Branch: refs/heads/yves/disable_curlyx_with_eval
Home: https://github.com/Perl/perl5
Commit: ca6efcf3d98c1af754358760ec3dd3019a2f6010
https://github.com/Perl/perl5/commit/ca6efcf3d98c1af754358760ec3dd3019a2f6010
Author: Yves Orton <demer...@gmail.com>
Date: 2023-01-15 (Sun, 15 Jan 2023)
Changed paths:
M regcomp_debug.c
M regcomp_study.c
M t/re/pat_re_eval.t
Log Message:
-----------
regcomp_study.c - disable CURLYX optimizations when EVAL has been seen
anywhere
Historically we disabled CURLYX optimizations when they
*contained* an EVAL, on the assumption that the optimization might
affect how many times, etc, the eval was called. However, this is
also true for CURLYX with evals *afterwards*. If the CURLYN or CURLYM
optimization can prune off the search space, then an eval afterwards
will be affected. An when you take into account GOSUB, it means that
an eval in front might be affected by an optimization after it.
So for now we disable CURLYN and CURLYM in any pattern with an EVAL.
