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(115-166-3-8.ip.adam.com.au [115.166.3.8]) by mx.google.com with ESMTPS id l31sm529674rvb.4.2009.01.29.13.54.51 (version=TLSv1/SSLv3 cipher=RC4-MD5); Thu, 29 Jan 2009 13:54:52 -0800 (PST) Content-Type: multipart/signed; boundary=Apple-Mail-1--591665954; micalg=sha1; protocol="application/pkcs7-signature" Mime-Version: 1.0 (Apple Message framework v930.3) References: <4982142F.6090004@morningstar2.co.uk> X-Mailer: Apple Mail (2.930.3) X-Spam-Whitelist: Message-ID: <952160A8-75F7-458D-8430-807155BEF3A8@gmail.com> Date: Fri, 30 Jan 2009 08:24:47 +1030 Reply-To: Mailing list for the LaTeX3 project Sender: Mailing list for the LaTeX3 project From: Will Robertson Subject: Re: \tlist_head_iii:n "health warning" To: LATEX-L@LISTSERV.UNI-HEIDELBERG.DE In-Reply-To: <4982142F.6090004@morningstar2.co.uk> Precedence: list List-Help: , List-Unsubscribe: List-Subscribe: List-Owner: List-Archive: 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: 29 Jan 2009 21:58:10.0563 (UTC) FILETIME=[ACDE6D30:01C9825C] Status: R X-Status: X-Keywords: X-UID: 5642 --Apple-Mail-1--591665954 Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit On 30/01/2009, at 7:10 AM, Joseph Wright wrote: > It occurs to me that the tlist head functions could do with a health > warning. For example, try: > > \tlist_head_iii:n{1} > > The documentation doesn't explicitly say that you need to check first > that the tlist is sufficiently long. I'd probably propose that it would be better if the function performed the check itself, or if the tlist were padded with empties or (probably not) \q_no_value's to prevent the error? 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