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delete line on Ctrl-Y key in editor #168

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delete line on Ctrl-Y key in editor #168

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16 changes: 16 additions & 0 deletions edit.go
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,8 @@ func simpleEditor(v *View, key Key, ch rune, mod Modifier) {
v.EditDelete(true)
case key == KeyDelete:
v.EditDelete(false)
case key == KeyCtrlY:
v.EditDeleteLine()
case key == KeyInsert:
v.Overwrite = !v.Overwrite
case key == KeyEnter:
Expand All @@ -58,6 +60,20 @@ func (v *View) EditWrite(ch rune) {
v.MoveCursor(1, 0, true)
}

// EditDelete deletes a line at the cursor position.
func (v *View) EditDeleteLine() error {
v.tainted = true
_, y, err := v.realPosition(0, v.oy+v.cy)
if err != nil {
return err
}
if y < 0 || y >= len(v.lines) {
return errors.New("invalid point")
}
v.lines = append(v.lines[:y], v.lines[y+1:]...)
return nil
}

// EditDelete deletes a rune at the cursor position. back determines the
// direction.
func (v *View) EditDelete(back bool) {
Expand Down