1 /*
2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 
12 #ifndef ARGS_H_
13 #define ARGS_H_
14 #include <stdio.h>
15 
16 #ifdef __cplusplus
17 extern "C" {
18 #endif
19 
20 struct arg {
21   char                 **argv;
22   const char            *name;
23   const char            *val;
24   unsigned int           argv_step;
25   const struct arg_def  *def;
26 };
27 
28 struct arg_enum_list {
29   const char *name;
30   int         val;
31 };
32 #define ARG_ENUM_LIST_END {0}
33 
34 typedef struct arg_def {
35   const char *short_name;
36   const char *long_name;
37   int         has_val;
38   const char *desc;
39   const struct arg_enum_list *enums;
40 } arg_def_t;
41 #define ARG_DEF(s,l,v,d) {s,l,v,d, NULL}
42 #define ARG_DEF_ENUM(s,l,v,d,e) {s,l,v,d,e}
43 #define ARG_DEF_LIST_END {0}
44 
45 struct arg arg_init(char **argv);
46 int arg_match(struct arg *arg_, const struct arg_def *def, char **argv);
47 const char *arg_next(struct arg *arg);
48 void arg_show_usage(FILE *fp, const struct arg_def *const *defs);
49 char **argv_dup(int argc, const char **argv);
50 
51 unsigned int arg_parse_uint(const struct arg *arg);
52 int arg_parse_int(const struct arg *arg);
53 struct vpx_rational arg_parse_rational(const struct arg *arg);
54 int arg_parse_enum_or_int(const struct arg *arg);
55 #ifdef __cplusplus
56 }  // extern "C"
57 #endif
58 
59 #endif  // ARGS_H_
60