#!/usr/bin/perl -p
#
# Copyright (C) 1998, 2013 Roman Czyborra
#
# LICENSE:
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 2 of the License, or
#    (at your option) any later version.
#  
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
#    GNU General Public License for more details.
#  
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

use Getopt::Long;

sub unpack { 
	local ($_) = @_;
	$_ = unpack ("B*", pack ("H*", $_));
	$width=length($_)/$charheight;
	s/(.{$width})/\t$1\n/g;
	y/01/-#/;
	$_;
};

sub pack { 
	local ($_) = @_; 
	y/-#/01/;
	$_= unpack ("H*", pack ("B*", $_));
	y/a-f/A-F/;
	$_;
}

$result = GetOptions (
	"height|h=i" => \$charheight
);

if (not $charheight) {
	$charheight = 16;
} elsif (!($charheight == 16 || $charheight == 24 || $charheight == 32)) {
	die ("Invalid height\n");
}

s/([0-9A-F]{256})/&unpack($1)/ie ||
s/([0-9A-F]{192})/&unpack($1)/ie ||
s/([0-9A-F]{144})/&unpack($1)/ie ||
s/([0-9A-F]{128})/&unpack($1)/ie ||
s/([0-9A-F]{96})/&unpack($1)/ie ||
s/([0-9A-F]{64})/&unpack($1)/ie ||
s/([0-9A-F]{48})/&unpack($1)/ie ||
s/([0-9A-F]{32})/&unpack($1)/ie ||
s/\t([-#]+)\n/&pack($1)/e;