Update runtime files

25 files changed, 503 insertions, 452 deletions

diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 41bf193be7..b07870054c 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -89,6 +89,7 @@ runtime/ftplugin/gitsendemail.vim	@tpope
 runtime/ftplugin/gprof.vim		@dpelle
 runtime/ftplugin/haml.vim		@tpope
 runtime/ftplugin/hgcommit.vim		@k-takata
+runtime/ftplugin/i3config.vim		@hiqua
 runtime/ftplugin/indent.vim		@dkearns
 runtime/ftplugin/javascript.vim		@dkearns
 runtime/ftplugin/javascriptreact.vim	@dkearns
@@ -114,6 +115,7 @@ runtime/ftplugin/routeros.vim		@zainin
 runtime/ftplugin/ruby.vim		@tpope @dkearns
 runtime/ftplugin/sass.vim		@tpope
 runtime/ftplugin/scss.vim		@tpope
+runtime/ftplugin/solution.vim		@dkearns
 runtime/ftplugin/spec.vim		@ignatenkobrain
 runtime/ftplugin/systemverilog.vim	@Kocha
 runtime/ftplugin/tcsh.vim		@dkearns
@@ -208,6 +210,7 @@ runtime/syntax/groff.vim		@jmarshall
 runtime/syntax/haml.vim			@tpope
 runtime/syntax/haskell.vim		@coot
 runtime/syntax/hgcommit.vim		@k-takata
+runtime/syntax/i3config.vim		@hiqua
 runtime/syntax/indent.vim		@dkearns
 runtime/syntax/kconfig.vim		@chrisbra
 runtime/syntax/less.vim			@genoma
diff --git a/runtime/doc/editing.txt b/runtime/doc/editing.txt
index 3493510061..9736d4c481 100644
--- a/runtime/doc/editing.txt
+++ b/runtime/doc/editing.txt
@@ -1,4 +1,4 @@
-*editing.txt*   For Vim version 8.2.  Last change: 2021 Oct 16
+*editing.txt*   For Vim version 8.2.  Last change: 2021 Dec 11
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 21cf3f6c17..6765bdcf7e 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1,4 +1,4 @@
-*eval.txt*	For Vim version 8.2.  Last change: 2021 Nov 20
+*eval.txt*	For Vim version 8.2.  Last change: 2021 Dec 15
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
diff --git a/runtime/doc/helphelp.txt b/runtime/doc/helphelp.txt
index 0fa5d8fbcd..357a64e78a 100644
--- a/runtime/doc/helphelp.txt
+++ b/runtime/doc/helphelp.txt
@@ -1,4 +1,4 @@
-*helphelp.txt*	For Vim version 8.2.  Last change: 2021 Nov 18
+*helphelp.txt*	For Vim version 8.2.  Last change: 2021 Dec 13
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -163,7 +163,7 @@ If you would like to open the help in the current window, see this tip:
 
 The initial height of the help window can be set with the 'helpheight' option
 (default 20).
-
+						*help-buffer-options*
 When the help buffer is created, several local options are set to make sure
 the help text is displayed as it was intended:
     'iskeyword'		nearly all ASCII chars except ' ', '*', '"' and '|'
diff --git a/runtime/doc/map.txt b/runtime/doc/map.txt
index 981ecf7925..fc3f42584c 100644
--- a/runtime/doc/map.txt
+++ b/runtime/doc/map.txt
@@ -1,4 +1,4 @@
-*map.txt*       For Vim version 8.2.  Last change: 2021 Nov 20
+*map.txt*       For Vim version 8.2.  Last change: 2021 Dec 15
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -173,7 +173,7 @@ type "a", then "bar" will get inserted.
 "<unique>" can be used in any order.  They must appear right after the
 command, before any other arguments.
 
-				*:map-local* *:map-<buffer>* *E224* *E225*
+			*:map-local* *:map-<buffer>* *:map-buffer* *E224* *E225*
 If the first argument to one of these commands is "<buffer>" the mapping will
 be effective in the current buffer only.  Example: >
 	:map <buffer>  ,w  /[.,;]<CR>
@@ -232,7 +232,7 @@ Note: ":map <script>" and ":noremap <script>" do the same thing.  The
 "<script>" overrules the command name.  Using ":noremap <script>" is
 preferred, because it's clearer that remapping is (mostly) disabled.
 
