Data.Digit.Dd

Documentation

class Dd d where

Minimal complete definition

dd

Methods

dd :: Prism' d ()

xd :: d

Instances

Dd ()

Methods

dd :: Prism' () ()

xd :: ()

Dd HeXDigit

Methods

dd :: Prism' HeXDigit ()

xd :: HeXDigit

Dd HexDigit

Methods

dd :: Prism' HexDigit ()

xd :: HexDigit

parsed :: (Dd d, CharParsing p) => p d

>>> 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