[chantepierre]

I am currently building a tiny language designed only for data manipulation in a long-term personal project : data made of number/strings/booleans in maps or lists goes in, can be re-shaped, and goes out. It's written in Typescript as part of a web app.

It just has map/list access & creation, string manipulation & concatenation, basic arithmetic/comparison, lambdas as first-class values, function calls. No way to do I/O, just data in-data out.

I need some non-programmers friends to collaborate on the tiny data transforms and it is quite easy to write a 1:1 text <> visual editor for this language thanks to its limited features, allowing to go from visual to text or text to visual. The exercise in itself is interesting and worth it.

I think I wouldn't do that in a commercial context though.