def Element(tag, attrib={}, *children, **extra):
""" Element(tag (,attrdict)? (,subelement|string)* ) -> Element """
if isinstance(attrib, dict):
attrib = attrib.copy()
else:
children = (attrib,) + children
attrib = {}
attrib.update(extra)
element = basefactory(tag, attrib)
prevelem = None
for arg in children:
if iselement(arg):
element.append(arg)
prevelem = arg
else:
if isinstance(arg, basestring):
if prevelem is None:
element.text = (element.text or '') + arg
else:
prevelem.tail = (prevelem.tail or '') + arg
else:
try:
it = iter(arg)
except:
raise TypeError, "argument type to Element"
for item in it:
if not iselement(item):
raise TypeError, "invalid argument type to Element"
element.append(item)
return element
def is_element_node(node, uri = None, name = None):
if not iselement(node):
return False
if uri is None and name is None:
return True
element_uri, element_name = get_expanded_name(node)
if uri != element_uri:
return False
return name is None or name == element_name
def is_node_set(x):
return isinstance(x, (list, tuple)) or iselement(x)
