vim-patch:1b884a005398

Update runtime files.
https://github.com/vim/vim/commit/1b884a0053982335f644eec6c71027706bf3c522

Omit doc/autocmd.txt.
Omit tools/emoji_list.vim. Patch v8.2.1540 is not ported.

9 files changed, 93 insertions, 48 deletions

diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 55ffe2f189..38a5e9c2dc 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -4242,9 +4242,9 @@ getbufvar({expr}, {varname} [, {def}])				*getbufvar()*
 		The result is the value of option or local buffer variable
 		{varname} in buffer {expr}.  Note that the name without "b:"
 		must be used.
-		When {varname} is empty returns a dictionary with all the
+		When {varname} is empty returns a |Dictionary| with all the
 		buffer-local variables.
-		When {varname} is equal to "&" returns a dictionary with all
+		When {varname} is equal to "&" returns a |Dictionary| with all
 		the buffer-local options.
 		Otherwise, when {varname} starts with "&" returns the value of
 		a buffer-local option.
@@ -4624,8 +4624,9 @@ getloclist({nr},[, {what}])				*getloclist()*
 		field is applicable only when called from a location list
 		window. See |location-list-file-window| for more details.
 
-		Returns an empty Dictionary if there is no location list for
-		the window {nr} or the window is not present.
+		Returns a |Dictionary| with default values if there is no
+		location list for the window {nr}.
+		Returns an empty Dictionary if window {nr} does not exist.
 
 		Examples (See also |getqflist-examples|): >
 			:echo getloclist(3, {'all': 0})
@@ -4701,7 +4702,7 @@ getpos({expr})	Get the position for {expr}.  For possible values of {expr}
 
 
 getqflist([{what}])					*getqflist()*
-		Returns a list with all the current quickfix errors.  Each
+		Returns a |List| with all the current quickfix errors.  Each
 		list item is a dictionary with these entries:
 			bufnr	number of buffer that has the file name, use
 				bufname() to get the name
@@ -8703,7 +8704,7 @@ tagfiles()	Returns a |List| with the file names used to search for tags
 
 
 taglist({expr} [, {filename}])				*taglist()*
-		Returns a list of tags matching the regular expression {expr}.
+		Returns a |List| of tags matching the regular expression {expr}.
 
 		If {filename} is passed it is used to prioritize the results
 		in the same way that |:tselect| does. See |tag-priority|.
@@ -9097,7 +9098,7 @@ wildmenumode()					*wildmenumode()*
 
 
 win_findbuf({bufnr})					*win_findbuf()*
-		Returns a list with |window-ID|s for windows that contain
+		Returns a |List| with |window-ID|s for windows that contain
 		buffer {bufnr}.  When there is none the list is empty.
 
 win_getid([{win} [, {tab}]])				*win_getid()*
diff --git a/runtime/doc/helphelp.txt b/runtime/doc/helphelp.txt
index ab14023137..aafeb91906 100644
--- a/runtime/doc/helphelp.txt
+++ b/runtime/doc/helphelp.txt
@@ -162,6 +162,25 @@ files in the directories specified in the 'runtimepath' option.
 The initial height of the help window can be set with the 'helpheight' option
 (default 20).
 
+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 '|'
+    'foldmethod'	"manual"
+    'tabstop'		8
+    'arabic'		off
+    'binary'		off
+    'buflisted'		off
+    'cursorbind'	off
+    'diff'		off
+    'foldenable'	off
+    'list'		off
+    'modifiable'	off
+    'number'		off
+    'relativenumber'	off
+    'rightleft'		off
+    'scrollbind'	off
+    'spell'		off
+
 Jump to specific subjects by using tags.  This can be done in two ways:
 - Use the "CTRL-]" command while standing on the name of a command or option.
   This only works when the tag is a keyword.  "<C-Leftmouse>" and
diff --git a/runtime/doc/map.txt b/runtime/doc/map.txt
index ce5e4dc73c..2c16263a1c 100644
--- a/runtime/doc/map.txt
+++ b/runtime/doc/map.txt
@@ -798,7 +798,7 @@ otherwise it is interpreted as two key presses:
 1.11 MAPPING AN OPERATOR				*:map-operator*
 
 An operator is used before a {motion} command.  To define your own operator
-you must create mapping that first sets the 'operatorfunc' option and then
+you must create a mapping that first sets the 'operatorfunc' option and then
 invoke the |g@| operator.  After the user types the {motion} command the
 specified function will be called.
 
@@ -1200,15 +1200,15 @@ last defined. Example: >
 See |:verbose-cmd| for more information.
 
 							*E174* *E182*
-:com[mand][!] [{attr}...] {cmd} {rep}
+:com[mand][!] [{attr}...] {cmd} {repl}
 			Define a user command.  The name of the command is
-			{cmd} and its replacement text is {rep}.  The command's
-			attributes (see below) are {attr}.  If the command
-			already exists, an error is reported, unless a ! is
-			specified, in which case the command is redefined.
-			There is one exception: When sourcing a script again,
-			a command that was previously defined in that script
-			will be silently replaced.
+			{cmd} and its replacement text is {repl}.  The
+			command's attributes (see below) are {attr}.  If the
+			command already exists, an error is reported, unless a
+			! is specified, in which case the command is
+			redefined.  There is one exception: When sourcing a
+			script again, a command that was previously defined in
+			that script will be silently replaced.
 
 
 :delc[ommand] {cmd}				*:delc* *:delcommand* *E184*
@@ -1415,11 +1415,11 @@ feature.  Use the full name for new scripts.
 
 Replacement text ~
 
-The replacement text for a user defined command is scanned for special escape
-sequences, using <...> notation.  Escape sequences are replaced with values
-from the entered command line, and all other text is copied unchanged.  The
-resulting string is executed as an Ex command.  To avoid the replacement use
-<lt> in place of the initial <.  Thus to include "<bang>" literally use
+The replacement text {repl} for a user defined command is scanned for special
+escape sequences, using <...> notation.  Escape sequences are replaced with
+values from the entered command line, and all other text is copied unchanged.
+The resulting string is executed as an Ex command.  To avoid the replacement
+use <lt> in place of the initial <.  Thus to include "<bang>" literally use
 "<lt>bang>".
 
 The valid escape sequences are
diff --git a/runtime/doc/pattern.txt b/runtime/doc/pattern.txt
index 406068982e..3c7a20dd49 100644
--- a/runtime/doc/pattern.txt
+++ b/runtime/doc/pattern.txt
@@ -351,8 +351,8 @@ For starters, read chapter 27 of the user manual |usr_27.txt|.
 						*/atom*
 5. An atom can be one of a long list of items.  Many atoms match one character
    in the text.  It is often an ordinary character or a character class.
-   Braces can be used to make a pattern into an atom.  The "\z(\)" construct
-   is only for syntax highlighting.
+   Parentheses can be used to make a pattern into an atom.  The "\z(\)"
+   construct is only for syntax highlighting.
 
    atom    ::=	    ordinary-atom		|/ordinary-atom|
 		or  \( pattern \)		|/\(|
@@ -666,7 +666,7 @@ overview.
 
 	Note that using "\&" works the same as using "\@=": "foo\&.." is the
 	same as "\(foo\)\@=..".  But using "\&" is easier, you don't need the
-	braces.
+	parentheses.
 
 
 							*/\@!*
@@ -1058,8 +1058,8 @@ x	A single character, with no special meaning, matches itself
 
