TokenBuffer (antlr Javadoc)

java.lang.Object
- antlr.TokenBuffer

public class TokenBuffer
extends java.lang.Object

Field Summary

Fields
Modifier and Type	Field	Description
`protected TokenStream`	`input`
`(package private) int`	`markerOffset`
`(package private) int`	`nMarkers`
`(package private) int`	`numToConsume`
`(package private) TokenQueue`	`queue`

Constructor Summary

Constructors
Constructor Description

TokenBuffer(TokenStream input_)
Create a token buffer

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`consume()`	Mark another token for deferred consumption
`TokenStream`	`getInput()`	return the Tokenizer (needed by ParseView)
`int`	`LA(int i)`	Get a lookahead token value
`Token`	`LT(int i)`	Get a lookahead token
`int`	`mark()`	Return an integer marker that can be used to rewind the buffer to its current state.
`void`	`reset()`	Reset the input buffer to empty state
`void`	`rewind(int mark)`	Rewind the token buffer to a marker.

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

- Field Detail
  - input
```
protected TokenStream input
```
  - nMarkers
```
int nMarkers
```
  - markerOffset
```
int markerOffset
```
  - numToConsume
```
int numToConsume
```
  - queue
```
TokenQueue queue
```
- Constructor Detail
  - TokenBuffer
```
public TokenBuffer(TokenStream input_)
```
    Create a token buffer
- Method Detail
  - reset
```
public final void reset()
```
    Reset the input buffer to empty state
  - consume
```
public final void consume()
```
    Mark another token for deferred consumption
  - getInput
```
public TokenStream getInput()
```
    return the Tokenizer (needed by ParseView)
  - LA
```
public final int LA(int i)
             throws TokenStreamException
```
    Get a lookahead token value
    
    Throws:
    
    TokenStreamException
  - LT
```
public final Token LT(int i)
               throws TokenStreamException
```
    Get a lookahead token
    
    Throws:
    
    TokenStreamException
  - mark
```
public final int mark()
```
    Return an integer marker that can be used to rewind the buffer to its current state.
  - rewind
```
public final void rewind(int mark)
```
    Rewind the token buffer to a marker.
    
    Parameters:
    
    mark - Marker returned previously from mark()