diff --git a/runtime/optwin.vim b/runtime/optwin.vim
new file mode 100644
index 0000000..d5f4511
--- /dev/null
+++ b/runtime/optwin.vim
@@ -0,0 +1,1193 @@
+" These commands create the option window.
+"
+" Maintainer:	Bram Moolenaar <Bram@vim.org>
+" Last Change:	2004 May 04
+
+" If there already is an option window, jump to that one.
+if bufwinnr("option-window") > 0
+  let s:thiswin = winnr()
+  while 1
+    if @% == "option-window"
+      finish
+    endif
+    exe "norm! \<C-W>w"
+    if s:thiswin == winnr()
+      break
+    endif
+  endwhile
+endif
+
+" Make sure the '<' flag is not included in 'cpoptions', otherwise <CR> would
+" not be recognized.  See ":help 'cpoptions'".
+let s:cpo_save = &cpo
+set cpo&vim
+
+" function to be called when <CR> is hit in the option-window
+fun! <SID>CR()
+
+  " If on a continued comment line, go back to the first comment line
+  let lnum = line(".")
+  let line = getline(lnum)
+  while line[0] == "\t"
+    let lnum = lnum - 1
+    let line = getline(lnum)
+  endwhile
+
+  " <CR> on a "set" line executes the option line
+  if match(line, "^ \tset ") >= 0
+
+    " For a local option: go to the previous window
+    " If this is a help window, go to the window below it
+    let thiswin = winnr()
+    let local = <SID>Find(lnum)
+    if local >= 0
+      exe line
+      call <SID>Update(lnum, line, local, thiswin)
+    endif
+
+  " <CR> on a "option" line shows help for that option
+  elseif match(line, "^[a-z]") >= 0
+    let name = substitute(line, '\([^\t]*\).*', '\1', "")
+    exe "help '" . name . "'"
+
+  " <CR> on an index line jumps to the group
+  elseif match(line, '^ \=[0-9]') >= 0
+    exe "norm! /" . line . "\<CR>zt"
+  endif
+endfun
+
+" function to be called when <Space> is hit in the option-window
+fun! <SID>Space()
+
+  let lnum = line(".")
+  let line = getline(lnum)
+
+  " <Space> on a "set" line refreshes the option line
+  if match(line, "^ \tset ") >= 0
+
+    " For a local option: go to the previous window
+    " If this is a help window, go to the window below it
+    let thiswin = winnr()
+    let local = <SID>Find(lnum)
+    if local >= 0
+      call <SID>Update(lnum, line, local, thiswin)
+    endif
+
+  endif
+endfun
+
+" find the window in which the option applies
+" returns 0 for global option, 1 for local option, -1 for error
+fun! <SID>Find(lnum)
+    if getline(a:lnum - 1) =~ "(local to"
+      let local = 1
+      let thiswin = winnr()
+      exe "norm! \<C-W>p"
+      if exists("b:current_syntax") && b:current_syntax == "help"
+	exe "norm! \<C-W>j"
+	if winnr() == thiswin
+	  exe "norm! \<C-W>j"
+	endif
+      endif
+    else
+      let local = 0
+    endif
+    if local && (winnr() == thiswin || (exists("b:current_syntax")
+	\ && b:current_syntax == "help"))
+      echo "Don't know in which window"
+      let local = -1
+    endif
+    return local
+endfun
+
+" Update a "set" line in the option window
+fun! <SID>Update(lnum, line, local, thiswin)
+  " get the new value of the option and update the option window line
+  if match(a:line, "=") >= 0
+    let name = substitute(a:line, '^ \tset \([^=]*\)=.*', '\1', "")
+  else
+    let name = substitute(a:line, '^ \tset \(no\)\=\([a-z]*\).*', '\2', "")
+  endif
+  if name == "pt" && &pt =~ "\x80"
+    let val = <SID>PTvalue()
+  else
+    exe "let val = substitute(&" . name . ', "[ \\t\\\\\"|]", "\\\\\\0", "g")'
+  endif
+  if a:local
+    exe "norm! " . a:thiswin . "\<C-W>w"
+  endif
+  if match(a:line, "=") >= 0 || (val != "0" && val != "1")
+    call setline(a:lnum, " \tset " . name . "=" . val)
+  else
+    if val
+      call setline(a:lnum, " \tset " . name . "\tno" . name)
+    else
+      call setline(a:lnum, " \tset no" . name . "\t" . name)
+    endif
+  endif
+  set nomodified
+endfun
+
+" Reset 'title' and 'icon' to make it work faster.
+let s:old_title = &title
+let s:old_icon = &icon
+let s:old_sc = &sc
+let s:old_ru = &ru
+set notitle noicon nosc noru
+
+" If the current window is a help window, try finding a non-help window.
+" Relies on syntax highlighting to be switched on.
+let s:thiswin = winnr()
+while exists("b:current_syntax") && b:current_syntax == "help"
+  exe "norm! \<C-W>w"
+  if s:thiswin == winnr()
+    break
+  endif
+endwhile
+
+" Open the window
+new option-window
+setlocal ts=15 tw=0
+
+" Insert help and a "set" command for each option.
+call append(0, '" Each "set" line shows the current value of an option (on the left).')
+call append(1, '" Hit <CR> on a "set" line to execute it.')
+call append(2, '"            A boolean option will be toggled.')
+call append(3, '"            For other options you can edit the value.')
+call append(4, '" Hit <CR> on a help line to open a help window on this option.')
+call append(5, '" Hit <CR> on an index line to jump there.')
+call append(6, '" Hit <Space> on a "set" line to refresh it.')
+
+" These functions are called often below.  Keep them fast!
+
+" Init a local binary option
+fun! <SID>BinOptionL(name)
+  exe "norm! \<C-W>p"
+  exe "let val = &" . a:name
+  exe "norm! \<C-W>p"
+  call append("$", substitute(substitute(" \tset " . val . a:name . "\t" .
+	\!val . a:name, "0", "no", ""), "1", "", ""))
+endfun
+
+" Init a global binary option
+fun! <SID>BinOptionG(name, val)
+  call append("$", substitute(substitute(" \tset " . a:val . a:name . "\t" .
+	\!a:val . a:name, "0", "no", ""), "1", "", ""))
+endfun
+
+" Init a local string option
+fun! <SID>OptionL(name)
+  exe "norm! \<C-W>p"
+  exe "let val = substitute(&" . a:name . ', "[ \\t\\\\\"|]", "\\\\\\0", "g")'
+  exe "norm! \<C-W>p"
+  call append("$", " \tset " . a:name . "=" . val)
+endfun
+
+" Init a global string option
+fun! <SID>OptionG(name, val)
+  call append("$", " \tset " . a:name . "=" . substitute(a:val, '[ \t\\"|]',
+	\ '\\\0', "g"))
+endfun
+
+let s:idx = 1
+let s:lnum = line("$")
+call append("$", "")
+
+fun! <SID>Header(text)
+  let line = s:idx . " " . a:text
+  if s:idx < 10
+    let line = " " . line
+  endif
+  call append("$", "")
+  call append("$", line)
+  call append("$", "")
+  call append(s:lnum, line)
+  let s:idx = s:idx + 1
+  let s:lnum = s:lnum + 1
+endfun
+
+" Get the value of 'pastetoggle'.  It could be a special key.
