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Re: [xml-dev] Wikipedia on XML

On Fri, Aug 21, 2009 at 09:21:50PM -0700, Elliotte Rusty Harold wrote:
> On Fri, Aug 21, 2009 at 7:46 PM, Liam Quin<liam@w3.org> wrote:
> We don't have to speak in infoset language here. The critical points are:
> 1. All conformant parsers MUST process the internal DTD subset.

> 2. The DTD, including the internal DTD subset, can define new entity
> references.

> If they're defined in the internal DTD subset, the parser
> must expand these.
It must at least make the expansion available.

> 3. Nothing except a DTD can define entity references.
Right. (although the ISO Schema people seem to have other
ideas, see the DSRL draft for an example)

> There are other details (default attribute values, malformed internal
> DTD subsets, external entity references) but those are what really
> make it impossible to just ignore DTDs or claim they're just one kind
> of schema language.

I'd say they are a kind of schema laguage that's given special status
by the XML specification.  Ignoring the internal subset isn't an
option, for sure.



Liam Quin, W3C XML Activity Lead, http://www.w3.org/People/Quin/
http://www.holoweb.net/~liam/ * http://www.fromoldbooks.org/

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