mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-21 05:41:43 +03:00
662 lines
18 KiB
Haskell
662 lines
18 KiB
Haskell
{-# LANGUAGE TypeOperators #-}
|
|
{-# LANGUAGE DefaultSignatures #-}
|
|
|
|
module Noun.Poet where
|
|
|
|
import ClassyPrelude hiding (fromList)
|
|
import Control.Lens
|
|
|
|
import Control.Applicative
|
|
import Control.Monad
|
|
import Noun
|
|
import Noun.Atom
|
|
import Noun.Pill
|
|
import Data.Void
|
|
import Data.Word
|
|
import GHC.Natural
|
|
import GHC.Generics hiding (from)
|
|
|
|
import qualified GHC.Generics as GHC
|
|
|
|
import Data.Typeable (Typeable)
|
|
import RIO (decodeUtf8Lenient)
|
|
|
|
import qualified Data.Char as C
|
|
import qualified Control.Monad.Fail as Fail
|
|
|
|
|
|
-- Types For Hoon Constructs ---------------------------------------------------
|
|
|
|
{-|
|
|
`Nullable a <-> ?@(~ a)`
|
|
|
|
This is distinct from `unit`, since there is no tag on the non-atom
|
|
case, therefore `a` must always be cell type.
|
|
-}
|
|
data Nullable a = Nil | NotNil a
|
|
deriving (Eq, Ord, Show)
|
|
|
|
newtype Tour = Tour [Char]
|
|
deriving (Eq, Ord, Show)
|
|
|
|
newtype Tape = Tape ByteString
|
|
deriving newtype (Eq, Ord, Show, IsString)
|
|
|
|
newtype Cord = Cord { unCord :: ByteString }
|
|
deriving newtype (Eq, Ord, Show, IsString, NFData)
|
|
|
|
-- Chars -----------------------------------------------------------------------
|
|
|
|
instance ToNoun Char where
|
|
toNoun = toNoun . (fromIntegral :: Int -> Word32) . C.ord
|
|
|
|
instance FromNoun Char where
|
|
parseNoun n = do
|
|
w :: Word32 <- parseNoun n
|
|
pure $ C.chr $ fromIntegral w
|
|
|
|
-- Pretty Printing -------------------------------------------------------------
|
|
|
|
type Tang = [Tank]
|
|
|
|
data Tank
|
|
= TLeaf Tape
|
|
| TPlum Plum
|
|
| TPalm (Tape, Tape, Tape, Tape) [Tank]
|
|
| TRose (Tape, Tape, Tape) [Tank]
|
|
deriving (Eq, Ord, Show)
|
|
|
|
type Tile = Cord
|
|
|
|
data WideFmt
|
|
= WideFmt { delimit :: Tile, enclose :: Maybe (Tile, Tile) }
|
|
deriving (Eq, Ord, Show)
|
|
|
|
data TallFmt
|
|
= TallFmt { intro :: Tile, indef :: Maybe (Tile, Tile) }
|
|
deriving (Eq, Ord, Show)
|
|
|
|
data PlumFmt
|
|
= PlumFmt (Maybe WideFmt) (Maybe TallFmt)
|
|
deriving (Eq, Ord, Show)
|
|
|
|
data Plum
|
|
= PAtom Cord
|
|
| PPara Tile [Cord]
|
|
| PTree PlumFmt [Plum]
|
|
| PSbrk Plum
|
|
deriving (Eq, Ord, Show)
|
|
|
|
|
|
-- IResult ---------------------------------------------------------------------
|
|
|
|
data IResult a = IError NounPath String | ISuccess a
|
|
deriving (Eq, Show, Typeable, Functor, Foldable, Traversable)
|
|
|
|
instance Applicative IResult where
|
|
pure = ISuccess
|
|
(<*>) = ap
|
|
|
|
instance Fail.MonadFail IResult where
|
|
fail err = traceM ("!" <> err <> "!") >> IError [] err
|
|
|
|
