如何捕获两个标签之间的多行正则表达式? [英] How to capture multiline regex between two tags?

问题描述

选择 2 个评论标签之间的所有文本的最佳方法是什么?例如

What's the best way to select all text between 2 comment tags? E.g.

<!-- Text 1
     Text 2
     Text 3
-->

<\!--.* 将捕获

<\!--.* will capture <!-- Text 1 but not Text 2, Text 3, or -->

编辑根据 Basti M 的回答， <\!--((?:.*\n)*)--> 将选择 first 之间的所有内容.IE.下面的第 1 到 11 行.

Edit As per Basti M's answer, <\!--((?:.*\n)*)--> will select everything between the first <!-- and last -->. I.e. lines 1 to 11 below.

我将如何修改它以仅选择单独标签中的行?即第 1 到 4 行:

How would I modify this to select just lines within separate tags? i.e. lines 1 to 4:

1 <!-- Text 1 //First
2      Text 2
3      Text 3
4 -->
5
6 More text
7 
8 <!-- Text 4
9      Text 5
10     Text 6
11 -->         //Last

推荐答案

根据您的底层引擎使用 s-modifier(并在你的表达结束了.
这将使 . 也匹配换行符.

Depending on your underlying engine use the s-modifier (and add --> at the end of your expression.
This will make the . match newline-characters aswell.

如果 s-flag 对您不可用，您可以使用

If the s-flag is not available to you, you may use

<!--((?:.*\r?\n?)*)-->

说明:

<!--         #start of comment
  (           #start of capturing group
    (?:       #start of non-capturing group
      .*\r?\n? #match every character including a line-break
    )*        #end of non-capturing group, repeated between zero and unlimited times
  )           #end of capturing group
-->           #end of comment

要匹配多个评论块，您可以使用

To match multiple comment blocks you can use

/(?:<!--((?:.*?\r?\n?)*)-->)+/g

演示@Regex101

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