25 files changed, 349 insertions, 148 deletions

diff --git a/runtime/compiler/eslint.vim b/runtime/compiler/eslint.vim
new file mode 100644
index 0000000000..1e7af2b182
--- /dev/null
+++ b/runtime/compiler/eslint.vim
@@ -0,0 +1,16 @@
+" Vim compiler file
+" Compiler:    ESLint for JavaScript
+" Maintainer:  Romain Lafourcade <romainlafourcade@gmail.com>
+" Last Change: 2020 May 17
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "eslint"
+
+if exists(":CompilerSet") != 2
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+CompilerSet makeprg=eslint\ --format\ compact
+CompilerSet errorformat=%f:\ line\ %l\\,\ col\ %c\\,\ %m,%-G%.%#
diff --git a/runtime/compiler/standard.vim b/runtime/compiler/standard.vim
new file mode 100644
index 0000000000..b6bcf1f6b0
--- /dev/null
+++ b/runtime/compiler/standard.vim
@@ -0,0 +1,16 @@
+" Vim compiler file
+" Compiler:    Standard for JavaScript
+" Maintainer:  Romain Lafourcade <romainlafourcade@gmail.com>
+" Last Change: 2020 May 17
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "standard"
+
+if exists(":CompilerSet") != 2
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+CompilerSet makeprg=standard
+CompilerSet errorformat=%f:\ line\ %l\\,\ col\ %c\\,\ %m,%-G%.%#
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 1e0760fea2..89f011b8cf 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 Apr 19
+*eval.txt*	For Vim version 8.2.  Last change: 2020 May 25
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -584,6 +584,8 @@ adict.
 Weeding out entries from a Dictionary can be done with |filter()|: >
 	:call filter(dict, 'v:val =~ "x"')
 This removes all entries from "dict" with a value not matching 'x'.
+This can also be used to remove all entries: >
+	call filter(dict, 0)
 
 
 Dictionary function ~
@@ -1485,7 +1487,7 @@ the function returns: >
 	:echo Bar(6)
 <	5
 
-Note that the variables must exist in the outer scope before the lamba is
+Note that the variables must exist in the outer scope before the lambda is
 defined for this to work.  See also |:func-closure|.
 
 Lambda and closure support can be checked with: >
@@ -2916,6 +2918,7 @@ win_splitmove({nr}, {target} [, {options}])
 				Number	move window {nr} to split of {target}
 winbufnr({nr})			Number	buffer number of window {nr}
 wincol()			Number	window column of the cursor
+windowsversion()		String	MS-Windows OS version
 winheight({nr})			Number	height of window {nr}
 winlayout([{tabnr}])		List	layout of windows in tab {tabnr}
 winline()			Number	window line of the cursor
@@ -10221,7 +10224,7 @@ tr({src}, {fromstr}, {tostr})				*tr()*
 
 trim({text} [, {mask}])						*trim()*
 		Return {text} as a String where any character in {mask} is
-		removed from the beginning and  end of {text}.
+		removed from the beginning and end of {text}.
 		If {mask} is not given, {mask} is all characters up to 0x20,
 		which includes Tab, space, NL and CR, plus the non-breaking
 		space character 0xa0.
@@ -11144,6 +11147,8 @@ See |:verbose-cmd| for more information.
 			NOTE: Use ! wisely.  If used without care it can cause
 			an existing function to be replaced unexpectedly,
 			which is hard to debug.
+			NOTE: In Vim9 script script-local functions cannot be
+			deleted or redefined.
 
 			For the {arguments} see |function-argument|.
 
diff --git a/runtime/doc/if_lua.txt b/runtime/doc/if_lua.txt
index ff108eebb6..63e227d303 100644
--- a/runtime/doc/if_lua.txt
+++ b/runtime/doc/if_lua.txt
@@ -1,4 +1,4 @@
-*if_lua.txt*    For Vim version 8.2.  Last change: 2019 Jul 21
+*if_lua.txt*    For Vim version 8.2.  Last change: 2020 May 17
 
