我试图在Go中编写一个扫描程序，以扫描连续行，并在返回之前清理掉行，以便您可以返回逻辑行。因此，给定以下SplitLine函数（Play）：

func ScanLogicalLines(data []byte, atEOF bool) (int, []byte, error) {
    if atEOF && len(data) == 0 {
        return 0, nil, nil
    }

    i := bytes.IndexByte(data, '\n')
    for i > 0 && data[i-1] == '\\' {
        fmt.Printf("i: %d, data[i] = %q\n", i, data[i])
        i = i + bytes.IndexByte(data[i+1:], '\n')
    }

    var match []byte = nil
    advance := 0
    switch {
    case i >= 0:
        advance, match = i + 1, data[0:i]
    case atEOF: 
        advance, match = len(data), data
    }
    token := bytes.Replace(match, []byte("\\\n"), []byte(""), -1)
    return advance, token, nil
}

func main() {
    simple := `
Just a test.

See what is returned. \
when you have empty lines.

Followed by a newline.
`

    scanner := bufio.NewScanner(strings.NewReader(simple))
    scanner.Split(ScanLogicalLines)
    for scanner.Scan() {
        fmt.Printf("line: %q\n", scanner.Text())
    }
}

我希望代码返回类似以下内容：

line: "Just a test."
line: ""
line: "See what is returned, when you have empty lines."
line: ""
line: "Followed by a newline."

但是，它在返回第一行后停止。第二个电话返回1, "", nil。

任何人有任何想法，还是一个错误？