added parallel graph-parsing, enabled profiling
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dist/build/hgraph/hgraph
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dist/setup-config
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@ -13,6 +13,7 @@ executable hgraph
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main-is: Main.hs
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buildable: True
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hs-source-dirs: src
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ghc-options: -threaded -rtsopts -eventlog
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test-suite test-hgraph
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build-depends: QuickCheck -any, Stream -any, base -any,
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@ -21,4 +22,5 @@ test-suite test-hgraph
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main-is: Main.hs
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buildable: True
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cpp-options: -DMAIN_FUNCTION=testMain
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hs-source-dirs: src
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hs-source-dirs: src
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ghc-options: -threaded -rtsopts -eventlog
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51
src/Main.hs
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src/Main.hs
@ -29,13 +29,28 @@ import Control.Monad.Par.Scheds.Trace
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import qualified Data.Stream as S
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import Data.Either (lefts, rights)
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import Stream
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import Stream hiding (map)
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-- TODO: implement parser!
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createGraph :: ByteString -> Either [Int] String
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createGraph _ = Left [1,2,3]
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createGraph :: String -> Either [Int] String
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createGraph input = createGraph' input (Left [])
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where
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createGraph' :: String -> Either [Int] String -> Either [Int] String
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createGraph' [] r = r
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createGraph' (a:as) r =
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let next = (createGraph' as r) in
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case next of
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Left xs ->
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case a of
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'0' -> Left $ 0:xs
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'1' -> Left $ 1:xs
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_ -> Right $ "cannot parse " ++ (a:as)
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Right errstr ->
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Right errstr
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--createGraph input = Right $ "Parsing-error in line: " ++ input
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-- TODO: not needed anymore. remove? Later use?
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graphFolder :: [Either [Int] String] -> (Either [[Int]] String)
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graphFolder [] = Right "empty Graph"
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graphFolder l = graphFolder' l (Left [[]])
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@ -60,6 +75,21 @@ graphFolder l = graphFolder' l (Left [[]])
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concatWith :: String -> String -> String -> String
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concatWith d a b = a ++ d ++ b
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emptyLine :: String -> Bool
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emptyLine "" = True
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emptyLine "\n" = True
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emptyLine "\r\n" = True
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emptyLine "\r" = True
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emptyLine _ = False
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emptyLog :: [String] -> Bool
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emptyLog [] = True
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emptyLog a = emptyLine $ foldl1 (++) a
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-- TODO: implement calculation
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doCalculation :: [[Int]] -> ByteString
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doCalculation a = B.pack $ (show a) ++ "\n"
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exeMain = do
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args <- getArgs
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input <- case args of
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@ -67,14 +97,17 @@ exeMain = do
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[] -> error "Error: No filename or stdinput (-) given."
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[file] -> B.readFile file
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-- unrefined_graph::[Either [Int] String] - [Int] is Adjacency-Line, String is parse-Error
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unrefined_graph <- return $ parMap (rparWith rdeepseq) (createGraph) (B.split '\n' input)
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unrefined_graph <- return $ parMap (rparWith rdeepseq) --run parallel, evaluate fully
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-- and filter empty lines
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(createGraph) (filter (not . emptyLine)
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-- split at \n, convert to String
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(map B.unpack (B.split '\n' input)))
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--egraph <- return $ graphFolder unrefined_graph
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(graph, log) <- return (lefts unrefined_graph, rights unrefined_graph)
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--do stuff with graph
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B.putStr $ B.pack (foldl (concatWith "\n") "" log) -- Print output
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output <- return $ case emptyLog log of
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True -> doCalculation graph
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_ -> B.pack $ "Error detected:\n" ++ (foldl (concatWith "\n") "" log) ++ "\n\n"
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B.putStr output
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-- Entry point for unit tests.
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