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Data.Text.IO.Utf8: use B.putStrLn instead of B.putStr t >> B.putStr "\n" #579

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Apr 12, 2024
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11 changes: 6 additions & 5 deletions src/Data/Text/IO/Utf8.hs
Original file line number Diff line number Diff line change
Expand Up @@ -25,15 +25,16 @@ module Data.Text.IO.Utf8
, putStrLn
) where

import Prelude hiding (readFile, writeFile, appendFile, interact, getContents, getLine, putStr, putStrLn)
import Prelude ()
import Control.Exception (evaluate)
import Control.Monad ((<=<))
import Control.Monad ((<=<), (=<<))
import Data.ByteString (ByteString)
import qualified Data.ByteString.Char8 as B
import Data.Function ((.))
import Data.Text (Text)
import Data.Text.Encoding (decodeUtf8, encodeUtf8)
import GHC.IO.Handle (Handle)
import qualified Data.ByteString.Char8 as B.Char8
import System.IO (IO, FilePath)

decodeUtf8IO :: ByteString -> IO Text
decodeUtf8IO = evaluate . decodeUtf8
Expand Down Expand Up @@ -67,7 +68,7 @@ hPutStr h = B.hPutStr h . encodeUtf8

-- | Write a string to a handle, followed by a newline.
hPutStrLn :: Handle -> Text -> IO ()
hPutStrLn h t = hPutStr h t >> B.hPutStr h (B.Char8.singleton '\n')
hPutStrLn h = B.hPutStrLn h . encodeUtf8

-- | The 'interact' function takes a function of type @Text -> Text@
-- as its argument. The entire input from the standard input device is
Expand All @@ -90,4 +91,4 @@ putStr = B.putStr . encodeUtf8

-- | Write a string to 'stdout', followed by a newline.
putStrLn :: Text -> IO ()
putStrLn t = B.putStr (encodeUtf8 t) >> B.putStr (B.Char8.singleton '\n')
putStrLn = B.putStrLn . encodeUtf8
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