Xavier Noria wrote:
In Perl data estructures can only store scalar values. That's why
references are used to emulate nested structures:
$hash{$key}[0] = [EMAIL PROTECTED]; # note that @s are arrays, not lists
$hash{$key}[1] = $string;
$hash{$key}[2] = \%hash;
There are some pages in the documentation about nested estructures,
have a glance at perldsc for instance.
An alternative would be:
$hash{$key}[0] = [ @array ];
and
$hash{$key}[2] = { %hash };
Here you are making a copy of the the array and hash. In the above, if
you change @array or %hash, then the contents of $hash{$key}[0] and
$hash{$key}[2] also change. It depends in what you want; sometimes you
want it one way, sometimes the other.
Also you could have written:
$hash{$key}[1] = \$string;
So that when $string changes, $hash{$key}[1] also changes.
--
Just my 0.00000002 million dollars worth,
--- Shawn
"Probability is now one. Any problems that are left are your own."
SS Heart of Gold, _The Hitchhiker's Guide to the Galaxy_
* Perl tutorials at http://perlmonks.org/?node=Tutorials
* A searchable perldoc is available at http://perldoc.perl.org/
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