On 6/27/2019 6:35 PM, Duncan Hothersall wrote:
I'm not sure this is something more general in the MathML module or if it's specific to the vertical bar in this particular context, but here is a minimal example showing that the "=0" at the end of the equation is disappearing:

there is indeed some issue, i'll look into it

\usemodule[mathml]
\starttext
\xmlprocessdata{}{<imath>
         <math xmlns='http://www.w3.org/1998/Math/MathML'>
           <mi>A</mi>
           <mfenced open="(" close=")" separators="">
             <mi>B</mi>
             <mo>|</mo>
             <mi>C</mi>
           </mfenced>
           <mo>=</mo>
           <mn>0</mn>
         </math>
       </imath>}{}
\stoptext

you can also try

            <mfenced open="(" close=")" separators="|">
              <mi>B</mi>
              <mi>C</mi>



And here is a workaround using <mtext> instead of <mo> for the vertical bar which makes the "=0" magically reappear again:

\usemodule[mathml]
\starttext
\xmlprocessdata{}{<imath>
         <math xmlns='http://www.w3.org/1998/Math/MathML'>
           <mi>A</mi>
           <mfenced open="(" close=")" separators="">
             <mi>B</mi>
             <mtext>|</mtext>
             <mi>C</mi>
           </mfenced>
           <mo>=</mo>
           <mn>0</mn>
         </math>
       </imath>}{}
\stoptext

Flagged up mainly in case it is a bigger problem than just vertical bars in this specific context.

Thanks,

Duncan


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