ICS3U1 Unit 2 Activity 1: Question 4

// Date Completed: July 18, 2017
// Purpose: Validating a Canadian Postal Code

// This line makes the button, btnValidate wait for a mouse click
// When the button is clicked, the determineValidity function is called
btnValidate.addEventListener(MouseEvent.CLICK, determineValidity);

// This line makes the textinputs: txtinOrigin wait for a mouse click
// When a textinput is clicked, the clearLabel 1 functions are called
txtinOrigin.addEventListener(MouseEvent.CLICK, clearLabel1);

// This is the determineValidity function
// e:MouseEvent is the click event experienced by the button
// void indicates that the function does not return a value
function determineValidity(e:MouseEvent):void
{

    // Declare the variables
    var Origin:String;

    //Declare the value of the Origin
    Origin = String(txtinOrigin.text);

    //Get Unicode values for capital A, Z, and assign the value to Space
    var Values:String = "AZ 09";
    var Value1:Number = Values.charCodeAt(0);
    var Value2:Number = Values.charCodeAt(1);
    var Value3:Number = Values.charCodeAt(2);
    var Value4:Number = Values.charCodeAt(3);
    var Value5:Number = Values.charCodeAt(4);

    // Determining validity of postal code
    // If the characters do not match to the Unicode value and they are invalid
    if (Origin.charCodeAt(0) < Value1 || Origin.charCodeAt(0) > Value2)
    {
        lblResult.text = "Not a valid postal code." + "\r" +"The first character is incorrect.";
    }

    else if (Origin.length < 4)
    {
        lblResult.text = "Insufficient characters" + "\r" + "A postal code consists of six alphanumeric characters and a space between the first and last three characters." + "\r" + "e.g. H0H 0H0";
    }

    else if (Origin.charCodeAt(1) < Value4 || Origin.charCodeAt (1) > Value5)
    {
        lblResult.text = "Not a valid postal code." + "\r" + "The second character is incorrect.";
    }

    else if (Origin.charCodeAt(2) < Value1 || Origin.charCodeAt(2) > Value2)
    {
        lblResult.text = "Not a valid postal code." + "\r" + "The third character is incorrect.";
    }

    else if (Origin.charCodeAt(3) != Value3 )
    {
        lblResult.text = "Not a valid postal code." + "\r" + "The fourth character is incorrect." + "\r" + "There must be a space between the first three and last three characters of your postal code. ";
    }

    else if (Origin.charCodeAt(4) < Value4 || Origin.charCodeAt (4) > Value5)
    {
        lblResult.text = "Not a valid postal code." + "\r" + "The fifth character is incorrec.t";
    }

    else if (Origin.charCodeAt(5) < Value1 || Origin.charCodeAt(5) > Value2)
    {
        lblResult.text = "Not a valid postal code." + "\r"+ "The sixth character is incorrect.";
    }

    else if (Origin.charCodeAt(6) < Value4 || Origin.charCodeAt (6) > Value5)
    {
        lblResult.text = "Not a valid postal code." + "\r" + "The seventh character is incorrect.";
    }

    else if (Origin.length < 7)
    {
        lblResult.text = "Insufficient characters" + "\r" + "A postal code consists of six alphanumeric characters and a space between the first and last three characters." + "\r" + "e.g. H0H 0H0";
    }

    else
    {
        lblResult.text = "This is a valid postal code.";
    }

 }

// This is the clearLabel1 function
// e:MouseEvent is the click event experienced by the textinput
// void indicates that the function does not return a value
function clearLabel1(e:MouseEvent):void

{
    lblResult.text = "";
    txtinOrigin.text = "";
}