While I understand that Sigil is not diving in to epub3, I was wondering if there was a way to use Sigil to manage, well, proximations. Peter Krautzberger has produced a nice little package for the inclusion of MathJax (epub itself is available via the link at the bottom of this page:
http://boolesrings.org/krautzberger/...ssibly-others/ ) so that Math can be displayed in epub using a light version of MathJax included in the epub (as contrasted with calibre, for example, where MathJax is sourced through the reader.)
Sigil opens the epub without any problem, but when one saves Sigil creates a new ncx file and reassembles all files and directories before zipping to ensure compliance with epub2 I believe.
I guess I am wondering if there is a dumb switch that can tell Sigil to just rebuild it as it found it so that a user could use Peter's files as a Sigil template and be able to just manipulate the html for text.
I realize that this might be invoking a RTFM, and if so a pointer to where to start would be helpful :-)