Data.Digit.D3

Documentation

class D3 d where

Minimal complete definition

d3

Methods

d3 :: Prism' d ()

x3 :: d

Instances

D3 ()

Methods

d3 :: Prism' () ()

x3 :: ()

D3 DecDigit

Methods

d3 :: Prism' DecDigit ()

x3 :: DecDigit

D3 HEXDigit

Methods

d3 :: Prism' HEXDigit ()

x3 :: HEXDigit

D3 HeXDigit

Methods

d3 :: Prism' HeXDigit ()

x3 :: HeXDigit

D3 HexDigit

Methods

d3 :: Prism' HexDigit ()

x3 :: HexDigit

D3 OctDigit

Methods

d3 :: Prism' OctDigit ()

x3 :: OctDigit

parse3 :: (D3 d, CharParsing p) => p d

>>> parse (parse3 <* eof) "test" "3" :: Either ParseError DecDigit
Right DecDigit3

>>> parse parse3 "test" "3xyz" :: Either ParseError DecDigit
Right DecDigit3

>>> isn't _Right (parse parse3 "test" "xyz" :: Either ParseError DecDigit)
True