On Sat, Jun 6, 2015 at 10:26 AM, Vlatko Basic <vlatko.basic@gmail.com> wrote:

Maybe a slightly changed syntax like this could be less confusing

import Data.Map (Map) andAs M (...)

or

import Data.Map (Map) and as M (...)

It is clear (IMHO) what is coming from where, and both lists are at the end of their part, so can be written nicely in several rows, if needed.

import Data.Map (Map)
andAs M (lengthy,
list)

Parser can also easily distinguish between the current and the new syntax so they can coexist, so no backward compatibility problem.

I much prefer a syntax with a bit more words, like this one. The original proposal is simply impossible to understand without reading a manual. It has at least two equally valid interpretations.

Adding one or two words like in this examples makes it possible, without reading a manual, to distinguish between possible interpretations. I think that must be a minimal requirement for such a syntax extension. Nobody needs to hire a language lawyer to understand a python import statement. That shouldn't be needed for Haskell either.

Alexander