Update runtime files.

33 files changed, 735 insertions, 247 deletions

diff --git a/runtime/compiler/dart.vim b/runtime/compiler/dart.vim
new file mode 100644
index 0000000000..f9ebfe1b27
--- /dev/null
+++ b/runtime/compiler/dart.vim
@@ -0,0 +1,26 @@
+" Vim compiler file
+" Compiler:	Dart VM
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2019 May 08
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "dart"
+
+if exists(":CompilerSet") != 2		" older Vim always used :setlocal
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+CompilerSet makeprg=dart
+CompilerSet errorformat=%E%f:%l:%c:\ Error:\ %m,
+		       \%CTry\ %.%#,
+		       \%Z\ %#^%\\+,
+		       \%C%.%#,
+		       \%-G%.%#
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
diff --git a/runtime/compiler/dart2js.vim b/runtime/compiler/dart2js.vim
new file mode 100644
index 0000000000..b6a4e4d530
--- /dev/null
+++ b/runtime/compiler/dart2js.vim
@@ -0,0 +1,28 @@
+" Vim compiler file
+" Compiler:	Dart to JavaScript Compiler
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2019 May 08
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "dart2js"
+
+if exists(":CompilerSet") != 2		" older Vim always used :setlocal
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+CompilerSet makeprg=dart2js
+CompilerSet errorformat=%E%f:%l:%c:,
+		       \%-GError:\ Compilation\ failed.,
+		       \%CError:\ %m,
+		       \%Z\ %#^%\\+,
+		       \%C%.%#,
+		       \%trror:\ %m,
+		       \%-G%.%#
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
diff --git a/runtime/compiler/dart2native.vim b/runtime/compiler/dart2native.vim
new file mode 100644
index 0000000000..51bdab0cc3
--- /dev/null
+++ b/runtime/compiler/dart2native.vim
@@ -0,0 +1,28 @@
+" Vim compiler file
+" Compiler:	Dart to Native Compiler
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2019 May 08
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "dart2native"
+
+if exists(":CompilerSet") != 2		" older Vim always used :setlocal
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+CompilerSet makeprg=dart2native
+CompilerSet errorformat=%E%f:%l:%c:\ Error:\ %m,
+		       \%CTry\ %.%#,
+		       \%Z\ %#^%\\+,
+		       \%Z%$,
+		       \%C%.%#,
+		       \%E%f:\ %trror:\ %m,
+		       \%-G%.%#
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
diff --git a/runtime/compiler/dartanalyser.vim b/runtime/compiler/dartanalyser.vim
new file mode 100644
index 0000000000..e691d80b61
--- /dev/null
+++ b/runtime/compiler/dartanalyser.vim
@@ -0,0 +1,23 @@
+" Vim compiler file
+" Compiler:	Dart Analyzer
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2019 May 08
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "dartanalyzer"
+
+if exists(":CompilerSet") != 2		" older Vim always used :setlocal
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+CompilerSet makeprg=dartanalyzer\ --format\ machine
+CompilerSet errorformat=%t%\\w%\\+\|%\\w%\\+\|%\\w%\\+\|%f\|%l\|%c\|%\\d%\\+\|%m,
+		       \%-G%.%#
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
diff --git a/runtime/compiler/dartdevc.vim b/runtime/compiler/dartdevc.vim
new file mode 100644
index 0000000000..e8d1988ed6
--- /dev/null
+++ b/runtime/compiler/dartdevc.vim
@@ -0,0 +1,28 @@
+" Vim compiler file
+" Compiler:	Dart Development Compiler
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2019 May 08
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "dartdevc"
+
+if exists(":CompilerSet") != 2		" older Vim always used :setlocal
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+CompilerSet makeprg=dartdevc
+CompilerSet errorformat=%E%f:%l:%c:\ Error:\ %m,
+		       \%CTry\ %.%#,
+		       \%Z\ %#^%\\+,
+		       \%Z%$,
+		       \%C%.%#,
+		       \%E%f:\ %trror:\ %m,
+		       \%-G%.%#
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
diff --git a/runtime/compiler/dartdoc.vim b/runtime/compiler/dartdoc.vim
new file mode 100644
index 0000000000..26b38d8dd4
--- /dev/null
+++ b/runtime/compiler/dartdoc.vim
@@ -0,0 +1,26 @@
+" Vim compiler file
+" Compiler:	Dart Documentation Generator
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2019 May 08
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "dartdoc"
+
+if exists(":CompilerSet") != 2		" older Vim always used :setlocal
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+CompilerSet makeprg=dartdoc
+CompilerSet errorformat=\ \ %tarning:\ %m,
+		       \\ \ %trror:\ %m,
+		       \%+EGeneration\ failed:\ %m,
+		       \%+ISuccess!\ Docs\ generated\ into\ %f,
+		       \%-G%.%#
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
diff --git a/runtime/compiler/dartfmt.vim b/runtime/compiler/dartfmt.vim
new file mode 100644
index 0000000000..2e4ab02ad3
--- /dev/null
+++ b/runtime/compiler/dartfmt.vim
@@ -0,0 +1,25 @@
+" Vim compiler file
+" Compiler:	Dart Formatter
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2019 May 08
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "dartfmt"
+
+if exists(":CompilerSet") != 2		" older Vim always used :setlocal
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+CompilerSet makeprg=dartfmt
+CompilerSet errorformat=%Eline\ %l\\,\ column\ %c\ of\ %f:\ %m,
+		       \%Z\ %\\{3}│\ %\\+^%\\+,
+		       \%C%.%#,
+		       \%-G%.%#
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
diff --git a/runtime/compiler/javac.vim b/runtime/compiler/javac.vim
index a50bdca8f2..8507efd67c 100644
--- a/runtime/compiler/javac.vim
+++ b/runtime/compiler/javac.vim
@@ -1,7 +1,7 @@
 " Vim compiler file
-" Compiler:	javac
+" Compiler:	Java Development Kit Compiler
 " Maintainer:	Doug Kearns <dougkearns@gmail.com>
-" Last Change:	2004 Nov 27
+" Last Change:	2019 Oct 21
 
