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| 1 /* | |
| 2 ** 2012 May 25 | |
| 3 ** | |
| 4 ** The author disclaims copyright to this source code. In place of | |
| 5 ** a legal notice, here is a blessing: | |
| 6 ** | |
| 7 ** May you do good and not evil. | |
| 8 ** May you find forgiveness for yourself and forgive others. | |
| 9 ** May you share freely, never taking more than you give. | |
| 10 ** | |
| 11 ****************************************************************************** | |
| 12 */ | |
| 13 | |
| 14 /* | |
| 15 ** DO NOT EDIT THIS MACHINE GENERATED FILE. | |
| 16 */ | |
| 17 | |
| 18 #ifndef SQLITE_DISABLE_FTS3_UNICODE | |
| 19 #if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4) | |
| 20 | |
| 21 #include <assert.h> | |
| 22 | |
| 23 /* | |
| 24 ** Return true if the argument corresponds to a unicode codepoint | |
| 25 ** classified as either a letter or a number. Otherwise false. | |
| 26 ** | |
| 27 ** The results are undefined if the value passed to this function | |
| 28 ** is less than zero. | |
| 29 */ | |
| 30 int sqlite3FtsUnicodeIsalnum(int c){ | |
| 31 /* Each unsigned integer in the following array corresponds to a contiguous | |
| 32 ** range of unicode codepoints that are not either letters or numbers (i.e. | |
| 33 ** codepoints for which this function should return 0). | |
| 34 ** | |
| 35 ** The most significant 22 bits in each 32-bit value contain the first | |
| 36 ** codepoint in the range. The least significant 10 bits are used to store | |
| 37 ** the size of the range (always at least 1). In other words, the value | |
| 38 ** ((C<<22) + N) represents a range of N codepoints starting with codepoint | |
| 39 ** C. It is not possible to represent a range larger than 1023 codepoints | |
| 40 ** using this format. | |
| 41 */ | |
| 42 static const unsigned int aEntry[] = { | |
| 43 0x00000030, 0x0000E807, 0x00016C06, 0x0001EC2F, 0x0002AC07, | |
| 44 0x0002D001, 0x0002D803, 0x0002EC01, 0x0002FC01, 0x00035C01, | |
| 45 0x0003DC01, 0x000B0804, 0x000B480E, 0x000B9407, 0x000BB401, | |
| 46 0x000BBC81, 0x000DD401, 0x000DF801, 0x000E1002, 0x000E1C01, | |
| 47 0x000FD801, 0x00120808, 0x00156806, 0x00162402, 0x00163C01, | |
| 48 0x00164437, 0x0017CC02, 0x00180005, 0x00181816, 0x00187802, | |
| 49 0x00192C15, 0x0019A804, 0x0019C001, 0x001B5001, 0x001B580F, | |
| 50 0x001B9C07, 0x001BF402, 0x001C000E, 0x001C3C01, 0x001C4401, | |
| 51 0x001CC01B, 0x001E980B, 0x001FAC09, 0x001FD804, 0x00205804, | |
| 52 0x00206C09, 0x00209403, 0x0020A405, 0x0020C00F, 0x00216403, | |
| 53 0x00217801, 0x0023901B, 0x00240004, 0x0024E803, 0x0024F812, | |
