gnu/usr.bin/groff/libXdvi/DviChar.h

   1 /*
   2  * DviChar.h
   3  *
   4  * descriptions for mapping dvi names to
   5  * font indexes and back.  Dvi fonts are all
   6  * 256 elements (actually only 256-32 are usable).
   7  *
   8  * The encoding names are taken from X -
   9  * case insensitive, a dash seperating the
  10  * CharSetRegistry from the CharSetEncoding
  11  */
  12
  13 # define DVI_MAX_SYNONYMS       10
  14 # define DVI_MAP_SIZE           256
  15 # define DVI_HASH_SIZE          256
  16
  17 typedef struct _dviCharNameHash {
  18         struct _dviCharNameHash *next;
  19         char                    *name;
  20         int                     position;
  21 } DviCharNameHash;
  22
  23 typedef struct _dviCharNameMap {
  24     char                *encoding;
  25     int                 special;
  26     char                *dvi_names[DVI_MAP_SIZE][DVI_MAX_SYNONYMS];
  27     DviCharNameHash     *buckets[DVI_HASH_SIZE];
  28 } DviCharNameMap;
  29
  30 extern DviCharNameMap   *DviFindMap ( /* char *encoding */ );
  31 extern void             DviRegisterMap ( /* DviCharNameMap *map */ );
  32 #ifdef NOTDEF
  33 extern char             *DviCharName ( /* DviCharNameMap *map, int index, int synonym */ );
  34 #else
  35 #define DviCharName(map,index,synonym)  ((map)->dvi_names[index][synonym])
  36 #endif
  37 extern int              DviCharIndex ( /* DviCharNameMap *map, char *name */ );