XML (DocBook 5) -> HTML (w/ CSS) -> PDF

sematula · Post by **sematula** » Fri Sep 29, 2023 8:09 pm

I have a content library stored in DocBook 5 xml, and I'm using Oxygen XML Editor to apply transformation scenarios. I have a long history with HTML & CSS, and the XML->HTML custom transformation scenario is working well (i.e., the resulting HTML document looks the way I want, and has the content I want).

However, when I edit the transformation scenario and enable "Perform FO Processing" on the "FO Processor" tab (Input: XSLT result as input; Method: pdf; Processor: Apache FOP), I get the following error:

Code: Select all

DOCTYPE is disallowed when the feature "http://apache.org/xml/features/disallow-doctype-decl" set to true.

The resulting html file has "<!DOCTYPE HTML>" at the beginning of the document (before the opening <html> tag). I've tried preventing this by adding the following to my XSL file:

Code: Select all

<xsl:stylesheet>
	<xsl:output method='html' omit-xml-declaration='yes' indent='yes' doctype-public='' doctype-system=''/>
</xsl:stylesheet>

But the DOCTYPE declaration persists. I've also edited my fop.xconf to include:

Code: Select all

  <useragent>

      <!-- Set features for the XML parser -->
      <parser>
          <features>
              <!-- Allow DOCTYPE declarations -->
              <feature name="http://apache.org/xml/features/disallow-doctype-decl" value="false"/>
          </features>
      </parser>

  </useragent>

But that similarly has no effect on the outcome (i.e., still getting the same error). Thoughts and suggestions are appreciated.