Le 01/05/2010 09:18, Freddy Vulto a écrit :
> I would like to call t(), and let it return me a filled variable by
> reference, that is without polluting the global environment.
I'd like to know why you absolutely want the callee to perform a
side-effect on the caller. This is your original sin
IMHO. Side-effects are evil, use as little of them as you can. Here is
a more functional approach:
blackbox() {
local a
printf '%s\n' "$1=bar1"
printf '%s\n' "$2=bar2"
}
f() {
local b c
# This eval is safe because we trust our own, simple blackbox
# function
eval $(blackbox b c)
echo $b; echo $c
}
Of course whenever "blackbox" returns only one value the whole thing
can be much simpler, just: b=$(blackbox)
