def test_char(self):
p = Parser()
p.rule(Rule('one', [], parser.text_match(r'[[0-9]]')))
p.rule(Rule('two', [], parser.text_match(r'[[^0-9]]')))
p.rule(Rule('three', [], parser.text_match(r'[[\t\n]]')))
self.parser = p
self.p_fail("one", "c")
self.p_ok("one", "3")
self.p_ok("two", "c")
self.p_fail("two", "3")
self.p_ok("three", "\t")
self.p_ok("three", "\n")
self.p_fail("three", r"\n")
def test_call(self):
p = Parser()
p.rule(Native('add', [Param('a'), Param('b')], lambda a, b: a + b))
p.rule(Rule('test', [], parser.text_match(r'add(1, 2)')))
self.parser = p
self.p_ok("test", "", 3)
def test_digit_question(self):
p = Parser()
p.rule(Rule('digits', [], parser.text_match(r'[[0-9]]?')))
self.parser = p
self.p_ok("digits", "")
self.p_ok("digits", "1")
self.p_fail("digits", "12")
def test_choice(self):
p = Parser()
p.rule(Rule('test', [], parser.text_match(r'$"foo" | $"bar"')))
self.parser = p
self.p_ok("test", "foo", "foo")
self.p_ok("test", "bar", "bar")
self.p_fail("test", "boo")
self.p_fail("test", "baz")
def test_string(self):
p = Parser()
p.rule(Rule('test', [], parser.text_match(r'$"foo"')))
self.parser = p
self.p_ok("test", "foo")
self.p_fail("test", "fo")
self.p_fail("test", "fooo")
self.p_fail("test", "bar")
def test_digit_star(self):
p = Parser()
p.rule(Rule('digits', [], parser.text_match(r'[[0-9]]*')))
self.parser = p
self.p_ok("digits", "")
self.p_ok("digits", "1")
self.p_ok("digits", "12")
self.p_ok("digits", "1234567890")
def test_list_append(self):
p = Parser()
p.rule(
Rule(
'test', [],
parser.text_match(r'e = []; e << "a"; e << "b"; e << "c"; e')))
self.parser = p
self.p_ok("test", "", ['a', 'b', 'c'])
def test_sequence(self):
p = Parser()
p.rule(Rule('test', [], parser.text_match(r'[[a]];[[b]]+')))
self.parser = p
self.p_fail("test", "a")
self.p_ok("test", "ab")
self.p_fail("test", "aa")
self.p_fail("test", "aba")
self.p_ok("test", "abb")
def test_grouping(self):
p = Parser()
p.rule(Rule('test', [], parser.text_match(r'([[a]];[[b]])+')))
self.parser = p
self.p_fail("test", "a")
self.p_ok("test", "ab")
self.p_fail("test", "aa")
self.p_fail("test", "aba")
self.p_fail("test", "abb")
self.p_ok("test", "abab")
self.p_ok("test", "ababab")
def rule(name, body):
p.rule(Rule(name, [], ritual.phase0.parser.text_match(body)))
def test_assign(self):
p = Parser()
p.rule(
Rule('test', [],
parser.text_match(r'"("; c = [[a-zA-Z_]]; ")"; c')))
self.parser = p
def test_list_literal(self):
p = Parser()
p.rule(Rule('test', [], parser.text_match(r'["a", "b", "c"]')))
self.parser = p
self.p_ok("test", "", ['a', 'b', 'c'])