only suffixes with the CIRCUMFIX flag
can be added, and the other way around.
An alternative is to only specify the suffix, and give that suffix two flags:
the required prefix and the NEEDAFFIX flag.  |spell-NEEDAFFIX|


PFXPOSTPONE						*spell-PFXPOSTPONE*

When an affix file has very many prefixes that apply to many words it's not
possible to build the whole word list in memory.  This applies to Hebrew (a
list with all words is over a Gbyte).  In that case applying prefixes must be
postponed.  This makes spell checking slower.  It is indicated by this keyword
in the .aff file:

	PFXPOSTPONE ~

Only prefixes without a chop string and without flags can be postponed.
Prefixes with a chop string or with flags will still be included in the word
list.  An exception if the chop string is one character and equal to the last
character of the added string, but in lower case.  Thus when the chop string
is used to allow the following word to start with an upper case letter.


WORDS WITH A SLASH					*spell-SLASH*

The slash is used in the .dic file to separate the basic word from the affix
letters and other flags.  Unfortunately, this means you cannot use a slash in
a word.  Thus "TCP/IP" is not a word but "TCP" with the flags "IP".  To include
a slash in the word put a backslash before it: "TCP\/IP".  In the rare case
you want to use a backslash inside a word you need to use two backslashes.
Any other use of the backslash is reserved for future expansion.


KEEP-CASE WORDS						*spell-KEEPCASE*

In the affix file a KEEPCASE line can be used to define the affix name used
for keep-case words.  Example:

	KEEPCASE = ~

This flag is not supported by Myspell.  It has the meaning that case matters.
This can be used if the word does not have the first letter in upper case at
the start of a sentence.  Example:

    word list	    matches		    does not match ~
    's morgens/=    's morgens		    'S morgens 's Morgens 'S MORGENS
    's Morgens	    's Morgens 'S MORGENS   'S morgens 's morgens

The flag can also be used to avoid that the word matches when it is in all
upper-case letters.


RARE WORDS						*spell-RARE*

In the affix file a RARE line can be used to define the affix name used for
rare words.  Example:

	RARE ? ~

Rare words are highlighted differently from bad words.  This is to be used for
words that are correct for the language, but are hardly ever used and could be
a typing mistake anyway.

This flag can also be used on an affix, so that a basic word is not rare but
the basic word plus affix is rare |spell-affix-flags|.  However, if the word
also appears as a good word in another way (e.g., in another region) it won't
be marked as rare.


BAD WORDS						*spell-BAD*

In the affix file a BAD line can be used to define the affix name used for
bad words.  Example:

	BAD ! ~

This can be used to exclude words that would otherwise be good.  For example
"the the" in the .dic file:

	the the/! ~

Once a word has been marked as bad it won't be undone by encountering the same
word as good.

The flag also applies to the word with affixes, thus this can be used to mark
a whole bunch of related words as bad.

							*spell-FORBIDDENWORD*
FORBIDDENWORD can be used just like BAD.  For compatibility with Hunspell.

							*spell-NEEDAFFIX*
The NEEDAFFIX flag is used to require that a word is used with an affix.  The
word itself is not a good word (unless there is an empty affix).  Example:

	NEEDAFFIX + ~


COMPOUND WORDS						*spell-compound*

A compound word is a longer word made by concatenating words that appear in
the .dic file.  To specify which words may be concatenated a character is
used.  This character is put in the list of affixes after the word.  We will
call this character a flag here.  Obviously these flags must be different from
any affix IDs used.

							*spell-COMPOUNDFLAG*
The Myspell compatible method uses one flag, specified with COMPOUNDFLAG.  All
words with this flag combine in any order.  This means there is no control
over