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
16extern "C" {
17#endif
18
19struct 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
27struct arg_enum_list {
28  const char *name;
29  int val;
30};
31#define ARG_ENUM_LIST_END \
32  { 0 }
33
34typedef 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
48struct arg arg_init(char **argv);
49int arg_match(struct arg *arg_, const struct arg_def *def, char **argv);
50const char *arg_next(struct arg *arg);
51void arg_show_usage(FILE *fp, const struct arg_def *const *defs);
52char **argv_dup(int argc, const char **argv);
53
54unsigned int arg_parse_uint(const struct arg *arg);
55int arg_parse_int(const struct arg *arg);
56struct vpx_rational arg_parse_rational(const struct arg *arg);
57int arg_parse_enum(const struct arg *arg);
58int arg_parse_enum_or_int(const struct arg *arg);
59#ifdef __cplusplus
60}  // extern "C"
61#endif
62
63#endif  // ARGS_H_
64