From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#23785: Emacs 25: "Undo" overdoes things. Date: Fri, 17 Jun 2016 20:15:18 +0300 Message-ID: <83r3bvbuu1.fsf@gnu.org> References: <20160617150245.GB3316@acm.fritz.box> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1466187107 27286 80.91.229.3 (17 Jun 2016 18:11:47 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 17 Jun 2016 18:11:47 +0000 (UTC) Cc: 23785@debbugs.gnu.org To: Alan Mackenzie Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Jun 17 20:11:35 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bDyEw-0004Xo-1P for geb-bug-gnu-emacs@m.gmane.org; Fri, 17 Jun 2016 20:11:34 +0200 Original-Received: from localhost ([::1]:59607 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bDyEv-0001FW-5N for geb-bug-gnu-emacs@m.gmane.org; Fri, 17 Jun 2016 14:11:33 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44505) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bDxMI-0006l5-Kc for bug-gnu-emacs@gnu.org; Fri, 17 Jun 2016 13:15:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bDxME-0003KU-Ih for bug-gnu-emacs@gnu.org; Fri, 17 Jun 2016 13:15:06 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:60356) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bDxME-0003KP-GG for bug-gnu-emacs@gnu.org; Fri, 17 Jun 2016 13:15:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1bDxME-0002M9-A7 for bug-gnu-emacs@gnu.org; Fri, 17 Jun 2016 13:15:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 17 Jun 2016 17:15:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 23785 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 23785-submit@debbugs.gnu.org id=B23785.14661836698999 (code B ref 23785); Fri, 17 Jun 2016 17:15:02 +0000 Original-Received: (at 23785) by debbugs.gnu.org; 17 Jun 2016 17:14:29 +0000 Original-Received: from localhost ([127.0.0.1]:44460 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bDxLg-0002L5-TE for submit@debbugs.gnu.org; Fri, 17 Jun 2016 13:14:29 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:53164) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bDxLf-0002Kr-4u for 23785@debbugs.gnu.org; Fri, 17 Jun 2016 13:14:28 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bDxLV-00037q-Mq for 23785@debbugs.gnu.org; Fri, 17 Jun 2016 13:14:21 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:41212) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bDxLV-00037a-Jg; Fri, 17 Jun 2016 13:14:17 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:4555 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1bDxLT-00084h-S4; Fri, 17 Jun 2016 13:14:16 -0400 In-reply-to: <20160617150245.GB3316@acm.fritz.box> (message from Alan Mackenzie on Fri, 17 Jun 2016 15:02:45 +0000) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:119684 Archived-At: > Date: Fri, 17 Jun 2016 15:02:45 +0000 > From: Alan Mackenzie > > Summary: `undo' is broken in Emacs 25. > > In GNU Emacs 25.0.94.2 (x86_64-unknown-linux-gnu, GTK+ Version 3.18.7) > of 2016-06-07 built on acm > Repository revision: 9d5ccebeba0506f7280662630f0ee85a52c8a327 > Configured using: > 'configure --with-tiff=no --with-gif=no --with-gpm' > > 1. emacs -Q > 2. C-x C-f decls-6.cc ; file is attached. > 3. Move point to BOL 17. > 4. C-o, and insert the line "Type var = init;". Call this line 16½. > 5. M-x revert-buffer. > 6. Move point to "[" on L16, and use C-M-k to delete "[3 * peq]". > 7. C-_. This restores "[3 * peq]" (correctly) but also reinserts line > 16½ (which is a bug). Why does this minor issue deserve to declare 'undo' "broken"? Looks like an exaggeration to me.