+fun! <SID>PTvalue()
+  redir @a
+  silent set pt
+  redir END
+  return substitute(@a, '[^=]*=\(.*\)', '\1', "")
+endfun
+
+" Restore the previous value of 'cpoptions' here, it's used below.
+let &cpo = s:cpo_save
+
+" List of all options, organized by function.
+" The text should be sufficient to know what the option is used for.
+
+call <SID>Header("important")
+call append("$", "compatible\tbehave very Vi compatible (not advisable)")
+call <SID>BinOptionG("cp", &cp)
+call append("$", "cpoptions\tlist of flags to specify Vi compatibility")
+call <SID>OptionG("cpo", &cpo)
+call append("$", "insertmode\tuse Insert mode as the default mode")
+call <SID>BinOptionG("im", &im)
+call append("$", "paste\tpaste mode, insert typed text literally")
+call <SID>BinOptionG("paste", &paste)
+call append("$", "pastetoggle\tkey sequence to toggle paste mode")
+if &pt =~ "\x80"
+  call append("$", " \tset pt=" . <SID>PTvalue())
+else
+  call <SID>OptionG("pt", &pt)
+endif
+call append("$", "runtimepath\tlist of directories used for runtime files and plugins")
+call <SID>OptionG("rtp", &rtp)
+call append("$", "helpfile\tname of the main help file")
+call <SID>OptionG("hf", &hf)
+
+
+call <SID>Header("moving around, searching and patterns")
+call append("$", "whichwrap\tlist of flags specifying which commands wrap to another line")
+call append("$", "\t(local to window)")
+call <SID>OptionL("ww")
+call append("$", "startofline\tmany jump commands move the cursor to the first non-blank")
+call append("$", "\tcharacter of a line")
+call <SID>BinOptionG("sol", &sol)
+call append("$", "paragraphs\tnroff macro names that separate paragraphs")
+call <SID>OptionG("para", &para)
+call append("$", "sections\tnroff macro names that separate sections")
+call <SID>OptionG("sect", &sect)
+call append("$", "path\tlist of directory names used for file searching")
+call append("$", "\t(global or local to buffer)")
+call <SID>OptionG("pa", &pa)
+call append("$", "cdpath\tlist of directory names used for :cd")
+call <SID>OptionG("cd", &cd)
+if has("netbeans_intg") || has("sun_workshop")
+  call append("$", "autochdir\tchange to directory of file in buffer")
+  call <SID>BinOptionG("acd", &acd)
+endif
+call append("$", "wrapscan\tsearch commands wrap around the end of the buffer")
+call <SID>BinOptionG("ws", &ws)
+call append("$", "incsearch\tshow match for partly typed search command")
+call <SID>BinOptionG("is", &is)
+call append("$", "magic\tchange the way backslashes are used in search patterns")
+call <SID>BinOptionG("magic", &magic)
+call append("$", "ignorecase\tignore case when using a search pattern")
+call <SID>BinOptionG("ic", &ic)
+call append("$", "smartcase\toverride 'ignorecase' when pattern has upper case characters")
+call <SID>BinOptionG("scs", &scs)
+call append("$", "casemap\tWhat method to use for changing case of letters")
+call <SID>OptionG("cmp", &cmp)
+call append("$", "define\tpattern for a macro definition line")
+call append("$", "\t(global or local to buffer)")
+call <SID>OptionG("def", &def)
+if has("find_in_path")
+  call append("$", "include\tpattern for an include-file line")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("inc")
+  call append("$", "includeexpr\texpression used to transform an include line to a file name")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("inex")
+endif
+
+
+call <SID>Header("tags")
+call append("$", "tagbsearch\tuse binary searching in tags files")
+call <SID>BinOptionG("tbs", &tbs)
+call append("$", "taglength\tnumber of significant characters in a tag name or zero")
+call append("$", " \tset tl=" . &tl)
+call append("$", "tags\tlist of file names to search for tags")
+call append("$", "\t(global or local to buffer)")
+call <SID>OptionG("tag", &tag)
+call append("$", "tagrelative\tfile names in a tags file are relative to the tags file")
+call <SID>BinOptionG("tr", &tr)
+call append("$", "tagstack\ta :tag command will use the tagstack")
+call <SID>BinOptionG("tgst", &tgst)
+call append("$", "showfulltag\twhen completing tags in Insert mode show more info")
+call <SID>BinOptionG("sft", &sft)
+if has("cscope")
+  call append("$", "cscopeprg\tcommand for executing cscope")
+  call <SID>OptionG("csprg", &csprg)
+  call append("$", "cscopetag\tuse cscope for tag commands")
+  call <SID>BinOptionG("cst", &cst)
+  call append("$", "cscopetagorder\t0 or 1; the order in which \":cstag\" performs a search")
+  call append("$", " \tset csto=" . &csto)
+  call append("$", "cscopeverbose\tgive messages when adding a cscope database")
+  call <SID>BinOptionG("csverb", &csverb)
+  call append("$", "cscopepathcomp\thow many components of the path to show")
+  call append("$", " \tset cspc=" . &cspc)
+  call append("$", "cscopequickfix\tWhen to open a quickfix window for cscope")
+  call <SID>OptionG("csqf", &csqf)
+endif
+
+
+call <SID>Header("displaying text")
+call append("$", "scroll\tnumber of lines to scroll for CTRL-U and CTRL-D")
+call append("$", "\t(local to window)")
+call <SID>OptionL("scr")
+call append("$", "scrolloff\tnumber of screen lines to show around the cursor")
+call append("$", " \tset so=" . &so)
+call append("$", "wrap\tlong lines wrap")
+call <SID>BinOptionG("wrap", &wrap)
+call append("$", "linebreak\twrap long lines at a character in 'breakat'")
+call append("$", "\t(local to window)")
+call <SID>BinOptionL("lbr")
+call append("$", "breakat\twhich characters might cause a line break")
+call <SID>OptionG("brk", &brk)
+call append("$", "showbreak\tstring to put before wrapped screen lines")
+call <SID>OptionG("sbr", &sbr)
+call append("$", "sidescroll\tminimal number of columns to scroll horizontally")
+call append("$", " \tset ss=" . &ss)
+call append("$", "sidescrolloff\tminimal number of columns to keep left and right of the cursor")
+call append("$", " \tset siso=" . &siso)
+call append("$", "display\tinclude \"lastline\" to show the last line even if it doesn't fit")
+call append("$", "\tinclude \"uhex\" to show unprintable characters as a hex number")
+call <SID>OptionG("dy", &dy)
+call append("$", "fillchars\tcharacters to use for the status line, folds and filler lines")
+call <SID>OptionG("fcs", &fcs)
+call append("$", "cmdheight\tnumber of lines used for the command-line")
+call append("$", " \tset ch=" . &ch)
+call append("$", "columns\twidth of the display")
+call append("$", " \tset co=" . &co)
+call append("$", "lines\tnumber of lines in the display")
