java_cup.simple_calc
Class scanner

java.lang.Object
  java_cup.simple_calc.scanner

All Implemented Interfaces:

Scanner

public class scanner

extends java.lang.Object

implements Scanner

Field Summary

(package private) java.io.InputStream	instream
protected int	next_char

Constructor Summary

scanner()

scanner(java.io.InputStream is)

Method Summary

protected void	advance()
private void	init()
Symbol	next_token() Return the next token, or null on end-of-file.

Methods inherited from class java.lang.Object

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

Field Detail

instream

final java.io.InputStream instream

next_char

protected int next_char

Constructor Detail

scanner

public scanner(java.io.InputStream is)
        throws java.io.IOException

scanner

public scanner()
        throws java.io.IOException

Method Detail

advance

protected void advance()
                throws java.io.IOException

Throws:

java.io.IOException

init

private void init()
           throws java.io.IOException

Throws:

java.io.IOException

next_token

public Symbol next_token()
                  throws java.io.IOException

Description copied from interface: Scanner

Return the next token, or null on end-of-file.

Specified by:

next_token in interface Scanner

Throws:

java.io.IOException