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#14582: 24.3.50.1; Strange overlay behavior, when window-start is inside an overlay. Date: Mon, 31 Jan 2022 21:08:33 +0200 Message-ID: <83a6fb90zy.fsf@gnu.org> References: <83y5ajmcwk.fsf@gnu.org> <83sj0rmat2.fsf@gnu.org> <83r4gbm991.fsf@gnu.org> <87czk87vmo.fsf@gnus.org> <87k0egwxk6.fsf@web.de> <83k0eg7y23.fsf@gnu.org> <87sft37nmo.fsf@web.de> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28898"; mail-complaints-to="usenet@ciao.gmane.io" Cc: larsi@gnus.org, esabof@gmail.com, 14582@debbugs.gnu.org To: Michael Heerdegen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Jan 31 20:36:55 2022 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 1nEcTv-0007NL-4T for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 31 Jan 2022 20:36:55 +0100 Original-Received: from localhost ([::1]:45062 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nEcTt-0002dh-RD for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 31 Jan 2022 14:36:53 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:51578) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nEc2x-0002ca-CN for bug-gnu-emacs@gnu.org; Mon, 31 Jan 2022 14:09:05 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:47939) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nEc2w-0001fI-Mh for bug-gnu-emacs@gnu.org; Mon, 31 Jan 2022 14:09:03 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1nEc2w-0000J3-GC for bug-gnu-emacs@gnu.org; Mon, 31 Jan 2022 14:09:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 31 Jan 2022 19:09:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 14582 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 14582-submit@debbugs.gnu.org id=B14582.16436561241140 (code B ref 14582); Mon, 31 Jan 2022 19:09:02 +0000 Original-Received: (at 14582) by debbugs.gnu.org; 31 Jan 2022 19:08:44 +0000 Original-Received: from localhost ([127.0.0.1]:40840 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nEc2e-0000IK-58 for submit@debbugs.gnu.org; Mon, 31 Jan 2022 14:08:44 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:44860) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nEc2c-0000I6-BJ for 14582@debbugs.gnu.org; Mon, 31 Jan 2022 14:08:42 -0500 Original-Received: from [2001:470:142:3::e] (port=53036 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nEc2X-0001dO-2R; Mon, 31 Jan 2022 14:08:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=lTwq5DbkSr4/lp2NOWioTQxjGpvHTmmGSEDE3w1dAF0=; b=c/odOxOp93Cn mcc4QV1XNVskSBscF+4bCQ6ABBYZHjzLdOFEmV2yGqWLN9BTY80lZeDoQ8F/4i9eoPaLkAuZkVm7F ZdKu2Z/8ZO5F4tmPupTJWd0CpXMIektXOCjpGs/OSBymAV1322U4Be1uczuuZZBzo+3l9lAOuNkpY nqXDAewQX8LUcg9tDM/dwqmN6Ktx6f0lLndUQMLBE9ldwPBj6a0pkXyDgRII5sS/F+bDAxauOoa4Q n78WxjWIk5Q5MrqpiuGCuUkdajsr6IWVF3rJ+jjrXwROj+uBEsPbxRekaSqPsntvwmsCNY61DUdNq deUXhHstNUg4ZdxiQU2akw==; Original-Received: from [87.69.77.57] (port=2367 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 1nEc2W-0004w9-FK; Mon, 31 Jan 2022 14:08:36 -0500 In-Reply-To: <87sft37nmo.fsf@web.de> (message from Michael Heerdegen on Mon, 31 Jan 2022 19:42:39 +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:225718 Archived-At: > From: Michael Heerdegen > Cc: larsi@gnus.org, esabof@gmail.com, 14582@debbugs.gnu.org > Date: Mon, 31 Jan 2022 19:42:39 +0100 > > Eli Zaretskii writes: > > > Basically, we are being asked to introduce application-level logic > > into the general-purpose parts of the display code: the application > > sets the window-start at some place which happens to be a bad idea, > > and wants the display engine to save the application from itself. I > > don't think it's TRT. > > There is a misunderstanding here: hideshow doesn't change window-start. > > What actually happens is: Elisp, be it hideshow or whatever, changes > visibility of some part(s) of the buffer. Sometimes it can happen that > the old window start position (in any window) is part of a fold > (invisible region) afterwards. Then the issue I described occurs. Then please provide a full, self-contained recipe starting from "emacs -Q" that uses hideshow. The only recipe I saw and analyzed in this bug was the original one, which did set window-start. Perhaps you are talking about a different issue.