| 54 0x00254407, 0x00258804, 0x0025C001, 0x00260403, 0x0026F001, | |
| 55 0x0026F807, 0x00271C02, 0x00272C03, 0x00275C01, 0x00278802, | |
| 56 0x0027C802, 0x0027E802, 0x00280403, 0x0028F001, 0x0028F805, | |
| 57 0x00291C02, 0x00292C03, 0x00294401, 0x0029C002, 0x0029D401, | |
| 58 0x002A0403, 0x002AF001, 0x002AF808, 0x002B1C03, 0x002B2C03, | |
| 59 0x002B8802, 0x002BC002, 0x002C0403, 0x002CF001, 0x002CF807, | |
| 60 0x002D1C02, 0x002D2C03, 0x002D5802, 0x002D8802, 0x002DC001, | |
| 61 0x002E0801, 0x002EF805, 0x002F1803, 0x002F2804, 0x002F5C01, | |
| 62 0x002FCC08, 0x00300403, 0x0030F807, 0x00311803, 0x00312804, | |
| 63 0x00315402, 0x00318802, 0x0031FC01, 0x00320802, 0x0032F001, | |
| 64 0x0032F807, 0x00331803, 0x00332804, 0x00335402, 0x00338802, | |
| 65 0x00340802, 0x0034F807, 0x00351803, 0x00352804, 0x00355C01, | |
| 66 0x00358802, 0x0035E401, 0x00360802, 0x00372801, 0x00373C06, | |
| 67 0x00375801, 0x00376008, 0x0037C803, 0x0038C401, 0x0038D007, | |
| 68 0x0038FC01, 0x00391C09, 0x00396802, 0x003AC401, 0x003AD006, | |
| 69 0x003AEC02, 0x003B2006, 0x003C041F, 0x003CD00C, 0x003DC417, | |
| 70 0x003E340B, 0x003E6424, 0x003EF80F, 0x003F380D, 0x0040AC14, | |
| 71 0x00412806, 0x00415804, 0x00417803, 0x00418803, 0x00419C07, | |
| 72 0x0041C404, 0x0042080C, 0x00423C01, 0x00426806, 0x0043EC01, | |
| 73 0x004D740C, 0x004E400A, 0x00500001, 0x0059B402, 0x005A0001, | |
| 74 0x005A6C02, 0x005BAC03, 0x005C4803, 0x005CC805, 0x005D4802, | |
| 75 0x005DC802, 0x005ED023, 0x005F6004, 0x005F7401, 0x0060000F, | |
| 76 0x0062A401, 0x0064800C, 0x0064C00C, 0x00650001, 0x00651002, | |
| 77 0x0066C011, 0x00672002, 0x00677822, 0x00685C05, 0x00687802, | |
| 78 0x0069540A, 0x0069801D, 0x0069FC01, 0x006A8007, 0x006AA006, | |
| 79 0x006C0005, 0x006CD011, 0x006D6823, 0x006E0003, 0x006E840D, | |
| 80 0x006F980E, 0x006FF004, 0x00709014, 0x0070EC05, 0x0071F802, | |
| 81 0x00730008, 0x00734019, 0x0073B401, 0x0073C803, 0x00770027, | |
| 82 0x0077F004, 0x007EF401, 0x007EFC03, 0x007F3403, 0x007F7403, | |
| 83 0x007FB403, 0x007FF402, 0x00800065, 0x0081A806, 0x0081E805, | |
| 84 0x00822805, 0x0082801A, 0x00834021, 0x00840002, 0x00840C04, | |
| 85 0x00842002, 0x00845001, 0x00845803, 0x00847806, 0x00849401, | |
| 86 0x00849C01, 0x0084A401, 0x0084B801, 0x0084E802, 0x00850005, | |
| 87 0x00852804, 0x00853C01, 0x00864264, 0x00900027, 0x0091000B, | |
| 88 0x0092704E, 0x00940200, 0x009C0475, 0x009E53B9, 0x00AD400A, | |
| 89 0x00B39406, 0x00B3BC03, 0x00B3E404, 0x00B3F802, 0x00B5C001, | |
| 90 0x00B5FC01, 0x00B7804F, 0x00B8C00C, 0x00BA001A, 0x00BA6C59, | |
