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Diffstat (limited to 'src/unicode.c')
| -rw-r--r-- | src/unicode.c | 463 |
1 files changed, 463 insertions, 0 deletions
diff --git a/src/unicode.c b/src/unicode.c new file mode 100644 index 0000000..21c5ca3 --- /dev/null +++ b/src/unicode.c @@ -0,0 +1,463 @@ +/* +** Copyright (c) 2013 D. Richard Hipp +** +** This program is free software; you can redistribute it and/or +** modify it under the terms of the Simplified BSD License (also +** known as the "2-Clause License" or "FreeBSD License".) +** +** This program is distributed in the hope that it will be useful, +** but without any warranty; without even the implied warranty of +** merchantability or fitness for a particular purpose. +** +** Author contact information: +** drh@hwaci.com +** http://www.hwaci.com/drh/ +** +******************************************************************************* +** +** This file is copied from ext/fts5/fts5_unicode2.c of SQLite3 with +** minor changes. +*/ +#include "config.h" +#include "unicode.h" + +/* +** Return true if the argument corresponds to a unicode codepoint +** classified as either a letter or a number. Otherwise false. +** +** The results are undefined if the value passed to this function +** is less than zero. +*/ +int unicode_isalnum(int c){ + /* Each unsigned integer in the following array corresponds to a contiguous + ** range of unicode codepoints that are not either letters or numbers (i.e. + ** codepoints for which this function should return 0). + ** + ** The most significant 22 bits in each 32-bit value contain the first + ** codepoint in the range. The least significant 10 bits are used to store + ** the size of the range (always at least 1). In other words, the value + ** ((C<<22) + N) represents a range of N codepoints starting with codepoint + ** C. It is not possible to represent a range larger than 1023 codepoints + ** using this format. + */ + static const unsigned int aEntry[] = { + 0x00000030, 0x0000E807, 0x00016C06, 0x0001EC2F, 0x0002AC07, + 0x0002D001, 0x0002D803, 0x0002EC01, 0x0002FC01, 0x00035C01, + 0x0003DC01, 0x000B0804, 0x000B480E, 0x000B9407, 0x000BB401, + 0x000BBC81, 0x000DD401, 0x000DF801, 0x000E1002, 0x000E1C01, + 0x000FD801, 0x00120808, 0x00156806, 0x00162402, 0x00163403, + 0x00164437, 0x0017CC02, 0x00180020, 0x00192C15, 0x0019A804, + 0x0019C001, 0x001B5001, 0x001B580F, 0x001B9C07, 0x001BF402, + 0x001C000E, 0x001C3C01, 0x001C4401, 0x001CC01B, 0x001E980B, + 0x001FAC09, 0x001FD804, 0x001FF403, 0x00205804, 0x00206C09, + 0x00209403, 0x0020A405, 0x0020C00F, 0x00216403, 0x00217801, + 0x00222001, 0x00224002, 0x00225C09, 0x0023283A, 0x0024E803, + 0x0024F812, 0x00254407, 0x00258804, 0x0025C001, 0x00260403, + 0x0026F001, 0x0026F807, 0x00271C02, 0x00272C03, 0x00275C01, + 0x00278802, 0x0027C802, 0x0027E802, 0x0027F402, 0x00280403, + 0x0028F001, 0x0028F805, 0x00291C02, 0x00292C03, 0x00294401, + 0x0029C002, 0x0029D402, 0x002A0403, 0x002AF001, 0x002AF808, + 0x002B1C03, 0x002B2C03, 0x002B8802, 0x002BC002, 0x002BE806, + 0x002C0403, 0x002CF001, 0x002CF807, 0x002D1C02, 0x002D2C03, + 0x002D5403, 0x002D8802, 0x002DC001, 0x002E0801, 0x002EF805, + 0x002F1803, 0x002F2804, 0x002F5C01, 0x002FCC08, 0x00300005, + 0x0030F001, 0x0030F807, 0x00311803, 0x00312804, 0x00315402, + 0x00318802, 0x0031DC01, 0x0031FC01, 0x00320404, 0x0032F001, + 0x0032F807, 0x00331803, 0x00332804, 0x00335402, 0x00338802, + 0x0033CC01, 0x00340004, 0x0034EC02, 0x0034F807, 0x00351803, + 0x00352804, 0x00353C01, 0x00355C01, 0x00358802, 0x0035E401, + 0x00360403, 0x00372801, 0x00373C06, 0x00375801, 0x00376008, + 0x0037C803, 0x0038C401, 0x0038D007, 0x0038FC01, 0x00391C09, + 0x00396802, 0x003AC401, 0x003AD009, 0x003B2007, 0x003C041F, + 0x003CD00C, 0x003DC417, 0x003E340B, 0x003E6424, 0x003EF80F, + 0x003F380D, 0x0040AC14, 0x00412806, 0x00415804, 0x00417803, + 0x00418803, 0x00419C07, 0x0041C404, 0x0042080C, 0x00423C01, + 0x00426806, 0x0043EC01, 0x004D740C, 0x004E400A, 0x00500001, + 0x0059B402, 0x005A0001, 0x005A6C02, 0x005BAC03, 0x005C4804, + 0x005CC805, 0x005D4802, 0x005DC802, 0x005ED023, 0x005F6004, + 0x005F7401, 0x00600010, 0x00621402, 0x0062A401, 0x0064800C, + 0x0064C00C, 0x00650001, 0x00651002, 0x00677822, 0x00685C05, + 0x00687802, 0x0069540A, 0x0069801D, 0x0069FC01, 0x006A8007, + 0x006AA006, 0x006AC02E, 0x006B800C, 0x006C0005, 0x006CD011, + 0x006D3802, 0x006D6829, 0x006E840D, 0x006F980E, 0x006FF004, + 0x00709014, 0x0070EC05, 0x0071F802, 0x00730008, 0x00734019, + 0x0073B401, 0x0073D001, 0x0073DC03, 0x00770040, 0x007EF401, + 0x007EFC03, 0x007F3403, 0x007F7403, 0x007FB403, 0x007FF402, + 0x00800065, 0x0081980A, 0x0081E805, 0x00822805, 0x00828022, + 0x00834021, 0x00840002, 0x00840C04, 0x00842002, 0x00845001, + 0x00845803, 0x00847806, 0x00849401, 0x00849C01, 0x0084A401, + 0x0084B801, 0x0084E802, 0x00850005, 0x00852804, 0x00853C01, + 0x00862802, 0x0086429A, 0x0091000B, 0x0092704E, 0x00940276, + 0x009E53E0, 0x00ADD88A, 0x00B39406, 0x00B3BC03, 0x00B3E404, + 0x00B3F802, 0x00B5C001, 0x00B5FC01, 0x00B7804F, 0x00B8C02E, + 0x00BA001A, 0x00BA6C59, 0x00BC00D6, 0x00BFC015, 0x00C02019, + 0x00C0A807, 0x00C0D802, 0x00C0F403, 0x00C26404, 0x00C28001, + 0x00C3EC01, 0x00C64002, 0x00C6580A, 0x00C70026, 0x00C7BC01, + 0x00C8001F, 0x00C8A81E, 0x00C94001, 0x00C98020, 0x00CA2827, + 0x00CB0140, 0x01370040, 0x02924037, 0x0293F802, 0x02983403, + 0x0299BC10, 0x029A7802, 0x029BC008, 0x029C0017, 0x029C8002, + 0x029E2402, 0x02A00801, 0x02A01801, 0x02A02C01, 0x02A08C0A, + 0x02A0D804, 0x02A1D004, 0x02A20002, 0x02A2D012, 0x02A33802, + 0x02A38012, 0x02A3E003, 0x02A3F001, 0x02A3FC01, 0x02A4980A, + 0x02A51C0D, 0x02A57C01, 