28 files changed, 339 insertions, 172 deletions
diff --git a/ftplugin/8th.vim b/ftplugin/8th.vim
index e9a63dc1..c7dce2b3 100644
--- a/ftplugin/8th.vim
+++ b/ftplugin/8th.vim
@@ -5,9 +5,10 @@ endif
 " Vim ftplugin file
 " Language:	8th
 " Version:	any
-" Last Change:	2015/11/08
+" Last Change:	2021 Sep 20
+" Last Change:	2021/09/20
 " Maintainer:	Ron Aaron <ron@aaron-tech.com>
-" URL:          https://8th-dev.com/
+" URL:		https://8th-dev.com/
 " Filetypes:	*.8th
 " NOTE: 	8th allows any non-whitespace in a name, so you need to do:
 " 		setlocal iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255
@@ -18,12 +19,13 @@ if exists("b:did_8thplugin")
  finish
 endif
 
-" Don't load another plugin for this buffer
+" Don't load another 8th plugin for this buffer
 let b:did_8thplugin = 1
 
 setlocal ts=2 sts=2 sw=2 et
-setlocal com=s1:/*,mb:*,ex:*/,:\|,:\\
+setlocal com=s1:/*,mb:*,ex:*/,b:--,be:\\
 setlocal fo=tcrqol
 setlocal matchpairs+=\::;
 setlocal iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255
 setlocal suffixesadd=.8th
+let b:undo_ftplugin = "setlocal ts< sts< sw< et< com< fo< mps< isk< sua<"
diff --git a/ftplugin/aap.vim b/ftplugin/aap.vim
index 3a8f1cbb..40f4597b 100644
--- a/ftplugin/aap.vim
+++ b/ftplugin/aap.vim
@@ -5,7 +5,7 @@ endif
 " Vim filetype plugin file
 " Language:	Aap recipe
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2013 Apr 05
+" Last Change:	2021 Nov 14
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -15,8 +15,9 @@ endif
 " Don't load another plugin for this buffer
 let b:did_ftplugin = 1
 
-" Reset 'formatoptions', 'comments' and 'expandtab' to undo this plugin.
-let b:undo_ftplugin = "setl fo< com< et<"
+" Reset 'formatoptions', 'comments', 'commentstring' and 'expandtab' to undo
+" this plugin.
+let b:undo_ftplugin = "setl fo< com< cms< et<"
 
 " Set 'formatoptions' to break comment lines but not other lines,
 " and insert the comment leader when hitting <CR> or using "o".
@@ -24,6 +25,12 @@ setlocal fo-=t fo+=croql
 
 " Set 'comments' to format dashed lists in comments.
 setlocal comments=s:#\ -,m:#\ \ ,e:#,n:#,fb:-
+setlocal commentstring=#\ %s
 
 " Expand tabs to spaces to avoid trouble.
 setlocal expandtab
+
+if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
+  let b:browsefilter = "Aap Recipe Files (*.aap)\t*.aap\nAll Files (*.*)\t*.*\n"
+  let b:undo_ftplugin .= " | unlet! b:browsefilter"
+endif
diff --git a/ftplugin/clojure.vim b/ftplugin/clojure.vim
index 2c2882e3..7fe81f9d 100644
--- a/ftplugin/clojure.vim
+++ b/ftplugin/clojure.vim
@@ -68,8 +68,8 @@ if exists('loaded_matchit')
 	let b:undo_ftplugin .= ' | unlet! b:match_words b:match_skip'
 endif
 
-" Win32 can filter files in the browse dialog
-if has("gui_win32") && !exists("b:browsefilter")
+" Filter files in the browse dialog
+if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
 	let b:browsefilter = "Clojure Source Files (*.clj)\t*.clj\n" .
 	                   \ "ClojureScript Source Files (*.cljs)\t*.cljs\n" .
 	                   \ "Java Source Files (*.java)\t*.java\n" .
diff --git a/ftplugin/diff.vim b/ftplugin/diff.vim
index c7d8cefc..feaefc57 100644
--- a/ftplugin/diff.vim
+++ b/ftplugin/diff.vim
@@ -5,7 +5,7 @@ endif
 " Vim filetype plugin file
 " Language:	Diff
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2020 Jul 18
+" Last Change:	2021 Nov 14
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -13,10 +13,15 @@ if exists("b:did_ftplugin")
 endif
 let b:did_ftplugin = 1
 
-let b:undo_ftplugin = "setl modeline<"
+let b:undo_ftplugin = "setl modeline< commentstring<"
 
 " Don't use modelines in a diff, they apply to the diffed file
 setlocal nomodeline
 
 " If there are comments they start with #
-let &commentstring = "# %s"
+let &l:commentstring = "# %s"
+
+if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
+  let b:browsefilter = "Diff Files (*.diff)\t*.diff\nPatch Files (*.patch)\t*.h\nAll Files (*.*)\t*.*\n"
+  let b:undo_ftplugin .= " | unlet! b:browsefilter"
+endif
diff --git a/ftplugin/dosini.vim b/ftplugin/dosini.vim
index fc739a01..5ee9a5e0 100644
--- a/ftplugin/dosini.vim
+++ b/ftplugin/dosini.vim
@@ -3,7 +3,7 @@ if polyglot#init#is_disabled(expand('<sfile>:p'), 'dosini', 'ftplugin/dosini.vim
 endif
 
 " Vim filetype plugin file
-" Language:             Configuration File (ini file) for MSDOS/MS Windows
+" Language:             Configuration File (ini file) for MS-DOS/MS Windows
 " Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
 " Latest Revision:      2008-07-09
 
diff --git a/ftplugin/dune.vim b/ftplugin/dune.vim
index 4f78d7c6..c89e40d2 100644
--- a/ftplugin/dune.vim
+++ b/ftplugin/dune.vim
@@ -15,10 +15,12 @@ if exists("b:did_ftplugin")
 endif
 let b:did_ftplugin=1
 
