Re: [xml] Xinclude w/DTD segs

[Bruce Miller <bruce miller nist gov>]

Daniel Veillard wrote:
> On Tue, Jun 19, 2001 at 11:19:26AM -0400, Bruce Miller wrote:
[..]
>    I have added an extra flag --loaddtd to force loading external DTD
>
>   and activated it by default when --postvalid is used:

Thanks! That's perfect.
I had just noticed something about loading external dtd in the api,
but wasn't yet sure if that was it... It was!

> > Or, must I explicitly declare xinclude in the dtd (and all the
> > places I'll allow <xi:xinclude> to appear?
>
>   Well depends what you want. If you want to validate the input document
> then yes, you should. If you want to validate the result, then no.

Aha! That question finally crystalizes the issue.
Entities only barely raise the distinction (from the user perspective,
probably not from the library developer's!), since they're in the dtd
anyway.  But since xinclude, as an extension, is optional, it forces 
that distinction to be made.

Of course, with xinclude's declared in the dtd, it raises the
possibility
of a document being valid before inclusion, but invalid after!
So, I guess xinclude has to be thought of a a form of transformation
rather than purely representation.

Thanks for taking the time for the clarifications!!
>   Admitted, it becomes rather complex when one start to stack multiple
> layers of optional processing. This is an actual open issue within
> W3C itself :-)
>
> Daniel
>
> --
> Daniel Veillard      | Red Hat Network http://redhat.com/products/network/
> veillard redhat com  | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
> http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/
> Sep 17-18 2001 Brussels Red Hat TechWorld http://www.redhat-techworld.com

-- 
----------------
Bruce Miller
<bruce miller nist gov>  http://math.nist.gov/~BMiller/