SM wrote:
>> It merely means IETF documents MUST BE internationally legible,
>> that is, pure ASCII.
> Actually no, the text does not refer to IETF documents.
Then, it depends on scope of the document and whether you need
bi-directional communication or not (here after, bi-directional
communication is assumed).
If your scope is limited within UK, FR and DE, Latin-1 could
be usable, within Europe (including countries using European
languages/characters), unicode could be.
But, if your scope includes CN and JP, unicode is useless for
plain text communication but ISO-2022-JP-2 could be usable.
If you need really international scope, pure ASCII is the only
choice.
Masataka Ohta
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