Hye-Shik Chang | 2bb146f | 2004-07-18 03:06:29 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * _codecs_jp.c: Codecs collection for Japanese encodings |
| 3 | * |
| 4 | * Written by Hye-Shik Chang <perky@FreeBSD.org> |
| 5 | * $CJKCodecs: _codecs_jp.c,v 1.14 2004/07/07 17:54:47 perky Exp $ |
| 6 | */ |
| 7 | |
| 8 | #define USING_BINARY_PAIR_SEARCH |
| 9 | #define EMPBASE 0x20000 |
| 10 | |
| 11 | #include "cjkcodecs.h" |
| 12 | #include "mappings_jp.h" |
| 13 | #include "mappings_jisx0213_pair.h" |
| 14 | #include "alg_jisx0201.h" |
| 15 | #include "emu_jisx0213_2000.h" |
| 16 | |
| 17 | /* |
| 18 | * CP932 codec |
| 19 | */ |
| 20 | |
| 21 | ENCODER(cp932) |
| 22 | { |
| 23 | while (inleft > 0) { |
| 24 | Py_UNICODE c = IN1; |
| 25 | DBCHAR code; |
| 26 | unsigned char c1, c2; |
| 27 | |
| 28 | if (c <= 0x80) { |
| 29 | WRITE1((unsigned char)c) |
| 30 | NEXT(1, 1) |
| 31 | continue; |
| 32 | } |
| 33 | else if (c >= 0xff61 && c <= 0xff9f) { |
| 34 | WRITE1(c - 0xfec0) |
| 35 | NEXT(1, 1) |
| 36 | continue; |
| 37 | } |
| 38 | else if (c >= 0xf8f0 && c <= 0xf8f3) { |
| 39 | /* Windows compatability */ |
| 40 | REQUIRE_OUTBUF(1) |
| 41 | if (c == 0xf8f0) |
| 42 | OUT1(0xa0) |
| 43 | else |
| 44 | OUT1(c - 0xfef1 + 0xfd) |
| 45 | NEXT(1, 1) |
| 46 | continue; |
| 47 | } |
| 48 | |
| 49 | UCS4INVALID(c) |
| 50 | REQUIRE_OUTBUF(2) |
| 51 | |
| 52 | TRYMAP_ENC(cp932ext, code, c) { |
| 53 | OUT1(code >> 8) |
| 54 | OUT2(code & 0xff) |
| 55 | } |
| 56 | else TRYMAP_ENC(jisxcommon, code, c) { |
| 57 | if (code & 0x8000) /* MSB set: JIS X 0212 */ |
| 58 | return 1; |
| 59 | |
| 60 | /* JIS X 0208 */ |
| 61 | c1 = code >> 8; |
| 62 | c2 = code & 0xff; |
| 63 | c2 = (((c1 - 0x21) & 1) ? 0x5e : 0) + (c2 - 0x21); |
| 64 | c1 = (c1 - 0x21) >> 1; |
| 65 | OUT1(c1 < 0x1f ? c1 + 0x81 : c1 + 0xc1) |
| 66 | OUT2(c2 < 0x3f ? c2 + 0x40 : c2 + 0x41) |
| 67 | } |
| 68 | else if (c >= 0xe000 && c < 0xe758) { |
| 69 | /* User-defined area */ |
| 70 | c1 = (Py_UNICODE)(c - 0xe000) / 188; |
| 71 | c2 = (Py_UNICODE)(c - 0xe000) % 188; |
| 72 | OUT1(c1 + 0xf0) |
| 73 | OUT2(c2 < 0x3f ? c2 + 0x40 : c2 + 0x41) |
| 74 | } |
| 75 | else |
| 76 | return 1; |
| 77 | |
| 78 | NEXT(1, 2) |
| 79 | } |
| 80 | |
| 81 | return 0; |
| 82 | } |
| 83 | |
| 84 | DECODER(cp932) |
| 85 | { |
| 86 | while (inleft > 0) { |
| 87 | unsigned char c = IN1, c2; |
| 88 | |
| 89 | REQUIRE_OUTBUF(1) |
| 90 | if (c <= 0x80) { |
| 91 | OUT1(c) |
