Mercurial > ~mikael > mcabber > hg
annotate mcabber/libjabber/xmltok.c @ 946:5c1dfc8e54d7 0.8.0
Ready for release 0.8.0
| author | Mikael Berthe <mikael@lilotux.net> |
|---|---|
| date | Sun, 13 Aug 2006 21:01:30 +0200 |
| parents | 0aa9015f06df |
| children |
| rev | line source |
|---|---|
| 25 | 1 /* |
| 2 The contents of this file are subject to the Mozilla Public License | |
| 3 Version 1.1 (the "License"); you may not use this file except in | |
| 4 compliance with the License. You may obtain a copy of the License at | |
| 5 http://www.mozilla.org/MPL/ | |
| 6 | |
| 7 Software distributed under the License is distributed on an "AS IS" | |
| 8 basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the | |
| 9 License for the specific language governing rights and limitations | |
| 10 under the License. | |
| 11 | |
| 12 The Original Code is expat. | |
| 13 | |
| 14 The Initial Developer of the Original Code is James Clark. | |
| 15 Portions created by James Clark are Copyright (C) 1998, 1999 | |
| 16 James Clark. All Rights Reserved. | |
| 17 | |
| 18 Contributor(s): | |
| 19 | |
| 20 Alternatively, the contents of this file may be used under the terms | |
| 21 of the GNU General Public License (the "GPL"), in which case the | |
| 22 provisions of the GPL are applicable instead of those above. If you | |
| 23 wish to allow use of your version of this file only under the terms of | |
| 24 the GPL and not to allow others to use your version of this file under | |
| 25 the MPL, indicate your decision by deleting the provisions above and | |
| 26 replace them with the notice and other provisions required by the | |
| 27 GPL. If you do not delete the provisions above, a recipient may use | |
| 28 your version of this file under either the MPL or the GPL. | |
| 29 */ | |
| 30 | |
| 31 #include "xmldef.h" | |
| 32 #include "xmltok.h" | |
| 33 #include "nametab.h" | |
| 34 | |
| 35 #define VTABLE1 \ | |
| 36 { PREFIX(prologTok), PREFIX(contentTok), PREFIX(cdataSectionTok) }, \ | |
| 37 { PREFIX(attributeValueTok), PREFIX(entityValueTok) }, \ | |
| 38 PREFIX(sameName), \ | |
| 39 PREFIX(nameMatchesAscii), \ | |
| 40 PREFIX(nameLength), \ | |
| 41 PREFIX(skipS), \ | |
| 42 PREFIX(getAtts), \ | |
| 43 PREFIX(charRefNumber), \ | |
| 44 PREFIX(predefinedEntityName), \ | |
| 45 PREFIX(updatePosition), \ | |
| 46 PREFIX(isPublicId) | |
| 47 | |
| 48 #define VTABLE VTABLE1, PREFIX(toUtf8), PREFIX(toUtf16) | |
| 49 | |
| 50 #define UCS2_GET_NAMING(pages, hi, lo) \ | |
| 51 (namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1 << ((lo) & 0x1F))) | |
| 52 | |
| 53 /* A 2 byte UTF-8 representation splits the characters 11 bits | |
| 54 between the bottom 5 and 6 bits of the bytes. | |
| 55 We need 8 bits to index into pages, 3 bits to add to that index and | |
| 56 5 bits to generate the mask. */ | |
| 57 #define UTF8_GET_NAMING2(pages, byte) \ | |
| 58 (namingBitmap[((pages)[(((byte)[0]) >> 2) & 7] << 3) \ | |
| 59 + ((((byte)[0]) & 3) << 1) \ | |
| 60 + ((((byte)[1]) >> 5) & 1)] \ | |
| 61 & (1 << (((byte)[1]) & 0x1F))) | |
| 62 | |
| 63 /* A 3 byte UTF-8 representation splits the characters 16 bits | |
| 64 between the bottom 4, 6 and 6 bits of the bytes. | |
