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- From: Eric Bohlman <email@example.com>
- To: firstname.lastname@example.org
- Date: Wed, 09 Aug 2000 20:03:07 -0700 (PDT)
On Wed, 9 Aug 2000 email@example.com wrote:
> Even then it wouldn't really validate against the original DTD - even if the
> DTD used the prefix 'xxx' - because there is no top-level element <book> as
> called for in the DTD.
> Maybe this is what should happen when a foreign xml structure is included,
> if you are validating. The processor locates the DTD of the inclusion, but
> builds its syntax starting, not at the start of the DTD, but at the included
> elements(s). Thus, larger contexts would be thrown away, and only those
> declarations in-scope for the elements of interest would be retained in the
> final syntax. While we're doing this, we might as well have the DTD
> processor implicitly add on the new prefix(s).
I think you're forgetting that a document type *definition* does *not*
specify a document's root element; it's a document type *declaration* that
does. Of course, the declaration needs to specify an element defined in
the definition, but that's pretty much it. So, for example,
<p>This is a paragraph</p>
*is* valid according to the XHTML DTD *if* you tell the processor to treat
<p> as the root element. Nothing in the XHTML DTD demands that <html> be
the root element; that knowledge comes from outside the DTD itself.