(Swift 2) Methods for Getting Attributes

Demonstrates some methods for getting attribute name/values.

The input XML, available at http://www.chilkatsoft.com/data/car.xml, is this:

<root>
    <car color="black" make="mercedes" model="C350" hp="302" engine="v6" type="sedan">Mercedes Benz C350</car>
</root>

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func chilkatTest() {
    let xml = CkoXml()
    var carNode: CkoXml?
    var numAttr: Int
    var horsepower: Int
    var i: Int

    var success: Bool
    // The sample input XML is available at http://www.chilkatsoft.com/data/car.xml
    success = xml.LoadXmlFile("car.xml")
    if success != true {
        print("\(xml.LastErrorText)")
        return
    }

    // Navigate to the "car" node, which is the 1st child:
    carNode = xml.FirstChild()

    // Get the value of the "model" attribute:
    print("model = \(carNode!.GetAttrValue("model"))")

    // Get the value of the "hp" attribute as an integer:
    horsepower = carNode!.GetAttrValueInt("hp").intValue
    print("horsepower = \(horsepower)")

    // Iterate over the attributes and show the name/value of each:
    numAttr = carNode!.NumAttributes.intValue

    i = 0
    while i < numAttr {
        print("\(carNode!.GetAttributeName(i)): \(carNode!.GetAttributeValue(i))")
        i = i + 1
    }

    carNode = nil

}