In very rare circumstances the JUMP opcode could be confused with the
argument of the opcode in the "then" part which doesn't end with the
JUMP opcode. This led to incorrect detection of the final JUMP opcode
and incorrect calculation of the size of the subexpression.
NOTE: Changed return value of functions _validate_inner() and
_validate_charset() in Modules/_sre/sre.c. Now they return 0 on success,
-1 on failure, and 1 if the last op is JUMP (which usually is a failure).
Previously they returned 1 on success and 0 on failure.
(cherry picked from commit e9ac890c02)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Revert "bpo-23689: re module, fix memory leak when a match is terminated by a signal or memory allocation failure (GH-32283)"
This reverts commit 6e3eee5c11.
Manual fixups to increase the MAGIC number and to handle conflicts with
a couple of changes that landed after that.
Thanks for reviews by Ma Lin and Serhiy Storchaka.
(cherry picked from commit 4beee0c7b0)
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Revert "bpo-47211: Remove function re.template() and flag re.TEMPLATE (GH-32300)"
This reverts commit b09184bf05.
(cherry picked from commit 16a7e4a0b7)
Co-authored-by: Miro Hrončok <miro@hroncok.cz>
Miss Islington (bot)