From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#58558: 29.0.50; re-search-forward is slow in some buffers Date: Wed, 12 Apr 2023 19:25:14 -0400 Message-ID: References: <87h6ttkz6n.fsf@localhost> <838rf5qkpt.fsf@gnu.org> <87lej0zv92.fsf@localhost> <83ttxol6f5.fsf@gnu.org> <87h6tolybs.fsf@localhost> <87zg7e8xnt.fsf@localhost> <83ttxmab7x.fsf@gnu.org> <87sfd5b4oy.fsf@localhost> Reply-To: Stefan Monnier Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29776"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: 58558@debbugs.gnu.org, larsi@gnus.org, Ihor Radchenko , Eli Zaretskii To: Alan Mackenzie Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Apr 13 01:26:09 2023 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 1pmjqq-0007Wp-R4 for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 13 Apr 2023 01:26:09 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pmjqm-0001wV-W7; Wed, 12 Apr 2023 19:26:05 -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 1pmjqk-0001w6-HL for bug-gnu-emacs@gnu.org; Wed, 12 Apr 2023 19:26:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pmjqk-0002GR-5m for bug-gnu-emacs@gnu.org; Wed, 12 Apr 2023 19:26:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1pmjqj-0004ph-Qa for bug-gnu-emacs@gnu.org; Wed, 12 Apr 2023 19:26:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 12 Apr 2023 23:26:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 58558 X-GNU-PR-Package: emacs Original-Received: via spool by 58558-submit@debbugs.gnu.org id=B58558.168134192418521 (code B ref 58558); Wed, 12 Apr 2023 23:26:01 +0000 Original-Received: (at 58558) by debbugs.gnu.org; 12 Apr 2023 23:25:24 +0000 Original-Received: from localhost ([127.0.0.1]:42078 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pmjq7-0004of-VV for submit@debbugs.gnu.org; Wed, 12 Apr 2023 19:25:24 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:62792) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pmjq6-0004oO-FW for 58558@debbugs.gnu.org; Wed, 12 Apr 2023 19:25:22 -0400 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 36EF280148; Wed, 12 Apr 2023 19:25:17 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id DF87B803B4; Wed, 12 Apr 2023 19:25:15 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1681341915; bh=BoH9I0s43s8Ry26AIAZWIKL7v5a6S7l9octBBoIQNXI=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=gwwDr0xo94ZsmcvlLrurWXAcOh5WgawSuZ36vQ955aaUIP30Wb0ehTOpdmsLd5x70 6kLRS4zqSX7LDxp6N6WvtrVna1HgfXbOwz55bL2bAH9BZ5tgBl6QrTPIc1j3VzSW4z VEyh4GukDtwKg5HRIPSDwd0RhkfTBAbpTrJlrLuAzjlhCk97h3sjubj1tVj2SlhNqH lFMpj4z2HzvjDddDOKa6/SSW/2Lnrs2uisfDxDJ/nlDMLdaLScauVr+YDUzrPv7IZu oKWX/8QoTubbNaU775bvRzdr1qr70CySlHMGU+KiR7DIGDcSngaqFicbIhHekGvXWj M7EuDgOgnBNYA== Original-Received: from pastel (unknown [45.72.217.176]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 7814A1202A0; Wed, 12 Apr 2023 19:25:15 -0400 (EDT) In-Reply-To: (Alan Mackenzie's message of "Wed, 12 Apr 2023 18:31:09 +0000") 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-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:259820 Archived-At: >> I suspect that the patch below might fix the immediate problem. >> Of course, setting `parse-sexp-lookup-properties` should not have such >> a major performance impact, so maybe we should keep digging into >> the problem. > > Thanks! That's a nasty little bug for somebody who hasn't seen it > before. I don't the Elisp manual is all that explicit about what > happens in such cases. According to my reading of the manual, it does explain what happens, but maybe it should more specifically warn about this kind of interaction. > Just as a matter of interest, have you searched cc-defs.el for any other > places the same bug might occur? If not, I will. No, among other things because I don't know a good regexp that can help me look for it. Stefan