aima.core.logic.common

Class Token

java.lang.Object

aima.core.logic.common.Token

public class Token
extends java.lang.Object

A token generated by a lexer from a sequence of characters.

Author:

Ravi Mohan, Ciaran O'Reilly, Mike Stampone

Constructor Summary

Constructors

Constructor and Description
Token(int type, java.lang.String text, int startCharPositionInInput) Constructs a token from the specified token-name and attribute-value

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
int	getStartCharPositionInInput()
java.lang.String	getText() Returns the attribute-value of this token.
int	getType() Returns the token-name of this token.
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Token

public Token(int type,
             java.lang.String text,
             int startCharPositionInInput)

Constructs a token from the specified token-name and attribute-value

Parameters:

type - the token-name

text - the attribute-value

startCharPositionInInput - the position (starting from 0) at which this token starts in the input.

Method Detail

getText

public java.lang.String getText()

Returns the attribute-value of this token.

Returns:

the attribute-value of this token.

getType

public int getType()

Returns the token-name of this token.

Returns:

the token-name of this token.

getStartCharPositionInInput

public int getStartCharPositionInInput()

Returns:

the position (starting from 0) at which this token starts in the input.

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object