-set lisp
+setl lisp
 
 " Comment string
 setl commentstring=;\ %s
 setl comments=n:;
 
 setl iskeyword+=#,?,.,/
+
+let b:undo_ftplugin = "setlocal lisp< cms< com< isk<"
diff --git a/ftplugin/erlang.vim b/ftplugin/erlang.vim
index 798f1ded..85f57209 100644
--- a/ftplugin/erlang.vim
+++ b/ftplugin/erlang.vim
@@ -34,6 +34,28 @@ setlocal commentstring=%%s
 
 setlocal formatoptions+=ro
 
+if get(g:, 'erlang_extend_path', 1)
+  " typical erlang.mk paths
+  let &l:path = join([
+        \ 'deps/*/include',
+        \ 'deps/*/src',
+        \ 'deps/*/test',
+        \ 'deps/*/apps/*/include',
+        \ 'deps/*/apps/*/src',
+        \ &g:path], ',')
+  " typical rebar3 paths
+  let &l:path = join([
+        \ 'apps/*/include',
+        \ 'apps/*/src',
+        \ '_build/default/lib/*/src',
+        \ '_build/default/*/include',
+        \ &l:path], ',')
+  " typical erlang paths
+  let &l:path = join(['include', 'src', 'test', &l:path], ',')
+
+  set wildignore+=*/.erlang.mk/*,*.beam
+endif
+
 setlocal suffixesadd=.erl,.hrl
 
 let &l:include = '^\s*-\%(include\|include_lib\)\s*("\zs\f*\ze")'
diff --git a/ftplugin/git.vim b/ftplugin/git.vim
deleted file mode 100644
index 9a5ac16c..00000000
--- a/ftplugin/git.vim
+++ /dev/null
@@ -1,45 +0,0 @@
-if polyglot#init#is_disabled(expand('<sfile>:p'), 'git', 'ftplugin/git.vim')
-  finish
-endif
-
-" Vim filetype plugin
-" Language:	generic git output
-" Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2019 Dec 05
-
-" Only do this when not done yet for this buffer
-if (exists("b:did_ftplugin"))
-  finish
-endif
-let b:did_ftplugin = 1
-
-if !exists('b:git_dir')
-  if expand('%:p') =~# '[\/]\.git[\/]modules[\/]\|:[\/][\/]\|^\a\a\+:'
-    " Stay out of the way
-  elseif expand('%:p') =~# '[\/]\.git[\/]worktrees'
-    let b:git_dir = matchstr(expand('%:p'),'.*\.git[\/]worktrees[\/][^\/]\+\>')
-  elseif expand('%:p') =~# '\.git\>'
-    let b:git_dir = matchstr(expand('%:p'),'.*\.git\>')
-  elseif $GIT_DIR != ''
-    let b:git_dir = $GIT_DIR
-  endif
-  if (has('win32') || has('win64')) && exists('b:git_dir')
-    let b:git_dir = substitute(b:git_dir,'\\','/','g')
-  endif
-endif
-
-if exists('*shellescape') && exists('b:git_dir') && b:git_dir != ''
-  if b:git_dir =~# '/\.git$' " Not a bare repository
-    let &l:path = escape(fnamemodify(b:git_dir,':h'),'\, ').','.&l:path
-  endif
-  let &l:path = escape(b:git_dir,'\, ').','.&l:path
-  let &l:keywordprg = 'git --git-dir='.shellescape(b:git_dir).' show'
-else
-  setlocal keywordprg=git\ show
-endif
-if has('gui_running') && &guioptions !~# '!'
-  let &l:keywordprg = substitute(&l:keywordprg,'^git\>','git --no-pager','')
-endif
-
-setlocal includeexpr=substitute(v:fname,'^[^/]\\+/','','')
-let b:undo_ftplugin = "setl keywordprg< path< includeexpr<"
diff --git a/ftplugin/gitcommit.vim b/ftplugin/gitcommit.vim
index caa96db8..56e72973 100644
--- a/ftplugin/gitcommit.vim
+++ b/ftplugin/gitcommit.vim
@@ -12,60 +12,50 @@ if (exists("b:did_ftplugin"))
   finish
 endif
 
-runtime! ftplugin/git.vim
 let b:did_ftplugin = 1
 
-setlocal comments=:# commentstring=#\ %s
-setlocal include=^\+\+\+
 setlocal nomodeline tabstop=8 formatoptions+=tl textwidth=72
 setlocal formatoptions-=c formatoptions-=r formatoptions-=o formatoptions-=q formatoptions+=n
 setlocal formatlistpat+=\\\|^\\s*[-*+]\\s\\+
+setlocal include=^+++
+setlocal includeexpr=substitute(v:fname,'^[bi]/','','')
 
-let b:undo_ftplugin = 'setl modeline< tabstop< formatoptions< tw< com< cms< formatlistpat<'
+let b:undo_ftplugin = 'setl modeline< tabstop< formatoptions< tw< com< cms< formatlistpat< inc< inex<'
 
-if exists("g:no_gitcommit_commands") || v:version < 700
-  finish
-endif
+let s:l = search('\C\m^[#;@!$%^&|:] -\{24,\} >8 -\{24,\}$', 'cnW', '', 100)
+let &l:comments = ':' . (matchstr(getline(s:l ? s:l : '$'), '^[#;@!$%^&|:]\S\@!') . '#')[0]
+let &l:commentstring = &l:comments[1] . ' %s'
+unlet s:l
 
-if !exists("b:git_dir")
-  let b:git_dir = expand("%:p:h")
+if exists("g:no_gitcommit_commands")
+  finish
 endif
 
-command! -bang -bar -buffer -complete=custom,s:diffcomplete -nargs=* DiffGitCached :call s:gitdiffcached(<bang>0,b:git_dir,<f-args>)
+command! -bang -bar -buffer -complete=custom,s:diffcomplete -nargs=* DiffGitCached :call s:gitdiffcached(<bang>0, <f-args>)
 
 let b:undo_ftplugin = b:undo_ftplugin . "|delc DiffGitCached"
 
-function! s:diffcomplete(A,L,P)
+function! s:diffcomplete(A, L, P) abort
   let args = ""
   if a:P <= match(a:L." -- "," -- ")+3
     let args = args . "-p\n--stat\n--shortstat\n--summary\n--patch-with-stat\n--no-renames\n-B\n-M\n-C\n"
   end
-  if exists("b:git_dir") && a:A !~ '^-'
-    let tree = fnamemodify(b:git_dir,':h')
-    if strpart(getcwd(),0,strlen(tree)) == tree
-      let args = args."\n".system("git diff --cached --name-only")
-    endif
+  if a:A !~ '^-' && !empty(getftype('.git'))
+    let args = args."\n".system("git diff --cached --name-only")
   endif
   return args
 endfunction
 
