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/**
* Yudit Unicode Editor Source File
*
* GNU Copyright (C) 1997-2023 Gaspar Sinai <gaspar@yudit.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2,
* dated June 1991. See file COPYYING for details.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef SCluster_h
#define SCluster_h
#include "stoolkit/STypes.h"
#define SD_YUDIT 0
/* ligature 0x8001xxxx */
#define SD_DEVANAGARI 1
/* ligature 0x8002xxxx */
#define SD_BENGALI 2
/* ligature 0x8003xxxx */
#define SD_GURMUKHI 3
/* ligature 0x8004xxxx */
#define SD_GUJARATI 4
/* ligature 0x8005xxxx */
#define SD_ORIYA 5
/* ligature 0x8006xxxx */
#define SD_TAMIL 6
/* ligature 0x8007xxxx */
#define SD_TELUGU 7
/* ligature 0x8008xxxx */
#define SD_KANNADA 8
/* ligature 0x8009xxxx */
#define SD_MALAYALAM 9
/* ligature 0x800axxxx */
#define SD_SINHALA 10
/* Hangul */
#define SD_HANGUL_JAMO 11
/* Precomposed Unicode JAMOS */
#define SD_HANGUL_PREC 12
/* Thai, Lao and Tibetan will need positioning */
#define SD_THAI 13
#define SD_LAO 14
#define SD_TIBETAN 15
/* complex combining ligature
a ligature that has combining marks in the middle */
#define SD_COMBINING_LIGATURE 16
/* bengali Ra+Ya in the beginning of the word. */
#define SD_BENGALI_BEGIN 17
/* Old Hungarian */
#define SD_PUA_ROVAS 18
// AKA OLD HUNGARIAN from Unicode 7.0.0
#define SD_ROVASIRAS 19
#define SD_REGIONAL_INDICATOR_SYMBOL 20
#define SD_SCRIPT_MAX 21
/* Arabic and Syriac shapes A000[1234]000. */
/* if we are not this lucky we would need one for each */
#define SD_AS_SHAPES 0x2000
/* Escape 9fffffxx */
#define SD_AS_LITERAL 0x1fff
/* get the name of OTF font shaping feature name */
const char* getShapeCode (unsigned int icode);
/**
* This one generates ligature on the non-displayable cluster
*/
unsigned int getCluster (const SV_UCS4& ucs4, unsigned int index,
SV_UCS4* ret, int* finished=0);
SS_UCS4 addCombiningLigature (const SS_UCS4* unicode, unsigned int ul,
const SS_UCS4* ligAndMarks, unsigned int cl);
void putLigatureUnicode (SS_UCS4 ligature, const SS_UCS4* code,
unsigned int size);
void putLigatureCluster (SS_UCS4 ligature, const SS_UCS4* code,
unsigned int size);
unsigned int getLigatureUnicode (SS_UCS4 ligature, SS_UCS4* buffer);
unsigned int getLigatureCluster (SS_UCS4 ligature, SS_UCS4* buffer);
bool isLigature (SS_UCS4 _comp);
/* get script name or null */
const char* getLigatureScript (SS_UCS4 comp);
int getLigatureScriptCode (SS_UCS4 comp);
int getCharType (SS_UCS4 unchar);
#define SD_JAMO_X 0 /* non-jamo */
#define SD_JAMO_L 1 /* choseong: leanding consonants or syllable initials */
#define SD_JAMO_V 2 /* jungseong: vowels or syllable-peak characters */
#define SD_JAMO_T 3 /* jongseong: trailing consonants or syllable final characters */
int getJamoClass (SS_UCS4 uc);
/* get the index */
int getUnicodeScript (SS_UCS4 comp);
bool isCoveredScipt (SS_UCS4 comp, int scipt);
SS_UCS4 getHalant (int index);
SS_UCS4 getLRVowelLeft (SS_UCS4 u);
SS_UCS4 getLRVowelRight (SS_UCS4 u);
/**
* Some encoders will give back values in yudit ligature range.
* Expand those ligatures.
*/
void expandYuditLigatures (SV_UCS4* decd);
/* 1,2 is rovas, 3 is already a cluster */
int getRovasType (SS_UCS4 chr);
int getPUARovasType (SS_UCS4 chr);
#define SD_INDIC_CONSONANT_BELOW_BASE 0x1
#define SD_INDIC_HALANT 0x2
#define SD_INDIC_INDEP_VOWEL 0x3
#define SD_INDIC_LEFT_VOWEL 0x4
#define SD_INDIC_RIGHT_VOWEL 0x5
#define SD_INDIC_TOP_VOWEL 0x6
#define SD_INDIC_BOTTOM_VOWEL 0x7
#define SD_INDIC_SIGN 0x8
#define SD_INDIC_ZWJ 0x9
#define SD_INDIC_ZWNJ 0xa
#define SD_INDIC_NUKTA 0xc
#define SD_INDIC_MODIFIER 0xd
#define SD_INDIC_LEFT_RIGHT_VOWEL 0xe
#define SD_INDIC_CONSONANT_BASE 0xf
#define SD_INDIC_CONSONANT_POST_BASE 0x10
#define SD_INDIC_CONSONANT_DEAD 0x11
#endif /* SCluster_h */
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