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Creating Japanese epub3 and kindle books from aozora bunko texts
#1  mike2046 03-05-2013, 05:10 PM
Hi,

I recently came across a bit of software AozoraEpub3 which can convert Aozora .txt files into epub3 format files. See the following link for more information

http://blog.preining.info/2013/01/10/converting-aozora-documents-to-kindle/

it can produce either vertical and horizontal format files, depending on settings, and can also be set to exclude images. It also seems to handle ruby text when present. As the interface is in Japanese, the above link is useful for explaining how to use it - although as icons are used a lot some functions can be guessed at. Once an epub3 format file is produced, this can be run through kindlegen to produce a version for a Kindle.

Using this I have been able to produce vertical text books for my Kindle White. These also include the ruby text. Pages turn from right to left as expected when going "forward" through the book.

The other bonus of this is that by looking at the contents of the epub file one gains an idea of how to create a vertical text format book - which can be applied to one's own material.
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#2  PoP 04-21-2013, 11:21 PM
Quite interesting. Just to report my findings on the Kindle Keyboard with firmware 3.4

Ruby works fine! Top to bottom, Right to Left not too good.

Following are (correct) Calibre vs (incorrect) Kindle rendering comparison

First page:
show attachment »show attachment »

Last page:
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...IMHO
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#3  Doitsu 04-22-2013, 05:45 AM
I looked into displaying vertical text some time ago and stumbled upon Ryan Stenhouse's website.
Stenhouse came up with an ingenious way to approximate vertically rendered Japanese text that works even on a K3.
HackyVertical.JPG 
[mobi] jatest.mobi (29.1 KB, 331 views)
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#4  PoP 04-22-2013, 07:21 AM
Good hack to know.

Previously I achieved a similar style in the Vulcan guide accompanying my NADSAT dictionary here, by using -webkit-transform:rotate(90deg); and a font with -90deg sideways glyphs.
show attachment »
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#5  Doitsu 04-22-2013, 08:17 AM
Quote PoP
Previously I achieved a similar style in the Vulcan guide accompanying my NADSAT dictionary here, by using -webkit-transform:rotate(90deg); and a font with -90deg sideways glyphs.
Also good to know.

IIRC, the official Amazon style guide doesn't mention that KF8 supports CSS3 2D Transforms in general and -webkit extensions in particular.
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#6  13xforever 06-20-2015, 03:03 AM
Guys, I might be necroposting, but I just wanted to say thank you, like a million times. You saved me a lot of time with this thread.
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#7  99nyorituryo 01-06-2020, 10:12 AM
I'm not the developer of AozoraEpub 3. I modified AozoraEpub 3.
It's interesting to see AozoraEpub 3 users overseas.

https://github.com/kyukyunyorituryo/AozoraEpub3
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#8  Quoth 01-07-2020, 08:59 AM
Use epub2 for ebooks, HTML for interactive / more advance. The epub3 is an almost pointless spec for ereaders, you need an app on a tablet, in which case HTML etc is a better more portable solution!

If what you want doesn't work on ePub2, then use HTML.
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#9  JSWolf 01-07-2020, 09:31 AM
Quote FrustratedReader
Use epub2 for ebooks, HTML for interactive / more advance. The epub3 is an almost pointless spec for ereaders, you need an app on a tablet, in which case HTML etc is a better more portable solution!

If what you want doesn't work on ePub2, then use HTML.
This is for a Kindle using KF8. KF8 does support vertical text.
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#10  Turtle91 01-07-2020, 10:57 AM
Quote FrustratedReader
Use epub2 for ebooks, HTML for interactive / more advance. The epub3 is an almost pointless spec for ereaders, you need an app on a tablet, in which case HTML etc is a better more portable solution!

If what you want doesn't work on ePub2, then use HTML.
I'm confused... ePub2 and ePub3 both use HTML... ePub3 simply allows some of the multimedia features, etc.
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