Yifeng Xu 4a9a863cee Improve auto indentation in situations with multiline comments present (#61669)
## Objective

Fix incorrect indentation after multiline comments and when pasting
multiline code immediately after a comment.

Fixes #61668 
Fixes #55597 

## Solution

- Calculate logical indentation from the opening line of block comments,
documentation comments, and multiline strings.
- Reuse the logical indentation for both newline handling and multiline
paste auto-indent.
- Preserve the relative indentation of pasted multiline content while
using the logical indentation of the surrounding code as its basis.

## Testing

- `cargo test -p editor --lib test_newline -- --nocapture`
- `cargo test -p editor --lib test_paste -- --nocapture`
- `cargo test -p language --lib test_autoindent -- --nocapture`
- `./script/clippy -p language`
- `./script/clippy -p editor`
- Regression coverage includes Go, TypeScript, and Python comment/string
indentation, plus Go multiline paste after a documentation comment.
- No platform-specific behavior is involved; the fix is implemented in
shared editor and language auto-indent logic.

The demonstration video is as follows:


https://github.com/user-attachments/assets/2a2ee494-d4ea-4b16-8644-f868b9f31272


https://github.com/user-attachments/assets/9487f893-e584-448d-a1c7-a94c76c03f5b


## Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

---

Release Notes:

- Fixed incorrect indentation after multiline comments and multiline
paste.
2026-08-26 14:33:25 +00:00
2026-08-12 08:35:43 +00:00
2026-01-22 23:57:26 +05:30
2026-08-26 14:33:14 +00:00
WIP
2023-12-14 09:25:14 -07:00
2026-08-09 22:29:52 +00:00
2026-08-09 22:29:52 +00:00
2025-02-04 09:02:59 -05:00
2025-10-27 13:27:59 -04:00
2025-10-17 18:58:14 +00:00
2026-03-17 16:34:35 +00:00

Zed

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