com.saxonica.extra
Classes 
AnalyzeStringFunction
AttributeCopier
DynamicFunction
DynamicFunctionCall
ExtraFunctionLibrary
Find
FirstClassFunction
ForEachGroupFunction
GeneralComparisonSA
Index
IndexedClosure
IndexedSequence
OptimizerSA
SequenceExchanger
SequenceExchanger.Consumer
SequenceExchanger.EvaluationThread
SequenceExchanger.Producer
SequenceExchanger.SequencePusher
SequentialCopy
StringMirrorExpression
SubtreeCopyWatch
Try
WatchManager
XQueryErrorListener
XSLTErrorListener