| 91 0x00BC00D6, 0x00BFC00C, 0x00C00005, 0x00C02019, 0x00C0A807, | |
| 92 0x00C0D802, 0x00C0F403, 0x00C26404, 0x00C28001, 0x00C3EC01, | |
| 93 0x00C64002, 0x00C6580A, 0x00C70024, 0x00C8001F, 0x00C8A81E, | |
| 94 0x00C94001, 0x00C98020, 0x00CA2827, 0x00CB003F, 0x00CC0100, | |
| 95 0x01370040, 0x02924037, 0x0293F802, 0x02983403, 0x0299BC10, | |
| 96 0x029A7C01, 0x029BC008, 0x029C0017, 0x029C8002, 0x029E2402, | |
| 97 0x02A00801, 0x02A01801, 0x02A02C01, 0x02A08C09, 0x02A0D804, | |
| 98 0x02A1D004, 0x02A20002, 0x02A2D011, 0x02A33802, 0x02A38012, | |
| 99 0x02A3E003, 0x02A4980A, 0x02A51C0D, 0x02A57C01, 0x02A60004, | |
| 100 0x02A6CC1B, 0x02A77802, 0x02A8A40E, 0x02A90C01, 0x02A93002, | |
| 101 0x02A97004, 0x02A9DC03, 0x02A9EC01, 0x02AAC001, 0x02AAC803, | |
| 102 0x02AADC02, 0x02AAF802, 0x02AB0401, 0x02AB7802, 0x02ABAC07, | |
| 103 0x02ABD402, 0x02AF8C0B, 0x03600001, 0x036DFC02, 0x036FFC02, | |
| 104 0x037FFC01, 0x03EC7801, 0x03ECA401, 0x03EEC810, 0x03F4F802, | |
| 105 0x03F7F002, 0x03F8001A, 0x03F88007, 0x03F8C023, 0x03F95013, | |
| 106 0x03F9A004, 0x03FBFC01, 0x03FC040F, 0x03FC6807, 0x03FCEC06, | |
| 107 0x03FD6C0B, 0x03FF8007, 0x03FFA007, 0x03FFE405, 0x04040003, | |
| 108 0x0404DC09, 0x0405E411, 0x0406400C, 0x0407402E, 0x040E7C01, | |
| 109 0x040F4001, 0x04215C01, 0x04247C01, 0x0424FC01, 0x04280403, | |
| 110 0x04281402, 0x04283004, 0x0428E003, 0x0428FC01, 0x04294009, | |
| 111 0x0429FC01, 0x042CE407, 0x04400003, 0x0440E016, 0x04420003, | |
| 112 0x0442C012, 0x04440003, 0x04449C0E, 0x04450004, 0x04460003, | |
| 113 0x0446CC0E, 0x04471404, 0x045AAC0D, 0x0491C004, 0x05BD442E, | |
| 114 0x05BE3C04, 0x074000F6, 0x07440027, 0x0744A4B5, 0x07480046, | |
| 115 0x074C0057, 0x075B0401, 0x075B6C01, 0x075BEC01, 0x075C5401, | |
| 116 0x075CD401, 0x075D3C01, 0x075DBC01, 0x075E2401, 0x075EA401, | |
| 117 0x075F0C01, 0x07BBC002, 0x07C0002C, 0x07C0C064, 0x07C2800F, | |
| 118 0x07C2C40E, 0x07C3040F, 0x07C3440F, 0x07C4401F, 0x07C4C03C, | |
| 119 0x07C5C02B, 0x07C7981D, 0x07C8402B, 0x07C90009, 0x07C94002, | |
| 120 0x07CC0021, 0x07CCC006, 0x07CCDC46, 0x07CE0014, 0x07CE8025, | |
| 121 0x07CF1805, 0x07CF8011, 0x07D0003F, 0x07D10001, 0x07D108B6, | |
| 122 0x07D3E404, 0x07D4003E, 0x07D50004, 0x07D54018, 0x07D7EC46, | |
| 123 0x07D9140B, 0x07DA0046, 0x07DC0074, 0x38000401, 0x38008060, | |
| 124 0x380400F0, | |
| 125 }; | |
| 126 static const unsigned int aAscii[4] = { | |
| 127 0xFFFFFFFF, 0xFC00FFFF, 0xF8000001, 0xF8000001, | |
| 128 }; | |
| 129 | |
| 130 if( c<128 ){ | |
| 131 return ( (aAscii[c >> 5] & (1 << (c & 0x001F)))==0 ); | |
| 132 }else if( c<(1<<22) ){ | |
