lua, footnotes, interaction

* lua, footnotes, interaction
@ 2010-04-16 21:10 Philipp Gesang
  2010-04-17  6:27 ` Peter Münster
  2010-04-17  6:52 ` Peter Münster
  0 siblings, 2 replies; 6+ messages in thread
From: Philipp Gesang @ 2010-04-16 21:10 UTC (permalink / raw)
  To: ntg-context

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Good evening all,

interaction remains a mystery to me.  When tracking things I encountered
the following deviation in footnotes:

---8<--------------------------------------------------------------------------

\startluacode
track = {}
track.preceding = ""

function track.simple(arg)
    context("Last one:\\ {\\bf " .. track.preceding .. "}.\\ " .. 
            "This one:\\ {\\bf " .. arg .. "}")
    if arg == track.preceding then
      context("\\ -- matching!")
    else
      context("\\ -- not matching!")
      track.preceding = arg
    end
end
\stopluacode

\def\track#1{\ctxlua{track.simple("#1")}}
\def\foottrack#1{\footnote{\ctxlua{track.simple("#1")}}}

\starttext

\section{Normal}
\track{one}\par
\track{two}\par
\track{two}\par
\track{one}\par
\track{one}\par
\track{two}\par
\track{one}\par

\section{In Footnotes}
\foottrack{one}
\foottrack{two}
\foottrack{two}
\foottrack{one}
\foottrack{one}
\foottrack{two}
\foottrack{one}

\setupinteraction[state=start]
\section{In Footnotes, interaction enabled}
\footnote{\hrule}
\foottrack{one}
\foottrack{two}
\foottrack{two}
\foottrack{one}
\foottrack{one}
\foottrack{two}
\foottrack{one}

\stoptext

%   vim:ft=context
---8<--------------------------------------------------------------------------

I'd naively expect \track#1 to behave identically regardless of
interaction.  How do I make it interaction-proof, and, if possible,
how do I interaction-proof macros in general?

Thanks for your efforts,

Philipp

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