Syntax for package "comment": \begin{env}[options] and \end{env} appear as not being commented

[kiryph]

Following LaTeX file

\documentclass{article}
\usepackage{comment} 

\begin{document}

\begin{comment}
  text text text text text text text text text text text text text 
  $a=b$
  text text text text text text text text text text text text text 
\end{comment}


\begin{comment}
  text text text text text text text text text text text text text 
  \begin{equation}
    a=b
  \end{equation}
  text text text text text text text text text text text text text 
  \begin{empheq}[box=\widefbox]{align*}
    c_1 &= a\\
    c_2 &= b\\
    c_3 &= c
  \end{empheq}
  text text text text text text text text text text text text text 
\end{comment}

\end{document}

appears in neovim 0.8.2 with vimtex installed as following

Describe the solution you'd like
Lines 15, 17, 19, and 23 should also be greyed out.

[lervag]

Thanks, I've fixed this now. It will still break on the following edge case, but I think that's ok:

\begin{comment}
  \begin{comment}
    text text text text text text text text text text text text text
  \end{comment}
  text text text text text text text text text text text text text
\end{comment}

It would probably not be impossible to fix that, but it would be much harder because I would have to find another technique entirely. And it seems very unlikely that anyone would actually do this in real life?

[kiryph]

And it seems very unlikely that anyone would actually do this in real life?

I would not do this. I could imagine that other people are doing it, but I am not one of them.
IMHO the edge case of nested comment environments is not important enough to find a completely new technique.

Thanks as always for the quick fix.

[lervag]

Hmm.. I guess it is a good rule to never assume what other people will do or not do ;)

Anyway, I'm happy to get good issues that help me keep improving VimTeX. So thanks to you for reporting!