Re: [xml-names] empty string namespace name

> It's unclear when  
> http://www.w3.org/TR/2006/PER-xml-names-20060614/#iri-use the empty string  
> is used as namespace name (as in `<a xmlns:b=""/>`) a  
> non-namespace-well-formed error should be thrown or not. That it cannot be  
> used as a namespace name doesn't really say anything about what the  
> processor has to do with it.

See http://www.w3.org/TR/2006/PER-xml-names-20060614/#dt-prefix,
which says "the namespace name may not be empty".  Of course, this 
should be an RFC2119 "must not".

-- Richard