def _tryparseport(node):
if node is None:
return node
port = node.find('portal')
if port is not None:
port = Portal(port.get('file', 'swordcave.map'), int(port.get('x', '0')), int(port.get('y', '0')), PortalType.__dict__[port.get('type', 'Boundary')])
return port
