From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: David Engster Newsgroups: gmane.emacs.bugs Subject: bug#15045: Point jumps inappropriately around time of Semantic lexing Date: Fri, 09 Aug 2013 07:36:07 +0200 Message-ID: <87y58bs9x4.fsf@engster.org> References: <87pptptk9n.fsf@engster.org> <87eha4t7xz.fsf@engster.org> <8738qksz6l.fsf@engster.org> <837gfvua2r.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1376026635 29231 80.91.229.3 (9 Aug 2013 05:37:15 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 9 Aug 2013 05:37:15 +0000 (UTC) Cc: gundaetiapo@gmail.com, 15045@debbugs.gnu.org, eric@siege-engine.com To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Aug 09 07:37:17 2013 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1V7fO0-0005zt-Cc for geb-bug-gnu-emacs@m.gmane.org; Fri, 09 Aug 2013 07:37:16 +0200 Original-Received: from localhost ([::1]:42486 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V7fO0-0003MA-0T for geb-bug-gnu-emacs@m.gmane.org; Fri, 09 Aug 2013 01:37:16 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:53514) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V7fNt-0003Lh-BX for bug-gnu-emacs@gnu.org; Fri, 09 Aug 2013 01:37:13 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1V7fNm-00022h-RV for bug-gnu-emacs@gnu.org; Fri, 09 Aug 2013 01:37:09 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:54267) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V7fNm-00022R-Ny for bug-gnu-emacs@gnu.org; Fri, 09 Aug 2013 01:37:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1V7fNm-00035W-40 for bug-gnu-emacs@gnu.org; Fri, 09 Aug 2013 01:37:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: David Engster Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 09 Aug 2013 05:37:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 15045 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 15045-submit@debbugs.gnu.org id=B15045.137602657411778 (code B ref 15045); Fri, 09 Aug 2013 05:37:02 +0000 Original-Received: (at 15045) by debbugs.gnu.org; 9 Aug 2013 05:36:14 +0000 Original-Received: from localhost ([127.0.0.1]:48582 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1V7fMz-00033q-VP for submit@debbugs.gnu.org; Fri, 09 Aug 2013 01:36:14 -0400 Original-Received: from randomsample.de ([83.169.19.17]:54805) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1V7fMx-00033a-VC for 15045@debbugs.gnu.org; Fri, 09 Aug 2013 01:36:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=randomsample.de; s=a; h=Content-Type:MIME-Version:Message-ID:Date:References:In-Reply-To:Subject:Cc:To:From; bh=DfU8kQzPUde22LRsXaM1xLnet2H38x49Qk/1B+WJvrY=; b=uY1BXv1Rem98jT4qf7P7OXeZpc7hMoU110CXAsJfWIcMo2DKKHk9QQ79hhyA48Lgu8NkqbxqsfWJKH3+okNAwDA8lNgVzVVwVT0xv1BViGuIUIwFJduBtQvfPruQ9k9N; Original-Received: from dslc-082-083-054-159.pools.arcor-ip.net ([82.83.54.159] helo=spaten) by randomsample.de with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1V7fMu-0005lX-Ra; Fri, 09 Aug 2013 07:36:09 +0200 In-Reply-To: <837gfvua2r.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 09 Aug 2013 00:49:48 +0300") User-Agent: Gnus/5.130008 (Ma Gnus v0.8) Emacs/24.3 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:77123 Archived-At: Eli Zaretskii writes: >> From: David Engster >> Cc: Stefan Monnier , >> 15045@debbugs.gnu.org, "Eric M. Ludlam" , Eli >> Zaretskii >> Date: Thu, 08 Aug 2013 22:30:26 +0200 >> >> However, doing redisplay in timers is not nice. > > Why not? Because doing redisplay is a user-visible side effect, and in general, timers shouldn't have those. AFAICS, any function that calls things like `accept-process-output', `input-pending-p' or `sit-for' inside a `save-excursion' might get an unwanted scrolling effect if point is temporarily moved to some invisible location. In fact, I just understood another bug in speck-mode (which is similar to flycheck). I sometimes had unwanted scrolls there, too, and I now saw that those also happen at every full minute while typing. >> > Doesn't deferred jit locking necessarily have to call redisplay? >> >> I would think so, too. > > But since jit-lock-deferred-fontify only happens when Emacs is idle, > there's no problem with that, since Emacs enters redisplay also when > it is idle. I thought that the jit-lock timer is a non-idle timer, but you are right. -David