See my comment to a sibling: https://news.ycombinator.com/item?id=43132279 https://news.ycombinator.com/item?id=43132279 - there's a few simple little functiona

See my comment to a sibling: https://news.ycombinator.com/item?id=43132279 https://news.ycombinator.com/item?id=43132279 - there's a few simple little functional objects out there which make this kind of process quite easy.