GitSharp.Core.Transport.UploadPack.RecvWants C# (CSharp) Method

        private void RecvWants()
        {
            bool isFirst = true;
            for (; ; isFirst = false)
            {
                string line;
                try
                {
                    line = _pckIn.ReadString();
                }
                catch (EndOfStreamException)
                {
                    if (isFirst) break;
                    throw;
                }

                if (line.Length == 0) break;
                if (!line.StartsWith("want ") || line.Length < 45)
                {
                    throw new PackProtocolException("expected want; got " + line);
                }

                if (isFirst)
                {
                    int sp = line.IndexOf(' ', 45);
                    if (sp >= 0)
                    {
                        foreach (string c in line.Substring(sp + 1).Split(' '))
                            _options.Add(c);
                        line = line.Slice(0, sp);
                    }
                }

                string name = line.Substring(5);
                ObjectId id = ObjectId.FromString(name);
                RevObject o;
                try
                {
                    o = _walk.parseAny(id);
                }
                catch (IOException e)
                {
                    throw new PackProtocolException(name + " not valid", e);
                }
                if (!o.has(ADVERTISED))
                {
                    throw new PackProtocolException(name + " not valid");
                }

                Want(o);
            }
        }