5 Commits

Author	SHA1	Message	Date
Serhiy Storchaka	b305c69d10	gh-106508: Improve debugging of the _sre module (GH-106509) ... Now the VERBOSE macro can control tracing on per-pattern basis: * 0 -- disabled * 1 -- only if the DEBUG flag set * 2 -- always	2023-07-08 18:00:39 +03:00
Serhiy Storchaka	75a6fadf36	gh-91524: Speed up the regular expression substitution (#91525) ... Functions re.sub() and re.subn() and corresponding re.Pattern methods are now 2-3 times faster for replacement strings containing group references. Closes #91524 Primarily authored by serhiy-storchaka Serhiy Storchaka Minor-cleanups-by: Gregory P. Smith [Google] <greg@krypto.org>	2022-10-23 15:57:30 -07:00
Gregory P. Smith	4beee0c7b0	gh-91404: Revert "bpo-23689: re module, fix memory leak when a match is terminated by a signal or allocation failure (GH-32283) (#93882) ... 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.	2022-06-17 01:19:44 -07:00
Ma Lin	a29f858124	bpo-47256: Increasing the depth of backtracking in RE (GH-32411) ... Limit the maximum capturing group to 2**30-1 on 64-bit platforms (it was 2**31-1). No change on 32-bit platforms (2**28-1). It allows to reduce the size of SRE(match_context): - On 32 bit platform: 36 bytes, no change. (msvc2022) - On 64 bit platform: 72 bytes -> 56 bytes. (msvc2022/gcc9.4) which leads to increasing the depth of backtracking.	2022-04-18 16:50:40 +03:00
Serhiy Storchaka	1578f06c1c	bpo-47152: Move sources of the _sre module into a subdirectory (GH-32290)	2022-04-04 10:53:26 +03:00