Japanese and UTF8

[IIDA Yosiaki]

Werner Koch <wk@gnupg.org> writes:
>that in Tokyo and it boiled down to let the OS/libc do it.  Okay, how?

  The libc does have convert functions, but we need to
specify from which code and to which.
  Inside of OpenPGP is ALWAYS UTF-8 and we are happy.
Outside of OpenPGP may vary depending on environment.

  I see there are some options.

  * To assume outside is also UTF-8 and we don't convert at
    all.
  * To assume outside is also UTF-8, but we do convert from/to
    printable ASCII (with technique such as in RFC 2253).
  * To assume outside is always fixed charset, say
    ISO-2022-JP (or EUC-JP or whatever).
  * To assume that the charset is specified explicitly.
--
  iida