Question

我有一个正则表达式来搜索字符串。

new RegExp("\\b"+searchText+"\\b", "i")

我的字符串：

"You are likely to find [[children]] in [[a school]]"
"[[school]] is for [[learning]]"

我如何只搜索括号中的单词？

正则表达式应包含searchText作为函数参数。

Answer 1

此RegEx将为您提供所需内容的基础知识

\[\[[^\]]*\]\]

\[\[与两个起始括号匹配。方括号是RegEx中的特殊字符，因此必须使用\
[^\]]*是一个否定的集合，它匹配一个或多个零个或多个字符，除了右括号。这与方括号之间的内容匹配。
\]\]与两个右括号匹配。

这是您可以执行此操作的一个非常基本的示例：

let string = "You are likely to find [[children]] in [[a school]]<br>[[school]] is for [[learning]]";

string = string.replace(/\[\[[^\]]*\]\]/g, x => `<mark>${x}</mark>`);

document.body.innerHTML = string;

Answer 2

您可以使用此正则表达式：

var str = `-- You are likely to find [[children]] in [[a school]]
-- [[school]] is for [[learning]]`;
var regex = /(?<=(\[\[))([\w\s]*)(?=(\]\]))/gm;
var match = str.match(regex);
console.log(match);

Answer 3

const re = /(?<=\[\[)[^\]]+(?=]])/gm
const string = `-- You are likely to find [[children]] in [[a school]]
-- [[school]] is for [[learning]]`

console.log(string.match(re))

const replacement = {
  children: 'adults',
  'a school': 'a home',
  school: 'home',
  learning: 'rest',
}

console.log(string.split(/(?<=\[\[)[^\]]+(?=]])/).map((part, index) => part + (replacement[string.match(re)[index]] || '')).join(''))

字符串中的双括号模式搜索

3 个答案: