10 static void cmdopt_shift(cmdopt_t *h) {  in cmdopt_shift()  argument
14   tmp = h->argv[h->optind];  in cmdopt_shift()
15   for (i = h->optind; i < h->argc - 1; i++) {  in cmdopt_shift()
16     h->argv[i] = h->argv[i + 1];  in cmdopt_shift()
18   h->argv[i] = tmp;  in cmdopt_shift()
20   h->nextchar = NULL;  in cmdopt_shift()
21   h->optnum--;  in cmdopt_shift()
25 static void cmdopt_next(cmdopt_t *h) {  in cmdopt_next()  argument
26   h->optind++;  in cmdopt_next()
27   h->nextchar = NULL;  in cmdopt_next()
31 static int cmdopt_check(cmdopt_t *h) {  in cmdopt_check()  argument
33   const char *arg = h->argv[h->optind];  in cmdopt_check()
48 static void cmdopt_getopt(cmdopt_t *h) {  in cmdopt_getopt()  argument
50   if (*h->nextchar == '\0') {  in cmdopt_getopt()
51     cmdopt_next(h);  in cmdopt_getopt()
52     h->nextchar = h->argv[h->optind];  in cmdopt_getopt()
56   if (h->optind < h->optnum) {  in cmdopt_getopt()
57     h->optarg = h->nextchar;  in cmdopt_getopt()
58     cmdopt_next(h);  in cmdopt_getopt()
60     h->optarg = NULL;  in cmdopt_getopt()
65 static int cmdopt_search(cmdopt_t *h) {  in cmdopt_search()  argument
69   h->optopt = *h->nextchar++;  in cmdopt_search()
71   for (ptr = h->optstring; *ptr != '\0'; ptr++) {  in cmdopt_search()
72     if (*ptr == h->optopt) {  in cmdopt_search()
75         cmdopt_getopt(h);  in cmdopt_search()
78         if (h->optarg == NULL && ptr[2] != ':') {  in cmdopt_search()
82       return h->optopt;  in cmdopt_search()
86   if (h->optopt == '-') {  in cmdopt_search()
87     cmdopt_next(h);  in cmdopt_search()
88     while (h->optind < h->optnum) {  in cmdopt_search()
89       cmdopt_shift(h);  in cmdopt_search()
120 static int cmdopt_match(cmdopt_t *h) {  in cmdopt_match()  argument
125   if (h->longopts == NULL) {  in cmdopt_match()
129   for (i = 0; h->longopts[i].name != NULL; i++) {  in cmdopt_match()
130     len = cmdopt_match_len(h->longopts[i].name, h->nextchar);  in cmdopt_match()
133       h->nextchar -= len;  in cmdopt_match()
146   h->nextchar += max;  in cmdopt_match()
151 static void cmdopt_getopt_long(cmdopt_t *h) {  in cmdopt_getopt_long()  argument
152   if (*h->nextchar == '=') {  in cmdopt_getopt_long()
153     h->optarg = h->nextchar + 1;  in cmdopt_getopt_long()
154     cmdopt_next(h);  in cmdopt_getopt_long()
156     cmdopt_next(h);  in cmdopt_getopt_long()
159     if (h->optind < h->optnum) {  in cmdopt_getopt_long()
160       h->optarg = h->argv[h->optind];  in cmdopt_getopt_long()
161       cmdopt_next(h);  in cmdopt_getopt_long()
163       h->optarg = NULL;  in cmdopt_getopt_long()
169 static int cmdopt_search_long(cmdopt_t *h) {  in cmdopt_search_long()  argument
173   h->optlong = h->argv[h->optind];  in cmdopt_search_long()
176   h->longindex = cmdopt_match(h);  in cmdopt_search_long()
177   if (h->longindex  < 0) {  in cmdopt_search_long()
178     cmdopt_next(h);  in cmdopt_search_long()
183   option = h->longopts + h->longindex;  in cmdopt_search_long()
185     cmdopt_getopt_long(h);  in cmdopt_search_long()
188     if (h->optarg == NULL) {  in cmdopt_search_long()
191   } else if (*h->nextchar == '=') {  in cmdopt_search_long()
193     cmdopt_getopt_long(h);  in cmdopt_search_long()
207 static int cmdopt_main(cmdopt_t *h) {  in cmdopt_main()  argument
211   h->optopt = 0;  in cmdopt_main()
212   h->optlong = NULL;  in cmdopt_main()
213   h->optarg = NULL;  in cmdopt_main()
214   h->longindex = 0;  in cmdopt_main()
216   while (h->optind < h->optnum) {  in cmdopt_main()
217     if (h->nextchar == NULL) {  in cmdopt_main()
219       type = cmdopt_check(h);  in cmdopt_main()
221         cmdopt_shift(h);  in cmdopt_main()
223         h->nextchar = h->argv[h->optind] + type;  in cmdopt_main()
225           return cmdopt_search_long(h);  in cmdopt_main()
229       if (*h->nextchar == '\0') {  in cmdopt_main()
230         cmdopt_next(h);  in cmdopt_main()
234       return cmdopt_search(h);  in cmdopt_main()
242 void cmdopt_init(cmdopt_t *h, int argc, char **argv,  in cmdopt_init()  argument
246   h->argc = argc;  in cmdopt_init()
247   h->argv = argv;  in cmdopt_init()
248   h->optnum = h->argc;  in cmdopt_init()
250   h->longopts = longopts;  in cmdopt_init()
251   h->optstring = (optstring != NULL) ? optstring : empty_optstring;  in cmdopt_init()
253   h->optind = 1;  in cmdopt_init()
254   h->nextchar = NULL;  in cmdopt_init()
255   h->optarg = NULL;  in cmdopt_init()
256   h->optopt = 0;  in cmdopt_init()
257   h->optlong = NULL;  in cmdopt_init()
258   h->opterr = 1;  in cmdopt_init()
259   h->longindex = 0;  in cmdopt_init()
263 int cmdopt_get(cmdopt_t *h) {  in cmdopt_get()  argument
264   int value = cmdopt_main(h);  in cmdopt_get()
267   if (h->opterr) {  in cmdopt_get()
270       if (h->optlong == NULL) {  in cmdopt_get()
271         fprintf(stderr, "option requires an argument -- %c\n", h->optopt);  in cmdopt_get()
274             h->longopts[h->longindex].name);  in cmdopt_get()
278       if (h->optlong == NULL) {  in cmdopt_get()
279         fprintf(stderr, "invalid option -- %c\n", h->optopt);  in cmdopt_get()
281         fprintf(stderr, "unrecognized option `%s'\n", h->optlong);  in cmdopt_get()
283     } else if ((value != -1) && (h->opterr == 2)) {  in cmdopt_get()
285       if (h->optlong == NULL) {  in cmdopt_get()
286         fprintf(stderr, "option with `%s' -- %c\n", h->optarg, h->optopt);  in cmdopt_get()
289             h->longopts[h->longindex].name, h->optarg);  in cmdopt_get()