Merge pull request 'feat: implementing the repeat commands! Tested' (#2) from feature/find into master
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Reviewed-on: #2
This commit is contained in:
Hayden Hargreaves 2026-03-13 23:01:40 -07:00
commit edbed61949
9 changed files with 1033 additions and 39 deletions

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@ -39,6 +39,7 @@
export GOOS=linux
export GOARCH=amd64
export CGO_CFLAGS=-Wno-error=cpp;
export CGO_ENABLED=0
# Exec zsh to replace the current shell process with zsh.
# This ensures your prompt and zsh configurations load correctly.

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@ -10,6 +10,7 @@ type FindChar struct {
Forward bool
Inclusive bool
Count int
Repeated bool
}
func (m FindChar) WithChar(char string) Motion {
@ -22,18 +23,21 @@ func (m FindChar) Type() core.MotionType {
return core.CharwiseInclusive
}
return core.CharwiseExclusive
}
// WithCount sets the count (required by Repeatable interface)
func (f FindChar) WithCount(n int) Action {
f.Count = n
return f
func (m FindChar) WithCount(n int) Action {
m.Count = n
return m
}
func (a FindChar) Execute(m Model) tea.Cmd {
// Get the line
// Get the current position, moved based on inputs
// Required to allow ';' and '.'
// But we should not override when we repeat the action
if !a.Repeated {
m.SetLastFind(a.Char, a.Forward, a.Inclusive)
}
win := m.ActiveWindow()
buf := win.Buffer
@ -44,8 +48,13 @@ func (a FindChar) Execute(m Model) tea.Cmd {
return nil
}
forwardStart := col + 1
if a.Repeated && !a.Inclusive {
forwardStart = col + 2
}
if a.Forward {
for x := col; x < len(line); x++ {
for x := forwardStart; x < len(line); x++ {
if string(line[x]) == a.Char {
if a.Count == 1 {
if a.Inclusive {
@ -61,8 +70,13 @@ func (a FindChar) Execute(m Model) tea.Cmd {
}
}
backwardStart := col - 1
if a.Repeated && !a.Inclusive {
backwardStart = col - 2
}
if !a.Forward {
for x := col; x >= 0; x-- {
for x := backwardStart; x >= 0; x-- {
if string(line[x]) == a.Char {
if a.Count == 1 {
if a.Inclusive {
@ -81,3 +95,43 @@ func (a FindChar) Execute(m Model) tea.Cmd {
return nil
}
type RepeatFind struct {
Count int
Reverse bool
}
// Resolve builds the concrete FindChar that this repeat represents.
// The FSM calls this before Execute so that the subsequent Type() call
// returns the correct CharwiseInclusive / CharwiseExclusive value.
func (a RepeatFind) Resolve(m Model) Motion {
// for rev out
// T F T
// F T T
// F F F
// T T F
last := m.GetLastFind()
return FindChar{
Char: last.Char,
Forward: last.Forward != a.Reverse, // Logical XOR
Inclusive: last.Inclusive,
Count: a.Count,
Repeated: true,
}
}
// Type falls back to CharwiseExclusive. In practice the FSM always calls
// Resolve first and uses the returned FindChar, so this is never reached
// during normal operation.
func (a RepeatFind) Type() core.MotionType {
return core.CharwiseExclusive
}
func (m RepeatFind) WithCount(n int) Action {
m.Count = n
return m
}
func (a RepeatFind) Execute(m Model) tea.Cmd {
return a.Resolve(m).Execute(m)
}

