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      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 separating the
     10  * CharSetRegistry from the CharSetEncoding
     11  */
     12 
     13 #ifndef _DVICHAR_H_
     14 #define _DVICHAR_H_
     15 
     16 #include "Dvi.h"
     17 
     18 #define DVI_MAX_SYNONYMS	10
     19 #define DVI_MAP_SIZE		256
     20 #define DVI_HASH_SIZE		256
     21 #define DVI_MAX_LIGATURES	16
     22 
     23 typedef struct _dviCharNameHash {
     24     struct _dviCharNameHash *next;
     25     const char *name;
     26     int position;
     27 } DviCharNameHash;
     28 
     29 typedef struct _dviCharNameMap {
     30     const char *encoding;
     31     int special;
     32     const char *const dvi_names[DVI_MAP_SIZE][DVI_MAX_SYNONYMS];
     33     const char *const ligatures[DVI_MAX_LIGATURES][2];
     34     DviCharNameHash *buckets[DVI_HASH_SIZE];
     35 } DviCharNameMap;
     36 
     37 extern DviCharNameMap *DviFindMap(const char *);
     38 extern void DviRegisterMap(DviCharNameMap *);
     39 
     40 #define DviCharName(map,index,synonym)	((map)->dvi_names[index][synonym])
     41 extern int DviCharIndex(DviCharNameMap *, const char *);
     42 extern unsigned char *DviCharIsLigature(DviCharNameMap *, const char *);
     43 extern void ResetFonts(DviWidget);
     44 
     45 #endif
     46