instance Monad IResult where
|
|
return = pure
|
|
fail = Fail.fail
|
|
ISuccess a >>= k = k a
|
|
IError path err >>= _ = IError path err
|
|
|
|
instance MonadPlus IResult where
|
|
mzero = fail "mzero"
|
|
mplus a@(ISuccess _) _ = a
|
|
mplus _ b = b
|
|
|
|
instance Alternative IResult where
|
|
empty = mzero
|
|
(<|>) = mplus
|
|
|
|
instance Semigroup (IResult a) where
|
|
(<>) = mplus
|
|
|
|
instance Monoid (IResult a) where
|
|
mempty = fail "mempty"
|
|
mappend = (<>)
|
|
|
|
|
|
-- Result ----------------------------------------------------------------------
|
|
|
|
data Result a = Error String | Success a
|
|
deriving (Eq, Show, Typeable, Functor, Foldable, Traversable)
|
|
|
|
instance Applicative Result where
|
|
pure = Success
|
|
(<*>) = ap
|
|
|
|
instance Fail.MonadFail Result where
|
|
fail err = Error err
|
|
|
|
instance Monad Result where
|
|
return = pure
|
|
fail = Fail.fail
|
|
|
|
Success a >>= k = k a
|
|
Error err >>= _ = Error err
|
|
|
|
instance MonadPlus Result where
|
|
mzero = fail "mzero"
|
|
mplus a@(Success _) _ = a
|
|
mplus _ b = b
|
|
|
|
instance Alternative Result where
|
|
empty = mzero
|
|
(<|>) = mplus
|
|
|
|
instance Semigroup (Result a) where
|
|
(<>) = mplus
|
|
{-# INLINE (<>) #-}
|
|
|
|
instance Monoid (Result a) where
|
|
mempty = fail "mempty"
|
|
mappend = (<>)
|
|
|
|
|
|
-- "Parser" --------------------------------------------------------------------
|
|
|
|
type Failure f r = NounPath -> String -> f r
|
|
type Success a f r = a -> f r
|
|
|
|
newtype Parser a = Parser {
|
|
runParser :: forall f r. NounPath -> Failure f r -> Success a f r -> f r
|
|
}
|
|
|
|
instance Monad Parser where
|
|
m >>= g = Parser $ \path kf ks -> let ks' a = runParser (g a) path kf ks
|
|
in runParser m path kf ks'
|
|
return = pure
|
|
fail = Fail.fail
|
|
|
|
instance Fail.MonadFail Parser where
|
|
fail msg = Parser $ \path kf _ks -> kf (reverse path) msg
|
|
|
|
instance Functor Parser where
|
|
fmap f m = Parser $ \path kf ks -> let ks' a = ks (f a)
|
|
in runParser m path kf ks'
|
|
|
|
apP :: Parser (a -> b) -> Parser a -> Parser b
|
|
apP d e = do
|
|
b <- d
|
|
b <$> e
|
|
|
|
instance Applicative Parser where
|
|
pure a = Parser $ \_path _kf ks -> ks a
|
|
(<*>) = apP
|
|
|
|
instance Alternative Parser where
|
|
empty = fail "empty"
|
|
(<|>) = mplus
|
|
|
|
instance MonadPlus Parser where
|
|
mzero = fail "mzero"
|
|
mplus a b = Parser $ \path kf ks -> let kf' _ _ = runParser b path kf ks
|
|
in runParser a path kf' ks
|
|
|
|
instance Semigroup (Parser a) where
|
|
(<>) = mplus
|
|
|
|
instance Monoid (Parser a) where
|
|
mempty = fail "mempty"
|
|
mappend = (<>)
|
|
|
|
|
|
-- Conversion ------------------------------------------------------------------
|
|
|
|
class FromNoun a where
|
|
parseNoun :: Noun -> Parser a
