Forester LSP

Language Server Protocol server for the Forester behavior tree language.

Requirements

• Java 17+

Build

.\gradlew.bat build

Run

Stdio mode (for editor integration):

.\gradlew.bat run

Socket mode:

.\gradlew.bat run --args="--socket --port 5007"

Editor integrations

See editors/:

• VS Code — editors/vscode: one-command .vsix install, or F5 from this repo for development.
• Neovim — editors/neovim: single-file plugin, copy one lua file into ~/.config/nvim/plugin/.
• Helix — editors/helix: ./install.sh.
• Emacs — editors/emacs: single-file eglot integration.
• Sublime Text — editors/sublime: ./install.sh.
• JetBrains — covered by an independent plugin (see editors/README.md).

Features

• Full-text document synchronization
• Syntax highlighting via LSP semantic tokens (textDocument/semanticTokens/full)
• Completion provider (stub)
• ANTLR4-based parsing for .tree files

License

BSD 3-Clause