neovim

Neovim text editor
git clone https://git.dasho.dev/neovim.git
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commit caa9419355456e85f27006291abc6643d83f01a7
parent a04c73cc17f5fd9643fcf9de28ef957547f4a424
Author: altermo <107814000+altermo@users.noreply.github.com>
Date:   Thu, 20 Nov 2025 05:43:15 +0100

refactor!: optwin.lua #36505

Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Co-authored-by: Justin M. Keyes <justinkz@gmail.com>
Diffstat:

Druntime/optwin.vim | 1340-------------------------------------------------------------------------------


Aruntime/scripts/optwin.lua | 713+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


Msrc/nvim/option.c | 2+-


Msrc/nvim/po/CMakeLists.txt | 8+-------


Msrc/nvim/vim_defs.h | 2+-


Atest/functional/plugin/optwin_spec.lua | 101+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


Mtest/old/testdir/test_options.vim | 14+++++++-------


7 files changed, 824 insertions(+), 1356 deletions(-)

diff --git a/runtime/optwin.vim b/runtime/optwin.vim
@@ -1,1340 +0,0 @@
-" These commands create the option window.
-"
-" Maintainer:	The Vim Project <https://github.com/vim/vim>
-" Last Change:	2025 Sep 30
-" Former Maintainer:	Bram Moolenaar <Bram@vim.org>
-
-" If there already is an option window, jump to that one.
-let buf = bufexists('option-window') ? bufnr('option-window') : -1
-if buf >= 0
-  let winids = win_findbuf(buf)
-  if len(winids) > 0
-    if win_gotoid(winids[0]) == 1
-      finish
-    endif
-  endif
-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
-func <SID>CR()
-
-  " If on a continued comment line, go back to the first comment line
-  let lnum = search("^[^\t]", 'bWcn')
-  let line = getline(lnum)
-
-  " <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
-endfunc
-
-" function to be called when <Space> is hit in the option-window
-func <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
-endfunc
-
-let s:local_to_window = gettext('(local to window)')
-let s:local_to_buffer = gettext('(local to buffer)')
-let s:global_or_local = gettext('(global or local to buffer)')
-
-" find the window in which the option applies
-" returns 0 for global option, 1 for local option, -1 for error
-func <SID>Find(lnum)
-    let line = getline(a:lnum - 1)
-    if line =~ s:local_to_window || line =~ s:local_to_buffer
-      let local = 1
-      let thiswin = winnr()
-      wincmd p
-      if exists("b:current_syntax") && b:current_syntax == "help"
-	wincmd j
-	if winnr() == thiswin
-	  wincmd 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
-endfunc
-
-" Update a "set" line in the option window
-func <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
-  let val = escape(eval('&' . name), " \t\\\"|")
-  if a:local
-    exe a:thiswin . "wincmd 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
-endfunc
-
-" Reset 'title' and 'icon' to make it work faster.
-" Reset 'undolevels' to avoid undo'ing until the buffer is empty.
-let s:old_title = &title
-let s:old_icon = &icon
-let s:old_sc = &sc
-let s:old_ru = &ru
-let s:old_ul = &ul
-set notitle noicon nosc noru ul=-1
-
-" 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"
-  wincmd w
-  if s:thiswin == winnr()
-    break
-  endif
-endwhile
-
-" Open the window.  $OPTWIN_CMD is set to "tab" for ":tab options".
-exe $OPTWIN_CMD . ' new option-window'
-setlocal ts=15 tw=0 noro buftype=nofile
-
-" Insert help and a "set" command for each option.
-call append(0, gettext('" Each "set" line shows the current value of an option (on the left).'))
-call append(1, gettext('" Hit <Enter> on a "set" line to execute it.'))
-call append(2, gettext('"            A boolean option will be toggled.'))
-call append(3, gettext('"            For other options you can edit the value before hitting <Enter>.'))
-call append(4, gettext('" Hit <Enter> on a help line to open a help window on this option.'))
-call append(5, gettext('" Hit <Enter> on an index line to jump there.'))
-call append(6, gettext('" Hit <Space> on a "set" line to refresh it.'))
-
-" These functions are called often below.  Keep them fast!
-
-" Add an option name and explanation.  The text can contain "\n" characters
-" where a line break is to be inserted.
-func <SID>AddOption(name, text)
-  let lines = split(a:text, "\n")
-  call append("$", a:name .. "\t" .. lines[0])
-  for line in lines[1:]
-    call append("$", "\t" .. line)
-  endfor
-endfunc
-
-" Init a local binary option
-func <SID>BinOptionL(name)
-  let val = getwinvar(winnr('#'), '&' . a:name)
-  call append("$", substitute(substitute(" \tset " . val . a:name . "\t" .
-	\!val . a:name, "0", "no", ""), "1", "", ""))
-endfunc
-
-" Init a global binary option
-func <SID>BinOptionG(name, val)
-  call append("$", substitute(substitute(" \tset " . a:val . a:name . "\t" .
-	\!a:val . a:name, "0", "no", ""), "1", "", ""))
-endfunc
-
-" Init a local string option
-func <SID>OptionL(name)
-  let val = escape(getwinvar(winnr('#'), '&' . a:name), " \t\\\"|")
-  call append("$", " \tset " . a:name . "=" . val)
-endfunc
-
-" Init a global string option
-func <SID>OptionG(name, val)
-  call append("$", " \tset " . a:name . "=" . escape(a:val, " \t\\\"|"))
-endfunc
-
-let s:idx = 1
-let s:lnum = line("$")
-call append("$", "")
-
-func <SID>Header(text)
-  let line = s:idx . " " . a:text
-  if s:idx < 10
-    let line = " " . line
-  endif
-  call append("$", "")
-  call append("$", line)
-  call append("$", "")
-  call append(s:lnum, line)
-  let s:idx = s:idx + 1
-  let s:lnum = s:lnum + 1
-endfunc
-
-" 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(gettext("important"))
-call <SID>AddOption("compatible", gettext("behave very Vi compatible (not advisable)"))
-call <SID>BinOptionG("cp", &cp)
-call <SID>AddOption("cpoptions", gettext("list of flags to specify Vi compatibility"))
-call <SID>OptionG("cpo", &cpo)
-call <SID>AddOption("paste", gettext("paste mode, insert typed text literally"))
-call <SID>BinOptionG("paste", &paste)
-call <SID>AddOption("runtimepath", gettext("list of directories used for runtime files and plugins"))
-call <SID>OptionG("rtp", &rtp)
-call <SID>AddOption("packpath", gettext("list of directories used for plugin packages"))
-call <SID>OptionG("pp", &pp)
-call <SID>AddOption("helpfile", gettext("name of the main help file"))
-call <SID>OptionG("hf", &hf)
-
-
-call <SID>Header(gettext("moving around, searching and patterns"))
-call <SID>AddOption("whichwrap", gettext("list of flags specifying which commands wrap to another line"))
-call <SID>OptionG("ww", &ww)
-call <SID>AddOption("startofline", gettext("many jump commands move the cursor to the first non-blank\ncharacter of a line"))
-call <SID>BinOptionG("sol", &sol)
-call <SID>AddOption("paragraphs", gettext("nroff macro names that separate paragraphs"))
-call <SID>OptionG("para", &para)
-call <SID>AddOption("sections", gettext("nroff macro names that separate sections"))
-call <SID>OptionG("sect", &sect)
-call <SID>AddOption("path", gettext("list of directory names used for file searching"))
-call append("$", "\t" .. s:global_or_local)
-call <SID>OptionG("pa", &pa)
-call <SID>AddOption("cdhome", gettext(":cd without argument goes to the home directory"))
-call <SID>BinOptionG("cdh", &cdh)
-call <SID>AddOption("cdpath", gettext("list of directory names used for :cd"))
-call <SID>OptionG("cd", &cd)
-if exists("+autochdir")
-  call <SID>AddOption("autochdir", gettext("change to directory of file in buffer"))
-  call <SID>BinOptionG("acd", &acd)
-endif
-call <SID>AddOption("wrapscan", gettext("search commands wrap around the end of the buffer"))
-call <SID>BinOptionG("ws", &ws)
-call <SID>AddOption("incsearch", gettext("show match for partly typed search command"))
-call <SID>BinOptionG("is", &is)
-call <SID>AddOption("magic", gettext("change the way backslashes are used in search patterns"))
-call <SID>BinOptionG("magic", &magic)
-call <SID>AddOption("regexpengine", gettext("select the default regexp engine used"))
-call <SID>OptionG("re", &re)
-call <SID>AddOption("ignorecase", gettext("ignore case when using a search pattern"))
-call <SID>BinOptionG("ic", &ic)
-call <SID>AddOption("smartcase", gettext("override 'ignorecase' when pattern has upper case characters"))
-call <SID>BinOptionG("scs", &scs)
-call <SID>AddOption("maxsearchcount", gettext("maximum number for the search count feature"))
-call <SID>OptionG("msc", &msc)
-call <SID>AddOption("casemap", gettext("what method to use for changing case of letters"))
-call <SID>OptionG("cmp", &cmp)
-call <SID>AddOption("maxmempattern", gettext("maximum amount of memory in Kbyte used for pattern matching"))
-call append("$", " \tset mmp=" . &mmp)
-call <SID>AddOption("define", gettext("pattern for a macro definition line"))
-call append("$", "\t" .. s:global_or_local)
-call <SID>OptionG("def", &def)
-if has("find_in_path")
-  call <SID>AddOption("include", gettext("pattern for an include-file line"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("inc")
-  call <SID>AddOption("includeexpr", gettext("expression used to transform an include line to a file name"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("inex")
-endif
-
-
-call <SID>Header(gettext("tags"))
-call <SID>AddOption("tagbsearch", gettext("use binary searching in tags files"))
-call <SID>BinOptionG("tbs", &tbs)
-call <SID>AddOption("taglength", gettext("number of significant characters in a tag name or zero"))
-call append("$", " \tset tl=" . &tl)
-call <SID>AddOption("tags", gettext("list of file names to search for tags"))
-call append("$", "\t" .. s:global_or_local)
-call <SID>OptionG("tag", &tag)
-call <SID>AddOption("tagcase", gettext("how to handle case when searching in tags files:\n\"followic\" to follow 'ignorecase', \"ignore\" or \"match\""))
-call append("$", "\t" .. s:global_or_local)
-call <SID>OptionG("tc", &tc)
-call <SID>AddOption("tagrelative", gettext("file names in a tags file are relative to the tags file"))
-call <SID>BinOptionG("tr", &tr)
-call <SID>AddOption("tagstack", gettext("a :tag command will use the tagstack"))
-call <SID>BinOptionG("tgst", &tgst)
-call <SID>AddOption("showfulltag", gettext("when completing tags in Insert mode show more info"))
-call <SID>BinOptionG("sft", &sft)
-if has("eval")
-  call <SID>AddOption("tagfunc", gettext("a function to be used to perform tag searches"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("tfu")
-endif
-
-
-call <SID>Header(gettext("displaying text"))
-call <SID>AddOption("scroll", gettext("number of lines to scroll for CTRL-U and CTRL-D"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>OptionL("scr")
-call <SID>AddOption("smoothscroll", gettext("scroll by screen line"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>BinOptionL("sms")
-call <SID>AddOption("scrolloff", gettext("number of screen lines to show around the cursor"))
-call append("$", " \tset so=" . &so)
-call <SID>AddOption("wrap", gettext("long lines wrap"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>BinOptionL("wrap")
-call <SID>AddOption("linebreak", gettext("wrap long lines at a character in 'breakat'"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>BinOptionL("lbr")
-call <SID>AddOption("breakindent", gettext("preserve indentation in wrapped text"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>BinOptionL("bri")
-call <SID>AddOption("breakindentopt", gettext("adjust breakindent behaviour"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>OptionL("briopt")
-call <SID>AddOption("breakat", gettext("which characters might cause a line break"))
-call <SID>OptionG("brk", &brk)
-call <SID>AddOption("showbreak", gettext("string to put before wrapped screen lines"))
-call <SID>OptionG("sbr", &sbr)
-call <SID>AddOption("sidescroll", gettext("minimal number of columns to scroll horizontally"))
-call append("$", " \tset ss=" . &ss)
-call <SID>AddOption("sidescrolloff", gettext("minimal number of columns to keep left and right of the cursor"))
-call append("$", " \tset siso=" . &siso)
-call <SID>AddOption("display", gettext("include \"lastline\" to show the last line even if it doesn't fit\ninclude \"uhex\" to show unprintable characters as a hex number"))
-call <SID>OptionG("dy", &dy)
-call <SID>AddOption("fillchars", gettext("characters to use for the status line, folds, diffs,\nbuffer text, filler lines and truncation in the completion menu"))
-call <SID>OptionG("fcs", &fcs)
-call <SID>AddOption("cmdheight", gettext("number of lines used for the command-line"))
-call append("$", " \tset ch=" . &ch)
-call <SID>AddOption("columns", gettext("width of the display"))
-call append("$", " \tset co=" . &co)
-call <SID>AddOption("lines", gettext("number of lines in the display"))
-call append("$", " \tset lines=" . &lines)
-call <SID>AddOption("window", gettext("number of lines to scroll for CTRL-F and CTRL-B"))
-call append("$", " \tset window=" . &window)
-call <SID>AddOption("lazyredraw", gettext("don't redraw while executing macros"))
-call <SID>BinOptionG("lz", &lz)
-if has("reltime")
-  call <SID>AddOption("redrawtime", gettext("timeout for 'hlsearch' and :match highlighting in msec"))
-  call append("$", " \tset rdt=" . &rdt)
-endif
-call <SID>AddOption("writedelay", gettext("delay in msec for each char written to the display\n(for debugging)"))
-call append("$", " \tset wd=" . &wd)
-call <SID>AddOption("list", gettext("show <Tab> as ^I and end-of-line as $"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>BinOptionL("list")
-call <SID>AddOption("listchars", gettext("list of strings used for list mode"))
-call <SID>OptionG("lcs", &lcs)
-call <SID>AddOption("number", gettext("show the line number for each line"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>BinOptionL("nu")
-call <SID>AddOption("relativenumber", gettext("show the relative line number for each line"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>BinOptionL("rnu")
-if has("linebreak")
-  call <SID>AddOption("numberwidth", gettext("number of columns to use for the line number"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("nuw")
-endif
-if has("quickfix")
-  call <SID>AddOption("chistory", gettext("maximum number of quickfix lists that can be stored in history"))
-  call <SID>OptionL("chi")
-  call <SID>AddOption("lhistory", gettext("maximum number of location lists that can be stored in history"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("lhi")
-endif
-if has("conceal")
-  call <SID>AddOption("conceallevel", gettext("controls whether concealable text is hidden"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("cole")
-  call <SID>AddOption("concealcursor", gettext("modes in which text in the cursor line can be concealed"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("cocu")
-endif
-
-
-call <SID>Header(gettext("syntax, highlighting and spelling"))
-call <SID>AddOption("background", gettext("\"dark\" or \"light\"; the background color brightness"))
-call <SID>OptionG("bg", &bg)
-call <SID>AddOption("filetype", gettext("type of file; triggers the FileType event when set"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("ft")
-if has("syntax")
-  call <SID>AddOption("syntax", gettext("name of syntax highlighting used"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("syn")
-  call <SID>AddOption("synmaxcol", gettext("maximum column to look for syntax items"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("smc")
-endif
-call <SID>AddOption("highlight", gettext("which highlighting to use for various occasions"))
-call <SID>OptionG("hl", &hl)
-call <SID>AddOption("hlsearch", gettext("highlight all matches for the last used search pattern"))
-call <SID>BinOptionG("hls", &hls)
-if has("termguicolors")
-  call <SID>AddOption("termguicolors", gettext("use GUI colors for the terminal"))
-  call <SID>BinOptionG("tgc", &tgc)
