antlr

Class CharQueue

public class CharQueue extends Object

A circular buffer object used by CharBuffer

Field Summary
protected char[]	buffer Physical circular buffer of tokens
protected int	nbrEntries number of tokens in the queue

Constructor Summary
	CharQueue(int minSize)

Method Summary
void	append(char tok) Add token to end of the queue
char	elementAt(int idx) Fetch a token from the queue by index
void	init(int size) Initialize the queue.
void	removeFirst() Remove char from front of queue
void	reset() Clear the queue.

Field Detail

protected char[] buffer

Physical circular buffer of tokens

protected int nbrEntries

number of tokens in the queue

public CharQueue(int minSize)

public final void append(char tok)

Add token to end of the queue

Parameters: tok The token to add

public final char elementAt(int idx)

Fetch a token from the queue by index

Parameters: idx The index of the token to fetch, where zero is the token at the front of the queue

public void init(int size)

Initialize the queue.

Parameters: size The initial size of the queue

public final void removeFirst()

Remove char from front of queue

public final void reset()

Clear the queue. Leaving the previous buffer alone.