GrandFather, minor quibble. Take the output section and change it to: 

my @results = map {
    [$_ => domatch($_, $r)]
} @strings;

#foreach my $str (@strings) {
foreach my $r (@results) {
    my ($str, $result) = @$r;
    print "Matching on $str\n";
    #my $result = domatch($str,$r);
    if ($result) {
        print "Result:\n";
        foreach my $k (keys %{$result}) {
            print "\t$k => $result->{$k}\n";
        }
    } else {
        print "No match.\n";
    }
}

[download]
And notice it stop working. Well, notice it give the last result for all the matches. Now change your code to return { %mv } if keys %mv != 0 and notice it start working again.

It is bizarre ... and I'm hoping someone more familiar with the regexp engine internals will pipe up as to why this isn't DWIMming very well. I tried a number of different changes to try to get the engine to think I was doing another match, but failed, perhaps someone else will see what we're missing. In this way, I wouldn't (yet) call what you did a "fix" but more of a "workaround" ;-)

In reply to Re^2: regex eval capture weirdness by Tanktalus
in thread regex eval capture weirdness by bytex64

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