Re: [xsl] Counting following siblings for table spans

["David Carlisle d.p.carlisle@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

I get

row 1 cell-1 rowspan 5
row 1 cell-2 rowspan 1
row 1 cell-3 rowspan 1
row 2 cell-2 rowspan 1
row 2 cell-3 rowspan 1
row 3 cell-2 rowspan 1
row 3 cell-3 rowspan 1
row 4 cell-2 rowspan 1
row 4 cell-3 rowspan 2
row 5 cell-2 rowspan 1

from

<xsl:stylesheet version="3.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:d="data:,data">

  <xsl:template match="row/*">
    <xsl:message select="'row',1+count(../preceding-sibling::row), name(),
      'rowspan', d:span(.,1)"/>
  </xsl:template>

  <xsl:function name="d:span">
    <xsl:param name="e"/>
    <xsl:param name="n"/>
    <xsl:sequence
select="if($e/../following-sibling::*[$n]/*[name()=name($e)]) then
 $n
 else
 d:span($e,$n+1)
 "/>
  </xsl:function>

</xsl:stylesheet>


David



On Mon, 19 Jan 2026 at 19:03, Wendell Piez wapiez@xxxxxxxxxxxxxxx <
xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:

> Rick,
>
> I think your requirement can be translated directly. First -
>
> count(../following-sibling::row[empty(child::cell-1)])
>
> If you want to start the count at 1, not zero, I usually do something like
>
> count(../(. | following-sibling::row[empty(child::cell-1)] ))
>
> This includes the parent row element in the count. (Some people would just
> add 1.)
>
> However, by "immediately following" you probably mean there can be no
> cell-1 row intervening. XPath has a couple of ways to do this.
>
> For example, a similar path can be used to identify all the subsequent
> rows with a child-1, and their following siblings, then you can exclude
> those from the count. So you have two sequences:
>
> $including =  ../(. | following-sibling::row[empty(child::cell-1)] )  (:
> this row, plus following sibling rows with no cell-1 :)
> $excluding = ../following-sibling::row[exists(child::cell-1)] / (. |
> following-sibling::row)  (: following rows with cell-1, plus their
> following siblings with or without cell-1 :)
>
> count($including except $excluding) should be the count you want. (Not
> tested!)
>
> Another, perhaps more elegant and performant solution would be to use an
> XSLT accumulator, not XPath.
>
> HTH, Wendell
>
>
>
>
>
> HTH, Wendell
>
>
>
>
> On Mon, Jan 19, 2026 at 1:34b/PM rick@xxxxxxxxxxxxxx <
> xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
>> Hi All,
>>
>>
>>
>> I have table data like this:
>>
>>
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <tbl>
>>     <row>
>>         <cell-1>Throughout</cell-1>
>>         <cell-2>log book</cell-2>
>>         <cell-3>logbook</cell-3>
>>     </row>
>>     <row>
>>         <cell-2>AirVault</cell-2>
>>         <cell-3>Aircraft Records Database</cell-3>
>>     </row>
>>     <row>
>>         <cell-2>411</cell-2>
>>         <cell-3>aircraft data management</cell-3>
>>     </row>
>>     <row>
>>         <cell-2>Status Report</cell-2>
>>         <cell-3>MDR</cell-3>
>>     </row>
>>     <row>
>>         <cell-2>Removed M-Facility Directors (MFD)</cell-2>
>>     </row>
>>     <row>
>>         <cell-1>1 / 1-2</cell-1>
>>         <cell-2>All revisions will be submitted to the FAA for
>> reviewb&</cell-2>
>>         <cell-3>All revisions of this manual will be submitted to the FAA
>> for reviewb&</cell-3>
>>     </row>
>> </tbl>
>>
>> When I encounter a <cell-1> element, I need to count the immediately
>> following ../row elements that donbt have a <cell-1> child so I can
>> determine the row span value. In my example, the <cell-1> element would
>> span the following 4 rows because they donbt have <cell-1> elements. I
am
>> trying to figure out a good algorithm for doing this. Thank you.
>>
>>
>>
>> Rick
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>>
>
>
> --
> ...Wendell Piez... ...wendellpiez.com...
> ...pellucidliterature.org... ...pausepress.org... ...
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