วิธีการใช้ regular expression เพื่อ parse ไฟล์ข้อความใน C#

                 string line;
                int count = 0;
                Regex regex = new Regex("[0-9e+-.]+");
                while (count < maxLines && (line = tr.ReadLine()) != null)
                {
                    int type = -1;
                    List<double> values = new List<double>();
                    MatchCollection matches = regex.Matches(line);
                    foreach (Match m in matches)
                    {
                        double d = double.Parse(m.Groups[0].Value);
                        if (type == -1) type = (int)d;
                        else values.Add(d);
                    }
                    count++;

                    Entry e = new Entry()
                    {
                        Type = type,
                        Data = values.ToArray()
                    };

                    list.Add(e);
                }