API for looking-up/retrieving Haddock comments?

[Herbert Valerio Riedel]

Simon Hengel <sol at typeful.net> writes:

[...]

> 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 ++ "\""

[...]

thanks, this already looks very promising; there's just a few minor issues
I'm a bit dissatisfied with the GHCi integration:

 1. it doesn't take into account the currently visible module namespaces that GHCi
    has currently loaded (as opposed to `:info` and `:type`):

,----
| Prelude> import Data.IntMap
| 
| Prelude Data.IntMap> :info fromList
| fromList :: [(Key, a)] -> IntMap a 	-- Defined in `Data.IntMap'
| 
| Prelude Data.IntMap> :type  fromList
| fromList :: [(Key, a)] -> IntMap a
| 
| Prelude Data.IntMap> :doc fromList
| Searching for: fromList
| Data.HashTable fromList :: Eq key => (key -> Int32) -> [(key, val)] -> IO (HashTable key val)
| 
| Convert a list of key/value pairs into a hash table. Equality on keys
| is taken from the Eq instance for the key type.
| 
| From package base
| fromList :: Eq key => (key -> Int32) -> [(key, val)] -> IO (HashTable key val)
| 
| Prelude Data.IntMap> 
`----

 2. tab-completion (as it works for `:type` and `:doc`) doesn't extend
    to `:doc`


I guess both items could be improved upon by extending GHCi to provide
an additional `:def` facility tailored to Haskell symbols allowing to
pass more meta-information (such as package and module information) into
the resulting command string... would something like that have any
chance of being accepted upstream?

cheers,
  hvr