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Side by Side Diff: third_party/harfbuzz-ng/src/hb-ot-tag.c

Issue 6052008: harfbuzz: check in harfbuzz-ng, add gyp define to use it (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: fix Created 9 years, 11 months ago
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1 /*
2 * Copyright (C) 2009 Red Hat, Inc.
3 *
4 * This is part of HarfBuzz, a text shaping library.
5 *
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.
11 *
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
16 * DAMAGE.
17 *
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.
23 *
24 * Red Hat Author(s): Behdad Esfahbod
25 */
26
27 #include "hb-private.h"
28 #include "hb-ot.h"
29
30 #include <string.h>
31
32 HB_BEGIN_DECLS
33
34
35 /*
36 * Complete list at:
37 * http://www.microsoft.com/typography/otspec/scripttags.htm
38 */
39 static const hb_tag_t ot_scripts[][3] = {
40 {HB_TAG('D','F','L','T')}, /* HB_SCRIPT_COMMON */
41 {HB_TAG('D','F','L','T')}, /* HB_SCRIPT_INHERITED */
42 {HB_TAG('a','r','a','b')}, /* HB_SCRIPT_ARABIC */
43 {HB_TAG('a','r','m','n')}, /* HB_SCRIPT_ARMENIAN */
44 {HB_TAG('b','n','g','2'), HB_TAG('b','e','n','g')}, /* HB_SCRIPT_BENGALI */
45 {HB_TAG('b','o','p','o')}, /* HB_SCRIPT_BOPOMOFO */
46 {HB_TAG('c','h','e','r')}, /* HB_SCRIPT_CHEROKEE */
47 {HB_TAG('c','o','p','t')}, /* HB_SCRIPT_COPTIC */
48 {HB_TAG('c','y','r','l')}, /* HB_SCRIPT_CYRILLIC */
49 {HB_TAG('d','s','r','t')}, /* HB_SCRIPT_DESERET */
50 {HB_TAG('d','e','v','2'), HB_TAG('d','e','v','a')}, /* HB_SCRIPT_DEVANAGARI */
51 {HB_TAG('e','t','h','i')}, /* HB_SCRIPT_ETHIOPIC */
52 {HB_TAG('g','e','o','r')}, /* HB_SCRIPT_GEORGIAN */
53 {HB_TAG('g','o','t','h')}, /* HB_SCRIPT_GOTHIC */
54 {HB_TAG('g','r','e','k')}, /* HB_SCRIPT_GREEK */
55 {HB_TAG('g','j','r','2'), HB_TAG('g','u','j','r')}, /* HB_SCRIPT_GUJARATI */
56 {HB_TAG('g','u','r','2'), HB_TAG('g','u','r','u')}, /* HB_SCRIPT_GURMUKHI */
57 {HB_TAG('h','a','n','i')}, /* HB_SCRIPT_HAN */
58 {HB_TAG('h','a','n','g')}, /* HB_SCRIPT_HANGUL */
59 {HB_TAG('h','e','b','r')}, /* HB_SCRIPT_HEBREW */
60 {HB_TAG('k','a','n','a')}, /* HB_SCRIPT_HIRAGANA */
61 {HB_TAG('k','n','d','2'), HB_TAG('k','n','d','a')}, /* HB_SCRIPT_KANNADA */
62 {HB_TAG('k','a','n','a')}, /* HB_SCRIPT_KATAKANA */
63 {HB_TAG('k','h','m','r')}, /* HB_SCRIPT_KHMER */
64 {HB_TAG('l','a','o',' ')}, /* HB_SCRIPT_LAO */
65 {HB_TAG('l','a','t','n')}, /* HB_SCRIPT_LATIN */
66 {HB_TAG('m','l','m','2'), HB_TAG('m','l','y','m')}, /* HB_SCRIPT_MALAYALAM * /
67 {HB_TAG('m','o','n','g')}, /* HB_SCRIPT_MONGOLIAN */
68 {HB_TAG('m','y','m','r')}, /* HB_SCRIPT_MYANMAR */
69 {HB_TAG('o','g','a','m')}, /* HB_SCRIPT_OGHAM */
70 {HB_TAG('i','t','a','l')}, /* HB_SCRIPT_OLD_ITALIC */
71 {HB_TAG('o','r','y','2'), HB_TAG('o','r','y','a')}, /* HB_SCRIPT_ORIYA */
72 {HB_TAG('r','u','n','r')}, /* HB_SCRIPT_RUNIC */
73 {HB_TAG('s','i','n','h')}, /* HB_SCRIPT_SINHALA */
74 {HB_TAG('s','y','r','c')}, /* HB_SCRIPT_SYRIAC */
75 {HB_TAG('t','m','l','2'), HB_TAG('t','a','m','l')}, /* HB_SCRIPT_TAMIL */
76 {HB_TAG('t','e','l','2'), HB_TAG('t','e','l','u')}, /* HB_SCRIPT_TELUGU */
77 {HB_TAG('t','h','a','a')}, /* HB_SCRIPT_THAANA */
78 {HB_TAG('t','h','a','i')}, /* HB_SCRIPT_THAI */
79 {HB_TAG('t','i','b','t')}, /* HB_SCRIPT_TIBETAN */
80 {HB_TAG('c','a','n','s')}, /* HB_SCRIPT_CANADIAN_ABORIGINAL */
81 {HB_TAG('y','i',' ',' ')}, /* HB_SCRIPT_YI */
82 {HB_TAG('t','g','l','g')}, /* HB_SCRIPT_TAGALOG */
83 {HB_TAG('h','a','n','o')}, /* HB_SCRIPT_HANUNOO */
84 {HB_TAG('b','u','h','d')}, /* HB_SCRIPT_BUHID */
85 {HB_TAG('t','a','g','b')}, /* HB_SCRIPT_TAGBANWA */
86
87 /* Unicode-4.0 additions */
88 {HB_TAG('b','r','a','i')}, /* HB_SCRIPT_BRAILLE */
89 {HB_TAG('c','p','r','t')}, /* HB_SCRIPT_CYPRIOT */
90 {HB_TAG('l','i','m','b')}, /* HB_SCRIPT_LIMBU */
91 {HB_TAG('o','s','m','a')}, /* HB_SCRIPT_OSMANYA */
