http://www.perlmonks.org?node_id=9973

My first Obfuscation:
#! /usr/bin/perl @k = unpack "a"x5,'x_,d@';@o = unpack "a"x24,'GY$]@^R ]-bV,9*oP,Q&`Oq[ +'; while ($i<24){print chr((ord($o[$i])-ord($k[$i++%5])+91)%91+32);}

Replies are listed 'Best First'.
RE: JAPH
by Adam (Vicar) on May 03, 2000 at 04:50 UTC
    Good use of unpack and ord, but watch out for things that generate warnings. Some people will disagree with me, but I think that even obfuscated code should avoid warnings:
    %perl -w japh.pl
    Use of uninitialized value at japh.pl line 3.
    Use of uninitialized value at japh.pl line 3.
    Just another Perl hacker
    
    BTW: the warning is from the $i in the while loop. If you add some garbage to shift your array (so that you can start from 1 instead of 0) you could preincrement $i just before your loop, or hide your initialization somewhere.Maybe monkey with $[