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1. readMVar :: NFData a => MVar a -> IO a

   strict-concurrency	Control.Concurrent.MVar.Strict

   This is a combination of takeMVar and putMVar; ie. it takes the value from the MVar, puts it back, and also returns it.

2. readFile :: StringRWIO s => FilePath -> IO s

   string-class	Data.String.Class

   Read a file and returns the contents of the file as a string Depending on the instance, this function might expect the file to be non-binary. The default definition uses openFile to open the file.

3. readTorrent :: ByteString -> Either String Torrent

   torrent	Data.Torrent

   No documentation available.

4. readMaybe :: Read a => String -> Maybe a

   verset	Verset

   Parse a string using the Read instance. Succeeds if there is exactly one valid result.

   >>> readMaybe "123" :: Maybe Int
   Just 123
   

   >>> readMaybe "hello" :: Maybe Int
   Nothing
   

5. readUserDirs :: IO (Map String String)

   xdg-userdirs	System.Environment.XDG.UserDir

   Read user-configured set of user directories (from user-dirs.dirs)

6. readBitmapFile :: Display -> Drawable -> String -> IO (Either String (Dimension, Dimension, Pixmap, Maybe CInt, Maybe CInt))

   xmonad-contrib	XMonad.Config.Prime

   interface to the X11 library function XReadBitmapFile.

7. readFile :: FilePath -> IO String

   xmonad-contrib	XMonad.Config.Prime

   The readFile function reads a file and returns the contents of the file as a string. The file is read lazily, on demand, as with getContents.

8. readIO :: Read a => String -> IO a

   xmonad-contrib	XMonad.Config.Prime

   The readIO function is similar to read except that it signals parse failure to the IO monad instead of terminating the program.

9. readList :: Read a => ReadS [a]

   xmonad-contrib	XMonad.Config.Prime

   The method readList is provided to allow the programmer to give a specialised way of parsing lists of values. For example, this is used by the predefined Read instance of the Char type, where values of type String are expected to use double quotes, rather than square brackets.

10. readLn :: Read a => IO a

    xmonad-contrib	XMonad.Config.Prime

    The readLn function combines getLine and readIO.

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