[Haskell-cafe] Re: proposal: point free case expressions

[Eugene Kirpichov]

How about \{Left err -> print err; Right msg -> putStrLn msg} ?

2009/11/5 Stefan Monnier <monnier at iro.umontreal.ca>:
>> We could really use a case statement in which we skip the scrutinee and make
>> (case of {})' be syntactic sugar for `(\x -> case x of {})'.
>
>> So we could write:
>
>>> myFunc = anotherFunc $ case of
>>> Left err -> print err
>>> Right msg -> putStrLn msg
>
>> A minor syntactical addition, a big win!
>
> Since this "case" really defines a function, it seems like it would make
> more sense to allow defining anonymous functions by pattern matching.
> I.e. instead of "case of", I think it should use "λ", "\", "fn", or ...
>
>
>        Stefan
>
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-- 
Eugene Kirpichov
Web IR developer, market.yandex.ru