[AUCTeX] Lua commands in TeX-buffers: highlighting by using indirect buffers?

[AW]

Hi everybody,

as LuaTeX probably will become the successor to pdfTeX, I guess, adapting 
AUCTeX to this is a must. The most important feature is syntax highlighting of 
both, LaTeX and Lua, in one or another way, when both are employed in the same 
file. More and more people will use Lua snippets in *.tex-files. 

I'm aware of the fact that the question, whether a two-mode-buffer makes 
sense, has been discussed before, see here: 
http://www.mail-archive.com/address@hidden/msg03572.html

For a start, would it be possible to make syntax highlighting in indirect 
buffers possible? It does not work with LaTeX-buffers (C-x 4 c RET M-x lua-
mode RET), the highlighting did not change. Starting the other way round -- 
open a *.tex-file, change mode to lua-mode, then create indirect buffer and 
change there to latex-mode -- left me with a mixture of highlighting (23.3 + 
11.86).

I'd appreciate any other solution. If I can contribute something, I'd be glad.

Regards,
Alexander