From owner-freebsd-arch@FreeBSD.ORG  Tue Sep 21 19:44:41 2004
Return-Path: <owner-freebsd-arch@FreeBSD.ORG>
Delivered-To: freebsd-arch@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 027B216A4CE; Tue, 21 Sep 2004 19:44:41 +0000 (GMT)
Received: from smtp2.Stanford.EDU (smtp2.Stanford.EDU [171.67.16.125])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id C44F143D31; Tue, 21 Sep 2004 19:44:40 +0000 (GMT)
	(envelope-from tedu@stanford.edu)
Received: from elaine31.Stanford.EDU (elaine31.Stanford.EDU [171.64.15.106])
	by smtp2.Stanford.EDU (8.12.11/8.12.11) with ESMTP id i8LJib3m020455;
	Tue, 21 Sep 2004 12:44:37 -0700
Date: Tue, 21 Sep 2004 12:44:36 -0700 (PDT)
From: Ted Unangst <tedu@stanford.edu>
To: =?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?= <des@des.no>
In-Reply-To: <xzp1xh0a8wt.fsf@dwp.des.no>
Message-ID: <Pine.GSO.4.44.0409211236540.2870-100000@elaine31.Stanford.EDU>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=ISO-8859-1
Content-Transfer-Encoding: QUOTED-PRINTABLE
cc: freebsd-arch@freebsd.org
Subject: Re: diff(1)
X-BeenThere: freebsd-arch@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussion related to FreeBSD architecture
	<freebsd-arch.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arch>
List-Post: <mailto:freebsd-arch@freebsd.org>
List-Help: <mailto:freebsd-arch-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 21 Sep 2004 19:44:41 -0000

On Fri, 17 Sep 2004, Dag-Erling Sm=F8rgrav wrote:

> 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,

nothing earth-shaking changed.  it avoids regex for simple patterns which
places it roughly in the same speed bracket as gnu grep. (depends on how
many megabytes you're grepping if you'll notice a difference).  plus an
assortment of flags and corner cases which pop up when you make it system
default and lots of people start using it.


--=20