-endif
-if has("syntax")
-  call <SID>AddOption("cursorcolumn", gettext("highlight the screen column of the cursor"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>BinOptionL("cuc")
-  call <SID>AddOption("cursorline", gettext("highlight the screen line of the cursor"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>BinOptionL("cul")
-  call <SID>AddOption("cursorlineopt", gettext("specifies which area 'cursorline' highlights"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("culopt")
-  call <SID>AddOption("colorcolumn", gettext("columns to highlight"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("cc")
-  call <SID>AddOption("spell", gettext("highlight spelling mistakes"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>BinOptionL("spell")
-  call <SID>AddOption("spelllang", gettext("list of accepted languages"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("spl")
-  call <SID>AddOption("spellfile", gettext("file that \"zg\" adds good words to"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("spf")
-  call <SID>AddOption("spellcapcheck", gettext("pattern to locate the end of a sentence"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("spc")
-  call <SID>AddOption("spelloptions", gettext("flags to change how spell checking works"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("spo")
-  call <SID>AddOption("spellsuggest", gettext("methods used to suggest corrections"))
-  call <SID>OptionG("sps", &sps)
-  call <SID>AddOption("mkspellmem", gettext("amount of memory used by :mkspell before compressing"))
-  call <SID>OptionG("msm", &msm)
-endif
-
-
-call <SID>Header(gettext("multiple windows"))
-call <SID>AddOption("laststatus", gettext("0, 1, 2 or 3; when to use a status line for the last window"))
-call append("$", " \tset ls=" . &ls)
-if has("statusline")
-  call <SID>AddOption("statuscolumn", gettext("custom format for the status column"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionG("stc", &stc)
-  call <SID>AddOption("statusline", gettext("alternate format to be used for a status line"))
-  call <SID>OptionG("stl", &stl)
-endif
-call append("$", "\t" .. s:local_to_window)
-call <SID>AddOption("equalalways", gettext("make all windows the same size when adding/removing windows"))
-call <SID>BinOptionG("ea", &ea)
-call <SID>AddOption("eadirection", gettext("in which direction 'equalalways' works: \"ver\", \"hor\" or \"both\""))
-call <SID>OptionG("ead", &ead)
-call <SID>AddOption("winheight", gettext("minimal number of lines used for the current window"))
-call append("$", " \tset wh=" . &wh)
-call <SID>AddOption("winminheight", gettext("minimal number of lines used for any window"))
-call append("$", " \tset wmh=" . &wmh)
-call <SID>AddOption("winfixbuf", gettext("keep window focused on a single buffer"))
-call <SID>OptionG("wfb", &wfb)
-call <SID>AddOption("winfixheight", gettext("keep the height of the window"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>BinOptionL("wfh")
-call <SID>AddOption("winfixwidth", gettext("keep the width of the window"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>BinOptionL("wfw")
-call <SID>AddOption("winwidth", gettext("minimal number of columns used for the current window"))
-call append("$", " \tset wiw=" . &wiw)
-call <SID>AddOption("winminwidth", gettext("minimal number of columns used for any window"))
-call append("$", " \tset wmw=" . &wmw)
-call <SID>AddOption("helpheight", gettext("initial height of the help window"))
-call append("$", " \tset hh=" . &hh)
-if has("quickfix")
-  " call <SID>AddOption("previewpopup", gettext("use a popup window for preview"))
-  " call append("$", " \tset pvp=" . &pvp)
-  call <SID>AddOption("previewheight", gettext("default height for the preview window"))
-  call append("$", " \tset pvh=" . &pvh)
-  call <SID>AddOption("previewwindow", gettext("identifies the preview window"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>BinOptionL("pvw")
-endif
-call <SID>AddOption("hidden", gettext("don't unload a buffer when no longer shown in a window"))
-call <SID>BinOptionG("hid", &hid)
-call <SID>AddOption("switchbuf", gettext("\"useopen\" and/or \"split\"; which window to use when jumping\nto a buffer"))
-call <SID>OptionG("swb", &swb)
-call <SID>AddOption("splitbelow", gettext("a new window is put below the current one"))
-call <SID>BinOptionG("sb", &sb)
-call <SID>AddOption("splitkeep", gettext("determines scroll behavior for split windows"))
-call <SID>OptionG("spk", &spk)
-call <SID>AddOption("splitright", gettext("a new window is put right of the current one"))
-call <SID>BinOptionG("spr", &spr)
-call <SID>AddOption("scrollbind", gettext("this window scrolls together with other bound windows"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>BinOptionL("scb")
-call <SID>AddOption("scrollopt", gettext("\"ver\", \"hor\" and/or \"jump\"; list of options for 'scrollbind'"))
-call <SID>OptionG("sbo", &sbo)
-call <SID>AddOption("cursorbind", gettext("this window's cursor moves together with other bound windows"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>BinOptionL("crb")
-if has("terminal")
-  call <SID>AddOption("termsize", gettext("size of a terminal window"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("tms")
-  call <SID>AddOption("termkey", gettext("key that precedes Vim commands in a terminal window"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("tk")
-endif
-
-
-call <SID>Header(gettext("multiple tab pages"))
-call <SID>AddOption("showtabline", gettext("0, 1 or 2; when to use a tab pages line"))
-call append("$", " \tset stal=" . &stal)
-call <SID>AddOption("tabclose", gettext("behaviour when closing tab pages: left, uselast or empty"))
-call append("$", " \tset tcl=" . &tcl)
-call <SID>AddOption("tabpagemax", gettext("maximum number of tab pages to open for -p and \"tab all\""))
-call append("$", " \tset tpm=" . &tpm)
-call <SID>AddOption("tabline", gettext("custom tab pages line"))
-call <SID>OptionG("tal", &tal)
-if has("gui")
-  call <SID>AddOption("guitablabel", gettext("custom tab page label for the GUI"))
-  call <SID>OptionG("gtl", &gtl)
-  call <SID>AddOption("guitabtooltip", gettext("custom tab page tooltip for the GUI"))
-  call <SID>OptionG("gtt", &gtt)
-endif
-
-
-call <SID>Header(gettext("terminal"))
-call <SID>AddOption("scrolljump", gettext("minimal number of lines to scroll at a time"))
-call append("$", " \tset sj=" . &sj)
-if has("gui") || has("msdos") || has("win32")
-  call <SID>AddOption("guicursor", gettext("specifies what the cursor looks like in different modes"))
-  call <SID>OptionG("gcr", &gcr)
-endif
-if has("title")
-  let &title = s:old_title
-  call <SID>AddOption("title", gettext("show info in the window title"))
-  call <SID>BinOptionG("title", &title)
-  set notitle
-  call <SID>AddOption("titlelen", gettext("percentage of 'columns' used for the window title"))
-  call append("$", " \tset titlelen=" . &titlelen)
-  call <SID>AddOption("titlestring", gettext("when not empty, string to be used for the window title"))
-  call <SID>OptionG("titlestring", &titlestring)
-  call <SID>AddOption("titleold", gettext("string to restore the title to when exiting Vim"))
-  call <SID>OptionG("titleold", &titleold)
-  let &icon = s:old_icon
-  call <SID>AddOption("icon", gettext("set the text of the icon for this window"))
-  call <SID>BinOptionG("icon", &icon)
-  set noicon
-  call <SID>AddOption("iconstring", gettext("when not empty, text for the icon of this window"))
-  call <SID>OptionG("iconstring", &iconstring)
-endif
-
-
-call <SID>Header(gettext("using the mouse"))
-call <SID>AddOption("mouse", gettext("list of flags for using the mouse"))
-call <SID>OptionG("mouse", &mouse)
-if has("gui")
-  call <SID>AddOption("mousefocus", gettext("the window with the mouse pointer becomes the current one"))
-  call <SID>BinOptionG("mousef", &mousef)
-  call <SID>AddOption("mousehide", gettext("hide the mouse pointer while typing"))
-  call <SID>BinOptionG("mh", &mh)
-endif
-call <SID>AddOption("mousemodel", gettext("\"extend\", \"popup\" or \"popup_setpos\"; what the right\nmouse button is used for"))
-call <SID>OptionG("mousem", &mousem)
-call <SID>AddOption("mousetime", gettext("maximum time in msec to recognize a double-click"))
-call append("$", " \tset mouset=" . &mouset)
-if has("mouseshape")
-  call <SID>AddOption("mouseshape", gettext("what the mouse pointer looks like in different modes"))
-  call <SID>OptionG("mouses", &mouses)
-endif
-
-
-if has("gui")
-  call <SID>Header(gettext("GUI"))
-  call <SID>AddOption("guifont", gettext("list of font names to be used in the GUI"))
-  call <SID>OptionG("gfn", &gfn)
-  if has("xfontset")
-    call <SID>AddOption("guifontset", gettext("pair of fonts to be used, for multibyte editing"))
-    call <SID>OptionG("gfs", &gfs)
-  endif
-  call <SID>AddOption("guifontwide", gettext("list of font names to be used for double-wide characters"))
-  call <SID>OptionG("gfw", &gfw)
-  call <SID>AddOption("guioptions", gettext("list of flags that specify how the GUI works"))
-  call <SID>OptionG("go", &go)
-  if has("gui_gtk")
-    call <SID>AddOption("toolbar", gettext("\"icons\", \"text\" and/or \"tooltips\"; how to show the toolbar"))
-    call <SID>OptionG("tb", &tb)
-    if has("gui_gtk2")
-      call <SID>AddOption("toolbariconsize", gettext("size of toolbar icons"))
-      call <SID>OptionG("tbis", &tbis)
-    endif
-  endif
-  if has("browse")
-    call <SID>AddOption("browsedir", gettext("\"last\", \"buffer\" or \"current\": which directory used for\nthe file browser"))
-    call <SID>OptionG("bsdir", &bsdir)
-  endif
-  if has("multi_lang")
-    call <SID>AddOption("langmenu", gettext("language to be used for the menus"))
-    call <SID>OptionG("langmenu", &lm)
-  endif
-  call <SID>AddOption("menuitems", gettext("maximum number of items in one menu"))
-  call append("$", " \tset mis=" . &mis)
-  if has("winaltkeys")
-    call <SID>AddOption("winaltkeys", gettext("\"no\", \"yes\" or \"menu\"; how to use the ALT key"))
-    call <SID>OptionG("wak", &wak)
-  endif
-  call <SID>AddOption("linespace", gettext("number of pixel lines to use between characters"))
-  call append("$", " \tset lsp=" . &lsp)
-  if has("balloon_eval") || has("balloon_eval_term")
-    call <SID>AddOption("balloondelay", gettext("delay in milliseconds before a balloon may pop up"))
-    call append("$", " \tset bdlay=" . &bdlay)
-    if has("balloon_eval")
-      call <SID>AddOption("ballooneval", gettext("use balloon evaluation in the GUI"))
-      call <SID>BinOptionG("beval", &beval)
-    endif
-    if has("balloon_eval_term")
-      call <SID>AddOption("balloonevalterm", gettext(" \nuse balloon evaluation in the terminal"))
-      call <SID>BinOptionG("bevalterm", &beval)
-    endif
-    if has("eval")
-      call <SID>AddOption("balloonexpr", gettext("expression to show in balloon eval"))
-      call append("$", " \tset bexpr=" . &bexpr)
-    endif
-  endif
-endif
-
-call <SID>Header(gettext("messages and info"))
-call <SID>AddOption("terse", gettext("add 's' flag in 'shortmess' (don't show search message)"))
-call <SID>BinOptionG("terse", &terse)
-call <SID>AddOption("shortmess", gettext("list of flags to make messages shorter"))
-call <SID>OptionG("shm", &shm)
-call <SID>AddOption("messagesopt", gettext("options for outputting messages"))
-call <SID>OptionG("mopt", &mopt)
-call <SID>AddOption("showcmd", gettext("show (partial) command keys in location given by 'showcmdloc'"))
-let &sc = s:old_sc
-call <SID>BinOptionG("sc", &sc)
-set nosc
-call <SID>AddOption("showcmdloc", gettext("location where to show the (partial) command keys for 'showcmd'"))
-  call <SID>OptionG("sloc", &sloc)
-call <SID>AddOption("showmode", gettext("display the current mode in the status line"))
-call <SID>BinOptionG("smd", &smd)
-call <SID>AddOption("ruler", gettext("show cursor position below each window"))
-let &ru = s:old_ru
-call <SID>BinOptionG("ru", &ru)
-set noru
-if has("statusline")
-  call <SID>AddOption("rulerformat", gettext("alternate format to be used for the ruler"))
-  call <SID>OptionG("ruf", &ruf)
-endif
-call <SID>AddOption("report", gettext("threshold for reporting number of changed lines"))
-call append("$", " \tset report=" . &report)
-call <SID>AddOption("verbose", gettext("the higher the more messages are given"))
-call append("$", " \tset vbs=" . &vbs)
-call <SID>AddOption("verbosefile", gettext("file to write messages in"))
-call <SID>OptionG("vfile", &vfile)
-call <SID>AddOption("more", gettext("pause listings when the screen is full"))
-call <SID>BinOptionG("more", &more)
-if has("dialog_con") || has("dialog_gui")
-  call <SID>AddOption("confirm", gettext("start a dialog when a command fails"))
-  call <SID>BinOptionG("cf", &cf)
-endif
-call <SID>AddOption("errorbells", gettext("ring the bell for error messages"))
-call <SID>BinOptionG("eb", &eb)
-call <SID>AddOption("visualbell", gettext("use a visual bell instead of beeping"))
-call <SID>BinOptionG("vb", &vb)
-call <SID>AddOption("belloff", gettext("do not ring the bell for these reasons"))
-call <SID>OptionG("belloff", &belloff)
-if has("multi_lang")
-  call <SID>AddOption("helplang", gettext("list of preferred languages for finding help"))
-  call <SID>OptionG("hlg", &hlg)
-endif
-
-
-call <SID>Header(gettext("selecting text"))
-call <SID>AddOption("selection", gettext("\"old\", \"inclusive\" or \"exclusive\"; how selecting text behaves"))
-call <SID>OptionG("sel", &sel)
-call <SID>AddOption("selectmode", gettext("\"mouse\", \"key\" and/or \"cmd\"; when to start Select mode\ninstead of Visual mode"))
-call <SID>OptionG("slm", &slm)
-if has("clipboard")
-  call <SID>AddOption("clipboard", gettext("\"unnamed\" to use the * register like unnamed register\n\"autoselect\" to always put selected text on the clipboard"))
-  call <SID>OptionG("cb", &cb)
-endif
-call <SID>AddOption("keymodel", gettext("\"startsel\" and/or \"stopsel\"; what special keys can do"))
-call <SID>OptionG("km", &km)
-
-
-call <SID>Header(gettext("editing text"))
-call <SID>AddOption("undolevels", gettext("maximum number of changes that can be undone"))
-call append("$", "\t" .. s:global_or_local)
-call append("$", " \tset ul=" . s:old_ul)
-call <SID>AddOption("undofile", gettext("automatically save and restore undo history"))
-call <SID>BinOptionG("udf", &udf)
-call <SID>AddOption("undodir", gettext("list of directories for undo files"))
-call <SID>OptionG("udir", &udir)
-call <SID>AddOption("undoreload", gettext("maximum number lines to save for undo on a buffer reload"))
-call append("$", " \tset ur=" . &ur)
-call <SID>AddOption("modified", gettext("changes have been made and not written to a file"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("mod")
-call <SID>AddOption("readonly", gettext("buffer is not to be written"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("ro")
-call <SID>AddOption("modifiable", gettext("changes to the text are possible"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("ma")
-call <SID>AddOption("textwidth", gettext("line length above which to break a line"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("tw")
-call <SID>AddOption("wrapmargin", gettext("margin from the right in which to break a line"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("wm")
-call <SID>AddOption("backspace", gettext("specifies what <BS>, CTRL-W, etc. can do in Insert mode"))
-call append("$", " \tset bs=" . &bs)
-call <SID>AddOption("comments", gettext("definition of what comment lines look like"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("com")
-call <SID>AddOption("formatoptions", gettext("list of flags that tell how automatic formatting works"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("fo")
