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
16struct arg {
17  char                 **argv;
18  const char            *name;
19  const char            *val;
20  unsigned int           argv_step;
21  const struct arg_def  *def;
22};
23
24struct arg_enum_list {
25  const char *name;
26  int         val;
27};
28#define ARG_ENUM_LIST_END {0}
29
30typedef struct arg_def {
31  const char *short_name;
32  const char *long_name;
33  int         has_val;
34  const char *desc;
35  const struct arg_enum_list *enums;
36} arg_def_t;
37#define ARG_DEF(s,l,v,d) {s,l,v,d, NULL}
38#define ARG_DEF_ENUM(s,l,v,d,e) {s,l,v,d,e}
39#define ARG_DEF_LIST_END {0}
40
41struct arg arg_init(char **argv);
42int arg_match(struct arg *arg_, const struct arg_def *def, char **argv);
43const char *arg_next(struct arg *arg);
44void arg_show_usage(FILE *fp, const struct arg_def *const *defs);
45char **argv_dup(int argc, const char **argv);
46
47unsigned int arg_parse_uint(const struct arg *arg);
48int arg_parse_int(const struct arg *arg);
49struct vpx_rational arg_parse_rational(const struct arg *arg);
50int arg_parse_enum_or_int(const struct arg *arg);
51#endif
52