tybalt89++
I'd like to understand it.. ;=)
Is this a lex parser as noted in perlre ?
It just support the test cases? or can be extended to support more regex operators?
I was trying a raw approach but when i saw your i gave up.
Brilliant regex hacker!
UPDATE: my attempt with the simplicistic data sample proposed in OP (show representative data as corollary to Know your data principle), was something like:
use strict;
use warnings;
while(<DATA>){
chomp;
my $rx;
eval{ $rx = qr($_) };
if($@){print "-->$_<-- INVALID: ",lc $@=~s/$0 line \d+,//r; next
+}
print "$rx\t=>\t";
s/[\(\)]//g;
foreach my $part (split /\|/){
if ($part=~/(\d+)?\[\d+\]/){
print join ' ', grep{/$rx/}$1.0 .. $1.9;
print ' ';
}
else{print "$part "}
}
print "\n";
}
__DATA__
(65|70)
(3999[678]|4[1678])
5[45]
(6[4569]|7[01])
(((broken
(65|70)
# out
(?^:(65|70)) => 65 70
(?^:(3999[678]|4[1678])) => 39996 39997 39998 41 46 47 48
(?^:5[45]) => 54 55
(?^:(6[4569]|7[01])) => 64 65 66 69 70 71
-->(((broken<-- INVALID: unmatched ( in regex; marked by <-- here in m
+/((( <-- here broken/ at <data> line 5.
(?^:(65|70)) => 65 70
L*
There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.
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