| 92 | NEXT(1, 1) |
| 93 | continue; |
| 94 | } |
| 95 | else if (c >= 0xa0 && c <= 0xdf) { |
| 96 | if (c == 0xa0) |
| 97 | OUT1(0xf8f0) /* half-width katakana */ |
| 98 | else |
| 99 | OUT1(0xfec0 + c) |
| 100 | NEXT(1, 1) |
| 101 | continue; |
| 102 | } |
| 103 | else if (c >= 0xfd/* && c <= 0xff*/) { |
| 104 | /* Windows compatibility */ |
| 105 | OUT1(0xf8f1 - 0xfd + c) |
| 106 | NEXT(1, 1) |
| 107 | continue; |
| 108 | } |
| 109 | |
| 110 | REQUIRE_INBUF(2) |
| 111 | c2 = IN2; |
| 112 | |
| 113 | TRYMAP_DEC(cp932ext, **outbuf, c, c2); |
| 114 | else if ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xea)){ |
| 115 | if (c2 < 0x40 || (c2 > 0x7e && c2 < 0x80) || c2 > 0xfc) |
| 116 | return 2; |
| 117 | |
| 118 | c = (c < 0xe0 ? c - 0x81 : c - 0xc1); |
| 119 | c2 = (c2 < 0x80 ? c2 - 0x40 : c2 - 0x41); |
| 120 | c = (2 * c + (c2 < 0x5e ? 0 : 1) + 0x21); |
| 121 | c2 = (c2 < 0x5e ? c2 : c2 - 0x5e) + 0x21; |
| 122 | |
| 123 | TRYMAP_DEC(jisx0208, **outbuf, c, c2); |
| 124 | else return 2; |
| 125 | } |
| 126 | else if (c >= 0xf0 && c <= 0xf9) { |
| 127 | if ((c2 >= 0x40 && c2 <= 0x7e) || |
| 128 | (c2 >= 0x80 && c2 <= 0xfc)) |
| 129 | OUT1(0xe000 + 188 * (c - 0xf0) + |
| 130 | (c2 < 0x80 ? c2 - 0x40 : c2 - 0x41)) |
| 131 | else |
| 132 | return 2; |
| 133 | } |
| 134 | else |
| 135 | return 2; |
| 136 | |
| 137 | NEXT(2, 1) |
| 138 | } |
| 139 | |
| 140 | return 0; |
| 141 | } |
| 142 | |
| 143 | |
| 144 | /* |
| 145 | * EUC-JIS-2004 codec |
| 146 | */ |
| 147 | |
| 148 | ENCODER(euc_jis_2004) |
| 149 | { |
| 150 | while (inleft > 0) { |
| 151 | ucs4_t c = IN1; |
| 152 | DBCHAR code; |
| 153 | int insize; |
| 154 | |
| 155 | if (c < 0x80) { |
| 156 | WRITE1(c) |
| 157 | NEXT(1, 1) |
| 158 | continue; |
| 159 | } |
| 160 | |
| 161 | DECODE_SURROGATE(c) |
| 162 | insize = GET_INSIZE(c); |
| 163 | |
| 164 | if (c <= 0xFFFF) { |
| 165 | EMULATE_JISX0213_2000_ENCODE_BMP(code, c) |
| 166 | else TRYMAP_ENC(jisx0213_bmp, code, c) { |
| 167 | if (code == MULTIC) { |
| 168 | if (inleft < 2) { |
| 169 | if (flags & MBENC_FLUSH) { |
| 170 | code = find_pairencmap( |
| 171 | (ucs2_t)c, 0, |
| 172 | jisx0213_pair_encmap, |
| 173 | JISX0213_ENCPAIRS); |
| 174 | if (code == DBCINV) |
| 175 | return 1; |
| 176 | } |
| 177 | else |
| 178 | return MBERR_TOOFEW; |
| 179 | } |
| 180 | else { |
| 181 | code = find_pairencmap( |
| 182 | (ucs2_t)c, (*inbuf)[1], |
| 183 | jisx0213_pair_encmap, |
