Convert between jass files and jass-ast stored as json.
Use j2j to-json input.j to print the jass-ast of input.j as json to stdout and
use j2j to-jass input.json to print the jass script represented by the
jass-ast stored json file input.json to stdout.
The json format is not yet documented and might be subject to change.
You need a working haskell setup with ghc and cabal. Then clone this repo and
run cabal build. You can also use cabal run j2j to run it directly.