_vcfsetop

#compdef vcfsetop

local curcontext="$curcontext" state line
typeset -A opt_args
local subcmds

subcmds=(filter list)

if [[ $service == "vcfsetop" ]]; then
    _arguments -C -A  "-*" \
    '--help[show help for this command and exit]' \
    '*::command:->subcmd' && return 0

    if (( CURRENT == 1 )); then
        _wanted commands expl 'vcfsetop command' compadd -a subcmds
        return
    fi
    service="$words[1]"
    curcontext="${curcontext%:*}=$service:"
fi

case $service in
    (filter)
        _arguments \
	    '--exclude[Drop variants from this index]' \
	    '--include[Keep variants from this index]' \
	    '--require[Keep variants from this index only]' \
	    '::vcf:_files'
    ;;

    (list)
    ;;

    (*)
        _message "unknown vcfsetop command completion: $service"
    ;;
esac