Re: Math blocks with specified environment [generic directives / attributes]

[John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org>]

You can use the raw_attribute extension (enabled by default)
to put anything you like in a raw latex inline:

`\begin{align}
x^2
\end{align}`{=latex}

Note: the line endings may not be preserved, but that
shouldn't matter for latex in most cases.

Gabriel Nützi <gnuetzi-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> *Hi all,
> *
> I am transfering to 2.11.0.4 in 
> https://github.com/gabyx/TechnicalMarkdown and have some question
> regarding *Latex Math Blocks*.
>
> *Target:* Latex and HTML output
> *
> **Question:* How to write clean math blocks with specified math 
> environement which correctly merges with preceeding Paragraphs (in the 
> AST).
> I am thinking of a nice attribute solution or something...
>
> I basically want the output of:
>
> ```markdown
> Paragraph, the next mathblock should merge into this paragraph
> $$
> \begin{align}
> x^2
> \end{align}
> $$
> ```
>
> but I dont want to use a Math(mathtype=display) because I want excatly 
> to control the math environement. The above does not work because 
> `\begin{align}`
>
> *My approach**:*
> ```markdown
> Paragraph, the next mathblock should merge into this paragraph
> ~~~math
> \begin{align}
> x^2 \\
> y^2
> \end{align}
> ~~~
> ```
>
> I used a filter to Transform 
> <https://github.com/gabyx/TechnicalMarkdown/blob/master/convert/pandoc/filters/transformMath.py>the 
> mathematical `CodeBlock`  into a `Para(RawInline(tex, ...))`.
> Unfortunately I didn't think about the fact, that a new Para or other 
> Block element introduces a hard break, and does not merge with a
> `SoftBreak` into the preceeeding `Para`graph. Of course that can be 
> handled somehow ridiculously in a filter by merging precceding 
> paragraphs etc. -> cumbersome -> error prone...
>
> *Working solution with +raw_tex Extensions:*
> ```markdown
> Paragraph, the next mathblock should merge into this paragraph
> \begin{align}
> x^2 \\
> y^2
> \end{align}
> ```
>
> But is there a nicer solution?
> Is there an *inline block* element which I can tag with an attribute 
> which I can further process in a filter?
>
> Would something like that work with bracketed_spans ?:
> ```markdown
> Paragraph, this paragraph should not end here after this newline>
> [
> x^2 \\
> y^2
> ]{math}
> ```
>
> Any help widely appreciated.
>
> *BR Gabriel*
>
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