question regarding maps

[Bill Anderson]

Ok, I have not delved too deep into the documentation, but i have yet to
fond what I am looking for (oh, for time to spare ;^).

I need to do something like(in auto.whatever):
if $HOST=$foo:  user    $HOST:/home/user
if $HOST!=$foo: user    $HOST:/auto/home/user

Is this possible for the current implementation (v3)?
If not, how difficult would it be to put it in for v4?


Thanks,

Bill Anderson