 
 		  VIM REFERENCE MANUAL    by Luis Carvalho
diff --git a/runtime/doc/index.txt b/runtime/doc/index.txt
index 78d557f51e..0d47cc2938 100644
--- a/runtime/doc/index.txt
+++ b/runtime/doc/index.txt
@@ -1,4 +1,4 @@
-*index.txt*     For Vim version 8.2.  Last change: 2020 May 10
+*index.txt*     For Vim version 8.2.  Last change: 2020 May 26
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -828,7 +828,7 @@ tag		char	      note action in Normal mode	~
 |zD|		zD		   delete folds recursively
 |zE|		zE		   eliminate all folds
 |zF|		zF		   create a fold for N lines
-|zG|		zG		   mark word as good spelled word
+|zG|		zG		   temporarily mark word as good spelled word
 |zH|		zH		   when 'wrap' off scroll half a screenwidth
 				   to the right
 |zL|		zL		   when 'wrap' off scroll half a screenwidth
@@ -837,7 +837,7 @@ tag		char	      note action in Normal mode	~
 |zN|		zN		   set 'foldenable'
 |zO|		zO		   open folds recursively
 |zR|		zR		   set 'foldlevel' to the deepest fold
-|zW|		zW		   mark word as wrong (bad) spelled word
+|zW|		zW		   temporarily mark word as bad spelled word
 |zX|		zX		   re-apply 'foldlevel'
 |z^|		z^		   cursor on line N (default line above
 				   window), otherwise like "z-"
@@ -849,7 +849,7 @@ tag		char	      note action in Normal mode	~
 				   position the cursor at the end (right side)
 				   of the screen
 |zf|		zf{motion}	   create a fold for Nmove text
-|zg|		zg		   mark word as good spelled word
+|zg|		zg		   permanently mark word as good spelled word
 |zh|		zh		   when 'wrap' off scroll screen N characters
 				   to the right
 |zi|		zi		   toggle 'foldenable'
@@ -870,7 +870,7 @@ tag		char	      note action in Normal mode	~
 |zuW|		zuW		   undo |zW|
 |zuG|		zuG		   undo |zG|
 |zv|		zv		   open enough folds to view the cursor line
-|zw|		zw		   mark word as wrong (bad) spelled word
+|zw|		zw		   permanently mark word as bad spelled word
 |zx|		zx		   re-apply 'foldlevel' and do "zv"
 |zz|		zz		   redraw, cursor line at center of window
 |z<Left>|	z<Left>		   same as "zh"
@@ -1262,6 +1262,7 @@ tag		command		action ~
 |:debug|	:deb[ug]	run a command in debugging mode
 |:debuggreedy|	:debugg[reedy]	read debug mode commands from normal input
 |:def|		:def		define a Vim9 user function
+|:defcompile|	:defc[ompile]	compile Vim9 user functions in current script
 |:delcommand|	:delc[ommand]	delete user-defined command
 |:delfunction|	:delf[unction]	delete a user function
 |:delmarks|	:delm[arks]	delete marks
diff --git a/runtime/doc/makehtml.awk b/runtime/doc/makehtml.awk
index 5e40069391..40154b063b 100644
--- a/runtime/doc/makehtml.awk
+++ b/runtime/doc/makehtml.awk
@@ -58,7 +58,7 @@ substr($0,length($0),1) == "~" { print "<B><FONT COLOR=\"PURPLE\">" substr($0,1,
 #
 #ad hoc code
 #
-/^"\|\& / {gsub(/\|/,"\\&#124;"); }
+/^"\|& / {gsub(/\|/,"\\&#124;"); }
 / = b / {gsub(/ b /," \\&#98; "); }
 #
 # one letter tag
diff --git a/runtime/doc/os_haiku.txt b/runtime/doc/os_haiku.txt
index 6eff91c275..5c520b0683 100644
--- a/runtime/doc/os_haiku.txt
+++ b/runtime/doc/os_haiku.txt
@@ -1,4 +1,4 @@
-*os_haiku.txt*	For Vim version 8.2.  Last change: 2020 Apr 30
+*os_haiku.txt*	For Vim version 8.2.  Last change: 2020 May 13
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -84,9 +84,6 @@ Stuff that does not work yet:
   in when the window is activated or deactivated (so it works best with focus-
   follows-mouse turned on).
 - The cursor does not flash.
-- Built-in terminal is not available in GUI, and does not work reliably on
-  console version as well; e.g. it is not possible to exit using the 'exit'
-  command.  If you need to use it, enable at your own risk.
 
