将字符串拆分为数组而不删除分隔符？ [英] Split string into array without deleting delimiter?

问题描述

我有一个字符串，如

 "asdf a  b c2 "

我想将它拆分成这样的数组：

And I want to split it into an array like this:

["asdf", " ", "a", " ", " ", "b", " ", "c2", " "]

使用 string.split（）删除空格，结果如下：

Using string.split(" ") removes the spaces, resulting in this:

["asdf", "a", "", "b", "c2"]

我想插入额外的分隔符，例如

I thought of inserting extra delimiters, e.g.

string.replace(/ /g, "| |").replace(/||/g, "|").split("|");

但这会产生意外结果。

推荐答案

而不是拆分，可能更容易将其视为提取包含分隔符或不分隔符的连续字符的字符串：

Instead of splitting, it might be easier to think of this as extracting strings comprising either the delimiter or consecutive characters that are not the delimiter:

'asdf a  b c2 '.match(/\S+|\s/g)
// result: ["asdf", " ", "a", " ", " ", "b", " ", "c2", " "]
'asdf a  b. . c2% * '.match(/\S+|\s/g)
// result: ["asdf", " ", "a", " ", " ", "b.", " ", ".", " ", "c2%", " ", "*", " "]

莎士比亚对比赛的更多定义是：

A more Shakespearean definition of the matches would be:

'asdf a  b c2 '.match(/ |[^ ]+/g)

到 或（不是 ）+。

To or (not to )+.

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