Function is_alias

parse-options.c:471–490

}

static int is_alias(struct parse_opt_ctx_t *ctx,
		    const struct option *one_opt,
		    const struct option *another_opt)
{
	const char **group;

	if (!ctx->alias_groups)
		return 0;

	if (!one_opt->long_name || !another_opt->long_name)
		return 0;

	for (group = ctx->alias_groups; *group; group += 3) {
		/* it and other are from the same family? */
		if (has_string(one_opt->long_name, group) &&
		    has_string(another_opt->long_name, group))
			return 1;
	}
	return 0;
}

struct parsed_option {
	const struct option *option;