| /* |
| * _codecs_kr.c: Codecs collection for Korean encodings |
| * |
| * Written by Hye-Shik Chang <perky@FreeBSD.org> |
| */ |
| |
| #include "cjkcodecs.h" |
| #include "mappings_kr.h" |
| |
| /* |
| * EUC-KR codec |
| */ |
| |
| #define EUCKR_JAMO_FIRSTBYTE 0xA4 |
| #define EUCKR_JAMO_FILLER 0xD4 |
| |
| static const unsigned char u2cgk_choseong[19] = { |
| 0xa1, 0xa2, 0xa4, 0xa7, 0xa8, 0xa9, 0xb1, 0xb2, |
| 0xb3, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, |
| 0xbc, 0xbd, 0xbe |
| }; |
| static const unsigned char u2cgk_jungseong[21] = { |
| 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, |
| 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, |
| 0xcf, 0xd0, 0xd1, 0xd2, 0xd3 |
| }; |
| static const unsigned char u2cgk_jongseong[28] = { |
| 0xd4, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, |
| 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, |
| 0xb1, 0xb2, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xba, |
| 0xbb, 0xbc, 0xbd, 0xbe |
| }; |
| |
| ENCODER(euc_kr) |
| { |
| while (inleft > 0) { |
| Py_UNICODE c = IN1; |
| DBCHAR code; |
| |
| if (c < 0x80) { |
| WRITE1((unsigned char)c) |
| NEXT(1, 1) |
| continue; |
| } |
| UCS4INVALID(c) |
| |
| REQUIRE_OUTBUF(2) |
| TRYMAP_ENC(cp949, code, c); |
| else return 1; |
| |
| if ((code & 0x8000) == 0) { |
| /* KS X 1001 coded character */ |
| OUT1((code >> 8) | 0x80) |
| OUT2((code & 0xFF) | 0x80) |
| NEXT(1, 2) |
| } |
| else { /* Mapping is found in CP949 extension, |
| * but we encode it in KS X 1001:1998 Annex 3, |
| * make-up sequence for EUC-KR. */ |
| |
| REQUIRE_OUTBUF(8) |
| |
| /* syllable composition precedence */ |
| OUT1(EUCKR_JAMO_FIRSTBYTE) |
| OUT2(EUCKR_JAMO_FILLER) |
| |
| /* All codepoints in CP949 extension are in unicode |
| * Hangul Syllable area. */ |
| assert(0xac00 <= c && c <= 0xd7a3); |
| c -= 0xac00; |
| |
| OUT3(EUCKR_JAMO_FIRSTBYTE) |
| OUT4(u2cgk_choseong[c / 588]) |
| NEXT_OUT(4) |
| |
| OUT1(EUCKR_JAMO_FIRSTBYTE) |
| OUT2(u2cgk_jungseong[(c / 28) % 21]) |
| OUT3(EUCKR_JAMO_FIRSTBYTE) |
| OUT4(u2cgk_jongseong[c % 28]) |
| NEXT(1, 4) |
| } |
| } |
| |
| return 0; |
| } |
| |
| #define NONE 127 |
| |
| static const unsigned char cgk2u_choseong[] = { /* [A1, BE] */ |
| 0, 1, NONE, 2, NONE, NONE, 3, 4, |
| 5, NONE, NONE, NONE, NONE, NONE, NONE, NONE, |
| 6, 7, 8, NONE, 9, 10, 11, 12, |
| 13, 14, 15, 16, 17, 18 |
| }; |
| static const unsigned char cgk2u_jongseong[] = { /* [A1, BE] */ |
| 1, 2, 3, 4, 5, 6, 7, NONE, |
| 8, 9, 10, 11, 12, 13, 14, 15, |
| 16, 17, NONE, 18, 19, 20, 21, 22, |
| NONE, 23, 24, 25, 26, 27 |
| }; |
| |
| DECODER(euc_kr) |
| { |
| while (inleft > 0) { |
| unsigned char c = IN1; |
| |
| REQUIRE_OUTBUF(1) |
| |
| if (c < 0x80) { |
| OUT1(c) |
| NEXT(1, 1) |
| continue; |
| } |
| |
| REQUIRE_INBUF(2) |
| |
| if (c == EUCKR_JAMO_FIRSTBYTE && |
| IN2 == EUCKR_JAMO_FILLER) { |
| /* KS X 1001:1998 Annex 3 make-up sequence */ |
| DBCHAR cho, jung, jong; |
| |
| REQUIRE_INBUF(8) |
| if ((*inbuf)[2] != EUCKR_JAMO_FIRSTBYTE || |
| (*inbuf)[4] != EUCKR_JAMO_FIRSTBYTE || |
| (*inbuf)[6] != EUCKR_JAMO_FIRSTBYTE) |
| return 8; |
| |
| c = (*inbuf)[3]; |
| if (0xa1 <= c && c <= 0xbe) |
| cho = cgk2u_choseong[c - 0xa1]; |
| else |
| cho = NONE; |
| |
| c = (*inbuf)[5]; |
| jung = (0xbf <= c && c <= 0xd3) ? c - 0xbf : NONE; |
| |
| c = (*inbuf)[7]; |
| if (c == EUCKR_JAMO_FILLER) |
| jong = 0; |
| else if (0xa1 <= c && c <= 0xbe) |
| jong = cgk2u_jongseong[c - 0xa1]; |
| else |
| jong = NONE; |
| |
| if (cho == NONE || jung == NONE || jong == NONE) |
| return 8; |
| |
| OUT1(0xac00 + cho*588 + jung*28 + jong); |
| NEXT(8, 1) |
| } |
| else TRYMAP_DEC(ksx1001, **outbuf, c ^ 0x80, IN2 ^ 0x80) { |
| NEXT(2, 1) |
| } |
| else |
| return 2; |
| } |
| |
| return 0; |
| } |
| #undef NONE |
| |
| |
| /* |
| * CP949 codec |
| */ |
| |
| ENCODER(cp949) |
| { |
| while (inleft > 0) { |
| Py_UNICODE c = IN1; |
| DBCHAR code; |
| |
| if (c < 0x80) { |
| WRITE1((unsigned char)c) |
| NEXT(1, 1) |
| continue; |
| } |
| UCS4INVALID(c) |
| |
| REQUIRE_OUTBUF(2) |
| TRYMAP_ENC(cp949, code, c); |
| else return 1; |
| |
| OUT1((code >> 8) | 0x80) |
| if (code & 0x8000) |
| OUT2(code & 0xFF) /* MSB set: CP949 */ |
| else |
| OUT2((code & 0xFF) | 0x80) /* MSB unset: ks x 1001 */ |
| NEXT(1, 2) |
| } |
| |
| return 0; |
| } |
| |
| DECODER(cp949) |
| { |
| while (inleft > 0) { |
| unsigned char c = IN1; |
| |
| REQUIRE_OUTBUF(1) |
| |
| if (c < 0x80) { |
| OUT1(c) |
| NEXT(1, 1) |
| continue; |
| } |
| |
| REQUIRE_INBUF(2) |
| TRYMAP_DEC(ksx1001, **outbuf, c ^ 0x80, IN2 ^ 0x80); |
| else TRYMAP_DEC(cp949ext, **outbuf, c, IN2); |
| else return 2; |
| |
| NEXT(2, 1) |
| } |
| |
| return 0; |
| } |
| |
| |
| /* |
| * JOHAB codec |
| */ |
| |
| static const unsigned char u2johabidx_choseong[32] = { |
| 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
| 0x10, 0x11, 0x12, 0x13, 0x14, |
| }; |
| static const unsigned char u2johabidx_jungseong[32] = { |
| 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
| 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 0x1a, 0x1b, 0x1c, 0x1d, |
| }; |
| static const unsigned char u2johabidx_jongseong[32] = { |
| 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
| 0x10, 0x11, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, |
| }; |
| static const DBCHAR u2johabjamo[] = { |
| 0x8841, 0x8c41, 0x8444, 0x9041, 0x8446, 0x8447, 0x9441, |
| 0x9841, 0x9c41, 0x844a, 0x844b, 0x844c, 0x844d, 0x844e, 0x844f, |
| 0x8450, 0xa041, 0xa441, 0xa841, 0x8454, 0xac41, 0xb041, 0xb441, |
| 0xb841, 0xbc41, 0xc041, 0xc441, 0xc841, 0xcc41, 0xd041, 0x8461, |
| 0x8481, 0x84a1, 0x84c1, 0x84e1, 0x8541, 0x8561, 0x8581, 0x85a1, |
| 0x85c1, 0x85e1, 0x8641, 0x8661, 0x8681, 0x86a1, 0x86c1, 0x86e1, |
| 0x8741, 0x8761, 0x8781, 0x87a1, |
| }; |
| |
| ENCODER(johab) |
| { |
| while (inleft > 0) { |
| Py_UNICODE c = IN1; |
| DBCHAR code; |
| |
| if (c < 0x80) { |
| WRITE1((unsigned char)c) |
| NEXT(1, 1) |
| continue; |
| } |
| UCS4INVALID(c) |
| |
| REQUIRE_OUTBUF(2) |
| |
| if (c >= 0xac00 && c <= 0xd7a3) { |
| c -= 0xac00; |
| code = 0x8000 | |
| (u2johabidx_choseong[c / 588] << 10) | |
| (u2johabidx_jungseong[(c / 28) % 21] << 5) | |
| u2johabidx_jongseong[c % 28]; |
| } |
| else if (c >= 0x3131 && c <= 0x3163) |
| code = u2johabjamo[c - 0x3131]; |
| else TRYMAP_ENC(cp949, code, c) { |
| unsigned char c1, c2, t2; |
| unsigned short t1; |
| |
| assert((code & 0x8000) == 0); |
| c1 = code >> 8; |
| c2 = code & 0xff; |
| if (((c1 >= 0x21 && c1 <= 0x2c) || |
| (c1 >= 0x4a && c1 <= 0x7d)) && |
| (c2 >= 0x21 && c2 <= 0x7e)) { |
| t1 = (c1 < 0x4a ? (c1 - 0x21 + 0x1b2) : |
| (c1 - 0x21 + 0x197)); |
| t2 = ((t1 & 1) ? 0x5e : 0) + (c2 - 0x21); |
| OUT1(t1 >> 1) |
| OUT2(t2 < 0x4e ? t2 + 0x31 : t2 + 0x43) |
| NEXT(1, 2) |
| continue; |
| } |
| else |
| return 1; |
| } |
| else |
| return 1; |
| |
| OUT1(code >> 8) |
| OUT2(code & 0xff) |
| NEXT(1, 2) |
| } |
| |
| return 0; |
| } |
| |
| #define FILL 0xfd |
| #define NONE 0xff |
| |
| static const unsigned char johabidx_choseong[32] = { |
| NONE, FILL, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, |
| 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, |
| 0x0e, 0x0f, 0x10, 0x11, 0x12, NONE, NONE, NONE, |
| NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, |
| }; |
| static const unsigned char johabidx_jungseong[32] = { |
| NONE, NONE, FILL, 0x00, 0x01, 0x02, 0x03, 0x04, |
| NONE, NONE, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, |
| NONE, NONE, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, |
| NONE, NONE, 0x11, 0x12, 0x13, 0x14, NONE, NONE, |
| }; |
| static const unsigned char johabidx_jongseong[32] = { |
| NONE, FILL, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, |
| 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, |
| 0x0f, 0x10, NONE, 0x11, 0x12, 0x13, 0x14, 0x15, |
| 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, NONE, NONE, |
| }; |
| |
| static const unsigned char johabjamo_choseong[32] = { |
| NONE, FILL, 0x31, 0x32, 0x34, 0x37, 0x38, 0x39, |
| 0x41, 0x42, 0x43, 0x45, 0x46, 0x47, 0x48, 0x49, |
| 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, NONE, NONE, NONE, |
| NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, |
| }; |
| static const unsigned char johabjamo_jungseong[32] = { |
| NONE, NONE, FILL, 0x4f, 0x50, 0x51, 0x52, 0x53, |
| NONE, NONE, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, |
| NONE, NONE, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, |
| NONE, NONE, 0x60, 0x61, 0x62, 0x63, NONE, NONE, |
| }; |
| static const unsigned char johabjamo_jongseong[32] = { |
| NONE, FILL, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, |
| 0x37, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, |
| 0x40, 0x41, NONE, 0x42, 0x44, 0x45, 0x46, 0x47, |
| 0x48, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, NONE, NONE, |
| }; |
| |
| DECODER(johab) |
| { |
| while (inleft > 0) { |
| unsigned char c = IN1, c2; |
| |
| REQUIRE_OUTBUF(1) |
| |
| if (c < 0x80) { |
| OUT1(c) |
| NEXT(1, 1) |
| continue; |
| } |
| |
| REQUIRE_INBUF(2) |
| c2 = IN2; |
| |
| if (c < 0xd8) { |
| /* johab hangul */ |
| unsigned char c_cho, c_jung, c_jong; |
| unsigned char i_cho, i_jung, i_jong; |
| |
| c_cho = (c >> 2) & 0x1f; |
| c_jung = ((c << 3) | c2 >> 5) & 0x1f; |
| c_jong = c2 & 0x1f; |
| |
| i_cho = johabidx_choseong[c_cho]; |
| i_jung = johabidx_jungseong[c_jung]; |
| i_jong = johabidx_jongseong[c_jong]; |
| |
| if (i_cho == NONE || i_jung == NONE || i_jong == NONE) |
| return 2; |
| |
| /* we don't use U+1100 hangul jamo yet. */ |
| if (i_cho == FILL) { |
| if (i_jung == FILL) { |
| if (i_jong == FILL) |
| OUT1(0x3000) |
| else |
| OUT1(0x3100 | |
| johabjamo_jongseong[c_jong]) |
| } |
| else { |
| if (i_jong == FILL) |
| OUT1(0x3100 | |
| johabjamo_jungseong[c_jung]) |
| else |
| return 2; |
| } |
| } else { |
| if (i_jung == FILL) { |
| if (i_jong == FILL) |
| OUT1(0x3100 | |
| johabjamo_choseong[c_cho]) |
| else |
| return 2; |
| } |
| else |
| OUT1(0xac00 + |
| i_cho * 588 + |
| i_jung * 28 + |
| (i_jong == FILL ? 0 : i_jong)) |
| } |
| NEXT(2, 1) |
| } else { |
| /* KS X 1001 except hangul jamos and syllables */ |
| if (c == 0xdf || c > 0xf9 || |
| c2 < 0x31 || (c2 >= 0x80 && c2 < 0x91) || |
| (c2 & 0x7f) == 0x7f || |
| (c == 0xda && (c2 >= 0xa1 && c2 <= 0xd3))) |
| return 2; |
| else { |
| unsigned char t1, t2; |
| |
| t1 = (c < 0xe0 ? 2 * (c - 0xd9) : |
| 2 * c - 0x197); |
| t2 = (c2 < 0x91 ? c2 - 0x31 : c2 - 0x43); |
| t1 = t1 + (t2 < 0x5e ? 0 : 1) + 0x21; |
| t2 = (t2 < 0x5e ? t2 : t2 - 0x5e) + 0x21; |
| |
| TRYMAP_DEC(ksx1001, **outbuf, t1, t2); |
| else return 2; |
| NEXT(2, 1) |
| } |
| } |
| } |
| |
| return 0; |
| } |
| #undef NONE |
| #undef FILL |
| |
| |
| BEGIN_MAPPINGS_LIST |
| MAPPING_DECONLY(ksx1001) |
| MAPPING_ENCONLY(cp949) |
| MAPPING_DECONLY(cp949ext) |
| END_MAPPINGS_LIST |
| |
| BEGIN_CODECS_LIST |
| CODEC_STATELESS(euc_kr) |
| CODEC_STATELESS(cp949) |
| CODEC_STATELESS(johab) |
| END_CODECS_LIST |
| |
| I_AM_A_MODULE_FOR(kr) |
