flag_list

# File lib/net/imap.rb, line 2870
      def flag_list
        if @str.index(/\(([^)]*)\)/ni, @pos)
          @pos = $~.end(0)
          return $1.scan(FLAG_REGEXP).collect { |flag, atom|
            atom || flag.capitalize.intern
          }
        else
          parse_error("invalid flag list")
        end
      end