From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Phil Sainty Newsgroups: gmane.emacs.bugs Subject: bug#45652: so-long mode not triggered despite big file with very long lines Date: Tue, 12 Jan 2021 08:18:42 +1300 Message-ID: References: <877dosudon.5.fsf@jidanni.org> <87wnwjco89.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28246"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 Cc: 45652@debbugs.gnu.org, =?UTF-8?Q?=E7=A9=8D=E4=B8=B9=E5=B0=BC?= Dan Jacobson To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Jan 11 20:43:20 2021 Return-path: Envelope-to: geb-bug-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 1kz35z-0007Gu-SM for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 11 Jan 2021 20:43:19 +0100 Original-Received: from localhost ([::1]:53970 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kz35y-0002oE-TM for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 11 Jan 2021 14:43:18 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:50920) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kz2ic-0004Nf-S9 for bug-gnu-emacs@gnu.org; Mon, 11 Jan 2021 14:19:14 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:46755) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kz2iT-0000RM-PM for bug-gnu-emacs@gnu.org; Mon, 11 Jan 2021 14:19:04 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kz2iT-0002tv-LI for bug-gnu-emacs@gnu.org; Mon, 11 Jan 2021 14:19:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Phil Sainty Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 11 Jan 2021 19:19:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 45652 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 45652-submit@debbugs.gnu.org id=B45652.161039272811132 (code B ref 45652); Mon, 11 Jan 2021 19:19:01 +0000 Original-Received: (at 45652) by debbugs.gnu.org; 11 Jan 2021 19:18:48 +0000 Original-Received: from localhost ([127.0.0.1]:58301 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kz2iF-0002tT-QF for submit@debbugs.gnu.org; Mon, 11 Jan 2021 14:18:48 -0500 Original-Received: from smtp-2.orcon.net.nz ([60.234.4.43]:42723) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kz2iD-0002tK-F6 for 45652@debbugs.gnu.org; Mon, 11 Jan 2021 14:18:45 -0500 Original-Received: from [101.53.216.160] (port=21507 helo=[192.168.20.103]) by smtp-2.orcon.net.nz with esmtpa (Exim 4.90_1) (envelope-from ) id 1kz2iB-0003fa-1m; Tue, 12 Jan 2021 08:18:43 +1300 In-Reply-To: <87wnwjco89.fsf@gnus.org> Content-Language: en-GB X-GeoIP: NZ X-Spam_score: -2.9 X-Spam_score_int: -28 X-Spam_bar: -- X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:197739 Archived-At: On 12/01/21 7:39 am, Lars Ingebrigtsen wrote: > Have you considered adding a C-level primitive that just looks at the > entire buffer? It should be reasonably simple and very fast -- just > count areas between "\n"s, skipping the buffer gap. We don't have to > care about characters as such, I think, so this should be massively > faster than counting line lengths in Lisp. Agreed. See my reply to Dan a few minutes ago for a similar thought. I don't know what the correct approach to this would be, but there's definitely scope for some kind of improvement along these lines (pun not intended :) -Phil