What 3rd party LUA libraries/modules are included?

[Jakobud]

I noticed that some plugins use a require('json') module in their code. Is this a 3rd party LUA module/library that is bundled in the LUA API? Something like https://github.com/rxi/json.lua ?

Are there other bundled libraries that are included in the API? Is there a documented list of them so that I know what is available?

[Jakobud]

Or is the require('json') referring to requiring the included JSON plugin into your own plugin?

[cuavas]

MAME includes zlib, lfs, linenoise and sqlite3 Lua extensions.

The JSON script is luv-json, as you can see in the plugins folder: https://github.com/mamedev/mame/tree/master/plugins/json

[Jakobud]

Okay so when you do require is it trying to require something out of the plugin folder?