/usr/share/algotutor/DCEdge.pm is in algotutor 0.8.6-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | # Author: Chao-Kuei Hung
# For more info, including license, please see doc/index.html
package DCEdge;
# Edge in a Doubly-Connected Edge List
use strict;
use Carp;
use vars qw(@ISA);
@ISA = qw(Edge);
use Edge;
# sub new { my ($self) = shift; $self->SUPER::new(@_); }
sub phantomize {
my ($self) = @_;
$self->{"#is_phantom"} = 1;
$self->configure(-status=>"hidden");
}
sub is_phantom {
return $_[0]->{"#is_phantom"};
}
sub twin {
my ($self, $nv) = @_;
my ($r) = $self->{adj}{twin};
$self->{adj}{twin} = $nv if $#_ >= 1;
return $r;
}
sub prev {
my ($self, $nv) = @_;
my ($r) = $self->{adj}{prev};
$self->{adj}{prev} = $nv if $#_ >= 1;
return $r;
}
sub next {
my ($self, $nv) = @_;
my ($r) = $self->{adj}{next};
$self->{adj}{next} = $nv if $#_ >= 1;
return $r;
}
sub configure {
my ($self, %opts) = @_;
$self->SUPER::configure(%opts);
$self->twin()->SUPER::configure(%opts)
if (not $self->cget(-directed) and ref $self->twin());
}
$::Config->{DCEdge} = {
};
1;
|