On Mon, 2007-06-25 at 15:22 +0900, olivier Thereaux wrote: > Hi Tim, Hi TAG list, > (note I'm not subscribed, would appreciate being kept in Cc) [...] > > - Therefore, groups like ARIA ought to be able to extend XHTML by > > introducing new elements and attributes. > > I think we have seen some progress in this area. See how the XHTML > +RDFa was created, and can be validated (with the beta-soon-released > validator only, for now). Note that they had to go and create a > profile and DTD, that is, an XHTML+RDFa document cannot claim to be > an XHTML document, with some stuff in a foreign namespace slapped > into it. That, I believe, is contrary to the basic conformance > statement for XHTML: http://www.w3.org/TR/xhtml1/#strict This involves making a new driver DTD, right? Contrast that with the my:box usecase, which I suggest is more web-like: http://lists.w3.org/Archives/Public/public-xml-versioning/2007Feb/0000 It seems to me that XML Schema substitution group were designed for exactly this sort of extensibility, but XHTML, SMIL, SVG, nor CDF is using it, and I can't figure out why not. -- Dan Connolly, W3C http://www.w3.org/People/Connolly/Received on Wednesday, 5 September 2007 22:21:11 UTC
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