Most surely, I'm not understanding this the right way.
I'm cleaning up some epubs and have noticed that some of them have anchor tags with a class and an id but without any hyperlink. Some epubs have several hundred in between the text.
So I'm using this regex to find anchor links with nothing inside them
<a class="(.*?)" id="(.*?)"></a>
The problem is that it also finds these tags with spans and even text inside.
I would like to be able to restrict the findings to only this situation.