92 {HB_TAG('s','h','a','w')}, /* HB_SCRIPT_SHAVIAN */
93 {HB_TAG('l','i','n','b')}, /* HB_SCRIPT_LINEAR_B */
94 {HB_TAG('t','a','l','e')}, /* HB_SCRIPT_TAI_LE */
95 {HB_TAG('u','g','a','r')}, /* HB_SCRIPT_UGARITIC */
96
97 /* Unicode-4.1 additions */
98 {HB_TAG('t','a','l','u')}, /* HB_SCRIPT_NEW_TAI_LUE */
99 {HB_TAG('b','u','g','i')}, /* HB_SCRIPT_BUGINESE */
100 {HB_TAG('g','l','a','g')}, /* HB_SCRIPT_GLAGOLITIC */
101 {HB_TAG('t','f','n','g')}, /* HB_SCRIPT_TIFINAGH */
102 {HB_TAG('s','y','l','o')}, /* HB_SCRIPT_SYLOTI_NAGRI */
103 {HB_TAG('x','p','e','o')}, /* HB_SCRIPT_OLD_PERSIAN */
104 {HB_TAG('k','h','a','r')}, /* HB_SCRIPT_KHAROSHTHI */
105
106 /* Unicode-5.0 additions */
107 {HB_TAG('D','F','L','T')}, /* HB_SCRIPT_UNKNOWN */
108 {HB_TAG('b','a','l','i')}, /* HB_SCRIPT_BALINESE */
109 {HB_TAG('x','s','u','x')}, /* HB_SCRIPT_CUNEIFORM */
110 {HB_TAG('p','h','n','x')}, /* HB_SCRIPT_PHOENICIAN */
111 {HB_TAG('p','h','a','g')}, /* HB_SCRIPT_PHAGS_PA */
112 {HB_TAG('n','k','o',' ')}, /* HB_SCRIPT_NKO */
113
114 /* Unicode-5.1 additions */
115 {HB_TAG('k','a','l','i')}, /* HB_SCRIPT_KAYAH_LI */
116 {HB_TAG('l','e','p','c')}, /* HB_SCRIPT_LEPCHA */
117 {HB_TAG('r','j','n','g')}, /* HB_SCRIPT_REJANG */
118 {HB_TAG('s','u','n','d')}, /* HB_SCRIPT_SUNDANESE */
119 {HB_TAG('s','a','u','r')}, /* HB_SCRIPT_SAURASHTRA */
120 {HB_TAG('c','h','a','m')}, /* HB_SCRIPT_CHAM */
121 {HB_TAG('o','l','c','k')}, /* HB_SCRIPT_OL_CHIKI */
122 {HB_TAG('v','a','i',' ')}, /* HB_SCRIPT_VAI */
123 {HB_TAG('c','a','r','i')}, /* HB_SCRIPT_CARIAN */
124 {HB_TAG('l','y','c','i')}, /* HB_SCRIPT_LYCIAN */
125 {HB_TAG('l','y','d','i')}, /* HB_SCRIPT_LYDIAN */
126
127 /* Unicode-5.2 additions */
128 {HB_TAG('a','v','s','t')}, /* HB_SCRIPT_AVESTAN */
129 {HB_TAG('b','a','m','u')}, /* HB_SCRIPT_BAMUM */
130 {HB_TAG('e','g','y','p')}, /* HB_SCRIPT_EGYPTIAN_HIEROGLYPHS */
131 {HB_TAG('a','r','m','i')}, /* HB_SCRIPT_IMPERIAL_ARAMAIC */
132 {HB_TAG('p','h','l','i')}, /* HB_SCRIPT_INSCRIPTIONAL_PAHLAVI */
133 {HB_TAG('p','r','t','i')}, /* HB_SCRIPT_INSCRIPTIONAL_PARTHIAN */
134 {HB_TAG('j','a','v','a')}, /* HB_SCRIPT_JAVANESE */
135 {HB_TAG('k','t','h','i')}, /* HB_SCRIPT_KAITHI */
136 {HB_TAG('l','i','s','u')}, /* HB_SCRIPT_LISU */
137 {HB_TAG('m','y','e','i')}, /* HB_SCRIPT_MEETEI_MAYEK */
138 {HB_TAG('s','a','r','b')}, /* HB_SCRIPT_OLD_SOUTH_ARABIAN */
139 {HB_TAG('o','r','k','h')}, /* HB_SCRIPT_OLD_TURKIC */
140 {HB_TAG('s','a','m','r')}, /* HB_SCRIPT_SAMARITAN */
141 {HB_TAG('l','a','n','a')}, /* HB_SCRIPT_TAI_THAM */
142 {HB_TAG('t','a','v','t')}, /* HB_SCRIPT_TAI_VIET */
143
144 /* Unicode-6.0 additions */
145 {HB_TAG('b','a','t','k')}, /* HB_SCRIPT_BATAK */
146 {HB_TAG('b','r','a','h')}, /* HB_SCRIPT_BRAHMI */
147 {HB_TAG('m','a','n','d')} /* HB_SCRIPT_MANDAIC */
148 };
149
150 const hb_tag_t *
151 hb_ot_tags_from_script (hb_script_t script)
152 {
153 static const hb_tag_t def_tag[] = {HB_OT_TAG_DEFAULT_SCRIPT, HB_TAG_NONE};
154
155 if (unlikely ((unsigned int) script >= ARRAY_LENGTH (ot_scripts)))
156 return def_tag;
157
158 return ot_scripts[script];
159 }
160
161 hb_script_t
162 hb_ot_tag_to_script (hb_tag_t tag)
163 {
164 int i;
165
166 for (i = 0; i < ARRAY_LENGTH (ot_scripts); i++) {
167 const hb_tag_t *p;
168 for (p = ot_scripts[i]; *p; p++)
169 if (tag == *p)
170 return i;
171 }
172
173 return HB_SCRIPT_UNKNOWN;
174 }
175
176 typedef struct {
177 char language[6];
178 hb_tag_t tag;
179 } LangTag;
180
181 /*
182 * Complete list at:
183 * http://www.microsoft.com/typography/otspec/languagetags.htm
184 *
185 * Generated by intersecting the OpenType language tag list from
186 * Draft OpenType 1.5 spec, with with the ISO 639-3 codes from
187 * 2008/08/04, matching on name, and finally adjusted manually.
188 *
189 * Many items still missing. Those are commented out at the end.
190 * Keep sorted for bsearch.
