For an example see |match-parens|.
				Note: Cannot be skipped with |:noautocmd|.
				Careful: This is triggered very often, don't
				do anything that the user does not expect or
				that is slow.
							*CursorMovedC*
CursorMovedC			After the cursor was moved in the command
				line.  Be careful not to mess up the command
				line, it may cause Vim to lock up.
				<afile> expands to the |cmdline-char|.
							*CursorMovedI*
CursorMovedI			After the cursor was moved in Insert mode.
				Not triggered when the popup menu is visible.
				Otherwise the same as CursorMoved.
							*DiffUpdated*
DiffUpdated			After diffs have been updated.  Depending on
				what kind of diff is being used (internal or
				external) this can be triggered on every
				change or when doing |:diffupdate|.
							*DirChanged*
DirChanged			After the |current-directory| was changed.
				The pattern can be:
					"window"  to trigger on `:lcd`
					"tabpage" to trigger on `:tcd`
					"global"  to trigger on `:cd`
					"auto"    to trigger on 'autochdir'.
				Sets these |v:event| keys:
				    cwd:            current working directory
				    scope:          "global", "tabpage", "window"
				    changed_window: v:true if we fired the event
				                    switching window (or tab)
				<afile> is set to the new directory name.
				Non-recursive (event cannot trigger itself).
							*DirChangedPre*
DirChangedPre			When the |current-directory| is going to be
				changed, as with |DirChanged|.
				The pattern is like with |DirChanged|.
				Sets these |v:event| keys:
				    directory:      new working directory
				    scope:          "global", "tabpage", "window"
				    changed_window: v:true if we fired the event
				                    switching window (or tab)
				<afile> is set to the new directory name.
				Non-recursive (event cannot trigger itself).
							*ExitPre*
ExitPre				When using `:quit`, `:wq` in a way it makes
				Vim exit, or using `:qall`, just after
				|QuitPre|.  Can be used to close any
				non-essential window.  Exiting may still be
				cancelled if there is a modified buffer that
				isn't automatically saved, use |VimLeavePre|
				for really exiting.
				See also |QuitPre|, |WinClosed|.
							*FileAppendCmd*
FileAppendCmd			Before appending to a file.  Should do the
				appending to the file.  Use the '[ and ']
				marks for the range of lines. |Cmd-event|
							*FileAppendPost*
FileAppendPost			After appending to a file.
							*FileAppendPre*
FileAppendPre			Before appending to a file.  Use the '[ and ']
				marks for the range of lines.
							*FileChangedRO*
FileChangedRO			Before making the first change to a read-only
				file.  Can be used to checkout the file from
				a source control system.  Not triggered when
				the change was caused by an autocommand.
				Triggered when making the first change in
				a buffer or the first change after 'readonly'
				was set, just before the change is applied to
				the text.
				WARNING: If the autocommand moves the cursor
				the effect of the change is undefined.
							*E788*
				Cannot switch buffers.  You can reload the
				buffer but not edit another one.
							*E881*
				If the number of lines changes saving for undo
				may fail and the change will be aborted.
							*FileChangedShell*
FileChangedShell		When Vim notices that the modification time of
				a file has changed since editing started.
				Also when the file attributes of the file
				change or when the size of the file changes.
				|timestamp|
				Triggered for each changed file, after:
				- executing a shell command
				- |:checktime|
				- |FocusGained|

				Not used when 'autoread' is set and the buffer
				was not changed.  If a FileChangedShell
				autocommand exists the warning message and
				prompt is not given.
				|v:fcs_reason| indicates what happened. Set
				|v:fcs_choice| to control what happens next.
				NOTE: Current buffer "%" is not the target
				buffer "<afile>" and "<abuf>". |<buffer=abuf>|