17   my $opentag = $config->{ moredata_opentag } or die "MoreData requires an open tag\n";

     32   my $substrings_aref = _retrieve_strings($str, $opentag, $closetag, $dataname) or die "cannot extract substrings from string\n";

     41   my $datasep_cfg = $config->{ moredata_datasep } or die "The data separation string must be configured\n";
     43   my $hashsep_cfg = $config->{ moredata_hashsep } or die "The hash separation string must be configured\n";