DTD declaration in epub files

[burbles]

When I transform valid XML files using the DocBook 5 stylesheets, I get a DTD declaration just after the “<?xml version="1.0" encoding="utf-8" standalone="no"?>” declaration in content.opf, toc.ncx and container.xml files. All the XHTML files that are generated also contain the DTD, but it seems this doesn't pose any validation problems. I am running the transformation in oXygen 12.2 using the docbook 1.76.1 epub stylesheets (not the built-in ANT transformation) and Saxon 6.5.5. Has anyone come across this?

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Content.opf

<!DOCTYPE package

PUBLIC "-//W3C//DTD XHTML 1.1//EN"

"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">



Toc.ncx

<!DOCTYPE ncx

PUBLIC "-//W3C//DTD XHTML 1.1//EN"

"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">



Container.xml

<!DOCTYPE container

  PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

[sorin_ristache]

Hello,

There is a bug report with that problem opened in the Docbook XSL project. If you submit a vote or comment on that bug the project maintainers may increase its priority.


Regards,
Sorin

[burbles]

Thanks Sorin - I reopened that bug report; I was just looking for others on this forum who may have had the problem too.
Dave

[sorin_ristache]

I also sent the details for reproducing it:

-- DocBook XSL version 1.76.1 (latest version)

-- any Docbook XML file, for example:

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<article xmlns="http://docbook.org/ns/docbook" version="5.0">

    <info>

        <title>Article Template Title</title>

    </info>

    <sect1>

        <title>Section1 Title</title>

        <subtitle>Section1 Subtitle</subtitle>

        <para>Text</para>

    </sect1>

</article>

-- the command line:

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java  -cp lib\saxon.jar  com.icl.saxon.StyleSheet  -o sample.epub  docbook-epub-sample.xml  docbook\xsl\epub\docbook.xsl

The wrong DOCTYPE declaration is inserted with both the Saxon 6.5 processor and the Xalan one.


Regards,
Sorin