jmathlib.core.interpreter
Class Interpreter

java.lang.Object
  jmathlib.core.interpreter.Interpreter

public class Interpreter
extends java.lang.Object

This is the main interface for the program. Any interface to the MathLib program would access it through the functions exposed by this class.

Field Summary

GlobalValues	globals global pointers and values
boolean	throwErrorsB for testing purposes additional throwing of errors can be enables

Constructor Summary

Interpreter(boolean _runningStandalone)
Constructs the interpreter and sets the constants

Method Summary

void	displayText(java.lang.String text) displays a string to the outputPanel
java.lang.String	executeExpression(java.lang.String expression) execute a single line.
boolean[][]	getArrayValueBoolean(java.lang.String name)
double[][]	getArrayValueIm(java.lang.String name) get the imaginary values of a an array
double[][]	getArrayValueRe(java.lang.String name) get the real values of a an array
JMathLibOutput	getOutputPanel() returns the panel to write any text to
java.lang.String	getResult() Return the result of the last calculation
boolean	getScalarValueBoolean(java.lang.String name)
double	getScalarValueIm(java.lang.String name) get the imaginary part of a scalar variable
double	getScalarValueRe(java.lang.String name) get the real part of a scalar variable
java.lang.String	getString(java.lang.String name) Return the result of the last calculation
void	save() saves the variable list
void	setArray(java.lang.String name, double[][] valueRe, double[][] valueIm) Store an array variable in jmathlib's workspace
void	setOutputPanel(JMathLibOutput _outputPanel) sets the panel to write any text to
void	setScalar(java.lang.String name, double valueRe, double valueIm) store a scalar variable in jmathlib's workspace
void	setStatusText(java.lang.String _status) write status message to GUI

Methods inherited from class java.lang.Object

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

Field Detail

globals

public GlobalValues globals

global pointers and values

throwErrorsB

public boolean throwErrorsB

for testing purposes additional throwing of errors can be enables

Constructor Detail

Interpreter

public Interpreter(boolean _runningStandalone)

Constructs the interpreter and sets the constants

Parameters:

_runningStandalone - = true if this is being used from an application

Method Detail

setOutputPanel

public void setOutputPanel(JMathLibOutput _outputPanel)

sets the panel to write any text to

Parameters:

_outputPanel - = the panel to write to, must implement the MathLibOutput interface

getOutputPanel

public JMathLibOutput getOutputPanel()

returns the panel to write any text to

Returns:

outputPanel = the panel to write to

setStatusText

public void setStatusText(java.lang.String _status)

write status message to GUI

Parameters:

_status -

displayText

public void displayText(java.lang.String text)

displays a string to the outputPanel

Parameters:

text - = the text to display

save

public void save()

saves the variable list

executeExpression

public java.lang.String executeExpression(java.lang.String expression)

execute a single line.

Parameters:

expression - = the line to execute

Returns:

the result as a String

getScalarValueRe

public double getScalarValueRe(java.lang.String name)

get the real part of a scalar variable

Parameters:

name - = name of the scalar variable

Returns:

numerical value of the variable

getScalarValueIm

public double getScalarValueIm(java.lang.String name)

get the imaginary part of a scalar variable

Parameters:

name - = name of the scalar variable

Returns:

numerical value of the variable

getScalarValueBoolean

public boolean getScalarValueBoolean(java.lang.String name)

Parameters:

name -

Returns:

getArrayValueRe

public double[][] getArrayValueRe(java.lang.String name)

get the real values of a an array

Parameters:

name - = name of the array

Returns:

numerical value of the array

getArrayValueIm

public double[][] getArrayValueIm(java.lang.String name)

get the imaginary values of a an array

Parameters:

name - = name of the array

Returns:

numerical value of the array

getArrayValueBoolean

public boolean[][] getArrayValueBoolean(java.lang.String name)

Parameters:

name -

Returns:

setScalar

public void setScalar(java.lang.String name,
                      double valueRe,
                      double valueIm)

store a scalar variable in jmathlib's workspace

Parameters:

name - = name of the scalar

valueRe - = real value of the scalar

valueIM - = imaginary value of the scalar

setArray

public void setArray(java.lang.String name,
                     double[][] valueRe,
                     double[][] valueIm)

Store an array variable in jmathlib's workspace

Parameters:

name - = name of the array

valueRe - = real values of the array

valueIM - = imaginary values of the array

getResult

public java.lang.String getResult()

Return the result of the last calculation

Returns:

a string containing the last result

getString

public java.lang.String getString(java.lang.String name)

Return the result of the last calculation

Returns:

a string containing the last result