/*
** 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;
}