[silentbicycle]

Indeed. I'm no stranger to re-implementing something because no existing version was quite what I wanted, either. On rereading, my post didn't really come across like I intended.

Then again, even when implementing something that (it turns out) already exists, solving the problems that come up along the way almost always teaches one something.

And with Emacs extensions, even if you're the only one who finds it useful, it's still useful. :)