From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.devel Subject: Re: Always-true predicate? Date: Fri, 19 Feb 2021 15:05:47 +0100 Message-ID: <87czwwrw3o.fsf@gnus.org> References: <875z2qoqc6.fsf@gnus.org> <87eehcsal4.fsf@gmail.com> <83zh002zjm.fsf@gnu.org> <83k0r42nca.fsf@gnu.org> <87lfbkrx9r.fsf@gnus.org> <83eehc2mg9.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="34631"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: rpluim@gmail.com, emacs-devel@gnu.org, stefankangas@gmail.com, rms@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Feb 19 15:07:04 2021 Return-path: Envelope-to: ged-emacs-devel@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 1lD6Qy-0008q4-3O for ged-emacs-devel@m.gmane-mx.org; Fri, 19 Feb 2021 15:07:04 +0100 Original-Received: from localhost ([::1]:37702 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lD6Qx-0004lL-40 for ged-emacs-devel@m.gmane-mx.org; Fri, 19 Feb 2021 09:07:03 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:52030) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lD6Pv-0004J6-9P for emacs-devel@gnu.org; Fri, 19 Feb 2021 09:05:59 -0500 Original-Received: from quimby.gnus.org ([2a01:4f9:2b:f0f::2]:49716) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lD6Pt-0002x8-JM; Fri, 19 Feb 2021 09:05:59 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=m7hSTDGhnbcfgWGo6ZIjWiM2jKLztqaKcYmBja8s1Hg=; b=RwdWzETOaewfQhnVGdMJBAIPF8 FQkUDqfXoEJEPBlZ63AfKbKnENNjmeu7Ksfi8wU3v7eFOfzf4lP7XlZ0V7kr8noqbIwZ1OIP2Ckrl D7xWDywbpqlngLwhWoxhbdpxxoS1rz38jRQcg0vp8A2sAYYMZQ9MM9p/aJWuRe/kKVgc=; Original-Received: from cm-84.212.202.86.getinternet.no ([84.212.202.86] helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lD6Pk-0002eX-Kl; Fri, 19 Feb 2021 15:05:53 +0100 Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAgMAAAAqbBEUAAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAADFBMVEXe0sSdel48JR3/ //8L91rsAAAAAWJLR0QDEQxM8gAAAAd0SU1FB+UCEw4BCkFhftUAAAGISURBVCjPTdK/btswEAbw j4IVIJsMyAWsJyj6FHSQGGgmpTCFSLNtxHwKL901mB48aTAF8XvK3skFWk766f6AdxIWxasBrIUe RQ5bb5abB7JCUPxFXthiWawWM7AATCE1brV0Dh/GObcD6cnfDCQTPDvyxnB44Ha7ki76GbERNOyO E46cqlETm3oQpFKLfZAbtZ6l9OOVHxZtRSfPjGwA/8J3RRpHQZ9yTZOYxWFYmypqKL5h+P5sfGjI Ma0xPT8Zpl8aKtEZkzEtpSzusDkji5+r9xl9gWzAekuGHU4yZI9v0iFekFtFJhdPFrYUWPNCtrUk AT2QyXxy7RwIwBPZWdyNRXNWXGsQO+Q1KkEPnve6Q2nNARyc9DCyL94FrZ3ryR38vbdf0AAvst6+ YRAkvgri0ad5cCtIh1OaV2JlvfRBAyktoO+cIqxLxRgV7uc/JPf2qQ26JJ2D2yaNRIVzzSS47OVT Rec6TZv2fkb7JTj1P4KUPNJOtopJfoOtjJDaupIkwRn/nz/A5eciy6xF5wAAACV0RVh0ZGF0ZTpj cmVhdGUAMjAyMS0wMi0xOVQxNDowMTowOSswMDowMBIxZFMAAAAldEVYdGRhdGU6bW9kaWZ5ADIw MjEtMDItMTlUMTQ6MDE6MDkrMDA6MDBjbNzvAAAAAElFTkSuQmCC X-Now-Playing: Kate Bush's _The Dreaming_: "Pull Out The Pin" In-Reply-To: <83eehc2mg9.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 19 Feb 2021 15:53:26 +0200") Received-SPF: pass client-ip=2a01:4f9:2b:f0f::2; envelope-from=larsi@gnus.org; helo=quimby.gnus.org 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:265254 Archived-At: Eli Zaretskii writes: > But my main gripe is about options whose values can only be functions, > and nothing else. No one will convince me that Emacs developers > cannot come up with meaningful values that aren't functions for some > option. Yeah, that's true. Having nil/t values is often handy. I guess the only reason for not adding those is laziness. I.e., every implementation of these options end up looking like (pcase foo-option ('nil nil) ('t t) (_ (funcall foo-option))) or something. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no