JavaScript RegEx 集团

Question

这个问题已经有答案了:

How to capture an arbitrary number of groups in JavaScript Regexp? (5 个回答)

已关闭 9 年前。

我正在尝试解析以下字符串格式:

<id>:<name>[,<name>]*

举个例子，考虑 123:test,south-west,best,rest_well .

我编写了以下正则表达式:

/(\d+):([a-zA-Z0-9_\-]+)(?:,([a-zA-Z0-9_\-]+))*/

我的假设是(?:,([a-zA-Z0-9_\-]+))将捕获可选的附加名称(south-west、best 和rest_well)。但是，它仅捕获姓氏“rest_well”。

打印出的匹配:

'123:test,south-west,best,rest_well'.match(/(\d+):([a-zA-Z0-9_\-]+)(?:,([a-zA-Z0-9_\-]+))*/);
> ["123:test,south-west,best,rest_well", "123", "test", "rest_well"]

我所期待的:

> ["123:test,south-west,best,rest_well", "123", "test", "south-west", "best", "rest_well"]

我相信其他语言实际上会累积匹配的组，但不知何故这失败了。也许我遗漏了一个小细节。如有任何帮助，我们将不胜感激!

Answer 1

听起来您只想用 : 或 , 分割字符串。这行得通吗？

var str = "123:test,south-west,best,rest_well";
var res = str.split(/:|,/);

输出

["123", "test", "south-west", "best", "rest_well"]