2 * Copyright (C) 2009,2010 Red Hat, Inc.
4 * This is part of HarfBuzz, a text shaping library.
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
24 * Red Hat Author(s): Behdad Esfahbod
27 #include "hb-private.h"
35 hb_tag_from_string (const char *s)
43 for (i = 0; i < 4 && s[i]; i++)
48 return HB_TAG_CHAR4 (tag);
54 struct _hb_language_t {
58 static const char canon_map[256] = {
59 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
60 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
61 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '-', 0, 0,
62 '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 0, 0, 0, 0, 0, 0,
63 '-', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
64 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 0, 0, 0, 0, '-',
65 0, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
66 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 0, 0, 0, 0, 0
70 lang_equal (const void *v1,
73 const unsigned char *p1 = v1;
74 const unsigned char *p2 = v2;
76 while (canon_map[*p1] && canon_map[*p1] == canon_map[*p2])
81 return (canon_map[*p1] == canon_map[*p2]);
86 lang_hash (const void *key)
88 const unsigned char *p = key;
92 h = (h << 5) - h + canon_map[*p];
102 hb_language_from_string (const char *str)
104 static unsigned int num_langs;
105 static unsigned int num_alloced;
106 static hb_language_t *langs;
110 /* TODO Use a hash table or something */
115 for (i = 0; i < num_langs; i++)
116 if (lang_equal (str, langs[i]->s))
119 if (unlikely (num_langs == num_alloced)) {
120 unsigned int new_alloced = 2 * (8 + num_alloced);
121 hb_language_t *new_langs = realloc (langs, new_alloced * sizeof (langs[0]));
124 num_alloced = new_alloced;
128 langs[i] = (hb_language_t) strdup (str);
129 for (p = (unsigned char *) langs[i]->s; *p; p++)
138 hb_language_to_string (hb_language_t language)
146 static const hb_tag_t script_to_iso15924_tag[] =
148 HB_TAG('Z','y','y','y'), /* HB_SCRIPT_COMMON */
149 HB_TAG('Q','a','a','i'), /* HB_SCRIPT_INHERITED */
150 HB_TAG('A','r','a','b'), /* HB_SCRIPT_ARABIC */
151 HB_TAG('A','r','m','n'), /* HB_SCRIPT_ARMENIAN */
152 HB_TAG('B','e','n','g'), /* HB_SCRIPT_BENGALI */
153 HB_TAG('B','o','p','o'), /* HB_SCRIPT_BOPOMOFO */
154 HB_TAG('C','h','e','r'), /* HB_SCRIPT_CHEROKEE */
155 HB_TAG('Q','a','a','c'), /* HB_SCRIPT_COPTIC */
156 HB_TAG('C','y','r','l'), /* HB_SCRIPT_CYRILLIC */
157 HB_TAG('D','s','r','t'), /* HB_SCRIPT_DESERET */