| 65 We need 8 bits to index into pages, 3 bits to add to that index and | |
| 66 5 bits to generate the mask. */ | |
| 67 #define UTF8_GET_NAMING3(pages, byte) \ | |
| 68 (namingBitmap[((pages)[((((byte)[0]) & 0xF) << 4) \ | |
| 69 + ((((byte)[1]) >> 2) & 0xF)] \ | |
| 70 << 3) \ | |
| 71 + ((((byte)[1]) & 3) << 1) \ | |
| 72 + ((((byte)[2]) >> 5) & 1)] \ | |
| 73 & (1 << (((byte)[2]) & 0x1F))) | |
| 74 | |
| 75 #define UTF8_GET_NAMING(pages, p, n) \ | |
| 76 ((n) == 2 \ | |
| 77 ? UTF8_GET_NAMING2(pages, (const unsigned char *)(p)) \ | |
| 78 : ((n) == 3 \ | |
| 79 ? UTF8_GET_NAMING3(pages, (const unsigned char *)(p)) \ | |
| 80 : 0)) | |
| 81 | |
| 82 #define UTF8_INVALID3(p) \ | |
| 83 ((*p) == 0xED \ | |
| 84 ? (((p)[1] & 0x20) != 0) \ | |
| 85 : ((*p) == 0xEF \ | |
| 86 ? ((p)[1] == 0xBF && ((p)[2] == 0xBF || (p)[2] == 0xBE)) \ | |
| 87 : 0)) | |
| 88 | |
| 89 #define UTF8_INVALID4(p) ((*p) == 0xF4 && ((p)[1] & 0x30) != 0) | |
| 90 | |
| 91 static | |
| 92 int isNever(const ENCODING *enc, const char *p) | |
| 93 { | |
| 94 return 0; | |
| 95 } | |
| 96 | |
| 97 static | |
| 98 int utf8_isName2(const ENCODING *enc, const char *p) | |
| 99 { | |
| 100 return UTF8_GET_NAMING2(namePages, (const unsigned char *)p); | |
| 101 } | |
| 102 | |
| 103 static | |
| 104 int utf8_isName3(const ENCODING *enc, const char *p) | |
| 105 { | |
| 106 return UTF8_GET_NAMING3(namePages, (const unsigned char *)p); | |
| 107 } | |
| 108 | |
| 109 #define utf8_isName4 isNever | |
| 110 | |
| 111 static | |
| 112 int utf8_isNmstrt2(const ENCODING *enc, const char *p) | |
| 113 { | |
| 114 return UTF8_GET_NAMING2(nmstrtPages, (const unsigned char *)p); | |
| 115 } | |
| 116 | |
| 117 static | |
| 118 int utf8_isNmstrt3(const ENCODING *enc, const char *p) | |
| 119 { | |
| 120 return UTF8_GET_NAMING3(nmstrtPages, (const unsigned char *)p); | |
| 121 } | |
| 122 | |
| 123 #define utf8_isNmstrt4 isNever | |
| 124 | |
| 125 #define utf8_isInvalid2 isNever | |
| 126 | |
| 127 static | |
| 128 int utf8_isInvalid3(const ENCODING *enc, const char *p) | |
| 129 { | |
| 130 return UTF8_INVALID3((const unsigned char *)p); | |
| 131 } | |
| 132 | |
| 133 static | |
| 134 int utf8_isInvalid4(const ENCODING *enc, const char *p) | |
| 135 { | |
| 136 return UTF8_INVALID4((const unsigned char *)p); | |
| 137 } | |
| 138 | |
| 139 struct normal_encoding { | |
| 140 ENCODING enc; | |
| 141 unsigned char type[256]; | |
| 142 #ifdef XML_MIN_SIZE | |
| 143 int (*byteType)(const ENCODING *, const char *); | |
| 144 int (*isNameMin)(const ENCODING *, const char *); | |
| 145 int (*isNmstrtMin)(const ENCODING *, const char *); | |
| 146 int (*byteToAscii)(const ENCODING *, const char *); | |
| 147 int (*charMatches)(const ENCODING *, const char *, int); | |
| 148 #endif /* XML_MIN_SIZE */ | |
| 149 int (*isName2)(const ENCODING *, const char *); | |
| 150 int (*isName3)(const ENCODING *, const char *); | |
| 151 int (*isName4)(const ENCODING *, const char *); | |
| 152 int (*isNmstrt2)(const ENCODING *, const char *); | |
| 153 int (*isNmstrt3)(const ENCODING *, const char *); | |
| 154 int (*isNmstrt4)(const ENCODING *, const char *); | |
| 155 int (*isInvalid2)(const ENCODING *, const char *); | |
