{-# LANGUAGE NoImplicitPrelude #-}

module Data.Digit.Class.LowerCase (

  -- * Classes
    Da(..)
  , Db(..)
  , Dc(..)
  , Dd(..)
  , De(..)
  , Df(..)

  -- * Parsers
 , parsea
 , parseb
 , parsec
 , parsed
 , parsee
 , parsef

) where

import           Control.Category        (id)
import           Control.Lens            (Prism', ( # ))

import           Data.Functor            ((<$))

import           Text.Parser.Char        (CharParsing, char)
import           Text.Parser.Combinators ((<?>))

-- $setup
-- >>> import Data.Digit
-- >>> import Text.Parsec(parse, ParseError, eof)
-- >>> import Data.Void(Void)

class Da d where
  da ::
    Prism'
      d
      ()
  xa ::
    d
  xa =
    forall d. Da d => Prism' d ()
da forall t b. AReview t b -> b -> t
# ()

instance Da () where
  da :: Prism' () ()
da =
    forall {k} (cat :: k -> k -> *) (a :: k). Category cat => cat a a
id

class Db d where
  db ::
    Prism'
      d
      ()
  xb ::
    d
  xb =
    forall d. Db d => Prism' d ()
db forall t b. AReview t b -> b -> t
# ()

instance Db () where
  db :: Prism' () ()
db =
    forall {k} (cat :: k -> k -> *) (a :: k). Category cat => cat a a
id

class Dc d where
  dc ::
    Prism'
      d
      ()
  xc ::
    d
  xc =
    forall d. Dc d => Prism' d ()
dc forall t b. AReview t b -> b -> t
# ()

instance Dc () where
  dc :: Prism' () ()
dc =
    forall {k} (cat :: k -> k -> *) (a :: k). Category cat => cat a a
id

class Dd d where
  dd ::
    Prism'
      d
      ()
  xd ::
    d
  xd =
    forall d. Dd d => Prism' d ()
dd forall t b. AReview t b -> b -> t
# ()

instance Dd () where
  dd :: Prism' () ()
dd =
    forall {k} (cat :: k -> k -> *) (a :: k). Category cat => cat a a
id

class De d where
  de ::
    Prism'
      d
      ()
  xe ::
    d
  xe =
    forall d. De d => Prism' d ()
de forall t b. AReview t b -> b -> t
# ()

instance De () where
  de :: Prism' () ()
de =
    forall {k} (cat :: k -> k -> *) (a :: k). Category cat => cat a a
id

class Df d where
  df ::
    Prism'
      d
      ()
  xf ::
    d
  xf =
    forall d. Df d => Prism' d ()
df forall t b. AReview t b -> b -> t
# ()

instance Df () where
  df :: Prism' () ()
df =
    forall {k} (cat :: k -> k -> *) (a :: k). Category cat => cat a a
id

-- |
--
-- >>> parse (parsea <* eof) "test" "a" :: Either ParseError HexDigit
-- Right HexDigita
--
-- >>> parse parsea "test" "axyz" :: Either ParseError HexDigit
-- Right HexDigita
--
-- >>> isn't _Right (parse parsea "test" "xyz" :: Either ParseError HexDigit)
-- True
parsea ::
  (Da d, CharParsing p) =>
  p d
parsea :: forall d (p :: * -> *). (Da d, CharParsing p) => p d
parsea =
  forall d. Da d => d
xa forall (f :: * -> *) a b. Functor f => a -> f b -> f a
<$ forall (m :: * -> *). CharParsing m => Char -> m Char
char Char
'a' forall (m :: * -> *) a. Parsing m => m a -> String -> m a
<?> String
"a"

-- |
--
-- >>> parse (parseb <* eof) "test" "b" :: Either ParseError HexDigit
-- Right HexDigitb
--
-- >>> parse parseb "test" "bxyz" :: Either ParseError HexDigit
-- Right HexDigitb
--
-- >>> isn't _Right (parse parseb "test" "xyz" :: Either ParseError HexDigit)
-- True
parseb ::
  (Db d, CharParsing p) =>
  p d
parseb :: forall d (p :: * -> *). (Db d, CharParsing p) => p d
parseb =
  forall d. Db d => d
xb forall (f :: * -> *) a b. Functor f => a -> f b -> f a
<$ forall (m :: * -> *). CharParsing m => Char -> m Char
char Char
'b' forall (m :: * -> *) a. Parsing m => m a -> String -> m a
<?> String
"b"

-- |
--
-- >>> parse (parsec <* eof) "test" "c" :: Either ParseError HexDigit
-- Right HexDigitc
--
-- >>> parse parsec "test" "cxyz" :: Either ParseError HexDigit
-- Right HexDigitc
--
-- >>> isn't _Right (parse parsec "test" "xyz" :: Either ParseError HexDigit)
-- True
parsec ::
  (Dc d, CharParsing p) =>
  p d
parsec :: forall d (p :: * -> *). (Dc d, CharParsing p) => p d
parsec =
  forall d. Dc d => d
xc forall (f :: * -> *) a b. Functor f => a -> f b -> f a
<$ forall (m :: * -> *). CharParsing m => Char -> m Char
char Char
'c' forall (m :: * -> *) a. Parsing m => m a -> String -> m a
<?> String
"c"

-- |
--
-- >>> parse (parsed <* eof) "test" "d" :: Either ParseError HexDigit
-- Right HexDigitd
--
-- >>> parse parsed "test" "dxyz" :: Either ParseError HexDigit
-- Right HexDigitd
--
-- >>> isn't _Right (parse parsed "test" "xyz" :: Either ParseError HexDigit)
-- True
parsed ::
  (Dd d, CharParsing p) =>
  p d
parsed :: forall d (p :: * -> *). (Dd d, CharParsing p) => p d
parsed =
  forall d. Dd d => d
xd forall (f :: * -> *) a b. Functor f => a -> f b -> f a
<$ forall (m :: * -> *). CharParsing m => Char -> m Char
char Char
'd' forall (m :: * -> *) a. Parsing m => m a -> String -> m a
<?> String
"d"

-- |
--
-- >>> parse (parsee <* eof) "test" "e" :: Either ParseError HexDigit
-- Right HexDigite
--
-- >>> parse parsee "test" "exyz" :: Either ParseError HexDigit
-- Right HexDigite
--
-- >>> isn't _Right (parse parsee "test" "xyz" :: Either ParseError HexDigit)
-- True
parsee ::
  (De d, CharParsing p) =>
  p d
parsee :: forall d (p :: * -> *). (De d, CharParsing p) => p d
parsee =
  forall d. De d => d
xe forall (f :: * -> *) a b. Functor f => a -> f b -> f a
<$ forall (m :: * -> *). CharParsing m => Char -> m Char
char Char
'e' forall (m :: * -> *) a. Parsing m => m a -> String -> m a
<?> String
"e"

-- |
--
-- >>> parse (parsef <* eof) "test" "f" :: Either ParseError HexDigit
-- Right HexDigitf
--
-- >>> parse parsef "test" "fxyz" :: Either ParseError HexDigit
-- Right HexDigitf
--
-- >>> isn't _Right (parse parsef "test" "xyz" :: Either ParseError HexDigit)
-- True
parsef ::
  (Df d, CharParsing p) =>
  p d
parsef :: forall d (p :: * -> *). (Df d, CharParsing p) => p d
parsef =
  forall d. Df d => d
xf forall (f :: * -> *) a b. Functor f => a -> f b -> f a
<$ forall (m :: * -> *). CharParsing m => Char -> m Char
char Char
'f' forall (m :: * -> *) a. Parsing m => m a -> String -> m a
<?> String
"f"