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: Tue, 27 Oct 2015 20:33:32 +0200 Message-ID: <83bnbk40w3.fsf@gnu.org> References: <20151016201238.GD2779@acm.fritz.box> <83twpp51xz.fsf@gnu.org> <20151017115738.GA2522@acm.fritz.box> <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> <20151027173533.GD2401@acm.fritz.box> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1445970818 15993 80.91.229.3 (27 Oct 2015 18:33:38 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 27 Oct 2015 18:33:38 +0000 (UTC) Cc: emacs-devel@gnu.org To: Alan Mackenzie Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Oct 27 19:33:30 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 1Zr93p-0007yt-Iv for ged-emacs-devel@m.gmane.org; Tue, 27 Oct 2015 19:33:29 +0100 Original-Received: from localhost ([::1]:33680 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zr93p-0005aK-0g for ged-emacs-devel@m.gmane.org; Tue, 27 Oct 2015 14:33:29 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:54820) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zr93m-0005aD-6y for emacs-devel@gnu.org; Tue, 27 Oct 2015 14:33:26 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Zr93h-0002kO-4E for emacs-devel@gnu.org; Tue, 27 Oct 2015 14:33:26 -0400 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:53070) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zr93g-0002kG-ST for emacs-devel@gnu.org; Tue, 27 Oct 2015 14:33:21 -0400 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0NWW00C0062NT600@a-mtaout22.012.net.il> for emacs-devel@gnu.org; Tue, 27 Oct 2015 20:33:19 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([84.94.185.246]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NWW00CFF67IOR30@a-mtaout22.012.net.il>; Tue, 27 Oct 2015 20:33:19 +0200 (IST) In-reply-to: <20151027173533.GD2401@acm.fritz.box> X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: Solaris 10 X-Received-From: 80.179.55.172 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:192746 Archived-At: > Date: Tue, 27 Oct 2015 17:35:33 +0000 > Cc: emacs-devel@gnu.org > From: Alan Mackenzie > > On Tue, Oct 27, 2015 at 01:40:25PM +0000, Alan Mackenzie wrote: > > Another point I'd appreciate clarification on. Some while back, for > > example, your mail of Fri, 16 Oct 2015 20:26:08 +0300, we were talking > > about the order of screen positions varying non-linearly with buffer > > positions. Is it true that if a continuation line begins at buffer > > position A, then for x < A, buffer position x will be displayed on a > > previous line? (And also for x > A, x will be displayed on this line or > > a subsequent one?) > > I've just found out the answer for myself. These relationships, however > desirable they might be, do not hold. So software which needs to > determine which (display) line a character is on needs to use the > move_it_.... routines, somehow. Yes, correct.