| 133 unsigned int key = (((unsigned int)c)<<10) | 0x000003FF; | |
| 134 int iRes = 0; | |
| 135 int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1; | |
| 136 int iLo = 0; | |
| 137 while( iHi>=iLo ){ | |
| 138 int iTest = (iHi + iLo) / 2; | |
| 139 if( key >= aEntry[iTest] ){ | |
| 140 iRes = iTest; | |
| 141 iLo = iTest+1; | |
| 142 }else{ | |
| 143 iHi = iTest-1; | |
| 144 } | |
| 145 } | |
| 146 assert( aEntry[0]<key ); | |
| 147 assert( key>=aEntry[iRes] ); | |
| 148 return (((unsigned int)c) >= ((aEntry[iRes]>>10) + (aEntry[iRes]&0x3FF))); | |
| 149 } | |
| 150 return 1; | |
| 151 } | |
| 152 | |
| 153 | |
| 154 /* | |
| 155 ** If the argument is a codepoint corresponding to a lowercase letter | |
| 156 ** in the ASCII range with a diacritic added, return the codepoint | |
| 157 ** of the ASCII letter only. For example, if passed 235 - "LATIN | |
| 158 ** SMALL LETTER E WITH DIAERESIS" - return 65 ("LATIN SMALL LETTER | |
| 159 ** E"). The resuls of passing a codepoint that corresponds to an | |
| 160 ** uppercase letter are undefined. | |
| 161 */ | |
| 162 static int remove_diacritic(int c){ | |
| 163 unsigned short aDia[] = { | |
| 164 0, 1797, 1848, 1859, 1891, 1928, 1940, 1995, | |
| 165 2024, 2040, 2060, 2110, 2168, 2206, 2264, 2286, | |
| 166 2344, 2383, 2472, 2488, 2516, 2596, 2668, 2732, | |
| 167 2782, 2842, 2894, 2954, 2984, 3000, 3028, 3336, | |
| 168 3456, 3696, 3712, 3728, 3744, 3896, 3912, 3928, | |
| 169 3968, 4008, 4040, 4106, 4138, 4170, 4202, 4234, | |
| 170 4266, 4296, 4312, 4344, 4408, 4424, 4472, 4504, | |
| 171 6148, 6198, 6264, 6280, 6360, 6429, 6505, 6529, | |
| 172 61448, 61468, 61534, 61592, 61642, 61688, 61704, 61726, | |
| 173 61784, 61800, 61836, 61880, 61914, 61948, 61998, 62122, | |
| 174 62154, 62200, 62218, 62302, 62364, 62442, 62478, 62536, | |
| 175 62554, 62584, 62604, 62640, 62648, 62656, 62664, 62730, | |
| 176 62924, 63050, 63082, 63274, 63390, | |
| 177 }; | |
| 178 char aChar[] = { | |
| 179 '\0', 'a', 'c', 'e', 'i', 'n', 'o', 'u', 'y', 'y', 'a', 'c', | |
| 180 'd', 'e', 'e', 'g', 'h', 'i', 'j', 'k', 'l', 'n', 'o', 'r', | |
| 181 's', 't', 'u', 'u', 'w', 'y', 'z', 'o', 'u', 'a', 'i', 'o', | |
| 182 'u', 'g', 'k', 'o', 'j', 'g', 'n', 'a', 'e', 'i', 'o', 'r', | |
| 183 'u', 's', 't', 'h', 'a', 'e', 'o', 'y', '\0', '\0', '\0', '\0', | |
| 184 '\0', '\0', '\0', '\0', 'a', 'b', 'd', 'd', 'e', 'f', 'g', 'h', | |
| 185 'h', 'i', 'k', 'l', 'l', 'm', 'n', 'p', 'r', 'r', 's', 't', | |
| 186 'u', 'v', 'w', 'w', 'x', 'y', 'z', 'h', 't', 'w', 'y', 'a', | |
| 187 'e', 'i', 'o', 'u', 'y', | |
| 188 }; | |
