HTML Filter: start tags without corresponding end tags handling in well-formed mode
The differences between HTML and XHTML are reflected by non-well-formed and well-formed configurations. The main thing is the presence of start tags that do not have the corresponding end tags in the former case (HTML).
Examples of such tags are <img>, <param> and <area>. The end elements are forbidden according to HTML 4.0...
This is how it could look in markup for <img>:
<html>
<body>
<p>
<a href="foo.html"><img src="bar.png"></a>
</p><
/body>
</html>
I think if we consolidate the handling of such start tags, we will get closer to having only one filter configuration...