public static byte[] PackEnumerable(string description, IEnumerable args)
{
DataConverter.PackContext packContext = new DataConverter.PackContext();
packContext.conv = DataConverter.CopyConv;
packContext.description = description;
IEnumerator enumerator = args.GetEnumerator();
bool flag = enumerator.MoveNext();
packContext.i = 0;
while (packContext.i < description.Length)
{
object oarg;
if (flag)
{
oarg = enumerator.Current;
}
else
{
if (packContext.repeat != 0)
{
break;
}
oarg = null;
}
int i = packContext.i;
if (DataConverter.PackOne(packContext, oarg))
{
flag = enumerator.MoveNext();
if (packContext.repeat > 0)
{
if (--packContext.repeat > 0)
{
packContext.i = i;
}
else
{
packContext.i++;
}
}
else
{
packContext.i++;
}
}
else
{
packContext.i++;
}
}
return(packContext.Get());
}
public static byte[] Pack(string description, params object[] args)
{
int num = 0;
DataConverter.PackContext packContext = new DataConverter.PackContext();
packContext.conv = DataConverter.CopyConv;
packContext.description = description;
packContext.i = 0;
while (packContext.i < description.Length)
{
object oarg;
if (num < args.Length)
{
oarg = args[num];
}
else
{
if (packContext.repeat != 0)
{
break;
}
oarg = null;
}
int i = packContext.i;
if (DataConverter.PackOne(packContext, oarg))
{
num++;
if (packContext.repeat > 0)
{
if (--packContext.repeat > 0)
{
packContext.i = i;
}
else
{
packContext.i++;
}
}
else
{
packContext.i++;
}
}
else
{
packContext.i++;
}
}
return(packContext.Get());
}
private static bool PackOne(DataConverter.PackContext b, object oarg)
{
char c = b.description[b.i];
switch (c)
{
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
b.repeat = (int)((short)b.description[b.i] - 48);
return(false);
default:
switch (c)
{
case '[':
{
int num = -1;
int i;
for (i = b.i + 1; i < b.description.Length; i++)
{
if (b.description[i] == ']')
{
break;
}
int num2 = (int)((short)b.description[i] - 48);
if (num2 >= 0 && num2 <= 9)
{
if (num == -1)
{
num = num2;
}
else
{
num = num * 10 + num2;
}
}
}
if (num == -1)
{
throw new ArgumentException("invalid size specification");
}
b.i = i;
b.repeat = num;
return(false);
}
default:
{
switch (c)
{
case '!':
b.align = -1;
return(false);
default:
switch (c)
{
case 'I':
b.Add(b.conv.GetBytes(Convert.ToUInt32(oarg)));
return(true);
default:
switch (c)
{
case 'x':
b.Add(new byte[1]);
return(false);
default:
if (c == '*')
{
b.repeat = int.MaxValue;
return(false);
}
if (c == 'S')
{
b.Add(b.conv.GetBytes(Convert.ToUInt16(oarg)));
return(true);
}
if (c != 's')
{
throw new ArgumentException(string.Format("invalid format specified `{0}'", b.description[b.i]));
}
b.Add(b.conv.GetBytes(Convert.ToInt16(oarg)));
return(true);
case 'z':
break;
}
break;
case 'L':
b.Add(b.conv.GetBytes(Convert.ToUInt64(oarg)));
return(true);
}
break;
case '$':
break;
case '%':
b.conv = DataConverter.Native;
return(false);
}
bool flag = b.description[b.i] == 'z';
b.i++;
if (b.i >= b.description.Length)
{
throw new ArgumentException("$ description needs a type specified", "description");
}
char c2 = b.description[b.i];
char c3 = c2;
int num2;
Encoding encoding;
switch (c3)
{
case '3':
encoding = Encoding.GetEncoding(12000);
num2 = 4;
break;
case '4':
encoding = Encoding.GetEncoding(12001);
num2 = 4;
break;
default:
if (c3 != 'b')
{
throw new ArgumentException("Invalid format for $ specifier", "description");
}
encoding = Encoding.BigEndianUnicode;
num2 = 2;
break;
case '6':
encoding = Encoding.Unicode;
num2 = 2;
break;
case '7':
encoding = Encoding.UTF7;
num2 = 1;
break;
case '8':
encoding = Encoding.UTF8;
num2 = 1;
break;
}
if (b.align == -1)
{
b.align = 4;
}
b.Add(encoding.GetBytes(Convert.ToString(oarg)));
if (flag)
{
b.Add(new byte[num2]);
}
break;
}
case '^':
b.conv = DataConverter.BigEndian;
return(false);
case '_':
b.conv = DataConverter.LittleEndian;
return(false);
case 'b':
b.Add(new byte[]
{
Convert.ToByte(oarg)
});
break;
case 'c':
b.Add(new byte[]
{
(byte)Convert.ToSByte(oarg)
});
break;
case 'd':
b.Add(b.conv.GetBytes(Convert.ToDouble(oarg)));
break;
case 'f':
b.Add(b.conv.GetBytes(Convert.ToSingle(oarg)));
break;
case 'i':
b.Add(b.conv.GetBytes(Convert.ToInt32(oarg)));
break;
case 'l':
b.Add(b.conv.GetBytes(Convert.ToInt64(oarg)));
break;
}
break;
case 'C':
b.Add(new byte[]
{
Convert.ToByte(oarg)
});
break;
}
return(true);
}