View File

@ -22,6 +22,7 @@ type mockModel struct {
commandCursor int
commandError error
commandOutput string
lastFind core.LastFindCommand
}
func newMockModel() *mockModel {
@ -81,10 +82,14 @@ func (m *mockModel) SetBuffers(bufs []*core.Buffer) { m.buffers = bufs }
func (m *mockModel) ActiveBuffer() *core.Buffer { return m.activeWindow.Buffer }
// Insert Mode State
func (m *mockModel) InsertKeys() []string { return m.insertKeys }
func (m *mockModel) SetInsertKeys(keys []string) { m.insertKeys = keys }
func (m *mockModel) SetInsertRecording(count int, action Action) {}
func (m *mockModel) ExitInsertMode() {}
func (m *mockModel) InsertKeys() []string { return m.insertKeys }
func (m *mockModel) SetInsertKeys(keys []string) { m.insertKeys = keys }
func (m *mockModel) SetInsertRecording(count int, action Action) {}
func (m *mockModel) ExitInsertMode() {}
func (m *mockModel) SetLastFind(char string, forward, inclusive bool) {
m.lastFind = core.LastFindCommand{Char: char, Forward: forward, Inclusive: inclusive}
}
func (m *mockModel) GetLastFind() *core.LastFindCommand { return &m.lastFind }
// Command Mode State
func (m *mockModel) Command() string { return m.command }
@ -169,10 +174,9 @@ func TestFindCharForward(t *testing.T) {
action.Execute(m)
// Current implementation finds char at cursor position
// In real vim, 'f' skips current position
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("cursor col = %d, want 4", m.ActiveWindow().Cursor.Col)
// Cursor is on 'o' at 4; 'f' skips current position and finds next 'o' at 7
if m.ActiveWindow().Cursor.Col != 7 {
t.Errorf("cursor col = %d, want 7", m.ActiveWindow().Cursor.Col)
}
})
@ -419,9 +423,9 @@ func TestFindCharBackward(t *testing.T) {
action.Execute(m)
// Current implementation finds char at cursor position
if m.ActiveWindow().Cursor.Col != 7 {
t.Errorf("cursor col = %d, want 7", m.ActiveWindow().Cursor.Col)
// Cursor is on 'o' at 7; 'F' skips current position and finds prev 'o' at 4
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("cursor col = %d, want 4", m.ActiveWindow().Cursor.Col)
}
})
@ -1176,9 +1180,10 @@ func TestFindCharForwardWithCount(t *testing.T) {
action.Execute(m)
// Should find 5th 'a' at position 4
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("cursor col = %d, want 4", m.ActiveWindow().Cursor.Col)
// Cursor is on 'a' at 0; 'f' skips it, leaving only 4 more 'a's (1-4).
// Count 5 exceeds available matches, so cursor does not move.
if m.ActiveWindow().Cursor.Col != 0 {
t.Errorf("cursor col = %d, want 0 (count exceeds matches, should not move)", m.ActiveWindow().Cursor.Col)
}
})
@ -1330,13 +1335,10 @@ func TestFindCharBackwardWithCount(t *testing.T) {
action.Execute(m)
// Going backward from position 10, should find 5th 'b' at position 6
// "aaaaa bbbbb"
// 01234567890
// ^ (at 10)
// ^ (5th 'b' backward is at position 6)
if m.ActiveWindow().Cursor.Col != 6 {
t.Errorf("cursor col = %d, want 6", m.ActiveWindow().Cursor.Col)
// Cursor is on 'b' at 10; 'F' skips it, leaving only 4 more 'b's (6-9).
// Count 5 exceeds available matches, so cursor does not move.
if m.ActiveWindow().Cursor.Col != 10 {
t.Errorf("cursor col = %d, want 10 (count exceeds matches, should not move)", m.ActiveWindow().Cursor.Col)
}
})
@ -1479,9 +1481,10 @@ func TestTillCharForwardWithCount(t *testing.T) {
action.Execute(m)
// Should stop before 5th 'a' at position 3 (one before position 4)
if m.ActiveWindow().Cursor.Col != 3 {
t.Errorf("cursor col = %d, want 3", m.ActiveWindow().Cursor.Col)
// Cursor is on 'a' at 0; 't' skips it, leaving only 4 more 'a's (1-4).
// Count 5 exceeds available matches, so cursor does not move.
if m.ActiveWindow().Cursor.Col != 0 {
t.Errorf("cursor col = %d, want 0 (count exceeds matches, should not move)", m.ActiveWindow().Cursor.Col)
}
})
}
@ -1593,9 +1596,10 @@ func TestTillCharBackwardWithCount(t *testing.T) {
action.Execute(m)
// Going backward, should stop after 5th 'b' at position 7 (one after position 6)
if m.ActiveWindow().Cursor.Col != 7 {
t.Errorf("cursor col = %d, want 7", m.ActiveWindow().Cursor.Col)
// Cursor is on 'b' at 10; 'T' skips it, leaving only 4 more 'b's (6-9).
// Count 5 exceeds available matches, so cursor does not move.
if m.ActiveWindow().Cursor.Col != 10 {
t.Errorf("cursor col = %d, want 10 (count exceeds matches, should not move)", m.ActiveWindow().Cursor.Col)
}
})
}
@ -1703,6 +1707,892 @@ func TestFindCharWithChar(t *testing.T) {
})
}
// ==================================================
// RepeatFind — ; (same direction) and , (reverse direction)
//
// Layout used throughout: "hello world"
// 01234567890
// 'h'=0 'e'=1 'l'=2 'l'=3 'o'=4 ' '=5 'w'=6 'o'=7 'r'=8 'l'=9 'd'=10
// ==================================================
// --------------------------------------------------
// ; after f (repeat forward-inclusive)
// --------------------------------------------------
func TestRepeatFind_Semicolon_After_f(t *testing.T) {
// `fo` from col 0 → col 4. `;` should find next 'o' at col 7.
t.Run("basic: lands on next inclusive match", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 4).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, true)
FindChar{Char: "o", Forward: true, Inclusive: true, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 7 {
t.Errorf("col = %d, want 7", m.ActiveWindow().Cursor.Col)
}
})
// Cursor on last 'o' (col 7); no further 'o' — cursor must not move.
t.Run("no further match: cursor stays", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 7).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, true)
FindChar{Char: "o", Forward: true, Inclusive: true, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 7 {
t.Errorf("col = %d, want 7 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// Cursor at last col (10 = 'd'); searching forward finds nothing.
t.Run("cursor at end of line: no move", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 10).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, true)
FindChar{Char: "o", Forward: true, Inclusive: true, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 10 {
t.Errorf("col = %d, want 10 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// Count=2: skip first upcoming match, land on second.
// "aXbXcX" 0123456 — cursor at 0 (before first X at 1).
// `;` with count 2 should land on X at 5.
t.Run("count=2 skips first match lands on second", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"aXbXcX"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 1).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("X", true, true)
FindChar{Char: "X", Forward: true, Inclusive: true, Count: 2, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 5 {
t.Errorf("col = %d, want 5", m.ActiveWindow().Cursor.Col)
}
})
// Repeated=true must NOT overwrite lastFind.
t.Run("does not overwrite lastFind when Repeated", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 4).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, true)
FindChar{Char: "o", Forward: true, Inclusive: true, Count: 1, Repeated: true}.Execute(m)
lf := m.GetLastFind()
if lf.Char != "o" || !lf.Forward || !lf.Inclusive {
t.Errorf("lastFind modified: got {%q,%v,%v}", lf.Char, lf.Forward, lf.Inclusive)
}
})
}
// --------------------------------------------------
// ; after F (repeat backward-inclusive)
// --------------------------------------------------
func TestRepeatFind_Semicolon_After_F(t *testing.T) {
// `Fo` from col 10 → col 7. `;` should find prev 'o' at col 4.
t.Run("basic: lands on previous inclusive match", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 7).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", false, true)
FindChar{Char: "o", Forward: false, Inclusive: true, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("col = %d, want 4", m.ActiveWindow().Cursor.Col)
}
})
// Cursor on first 'o' (col 4); no earlier 'o' — must not move.
t.Run("no earlier match: cursor stays", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 4).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", false, true)
FindChar{Char: "o", Forward: false, Inclusive: true, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("col = %d, want 4 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// Cursor at col 0; searching backward finds nothing.
t.Run("cursor at start of line: no move", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 0).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", false, true)
FindChar{Char: "o", Forward: false, Inclusive: true, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 0 {
t.Errorf("col = %d, want 0 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// Count=2 backward: "XaXbX" 01234 — cursor at 4 (on last X).
// `;` F count 2 → skip X at 2, land on X at 0.
t.Run("count=2 backward skips one lands on second", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"XaXbX"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 4).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("X", false, true)
FindChar{Char: "X", Forward: false, Inclusive: true, Count: 2, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 0 {
t.Errorf("col = %d, want 0", m.ActiveWindow().Cursor.Col)
}
})
}
// --------------------------------------------------
// ; after t (repeat forward-exclusive)
// The key invariant: when Repeated && !Inclusive, start at col+2 not col+1,
// so that the char the cursor is already adjacent to is skipped.
// --------------------------------------------------
func TestRepeatFind_Semicolon_After_t(t *testing.T) {
// `to` col 0 → col 3 (one before 'o' at 4).
// `;` must skip 'o' at 4 and land at col 6 (one before 'o' at 7).
t.Run("basic: skips adjacent target, lands before next", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 3).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, false)
FindChar{Char: "o", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 6 {
t.Errorf("col = %d, want 6", m.ActiveWindow().Cursor.Col)
}
})
// After landing at col 6 (before 'o' at 7), another `;` looks from col 8:
// no further 'o' → cursor stays at 6.
t.Run("no further match after second repeat: cursor stays", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 6).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, false)
FindChar{Char: "o", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 6 {
t.Errorf("col = %d, want 6 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// Cursor at second-to-last col: col+2 would be out of bounds → no move.
// "Xo" — cursor at 0 (just did `to` landing at 0 = x-1 where x=1).
// `;` would start at col 2 which is past end → no move.
t.Run("col+2 out of bounds: no move", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"Xo"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 0).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, false)
FindChar{Char: "o", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 0 {
t.Errorf("col = %d, want 0 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// Three successive `;` after `t`: "aXbXcXd" 0123456
// `tX` col 0 → col 0 (adjacent: x=1, land at x-1=0).
// `;`1 col 0 → col 2 (skip X at 1, find X at 3, land at 2).
// `;`2 col 2 → col 4 (skip X at 3, find X at 5, land at 4).
t.Run("three chained repeats advance correctly", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"aXbXcXd"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 0).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("X", true, false)
// First repeat
FindChar{Char: "X", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 2 {
t.Errorf("after 1st repeat: col = %d, want 2", m.ActiveWindow().Cursor.Col)
}
// Second repeat
FindChar{Char: "X", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("after 2nd repeat: col = %d, want 4", m.ActiveWindow().Cursor.Col)
}
// Third repeat: no more X after col 6 → no move
FindChar{Char: "X", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("after 3rd repeat (no match): col = %d, want 4", m.ActiveWindow().Cursor.Col)
}
})
// count=2 on a repeated exclusive forward find.
// "aXbXcX" 0123456 — cursor at 0 (as if `tX` just landed at 0).
// `;` count=2 must skip X at 1, find X at 3 (count--), find X at 5 (count==1) → land at 4.
