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#compdef getopt ggetopt

local -a args aopts

# @todo BusyBox getopt is borrowed straight from util-linux, so they're nearly
# identical, but not quite: BusyBox doesn't have -h and -V and often doesn't
# support long options. So possibly this could be more accurate
if _pick_variant busybox=BusyBox util-linux='(enhanced|util-linux)' unix --version; then
  args=(
    '(-a --alternative)'{-a,--alternative}'[allow long options with single -]'
    '(: -)'{-h,--help}'[display help information]'
    '*'{-l+,--longoptions=}'[specify long options]:long options'
    '(-n --name)'{-n+,--name=}'[specify program name]:program name'
    '(1 -o --options)'{-o+,--options=}'[specify short options]:short options'
    '(-q --quiet)'{-q,--quiet}'[suppress getopt(3) error messages]'
    '(-Q --quiet-output)'{-Q,--quiet-output}'[suppress normal output]'
    '(-s --shell)'{-s+,--shell=}'[specify shell quoting conventions]:shell:(bash csh tcsh sh)'
    '(: -)'{-T,--test}'[test for enhanced getopt]'
    '(-u --unquoted)'{-u,--unquoted}'[do not quote output]'
    '(: -)'{-V,--version}'[display version information]'
    '(-o --options)1: :_guard "^-*" "short options"'
    '*:argument'
  )
  [[ -n $POSIXLY_CORRECT ]] && aopts+=( -A '-*' )
else
  args=( '1:short options' '*:argument' )
fi

_arguments -s -S $aopts : $args