Getting exposed modules

[ivan-m]

In haskell-session-installed-modules, there's an egrep command that's meant to get the exposed-modules from ghc-pkg dump. Unfortunately, it doesn't seem to always work due to the uncertain formatting.

For example, I have the following output from ghc-pkg dump:

...
exposed-modules:
    Data.IntMap Data.IntMap.Lazy Data.IntMap.Strict Data.IntSet
    Data.Map Data.Map.Lazy Data.Map.Strict Data.Set Data.Graph
    Data.Sequence Data.Tree
...

Note that there are only four spaces there, not 17 as expected; it seems that when this was written ghc-pkg dump would format the output such that the first module was listed after exposed-modules: and then others would be indented to start at the same column.

I'm not sure if using egrep is the correct approach here: it might need to be a matter of dropping lines until one starting with exposed-modules: is reached, taking lines that are space-indented and then repeating until end of input is reached.

[gracjan]

The code in there is real crap. It would be easier to read it into an emacs buffer and find the necessary information there.