At 2008-08-20 11:36 -0500, Russ Loucks wrote:
I have what I think should be a very easy problem to solve but the
solution eludes me.
The solution is in XSLT 2.0.
I have a simple stylesheet that attempts to lookup a value using the
xsl:key tag and key() functions.
I can easily get this to work if the lookup table is in a file and
read it in using the 'document()' function, as follows:
<xsl:stylesheet version="1.0"
You are using XSLT 1.0.
Below I've modified your stylesheet using XSLT 2.0, then I rewrote
the template rule taking advantage of the new argument introduced in key().
I hope this helps.
. . . . . . . . . . Ken
T:\ftemp>type russ.xml
<dataList>
<data>key2</data>
<data>key1</data>
</dataList>
T:\ftemp>type russ.xsl
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:exsl="http://exslt.org/common";
extension-element-prefixes="exsl"
>
<xsl:variable name="lookupRTF">
<entries>
<entry key="key1">lookup entry 1</entry>
<entry key="key2">lookup entry 2</entry>
<entry key="key3">lookup entry 3</entry>
</entries>
</xsl:variable>
<xsl:key name="lookupKey" match="entry" use="@key"/>
<xsl:template match="dataList/data">
<xsl:variable name="dataKey" select="."/>
data key: <xsl:value-of select="$dataKey" />
<xsl:for-each select="$lookupRTF" >
lookup entry value: <xsl:value-of
select="key('lookupKey', $dataKey)"/>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
T:\ftemp>call xslt2 russ.xml russ.xsl russ.out
T:\ftemp>type russ.out
<?xml version="1.0" encoding="UTF-8"?>
data key: key2
lookup entry value: lookup entry 2
data key: key1
lookup entry value: lookup entry 1
T:\ftemp>type russ2.xsl
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:exsl="http://exslt.org/common";
extension-element-prefixes="exsl"
>
<xsl:variable name="lookupRTF">
<entries>
<entry key="key1">lookup entry 1</entry>
<entry key="key2">lookup entry 2</entry>
<entry key="key3">lookup entry 3</entry>
</entries>
</xsl:variable>
<xsl:key name="lookupKey" match="entry" use="@key"/>
<xsl:template match="dataList/data">
data key: <xsl:value-of select="." />
lookup entry value: <xsl:value-of select="key('lookupKey',
., $lookupRTF)"/>
</xsl:template>
</xsl:stylesheet>
T:\ftemp>call xslt2 russ.xml russ2.xsl russ2.out
T:\ftemp>type russ2.out
<?xml version="1.0" encoding="UTF-8"?>
data key: key2
lookup entry value: lookup entry 2
data key: key1
lookup entry value: lookup entry 1
T:\ftemp>rem Done!
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