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{
18    char                 **argv;
19    const char            *name;
20    const char            *val;
21    unsigned int           argv_step;
22    const struct arg_def  *def;
23};
24
25struct arg_enum_list
26{
27    const char *name;
28    int         val;
29};
30#define ARG_ENUM_LIST_END {0}
31
32typedef struct arg_def
33{
34    const char *short_name;
35    const char *long_name;
36    int         has_val;
37    const char *desc;
38    const struct arg_enum_list *enums;
39} arg_def_t;
40#define ARG_DEF(s,l,v,d) {s,l,v,d, NULL}
41#define ARG_DEF_ENUM(s,l,v,d,e) {s,l,v,d,e}
42#define ARG_DEF_LIST_END {0}
43
44struct arg arg_init(char **argv);
45int arg_match(struct arg *arg_, const struct arg_def *def, char **argv);
46const char *arg_next(struct arg *arg);
47void arg_show_usage(FILE *fp, const struct arg_def *const *defs);
48char **argv_dup(int argc, const char **argv);
49
50unsigned int arg_parse_uint(const struct arg *arg);
51int arg_parse_int(const struct arg *arg);
52struct vpx_rational arg_parse_rational(const struct arg *arg);
53int arg_parse_enum_or_int(const struct arg *arg);
54#endif
55