Variable: tex-main-file
tex-main-file is a customizable variable defined in tex-mode.el.gz.
Value
nil
Documentation
The main TeX source file which includes this buffer's file.
The command tex-file runs TeX on the file specified by tex-main-file(var)/tex-main-file(fun)
if the variable is non-nil.
Probably introduced at or before Emacs version 20.1.
Source Code
;; Defined in /usr/src/emacs/lisp/textmodes/tex-mode.el.gz
;;;###autoload
(defcustom tex-main-file nil
"The main TeX source file which includes this buffer's file.
The command `tex-file' runs TeX on the file specified by `tex-main-file'
if the variable is non-nil."
:type '(choice (const :tag "None" nil)
file)
:group 'tex-file)