Re: align environment with commonmark

[Connor Patrick Jackson <cpjackson-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org>]

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On Sunday, March 6, 2022 at 3:56:14 PM UTC-8 Connor Patrick Jackson wrote:

> If a reprex is desired: 
>
> Contents of test.txt: 
>
> # test
>
> \begin{align*}
> f(x) &= x \\
> &= 2
> \end{align*}
>
>
> Call to pandoc: pandoc test.txt --mathml -f commonmark_x -t html5
>
> yields:
>
> <h1 id="test">test</h1>
> <p>\begin{align*} f(x) &amp;= x \ &amp;= 2 \end{align*}</p>
>
> Instead of the correct MathML that is rendered with -f markdown: 
>
> <h1 id="test">test</h1>
> <p><math display="block" xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mtable><mtr><mtd 
> columnalign="right"><mi>f</mi><mrow><mo stretchy="true" 
> form="prefix">(</mo><mi>x</mi><mo stretchy="true" 
> form="postfix">)</mo></mrow></mtd><mtd 
> columnalign="left"><mo>=</mo><mi>x</mi></mtd></mtr><mtr><mtd 
> columnalign="right"></mtd><mtd 
> columnalign="left"><mo>=</mo><mn>2</mn></mtd></mtr></mtable><annotation 
> encoding="application/x-tex">\begin{align*}
> f(x) &amp;= x \\
> &amp;= 2
> \end{align*}</annotation></semantics></math></p>
> On Sunday, March 6, 2022 at 3:53:24 PM UTC-8 Connor Patrick Jackson wrote:
>
>> I am attempting to use an align environment in a markdown file being 
>> compiled to both HTML and LaTeX. Doing so works fine with the markdown 
>> reader, but not with the commonmark_x reader, for either MathML or 
>> MathJax (the commonmark_x reader just passes it through as unaltered 
>> text). I *thought* that I had previously been able to use the 
>> commonmark_x reader to handle align environments for equation aligning, 
>> but I could be misremembering. 
>>
>> Could someone confirm for me whether this is a feature that should be 
>> working, but isn't (in which case I'll go file a bug report), or if this is 
>> yet to be implemented in the commonmark_x reader? If the latter, is this 
>> an extension that is yet to be implemented (latex_macros?), or just a 
>> feature that needs to be ported over?
>>
>> Thanks! 
>>
>> Connor
>>
>

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