From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Heime Newsgroups: gmane.emacs.help Subject: Re: cond construct for situation when a variable is t Date: Tue, 22 Aug 2023 12:18:10 +0000 Message-ID: References: <87o7j2d6yd.fsf@dataswamp.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="35352"; mail-complaints-to="usenet@ciao.gmane.io" Cc: help-gnu-emacs@gnu.org To: Emanuel Berg Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Aug 22 14:18:56 2023 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 1qYQLY-0008tj-4f for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 22 Aug 2023 14:18:56 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qYQL9-0006Km-Mw; Tue, 22 Aug 2023 08:18:32 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qYQL1-0006Jx-L3 for help-gnu-emacs@gnu.org; Tue, 22 Aug 2023 08:18:23 -0400 Original-Received: from mail-40141.protonmail.ch ([185.70.40.141]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qYQKx-0008DY-4c for help-gnu-emacs@gnu.org; Tue, 22 Aug 2023 08:18:23 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1692706692; x=1692965892; bh=75G/pnM0tzMd4lbVQRnt/PDOLuLeuM6lF0peJNcJT4g=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=MtjHyV8+wZkcmZI9lKr++wK1QZu/2gRLDcFJMKuG0eBKeRy7JkqWJwPIkLGohP8HT R7pekaWMkRtw29yF3j1SsMnrGH/9x/8kwuEyTI9+LUWFLpu83f1z9trcisrokxA+tH f8gZ6YwahS1XiyFm+8qY+O5x+vmQUAiQp39Zt8Q2diCEvDGc4IKUG9bjWWCVrhbt1f a9vsa6fga9GQrXuhnsN2j79Wt2Fcu4jY49ock/LqA5fvdW8MmRmxJmSDMernBO15Gi h+59gXvySlmEwneoSCdndpnheJKZcCuEaYzZ3htlBvmKSRQbVZUigYA8F5ksA2dcU9 1evRB8kdk5CTA== In-Reply-To: <87o7j2d6yd.fsf@dataswamp.org> Feedback-ID: 57735886:user:proton Received-SPF: pass client-ip=185.70.40.141; envelope-from=heimeborgia@protonmail.com; helo=mail-40141.protonmail.ch X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 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-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:144909 Archived-At: Sent with Proton Mail secure email. ------- Original Message ------- On Wednesday, August 23rd, 2023 at 12:10 AM, Emanuel Berg wrote: > Heime wrote: >=20 > > How can I use the 'cond' construct for the case when > > a variable is 't' ? >=20 >=20 > It could look like this but in practice one would probably put > it in another way, that looks better. >=20 > (setq var nil) >=20 > (cond > (var 1) > ((not var) 0) ) Which one looks better, the one you wrote with 0 and 1 ? Is it not recommended to use t ? =20 > > I can set a variable to boolean true using (setq var t), am > > I right ? >=20 >=20 > You can, you totally can. Just don't `setq' t to anything ;) Right, because one can set the letter t to something which would then screw up the idea that t means a truth condition.=20 =20 > -- > underground experts united > https://dataswamp.org/~incal