Flex - IPValidator

package validators
{
import mx.validators.Validator;
import mx.validators.ValidationResult;

public class IPValidator extends Validator {
// Define Array for the return value of doValidation(). private var results:Array;
// Constructor. public function IPValidator() {
// Call base class constructor. super();
}

// Define the doValidation() method. override protected function doValidation(value:Object):Array {
// Clear results Array. results = [];
// Call base class doValidation(). results = super.doValidation(value);
// Return if there are errors. if (results.length > 0)
return results;

if (String(value).length == 0)
return results;

var pattern:RegExp = /\b(25[0-5]|2[0-4][0-9]|[01]?[0-9]
[0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4]
[0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b/;
var r:Array = pattern.exec(String(value));
if (r == null)
{
results.push(new ValidationResult(true, null, "NaN",
"You must enter an IP Address"));
return results;
}
return results;
}
}
}