Safe Haskell	None
Language	Haskell2010

Data.Digit.D3

Synopsis

Documentation

class D3 d where Source #

Minimal complete definition

Methods

Instances

D3 () Source #
Methods d3 :: Prism' () () Source # x3 :: () Source #
D3 a => D3 (Digit3 a) Source #
Methods d3 :: Prism' (Digit3 a) () Source # x3 :: Digit3 a Source #
D3 d => D3 (Either d x) Source #
Methods d3 :: Prism' (Either d x) () Source # x3 :: Either d x Source #

>>> parse (parse3 <* eof) "test" "3" :: Either ParseError (Digit3 ())
Right (Digit3 ())

>>> parse parse3 "test" "3xyz" :: Either ParseError (Digit3 ())
Right (Digit3 ())

>>> isn't _Right (parse parse3 "test" "xyz" :: Either ParseError (Digit3 ()))
True

\c -> c /= '3' ==> isn't _Right (parse parse3 "test" [c] :: Either ParseError (Digit3 ()))