-call <SID>AddOption("formatlistpat", gettext("pattern to recognize a numbered list"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("flp")
-if has("eval")
-  call <SID>AddOption("formatexpr", gettext("expression used for \"gq\" to format lines"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("fex")
-endif
-if has("insert_expand")
-  call <SID>AddOption("complete", gettext("specifies how Insert mode completion works for CTRL-N and CTRL-P"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("cpt")
-  call <SID>AddOption("autocomplete", gettext("automatic completion in insert mode"))
-  call append("$", "\t" .. s:global_or_local)
-  call <SID>BinOptionG("ac", &ac)
-  call <SID>AddOption("autocompletetimeout", gettext(" \ninitial decay timeout for 'autocomplete' algorithm"))
-  call append("$", " \tset act=" . &act)
-  call <SID>AddOption("completetimeout", gettext(" \ninitial decay timeout for CTRL-N and CTRL-P completion"))
-  call append("$", " \tset cto=" . &cto)
-  call <SID>AddOption("autocompletedelay", gettext(" \ndelay in msec before menu appears after typing"))
-  call append("$", " \tset acl=" . &acl)
-  call <SID>AddOption("completeopt", gettext("whether to use a popup menu for Insert mode completion"))
-  call <SID>OptionL("cot")
-  call <SID>AddOption("completeitemalign", gettext(" \npopup menu item align order"))
-  call <SID>OptionG("cia", &cia)
-  call <SID>AddOption("completefuzzycollect", gettext(" \nuse fuzzy collection for specific completion modes"))
-  call <SID>OptionL("cfc")
-  if exists("+completepopup")
-    call <SID>AddOption("completepopup", gettext("options for the Insert mode completion info popup"))
-    call <SID>OptionG("cpp", &cpp)
-  endif
-  call <SID>AddOption("pumheight", gettext("maximum height of the popup menu"))
-  call <SID>OptionG("ph", &ph)
-  call <SID>AddOption("pumwidth", gettext("minimum width of the popup menu"))
-  call <SID>OptionG("pw", &pw)
-  call <SID>AddOption("pummaxwidth", gettext("maximum width of the popup menu"))
-  call <SID>OptionG("pmw", &pmw)
-  call <SID>AddOption("completefunc", gettext("user defined function for Insert mode completion"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("cfu")
-  call <SID>AddOption("omnifunc", gettext("function for filetype-specific Insert mode completion"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("ofu")
-  call <SID>AddOption("dictionary", gettext("list of dictionary files for keyword completion"))
-  call append("$", "\t" .. s:global_or_local)
-  call <SID>OptionG("dict", &dict)
-  call <SID>AddOption("thesaurus", gettext("list of thesaurus files for keyword completion"))
-  call append("$", "\t" .. s:global_or_local)
-  call <SID>OptionG("tsr", &tsr)
-  call <SID>AddOption("thesaurusfunc", gettext("function used for thesaurus completion"))
-  call append("$", "\t" .. s:global_or_local)
-  call <SID>OptionG("tsrfu", &tsrfu)
-endif
-call <SID>AddOption("infercase", gettext("adjust case of a keyword completion match"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("inf")
-if has("digraphs")
-  call <SID>AddOption("digraph", gettext("enable entering digraphs with c1 <BS> c2"))
-  call <SID>BinOptionG("dg", &dg)
-endif
-call <SID>AddOption("tildeop", gettext("the \"~\" command behaves like an operator"))
-call <SID>BinOptionG("top", &top)
-call <SID>AddOption("operatorfunc", gettext("function called for the \"g@\" operator"))
-call <SID>OptionG("opfunc", &opfunc)
-call <SID>AddOption("showmatch", gettext("when inserting a bracket, briefly jump to its match"))
-call <SID>BinOptionG("sm", &sm)
-call <SID>AddOption("matchtime", gettext("tenth of a second to show a match for 'showmatch'"))
-call append("$", " \tset mat=" . &mat)
-call <SID>AddOption("matchpairs", gettext("list of pairs that match for the \"%\" command"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("mps")
-call <SID>AddOption("joinspaces", gettext("use two spaces after '.' when joining a line"))
-call <SID>BinOptionG("js", &js)
-call <SID>AddOption("nrformats", gettext("\"alpha\", \"octal\", \"hex\", \"bin\" and/or \"unsigned\"; number formats\nrecognized for CTRL-A and CTRL-X commands"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("nf")
-
-
-call <SID>Header(gettext("tabs and indenting"))
-call <SID>AddOption("tabstop", gettext("number of spaces a <Tab> in the text stands for"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("ts")
-call <SID>AddOption("shiftwidth", gettext("number of spaces used for each step of (auto)indent"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("sw")
-if has("vartabs")
-  call <SID>AddOption("vartabstop", gettext("list of number of spaces a tab counts for"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("vts")
-  call <SID>AddOption("varsofttabstop", gettext("list of number of spaces a soft tabsstop counts for"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("vsts")
-endif
-call <SID>AddOption("smarttab", gettext("a <Tab> in an indent inserts 'shiftwidth' spaces"))
-call <SID>BinOptionG("sta", &sta)
-call <SID>AddOption("softtabstop", gettext("if non-zero, number of spaces to insert for a <Tab>"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("sts")
-call <SID>AddOption("shiftround", gettext("round to 'shiftwidth' for \"<<\" and \">>\""))
-call <SID>BinOptionG("sr", &sr)
-call <SID>AddOption("expandtab", gettext("expand <Tab> to spaces in Insert mode"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("et")
-call <SID>AddOption("autoindent", gettext("automatically set the indent of a new line"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("ai")
-if has("smartindent")
-  call <SID>AddOption("smartindent", gettext("do clever autoindenting"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>BinOptionL("si")
-endif
-if has("cindent")
-  call <SID>AddOption("cindent", gettext("enable specific indenting for C code"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>BinOptionL("cin")
-  call <SID>AddOption("cinoptions", gettext("options for C-indenting"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("cino")
-  call <SID>AddOption("cinkeys", gettext("keys that trigger C-indenting in Insert mode"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("cink")
-  call <SID>AddOption("cinwords", gettext("list of words that cause more C-indent"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("cinw")
-  call <SID>AddOption("cinscopedecls", gettext("list of scope declaration names used by cino-g"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("cinsd")
-  call <SID>AddOption("indentexpr", gettext("expression used to obtain the indent of a line"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("inde")
-  call <SID>AddOption("indentkeys", gettext("keys that trigger indenting with 'indentexpr' in Insert mode"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("indk")
-endif
-call <SID>AddOption("copyindent", gettext("copy whitespace for indenting from previous line"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("ci")
-call <SID>AddOption("preserveindent", gettext("preserve kind of whitespace when changing indent"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("pi")
-if has("lispindent")
-  call <SID>AddOption("lisp", gettext("enable lisp mode"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>BinOptionL("lisp")
-  call <SID>AddOption("lispwords", gettext("words that change how lisp indenting works"))
-  call <SID>OptionL("lw")
-  call <SID>AddOption("lispoptions", gettext("options for Lisp indenting"))
-  call <SID>OptionL("lop")
-endif
-
-
-if has("folding")
-  call <SID>Header(gettext("folding"))
-  call <SID>AddOption("foldenable", gettext("unset to display all folds open"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>BinOptionL("fen")
-  call <SID>AddOption("foldlevel", gettext("folds with a level higher than this number will be closed"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("fdl")
-  call <SID>AddOption("foldlevelstart", gettext("value for 'foldlevel' when starting to edit a file"))
-  call append("$", " \tset fdls=" . &fdls)
-  call <SID>AddOption("foldcolumn", gettext("width of the column used to indicate folds"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("fdc")
-  call <SID>AddOption("foldtext", gettext("expression used to display the text of a closed fold"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("fdt")
-  call <SID>AddOption("foldclose", gettext("set to \"all\" to close a fold when the cursor leaves it"))
-  call <SID>OptionG("fcl", &fcl)
-  call <SID>AddOption("foldopen", gettext("specifies for which commands a fold will be opened"))
-  call <SID>OptionG("fdo", &fdo)
-  call <SID>AddOption("foldminlines", gettext("minimum number of screen lines for a fold to be closed"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("fml")
-  call <SID>AddOption("commentstring", gettext("template for comments; used to put the marker in"))
-  call <SID>OptionL("cms")
-  call <SID>AddOption("foldmethod", gettext("folding type: \"manual\", \"indent\", \"expr\", \"marker\",\n\"syntax\" or \"diff\""))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("fdm")
-  call <SID>AddOption("foldexpr", gettext("expression used when 'foldmethod' is \"expr\""))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("fde")
-  call <SID>AddOption("foldignore", gettext("used to ignore lines when 'foldmethod' is \"indent\""))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("fdi")
-  call <SID>AddOption("foldmarker", gettext("markers used when 'foldmethod' is \"marker\""))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("fmr")
-  call <SID>AddOption("foldnestmax", gettext("maximum fold depth for when 'foldmethod' is \"indent\" or \"syntax\""))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("fdn")
-endif
-
-
-if has("diff")
-  call <SID>Header(gettext("diff mode"))
-  call <SID>AddOption("diff", gettext("use diff mode for the current window"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>BinOptionL("diff")
-  call <SID>AddOption("diffopt", gettext("options for using diff mode"))
-  call <SID>OptionG("dip", &dip)
-  call <SID>AddOption("diffexpr", gettext("expression used to obtain a diff file"))
-  call <SID>OptionG("dex", &dex)
-  call <SID>AddOption("diffanchors", gettext("list of addresses for anchoring a diff"))
-  call append("$", "\t" .. s:global_or_local)
-  call <SID>OptionG("dia", &dia)
-  call <SID>AddOption("patchexpr", gettext("expression used to patch a file"))
-  call <SID>OptionG("pex", &pex)
-endif
-
-
-call <SID>Header(gettext("mapping"))
-call <SID>AddOption("maxmapdepth", gettext("maximum depth of mapping"))
-call append("$", " \tset mmd=" . &mmd)
-call <SID>AddOption("timeout", gettext("allow timing out halfway into a mapping"))
-call <SID>BinOptionG("to", &to)
-call <SID>AddOption("ttimeout", gettext("allow timing out halfway into a key code"))
-call <SID>BinOptionG("ttimeout", &ttimeout)
-call <SID>AddOption("timeoutlen", gettext("time in msec for 'timeout'"))
-call append("$", " \tset tm=" . &tm)
-call <SID>AddOption("ttimeoutlen", gettext("time in msec for 'ttimeout'"))
-call append("$", " \tset ttm=" . &ttm)
-
-
-call <SID>Header(gettext("reading and writing files"))
-call <SID>AddOption("modeline", gettext("enable using settings from modelines when reading a file"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("ml")
-call <SID>AddOption("modelineexpr", gettext("allow setting expression options from a modeline"))
-call <SID>BinOptionG("mle", &mle)
-call <SID>AddOption("modelines", gettext("number of lines to check for modelines"))
-call append("$", " \tset mls=" . &mls)
-call <SID>AddOption("binary", gettext("binary file editing"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("bin")
-call <SID>AddOption("endofline", gettext("last line in the file has an end-of-line"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("eol")
-call <SID>AddOption("endoffile", gettext("last line in the file followed by CTRL-Z"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("eof")
-call <SID>AddOption("fixendofline", gettext("fixes missing end-of-line at end of text file"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("fixeol")
-call <SID>AddOption("bomb", gettext("prepend a Byte Order Mark to the file"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("bomb")
-call <SID>AddOption("fileformat", gettext("end-of-line format: \"dos\", \"unix\" or \"mac\""))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("ff")
-call <SID>AddOption("fileformats", gettext("list of file formats to look for when editing a file"))
-call <SID>OptionG("ffs", &ffs)
-call <SID>AddOption("write", gettext("writing files is allowed"))
-call <SID>BinOptionG("write", &write)
-call <SID>AddOption("writebackup", gettext("write a backup file before overwriting a file"))
-call <SID>BinOptionG("wb", &wb)
-call <SID>AddOption("backup", gettext("keep a backup after overwriting a file"))
-call <SID>BinOptionG("bk", &bk)
-call <SID>AddOption("backupskip", gettext("patterns that specify for which files a backup is not made"))
-call append("$", " \tset bsk=" . &bsk)
-call <SID>AddOption("backupcopy", gettext("whether to make the backup as a copy or rename the existing file"))
-call append("$", "\t" .. s:global_or_local)
-call append("$", " \tset bkc=" . &bkc)
-call <SID>AddOption("backupdir", gettext("list of directories to put backup files in"))
-call <SID>OptionG("bdir", &bdir)
-call <SID>AddOption("backupext", gettext("file name extension for the backup file"))
-call <SID>OptionG("bex", &bex)
-call <SID>AddOption("autowrite", gettext("automatically write a file when leaving a modified buffer"))
-call <SID>BinOptionG("aw", &aw)
-call <SID>AddOption("autowriteall", gettext("as 'autowrite', but works with more commands"))
-call <SID>BinOptionG("awa", &awa)
-call <SID>AddOption("writeany", gettext("always write without asking for confirmation"))
-call <SID>BinOptionG("wa", &wa)
-call <SID>AddOption("autoread", gettext("automatically read a file when it was modified outside of Vim"))
-call append("$", "\t" .. s:global_or_local)
-call <SID>BinOptionG("ar", &ar)
-call <SID>AddOption("patchmode", gettext("keep oldest version of a file; specifies file name extension"))
-call <SID>OptionG("pm", &pm)
-call <SID>AddOption("fsync", gettext("forcibly sync the file to disk after writing it"))
-call <SID>BinOptionG("fs", &fs)
-
-
-call <SID>Header(gettext("the swap file"))
-call <SID>AddOption("directory", gettext("list of directories for the swap file"))
-call <SID>OptionG("dir", &dir)
-call <SID>AddOption("swapfile", gettext("use a swap file for this buffer"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("swf")
-call <SID>AddOption("updatecount", gettext("number of characters typed to cause a swap file update"))
-call append("$", " \tset uc=" . &uc)
-call <SID>AddOption("updatetime", gettext("time in msec after which the swap file will be updated"))
-call append("$", " \tset ut=" . &ut)
-
-
-call <SID>Header(gettext("command line editing"))
-call <SID>AddOption("history", gettext("how many command lines are remembered"))
-call append("$", " \tset hi=" . &hi)
-call <SID>AddOption("wildchar", gettext("key that triggers command-line expansion"))
-call append("$", " \tset wc=" . &wc)
-call <SID>AddOption("wildcharm", gettext("like 'wildchar' but can also be used in a mapping"))
-call append("$", " \tset wcm=" . &wcm)
-call <SID>AddOption("wildmode", gettext("specifies how command line completion works"))
-call <SID>OptionG("wim", &wim)
-if has("wildoptions")
-  call <SID>AddOption("wildoptions", gettext("empty or \"tagfile\" to list file name of matching tags"))
-  call <SID>OptionG("wop", &wop)
-endif
-call <SID>AddOption("suffixes", gettext("list of file name extensions that have a lower priority"))
-call <SID>OptionG("su", &su)
-if has("file_in_path")
