Waargonaut.Types.CommaSep.Elem

Types

data Elem f ws a

Data type to represent a single element in a CommaSeparated list. Carries information about it's own trailing whitespace. Denoted by the f.

Constructors

Elem

Fields

• _elemVal :: a
• _elemTrailing :: f (Comma, ws)

Instances

Traversable f => Bitraversable (Elem f)

Defined in Waargonaut.Types.CommaSep.Elem

Methods

bitraverse :: Applicative f0 => (a -> f0 c) -> (b -> f0 d) -> Elem f a b -> f0 (Elem f c d)

Foldable f => Bifoldable (Elem f)

Defined in Waargonaut.Types.CommaSep.Elem

Methods

bifold :: Monoid m => Elem f m m -> m

bifoldMap :: Monoid m => (a -> m) -> (b -> m) -> Elem f a b -> m

bifoldr :: (a -> c -> c) -> (b -> c -> c) -> c -> Elem f a b -> c

bifoldl :: (c -> a -> c) -> (c -> b -> c) -> c -> Elem f a b -> c

Functor f => Bifunctor (Elem f)

Defined in Waargonaut.Types.CommaSep.Elem

Methods

bimap :: (a -> b) -> (c -> d) -> Elem f a c -> Elem f b d

first :: (a -> b) -> Elem f a c -> Elem f b c

second :: (b -> c) -> Elem f a b -> Elem f a c

Functor (Elem f ws)

Defined in Waargonaut.Types.CommaSep.Elem

Methods

fmap :: (a -> b) -> Elem f ws a -> Elem f ws b

(<$) :: a -> Elem f ws b -> Elem f ws a

(Monoid ws, Applicative f) => Applicative (Elem f ws)

Defined in Waargonaut.Types.CommaSep.Elem

Methods

pure :: a -> Elem f ws a

(<*>) :: Elem f ws (a -> b) -> Elem f ws a -> Elem f ws b

liftA2 :: (a -> b -> c) -> Elem f ws a -> Elem f ws b -> Elem f ws c

(*>) :: Elem f ws a -> Elem f ws b -> Elem f ws b

(<*) :: Elem f ws a -> Elem f ws b -> Elem f ws a

Foldable (Elem f ws)

Defined in Waargonaut.Types.CommaSep.Elem

Methods

fold :: Monoid m => Elem f ws m -> m

foldMap :: Monoid m => (a -> m) -> Elem f ws a -> m

foldr :: (a -> b -> b) -> b -> Elem f ws a -> b

foldr' :: (a -> b -> b) -> b -> Elem f ws a -> b

foldl :: (b -> a -> b) -> b -> Elem f ws a -> b

foldl' :: (b -> a -> b) -> b -> Elem f ws a -> b

foldr1 :: (a -> a -> a) -> Elem f ws a -> a

foldl1 :: (a -> a -> a) -> Elem f ws a -> a

toList :: Elem f ws a -> [a]

null :: Elem f ws a -> Bool

length :: Elem f ws a -> Int

elem :: Eq a => a -> Elem f ws a -> Bool

maximum :: Ord a => Elem f ws a -> a

minimum :: Ord a => Elem f ws a -> a

sum :: Num a => Elem f ws a -> a

product :: Num a => Elem f ws a -> a

Traversable (Elem f ws)

Defined in Waargonaut.Types.CommaSep.Elem

Methods

traverse :: Applicative f0 => (a -> f0 b) -> Elem f ws a -> f0 (Elem f ws b)

sequenceA :: Applicative f0 => Elem f ws (f0 a) -> f0 (Elem f ws a)

mapM :: Monad m => (a -> m b) -> Elem f ws a -> m (Elem f ws b)

sequence :: Monad m => Elem f ws (m a) -> m (Elem f ws a)

(Eq1 f, Eq ws, Eq a) => Eq (Elem f ws a)

Defined in Waargonaut.Types.CommaSep.Elem

Methods

(==) :: Elem f ws a -> Elem f ws a -> Bool

(/=) :: Elem f ws a -> Elem f ws a -> Bool

(Show1 f, Show ws, Show a) => Show (Elem f ws a)

Defined in Waargonaut.Types.CommaSep.Elem

Methods

showsPrec :: Int -> Elem f ws a -> ShowS

show :: Elem f ws a -> String

showList :: [Elem f ws a] -> ShowS

HasElem (Elem f ws a) f ws a

Defined in Waargonaut.Types.CommaSep.Elem

Methods

elem :: Lens' (Elem f ws a) (Elem f ws a)

elemTrailing :: Lens' (Elem f ws a) (f (Comma, ws))

elemVal :: Lens' (Elem f ws a) a

class HasElem c f ws a | c -> f ws a where

Typeclass for things that contain a single Elem structure.

Minimal complete definition

elem

Methods

elem :: Lens' c (Elem f ws a)

elemTrailing :: Lens' c (f (Comma, ws))

elemVal :: Lens' c a

Instances

HasElem (Elem f ws a) f ws a

Defined in Waargonaut.Types.CommaSep.Elem

Methods

elem :: Lens' (Elem f ws a) (Elem f ws a)

elemTrailing :: Lens' (Elem f ws a) (f (Comma, ws))

elemVal :: Lens' (Elem f ws a) a

data Comma

Unary type to represent a comma.

Constructors

Comma

Instances

Eq Comma

Defined in Waargonaut.Types.CommaSep.Elem

Methods

(==) :: Comma -> Comma -> Bool

(/=) :: Comma -> Comma -> Bool

Show Comma

Defined in Waargonaut.Types.CommaSep.Elem

Methods

showsPrec :: Int -> Comma -> ShowS

show :: Comma -> String

showList :: [Comma] -> ShowS

_ElemTrailingIso :: (Monoid ws, Monoid ws') => Iso (Elem Identity ws a) (Elem Identity ws' a') (Elem Maybe ws a) (Elem Maybe ws' a')

Parse

parseComma :: CharParsing f => f Comma

Parse a single comma (,)

parseCommaTrailingMaybe :: CharParsing f => f ws -> f (Maybe (Comma, ws))

Parse an optional comma and its trailing whitespace.

>>> testparse (parseCommaTrailingMaybe parseWhitespace) ", "
Right (Just (Comma,WS [Space]))

>>> testparse (parseCommaTrailingMaybe parseWhitespace) " , "
Right Nothing

>>> testparse (parseCommaTrailingMaybe parseWhitespace) ",, "
Right (Just (Comma,WS []))