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Evolution of Publishing Semantics

Think you’ve finally got your bearings in the shifting world of publishing semantics? Well, get ready for another change. One of the things I’ve been working on over the last year is to help develop a specification that will bring many of the semantics defined in the EPUB Structural Semantics Vocabulary more directly into the HTML/accessibility world via integration with the ARIA role attribute.

A first draft of what is now called the Digital Publishing WAI-ARIA Module is available for review — but it’s still too early for use, so don’t rush out to use it after reading. What is being sought at this time is feedback, so I’m going to give a little rundown of it and its development for this post for anyone not familiar with its development.Continue Reading Evolution of Publishing Semantics

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The Making of Multiple Renditions

Always wanted to put more than one rendering of your publication in a single EPUB file but couldn’t figure out how to? Never fear, here comes EPUB Multiple-Rendition Publications 1.0 to save the day!

Now that the spec is finally wending its way to recommendation, I figured it was a good time to get back to the blog and have a look at how it works.

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My main point is?

The main element was a late addition to HTML 5.0, so late we didn’t even make mention of it in the EPUB Best Practices guide as it had gone to print by the time the element got accepted. The omission left me wondering if there are any cases in ebooks where including the element in publishing contexts would make sense, and I’m still drawing a blank.

Nothing about it seems pertinent to publishing, but it feels weird to say there’s an HTML element to avoid in ebooks. I’m going to see if I can talk my way into some use for it in this post, but I’m not feeling too hopeful right now. If nothing else, you’ll see clear evidence I rarely think my posts through before writing them.

Continue Reading My main point is?


The EPUB Universe

The Phoenix EDUPUB meetings reminded me that the EPUB universe is growing rapidly, and becoming harder to keep track of. I was going to try and put up a nice graphical representation of how the specs fit together, but then I remembered how bad I am at all things graphics.

Instead, I’m going to chart out a table of current specifications, and then list all the various bits and pieces that you can’t always find without scouring the spec documents.

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Package Document to Collection Converter

A quick note that I’ve added another conversion tool to the site.

No time to explain it today — I’ll expand this post later — but if you’ve followed the Distributable Objects or Scriptable Components specs, it’s a quick and dirty XSLT that will convert a package document to a collection element for embedding.

As the specs are still under development, don’t expect it to be perfect out of the box. There’s no place to put the prefix attribute if it’s specified on the package element, for example, so it comes out on the collection for now.

Accessible InDesign Fixed Layouts?

I’d heard rumour about the use of XHTML for fixed layouts in InDesign before the announcement of the new Creative Cloud 2014 suite this month, and having text-based pages — instead of them being purely image-based — sounded like a fantastic thing.

Add that Adobe included the ability to export the epub:type attribute, and it seemed like there was a lot to look forward to as far as making accessible ebooks.

But the all important question lingered… what would the actual output look like, and would it match the hype?

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Epubcheck in a language near you

Just an interesting note for those who don’t follow epubcheck development that localization of the messages in at least a couple of languages is being carried out for an upcoming release (Japanese and German).

Doesn’t sound like they’ll be able to cover all messages, since some are inherent to the technologies being used and can’t be modified, but for an internationally-used publishing format a step in the right direction.

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EPUB vs. Web Audio/Video Players

Have you tried to embed the YouTube video player in your EPUB book only to find it doesn’t work anywhere except maybe in the overly-loose browser-based Readium?

Felt the urge to rail against the EPUB working group for saying that audio and video can live outside the container only to get snagged on this problem?

You wouldn’t be the first, but opening EPUB to web-based audio and video players, as opposed to just files, is risky, and more complicated than just making an exception for “online players”.

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