**diff options**

Diffstat (limited to 'enc/utf_8.c')

-rw-r--r-- | enc/utf_8.c | 706 |

1 files changed, 699 insertions, 7 deletions

diff --git a/enc/utf_8.c b/enc/utf_8.c index 3b9387c..24f5fab 100644 --- a/enc/utf_8.c +++ b/enc/utf_8.c @@ -241,6 +241,657 @@ mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED) ONIGENC_CONSTRUCT_MBCLEN_INVALID(); } +static OnigCodePoint mbc_to_code(const UChar* p, const UChar* end, int *precise_ret, OnigEncoding enc); + +/* generated from GraphemeBreakProperty-5.1.0.txt + * Since CR LF is handled in another layer such as IO with text mode, + * CR and LF are merged into CONTROL. */ +#define GRAPHEME_BIT_CONTROL 0x001 +#define GRAPHEME_BIT_EXTEND 0x002 +#define GRAPHEME_BIT_PREPEND 0x004 +#define GRAPHEME_BIT_SPACINGMARK 0x008 +#define GRAPHEME_BIT_L 0x010 +#define GRAPHEME_BIT_V 0x020 +#define GRAPHEME_BIT_T 0x040 +#define GRAPHEME_BIT_LV 0x080 +#define GRAPHEME_BIT_LVT 0x100 +const struct graphme_table_t { /* codepoint_min <= c < codepoint_min+num_codepoints */ + OnigCodePoint codepoint_min; + unsigned short num_codepoints; + unsigned short properties; +} graphme_table[] = { + {0x00000,32,0x001}, {0x0007F,33,0x001}, + {0x000AD,1,0x001}, {0x00300,112,0x002}, + {0x00483,7,0x002}, {0x00591,45,0x002}, + {0x005BF,1,0x002}, {0x005C1,2,0x002}, + {0x005C4,2,0x002}, {0x005C7,1,0x002}, + {0x00600,4,0x001}, {0x00610,11,0x002}, + {0x0064B,20,0x002}, {0x00670,1,0x002}, + {0x006D6,7,0x002}, {0x006DD,1,0x001}, + {0x006DE,7,0x002}, {0x006E7,2,0x002}, + {0x006EA,4,0x002}, {0x0070F,1,0x001}, + {0x00711,1,0x002}, {0x00730,27,0x002}, + {0x007A6,11,0x002}, {0x007EB,9,0x002}, + {0x00901,2,0x002}, {0x00903,1,0x008}, + {0x0093C,1,0x002}, {0x0093E,3,0x008}, + {0x00941,8,0x002}, {0x00949,4,0x008}, + {0x0094D,1,0x002}, {0x00951,4,0x002}, + {0x00962,2,0x002}, {0x00981,1,0x002}, + {0x00982,2,0x008}, {0x009BC,1,0x002}, + {0x009BE,1,0x002}, {0x009BF,2,0x008}, + {0x009C1,4,0x002}, {0x009C7,2,0x008}, + {0x009CB,2,0x008}, {0x009CD,1,0x002}, + {0x009D7,1,0x002}, {0x009E2,2,0x002}, + {0x00A01,2,0x002}, {0x00A03,1,0x008}, + {0x00A3C,1,0x002}, {0x00A3E,3,0x008}, + {0x00A41,2,0x002}, {0x00A47,2,0x002}, + {0x00A4B,3,0x002}, {0x00A51,1,0x002}, + {0x00A70,2,0x002}, {0x00A75,1,0x002}, + {0x00A81,2,0x002}, {0x00A83,1,0x008}, + {0x00ABC,1,0x002}, {0x00ABE,3,0x008}, + {0x00AC1,5,0x002}, {0x00AC7,2,0x002}, + {0x00AC9,1,0x008}, {0x00ACB,2,0x008}, + {0x00ACD,1,0x002}, {0x00AE2,2,0x002}, + {0x00B01,1,0x002}, {0x00B02,2,0x008}, + {0x00B