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The XSLT and XQuery Processor

There is a newer version: 12.5



    Package overview: com.saxonica.hof



The package com.saxonica.hof contains code to support higher-order functions.

Higher-order functions are supported in XSLT 3.0, XPath 3.1, and XQuery 3.1, in Saxon-PE and Saxon-EE only.

The package includes code to support both the core facilities of dynamic creation and invocation of function
objects, and also specific higher-order functions defined in the Functions and Operators library
such as fn:filter, fn:for-each and fn:fold-left.