diff options
Diffstat (limited to 'src/Grasp/Graph.hs')
| -rw-r--r-- | src/Grasp/Graph.hs | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/Grasp/Graph.hs b/src/Grasp/Graph.hs index 0caaee7..bc08bbe 100644 --- a/src/Grasp/Graph.hs +++ b/src/Grasp/Graph.hs @@ -106,9 +106,9 @@ match n gr = then (Nothing, gr) else (Just (to, n, label, from), gr) where - to = map edgeToAdjTo (filter (edgeTo n) (labEdges gr)) + to = edgesToAdjTo (filter (edgeTo n) (labEdges gr)) label = snd . head $ (filter (\(x,y) -> x == n) (labNodes gr)) - from = map edgeToAdjFrom (filter (edgeFrom n) (labEdges gr)) + from = edgesToAdjFrom (filter (edgeFrom n) (labEdges gr)) @@ -133,21 +133,21 @@ nodes gr = (map fst) . labNodes $ gr -edgeToAdjFrom :: LEdge a -> Adj a -edgeToAdjFrom (x,y,z) = (z,y) +edgesToAdjFrom :: [LEdge a] -> Adj a +edgesToAdjFrom = map (\(x,y,z) -> (z,x)) -edgeToAdjTo :: LEdge a -> Adj a -edgeToAdjTo (x,y,z) = (z,x) +edgesToAdjTo :: [LEdge a] -> Adj a +edgesToAdjTo = map (\(x,y,z) -> (z,y)) edgeFrom :: Node -> LEdge a -> Bool -edgeFrom n (x,y,z) = (y == n) +edgeFrom n (x,y,z) = (x == n) edgeTo :: Node -> LEdge a -> Bool -edgeTo n (x,y,z) = (x == n) +edgeTo n (x,y,z) = (y == n) |