特定字符的元素之间的正则表达式

Question

Say I have the following String:

&<div>test & test & test</div><&>

How would I go about finding all the & in between the element tags, ie ></ ? (doesn't have to be specific to divs)

So far I've gotten >.*(&).*< , but that only finds the last & in between the ></ .

For context, I eventually need to use this regex to translate certain special characters to use the appropriate escape character, but only in between the elements.

Answer 1

To match only the & , use a look ahead:

&(?=[^<>]*</)

It's not bullet proof, but will hopefully work for your input.

Answer 2

The problem is that the .* expression is “greedy”. And I can't see the slash after the final < symbol in your regexp.

The precise answer depends on the RE dialect you're using (you didn't say anything about it), but in common case, this must work:

>([^<&>]*(&)[^<&>]*)*</