|
|
|
|
class ToNoun a where
|
|
toNoun :: a -> Noun
|
|
|
|
default toNoun :: (Generic a, GToNoun (Rep a)) => a -> Noun
|
|
toNoun = genericToNoun
|
|
|
|
|
|
-- Generic Deriving ToNoun -----------------------------------------------------
|
|
|
|
-- TODO Handle enums
|
|
|
|
class GToNoun f where
|
|
gToNoun :: f a -> Noun
|
|
|
|
genericToNoun :: (Generic a, GToNoun (Rep a)) => a -> Noun
|
|
genericToNoun = gToNoun . GHC.from
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
instance GToNoun V1 where gToNoun _ = undefined
|
|
instance GToNoun U1 where gToNoun U1 = Atom 0
|
|
|
|
instance ToNoun a => GToNoun (K1 i a) where
|
|
gToNoun = toNoun . unK1
|
|
|
|
instance (GToNoun a, GToNoun b) => GToNoun (a :*: b) where
|
|
gToNoun (x :*: y) = Cell (gToNoun x) (gToNoun y)
|
|
|
|
instance (GToNoun a, GToNoun b) => GToNoun (a :+: b) where
|
|
gToNoun (L1 x) = gToNoun x
|
|
gToNoun (R1 x) = gToNoun x
|
|
|
|
instance GToNoun a => GToNoun (S1 c a) where
|
|
gToNoun x = gToNoun (unM1 x)
|
|
|
|
instance GToNoun a => GToNoun (D1 c a) where
|
|
gToNoun x = gToNoun (unM1 x)
|
|
|
|
instance (GToNoun f, Constructor c) => GToNoun (C1 c f) where
|
|
gToNoun x = Cell tag val
|
|
where tag = toNoun (hsToHoon $ conName x)
|
|
val = gToNoun (unM1 x)
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
hsToHoon :: String -> Text
|
|
hsToHoon = go []
|
|
where
|
|
go acc [] = pack $ intercalate "-" $ reverse acc
|
|
go acc (c:cs) = go (elem:acc) remain
|
|
where
|
|
head = C.toLower c
|
|
(tail, remain) = break C.isUpper cs
|
|
elem = head:tail
|
|
|
|
-- Copy-Pasta ------------------------------------------------------------------
|
|
|
|
class HasConstructor (f :: * -> *) where
|
|
gConsName :: f x -> String
|
|
|
|
instance HasConstructor f => HasConstructor (D1 c f) where
|
|
gConsName (M1 x) = gConsName x
|
|
|
|
instance (HasConstructor x, HasConstructor y) => HasConstructor (x :+: y) where
|
|
gConsName (L1 l) = gConsName l
|
|
gConsName (R1 r) = gConsName r
|
|
|
|
instance Constructor c => HasConstructor (C1 c f) where
|
|
gConsName x = conName x
|
|
|
|
consName :: (HasConstructor (Rep a), Generic a) => a -> String
|
|
consName = gConsName . GHC.from
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
int2Word :: Int -> Word
|
|
int2Word = fromIntegral
|
|
|
|
word2Int :: Word -> Int
|
|
word2Int = fromIntegral
|
|
|
|
instance ToNoun ByteString where
|
|
toNoun bs = toNoun (int2Word (length bs), bs ^. from (pill . pillBS))
|
|
|
|
instance ToNoun Text where -- XX TODO
|
|
toNoun t = toNoun (Cord (encodeUtf8 t))
|
|
|
|
instance FromNoun Text where -- XX TODO
|
|
parseNoun n = do
|
|
Cord c <- parseNoun n
|
|
pure (decodeUtf8Lenient c)
|
|
|
|
instance FromNoun ByteString where
|
|
parseNoun x = do
|
|
(word2Int -> len, atom) <- parseNoun x
