From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.bugs Subject: bug#61215: 29.0.60; font-lock broken in diff-mode with long lines Date: Mon, 27 Feb 2023 20:28:33 +0200 Organization: LINKOV.NET Message-ID: <86o7pfc91a.fsf@mail.linkov.net> 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> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31754"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/30.0.50 (x86_64-pc-linux-gnu) Cc: Gregory Heytings , 61215@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Feb 27 19:36:36 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 1pWiMW-00086e-CF for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 27 Feb 2023 19:36:36 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pWiM5-00049s-24; Mon, 27 Feb 2023 13:36:09 -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 1pWiLy-00042v-LC for bug-gnu-emacs@gnu.org; Mon, 27 Feb 2023 13:36:02 -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 1pWiLy-00055I-By for bug-gnu-emacs@gnu.org; Mon, 27 Feb 2023 13:36:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1pWiLy-0000GB-7t for bug-gnu-emacs@gnu.org; Mon, 27 Feb 2023 13:36:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Juri Linkov Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 27 Feb 2023 18:36:02 +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=B61215.1677522920942 (code B ref 61215); Mon, 27 Feb 2023 18:36:02 +0000 Original-Received: (at 61215) by debbugs.gnu.org; 27 Feb 2023 18:35:20 +0000 Original-Received: from localhost ([127.0.0.1]:48759 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pWiLG-0000F3-Q0 for submit@debbugs.gnu.org; Mon, 27 Feb 2023 13:35:20 -0500 Original-Received: from relay11.mail.gandi.net ([217.70.178.231]:59213) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pWiKz-0000Dl-Oz for 61215@debbugs.gnu.org; Mon, 27 Feb 2023 13:35:16 -0500 Original-Received: (Authenticated sender: juri@linkov.net) by mail.gandi.net (Postfix) with ESMTPSA id 5CAAC100004; Mon, 27 Feb 2023 18:34:52 +0000 (UTC) In-Reply-To: <83lelapsvj.fsf@gnu.org> (Eli Zaretskii's message of "Mon, 06 Feb 2023 20:10:24 +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:256894 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?