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")
