Update runtime files

24 files changed, 187 insertions, 88 deletions

diff --git a/runtime/autoload/ccomplete.vim b/runtime/autoload/ccomplete.vim
index 156b3af02..971e7367c 100644
--- a/runtime/autoload/ccomplete.vim
+++ b/runtime/autoload/ccomplete.vim
@@ -1,7 +1,7 @@
 " Vim completion script
 " Language:	C
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2018 Aug 20
+" Last Change:	2020 Apr 08
 
 let s:cpo_save = &cpo
 set cpo&vim
@@ -635,3 +635,5 @@ endfunc
 
 let &cpo = s:cpo_save
 unlet s:cpo_save
+
+" vim: noet sw=2 sts=2
diff --git a/runtime/autoload/dist/ft.vim b/runtime/autoload/dist/ft.vim
index 5c43ba280..844a5ad73 100644
--- a/runtime/autoload/dist/ft.vim
+++ b/runtime/autoload/dist/ft.vim
@@ -1,7 +1,7 @@
 " Vim functions for file type detection
 "
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2020 Jan 02
+" Last Change:	2020 Mar 30
 
 " These functions are moved here from runtime/filetype.vim to make startup
 " faster.
@@ -325,7 +325,7 @@ endfunc
 
 func dist#ft#FTmm()
   let n = 1
-  while n < 10
+  while n < 20
     let line = getline(n)
     if line =~ '^\s*\(#\s*\(include\|import\)\>\|@import\>\|/\*\)'
       setf objcpp
diff --git a/runtime/doc/change.txt b/runtime/doc/change.txt
index 9e482c82c..9c52e8d01 100644
--- a/runtime/doc/change.txt
+++ b/runtime/doc/change.txt
@@ -1458,7 +1458,7 @@ text.  Put it in your autoload directory, e.g. ~/.vim/autoload/format.vim: >
   func! format#Format()
     " only reformat on explicit gq command
     if mode() != 'n'
-      " fall back to Vims internal reformatting
+      " fall back to Vim's internal reformatting
       return 1
     endif
     let lines = getline(v:lnum, v:lnum + v:count - 1)
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 981a35834..7dbd992bd 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 Mar 26
+*eval.txt*	For Vim version 8.2.  Last change: 2020 Apr 08
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -5137,10 +5137,11 @@ getcompletion({pat}, {type} [, {filtered}])		*getcompletion()*
 <
 							*getcurpos()*
 getcurpos()	Get the position of the cursor.  This is like getpos('.'), but
-		includes an extra item in the list:
-		    [bufnum, lnum, col, off, curswant] ~
+		includes an extra "curswant" item in the list:
+		    [0, lnum, col, off, curswant] ~
 		The "curswant" number is the preferred column when moving the
 		cursor vertically.  Also see |getpos()|.
+		The first "bufnum" item is always zero.
 
 		This can be used to save and restore the cursor position: >
 			let save_cursor = getcurpos()
@@ -8917,18 +8918,10 @@ settagstack({nr}, {dict} [, {action}])			*settagstack()*
 
 		Returns zero for success, -1 for failure.
 
-		Examples:
-		    Set current index of the tag stack to 4: >
-			call settagstack(1005, {'curidx' : 4})
-
-<		    Empty the tag stack of window 3: >
+		Examples (for more examples see |tagstack-examples||):
+		    Empty the tag stack of window 3: >
 			call settagstack(3, {'items' : []})
 
-<		    Push a new item onto the tag stack: >
-			let pos = [bufnr('myfile.txt'), 10, 1, 0]
-			let newtag = [{'tagname' : 'mytag', 'from' : pos}]
-			call settagstack(2, {'items' : newtag}, 'a')
-
 <		    Save and restore the tag stack: >
 			let stack = gettagstack(1003)
 			" do something else
@@ -10876,6 +10869,7 @@ hpux			HP-UX version of Vim.
 iconv			Can use iconv() for conversion.
 insert_expand		Compiled with support for CTRL-X expansion commands in
 			Insert mode. (always true)
+job			Compiled with support for |channel| and |job|
 jumplist		Compiled with |jumplist| support.
 keymap			Compiled with 'keymap' support.
 lambda			Compiled with |lambda| support.
@@ -11240,8 +11234,8 @@ It is allowed to define another function inside a function body.
 You can provide default values for positional named arguments.  This makes
 them optional for function calls.  When a positional argument is not
 specified at a call, the default expression is used to initialize it.
-This only works for functions declared with `:function`, not for lambda
-expressions |expr-lambda|.
+This only works for functions declared with `:function` or `:def`, not for
+lambda expressions |expr-lambda|.
 
