Ejemplo n.º 1
0
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
Ejemplo n.º 2
0
 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')
Ejemplo n.º 3
0
 def test_normal(self):
     s = trie_methods.name()
     self.assertIsInstance(s, str)
     self.assertEqual(len(s), 6)
Ejemplo n.º 4
0
 def test_auto(self):
     trie = graph.Graph()
     n = trie_methods.name()
     trie.node(n)
     self.assertIn(n, trie.O)