From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: UTF-32 Date: Fri, 07 Jul 2023 13:16:25 +0300 Message-ID: <83y1jsf2me.fsf@gnu.org> 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> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="1762"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Ulrich Mueller Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Jul 07 12:17:45 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 1qHiX2-0000Fg-NJ for ged-emacs-devel@m.gmane-mx.org; Fri, 07 Jul 2023 12:17:44 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qHiVm-0000eC-Ft; Fri, 07 Jul 2023 06:16:26 -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 1qHiVk-0000dv-L0 for emacs-devel@gnu.org; Fri, 07 Jul 2023 06:16:24 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qHiVk-00044o-37; Fri, 07 Jul 2023 06:16:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=1tWILePNld5+jDhUANpg1r6m5qrXPm5aPR/fmVkI77U=; b=BBoi//t/UQG0 WLfLNTD+5MwQLPAIip101mLDYa3OmTuITRddxJ66f/iaVgxlTOXWgT7qsUF3iYSVb7V4Rwmv8NMxT bJLB2cZ+cHQTN45CSSoqCfNe4XN1+YxFkyTWnYPIeOOUveXGPoPL5zA0IueK1S8TaAq3b8OQdd2bx f0RBatNsoPSa54QPLbh9IzqLehPrvpWKfhFHO9cOFY2pJn4itoWcbq8R4oBfj3IZPaZUP7Dpk+Udw VoSvrC/4XbSa7qvigbm2W30kY4CoIidxc6iccc1vNJti7rd97+XfBpXDkZF+S72bEDLteMfecYIvi BuBSXAbUsT9PmfYmXuYQTA==; Original-Received: from [87.69.77.57] (helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qHiVj-0001dc-HH; Fri, 07 Jul 2023 06:16:23 -0400 In-Reply-To: (message from Ulrich Mueller on Fri, 07 Jul 2023 10:20:07 +0200) 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:307552 Archived-At: > From: Ulrich Mueller > Cc: emacs-devel@gnu.org > Date: Fri, 07 Jul 2023 10:20:07 +0200 > > >>>>> 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 Yes, I know. Not sure why you posted this, though. If you are saying that this somehow contradicts what I wrote above, please elaborate, because I don't see the contradiction.