Regular expressions

[zoidberg]

hello,

so i have made a user input form and done a lot of custom regular expressions for inputs like uk telephone number, uk postcode and credit card number but now i want to make a regular expression to gaurd against malicious code and SQL injections.  I have come up with a code but i dont know how to make the <mx:RegExp> to make sure if the user matches the expression the data is not accepted instead of only allowing the data if it matches!!

so basically, i'm trying to say the expression is NOT allowed instead of allowed

cheers

[flexy]

Using AS, you can define a function that returns either true or false surely?

Code:

       private function validateEmail(str:String):Boolean {
            var pattern:RegExp = /(\w|[_.\-])+@((\w|-)+\.)+\w{2,4}+/;
            var result:Object = pattern.exec(str);
            if(result == null) {
                return false;
            }
            return true;
        }