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   char                 **argv;
  18   const char            *name;
  19   const char            *val;
  20   unsigned int           argv_step;
  21   const struct arg_def  *def;
  22 };
  23
  24 struct arg_enum_list {
  25   const char *name;
  26   int         val;
  27 };
  28 #define ARG_ENUM_LIST_END {0}
  29
  30 typedef 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
  41 struct arg arg_init(char **argv);
  42 int arg_match(struct arg *arg_, const struct arg_def *def, char **argv);
  43 const char *arg_next(struct arg *arg);
  44 void arg_show_usage(FILE *fp, const struct arg_def *const *defs);
  45 char **argv_dup(int argc, const char **argv);
  46
  47 unsigned int arg_parse_uint(const struct arg *arg);
  48 int arg_parse_int(const struct arg *arg);
  49 struct vpx_rational arg_parse_rational(const struct arg *arg);
  50 int arg_parse_enum_or_int(const struct arg *arg);
  51 #endif