feat(syntax): highlight a syntax error

refer: #2960
lervag · Jun 1, 2024 · cf259f4 · cf259f4
1 parent 9665df7
commit cf259f4
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diff --git a/autoload/vimtex/syntax/core.vim b/autoload/vimtex/syntax/core.vim
@@ -67,6 +67,8 @@ function! vimtex#syntax#core#init_rules() abort " {{{1
   syntax match texSpecialChar "\\[SP@]\ze[^a-zA-Z@]"
   syntax match texSpecialChar "\^\^\%(\S\|[0-9a-f]\{2}\)"
 
+  syntax match texError "[_^]"
+
   " }}}2
   " {{{2 Commands: general
 

diff --git a/test/test-syntax/test-core.tex b/test/test-syntax/test-core.tex
@@ -40,7 +40,7 @@
 
 \begin{document}
 
-Test accents \v! and \v@ here.
+Test accents \v! and \v@ here. And errors: _ ^
 
 Line with inline verbatim: \verb+verb+
 Line with inline verbatim: \verb*+verb+