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