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#44983: Truncate long lines of grep output Date: Fri, 29 Apr 2022 20:15:00 +0300 Organization: LINKOV.NET Message-ID: <86r15fvn5j.fsf@mail.linkov.net> References: <87v9dlc3ti.fsf_-_@mail.linkov.net> <83ft4pik35.fsf@gnu.org> <87sg8p5kw0.fsf@mail.linkov.net> <83eek8hoyx.fsf@gnu.org> <87h7p4r1n9.fsf@mail.linkov.net> <87tuacf79e.fsf@gnus.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="8745"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (x86_64-pc-linux-gnu) Cc: 44983@debbugs.gnu.org, dgutov@yandex.ru To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Apr 29 19:23:52 2022 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 1nkULQ-00029B-1H for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 29 Apr 2022 19:23:52 +0200 Original-Received: from localhost ([::1]:53382 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nkULO-0005mo-QM for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 29 Apr 2022 13:23:50 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41520) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nkUKd-0004eL-Qe for bug-gnu-emacs@gnu.org; Fri, 29 Apr 2022 13:23:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:33155) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nkUKd-0008KU-Hp for bug-gnu-emacs@gnu.org; Fri, 29 Apr 2022 13:23:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1nkUKd-0000W5-DZ for bug-gnu-emacs@gnu.org; Fri, 29 Apr 2022 13:23:03 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Juri Linkov Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 29 Apr 2022 17:23:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 44983 X-GNU-PR-Package: emacs Original-Received: via spool by 44983-submit@debbugs.gnu.org id=B44983.16512529651900 (code B ref 44983); Fri, 29 Apr 2022 17:23:03 +0000 Original-Received: (at 44983) by debbugs.gnu.org; 29 Apr 2022 17:22:45 +0000 Original-Received: from localhost ([127.0.0.1]:55278 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nkUKK-0000Ua-Pk for submit@debbugs.gnu.org; Fri, 29 Apr 2022 13:22:44 -0400 Original-Received: from relay9-d.mail.gandi.net ([217.70.183.199]:43819) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nkUKJ-0000UA-76 for 44983@debbugs.gnu.org; Fri, 29 Apr 2022 13:22:43 -0400 Original-Received: (Authenticated sender: juri@linkov.net) by mail.gandi.net (Postfix) with ESMTPSA id 73727FF805; Fri, 29 Apr 2022 17:22:35 +0000 (UTC) In-Reply-To: <87tuacf79e.fsf@gnus.org> (Lars Ingebrigtsen's message of "Fri, 29 Apr 2022 13:39:41 +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" Xref: news.gmane.io gmane.emacs.bugs:230981 Archived-At: >> Maybe instead of using font-lock to hide long parts >> of grep lines, it would be better to do the same >> directly in compilation-filter/grep-filter? > > I now have a rough patch that does this, but the problem is that even if > I splat a "..." display over the text, font-lock seems to insist on > going over the data anyway, so the display is still dog slow. > > I thought I remembered there was a way to say to font-lock "ignore this > bit of the buffer", but I can't find it now. Do I misremember? I don't remember such font-lock text property, but now I have no problems when long lines are hidden initially with: ``` (add-hook 'xref-after-update-hook (lambda () (setq-local outline-regexp (if (eq xref-file-name-display 'abs) "/" "[^ 0-9]") outline-default-state 1 outline-default-rules '(subtree-has-long-lines) outline-default-long-line 1000) (outline-minor-mode +1))) ```