From mboxrd@z Thu Jan  1 00:00:00 1970
Path: main.gmane.org!not-for-mail
From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Info-search-whitespace
Date: Fri, 19 Nov 2004 15:04:19 -0500
Message-ID: <E1CVEzT-00019W-L7@fencepost.gnu.org>
References: <v9ekiws17i.fsf@marauder.physik.uni-ulm.de>
	<878y942l8h.fsf-monnier+emacs@gnu.org>
	<20041114232600.GA12968@fencepost>
	<E1CU6Vv-0002Nr-T2@fencepost.gnu.org>
	<jwvpt2d68df.fsf-monnier+emacs@gnu.org>
	<E1CUcSQ-0004q6-PO@fencepost.gnu.org>
	<jwvk6sjrts5.fsf-monnier+emacs@gnu.org>
	<20041118170700.GG5243@xts.gnuu.de>
	<jwvr7mrqbka.fsf-monnier+emacs@gnu.org> <87fz36h90m.fsf_-_@jurta.org>
	<873bz6l99n.fsf-monnier+emacs@gnu.org>
Reply-To: rms@gnu.org
NNTP-Posting-Host: deer.gmane.org
X-Trace: sea.gmane.org 1100894895 9380 80.91.229.6 (19 Nov 2004 20:08:15 GMT)
X-Complaints-To: usenet@sea.gmane.org
NNTP-Posting-Date: Fri, 19 Nov 2004 20:08:15 +0000 (UTC)
Cc: juri@jurta.org, emacs-devel@gnu.org
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Nov 19 21:08:10 2004
Return-path: <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>
Original-Received: from lists.gnu.org ([199.232.76.165])
	by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian))
	id 1CVF3C-00045K-00
	for <ged-emacs-devel@m.gmane.org>; Fri, 19 Nov 2004 21:08:10 +0100
Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.33)
	id 1CVFC6-0002GC-PZ
	for ged-emacs-devel@m.gmane.org; Fri, 19 Nov 2004 15:17:22 -0500
Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.33)
	id 1CVFAs-0001Yt-NG
	for emacs-devel@gnu.org; Fri, 19 Nov 2004 15:16:06 -0500
Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.33)
	id 1CVFAn-0001V1-4o
	for emacs-devel@gnu.org; Fri, 19 Nov 2004 15:16:02 -0500
Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.33) id 1CVFAm-0001Tz-Et
	for emacs-devel@gnu.org; Fri, 19 Nov 2004 15:16:00 -0500
Original-Received: from [199.232.76.164] (helo=fencepost.gnu.org)
	by monty-python.gnu.org with esmtp (Exim 4.34) id 1CVF1j-0006z9-M6
	for emacs-devel@gnu.org; Fri, 19 Nov 2004 15:06:39 -0500
Original-Received: from rms by fencepost.gnu.org with local (Exim 4.34)
	id 1CVEzT-00019W-L7; Fri, 19 Nov 2004 15:04:20 -0500
Original-To: Stefan Monnier <monnier@iro.umontreal.ca>
In-reply-to: <873bz6l99n.fsf-monnier+emacs@gnu.org> (message from Stefan
	Monnier on Fri, 19 Nov 2004 00:06:00 -0500)
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "Emacs development discussions." <emacs-devel.gnu.org>
List-Unsubscribe: <http://lists.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/emacs-devel>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <http://lists.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=subscribe>
Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org
Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org
Xref: main.gmane.org gmane.emacs.devel:30105
X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:30105

    Huh!?  The \(?:..\) is actually both useless and harmful here and should be
    removed (if possible).

It isn't useless, since it prevents confusion of back-references to
explicit groups.

I think the only way to make this feature work really right
is to add a regexp feature that substitutes something else 
for bunches of spaces, but does it only when the spaces
are not inside something else.  It was easy to do, so I did it.