Re: [xsl] xsltproc -maxdepth

Heinrich Nbongo heinrich_nbongo@xxxxxxxxxxx wrote:

I admit, haven't dealt with xslt for a long time. However, I bumped into
this option "xsltproc -maxdepth", and couldn't find a sufficient
information of what exactly it controls ("max. template stack depth" -
which doesn't mean nothing to me). Could any provide me with more info
of which problem is solves (ok, max nr of recursion, but recursion of
what exactly?) , and how exactly it has been solved.

Think of apply-templates as a recursive method or function call. For instance with the input being

<root>
  <section>
    <division>
      <division>
        <division>
          <division>This is a test.</division>
        </division>
      </division>
    </division>
  </section>
</root>

the stylesheet

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

<xsl:template match="root">
  <html>
    <xsl:apply-templates/>
  </html>
</xsl:template>

<xsl:template match="section">
  <body>
    <xsl:apply-templates/>
  </body>
</xsl:template>

<xsl:template match="division">
  <div>
    <xsl:apply-templates/>
  </div>
</xsl:template>

</xsl:stylesheet>

outputs

<html>
  <body>
    <div>
      <div>
        <div>
          <div>This is a test.</div>
        </div>
      </div>
    </div>
  </body>
</html>

Now when I intentionally set --maxdepth 5 xsltproc aborts the transformation with an error message

xsltApplyXSLTTemplate: A potential infinite template recursion was detected. You can adjust xsltMaxDepth (--maxdepth) in order to raise the maximum number of nested template calls and variables/par ams (currently set to 5). Templates: #0 name division #1 name division #2 name division #3 name section #4 name root

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