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nvim-fe Plugin

Neovim plugin for the Fe programming language with:

  • Syntax highlighting via Tree-sitter
  • Indentation support
  • LSP integration for go-to-definition and more

Installation

Prerequisites

  1. fe-language-server If you haven't already, install it to your PATH:
cargo install --git https://github.com/ethereum/fe.git --branch fe-v2 fe-language-server

  1. Neovim 0.9.0 or later Requires Tree-sitter and vim.filetype.add support

  2. GCC or Clang For compiling the Tree-sitter parser

Manual Installation

  1. Copy this directory to:
cp -r ./ ~/.local/share/nvim/site/pack/plugins/start/nvim-fe
  1. Install nvim-treesitter:
git clone https://github.com/nvim-treesitter/nvim-treesitter ~/.local/share/nvim/site/pack/plugins/start/nvim-treesitter
  1. Add to init.lua:
require("nvim_fe").setup()

Install with packer.nvim

Add to your packer config:

use({
    "https://github.com/fe-lang/nvim-fe",
    config = function()
        require("nvim_fe").setup()
    end,
    requires = {
        "nvim-treesitter/nvim-treesitter",
    },
})

Install with lazy.nvim

{
    "https://github.com/fe-lang/nvim-fe",
    dependencies = { "nvim-treesitter/nvim-treesitter" },
    config = function()
        require("nvim_fe").setup()
    end,
}

Troubleshooting

Missing Syntax Highlighting

  1. Ensure nvim-treesitter is installed:

    :TSInstallInfo

    Confirm fe is listed under "Parsers installed."

  2. Check queries:

    :lua print(vim.inspect(vim.api.nvim_get_runtime_file("queries/fe/*.scm", true)))

    Ensure fe queries are loaded.

Missing LSP Features

  1. Ensure fe-language-server is installed and available in your PATH.

  2. Check the LSP client:

    :LspInfo

    Confirm the Fe LSP client is listed and attached.

Reinstall the Plugin

Delete the runtime directories to force reinstallation:

rm -rf ~/.local/share/nvim/tree-sitter-fe
rm -rf ~/.local/share/nvim/nvim-fe-runtime

Restart Neovim and the plugin will reinitialize.