158 HB_TAG('D','e','v','a'), /* HB_SCRIPT_DEVANAGARI */
159 HB_TAG('E','t','h','i'), /* HB_SCRIPT_ETHIOPIC */
160 HB_TAG('G','e','o','r'), /* HB_SCRIPT_GEORGIAN */
161 HB_TAG('G','o','t','h'), /* HB_SCRIPT_GOTHIC */
162 HB_TAG('G','r','e','k'), /* HB_SCRIPT_GREEK */
163 HB_TAG('G','u','j','r'), /* HB_SCRIPT_GUJARATI */
164 HB_TAG('G','u','r','u'), /* HB_SCRIPT_GURMUKHI */
165 HB_TAG('H','a','n','i'), /* HB_SCRIPT_HAN */
166 HB_TAG('H','a','n','g'), /* HB_SCRIPT_HANGUL */
167 HB_TAG('H','e','b','r'), /* HB_SCRIPT_HEBREW */
168 HB_TAG('H','i','r','a'), /* HB_SCRIPT_HIRAGANA */
169 HB_TAG('K','n','d','a'), /* HB_SCRIPT_KANNADA */
170 HB_TAG('K','a','n','a'), /* HB_SCRIPT_KATAKANA */
171 HB_TAG('K','h','m','r'), /* HB_SCRIPT_KHMER */
172 HB_TAG('L','a','o','o'), /* HB_SCRIPT_LAO */
173 HB_TAG('L','a','t','n'), /* HB_SCRIPT_LATIN */
174 HB_TAG('M','l','y','m'), /* HB_SCRIPT_MALAYALAM */
175 HB_TAG('M','o','n','g'), /* HB_SCRIPT_MONGOLIAN */
176 HB_TAG('M','y','m','r'), /* HB_SCRIPT_MYANMAR */
177 HB_TAG('O','g','a','m'), /* HB_SCRIPT_OGHAM */
178 HB_TAG('I','t','a','l'), /* HB_SCRIPT_OLD_ITALIC */
179 HB_TAG('O','r','y','a'), /* HB_SCRIPT_ORIYA */
180 HB_TAG('R','u','n','r'), /* HB_SCRIPT_RUNIC */
181 HB_TAG('S','i','n','h'), /* HB_SCRIPT_SINHALA */
182 HB_TAG('S','y','r','c'), /* HB_SCRIPT_SYRIAC */
183 HB_TAG('T','a','m','l'), /* HB_SCRIPT_TAMIL */
184 HB_TAG('T','e','l','u'), /* HB_SCRIPT_TELUGU */
185 HB_TAG('T','h','a','a'), /* HB_SCRIPT_THAANA */
186 HB_TAG('T','h','a','i'), /* HB_SCRIPT_THAI */
187 HB_TAG('T','i','b','t'), /* HB_SCRIPT_TIBETAN */
188 HB_TAG('C','a','n','s'), /* HB_SCRIPT_CANADIAN_ABORIGINAL */
189 HB_TAG('Y','i','i','i'), /* HB_SCRIPT_YI */
190 HB_TAG('T','g','l','g'), /* HB_SCRIPT_TAGALOG */
191 HB_TAG('H','a','n','o'), /* HB_SCRIPT_HANUNOO */
192 HB_TAG('B','u','h','d'), /* HB_SCRIPT_BUHID */
193 HB_TAG('T','a','g','b'), /* HB_SCRIPT_TAGBANWA */
195 /* Unicode-4.0 additions */
196 HB_TAG('B','r','a','i'), /* HB_SCRIPT_BRAILLE */
197 HB_TAG('C','p','r','t'), /* HB_SCRIPT_CYPRIOT */
198 HB_TAG('L','i','m','b'), /* HB_SCRIPT_LIMBU */
199 HB_TAG('O','s','m','a'), /* HB_SCRIPT_OSMANYA */
200 HB_TAG('S','h','a','w'), /* HB_SCRIPT_SHAVIAN */
201 HB_TAG('L','i','n','b'), /* HB_SCRIPT_LINEAR_B */
202 HB_TAG('T','a','l','e'), /* HB_SCRIPT_TAI_LE */
203 HB_TAG('U','g','a','r'), /* HB_SCRIPT_UGARITIC */
205 /* Unicode-4.1 additions */
