On 05/04/2010 03:11 AM, Marc Herbert wrote: > 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.
Except that in computing tab completion, side effects are _all_ that you want - basically, Freddie's problem is how to populate the global completion variables from within helper functions. > Of course whenever "blackbox" returns only one value the whole thing > can be much simpler, just: b=$(blackbox) Except that it forks a subshell and consumes trailing newlines, and the whole point of this exercise is to avoid forks and spurious corruption of trailing newlines. -- Eric Blake ebl...@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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