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Date: Sun, 21 Feb 2016 11:42:35 +0100
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Subject: RE: [PHP-DEV] PCRE jit bug with UTF-8 and lookbehind assertion
From: anatol.php@belski.net ("Anatol Belski")



> -----Original Message-----
> From: =C3=81ngel Gonz=C3=A1lez [mailto:keisial@gmail.com]
> Sent: Sunday, February 21, 2016 1:27 AM
> To: Anatol Belski <anatol.php@belski.net>
> Cc: 'Christian Schneider' <cschneid@cschneid.com>; 'PHP internals'
> <internals@lists.php.net>
> Subject: Re: [PHP-DEV] PCRE jit bug with UTF-8 and lookbehind =
assertion
>=20
> On 19/02/16 09:20, Anatol Belski wrote:
> > Could you please write back, what is the out difference between =
those
> > two commands? Thanks. Anatol
> In the first case, it correctly outputs =C2=ABx=C2=B011=C2=BB (78 c2 =
b0 7a). With jit enabled it
> produces =C2=ABx z=C2=BB (78 c2 7a). That is, it is only outputting =
the lower byte of the utf-8
> encoding of the U+00B0 character Tested on PHP 7.0.3 using the system =
libpcre
> 8.38
>=20
Were you putting the snippets into a file or testing on the console? I =
had an issue while testing this on the console, that some chars was =
partially swallowed by terminal (which was a utf-8 terminal). When =
putting into a file, the output is same for both - "x=C2=B0z". Please =
see also the continued discussion in the original ticket =
https://bugs.exim.org/show_bug.cgi?id=3D1189 . The offsets delivered by =
PCRE also seem to be correct,  and valgrind doesn't find anything. It =
were great if you could confirm these insights.

Thanks

Anatol