From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Alexandre Garreau Newsgroups: gmane.emacs.help Subject: Verticality and future of display engine and lines (bis) [Was: Re: RTL lines] Date: Wed, 27 Oct 2021 16:50:17 +0200 Message-ID: <2251529.Z2IGfANImH@galex-713.eu> References: <3519414.WYFCpekPd3@galex-713.eu> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="7979"; mail-complaints-to="usenet@ciao.gmane.io" To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Oct 27 17:48:29 2021 Return-path: Envelope-to: geh-help-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 1mflAD-0001pH-3i for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 27 Oct 2021 17:48:29 +0200 Original-Received: from localhost ([::1]:34772 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mflAB-0000t6-Oz for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 27 Oct 2021 11:48:27 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53222) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mfkGE-0000kG-2s for help-gnu-emacs@gnu.org; Wed, 27 Oct 2021 10:50:40 -0400 Original-Received: from portable.galex-713.eu ([2a00:5884:8305::1]:49790 helo=galex-713.eu) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mfkFy-0003ng-OZ for help-gnu-emacs@gnu.org; Wed, 27 Oct 2021 10:50:37 -0400 Original-Received: from gal by galex-713.eu with local (Exim 4.92) (envelope-from ) id 1mfkFu-0001Cg-8I for help-gnu-emacs@gnu.org; Wed, 27 Oct 2021 16:50:18 +0200 In-Reply-To: <3519414.WYFCpekPd3@galex-713.eu> Received-SPF: pass client-ip=2a00:5884:8305::1; envelope-from=galex-713@galex-713.eu; helo=galex-713.eu X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:134232 Archived-At: I just coincidentally ended on a webpage with a vertical script (which=20 surprisingly to me displayed correctly under firefox): https://fr.wikipedia.org/wiki/Sakhaline However copypasting that into emacs, or viewing the page with Eww makes=20 that text incorrectly LTR. Hence I suppose emacs doesn=E2=80=99t yet suppo= rt=20 viewing and editing TTB/BBT text as such=E2=80=A6 Have there been an attempt at that? Anyway, what would a such change=20 require and how much would it overturn the current display engine? would a= =20 solution to that problem possibly cover up with the problem I raised in=20 the other almost-homonym thread? Le lundi 18 octobre 2021, 14:40:42 CEST Alexandre Garreau a =C3=A9crit : > Is there a var to make any line whose first either rtl or ltr char is > RTL be displayed RTL (so for instance an org-mode definition list (with > ::) would be displayed RTL with the bullets at right, if the defining > terms (at the beginning, just after the */+/-/etc.) are in > arabic/hebrew/etc.)? >=20 > Another idea I have is is there a way to do that per-paragraph (for > instance for a defun that would use a such language)? >=20 > and arbitrarily (for direction-agnostic languages such as some extreme- > oriental ones)? >=20 > and does emacs support TTB/BTT (top to bottom, bottom to top), because I > feel that would be a better use of human peripheral vision and physical > ergonomical limit of line-length?