 Example: >
   function Something(key, value = 10)
@@ -11279,9 +11273,10 @@ Example that does NOT work: >
   :function NoGood(first = a:second, second = 10)
   :endfunction
 <
-When not using "...", the number of arguments in a function call must be equal
-to the number of mandatory named arguments.  When using "...", the number of
-arguments may be larger.
+When not using "...", the number of arguments in a function call must be at
+least equal to the number of mandatory named arguments.  When using "...", the
+number of arguments may be larger than the total of mandatory and optional
+arguments.
 
 							*local-variables*
 Inside a function local variables can be used.  These will disappear when the
@@ -11638,7 +11633,7 @@ This does NOT work: >
 			Like above, but append/add/subtract the value for each
 			|List| item.
 
-:let [{name}, ..., ; {lastname}] = {expr1}
+:let [{name}, ..., ; {lastname}] = {expr1}				*E452*
 			Like |:let-unpack| above, but the |List| may have more
 			items than there are names.  A list of the remaining
 			items is assigned to {lastname}.  If there are no
diff --git a/runtime/doc/gui_w32.txt b/runtime/doc/gui_w32.txt
index fda361833..30e228782 100644
--- a/runtime/doc/gui_w32.txt
+++ b/runtime/doc/gui_w32.txt
@@ -199,7 +199,7 @@ With..." menu.  This means you can use Vim to edit many files.  Not every file
 One reason to add this is to be able to edit HTML files directly from Internet
 Explorer.  To enable this use the "Tools" menu, "Internet Options..." entry.
 In the dialog select the "Programs" tab and select Vim in the "HTML editor"
-choice.  If it's not there than installing didn't work properly.
+choice.  If it's not there then installing didn't work properly.
 
 Doing this manually can be done with this script:
 
diff --git a/runtime/doc/help.txt b/runtime/doc/help.txt
index f2b78466e..d858be1db 100644
--- a/runtime/doc/help.txt
+++ b/runtime/doc/help.txt
@@ -1,4 +1,4 @@
-*help.txt*	For Vim version 8.2.  Last change: 2019 Jul 21
+*help.txt*	For Vim version 8.2.  Last change: 2020 Apr 05
 
 			VIM - main help file
 									 k
@@ -31,7 +31,7 @@ Get specific help:  It is possible to go directly to whatever you want help
 		    help entries for "word".
 		    Or use ":helpgrep word". |:helpgrep|
 
-  Getting started:  Do the Vim tutor, a 20 minute interactive training for the
+  Getting started:  Do the Vim tutor, a 30-minute interactive course for the
 		    basic commands, see |vimtutor|.
 		    Read the user manual from start to end: |usr_01.txt|
 
@@ -41,7 +41,7 @@ through the help of many others.  See |credits|.
 						*doc-file-list* *Q_ct*
 BASIC:
 |quickref|	Overview of the most common commands you will use
-|tutor|		20 minutes training course for beginners
+|tutor|		30-minute interactive course for beginners
 |copying|	About copyrights
 |iccf|		Helping poor children in Uganda
 |sponsor|	Sponsor Vim development, become a registered Vim user
@@ -144,7 +144,7 @@ Special issues ~
 |remote.txt|	using Vim as a server or client
 |term.txt|	using different terminals and mice
 |terminal.txt|	Terminal window support
-|popup.txt|	popop window support
+|popup.txt|	popup window support
 
 Programming language support ~
 |indent.txt|	automatic indenting for C and other languages
diff --git a/runtime/doc/insert.txt b/runtime/doc/insert.txt
index 934c1c57a..99c2d40e7 100644
--- a/runtime/doc/insert.txt
+++ b/runtime/doc/insert.txt
@@ -154,6 +154,8 @@ CTRL-R CTRL-R {register}			*i_CTRL-R_CTRL-R*
 		you also want to avoid these, use CTRL-R CTRL-O, see below.
 		The '.' register (last inserted text) is still inserted as
 		typed.
+		After this command, the '.' register contains the text from
+		the register as if it was inserted by typing it.
 
 CTRL-R CTRL-O {register}			*i_CTRL-R_CTRL-O*
 		Insert the contents of a register literally and don't
@@ -163,6 +165,9 @@ CTRL-R CTRL-O {register}			*i_CTRL-R_CTRL-O*
 		Does not replace characters!
 		The '.' register (last inserted text) is still inserted as
 		typed.
+		After this command, the '.' register contains the command
+		typed and not the text. I.e., the literals "^R^O" and not the
+		text from the register.
 
