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#30204: 27.0.50; Changing major mode resets non-default invisibility spec Date: Sun, 05 Sep 2021 12:34:16 +0300 Message-ID: <83wnnvtlgn.fsf@gnu.org> References: <87lf55cxvj.fsf@gnus.org> <97574057-8212-4812-93CF-0C2EC7EA8B39@gmail.com> <87ilzfo13i.fsf@gnus.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6366"; mail-complaints-to="usenet@ciao.gmane.io" Cc: p.stephani2@gmail.com, 30204@debbugs.gnu.org To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Sep 05 11:35:09 2021 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 1mMoYO-0001XW-Q2 for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 05 Sep 2021 11:35:08 +0200 Original-Received: from localhost ([::1]:34044 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mMoYN-0002A1-TO for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 05 Sep 2021 05:35:07 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:40008) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mMoYI-00029b-D9 for bug-gnu-emacs@gnu.org; Sun, 05 Sep 2021 05:35:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:37682) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mMoYI-000555-1T for bug-gnu-emacs@gnu.org; Sun, 05 Sep 2021 05:35:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mMoYH-0003Qv-Su for bug-gnu-emacs@gnu.org; Sun, 05 Sep 2021 05:35:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 05 Sep 2021 09:35:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 30204 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 30204-submit@debbugs.gnu.org id=B30204.163083446313131 (code B ref 30204); Sun, 05 Sep 2021 09:35:01 +0000 Original-Received: (at 30204) by debbugs.gnu.org; 5 Sep 2021 09:34:23 +0000 Original-Received: from localhost ([127.0.0.1]:49225 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mMoXe-0003Pj-W9 for submit@debbugs.gnu.org; Sun, 05 Sep 2021 05:34:23 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:52032) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mMoXc-0003PT-Ak for 30204@debbugs.gnu.org; Sun, 05 Sep 2021 05:34:21 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:58866) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mMoXX-0004Mu-0u; Sun, 05 Sep 2021 05:34:15 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:1209 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mMoXW-0000gm-DC; Sun, 05 Sep 2021 05:34:14 -0400 In-Reply-To: <87ilzfo13i.fsf@gnus.org> (message from Lars Ingebrigtsen on Sun, 05 Sep 2021 10:53:05 +0200) 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:213480 Archived-At: > From: Lars Ingebrigtsen > Date: Sun, 05 Sep 2021 10:53:05 +0200 > Cc: 30204@debbugs.gnu.org > > > Yes, but they do survive, i.e. once markdown-mode has made some text > > conditionally-visible (which it does for URLs etc.), I'd expect it to > > become unconditionally-visible instead of unconditionally-invisible > > when changing the major mode. > > That's true. Hm... Should major modes remove `invisible' text > properties (where the value isn't t)? No, that wouldn't be right, > either. > > Uhm. OK, if `buffer-invisibility-spec' isn't t, > `kill-all-local-variables' could remove the `invisible' text property > from all text that has a non-t value? > > That sounds like it would potentially be expensive, but a non-nil > invisibility spec is quite unusual (and switching major modes, in > general, is unusual (well, switching from anything but fundamental-mode > is unusual)). > > I dunno. Anybody have an opinion here? I think this is a corner use case, and if there's no easy way of doing something better with it, we shouldn't do anything.