args.h

   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 struct 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
  25 struct arg_enum_list
  26 {
  27     const char *name;
  28     int         val;
  29 };
  30 #define ARG_ENUM_LIST_END {0}
  31
  32 typedef 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
  44 struct arg arg_init(char **argv);
  45 int arg_match(struct arg *arg_, const struct arg_def *def, char **argv);
  46 const char *arg_next(struct arg *arg);
  47 void arg_show_usage(FILE *fp, const struct arg_def *const *defs);
  48 char **argv_dup(int argc, const char **argv);
  49
  50 unsigned int arg_parse_uint(const struct arg *arg);
  51 int arg_parse_int(const struct arg *arg);
  52 struct vpx_rational arg_parse_rational(const struct arg *arg);
  53 int arg_parse_enum_or_int(const struct arg *arg);
  54 #endif