[2.7] bpo-35859: re module, fix four bugs about capturing groups (GH-11756) #12134
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Show the wrong behaviors before this fix.
need to reset capturing groups between two SRE_MATCH callings in loops
MARK_PUSH(lastmark) macro didn't protect MARK-0 if it was the only available mark.
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See PR 12427 |
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Fix wrong capturing groups in rare cases.
SRE_SEARCH()MARK_PUSH(lastmark)didn't protectMARK 0if it was the only available markJUMP_MIN_UNTIL_3needsLASTMARK_SAVE() and MARK_PUSH()JUMP_ASSERT_NOTneedsLASTMARK_SAVE() and MARK_PUSH()https://bugs.python.org/issue35859