fri.patterns.interpreter.parsergenerator.examples
Class Calculator

java.lang.Object
  |
  +--fri.patterns.interpreter.parsergenerator.semantics.ReflectSemantic
        |
        +--fri.patterns.interpreter.parsergenerator.examples.Calculator

All Implemented Interfaces:

Semantic

public class Calculator

extends ReflectSemantic

Calculator for arithmetic expressions, showing the elegance of ReflectSemantic.

Syntax: java fri.patterns.interpreter.parsergenerator.examples.Calculator '(4+2.3) *(2 - -6) + 3*2'

Author:

Fritz Ritzberger

Constructor Summary

Calculator()

Method Summary

java.lang.Object	EXPRESSION(java.lang.Object TERM)
java.lang.Object	EXPRESSION(java.lang.Object EXPRESSION, java.lang.Object operator, java.lang.Object TERM)
java.lang.Object	FACTOR(java.lang.Object number)
java.lang.Object	FACTOR(java.lang.Object minus, java.lang.Object FACTOR)
java.lang.Object	FACTOR(java.lang.Object leftParenthesis, java.lang.Object EXPRESSION, java.lang.Object rightParenthesis)
static void	main(java.lang.String[] args) SYNTAX: java fri.patterns.interpreter.parsergenerator.examples.Calculator '(4+2.3) *(2 - -6) + 3*2' ... 56.4.
java.lang.Object	TERM(java.lang.Object FACTOR)
java.lang.Object	TERM(java.lang.Object TERM, java.lang.Object operator, java.lang.Object FACTOR)

Methods inherited from class fri.patterns.interpreter.parsergenerator.semantics.ReflectSemantic

doSemantic, fallback, getRanges

Methods inherited from class java.lang.Object

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

Constructor Detail

Calculator

public Calculator()

Method Detail

EXPRESSION

public java.lang.Object EXPRESSION(java.lang.Object TERM)

EXPRESSION

public java.lang.Object EXPRESSION(java.lang.Object EXPRESSION,
                                   java.lang.Object operator,
                                   java.lang.Object TERM)

TERM

public java.lang.Object TERM(java.lang.Object FACTOR)

TERM

public java.lang.Object TERM(java.lang.Object TERM,
                             java.lang.Object operator,
                             java.lang.Object FACTOR)

FACTOR

public java.lang.Object FACTOR(java.lang.Object number)

FACTOR

public java.lang.Object FACTOR(java.lang.Object minus,
                               java.lang.Object FACTOR)

FACTOR

public java.lang.Object FACTOR(java.lang.Object leftParenthesis,
                               java.lang.Object EXPRESSION,
                               java.lang.Object rightParenthesis)

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

SYNTAX: java fri.patterns.interpreter.parsergenerator.examples.Calculator '(4+2.3) *(2 - -6) + 3*2' ... 56.4.

java.lang.Exception