org.lsmp.djep.djep
Class DPrintVisitor

java.lang.Object
  org.lsmp.djep.xjep.DoNothingVisitor
      org.lsmp.djep.xjep.ErrorCatchingVisitor
          org.lsmp.djep.xjep.PrintVisitor
              org.lsmp.djep.djep.DPrintVisitor

All Implemented Interfaces:

ParserVisitor

public class DPrintVisitor
extends PrintVisitor

An extension of PrintVisitor which will print the equations of a variable if required. The behaviours of this class is determined by two modes PRINT_PARTIAL_EQNS and PRINT_VARIABLE_EQNS. When a variable or partial derivative is encountered then its equation may be printed. By default equations for PartialDerivatives are printed but equations for normal derivatives are not. TODO might want to print eqn for y=sin(x) but not x=3

Author:

Rich Morris Created on 26-Feb-2004

Nested Class Summary

Nested classes/interfaces inherited from class org.lsmp.djep.xjep.PrintVisitor

PrintVisitor.PrintRulesI

Field Summary

static int	PRINT_PARTIAL_EQNS
static int	PRINT_VARIABLE_EQNS

Fields inherited from class org.lsmp.djep.xjep.PrintVisitor

COMPLEX_I, format, FULL_BRACKET, mode, sb

Constructor Summary

DPrintVisitor()

Method Summary

Object

visit(ASTVarNode node, Object data) Prints the variable or its equation.

Methods inherited from class org.lsmp.djep.xjep.PrintVisitor

addSpecialRule, append, formatValue, formatValue, getMaxLen, getMode, getMode, print, print, println, println, setMaxLen, setMode, setNumberFormat, toString, visit, visit

Methods inherited from class org.lsmp.djep.xjep.ErrorCatchingVisitor

acceptCatchingErrors, addError, clearErrors, getError, getErrorsMessage, hasErrors

Methods inherited from class org.lsmp.djep.xjep.DoNothingVisitor

acceptChildrenAsArray, visit, visit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PRINT_PARTIAL_EQNS

public static final int PRINT_PARTIAL_EQNS

See Also:

Constant Field Values

PRINT_VARIABLE_EQNS

public static final int PRINT_VARIABLE_EQNS

See Also:

Constant Field Values

Constructor Detail

DPrintVisitor

public DPrintVisitor()

Method Detail

visit

public Object visit(ASTVarNode node,
                    Object data)
             throws ParseException

Prints the variable or its equation. Depends on the state of the flags and whether the variable has an equation.

Specified by:

visit in interface ParserVisitor

Overrides:

visit in class PrintVisitor

Throws:

ParseException