From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.devel Subject: Re: Subversion of user chosen major mode by Emacs. [Was: My usage of imenu is broken.] Date: Thu, 30 May 2024 15:29:24 +0000 Message-ID: References: <86r0dmtbk2.fsf@gnu.org> <867cfbswfg.fsf@gnu.org> <86ed9jqrfp.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="13389"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Eli Zaretskii , emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu May 30 17:30:43 2024 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 1sChjn-0003Mv-6S for ged-emacs-devel@m.gmane-mx.org; Thu, 30 May 2024 17:30:43 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sChiq-0004N8-Ca; Thu, 30 May 2024 11:29:44 -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 1sChio-0004Mn-IY for emacs-devel@gnu.org; Thu, 30 May 2024 11:29:42 -0400 Original-Received: from mail.muc.de ([193.149.48.3]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sChil-0000nL-MM for emacs-devel@gnu.org; Thu, 30 May 2024 11:29:42 -0400 Original-Received: (qmail 63732 invoked by uid 3782); 30 May 2024 17:29:24 +0200 Original-Received: from muc.de (p4fe15f3a.dip0.t-ipconnect.de [79.225.95.58]) (using STARTTLS) by colin.muc.de (tmda-ofmipd) with ESMTP; Thu, 30 May 2024 17:29:24 +0200 Original-Received: (qmail 29821 invoked by uid 1000); 30 May 2024 15:29:24 -0000 Content-Disposition: inline In-Reply-To: X-Submission-Agent: TMDA/1.3.x (Ph3nix) X-Primary-Address: acm@muc.de Received-SPF: pass client-ip=193.149.48.3; envelope-from=acm@muc.de; helo=mail.muc.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:319757 Archived-At: Hello, Stefan. On Thu, May 30, 2024 at 11:12:44 -0400, Stefan Monnier wrote: > >> AFAICT it is a lot more common for file-local vars to be abused to > >> specify mere user preferences, than the reverse (i.e. where there really > >> is a technical reason why the file should be edited with js2-mode rather > >> than js-mode). > > "More common", maybe. But that doesn't mean the other case doesn't > > exist or is not legitimate. > I don't doubt such cases exist. I personally can't think of any, tho. > So, being hypothetical, I tend to consider it as a fringe problem which > is OK to solve with fringe solutions. > Can you point to non-hypothetical examples? I can point to a semi-hypothetical case: A device driver hacker may need to use C Mode for a "hardware description" file which contains a 40,000 line function, for which c-ts-mode is unusably slow. I have such a file, packet-rrc.c, in my desktop. The said hacker may, however, prefer c-ts-mode for more normal files, so will set up the mode in file-local variables or the top line of the file. > Stefan -- Alan Mackenzie (Nuremberg, Germany).