} elsif ($before < $class) {
$sigs->{$key}->{$uid}->{$1.$2} = $class;
};
} else {
$sigs->{$key}->{$uid}->{$1.$2} .= $class;
};
} elsif ($before < $class) {
$sigs->{$key}->{$uid}->{$1.$2} = $class;
};
} else {
$sigs->{$key}->{$uid}->{$1.$2} .= $class;
};