shithub: MicroHs

ref: 20490c2ef5e639ba6034a47a03d0ca8bca16404f
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