def incorporate(pattern, trie):
# incorporate takes a pattern and incorporates it as another branch
# of a preexisting trie.
# if the trie is empty, add a node.
if trie.O == []:
x = trie_methods.name()
trie.node(x)
# set the current node to the root.
x = trie_methods.root(trie)
# iterate through the pattern.
for s in pattern:
# if there is an existing edge matching the symbol, select it.
if trie_methods.edge_exists(s, x, trie):
f = trie_methods.select(s, x, trie)
# update the current node to that edge's codomain.
x = trie.cod[f]
else:
# if there is not an existing edge,
# create an edge with the current symbol.
y = trie_methods.name()
trie.node(y)
e = trie_methods.name()
trie.edge(e, x, y, s)
# update the current node to that edge's codomain.
x = trie.cod[e]
return trie
def auto_name(self):
trie = graph.Graph()
trie.node('A')
trie.node('B')
f = trie_methods.name()
trie.edge(f, 'A', 'B', 't')
self.assertIn(f, trie.A)
self.assertTrue(trie.dom[f] == 'A')
self.assertTrue(trie.cod[f] == 'B')
self.assertTrue(trie.sym[f] == 't')
def test_normal(self):
s = trie_methods.name()
self.assertIsInstance(s, str)
self.assertEqual(len(s), 6)
def test_auto(self):
trie = graph.Graph()
n = trie_methods.name()
trie.node(n)
self.assertIn(n, trie.O)
