_writer(errors=False)
for primitive in self:
primitive.instantiate(context)
writer = context.pop_writer()
value = writer.get_result()
context.variables[self.name] = value
return
