[xsl] should document-uri work like this?

Subject: [xsl] should document-uri work like this?
From: Fred Christian <fredc@xxxxxxxxxxxxxx>
Date: Sat, 1 Jan 2011 14:30:20 -0800
I am using the document() function to access another xml file, but I
am having trouble getting my relative URI to work.
Two solution ideas.

1. Use document-uri to get a base uri to work from.
2. Find a way to modify my saxon command line call.
(Saxon 9 HE, using Java command line, I have 2.0 specified as my xsl version)

1.
I have a current result-document being output and am trying to get
document-uri to work.  See the following

<xsl:variable name="folder" select="format-number(position(), '00')"/>
<xsl:variable name="file">sp.html</xsl:variable>
<xsl:variable name="wb">./<xsl:value-of
select="$folder"/>/subfolder/index.xml</xsl:variable>
<xsl:result-document href="./{$folder}/{$file}">
 <xsl:variable name="thisdoc" select="document-uri(.)"/>
 ==<xsl:value-of select="base-uri()" />-TEST-base-uri
 ==<xsl:value-of select="$thisdoc" />-TEST-document-uri
 ==<xsl:value-of select="$wb" />-TEST-wb
 <xsl:if test="document($wb)">
 <script language="javascript" src="whiteboards/links.js"/>
 </xsl:if>
</xsl:result-document>
-------------
In my current output, my file 01/sp.html file is getting created properly.
It has this at the top where the TEST output is

==file:/C:/Users/Fred/Desktop/Test/IPC2/08_Files_Test/../xml/chapter.xsl-TEST
-base-uri
==-TEST-document-uri
==./01/subfolder/index.xml-TEST-wb

Note: My document-uri function isn't returning any value.
If I get that to output something then I hope to change my if
statement to something like,.
<xsl:if test="document($wb,$thisdoc)">

Two questions here.
- How do I get document-uri to work?
- Once I do, should this idea work to make the document() function
have a base-uri to resolve from?

-------
In my second solution idea of modifying the saxon command line call, I
haven't been able to figure that out and it wouldn't be as flexible
anyways. But if there is a way to make a change so the document()
function resolves from my source xml file instead of the xsl file that
would be helpful to learn.

command line I am currently using
java -cp c:\Saxon9\saxon9he.jar net.sf.saxon.Transform
-s:C1\indexC1.xml -xsl:..\xml\chapter.xsl -o:C1\toc.html
-----

Thanks
Fred

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