t.Run("count=2 repeated exclusive forward", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"aXbXcX"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 0).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("X", true, false)
FindChar{Char: "X", Forward: true, Inclusive: false, Count: 2, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("col = %d, want 4", m.ActiveWindow().Cursor.Col)
}
})
}
// --------------------------------------------------
// ; after T (repeat backward-exclusive)
// When Repeated && !Inclusive, start at col-2 to skip the adjacent char.
// --------------------------------------------------
func TestRepeatFind_Semicolon_After_T(t *testing.T) {
// `To` col 10 → col 8 (one after 'o' at 7).
// `;` must skip 'o' at 7, starting search at col 6, find 'o' at 4 → land at 5.
t.Run("basic: skips adjacent target, lands after previous", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 8).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", false, false)
FindChar{Char: "o", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 5 {
t.Errorf("col = %d, want 5", m.ActiveWindow().Cursor.Col)
}
})
// After landing at col 5, another `;` starts at col 3: no 'o' → stays at 5.
t.Run("no earlier match after second repeat: cursor stays", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 5).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", false, false)
FindChar{Char: "o", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 5 {
t.Errorf("col = %d, want 5 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// col-2 goes negative: col=1, backwardStart=-1 → loop never runs → no move.
t.Run("col-2 negative: no move", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"oX"}).Build()
// Cursor at col 1 (as if `TX` landed at x+1=1 where x=0).
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 1).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("X", false, false)
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 1 {
t.Errorf("col = %d, want 1 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// Three chained repeats: "dXcXbXa" 0123456
// After `TX` col 6 → col 6 (adjacent: x=5, land at x+1=6).
// `;`1 col 6 → col 4 (skip X at 5, find X at 3, land at 4).
// `;`2 col 4 → col 2 (skip X at 3, find X at 1, land at 2).
// `;`3 col 2 → no X before col 0 → stays at 2.
t.Run("three chained repeats advance correctly backward", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"dXcXbXa"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 6).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("X", false, false)
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("after 1st repeat: col = %d, want 4", m.ActiveWindow().Cursor.Col)
}
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 2 {
t.Errorf("after 2nd repeat: col = %d, want 2", m.ActiveWindow().Cursor.Col)
}
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 2 {
t.Errorf("after 3rd repeat (no match): col = %d, want 2", m.ActiveWindow().Cursor.Col)
}
})
// count=2 repeated exclusive backward.
// "XcXbXa" 01234 — cursor at 6 (as if `TX` just landed).
// "dXcXbXa" 0123456 cursor at 6.
// `;` count=2: skip X at 5, count-- (find X at 3), count-- → find X at 1 → land at 2.
t.Run("count=2 repeated exclusive backward", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"dXcXbXa"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 6).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("X", false, false)
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 2, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 2 {
t.Errorf("col = %d, want 2", m.ActiveWindow().Cursor.Col)
}
})
}
// --------------------------------------------------
// Counted repeats: 2; and 3; equivalence with pressing ; multiple times
//
// The invariant: N; must land on the same column as pressing ; N times.
// This section verifies that the Count path through FindChar.Execute
// gives identical results to chaining individual Repeated executions.
// --------------------------------------------------
func TestRepeatFind_CountedRepeats(t *testing.T) {
// Line: "aXbXcXdXe" 0123456789 (wait: let's count)
// a X b X c X d X e
// 0 1 2 3 4 5 6 7 8
// X appears at cols 1, 3, 5, 7.
// ---- 2; after f (forward inclusive) ----
// `fX` from col 0 → col 1.
// `;` from col 1 → col 3 (first ;)
// `2;` from col 1 should also land at col 5 (second ; equivalent), because:
// count=2 starts at col+1=2, skips X at 3 (count--), lands at X at 5.
// Wait — let me re-examine. "2;" means repeat the find 2 times from current pos.
// Pressing ; once from col 1: start at 2, find X at 3 → land 3. (not Repeated ≠ same as what we do)
// Actually after `fX` cursor is ON X at col 1. A single `;` (Repeated=true, inclusive)
// starts at col+1=2 → finds X at 3 → land at 3.
// A `2;` (Count=2, Repeated=true, inclusive) starts at col+1=2:
// X at 3 → count-- (→1); X at 5 → land at 5.
// Equivalently: press ; once (land 3), press ; again (start at 4, land at 5). ✓
t.Run("2; after f: lands same as two ; presses (inclusive forward)", func(t *testing.T) {
line := "aXbXcXdXe"
buf := core.NewBufferBuilder().WithLines([]string{line}).Build()
// Simulate with two sequential ; presses
win1 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 1).Build()
m1 := newMockModelWithWindow(&win1)
m1.SetLastFind("X", true, true)
FindChar{Char: "X", Forward: true, Inclusive: true, Count: 1, Repeated: true}.Execute(m1)
FindChar{Char: "X", Forward: true, Inclusive: true, Count: 1, Repeated: true}.Execute(m1)
twoSemicolons := m1.ActiveWindow().Cursor.Col
// Simulate with a single 2; (Count=2)
win2 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 1).Build()
m2 := newMockModelWithWindow(&win2)
m2.SetLastFind("X", true, true)
FindChar{Char: "X", Forward: true, Inclusive: true, Count: 2, Repeated: true}.Execute(m2)
counted := m2.ActiveWindow().Cursor.Col
if twoSemicolons != counted {
t.Errorf("2; landed at %d but two ; presses landed at %d", counted, twoSemicolons)
}
})
t.Run("3; after f: lands same as three ; presses (inclusive forward)", func(t *testing.T) {
