Quote:
Originally Posted by odamizu
Calibre is truly powerful. I know I've just scratched the surface. It's like an onion! 
I've been experimenting with removing unused CSS via the command line (ebook-polish -u). I didn't see any options in the Calibre manual that will trigger a listing of what was removed. Did I miss it somewhere? |
You haven't missed anything.
That kind of in-depth analysis is only available via the special Editor feature for showing the difference between two checkpoints.
(Remove Unused CSS like most global tools creates a checkpoint. Then it offers to show you What Changed.)
Quote:
|
I will explore that plug-in for removing those irritating empty <spans> (where do they come from and why? why? why?)
|
They can come from a few places, but almost always because someone did something wrong.
Or because you just cleaned up unused CSS -- there is an option to cleanup unused classes as well.
Very handy for Kobo or Google Play books which include squillions of junk spans for bookmarking purposes.