#fillins in EPUB

[David Austin]

After running the sample article through the EPUB conversion, I noticed that #fillin elements do not appear to render properly though I'm not sure what the intended behavior should be.

David

[Rob Beezer]

Thanks, David. Can't recall if I've seen that one. I've only been making EPUB
of the sample article regularly for a little while now. And the EPUB validator
won't see this problem.

We define some XML elements allowed inside math. Generally, i've resisted that.
But I love that we can use #xref inside math, so I need to hold my tongue.

A #fillin inside #m is realized by the \fillinmath macro. And it is not being
defined for the "offline" process that has MathJax making SVG versions of the
math bits. So I know what to do, it appears.

Rob

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[Rob Beezer]

Fixed now, and picked up an \sfrac macro that would have had similar problems.

See: https://github.com/PreTeXtBook/pretext/pull/2833

Thanks again!

On 4/12/26 19:29, Rob Beezer wrote:
> Thanks, David.  Can't recall if I've seen that one.  I've only been making EPUB
> of the sample article regularly for a little while now.  And the EPUB validator
> won't see this problem.
>
> We define some XML elements allowed inside math.  Generally, i've resisted that.
>  But I love that we can use #xref inside math, so I need to hold my tongue.
>
> A #fillin inside #m is realized by the  \fillinmath  macro.  And it is not being
> defined for the "offline" process that has MathJax making SVG versions of the
> math bits.  So I know what to do, it appears.
>
> Rob
>
> On 4/12/26 15:52, David Austin wrote: