slogo.parser

Class DifferenceParser

java.lang.Object

slogo.parser.DifferenceParser

All Implemented Interfaces:

Parser

public class DifferenceParser
extends java.lang.Object
implements Parser

Parse a DIFFERENCE Statement, which looks like DIFFERENCE num1 num2

Constructor Summary

Constructors

Constructor and Description
DifferenceParser() DifferenceParser Constructor

Method Summary

Modifier and Type	Method and Description
GrammarElement	parse(SLogoInterpreter interpreter) Parses a DIFFERENCE instruction

Methods inherited from class java.lang.Object

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

Constructor Detail

DifferenceParser

public DifferenceParser()

DifferenceParser Constructor

Method Detail

parse

public GrammarElement parse(SLogoInterpreter interpreter)

Parses a DIFFERENCE instruction

Specified by:

parse in interface Parser

Parameters:

interpreter - is a SLogoInterperter used to interpret the code

Returns:

a Subtraction(num1, num2) instruction call to properly handle the instruction