| 189 | |
| 190 unsigned int key = (((unsigned int)c)<<3) | 0x00000007; | |
| 191 int iRes = 0; | |
| 192 int iHi = sizeof(aDia)/sizeof(aDia[0]) - 1; | |
| 193 int iLo = 0; | |
| 194 while( iHi>=iLo ){ | |
| 195 int iTest = (iHi + iLo) / 2; | |
| 196 if( key >= aDia[iTest] ){ | |
| 197 iRes = iTest; | |
| 198 iLo = iTest+1; | |
| 199 }else{ | |
| 200 iHi = iTest-1; | |
| 201 } | |
| 202 } | |
| 203 assert( key>=aDia[iRes] ); | |
| 204 return ((c > (aDia[iRes]>>3) + (aDia[iRes]&0x07)) ? c : (int)aChar[iRes]); | |
| 205 } | |
| 206 | |
| 207 | |
| 208 /* | |
| 209 ** Return true if the argument interpreted as a unicode codepoint | |
| 210 ** is a diacritical modifier character. | |
| 211 */ | |
| 212 int sqlite3FtsUnicodeIsdiacritic(int c){ | |
| 213 unsigned int mask0 = 0x08029FDF; | |
| 214 unsigned int mask1 = 0x000361F8; | |
| 215 if( c<768 || c>817 ) return 0; | |
| 216 return (c < 768+32) ? | |
| 217 (mask0 & (1 << (c-768))) : | |
| 218 (mask1 & (1 << (c-768-32))); | |
| 219 } | |
| 220 | |
| 221 | |
| 222 /* | |
| 223 ** Interpret the argument as a unicode codepoint. If the codepoint | |
| 224 ** is an upper case character that has a lower case equivalent, | |
| 225 ** return the codepoint corresponding to the lower case version. | |
| 226 ** Otherwise, return a copy of the argument. | |
| 227 ** | |
| 228 ** The results are undefined if the value passed to this function | |
| 229 ** is less than zero. | |
| 230 */ | |
| 231 int sqlite3FtsUnicodeFold(int c, int bRemoveDiacritic){ | |
| 232 /* Each entry in the following array defines a rule for folding a range | |
| 233 ** of codepoints to lower case. The rule applies to a range of nRange | |
| 234 ** codepoints starting at codepoint iCode. | |
| 235 ** | |
| 236 ** If the least significant bit in flags is clear, then the rule applies | |
| 237 ** to all nRange codepoints (i.e. all nRange codepoints are upper case and | |
| 238 ** need to be folded). Or, if it is set, then the rule only applies to | |
| 239 ** every second codepoint in the range, starting with codepoint C. | |
| 240 ** | |
| 241 ** The 7 most significant bits in flags are an index into the aiOff[] | |
| 242 ** array. If a specific codepoint C does require folding, then its lower | |
| 243 ** case equivalent is ((C + aiOff[flags>>1]) & 0xFFFF). | |
| 244 ** | |
| 245 ** The contents of this array are generated by parsing the CaseFolding.txt | |
| 246 ** file distributed as part of the "Unicode Character Database". See | |
| 247 ** http://www.unicode.org for details. | |
| 248 */ | |
| 249 static const struct TableEntry { | |
