Hammer: Text Compressor based on Hamming Code

I just found this.

Usage

To compress:

$ gcc -o hmr hmr.c        # compile hmr.c
$ ./hmr huge.txt huge.hm  # compress huge.txt

To decopmress:

$ gcc -o dhmr dhmr.c      # compile dhmr.c
$ ./dhmr huge.hm huge.res # decompress huge.hm

To check:

$ diff huge.txt huge.res

To see:

$ ls -s1h huge.txt huge.hm
3.6M huge.hm
6.2M huge.txt