-function! s:gitdiffcached(bang,gitdir,...)
-  let tree = fnamemodify(a:gitdir,':h')
+function! s:gitdiffcached(bang, ...) abort
   let name = tempname()
-  let git = "git"
-  if strpart(getcwd(),0,strlen(tree)) != tree
-    let git .= " --git-dir=".(exists("*shellescape") ? shellescape(a:gitdir) : '"'.a:gitdir.'"')
-  endif
   if a:0
-    let extra = join(map(copy(a:000),exists("*shellescape") ? 'shellescape(v:val)' : "'\"'.v:val.'\"'"))
+    let extra = join(map(copy(a:000), 'shellescape(v:val)'))
   else
     let extra = "-p --stat=".&columns
   endif
-  call system(git." diff --cached --no-color --no-ext-diff ".extra." > ".(exists("*shellescape") ? shellescape(name) : name))
-  exe "pedit ".(exists("*fnameescape") ? fnameescape(name) : name)
+  call system("git diff --cached --no-color --no-ext-diff ".extra." > ".shellescape(name))
+  exe "pedit " . fnameescape(name)
   wincmd P
-  let b:git_dir = a:gitdir
-  command! -bang -bar -buffer -complete=custom,s:diffcomplete -nargs=* DiffGitCached :call s:gitdiffcached(<bang>0,b:git_dir,<f-args>)
-  nnoremap <buffer> <silent> q :q<CR>
+  command! -bang -bar -buffer -complete=custom,s:diffcomplete -nargs=* DiffGitCached :call s:gitdiffcached(<bang>0, <f-args>)
   setlocal buftype=nowrite nobuflisted noswapfile nomodifiable filetype=git
 endfunction
diff --git a/ftplugin/gitrebase.vim b/ftplugin/gitrebase.vim
index 7163f916..285f76a4 100644
--- a/ftplugin/gitrebase.vim
+++ b/ftplugin/gitrebase.vim
@@ -12,15 +12,13 @@ if (exists("b:did_ftplugin"))
   finish
 endif
 
-runtime! ftplugin/git.vim
 let b:did_ftplugin = 1
 
-setlocal comments=:# commentstring=#\ %s formatoptions-=t
+let &l:comments = ':' . (matchstr(getline('$'), '^[#;@!$%^&|:]\S\@!') . '#')[0]
+let &l:commentstring = &l:comments[1] . ' %s'
+setlocal formatoptions-=t
 setlocal nomodeline
-if !exists("b:undo_ftplugin")
-  let b:undo_ftplugin = ""
-endif
-let b:undo_ftplugin = b:undo_ftplugin."|setl com< cms< fo< ml<"
+let b:undo_ftplugin = "setl com< cms< fo< ml<"
 
 function! s:choose(word) abort
   s/^\(\w\+\>\)\=\(\s*\)\ze\x\{4,40\}\>/\=(strlen(submatch(1)) == 1 ? a:word[0] : a:word) . substitute(submatch(2),'^$',' ','')/e
@@ -45,8 +43,7 @@ if exists("g:no_plugin_maps") || exists("g:no_gitrebase_maps")
   finish
 endif
 
-nnoremap <buffer> <expr> K col('.') < 7 && expand('<Lt>cword>') =~ '\X' && getline('.') =~ '^\w\+\s\+\x\+\>' ? 'wK' : 'K'
 nnoremap <buffer> <silent> <C-A> :<C-U><C-R>=v:count1<CR>Cycle<CR>
 nnoremap <buffer> <silent> <C-X> :<C-U><C-R>=v:count1<CR>Cycle!<CR>
 
-let b:undo_ftplugin = b:undo_ftplugin . "|exe 'nunmap <buffer> K'|exe 'nunmap <buffer> <C-A>'|exe 'nunmap <buffer> <C-X>'"
+let b:undo_ftplugin = b:undo_ftplugin . "|exe 'nunmap <buffer> <C-A>'|exe 'nunmap <buffer> <C-X>'"
diff --git a/ftplugin/indent.vim b/ftplugin/indent.vim
index 89a779c4..094dcd9e 100644
--- a/ftplugin/indent.vim
+++ b/ftplugin/indent.vim
@@ -3,9 +3,10 @@ if polyglot#init#is_disabled(expand('<sfile>:p'), 'indent', 'ftplugin/indent.vim
 endif
 
 " Vim filetype plugin file
-" Language:             indent(1) configuration file
-" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
-" Latest Revision:      2008-07-09
+" Language:		indent(1) configuration file
+" Maintainer:		Doug Kearns <dougkearns@gmail.com>
+" Previous Maintainer:	Nikolai Weibull <now@bitwi.se>
+" Latest Revision:	2008-07-09
 
 if exists("b:did_ftplugin")
   finish
diff --git a/ftplugin/kotlin.vim b/ftplugin/kotlin.vim
index ca0b35fc..e6677fdf 100644
--- a/ftplugin/kotlin.vim
+++ b/ftplugin/kotlin.vim
@@ -2,8 +2,29 @@ if polyglot#init#is_disabled(expand('<sfile>:p'), 'kotlin', 'ftplugin/kotlin.vim
   finish
 endif
 
+" Vim filetype plugin file
+" Language:     Kotlin
+" Maintainer:   Alexander Udalov
+" URL:          https://github.com/udalov/kotlin-vim
+" Last Change:  7 November 2021
+
 if exists('b:did_ftplugin') | finish | endif
 let b:did_ftplugin = 1
 
+let s:save_cpo = &cpo
+set cpo&vim
+
 setlocal comments=sO:*\ -,mO:*\ \ ,exO:*/,s1:/*,mb:*,ex:*/,://
 setlocal commentstring=//\ %s
+
+setlocal formatoptions-=t formatoptions+=croqnl
+silent! setlocal formatoptions+=j
+
+setlocal includeexpr=substitute(v:fname,'\\.','/','g')
+setlocal suffixesadd=.kt
+
+let b:undo_ftplugin = "setlocal comments< commentstring< ".
+    \ "formatoptions< includeexpr< suffixesadd<"
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
diff --git a/ftplugin/mail.vim b/ftplugin/mail.vim
index 6e4e9a4f..e621acca 100644
--- a/ftplugin/mail.vim
+++ b/ftplugin/mail.vim
@@ -5,7 +5,7 @@ endif
 " Vim filetype plugin file
 " Language:	Mail
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2012 Nov 20
+" Last Change:	2021 Oct 23
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -30,6 +30,14 @@ setlocal fo+=tcql
 " Add n:> to 'comments, in case it was removed elsewhere
 setlocal comments+=n:>
 
+" .eml files are universally formatted with DOS line-endings, per RFC5322.
+" If the file was not DOS the it will be marked as changed, which is probably
+" a good thing.
+if expand('%:e') ==? 'eml'
+  let b:undo_ftplugin .= " fileformat=" .. &fileformat
+  setlocal fileformat=dos
+endif
+
 " Add mappings, unless the user doesn't want this.
 if !exists("no_plugin_maps") && !exists("no_mail_maps")
   " Quote text by inserting "> "
diff --git a/ftplugin/meson.vim b/ftplugin/meson.vim
index 79ff47c6..a3608522 100644
--- a/ftplugin/meson.vim
+++ b/ftplugin/meson.vim
@@ -16,9 +16,28 @@ set cpo&vim
 
 setlocal commentstring=#\ %s
 setlocal comments=:#
+setlocal formatoptions+=croql formatoptions-=t
 
