2

Some command sequences consisting of \ and a non-letter (,, 2) are not coloured (\& is). How to fix?

2

Maybe to signal that your macro/command would be invalid?

I'm not saying it's the right way, just what's the idea.

Vim TeX statements (part of the texCmdGroup), from $VIMRUNTIME/syntax/tex.vim:

" TeX/LaTeX keywords: {{{1
" Instead of trying to be All Knowing, I just match \..alphameric..
" Note that *.tex files may not have "@" in their \commands
if exists("g:tex_tex") || b:tex_stylish
  syn match texStatement    "\\[a-zA-Z@]\+"
else
  syn match texStatement    "\\\a\+"
  if !exists("s:tex_no_error") || !s:tex_no_error
   syn match texError       "\\\a*@[a-zA-Z@]*"
  endif
endif

In addition, recognized special chars are:

syn match texSpecialChar    "\\[$&%#{}_]"

You can add a syntax rule for the texStatement in ~/.vim/after/syntax/tex.vim: e.g. syn match texStatement "\\[0-9 ,;\\]".

| improve this answer | |
  • But it would not? \, and \3 are perfectly valid command sequence names. – Toothrot Sep 24 '15 at 20:51
  • Edited with some digging. – VanLaser Sep 24 '15 at 21:21
  • I tried but it didn’t work. I don’t think I have the file you cited. Are you using vim-latex/latex-suite? – Toothrot Sep 24 '15 at 21:43
  • 1
    No, you'l have to create the .../after/syntax/tex.vim file yourself (see for example usevim.com/2012/03/07/syntax-highlighting ) – VanLaser Sep 24 '15 at 21:48
  • Better: syn match texStatement "\\[^a-zA-Z]". – Toothrot Sep 24 '15 at 23:30

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