Pratik Karki c784ba5110 Fix FormatSelections to only format selected ranges, not entire document (#51593)
When `editor: format selections` get invoked, the Prettier and external
formatter branches in `format_buffer_locally` ignored the selection
ranges entirely, causing the whole document to be formatted.

- Thread selection ranges as UTF-16 offsets through to Prettier via
`rangeStart/rangeEnd` options in the format request.
- Skip external formatters when ranges are present, since they have no
mechanism for range formatting.
- Create diff edits and apply them for JSON-like languages. For
single-expression languages like JSON, it wasn't respecting the range
commands from Prettier. So, filter the diff edits returned by Prettier
to retain only those overlapping with the user's selection byte ranges,
ensuring changes outside the selection are never applied.

Part of #25796 

Before you mark this PR as ready for review, make sure that you have:
- [x] Added a solid test coverage and/or screenshots from doing manual
testing
- [x] Done a self-review taking into account security and performance
aspects
- [x] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- Fixed FormatSelections to only format selected ranges, not the entire
document where prettier is supported.

Current Behaviour:

[original
behaviour.webm](https://github.com/user-attachments/assets/d5f0cb48-4c3f-44aa-89a9-975f31fce92d)

New Behaviour:

[new
behaviour.webm](https://github.com/user-attachments/assets/41e04b90-f37f-43e1-b8ed-4622684454b1)

---------

Signed-off-by: Pratik Karki <pratik@prertik.com>
2026-03-31 12:48:22 +03:00
2026-01-22 23:57:26 +05:30
WIP
2023-12-14 09:25:14 -07:00
2024-09-30 17:46:21 -04:00
2026-02-03 20:31:02 -07:00
2025-02-04 09:02:59 -05:00
2025-02-04 09:02:59 -05:00
2026-01-06 12:49:51 -08:00
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

Zed CI

Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.


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