[NTG-context] Code Called Twice?

11 Oct 2013

      ...
...
"HEADING:THEMETITLESTYLE"
"Why"
Hi,

I noticed something unexpected with the following code:

\enabletrackers[metapost.showlog]

\startuseMPgraphic{heading:ThemeTitleStyle}
  show "HEADING:THEMETITLESTYLE";
  show \MPstring{heading:title};

  draw textext( \MPstring{heading:title} ) rotated 5
    withcolor blue;
\stopuseMPgraphic

\defineframed[ThemeTitleStyle][
  background=\useMPgraphic{ThemeTitleStyle},
]

\def\processword#1{%
  \setMPtext{heading:title}{#1}%
  \useMPgraphic{heading:ThemeTitleStyle}
}

\define[1]\ThemeChapterTitle{\applytosplitstringword\processword{#1}}
\setuphead[chapter][deeptextcommand={\ThemeChapterTitle}]

\starttext
  \startchapter[title=Why Is heading:ThemeTitleStyle Called Twice?]
  \input knuth
  \stopchapter
\stoptext

It appears as though heading:ThemeTitleStyle is being called twice:

metapost        > info:
metapost        > info:
...
...
"HEADING:THEMETITLESTYLE"
"Why"
I am trying to produce a random number that is not equal to the
previous random number. However, if the code is called twice, then I'd
have to add code to ignore one of the calls.

Any ideas why the code seems to be called twice and what can be done
to ensure that it is only called once?

Thank you!

[NTG-context] Code Called Twice?

Thangalin