One of my toy projects: https://github.com/thanatos/baseunicode ; there's probably a lot that could be done better, and the alphabet it uses needs to be greatly expanded.
There are few other implementations of the same idea out there, too. Here's another one: https://github.com/qntm/base65536 ; since it uses a power-of-two sized alphabet, it avoids some of the work mine has to do around partial output bytes. That link also links to some other ideas & implementations
The exact metric I cared about at the time was compressing for screen-space, not for actual byte-for-byte space. I wrote it after spending some time in a situation where doing a proper scp was just a PITA, unfortunately, but copy/pasting into a terminal is almost always a thing that works. But I was also dealing with screen/tmux, which makes scrolling difficult, so I wanted the output to fit in a screen. From that, you can implement a very poor man's scp with tar -cz FILES | base64 ; the base-unicode bit replaces the base64.
Mine doesn't use Huffman coding as it wants to stream data / it leans on gzip for doing that.
There are few other implementations of the same idea out there, too. Here's another one: https://github.com/qntm/base65536 ; since it uses a power-of-two sized alphabet, it avoids some of the work mine has to do around partial output bytes. That link also links to some other ideas & implementations
The exact metric I cared about at the time was compressing for screen-space, not for actual byte-for-byte space. I wrote it after spending some time in a situation where doing a proper scp was just a PITA, unfortunately, but copy/pasting into a terminal is almost always a thing that works. But I was also dealing with screen/tmux, which makes scrolling difficult, so I wanted the output to fit in a screen. From that, you can implement a very poor man's scp with tar -cz FILES | base64 ; the base-unicode bit replaces the base64.
Mine doesn't use Huffman coding as it wants to stream data / it leans on gzip for doing that.