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#56682: Fix the long lines font locking related slowdowns Date: Fri, 29 Jul 2022 20:48:23 +0000 Message-ID: References: <83bktghrn0.fsf@gnu.org> <8a3eaeef010995a5da8d@heytings.org> <837d40ds09.fsf@gnu.org> <83zggwcby5.fsf@gnu.org> <83o7xccagi.fsf@gnu.org> <831qu7daxb.fsf@gnu.org> <83sfmnb7yg.fsf@gnu.org> <837d3ybh5z.fsf@gnu.org> <136c4fe0fc74196714aa@heytings.org> <83pmhp89ov.fsf@gnu.org> <136c4fe0fc39573addc9@heytings.org> <83k07x8738.fsf@gnu.org> <136c4fe0fcdf00ef9a11@heytings.org> <83h73183r7.fsf@gnu.org> <136c4fe0fc0fceb0d752@heytings.org> <838roc8ka7.fsf@gnu.org> <83tu706obt.fsf@gnu.org> <83h7306ifa.fsf@gnu.org> <83edy37pul.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="33117"; mail-complaints-to="usenet@ciao.gmane.io" Cc: gerd.moellmann@gmail.com, 56682@debbugs.gnu.org, larsi@gnus.org, monnier@iro.umontreal.ca To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jul 29 22:49:27 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 1oHWvG-0008RD-Jn for geb-bug-gnu-emacs@m.gmane-mx.org; 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Fri, 29 Jul 2022 20:49:02 +0000 Original-Received: (at 56682) by debbugs.gnu.org; 29 Jul 2022 20:48:30 +0000 Original-Received: from localhost ([127.0.0.1]:33560 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oHWuL-0001fI-Kj for submit@debbugs.gnu.org; Fri, 29 Jul 2022 16:48:29 -0400 Original-Received: from heytings.org ([95.142.160.155]:58262) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oHWuG-0001f6-KS for 56682@debbugs.gnu.org; Fri, 29 Jul 2022 16:48:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20220101; t=1659127703; bh=op4veAIFCgujZJKWwEiHVpSwFUKr5wHtOI6bazSq+ik=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=HumjTMDYsbJk0tYftO7rhKqm12Zw3c8NDhRQURVhcN3iyFzSrPM1DvPh+CjbeDtQG D9vP+hh2e/ikl6jssdhca9T0YMX7cehm0JVQp+qUON7R/T/xfpODCf+M9U/UjgFmgk LeShp4ab3+/tV/GRJih6IZfXb6+owePWj0BRhRRXHOq+XeRoVMwAfah7YE2wLOasnv SwjphJn7ZpjUNbq7UshEA9e9hnBzUzRWeiFgdXbEBEHk7G1TB6QmyNCnPZzAeSKhGl D5UqwabAf5t2YEqUo2HJ/9LTCvnjkZ04fnZolVxO6FxoS3WJ1WC8k+wAQRbXaq1gfT On68RdGcwCeOQ== In-Reply-To: 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:238226 Archived-At: > > At least applying that change does not seem to have negative effects. > Actually it does, with the same recipe: emacs -Q M-: (progn (set-frame-width nil 119) (set-frame-height nil 38)) RET C-x C-f dictionary.json RET y C-s aan SPC So you can forget this patch. > > diff --git a/src/xdisp.c b/src/xdisp.c > index b1ee7889d4..e415320a52 100644 > --- a/src/xdisp.c > +++ b/src/xdisp.c > @@ -3429,6 +3429,12 @@ init_iterator (struct it *it, struct window *w, > { > it->narrowed_begv = get_narrowed_begv (w, window_point (w)); > it->narrowed_zv = get_narrowed_zv (w, window_point (w)); > + if (charpos >= 0 > + && (charpos < it->narrowed_begv || charpos > it->narrowed_zv)) > + { > + it->narrowed_begv = get_narrowed_begv (w, charpos); > + it->narrowed_zv = get_narrowed_zv (w, charpos); > + } > } > > /* If a buffer position was specified, set the iterator there, >