In perl.git, the branch smoke-me/fix_129903_129897 has been created
<http://perl5.git.perl.org/perl.git/commitdiff/527970e390bc88654b67b157f7c7b609ef06ae0c?hp=0000000000000000000000000000000000000000>
at 527970e390bc88654b67b157f7c7b609ef06ae0c (commit)
- Log -----------------------------------------------------------------
commit 527970e390bc88654b67b157f7c7b609ef06ae0c
Author: Yves Orton <demer...@gmail.com>
Date: Tue Oct 18 13:11:49 2016 +0200
regexec.c: fix #129903: forbid empty pattern in regex code block
PL_curpm provides access to the data needed to implement
the regex magic vars like $1 and $&. These vars are defined
to reference the last successfully matched pattern, or when
in regex code blocks (?{ ... }) and (??{ ... }), they
should refer to the currently executing pattern.
Unfortunately this collides with its use to implement the
empty pattern special behavior, which requires /just/
"the last successfully matched pattern" everwhere.
This meant that a pattern match like /(?{ s!!! })/ will
infinitely recurse. Fixing this would be difficult, on
the other hand detecting it is not, so we can convert
the infinite recursion/stack overflow into a normal
exception.
M pod/perldiag.pod
M pp_ctl.c
M pp_hot.c
commit 4a25f596dc0534de8441cd24bd1d6c374c3d44b9
Author: Yves Orton <demer...@gmail.com>
Date: Mon Oct 17 23:13:44 2016 +0200
regexec.c: add comment and add a test
The test is from the existing comment.
M regexec.c
M t/re/re_tests
commit 65cfc2edba7ad3e195b042425a67185eb50c1c24
Author: Yves Orton <demer...@gmail.com>
Date: Mon Oct 17 23:13:16 2016 +0200
regexec.c: fixup annoying unbalanced whitespace
M regexec.c
commit b0be4b4f498cbda98e0813b144508356b9d57ecc
Author: Yves Orton <demer...@gmail.com>
Date: Mon Oct 17 23:12:24 2016 +0200
regexec.c: in debug fixup indents and TRIE/BUFFER debug output
M embed.fnc
M embed.h
M proto.h
M regexec.c
commit c6dcf87eeb14d6d8f5ddb012a7169bc253212292
Author: Yves Orton <demer...@gmail.com>
Date: Mon Oct 17 23:10:10 2016 +0200
regexec.c: in debug show whether TRIE nodes have a jump table
M regcomp.c
commit 5dc1331ce86ee5ff3925a796e496c9e973218397
Author: Yves Orton <demer...@gmail.com>
Date: Mon Oct 17 23:09:11 2016 +0200
regexec.c: fix perl #129897: trie short circuit breaks capture buffers
There is an optimisation when a trie matches only one thing
which causes it to fall through to the following code without
setting up a stack unwind frame. This breaks if we are using
a trie jump table where we might change state that will need
to be unwound on failure.
M regexec.c
M t/re/re_tests
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