xslt multiple parameters into javascript - xslt

Question

Im trying to create a function in javascript in xsl which accepts multiple in-parameters. I can not get it to work and get the following error:
Code: 0x80020009
Microsoft JScript runtime error
Wrong number of arguments or invalid property assignment
line = 37, col = 2 (line is offset from the start of the script block).
Error returned from property or method call.
The function looks as follows:
<msxsl:script language="JavaScript" implements-prefix="jsfuncs">
<![CDATA[
function getLineLength (x1,x2,y1,y2)
{
var xVector = x2 - x1;
var yVector = y2 - y1;
var output = Math.sqrt(raised2(xVector)+raised2(yVector));
return output;
}
]]>
</msxsl:script>
The calling code looks as follows:
<xsl:value-of select="jsfuncs:getLineLength($x1,$x2,$y1,$y2)"/>
x1,x2... are variables set earlier and they are correct. I can get everything to work when I post-process the values to one parameter. Is it at all possible to pass multiple parameters in xslt to Javascript? The engine in use is msxml 3.0.

Answer 1

Here is an example passing in four parameters:
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ms="urn:schemas-microsoft-com:xslt"
xmlns:mf="http://example.com/mf"
exclude-result-prefixes="ms mf"
version="1.0">
<ms:script language="JScript" implements-prefix="mf">
function test(a, b, c, d) {
return a + ":" + b + ":" + c + ":" + d;
}
</ms:script>
<xsl:template match="/">
<xsl:value-of select="mf:test(1, 2, 3, 'foo')"/>
<br/>
<xsl:variable name="item" select="root/item"/>
<xsl:value-of select="mf:test(string($item/#a), string($item/#b), string($item/#c), string($item/#d))"/>
</xsl:template>
</xsl:stylesheet>
As you can see, when wanting to pass in a node to a function expecting a primitive value I would recommend to make sure to convert it on the XSLT side to a primitive value first, as done in mf:test(string($item/#a), string($item/#b), string($item/#c), string($item/#d)), as otherwise the function will get a node-set represented by some selection interface that you would need to iterate first.
The sample works fine for me with MSXML 3 and outputs 1:2:3:foo<br />1:2:3:whatever when run against an input sample with
<?xml version="1.0" encoding="UTF-8"?>
<root>
<item a="1" b="2" c="3" d="whatever"/>
</root>