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{-# LANGUAGE OverloadedStrings #-}
import Control.Applicative
import qualified Data.ByteString.Lazy as BL
import Data.Csv
import qualified Data.Vector as V
data Person = Person
{ name :: String
, salary :: Int
}
instance FromNamedRecord Person where
parseNamedRecord r = Person <$> r .: "name" <*> r .: "salary"
main :: IO ()
main = do
csvData <- BL.readFile "salaries.csv"
case decodeByName csvData of
Left err -> putStrLn err
Right (_, v) -> V.forM_ v $ \ p ->
putStrLn $ name p ++ " earns " ++ show (salary p) ++ " dollars"
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