[Haskell-cafe] An interesting paper from Google

[Ben Millwood]

On Fri, Oct 15, 2010 at 9:28 PM, Andrew Coppin
<andrewcoppin at btinternet.com> wrote:
> I'm still quite
> surprised that there's no tool anywhere which will trivially print out the
> reduction sequence for executing an expression. You'd think this would be
> laughably easy, and yet nobody has done it yet.
>

I tried to do something a bit like this:

http://github.com/benmachine/stepeval

but it could be charitably described as "crude": has three failing
testcases and a bagful of unimplemented functionality.