根据空格拆分子字符串golang数量有限

Question

I need to combine strings.SplitN and strings.SplitFunc. the input string might have any kind of whitespace and I just need the first two splitted substrings and remaining string should be parsed in another run. The SplitN function splits the input up to the N parameter but just consider space not whitespace. You can define your special splitter in SplitFunc, in my case something like this:

f := func(r rune) bool {
    return unicode.IsSpace(r)
}

but I can not define the number of substring in SplitFunc.

the function strings.Fields is also not useful since there is no limit in this function.

Answer 1

regexp Split appears to do what you require

s := regexp.MustCompile("[[:space:]]+")
r:=s.Split("the     final conflict.  Of Cheese", 3)
    fmt.Println("first two ",r[:2])
    fmt.Println("remaining ",r[2:])
}

https://play.golang.org/p/-uoIljx0fKN