 if exists("current_compiler")
   finish
@@ -12,6 +12,15 @@ if exists(":CompilerSet") != 2		" older Vim always used :setlocal
   command -nargs=* CompilerSet setlocal <args>
 endif
 
+let s:cpo_save = &cpo
+set cpo&vim
+
 CompilerSet makeprg=javac
+CompilerSet errorformat=%E%f:%l:\ error:\ %m,
+		       \%W%f:%l:\ warning:\ %m,
+		       \%-Z%p^,
+		       \%-C%.%#,
+		       \%-G%.%#
 
-CompilerSet errorformat=%E%f:%l:\ %m,%-Z%p^,%-C%.%#,%-G%.%#
+let &cpo = s:cpo_save
+unlet s:cpo_save
diff --git a/runtime/compiler/rhino.vim b/runtime/compiler/rhino.vim
new file mode 100644
index 0000000000..30f3dd3252
--- /dev/null
+++ b/runtime/compiler/rhino.vim
@@ -0,0 +1,30 @@
+" Vim compiler file
+" Compiler:	Rhino Shell (JavaScript in Java)
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2019 Jul 10
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "rhino"
+
+if exists(":CompilerSet") != 2		" older Vim always used :setlocal
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+" CompilerSet makeprg=java\ -jar\ lib/rhino-X.X.XX.jar\ -w\ -strict
+
+CompilerSet makeprg=rhino
+CompilerSet errorformat=%-Gjs:\ %.%#Compilation\ produced%.%#,
+		       \%Ejs:\ \"%f\"\\,\ line\ %l:\ %m,
+		       \%Ejs:\ uncaught\ JavaScript\ runtime\ exception:\ %m,
+		       \%Wjs:\ warning:\ \"%f\"\\,\ line\ %l:\ %m,
+		       \%Zjs:\ %p^,
+		       \%Cjs:\ %.%#,
+		       \%-G%.%#
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
diff --git a/runtime/compiler/xmllint.vim b/runtime/compiler/xmllint.vim
index 96cfa55383..79d38b4d14 100644
--- a/runtime/compiler/xmllint.vim
+++ b/runtime/compiler/xmllint.vim
@@ -1,7 +1,7 @@
 " Vim compiler file
-" Compiler:	xmllint
+" Compiler:	Libxml2 Command-Line Tool
 " Maintainer:	Doug Kearns <dougkearns@gmail.com>
-" Last Change:	2013 Jul 8
+" Last Change:	2020 Jul 30
 
