CSL_Test__1.TorrentBuilder.YearHelper C# (CSharp) Method

        private string YearHelper(string filename)
        {
            Match match = Regex.Match(filename, "[1-2]{1}[09][0-9][0-9]");
            while (match.Success)
            {
                int year = int.Parse(match.Value);
                if (year > 1950 && year < (DateTime.Today.Year + 1))
                    return year.ToString();
                else
                    match = match.NextMatch();
            }

            return null;
        }