shithub: MicroHs

ref: a29aeb7b470b51a212e225b7fe2d5233533b0269
dir: /Tools/Count.hs/

View raw version 
import System.Environment
import Data.List

main = do
  [pat, fn] <- getArgs
  file <- readFile fn
  let n = length $ filter (isPrefixOf pat) (tails file)
  print n