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(tye)Re2: 177- (Golf) LED Sign

by tye (Sage)
on Jun 08, 2001 at 18:39 UTC ( #86914=note: print w/replies, xml ) Need Help??


in reply to (tye)Re: 186- (Golf) LED Sign
in thread (Golf) LED Sign

I figured out a way to drop the 8-char binary string to a 5-char binary string and simplify some of the math. Unfortunately, the simpler math uses + instead of | so the precedence is wrong so I'd need two sets of parens, which makes the math expression 2 characters longer (despite the calculation being simpler). That would still be an over-all net reduction by one character. But that involves recomputing all of the bits, so I'm not including that trick.

But some standard golfing on the rest did get me down to 177 (updated from 179) chars:

#!/usr/bin/perl open SEG, ">segment.pl" or die "Can't write seg.pl: $!\n"; binmode SEG; while(<DATA>){ s/::::::::/pack"H*",'1f10001100100111'/e; s/!!!!!!!!!!!!!!!/pack"H*",'fca88a04228f12420caacc30125084'/e; print SEG $_; } __END__ #!/usr/bin/perl sub d{ y/01/ #/for@p=unpack"b5"x8,"::::::::";@s=grep$_,split/(..)/, unpack"b*",'!!!!!!!!!!!!!!!';map{$l=$_;join($",map{y/-./ab/; $p[4&$l*4|3&$s[$l+5*hex]]}split//,$_[0]).$/}0,1,1,2,3,3,4 } print d("123-45"); print d("67.890");

        - tye (but my friends call me "Tye")

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[Tux]: None work for me. My dead key is AltGr (right Alt)
[Tux]: And I just tested, neither do other Tk apps :) (95% of my Tk Apps is either just monitoring (no input) or input of just numbers). Something to investigate then
[choroba]: Maybe something like this?
[choroba]: I vaguely remember we had problems with dead keys in Tk at $work - 2, but I forgot all the details
[choroba]: but it was worse on MSWin than on Linux
[choroba]: (and OSX didn't exist yet)

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