 CTRL-R CTRL-P {register}			*i_CTRL-R_CTRL-P*
 		Insert the contents of a register literally and fix the
@@ -170,6 +175,9 @@ CTRL-R CTRL-P {register}			*i_CTRL-R_CTRL-P*
 		Does not replace characters!
 		The '.' register (last inserted text) is still inserted as
 		typed.
+		After this command, the '.' register contains the command
+		typed and not the text. I.e., the literals "^R^P" and not the
+		text from the register.
 
 						*i_CTRL-T*
 CTRL-T		Insert one shiftwidth of indent at the start of the current
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index b17be8646..9410726d0 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 Mar 02
+*options.txt*	For Vim version 8.2.  Last change: 2020 Apr 10
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -7957,7 +7957,7 @@ A jump table for the options with a short description can be found at |Q_op|.
 		- VIM		the server name |v:servername| or "VIM"
 	Only works if the terminal supports setting window titles
 	(currently Amiga console, Win32 console, all GUI versions and
-	terminals with a non- empty 't_ts' option - these are Unix xterm and
+	terminals with a non-empty 't_ts' option - these are Unix xterm and
 	iris-ansi by default, where 't_ts' is taken from the builtin termcap).
 								*X11*
 	When Vim was compiled with HAVE_X11 defined, the original title will
diff --git a/runtime/doc/os_beos.txt b/runtime/doc/os_beos.txt
index ba0e07f8d..916162fa4 100644
--- a/runtime/doc/os_beos.txt
+++ b/runtime/doc/os_beos.txt
@@ -138,7 +138,7 @@ and merge it back in.
 
 6. The $VIM directory					*beos-vimdir*
 
-$VIM is the symbolic name for the place where Vims support files are stored.
+$VIM is the symbolic name for the place where Vim's support files are stored.
 The default value for $VIM is set at compile time and can be determined with >
 
   :version
diff --git a/runtime/doc/os_haiku.txt b/runtime/doc/os_haiku.txt
index aabfe1c85..2c02994d5 100644
--- a/runtime/doc/os_haiku.txt
+++ b/runtime/doc/os_haiku.txt
@@ -88,7 +88,7 @@ Stuff that does not work yet:
 
 4. The $VIM directory					*haiku-vimdir*
 
-$VIM is the symbolic name for the place where Vims support files are stored.
+$VIM is the symbolic name for the place where Vim's support files are stored.
 The default value for $VIM is set at compile time and can be determined with >
 
   :version
diff --git a/runtime/doc/tags b/runtime/doc/tags
index 379af501d..68ac1a9ed 100644
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -4244,6 +4244,7 @@ E447	editing.txt	/*E447*
 E448	various.txt	/*E448*
 E449	eval.txt	/*E449*
 E45	message.txt	/*E45*
+E452	eval.txt	/*E452*
 E455	print.txt	/*E455*
 E456	print.txt	/*E456*
 E457	print.txt	/*E457*
@@ -9348,6 +9349,7 @@ tags-file-format	tagsrch.txt	/*tags-file-format*
 tags-option	tagsrch.txt	/*tags-option*
 tagsrch.txt	tagsrch.txt	/*tagsrch.txt*
 tagstack	tagsrch.txt	/*tagstack*
+tagstack-examples	tagsrch.txt	/*tagstack-examples*
 tan()	eval.txt	/*tan()*
 tanh()	eval.txt	/*tanh()*
 tar	pi_tar.txt	/*tar*
@@ -9503,6 +9505,7 @@ test_ignore_error()	testing.txt	/*test_ignore_error()*
 test_null_blob()	testing.txt	/*test_null_blob()*
 test_null_channel()	testing.txt	/*test_null_channel()*
 test_null_dict()	testing.txt	/*test_null_dict()*
+test_null_function()	testing.txt	/*test_null_function()*
 test_null_job()	testing.txt	/*test_null_job()*
 test_null_list()	testing.txt	/*test_null_list()*
 test_null_partial()	testing.txt	/*test_null_partial()*
diff --git a/runtime/doc/tagsrch.txt b/runtime/doc/tagsrch.txt
index ed406e8dc..0b22deba1 100644
--- a/runtime/doc/tagsrch.txt
+++ b/runtime/doc/tagsrch.txt
@@ -1,4 +1,4 @@
-*tagsrch.txt*   For Vim version 8.2.  Last change: 2020 Jan 30
+*tagsrch.txt*   For Vim version 8.2.  Last change: 2020 Apr 03
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -185,6 +185,29 @@ commands explained above the tag stack will look like this:
 The |gettagstack()| function returns the tag stack of a specified window. The
 |settagstack()| function modifies the tag stack of a window.
 