206 HB_TAG('T','a','l','u'), /* HB_SCRIPT_NEW_TAI_LUE */
207 HB_TAG('B','u','g','i'), /* HB_SCRIPT_BUGINESE */
208 HB_TAG('G','l','a','g'), /* HB_SCRIPT_GLAGOLITIC */
209 HB_TAG('T','f','n','g'), /* HB_SCRIPT_TIFINAGH */
210 HB_TAG('S','y','l','o'), /* HB_SCRIPT_SYLOTI_NAGRI */
211 HB_TAG('X','p','e','o'), /* HB_SCRIPT_OLD_PERSIAN */
212 HB_TAG('K','h','a','r'), /* HB_SCRIPT_KHAROSHTHI */
214 /* Unicode-5.0 additions */
215 HB_TAG('Z','z','z','z'), /* HB_SCRIPT_UNKNOWN */
216 HB_TAG('B','a','l','i'), /* HB_SCRIPT_BALINESE */
217 HB_TAG('X','s','u','x'), /* HB_SCRIPT_CUNEIFORM */
218 HB_TAG('P','h','n','x'), /* HB_SCRIPT_PHOENICIAN */
219 HB_TAG('P','h','a','g'), /* HB_SCRIPT_PHAGS_PA */
220 HB_TAG('N','k','o','o'), /* HB_SCRIPT_NKO */
222 /* Unicode-5.1 additions */
223 HB_TAG('K','a','l','i'), /* HB_SCRIPT_KAYAH_LI */
224 HB_TAG('L','e','p','c'), /* HB_SCRIPT_LEPCHA */
225 HB_TAG('R','j','n','g'), /* HB_SCRIPT_REJANG */
226 HB_TAG('S','u','n','d'), /* HB_SCRIPT_SUNDANESE */
227 HB_TAG('S','a','u','r'), /* HB_SCRIPT_SAURASHTRA */
228 HB_TAG('C','h','a','m'), /* HB_SCRIPT_CHAM */
229 HB_TAG('O','l','c','k'), /* HB_SCRIPT_OL_CHIKI */
230 HB_TAG('V','a','i','i'), /* HB_SCRIPT_VAI */
231 HB_TAG('C','a','r','i'), /* HB_SCRIPT_CARIAN */
232 HB_TAG('L','y','c','i'), /* HB_SCRIPT_LYCIAN */
233 HB_TAG('L','y','d','i'), /* HB_SCRIPT_LYDIAN */
235 /* Unicode-5.2 additions */
236 HB_TAG('A','v','s','t'), /* HB_SCRIPT_AVESTAN */
237 HB_TAG('B','a','m','u'), /* HB_SCRIPT_BAMUM */
238 HB_TAG('E','g','y','p'), /* HB_SCRIPT_EGYPTIAN_HIEROGLYPHS */
239 HB_TAG('A','r','m','i'), /* HB_SCRIPT_IMPERIAL_ARAMAIC */
240 HB_TAG('P','h','l','i'), /* HB_SCRIPT_INSCRIPTIONAL_PAHLAVI */
241 HB_TAG('P','r','t','i'), /* HB_SCRIPT_INSCRIPTIONAL_PARTHIAN */
242 HB_TAG('J','a','v','a'), /* HB_SCRIPT_JAVANESE */
243 HB_TAG('K','t','h','i'), /* HB_SCRIPT_KAITHI */
244 HB_TAG('L','i','s','u'), /* HB_SCRIPT_LISU */
245 HB_TAG('M','t','e','i'), /* HB_SCRIPT_MEETEI_MAYEK */
246 HB_TAG('S','a','r','b'), /* HB_SCRIPT_OLD_SOUTH_ARABIAN */
247 HB_TAG('O','r','k','h'), /* HB_SCRIPT_OLD_TURKIC */
248 HB_TAG('S','a','m','r'), /* HB_SCRIPT_SAMARITAN */
249 HB_TAG('L','a','n','a'), /* HB_SCRIPT_TAI_THAM */
250 HB_TAG('T','a','v','t'), /* HB_SCRIPT_TAI_VIET */
252 /* Unicode-6.0 additions */
253 HB_TAG('B','a','t','k'), /* HB_SCRIPT_BATAK */
254 HB_TAG('B','r','a','h'), /* HB_SCRIPT_BRAHMI */
255 HB_TAG('M','a','n','d') /* HB_SCRIPT_MANDAIC */