-						*:map-<unique>* *E226* *E227*
+				*:map-<unique>* *:map-unique* *E226* *E227*
 If the first argument to one of these commands is "<unique>" and it is used to
 define a new mapping or abbreviation, the command will fail if the mapping or
 abbreviation already exists.  Example: >
@@ -974,28 +974,35 @@ Here is an example that counts the number of spaces with <F4>: >
 	" doubling <F4> works on a line
 	nnoremap <expr> <F4><F4> CountSpaces() .. '_'
 
-	function CountSpaces(type = '') abort
+	function CountSpaces(virtualedit = '', irregular_block = v:false, type = '') abort
 	  if a:type == ''
-	    set opfunc=CountSpaces
+	    let &operatorfunc = function('CountSpaces', [&virtualedit, v:false])
+	    set virtualedit=block
 	    return 'g@'
- 	  endif
+	  endif
 
+	  let cb_save = &clipboard
 	  let sel_save = &selection
 	  let reg_save = getreginfo('"')
-	  let cb_save = &clipboard
 	  let visual_marks_save = [getpos("'<"), getpos("'>")]
 
 	  try
-	    set clipboard= selection=inclusive
-	    let commands = #{line: "'[V']y", char: "`[v`]y", block: "`[\<c-v>`]y"}
-	    silent exe 'noautocmd keepjumps normal! ' .. get(commands, a:type, '')
-	    echom getreg('"')->count(' ')
+	    set clipboard= selection=inclusive virtualedit=
+	    let commands = #{line: "'[V']", char: "`[v`]", block: "`[\<C-V>`]"}->get(a:type, 'v')
+	    if getpos("']")[-1] != 0 || a:irregular_block
+	      let commands ..= 'oO$'
+	      let &operatorfunc = function('CountSpaces', [a:virtualedit, v:true])
+	    endif
+	    let commands ..= 'y'
+	    execute 'silent noautocmd keepjumps normal! ' .. commands
+	    echomsg getreg('"')->count(' ')
 	  finally
 	    call setreg('"', reg_save)
 	    call setpos("'<", visual_marks_save[0])
 	    call setpos("'>", visual_marks_save[1])
 	    let &clipboard = cb_save
 	    let &selection = sel_save
+	    let &virtualedit = a:virtualedit
 	  endtry
 	endfunction
 
diff --git a/runtime/doc/message.txt b/runtime/doc/message.txt
index cbb320a5b5..1690e41e19 100644
--- a/runtime/doc/message.txt
+++ b/runtime/doc/message.txt
@@ -1,4 +1,4 @@
-*message.txt*   For Vim version 8.2.  Last change: 2021 Jul 31
+*message.txt*   For Vim version 8.2.  Last change: 2021 Dec 13
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
diff --git a/runtime/doc/motion.txt b/runtime/doc/motion.txt
index 81310a9291..4412d56d1d 100644
--- a/runtime/doc/motion.txt
+++ b/runtime/doc/motion.txt
@@ -1,4 +1,4 @@
-*motion.txt*    For Vim version 8.2.  Last change: 2021 Dec 04
+*motion.txt*    For Vim version 8.2.  Last change: 2021 Dec 13
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
diff --git a/runtime/doc/tags b/runtime/doc/tags
index f694ba2bc5..fc5a0c9254 100644
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -118,6 +118,8 @@ $VIM_POSIX	vi_diff.txt	/*$VIM_POSIX*
 'cc'	options.txt	/*'cc'*
 'ccv'	options.txt	/*'ccv'*
 'cd'	options.txt	/*'cd'*
+'cdh'	options.txt	/*'cdh'*
+'cdhome'	options.txt	/*'cdhome'*
 'cdpath'	options.txt	/*'cdpath'*
 'cedit'	options.txt	/*'cedit'*
 'cf'	options.txt	/*'cf'*
@@ -2754,6 +2756,7 @@ $VIM_POSIX	vi_diff.txt	/*$VIM_POSIX*
 :map-<unique>	map.txt	/*:map-<unique>*
 :map-alt-keys	map.txt	/*:map-alt-keys*
 :map-arguments	map.txt	/*:map-arguments*
+:map-buffer	map.txt	/*:map-buffer*
 :map-cmd	map.txt	/*:map-cmd*
 :map-commands	map.txt	/*:map-commands*
 :map-expression	map.txt	/*:map-expression*
@@ -2767,6 +2770,7 @@ $VIM_POSIX	vi_diff.txt	/*$VIM_POSIX*
 :map-special-chars	map.txt	/*:map-special-chars*
 :map-special-keys	map.txt	/*:map-special-keys*
 :map-undo	map.txt	/*:map-undo*
+:map-unique	map.txt	/*:map-unique*
 :map-verbose	map.txt	/*:map-verbose*
 :map_l	map.txt	/*:map_l*
 :map_l!	map.txt	/*:map_l!*
@@ -7270,6 +7274,7 @@ hasmapto()	eval.txt	/*hasmapto()*
 hebrew	hebrew.txt	/*hebrew*
 hebrew.txt	hebrew.txt	/*hebrew.txt*
 help	helphelp.txt	/*help*
+help-buffer-options	helphelp.txt	/*help-buffer-options*
 help-context	help.txt	/*help-context*
 help-curwin	tips.txt	/*help-curwin*
 help-summary	usr_02.txt	/*help-summary*
diff --git a/runtime/doc/term.txt b/runtime/doc/term.txt
index 3333a3ab6f..8862d0a400 100644
--- a/runtime/doc/term.txt
+++ b/runtime/doc/term.txt
@@ -1,4 +1,4 @@
-*term.txt*      For Vim version 8.2.  Last change: 2021 Dec 04
+*term.txt*      For Vim version 8.2.  Last change: 2021 Dec 08
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -150,6 +150,8 @@ terminal that tmux is running in): >
         " Enable focus event tracking, see  :help xterm-focus-event
         let &t_fe = "\<Esc>[?1004h"
         let &t_fd = "\<Esc>[?1004l"
+	execute "set <FocusGained>=\<Esc>[I"
+        execute "set <FocusLost>=\<Esc>[O"
 
