This repository contains two grammars, for Rust and Kotlin, both recently added in 2026. The intention is to eventually have all of the grammars here -- Java, Python, C#, and whatever other ones become available. From the top-level directory, you can build and test either grammar via:

  ant -f rust test

or:

  ant -f kotlin test

respectively. Note that the above is not currently working for any target language other than Java. This is also just an interim situation.