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   Re: [xml-dev] ANN: xpath1() scheme for XPointer

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Elliotte Rusty Harold <elharo@metalab.unc.edu> writes:

> At 7:07 PM +1100 10/27/02, Rick Jelliffe wrote:
> >I've never quite cottened on to why XIncludes are useful.  Is it because
> >the longevity of ID/IDREF means that "document scope" has not gone
> >away, yet because entities are not first-class constructs in XML the current
> >generation of tools promotes an all-element solution (and bugger the
> >structure)?
> >
> They have one crucial feature external entities don't for me: both the
> whole and the part documents can be fully valid documents. Sometimes I
> want to publish my whole book. Sometimes I just want to publish a
> chapter. Since I'm writing in DocBook with lots of entities,
> publishing the chapter requires it to have a DTD and thus a document
> type declaration, which prevents it from being an external parsed
> entity.

XInclude must be simpler than a document that references both a DTD
and an entity?

<!DOCTYPE chapter SYSTEM "book.dtd" [
  <!ENTITY chapter SYSTEM "ch1.ent">

(I'm assuming the external entity has one root element)



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