dfs package:topograph

dfs :: forall v i . Ord i => G v i -> i -> [[i]]
topograph Topograph
Depth-first paths starting at a vertex. 
>>> runG example $ \g@G{..} -> fmap3 gFromVertex $ dfs g <$> gToVertex 'x'
Right (Just ["xde","xe"])
dfsTree :: forall v i . Ord i => G v i -> i -> Tree i
topograph Topograph
like dfs but returns a Tree. 
>>> traverse2_ dispTree $ runG example $ \g@G{..} -> fmap2 gFromVertex $ dfsTree g <$> gToVertex 'x'
'x'
'd'
'e'
'e'