| line | !l | l&&!r | l&&r | condition | 
 
| 194 | 0 | 0 | 3 | $r->method eq 'GET' and not defined $r->header('If-Modified-Since') | 
 
|  | 0 | 0 | 3 | $r->method eq 'GET' and not defined $r->header('If-Modified-Since') and not defined $content_cb | 
 
| 236 | 1 | 1 | 1 | defined $meta->{'X-HCT-LastUpdated'} and $noupdate > time - $meta->{'X-HCT-LastUpdated'} | 
 
| 255 | 1 | 0 | 0 | defined $meta->{'X-HCT-LastUpdated'} and not &{$approvecontent;}($res) | 
 
| 289 | 1 | 0 | 0 | defined $meta->{'MD5'} and md5_hex($content) eq $meta->{'MD5'} | 
 
| 426 | 1 | 0 | 1 | defined $basepath and -d $basepath | 
 
| 439 | 0 | 1 | 0 | defined $age and $age * 24 > $maxage |