/*
 * Copyright (C) 2012 Grigori Goronzy <greg@kinoho.net>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef UCDN_H
#define UCDN_H


#if defined(__GNUC__) && (__GNUC__ >= 4) && !defined(__MINGW32__)
# define HB_BEGIN_VISIBILITY _Pragma ("GCC visibility push(hidden)")
# define HB_END_VISIBILITY _Pragma ("GCC visibility pop")
#else
# define HB_BEGIN_VISIBILITY
# define HB_END_VISIBILITY
#endif
#ifdef __cplusplus
# define HB_BEGIN_HEADER  extern "C" { HB_BEGIN_VISIBILITY
# define HB_END_HEADER  HB_END_VISIBILITY }
#else
# define HB_BEGIN_HEADER  HB_BEGIN_VISIBILITY
# define HB_END_HEADER  HB_END_VISIBILITY
#endif

HB_BEGIN_HEADER

#if defined (_SVR4) || defined (SVR4) || defined (__OpenBSD__) || \
    defined (_sgi) || defined (__sun) || defined (sun) || \
    defined (__digital__) || defined (__HP_cc)
#  include <inttypes.h>
#elif defined (_AIX)
#  include <sys/inttypes.h>
#else
#  include <stdint.h>
#endif


#define UCDN_EAST_ASIAN_F 0
#define UCDN_EAST_ASIAN_H 1
#define UCDN_EAST_ASIAN_W 2
#define UCDN_EAST_ASIAN_NA 3
#define UCDN_EAST_ASIAN_A 4
#define UCDN_EAST_ASIAN_N 5

