This is the mail archive of the
xsl-list@mulberrytech.com
mailing list .
Variable Scope
- To: XSL-List at mulberrytech dot com
- Subject: Variable Scope
- From: Stuart Wilson <coracle at totalise dot co dot uk>
- Date: Thu, 9 Nov 2000 12:15:30 +0000
- Reply-To: xsl-list at mulberrytech dot com
Hi,
I've been looking through the FAQ and have a question about one of the
examples under the "Basic Troubleshooting/Tables" section. The input is
<?xml version='1.0'?>
<TASKS>
<TASK>
<COMPONENTS>
<COMPONENT>A</COMPONENT>
<COMPONENT>B</COMPONENT>
<COMPONENT>C</COMPONENT>
<COMPONENT>D</COMPONENT>
<COMPONENT>E</COMPONENT>
<COMPONENT>F</COMPONENT>
<COMPONENT>G</COMPONENT>
<COMPONENT>H</COMPONENT>
<COMPONENT>I</COMPONENT>
<COMPONENT>J</COMPONENT>
<COMPONENT>K</COMPONENT>
</COMPONENTS>
</TASK>
</TASKS>
and the XSL includes
<xsl:template match="TASKS/TASK/COMPONENTS">
<xsl:variable name="t-size" select="count(COMPONENT)"/>
<xsl:variable name="half" select="ceiling($t-size div 2)"/>
<TABLE>
<xsl:for-each select="COMPONENT[position() <= $half]">
<xsl:variable name="here" select="position()"/>
<TR>
<TD><xsl:value-of select="."/><xsl:value-of select="$here"/></TD>
<TD>
<xsl:choose>
<xsl:when test="../COMPONENT[$here+$half]">
<xsl:value-of select="../COMPONENT[$here+$half]"/>
</xsl:when>
<xsl:otherwise></xsl:otherwise>
</xsl:choose>
</TD>
</TR>
</xsl:for-each>
</TABLE>
</xsl:template>
What I'm not clear about is why the 'here' variable is updatable as the
for-each iterates, it was my understanding that variable values cannot be
changed.
Could someone explain ?
Thank you.
Totalise - the Users ISP
----------------------
To become a member and a shareholder
visit http://www.totalise.net
-----------------------
"Get the latest Ericsson 2618, Nokia 6210 and Samsung M100 at our
Mobile Store, Visit www.totalisetelecom.net/store"
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list