This is the mail archive of the
xsl-list@mulberrytech.com
mailing list .
strings and recursive templates
- From: "Andrew Welch" <awelch at piper-group dot com>
- To: <xsl-list at lists dot mulberrytech dot com>
- Date: Fri, 19 Jul 2002 12:09:13 +0100
- Subject: [xsl] strings and recursive templates
- Reply-to: xsl-list at lists dot mulberrytech dot com
I would have thought the following templates should produce the same
result, one uses choose/when, one uses if, however the value-of at the
end of template t2 seems to keep track of the whole string... if I step
through the code the debugger stays on that line the number of times the
template has been recursively called - which is a bit strange...
Using this data:
<node>1 | 2 | 3 | 4 | 5</node>
I would expect this result:
1 2 3 4 5
which is what t1 gives me, whereas t2 produces:
1 2 3 4 5 4 | 5 3 | 4 | 5 2 | 3 | 4 | 51 | 2 | 3 | 4 | 5
why is this? saxon and msxml4 both produce the same so Im guessing its a
gap in my understanding rather than a processor issue...
<xsl:template name="t1">
<xsl:param name="string" select="''"/>
<xsl:choose>
<xsl:when test="contains($string,'|')">
<xsl:value-of select="substring-before($string,'|')"/>
<xsl:call-template name="t1">
<xsl:with-param name="string"
select="substring-after($string,'|')"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$string"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="t2">
<xsl:param name="string" select="''"/>
<xsl:if test="contains($string,'|')">
<xsl:value-of select="substring-before($string,'|')"/>
<xsl:call-template name="t2">
<xsl:with-param name="string"
select="substring-after($string,'|')"/>
</xsl:call-template>
</xsl:if>
<xsl:value-of select="$string"/>
</xsl:template>
cheers
andrew
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.373 / Virus Database: 208 - Release Date: 01/07/2002
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list