[Haskell-cafe] beginners question about fromMaybe

[Nico Rolle]

hi there

heres a code snipped, don't care about the parameters.
the thing is i make a lookup on my map "m" and then branch on that return value

probePhase is sc [] m = []
probePhase is sc (x:xs) m
    | val == Nothing  = probePhase is sc xs m
    | otherwise       = jr ++ probePhase is sc xs m
        where
            jr  = joinTuples sc x (fromMaybe [] val)
            key = getPartialTuple is x
            val = Map.lookup key m


the line "jr  = joinTuples sc x (fromMaybe [] val)" is kind of ugly
because i know that it is not Nothing.
is there a better way to solve this?
regards