Safe Haskell	None
Language	Haskell2010

Waargonaut.Types.JChar.Escaped

Contents

Types
Parser
Conversion

Description

Types and functions for handling escaped characters in JSON.

Synopsis

data Escaped digit
- = QuotationMark
- | ReverseSolidus
- | Solidus
- | Backspace
- | WhiteSpace Whitespace
- | Hex (HexDigit4 digit)
class AsEscaped r digit | r -> digit where
- _Escaped :: Prism' r (Escaped digit)
- _QuotationMark :: Prism' r ()
- _ReverseSolidus :: Prism' r ()
- _Solidus :: Prism' r ()
- _Backspace :: Prism' r ()
- _WhiteSpace :: Prism' r Whitespace
- _Hex :: Prism' r (HexDigit4 digit)
parseEscaped :: (CharParsing f, HeXaDeCiMaL digit) => f (Escaped digit)
escapedToChar :: Escaped HeXDigit -> Char
charToEscaped :: Char -> Maybe (Escaped HeXDigit)

Types

data Escaped digit Source #

Things that may be escaped in a JSON string.

Constructors

QuotationMark
ReverseSolidus
Solidus
Backspace
WhiteSpace Whitespace
Hex (HexDigit4 digit)

Instances

Instances details

Functor Escaped Source #
Instance details Defined in Waargonaut.Types.JChar.Escaped Methods fmap :: (a -> b) -> Escaped a -> Escaped b # (<$) :: a -> Escaped b -> Escaped a #
Foldable Escaped Source #
Instance details Defined in Waargonaut.Types.JChar.Escaped Methods fold :: Monoid m => Escaped m -> m # foldMap :: Monoid m => (a -> m) -> Escaped a -> m # foldMap' :: Monoid m => (a -> m) -> Escaped a -> m # foldr :: (a -> b -> b) -> b -> Escaped a -> b # foldr' :: (a -> b -> b) -> b -> Escaped a -> b # foldl :: (b -> a -> b) -> b -> Escaped a -> b # foldl' :: (b -> a -> b) -> b -> Escaped a -> b # foldr1 :: (a -> a -> a) -> Escaped a -> a # foldl1 :: (a -> a -> a) -> Escaped a -> a # toList :: Escaped a -> [a] # null :: Escaped a -> Bool # length :: Escaped a -> Int # elem :: Eq a => a -> Escaped a -> Bool # maximum :: Ord a => Escaped a -> a # minimum :: Ord a => Escaped a -> a # sum :: Num a => Escaped a -> a # product :: Num a => Escaped a -> a #
Traversable Escaped Source #
Instance details Defined in Waargonaut.Types.JChar.Escaped Methods traverse :: Applicative f => (a -> f b) -> Escaped a -> f (Escaped b) # sequenceA :: Applicative f => Escaped (f a) -> f (Escaped a) # mapM :: Monad m => (a -> m b) -> Escaped a -> m (Escaped b) # sequence :: Monad m => Escaped (m a) -> m (Escaped a) #
Eq digit => Eq (Escaped digit) Source #
Instance details Defined in Waargonaut.Types.JChar.Escaped Methods (==) :: Escaped digit -> Escaped digit -> Bool # (/=) :: Escaped digit -> Escaped digit -> Bool #
Ord digit => Ord (Escaped digit) Source #
Instance details Defined in Waargonaut.Types.JChar.Escaped Methods compare :: Escaped digit -> Escaped digit -> Ordering # (<) :: Escaped digit -> Escaped digit -> Bool # (<=) :: Escaped digit -> Escaped digit -> Bool # (>) :: Escaped digit -> Escaped digit -> Bool # (>=) :: Escaped digit -> Escaped digit -> Bool # max :: Escaped digit -> Escaped digit -> Escaped digit # min :: Escaped digit -> Escaped digit -> Escaped digit #
Show digit => Show (Escaped digit) Source #
Instance details Defined in Waargonaut.Types.JChar.Escaped Methods showsPrec :: Int -> Escaped digit -> ShowS # show :: Escaped digit -> String # showList :: [Escaped digit] -> ShowS #
AsEscaped (Escaped digit) digit Source #
Instance details Defined in Waargonaut.Types.JChar.Escaped Methods _Escaped :: Prism' (Escaped digit) (Escaped digit) Source # _QuotationMark :: Prism' (Escaped digit) () Source # _ReverseSolidus :: Prism' (Escaped digit) () Source # _Solidus :: Prism' (Escaped digit) () Source # _Backspace :: Prism' (Escaped digit) () Source # _WhiteSpace :: Prism' (Escaped digit) Whitespace Source # _Hex :: Prism' (Escaped digit) (HexDigit4 digit) Source #

class AsEscaped r digit | r -> digit where Source #

Typeclass for things that may be used as an escaped JChar.

Minimal complete definition

_Escaped

Methods

_Escaped :: Prism' r (Escaped digit) Source #

_QuotationMark :: Prism' r () Source #

_ReverseSolidus :: Prism' r () Source #

_Solidus :: Prism' r () Source #

_Backspace :: Prism' r () Source #

_WhiteSpace :: Prism' r Whitespace Source #

_Hex :: Prism' r (HexDigit4 digit) Source #

Instances

Instances details

AsEscaped (Escaped digit) digit Source #
Instance details Defined in Waargonaut.Types.JChar.Escaped Methods _Escaped :: Prism' (Escaped digit) (Escaped digit) Source # _QuotationMark :: Prism' (Escaped digit) () Source # _ReverseSolidus :: Prism' (Escaped digit) () Source # _Solidus :: Prism' (Escaped digit) () Source # _Backspace :: Prism' (Escaped digit) () Source # _WhiteSpace :: Prism' (Escaped digit) Whitespace Source # _Hex :: Prism' (Escaped digit) (HexDigit4 digit) Source #
AsEscaped (JChar digit) digit Source #
Instance details Defined in Waargonaut.Types.JChar Methods _Escaped :: Prism' (JChar digit) (Escaped digit) Source # _QuotationMark :: Prism' (JChar digit) () Source # _ReverseSolidus :: Prism' (JChar digit) () Source # _Solidus :: Prism' (JChar digit) () Source # _Backspace :: Prism' (JChar digit) () Source # _WhiteSpace :: Prism' (JChar digit) Whitespace Source # _Hex :: Prism' (JChar digit) (HexDigit4 digit) Source #

Parser

parseEscaped :: (CharParsing f, HeXaDeCiMaL digit) => f (Escaped digit) Source #

Parse an escapted JSON character.

>>> testparse parseEscaped "\\\""
Right QuotationMark

>>> testparse parseEscaped "\\\\"
Right ReverseSolidus

>>> testparse parseEscaped "\\/"
Right Solidus

>>> testparse parseEscaped "\\b"
Right Backspace

>>> testparse parseEscaped "\\f"
Right (WhiteSpace LineFeed)

>>> testparse parseEscaped "\\n"
Right (WhiteSpace NewLine)

>>> testparse parseEscaped "\\r"
Right (WhiteSpace CarriageReturn)

>>> testparse parseEscaped "\\t"
Right (WhiteSpace HorizontalTab)

>>> testparse parseEscaped "\\u1234" :: Either DecodeError (Escaped HeXDigit)
Right (Hex (HexDigit4 HeXDigit1 HeXDigit2 HeXDigit3 HeXDigit4))

>>> testparsetheneof parseEscaped "\\t"
Right (WhiteSpace HorizontalTab)

>>> testparsethennoteof parseEscaped "\\tx"
Right (WhiteSpace HorizontalTab)

Conversion

escapedToChar :: Escaped HeXDigit -> Char Source #

Convert an Escaped character to a Haskell Char

charToEscaped :: Char -> Maybe (Escaped HeXDigit) Source #

Attempt to convert a Haskell Char to an Escaped JSON character