The "not-language" identifier (was: RE: Mandarin Chinese, Simplified Script)

[L.Gillam]

The link:
http://www.stylusstudio.com/w3c/xml11/sec-lang-tag.htm
should have appeared below item (1) with ref to there being
"no language information available". 

> -----Original Message-----
> From: Gillam L Dr (Computing) 
> Sent: 16 June 2005 16:59
> To: ietf-languages at iana.org
> Subject: RE: The "not-language" identifier (was: RE: Mandarin
> Chinese,Simplified Script)
> 
> 
> 
> John,
> 
> Not really clear on that: according to the rec, the empty value
> is used to override an xml:lang on an enclosing element without
> specifying a language - an example, I guess, would be something like:
> 
> <tag xml:lang="en">
> 	<tag xml:lang="fr">
> 		<tag xml:lang=""> (1)
> 		<tag xml:lang="xnl"> (2)
> 
> (1) appears to say that there is a language, but we're not telling.
> (2) would suggest that there is no language to be had, and that all
> bets on language are now off, which some might think that (1) would 
> imply without reading through sections on XML - assumption being a 
> parent to certain things.
>>