• To: "'Alan Gutierrez'" <alan-xml-dev@e...>,<xml-dev@l...>
• Subject: RE: XML Schema Either Text Or Sequence
• From: "Michael Kay" <mike@s...>
• Date: Mon, 20 Dec 2004 08:48:18 -0000
• In-reply-to: <20041220024655.GA11749@m...>
• Thread-index: AcTmPnIbcmGOsaWQQ4+CI0ZRkogHOwAMaNkQ

> 
>     I'd like to assert that the element set either contains a simple
>     type or more set elements.
> 
> 
>     I can't figure out how to make a union of the two. I'm beginning
>     to think that this is non-deterministric, or in some other
>     way a bad design.
> 

It's entirely deterministic, in the sense that there are simple finite state
machines that could validate your document against this constraint. The only
thing that makes it a bad design is that XML Schema can't describe it.

Michael Kay
http://www.saxonica.com/

• References:
  • XML Schema Either Text Or Sequence
    • From: Alan Gutierrez <alan-xml-dev@e...>

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