1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
|
/*
* Copyright © 2007,2008,2009 Red Hat, Inc.
* Copyright © 2011,2012 Google, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* Red Hat Author(s): Behdad Esfahbod
* Google Author(s): Behdad Esfahbod
*/
#ifndef HB_H_IN
#error "Include <hb.h> instead."
#endif
#ifndef HB_COMMON_H
#define HB_COMMON_H
#ifndef HB_BEGIN_DECLS
# ifdef __cplusplus
# define HB_BEGIN_DECLS extern "C" {
# define HB_END_DECLS }
# else /* !__cplusplus */
# define HB_BEGIN_DECLS
# define HB_END_DECLS
# endif /* !__cplusplus */
#endif
#if !defined (HB_DONT_DEFINE_STDINT)
#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>
/* VS 2010 (_MSC_VER 1600) has stdint.h */
#elif defined (_MSC_VER) && _MSC_VER < 1600
typedef __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#else
# include <stdint.h>
#endif
#endif
HB_BEGIN_DECLS
typedef int hb_bool_t;
typedef uint32_t hb_codepoint_t;
typedef int32_t hb_position_t;
typedef uint32_t hb_mask_t;
typedef union _hb_var_int_t {
uint32_t u32;
int32_t i32;
uint16_t u16[2];
int16_t i16[2];
uint8_t u8[4];
int8_t i8[4];
} hb_var_int_t;
/* hb_tag_t */
typedef uint32_t hb_tag_t;
#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))))
#define HB_UNTAG(tag) ((uint8_t)((tag)>>24)), ((uint8_t)((tag)>>16)), ((uint8_t)((tag)>>8)), ((uint8_t)(tag))
#define HB_TAG_NONE HB_TAG(0,0,0,0)
/* len=-1 means str is NUL-terminated. */
hb_tag_t
hb_tag_from_string (const char *str, int len);
/* buf should have 4 bytes. */
void
hb_tag_to_string (hb_tag_t tag, char *buf);
/* hb_direction_t */
typedef enum {
HB_DIRECTION_INVALID = 0,
HB_DIRECTION_LTR = 4,
HB_DIRECTION_RTL,
HB_DIRECTION_TTB,
HB_DIRECTION_BTT
} hb_direction_t;
/* len=-1 means str is NUL-terminated */
hb_direction_t
hb_direction_from_string (const char *str, int len);
const char *
hb_direction_to_string (hb_direction_t direction);
#define HB_DIRECTION_IS_HORIZONTAL(dir) ((((unsigned int) (dir)) & ~1U) == 4)
#define HB_DIRECTION_IS_VERTICAL(dir) ((((unsigned int) (dir)) & ~1U) == 6)
#define HB_DIRECTION_IS_FORWARD(dir) ((((unsigned int) (dir)) & ~2U) == 4)
#define HB_DIRECTION_IS_BACKWARD(dir) ((((unsigned int) (dir)) & ~2U) == 5)
#define HB_DIRECTION_IS_VALID(dir) ((((unsigned int) (dir)) & ~3U) == 4)
#define HB_DIRECTION_REVERSE(dir) ((hb_direction_t) (((unsigned int) (dir)) ^ 1)) /* Direction must be valid */
/* hb_language_t */
typedef struct hb_language_impl_t *hb_language_t;
/* len=-1 means str is NUL-terminated */
hb_language_t
hb_language_from_string (const char *str, int len);
const char *
hb_language_to_string (hb_language_t language);
#define HB_LANGUAGE_INVALID ((hb_language_t) NULL)
hb_language_t
hb_language_get_default (void);
/* hb_script_t */
/* http://unicode.org/iso15924/ */
/* http://goo.gl/x9ilM */
/* Unicode Character Database property: Script (sc) */
typedef enum
{
/* Unicode-1.1 additions */