| 184 | JISX0213_ENCPAIRS); |
| 185 | if (code == DBCINV) { |
| 186 | code = find_pairencmap( |
| 187 | (ucs2_t)c, 0, |
| 188 | jisx0213_pair_encmap, |
| 189 | JISX0213_ENCPAIRS); |
| 190 | if (code == DBCINV) |
| 191 | return 1; |
| 192 | } else |
| 193 | insize = 2; |
| 194 | } |
| 195 | } |
| 196 | } |
| 197 | else TRYMAP_ENC(jisxcommon, code, c); |
| 198 | else if (c >= 0xff61 && c <= 0xff9f) { |
| 199 | /* JIS X 0201 half-width katakana */ |
| 200 | WRITE2(0x8e, c - 0xfec0) |
| 201 | NEXT(1, 2) |
| 202 | continue; |
| 203 | } |
| 204 | else if (c == 0xff3c) |
| 205 | /* F/W REVERSE SOLIDUS (see NOTES) */ |
| 206 | code = 0x2140; |
| 207 | else if (c == 0xff5e) |
| 208 | /* F/W TILDE (see NOTES) */ |
| 209 | code = 0x2232; |
| 210 | else |
| 211 | return 1; |
| 212 | } |
| 213 | else if (c >> 16 == EMPBASE >> 16) { |
| 214 | EMULATE_JISX0213_2000_ENCODE_EMP(code, c) |
| 215 | else TRYMAP_ENC(jisx0213_emp, code, c & 0xffff); |
| 216 | else return insize; |
| 217 | } |
| 218 | else |
| 219 | return insize; |
| 220 | |
| 221 | if (code & 0x8000) { |
| 222 | /* Codeset 2 */ |
| 223 | WRITE3(0x8f, code >> 8, (code & 0xFF) | 0x80) |
| 224 | NEXT(insize, 3) |
| 225 | } else { |
| 226 | /* Codeset 1 */ |
| 227 | WRITE2((code >> 8) | 0x80, (code & 0xFF) | 0x80) |
| 228 | NEXT(insize, 2) |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | return 0; |
| 233 | } |
| 234 | |
| 235 | DECODER(euc_jis_2004) |
| 236 | { |
| 237 | while (inleft > 0) { |
| 238 | unsigned char c = IN1; |
| 239 | ucs4_t code; |
| 240 | |
| 241 | REQUIRE_OUTBUF(1) |
| 242 | |
| 243 | if (c < 0x80) { |
| 244 | OUT1(c) |
| 245 | NEXT(1, 1) |
| 246 | continue; |
| 247 | } |
| 248 | |
| 249 | if (c == 0x8e) { |
| 250 | /* JIS X 0201 half-width katakana */ |
| 251 | unsigned char c2; |
| 252 | |
| 253 | REQUIRE_INBUF(2) |
| 254 | c2 = IN2; |
| 255 | if (c2 >= 0xa1 && c2 <= 0xdf) { |
| 256 | OUT1(0xfec0 + c2) |
| 257 | NEXT(2, 1) |
| 258 | } |
| 259 | else |
| 260 | return 2; |
| 261 | } |
| 262 | else if (c == 0x8f) { |
| 263 | unsigned char c2, c3; |
| 264 | |
| 265 | REQUIRE_INBUF(3) |
| 266 | c2 = IN2 ^ 0x80; |
| 267 | c3 = IN3 ^ 0x80; |
| 268 | |
| 269 | /* JIS X 0213 Plane 2 or JIS X 0212 (see NOTES) */ |
| 270 | EMULATE_JISX0213_2000_DECODE_PLANE2(**outbuf, c2, c3) |
| 271 | else TRYMAP_DEC(jisx0213_2_bmp, **outbuf, c2, c3) ; |
| 272 | else TRYMAP_DEC(jisx0213_2_emp, code, c2, c3) { |
| 273 | WRITEUCS4(EMPBASE | code) |
