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   Re: [xml-dev] XSD spec question

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Gregor wrote:

>The fact that that the Schema for Schemas can not be used for
>validating schemas can be checked here.
>(A reply by Xerces Project Lead Gareth Reakes to my mailinglist post
>on xerces-user-j on apache.org:
>However, his is not in-line with the original design goals from 1999:
>"The XML schema language must:...
>define a useful XML schema for XML schemas;"
>The schema for schemas may be found here:
>Maybe somebody can tell me what its use is if we can not use it in validation?
Bootstrapping is a special case. Schema processors are not required to 
the formal schema for schemas: its purpose is in part to express the 
built-in parts
of the type-system using the same notation as actual schemas use.

But it is possible to derive a usable schema for schemas by editing the 
schema for schemas. That is what Topologi products use, for example.

Rick Jelliffe


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