view paste/paste.14186 @ 3948:54bf9957439c

<oerjan> addquote <ion> olsner: For all x, the probability of a monad tutorial existing that explains monads as x approaches one as time goes to infinity. <boily> good monadic morning! <ion> Monads are a bit like mornings. <myname> what
author HackBot
date Mon, 28 Oct 2013 15:43:46 +0000
parents e037173e0012
children
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import System.Environment
import System.Process
import System.Exit
import Control.Monad
import Control.Applicative
import Data.List

main = do
    r <- buildRegex . permuteArgs <$> getArgs
    (_, _, _, h) <- createProcess (proc "/hackenv/bin/log" [r])
    exitWith <$> waitForProcess h
   where
     permuteArgs = permutations . join . map words
     buildRegex = oBrackets . intercalate ".*" . map (iBrackets . intercalate "|")
     iBrackets s = "(?:" ++ s ++ ")"
     oBrackets s = "^.*(?:" ++ s ++ ").*$"