From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Daniel Brooks Newsgroups: gmane.emacs.devel Subject: Re: Unicode confusables and reordering characters considered harmful, a simple solution Date: Thu, 04 Nov 2021 22:23:46 -0700 Message-ID: <87bl2zqiot.fsf@db48x.net> References: <83ilxajyhw.fsf@gnu.org> <83fssejxf8.fsf@gnu.org> <835ytajsv2.fsf@gnu.org> <831r3yjqo9.fsf@gnu.org> <83v91aibe7.fsf@gnu.org> <87o872s0wf.fsf_-_@db48x.net> <83lf25gm1j.fsf@gnu.org> <83ee7xgio2.fsf@gnu.org> <87fssdrp54.fsf@db48x.net> <831r3xgfz3.fsf@gnu.org> <87v918qx37.fsf@db48x.net> <83o870fjqg.fsf@gnu.org> <87k0hnqr1v.fsf@db48x.net> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29384"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) Cc: Eli Zaretskii , emacs-devel@gnu.org, cpitclaudel@gmail.com, monnier@iro.umontreal.ca, yuri.v.khan@gmail.com To: Stefan Kangas Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Nov 05 06:25:36 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 1mirjK-0007OE-Vw for ged-emacs-devel@m.gmane-mx.org; Fri, 05 Nov 2021 06:25:35 +0100 Original-Received: from localhost ([::1]:44374 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mirjI-0007Rm-Rr for ged-emacs-devel@m.gmane-mx.org; Fri, 05 Nov 2021 01:25:32 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53588) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mirhf-0006jp-Er for emacs-devel@gnu.org; Fri, 05 Nov 2021 01:23:51 -0400 Original-Received: from smtp-out-4.mxes.net ([198.205.123.69]:38231) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mirhd-0006y8-Hd for emacs-devel@gnu.org; Fri, 05 Nov 2021 01:23:51 -0400 Original-Received: from Customer-MUA (mua.mxes.net [10.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.mxes.net (Postfix) with ESMTPSA id 4Hlpnv4DnHz3cDL; Fri, 5 Nov 2021 01:23:47 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mxes.net; s=mta; t=1636089828; bh=OsfYCgzsUJ58ysda3tC1ed4DQvzE3NqaDFnHrcQ9n2I=; h=From:To:Subject:References:Date:In-Reply-To:Message-ID: MIME-Version:Content-Type; b=XNDjqVY57m4HncP58gmUIK/srG+9HMFMAhZCw7ciyZ/bhrwK4OLWZ+qjEwKlZ7yMq KwipSi5mCnEQ6kXL6dBBLofSiMwOVexVzfdiENYSi4i5YfEsa6KWdweQgOIyXQ8WIz yoViWCpQaL+ZGWKoMT25ix5qlheHouOoHAclcip0= Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAABGdBTUEAALGOfPtRkwAAABJQ TFRFpKfbdou67PD6JjJgAwUWXGSeIcyLHgAAAkZJREFUOI1VU8Fy6yAMxLi+Q13fCZ3cnQL3dqTc 7RD+/1feStDXVnXHDuvVSivZTMba2GPdw3gyCGcMAFxTyrTd9dwGoxHiZX9PmRFUHYAQlGGtXY+F Uk0SJOxgJiUEnH1qkitT9D+pQub7qGAmUbR6bu3CvI96Yv6QqkBBMrsyfZccr1/RDXGDTLf4P7ZY glVxe2V+/ACXWO1gvDO9/gDRpFFVmPluvLcmBjd5H6d8DEte+Pbk4rcY/Fa5tLKLOtCZsuQKYhpa LOkYDT7hESya7/WIET3lfQBqX0pwFtbI832Is0ayMUR9B+12xjgPCQ089cfwkCkX6L5TPmRelJTh zMS0Sz1PyjLAMCUWjcmgQLWQMds+e3aaauZDf9dU9A2/8kPVF2odCUoMKHkfjJR+mbgC+DRiycw5 3XSqGe6HmhN/AWjHypkAXOAFW5EiuA1ge2GiZuMb0s1fSEXcATeLUfbyEY2L8yPOmdSsdghQXx3K pz2eoeXuYvMCINVFDrCdNfVUp4eJ6cSEbjbgFjBEvonGGTrgv9cHjAc8aVgSAPoxaONbzfwhDIhR at7IIS7fAGiDSwIA9alhhTBzfA7YM2FY6eMwayrIGK8FDFmshmUA43WqhFtpvoqG9HHaJ7fqtgTz 8EWVkgZgtsylFliHDgk0MB7KAEC45C/rgnGvanNLXyzOeTzcT2nw/N44gfrtYXRQLoz9Q3TgmJRx 2Mx/Q51qzpm+l3m8z2SWBqC5+PZXAtNYlGFf/gKfHfjFkDT4x7od7R+w3Ls+ZdQBuQAAAABJRU5E rkJggg== In-Reply-To: (Stefan Kangas's message of "Thu, 4 Nov 2021 20:52:21 -0700") X-Sent-To: Received-SPF: none client-ip=198.205.123.69; envelope-from=db48x@db48x.net; helo=smtp-out-4.mxes.net X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-0.001, SPF_NONE=0.001 autolearn=unavailable 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" Xref: news.gmane.io gmane.emacs.devel:278734 Archived-At: Stefan Kangas writes: > In any case, the above leads me back to the simple idea to raise > byte-compiler (or even `read'?) warnings for the problematic control > characters unless a specific variable is set to t, or unless the piece > of code using them is wrapped in some `with-suppressed-warnings' call. > > Or we do it the other way around: users mark a source code file to say > that "this file will never contain RTL characters" (but RTL scripts in > ELisp code is pretty uncommon, I think). > > It doesn't seem too bad, certainly not much worse than having to add > "coding: utf-8" or similar. I prefer the former to the latter. Marking the whole file as not containing RTL would close off too many avenues for future development in that file. Marking a specific expression or form is much nicer. >> Instead I think that Emacs should adopt a similar fast >> strategy. Anything we do today can be refined later. > > FWIW, I tend to agree with this. Thank you. db48x