27 struct arg arg_init(char **argv) {  in arg_init()
28   struct arg a;  in arg_init()
38 int arg_match(struct arg *arg_, const struct arg_def *def, char **argv) {  in arg_match()
39   struct arg arg;  in arg_match()  local
43   arg = arg_init(argv);  in arg_match()
45   if (def->short_name && strlen(arg.argv[0]) == strlen(def->short_name) + 1 &&  in arg_match()
46       !strcmp(arg.argv[0] + 1, def->short_name)) {  in arg_match()
47     arg.name = arg.argv[0] + 1;  in arg_match()
48     arg.val = def->has_val ? arg.argv[1] : NULL;  in arg_match()
49     arg.argv_step = def->has_val ? 2 : 1;  in arg_match()
53     if (strlen(arg.argv[0]) >= name_len + 2 && arg.argv[0][1] == '-' &&  in arg_match()
54         !strncmp(arg.argv[0] + 2, def->long_name, name_len) &&  in arg_match()
55         (arg.argv[0][name_len + 2] == '=' ||  in arg_match()
56          arg.argv[0][name_len + 2] == '\0')) {  in arg_match()
57       arg.name = arg.argv[0] + 2;  in arg_match()
58       arg.val = arg.name[name_len] == '=' ? arg.name + name_len + 1 : NULL;  in arg_match()
59       arg.argv_step = 1;  in arg_match()
63   if (arg.name && !arg.val && def->has_val)  in arg_match()
64     die("Error: option %s requires argument.\n", arg.name);  in arg_match()
66   if (arg.name && arg.val && !def->has_val)  in arg_match()
67     die("Error: option %s requires no argument.\n", arg.name);  in arg_match()
69   if (arg.name && (arg.val || !def->has_val)) {  in arg_match()
70     arg.def = def;  in arg_match()
71     *arg_ = arg;  in arg_match()
78 const char *arg_next(struct arg *arg) {  in arg_next()  argument
79   if (arg->argv[0]) arg->argv += arg->argv_step;  in arg_next()
81   return *arg->argv;  in arg_next()
124 unsigned int arg_parse_uint(const struct arg *arg) {  in arg_parse_uint()  argument
128   rawval = (uint32_t)strtoul(arg->val, &endptr, 10);  in arg_parse_uint()
130   if (arg->val[0] != '\0' && endptr[0] == '\0') {  in arg_parse_uint()
133     die("Option %s: Value %ld out of range for unsigned int\n", arg->name,  in arg_parse_uint()
137   die("Option %s: Invalid character '%c'\n", arg->name, *endptr);  in arg_parse_uint()
141 int arg_parse_int(const struct arg *arg) {  in arg_parse_int()  argument
145   rawval = (int32_t)strtol(arg->val, &endptr, 10);  in arg_parse_int()
147   if (arg->val[0] != '\0' && endptr[0] == '\0') {  in arg_parse_int()
150     die("Option %s: Value %ld out of range for signed int\n", arg->name,  in arg_parse_int()
154   die("Option %s: Invalid character '%c'\n", arg->name, *endptr);  in arg_parse_int()
162 struct vpx_rational arg_parse_rational(const struct arg *arg) {  in arg_parse_rational()  argument
168   rawval = strtol(arg->val, &endptr, 10);  in arg_parse_rational()
170   if (arg->val[0] != '\0' && endptr[0] == '/') {  in arg_parse_rational()
174       die("Option %s: Value %ld out of range for signed int\n", arg->name,  in arg_parse_rational()
177     die("Option %s: Expected / at '%c'\n", arg->name, *endptr);  in arg_parse_rational()
182   if (arg->val[0] != '\0' && endptr[0] == '\0') {  in arg_parse_rational()
186       die("Option %s: Value %ld out of range for signed int\n", arg->name,  in arg_parse_rational()
189     die("Option %s: Invalid character '%c'\n", arg->name, *endptr);  in arg_parse_rational()
194 int arg_parse_enum(const struct arg *arg) {  in arg_parse_enum()  argument
200   rawval = strtol(arg->val, &endptr, 10);  in arg_parse_enum()
201   if (arg->val[0] != '\0' && endptr[0] == '\0') {  in arg_parse_enum()
203     for (listptr = arg->def->enums; listptr->name; listptr++)  in arg_parse_enum()
208   for (listptr = arg->def->enums; listptr->name; listptr++)  in arg_parse_enum()
209     if (!strcmp(arg->val, listptr->name)) return listptr->val;  in arg_parse_enum()
211   die("Option %s: Invalid value '%s'\n", arg->name, arg->val);  in arg_parse_enum()
215 int arg_parse_enum_or_int(const struct arg *arg) {  in arg_parse_enum_or_int()  argument
216   if (arg->def->enums) return arg_parse_enum(arg);  in arg_parse_enum_or_int()
217   return arg_parse_int(arg);  in arg_parse_enum_or_int()