From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#43587: move-to-column behaves differently when text has invisible property Date: Wed, 30 Sep 2020 17:35:40 +0300 Message-ID: <83tuvfib7n.fsf@gnu.org> References: <7e243d01-6d98-bda3-94bf-c0841a32f4ac@web.de> <83blhojtmf.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="36562"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 43587@debbugs.gnu.org To: tiga.arenz@web.de Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Sep 30 16:37:31 2020 Return-path: Envelope-to: geb-bug-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 1kNdEY-0009Pd-8C for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 30 Sep 2020 16:37:30 +0200 Original-Received: from localhost ([::1]:60990 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kNdEX-0001h0-4C for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 30 Sep 2020 10:37:29 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53990) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kNdD9-0000ia-Oz for bug-gnu-emacs@gnu.org; Wed, 30 Sep 2020 10:36:04 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:49149) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kNdD8-0002Tk-PO for bug-gnu-emacs@gnu.org; Wed, 30 Sep 2020 10:36:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kNdD8-0006Dm-3q for bug-gnu-emacs@gnu.org; Wed, 30 Sep 2020 10:36:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 30 Sep 2020 14:36:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 43587 X-GNU-PR-Package: emacs Original-Received: via spool by 43587-submit@debbugs.gnu.org id=B43587.160147655723899 (code B ref 43587); Wed, 30 Sep 2020 14:36:02 +0000 Original-Received: (at 43587) by debbugs.gnu.org; 30 Sep 2020 14:35:57 +0000 Original-Received: from localhost ([127.0.0.1]:60695 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kNdD2-0006DO-Mw for submit@debbugs.gnu.org; Wed, 30 Sep 2020 10:35:56 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:47164) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kNdD0-0006DC-Jp for 43587@debbugs.gnu.org; Wed, 30 Sep 2020 10:35:55 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:34542) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kNdCv-0002TI-2K; Wed, 30 Sep 2020 10:35:49 -0400 Original-Received: from [176.228.60.248] (port=4414 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kNdCu-000726-Em; Wed, 30 Sep 2020 10:35:48 -0400 In-Reply-To: <83blhojtmf.fsf@gnu.org> (message from Eli Zaretskii on Tue, 29 Sep 2020 22:00:24 +0300) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:189345 Archived-At: > Date: Tue, 29 Sep 2020 22:00:24 +0300 > From: Eli Zaretskii > Cc: 43587@debbugs.gnu.org > > It's a deficiency in the algorithm used by move-to-column that > determines whether the goal column is in the middle of a TAB. It > assumes that in such a case the TAB is the previous character that > ends at the column where the movement ended, but that is not so when > invisible text immediately follows the TAB, because moving over the > TAB will in that case also skip all of the following invisible text. > > I will see how this can be fixed without making the function too slow > (because it needs to consider overlays as well, not just text > properties). I think I fixed this now on the master branch.