+call append("$", " \tset lines=" . &lines)
+call append("$", "lazyredraw\tdon't redraw while executing macros")
+call <SID>BinOptionG("lz", &lz)
+call append("$", "writedelay\tdelay in msec for each char written to the display")
+call append("$", "\t(for debugging)")
+call append("$", " \tset wd=" . &wd)
+call append("$", "list\tshow <Tab> as ^I and end-of-line as $")
+call append("$", "\t(local to window)")
+call <SID>BinOptionL("list")
+call append("$", "listchars\tlist of strings used for list mode")
+call <SID>OptionG("lcs", &lcs)
+call append("$", "number\tshow the line number for each line")
+call append("$", "\t(local to window)")
+call <SID>BinOptionL("nu")
+
+
+call <SID>Header("syntax and highlighting")
+call append("$", "background\t\"dark\" or \"light\"; the background color brightness")
+call <SID>OptionG("bg", &bg)
+if has("autocmd")
+  call append("$", "filetype\ttype of file; triggers the FileType event when set")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("ft")
+endif
+if has("syntax")
+  call append("$", "syntax\tname of syntax highlighting used")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("syn")
+endif
+call append("$", "highlight\twhich highlighting to use for various occasions")
+call <SID>OptionG("hl", &hl)
+call append("$", "hlsearch\thighlight all matches for the last used search pattern")
+call <SID>BinOptionG("hls", &hls)
+
+
+call <SID>Header("multiple windows")
+call append("$", "laststatus\t0, 1 or 2; when to use a status line for the last window")
+call append("$", " \tset ls=" . &ls)
+if has("statusline")
+  call append("$", "statusline\talternate format to be used for a status line")
+  call <SID>OptionG("stl", &stl)
+endif
+call append("$", "equalalways\tmake all windows the same size when adding/removing windows")
+call <SID>BinOptionG("ea", &ea)
+if has("vertsplit")
+  call append("$", "eadirection\tin which direction 'equalalways' works: \"ver\", \"hor\" or \"both\"")
+  call <SID>OptionG("ead", &ead)
+endif
+call append("$", "winheight\tminimal number of lines used for the current window")
+call append("$", " \tset wh=" . &wh)
+call append("$", "winminheight\tminimal number of lines used for any window")
+call append("$", " \tset wmh=" . &wmh)
+call append("$", "winfixheight\tkeep the height of the window")
+call append("$", "\t(local to window)")
+call <SID>BinOptionL("wfh")
+if has("vertsplit")
+  call append("$", "winwidth\tminimal number of columns used for the current window")
+  call append("$", " \tset wiw=" . &wiw)
+  call append("$", "winminwidth\tminimal number of columns used for any window")
+  call append("$", " \tset wmw=" . &wmw)
+endif
+call append("$", "helpheight\tinitial height of the help window")
+call append("$", " \tset hh=" . &hh)
+if has("quickfix")
+  call append("$", "previewheight\tdefault height for the preview window")
+  call append("$", " \tset pvh=" . &pvh)
+  call append("$", "previewwindow\tidentifies the preview window")
+  call append("$", "\t(local to window)")
+  call <SID>BinOptionL("pvw")
+endif
+call append("$", "hidden\tdon't unload a buffer when no longer shown in a window")
+call <SID>BinOptionG("hid", &hid)
+call append("$", "switchbuf\t\"useopen\" and/or \"split\"; which window to use when jumping")
+call append("$", "\tto a buffer")
+call <SID>OptionG("swb", &swb)
+call append("$", "splitbelow\ta new window is put below the current one")
+call <SID>BinOptionG("sb", &sb)
+if has("vertsplit")
+  call append("$", "splitright\ta new window is put right of the current one")
+  call <SID>BinOptionG("spr", &spr)
+endif
+if has("scrollbind")
+  call append("$", "scrollbind\tthis window scrolls together with other bound windows")
+  call append("$", "\t(local to window)")
+  call <SID>BinOptionL("scb")
+  call append("$", "scrollopt\t\"ver\", \"hor\" and/or \"jump\"; list of options for 'scrollbind'")
+  call <SID>OptionG("sbo", &sbo)
+endif
+
+
+call <SID>Header("terminal")
+call append("$", "term\tname of the used terminal")
+call <SID>OptionG("term", &term)
+call append("$", "ttytype\talias for 'term'")
+call <SID>OptionG("tty", &tty)
+call append("$", "ttybuiltin\tcheck built-in termcaps first")
+call <SID>BinOptionG("tbi", &tbi)
+call append("$", "ttyfast\tterminal connection is fast")
+call <SID>BinOptionG("tf", &tf)
+call append("$", "weirdinvert\tterminal that requires extra redrawing")
+call <SID>BinOptionG("wiv", &wiv)
+call append("$", "esckeys\trecognize keys that start with <Esc> in Insert mode")
+call <SID>BinOptionG("ek", &ek)
+call append("$", "scrolljump\tminimal number of lines to scroll at a time")
+call append("$", " \tset sj=" . &sj)
+call append("$", "ttyscroll\tmaximum number of lines to use scrolling instead of redrawing")
+call append("$", " \tset tsl=" . &tsl)
+if has("gui") || has("msdos") || has("win32")
+  call append("$", "guicursor\tspecifies what the cursor looks like in different modes")
+  call <SID>OptionG("gcr", &gcr)
+endif
+if has("title")
+  let &title = s:old_title
+  call append("$", "title\tshow info in the window title")
+  call <SID>BinOptionG("title", &title)
+  set notitle
+  call append("$", "titlelen\tpercentage of 'columns' used for the window title")
+  call append("$", " \tset titlelen=" . &titlelen)
+  call append("$", "titlestring\twhen not empty, string to be used for the window title")
+  call <SID>OptionG("titlestring", &titlestring)
+  call append("$", "titleold\tstring to restore the title to when exiting Vim")
+  call <SID>OptionG("titleold", &titleold)
+  let &icon = s:old_icon
+  call append("$", "icon\tset the text of the icon for this window")
+  call <SID>BinOptionG("icon", &icon)
+  set noicon
+  call append("$", "iconstring\twhen not empty, text for the icon of this window")
+  call <SID>OptionG("iconstring", &iconstring)
+endif
+if has("win32")
+  call append("$", "restorescreen\trestore the screen contents when exiting Vim")
+  call <SID>BinOptionG("rs", &rs)
+endif
+
+
+call <SID>Header("using the mouse")
+call append("$", "mouse\tlist of flags for using the mouse")
+call <SID>OptionG("mouse", &mouse)
+if has("gui")
+  call append("$", "mousefocus\tthe window with the mouse pointer becomes the current one")
+  call <SID>BinOptionG("mousef", &mousef)
+  call append("$", "mousehide\thide the mouse pointer while typing")
+  call <SID>BinOptionG("mh", &mh)
+endif
+call append("$", "mousemodel\t\"extend\", \"popup\" or \"popup_setpos\"; what the right")
