Additional 'namespace' attribute on content element?

[Jan Algermissen <algermissen1971@xxxxxxx>]

Hi,

on the NewsML list, an issue came up that due to they lack of a MIME type for NewsML using NewsML as Atom content is somewhat problematic[1]; I think this is the case with most of the more interesting XML applications out there.

Is there any chance to extend/revise Atom to allow an attribute on the content element that allows to specify the namespace of XML content given the MIME type is declared as application/xml or text/xml?

Actually, there is no posibility to do this as an Atom extension, is there?

What is the opinion of the compund document formats experts on this?

Note:

I recall Mark Baker using something similar in his former RDF Forms draft:

<rf:Container xmlns:rf="http://www.markbaker.ca/2003/rdfforms/";
              xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
              rdf:about="http://shoes.example.com/order-processor/";>
  <rf:acceptedMediaType>application/xml</rf:acceptedMediaType>
  <rf:acceptedNamespace rdf:resource="http://shoe-standards.example.org/orders/shoes/"/>  <<============
  <rf:intent rdf:resource="http://shoe-standards.example.org/order-shoes/"/>
</rf:Container>

Jan


[1] http://tech.groups.yahoo.com/group/newsml/message/2424
[2] http://www.markbaker.ca/2003/05/RDF-Forms/rdf-forms-old1.html