# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1664817304 -7200
# Node ID f68f43043842aee2a9051e891d006d61631e8ee1
# Parent  a7462ca00059aac3903e46db7f2bb317172e3928
Update runtime files

Commit: https://github.com/vim/vim/commit/f269eabc6c4f5bdcef989cd5b4b95ba8ccaa4d8a
Author: Bram Moolenaar <Bram@vim.org>
Date:   Mon Oct 3 18:04:35 2022 +0100

    Update runtime files

diff --git a/runtime/autoload/dist/vimindent.vim b/runtime/autoload/dist/vimindent.vim
--- a/runtime/autoload/dist/vimindent.vim
+++ b/runtime/autoload/dist/vimindent.vim
@@ -4,6 +4,11 @@ vim9script
 # Maintainer:   github user lacygoill
 # Last Change:  2022 Sep 24
 
+# NOTE: Whenever you change the code, make sure the tests are still passing:
+#
+#     $ cd runtime/indent/
+#     $ make clean; make test || vimdiff testdir/vim.{fail,ok}
+
 # Config {{{1
 
 const TIMEOUT: number = get(g:, 'vim_indent', {})
@@ -293,7 +298,7 @@ const START_MIDDLE_END: dict<list<string
 # EOL {{{2
 # OPENING_BRACKET_AT_EOL {{{3
 
-const OPENING_BRACKET_AT_EOL: string = $'{OPENING_BRACKET}{END_OF_VIM9_LINE}'
+const OPENING_BRACKET_AT_EOL: string = OPENING_BRACKET .. END_OF_VIM9_LINE
 
 # COMMA_AT_EOL {{{3
 
@@ -404,16 +409,15 @@ export def Expr(lnum: number): number # 
         line_A->CacheBracketBlock()
     endif
     if line_A.lnum->IsInside('BracketBlock')
-            && !b:vimindent.block_stack[0].is_curly_block
         for block: dict<any> in b:vimindent.block_stack
-            # Can't call `BracketBlockIndent()` before we're indenting a line *after* the start of the block.{{{
-            #
-            # That's because it might need  the correct indentation of the start
-            # of the block.   But if we're still *on* the  start, we haven't yet
-            # computed that indentation.
-            #}}}
-            if line_A.lnum > block.startlnum
-                    && !block.is_curly_block
+            if line_A.lnum <= block.startlnum
+                continue
+            endif
+            if !block->has_key('startindent')
+                block.startindent = Indent(block.startlnum)
+            endif
+            if !block.is_curly_block
+                    && !b:vimindent.block_stack[0].is_curly_block
                 return BracketBlockIndent(line_A, block)
             endif
         endfor
@@ -481,7 +485,7 @@ export def Expr(lnum: number): number # 
         cursor(line_A.lnum, 1)
 
         var [start: string, middle: string, end: string] = START_MIDDLE_END[kwd]
-        var block_start = SearchPairStart(start, middle, end)
+        var block_start: number = SearchPairStart(start, middle, end)
         if block_start > 0
             return Indent(block_start)
         else
@@ -535,10 +539,10 @@ def Offset( # {{{2
         # Indent twice for  a line continuation in the block  header itself, so that
         # we can easily  distinguish the end of  the block header from  the start of
         # the block body.
-        elseif line_B->EndsWithLineContinuation()
-                && !line_A.isfirst
-                || line_A.text =~ LINE_CONTINUATION_AT_SOL
-                && line_A.text !~ PLUS_MINUS_COMMAND
+        elseif (line_B->EndsWithLineContinuation()
+                && !line_A.isfirst)
+                || (line_A.text =~ LINE_CONTINUATION_AT_SOL
+                && line_A.text !~ PLUS_MINUS_COMMAND)
                 || line_A.text->Is_IN_KeywordForLoop(line_B.text)
             return 2 * shiftwidth()
         else
@@ -646,10 +650,6 @@ def CommentIndent(): number # {{{2
 enddef
 
 def BracketBlockIndent(line_A: dict<any>, block: dict<any>): number # {{{2
-    if !block->has_key('startindent')
-        block.startindent = block.startlnum->Indent()
-    endif
-
     var ind: number = block.startindent
 
     if line_A.text =~ CLOSING_BRACKET_AT_SOL
diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt*	For Vim version 9.0.  Last change: 2022 Sep 17
+*builtin.txt*	For Vim version 9.0.  Last change: 2022 Sep 30
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -6,9 +6,10 @@
 
 Builtin functions				*builtin-functions*
 
-Note: Expression evaluation can be disabled at compile time.  If this has been
-done, the builtin functions are not available.  See |+eval| and
-|no-eval-feature|.
+Note: Expression evaluation can be disabled at compile time, the builtin
+functions are not available then.  See |+eval| and |no-eval-feature|.
+
+For functions grouped by what they are used for see |function-list|.
 
 1. Overview				|builtin-function-list|
 2. Details				|builtin-function-details|
@@ -7035,13 +7036,19 @@ reg_recording()						*reg_recording()*
 		Returns the single letter name of the register being recorded.
 		Returns an empty string when not recording.  See |q|.
 
-reltime([{start} [, {end}]])				*reltime()*
+reltime()
+reltime({start})
+reltime({start}, {end})					*reltime()*
 		Return an item that represents a time value.  The item is a
 		list with items that depend on the system.  In Vim 9 script
 		list<any> can be used.
 		The item can be passed to |reltimestr()| to convert it to a
-		string or |reltimefloat()| to convert to a Float.
-
+		string or |reltimefloat()| to convert to a Float.  For
+		example, to see the time spent in function Work(): >
+			var startTime = reltime()
+			Work()
+			echo startTime->reltime()->reltimestr()
+<
 		Without an argument reltime() returns the current time (the
 		representation is system-dependent, it can not be used as the
 		wall-clock time, see |localtime()| for that).
@@ -7162,8 +7169,8 @@ remote_peek({serverid} [, {retvar}])		*r
 		This function is not available in the |sandbox|.
 		{only available when compiled with the |+clientserver| feature}
 		Examples: >
-			:let repl = ""
-			:echo "PEEK: " .. remote_peek(id, "repl") .. ": " .. repl
+		   :let repl = ""
+		   :echo "PEEK: " .. remote_peek(id, "repl") .. ": " .. repl
 
 <		Can also be used as a |method|: >
 			ServerId()->remote_peek()
@@ -7223,7 +7230,8 @@ remote_startserver({name})
 
 <		{only available when compiled with the |+clientserver| feature}
 
-remove({list}, {idx} [, {end}])				*remove()*
+remove({list}, {idx})
+remove({list}, {idx}, {end})				*remove()*
 		Without {end}: Remove the item at {idx} from |List| {list} and
 		return the item.
 		With {end}: Remove items from {idx} to {end} (inclusive) and
@@ -7241,7 +7249,8 @@ remove({list}, {idx} [, {end}])				*remo
 		Can also be used as a |method|: >
 			mylist->remove(idx)
 
-remove({blob}, {idx} [, {end}])
+remove({blob}, {idx})
+remove({blob}, {idx}, {end})
 		Without {end}: Remove the byte at {idx} from |Blob| {blob} and
 		return the byte.
 		With {end}: Remove bytes from {idx} to {end} (inclusive) and
diff --git a/runtime/doc/diff.txt b/runtime/doc/diff.txt
--- a/runtime/doc/diff.txt
+++ b/runtime/doc/diff.txt
@@ -1,4 +1,4 @@
-*diff.txt*      For Vim version 9.0.  Last change: 2022 Jan 22
+*diff.txt*      For Vim version 9.0.  Last change: 2022 Oct 01
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
diff --git a/runtime/doc/fold.txt b/runtime/doc/fold.txt
--- a/runtime/doc/fold.txt
+++ b/runtime/doc/fold.txt
@@ -1,4 +1,4 @@
-*fold.txt*      For Vim version 9.0.  Last change: 2022 Jan 22
+*fold.txt*      For Vim version 9.0.  Last change: 2022 Oct 01
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -503,7 +503,7 @@ is evaluated to obtain the text displaye
 
 This shows the first line of the fold, with "/*", "*/" and "{{{" removed.
 Note the use of backslashes to avoid some characters to be interpreted by the
-":set" command.  It's simpler to define a function and call that: >
+":set" command.  It is much simpler to define a function and call it: >
 
     :set foldtext=MyFoldText()
     :function MyFoldText()
@@ -512,6 +512,9 @@ Note the use of backslashes to avoid som
     :  return v:folddashes .. sub
     :endfunction
 
+The advantage of using a function call without arguments is that it is faster,
+see |expr-option-function|.
+
 Evaluating 'foldtext' is done in the |sandbox|.  The current window is set to
 the window that displays the line.  The context is set to the script where the
 option was last set.
diff --git a/runtime/doc/insert.txt b/runtime/doc/insert.txt
--- a/runtime/doc/insert.txt
+++ b/runtime/doc/insert.txt
@@ -1,4 +1,4 @@
-*insert.txt*    For Vim version 9.0.  Last change: 2022 Apr 06
+*insert.txt*    For Vim version 9.0.  Last change: 2022 Sep 30
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -667,7 +667,7 @@ When the popup menu is displayed there a
 |popupmenu-keys|.
 
 Note: The keys that are valid in CTRL-X mode are not mapped.  This allows for
-":map ^F ^X^F" to work (where ^F is CTRL-F and ^X is CTRL-X).  The key that
+`:map <C-F> <C-X><C-F>` to work (assuming "<" is not in 'cpo').  The key that
 ends CTRL-X mode (any key that is not a valid CTRL-X mode command) is mapped.
 Also, when doing completion with 'complete' mappings apply as usual.
 