| 274 | NEXT_IN(3) |
| 275 | continue; |
| 276 | } |
| 277 | else TRYMAP_DEC(jisx0212, **outbuf, c2, c3) ; |
| 278 | else return 3; |
| 279 | NEXT(3, 1) |
| 280 | } |
| 281 | else { |
| 282 | unsigned char c2; |
| 283 | |
| 284 | REQUIRE_INBUF(2) |
| 285 | c ^= 0x80; |
| 286 | c2 = IN2 ^ 0x80; |
| 287 | |
| 288 | /* JIS X 0213 Plane 1 */ |
| 289 | EMULATE_JISX0213_2000_DECODE_PLANE1(**outbuf, c, c2) |
| 290 | else if (c == 0x21 && c2 == 0x40) **outbuf = 0xff3c; |
| 291 | else if (c == 0x22 && c2 == 0x32) **outbuf = 0xff5e; |
| 292 | else TRYMAP_DEC(jisx0208, **outbuf, c, c2); |
| 293 | else TRYMAP_DEC(jisx0213_1_bmp, **outbuf, c, c2); |
| 294 | else TRYMAP_DEC(jisx0213_1_emp, code, c, c2) { |
| 295 | WRITEUCS4(EMPBASE | code) |
| 296 | NEXT_IN(2) |
| 297 | continue; |
| 298 | } |
| 299 | else TRYMAP_DEC(jisx0213_pair, code, c, c2) { |
| 300 | WRITE2(code >> 16, code & 0xffff) |
| 301 | NEXT(2, 2) |
| 302 | continue; |
| 303 | } |
| 304 | else return 2; |
| 305 | NEXT(2, 1) |
| 306 | } |
| 307 | } |
| 308 | |
| 309 | return 0; |
| 310 | } |
| 311 | |
| 312 | |
| 313 | /* |
| 314 | * EUC-JP codec |
| 315 | */ |
| 316 | |
| 317 | ENCODER(euc_jp) |
| 318 | { |
| 319 | while (inleft > 0) { |
| 320 | Py_UNICODE c = IN1; |
| 321 | DBCHAR code; |
| 322 | |
| 323 | if (c < 0x80) { |
| 324 | WRITE1((unsigned char)c) |
| 325 | NEXT(1, 1) |
| 326 | continue; |
| 327 | } |
| 328 | |
| 329 | UCS4INVALID(c) |
| 330 | |
| 331 | TRYMAP_ENC(jisxcommon, code, c); |
| 332 | else if (c >= 0xff61 && c <= 0xff9f) { |
| 333 | /* JIS X 0201 half-width katakana */ |
| 334 | WRITE2(0x8e, c - 0xfec0) |
| 335 | NEXT(1, 2) |
| 336 | continue; |
| 337 | } |
| 338 | #ifndef STRICT_BUILD |
| 339 | else if (c == 0xff3c) /* FULL-WIDTH REVERSE SOLIDUS */ |
| 340 | code = 0x2140; |
| 341 | else if (c == 0xa5) { /* YEN SIGN */ |
| 342 | WRITE1(0x5c); |
| 343 | NEXT(1, 1) |
| 344 | continue; |
| 345 | } else if (c == 0x203e) { /* OVERLINE */ |
| 346 | WRITE1(0x7e); |
| 347 | NEXT(1, 1) |
| 348 | continue; |
| 349 | } |
| 350 | #endif |
| 351 | else |
| 352 | return 1; |
| 353 | |
| 354 | if (code & 0x8000) { |
| 355 | /* JIS X 0212 */ |
| 356 | WRITE3(0x8f, code >> 8, (code & 0xFF) | 0x80) |
| 357 | NEXT(1, 3) |
| 358 | } else { |
| 359 | /* JIS X 0208 */ |
| 360 | WRITE2((code >> 8) | 0x80, (code & 0xFF) | 0x80) |
| 361 | NEXT(1, 2) |
| 362 | } |
| 363 | } |
| 364 | |
| 365 | return 0; |
| 366 | } |
| 367 | |
| 368 | DECODER(euc_jp) |