-  call <SID>AddOption("suffixesadd", gettext("list of file name extensions added when searching for a file"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("sua")
-endif
-if has("wildignore")
-  call <SID>AddOption("wildignore", gettext("list of patterns to ignore files for file name completion"))
-  call <SID>OptionG("wig", &wig)
-endif
-call <SID>AddOption("fileignorecase", gettext("ignore case when using file names"))
-call <SID>BinOptionG("fic", &fic)
-call <SID>AddOption("wildignorecase", gettext("ignore case when completing file names"))
-call <SID>BinOptionG("wic", &wic)
-if has("wildmenu")
-  call <SID>AddOption("wildmenu", gettext("command-line completion shows a list of matches"))
-  call <SID>BinOptionG("wmnu", &wmnu)
-endif
-call <SID>AddOption("cedit", gettext("key used to open the command-line window"))
-call <SID>OptionG("cedit", &cedit)
-call <SID>AddOption("cmdwinheight", gettext("height of the command-line window"))
-call <SID>OptionG("cwh", &cwh)
-
-
-call <SID>Header(gettext("executing external commands"))
-call <SID>AddOption("shell", gettext("name of the shell program used for external commands"))
-call <SID>OptionG("sh", &sh)
-call <SID>AddOption("shellquote", gettext("character(s) to enclose a shell command in"))
-call <SID>OptionG("shq", &shq)
-call <SID>AddOption("shellxquote", gettext("like 'shellquote' but include the redirection"))
-call <SID>OptionG("sxq", &sxq)
-call <SID>AddOption("shellxescape", gettext("characters to escape when 'shellxquote' is ("))
-call <SID>OptionG("sxe", &sxe)
-call <SID>AddOption("shellcmdflag", gettext("argument for 'shell' to execute a command"))
-call <SID>OptionG("shcf", &shcf)
-call <SID>AddOption("shellredir", gettext("used to redirect command output to a file"))
-call <SID>OptionG("srr", &srr)
-call <SID>AddOption("shelltemp", gettext("use a temp file for shell commands instead of using a pipe"))
-call <SID>BinOptionG("stmp", &stmp)
-call <SID>AddOption("equalprg", gettext("program used for \"=\" command"))
-call append("$", "\t" .. s:global_or_local)
-call <SID>OptionG("ep", &ep)
-call <SID>AddOption("formatprg", gettext("program used to format lines with \"gq\" command"))
-call <SID>OptionG("fp", &fp)
-call <SID>AddOption("keywordprg", gettext("program used for the \"K\" command"))
-call <SID>OptionG("kp", &kp)
-call <SID>AddOption("warn", gettext("warn when using a shell command and a buffer has changes"))
-call <SID>BinOptionG("warn", &warn)
-
-
-if has("quickfix")
-  call <SID>Header(gettext("running make and jumping to errors (quickfix)"))
-  call <SID>AddOption("errorfile", gettext("name of the file that contains error messages"))
-  call <SID>OptionG("ef", &ef)
-  call <SID>AddOption("errorformat", gettext("list of formats for error messages"))
-  call append("$", "\t" .. s:global_or_local)
-  call <SID>OptionG("efm", &efm)
-  call <SID>AddOption("makeprg", gettext("program used for the \":make\" command"))
-  call append("$", "\t" .. s:global_or_local)
-  call <SID>OptionG("mp", &mp)
-  call <SID>AddOption("shellpipe", gettext("string used to put the output of \":make\" in the error file"))
-  call <SID>OptionG("sp", &sp)
-  call <SID>AddOption("makeef", gettext("name of the errorfile for the 'makeprg' command"))
-  call <SID>OptionG("mef", &mef)
-  call <SID>AddOption("grepprg", gettext("program used for the \":grep\" command"))
-  call append("$", "\t" .. s:global_or_local)
-  call <SID>OptionG("gp", &gp)
-  call <SID>AddOption("grepformat", gettext("list of formats for output of 'grepprg'"))
-  call <SID>OptionG("gfm", &gfm)
-  call <SID>AddOption("makeencoding", gettext("encoding of the \":make\" and \":grep\" output"))
-  call append("$", "\t" .. s:global_or_local)
-  call <SID>OptionG("menc", &menc)
-  call <SID>AddOption("quickfixtextfunc", gettext(" \nfunction to display text in the quickfix window"))
-  call <SID>OptionG("qftf", &qftf)
-endif
-
-
-if has("win32")
-  call <SID>Header(gettext("system specific"))
-  call <SID>AddOption("shellslash", gettext("use forward slashes in file names; for Unix-like shells"))
-  call <SID>BinOptionG("ssl", &ssl)
-  call <SID>AddOption("completeslash", gettext("specifies slash/backslash used for completion"))
-  call <SID>OptionG("csl", &csl)
-endif
-
-
-call <SID>Header(gettext("language specific"))
-call <SID>AddOption("isfname", gettext("specifies the characters in a file name"))
-call <SID>OptionG("isf", &isf)
-call <SID>AddOption("isident", gettext("specifies the characters in an identifier"))
-call <SID>OptionG("isi", &isi)
-call <SID>AddOption("isexpand", gettext("defines trigger strings for complete_match()"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>AddOption("iskeyword", gettext("specifies the characters in a keyword"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("isk")
-call <SID>AddOption("isprint", gettext("specifies printable characters"))
-call <SID>OptionG("isp", &isp)
-if has("textobjects")
-  call <SID>AddOption("quoteescape", gettext("specifies escape characters in a string"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("qe")
-endif
-if has("rightleft")
-  call <SID>AddOption("rightleft", gettext("display the buffer right-to-left"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>BinOptionL("rl")
-  call <SID>AddOption("rightleftcmd", gettext("when to edit the command-line right-to-left"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("rlc")
-  call <SID>AddOption("revins", gettext("insert characters backwards"))
-  call <SID>BinOptionG("ri", &ri)
-  call <SID>AddOption("allowrevins", gettext("allow CTRL-_ in Insert and Command-line mode to toggle 'revins'"))
-  call <SID>BinOptionG("ari", &ari)
-  call <SID>AddOption("aleph", gettext("the ASCII code for the first letter of the Hebrew alphabet"))
-  call append("$", " \tset al=" . &al)
-  call <SID>AddOption("hkmap", gettext("use Hebrew keyboard mapping"))
-  call <SID>BinOptionG("hk", &hk)
-  call <SID>AddOption("hkmapp", gettext("use phonetic Hebrew keyboard mapping"))
-  call <SID>BinOptionG("hkp", &hkp)
-endif
-if has("arabic")
-  call <SID>AddOption("arabic", gettext("prepare for editing Arabic text"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>BinOptionL("arab")
-  call <SID>AddOption("arabicshape", gettext("perform shaping of Arabic characters"))
-  call <SID>BinOptionG("arshape", &arshape)
-  call <SID>AddOption("termbidi", gettext("terminal will perform bidi handling"))
-  call <SID>BinOptionG("tbidi", &tbidi)
-endif
-if has("keymap")
-  call <SID>AddOption("keymap", gettext("name of a keyboard mapping"))
-  call <SID>OptionL("kmp")
-endif
-if has("langmap")
-  call <SID>AddOption("langmap", gettext("list of characters that are translated in Normal mode"))
-  call <SID>OptionG("lmap", &lmap)
-  call <SID>AddOption("langremap", gettext("apply 'langmap' to mapped characters"))
-  call <SID>BinOptionG("lrm", &lrm)
-endif
-if has("xim")
-  call <SID>AddOption("imdisable", gettext("when set never use IM; overrules following IM options"))
-  call <SID>BinOptionG("imd", &imd)
-endif
-call <SID>AddOption("iminsert", gettext("in Insert mode: 1: use :lmap; 2: use IM; 0: neither"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>OptionL("imi")
-call <SID>AddOption("imsearch", gettext("entering a search pattern: 1: use :lmap; 2: use IM; 0: neither"))
-call append("$", "\t" .. s:local_to_window)
-call <SID>OptionL("ims")
-if has("xim")
-  call <SID>AddOption("imcmdline", gettext("when set always use IM when starting to edit a command line"))
-  call <SID>BinOptionG("imc", &imc)
-  call <SID>AddOption("imstatusfunc", gettext("function to obtain IME status"))
-  call <SID>OptionG("imsf", &imsf)
-  call <SID>AddOption("imactivatefunc", gettext("function to enable/disable IME"))
-  call <SID>OptionG("imaf", &imaf)
-endif
-
-
-call <SID>Header(gettext("multi-byte characters"))
-call <SID>AddOption("encoding", gettext("character encoding used in Nvim: \"utf-8\""))
-call <SID>OptionG("enc", &enc)
-call <SID>AddOption("fileencoding", gettext("character encoding for the current file"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>OptionL("fenc")
-call <SID>AddOption("fileencodings", gettext("automatically detected character encodings"))
-call <SID>OptionG("fencs", &fencs)
-call <SID>AddOption("charconvert", gettext("expression used for character encoding conversion"))
-call <SID>OptionG("ccv", &ccv)
-call <SID>AddOption("delcombine", gettext("delete combining (composing) characters on their own"))
-call <SID>BinOptionG("deco", &deco)
-call <SID>AddOption("maxcombine", gettext("maximum number of combining (composing) characters displayed"))
-call <SID>OptionG("mco", &mco)
-if has("xim") && has("gui_gtk")
-  call <SID>AddOption("imactivatekey", gettext("key that activates the X input method"))
-  call <SID>OptionG("imak", &imak)
-endif
-call <SID>AddOption("ambiwidth", gettext("width of ambiguous width characters"))
-call <SID>OptionG("ambw", &ambw)
-call <SID>AddOption("emoji", gettext("emoji characters are full width"))
-call <SID>BinOptionG("emo", &emo)
-
-
-call <SID>Header(gettext("various"))
-call <SID>AddOption("virtualedit", gettext("when to use virtual editing: \"block\", \"insert\", \"all\"\nand/or \"onemore\""))
-call <SID>OptionG("ve", &ve)
-call <SID>AddOption("eventignore", gettext("list of autocommand events which are to be ignored"))
-call <SID>OptionG("ei", &ei)
-call <SID>AddOption("eventignorewin", gettext("list of autocommand events which are to be ignored in a window"))
-call <SID>OptionG("eiw", &eiw)
-call <SID>AddOption("loadplugins", gettext("load plugin scripts when starting up"))
-call <SID>BinOptionG("lpl", &lpl)
-call <SID>AddOption("exrc", gettext("enable reading .vimrc/.exrc/.gvimrc in the current directory"))
-call <SID>BinOptionG("ex", &ex)
-call <SID>AddOption("secure", gettext("safer working with script files in the current directory"))
-call <SID>BinOptionG("secure", &secure)
-call <SID>AddOption("gdefault", gettext("use the 'g' flag for \":substitute\""))
-call <SID>BinOptionG("gd", &gd)
-if exists("+opendevice")
-  call <SID>AddOption("opendevice", gettext("allow reading/writing devices"))
-  call <SID>BinOptionG("odev", &odev)
-endif
-if exists("+maxfuncdepth")
-  call <SID>AddOption("maxfuncdepth", gettext("maximum depth of function calls"))
-  call append("$", " \tset mfd=" . &mfd)
-endif
-if has("mksession")
-  call <SID>AddOption("sessionoptions", gettext("list of words that specifies what to put in a session file"))
-  call <SID>OptionG("ssop", &ssop)
-  call <SID>AddOption("viewoptions", gettext("list of words that specifies what to save for :mkview"))
-  call <SID>OptionG("vop", &vop)
-  call <SID>AddOption("viewdir", gettext("directory where to store files with :mkview"))
-  call <SID>OptionG("vdir", &vdir)
-endif
-if has("shada")
-  call <SID>AddOption("viminfo", gettext("list that specifies what to write in the ShaDa file"))
-  call <SID>OptionG("vi", &vi)
-endif
-if has("quickfix")
-  call <SID>AddOption("bufhidden", gettext("what happens with a buffer when it's no longer in a window"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("bh")
-  call <SID>AddOption("buftype", gettext("empty, \"nofile\", \"nowrite\", \"quickfix\", etc.: type of buffer"))
-  call append("$", "\t" .. s:local_to_buffer)
-  call <SID>OptionL("bt")
-endif
-call <SID>AddOption("buflisted", gettext("whether the buffer shows up in the buffer list"))
-call append("$", "\t" .. s:local_to_buffer)
-call <SID>BinOptionL("bl")
-call <SID>AddOption("debug", gettext("set to \"msg\" to see all error messages"))
-call append("$", " \tset debug=" . &debug)
-if has("signs")
-  call <SID>AddOption("signcolumn", gettext("whether to show the signcolumn"))
-  call append("$", "\t" .. s:local_to_window)
-  call <SID>OptionL("scl")
-endif
-
-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
-if exists("&mzschemedll")
-  call <SID>AddOption("mzschemedll", gettext("name of the MzScheme dynamic library"))
-  call <SID>OptionG("mzschemedll", &mzschemedll)
-  call <SID>AddOption("mzschemegcdll", gettext("name of the MzScheme GC dynamic library"))
-  call <SID>OptionG("mzschemegcdll", &mzschemegcdll)
-endif
-if has('pythonx')
-  call <SID>AddOption("pyxversion", gettext("whether to use Python 2 or 3"))
-  call append("$", " \tset pyx=" . &wd)
-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
-
-func <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
-endfunc
-
-" 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
-let &ul = s:old_ul
-unlet s:old_title s:old_icon s:old_ru s:old_sc s:cpo_save s:idx s:lnum s:old_ul
-
-" vim: ts=8 sw=2 sts=2
diff --git a/runtime/scripts/optwin.lua b/runtime/scripts/optwin.lua
@@ -0,0 +1,713 @@
+---@param x string
+---@return string
+local function N_(x)
+  return vim.fn.gettext(x)
+end
+
+---@type {header:string,[integer]:[string,string]}[]
+local options_list = {
+  {
+    header = N_ 'important',
+    { 'cpoptions', N_ 'list of flags to specify Vi compatibility' },
+    { 'runtimepath', N_ 'list of directories used for runtime files and plugins' },
+    { 'packpath', N_ 'list of directories used for plugin packages' },
+    { 'helpfile', N_ 'name of the main help file' },
+  },
+  {
+    header = N_ 'moving around, searching and patterns',
+    { 'whichwrap', N_ 'list of flags specifying which commands wrap to another line' },
+    {
+      'startofline',
+      N_ 'many jump commands move the cursor to the first non-blank\ncharacter of a line',
+    },
+    { 'paragraphs', N_ 'nroff macro names that separate paragraphs' },
+    { 'sections', N_ 'nroff macro names that separate sections' },
+    { 'path', N_ 'list of directory names used for file searching' },
+    { 'findfunc', N_ 'function called for :find' },
+    { 'cdhome', N_ ':cd without argument goes to the home directory' },
+    { 'cdpath', N_ 'list of directory names used for :cd' },
+    { 'autochdir', N_ 'change to directory of file in buffer' },
+    { 'wrapscan', N_ 'search commands wrap around the end of the buffer' },
+    { 'incsearch', N_ 'show match for partly typed search command' },
+    { 'magic', N_ 'change the way backslashes are used in search patterns' },
+    { 'regexpengine', N_ 'select the default regexp engine used' },
+    { 'ignorecase', N_ 'ignore case when using a search pattern' },
+    { 'smartcase', N_ "override 'ignorecase' when pattern has upper case characters" },
+    { 'maxsearchcount', N_ 'maximum number for the search count feature' },
+    { 'casemap', N_ 'what method to use for changing case of letters' },
+    { 'maxmempattern', N_ 'maximum amount of memory in Kbyte used for pattern matching' },
+    { 'define', N_ 'pattern for a macro definition line' },
+    { 'include', N_ 'pattern for an include-file line' },
+    { 'includeexpr', N_ 'expression used to transform an include line to a file name' },
+    { 'jumpoptions', N_ 'controls the behavior of the jumplist' },
+  },
+  {
+    header = N_ 'tags',
+    { 'tagbsearch', N_ 'use binary searching in tags files' },
+    { 'taglength', N_ 'number of significant characters in a tag name or zero' },
+    { 'tags', N_ 'list of file names to search for tags' },
+    {
+      'tagcase',
+      N_ 'how to handle case when searching in tags files:\n"followic" to follow \'ignorecase\', "ignore" or "match"',
+    },
+    { 'tagrelative', N_ 'file names in a tags file are relative to the tags file' },
+    { 'tagstack', N_ 'a :tag command will use the tagstack' },
+    { 'showfulltag', N_ 'when completing tags in Insert mode show more info' },
+    { 'tagfunc', N_ 'a function to be used to perform tag searches' },
+  },
+  {
+    header = N_ 'displaying text',
+    { 'scroll', N_ 'number of lines to scroll for CTRL-U and CTRL-D' },
+    { 'smoothscroll', N_ 'scroll by screen line' },
