This is a very basic problem and I've tried many different ways to make this work. I've looked at
References quick reference by
tye, perlref and checked a few books, but can't find anything quite like my code.
This is the closest I have come, but I end up with a reference to an array instead of an array for @fields. I've used similar structures before but not exactly in this way:
use strict;
use warnings;
use Data::Dumper;
my @fields;
GetTables('ABC', \@fields);
print Dumper(\@fields);
sub GetTables {
my ($table_name, $aref) = @_;
my %tables = (
'ABC' => [ qw( f1 f2 f3)
],
'DEF' => [ 'f1', 'f2'
],
);
@$aref = $tables{$table_name};
## originally I had the following, but it didn't work
## $aref = $tables{$table_name};
print Dumper(\%tables, $aref);
}
The results look like this:
$VAR1 = {
'ABC' => [
'f1',
'f2',
'f3'
],
'DEF' => [
'f1',
'f2'
]
};
$VAR2 = [
$VAR1->{'ABC'}
];
$VAR1 = [
[
'f1',
'f2',
'f3'
]
];
The problem is, I want the last dump to be a plain array, which should look like the following:
$VAR1 = [
'f1',
'f2',
'f3'
];
Can someone please show me where I've gone astray? Thanks.
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