191 */
192 static const LangTag ot_languages[] = {
193 {"aa", HB_TAG('A','F','R',' ')}, /* Afar */
194 {"ab", HB_TAG('A','B','K',' ')}, /* Abkhazian */
195 {"abq", HB_TAG('A','B','A',' ')}, /* Abaza */
196 {"ady", HB_TAG('A','D','Y',' ')}, /* Adyghe */
197 {"af", HB_TAG('A','F','K',' ')}, /* Afrikaans */
198 {"aiw", HB_TAG('A','R','I',' ')}, /* Aari */
199 {"am", HB_TAG('A','M','H',' ')}, /* Amharic */
200 {"ar", HB_TAG('A','R','A',' ')}, /* Arabic */
201 {"arn", HB_TAG('M','A','P',' ')}, /* Mapudungun */
202 {"as", HB_TAG('A','S','M',' ')}, /* Assamese */
203 {"av", HB_TAG('A','V','R',' ')}, /* Avaric */
204 {"awa", HB_TAG('A','W','A',' ')}, /* Awadhi */
205 {"ay", HB_TAG('A','Y','M',' ')}, /* Aymara */
206 {"az", HB_TAG('A','Z','E',' ')}, /* Azerbaijani */
207 {"ba", HB_TAG('B','S','H',' ')}, /* Bashkir */
208 {"bal", HB_TAG('B','L','I',' ')}, /* Baluchi */
209 {"bcq", HB_TAG('B','C','H',' ')}, /* Bench */
210 {"bem", HB_TAG('B','E','M',' ')}, /* Bemba (Zambia) */
211 {"bfq", HB_TAG('B','A','D',' ')}, /* Badaga */
212 {"bft", HB_TAG('B','L','T',' ')}, /* Balti */
213 {"bg", HB_TAG('B','G','R',' ')}, /* Bulgarian */
214 {"bhb", HB_TAG('B','H','I',' ')}, /* Bhili */
215 {"bho", HB_TAG('B','H','O',' ')}, /* Bhojpuri */
216 {"bik", HB_TAG('B','I','K',' ')}, /* Bikol */
217 {"bin", HB_TAG('E','D','O',' ')}, /* Bini */
218 {"bm", HB_TAG('B','M','B',' ')}, /* Bambara */
219 {"bn", HB_TAG('B','E','N',' ')}, /* Bengali */
220 {"bo", HB_TAG('T','I','B',' ')}, /* Tibetan */
221 {"br", HB_TAG('B','R','E',' ')}, /* Breton */
222 {"brh", HB_TAG('B','R','H',' ')}, /* Brahui */
223 {"bs", HB_TAG('B','O','S',' ')}, /* Bosnian */
224 {"btb", HB_TAG('B','T','I',' ')}, /* Beti (Cameroon) */
225 {"ca", HB_TAG('C','A','T',' ')}, /* Catalan */
226 {"ce", HB_TAG('C','H','E',' ')}, /* Chechen */
227 {"ceb", HB_TAG('C','E','B',' ')}, /* Cebuano */
228 {"chp", HB_TAG('C','H','P',' ')}, /* Chipewyan */
229 {"chr", HB_TAG('C','H','R',' ')}, /* Cherokee */
230 {"cop", HB_TAG('C','O','P',' ')}, /* Coptic */
231 {"cr", HB_TAG('C','R','E',' ')}, /* Cree */
232 {"crh", HB_TAG('C','R','T',' ')}, /* Crimean Tatar */
233 {"crm", HB_TAG('M','C','R',' ')}, /* Moose Cree */
234 {"crx", HB_TAG('C','R','R',' ')}, /* Carrier */
235 {"cs", HB_TAG('C','S','Y',' ')}, /* Czech */
236 {"cu", HB_TAG('C','S','L',' ')}, /* Church Slavic */
237 {"cv", HB_TAG('C','H','U',' ')}, /* Chuvash */
238 {"cwd", HB_TAG('D','C','R',' ')}, /* Woods Cree */
239 {"cy", HB_TAG('W','E','L',' ')}, /* Welsh */
240 {"da", HB_TAG('D','A','N',' ')}, /* Danish */
241 {"dap", HB_TAG('N','I','S',' ')}, /* Nisi (India) */
242 {"dar", HB_TAG('D','A','R',' ')}, /* Dargwa */
243 {"de", HB_TAG('D','E','U',' ')}, /* German */
244 {"din", HB_TAG('D','N','K',' ')}, /* Dinka */
245 {"dng", HB_TAG('D','U','N',' ')}, /* Dungan */
246 {"doi", HB_TAG('D','G','R',' ')}, /* Dogri */
247 {"dsb", HB_TAG('L','S','B',' ')}, /* Lower Sorbian */
248 {"dv", HB_TAG('D','I','V',' ')}, /* Dhivehi */
249 {"dz", HB_TAG('D','Z','N',' ')}, /* Dzongkha */
250 {"ee", HB_TAG('E','W','E',' ')}, /* Ewe */
251 {"efi", HB_TAG('E','F','I',' ')}, /* Efik */
252 {"el", HB_TAG('E','L','L',' ')}, /* Modern Greek (1453-) */
253 {"en", HB_TAG('E','N','G',' ')}, /* English */
254 {"eo", HB_TAG('N','T','O',' ')}, /* Esperanto */
255 {"eot", HB_TAG('B','T','I',' ')}, /* Beti (Côte d'Ivoire) */
256 {"es", HB_TAG('E','S','P',' ')}, /* Spanish */
257 {"et", HB_TAG('E','T','I',' ')}, /* Estonian */
258 {"eu", HB_TAG('E','U','Q',' ')}, /* Basque */
259 {"eve", HB_TAG('E','V','N',' ')}, /* Even */
260 {"evn", HB_TAG('E','V','K',' ')}, /* Evenki */
261 {"fa", HB_TAG('F','A','R',' ')}, /* Persian */
262 {"ff", HB_TAG('F','U','L',' ')}, /* Fulah */
263 {"fi", HB_TAG('F','I','N',' ')}, /* Finnish */
264 {"fil", HB_TAG('P','I','L',' ')}, /* Filipino */
265 {"fj", HB_TAG('F','J','I',' ')}, /* Fijian */
266 {"fo", HB_TAG('F','O','S',' ')}, /* Faroese */
267 {"fon", HB_TAG('F','O','N',' ')}, /* Fon */
268 {"fr", HB_TAG('F','R','A',' ')}, /* French */
269 {"fur", HB_TAG('F','R','L',' ')}, /* Friulian */
