$filter //= '*';
my $re = $do_glob ? glob2re($filter) : undef;
$re //= index($filter, '/') < 0 ?
qr!/\Q$filter\E/?\z! : # exact basename match
qr/\Q$filter\E/; # grep -F semantics
my @ext = externals_each($self, my $boost = {});
$filter //= '*';
my $re = $do_glob ? glob2re($filter) : undef;
$re //= index($filter, '/') < 0 ?
qr!/\Q$filter\E/?\z! : # exact basename match
qr/\Q$filter\E/; # grep -F semantics
my @ext = externals_each($self, my $boost = {});