3C,1,0x002}, {0x00B3E,2,0x002}, + {0x00B40,1,0x008}, {0x00B41,4,0x002}, + {0x00B47,2,0x008}, {0x00B4B,2,0x008}, + {0x00B4D,1,0x002}, {0x00B56,2,0x002}, + {0x00B62,2,0x002}, {0x00B82,1,0x002}, + {0x00BBE,1,0x002}, {0x00BBF,1,0x008}, + {0x00BC0,1,0x002}, {0x00BC1,2,0x008}, + {0x00BC6,3,0x008}, {0x00BCA,3,0x008}, + {0x00BCD,1,0x002}, {0x00BD7,1,0x002}, + {0x00C01,3,0x008}, {0x00C3E,3,0x002}, + {0x00C41,4,0x008}, {0x00C46,3,0x002}, + {0x00C4A,4,0x002}, {0x00C55,2,0x002}, + {0x00C62,2,0x002}, {0x00C82,2,0x008}, + {0x00CBC,1,0x002}, {0x00CBE,1,0x008}, + {0x00CBF,1,0x002}, {0x00CC0,2,0x008}, + {0x00CC2,1,0x002}, {0x00CC3,2,0x008}, + {0x00CC6,1,0x002}, {0x00CC7,2,0x008}, + {0x00CCA,2,0x008}, {0x00CCC,2,0x002}, + {0x00CD5,2,0x002}, {0x00CE2,2,0x002}, + {0x00D02,2,0x008}, {0x00D3E,1,0x002}, + {0x00D3F,2,0x008}, {0x00D41,4,0x002}, + {0x00D46,3,0x008}, {0x00D4A,3,0x008}, + {0x00D4D,1,0x002}, {0x00D57,1,0x002}, + {0x00D62,2,0x002}, {0x00D82,2,0x008}, + {0x00DCA,1,0x002}, {0x00DCF,1,0x002}, + {0x00DD0,2,0x008}, {0x00DD2,3,0x002}, + {0x00DD6,1,0x002}, {0x00DD8,7,0x008}, + {0x00DDF,1,0x002}, {0x00DF2,2,0x008}, + {0x00E30,11,0x002}, {0x00E40,5,0x004}, + {0x00E45,1,0x002}, {0x00E47,8,0x002}, + {0x00EB0,10,0x002}, {0x00EBB,2,0x002}, + {0x00EC0,5,0x004}, {0x00EC8,6,0x002}, + {0x00F18,2,0x002}, {0x00F35,1,0x002}, + {0x00F37,1,0x002}, {0x00F39,1,0x002}, + {0x00F3E,2,0x008}, {0x00F71,14,0x002}, + {0x00F7F,1,0x008}, {0x00F80,5,0x002}, + {0x00F86,2,0x002}, {0x00F90,8,0x002}, + {0x00F99,36,0x002}, {0x00FC6,1,0x002}, + {0x0102B,2,0x008}, {0x0102D,4,0x002}, + {0x01031,1,0x008}, {0x01032,6,0x002}, + {0x01038,1,0x008}, {0x01039,2,0x002}, + {0x0103B,2,0x008}, {0x0103D,2,0x002}, + {0x01056,2,0x008}, {0x01058,2,0x002}, + {0x0105E,3,0x002}, {0x01062,3,0x008}, + {0x01067,7,0x008}, {0x01071,4,0x002}, + {0x01082,1,0x002}, {0x01083,2,0x008}, + {0x01085,2,0x002}, {0x01087,6,0x008}, + {0x0108D,1,0x002}, {0x0108F,1,0x008}, + {0x01100,90,0x010}, {0x0115F,1,0x010}, + {0x01160,67,0x020}, {0x011A8,82,0x040}, + {0x0135F,1,0x002}, {0x01712,3,0x002}, + {0x01732,3,0x002}, {0x01752,2,0x002}, + {0x01772,2,0x002}, {0x017B4,2,0x001}, + {0x017B6,1,0x008}, {0x017B7,7,0x002}, + {0x017BE,8,0x008}, {0x017C6,1,0x002}, + {0x017C7,2,0x008}, {0x017C9,11,0x002}, + {0x017DD,1,0x002}, {0x0180B,3,0x002}, + {0x018A9,1,0x002}, {0x01920,3,0x002}, + {0x01923,4,0x008}, {0x01927,2,0x002}, + {0x01929,3,0x008}, {0x01930,2,0x008}, + {0x01932,1,0x002}, {0x01933,6,0x008}, + {0x01939,3,0x002}, {0x019B0,