hb-common.h revision fe28b997fbbeb2cfeab62ac453993ccffe3e6719
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright © 2007,2008,2009 Red Hat, Inc. 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright © 2011,2012 Google, Inc. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This is part of HarfBuzz, a text shaping library. 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Permission is hereby granted, without written agreement and without 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * license or royalty fees, to use, copy, modify, and distribute this 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * software and its documentation for any purpose, provided that the 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * above copyright notice and the following two paragraphs appear in 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * all copies of this software. 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * DAMAGE. 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Red Hat Author(s): Behdad Esfahbod 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Google Author(s): Behdad Esfahbod 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef HB_H_IN 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#error "Include <hb.h> instead." 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef HB_COMMON_H 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define HB_COMMON_H 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# ifdef __cplusplus 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# define HB_BEGIN_DECLS extern "C" { 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# define HB_END_DECLS } 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# else /* !__cplusplus */ 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# define HB_BEGIN_DECLS 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# define HB_END_DECLS 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# endif /* !__cplusplus */ 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)HB_BEGIN_DECLS 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if !defined (HB_DONT_DEFINE_STDINT) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined (_SVR4) || defined (SVR4) || defined (__OpenBSD__) || \ 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) defined (_sgi) || defined (__sun) || defined (sun) || \ 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) defined (__digital__) || defined (__HP_cc) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# include <inttypes.h> 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined (_AIX) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# include <sys/inttypes.h> 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* VS 2010 (_MSC_VER 1600) has stdint.h */ 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined (_MSC_VER) && _MSC_VER < 1600 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef __int8 int8_t; 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef unsigned __int8 uint8_t; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef __int16 int16_t; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef unsigned __int16 uint16_t; 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef __int32 int32_t; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef unsigned __int32 uint32_t; 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef __int64 int64_t; 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef unsigned __int64 uint64_t; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# include <stdint.h> 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef int hb_bool_t; 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint32_t hb_codepoint_t; 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef int32_t hb_position_t; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint32_t hb_mask_t; 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef union _hb_var_int_t { 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t u32; 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int32_t i32; 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint16_t u16[2]; 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int16_t i16[2]; 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint8_t u8[4]; 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int8_t i8[4]; 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} hb_var_int_t; 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* hb_tag_t */ 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef uint32_t hb_tag_t; 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define HB_TAG(a,b,c,d) ((hb_tag_t)((((uint8_t)(a))<<24)|(((uint8_t)(b))<<16)|(((uint8_t)(c))<<8)|((uint8_t)(d)))) 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define HB_UNTAG(tag) ((uint8_t)((tag)>>24)), ((uint8_t)((tag)>>16)), ((uint8_t)((tag)>>8)), ((uint8_t)(tag)) 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 94#define HB_TAG_NONE HB_TAG(0,0,0,0) 95 96/* len=-1 means str is NUL-terminated */ 97hb_tag_t hb_tag_from_string (const char *str, int len); 98 99 100/* hb_direction_t */ 101 102typedef enum { 103 HB_DIRECTION_INVALID = 0, 104 HB_DIRECTION_LTR = 4, 105 HB_DIRECTION_RTL, 106 HB_DIRECTION_TTB, 107 HB_DIRECTION_BTT 108} hb_direction_t; 109 110/* len=-1 means str is NUL-terminated */ 111hb_direction_t 112hb_direction_from_string (const char *str, int len); 113 114const char * 115hb_direction_to_string (hb_direction_t direction); 116 117#define HB_DIRECTION_IS_HORIZONTAL(dir) ((((unsigned int) (dir)) & ~1U) == 4) 118#define HB_DIRECTION_IS_VERTICAL(dir) ((((unsigned int) (dir)) & ~1U) == 6) 119#define HB_DIRECTION_IS_FORWARD(dir) ((((unsigned int) (dir)) & ~2U) == 4) 120#define HB_DIRECTION_IS_BACKWARD(dir) ((((unsigned int) (dir)) & ~2U) == 5) 121#define HB_DIRECTION_IS_VALID(dir) ((((unsigned int) (dir)) & ~3U) == 4) 122#define HB_DIRECTION_REVERSE(dir) ((hb_direction_t) (((unsigned int) (dir)) ^ 1)) 123 124 125/* hb_language_t */ 126 127typedef struct _hb_language_t *hb_language_t; 128 129/* len=-1 means str is NUL-terminated */ 130hb_language_t 131hb_language_from_string (const char *str, int len); 132 133const char * 134hb_language_to_string (hb_language_t language); 135 136#define HB_LANGUAGE_INVALID ((hb_language_t) NULL) 137 138hb_language_t 139hb_language_get_default (void); 140 141 142/* hb_unicode_general_category_t */ 143 144typedef enum 145{ 146 HB_UNICODE_GENERAL_CATEGORY_CONTROL, /* Cc */ 147 HB_UNICODE_GENERAL_CATEGORY_FORMAT, /* Cf */ 148 HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED, /* Cn */ 149 HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE, /* Co */ 150 HB_UNICODE_GENERAL_CATEGORY_SURROGATE, /* Cs */ 151 HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER, /* Ll */ 152 HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER, /* Lm */ 153 HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER, /* Lo */ 154 HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER, /* Lt */ 155 HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER, /* Lu */ 156 HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK, /* Mc */ 157 HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK, /* Me */ 158 HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK, /* Mn */ 159 HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER, /* Nd */ 160 HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER, /* Nl */ 161 HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER, /* No */ 162 HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION, /* Pc */ 163 HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION, /* Pd */ 164 HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION, /* Pe */ 165 HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION, /* Pf */ 166 HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION, /* Pi */ 167 HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION, /* Po */ 168 HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION, /* Ps */ 169 HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL, /* Sc */ 170 HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL, /* Sk */ 171 HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL, /* Sm */ 172 HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL, /* So */ 173 HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR, /* Zl */ 174 HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR, /* Zp */ 175 HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR /* Zs */ 176} hb_unicode_general_category_t; 177 178 179/* hb_script_t */ 180 181/* http://unicode.org/iso15924/ */ 182/* http://goo.gl/x9ilM */ 183typedef enum 184{ 185 /* Unicode-1.1 additions */ 186 HB_SCRIPT_COMMON = HB_TAG ('Z','y','y','y'), 187 HB_SCRIPT_ARABIC = HB_TAG ('A','r','a','b'), 188 HB_SCRIPT_ARMENIAN = HB_TAG ('A','r','m','n'), 189 HB_SCRIPT_BENGALI = HB_TAG ('B','e','n','g'), 190 HB_SCRIPT_BOPOMOFO = HB_TAG ('B','o','p','o'), 191 HB_SCRIPT_CANADIAN_ABORIGINAL = HB_TAG ('C','a','n','s'), 192 HB_SCRIPT_CHEROKEE = HB_TAG ('C','h','e','r'), 193 HB_SCRIPT_COPTIC = HB_TAG ('C','o','p','t'), 194 HB_SCRIPT_CYRILLIC = HB_TAG ('C','y','r','l'), 195 HB_SCRIPT_DEVANAGARI = HB_TAG ('D','e','v','a'), 196 HB_SCRIPT_GEORGIAN = HB_TAG ('G','e','o','r'), 197 HB_SCRIPT_GREEK = HB_TAG ('G','r','e','k'), 198 HB_SCRIPT_GUJARATI = HB_TAG ('G','u','j','r'), 199 HB_SCRIPT_GURMUKHI = HB_TAG ('G','u','r','u'), 200 HB_SCRIPT_HANGUL = HB_TAG ('H','a','n','g'), 201 HB_SCRIPT_HAN = HB_TAG ('H','a','n','i'), 202 HB_SCRIPT_HEBREW = HB_TAG ('H','e','b','r'), 203 HB_SCRIPT_HIRAGANA = HB_TAG ('H','i','r','a'), 204 HB_SCRIPT_INHERITED = HB_TAG ('Z','i','n','h'), 205 HB_SCRIPT_KANNADA = HB_TAG ('K','n','d','a'), 206 HB_SCRIPT_KATAKANA = HB_TAG ('K','a','n','a'), 207 HB_SCRIPT_LAO = HB_TAG ('L','a','o','o'), 208 HB_SCRIPT_LATIN = HB_TAG ('L','a','t','n'), 209 HB_SCRIPT_MALAYALAM = HB_TAG ('M','l','y','m'), 210 HB_SCRIPT_MONGOLIAN = HB_TAG ('M','o','n','g'), 211 HB_SCRIPT_OGHAM = HB_TAG ('O','g','a','m'), 212 HB_SCRIPT_ORIYA = HB_TAG ('O','r','y','a'), 213 HB_SCRIPT_RUNIC = HB_TAG ('R','u','n','r'), 214 HB_SCRIPT_SYRIAC = HB_TAG ('S','y','r','c'), 215 HB_SCRIPT_TAMIL = HB_TAG ('T','a','m','l'), 216 HB_SCRIPT_TELUGU = HB_TAG ('T','e','l','u'), 217 HB_SCRIPT_THAI = HB_TAG ('T','h','a','i'), 218 HB_SCRIPT_YI = HB_TAG ('Y','i','i','i'), 219 220 /* Unicode-2.0 additions */ 221 HB_SCRIPT_TIBETAN = HB_TAG ('T','i','b','t'), 222 223 /* Unicode-3.0 additions */ 224 HB_SCRIPT_ETHIOPIC = HB_TAG ('E','t','h','i'), 225 HB_SCRIPT_KHMER = HB_TAG ('K','h','m','r'), 226 HB_SCRIPT_MYANMAR = HB_TAG ('M','y','m','r'), 227 HB_SCRIPT_SINHALA = HB_TAG ('S','i','n','h'), 228 HB_SCRIPT_THAANA = HB_TAG ('T','h','a','a'), 229 230 /* Unicode-3.1 additions */ 231 HB_SCRIPT_DESERET = HB_TAG ('D','s','r','t'), 232 HB_SCRIPT_GOTHIC = HB_TAG ('G','o','t','h'), 233 HB_SCRIPT_OLD_ITALIC = HB_TAG ('I','t','a','l'), 234 235 /* Unicode-3.2 additions */ 236 HB_SCRIPT_BUHID = HB_TAG ('B','u','h','d'), 237 HB_SCRIPT_HANUNOO = HB_TAG ('H','a','n','o'), 238 HB_SCRIPT_TAGALOG = HB_TAG ('T','g','l','g'), 239 HB_SCRIPT_TAGBANWA = HB_TAG ('T','a','g','b'), 240 241 /* Unicode-4.0 additions */ 242 HB_SCRIPT_BRAILLE = HB_TAG ('B','r','a','i'), 243 HB_SCRIPT_CYPRIOT = HB_TAG ('C','p','r','t'), 244 HB_SCRIPT_LIMBU = HB_TAG ('L','i','m','b'), 245 HB_SCRIPT_LINEAR_B = HB_TAG ('L','i','n','b'), 246 HB_SCRIPT_OSMANYA = HB_TAG ('O','s','m','a'), 247 HB_SCRIPT_SHAVIAN = HB_TAG ('S','h','a','w'), 248 HB_SCRIPT_TAI_LE = HB_TAG ('T','a','l','e'), 249 HB_SCRIPT_UGARITIC = HB_TAG ('U','g','a','r'), 250 251 /* Unicode-4.1 additions */ 252 HB_SCRIPT_BUGINESE = HB_TAG ('B','u','g','i'), 253 HB_SCRIPT_GLAGOLITIC = HB_TAG ('G','l','a','g'), 254 HB_SCRIPT_KHAROSHTHI = HB_TAG ('K','h','a','r'), 255 HB_SCRIPT_NEW_TAI_LUE = HB_TAG ('T','a','l','u'), 256 HB_SCRIPT_OLD_PERSIAN = HB_TAG ('X','p','e','o'), 257 HB_SCRIPT_SYLOTI_NAGRI = HB_TAG ('S','y','l','o'), 258 HB_SCRIPT_TIFINAGH = HB_TAG ('T','f','n','g'), 259 260 /* Unicode-5.0 additions */ 261 HB_SCRIPT_BALINESE = HB_TAG ('B','a','l','i'), 262 HB_SCRIPT_CUNEIFORM = HB_TAG ('X','s','u','x'), 263 HB_SCRIPT_NKO = HB_TAG ('N','k','o','o'), 264 HB_SCRIPT_PHAGS_PA = HB_TAG ('P','h','a','g'), 265 HB_SCRIPT_PHOENICIAN = HB_TAG ('P','h','n','x'), 266 HB_SCRIPT_UNKNOWN = HB_TAG ('Z','z','z','z'), 267 268 /* Unicode-5.1 additions */ 269 HB_SCRIPT_CARIAN = HB_TAG ('C','a','r','i'), 270 HB_SCRIPT_CHAM = HB_TAG ('C','h','a','m'), 271 HB_SCRIPT_KAYAH_LI = HB_TAG ('K','a','l','i'), 272 HB_SCRIPT_LEPCHA = HB_TAG ('L','e','p','c'), 273 HB_SCRIPT_LYCIAN = HB_TAG ('L','y','c','i'), 274 HB_SCRIPT_LYDIAN = HB_TAG ('L','y','d','i'), 275 HB_SCRIPT_OL_CHIKI = HB_TAG ('O','l','c','k'), 276 HB_SCRIPT_REJANG = HB_TAG ('R','j','n','g'), 277 HB_SCRIPT_SAURASHTRA = HB_TAG ('S','a','u','r'), 278 HB_SCRIPT_SUNDANESE = HB_TAG ('S','u','n','d'), 279 HB_SCRIPT_VAI = HB_TAG ('V','a','i','i'), 280 281 /* Unicode-5.2 additions */ 282 HB_SCRIPT_AVESTAN = HB_TAG ('A','v','s','t'), 283 HB_SCRIPT_BAMUM = HB_TAG ('B','a','m','u'), 284 HB_SCRIPT_EGYPTIAN_HIEROGLYPHS = HB_TAG ('E','g','y','p'), 285 HB_SCRIPT_IMPERIAL_ARAMAIC = HB_TAG ('A','r','m','i'), 286 HB_SCRIPT_INSCRIPTIONAL_PAHLAVI = HB_TAG ('P','h','l','i'), 287 HB_SCRIPT_INSCRIPTIONAL_PARTHIAN = HB_TAG ('P','r','t','i'), 288 HB_SCRIPT_JAVANESE = HB_TAG ('J','a','v','a'), 289 HB_SCRIPT_KAITHI = HB_TAG ('K','t','h','i'), 290 HB_SCRIPT_LISU = HB_TAG ('L','i','s','u'), 291 HB_SCRIPT_MEETEI_MAYEK = HB_TAG ('M','t','e','i'), 292 HB_SCRIPT_OLD_SOUTH_ARABIAN = HB_TAG ('S','a','r','b'), 293 HB_SCRIPT_OLD_TURKIC = HB_TAG ('O','r','k','h'), 294 HB_SCRIPT_SAMARITAN = HB_TAG ('S','a','m','r'), 295 HB_SCRIPT_TAI_THAM = HB_TAG ('L','a','n','a'), 296 HB_SCRIPT_TAI_VIET = HB_TAG ('T','a','v','t'), 297 298 /* Unicode-6.0 additions */ 299 HB_SCRIPT_BATAK = HB_TAG ('B','a','t','k'), 300 HB_SCRIPT_BRAHMI = HB_TAG ('B','r','a','h'), 301 HB_SCRIPT_MANDAIC = HB_TAG ('M','a','n','d'), 302 303 /* Unicode-6.1 additions */ 304 HB_SCRIPT_CHAKMA = HB_TAG ('C','a','k','m'), 305 HB_SCRIPT_MEROITIC_CURSIVE = HB_TAG ('M','e','r','c'), 306 HB_SCRIPT_MEROITIC_HIEROGLYPHS = HB_TAG ('M','e','r','o'), 307 HB_SCRIPT_MIAO = HB_TAG ('P','l','r','d'), 308 HB_SCRIPT_SHARADA = HB_TAG ('S','h','r','d'), 309 HB_SCRIPT_SORA_SOMPENG = HB_TAG ('S','o','r','a'), 310 HB_SCRIPT_TAKRI = HB_TAG ('T','a','k','r'), 311 312 /* No script set */ 313 HB_SCRIPT_INVALID = HB_TAG_NONE 314} hb_script_t; 315 316 317/* Script functions */ 318 319hb_script_t 320hb_script_from_iso15924_tag (hb_tag_t tag); 321 322/* suger for tag_from_string() then script_from_iso15924_tag */ 323/* len=-1 means s is NUL-terminated */ 324hb_script_t 325hb_script_from_string (const char *s, int len); 326 327hb_tag_t 328hb_script_to_iso15924_tag (hb_script_t script); 329 330hb_direction_t 331hb_script_get_horizontal_direction (hb_script_t script); 332 333 334/* User data */ 335 336typedef struct _hb_user_data_key_t { 337 /*< private >*/ 338 char unused; 339} hb_user_data_key_t; 340 341typedef void (*hb_destroy_func_t) (void *user_data); 342 343 344HB_END_DECLS 345 346#endif /* HB_COMMON_H */ 347