Mega Code Archive
If test=not(preceding-sibling
<![CDATA[
File: Data.xml
<?xml version="1.0"?>
<addressbook>
<address>
<name>
<title>Ms.</title>
<first-name>Doris</first-name>
<last-name>Smith</last-name>
</name>
<street>707 Main Way</street>
<city>New York</city>
<state>ME</state>
<zip>00218</zip>
</address>
<address>
<name>
<first-name>Jane</first-name>
<last-name>Smith</last-name>
</name>
<street>283 First Avenue</street>
<city>Vancouver</city>
<state>MA</state>
<zip>02718</zip>
</address>
</addressbook>
File: Transform.xslt
<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text" indent="no"/>
<xsl:variable name="newline">
<xsl:text></xsl:text>
</xsl:variable>
<xsl:template match="/">
<xsl:text>Addresses sorted by zip code</xsl:text>
<xsl:value-of select="$newline"/>
<xsl:for-each select="addressbook/address">
<xsl:sort select="zip"/>
<xsl:sort select="name/last-name"/>
<xsl:sort select="name/first-name"/>
<xsl:variable name="lastZip" select="zip"/>
<xsl:if test="not(preceding-sibling::address[zip=$lastZip])">
<xsl:text>Zip code </xsl:text>
<xsl:value-of select="zip"/>
<xsl:text>: </xsl:text>
<xsl:value-of select="$newline"/>
<xsl:for-each select="/addressbook/address[zip=$lastZip]">
<xsl:sort select="name/last-name"/>
<xsl:sort select="name/first-name"/>
<xsl:if test="name/title">
<xsl:value-of select="name/title"/>
<xsl:text> </xsl:text>
</xsl:if>
<xsl:value-of select="name/first-name"/>
<xsl:text> </xsl:text>
<xsl:value-of select="name/last-name"/>
<xsl:value-of select="$newline"/>
<xsl:value-of select="street"/>
<xsl:value-of select="$newline"/>
</xsl:for-each>
</xsl:if>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
Output:
Addresses sorted by zip codeZip code 00218: Ms. Doris Smith707 Main WayZip code 02718: Jane Smith283 First Avenue
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