wsjq

I couldn't find a run or raise repo that'd have a ws.jq and I'm not convinced it's https://github.com/thaliaarchi/wsjq (whitespace programing language implemented in jq...) Could you point at that? Thanks for sharing!

I'm continuing my tradition of doing AoC in Whitespace[0]. The first year I did it, it was motivation to build out a standard library so things wouldn't be so tedious. Now, I find myself wishing I had finished better tooling. I debug with wsjq[1], a CLI debugger like gdb written in jq, but it's slow. [0]: https://github.com/thaliaarchi/ws-challenges [1]: https://github.com/thaliaarchi/wsjq

To see if gojq works even with complex jq programs, I tested it on my wsjq[0] Whitespace language interpreter, which uses most of the advanced jq features. It impressively appears to support the full jq language, though I uncovered a bug[1] in gojq. gojq's arbitrary-precision integer support will be useful (jq just uses 64-bit floating-point), though I suspect it will have performance regressions, since it uses math/big, instead of GMP. [0]: https://github.com/andrewarchi/wsjq [1]: https://github.com/itchyny/gojq/issues/186

I find the stateless streaming paradigm in jq very pleasing. Results can be emitted iteratively using generators, which are implemented as tail-recursive streams [0]. Combined with the `input` built-in filter, which yields the next item in the input stream, and jq can handle real-time I/O and function as a more general-purpose programming language. I built an interpreter for the Whitespace programming language in jq using these concepts and it's easily one of the most complex jq programs out there. [0]: https://stedolan.github.io/jq/manual/#Generatorsanditerators [1]: https://github.com/andrewarchi/wsjq

I implemented a Whitespace interpreter in jq! https://github.com/andrewarchi/wsjq

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