> I've been wondering if there have been attempts to provide some
> library/API or similiar facility (other than pointing your web-browser
> to the static Haddock HTML report) for looking up Haddock comments
> associated with Haskell symbols?
>
> As an obvious application: When coding in dynamic languages
> (e.g. Python, Elisp, or GNU R to name a few), I've learned to appreciate
> the ability to lookup up documentation interactively from the
> tab-completing REPL w/o having to "switch context/focus" to different
> application (as I currently do: I have to switch from GHCi to a
> web-browser and first locate the appropriate package/module and then
> find the symbol I'm interested in).
I have the following in my .ghci:
-- hoogle integration
:def hoogle \q -> return $ ":! hoogle --color=true --count=15 \"" ++ q ++
"\""
:def doc \q -> return $ ":! hoogle --color=true --info \"" ++ q ++
"\""
Which can be used from GHCi like so:
Prelude> :doc map
Searching for: map
Prelude map :: (a -> b) -> [a] -> [b]
map f xs is the list obtained by applying f to each element of xs, i.e.,
> map f [x1, x2, ..., xn] == [f x1, f x2, ..., f xn]
> map f [x1, x2, ...] == [f x1, f x2, ...]
From package base
map :: (a -> b) -> [a] -> [b]
Have a look at [1].
Cheers,
Simon
[1] http://www.haskell.org/haskellwiki/Hoogle#GHCi_Integration
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