miniblog.

I'm adding a += operator to my programming language, because writing `x = x + 1` is tedious. This opens the tricky design question of which operators should support this. Is += and -= sufficient, or do you expect things like >>= and **= to be available?

ASTs typically discard comments, and that's usually what you want. The only time (AFAICS) that preserving comments is useful is for writing a code formatter. Could you write a formatter in terms of a list of lexemes? A CST is a non-trivial bit of code for one use case.

What are the most interesting upcoming scripting languages? Scripting remains an important part of the programming language ecosystem. Optimise time to first feature. Allow mutation of the running system to experiment. Interactive inspection of data.