#define UCDN_SCRIPT_COMMON 0
#define UCDN_SCRIPT_LATIN 1
#define UCDN_SCRIPT_GREEK 2
#define UCDN_SCRIPT_CYRILLIC 3
#define UCDN_SCRIPT_ARMENIAN 4
#define UCDN_SCRIPT_HEBREW 5
#define UCDN_SCRIPT_ARABIC 6
#define UCDN_SCRIPT_SYRIAC 7
#define UCDN_SCRIPT_THAANA 8
#define UCDN_SCRIPT_DEVANAGARI 9
#define UCDN_SCRIPT_BENGALI 10
#define UCDN_SCRIPT_GURMUKHI 11
#define UCDN_SCRIPT_GUJARATI 12
#define UCDN_SCRIPT_ORIYA 13
#define UCDN_SCRIPT_TAMIL 14
#define UCDN_SCRIPT_TELUGU 15
#define UCDN_SCRIPT_KANNADA 16
#define UCDN_SCRIPT_MALAYALAM 17
#define UCDN_SCRIPT_SINHALA 18
#define UCDN_SCRIPT_THAI 19
#define UCDN_SCRIPT_LAO 20
#define UCDN_SCRIPT_TIBETAN 21
#define UCDN_SCRIPT_MYANMAR 22
#define UCDN_SCRIPT_GEORGIAN 23
#define UCDN_SCRIPT_HANGUL 24
#define UCDN_SCRIPT_ETHIOPIC 25
#define UCDN_SCRIPT_CHEROKEE 26
#define UCDN_SCRIPT_CANADIAN_ABORIGINAL 27
#define UCDN_SCRIPT_OGHAM 28
#define UCDN_SCRIPT_RUNIC 29
#define UCDN_SCRIPT_KHMER 30
#define UCDN_SCRIPT_MONGOLIAN 31
#define UCDN_SCRIPT_HIRAGANA 32
#define UCDN_SCRIPT_KATAKANA 33
#define UCDN_SCRIPT_BOPOMOFO 34
#define UCDN_SCRIPT_HAN 35
#define UCDN_SCRIPT_YI 36
#define UCDN_SCRIPT_OLD_ITALIC 37
#define UCDN_SCRIPT_GOTHIC 38
#define UCDN_SCRIPT_DESERET 39
#define UCDN_SCRIPT_INHERITED 40
#define UCDN_SCRIPT_TAGALOG 41
#define UCDN_SCRIPT_HANUNOO 42
#define UCDN_SCRIPT_BUHID 43
#define UCDN_SCRIPT_TAGBANWA 44
#define UCDN_SCRIPT_LIMBU 45
#define UCDN_SCRIPT_TAI_LE 46
#define UCDN_SCRIPT_LINEAR_B 47
#define UCDN_SCRIPT_UGARITIC 48
#define UCDN_SCRIPT_SHAVIAN 49
#define UCDN_SCRIPT_OSMANYA 50
#define UCDN_SCRIPT_CYPRIOT 51
#define UCDN_SCRIPT_BRAILLE 52
#define UCDN_SCRIPT_BUGINESE 53
#define UCDN_SCRIPT_COPTIC 54
#define UCDN_SCRIPT_NEW_TAI_LUE 55
#define UCDN_SCRIPT_GLAGOLITIC 56
#define UCDN_SCRIPT_TIFINAGH 57
#define UCDN_SCRIPT_SYLOTI_NAGRI 58
#define UCDN_SCRIPT_OLD_PERSIAN 59
#define UCDN_SCRIPT_KHAROSHTHI 60
#define UCDN_SCRIPT_BALINESE 61
#define UCDN_SCRIPT_CUNEIFORM 62
#define UCDN_SCRIPT_PHOENICIAN 63
#define UCDN_SCRIPT_PHAGS_PA 64
#define UCDN_SCRIPT_NKO 65
#define UCDN_SCRIPT_SUNDANESE 66
#define UCDN_SCRIPT_LEPCHA 67
#define UCDN_SCRIPT_OL_CHIKI 68
#define UCDN_SCRIPT_VAI 69
#define UCDN_SCRIPT_SAURASHTRA 70
#define UCDN_SCRIPT_KAYAH_LI 71
#define UCDN_SCRIPT_REJANG 72
#define UCDN_SCRIPT_LYCIAN 73
#define UCDN_SCRIPT_CARIAN 74
#define UCDN_SCRIPT_LYDIAN 75
#define UCDN_SCRIPT_CHAM 76
#define UCDN_SCRIPT_TAI_THAM 77
#define UCDN_SCRIPT_TAI_VIET 78
#define UCDN_SCRIPT_AVESTAN 79
#define UCDN_SCRIPT_EGYPTIAN_HIEROGLYPHS 80
#define UCDN_SCRIPT_SAMARITAN 81
#define UCDN_SCRIPT_LISU 82
#define UCDN_SCRIPT_BAMUM 83
#define UCDN_SCRIPT_JAVANESE 84
#define UCDN_SCRIPT_MEETEI_MAYEK 85
#define UCDN_SCRIPT_IMPERIAL_ARAMAIC 86
#define UCDN_SCRIPT_OLD_SOUTH_ARABIAN 87
#define UCDN_SCRIPT_INSCRIPTIONAL_PARTHIAN 88
#define UCDN_SCRIPT_INSCRIPTIONAL_PAHLAVI 89
#define UCDN_SCRIPT_OLD_TURKIC 90
#define UCDN_SCRIPT_KAITHI 91
#define UCDN_SCRIPT_BATAK 92
#define UCDN_SCRIPT_BRAHMI 93
#define UCDN_SCRIPT_MANDAIC 94
#define UCDN_SCRIPT_CHAKMA 95
#define UCDN_SCRIPT_MEROITIC_CURSIVE 96
#define UCDN_SCRIPT_MEROITIC_HIEROGLYPHS 97
#define UCDN_SCRIPT_MIAO 98
#define UCDN_SCRIPT_SHARADA 99
#define UCDN_SCRIPT_SORA_SOMPENG 100
#define UCDN_SCRIPT_TAKRI 101
#define UCDN_SCRIPT_UNKNOWN 102
#define UCDN_SCRIPT_BASSA_VAH 103
#define UCDN_SCRIPT_CAUCASIAN_ALBANIAN 104
#define UCDN_SCRIPT_DUPLOYAN 105
#define UCDN_SCRIPT_ELBASAN 106
#define UCDN_SCRIPT_GRANTHA 107
#define UCDN_SCRIPT_KHOJKI 108
#define UCDN_SCRIPT_KHUDAWADI 109
#define UCDN_SCRIPT_LINEAR_A 110
#define UCDN_SCRIPT_MAHAJANI 111
#define UCDN_SCRIPT_MANICHAEAN 112
#define UCDN_SCRIPT_MENDE_KIKAKUI 113
#define UCDN_SCRIPT_MODI 114
#define UCDN_SCRIPT_MRO 115
#define UCDN_SCRIPT_NABATAEAN 116
#define UCDN_SCRIPT_OLD_NORTH_ARABIAN 117
#define UCDN_SCRIPT_OLD_PERMIC 118
#define UCDN_SCRIPT_PAHAWH_HMONG 119
#define UCDN_SCRIPT_PALMYRENE 120
#define UCDN_SCRIPT_PAU_CIN_HAU 121
#define UCDN_SCRIPT_PSALTER_PAHLAVI 122
#define UCDN_SCRIPT_SIDDHAM 123
#define UCDN_SCRIPT_TIRHUTA 124
#define UCDN_SCRIPT_WARANG_CITI 125
#define UCDN_SCRIPT_AHOM 126
#define UCDN_SCRIPT_ANATOLIAN_HIEROGLYPHS 127
#define UCDN_SCRIPT_HATRAN 128
#define UCDN_SCRIPT_MULTANI 129
#define UCDN_SCRIPT_OLD_HUNGARIAN 130
#define UCDN_SCRIPT_SIGNWRITING 131
#define UCDN_SCRIPT_ADLAM 132
#define UCDN_SCRIPT_BHAIKSUKI 133
#define UCDN_SCRIPT_MARCHEN 134
#define UCDN_SCRIPT_NEWA 135
#define UCDN_SCRIPT_OSAGE 136
#define UCDN_SCRIPT_TANGUT 137
#define UCDN_SCRIPT_MASARAM_GONDI 138
#define UCDN_SCRIPT_NUSHU 139
#define UCDN_SCRIPT_SOYOMBO 140
#define UCDN_SCRIPT_ZANABAZAR_SQUARE 141

#define UCDN_LINEBREAK_CLASS_OP 0
#define UCDN_LINEBREAK_CLASS_CL 1
#define UCDN_LINEBREAK_CLASS_CP 2
#define UCDN_LINEBREAK_CLASS_QU 3
#define UCDN_LINEBREAK_CLASS_GL 4
#define UCDN_LINEBREAK_CLASS_NS 5
#define UCDN_LINEBREAK_CLASS_EX 6
#define UCDN_LINEBREAK_CLASS_SY 7
#define UCDN_LINEBREAK_CLASS_IS 8
#define UCDN_LINEBREAK_CLASS_PR 9
#define UCDN_LINEBREAK_CLASS_PO 10
#define UCDN_LINEBREAK_CLASS_NU 11
#define UCDN_LINEBREAK_CLASS_AL 12
#define UCDN_LINEBREAK_CLASS_HL 13
#define UCDN_LINEBREAK_CLASS_ID 14
#define UCDN_LINEBREAK_CLASS_IN 15
#define UCDN_LINEBREAK_CLASS_HY 16
#define UCDN_LINEBREAK_CLASS_BA 17
#define UCDN_LINEBREAK_CLASS_BB 18
#define UCDN_LINEBREAK_CLASS_B2 19
#define UCDN_LINEBREAK_CLASS_ZW 20
#define UCDN_LINEBREAK_CLASS_CM 21
#define UCDN_LINEBREAK_CLASS_WJ 22
#define UCDN_LINEBREAK_CLASS_H2 23
#define UCDN_LINEBREAK_CLASS_H3 24
#define UCDN_LINEBREAK_CLASS_JL 25
#define UCDN_LINEBREAK_CLASS_JV 26
#define UCDN_LINEBREAK_CLASS_JT 27
#define UCDN_LINEBREAK_CLASS_RI 28
#define UCDN_LINEBREAK_CLASS_AI 29
#define UCDN_LINEBREAK_CLASS_BK 30
#define UCDN_LINEBREAK_CLASS_CB 31
#define UCDN_LINEBREAK_CLASS_CJ 32
#define UCDN_LINEBREAK_CLASS_CR 33
#define UCDN_LINEBREAK_CLASS_LF 34
#define UCDN_LINEBREAK_CLASS_NL 35
#define UCDN_LINEBREAK_CLASS_SA 36
#define UCDN_LINEBREAK_CLASS_SG 37
#define UCDN_LINEBREAK_CLASS_SP 38
#define UCDN_LINEBREAK_CLASS_XX 39
#define UCDN_LINEBREAK_CLASS_ZWJ 40
#define UCDN_LINEBREAK_CLASS_EB 41
#define UCDN_LINEBREAK_CLASS_EM 42

#define UCDN_GENERAL_CATEGORY_CC 0
#define UCDN_GENERAL_CATEGORY_CF 1
#define UCDN_GENERAL_CATEGORY_CN 2
#define UCDN_GENERAL_CATEGORY_CO 3
#define UCDN_GENERAL_CATEGORY_CS 4
#define UCDN_GENERAL_CATEGORY_LL 5
#define UCDN_GENERAL_CATEGORY_LM 6
#define UCDN_GENERAL_CATEGORY_LO 7
#define UCDN_GENERAL_CATEGORY_LT 8
#define UCDN_GENERAL_CATEGORY_LU 9
#define UCDN_GENERAL_CATEGORY_MC 10
#define UCDN_GENERAL_CATEGORY_ME 11
#define UCDN_GENERAL_CATEGORY_MN 12
#define UCDN_GENERAL_CATEGORY_ND 13
#define UCDN_GENERAL_CATEGORY_NL 14
#define UCDN_GENERAL_CATEGORY_NO 15
#define UCDN_GENERAL_CATEGORY_PC 16
#define UCDN_GENERAL_CATEGORY_PD 17
#define UCDN_GENERAL_CATEGORY_PE 18
#define UCDN_GENERAL_CATEGORY_PF 19
#define UCDN_GENERAL_CATEGORY_PI 20
#define UCDN_GENERAL_CATEGORY_PO 21
#define UCDN_GENERAL_CATEGORY_PS 22
#define UCDN_GENERAL_CATEGORY_SC 23
#define UCDN_GENERAL_CATEGORY_SK 24
#define UCDN_GENERAL_CATEGORY_SM 25
#define UCDN_GENERAL_CATEGORY_SO 26
#define UCDN_GENERAL_CATEGORY_ZL 27
#define UCDN_GENERAL_CATEGORY_ZP 28
#define UCDN_GENERAL_CATEGORY_ZS 29

#define UCDN_BIDI_CLASS_L 0
#define UCDN_BIDI_CLASS_LRE 1
#define UCDN_BIDI_CLASS_LRO 2
#define UCDN_BIDI_CLASS_R 3
#define UCDN_BIDI_CLASS_AL 4
#define UCDN_BIDI_CLASS_RLE 5
#define UCDN_BIDI_CLASS_RLO 6
#define UCDN_BIDI_CLASS_PDF 7
#define UCDN_BIDI_CLASS_EN 8
#define UCDN_BIDI_CLASS_ES 9
#define UCDN_BIDI_CLASS_ET 10
#define UCDN_BIDI_CLASS_AN 11
#define UCDN_BIDI_CLASS_CS 12
#define UCDN_BIDI_CLASS_NSM 13
#define UCDN_BIDI_CLASS_BN 14
#define UCDN_BIDI_CLASS_B 15
#define UCDN_BIDI_CLASS_S 16
#define UCDN_BIDI_CLASS_WS 17
#define UCDN_BIDI_CLASS_ON 18
#define UCDN_BIDI_CLASS_LRI 19
#define UCDN_BIDI_CLASS_RLI 20
#define UCDN_BIDI_CLASS_FSI 21
#define UCDN_BIDI_CLASS_PDI 22

#define UCDN_BIDI_PAIRED_BRACKET_TYPE_OPEN 0
#define UCDN_BIDI_PAIRED_BRACKET_TYPE_CLOSE 1
#define UCDN_BIDI_PAIRED_BRACKET_TYPE_NONE 2

/**
 * Return version of the Unicode database.
 *
 * @return Unicode database version
 */
const char *ucdn_get_unicode_version(void);

/**
 * Get combining class of a codepoint.
 *
 * @param code Unicode codepoint
 * @return combining class value, as defined in UAX#44
 */
int ucdn_get_combining_class(uint32_t code);

