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## org.lsmp.djep.xjep
Interface CommandVisitorI

All Known Implementing Classes:
  Define, Diff, Eval, XAssign

    public interface CommandVisitorI

Interface defining the special actions performed during the preprocess stage. This interface should be implemented by PostFixMath Commands which wish to perform a special action during the XJep.preprocess() method.

Method Summary
`Node` | `process(Node node, Node[] children, XJep xjep)` Performs the specified action on an expression tree.

Method Detail

### process

    Node process(Node node,
                 Node[] children,
                 XJep xjep)
                 throws ParseException

  Performs the specified action on an expression tree.

  Parameters:
    `node` - top node of the tree
    `children` - the children of the node after they have been preprocessed.
    `xjep` - a reference to the current XJep interface.
  Returns:
    top node of the results.
  Throws:
    `ParseException`

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