From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.help Subject: Re: when nothing happens, buffer still marked as modified Date: Wed, 05 Dec 2018 12:58:56 +0200 Message-ID: <83lg548cjz.fsf@gnu.org> References: <86sgzcy9gk.fsf@zoho.eu> <86a7lkxwr7.fsf@zoho.eu> <861s6wxp2j.fsf@zoho.eu> NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1544007452 29778 195.159.176.226 (5 Dec 2018 10:57:32 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 5 Dec 2018 10:57:32 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Dec 05 11:57:28 2018 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gUUru-0007Z3-Kv for geh-help-gnu-emacs@m.gmane.org; Wed, 05 Dec 2018 11:57:26 +0100 Original-Received: from localhost ([::1]:33422 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gUUu0-0002nt-FJ for geh-help-gnu-emacs@m.gmane.org; Wed, 05 Dec 2018 05:59:36 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:47225) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gUUtV-0002nd-GU for help-gnu-emacs@gnu.org; Wed, 05 Dec 2018 05:59:07 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gUUtR-0007i2-NQ for help-gnu-emacs@gnu.org; Wed, 05 Dec 2018 05:59:05 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:51016) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gUUtR-0007hv-Gf for help-gnu-emacs@gnu.org; Wed, 05 Dec 2018 05:59:01 -0500 Original-Received: from [176.228.60.248] (port=3637 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1gUUtR-0007zc-0q for help-gnu-emacs@gnu.org; Wed, 05 Dec 2018 05:59:01 -0500 In-reply-to: <861s6wxp2j.fsf@zoho.eu> (message from Emanuel Berg on Wed, 05 Dec 2018 11:09:24 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:118859 Archived-At: > From: Emanuel Berg > Date: Wed, 05 Dec 2018 11:09:24 +0100 > > Eli Zaretskii wrote: > > >> But how do I determine if the buffer has > >> changed or not? If it has, of course it > >> should be marked `**'! > > > > That's the same problem that M-q has, and it > > leaves the modified status intact. Why not do > > as it does? > > I'm not following, "Why not do as it does"? I mean why not follow M-q's example? It marks the buffer modified even if re-filling the text arrived at the same text as before the command. > > You could, of course, save a copy of the > > buffer before the changes, and then compare, > > but why bother? > > Don't you think it is confusing, even > incorrect, to have the buffer change status > when the data hasn't changed from the command? The data did change, it just eventually arrived at the same contents. Sheer luck.