 []	(with 'nomagic': \[])		*/[]* */\[]* */\_[]* */collection*
 \_[]
-	A collection.  This is a sequence of characters enclosed in brackets.
-	It matches any single character in the collection.
+	A collection.  This is a sequence of characters enclosed in square
+	brackets.  It matches any single character in the collection.
 	Example		matches ~
 	[xyz]		any 'x', 'y' or 'z'
 	[a-zA-Z]$	any alphabetic character at the end of a line
@@ -1118,11 +1118,12 @@ x	A single character, with no special meaning, matches itself
 *[:ident:]*	  [:ident:]		identifier character (same as "\i")
 *[:keyword:]*	  [:keyword:]		keyword character (same as "\k")
 *[:fname:]*	  [:fname:]		file name character (same as "\f")
-	  The brackets in character class expressions are additional to the
-	  brackets delimiting a collection.  For example, the following is a
-	  plausible pattern for a Unix filename: "[-./[:alnum:]_~]\+" That is,
-	  a list of at least one character, each of which is either '-', '.',
-	  '/', alphabetic, numeric, '_' or '~'.
+	  The square brackets in character class expressions are additional to
+	  the square brackets delimiting a collection.  For example, the
+	  following is a plausible pattern for a UNIX filename:
+	  "[-./[:alnum:]_~]\+".  That is, a list of at least one character,
+	  each of which is either '-', '.', '/', alphabetic, numeric, '_' or
+	  '~'.
 	  These items only work for 8-bit characters, except [:lower:] and
 	  [:upper:] also work for multibyte characters when using the new
 	  regexp engine.  See |two-engines|.  In the future these items may
diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index 920c7aa018..59a1d1a185 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -925,7 +925,7 @@ SELECTEMPTY, ... The indentation preceding the begin/end keywords has to
 match (spaces are not considered equal to a tab). >
 	let baan_fold_sql=1
 Note: Block folding can result in many small folds. It is suggested to |:set|
-the options 'foldminlines' and 'foldnestmax' in |init.vim| or use |:setlocal| 
+the options 'foldminlines' and 'foldnestmax' in |init.vim| or use |:setlocal|
 in .../after/syntax/baan.vim (see |after-directory|). Eg: >
 	set foldminlines=5
 	set foldnestmax=6
@@ -3151,6 +3151,7 @@ redrawing can become slow.
 
 
 TEX				*tex.vim* *ft-tex-syntax* *latex-syntax*
+				*syntax-tex* *syntax-latex*
 
 			Tex Contents~
 	Tex: Want Syntax Folding?			|tex-folding|
@@ -3167,6 +3168,7 @@ TEX				*tex.vim* *ft-tex-syntax* *latex-syntax*
 	Tex: Selective Conceal Mode			|g:tex_conceal|
 	Tex: Controlling iskeyword			|g:tex_isk|
 	Tex: Fine Subscript and Superscript Control	|tex-supersub|
+	Tex: Match Check Control			|tex-matchcheck|
 
 				*tex-folding* *g:tex_fold_enabled*
  Tex: Want Syntax Folding? ~
@@ -3387,9 +3389,25 @@ syntax highlighting script handles this with the following logic:
 	For example, I use Luxi Mono Bold; it doesn't support subscript
 	characters for "hklmnpst", so I put >
 		let g:tex_subscripts= "[0-9aeijoruvx,+-/().]"
-<	in ~/.config/nvim/ftplugin/tex/tex.vim in order to avoid having 
+<	in ~/.config/nvim/ftplugin/tex/tex.vim in order to avoid having
 	inscrutable utf-8 glyphs appear.
 
+					*tex-matchcheck* *g:tex_matchcheck*
+ Tex: Match Check Control~
+
+	Sometimes one actually wants mismatched parentheses, square braces,
+	and or curly braces; for example, \text{(1,10] is a range from but
+	not including 1 to and including 10}.  This wish, of course, conflicts
+	with the desire to provide delimiter mismatch detection.  To
+	accommodate these conflicting goals, syntax/tex.vim provides >
+		g:tex_matchcheck = '[({[]'
+<	which is shown along with its default setting.  So, if one doesn't
+	want [] and () to be checked for mismatches, try using >
+		let g:tex_matchcheck= '[{}]'
+<	If you don't want matching to occur inside bold and italicized
+	regions, >
+		let g:tex_excludematcher= 1
+<	will prevent the texMatcher group from being included in those regions.
 
 TF						*tf.vim* *ft-tf-syntax*
 
@@ -5073,9 +5091,9 @@ MsgSeparator	Separator for scrolled messages, `msgsep` flag of 'display'
 							*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 
+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). See also |hl-EndOfBuffer|.
 							*hl-Normal*
 Normal		normal text
@@ -5268,7 +5286,7 @@ script file to set these colors.  Put this file in a directory in
 the default colors.  This way these colors will be used after the ":syntax
 reset" command.
 
