code: function(args)
      {
        var opts;
        for (var i=0, l=args.length; i<l; i++) {
          if (args[i].indexOf("settings=") == 0) {
            opts = args[i].substr(9);
            break;
          }
          else if (args[i].indexOf("'settings=") == 0) {
            opts = /'settings\=(.*?)'/.exec(args[i])[1];
            break;
          }
        }
        if (opts) {
          opts = opts.replace(/\\\{/g, "{").replace(/\\\}/g, "}");
          opts = qx.lang.Json.parse(opts);
          for (var prop in opts) {
            var value = opts[prop];
            if (typeof value == "string") {
              value = value.replace(/\$$/g, " ");
            }
            try {
              qx.core.Environment.add(prop, value);
            } catch(ex) {
              this.error("Unable to define command-line setting " + prop + ": " + ex);
            }
          }
        }
      }
docs: Converts the value of the "settings" command line option to qx settings.
  
  @param args {String[]} Rhino arguments object