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bpo-30285: Optimize case-insensitive matching and searching (#1482)

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of regular expressions.
This commit is contained in:
Serhiy Storchaka 2017-05-09 23:37:14 +03:00 • committed by GitHub
parent f93234bb8a
commit 6d336a0279
6 changed files with 215 additions and 70 deletions
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9
Lib/test/test_re.py
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@ -891,15 +891,24 @@ class ReTests(unittest.TestCase):
lo = ord(c.lower())
self.assertEqual(_sre.ascii_tolower(i), lo)
self.assertEqual(_sre.unicode_tolower(i), lo)
iscased = c in string.ascii_letters
self.assertEqual(_sre.ascii_iscased(i), iscased)
self.assertEqual(_sre.unicode_iscased(i), iscased)
for i in list(range(128, 0x1000)) + [0x10400, 0x10428]:
c = chr(i)
self.assertEqual(_sre.ascii_tolower(i), i)
if i != 0x0130:
self.assertEqual(_sre.unicode_tolower(i), ord(c.lower()))
iscased = c != c.lower() or c != c.upper()
self.assertFalse(_sre.ascii_iscased(i))
self.assertEqual(_sre.unicode_iscased(i),
c != c.lower() or c != c.upper())
self.assertEqual(_sre.ascii_tolower(0x0130), 0x0130)
self.assertEqual(_sre.unicode_tolower(0x0130), ord('i'))
self.assertFalse(_sre.ascii_iscased(0x0130))
self.assertTrue(_sre.unicode_iscased(0x0130))
def test_not_literal(self):
self.assertEqual(re.search(r"\s([^a])", " b").group(1), "b")