minimist

Link: https://github.com/bucaran/parsec Long time `minimist` user here. Leanest and simplest of the pack at just 200 LOC with _no_ dependencies by the legendary substack. Unfortunately the documentation is scarce, it has a growing number of unresolved issues → https://github.com/substack/minimist/issues/50. Parsec is only 50 LOC and the API is simpler, and still no dependencies! Features + Well documented + Based in → [UNIX Utility Conventions](http://pubs.opengroup.org/onlinepubs/7908799/xbd/utilconv.ht...) + Custom aliases + Default shorthands + Default values / types + Handle --no-* options + Handle unknown options

Long time `minimist` user here. Leanest and simplest of the pack at just 200 LOC with _no_ dependencies by the legendary substack. Unfortunately the documentation is scarce, it has a growing number of unresolved issues and it simply does not adhere to the [UNIX utility conventions](http://pubs.opengroup.org/onlinepubs/7908799/xbd/utilconv.html) very well (see [here](https://github.com/substack/minimist/issues/50)). Parsec is only 50 LOC and the API is simpler, and still no dependencies! ## Features + Well documented + Based in → [UNIX Utility Conventions](http://pubs.opengroup.org/onlinepubs/7908799/xbd/utilconv.html) + Custom aliases + Default shorthands + Default values / types + Handle --no-* options + Handle unknown options

I certainly found this interesting and implemented the node.js package[1] in a project just now. I found it super easy to use -- much moreso than minimist[2] or commander[3]. [1]: https://github.com/docopt/docopt.coffee [2]: https://github.com/substack/minimist [3]: https://github.com/visionmedia/commander.js