0x02A60004, 0x02A6CC1B, 0x02A77802, + 0x02A79401, 0x02A8A40E, 0x02A90C01, 0x02A93002, 0x02A97004, + 0x02A9DC03, 0x02A9EC03, 0x02AAC001, 0x02AAC803, 0x02AADC02, + 0x02AAF802, 0x02AB0401, 0x02AB7802, 0x02ABAC07, 0x02ABD402, + 0x02AD6C01, 0x02ADA802, 0x02AF8C0B, 0x03600001, 0x036DFC02, + 0x036FFC02, 0x037FFC01, 0x03EC7801, 0x03ECA401, 0x03EEC821, + 0x03F4F812, 0x03F64002, 0x03F72008, 0x03F7F01E, 0x03F88033, + 0x03F95013, 0x03F9A004, 0x03FBFC01, 0x03FC040F, 0x03FC6807, + 0x03FCEC06, 0x03FD6C0B, 0x03FF8007, 0x03FFA007, 0x03FFE405, + 0x04040003, 0x0404DC09, 0x0405E411, 0x04063003, 0x0406400D, + 0x04068001, 0x0407402E, 0x040B8001, 0x040DD805, 0x040E7C01, + 0x040F4001, 0x0415BC01, 0x04215C01, 0x0421DC02, 0x04247C01, + 0x0424FC01, 0x04280403, 0x04281402, 0x04283004, 0x0428E003, + 0x0428FC01, 0x04294009, 0x0429FC01, 0x042B2001, 0x042B9402, + 0x042BC007, 0x042CE407, 0x042E6404, 0x04349004, 0x0435A406, + 0x04363802, 0x043AAC03, 0x043B4009, 0x043BE806, 0x043D180B, + 0x043D5405, 0x043E0808, 0x04400003, 0x0440E016, 0x0441C001, + 0x0441CC02, 0x0441FC04, 0x0442C013, 0x04433401, 0x04440003, + 0x04449C0E, 0x04450004, 0x04451402, 0x0445CC03, 0x04460003, + 0x0446CC0E, 0x0447140B, 0x04476C01, 0x04477403, 0x0448B013, + 0x04490401, 0x044AA401, 0x044B7C0C, 0x044C0004, 0x044CEC02, + 0x044CF807, 0x044D1C02, 0x044D2C03, 0x044D5C01, 0x044D8802, + 0x044D9807, 0x044DC005, 0x044EE009, 0x044F0801, 0x044F1401, + 0x044F1C04, 0x044F3005, 0x044F4801, 0x044F5002, 0x044F5C02, + 0x044F8402, 0x0450D412, 0x04512C05, 0x04516802, 0x04517402, + 0x0452C014, 0x04531801, 0x0456BC07, 0x0456E020, 0x04577002, + 0x0458C014, 0x0459800D, 0x045AAC0D, 0x045AE401, 0x045C740F, + 0x045CF004, 0x0460B010, 0x0464C006, 0x0464DC02, 0x0464EC04, + 0x04650001, 0x04650805, 0x04674407, 0x04676807, 0x04678801, + 0x04679001, 0x0468040A, 0x0468CC07, 0x0468EC0D, 0x0469440B, + 0x046A2813, 0x046A7805, 0x046C000A, 0x046D8008, 0x046F8401, + 0x0470BC08, 0x0470E008, 0x04710405, 0x0471C002, 0x04724816, + 0x0472A40E, 0x0474C406, 0x0474E801, 0x0474F002, 0x0474FC07, + 0x04751C01, 0x04762805, 0x04764002, 0x04764C05, 0x047BCC06, + 0x047C0002, 0x047C0C01, 0x047CD007, 0x047CF812, 0x047D6801, + 0x047F541D, 0x047FFC01, 0x0491C005, 0x04BFC402, 0x04D0C011, + 0x04D11C0F, 0x05847812, 0x05A9B802, 0x05ABC006, 0x05ACC010, + 0x05AD1002, 0x05B5B403, 0x05BA5C04, 0x05BD3C01, 0x05BD4437, + 0x05BE3C04, 0x05BF8801, 0x05BF9001, 0x05BFC002, 0x06F27008, + 0x073000F0, 0x0733E803, 0x073401B4, 0x073AE817, 0x073B8011, + 0x073C002E, 0x073CC017, 0x073D4074, 0x074000F6, 0x07440027, + 0x0744A4C2, 0x07480046, 0x074C0057, 0x075B0401, 0x075B6C01, + 0x075BEC01, 0x075C5401, 0x075CD401, 0x075D3C01, 0x075DBC01, + 0x075E2401, 0x075EA401, 0x075F0C01, 0x0760028C, 0x076A6C05, + 0x076A840F, 0x07800007, 0x07802011, 0x07806C07, 0x07808C02, + 0x07809805, 0x07823C01, 0x0784C007, 0x07853C01, 0x078AB801, + 0x078BB004, 0x078BFC01, 0x0793B004, 0x0797B802, 0x0797FC01, + 0x079B8C01, 0x079B9801, 0x079BB802, 0x079BD401, 0x07A34007, + 0x07A51007, 0x07A57802, 0x07B2B001, 0x07B2C001, 0x07B4B801, + 0x07BBC002, 0x07C0002C, 0x07C0C064, 0x07C2800F, 0x07C2C40F, + 0x07C3040F, 0x07C34425, 0x07C434A1, 0x07C7981D, 0x07C8402C, + 0x07C90009, 0x07C94002, 0x07C98006, 0x07CC03D9, 0x07DB7011, + 0x07DBC00D, 0x07DC00DA, 0x07DF800C, 0x07DFC001, 0x07E0000C, + 0x07E04038, 0x07E1400A, 0x07E18028, 0x07E2401E, 0x07E2C00C, + 0x07E30002, 0x07E34009, 0x07E40158, 0x07E9800E, 0x07E9C00D, + 0x07EA000B, 0x07EA3839, 0x07EB2001, 0x07EB3410, 0x07EB7C0C, + 0x07EBBC0A, 0x07EC0093, 0x07EE505C, 0x07EFE801, 0x38000401, + 0x38008060, 0x380400F0, + }; + static const unsigned int aAscii[4] = { + 0xFFFFFFFF, 0xFC00FFFF, 0xF8000001, 0xF8000001, + }; + + if( (unsigned int)c<128 ){ + return ( (aAscii[c >> 5] & ((unsigned int)1 << (c & 0x001F)))==0 ); + }else if( (unsigned int)c<(1<<22) ){ + unsigned int key = (((unsigned int)c)<<10) | 0x000003FF; + int iRes = 0; + int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1; + int iLo = 0; + while( iHi>=iLo ){ + int iTest = (iHi + iLo) / 2; + if( key >= aEntry[iTest] ){ + iRes = iTest; + iLo = iTest+1; + }else{ + iHi = iTest-1; + } + } + assert( aEntry[0]<key ); + assert( key>=aEntry[iRes] ); + return (((unsigned int)c) >= ((aEntry[iRes]>>10) + (aEntry[iRes]&0x3FF))); + } + return 1; +} + + +/* +** If the argument is a codepoint corresponding to a lowercase letter +** in the ASCII range with a diacritic added, return the codepoint +** of the ASCII letter only. For example, if passed 235 - "LATIN +** SMALL LETTER E WITH DIAERESIS" - return 65 ("LATIN SMALL LETTER +** E"). The results of passing a codepoint that corresponds to an +** uppercase letter are undefined. +*/ +static int unicode_remove_diacritic(int c, int bComplex){ + static const unsigned short aDia[] = { + 0, 1797, 1848, 1859, 1891, 1928, 1940, 1995, + 2024, 2040, 2060, 2110, 2168, 2206, 2264, 2286, + 2344, 2383, 2472, 2488, 2516, 2596, 2668, 2732, + 2782, 2842, 2894, 2954, 2984, 3000, 3028, 3336, + 3456, 3696, 3712, 3728, 3744, 3766, 3832, 3896, + 3912, 3928, 3944, 3968, 4008, 4040, 4056, 4106, + 4138, 4170, 4202, 4234, 4266, 4296, 4312, 4344, + 4408, 4424, 4442, 4472, 4488, 4504, 6148, 6198, + 6264, 6280, 6360, 6429, 6505, 6529, 61448, 61468, + 61512, 61534, 61592, 61610, 61642, 61672, 61688, 61704, + 61726, 61784, 61800, 61816, 61836, 61880, 61896, 61914, + 61948, 61998, 62062, 62122, 62154, 62184, 62200, 62218, + 62252, 62302, 62364, 62410, 62442, 62478, 62536, 62554, + 62584, 62604, 62640, 62648, 62656, 62664, 62730, 62766, + 62830, 62890, 62924, 62974, 63032, 63050, 63082, 63118, + 63182, 63242, 63274, 63310, 63368, 63390, + }; +#define HIBIT ((unsigned char)0x80) + static