Question

我有一个字符串，我想将其拆分为数组中包含的项目，如下例所示：

var text = "I like grumpy cats. Do you?"

// to result in:

var wordArray = ["I", " ", "like", " ", "grumpy", " ", "cats", ".", "  ", "Do", " ", "you", "?" ]

我尝试过以下表达式（类似的变种没有成功

var wordArray = text.split(/(\S+|\W)/)
//this disregards spaces and doesn't separate punctuation from words

在Ruby中有一个正则表达式运算符（\ b），它在任何单词边界处分割，保留空格和标点符号，但我找不到类似的Java脚本。非常感谢您的帮助。

Answer 1

使用String#match方法和正则表达式/\w+|\s+|[^\s\w]+/g。

\w+ - 任何单词匹配
\s+ - 适用于空白
[^\s\w]+ - 用于匹配除空格和单词字符以外的任何内容的组合。

＆＃13;

var text = "I like grumpy cats. Do you?";

console.log(
  text.match(/\w+|\s+|[^\s\w]+/g)
)

＆＃13;

Regex explanation here

仅供参考：如果您只想匹配单个特殊字符，则可以使用\W或.代替[^\s\w]+。

Answer 2

单词边界\b应该可以正常工作。

示例

"I like grumpy cats. Do you?".split(/\b/) // ["I", " ", "like", " ", "grumpy", " ", "cats", ". ", "Do", " ", "you", "?"]

修改

要处理.的情况，我们可以将其拆分为[.\s]

示例

"I like grumpy cats. Do you?".split(/(?=[.\s]|\b)/) // ["I", " ", "like", " ", "grumpy", " ", "cats", ".", " ", "Do", " ", "you", "?"]

(?=[.\s]正向前看，在.或\s
之前拆分

Answer 3

var text = "I like grumpy cats. Do you?"
var arr = text.split(/\s|\b/);
alert(arr);

将字符串拆分为JavaScript中的单词，标点符号和空格数组

3 个答案: