def EndParsing(self):
children = self.children
self.if_then_else = False
if any(isinstance(node, (ThenNode, ElseNode)) for node in children):
if (len(children) != 2 or not isinstance(children[0], ThenNode) or
not isinstance(children[1], ElseNode)):
raise exception.UnexpectedChild(
'<if> element must be <if><then>...</then><else>...</else></if>')
self.if_then_else = True
def AddChild(self, child):
'''Adds a child to the list of children of this node, if it is a valid
child for the node.'''
assert isinstance(child, Node)
if (not self._IsValidChild(child) or
self._ContentType() == self._CONTENT_TYPE_CDATA):
explanation = 'invalid child %s for parent %s' % (str(child), self.name)
raise exception.UnexpectedChild(explanation)
self.children.append(child)
self.mixed_content.append(child)
def AddChild(self, child):
'''Adds a child to the list of children of this node, if it is a valid
child for the node.'''
assert isinstance(child, Node)
if (not self._IsValidChild(child)
or self._ContentType() == self._CONTENT_TYPE_CDATA):
if child.parent:
explanation = 'child %s of parent %s' % (child.name,
child.parent.name)
else:
explanation = 'node %s with no parent' % child.name
raise exception.UnexpectedChild(explanation)
self.children.append(child)
self.mixed_content.append(child)
