[GUI Plugin] EpubSplit

[GeckoFriend]

I tried to split an epub today and received the following error message:

calibre, version 3.3.0
ERROR: Unhandled exception: <b>AttributeError</b>:'NoneType' object has no attribute 'getElementsByTagName'

calibre 3.3 embedded-python: True is64bit: False
Windows-10-10.0.15063-SP0 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '10', '10.0.15063')
Python 2.7.12+
Windows: ('10', '10.0.15063', 'SP0', u'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: DeDRM (6, 3, 2) && Kindle and Mobipocket DeDRM (0, 4, 18) && Ignoble Epub DeDRM (0, 2, 6) && Inept Epub DeDRM (0, 2, 1) && Inept PDF DeDRM (0, 1, 9) && eReader PDB 2 PML (0, 0, 8) && Modify ePub (1, 3, 13) && Barnes & Noble (1, 2, 14) && EpubMerge (2, 1, 1) && Reading List (1, 6, 6) && Find Duplicates (1, 6, 3) && Manage Series (1, 2, 8) && Overdrive Link (2, 15, 0) && Open With (1, 5, 10) && Count Pages (1, 8, 0) && Favourites Menu (1, 0, 4) && Search The Internet (1, 7, 6) && Quality Check (1, 9, 11) && View Manager (1, 4, 3) && EpubSplit (2, 2, 1) && Resize Cover (1, 0, 2) && Overdrive Link* (2, 15, 0)
Traceback (most recent call last):
File "calibre_plugins.epubsplit.epubsplit_plugin", line 137, in plugin_button
File "calibre_plugins.epubsplit.epubsplit", line 624, in get_split_lines
File "calibre_plugins.epubsplit.epubsplit", line 556, in get_toc_map
AttributeError: 'NoneType' object has no attribute 'getElementsByTagName'

I have no clue what this means. Any help greatly appreciated.

[JimmXinu]

Originally Posted by GeckoFriend

I tried to split an epub today and received the following error message:
...
File "calibre_plugins.epubsplit.epubsplit", line 556, in get_toc_map
AttributeError: 'NoneType' object has no attribute 'getElementsByTagName'

I have no clue what this means. Any help greatly appreciated.

EpubSplit couldn't find the Table of Contents metadata in the epub.

The most likely cause is that the epub is malformed or incomplete. Usually a pass through Calibre's convert (epub->epub) will help.

It's less likely but possible that it's a good epub with an unanticipated form. I'd have to see a copy of the epub to know.

[GeckoFriend]

Thank you! Converting fixed the problem.

[rfog]

Feature Request.

I've successfully using this tool to split omnibus that are bigger than the maximum Amazon personal documents size. I normally use to split at 50/50 size, but sometimes it is very difficult to accomplish it because the size of the content is not linear. For example, separating the Delphy Complete Works of H.G. Wells by the 50%/50% sections deals in 40/15MB file sizes. Even looking in the Calibre Book Viewer to locate 22K/22K pages does generate two big different sizes books.

My request is if there can be an extra button that will find the nearest 50/50% section in physical size. Once selected that section, user can go up/down to find the novel that separates nearest to the center.

I think this could be not much complex if the tool will measure each section size and if it contains images and add those images to the amount.

Or even more, ask for a number of parts and then select those parts.

[JSWolf]

Or you could just use a USB cable with Calibre to put these rather large eBooks on your Kindle.

[rfog]

Originally Posted by JSWolf

Or you could just use a USB cable with Calibre to put these rather large eBooks on your Kindle.

Ye, but then I lose the sync across devices, that is what I really want.

[JimmXinu]

@rfog,

EpubSplit is built around splitting on TOC entry boundaries. I'm not interested in trying to add code to make it split at arbitrary byte sizes.

But I might be able to add code to show how many bytes will be included in the currently selected TOC sections.

That's going to depend on how complex it is to get the size of sections that have to be split out from files (ie, aren't whole files themselves) and which images they include.

[rfog]

Originally Posted by JimmXinu

@rfog,

EpubSplit is built around splitting on TOC entry boundaries. I'm not interested in trying to add code to make it split at arbitrary byte sizes.

I was not interested on that, and could be complex, as you must "complete" the tags from the cut part. I mean, you cut at bold and italic then you must add the closing ones in the first part and the opening ones in the second part, plus the section, paragraph, etc..

Originally Posted by JimmXinu

But I might be able to add code to show how many bytes will be included in the currently selected TOC sections.

That's going to depend on how complex it is to get the size of sections that have to be split out from files (ie, aren't whole files themselves) and which images they include.

And yes, that is what I would like to have! And does not need to be completely exact. The idea is to have a book divided in more or less half and half parts.

[JimmXinu]

Doing it as a live-updating counter would be both difficult and inaccurate.

Instead, here's a test version that just adds a button to calculate the resulting epub size directly.

[rfog]

Originally Posted by JimmXinu

Doing it as a live-updating counter would be both difficult and inaccurate.

Instead, here's a test version that just adds a button to calculate the resulting epub size directly.

Will check this evening at home (currently at work, European Time).

Thank you.

[rfog]

Just tested.

Works fine and is enough for me. This way we can get a approximate amount of what will be used by the book.

You are great!!!!

:t hanks:

[JimmXinu]

Great! I'm going to wait a few days (maybe a week) to give some time for the Transifex volunteer translators to update the translations for the new strings.

(As, I assume, a Spanish speaker, you might be interested in contributing Spanish translations. See calibre/calibre-plugins on transifex).

[rfog]

Yes, I'm Spanish.

Just added the new 6 Spanish strings for your project. Next days I will review the strings done.

I will try to monitor the projects, but if you need new translations (or reviews), please ask me here or via MP.

[JimmXinu]

Thanks!

[JimmXinu]

New Release Posted

Version 2.3.0 - 04 Dec 2017

• Add feature to calculate size of split book.
• Update translations (from Transifex.com).