17,0x008}, + {0x019C8,2,0x008}, {0x01A17,2,0x002}, + {0x01A19,3,0x008}, {0x01B00,4,0x002}, + {0x01B04,1,0x008}, {0x01B34,1,0x002}, + {0x01B35,1,0x008}, {0x01B36,5,0x002}, + {0x01B3B,1,0x008}, {0x01B3C,1,0x002}, + {0x01B3D,5,0x008}, {0x01B42,1,0x002}, + {0x01B43,2,0x008}, {0x01B6B,9,0x002}, + {0x01B80,2,0x002}, {0x01B82,1,0x008}, + {0x01BA1,1,0x008}, {0x01BA2,4,0x002}, + {0x01BA6,2,0x008}, {0x01BA8,2,0x002}, + {0x01BAA,1,0x008}, {0x01C24,8,0x008}, + {0x01C2C,8,0x002}, {0x01C34,2,0x008}, + {0x01C36,2,0x002}, {0x01DC0,39,0x002}, + {0x01DFE,2,0x002}, {0x0200B,1,0x001}, + {0x0200C,2,0x002}, {0x0200E,2,0x001}, + {0x02028,7,0x001}, {0x02060,5,0x001}, + {0x0206A,6,0x001}, {0x020D0,33,0x002}, + {0x02DE0,32,0x002}, {0x0302A,6,0x002}, + {0x03099,2,0x002}, {0x0A66F,4,0x002}, + {0x0A67C,2,0x002}, {0x0A802,1,0x002}, + {0x0A806,1,0x002}, {0x0A80B,1,0x002}, + {0x0A823,2,0x008}, {0x0A825,2,0x002}, + {0x0A827,1,0x008}, {0x0A880,2,0x008}, + {0x0A8B4,16,0x008}, {0x0A8C4,1,0x002}, + {0x0A926,8,0x002}, {0x0A947,11,0x002}, + {0x0A952,2,0x008}, {0x0AA29,6,0x002}, + {0x0AA2F,2,0x008}, {0x0AA31,2,0x002}, + {0x0AA33,2,0x008}, {0x0AA35,2,0x002}, + {0x0AA43,1,0x002}, {0x0AA4C,1,0x002}, + {0x0AA4D,1,0x008}, {0x0AC00,1,0x080}, + {0x0AC01,27,0x100}, {0x0AC1C,1,0x080}, + {0x0AC1D,27,0x100}, {0x0AC38,1,0x080}, + {0x0AC39,27,0x100}, {0x0AC54,1,0x080}, + {0x0AC55,27,0x100}, {0x0AC70,1,0x080}, + {0x0AC71,27,0x100}, {0x0AC8C,1,0x080}, + {0x0AC8D,27,0x100}, {0x0ACA8,1,0x080}, + {0x0ACA9,27,0x100}, {0x0ACC4,1,0x080}, + {0x0ACC5,27,0x100}, {0x0ACE0,1,0x080}, + {0x0ACE1,27,0x100}, {0x0ACFC,1,0x080}, + {0x0ACFD,27,0x100}, {0x0AD18,1,0x080}, + {0x0AD19,27,0x100}, {0x0AD34,1,0x080}, + {0x0AD35,27,0x100}, {0x0AD50,1,0x080}, + {0x0AD51,27,0x100}, {0x0AD6C,1,0x080}, + {0x0AD6D,27,0x100}, {0x0AD88,1,0x080}, + {0x0AD89,27,0x100}, {0x0ADA4,1,0x080}, + {0x0ADA5,27,0x100}, {0x0ADC0,1,0x080}, + {0x0ADC1,27,0x100}, {0x0ADDC,1,0x080}, + {0x0ADDD,27,0x100}, {0x0ADF8,1,0x080}, + {0x0ADF9,27,0x100}, {0x0AE14,1,0x080}, + {0x0AE15,27,0x100}, {0x0AE30,1,0x080}, + {0x0AE31,27,0x100}, {0x0AE4C,1,0x080}, + {0x0AE4D,27,0x100}, {0x0AE68,1,0x080}, + {0x0AE69,27,0x100}, {0x0AE84,1,0x080}, + {0x0AE85,27,0x100}, {0x0AEA0,1,0x080}, + {0x0AEA1,27,0x100}, {0x0AEBC,1,0x080}, + {0x0AEBD,27,0x100}, {0x0AED8,1,0x080}, + {0x0AED9,27,0x100}, {0x0AEF4,1,0x080}, + {0x0AEF5,27,0x100}, {0x0AF10,1,0x080}, + {0x0AF11,27,0x100}, {0x0AF2C,1,0x080}, + {0x0AF2D,27,0x100}, {0x0AF48,1,0x080}, + {0x0AF49,27,0x100}, {0