What you've done in your code is create an array with each element only one character in length, so when you use ~~ smartmatch against the array, you're only testing against a substring of a single character.

If I understand what you're attempting to do, this code may help get you on your way:

#!/usr/bin/perl
use warnings;
use strict;

my $str = 'abcdefghijkl';
my %match = (ab => 0, abcd => 0, xyz => 0,);

for my $key (keys %match){
    if ($str =~ /$key/){
        $match{$key}++;
    }
    else {
        print "$key not found in $str\n";
    }
}

for my $k (keys %match){
    print "key: $k value: $match{$k}\n";
}

[download]

-stevieb

In reply to Re: find a substring of unknow lenght if it is in a hash by stevieb
in thread find a substring of unknow lenght if it is in a hash by perlynewby

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