{-# LANGUAGE TypeFamilies #-}
module BytePatch.Pretty.HexByteString
( HexByteString(..)
, parseHexByteString
, prettyHexByteString
) where
import BytePatch.Pretty.PatchRep
import Text.Megaparsec
import qualified Text.Megaparsec.Char as MC
import qualified Data.ByteString as BS
import qualified Data.Char as Char
import Data.Word
import qualified Data.Text as Text
import Data.Text ( Text )
import Data.List as List
type Bytes = BS.ByteString
newtype HexByteString = HexByteString { HexByteString -> Bytes
unHexByteString :: Bytes }
deriving (HexByteString -> HexByteString -> Bool
(HexByteString -> HexByteString -> Bool)
-> (HexByteString -> HexByteString -> Bool) -> Eq HexByteString
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: HexByteString -> HexByteString -> Bool
$c/= :: HexByteString -> HexByteString -> Bool
== :: HexByteString -> HexByteString -> Bool
$c== :: HexByteString -> HexByteString -> Bool
Eq)
instance Show HexByteString where
show :: HexByteString -> String
show = Text -> String
Text.unpack (Text -> String)
-> (HexByteString -> Text) -> HexByteString -> String
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Bytes -> Text
prettyHexByteString (Bytes -> Text)
-> (HexByteString -> Bytes) -> HexByteString -> Text
forall b c a. (b -> c) -> (a -> b) -> a -> c
. HexByteString -> Bytes
unHexByteString
instance PatchRep HexByteString where
toPatchRep :: HexByteString -> Either String Bytes
toPatchRep = Bytes -> Either String Bytes
forall a b. b -> Either a b
Right (Bytes -> Either String Bytes)
-> (HexByteString -> Bytes) -> HexByteString -> Either String Bytes
forall b c a. (b -> c) -> (a -> b) -> a -> c
. HexByteString -> Bytes
unHexByteString
parseHexByteString :: (MonadParsec e s m, Token s ~ Char) => m Bytes
parseHexByteString :: forall e s (m :: * -> *).
(MonadParsec e s m, Token s ~ Char) =>
m Bytes
parseHexByteString = [Word8] -> Bytes
BS.pack ([Word8] -> Bytes) -> m [Word8] -> m Bytes
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> m Word8
forall e s (m :: * -> *) a.
(MonadParsec e s m, Token s ~ Char, Num a) =>
m a
parseHexByte m Word8 -> m () -> m [Word8]
forall (m :: * -> *) a sep. MonadPlus m => m a -> m sep -> m [a]
`sepBy` m ()
forall e s (m :: * -> *).
(MonadParsec e s m, Token s ~ Char) =>
m ()
MC.hspace
parseHexByte :: (MonadParsec e s m, Token s ~ Char, Num a) => m a
parseHexByte :: forall e s (m :: * -> *) a.
(MonadParsec e s m, Token s ~ Char, Num a) =>
m a
parseHexByte = do
Char
c1 <- m Char
forall e s (m :: * -> *).
(MonadParsec e s m, Token s ~ Char) =>
m (Token s)
MC.hexDigitChar
Char
c2 <- m Char
forall e s (m :: * -> *).
(MonadParsec e s m, Token s ~ Char) =>
m (Token s)
MC.hexDigitChar
a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (a -> m a) -> a -> m a
forall a b. (a -> b) -> a -> b
$ a
0x10 a -> a -> a
forall a. Num a => a -> a -> a
* Int -> a
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Char -> Int
Char.digitToInt Char
c1) a -> a -> a
forall a. Num a => a -> a -> a
+ Int -> a
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Char -> Int
Char.digitToInt Char
c2)
prettyHexByteString :: Bytes -> Text
prettyHexByteString :: Bytes -> Text
prettyHexByteString =
[Text] -> Text
Text.concat ([Text] -> Text) -> (Bytes -> [Text]) -> Bytes -> Text
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Text -> [Text] -> [Text]
forall a. a -> [a] -> [a]
List.intersperse (Char -> Text
Text.singleton Char
' ') ([Text] -> [Text]) -> (Bytes -> [Text]) -> Bytes -> [Text]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Word8 -> Text) -> [Word8] -> [Text]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap ((Char, Char) -> Text
f ((Char, Char) -> Text) -> (Word8 -> (Char, Char)) -> Word8 -> Text
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Word8 -> (Char, Char)
prettyHexByte) ([Word8] -> [Text]) -> (Bytes -> [Word8]) -> Bytes -> [Text]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Bytes -> [Word8]
BS.unpack
where
f :: (Char, Char) -> Text
f :: (Char, Char) -> Text
f (Char
c1, Char
c2) = Char -> Text -> Text
Text.cons Char
c1 (Text -> Text) -> Text -> Text
forall a b. (a -> b) -> a -> b
$ Char -> Text
Text.singleton Char
c2
prettyHexByte :: Word8 -> (Char, Char)
prettyHexByte :: Word8 -> (Char, Char)
prettyHexByte Word8
w = (Int -> Char
prettyNibble Int
h, Int -> Char
prettyNibble Int
l)
where
(Int
h,Int
l) = Word8 -> Int
forall a b. (Integral a, Num b) => a -> b
fromIntegral Word8
w Int -> Int -> (Int, Int)
forall a. Integral a => a -> a -> (a, a)
`divMod` Int
0x10
prettyNibble :: Int -> Char
prettyNibble = Char -> Char
Char.toUpper (Char -> Char) -> (Int -> Char) -> Int -> Char
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Int -> Char
Char.intToDigit