x0AF64,1,0x080}, + {0x0AF65,27,0x100}, {0x0AF80,1,0x080}, + {0x0AF81,27,0x100}, {0x0AF9C,1,0x080}, + {0x0AF9D,27,0x100}, {0x0AFB8,1,0x080}, + {0x0AFB9,27,0x100}, {0x0AFD4,1,0x080}, + {0x0AFD5,27,0x100}, {0x0AFF0,1,0x080}, + {0x0AFF1,27,0x100}, {0x0B00C,1,0x080}, + {0x0B00D,27,0x100}, {0x0B028,1,0x080}, + {0x0B029,27,0x100}, {0x0B044,1,0x080}, + {0x0B045,27,0x100}, {0x0B060,1,0x080}, + {0x0B061,27,0x100}, {0x0B07C,1,0x080}, + {0x0B07D,27,0x100}, {0x0B098,1,0x080}, + {0x0B099,27,0x100}, {0x0B0B4,1,0x080}, + {0x0B0B5,27,0x100}, {0x0B0D0,1,0x080}, + {0x0B0D1,27,0x100}, {0x0B0EC,1,0x080}, + {0x0B0ED,27,0x100}, {0x0B108,1,0x080}, + {0x0B109,27,0x100}, {0x0B124,1,0x080}, + {0x0B125,27,0x100}, {0x0B140,1,0x080}, + {0x0B141,27,0x100}, {0x0B15C,1,0x080}, + {0x0B15D,27,0x100}, {0x0B178,1,0x080}, + {0x0B179,27,0x100}, {0x0B194,1,0x080}, + {0x0B195,27,0x100}, {0x0B1B0,1,0x080}, + {0x0B1B1,27,0x100}, {0x0B1CC,1,0x080}, + {0x0B1CD,27,0x100}, {0x0B1E8,1,0x080}, + {0x0B1E9,27,0x100}, {0x0B204,1,0x080}, + {0x0B205,27,0x100}, {0x0B220,1,0x080}, + {0x0B221,27,0x100}, {0x0B23C,1,0x080}, + {0x0B23D,27,0x100}, {0x0B258,1,0x080}, + {0x0B259,27,0x100}, {0x0B274,1,0x080}, + {0x0B275,27,0x100}, {0x0B290,1,0x080}, + {0x0B291,27,0x100}, {0x0B2AC,1,0x080}, + {0x0B2AD,27,0x100}, {0x0B2C8,1,0x080}, + {0x0B2C9,27,0x100}, {0x0B2E4,1,0x080}, + {0x0B2E5,27,0x100}, {0x0B300,1,0x080}, + {0x0B301,27,0x100}, {0x0B31C,1,0x080}, + {0x0B31D,27,0x100}, {0x0B338,1,0x080}, + {0x0B339,27,0x100}, {0x0B354,1,0x080}, + {0x0B355,27,0x100}, {0x0B370,1,0x080}, + {0x0B371,27,0x100}, {0x0B38C,1,0x080}, + {0x0B38D,27,0x100}, {0x0B3A8,1,0x080}, + {0x0B3A9,27,0x100}, {0x0B3C4,1,0x080}, + {0x0B3C5,27,0x100}, {0x0B3E0,1,0x080}, + {0x0B3E1,27,0x100}, {0x0B3FC,1,0x080}, + {0x0B3FD,27,0x100}, {0x0B418,1,0x080}, + {0x0B419,27,0x100}, {0x0B434,1,0x080}, + {0x0B435,27,0x100}, {0x0B450,1,0x080}, + {0x0B451,27,0x100}, {0x0B46C,1,0x080}, + {0x0B46D,27,0x100}, {0x0B488,1,0x080}, + {0x0B489,27,0x100}, {0x0B4A4,1,0x080}, + {0x0B4A5,27,0x100}, {0x0B4C0,1,0x080}, + {0x0B4C1,27,0x100}, {0x0B4DC,1,0x080}, + {0x0B4DD,27,0x100}, {0x0B4F8,1,0x080}, + {0x0B4F9,27,0x100}, {0x0B514,1,0x080}, + {0x0B515,27,0x100}, {0x0B530,1,0x080}, + {0x0B531,27,0x100}, {0x0B54C,1,0x080}, + {0x0B54D,27,0x100}, {0x0B568,1,0x080}, + {0x0B569,27,0x100}, {0x0B584,1,0x080}, + {0x0B585,27,0x100}, {0x0B5A0,1,0x080}, + {0x0B5A1,27,0x100}, {0x0B5BC,1,0x080}, + {0x0B5BD,27,0x100}, {0x0B5D8,1,0x080}, + {0x0B5D9,27,0x100}, {0x0B5F4,1,0x080}, + {0x0B5F5,27,0x100}, {0x0B610,1,0x080}, + {0x0B611,27,0x100}, {0x0B62C,1,0x080}, + {0x0B62D,27,0x100}, {0x0B648,1,0x080}, + 