I did the update to ConTeXt 2006-01-18 but almost regret that decision as an old problem seems to surface again. Typesetting a file that has not failed me with an august2006 version now crashes.
Relevant data from the processing log (using TeXShop):
systems : begin file syllabus-s-mpgraph-temp at line 42
....
! Undefined control sequence.
l.53 \tts 66\%\CCC
:4:126%
So what is going on here?
File syllabus-s-mpgraph-temp shows at the offending site:
\starttext
.....
\startMPXpage
\tts 66\%\CCC:4:126%
\stopMPXpage
And this code must have been come from a metapost source:
\startuseMPgraphic{taalengels}{width,height,gap}
....
label.ulft(textext("\tts 66\%~"), (bs + 27 * u, baseline + 660 * bt + dotsize/2));
Aha, I conclude, trouble with the %-sign!
But I think I have seen that error before, originating in one of the Ruby-scripts if I remember well.
Having to do with the file parsing and failing on %'s or something like that.
Hans Hagen had it fixed then with a patch on a ruby script.
Why is this problem now cropping up again?
Can this be fixed? Thanks in advance for the trouble this causes.