 
 4. The $VIM directory					*haiku-vimdir*
diff --git a/runtime/doc/popup.txt b/runtime/doc/popup.txt
index fdf28a5e7a..ff99fce9ab 100644
--- a/runtime/doc/popup.txt
+++ b/runtime/doc/popup.txt
@@ -1,4 +1,4 @@
-*popup.txt*  For Vim version 8.2.  Last change: 2020 May 12
+*popup.txt*  For Vim version 8.2.  Last change: 2020 May 18
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
diff --git a/runtime/doc/repeat.txt b/runtime/doc/repeat.txt
index 365f6da1e9..29cdd73bb3 100644
--- a/runtime/doc/repeat.txt
+++ b/runtime/doc/repeat.txt
@@ -1,4 +1,4 @@
-*repeat.txt*    For Vim version 8.2.  Last change: 2020 Apr 26
+*repeat.txt*    For Vim version 8.2.  Last change: 2020 May 14
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -126,6 +126,11 @@ q{0-9a-zA-Z"}		Record typed characters into register {0-9a-zA-Z"}
 			recorded macro and the yank will overwrite the
 			recorded macro.
 
+			Note: The recording happens while you type, replaying
+			the register happens as if the keys come from a
+			mapping.  This matters, for example, for undo, which
+			only syncs when commands were typed.
+
 q			Stops recording.  (Implementation note: The 'q' that
 			stops recording is not stored in the register, unless
 			it was the result of a mapping)
@@ -137,7 +142,7 @@ q			Stops recording.  (Implementation note: The 'q' that
 			used.
 			The register is executed like a mapping, that means
 			that the difference between 'wildchar' and 'wildcharm'
-			applies.
+			applies, and undo might not be synced in the same way.
 			For "@=" you are prompted to enter an expression.  The
 			result of the expression is then executed.
 			See also |@:|.
diff --git a/runtime/doc/tags b/runtime/doc/tags
index 18e88f5708..601b95fa59 100644
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -2317,6 +2317,8 @@ $VIM_POSIX	vi_diff.txt	/*$VIM_POSIX*
 :debugg	repeat.txt	/*:debugg*
 :debuggreedy	repeat.txt	/*:debuggreedy*
 :def	vim9.txt	/*:def*
+:defc	vim9.txt	/*:defc*
+:defcompile	vim9.txt	/*:defcompile*
 :del	change.txt	/*:del*
 :delc	map.txt	/*:delc*
 :delcommand	map.txt	/*:delcommand*
@@ -4253,6 +4255,7 @@ E457	print.txt	/*E457*
 E458	message.txt	/*E458*
 E459	message.txt	/*E459*
 E46	message.txt	/*E46*
+E460	eval.txt	/*E460*
 E461	eval.txt	/*E461*
 E462	editing.txt	/*E462*
 E463	netbeans.txt	/*E463*
@@ -4678,6 +4681,7 @@ E855	autocmd.txt	/*E855*
 E858	eval.txt	/*E858*
 E859	eval.txt	/*E859*
 E86	windows.txt	/*E86*
+E861	popup.txt	/*E861*
 E862	eval.txt	/*E862*
 E863	popup.txt	/*E863*
 E864	pattern.txt	/*E864*
@@ -7700,6 +7704,7 @@ mapmode-v	map.txt	/*mapmode-v*
 mapmode-x	map.txt	/*mapmode-x*
 mapping	map.txt	/*mapping*
 mapping-functions	usr_41.txt	/*mapping-functions*
+mapset()	eval.txt	/*mapset()*
 mark	motion.txt	/*mark*
 mark-functions	usr_41.txt	/*mark-functions*
 mark-motions	motion.txt	/*mark-motions*
@@ -8383,6 +8388,7 @@ popup_findpreview()	popup.txt	/*popup_findpreview()*
 popup_getoptions()	popup.txt	/*popup_getoptions()*
 popup_getpos()	popup.txt	/*popup_getpos()*
 popup_hide()	popup.txt	/*popup_hide()*
+popup_list()	popup.txt	/*popup_list()*
 popup_locate()	popup.txt	/*popup_locate()*
 popup_menu()	popup.txt	/*popup_menu()*
 popup_menu-shortcut-example	popup.txt	/*popup_menu-shortcut-example*
@@ -9460,6 +9466,7 @@ termdebug-prompt	terminal.txt	/*termdebug-prompt*
 termdebug-starting	terminal.txt	/*termdebug-starting*
 termdebug-stepping	terminal.txt	/*termdebug-stepping*
 termdebug-variables	terminal.txt	/*termdebug-variables*
+termdebug_map_K	terminal.txt	/*termdebug_map_K*
 termdebug_popup	terminal.txt	/*termdebug_popup*
 termdebug_shortcuts	terminal.txt	/*termdebug_shortcuts*
 termdebug_use_prompt	terminal.txt	/*termdebug_use_prompt*
diff --git a/runtime/doc/terminal.txt b/runtime/doc/terminal.txt
index ddc0906a15..1a3cabbad9 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 Apr 23
+*terminal.txt*	For Vim version 8.2.  Last change: 2020 May 24
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -161,6 +161,7 @@ terminal windows may be configured using the variable
 hexadecimal color codes, similar to those accepted by |highlight-guifg|.  When
 not using GUI colors, the terminal window always uses the 16 ANSI colors of
 the underlying terminal.
+When using `term_start()` the colors can be set with the "ansi_colors" option.
 The |term_setansicolors()| function can be used to change the colors, and
 |term_getansicolors()| to get the currently used colors.
 
