The minifier is based on the semantics of jsmin.c by Douglas Crockford.
The module is a re-implementation aiming for speed, so it can be used at runtime (rather than during a preprocessing step). Usually it produces the same results as the original jsmin.c. It differs in the following ways:
Since most parts of the logic are handled by the regex engine it’s way faster than the original python port of jsmin.c by Baruch Even. The speed factor varies between about 6 and 55 depending on input and python version (it gets faster the more compressed the input already is). Compared to the speed-refactored python port by Dave St.Germain the performance gain is less dramatic but still between 3 and 50 (for huge inputs)). See the docs/BENCHMARKS file for details.
rjsmin.c is a reimplementation of rjsmin.py in C and speeds it up even more.
Both python 2 (>=2.4) and python 3 are supported.
Copyright 2011 - 2015 André Malo or his licensors, as applicable.
The whole package (except for the files in the bench/ directory) is distributed under the Apache License Version 2.0. You’ll find a copy in the root directory of the distribution or online at: <http://www.apache.org/licenses/LICENSE-2.0>.