In #25005 we added regex syntax highlighting to search; but the existing
regex grammar highlighted every character as a string which was hard to
read.
This flips so that characters are not highlighted, and brackets, etc.
are.
<img width="346" alt="Screenshot 2025-03-03 at 14 39 35"
src="https://github.com/user-attachments/assets/f7d3ae9c-fb5c-45eb-a5e9-41a330fbe940"
/>
Release Notes:
- Fixed regex search box being overly green
Closes#18722
- Replace the `@escape` capture name with `@string.escape` for escape
sequences in Go, Python, Regex, Racket, Ruby, and Scheme.
- Rust
- Add syntax highlighting for escape sequences. Close#18722
- Fix the issue where `@punctuation.delimiter` is being overwritten by
`@operator`.
- Add the period (".") to `@punctuation.delimiter`.
Release Notes:
- N/A
