How to access TOC?

acarter5 · 05-01-2022, 05:58 PM

I'm writing a plugin for exporting annotations as JSON but I noticed that some of my annotations are missing the chapter data.

Is there a way to access a book's TOC from the book_id? I'd need to access to TOC either in a subclass of the USBReader class or the Export class.

Follow up question: is there a method on the toc model for getting a chapter title from a page number?

kovidgoyal · 05-01-2022, 09:53 PM

There is no (simple) api for accessing tocs. In general you would use the polish container class with an epub or azw3 book to get tocs.

And none whatsoever for getting titles from page numbers (page numbers are very ill defined things).

ToC information when available is automatically added to annotations when they are creted. If it isnt there, it means it was not available.

acarter5 · 05-02-2022, 01:54 AM

Quote:

Originally Posted by kovidgoyal

There is no (simple) api for accessing tocs. In general you would use the polish container class with an epub or azw3 book to get tocs.

And none whatsoever for getting titles from page numbers (page numbers are very ill defined things).

ToC information when available is automatically added to annotations when they are creted. If it isnt there, it means it was not available.

Would it be possible to get the chapter title with the XPath of the annotation?

kovidgoyal · 05-02-2022, 04:23 AM

Quote:

Originally Posted by acarter5

Would it be possible to get the chapter title with the XPath of the annotation?

Anything is possible if you are wiling to write the code for it, but there isnt any pre-exisitng code for it.

05-01-2022, 05:58 PM	#1
acarter5 Junior Member Posts: 9 Karma: 10 Join Date: Feb 2022 Device: onyx boox note air	How to access TOC? I'm writing a plugin for exporting annotations as JSON but I noticed that some of my annotations are missing the chapter data. Is there a way to access a book's TOC from the book_id? I'd need to access to TOC either in a subclass of the USBReader class or the Export class. Follow up question: is there a method on the toc model for getting a chapter title from a page number?

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05-01-2022, 09:53 PM	#2
kovidgoyal creator of calibre Posts: 43,976 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	There is no (simple) api for accessing tocs. In general you would use the polish container class with an epub or azw3 book to get tocs. And none whatsoever for getting titles from page numbers (page numbers are very ill defined things). ToC information when available is automatically added to annotations when they are creted. If it isnt there, it means it was not available.