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RE: [docbook-apps] what's the value of the document type declarat ion?
- From: "Robert P. J. Day" <rpjday at mindspring dot com>
- To: Jeff Beal <jeff dot beal at ansys dot com>
- Cc: docbook apps list <docbook-apps at lists dot oasis-open dot org>
- Date: Tue, 3 Jun 2003 13:44:09 -0400 (EDT)
- Subject: RE: [docbook-apps] what's the value of the document type declarat ion?
On Tue, 3 Jun 2003, Jeff Beal wrote:
> However, as I think about it a little bit more, the document below is a
> well-formed document using general entities, but not pulling in an external
> DTD (assuming that introduction.xml and chapter1.xml are both well-formed
> XML fragments):
>
> <!DOCTYPE book [
> <!ENTITY introduction SYSTEM "introduction.xml">
> <!ENTITY chapter1 SYSTEM "chapter1.xml">
> ]>
> <book>
> <title>A Non-validating document</title>
> &introduction;
> &chapter1;
> </book>
>
> This won't validate, of course, because you haven't defined any elements,
> but an XML parser will still be able to find your document fragments.
i did check that out, but i was also trying to keep things relatively
mainstream, so i let that one go as being just a bit contrived.
so i'm adding to my little tutorial the functions of the document type
declaration:
1) for potential validation (non-essential for actual transformation)
2) for default attribute values defined in the DTD
3) for included entities
4) for the ability to define additional internal and external
general entities
i think i'll leave out the ability to have internal DTD subsets --
that's just a bit much for now. thanks.
rday
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