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Subject: Re: [docbook-apps] xsl parameter "ulink.footnotes" generating anerror


I can't duplicate this error in my environment, but that could be for
any number or reasons.  What I normally do when I have a name space
problem is the following:

- make sure everything refers to the correct name space (and the same
  namespace in the source, customization, and standard stylesheets).
- make sure the prefixes are correct (so if you say xmlns:db="...."
  you also use db:xxx, not d:xxx)
- add the namespace definition (the xmlns line) to the customization,
  even though it doesn't yet have any elements that need it.
- make sure everything's spelled right; I can't remember how many times
  I've typed xls:param instead of xsl:param:).
- try the transform with a different source file to be sure the problem
  isn't there (and use a minimum file; just a declaration and a section
  with no real content will do).

If one of those things doesn't solve the problem, then I'd suggest
reposting the question with more information on your environment (i.e.,
which version of the stylesheets, which xslt processor, your xml source
file, your OS, etc.).

Hope that helps.

Dick Hamilton

On Tue, 2008-06-17 at 22:29 +0200, Erik Leunissen wrote:
> Hello all,
> The statement:
>     <xsl:param name="ulink.footnotes">1</xsl:param>
> used in the customization layer below, triggers the following error message:
>     "XPath error : Undefined namespace prefix"
> Anybody know:
> - whether that's merely an annoyance or a real error?
> - how to prevent it from happening?
> Note aside:
>      I know that "ulink.show" needs to be set also,
>      if one sets "ulink.footnotes" to 1, but I left
>      it out from this example because it doesn't
>      appear to relate to the error message.
> Thanks in advance for any insight,
> Erik.
> ====== customization script following ==
> <?xml version='1.0'?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
>                 version="1.0">
> <!-- base stylesheet upon which the customizations build -->
> <xsl:import href="/usr/local/share/xml/docbook-xsl-current/fo/docbook.xsl"/>
> <!-- this triggers the error message "XPath error : Undefined namespace
> prefix" -->
> <xsl:param name="ulink.footnotes">1</xsl:param>
> </xsl:stylesheet>
> == end of message ==
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