Manos.Tool.Driver.ParseGlobalOptions C# (CSharp) Method

        private static string[] ParseGlobalOptions(string [] args)
        {
            var p = new OptionSet () {
                { "-data-dir=", v => Environment.DataDirectory = v },
                { "-out|out=", v => SetOutput (v) },
            };

            List<string> extra = null;
            try {
                extra = p.Parse(args);
            } catch (OptionException){
                Console.WriteLine ("Try `manos --help' for more information.");
                return null;
            }

            if (extra == null)
                return null;

            return extra.ToArray ();
        }