Re: DTD to Scheme

In general UPA violations are easily solved if you rewrite the ambiguous model in a non ambiguous way. In your case

<!ELEMENT item (risid,(waiting|passing|(waiting,passing)))>

can be written as

<!ELEMENT item (risid,((waiting, passing?)|passing))>

Yes, this is exactly what I need.
Thanks.

and the corresponding schema will be valid.

Hope that helps,
George
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George Cristian Bina
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
http://www.oxygenxml.com