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path: root/.config/nvim/lsp/turtle_ls.lua
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---@brief
---
--- https://github.com/stardog-union/stardog-language-servers/tree/master/packages/turtle-language-server
--- `turtle-language-server`, An editor-agnostic server providing language intelligence (diagnostics, hover tooltips, etc.) for the W3C standard Turtle RDF syntax via the Language Server Protocol.
--- installable via npm install -g turtle-language-server or yarn global add turtle-language-server.
--- requires node.

local bin_name = 'turtle-language-server'
local bin_path = os.getenv 'NVM_BIN'
local full_path
if bin_path == nil then
  local paths = {}
  local sep = ':'
  if vim.fn.has 'win32' == 1 then
    sep = ';'
  end
  local path = os.getenv 'PATH'
  if path ~= nil then
    for str in string.gmatch(path, '([^' .. sep .. ']+)') do
      paths[#paths + 1] = str
    end
  end
  for _, p in ipairs(paths) do
    local candidate = table.concat({ p, bin_name }, '/')
    if (vim.uv.fs_stat(candidate) or {}).type == 'file' then
      full_path = candidate
      break
    end
  end
else
  full_path = table.concat({ bin_path, bin_name }, '/')
end

---@type vim.lsp.Config
return {
  cmd = { 'node', full_path, '--stdio' },
  filetypes = { 'turtle', 'ttl' },
  root_markers = { '.git' },
}