@@ -677,11 +677,12 @@ buffer text cannot be changed.  Mappings
 will generate an E565 error.
 
 The following mappings are suggested to make typing the completion commands
-a bit easier (although they will hide other commands): >
-    :inoremap ^] ^X^]
-    :inoremap ^F ^X^F
-    :inoremap ^D ^X^D
-    :inoremap ^L ^X^L
+a bit easier (although they will hide other commands; this requires "<" is not
+in 'cpo'): >
+    :inoremap <C-]> <C-X><C-]>
+    :inoremap <C-F> <C-X><C-F>
+    :inoremap <C-D> <C-X><C-D>
+    :inoremap <C-L> <C-X><C-L>
 
 As a special case, typing CTRL-R to perform register insertion (see
 |i_CTRL-R|) will not exit CTRL-X mode.  This is primarily to allow the use of
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 9.0.  Last change: 2022 Sep 27
+*options.txt*	For Vim version 9.0.  Last change: 2022 Oct 03
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -2942,7 +2942,7 @@ A jump table for the options with a shor
 'display' 'dy'		string	(default "", set to "truncate" in
 							       |defaults.vim|)
 			global
-	Change the way text is displayed.  This is comma-separated list of
+	Change the way text is displayed.  This is a comma-separated list of
 	flags:
 	lastline	When included, as much as possible of the last line
 			in a window will be displayed.  "@@@" is put in the
@@ -7307,8 +7307,10 @@ A jump table for the options with a shor
 			local to window
 	Scrolling works with screen lines.  When 'wrap' is set and the first
 	line in the window wraps part of it may not be visible, as if it is
-	above the window.
-	NOTE: only partly implemented, works with CTRL-E and CTRL-Y.
+	above the window. "<<<" is displayed at the start of the first line,
+	highlighted with |hl-NonText|.
+	NOTE: only partly implemented, currently works with CTRL-E, CTRL-Y
+	and scrolling with the mouse.
 
 					*'softtabstop'* *'sts'*
 'softtabstop' 'sts'	number	(default 0)
diff --git a/runtime/doc/os_vms.txt b/runtime/doc/os_vms.txt
--- a/runtime/doc/os_vms.txt
+++ b/runtime/doc/os_vms.txt
@@ -1,4 +1,4 @@
-*os_vms.txt*    For Vim version 9.0.  Last change: 2021 Jan 04
+*os_vms.txt*    For Vim version 9.0.  Last change: 2022 Sep 30
 
 
 		  VIM REFERENCE MANUAL
@@ -331,10 +331,10 @@ 8.16 Common VIM directory - different ar
 8.1 Backspace/delete
 
 There are backspace/delete key inconsistencies with VMS.
-:fixdel doesn't do the trick, but the solution is: >
+:fixdel doesn't do the trick, but the solution is (without "<" in 'cpo'): >
 
-	:inoremap ^? ^H		" for terminal mode
-	:inoremap <Del> ^H	" for gui mode
+	:inoremap <C-?> <C-H>	" for terminal mode
+	:inoremap <Del> <C-H>	" for gui mode
 
 Read more in ch: 8.6 (Terminal problems).
 (Bruce Hunsaker <BNHunsaker@chq.byu.edu> Vim 5.3)
diff --git a/runtime/doc/print.txt b/runtime/doc/print.txt
--- a/runtime/doc/print.txt
+++ b/runtime/doc/print.txt
@@ -1,4 +1,4 @@
-*print.txt*     For Vim version 9.0.  Last change: 2022 Jan 23
+*print.txt*     For Vim version 9.0.  Last change: 2022 Oct 01
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
diff --git a/runtime/doc/quickref.txt b/runtime/doc/quickref.txt
--- a/runtime/doc/quickref.txt
+++ b/runtime/doc/quickref.txt
@@ -1,4 +1,4 @@
-*quickref.txt*  For Vim version 9.0.  Last change: 2022 Sep 14
+*quickref.txt*  For Vim version 9.0.  Last change: 2022 Oct 02
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1,4 +1,4 @@
-*syntax.txt*	For Vim version 9.0.  Last change: 2022 Sep 26
+*syntax.txt*	For Vim version 9.0.  Last change: 2022 Oct 03
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -5376,10 +5376,11 @@ ModeMsg		'showmode' message (e.g., "-- I
 							*hl-MoreMsg*
 MoreMsg		|more-prompt|
 							*hl-NonText*
-NonText		'@' at the end of the window, characters from 'showbreak'
-		and other characters that do not really exist in the text
-		(e.g., ">" displayed when a double-wide character doesn't
-		fit at the end of the line).
+NonText		'@' at the end of the window, "<<<" at the start of the window
+		for 'smoothscroll', characters from 'showbreak' and other
+		characters that do not really exist in the text, such as the
+		">" displayed when a double-wide character doesn't fit at the
+		end of the line.
 							*hl-Normal*
 Normal		Normal text.
 							*hl-Pmenu*
diff --git a/runtime/doc/tags b/runtime/doc/tags
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -714,14 +714,14 @@
 'nosmartindent'	options.txt	/*'nosmartindent'*
 'nosmarttab'	options.txt	/*'nosmarttab'*
 'nosmd'	options.txt	/*'nosmd'*
+'nosmoothscroll'	options.txt	/*'nosmoothscroll'*
+'nosms'	options.txt	/*'nosms'*
 'nosn'	options.txt	/*'nosn'*
 'nosol'	options.txt	/*'nosol'*
 'nospell'	options.txt	/*'nospell'*
 'nosplitbelow'	options.txt	/*'nosplitbelow'*
 'nosplitright'	options.txt	/*'nosplitright'*
-'nosplitscroll'	options.txt	/*'nosplitscroll'*
 'nospr'	options.txt	/*'nospr'*
-'nospsc'	options.txt	/*'nospsc'*
 'nosr'	options.txt	/*'nosr'*
 'nossl'	options.txt	/*'nossl'*
 'nosta'	options.txt	/*'nosta'*
@@ -938,6 +938,8 @@
 'smarttab'	options.txt	/*'smarttab'*
 'smc'	options.txt	/*'smc'*
 'smd'	options.txt	/*'smd'*
+'smoothscroll'	options.txt	/*'smoothscroll'*
+'sms'	options.txt	/*'sms'*
 'sn'	options.txt	/*'sn'*
 'so'	options.txt	/*'so'*
 'softtabstop'	options.txt	/*'softtabstop'*
@@ -954,12 +956,11 @@
 'spf'	options.txt	/*'spf'*
 'spl'	options.txt	/*'spl'*
 'splitbelow'	options.txt	/*'splitbelow'*
+'splitkeep'	options.txt	/*'splitkeep'*
 'splitright'	options.txt	/*'splitright'*
-'splitscroll'	options.txt	/*'splitscroll'*
 'spo'	options.txt	/*'spo'*
 'spr'	options.txt	/*'spr'*
 'sps'	options.txt	/*'sps'*
-'spsc'	options.txt	/*'spsc'*
 'sr'	options.txt	/*'sr'*
 'srr'	options.txt	/*'srr'*
 'ss'	options.txt	/*'ss'*
@@ -4345,6 +4346,7 @@ E1303	map.txt	/*E1303*
 E1304	vim9.txt	/*E1304*
 E1305	textprop.txt	/*E1305*
 E1306	vim9.txt	/*E1306*
+E1307	vim9.txt	/*E1307*
 E131	userfunc.txt	/*E131*
 E132	userfunc.txt	/*E132*
 E133	userfunc.txt	/*E133*
@@ -6777,6 +6779,7 @@ expr-lambda	eval.txt	/*expr-lambda*
 expr-nesting	eval.txt	/*expr-nesting*
 expr-number	eval.txt	/*expr-number*
 expr-option	eval.txt	/*expr-option*
+expr-option-function	vim9.txt	/*expr-option-function*
 expr-quote	eval.txt	/*expr-quote*
 expr-register	eval.txt	/*expr-register*
 expr-star	eval.txt	/*expr-star*
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -1,4 +1,4 @@
-*todo.txt*      For Vim version 9.0.  Last change: 2022 Sep 27
+*todo.txt*      For Vim version 9.0.  Last change: 2022 Oct 03
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -38,55 +38,40 @@ browser use: https://github.com/vim/vim/
 							*known-bugs*
 -------------------- Known bugs and current work -----------------------
 
-From test_global
-        Found errors in Test_interrupt_global():
-        Run 1, 02:16:22 - 02:16:27:
-        command line..script /home/mool/vim/vim90/src/testdir/runtest.vim[469]..function RunTheTest[44]..Test_interrupt_global[13]..WaitForAssert[2]..<SNR>7_WaitForCommon[11]..<lambda>20 line 1: Pattern 'Interrupted' does not match 'Type  :qa!  and press...l changes and exit Vim           1,1           All'
-        command line..script /home/mool/vim/vim90/src/testdir/runtest.vim[469]..function RunTheTest[44]..Test_interrupt_global[20]..WaitForAssert[2]..<SNR>7_WaitForCommon[11]..<lambda>21 line 1: Pattern 'Interrupted' does not match 'Entering Ex mode.  Type "visual" to go to Normal mode.'
+'smoothscroll':
+- computing 'scrolloff' position row use w_skipcol
+
+Add a string to the 'display' option ("smoothscroll" ?) to make CTRL-E and
+CTRL-Y scroll one screen line, also if this means the first line doesn't start
+with the first character (like what happens with a last line that doesn't
+fit).  Display "<<<" at the start of the first visible line (like "@@@" is
+displayed in the last line). (Arseny Nasokin,  #5154)
+Neovim PR: https://github.com/neovim/neovim/pull/11014
 
 Use :defer command:
     - Use "D" flag of writefile() and mkdir() in tests.
-	(testdir/test_e*.vim done)
-
-New Vim indent script: #11079  OK? 
+	(testdir/test_p*.vim done)
+
+Fix for powershell: #11257
+
+Change boolean 'splitscroll' into string 'splitkeep'. #11258
+
 
 Further Vim9 improvements, possibly after launch:
-- For map(), reduce() and filter() use a specific implementation if the second
-  argument is a compiled function.  #11163
 - Use Vim9 for more runtime files.
-- Check performance with callgrind and kcachegrind.
-    getline()/substitute()/setline() in #5632
-- Better implementation for partial and tests for that.
-- when using "const" mark the variable type as const with TTFLAG_CONST, so
-  that an error is given at compile time when trying to change it.  E.g. for a
-  const list and trying to call add().
-- Compile options that are an expression, e.g. "expr:" in 'spellsuggest',
-  'foldexpr', 'foldtext', 'printexpr', 'diffexpr', 'patchexpr', 'charconvert',
-  'balloonexpr', 'includeexpr', 'indentexpr', 'formatexpr'.
-  Give an error if compilation fails. (#7625)
-  Alternatively: Detect a compiled function call and skip the expression
-  evaluation.
-  Use the location where the option was set for deciding whether it's to be
-  evaluated in Vim9 script context.
 - implement :type
 - implement :enum
 - implement :class and :interface: See |vim9-classes|
-- For range: make table of first ASCII character with flag to quickly check if
-  it can be a Vim9 command. E.g. "+" can, but "." can't.
 - Inline call to map() and filter(), better type checking.
-- Make accessing varargs faster: arg[expr]
-	EVAL expr
-	LOADVARARG (varargs idx)
 - When evaluating constants for script variables, some functions could work:
     has(featureName), len(someString)
 - Implement as part of an expression: ++expr, --expr, expr++, expr--.
 
 Popup windows:
-- Preview popup not properly updated when it overlaps with completion menu.
-  (Yegappan Lakshmanan, 2021 May 22)
-- Scrollbar thumb sometimes not visible  #10492
 - Add a function to redraw a specific popup window.  Esp. to be used when
   editing the command line, when screen updating doesn't happen. (Shougo)
+  #10210  Probably need to update all popup windows (they may overlap)
+  If the display is scrolled need to redraw everything later.
 - Add a flag to make a popup window focusable?
     CTRL-W P cycle over any preview window or focusable popup, end up back in
 	     current window.
@@ -113,8 +98,6 @@ Popup windows:
     - put popup menu also in popup_mask?
 - Match does not have right BG color if line length equals popup width.
   (#5658)
-- Any other commands to disable in a popup window?
-  Use ERROR_IF_POPUP_WINDOW for these.
 - Figure out the size and position better if wrapping inserts indent
 
 'incsearch' with :s:
@@ -203,13 +186,6 @@ Add BufDeletePost.  #11041
 Test property disappears when using CR twice in a row.  OK when some text was
 entered. (#11151)
 
-Add a string to the 'display' option ("smoothscroll" ?) to make CTRL-E and
-CTRL-Y scroll one screen line, also if this means the first line doesn't start
-with the first character (like what happens with a last line that doesn't
-fit).  Display "<<<" at the start of the first visible line (like "@@@" is
-displayed in the last line). (Arseny Nasokin,  #5154)
-Neovim PR: https://github.com/neovim/neovim/pull/11014
-
 NFA regexp does not handle composing characters well: #10286
     [ɔ̃] matches both ɔ and ɔ̃
     \(ɔ\|ɔ̃\) matches ɔ and not ɔ̃
@@ -681,9 +657,6 @@ when possible. (Dylan Lloyd, #3973)
 Make ":interactive !cmd" stop termcap mode, also when used in an autocommand.
 (#3692)
 
-matchaddpos() gets slow with many matches.  Proposal by Rick Howe, 2018 Jul
-19.
-
 Add something like 'fillchars' local to window, but allow for specifying a
 highlight name.  Esp. for the statusline.
 And "extends" and "precedes" are also useful without 'list' set.  Also in
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -1,4 +1,4 @@
-*vim9.txt*	For Vim version 9.0.  Last change: 2022 Sep 19
+*vim9.txt*	For Vim version 9.0.  Last change: 2022 Oct 03
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -502,7 +502,7 @@ How constants work varies between langua
 can't be assigned another value a constant.  JavaScript is an example.  Others
 also make the value immutable, thus when a constant uses a list, the list
 cannot be changed.  In Vim9 we can use both.
-							*E1021*
+							*E1021* *E1307*
 `:const` is used for making both the variable and the value a constant.  Use
 this for composite structures that you want to make sure will not be modified.
 Example: >
@@ -1413,11 +1413,11 @@ to a Vim9 function:
 
 Calling a function in an expr option ~
 							*expr-option-function*
-A few options, such as 'foldexpr', are an expresison that is evaluated to get
-a value.  The evaluation can have quite a bit of overhead.  One way to
-minimize the overhead, and also to keep the option value very simple, is to
-defined a compiled function and set the option to call it without arguments.
-Example: >
+The value of a few options, such as 'foldexpr', is an expression that is
+evaluated to get a value.  The evaluation can have quite a bit of overhead.
+One way to minimize the overhead, and also to keep the option value very
+simple, is to define a compiled function and set the option to call it
+without arguments.  Example: >
 	vim9script
 	def MyFoldFunc(): any
 	   ... compute fold level for line v:lnum
diff --git a/runtime/ftplugin/erlang.vim b/runtime/ftplugin/erlang.vim
--- a/runtime/ftplugin/erlang.vim
+++ b/runtime/ftplugin/erlang.vim
@@ -5,7 +5,7 @@
 " Contributors: Ricardo Catalinas Jiménez <jimenezrick@gmail.com>
 "               Eduardo Lopez (http://github.com/tapichu)
 "               Arvid Bjurklint (http://github.com/slarwise)
-" Last Update:  2021-Jan-08
+" Last Update:  2021-Nov-22
 " License:      Vim license
 " URL:          https://github.com/vim-erlang/vim-erlang-runtime
 
@@ -30,6 +30,28 @@ 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/runtime/ftplugin/man.vim b/runtime/ftplugin/man.vim
--- a/runtime/ftplugin/man.vim
+++ b/runtime/ftplugin/man.vim
@@ -3,7 +3,7 @@
 " Maintainer:	Jason Franklin <vim@justemail.net>
 " Maintainer:	SungHyun Nam <goweol@gmail.com>
 " Autoload Split: Bram Moolenaar
-" Last Change: 	2022 Jun 18
+" Last Change: 	2022 Sep 30
 
 " To make the ":Man" command available before editing a manual page, source
 " this script from your startup vimrc file.
@@ -23,8 +23,9 @@ let s:cpo_save = &cpo
 set cpo-=C
 
 if &filetype == "man"
-  " allow dot and dash in manual page name.
-  setlocal iskeyword+=\.,-
+  " Allow hyphen, plus, colon, dot, and commercial at in manual page name.
+  " Allow parentheses for references.
+  setlocal iskeyword=48-57,_,a-z,A-Z,-,+,:,.,@-@,(,)
   let b:undo_ftplugin = "setlocal iskeyword<"
 
   " Add mappings, unless the user didn't want this.
diff --git a/runtime/indent/erlang.vim b/runtime/indent/erlang.vim
--- a/runtime/indent/erlang.vim
+++ b/runtime/indent/erlang.vim
@@ -4,7 +4,7 @@
 " Contributors: Edwin Fine <efine145_nospam01 at usa dot net>
 "               Pawel 'kTT' Salata <rockplayer.pl@gmail.com>
 "               Ricardo Catalinas Jiménez <jimenezrick@gmail.com>
-" Last Update:  2020-Jun-11
+" Last Update:  2022-Sep-06
 " License:      Vim license
 " URL:          https://github.com/vim-erlang/vim-erlang-runtime
 
@@ -30,7 +30,9 @@ else
 endif
 
 setlocal indentexpr=ErlangIndent()
-setlocal indentkeys+=0=end,0=of,0=catch,0=after,0=when,0=),0=],0=},0=>>
+setlocal indentkeys+=0=end,0=of,0=catch,0=after,0=else,0=when,0=),0=],0=},0=>>
+
+let b:undo_indent = "setl inde< indk<"
 
 " Only define the functions once
 if exists("*ErlangIndent")
@@ -235,8 +237,8 @@ function! s:GetTokensFromLine(line, stri
 
     " Two-character tokens
     elseif i + 1 < linelen &&
-         \ index(['->', '<<', '>>', '||', '==', '/=', '=<', '>=', '++', '--',
-         \        '::'],
+         \ index(['->', '<<', '>>', '||', '==', '/=', '=<', '>=', '?=', '++',
+         \        '--', '::'],
          \       a:line[i : i + 1]) != -1
       call add(indtokens, [a:line[i : i + 1], vcol, i])
       let next_i = i + 2
@@ -558,8 +560,8 @@ function! s:IsCatchStandalone(lnum, i)
     let is_standalone = 0
   elseif prev_token =~# '[a-z]'
     if index(['after', 'and', 'andalso', 'band', 'begin', 'bnot', 'bor', 'bsl',
-            \ 'bsr', 'bxor', 'case', 'catch', 'div', 'not', 'or', 'orelse',
-            \ 'rem', 'try', 'xor'], prev_token) != -1
+            \ 'bsr', 'bxor', 'case', 'catch', 'div', 'maybe', 'not', 'or',
+            \ 'orelse', 'rem', 'try', 'xor'], prev_token) != -1
       " If catch is after these keywords, it is standalone
       let is_standalone = 1
     else
@@ -568,7 +570,7 @@ function! s:IsCatchStandalone(lnum, i)
       "
       " Keywords:
       " - may precede 'catch': end
-      " - may not precede 'catch': fun if of receive when
+      " - may not precede 'catch': else fun if of receive when
       " - unused: cond let query
       let is_standalone = 0
     endif
@@ -577,7 +579,7 @@ function! s:IsCatchStandalone(lnum, i)
     let is_standalone = 0
   else
     " This 'else' branch includes the following tokens:
-    "   -> == /= =< < >= > =:= =/= + - * / ++ -- :: < > ; ( [ { ? = ! . |
+    "   -> == /= =< < >= > ?= =:= =/= + - * / ++ -- :: < > ; ( [ { ? = ! . |
     let is_standalone = 1
   endif
 
@@ -590,6 +592,7 @@ endfunction
 " Purpose:
 "   This function is called when a begin-type element ('begin', 'case',
 "   '[', '<<', etc.) is found. It asks the caller to return if the stack
+"   if already empty.
 " Parameters:
 "   stack: [token]
 "   token: string
@@ -758,7 +761,7 @@ endfunction
 function! s:SearchEndPair(lnum, curr_col)
   return s:SearchPair(
          \ a:lnum, a:curr_col,
-         \ '\C\<\%(case\|try\|begin\|receive\|if\)\>\|' .
+         \ '\C\<\%(case\|try\|begin\|receive\|if\|maybe\)\>\|' .
          \ '\<fun\>\%(\s\|\n\|%.*$\|[A-Z_@][a-zA-Z_@]*\)*(',
          \ '',
          \ '\<end\>')
@@ -847,6 +850,7 @@ function! s:ErlangCalcIndent2(lnum, stac
         if ret | return res | endif
 
       " case EXPR of BRANCHES end
+      " if BRANCHES end
       " try EXPR catch BRANCHES end
       " try EXPR after BODY end
       " try EXPR catch BRANCHES after BODY end
@@ -855,15 +859,17 @@ function! s:ErlangCalcIndent2(lnum, stac
       " try EXPR of BRANCHES catch BRANCHES after BODY end
       " receive BRANCHES end
       " receive BRANCHES after BRANCHES end
+      " maybe EXPR end
+      " maybe EXPR else BRANCHES end
 
       " This branch is not Emacs-compatible
-      elseif (index(['of', 'receive', 'after', 'if'], token) != -1 ||
+      elseif (index(['of', 'receive', 'after', 'if', 'else'], token) != -1 ||
            \  (token ==# 'catch' && !s:IsCatchStandalone(lnum, i))) &&
            \ !last_token_of_line &&
            \ (empty(stack) || stack ==# ['when'] || stack ==# ['->'] ||
            \  stack ==# ['->', ';'])
 
-        " If we are after of/receive, but these are not the last
+        " If we are after of/receive/etc, but these are not the last
         " tokens of the line, we want to indent like this:
         "
         "   % stack == []
@@ -889,21 +895,21 @@ function! s:ErlangCalcIndent2(lnum, stac
         " stack = ['when']  =>  LTI is a guard
         if empty(stack) || stack == ['->', ';']
           call s:Log('    LTI is in a condition after ' .
-                    \'"of/receive/after/if/catch" -> return')
+                    \'"of/receive/after/if/else/catch" -> return')
           return stored_vcol
         elseif stack == ['->']
           call s:Log('    LTI is in a branch after ' .
-                    \'"of/receive/after/if/catch" -> return')
+                    \'"of/receive/after/if/else/catch" -> return')
           return stored_vcol + shiftwidth()
         elseif stack == ['when']
           call s:Log('    LTI is in a guard after ' .
-                    \'"of/receive/after/if/catch" -> return')
+                    \'"of/receive/after/if/else/catch" -> return')
           return stored_vcol + shiftwidth()
         else
           return s:UnexpectedToken(token, stack)
         endif
 
-      elseif index(['case', 'if', 'try', 'receive'], token) != -1
+      elseif index(['case', 'if', 'try', 'receive', 'maybe'], token) != -1
 
         " stack = []  =>  LTI is a condition
         " stack = ['->']  =>  LTI is a branch
@@ -913,45 +919,47 @@ function! s:ErlangCalcIndent2(lnum, stac
           " pass
         elseif (token ==# 'case' && stack[0] ==# 'of') ||
              \ (token ==# 'if') ||
+             \ (token ==# 'maybe' && stack[0] ==# 'else') ||
              \ (token ==# 'try' && (stack[0] ==# 'of' ||
              \                     stack[0] ==# 'catch' ||
              \                     stack[0] ==# 'after')) ||
              \ (token ==# 'receive')
 
           " From the indentation point of view, the keyword
-          " (of/catch/after/end) before the LTI is what counts, so
+          " (of/catch/after/else/end) before the LTI is what counts, so
           " when we reached these tokens, and the stack already had
-          " a catch/after/end, we didn't modify it.
+          " a catch/after/else/end, we didn't modify it.
           "
-          " This way when we reach case/try/receive (i.e. now),
-          " there is at most one of/catch/after/end token in the
+          " This way when we reach case/try/receive/maybe (i.e. now),
+          " there is at most one of/catch/after/else/end token in the
           " stack.
           if token ==# 'case' || token ==# 'try' ||
-           \ (token ==# 'receive' && stack[0] ==# 'after')
+           \ (token ==# 'receive' && stack[0] ==# 'after') ||
+           \ (token ==# 'maybe' && stack[0] ==# 'else')
             call s:Pop(stack)
           endif
 
           if empty(stack)
             call s:Log('    LTI is in a condition; matching ' .
-                      \'"case/if/try/receive" found')
+                      \'"case/if/try/receive/maybe" found')
             let stored_vcol = curr_vcol + shiftwidth()
           elseif stack[0] ==# 'align_to_begin_element'
             call s:Pop(stack)
             let stored_vcol = curr_vcol
           elseif len(stack) > 1 && stack[0] ==# '->' && stack[1] ==# ';'
             call s:Log('    LTI is in a condition; matching ' .
-                      \'"case/if/try/receive" found')
+                      \'"case/if/try/receive/maybe" found')
             call s:Pop(stack)
             call s:Pop(stack)
             let stored_vcol = curr_vcol + shiftwidth()
           elseif stack[0] ==# '->'
             call s:Log('    LTI is in a branch; matching ' .
-                      \'"case/if/try/receive" found')
+                      \'"case/if/try/receive/maybe" found')
             call s:Pop(stack)
             let stored_vcol = curr_vcol + 2 * shiftwidth()
           elseif stack[0] ==# 'when'
             call s:Log('    LTI is in a guard; matching ' .
-                      \'"case/if/try/receive" found')
+                      \'"case/if/try/receive/maybe" found')
             call s:Pop(stack)
             let stored_vcol = curr_vcol + 2 * shiftwidth() + 2
           endif
@@ -1213,7 +1221,7 @@ function! s:ErlangCalcIndent2(lnum, stac
 
         if empty(stack)
           call s:Push(stack, ';')
-        elseif index([';', '->', 'when', 'end', 'after', 'catch'],
+        elseif index([';', '->', 'when', 'end', 'after', 'catch', 'else'],
                     \stack[0]) != -1
           " Pass:
           "
@@ -1223,10 +1231,10 @@ function! s:ErlangCalcIndent2(lnum, stac
           "   should keep that, because they signify the type of the
           "   LTI (branch, condition or guard).
           " - From the indentation point of view, the keyword
-          "   (of/catch/after/end) before the LTI is what counts, so
-          "   if the stack already has a catch/after/end, we don't
-          "   modify it. This way when we reach case/try/receive,
-          "   there will be at most one of/catch/after/end token in
+          "   (of/catch/after/else/end) before the LTI is what counts, so
+          "   if the stack already has a catch/after/else/end, we don't
+          "   modify it. This way when we reach case/try/receive/maybe,
+          "   there will be at most one of/catch/after/else/end token in
           "   the stack.
         else
           return s:UnexpectedToken(token, stack)
@@ -1242,7 +1250,8 @@ function! s:ErlangCalcIndent2(lnum, stac
           " stack = ['->']  ->  LTI is a condition
           " stack = ['->', ';']  -> LTI is a branch
           call s:Push(stack, '->')
-        elseif index(['->', 'when', 'end', 'after', 'catch'], stack[0]) != -1
+        elseif index(['->', 'when', 'end', 'after', 'catch', 'else'],
+                    \stack[0]) != -1
           " Pass:
           "
           " - If the stack top is another '->', then one '->' is
@@ -1250,10 +1259,10 @@ function! s:ErlangCalcIndent2(lnum, stac
           " - If the stack top is a 'when', then we should keep
           "   that, because this signifies that LTI is a in a guard.
           " - From the indentation point of view, the keyword
-          "   (of/catch/after/end) before the LTI is what counts, so
-          "   if the stack already has a catch/after/end, we don't
-          "   modify it. This way when we reach case/try/receive,
-          "   there will be at most one of/catch/after/end token in
+          "   (of/catch/after/else/end) before the LTI is what counts, so
+          "   if the stack already has a catch/after/else/end, we don't
+          "   modify it. This way when we reach case/try/receive/maybe,
+          "   there will be at most one of/catch/after/else/end token in
           "   the stack.
         else
           return s:UnexpectedToken(token, stack)
@@ -1283,7 +1292,8 @@ function! s:ErlangCalcIndent2(lnum, stac
             "       LTI
             call s:Push(stack, token)
           endif
-        elseif index(['->', 'when', 'end', 'after', 'catch'], stack[0]) != -1
+        elseif index(['->', 'when', 'end', 'after', 'catch', 'else'],
+                    \stack[0]) != -1
           " Pass:
           " - If the stack top is another 'when', then one 'when' is
           "   enough.
@@ -1291,21 +1301,63 @@ function! s:ErlangCalcIndent2(lnum, stac
           "   should keep that, because they signify the type of the
           "   LTI (branch, condition or guard).
           " - From the indentation point of view, the keyword
-          "   (of/catch/after/end) before the LTI is what counts, so
-          "   if the stack already has a catch/after/end, we don't
-          "   modify it. This way when we reach case/try/receive,
-          "   there will be at most one of/catch/after/end token in
+          "   (of/catch/after/else/end) before the LTI is what counts, so
+          "   if the stack already has a catch/after/else/end, we don't
+          "   modify it. This way when we reach case/try/receive/maybe,
+          "   there will be at most one of/catch/after/else/end token in
           "   the stack.
         else
           return s:UnexpectedToken(token, stack)
         endif
 
-      elseif token ==# 'of' || token ==# 'after' ||
+      elseif token ==# 'of' || token ==# 'after' || token ==# 'else' ||
            \ (token ==# 'catch' && !s:IsCatchStandalone(lnum, i))
 
-        if token ==# 'after'
-          " If LTI is between an 'after' and the corresponding
-          " 'end', then let's return
+        if token ==# 'after' || token ==# 'else'
+          " If LTI is between an after/else and the corresponding 'end', then
+          " let's return because calculating the indentation based on
+          " after/else is enough.
+          "
+          " Example:
+          "   receive A after
+          "                 LTI
+          "   maybe A else
+          "               LTI
+          "
+          " Note about Emacs compabitility {{{
+          "
+          " It would be fine to indent the examples above the following way:
+          "
+          "   receive A after
+          "       LTI
+          "   maybe A else
+          "       LTI
+          "
+          " We intend it the way above because that is how Emacs does it.
+          " Also, this is a bit faster.
+          "
+          " We are still not 100% Emacs compatible because of placing the
+          " 'end' after the indented blocks.
+          "
+          " Emacs example:
+          "
+          "   receive A after
+          "                 LTI
+          "             end,
+          "   maybe A else
+          "               LTI
+          "               end % Yes, it's here (in OTP 25.0, might change
+          "                   % later)
+          "
+          " vim-erlang example:
+          "
+          "   receive A after
+          "                 LTI
+          "   end,
+          "   maybe A else
+          "               LTI
+          "   end
+          " }}}
           let [ret, res] = s:BeginElementFoundIfEmpty(stack, token, curr_vcol,
                                                      \stored_vcol, shiftwidth())
           if ret | return res | endif
@@ -1313,7 +1365,8 @@ function! s:ErlangCalcIndent2(lnum, stac
 
         if empty(stack) || stack[0] ==# '->' || stack[0] ==# 'when'
           call s:Push(stack, token)
-        elseif stack[0] ==# 'catch' || stack[0] ==# 'after' || stack[0] ==# 'end'
+        elseif stack[0] ==# 'catch' || stack[0] ==# 'after' ||
+              \stack[0] ==# 'else' || stack[0] ==# 'end'
           " Pass: From the indentation point of view, the keyword
           " (of/catch/after/end) before the LTI is what counts, so
           " if the stack already has a catch/after/end, we don't
@@ -1403,7 +1456,7 @@ function! ErlangIndent()
   endif
 
   let ml = matchlist(currline,
-                    \'^\(\s*\)\(\%(end\|of\|catch\|after\)\>\|[)\]}]\|>>\)')
+                    \'^\(\s*\)\(\%(end\|of\|catch\|after\|else\)\>\|[)\]}]\|>>\)')
 
   " If the line has a special beginning, but not a standalone catch
   if !empty(ml) && !(ml[2] ==# 'catch' && s:IsCatchStandalone(v:lnum, 0))
diff --git a/runtime/indent/testdir/vim.in b/runtime/indent/testdir/vim.in
--- a/runtime/indent/testdir/vim.in
+++ b/runtime/indent/testdir/vim.in
@@ -857,3 +857,15 @@ b: 2}]
 silent! argdel *
 edit file
 " END_INDENT
+
+" START_INDENT
+def Foo()
+Bar(1,
+[]->filter((_, v) => {
+return true
+}),
+() => {
+echo
+})
+enddef
+" END_INDENT
diff --git a/runtime/indent/testdir/vim.ok b/runtime/indent/testdir/vim.ok
--- a/runtime/indent/testdir/vim.ok
+++ b/runtime/indent/testdir/vim.ok
@@ -857,3 +857,15 @@ endfor
 silent! argdel *
 edit file
 " END_INDENT
+
+" START_INDENT
+def Foo()
+    Bar(1,
+	[]->filter((_, v) => {
+	    return true
+	}),
+	() => {
+	    echo
+	})
+enddef
+" END_INDENT
diff --git a/runtime/optwin.vim b/runtime/optwin.vim
--- 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:	2022 Sep 11
+" Last Change:	2022 Oct 02
 
 " If there already is an option window, jump to that one.
 let buf = bufnr('option-window')
diff --git a/runtime/plugin/manpager.vim b/runtime/plugin/manpager.vim
--- a/runtime/plugin/manpager.vim
+++ b/runtime/plugin/manpager.vim
@@ -1,6 +1,6 @@
 " Vim plugin for using Vim as manpager.
 " Maintainer: Enno Nagel <ennonagel+vim@gmail.com>
-" Last Change: 2022 Jun 17
+" Last Change: 2022 Sep 30
 
 " Set up the current buffer (likely read from stdin) as a manpage
 command MANPAGER call s:ManPager()
@@ -18,9 +18,6 @@ function s:ManPager()
   " Make this an unlisted, readonly scratch buffer
   setlocal buftype=nofile noswapfile bufhidden=hide nobuflisted readonly
 
-  " Is this useful?  Should allow for using K on word with a colon.
-  setlocal iskeyword+=:
-
   " Ensure text width matches window width
   setlocal foldcolumn& nofoldenable nonumber norelativenumber
 
@@ -44,6 +41,6 @@ function s:ManPager()
   setlocal nomodified nomodifiable
 
   " Set filetype to man even if ftplugin is disabled
-  setlocal iskeyword+=: filetype=man
+  setlocal filetype=man
   runtime ftplugin/man.vim
 endfunction
diff --git a/runtime/syntax/erlang.vim b/runtime/syntax/erlang.vim
--- a/runtime/syntax/erlang.vim
+++ b/runtime/syntax/erlang.vim
@@ -2,7 +2,7 @@
 " Language:     Erlang (http://www.erlang.org)
 " Maintainer:   Csaba Hoch <csaba.hoch@gmail.com>
 " Contributor:  Adam Rutkowski <hq@mtod.org>
-" Last Update:  2020-May-26
+" Last Update:  2022-Sep-06
 " License:      Vim license
 " URL:          https://github.com/vim-erlang/vim-erlang-runtime
 
@@ -61,7 +61,8 @@ syn match erlangQuotedAtomModifier '\\\%
 syn match erlangModifier           '\$\%([^\\]\|\\\%(\o\{1,3}\|x\x\x\|x{\x\+}\|\^.\|.\)\)'
 
 " Operators, separators
-syn match erlangOperator   '==\|=:=\|/=\|=/=\|<\|=<\|>\|>=\|=>\|:=\|++\|--\|=\|!\|<-\|+\|-\|\*\|\/'
+syn match erlangOperator   '==\|=:=\|/=\|=/=\|<\|=<\|>\|>=\|=>\|:=\|?=\|++\|--\|=\|!\|<-\|+\|-\|\*\|\/'
+syn match erlangEqualsBinary '=<<\%(<\)\@!'
 syn keyword erlangOperator div rem or xor bor bxor bsl bsr and band not bnot andalso orelse
 syn match erlangBracket    '{\|}\|\[\|]\||\|||'
 syn match erlangPipe       '|'
@@ -76,7 +77,8 @@ syn match erlangGlobalFuncCall '\<\%(\a[
 syn match erlangGlobalFuncRef  '\<\%(\a[[:alnum:]_@]*\%(\s\|\n\|%.*\n\)*\.\%(\s\|\n\|%.*\n\)*\)*\a[[:alnum:]_@]*\%(\s\|\n\|%.*\n\)*:\%(\s\|\n\|%.*\n\)*\a[[:alnum:]_@]*\>\%(\%(\s\|\n\|%.*\n\)*/\)\@=' contains=erlangComment,erlangVariable
 
 " Variables, macros, records, maps
-syn match erlangVariable '\<[A-Z_][[:alnum:]_@]*'
+syn match erlangVariable '\<[A-Z][[:alnum:]_@]*'
+syn match erlangAnonymousVariable '\<_[[:alnum:]_@]*'
 syn match erlangMacro    '??\=[[:alnum:]_@]\+'
 syn match erlangMacro    '\%(-define(\)\@<=[[:alnum:]_@]\+'
 syn region erlangQuotedMacro         start=/??\=\s*'/ end=/'/ contains=erlangQuotedAtomModifier
@@ -92,7 +94,7 @@ syn match erlangBitType '\%(\/\%(\s\|\n\
 
