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   Re: XSchema: root element

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  • From: Marcus Carr <mrc@allette.com.au>
  • To: xml-dev@ic.ac.uk
  • Date: Fri, 03 Jul 1998 19:28:28 +1000

Michael Kay wrote:

> I would certainly like to be able to declare in a DTD that
> certain elements are valid roots and others are not.
> Assuming there is technology to validate a document against
> an XSchema, it moves one more validity check out of my
> application and into the schema.
> In the DTDs I have written, very few of the element types
> (often just one) are valid roots, so my own choice of
> default would be INVALID.

Not me - conversion work of legacy data routinely involves pulling documents to
pieces, working on a fragment (such as a table) then putting it all back
together. A language such as OmniMark will allow you to find fragments without
parsing the data around it - under those circumstances, what is proposed is
unduly restrictive.


Marcus Carr                  email:  mrc@allette.com.au
Allette Systems (Australia)  email:  info@allette.com.au
Level 10, 91 York Street     www:    http://www.allette.com.au
Sydney 2000 NSW Australia    phone:  +61 2 9262 4777
                             fax:    +61 2 9262 4774

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