CommandVisitorI (Jep with extensions API )

All Known Implementing Classes:

Clean, Coeffs, Compare, Diff, Eval, Expand, ExtractEqn, Simplify, Subst, SymbolicEquals, 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
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  Node process(Node node, Node[] children)
  Performs the specified action on an expression tree.

- Method Detail
  - process
```
Node process(Node node,
             Node[] children)
      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.
    
    Returns:
    
    top node of the results.
    
    Throws:
    
    ParseException