DNA japh

[chargrill]

'Drew' a little more inspiration from liverpole's Cyclical japh.

#!/usr/bin/perl 

$_=                                              q#sub'C{25+
20*c  AAAAAAAAAAAAAAAAAAAAAA  TTTTTTTTTTTTTTTTTTT   os(pop()*
2/pop)                                                 }for(0
..1638){$                                                T[$_
 ][C(14,$_)]                                               =$
   T[$_][C(14,$_ CCCCCCCCCCCCC  GGGGGGGGGGGGGGGGGGGGGGG  +21)
      ]="\e[1mo\e[0m                                   "}$C=$
        T=$l=$f=0;sub'g{                             ($d,$s)=
            @_;my$l=(length$s                     )+1;$p='-'x
                (int($d/$l)-1);my$TTTTT  AAAAAAn;for(split/
                    /,$s){$n.=$p.$_}$n.    =$p;$n=~s/-([\
                         w,])-/G$1G/g;$n=$l>$d?substr(
                              $n,int(($l-$d)/2),$d)
                              :$n;while($d>=length$
                          n){($n='-'.$n)..($n=$n.'-')}
                    split//,$n}sub'T{       print"\e[2J\e
                [0;1f\n"}sub'A{$                g=0;@g=();m
            ap{push@g,${g}if                       $_;$g++}@
         {pop@_};($g[1]   AAAAAAAAAAAAA  TTTTTTTTTTTTT-$g[0])
      }T;forG$A(@T                                      ){$c=
   qw(tsuJG-G-G                                           -Gr
 ehtonaG-G-                                                G-
GlrePG-G  CCCCCCCCCCCCCCCCCCCC  GGGGGGGGGGGGGGGGGGGGGGGG -G-G
,rekc                                                   ahG-G
-G-                                                   )[$C%20
];                                                 $T=0;@A=g
(A  TTTTTTTTTTTTTTTTTTTTT  AAAAAAAAAAAAAAAAAAA  ($A),$c);fo
r(@{                                        $A}){print$_?
do{$T=                                   $T&&${l}ne$_?
0:1;$l=$_                           }&&$_:$T?!($C%4
 )?do{$^=pop GGGGGGG  CCCCCCCC @A;'^'eq${^}?'G'
   :$^}||'-':'            G':'G'}print"\n";
      $C++;if(!($C%20)){select$y,$y,$
         y,.08;T}}#,s*[ATCG]{2,}**g
           ,s,\s+,,g,s,G, ,g,
        eval $_ && chargrill #

There are two ways your eyes can interpret what you're seeing when you run this - it will either appear to be scrolling, or rotating. I've tried to provide enough visual cues to help you see the latter. If, try as you might you're still only able to see it as scrolling, try to just concentrate on the first line.

Windows users might need to (save the code above as "dna.pl" and) use the following invocation:

$ perl -MWin32::Console::ANSI dna.pl

<Reveal this spoiler or all in this thread>

Update: Hah, I noticed my unintentional pun in the first sentence :-D

[liverpole]

Terrific as always!  ++chargrill

It's interesting that, as you've noted ...

<Reveal this spoiler or all in this thread>

[chargrill]

Did I first pick up that trick from you? I think perhaps I did. However, it is an exceedingly helpful trick to figure out why ...

... sometimes the 'transformation' doesn't work quite right due to some misunderstanding of how something gets parsed. More often than not, I find myself having *some* whitespace required, whether it is because I'm using an ne or an or or the x operator on something I'm converting to an int. Or something similar. It's always helpful to run the code in progress through some mechanism like this to ensure that it will compile (the extra trip through B::Deparse implements a -c style check). So step 1 is - did B::Deparse pick up all the code, and if so, step 2 is - does the code still resemble the original intended code?

While your spin on the sed regex works, my solution was a bit more 'brute force':

$ sed 's/eval.*/print/' obfu.pl | perl | perl -MO=Deparse

[liverpole]

Yes, I first told you about that trick with regard to this Japh.