Why do some epub files not show in-page foonotes?

[xversion1]

I like to use in-page footnotes option but it works with some files and not with some others even I check all 6 options. Does anyone know why and how to fix it (I can use basic function of Calibre)?
Thanks!

Here a example file with a lot of notes, click on them and go back slowing my reading speed like 10x and really annoying: https://www.mediafire.com/file/zw8ft...bled.epub/file

[Jellby]

That book is most likely copyrighted (although I didn't check whether the translation and notes are CC or something, I confess). You can scramble it if you'd like others to look at it. I think there's a calibre plugin for that.

[xversion1]

Originally Posted by Jellby

That book is most likely copyrighted (although I didn't check whether the translation and notes are CC or something, I confess). You can scramble it if you'd like others to look at it. I think there's a calibre plugin for that.

What do you mean by "scramble it"? Sorry, I don't familiar with the term.

[Jellby]

Alter the text, but keep the format: https://www.mobileread.com/forums/sh...d.php?t=267998

[xversion1]

Originally Posted by Jellby

Alter the text, but keep the format: https://www.mobileread.com/forums/sh...d.php?t=267998

Here the scrambled file, hope it's OK : https://www.mediafire.com/file/zw8ft...bled.epub/file

[Frenzie]

It's not immediately clear to me why the .footnote class there isn't resulting in in-page footnotes, @poire-z should know. There are some limitations to the system when trying to do the best thing with what are effectively regular old links.

But there's a second footnote system in settings → taps & gestures → links → show footnotes in popups which does detect these.

[xversion1]

Originally Posted by Frenzie

It's not immediately clear to me why the .footnote class there isn't resulting in in-page footnotes, @poire-z should know. There are some limitations to the system when trying to do the best thing with what are effectively regular old links.

But there's a second footnote system in settings → taps & gestures → links → show footnotes in popups which does detect these.

Thanks a lot! This new trick is much better. For months I wondered why Koreader doesn't show notes as Kindle does and struggled with it taking me to another page every time I want to see a note, took me while to setup a gesture to go back to previous page as quick as possible. Now I can see notes as using Kindle. Still it'll be best if notes appear as in-page footnotes, no touching needed.

[Frenzie]

In-depth answer here: https://www.mobileread.com/forums/sh...d.php?t=341500

Still it'll be best if notes appear as in-page footnotes, no touching needed.

It's quite rare for me to come across one that doesn't work out of the box, let alone one that can't be massaged into it. Hopefully it'll be a case of first and only.

[xversion1]

Originally Posted by Frenzie

In-depth answer here: https://www.mobileread.com/forums/sh...d.php?t=341500


It's quite rare for me to come across one that doesn't work out of the box, let alone one that can't be massaged into it. Hopefully it'll be a case of first and only.

I can't open your link. Click on it lead back to this thread.

[hius07]

https://github.com/koreader/koreader...ment-911569190

[Frenzie]

Hasty copy-paste error, but already resolved.

[xversion1]

Originally Posted by hius07

https://github.com/koreader/koreader...ment-911569190

So, as I understand, there's no way to fix this book?

[Frenzie]

Not through styletweaks, but in principle you can fairly easily fix the book itself by fixing the IDs (for example with Sigil or just an archive application + text editor).

[xversion1]

Originally Posted by Frenzie

Not through styletweaks, but in principle you can fairly easily fix the book itself by fixing the IDs (for example with Sigil or just an archive application + text editor).

Can you elaborate? I don't know coding but I have calibre and can follow guide blindly. I guess replace function could be used to fix all IDs at once somehow?

[Frenzie]

The links to footnotes look like this:

<a href="part0025.html#mah0002108" id="mah0004586" class="calibre5"><sup class="EBsup">1</sup></a>

The footnote looks like this:

<p id="mah0002107" class="footnotes"><a href="part0015.html#mah0004586" id="mah0002108" class="calibre5"><sup class="EBsup">1</sup></a><em class="calibre7">Rwywbbh</em> huive zh lof. Bcq ozllz md Upqdn coxcvk ewyd ks Oyoun ucl gicp pqsottdyv dy Zdyfxgp 32 (Vggsbg 5).</p>

It will show up as a footnote if you move that ID attribute from the A element over to its parent P element:

<p id="mah0002108" class="footnotes"><a href="part0015.html#mah0004586" class="calibre5"><sup class="EBsup">1</sup></a><em class="calibre7">Rwywbbh</em> huive zh lof. Bcq ozllz md Upqdn coxcvk ewyd ks Oyoun ucl gicp pqsottdyv dy Zdyfxgp 32 (Vggsbg 5).</p>

Unfortunately I'm not sure if there's an easy way to automate that, and there are hundreds of footnotes.

There's probably something available in Node for example that'd allow you to write out a new file after performing a transformation like this

const footnotes = document.getElementsByClassName('footnotes');
// for each footnote
footnote.setAttribute('id', footnote.firstChild.getAttribute('id'));

Or as a regular expression, something along the lines of:

<p id="([a-z0-9]*)" class="footnotes"><a href="[a-z0-9]*\.html#[a-z0-9]*" id="([a-z0-9]*)"

And then you have to replace the first group by the second group…

The second would probably be easier to do, but either way I'm not sure if there's a user-friendly way to do it. Suggestions on nice GUI apps welcome.