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| author | Dominic Dunlop <domo@computer.org> | 2006-04-02 23:13:59 +0200 |
|---|---|---|
| committer | Rafael Garcia-Suarez <rgarciasuarez@gmail.com> | 2006-04-03 08:30:27 +0000 |
| commit | 8988a1bb3fb8fac6b97385be1a1d8b9945b1e29e (patch) | |
| tree | 010ab36672089d9fed4afdfdf009b2242d93b7d2 /pod | |
| parent | c99ffe5e27f50044d8e283a2c6c45b050a7bcce0 (diff) | |
| download | perl-8988a1bb3fb8fac6b97385be1a1d8b9945b1e29e.tar.gz | |
Document that the regexp engine is not currently reentrant
Subject: Re: [perl #33936] segment fault when using split() in regexp with (??{...})
Message-Id: <AD104FE7-2BD6-49B6-A845-46458179A4B1@computer.org>
p4raw-id: //depot/perl@27697
Diffstat (limited to 'pod')
| -rw-r--r-- | pod/perlre.pod | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/pod/perlre.pod b/pod/perlre.pod index 32a7e6fcf7..04c92d5ea2 100644 --- a/pod/perlre.pod +++ b/pod/perlre.pod @@ -694,6 +694,10 @@ so you should only do so if you are also using taint checking. Better yet, use the carefully constrained evaluation within a Safe compartment. See L<perlsec> for details about both these mechanisms. +Because perl's regex engine is not currently re-entrant, interpolated +code may not invoke the regex engine either directly with C<m//> or C<s///>), +or indirectly with functions such as C<split>. + =item C<(??{ code })> X<(??{})> X<regex, postponed> X<regexp, postponed> X<regular expression, postponed> @@ -724,6 +728,10 @@ The following pattern matches a parenthesized group: \) }x; +Because perl's regex engine is not currently re-entrant, delayed +code may not invoke the regex engine either directly with C<m//> or C<s///>), +or indirectly with functions such as C<split>. + =item C<< (?>pattern) >> X<backtrack> X<backtracking> |