| 250 unsigned short iCode; | |
| 251 unsigned char flags; | |
| 252 unsigned char nRange; | |
| 253 } aEntry[] = { | |
| 254 {65, 14, 26}, {181, 64, 1}, {192, 14, 23}, | |
| 255 {216, 14, 7}, {256, 1, 48}, {306, 1, 6}, | |
| 256 {313, 1, 16}, {330, 1, 46}, {376, 116, 1}, | |
| 257 {377, 1, 6}, {383, 104, 1}, {385, 50, 1}, | |
| 258 {386, 1, 4}, {390, 44, 1}, {391, 0, 1}, | |
| 259 {393, 42, 2}, {395, 0, 1}, {398, 32, 1}, | |
| 260 {399, 38, 1}, {400, 40, 1}, {401, 0, 1}, | |
| 261 {403, 42, 1}, {404, 46, 1}, {406, 52, 1}, | |
| 262 {407, 48, 1}, {408, 0, 1}, {412, 52, 1}, | |
| 263 {413, 54, 1}, {415, 56, 1}, {416, 1, 6}, | |
| 264 {422, 60, 1}, {423, 0, 1}, {425, 60, 1}, | |
| 265 {428, 0, 1}, {430, 60, 1}, {431, 0, 1}, | |
| 266 {433, 58, 2}, {435, 1, 4}, {439, 62, 1}, | |
| 267 {440, 0, 1}, {444, 0, 1}, {452, 2, 1}, | |
| 268 {453, 0, 1}, {455, 2, 1}, {456, 0, 1}, | |
| 269 {458, 2, 1}, {459, 1, 18}, {478, 1, 18}, | |
| 270 {497, 2, 1}, {498, 1, 4}, {502, 122, 1}, | |
| 271 {503, 134, 1}, {504, 1, 40}, {544, 110, 1}, | |
| 272 {546, 1, 18}, {570, 70, 1}, {571, 0, 1}, | |
| 273 {573, 108, 1}, {574, 68, 1}, {577, 0, 1}, | |
| 274 {579, 106, 1}, {580, 28, 1}, {581, 30, 1}, | |
| 275 {582, 1, 10}, {837, 36, 1}, {880, 1, 4}, | |
| 276 {886, 0, 1}, {902, 18, 1}, {904, 16, 3}, | |
| 277 {908, 26, 1}, {910, 24, 2}, {913, 14, 17}, | |
| 278 {931, 14, 9}, {962, 0, 1}, {975, 4, 1}, | |
| 279 {976, 140, 1}, {977, 142, 1}, {981, 146, 1}, | |
| 280 {982, 144, 1}, {984, 1, 24}, {1008, 136, 1}, | |
| 281 {1009, 138, 1}, {1012, 130, 1}, {1013, 128, 1}, | |
| 282 {1015, 0, 1}, {1017, 152, 1}, {1018, 0, 1}, | |
| 283 {1021, 110, 3}, {1024, 34, 16}, {1040, 14, 32}, | |
| 284 {1120, 1, 34}, {1162, 1, 54}, {1216, 6, 1}, | |
| 285 {1217, 1, 14}, {1232, 1, 88}, {1329, 22, 38}, | |
| 286 {4256, 66, 38}, {4295, 66, 1}, {4301, 66, 1}, | |
| 287 {7680, 1, 150}, {7835, 132, 1}, {7838, 96, 1}, | |
| 288 {7840, 1, 96}, {7944, 150, 8}, {7960, 150, 6}, | |
| 289 {7976, 150, 8}, {7992, 150, 8}, {8008, 150, 6}, | |
| 290 {8025, 151, 8}, {8040, 150, 8}, {8072, 150, 8}, | |
| 291 {8088, 150, 8}, {8104, 150, 8}, {8120, 150, 2}, | |
| 292 {8122, 126, 2}, {8124, 148, 1}, {8126, 100, 1}, | |
| 293 {8136, 124, 4}, {8140, 148, 1}, {8152, 150, 2}, | |
| 294 {8154, 120, 2}, {8168, 150, 2}, {8170, 118, 2}, | |
| 295 {8172, 152, 1}, {8184, 112, 2}, {8186, 114, 2}, | |
| 296 {8188, 148, 1}, {8486, 98, 1}, {8490, 92, 1}, | |
| 297 {8491, 94, 1}, {8498, 12, 1}, {8544, 8, 16}, | |
| 298 {8579, 0, 1}, {9398, 10, 26}, {11264, 22, 47}, | |
| 299 {11360, 0, 1}, {11362, 88, 1}, {11363, 102, 1}, | |
