# Magic comment to specify root document in plain MikTeX [closed]

I'm aware that some LaTeX editors provide some "magic comments" to indentify the root document from within a child file \inlude{}-ed in the root.

Examples are the % !TEX root = <rootfile> comments of Atom LaTeX and Texstudio.

Since I prefer not to use a IDE, is there package or feature in MikTeX that mimics these magic comments?

Some context: I my editor (Notepad++) I can bind custom commands to shortcuts. Currently I have two of those: the first runs latexmk main.tex to compile the main file and I use it whenever editing the main file or its chapter subfiles. The second command runs latexmk <current-file> and I use it to compile TikZ source files into PDFs which I later include in my main file.

I would prefer to get rid of the first shortcut and simply run latexmk <current-file> on either file and have latex figure out wether to compile the file directly or redirect to the root file.

## closed as unclear what you're asking by schtandard, Phelype Oleinik, Mensch, siracusa, Stefan PinnowJul 24 at 3:28

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

• your question isn't very clear miktex is a distribution of tex-related programs but the comment syntax has to be understood by whatever you use to launch tex, either your editor or a tool such as arara , if you are simply calling tex from the commandline there isn't really anything needed as you just specify the root document to the tex command. – David Carlisle Jan 13 '18 at 14:13
• Welcome to TeX.Stackexchange! – user36296 Jan 13 '18 at 14:16
• True, but since there already is a kind of magic comment to specify a precompiled preamble file in MikTeX pdflatex, I was wondering wether there are more.. – Arne Jan 13 '18 at 14:17
• you mean a line starting with & to specify a format? Your question would be clearer if you described the interaction you have in mind. If you are just typing pdflatex myfile in a command window then tex will process myfile and there isn't really anywhere to specify anything different, or any need to do so? – David Carlisle Jan 13 '18 at 14:21
• I usually have a Makefile in the project root (where the root document lies) and open the editor (VIM) so it has that folder as the working directory. I start compilation with :!make (or a shortcut to that), so no matter which file I'm working on, the correct one is processed. But since you're using MikTeX I guess your on MS Windoof, which would require you to install some stuff to use a similar approach (namely a GNU make). – Skillmon Jan 13 '18 at 15:10