PROBLEM
I am trying to display a report with the use of hashes.
I am pulling in data from a flat-file which has customer
records that have a Fiscal Year date and trying to match it with some dates to get a combined result.

DESCRIPTION
Lets say my hash looks like this after i set it up:

%HoH = (
        cat => {
                'FY2003-Q2' => {
                        'this is the customers data => '1'
                        },
                'FY2003-Q4' => {
                        'this is the customers data => '1'
                        },
                'FY2004-Q1' => {
                        'this is the customers data => '1'
                        },
                'FY2004-Q2' => {
                        'this is the customers data => '1'
                        },
        },
        dog => {
                'FY2003-Q2' => {
                        'this is the customers data => '1'
                        },
                'FY2003-Q1' => {
                        'blah blah blah' => '1'
                },

        },
        catdog => {
                'FY2004-Q1' => {
                        'blah blah blah' => '1'
                },
                'FY2004-Q2' => {
                        'blah blah blah' => '1'
                }
        }
);
[download]

Now one of my subs takes the current date and gives me the next four quarters and i use these 5 dates to sort my data like:

my %date_slots = (
        1 => FY2003-Q2,
        2 => FY2003-Q3,
        3 => FY2003-Q4,
        4 => FY2004-Q1,
        5 => FY2004-Q2
);
[download]

Now once i got all my data and dates setup i have to print the them out. so far so good.
BUT for those dates that i dont have anything i have to print "no data". See here:

foreach $customer (keys %HoH) {
        print "$customer\n";
        foreach $date (keys %{$HoH{$customer}} ) {
                print "\t\t$date";
                foreach my $data (keys %{$cal{$customer}{$date}} ) {
                        print " = $data\n";
                }
        }
}
[download]

This prints what ever is in my HoH hash.

cat
        FY2003-Q2 = blah blah blah
        FY2003-Q4 = blah blah blah
        FY2004-Q1 = blah blah blah
        FY2004-Q2 = blah blah blah
dog
        FY2003-Q1 = blah blah blah
        FY2003-Q2 = blah blah blah
catdog
        FY2004-Q1 = blah blah blah
        FY2004-Q2 = blah blah blah
[download]

But my goal is to take the %date_slots hash and match my HoH data
with it if no match then print "no data". something like:

cat
        FY2003-Q2 = blah blah blah
        FY2003-Q3 = no data
        FY2003-Q4 = blah blah blah
        FY2004-Q1 = blah blah blah
        FY2004-Q2 = blah blah blah
dog
        FY2003-Q2 = blah blah blah
        FY2003-Q3 = no data
        FY2003-Q4 = no data
        FY2004-Q1 = no data
        FY2004-Q2 = no data
catdog
        FY2003-Q2 = no data
        FY2003-Q3 = no data
        FY2003-Q4 = no data
        FY2004-Q1 = blah blah blah
        FY2004-Q2 = blah blah blah
[download]

Sorry for the lousy explanation, and thanks for your help.

"Learning is a treasure
that will follow its owner everywhere."
-Chinese proverb

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