Update .vimrc: for bookworm, fix clipboard, fix markdown slow

profile/rda/.vimrc

@@ -168,6 +168,8 @@ autocmd BufWinLeave * call clearmatches()
 " --- airline statusbar ---{{{
 set laststatus=2
 let g:airline_theme='simple'
+" https://github.com/vim-airline/vim-airline/wiki/FAQ#the-powerline-font-symbols-are-not-showing-up
+let g:airline_powerline_fonts = 1
 
 " --- airline powerline fonts (disabled) ---{{{
 "" enable eye candy
@@ -241,42 +243,42 @@ silent! packadd gnupg
 "au filetype markdown set conceallevel=2     "conceal markdown commands (broke in jammy)
 au filetype markdown set wrap               "wrap lines
 
-au filetype markdown syntax match Comment /%%.*/
-au filetype markdown syntax match RedTodo /TODO/
-
 let g:markdown_folding = 1
 au filetype markdown setlocal foldlevel=1
 
 let g:markdown_fenced_languages = ['ruby', 'perl', 'bash=sh', 'sh', 'vim', 'html', 'javascript', 'css', 'python', 'yaml']
 let g:markdown_minlines = 100       "synchronize syntax highlighting with more lines (default:50)
 
+"au filetype markdown syntax match Comment /%%.*/
+"au filetype markdown syntax match RedTodo /TODO/
+
 ""Enable concealing of links (https://github.com/tpope/vim-markdown/pull/9/commits/44dec444c959fa57c2fc835980ad15dbbbf11d1c)
 "au filetype markdown syn region markdownLinkText matchgroup=markdownLinkTextDelimiter start="!\=\[\%(\_[^]]*]\%( \=[[(]\)\)\@=" end="\]\%( \=[[(]\)\@=" keepend nextgroup=markdownLink,markdownId skipwhite contains=@markdownInline,markdownLineStart concealends
 "au filetype markdown syn region markdownLink matchgroup=markdownLinkDelimiter start="(" end=")" contains=markdownUrl keepend contained conceal
 "au filetype markdown syn region markdownId matchgroup=markdownIdDelimiter start="\s*\[" end="\]" keepend contained conceal
 "au filetype markdown syn region markdownAutomaticLink matchgroup=markdownUrlDelimiter start="<\%(\w\+:\|[[:alnum:]_+-]\+@\)\@=" end=">" keepend oneline concealends
 
-"Custom markdown folding
-au filetype markdown setlocal foldexpr=MyMarkdownFold()
-au filetype markdown setlocal foldmethod=expr
-au filetype markdown setlocal foldlevel=1
-function! MyMarkdownFold()
-    let line = getline(v:lnum)
-    " regular headers
-    let depth = match(line, '\(^##\+\)\@<=\( .*$\)\@=')
-    if depth > 0
-        return ">" . depth
-    endif
-    " setext headers
-    let nextline = getline(v:lnum + 1)
-    if (line =~ '^.\+$') && (nextline =~ '^=\+$')
-        return ">1"
-    endif
-    if (line =~ '^.\+$') && (nextline =~ '^-\+$')
-        return ">2"
-    endif
-    return "="
-endfunction
+"Custom markdown folding (disabled because insanely slows down typing)
+"au filetype markdown setlocal foldexpr=MyMarkdownFold()
+"au filetype markdown setlocal foldmethod=expr
+"au filetype markdown setlocal foldlevel=1
+"function! MyMarkdownFold()
+"    let line = getline(v:lnum)
+"    " regular headers
+"    let depth = match(line, '\(^##\+\)\@<=\( .*$\)\@=')
+"    if depth > 0
+"        return ">" . depth
+"    endif
+"    " setext headers
+"    let nextline = getline(v:lnum + 1)
+"    if (line =~ '^.\+$') && (nextline =~ '^=\+$')
+"        return ">1"
+"    endif
+"    if (line =~ '^.\+$') && (nextline =~ '^-\+$')
+"        return ">2"
+"    endif
+"    return "="
+"endfunction
 "}}}
 
 " --- ansible ---{{{