org.nineml.coffeegrinder.tokens

Class TokenEPSILON

java.lang.Object

org.nineml.coffeegrinder.util.Decoratable

org.nineml.coffeegrinder.tokens.Token

org.nineml.coffeegrinder.tokens.TokenEPSILON

public class TokenEPSILON
extends Token

A single character Token.

Field Summary

Fields

Modifier and Type	Field and Description
static TokenEPSILON	EPSILON

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj) Test tokens for equality.
java.lang.String	getValue() Return the string value of this token.
int	hashCode() Assure that equal tokens return the same hash code.
boolean	matches(Token input) Does this token match the input?
java.lang.String	toString() Pretty print a token.

Methods inherited from class org.nineml.coffeegrinder.util.Decoratable

addAttribute, addAttributes, getAttribute, getAttributes, getAttributesMap, getAttributeValue, hasAttribute

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

EPSILON

public static final TokenEPSILON EPSILON

Method Detail

getValue

public java.lang.String getValue()

Return the string value of this token.

Specified by:

getValue in class Token

Returns:

The string value of the token ("<EOF>").

matches

public boolean matches(Token input)

Does this token match the input?

This token matches other token characters that have the same character as well as TokenStrings that are one character long and contain the same character.

Specified by:

matches in class Token

Parameters:

input - The input.

Returns:

true if they match.

equals

public boolean equals(java.lang.Object obj)

Test tokens for equality.

Two tokens are equal if they represent the same character.

Overrides:

equals in class java.lang.Object

Parameters:

obj - An object.

Returns:

true if obj is equal to this terminal character.

hashCode

public int hashCode()

Assure that equal tokens return the same hash code.

Overrides:

hashCode in class java.lang.Object

Returns:

the hash code.

toString

public java.lang.String toString()

Pretty print a token.

Overrides:

toString in class java.lang.Object

Returns:

a string representation of the object.