syntax clear
:syntax keyword
, :syntax match
and :syntax region
are: conceal
, cchar
, contained
, containedin
, nextgroup
, transparent
, skipwhite
, skipnl
and skipempty
. :syntax match
and :syntax region
can additionially specify contains
, fold
, display
, extend
. :syntax region
can additionially specify oneline
and concealends
. :help syn-arguments
syntax keyword {group-name} [{options}] {keyword} .. [{options}]
:syntax spell toplevel
:syntax keyword
FEAT_CONCEAL
.