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Asked: 2026-06-15T10:41:49+00:00

I am using a package called outlines for LaTeX. It adds commands such as

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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?

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1 Answer

  1. Editorial Team

    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/
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