From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.devel Subject: Re: read a reply from the terminal Date: Sun, 15 Jul 2007 10:18:51 +0200 Message-ID: References: <200707140242.l6E2gpBC015778@oogie-boogie.ics.uci.edu> <200707150034.l6F0YYxT013883@oogie-boogie.ics.uci.edu> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: sea.gmane.org 1184487553 19009 80.91.229.12 (15 Jul 2007 08:19:13 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Sun, 15 Jul 2007 08:19:13 +0000 (UTC) Cc: Stefan Monnier , emacs-devel@gnu.org To: Dan Nicolaescu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Jul 15 10:19:11 2007 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 4.50) id 1I9zJt-000271-Ka for ged-emacs-devel@m.gmane.org; Sun, 15 Jul 2007 10:19:09 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1I9zJs-0003C5-Pl for ged-emacs-devel@m.gmane.org; Sun, 15 Jul 2007 04:19:08 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1I9zJp-0003Bs-C5 for emacs-devel@gnu.org; Sun, 15 Jul 2007 04:19:05 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1I9zJl-0003BU-IA for emacs-devel@gnu.org; Sun, 15 Jul 2007 04:19:04 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1I9zJl-0003BR-BO for emacs-devel@gnu.org; Sun, 15 Jul 2007 04:19:01 -0400 Original-Received: from ns.suse.de ([195.135.220.2] helo=mx1.suse.de) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1I9zJk-0007h9-SM for emacs-devel@gnu.org; Sun, 15 Jul 2007 04:19:01 -0400 Original-Received: from Relay1.suse.de (mail2.suse.de [195.135.221.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id 31557122D5; Sun, 15 Jul 2007 10:18:57 +0200 (CEST) X-Yow: I need "RONDO". In-Reply-To: <200707150034.l6F0YYxT013883@oogie-boogie.ics.uci.edu> (Dan Nicolaescu's message of "Sat\, 14 Jul 2007 17\:34\:34 -0700") User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.1 (gnu/linux) X-detected-kernel: Linux 2.4-2.6 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:74807 Archived-At: Dan Nicolaescu writes: > ! ;; Try to find out the type of terminal by sending a "Secondary > ! ;; Device Attributes (DA)" query. > ! (send-string-to-terminal "\e[>0c") > !=20 > ! ;; The reply should be of the form: \e [ > NUMBER1 ; NUMBER2 ; = NUMBER3 c > ! (when (equal (read-event) ?\e) > ! (when (equal (read-event) 91) > ! (while (not (equal (setq chr (read-event)) ?c)) > ! (setq str (concat str (string chr)))) What if the terminal is ignoring the query, or there is some other communication problem, wouldn't that mean that read-event would hang here? IMHO the calls should use the timeout feature. Andreas. --=20 Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux Products GmbH, Maxfeldstra=DFe 5, 90409 N=FCrnberg, Germany PGP key fingerprint =3D 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED= 5 "And now for something completely different."