Proposal (Trac ticket #3524): Add mfilter to Control.Monad

[Jon Fairbairn]

Following on from the discussion of #3453, I propose the addition of
mfilter to Control.Monad. It's just List.filter for any MonadPlus.

I'd rather that we didn't have List.filter, and called this filter, but
(a) I can't see that happening and (b) the naming scheme for
Control.Monad is quite explicit.

Time limit for discussion: 1 October.

--
Jón Fairbairn                                 Jon.Fairbairn@...

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[Jon Fairbairn]

Jon Fairbairn <jon.fairbairn@...> writes:

> Following on from the discussion of #3453, I propose the addition of
> mfilter to Control.Monad. It's just List.filter for any MonadPlus.

[...]

> Time limit for discussion: 1 October.

That looks like nem. con. to me.  Please can someone commit it?

--
Jón Fairbairn                                 Jon.Fairbairn@...


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