rb VS wsjq

I like using `jq` to create line-delimited JSON and then using a language I know well (Node) to process it after that point. I find `jq '.[] | select(.location=="Stockholm")'` less readable than something like `nq --filter '({location}) => location === "Stockholm"'` because I'm much more used to Node syntax.

- https://github.com/thisredone/rb is a widely used ruby version of this idea

- https://github.com/KelWill/nq#readme is something similar that I wrote for my own use

You might be interested by this little script https://github.com/thisredone/rb

jq is unsurprisingly Turing complete, so I wrote a Whitespace interpreter[0] in jq. It is able to handle real-time I/O by requesting lines on-demand from stdin, which is the main input source, with `input` and outputting strings in a stream.

With a relatively large jq program like that, it is critical that the main recursive loop run efficiently, so it's annoying that there's no way to detect whether tail call optimization was applied, other than benchmarking. It would also be nice if object values were lazily evaluated so that it would be possible to create ad hoc switches.

[0]: https://github.com/andrewarchi/wsjq