 if exists("current_compiler")
   finish
@@ -13,14 +13,16 @@ if exists(":CompilerSet") != 2		" older Vim always used :setlocal
 endif
 
 let s:cpo_save = &cpo
-set cpo-=C
+set cpo&vim
 
 CompilerSet makeprg=xmllint\ --valid\ --noout
-
-CompilerSet errorformat=%+E%f:%l:\ %.%#\ error\ :\ %m,
-		    \%+W%f:%l:\ %.%#\ warning\ :\ %m,
-		    \%-Z%p^,
-		    \%-G%.%#
+CompilerSet errorformat=%E%f:%l:\ %.%#\ error\ :\ %m,
+		       \%W%f:%l:\ %.%#\ warning\ :\ %m,
+		       \%-Z%p^,
+		       \%C%.%#,
+		       \%terror:\ %m,
+		       \%tarning:\ %m,
+		       \%-G%.%#
 
 let &cpo = s:cpo_save
 unlet s:cpo_save
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 130e6423b9..e72a388302 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1,4 +1,4 @@
-*eval.txt*	For Vim version 8.2.  Last change: 2020 aug 30
+*eval.txt*	For Vim version 8.2.  Last change: 2020 Sep 06
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -120,8 +120,9 @@ base, use |str2nr()|.
 
 						*TRUE* *FALSE* *Boolean*
 For boolean operators Numbers are used.  Zero is FALSE, non-zero is TRUE.
-You can also use |v:false| and |v:true|.  When TRUE is returned from a
-function it is the Number one, FALSE is the number zero.
+You can also use |v:false| and |v:true|.  In Vim9 script |false| and |true|. 
+When TRUE is returned from a function it is the Number one, FALSE is the
+number zero.
 
 Note that in the command: >
 	:if "foo"
@@ -2360,7 +2361,7 @@ assert_equalfile({fname-one}, {fname-two} [, {msg}])
 				Number	assert file contents are equal
 assert_exception({error} [, {msg}])
 				Number	assert {error} is in v:exception
-assert_fails({cmd} [, {error} [, {msg} [, {lnum}]]])
+assert_fails({cmd} [, {error} [, {msg} [, {lnum} [, {context}]]]])
 				Number	assert {cmd} fails
 assert_false({actual} [, {msg}])
 				Number	assert {actual} is false
@@ -3362,7 +3363,7 @@ bufnr([{expr} [, {create}]])
 		above.
 
 		If the buffer doesn't exist, -1 is returned.  Or, if the
-		{create} argument is present and not zero, a new, unlisted,
+		{create} argument is present and TRUE, a new, unlisted,
 		buffer is created and its number is returned.  Example: >
 			let newbuf = bufnr('Scratch001', 1)
 <		Using an empty name uses the current buffer. To create a new
@@ -3513,7 +3514,7 @@ char2nr({expr} [, {utf8}])					*char2nr()*
 		Example for "utf-8": >
 			char2nr("á")		returns 225
 			char2nr("á"[0])		returns 195
-<		With {utf8} set to 1, always treat as utf-8 characters.
+<		With {utf8} set to TRUE, always treat as utf-8 characters.
 		A combining character is a separate character.
 		|nr2char()| does the opposite.
 		To turn a string into a list of character numbers: >
@@ -7608,7 +7609,7 @@ perleval({expr})					*perleval()*
 <		{only available when compiled with the |+perl| feature}
 