@@ -1305,7 +1306,7 @@ breakpoint, or use the "Clear breakpoint" right-click menu entry.
 Inspecting variables ~
 					*termdebug-variables* *:Evaluate*
  `:Evaluate`	    evaluate the expression under the cursor
- `K`		    same
+ `K`		    same (see |termdebug_map_K| to disable)
  `:Evaluate` {expr}   evaluate {expr}
  `:'<,'>Evaluate`     evaluate the Visually selected text
 
@@ -1336,6 +1337,10 @@ in a buffer with 'buftype' set to "prompt".  This works slightly differently:
 						*termdebug_use_prompt*
 Prompt mode can be used even when the |+terminal| feature is present with: >
 	let g:termdebug_use_prompt = 1
+<
+						*termdebug_map_K*
+The K key is normally mapped to :Evaluate. If you do not want this use: >
+	let g:termdebug_map_K = 0
 
 
 Communication ~
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index acc55fe337..abdd346adf 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 May 11
+*todo.txt*      For Vim version 8.2.  Last change: 2020 May 26
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -38,27 +38,19 @@ browser use: https://github.com/vim/vim/issues/1234
 							*known-bugs*
 -------------------- Known bugs and current work -----------------------
 
-Patch to test TERM signal. (Dominique, #6055)
-
-Include src/po/vim.pot
+Include src/po/vim.pot ?
 
 Vim9 script:
-Make closures work:
-  - call closure from not compiled context
-  - Create closure in a loop.  Need to make a list of them.
-Forward declarations:
-  - Cleanup when sourcing a script again: all script-local variables, imports
-    and functions are deleted.
-  - make sure only constants in declarations are executed, no function calls.
-  - Declare a variable at script level without an assignment.
-	let var: string
-    Error without a type or assignment
-	let var  # error!
 Making everything work:
+- possible memory leak in test_vim9_func through compile_nested_function.
+- memory leaks in test_vim9_expr
+- memory leaks in test_vim9_script
 - Test that a script-local function in Vim9 script cannot be deleted.
+- Make "true" and "false" work in vim9script
 - Test that a function defined inside a :def function is local to that
   function, g: functions can be defined and script-local functions cannot be
   defined.
+- make 0 == 'string' fail on the script level, like inside :def.
 - Check that when using a user function name without prefix, it does not find
   a global function.  Prefixing g: is required.
 - Compile: let [var, var] = expr
@@ -75,16 +67,21 @@ Making everything work:
 - Expand `=expr` in :next, :argedit, :argadd, :argdelete, :drop
 - Expand `=expr` in :vimgrep, :vimgrepadd, :lvimgrep, :lvimgrepadd
 - Expand `=expr` in :mkspell
+- When evaluating constants for script variables, some functions could work:
+    has('asdf'), len('string')
 - Support type for ":let"/":const" at script level for Vim9 script.
     (Ben Jackson, #5671)
     Can we share the code from ex_let_const() between direct execution and
     compiling?
 - Disallow unlet for local/script/imported vars
 - Make "++nr" work.
+- Make closures work:
+  - Create closure in a loop.  Need to make a list of them.
 - expandcmd() with `=expr` in filename uses legacy expression.
 - eval_expr() in ex_cexpr()
 - eval_expr() call in dbg_parsearg() and debuggy_find()
-- Make "true" and "false" work in vim9script
+- has() is compiled as a constant, but some checks are dynamic.
+  Check for dynamic values, such as "gui_running".
 New syntax and functionality:
 Improve error checking:
 - "echo Func()" is an error if Func() does not return anything.
@@ -113,6 +110,7 @@ Also:
 - implement class
 - implement interface
 - predefined class: Promise<T>
+- implement enum
 - Make accessing varargs faster: arg[expr]
 	EVAL expr
 	LOADVARARG (varags idx)
@@ -125,10 +123,12 @@ Further improvements:
 	    body
 	enddef
 - compile get_lambda_tv() in popup_add_timeout()
+- inline call to map() and filter()
 - compile "skip" argument of searchpair()
 - compile "expr" and "call" expression of a channel in channel_exe_cmd()?
 
