RE: Media types

[email protected]
Newsgroups gmane.ietf.xml-mime
Message-ID <[email protected]>

> On Thu, 2002-01-17 at 18:32, Graham Klyne wrote:
> > Well, we now have ways to express other (non-primary) content types.
> >
> > E.g., per RFC 2912, RFC 2913, ...
> >
> >    Content-Type: multipart/mixed; boundary="break"
> >    Content-features:
> >      (& (Type="text/plain") (Type="image/jpeg") (Type="audio/wav") )

> Can we simply say (for an XHTML document also containing SVG, MathML,
> SMIL, and XLink):

> Content-Type: application/xhtml+xml
> Content-features: (&
> (xmlns="http://www.w3.org/1999/xhtml")
> (xmlns="http://www.w3.org/2000/svg")
> (xmlns="http://www.w3.org/1998/Math/MathML")
> (xmlns="http://www.w3.org/2001/SMIL20/")
> (xmlns="http://www.w3.org/1999/xlink")
> )

You can if xmlns is already defined. AFAIK it isn't, but defining it should
be easy.

> If so, then we may already be out of the brush, though my reading of RFC
> 2913 suggests that we would need to add xmlns to RFC 3023's existing
> structure.

Adding an additional attribute does not constitute a structural change.

					Ned
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