正则周二挑战赛 - 第一周

本周正则周二挑战是第一个挑战，任务是处理重复的单词。 这是个非常简单的挑战，今后的挑战也许会比这个难些。

你必须匹配替换重复的单词将它用 <strong> 元素包裹。 例如：this is is a test 应该被替换为 this is <strong>is</strong> a test。

在你输入正则之后，每个测试用例都会标注为是否通过，红色是未通过，绿色是通过，因为是基于 web 的，所以只能使用基于 JavaScript 传统型 NFA (Traditional NFA)正则引擎。它类似于PCRE，但有一些不同之处。

测试用例 (0/11) 永久链接 (分享连接) 隐藏通过的例子

This is a test

This is a test

This is is a test

This is <strong>is</strong> a test

This test test is is

This test <strong>test</strong> is <strong>is</strong>

This test is a test

This test is a test

This this test is a test

This <strong>this</strong> test is a test

cat dog dog cat dog

cat dog <strong>dog</strong> cat dog

This test is a test tester

This test is a test tester

hello world hello world

hello world hello world

This nottest test is something

This nottest test is something

This is IS a test

This is <strong>IS</strong> a test

<Mack> I'll I'll be be back back in in a a bit bit.

<Mack> I'll <strong>I'll</strong> be <strong>be</strong> back <strong>back</strong> in <strong>in</strong> a <strong>a</strong> bit <strong>bit</strong>.