line := "aXbXcXdXe"
buf := core.NewBufferBuilder().WithLines([]string{line}).Build()
win1 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 1).Build()
m1 := newMockModelWithWindow(&win1)
m1.SetLastFind("X", true, true)
FindChar{Char: "X", Forward: true, Inclusive: true, Count: 1, Repeated: true}.Execute(m1)
FindChar{Char: "X", Forward: true, Inclusive: true, Count: 1, Repeated: true}.Execute(m1)
FindChar{Char: "X", Forward: true, Inclusive: true, Count: 1, Repeated: true}.Execute(m1)
threeSemicolons := m1.ActiveWindow().Cursor.Col
win2 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 1).Build()
m2 := newMockModelWithWindow(&win2)
m2.SetLastFind("X", true, true)
FindChar{Char: "X", Forward: true, Inclusive: true, Count: 3, Repeated: true}.Execute(m2)
counted := m2.ActiveWindow().Cursor.Col
if threeSemicolons != counted {
t.Errorf("3; landed at %d but three ; presses landed at %d", counted, threeSemicolons)
}
})
// ---- 2; after F (backward inclusive) ----
// X at 1,3,5,7. Cursor at col 7 (after `FX`).
// ; from 7: start at 6, find X at 5 → land 5.
// ; from 5: start at 4, find X at 3 → land 3.
// 2; from 7: count=2, start at 6: X at 5 (count--), X at 3 → land 3. ✓
t.Run("2; after F: lands same as two ; presses (inclusive backward)", func(t *testing.T) {
line := "aXbXcXdXe"
buf := core.NewBufferBuilder().WithLines([]string{line}).Build()
win1 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 7).Build()
m1 := newMockModelWithWindow(&win1)
m1.SetLastFind("X", false, true)
FindChar{Char: "X", Forward: false, Inclusive: true, Count: 1, Repeated: true}.Execute(m1)
FindChar{Char: "X", Forward: false, Inclusive: true, Count: 1, Repeated: true}.Execute(m1)
twoSemicolons := m1.ActiveWindow().Cursor.Col
win2 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 7).Build()
m2 := newMockModelWithWindow(&win2)
m2.SetLastFind("X", false, true)
FindChar{Char: "X", Forward: false, Inclusive: true, Count: 2, Repeated: true}.Execute(m2)
counted := m2.ActiveWindow().Cursor.Col
if twoSemicolons != counted {
t.Errorf("2; after F landed at %d but two ; presses landed at %d", counted, twoSemicolons)
}
})
// ---- 2; after t (forward exclusive) ----
// Line "aXbXcXdXe", X at 1,3,5,7.
// `tX` from col 0 → land at col 0 (x=1, x-1=0, cursor stays put — adjacent).
// ; from 0: forwardStart=0+2=2, find X at 3 → land at 2.
// ; from 2: forwardStart=2+2=4, find X at 5 → land at 4.
// 2; from 0: count=2, forwardStart=2: X at 3 (count--), X at 5 → land at 4. ✓
t.Run("2; after t: lands same as two ; presses (exclusive forward)", func(t *testing.T) {
line := "aXbXcXdXe"
buf := core.NewBufferBuilder().WithLines([]string{line}).Build()
win1 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 0).Build()
m1 := newMockModelWithWindow(&win1)
m1.SetLastFind("X", true, false)
FindChar{Char: "X", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m1)
FindChar{Char: "X", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m1)
twoSemicolons := m1.ActiveWindow().Cursor.Col
win2 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 0).Build()
m2 := newMockModelWithWindow(&win2)
m2.SetLastFind("X", true, false)
FindChar{Char: "X", Forward: true, Inclusive: false, Count: 2, Repeated: true}.Execute(m2)
counted := m2.ActiveWindow().Cursor.Col
if twoSemicolons != counted {
t.Errorf("2; after t landed at %d but two ; presses landed at %d", counted, twoSemicolons)
}
})
t.Run("3; after t: lands same as three ; presses (exclusive forward)", func(t *testing.T) {
line := "aXbXcXdXe"
buf := core.NewBufferBuilder().WithLines([]string{line}).Build()
win1 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 0).Build()
m1 := newMockModelWithWindow(&win1)
m1.SetLastFind("X", true, false)
FindChar{Char: "X", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m1)
FindChar{Char: "X", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m1)
FindChar{Char: "X", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m1)
threeSemicolons := m1.ActiveWindow().Cursor.Col
win2 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 0).Build()
m2 := newMockModelWithWindow(&win2)
m2.SetLastFind("X", true, false)
FindChar{Char: "X", Forward: true, Inclusive: false, Count: 3, Repeated: true}.Execute(m2)
counted := m2.ActiveWindow().Cursor.Col
if threeSemicolons != counted {
t.Errorf("3; after t landed at %d but three ; presses landed at %d", counted, threeSemicolons)
}
})
// ---- 2; after T (backward exclusive) ----
// Line "aXbXcXdXe", X at 1,3,5,7. Cursor at col 8 (after `TX`, x=7, land x+1=8).
// ; from 8: backwardStart=8-2=6, find X at 5 → land at 6.
// ; from 6: backwardStart=6-2=4, find X at 3 → land at 4.
// 2; from 8: count=2, backwardStart=6: X at 5 (count--), X at 3 → land at 4. ✓
t.Run("2; after T: lands same as two ; presses (exclusive backward)", func(t *testing.T) {
line := "aXbXcXdXe"
buf := core.NewBufferBuilder().WithLines([]string{line}).Build()
win1 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 8).Build()
m1 := newMockModelWithWindow(&win1)
m1.SetLastFind("X", false, false)
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m1)
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m1)
twoSemicolons := m1.ActiveWindow().Cursor.Col
win2 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 8).Build()
m2 := newMockModelWithWindow(&win2)
m2.SetLastFind("X", false, false)
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 2, Repeated: true}.Execute(m2)
counted := m2.ActiveWindow().Cursor.Col
if twoSemicolons != counted {
t.Errorf("2; after T landed at %d but two ; presses landed at %d", counted, twoSemicolons)
}
})
t.Run("3; after T: lands same as three ; presses (exclusive backward)", func(t *testing.T) {
line := "aXbXcXdXe"
buf := core.NewBufferBuilder().WithLines([]string{line}).Build()
win1 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 8).Build()
m1 := newMockModelWithWindow(&win1)
m1.SetLastFind("X", false, false)
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m1)
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m1)
