On 2/17/2016 11:27 AM, Meer, Hans van der wrote:
Some code that worked ok but hasn't been used for some time, now gives
an error: missing $.
It is working fine in ConTeXt, but putting it inside an MPpage goes wrong.
That was a tricky one to nail down ... it related to the fact that have
\{ and \} have a different meaning when we flush metapost text (makes me
wonder if that is still needed)
this helps
\installmathfencepair
\letteropenbrace \Lbrace
\letterclosebrace \Rbrace
Here a minimal example, the output of the ConTeXt run and the error on
the MPpage run.
Has something changed I missed?
Hans van der Meer
The error occurs in this code, my suspect is the cases macro.
\starttext
\startsetups[dif-1]
$\displaystyle
\Delta_{in} = 1000_2 \cases{(A,2)(2,A)&\cr (6,E)(E,6)&\cr}
\buildrel S_1 \over \rightarrow \quad
\Delta_{uit} = 1011_2 \cases{(6,D)(D,6)&\cr (B,0)(0,B)&\cr}
$
\stopsetups
\startMPpage
label("\setup[dif-1]",origin);
\stopMPpage
\stoptext
tex error > tex error on line 9 in file
/Users/hansm/Documents/TeX/Test-tex/cases/cases.tex: ! Missing $ inserted
<inserted text>
$
<to be read again>
\endgroup
\math_fenced_fenced_stop ...leparameter \endgroup
\advance
\c_math_fenced_ne...
\14>:dif-1 ...ses {(A,2)(2,A)&\cr (6,E)(E,6)&\cr }
\buildrel S_1 \over
\right...
l.9 ...edfont[LMRoman-Regular*default]\setup [dif-1]
<to be read again>
\relax
...
l.12 \stopMPpage
The ConTeXt run itself is ok, see below
\starttext
\startsetups[dif-1]
$\displaystyle
\Delta_{in} = 1000_2 \cases{(A,2)(2,A)&\cr (6,E)(E,6)&\cr}
\buildrel S_1 \over \rightarrow \quad
\Delta_{uit} = 1011_2 \cases{(6,D)(D,6)&\cr (B,0)(0,B)&\cr}
$
\stopsetups
\setup[dif-1]
\stoptext
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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
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