 
-popup_ functions are documented here: |popup-functions|.
+popup_ functions are documented here: |popup-functions|
 
 
 pow({x}, {y})						*pow()*
@@ -11040,7 +11041,8 @@ win_screenpos({nr})					*win_screenpos()*
 		Return the screen position of window {nr} as a list with two
 		numbers: [row, col].  The first window always has position
 		[1, 1], unless there is a tabline, then it is [2, 1].
-		{nr} can be the window number or the |window-ID|.
+		{nr} can be the window number or the |window-ID|.  Use zero
+		for the current window.
 		Return [0, 0] if the window cannot be found in the current
 		tabpage.
 
diff --git a/runtime/doc/map.txt b/runtime/doc/map.txt
index 83fdbbb825..8900026a1f 100644
--- a/runtime/doc/map.txt
+++ b/runtime/doc/map.txt
@@ -1,4 +1,4 @@
-*map.txt*       For Vim version 8.2.  Last change: 2020 Aug 30
+*map.txt*       For Vim version 8.2.  Last change: 2020 Sep 06
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -195,7 +195,7 @@ Note that this works when the <nowait> mapping fully matches and is found
 before any partial matches.  This works when:
 - There is only one matching buffer-local mapping, since these are always
   found before global mappings.
-- There is another buffer-local mapping that partly matches, but it is was
+- There is another buffer-local mapping that partly matches, but it is
   defined earlier (last defined mapping is found first).
 
 						*:map-<silent>* *:map-silent*
@@ -289,15 +289,8 @@ Here is an example that inserts a list number that increases: >
 CTRL-L inserts the next number, CTRL-R resets the count.  CTRL-R returns an
 empty string, so that nothing is inserted.
 
-Note that there are some tricks to make special keys work and escape CSI bytes
-in the text.  The |:map| command also does this, thus you must avoid that it
-is done twice.  This does not work: >
-	:imap <expr> <F3> "<Char-0x611B>"
-Because the <Char- sequence is escaped for being a |:imap| argument and then
-again for using <expr>.  This does work: >
-	:imap <expr> <F3> "\u611B"
-Using 0x80 as a single byte before other text does not work, it will be seen
-as a special key.
+Note that using 0x80 as a single byte before other text does not work, it will
+be seen as a special key.
 
 
 1.3 MAPPING AND MODES					*:map-modes*
@@ -881,35 +874,47 @@ g@{motion}		Call the function set by the 'operatorfunc' option.
 
 Here is an example that counts the number of spaces with <F4>: >
 
-	nmap <silent> <F4> :set opfunc=CountSpaces<CR>g@
-	vmap <silent> <F4> :<C-U>call CountSpaces(visualmode(), 1)<CR>
+	nnoremap <expr> <F4> CountSpaces()
+	xnoremap <expr> <F4> CountSpaces()
+	" doubling <F4> works on a line
+	nnoremap <expr> <F4><F4> CountSpaces() .. '_'
 
-	function! CountSpaces(type, ...)
-	  let sel_save = &selection
-	  let &selection = "inclusive"
-	  let reg_save = @@
-
-	  if a:0  " Invoked from Visual mode, use gv command.
-	    silent exe "normal! gvy"
-	  elseif a:type == 'line'
-	    silent exe "normal! '[V']y"
-	  else
-	    silent exe "normal! `[v`]y"
-	  endif
-
-	  echomsg strlen(substitute(@@, '[^ ]', '', 'g'))
+	function CountSpaces(type = '') abort
+	  if a:type == ''
+	    set opfunc=CountSpaces
+	    return 'g@'
+ 	  endif
 
-	  let &selection = sel_save
-	  let @@ = reg_save
+	  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(' ')
+	  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
+	  endtry
 	endfunction
 
+An <expr> mapping is used to be able to fetch any prefixed count and register.
+This also avoids using a command line, which would trigger CmdlineEnter and
+CmdlineLeave autocommands.
+
 Note that the 'selection' option is temporarily set to "inclusive" to be able
 to yank exactly the right text by using Visual mode from the '[ to the ']
 mark.
 
