Its currently in a private bitbucket repo. I can give you the parser though, MIT licensed.
ParserUtils is where maybeIndented and indented are. They make indentation just work. There currently overzealous with backtracking though, makes errors kinda shit. Working on that at somepoint.
https://gist.github.com/xavierzwirtz/99479a11f1eefd3215467f7...