El Aug 3, 2007, a las 1:45 PM, Mr. Shawn H. Corey escribió:
But the expression $hash{"@cdr[2,3,6,7]"} is the same as $hash{join
($",@cdr[2,3,6,7])} You have just replaced one special variable
with another and $" is a bad choice since it's default is a space
character, which may easily appear in one (or all) of @cdr[2,3,6,7]
A better choice is $hash{$cdr[2]}{$cdr[3]}{$cdr[6]}{$cdr[7]} but
you would need four for-loops to get to the value.
To be able to use arrays as keys there are a couple of modules out
there. One is mine, based on pack/unpack :
http://search.cpan.org/~fxn/Hash-MultiKey-0.06/MultiKey.pm
and there's another one that is implemented as nested hashes, but I
can't remember its name right now, does anybody know it?
-- fxn
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