xml中的匹配多行匹配模式

Question

如何匹配以下模式：

<aaa class = "dog">
   <bbb id = "one"/>
</aaa>
<aaa class = "dog">
   <bbb id = "two"/>
</aaa>
<aaa class = "dog">
   <bbb id = "three"/>
</aaa>

我想要：

<aaa class = "dog">
   <bbb id = "three"/>
</aaa>

我用：

^(.)*dog(.|\r|\n|\t)*(three)

但它匹配：

<aaa class = "dog">
   <bbb id = "one"/>
</aaa>
<aaa class = "dog">
   <bbb id = "two"/>
</aaa>
<aaa class = "dog">
   <bbb id = "three

我应该如何编辑正则表达式以匹配我想要的内容？

Answer 1

如果要匹配提到的三行，可以使用以下正则表达式：

<aaa class = "dog">[\r\n\t\s]*<bbb id = "three"/>[\r\n\t\s]*</aaa>