(Swift 3,4,5...) Update an XML Attribute

Demonstrates how to update XML attributes.

The output XML is this:

<abc b="pear" c="orange" a="130">Test</abc>

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    let xml = CkoXml()!

    var success: Bool = xml.load("<abc a=\"123\" b=\"apple\">Test</abc>")

    // The UpdateAttribute and AddOrUpdateAttribute methods
    // are identical.  Both will replace the attribute's value if it
    // already exists, or insert a new attribute if it does not yet exist.

    // Change the value of attribute "b" to "pear".
    success = xml.updateAttribute("b", attrValue: "pear")

    // Because no attribute named "c" exists, UpdateAttribute
    // will create it:
    success = xml.updateAttribute("c", attrValue: "orange")

    // If an attribute's value is an integer, the AddToAttribute
    // method may be called to update it by adding an integer value.
    // For example, update the value of "a" to "130" by adding 7.
    xml.add(toAttribute: "a", amount: 7)

    // Examine the result:
    print("\(xml.getXml()!)")

}