Subject: Re: [xsl] node-set processing From: Kamal Bhatt <kbhatt@xxxxxxxxx> Date: Mon, 05 Dec 2005 14:49:02 +1100 |
Thanks. G. Ken Holman wrote:
At 2005-12-05 10:20 +1100, Kamal Bhatt wrote:
For example, does a nodeset keep the position of the original source
Not even .. position() is only relative to the "current node set" as a result of the last push (<xsl:apply-templates>) or pull (<xsl:for-each>) ... not a node set variable and not the source node tree.
or will position give me the position in the node set?
Nope.
Can you even run position on a node-set?
Nope.
I tell my students in such a case when using XSLT 1.0 to just index into the node set using another variable that is a number, using a recursive template. Very much programming and quite unlike templating.
I hope the example below helps.
. . . . . . Ken
T:\ftemp>type kamal.xml <Table> <Row> <Cell>Cell 1</Cell> <Cell>Cell 2</Cell> </Row> <Row> <Cell>This is the longest cell</Cell> <Cell>Cell 3</Cell> </Row> </Table>
T:\ftemp>type kamal.xsl <?xml version="1.0" encoding="ISO-8859-1"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="text"/>
<xsl:template match="/Table"> <xsl:call-template name="find-longest"> <xsl:with-param name="set" select=".//Cell"/> </xsl:call-template> </xsl:template>
<xsl:template name="find-longest">
<xsl:param name="set"/>
<xsl:param name="index" select="1"/>
<xsl:param name="longest" select="0"/>
<xsl:choose>
<xsl:when test="$index > count($set)">
<!--finished looking-->
<xsl:value-of select="$longest"/>
</xsl:when>
<xsl:when test="string-length($set[$index])>$longest">
<!--found new longest-->
<xsl:call-template name="find-longest">
<xsl:with-param name="set" select="$set"/>
<xsl:with-param name="index" select="$index + 1"/>
<xsl:with-param name="longest" select="string-length($set[$index])"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<!--this isn't any longer-->
<xsl:call-template name="find-longest">
<xsl:with-param name="set" select="$set"/>
<xsl:with-param name="index" select="$index + 1"/>
<xsl:with-param name="longest" select="$longest"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet> T:\ftemp>xslt kamal.xml kamal.xsl con 24 T:\ftemp>
-- Upcoming XSLT/XSL-FO hands-on courses: Denver,CO March 13-17,2006 World-wide on-site corporate, govt. & user group XML/XSL training. G. Ken Holman mailto:gkholman@xxxxxxxxxxxxxxxxxxxx Crane Softwrights Ltd. http://www.CraneSoftwrights.com/s/ Box 266, Kars, Ontario CANADA K0A-2E0 +1(613)489-0999 (F:-0995) Male Cancer Awareness Aug'05 http://www.CraneSoftwrights.com/s/bc Legal business disclaimers: http://www.CraneSoftwrights.com/legal
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