/*
 * 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 separating the
 * CharSetRegistry from the CharSetEncoding
 */

#ifndef _DVICHAR_H_
#define _DVICHAR_H_

#include "Dvi.h"

#define DVI_MAX_SYNONYMS	10
#define DVI_MAP_SIZE		256
#define DVI_HASH_SIZE		256
#define DVI_MAX_LIGATURES	16

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

typedef struct _dviCharNameMap {
    const char *encoding;
    int special;
    const char *const dvi_names[DVI_MAP_SIZE][DVI_MAX_SYNONYMS];
    const char *const ligatures[DVI_MAX_LIGATURES][2];
    DviCharNameHash *buckets[DVI_HASH_SIZE];
} DviCharNameMap;

extern DviCharNameMap *DviFindMap(const char *);
extern void DviRegisterMap(DviCharNameMap *);

#define DviCharName(map,index,synonym)	((map)->dvi_names[index][synonym])
extern int DviCharIndex(DviCharNameMap *, const char *);
extern unsigned char *DviCharIsLigature(DviCharNameMap *, const char *);
extern void ResetFonts(DviWidget);

#endif