Align Environment can't work with latex_envs extnesion

[shanhaiying]

The latex environments such as align,align*, aligned, split etc. can't work well in theorem, lemma etc. latex environments.

Such as
\begin{theorem} $$ \begin{aligned} f(x)&=\chi_{A_i}(x)\\ =&g(x) \end{aligned} $$ \end{theorem}

If we change code as the following:
\begin{theorem} $$ \begin{aligned} f(x)&=\chi_{ A_i}(x)\\ =&g(x) \end{aligned} $$ \end{theorem}

It works well.

[jcb91]

I don't really follow what's changed from the first code example to the second?

[jfbercher]

There is an extra whitespace.
This is linked to the _{A_i which may be interpreted as markdown emphasis. I will look at it.

[jfbercher]

I have included a quick fix in commit a7b3168 lines 143-144 (the full PR #714 is pending for now - you may just copy the two lines).

This is a bit ad-hoc for now. Actually the problem comes from the fact that latex_envs enable to mix markdown and $\LaTeX$ in environnements. Markdown was replaced in the formula, resulting in the replacement of \\ by a single \.

I have to find a better way to do that because it might subsist other issues. Have a small idea of a way to go, but it will lead to refactor many things.

[jfbercher]

This is solved in the latex_envs version provided in #746.
Issue can be closed.