# File lib/kramdown/document.rb, line 35
  def self.data_dir
    unless defined?(@@data_dir)
      require 'rbconfig'
      @@data_dir = File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'data', 'kramdown'))
      @@data_dir = File.expand_path(File.join(Config::CONFIG["datadir"], "kramdown")) if !File.exists?(@@data_dir)
      raise "kramdown data directory not found! This is a bug, please report it!" unless File.directory?(@@data_dir)
    end
    @@data_dir
  end