From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.devel Subject: Re: Letter-case conversions in network protocols Date: Sat, 08 May 2021 21:45:55 +0200 Message-ID: <87bl9lovpo.fsf@gnus.org> References: <83h7jda71o.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="40736"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Eli Zaretskii , Stefan Monnier , Fatih Aydin , emacs-devel@gnu.org To: Daniel =?utf-8?Q?Mart=C3=ADn?= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat May 08 21:46:42 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 1lfSuQ-000AUE-B6 for ged-emacs-devel@m.gmane-mx.org; Sat, 08 May 2021 21:46:42 +0200 Original-Received: from localhost ([::1]:47370 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lfSuP-00011l-34 for ged-emacs-devel@m.gmane-mx.org; Sat, 08 May 2021 15:46:41 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:36706) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lfStr-0000F3-FB for emacs-devel@gnu.org; Sat, 08 May 2021 15:46:07 -0400 Original-Received: from quimby.gnus.org ([2a01:4f9:2b:f0f::2]:36082) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lfStn-0004iA-8B; Sat, 08 May 2021 15:46:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID :In-Reply-To:Date:References:Subject:Cc:To:From:Sender:Reply-To: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=77cZBB1F9YhsdoY1zCXP2i4dF4s8WiXG0IrYJTR7GcE=; b=lHmmjgCpGtQtfEsQ+aPJ5A5WLL H0++e8LgGBPbRTrkaQATcEgZ4C7J1J7e6/YqiMsUTLDwOtOYjO2HonFj4x8OfqVahKKHTT132pjYF WSNndZmbqM+Yut3rSKiOoQOK7RgEZwM/NjQ18KO02ixtuuZ2/dDfBDQw44N5Pr7rDBw4=; Original-Received: from cm-84.212.220.105.getinternet.no ([84.212.220.105] helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lfStf-0008EU-P3; Sat, 08 May 2021 21:45:58 +0200 Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAFVBMVEVeJR1kV0nu59mz jGy9PikjGBf///9hKlCnAAAAAWJLR0QGYWa4fQAAAAd0SU1FB+UFCBMTHZuAt2wAAAGUSURBVDjL bZTdboMwDIUdLbnHRXmAZdr9gul9JLJ7UOf3f5XZ+aGUYqkS+Os5xnYAQMOEEH4gH6PkYVKQ34C7 hQuwAjxCiN7ACTC4KXhmM+T0CtZN82zkxr4Avt0lv47zfLJaI1dAJ7CJEQqgMzDMj0/m7U0hcfsW rywgncDomK0COIESFuAaqNslkCu4BNnJ2GxpnpZZhug6SDYnQV2h/Uk4znmZf9Pu1oEo8ly2I8ml gHsDcpcsHBQd8J+W2IvAFvcOs+tg0dXS3l49GV3B1J7XJuiRlyUBj/tEniCTgIfvJQ4SuWaOu6Jo xgFxViveWt66AnAwGEcAnUb5taeVgyxoGAQYVtydAD4wIirY/ArOyZmwtimwAfT6fxnjoRUxQUb0 fbMHgpFX1aIrZ+FJiDwbHGnydUjpCbRBEfm679zBF0WtAMbZPtcaIRA6eSip0byaWwhfEXUY7vna pAqUDHVDcHDTF1bqDPvqbJOEGkT9A3ACxy/DXLyqExEN76ApWnqRE61e74DyFZCjdgDTC6gt/gNM Q9/CTYz7bQAAACV0RVh0ZGF0ZTpjcmVhdGUAMjAyMS0wNS0wOFQxOToxOToyOSswMDowMKaRTf0A AAAldEVYdGRhdGU6bW9kaWZ5ADIwMjEtMDUtMDhUMTk6MTk6MjkrMDA6MDDXzPVBAAAAAElFTkSu QmCC X-Now-Playing: Frank Cornilius's _Space Funk_: "Computer Games" In-Reply-To: ("Daniel =?utf-8?Q?Mart=C3=ADn=22's?= message of "Sat, 08 May 2021 17:41:37 +0200") Received-SPF: pass client-ip=2a01:4f9:2b:f0f::2; envelope-from=larsi@gnus.org; helo=quimby.gnus.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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=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:269064 Archived-At: Daniel Mart=C3=ADn writes: > Of course, code can still be broken if people explicitly do its own > thing with `downcase', etc. instead of using the case-folding string > APIs, but that's sort of an anti-pattern, anyway. But code does this sort of thing -- for instance, Message allows headers to be specified in various ways, but will run the header names trough `capitalize'. So this isn't just about doing comparisons, but separating out text transformations that are done according to a protocol specification (i.e., octets that happen to be ASCII) vs. the normal DWIM text transformations. --=20 (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no