You can put the whole term in the look-ahead to make things a bit simpler and you could take advantage of the $scalar = () = $string =~ m{$pattern}g; idiom rather than successive incrementing, wrapping the whole thing in a map.

$ perl -Mstrict -wle '
> my $seq  = q{GGGGGGGAGAAAAAAAAAAAAAAAGAAGGA};
> my @pats = qw{ AAAAA GGGGG GGAGA GAAGG };
> my @cts  = map {
>    my $re = qr{(?=\Q$_\E)};
>    my $ct = () = $seq =~ m{$re}g;
>    } @pats;
> print qq{@cts};'
11 3 1 1
$

[download]

I hope this is of interest.

Cheers,

JohnGG

In reply to Re^2: Regex KungFu help needed by johngg
in thread Regex KungFu help needed by drblove27

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