# File mod_docs/erb.rb, line 97
  def new(safe_level, pass_auth)
    case (safe_level)
    when '1', '2', '3', '4', '0'
      s = safe_level.to_i
    else
      raise "unknown safe level: #{safe_level.inspect}"
    end
    ERBFilter.new(s, pass_auth)
  end