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#65726: 29.1.50; Crash in regexp engine Date: Fri, 15 Sep 2023 18:20:25 -0400 Message-ID: References: <8e1b4e50-0430-3eb3-e486-60def1e4821f@gmx.at> <83fs3u5e7u.fsf@gnu.org> <835y4q5apw.fsf@gnu.org> <776370AB-662F-4C0A-95BF-97DEA4F18F54@gmail.com> <3A0AC9E2-A420-47B6-870A-69C53FCAEF71@gmail.com> <1F72C9BA-E6E6-4D69-A23A-FBB8B4C5DA1B@gmail.com> 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="31046"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: martin rudalics , Eli Zaretskii , 65726@debbugs.gnu.org To: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Sep 16 00:21:11 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 1qhHBX-0007r9-03 for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 16 Sep 2023 00:21:11 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qhHBJ-0003Cy-DX; Fri, 15 Sep 2023 18:20:57 -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 1qhHBH-0003Am-Bl for bug-gnu-emacs@gnu.org; Fri, 15 Sep 2023 18:20:55 -0400 Original-Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qhHBH-0006Qm-3D for bug-gnu-emacs@gnu.org; Fri, 15 Sep 2023 18:20:55 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1qhHBN-0003rQ-NE for bug-gnu-emacs@gnu.org; Fri, 15 Sep 2023 18:21:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 15 Sep 2023 22:21:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 65726 X-GNU-PR-Package: emacs Original-Received: via spool by 65726-submit@debbugs.gnu.org id=B65726.169481644214802 (code B ref 65726); Fri, 15 Sep 2023 22:21:01 +0000 Original-Received: (at 65726) by debbugs.gnu.org; 15 Sep 2023 22:20:42 +0000 Original-Received: from localhost ([127.0.0.1]:45042 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qhHB4-0003qg-Aq for submit@debbugs.gnu.org; Fri, 15 Sep 2023 18:20:42 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:1551) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qhHB2-0003qT-H1 for 65726@debbugs.gnu.org; Fri, 15 Sep 2023 18:20:41 -0400 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 869BF805A9; Fri, 15 Sep 2023 18:20:28 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1694816427; bh=vn6ZBS0tRckphZ70vYB0/zSqlcYVCh7odnLuMhpsMzQ=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=Mk3xmssF/d2mnPOXlcZmeW06IPsk1YnXRf6ipC4bYdFrZSocR6iIUql4MF/9FeNyX mW8ByVnH7XpPT2prm/zmSiFMiZIYO9oIUO3eTZZ/bPi2J3Vbb1PaMo/wSHVRcdpAEv AW6im5HUiRPRjOWtWpdrGsetQmTU9DzK9+Bm9G6GWz3hPb8GwRgr+tam4XVSwYf0sz GQPfR3raRgrB4zIWADXdnELnk0MeKPHCgfmLPLbAygyrhek3kzfc0v90zU4IXZz83p d5tmb09Ion8AdsUnWU2wKmX/HR6X+h5hnPxlgjsL0NxoRzwcBxXtbYVT+gJlYVFKjs LAQ8/8M5b22+g== Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 40DA4803B1; Fri, 15 Sep 2023 18:20:27 -0400 (EDT) Original-Received: from pastel (unknown [104.247.237.102]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 05F95120250; Fri, 15 Sep 2023 18:20:27 -0400 (EDT) In-Reply-To: <1F72C9BA-E6E6-4D69-A23A-FBB8B4C5DA1B@gmail.com> ("Mattias =?UTF-8?Q?Engdeg=C3=A5rd?="'s message of "Fri, 15 Sep 2023 22:03:44 +0200") 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:270566 Archived-At: >> I.e. keep the idea I proposed of keeping track of a beg..end region >> that's already been handled. But now we really do have to maintain both >> ends (before, I only had `done` which kept track of the end of the >> region), and just "restart" when we jump back to a point before the >> "done" region. > Thank you, this looks workable and should enable some further > optimisations. I just pushed this to `master`. > Another option would be to add the usual cycle detection, That wouldn't be fun, tho, would it? > but this is probably faster. And more thrilling. Stefan