From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Yuri D'Elia Newsgroups: gmane.emacs.devel Subject: Redisplay loop with an unicode overlay-arrow-string Date: Thu, 21 Apr 2022 21:16:46 +0200 Message-ID: <87o80u6ych.fsf@wavexx.thregr.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="33830"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: emacs-devel@gnu.org Cancel-Lock: sha1:3UXRkVNC9F/eM2nY5JTJlyrv5OY= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Apr 21 21:19:48 2022 Return-path: Envelope-to: ged-emacs-devel@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 1nhcLD-0008ai-B7 for ged-emacs-devel@m.gmane-mx.org; Thu, 21 Apr 2022 21:19:47 +0200 Original-Received: from localhost ([::1]:43960 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nhcLC-00054C-Bl for ged-emacs-devel@m.gmane-mx.org; Thu, 21 Apr 2022 15:19:46 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:42518) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nhcIS-0001Za-QS for emacs-devel@gnu.org; Thu, 21 Apr 2022 15:16:56 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:59316) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nhcIR-0003PC-1r for emacs-devel@gnu.org; Thu, 21 Apr 2022 15:16:56 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1nhcIO-0004Nt-QJ for emacs-devel@gnu.org; Thu, 21 Apr 2022 21:16:52 +0200 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=ged-emacs-devel@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:288773 Archived-At: I'm disabling the left fringe to force using the overlay-arrow-string (due to the fringe being unreadable on hidpi displays). At some point I thought of being smart and attempt to: (setq overlay-arrow-string "🡆") ; RIGHTWARDS HEAVY ARROW since it's an uncommon/heavy character (while still being narrower than "=>"). Or just in case it's not readable for you, a more commonly available character: (setq overlay-arrow-string "⮕") ; RIGHTWARDS BLACK ARROW This results in an endless/unrecoverable redisplay loop on my current config, hanging emacs. To trigger on an emacs -q, evaluate this inside a buffer: (fringe-mode 0) ; force-disable the fringe (setq overlay-arrow-string "⮕") (setq overlay-arrow-position (set-marker (or overlay-arrow-position (make-marker)) (line-beginning-position)))