Regular Expressions in AX

static boolean ValidateEmailAddress(str _email)
{
boolean retval;
InteropPermission permission = new InteropPermission(InteropKind::ClrInterop);
System.Text.RegularExpressions.Regex re;
;
permission.assert();
re = new System.Text.RegularExpressions.Regex(
"^([a-zA-Z0-9_'+*$%\^&!\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9:]{2,4})+$"
);
return CLRInterop::getAnyTypeForObject(re.IsMatch(_email));