def add_edge(self, source, target, label):
self._G.add_edge(source, target, label=label)
t = penman.Triple(source=source.identifier,
relation=label,
target=target.identifier)
triples = self._triples + [t]
triples = penman.alphanum_order(triples)
self._update_penman_graph(triples)
def replace_node_attribute(self, node, attr, old, new):
node.replace_attribute(attr, old, new)
triples = []
found = False
for t in self._triples:
if t.source == node.identifier and t.relation == attr and t.target == old:
found = True
t = penman.Triple(source=node.identifier, relation=attr, target=new)
triples.append(t)
if not found:
raise KeyError
self._triples = penman.alphanum_order(triples)
def add_node(self, instance):
identifier = instance[0]
assert identifier.isalpha()
if identifier in self.variables():
i = 2
while identifier + str(i) in self.variables():
i += 1
identifier += str(i)
triples = self._triples + [Triple(identifier, 'instance', instance)]
self._triples = penman.alphanum_order(triples)
node = AMRNode(identifier, [('instance', instance)])
self._G.add_node(node)
return node
def add_node_attribute(self, node, attr, value):
node.add_attribute(attr, value)
t = penman.Triple(source=node.identifier, relation=attr, target=value)
self._triples = penman.alphanum_order(self._triples + [t])
def __str__(self):
self._triples = penman.alphanum_order(self._triples)
return amr_codec.encode(self)