+    { 'scrolloff', N_ 'number of screen lines to show around the cursor' },
+    { 'wrap', N_ 'long lines wrap' },
+    { 'linebreak', N_ "wrap long lines at a character in 'breakat'" },
+    { 'breakindent', N_ 'preserve indentation in wrapped text' },
+    { 'breakindentopt', N_ 'adjust breakindent behaviour' },
+    { 'breakat', N_ 'which characters might cause a line break' },
+    { 'showbreak', N_ 'string to put before wrapped screen lines' },
+    { 'sidescroll', N_ 'minimal number of columns to scroll horizontally' },
+    { 'sidescrolloff', N_ 'minimal number of columns to keep left and right of the cursor' },
+    {
+      'display',
+      N_ 'include "lastline" to show the last line even if it doesn\'t fit\ninclude "uhex" to show unprintable characters as a hex number',
+    },
+    {
+      'fillchars',
+      N_ 'characters to use for the status line, folds, diffs,\nbuffer text, filler lines and truncation in the completion menu',
+    },
+    { 'cmdheight', N_ 'number of lines used for the command-line' },
+    { 'columns', N_ 'width of the display' },
+    { 'lines', N_ 'number of lines in the display' },
+    { 'window', N_ 'number of lines to scroll for CTRL-F and CTRL-B' },
+    { 'lazyredraw', N_ "don't redraw while executing macros" },
+    { 'redrawtime', N_ "timeout for 'hlsearch' and :match highlighting in msec" },
+    { 'writedelay', N_ 'delay in msec for each char written to the display' },
+    { 'redrawdebug', N_ 'change the way redrawing works (debug)' },
+    { 'list', N_ 'show <Tab> as ^I and end-of-line as $' },
+    { 'listchars', N_ 'list of strings used for list mode' },
+    { 'number', N_ 'show the line number for each line' },
+    { 'relativenumber', N_ 'show the relative line number for each line' },
+    { 'numberwidth', N_ 'number of columns to use for the line number' },
+    { 'chistory', N_ 'maximum number of quickfix lists that can be stored in history' },
+    { 'lhistory', N_ 'maximum number of location lists that can be stored in history' },
+    { 'conceallevel', N_ 'controls whether concealable text is hidden' },
+    { 'concealcursor', N_ 'modes in which text in the cursor line can be concealed' },
+  },
+  {
+    header = N_ 'syntax, highlighting and spelling',
+    { 'background', N_ '"dark" or "light"; the background color brightness' },
+    { 'filetype', N_ 'type of file; triggers the FileType event when set' },
+    { 'syntax', N_ 'name of syntax highlighting used' },
+    { 'synmaxcol', N_ 'maximum column to look for syntax items' },
+    { 'hlsearch', N_ 'highlight all matches for the last used search pattern' },
+    { 'termguicolors', N_ 'use GUI colors for the terminal' },
+    { 'cursorcolumn', N_ 'highlight the screen column of the cursor' },
+    { 'cursorline', N_ 'highlight the screen line of the cursor' },
+    { 'cursorlineopt', N_ "specifies which area 'cursorline' highlights" },
+    { 'colorcolumn', N_ 'columns to highlight' },
+    { 'spell', N_ 'highlight spelling mistakes' },
+    { 'spelllang', N_ 'list of accepted languages' },
+    { 'spellfile', N_ 'file that "zg" adds good words to' },
+    { 'spellcapcheck', N_ 'pattern to locate the end of a sentence' },
+    { 'spelloptions', N_ 'flags to change how spell checking works' },
+    { 'spellsuggest', N_ 'methods used to suggest corrections' },
+    { 'mkspellmem', N_ 'amount of memory used by :mkspell before compressing' },
+    { 'winhighlight', N_ 'override highlighting-groups window-locally' },
+  },
+  {
+    header = N_ 'multiple windows',
+    { 'laststatus', N_ '0, 1, 2 or 3; when to use a status line for the last window' },
+    { 'statuscolumn', N_ 'custom format for the status column' },
+    { 'statusline', N_ 'alternate format to be used for a status line' },
+    { 'equalalways', N_ 'make all windows the same size when adding/removing windows' },
+    { 'eadirection', N_ 'in which direction \'equalalways\' works: "ver", "hor" or "both"' },
+    { 'winheight', N_ 'minimal number of lines used for the current window' },
+    { 'winminheight', N_ 'minimal number of lines used for any window' },
+    { 'winfixbuf', N_ 'keep window focused on a single buffer' },
+    { 'winfixheight', N_ 'keep the height of the window' },
+    { 'winfixwidth', N_ 'keep the width of the window' },
+    { 'winwidth', N_ 'minimal number of columns used for the current window' },
+    { 'winminwidth', N_ 'minimal number of columns used for any window' },
+    { 'helpheight', N_ 'initial height of the help window' },
+    { 'previewheight', N_ 'default height for the preview window' },
+    { 'previewwindow', N_ 'identifies the preview window' },
+    { 'winbar', N_ 'custom format for the window bar' },
+    { 'winborder', N_ 'border of floating window' },
+    { 'winblend', N_ 'transparency level for floating windows' },
+    { 'hidden', N_ "don't unload a buffer when no longer shown in a window" },
+    { 'switchbuf', N_ '"useopen" and/or "split"; which window to use when jumping\nto a buffer' },
+    { 'splitbelow', N_ 'a new window is put below the current one' },
+    { 'splitkeep', N_ 'determines scroll behavior for split windows' },
+    { 'splitright', N_ 'a new window is put right of the current one' },
+    { 'scrollbind', N_ 'this window scrolls together with other bound windows' },
+    { 'scrollopt', N_ '"ver", "hor" and/or "jump"; list of options for \'scrollbind\'' },
+    { 'cursorbind', N_ "this window's cursor moves together with other bound windows" },
+  },
+  {
+    header = N_ 'multiple tab pages',
+    { 'showtabline', N_ '0, 1 or 2; when to use a tab pages line' },
+    { 'tabclose', N_ 'behaviour when closing tab pages: left, uselast or empty' },
+    { 'tabpagemax', N_ 'maximum number of tab pages to open for -p and "tab all"' },
+    { 'tabline', N_ 'custom tab pages line' },
+  },
+  {
+    header = N_ 'terminal',
+    { 'scrolljump', N_ 'minimal number of lines to scroll at a time' },
+    { 'guicursor', N_ 'specifies what the cursor looks like in different modes' },
+    { 'title', N_ 'show info in the window title' },
+    { 'titlelen', N_ "percentage of 'columns' used for the window title" },
+    { 'titlestring', N_ 'when not empty, string to be used for the window title' },
+    { 'titleold', N_ 'string to restore the title to when exiting Vim' },
+    { 'icon', N_ 'set the text of the icon for this window' },
+    { 'iconstring', N_ 'when not empty, text for the icon of this window' },
+  },
+  {
+    header = N_ 'using the mouse',
+    { 'mouse', N_ 'list of flags for using the mouse' },
+    { 'mousescroll', N_ 'amount to scroll by when scrolling with a mouse' },
+    { 'mousefocus', N_ 'the window with the mouse pointer becomes the current one' },
+    { 'mousehide', N_ 'hide the mouse pointer while typing' },
+    {
+      'mousemodel',
+      N_ '"extend", "popup" or "popup_setpos"; what the right\nmouse button is used for',
+    },
+    { 'mousetime', N_ 'maximum time in msec to recognize a double-click' },
+    { 'mousemoveevent', N_ 'deliver mouse move events to input queue' },
+  },
+  {
+    header = N_ 'GUI',
+    { 'guifont', N_ 'list of font names to be used in the GUI' },
+    { 'guifontwide', N_ 'list of font names to be used for double-wide characters' },
+    { 'browsedir', N_ '"last", "buffer" or "current": which directory used for\nthe file browser' },
+    { 'langmenu', N_ 'language to be used for the menus' },
+    { 'menuitems', N_ 'maximum number of items in one menu' },
+    { 'winaltkeys', N_ '"no", "yes" or "menu"; how to use the ALT key' },
+    { 'linespace', N_ 'number of pixel lines to use between characters' },
+    { 'termsync', N_ 'synchronize redraw output with the host terminal' },
+  },
+  {
+    header = N_ 'messages and info',
+    { 'shortmess', N_ 'list of flags to make messages shorter' },
+    { 'messagesopt', N_ 'options for outputting messages' },
+    { 'showcmd', N_ "show (partial) command keys in location given by 'showcmdloc'" },
+    { 'showcmdloc', N_ "location where to show the (partial) command keys for 'showcmd'" },
+    { 'showmode', N_ 'display the current mode in the status line' },
+    { 'ruler', N_ 'show cursor position below each window' },
+    { 'rulerformat', N_ 'alternate format to be used for the ruler' },
+    { 'report', N_ 'threshold for reporting number of changed lines' },
+    { 'verbose', N_ 'the higher the more messages are given' },
+    { 'verbosefile', N_ 'file to write messages in' },
+    { 'more', N_ 'pause listings when the screen is full' },
+    { 'confirm', N_ 'start a dialog when a command fails' },
+    { 'errorbells', N_ 'ring the bell for error messages' },
+    { 'visualbell', N_ 'use a visual bell instead of beeping' },
+    { 'belloff', N_ 'do not ring the bell for these reasons' },
+    { 'helplang', N_ 'list of preferred languages for finding help' },
+  },
+  {
+    header = N_ 'selecting text',
+    { 'selection', N_ '"old", "inclusive" or "exclusive"; how selecting text behaves' },
+    {
+      'selectmode',
+      N_ '"mouse", "key" and/or "cmd"; when to start Select mode\ninstead of Visual mode',
+    },
+    {
+      'clipboard',
+      N_ '"unnamed" to use the * register like unnamed register\n"autoselect" to always put selected text on the clipboard',
+    },
+    { 'keymodel', N_ '"startsel" and/or "stopsel"; what special keys can do' },
+  },
+  {
+    header = N_ 'editing text',
+    { 'undolevels', N_ 'maximum number of changes that can be undone' },
+    { 'undofile', N_ 'automatically save and restore undo history' },
+    { 'undodir', N_ 'list of directories for undo files' },
+    { 'undoreload', N_ 'maximum number lines to save for undo on a buffer reload' },
+    { 'modified', N_ 'changes have been made and not written to a file' },
+    { 'readonly', N_ 'buffer is not to be written' },
+    { 'modifiable', N_ 'changes to the text are possible' },
+    { 'textwidth', N_ 'line length above which to break a line' },
+    { 'wrapmargin', N_ 'margin from the right in which to break a line' },
+    { 'backspace', N_ 'specifies what <BS>, CTRL-W, etc. can do in Insert mode' },
+    { 'comments', N_ 'definition of what comment lines look like' },
+    { 'formatoptions', N_ 'list of flags that tell how automatic formatting works' },
+    { 'formatlistpat', N_ 'pattern to recognize a numbered list' },
+    { 'formatexpr', N_ 'expression used for "gq" to format lines' },
+    { 'complete', N_ 'specifies how Insert mode completion works for CTRL-N and CTRL-P' },
+    { 'autocomplete', N_ 'automatic completion in insert mode' },
+    { 'autocompletetimeout', N_ "initial decay timeout for 'autocomplete' algorithm" },
+    { 'completetimeout', N_ 'initial decay timeout for CTRL-N and CTRL-P completion' },
+    { 'autocompletedelay', N_ 'delay in msec before menu appears after typing' },
+    { 'completeopt', N_ 'whether to use a popup menu for Insert mode completion' },
+    { 'completeitemalign', N_ 'popup menu item align order' },
+    { 'completefuzzycollect', N_ 'use fuzzy collection for specific completion modes' },
+    { 'pumheight', N_ 'maximum height of the popup menu' },
+    { 'pumwidth', N_ 'minimum width of the popup menu' },
+    { 'pummaxwidth', N_ 'maximum width of the popup menu' },
+    { 'pumblend', N_ 'transparency level of popup menu' },
+    { 'pumborder', N_ 'border of popupmenu' },
+    { 'completefunc', N_ 'user defined function for Insert mode completion' },
+    { 'omnifunc', N_ 'function for filetype-specific Insert mode completion' },
+    { 'dictionary', N_ 'list of dictionary files for keyword completion' },
+    { 'thesaurus', N_ 'list of thesaurus files for keyword completion' },
+    { 'thesaurusfunc', N_ 'function used for thesaurus completion' },
+    { 'infercase', N_ 'adjust case of a keyword completion match' },
+    { 'digraph', N_ 'enable entering digraphs with c1 <BS> c2' },
+    { 'tildeop', N_ 'the "~" command behaves like an operator' },
+    { 'operatorfunc', N_ 'function called for the "g@" operator' },
+    { 'showmatch', N_ 'when inserting a bracket, briefly jump to its match' },
+    { 'matchtime', N_ "tenth of a second to show a match for 'showmatch'" },
+    { 'matchpairs', N_ 'list of pairs that match for the "%" command' },
+    { 'joinspaces', N_ "use two spaces after '.' when joining a line" },
+    {
+      'nrformats',
+      N_ '"alpha", "octal", "hex", "bin" and/or "unsigned"; number formats\nrecognized for CTRL-A and CTRL-X commands',
+    },
+  },
+  {
+    header = N_ 'tabs and indenting',
+    { 'tabstop', N_ 'number of spaces a <Tab> in the text stands for' },
+    { 'shiftwidth', N_ 'number of spaces used for each step of (auto)indent' },
+    { 'vartabstop', N_ 'list of number of spaces a tab counts for' },
+    { 'varsofttabstop', N_ 'list of number of spaces a soft tabsstop counts for' },
+    { 'smarttab', N_ "a <Tab> in an indent inserts 'shiftwidth' spaces" },
+    { 'softtabstop', N_ 'if non-zero, number of spaces to insert for a <Tab>' },
+    { 'shiftround', N_ 'round to \'shiftwidth\' for "<<" and ">>"' },
+    { 'expandtab', N_ 'expand <Tab> to spaces in Insert mode' },
+    { 'autoindent', N_ 'automatically set the indent of a new line' },
+    { 'smartindent', N_ 'do clever autoindenting' },
+    { 'cindent', N_ 'enable specific indenting for C code' },
+    { 'cinoptions', N_ 'options for C-indenting' },
+    { 'cinkeys', N_ 'keys that trigger C-indenting in Insert mode' },
+    { 'cinwords', N_ 'list of words that cause more C-indent' },
+    { 'cinscopedecls', N_ 'list of scope declaration names used by cino-g' },
+    { 'indentexpr', N_ 'expression used to obtain the indent of a line' },
+    { 'indentkeys', N_ "keys that trigger indenting with 'indentexpr' in Insert mode" },
+    { 'copyindent', N_ 'copy whitespace for indenting from previous line' },
+    { 'preserveindent', N_ 'preserve kind of whitespace when changing indent' },
+    { 'lisp', N_ 'enable lisp mode' },
+    { 'lispwords', N_ 'words that change how lisp indenting works' },
+    { 'lispoptions', N_ 'options for Lisp indenting' },
+  },
+  {
+    header = N_ 'folding',
+    { 'foldenable', N_ 'unset to display all folds open' },
+    { 'foldlevel', N_ 'folds with a level higher than this number will be closed' },
+    { 'foldlevelstart', N_ "value for 'foldlevel' when starting to edit a file" },
+    { 'foldcolumn', N_ 'width of the column used to indicate folds' },
+    { 'foldtext', N_ 'expression used to display the text of a closed fold' },
+    { 'foldclose', N_ 'set to "all" to close a fold when the cursor leaves it' },
+    { 'foldopen', N_ 'specifies for which commands a fold will be opened' },
+    { 'foldminlines', N_ 'minimum number of screen lines for a fold to be closed' },
+    { 'commentstring', N_ 'template for comments; used to put the marker in' },
+    { 'foldmethod', N_ 'folding type: "manual", "indent", "expr", "marker",\n"syntax" or "diff"' },
+    { 'foldexpr', N_ 'expression used when \'foldmethod\' is "expr"' },
+    { 'foldignore', N_ 'used to ignore lines when \'foldmethod\' is "indent"' },
+    { 'foldmarker', N_ 'markers used when \'foldmethod\' is "marker"' },
+    { 'foldnestmax', N_ 'maximum fold depth for when \'foldmethod\' is "indent" or "syntax"' },
+  },
+  {
+    header = N_ 'diff mode',
+    { 'diff', N_ 'use diff mode for the current window' },
+    { 'diffopt', N_ 'options for using diff mode' },
+    { 'diffexpr', N_ 'expression used to obtain a diff file' },
+    { 'diffanchors', N_ 'list of addresses for anchoring a diff' },
+    { 'patchexpr', N_ 'expression used to patch a file' },
+  },
+  {
+    header = N_ 'mapping',
+    { 'maxmapdepth', N_ 'maximum depth of mapping' },
+    { 'timeout', N_ 'allow timing out halfway into a mapping' },
+    { 'ttimeout', N_ 'allow timing out halfway into a key code' },
