From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: hline Date: Fri, 08 Jan 2021 00:08:51 +0100 Message-ID: <87zh1kny4c.fsf@zoho.eu> References: <87sg7ds1wp.fsf@zoho.eu> <87a6tksrdj.fsf@mbork.pl> Reply-To: Emanuel Berg Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39109"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:p0dONa+8PRWB45PtL2XqAqmG45c= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jan 08 00:12:51 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kxeSZ-000A5S-BJ for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 08 Jan 2021 00:12:51 +0100 Original-Received: from localhost ([::1]:33064 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kxeSY-0007IX-D7 for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 07 Jan 2021 18:12:50 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:57304) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kxeSA-0007GD-Lp for help-gnu-emacs@gnu.org; Thu, 07 Jan 2021 18:12:26 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:45676) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kxeS8-0004xX-U9 for help-gnu-emacs@gnu.org; Thu, 07 Jan 2021 18:12:26 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1kxeS5-0009Y7-SD for help-gnu-emacs@gnu.org; Fri, 08 Jan 2021 00:12:21 +0100 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.248, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:127059 Archived-At: Marcin Borkowski wrote: >> (defun hline (&optional char) >> (interactive "P") >> (let ((len (- (window-width) (current-column) 1)) >> (c (or char ?-)) ) >> (insert (make-string len c)) )) > > Funny how I wrote an almost identical function just two days ago... > Though I used (1- (window-width)), since in my use case I knew that > (current-column) would be zero. > > Anybody knows why it is necessary to subtract 1? :O I don't understand why YOU ask this? But for everyone else's information, it can be better explained like this, I think, than the examples I just posted. If we want to cover the distance between A to B on a line, this distance is B - A. However B is reported not the _ desired B but B + 1. So by subtracting 1 we get the real B |_| :) -- underground experts united http://user.it.uu.se/~embe8573 https://dataswamp.org/~incal