270 {"fy", HB_TAG('F','R','I',' ')}, /* Western Frisian */
271 {"ga", HB_TAG('I','R','I',' ')}, /* Irish */
272 {"gaa", HB_TAG('G','A','D',' ')}, /* Ga */
273 {"gag", HB_TAG('G','A','G',' ')}, /* Gagauz */
274 {"gbm", HB_TAG('G','A','W',' ')}, /* Garhwali */
275 {"gd", HB_TAG('G','A','E',' ')}, /* Scottish Gaelic */
276 {"gl", HB_TAG('G','A','L',' ')}, /* Galician */
277 {"gld", HB_TAG('N','A','N',' ')}, /* Nanai */
278 {"gn", HB_TAG('G','U','A',' ')}, /* Guarani */
279 {"gon", HB_TAG('G','O','N',' ')}, /* Gondi */
280 {"grt", HB_TAG('G','R','O',' ')}, /* Garo */
281 {"gu", HB_TAG('G','U','J',' ')}, /* Gujarati */
282 {"guk", HB_TAG('G','M','Z',' ')}, /* Gumuz */
283 {"gv", HB_TAG('M','N','X',' ')}, /* Manx Gaelic */
284 {"ha", HB_TAG('H','A','U',' ')}, /* Hausa */
285 {"har", HB_TAG('H','R','I',' ')}, /* Harari */
286 {"he", HB_TAG('I','W','R',' ')}, /* Hebrew */
287 {"hi", HB_TAG('H','I','N',' ')}, /* Hindi */
288 {"hil", HB_TAG('H','I','L',' ')}, /* Hiligaynon */
289 {"hoc", HB_TAG('H','O',' ',' ')}, /* Ho */
290 {"hr", HB_TAG('H','R','V',' ')}, /* Croatian */
291 {"hsb", HB_TAG('U','S','B',' ')}, /* Upper Sorbian */
292 {"ht", HB_TAG('H','A','I',' ')}, /* Haitian */
293 {"hu", HB_TAG('H','U','N',' ')}, /* Hungarian */
294 {"hy", HB_TAG('H','Y','E',' ')}, /* Armenian */
295 {"id", HB_TAG('I','N','D',' ')}, /* Indonesian */
296 {"ig", HB_TAG('I','B','O',' ')}, /* Igbo */
297 {"igb", HB_TAG('E','B','I',' ')}, /* Ebira */
298 {"inh", HB_TAG('I','N','G',' ')}, /* Ingush */
299 {"is", HB_TAG('I','S','L',' ')}, /* Icelandic */
300 {"it", HB_TAG('I','T','A',' ')}, /* Italian */
301 {"iu", HB_TAG('I','N','U',' ')}, /* Inuktitut */
302 {"ja", HB_TAG('J','A','N',' ')}, /* Japanese */
303 {"jv", HB_TAG('J','A','V',' ')}, /* Javanese */
304 {"ka", HB_TAG('K','A','T',' ')}, /* Georgian */
305 {"kam", HB_TAG('K','M','B',' ')}, /* Kamba (Kenya) */
306 {"kbd", HB_TAG('K','A','B',' ')}, /* Kabardian */
307 {"kdr", HB_TAG('K','R','M',' ')}, /* Karaim */
308 {"kdt", HB_TAG('K','U','Y',' ')}, /* Kuy */
309 {"kfr", HB_TAG('K','A','C',' ')}, /* Kachchi */
310 {"kfy", HB_TAG('K','M','N',' ')}, /* Kumaoni */
311 {"kha", HB_TAG('K','S','I',' ')}, /* Khasi */
312 {"khw", HB_TAG('K','H','W',' ')}, /* Khowar */
313 {"ki", HB_TAG('K','I','K',' ')}, /* Kikuyu */
314 {"kk", HB_TAG('K','A','Z',' ')}, /* Kazakh */
315 {"kl", HB_TAG('G','R','N',' ')}, /* Kalaallisut */
316 {"kln", HB_TAG('K','A','L',' ')}, /* Kalenjin */
317 {"km", HB_TAG('K','H','M',' ')}, /* Central Khmer */
318 {"kmw", HB_TAG('K','M','O',' ')}, /* Komo (Democratic Republic of Congo) */
319 {"kn", HB_TAG('K','A','N',' ')}, /* Kannada */
320 {"ko", HB_TAG('K','O','R',' ')}, /* Korean */
321 {"koi", HB_TAG('K','O','P',' ')}, /* Komi-Permyak */
322 {"kok", HB_TAG('K','O','K',' ')}, /* Konkani */
323 {"kpe", HB_TAG('K','P','L',' ')}, /* Kpelle */
324 {"kpv", HB_TAG('K','O','Z',' ')}, /* Komi-Zyrian */
325 {"kpy", HB_TAG('K','Y','K',' ')}, /* Koryak */
326 {"kqy", HB_TAG('K','R','T',' ')}, /* Koorete */
327 {"kr", HB_TAG('K','N','R',' ')}, /* Kanuri */
328 {"kri", HB_TAG('K','R','I',' ')}, /* Krio */
329 {"krl", HB_TAG('K','R','L',' ')}, /* Karelian */
330 {"kru", HB_TAG('K','U','U',' ')}, /* Kurukh */
331 {"ks", HB_TAG('K','S','H',' ')}, /* Kashmiri */
332 {"ku", HB_TAG('K','U','R',' ')}, /* Kurdish */
333 {"kum", HB_TAG('K','U','M',' ')}, /* Kumyk */
334 {"kvd", HB_TAG('K','U','I',' ')}, /* Kui (Indonesia) */
335 {"kxu", HB_TAG('K','U','I',' ')}, /* Kui (India) */
336 {"ky", HB_TAG('K','I','R',' ')}, /* Kirghiz */
337 {"la", HB_TAG('L','A','T',' ')}, /* Latin */
338 {"lad", HB_TAG('J','U','D',' ')}, /* Ladino */
339 {"lb", HB_TAG('L','T','Z',' ')}, /* Luxembourgish */
340 {"lbe", HB_TAG('L','A','K',' ')}, /* Lak */
341 {"lbj", HB_TAG('L','D','K',' ')}, /* Ladakhi */
342 {"lif", HB_TAG('L','M','B',' ')}, /* Limbu */
343 {"lld", HB_TAG('L','A','D',' ')}, /* Ladin */
344 {"ln", HB_TAG('L','I','N',' ')}, /* Lingala */
345 {"lo", HB_TAG('L','A','O',' ')}, /* Lao */
346 {"lt", HB_TAG('L','T','H',' ')}, /* Lithuanian */
