[NTG-context] Unexpected results with \xmlpos

16 Feb 2023

      Hi,

I'm getting unexpected results for \xmlpos
With the example below, I was expecting to get the following positions:
1 2 3 4
However the result is: 2 4 6 8, i.e. each time it's exactly the double.

What am I missing?

Background: I need to define column alignment based on the value of the <col> element inside the colgroup, so I was thinking about something like this :

\xmlmapvalue{colstyle}{dir: rtl}{align=righttolef }
\xmlmapvalue{colstyle}{dir: ltr}{align=lefttoright}

\startxmlsetups xml:table:colgroup:col
  \setupTABLE[c][\xmlpos{#1}][\xmlvalue{colstyle}{\xmlatt{#1}{style}}{}]
\stopxmlsetups

Best,
Denis

\startbuffer[test]
<?xml version='1.0' standalone='yes?>
<document>
<table-wrap>
                <table>
                   <colgroup>
                                 <col/>
                                 <col style="dir: rtl"/>
                                 <col style="dir: rtl"/>
                                 <col/>
                   </colgroup>
                   <thead>
                                 <tr>
                                               <th>a</th>
                                               <th>b</th>
                                               <th>c</th>
                                               <th>d</th>
                                 </tr>
                   </thead>
                   <tbody>
                                 <tr>
                                               <td>a</td>
                                               <td>b</td>
                                               <td>c</td>
                                               <td>d</td>
                                 </tr>
                   </tbody>
                </table>
</table-wrap>
</document>
\stopbuffer

\startxmlsetups xml:test
\xmlsetsetup{\xmldocument}{document}{xml:*}
\xmlsetsetup{#1}{table-wrap}{xml:table-wrap}
\xmlsetsetup{#1}{table}{xml:table}
\stopxmlsetups

\xmlregistersetup{xml:test}

\startxmlsetups xml:document
  \xmlflush{#1}
\stopxmlsetups

\startxmlsetups xml:table-wrap
                \startplacetable
                    \xmlflush{#1}
    \stopplacetable
\stopxmlsetups

\startxmlsetups xml:table:colgroup
                %\xmlvalue{colstyle}{\xmlatt{#1}{style}}{}
                \xmlfilter {#1} {/col/command(xml:table:colgroup:col)}
\stopxmlsetups

\startxmlsetups xml:table:colgroup:col
                %\xmlvalue{colstyle}{\xmlatt{#1}{style}}{}
                \xmlpos {#1}
\stopxmlsetups

\startxmlsetups xml:table
  \xmlfilter {#1} {/colgroup/command(xml:table:colgroup)}
  \bTABLE
                \xmlfilter{#1}{/thead/command(xml:table:thead)}
                \xmlfilter{#1}{/tbody/command(xml:table:tbody)}
  \eTABLE
\stopxmlsetups

\startxmlsetups xml:table:thead
                \bTABLEhead
                               \xmlfilter{#1}{/tr/command(xml:table:thead:tr)}
                \eTABLEhead
\stopxmlsetups

\startxmlsetups xml:table:thead:tr
                \bTR
                               \xmlfilter{#1}{/th/command(xml:table:thead:tr:th)}
                \eTR
\stopxmlsetups

\startxmlsetups xml:table:thead:tr:th
                \bTH
                               \xmlflush{#1}
                \eTH
\stopxmlsetups

\startxmlsetups xml:table:tbody
\bTABLEbody\xmlfilter{#1}{/tr/command(xml:table:tbody:tr)}\eTABLEbody
\stopxmlsetups

\startxmlsetups xml:table:tbody:tr
\bTR\xmlfilter{#1}{/td/command(xml:table:tbody:tr:td)}\eTR
\stopxmlsetups

\startxmlsetups xml:table:tbody:tr:td
\bTC \xmlflush{#1} \eTC
\stopxmlsetups

\starttext
  \xmlprocessbuffer{test}{test}{}
\stoptext

[NTG-context] Unexpected results with \xmlpos

denis.maier＠unibe.ch