//-----------------------------------------------------------------------------
int32_t Args::getopt()
{
// Always reset optarg
m_optarg = NULL;
// End of arguments
if (m_optind >= m_scope)
{
return -1;
}
switch (option_type(m_argv[m_optind]))
{
case AOT_SHORT:
{
return short_option(m_argv[m_optind]);
}
case AOT_LONG:
{
return long_option(m_argv[m_optind]);
}
case AOT_NOT_OPTION:
{
not_option();
return getopt();
}
default:
{
return '?';
}
}
}
int get_option(char **argvp[], const struct option *options, char **arg)
{
char **argv = *argvp;
const char *opt = *argv;
int i;
*arg = NULL;
if (opt == NULL || opt[0] != '-' || opt[1] == 0)
return -1;
if (opt[1] == '-') {
if (opt[2] == 0) {
/* '--' => no more options */
*argvp = argv + 1;
return -1;
}
i = long_option(opt + 2, options);
} else if (opt[2]) {
return -1;
} else {
i = short_option(opt[1], options);
}
argv++;
if (options[i].has_arg) {
if (*argv == NULL)
die("option `%s' requires an argument\n", opt);
*arg = *argv++;
}
*argvp = argv;
return i;
}
int
parse_options(const struct weston_option *options,
int count, int *argc, char *argv[])
{
int i, j;
for (i = 1, j = 1; i < *argc; i++) {
if (argv[i][0] == '-') {
if (argv[i][1] == '-') {
/* Long option, e.g. --foo or --foo=bar */
if (long_option(options, count, argv[i]))
continue;
} else {
/* Short option, e.g -f or -f42 */
if (short_option(options, count, argv[i]))
continue;
/* ...also handle -f 42 */
if (i+1 < *argc &&
short_option_with_arg(options, count, argv[i], argv[i+1])) {
i++;
continue;
}
}
}
argv[j++] = argv[i];
}
argv[j] = NULL;
*argc = j;
return j;
}