-Also note that there is a separate mapping for Visual mode.  It removes the
-"'<,'>" range that ":" inserts in Visual mode and invokes the function with
-visualmode() and an extra argument.
+Also note that the 'clipboard' option is temporarily emptied to avoid
+clobbering the `"*` or `"+` registers, if its value contains the item `unnamed`
+or `unnamedplus`.
 
 ==============================================================================
 2. Abbreviations			*abbreviations* *Abbreviations*
diff --git a/runtime/doc/message.txt b/runtime/doc/message.txt
index 5024b3e1e2..9ce649db45 100644
--- a/runtime/doc/message.txt
+++ b/runtime/doc/message.txt
@@ -1,4 +1,4 @@
-*message.txt*   For Vim version 8.2.  Last change: 2020 Aug 20
+*message.txt*   For Vim version 8.2.  Last change: 2020 Sep 07
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -75,7 +75,7 @@ See `:messages` above.
 
 
 LIST OF MESSAGES
-			*E222* *E228* *E232* *E256* *E293* *E298* *E304* *E317*
+			*E222* *E228* *E232* *E293* *E298* *E304* *E317*
 			*E318* *E356* *E438* *E439* *E440* *E316* *E320* *E322*
 			*E323* *E341* *E473* *E570* *E685* *E292*  >
   Add to read buffer
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index b5ceb38db5..85a0296e0b 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 8.2.  Last change: 2020 Aug 28
+*options.txt*	For Vim version 8.2.  Last change: 2020 Sep 06
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -701,6 +701,7 @@ A jump table for the options with a short description can be found at |Q_op|.
 	"double":	Use twice the width of ASCII characters.
 							*E834* *E835*
 	The value "double" cannot be used if 'listchars' or 'fillchars'
+	contains a character that would be double width.
 
 	The values are overruled for characters specified with
 	|setcellwidths()|.
@@ -6563,7 +6564,7 @@ A jump table for the options with a short description can be found at |Q_op|.
 	For the Amiga the default is ">".  For MS-Windows the default is
 	">%s 2>&1".  The output is directly saved in a file and not echoed to
 	the screen.
-	For Unix the default it "| tee".  The stdout of the compiler is saved
+	For Unix the default is "| tee".  The stdout of the compiler is saved
 	in a file and echoed to the screen.  If the 'shell' option is "csh" or
 	"tcsh" after initializations, the default becomes "|& tee".  If the
 	'shell' option is "sh", "ksh", "mksh", "pdksh", "zsh", "zsh-beta",
@@ -7807,8 +7808,8 @@ A jump table for the options with a short description can be found at |Q_op|.
 						*'termwinsize'* *'tws'*
 'termwinsize' 'tws'	string	(default "")
 			local to window
-	Size of the |terminal| window.  Format: {rows}x{columns} or
-	{rows}*{columns}.
+	Size used when opening the |terminal| window.  Format:
+		{rows}x{columns} or {rows}*{columns}.
 	- When empty the terminal gets the size from the window.
 	- When set with a "x" (e.g., "24x80") the terminal size is not
 	  adjusted to the window size.  If the window is smaller only the
@@ -7819,6 +7820,8 @@ A jump table for the options with a short description can be found at |Q_op|.
 	- When rows is zero then use the height of the window.
 	- When columns is zero then use the width of the window.
 	- Using "0x0" or "0*0" is the same as empty.
+	- Can be overruled in the |term_start()| options with "term_rows" and
+	  "term_cols".
 
 	Examples:
 	  "30x0" uses 30 rows and the current window width.
diff --git a/runtime/doc/pattern.txt b/runtime/doc/pattern.txt
index f9a34d4a2d..19edb7268b 100644
--- a/runtime/doc/pattern.txt
+++ b/runtime/doc/pattern.txt
@@ -1,4 +1,4 @@
-*pattern.txt*   For Vim version 8.2.  Last change: 2020 Aug 15
+*pattern.txt*   For Vim version 8.2.  Last change: 2020 Sep 01
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -797,11 +797,12 @@ An ordinary atom can be:
 	^beep(		the start of the C function "beep" (probably).
 
