OPERAND_MULTIPLE
if (subcommand->operand & OPERAND_MULTIPLE) {
#define OPERAND_MANDATORY_MULTIPLE (OPERAND_MANDATORY | OPERAND_MULTIPLE)
#define OPERAND_OPTIONAL_MULTIPLE (OPERAND_OPTIONAL | OPERAND_MULTIPLE)
if (subcommand->operand & OPERAND_MULTIPLE) {
#define OPERAND_MANDATORY_MULTIPLE (OPERAND_MANDATORY | OPERAND_MULTIPLE)
#define OPERAND_OPTIONAL_MULTIPLE (OPERAND_OPTIONAL | OPERAND_MULTIPLE)