On Wed, Nov 17, 2010 at 9:46 PM, Duncan Coutts
If we accept 3 then in the spirit of "export a symbol from as few modules as possible", you may expect a fourth proposal: Unexport the String operations: lines, words, unlines and unwords from Data.List. However I think this will break lots of programs. I have no problem also discussing this one though.
Yeah, I agree in principle, but probably best to leave that for later.
It obviously needs to go through a deprecation phase. It would be great if we could {-# DEPRECATE #-} an export? So something like: module Data.List ( ... {-# DEPRECATE lines "Exported from Data.String instead" #-} , lines ... ) where ... lines = ... ... Alternatively, we could just {-# DEPRECATE #-} the functions in Data.List and define equivalently named new ones in Data.String. What about doing this for a base-4.3.1 ? Regards, Bas