RE: [PHP-DEV] PCRE jit bug with UTF-8 and lookbehind assertion
| From: | Anatol Belski | Date: | Fri, 19 Feb 2016 09:18:02 +0000 |
| Subject: | RE: [PHP-DEV] PCRE jit bug with UTF-8 and lookbehind assertion | ||
| References: | 1 2 3 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-91315@lists.php.net to get a copy of this message | ||
Christian,
> -----Original Message-----
> From: Anatol Belski [mailto:anatol.php@belski.net]
> Sent: Friday, February 19, 2016 9:20 AM
> To: 'Christian Schneider' <cschneid@cschneid.com>; 'PHP internals'
> <internals@lists.php.net>
> Subject: RE: [PHP-DEV] PCRE jit bug with UTF-8 and lookbehind assertion
>
> Hi Christian,
>
> > -----Original Message-----
> > From: Anatol Belski [mailto:anatol.php@belski.net]
> > Sent: Thursday, February 18, 2016 9:16 AM
> > To: 'Christian Schneider' <cschneid@cschneid.com>; 'PHP
> > internals'
> > <internals@lists.php.net>
> > Subject: RE: [PHP-DEV] PCRE jit bug with UTF-8 and lookbehind
> > assertion
> >
> > Hi Christian,
> >
> > > -----Original Message-----
> > > From: Christian Schneider [mailto:cschneid@cschneid.com]
> > > Sent: Wednesday, February 17, 2016 2:07 PM
> > > To: PHP internals <internals@lists.php.net>
> > > Subject: [PHP-DEV] PCRE jit bug with UTF-8 and lookbehind assertion
> > >
> > > Hi there,
> > > we just ran into a version of the bug "JIT bug with lookbehind assertion":
> > > https://bugs.exim.org/show_bug.cgi?id=1189
> > >
> > > To reproduce it you can use
> > > php -n -r 'ini_set("pcre.jit", 0); echo
> > > preg_replace("/\b(11|21|41)\b/u", "z",
> > > "x°11\n");'
> > > vs.
> > > php -n -r 'ini_set("pcre.jit", 1); echo
> > > preg_replace("/\b(11|21|41)\b/u", "z",
> > > "x°11\n");'
> > >
> > Seems valgrind doesn't detect any issues with this code. Using latest
> > 7.0.4-dev code with PCRE 8.38, valgrind 3.10.0 on Jessie. Is there
> > something else I could miss?
> >
> Could you please write back, what is the out difference between those two
> commands?
>
One more question - are you using (the bundled or external) PCRE 8.38?
Thanks
Anatol