in reply to stumped on a complex data structure

Input:

use strict;
use warnings;

my %HoA = (
   0 => [ split(/\n/, <<'__EOI__') ],
1;;;;;;;
;;;;;;;;
;;;;;;;;
;;LINE;;SVC;LINE;ACCT;VIEW;
__EOI__

   1 => [ split(/\n/, <<'__EOI__') ],
1;;
;;;
;;;
;LINE;;
__EOI__

   2 => [ split(/\n/, <<'__EOI__') ],
1;;;;;
;;;;;;
;;;LAST;;;
;UPDT;SRCE;UPDT;UPDT;WORK;
__EOI__
);

local *FILE = *STDOUT;

[download]

Code:

my @keys = sort keys %HoA;
my $num_elements = @{$HoA{$keys[0]}};
for (my $i=0; $i<$num_elements; $i++) {
   print FILE join('', map { $HoA{$_}[$i] } @keys), $/;
}

[download]

Output:

1;;;;;;;1;;1;;;;;
;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;LAST;;;
;;LINE;;SVC;LINE;ACCT;VIEW;;LINE;;;UPDT;SRCE;UPDT;UPDT;WORK;

[download]

MapCar and MapCarU from Algorithm::Loops could be used as an alternative, but it would be overkill.

In Section Seekers of Perl Wisdom