Are you using the latest pandoc release?

Here's a recent commit in texmath that may affect this:

commit 5b337e57b80831b624f52dd250ab5d612ee94b88

Author: John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org>

Date:   Sat May 6 10:31:42 2023 -0700


    Remove escaping of spaces inside \text{}.

    

    It isn't needed, and it causes problems in MathJax rendering.




On Apr 11, 2023, at 11:12 PM, Bernard Schleich <bernard.schleich-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

I'm trying to convert a big mathematical article (32 pages) with a lot of mathematical expressions from docx to wikimedia.

When, from Wikipedia Sandbox, I incorporate wikimedia file generated by pandoc, the following line are refused by Wikipedia

<image_2023-04-12_081228333.png>
{| class="wikitable"
|-
! 1)
! <math display="block">S_{m} = \int_{0}^{a}{\varepsilon^{m}\text{\ }\psi(\varepsilon)}\text{\ }\text{d}\varepsilon</math>
|}


after replacing \text{\ } by or ~, the formula is accepted !

This error occurs also when text is containing space as in following exemple

{| class="wikitable"
|-
! 9)
! <math display="block">\varphi(\sigma_{1})_{2}\delta_{1} = \{\begin{matrix}
\frac{4\sigma_{1}}{a^{2}}\delta_{1} & \text{für\ }2\sigma_{1} < a \\
\frac{4(a - \sigma_{1})}{a^{2}}\delta_{1} & \text{für\ }2\sigma_{1} > a \\
\end{matrix}</math>
|}


After having replacing \text{für\ } by \text{für}~, the formula is accepted !

I know that error is detected in Wikipedia, but I ask my question to Pandoc because Wikipedia is first to use wikimedia ! 

Is that a bug ?

Is there a parameter that I can use and that avoid to write in \text{...} Latex expression ?

Thanks for any help !


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