[css3-namespace] 4. CSS Qualified Names

Dear CSS WG,

This is a last call comment from the SVG WG on the CSS Namespaces Module,  
W3C Working Draft 15 February 2008,  
http://www.w3.org/TR/2008/WD-css3-namespace-20080215/. Please let us know  
if you have any questions by CC:ing your responses to www-svg@w3.org.

> Some contexts may allow the use of an asterisk (*, U+002A) as a
> wildcard prefix to indicate a name in any namespace, including no
> namespace.

What exactly does "contexts" mean here? Perhaps an example of a context
that allows asterisks, and one that doesn't would make it easier to
understand. If this is defined by the host language, please say so  
explicitly.

> Those modules must define handling of namespace prefixes that have not  
> been properly declared.

Please add informative references to modules that define this.

> Such handling should treat undeclared namespace prefixes as a parsing
> error that will cause the selector or declaration (etc.) to be considered
> invalid and, in CSS, ignored.

Please explain the rationale for why this is not a MUST requirement, for
example by citing a use-case for allowing the stylerule to not be ignored
in this context.

Regards
/Erik, on behalf of the SVG WG

-- 
Erik Dahlstrom, Core Technology Developer, Opera Software
Co-Chair, W3C SVG Working Group
Personal blog: http://my.opera.com/macdev_ed