From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#49809: [PATCH] Add macro 'pcase-setq' Date: Fri, 13 Aug 2021 01:17:23 -0400 Message-ID: References: <07ad5892-3343-4c35-00e3-9753bca5f67b@protonmail.com> <87eeb6dmvo.fsf@web.de> <87czqjod9y.fsf@gnus.org> <87wnor5gxb.fsf@web.de> <87r1eyvys4.fsf@web.de> Reply-To: Stefan Monnier Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="3984"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: okamsn@protonmail.com, 49809@debbugs.gnu.org, Lars Ingebrigtsen To: Michael Heerdegen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Aug 13 07:18:10 2021 Return-path: Envelope-to: geb-bug-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 1mEPa6-0000pJ-7p for geb-bug-gnu-emacs@m.gmane-mx.org; 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Fri, 13 Aug 2021 05:18:01 +0000 Original-Received: (at 49809) by debbugs.gnu.org; 13 Aug 2021 05:17:45 +0000 Original-Received: from localhost ([127.0.0.1]:40342 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mEPZd-00058D-3r for submit@debbugs.gnu.org; Fri, 13 Aug 2021 01:17:44 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:63766) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mEPZX-00057u-Ge for 49809@debbugs.gnu.org; Fri, 13 Aug 2021 01:17:39 -0400 Original-Received: from pmg3.iro.umontreal.ca (localhost [127.0.0.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 5BEBB440871; Fri, 13 Aug 2021 01:17:29 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 1F3BE44083C; Fri, 13 Aug 2021 01:17:24 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1628831844; bh=6R4YwPEUkXkwBDGSStsw+AseWlkC7R3XZ12H/amryZM=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=CuLKjPtNCM4FmK89xHzYt8JGUPjGX3V3f9tErS/+u+Gs9XE8s0e2IBJAdRTHuTkY4 UbRlG5QrolPfKu5LBneHhmDQ9ZCE9A/wJSX/sB9eGmSPGVHLpXZnn4Jl47023Tn9lZ 6cHB4HZshpQ+eXPDMOblD9yHLJXTpzGZatTIG7GuK0Z9n3NnO24mNu2OJt3B++GePC siL7u9Fyf2Cokl0Nf7If48exUpAuTV1/17H7YZZF/3DggSH/iwDONDdeB70ImjkyJS tbKuGP1DPBszdEMmqiKlpcabVBUrDSnpu/qRhGhuyHk3EWVN0NKDmSNkvjiKkTQMZZ Yo1YaNAEUdHzw== Original-Received: from alfajor (104-222-120-40.cpe.teksavvy.com [104.222.120.40]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id D2F9A12029C; Fri, 13 Aug 2021 01:17:23 -0400 (EDT) In-Reply-To: <87r1eyvys4.fsf@web.de> (Michael Heerdegen's message of "Fri, 13 Aug 2021 04:55:39 +0200") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:211713 Archived-At: Michael Heerdegen [2021-08-13 04:55:39] wrote: > Stefan Monnier writes: >> > (pcase-setq (or `((,a) [(,b)]) >> > x) >> > '((1) [(2)])) >> > (list a b x)) ;; ==> (1 2 nil) >> >> If you want to do different things depending on which pattern matches >> you should use `pcase` rather than `pcase-setq` (or `pcase-let` for >> that matter). > > Is using a pattern like > > (or `[,a ,b] `[,a ,b ,_]) > > ok? Of course, tho it does the same thing as just `[,a ,b], only less efficiently. Stefan