Unix to Unix (UU) Encoding
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The code I present here encodes binary files to "Unix to Unix" (UU) formatted Text
and Decodes "Unix to Unix" (UU) formatted Text to the original binary file.
This encoding is used to convert binary files into text files so that they can be sent through e-mail systems.
The encoded data is larger than the original data.
Any one encoded line of text will not exceed 62 characters.
Base64 produces smaller encoded files than "Unix to Unix" (UU).
Usage:
  CUU::Encode("c:\\tJpg.uu","c:\\t.Jpg"  );
  CUU::Decode("c:\\t1.Jpg" ,"c:\\tJpg.uu");
(Note that WinZip extracts .uu files)

Unix-to-Unix(UU) encode/decode algorithm:
uuencoding takes 24 bit from input stream (3 bytes) and splits it into 32 bits (4 bytes) output.
Each output byte has the top 2 bits clear, and can be translated into a printable character.
The traditional way is to simply add $20 (space).
uudecoding simply subtracts $20, strips the top 2 bits from input, and puts things back together.

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 (1368) Last modified: Tue, 03 Feb 2009 18:26:12 +0000