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m1)
threeSemicolons := m1.ActiveWindow().Cursor.Col
win2 := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 8).Build()
m2 := newMockModelWithWindow(&win2)
m2.SetLastFind("X", false, false)
FindChar{Char: "X", Forward: false, Inclusive: false, Count: 3, Repeated: true}.Execute(m2)
counted := m2.ActiveWindow().Cursor.Col
if threeSemicolons != counted {
t.Errorf("3; after T landed at %d but three ; presses landed at %d", counted, threeSemicolons)
}
})
}
// --------------------------------------------------
// , after f (reverse of forward-inclusive = backward-inclusive)
// Reverse: true causes Forward XOR true → backward search, still inclusive.
// --------------------------------------------------
func TestRepeatFind_Comma_After_f(t *testing.T) {
// `fo` col 0 → col 4. `,` reverses: backward inclusive from col 4.
// The search is NOT repeated/exclusive, so it starts at col-1=3.
// No 'o' before col 4 going left → cursor stays at 4.
//
// But wait: `fo` stored Forward=true. Resolve with Reverse=true → Forward=false.
// Repeated=true, Inclusive=true → backwardStart = col-1 (no extra skip for inclusive).
// Starting at col 3 going left through "hell" — no 'o' → no move.
t.Run("no previous match after fo: cursor stays", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 4).Build()
m := newMockModelWithWindow(&win)
// Simulate: lastFind was set by `fo`
m.SetLastFind("o", true, true)
// , = RepeatFind with Reverse=true resolved to backward-inclusive
FindChar{Char: "o", Forward: false, Inclusive: true, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("col = %d, want 4 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// `fo` from col 0 → col 4, `;` → col 7.
// `,` from col 7: backward inclusive → should find 'o' at col 4.
t.Run("after ;, comma returns to previous match", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 7).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, true)
// , reversed → backward inclusive from col 7, start at col 6: finds 'o' at 4
FindChar{Char: "o", Forward: false, Inclusive: true, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("col = %d, want 4", m.ActiveWindow().Cursor.Col)
}
})
}
// --------------------------------------------------
// , after F (reverse of backward-inclusive = forward-inclusive)
// --------------------------------------------------
func TestRepeatFind_Comma_After_F(t *testing.T) {
// `Fo` from col 10 → col 7. `,` reverses: forward inclusive from col 7.
// Start at col+1=8: finds nothing ('r','l','d' — no 'o') → no move.
t.Run("no further match forward: cursor stays", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 7).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", false, true)
// , reversed → forward inclusive
FindChar{Char: "o", Forward: true, Inclusive: true, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 7 {
t.Errorf("col = %d, want 7 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// `Fo` col 10 → col 7 → `;` → col 4. `,` from col 4: forward → finds 'o' at 7.
t.Run("after ;, comma returns forward to next match", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 4).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", false, true)
// , reversed → forward inclusive from col 4, start at col 5: finds 'o' at 7
FindChar{Char: "o", Forward: true, Inclusive: true, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 7 {
t.Errorf("col = %d, want 7", m.ActiveWindow().Cursor.Col)
}
})
}
// --------------------------------------------------
// , after t (reverse of forward-exclusive = backward-exclusive)
// Inclusive=false and Repeated=true → backwardStart = col-2.
// --------------------------------------------------
func TestRepeatFind_Comma_After_t(t *testing.T) {
// `to` col 0 → col 3. `,` reverses: backward exclusive from col 3.
// backwardStart = 3-2 = 1. Searching left from 1: no 'o' in "hel" → no move.
t.Run("no previous exclusive match: cursor stays", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 3).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, false)
// , reversed → backward exclusive, repeated
FindChar{Char: "o", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 3 {
t.Errorf("col = %d, want 3 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// `to` col 0 → col 3, `;` → col 6.
// `,` from col 6: backward exclusive → backwardStart=4, finds 'o' at 4 → land at 5.
t.Run("after ;, comma goes backward exclusive", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 6).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, false)
FindChar{Char: "o", Forward: false, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 5 {
t.Errorf("col = %d, want 5", m.ActiveWindow().Cursor.Col)
}
})
}
// --------------------------------------------------
// , after T (reverse of backward-exclusive = forward-exclusive)
// Inclusive=false and Repeated=true → forwardStart = col+2.
// --------------------------------------------------
func TestRepeatFind_Comma_After_T(t *testing.T) {
// `To` col 10 → col 8. `,` reverses: forward exclusive from col 8.
// forwardStart = 8+2 = 10: line[10]='d' ≠ 'o' → no more 'o' → no move.
t.Run("no further exclusive match forward: cursor stays", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 8).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", false, false)
// , reversed → forward exclusive, repeated
FindChar{Char: "o", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 8 {
t.Errorf("col = %d, want 8 (no move)", m.ActiveWindow().Cursor.Col)
}
})
// `To` col 10 → col 8. `;` → col 5. `,` from col 5: forward exclusive.
// forwardStart = 5+2 = 7: line[7]='o' → land at 6.
t.Run("after ;, comma goes forward exclusive", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 5).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", false, false)
FindChar{Char: "o", Forward: true, Inclusive: false, Count: 1, Repeated: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 6 {
t.Errorf("col = %d, want 6", m.ActiveWindow().Cursor.Col)
}
})
}
// --------------------------------------------------
