From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling) Date: Sun, 21 Aug 2022 16:24:08 +0300 Message-ID: <835yild91j.fsf@gnu.org> References: <87bksmx1j1.fsf@localhost> <8335dxiu6m.fsf@gnu.org> <87y1vnjgmn.fsf@gnus.org> <83y1vncbq5.fsf@gnu.org> <87r11fgi7h.fsf@gnus.org> <83sflvc85y.fsf@gnu.org> <87h729902w.fsf@gnus.org> <83edxdbs96.fsf@gnu.org> <87wnb5wthm.fsf@gnus.org> <83pmgxfyc7.fsf@gnu.org> <87fshtwsys.fsf@gnus.org> <877d35wsdd.fsf@gnus.org> <83ilmpfwrf.fsf@gnu.org> <8735dtwrar.fsf@gnus.org> <83h729ft60.fsf@gnu.org> <87tu68v3uu.fsf@gnus.org> <83tu68e83u.fsf@gnu.org> <87fshsteqc.fsf@gnus.org> <87bksgte5e.fsf@gnus.org> <877d34tdwf.fsf@gnus.org> <83pmgwdxhh.fsf@gnu.org> <8735dstdhn.fsf@gnus.org> <37dd2827f52038e95791@heytings.org> <83wnb2ddxd.fsf@gnu.org> <37dd2827f57a3d664931@heytings.org> <37dd2827f52c6a150684@heytings.org> <83tu66cfnr.fsf@gnu.org> <83fshpdctx.fsf@gnu.org> <83bksddag4.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="19655"; mail-complaints-to="usenet@ciao.gmane.io" Cc: larsi@gnus.org, 57207@debbugs.gnu.org, yantar92@gmail.com To: Gregory Heytings Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Aug 21 15:25:10 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 1oPkww-0004u9-8A for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 21 Aug 2022 15:25:10 +0200 Original-Received: from localhost ([::1]:34996 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oPkwv-0001ow-CJ for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 21 Aug 2022 09:25:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55686) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oPkwo-0001oh-SB for bug-gnu-emacs@gnu.org; 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Original-Received: from [87.69.77.57] (port=4679 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oPkvu-0000CQ-Dt; Sun, 21 Aug 2022 09:24:06 -0400 In-Reply-To: (message from Gregory Heytings on Sun, 21 Aug 2022 13:18:39 +0000) 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:240316 Archived-At: > Date: Sun, 21 Aug 2022 13:18:39 +0000 > From: Gregory Heytings > cc: larsi@gnus.org, 57207@debbugs.gnu.org, yantar92@gmail.com > > >> Stefan said (IIUC) that it could be useful for Lisp programs, so it is > >> now possible to use it anywhere (but the docstring says that it should > >> be done sparingly). > > > > Which means that the code you installed on the branch will "undo" such > > narrowing done from Lisp as well, doesn't it? That might not be what > > the Lisp program which did that wanted. > > I'm not sure I understand what you mean. What the modeline should display > is the state of the "user" narrowing, not of a narrowing decided by a Lisp > function. We don't currently discern between these two, so some Lisp program could use this locked narrowing expecting to see it on the modeline. If that is not supposed to happen and/or is unsupported, we should at least document it.