XML processing & columns & (almost) empty pages (?)

XML processing & columns & (almost) empty pages (?)

[Procházka Lukáš Ing. - Pontex s. r. o.]

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Hello,

I'm processing a XML (.x18) with Ctx.

At one place, I'm getting almost empty page (see pg. 6, "19 Svisle vedeni L56.2") - there is a subsection on the top of the page and a quite short two-column environment on the next page (why?);
in preceding and following pages (which are principally the same) headings and column-environments are printed correctly each after another.

I attached all files needed and I hope .x18 is minimized enough.

(The original .x18 was several times bigger - I stripped unused data still to be able to reproduce the behavior.)

How to avoid emptiness between the subsection and the following column environment on pg. 6?

TIA.

Best regards,

Lukas


-- 
Ing. Lukáš Procházka | mailto:LPr@pontex.cz
Pontex s. r. o.      | mailto:pontex@pontex.cz | http://www.pontex.cz
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147 14 Praha 4

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% nofruns=1

\startxmlsetups xml:TM18
  %\xmlsetsetup{\xmldocument}{*}{+}
  \xmlsetsetup{\xmldocument}{GEOMETRIE_xz}{xml:*}
\stopxmlsetups

\startxmlsetups xml:GEOMETRIE_xz
  \subsubsection{Svisle vedeni \wordright{\xmlfilter{#1}{parent::[tag() == 'KABEL']/attribute('nazev')}}}
    \startcolumns[n=2,rule=on,balance=yes]
      \xmlflush{#1}
    \stopcolumns
\stopxmlsetups

%

\xmlregistersetup{xml:TM18}

%

\setupbodyfont[9pt]

%

\starttext
  \xmlprocessfile{id}{t4.x18}{}
\stoptext

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