         " Enable modified arrow keys, see  :help arrow_modifiers
         execute "silent! set <xUp>=\<Esc>[@;*A"
@@ -606,6 +608,8 @@ If your terminal does support this but Vim does not recognize the terminal,
 you may have to set the options yourself: >
 	let &t_fe = "\<Esc>[?1004h"
 	let &t_fd = "\<Esc>[?1004l"
+	execute "set <FocusGained>=\<Esc>[I"
+        execute "set <FocusLost>=\<Esc>[O"
 If this causes garbage to show when Vim starts up then it doesn't work.
 
 							*termcap-colors*
diff --git a/runtime/doc/testing.txt b/runtime/doc/testing.txt
index d064dc1bf0..44296f0e71 100644
--- a/runtime/doc/testing.txt
+++ b/runtime/doc/testing.txt
@@ -1,4 +1,4 @@
-*testing.txt*	For Vim version 8.2.  Last change: 2021 Aug 15
+*testing.txt*	For Vim version 8.2.  Last change: 2021 Dec 11
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -65,7 +65,8 @@ test_garbagecollect_now()			 *test_garbagecollect_now()*
 		Like garbagecollect(), but executed right away.  This must
 		only be called directly to avoid any structure to exist
 		internally, and |v:testing| must have been set before calling
-		any function.
+		any function.  This will not work when called from a :def
+		function, because variables on the stack will be freed.
 
 
 test_garbagecollect_soon()			 *test_garbagecollect_soon()*
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index 1772aa1e92..80ea2a33e5 100644
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -1,4 +1,4 @@
-*todo.txt*      For Vim version 8.2.  Last change: 2021 Dec 05
+*todo.txt*      For Vim version 8.2.  Last change: 2021 Dec 15
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -39,7 +39,7 @@ browser use: https://github.com/vim/vim/issues/1234
 -------------------- Known bugs and current work -----------------------
 
 Vim9 - Make everything work:
-- Check TODO items in vim9compile.c and vim9execute.c
+- Check TODO items in  vim9execute.c
 - use CheckLegacyAndVim9Success(lines) in many more places
 - For builtin functions using tv_get_string*() use check_for_string() to be
   more strict about the argument type (not a bool).
@@ -194,8 +194,6 @@ Terminal emulator window:
 - GUI: When using ":set go+=!" a system() call causes the hit-enter prompt.
   (#3327)
 - Allow for specifying the directory, with ++cwd={dir}.
-- With a vertical split only one window is updated. (Linwei, 2018 Jun 2,
-  #2977)
 - When pasting should call vterm_keyboard_start_paste(), e.g. when using
   K_MIDDLEMOUSE, calling insert_reg().
 - Users expect parsing the :term argument like a shell does, also support
@@ -271,6 +269,8 @@ Was originally written by Felipe Morales.
 Request to use "." for the cursor column in search pattern \%<.c and \%<.v.
 (#8179)
 
+":filter set termcap" only filters terminal codes, not keys. (#9297)
+
 Remove SPACE_IN_FILENAME ? It is only used for completion.
 
 When 'term' starts with "foot" then default t_TI and t_TE to the values used
@@ -846,9 +846,7 @@ window for the buffer.
 Win32 key codes are messy.  Mike Williams tried to fix that, but now old
 mappings no longer work.  Create a new terminal for the better solution?
 
