maybeRead in base

David McGillicuddy dmcgill9071 at gmail.com
Tue Aug 14 11:32:19 CEST 2012


What about (.:)*? Just looking at Hayoo quickly, at least half a dozen
libraries seem to have defined it and it's a permanent feature on lambdabot.

*(.:) :: (c -> d) -> (a -> b -> c) -> a -> b -> d
 (.:) = (.) (.) (.)

David

On Tue, Aug 14, 2012 at 7:54 AM, Simon Hengel <sol at typeful.net> wrote:

> On Mon, Aug 13, 2012 at 10:31:19PM -0400, Tom Murphy wrote:
> > It would be great to have maybeRead in base in time for the next Haskell
> > Platform release. There's been talk about including it several times, but
> > it's remained as a utility function in other libraries (Network.CGI, for
> > example, if I'm remembering right).
>
> It's in base-4.6.0.0, but it's called readMaybe (personally, I don't
> like that name, but I guess it's for consistency with readEither).
>
> Cheers,
> Simon
>
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