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RE: [xsl] Recursively looping through a template only X number of times?

2006-11-28 15:08:20
The problem appears to be that xsl:with-param can not be a child of
xsl:template, so I can't call the template recursively while changing
the param value.

It's true that xsl:with-param cannot be a child of xsl:template, but
that's not the point: to use recursion you need to call the template
from within itself, using xsl:call-template.  Brief example:

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
  version="1.0">
<xsl:output method="html"/>

<xsl:template match="/">
  <xsl:call-template name="xyzTemp">
    <xsl:with-param name="counter" select="1"/>
  </xsl:call-template>
</xsl:template>

<xsl:template name="xyzTemp">
  <xsl:param name="counter"/>
  This is line <xsl:value-of select="$counter"/>.<xsl:value-of
select="'%
  <xsl:if test="$counter &lt; 10">
    <xsl:call-template name="xyzTemp">
      <xsl:with-param name="counter" select="$counter + 1"/>
    </xsl:call-template>
  </xsl:if>
</xsl:template>

</xsl:stylesheet>

hth,
b.

-----Original Message-----
From: Austin, Darrel 
[mailto:Darrel(_dot_)Austin(_at_)courts(_dot_)state(_dot_)mn(_dot_)us]
Sent: Tuesday, November 28, 2006 12:17 PM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: RE: [xsl] Recursively looping through a template only X
number of
times?

You want to use template parameters. Declare xsl:param inside
the template, and use xsl:with-param to set a value on the call.

The problem appears to be that xsl:with-param can not be a child of
xsl:template, so I can't call the template recursively while changing
the param value.

Just have
<xsl:variable name="tocdepth" select="2"/>
then wrap your code in
<xsl:if test="count(ancestor::ruleItem)&lt;=$tocdepth">
.. make a toc entry...
</xsl:if>

Of course! Makes perfect sense. That works nicely.

That said, I'm still curious as to how (or if) one can create
recursive
logic that can 'count' the recursions via XSL.

-Darrel

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