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EPUB Book Export #1581
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Originally created by @nosbig on GitHub (Mar 10, 2020).
Description:
I would like the ability to export an entire book directly to an epub format suitable for delivering to an ebook reader for offline viewing.
Benefits: This would allow for offline viewing of a book on an ebook reader, smart phone, or PC.
@homotechsual commented on GitHub (Mar 10, 2020):
Sorry - my bad- I'm remembering a discord discussion not and issue - all bleeding together!
@nosbig commented on GitHub (Mar 10, 2020):
Yeah, I did search for epub, and I found issue #43, but it seems to be focused more on importing items than an output format. It's easy for different support channels to bleed together.
@homotechsual commented on GitHub (Mar 10, 2020):
So - I've looked into this - there's one (OLD) PHP class that does epub exports - it doesn't work with PHP 7.3/7.4 as far as I can tell (or any PHP 7.x version!)
MediaWiki have an epub export extension - I'm going to take a look at that and see what they're doing under the hood (if it's still current!)
@knut02 commented on GitHub (Sep 17, 2020):
Would it perhaps be possible to do something along the lines of what pressbooks do, use underlaying software installed on the server to export to different formats. Install instructions show the different types of software you need to have installed to be able to export to the different formats.
@ErroneousBosch commented on GitHub (Jun 23, 2022):
ePub is an open standard, and the spec is available here. Building one from scratch isn't difficult, mostly some templated XML and a folder structure. The container is just a renamed ZIP file. You may already be partway there with your contained HTML export.
There are some libraries on packagist that can make this potentially easier. I might poke at a hack if I have time.
More in-depth structure info here: https://www.hxa.name/articles/content/epub-guide_hxa7241_2007.html