Adding syntax highlighting for latex plugin in vim

Question

I am using a package called `outlines` for LaTeX. It adds commands such as `\1` `\2` `\3` etc. They are not highlighted by default in vim. So, I created a file called `tex.vim` in my .vimrc/syntax folder, and put this in the file: ``` :syn match outline /\[1-9]/ hi link outline Label ``` This works only at the top level, not within a block. In other words, it works before my `\begin{document}`, but not between `\begin{document}` and `\end{document}`. This is pretty much useless. How can I get vim to recognize the syntax, regardless of where it appears in the document?

Accepted Answer

You need to find the syntax group or cluster defined by the Tex syntax, and use `contained containedin=...`, but in your case, there is already a syntax group for statements, it's just that it doesn't include numbers. Therefore, you can just piggyback on the existing group and only add matching for numbers:

```
:syn match texStatement /\\d/
```

Adding syntax highlighting for latex plugin in vim

Solution

Problem