- From: Martin Duerst <duerst@it.aoyama.ac.jp>
- Date: Fri, 23 Mar 2007 14:08:41 +0900
- To: Jon Hanna <jon@hackcraft.net>, Richard Ishida <ishida@w3.org>
- Cc: www-international@w3.org
At 23:38 07/03/22, Jon Hanna wrote: >I agree with those who consider XHTML1.0 not allowing an empty xml:lang attribute value as obsolete (or an error? Did the first edition of the XML1.0 spec prohibit empty xml:lang?). Yes, an empty value wasn't taken into consideration in the first edition of XML 1.0. We only later became aware of the need, in scenarios such as XML Signature and RDF,... where pieces of data from various places are put together. So the XML 1.0 spec was updated to clarify that an empty string is allowed, and what it means. As a consequence, nowadays, whenever I design something, I always try about the need for 'undefined' and similar values. But my thinking never got as detailled as the list drawn up by Asmus. Regards, Martin. #-#-# Martin J. Du"rst, Assoc. Professor, Aoyama Gakuin University #-#-# http://www.sw.it.aoyama.ac.jp mailto:duerst@it.aoyama.ac.jp
Received on Friday, 23 March 2007 06:35:09 UTC