[docbook-apps] EPUB3 default stylesheet throws NCX error

[Mike Cook <m@mikecook.co.uk>]

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>