From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Heerdegen 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 19:42:39 +0100 Message-ID: <87sft37nmo.fsf@web.de> 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> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="34313"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: larsi@gnus.org, esabof@gmail.com, 14582@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Jan 31 20:16:18 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 1nEc9y-0008iw-69 for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 31 Jan 2022 20:16:18 +0100 Original-Received: from localhost ([::1]:56022 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nEc9x-0005Qv-1J for geb-bug-gnu-emacs@m.gmane-mx.org; 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Mon, 31 Jan 2022 19:42:41 +0100 In-Reply-To: <83k0eg7y23.fsf@gnu.org> (Eli Zaretskii's message of "Mon, 31 Jan 2022 16:57:24 +0200") X-Provags-ID: V03:K1:zHufWRcjtHa2bUNV+pptj6t8mX9Ow6eiy5ihsFG8Tdi0S1QoUEg daT45kF4JKoLmQPpLvrdd8DxS4QtCb/VM6aQ7DOlk7oBWpPdCDPYnVnqcMq20vEO4dO+53o X0BLYxEyZ+E1tNdZKnZ6z/HM+a+7QXpauNaSJJFkGit1mLwHeCKgEG7a68/YtPBcJ5utKTH Sv1F60Oz1uMz+N1XLvVKQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:h/+aGxXUxzQ=:UUPsMmoklYogY7THJxqVJA l/zzBZXKdZzYqjk3rHp4z33zb5mV06Epff1EKM3cf/fcx4u8PxBJ6iea8tnOzB1QiwOl7iUFa +mzkNG8Kq+hKwUyEywtqwi2GJG/mGHzyJ0YITIvwZ2sNBRPW7zbaMalNShqzwgvcJ8e41EMtj NQ+VN0aWO05xmcMHbMEth7GSda88VIe7mKFQXyH9F2HBwrrjKHwHWhr4TbGrNiaiBOjWmeo0w 3FThZxTOCvib3mXyvaPXfa8B+AApqXO9TIYnZsNf4A/vEaRcffaasI4/kWw++1fcYmpnECHFU JffGzoyAuICAFZHhN6ltEzJ7YDNdTbHiQHRqd36GaT8THc0/OopndsK0NKw1Lnqj6YsB65JSX 1/Vm8SvLzqj0dXH5Pfxq0k/D1Aqdvx2eSXwueeV71xxwSgKz0EtfudrJY5mfG8fdd3XJXgNoJ rHu+dC3SAHKPewy6quLnBICvkxbNc644Vefcc7JhLqD5yu+GjN6+nl4+4JYtbCpmx6b1Rqsm9 i27cKOSYuAdpGW3DDQedC2vvar/azAPg5fawcqv9kytbtu4rXxBpvwrsX1QR5FpNwzyg0eSvg ZtOqw5BMNp+716fY39PIqlSxS6t0FBnavbyQNA+fai8wR7odV0NI1MygiUzvY98GiK6CJBtNO gF68xodgiYmxD/3W9L/Jg5XFWK3lB3Pu5KgoHlVNjnWQfmn7UWv1V1V0FwIa0qm26qRQb+zqA zJ/Qm+GQSxAdNWv5B+z2nTJrqH3O3Y4bg9ty8gHu59Or1VvL6idSsQx3ttg4Vb2J4t9SddiD 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:225717 Archived-At: 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. Michael.