[NTG-context] line numbers in margin from xml in context mkiv

26 Apr 2011

      All,

After being away from my project for a while I returned to find that
something that worked now no longer does. I updated the minimals on my
Mac and context is running as I would expect:

jjc% context --version
mtx-context     | main context file:
/Users/jjc/context/tex/texmf-context/tex/context/base/context.mkiv
mtx-context     | current version: 2011.04.24 15:15

But now, while running my environment.tex file against my target
TEI/xml file context complains:

! Undefined control sequence.
l.77 \defineinmargin
                     [lineNumbers] [normal]
?

My own fragile understanding of what I'm doing may well be at fault,
but perhaps something relevant has changed with the minimals?

I had an environment file that I'd arrived at by much trial and error
that renders page/line numbers encoded in the xml/TEI source in the
margins of my pdf output:

\startxmlsetups xml:pb
	\def\svopage{\xmlatt{#1}{n}.}
    \xmlflush{#1}
\stopxmlsetups

\startluacode
 function filter(lb)
   if math.mod(lb,5) == 0 then
     context.svopage()
     context(lb)
   end
 end
\stopluacode

\define[1]\MyNumber%
 {\ctxlua{filter(#1)}\endgraf}

\startxmlsetups xml:lb
	\xmldoifelse{#1}{ancestor::head[@type='diarytitle']}
		{\\}
		{\lineNumbers{\tfxx\MyNumber{\xmlatt{#1}{n}}}}
		\xmlflush{#1}
\stopxmlsetups

\defineinmargin [lineNumbers] [normal]

Any suggestions would be gratefully received.
Jon

[NTG-context] line numbers in margin from xml in context mkiv

Jon Crump