From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.devel,gmane.emacs.bidi Subject: Re: Mixed L2R and R2L paragraphs and horizontal scroll Date: Sat, 30 Jan 2010 20:45:50 +0100 Message-ID: <4B648C6E.8080905@gmx.at> References: <83tyu3iu6b.fsf@gnu.org> <4B645FF4.30205@gmx.at> <83ockbil1v.fsf@gnu.org> <4B646AD3.1010102@gmx.at> <83mxzviio5.fsf@gnu.org> <4B647AE5.5090001@gmx.at> <83ljffif09.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1264880767 13192 80.91.229.12 (30 Jan 2010 19:46:07 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 30 Jan 2010 19:46:07 +0000 (UTC) Cc: emacs-bidi@gnu.org, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Jan 30 20:46:04 2010 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1NbJGd-0003HB-CH for ged-emacs-devel@m.gmane.org; Sat, 30 Jan 2010 20:46:03 +0100 Original-Received: from localhost ([127.0.0.1]:51317 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NbJGc-0008Cw-SW for ged-emacs-devel@m.gmane.org; Sat, 30 Jan 2010 14:46:02 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NbJGX-0008Cp-FC for emacs-devel@gnu.org; Sat, 30 Jan 2010 14:45:57 -0500 Original-Received: from [199.232.76.173] (port=42906 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NbJGW-0008Bj-1r for emacs-devel@gnu.org; Sat, 30 Jan 2010 14:45:56 -0500 Original-Received: from Debian-exim by monty-python.gnu.org with spam-scanned (Exim 4.60) (envelope-from ) id 1NbJGT-0005Il-NS for emacs-devel@gnu.org; Sat, 30 Jan 2010 14:45:55 -0500 Original-Received: from mail.gmx.net ([213.165.64.20]:34439) by monty-python.gnu.org with smtp (Exim 4.60) (envelope-from ) id 1NbJGT-0005IT-3L for emacs-devel@gnu.org; Sat, 30 Jan 2010 14:45:53 -0500 Original-Received: (qmail invoked by alias); 30 Jan 2010 19:45:51 -0000 Original-Received: from 62-47-62-71.adsl.highway.telekom.at (EHLO [62.47.62.71]) [62.47.62.71] by mail.gmx.net (mp071) with SMTP; 30 Jan 2010 20:45:51 +0100 X-Authenticated: #14592706 X-Provags-ID: V01U2FsdGVkX19vSjMXWvZv3hK85YvfTeHrOAW2GnuCWJluwjoKKv JtPBcYCoE3L83k User-Agent: Thunderbird 2.0.0.21 (Windows/20090302) In-Reply-To: <83ljffif09.fsf@gnu.org> X-Y-GMX-Trusted: 0 X-FuHaFi: 0.62 X-detected-operating-system: by monty-python.gnu.org: Genre and OS details not recognized. X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:120719 gmane.emacs.bidi:475 Archived-At: >> Inconvenient for the user. Why scroll something out of view if there's >> no urgent need to do so. (Although a similar argument could be made for >> pure LR text as well > > Exactly! So perhaps we should adopt this design, Which one? > as it doesn't make > things worse and does not require additional interfaces (such as > `window-RL-hscroll'). > >> > That's what would happen if the second line was >> > displayed at the left margin, like this: >> > >> > +---------+---------+-------------------+ >> > |$ijk |abcdefgh$|abcdefghijk | >> > |$IJK |$HGFEDCBA| KJIHGFEDCBA| >> ^^^^^^^^^ >> > | | | | >> > +---------+---------+-------------------+ >> >> I fail to understand the marked text in your example. > > In the current unidirectional display, where text is always displayed > in its logical (i.e. reading) order, the second line would have been > displayed as "ABCDEFGHIJK", flushed to the left margin. Then when the > line above it is scrolled to show just "$ijk", so would be the second > line, and it would display as "$IJK". I still don't get you. In your earlier examples capitalized text always showed reverse as KJI and not as IJK. But I also fail to understand why there's no text on the right of this. So maybe you meant something like +---------+---------+-------------------+ |$ijk |abcdefgh$|abcdefghijk | | KJIHGFE$| $| KJIHGFEDCBA| | | | | +---------+---------+-------------------+ (no text in the second line of the second window) instead? > My point was that the bidirectional display conceptually does the > same, except it reverses the characters and flushes them to the right. I suppose this would apply regardless of the strategy chosen. martin