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Re: bigger japh

by ambrus (Abbot)
on Jul 27, 2006 at 01:41 UTC ( #563935=note: print w/replies, xml ) Need Help??

in reply to bigger japh

Nice. I tried LZ77 compression (see LZ77 compression, a poem) on the output of this japh as well to see how short I can make it. I've got this.

$_=v10.10;{$_.=substr($_,3135-&j-94*&j,&j-33).chr&j;redo} sub j{<<'!'=~/./g||exit!print;ord$&} #!! "!" $!"|&!% &!& 1!#:/!. :!/|R!(|X!'.b!!-c!!,b!"-f!!+&!"-b!&.)!#:m! +#. 4!".9!%.z!#-:!%|>!#.;!%.y!#.I!#,`!/\A"._"!"|N"%|~!)|(!( c""_<!":="%:=" +, ]!%||"(|V"(|\!3 x"''~!#'3"$_V#!/&!& [##''!& :!%|0"(\:!*|y#%'S"#,U#"|)$ +' )$-':", B$,|e"$.T#/ e"*-l#':#$'|B$$ {#-|]$'_N#% =%-|H%&_"$''p#$/Y%$_u# +'| 5##.;##'k"& *%%|$%$ D$)'W$%'>!'\N#&,5&%-]%!.1"' 2&9 K&9/Z!X S'" !
It is only a few characters longer than your original code.

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Re^2: bigger japh
by SubStack (Monk) on Jul 27, 2006 at 14:45 UTC
    Very cool. Here's the script I used to generate the constant for the japh, although it's not too much more clear than the japh itself.
    #!/usr/bin/perl my $file = <STDIN>; my %chars; $chars{$_}++ for split //, $file; my @set = sort { ord $a <=> ord $b } keys %chars; my $set = quotemeta join "", @set; $file =~ eval "\$file =~ tr($set)(a-z)"; $file =~ s/($_{2,})/$_ . length $1/eg for "a".."z"; print "set=$set (@{[map ord, @set]})\n$file";
    Basically, each of the characters used in the japh (pipes and dots and slashes and such) is translated to a letter. Next, for every string of duplicate characters is shortened to the letter and the number of characters it should be expanded to, so "aaaaaa" becomes "a6". There's probably an official name for this technique someplace.

      There's probably an official name for this technique someplace.

      Run Length Encoding


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