Monks,

I have a somewhat complex data structure that I want to convert to another somewhat complex data structure. I have already figure out how to do it, in the long non-Perl unlazy way. However, I think there must be some faster way that escapes me. It might be using map, which I still don't really understand (hence I didn't use it here). So without further ado, here goes...the data structures: 

# Current data structure
$ADDRESS{Last1,First1}{Account} = ""; # Blank
$ADDRESS{Last1,First1}{First} = "First1";
$ADDRESS{Last1,First1}{Last} = "Last1";
$ADDRESS{Last1,First1}{Address} = "123 Home St";
$ADDRESS{Last1,First1}{Phone} = "(222) 333-4444";
$ADDRESS{Last1,First1}{Email} = "flast1@this.com";
$ADDRESS{Last1,First1}{Description} = "This\nThat\n";
$ADDRESS{Last2,First2}{First} = "First2";
...
$ADDRESS{Last999,First999}{Account} = ""; # Blank
$ADDRESS{Last999,First999}{First} = "First999";

# Desired data structure
$ADDRESS[0][0] = ""; # Blank
$ADDRESS[0][1] = "First1";
$ADDRESS[0][2] = "Last1";
$ADDRESS[0][3] = "123 Home St";
$ADDRESS[0][4] = "(222) 333-4444";
$ADDRESS[0][5] = "flast1@this.com";
$ADDRESS[0][6] = "This\nThat\n";
$ADDRESS[1][0] = ""; # Blank
$ADDRESS[1][1] = "First2";
...
$ADDRESS[998][0] = ""; # Blank
$ADDRESS[998][1] = "First999";
...

[download]

My current code maps everything the long way: 

my $count = 0;
foreach my $name (keys %ADDRESS) {
 $row[$count][0] = "";
 $row[$count][1] = $ADDRESS{$name}{First};
 $row[$count][2] = $ADDRESS{$name}{Last};
 $row[$count][3] = $ADDRESS{$name}{Address};
 $row[$count][4] = $ADDRESS{$name}{Phone};
 $row[$count][5] = $ADDRESS{$name}{Email};
 $row[$count][6] = $ADDRESS{$name}{Description};
 $count++;
}

[download]

There must be a prettier/easier/more Perlish way of doing this. The ultimate goal is to get it to be an AoA because I have an existing script that enters data into an SQL database using the AoA structure used above. Aside from using ORM in the future, any thoughts?

In reply to Converting a HoH to an AoA by madbombX

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