installed_docs

# File lib/rdoc/servlet.rb, line 282
  def installed_docs
    extra_counter = 0
    ri_paths.map do |path, type|
      store = RDoc::Store.new path, type
      exists = File.exist? store.cache_path

      case type
      when :gem then
        gem_path = path[%/([^/]*)/ri$%, 1]
        [gem_path, "#{gem_path}/", exists, type, path]
      when :system then
        ['Ruby Documentation', 'ruby/', exists, type, path]
      when :site then
        ['Site Documentation', 'site/', exists, type, path]
      when :home then
        ['Home Documentation', 'home/', exists, type, path]
      when :extra then
        extra_counter += 1
        store.load_cache if exists
        title = store.title || "Extra Documentation"
        [title, "extra-#{extra_counter}/", exists, type, path]
      end
    end
  end