|
|
let bs = atom ^. pill . pillBS
|
|
pure $ case compare (length bs) len of
|
|
EQ -> bs
|
|
LT -> bs <> replicate (len - length bs) 0
|
|
GT -> take len bs
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
newtype Term = MkTerm Text
|
|
deriving newtype (Eq, Ord, Show)
|
|
|
|
instance ToNoun Term where -- XX TODO
|
|
toNoun (MkTerm t) = toNoun (Cord (encodeUtf8 t))
|
|
|
|
instance FromNoun Term where -- XX TODO
|
|
parseNoun n = do
|
|
Cord c <- parseNoun n
|
|
pure (MkTerm (decodeUtf8Lenient c))
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
newtype Knot = MkKnot Text
|
|
deriving newtype (Eq, Ord, Show)
|
|
|
|
instance ToNoun Knot where -- XX TODO
|
|
toNoun (MkKnot t) = toNoun (Cord (encodeUtf8 t))
|
|
|
|
instance FromNoun Knot where -- XX TODO
|
|
parseNoun n = do
|
|
Cord c <- parseNoun n
|
|
pure (MkKnot (decodeUtf8Lenient c))
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
fromNoun :: FromNoun a => Noun -> Maybe a
|
|
fromNoun n = runParser (parseNoun n) [] onFail onSuccess
|
|
where
|
|
onFail p m = Nothing
|
|
onSuccess x = Just x
|
|
|
|
fromNounErr :: FromNoun a => Noun -> Either Text a
|
|
fromNounErr n = runParser (parseNoun n) [] onFail onSuccess
|
|
where
|
|
onFail p m = Left (pack m)
|
|
onSuccess x = Right x
|
|
|
|
_Poet :: (ToNoun a, FromNoun a) => Prism' Noun a
|
|
_Poet = prism' toNoun fromNoun
|
|
|
|
|
|
-- Trivial Conversion ----------------------------------------------------------
|
|
|
|
instance ToNoun Void where
|
|
toNoun = absurd
|
|
|
|
instance FromNoun Void where
|
|
parseNoun = fail "Can't produce void"
|
|
|
|
instance ToNoun Noun where
|
|
toNoun = id
|
|
|
|
instance FromNoun Noun where
|
|
parseNoun = pure
|
|
|
|
|
|
-- Loobean Conversion ----------------------------------------------------------
|
|
|
|
instance ToNoun Bool where
|
|
toNoun True = Atom 0
|
|
toNoun False = Atom 1
|
|
|
|
instance FromNoun Bool where
|
|
parseNoun (Atom 0) = pure True
|
|
parseNoun (Atom 1) = pure False
|
|
parseNoun (Cell _ _) = fail "expecting a bool, but got a cell"
|
|
parseNoun (Atom a) = fail ("expecting a bool, but got " <> show a)
|
|
|
|
|
|
-- Atom Conversion -------------------------------------------------------------
|
|
|
|
instance ToNoun Atom where
|
|
toNoun = Atom
|
|
|
|
instance FromNoun Atom where
|
|
parseNoun (Cell _ _) = fail "Expecting an atom, but got a cell"
|
|
parseNoun (Atom a) = pure a
|
|
|
|
|
|
-- Natural Conversion-----------------------------------------------------------
|
|
|
|
instance ToNoun Natural where toNoun = toNoun . MkAtom
|
|
instance FromNoun Natural where parseNoun = fmap unAtom . parseNoun
|
|
|
|
instance ToNoun Integer where
|
|
toNoun = toNoun . (fromIntegral :: Integer -> Natural)
|
|
|
|
instance FromNoun Integer where
|
|
