* Macros WIP
`helix_term::compositor::Callback` changed to take a `&mut Context` as
a parameter for use by `play_macro`
* Default to `@` register for macros
* Import `KeyEvent`
* Special-case shift-tab -> backtab in `KeyEvent` conversion
* Move key recording to the compositor
* Add comment
* Add persistent display of macro recording status
When macro recording is active, the pending keys display will be shifted
3 characters left, and the register being recorded to will be displayed
between brackets — e.g., `[@]` — right of the pending keys display.
* Fix/add documentation
Following the addition of `xtask`, `cargo run` has multiple possible
targets, necessitating the usage of `cargo run --bin hx` to run Helix
during development. This allows `cargo run` to be used to run `hx`.
1. pressing o on a line with no indentation will open a new line as
expected, but esc will then delete the line altogether
2. the kill_line behavior happens after insert mode changes are already
commited to history, and the change isn't commited. pressing u after
this will break highlighting & undo history
This reverts commit c08d2fae58.
Tree sitter returns an index referring to the position of the scope in
the scopes array. We can use that same index to avoid a hashmap lookup
and instead store the styles in an array.
This currently stores the styles in both a map and an array because the
UI still uses hashmap lookups, but it's a reasonable tradeoff.
* restore indent when press esc right after open a new line
* add comment for restore_indent
* fix, and make kill to line end behaves like emacs
* update comment
* fix comment
* adjust cancel restore_indent situation
* check esc logic in mode transaction
* improve comment
* add more check for dedent
* update comment
* use matches to check for last_cmd
* no need to introduct CommandFun type
