mirror of https://github.com/chzyer/readline.git
Add barebones support for yank/paste (#120)
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045fff973b
commit
9f56defe66
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@ -226,6 +226,8 @@ func (o *Operation) ioloop() {
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o.Refresh()
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case MetaBackspace, CharCtrlW:
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o.buf.BackEscapeWord()
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case CharCtrlY:
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o.buf.Yank()
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case CharEnter, CharCtrlJ:
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if o.IsSearchMode() {
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o.ExitSearchMode(false)
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26
runebuf.go
26
runebuf.go
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@ -29,9 +29,15 @@ type RuneBuffer struct {
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offset string
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lastKill []rune
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sync.Mutex
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}
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func (r* RuneBuffer) pushKill(text []rune) {
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r.lastKill = append([]rune{}, text...)
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}
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func (r *RuneBuffer) OnWidthChange(newWidth int) {
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r.Lock()
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r.width = newWidth
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@ -187,6 +193,7 @@ func (r *RuneBuffer) Replace(ch rune) {
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func (r *RuneBuffer) Erase() {
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r.Refresh(func() {
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r.idx = 0
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r.pushKill(r.buf[:])
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r.buf = r.buf[:0]
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})
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}
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@ -196,6 +203,7 @@ func (r *RuneBuffer) Delete() (success bool) {
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if r.idx == len(r.buf) {
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return
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}
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r.pushKill(r.buf[r.idx : r.idx+1])
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r.buf = append(r.buf[:r.idx], r.buf[r.idx+1:]...)
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success = true
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})
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@ -212,6 +220,7 @@ func (r *RuneBuffer) DeleteWord() {
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}
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for i := init + 1; i < len(r.buf); i++ {
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if !IsWordBreak(r.buf[i]) && IsWordBreak(r.buf[i-1]) {
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r.pushKill(r.buf[r.idx:i-1])
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r.Refresh(func() {
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r.buf = append(r.buf[:r.idx], r.buf[i-1:]...)
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})
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@ -247,6 +256,7 @@ func (r *RuneBuffer) KillFront() {
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}
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length := len(r.buf) - r.idx
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r.pushKill(r.buf[:r.idx])
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copy(r.buf[:length], r.buf[r.idx:])
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r.idx = 0
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r.buf = r.buf[:length]
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@ -255,6 +265,7 @@ func (r *RuneBuffer) KillFront() {
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func (r *RuneBuffer) Kill() {
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r.Refresh(func() {
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r.pushKill(r.buf[r.idx:])
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r.buf = r.buf[:r.idx]
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})
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}
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@ -321,6 +332,7 @@ func (r *RuneBuffer) BackEscapeWord() {
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}
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for i := r.idx - 1; i > 0; i-- {
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if !IsWordBreak(r.buf[i]) && IsWordBreak(r.buf[i-1]) {
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r.pushKill(r.buf[i:r.idx])
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r.buf = append(r.buf[:i], r.buf[r.idx:]...)
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r.idx = i
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return
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@ -332,6 +344,20 @@ func (r *RuneBuffer) BackEscapeWord() {
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})
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}
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func (r *RuneBuffer) Yank() {
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if len(r.lastKill) == 0 {
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return
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}
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r.Refresh(func() {
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buf := make([]rune, 0, len(r.buf) + len(r.lastKill))
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buf = append(buf, r.buf[:r.idx]...)
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buf = append(buf, r.lastKill...)
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buf = append(buf, r.buf[r.idx:]...)
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r.buf = buf
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r.idx += len(r.lastKill)
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})
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}
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func (r *RuneBuffer) Backspace() {
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r.Refresh(func() {
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if r.idx == 0 {
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1
utils.go
1
utils.go
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@ -38,6 +38,7 @@ const (
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CharTranspose = 20
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CharCtrlU = 21
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CharCtrlW = 23
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CharCtrlY = 25
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CharCtrlZ = 26
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CharEsc = 27
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CharEscapeEx = 91
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