+    { 'timeoutlen', N_ "time in msec for 'timeout'" },
+    { 'ttimeoutlen', N_ "time in msec for 'ttimeout'" },
+  },
+  {
+    header = N_ 'reading and writing files',
+    { 'modeline', N_ 'enable using settings from modelines when reading a file' },
+    { 'modelineexpr', N_ 'allow setting expression options from a modeline' },
+    { 'modelines', N_ 'number of lines to check for modelines' },
+    { 'binary', N_ 'binary file editing' },
+    { 'endofline', N_ 'last line in the file has an end-of-line' },
+    { 'endoffile', N_ 'last line in the file followed by CTRL-Z' },
+    { 'fixendofline', N_ 'fixes missing end-of-line at end of text file' },
+    { 'bomb', N_ 'prepend a Byte Order Mark to the file' },
+    { 'fileformat', N_ 'end-of-line format: "dos", "unix" or "mac"' },
+    { 'fileformats', N_ 'list of file formats to look for when editing a file' },
+    { 'write', N_ 'writing files is allowed' },
+    { 'writebackup', N_ 'write a backup file before overwriting a file' },
+    { 'backup', N_ 'keep a backup after overwriting a file' },
+    { 'backupskip', N_ 'patterns that specify for which files a backup is not made' },
+    { 'backupcopy', N_ 'whether to make the backup as a copy or rename the existing file' },
+    { 'backupdir', N_ 'list of directories to put backup files in' },
+    { 'backupext', N_ 'file name extension for the backup file' },
+    { 'autowrite', N_ 'automatically write a file when leaving a modified buffer' },
+    { 'autowriteall', N_ "as 'autowrite', but works with more commands" },
+    { 'writeany', N_ 'always write without asking for confirmation' },
+    { 'autoread', N_ 'automatically read a file when it was modified outside of Vim' },
+    { 'patchmode', N_ 'keep oldest version of a file; specifies file name extension' },
+    { 'fsync', N_ 'forcibly sync the file to disk after writing it' },
+  },
+  {
+    header = N_ 'the swap file',
+    { 'directory', N_ 'list of directories for the swap file' },
+    { 'swapfile', N_ 'use a swap file for this buffer' },
+    { 'updatecount', N_ 'number of characters typed to cause a swap file update' },
+    { 'updatetime', N_ 'time in msec after which the swap file will be updated' },
+  },
+  {
+    header = N_ 'command line editing',
+    { 'history', N_ 'how many command lines are remembered' },
+    { 'wildchar', N_ 'key that triggers command-line expansion' },
+    { 'wildcharm', N_ "like 'wildchar' but can also be used in a mapping" },
+    { 'wildmode', N_ 'specifies how command line completion works' },
+    { 'wildoptions', N_ 'empty or "tagfile" to list file name of matching tags' },
+    { 'suffixes', N_ 'list of file name extensions that have a lower priority' },
+    { 'suffixesadd', N_ 'list of file name extensions added when searching for a file' },
+    { 'wildignore', N_ 'list of patterns to ignore files for file name completion' },
+    { 'fileignorecase', N_ 'ignore case when using file names' },
+    { 'wildignorecase', N_ 'ignore case when completing file names' },
+    { 'wildmenu', N_ 'command-line completion shows a list of matches' },
+    { 'cedit', N_ 'key used to open the command-line window' },
+    { 'cmdwinheight', N_ 'height of the command-line window' },
+  },
+  {
+    header = N_ 'executing external commands',
+    { 'shell', N_ 'name of the shell program used for external commands' },
+    { 'shellquote', N_ 'character(s) to enclose a shell command in' },
+    { 'shellxquote', N_ "like 'shellquote' but include the redirection" },
+    { 'shellxescape', N_ "characters to escape when 'shellxquote' is (" },
+    { 'shellcmdflag', N_ "argument for 'shell' to execute a command" },
+    { 'shellredir', N_ 'used to redirect command output to a file' },
+    { 'shelltemp', N_ 'use a temp file for shell commands instead of using a pipe' },
+    { 'equalprg', N_ 'program used for "=" command' },
+    { 'formatprg', N_ 'program used to format lines with "gq" command' },
+    { 'keywordprg', N_ 'program used for the "K" command' },
+    { 'warn', N_ 'warn when using a shell command and a buffer has changes' },
+  },
+  {
+    header = N_ 'running make and jumping to errors (quickfix)',
+    { 'errorfile', N_ 'name of the file that contains error messages' },
+    { 'errorformat', N_ 'list of formats for error messages' },
+    { 'makeprg', N_ 'program used for the ":make" command' },
+    { 'shellpipe', N_ 'string used to put the output of ":make" in the error file' },
+    { 'makeef', N_ "name of the errorfile for the 'makeprg' command" },
+    { 'grepprg', N_ 'program used for the ":grep" command' },
+    { 'grepformat', N_ "list of formats for output of 'grepprg'" },
+    { 'makeencoding', N_ 'encoding of the ":make" and ":grep" output' },
+    { 'quickfixtextfunc', N_ 'function to display text in the quickfix window' },
+  },
+  {
+    header = N_ 'system specific',
+    { 'shellslash', N_ 'use forward slashes in file names; for Unix-like shells' },
+    { 'completeslash', N_ 'specifies slash/backslash used for completion' },
+  },
+  {
+    header = N_ 'language specific',
+    { 'isfname', N_ 'specifies the characters in a file name' },
+    { 'isident', N_ 'specifies the characters in an identifier' },
+    { 'isexpand', N_ 'defines trigger strings for complete_match()' },
+    { 'iskeyword', N_ 'specifies the characters in a keyword' },
+    { 'isprint', N_ 'specifies printable characters' },
+    { 'quoteescape', N_ 'specifies escape characters in a string' },
+    { 'rightleft', N_ 'display the buffer right-to-left' },
+    { 'rightleftcmd', N_ 'when to edit the command-line right-to-left' },
+    { 'revins', N_ 'insert characters backwards' },
+    { 'allowrevins', N_ "allow CTRL-_ in Insert and Command-line mode to toggle 'revins'" },
+    { 'arabic', N_ 'prepare for editing Arabic text' },
+    { 'arabicshape', N_ 'perform shaping of Arabic characters' },
+    { 'termbidi', N_ 'terminal will perform bidi handling' },
+    { 'keymap', N_ 'name of a keyboard mapping' },
+    { 'langmap', N_ 'list of characters that are translated in Normal mode' },
+    { 'langremap', N_ "apply 'langmap' to mapped characters" },
+    { 'iminsert', N_ 'in Insert mode: 1: use :lmap; 2: use IM; 0: neither' },
+    { 'imsearch', N_ 'entering a search pattern: 1: use :lmap; 2: use IM; 0: neither' },
+  },
+  {
+    header = N_ 'multi-byte characters',
+    { 'fileencoding', N_ 'character encoding for the current file' },
+    { 'fileencodings', N_ 'automatically detected character encodings' },
+    { 'charconvert', N_ 'expression used for character encoding conversion' },
+    { 'delcombine', N_ 'delete combining (composing) characters on their own' },
+    { 'ambiwidth', N_ 'width of ambiguous width characters' },
+    { 'emoji', N_ 'emoji characters are full width' },
+  },
+  {
+    header = N_ 'various',
+    { 'virtualedit', N_ 'when to use virtual editing: "block", "insert", "all"\nand/or "onemore"' },
+    { 'eventignore', N_ 'list of autocommand events which are to be ignored' },
+    { 'eventignorewin', N_ 'list of autocommand events which are to be ignored in a window' },
+    { 'loadplugins', N_ 'load plugin scripts when starting up' },
+    { 'exrc', N_ 'enable reading .vimrc/.exrc/.gvimrc in the current directory' },
+    { 'gdefault', N_ 'use the \'g\' flag for ":substitute"' },
+    { 'maxfuncdepth', N_ 'maximum depth of function calls' },
+    { 'sessionoptions', N_ 'list of words that specifies what to put in a session file' },
+    { 'viewoptions', N_ 'list of words that specifies what to save for :mkview' },
+    { 'viewdir', N_ 'directory where to store files with :mkview' },
+    { 'shada', N_ 'list that specifies what to write in the ShaDa file' },
+    { 'shadafile', N_ 'overrides the filename used for shada' },
+    { 'bufhidden', N_ "what happens with a buffer when it's no longer in a window" },
+    { 'buftype', N_ 'empty, "nofile", "nowrite", "quickfix", etc.: type of buffer' },
+    { 'buflisted', N_ 'whether the buffer shows up in the buffer list' },
+    { 'debug', N_ 'set to "msg" to see all error messages' },
+    { 'signcolumn', N_ 'whether to show the signcolumn' },
+    { 'pyxversion', N_ 'whether to use Python 2 or 3' },
+    { 'inccommand', N_ 'live preview of substitution' },
+    { 'busy', N_ 'buffer is busy' },
+    { 'termpastefilter', N_ 'characters removed when pasting into terminal window' },
+    { 'scrollback', N_ 'number of lines kept beyond the visible screen in terminal buffer' },
+  },
+}
+
+local local_to_window = N_ '(local to window)'
+local local_to_buffer = N_ '(local to buffer)'
+local global_or_local_to_buffer = N_ '(global or local to buffer)'
+local global_or_local_to_window = N_ '(global or local to window)'
+
+local lines = {
+  N_ '" Each "set" line shows the current value of an option (on the left).',
+  N_ '" Hit <Enter> on a "set" line to execute it.',
+  N_ '"            A boolean option will be toggled.',
+  N_ '"            For other options you can edit the value before hitting <Enter>.',
+  N_ '" Hit <Enter> on a help line to open a help window on this option.',
+  N_ '" Hit <Enter> on an index line to jump there.',
+  N_ '" Hit <Space> on a "set" line to refresh it.',
+  '',
+}
+
+for header_number, options in ipairs(options_list) do
+  table.insert(lines, ('%2d %s'):format(header_number, options.header))
+end
+table.insert(lines, '')
+
+for header_number, options in ipairs(options_list) do
+  table.insert(lines, '')
+  table.insert(lines, ('%2d %s'):format(header_number, options.header))
+  table.insert(lines, '')
+  for _, opt_desc_and_name in ipairs(options) do
+    local name, desc = unpack(opt_desc_and_name)
+
+    vim.list_extend(
+      lines,
+      vim.split(
+        ('%s%s\t%s'):format(name, #name >= 15 and '\n' or '', desc:gsub('\n', '\n\t')),
+        '\n'
+      )
+    )
+
+    local info = vim.api.nvim_get_option_info2(name, {})
+
+    if info.scope == 'buf' and info.global_local then
+      table.insert(lines, '\t' .. global_or_local_to_buffer)
+    elseif info.scope == 'win' and info.global_local then
+      table.insert(lines, '\t' .. global_or_local_to_window)
+    elseif info.scope == 'buf' then
+      table.insert(lines, '\t' .. local_to_buffer)
+    elseif info.scope == 'win' then
+      table.insert(lines, '\t' .. local_to_window)
+    end
+
+    local shortname = info.shortname or name
+    if shortname == '' then
+      shortname = name
+    end
+
+    if info.type == 'boolean' then
+      if vim.o[name] then
+        table.insert(lines, (' \tset %s\tno%s'):format(shortname, shortname))
+      else
+        table.insert(lines, (' \tset no%s\t%s'):format(shortname, shortname))
+      end
+    else
+      local value = vim.o[name] --[[@as string]]
+      table.insert(lines, (' \tset %s=%s'):format(shortname, value))
+    end
+  end
+end
+
+--- An optwin buffer has 5 types of lines (given pattern):
+--- '^".*'       : comment (other)
+--- '^ *[0-9]+'  : header (header)
+--- '^[^\ts].*'  : option header + description (opt-desc)
+--- '^\t.*'      : description continuation (desc-cont)
+--- '^ \tset .*' : option set (set)
+---
+---@param line string
+---@return 'set'|'opt-desc'|'desc-cont'|'header'|'other'
+local function line_get_type(line)
+  if line:find('^ \tset ') then
+    return 'set'
+  elseif line:find('^%s-[0-9]') then
+    return 'header'
+  elseif line:find('^\t') then
+    return 'desc-cont'
+  elseif line:find('^[a-z]') then
+    return 'opt-desc'
+  end
+  return 'other'
+end
+
+---@return integer|false
+local function find_window_to_have_options_in()
+  local thiswin = vim.fn.winnr()
+  local altwin = vim.fn.winnr('#')
+
+  if vim.bo[vim.fn.winbufnr(altwin)].filetype == 'help' then
+    altwin = altwin + 1
+    if altwin == thiswin then
+      altwin = altwin + 1 --[[@as integer]]
+    end
+  end
+
+  if
+    altwin == 0
+    or altwin == thiswin
+    or vim.bo[vim.fn.winbufnr(altwin)].filetype == 'help'
+    or vim.fn.winnr('$') < altwin
+  then
+    vim.notify("Don't know in which window")
+    return false
+  end
+
+  return vim.fn.win_getid(altwin)
+end
+
+local function update_current_line()
+  local line = vim.api.nvim_get_current_line()
+  if line_get_type(line) ~= 'set' then
+    return
+  end
+
+  ---@type string
+  local name
+  if line:find('=') then
+    name = line:match('^ \tset (.-)=')
+  else
+    name = line:match('^ \tset ([a-z]*)'):gsub('^no', '') --[[@as string]]
+  end
+
+  local info = vim.api.nvim_get_option_info2(name, {})
+
+  ---@type any
+  local value
+  if info.global_local or info.scope == 'global' then
+    value = vim.o[name] --[[@as any]]
+  else
+    local win = find_window_to_have_options_in()
+    if not win then
+      return
+    end
+
+    value = vim._with({
+      win = win,
+    }, function()
+      return vim.o[name]
+    end)
+  end
+
+  if info.type == 'boolean' then
+    if value then
+      vim.api.nvim_set_current_line((' \tset %s\tno%s'):format(name, name))
+    else
+      vim.api.nvim_set_current_line((' \tset no%s\t%s'):format(name, name))
+    end
+  else
+    vim.api.nvim_set_current_line((' \tset %s=%s'):format(name, value))
+  end
+end
+
+local function current_line_set_option()
+  local line = vim.api.nvim_get_current_line()
+  if line_get_type(line) ~= 'set' then
+    return
+  end
+
+  ---@type string
+  local name
+  ---@type string|boolean|integer
+  local value
+  if line:find('=') then
+    name, value = line:match('^ \tset (.-)=(.*)')
+  else
+    local option = line:match('^ \tset ([a-z]*)')
+    name = option:gsub('^no', '') --[[@as string]]
+    value = vim.startswith(option, 'no')
+  end
+
+  local info = vim.api.nvim_get_option_info2(name, {})
+
+  if info.type == 'number' then
+    value = assert(tonumber(value), value .. ' is not a number')
+  end
+
+  if info.global_local or info.scope == 'global' then
+    ---@diagnostic disable-next-line: no-unknown
+    vim.o[name] = value
+  else
+    local win = find_window_to_have_options_in()
+    if not win then
+      return
+    end
+
+    vim._with({
+      win = win,
+    }, function()
+      ---@diagnostic disable-next-line: no-unknown
+      vim.o[name] = value
+    end)
+  end
+
+  update_current_line()
+end
+
+local buf = vim.fn.bufnr('nvim-optwin://optwin')
+if buf >= 0 then
+  local winids = vim.fn.win_findbuf(buf)
+  if #winids > 0 and vim.fn.win_gotoid(winids[1]) == 1 then
+    return
+  end
+
+  vim.cmd((vim.env.OPTWIN_CMD or '') .. ' new nvim-optwin://optwin')
+else
+  vim.cmd((vim.env.OPTWIN_CMD or '') .. ' new nvim-optwin://optwin')
+
+  buf = vim.api.nvim_get_current_buf()
+  vim.bo[buf].tabstop = 15
+  vim.bo[buf].buftype = 'nofile'
+  vim.api.nvim_buf_set_lines(buf, 0, -1, true, lines)
+
+  vim.bo[buf].filetype = 'vim'
+  vim.cmd [[
+  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
+  ]]
+
+  vim.keymap.set({ 'n', 'i' }, '<CR>', function()
+    local lnum = vim.fn.search('^[^\t]', 'bcWn')
+    local line = vim.fn.getline(lnum)
+
+    local line_type = line_get_type(line)
+
+    if line_type == 'set' then
+      current_line_set_option()
+    elseif line_type == 'header' then
+      vim.fn.search(line, 'w')
+    elseif line_type == 'opt-desc' then
+      local name = line:match('[^\t]*')
+      vim.cmd.help(("'%s'"):format(name))
+    end
+  end, { buffer = buf })
+
+  vim.keymap.set({ 'n', 'i' }, '<space>', update_current_line, { buffer = buf })
+end
+
+vim.cmd '1'
diff --git a/src/nvim/option.c b/src/nvim/option.c
@@ -12,7 +12,7 @@
 // - If it's a numeric option, add any necessary bounds checks to check_num_option_bounds().
 // - If it's a list of flags, add some code in do_set(), search for WW_ALL.
 // - Add documentation! "desc" in options.lua, and any other related places.
-// - Add an entry in runtime/optwin.vim.
+// - Add an entry in runtime/scripts/optwin.lua.
 
