Re: [Standards] UPDATED: XEP-0171 (Language Translation)

[LRN]

Well, if sending user does not want to set message language (which is 
understandable, as it is awkward solution), then maybe receiving user 
will do that?
You can provide a way for user to set up translation for any of his 
contacts. I.e. define one (or more) languages that could be used by this 
contact.
Then translator can translate messages from all these languages to 
user-defined language.
User can define one or more languages he understands (with priorities; 
translator would also have it's own priority table to try to translate 
between more similar languages if possible; i.e. if i understand English 
and Russian, then translator will translate from German to English, 
because it's easier).
As i said, translator performs translation for all source languages and 
sends all translated text to user (this is arguable, though, since CPU 
time consumption and bandwidth consumption will increase significantly 
if there is more than one source language). User then can switch 
translations just as he would switch character encoding tables in 
browser: if text is unreadable, then he should try another translation. 
User's client may also use elements of AI to guess which translation is 
the best.
Sender may also specify which language he uses in his messages, but this 
is only a hint for translator.