Thank you two. I have got it working. Compared to ri, I think:
The pro is I could find the package that I want even I do not know it.
The con is I'd have to manually update its data.


On Mon, Nov 26, 2012 at 9:21 AM, John Wiegley <johnw@fpcomplete.com> wrote:
>>>>> Tikhon Jelvis <tikhon@jelv.is> writes:

> Have you tried Hoogle? I know you can install it locally and use it from
> GHCi or Emacs. I'm not familiar with ri, but from your description I think a
> local Hoogle would serve the same purpose with the added benefit of being
> able to search by types.

> Here's the wiki page about it: http://www.haskell.org/haskellwiki/Hoogle

See also:

    http://newartisans.com/2012/09/running-a-fully-local-hoogle/

With this setup I can use ":doc head" in my ghci sessions, and see docs very
similar to what ri would show.

--
John Wiegley
FP Complete                         Haskell tools, training and consulting
http://fpcomplete.com               johnw on #haskell/irc.freenode.net

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