From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Raphael 'kena' Poss Newsgroups: gmane.emacs.bugs Subject: bug#39390: 28.0.50; prettify-symbols-mode confuses display when start/end faces are different Date: Mon, 17 Feb 2020 13:37:07 -0500 Message-ID: References: <3184164c-5d94-6cb3-aca4-338b710bf97f@thaumogen.net> <83eevcj4ar.fsf@gnu.org> <83blqgj285.fsf@gnu.org> <34ca60a0-3658-0e64-b16f-829d914d4b81@thaumogen.net> <837e14iynq.fsf@gnu.org> <27701089-4429-f345-6ecd-4f11d3124a8c@thaumogen.net> <8336bsiwe2.fsf@gnu.org> <83v9onhdq4.fsf@gnu.org> <83o8tymnlk.fsf@gnu.org> <83mu9imitt.fsf@gnu.org> <83lfp2mimd.fsf@gnu.org> <50e865ca-58f4-7111-65de-15be80741357@thaumogen.net> <83k14mmgcq.fsf@gnu.org> <87ftf931kw.fsf@gnu.org> <875zg5432t.fsf@gnu.org> <83blpxm89v.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="54688"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 Cc: 39390@debbugs.gnu.org To: Eli Zaretskii , Tassilo Horn Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Feb 17 19:38:15 2020 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 1j3lHa-000E64-HS for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 17 Feb 2020 19:38:14 +0100 Original-Received: from localhost ([::1]:50584 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j3lHZ-00059c-J5 for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 17 Feb 2020 13:38:13 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:47562) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j3lHP-00056w-7N for bug-gnu-emacs@gnu.org; Mon, 17 Feb 2020 13:38:04 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j3lHO-0005mP-8u for bug-gnu-emacs@gnu.org; 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Mon, 17 Feb 2020 13:37:07 -0500 (EST) Autocrypt: addr=knz@thaumogen.net; prefer-encrypt=mutual; keydata= mQSuBFN56cERDACePTTZjZwCCXm5d4VheFgjGYG9kY3FNlmGOP2UtwHnbhK5TIe+8GYjE+8R uNuf49+zvDFDtBgwGwi0WQndC/OOhRqg2OyTjNNJWtnvbpiwSGBI15acvL/7gLkZPHi4IR7q 6RnV+Uj76G8h0jyoLzkrdilvJe8xdkQ+zEPuqIxFRwr/Of2/fbt6icSiIpNvOKAD8xhNWWlF NW3QS4h4ug7v2ntrwZTam7I4W7GOubMhThZoCRWCVSN/V37yGOAvHdiaHb5cDdayQN3obH9c kpMTreichl6/0Gklx6OgGLjnRl7UeHSUa9VaINpbVPHZyye6KNCAYxF7ppCVfJOt6Xv+Wih9 F4G7D3nVlOxHeXUph+oqsiJXCX/niBPkb0NjQv0ZqDvEK6u/uZNSvM0y+1K64aE5oMdQd1EY DWZDWlBPcispKi6MQnRfw7PXrXGcuHJ5x5VbLRLOzMMyqP6XdJgcGwoMkH8HCdV+P8t8tc9+ En8diYj91GGPVQG542fB9asBALzvA44LMFPh0CmiJltaXXcp1VDUhyww7F/BBa6TW6OjC/4r 0xupaCFwIO74D1y4QuGwBZRrKFTxC0zyvtnKyAnNexpwDZFZmCuMxkZDAN0TcF5Slkr9k8SB 7rBGjkDfuHZ9YB1e8LQQMaYM4p743q6cQeGJ++YgaHQu/r4RulTICOeq1av0yYJ0i9gEZA6M OHKHvu0PxRD8jy3ybMdW2a8WYoHIL8Fg3BjWIV6gBkcYuwQYVLQCR8seMZl5+YafTLWU8YuF txDOXNWueeFbKALKb4 In-Reply-To: <83blpxm89v.fsf@gnu.org> Content-Language: en-US X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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:176154 Archived-At: On 17-02-2020 12:30, Eli Zaretskii wrote: > So this limitation is not > really arbitrary, and can only be lifted by a thorough redesign of how > the display engine traverses the text it is about to display, and what > it does when it meets a composition that crosses face boundaries. My humble opinion on this is that either the compose function should report an exception / error, or pick some arbitrary behavior (e.g. just use the 1st face for the entire substitution) and use that. It seems strange to me to accept the current non-deterministic, display-corrupting behavior as a reasonable alternative. -- Raphael 'kena' Poss