258 struct tag_script_pair {
262 static const struct tag_script_pair script_from_iso15924_tag[] =
264 {HB_TAG('A','r','a','b'), HB_SCRIPT_ARABIC},
265 {HB_TAG('A','r','m','i'), HB_SCRIPT_IMPERIAL_ARAMAIC},
266 {HB_TAG('A','r','m','n'), HB_SCRIPT_ARMENIAN},
267 {HB_TAG('A','v','s','t'), HB_SCRIPT_AVESTAN},
268 {HB_TAG('B','a','l','i'), HB_SCRIPT_BALINESE},
269 {HB_TAG('B','a','m','u'), HB_SCRIPT_BAMUM},
270 {HB_TAG('B','a','t','k'), HB_SCRIPT_BATAK},
271 {HB_TAG('B','e','n','g'), HB_SCRIPT_BENGALI},
272 {HB_TAG('B','o','p','o'), HB_SCRIPT_BOPOMOFO},
273 {HB_TAG('B','r','a','h'), HB_SCRIPT_BRAHMI},
274 {HB_TAG('B','r','a','i'), HB_SCRIPT_BRAILLE},
275 {HB_TAG('B','u','g','i'), HB_SCRIPT_BUGINESE},
276 {HB_TAG('B','u','h','d'), HB_SCRIPT_BUHID},
277 {HB_TAG('C','a','n','s'), HB_SCRIPT_CANADIAN_ABORIGINAL},
278 {HB_TAG('C','a','r','i'), HB_SCRIPT_CARIAN},
279 {HB_TAG('C','h','a','m'), HB_SCRIPT_CHAM},
280 {HB_TAG('C','h','e','r'), HB_SCRIPT_CHEROKEE},
281 {HB_TAG('C','p','r','t'), HB_SCRIPT_CYPRIOT},
282 {HB_TAG('C','y','r','l'), HB_SCRIPT_CYRILLIC},
283 {HB_TAG('C','y','r','s'), HB_SCRIPT_CYRILLIC},
284 {HB_TAG('D','e','v','a'), HB_SCRIPT_DEVANAGARI},
285 {HB_TAG('D','s','r','t'), HB_SCRIPT_DESERET},
286 {HB_TAG('E','g','y','p'), HB_SCRIPT_EGYPTIAN_HIEROGLYPHS},
287 {HB_TAG('E','t','h','i'), HB_SCRIPT_ETHIOPIC},
288 {HB_TAG('G','e','o','a'), HB_SCRIPT_GEORGIAN},
289 {HB_TAG('G','e','o','n'), HB_SCRIPT_GEORGIAN},
290 {HB_TAG('G','e','o','r'), HB_SCRIPT_GEORGIAN},
291 {HB_TAG('G','l','a','g'), HB_SCRIPT_GLAGOLITIC},
292 {HB_TAG('G','o','t','h'), HB_SCRIPT_GOTHIC},
293 {HB_TAG('G','r','e','k'), HB_SCRIPT_GREEK},
294 {HB_TAG('G','u','j','r'), HB_SCRIPT_GUJARATI},
295 {HB_TAG('G','u','r','u'), HB_SCRIPT_GURMUKHI},
296 {HB_TAG('H','a','n','g'), HB_SCRIPT_HANGUL},
297 {HB_TAG('H','a','n','i'), HB_SCRIPT_HAN},
298 {HB_TAG('H','a','n','o'), HB_SCRIPT_HANUNOO},
299 {HB_TAG('H','e','b','r'), HB_SCRIPT_HEBREW},
300 {HB_TAG('H','i','r','a'), HB_SCRIPT_HIRAGANA},
301 {HB_TAG('I','t','a','l'), HB_SCRIPT_OLD_ITALIC},
302 {HB_TAG('J','a','v','a'), HB_SCRIPT_JAVANESE},
303 {HB_TAG('K','a','l','i'), HB_SCRIPT_KAYAH_LI},
304 {HB_TAG('K','a','n','a'), HB_SCRIPT_KATAKANA},
305 {HB_TAG('K','h','a','r'), HB_SCRIPT_KHAROSHTHI},
306 {HB_TAG('K','h','m','r'), HB_SCRIPT_KHMER},
307 {HB_TAG('K','n','d','a'), HB_SCRIPT_KANNADA},
308 {HB_TAG('K','t','h','i'), HB_SCRIPT_KAITHI},
309 {HB_TAG('L','a','n','a'), HB_SCRIPT_TAI_THAM},
