As David has pointed out the // operator is very costly. So I have
replaced them by explicit xpath expressions and would be interested
about the performance now. However I could not resist to replace
count(.//Col)*$msrs
by
count(Col)*$msrs
Most of the rest I have l left unchanged. I also noticed the
depreciated <nobr>, which should be replaced by css white-space:
nowrap.
Manfred
<?xml version="1.0" encoding="UTF-8" ?>
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:param name="axisHeads" select="'false'" />
<!--
java -jar D:\Programme\Saxon6\saxon.jar slow.xml slow.xsl
-->
<xsl:output indent="yes"/>
<xsl:variable name="msrs">
<xsl:choose>
<xsl:when test="/Reports/Report/Measures/Measure">
<xsl:value-of select="count(/Reports/Report/Measures/Measure)"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="1"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:template match="Reports">
<html>
<body>
<xsl:apply-templates/>
</body>
</html>
</xsl:template>
<xsl:template match="Report" >
<!-- Top -->
<div id="g1" style="position: absolute; top: 0px; left: 0px;
width: 400px; height: 12px">
<table class="grdTop" border="0" cellspacing="1" cellpadding="0">
<tbody>
<xsl:apply-templates select="Columns" />
</tbody>
</table>
</div>
</xsl:template>
<xsl:template match="Columns">
<xsl:apply-templates select="ColGrp[1]" mode="Header">
<!-- 0 for top level heading, 1 to cut it out -->
<xsl:with-param name="depth">
<xsl:choose>
<xsl:when test="$axisHeads='true'">
<xsl:value-of select="0"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="1"/>
</xsl:otherwise>
</xsl:choose>
</xsl:with-param>
</xsl:apply-templates>
</xsl:template>
<xsl:template match="ColGrp" mode="Header">
<xsl:param name="depth" />
<tr>
<!-- the very first row needs a padding cell -->
<xsl:for-each
select="/Reports/Report/Columns/ColGrp/ColGrp[count(ancestor::ColGrp)=$depth]">
<td colspan="{count(Col)*$msrs}" align="center" style="overflow:none">
<nobr>
<div>
<xsl:value-of select="@heading"/>
</div>
</nobr>
</td>
</xsl:for-each>
</tr>
<xsl:choose>
<xsl:when test="ColGrp">
<xsl:apply-templates select="ColGrp[1]" mode="Header">
<xsl:with-param name="depth" select="$depth+1" />
</xsl:apply-templates>
</xsl:when>
<xsl:otherwise>
<xsl:apply-templates select="Col[1]" mode="colHead" />
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template match="Col" mode="colHead">
<tr>
<xsl:for-each select="ancestor::Columns/ColGrp/ColGrp/Col">
<td colspan="{$msrs}" valign="top" align="center" style="overflow:none">
<nobr>
<!-- 2003/2004 -->
<div>
<xsl:value-of select="@heading"/>
</div>
</nobr>
</td>
</xsl:for-each>
</tr>
<tr valign="bottom">
<xsl:for-each select="/Reports/Report/Columns/ColGrp/ColGrp/Col">
<xsl:apply-templates select="/Reports/Report/Measures">
<xsl:with-param name="pos" select="position()" />
</xsl:apply-templates>
</xsl:for-each>
</tr>
</xsl:template>
<xsl:template match="Measures">
<xsl:param name="pos" />
<xsl:for-each select="Measure">
<xsl:variable name="mPos">
<xsl:value-of select="position()" />
</xsl:variable>
<td align="center">
<nobr>
<div class="action" style="width:90px; overflow:none"
onclick="sortFullGrid({$mPos}, {$pos}, '{(_at_)class}')">
<xsl:value-of select="@heading"/>
</div>
</nobr>
</td>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
On 29/02/2008, Cleyton Jordan <cleytonjordan(_at_)yahoo(_dot_)co(_dot_)uk>
wrote:
Hi David,
>without following in detail what processing you are
>doing it's hard to
> say
sorry got to dash, perhaps someone else can say more!
>David
I need to build a nested heading Rows/Columns (<TR>
and <TD>). The output should look like this for the
2003 heading:
2003
Quarter 1 Quarter 2 Quarter 3
Quarter 4
Total Pages Cost Total Pages Cost Total Pages Cost
Total Pages Cost
<ColGrp heading="Quarter">
<ColGrp heading="2003">
<Col heading="Quarter 1" />
<Col heading="Quarter 2" />
<Col heading="Quarter 3" />
<Col heading="Quarter 4" />
</ColGrp>
</ColGrp>
I use the xpath below to get me to the inner most
ColGrp (parent of Col elements).
Normally $depth = 1
//ColGrp[count(ancestor::ColGrp)=$depth]
//ColGrp[count(ancestor::ColGrp)=1]
So, I go to the ancestor:ColGrp whose depth = 1
This will produce the first <TD>s
2003 2004
Then all the Col elements will produce the second row
with all the <TD>s
Quarter 1 Quarter 2 Quarter 3 Quarter 4
And lastly, for each Col element I have to go back to
the Measure elements to produce the final Row which
will be the same for all the Col elements
Total Pages Cost Total Pages Cost Total Pages Cost
Total Pages Cost
Therefore, this is the output I get with my XSLT but
it is too slow for big xml docs.
2003
Quarter 1 Quarter 2 Quarter 3 Quarter 4
Total Pages Cost Total Pages Cost Total Pages Cost
Cheers
C
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