## tex4ht - Bugs: bug #230, Bad mathchar (79119) using...

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## bug #230: Bad mathchar (79119) using htlatex+mathml with \uparrow with align from amsmath package

 Submitted by: Michal Hoftich Submitted on: Tue 16 Sep 2014 10:36:41 PM EEST Category: None Priority: 5 - Normal Severity: 5 - Normal Status: None Privacy: Public Assigned to: None Open/Closed: Open

Wed 04 Feb 2015 02:39:39 AM EET, comment #2:

current theory, per michal, is that jsml is a mathjax predecessor and there is no use in continuing to support it. we could just drop it all from the sources.

cvr, wdyt?

thanks,
k

Karl Berry <karl>
Thu 29 Jan 2015 12:59:46 AM EET, comment #1:

sorry i didn't notice this patch long before this, michal. i installed it in tex4ht and tl.

but there is a puzzlement in tex4ht-jsml.tex: at least some of the <configure jsml-math> blocks are not actually used. that is, the \mathchar that you fixed up in <configure jsml-math fontmath> does not appear in the output, so far as i can see. i noticed that the <configure jsml-math amsopn> block at the very end of the file does not appear in the output either.

problematic or intentional? if you or cvr or anyone has any ideas ...

thanks,
k

Karl Berry <karl>
Tue 16 Sep 2014 10:36:41 PM EEST, original submission:

Error reported by Nasser M. Abbasi on TeX.SX [1]

This code:

\documentclass[]{article}%
\usepackage{amsmath}
\begin{document}
$\uparrow\sum F$
\end{document}

results in error

! Bad mathchar (79119). <argument> & \uparrow \sum F
l.8 \end{align}
?

with mathml output. As pointed out by Enrico Gregorio, this is caused by passing parameters \mathchar without terminating with space or \relax. This may cause weird behavior like in Nasser's example, when \sum F results in \mathchar"1350 F and because F is proper hexadecimal number it is added. Enrico proposed solution and I've made a patch for fixing this issue.

Michal Hoftich <michal_h21>

Attached Files
file #180:  matchar.diff added by michal_h21 (3kB - text/x-patch)

Depends on the following items: None found

Items that depend on this one: None found

Carbon-Copy List
• -unavailable- added by karl (Posted a comment)
• -unavailable- added by michal_h21 (Submitted the item)
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