print_nlua_funcs.lua

local funcs = {}
local function find_funcs(t, pre)
  if pre == "vim.fn" or pre == "vim.loop" then
    return
  end

  local function ident(name)
    if not name:match "^[a-zA-Z_][a-zA-Z_0-9]*$" then
      return ('%s["%s"]'):format(pre, name) -- I don't care about escaping.
    end
    return ("%s.%s"):format(pre, name)
  end

  for k, v in pairs(t) do
    k = tostring(k)
    if not k:match "^_" then
      if type(v) == "table" then
        find_funcs(v, ident(k))
      elseif type(v) == "function" then
        table.insert(funcs, ident(k) .. "()")
      end
    end
  end
end

find_funcs(vim, "vim")
table.sort(funcs)
vim.cmd.tabnew()
vim.api.nvim_buf_set_lines(0, 0, -1, true, funcs)