310 {HB_TAG('L','a','o','o'), HB_SCRIPT_LAO},
311 {HB_TAG('L','a','t','f'), HB_SCRIPT_LATIN},
312 {HB_TAG('L','a','t','g'), HB_SCRIPT_LATIN},
313 {HB_TAG('L','a','t','n'), HB_SCRIPT_LATIN},
314 {HB_TAG('L','e','p','c'), HB_SCRIPT_LEPCHA},
315 {HB_TAG('L','i','m','b'), HB_SCRIPT_LIMBU},
316 {HB_TAG('L','i','n','b'), HB_SCRIPT_LINEAR_B},
317 {HB_TAG('L','i','s','u'), HB_SCRIPT_LISU},
318 {HB_TAG('L','y','c','i'), HB_SCRIPT_LYCIAN},
319 {HB_TAG('L','y','d','i'), HB_SCRIPT_LYDIAN},
320 {HB_TAG('M','a','n','d'), HB_SCRIPT_MANDAIC},
321 {HB_TAG('M','l','y','m'), HB_SCRIPT_MALAYALAM},
322 {HB_TAG('M','o','n','g'), HB_SCRIPT_MONGOLIAN},
323 {HB_TAG('M','t','e','i'), HB_SCRIPT_MEETEI_MAYEK},
324 {HB_TAG('M','y','m','r'), HB_SCRIPT_MYANMAR},
325 {HB_TAG('N','k','o','o'), HB_SCRIPT_NKO},
326 {HB_TAG('O','g','a','m'), HB_SCRIPT_OGHAM},
327 {HB_TAG('O','l','c','k'), HB_SCRIPT_OL_CHIKI},
328 {HB_TAG('O','r','k','h'), HB_SCRIPT_OLD_TURKIC},
329 {HB_TAG('O','r','y','a'), HB_SCRIPT_ORIYA},
330 {HB_TAG('O','s','m','a'), HB_SCRIPT_OSMANYA},
331 {HB_TAG('P','h','a','g'), HB_SCRIPT_PHAGS_PA},
332 {HB_TAG('P','h','l','i'), HB_SCRIPT_INSCRIPTIONAL_PAHLAVI},
333 {HB_TAG('P','h','n','x'), HB_SCRIPT_PHOENICIAN},
334 {HB_TAG('P','r','t','i'), HB_SCRIPT_INSCRIPTIONAL_PARTHIAN},
335 {HB_TAG('Q','a','a','c'), HB_SCRIPT_COPTIC},
336 {HB_TAG('Q','a','a','i'), HB_SCRIPT_INHERITED},
337 {HB_TAG('R','j','n','g'), HB_SCRIPT_REJANG},
338 {HB_TAG('R','u','n','r'), HB_SCRIPT_RUNIC},
339 {HB_TAG('S','a','m','r'), HB_SCRIPT_SAMARITAN},
340 {HB_TAG('S','a','r','b'), HB_SCRIPT_OLD_SOUTH_ARABIAN},
341 {HB_TAG('S','a','u','r'), HB_SCRIPT_SAURASHTRA},
342 {HB_TAG('S','h','a','w'), HB_SCRIPT_SHAVIAN},
343 {HB_TAG('S','i','n','h'), HB_SCRIPT_SINHALA},
344 {HB_TAG('S','u','n','d'), HB_SCRIPT_SUNDANESE},
345 {HB_TAG('S','y','l','o'), HB_SCRIPT_SYLOTI_NAGRI},
346 {HB_TAG('S','y','r','c'), HB_SCRIPT_SYRIAC},
347 {HB_TAG('S','y','r','e'), HB_SCRIPT_SYRIAC},
348 {HB_TAG('S','y','r','n'), HB_SCRIPT_SYRIAC},
349 {HB_TAG('T','a','g','b'), HB_SCRIPT_TAGBANWA},
350 {HB_TAG('T','a','l','e'), HB_SCRIPT_TAI_LE},
351 {HB_TAG('T','a','l','u'), HB_SCRIPT_NEW_TAI_LUE},
352 {HB_TAG('T','a','m','l'), HB_SCRIPT_TAMIL},
353 {HB_TAG('T','a','v','t'), HB_SCRIPT_TAI_VIET},
354 {HB_TAG('T','e','l','u'), HB_SCRIPT_TELUGU},
355 {HB_TAG('T','f','n','g'), HB_SCRIPT_TIFINAGH},
356 {HB_TAG('T','g','l','g'), HB_SCRIPT_TAGALOG},
