bigger is better

[iamcal]

not as confusing as it could be, but still a little difficult to guess what's going on

#!/usr/bin/perl -w
use strict;

$_="Just another Perl hacker";

my@x=(65,14,17,31,17,17,74,31,4,4,4,24,85,17,17,17,
17,14,83,15,16,14,1,30,84,31,4,4,4,4,78,17,25,21,19
,17,79,14,17,17,17,14,72,17,17,31,17,17,69,31,16,30
,16,31,82,30,17,30,18,17,80,30,17,30,16,16,76,16,16
,16,16,31,67,14,17,16,17,14,75,17,18,28,18,17);my%x
;while (my$x=shift@x) {$x{chr($x)}=[shift@x,shift@x,
shift @x,shift @x,shift @x];}sub c{my @e=split//,uc(
shift);my@ee;for(@e){my@ret=&a($_);$ee[$_].=$ret[$_]
for 0..4;}print join("\n",@ee)."\n\n";}sub a{my@d;my
($e)=@_;push@d,b($e,$_)for(@{$x{$e}});return@d;} sub
b{my($f,$e,$d)=@_;for(0..4){if($e>(2**(4- $_))-1){$e
-=(2**(4-$_));$d.=$f;}else{$d.=' ';}};return$d.' ';}
c($_)for split/\s/;

[Aristotle]

(Precalculations done and removed from the code; functions assimilated to where they're used; variables renamed.)

#!/usr/bin/perl -w use strict; $_ = "Just another Perl hacker"; my %bitmap = ( A => [ 0b01110, 0b10001, 0b11111, 0b10001, 0b10001, ], C => [ 0b01110, 0b10001, 0b10000, 0b10001, 0b01110, ], E => [ 0b11111, 0b10000, 0b11110, 0b10000, 0b11111, ], H => [ 0b10001, 0b10001, 0b11111, 0b10001, 0b10001, ], J => [ 0b11111, 0b00100, 0b00100, 0b00100, 0b11000, ], K => [ 0b10001, 0b10010, 0b11100, 0b10010, 0b10001, ], L => [ 0b10000, 0b10000, 0b10000, 0b10000, 0b11111, ], N => [ 0b10001, 0b11001, 0b10101, 0b10011, 0b10001, ], O => [ 0b01110, 0b10001, 0b10001, 0b10001, 0b01110, ], P => [ 0b11110, 0b10001, 0b11110, 0b10000, 0b10000, ], R => [ 0b11110, 0b10001, 0b11110, 0b10010, 0b10001, ], S => [ 0b01111, 0b10000, 0b01110, 0b00001, 0b11110, ], T => [ 0b11111, 0b00100, 0b00100, 0b00100, 0b00100, ], U => [ 0b10001, 0b10001, 0b10001, 0b10001, 0b01110, ], ); for (split /\s/, uc) { my @ee; for my $char (/./g) { my @rastered = map { my $bitrow = $_; my $pixrow; for (16, 8, 4, 2, 1) { if ($bitrow > $_ - 1) { $bitrow -= $_; $pixrow .= $char; } else { $pixrow .= ' '; } } $pixrow . ' '; } @{ $bitmap{$char} }; $ee[$_] .= $rastered[$_] for 0 .. 4; } print join ("\n", @ee) . "\n\n"; }

Not very obfuscated per se; the translation was mostly straightforward, mechanical work.

Makeshifts last the longest.