Branch: refs/heads/yves/fix_16952
Home: https://github.com/Perl/perl5
Commit: e3c998d29eb09073b4e55ed7fa79ceba1ed92602
https://github.com/Perl/perl5/commit/e3c998d29eb09073b4e55ed7fa79ceba1ed92602
Author: Yves Orton <[email protected]>
Date: 2026-07-03 (Fri, 03 Jul 2026)
Changed paths:
M regexec.c
M regexp.h
M t/re/pat_re_eval.t
Log Message:
-----------
regexec.c - preserve COW-backed subbeg state across /(?{})/
Fix the capture-string save/restore bug when /(?{})/ temporarily
retargets RXp_SUBBEG to the current string. We must preserve both
heap-copied subbeg state and saved_copy-backed COW state so that cleanup
restores the original pointer values and ownership flags consistently.
Add regressions for the minimal cases discussed in GH #16952 and its
migrated RT ticket RT #134026, and for the later duplicate report
GH #24338: the stale capture case, the direct fetch of $&, and the
substitution form that used to assert on debugging builds.
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