347 {"luo", HB_TAG('L','U','O',' ')}, /* Luo (Kenya and Tanzania) */
348 {"luw", HB_TAG('L','U','O',' ')}, /* Luo (Cameroon) */
349 {"lv", HB_TAG('L','V','I',' ')}, /* Latvian */
350 {"lzz", HB_TAG('L','A','Z',' ')}, /* Laz */
351 {"mai", HB_TAG('M','T','H',' ')}, /* Maithili */
352 {"mdc", HB_TAG('M','L','E',' ')}, /* Male (Papua New Guinea) */
353 {"mdf", HB_TAG('M','O','K',' ')}, /* Moksha */
354 {"mdy", HB_TAG('M','L','E',' ')}, /* Male (Ethiopia) */
355 {"men", HB_TAG('M','D','E',' ')}, /* Mende (Sierra Leone) */
356 {"mg", HB_TAG('M','L','G',' ')}, /* Malagasy */
357 {"mi", HB_TAG('M','R','I',' ')}, /* Maori */
358 {"mk", HB_TAG('M','K','D',' ')}, /* Macedonian */
359 {"ml", HB_TAG('M','L','R',' ')}, /* Malayalam */
360 {"mn", HB_TAG('M','N','G',' ')}, /* Mongolian */
361 {"mnc", HB_TAG('M','C','H',' ')}, /* Manchu */
362 {"mni", HB_TAG('M','N','I',' ')}, /* Manipuri */
363 {"mnk", HB_TAG('M','N','D',' ')}, /* Mandinka */
364 {"mns", HB_TAG('M','A','N',' ')}, /* Mansi */
365 {"mnw", HB_TAG('M','O','N',' ')}, /* Mon */
366 {"mo", HB_TAG('M','O','L',' ')}, /* Moldavian */
367 {"moh", HB_TAG('M','O','H',' ')}, /* Mohawk */
368 {"mpe", HB_TAG('M','A','J',' ')}, /* Majang */
369 {"mr", HB_TAG('M','A','R',' ')}, /* Marathi */
370 {"ms", HB_TAG('M','L','Y',' ')}, /* Malay */
371 {"mt", HB_TAG('M','T','S',' ')}, /* Maltese */
372 {"mwr", HB_TAG('M','A','W',' ')}, /* Marwari */
373 {"my", HB_TAG('B','R','M',' ')}, /* Burmese */
374 {"mym", HB_TAG('M','E','N',' ')}, /* Me'en */
375 {"myv", HB_TAG('E','R','Z',' ')}, /* Erzya */
376 {"nb", HB_TAG('N','O','R',' ')}, /* Norwegian Bokmål */
377 {"nco", HB_TAG('S','I','B',' ')}, /* Sibe */
378 {"ne", HB_TAG('N','E','P',' ')}, /* Nepali */
379 {"new", HB_TAG('N','E','W',' ')}, /* Newari */
380 {"ng", HB_TAG('N','D','G',' ')}, /* Ndonga */
381 {"ngl", HB_TAG('L','M','W',' ')}, /* Lomwe */
382 {"niu", HB_TAG('N','I','U',' ')}, /* Niuean */
383 {"niv", HB_TAG('G','I','L',' ')}, /* Gilyak */
384 {"nl", HB_TAG('N','L','D',' ')}, /* Dutch */
385 {"nn", HB_TAG('N','Y','N',' ')}, /* Norwegian Nynorsk */
386 {"no", HB_TAG('N','O','R',' ')}, /* Norwegian (deprecated) */
387 {"nog", HB_TAG('N','O','G',' ')}, /* Nogai */
388 {"nqo", HB_TAG('N','K','O',' ')}, /* N'Ko */
389 {"nsk", HB_TAG('N','A','S',' ')}, /* Naskapi */
390 {"ny", HB_TAG('C','H','I',' ')}, /* Nyanja */
391 {"oc", HB_TAG('O','C','I',' ')}, /* Occitan (post 1500) */
392 {"oj", HB_TAG('O','J','B',' ')}, /* Ojibwa */
393 {"om", HB_TAG('O','R','O',' ')}, /* Oromo */
394 {"or", HB_TAG('O','R','I',' ')}, /* Oriya */
395 {"os", HB_TAG('O','S','S',' ')}, /* Ossetian */
396 {"pa", HB_TAG('P','A','N',' ')}, /* Panjabi */
397 {"pi", HB_TAG('P','A','L',' ')}, /* Pali */
398 {"pl", HB_TAG('P','L','K',' ')}, /* Polish */
399 {"plp", HB_TAG('P','A','P',' ')}, /* Palpa */
400 {"prs", HB_TAG('D','R','I',' ')}, /* Dari */
401 {"ps", HB_TAG('P','A','S',' ')}, /* Pushto */
402 {"pt", HB_TAG('P','T','G',' ')}, /* Portuguese */
403 {"raj", HB_TAG('R','A','J',' ')}, /* Rajasthani */
404 {"ria", HB_TAG('R','I','A',' ')}, /* Riang (India) */
405 {"ril", HB_TAG('R','I','A',' ')}, /* Riang (Myanmar) */
406 {"ro", HB_TAG('R','O','M',' ')}, /* Romanian */
407 {"rom", HB_TAG('R','O','Y',' ')}, /* Romany */
408 {"ru", HB_TAG('R','U','S',' ')}, /* Russian */
409 {"rue", HB_TAG('R','S','Y',' ')}, /* Rusyn */
410 {"sa", HB_TAG('S','A','N',' ')}, /* Sanskrit */
411 {"sah", HB_TAG('Y','A','K',' ')}, /* Yakut */
412 {"sat", HB_TAG('S','A','T',' ')}, /* Santali */
413 {"sck", HB_TAG('S','A','D',' ')}, /* Sadri */
414 {"sd", HB_TAG('S','N','D',' ')}, /* Sindhi */
415 {"se", HB_TAG('N','S','M',' ')}, /* Northern Sami */
416 {"seh", HB_TAG('S','N','A',' ')}, /* Sena */
417 {"sel", HB_TAG('S','E','L',' ')}, /* Selkup */
418 {"sg", HB_TAG('S','G','O',' ')}, /* Sango */
419 {"shn", HB_TAG('S','H','N',' ')}, /* Shan */
420 {"si", HB_TAG('S','N','H',' ')}, /* Sinhala */
421 {"sid", HB_TAG('S','I','D',' ')}, /* Sidamo */
422 {"sjd", HB_TAG('K','S','M',' ')}, /* Kildin Sami */
423 {"sk", HB_TAG('S','K','Y',' ')}, /* Slovak */
424 {"skr", HB_TAG('S','R','K',' ')}, /* Seraiki */
