正则表达式匹配精确路径与两个 /

Question

我试图用正则表达式匹配下面的路径。# test-site could be anything like "shoe-site", "best-clock", etc./content/test-site当前的正则表达式规则(\/content\/{1}\S+)就足够了。问题是它匹配整个路径，例如/content/test-site/en_US/abc.html.我只需要匹配/content/test-site.要匹配的路径示例：https://localhost:4502/content/test-site/en_US/book/city/sample-rooms/airport-inn/propertyCode.00000.html到目前为止我尝试过的正则表达式；(\/content\/[a-z-]+)\/[a-z]{2}_[A-Z]{2}\/book(ing-path)?\/(sample-|sample-details)(.*).[0-9]{5}.*/content/test-site is optional- it might not present sometimes in url.我做错了什么，我该如何解决？

Answer 1

您可以使用否定字符类

^(?:[^\/]*\/){2}[^\/]*

const path = '/content/test-site/en_US/abc.html';

const desired = path.match(/^(?:[^\/]*\/){2}[^\/]*/)

console.log(desired[0])

Answer 2

这是另一种方法：

(?:\/[a-zA-Z0-9-]+){2}

解释：

(?:                 # Non-capturing group

\/[a-zA-Z0-9-]+     # Match starting with / and followed with characters/digits/-

)                   # Close grouping

{2}                 # Match two times, i.e. only match with two /

Answer 3

正则表达式匹配任何字符期望/：

content\/[^\/]+

这是字符类。以脱字符开头的字符类将匹配该类中没有的任何内容。更多关于这一点。

因此，使用 javascript：

const url = '/content/test-site/en_US/abc.html';

const path = url.match(/content\/[^\/]+/)

console.log(path[0])