357 {HB_TAG('T','h','a','a'), HB_SCRIPT_THAANA},
358 {HB_TAG('T','h','a','i'), HB_SCRIPT_THAI},
359 {HB_TAG('T','i','b','t'), HB_SCRIPT_TIBETAN},
360 {HB_TAG('U','g','a','r'), HB_SCRIPT_UGARITIC},
361 {HB_TAG('V','a','i','i'), HB_SCRIPT_VAI},
362 {HB_TAG('X','p','e','o'), HB_SCRIPT_OLD_PERSIAN},
363 {HB_TAG('X','s','u','x'), HB_SCRIPT_CUNEIFORM},
364 {HB_TAG('Y','i','i','i'), HB_SCRIPT_YI},
365 {HB_TAG('Z','y','y','y'), HB_SCRIPT_COMMON},
366 {HB_TAG('Z','z','z','z'), HB_SCRIPT_UNKNOWN}
370 _tag_cmp (hb_tag_t *pa, hb_tag_t *pb)
372 hb_tag_t a = *pa, b = *pb;
373 return a < b ? -1 : a == b ? 0 : +1;
378 hb_script_from_iso15924_tag (hb_tag_t tag)
380 const struct tag_script_pair *pair;
382 /* Be lenient, adjust case (one capital letter followed by three small letters) */
383 tag = (tag & 0xDFDFDFDF) | 0x00202020;
385 pair = (const struct tag_script_pair *) bsearch (&tag,
386 script_from_iso15924_tag,
387 ARRAY_LENGTH (script_from_iso15924_tag),
388 sizeof (script_from_iso15924_tag[0]),
389 (hb_compare_func_t) _tag_cmp);
394 /* If it looks right, just use the tag as a script */
395 if (((uint32_t) tag & 0xE0E0E0E0) == 0x40606060)
396 return (hb_script_t) tag;
398 /* Otherwise, return unknown */
399 return HB_SCRIPT_UNKNOWN;
403 hb_script_from_string (const char *s)
405 return hb_script_from_iso15924_tag (hb_tag_from_string (s));
409 hb_script_to_iso15924_tag (hb_script_t script)
411 if (likely ((unsigned int) script < ARRAY_LENGTH (script_to_iso15924_tag)))
412 return script_to_iso15924_tag[script];
414 /* if script is of the right shape (one capital letter followed by three small letters),
416 if (((uint32_t) script & 0xE0E0E0E0) == 0x40606060)
417 return (hb_tag_t) script;
419 /* Otherwise, we don't know what that is */
420 return script_to_iso15924_tag[HB_SCRIPT_UNKNOWN];
424 #define LTR HB_DIRECTION_LTR
425 #define RTL HB_DIRECTION_RTL
426 const hb_direction_t horiz_dir[] =
436 LTR, /* Cyrl (Cyrs) */
440 LTR, /* Geor (Geon, Geoa) */
453 LTR, /* Latn (Latf, Latg) */
462 RTL, /* Syrc (Syrj, Syrn, Syre) */
475 /* Unicode-4.0 additions */
485 /* Unicode-4.1 additions */
494 /* Unicode-5.0 additions */
502 /* Unicode-5.1 additions */
515 /* Unicode-5.2 additions */
532 /* Unicode-6.0 additions */
541 hb_script_get_horizontal_direction (hb_script_t script)
543 if (unlikely ((unsigned int) script >= ARRAY_LENGTH (horiz_dir)))
544 return HB_DIRECTION_LTR;
546 return horiz_dir[script];