const unsigned char aChar[] = { + '\0', 'a', 'c', 'e', 'i', 'n', + 'o', 'u', 'y', 'y', 'a', 'c', + 'd', 'e', 'e', 'g', 'h', 'i', + 'j', 'k', 'l', 'n', 'o', 'r', + 's', 't', 'u', 'u', 'w', 'y', + 'z', 'o', 'u', 'a', 'i', 'o', + 'u', 'u'|HIBIT, 'a'|HIBIT, 'g', 'k', 'o', + 'o'|HIBIT, 'j', 'g', 'n', 'a'|HIBIT, 'a', + 'e', 'i', 'o', 'r', 'u', 's', + 't', 'h', 'a', 'e', 'o'|HIBIT, 'o', + 'o'|HIBIT, 'y', '\0', '\0', '\0', '\0', + '\0', '\0', '\0', '\0', 'a', 'b', + 'c'|HIBIT, 'd', 'd', 'e'|HIBIT, 'e', 'e'|HIBIT, + 'f', 'g', 'h', 'h', 'i', 'i'|HIBIT, + 'k', 'l', 'l'|HIBIT, 'l', 'm', 'n', + 'o'|HIBIT, 'p', 'r', 'r'|HIBIT, 'r', 's', + 's'|HIBIT, 't', 'u', 'u'|HIBIT, 'v', 'w', + 'w', 'x', 'y', 'z', 'h', 't', + 'w', 'y', 'a', 'a'|HIBIT, 'a'|HIBIT, 'a'|HIBIT, + 'e', 'e'|HIBIT, 'e'|HIBIT, 'i', 'o', 'o'|HIBIT, + 'o'|HIBIT, 'o'|HIBIT, 'u', 'u'|HIBIT, 'u'|HIBIT, 'y', + }; + + unsigned int key = (((unsigned int)c)<<3) | 0x00000007; + int iRes = 0; + int iHi = sizeof(aDia)/sizeof(aDia[0]) - 1; + int iLo = 0; + while( iHi>=iLo ){ + int iTest = (iHi + iLo) / 2; + if( key >= aDia[iTest] ){ + iRes = iTest; + iLo = iTest+1; + }else{ + iHi = iTest-1; + } + } + assert( key>=aDia[iRes] ); + if( bComplex==0 && (aChar[iRes] & 0x80) ) return c; + return (c > (aDia[iRes]>>3) + (aDia[iRes]&0x07)) ? c : ((int)aChar[iRes] & 0x7F); +} + + +/* +** Return true if the argument interpreted as a unicode codepoint +** is a diacritical modifier character. +*/ +int unicode_is_diacritic(int c){ + unsigned int mask0 = 0x08029FDF; + unsigned int mask1 = 0x000361F8; + if( c<768 || c>817 ) return 0; + return (c < 768+32) ? + (mask0 & ((unsigned int)1 << (c-768))) : + (mask1 & ((unsigned int)1 << (c-768-32))); +} + + +/* +** Interpret the argument as a unicode codepoint. If the codepoint +** is an upper case character that has a lower case equivalent, +** return the codepoint corresponding to the lower case version. +** Otherwise, return a copy of the argument. +** +** The results are undefined if the value passed to this function +** is less than zero. +*/ +int unicode_fold(int c, int eRemoveDiacritic){ + /* Each entry in the following array defines a rule for folding a range + ** of codepoints to lower case. The rule applies to a range of nRange + ** codepoints starting at codepoint iCode. + ** + ** If the least significant bit in flags is clear, then the rule applies + ** to all nRange codepoints (i.e. all nRange codepoints are upper case and + ** need to be folded). Or, if it is set, then the rule only applies to + ** every second codepoint in the range, starting with codepoint C. + ** + ** The 7 most significant bits in flags are an index into the aiOff[] + ** array. If a specific codepoint C does require folding, then its lower + ** case equivalent is ((C + aiOff[flags>>1]) & 