+call append("$", "\tmouse button is used for")
+call <SID>OptionG("mousem", &mousem)
+call append("$", "mousetime\tmaximum time in msec to recognize a double-click")
+call append("$", " \tset mouset=" . &mouset)
+call append("$", "ttymouse\t\"xterm\", \"xterm2\", \"dec\" or \"netterm\"; type of mouse")
+call <SID>OptionG("ttym", &ttym)
+if has("mouseshape")
+  call append("$", "mouseshape\twhat the mouse pointer looks like in different modes")
+  call <SID>OptionG("mouses", &mouses)
+endif
+
+
+if has("gui")
+  call <SID>Header("GUI")
+  call append("$", "guifont\tlist of font names to be used in the GUI")
+  call <SID>OptionG("gfn", &gfn)
+  if has("xfontset")
+    call append("$", "guifontset\tpair of fonts to be used, for multibyte editing")
+    call <SID>OptionG("gfs", &gfs)
+  endif
+  call append("$", "guifontwide\tlist of font names to be used for double-wide characters")
+  call <SID>OptionG("gfw", &gfw)
+  if has("mac")
+    call append("$", "antialias\tuse smooth, antialiased fonts")
+    call <SID>BinOptionG("anti", &anti)
+  endif
+  call append("$", "guioptions\tlist of flags that specify how the GUI works")
+  call <SID>OptionG("go", &go)
+  if has("gui_gtk")
+    call append("$", "toolbar\t\"icons\", \"text\" and/or \"tooltips\"; how to show the toolbar")
+    call <SID>OptionG("tb", &tb)
+    if has("gui_gtk2")
+      call append("$", "toolbariconsize\tSize of toolbar icons")
+      call <SID>OptionG("tbis", &tbis)
+    endif
+    call append("$", "guiheadroom\troom (in pixels) left above/below the window")
+    call append("$", " \tset ghr=" . &ghr)
+  endif
+  call append("$", "guipty\tuse a pseudo-tty for I/O to external commands")
+  call <SID>BinOptionG("guipty", &guipty)
+  if has("browse")
+    call append("$", "browsedir\t\"last\", \"buffer\" or \"current\": which directory used for the file browser")
+    call <SID>OptionG("bsdir", &bsdir)
+  endif
+  if has("multi_lang")
+    call append("$", "langmenu\tlanguage to be used for the menus")
+    call <SID>OptionG("langmenu", &lm)
+  endif
+  call append("$", "menuitems\tmaximum number of items in one menu")
+  call append("$", " \tset mis=" . &mis)
+  if has("winaltkeys")
+    call append("$", "winaltkeys\t\"no\", \"yes\" or \"menu\"; how to use the ALT key")
+    call <SID>OptionG("wak", &wak)
+  endif
+  call append("$", "linespace\tnumber of pixel lines to use between characters")
+  call append("$", " \tset lsp=" . &lsp)
+  if has("balloon_eval")
+    call append("$", "balloondelay\tdelay in milliseconds before a balloon may pop up")
+    call append("$", " \tset bdlay=" . &bdlay)
+    if has("sun_workshop")
+      call append("$", "ballooneval\twhether the balloon evaluation is to be used")
+      call <SID>BinOptionG("beval", &beval)
+    endif
+  endif
+endif
+
+if has("printer")
+  call <SID>Header("printing")
+  call append("$", "printdevice\tname of the printer to be used for :hardcopy")
+  call <SID>OptionG("pdev", &pdev)
+  call append("$", "printencoding\tencoding used to print the PostScript file for :hardcopy")
+  call <SID>OptionG("penc", &penc)
+  call append("$", "printexpr\texpression used to print the PostScript file for :hardcopy")
+  call <SID>OptionG("pexpr", &pexpr)
+  call append("$", "printfont\tname of the font to be used for :hardcopy")
+  call <SID>OptionG("pfn", &pfn)
+  call append("$", "printheader\tformat of the header used for :hardcopy")
+  call <SID>OptionG("pheader", &pheader)
+  call append("$", "printoptions\tlist of items that control the format of :hardcopy output")
+  call <SID>OptionG("popt", &popt)
+endif
+
+call <SID>Header("messages and info")
+call append("$", "terse\tadd 's' flag in 'shortmess' (don't show search message)")
+call <SID>BinOptionG("terse", &terse)
+call append("$", "shortmess\tlist of flags to make messages shorter")
+call <SID>OptionG("shm", &shm)
+call append("$", "showcmd\tshow (partial) command keys in the status line")
+let &sc = s:old_sc
+call <SID>BinOptionG("sc", &sc)
+set nosc
+call append("$", "showmode\tdisplay the current mode in the status line")
+call <SID>BinOptionG("smd", &smd)
+call append("$", "ruler\tshow cursor position below each window")
+let &ru = s:old_ru
+call <SID>BinOptionG("ru", &ru)
+set noru
+if has("statusline")
+  call append("$", "rulerformat\talternate format to be used for the ruler")
+  call <SID>OptionG("ruf", &ruf)
+endif
+call append("$", "report\tthreshold for reporting number of changed lines")
+call append("$", " \tset report=" . &report)
+call append("$", "verbose\tthe higher the more messages are given")
+call append("$", " \tset vbs=" . &vbs)
+call append("$", "more\tpause listings when the screen is full")
+call <SID>BinOptionG("more", &more)
+if has("dialog_con") || has("dialog_gui")
+  call append("$", "confirm\tstart a dialog when a command fails")
+  call <SID>BinOptionG("cf", &cf)
+endif
+call append("$", "errorbells\tring the bell for error messages")
+call <SID>BinOptionG("eb", &eb)
+call append("$", "visualbell\tuse a visual bell instead of beeping")
+call <SID>BinOptionG("vb", &vb)
+if has("multi_lang")
+  call append("$", "helplang\tlist of preferred languages for finding help")
+  call <SID>OptionG("hlg", &hlg)
+endif
+
+
+call <SID>Header("selecting text")
+call append("$", "selection\t\"old\", \"inclusive\" or \"exclusive\"; how selecting text behaves")
+call <SID>OptionG("sel", &sel)
+call append("$", "selectmode\t\"mouse\", \"key\" and/or \"cmd\"; when to start Select mode")
+call append("$", "\tinstead of Visual mode")
+call <SID>OptionG("slm", &slm)
+if has("clipboard")
+  call append("$", "clipboard\t\"unnamed\" to use the * register like unnamed register")
+  call append("$", "\t\"autoselect\" to always put selected text on the clipboard")
+  call <SID>OptionG("cb", &cb)
+endif
+call append("$", "keymodel\t\"startsel\" and/or \"stopsel\"; what special keys can do")
+call <SID>OptionG("km", &km)
+
+
+call <SID>Header("editing text")
+call append("$", "undolevels\tmaximum number of changes that can be undone")
+call append("$", " \tset ul=" . &ul)
+call append("$", "modified\tchanges have been made and not written to a file")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("mod")
+call append("$", "readonly\tbuffer is not to be written")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("ro")
+call append("$", "modifiable\tchanges to the text are not possible")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("ma")
