public static byte ReadByte(Stream s)
{
int v = s.ReadByte();
if (v == -1)
throw new Exception("IOException: EOF");
return (byte)v;
}
public static int InternalReadByte(Stream s)
{
int v = s.ReadByte();
if (v == -1)
throw new Exception("IOException: EOF");
return v;
}
public static uint ReadUInt32(Stream s)
{
int a = s.ReadByte();
int b = s.ReadByte();
int c = s.ReadByte();
int d = InternalReadByte(s);
return (uint)((a << 24) | (b << 16) | (c << 8) | d);
}
public static ushort ReadUInt16(Stream s)
{
int a = s.ReadByte();
int b = InternalReadByte(s);
return (ushort)((a << 8) | b);
}
public static char ReadChar(Stream s)
{
int a = s.ReadByte();
int b = InternalReadByte(s);
return (char)((a << 8) | b);
}
public static sbyte ReadSByte(Stream s)
{
int v = s.ReadByte();
return (sbyte)v;
}
private static int InternalReadInt16(Stream s)
{
int a = s.ReadByte();
int b = InternalReadByte(s);
return ((a << 8) | b);
}
private static int ReadUtfChar(Stream s, StringBuilder sb)
{
int a = InternalReadByte(s);
if ((a & 0x80) == 0)
{
sb.Append((char)a);
return 1;
}
if ((a & 0xe0) == 0xb0)
{
int b = InternalReadByte(s);
sb.Append((char)(((a & 0x1F) << 6) | (b & 0x3F)));
return 2;
}
if ((a & 0xf0) == 0xe0)
{
int b = s.ReadByte();
int c = InternalReadByte(s);
sb.Append((char)(((a & 0x0F) << 12) | ((b & 0x3F) << 6) | (c & 0x3F)));
return 3;
}
throw new Exception("IOException: UTFDataFormat:");
}