| 156 int (*isInvalid3)(const ENCODING *, const char *); | |
| 157 int (*isInvalid4)(const ENCODING *, const char *); | |
| 158 }; | |
| 159 | |
| 160 #ifdef XML_MIN_SIZE | |
| 161 | |
| 162 #define STANDARD_VTABLE(E) \ | |
| 163 E ## byteType, \ | |
| 164 E ## isNameMin, \ | |
| 165 E ## isNmstrtMin, \ | |
| 166 E ## byteToAscii, \ | |
| 167 E ## charMatches, | |
| 168 | |
| 169 #else | |
| 170 | |
| 171 #define STANDARD_VTABLE(E) /* as nothing */ | |
| 172 | |
| 173 #endif | |
| 174 | |
| 175 #define NORMAL_VTABLE(E) \ | |
| 176 E ## isName2, \ | |
| 177 E ## isName3, \ | |
| 178 E ## isName4, \ | |
| 179 E ## isNmstrt2, \ | |
| 180 E ## isNmstrt3, \ | |
| 181 E ## isNmstrt4, \ | |
| 182 E ## isInvalid2, \ | |
| 183 E ## isInvalid3, \ | |
| 184 E ## isInvalid4 | |
| 185 | |
| 186 static int checkCharRefNumber(int); | |
| 187 | |
| 188 #include "xmltok_impl.h" | |
| 189 | |
| 190 #ifdef XML_MIN_SIZE | |
| 191 #define sb_isNameMin isNever | |
| 192 #define sb_isNmstrtMin isNever | |
| 193 #endif | |
| 194 | |
| 195 #ifdef XML_MIN_SIZE | |
| 196 #define MINBPC(enc) ((enc)->minBytesPerChar) | |
| 197 #else | |
| 198 /* minimum bytes per character */ | |
| 199 #define MINBPC(enc) 1 | |
| 200 #endif | |
| 201 | |
| 202 #define SB_BYTE_TYPE(enc, p) \ | |
| 203 (((struct normal_encoding *)(enc))->type[(unsigned char)*(p)]) | |
| 204 | |
| 205 #ifdef XML_MIN_SIZE | |
| 206 static | |
| 207 int sb_byteType(const ENCODING *enc, const char *p) | |
| 208 { | |
| 209 return SB_BYTE_TYPE(enc, p); | |
| 210 } | |
| 211 #define BYTE_TYPE(enc, p) \ | |
| 212 (((const struct normal_encoding *)(enc))->byteType(enc, p)) | |
| 213 #else | |
| 214 #define BYTE_TYPE(enc, p) SB_BYTE_TYPE(enc, p) | |
| 215 #endif | |
| 216 | |
| 217 #ifdef XML_MIN_SIZE | |
| 218 #define BYTE_TO_ASCII(enc, p) \ | |
| 219 (((const struct normal_encoding *)(enc))->byteToAscii(enc, p)) | |
| 220 static | |
| 221 int sb_byteToAscii(const ENCODING *enc, const char *p) | |
| 222 { | |
| 223 return *p; | |
| 224 } | |
| 225 #else | |
| 226 #define BYTE_TO_ASCII(enc, p) (*p) | |
| 227 #endif | |
| 228 | |
| 229 #define IS_NAME_CHAR(enc, p, n) \ | |
| 230 (((const struct normal_encoding *)(enc))->isName ## n(enc, p)) | |
| 231 #define IS_NMSTRT_CHAR(enc, p, n) \ | |
| 232 (((const struct normal_encoding *)(enc))->isNmstrt ## n(enc, p)) | |
| 233 #define IS_INVALID_CHAR(enc, p, n) \ | |
| 234 (((const struct normal_encoding *)(enc))->isInvalid ## n(enc, p)) | |
| 235 | |
| 236 #ifdef XML_MIN_SIZE | |
| 237 #define IS_NAME_CHAR_MINBPC(enc, p) \ | |
| 238 (((const struct normal_encoding *)(enc))->isNameMin(enc, p)) | |
| 239 #define IS_NMSTRT_CHAR_MINBPC(enc, p) \ | |
| 240 (((const struct normal_encoding *)(enc))->isNmstrtMin(enc, p)) | |
| 241 #else | |
| 242 #define IS_NAME_CHAR_MINBPC(enc, p) (0) | |
| 243 #define IS_NMSTRT_CHAR_MINBPC(enc, p) (0) | |
| 244 #endif | |
| 245 | |
| 246 #ifdef XML_MIN_SIZE | |
| 247 #define CHAR_MATCHES(enc, p, c) \ | |
| 248 (((const struct normal_encoding *)(enc))->charMatches(enc, p, c)) | |
| 249 static | |
| 250 int sb_charMatches(const ENCODING *enc, const char *p, int c) | |
| 251 { | |
| 252 return *p == c; | |
| 253 } | |
