DTD confusion (was Re: Lotsa laughs)

Chris Lilley chris at w3.org
Sat Jun 5 22:57:19 BST 1999

David Megginson wrote:
> David LeBlanc writes:
> (on DTDs)
>  > Ok, now i'm confused David - your second statement seems to
>  > contradict your first statement.
> If you give me a single, well-formed XML document, I can *always*
> write a DTD that describes its structure.

Yes. You declare each observed element, give it a content model of any,
declare each observed attribute, and make it PCDATA.

That minimally describes it, like an RFC 822 email message can be
describes as "a sequence of characters"; and likewise, it doesn't
necessarily fully describe it or capture all the constraints that would
be wished.


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