 Popup windows:
+- Can put focus in another window using API and "drop". (#6077)
 - With some sequence get get hidden finished terminal buffer. (#5768)
     Cannot close popup terminal (#5744)
     Buffer can't be wiped, gets status "aF". (#5764)
@@ -201,8 +201,12 @@ Terminal emulator window:
   background process, the window remains open, because the channel still
   exists (and output still shows).  Perhaps close the window when an explicit
   ++close was used? (#5931)
+- Using "CTRL-W :confirm quite" and selecting "yes" should work like ":quit!".
+    (Harm te Hennepe, #6129)
 - When the job in the terminal doesn't use mouse events, let the scroll wheel
   scroll the scrollback, like a terminal does at the shell prompt. #2490
+  A bit like using CTRL-W N first.
+  Jump back like with "a" when any key is typed.
   And use modeless selection.  #2962
 - Use CTRL-W CTRL-K to enter a digraph? #5371
 - When Vim runs in the terminal and changes the title, the statusline needs to
@@ -232,8 +236,10 @@ Terminal emulator window:
   conversions.
 
 Error numbers available:
-E453, E454, E460, E489, E491, E610, E611, E653,
-E856, E857, E861, E900
+E453, E454, E489, E610, E611, E653, E856, E857, E861, E900
+
+Patch to fix that typval related code is spread out. (Yegappan Lakshmanan,
+#6093)
 
 Buffer autocommands are a bit inconsistent.  Add a separate set of
 autocommands for the buffer lifecycle:
@@ -254,6 +260,10 @@ Patch to explain use of "%" in :!.  (David Briscoe, #5591)
 Patch to improve Windows terminal support. (Nobuhiro Takasaki, #5546)
 Ready to include.
 
+Patch to improve use of Lua path. (Prabir Shrestha, #6098)
+
+Patch to make exepath() work better on MS-Windows. (#6115)
+
 Patch to add "-d" to xxd. (#5616)
 
 Patch for the Haiku port: #5961
@@ -271,12 +281,17 @@ Patch to support different color for undercurl in cterm.
 Patch to support cindent option to handle pragmas differently.
 (Max Rumpf, #5468)
 
+Patch to add ":syn foldlevel" to use fold level further down the line.
+(Brad King, 2016 Oct 19, update 2017 Jan 30, now in #6087)
+
 File marks merging has duplicates since 7.4.1925. (Ingo Karkat, #5733)
 
-Running test_gui and test_gui_init with Motif sometimes kills the window
-manager.  Problem with Motif? Now test_gui crashes in submenu_change().
+"make test_gui" crashed in submenu_change(). Fix and remove workaround in
+add_pixmap_args().
 Athena is OK.
 Motif: Build on Ubuntu can't enter any text in dialog text fields.
+Running test_gui and test_gui_init with Motif sometimes kills the window
+manager.  Problem with Motif?
 
 :map output does not clear the reset of the command line.
 (#5623, also see #5962)
@@ -287,6 +302,9 @@ Flag in 'formatoptions' is not used in the tests.
 Patch to add 'vtp' option. (#5344)
 Needs better docs.  Is there a better name?
 
