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Fixed bug #470582, using a modified version of patch #527371,

Browse source 
from Greg Chapman.

* Modules/_sre.c
  (lastmark_restore): New function, implementing algorithm to restore
  a state to a given lastmark. In addition to the similar algorithm used
  in a few places of SRE_MATCH, restore lastindex when restoring lastmark.
  (SRE_MATCH): Replace lastmark inline restoring by lastmark_restore(),
  function. Also include it where missing. In SRE_OP_MARK, set lastindex
  only if i > lastmark.

* Lib/test/re_tests.py
* Lib/test/test_sre.py
  Included regression tests for the fixed bugs.

* Misc/NEWS
  Mention fixes.
This commit is contained in:
Gustavo Niemeyer 2002-11-06 14:06:53 +00:00
parent 3c2c433417
commit 4e7be06a65
4 changed files with 33 additions and 18 deletions
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2
Lib/test/re_tests.py
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@ -646,6 +646,8 @@ xyzabc
(r'a[^>]*?b', 'a>b', FAIL),
# bug 490573: minimizing repeat problem
(r'^a*?$', 'foo', FAIL),
# bug 470582: nested groups problem
(r'^((a)c)?(ab)$', 'ab', SUCCEED, 'g1+"-"+g2+"-"+g3', 'None-None-ab'),
]
try: