diff options
Diffstat (limited to 'enc/shift_jis.c')
| -rw-r--r-- | enc/shift_jis.c | 525 |
1 files changed, 4 insertions, 521 deletions
diff --git a/enc/shift_jis.c b/enc/shift_jis.c index eacca9a5db..65fd5102de 100644 --- a/enc/shift_jis.c +++ b/enc/shift_jis.c @@ -1,9 +1,9 @@ /********************************************************************** - sjis.c - Onigmo (Oniguruma-mod) (regular expression library) + shift_jis.c - Onigmo (Oniguruma-mod) (regular expression library) **********************************************************************/ /*- - * Copyright (c) 2002-2008 K.Kosako <sndgk393 AT ybb DOT ne DOT jp> - * Copyright (c) 2011 K.Takata <kentkt AT csc DOT jp> + * Copyright (c) 2002-2009 K.Kosako <sndgk393 AT ybb DOT ne DOT jp> + * Copyright (c) 2011-2017 K.Takata <kentkt AT csc DOT jp> * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -28,524 +28,8 @@ * SUCH DAMAGE. */ -#include "regenc.h" +#include "shift_jis.h" -static const int EncLen_SJIS[] = { - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1 -}; - -static const char SJIS_CAN_BE_TRAIL_TABLE[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0 -}; - -static const OnigPairCaseFoldCodes CaseFoldMap[] = { - /* Fullwidth Alphabet */ - { 0x8260, 0x8281 }, - { 0x8261, 0x8282 }, - { 0x8262, 0x8283 }, - { 0x8263, 0x8284 }, - { 0x8264, 0x8285 }, - { 0x8265, 0x8286 }, - { 0x8266, 0x8287 }, - { 0x8267, 0x8288 }, - { 0x8268, 0x8289 }, - { 0x8269, 0x828a }, - { 0x826a, 0x828b }, - { 0x826b, 0x828c }, - { 0x826c, 0x828d }, - { 0x826d, 0x828e }, - { 0x826e, 0x828f }, - { 0x826f, 0x8290 }, - { 0x8270, 0x8291 }, - { 0x8271, 0x8292 }, - { 0x8272, 0x8293 }, - { 0x8273, 0x8294 }, - { 0x8274, 0x8295 }, - { 0x8275, 0x8296 }, - { 0x8276, 0x8297 }, - { 0x8277, 0x8298 }, - { 0x8278, 0x8299 }, - { 0x8279, 0x829a }, - - /* Greek */ - { 0x839f, 0x83bf }, - { 0x83a0, 0x83c0 }, - { 0x83a1, 0x83c1 }, - { 0x83a2, 0x83c2 }, - { 0x83a3, 0x83c3 }, - { 0x83a4, 0x83c4 }, - { 0x83a5, 0x83c5 }, - { 0x83a6, 0x83c6 }, - { 0x83a7, 0x83c7 }, - { 0x83a8, 0x83c8 }, - { 0x83a9, 0x83c9 }, - { 0x83aa, 0x83ca }, - { 0x83ab, 0x83cb }, - { 0x83ac, 0x83cc }, - { 0x83ad, 0x83cd }, - { 0x83ae, 0x83ce }, - { 0x83af, 0x83cf }, - { 0x83b0, 0x83d0 }, - { 0x83b1, 0x83d1 }, - { 0x83b2, 0x83d2 }, - { 0x83b3, 0x83d3 }, - { 0x83b4, 0x83d4 }, - { 0x83b5, 0x83d5 }, - { 0x83b6, 0x83d6 }, - - /* Cyrillic */ - { 0x8440, 0x8470 }, - { 0x8441, 0x8471 }, - { 0x8442, 0x8472 }, - { 0x8443, 0x8473 }, - { 0x8444, 0x8474 }, - { 0x8445, 0x8475 }, - { 0x8446, 0x8476 }, - { 0x8447, 0x8477 }, - { 0x8448, 0x8478 }, - { 0x8449, 0x8479 }, - { 0x844a, 0x847a }, - { 0x844b, 0x847b }, - { 0x844c, 0x847c }, - { 0x844d, 0x847d }, - { 0x844e, 0x847e }, - { 0x844f, 0x8480 }, - { 0x8450, 0x8481 }, - { 0x8451, 0x8482 }, - { 0x8452, 0x8483 }, - { 0x8453, 0x8484 }, - { 0x8454, 0x8485 }, - { 0x8455, 0x8486 }, - { 0x8456, 0x8487 }, - { 0x8457, 0x8488 }, - { 0x8458, 0x8489 }, - { 0x8459, 0x848a }, - { 0x845a, 0x848b }, - { 0x845b, 0x848c }, - { 0x845c, 0x848d }, - { 0x845d, 0x848e }, - { 0x845e, 0x848f }, - { 0x845f, 0x8490 }, - { 0x8460, 0x8491 }, -}; - -#define SJIS_ISMB_FIRST(byte) (EncLen_SJIS[byte] > 1) -#define SJIS_ISMB_TRAIL(byte) SJIS_CAN_BE_TRAIL_TABLE[(byte)] - -typedef enum { FAILURE = -2, ACCEPT = -1, S0 = 0, S1 } state_t; -#define A ACCEPT -#define F FAILURE -static const signed char trans[][0x100] = { - { /* S0 0 1 2 3 4 5 6 7 8 9 a b c d e f */ - /* 0 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 1 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 2 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 3 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 4 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 5 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 6 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 7 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 8 */ F, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - /* 9 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - /* a */ F, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* b */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* c */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* d */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* e */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - /* f */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, F, F, F - }, - { /* S1 0 1 2 3 4 5 6 7 8 9 a b c d e f */ - /* 0 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, - /* 1 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, - /* 2 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, - /* 3 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, - /* 4 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 5 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 6 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 7 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, F, - /* 8 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* 9 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* a */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* b */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* c */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* d */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* e */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, - /* f */ A, A, A, A, A, A, A, A, A, A, A, A, A, F, F, F - } -}; -#undef A -#undef F - -static int -mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED) -{ - int firstbyte = *p++; - state_t s; - s = trans[0][firstbyte]; - if (s < 0) return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(1) : - ONIGENC_CONSTRUCT_MBCLEN_INVALID(); - if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(EncLen_SJIS[firstbyte]-1); - s = trans[s][*p++]; - return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(2) : - ONIGENC_CONSTRUCT_MBCLEN_INVALID(); -} - -static int -code_to_mbclen(OnigCodePoint code, OnigEncoding enc ARG_UNUSED) -{ - if (code < 256) { - if (EncLen_SJIS[(int )code] == 1) - return 1; - else - return ONIGERR_INVALID_CODE_POINT_VALUE; - } - else if (code <= 0xffff) { - int low = code & 0xff; - if (! SJIS_ISMB_TRAIL(low)) - return ONIGERR_INVALID_CODE_POINT_VALUE; - return 2; - } - else - return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE; -} - -static OnigCodePoint -mbc_to_code(const UChar* p, const UChar* end, OnigEncoding enc) -{ - int c, i, len; - OnigCodePoint n; - - len = mbc_enc_len(p, end, enc); - c = *p++; - n = c; - if (len == 1) return n; - - for (i = 1; i < len; i++) { - if (p >= end) break; - c = *p++; - n <<= 8; n += c; - } - return n; -} - -static int -code_to_mbc(OnigCodePoint code, UChar *buf, OnigEncoding enc) -{ - UChar *p = buf; - - if ((code & 0xff00) != 0) *p++ = (UChar )(((code >> 8) & 0xff)); - *p++ = (UChar )(code & 0xff); - -#if 0 - if (mbc_enc_len(buf, p, enc) != (p - buf)) - return REGERR_INVALID_CODE_POINT_VALUE; -#endif - return (int )(p - buf); -} - -static int -apply_all_case_fold(OnigCaseFoldType flag, - OnigApplyAllCaseFoldFunc f, void* arg, OnigEncoding enc) -{ - return onigenc_apply_all_case_fold_with_map( - numberof(CaseFoldMap), CaseFoldMap, 0, - flag, f, arg); -} - -static OnigCodePoint -get_lower_case(OnigCodePoint code) -{ - if (ONIGENC_IS_IN_RANGE(code, 0x8260, 0x8279)) { - /* Fullwidth Alphabet */ - return (OnigCodePoint )(code + 0x0021); - } - else if (ONIGENC_IS_IN_RANGE(code, 0x839f, 0x83b6)) { - /* Greek */ - return (OnigCodePoint )(code + 0x0020); - } - else if (ONIGENC_IS_IN_RANGE(code, 0x8440, 0x8460)) { - /* Cyrillic */ - int d = (code >= 0x844f) ? 1 : 0; - return (OnigCodePoint )(code + (0x0030 + d)); - } - return code; -} - -static OnigCodePoint -get_upper_case(OnigCodePoint code) -{ - if (ONIGENC_IS_IN_RANGE(code, 0x8281, 0x829a)) { - /* Fullwidth Alphabet */ - return (OnigCodePoint )(code - 0x0021); - } - else if (ONIGENC_IS_IN_RANGE(code, 0x83bf, 0x83d6)) { - /* Greek */ - return (OnigCodePoint )(code - 0x0020); - } - else if (ONIGENC_IS_IN_RANGE(code, 0x8470, 0x847e) || - ONIGENC_IS_IN_RANGE(code, 0x8480, 0x8491)) { - /* Cyrillic */ - int d = (code >= 0x8480) ? 1 : 0; - return (OnigCodePoint )(code - (0x0030 - d)); - } - return code; -} - -static int -get_case_fold_codes_by_str(OnigCaseFoldType flag, - const OnigUChar* p, const OnigUChar* end, - OnigCaseFoldCodeItem items[], OnigEncoding enc) -{ - int len; - OnigCodePoint code, code_lo, code_up; - - code = mbc_to_code(p, end, enc); - if (ONIGENC_IS_ASCII_CODE(code)) - return onigenc_ascii_get_case_fold_codes_by_str(flag, p, end, items, enc); - - len = mbc_enc_len(p, end, enc); - code_lo = get_lower_case(code); - code_up = get_upper_case(code); - - if (code != code_lo) { - items[0].byte_len = len; - items[0].code_len = 1; - items[0].code[0] = code_lo; - return 1; - } - else if (code != code_up) { - items[0].byte_len = len; - items[0].code_len = 1; - items[0].code[0] = code_up; - return 1; - } - - return 0; -} - -static int -mbc_case_fold(OnigCaseFoldType flag, - const UChar** pp, const UChar* end, UChar* lower, - OnigEncoding enc) -{ - const UChar* p = *pp; - - if (ONIGENC_IS_MBC_ASCII(p)) { - *lower = ONIGENC_ASCII_CODE_TO_LOWER_CASE(*p); - (*pp)++; - return 1; - } - else { - OnigCodePoint code; - int len; - - code = get_lower_case(mbc_to_code(p, end, enc)); - len = code_to_mbc(code, lower, enc); - (*pp) += len; - return len; /* return byte length of converted char to lower */ - } -} - -#if 0 -static int -is_mbc_ambiguous(OnigCaseFoldType flag, - const UChar** pp, const UChar* end) -{ - return onigenc_mbn_is_mbc_ambiguous(enc, flag, pp, end); - -} -#endif - -#if 0 -static int -is_code_ctype(OnigCodePoint code, unsigned int ctype) -{ - if (code < 128) - return ONIGENC_IS_ASCII_CODE_CTYPE(code, ctype); - else { - if (CTYPE_IS_WORD_GRAPH_PRINT(ctype)) { - return (code_to_mbclen(code) > 1 ? TRUE : FALSE); - } - } - - return FALSE; -} -#endif - -static UChar* -left_adjust_char_head(const UChar* start, const UChar* s, const UChar* end, OnigEncoding enc) -{ - const UChar *p; - int len; - - if (s <= start) return (UChar* )s; - p = s; - - if (SJIS_ISMB_TRAIL(*p)) { - while (p > start) { - if (! SJIS_ISMB_FIRST(*--p)) { - p++; - break; - } - } - } - len = mbc_enc_len(p, end, enc); - if (p + len > s) return (UChar* )p; - p += len; - return (UChar* )(p + ((s - p) & ~1)); -} - -static int -is_allowed_reverse_match(const UChar* s, const UChar* end, OnigEncoding enc ARG_UNUSED) -{ - const UChar c = *s; - return (SJIS_ISMB_TRAIL(c) ? FALSE : TRUE); -} - - -static const OnigCodePoint CR_Hiragana[] = { - 1, - 0x829f, 0x82f1 -}; /* CR_Hiragana */ - -static const OnigCodePoint CR_Katakana[] = { - 4, - 0x00a6, 0x00af, - 0x00b1, 0x00dd, - 0x8340, 0x837e, - 0x8380, 0x8396, -}; /* CR_Katakana */ - -#ifdef ENC_CP932 -static const OnigCodePoint CR_Han[] = { - 6, - 0x8157, 0x8157, - 0x889f, 0x9872, /* Kanji level 1 */ - 0x989f, 0x9ffc, /* Kanji level 2 */ - 0xe040, 0xeaa4, /* Kanji level 2 */ - 0xed40, 0xeeec, /* NEC-selected IBM extended characters (without symbols) */ - 0xfa5c, 0xfc4b, /* IBM extended characters (without symbols) */ -}; /* CR_Han */ -#else -static const OnigCodePoint CR_Han[] = { - 4, - 0x8157, 0x8157, - 0x889f, 0x9872, /* Kanji level 1 */ - 0x989f, 0x9ffc, /* Kanji level 2 */ - 0xe040, 0xeaa4, /* Kanji level 2 */ -}; /* CR_Han */ -#endif - -static const OnigCodePoint CR_Latin[] = { - 4, - 0x0041, 0x005a, - 0x0061, 0x007a, - 0x8260, 0x8279, - 0x8281, 0x829a, -}; /* CR_Latin */ - -static const OnigCodePoint CR_Greek[] = { - 2, - 0x839f, 0x83b6, - 0x83bf, 0x83d6, -}; /* CR_Greek */ - -static const OnigCodePoint CR_Cyrillic[] = { - 3, - 0x8440, 0x8460, - 0x8470, 0x847f, - 0x8480, 0x8491, -}; /* CR_Cyrillic */ - -#include "enc/jis/props.h" - -static int -property_name_to_ctype(OnigEncoding enc, const UChar* p, const UChar* end) -{ - const UChar *s = p, *e = end; - const struct enc_property *prop = - onig_jis_property((const char* )s, (unsigned int )(e - s)); - - if (!prop) { - return onigenc_minimum_property_name_to_ctype(enc, s, e); - } - - return (int )prop->ctype; -} - -static int -is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc) -{ - if (ctype <= ONIGENC_MAX_STD_CTYPE) { - if (code < 128) - return ONIGENC_IS_ASCII_CODE_CTYPE(code, ctype); - else { - if (CTYPE_IS_WORD_GRAPH_PRINT(ctype)) { - return TRUE; - } - } - } - else { - ctype -= (ONIGENC_MAX_STD_CTYPE + 1); - if (ctype >= (unsigned int )PropertyListNum) - return ONIGERR_TYPE_BUG; - - return onig_is_in_code_range((UChar* )PropertyList[ctype], code); - } - - return FALSE; -} - -static int -get_ctype_code_range(OnigCtype ctype, OnigCodePoint* sb_out, - const OnigCodePoint* ranges[], OnigEncoding enc ARG_UNUSED) -{ - if (ctype <= ONIGENC_MAX_STD_CTYPE) { - return ONIG_NO_SUPPORT_CONFIG; - } - else { - *sb_out = 0x80; - - ctype -= (ONIGENC_MAX_STD_CTYPE + 1); - if (ctype >= (OnigCtype )PropertyListNum) - return ONIGERR_TYPE_BUG; - - *ranges = PropertyList[ctype]; - return 0; - } -} - -#ifndef ENC_CP932 OnigEncodingDefine(shift_jis, Shift_JIS) = { mbc_enc_len, "Shift_JIS", /* name */ @@ -581,4 +65,3 @@ OnigEncodingDefine(shift_jis, Shift_JIS) = { */ ENC_REPLICATE("MacJapanese", "Shift_JIS") ENC_ALIAS("MacJapan", "MacJapanese") -#endif |