*'arab'* *'noarabic'* *'noarab'*
'arabic' 'arab'		boolean	(default off)
			local to window
	This option can be set to start editing Arabic text.
	Setting this option will:
	- Set the 'rightleft' option, unless 'termbidi' is set.
	- Set the 'arabicshape' option, unless 'termbidi' is set.
	- Set the 'keymap' option to "arabic"; in Insert mode CTRL-^ toggles
	  between typing English and Arabic key mapping.
	- Set the 'delcombine' option

	Resetting this option will:
	- Reset the 'rightleft' option.
	- Disable the use of 'keymap' (without changing its value).
	Note that 'arabicshape' and 'delcombine' are not reset (it is a global
	option).
	Also see |arabic.txt|.

		*'arabicshape'* *'arshape'* *'noarabicshape'* *'noarshape'*
'arabicshape' 'arshape'	boolean	(default on)
			global
	When on and 'termbidi' is off, the required visual character
	corrections that need to take place for displaying the Arabic language
	take effect.  Shaping, in essence, gets enabled; the term is a broad
	one which encompasses:
	  a) the changing/morphing of characters based on their location
	     within a word (initial, medial, final and stand-alone).
	  b) the enabling of the ability to compose characters
	  c) the enabling of the required combining of some characters
	When disabled the display shows each character's true stand-alone
	form.
	Arabic is a complex language which requires other settings, for
	further details see |arabic.txt|.

			*'autochdir'* *'acd'* *'noautochdir'* *'noacd'*
'autochdir' 'acd'	boolean	(default off)
			global
	When on, Vim will change the current working directory whenever you
	open a file, switch buffers, delete a buffer or open/close a window.
	It will change to the directory containing the file which was opened
	or selected.  When a buffer has no name it also has no directory, thus
	the current directory won't change when navigating to it.
	Note: When this option is on some plugins may not work.

			*'autoindent'* *'ai'* *'noautoindent'* *'noai'*
'autoindent' 'ai'	boolean	(default on)
			local to buffer
	Copy indent from current line when starting a new line (typing <CR>
	in Insert mode or when using the "o" or "O" command).  If you do not
	type anything on the new line except <BS> or CTRL-D and then type
	<Esc>, CTRL-O or <CR>, the indent is deleted again.  Moving the cursor
	to another line has the same effect, unless the 'I' flag is included
	in 'cpoptions'.
	When autoindent is on, formatting (with the "gq" command or when you
	reach 'textwidth' in Insert mode) uses the indentation of the first
	line.
	When 'smartindent' or 'cindent' is on the indent is changed in
	a different way.

				*'autoread'* *'ar'* *'noautoread'* *'noar'*
'autoread' 'ar'		boolean	(default on)
			global or local to buffer |global-local|
	When a file has been detected to have been changed outside of Vim and
	it has not been changed inside of Vim, automatically read it again.
	When the file has been deleted this is not done, so you have the text
	from before it was deleted.  When it appears again then it is read.
	|timestamp|
	If this option has a local value, use this command to switch back to
	using the global value: >vim
		set autoread<
<

				*'autowrite'* *'aw'* *'noautowrite'* *'noaw'*
'autowrite' 'aw'	boolean	(default off)
			global
	Write the contents of the file, if it has been modified, on each
	`:next`, `:rewind`, `:last`, `:first`, `:previous`, `:stop`,
	`:suspend`, `:tag`, `:!`, `:make`, CTRL-] and CTRL-^ command; and when
	a `:buffer`, CTRL-O, CTRL-I, '{A-Z0-9}, or `{A-Z0-9} command takes one
	to another file.
	A buffer is not written if it becomes hidden, e.g. when 'bufhidden' is
	set to "hide" and `:next` is used.
	Note that for some commands the 'autowrite' option is not used, see
	'autowriteall' for that.
	Some buffers will not be written, specifically when 'buftype' is
	"nowrite", "nofile", "terminal" or "prompt".
	USE WITH CARE: If you make temporary changes to a buffer that you
	don't want to be saved this option may cause it