parseNoun = fmap ((fromIntegral :: Natural -> Integer) . unAtom) . parseNoun
|
|
|
|
|
|
-- Word Conversion -------------------------------------------------------------
|
|
|
|
atomToWord :: forall a. (Bounded a, Integral a) => Atom -> Parser a
|
|
atomToWord atom = do
|
|
if atom > fromIntegral (maxBound :: a)
|
|
then fail "Atom doesn't fit in fixed-size word"
|
|
else pure (fromIntegral atom)
|
|
|
|
wordToNoun :: Integral a => a -> Noun
|
|
wordToNoun = Atom . fromIntegral
|
|
|
|
nounToWord :: forall a. (Bounded a, Integral a) => Noun -> Parser a
|
|
nounToWord = parseNoun >=> atomToWord
|
|
|
|
instance ToNoun Word where toNoun = wordToNoun
|
|
instance ToNoun Word8 where toNoun = wordToNoun
|
|
instance ToNoun Word16 where toNoun = wordToNoun
|
|
instance ToNoun Word32 where toNoun = wordToNoun
|
|
instance ToNoun Word64 where toNoun = wordToNoun
|
|
|
|
instance FromNoun Word where parseNoun = nounToWord
|
|
instance FromNoun Word8 where parseNoun = nounToWord
|
|
instance FromNoun Word16 where parseNoun = nounToWord
|
|
instance FromNoun Word32 where parseNoun = nounToWord
|
|
instance FromNoun Word64 where parseNoun = nounToWord
|
|
|
|
|
|
-- Nullable Conversion ---------------------------------------------------------
|
|
|
|
-- TODO Consider enforcing that `a` must be a cell.
|
|
instance ToNoun a => ToNoun (Nullable a) where
|
|
toNoun Nil = Atom 0
|
|
toNoun (NotNil x) = toNoun x
|
|
|
|
instance FromNoun a => FromNoun (Nullable a) where
|
|
parseNoun (Atom 0) = pure Nil
|
|
parseNoun (Atom n) = fail ("Nullable: expected ?@(~ ^), but got " <> show n)
|
|
parseNoun n = NotNil <$> parseNoun n
|
|
|
|
|
|
-- Maybe is `unit` -------------------------------------------------------------
|
|
|
|
-- TODO Consider enforcing that `a` must be a cell.
|
|
instance ToNoun a => ToNoun (Maybe a) where
|
|
toNoun Nothing = Atom 0
|
|
toNoun (Just x) = Cell (Atom 0) (toNoun x)
|
|
|
|
instance FromNoun a => FromNoun (Maybe a) where
|
|
parseNoun = \case
|
|
Atom 0 -> pure Nothing
|
|
Atom n -> unexpected ("atom " <> show n)
|
|
Cell (Atom 0) t -> Just <$> parseNoun t
|
|
Cell n _ -> unexpected ("cell with head-atom " <> show n)
|
|
where
|
|
unexpected s = fail ("Expected unit value, but got " <> s)
|
|
|
|
|
|
-- List Conversion -------------------------------------------------------------
|
|
|
|
instance ToNoun a => ToNoun [a] where
|
|
toNoun xs = fromList (toNoun <$> xs)
|
|
|
|
instance FromNoun a => FromNoun [a] where
|
|
parseNoun (Atom 0) = pure []
|
|
parseNoun (Atom _) = fail "list terminated with non-null atom"
|
|
parseNoun (Cell l r) = (:) <$> parseNoun l <*> parseNoun r
|
|
|
|
|
|
-- Cord Conversion -------------------------------------------------------------
|
|
|
|
instance ToNoun Cord where
|
|
toNoun (Cord bs) = Atom (bs ^. from (pill . pillBS))