-Compiler warnings (geeknik, 2017 Oct 26):
-- signed integer overflow in do_sub() (#2249)
-- signed integer overflow in get_address() (#2248)
+Compiler warning (geeknik, 2017 Oct 26):
 - undefined left shift in get_string_tv() (#2250)
 
 Add Native language protocol server (LSP) support. (Yegappan Lakshmanan, 2018
@@ -3895,7 +3893,7 @@ User Friendlier:
     $HOME/_vimrc, etc.) and add "edit vimrc" to the File menu.
 -   Add a way to save local settings and mappings into a new plugin file.
     ":mkplugin <file>"?
--   Add mappings local to a window: ":map <window> ..."?
+-   Add mappings local to a window: ":map <window> ..."  #9339
 9   Add buffer-local menu.  Should offer a choice between removing the menu or
     disabling it.  Be careful that tear-offs don't disappear (keep one empty
     item?).
diff --git a/runtime/doc/various.txt b/runtime/doc/various.txt
index 6bccc83b23..b82427ca18 100644
--- a/runtime/doc/various.txt
+++ b/runtime/doc/various.txt
@@ -1,4 +1,4 @@
-*various.txt*   For Vim version 8.2.  Last change: 2021 Nov 30
+*various.txt*   For Vim version 8.2.  Last change: 2021 Dec 13
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -598,7 +598,7 @@ N  *+X11*		Unix only: can restore window title |X11|
 			   |:oldfiles|   - filter by file name
 			   |:registers|  - filter by register contents
 					   (does not work multi-line)
-			   |:set|        - filter by variable name
+			   |:set|        - filter by option name
 
 			Only normal messages are filtered, error messages are
 			not.
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index 856ec2f118..990d759e6c 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -1,4 +1,4 @@
-*vim9.txt*	For Vim version 8.2.  Last change: 2021 Dec 01
+*vim9.txt*	For Vim version 8.2.  Last change: 2021 Dec 15
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -568,6 +568,20 @@ characters, e.g.: >
 	   })
 No command can follow the "{", only a comment can be used there.
 
+If the statements include a dictionary, its closing bracket must not be
+written at the start of a line.  Otherwise, it would be parsed as the end of
+the block.  This does not work: >
+	command NewCommand {
+	     let g:mydict = {
+	       'key': 'value',
+	       }  # ERROR: will be recognized as the end of the block
+	   }
+Put the '}' after the last item to avoid this: >
+	command NewCommand {
+	     let g:mydict = {
+	       'key': 'value' }
+	   }
+
 Rationale: The "}" cannot be after a command because it would require parsing
 the commands to find it.  For consistency with that no command can follow the
 "{".  Unfortunately this means using "() => {  command  }" does not work, line
diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index 7b2090ceaa..d99527f17b 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -1,7 +1,7 @@
 " Vim support file to detect file types
 "
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2021 Dec 03
+" Last Change:	2021 Dec 14
 
 " Listen very carefully, I will say this only once
 if exists("did_load_filetypes")
diff --git a/runtime/ftplugin/i3config.vim b/runtime/ftplugin/i3config.vim
new file mode 100644
index 0000000000..4204510e64
--- /dev/null
+++ b/runtime/ftplugin/i3config.vim
@@ -0,0 +1,13 @@
+" Vim filetype plugin file
+" Language: i3 config file
+" Original Author: Mohamed Boughaba <mohamed dot bgb at gmail dot com>
+" Maintainer: Quentin Hibon
+" Version: 0.4
+" Last Change: 2021 Dec 14
+
+if exists("b:did_ftplugin") | finish | endif
+let b:did_ftplugin = 1
+
+let b:undo_ftplugin = "setlocal cms<"
+
+setlocal commentstring=#\ %s
diff --git a/runtime/ftplugin/solution.vim b/runtime/ftplugin/solution.vim
new file mode 100644
index 0000000000..bd30c7bb19
--- /dev/null
+++ b/runtime/ftplugin/solution.vim
@@ -0,0 +1,37 @@
+" Vim filetype plugin file
+" Language:	Microsoft Visual Studio Solution
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2021 Dec 15
+
+if exists("b:did_ftplugin")
+  finish
+endif
+let b:did_ftplugin = 1
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+setlocal comments=:#
+setlocal commentstring=#\ %s
+
+let b:undo_ftplugin = "setl com< cms<"
+
+if exists("loaded_matchit") && !exists("b:match_words")
+  let b:match_words =
+	\ '\<Project\>:\<EndProject\>,' ..
+	\ '\<ProjectSection\>:\<EndProjectSection\>,' ..
+	\ '\<Global\>:\<EndGlobal\>,' ..
+	\ '\<GlobalSection\>:\<EndGlobalSection\>'
+  let b:undo_ftplugin ..= " | unlet! b:match_words"
+endif
+
+if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
+  let b:browsefilter = "Microsoft Visual Studio Solution Files\t*.sln\n" ..
+	\	       "All Files (*.*)\t*.*\n"
+  let b:undo_ftplugin ..= " | unlet! b:browsefilter"
+endif
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
+
+" vim: nowrap sw=2 sts=2 ts=8 noet:
diff --git a/runtime/optwin.vim b/runtime/optwin.vim
index 91824f8065..17fe276376 100644
--- a/runtime/optwin.vim
+++ b/runtime/optwin.vim
@@ -1,7 +1,7 @@
 " These commands create the option window.
 "
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2021 Dec 11
+" Last Change:	2021 Dec 12
 
 " If there already is an option window, jump to that one.
 let buf = bufnr('option-window')
@@ -260,10 +260,8 @@ 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)
-if exists("+cdhome")
-  call <SID>AddOption("cdhome", gettext("change directory to the home directory by :cd"))
-  call <SID>BinOptionG("cdh", &cdh)
-endif
+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")
diff --git a/runtime/pack/dist/opt/termdebug/plugin/termdebug.vim b/runtime/pack/dist/opt/termdebug/plugin/termdebug.vim
index e2d23475eb..2dead80aeb 100644
--- a/runtime/pack/dist/opt/termdebug/plugin/termdebug.vim
+++ b/runtime/pack/dist/opt/termdebug/plugin/termdebug.vim
@@ -2,7 +2,7 @@
 "
 " Author: Bram Moolenaar
 " Copyright: Vim license applies, see ":help license"
-" Last Change: 2021 Nov 29
+" Last Change: 2021 Dec 16
 "
 " WORK IN PROGRESS - Only the basics work
 " Note: On MS-Windows you need a recent version of gdb.  The one included with
@@ -585,7 +585,7 @@ endfunc
 " to the next ", unescaping characters:
 " - remove line breaks
 " - change \\t to \t
-" - change \0xhh to \xhh
+" - change \0xhh to \xhh (disabled for now)
 " - change \ooo to octal
 " - change \\ to \
 func s:DecodeMessage(quotedText)
@@ -594,12 +594,21 @@ func s:DecodeMessage(quotedText)
     return
   endif
   return a:quotedText
-        \->substitute('^"\|".*\|\\n', '', 'g')
-        \->substitute('\\t', "\t", 'g')
-        \->substitute('\\0x\(\x\x\)', {-> eval('"\x' .. submatch(1) .. '"')}, 'g')
-        \->substitute('\\\o\o\o', {-> eval('"' .. submatch(0) .. '"')}, 'g')
-        \->substitute('\\\\', '\', 'g')
+        \ ->substitute('^"\|".*\|\\n', '', 'g')
+        \ ->substitute('\\t', "\t", 'g')
+        " multi-byte characters arrive in octal form
+        " NULL-values must be kept encoded as those break the string otherwise
+        \ ->substitute('\\000', s:NullRepl, 'g')
+        \ ->substitute('\\\o\o\o', {-> eval('"' .. submatch(0) .. '"')}, 'g')
+        " Note: GDB docs also mention hex encodings - the translations below work
+        "       but we keep them out for performance-reasons until we actually see
+        "       those in mi-returns
+        " \ ->substitute('\\0x\(\x\x\)', {-> eval('"\x' .. submatch(1) .. '"')}, 'g')
+        " \ ->substitute('\\0x00', s:NullRepl, 'g')
+        \ ->substitute('\\\\', '\', 'g')
+        \ ->substitute(s:NullRepl, '\\000', 'g')
 endfunc
+const s:NullRepl = 'XXXNULLXXX'
 
 " Extract the "name" value from a gdb message with fullname="name".
 func s:GetFullname(msg)
@@ -1081,10 +1090,19 @@ let s:evalFromBalloonExpr = 0
 
