From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#30204: 27.0.50; Changing major mode resets non-default invisibility spec Date: Fri, 13 Aug 2021 14:50:08 +0200 Message-ID: <87lf55cxvj.fsf@gnus.org> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="37478"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 30204@debbugs.gnu.org To: Philipp Stephani Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Aug 13 14:51:11 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 1mEWeU-0009YA-Nx for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 13 Aug 2021 14:51:10 +0200 Original-Received: from localhost ([::1]:34482 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mEWeT-0006zU-MW for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 13 Aug 2021 08:51:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41814) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mEWeM-0006xg-FH for bug-gnu-emacs@gnu.org; Fri, 13 Aug 2021 08:51:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:57487) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mEWeM-0008Om-6u for bug-gnu-emacs@gnu.org; Fri, 13 Aug 2021 08:51:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mEWeL-0002b4-Qr for bug-gnu-emacs@gnu.org; Fri, 13 Aug 2021 08:51:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 13 Aug 2021 12:51:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 30204 X-GNU-PR-Package: emacs Original-Received: via spool by 30204-submit@debbugs.gnu.org id=B30204.16288590239923 (code B ref 30204); Fri, 13 Aug 2021 12:51:01 +0000 Original-Received: (at 30204) by debbugs.gnu.org; 13 Aug 2021 12:50:23 +0000 Original-Received: from localhost ([127.0.0.1]:40798 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mEWdj-0002Zz-1T for submit@debbugs.gnu.org; Fri, 13 Aug 2021 08:50:23 -0400 Original-Received: from quimby.gnus.org ([95.216.78.240]:51214) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mEWdf-0002Za-C2 for 30204@debbugs.gnu.org; Fri, 13 Aug 2021 08:50:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=zUfMjEl66LYYr/Il5h+kfqopjWhIADuMu4BkOaNLQnE=; b=ooJS/HeLPDcfeozVWAh/cjh8kj WJKIRXaE50YI/OSQoG3g3zEfW798OPki2ZhETDY5lU86MYAXfaZ/If2EH7QZByJEN8g6NG88FIm3u 22gyEzJshvhyT0sKxjLV9kSlWMS+PV7XLyXJBwend06qVZnD67HhFQaivA3ojs9KcZ2g=; Original-Received: from [84.212.220.105] (helo=elva) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mEWdU-0003zu-MB; Fri, 13 Aug 2021 14:50:12 +0200 In-Reply-To: (Philipp Stephani's message of "Mon, 22 Jan 2018 10:51:32 +0100") 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:211752 Archived-At: Philipp Stephani writes: > C-x b *foo* RET > M-: (progn (add-to-invisibility-spec 'bar) (insert (propertize "foo" 'invisible 'foo))) > > Now "foo" is visible, as it should be. > > M-x fundamental-mode => "foo" becomes invisible, because > `kill-all-local-variables' has reset `buffer-invisibility-spec' to t. > This can be confusing for modes that use conditional invisibility > properties such as markdown-mode. I'm not quite sure I understand the problem here -- if you have a buffer in markdown-mode (that's set these properties), why would you change to fundamental-mode? And I think this is correct behaviour -- if you've switched to fundamental-mode, then you don't want these remnants from markdown-mode to survive, I think? > Why can't you make buffer-invisibility-spec be a permanent-local > variable in the cases where that is TRT? > > Hmm, yes, that sounds like a good idea. Let me try that. > > I don't think this works: The permanent-local property is a global symbol > property, but I'd need it to be per-buffer. Yes, I don't think we have any mechanism that says "this buffer-local value should survive if you change major mode, but only this one". And I think that's probably a good idea, because it sounds like a confusing interface. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no