Thanks Bob. I can confirm, removing the doctype-public from xhtml-1_1/docbook.xsl does lead to valid epubs.
<xsl:output method="xml" encoding="UTF-8" indent="no" doctype-public=""/> Have this error been introduced in a recent version of the Docbook XSL? I'm using the same Saxon version which I used last year to create my epub books and I did not had this error last year. 2013/4/17 Bob Stayton <[email protected]> > ** > I'm guessing that you are using Saxon for processing. This issue was > discussed a couple of weeks ago: > > https://lists.oasis-open.org/archives/docbook-apps/201304/msg00025.html > > Bob Stayton > Sagehill Enterprises > [email protected] > > *From:* Lars Vogel <[email protected]> > *Sent:* Wednesday, April 17, 2013 1:52 PM > *To:* DocBook Apps <[email protected]> > *Subject:* [docbook-apps] epub generation result has incorrect DocType > > Hello, > > I'm generating epub from Docbook input and getting during the validation > one error and one warning with regards to the Doctype. > > [java] Epubcheck Version 3.0 > [java] Validating against EPUB version 2.0 > [java] ERROR: > /home/vogella/workspace/docu/de.vogella.publishing/../output/epub/book.epub/OEBPS/content.opf: > Obsolete or irregular DOCTYPE statement. The DOCTYPE can be removed. > [java] WARNING: > /home/vogella/workspace/docu/de.vogella.publishing/../output/epub/book.epub/OEBPS/toc.ncx: > Irregular DOCTYPE: found '-//W3C//DTD XHTML 1.1//EN', expecting '<!DOCTYPE > ncx PUBLIC "-//NISO//DTD ncx 2005-1//EN" " > http://www.daisy.org/z3986/2005/ncx-2005-1.dtd";>'. > > My input looks simular to the XML file listed below. > > Any advice how to remove this error? I'm using DocBook XSL 1.77 for the > transformation. > > Best regards, Lars > > <?xml version="1.0"?> > > <book> > <bookinfo> > <title>Java programming with the Eclipse IDE</title> > <author> > <firstname>Lars</firstname> > <surname>Vogel</surname> > </author> > <copyright> > <year>2007</year> > <holder> Lars Vogel</holder> > </copyright> > <pubdate>17.02.2013</pubdate> > > <releaseinfo>Third edition > </releaseinfo> > > <mediaobject role="cover"> > <imageobject id="cover-image"> > <imagedata fileref="images/cover.png" align="center" /> > </imageobject> > </mediaobject> > </bookinfo> > <part> > <title>Eclipse Overview</title> > <chapter> > <title>Eclipse overview > and terminology > </title> > <para> This chapter gives a short introduction into > the Eclipse > project and the Eclipse IDE. > </para> > </chapter> > <part> > </book> >