425 {"sl", HB_TAG('S','L','V',' ')}, /* Slovenian */
426 {"sm", HB_TAG('S','M','O',' ')}, /* Samoan */
427 {"sma", HB_TAG('S','S','M',' ')}, /* Southern Sami */
428 {"smj", HB_TAG('L','S','M',' ')}, /* Lule Sami */
429 {"smn", HB_TAG('I','S','M',' ')}, /* Inari Sami */
430 {"sms", HB_TAG('S','K','S',' ')}, /* Skolt Sami */
431 {"snk", HB_TAG('S','N','K',' ')}, /* Soninke */
432 {"so", HB_TAG('S','M','L',' ')}, /* Somali */
433 {"sq", HB_TAG('S','Q','I',' ')}, /* Albanian */
434 {"sr", HB_TAG('S','R','B',' ')}, /* Serbian */
435 {"srr", HB_TAG('S','R','R',' ')}, /* Serer */
436 {"suq", HB_TAG('S','U','R',' ')}, /* Suri */
437 {"sv", HB_TAG('S','V','E',' ')}, /* Swedish */
438 {"sva", HB_TAG('S','V','A',' ')}, /* Svan */
439 {"sw", HB_TAG('S','W','K',' ')}, /* Swahili */
440 {"swb", HB_TAG('C','M','R',' ')}, /* Comorian */
441 {"syr", HB_TAG('S','Y','R',' ')}, /* Syriac */
442 {"ta", HB_TAG('T','A','M',' ')}, /* Tamil */
443 {"tcy", HB_TAG('T','U','L',' ')}, /* Tulu */
444 {"te", HB_TAG('T','E','L',' ')}, /* Telugu */
445 {"tg", HB_TAG('T','A','J',' ')}, /* Tajik */
446 {"th", HB_TAG('T','H','A',' ')}, /* Thai */
447 {"ti", HB_TAG('T','G','Y',' ')}, /* Tigrinya */
448 {"tig", HB_TAG('T','G','R',' ')}, /* Tigre */
449 {"tk", HB_TAG('T','K','M',' ')}, /* Turkmen */
450 {"tn", HB_TAG('T','N','A',' ')}, /* Tswana */
451 {"tnz", HB_TAG('T','N','G',' ')}, /* Tonga (Thailand) */
452 {"to", HB_TAG('T','N','G',' ')}, /* Tonga (Tonga Islands) */
453 {"tog", HB_TAG('T','N','G',' ')}, /* Tonga (Nyasa) */
454 {"toi", HB_TAG('T','N','G',' ')}, /* Tonga (Zambia) */
455 {"tr", HB_TAG('T','R','K',' ')}, /* Turkish */
456 {"ts", HB_TAG('T','S','G',' ')}, /* Tsonga */
457 {"tt", HB_TAG('T','A','T',' ')}, /* Tatar */
458 {"tw", HB_TAG('T','W','I',' ')}, /* Twi */
459 {"ty", HB_TAG('T','H','T',' ')}, /* Tahitian */
460 {"udm", HB_TAG('U','D','M',' ')}, /* Udmurt */
461 {"ug", HB_TAG('U','Y','G',' ')}, /* Uighur */
462 {"uk", HB_TAG('U','K','R',' ')}, /* Ukrainian */
463 {"unr", HB_TAG('M','U','N',' ')}, /* Mundari */
464 {"ur", HB_TAG('U','R','D',' ')}, /* Urdu */
465 {"uz", HB_TAG('U','Z','B',' ')}, /* Uzbek */
466 {"ve", HB_TAG('V','E','N',' ')}, /* Venda */
467 {"vi", HB_TAG('V','I','T',' ')}, /* Vietnamese */
468 {"wbm", HB_TAG('W','A',' ',' ')}, /* Wa */
469 {"wbr", HB_TAG('W','A','G',' ')}, /* Wagdi */
470 {"wo", HB_TAG('W','L','F',' ')}, /* Wolof */
471 {"xal", HB_TAG('K','L','M',' ')}, /* Kalmyk */
472 {"xh", HB_TAG('X','H','S',' ')}, /* Xhosa */
473 {"xom", HB_TAG('K','M','O',' ')}, /* Komo (Sudan) */
474 {"xsl", HB_TAG('S','S','L',' ')}, /* South Slavey */
475 {"yi", HB_TAG('J','I','I',' ')}, /* Yiddish */
476 {"yo", HB_TAG('Y','B','A',' ')}, /* Yoruba */
477 {"yso", HB_TAG('N','I','S',' ')}, /* Nisi (China) */
478 {"zh-cn", HB_TAG('Z','H','S',' ')}, /* Chinese (China) */
479 {"zh-hk", HB_TAG('Z','H','H',' ')}, /* Chinese (Hong Kong) */
480 {"zh-mo", HB_TAG('Z','H','T',' ')}, /* Chinese (Macao) */
481 {"zh-sg", HB_TAG('Z','H','S',' ')}, /* Chinese (Singapore) */
482 {"zh-tw", HB_TAG('Z','H','T',' ')}, /* Chinese (Taiwan) */
483 {"zne", HB_TAG('Z','N','D',' ')}, /* Zande */
484 {"zu", HB_TAG('Z','U','L',' ')} /* Zulu */
485
486 /* I couldn't find the language id for these */
487
488 /*{"??", HB_TAG('A','G','W',' ')},*/ /* Agaw */
489 /*{"??", HB_TAG('A','L','S',' ')},*/ /* Alsatian */
490 /*{"??", HB_TAG('A','L','T',' ')},*/ /* Altai */
491 /*{"??", HB_TAG('A','R','K',' ')},*/ /* Arakanese */
492 /*{"??", HB_TAG('A','T','H',' ')},*/ /* Athapaskan */
493 /*{"??", HB_TAG('B','A','G',' ')},*/ /* Baghelkhandi */
494 /*{"??", HB_TAG('B','A','L',' ')},*/ /* Balkar */
495 /*{"??", HB_TAG('B','A','U',' ')},*/ /* Baule */
496 /*{"??", HB_TAG('B','B','R',' ')},*/ /* Berber */
497 /*{"??", HB_TAG('B','C','R',' ')},*/ /* Bible Cree */
498 /*{"??", HB_TAG('B','E','L',' ')},*/ /* Belarussian */
499 /*{"??", HB_TAG('B','I','L',' ')},*/ /* Bilen */
500 /*{"??", HB_TAG('B','K','F',' ')},*/ /* Blackfoot */
501 /*{"??", HB_TAG('B','L','N',' ')},*/ /* Balante */
502 /*{"??", HB_TAG('B','M','L',' ')},*/ /* Bamileke */