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{0x0D329,27,0x100}, {0x0D344,1,0x080}, + {0x0D345,27,0x100}, {0x0D360,1,0x080}, + {0x0D361,27,0x100}, {0x0D37C,1,0x080}, + {0x0D37D,27,0x100}, {0x0D398,1,0x080}, + {0x0D399,27,0x100}, {0x0D3B4,1,0x080}, + {0x0D3B5,27,0x100}, {0x0D3D0,1,0x080}, + {0x0D3D1,27,0x100}, {0x0D3EC,1,0x080}, + {0x0D3ED,27,0x100}, {0x0D408,1,0x080}, + {0x0D409,27,0x100}, {0x0D424,1,0x080}, + {0x0D425,27,0x100}, {0x0D440,1,0x080}, + {0x0D441,27,0x100}, {0x0D45C,1,0x080}, + {0x0D45D,27,0x100}, {0x0D478,1,0x080}, + {0x0D479,27,0x100}, {0x0D494,1,0x080}, + {0x0D495,27,0x100}, {0x0D4B0,1,0x080}, + {0x0D4B1,27,0x100}, {0x0D4CC,1,0x080}, + {0x0D4CD,27,0x100}, {0x0D4E8,1,0x080}, + {0x0D4E9,27,0x100}, {0x0D504,1,0x080}, + {0x0D505,27,0x100}, {0x0D520,1,0x080}, + {0x0D521,27,0x100}, {0x0D53C,1,0x080}, + {0x0D53D,27,0x100}, {0x0D558,1,0x080}, + {0x0D559,27,0x100}, {0x0D574,1,0x080}, + {0x0D575,27,0x100}, {0x0D590,1,0x080}, + {0x0D591,27,0x100}, {0x0D5AC,1,0x080}, + {0x0D5AD,27,0x100}, {0x0D5C8,1,0x080}, + {0x0D5C9,27,0x100}, {0x0D5E4,1,0x080}, + {0x0D5E5,27,0x100}, {0x0D600,1,0x080}, + {0x0D601,27,0x100}, {0x0D61C,1,0x080}, + {0x0D61D,27,0x100}, {0x0D638,1,0x080}, + {0x0D639,27,0x100}, {0x0D654,1,0x080}, + {0x0D655,27,0x100}, {0x0D670,1,0x080}, + {0x0D671,27,0x100}, {0x0D68C,1,0x080}, + {0x0D68D,27,0x100}, {0x0D6A8,1,0x080}, + {0x0D6A9,27,0x100}, {0x0D6C4,1,0x080}, + {0x0D6C5,27,0x100}, {0x0D6E0,1,0x080}, + {0x0D6E1,27,0x100}, {0x0D6FC,1,0x080}, + {0x0D6FD,27,0x100}, {0x0D718,1,0x080}, + {0x0D719,27,0x100}, {0x0D734,1,0x080}, + {0x0D735,27,0x100}, {0x0D750,1,0x080}, + {0x0D751,27,0x100}, {0x0D76C,1,0x080}, + {0x0D76D,27,0x100}, {0x0D788,1,0x080}, + {0x0D789,27,0x100}, {0x0FB1E,1,0x002}, + {0x0FE00,16,0x002}, {0x0FE20,7,0x002}, + {0x0FEFF,1,0x001}, {0x0FF9E,2,0x002}, + {0x0FFF9,3,0x001}, {0x101FD,1,0x002}, + {0x10A01,3,0x002}, {0x10A05,2,0x002}, + {0x10A0C,4,0x002}, {0x10A38,3,0x002}, + {0x10A3F,1,0x002}, {0x1D165,1,0x002}, + {0x1D166,1,0x008}, {0x1D167,3,0x002}, + {0x1D16D,1,0x008}, {0x1D16E,5,0x002}, + {0x1D173,8,0x001}, {0x1D17B,8,0x002}, + {0x1D185,7,0x002}, {0x1D1AA,4,0x002}, + {0x1D242,3,0x002}, {0xE0001,1,0x001}, + {0xE0020,96,0x001}, {0xE0100,240,0x002}, +}; + +static int +grapheme_cmp(const void *p1, const void *p2) +{ + const struct graphme_table_t *k = p1; + const struct