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module IndependentScreens where
marshall (S sc) ws = show sc ++ '_':ws
unmarshall = ((S . read) *** drop 1) . break (=='_')
workspaces' = nub . map (snd . unmarshall) . workspaces
withScreens n workspaces = [marshall sc ws | ws <- workspaces, sc <- [0..n-1]]
onScreen f workspace = screen . current >>= f . flip marshall workspace
countScreens = fmap genericLength $ openDisplay "" >>= getScreenInfo
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