def test_backslash_escapes(self):
self.assertListEqual(list(iterparse_character_subset('\\{')),
[ord('{')])
self.assertListEqual(list(iterparse_character_subset('\\(')),
[ord('(')])
self.assertListEqual(list(iterparse_character_subset('\\a')),
[ord('\\'), ord('a')])
def test_bad_character_range(self):
with self.assertRaises(RegexError) as ctx:
list(iterparse_character_subset('9-2'))
self.assertIn('bad character range', str(ctx.exception))
with self.assertRaises(RegexError) as ctx:
list(iterparse_character_subset('2-\\s'))
self.assertIn('bad character range', str(ctx.exception))
def test_backslash_character(self):
self.assertListEqual(list(iterparse_character_subset('\\')), [ord('\\')])
self.assertListEqual(list(iterparse_character_subset('2-\\')),
[(ord('2'), ord('\\') + 1)])
self.assertListEqual(list(iterparse_character_subset('2-\\\\')),
[(ord('2'), ord('\\') + 1), ord('\\')])
self.assertListEqual(list(iterparse_character_subset('2-\\x')),
[(ord('2'), ord('\\') + 1), ord('x')])
self.assertListEqual(list(iterparse_character_subset('2-\\a-x')),
[(ord('2'), ord('\\') + 1), (ord('a'), ord('x') + 1)])
self.assertListEqual(list(iterparse_character_subset('2-\\{')),
[(ord('2'), ord('{') + 1)])
def test_square_brackets(self):
self.assertListEqual(list(iterparse_character_subset('\\[')), [ord('[')])
self.assertListEqual(list(iterparse_character_subset('[')), [ord('[')])
with self.assertRaises(RegexError) as ctx:
list(iterparse_character_subset('[ '))
self.assertIn("bad character '['", str(ctx.exception))
with self.assertRaises(RegexError) as ctx:
list(iterparse_character_subset('x['))
self.assertIn("bad character '['", str(ctx.exception))
self.assertListEqual(list(iterparse_character_subset('\\]')), [ord(']')])
self.assertListEqual(list(iterparse_character_subset(']')), [ord(']')])
with self.assertRaises(RegexError) as ctx:
list(iterparse_character_subset('].'))
self.assertIn("bad character ']'", str(ctx.exception))
with self.assertRaises(RegexError) as ctx:
list(iterparse_character_subset('8['))
self.assertIn("bad character '['", str(ctx.exception))
def test_expand_ranges(self):
self.assertListEqual(
list(iterparse_character_subset('a-e', expand_ranges=True)),
[ord('a'), ord('b'),
ord('c'), ord('d'),
ord('e')])
def test_parse_multiple_ranges(self):
self.assertListEqual(
list(iterparse_character_subset('a-c-1-4x-z-7-9')),
[(ord('a'), ord('c') + 1),
ord('-'), (ord('1'), ord('4') + 1), (ord('x'), ord('z') + 1),
ord('-'), (55, 58)])
def test_character_range(self):
self.assertListEqual(list(iterparse_character_subset('A-z')),
[(ord('A'), ord('z') + 1)])
self.assertListEqual(list(iterparse_character_subset('\\[-z')),
[(ord('['), ord('z') + 1)])