From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: "... the window start at a meaningless point within a line." Date: Sun, 01 Nov 2015 20:07:22 +0200 Message-ID: <83d1vty4o5.fsf@gnu.org> References: <83oafx4qsb.fsf@gnu.org> <83lhb14o6e.fsf@gnu.org> <83k2ql4lsy.fsf@gnu.org> <20151018150052.GD1639@acm.fritz.box> <83lhb0hy0h.fsf@gnu.org> <20151019102755.GB2438@acm.fritz.box> <20151027134025.GA2401@acm.fritz.box> <83fv0w41dg.fsf@gnu.org> <20151028131505.GB2538@acm.fritz.box> <8337wryy0x.fsf@gnu.org> <20151101152354.GD2768@acm.fritz.box> <83h9l5y5on.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1446401260 10903 80.91.229.3 (1 Nov 2015 18:07:40 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 1 Nov 2015 18:07:40 +0000 (UTC) Cc: emacs-devel@gnu.org To: acm@muc.de Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Nov 01 19:07:31 2015 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Zsx2P-0004DH-W0 for ged-emacs-devel@m.gmane.org; Sun, 01 Nov 2015 19:07:30 +0100 Original-Received: from localhost ([::1]:38334 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zsx2P-0004W8-DN for ged-emacs-devel@m.gmane.org; Sun, 01 Nov 2015 13:07:29 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:45389) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zsx2D-0004W2-J2 for emacs-devel@gnu.org; Sun, 01 Nov 2015 13:07:18 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Zsx2A-0006B1-Bt for emacs-devel@gnu.org; Sun, 01 Nov 2015 13:07:17 -0500 Original-Received: from mtaout21.012.net.il ([80.179.55.169]:48492) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zsx2A-0006Aq-3o for emacs-devel@gnu.org; Sun, 01 Nov 2015 13:07:14 -0500 Original-Received: from conversion-daemon.a-mtaout21.012.net.il by a-mtaout21.012.net.il (HyperSendmail v2007.08) id <0NX500C00DX1I800@a-mtaout21.012.net.il> for emacs-devel@gnu.org; Sun, 01 Nov 2015 20:07:12 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([84.94.185.246]) by a-mtaout21.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NX500CSSEC0FH60@a-mtaout21.012.net.il>; Sun, 01 Nov 2015 20:07:12 +0200 (IST) In-reply-to: <83h9l5y5on.fsf@gnu.org> X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: Solaris 10 X-Received-From: 80.179.55.169 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:193072 Archived-At: Btw, you said you ignore display and overlay strings for now, but their existence raises a serious problem wrt your "exact window-start" solution: what if a display string starts on one screen line and ends on the next one, i.e. the continuation happens in the middle of a display string? In this case, you will not be able to force a window-start on a buffer position that is "covered" by the display string, so some part of the string will either be displayed twice, or not at all. This is also a problem with today's unmodified Follow mode: when such a string is between two windows, the second portion of the string (the one in the second window) is not displayed at all.