def test_many1(self):
xs = t.Many1(t.Exactly("x"))
self.assertEqual(writeBytecode(xs),
[t.Match('x'),
t.Choice(3),
t.Match('x'),
t.Commit(-2)])
def test_sequence(self):
x = t.Exactly("x")
y = t.Exactly("y")
z = t.And([x, y])
self.assertEqual(writeBytecode(z),
[t.Match('x'),
t.Match('y')])
def test_grammar(self):
r1 = t.Rule("foo", t.Exactly("x"))
r2 = t.Rule("baz", t.Exactly("y"))
x = t.Grammar("BuilderTest", False, [r1, r2])
g = writeBytecodeGrammar(x)
self.assertEqual(sorted(g.keys()), ['baz', 'foo'])
self.assertEqual(g['foo'], [t.Match('x')])
self.assertEqual(g['baz'], [t.Match('y')])
def test_doubleOr(self):
xy = t.Or([t.Exactly("x"),
t.Exactly("y")])
self.assertEqual(writeBytecode(xy),
[t.Choice(3),
t.Match('x'),
t.Commit(2),
t.Match('y')])
def test_optional(self):
x = t.Optional(t.Exactly("x"))
self.assertEqual(writeBytecode(x),
[t.Choice(3),
t.Match('x'),
t.Commit(2),
t.Python("None")])
def test_not(self):
x = t.Not(t.Exactly("x"))
self.assertEqual(writeBytecode(x),
[t.Choice(4),
t.Match('x'),
t.Commit(1),
t.Fail()])
def test_repeat(self):
x = t.Repeat(3, 4, t.Exactly('x'))
self.assertEqual(writeBytecode(x),
[t.Python("3"),
t.Push(),
t.Python("4"),
t.Push(),
t.RepeatChoice(3),
t.Match('x'),
t.Commit(-2)])
def test_lookahead(self):
x = t.Lookahead(t.Exactly("x"))
self.assertEqual(writeBytecode(x),
[t.Choice(7),
t.Choice(4),
t.Match('x'),
t.Commit(1),
t.Fail(),
t.Commit(1),
t.Fail()])
def test_exactly(self):
x = t.Exactly("a")
self.assertEqual(writeBytecode(x), [t.Match("a")])
def test_consumedby(self):
x = t.ConsumedBy(t.Exactly('x'))
self.assertEqual(
writeBytecode(x),
[t.StartSlice(), t.Match('x'),
t.EndSlice()])
def test_rule(self):
x = t.Rule("foo", t.Exactly("x"))
k, v = writeBytecodeRule(x)
self.assertEqual(k, "foo")
self.assertEqual(v, [t.Match('x')])
def test_listpattern(self):
x = t.List(t.Exactly("x"))
self.assertEqual(
writeBytecode(x),
[t.Descend(), t.Match('x'), t.Ascend()])
def test_bind(self):
x = t.Exactly("x")
b = t.Bind("var", x)
self.assertEqual(writeBytecode(b), [t.Match('x'), t.Bind('var')])
def generate_Exactly(self, out, literal, debugname=None):
out.emit(t.Match(literal.data))
