Lookup table for the conversion of String/Text/ByteString in Haskell:
dependencies:
- base
- bytestring
- textimport qualified Data.Text as T
import qualified Data.Text.Encoding as TE
import qualified Data.Text.Lazy as TL
import qualified Data.Text.Lazy.Encoding as TEL
import qualified Data.ByteString as BS
import qualified Data.ByteString.Char8 as BC
import qualified Data.ByteString.Lazy as BL
import qualified Data.ByteString.Lazy.Char8 as BCL| From/To | String | Text strict | Text lazy | ByteString strict | ByteString lazy |
|---|---|---|---|---|---|
| String | id | T.pack | TL.pack | BC.pack | BCL.pack |
| Text strict | T.unpack | id | TL.fromStrict | TE.encodeUtf8 | TEL.encodeUtf8 . TL.fromStrict |
| Text lazy | TL.unpack | TL.toStrict | id | BL.fromStrict . TEL.encodeUtf8 | TEL.encodeUtf8 |
| ByteString strict | BC.unpack | TE.decodeUtf8 | TEL.decodeUtf8 . BL.fromStrict | id | BL.fromStrict |
| ByteString lazy | BCL.unpack | TL.toStrict . TEL.decodeUtf8 | TEL.decodeUtf8 | BL.toStrict | id |
Addendum
import Data.ByteString.Internal (w2c, c2w)
-- w2c :: Word8 -> Char
-- c2w :: Char -> Word8
-- BS.pack :: [Word8] -> BS.ByteString
-- BS.unpack :: BS.ByteString -> [Word8]