+Patch to add argument to trim() to only trim start or end of a string.
+(Yegappan, #6126)
+
 undo result wrong: Masato Nishihata, #4798
 
 Patch for Template string: #4491.  New pull: #4634
@@ -300,6 +318,14 @@ Patch to delete BeOS code. (#5817)  Anyone who wants to keep it?
 With bash ":make" does not set v:shell_error.  Possible solution: set
 'shellpipe' to "2>&1| tee %s; exit ${PIPESTATUS[0]}"  #5994
 
+Using mode() when "/pat" is used in Visual mode returns "v" instead of "c",
+which is not useful.  Return "c/v" instead.  And "c/o" when using "d/pat".
+#6127
+
+When 'fileignorecase' is set ":e testfile.c" works to edit TestFile.c, but
+":find testfile.c" does not ignore case.
+Might be related to #6088.
+
 When changing the crypt key the buffer should be considered modified.
 Like when changing 'fileformat'.  Save the old key in save_file_ff().
 (Ninu-Ciprian Marginean)
@@ -319,6 +345,8 @@ Patch to add function to return the text used in the quickfix window.
 
 Patch to add readdirex() (Ken Takata, #5619)
 
+Wrong error when using local arglist. (Harm te Hennepe, #6133)
+
 Request to support <Cmd> in mappings, similar to how Neovim does this.
 (Daniel Hahler, #4784)
 
@@ -389,6 +417,9 @@ support combining characters. (Charles Campbell)  Also #4687
 
 Add "t" action to settagstack(): truncate and add new entries. (#5405)
 
+When 'relativenumber' is set the line just below a diff change doesn't get
+updated. (#6138)
+
 Result of synID() sometimes wrong in help files. (#5252)
 
 Status line is nut updated when splitting windows. (Marcin Szamotulski, #5496)
@@ -1329,6 +1360,8 @@ sort() is not stable when using numeric/float sort (Nikolay Pavlov, 2016 Sep
 - Add ch_readlines(): for a channel in NL mode, reads as many lines as are
   available.  Should be more efficient than looping over ch_read() with
   ch_status() to check for more.
+- If buffer contents is changed in a callback, set w_redr_status so that it
+  gets redrawn in redraw_after_callback(). #6120
 - Add a separate timeout for opening a socket.  Currently it's fixed at 50
   msec, which is too small for a remote connection. (tverniquet, #2130)
 - Problem with stderr on Windows? (Vincent Rischmann, 2016 Aug 31, #1026)
@@ -1452,9 +1485,6 @@ Also with latest version.
 
 Cannot delete a file with square brackets with delete(). (#696)
 
-Patch to add ":syn foldlevel" to use fold level further down the line.
-(Brad King, 2016 Oct 19, update 2017 Jan 30)
-
 Completion for input() does not expand environment variables. (chdiza, 2016
 Jul 25, #948)
 
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index 3eec280364..9a74b3ae7b 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 May 09
+*vim9.txt*	For Vim version 8.2.  Last change: 2020 May 25
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -41,9 +41,10 @@ A secondary goal is to avoid Vim-specific constructs and get closer to
 commonly used programming languages, such as JavaScript, TypeScript and Java.
 
 The performance improvements can only be achieved by not being 100% backwards
-compatible.  For example, in a function the arguments are not available in the
-"a:" dictionary, because creating that dictionary adds quite a lot of
-overhead.  Other differences are more subtle, such as how errors are handled.
+compatible.  For example, making function arguments available in the
+"a:" dictionary adds quite a lot of overhead.  In a Vim9 function this
+dictionary is not available.  Other differences are more subtle, such as how
+errors are handled.
 
 The Vim9 script syntax and semantics are used in:
 - a function defined with the `:def` command
@@ -79,12 +80,16 @@ Vim9 functions ~
 A function defined with `:def` is compiled.  Execution is many times faster,
 often 10x to 100x times.
 
-Many errors are already found when compiling, before the function is called.
+Many errors are already found when compiling, before the function is executed.
 The syntax is strict, to enforce code that is easy to read and understand.
 
-`:def` has no extra arguments like `:function` does: "range", "abort", "dict"
-or "closure".  A `:def` function always aborts on an error, does not get a
-range passed and cannot be a "dict" function.
+Compilation is done when the function is first called, or when the
+`:defcompile` command is encountered in the script where the function was
+defined.
+
+`:def` has no options like `:function` does: "range", "abort", "dict" or
+"closure".  A `:def` function always aborts on an error, does not get a range
+passed and cannot be a "dict" function.
 
