Wilfred Hughes on Nostr: ASTs typically discard comments, and that's usually what you want. The only time ...

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.