解析字符串以查找下一个定界符-处理 [英] Parsing a string to find next delimiter - Processing

问题描述

所以这里的想法是，我将一个.csv放入一个字符串中，并且每个值都需要存储到一个变量中.我不确定如何正确解析字符串来做到这一点.

So the idea here is that I'm taking a .csv into a string and each value needs to be stored into a variable. I am unsure how to properly parse a string to do this.

我的想法是一个看起来像这样的函数

My idea is a function that looks like

final char delim = ',';

int nextItem(String data, int startFrom) {
    if (data.charAt(startFrom) != delim) {
        return data.charAt(startFrom)
    } else {
        return nextItem(data, startFrom + 1);
    }
}

所以如果我通过了类似的事情

so if I passed it something like

    nextItem("45,621,9", 0);

它将返回45

如果我通过了

    nextItem("45,621,9", 3);

它将返回621

我不确定是否可以正确地进行递归设置，但是我想我也可以使用For循环，只有真正的规定是我不能使用Substring方法.

I'm not sure if I have that setup properly to be recursive, but I could also use a For loop I suppose, only real stipulation is I can't use the Substring method.

推荐答案

处理过程附带一个split()函数，该函数可以完全满足您的描述.

Processing comes with a split() function that does exactly what you're describing.

来自参考:

String men = "Chernenko,Andropov,Brezhnev";
String[] list = split(men, ',');
// list[0] is now "Chernenko", list[1] is "Andropov"...

在后台使用String#split()函数，例如H. Sodi的答案，但是您应该只使用此函数，而不要定义自己的函数.

Behind the scenes it's using the String#split() function like H. Sodi's answer, but you should just use this function instead of defining your own.

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