From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: pcase on multiple conditions Date: Sun, 30 Oct 2022 13:55:58 +0100 Message-ID: <875yg15v35.fsf@dataswamp.org> References: <87fsf82xzu.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5959"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:5TaXqAFfQBc6mfkv/bRNEqLIxpA= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun Oct 30 14:09:12 2022 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 1op83r-0001Jb-86 for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 30 Oct 2022 14:09:11 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1op83h-0007QN-Vw; Sun, 30 Oct 2022 09:09:02 -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 1op7zw-00055s-H5 for help-gnu-emacs@gnu.org; Sun, 30 Oct 2022 09:05:11 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1op7zt-0003xx-UZ for help-gnu-emacs@gnu.org; Sun, 30 Oct 2022 09:05:08 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1op7zq-000678-5G for help-gnu-emacs@gnu.org; Sun, 30 Oct 2022 14:05:02 +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-Mailman-Approved-At: Sun, 30 Oct 2022 09:09:00 -0400 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: , Original-Sender: "help-gnu-emacs" Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:140516 Archived-At: Michael Heerdegen wrote: >>> Is this the way to test for two values to perform the >>> same operation? >>> >>> (pcase complt >>> ((or 3 4) >>> (myfunc))) >> >> With `or' it will become true if any of values is true. > > `pcase' patterns are not values. Your interpretation of the > semantics of this `or` pattern is wrong. The syntax and semantics are not easy to understand but here is an example of `pcase' use that should be simple enough, at least what it does and how to use it. (defun insert-mail (&optional delim) (interactive "P") (pcase-let ((`(,delim-beg ,delim-end) (if delim '("<" ">") '("" "")))) (insert (format "%s%s%s" delim-beg user-mail-address delim-end)) )) ;; (insert-mail) ; incal@dataswamp.org ;; (insert-mail t) ; -- underground experts united https://dataswamp.org/~incal