Aselia.Core.InterServer.Packer.Pack C# (CSharp) Method

        public static byte[] Pack(string text)
        {
            char[] chars = text.ToCharArray();
            byte[] best = null;
            List<byte> pack = new List<byte>();
            for (byte p = 0; p < 8; p++)
            {
                unchecked
                {
                    pack.Clear();
                    bool hi = true;
                    byte b = p;
                    for (int c = 0; c < chars.Length; c++)
                    {
                        byte i = 0;
                        for (i = 0; i < 0xf; i++)
                        {
                            if (PATTERNS[p, i] == chars[c])
                            {
                                break;
                            }
                        }
                        if (i == 0xf)
                        {
                            byte ascii = (byte)chars[c];
                            if (hi)
                            {
                                b |= (byte)(i << 4);
                                pack.Add(b);
                                pack.Add(ascii);
                                hi = false;
                            }
                            else
                            {
                                b = i;
                                b |= (byte)(ascii & 0xf0);
                                pack.Add(b);
                                b = (byte)(ascii & 0xf);
                                hi = true;
                            }
                        }
                        else if (hi)
                        {
                            b |= (byte)(i << 4);
                            pack.Add(b);
                            hi = false;
                        }
                        else
                        {
                            b = i;
                            hi = true;
                        }
                    }

                    if (hi)
                    {
                        b |= 0xf0;
                        pack.Add(b);
                    }
                }

                if (best == null || pack.Count < best.Length)
                {
                    best = pack.ToArray();
                }
            }

            byte[] normal = ASCIIEncoding.ASCII.GetBytes(text);
            if (normal.Length + 1 <= best.Length)
            {
                best = new byte[normal.Length + 1];
                best[0] = 0xff;
                Array.Copy(normal, 0, best, 1, normal.Length);
            }

            return best;
        }