| 369 | { |
| 370 | while (inleft > 0) { |
| 371 | unsigned char c = IN1; |
| 372 | |
| 373 | REQUIRE_OUTBUF(1) |
| 374 | |
| 375 | if (c < 0x80) { |
| 376 | OUT1(c) |
| 377 | NEXT(1, 1) |
| 378 | continue; |
| 379 | } |
| 380 | |
| 381 | if (c == 0x8e) { |
| 382 | /* JIS X 0201 half-width katakana */ |
| 383 | unsigned char c2; |
| 384 | |
| 385 | REQUIRE_INBUF(2) |
| 386 | c2 = IN2; |
| 387 | if (c2 >= 0xa1 && c2 <= 0xdf) { |
| 388 | OUT1(0xfec0 + c2) |
| 389 | NEXT(2, 1) |
| 390 | } |
| 391 | else |
| 392 | return 2; |
| 393 | } |
| 394 | else if (c == 0x8f) { |
| 395 | unsigned char c2, c3; |
| 396 | |
| 397 | REQUIRE_INBUF(3) |
| 398 | c2 = IN2; |
| 399 | c3 = IN3; |
| 400 | /* JIS X 0212 */ |
| 401 | TRYMAP_DEC(jisx0212, **outbuf, c2 ^ 0x80, c3 ^ 0x80) { |
| 402 | NEXT(3, 1) |
| 403 | } |
| 404 | else |
| 405 | return 3; |
| 406 | } |
| 407 | else { |
| 408 | unsigned char c2; |
| 409 | |
| 410 | REQUIRE_INBUF(2) |
| 411 | c2 = IN2; |
| 412 | /* JIS X 0208 */ |
| 413 | #ifndef STRICT_BUILD |
| 414 | if (c == 0xa1 && c2 == 0xc0) |
| 415 | /* FULL-WIDTH REVERSE SOLIDUS */ |
| 416 | **outbuf = 0xff3c; |
| 417 | else |
| 418 | #endif |
| 419 | TRYMAP_DEC(jisx0208, **outbuf, |
| 420 | c ^ 0x80, c2 ^ 0x80) ; |
| 421 | else return 2; |
| 422 | NEXT(2, 1) |
| 423 | } |
| 424 | } |
| 425 | |
| 426 | return 0; |
| 427 | } |
| 428 | |
| 429 | |
| 430 | /* |
| 431 | * SHIFT_JIS codec |
| 432 | */ |
| 433 | |
| 434 | ENCODER(shift_jis) |
| 435 | { |
| 436 | while (inleft > 0) { |
| 437 | Py_UNICODE c = IN1; |
| 438 | DBCHAR code; |
| 439 | unsigned char c1, c2; |
| 440 | |
| 441 | #ifdef STRICT_BUILD |
| 442 | JISX0201_R_ENCODE(c, code) |
| 443 | #else |
| 444 | if (c < 0x80) code = c; |
| 445 | else if (c == 0x00a5) code = 0x5c; /* YEN SIGN */ |
| 446 | else if (c == 0x203e) code = 0x7e; /* OVERLINE */ |
| 447 | #endif |
| 448 | else JISX0201_K_ENCODE(c, code) |
| 449 | else UCS4INVALID(c) |
| 450 | else code = NOCHAR; |
| 451 | |
| 452 | if (code < 0x80 || (code >= 0xa1 && code <= 0xdf)) { |
| 453 | REQUIRE_OUTBUF(1) |
| 454 | |
| 455 | OUT1((unsigned char)code) |
| 456 | NEXT(1, 1) |
| 457 | continue; |
| 458 | } |
| 459 | |
| 460 | REQUIRE_OUTBUF(2) |
| 461 | |
| 462 | if (code == NOCHAR) { |
| 463 | TRYMAP_ENC(jisxcommon, code, c); |
| 464 | #ifndef STRICT_BUILD |
| 465 | else if (c == 0xff3c) |
| 466 | code = 0x2140; /* FULL-WIDTH REVERSE SOLIDUS */ |
| 467 | #endif |
| 468 | else |
