Re: [docbook-apps] Epub and Saxon

On Wed, Apr 3, 2013 at 10:04 AM, Bob Stayton <bobs@sagehill.net> wrote:

It is a bug in the epub/docbook.xsl stylesheet file. This template:

<xsl:template match="d:author|d:corpauthor" mode="opf.metadata">

creates the dc:creator element and tries to add an attribute named "opf:file-as" by calling the template named 'person.name.last-first'. However, that template generates an HTML <span> element, and you cannot put an element into an attribute value. The solution is to take the text value of the that template call:

<xsl:template match="d:author|d:corpauthor" mode="opf.metadata">
    <xsl:variable name="n">
      <xsl:call-template name="person.name">
        <xsl:with-param name="node" select="."/>
      </xsl:call-template>
    </xsl:variable>
    <xsl:element name="dc:creator">
      <xsl:attribute name="opf:file-as">
        <xsl:variable name="attvalue">
          <xsl:call-template name="person.name.last-first">
            <xsl:with-param name="node" select="."/>
          </xsl:call-template>
        </xsl:variable>
        <xsl:value-of select="$attvalue"/>
      </xsl:attribute>
      <xsl:value-of select="normalize-space(string($n))"/>
    </xsl:element>
</xsl:template>

I'll fix this in the source, and you can use this in your customization layer.

Bob Stayton
Sagehill Enterprises
bobs@sagehill.net

From: Marcel Tromp

Sent: Tuesday, April 02, 2013 1:40 PM

To: Bob Stayton

Cc: docbook-apps

Subject: Re: [docbook-apps] Epub and Saxon

It is the author element in info that triggers the problem:

      <author>
        <personname>
          <firstname>Marcel</firstname>
          <surname>Tromp</surname>
        </personname>
      </author>

If I use an empty authorgroup, no errors are generated. The error I showed before is generated twice: once for firstname, once for lastname.

MT
--

On Tue, Apr 2, 2013 at 8:56 AM, Bob Stayton <bobs@sagehill.net> wrote:

Hi Marcel,

Can you determine exactly which element in info is triggering that error? Perhaps comment out all but one element at a time?

Bob Stayton
Sagehill Enterprises
bobs@sagehill.net

From: Marcel Tromp

Sent: Monday, April 01, 2013 1:11 PM

To: docbook-apps

Subject: [docbook-apps] Epub and Saxon

Hi,

I am setting up flow to generate epub using 1.78.1, but will use Saxon instead of xsltproc.

With xsltproc, document converts without any warnings/errors, but Saxon throws recoverable errors:

Recoverable error
at xsl:attribute on line 211 of file://work/mtools/docbook-xsl-ns/dev/xhtml-1_1/inline.xsl:
Cannot write an attribute node when no element start tag is open
Writing OEBPS/content.opf

This seems to be caused by adding the author data to content.opf in line 260 of epub/docbook.xsl:

     <xsl:apply-templates select="/*/*[contains(name(.), 'info')]/*"
                                 mode="opf.metadata"/>

Although the generated file seems ok, the error output will be problematic/confusing for users.

Is there a way to suppress these errors, or even better, prevent them from happing?

MT
--

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