Re: [xsl] Define internal xsl variable

[Michael Kay <mike@xxxxxxxxxxxx>]

Try sibling recursion:

<xsl:template match="t:cell">
<xsl:param name="start" as="xs:integer" select="1"/>
<t:data><xsl:value-of select="$start to ($start + ((@span, 1)[1]) - 
1)"/></t:data>
<xsl:apply-templates select="following-sibling::t:cell[1]"/>
</xsl:template>

then

<xsl:apply-templates select="$origin/t:cell[1]"/>

To make this work the t:cell elements have to be siblings, so change the 
variable to:

    <xsl:variable name="origin" as="element(t:cells)">
      <t:cells>
        <t:cell>foo</t:cell>
       <t:cell span="2">bar</t:cell>
       <t:cell span="3">baz</t:cell>
       <t:cell>test</t:cell>
      </t:cells>
    </xsl:variable>



Not tested.

Michael Kay
Saxonica

On 05/10/2011 09:01, Susanne Wunsch wrote:
> Hello,
>
> I'm Susanne and did already some xsl transformations before. For now I try
> to define an internal xsl variable but the xpath expression doesn't work
> so far.
>
> (The current xsl approach is shown below.)
>
> The 'origin' variable should be mapped into the following node set (in the
> 'spannedCells' variable):
>
> <t:data>1</t:data>
> <t:data>2 3</t:data>
> <t:data>4 5 6</t:data>
> <t:data>7</t:data>
>
> It shows occupied cells including the "spanned" ones. I think that some
> recursive design should be possible but I just didn't find how to start in
> this case.
>
> I would be very glad about any hint.
>
> Full xsl file follows:
> -------------------------------------------------------------------------
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
>    xmlns:xs="http://www.w3.org/2001/XMLSchema";
>    xmlns:t="http://www.example.org/test";
>    version="2.0">
>
>    <xsl:template name="main">
>      <xsl:variable name="origin" as="node()*">
>         <t:cell>foo</t:cell>
>         <t:cell span="2">bar</t:cell>
>         <t:cell span="3">baz</t:cell>
>         <t:cell>test</t:cell>
>      </xsl:variable>
>
>      <xsl:variable name="SpannedCells" as="node()*">
>         <t:data>1</t:data>
>         <xsl:for-each select="$origin[position()>  1]">
>           <xsl:variable name="PreviousValue"
>             select="xs:integer(max(preceding::t:data/text()))"/>
>           <xsl:variable name="MaxValue"
>             select="if (./@span) then ($PreviousValue + 1 + @span)
>             else ($PreviousValue + 1)"/>
>           <t:data>
>             <xsl:value-of select="($PreviousValue + 1) to $MaxValue"/>
>           </t:data>
>         </xsl:for-each>
>       </xsl:variable>
>
>       <xsl:message select="$SpannedCells"/>
>    </xsl:template>
> </xsl:stylesheet>
> ------------------------------------------------------------------------
>
> Thanks and kind regards...
> Susanne