-setlocal shiftwidth=2
-setlocal softtabstop=2
+let b:undo_ftplugin = "setl com< cms< fo<"
+
+if get(g:, "meson_recommended_style", 1)
+  setlocal expandtab
+  setlocal shiftwidth=2
+  setlocal softtabstop=2
+  let b:undo_ftplugin .= " | setl et< sts< sw<"
+endif
+
+if exists("loaded_matchit") && !exists("b:match_words")
+  let b:match_words = '\<if\>:\<elif\>:\<else\>:\<endif\>,' .
+	\             '\<foreach\>:\<break\>:\<continue\>:\<endforeach\>'
+  let b:undo_ftplugin .= " | unlet! b:match_words"
+endif
+
+if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
+  let b:browsefilter = "Meson Build Files (meson.build)\tmeson.build\n" .
+	\	       "All Files (*.*)\t*.*\n"
+  let b:undo_ftplugin .= " | unlet! b:browsefilter"
+endif
 
 let &cpo = s:keepcpo
 unlet s:keepcpo
diff --git a/ftplugin/nginx.vim b/ftplugin/nginx.vim
index 45442242..61b8a760 100644
--- a/ftplugin/nginx.vim
+++ b/ftplugin/nginx.vim
@@ -2,4 +2,8 @@ if polyglot#init#is_disabled(expand('<sfile>:p'), 'nginx', 'ftplugin/nginx.vim')
   finish
 endif
 
+setlocal comments=:#
 setlocal commentstring=#\ %s
+setlocal formatoptions+=croql formatoptions-=t
+
+let b:undo_ftplugin = "setl fo< cms< com<"
diff --git a/ftplugin/nsis.vim b/ftplugin/nsis.vim
index ab54e5d3..2a387b4a 100644
--- a/ftplugin/nsis.vim
+++ b/ftplugin/nsis.vim
@@ -7,7 +7,7 @@ endif
 " Maintainer:		Ken Takata
 " URL:			https://github.com/k-takata/vim-nsis
 " Previous Maintainer:	Nikolai Weibull <now@bitwi.se>
-" Last Change:		2018-01-26
+" Last Change:		2021-10-18
 
 if exists("b:did_ftplugin")
   finish
@@ -19,7 +19,6 @@ set cpo&vim
 let b:did_ftplugin = 1
 
 let b:undo_ftplugin = "setl com< cms< fo< def< inc<"
-      \ " | unlet! b:match_ignorecase b:match_words"
 
 setlocal comments=s1:/*,mb:*,ex:*/,b:#,:; commentstring=;\ %s
 setlocal formatoptions-=t formatoptions+=croql
@@ -41,6 +40,7 @@ if exists("loaded_matchit")
 	\ '\${MementoSection}:\${MementoSectionEnd},' .
 	\ '!if\%(\%(macro\)\?n\?def\)\?\>:!else\>:!endif\>,' .
 	\ '!macro\>:!macroend\>'
+  let b:undo_ftplugin .= " | unlet! b:match_ignorecase b:match_words"
 endif
 
 let &cpo = s:cpo_save
diff --git a/ftplugin/oasis.vim b/ftplugin/oasis.vim
index ad7dd1a5..7c5771db 100644
--- a/ftplugin/oasis.vim
+++ b/ftplugin/oasis.vim
@@ -2,6 +2,12 @@ if polyglot#init#is_disabled(expand('<sfile>:p'), 'ocaml', 'ftplugin/oasis.vim')
   finish
 endif
 
+if exists("b:did_ftplugin")
+  finish
+endif
+let b:did_ftplugin=1
 
 setlocal comments=:#
 setlocal commentstring=#\ %s
+
+let b:undo_ftplugin = "com< cms<"
diff --git a/ftplugin/ocaml.vim b/ftplugin/ocaml.vim
index 6ce2adcb..858e4fd4 100644
--- a/ftplugin/ocaml.vim
+++ b/ftplugin/ocaml.vim
@@ -46,6 +46,8 @@ setlocal comments=sr:(*\ ,mb:\ ,ex:*)
 setlocal comments^=sr:(**,mb:\ \ ,ex:*)
 setlocal commentstring=(*%s*)
 
+let b:undo_ftplugin = "setlocal com< cms<"
+
 " Add mappings, unless the user didn't want this.
 if !exists("no_plugin_maps") && !exists("no_ocaml_maps")
   " (un)commenting
@@ -54,6 +56,11 @@ if !exists("no_plugin_maps") && !exists("no_ocaml_maps")
     xmap <buffer> <LocalLeader>c <Plug>BUncomOn
     nmap <buffer> <LocalLeader>C <Plug>LUncomOff
     xmap <buffer> <LocalLeader>C <Plug>BUncomOff
+    let b:undo_ftplugin .=
+	  \ " | silent! execute 'nunmap <buffer> <LocalLeader>c'" .
+	  \ " | silent! execute 'xunmap <buffer> <LocalLeader>c'" .
+	  \ " | silent! execute 'nunmap <buffer> <LocalLeader>C'" .
+	  \ " | silent! execute 'xunmap <buffer> <LocalLeader>C'"
   endif
 
   nnoremap <buffer> <Plug>LUncomOn gI(* <End> *)<ESC>
@@ -66,17 +73,27 @@ if !exists("no_plugin_maps") && !exists("no_ocaml_maps")
 
   nmap <buffer> <LocalLeader>t <Plug>OCamlPrintType
   xmap <buffer> <LocalLeader>t <Plug>OCamlPrintType
+
+  let b:undo_ftplugin .=
+	\ " | silent! execute 'nunmap <buffer> <LocalLeader>s'" .
+	\ " | silent! execute 'nunmap <buffer> <LocalLeader>S'" .
+	\ " | silent! execute 'nunmap <buffer> <LocalLeader>t'" .
+	\ " | silent! execute 'xunmap <buffer> <LocalLeader>t'"
 endif
 
-" Let % jump between structure elements (due to Issac Trotts)
-let b:mw =         '\<let\>:\<and\>:\(\<in\>\|;;\)'
-let b:mw = b:mw . ',\<if\>:\<then\>:\<else\>'
-let b:mw = b:mw . ',\<\(for\|while\)\>:\<do\>:\<done\>'
-let b:mw = b:mw . ',\<\(object\|sig\|struct\|begin\)\>:\<end\>'
-let b:mw = b:mw . ',\<\(match\|try\)\>:\<with\>'
-let b:match_words = b:mw
+if exists("loaded_matchit") && !exists("b:match_words")
+  " Let % jump between structure elements (due to Issac Trotts)
+  let b:mw =         '\<let\>:\<and\>:\(\<in\>\|;;\)'
+  let b:mw = b:mw . ',\<if\>:\<then\>:\<else\>'
+  let b:mw = b:mw . ',\<\(for\|while\)\>:\<do\>:\<done\>'
+  let b:mw = b:mw . ',\<\(object\|sig\|struct\|begin\)\>:\<end\>'
+  let b:mw = b:mw . ',\<\(match\|try\)\>:\<with\>'
+  let b:match_words = b:mw
+
+  let b:match_ignorecase=0
 
-let b:match_ignorecase=0
+  let b:undo_ftplugin .= " | unlet! b:match_ignorecase b:match_words"
+endif
 
 function! s:OcpGrep(bang,args) abort
   let grepprg = &l:grepprg
@@ -154,12 +171,9 @@ endif
 if exists("g:ocaml_folding")
   setlocal foldmethod=expr
   setlocal foldexpr=OMLetFoldLevel(v:lnum)
+  let b:undo_ftplugin .= " | setlocal fdm< fde<"
 endif
 
-let b:undo_ftplugin = "setlocal efm< foldmethod< foldexpr<"
-	\ . "| unlet! b:mw b:match_words b:match_ignorecase"
-
-
 " - Only definitions below, executed once -------------------------------------
 
 if exists("*OMLetFoldLevel")
diff --git a/ftplugin/ocamlbuild_tags.vim b/ftplugin/ocamlbuild_tags.vim
index 5e83406d..5eecc1ce 100644
--- a/ftplugin/ocamlbuild_tags.vim
+++ b/ftplugin/ocamlbuild_tags.vim
@@ -2,6 +2,12 @@ if polyglot#init#is_disabled(expand('<sfile>:p'), 'ocaml', 'ftplugin/ocamlbuild_
   finish
 endif
 
+if exists("b:did_ftplugin")
+  finish
+endif
+let b:did_ftplugin=1
 
 setlocal comments=:#
 setlocal commentstring=#\ %s
+
+let b:undo_ftplugin = "com< cms<"
diff --git a/ftplugin/omake.vim b/ftplugin/omake.vim
index 59e11101..fe99ea15 100644
--- a/ftplugin/omake.vim
+++ b/ftplugin/omake.vim
@@ -26,3 +26,5 @@ setlocal expandtab
 
 " Including files.
 let &l:include = '^\s*include'
+
+let b:undo_ftplugin = "fo< com< cms< et< inc<"
diff --git a/ftplugin/ruby.vim b/ftplugin/ruby.vim
index 1c6f828f..fcf346a0 100644
--- a/ftplugin/ruby.vim
+++ b/ftplugin/ruby.vim
@@ -90,8 +90,14 @@ endfunction
 
 function! s:build_path(path) abort
   let path = join(map(copy(a:path), 'v:val ==# "." ? "" : v:val'), ',')
-  if &g:path !~# '\v^%(\.,)=%(/%(usr|emx)/include,)=,$'
-    let path = substitute(&g:path,',,$',',','') . ',' . path
+  if &g:path =~# '\v^%(\.,)=%(/%(usr|emx)/include,)=,$'
+    let path = path . ',.,,'
+  elseif &g:path =~# ',\.,,$'
+    let path = &g:path[0:-4] . path . ',.,,'
+  elseif &g:path =~# ',,$'
+    let path = &g:path[0:-2] . path . ',,'
+  else
+    let path = substitute(&g:path, '[^,]\zs$', ',', '') . path
   endif
   return path
 endfunction
@@ -167,6 +173,8 @@ let b:undo_ftplugin .= "| sil! cunmap <buffer> <Plug><ctag>| sil! cunmap <buffer
 if !exists("g:no_plugin_maps") && !exists("g:no_ruby_maps")
   nmap <buffer><script> <SID>:  :<C-U>
   nmap <buffer><script> <SID>c: :<C-U><C-R>=v:count ? v:count : ''<CR>
+  cmap <buffer> <SID><cfile> <Plug><cfile>
+  cmap <buffer> <SID><ctag>  <Plug><ctag>
 
   nnoremap <silent> <buffer> [m :<C-U>call <SID>searchsyn('\<def\>',['rubyDefine'],'b','n')<CR>
   nnoremap <silent> <buffer> ]m :<C-U>call <SID>searchsyn('\<def\>',['rubyDefine'],'','n')<CR>
@@ -213,20 +221,20 @@ if !exists("g:no_plugin_maps") && !exists("g:no_ruby_maps")
   call s:map('c', '', '<C-R><C-F> <Plug><cfile>')
 
   cmap <buffer><script><expr> <SID>tagzv &foldopen =~# 'tag' ? '<Bar>norm! zv' : ''
-  call s:map('n', '<silent>', '<C-]>       <SID>:exe  v:count1."tag <Plug><ctag>"<SID>tagzv<CR>')
-  call s:map('n', '<silent>', 'g<C-]>      <SID>:exe         "tjump <Plug><ctag>"<SID>tagzv<CR>')
-  call s:map('n', '<silent>', 'g]          <SID>:exe       "tselect <Plug><ctag>"<SID>tagzv<CR>')
-  call s:map('n', '<silent>', '<C-W>]      <SID>:exe v:count1."stag <Plug><ctag>"<SID>tagzv<CR>')
-  call s:map('n', '<silent>', '<C-W><C-]>  <SID>:exe v:count1."stag <Plug><ctag>"<SID>tagzv<CR>')
-  call s:map('n', '<silent>', '<C-W>g<C-]> <SID>:exe        "stjump <Plug><ctag>"<SID>tagzv<CR>')
-  call s:map('n', '<silent>', '<C-W>g]     <SID>:exe      "stselect <Plug><ctag>"<SID>tagzv<CR>')
-  call s:map('n', '<silent>', '<C-W>}      <SID>:exe v:count1."ptag <Plug><ctag>"<CR>')
-  call s:map('n', '<silent>', '<C-W>g}     <SID>:exe        "ptjump <Plug><ctag>"<CR>')
-
-  call s:map('n', '<silent>', 'gf           <SID>c:find <Plug><cfile><CR>')
-  call s:map('n', '<silent>', '<C-W>f      <SID>c:sfind <Plug><cfile><CR>')
-  call s:map('n', '<silent>', '<C-W><C-F>  <SID>c:sfind <Plug><cfile><CR>')
-  call s:map('n', '<silent>', '<C-W>gf   <SID>c:tabfind <Plug><cfile><CR>')
+  call s:map('n', '<script><silent>', '<C-]>       <SID>:exe  v:count1."tag <SID><ctag>"<SID>tagzv<CR>')
+  call s:map('n', '<script><silent>', 'g<C-]>      <SID>:exe         "tjump <SID><ctag>"<SID>tagzv<CR>')
+  call s:map('n', '<script><silent>', 'g]          <SID>:exe       "tselect <SID><ctag>"<SID>tagzv<CR>')
+  call s:map('n', '<script><silent>', '<C-W>]      <SID>:exe v:count1."stag <SID><ctag>"<SID>tagzv<CR>')
+  call s:map('n', '<script><silent>', '<C-W><C-]>  <SID>:exe v:count1."stag <SID><ctag>"<SID>tagzv<CR>')
+  call s:map('n', '<script><silent>', '<C-W>g<C-]> <SID>:exe        "stjump <SID><ctag>"<SID>tagzv<CR>')
+  call s:map('n', '<script><silent>', '<C-W>g]     <SID>:exe      "stselect <SID><ctag>"<SID>tagzv<CR>')
+  call s:map('n', '<script><silent>', '<C-W>}      <SID>:exe v:count1."ptag <SID><ctag>"<CR>')
+  call s:map('n', '<script><silent>', '<C-W>g}     <SID>:exe        "ptjump <SID><ctag>"<CR>')
+
+  call s:map('n', '<script><silent>', 'gf           <SID>c:find <SID><cfile><CR>')
+  call s:map('n', '<script><silent>', '<C-W>f      <SID>c:sfind <SID><cfile><CR>')
+  call s:map('n', '<script><silent>', '<C-W><C-F>  <SID>c:sfind <SID><cfile><CR>')
+  call s:map('n', '<script><silent>', '<C-W>gf   <SID>c:tabfind <SID><cfile><CR>')
 endif
 
