06-02-2015, 03:28 AM | #1 |
Wizard
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EPUB3 footnote validation
Hi
Pop-up notes are one of the advantages of the new EPUB3 format, and so I made some tries with them. In the joint screenshots you'll find - a view of a fragment of the hmtl5 file, taken from the Calibre editor - the EPUBcheck comment on it, with an error I do not understand. Does somebody understand how to suppress this error? |
06-02-2015, 04:24 AM | #2 |
Grand Sorcerer
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You'll need to add the declaration marked in Magenta to the document header:
Code:
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops">
It'll also reformat/add other files for epub3 compatibly. Last edited by Doitsu; 06-02-2015 at 04:34 AM. |
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06-02-2015, 06:12 AM | #3 |
Wizard
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@Doitsu
Thank you very much. That was it. I was puzzled because my syntax for the footnote had been copied from an EPUB3 sample. Do you know if recent e-readers (or e-readers with recent software) make good use of this code? Because I know of many books where this feature would provide a much welcome help. |
06-02-2015, 06:25 AM | #4 | |
Grand Sorcerer
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Quote:
However, only iBooks automatically hides the aside footnote definition. |
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06-02-2015, 06:35 AM | #5 |
Wizard
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So we still have time to prepare.
The Sigil plugin can already -or will- convert EPUB2 footnotes to this EPUB3 standard? |
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06-02-2015, 06:44 AM | #6 | |
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Quote:
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. |
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06-02-2015, 07:04 AM | #7 | |
Wizard
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Quote:
I use writer2xhtml which converts odt files to EPUB3 (alpha version). But only some basic features are implemented for now. I think it's a matter of two or three months (maybe) to get a more complete version. |
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06-02-2015, 11:16 AM | #8 | ||
A Hairy Wizard
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Quote:
Quote:
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06-02-2015, 12:01 PM | #9 | |
Grand Sorcerer
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Quote:
Unfortunately, it's also only available for iOS. |
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06-02-2015, 12:40 PM | #10 |
A Hairy Wizard
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No worries. The only question was that of popup support, not embedded fonts or platform. lol
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06-02-2015, 01:58 PM | #11 |
Wizard
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Also be aware that those kinds of footnotes are not backwards compatible on ePUB2, even if you make a hybrid ePUB.
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06-03-2015, 07:56 AM | #12 |
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Also, just FYI, some readers should be able to popup footnotes even without the epub 3 footnote markup. For example, the Kindle readers support popup footnotes as does the calibre viewer. Hopefully, the technique will become more widespread over time in the EPUB world, making specialized markup unnecessary.
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