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
b...@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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