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All,
I've been using Cocoon 2.1.11 successfully for quite some time, and I'm
trying to add new capabilities to our product. I'm tripping-up when
trying to use fn:replace with a regular expression.
I'm on Debian Lenny with Debian's package-managed version of Sun JRE
1.6.0_20. I'm pretty sure I haven't messed with any of the libraries
that ship with Cocoon (such as Xalan, etc.), so it should be a pretty
stock install. I've packaged my own webapp rather than using the one
that Cocoon can build for you. I can give details of that process if
necessary.
I tried to use <xsl:analyze-string> which gave me a "cannot use
<xsl:analyze-string> here" error, so I tried changing my <xsl:stylesheet
version="1.0"> to <xsl:stylesheet version="2.0"> which fixed that error,
but didn't give me any output.
At any rate, my current stylesheet header looks like this (with
product-specific xmlns declarations removed for brevity:
<?xml version="1.0" ?>
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:fn="http://www.w3.org/2005/xpath-functions";>
Specifically, my original function call attempt is this (trying to
remove a query parameter form a query string):
<xsl:variable name="fixed-base-url">
<xsl:value-of select="$base-url" />
<xsl:text>?</xsl:text>
<xsl:value-of select="fn:replace($query-string,
'(&)?list_start=[0-9]+', '')" />
</xsl:variable>
Executing this results in the following error:
java.lang.IllegalArgumentException: argument type mismatch
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.xalan.extensions.ExtensionHandlerJavaPackage.callFunction(ExtensionHandlerJavaPackage.java:404)
at
org.apache.xalan.extensions.ExtensionHandlerJavaPackage.callFunction(ExtensionHandlerJavaPackage.java:440)
at
org.apache.xalan.extensions.ExtensionsTable.extFunction(ExtensionsTable.java:222)
at
org.apache.xalan.transformer.TransformerImpl.extFunction(TransformerImpl.java:473)
at
org.apache.xpath.functions.FuncExtFunction.execute(FuncExtFunction.java:208)
at
org.apache.xpath.Expression.executeCharsToContentHandler(Expression.java:313)
at org.apache.xalan.templates.ElemValueOf.execute(ElemValueOf.java:274)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2400)
at
org.apache.xalan.transformer.TransformerImpl.transformToRTF(TransformerImpl.java:1988)
...
(let me know if more of the stack trace would be helpful)
I thought I might have some weird kind of data, so I tried something
simpler, just to be sure:
<xsl:value-of select="fn:replace('abcabc', 'a', 'b')" />
The above gives me the same error. Either commenting-out the entire
<xsl:value-of> element or changing the select to select="''" removes the
error.
As for <xsl:analyze-string>, the following test resulted in no output:
<xsl:analyze-string select="'abcabc'" regex="a">
<xsl:matching-substring>
A
</xsl:matching-substring>
<xsl:non-matching-substring>
<xsl:value-of select="." />
</xsl:non-matching-substring>
</xsl:analyze-string>
... while I would have expected "AbcAbc" to be emitted. Perhaps I am
misusing the <xsl:analyze-string> element.
Can anyone offer any suggestions?
Thanks,
- -chris
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