view paste/paste.14186 @ 2266:4767030cee0e

<elliott> addquote <ais523> Phantom_Hoover: my department teaches prolog, to second years I think <ais523> some people choose it because it isn\'t ocaml, and then are disappointed to find it has lists
author HackBot
date Tue, 26 Feb 2013 18:41:42 +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 ++ ").*$"