A modern programming language that makes developers happier.

kotlinlang

To improve propCheck's output I wrote a small pretty-print library. It's nothing special yet, but the basics are there. It's pretty early work, but I don't think there are any other pretty print libraries for kotlin so if you need one give this a try, it's gonna improve fast the next few days. Internally in propCheck I have a parser that can read generic toString (especially data classes toString) output, diffs that and displays it using this.
<https://github.com/1Jajen1/kotlin-pretty>

The parser for reading toString output is based on a parser combinator library I have been working on (it's a very basic port of megaparsec) which will also be open source in a few days. Finally the pretty printing of generic toString will also eventually see light as an open source project