 " Constants and Directives
 syn match erlangUnknownAttribute '^\s*-\%(\s\|\n\|%.*\n\)*\l[[:alnum:]_@]*' contains=erlangComment
-syn match erlangAttribute '^\s*-\%(\s\|\n\|%.*\n\)*\%(behaviou\=r\|compile\|export\(_type\)\=\|file\|import\|module\|author\|copyright\|doc\|vsn\|on_load\|optional_callbacks\)\>' contains=erlangComment
+syn match erlangAttribute '^\s*-\%(\s\|\n\|%.*\n\)*\%(behaviou\=r\|compile\|export\(_type\)\=\|file\|import\|module\|author\|copyright\|doc\|vsn\|on_load\|optional_callbacks\|feature\)\>' contains=erlangComment
 syn match erlangInclude   '^\s*-\%(\s\|\n\|%.*\n\)*\%(include\|include_lib\)\>' contains=erlangComment
 syn match erlangRecordDef '^\s*-\%(\s\|\n\|%.*\n\)*record\>' contains=erlangComment
 syn match erlangDefine    '^\s*-\%(\s\|\n\|%.*\n\)*\%(define\|undef\)\>' contains=erlangComment
@@ -100,8 +102,8 @@ syn match erlangPreCondit '^\s*-\%(\s\|\
 syn match erlangType      '^\s*-\%(\s\|\n\|%.*\n\)*\%(spec\|type\|opaque\|callback\)\>' contains=erlangComment
 
 " Keywords
-syn keyword erlangKeyword after begin case catch cond end fun if let of
-syn keyword erlangKeyword receive when try
+syn keyword erlangKeyword after begin case catch cond end fun if let of else
+syn keyword erlangKeyword receive when try maybe
 
 " Build-in-functions (BIFs)
 syn keyword erlangBIF abs alive apply atom_to_binary atom_to_list contained
@@ -174,6 +176,7 @@ hi def link erlangModifier Special
 
 " Operators, separators
 hi def link erlangOperator Operator
+hi def link erlangEqualsBinary ErrorMsg
 hi def link erlangRightArrow Operator
 if s:old_style
 hi def link erlangBracket Normal
@@ -191,6 +194,7 @@ hi def link erlangLocalFuncRef Normal
 hi def link erlangGlobalFuncCall Function
 hi def link erlangGlobalFuncRef Function
 hi def link erlangVariable Normal
+hi def link erlangAnonymousVariable erlangVariable
 hi def link erlangMacro Normal
 hi def link erlangQuotedMacro Normal
 hi def link erlangRecord Normal
@@ -203,6 +207,7 @@ hi def link erlangLocalFuncRef Normal
 hi def link erlangGlobalFuncCall Normal
 hi def link erlangGlobalFuncRef Normal
 hi def link erlangVariable Identifier
+hi def link erlangAnonymousVariable erlangVariable
 hi def link erlangMacro Macro
 hi def link erlangQuotedMacro Macro
 hi def link erlangRecord Structure
diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -1,8 +1,8 @@
 " Vim syntax file
 " Language:	Vim 9.0 script
 " Maintainer:	Charles E. Campbell <NcampObell@SdrPchip.AorgM-NOSPAM>
-" Last Change:	September 14, 2022
-" Version:	9.0-05
+" Last Change:	October 03, 2022
+" Version:	9.0-07
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_VIM
 " Automatically generated keyword lists: {{{1
 
@@ -30,23 +30,23 @@ syn match   vimCommand contained	"\<z[-+
 syn keyword vimStdPlugin contained	Arguments Asm Break Cfilter Clear Continue DiffOrig Evaluate Finish Gdb Lfilter Man N[ext] Over P[rint] Program Run S Source Step Stop Termdebug TermdebugCommand TOhtml Until Winbar XMLent XMLns
 
