Hell: Shell scripting Haskell dialect

Hell is a shell scripting language that is a tiny dialect of Haskell that I wrote for my own shell scripting purposes.

#!/usr/bin/env hell
main = do
  Text.putStrLn "Please enter your name and hit ENTER:"
  name <- Text.getLine
  Text.putStrLn "Thanks, your name is: "
  Text.putStrLn name

Overview

• Use a faithful Haskell syntax parser.
• It has no imports/modules/packages.
• It doesn’t support recursive definitions, but can use fix to do so.
• It supports basic type-classes (Eq, Ord, Show, Monad), which are needed for e.g. List.lookup and familiar equality things.
• It does not support polytypes.
• It use all the same names for things (List.lookup, Monad.forM, Async.race, etc.) that are already used in Haskell.

To read more, see my blog post about Hell.