bqn-libs
kerf1
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bqn-libs
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Ngn/k (free K implementation)
Languages with multidimensional arrays (APL, BQN, J, but not K) have trouble with dicts because an index into an array is a list of numbers, and an index into a dict is an arbitrary value. Many primitives, and especially selection, are designed around lists of numbers and don't transfer to dicts. In K, where the index into a list is one number, there's still a requirement that the keys in a dict all have the same level of nesting, but this isn't bad in practice. BQN will eventually have hashmaps implemented as in a more mainstream/conventional way, as objects. There's a model at https://github.com/mlochbaum/bqn-libs/blob/master/hashmap.bq... .
I don't think studying the compiler is a very good way to learn BQN, but I would like to write up parts of it (limited by time and motivation of course). I did some chat sessions on this sort of compilation during early development; see the links at the bottom of https://mlochbaum.github.io/BQN/implementation/ .
kerf1
- Kerf has been open-sourced
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Hacker News top posts: Jul 23, 2022
Kerf Time Series Lang and Columnar DB Open Sourced\ (7 comments)
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Kerf Time Series Lang and Columnar DB Open Sourced
The issue with the discussion about the license change: https://github.com/kevinlawler/kerf1/issues/10
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Ngn/k (free K implementation)
The author of Kona has written kerf which I believe is intended for this same space. I’ve never used it though. https://github.com/kevinlawler/kerf1
What are some alternatives?
Kbd - Alternative unified APL keyboard layouts (AltGr, Backtick, Compositions)
PDP_11_Simulator - PDP11 Simulator written in APL
array - Simple array language written in kotlin
kona - Open-source implementation of the K programming language
kdb - kdb+ Working Group from FINOS Data Technologies program
aoc2017 - ngn/k
kerf - Kerf (Kerf2) is a columnar tick database and time-series language for Linux/OSX/BSD/iOS/Android. It is written in C++ and natively speaks JSON and SQL. Kerf can be used for trading platforms, feedhandlers, low-latency networking, high-volume analysis of realtime and historical data, logfile processing, and more.
ngn-k-tutorial - An ngn/k tutorial.