 " Handle the result of data-evaluate-expression
 func s:HandleEvaluate(msg)
-  let value = substitute(a:msg, '.*value="\(.*\)"', '\1', '')
-  let value = substitute(value, '\\"', '"', 'g')
-  " multi-byte characters arrive in octal form
-  let value = substitute(value, '\\\o\o\o', {-> eval('"' .. submatch(0) .. '"')}, 'g')
+  let value = a:msg
+    \ ->substitute('.*value="\(.*\)"', '\1', '')
+    \ ->substitute('\\"', '"', 'g')
+    \ ->substitute('\\\\', '\\', 'g')
+    "\ multi-byte characters arrive in octal form, replace everthing but NULL values
+    \ ->substitute('\\000', s:NullRepl, 'g')
+    \ ->substitute('\\\o\o\o', {-> eval('"' .. submatch(0) .. '"')}, 'g')
+    "\ Note: GDB docs also mention hex encodings - the translations below work
+    "\       but we keep them out for performance-reasons until we actually see
+    "\       those in mi-returns
+    "\ ->substitute('\\0x00', s:NullRep, 'g')
+    "\ ->substitute('\\0x\(\x\x\)', {-> eval('"\x' .. submatch(1) .. '"')}, 'g')
+    \ ->substitute(s:NullRepl, '\\000', 'g')
   if s:evalFromBalloonExpr
     if s:evalFromBalloonExprResult == ''
       let s:evalFromBalloonExprResult = s:evalexpr . ': ' . value
diff --git a/runtime/syntax/c.vim b/runtime/syntax/c.vim
index 20f8632006..e86e1b8669 100644
--- a/runtime/syntax/c.vim
+++ b/runtime/syntax/c.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language:	C
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2021 May 24
+" Last Change:	2021 Dec 07
 
 " Quit when a (custom) syntax file was already loaded
 if exists("b:current_syntax")
@@ -196,7 +196,6 @@ syn match	cNumber		display contained "0x\x\+\(u\=l\{0,2}\|ll\=u\)\>"
 " Flag the first zero of an octal number as something special
 syn match	cOctal		display contained "0\o\+\(u\=l\{0,2}\|ll\=u\)\>" contains=cOctalZero
 syn match	cOctalZero	display contained "\<0"
-syn match	cFloat		display contained "\d\+f"
 "floating point number, with dot, optional exponent
 syn match	cFloat		display contained "\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\="
 "floating point number, starting with a dot, optional exponent
diff --git a/runtime/syntax/css.vim b/runtime/syntax/css.vim
index 67ad1ea335..564dc151bc 100644
--- a/runtime/syntax/css.vim
+++ b/runtime/syntax/css.vim
@@ -7,7 +7,7 @@
 "               Nikolai Weibull (Add CSS2 support)
 " URL:          https://github.com/vim-language-dept/css-syntax.vim
 " Maintainer:   Jay Sitter <jay@jaysitter.com>
-" Last Change:  2021 Oct 15
+" Last Change:  2021 Oct 20
 
 " quit when a syntax file was already loaded
 if !exists("main_syntax")
@@ -116,7 +116,7 @@ syn keyword cssColor contained ActiveBorder ActiveCaption AppWorkspace ButtonFac
 syn case ignore
 
 syn match cssImportant contained "!\s*important\>"
-syn match cssCustomProp contained "--[a-zA-Z0-9-_]*"
+syn match cssCustomProp contained "\<--[a-zA-Z0-9-_]*\>"
 
 syn match cssColor contained "\<transparent\>"
 syn match cssColor contained "\<currentColor\>"
@@ -126,6 +126,7 @@ syn match cssColor contained "#\x\{6\}\>" contains=cssUnitDecorators
 syn match cssColor contained "#\x\{8\}\>" contains=cssUnitDecorators
 
 syn region cssURL contained matchgroup=cssFunctionName start="\<\(uri\|url\|local\|format\)\s*(" end=")" contains=cssStringQ,cssStringQQ oneline
+syn region cssMathGroup contained matchgroup=cssMathParens start="(" end=")" containedin=cssFunction,cssMathGroup contains=cssCustomProp,cssValue.*,cssFunction,cssColor,cssStringQ,cssStringQQ oneline
 syn region cssFunction contained matchgroup=cssFunctionName start="\<\(var\|calc\)\s*(" end=")" contains=cssCustomProp,cssValue.*,cssFunction,cssColor,cssStringQ,cssStringQQ oneline
 syn region cssFunction contained matchgroup=cssFunctionName start="\<\(rgb\|clip\|attr\|counter\|rect\|cubic-bezier\|steps\)\s*(" end=")" oneline  contains=cssValueInteger,cssValueNumber,cssValueLength,cssFunctionComma
 syn region cssFunction contained matchgroup=cssFunctionName start="\<\(rgba\|hsl\|hsla\|color-stop\|from\|to\)\s*(" end=")" oneline  contains=cssColor,cssValueInteger,cssValueNumber,cssValueLength,cssFunctionComma,cssFunction
@@ -395,9 +396,9 @@ syn match cssUIAttr contained '\<preserve-3d\>'
 syn match cssIEUIAttr contained '\<bicubic\>'
 