+							*tagstack-examples*
+Write to the tag stack just like `:tag` but with a user-defined
+jumper#jump_to_tag function: >
+	" Store where we're jumping from before we jump.
+	let tag = expand('<cword>')
+	let pos = [bufnr()] + getcurpos()[1:]
+	let item = {'bufnr': pos[0], 'from': pos, 'tagname': tag}
+	if jumper#jump_to_tag(tag)
+		" Jump was successful, write previous location to tag stack.
+		let winid = win_getid()
+		let stack = gettagstack(winid)
+		let stack['items'] = [item]
+		call settagstack(winid, stack, 't')
+	endif
+<
+Set current index of the tag stack to 4: >
+	call settagstack(1005, {'curidx' : 4})
+<
+Push a new item onto the tag stack: >
+	let pos = [bufnr('myfile.txt'), 10, 1, 0]
+	let newtag = [{'tagname' : 'mytag', 'from' : pos}]
+	call settagstack(2, {'items' : newtag}, 'a')
+<
 							*E73*
 When you try to use the tag stack while it doesn't contain anything you will
 get an error message.
diff --git a/runtime/doc/terminal.txt b/runtime/doc/terminal.txt
index ac9d65841..8105b072f 100644
--- a/runtime/doc/terminal.txt
+++ b/runtime/doc/terminal.txt
@@ -960,7 +960,7 @@ Currently supported commands:
 		directory, thus it's best to use the full path.
 
 		[options] is only used when opening a new window.  If present,
-		it must be a Dict.  Similarly to |++opt|, These entries are
+		it must be a Dict.  Similarly to |++opt|, these entries are
 		recognized:
 		  "ff"		file format: "dos", "mac" or "unix"
 		  "fileformat"	idem
diff --git a/runtime/doc/testing.txt b/runtime/doc/testing.txt
index 458aa7cbb..9c87cba64 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 Feb 22
+*testing.txt*	For Vim version 8.2.  Last change: 2020 Apr 10
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -107,7 +107,7 @@ test_null_dict()					*test_null_dict()*
 
 
 test_null_function()					*test_null_function()*
-		Return a |FuncRef| that is null. Only useful for testing.
+		Return a |Funcref| that is null. Only useful for testing.
 
 
 test_null_job()						*test_null_job()*
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index afa40227b..c7269216e 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 Mar 27
+*todo.txt*      For Vim version 8.2.  Last change: 2020 Apr 10
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -39,9 +39,19 @@ browser use: https://github.com/vim/vim/issues/1234
 -------------------- Known bugs and current work -----------------------
 
 Vim9 script:
+func and partial types:
+- check using func type with default arguments and varargs.
+	func(type, type?, ...): rettype
+- Type checking arguments when calling :def function and test
+- Calling unknown user function does not give proper error message:
+      assert_equal('123text', RefDef2Arg())  typo for "RetDef2Arg"
 - "func" inside "vim9script" doesn't work?  (Ben Jackson, #5670)
-- "let x = x + 1" should say that "x" is not defined (declare local after
-  evaluating expresion).
+- :func inside vim9script must still use a:arg
+- define function and create funcref in one step:
+	let ref = def(arg: type): rettype
+	    body
+	enddef
+Also:
 - "echo Func()" is an error if Func() does not return anything.
 - better implementation for partial and tests for that.
 - Make "g:imported = Export.exported" work in Vim9 script.
@@ -50,7 +60,6 @@ Vim9 script:
 - Disallow unlet for local/script/imported vars
 - Support type for ":let"/":const" at script level for Vim9 script.
     (Ben Jackson, #5671)
-- :func inside vim9script must still use a:arg
 - Make "++nr" work.
 - Check that import in legacy script works and puts item in s:
 - Error in any command in "vim9script" aborts sourcing.
@@ -60,23 +69,19 @@ Vim9 script:
 - Test try/catch and throw better, also nested.
   Test return inside try/finally jumps to finally and then returns.
 - call autoload function.
-- Type checking arguments when calling :def function
 - Implement more expressions, e.g. [a:b]
 - can use func as reference:
 	def SomeFunc() ...
 	map(list, SomeFunc)
-- define function and create funcref in one step:
-	let ref = def(arg: type): rettype
-  Also extends lambda
 - Test: Function declared inside a :def function is local, disappears at the
   end of the function.  Unless g: is used, just like with variables.
 - Can we omit \ for line continuation inside (), {}, ?
   Requires parsing while reading a function.  Like fgetline in do_one_cmd()?
 - implement :type
+- import type declaration?
 - implement class
 - implement interface
 - predefined class: Promise<T>
-- import statement for type declaration?
 - Make accessing varargs faster: arg[expr]
 	EVAL expr
 	LOADVARARG (varags idx)
@@ -106,6 +111,8 @@ Popup windows:
 - Figure out the size and position better if wrapping inserts indent
 
 Text properties:
+- Patch to fix that split / join does not update properties properly (Axel
+  Forsman, #5839)  Alternative: #5875.
 - "cc" does not call inserted_bytes(). (Axel Forsman, #5763)
 - Get E685 with a sequence of commands. (#5674)
 - Combining text property with 'cursorline' does not always work (Billie
@@ -176,17 +183,22 @@ Terminal emulator window:
   conversions.
 
