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Prevent or capture output to stdout or other handles in Haskell
branch: master

Merge pull request #18 from sol/master

GHC 6.10.* compatibility
latest commit 38e523aae3
@trystan authored


Silently is a package that allows you to run an IO action and prevent it from writing to stdout, or any other handle, by using "silence". Or you can capture the output for yourself using "capture".

For example; the program

 import System.IO.Silently

 main = do
   putStr "putStrLn: " >> putStrLn "puppies!"
   putStr "silenced: " >> silence (putStrLn "kittens!")
   putStrLn ""
   (captured, result) <- capture (putStr "wookies!" >> return 123)
   putStr "captured: " >> putStrLn captured
   putStr "returned: " >> putStrLn (show result)

will print

 putStrLn: puppies!
 captured: wookies!
 returned: 123
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