[Haskell-cafe] Re: Derived Read instance for types with infix constructors (ghc 6.4.1)

Neil Mitchell wrote:

...

*Main> show $ A `And` A "A And A"

For me, using GHCi 6.4.2 + Windows, I get: "A `And` A"

I installed GHC 6.4.2 now (on Linux). It really does print "A `And` A", but still doesn't read it. Would you agree that GHC doesn't conform to the Haskell Report here? In fact it seems to produce a Read instance with no valid input for it! Daniel Fischer wrote:

Put the constructor in the prefix position in the data definition and the derived Read instance of ghc 6.4.1 will also be able to read the prefix form.

This might be a solution, but I was hoping that I can have a Read instance that would read the infix form - this would be more natural for the data I have (like logical expressions). Cheers, Misha