28 struct arg arg_init(char **argv)  in arg_init()
30     struct arg a;  in arg_init()
40 int arg_match(struct arg *arg_, const struct arg_def *def, char **argv)  in arg_match()
42     struct arg arg;  in arg_match()  local
47     arg = arg_init(argv);  in arg_match()
50         && strlen(arg.argv[0]) == strlen(def->short_name) + 1  in arg_match()
51         && !strcmp(arg.argv[0] + 1, def->short_name))  in arg_match()
54         arg.name = arg.argv[0] + 1;  in arg_match()
55         arg.val = def->has_val ? arg.argv[1] : NULL;  in arg_match()
56         arg.argv_step = def->has_val ? 2 : 1;  in arg_match()
62         if (strlen(arg.argv[0]) >= name_len + 2  in arg_match()
63             && arg.argv[0][1] == '-'  in arg_match()
64             && !strncmp(arg.argv[0] + 2, def->long_name, name_len)  in arg_match()
65             && (arg.argv[0][name_len+2] == '='  in arg_match()
66                 || arg.argv[0][name_len+2] == '\0'))  in arg_match()
69             arg.name = arg.argv[0] + 2;  in arg_match()
70             arg.val = arg.name[name_len] == '=' ? arg.name + name_len + 1 : NULL;  in arg_match()
71             arg.argv_step = 1;  in arg_match()
75     if (arg.name && !arg.val && def->has_val)  in arg_match()
76         die("Error: option %s requires argument.\n", arg.name);  in arg_match()
78     if (arg.name && arg.val && !def->has_val)  in arg_match()
79         die("Error: option %s requires no argument.\n", arg.name);  in arg_match()
81     if (arg.name  in arg_match()
82         && (arg.val || !def->has_val))  in arg_match()
84         arg.def = def;  in arg_match()
85         *arg_ = arg;  in arg_match()
93 const char *arg_next(struct arg *arg)  in arg_next()  argument
95     if (arg->argv[0])  in arg_next()
96         arg->argv += arg->argv_step;  in arg_next()
98     return *arg->argv;  in arg_next()
153 unsigned int arg_parse_uint(const struct arg *arg)  in arg_parse_uint()  argument
158     rawval = strtol(arg->val, &endptr, 10);  in arg_parse_uint()
160     if (arg->val[0] != '\0' && endptr[0] == '\0')  in arg_parse_uint()
166             arg->name, rawval);  in arg_parse_uint()
169     die("Option %s: Invalid character '%c'\n", arg->name, *endptr);  in arg_parse_uint()
174 int arg_parse_int(const struct arg *arg)  in arg_parse_int()  argument
179     rawval = strtol(arg->val, &endptr, 10);  in arg_parse_int()
181     if (arg->val[0] != '\0' && endptr[0] == '\0')  in arg_parse_int()
187             arg->name, rawval);  in arg_parse_int()
190     die("Option %s: Invalid character '%c'\n", arg->name, *endptr);  in arg_parse_int()
200 struct vpx_rational arg_parse_rational(const struct arg *arg)  in arg_parse_rational()  argument
207     rawval = strtol(arg->val, &endptr, 10);  in arg_parse_rational()
209     if (arg->val[0] != '\0' && endptr[0] == '/')  in arg_parse_rational()
214                      arg->name, rawval);  in arg_parse_rational()
216     else die("Option %s: Expected / at '%c'\n", arg->name, *endptr);  in arg_parse_rational()
221     if (arg->val[0] != '\0' && endptr[0] == '\0')  in arg_parse_rational()
226                      arg->name, rawval);  in arg_parse_rational()
228     else die("Option %s: Invalid character '%c'\n", arg->name, *endptr);  in arg_parse_rational()
234 int arg_parse_enum(const struct arg *arg)  in arg_parse_enum()  argument
241     rawval = strtol(arg->val, &endptr, 10);  in arg_parse_enum()
242     if (arg->val[0] != '\0' && endptr[0] == '\0')  in arg_parse_enum()
245         for(listptr = arg->def->enums; listptr->name; listptr++)  in arg_parse_enum()
251     for(listptr = arg->def->enums; listptr->name; listptr++)  in arg_parse_enum()
252         if(!strcmp(arg->val, listptr->name))  in arg_parse_enum()
255     die("Option %s: Invalid value '%s'\n", arg->name, arg->val);  in arg_parse_enum()
260 int arg_parse_enum_or_int(const struct arg *arg)  in arg_parse_enum_or_int()  argument
262     if(arg->def->enums)  in arg_parse_enum_or_int()
263         return arg_parse_enum(arg);  in arg_parse_enum_or_int()
264     return arg_parse_int(arg);  in arg_parse_enum_or_int()