Hi list, I am somewhat of an XSL 2.0 newbie, and I have a fairly simple
question that doesn't necessarily have anything to do with 2.0, but
involves the xsl:function element.
In my XSL I have defined a function that will take a required, top-level
parameter (called 'position'), and then feeds this position into a
variable (called 'forward') that calls the function ('forwardURL') with
the 'postion' parameter as the value that references the value I need.
The function is used to return a URL value from the XML doc. That URL
should be available for referencing later in the HTML output through the
'forward' global attribute.
Whenever I try to invoke the code below, it chokes on data typing
issues, saying that it cannot add xs:string to xs:integer. What it is
trying to do is take the ($position) reference in the "forward" variable
and add it within the function to 1. But it's treating $position as a
string, not as an integer passed on as a value. How can I reference
$position (or any other variable/parameter) within a select/XPath-esque
attribute so that it doesn't treat $position as a literal string? Do I
use curly braces, brackets, or what?
I'm using Saxon 7.5.1 as servlet, with JDK 1.4.1.
Thanks for any help you can give.
Clay
<xsl:stylesheet version="2.0" xmlns:njp="http://...,etc.";
xmlns:xs="http://...,etc."; xmlns:mets="http://..., etc.">
<!-- shortened for brevity -->
<xsl:param name="position" required="yes" as="xs:integer"/>
<xsl:variable name="forward" as="xs:string"
select="njp:forwardURL($position)"/>
<xsl:variable name="array">
<xsl:for-each
select="mets:mets/mets:fileSec/mets:fileGrp/mets:file/mets:FLocat">
<id><xsl:value-of select="@ID"/></id>
<url><xsl:value-of select="@xlink:href"/></url>
<position><xsl:value-of select="position() - 1"/></position>
</xsl:for-each>
<xsl:for-each select="$dmdSec">
<dmd><xsl:value-of select="."/></dmd>
</xsl:for-each>
</xsl:variable>
<xsl:function name="njp:forwardURL">
<xsl:param name="placeholder"/>
<xsl:sequence select="$array/url[$placeholder + 1]"/>
</xsl:function>
...
<!-- the following appears within an xsl:template -->
<img id="mypic" class="border" alt="Page" src="{$forward}"/>
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list