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Altova MapForce 2021 Basic Edition

Appendices > Engine information

XSLT and XQuery Engine Information

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The XSLT and XQuery engines of MapForce follow the W3C specifications closely and are therefore stricter than previous Altova engines—such as those in previous versions of XMLSpy. As a result, minor errors that were ignored by previous engines are now flagged as errors by MapForce.


For example:


It is a type error (err:XPTY0018) if the result of a path operator contains both nodes and non-nodes.

It is a type error (err:XPTY0019) if E1 in a path expression E1/E2 does not evaluate to a sequence of nodes.


If you encounter this kind of error, modify either the XSLT/XQuery document or the instance document as appropriate.


This section describes implementation-specific features of the engines, organized by specification:


XSLT 1.0

XSLT 2.0

XQuery 1.0


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