--- a/runtime/ftplugin/man.vim
+++ b/runtime/ftplugin/man.vim
@@ -2,12 +2,14 @@
 " Language:	man
 " Maintainer:	Jason Franklin <vim@justemail.net>
 " Maintainer:	SungHyun Nam <goweol@gmail.com>
-" Last Change: 	2021 Sep 26
+" Autoload Split: Bram Moolenaar
+" Last Change: 	2022 Jun 18
 
 " To make the ":Man" command available before editing a manual page, source
 " this script from your startup vimrc file.
 
-" If 'filetype' isn't "man", we must have been called to only define ":Man".
+" If 'filetype' isn't "man", we must have been called to define ":Man" and not
+" to do the filetype plugin stuff.
 if &filetype == "man"
 
   " Only do this when not done yet for this buffer
@@ -34,8 +36,8 @@ if &filetype == "man"
     endif
     nnoremap <buffer> <Plug>ManBS :%s/.\b//g<CR>:setl nomod<CR>''
 
-    nnoremap <buffer> <silent> <c-]> :call <SID>PreGetPage(v:count)<CR>
-    nnoremap <buffer> <silent> <c-t> :call <SID>PopPage()<CR>
+    nnoremap <buffer> <silent> <c-]> :call dist#man#PreGetPage(v:count)<CR>
+    nnoremap <buffer> <silent> <c-t> :call dist#man#PopPage()<CR>
     nnoremap <buffer> <silent> q :q<CR>
 
     " Add undo commands for the maps
@@ -55,196 +57,9 @@ if &filetype == "man"
 endif
 
