Re: [xsl] user defined data elements in stylesheets

Subject: Re: [xsl] user defined data elements in stylesheets
From: "Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 6 Dec 2019 11:05:49 -0000
Am 06.12.2019 um 11:55 schrieb Mukul Gandhi gandhi.mukul@xxxxxxxxx:
Hi all,
B  B I'm trying to use 'user defined data elements' in an XSLT stylesheet.

Following is my XSLT transformation example,

XML input document:

<?xml version="1.0" encoding="UTF-8"?>
B  B <a val="-1"/>
B  B <a val="-4"/>
B  B <a val="5"/>
B  B <a val="3"/>
B  B <a val="2"/>

XSLT stylesheet (file proc1.xsl, with local absolute URI

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="";
B xmlns:m_ns0="";
B  B  B  B  B  B  B  B  B  B  B  B  B exclude-result-prefixes="m_ns0"
B  B  B  B  B  B  B  B  B  B  B  B  B version="3.0">

B  B  <xsl:output method="xml" indent="yes"/>
B  B  <!-- this is the user defined data element -->
B  B  <m_ns0:names>
B  B  B  B <name>jill</name>
B  B  B  B <name>jane</name>
B  B  B  B <name>hello1</name>
B  B  </m_ns0:names>

B  B  <xsl:template match="root">
B  B  B  B <result>
B  B  B  B  B  <xsl:copy-of

B  B  B  B  B  <xsl:apply-templates select="a[number(@val) gt 0]"
B B B B B <xsl:apply-templates select="a[number(@val) lt 0]"
B  B  B  B </result>
B  B  </xsl:template>

B  B  <xsl:template match="a" mode="gt0">
B  B  B  <val><xsl:value-of select="@val"/>: positive</val>
B  B  </xsl:template>

B  B  <xsl:template match="a" mode="lt0">
B  B  B  <val><xsl:value-of select="@val"/>: negative</val>
B  B  </xsl:template>


The above transformation produces, following result,

<?xml version="1.0" encoding="UTF-8"?>
B  B <m_ns0:names xmlns:m_ns0="";>
B  B  B  <name>jill</name>
B  B  B  <name>jane</name>
B  B  B  <name>hello1</name>
B  B </m_ns0:names>
B  B <val>5: positive</val>
B  B <val>3: positive</val>
B  B <val>2: positive</val>
B  B <val>-1: negative</val>
B  B <val>-4: negative</val>

The above output is what I'm expecting.

Following are my questions,

You could see that, within my stylesheet, I've used following
stylesheet instruction,


I've used the absolute URI of the stylesheet document, as argument to
the document() function. Is it possible, to specify the stylesheet
document reference to the document() function in a portable way (i.e,
not an absolute URI)?

The usual way is

B B document('')

but it is not portable in any case, if the stylesheet was loaded from a
string for instance, that call might fail.

In XSLT 2 and 3 I think I would prefer to use a parameter or variable
with element contents instead of user defined data elements, I think
user defined data elements are mainly useful in XSLT 1 to work around
the result tree restriction of any param/variable containing nodes.

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