 							*/\^*
-\^	Matches literal '^'.  Can be used at any position in the pattern.
+\^	Matches literal '^'.  Can be used at any position in the pattern, but
+	not inside [].
 
 							*/\_^*
 \_^	Matches start-of-line. |/zero-width|  Can be used at any position in
-	the pattern.
+	the pattern, but not inside [].
 	Example		matches ~
 	\_s*\_^foo	white space and blank lines and then "foo" at
 			start-of-line
@@ -812,12 +813,13 @@ $	At end of pattern or in front of "\|", "\)" or "\n" ('magic' on):
 	|/zero-width|
 
 							*/\$*
-\$	Matches literal '$'.  Can be used at any position in the pattern.
+\$	Matches literal '$'.  Can be used at any position in the pattern, but
+	not inside [].
 
 							*/\_$*
 \_$	Matches end-of-line. |/zero-width|  Can be used at any position in the
-	pattern.  Note that "a\_$b" never matches, since "b" cannot match an
-	end-of-line.  Use "a\nb" instead |/\n|.
+	pattern, but not inside [].  Note that "a\_$b" never matches, since
+	"b" cannot match an end-of-line.  Use "a\nb" instead |/\n|.
 	Example		matches ~
 	foo\_$\_s*	"foo" at end-of-line and following white space and
 			blank lines
@@ -840,8 +842,9 @@ $	At end of pattern or in front of "\|", "\)" or "\n" ('magic' on):
 	|/zero-width|
 
 							*/\zs*
-\zs	Matches at any position, and sets the start of the match there: The
-	next char is the first char of the whole match. |/zero-width|
+\zs	Matches at any position, but not inside [], and sets the start of the
+	match there: The next char is the first char of the whole match.
+	|/zero-width|
 	Example: >
 		/^\s*\zsif
 <	matches an "if" at the start of a line, ignoring white space.
@@ -852,8 +855,9 @@ $	At end of pattern or in front of "\|", "\)" or "\n" ('magic' on):
 	This cannot be followed by a multi. *E888*
 	{not available when compiled without the |+syntax| feature}
 							*/\ze*
-\ze	Matches at any position, and sets the end of the match there: The
-	previous char is the last char of the whole match. |/zero-width|
+\ze	Matches at any position, but not inside [], and sets the end of the
+	match there: The previous char is the last char of the whole match.
+	|/zero-width|
 	Can be used multiple times, the last one encountered in a matching
 	branch is used.
 	Example: "end\ze\(if\|for\)" matches the "end" in "endif" and
diff --git a/runtime/doc/tags b/runtime/doc/tags
index 6a93907968..d3202727a0 100644
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -4071,7 +4071,6 @@ E252	options.txt	/*E252*
 E253	mbyte.txt	/*E253*
 E254	message.txt	/*E254*
 E255	sign.txt	/*E255*
-E256	message.txt	/*E256*
 E257	if_cscop.txt	/*E257*
 E258	remote.txt	/*E258*
 E259	if_cscop.txt	/*E259*
@@ -6323,6 +6322,7 @@ extend()	eval.txt	/*extend()*
 extension-removal	cmdline.txt	/*extension-removal*
 extensions-improvements	todo.txt	/*extensions-improvements*
 f	motion.txt	/*f*
+false	vim9.txt	/*false*
 false-variable	eval.txt	/*false-variable*
 faq	intro.txt	/*faq*
 farsi	farsi.txt	/*farsi*
@@ -8485,6 +8485,7 @@ progname-variable	eval.txt	/*progname-variable*
 progpath-variable	eval.txt	/*progpath-variable*
 progress.vim	syntax.txt	/*progress.vim*
 prompt-buffer	channel.txt	/*prompt-buffer*
+prompt_getprompt()	eval.txt	/*prompt_getprompt()*
 prompt_setcallback()	eval.txt	/*prompt_setcallback()*
 prompt_setinterrupt()	eval.txt	/*prompt_setinterrupt()*
 prompt_setprompt()	eval.txt	/*prompt_setprompt()*
@@ -9644,6 +9645,7 @@ toupper()	eval.txt	/*toupper()*
 tr()	eval.txt	/*tr()*
 trim()	eval.txt	/*trim()*
 trojan-horse	starting.txt	/*trojan-horse*
+true	vim9.txt	/*true*
 true-variable	eval.txt	/*true-variable*
 trunc()	eval.txt	/*trunc()*
 try-conditionals	eval.txt	/*try-conditionals*
diff --git a/runtime/doc/terminal.txt b/runtime/doc/terminal.txt
index ff52078548..af6151c940 100644
--- a/runtime/doc/terminal.txt
+++ b/runtime/doc/terminal.txt
@@ -1,4 +1,4 @@
-*terminal.txt*	For Vim version 8.2.  Last change: 2020 Jun 06
+*terminal.txt*	For Vim version 8.2.  Last change: 2020 Sep 04
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -476,9 +476,11 @@ term_dumpdiff({filename}, {filename} [, {options}])
 		   "term_name"	     name to use for the buffer name, instead
 				     of the first file name.
 		   "term_rows"	     vertical size to use for the terminal,
-				     instead of using 'termwinsize'
+				     instead of using 'termwinsize', but
+				     respecting the minimal size
 		   "term_cols"	     horizontal size to use for the terminal,
-				     instead of using 'termwinsize'
+				     instead of using 'termwinsize', but
+				     respecting the minimal size
 		   "vertical"	     split the window vertically
 		   "curwin"	     use the current window, do not split the
 				     window; fails if the current buffer
diff --git a/runtime/doc/testing.txt b/runtime/doc/testing.txt
index 23d3e36378..96446853c7 100644
--- a/runtime/doc/testing.txt
+++ b/runtime/doc/testing.txt
@@ -1,4 +1,4 @@
-*testing.txt*	For Vim version 8.2.  Last change: 2020 Aug 17
+*testing.txt*	For Vim version 8.2.  Last change: 2020 Sep 06
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index f9288faef2..bd05ecf624 100644
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -1,4 +1,4 @@
-*todo.txt*      For Vim version 8.2.  Last change: 2020 Aug 29
+*todo.txt*      For Vim version 8.2.  Last change: 2020 Sep 07
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -41,15 +41,45 @@ browser use: https://github.com/vim/vim/issues/1234
 Why does Test_invalid_sid() not work in the GUI?
 
