From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: David De La Harpe Golden Newsgroups: gmane.emacs.devel Subject: Re: The unwarranted scrolling assumption Date: Sat, 19 Jun 2010 23:16:48 +0100 Message-ID: <4C1D41D0.1010309@harpegolden.net> References: <83iq5hiiin.fsf@gnu.org> <83fx0lihov.fsf@gnu.org> <838w6cixma.fsf@gnu.org> <83y6ech1oo.fsf@gnu.org> <83ocf8gx7e.fsf@gnu.org> <83fx0jgxk7.fsf@gnu.org> <83eig3gspa.fsf@gnu.org> <83bpb7gp2g.fsf@gnu.org> <837hlvglvh.fsf@gnu.org> <834ogzglaj.fsf@gnu.org> <8339wjgg8w.fsf@gnu.org> <83y6eagb7g.fsf@gnu.org> <4C1D24E3.5080402@harpegolden.net> <83sk4ig1t7.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1276985825 27250 80.91.229.12 (19 Jun 2010 22:17:05 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 19 Jun 2010 22:17:05 +0000 (UTC) Cc: emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Jun 20 00:17:04 2010 connect(): No such file or directory Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1OQ6LX-0007hd-PB for ged-emacs-devel@m.gmane.org; Sun, 20 Jun 2010 00:17:04 +0200 Original-Received: from localhost ([127.0.0.1]:41816 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OQ6LW-0003wS-RJ for ged-emacs-devel@m.gmane.org; Sat, 19 Jun 2010 18:17:02 -0400 Original-Received: from [140.186.70.92] (port=40799 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OQ6LQ-0003wN-Fp for emacs-devel@gnu.org; Sat, 19 Jun 2010 18:16:57 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OQ6LP-0002a5-Gb for emacs-devel@gnu.org; Sat, 19 Jun 2010 18:16:56 -0400 Original-Received: from harpegolden.net ([65.99.215.13]:46854) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OQ6LM-0002ZX-NT; Sat, 19 Jun 2010 18:16:52 -0400 Original-Received: from [87.198.55.90] (87-198-55-90.ptr.magnet.ie [87.198.55.90]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "David De La Harpe Golden", Issuer "David De La Harpe Golden Personal CA rev 3" (verified OK)) by harpegolden.net (Postfix) with ESMTP id A36D19BE6; Sat, 19 Jun 2010 23:16:50 +0100 (IST) User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100515 Icedove/3.0.4 In-Reply-To: <83sk4ig1t7.fsf@gnu.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:126260 Archived-At: On 19/06/10 22:17, Eli Zaretskii wrote: >> Date: Sat, 19 Jun 2010 21:13:23 +0100 >> From: David De La Harpe Golden >> >> I can still get it to happen easily by ramping up keyboard repeat rate, >> but it happens quite often on HELLO even at reasonable rates. > > Thanks for testing. > > HELLO turns on bidi-display-reordering, which affects scrolling > through problems that are specific to the bidi redisplay. Can you > still see recentering if you turn bidi-display-reordering off in > HELLO, like this: > > M-: (setq bidi-display-reordering nil) > > ? Yes. And to be clear: it happens on files other than HELLO too, including window.c. It just happens particularly often on HELLO. Aside: HELLO looks distinctly odd around the arabic lines in emacs -Q but not with my normal config. Probably independent from the immediate scrolling issue and possibly font-dependent, I'll file a separate bug.