[NTG-context] Basic question on Unicode and ConTeXt

[Steffen Wolfrum]

Hi,

now and then I saw threads on this list dealing with specific 
problems of using various languages with utf-8 input in ConTeXt 
(processing with pdftex, NOT xetex).

I know there is \enableregime[utf]
but what else I needed that the output equals my utf-8 input?

Could some maybe give a short and usable How-To on common examples:
Greek
Russian
an East European language
and an Asian language?

(If the platform makes a difference, I'd be interested in OSX.)

Thank you,

Steffen