internal static string UrlDecodeInternal(byte[] bytes, int offset, int count, Encoding encoding)
{
StringBuilder stringBuilder = new StringBuilder();
MemoryStream memoryStream = new MemoryStream();
int num = count + offset;
int i = offset;
while (i < num)
{
if (bytes[i] != 37 || i + 2 >= count || bytes[i + 1] == 37)
{
goto IL_C6;
}
if (bytes[i + 1] == 117 && i + 5 < num)
{
if (memoryStream.Length > 0L)
{
stringBuilder.Append(HttpUtility.GetChars(memoryStream, encoding));
memoryStream.SetLength(0L);
}
int @char = HttpUtility.GetChar(bytes, i + 2, 4);
if (@char == -1)
{
goto IL_C6;
}
stringBuilder.Append((char)@char);
i += 5;
}
else
{
int @char;
if ((@char = HttpUtility.GetChar(bytes, i + 1, 2)) == -1)
{
goto IL_C6;
}
memoryStream.WriteByte((byte)@char);
i += 2;
}
IL_10E:
i++;
continue;
IL_C6:
if (memoryStream.Length > 0L)
{
stringBuilder.Append(HttpUtility.GetChars(memoryStream, encoding));
memoryStream.SetLength(0L);
}
if (bytes[i] == 43)
{
stringBuilder.Append(' ');
goto IL_10E;
}
stringBuilder.Append((char)bytes[i]);
goto IL_10E;
}
if (memoryStream.Length > 0L)
{
stringBuilder.Append(HttpUtility.GetChars(memoryStream, encoding));
}
return(stringBuilder.ToString());
}
