inspect.lua VS Penlight

inspect and strong

I've used inspect.lua to inspect the client table and I can see valid-looking formatCommand settings (using the exact efm folder that u/lukas-reineke uses)

For more complex string matching tasks that the built-in patterns cannot handle, LPeg is a good choice. It's more powerful than regexes while also being easy to use. I also wouldn't expect something like PCRE to ever be included in the Lua standard library. PCRE by itself would already be larger than the rest of the Lua interpreter + standard library.

By the way, for formatting Lua tables I like using inspect[1]. (It's not part of the standard library but oh well, that's the whole topic of today's discussion).

https://github.com/kikito/inspect.lua

To have enough batteries you kind of just need penlight[1] and maybe luastd. Of course there's posix, lfs, socket, luasec and you're semi set.

[1]: https://lunarmodules.github.io/Penlight/

https://github.com/lunarmodules/Penlight provides a bunch of functionality for stuff like that.

However, there's already a widely known, well-tested library in the lua community called penlight that covers a lot of lua's "missing" functionality. It's got sane string manipulation, ergonomic tables, a basic class mechanism, functional programming, enums, exceptions, path manipulation, etc...

Lua is a small language and its "standard library" is very minimal. Lua's intended for embedding so usually the host program provides a broader standard library by exposing functions to lua. However, there are several standard library packages for lua: batteries and lume are focused on gamedev; Penlight aims at bringing the breadth of python's stdlib to lua; plenary.nvim for nvim plugins; and probably more for other domains. I'd definitely recommend checking these out to help get closer to functionality level of most other languages (I use both lume and batteries, but dropped penlight awhile back because I found some implementations confusing/overcomplicated/inconsistent).

Lua is a small language and its "standard library" is very minimal. This was one of my initial roadblocks. Lua's intended for embedding so usually the host program provides a broader standard library by exposing functions to lua. However, there are several standard library packages for lua: batteries, Penlight, or the aforementioned lume. I'd definitely recommend checking these out to help get closer to functionality level of most other languages (I use both lume and batteries, but dropped penlight awhile back).

As for batteries, there's things like penlight which comes with a huge set of pure Lua libraries inspired by Python. And, well, there's Fennel libraries with macros and more lispy style APIs.

I'm very surprised there was no mention of Penlight in that article. Penlight, a supplemental standard library for Lua that is heavily inspired by Python's own standard library, has been around for years now:

https://github.com/lunarmodules/Penlight