 Error numbers available:
-E451, E452, E453, E454, E460, E489, E491, E565, E578, E610, E611, E653,
+E453, E454, E460, E489, E491, E565, E578, E610, E611, E653,
 E654, E856, E857, E861, E900
 
+Buffer autocommands are a bit inconsistent.  Add a separate set of
+autocommands for the buffer lifecycle:
+    BufIsCreated  (after buffer ID exists)
+    BufIsLoaded   (after buffer ID has content)
+    BufIsUnloaded (after buffer ID no longer has)
+    BufIsWiped    (after buffer ID was wiped)
+    BufIsRenamed  (after buffer ID gets another name)
+The buffer list and windows are locked, no changes possible
+
 Patch to fix drawing error with DirectX. (James Grant, #5688)
 Causes flicker on resizing.
 
-Patch to make lambda functions faster (Ken Takata)
-https://github.com/vim/vim/pull/5727
- LGTM remark: size derived from user input (getenv).  Don't see how.
-
-Patch to use more FOR_ALL_ macros and use them. (Yegappan Lakshmanan, #5339)
+In gvim always set t_Co to 16777216 (#5903)
 
 Patch to explain use of "%" in :!.  (David Briscoe, #5591)
 
diff --git a/runtime/doc/usr_22.txt b/runtime/doc/usr_22.txt
index 00c0007de..bdba90614 100644
--- a/runtime/doc/usr_22.txt
+++ b/runtime/doc/usr_22.txt
@@ -1,4 +1,4 @@
-*usr_22.txt*	For Vim version 8.2.  Last change: 2019 Dec 07
+*usr_22.txt*	For Vim version 8.2.  Last change: 2020 Mar 28
 
 		     VIM USER MANUAL - by Bram Moolenaar
 
@@ -84,7 +84,7 @@ browser.  This is what you get: >
      	 a................Hiding Files or Directories................|netrw-a|
      	 mb...............Bookmarking a Directory....................|netrw-mb|
      	 gb...............Changing to a Bookmarked Directory.........|netrw-gb|
-     	 c................Make Browsing Directory The Current Dir....|netrw-c|
+     	 cd...............Make Browsing Directory The Current Dir....|netrw-c|
      	 d................Make A New Directory.......................|netrw-d|
      	 D................Deleting Files or Directories..............|netrw-D|
      	 <c-h>............Edit File/Directory Hiding List............|netrw-ctrl-h|
@@ -121,7 +121,7 @@ The following normal-mode commands may be used to control the browser display:
 
 As a sampling of extra normal-mode commands:
 
-	c		Change Vim's notion of the current directory to be
+	cd		Change Vim's notion of the current directory to be
 			the same as the browser directory.  (see
 			|g:netrw_keepdir| to control this, too)
 	R		Rename the file or directory under the cursor; a
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index 1c180708a..1337d4a6d 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -1,4 +1,4 @@
-*vim9.txt*	For Vim version 8.2.  Last change: 2020 Apr 03
+*vim9.txt*	For Vim version 8.2.  Last change: 2020 Apr 09
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -120,6 +120,13 @@ and without `:let`, because there is no rule about where they are declared.
 Variables cannot shadow previously defined variables.
 Variables may shadow Ex commands, rename the variable if needed.
 
+Global variables must be prefixed with "g:", also at the script level.
+However, global user defined functions are used without "g:". >
+	vim9script
+	let script_local = 'text'
+	let g:global = 'value'
+	let Funcref = ThatFunction
+
 Since "&opt = value" is now assigning a value to option "opt", ":&" cannot be
 used to repeat a `:substitute` command.
 
@@ -156,6 +163,18 @@ since the function has to be looked up by name.  And a typo in the function
 name will only be found when the call is executed.
 
