[Haskell-cafe] Extracting exposed modules from an installed library

[Joachim Breitner]

Hi,

Am Mittwoch, den 20.03.2013, 00:34 +0100 schrieb Corentin Dupont:
> Hi Cafe!
> I'm looking for how to extract the exposed modules (as a list of
> strings) from an installed library, giving the library name.
> I can see some structures in Cabal (InstalledPackageInfo) and some
> functions in ghc-pkg.hs in GHC, but nothing readily useable...

$ ghc-pkg field base exposed-modules
exposed-modules: Foreign.Concurrent GHC.Arr GHC.Base GHC.Char
                 GHC.Conc GHC.Conc.IO GHC.Conc.Signal GHC.Conc.Sync
                 GHC.ConsoleHandler GHC.Constants GHC.Desugar GHC.Enum
                 GHC.Environment GHC.Err GHC.Exception GHC.Exts GHC.Fingerprint
                 GHC.Fingerprint.Type GHC.Float GHC.Float.ConversionUtils
                 GHC.Float.RealFracMethods GHC.Foreign GHC.ForeignPtr GHC.Generics
                 GHC.GHCi GHC.Handle GHC.IO GHC.IO.Buffer GHC.IO.BufferedIO
                 GHC.IO.Device GHC.IO.Encoding GHC.IO.Encoding.CodePage
                 GHC.IO.Encoding.Failure GHC.IO.Encoding.Iconv
                 GHC.IO.Encoding.Latin1 GHC.IO.Encoding.Types GHC.IO.Encoding.UTF16
                 GHC.IO.Encoding.UTF32 GHC.IO.Encoding.UTF8 GHC.IO.Exception
                 GHC.IO.FD GHC.IO.Handle GHC.IO.Handle.FD GHC.IO.Handle.Internals
                 GHC.IO.Handle.Text GHC.IO.Handle.Types GHC.IO.IOMode GHC.IOArray
                 GHC.IOBase GHC.IORef GHC.IP GHC.Int GHC.List GHC.MVar GHC.Num
                 GHC.PArr GHC.Pack GHC.Ptr GHC.Read GHC.Real GHC.ST GHC.Stack
                 GHC.Stats GHC.Show GHC.Stable GHC.Storable GHC.STRef GHC.TypeLits
                 GHC.TopHandler GHC.Unicode GHC.Weak GHC.Word System.Timeout
                 GHC.Event Control.Applicative Control.Arrow Control.Category
                 Control.Concurrent Control.Concurrent.Chan Control.Concurrent.MVar
                 Control.Concurrent.QSem Control.Concurrent.QSemN
                 Control.Concurrent.SampleVar Control.Exception
                 Control.Exception.Base Control.Monad Control.Monad.Fix
                 Control.Monad.Instances Control.Monad.ST Control.Monad.ST.Safe
                 Control.Monad.ST.Unsafe Control.Monad.ST.Lazy
                 Control.Monad.ST.Lazy.Safe Control.Monad.ST.Lazy.Unsafe
                 Control.Monad.ST.Strict Control.Monad.Zip Data.Bits Data.Bool
                 Data.Char Data.Complex Data.Dynamic Data.Either Data.Eq Data.Data
                 Data.Fixed Data.Foldable Data.Function Data.Functor Data.HashTable
                 Data.IORef Data.Int Data.Ix Data.List Data.Maybe Data.Monoid
                 Data.Ord Data.Ratio Data.STRef Data.STRef.Lazy Data.STRef.Strict
                 Data.String Data.Traversable Data.Tuple Data.Typeable
                 Data.Typeable.Internal Data.Unique Data.Version Data.Word
                 Debug.Trace Foreign Foreign.C Foreign.C.Error Foreign.C.String
                 Foreign.C.Types Foreign.ForeignPtr Foreign.ForeignPtr.Safe
                 Foreign.ForeignPtr.Unsafe Foreign.Marshal Foreign.Marshal.Alloc
                 Foreign.Marshal.Array Foreign.Marshal.Error Foreign.Marshal.Pool
                 Foreign.Marshal.Safe Foreign.Marshal.Utils Foreign.Marshal.Unsafe
                 Foreign.Ptr Foreign.Safe Foreign.StablePtr Foreign.Storable Numeric
                 Prelude System.Console.GetOpt System.CPUTime System.Environment
                 System.Exit System.IO System.IO.Error System.IO.Unsafe System.Info
                 System.Mem System.Mem.StableName System.Mem.Weak
                 System.Posix.Internals System.Posix.Types
                 Text.ParserCombinators.ReadP Text.ParserCombinators.ReadPrec
                 Text.Printf Text.Read Text.Read.Lex Text.Show Text.Show.Functions
                 Unsafe.Coerce


Greetings,
Joachim

-- 
Joachim "nomeata" Breitner
Debian Developer
  nomeata at debian.org | ICQ# 74513189 | GPG-Keyid: 4743206C
  JID: nomeata at joachim-breitner.de | http://people.debian.org/~nomeata

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