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author | vitalyisaev <vitalyisaev@ydb.tech> | 2023-11-30 13:26:22 +0300 |
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committer | vitalyisaev <vitalyisaev@ydb.tech> | 2023-11-30 15:44:45 +0300 |
commit | 0a98fece5a9b54f16afeb3a94b3eb3105e9c3962 (patch) | |
tree | 291d72dbd7e9865399f668c84d11ed86fb190bbf /contrib/python/pyre2/py3/tests/test_emptygroups.txt | |
parent | cb2c8d75065e5b3c47094067cb4aa407d4813298 (diff) | |
download | ydb-0a98fece5a9b54f16afeb3a94b3eb3105e9c3962.tar.gz |
YQ Connector:Use docker-compose in integrational tests
Diffstat (limited to 'contrib/python/pyre2/py3/tests/test_emptygroups.txt')
-rw-r--r-- | contrib/python/pyre2/py3/tests/test_emptygroups.txt | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/contrib/python/pyre2/py3/tests/test_emptygroups.txt b/contrib/python/pyre2/py3/tests/test_emptygroups.txt new file mode 100644 index 0000000000..424c8ba25e --- /dev/null +++ b/contrib/python/pyre2/py3/tests/test_emptygroups.txt @@ -0,0 +1,36 @@ +Empty/unused groups +=================== + + >>> import re + >>> import re2 + >>> re2.set_fallback_notification(re2.FALLBACK_EXCEPTION) + +Unused vs. empty group: + + >>> re.search( '(foo)?((.*).)(bar)?', 'a').groups() + (None, 'a', '', None) + >>> re2.search('(foo)?((.*).)(bar)?', 'a').groups() + (None, 'a', '', None) + + >>> re.search(r'((.*)?.)', 'a').groups() + ('a', '') + >>> re2.search(r'((.*)?.)', 'a').groups() + ('a', '') + >>> re.search(r'((.*)+.)', 'a').groups() + ('a', '') + >>> re2.search(r'((.*)+.)', 'a').groups() + ('a', '') + +The following show different behavior for re and re2: + + >>> re.search(r'((.*)*.)', 'a').groups() + ('a', '') + >>> re2.search(r'((.*)*.)', 'a').groups() + ('a', None) + + >>> re.search(r'((.*)*.)', 'Hello').groups() + ('Hello', '') + >>> re2.search(r'((.*)*.)', 'Hello').groups() + ('Hello', 'Hell') + + >>> re2.set_fallback_notification(re2.FALLBACK_QUIETLY) |