From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: Finding last *Async Shell Command* buffer? Date: Fri, 26 Mar 2021 10:54:07 +0300 Message-ID: References: <87k0puihrd.fsf@robertthorpeconsulting.com> <83a6qqqulz.fsf@gnu.org> <834kgyqrtm.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="16283"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.0.6 (2021-03-06) Cc: help-gnu-emacs@gnu.org To: Eli Zaretskii Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Mar 26 09:00:02 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lPhNy-00048x-4t for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 26 Mar 2021 09:00:02 +0100 Original-Received: from localhost ([::1]:58728 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lPhNx-0001qJ-66 for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 26 Mar 2021 04:00:01 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55766) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lPhMy-0001dv-5e for help-gnu-emacs@gnu.org; Fri, 26 Mar 2021 03:59:01 -0400 Original-Received: from stw1.rcdrun.com ([217.170.207.13]:40087) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lPhMr-00009t-Rf; Fri, 26 Mar 2021 03:58:59 -0400 Original-Received: from localhost ([::ffff:41.210.143.10]) (AUTH: PLAIN securesender, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 000000000001E0AB.00000000605D943A.00005411; Fri, 26 Mar 2021 00:58:49 -0700 Mail-Followup-To: Eli Zaretskii , help-gnu-emacs@gnu.org Content-Disposition: inline In-Reply-To: <834kgyqrtm.fsf@gnu.org> Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 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-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:128608 Archived-At: * Eli Zaretskii [2021-03-26 10:48]: > > Date: Fri, 26 Mar 2021 10:17:11 +0300 > > From: Jean Louis > > Cc: help-gnu-emacs@gnu.org > > > > > Did you try writing a simple function to put on > > > buffer-list-update-hook? Then you can in that function define a > > > buffer-local variable whose value is a simple monotonically increasing > > > counter, or even the time when the buffer was created. Then write a > > > command to sort buffers in the order determined by that variable. > > > > I have tried using that function, but again, how do I get the last > > buffer? > > By comparing the current buffer-list with the previous one? My naive attempt does not show any difference, as I am doing something wrong. (setq last-buffer-list nil) (defun rcd-last-async-buffer (&rest args) (let ((last (set-difference last-buffer-list (buffer-list)))) (message "Last buffer: %s" last)) (setq last-buffer-list (buffer-list))) (add-hook 'buffer-list-update-hook 'rcd-last-async-buffer)