complex.  This may already happen with the pattern
	"\(.\)*" on a very long line.  ".*" works much better.
	Might also happen on redraw, when syntax rules try to match a complex
	text structure.
	Vim may run out of memory before hitting the 'maxmempattern' limit, in
	which case you get an "Out of memory" error instead.

						*'menuitems'* *'mis'*
'menuitems' 'mis'	number	(default 25)
			global
	Maximum number of items to use in a menu.  Used for menus that are
	generated from a list of items, e.g., the Buffers menu.  Changing this
	option has no direct effect, the menu must be refreshed first.

						*'messagesopt'* *'mopt'*
'messagesopt' 'mopt'	string	(default "hit-enter,history:500")
			global
	Option settings for outputting messages.  It can consist of the
	following items.  Items must be separated by a comma.

	hit-enter	Use a |hit-enter| prompt when the message is longer than
			'cmdheight' size.

	wait:{n}	Instead of using a |hit-enter| prompt, simply wait for
			{n} milliseconds so that the user has a chance to read
			the message.  The maximum value of {n} is 10000.  Use
			0 to disable the wait (but then the user may miss an
			important message).
			This item is ignored when "hit-enter" is present, but
			required when "hit-enter" is not present.

	history:{n}	Determines how many entries are remembered in the
			|:messages| history.  The maximum value is 10000.
			Setting it to zero clears the message history.
			This item must always be present.

						*'mkspellmem'* *'msm'*
'mkspellmem' 'msm'	string	(default "460000,2000,500")
			global
	Parameters for |:mkspell|.  This tunes when to start compressing the
	word tree.  Compression can be slow when there are many words, but
	it's needed to avoid running out of memory.  The amount of memory used
	per word depends very much on how similar the words are, that's why
	this tuning is complicated.

	There are three numbers, separated by commas: >
		{start},{inc},{added}
<
	For most languages the uncompressed word tree fits in memory.  {start}
	gives the amount of memory in Kbyte that can be used before any
	compression is done.  It should be a bit smaller than the amount of
	memory that is available to Vim.

	When going over the {start} limit the {inc} number specifies the
	amount of memory in Kbyte that can be allocated before another
	compression is done.  A low number means compression is done after
	less words are added, which is slow.  A high number means more memory
	will be allocated.

	After doing compression, {added} times 1024 words can be added before
	the {inc} limit is ignored and compression is done when any extra
	amount of memory is needed.  A low number means there is a smaller
	chance of hitting the {inc} limit, less memory is used but it's
	slower.

	The languages for which these numbers are important are Italian and
	Hungarian.  The default works for when you have about 512 Mbyte.  If
	you have 1 Gbyte you could use: >vim
		set mkspellmem=900000,3000,800
<	If you have less than 512 Mbyte |:mkspell| may fail for some
	languages, no matter what you set 'mkspellmem' to.

	This option cannot be set from a |modeline| or in the |sandbox|, for
	security reasons.

				*'modeline'* *'ml'* *'nomodeline'* *'noml'*
'modeline' 'ml'		boolean	(default on (off for root))
			local to buffer
	If 'modeline' is on 'modelines' gives the number of lines that is
	checked for set commands.  If 'modeline' is off or 'modelines' is zero
	no lines are checked.  See |modeline|.

			*'modelineexpr'* *'mle'* *'nomodelineexpr'* *'nomle'*
'modelineexpr' 'mle'	boolean	(default off)
			global
	When on allow some options that are an expression to be set in the
	modeline.  Check the option for whether it is affected by
	'modelineexpr'.  Also see |modeline|.
	This option cannot be set from a |modeline| or in the |sandbox|, for
	security reasons.

						*'modelines'* *'mls'*
'modelines' 'mls'	number	(default 5)
			global
	If 'modeline' is on 'modelines' gives the number of lines that is
	checked