// RepeatFind.Resolve — unit tests for the Resolve helper
// --------------------------------------------------
func TestRepeatFind_Resolve(t *testing.T) {
makeMock := func(char string, forward, inclusive bool) *mockModel {
buf := core.NewBufferBuilder().WithLines([]string{"x"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind(char, forward, inclusive)
return m
}
t.Run("; after f: Forward=true Reverse=false → Forward=true Inclusive=true", func(t *testing.T) {
m := makeMock("o", true, true)
fc := RepeatFind{Count: 1, Reverse: false}.Resolve(m).(FindChar)
if !fc.Forward || !fc.Inclusive || fc.Char != "o" || !fc.Repeated {
t.Errorf("unexpected resolved FindChar: %+v", fc)
}
})
t.Run(", after f: Forward=true Reverse=true → Forward=false Inclusive=true", func(t *testing.T) {
m := makeMock("o", true, true)
fc := RepeatFind{Count: 1, Reverse: true}.Resolve(m).(FindChar)
if fc.Forward || !fc.Inclusive || fc.Char != "o" || !fc.Repeated {
t.Errorf("unexpected resolved FindChar: %+v", fc)
}
})
t.Run("; after F: Forward=false Reverse=false → Forward=false Inclusive=true", func(t *testing.T) {
m := makeMock("o", false, true)
fc := RepeatFind{Count: 1, Reverse: false}.Resolve(m).(FindChar)
if fc.Forward || !fc.Inclusive || fc.Char != "o" || !fc.Repeated {
t.Errorf("unexpected resolved FindChar: %+v", fc)
}
})
t.Run(", after F: Forward=false Reverse=true → Forward=true Inclusive=true", func(t *testing.T) {
m := makeMock("o", false, true)
fc := RepeatFind{Count: 1, Reverse: true}.Resolve(m).(FindChar)
if !fc.Forward || !fc.Inclusive || fc.Char != "o" || !fc.Repeated {
t.Errorf("unexpected resolved FindChar: %+v", fc)
}
})
t.Run("; after t: Forward=true Reverse=false → Forward=true Inclusive=false", func(t *testing.T) {
m := makeMock("o", true, false)
fc := RepeatFind{Count: 1, Reverse: false}.Resolve(m).(FindChar)
if !fc.Forward || fc.Inclusive || fc.Char != "o" || !fc.Repeated {
t.Errorf("unexpected resolved FindChar: %+v", fc)
}
})
t.Run(", after t: Forward=true Reverse=true → Forward=false Inclusive=false", func(t *testing.T) {
m := makeMock("o", true, false)
fc := RepeatFind{Count: 1, Reverse: true}.Resolve(m).(FindChar)
if fc.Forward || fc.Inclusive || fc.Char != "o" || !fc.Repeated {
t.Errorf("unexpected resolved FindChar: %+v", fc)
}
})
t.Run("; after T: Forward=false Reverse=false → Forward=false Inclusive=false", func(t *testing.T) {
m := makeMock("o", false, false)
fc := RepeatFind{Count: 1, Reverse: false}.Resolve(m).(FindChar)
if fc.Forward || fc.Inclusive || fc.Char != "o" || !fc.Repeated {
t.Errorf("unexpected resolved FindChar: %+v", fc)
}
})
t.Run(", after T: Forward=false Reverse=true → Forward=true Inclusive=false", func(t *testing.T) {
m := makeMock("o", false, false)
fc := RepeatFind{Count: 1, Reverse: true}.Resolve(m).(FindChar)
if !fc.Forward || fc.Inclusive || fc.Char != "o" || !fc.Repeated {
t.Errorf("unexpected resolved FindChar: %+v", fc)
}
})
t.Run("Count is forwarded to resolved FindChar", func(t *testing.T) {
m := makeMock("x", true, true)
fc := RepeatFind{Count: 3, Reverse: false}.Resolve(m).(FindChar)
if fc.Count != 3 {
t.Errorf("Count = %d, want 3", fc.Count)
}
})
t.Run("Char is preserved from lastFind", func(t *testing.T) {
m := makeMock("z", true, true)
fc := RepeatFind{Count: 1, Reverse: false}.Resolve(m).(FindChar)
if fc.Char != "z" {
t.Errorf("Char = %q, want %q", fc.Char, "z")
}
})
}
// --------------------------------------------------
// RepeatFind — Type, WithCount, and Execute delegation
// --------------------------------------------------
func TestRepeatFind_Type(t *testing.T) {
t.Run("Type returns CharwiseExclusive (fallback)", func(t *testing.T) {
rf := RepeatFind{Count: 1, Reverse: false}
if rf.Type() != core.CharwiseExclusive {
t.Errorf("Type() = %v, want CharwiseExclusive", rf.Type())
}
})
}
func TestRepeatFind_WithCount(t *testing.T) {
t.Run("WithCount sets Count", func(t *testing.T) {
rf := RepeatFind{Count: 1, Reverse: false}
updated := rf.WithCount(5).(RepeatFind)
if updated.Count != 5 {
t.Errorf("Count = %d, want 5", updated.Count)
}
})
t.Run("WithCount preserves Reverse", func(t *testing.T) {
rf := RepeatFind{Count: 1, Reverse: true}
updated := rf.WithCount(2).(RepeatFind)
if !updated.Reverse {
t.Error("Reverse should be preserved as true")
}
})
}
func TestRepeatFind_Execute(t *testing.T) {
// Execute should delegate to Resolve(m).Execute(m) and actually move the cursor.
t.Run("Execute via ; after f moves cursor correctly", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 4).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, true)
// ; = RepeatFind{Reverse: false}
RepeatFind{Count: 1, Reverse: false}.Execute(m)
if m.ActiveWindow().Cursor.Col != 7 {
t.Errorf("col = %d, want 7", m.ActiveWindow().Cursor.Col)
}
})
t.Run("Execute via , after f reverses and moves cursor correctly", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 7).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, true)
// , = RepeatFind{Reverse: true}
RepeatFind{Count: 1, Reverse: true}.Execute(m)
if m.ActiveWindow().Cursor.Col != 4 {
t.Errorf("col = %d, want 4", m.ActiveWindow().Cursor.Col)
}
})
t.Run("Execute via ; after t skips adjacent and moves cursor", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 3).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", true, false)
RepeatFind{Count: 1, Reverse: false}.Execute(m)
if m.ActiveWindow().Cursor.Col != 6 {
t.Errorf("col = %d, want 6", m.ActiveWindow().Cursor.Col)
}
})
t.Run("Execute via ; after T skips adjacent backward and moves cursor", func(t *testing.T) {
buf := core.NewBufferBuilder().WithLines([]string{"hello world"}).Build()
win := core.NewWindowBuilder().WithBuffer(&buf).WithCursorPos(0, 8).Build()
m := newMockModelWithWindow(&win)
m.SetLastFind("o", false, false)
RepeatFind{Count: 1, Reverse: false}.Execute(m)
if m.ActiveWindow().Cursor.Col != 5 {
t.Errorf("col = %d, want 5", m.ActiveWindow().Cursor.Col)
}
})
}
// ==================================================
// WithCount Tests
// ==================================================

