Re: [docbook-apps] EPUB3 default stylesheet throws NCX error

["Bob Stayton" <bobs@sagehill.net>]

Hi Mike,
The solution is to switch to the namespaced version of the DocBook XSL 
distribution (docbook-xsl-ns-1.78.1) when processing DocBook 5 documents. 
When the non-namespaced stylesheets encounter a DocBook5 document in the 
namespace, it first tries to convert it to the namespace.  It seems there is 
a bug in that process for epub3.  In general, that conversion process 
presents other problems as well, so I would recommend downloading and using 
the *ns* version of the stylesheets.

Bob Stayton
Sagehill Enterprises
bobs@sagehill.net

--------------------------------------------------
From: "Mike Cook" <m@mikecook.co.uk>
Sent: Tuesday, April 02, 2013 7:57 AM
To: <docbook-apps@lists.oasis-open.org>
Subject: [docbook-apps] EPUB3 default stylesheet throws NCX error

> Hi List, I'm having an issue when running the default EPUB3 stylesheets on 
> a document (see below for XML) as I'm getting an error with the generated 
> NCX file.
>
> (I'm running on OSX Lion and I've referenced the stylesheets directly for 
> these examples)
>
> $ xsltproc 
> http://docbook.sourceforge.net/release/xsl/1.78.1/epub3/chunk.xsl test.xml
> ...
>   Generating NCX file ...
>   Request for title of element with no title: div (id="idp704")
>   Request for title of element with no title: code (contained in )
>   Writing OEBPS/toc.ncx for book
>
> The NCX has an error in the title;
>     <docTitle><text>My First Book???TITLE??????TITLE???</text></docTitle>
>
> Also, the OPF has two extra itemref entries at the end of the <spine>.
>
> If however I remove xmlns from the <book> node, it then works fine; <book 
> version="5.0">
>
> This solution is obviously wrong as the XML then fails validation;
>
> $ xmllint --relaxng 
> http://www.docbook.org/xml/5.0/rng/docbookxi.rng --noout test.xml
>
>   test.xml:2: element book: Relax-NG validity error : Expecting element 
> set, got book
>   test.xml:2: element book: Relax-NG validity error : Expecting a 
> namespace for element book
>   test.xml:2: element book: Relax-NG validity error : Did not expect 
> element book there
>   test.xml:2: element book: Relax-NG validity error : Expecting element 
> section, got book
>   test.xml:2: element book: Relax-NG validity error : Expecting element 
> setindex, got book
>   test.xml fails to validate
>
>
> Perhaps it's related to my system - can I ask if anyone else gets the same 
> errors?
>
> I haven't done any XSLT programming in four years and I'm new to Docbook, 
> so I want to make sure I have everything set up correctly before I start 
> customising.
>
>
> Many thanks,
>
> Mike Cook
>
>
>
> Example used;
>
> <?xml version="1.0" encoding="utf-8"?>
> <book xmlns="http://docbook.org/ns/docbook"; version="5.0">
>   <info>
>     <title>My First Book</title>
> <author><personname><firstname>Jane</firstname><surname>Doe</surname></personname></author>
> <copyright><year>2010</year><holder>Jane Doe</holder></copyright>
>   </info>
>   <chapter>
>     <title>Chapter 1</title>
>     <para>Paragraphs</para>
>   </chapter>
> </book>
>
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