Rave Language Support for VS Code

This extension provides syntax highlighting and basic editor support for the
Jeppesen Rave domain-specific language (DSL), used in airline crew planning and operations systems.

✨ Features

• Syntax highlighting for the full Rave language specification:
  • Structure: module, rule, constraint, table, matrix, set, enum, accumulator, etc.
  • Types: int, bool, string, reltime, abstime, void.
  • Variables: %variables% and scoped references like trip.%start_station%.
  • Constants: Integers, Reltimes (e.g., 12:30), Booleans (true, false), and Month names.
  • Functions & Traversers: sum, avg, min, max, count, first, next, overlap, scale_time, etc.
  • Keywords: valid, remark, where, while, foreach, import, export, etc.
  • Comments: Block comments (/* ... */).
• File Extension Support: Automatically associates .rave and .etab files.
• Editor Support: Bracket matching and auto-closing.

📦 Installation

From Source

1. Clone this repository:

   git clone https://github.com/your-username/vscode-rave.git
   cd vscode-rave
   

🎨 Color customization

1. Identify the editor tokens and scopes that you want to customize (CTRL + SHIFT + P then search for Developer: Inspect editor tokens and scopes)
2. Once you identify the textmate scope add the config to your json file under the "editor.tokenColorCustomizations" field

Example

"editor.tokenColorCustomizations": {
        "textMateRules": [
            {
                "scope": "keyword.control.import.rave",
                "settings": {
                    "foreground": "#E5C07B",
                }
            },
            {
                "scope": "entity.name.module.rave",
                "settings": {
                    "foreground": "#61AFEF"
                }
            },
            {
                "scope": "variable.other.member.rave",
                "settings": {
                    "foreground": "#c38a79"
                }
            },
            {
                "scope": "storage.type.rave",
                "settings": {
                    "foreground": "#C678DD",
                    "fontStyle": "italic"
                }
            }
        ]
    }

🚀 Vim / Neovim Support

The language server included in this repository (server/) follows the standard LSP (Language Server Protocol), enabling support for editors like Neovim.

1. Build the Language Server

You must compile the Go server binary first:

cd server
go build -o rave-lsp main.go
# Optional: Move to your path
# mv rave-lsp ~/.local/bin/

2. Configure Neovim (using nvim-lspconfig)

Add the following to your init.lua or plugin configuration:

-- Add filetype detection for .rave files
vim.filetype.add({
  extension = {
    rave = "rave",
  },
})

-- Configure the LSP client
local lspconfig = require('lspconfig')
local configs = require('lspconfig.configs')

if not configs.rave_lsp then
  configs.rave_lsp = {
    default_config = {
      cmd = { "/path/to/your/vscode-rave/server/rave-lsp" }, -- UPDATE THIS PATH
      filetypes = { "rave" },
      root_dir = lspconfig.util.root_pattern(".git", "package.json"),
      settings = {},
    },
  }
end

lspconfig.rave_lsp.setup({})