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Date:      Fri, 17 Sep 2004 16:06:20 -0700
From:      Sean Chittenden <chitt@speakeasy.net>
To:        des@des.no (=?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?=)
Cc:        freebsd-arch@freebsd.org
Subject:   Re: diff(1)
Message-ID:  <2FE38EA4-08FE-11D9-A03E-000A95C705DC@speakeasy.net>
In-Reply-To: <xzp1xh0a8wt.fsf@dwp.des.no>
References:  <16715.4611.108597.354107@piglet.timing.com> <20040917.130549.22012205.imp@bsdimp.com> <20040917191240.GR36708@green.homeunix.org> <xzphdpwn04v.fsf@dwp.des.no> <20040917200345.GT36708@green.homeunix.org> <xzp1xh0a8wt.fsf@dwp.des.no>

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> I don't know how much they've changed it, but I do know that it still
> uses whichever regexp engine you happen to have in libc.  In our case,
> that means good old Henry Spencer.  Last I talked to him, he was going
> to release a new, improved, and much faster regexp engine, but that
> was years ago and I still haven't seen anything come out of it.

Actually, that's not quite correct.  Spencer's latest regexp(3) was 
integrated into PostgreSQL 7.4 to provide wide-byte regexp support 
(released on 2003-11-17).  Last I checked, it was being used regularly 
and with good success as it's gotten a good ten months of production 
use.  :)

 From the PostgreSQL 7.4 release notes:

	"Faster and more powerful regular expression code

	"The entire regular expression module has been replaced with a  new 
version by Henry Spencer, originally written for Tcl. The  code greatly 
improves performance and supports several flavors  of regular 
expressions."

-sc

-- 
Sean Chittenden



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