From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Marcin Borkowski Newsgroups: gmane.emacs.help Subject: Re: Is it ok to sort a list of overlays destructively? Date: Fri, 30 Jul 2021 21:27:01 +0200 Message-ID: <87k0l7d2m2.fsf@mbork.pl> References: <87h7ggcov1.fsf@mbork.pl> <83bl6nvpcl.fsf@gnu.org> <87czr3ecpc.fsf@mbork.pl> <83wnpbtbsk.fsf@gnu.org> <87bl6ndlb3.fsf@mbork.pl> <83sfzyu0he.fsf@gnu.org> <83mtq5s3jg.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="26448"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: mu4e 1.1.0; emacs 28.0.50 Cc: help-gnu-emacs@gnu.org To: Eli Zaretskii Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jul 30 21:27:49 2021 Return-path: Envelope-to: geh-help-gnu-emacs@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 1m9YAf-0006hI-1x for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 30 Jul 2021 21:27:49 +0200 Original-Received: from localhost ([::1]:33978 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m9YAd-00031w-PD for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 30 Jul 2021 15:27:47 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:42148) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m9YAE-0002xm-3H for help-gnu-emacs@gnu.org; Fri, 30 Jul 2021 15:27:22 -0400 Original-Received: from mail.mojserwer.eu ([195.110.48.8]:35320) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m9YA9-00085F-P1; Fri, 30 Jul 2021 15:27:21 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by mail.mojserwer.eu (Postfix) with ESMTP id 56446E6B6A; Fri, 30 Jul 2021 21:27:10 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mail.mojserwer.eu Original-Received: from mail.mojserwer.eu ([127.0.0.1]) by localhost (mail.mojserwer.eu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GEO-1_Jkh5Gs; Fri, 30 Jul 2021 21:27:02 +0200 (CEST) Original-Received: from localhost (178235147005.dynamic-3-poz-k-0-1-0.vectranet.pl [178.235.147.5]) by mail.mojserwer.eu (Postfix) with ESMTPSA id CB127E61C2; Fri, 30 Jul 2021 21:27:01 +0200 (CEST) In-reply-to: <83mtq5s3jg.fsf@gnu.org> Received-SPF: pass client-ip=195.110.48.8; envelope-from=mbork@mbork.pl; helo=mail.mojserwer.eu 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, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:132197 Archived-At: On 2021-07-29, at 14:33, Eli Zaretskii wrote: >> From: John Yates >> Date: Thu, 29 Jul 2021 07:34:07 -0400 >> Cc: Help Gnu Emacs mailing list >> >> On Wed, Jul 28, 2021 at 7:44 AM Eli Zaretskii wrote: >> > >> > Basically, you should assume that Emacs protects itself where that is >> > needed, so if it handed you a list or some other data, and nothing in >> > the doc string warns you against doing something with that data, you >> > are free to do that, and if that causes unexpected results, there's >> > either a documentation bug or a code bug that needs to be fixed. >> >> I am not sure if such a statement exists in any of the manuals. Should >> it not be stated explicitly somewhere? > > I don't think it should be, no. It's pretty much obvious, IMO. Eli, thank you very much for all your input here. After so many years with Emacs and Elisp, I still learn a lot! Thanks, -- Marcin Borkowski http://mbork.pl