class Rack::Directory::DirectoryBody

to each file.
Body class for directory entries, showing an index page with links

def DIR_FILE_escape(htmls)

Escape each element in the array of html strings. 
def DIR_FILE_escape(htmls)
  htmls.map { |e| Utils.escape_html(e) }
end

def each

Yield strings for each part of the directory entry 
def each
  show_path = Utils.escape_html(path.sub(/^#{root}/, ''))
  yield(DIR_PAGE_HEADER % [ show_path, show_path ])
  unless path.chomp('/') == root
    yield(DIR_FILE % DIR_FILE_escape(files.call('..')))
  end
  Dir.foreach(path) do |basename|
    next if basename.start_with?('.')
    next unless f = files.call(basename)
    yield(DIR_FILE % DIR_FILE_escape(f))
  end
  yield(DIR_PAGE_FOOTER)
end