| 469 | return 1; |
| 470 | |
| 471 | if (code & 0x8000) /* MSB set: JIS X 0212 */ |
| 472 | return 1; |
| 473 | } |
| 474 | |
| 475 | c1 = code >> 8; |
| 476 | c2 = code & 0xff; |
| 477 | c2 = (((c1 - 0x21) & 1) ? 0x5e : 0) + (c2 - 0x21); |
| 478 | c1 = (c1 - 0x21) >> 1; |
| 479 | OUT1(c1 < 0x1f ? c1 + 0x81 : c1 + 0xc1) |
| 480 | OUT2(c2 < 0x3f ? c2 + 0x40 : c2 + 0x41) |
| 481 | NEXT(1, 2) |
| 482 | } |
| 483 | |
| 484 | return 0; |
| 485 | } |
| 486 | |
| 487 | DECODER(shift_jis) |
| 488 | { |
| 489 | while (inleft > 0) { |
| 490 | unsigned char c = IN1; |
| 491 | |
| 492 | REQUIRE_OUTBUF(1) |
| 493 | |
| 494 | #ifdef STRICT_BUILD |
| 495 | JISX0201_R_DECODE(c, **outbuf) |
| 496 | #else |
| 497 | if (c < 0x80) **outbuf = c; |
| 498 | #endif |
| 499 | else JISX0201_K_DECODE(c, **outbuf) |
| 500 | else if ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xea)){ |
| 501 | unsigned char c1, c2; |
| 502 | |
| 503 | REQUIRE_INBUF(2) |
| 504 | c2 = IN2; |
| 505 | if (c2 < 0x40 || (c2 > 0x7e && c2 < 0x80) || c2 > 0xfc) |
| 506 | return 2; |
| 507 | |
| 508 | c1 = (c < 0xe0 ? c - 0x81 : c - 0xc1); |
| 509 | c2 = (c2 < 0x80 ? c2 - 0x40 : c2 - 0x41); |
| 510 | c1 = (2 * c1 + (c2 < 0x5e ? 0 : 1) + 0x21); |
| 511 | c2 = (c2 < 0x5e ? c2 : c2 - 0x5e) + 0x21; |
| 512 | |
| 513 | #ifndef STRICT_BUILD |
| 514 | if (c1 == 0x21 && c2 == 0x40) { |
| 515 | /* FULL-WIDTH REVERSE SOLIDUS */ |
| 516 | OUT1(0xff3c) |
| 517 | NEXT(2, 1) |
| 518 | continue; |
| 519 | } |
| 520 | #endif |
| 521 | TRYMAP_DEC(jisx0208, **outbuf, c1, c2) { |
| 522 | NEXT(2, 1) |
| 523 | continue; |
| 524 | } |
| 525 | else |
| 526 | return 2; |
| 527 | } |
| 528 | else |
| 529 | return 2; |
| 530 | |
| 531 | NEXT(1, 1) /* JIS X 0201 */ |
| 532 | } |
| 533 | |
| 534 | return 0; |
| 535 | } |
| 536 | |
| 537 | |
| 538 | /* |
| 539 | * SHIFT_JIS-2004 codec |
| 540 | */ |
| 541 | |
| 542 | ENCODER(shift_jis_2004) |
| 543 | { |
| 544 | while (inleft > 0) { |
| 545 | ucs4_t c = IN1; |
| 546 | DBCHAR code = NOCHAR; |
| 547 | int c1, c2; |
| 548 | size_t insize; |
| 549 | |
| 550 | JISX0201_ENCODE(c, code) |
| 551 | else DECODE_SURROGATE(c) |
| 552 | |
| 553 | if (code < 0x80 || (code >= 0xa1 && code <= 0xdf)) { |
| 554 | WRITE1((unsigned char)code) |
| 555 | NEXT(1, 1) |
| 556 | continue; |
| 557 | } |
| 558 | |
| 559 | REQUIRE_OUTBUF(2) |
| 560 | insize = GET_INSIZE(c); |
| 561 | |
| 562 | if (code == NOCHAR) { |
| 563 | if (c <= 0xffff) { |
