Hi Lars,
You should get that message only when two conditions are met:
1. You are processing a DocBook 5 document with the non-namespaced stylesheets.
or
You are single-step profiling by using profile-docbook.xsl (probably your
case).
and
2. You are using xsltproc (which lacks an extension function to get the name
of the current directory).
With either condition in (1), the document is preprocessed into an internal
nodeset (a nodeset held in memory) before being processed by the stylesheets.
The internal nodeset loses all contact with the filesystem where the files
originated, so the preprocessing template tries to add relative directory
references into the internal nodeset by adding xml:base attributes to preserve
the relative locations. It uses an extension function to get the original base
directory of the document, but xsltproc does not have a function to fetch that
information, while Saxon and Xalan do.
So if you use modular doc and the modules are in various directories, that
directory structure information gets lost in the internal subset. If your
documents don't need such xml:base attributes, then it has no effect on your
output.
You can avoid it by either using Saxon, or by using two-step profiling.
Bob Stayton
Sagehill Enterprises
[email protected]
From: Lars Vogel
Sent: Tuesday, May 14, 2013 7:13 AM
To: DocBook Apps
Subject: [docbook-apps] WARNING: cannot add @xml:base to node set root element.
Relative paths may not work.
Hello,
since a while I get the following warning during the transformation with the
docbook distribution:
WARNING: cannot add @xml:base to node set root element. Relative paths may not
work.
I'm not sure what triggers this warning, a Google search resulted in hints
about Docbook V5.0 but I'm still using Docbook 4.5.
I'm currently using the docbook-xsl-1.77.1 distribution and I think (but I'm
not sure) that I have this warning since I upgraded from 1.76. The output looks
ok to me, but this warning does not create a warm fussy feeling. ;-)
Any hint how to get rid of this warning?
Best regards, Lars