| 300 {11364, 90, 1}, {11367, 1, 6}, {11373, 84, 1}, | |
| 301 {11374, 86, 1}, {11375, 80, 1}, {11376, 82, 1}, | |
| 302 {11378, 0, 1}, {11381, 0, 1}, {11390, 78, 2}, | |
| 303 {11392, 1, 100}, {11499, 1, 4}, {11506, 0, 1}, | |
| 304 {42560, 1, 46}, {42624, 1, 24}, {42786, 1, 14}, | |
| 305 {42802, 1, 62}, {42873, 1, 4}, {42877, 76, 1}, | |
| 306 {42878, 1, 10}, {42891, 0, 1}, {42893, 74, 1}, | |
| 307 {42896, 1, 4}, {42912, 1, 10}, {42922, 72, 1}, | |
| 308 {65313, 14, 26}, | |
| 309 }; | |
| 310 static const unsigned short aiOff[] = { | |
| 311 1, 2, 8, 15, 16, 26, 28, 32, | |
| 312 37, 38, 40, 48, 63, 64, 69, 71, | |
| 313 79, 80, 116, 202, 203, 205, 206, 207, | |
| 314 209, 210, 211, 213, 214, 217, 218, 219, | |
| 315 775, 7264, 10792, 10795, 23228, 23256, 30204, 54721, | |
| 316 54753, 54754, 54756, 54787, 54793, 54809, 57153, 57274, | |
| 317 57921, 58019, 58363, 61722, 65268, 65341, 65373, 65406, | |
| 318 65408, 65410, 65415, 65424, 65436, 65439, 65450, 65462, | |
| 319 65472, 65476, 65478, 65480, 65482, 65488, 65506, 65511, | |
| 320 65514, 65521, 65527, 65528, 65529, | |
| 321 }; | |
| 322 | |
| 323 int ret = c; | |
| 324 | |
| 325 assert( c>=0 ); | |
| 326 assert( sizeof(unsigned short)==2 && sizeof(unsigned char)==1 ); | |
| 327 | |
| 328 if( c<128 ){ | |
| 329 if( c>='A' && c<='Z' ) ret = c + ('a' - 'A'); | |
| 330 }else if( c<65536 ){ | |
| 331 int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1; | |
| 332 int iLo = 0; | |
| 333 int iRes = -1; | |
| 334 | |
| 335 while( iHi>=iLo ){ | |
| 336 int iTest = (iHi + iLo) / 2; | |
| 337 int cmp = (c - aEntry[iTest].iCode); | |
| 338 if( cmp>=0 ){ | |
| 339 iRes = iTest; | |
| 340 iLo = iTest+1; | |
| 341 }else{ | |
| 342 iHi = iTest-1; | |
| 343 } | |
| 344 } | |
| 345 assert( iRes<0 || c>=aEntry[iRes].iCode ); | |
| 346 | |
| 347 if( iRes>=0 ){ | |
| 348 const struct TableEntry *p = &aEntry[iRes]; | |
| 349 if( c<(p->iCode + p->nRange) && 0==(0x01 & p->flags & (p->iCode ^ c)) ){ | |
| 350 ret = (c + (aiOff[p->flags>>1])) & 0x0000FFFF; | |
| 351 assert( ret>0 ); | |
| 352 } | |
| 353 } | |
| 354 | |
| 355 if( bRemoveDiacritic ) ret = remove_diacritic(ret); | |
| 356 } | |
| 357 | |
| 358 else if( c>=66560 && c<66600 ){ | |
| 359 ret = c + 40; | |
| 360 } | |
| 361 | |
| 362 return ret; | |
| 363 } | |
| 364 #endif /* defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4) */ | |
| 365 #endif /* !defined(SQLITE_DISABLE_FTS3_UNICODE) */ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2363173002:
[sqlite] Remove obsolete reference version 3.8.7.4. (Closed)
