From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#17497: 24.4.50; TTY menu glitches Date: Wed, 04 Jun 2014 09:06:11 -0400 Message-ID: References: <83vbslbuqr.fsf@gnu.org> <20140531200947.GA779@aerie.jexium-island.net> <83lhtgbrd6.fsf@gnu.org> <20140601152657.GA15078@aerie.jexium-island.net> <838upgbnra.fsf@gnu.org> <20140601171244.GA9362@aerie.jexium-island.net> <20140601171817.GB9362@aerie.jexium-island.net> <20140603184749.GA3646@aerie.jexium-island.net> <20140604083102.GA4928@aerie.jexium-island.net> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1401889317 17927 80.91.229.3 (4 Jun 2014 13:41:57 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 4 Jun 2014 13:41:57 +0000 (UTC) Cc: 17497@debbugs.gnu.org To: Thomas Dickey Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jun 04 15:41:50 2014 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 1WsBRs-00048G-Gy for geb-bug-gnu-emacs@m.gmane.org; Wed, 04 Jun 2014 15:41:48 +0200 Original-Received: from localhost ([::1]:33322 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WsBRs-0007Bo-3i for geb-bug-gnu-emacs@m.gmane.org; Wed, 04 Jun 2014 09:41:48 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:34208) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WsAuN-0002t6-5y for bug-gnu-emacs@gnu.org; Wed, 04 Jun 2014 09:07:19 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WsAuF-0001vC-FU for bug-gnu-emacs@gnu.org; Wed, 04 Jun 2014 09:07:11 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:44397) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WsAuF-0001uu-Ba for bug-gnu-emacs@gnu.org; Wed, 04 Jun 2014 09:07:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1WsAuE-0002O5-DF for bug-gnu-emacs@gnu.org; Wed, 04 Jun 2014 09:07:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 04 Jun 2014 13:07:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17497 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 17497-submit@debbugs.gnu.org id=B17497.14018871789095 (code B ref 17497); Wed, 04 Jun 2014 13:07:02 +0000 Original-Received: (at 17497) by debbugs.gnu.org; 4 Jun 2014 13:06:18 +0000 Original-Received: from localhost ([127.0.0.1]:43274 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WsAtW-0002Mc-39 for submit@debbugs.gnu.org; Wed, 04 Jun 2014 09:06:18 -0400 Original-Received: from pruche.dit.umontreal.ca ([132.204.246.22]:33094) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WsAtT-0002MQ-8Y for 17497@debbugs.gnu.org; Wed, 04 Jun 2014 09:06:16 -0400 Original-Received: from fmsmemgm.homelinux.net (lechon.iro.umontreal.ca [132.204.27.242]) by pruche.dit.umontreal.ca (8.14.1/8.14.1) with ESMTP id s54D6BbQ001307; Wed, 4 Jun 2014 09:06:13 -0400 Original-Received: by fmsmemgm.homelinux.net (Postfix, from userid 20848) id 948E5AE23E; Wed, 4 Jun 2014 09:06:11 -0400 (EDT) In-Reply-To: <20140604083102.GA4928@aerie.jexium-island.net> (Thomas Dickey's message of "Wed, 04 Jun 2014 04:31:02 -0400") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux) X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 1 Rules triggered RV4963=0 X-NAI-Spam-Version: 2.3.0.9378 : core <4963> : inlines <965> : streams <1203118> : uri <1774994> 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:89975 Archived-At: >> > repeating: if the cursor-key sequence of characters is misinterpreted >> > (for example due to timeouts), then fragments of the sequences will >> > echo as unexpected characters. >> I do not understand what that means. By "cursor-key sequence of >> characters" do you mean the escape sequence sent by the terminal to >> Emacs or the cursor-motion escape sequences sent from Emacs to the >> text terminal? > From the terminal to Emacs. > Cursor up typically is > ESC [ A > three characters. But that's a completely different problem from the one we're investigating. The problem is about how the terminal emulator reacts to Emacs's output, not how Emacs reacts to the terminal emulator's output. > Curses applications behave differently if you type those > three characters, one-by-one, because of timing. We try pretty hard to avoid using such timeouts in Emacs, so by and large this doesn't apply to Emacs at all. > That's part of it. Usually the input (from the terminal to the application) > is more important. But the present bug-report is about the other case. To repeat the problem: - a particular run of Emacs sends bytes to the terminal emulator, and the result doesn't look right. - yet when we replay the same directly to the terminal, the result looks correct. Note also that (other than the display), the state of Emacs at the end of the test is correct (and forcing a redisplay indeed fixes the display), so the problem is not in Emacs misinterpreting input because of timing issues. Stefan