lzwjs

Self-deflating Javascript, written in Python and Javascript.

Usage:

python lzwjs.py < [js file] > [packed js file]

Some tests:

 python lzwjs.py < prototype-min.js > test.js
 >> 29756B ..encypt.. 11931 codes, 18961B ..pack.. 25284B
 >> ratio: 0.849711

How it works:

lzwjs.py accepts ASCII-encodable data on stdin, which it
compresses using variable-width LZW, then converts to
ASCII-encodable base64. A script is written to stdout which
decodes and decompresses the data, then eval()s it.