 #define IN_OPTION_C
 #include <assert.h>
diff --git a/src/nvim/po/CMakeLists.txt b/src/nvim/po/CMakeLists.txt
@@ -55,16 +55,10 @@ if(HAVE_WORKING_LIBINTL AND GETTEXT_FOUND AND XGETTEXT_PRG AND ICONV_PRG)
   list(SORT NVIM_RELATIVE_SOURCES)
   add_custom_command(
     OUTPUT ${NVIM_POT}
-    COMMAND $<TARGET_FILE:nvim_bin> -u NONE -i NONE -n --headless --cmd "set cpo+=+"
-      -c "silent source ${CMAKE_CURRENT_SOURCE_DIR}/tojavascript.vim"
-      ${NVIM_POT} ${PROJECT_SOURCE_DIR}/runtime/optwin.vim
     COMMAND ${XGETTEXT_PRG} -o ${NVIM_POT} --default-domain=nvim
       --add-comments --keyword=_ --keyword=N_ --keyword=NGETTEXT:1,2
       -D ${CMAKE_CURRENT_SOURCE_DIR} -D ${CMAKE_CURRENT_BINARY_DIR}
-      ${NVIM_RELATIVE_SOURCES} optwin.js
-    COMMAND $<TARGET_FILE:nvim_bin> -u NONE -i NONE -n --headless --cmd "set cpo+=+"
-      -c "silent source ${CMAKE_CURRENT_SOURCE_DIR}/fixfilenames.vim"
-      ${NVIM_POT} ${PROJECT_SOURCE_DIR}/runtime/optwin.vim
+      ${NVIM_RELATIVE_SOURCES} ${PROJECT_SOURCE_DIR}/runtime/scripts/optwin.lua
     VERBATIM
     DEPENDS ${NVIM_SOURCES} nvim_bin nvim_runtime_deps)
 
