Re: [xsl] EXSLT extension function

Subject: Re: [xsl] EXSLT extension function
From: Chris Loschen <closchen@xxxxxxxxxxxxxxxxxx>
Date: Sat, 31 Jul 2004 11:36:49 -0400
Hi Anton,

Thanks for your reply -- you'll have seen my later message about what ended
up working (I called the function with incorrect syntax), but you raise some
issues here that I worked through as well. So in the spirit of knowledge-sharing,
here are the answers to your queries:

At 11:15 AM 7/31/2004, you wrote:
Hi Chris,

you did import the exslt date stylesheet, didn't you?
(I don't see it in your fragment):
<xsl:import href="date.xsl" />

If you didn't, your stylesheet will know nothing about the named extension
templates (in other words, you're calling templates that don't exist)

No, I didn't import the exslt stylesheet. It's already supported by the processor
I'm using (Xalan-J), so declaring the namespace is sufficient. Take a look at
the same web page you cite below for more details.

But I suppose you did import it... Then take a look at your template calls:

<xsl:call-template name="date:hour-in-day"/>

You are calling the template with no parameters! How can the template
know what date/time you want to extract the hours of?

The default call with no parameters returns the current system time, which is what I wanted here. You can call it as you did below (and as the example on the web page is set up), but that would require a separate call to the date-time function (to populate the variable $date-str below) which isn't necessary because the function returns what I want already.

You will need something like:

  <xsl:call-template name="date:hour-in-day">
    <xsl:with-param name="date-time" select="$date-str"/>

If you want the current system time, you will need to call the
appropriate function "date:date-time()".


Anton Triest

Hope that helps! Thanks again for your reply.

----- Original Message -----
From: "Chris Loschen" <closchen@xxxxxxxxxxxxxxxxxx>
To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Friday, July 30, 2004 10:24 PM
Subject: [xsl] EXSLT extension function

> Hi everybody!
> I'm trying to pull in the system time (I'll want the date as well, but one
> thing at a time...)
> to my XSLT stylesheet. It looked like the EXSLT functions had just what I
> need, and
> they're supposedly supported by my XSLT processor (Xalan-J 2.6). But I'm
> getting this
> error:
> javax.xml.transform.TransformerException: ElemTemplateElement error:
> date:hour-in-day
> I might have the namespace wrong or perhaps I'm not calling the extension
> function
> correctly? I've done a Google search without finding anything. Anybody have any
> ideas? Thanks!
> Here is a fragment of the stylesheet (I know it's not well-formed -- I'm
> just copying the relevant section):
> <?xml version="1.0"?>
> <xsl:stylesheet version="1.0"
> xmlns:xsl="";
> xmlns:date="";
> extension-element-prefixes="date">
> <xsl:output method="xml" version="1.0" omit-xml-declaration="yes"
> indent="yes" />
> <xsl:template match="BillHeader">
> <xsl:variable name="time">
> <xsl:variable name="hours">
> <xsl:call-template name="date:hour-in-day"/>
> </xsl:variable>
> <xsl:variable name="minutes">
> <xsl:call-template name="date:minute-in-hour"/>
> </xsl:variable>
> <xsl:value-of select="concat($hours,$minutes)"/>
> </xsl:variable>
> etc.
> Yours,
> Chris Loschen
> closchen@xxxxxxxxxxxxxxxxxx
> 781-718-3017 (cell)


Chris Loschen
781-718-3017 (cell)

Current Thread