 The argument types and return type need to be specified.  The "any" type can
 be used, type checking will then be done at runtime, like with legacy
@@ -118,8 +123,8 @@ search for the function in this order:
 - Local to the current scope and outer scopes up to the function scope.
 - Local to the current script file.
 - Imported functions, see `:import`.
-In all cases the function must be defined before used.  To make a call cycle a
-global function needs to be used. (TODO: can we fix this?)
+In all cases the function must be defined before used.  That is when it is
+first called or when `:defcompile` causes the call to be compiled.
 
 The result is that functions and variables without a namespace can always be
 found in the script, either defined there or imported.  Global functions and
@@ -127,57 +132,7 @@ variables could be defined anywhere (good luck finding where!).
 
 Global functions can be still be defined and deleted at nearly any time.  In
 Vim9 script script-local functions are defined once when the script is sourced
-and cannot be deleted.
-
-
-Four phases when loading a Vim9 script ~
-
-In legacy script the functions are created when encountered, but parsed only
-when used.  This allows for defining functions in any order and having them
-call each other, so long as the function is defined when it is called: >
-	func One()
-	   call Two()
-	endfunc
-	func Two()
-	   if cond
-	      call One()  " recursive call
-	   endif
-	endfunc
-	call One()
-
-In Vim9 script the functions are compiled.  When using the same functions as
-the above example it is not possible to compile function One without knowing
-that function Two exists. Or this would require a runtime check, which is slow
-and does not allow for compile time type checking.
-
-When sourcing a Vim9 script this happens in four phases:
-1. Cleanup: If the script was sourced before all script-local variables,
-   imports and functions are deleted.
-2. Discovery: The script is read and declarations of functions, imports and
-   variables are recognized and the type is parsed.  Variable initializers
-   that are a constant are evaluated, this can also give the type of the
-   variable.
-3. Compilation: Functions are compiled.  The script-local functions, imports
-   and variables from the discovery phase are found and types are checked.
-4. Execution: the commands in the script are executed, top to bottom.
-   Functions are skipped over, they do do not need to be processed again.
-   Variable initializers are evaluated when encountered.  Note that if a
-   function called earlier has set the value this will be over-written. It is
-   best to declare variables before where they are used to avoid confusion.
-
-The result is that items defined at the script level can be used anywhere in
-the script. This allows for putting the main function at the top: >
-	def Main()
-	  SubOne()
-	  SubTwo()
-	enddef
-	def SubOne()
-	  ...
-	def SubTwo()
-	  ...
-
-Note that script-local variables should either have a type defined or have a
-constant initializer.  Otherwise an error is given for the type being unknown.
+and cannot be deleted or replaced.
 
 
 Variable declarations with :let and :const ~
@@ -212,8 +167,8 @@ The declaration must be done earlier: >
 	endif
 	echo inner
 
-To intentionally use a variable that won't be available later, a block can be
-used: >
+To intentionally avoid a variable being available later, a block can be used:
+>
 	{
 	   let temp = 'temp'
 	   ...
@@ -437,7 +392,9 @@ THIS IS STILL UNDER DEVELOPMENT - ANYTHING CAN BREAK - ANYTHING CAN CHANGE
 			`:def`, but it is not possible to nest `:def` inside
 			`:function`, for backwards compatibility.
 
-			[!] is used as with `:function`.
+			[!] is used as with `:function`.  Note that in Vim9
+			script script-local functions cannot be deleted or
+			redefined.
 
 							*:enddef*
 :enddef			End of a function defined with `:def`.
@@ -448,6 +405,10 @@ variables can be accessed without the "s:" prefix.  They must be defined
 before the function.  If the script the function is defined in is legacy
 script, then script-local variables must be accessed with the "s:" prefix.
 
+						*:defc* *:defcompile*
+:defc[ompile]		Compile functions defined in the current script that
+			were not compiled yet.
+			This will report errors found during the compilation.
 