diff --git a/src/nvim/vim_defs.h b/src/nvim/vim_defs.h
@@ -2,7 +2,7 @@
 
 // Some defines from the old feature.h
 #define SESSION_FILE "Session.vim"
-#define SYS_OPTWIN_FILE "$VIMRUNTIME/optwin.vim"
+#define SYS_OPTWIN_FILE "$VIMRUNTIME/scripts/optwin.lua"
 #define RUNTIME_DIRNAME "runtime"
 
 enum {
diff --git a/test/functional/plugin/optwin_spec.lua b/test/functional/plugin/optwin_spec.lua
@@ -0,0 +1,101 @@
+local t = require('test.testutil')
+local n = require('test.functional.testnvim')()
+
+local command = n.command
+local api = n.api
+local fn = n.fn
+local eval = n.eval
+local feed = n.feed
+local clear = n.clear
+local eq = t.eq
+local neq = t.neq
+
+describe('optwin.lua', function()
+  before_each(clear)
+
+  it(':options shows options UI', function()
+    command 'options'
+
+    command '/^ 1'
+    local lnum = fn.line('.')
+    feed('<CR>')
+    neq(lnum, fn.line('.'))
+
+    n.add_builddir_to_rtp()
+    command '/^startofline'
+    local win = api.nvim_get_current_win()
+    feed('<CR>')
+    neq(win, api.nvim_get_current_win())
+    eq('help', eval('&filetype'))
+    api.nvim_win_close(0, true)
+    eq(win, api.nvim_get_current_win())
+
+    command '/^ \t'
+    local opt_value = eval('&startofline')
+    local line = api.nvim_get_current_line()
+    feed('<CR>')
+    neq(opt_value, eval('&startofline'))
+    neq(line, api.nvim_get_current_line())
+
+    command('set startofline!')
+    neq(line, api.nvim_get_current_line())
+    feed('<space>')
+    eq(line, api.nvim_get_current_line())
+
+    command 'wincmd j'
+    command 'wincmd k'
+    command '/^number'
+    command '/^ \t'
+    line = api.nvim_get_current_line()
+    feed('<CR>')
+    neq(line, api.nvim_get_current_line())
+    command 'wincmd o'
+    feed('<CR>')
+    neq(line, api.nvim_get_current_line())
+  end)
+
+  it(':options shows all options', function()
+    local ignore = {
+      -- These options are removed/unused/deprecated
+      'compatible',
+      'paste',
+      'highlight',
+      'terse',
+      'aleph',
+      'encoding',
+      'termencoding',
+      'maxcombine',
+      'secure',
+      'prompt',
+      'edcompatible',
+      'guioptions',
+      'guitablabel',
+      'guitabtooltip',
+      'insertmode',
+      'mouseshape',
+      'imcmdline',
+      'imdisable',
+      'pastetoggle',
+      'langnoremap',
+      'opendevice',
+      'ttyfast',
+      'remap',
+      'hkmap',
+      'hkmapp',
+
+      -- These options are read-only
+      'channel',
+    }
+
+    command 'options'
+
+    local options = ignore
+    for _, line in ipairs(api.nvim_buf_get_lines(0, 0, -1, true)) do
+      if line:match('^[a-z]') then
+        table.insert(options, line:match('^[a-z]+'))
+      end
+    end
+
+    eq(fn.sort(vim.tbl_keys(api.nvim_get_all_options_info())), fn.sort(options))
+  end)
+end)
diff --git a/test/old/testdir/test_options.vim b/test/old/testdir/test_options.vim
@@ -108,9 +108,9 @@ func Test_options_command()
 
   " Check if the option-window is opened horizontally.
   wincmd j
-  call assert_notequal('option-window', bufname(''))
+  call assert_notequal('nvim-optwin://optwin', bufname(''))
   wincmd k
-  call assert_equal('option-window', bufname(''))
+  call assert_equal('nvim-optwin://optwin', bufname(''))
   " close option-window
   close
 
@@ -118,9 +118,9 @@ func Test_options_command()
   vert options
   " Check if the option-window is opened vertically.
   wincmd l
-  call assert_notequal('option-window', bufname(''))
+  call assert_notequal('nvim-optwin://optwin', bufname(''))
   wincmd h
-  call assert_equal('option-window', bufname(''))
+  call assert_equal('nvim-optwin://optwin', bufname(''))
   " close option-window
   close
 
@@ -141,16 +141,16 @@ func Test_options_command()
   tab options
   " Check if the option-window is opened in a tab.
   normal gT
-  call assert_notequal('option-window', bufname(''))
+  call assert_notequal('nvim-optwin://optwin', bufname(''))
   normal gt
-  call assert_equal('option-window', bufname(''))
+  call assert_equal('nvim-optwin://optwin', bufname(''))
   " close option-window
   close
 
   " Open the options window browse
   if has('browse')
     browse set
-    call assert_equal('option-window', bufname(''))
+    call assert_equal('nvim-optwin://optwin', bufname(''))
     close
   endif
 endfunc