zed/crates/vim
0x2CA 26be440d99
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vim: Add Subword Textobject (#22387)
Closes #22761

[Vim: subword text object?
#22280](https://github.com/zed-industries/zed/discussions/22280)

Release Notes:

- Added Vim SubWord TextObject

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
2025-01-14 03:34:49 +00:00
..
src vim: Add Subword Textobject (#22387) 2025-01-14 03:34:49 +00:00
test_data vim: Fix vim delete to line (#23053) 2025-01-14 03:07:47 +00:00
Cargo.toml
LICENSE-GPL
README.md

This contains the code for Zed's Vim emulation mode.

Vim mode in Zed is supposed to primarily "do what you expect": it mostly tries to copy vim exactly, but will use Zed-specific functionality when available to make things smoother. This means Zed will never be 100% vim compatible, but should be 100% vim familiar!

The backlog is maintained in the #vim channel notes.

Testing against Neovim

If you are making a change to make Zed's behavior more closely match vim/nvim, you can create a test using the NeovimBackedTestContext.

For example, the following test checks that Zed and Neovim have the same behavior when running * in visual mode:

#[gpui::test]
async fn test_visual_star_hash(cx: &mut gpui::TestAppContext) {
    let mut cx = NeovimBackedTestContext::new(cx).await;

    cx.set_shared_state("ˇa.c. abcd a.c. abcd").await;
    cx.simulate_shared_keystrokes(["v", "3", "l", "*"]).await;
    cx.assert_shared_state("a.c. abcd ˇa.c. abcd").await;
}

To keep CI runs fast, by default the neovim tests use a cached JSON file that records what neovim did (see crates/vim/test_data), but while developing this test you'll need to run it with the neovim flag enabled:

cargo test -p vim --features neovim test_visual_star_hash

This will run your keystrokes against a headless neovim and cache the results in the test_data directory.

Testing zed-only behavior

Zed does more than vim/neovim in their default modes. The VimTestContext can be used instead. This lets you test integration with the language server and other parts of zed's UI that don't have a NeoVim equivalent.