 let &cpo = s:cpo_save
diff --git a/ftplugin/sexplib.vim b/ftplugin/sexplib.vim
index 976e3897..74a00e54 100644
--- a/ftplugin/sexplib.vim
+++ b/ftplugin/sexplib.vim
@@ -17,3 +17,5 @@ let b:did_ftplugin=1
 " Comment string
 setl commentstring=;\ %s
 setl comments=n:;
+
+let b:undo_ftplugin = "setl cms< com<"
diff --git a/ftplugin/systemverilog.vim b/ftplugin/systemverilog.vim
index 53bd1351..6db92d88 100644
--- a/ftplugin/systemverilog.vim
+++ b/ftplugin/systemverilog.vim
@@ -36,7 +36,7 @@ if exists("loaded_matchit")
     \ '\<checker\>:\<endchecker\>,' .
     \ '\<class\>:\<endclass\>,' .
     \ '\<clocking\>:\<endclocking\>,' .
-    \ '\<gruop\>:\<endgruop\>,' .
+    \ '\<group\>:\<endgroup\>,' .
     \ '\<interface\>:\<endinterface\>,' .
     \ '\<package\>:\<endpackage\>,' .
     \ '\<program\>:\<endprogram\>,' .
diff --git a/ftplugin/toml.vim b/ftplugin/toml.vim
index 8d45ea77..689b016c 100644
--- a/ftplugin/toml.vim
+++ b/ftplugin/toml.vim
@@ -2,13 +2,15 @@ if polyglot#init#is_disabled(expand('<sfile>:p'), 'toml', 'ftplugin/toml.vim')
   finish
 endif
 
-" File: ftplugin/toml.vim
-" Author: Kevin Ballard <kevin@sb.org>
-" Description: FileType Plugin for Toml
-" Last Change: Feb 12, 2019
+" Vim filetype plugin
+" Language:    TOML
+" Homepage:    https://github.com/cespare/vim-toml
+" Maintainer:  Aman Verma
+" Author:      Kevin Ballard <kevin@sb.org>
+" Last Change: Sep 21, 2021
 
 if exists('b:did_ftplugin')
-    finish
+  finish
 endif
 let b:did_ftplugin = 1
 
@@ -22,4 +24,4 @@ setlocal comments=:#
 let &cpo = s:save_cpo
 unlet s:save_cpo
 
-" vim: set et sw=4 ts=4:
+" vim: et sw=2 sts=2
diff --git a/ftplugin/unison.vim b/ftplugin/unison.vim
new file mode 100644
index 00000000..93ac81d6
--- /dev/null
+++ b/ftplugin/unison.vim
@@ -0,0 +1,11 @@
+if polyglot#init#is_disabled(expand('<sfile>:p'), 'unison', 'ftplugin/unison.vim')
+  finish
+endif
+
+" Only do this when not done yet for this buffer
+if exists("b:did_ftplugin")
+  finish
+endif
+let b:did_ftplugin = 1
+
+call unison#SetBufferDefaults()
diff --git a/ftplugin/vb.vim b/ftplugin/vb.vim
index 0b5763f2..36c2a9f1 100644
--- a/ftplugin/vb.vim
+++ b/ftplugin/vb.vim
@@ -3,46 +3,72 @@ if polyglot#init#is_disabled(expand('<sfile>:p'), 'visual-basic', 'ftplugin/vb.v
 endif
 
 " Vim filetype plugin file
-" Language:	VisualBasic (ft=vb)
-" Maintainer:	Johannes Zellner <johannes@zellner.org>
-" Last Change:	Thu, 22 Nov 2001 12:56:14 W. Europe Standard Time
+" Language:		Visual Basic (ft=vb)
+" Maintainer:		Doug Kearns <dougkearns@gmail.com>
+" Previous Maintainer:	Johannes Zellner <johannes@zellner.org>
+" Last Change:		2021 Nov 17
 
-if exists("b:did_ftplugin") | finish | endif
+if exists("b:did_ftplugin")
+  finish
+endif
 let b:did_ftplugin = 1
 
-setlocal com=sr:'\ -,mb:'\ \ ,el:'\ \ ,:'
+let s:cpo_save = &cpo
+set cpo&vim
+
+setlocal comments=sr:'\ -,mb:'\ \ ,el:'\ \ ,:'
+setlocal commentstring='\ %s
+setlocal formatoptions-=t formatoptions+=croql
+
+let b:undo_ftplugin = "setlocal com< cms< fo<"
 
 " we need this wrapper, as call doesn't allow a count
-fun! <SID>VbSearch(pattern, flags)
+function! s:VbSearch(pattern, flags)
     let cnt = v:count1
     while cnt > 0
 	call search(a:pattern, a:flags)
 	let cnt = cnt - 1
     endwhile
-endfun
+endfunction
 
