author | unc0rr |
Fri, 29 Aug 2008 19:40:37 +0000 | |
changeset 1235 | 070629f3902d |
parent 1083 | 3448dd03483f |
child 1304 | 05cebf68ebd8 |
permissions | -rw-r--r-- |
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module Miscutils where |
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import IO |
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import Control.Concurrent.STM |
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import Data.Word |
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import Data.Char |
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import Data.List |
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import Maybe (fromJust) |
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data ClientInfo = |
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ClientInfo |
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{ |
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chan :: TChan [String], |
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handle :: Handle, |
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nick :: String, |
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protocol :: Word16, |
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room :: String, |
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isMaster :: Bool |
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} |
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instance Eq ClientInfo where |
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a1 == a2 = handle a1 == handle a2 |
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data TeamInfo = |
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TeamInfo |
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{ |
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teamname :: String |
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} |
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data RoomInfo = |
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RoomInfo |
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{ |
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name :: String, |
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password :: String, |
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teams :: [TeamInfo] |
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} |
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type ClientsTransform = [ClientInfo] -> [ClientInfo] |
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type RoomsTransform = [RoomInfo] -> [RoomInfo] |
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type HandlesSelector = ClientInfo -> [ClientInfo] -> [RoomInfo] -> [Handle] |
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type CmdHandler = ClientInfo -> [ClientInfo] -> [RoomInfo] -> [String] -> (ClientsTransform, RoomsTransform, HandlesSelector, [String]) |
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roomByName :: String -> [RoomInfo] -> RoomInfo |
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roomByName roomName rooms = fromJust $ find (\room -> roomName == name room) rooms |
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tselect :: [ClientInfo] -> STM ([String], ClientInfo) |
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tselect = foldl orElse retry . map (\ci -> (flip (,) ci) `fmap` readTChan (chan ci)) |
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maybeRead :: Read a => String -> Maybe a |
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maybeRead s = case reads s of |
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[(x, rest)] | all isSpace rest -> Just x |
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_ -> Nothing |
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deleteBy2t :: (a -> b -> Bool) -> b -> [a] -> [a] |
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deleteBy2t _ _ [] = [] |
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deleteBy2t eq x (y:ys) = if y `eq` x then ys else y : deleteBy2t eq x ys |
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deleteFirstsBy2t :: (a -> b -> Bool) -> [a] -> [b] -> [a] |
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deleteFirstsBy2t eq = foldl (flip (deleteBy2t eq)) |
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sameRoom :: HandlesSelector |
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sameRoom client clients rooms = map handle $ filter (\ci -> room ci == room client) clients |
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othersInRoom :: HandlesSelector |
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othersInRoom client clients rooms = map handle $ filter (client /=) $ filter (\ci -> room ci == room client) clients |
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fromRoom :: String -> HandlesSelector |
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fromRoom roomName _ clients _ = map handle $ filter (\ci -> room ci == roomName) clients |
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clientOnly :: HandlesSelector |
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clientOnly client _ _ = [handle client] |
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noChangeClients :: ClientsTransform |
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noChangeClients a = a |
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modifyClient :: ClientInfo -> ClientsTransform |
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modifyClient client (cl:cls) = |
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if cl == client then |
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client : cls |
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else |
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cl : (modifyClient client cls) |
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noChangeRooms :: RoomsTransform |
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noChangeRooms a = a |
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addRoom :: RoomInfo -> RoomsTransform |
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addRoom room rooms = room:rooms |
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removeRoom :: String -> RoomsTransform |
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removeRoom roomname rooms = filter (\rm -> roomname /= name rm) rooms |
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badCmd :: [String] |
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badCmd = ["ERROR", "Bad command, state or incorrect parameter"] |