graphme_table_t *v = p2; + OnigCodePoint c = k->codepoint_min; + if (c < v->codepoint_min) + return -1; + if (v->codepoint_min + v->num_codepoints <= c) + return 1; + return 0; +} + +static unsigned int +get_grapheme_properties(OnigCodePoint c) +{ + struct graphme_table_t key, *found; + key.codepoint_min = c; + found = bsearch(&key, graphme_table, sizeof(graphme_table)/sizeof(*graphme_table), + sizeof(*graphme_table), grapheme_cmp); + if (found) + return found->properties; + return 0; +} + +/* Stream-Safe Text Format assumed + * http://unicode.org/reports/tr15/ */ +#define MAX_BYTES_LENGTH 128 + +static OnigCodePoint mbc_to_code0(const UChar* p, const UChar* end, int len); + +static int +grapheme_boundary_p(int props1, int props2) +{ + if (props2 & GRAPHEME_BIT_CONTROL) + return 1; + if (((props1 & GRAPHEME_BIT_L) && (props2 & (GRAPHEME_BIT_L| + GRAPHEME_BIT_V| + GRAPHEME_BIT_LV| + GRAPHEME_BIT_LVT))) || + ((props1 & (GRAPHEME_BIT_LV| + GRAPHEME_BIT_V)) && (props2 & (GRAPHEME_BIT_V| + GRAPHEME_BIT_T))) || + ((props1 & (GRAPHEME_BIT_LVT| + GRAPHEME_BIT_T)) && (props2 & GRAPHEME_BIT_T))) + return 0; + if (props2 & (GRAPHEME_BIT_EXTEND| + GRAPHEME_BIT_SPACINGMARK)) + return 0; + if (props1 & GRAPHEME_BIT_PREPEND) + return 0; + return 1; +} + +static int +comb_char_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED) +{ + /* + * this implements extended grapheme clusters ("user-perceived characters") + * http://www.unicode.org/reports/tr29/ + */ + int r1, l1, r2, l2; + OnigCodePoint c1, c2; + unsigned int p1, p2; + r1 = mbc_enc_len(p, e, enc); + if (!ONIGENC_MBCLEN_CHARFOUND_P(r1)) + return r1; + l1 = ONIGENC_MBCLEN_CHARFOUND_LEN(r1); + c1 = mbc_to_code0(p, e, l1); + p1 = get_grapheme_properties(c1); + + if (p + l1 == e) + return r1; + + while (p + l1 < e && l1 < MAX_BYTES_LENGTH-4) { + if (p1 & GRAPHEME_BIT_CONTROL) + return ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(l1); + r2 = mbc_enc_len(p+l1, e, enc); + if (ONIGENC_MBCLEN_INVALID_P(r2)) + return ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(l1); + if (ONIGENC_MBCLEN_NEEDMORE_P(r2)) + return r2; + l2 = ONIGENC_MBCLEN_CHARFOUND_LEN(r2); + c2 = mbc_to_code0(p+l1, e, l2); + p2 = get_grapheme_properties(c2); + if (grapheme_boundary_p(p1, p2)) + return ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(l1); + l1 += l2; + p1 = p2; + } + /* if p+l1==e, charfound AND needmore */ + return ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(l1); +} + static