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 typedef struct arg_def
  26 {
  27     const char *short_name;
  28     const char *long_name;
  29     int         has_val;
  30     const char *desc;
  31 } arg_def_t;
  32 #define ARG_DEF(s,l,v,d) {s,l,v,d}
  33 #define ARG_DEF_LIST_END {0}
  34
  35 struct arg arg_init(char **argv);
  36 int arg_match(struct arg *arg_, const struct arg_def *def, char **argv);
  37 const char *arg_next(struct arg *arg);
  38 void arg_show_usage(FILE *fp, const struct arg_def *const *defs);
  39 char **argv_dup(int argc, const char **argv);
  40
  41 unsigned int arg_parse_uint(const struct arg *arg);
  42 int arg_parse_int(const struct arg *arg);
  43 struct vpx_rational arg_parse_rational(const struct arg *arg);
  44 #endif