 " vimOptions are caught only when contained in a vimSet {{{2
-syn keyword vimOption contained	acd ambw arshape aw backupskip beval bk bri bufhidden cdh ci cinsd cms commentstring conceallevel cpt cscopetagorder csto cursorlineopt dg dir ed enc errorfile fcl fdn ffs fillchars fo foldmarker formatoptions gdefault gp guifontwide helpheight history hlsearch imaf ims includeexpr infercase iskeyword keywordprg laststatus lispwords lrm magic maxfuncdepth menuitems mm modifiable mousemev mps nu opendevice paste pex pmbfn printencoding pt pythonhome quoteescape renderoptions rlc ruf scb scrolloff selectmode shellquote shiftwidth showmode sj sn spellfile splitscroll ssl stmp swapsync synmaxcol tagcase tbi termbidi textauto thesaurusfunc titlestring tpm ttimeoutlen ttyscroll tx undolevels vartabstop vfile virtualedit warn wfh wildchar wim winminheight wmh write
-syn keyword vimOption contained	ai anti asd awa balloondelay bevalterm bkc briopt buflisted cdhome cin cinw co compatible confirm crb cscopeverbose csverb cwh dict directory edcompatible encoding errorformat fcs fdo fic fixendofline foldclose foldmethod formatprg gfm grepformat guiheadroom helplang hk ic imak imsearch incsearch insertmode isp km lazyredraw list ls makeef maxmapdepth mfd mmd modified mousemodel msm number operatorfunc pastetoggle pexpr popt printexpr pumheight pythonthreedll rdt report rnu ruler scf scrollopt sessionoptions shellredir shm showtabline slm so spelllang spo ssop sts swb syntax tagfunc tbidi termencoding textmode tildeop tl tr ttm ttytype uc undoreload vb vi visualbell wb wfw wildcharm winaltkeys winminwidth wmnu writeany
-syn keyword vimOption contained	akm antialias autochdir background ballooneval bex bl brk buftype cdpath cindent cinwords cocu complete copyindent cryptmethod csl cuc debug dictionary display ef endofline esckeys fdc fdt fileencoding fixeol foldcolumn foldminlines fp gfn grepprg guiligatures hf hkmap icon imc imsf inde is isprint kmp lbr listchars lsp makeencoding maxmem mh mmp more mousemoveevent mzq numberwidth opfunc patchexpr pfn pp printfont pumwidth pythonthreehome re restorescreen ro rulerformat scl scs sft shellslash shortmess shq sm softtabstop spelloptions spr st su swf ta taglength tbis termguicolors textwidth timeout tm ts tty tw udf updatecount vbs viewdir vop wc wh wildignore wincolor winptydll wmw writebackup
-syn keyword vimOption contained	al ar autoindent backspace balloonevalterm bexpr bo browsedir casemap cedit cink clipboard cole completefunc cot cscopepathcomp cspc cul deco diff dy efm eol et fde fen fileencodings fk foldenable foldnestmax fs gfs gtl guioptions hh hkmapp iconstring imcmdline imst indentexpr isf joinspaces kp lcs lm luadll makeprg maxmempattern mis mmt mouse mouses mzquantum nuw osfiletype patchmode ph preserveindent printheader pvh pyx readonly revins rop runtimepath scr sect sh shelltemp shortname si smartcase sol spellsuggest sps sta sua switchbuf tabline tagrelative tbs termwinkey tf timeoutlen to tsl ttybuiltin twk udir updatetime vdir viewoptions vsts wcm whichwrap wildignorecase window winwidth wop writedelay
-syn keyword vimOption contained	aleph arab autoread backup balloonexpr bg bomb bs cb cf cinkeys cm colorcolumn completeopt cp cscopeprg csprg culopt def diffexpr ea ei ep eventignore fdi fenc fileformat fkmap foldexpr foldopen fsync gfw gtt guipty hi hkp ignorecase imd imstatusfunc indentkeys isfname js langmap linebreak lmap lw mat maxmemtot mkspellmem mod mousef mouseshape mzschemedll odev pa path pheader previewheight printmbcharset pvp pyxversion redrawtime ri rs sb scroll sections shcf shelltype showbreak sidescroll smartindent sp spf spsc stal suffixes sws tabpagemax tags tc termwinscroll tfu title toolbar tsr ttyfast tws ul ur ve vif vts wcr wi wildmenu winfixheight wiv wrap ws
-syn keyword vimOption contained	allowrevins arabic autoshelldir backupcopy bdir bh breakat bsdir cc cfu cino cmdheight columns completepopup cpo cscopequickfix csqf cursorbind define diffopt ead ek equalalways ex fdl fencs fileformats flp foldignore foldtext ft ghr guicursor guitablabel hid hl im imdisable imstyle indk isi key langmenu lines lnr lz matchpairs mco ml modeline mousefocus mouset mzschemegcdll oft packpath pdev pi previewpopup printmbfont pvw qe regexpengine rightleft rtp sbo scrollbind secure shell shellxescape showcmd sidescrolloff smarttab spc spl sr startofline suffixesadd sxe tabstop tagstack tcldll termwinsize tgc titlelen toolbariconsize tsrfu ttym twsl undodir ut verbose viminfo wa wd wic wildmode winfixwidth wiw wrapmargin ww
-syn keyword vimOption contained	altkeymap arabicshape autowrite backupdir bdlay bin breakindent bsk ccv ch cinoptions cmdwinheight com completeslash cpoptions cscoperelative csre cursorcolumn delcombine digraph eadirection emo equalprg expandtab fdls fex fileignorecase fml foldlevel formatexpr gcr gli guifont guitabtooltip hidden hlg imactivatefunc imi inc inex isident keymap langnoremap linespace loadplugins ma matchtime mef mle modelineexpr mousehide mousetime nf ofu para penc pm previewwindow printoptions pw qftf relativenumber rightleftcmd ru sbr scrollfocus sel shellcmdflag shellxquote showfulltag signcolumn smc spell splitbelow srr statusline sw sxq tag tal tenc termwintype tgst titleold top ttimeout ttymouse twt undofile varsofttabstop verbosefile viminfofile wak weirdinvert wig wildoptions winheight wm wrapscan xtermcodes
-syn keyword vimOption contained	ambiwidth ari autowriteall backupext belloff binary breakindentopt bt cd charconvert cinscopedecls cmp comments concealcursor cpp cscopetag cst cursorline dex dip eb emoji errorbells exrc fdm ff filetype fmr foldlevelstart formatlistpat gd go guifontset helpfile highlight hls imactivatekey iminsert include inf isk keymodel langremap lisp lpl macatsui maxcombine menc mls modelines mousem mp nrformats omnifunc paragraphs perldll pmbcs printdevice prompt pythondll quickfixtextfunc remap rl rubydll sc scrolljump selection shellpipe shiftround showmatch siso smd spellcapcheck splitright ss stl swapfile syn tagbsearch tb term terse thesaurus
+syn keyword vimOption contained	acd ambw arshape aw backupskip beval bk bri bufhidden cdh ci cinsd cms commentstring conceallevel cpt cscopetagorder csto cursorlineopt dg dir ed enc errorfile fcl fdn ffs fillchars fo foldmarker formatoptions gdefault gp guifontwide helpheight history hlsearch imaf ims includeexpr infercase iskeyword keywordprg laststatus lispwords lrm magic maxfuncdepth menuitems mm modifiable mousemev mps nu opendevice paste pex pmbfn printencoding pt pythonhome quoteescape renderoptions rlc ruf scb scrolloff selectmode shellquote shiftwidth showmode sj smoothscroll spell spl srr statusline sw sxq tag tal tenc termwintype tgst titleold tpm ttimeoutlen ttyscroll tx undolevels vartabstop vfile virtualedit warn wfh wildchar wim winminheight wmh write
+syn keyword vimOption contained	ai anti asd awa balloondelay bevalterm bkc briopt buflisted cdhome cin cinw co compatible confirm crb cscopeverbose csverb cwh dict directory edcompatible encoding errorformat fcs fdo fic fixendofline foldclose foldmethod formatprg gfm grepformat guiheadroom helplang hk ic imak imsearch incsearch insertmode isp km lazyredraw list ls makeef maxmapdepth mfd mmd modified mousemodel msm number operatorfunc pastetoggle pexpr popt printexpr pumheight pythonthreedll rdt report rnu ruler scf scrollopt sessionoptions shellredir shm showtabline slm sms spellcapcheck splitbelow ss stl swapfile syn tagbsearch tb term terse thesaurus titlestring tr ttm ttytype uc undoreload vb vi visualbell wb wfw wildcharm winaltkeys winminwidth wmnu writeany
+syn keyword vimOption contained	akm antialias autochdir background ballooneval bex bl brk buftype cdpath cindent cinwords cocu complete copyindent cryptmethod csl cuc debug dictionary display ef endofline esckeys fdc fdt fileencoding fixeol foldcolumn foldminlines fp gfn grepprg guiligatures hf hkmap icon imc imsf inde is isprint kmp lbr listchars lsp makeencoding maxmem mh mmp more mousemoveevent mzq numberwidth opfunc patchexpr pfn pp printfont pumwidth pythonthreehome re restorescreen ro rulerformat scl scs sft shellslash shortmess shq sm sn spellfile splitkeep ssl stmp swapsync synmaxcol tagcase tbi termbidi textauto thesaurusfunc tl ts tty tw udf updatecount vbs viewdir vop wc wh wildignore wincolor winptydll wmw writebackup
+syn keyword vimOption contained	al ar autoindent backspace balloonevalterm bexpr bo browsedir casemap cedit cink clipboard cole completefunc cot cscopepathcomp cspc cul deco diff dy efm eol et fde fen fileencodings fk foldenable foldnestmax fs gfs gtl guioptions hh hkmapp iconstring imcmdline imst indentexpr isf joinspaces kp lcs lm luadll makeprg maxmempattern mis mmt mouse mouses mzquantum nuw osfiletype patchmode ph preserveindent printheader pvh pyx readonly revins rop runtimepath scr sect sh shelltemp shortname si smartcase so spelllang splitright ssop sts swb syntax tagfunc tbidi termencoding textmode tildeop tm tsl ttybuiltin twk udir updatetime vdir viewoptions vsts wcm whichwrap wildignorecase window winwidth wop writedelay
+syn keyword vimOption contained	aleph arab autoread backup balloonexpr bg bomb bs cb cf cinkeys cm colorcolumn completeopt cp cscopeprg csprg culopt def diffexpr ea ei ep eventignore fdi fenc fileformat fkmap foldexpr foldopen fsync gfw gtt guipty hi hkp ignorecase imd imstatusfunc indentkeys isfname js langmap linebreak lmap lw mat maxmemtot mkspellmem mod mousef mouseshape mzschemedll odev pa path pheader previewheight printmbcharset pvp pyxversion redrawtime ri rs sb scroll sections shcf shelltype showbreak sidescroll smartindent softtabstop spelloptions spo st su swf ta taglength tbis termguicolors textwidth timeout to tsr ttyfast tws ul ur ve vif vts wcr wi wildmenu winfixheight wiv wrap ws
+syn keyword vimOption contained	allowrevins arabic autoshelldir backupcopy bdir bh breakat bsdir cc cfu cino cmdheight columns completepopup cpo cscopequickfix csqf cursorbind define diffopt ead ek equalalways ex fdl fencs fileformats flp foldignore foldtext ft ghr guicursor guitablabel hid hl im imdisable imstyle indk isi key langmenu lines lnr lz matchpairs mco ml modeline mousefocus mouset mzschemegcdll oft packpath pdev pi previewpopup printmbfont pvw qe regexpengine rightleft rtp sbo scrollbind secure shell shellxescape showcmd sidescrolloff smarttab sol spellsuggest spr sta sua switchbuf tabline tagrelative tbs termwinkey tf timeoutlen toolbar tsrfu ttym twsl undodir ut verbose viminfo wa wd wic wildmode winfixwidth wiw wrapmargin ww
+syn keyword vimOption contained	altkeymap arabicshape autowrite backupdir bdlay bin breakindent bsk ccv ch cinoptions cmdwinheight com completeslash cpoptions cscoperelative csre cursorcolumn delcombine digraph eadirection emo equalprg expandtab fdls fex fileignorecase fml foldlevel formatexpr gcr gli guifont guitabtooltip hidden hlg imactivatefunc imi inc inex isident keymap langnoremap linespace loadplugins ma matchtime mef mle modelineexpr mousehide mousetime nf ofu para penc pm previewwindow printoptions pw qftf relativenumber rightleftcmd ru sbr scrollfocus sel shellcmdflag shellxquote showfulltag signcolumn smc sp spf sps stal suffixes sws tabpagemax tags tc termwinscroll tfu title toolbariconsize ttimeout ttymouse twt undofile varsofttabstop verbosefile viminfofile wak weirdinvert wig wildoptions winheight wm wrapscan xtermcodes
+syn keyword vimOption contained	ambiwidth ari autowriteall backupext belloff binary breakindentopt bt cd charconvert cinscopedecls cmp comments concealcursor cpp cscopetag cst cursorline dex dip eb emoji errorbells exrc fdm ff filetype fmr foldlevelstart formatlistpat gd go guifontset helpfile highlight hls imactivatekey iminsert include inf isk keymodel langremap lisp lpl macatsui maxcombine menc mls modelines mousem mp nrformats omnifunc paragraphs perldll pmbcs printdevice prompt pythondll quickfixtextfunc remap rl rubydll sc scrolljump selection shellpipe shiftround showmatch siso smd spc spk sr startofline suffixesadd sxe tabstop tagstack tcldll termwinsize tgc titlelen top
 