| 564 | EMULATE_JISX0213_2000_ENCODE_BMP(code, c) |
| 565 | else TRYMAP_ENC(jisx0213_bmp, code, c) { |
| 566 | if (code == MULTIC) { |
| 567 | if (inleft < 2) { |
| 568 | if (flags & MBENC_FLUSH) { |
| 569 | code = find_pairencmap |
| 570 | ((ucs2_t)c, 0, |
| 571 | jisx0213_pair_encmap, |
| 572 | JISX0213_ENCPAIRS); |
| 573 | if (code == DBCINV) |
| 574 | return 1; |
| 575 | } |
| 576 | else |
| 577 | return MBERR_TOOFEW; |
| 578 | } |
| 579 | else { |
| 580 | code = find_pairencmap( |
| 581 | (ucs2_t)c, IN2, |
| 582 | jisx0213_pair_encmap, |
| 583 | JISX0213_ENCPAIRS); |
| 584 | if (code == DBCINV) { |
| 585 | code = find_pairencmap( |
| 586 | (ucs2_t)c, 0, |
| 587 | jisx0213_pair_encmap, |
| 588 | JISX0213_ENCPAIRS); |
| 589 | if (code == DBCINV) |
| 590 | return 1; |
| 591 | } |
| 592 | else |
| 593 | insize = 2; |
| 594 | } |
| 595 | } |
| 596 | } |
| 597 | else TRYMAP_ENC(jisxcommon, code, c) { |
| 598 | /* abandon JIS X 0212 codes */ |
| 599 | if (code & 0x8000) |
| 600 | return 1; |
| 601 | } |
| 602 | else return 1; |
| 603 | } |
| 604 | else if (c >> 16 == EMPBASE >> 16) { |
| 605 | EMULATE_JISX0213_2000_ENCODE_EMP(code, c) |
| 606 | else TRYMAP_ENC(jisx0213_emp, code, c&0xffff); |
| 607 | else return insize; |
| 608 | } |
| 609 | else |
| 610 | return insize; |
| 611 | } |
| 612 | |
| 613 | c1 = code >> 8; |
| 614 | c2 = (code & 0xff) - 0x21; |
| 615 | |
| 616 | if (c1 & 0x80) { /* Plane 2 */ |
| 617 | if (c1 >= 0xee) c1 -= 0x87; |
| 618 | else if (c1 >= 0xac || c1 == 0xa8) c1 -= 0x49; |
| 619 | else c1 -= 0x43; |
| 620 | } |
| 621 | else /* Plane 1 */ |
| 622 | c1 -= 0x21; |
| 623 | |
| 624 | if (c1 & 1) c2 += 0x5e; |
| 625 | c1 >>= 1; |
| 626 | OUT1(c1 + (c1 < 0x1f ? 0x81 : 0xc1)) |
| 627 | OUT2(c2 + (c2 < 0x3f ? 0x40 : 0x41)) |
| 628 | |
| 629 | NEXT(insize, 2) |
| 630 | } |
| 631 | |
| 632 | return 0; |
| 633 | } |
| 634 | |
| 635 | DECODER(shift_jis_2004) |
| 636 | { |
| 637 | while (inleft > 0) { |
| 638 | unsigned char c = IN1; |
| 639 | |
| 640 | REQUIRE_OUTBUF(1) |
| 641 | JISX0201_DECODE(c, **outbuf) |
| 642 | else if ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xfc)){ |
| 643 | unsigned char c1, c2 = IN2; |
| 644 | ucs4_t code; |
| 645 | |
| 646 | REQUIRE_INBUF(2) |
| 647 | if (c2 < 0x40 || (c2 > 0x7e && c2 < 0x80) || c2 > 0xfc) |
| 648 | return 2; |
| 649 | |
| 650 | c1 = (c < 0xe0 ? c - 0x81 : c - 0xc1); |
| 651 | c2 = (c2 < 0x80 ? c2 - 0x40 : c2 - 0x41); |
