class Byebug::InfoCommand

def help(args)
  if args[1]
    subcmd = find(Subcommands, args[1])
    if subcmd
      str = subcmd.short_help + '.'
      if 'file' == subcmd.name and args[2]
        subsubcmd = find(InfoFileSubcommands, args[2])
        if subsubcmd
          str += "\nInvalid \"file\" attribute \"#{args[2]}\"."
        else
          str += "\n" + subsubcmd.short_help + '.'
        end
      else
        str += "\n" + subcmd.long_help if subcmd.long_help
      end
    else
      str = "Invalid \"info\" subcommand \"#{args[1]}\"."
    end
  else
    str = InfoCommand.description + format_subcmds(Subcommands)
  end
  print str
end