For something of a simpler* solution, but in the same vein, there's HTML::TreeBuilder. HTML::Element provides all of the primitives that you really need for an operation like this: look_down
to identify relevant elements, replace_with_content
to "remove" a tag without removing what it contains, and delete
to completely destroy all signs of a given element. I'm not up to writing an example right now, but it's truly simple. Give it a shot! It goes a long way, and the output is bound to be less of a mess than the input.
* edit: okay, I realized that some might be confused by this usage of simple, since trwww's example is pretty simple in itself. Mostly it's a matter of being allowed to think in terms of tree manipulations instead of opens and closes and stacking and de-stacking. The corresponding cost is in storage, but it's usually not worrisome.
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