Re^6: Regex troubles...

If I put the for-loop back into the unrolled loop code, I start to see weird stuff again (still Strawberry 5.14.4.1):

c:\@Work\Perl\monks>perl -wMstrict -le
"for my $string (qw(ab1b2b3b4d  ab5b6b7d  ab8b9d abxd ad)) {
   my @two;
   my @matches = $string =~ /(a)
                             (?: (b.) (?{ push @two, $2 }))+
                             (d)/x;
   print qq{'$string' -> all:(@matches) -> 2:(@two)};
   }
"
'ab1b2b3b4d' -> all:(a b4 d) -> 2:(b1 b2 b3 b4)
'ab5b6b7d' -> all:(a b7 d) -> 2:()
'ab8b9d' -> all:(a b9 d) -> 2:()
'abxd' -> all:(a bx d) -> 2:()
'ad' -> all:() -> 2:()
[download]

What Perl version are you using?

Give a man a fish: <%-{-{-{-<

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Re^7: Regex troubles... by choroba (Cardinal) on Apr 23, 2016 at 20:32 UTC
Probably related to the changes in perl 5.18. ($q=q:Sq=~/;[c](.)(.)/;chr(-\|\|-\|5+lengthSq)`"S\|oS2"`map{chr \|+ord }map{substrSq`S_+\|`\|}3E\|-\|`7**2-3:)=~y+S\|`+$1,++print+eval$q,q,a, [download]	[reply] [d/l]
Re^8: Regex troubles... by AnomalousMonk (Archbishop) on Apr 23, 2016 at 21:56 UTC
Indeed. Using a package global instead of a lexical makes everything right as rain: `c:\@Work\Perl\monks>perl -wMstrict -le "print qq{perl version: $]}; ;; for my $string (qw(ab1b2b3b4d ab5b6b7d ab8b9d abxd ad)) { local our @two; my @matches = $string =~ /(a) (?: (b.) (?{ push @two, $2 }))+ (d)/x; print qq{'$string' -> all:(@matches) -> 2:(@two)}; } " perl version: 5.014004 'ab1b2b3b4d' -> all:(a b4 d) -> 2:(b1 b2 b3 b4) 'ab5b6b7d' -> all:(a b7 d) -> 2:(b5 b6 b7) 'ab8b9d' -> all:(a b9 d) -> 2:(b8 b9) 'abxd' -> all:(a bx d) -> 2:(bx) 'ad' -> all:() -> 2:()` [download] (I should have realized...) Give a man a fish: `<%-{-{-{-<`	[reply] [d/l] [select]
Re^7: Regex troubles... by Anonymous Monk on Apr 23, 2016 at 20:20 UTC
`5.20.1` [download]	[reply] [d/l]
Re^7: Regex troubles... by Anonymous Monk on Apr 23, 2016 at 20:29 UTC
Try putting it in a file and running from there. Personally I would not trust Window's shell quoting.	[reply]