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
17extern "C" {
18#endif
19
20struct 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
28struct arg_enum_list {
29  const char *name;
30  int         val;
31};
32#define ARG_ENUM_LIST_END {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) {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
45struct arg arg_init(char **argv);
46int arg_match(struct arg *arg_, const struct arg_def *def, char **argv);
47const char *arg_next(struct arg *arg);
48void arg_show_usage(FILE *fp, const struct arg_def *const *defs);
49char **argv_dup(int argc, const char **argv);
50
51unsigned int arg_parse_uint(const struct arg *arg);
52int arg_parse_int(const struct arg *arg);
53struct vpx_rational arg_parse_rational(const struct arg *arg);
54int arg_parse_enum(const struct arg *arg);
55int arg_parse_enum_or_int(const struct arg *arg);
56#ifdef __cplusplus
57}  // extern "C"
58#endif
59
60#endif  // ARGS_H_
61