From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#34038: 26.1; set-window-start sometimes fails to set window start Date: Fri, 11 Jan 2019 21:07:55 +0200 Message-ID: <834lafgghg.fsf@gnu.org> References: <83sgxzhe04.fsf@gnu.org> <87ef9je67i.fsf@metalevel.at> <83d0p3gvua.fsf@gnu.org> <8736pz8dus.fsf@metalevel.at> <5C38B1F5.7040205@gmx.at> <87o98nf5pq.fsf@metalevel.at> NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1547233755 30023 195.159.176.226 (11 Jan 2019 19:09:15 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 11 Jan 2019 19:09:15 +0000 (UTC) Cc: 34038@debbugs.gnu.org To: Markus Triska Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Jan 11 20:09:11 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gi2B5-0007ah-5w for geb-bug-gnu-emacs@m.gmane.org; Fri, 11 Jan 2019 20:09:11 +0100 Original-Received: from localhost ([127.0.0.1]:54282 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gi2D6-0002od-OT for geb-bug-gnu-emacs@m.gmane.org; Fri, 11 Jan 2019 14:11:16 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:59394) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gi2Ax-00011e-CA for bug-gnu-emacs@gnu.org; Fri, 11 Jan 2019 14:09:03 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gi2Aw-0003dD-Rk for bug-gnu-emacs@gnu.org; Fri, 11 Jan 2019 14:09:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:57049) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gi2Aw-0003d0-Nh for bug-gnu-emacs@gnu.org; Fri, 11 Jan 2019 14:09:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1gi2Aw-0007TW-CI for bug-gnu-emacs@gnu.org; Fri, 11 Jan 2019 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: Fri, 11 Jan 2019 19:09:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 34038 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 34038-submit@debbugs.gnu.org id=B34038.154723370128686 (code B ref 34038); Fri, 11 Jan 2019 19:09:02 +0000 Original-Received: (at 34038) by debbugs.gnu.org; 11 Jan 2019 19:08:21 +0000 Original-Received: from localhost ([127.0.0.1]:56330 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gi2AH-0007Sc-4m for submit@debbugs.gnu.org; Fri, 11 Jan 2019 14:08:21 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:48994) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gi2AE-0007SM-GY for 34038@debbugs.gnu.org; Fri, 11 Jan 2019 14:08:19 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:50228) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gi2A8-0003EZ-AG; Fri, 11 Jan 2019 14:08:12 -0500 Original-Received: from [176.228.60.248] (port=4171 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1gi2A7-0007IB-UJ; Fri, 11 Jan 2019 14:08:12 -0500 In-reply-to: <87o98nf5pq.fsf@metalevel.at> (message from Markus Triska on Fri, 11 Jan 2019 18:45:53 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:154354 Archived-At: > From: Markus Triska > Cc: Eli Zaretskii , 34038@debbugs.gnu.org > Date: Fri, 11 Jan 2019 18:45:53 +0100 > > >From this, I get the impression that a pending redisplay may interfere > with reliably setting the window-start even if window-point is set! If you call set-window-start with last argument non-nil, redisplay is under no obligation to honor your window-start. It tries to use it, but if it doesn't fit, for whatever reason, it disregards it. So as along as you call set-window-start this way, you cannot rely on the window-start point you set to be honored. It might be, except when it won't be.