Wow…you need a huge regular expression parser to do that I suspect.
Unfortunately, we’re not a code writing site.
That’s not to say that someone might not be able to point you in the right direction but, frankly, if your CMS is putting out that “fluff” it’s more of a systematic error than one that should be cleaned up with, what I would imagine, be an enormously complicated script.
I’d hire somone….
