From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: result of completing-read contradicting require-match Date: Sat, 2 Jul 2022 23:07:09 +0300 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39010"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/+ () (2022-05-21) Cc: carlmarcos@tutanota.com, Help Gnu Emacs To: Yuri Khan Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sat Jul 02 22:08:37 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 1o7jPx-0009yI-LN for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 02 Jul 2022 22:08:37 +0200 Original-Received: from localhost ([::1]:51754 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o7jPw-0006wL-1P for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 02 Jul 2022 16:08:36 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41558) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o7jPB-0006wC-JN for help-gnu-emacs@gnu.org; Sat, 02 Jul 2022 16:07:49 -0400 Original-Received: from stw1.rcdrun.com ([217.170.207.13]:53423) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o7jP7-0000X5-1X for help-gnu-emacs@gnu.org; Sat, 02 Jul 2022 16:07:49 -0400 Original-Received: from localhost ([::ffff:102.87.29.106]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 0000000000087C57.0000000062C0A58C.0000021A; Sat, 02 Jul 2022 13:07:39 -0700 Mail-Followup-To: Yuri Khan , carlmarcos@tutanota.com, Help Gnu Emacs Content-Disposition: inline In-Reply-To: Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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" Xref: news.gmane.io gmane.emacs.help:138265 Archived-At: * Yuri Khan [2022-07-02 22:56]: > On Sun, 3 Jul 2022 at 02:29, Jean Louis wrote: > > > REQUIRE-MATCH can take the following values: > > - a function, which will be called with the input as the parameter. > > If it returns a non-nil value, the minibuffer is exited with that value. > > > other way to persist asking until you get the true result is here: > > > > (defun rcd-repeat-until-not-empty-string (function &rest args) > > "Repeat FUNCTION with optional ARGS until result is not empty string." > > (let ((result)) > > (while (string-empty-p (setq result (apply function args)))) > > result)) > > Based on the quoted part of the docstring, you could probably pass a > function that returns t for an allowed value, and nil for disallowed > values, including an empty string or nil. Do you mean from `completing-read': "- a function, which will be called with the input as the parameter. If it returns a non-nil value, the minibuffer is exited with that value." Do you mean this: (let* ((cseq '("name" "name-mode")) (csel (completing-read "Type: " cseq nil FUNCTION-HERE? nil ))) csel) and what would be value name for function to check it? -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns In support of Richard M. Stallman https://stallmansupport.org/