RegEx match open tags except XHTML self-contained tags
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I need to match all of these opening tags: <p> <a href="foo"> But not self-closing tags: <br /> <hr class="foo" /> I came up with this and wanted to make

It can’t be done, as an opening tag in html can contain anything in its attributes, even JavaScript (e.g. onclick handler).

??? Non sequitur

You can’t parse every html opening tag with regex, because a html opening tag doesn’t have a set structure. How would you match, with regex, this opening tag? <mytag myattribute="<value of \"myattribute\">" >

Is this valid HTML? My understanding is that that attribute value needs to be escaped, i.e &lt;value of \&quot;myattribute\&quot;&gt;.

The quote must not be escaped when you start with a single quote. The rest doesn’t. This is valid and tested: <img alt='my "<img>"'>

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