subopt-helper.h

   1 #ifndef MPLAYER_SUBOPT_HELPER_H
   2 #define MPLAYER_SUBOPT_HELPER_H
   3
   4 /**
   5  * \file subopt-helper.h
   6  *
   7  * \brief Datatype and functions declarations for usage
   8  *        of the suboption parser.
   9  *
  10  */
  11
  12 #define OPT_ARG_BOOL 0
  13 #define OPT_ARG_INT  1
  14 #define OPT_ARG_STR  2
  15 #define OPT_ARG_MSTRZ 3 ///< A malloced, zero terminated string, use free()!
  16 #define OPT_ARG_FLOAT 4
  17
  18 typedef int (*opt_test_f)(void *);
  19
  20 /** simple structure for defining the option name, type and storage location */
  21 typedef struct opt_s
  22 {
  23   const char * name; ///< string that identifies the option
  24   int type;    ///< option type as defined in subopt-helper.h
  25   void * valp; ///< pointer to the mem where the value should be stored
  26   opt_test_f test; ///< argument test func ( optional )
  27 } opt_t;
  28
  29 /** parses the string for the options specified in opt */
  30 int subopt_parse( char const * const str, const opt_t * opts );
  31
  32
  33 /*------------------ arg specific types and declaration -------------------*/
  34 typedef struct strarg_s
  35 {
  36   int len; ///< length of the string determined by the parser
  37   char const * str;  ///< pointer to position inside the parse string
  38 } strarg_t;
  39
  40
  41 int int_non_neg( int * i );
  42 int int_pos( int * i );
  43
  44 int strargcmp(strarg_t *arg, const char *str);
  45 int strargcasecmp(strarg_t *arg, char *str);
  46
  47 #endif /* MPLAYER_SUBOPT_HELPER_H */