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  1. or download this
    sub count_separators {
        my $value = shift;
    ...
      
        return eval 'sub { return shift =~ tr/' . $set . '//; }';
    }
    
  2. or download this
    sub count_separators {
        my $value = shift;
    ...
      
        return eval 'sub { return shift =~ tr/' . $set . '//; }';
    }
    
  3. or download this
    sub count_separators {
        my $value = shift;
    ...
        $delim eq '"' and return $value =~ tr["][]; #";
        die;
    }