CharQueue (antlr Javadoc)

java.lang.Object
- antlr.CharQueue

public class CharQueue
extends java.lang.Object

A circular buffer object used by CharBuffer

Field Summary

Fields
Modifier and Type Field Description

protected char[] buffer
Physical circular buffer of tokens

protected int nbrEntries
number of tokens in the queue

Constructor Summary

Constructors
Constructor Description

CharQueue(int minSize)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - buffer
```
protected char[] buffer
```
    Physical circular buffer of tokens
  - nbrEntries
```
protected int nbrEntries
```
    number of tokens in the queue
- Constructor Detail
  - CharQueue
```
public CharQueue(int minSize)
```
- Method Detail
  - append
```
public final void append(char tok)
```
    Add token to end of the queue
    
    Parameters:
    
    tok - The token to add
  - elementAt
```
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
  - init
```
public void init(int size)
```
    Initialize the queue.
    
    Parameters:
    
    size - The initial size of the queue
  - reset
```
public final void reset()
```
    Clear the queue. Leaving the previous buffer alone.
  - removeFirst
```
public final void removeFirst()
```
    Remove char from front of queue