From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gregory Heytings Newsgroups: gmane.emacs.bugs Subject: bug#61215: 29.0.60; font-lock broken in diff-mode with long lines Date: Mon, 27 Feb 2023 19:25:03 +0000 Message-ID: <9ac9271f1e8ae64cab2b@heytings.org> References: <86lelh6yhq.fsf_-_@mail.linkov.net> <83cz6tz12b.fsf@gnu.org> <86o7qcf2x5.fsf@mail.linkov.net> <83a61vx0jo.fsf@gnu.org> <86bkmbfalm.fsf@mail.linkov.net> <83pmarufgi.fsf@gnu.org> <86ilggc6gn.fsf@mail.linkov.net> <83mt5sq7nr.fsf@gnu.org> <86edr2davu.fsf@mail.linkov.net> <83lelapsvj.fsf@gnu.org> <86o7pfc91a.fsf@mail.linkov.net> <9ac9271f1e747b4a1e20@heytings.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="4697"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Eli Zaretskii , 61215@debbugs.gnu.org To: Juri Linkov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Feb 27 20:26:26 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 1pWj8i-0000yY-Tz for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 27 Feb 2023 20:26:25 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pWj8P-0003Cn-NY; Mon, 27 Feb 2023 14:26:05 -0500 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 1pWj8N-0003CP-Hl for bug-gnu-emacs@gnu.org; Mon, 27 Feb 2023 14:26:03 -0500 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 1pWj8M-0002FM-JA for bug-gnu-emacs@gnu.org; Mon, 27 Feb 2023 14:26:03 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1pWj8M-0006YV-Ex for bug-gnu-emacs@gnu.org; Mon, 27 Feb 2023 14:26:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Gregory Heytings Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 27 Feb 2023 19:26:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 61215 X-GNU-PR-Package: emacs Original-Received: via spool by 61215-submit@debbugs.gnu.org id=B61215.167752590625117 (code B ref 61215); Mon, 27 Feb 2023 19:26:02 +0000 Original-Received: (at 61215) by debbugs.gnu.org; 27 Feb 2023 19:25:06 +0000 Original-Received: from localhost ([127.0.0.1]:48866 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pWj7S-0006X3-C9 for submit@debbugs.gnu.org; Mon, 27 Feb 2023 14:25:06 -0500 Original-Received: from heytings.org ([95.142.160.155]:47670) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pWj7Q-0006Wu-Nz for 61215@debbugs.gnu.org; Mon, 27 Feb 2023 14:25:05 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20220101; t=1677525904; bh=5UALPgYCS+hrJRaf0EmX5mk5nzW3PuJ13Nc5BDre6XQ=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=tnmm9OmV4wVpzW9KgRmwipDARYS4kzEyl+YeCKZ2H1VGLGX950/C2WVL9HURsEahT 9x/S4x2ult7OZsKLzGRODExldJAWLv3Mwe96EwskFkfbTCHkvGuhXwTv+O3SFfiY+G b/GfHQGczVfU982Sw3q4QccteWanD2sl7L0xxHqpZiOyu39lk9F72bSFGvysDVjxfd 0OTunfiABx+uXI9IZVDjUI/nMzuNB7WSCphDWX4nEnJp2wZcQMIpW5DtQDiqUdj8F8 +qOYBLofpq9q3HUrgr/FEb6q7ChTsf9FCATnatWqgIXS7F4QgdOuU8i5t7j9yB6GlH XJOjXloZKo+EQ== In-Reply-To: <9ac9271f1e747b4a1e20@heytings.org> 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:256905 Archived-At: >>>> After debugging I discovered that the problem is not caused by >>>> font-lock in diff-mode. The problem is in >>>> easy-mmode-define-navigation. diff-mode uses it to navigate diff >>>> hunks. It supports such a feature that when the user narrowed the >>>> diff buffer, it puts narrowing back after moving to the next hunk. >>>> But this fails when the diff buffer is narrowed automatically by >>>> long-line-optimizations. If there is no way to distinguish whether >>>> the narrowing is automatic by long-lines or manual by the user, this >>>> patch fixes the problem. It works without errors, and even >>>> highlights first 250000 characters of the long line: >>> >>> Thanks. >>> >>> Maybe Gregory (CC'ed) can help here and tell whether there's a better >>> solution. >> >> It seems there is no better solution? > > I still have to look at this, it's on my (short time) TODO list. > I meant "short term", of course.