I have a node with the body "

Lorem ipsum dolor sit amet

consectetur adipiscing". If I check "strip HTML tags" in the view for this field

* the output is "Lorem ipsum dolor sit ametconsectetur".
* a more logical output would be "Lorem ipsum dolor sit amet consectetur"

The difficulty here is that we want certain tags to be replaced by a space, and others with an empty string. So for example

amet</h3><p>consectetur ==> "amet consectetur"
amet</span><span>consectetur ==> "ametconsectetur"