I've realised that there are text transformations I can do in markdown that often aren't possible in rich text.
E.g. from
[foo bar](https://example.com/)
to
foo [bar](https://example.com/)
Rich text usually forces me to remove the old link then highlight the new range.
miniblog.
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1
It's really satisfying fixing crashes in rust-analyzer. You can start from a panic message and dig until you've got a tiny Rust program that triggers the problem.
(It's usually an issue with incomplete source files breaking invariants.)
1
LLMs seem to handle dependency upgrades really well.
The task is well-specified, there's usually a build/test suite to check correctness of the modifications, and there's often a changelog they can consume too.
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.