sjm.parse.tokens
Class WhitespaceState

java.lang.Object
  |
  +--sjm.parse.tokens.TokenizerState
        |
        +--sjm.parse.tokens.WhitespaceState

public class WhitespaceState

extends TokenizerState

A whitespace state ignores whitespace (such as blanks and tabs), and returns the tokenizer's next token. By default, all characters from 0 to 32 are whitespace.

Version:

1.0

Author:

Steven J. Metsker

Field Summary

protected boolean[]

whitespaceChar

Constructor Summary

WhitespaceState()
Constructs a whitespace state with a default idea of what characters are, in fact, whitespace.

Method Summary

Token	nextToken(java.io.PushbackReader r, int aWhitespaceChar, Tokenizer t) Ignore whitespace (such as blanks and tabs), and return the tokenizer's next token.
void	setWhitespaceChars(int from, int to, boolean b) Establish the given characters as whitespace to ignore.

Methods inherited from class java.lang.Object

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

Field Detail

whitespaceChar

protected boolean[] whitespaceChar

Constructor Detail

WhitespaceState

public WhitespaceState()

Constructs a whitespace state with a default idea of what characters are, in fact, whitespace.

Method Detail

nextToken

public Token nextToken(java.io.PushbackReader r,
                       int aWhitespaceChar,
                       Tokenizer t)
                throws java.io.IOException

Ignore whitespace (such as blanks and tabs), and return the tokenizer's next token.

Overrides:

nextToken in class TokenizerState

Returns:

the tokenizer's next token

setWhitespaceChars

public void setWhitespaceChars(int from,
                               int to,
                               boolean b)

Establish the given characters as whitespace to ignore.

Parameters:

first - char

second - char

boolean - true, if this state should ignore characters in the given range