See this code posted on HN a month ago too: https://gist.github.com/macournoyer/620a8ba4a2ecd6d6feaf https://gist.github.com/macournoyer/620a8ba4a2ecd6d6feaf I

See this code posted on HN a month ago too: https://gist.github.com/macournoyer/620a8ba4a2ecd6d6feaf https://gist.github.com/macournoyer/620a8ba4a2ecd6d6feaf I found the code very clear and understandable.