 						*:disa* *:disassemble*
 :disa[ssemble] {func}	Show the instructions generated for {func}.
diff --git a/runtime/ftplugin/vim.vim b/runtime/ftplugin/vim.vim
index 751a033045..150f54a54e 100644
--- a/runtime/ftplugin/vim.vim
+++ b/runtime/ftplugin/vim.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin
 " Language:	Vim
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2018 Aug 07
+" Last Change:	2020 May 17
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -12,7 +12,7 @@ endif
 let b:did_ftplugin = 1
 
 let s:cpo_save = &cpo
-set cpo-=C
+set cpo&vim
 
 if !exists('*VimFtpluginUndo')
   func VimFtpluginUndo()
@@ -63,14 +63,14 @@ if !exists("no_plugin_maps") && !exists("no_vim_maps")
   let b:did_add_maps = 1
 
   " Move around functions.
-  nnoremap <silent><buffer> [[ m':call search('^\s*fu\%[nction]\>', "bW")<CR>
-  vnoremap <silent><buffer> [[ m':<C-U>exe "normal! gv"<Bar>call search('^\s*fu\%[nction]\>', "bW")<CR>
-  nnoremap <silent><buffer> ]] m':call search('^\s*fu\%[nction]\>', "W")<CR>
-  vnoremap <silent><buffer> ]] m':<C-U>exe "normal! gv"<Bar>call search('^\s*fu\%[nction]\>', "W")<CR>
-  nnoremap <silent><buffer> [] m':call search('^\s*endf\%[unction]\>', "bW")<CR>
-  vnoremap <silent><buffer> [] m':<C-U>exe "normal! gv"<Bar>call search('^\s*endf\%[unction]\>', "bW")<CR>
-  nnoremap <silent><buffer> ][ m':call search('^\s*endf\%[unction]\>', "W")<CR>
-  vnoremap <silent><buffer> ][ m':<C-U>exe "normal! gv"<Bar>call search('^\s*endf\%[unction]\>', "W")<CR>
+  nnoremap <silent><buffer> [[ m':call search('^\s*\(fu\%[nction]\\|def\)\>', "bW")<CR>
+  vnoremap <silent><buffer> [[ m':<C-U>exe "normal! gv"<Bar>call search('^\s*\(fu\%[nction]\\|def\)\>', "bW")<CR>
+  nnoremap <silent><buffer> ]] m':call search('^\s*\(fu\%[nction]\\|def\)\>', "W")<CR>
+  vnoremap <silent><buffer> ]] m':<C-U>exe "normal! gv"<Bar>call search('^\s*\(fu\%[nction]\\|def\)\>', "W")<CR>
+  nnoremap <silent><buffer> [] m':call search('^\s*end\(f\%[unction]\\|def\)\>', "bW")<CR>
+  vnoremap <silent><buffer> [] m':<C-U>exe "normal! gv"<Bar>call search('^\s*end\(f\%[unction]\\|def\)\>', "bW")<CR>
+  nnoremap <silent><buffer> ][ m':call search('^\s*end\(f\%[unction]\\|def\)\>', "W")<CR>
+  vnoremap <silent><buffer> ][ m':<C-U>exe "normal! gv"<Bar>call search('^\s*end\(f\%[unction]\\|def\)\>', "W")<CR>
 
   " Move around comments
   nnoremap <silent><buffer> ]" :call search('^\(\s*".*\n\)\@<!\(\s*"\)', "W")<CR>
diff --git a/runtime/indent/sshconfig.vim b/runtime/indent/sshconfig.vim
new file mode 100644
index 0000000000..b456a9e3aa
--- /dev/null
+++ b/runtime/indent/sshconfig.vim
@@ -0,0 +1,34 @@
+" Vim indent file
+" Language: ssh config file
+" Maintainer: JasonKim <git@jasonk.me>
+" Last Change: 2020 May 16
+
+if exists("b:did_indent")
+  finish
+endif
+let b:did_indent = 1
+
+setlocal autoindent
+setlocal indentexpr=GetSshconfigIndent(v:lnum)
+setlocal indentkeys=o,O,*<Return>,0=~host\ ,0=~match\ ,0#,!^F
+
+let b:undo_indent = "setlocal autoindent< indentexpr< indentkeys<"
+
+if exists("*GetSshconfigIndent")
+  finish
+endif
+
+function GetSshconfigIndent(lnum)
+  let sw = shiftwidth()
+  let prev_lnum = prevnonblank(a:lnum - 1)
+  let curr_lnum = a:lnum
+  let prev_line = getline(prev_lnum)
+  let curr_line = getline(curr_lnum)
+  if curr_line =~? '^\s*\(host\|match\)\s'
+    return 0
+