0xFFFF). + ** + ** The contents of this array are generated by parsing the CaseFolding.txt + ** file distributed as part of the "Unicode Character Database". See + ** http://www.unicode.org for details. + */ + static const struct TableEntry { + unsigned short iCode; + unsigned char flags; + unsigned char nRange; + } aEntry[] = { + {65, 16, 26}, {181, 70, 1}, {192, 16, 23}, + {216, 16, 7}, {256, 1, 48}, {306, 1, 6}, + {313, 1, 16}, {330, 1, 46}, {376, 168, 1}, + {377, 1, 6}, {383, 156, 1}, {385, 56, 1}, + {386, 1, 4}, {390, 50, 1}, {391, 0, 1}, + {393, 48, 2}, {395, 0, 1}, {398, 38, 1}, + {399, 44, 1}, {400, 46, 1}, {401, 0, 1}, + {403, 48, 1}, {404, 52, 1}, {406, 58, 1}, + {407, 54, 1}, {408, 0, 1}, {412, 58, 1}, + {413, 60, 1}, {415, 62, 1}, {416, 1, 6}, + {422, 66, 1}, {423, 0, 1}, {425, 66, 1}, + {428, 0, 1}, {430, 66, 1}, {431, 0, 1}, + {433, 64, 2}, {435, 1, 4}, {439, 68, 1}, + {440, 0, 1}, {444, 0, 1}, {452, 2, 1}, + {453, 0, 1}, {455, 2, 1}, {456, 0, 1}, + {458, 2, 1}, {459, 1, 18}, {478, 1, 18}, + {497, 2, 1}, {498, 1, 4}, {502, 174, 1}, + {503, 186, 1}, {504, 1, 40}, {544, 162, 1}, + {546, 1, 18}, {570, 78, 1}, {571, 0, 1}, + {573, 160, 1}, {574, 76, 1}, {577, 0, 1}, + {579, 158, 1}, {580, 34, 1}, {581, 36, 1}, + {582, 1, 10}, {837, 42, 1}, {880, 1, 4}, + {886, 0, 1}, {895, 42, 1}, {902, 22, 1}, + {904, 20, 3}, {908, 32, 1}, {910, 30, 2}, + {913, 16, 17}, {931, 16, 9}, {962, 0, 1}, + {975, 4, 1}, {976, 192, 1}, {977, 194, 1}, + {981, 198, 1}, {982, 196, 1}, {984, 1, 24}, + {1008, 188, 1}, {1009, 190, 1}, {1012, 182, 1}, + {1013, 180, 1}, {1015, 0, 1}, {1017, 204, 1}, + {1018, 0, 1}, {1021, 162, 3}, {1024, 40, 16}, + {1040, 16, 32}, {1120, 1, 34}, {1162, 1, 54}, + {1216, 6, 1}, {1217, 1, 14}, {1232, 1, 96}, + {1329, 28, 38}, {4256, 74, 38}, {4295, 74, 1}, + {4301, 74, 1}, {5112, 202, 6}, {7296, 138, 1}, + {7297, 140, 1}, {7298, 142, 1}, {7299, 146, 2}, + {7301, 144, 1}, {7302, 148, 1}, {7303, 150, 1}, + {7304, 108, 1}, {7305, 0, 1}, {7312, 154, 43}, + {7357, 154, 3}, {7680, 1, 150}, {7835, 184, 1}, + {7838, 128, 1}, {7840, 1, 96}, {7944, 202, 8}, + {7960, 202, 6}, {7976, 202, 8}, {7992, 202, 8}, + {8008, 202, 6}, {8025, 203, 8}, {8040, 202, 8}, + {8072, 202, 8}, {8088, 202, 8}, {8104, 202, 8}, + {8120, 202, 2}, {8122, 178, 2}, {8124, 200, 1}, + {8126, 136, 1}, {8136, 176, 4}, {8140, 200, 1}, + {8147, 132, 1}, {8152, 202, 2}, {8154, 172, 2}, + {8163, 134, 1}, {8168, 202, 2}, {8170, 170, 2}, + {8172, 204, 1}, {8184, 164, 2}, {8186, 166, 2}, + {8188, 200, 1}, {8486, 130, 1}, {8490, 124, 1}, + {8491, 126, 1}, {8498, 14, 1}, {8544, 8, 16}, + {8579, 0, 1}, {9398, 10, 26}, {11264, 28, 48}, + {11360, 0, 1}, {11362, 120, 1}, {11363, 152, 1}, + {11364, 122, 1}, {11367, 1, 6}, {11373, 116, 1}, + {11374, 118, 1}, {11375, 112, 1}, {11376, 114, 1}, + {11378, 0, 