aima.logic.common
Class Parser

java.lang.Object
  aima.logic.common.Parser

Direct Known Subclasses:

PEParser

public abstract class Parser
extends java.lang.Object

Field Summary

protected Lexer	lexer
protected int	lookAhead
protected Token[]	lookAheadBuffer

Constructor Summary

Parser()

Method Summary

protected void	consume()
protected void	fillLookAheadBuffer()
protected boolean	isEndOfInput(Token t)
protected void	loadNextTokenFromInput()
protected Token	lookAhead(int i)
protected void	match(java.lang.String terminalSymbol)
abstract ParseTreeNode	parse(java.lang.String input)

Methods inherited from class java.lang.Object

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

Field Detail

lexer

protected Lexer lexer

lookAheadBuffer

protected Token[] lookAheadBuffer

lookAhead

protected int lookAhead

Constructor Detail

Parser

public Parser()

Method Detail

fillLookAheadBuffer

protected void fillLookAheadBuffer()

lookAhead

protected Token lookAhead(int i)

consume

protected void consume()

loadNextTokenFromInput

protected void loadNextTokenFromInput()

isEndOfInput

protected boolean isEndOfInput(Token t)

match

protected void match(java.lang.String terminalSymbol)

parse

public abstract ParseTreeNode parse(java.lang.String input)