503 /*{"??", HB_TAG('B','R','I',' ')},*/ /* Braj Bhasha */
504 /*{"??", HB_TAG('C','H','G',' ')},*/ /* Chaha Gurage */
505 /*{"??", HB_TAG('C','H','H',' ')},*/ /* Chattisgarhi */
506 /*{"??", HB_TAG('C','H','K',' ')},*/ /* Chukchi */
507 /*{"??", HB_TAG('D','J','R',' ')},*/ /* Djerma */
508 /*{"??", HB_TAG('D','N','G',' ')},*/ /* Dangme */
509 /*{"??", HB_TAG('E','C','R',' ')},*/ /* Eastern Cree */
510 /*{"??", HB_TAG('F','A','N',' ')},*/ /* French Antillean */
511 /*{"??", HB_TAG('F','L','E',' ')},*/ /* Flemish */
512 /*{"??", HB_TAG('F','N','E',' ')},*/ /* Forest Nenets */
513 /*{"??", HB_TAG('F','T','A',' ')},*/ /* Futa */
514 /*{"??", HB_TAG('G','A','R',' ')},*/ /* Garshuni */
515 /*{"??", HB_TAG('G','E','Z',' ')},*/ /* Ge'ez */
516 /*{"??", HB_TAG('H','A','L',' ')},*/ /* Halam */
517 /*{"??", HB_TAG('H','A','R',' ')},*/ /* Harauti */
518 /*{"??", HB_TAG('H','A','W',' ')},*/ /* Hawaiin */
519 /*{"??", HB_TAG('H','B','N',' ')},*/ /* Hammer-Banna */
520 /*{"??", HB_TAG('H','M','A',' ')},*/ /* High Mari */
521 /*{"??", HB_TAG('H','N','D',' ')},*/ /* Hindko */
522 /*{"??", HB_TAG('I','J','O',' ')},*/ /* Ijo */
523 /*{"??", HB_TAG('I','L','O',' ')},*/ /* Ilokano */
524 /*{"??", HB_TAG('I','R','T',' ')},*/ /* Irish Traditional */
525 /*{"??", HB_TAG('J','U','L',' ')},*/ /* Jula */
526 /*{"??", HB_TAG('K','A','R',' ')},*/ /* Karachay */
527 /*{"??", HB_TAG('K','E','B',' ')},*/ /* Kebena */
528 /*{"??", HB_TAG('K','G','E',' ')},*/ /* Khutsuri Georgian */
529 /*{"??", HB_TAG('K','H','A',' ')},*/ /* Khakass */
530 /*{"??", HB_TAG('K','H','K',' ')},*/ /* Khanty-Kazim */
531 /*{"??", HB_TAG('K','H','S',' ')},*/ /* Khanty-Shurishkar */
532 /*{"??", HB_TAG('K','H','V',' ')},*/ /* Khanty-Vakhi */
533 /*{"??", HB_TAG('K','I','S',' ')},*/ /* Kisii */
534 /*{"??", HB_TAG('K','K','N',' ')},*/ /* Kokni */
535 /*{"??", HB_TAG('K','M','S',' ')},*/ /* Komso */
536 /*{"??", HB_TAG('K','O','D',' ')},*/ /* Kodagu */
537 /*{"??", HB_TAG('K','O','H',' ')},*/ /* Korean Old Hangul */
538 /*{"??", HB_TAG('K','O','N',' ')},*/ /* Kikongo */
539 /*{"??", HB_TAG('K','R','K',' ')},*/ /* Karakalpak */
540 /*{"??", HB_TAG('K','R','N',' ')},*/ /* Karen */
541 /*{"??", HB_TAG('K','U','L',' ')},*/ /* Kulvi */
542 /*{"??", HB_TAG('L','A','H',' ')},*/ /* Lahuli */
543 /*{"??", HB_TAG('L','A','M',' ')},*/ /* Lambani */
544 /*{"??", HB_TAG('L','C','R',' ')},*/ /* L-Cree */
545 /*{"??", HB_TAG('L','E','Z',' ')},*/ /* Lezgi */
546 /*{"??", HB_TAG('L','M','A',' ')},*/ /* Low Mari */
547 /*{"??", HB_TAG('L','U','B',' ')},*/ /* Luba */
548 /*{"??", HB_TAG('L','U','G',' ')},*/ /* Luganda */
549 /*{"??", HB_TAG('L','U','H',' ')},*/ /* Luhya */
550 /*{"??", HB_TAG('M','A','K',' ')},*/ /* Makua */
551 /*{"??", HB_TAG('M','A','L',' ')},*/ /* Malayalam Traditional */
552 /*{"??", HB_TAG('M','B','N',' ')},*/ /* Mbundu */
553 /*{"??", HB_TAG('M','I','Z',' ')},*/ /* Mizo */
554 /*{"??", HB_TAG('M','L','N',' ')},*/ /* Malinke */
555 /*{"??", HB_TAG('M','N','K',' ')},*/ /* Maninka */
556 /*{"??", HB_TAG('M','O','R',' ')},*/ /* Moroccan */
557 /*{"??", HB_TAG('N','A','G',' ')},*/ /* Naga-Assamese */
558 /*{"??", HB_TAG('N','C','R',' ')},*/ /* N-Cree */
559 /*{"??", HB_TAG('N','D','B',' ')},*/ /* Ndebele */
560 /*{"??", HB_TAG('N','G','R',' ')},*/ /* Nagari */
561 /*{"??", HB_TAG('N','H','C',' ')},*/ /* Norway House Cree */
562 /*{"??", HB_TAG('N','K','L',' ')},*/ /* Nkole */
563 /*{"??", HB_TAG('N','T','A',' ')},*/ /* Northern Tai */
564 /*{"??", HB_TAG('O','C','R',' ')},*/ /* Oji-Cree */
565 /*{"??", HB_TAG('P','A','A',' ')},*/ /* Palestinian Aramaic */
566 /*{"??", HB_TAG('P','G','R',' ')},*/ /* Polytonic Greek */
567 /*{"??", HB_TAG('P','L','G',' ')},*/ /* Palaung */
568 /*{"??", HB_TAG('Q','I','N',' ')},*/ /* Chin */
569 /*{"??", HB_TAG('R','B','U',' ')},*/ /* Russian Buriat */
570 /*{"??", HB_TAG('R','C','R',' ')},*/ /* R-Cree */
571 /*{"??", HB_TAG('R','M','S',' ')},*/ /* Rhaeto-Romanic */
572 /*{"??", HB_TAG('R','U','A',' ')},*/ /* Ruanda */
573 /*{"??", HB_TAG('S','A','Y',' ')},*/ /* Sayisi */
