fix(syntax): fixed plural cites with conceal

refer: #3212

Author: lervag

autoload/vimtex/syntax/p/biblatex.vim

@@ -23,6 +23,33 @@ function! vimtex#syntax#p#biblatex#load(cfg) abort " {{{1
   syntax match texCmdRef nextgroup=texRefOpt,texRefArg skipwhite skipnl "\\[Ppf]\?[Nn]otecite\>"
   syntax match texCmdRef nextgroup=texRefOpt,texRefArg skipwhite skipnl "\\\%(text\|block\)cquote\>\*\?"
 
+  if g:vimtex_syntax_conceal.cites
+    let l:re_concealed_cites = '\v\\%(' . join([
+          \ '%([Tt]ext|[Ss]mart|[Aa]uto)cite',
+          \ '(foot)?cite[tp]?',
+          \ '[Cc]ite%(title|author|year%(par)?|date)',
+          \ '[Pp]arencite',
+          \ '[Ppf]?[Nn]otecite',
+          \ '[Ss]upercite',
+          \ 'Cite',
+          \ 'cite%(num|text|url|field|list|name)',
+          \ 'citeal[tp]',
+          \ 'foot%(full)?cite%(text)?',
+          \ 'footcite',
+          \ 'fullcite',
+          \ ], '|') . ')>\*?'
+
+    if g:vimtex_syntax_conceal_cites.type ==# 'brackets'
+      execute 'syntax match texCmdRefConcealed'
+            \ '"' . l:re_concealed_cites . '"'
+            \ 'conceal skipwhite nextgroup=texRefConcealedOpt1,texRefConcealedArg'
+    elseif !empty(g:vimtex_syntax_conceal_cites.icon)
+      execute 'syntax match texCmdRefConcealed'
+            \ '"' . l:re_concealed_cites . '%(\[[^]]*\]){,2}\{[^}]*\}"'
+            \ 'conceal cchar=' . g:vimtex_syntax_conceal_cites.icon
+    endif
+  endif
+
   syntax match texCmdRef nextgroup=texRefOpts,texRefArgs skipwhite skipnl "\\[Cc]ites\>"
   syntax match texCmdRef nextgroup=texRefOpts,texRefArgs skipwhite skipnl "\\[Pp]arencites\>"
   syntax match texCmdRef nextgroup=texRefOpts,texRefArgs skipwhite skipnl "\\footcite\%(s\|texts\)\>"
@@ -37,34 +64,6 @@ function! vimtex#syntax#p#biblatex#load(cfg) abort " {{{1
 
   highlight def link texRefArgs texRefArg
   highlight def link texRefOpts texRefOpt
-
-  if !g:vimtex_syntax_conceal.cites | return | endif
-
-  let l:re_concealed_cites = '\v\\%(' . join([
-        \ '%([Tt]ext|[Ss]mart|[Aa]uto)cite[s]?',
-        \ '(foot)?cite[tp]?',
-        \ '[Aa]utocite[s]?',
-        \ '[Cc]ite%(title|author|year%(par)?|date)[s]?',
-        \ '[Pp]arencite[s]?',
-        \ '[Ppf]?[Nn]otecite',
-        \ '[Ss]upercite[s]?',
-        \ 'Cite',
-        \ 'cite%(num|text|url|field|list|name)',
-        \ 'citeal[tp]',
-        \ 'foot%(full)?cite%(text)?',
-        \ 'footcite%(s|texts)',
-        \ 'fullcite[s]?',
-        \ ], '|') . ')>\*?'
-
-  if g:vimtex_syntax_conceal_cites.type ==# 'brackets'
-    execute 'syntax match texCmdRefConcealed'
-          \ '"' . l:re_concealed_cites . '"'
-          \ 'conceal skipwhite nextgroup=texRefConcealedOpt1,texRefConcealedArg'
-  elseif !empty(g:vimtex_syntax_conceal_cites.icon)
-    execute 'syntax match texCmdRefConcealed'
-          \ '"' . l:re_concealed_cites . '%(\[[^]]*\]){,2}\{[^}]*\}"'
-          \ 'conceal cchar=' . g:vimtex_syntax_conceal_cites.icon
-  endif
 endfunction
 
 " }}}1

test/test-syntax/test-biblatex.tex

@@ -37,4 +37,6 @@
 \volcite{1}[23]{worman}
 \volcite[23]{worman}
 
+\autocites[7-9]{Hemingway1940}[3-4]{JiM2020}
+
 \end{document}