# Package com.saxonica.xsltextn.instruct

This package contains implementations of XSLT extension instructions available in Saxon-PE and Saxon-EE. The classes in this package contain the instruction/expression objects held on the expression tree, including the code for executing the instructions at run-time.

- Class Summary
  Class | Description
  --- | ---
  Assign | Compiled instruction deriving from saxon:assign element in stylesheet.
  DeepUpdate | Handler for saxon:deep-update elements in stylesheet.
  DoInstr | Compiled instruction deriving from saxon:do element in stylesheet.
  TabulateMaps | Handler for a saxon:tabulate-maps instruction in an XSLT stylesheet.
  While | Handler for saxon:while elements in stylesheet.