a while ago I've seen a post on the FTB reddit page about using computercraft together with the trading post from extra utilities
to be more precise, it was this post http://www.reddit.com/r/feedthebeast/comments/1ydhhq/i_see_your_emerald_farms_and_really_they_are_cute/

what you see is a computer using the trading post as a peripheral, and automatically trades with the villagers for emeralds and quartz.
to get the trades that the creator wants, I'm guessing he's using the MFR spawner to spawn the same extra villager over and over

now I was wondering if someone could help me with the code for this. as I'm really terrible at coding, but having a program like this would be really helpful.
I'd want to have the computer trade with villagers offering emeralds for the basic things, like wheat and meat.
I don't know if it'd be possible to actually have the program be able to get an input from which trades it should respond to, but that would ofcourse be awesome if it'd be possible