Quote:
Originally Posted by roger64
The Sigil plugin can already -or will- convert EPUB2 footnotes to this EPUB3 standard?
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It's not
that smart.
But it'll convert a valid epub2 book to a valid epub3 book to get you started with epub3 book design. However, since the plugin is written in Python you could modify it yourself to automatically add the appropriate epub:type attributes if you consistently use the same classes for footnote references and footnotes.
Of course, you could also ask the Calibre developers to write a Calibre Editor function for you.
AFAIK, KevinH is already working on an ePub3 Sigil version, but it hasn't even reached Alpha status yet and, IIRC, Kovid Goyal has indicated that he isn't really interested in creating an ePub3 version of the Calibre Editor.