HB_SCRIPT_COMMON = HB_TAG ('Z','y','y','y'),
HB_SCRIPT_ARABIC = HB_TAG ('A','r','a','b'),
HB_SCRIPT_ARMENIAN = HB_TAG ('A','r','m','n'),
HB_SCRIPT_BENGALI = HB_TAG ('B','e','n','g'),
HB_SCRIPT_BOPOMOFO = HB_TAG ('B','o','p','o'),
HB_SCRIPT_CANADIAN_ABORIGINAL = HB_TAG ('C','a','n','s'),
HB_SCRIPT_CHEROKEE = HB_TAG ('C','h','e','r'),
HB_SCRIPT_COPTIC = HB_TAG ('C','o','p','t'),
HB_SCRIPT_CYRILLIC = HB_TAG ('C','y','r','l'),
HB_SCRIPT_DEVANAGARI = HB_TAG ('D','e','v','a'),
HB_SCRIPT_GEORGIAN = HB_TAG ('G','e','o','r'),
HB_SCRIPT_GREEK = HB_TAG ('G','r','e','k'),
HB_SCRIPT_GUJARATI = HB_TAG ('G','u','j','r'),
HB_SCRIPT_GURMUKHI = HB_TAG ('G','u','r','u'),
HB_SCRIPT_HANGUL = HB_TAG ('H','a','n','g'),
HB_SCRIPT_HAN = HB_TAG ('H','a','n','i'),
HB_SCRIPT_HEBREW = HB_TAG ('H','e','b','r'),
HB_SCRIPT_HIRAGANA = HB_TAG ('H','i','r','a'),
HB_SCRIPT_INHERITED = HB_TAG ('Z','i','n','h'),
HB_SCRIPT_KANNADA = HB_TAG ('K','n','d','a'),
HB_SCRIPT_KATAKANA = HB_TAG ('K','a','n','a'),
HB_SCRIPT_LAO = HB_TAG ('L','a','o','o'),
HB_SCRIPT_LATIN = HB_TAG ('L','a','t','n'),
HB_SCRIPT_MALAYALAM = HB_TAG ('M','l','y','m'),
HB_SCRIPT_MONGOLIAN = HB_TAG ('M','o','n','g'),
HB_SCRIPT_OGHAM = HB_TAG ('O','g','a','m'),
HB_SCRIPT_ORIYA = HB_TAG ('O','r','y','a'),
HB_SCRIPT_RUNIC = HB_TAG ('R','u','n','r'),
HB_SCRIPT_SYRIAC = HB_TAG ('S','y','r','c'),
HB_SCRIPT_TAMIL = HB_TAG ('T','a','m','l'),
HB_SCRIPT_TELUGU = HB_TAG ('T','e','l','u'),
HB_SCRIPT_THAI = HB_TAG ('T','h','a','i'),
HB_SCRIPT_YI = HB_TAG ('Y','i','i','i'),
/* Unicode-2.0 additions */
HB_SCRIPT_TIBETAN = HB_TAG ('T','i','b','t'),
/* Unicode-3.0 additions */
HB_SCRIPT_ETHIOPIC = HB_TAG ('E','t','h','i'),
HB_SCRIPT_KHMER = HB_TAG ('K','h','m','r'),
HB_SCRIPT_MYANMAR = HB_TAG ('M','y','m','r'),
HB_SCRIPT_SINHALA = HB_TAG ('S','i','n','h'),
HB_SCRIPT_THAANA = HB_TAG ('T','h','a','a'),
/* Unicode-3.1 additions */
HB_SCRIPT_DESERET = HB_TAG ('D','s','r','t'),
HB_SCRIPT_GOTHIC = HB_TAG ('G','o','t','h'),
HB_SCRIPT_OLD_ITALIC = HB_TAG ('I','t','a','l'),
/* Unicode-3.2 additions */
HB_SCRIPT_BUHID = HB_TAG ('B','u','h','d'),
HB_SCRIPT_HANUNOO = HB_TAG ('H','a','n','o'),
HB_SCRIPT_TAGALOG = HB_TAG ('T','g','l','g'),
HB_SCRIPT_TAGBANWA = HB_TAG ('T','a','g','b'),
/* Unicode-4.0 additions */
HB_SCRIPT_BRAILLE = HB_TAG ('B','r','a','i'),
HB_SCRIPT_CYPRIOT = HB_TAG ('C','p','r','t'),
HB_SCRIPT_LIMBU = HB_TAG ('L','i','m','b'),
HB_SCRIPT_LINEAR_B = HB_TAG ('L','i','n','b'),
HB_SCRIPT_OSMANYA = HB_TAG ('O','s','m','a'),
HB_SCRIPT_SHAVIAN = HB_TAG ('S','h','a','w'),
HB_SCRIPT_TAI_LE = HB_TAG ('T','a','l','e'),
HB_SCRIPT_UGARITIC = HB_TAG ('U','g','a','r'),
/* Unicode-4.1 additions */
HB_SCRIPT_BUGINESE = HB_TAG ('B','u','g','i'),
HB_SCRIPT_GLAGOLITIC = HB_TAG ('G','l','a','g'),
HB_SCRIPT_KHAROSHTHI = HB_TAG ('K','h','a','r'),
HB_SCRIPT_NEW_TAI_LUE = HB_TAG ('T','a','l','u'),
HB_SCRIPT_OLD_PERSIAN = HB_TAG ('X','p','e','o'),
