parse-options.h

   1 #ifndef PARSE_OPTIONS_H
   2 #define PARSE_OPTIONS_H
   3
   4 enum parse_opt_type {
   5         OPTION_END,
   6         OPTION_BOOLEAN,
   7         OPTION_STRING,
   8         OPTION_INTEGER,
   9 };
  10
  11 enum parse_opt_flags {
  12         PARSE_OPT_KEEP_DASHDASH = 1,
  13 };
  14
  15 struct option {
  16         enum parse_opt_type type;
  17         int short_name;
  18         const char *long_name;
  19         void *value;
  20 };
  21
  22 #define OPT_END()                   { OPTION_END }
  23 #define OPT_BOOLEAN(s, l, v, h)     { OPTION_BOOLEAN, (s), (l), (v) }
  24 #define OPT_INTEGER(s, l, v, h)     { OPTION_INTEGER, (s), (l), (v) }
  25 #define OPT_STRING(s, l, v, a, h)   { OPTION_STRING,  (s), (l), (v) }
  26
  27 /* parse_options() will filter out the processed options and leave the
  28  * non-option argments in argv[].
  29  * Returns the number of arguments left in argv[].
  30  */
  31 extern int parse_options(int argc, const char **argv,
  32                          const struct option *options,
  33                          const char *usagestr, int flags);
  34
  35 #endif