net.sourceforge.chaperon.model.lexicon
Class Lexeme

java.lang.Object
  net.sourceforge.chaperon.model.lexicon.Lexeme

public class Lexeme
extends java.lang.Object

This class represents a lexeme within a lexicon. The lexeme associates a terminal symbol to a pattern.

Version:

CVS $Id: Lexeme.java,v 1.4 2003/12/09 19:55:52 benedikta Exp $

Author:

Stephan Michels

Constructor Summary

Lexeme()
Create a lexeme.

Lexeme(Symbol symbol)
Create a lexeme.

Method Summary

java.lang.Object	clone() Creates a clone of this lexeme.
Pattern	getDefinition() Return the definition.
java.lang.String	getLocation() Returns the location from the input source.
Symbol	getSymbol() Return the symbol for this lexeme.
void	setDefinition(Pattern definition) Set a pattern as definition for this lexeme.
void	setLocation(java.lang.String location) Set the location from the input source.
void	setSymbol(Symbol symbol) Set the terminal symbol for this lexeme.
java.lang.String	toString() Return a string representation of the lexeme.
Violations	validate() Validate the lexeme.

Methods inherited from class java.lang.Object

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

Constructor Detail

Lexeme

public Lexeme()

Create a lexeme.

Lexeme

public Lexeme(Symbol symbol)

Create a lexeme.

Parameters:

symbol - Terminal symbol for this lexeme.

Method Detail

setSymbol

public void setSymbol(Symbol symbol)

Set the terminal symbol for this lexeme.

Parameters:

symbol - Terminal symbol.

getSymbol

public Symbol getSymbol()

Return the symbol for this lexeme.

Returns:

Terminal symbol.

setDefinition

public void setDefinition(Pattern definition)

Set a pattern as definition for this lexeme.

Parameters:

definition - Definition of the lexeme.

getDefinition

public Pattern getDefinition()

Return the definition.

Returns:

Definition of the lexeme.

setLocation

public void setLocation(java.lang.String location)

Set the location from the input source.

Parameters:

location - Location in the input source.

getLocation

public java.lang.String getLocation()

Returns the location from the input source.

Returns:

Location in the input source.

validate

public Violations validate()

Validate the lexeme.

Returns:

Return a list of violations, if this object isn't valid.

toString

public java.lang.String toString()

Return a string representation of the lexeme.

Overrides:

toString in class java.lang.Object

Returns:

String representation.

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Creates a clone of this lexeme.

Overrides:

clone in class java.lang.Object

Returns:

Clone of this lexeme.

Throws:

java.lang.CloneNotSupportedException - If an exception occurs during the cloning.