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.devel Subject: Re: move_it_vertically_backward question Date: Thu, 16 Dec 2021 12:04:34 +0200 Message-ID: <83mtl0hnm5.fsf@gnu.org> References: <87lf0pw78r.fsf.ref@yahoo.com> <87lf0pw78r.fsf@yahoo.com> <837dc8mue3.fsf@gnu.org> <874k7cuhv4.fsf@yahoo.com> <83lf0nl56t.fsf@gnu.org> <875yrrtiwj.fsf@yahoo.com> <837dc7l2pa.fsf@gnu.org> <87ilvqty24.fsf@yahoo.com> <8335muj8zk.fsf@gnu.org> <87h7bang3d.fsf@yahoo.com> <83mtl1j527.fsf@gnu.org> <87zgp1mldh.fsf@yahoo.com> <83tuf9gdg5.fsf@gnu.org> <87pmpwkikp.fsf@yahoo.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="18903"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Po Lu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Dec 16 11:06:15 2021 Return-path: Envelope-to: ged-emacs-devel@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 1mxneR-0004iK-32 for ged-emacs-devel@m.gmane-mx.org; Thu, 16 Dec 2021 11:06:15 +0100 Original-Received: from localhost ([::1]:45156 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mxneP-0001SK-Mh for ged-emacs-devel@m.gmane-mx.org; Thu, 16 Dec 2021 05:06:13 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:59130) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxnd6-00082p-O7 for emacs-devel@gnu.org; Thu, 16 Dec 2021 05:04:52 -0500 Original-Received: from [2001:470:142:3::e] (port=57306 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 1mxnd6-0005eU-Eh; Thu, 16 Dec 2021 05:04:52 -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=O4w42P8sba5A1rturXceOwqiTQDpaZhzs7ffDR0UjhY=; b=HqqJilQSlRMr kZxi0aEBThouJaf9V1bYFDB3wE1l2ZYCTt438xjVBhn/nLLrzFHE77hEt+xS+HdFFtYZzyiS+eEgd rLq3hdIh7Uo0XTAejuYH8/dfIWUNsV+q0zEbo0STEPKt29xUrzwo5VCXqBGq30xJoubJDIwDaWajy /T51fzVNc2BVE5MyOuJ5brXKJrfnMXOcfGxFGY8RHFU+7JrC/Adt0CRpy4n+LOE0iD/O0HtNGfp2P h7po9ZtVdkeGXifOiaiVz0X+vK4n7pLUAkx1+zt5n2nnlct1Y0oAJ7seT4fU+gE2pf/+ZpwCqwDvC Y9pByz7XlHp+Q263mpGmOA==; Original-Received: from [87.69.77.57] (port=2460 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 1mxnd6-0003Lp-8b; Thu, 16 Dec 2021 05:04:52 -0500 In-Reply-To: <87pmpwkikp.fsf@yahoo.com> (message from Po Lu on Thu, 16 Dec 2021 17:25:10 +0800) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:282141 Archived-At: > From: Po Lu > Cc: emacs-devel@gnu.org > Date: Thu, 16 Dec 2021 17:25:10 +0800 > > Eli Zaretskii writes: > > > Or maybe I misunderstand what you mean by "window start could be > > inside a screen line". Do you mean the window start is not at the > > leftmost character/display element shown on that screen line? > > Yes. > > > When does that happen? > > It happens in Info buffers, at the very least. I don't know why that > is, but it happens. I guess that's because of display and/or overlay strings at the beginning of the node or something. We should provide a way for window-text-pixel-size to stop at the visual beginning of a line, but I'm not sure the right way of saying that is specifying the buffer position of the previous line: there could be a display/overlay string there as well, or somesuch. So are you going to work on extending window-text-pixel-size like this, and if so, do you need my help? Thanks.