#compdef emulate

_arguments -s -S -A '-*' : \
  '(2 3)-l[list options to be set or unset]' \
  '(2 3)-L[set local_options and local_traps as well]' \
  '-R[reset all options instead of only those needed for script portability]' \
  '1:shell to emulate:(zsh sh ksh csh)' \
  '(-l -L)2:specify optional command:(-c)' \
  '(-l -L)3: :_cmdstring'