[kw-pm] neat permutations trick..

[Daniel R. Allen]

Sure.  Say you have two sets of variables (a,b,c) and (1,2,3).  What's the
simplest way to expand that into all permutations in perl?...

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On Thu, 19 Feb 2004, Andrew Kohlsmith wrote:

> > When I tried this in the meeting, I could've sworn I'd tried the same
> > parameters, but anyway, both of these work; they are un-documented
> > features of perl's filename expansions, that don't actually require any
> > files to match, but return a valid array.  Courtesy toronto.pm:
>
> [ snipped ]
>
> Could we have that again please, perhaps in English?  I'm having trouble
> seeing the utility.
>
> Regards,
> Andrew
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