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fix runebuf

This commit is contained in:
Cheney 2015-09-22 17:36:52 +08:00
parent c9aba7b858
commit f8c012aa53
1 changed files with 11 additions and 23 deletions
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32
runebuf.go
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@ -178,37 +178,25 @@ func (r *RuneBuffer) RefreshSet(originLength, originIdx int) {
func (r *RuneBuffer) Output(originLength, originIdx int, prompt bool) []byte {
buf := bytes.NewBuffer(nil)
buf.Write(bytes.Repeat([]byte{'\b'}, originIdx))
if prompt {
if r.hasPrompt {
buf.Write(bytes.Repeat([]byte{'\b'}, len(r.prompt)))
}
buf.Write(r.CleanOutput())
buf.Write(r.prompt)
}
r.hasPrompt = prompt
buf.Write([]byte(string(r.buf)))
if originLength > len(r.buf) {
buf.Write(bytes.Repeat([]byte{' '}, originLength-len(r.buf)))
buf.Write(bytes.Repeat([]byte{'\b'}, originLength-len(r.buf)))
}
buf.Write(bytes.Repeat([]byte{'\b'}, len(r.buf)-r.idx))
return buf.Bytes()
}
func (r *RuneBuffer) Clean() {
moveToFirst := r.idx
if r.hasPrompt {
moveToFirst += len(r.prompt)
func (r *RuneBuffer) CleanOutput() []byte {
buf := bytes.NewBuffer(nil)
buf.Write([]byte("\033[J"))
for i := 0; i <= 100; i++ {
buf.WriteString("\033[2K\r\b")
}
r.w.Write(bytes.Repeat([]byte{'\b'}, moveToFirst))
length := len(r.buf)
if r.hasPrompt {
length += len(r.prompt)
}
r.w.Write(bytes.Repeat([]byte{' '}, length))
return buf.Bytes()
}
r.w.Write(bytes.Repeat([]byte{'\b'}, length))
r.hasPrompt = false
func (r *RuneBuffer) Clean() {
r.w.Write(r.CleanOutput())
}
func (r *RuneBuffer) ResetScreen() {