         return _value > 0
     }
     
+    public func reset() {
+        _value = 0
+    }
+    
     override func setValue(values: [String]) -> Bool {
         _value += 1
         return true

     * - parameter options: An array containing the options to add.
     */
    public func addOptions(options: [Option]) {
        _options += options
    }
    
    /**

        return false
    }
}

internal extension String {
    /* Retrieves locale-specified decimal separator from the environment