|
|
|
|
instance FromNoun Cord where
|
|
parseNoun n = do
|
|
atom <- parseNoun n
|
|
pure $ Cord (atom ^. pill . pillBS)
|
|
|
|
|
|
-- Tank and Plum Conversion ----------------------------------------------------
|
|
|
|
instance ToNoun WideFmt where toNoun (WideFmt x xs) = toNoun (x, xs)
|
|
instance ToNoun TallFmt where toNoun (TallFmt x xs) = toNoun (x, xs)
|
|
instance ToNoun PlumFmt where toNoun (PlumFmt wide tall) = toNoun (wide, tall)
|
|
|
|
instance FromNoun WideFmt where parseNoun = fmap (uncurry WideFmt) . parseNoun
|
|
instance FromNoun TallFmt where parseNoun = fmap (uncurry TallFmt) . parseNoun
|
|
instance FromNoun PlumFmt where parseNoun = fmap (uncurry PlumFmt) . parseNoun
|
|
|
|
instance ToNoun Plum where
|
|
toNoun = \case
|
|
PAtom cord -> toNoun cord
|
|
PPara t cs -> toNoun (Cord "para", t, cs)
|
|
PTree f ps -> toNoun (Cord "tree", f, ps)
|
|
PSbrk p -> toNoun (Cord "sbrk", p)
|
|
|
|
instance FromNoun Plum where
|
|
parseNoun = undefined
|
|
|
|
instance ToNoun Tank where
|
|
toNoun = pure (Atom 0)
|
|
|
|
instance FromNoun Tank where
|
|
parseNoun _ = pure (TLeaf (Tape "TODO: Tank Parsing"))
|
|
|
|
|
|
-- Pair Conversion -------------------------------------------------------------
|
|
|
|
instance ToNoun () where
|
|
toNoun () = Atom 0
|
|
|
|
instance FromNoun () where
|
|
parseNoun (Atom 0) = pure ()
|
|
parseNoun x = fail ("expecting `~`, but got " <> showNoun x)
|
|
|
|
instance (ToNoun a, ToNoun b) => ToNoun (a, b) where
|
|
toNoun (x, y) = Cell (toNoun x) (toNoun y)
|
|
|
|
instance (FromNoun a, FromNoun b) => FromNoun (a, b) where
|
|
parseNoun (Atom n) = fail ("expected a cell, but got an atom: " <> show n)
|
|
parseNoun (Cell l r) = (,) <$> parseNoun l <*> parseNoun r
|
|
|
|
|
|
-- Trel Conversion -------------------------------------------------------------
|
|
|
|
instance (ToNoun a, ToNoun b, ToNoun c) => ToNoun (a, b, c) where
|
|
toNoun (x, y, z) = toNoun (x, (y, z))
|
|
|
|
instance (FromNoun a, FromNoun b, FromNoun c) => FromNoun (a, b, c) where
|
|
parseNoun n = do
|
|
(x, t) <- parseNoun n
|
|
(y, z) <- parseNoun t
|
|
pure (x, y, z)
|
|
|
|
|
|
-- Quad Conversion -------------------------------------------------------------
|
|
|
|
instance (ToNoun a, ToNoun b, ToNoun c, ToNoun d) => ToNoun (a, b, c, d) where
|
|
toNoun (p, q, r, s) = toNoun (p, (q, r, s))
|
|
|
|
instance (FromNoun a, FromNoun b, FromNoun c, FromNoun d)
|
|
=> FromNoun (a, b, c, d)
|
|
where
|
|
parseNoun n = do
|
|
(p, tail) <- parseNoun n
|
|
(q, r, s) <- parseNoun tail
|
|
pure (p, q, r, s)
|
|
|
|
|
|
-- Pent Conversion ------------------------------------------------------------
|
|
|
|
instance (ToNoun a, ToNoun b, ToNoun c, ToNoun d, ToNoun e)
|
|
=> ToNoun (a, b, c, d, e) where
|
|
toNoun (p, q, r, s, t) = toNoun (p, (q, r, s, t))