 if exists(":Man") != 2
-  com -nargs=+ -complete=shellcmd Man call s:GetPage(<q-mods>, <f-args>)
-  nmap <Leader>K :call <SID>PreGetPage(0)<CR>
-  nmap <Plug>ManPreGetPage :call <SID>PreGetPage(0)<CR>
-endif
-
-" Define functions only once.
-if !exists("s:man_tag_depth")
-
-let s:man_tag_depth = 0
-
-let s:man_sect_arg = ""
-let s:man_find_arg = "-w"
-try
-  if !has("win32") && $OSTYPE !~ 'cygwin\|linux' && system('uname -s') =~ "SunOS" && system('uname -r') =~ "^5"
-    let s:man_sect_arg = "-s"
-    let s:man_find_arg = "-l"
-  endif
-catch /E145:/
-  " Ignore the error in restricted mode
-endtry
-
-func s:PreGetPage(cnt)
-  if a:cnt == 0
-    let old_isk = &iskeyword
-    if &ft == 'man'
-      setl iskeyword+=(,)
-    endif
-    let str = expand("<cword>")
-    let &l:iskeyword = old_isk
-    let page = substitute(str, '(*\(\k\+\).*', '\1', '')
-    let sect = substitute(str, '\(\k\+\)(\([^()]*\)).*', '\2', '')
-    if match(sect, '^[0-9 ]\+$') == -1
-      let sect = ""
-    endif
-    if sect == page
-      let sect = ""
-    endif
-  else
-    let sect = a:cnt
-    let page = expand("<cword>")
-  endif
-  call s:GetPage('', sect, page)
-endfunc
-
-func s:GetCmdArg(sect, page)
-
-  if empty(a:sect)
-    return shellescape(a:page)
-  endif
-
-  return s:man_sect_arg . ' ' . shellescape(a:sect) . ' ' . shellescape(a:page)
-endfunc
-
-func s:FindPage(sect, page)
-  let l:cmd = printf('man %s %s', s:man_find_arg, s:GetCmdArg(a:sect, a:page))
-  call system(l:cmd)
-
-  if v:shell_error
-    return 0
-  endif
-
-  return 1
-endfunc
-
-func s:GetPage(cmdmods, ...)
-  if a:0 >= 2
-    let sect = a:1
-    let page = a:2
-  elseif a:0 >= 1
-    let sect = ""
-    let page = a:1
-  else
-    return
-  endif
-
-  " To support:	    nmap K :Man <cword>
-  if page == '<cword>'
-    let page = expand('<cword>')
-  endif
-
-  if !exists('g:ft_man_no_sect_fallback') || (g:ft_man_no_sect_fallback == 0)
-    if sect != "" && s:FindPage(sect, page) == 0
-      let sect = ""
-    endif
-  endif
-  if s:FindPage(sect, page) == 0
-    let msg = 'man.vim: no manual entry for "' . page . '"'
-    if !empty(sect)
-      let msg .= ' in section ' . sect
-    endif
-    echomsg msg
-    return
-  endif
-  exec "let s:man_tag_buf_".s:man_tag_depth." = ".bufnr("%")
-  exec "let s:man_tag_lin_".s:man_tag_depth." = ".line(".")
-  exec "let s:man_tag_col_".s:man_tag_depth." = ".col(".")
-  let s:man_tag_depth = s:man_tag_depth + 1
-
-  let open_cmd = 'edit'
-
-  " Use an existing "man" window if it exists, otherwise open a new one.
-  if &filetype != "man"
-    let thiswin = winnr()
-    exe "norm! \<C-W>b"
-    if winnr() > 1
-      exe "norm! " . thiswin . "\<C-W>w"
-      while 1
-	if &filetype == "man"
-	  break
-	endif
-	exe "norm! \<C-W>w"
-	if thiswin == winnr()
-	  break
-	endif
-      endwhile
-    endif
-    if &filetype != "man"
-      if exists("g:ft_man_open_mode")
-        if g:ft_man_open_mode == 'vert'
-	  let open_cmd = 'vsplit'
-        elseif g:ft_man_open_mode == 'tab'
-	  let open_cmd = 'tabedit'
-        else
-	  let open_cmd = 'split'
-        endif
-      else
-	let open_cmd = a:cmdmods . ' split'
-      endif
-    endif
-  endif
-
-  silent execute open_cmd . " $HOME/" . page . '.' . sect . '~'
-
-  " Avoid warning for editing the dummy file twice
-  setl buftype=nofile noswapfile
-
-  setl fdc=0 ma nofen nonu nornu
-  %delete _
-  let unsetwidth = 0
-  if empty($MANWIDTH)
-    let $MANWIDTH = winwidth(0)
-    let unsetwidth = 1
-  endif
-
-  " Ensure Vim is not recursively invoked (man-db does this) when doing ctrl-[
-  " on a man page reference by unsetting MANPAGER.
-  " Some versions of env(1) do not support the '-u' option, and in such case
-  " we set MANPAGER=cat.
-  if !exists('s:env_has_u')
-    call system('env -u x true')
-    let s:env_has_u = (v:shell_error == 0)
-  endif
-  let env_cmd = s:env_has_u ? 'env -u MANPAGER' : 'env MANPAGER=cat'
-  let env_cmd .= ' GROFF_NO_SGR=1'
-  let man_cmd = env_cmd . ' man ' . s:GetCmdArg(sect, page) . ' | col -b'
-  silent exec "r !" . man_cmd
-
-  if unsetwidth
-    let $MANWIDTH = ''
-  endif
-  " Remove blank lines from top and bottom.
-  while line('$') > 1 && getline(1) =~ '^\s*$'
-    1delete _
-  endwhile
-  while line('$') > 1 && getline('$') =~ '^\s*$'
-    $delete _
-  endwhile
-  1
-  setl ft=man nomod
-  setl bufhidden=hide
-  setl nobuflisted
-  setl noma
-endfunc
-
-func s:PopPage()
-  if s:man_tag_depth > 0
-    let s:man_tag_depth = s:man_tag_depth - 1
-    exec "let s:man_tag_buf=s:man_tag_buf_".s:man_tag_depth
-    exec "let s:man_tag_lin=s:man_tag_lin_".s:man_tag_depth
-    exec "let s:man_tag_col=s:man_tag_col_".s:man_tag_depth
-    exec s:man_tag_buf."b"
-    exec s:man_tag_lin
-    exec "norm! ".s:man_tag_col."|"
-    exec "unlet s:man_tag_buf_".s:man_tag_depth
-    exec "unlet s:man_tag_lin_".s:man_tag_depth
-    exec "unlet s:man_tag_col_".s:man_tag_depth
-    unlet s:man_tag_buf s:man_tag_lin s:man_tag_col
-  endif
-endfunc
-
+  com -nargs=+ -complete=shellcmd Man call dist#man#GetPage(<q-mods>, <f-args>)
+  nmap <Leader>K :call dist#man#PreGetPage(0)<CR>
+  nmap <Plug>ManPreGetPage :call dist#man#PreGetPage(0)<CR>
 endif
 
 let &cpo = s:cpo_save