 
+Omitting function() ~
+
+A user defined function can be used as a function reference in an expression
+without `function()`. The argument types and return type will then be checked.
+The function must already have been defined. >
+
+	let Funcref = MyFunction
+
+When using `function()` the resulting type is "func", a function with any
+number of arguments and any return type.  The function can be defined later.
+
+
 No curly braces expansion ~
 
 |curly-braces-names| cannot be used.
@@ -213,8 +232,7 @@ few exceptions.
 	blob		non-empty
 	list		non-empty (different from JavaScript)
 	dictionary	non-empty (different from JavaScript)
-	func		when not NULL
-	partial		when not NULL
+	func		when there is a function name
 	special		v:true
 	job		when not NULL
 	channel		when not NULL
@@ -301,6 +319,7 @@ The following builtin types are supported:
 	job
 	channel
 	func
+	func: {type}
 	func({type}, ...)
 	func({type}, ...): {type}
 
@@ -318,12 +337,22 @@ memory.
 
 A partial and function can be declared in more or less specific ways:
 func				any kind of function reference, no type
-				checking
+				checking for arguments or return value
 func: {type}			any number and type of arguments with specific
 				return type
-func({type} ...)		function with argument types, does not return
+func({type})			function with argument type, does not return
 				a value
-func({type} ...): {type}	function with argument types and return type
+func({type}): {type}		function with argument type and return type
+func(?{type})			function with type of optional argument, does
+				not return a value
+func(...{type})			function with type of variable number of
+				arguments, does not return a value
+func({type}, ?{type}, ...{type}): {type}
+				function with:
+				- type of mandatory argument
+				- type of optional argument
+				- type of variable number of arguments
+				- return type
 
 If the return type is "void" the function does not return a value.
 
diff --git a/runtime/ftplugin/man.vim b/runtime/ftplugin/man.vim
index d7ce4d8ac..44efd4eb6 100644
--- a/runtime/ftplugin/man.vim
+++ b/runtime/ftplugin/man.vim
@@ -1,8 +1,7 @@
 " Vim filetype plugin file
 " Language:	man
 " Maintainer:	SungHyun Nam <goweol@gmail.com>
-" Last Change: 	2020 Mar 25
-"		(fix by Jason Franklin)
+" Last Change: 	2020 Apr 6
 
 " To make the ":Man" command available before editing a manual page, source
 " this script from your startup vimrc file.
@@ -205,6 +204,7 @@ func <SID>GetPage(cmdmods, ...)
     let s:env_has_u = (v:shell_error == 0)
   endif
   let env_cmd = s:env_has_u ? 'env -u MANPAGER' : 'env MANPAGER=cat'
+  let env_cmd .= ' GROFF_NO_SGR=1'
   let man_cmd = env_cmd . ' man ' . s:GetCmdArg(sect, page) . ' | col -b'
   silent exec "r !" . man_cmd
 
diff --git a/runtime/ftplugin/rst.vim b/runtime/ftplugin/rst.vim
index f0646e9f3..ff7a402d1 100644
--- a/runtime/ftplugin/rst.vim
+++ b/runtime/ftplugin/rst.vim
@@ -3,7 +3,7 @@
 " Maintainer: Marshall Ward <marshall.ward@gmail.com>
 " Original Maintainer: Nikolai Weibull <now@bitwi.se>
 " Website: https://github.com/marshallward/vim-restructuredtext
-" Latest Revision: 2018-12-29
+" Latest Revision: 2020-03-31
 
 if exists("b:did_ftplugin")
     finish
@@ -34,7 +34,7 @@ if exists("g:rst_style") && g:rst_style != 0
     setlocal expandtab shiftwidth=3 softtabstop=3 tabstop=8
 endif
 
-if has('patch-7.3.867')  " Introduced the TextChanged event.
+if g:rst_fold_enabled != 0 && has('patch-7.3.867')  " Introduced the TextChanged event.
   setlocal foldmethod=expr
   setlocal foldexpr=RstFold#GetRstFold()
   setlocal foldtext=RstFold#GetRstFoldText()
diff --git a/runtime/indent/rst.vim b/runtime/indent/rst.vim
index c1ef8c995..a31ad8e08 100644
--- a/runtime/indent/rst.vim
+++ b/runtime/indent/rst.vim
@@ -1,7 +1,9 @@
 " Vim indent file
-" Language:             reStructuredText Documentation Format
-" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
-" Latest Revision:      2011-08-03
+" Vim reST indent file
+" Language: reStructuredText Documentation Format
+" Maintainer: Marshall Ward <marshall.ward@gmail.com>
+" Previous Maintainer: Nikolai Weibull <now@bitwi.se>
+" Latest Revision: 2020-03-31
 
 if exists("b:did_indent")
   finish
@@ -18,6 +20,12 @@ endif
 
 let s:itemization_pattern = '^\s*[-*+]\s'
 let s:enumeration_pattern = '^\s*\%(\d\+\|#\)\.\s\+'
+let s:note_pattern = '^\.\. '
+
+function! s:get_paragraph_start()
+    let paragraph_mark_start = getpos("'{")[1]
+    return getline(paragraph_mark_start) =~ '\S' ? paragraph_mark_start : paragraph_mark_start + 1
+endfunction
 
 function GetRSTIndent()
   let lnum = prevnonblank(v:lnum - 1)
@@ -28,6 +36,13 @@ function GetRSTIndent()
   let ind = indent(lnum)
   let line = getline(lnum)
 
