Data.Digit.DC

Documentation

class DC d where

Minimal complete definition

dC

Methods

dC :: Prism' d ()

xC :: d

Instances

DC ()

Methods

dC :: Prism' () ()

xC :: ()

DC HEXDigit

Methods

dC :: Prism' HEXDigit ()

xC :: HEXDigit

DC HeXDigit

Methods

dC :: Prism' HeXDigit ()

xC :: HeXDigit

parseC :: (DC d, CharParsing p) => p d

>>> 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