From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#44983: Truncate long lines of grep output Date: Sat, 30 Apr 2022 11:56:11 +0200 Message-ID: <874k2a6gjo.fsf@gnus.org> 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> <87bkwi6h9l.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="743"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: 44983@debbugs.gnu.org, Juri Linkov To: Dmitry Gutov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Apr 30 12:01:51 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 1nkjvC-000Aac-UZ for geb-bug-gnu-emacs@m.gmane-mx.org; 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Command output lines. (": \\(.+\\): \\(?:Permission denied\\|No such \\(?:file or directory\\|device or address\\)\\)$" 1 grep-error-face) With that removed, everything's nice and fast. Limiting that .+ to 200 characters also makes things fast: diff --git a/lisp/progmodes/grep.el b/lisp/progmodes/grep.el index 17905dec2e..7620536b4b 100644 --- a/lisp/progmodes/grep.el +++ b/lisp/progmodes/grep.el @@ -456,7 +456,7 @@ grep-find-abbreviate-properties (defvar grep-mode-font-lock-keywords '(;; Command output lines. - (": \\(.+\\): \\(?:Permission denied\\|No such \\(?:file or directory\\|device or address\\)\\)$" + (": \\(.\\{,200\\}\\): \\(?:Permission denied\\|No such \\(?:file or directory\\|device or address\\)\\)$" 1 grep-error-face) ;; remove match from grep-regexp-alist before fontifying ("^Grep[/a-zA-Z]* started.*" But I guess the real question here is still why we're font-locking invisible text. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no