-let s:cpo_save = &cpo
-set cpo&vim
+if !exists("no_plugin_maps") && !exists("no_vb_maps")
+  nnoremap <buffer> <silent> [[ <Cmd>call <SID>VbSearch('^\s*\%(\%(private\<Bar>public\)\s\+\)\=\%(function\<Bar>sub\)', 'sbW')<CR>
+  vnoremap <buffer> <silent> [[ <Cmd>call <SID>VbSearch('^\s*\%(\%(private\<Bar>public\)\s\+\)\=\%(function\<Bar>sub\)', 'sbW')<CR>
+  nnoremap <buffer> <silent> ]] <Cmd>call <SID>VbSearch('^\s*\%(\%(private\<Bar>public\)\s\+\)\=\%(function\<Bar>sub\)', 'sW')<CR>
+  vnoremap <buffer> <silent> ]] <Cmd>call <SID>VbSearch('^\s*\%(\%(private\<Bar>public\)\s\+\)\=\%(function\<Bar>sub\)', 'sW')<CR>
+  nnoremap <buffer> <silent> [] <Cmd>call <SID>VbSearch('^\s*end\s\+\%(function\<Bar>sub\)', 'sbW')<CR>
+  vnoremap <buffer> <silent> [] <Cmd>call <SID>VbSearch('^\s*end\s\+\%(function\<Bar>sub\)', 'sbW')<CR>
+  nnoremap <buffer> <silent> ][ <Cmd>call <SID>VbSearch('^\s*end\s\+\%(function\<Bar>sub\)', 'sW')<CR>
+  vnoremap <buffer> <silent> ][ <Cmd>call <SID>VbSearch('^\s*end\s\+\%(function\<Bar>sub\)', 'sW')<CR>
+  let b:undo_ftplugin .= " | sil! exe 'nunmap <buffer> [[' | sil! exe 'vunmap <buffer> [['" .
+	\		 " | sil! exe 'nunmap <buffer> ]]' | sil! exe 'vunmap <buffer> ]]'" .
+	\		 " | sil! exe 'nunmap <buffer> []' | sil! exe 'vunmap <buffer> []'" .
+	\		 " | sil! exe 'nunmap <buffer> ][' | sil! exe 'vunmap <buffer> ]['"
+endif
+
+" TODO: line start anchors are almost certainly overly restrictive - allow
+" after statement separators.  Even in QuickBasic only block IF statements
+" were required to be at the start of a line.
+if exists("loaded_matchit") && !exists("b:match_words")
+  let b:match_ignorecase = 1
+  let b:match_words =
+	\ '\%(^\s*\)\@<=\<if\>.*\<then\>\s*\%($\|''\):\%(^\s*\)\@<=\<else\>:\%(^\s*\)\@<=\<elseif\>:\%(^\s*\)\@<=\<end\>\s\+\<if\>,' .
+	\ '\%(^\s*\)\@<=\<for\>:\%(^\s*\)\@<=\<next\>,' .
+	\ '\%(^\s*\)\@<=\<while\>:\%(^\s*\)\@<=\<wend\>,' .
+	\ '\%(^\s*\)\@<=\<do\>:\%(^\s*\)\@<=\<loop\>\s\+\<while\>,' .
+	\ '\%(^\s*\)\@<=\<select\>\s\+\<case\>:\%(^\s*\)\@<=\<case\>:\%(^\s*\)\@<=\<end\>\s\+\<select\>,' .
+	\ '\%(^\s*\)\@<=\<enum\>:\%(^\s*\)\@<=\<end\>\s\<enum\>,' .
+	\ '\%(^\s*\)\@<=\<with\>:\%(^\s*\)\@<=\<end\>\s\<with\>,' .
+	\ '\%(^\s*\)\@<=\%(\<\%(private\|public\)\>\s\+\)\=\<function\>\s\+\([^ \t(]\+\):\%(^\s*\)\@<=\<\1\>\s*=:\%(^\s*\)\@<=\<end\>\s\+\<function\>,' .
+	\ '\%(^\s*\)\@<=\%(\<\%(private\|public\)\>\s\+\)\=\<sub\>\s\+:\%(^\s*\)\@<=\<end\>\s\+\<sub\>'
+  let b:undo_ftplugin .= " | unlet! b:match_words b:match_ignorecase"
+endif
 
-" NOTE the double escaping \\|
-nnoremap <buffer> <silent> [[ :call <SID>VbSearch('^\s*\(\(private\|public\)\s\+\)\=\(function\\|sub\)', 'bW')<cr>
-nnoremap <buffer> <silent> ]] :call <SID>VbSearch('^\s*\(\(private\|public\)\s\+\)\=\(function\\|sub\)', 'W')<cr>
-nnoremap <buffer> <silent> [] :call <SID>VbSearch('^\s*\<end\>\s\+\(function\\|sub\)', 'bW')<cr>
-nnoremap <buffer> <silent> ][ :call <SID>VbSearch('^\s*\<end\>\s\+\(function\\|sub\)', 'W')<cr>
-
-" matchit support
-if exists("loaded_matchit")
-    let b:match_ignorecase=1
-    let b:match_words=
-    \ '\%(^\s*\)\@<=\<if\>.*\<then\>\s*$:\%(^\s*\)\@<=\<else\>:\%(^\s*\)\@<=\<elseif\>:\%(^\s*\)\@<=\<end\>\s\+\<if\>,' .
-    \ '\%(^\s*\)\@<=\<for\>:\%(^\s*\)\@<=\<next\>,' .
-    \ '\%(^\s*\)\@<=\<while\>:\%(^\s*\)\@<=\<wend\>,' .
-    \ '\%(^\s*\)\@<=\<do\>:\%(^\s*\)\@<=\<loop\>\s\+\<while\>,' .
-    \ '\%(^\s*\)\@<=\<select\>\s\+\<case\>:\%(^\s*\)\@<=\<case\>:\%(^\s*\)\@<=\<end\>\s\+\<select\>,' .
-    \ '\%(^\s*\)\@<=\<enum\>:\%(^\s*\)\@<=\<end\>\s\<enum\>,' .
-    \ '\%(^\s*\)\@<=\<with\>:\%(^\s*\)\@<=\<end\>\s\<with\>,' .
-    \ '\%(^\s*\)\@<=\%(\<\%(private\|public\)\>\s\+\)\=\<function\>\s\+\([^ \t(]\+\):\%(^\s*\)\@<=\<\1\>\s*=:\%(^\s*\)\@<=\<end\>\s\+\<function\>,' .
-    \ '\%(^\s*\)\@<=\%(\<\%(private\|public\)\>\s\+\)\=\<sub\>\s\+:\%(^\s*\)\@<=\<end\>\s\+\<sub\>'
+if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
+  let b:browsefilter = "Visual Basic Source Files (*.bas)\t*.bas\n" .
+	\	       "Visual Basic Form Files (*.frm)\t*.frm\n" .
+	\	       "All Files (*.*)\t*.*\n"
+  let b:undo_ftplugin .= " | unlet! b:browsefilter"
 endif
 
 let &cpo = s:cpo_save
diff --git a/ftplugin/zig.vim b/ftplugin/zig.vim
index cb2f3e84..1e6f91b3 100644
--- a/ftplugin/zig.vim
+++ b/ftplugin/zig.vim
@@ -39,14 +39,18 @@ endif
 
 let &l:define='\v(<fn>|<const>|<var>|^\s*\#\s*define)'
 
