zed/crates/vim
Wind 9723ca95e3
Vim mode: make motion::EndOfLine works with times. (#8591)
Release Notes:

- Fixed `$` in Vim mode not taking a numeric argument (i.e. `2$` or
`4$`) ([#8007](https://github.com/zed-industries/zed/issues/8007)).

---------

Co-authored-by: Thorsten Ball <mrnugget@gmail.com>
2024-03-01 14:00:31 +01:00
..
src Vim mode: make motion::EndOfLine works with times. (#8591) 2024-03-01 14:00:31 +01:00
test_data Vim mode: make motion::EndOfLine works with times. (#8591) 2024-03-01 14:00:31 +01:00
Cargo.toml Cleanup dependencies (part 4) (#8468) 2024-02-27 20:41:49 +02:00
LICENSE-GPL chore: Change AGPL-licensed crates to GPL (except for collab) (#4231) 2024-01-24 00:26:58 +01:00
README.md Don't toggle WHOLE_WORD in vim search 2024-01-19 10:58:55 -07:00

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 behaviour 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 behaviour 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 behaviour

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.