HB_SCRIPT_SYLOTI_NAGRI = HB_TAG ('S','y','l','o'),
HB_SCRIPT_TIFINAGH = HB_TAG ('T','f','n','g'),
/* Unicode-5.0 additions */
HB_SCRIPT_BALINESE = HB_TAG ('B','a','l','i'),
HB_SCRIPT_CUNEIFORM = HB_TAG ('X','s','u','x'),
HB_SCRIPT_NKO = HB_TAG ('N','k','o','o'),
HB_SCRIPT_PHAGS_PA = HB_TAG ('P','h','a','g'),
HB_SCRIPT_PHOENICIAN = HB_TAG ('P','h','n','x'),
HB_SCRIPT_UNKNOWN = HB_TAG ('Z','z','z','z'),
/* Unicode-5.1 additions */
HB_SCRIPT_CARIAN = HB_TAG ('C','a','r','i'),
HB_SCRIPT_CHAM = HB_TAG ('C','h','a','m'),
HB_SCRIPT_KAYAH_LI = HB_TAG ('K','a','l','i'),
HB_SCRIPT_LEPCHA = HB_TAG ('L','e','p','c'),
HB_SCRIPT_LYCIAN = HB_TAG ('L','y','c','i'),
HB_SCRIPT_LYDIAN = HB_TAG ('L','y','d','i'),
HB_SCRIPT_OL_CHIKI = HB_TAG ('O','l','c','k'),
HB_SCRIPT_REJANG = HB_TAG ('R','j','n','g'),
HB_SCRIPT_SAURASHTRA = HB_TAG ('S','a','u','r'),
HB_SCRIPT_SUNDANESE = HB_TAG ('S','u','n','d'),
HB_SCRIPT_VAI = HB_TAG ('V','a','i','i'),
/* Unicode-5.2 additions */
HB_SCRIPT_AVESTAN = HB_TAG ('A','v','s','t'),
HB_SCRIPT_BAMUM = HB_TAG ('B','a','m','u'),
HB_SCRIPT_EGYPTIAN_HIEROGLYPHS = HB_TAG ('E','g','y','p'),
HB_SCRIPT_IMPERIAL_ARAMAIC = HB_TAG ('A','r','m','i'),
HB_SCRIPT_INSCRIPTIONAL_PAHLAVI = HB_TAG ('P','h','l','i'),
HB_SCRIPT_INSCRIPTIONAL_PARTHIAN = HB_TAG ('P','r','t','i'),
HB_SCRIPT_JAVANESE = HB_TAG ('J','a','v','a'),
HB_SCRIPT_KAITHI = HB_TAG ('K','t','h','i'),
HB_SCRIPT_LISU = HB_TAG ('L','i','s','u'),
HB_SCRIPT_MEETEI_MAYEK = HB_TAG ('M','t','e','i'),
HB_SCRIPT_OLD_SOUTH_ARABIAN = HB_TAG ('S','a','r','b'),
HB_SCRIPT_OLD_TURKIC = HB_TAG ('O','r','k','h'),
HB_SCRIPT_SAMARITAN = HB_TAG ('S','a','m','r'),
HB_SCRIPT_TAI_THAM = HB_TAG ('L','a','n','a'),
HB_SCRIPT_TAI_VIET = HB_TAG ('T','a','v','t'),
/* Unicode-6.0 additions */
HB_SCRIPT_BATAK = HB_TAG ('B','a','t','k'),
HB_SCRIPT_BRAHMI = HB_TAG ('B','r','a','h'),
HB_SCRIPT_MANDAIC = HB_TAG ('M','a','n','d'),
/* Unicode-6.1 additions */
HB_SCRIPT_CHAKMA = HB_TAG ('C','a','k','m'),
HB_SCRIPT_MEROITIC_CURSIVE = HB_TAG ('M','e','r','c'),
HB_SCRIPT_MEROITIC_HIEROGLYPHS = HB_TAG ('M','e','r','o'),
HB_SCRIPT_MIAO = HB_TAG ('P','l','r','d'),
HB_SCRIPT_SHARADA = HB_TAG ('S','h','r','d'),
HB_SCRIPT_SORA_SOMPENG = HB_TAG ('S','o','r','a'),
HB_SCRIPT_TAKRI = HB_TAG ('T','a','k','r'),
/* No script set */
HB_SCRIPT_INVALID = HB_TAG_NONE
} hb_script_t;
/* Script functions */
hb_script_t
hb_script_from_iso15924_tag (hb_tag_t tag);
/* suger for tag_from_string() then script_from_iso15924_tag */
/* len=-1 means s is NUL-terminated */
hb_script_t
hb_script_from_string (const char *s, int len);
hb_tag_t
hb_script_to_iso15924_tag (hb_script_t script);
hb_direction_t
hb_script_get_horizontal_direction (hb_script_t script);
/* User data */
typedef struct hb_user_data_key_t {
/*< private >*/
char unused;
} hb_user_data_key_t;
typedef void (*hb_destroy_func_t) (void *user_data);
HB_END_DECLS
#endif /* HB_COMMON_H */
|
