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[3.13] gh-101955: Fix SystemError in possesive quantifier with alternative and group (GH-111362) (GH-126962)

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(cherry picked from commit f9c5573ded)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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Miss Islington (bot) 2024-11-18 13:13:08 +01:00 • committed by GitHub
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6
Lib/test/test_re.py
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@ -2641,6 +2641,12 @@ class ReTests(unittest.TestCase):
self.assertEqual(re.match("(?>(?:ab?c){1,3})", "aca").span(), (0, 2))
self.assertEqual(re.match("(?:ab?c){1,3}+", "aca").span(), (0, 2))
def test_bug_gh101955(self):
# Possessive quantifier with nested alternative with capture groups
self.assertEqual(re.match('((x)|y|z)*+', 'xyz').groups(), ('z', 'x'))
self.assertEqual(re.match('((x)|y|z){3}+', 'xyz').groups(), ('z', 'x'))
self.assertEqual(re.match('((x)|y|z){3,}+', 'xyz').groups(), ('z', 'x'))
@unittest.skipIf(multiprocessing is None, 'test requires multiprocessing')
def test_regression_gh94675(self):
pattern = re.compile(r'(?<=[({}])(((//[^\n]*)?[\n])([\000-\040])*)*'