runtime(vim): Update ftplugin, add heredocs to b:match_words

This depends on chrisbra/matchit#61 for full support of non-alphnum
heredoc markers.

closes: #20399

Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

diff --git a/runtime/ftplugin/vim.vim b/runtime/ftplugin/vim.vim
index 72a87d1802fd991757c4793fe96529a645e45fde..21ca040fa637399be9b20ef576f7c2b32bb48d80 100644 (file)
--- a/runtime/ftplugin/vim.vim
+++ b/runtime/ftplugin/vim.vim
@@ -6,13 +6,7 @@
 "                    @Konfekt
 "                    @tpope (s:Help())
 "                    @lacygoill
-" Last Change:       2025 Aug 07
-" 2025 Aug 06 by Vim Project (add gf maps #17881)
-" 2025 Aug 08 by Vim Project (add Vim script complete function #17871)
-" 2025 Aug 12 by Vim Project (improve vimgoto script #17970))
-" 2025 Aug 16 by Vim Project set com depending on Vim9 or legacy script
-" 2026 Jan 26 by Vim Project set path to common Vim directories #19219
-" 2026 Feb 03 by Vim Project update s:Help to improve detecting functions #19320
+" Last Change:       2026 May 31
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -204,15 +198,17 @@ if exists("loaded_matchit")
   \ '\<aug\%[roup]\s\+\%(END\>\)\@!\S:\<aug\%[roup]\s\+END\>,' ..
   \ '\<class\>:\<endclass\>,' ..
   \ '\<interface\>:\<endinterface\>,' ..
-  \ '\<enum\>:\<endenum\>'
+  \ '\<enum\>:\<endenum\>,' ..
+  "\ :let-heredoc
+  \ '\%(=<<\s\+\%(\%(trim\s\+eval\|eval\s\+trim\|trim\|eval\)\s\+\)\=\)\@16<=\(\l\@!\S\+\):\%(^\s*\)\@<=\1$'
 
   " Ignore syntax region commands and settings, any 'en*' would clobber
   " if-endif.
   " - set spl=de,en
   " - au! FileType javascript syntax region foldBraces start=/{/ end=/}/ …
-  " Also ignore here-doc and dictionary keys (vimVar).
+  " Also ignore heredoc content and dictionary keys (vimVar).
   let b:match_skip = 'synIDattr(synID(line("."), col("."), 1), "name")
-                    \ =~? "comment\\|string\\|vimSynReg\\|vimSet\\|vimLetHereDoc\\|vimVar"'
+                    \ =~? "comment\\|string\\|vimSynReg\\|vimSet\\|vimLetHeredoc$\\|vimVar"'
 endif
 
 let &cpo = s:cpo_save