slogo.parser
Class NumericExpressionParser

java.lang.Object
  slogo.parser.NumericExpressionParser

All Implemented Interfaces:

Parser

public class NumericExpressionParser
extends java.lang.Object
implements Parser

Handles parsing numeric values

Author:

Owen Astrachan, Sara Sprenkle

Field Summary

private SLogoParser	myParser
private static NumericExpressionParser	ourInstance

Constructor Summary

private

NumericExpressionParser() Parse expressions from a parser

Method Summary

static NumericExpressionParser	getInstance()
GrammarElement	parse(SLogoParser ep)
protected GrammarElement	parseExpression()

Methods inherited from class java.lang.Object

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

Field Detail

ourInstance

private static NumericExpressionParser ourInstance

myParser

private SLogoParser myParser

Constructor Detail

NumericExpressionParser

private NumericExpressionParser()

Parse expressions from a parser

Method Detail

getInstance

public static NumericExpressionParser getInstance()

parse

public GrammarElement parse(SLogoParser ep)

Specified by:

parse in interface Parser

parseExpression

protected GrammarElement parseExpression()

Returns: