Greetings fellow monks,

I find myself in a situation where I have a data set that's well represented by a Graph. Knowing that CPAN has Graph, I use it. I now want to traverse the graph, but I'm finding the results are not what I expect. Here's a test script: 

use strict;
use warnings;

use Graph;
use Graph::Traversal::DFS;

my $graph = Graph->new();
$graph->add_edges( ['A','B'], ['B','C'], ['C','D'], ['D','E'], 
                   ['A','b'], ['b','c'], ['c','d'], ['d','e']);

my $trav = Graph::Traversal::DFS->new($graph);
print join("\n", $trav->dfs());
__END__
E
D
e
d
c
b
C
B
A

[download]
I realize that the algorithm is non-deterministic, but it should at least return the correct result. I'd expect that it'd print 'A' and then all the capital letters followed by all the lower-case letters, or vice versa. The docs are unusually sparse. Am I missing something here?

thor

Feel the white light, the light within
Be your own disciple, fan the sparks of will
For all of us waiting, your kingdom will come

In reply to How do I use Graph::Traversal? by thor

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