+  let psnum = s:get_paragraph_start()
+  if psnum != 0
+      if getline(psnum) =~ s:note_pattern
+          let ind = 3
+      endif
+  endif
+
   if line =~ s:itemization_pattern
     let ind += 2
   elseif line =~ s:enumeration_pattern
diff --git a/runtime/syntax/rst.vim b/runtime/syntax/rst.vim
index c865cf690..a90c90be2 100644
--- a/runtime/syntax/rst.vim
+++ b/runtime/syntax/rst.vim
@@ -1,9 +1,9 @@
-" Vim syntax file
+" Vim reST syntax file
 " Language: reStructuredText documentation format
 " Maintainer: Marshall Ward <marshall.ward@gmail.com>
 " Previous Maintainer: Nikolai Weibull <now@bitwi.se>
 " Website: https://github.com/marshallward/vim-restructuredtext
-" Latest Revision: 2018-12-29
+" Latest Revision: 2020-03-31
 
 if exists("b:current_syntax")
   finish
@@ -21,7 +21,7 @@ syn cluster rstCruft                contains=rstEmphasis,rstStrongEmphasis,
       \ rstInlineInternalTargets,rstFootnoteReference,rstHyperlinkReference
 
 syn region  rstLiteralBlock         matchgroup=rstDelimiter
-      \ start='::\_s*\n\ze\z(\s\+\)' skip='^$' end='^\z1\@!'
+      \ start='\(^\z(\s*\).*\)\@<=::\n\s*\n' skip='^\s*$' end='^\(\z1\s\+\)\@!'
       \ contains=@NoSpell
 
 syn region  rstQuotedLiteralBlock   matchgroup=rstDelimiter
@@ -90,16 +90,28 @@ execute 'syn match rstSubstitutionDefinition contained' .
       \ ' /|.*|\_s\+/ nextgroup=@rstDirectives'
 
 function! s:DefineOneInlineMarkup(name, start, middle, end, char_left, char_right)
+  " Only escape the first char of a multichar delimiter (e.g. \* inside **)
+  if a:start[0] == '\'
+    let first = a:start[0:1]
+  else
+    let first = a:start[0]
+  endif
+
+  execute 'syn match rstEscape'.a:name.' +\\\\\|\\'.first.'+'.' contained'
+
   execute 'syn region rst' . a:name .
         \ ' start=+' . a:char_left . '\zs' . a:start .
         \ '\ze[^[:space:]' . a:char_right . a:start[strlen(a:start) - 1] . ']+' .
         \ a:middle .
-        \ ' end=+\S' . a:end . '\ze\%($\|\s\|[''"’)\]}>/:.,;!?\\-]\)+'
+        \ ' end=+' . a:end . '\ze\%($\|\s\|[''"’)\]}>/:.,;!?\\-]\)+' .
+        \ ' contains=rstEscape' . a:name
+
+  execute 'hi def link rstEscape'.a:name.' Special'
 endfunction
 
 function! s:DefineInlineMarkup(name, start, middle, end)
   let middle = a:middle != "" ?
-        \ (' skip=+\\\\\|\\' . a:middle . '+') :
+        \ (' skip=+\\\\\|\\' . a:middle . '\|\s' . a:middle . '+') :
         \ ""
 
   call s:DefineOneInlineMarkup(a:name, a:start, middle, a:end, "'", "'")
@@ -161,7 +173,7 @@ syn match   rstStandaloneHyperlink  contains=@NoSpell
       \ "\<\%(\%(\%(https\=\|file\|ftp\|gopher\)://\|\%(mailto\|news\):\)[^[:space:]'\"<>]\+\|www[[:alnum:]_-]*\.[[:alnum:]_-]\+\.[^[:space:]'\"<>]\+\)[[:alnum:]/]"
 
