Re: Number of times apply-templates gets executed.

  1. I believe its not possible to change the value of <xsl:variable> once its
  set - correct?

that's correct, although if the variable is declared with xsl:param then
you can of course call it with different values if the template is
re-executed.


  2. Is there a way to figure out how many times a template was applied when
  using <xsl:apply-templates>?

 Depending on what you mean the answer may be "no", or "its always 1"
 I suspect the answer is "no". In simple cases, you can use count. For
 example if you have a template that matches foo and no other template
 matches that element then apply-templates will activate the template
 <xsl:value-of select="count(foo)"/> times but if you mean can you 
 query which templates match according to the priority and import
 precedence rules the answer is no, but why do you want this?


  3. Is there an easy to implement a counter or a boolean in xsl? If yes then
  how? Implementing either one would be fine.

 It depends what you mean by a counter, xsl:number does many of the jobs
that involve counting. Or you can have a recursive template that
iterates over some set of nodes, incrementing a parameter each time.

Boolean is a primitive data type in Xpath so yes you can have booleans,
<xsl:variable name="x" select="1 &gt; abc"/>
is a boolean valued variable with value true or false depending on
the numeric value of the <abc> element child of the current node.

David

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