[tex4ht] is this a bug in tex4ht? Bad mathchar (79119) using \sum with mathml

Nasser M. Abbasi nma at 12000.org
Thu Jan 9 13:07:39 CET 2014

There seems a problem using \sum with tex4ht. I was able to
reproduce it all the time with specific configuration. This
happened when I was trying different configurations to check
some things.

Here is MWE:

     $\sum F_{x}=m\ddot{x}$

Here is the command to produce the error

     make4ht foo.tex "nma"

here is the error

! Bad mathchar (79119).
<to be read again>
l.6 $\sum F_

Here is nma.cfg which is in the same folder as foo.tex

\Configure{PicMath}{}{}{}{ class="math" align="absmiddle"}

If mathml is removed from the above, then no error.

If mathml is now back to the .cfg, but removing the first \Configure
line inside the \begin{document} then the error goes away as well.

Only when mathml and the \Configure{$}{\PicMath}{\EndPicMath}{} is
there, will this error show up.

Using texlive 2013, on linux.

Can someone please verify this and if you think this is a bug and if
I should enter a bug report then.


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