 syn region rstCodeBlock contained matchgroup=rstDirective
-      \ start=+\%(sourcecode\|code\%(-block\)\=\)::\s\+.*\_s*\n\ze\z(\s\+\)+
+      \ start=+\%(sourcecode\|code\%(-block\)\=\)::\s*\(\S*\)\?\s*\n\%(\s*:.*:\s*.*\s*\n\)*\n\ze\z(\s\+\)+
       \ skip=+^$+
       \ end=+^\z1\@!+
       \ contains=@NoSpell
diff --git a/runtime/syntax/vhdl.vim b/runtime/syntax/vhdl.vim
index b40b09652..06fc2e795 100644
--- a/runtime/syntax/vhdl.vim
+++ b/runtime/syntax/vhdl.vim
@@ -3,7 +3,7 @@
 " Maintainer:		Daniel Kho <daniel.kho@logik.haus>
 " Previous Maintainer:	Czo <Olivier.Sirol@lip6.fr>
 " Credits:		Stephan Hegel <stephan.hegel@snc.siemens.com.cn>
-" Last Changed:		2020 Mar 09 by Daniel Kho
+" Last Changed:		2020 Apr 04 by Daniel Kho
 
 " quit when a syntax file was already loaded
 if exists("b:current_syntax")
@@ -16,10 +16,10 @@ set cpo&vim
 " case is not significant
 syn case	ignore
 
-" VHDL keywords
-syn keyword	vhdlStatement	access after alias all assert
+" VHDL 1076-2019 keywords
+syn keyword	vhdlStatement	access after alias all
 syn keyword 	vhdlStatement	architecture array attribute
-syn keyword 	vhdlStatement	assume assume_guarantee
+syn keyword 	vhdlStatement	assert assume
 syn keyword 	vhdlStatement	begin block body buffer bus
 syn keyword 	vhdlStatement	case component configuration constant
 syn keyword 	vhdlStatement	context cover
@@ -34,20 +34,19 @@ syn keyword 	vhdlStatement	map
 syn keyword 	vhdlStatement	new next null
 syn keyword 	vhdlStatement	of on open others out
 syn keyword 	vhdlStatement	package port postponed procedure process pure
-syn keyword 	vhdlStatement	parameter property protected
+syn keyword 	vhdlStatement	parameter property protected private
 syn keyword 	vhdlStatement	range record register reject report return
-syn keyword 	vhdlStatement	release restrict restrict_guarantee
-syn keyword 	vhdlStatement	select severity signal shared
-syn keyword 	vhdlStatement	subtype
+syn keyword 	vhdlStatement	release restrict
+syn keyword 	vhdlStatement	select severity signal shared subtype
 syn keyword 	vhdlStatement	sequence strong
 syn keyword 	vhdlStatement	then to transport type
 syn keyword 	vhdlStatement	unaffected units until use
-syn keyword 	vhdlStatement	variable
-" VHDL-2019 interface
-syn keyword 	vhdlStatement	view
-syn keyword 	vhdlStatement	vmode vprop vunit
+syn keyword 	vhdlStatement	variable view
+syn keyword 	vhdlStatement	vpkg vmode vprop vunit
 syn keyword 	vhdlStatement	wait when while with
-syn keyword 	vhdlStatement	note warning error failure
+
+" VHDL predefined severity levels
+syn keyword 	vhdlAttribute	note warning error failure
 
 " Linting of conditionals.
 syn match	vhdlStatement	"\<\(if\|else\)\>"
@@ -265,4 +264,5 @@ let b:current_syntax = "vhdl"
 
 let &cpo = s:cpo_save
 unlet s:cpo_save
+
 " vim: ts=8
diff --git a/runtime/tutor/tutor b/runtime/tutor/tutor
index 426fb5756..3add4f66d 100644
--- a/runtime/tutor/tutor
+++ b/runtime/tutor/tutor
@@ -7,7 +7,7 @@
      enough of the commands that you will be able to easily use Vim as
      an all-purpose editor.
 
-     The approximate time required to complete the tutor is 25-30 minutes,
+     The approximate time required to complete the tutor is 30 minutes,
      depending upon how much time is spent with experimentation.
 
      ATTENTION:
diff --git a/runtime/tutor/tutor.utf-8 b/runtime/tutor/tutor.utf-8
index 426fb5756..3add4f66d 100644
--- a/runtime/tutor/tutor.utf-8
+++ b/runtime/tutor/tutor.utf-8
@@ -7,7 +7,7 @@
      enough of the commands that you will be able to easily use Vim as
      an all-purpose editor.
 
-     The approximate time required to complete the tutor is 25-30 minutes,
+     The approximate time required to complete the tutor is 30 minutes,
      depending upon how much time is spent with experimentation.
 
      ATTENTION: