From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ulrich Mueller Newsgroups: gmane.emacs.devel Subject: Re: UTF-32 Date: Fri, 07 Jul 2023 10:20:07 +0200 Message-ID: References: <83wo1p73d2.fsf@gnu.org> <6ccde339-2bf1-3a4d-61bb-734046bf02d5@cs.ucla.edu> <83r1rx6vgv.fsf@gnu.org> <83lfi56te9.fsf@gnu.org> <83cz16k2kx.fsf@gnu.org> <871qhlkywu.fsf@yahoo.com> <83zg48fa46.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="6375"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.3 (gnu/linux) Cc: emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Jul 07 10:21:18 2023 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 1qHgiM-0001Tw-34 for ged-emacs-devel@m.gmane-mx.org; Fri, 07 Jul 2023 10:21:18 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qHghZ-0005uZ-9T; Fri, 07 Jul 2023 04:20:31 -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 1qHghU-0005s6-Fd for emacs-devel@gnu.org; Fri, 07 Jul 2023 04:20:25 -0400 Original-Received: from mail.gentoo.org ([2001:470:ea4a:1:5054:ff:fec7:86e4] helo=smtp.gentoo.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_CHACHA20_POLY1305:256) (Exim 4.90_1) (envelope-from ) id 1qHghN-0001kz-7p; Fri, 07 Jul 2023 04:20:23 -0400 In-Reply-To: <83zg48fa46.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 07 Jul 2023 10:34:33 +0300") Received-SPF: pass client-ip=2001:470:ea4a:1:5054:ff:fec7:86e4; envelope-from=ulm@gentoo.org; helo=smtp.gentoo.org 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, RCVD_IN_DNSWL_MED=-2.3, 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: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:307550 Archived-At: >>>>> On Fri, 07 Jul 2023, Eli Zaretskii wrote: >> On a different tangent, Emacs doesn't seem to know about UTF-32, which >> I find a little surprising. >> >> Is there simply no need for that encoding, or am I missing something? > There's no need. We don't support character codepoints that are wider > than 32 bits. IIUC UTF-32 (aka UCS-4) encodes only Unicode codepoints, and it encodes every character as 4 bytes. https://www.unicode.org/reports/tr19/tr19-9.html