 " Webkit/iOS specific properties
-syn match cssUIProp contained '\<tap-highlight-color\|user-select\|touch-callout\>'
+syn match cssUIProp contained '\<\(tap-highlight-color\|user-select\|touch-callout\)\>'
 " IE specific properties
-syn match cssIEUIProp contained '\<interpolation-mode\|zoom\|filter\>'
+syn match cssIEUIProp contained '\<\(interpolation-mode\|zoom\|filter\)\>'
 
 " Webkit/Firebox specific properties/attributes
 syn keyword cssUIProp contained appearance
@@ -423,11 +424,15 @@ syn keyword cssAuralAttr contained male female child code digits continuous
 syn match cssMobileTextProp contained "\<text-size-adjust\>"
 
 syn keyword cssMediaProp contained width height orientation scan
-syn match cssMediaProp contained /\(\(max\|min\)-\)\=\(\(device\)-\)\=aspect-ratio/
-syn match cssMediaProp contained /\(\(max\|min\)-\)\=device-pixel-ratio/
-syn match cssMediaProp contained /\(\(max\|min\)-\)\=device-\(height\|width\)/
-syn match cssMediaProp contained /\(\(max\|min\)-\)\=\(height\|width\|resolution\|monochrome\|color\(-index\)\=\)/
+syn keyword cssMediaProp contained any-hover any-pointer color-gamut grid hover
+syn keyword cssMediaProp contained overflow-block overflow-inline pointer update
+syn match cssMediaProp contained /\<\(\(max\|min\)-\)\=\(\(device\)-\)\=aspect-ratio\>/
+syn match cssMediaProp contained /\<\(\(max\|min\)-\)\=device-pixel-ratio\>/
+syn match cssMediaProp contained /\<\(\(max\|min\)-\)\=device-\(height\|width\)\>/
+syn match cssMediaProp contained /\<\(\(max\|min\)-\)\=\(height\|width\|resolution\|monochrome\|color\(-index\)\=\)\>/
 syn keyword cssMediaAttr contained portrait landscape progressive interlace
+syn keyword cssMediaAttr contained coarse fast fine hover infinite p3 paged
+syn keyword cssMediaAttr contained rec2020 scroll slow srgb
 syn match cssKeyFrameProp contained /\(\d\+\(\.\d\+\)\?%\|\(\<from\|to\>\)\)/ nextgroup=cssDefinition
 syn match cssPageMarginProp /@\(\(top\|left\|right\|bottom\)-\(left\|center\|right\|middle\|bottom\)\)\(-corner\)\=/ contained nextgroup=cssDefinition
 syn keyword cssPageProp contained content size
@@ -445,17 +450,17 @@ syn match cssBraceError "}"
 syn match cssAttrComma ","
 
 " Pseudo class
-" http://www.w3.org/TR/css3-selectors/
+" https://www.w3.org/TR/selectors-4/
 syn match cssPseudoClass ":[A-Za-z0-9_-]*" contains=cssNoise,cssPseudoClassId,cssUnicodeEscape,cssVendor,cssPseudoClassFn
 syn keyword cssPseudoClassId contained link visited active hover before after left right
-syn keyword cssPseudoClassId contained root empty target enable disabled checked invalid
+syn keyword cssPseudoClassId contained root empty target enabled disabled checked invalid
 syn match cssPseudoClassId contained "\<first-\(line\|letter\)\>"
 syn match cssPseudoClassId contained "\<\(first\|last\|only\)-\(of-type\|child\)\>"
-syn region cssPseudoClassFn contained matchgroup=cssFunctionName start="\<\(not\|lang\|\(nth\|nth-last\)-\(of-type\|child\)\)(" end=")" contains=cssStringQ,cssStringQQ
+syn match cssPseudoClassId contained  "\<focus\(-within\|-visible\)\=\>"
+syn region cssPseudoClassFn contained matchgroup=cssFunctionName start="\<\(not\|is\|lang\|\(nth\|nth-last\)-\(of-type\|child\)\)(" end=")" contains=cssStringQ,cssStringQQ,cssTagName,cssAttributeSelector,cssClassName,cssIdentifier
 " ------------------------------------
 " Vendor specific properties
 syn match cssPseudoClassId contained  "\<selection\>"
-syn match cssPseudoClassId contained  "\<focus\(-inner\)\=\>"
 syn match cssPseudoClassId contained  "\<\(input-\)\=placeholder\>"
 
