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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 #ifndef ARGS_H_
12 #define ARGS_H_
13 #include <stdio.h>
14 
15 #ifdef __cplusplus
16 extern "C" {
17 #endif
18 
19 struct arg {
20   char **argv;
21   const char *name;
22   const char *val;
23   unsigned int argv_step;
24   const struct arg_def *def;
25 };
26 
27 struct arg_enum_list {
28   const char *name;
29   int val;
30 };
31 #define ARG_ENUM_LIST_END \
32   { 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) \
42   { s, l, v, d, NULL }
43 #define ARG_DEF_ENUM(s, l, v, d, e) \
44   { s, l, v, d, e }
45 #define ARG_DEF_LIST_END \
46   { 0 }
47 
48 struct arg arg_init(char **argv);
49 int arg_match(struct arg *arg_, const struct arg_def *def, char **argv);
50 const char *arg_next(struct arg *arg);
51 void arg_show_usage(FILE *fp, const struct arg_def *const *defs);
52 char **argv_dup(int argc, const char **argv);
53 
54 unsigned int arg_parse_uint(const struct arg *arg);
55 int arg_parse_int(const struct arg *arg);
56 struct vpx_rational arg_parse_rational(const struct arg *arg);
57 int arg_parse_enum(const struct arg *arg);
58 int arg_parse_enum_or_int(const struct arg *arg);
59 #ifdef __cplusplus
60 }  // extern "C"
61 #endif
62 
63 #endif  // ARGS_H_
64