|
|
|
|
instance (FromNoun a, FromNoun b, FromNoun c, FromNoun d, FromNoun e)
|
|
=> FromNoun (a, b, c, d, e)
|
|
where
|
|
parseNoun n = do
|
|
(p, tail) <- parseNoun n
|
|
(q, r, s, t) <- parseNoun tail
|
|
pure (p, q, r, s, t)
|
|
|
|
|
|
-- Sext Conversion ------------------------------------------------------------
|
|
|
|
instance (ToNoun a, ToNoun b, ToNoun c, ToNoun d, ToNoun e, ToNoun f)
|
|
=> ToNoun (a, b, c, d, e, f) where
|
|
toNoun (p, q, r, s, t, u) = toNoun (p, (q, r, s, t, u))
|
|
|
|
instance ( FromNoun a, FromNoun b, FromNoun c, FromNoun d, FromNoun e
|
|
, FromNoun f
|
|
)
|
|
=> FromNoun (a, b, c, d, e, f)
|
|
where
|
|
parseNoun n = do
|
|
(p, tail) <- parseNoun n
|
|
(q, r, s, t, u) <- parseNoun tail
|
|
pure (p, q, r, s, t, u)
|
|
|
|
instance ( FromNoun a, FromNoun b, FromNoun c, FromNoun d, FromNoun e
|
|
, FromNoun f, FromNoun g
|
|
)
|
|
=> FromNoun (a, b, c, d, e, f, g)
|
|
where
|
|
parseNoun n = do
|
|
(p, tail) <- parseNoun n
|
|
(q, r, s, t, u, v) <- parseNoun tail
|
|
pure (p, q, r, s, t, u, v)
|
|
|
|
instance ( FromNoun a, FromNoun b, FromNoun c, FromNoun d, FromNoun e
|
|
, FromNoun f, FromNoun g, FromNoun h
|
|
)
|
|
=> FromNoun (a, b, c, d, e, f, g, h)
|
|
where
|
|
parseNoun n = do
|
|
(p, tail) <- parseNoun n
|
|
(q, r, s, t, u, v, w) <- parseNoun tail
|
|
pure (p, q, r, s, t, u, v, w)
|
|
|
|
instance ( FromNoun a, FromNoun b, FromNoun c, FromNoun d, FromNoun e
|
|
, FromNoun f, FromNoun g, FromNoun h, FromNoun i
|
|
)
|
|
=> FromNoun (a, b, c, d, e, f, g, h, i)
|
|
where
|
|
parseNoun n = do
|
|
(p, tail) <- parseNoun n
|
|
(q, r, s, t, u, v, w, x) <- parseNoun tail
|
|
pure (p, q, r, s, t, u, v, w, x)
|
|
|
|
instance ( FromNoun a, FromNoun b, FromNoun c, FromNoun d, FromNoun e
|
|
, FromNoun f, FromNoun g, FromNoun h, FromNoun i, FromNoun j
|
|
)
|
|
=> FromNoun (a, b, c, d, e, f, g, h, i, j)
|
|
where
|
|
parseNoun n = do
|
|
(p, tail) <- parseNoun n
|
|
(q, r, s, t, u, v, w, x, y) <- parseNoun tail
|
|
pure (p, q, r, s, t, u, v, w, x, y)
|
|
|
|
|
|
-- This Shouldn't Be Here ------------------------------------------------------
|
|
|
|
showAtom :: Atom -> String
|
|
showAtom 0 = "0"
|
|
showAtom a =
|
|
let mTerm = do
|
|
t <- fromNoun (Atom a)
|
|
let ok = \x -> (x=='-' || C.isAlphaNum x)
|
|
guard (all ok (t :: Text))
|
|
pure ("%" <> unpack t)
|
|
|
|
in case mTerm of
|
|
Nothing -> show a
|
|
Just st -> st
|
|
|
|
showNoun :: Noun -> String
|
|
showNoun = \case
|
|
Atom a -> showAtom a
|
|
Cell x y -> fmtCell (showNoun <$> (x : toTuple y))
|
|
where
|
|
fmtCell :: [String] -> String
|
|
fmtCell xs = "[" <> intercalate " " xs <> "]"
|
|
|
|
pPrintAtom :: Atom -> IO ()
|
|
pPrintAtom = putStrLn . pack . showAtom
|
|
|
|
pPrintNoun :: Noun -> IO ()
|
|
pPrintNoun = putStrLn . pack . showNoun
|