From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.devel Subject: Re: Repeat undo-only is not working Date: Tue, 24 Aug 2021 09:40:13 +0300 Organization: LINKOV.NET Message-ID: <87bl5nz762.fsf@mail.linkov.net> References: <20210823131240.rxfepbz4q2buo733.ref@Ergus> <20210823131240.rxfepbz4q2buo733@Ergus> <87eeakgqa6.fsf@mail.linkov.net> <14b08091-f054-3740-7351-b32a7d9fb1c3@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="37991"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (x86_64-pc-linux-gnu) Cc: Ergus , emacs-devel To: Jim Porter Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Aug 24 08:52:28 2021 Return-path: Envelope-to: ged-emacs-devel@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 1mIQIO-0009gx-PR for ged-emacs-devel@m.gmane-mx.org; Tue, 24 Aug 2021 08:52:28 +0200 Original-Received: from localhost ([::1]:35006 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mIQIN-00080J-KQ for ged-emacs-devel@m.gmane-mx.org; Tue, 24 Aug 2021 02:52:27 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:52782) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mIQE0-0001Eq-3q for emacs-devel@gnu.org; Tue, 24 Aug 2021 02:47:56 -0400 Original-Received: from relay10.mail.gandi.net ([217.70.178.230]:45953) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mIQDw-0002a9-E6 for emacs-devel@gnu.org; Tue, 24 Aug 2021 02:47:55 -0400 Original-Received: (Authenticated sender: juri@linkov.net) by relay10.mail.gandi.net (Postfix) with ESMTPSA id 42344240007; Tue, 24 Aug 2021 06:47:48 +0000 (UTC) In-Reply-To: <14b08091-f054-3740-7351-b32a7d9fb1c3@gmail.com> (Jim Porter's message of "Mon, 23 Aug 2021 13:50:04 -0700") Received-SPF: pass client-ip=217.70.178.230; envelope-from=juri@linkov.net; helo=relay10.mail.gandi.net 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, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:272892 Archived-At: >> Sorry, this part of the feature is still unpolished. >> The intention was to disallow repeating of undo with >> the key sequence `C-/ u', but allow only with `C-x u u'. >> Maybe this was a wrong idea? Do you think it should be >> possible to type `C-/' to initiate the repeating sequence >> `C-/ u u u'? > > For what it's worth, the intention matches my personal expectation. I'd be > pretty surprised if a key sequence with a single input event (e.g. `C-/') > activated a repeat-mode map. My mental model is that repeat-mode "saves" > all but the last input event of a key sequence and then uses it as a prefix > to the subsequently-pressed keys. > > Perhaps it should be possible to support the behavior in the original post, > but I'm happy with how things are now. So there is a need to distinguish between these cases C-/ --- u u u C-x u --- u u ("---" visually separates the initial and repeating sequence) and allow their customization. Maybe a new variable is sufficient that will inhibit checking that the last character exists in repeat-map. But what to do if the user wants to disable C-/ --- u u u, but still wants to use for gdb-step such sequence C-x C-a C-n --- n n n n where repeat-map has no C-n?