Re: Compiling Individual Files in Multi-File Projects

[Arash Esbati]

Kourosh Kalayeh <k.kalayeh@gmail.com> writes:

> Effectively, I’d like C-c C-a to compile the subfile when working
> within a subfile, and to compile the whole document when invoked in
> the main parent file (main.tex).
>
> Is there a straightforward way to achieve this behavior in AUCTeX?

Not that I'm aware of.  You can try to convert your files using the
subfiles.sty.  From its manual:

  • If LaTeX is run on the subfile, the line
    \documentclass[..]{subfiles} is replaced by the preamble of the main
    file (including its \documentclass command). The rest of the subfile
    is processed normally.

  • If LaTeX is run on the main file, the subfile is loaded like with an
    \input command, except that the preamble of the subfile up to
    \begin{document} as well as \end{document} and the lines following
    it are ignored.

AUCTeX has support for subfiles.sty, so your workflow should work.  I
think the only catch is that you have to set `TeX-master' to t for all
files, incl. the subfiles.

Best, Arash