如何在正则表达式中将文本元素用作两个不同捕获组的一部分？

Question

I have a string I'm trying to parse with regex that seems to need one part of the string as a part of two different capture groups. Consider the following example:

<!-- 123 text -->text bit 1<!-- /123 text -->
<span class="someclass">something</span>
<!-- 456 text -->222 text<!-- /456 text -->

In this example code, I want three capture groups:

• everything up to (but not including) the 222 in the last line
• the 222 (or, the 222 plus its trailing space)
• the rest

The easiest unique piece of this is the --> followed by some number, so I thought of starting like this:

(.*-->\d+)

This would correctly find the right area, but I need that first capture group to be without the number and the second to have it. What am I missing?

Answer 1

检查是否适合您

(.*-->)(\d+)(.*)