+call append("$", "textwidth\tline length above which to break a line")
+call append("$", "\t(local to buffer)")
+call <SID>OptionL("tw")
+call append("$", "wrapmargin\tmargin from the right in which to break a line")
+call append("$", "\t(local to buffer)")
+call <SID>OptionL("wm")
+call append("$", "backspace\tspecifies what <BS>, CTRL-W, etc. can do in Insert mode")
+call append("$", " \tset bs=" . &bs)
+call append("$", "comments\tdefinition of what comment lines look like")
+call append("$", "\t(local to buffer)")
+call <SID>OptionL("com")
+call append("$", "formatoptions\tlist of flags that tell how automatic formatting works")
+call append("$", "\t(local to buffer)")
+call <SID>OptionL("fo")
+if has("insert_expand")
+  call append("$", "complete\tspecifies how Insert mode completion works")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("cpt")
+  call append("$", "dictionary\tlist of dictionary files for keyword completion")
+  call append("$", "\t(global or local to buffer)")
+  call <SID>OptionG("dict", &dict)
+  call append("$", "thesaurus\tlist of thesaurus files for keyword completion")
+  call append("$", "\t(global or local to buffer)")
+  call <SID>OptionG("tsr", &tsr)
+endif
+call append("$", "infercase\tadjust case of a keyword completion match")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("inf")
+if has("digraphs")
+  call append("$", "digraph\tenable entering digraps with c1 <BS> c2")
+  call <SID>BinOptionG("dg", &dg)
+endif
+call append("$", "tildeop\tthe \"~\" command behaves like an operator")
+call <SID>BinOptionG("top", &top)
+call append("$", "showmatch\tWhen inserting a bracket, briefly jump to its match")
+call <SID>BinOptionG("sm", &sm)
+call append("$", "matchtime\ttenth of a second to show a match for 'showmatch'")
+call append("$", " \tset mat=" . &mat)
+call append("$", "matchpairs\tlist of pairs that match for the \"%\" command")
+call append("$", "\t(local to buffer)")
+call <SID>OptionL("mps")
+call append("$", "joinspaces\tuse two spaces after '.' when joining a line")
+call <SID>BinOptionG("js", &js)
+call append("$", "nrformats\t\"alpha\", \"octal\" and/or \"hex\"; number formats recognized for")
+call append("$", "\tCTRL-A and CTRL-X commands")
+call append("$", "\t(local to buffer)")
+call <SID>OptionL("nf")
+
+
+call <SID>Header("tabs and indenting")
+call append("$", "tabstop\tnumber of spaces a <Tab> in the text stands for")
+call append("$", "\t(local to buffer)")
+call <SID>OptionL("ts")
+call append("$", "shiftwidth\tnumber of spaces used for each step of (auto)indent")
+call append("$", "\t(local to buffer)")
+call <SID>OptionL("sw")
+call append("$", "smarttab\ta <Tab> in an indent inserts 'shiftwidth' spaces")
+call <SID>BinOptionG("sta", &sta)
+call append("$", "softtabstop\tif non-zero, number of spaces to insert for a <Tab>")
+call append("$", "\t(local to buffer)")
+call <SID>OptionL("sts")
+call append("$", "shiftround\tround to 'shiftwidth' for \"<<\" and \">>\"")
+call <SID>BinOptionG("sr", &sr)
+call append("$", "expandtab\texpand <Tab> to spaces in Insert mode")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("et")
+call append("$", "autoindent\tautomatically set the indent of a new line")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("ai")
+if has("smartindent")
+  call append("$", "smartindent\tdo clever autoindenting")
+  call append("$", "\t(local to buffer)")
+  call <SID>BinOptionL("si")
+endif
+if has("cindent")
+  call append("$", "cindent\tenable specific indenting for C code")
+  call append("$", "\t(local to buffer)")
+  call <SID>BinOptionL("cin")
+  call append("$", "cinoptions\toptions for C-indenting")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("cino")
+  call append("$", "cinkeys\tkeys that trigger C-indenting in Insert mode")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("cink")
+  call append("$", "cinwords\tlist of words that cause more C-indent")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("cinw")
+  call append("$", "indentexpr\texpression used to obtain the indent of a line")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("inde")
+  call append("$", "indentkeys\tkeys that trigger indenting with 'indentexpr' in Insert mode")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("indk")
+endif
+call append("$", "copyindent\tCopy whitespace for indenting from previous line")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("ci")
+call append("$", "preserveindent\tPreserve kind of whitespace when changing indent")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("pi")
+if has("lispindent")
+  call append("$", "lisp\tenable lisp mode")
+  call append("$", "\t(local to buffer)")
+  call <SID>BinOptionL("lisp")
+  call append("$", "lispwords\twords that change how lisp indenting works")
+  call <SID>OptionG("lw", &lw)
+endif
+
+
+if has("folding")
+  call <SID>Header("folding")
+  call append("$", "foldenable\tset to display all folds open")
+  call append("$", "\t(local to window)")
+  call <SID>BinOptionL("fen")
+  call append("$", "foldlevel\tfolds with a level higher than this number will be closed")
+  call append("$", "\t(local to window)")
+  call <SID>OptionL("fdl")
+  call append("$", "foldlevelstart\tvalue for 'foldlevel' when starting to edit a file")
+  call append("$", " \tset fdls=" . &fdls)
+  call append("$", "foldcolumn\twidth of the column used to indicate folds")
+  call append("$", "\t(local to window)")
+  call <SID>OptionL("fdc")
+  call append("$", "foldtext\texpression used to display the text of a closed fold")
+  call append("$", "\t(local to window)")
+  call <SID>OptionL("fdt")
+  call append("$", "foldclose\tset to \"all\" to close a fold when the cursor leaves it")
+  call <SID>OptionG("fcl", &fcl)
+  call append("$", "foldopen\tspecifies for which commands a fold will be opened")
+  call <SID>OptionG("fdo", &fdo)
+  call append("$", "foldminlines\tminimum number of screen lines for a fold to be closed")
+  call append("$", "\t(local to window)")
+  call <SID>OptionL("fml")
+  call append("$", "commentstring\ttemplate for comments; used to put the marker in")
+  call <SID>OptionL("cms")
+  call append("$", "foldmethod\tfolding type: \"manual\", \"indent\", \"expr\", \"marker\" or \"syntax\"")
+  call append("$", "\t(local to window)")
+  call <SID>OptionL("fdm")
+  call append("$", "foldexpr\texpression used when 'foldmethod' is \"expr\"")
