at.dms.compiler.antlr.runtime
Class TokenBuffer

java.lang.Object
  at.dms.compiler.antlr.runtime.TokenBuffer

public class TokenBuffer
extends Object

Field Summary

protected TokenStream

input

Constructor Summary

TokenBuffer(TokenStream input_)
Create a token buffer

Method Summary

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	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

Constructor Detail

TokenBuffer

public TokenBuffer(TokenStream input_)

Create a token buffer

Method Detail

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()