#!/usr/bin/perl
#HTML version
use strict;use warnings;
use ArrayRef2HTMLTree;
my $t=[
    [
         [[[[["a", "b"], "c"], ["d", "e"]], [[["f", "g"], "h"], [["i", "j"], ["k", ["l", "m"]]]]],
                    ["n", [[["o", "p"], "q"], ["r", "s"]]]], ["t", ["u", "v"]]
                        ],
                            [["w", ["x", "y"]], "z"]
    ];

my $ht = ArrayRef2HTMLTree->new(font_size=>'8pt',line_height=>'10px');
print $ht->to_html($t);