# Lua

Lua support is available through the [Lua extension](https://github.com/zed-extensions/lua).

- Tree-sitter: [tree-sitter-grammars/tree-sitter-lua](https://github.com/tree-sitter-grammars/tree-sitter-lua)
- Language server: [LuaLS/lua-language-server](https://github.com/LuaLS/lua-language-server)

## luarc.json

To configure LuaLS you can create a `.luarc.json` file in the root of your workspace.

```json
{
  "$schema": "https://raw.githubusercontent.com/LuaLS/vscode-lua/master/setting/schema.json",
  "runtime.version": "Lua 5.4",
  "format.enable": true,
  "workspace.library": ["../somedir/library"]
}
```

See [LuaLS Settings Documentation](https://luals.github.io/wiki/settings/) for all available configuration options, or when editing this file in Zed available settings options will autocomplete, (e.g `runtime.version` will show `"Lua 5.1"`, `"Lua 5.2"`, `"Lua 5.3"`, `"Lua 5.4"` and `"LuaJIT"` as allowed values). Note when importing settings options from VSCode, remove the `Lua.` prefix. (e.g. `runtime.version` instead of `Lua.runtime.version`).

### LuaCATS Definitions

LuaLS can provide enhanced LSP autocompletion suggestions and type validation with the help of LuaCATS (Lua Comment and Type System) definitions. These definitions are available for many common Lua libraries, and local paths containing them can be specified via `workspace.library` in `luarc.json`. You can do this via relative paths if you checkout your definitions into the same partent directory of your project (`../playdate-luacats`, `../love2d`, etc). Alternatively you can create submodule(s) inside your project for each LuaCATS definition repo.

### LÖVE (Love2D) {#love2d}

To use [LÖVE (Love2D)](https://love2d.org/) in Zed, checkout [LuaCATS/love2d](https://github.com/LuaCATS/love2d) into a folder called `love2d-luacats` into the parent folder of your project:

```sh
cd .. && git clone https://github.com/LuaCATS/love2d love2d-luacats
```

Then in your `.luarc.json`:

```
{
  "$schema": "https://raw.githubusercontent.com/LuaLS/vscode-lua/master/setting/schema.json",
  "runtime.version": "Lua 5.4",
  "workspace.library": ["../love2d-luacats"],
  "runtime.special": {
    "love.filesystem.load": "loadfile"
  }
}
```

### PlaydateSDK

To use [Playdate Lua SDK](https://play.date/dev/) in Zed, checkout [playdate-luacats](https://github.com/notpeter/playdate-luacats) into the parent folder of your project:

```sh
cd .. && git clone https://github.com/notpeter/playdate-luacats
```

Then in your `.luarc.json`:

```json
{
  "$schema": "https://raw.githubusercontent.com/LuaLS/vscode-lua/master/setting/schema.json",
  "runtime.version": "Lua 5.4",
  "runtime.nonstandardSymbol": [
    "+=",
    "-=",
    "*=",
    "/=",
    "//=",
    "%=",
    "<<=",
    ">>=",
    "&=",