Received: from mail.proteosys.com ([213.139.130.197]) by nummer-3.proteosys with Microsoft SMTPSVC(6.0.3790.3959);
	 Sat, 13 Sep 2008 10:37:29 +0200
Received: by mail.proteosys.com (8.13.8/8.13.8) with ESMTP id m8D8bOWD026916
	for <rainer.schoepf@PROTEOSYS.COM>; Sat, 13 Sep 2008 10:37:25 +0200
Received: from listserv.uni-heidelberg.de (listserv.uni-heidelberg.de [129.206.100.94])
	by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id m8D8W0l0024971
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO);
	Sat, 13 Sep 2008 10:32:00 +0200
Received: from listserv.uni-heidelberg.de (localhost.localdomain [127.0.0.1])
	by listserv.uni-heidelberg.de (8.13.1/8.13.1) with ESMTP id m8CM1JlC006892;
	Sat, 13 Sep 2008 10:31:53 +0200
Received: by LISTSERV.UNI-HEIDELBERG.DE (LISTSERV-TCP/IP release 15.5) with
          spool id 29771 for LATEX-L@LISTSERV.UNI-HEIDELBERG.DE; Sat, 13 Sep
          2008 10:31:52 +0200
Received: from relay.uni-heidelberg.de (relay.uni-heidelberg.de
          [129.206.100.212]) by listserv.uni-heidelberg.de (8.13.1/8.13.1) with
          ESMTP id m8D8VqxH015015 for <LATEX-L@LISTSERV.UNI-HEIDELBERG.DE>;
          Sat, 13 Sep 2008 10:31:52 +0200
Received: from anchor-post-36.mail.demon.net (anchor-post-36.mail.demon.net
          [194.217.242.86]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with
          ESMTP id m8D8VdlL024574 for <LATEX-L@LISTSERV.UNI-HEIDELBERG.DE>;
          Sat, 13 Sep 2008 10:31:43 +0200
Received: from morningstar2.demon.co.uk ([80.176.134.7] helo=[192.168.0.3]) by
          anchor-post-36.mail.demon.net with esmtp (Exim 4.67) id
          1KeQXb-000Bpa-LV for LATEX-L@LISTSERV.UNI-HEIDELBERG.DE; Sat, 13 Sep
          2008 08:31:39 +0000
User-Agent: Thunderbird 2.0.0.16 (Windows/20080708)
MIME-Version: 1.0
References: <48C97D32.80105@morningstar2.co.uk>           
            <D716480F-041E-4B2F-98C2-83833D4EA6E5@gmail.com>           
            <48CB5BE7.9000006@morningstar2.co.uk>
            <8B45A476-FFF8-4CC9-AA14-332A0F0EBA77@gmail.com>
X-Enigmail-Version: 0.95.7
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Message-ID:  <48CB7A6B.4090005@morningstar2.co.uk>
Date:         Sat, 13 Sep 2008 09:31:39 +0100
Reply-To: Mailing list for the LaTeX3 project
              <LATEX-L@LISTSERV.UNI-HEIDELBERG.DE>
Sender: Mailing list for the LaTeX3 project <LATEX-L@LISTSERV.UNI-HEIDELBERG.DE>
From: Joseph Wright <joseph.wright@MORNINGSTAR2.CO.UK>
Subject: Re: l3messages
To: LATEX-L@LISTSERV.UNI-HEIDELBERG.DE
In-Reply-To:  <8B45A476-FFF8-4CC9-AA14-332A0F0EBA77@gmail.com>
Precedence: list
List-Help: <http://listserv.uni-heidelberg.de/cgi-bin/wa?LIST=LATEX-L>,
           <mailto:LISTSERV@LISTSERV.UNI-HEIDELBERG.DE?body=INFO%20LATEX-L>
List-Unsubscribe: <mailto:LATEX-L-unsubscribe-request@LISTSERV.UNI-HEIDELBERG.DE>
List-Subscribe: <mailto:LATEX-L-subscribe-request@LISTSERV.UNI-HEIDELBERG.DE>
List-Owner: <mailto:LATEX-L-request@LISTSERV.UNI-HEIDELBERG.DE>
List-Archive: <http://listserv.uni-heidelberg.de/cgi-bin/wa?LIST=LATEX-L>
X-ProteoSys-SPAM-Score: -2.599 () BAYES_00
X-Scanned-By: MIMEDefang 2.64 on 213.139.130.197
Return-Path: owner-latex-l@LISTSERV.UNI-HEIDELBERG.DE
X-OriginalArrivalTime: 13 Sep 2008 08:37:29.0710 (UTC) FILETIME=[F54880E0:01C9157B]
Status: R
X-Status: 
X-Keywords:                  
X-UID: 5311

Will Robertson wrote:
> On 13/09/2008, at 3:51 PM, Joseph Wright wrote:
> 
>> Using \PackageError {package} {A traditional error} \@ehc:
>>
>> ! Package package Error: A traditional error.
>>
>> See the package package documentation for explanation.
>> Type  H <return>  for immediate help.
>> ...
>>
>> l.45 @ehc\endcsname}
>>
>> ?
>>
>> We still have the TeX part starting with the number, but no code line
>> directly underneath the test.
> 
> Ah, yes.  I was confusing myself.
> I've never looked at how this is done internally before, but I'll add it
> to the list.

By the way, have you noticed that the errors always say :

LaTeX error on line <line> of file no file.

I guess something is not being set to show the file name.
-- 
Joseph Wright