Xml in ActionScript

Here’s the translation of the XML example from Go to ActionScript, formatted in Markdown suitable for Hugo:

// ActionScript offers XML support through the built-in E4X (ECMAScript for XML) feature

// Plant will be mapped to XML. We use metadata tags to specify XML attributes and element names
[XmlClass(alias="plant")]
public class Plant {
    [XmlAttribute(name="id")]
    public var id:int;
    
    public var name:String;
    
    [XmlArrayItem(elementName="origin")]
    public var origin:Array;
    
    public function toString():String {
        return "Plant id=" + id + ", name=" + name + ", origin=" + origin;
    }
}

public function main():void {
    var coffee:Plant = new Plant();
    coffee.id = 27;
    coffee.name = "Coffee";
    coffee.origin = ["Ethiopia", "Brazil"];

    // Emit XML representing our plant
    var xml:XML = new XML(coffee);
    trace(xml.toXMLString());

    // To add a generic XML header to the output, prepend it explicitly
    trace("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + xml.toXMLString());

    // Use XML constructor to parse a string with XML into a data structure
    var xmlString:String = xml.toXMLString();
    var parsedXML:XML = new XML(xmlString);
    var p:Plant = new Plant();
    p.id = parsedXML.@id;
    p.name = parsedXML.name;
    p.origin = parsedXML.origin.text();
    trace(p);

    var tomato:Plant = new Plant();
    tomato.id = 81;
    tomato.name = "Tomato";
    tomato.origin = ["Mexico", "California"];

    // In ActionScript, we can use E4X to create nested XML structures
    var nesting:XML = 
        <nesting>
            <parent>
                <child>
                    {new XML(coffee)}
                    {new XML(tomato)}
                </child>
            </parent>
        </nesting>;

    trace(nesting.toXMLString());
}

main();

This ActionScript code demonstrates XML handling capabilities similar to the original example. Here are some key points:

ActionScript uses E4X (ECMAScript for XML) for XML manipulation, which provides a more intuitive syntax for working with XML.
We use metadata tags like [XmlClass], [XmlAttribute], and [XmlArrayItem] to specify how class properties should be serialized to XML.
The XML class in ActionScript is used to create and parse XML data.
Instead of explicit marshaling and unmarshaling methods, ActionScript allows direct conversion between objects and XML using the XML constructor.
E4X allows for easy creation of nested XML structures using XML literals.
The toXMLString() method is used to convert XML objects to formatted strings.
ActionScript doesn’t have built-in indentation for XML output, so the output won’t be as nicely formatted as in the original example without additional processing.

When you run this code, it will output the XML representations of the plant objects and the nested structure, similar to the original example. Note that the exact output format might differ slightly due to the differences in XML handling between Go and ActionScript.

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