| line | !l | l&&!r | l&&r | condition | 
 
| 65 | 17 | 28 | 0 | defined $page->{'lefts'} and $XBase::Index::DEBUG | 
 
| 160 | 6 | 6 | 141 | not defined $page->{'last_key_is_just_overflow'} and defined $backleft | 
 
|  | 12 | 38 | 103 | not defined $page->{'last_key_is_just_overflow'} and defined $backleft and defined $backval | 
 
| 297 | 0 | 5 | 0 | defined $foundvalue and $foundkey eq $key | 
 
|  | 5 | 0 | 0 | defined $foundvalue and $foundkey eq $key and $foundvalue == $value | 
 
| 312 | 0 | 5 | 0 | defined $foundvalue and $foundkey eq $key | 
 
|  | 5 | 0 | 0 | defined $foundvalue and $foundkey eq $key and $foundvalue == $value | 
 
| 441 | 132 | 10 | 5 | $i == 0 and defined $left | 
 
| 454 | 12 | 0 | 0 | defined $parent->{'last_key_is_just_overflow'} and $parent->{'lefts'}[$#{$$parent{'lefts'};}] == $num | 
 
| 489 | 0 | 1 | 0 | $self->{'signature'} != 3 and $self->{'signature'} != 6 | 
 
| 570 | 60 | 8 | 1 | $i == 0 and defined $left | 
 
| 783 | 15 | 3 | 1 | $i == 0 and defined $left | 
 
| 1144 | 0 | 0 | 0 | $numdate == 2 and $key | 
 
| 1177 | 0 | 0 | 0 | $numdate == 2 and $key | 
 
| 1217 | 0 | 0 | 0 | not defined $indexfile and ref $class | 
 
| 1469 | 0 | 0 | 0 | defined $q and defined $indexfile->{'pages_cache'}{$q} |