+  call append("$", "\t(local to window)")
+  call <SID>OptionL("fde")
+  call append("$", "foldignore\tused to ignore lines when 'foldmethod' is \"indent\"")
+  call append("$", "\t(local to window)")
+  call <SID>OptionL("fdi")
+  call append("$", "foldmarker\tmarkers used when 'foldmethod' is \"marker\"")
+  call append("$", "\t(local to window)")
+  call <SID>OptionL("fmr")
+  call append("$", "foldnestmax\tmaximum fold depth for when 'foldmethod is \"indent\" or \"syntax\"")
+  call append("$", "\t(local to window)")
+  call <SID>OptionL("fdn")
+endif
+
+
+if has("diff")
+  call <SID>Header("diff mode")
+  call append("$", "diff\tuse diff mode for the current window")
+  call append("$", "\t(local to window)")
+  call <SID>BinOptionL("diff")
+  call append("$", "diffopt\toptions for using diff mode")
+  call <SID>OptionG("dip", &dip)
+  call append("$", "diffexpr\texpression used to obtain a diff file")
+  call <SID>OptionG("dex", &dex)
+  call append("$", "patchexpr\texpression used to patch a file")
+  call <SID>OptionG("pex", &pex)
+endif
+
+
+call <SID>Header("mapping")
+call append("$", "maxmapdepth\tmaximum depth of mapping")
+call append("$", " \tset mmd=" . &mmd)
+call append("$", "remap\trecognize mappings in mapped keys")
+call <SID>BinOptionG("remap", &remap)
+call append("$", "timeout\tallow timing out halfway into a mapping")
+call <SID>BinOptionG("to", &to)
+call append("$", "ttimeout\tallow timing out halfway into a key code")
+call <SID>BinOptionG("ttimeout", &ttimeout)
+call append("$", "timeoutlen\ttime in msec for 'timeout'")
+call append("$", " \tset tm=" . &tm)
+call append("$", "ttimeoutlen\ttime in msec for 'ttimeout'")
+call append("$", " \tset ttm=" . &ttm)
+
+
+call <SID>Header("reading and writing files")
+call append("$", "modeline\tenable using settings from modelines when reading a file")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("ml")
+call append("$", "modelines\tnumber of lines to check for modelines")
+call append("$", " \tset mls=" . &mls)
+call append("$", "binary\tbinary file editing")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("bin")
+call append("$", "endofline\tlast line in the file has an end-of-line")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("eol")
+if has("multi_byte")
+  call append("$", "bomb\tPrepend a Byte Order Mark to the file")
+  call append("$", "\t(local to buffer)")
+  call <SID>BinOptionL("bomb")
+endif
+call append("$", "fileformat\tend-of-line format: \"dos\", \"unix\" or \"mac\"")
+call append("$", "\t(local to buffer)")
+call <SID>OptionL("ff")
+call append("$", "fileformats\tlist of file formats to look for when editing a file")
+call <SID>OptionG("ffs", &ffs)
+call append("$", "textmode\tobsolete, use 'fileformat'")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("tx")
+call append("$", "textauto\tobsolete, use 'fileformats'")
+call <SID>BinOptionG("ta", &ta)
+call append("$", "write\twriting files is allowed")
+call <SID>BinOptionG("write", &write)
+call append("$", "writebackup\twrite a backup file before overwriting a file")
+call <SID>BinOptionG("wb", &wb)
+call append("$", "backup\tkeep a backup after overwriting a file")
+call <SID>BinOptionG("bk", &bk)
+call append("$", "backupskip\tpatterns that specify for which files a backup is not made")
+call append("$", " \tset bsk=" . &bsk)
+call append("$", "backupcopy\twhether to make the backup as a copy or rename the existing file")
+call append("$", " \tset bkc=" . &bkc)
+call append("$", "backupdir\tlist of directories to put backup files in")
+call <SID>OptionG("bdir", &bdir)
+call append("$", "backupext\tfile name extension for the backup file")
+call <SID>OptionG("bex", &bex)
+call append("$", "autowrite\tautomatically write a file when leaving a modified buffer")
+call <SID>BinOptionG("aw", &aw)
+call append("$", "autowriteall\tas 'autowrite', but works with more commands")
+call <SID>BinOptionG("awa", &awa)
+call append("$", "writeany\talways write without asking for confirmation")
+call <SID>BinOptionG("wa", &wa)
+call append("$", "autoread\tautomatically read a file when it was modified outside of Vim")
+call append("$", "\t(global or local to buffer)")
+call <SID>BinOptionG("ar", &ar)
+call append("$", "patchmode\tkeep oldest version of a file; specifies file name extension")
+call <SID>OptionG("pm", &pm)
+if !has("msdos")
+  call append("$", "shortname\tuse 8.3 file names")
+  call append("$", "\t(local to buffer)")
+  call <SID>BinOptionL("sn")
+endif
+
+
+call <SID>Header("the swap file")
+call append("$", "directory\tlist of directories for the swap file")
+call <SID>OptionG("dir", &dir)
+call append("$", "swapfile\tuse a swap file for this buffer")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("swf")
+call append("$", "swapsync\t\"sync\", \"fsync\" or empty; how to flush a swap file to disk")
+call <SID>OptionG("sws", &sws)
+call append("$", "updatecount\tnumber of characters typed to cause a swap file update")
+call append("$", " \tset uc=" . &uc)
+call append("$", "updatetime\ttime in msec after which the swap file will be updated")
+call append("$", " \tset ut=" . &ut)
+call append("$", "maxmem\tmaximum amount of memory in Kbyte used for one buffer")
+call append("$", " \tset mm=" . &mm)
+call append("$", "maxmemtot\tmaximum amount of memory in Kbyte used for all buffers")
+call append("$", " \tset mmt=" . &mmt)
+
+
+call <SID>Header("command line editing")
+call append("$", "history\thow many command lines are remembered ")
+call append("$", " \tset hi=" . &hi)
+call append("$", "wildchar\tkey that triggers command-line expansion")
+call append("$", " \tset wc=" . &wc)
+call append("$", "wildcharm\tlike 'wildchar' but can also be used in a mapping")
+call append("$", " \tset wcm=" . &wcm)
+call append("$", "wildmode\tspecifies how command line completion works")
+call <SID>OptionG("wim", &wim)
+call append("$", "suffixes\tlist of file name extensions that have a lower priority")
+call <SID>OptionG("su", &su)
+if has("file_in_path")
+  call append("$", "suffixesadd\tlist of file name extensions added when searching for a file")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("sua")
+endif
+if has("wildignore")
+  call append("$", "wildignore\tlist of patterns to ignore files for file name completion")
+  call <SID>OptionG("wig", &wig)
+endif
+if has("wildmenu")
+  call append("$", "wildmenu\tcommand-line completion shows a list of matches")
