From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gregory Heytings Newsgroups: gmane.emacs.devel Subject: RE: [External] : Re: Concern about new binding. Date: Sat, 06 Feb 2021 09:29:53 +0000 Message-ID: <993b9ce74de32c5450c3@heytings.org> References: <87zh0mmr54.fsf@gmail.com> <83lfc53whk.fsf@gnu.org> <20210203180142.seu6o3i6u7jhkyrh@Ergus> <83eehx3to5.fsf@gnu.org> <20210203221628.xgvvxjvh56gyswba@Ergus> <20210204070033.pm4ido4hq7a6twif@Ergus> <83sg6brhyg.fsf@gnu.org> <5588fb25805d486be704@heytings.org> <5588fb2580d7e46863dd@heytings.org> <5588fb2580f248753c30@heytings.org> <5588fb25800032b1a06a@heytings.org> Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="13424"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Drew Adams Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Feb 06 10:31:20 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 1l8Jvz-0003QY-D5 for ged-emacs-devel@m.gmane-mx.org; Sat, 06 Feb 2021 10:31:19 +0100 Original-Received: from localhost ([::1]:42044 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l8Jvy-00071H-DE for ged-emacs-devel@m.gmane-mx.org; Sat, 06 Feb 2021 04:31:18 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:47866) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l8Jug-0006VG-KN for emacs-devel@gnu.org; Sat, 06 Feb 2021 04:29:58 -0500 Original-Received: from heytings.org ([95.142.160.155]:39058) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l8Juf-0000D5-11 for emacs-devel@gnu.org; Sat, 06 Feb 2021 04:29:58 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20210101; t=1612603794; bh=klXERIlnTFD8nTAqn0MSZ88FpnlDCiG+gh/CquIvZZo=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=MAiXKmbtVm2sy0qUN0Tglnw8Yi95gvI3DLc6yp79qfuJgCJtQsozgijO5ovrtBHwr 5zuqo/unFxqCLM48gFX9fFh7R+J1jb8Jtd3cQBhIk1ecApoY07F7HewlMZ7LNGn7V8 AeDPrFvsPxTvgw7ETILvB5nETdKx5LcwIP/wo4rgjwJzGoe2GnPY1wr32GtJyP43xd Qcv5ONSBjv0mD5xVd0zHBtcwo62SBgUiphZcfwRC9OVNg+7pmvruMxyqtvFaLZhUS1 vc74iKsh6G2N5ZWhZGO/qtuOoxRPT+s9S1bsOsr2773BaRQl1a9ntN3YCvtNzY6Sah ttVHLoL6DPFRg== In-Reply-To: Received-SPF: pass client-ip=95.142.160.155; envelope-from=gregory@heytings.org; helo=heytings.org X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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:264042 Archived-At: >> Having a complete keymap at the disposal of third-party libraries means >> that there are (at least) 26 letters free; each of them can be bound to >> a separate keymap. > > That's still much less than what can be bound to several such prefix > keys. > That's wrong, both from a practical and from a theoretical point of view. >From a practical point of view, the bindings in (B) are not deeper/longer than the bindings in (A): | (A) | (B) | |---------------|---------------| | C-x j | C-o j | | C-x j = f | C-o j = f | | C-x j t . % + | C-o j t . % + | | C-x 4 j | C-o 4 j | | C-x x : | C-o x : | | C-x x t e | C-o x t e | | C-x x t + b | C-o x t + b | >From a theoretical point of view: the number of available keys is, in both cases, aleph-zero. > > No argument for how you can put lots of stuff on a single prefix key can > overcome the fact that more prefix keys give you more than does one > prefix key. > "No argument can."? "A man hears what he wants to hear, and disregards the rest." (Simon & Garfunkel)