 " vimOptions: These are the turn-off setting variants {{{2
-syn keyword vimOption contained	noacd noallowrevins noantialias noarabic noarshape noautoindent noautowrite noawa noballoonevalterm nobin nobl nobri noci nocompatible nocp nocscopetag nocst nocul nocursorline nodg noea noedcompatible noemoji noequalalways noet noexrc nofileignorecase nofk nofs nogdefault nohidden nohkmapp nohlsearch noignorecase noimcmdline noincsearch noinsertmode nojs nolazyredraw nolisp noloadplugins nolz nomagic nomle nomodelineexpr nomore nomousehide noodev nopaste nopreserveindent noprompt noreadonly noremap norevins norightleft nornu nors noruler nosc noscf noscrollfocus nosecure noshellslash noshiftround noshowcmd noshowmatch nosi nosmartcase nosmarttab nosn nospell nosplitright nospr nosr nosta nostmp noswf notagbsearch notagstack notbidi notermbidi notextauto notf notildeop notitle notop nottimeout nottyfast noudf novb nowa nowb nowfh nowic nowildmenu nowinfixwidth nowmnu nowrapscan nowriteany nows
-syn keyword vimOption contained	noai noaltkeymap noar noarabicshape noasd noautoread noautowriteall nobackup nobeval nobinary nobomb nobuflisted nocin noconfirm nocrb nocscopeverbose nocsverb nocursorbind nodeco nodiff noeb noek noendofline noerrorbells noex nofen nofixendofline nofkmap nofsync noguipty nohk nohkp noic noim noimd noinf nois nolangnoremap nolbr nolist nolpl noma nomh nomod nomodifiable nomousef nonu noopendevice nopi nopreviewwindow nopvw norelativenumber norestorescreen nori norl noro noru nosb noscb noscrollbind noscs nosft noshelltemp noshortname noshowfulltag noshowmode nosm nosmartindent nosmd nosol nosplitbelow nosplitscroll nospsc nossl nostartofline noswapfile nota notagrelative notbi notbs noterse notextmode notgst notimeout noto notr nottybuiltin notx noundofile novisualbell nowarn noweirdinvert nowfw nowildignorecase nowinfixheight nowiv nowrap nowrite nowritebackup noxtermcodes
+syn keyword vimOption contained	noacd noallowrevins noantialias noarabic noarshape noautoindent noautowrite noawa noballoonevalterm nobin nobl nobri noci nocompatible nocp nocscopetag nocst nocul nocursorline nodg noea noedcompatible noemoji noequalalways noet noexrc nofileignorecase nofk nofs nogdefault nohidden nohkmapp nohlsearch noignorecase noimcmdline noincsearch noinsertmode nojs nolazyredraw nolisp noloadplugins nolz nomagic nomle nomodelineexpr nomore nomousehide noodev nopaste nopreserveindent noprompt noreadonly noremap norevins norightleft nornu nors noruler nosc noscf noscrollfocus nosecure noshellslash noshiftround noshowcmd noshowmatch nosi nosmartcase nosmarttab nosmoothscroll nosn nospell nosplitright nosr nosta nostmp noswf notagbsearch notagstack notbidi notermbidi notextauto notf notildeop notitle notop nottimeout nottyfast noudf novb nowa nowb nowfh nowic nowildmenu nowinfixwidth nowmnu nowrapscan nowriteany nows
+syn keyword vimOption contained	noai noaltkeymap noar noarabicshape noasd noautoread noautowriteall nobackup nobeval nobinary nobomb nobuflisted nocin noconfirm nocrb nocscopeverbose nocsverb nocursorbind nodeco nodiff noeb noek noendofline noerrorbells noex nofen nofixendofline nofkmap nofsync noguipty nohk nohkp noic noim noimd noinf nois nolangnoremap nolbr nolist nolpl noma nomh nomod nomodifiable nomousef nonu noopendevice nopi nopreviewwindow nopvw norelativenumber norestorescreen nori norl noro noru nosb noscb noscrollbind noscs nosft noshelltemp noshortname noshowfulltag noshowmode nosm nosmartindent nosmd nosms nosol nosplitbelow nospr nossl nostartofline noswapfile nota notagrelative notbi notbs noterse notextmode notgst notimeout noto notr nottybuiltin notx noundofile novisualbell nowarn noweirdinvert nowfw nowildignorecase nowinfixheight nowiv nowrap nowrite nowritebackup noxtermcodes
 syn keyword vimOption contained	noakm noanti noarab noari noautochdir noautoshelldir noaw noballooneval nobevalterm nobk nobreakindent nocf nocindent nocopyindent nocscoperelative nocsre nocuc nocursorcolumn nodelcombine nodigraph noed noemo noeol noesckeys noexpandtab nofic nofixeol nofoldenable nogd nohid nohkmap nohls noicon noimc noimdisable noinfercase nojoinspaces nolangremap nolinebreak nolnr nolrm nomacatsui noml nomodeline nomodified nomousefocus nonumber
 
 " vimOptions: These are the invertible variants {{{2
-syn keyword vimOption contained	invacd invallowrevins invantialias invarabic invarshape invautoindent invautowrite invawa invballoonevalterm invbin invbl invbri invci invcompatible invcp invcscopetag invcst invcul invcursorline invdg invea invedcompatible invemoji invequalalways invet invexrc invfileignorecase invfk invfs invgdefault invhidden invhkmapp invhlsearch invignorecase invimcmdline invincsearch invinsertmode invjs invlazyredraw invlisp invloadplugins invlz invmagic invmle invmodelineexpr invmore invmousehide invodev invpaste invpreserveindent invprompt invreadonly invremap invrevins invrightleft invrnu invrs invruler invsc invscf invscrollfocus invsecure invshellslash invshiftround invshowcmd invshowmatch invsi invsmartcase invsmarttab invsn invspell invsplitright invspr invsr invsta invstmp invswf invtagbsearch invtagstack invtbidi invtermbidi invtextauto invtf invtildeop invtitle invtop invttimeout invttyfast invudf invvb invwa invwb invwfh invwic invwildmenu invwinfixwidth invwmnu invwrapscan invwriteany invws
-syn keyword vimOption contained	invai invaltkeymap invar invarabicshape invasd invautoread invautowriteall invbackup invbeval invbinary invbomb invbuflisted invcin invconfirm invcrb invcscopeverbose invcsverb invcursorbind invdeco invdiff inveb invek invendofline inverrorbells invex invfen invfixendofline invfkmap invfsync invguipty invhk invhkp invic invim invimd invinf invis invlangnoremap invlbr invlist invlpl invma invmh invmod invmodifiable invmousef invnu invopendevice invpi invpreviewwindow invpvw invrelativenumber invrestorescreen invri invrl invro invru invsb invscb invscrollbind invscs invsft invshelltemp invshortname invshowfulltag invshowmode invsm invsmartindent invsmd invsol invsplitbelow invsplitscroll invspsc invssl invstartofline invswapfile invta invtagrelative invtbi invtbs invterse invtextmode invtgst invtimeout invto invtr invttybuiltin invtx invundofile invvisualbell invwarn invweirdinvert invwfw invwildignorecase invwinfixheight invwiv invwrap invwrite invwritebackup invxtermcodes
+syn keyword vimOption contained	invacd invallowrevins invantialias invarabic invarshape invautoindent invautowrite invawa invballoonevalterm invbin invbl invbri invci invcompatible invcp invcscopetag invcst invcul invcursorline invdg invea invedcompatible invemoji invequalalways invet invexrc invfileignorecase invfk invfs invgdefault invhidden invhkmapp invhlsearch invignorecase invimcmdline invincsearch invinsertmode invjs invlazyredraw invlisp invloadplugins invlz invmagic invmle invmodelineexpr invmore invmousehide invodev invpaste invpreserveindent invprompt invreadonly invremap invrevins invrightleft invrnu invrs invruler invsc invscf invscrollfocus invsecure invshellslash invshiftround invshowcmd invshowmatch invsi invsmartcase invsmarttab invsmoothscroll invsn invspell invsplitright invsr invsta invstmp invswf invtagbsearch invtagstack invtbidi invtermbidi invtextauto invtf invtildeop invtitle invtop invttimeout invttyfast invudf invvb invwa invwb invwfh invwic invwildmenu invwinfixwidth invwmnu invwrapscan invwriteany invws
+syn keyword vimOption contained	invai invaltkeymap invar invarabicshape invasd invautoread invautowriteall invbackup invbeval invbinary invbomb invbuflisted invcin invconfirm invcrb invcscopeverbose invcsverb invcursorbind invdeco invdiff inveb invek invendofline inverrorbells invex invfen invfixendofline invfkmap invfsync invguipty invhk invhkp invic invim invimd invinf invis invlangnoremap invlbr invlist invlpl invma invmh invmod invmodifiable invmousef invnu invopendevice invpi invpreviewwindow invpvw invrelativenumber invrestorescreen invri invrl invro invru invsb invscb invscrollbind invscs invsft invshelltemp invshortname invshowfulltag invshowmode invsm invsmartindent invsmd invsms invsol invsplitbelow invspr invssl invstartofline invswapfile invta invtagrelative invtbi invtbs invterse invtextmode invtgst invtimeout invto invtr invttybuiltin invtx invundofile invvisualbell invwarn invweirdinvert invwfw invwildignorecase invwinfixheight invwiv invwrap invwrite invwritebackup invxtermcodes
 syn keyword vimOption contained	invakm invanti invarab invari invautochdir invautoshelldir invaw invballooneval invbevalterm invbk invbreakindent invcf invcindent invcopyindent invcscoperelative invcsre invcuc invcursorcolumn invdelcombine invdigraph inved invemo inveol invesckeys invexpandtab invfic invfixeol invfoldenable invgd invhid invhkmap invhls invicon invimc invimdisable invinfercase invjoinspaces invlangremap invlinebreak invlnr invlrm invmacatsui invml invmodeline invmodified invmousefocus invnumber
 
 " termcap codes (which can also be set) {{{2
@@ -401,7 +401,7 @@ syn match	vimSetMod	contained	"&vim\=\|[
 " Let: {{{2
 " ===
 syn keyword	vimLet	let	unl[et]	skipwhite nextgroup=vimVar,vimFuncVar,vimLetHereDoc
-VimFoldh syn region vimLetHereDoc	matchgroup=vimLetHereDocStart start='=<<\s\+\%(trim\s\+\)\=\%(eval\s\+\)\=\z(\L\S*\)'	matchgroup=vimLetHereDocStop end='^\s*\z1\s*$'
+VimFoldh syn region vimLetHereDoc	matchgroup=vimLetHereDocStart start='=<<\s\+\%(trim\s\+\)\=\%(eval\s\+\)\=\s*\z(\L\S*\)'	matchgroup=vimLetHereDocStop end='^\s*\z1\s*$'
 
 " Abbreviations: {{{2
 " =============
@@ -649,7 +649,7 @@ syn match	vimCtrlChar	"[
--]"
 
 " Beginners - Patterns that involve ^ {{{2
 " =========
-syn match	vimLineComment	+^[ \t:]*".*$+	contains=@vimCommentGroup,vimCommentString,vimCommentTitle
+syn match	vimLineComment	+^[ \t:]*"\("[^"]*"\|[^"]\)*$+	contains=@vimCommentGroup,vimCommentString,vimCommentTitle
 syn match	vim9LineComment	+^[ \t:]\+#.*$+	contains=@vimCommentGroup,vimCommentString,vimCommentTitle
 syn match	vimCommentTitle	'"\s*\%([sS]:\|\h\w*#\)\=\u\w*\(\s\+\u\w*\)*:'hs=s+1	contained contains=vimCommentTitleLeader,vimTodo,@vimCommentGroup
 syn match	vimContinue	"^\s*\\"