+  call <SID>BinOptionG("wmnu", &wmnu)
+endif
+if has("vertsplit")
+  call append("$", "cedit\tkey used to open the command-line window")
+  call <SID>OptionG("cedit", &cedit)
+  call append("$", "cmdwinheight\theight of the command-line window")
+  call <SID>OptionG("cwh", &cwh)
+endif
+
+
+call <SID>Header("executing external commands")
+call append("$", "shell\tname of the shell program used for external commands")
+call <SID>OptionG("sh", &sh)
+if has("amiga")
+  call append("$", "shelltype\twhen to use the shell or directly execute a command")
+  call append("$", " \tset st=" . &st)
+endif
+call append("$", "shellquote\tcharacter(s) to enclose a shell command in")
+call <SID>OptionG("shq", &shq)
+call append("$", "shellxquote\tlike 'shellquote' but include the redirection")
+call <SID>OptionG("sxq", &sxq)
+call append("$", "shellcmdflag\targument for 'shell' to execute a command")
+call <SID>OptionG("shcf", &shcf)
+call append("$", "shellredir\tused to redirect command output to a file")
+call <SID>OptionG("srr", &srr)
+call append("$", "equalprg\tprogram used for \"=\" command")
+call append("$", "\t(global or local to buffer)")
+call <SID>OptionG("ep", &ep)
+call append("$", "formatprg\tprogram used to format lines with \"gq\" command")
+call <SID>OptionG("fp", &fp)
+call append("$", "keywordprg\tprogram used for the \"K\" command")
+call <SID>OptionG("kp", &kp)
+call append("$", "warn\twarn when using a shell command and a buffer has changes")
+call <SID>BinOptionG("warn", &warn)
+
+
+if has("quickfix")
+  call <SID>Header("running make and jumping to errors")
+  call append("$", "errorfile\tname of the file that contains error messages")
+  call <SID>OptionG("ef", &ef)
+  call append("$", "errorformat\tlist of formats for error messages")
+  call append("$", "\t(global or local to buffer)")
+  call <SID>OptionG("efm", &efm)
+  call append("$", "makeprg\tprogram used for the \":make\" command")
+  call append("$", "\t(global or local to buffer)")
+  call <SID>OptionG("mp", &mp)
+  call append("$", "shellpipe\tstring used to put the output of \":make\" in the error file")
+  call <SID>OptionG("sp", &sp)
+  call append("$", "makeef\tname of the errorfile for the 'makeprg' command")
+  call <SID>OptionG("mef", &mef)
+  call append("$", "grepprg\tprogram used for the \":grep\" command")
+  call append("$", "\t(global or local to buffer)")
+  call <SID>OptionG("gp", &gp)
+  call append("$", "grepformat\tlist of formats for output of 'grepprg'")
+  call <SID>OptionG("gfm", &gfm)
+endif
+
+
+if has("msdos") || has("os2") || has("win16") || has("win32") || has("osfiletype")
+  call <SID>Header("system specific")
+  if has("msdos")
+    call append("$", "bioskey\tcall the BIOS to get a keyoard character")
+    call <SID>BinOptionG("biosk", &biosk)
+    call append("$", "conskey\tuse direct console I/O to get a keyboard character")
+    call <SID>BinOptionG("consk", &consk)
+  endif
+  if has("osfiletype")
+    call append("$", "osfiletype\tOS-specific information about the type of file")
+    call append("$", "\t(local to buffer)")
+    call <SID>OptionL("oft")
+  endif
+  if has("msdos") || has("os2") || has("win16") || has("win32")
+    call append("$", "shellslash\tuse forward slashes in file names; for Unix-like shells")
+    call <SID>BinOptionG("ssl", &ssl)
+  endif
+endif
+
+
+call <SID>Header("language specific")
+call append("$", "isfname\tspecifies the characters in a file name")
+call <SID>OptionG("isf", &isf)
+call append("$", "isident\tspecifies the characters in an identifier")
+call <SID>OptionG("isi", &isi)
+call append("$", "iskeyword\tspecifies the characters in a keyword")
+call append("$", "\t(local to buffer)")
+call <SID>OptionL("isk")
+call append("$", "isprint\tspecifies printable characters")
+call <SID>OptionG("isp", &isp)
+if has("rightleft")
+  call append("$", "rightleft\tdisplay the buffer right-to-left")
+  call append("$", "\t(local to window)")
+  call <SID>BinOptionL("rl")
+  call append("$", "rightleftcmd\tWhen to edit the command-line right-to-left")
+  call append("$", "\t(local to window)")
+  call <SID>OptionL("rlc")
+  call append("$", "revins\tInsert characters backwards")
+  call <SID>BinOptionG("ri", &ri)
+  call append("$", "allowrevins\tAllow CTRL-_ in Insert and Command-line mode to toggle 'revins'")
+  call <SID>BinOptionG("ari", &ari)
+  call append("$", "aleph\tthe ASCII code for the first letter of the Hebrew alphabet")
+  call append("$", " \tset al=" . &al)
+  call append("$", "hkmap\tuse Hebrew keyboard mapping")
+  call <SID>BinOptionG("hk", &hk)
+  call append("$", "hkmapp\tuse phonetic Hebrew keyboard mapping")
+  call <SID>BinOptionG("hkp", &hkp)
+endif
+if has("farsi")
+  call append("$", "altkeymap\tuse Farsi as the second language when 'revins' is set")
+  call <SID>BinOptionG("akm", &akm)
+  call append("$", "fkmap\tuse Farsi keyboard mapping")
+  call <SID>BinOptionG("fk", &fk)
+endif
+if has("arabic")
+  call append("$", "arabic\tPrepare for editing Arabic text")
+  call append("$", "\t(local to window)")
+  call <SID>BinOptionL("arab")
+  call append("$", "arabicshape\tPerform shaping of Arabic characters")
+  call <SID>BinOptionG("arshape", &arshape)
+  call append("$", "termbidi\tTerminal will perform bidi handling")
+  call <SID>BinOptionG("tbidi", &tbidi)
+endif
+if has("keymap")
+  call append("$", "keymap\tname of a keyboard mappping")
+  call <SID>OptionL("kmp")
+endif
+if has("langmap")
+  call append("$", "langmap\ttranslate characters for Normal mode")
+  call <SID>OptionG("lmap", &lmap)
+endif
+if has("xim")
+  call append("$", "imdisable\twhen set never use IM; overrules following IM options")
+  call <SID>BinOptionG("imd", &imd)
+endif
+call append("$", "iminsert\tin Insert mode: 1: use :lmap; 2: use IM; 0: neither")
+call append("$", "\t(local to window)")
+call <SID>OptionL("imi")
+call append("$", "imsearch\tentering a search pattern: 1: use :lmap; 2: use IM; 0: neither")
+call append("$", "\t(local to window)")
+call <SID>OptionL("ims")
+if has("xim")
+  call append("$", "imcmdline\twhen set always use IM when starting to edit a command line")
+  call <SID>BinOptionG("imc", &imc)
+endif
+
+
+if has("multi_byte")
+  call <SID>Header("multi-byte characters")
+  call append("$", "encoding\tcharacter encoding used in Vim: \"latin1\", \"utf-8\"")
+  call append("$", "\t\"euc-jp\", \"big5\", etc.")
