Quote:
Originally Posted by Josch91
is it possible, that Sigil is also reading out the chapter-informations from the "toc.ncx" file, when opening a ePub file. Because there are some ePubs without chapter tags in the html files. If you are opening this files with Sigil to edit them, all the chapter informations are gone.
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The NCX is always specific to the XHTML files in the epub. Since Sigil doesn't (in the current version) preserve the original file structure, that information is meaningless. The content of those XHTML files is loaded, and then transferred back into XHTML based on the location of the chapter breaks.
Somehow trying to preserve the NCX links to elements within the original XHTMLs also doesn't work, since HTML Tidy will rewrite the markup into something different and the original links will be meaningless too.
So no, the NCX information cannot be preserved.