hjkl_vim/
operator.rs

1/// Operator identity carried by the reducer. Kept independent of
2/// `hjkl-engine` so `hjkl-vim` has no upstream dependency.
3///
4/// The five operators that can be entered directly from Normal mode via bare
5/// `d` / `y` / `c` / `>` / `<`, plus the four g-prefix case/reflow operators
6/// (`gU` / `gu` / `g~` / `gq`) bridged through the reducer in chunk 2c-v.
7/// Fold (`zf`) does not enter bare op-pending so it is omitted entirely.
8#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9pub enum OperatorKind {
10    /// `d` — delete.
11    Delete,
12    /// `y` — yank.
13    Yank,
14    /// `c` — change (delete + enter Insert mode).
15    Change,
16    /// `>` — indent.
17    Indent,
18    /// `<` — outdent.
19    Outdent,
20    /// `gU` — uppercase.
21    Uppercase,
22    /// `gu` — lowercase.
23    Lowercase,
24    /// `g~` — toggle case.
25    ToggleCase,
26    /// `gq` — reflow / format text.
27    Reflow,
28}
29
30impl OperatorKind {
31    /// The doubled-letter char for this operator.
32    ///
33    /// Used by the `AfterOp` reducer arm to detect the line-op doubled form:
34    /// `dd`, `yy`, `cc`, `>>`, `<<`, `gUU`, `guu`, `g~~`, `gqq`.
35    pub(crate) fn double_char(self) -> char {
36        match self {
37            OperatorKind::Delete => 'd',
38            OperatorKind::Yank => 'y',
39            OperatorKind::Change => 'c',
40            OperatorKind::Indent => '>',
41            OperatorKind::Outdent => '<',
42            OperatorKind::Uppercase => 'U',
43            OperatorKind::Lowercase => 'u',
44            OperatorKind::ToggleCase => '~',
45            OperatorKind::Reflow => 'q',
46        }
47    }
48}
hjkl_vim/operator.rs

hjkl_vim/
operator.rs
