[NTG-context] How to get the last item from an XML node

[Taco Hoekwater]

> On 21 Sep 2020, at 18:31, Denis Maier <denis.maier.lists at mailbox.org> wrote:
> 
> Hi
> 
> struggling again: Shouldn't the code below give me the last element under <tbody>? Right now \xmlfilter{#1}{/tr/last()/command(xml:table:tbody:tr)} gives me nothing...
> 
> (Use case is that I want to have a frame above the table and one bar below. So I think I should wrap the last line in the \startxtablefoot ...\stopxtablefoot, i.e., I need one command for the last element, and one for the rest (Or is there a better way?). What would be the everything but the last?
> 
> What am I missing?

You need to read some more on the "Expressions and filters” chapter of the xml manual, as it does not work quite the way you think. Here is a quick fix:

> 
> 
> \startxmlsetups xml:table:tbody
>     \xmlfilter{#1}{/tr/last()/command(xml:table:tbody:tr)}

\xmlfilter{#1}{/tr[position()==last()]/command(xml:table:tbody:tr)}

Best wishes,
Taco