 " Misc highlight groups
diff --git a/runtime/syntax/i3config.vim b/runtime/syntax/i3config.vim
new file mode 100644
index 0000000000..a8b6637140
--- /dev/null
+++ b/runtime/syntax/i3config.vim
@@ -0,0 +1,256 @@
+" Vim syntax file
+" Language: i3 config file
+" Maintainer: Mohamed Boughaba <mohamed dot bgb at gmail dot com>
+" Version: 0.4
+" Last Change: 2021 Dec 14
+
+" References:
+" http://i3wm.org/docs/userguide.html#configuring
+" http://vimdoc.sourceforge.net/htmldoc/syntax.html
+"
+"
+" Quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
+endif
+
+scriptencoding utf-8
+
+" Error
+syn match i3ConfigError /.*/
+
+" Todo
+syn keyword i3ConfigTodo TODO FIXME XXX contained
+
+" Comment
+" Comments are started with a # and can only be used at the beginning of a line
+syn match i3ConfigComment /^\s*#.*$/ contains=i3ConfigTodo
+
+" Font
+" A FreeType font description is composed by:
+" a font family, a style, a weight, a variant, a stretch and a size.
+syn match i3ConfigFontSeparator /,/ contained
+syn match i3ConfigFontSeparator /:/ contained
+syn keyword i3ConfigFontKeyword font contained
+syn match i3ConfigFontNamespace /\w\+:/ contained contains=i3ConfigFontSeparator
+syn match i3ConfigFontContent /-\?\w\+\(-\+\|\s\+\|,\)/ contained contains=i3ConfigFontNamespace,i3ConfigFontSeparator,i3ConfigFontKeyword
+syn match i3ConfigFontSize /\s\=\d\+\(px\)\?\s\?$/ contained
+syn match i3ConfigFont /^\s*font\s\+.*$/ contains=i3ConfigFontContent,i3ConfigFontSeparator,i3ConfigFontSize,i3ConfigFontNamespace
+syn match i3ConfigFont /^\s*font\s\+.*\(\\\_.*\)\?$/ contains=i3ConfigFontContent,i3ConfigFontSeparator,i3ConfigFontSize,i3ConfigFontNamespace
+syn match i3ConfigFont /^\s*font\s\+.*\(\\\_.*\)\?[^\\]\+$/ contains=i3ConfigFontContent,i3ConfigFontSeparator,i3ConfigFontSize,i3ConfigFontNamespace
+syn match i3ConfigFont /^\s*font\s\+\(\(.*\\\_.*\)\|\(.*[^\\]\+$\)\)/ contains=i3ConfigFontContent,i3ConfigFontSeparator,i3ConfigFontSize,i3ConfigFontNamespace
+
+" variables
+syn match i3ConfigString /\(['"]\)\(.\{-}\)\1/ contained
+syn match i3ConfigColor /#\w\{6}/ contained
+syn match i3ConfigVariableModifier /+/ contained
+syn match i3ConfigVariableAndModifier /+\w\+/ contained contains=i3ConfigVariableModifier
+syn match i3ConfigVariable /\$\w\+\(\(-\w\+\)\+\)\?\(\s\|+\)\?/ contains=i3ConfigVariableModifier,i3ConfigVariableAndModifier
+syn keyword i3ConfigInitializeKeyword set contained
+syn match i3ConfigInitialize /^\s*set\s\+.*$/ contains=i3ConfigVariable,i3ConfigInitializeKeyword,i3ConfigColor,i3ConfigString
+
+" Gaps
+syn keyword i3ConfigGapStyleKeyword inner outer horizontal vertical top right bottom left current all set plus minus toggle up down contained
+syn match i3ConfigGapStyle /^\s*\(gaps\)\s\+\(inner\|outer\|horizontal\|vertical\|left\|top\|right\|bottom\)\(\s\+\(current\|all\)\)\?\(\s\+\(set\|plus\|minus\|toggle\)\)\?\(\s\+\(-\?\d\+\|\$.*\)\)$/ contains=i3ConfigGapStyleKeyword,i3ConfigNumber,i3ConfigVariable
+syn keyword i3ConfigSmartGapKeyword on inverse_outer contained
+syn match i3ConfigSmartGap /^\s*smart_gaps\s\+\(on\|inverse_outer\)\s\?$/ contains=i3ConfigSmartGapKeyword
+syn keyword i3ConfigSmartBorderKeyword on no_gaps contained
+syn match i3ConfigSmartBorder /^\