Christian Maeder
Who feels responsible for including something into Data.Set and Data.Map (recently I've proposed a change for Set.intersection and others also made suggestions)?
I checked in a Read instance for Data.Set a few weeks ago, when I needed one. An addition like this is rather obvious, so I doubt it needs any discussion. For other changes (like Set.intersection), some discussion might be desirable, but the best proposal is an implemented one, which others can then improve. Btw, I didn't add a Read instance for Data.Map.
import GHC.Read
This module isn't even listed under http://www.haskell.org/ghc/docs/latest/html/libraries/index.html
As it should not be. It is compiler-specific. The hierarchical libraries are supposed to be portable. Regards, Malcolm