+  call <SID>OptionG("enc", &enc)
+  call append("$", "fileencoding\tcharacter encoding for the current file")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("fenc")
+  call append("$", "fileencodings\tautomatically detected character encodings")
+  call <SID>OptionG("fencs", &fencs)
+  call append("$", "termencoding\tcharacter encoding used by the terminal")
+  call <SID>OptionG("tenc", &tenc)
+  call append("$", "charconvert\texpression used for character encoding conversion")
+  call <SID>OptionG("ccv", &ccv)
+  call append("$", "delcombine\tDelete combining (composing) characters on their own")
+  call <SID>BinOptionG("deco", &deco)
+  if has("xim") && has("gui_gtk")
+    call append("$", "imactivatekey\tkey that activates the X input method")
+    call <SID>OptionG("imak", &imak)
+  endif
+  call append("$", "ambiwidth\tWidth of ambiguous width characters")
+  call <SID>OptionG("ambw", &ambw)
+endif
+
+
+call <SID>Header("various")
+if has("virtualedit")
+  call append("$", "virtualedit\twhen to use virtual editing: \"block\", \"insert\" and/or \"all\"")
+  call <SID>OptionG("ve", &ve)
+endif
+if has("autocmd")
+  call append("$", "eventignore\tlist of autocommand events which are to be ignored")
+  call <SID>OptionG("ei", &ei)
+endif
+call append("$", "loadplugins\tload plugin scripts when starting up")
+call <SID>BinOptionG("lpl", &lpl)
+call append("$", "exrc\tenable reading .vimrc/.exrc/.gvimrc in the current directory")
+call <SID>BinOptionG("ex", &ex)
+call append("$", "secure\tsafer working with script files in the current directory")
+call <SID>BinOptionG("secure", &secure)
+call append("$", "gdefault\tuse the 'g' flag for \":substitute\"")
+call <SID>BinOptionG("gd", &gd)
+call append("$", "edcompatible\t'g' and 'c' flags of \":substitute\" toggle")
+call <SID>BinOptionG("ed", &ed)
+  call append("$", "maxfuncdepth\tmaximum depth of function calls")
+  call append("$", " \tset mfd=" . &mfd)
+if has("mksession")
+  call append("$", "sessionoptions\tlist of words that specifies what to put in a session file")
+  call <SID>OptionG("ssop", &ssop)
+  call append("$", "viewoptions\tlist of words that specifies what to save for :mkview")
+  call <SID>OptionG("vop", &vop)
+  call append("$", "viewdir\tdirectory where to store files with :mkview")
+  call <SID>OptionG("vdir", &vdir)
+endif
+if has("viminfo")
+  call append("$", "viminfo\tlist that specifies what to write in the viminfo file")
+  call <SID>OptionG("vi", &vi)
+endif
+if has("quickfix")
+  call append("$", "bufhidden\twhat happens with a buffer when it's no longer in a window")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("bh")
+  call append("$", "buftype\t\"\", \"nofile\", \"nowrite\" or \"quickfix\": type of buffer")
+  call append("$", "\t(local to buffer)")
+  call <SID>OptionL("bt")
+endif
+call append("$", "buflisted\twhether the buffer shows up in the buffer list")
+call append("$", "\t(local to buffer)")
+call <SID>BinOptionL("bl")
+call append("$", "debug\tset to \"msg\" to see all error messages")
+call append("$", " \tset debug=" . &debug)
+
+set cpo&vim
+
+" go to first line
+1
+
+" reset 'modified', so that ":q" can be used to close the window
+setlocal nomodified
+
+if has("syntax")
+  " Use Vim highlighting, with some additional stuff
+  setlocal ft=vim
+  syn match optwinHeader "^ \=[0-9].*"
+  syn match optwinName "^[a-z]*\t" nextgroup=optwinComment
+  syn match optwinComment ".*" contained
+  syn match optwinComment "^\t.*"
+  if !exists("did_optwin_syntax_inits")
+    let did_optwin_syntax_inits = 1
+    hi link optwinHeader Title
+    hi link optwinName Identifier
+    hi link optwinComment Comment
+  endif
+endif
+
+" Install autocommands to enable mappings in option-window
+noremap <silent> <buffer> <CR> <C-\><C-N>:call <SID>CR()<CR>
+inoremap <silent> <buffer> <CR> <Esc>:call <SID>CR()<CR>
+noremap <silent> <buffer> <Space> :call <SID>Space()<CR>
+
+" Make the buffer be deleted when the window is closed.
+setlocal buftype=nofile bufhidden=delete noswapfile
+
+augroup optwin
+  au! BufUnload,BufHidden option-window nested
+	\ call <SID>unload() | delfun <SID>unload
+augroup END
+
+fun! <SID>unload()
+  delfun <SID>CR
+  delfun <SID>Space
+  delfun <SID>Find
+  delfun <SID>Update
+  delfun <SID>OptionL
+  delfun <SID>OptionG
+  delfun <SID>BinOptionL
+  delfun <SID>BinOptionG
+  delfun <SID>Header
+  au! optwin
+endfun
+
+" Restore the previous value of 'title' and 'icon'.
+let &title = s:old_title
+let &icon = s:old_icon
+let &ru = s:old_ru
+let &sc = s:old_sc
+let &cpo = s:cpo_save
+unlet s:old_title s:old_icon s:old_ru s:old_sc s:cpo_save s:idx s:lnum