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: Major modes using `widen' is a good, even essential, programming practice. Date: Sun, 07 Aug 2022 20:56:39 +0200 Message-ID: <87y1vzyja0.fsf@gnus.org> References: <6ae35c9306ade07b4c45@heytings.org> <835yj4xhh7.fsf@gnu.org> <83y1w0w0gk.fsf@gnu.org> <83pmhcvugm.fsf@gnu.org> <651cad2f-3ce3-22dd-0829-38dd3c46ec40@yandex.ru> <83o7wwvsqf.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="29746"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Dmitry Gutov , acm@muc.de, gregory@heytings.org, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Aug 07 20:57:58 2022 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 1oKlTJ-0007WR-M1 for ged-emacs-devel@m.gmane-mx.org; Sun, 07 Aug 2022 20:57:57 +0200 Original-Received: from localhost ([::1]:36588 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oKlTI-0002UA-Bh for ged-emacs-devel@m.gmane-mx.org; Sun, 07 Aug 2022 14:57:56 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:37196) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oKlSM-0001pJ-7Q for emacs-devel@gnu.org; Sun, 07 Aug 2022 14:56:58 -0400 Original-Received: from quimby.gnus.org ([2a01:4f9:2b:f0f::2]:49512) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oKlSK-0004xn-QI; Sun, 07 Aug 2022 14:56:57 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:Date:References: In-Reply-To:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: 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=TK6FhR8HGwntVZera6Kl7jxYY/ZSLMDLw1K8vt6Ejdc=; b=l6Oa9Z8x9aKG0arVKj2lGKdi5/ vBsFFK3mKeBs99jbUrlU6khZTIVObVJXYxUHInMoEvgl144feXkHjkE2dFn/7SPV2yzoxA6Znmvs3 1c96X8eOSnFT0GBY29E7wyVmwaaZ9IgXJ59tTBAlAI2BwcvMJHuHDy0rTS0sFl47GGPA=; Original-Received: from [84.212.220.105] (helo=joga) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oKlS3-0000tn-Vq; Sun, 07 Aug 2022 20:56:42 +0200 In-Reply-To: <83o7wwvsqf.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 07 Aug 2022 21:00:40 +0300") Received-SPF: pass client-ip=2a01:4f9:2b:f0f::2; envelope-from=larsi@gnus.org; helo=quimby.gnus.org X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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:293228 Archived-At: Eli Zaretskii writes: >> It's not slow on files of reasonable size. E.g. even if we take xdisp.c >> (the file I've seen referred to in complaints on CC Mode's speed), >> >> (benchmark 1 '(save-excursion (parse-partial-sexp (point-min) >> (point-max)))) >> >> reports 20-50 ms on my machine. > > It takes 0.5 sec here. Takes 0.03s here on an --enable-checking=yes build.