Commit: runtime(vim): set 'comments' based on script type (legacy/Vim9)

[Christian Brabandt]

runtime(vim): set 'comments' based on script type (legacy/Vim9)

Commit: https://github.com/vim/vim/commit/b405c790046fc6758bf4a90feb6a67c2411685a0
Author: Christian Brabandt <c...@256bit.org>
Date: Sat Aug 16 17:51:40 2025 +0200

runtime(vim): set 'comments' based on script type (legacy/Vim9)

fixes: https://github.com/vim/vim/issues/18000

Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/ftplugin/vim.vim b/runtime/ftplugin/vim.vim
index 22b261465..00b4332fa 100644
--- a/runtime/ftplugin/vim.vim
+++ b/runtime/ftplugin/vim.vim
@@ -10,6 +10,7 @@
" 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

" Only do this when not done yet for this buffer
if exists("b:did_ftplugin")
@@ -110,14 +111,14 @@ setlocal keywordprg=:VimKeywordPrg
" Comments starts with # in Vim9 script. We have to guess which one to use.
if "
" .. getline(1, 32)->join("
") =~# '
\s*vim9\%[script]\>'
setlocal commentstring=#\ %s
+ " Set 'comments' to format dashed lists in comments, for Vim9 script.
+ setlocal com=sO:#\ -,mO:#\ \ ,eO:##,:#\\ ,:#
else
setlocal commentstring=\"%s
+ " Set 'comments' to format dashed lists in comments, for legacy Vim script.
+ setlocal com=sO:\"\ -,mO:\"\ \ ,eO:\"\",:\"\\ ,:\"
endif

-" Set 'comments' to format dashed lists in comments, both in Vim9 and legacy
-" script.
-setlocal com=sO:#\ -,mO:#\ \ ,eO:##,:#\\ ,:#,sO:\"\ -,mO:\"\ \ ,eO:\"\",:\"\\ ,:\"
-
" set 'include' to recognize import commands
setlocal include=\v^\s*import\s*(autoload)?