| 652 | c1 = (2 * c1 + (c2 < 0x5e ? 0 : 1)); |
| 653 | c2 = (c2 < 0x5e ? c2 : c2 - 0x5e) + 0x21; |
| 654 | |
| 655 | if (c1 < 0x5e) { /* Plane 1 */ |
| 656 | c1 += 0x21; |
| 657 | EMULATE_JISX0213_2000_DECODE_PLANE1(**outbuf, |
| 658 | c1, c2) |
| 659 | else TRYMAP_DEC(jisx0208, **outbuf, c1, c2) { |
| 660 | NEXT_OUT(1) |
| 661 | } |
| 662 | else TRYMAP_DEC(jisx0213_1_bmp, **outbuf, |
| 663 | c1, c2) { |
| 664 | NEXT_OUT(1) |
| 665 | } |
| 666 | else TRYMAP_DEC(jisx0213_1_emp, code, c1, c2) { |
| 667 | WRITEUCS4(EMPBASE | code) |
| 668 | } |
| 669 | else TRYMAP_DEC(jisx0213_pair, code, c1, c2) { |
| 670 | WRITE2(code >> 16, code & 0xffff) |
| 671 | NEXT_OUT(2) |
| 672 | } |
| 673 | else |
| 674 | return 2; |
| 675 | NEXT_IN(2) |
| 676 | } |
| 677 | else { /* Plane 2 */ |
| 678 | if (c1 >= 0x67) c1 += 0x07; |
| 679 | else if (c1 >= 0x63 || c1 == 0x5f) c1 -= 0x37; |
| 680 | else c1 -= 0x3d; |
| 681 | |
| 682 | EMULATE_JISX0213_2000_DECODE_PLANE2(**outbuf, |
| 683 | c1, c2) |
| 684 | else TRYMAP_DEC(jisx0213_2_bmp, **outbuf, |
| 685 | c1, c2) ; |
| 686 | else TRYMAP_DEC(jisx0213_2_emp, code, c1, c2) { |
| 687 | WRITEUCS4(EMPBASE | code) |
| 688 | NEXT_IN(2) |
| 689 | continue; |
| 690 | } |
| 691 | else |
| 692 | return 2; |
| 693 | NEXT(2, 1) |
| 694 | } |
| 695 | continue; |
| 696 | } |
| 697 | else |
| 698 | return 2; |
| 699 | |
| 700 | NEXT(1, 1) /* JIS X 0201 */ |
| 701 | } |
| 702 | |
| 703 | return 0; |
| 704 | } |
| 705 | |
| 706 | |
| 707 | BEGIN_MAPPINGS_LIST |
| 708 | MAPPING_DECONLY(jisx0208) |
| 709 | MAPPING_DECONLY(jisx0212) |
| 710 | MAPPING_ENCONLY(jisxcommon) |
| 711 | MAPPING_DECONLY(jisx0213_1_bmp) |
| 712 | MAPPING_DECONLY(jisx0213_2_bmp) |
| 713 | MAPPING_ENCONLY(jisx0213_bmp) |
| 714 | MAPPING_DECONLY(jisx0213_1_emp) |
| 715 | MAPPING_DECONLY(jisx0213_2_emp) |
| 716 | MAPPING_ENCONLY(jisx0213_emp) |
| 717 | MAPPING_ENCDEC(jisx0213_pair) |
| 718 | MAPPING_ENCDEC(cp932ext) |
| 719 | END_MAPPINGS_LIST |
| 720 | |
| 721 | BEGIN_CODECS_LIST |
| 722 | CODEC_STATELESS(shift_jis) |
| 723 | CODEC_STATELESS(cp932) |
| 724 | CODEC_STATELESS(euc_jp) |
| 725 | CODEC_STATELESS(shift_jis_2004) |
| 726 | CODEC_STATELESS(euc_jis_2004) |
| 727 | { "euc_jisx0213", (void *)2000, NULL, _STATELESS_METHODS(euc_jis_2004) }, |
| 728 | { "shift_jisx0213", (void *)2000, NULL, _STATELESS_METHODS(shift_jis_2004) }, |
| 729 | END_CODECS_LIST |
| 730 | |
| 731 | I_AM_A_MODULE_FOR(jp) |