Vim

primate ships syntax and ftdetect files for Vim/Neovim at editors/vim/. They handle highlighting; LSP features are wired through your favorite client (coc.nvim, nvim-lspconfig, vim-lsp).

Syntax + ftdetect

Drop the files into your runtime path:

cp editors/vim/syntax/primate.vim    ~/.vim/syntax/
cp editors/vim/ftdetect/primate.vim  ~/.vim/ftdetect/

Or for Neovim:

cp editors/vim/syntax/primate.vim    ~/.config/nvim/syntax/
cp editors/vim/ftdetect/primate.vim  ~/.config/nvim/ftdetect/

After this, *.prim files auto-detect as primate and pick up syntax highlighting (keywords, strings, numbers, doc comments, attributes).

LSP

Wire primate lsp into your LSP client. Examples below.

nvim-lspconfig

local lspconfig = require('lspconfig')
local configs   = require('lspconfig.configs')

if not configs.primate then
  configs.primate = {
    default_config = {
      cmd       = { 'primate', 'lsp' },
      filetypes = { 'primate' },
      root_dir  = lspconfig.util.root_pattern('primate.toml', '.git'),
      settings  = {},
    },
  }
end

lspconfig.primate.setup({})

coc.nvim

In coc-settings.json:

{
  "languageserver": {
    "primate": {
      "command":     "primate",
      "args":        ["lsp"],
      "filetypes":   ["primate"],
      "rootPatterns": ["primate.toml", ".git"]
    }
  }
}

vim-lsp

if executable('primate')
  au User lsp_setup call lsp#register_server({
    \ 'name': 'primate',
    \ 'cmd': {server_info -> ['primate', 'lsp']},
    \ 'allowlist': ['primate'],
    \ })
endif

Verifying it works

Open one of examples/constants/*.prim. You should see:

• Keywords (enum, type, namespace, use) highlighted as Keyword.
• Doc comments (///) styled distinctly from regular line comments.
• Numeric literals with their unit suffixes — 30s, 100MiB — visually distinct from plain numbers.

If LSP is wired up, :LspHover (or your client’s equivalent) on a type name shows its kind, namespace, and doc comment. :LspDefinition jumps to the declaration.

Format on save

primate has no native autocmd, but you can wire primate fmt into a buffer-local BufWritePre or use your LSP client’s formatExpr. With nvim-lspconfig:

vim.api.nvim_create_autocmd('BufWritePre', {
  pattern = '*.prim',
  callback = function() vim.lsp.buf.format() end,
})