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I have a working transformation which merges Row elements into the
appropriate Category elements as shown, based on the range
category/@s <= row/@r <= category/@e This statement works, <xsl:copy-of select="/view/results/row[@r >= current()/@s and @r <= current()/@e]" /> but seems to slow things down as data volume increases. Is it possible to use a key to find elements within a range like this? I'm at a loss as to what the syntax might be. Any suggestions are appreciated! Thanks. Mike Simplified Input document
------------------------------------
<view>
<results>
<row r="20">
<col c="1">col 20.1 data</col>
</row>
<row r="21">
<col c="1">col 21.1 data</col>
</row>
<row r="22">
<col c="1">col 22.1 data</col>
</row>
</results>
<category>
<category s="18" e="19">cat a</category>
<category s="20" e="21">cat b</category>
<category s="22" e="25">cat c</category>
</category>
</view>
Transformation - without a key ---------------------------------------- <?xml version="1.0" encoding="utf-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output method="xml" encoding="utf-8" /> <xsl:template match="/view"> <xsl:copy> <xsl:apply-templates select="@*|node()"/> <xsl:copy-of select="/view/category" /> </xsl:copy> </xsl:template> <xsl:template match="results"> <!-- do not copy old results to output --> </xsl:template> <xsl:template match="/view/category"> <xsl:element name="results"> <xsl:call-template name="copy-attributes"> <xsl:with-param name="attributes" select="@*" /> </xsl:call-template> <xsl:call-template name="copy-attributes"> <xsl:with-param name="attributes" select="/view/results/@*" /> </xsl:call-template> <xsl:apply-templates select="category" /> </xsl:element> </xsl:template> <xsl:template match="category"> <xsl:variable name="row-test"> <!-- should be improved with a key --> <xsl:copy-of select="/view/results/row[@r >= current()/@s and @r <= current()/@e]" /> </xsl:variable> <xsl:if test="string-length($row-test) > 0"> <xsl:choose> <xsl:when test="category"> <xsl:element name="{name()}">
<xsl:call-template name="copy-attributes">
<xsl:with-param name="attributes" select="@*" />
</xsl:call-template>
<xsl:value-of select="text()" /><xsl:apply-templates select="category"/> </xsl:element> </xsl:when> <xsl:otherwise>
<xsl:element name="{name()}">
<xsl:call-template name="copy-attributes">
<xsl:with-param name="attributes" select="@*" />
</xsl:call-template>
<xsl:value-of select="text()" /> <xsl:copy-of select="$row-test" />
</xsl:element>
</xsl:otherwise>
</xsl:choose>
</xsl:if></xsl:template>
<xsl:for-each select="$attributes">
<xsl:attribute name="{name()}">
<xsl:value-of select="." />
</xsl:attribute>
</xsl:for-each></xsl:template> <xsl:template match="@*|node()"> <xsl:copy> <xsl:apply-templates select="@*|node()"/> </xsl:copy> </xsl:template> </xsl:stylesheet> _________________________________________________________________ FREE pop-up blocking with the new MSN Toolbar get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/
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