C# .cs compiling question??
Code:
using System;
using System.Security.Cryptography;
namespace yEnc
{
/// <summary>
/// Decoder for the yEnc spec
/// </summary>
public class YEncDecoder:
ICryptoTransform
{
const byte life = 42; //meaning of life (or was that the answer to everything?) from hitchhikers guide - delta value used by yEnc
const byte death = 64; //
const byte escapeByte = 61; //escape byte used by yEnc
int lineBytes = 0;
CRC32 crc32Hasher = new CRC32();
byte[] storedHash = null;
bool escapeNextByte = false;
public byte[] CRCHash
{
get
{
return storedHash;
}
}
public int GetByteCount(
byte[] source,
int index,
int count,
bool flush
)
{
if (source == null)
throw new ArgumentNullException();
int bytes = 0;
int lineBytes = this.lineBytes;
bool escapeNextByte = this.escapeNextByte; //keep our own copy
for(int i=index; i<index+count; i++)
{
bool newline = false;
bool abort = false;
byte b;
try
{
b = source[i];
if (!escapeNextByte)
{
switch (b)
{
case escapeByte:
i++;
if (i<index+count)
{}
else
{
//what a pain. The bytes stopped on an escape character
abort = true;
escapeNextByte = true;
}
break;
case 10:
case 13:
newline = true;
break;
}
}
}
catch
{
throw new ArgumentOutOfRangeException();
}
if ((!newline) && (!abort))
{
bytes++;
escapeNextByte = false;
}
}
return bytes;
}
public int GetBytes(
byte[] source,
int sourceIndex,
int sourceCount,
byte[] dest,
int destIndex,
bool flush
)
{
if (source == null || source == null)
throw new ArgumentNullException();
int bytes = 0;
int newDestIndex = destIndex;
for(int i=sourceIndex; i<sourceIndex+sourceCount; i++)
{
bool escape = false;
bool newline = false;
bool abort = false;
byte b;
try
{
b = source[i];
if (!escapeNextByte)
{
switch (b)
{
case escapeByte:
i++;
escape = true;
if (i<sourceIndex+sourceCount)
{
b = source[i];
lineBytes ++;
}
else
{
//what a pain, we cannot get the next character now, so
//we set a flag to tell us to do it next time
escapeNextByte = true;
abort = true;
}
break;
case 10:
case 13:
newline = true;
break;
}
}
}
catch
{
throw new ArgumentOutOfRangeException();
}
if ((!newline) && (!abort))
{
b = DecodeByte(b, escape | escapeNextByte);
escapeNextByte = false;
try
{
dest[newDestIndex] = b;
newDestIndex++;
bytes++;
}
catch
{
throw new ArgumentException();
}
}
}
if (flush)
{
crc32Hasher.TransformFinalBlock(dest, destIndex, bytes);
storedHash = crc32Hasher.Hash;
crc32Hasher = new CRC32();
}
else
crc32Hasher.TransformBlock(dest, destIndex, bytes, dest, destIndex);
return bytes;
}
private byte DecodeByte(byte b, bool escape)
{
unchecked
{
if (escape)
b -= death;
b -= life;
}
return b;
}
#region ICryptoTransform
int ICryptoTransform.TransformBlock(
byte[] inputBuffer,
int inputOffset,
int inputCount,
byte[] outputBuffer,
int outputOffset
)
{
return GetBytes(inputBuffer, inputOffset, inputCount, outputBuffer, outputOffset, false);
}
byte[] ICryptoTransform.TransformFinalBlock(
byte[] inputBuffer,
int inputOffset,
int inputCount
)
{
int count = GetByteCount(inputBuffer, inputOffset, inputCount, true);
byte[] output = new byte[count];
GetBytes(inputBuffer, inputOffset, inputCount, output, 0, true);
return output;
}
void IDisposable.Dispose()
{
}
bool ICryptoTransform.CanReuseTransform {get { return true;} }
bool ICryptoTransform.CanTransformMultipleBlocks {get {return true; } }
int ICryptoTransform.InputBlockSize {get { return 1; } }
int ICryptoTransform.OutputBlockSize {get { return 1; } }
#endregion
}
}
I have never used C# i believe the extension is .cs, and on my computer the default viewer is Dreamweaver. How do i compile this code in dreamweaver. I also have Visual C++ 6.0. The code is a Decoder for a very popular encoding.