1}, {11381, 0, 1}, {11390, 110, 2}, + {11392, 1, 100}, {11499, 1, 4}, {11506, 0, 1}, + {42560, 1, 46}, {42624, 1, 28}, {42786, 1, 14}, + {42802, 1, 62}, {42873, 1, 4}, {42877, 106, 1}, + {42878, 1, 10}, {42891, 0, 1}, {42893, 96, 1}, + {42896, 1, 4}, {42902, 1, 20}, {42922, 88, 1}, + {42923, 84, 1}, {42924, 86, 1}, {42925, 92, 1}, + {42926, 88, 1}, {42928, 100, 1}, {42929, 94, 1}, + {42930, 98, 1}, {42931, 72, 1}, {42932, 1, 16}, + {42948, 190, 1}, {42949, 90, 1}, {42950, 104, 1}, + {42951, 1, 4}, {42955, 82, 1}, {42956, 1, 16}, + {42972, 80, 1}, {42997, 0, 1}, {43888, 102, 80}, + {64261, 0, 1}, {65313, 16, 26}, + }; + static const unsigned short aiOff[] = { + 1, 2, 8, 15, 16, 26, 27, 28, + 32, 34, 37, 38, 39, 40, 48, 63, + 64, 69, 71, 79, 80, 116, 202, 203, + 205, 206, 207, 209, 210, 211, 213, 214, + 217, 218, 219, 775, 928, 7264, 10792, 10795, + 22975, 23193, 23217, 23221, 23228, 23229, 23231, 23254, + 23256, 23275, 23278, 26672, 30152, 30204, 35267, 54721, + 54753, 54754, 54756, 54787, 54793, 54809, 57153, 57274, + 57921, 58019, 58301, 58317, 58363, 59314, 59315, 59324, + 59325, 59326, 59332, 59356, 61722, 62528, 65268, 65341, + 65373, 65406, 65408, 65410, 65415, 65424, 65436, 65439, + 65450, 65462, 65472, 65476, 65478, 65480, 65482, 65488, + 65506, 65511, 65514, 65521, 65527, 65528, 65529, + }; + + int ret = c; + + assert( sizeof(unsigned short)==2 && sizeof(unsigned char)==1 ); + + if( c<128 ){ + if( c>='A' && c<='Z' ) ret = c + ('a' - 'A'); + }else if( c<65536 ){ + const struct TableEntry *p; + int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1; + int iLo = 0; + int iRes = -1; + + assert( c>aEntry[0].iCode ); + while( iHi>=iLo ){ + int iTest = (iHi + iLo) / 2; + int cmp = (c - aEntry[iTest].iCode); + if( cmp>=0 ){ + iRes = iTest; + iLo = iTest+1; + }else{ + iHi = iTest-1; + } + } + + assert( iRes>=0 && c>=aEntry[iRes].iCode ); + p = &aEntry[iRes]; + if( c<(p->iCode + p->nRange) && 0==(0x01 & p->flags & (p->iCode ^ c)) ){ + ret = (c + (aiOff[p->flags>>1])) & 0x0000FFFF; + assert( ret>0 ); + } + + if( eRemoveDiacritic ){ + ret = unicode_remove_diacritic(ret, eRemoveDiacritic==2); + } + } + + else if( c>=66560 && c<66600 ){ + ret = c + 40; + } + else if( c>=66736 && c<66772 ){ + ret = c + 40; + } + else if( c>=66928 && c<66939 ){ + ret = c + 39; + } + else if( c>=66940 && c<66955 ){ + ret = c + 39; + } + else if( c>=66956 && c<66963 ){ + ret = c + 39; + } + else if( c>=66964 && c<66966 ){ + ret = c + 39; + } + else if( c>=68736 && c<68787 ){ + ret = c + 64; + } + else if( c>=68944 && c<68966 ){ + ret = c + 32; + } + else if( c>=71840 && c<71872 ){ + ret = c + 32; + } + else if( c>=93760 && c<93792 ){ + ret = c + 32; + } + else if( c>=93856 && c<93881 ){ + ret = c + 27; + } + else if( c>=125184 && c<125218 ){ + ret = c + 34; + } + + return ret; +} |