-For Unix you can use the file ~/.config/nvim/after/syntax/syncolor.vim.  
+For Unix you can use the file ~/.config/nvim/after/syntax/syncolor.vim.
 Example: >
 
 	if &background == "light"
diff --git a/runtime/doc/undo.txt b/runtime/doc/undo.txt
index 160b6cecfd..b11d7581ed 100644
--- a/runtime/doc/undo.txt
+++ b/runtime/doc/undo.txt
@@ -60,9 +60,9 @@ with the redo command.  If you make a new change after the undo command,
 the redo will not be possible anymore.
 
 'u' included, the Vi-compatible way:
-The undo command undoes the previous change, and also the previous undo command.
-The redo command repeats the previous undo command.  It does NOT repeat a
-change command, use "." for that.
+The undo command undoes the previous change, and also the previous undo
+command.  The redo command repeats the previous undo command.  It does NOT
+repeat a change command, use "." for that.
 
 Examples	Vim way			Vi-compatible way	~
 "uu"		two times undo		no-op
@@ -98,7 +98,7 @@ change again.  But you can do something like this: >
 
 	:undojoin | delete
 
-After this an "u" command will undo the delete command and the previous
+After this a "u" command will undo the delete command and the previous
 change.
 
 To do the opposite, break a change into two undo blocks, in Insert mode use
diff --git a/runtime/pack/dist/opt/termdebug/plugin/termdebug.vim b/runtime/pack/dist/opt/termdebug/plugin/termdebug.vim
index e34f1cdc75..91abe80fb5 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: 2020 Oct 28
+" Last Change: 2020 Dec 07
 "
 " WORK IN PROGRESS - Only the basics work
 " Note: On MS-Windows you need a recent version of gdb.  The one included with
@@ -815,8 +815,12 @@ func s:DeleteCommands()
   delcommand Asm
   delcommand Winbar
 
-  if exists('s:k_map_saved') && !empty(s:k_map_saved)
-    call mapset('n', 0, s:k_map_saved)
+  if exists('s:k_map_saved')
+    if empty(s:k_map_saved)
+      nunmap K
+    else
+      call mapset('n', 0, s:k_map_saved)
+    endif
     unlet s:k_map_saved
   endif
 
diff --git a/runtime/syntax/aidl.vim b/runtime/syntax/aidl.vim
index 1947ab97d8..3a79433aa9 100644
--- a/runtime/syntax/aidl.vim
+++ b/runtime/syntax/aidl.vim
@@ -2,7 +2,7 @@
 " Language:	aidl (Android Interface Definition Language)
 "		https://developer.android.com/guide/components/aidl
 " Maintainer:	Dominique Pelle <dominique.pelle@tomtom.com>
-" LastChange:	2020/07/25
+" LastChange:	2020/12/03
 
 " Quit when a syntax file was already loaded.
 if exists("b:current_syntax")
@@ -12,7 +12,7 @@ endif
 source <sfile>:p:h/java.vim
 
 syn keyword aidlParamDir in out inout
-syn keyword aidlKeyword oneway parcelable
+syn keyword aidlKeyword const oneway parcelable
 
 " Needed for the 'in', 'out', 'inout' keywords to be highlighted.
 syn cluster javaTop add=aidlParamDir
diff --git a/runtime/syntax/diff.vim b/runtime/syntax/diff.vim
index b656cd97a6..ac43d6650a 100644
--- a/runtime/syntax/diff.vim
+++ b/runtime/syntax/diff.vim
@@ -2,7 +2,7 @@
 " Language:	Diff (context or unified)
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
 "               Translations by Jakson Alves de Aquino.
-" Last Change:	2016 Apr 02
+" Last Change:	2020 Dec 07
 
 " Quit when a (custom) syntax file was already loaded
 if exists("b:current_syntax")
@@ -346,9 +346,11 @@ syn match diffLine	"^---$"
 syn match diffLine	"^\d\+\(,\d\+\)\=[cda]\d\+\>.*"
 
 syn match diffFile	"^diff\>.*"
-syn match diffFile	"^+++ .*"
 syn match diffFile	"^Index: .*"
 syn match diffFile	"^==== .*"
+" Old style diff uses *** for old and --- for new.
+" Unified diff uses --- for old and +++ for new; names are wrong but it works.
+syn match diffOldFile	"^+++ .*"
 syn match diffOldFile	"^\*\*\* .*"
 syn match diffNewFile	"^--- .*"