Data.Digit.D8

Documentation

class D8 d where

Minimal complete definition

d8

Methods

d8 :: Prism' d ()

x8 :: d

Instances

D8 ()

Methods

d8 :: Prism' () ()

x8 :: ()

D8 DecDigit

Methods

d8 :: Prism' DecDigit ()

x8 :: DecDigit

D8 HEXDigit

Methods

d8 :: Prism' HEXDigit ()

x8 :: HEXDigit

D8 HeXDigit

Methods

d8 :: Prism' HeXDigit ()

x8 :: HeXDigit

D8 HexDigit

Methods

d8 :: Prism' HexDigit ()

x8 :: HexDigit

parse8 :: (D8 d, CharParsing p) => p d

>>> parse (parse8 <* eof) "test" "8" :: Either ParseError DecDigit
Right DecDigit8

>>> parse parse8 "test" "8xyz" :: Either ParseError DecDigit
Right DecDigit8

>>> isn't _Right (parse parse8 "test" "xyz" :: Either ParseError DecDigit)
True