BF2Statistics.HostsFile.ParseEntries C# (CSharp) Method

        protected void ParseEntries()
        {
            // Parse hosts file lines
            foreach (string line in OrigContents)
            {
                // Dont add empty lines or comments
                string cLine = line.Trim();
                if (String.IsNullOrEmpty(cLine) || cLine[0] == '#')
                    continue;

                // Add line if we have a valid address and hostname
                Match M = Regex.Match(
                    cLine,
                    @"^([\s|\t]+)?(?<address>[a-z0-9\.:]+)[\s|\t]+(?<hostname>[a-z0-9\.\-_\s]+)$",
                    RegexOptions.IgnoreCase
                );

                // Add line
                if (M.Success)
                {
                    string hostname = M.Groups["hostname"].Value.ToLower();
                    if (!Entries.ContainsKey(hostname))
                    {
                        IPAddress addy = null;
                        if (IPAddress.TryParse(M.Groups["address"].Value, out addy))
                            Entries.Add(hostname, addy);
                    }
                }
            }

            // Make sure we have a localhost loopback! Save aswell, so its available for future
            if (!Entries.ContainsKey("localhost"))
            {
                OrigContents.Add("127.0.0.1\tlocalhost");
                Entries.Add("localhost", IPAddress.Loopback);
            }
        }