-if exists("*json_decode") && executable('zig')
+if !exists('g:zig_std_dir') && exists('*json_decode') && executable('zig')
     silent let s:env = system('zig env')
     if v:shell_error == 0
-        let &l:path=json_decode(s:env)['std_dir'] . ',' . &l:path
+        let g:zig_std_dir = json_decode(s:env)['std_dir']
     endif
     unlet! s:env
 endif
 
+if exists('g:zig_std_dir')
+    let &l:path = g:zig_std_dir . ',' . &l:path
+endif
+
 let b:undo_ftplugin =
     \ 'setl isk< et< ts< sts< sw< fo< sua< mp< com< cms< inex< inc< pa<'
 
diff --git a/ftplugin/zimbu.vim b/ftplugin/zimbu.vim
index a16fe8c0..0605d513 100644
--- a/ftplugin/zimbu.vim
+++ b/ftplugin/zimbu.vim
@@ -5,7 +5,7 @@ endif
 " Vim filetype plugin file
 " Language:	Zimbu
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2017 Dec 05
+" Last Change:	2021 Nov 12
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -38,9 +38,11 @@ setlocal errorformat^=%f\ line\ %l\ col\ %c:\ %m,ERROR:\ %m
 
 " When the matchit plugin is loaded, this makes the % command skip parens and
 " braces in comments.
-let b:match_words = '\(^\s*\)\@<=\(MODULE\|CLASS\|INTERFACE\|BITS\|ENUM\|SHARED\|FUNC\|REPLACE\|DEFINE\|PROC\|EQUAL\|MAIN\|IF\|GENERATE_IF\|WHILE\|REPEAT\|WITH\|DO\|FOR\|SWITCH\|TRY\)\>\|{\s*$:\(^\s*\)\@<=\(ELSE\|ELSEIF\|GENERATE_ELSE\|GENERATE_ELSEIF\|CATCH\|FINALLY\)\>:\(^\s*\)\@<=\(}\|\<UNTIL\>\)'
-
-let b:match_skip = 's:comment\|string\|zimbuchar'
+if exists("loaded_matchit") && !exists("b:match_words")
+  let b:match_words = '\(^\s*\)\@<=\(MODULE\|CLASS\|INTERFACE\|BITS\|ENUM\|SHARED\|FUNC\|REPLACE\|DEFINE\|PROC\|EQUAL\|MAIN\|IF\|GENERATE_IF\|WHILE\|REPEAT\|WITH\|DO\|FOR\|SWITCH\|TRY\)\>\|{\s*$:\(^\s*\)\@<=\(ELSE\|ELSEIF\|GENERATE_ELSE\|GENERATE_ELSEIF\|CATCH\|FINALLY\)\>:\(^\s*\)\@<=\(}\|\<UNTIL\>\)'
+  let b:match_skip = 's:comment\|string\|zimbuchar'
+  let b:undo_ftplugin .= " | unlet! b:match_words b:match_skip"
+endif
 
 setlocal tw=78
 setlocal et sts=2 sw=2
@@ -139,9 +141,60 @@ iabbr <buffer> <expr> until GCUpperSpace("until")
 iabbr <buffer> <expr> while GCUpperSpace("while")
 iabbr <buffer> <expr> repeat GCUpper("repeat")
 
+let b:undo_ftplugin ..=
+      \ " | iunabbr <buffer> alias" ..
+      \ " | iunabbr <buffer> arg" ..
+      \ " | iunabbr <buffer> break" ..
+      \ " | iunabbr <buffer> case" ..
+      \ " | iunabbr <buffer> catch" ..
+      \ " | iunabbr <buffer> check" ..
+      \ " | iunabbr <buffer> class" ..
+      \ " | iunabbr <buffer> interface" ..
+      \ " | iunabbr <buffer> implements" ..
+      \ " | iunabbr <buffer> shared" ..
+      \ " | iunabbr <buffer> continue" ..
+      \ " | iunabbr <buffer> default" ..
+      \ " | iunabbr <buffer> extends" ..
+      \ " | iunabbr <buffer> do" ..
+      \ " | iunabbr <buffer> else" ..
+      \ " | iunabbr <buffer> elseif" ..
+      \ " | iunabbr <buffer> enum" ..
+      \ " | iunabbr <buffer> exit" ..
+      \ " | iunabbr <buffer> false" ..
+      \ " | iunabbr <buffer> fail" ..
+      \ " | iunabbr <buffer> finally" ..
+      \ " | iunabbr <buffer> for" ..
+      \ " | iunabbr <buffer> func" ..
+      \ " | iunabbr <buffer> if" ..
+      \ " | iunabbr <buffer> import" ..
+      \ " | iunabbr <buffer> in" ..
+      \ " | iunabbr <buffer> io" ..
+      \ " | iunabbr <buffer> main" ..
+      \ " | iunabbr <buffer> module" ..
+      \ " | iunabbr <buffer> new" ..
+      \ " | iunabbr <buffer> nil" ..
+      \ " | iunabbr <buffer> ok" ..
+      \ " | iunabbr <buffer> proc" ..
+      \ " | iunabbr <buffer> proceed" ..
+      \ " | iunabbr <buffer> return" ..
+      \ " | iunabbr <buffer> step" ..
+      \ " | iunabbr <buffer> switch" ..
+      \ " | iunabbr <buffer> sys" ..
+      \ " | iunabbr <buffer> this" ..
+      \ " | iunabbr <buffer> throw" ..
+      \ " | iunabbr <buffer> try" ..
+      \ " | iunabbr <buffer> to" ..
+      \ " | iunabbr <buffer> true" ..
+      \ " | iunabbr <buffer> until" ..
+      \ " | iunabbr <buffer> while" ..
+      \ " | iunabbr <buffer> repeat"
+
 if !exists("no_plugin_maps") && !exists("no_zimbu_maps")
   nnoremap <silent> <buffer> [[ m`:call ZimbuGoStartBlock()<CR>
   nnoremap <silent> <buffer> ]] m`:call ZimbuGoEndBlock()<CR>
+  let b:undo_ftplugin ..=
+	\ " | silent! exe 'nunmap <buffer> [['" ..
+	\ " | silent! exe 'nunmap <buffer> ]]'"
 endif
 
 " Using a function makes sure the search pattern is restored