| line | !l | l&&!r | l&&r | condition | 
 
| 89 | 9 | 27 | 12 | defined $_[0] and defined CORE::fileno $_[0] | 
 
| 373 | 5 | 43 | 9 | defined $input_record_separator and $self->{'filehandle_unget_buffer'} =~ /(.*?$input_record_separator)/ | 
 
| 393 | 0 | 5 | 0 | @other_lines and not defined $other_lines[0] | 
 
| 395 | 1 | 4 | 0 | $line eq '' and not @other_lines | 
 
| 410 | 1 | 40 | 2 | $line eq '' and not defined $templine | 
 
| 481 | 0 | 0 | 0 | $buffer_lines[0] eq '' and not defined $other_lines[0] | 
 
| 611 | 2 | 1 | 0 | $whence != 0 and $whence != 1 | 
 
|  | 3 | 0 | 0 | $whence != 0 and $whence != 1 and $whence != 2 |