Re: [FWP] Shortening

["Keith Calvert Ivey" <kcivey@cpcug.org>]

Using Robin's change at the start and omitting most of the dollar signs 
(to be restored later with a regex), I've reduced it from the original 
526 (http://www.cs.cmu.edu/~dst/DeCSS/Gallery/qrpff.pl) to 503 bytes:

$_='$/=\2048;while(<STDIN>){$a=29;c=142;if((@a=unx"C*",_)[20]&48){h=5;
_=unxb24,join"",@b=map{xB8,unxb8,chr(_^$a[--h+84])}@ARGV;s/...$/1$&/;d=
unxV,xb25,_;$b=73;e=256|(ord$b[4])<<9|ord$b[3];d=d>>8^(f=(t=255)&(d
>>12^d>>4^d^d/8))<<17,e=e>>8^(t&(g=(q=e>>14&7^e)^q*8^q<<6))<<9
,_=(map{_%16or+t^=c^=(m=(11,10,116,100,11,122,20,100)[_/16%8])&110;t
^=(72,@z=(64,72,$a^=12*(_%16-2?0:m&17)),$b^=_%64?12:0,@z)[_%8]}(16..271)
) [_]^((h>>=8)+=f+(~g&t))for@a[128..$#a]}print+x"C*",@a}';s/x/pack+/g;
s/\b[c-q_]\b/\$$&/g;eval

-- 
Keith C. Ivey <kcivey@cpcug.org>
Washington, DC

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