Re: POSIX regex performance bug in 7.3 Vs. 7.2

On Tue, 2003-02-04 at 16:59, Tom Lane wrote:
> Neil Conway <neilc(at)samurai(dot)com> writes:
> > Given that this problem isn't a regression, I don't think we need to
> > delay 7.3.2 to fix it (of course, a fix for 7.3.3 and 7.4 is essential,
> > IMHO).
>
> No, I've had to abandon my original thought that it was a localized bug,
> so it's not going to be fixed in 7.3.2.
>
> The real problem is simply that we're up against design limitations of
> the existing regex package, which was never designed for wider-than-8-bit
> character sets. It's been rather crudely hacked while it was in our
> hands (Henry Spencer would probably disown the code if he saw it now ;-))
> so that it sorta kinda does MULTIBYTE, but it's slow and I don't think
> it's complete either.
>
> I'm about to go off and look at whether we can absorb the Tcl regex
> package, which is Spencer's new baby.

Why not PCRE ( http://pcre.sourceforge.net/ ) ?

They claim at least utf-8 (I don't remember other multibyte charsets
being mentioned) support and have a BSD-ish license,
http://pcre.sourceforge.net/license.txt .

--
Hannu Krosing <hannu(at)tm(dot)ee>