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 Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: Completion with different values and displayed things Date: Sat, 16 Mar 2024 11:33:47 -0400 Message-ID: References: <87h6h6iy4s.fsf@mbork.pl> 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="30652"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:5ej2UbZ+K36qiK1ZG5qbar2x9Yw= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sat Mar 16 16:34:31 2024 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 1rlW3L-0007q8-Kk for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 16 Mar 2024 16:34:31 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rlW2n-0001Tf-Jx; Sat, 16 Mar 2024 11:33:57 -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 1rlW2m-0001TT-Ox for help-gnu-emacs@gnu.org; Sat, 16 Mar 2024 11:33:56 -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 1rlW2l-0004L7-CJ for help-gnu-emacs@gnu.org; Sat, 16 Mar 2024 11:33:56 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1rlW2i-0006rp-7x for help-gnu-emacs@gnu.org; Sat, 16 Mar 2024 16:33:52 +0100 X-Injected-Via-Gmane: http://gmane.org/ 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-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:146106 Archived-At: > I want my completion to: > - complete on :name > - display also :description (there could be two different "things" with > the same :name's but different :description's) The completion mechanism "funnels" everything through the string the users type (either directly or via completion), so if completion in only based on `:name`s (i.e. the strings the user can enter will only ever take the form of one of the `:name`s), then there is no way for the users to specify which of several entries they meant if those entries share the same `:name`. IOW, make sure the thing on which they complete is unique. Also, the completion API doesn't conveniently let you display just the `:description`: you can use the `annotation` metadata (see `completion-metadata`) to *add* the `:description` to the thing on which the users complete (e.g. the `:name`), but not to replace it. As for returning the `:id`, just do it manually after the call to `completing-read` by searching for the matching entry and extracting its `:id`. Stefan