# Jai plugin for IntelliJ IDEA

Support for the [Jai](https://jai.community) programming language.
Everything here is derived from the local Jai distribution at `~/.local/jai`,
never from online material (see `AGENTS.md`).

## What works today

- `.jai` file type with its own icon
- Syntax highlighting: keywords, built-in type names, compiler directives
  (`#import`, `#run`, …), notes (`@Cleanup`), numbers (hex / binary / hexfloat /
  `_` separators), strings, here-strings (`#string DONE … DONE`), nesting block
  comments, operators, `---`, `$`/`$$`, `it` / `it_index`
- Colour settings page (**Settings → Editor → Color Scheme → Jai**)
- Comment / uncomment (`//` and nesting `/* */`)
- Brace matching, including the Jai-only `.{` struct-literal and `.[`
  array-literal openers

Not yet: parser and PSI, so no structure view, go-to-definition, completion,
formatting, or inspections. See `docs/BUILD_PLAN.md` for the phase plan.

## Install it locally

```bash
./jaigradle buildPlugin
# -> build/distributions/intellijai-1.0.0-SNAPSHOT.zip
```

In the IDE: **Settings → Plugins → ⚙ → Install Plugin from Disk…**, pick that
ZIP, restart when prompted. Requires build 253 (2025.3) or newer; verified
compatible with IU-253, IU-261 and IU-262 by the JetBrains Plugin Verifier.

To try it, open any file from `~/.local/jai/how_to/`.

Uninstall or update the same way — installing a new ZIP over the old one
replaces it.

## Develop

```bash
./jaigradle test     # or ./jaitest, which reports the JUnit XML
./jaigradle check    # full verification
```

Never call `./gradlew` directly: there is no JDK on `PATH`, and `./jaigradle`
resolves one via mise first. Read `AGENTS.md` before changing anything.

Key docs:

| File | What it is |
| --- | --- |
| `AGENTS.md` | how to work in this repo; current state |
| `docs/JAI_LANGUAGE_REFERENCE.md` | the language, transcribed from the compiler |
| `docs/BUILD_PLAN.md` | phased plan and testing strategy |