I like to use this syntax to capture from regular expresions. 
        if (my ($a, $b) = ("$key$val" =~ /(..)(...)/)) {
            $hash2{$a} = $b;
        }

[download]
#!/usr/bin/perl
use Test::More "no_plan";
use Devel::Size "total_size";

my $key = "aa";
my $val = "a00";
my %hash1;
my %hash2;
while (length($key) == 2) {
        $hash1{$key} = $val;
        if (my ($a, $b) = ("$key$val" =~ /(..)(...)/)) {
            $hash2{$a} = $b;
        }

        ++$key;
        ++$val;
}

is(keys(%hash1), keys(%hash2), "same number of keys");
is_deeply(\%hash1, \%hash2, "is_deeply same");
is(total_size(\%hash1), total_size(\%hash2));
__END__
ok 1 - same number of keys
ok 2 - is_deeply same
ok 3

[download]
-- gam3
A picture is worth a thousand words, but takes 200K.

In reply to Re: $1, etc. are not just strings by gam3
in thread $1, etc. are not just strings by ysth

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