/**
 * Get east-asian width of a codepoint.
 *
 * @param code Unicode codepoint
 * @return value according to UCDN_EAST_ASIAN_* and as defined in UAX#11.
 */
int ucdn_get_east_asian_width(uint32_t code);

/**
 * Get general category of a codepoint.
 *
 * @param code Unicode codepoint
 * @return value according to UCDN_GENERAL_CATEGORY_* and as defined in
 * UAX#44.
 */
int ucdn_get_general_category(uint32_t code);

/**
 * Get bidirectional class of a codepoint.
 *
 * @param code Unicode codepoint
 * @return value according to UCDN_BIDI_CLASS_* and as defined in UAX#44.
 */
int ucdn_get_bidi_class(uint32_t code);

/**
 * Get script of a codepoint.
 *
 * @param code Unicode codepoint
 * @return value according to UCDN_SCRIPT_* and as defined in UAX#24.
 */
int ucdn_get_script(uint32_t code);

/**
 * Get unresolved linebreak class of a codepoint. This does not take
 * rule LB1 of UAX#14 into account. See ucdn_get_resolved_linebreak_class()
 * for resolved linebreak classes.
 *
 * @param code Unicode codepoint
 * @return value according to UCDN_LINEBREAK_* and as defined in UAX#14.
 */
int ucdn_get_linebreak_class(uint32_t code);

/**
 * Get resolved linebreak class of a codepoint. This resolves characters
 * in the AI, SG, XX, SA and CJ classes according to rule LB1 of UAX#14.
 * In addition the CB class is resolved as the equivalent B2 class and
 * the NL class is resolved as the equivalent BK class.
 *
 * @param code Unicode codepoint
 * @return value according to UCDN_LINEBREAK_* and as defined in UAX#14.
 */
int ucdn_get_resolved_linebreak_class(uint32_t code);

/**
 * Check if codepoint can be mirrored.
 *
 * @param code Unicode codepoint
 * @return 1 if mirrored character exists, otherwise 0
 */
int ucdn_get_mirrored(uint32_t code);

/**
 * Mirror a codepoint.
 *
 * @param code Unicode codepoint
 * @return mirrored codepoint or the original codepoint if no
 * mirrored character exists
 */
uint32_t ucdn_mirror(uint32_t code);

/**
 * Get paired bracket for a codepoint.
 *
 * @param code Unicode codepoint
 * @return paired bracket codepoint or the original codepoint if no
 * paired bracket character exists
 */
uint32_t ucdn_paired_bracket(uint32_t code);

/**
 * Get paired bracket type for a codepoint.
 *
 * @param code Unicode codepoint
 * @return value according to UCDN_BIDI_PAIRED_BRACKET_TYPE_* and as defined
 * in UAX#9.
 *
 */
int ucdn_paired_bracket_type(uint32_t code);

/**
 * Pairwise canonical decomposition of a codepoint. This includes
 * Hangul Jamo decomposition (see chapter 3.12 of the Unicode core
 * specification).
 *
 * Hangul is decomposed into L and V jamos for LV forms, and an
 * LV precomposed syllable and a T jamo for LVT forms.
 *
 * @param code Unicode codepoint
 * @param a filled with first codepoint of decomposition
 * @param b filled with second codepoint of decomposition, or 0
 * @return success
 */
int ucdn_decompose(uint32_t code, uint32_t *a, uint32_t *b);

/**
 * Compatibility decomposition of a codepoint.
 *
 * @param code Unicode codepoint
 * @param decomposed filled with decomposition, must be able to hold 18
 * characters
 * @return length of decomposition or 0 in case none exists
 */
int ucdn_compat_decompose(uint32_t code, uint32_t *decomposed);

/**
 * Pairwise canonical composition of two codepoints. This includes
 * Hangul Jamo composition (see chapter 3.12 of the Unicode core
 * specification).
 *
 * Hangul composition expects either L and V jamos, or an LV
 * precomposed syllable and a T jamo. This is exactly the inverse
 * of pairwise Hangul decomposition.
 *
 * @param code filled with composition
 * @param a first codepoint
 * @param b second codepoint
 * @return success
 */
int ucdn_compose(uint32_t *code, uint32_t a, uint32_t b);

#ifdef __cplusplus
}
#endif

#endif