oursland.lisp
Class LispTokenizer

java.lang.Object
  oursland.parse.BaseTokenizer
      oursland.lisp.LispTokenizer

public class LispTokenizer
extends BaseTokenizer

Parses Lisp tokens. Not complete according to Lisp spec. This tokenizer is expanded as I need features.

Author:

oursland

Field Summary

private java.util.LinkedList<java.lang.String>

nextTokens

Constructor Summary

LispTokenizer(java.io.InputStream in)

LispTokenizer(java.lang.String str)

Method Summary

private void	consumeWhitespace()
java.lang.String	expect(java.lang.String expect)
boolean	hasNextToken()
private static boolean	isFraction(java.lang.String number)
static void	main(java.lang.String[] args)
java.lang.String	nextToken()
static double	parseNumberToDouble(java.lang.String number)
private java.lang.String	parseString()
private java.lang.String	parseSymbol()
private java.lang.String	parseToken()
java.lang.String	peekToken(int i)

Methods inherited from class oursland.parse.BaseTokenizer

consume, peek, peekNoEOF

Methods inherited from class java.lang.Object

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

Field Detail

nextTokens

private java.util.LinkedList<java.lang.String> nextTokens

Constructor Detail

LispTokenizer

public LispTokenizer(java.io.InputStream in)

LispTokenizer

public LispTokenizer(java.lang.String str)

Method Detail

hasNextToken

public boolean hasNextToken()

Specified by:

hasNextToken in class BaseTokenizer

peekToken

public java.lang.String peekToken(int i)
                           throws java.io.IOException

Throws:

java.io.IOException

nextToken

public java.lang.String nextToken()
                           throws java.io.IOException

Specified by:

nextToken in class BaseTokenizer

Throws:

java.io.IOException

parseToken

private java.lang.String parseToken()
                             throws java.io.IOException

Throws:

java.io.IOException

parseString

private java.lang.String parseString()
                              throws java.io.IOException

Throws:

java.io.IOException

parseSymbol

private java.lang.String parseSymbol()
                              throws java.io.IOException

Throws:

java.io.IOException

consumeWhitespace

private void consumeWhitespace()
                        throws java.io.IOException

Throws:

java.io.IOException

main

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

expect

public java.lang.String expect(java.lang.String expect)
                        throws java.io.IOException

Throws:

java.io.IOException

parseNumberToDouble

public static double parseNumberToDouble(java.lang.String number)

isFraction

private static boolean isFraction(java.lang.String number)