Change latex provider to luatex, closes #476

autoload/vimtex/syntax/p/cleveref.vim

@@ -0,0 +1,44 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'latex') == -1
+
+" vimtex - LaTeX plugin for Vim
+"
+" Maintainer: Karl Yngve Lervåg
+" Email:      karl.yngve@gmail.com
+"
+
+function! vimtex#syntax#p#cleveref#load() abort " {{{1
+  if has_key(b:vimtex_syntax, 'cleveref') | return | endif
+  let b:vimtex_syntax.cleveref = 1
+  if get(g:, 'tex_fast', 'r') !~# 'r' | return | endif
+
+  syntax match texStatement '\\\(\(label\)\?c\(page\)\?\|C\|auto\)ref\>'
+        \ nextgroup=texCRefZone
+
+  " \crefrange, \cpagerefrange (these commands expect two arguments)
+  syntax match texStatement '\\c\(page\)\?refrange\>'
+        \ nextgroup=texCRefZoneRange skipwhite skipnl
+
+  " \label[xxx]{asd}
+  syntax match texStatement '\\label\[.\{-}\]'
+        \ nextgroup=texCRefZone skipwhite skipnl
+        \ contains=texCRefLabelOpts
+
+  syntax region texCRefZone contained matchgroup=Delimiter
+        \ start="{" end="}"
+        \ contains=@texRefGroup,texRefZone
+  syntax region texCRefZoneRange contained matchgroup=Delimiter
+        \ start="{" end="}"
+        \ contains=@texRefGroup,texRefZone
+        \ nextgroup=texCRefZone skipwhite skipnl
+  syntax region texCRefLabelOpts contained matchgroup=Delimiter
+        \ start='\[' end=']'
+        \ contains=@texRefGroup,texRefZone
+
+  highlight link texCRefZone      texRefZone
+  highlight link texCRefZoneRange texRefZone
+  highlight link texCRefLabelOpts texCmdArgs
+endfunction
+
+" }}}1
+
+endif