Commit: runtime(comment): handle special chars ^$[ robustly

[Christian Brabandt]

runtime(comment): handle special chars ^$[ robustly

Commit: https://github.com/vim/vim/commit/aef2e53cf8f331a0566857ac80a89a67e0d77722
Author: Maxim Kim <hab...@gmail.com>
Date: Fri Jun 13 20:18:50 2025 +0200

runtime(comment): handle special chars ^$[ robustly

Make sure comment toggling works when 'commentstring' contains
any of the following regex special characters by escaping them:

^ $ [

closes: #17537

Signed-off-by: Maxim Kim <hab...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/pack/dist/opt/comment/autoload/comment.vim b/runtime/pack/dist/opt/comment/autoload/comment.vim
index f678a98fa..74e091c35 100644
--- a/runtime/pack/dist/opt/comment/autoload/comment.vim
+++ b/runtime/pack/dist/opt/comment/autoload/comment.vim
@@ -1,7 +1,7 @@
vim9script

# Maintainer: Maxim Kim <hab...@gmail.com>
-# Last Update: 2025-06-12
+# Last Update: 2025-06-13
#
# Toggle comments
# Usage:
@@ -19,7 +19,7 @@ export def Toggle(...args: list<string>): string
if empty(&cms) || !&ma | return '' | endif
var cms = substitute(substitute(&cms, '\S\zs%s\s*', ' %s', ''), '%s\ze\S', '%s ', '')
var [lnum1, lnum2] = [line("'["), line("']")]
- var cms_l = split(escape(cms, '*.\'), '\s*%s\s*')
+ var cms_l = split(escape(cms, '*.\^$['), '\s*%s\s*')

var first_col = indent(lnum1)
var start_col = getpos("'[")[2] - 1