G'day Dr Manhattan,

You were almost there. You need to push an arrayref (not an array) of the split characters. Here's my test: 

#!/usr/bin/env perl

use strict;
use warnings;

use Data::Dumper;

my @MainArray;

while (<DATA>) {
    chomp;
    push @MainArray, [ split // ];
}

print Dumper \@MainArray;
 
__DATA__
Hello
my
name
is
Jack

[download]

Output:

$ pm_file_chars_to_AoA.pl
$VAR1 = [
          [
            'H',
            'e',
            'l',
            'l',
            'o'
          ],
          [
            'm',
            'y'
          ],
          [
            'n',
            'a',
            'm',
            'e'
          ],
          [
            'i',
            's'
          ],
          [
            'J',
            'a',
            'c',
            'k'
          ]
        ];

[download]

See also: perldsc - Perl Data Structures Cookbook

-- Ken

In reply to Re: Parse txt file into array of array by kcott
in thread Parse txt file into array of array by Dr Manhattan

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