libtu/map.h

   1 /*
   2  * libtu/map.h
   3  *
   4  * Copyright (c) Tuomo Valkonen 1999-2002.
   5  *
   6  * You may distribute and modify this library under the terms of either
   7  * the Clarified Artistic License or the GNU LGPL, version 2.1 or later.
   8  */
   9
  10 #ifndef LIBTU_MAP_H
  11 #define LIBTU_MAP_H
  12
  13 typedef struct _StringIntMap{
  14     const char *string;
  15     int value;
  16 } StringIntMap;
  17
  18 #define END_STRINGINTMAP {NULL, 0}
  19
  20 /* Return the index of str in map or -1 if not found. */
  21 extern int stringintmap_ndx(const StringIntMap *map, const char *str);
  22 extern int stringintmap_value(const StringIntMap *map, const char *str,
  23                               int dflt);
  24 extern const char *stringintmap_key(const StringIntMap *map,
  25                                     int value, const char *dflt);
  26
  27
  28
  29 typedef void (*FunPtr)(void);
  30
  31 #define DECLFUNPTRMAP(NAME) \
  32 typedef struct _String##NAME##Map{\
  33     const char *string;\
  34     NAME value;\
  35 } String##NAME##Map
  36
  37 DECLFUNPTRMAP(FunPtr);
  38
  39 #define END_STRINGPTRMAP {NULL, NULL}
  40
  41 /* Return the index of str in map or -1 if not found. */
  42 extern int stringfunptrmap_ndx(const StringFunPtrMap *map, const char *str);
  43 extern FunPtr stringfunptrmap_value(const StringFunPtrMap *map, const char *str,
  44                               FunPtr dflt);
  45 extern const char *stringfunptrmap_key(const StringFunPtrMap *map,
  46                                     FunPtr value, const char *dflt);
  47
  48
  49 #define STRINGFUNPTRMAP_NDX(MAP,STR) stringfunptrmap_ndx((StringFunPtrMap *)MAP, STR)
  50 #define STRINGFUNPTRMAP_VALUE(TYPE,MAP,STR,DFLT) (TYPE)stringfunptrmap_value((StringFunPtrMap *)MAP, STR, (FunPtr)DFLT)
  51 #define STRINGFUNPTRMAP_KEY(MAP,VALUE,DFLT) stringfunptrmap_key((StringFunPtrMap *)MAP, (FunPtr)VALUE, DFLT)
  52
  53
  54 #endif /* LIBTU_MAP_H */