patch: adding alertenv (and other friends) for beamer layout

[José Matos]

On Sun, 2022-11-06 at 10:20 -0500, Scott Kostyshak wrote:
> And also every time I come across something like this, I wonder if we
> can generalize the process of converting a new layout to ERT for
> older formats. i.e., I just want to put a one-liner with "alertenv",
> and I want lyx2lyx to talk to LyX and say "hey you're good at
> outputting LaTeX, can you convert this inset to ERT for me please?"
> That's trickier than it seems though, and I'm not even sure if there
> would be agreement to have lyx2lyx depend on the LyX binary anyway.

This is an academic discussion at this time of the development, and I
still need to complete a work to given to my students tomorrow. :-)

I suspect that the issue is to have lyx2lyx to talk with tex2lyx and
not necessarily to the lyx binary.

To complicate matters further, the issue is to determine what is the
right context to pass, just the ERT or more, and if this should at sup-
paragraph or at paragraph level.

-- 
José Abílio