mirror of https://github.com/Hilbis/Hilbish
43 lines
748 B
Go
43 lines
748 B
Go
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package readline
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type undoItem struct {
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line string
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pos int
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}
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func (rl *Instance) undoAppendHistory() {
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defer func() { rl.viUndoSkipAppend = false }()
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if rl.viUndoSkipAppend {
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return
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}
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rl.viUndoHistory = append(rl.viUndoHistory, undoItem{
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line: string(rl.line),
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pos: rl.pos,
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})
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}
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func (rl *Instance) undoLast() {
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var undo undoItem
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for {
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if len(rl.viUndoHistory) == 0 {
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return
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}
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undo = rl.viUndoHistory[len(rl.viUndoHistory)-1]
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rl.viUndoHistory = rl.viUndoHistory[:len(rl.viUndoHistory)-1]
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if string(undo.line) != string(rl.line) {
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break
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}
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}
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rl.line = []rune(undo.line)
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rl.pos = undo.pos
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if rl.modeViMode != VimInsert && len(rl.line) > 0 && rl.pos == len(rl.line) {
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rl.pos--
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}
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rl.updateHelpers()
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}
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