VFP-LSP

Is getting archive because my company pull the plug on it. I might come back at some point...

A modern Language Server Protocol (LSP) implementation for Visual FoxPro, bringing contemporary IDE features to VFP development.

Features

• Syntax Highlighting - Full syntax highlighting for VFP code
• Diagnostics - Real-time error detection for syntax issues
• Completion - Keyword, function, and identifier completion
• Go to Definition - Navigate to function/procedure definitions
• Find References - Find all usages of a symbol
• Hover - Documentation on hover for keywords and built-in functions
• Document Symbols - Outline of functions, procedures, and classes
• Semantic Tokens - Enhanced syntax highlighting via LSP

Supported VFP Features

• Preprocessor directives (#DEFINE, #IF, #INCLUDE, etc.)
• Embedded SQL (SELECT, INSERT, UPDATE, DELETE)
• Classes and inheritance
• Exception handling (TRY/CATCH/FINALLY)
• All control flow constructs
• Date/DateTime literals
• All VFP operators including .AND., .OR., .NOT.

Installation

Pre-built Binaries

Download the latest release for your platform from GitHub Releases:

• Linux (x64): vfp-lsp-linux-x64
• Linux (ARM64): vfp-lsp-linux-arm64
• macOS (x64): vfp-lsp-macos-x64
• macOS (ARM64): vfp-lsp-macos-arm64
• Windows (x64): vfp-lsp-windows-x64.exe

After downloading:

1. Make it executable (Linux/macOS): chmod +x vfp-lsp-*
2. Add to your PATH or configure editor to use the full path

Building from Source

Prerequisites

• Rust 1.70 or later
• Node.js 18+ (for VS Code extension)

Build the LSP Server

cargo build --release

The binary will be at target/release/vfp-lsp.

Run Tests

cargo test

Editor Setup

VS Code

1. Build the LSP server (see above)
2. Add vfp-lsp to your PATH, or configure the path in settings
3. Install the extension:

   cd editors/vscode
   npm install
   vsce package

4. Press F5 to launch a new VS Code window with the extension loaded

Neovim

See editors/neovim/README.md for detailed instructions.

Quick setup with lazy.nvim:

return {
    {
        "franpfeiffer/vfp-lsp",
        ft = { "vfp", "foxpro" },
        config = function()
            require("vfp-lsp").setup()
        end,
    }
}

Configuration

VS Code Settings

{
  "vfp.server.path": "/path/to/vfp-lsp",
  "vfp.trace.server": "verbose" // for better debugging
}

Neovim Configuration

require("vfp-lsp").setup({
  cmd = "/path/to/vfp-lsp",
  on_attach = function(client, bufnr)
    -- Your keymaps here
  end,
})

License

MIT