574 /*{"??", HB_TAG('S','E','K',' ')},*/ /* Sekota */
575 /*{"??", HB_TAG('S','I','G',' ')},*/ /* Silte Gurage */
576 /*{"??", HB_TAG('S','L','A',' ')},*/ /* Slavey */
577 /*{"??", HB_TAG('S','O','G',' ')},*/ /* Sodo Gurage */
578 /*{"??", HB_TAG('S','O','T',' ')},*/ /* Sotho */
579 /*{"??", HB_TAG('S','W','A',' ')},*/ /* Swadaya Aramaic */
580 /*{"??", HB_TAG('S','W','Z',' ')},*/ /* Swazi */
581 /*{"??", HB_TAG('S','X','T',' ')},*/ /* Sutu */
582 /*{"??", HB_TAG('T','A','B',' ')},*/ /* Tabasaran */
583 /*{"??", HB_TAG('T','C','R',' ')},*/ /* TH-Cree */
584 /*{"??", HB_TAG('T','G','N',' ')},*/ /* Tongan */
585 /*{"??", HB_TAG('T','M','N',' ')},*/ /* Temne */
586 /*{"??", HB_TAG('T','N','E',' ')},*/ /* Tundra Nenets */
587 /*{"??", HB_TAG('T','O','D',' ')},*/ /* Todo */
588 /*{"??", HB_TAG('T','U','A',' ')},*/ /* Turoyo Aramaic */
589 /*{"??", HB_TAG('T','U','V',' ')},*/ /* Tuvin */
590 /*{"??", HB_TAG('W','C','R',' ')},*/ /* West-Cree */
591 /*{"??", HB_TAG('X','B','D',' ')},*/ /* Tai Lue */
592 /*{"??", HB_TAG('Y','C','R',' ')},*/ /* Y-Cree */
593 /*{"??", HB_TAG('Y','I','C',' ')},*/ /* Yi Classic */
594 /*{"??", HB_TAG('Y','I','M',' ')},*/ /* Yi Modern */
595 /*{"??", HB_TAG('Z','H','P',' ')},*/ /* Chinese Phonetic */
596 };
597
598 static int
599 lang_compare_first_component (const char *a,
600 const char *b)
601 {
602 unsigned int da, db;
603 const char *p;
604
605 p = strstr (a, "-");
606 da = p ? (unsigned int) (p - a) : strlen (a);
607
608 p = strstr (b, "-");
609 db = p ? (unsigned int) (p - b) : strlen (b);
610
611 return strncmp (a, b, MAX (da, db));
612 }
613
614 static hb_bool_t
615 lang_matches (const char *lang_str, const char *spec)
616 {
617 unsigned int len = strlen (spec);
618
619 return lang_str && strncmp (lang_str, spec, len) == 0 &&
620 (lang_str[len] == '\0' || lang_str[len] == '-');
621 }
622
623 hb_tag_t
624 hb_ot_tag_from_language (hb_language_t language)
625 {
626 const char *lang_str;
627 LangTag *lang_tag;
628
629 if (language == NULL)
630 return HB_OT_TAG_DEFAULT_LANGUAGE;
631
632 lang_str = hb_language_to_string (language);
633
634 if (0 == strcmp (lang_str, "x-hbot")) {
635 char tag[4];
636 int i;
637 lang_str += 6;
638 #define IS_LETTER(c) (((c) >= 'a' && (c) <= 'z') || ((c) >= 'A' && (c) <= 'Z'))
639 #define TO_UPPER(c) (((c) >= 'a' && (c) <= 'z') ? (c) + 'A' - 'a' : (c))
640 for (i = 0; i < 4 && IS_LETTER (lang_str[i]); i++)
641 tag[i] = TO_UPPER (lang_str[i]);
642 for (; i < 4; i++)
643 tag[i] = ' ';
644 return HB_TAG_STR (tag);
645 }
646
647 /* find a language matching in the first component */
648 lang_tag = bsearch (lang_str, ot_languages,
649 ARRAY_LENGTH (ot_languages), sizeof (LangTag),
650 (hb_compare_func_t) lang_compare_first_component);
651
652 /* we now need to find the best language matching */
653 if (lang_tag)
654 {
655 hb_bool_t found = FALSE;
656
657 /* go to the final one matching in the first component */
658 while (lang_tag + 1 < ot_languages + ARRAY_LENGTH (ot_languages) &&
659 lang_compare_first_component (lang_str, (lang_tag + 1)->language) == 0)
660 lang_tag++;
661
662 /* go back, find which one matches completely */
663 while (lang_tag >= ot_languages &&
664 lang_compare_first_component (lang_str, lang_tag->language) == 0)
665 {
666 if (lang_matches (lang_str, lang_tag->language)) {
667 found = TRUE;
668 break;
669 }
670
671 lang_tag--;
672 }
673
674 if (!found)
675 lang_tag = NULL;
676 }
677
678 if (lang_tag)
679 return lang_tag->tag;
680
681 return HB_OT_TAG_DEFAULT_LANGUAGE;
682 }
683
684 hb_language_t
685 hb_ot_tag_to_language (hb_tag_t tag)
686 {
687 unsigned int i;
688 unsigned char buf[11] = "x-hbot";
689
690 for (i = 0; i < ARRAY_LENGTH (ot_languages); i++)
691 if (ot_languages[i].tag == tag)
692 return hb_language_from_string (ot_languages[i].language);
693
694 buf[6] = tag >> 24;
695 buf[7] = (tag >> 16) & 0xFF;
696 buf[8] = (tag >> 8) & 0xFF;
697 buf[9] = tag & 0xFF;
698 buf[10] = '\0';
699 return hb_language_from_string ((char *) buf);
700 }
701
702
703 HB_END_DECLS
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