[Dnsmail-cvs] dnsmail MIME.cs,1.1,1.1.8.1

[Ethem E. <et...@us...>]

Update of /cvsroot/dnsmail/dnsmail
In directory sc8-pr-cvs12.sourceforge.net:/tmp/cvs-serv3858/dnsmail

Modified Files:
      Tag: DNSMAIL_02
	MIME.cs 
Log Message:
Some optimisation.

Index: MIME.cs
===================================================================
RCS file: /cvsroot/dnsmail/dnsmail/MIME.cs,v
retrieving revision 1.1
retrieving revision 1.1.8.1
diff -C2 -d -r1.1 -r1.1.8.1
*** MIME.cs	2 Mar 2006 16:26:54 -0000	1.1
--- MIME.cs	3 Aug 2006 16:34:00 -0000	1.1.8.1
***************
*** 123,127 ****
  		#endregion
  
- 
  		#region QPEncode
  		public static byte[] QPEncode(byte[] originalBuffer)
--- 123,126 ----
***************
*** 221,290 ****
  		public static byte[] QPDecode(byte[] decodedBuffer)
  		{
! 			if (decodedBuffer == null)
! 				return null;
! 		
! 			int buflen = decodedBuffer.Length;
! 			MemoryStream ms = new MemoryStream();
! 			byte[] token = new byte[3];
! 			int tokenLength = 0, i = 0, j;
! 			try 
  			{
! 				for(byte b,c,n1,n2; i < buflen; )
  				{
! 					if (tokenLength == 0) 
  					{
! 						j = i;
! 						while(i<buflen && decodemap[decodedBuffer[i]]!=DESC)i++;
! 						if (i!=j)ms.Write(decodedBuffer,j,i-j);
! 						if (i>=buflen)break;
! 					}
  					
! 					b = decodedBuffer[i++];
! 					c = decodemap[b];
! 
! 					token[tokenLength++] = b;
! 
! 					if (tokenLength != 3)
! 						continue;
! 
! 					tokenLength ^= tokenLength; // set 0
! 
! 					// assert (decodemap[token[0]] == DESC)
  
! 					n1 = decodemap[token[1]];
! 					n2 = decodemap[token[2]];
  
! 					if (n1 == DCR || n1 == DLF) 
! 					{	// "=\r", "=\n", or "=\r\n"
! 						if (n1 == DLF || n2 != DLF) 
  						{
! 							if (n2 == DESC) 
! 							{
! 								token[0] = token[2];
! 								tokenLength = 1;
! 							} 
  							else
! 								ms.WriteByte(token[2]);
  						}
! 					} 
! 					else if (n1 <= 15 || n2 <= 15) 
! 						ms.WriteByte((byte)((n1 << 4) | n2));
! 					else 
! 						ms.Write(token, 0, token.Length);
  				}
- 				byte[] ret = ms.ToArray();
- 				return ret;
- 			}
- 			catch
- 			{
- 				return null;			
- 			}
- 			finally
- 			{
- 				ms.SetLength(0L);
- 				ms.Capacity=0;
- 				ms.Close();
- 				ms=null;
  			}
  		}
  		#endregion
--- 220,298 ----
  		public static byte[] QPDecode(byte[] decodedBuffer)
  		{
! 			byte[] ret = null;
! 			if (decodedBuffer != null)
  			{
! 				int buflen = decodedBuffer.Length;
! 				MemoryStream ms = new MemoryStream();
! 				byte[] token = new byte[3];
! 				int tokenLength = 0, i = 0;
! 				try 
  				{
! 					while (i < buflen)
  					{
! 						if (tokenLength == 0) 
! 						{
! 							int j = i;
! 							while (i < buflen && decodemap[decodedBuffer[i]] != DESC)
! 								i++;
! 							if (i != j)
! 								ms.Write(decodedBuffer, j, i - j);
! 							if (i >= buflen)
! 								break;
! 						}
  					
! 						byte b = decodedBuffer[i++];
! 						byte c = decodemap[b];
  
! 						token[tokenLength++] = b;
  
! 						if (tokenLength == 3)
  						{
! 							tokenLength ^= tokenLength;
! 							// assert (decodemap[token[0]] == DESC)
! 							byte n1 = decodemap[token[1]];
! 							byte n2 = decodemap[token[2]];
! 							if (n1 == DCR || n1 == DLF)
! 							{  // "=\r", "=\n", or "=\r\n"
! 								if (n1 == DLF || n2 != DLF) 
! 								{
! 									if (n2 == DESC) 
! 									{
! 										token[0] = token[2];
! 										tokenLength = 1;
! 									} 
! 									else
! 									{
! 										ms.WriteByte(token[2]);
! 									}
! 								}
! 							}
  							else
! 							{
! 								if (n1 <= 15 || n2 <= 15)
! 								{
! 									ms.WriteByte((byte)((n1 << 4) | n2));
! 									continue;
! 								}
! 								ms.Write(token, 0, token.Length);
! 							}
  						}
! 					}
! 					ret = ms.ToArray();
! 				}
! 				catch
! 				{
! 					ret = null;			
! 				}
! 				finally
! 				{
! 					ms.SetLength(0L);
! 					ms.Capacity=0;
! 					ms.Close();
! 					ms=null;
  				}
  			}
+ 			return ret;
+ 
  		}
  		#endregion