> I don't know how to write it with XPath 2, but wouldn't it be 
> simpler to
> say: "the context has the type xxx" where xxx is the type 
> defined in a schema, using schema-element() ?
> 
> I'm almost sure Saxon-SA can do that... any confirmation ?

If there is such a type then it can. But I somehow suspect Roger is writing
this XPath expression to go in an assertion within a schema. The rules are
carefully designed to avoid circularity: you can't check whether something
is an instance of a type during the process of validating it against that
type.

Regards,

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


_______________________________________________________________________

XML-DEV is a publicly archived, unmoderated list hosted by OASIS
to support XML implementation and development. To minimize
spam in the archives, you must subscribe before posting.

[Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/
Or unsubscribe: xml-dev-unsubscribe@l...
subscribe: xml-dev-subscribe@l...
List archive: http://lists.xml.org/archives/xml-dev/
List Guidelines: http://www.oasis-open.org/maillists/guidelines.php