 Making everything work:
-- Check :const works the same as in legacy script.
+- Should :const work the same as in legacy script?
+  Or should it work like in Typescript: only the variable is fixed, not the
+  value itself.
+  Then use ":const!" to also fix/lock the value?
+  Typescript uses "as const", which is weird.
+  Alternative:  const var = <const>value
+      looks quite strange quite verbose
+      But can be used in several places:
+	    SomeFunc(<const>[1, 2, 3])
+      In Vim this basically means "lock this value".
+      How about:
+	    SomeFunc(<const>[[1], [2], [3]])  # are sub-lists immutable?
+	    SomeFunc(<const>myList)  # is myList mutable afterwards?
+
 - Run the same tests in :def and Vim9 script, like in Test_expr7_not()
 - :put with a "=" register argument doesn't work, need to find the expression
   and compile it. (#6397)
 - At the Vim9 script level, keep script variables local to the block they are
-  declared in?  Need to remember what variables were declared and delete them
-  when leaving the block.
-- Implement { } block at the script level.
-- Use the line number argument with assert_fails() in many more tests.
+  declared in, like in Javascript (using :let).
+  -> Need to remember what variables were declared and delete them when
+     leaving the block.
+  -> if a function is defined it may need to keep the block-locals
+  Then Implement { } block at the script level.
+- Recognize call to assert_fails() and execute it in the function context?
+  Won't work if the command itself fails, not an expression failure:
+	assert_fails("unknown", "E99:")
+  Use try/catch is complicated:
+    let did_catch = false
+    try
+	unknown
+    catch
+	assert_caught('E99:')
+	did_catch = true
+    endtry
+    assert_true('did_catch')
+  Add a new command,