This is completely irrelevant, but the .chs extension is already taken by the c2hs tool. Cheers, Edward Excerpts from Niklas Hambüchen's message of Tue Sep 10 00:30:41 -0700 2013:
Impressed by the productivity of my Ruby-writing friends, I have recently come across Cucumber: http://cukes.info
It is a great tool for specifying tests and programs in natural language, and especially easy to learn for beginners.
I propose that we add a Cucumber syntax for Haskell, with the extension ".chs", next to .hs and .lhs.
Code written in cucumber syntax is concise and easy to read: You can find some example code in https://gist.github.com/nh2/6505995. Quoting from that:
Feature: The Data.List module
In order to be able to use lists As a programmer I want a module that defines list functions
Scenario: Defining the function foldl Given I want do define foldl Which has the type (in brackets) a to b to a (end of brackets), to a, to list of b, to a And my arguments are called f, acc, and l When l is empty Then the result better be acc Otherwise l is x cons xs Then the result should be foldl f (in brackets) f acc x (end of brackets) xs
PS: People even already started a testing framework for Haskell in it: https://github.com/sol/cucumber-haskell#cucumber-for-haskell