1 files changed, 58 insertions, 0 deletions
diff --git a/runtime/pack/dist/opt/comment/autoload/comment.vim b/runtime/pack/dist/opt/comment/autoload/comment.vim
new file mode 100644
index 0000000..9dda266
--- /dev/null
+++ b/runtime/pack/dist/opt/comment/autoload/comment.vim
@@ -0,0 +1,58 @@
+vim9script
+
+# Maintainer: Maxim Kim <habamax@gmail.com>
+# Last Update: 2024-04-26
+#
+# Toggle comments
+# Usage:
+#   Add following mappings to vimrc:
+#       import autoload 'dist/comment.vim'
+#       nnoremap <silent> <expr> gc comment.Toggle()
+#       xnoremap <silent> <expr> gc comment.Toggle()
+#       nnoremap <silent> <expr> gcc comment.Toggle() .. '_'
+export def Toggle(...args: list<string>): string
+    if len(args) == 0
+        &opfunc = matchstr(expand('<stack>'), '[^. ]*\ze[')
+        return 'g@'
+    endif
+    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*')
+    if len(cms_l) == 0 | return '' | endif
+    if len(cms_l) == 1 | call add(cms_l, '') | endif
+    var comment = 0
+    var indent_min = indent(lnum1)
+    var indent_start = matchstr(getline(lnum1), '^\s*')
+    for lnum in range(lnum1, lnum2)
+        if getline(lnum) =~ '^\s*$' | continue | endif
+        if indent_min > indent(lnum)
+            indent_min = indent(lnum)
+            indent_start = matchstr(getline(lnum), '^\s*')
+        endif
+        if getline(lnum) !~ $'^\s*{cms_l[0]}.*{cms_l[1]}$'
+            comment = 1
+        endif
+    endfor
+    var lines = []
+    var line = ''
+    for lnum in range(lnum1, lnum2)
+        if getline(lnum) =~ '^\s*$'
+            line = getline(lnum)
+        elseif comment
+            if exists("g:comment_first_col") || exists("b:comment_first_col")
+                # handle % with substitute
+                line = printf(substitute(cms, '%s\@!', '%%', 'g'), getline(lnum))
+            else
+                # handle % with substitute
+                line = printf(indent_start .. substitute(cms, '%s\@!', '%%', 'g'),
+                        strpart(getline(lnum), strlen(indent_start)))
+            endif
+        else
+            line = substitute(getline(lnum), $'^\s*\zs{cms_l[0]} \?\| \?{cms_l[1]}$', '', 'g')
+        endif
+        add(lines, line)
+    endfor
+    noautocmd keepjumps setline(lnum1, lines)
+    return ''
+enddef