[POC] Add parser for CSS selectors#1

Draft

mattwca wants to merge 8 commits intomainfrom

add-selector-parser

Commits on Dec 19, 2025

- Add tokenizer + initial work on parser
Matt Carter
committed

Commits on Dec 21, 2025

- Add jest support
Matt Carter
committed

Commits on Dec 23, 2025

- Get parser working
Matt Carter
committed

Commits on Dec 25, 2025

- Clean up files and refactoring into separate files
Matt Carter
committed
- More cleaning up
Matt Carter
committed

Commits on Dec 26, 2025

- Switch to parsing ast nodes in all parser fns
Matt Carter
committed

Commits on Dec 27, 2025

- Improve error handling, keep track of deepest error encountered and surface to the user
Matt Carter
committed
- Get tests passing
Matt Carter
committed