>>   On the other hand using different encodings for a language within one
>>   document is somewhat perverse.  So it would be reasonable to have per
>>   document defaults.
>
>Yes, but these defaults should depend on the language.

No - they depends on the system. A Mac file is the same in Spain
and France. A Linux file is the same in Spain and France. But a
Spanish file is not the same in Mac and Linux.

\bye
Javier