Tim Bray tbray at textuality.com
Wed Feb 24 20:09:51 GMT 1999

At 02:49 PM 2/24/99 -0500, David Megginson wrote:
>Jonathan Borden writes:
> > excellent. one point: there is no reason to define text/xhtml as
> > opposed to using text/xml and inserting a DOCTYPE or perhaps a
> > default xmlns definition. If a user-agent needs to know the DOCTYPE
> > ... look at it!
>Unfortunately, that doesn't work at all -- all DOCTYPE gives me is the
>name of the root element, optionally accompanied by an internal DTD
>subset and identifiers for an external DTD subset.

Right; as many have pointed out, in both SGML and XML the <!DOCTYPE
doesn't tell you much about the document type.

>The name of the root element is locally-scoped to the document itself,

Yes, but what if it wasn't?  It just dawned on me that if you had
*two* header parameters for text/html, one being the namespace URI of
the root, the other being its type, that would really give you a lot
of help in identifying what kind of thing this is.

E.g., if the namespace URI is http://www.w3.org/html40 (or whatever
they decide to use) and the root type is <html>, well, you know 
pretty well what you're dealing with.


xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev at ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
To (un)subscribe, mailto:majordomo at ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo at ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa at ic.ac.uk)

More information about the Xml-dev mailing list