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|
module Grasp.GEdge (
GEdge,
EdgeLabel,
mkGEdge,
mkLabel,
toSrc,
toDest,
toLabel,
toLEdge
) where
import Grasp.Graph( Node, LEdge )
newtype EdgeLabel = EdgeLabel String
deriving (Show, Eq)
newtype GEdge = GEdge (LEdge EdgeLabel)
deriving (Show, Eq)
mkGEdge :: LEdge EdgeLabel -> GEdge
mkGEdge = GEdge
mkLabel :: String -> EdgeLabel
mkLabel = EdgeLabel
toSrc :: GEdge -> String
toSrc (GEdge (x,_,_)) = x
toDest :: GEdge -> String
toDest (GEdge (_,y,_)) = y
toLabel :: GEdge -> EdgeLabel
toLabel (GEdge (_,_,z)) = z
toLEdge :: GEdge -> LEdge EdgeLabel
toLEdge (GEdge e) = e
|
