Re: Recursion of variable

Darn!  Another glitch.  David's code works perfectly, except when <cnt> = 1.  In this case, the output should not be a range but a single digit.  I honestly tried to fix it myself, but couldn't garner enough brain cells to figure it out:

XML:
<vector>
<r1>
<t>geometry</t>
<r2>
<t>parabola</t>
<r3>
<t>trapezium</t>
<cnt>4</cnt>
</r3>
<r3>
<t>rhombus</t>
<cnt>4</cnt>
</r3>
</r2>
<r2>
<t>parallelogram</t>
<cnt>1</cnt>
</r2>
</r1>
<r1>
<t>reflection</t>
<cnt>1</cnt>
</r1>
</vector>

Desired output:

<vector>
<r1>
<t>geometry</t>
<r2>
<t>parabola</t>
<r3>
<t>trapezium</t>
<o>1-5</o> (This is the value 1 + <cnt>, carry value 
"6" forward)
</r3>
<r3>
<t>rhombus</t>
<o>6-10</o> (This is the value 6 + <cnt>, carry value 
"11" forward)
</r3>
</r2>
<r2>
<t>parallelogram</t>
<o>11</o> (This is the value 11 carried forward, but since <cnt> = 1, don't sum, carry value "12" forward)
</r2>
</r1>
<r1>
<t>reflection</t>
<o>12</o> (This is the value 12 carried forward, same as above, don't sum)
</r1>
</vector>


-- David Carlisle <davidc@xxxxxxxxx> wrote:
<xsl:stylesheet version="1.0"
              xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:template match="*">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates/>
</xsl:copy>
</xsl:template>

<xsl:template match="cnt">
<xsl:variable name="cs" select="preceding::cnt"/>
<xsl:variable name="c" select="1+sum($cs)+count($cs)"/>
<o><xsl:value-of select="$c"/>-<xsl:value-of select="$c + ."/></o>
</xsl:template>

</xsl:stylesheet>

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