386BSD 0.0 development

[unix-history] / usr / src / usr.bin / groff / libXdvi / DviChar.h

/*
* DviChar.h
*
* descriptions for mapping dvi names to
* font indexes and back.  Dvi fonts are all
* 256 elements (actually only 256-32 are usable).
*
* The encoding names are taken from X -
* case insensitive, a dash seperating the
* CharSetRegistry from the CharSetEncoding
*/

# define DVI_MAX_SYNONYMS       10
# define DVI_MAP_SIZE           256
# define DVI_HASH_SIZE          256

typedef struct _dviCharNameHash {
       struct _dviCharNameHash *next;
       char                    *name;
       int                     position;
} DviCharNameHash;

typedef struct _dviCharNameMap {
   char                *encoding;
   int                 special;
   char                *dvi_names[DVI_MAP_SIZE][DVI_MAX_SYNONYMS];
   DviCharNameHash     *buckets[DVI_HASH_SIZE];
} DviCharNameMap;

extern DviCharNameMap   *DviFindMap ( /* char *encoding */ );
extern void             DviRegisterMap ( /* DviCharNameMap *map */ );
#ifdef NOTDEF
extern char             *DviCharName ( /* DviCharNameMap *map, int index, int synonym */ );
#else
#define DviCharName(map,index,synonym)  ((map)->dvi_names[index][synonym])
#endif
extern int              DviCharIndex ( /* DviCharNameMap *map, char *name */ );