From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Howard Melman Newsgroups: gmane.emacs.devel Subject: Re: A new user perspective about "Changes for emacs 28" Date: Thu, 10 Sep 2020 10:52:57 -0400 Message-ID: References: <1ca462fa-0f9e-3c18-6386-f43f49388b2f@gmail.com> <20200907180812.5tfylspp7i6vl4o3@Ergus> <94fda087-a61b-356d-4bb4-791907593246@yandex.ru> <24302cf8-5ac8-4abd-83ce-3e33c51a8beb@default> <83k0x4mjsv.fsf@gnu.org> <831rjcmgn8.fsf@gnu.org> <87k0x29jtm.fsf@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="22964"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (darwin) To: emacs-devel@gnu.org Cancel-Lock: sha1:oXP+2LhF3/SR9oxR/f8heVIoFiI= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Sep 10 16:53:41 2020 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 1kGNxE-0005re-Ht for ged-emacs-devel@m.gmane-mx.org; Thu, 10 Sep 2020 16:53:40 +0200 Original-Received: from localhost ([::1]:48858 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kGNxD-0003Vo-KW for ged-emacs-devel@m.gmane-mx.org; Thu, 10 Sep 2020 10:53:39 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60116) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kGNwi-00032a-Bu for emacs-devel@gnu.org; Thu, 10 Sep 2020 10:53:08 -0400 Original-Received: from static.214.254.202.116.clients.your-server.de ([116.202.254.214]:42424 helo=ciao.gmane.io) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kGNwg-0002XX-Vs for emacs-devel@gnu.org; Thu, 10 Sep 2020 10:53:08 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1kGNwd-0005AP-Rv for emacs-devel@gnu.org; Thu, 10 Sep 2020 16:53:03 +0200 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=ged-emacs-devel@m.gmane-mx.org; helo=ciao.gmane.io X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/10 08:40:33 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: 5 X-Spam_score: 0.5 X-Spam_bar: / X-Spam_report: (0.5 / 5.0 requ) BAYES_00=-1.9, DKIM_ADSP_CUSTOM_MED=0.001, FORGED_GMAIL_RCVD=1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, NML_ADSP_CUSTOM_MED=0.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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:255007 Archived-At: Jack Kamm writes: > Using selective-undo, revert-buffer, undo-only, and > undo-redo-only, it becomes a lot easier to navigate emacs' > undo. But these features are not immediately obvious; I > had to read the Info page to learn about them. Whereas, > undo-tree is quickly grokked due to the nice > visualization. I've seen in various posts people mention commands like undo-redo, undo-redo-only, redo, redo-only, and I don't know what they are referring to. I understand how repeated uses of undo works in emacs and what happens when you break a chain of them, but it sounds like people are describing something else. I'm using Emacs 27.1 (the carbon port). I have commands `undo' and `undo-only' but no commands with redo in their names other than `org-agenda-redo'. In the emacs manual the only index entry for redo refers to the Undo node which doesn't describe any command named `redo' or `redo-only'. I've tried undo-tree before but didn't care for it. It has a command called `undo-tree-redo' but nothing called `redo-only'. Could someone point me at some explanation of what they're referring to when they say redo-only? -- Howard