From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Daniel Mendler Newsgroups: gmane.emacs.devel Subject: Re: Stepping Back: A Wealth Of Completion systems Re: [ELPA] New package: vertico Date: Wed, 7 Apr 2021 14:56:48 +0200 Message-ID: <302b2c33-1638-62c0-da23-23b1a62bb719@mendler.net> References: <9c9af088-580f-9fb1-4d79-237a74ce605c@inventati.org> <874kgkxxs0.fsf@posteo.net> <3ec7e2e58a100426a22e@heytings.org> <871rbmjmwx.fsf@fastmail.fm> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="11574"; mail-complaints-to="usenet@ciao.gmane.io" To: Joost Kremers , emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Apr 07 15:06:45 2021 Return-path: Envelope-to: ged-emacs-devel@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 1lU7tK-0002sn-H8 for ged-emacs-devel@m.gmane-mx.org; Wed, 07 Apr 2021 15:06:42 +0200 Original-Received: from localhost ([::1]:39360 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lU7tJ-0000Fl-Eb for ged-emacs-devel@m.gmane-mx.org; Wed, 07 Apr 2021 09:06:41 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:33708) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lU7k7-00025O-Fw for emacs-devel@gnu.org; Wed, 07 Apr 2021 08:57:11 -0400 Original-Received: from server.qxqx.de ([2a01:4f8:121:346::180]:50879 helo=mail.qxqx.de) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lU7k4-0000fI-VH for emacs-devel@gnu.org; Wed, 07 Apr 2021 08:57:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=qxqx.de; s=mail1392553390; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:References:To:Subject:Sender:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=FFWBNjNwWAr9KSvSohuMFrYWi1NdI2RSsrjmvSrrzQs=; b=VO7tapWLLsp8ZXgPtBZA1zHMRZ U14rOuZy+oCbYC/CLUa5MqN4cm6CVAoVD/xBPVldigJQA+R0OtMzJ9s/BaDutE0NSh2DP9qVTIJHw xhecqvjl/oP0n4E4W6ugjb2GzkGdBOFkG4ZBKqwjEJU2uJHLpG4cRMyq6fDMlqz0GHZs=; In-Reply-To: <871rbmjmwx.fsf@fastmail.fm> Content-Language: en-US Received-SPF: pass client-ip=2a01:4f8:121:346::180; envelope-from=daniel@mendler.net; helo=mail.qxqx.de X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Wed, 07 Apr 2021 09:04:36 -0400 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:267514 Archived-At: > On Wed, Apr 07 2021, Gregory Heytings wrote: >> I've been thinking about this, and I'm not sure I understand what the real >> difference between "completing" and "selecting" is. Do I understand >> correctly that the difference is between, for example, expanding command names >> (completing), and choosing an emoji in a list (selecting)? > > Yeah, I don't get it either. If I'm completing a command name, I can also say > that I'm selecting a command name from all available command names. Or when I'm > completing a file name, I'm selecting a file from all the files on my system. I agree with both of you. I also don't see a significant difference between `completing-read' and a potential `selecting-read'. However, the `completing-read' API could benefit from a few small improvements as I proposed in my other mail. Given all the experience gained one may consider introducing a `completing-read2' which incorporates all the lessons learned and offers an API, which is a bit easier to use. But maybe the costs would outweigh the benefits and applying incremental improvements is actually the better approach, see for example the recently added `affixation-function'. Daniel Mendler