bool.subr

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shtk_import cli


shtk_bool_check() {
    local value="${1}"; shift

    case "${value}" in
        [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|1)
            return 0
            ;;
        [Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|0)
            return 1
            ;;
        *)
            [ "${#}" -ne 0 ] || set -- "Invalid boolean value '${value}'"
            shtk_cli_error "${@}"
            ;;
    esac
}