From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.org!not-for-mail
From: Jason Rumney <jasonr@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: blank-mode.el
Date: Wed, 14 Nov 2007 00:19:00 +0000
Message-ID: <473A3EF4.1030703@gnu.org>
References: <BNELLINCGFJLDJIKDGACCEDICEAA.drew.adams@oracle.com>	<m1IqafL-002K4AC@rattlesnake.com>
	<4736653E.7080504@ig.com.br>	<m1IrBmr-002K4AC@rattlesnake.com>
	<47371847.9020507@gnu.org>	<m1IrGyc-002K4AC@rattlesnake.com>
	<473772D7.2010509@ig.com.br>	<878x545u92.fsf@jurta.org>	<f7ccd24b0711111359n3fcbf09cj3b3e4fc6db83e874@mail.gmail.com>	<473798D6.6090004@ig.com.br>	<f7ccd24b0711111528w1f993e0fgf7f89d6c8484b9e6@mail.gmail.com>	<4737A1B9.4030405@ig.com.br>
	<m1Irdzt-002K4CC@rattlesnake.com>	<4738CADD.8070709@ig.com.br>
	<m1IrtHA-002K4AC@rattlesnake.com>	<473994E5.9070308@ig.com.br>
	<4739D3C8.5020005@ig.com.br> <8764054sef.fsf@jurta.org>
NNTP-Posting-Host: lo.gmane.org
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
X-Trace: ger.gmane.org 1194999573 32645 80.91.229.12 (14 Nov 2007 00:19:33 GMT)
X-Complaints-To: usenet@ger.gmane.org
NNTP-Posting-Date: Wed, 14 Nov 2007 00:19:33 +0000 (UTC)
Cc: emacs-devel@gnu.org
To: Juri Linkov <juri@jurta.org>
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Nov 14 01:19:38 2007
Return-path: <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>
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 4.50)
	id 1Is5yf-0006tK-VJ
	for ged-emacs-devel@m.gmane.org; Wed, 14 Nov 2007 01:19:34 +0100
Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43)
	id 1Is5yT-0007dh-4b
	for ged-emacs-devel@m.gmane.org; Tue, 13 Nov 2007 19:19:21 -0500
Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1Is5yN-0007b8-OQ
	for emacs-devel@gnu.org; Tue, 13 Nov 2007 19:19:15 -0500
Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1Is5yM-0007Yh-D9
	for emacs-devel@gnu.org; Tue, 13 Nov 2007 19:19:14 -0500
Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1Is5yM-0007YH-7i
	for emacs-devel@gnu.org; Tue, 13 Nov 2007 19:19:14 -0500
Original-Received: from outmail1.freedom2surf.net ([194.106.33.237])
	by monty-python.gnu.org with esmtp (Exim 4.60)
	(envelope-from <jasonr@gnu.org>) id 1Is5yL-00065x-Tb
	for emacs-devel@gnu.org; Tue, 13 Nov 2007 19:19:14 -0500
Original-Received: from [127.0.0.1] (i-83-67-23-108.freedom2surf.net [83.67.23.108])
	by outmail1.freedom2surf.net (Postfix) with ESMTP
	id A0BC851488; Wed, 14 Nov 2007 00:19:12 +0000 (GMT)
User-Agent: Thunderbird 2.0.0.6 (Windows/20070728)
In-Reply-To: <8764054sef.fsf@jurta.org>
X-detected-kernel: by monty-python.gnu.org: Linux 2.4-2.6
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "Emacs development discussions." <emacs-devel.gnu.org>
List-Unsubscribe: <http://lists.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/emacs-devel>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <http://lists.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=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:83148
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/83148>

Juri Linkov wrote:
> (char-displayable-p ?\u21B5)
>
> returns when ?\u21B5 is displayed as an empty rectangle box:
> "-Misc-Fixed-Medium-R-SemiCondensed--12-110-75-75-C-60-ISO10646-1"
>
> returns when ?\u21B5 is displayed normally as an arrow:
> "-Misc-Fixed-Medium-R-SemiCondensed--13-120-75-75-C-60-ISO10646-1"
>   

In emacs-unicode-2, it might be possible to return character granularity
results with at least some font backends.