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regex:字符串匹配,包括标点符号

match replace string regex javascript

1

MysteryPancake · 技术社区 · 7 年前

From another question ,我用这个表达式来匹配句子中的单词:

var sentence = "Exclamation! Question? Full stop. Ellipsis...";
console.log(sentence.toLowerCase().match(/\w+(?:'\w+)*/g));

它工作得很好。然而,现在我正在寻找一种方法来分别匹配感叹号、问号和句号。结果应该如下所示:

[
  "exclamation",
  "!",
  "question",
  "?",
  "full",
  "stop",
  ".",
  "ellipsis",
  "."
]

只匹配省略号中的一个点,而不是分别匹配三个点。

任何帮助都将不胜感激!

2 回复 | 直到 7 年前

1

2

mickmackusa Tom Green 7 年前

使用单词边界只从省略号返回一个点怎么样?

var sentence = "Exclamation! Question? Full stop. Ellipsis...";
console.log(sentence.toLowerCase().match(/[a-z]+(?:'[a-z]+)*|\b[!?.]/g));

或者消极的展望:

var sentence = "Exclamation! Question? Full stop. Ellipsis...";
console.log(sentence.toLowerCase().match(/[a-z]+(?:'[a-z]+)*|[!?.](?![!?.])/g));

在您的评论场景扩展之后,负面的回顾似乎是有效的。

var sentence = "You're \"Pregnant\"??? How'd This Happen?! The vasectomy YOUR 1 job. Let's \"talk this out\"...";
console.log(sentence.toLowerCase().match(/[a-z\d]+(?:'[a-z\d]+)*|(?<![!?.])[!?.]/g));

2

4

Pawan Singh 7 年前

尝试下面的代码

var sentence = "Exclamation! Question? Full stop. Ellipsis...";
console.log(sentence.toLowerCase().match(/[?!.]|\w+/g));

如果你只想要一个点,你可以用---

var sentence = "Exclamation!!! Question??? Full stop. Ellipsis...";

var arr = sentence.toLowerCase().match(/[?]+|[!]+|[.]+|\w+/g);
arr = arr.map(function(item){
	return item.replace(/(.)\1+/g, "$1");
})

console.log(arr);