simplified a bunch of Maybe handling

1 files changed, 1 insertions, 4 deletions

diff --git a/Dot.hs b/Dot.hs
index 592b21f69..deba10201 100644
--- a/Dot.hs
+++ b/Dot.hs
@@ -20,10 +20,7 @@ graphNode nodeid desc = label desc $ quote nodeid
 
 {- an edge between two nodes -}
 graphEdge :: String -> String -> Maybe String -> String
-graphEdge fromid toid desc = indent $
-	case desc of
-		Nothing -> edge
-		Just d -> label d edge
+graphEdge fromid toid desc = indent $ maybe edge (\d -> label d edge) desc
 	where
 		edge = quote fromid ++ " -> " ++ quote toid