int is_mbc_newline(const UChar* p, const UChar* end, OnigEncoding enc) { @@ -267,12 +918,11 @@ is_mbc_newline(const UChar* p, const UChar* end, OnigEncoding enc) } static OnigCodePoint -mbc_to_code(const UChar* p, const UChar* end, OnigEncoding enc) +mbc_to_code0(const UChar* p, const UChar* end, int len) { - int c, len; + int c; OnigCodePoint n; - len = enclen(enc, p, end); c = *p++; if (len > 1) { len--; @@ -293,6 +943,24 @@ mbc_to_code(const UChar* p, const UChar* end, OnigEncoding enc) } } +static OnigCodePoint +mbc_to_code(const UChar* p, const UChar* end, int *precise_ret, OnigEncoding enc) +{ + int len; + int ret; + + ret = mbc_enc_len(p, end, enc); + if (precise_ret) + *precise_ret = ret; + if (ONIGENC_MBCLEN_CHARFOUND_P(ret)) + len = ONIGENC_MBCLEN_CHARFOUND_LEN(ret); + else if (ONIGENC_MBCLEN_NEEDMORE_P(ret)) + len = end-p+ONIGENC_MBCLEN_NEEDMORE_LEN(ret); + else + len = 1; + return mbc_to_code0(p, end, len); +} + static int code_to_mbclen(OnigCodePoint code, OnigEncoding enc ARG_UNUSED) { @@ -416,6 +1084,30 @@ left_adjust_char_head(const UChar* start, const UChar* s, const UChar* end, Onig return (UChar* )p; } +static UChar* +left_adjust_combchar_head(const UChar* start, const UChar* s, const UChar* end, OnigEncoding enc ARG_UNUSED) +{ + const UChar *p = left_adjust_char_head(start, s, end, enc); + const UChar *q; + OnigCodePoint c1, c2; + unsigned int p1, p2; + + c2 = mbc_to_code(p, end, NULL, enc); + p2 = get_grapheme_properties(c2); + + while (start < p) { + q = left_adjust_char_head(start, p-1, end, enc); + c1 = mbc_to_code(q, end, NULL, enc); + p1 = get_grapheme_properties(c1); + if (grapheme_boundary_p(p1, p2)) + break; + c2 = c1; + p2 = p1; + p = q; + } + return (UChar *)p; +} + static int get_case_fold_codes_by_str(OnigCaseFoldType flag, const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[], @@ -425,9 +1117,9 @@ get_case_fold_codes_by_str(OnigCaseFoldType flag, } OnigEncodingDefine(utf_8, UTF_8) = { - mbc_enc_len, + comb_char_enc_len, "UTF-8", /* name */ - 6, /* max byte length */ + MAX_BYTES_LENGTH, /* max byte length */ 1, /* min byte length */ is_mbc_newline, mbc_to_code, @@ -439,8 +1131,8 @@ OnigEncodingDefine(utf_8, UTF_8) = { onigenc_unicode_property_name_to_ctype, onigenc_unicode_is_code_ctype, get_ctype_code_range, - left_adjust_char_head, - onigenc_always_true_is_allowed_reverse_match + left_adjust_combchar_head, + onigenc_always_false_is_allowed_reverse_match }; ENC_ALIAS("CP65001", "UTF-8") |