View File

@ -24,6 +24,8 @@ type Model interface {
// Insert recording (for count replay)
SetInsertRecording(count int, action Action)
SetLastFind(char string, forward, inclusive bool)
GetLastFind() *core.LastFindCommand
// ExitInsertMode handles replay, cursor step-back, and mode transition on esc
ExitInsertMode()
@ -90,3 +92,13 @@ type CharMotion interface {
Motion
WithChar(char string) Motion
}
// Resolvable is an optional interface for motions that need to consult the
// model to fully determine their behaviour (e.g. RepeatFind must look up the
// last find to know whether it is inclusive or exclusive). The FSM calls
// Resolve(m) first and uses the returned Motion in place of the original, so
// that the subsequent Type() call returns the correct value.
type Resolvable interface {
Motion
Resolve(m Model) Motion
}

View File

@ -27,6 +27,7 @@ type mockModel struct {
commandCursor int
commandError error
commandOutput string
lastFind core.LastFindCommand
}
func newMockModel() *mockModel {
@ -79,6 +80,10 @@ func (m *mockModel) InsertKeys() []string { return
func (m *mockModel) SetInsertKeys(keys []string) { m.insertKeys = keys }
func (m *mockModel) SetInsertRecording(count int, action action.Action) {}
func (m *mockModel) ExitInsertMode() {}
func (m *mockModel) SetLastFind(char string, forward, inclusive bool) {
m.lastFind = core.LastFindCommand{Char: char, Forward: forward, Inclusive: inclusive}
}
func (m *mockModel) GetLastFind() *core.LastFindCommand { return &m.lastFind }
// Command Mode State
func (m *mockModel) Command() string { return m.command }

7
internal/core/find.go Normal file
View File

@ -0,0 +1,7 @@
package core
type LastFindCommand struct {
Char string
Forward bool
Inclusive bool
}

View File

@ -34,6 +34,7 @@ type Model struct {
insertCount int
insertKeys []string
insertAction action.Action
lastFind core.LastFindCommand
// Command line state
command string
@ -106,6 +107,18 @@ func (m *Model) SetInsertRecording(count int, act action.Action) {
m.insertAction = act
}
func (m *Model) SetLastFind(char string, forward, inclusive bool) {
m.lastFind = core.LastFindCommand{
Char: char,
Forward: forward,
Inclusive: inclusive,
}
}
func (m *Model) GetLastFind() *core.LastFindCommand {
return &m.lastFind
}
func (m *Model) ExitInsertMode() {
win := m.ActiveWindow()
if m.insertCount > 1 {

View File

@ -155,6 +155,11 @@ func (h *Handler) handleInitial(m action.Model, kind string, binding any, key st
if r, ok := mot.(action.Repeatable); ok {
mot = r.WithCount(count).(action.Motion)
}
// Resolve late-binding motions (e.g. RepeatFind) before executing so
// that Type() on the resolved motion is accurate.
if res, ok := mot.(action.Resolvable); ok {
mot = res.Resolve(m)
}
cmd := mot.Execute(m)
h.Reset()
return cmd
@ -221,6 +226,11 @@ func (h *Handler) handleAfterOperator(m action.Model, kind string, binding any,
if r, ok := mot.(action.Repeatable); ok {
mot = r.WithCount(count).(action.Motion)
}
// Resolve late-binding motions (e.g. RepeatFind) before executing so
// that Type() on the resolved motion is accurate.
if res, ok := mot.(action.Resolvable); ok {
mot = res.Resolve(m)
}
// Get range and motion type
start := win.Cursor
mot.Execute(m)

View File

@ -37,6 +37,8 @@ func NewNormalKeymap() *Keymap {
"b": motion.MoveBackwardWord{Count: 1},
"ctrl+u": motion.ScrollUpHalfPage{},
"ctrl+d": motion.ScrollDownHalfPage{},
";": action.RepeatFind{Count: 1, Reverse: false},
".": action.RepeatFind{Count: 1, Reverse: true},
},
operators: map[string]action.Operator{
"d": operator.DeleteOperator{},
@ -65,10 +67,10 @@ func NewNormalKeymap() *Keymap {
"P": action.PasteBefore{Count: 1},
},
charMotions: map[string]action.Motion{
"f": action.FindChar{Forward: true, Inclusive: true},
"F": action.FindChar{Forward: false, Inclusive: true},
"t": action.FindChar{Forward: true, Inclusive: false},
"T": action.FindChar{Forward: false, Inclusive: false},
"f": action.FindChar{Forward: true, Inclusive: true, Repeated: false},
"F": action.FindChar{Forward: false, Inclusive: true, Repeated: false},
"t": action.FindChar{Forward: true, Inclusive: false, Repeated: false},
"T": action.FindChar{Forward: false, Inclusive: false, Repeated: false},
},
}
}