[xquery-talk] Union types

[James A. Robinson]

> The problem occurs if myProp is a simpleType with an union.  I do not
> know how to cast the input data.  I tried using "instance of" on the
> literal value operator but quickly found out that "1999-12-31T12:00:00"
> instance of xs:dateTime yields false.  If I don't do any casting I get
> an exception.  
> 
> Are there any suggestion as to how to deal with this issue?

Does '$foo castable as xs:dateTime' help you?

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James A. Robinson                       jim.robinson at stanford.edu
Stanford University HighWire Press      http://highwire.stanford.edu/
+1 650 7237294 (Work)                   +1 650 7259335 (Fax)