Simple config parser

public abstract class parseType : Object {
    public string label { get; protected construct; }
    public bool haveData { get; protected set; default=false; }
    public abstract bool parse(string data);
}

public class parseInt : parseType {
    public parseInt(string newLabel) {
        Object(label: newLabel);
    }
    public int value { get; private set; default = 0; }

    public override bool parse(string data) {
        value = int.parse(data);
        haveData = true;
        return true;    // Data is good
    }
}

public class parseString : parseType {
    public parseString(string newLabel) {
        Object(label: newLabel);
    }
    public string value { get; private set; default = ""; }

    public override bool parse(string data) {
        value = data;
        haveData = true;
        return true;
    }
}


int
main(string[] args) {

    parseInt pi = new parseInt("retries");
    parseString ps = new parseString("interfaces");

    parseType[] parseTable = { pi, ps };

    string data = "retries 23";

    foreach (parseType p in parseTable) {
        if (p.label == data[0:p.label.length]) {
            p.parse(data[p.label.length+1:data.length]);
        }
    }

    if (pi.haveData) { stdout.printf("%s is %d\n", pi.label, pi.value); }
    if (ps.haveData) { stdout.printf("%s is %s\n", ps.label, ps.value); }

    return 0;
}