From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: ludo@gnu.org (Ludovic =?iso-8859-1?Q?Court=E8s?=) Newsgroups: gmane.lisp.guile.devel Subject: Re: Set debug output width in REPL Date: Fri, 25 Feb 2011 00:28:19 +0100 Message-ID: <87bp21qagc.fsf@gnu.org> References: <309828.81527.qm@web37907.mail.mud.yahoo.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: dough.gmane.org 1298590125 12085 80.91.229.12 (24 Feb 2011 23:28:45 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 24 Feb 2011 23:28:45 +0000 (UTC) To: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Fri Feb 25 00:28:41 2011 Return-path: Envelope-to: guile-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 1Pskbx-0007Ky-Cj for guile-devel@m.gmane.org; Fri, 25 Feb 2011 00:28:41 +0100 Original-Received: from localhost ([127.0.0.1]:33685 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Pskbw-0000sq-Tp for guile-devel@m.gmane.org; Thu, 24 Feb 2011 18:28:40 -0500 Original-Received: from [140.186.70.92] (port=43840 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Pskbq-0000sa-Ei for guile-devel@gnu.org; Thu, 24 Feb 2011 18:28:35 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Pskbp-0003EK-7U for guile-devel@gnu.org; Thu, 24 Feb 2011 18:28:34 -0500 Original-Received: from lo.gmane.org ([80.91.229.12]:58489) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Pskbp-0003Dz-20 for guile-devel@gnu.org; Thu, 24 Feb 2011 18:28:33 -0500 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1Pskbm-0007FY-9E for guile-devel@gnu.org; Fri, 25 Feb 2011 00:28:30 +0100 Original-Received: from reverse-83.fdn.fr ([80.67.176.83]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 25 Feb 2011 00:28:30 +0100 Original-Received: from ludo by reverse-83.fdn.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 25 Feb 2011 00:28:30 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 41 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: reverse-83.fdn.fr X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 7 =?iso-8859-1?Q?Vent=F4se?= an 219 de la =?iso-8859-1?Q?R=E9volution?= X-PGP-Key-ID: 0xEA52ECF4 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 83C4 F8E5 10A3 3B4C 5BEA D15D 77DD 95E2 EA52 ECF4 X-OS: x86_64-unknown-linux-gnu User-Agent: Gnus/5.110011 (No Gnus v0.11) Emacs/23.2 (gnu/linux) Cancel-Lock: sha1:00p9FJcr8P9v5Ffa/uVIZTGbv5Y= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 80.91.229.12 X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Developers list for Guile, the GNU extensibility library" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Errors-To: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.devel:11710 Archived-At: Hi, Mike Gran writes: >> From:Mark H Weaver > >> >> Mark wrote: >> > It seems to me that *width* should not be a global variable, but rather >> > a per-repl setting. It probably belongs in the options field of the >> > record, no? See "repl-default-options" in >> repl/common.scm. [...] > How common is the use case where REPLs for a single Guile session appear > in terminals of different width? Think of ‘--listen’. >> Mark also wrote: >> Better yet, maybe it should be an optional attribute of the output port, >> which would allow pretty-print and truncated-print to use it as well. >> Output ports attached to terminals could determine the terminal width >> from the OS, on systems that support it. I like the idea of using the terminal’s width, but I dislike the idea of having it a property of the port, since it really seems orthogonal to me. > [...] If one wanted to have a port automatically > query its terminal for the width, one could either (IIRC) catch the SIGWINCH > signalor could call a getenv/tget function before printing a pretty-print or > truncated-print. How about having a per-REPL setting that’s automatically set to the terminal’s width by default? What’s the exact call to get the width? Thanks, Ludo’.