the example.
		Also used for evaluating the 'formatexpr' option.

					*v:count1* *count1-variable*
v:count1
		Just like "v:count", but defaults to one when no count is
		used.

					*v:ctype* *ctype-variable*
v:ctype
		The current locale setting for characters of the runtime
		environment.  This allows Vim scripts to be aware of the
		current locale encoding.  Technical: it's the value of
		LC_CTYPE.  When not using a locale the value is "C".
		This variable can not be set directly, use the |:language|
		command.
		See |multi-lang|.

					*v:dying* *dying-variable*
v:dying
		Normally zero.  When a deadly signal is caught it's set to
		one.  When multiple signals are caught the number increases.
		Can be used in an autocommand to check if Vim didn't
		terminate normally.
		Example: >vim
		  :au VimLeave * if v:dying | echo "\nAAAAaaaarrrggghhhh!!!\n" | endif
<
		Note: if another deadly signal is caught when v:dying is one,
		VimLeave autocommands will not be executed.

				*v:echospace* *echospace-variable*
v:echospace
		Number of screen cells that can be used for an `:echo` message
		in the last screen line before causing the |hit-enter-prompt|.
		Depends on 'showcmd', 'ruler' and 'columns'.  You need to
		check 'cmdheight' for whether there are full-width lines
		available above the last line.

					*v:errmsg* *errmsg-variable*
v:errmsg
		Last given error message.
		Modifiable (can be set).
		Example: >vim
		  let v:errmsg = ""
		  silent! next
		  if v:errmsg != ""
		    " ... handle error
<

			*v:errors* *errors-variable* *assert-return*
v:errors
		Errors found by assert functions, such as |assert_true()|.
		This is a list of strings.
		The assert functions append an item when an assert fails.
		The return value indicates this: a one is returned if an item
		was added to v:errors, otherwise zero is returned.
		To remove old results make it empty: >vim
		  let v:errors = []
<
		If v:errors is set to anything but a list it is made an empty
		list by the assert function.

					*v:event* *event-variable*
v:event
		Dictionary of event data for the current |autocommand|.  Valid
		only during the event lifetime; storing or passing v:event is
		invalid!  Copy it instead: >vim
		  au TextYankPost * let g:foo = deepcopy(v:event)
<
		Keys vary by event; see the documentation for the specific
		event, e.g. |DirChanged| or |TextYankPost|.
		  KEY              DESCRIPTION ~
		  abort            Whether the event triggered during
		                   an aborting condition (e.g. |c_Esc| or
		                   |c_CTRL-C| for |CmdlineLeave|).
		  chan             |channel-id|
		  changed_window   Is |v:true| if the event fired while
		                   changing window  (or tab) on |DirChanged|.
		  cmdlevel         Level of cmdline.
		  cmdtype          Type of cmdline, |cmdline-char|.
		  col              Column count of popup menu on |CompleteChanged|,
		                   relative to screen.
		  complete_type    See |complete_info_mode|
		  complete_word    The selected word, or empty if completion
		                   was abandoned/discarded.
		  completed_item   Current selected item on |CompleteChanged|,
		                   or `{}` if no item selected.
		  cwd              Current working directory.
		  height           Height of popup menu on |CompleteChanged|
		  inclusive        Motion is |inclusive|, else exclusive.
		  info             Dict of arbitrary event data.
		  operator         Current |operator|.  Also set for Ex
		                   commands (unlike |v:operator|). For
		                   example if |TextYankPost| is triggered
		                   by the |:yank| Ex command then
		                   `v:event.operator` is "y".
		  reason           |CompleteDone| reason.
		  regcontents      Text stored in the register as a
		                   |readfile()|-style list of lines.
		  regname          Requested register (e.g "x" for "xyy), or
		                   empty string for an unnamed operation.
		  regtype