return Token.UNDEFINED;
return fDefaultToken;
		public IToken evaluate(ICharacterScanner scanner) {			IToken token= super.evaluate(scanner);			if (fEnable) {				if (fCurrentVersion.equals(fVersion))					return token;									return Token.UNDEFINED;			} else {				if (fCurrentVersion.equals(fVersion))					return Token.UNDEFINED;									return token;			}		}