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: completing-read depricated initial-input Date: Thu, 23 Jun 2022 23:06:07 +0200 Message-ID: <87letnhyyo.fsf@dataswamp.org> References: <86r13hubaw.fsf_-_@gnu.org> <86letphfke.fsf_-_@gnu.org> <86mte3lsj2.fsf_-_@gnu.org> <871qvfoce1.fsf@web.de> <865ykrzigy.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="4776"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:SX52WVuNQeZ2H/sNMXfJJe1O8EM= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Thu Jun 23 23:07:01 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 1o4U2W-00011D-UB for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 23 Jun 2022 23:07:00 +0200 Original-Received: from localhost ([::1]:41556 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o4U2V-0008Vd-Hi for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 23 Jun 2022 17:06:59 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:48780) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o4U1r-0008UO-9O for help-gnu-emacs@gnu.org; Thu, 23 Jun 2022 17:06:19 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:40896) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o4U1p-0001mf-3e for help-gnu-emacs@gnu.org; Thu, 23 Jun 2022 17:06:18 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1o4U1l-0000BD-M0 for help-gnu-emacs@gnu.org; Thu, 23 Jun 2022 23:06:13 +0200 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=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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:138040 Archived-At: Arash Esbati wrote: > If you have a common prefix which should be shown in the > candidates list, in (La)TeX for instance: > > (let ((list '("iffalse" "iftrue" "else" "fi"))) > (completing-read "Macro: " > (mapcar (lambda (x) (concat "\\" x)) list) > nil nil "\\")) > > Something like this looks odd: > > (let ((list '("iffalse" "iftrue" "else" "fi"))) > (completing-read "Macro: \\" list)) Neither looks good but the second is much less complicated and error-prone and also more clear since there isn't the two nil arguments. If it is just about identifying a common and thus mandatory prefix `completing-read' could just as well do it, the alternatives could then all retain their intended and complete form. It's Thursday today, not (format "Thurs%s" shared-day-suffix) -- underground experts united https://dataswamp.org/~incal