def test_grammar_choice_mismatch(self):
grammar = Grammar(Choice(Sequence('NUMBER', 'WORD'), 'WORD'))
datas = [([('NUMBER', '1', 5)], -1),
([('NUMBER', '1', 5), ('NUMBER', '2', 7)], 7)]
self.parse_and_assert_mismatch(grammar, datas)
def test_grammar_choice(self):
grammar = Grammar(Choice('NUMBER', 'WORD'))
datas = [
(
[('WORD', 'm')],
'm'
),
(
[('NUMBER', '5')],
'5'
)
]
self.parse_and_assert_tree(grammar, datas)
def grammar(self):
return Choice(Sequence('NUMBER', 'WORD'), 'WORD')