# File lib/termtter/system_extensions/windows.rb, line 10
  def readline(*a)
    str = old_readline(*a)
    out = ''
    loop do
      begin
        out << $iconv_sj_to_u8.iconv(str)
        break
      rescue Iconv::Failure
        out << "#{$!.success}?"
        str = $!.failed[1..-1]
      end
    end
    return out
  end