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fix: a problem that cannot read mtr output from pipe
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| package common | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "regexp" | ||
| ) | ||
|
|
||
| var newlineReg = regexp.MustCompile(`\r?\n|\r\n?`) | ||
|
|
||
| func ScanLines(data []byte, atEOF bool) (advance int, token []byte, err error) { | ||
| if atEOF && len(data) == 0 { | ||
| return 0, nil, nil | ||
| } | ||
| if loc := newlineReg.FindIndex(data); len(loc) > 0 { | ||
| delimiterLen := 1 | ||
| i := loc[0] | ||
| if i+1 < len(data) && data[i+1] == '\n' { | ||
| delimiterLen = 2 | ||
| } | ||
| return i + delimiterLen, data[:i], nil | ||
| } | ||
| // If we're at EOF, we have a final, non-terminated line. Return it. | ||
| if atEOF { | ||
| return len(data), bytes.TrimSuffix(data, []byte{'\r'}), nil | ||
| } | ||
| // Request more data. | ||
| return 0, nil, nil | ||
| } |