TOML language support for IntelliJ IDEA based IDEs

The plugin provides nothing but syntax highlighting at the moment.

Installation

To install plugin open Settings > Plugins > Browse repositories, and search for TOML.

Contributing

See Contributing in the IntelliJ-Rust plugin.

Extending

It's possible to extend TOML support from other plugins:

• The PSI structure is expected remain backwards compatible.
• TomlKey and TomlValue are ContributedReferenceHosts, so it's possible to inject references into them from third-party plugins, and provide completion and goto definition.

See https://github.com/intellij-rust/intellij-rust/pull/1982/ for an example.