| 254 #else | |
| 255 /* c is an ASCII character */ | |
| 256 #define CHAR_MATCHES(enc, p, c) (*(p) == c) | |
| 257 #endif | |
| 258 | |
| 259 #define PREFIX(ident) normal_ ## ident | |
| 260 #include "xmltok_impl_c.h" | |
| 261 | |
| 262 #undef MINBPC | |
| 263 #undef BYTE_TYPE | |
| 264 #undef BYTE_TO_ASCII | |
| 265 #undef CHAR_MATCHES | |
| 266 #undef IS_NAME_CHAR | |
| 267 #undef IS_NAME_CHAR_MINBPC | |
| 268 #undef IS_NMSTRT_CHAR | |
| 269 #undef IS_NMSTRT_CHAR_MINBPC | |
| 270 #undef IS_INVALID_CHAR | |
| 271 | |
| 272 enum { /* UTF8_cvalN is value of masked first byte of N byte sequence */ | |
| 273 UTF8_cval1 = 0x00, | |
| 274 UTF8_cval2 = 0xc0, | |
| 275 UTF8_cval3 = 0xe0, | |
| 276 UTF8_cval4 = 0xf0 | |
| 277 }; | |
| 278 | |
| 279 static | |
| 280 void utf8_toUtf8(const ENCODING *enc, | |
| 281 const char **fromP, const char *fromLim, | |
| 282 char **toP, const char *toLim) | |
| 283 { | |
| 284 char *to; | |
| 285 const char *from; | |
| 286 if (fromLim - *fromP > toLim - *toP) { | |
| 287 /* Avoid copying partial characters. */ | |
| 288 for (fromLim = *fromP + (toLim - *toP); fromLim > *fromP; fromLim--) | |
| 289 if (((unsigned char)fromLim[-1] & 0xc0) != 0x80) | |
| 290 break; | |
| 291 } | |
| 292 for (to = *toP, from = *fromP; from != fromLim; from++, to++) | |
| 293 *to = *from; | |
| 294 *fromP = from; | |
| 295 *toP = to; | |
| 296 } | |
| 297 | |
| 298 static | |
| 299 void utf8_toUtf16(const ENCODING *enc, | |
| 300 const char **fromP, const char *fromLim, | |
| 301 unsigned short **toP, const unsigned short *toLim) | |
| 302 { | |
| 303 unsigned short *to = *toP; | |
| 304 const char *from = *fromP; | |
| 305 while (from != fromLim && to != toLim) { | |
| 306 switch (((struct normal_encoding *)enc)->type[(unsigned char)*from]) { | |
| 307 case BT_LEAD2: | |
| 308 *to++ = ((from[0] & 0x1f) << 6) | (from[1] & 0x3f); | |
| 309 from += 2; | |
| 310 break; | |
| 311 case BT_LEAD3: | |
| 312 *to++ = ((from[0] & 0xf) << 12) | ((from[1] & 0x3f) << 6) | (from[2] & 0x3f); | |
| 313 from += 3; | |
| 314 break; | |
| 315 case BT_LEAD4: | |
| 316 { | |
| 317 unsigned long n; | |
| 318 if (to + 1 == toLim) | |
| 319 break; | |
| 320 n = ((from[0] & 0x7) << 18) | ((from[1] & 0x3f) << 12) | ((from[2] & 0x3f) << 6) | (from[3] & 0x3f); | |
| 321 n -= 0x10000; | |
| 322 to[0] = (unsigned short)((n >> 10) | 0xD800); | |
| 323 to[1] = (unsigned short)((n & 0x3FF) | 0xDC00); | |
| 324 to += 2; | |
| 325 from += 4; | |
| 326 } | |
| 327 break; | |
| 328 default: | |
| 329 *to++ = *from++; | |
| 330 break; | |
| 331 } | |
| 332 } | |
| 333 *fromP = from; | |
| 334 *toP = to; | |
| 335 } | |
| 336 | |
| 337 #ifdef XML_NS | |
| 338 static const struct normal_encoding utf8_encoding_ns = { | |
| 339 { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, | |
| 340 { | |
| 341 #include "asciitab.h" | |
| 342 #include "utf8tab.h" | |
| 343 }, | |
| 344 STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) | |
| 345 }; | |
| 346 #endif | |
| 347 | |
| 348 static const struct normal_encoding utf8_encoding = { | |
| 349 { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, | |
| 350 { | |
| 351 #define BT_COLON BT_NMSTRT | |
| 352 #include "asciitab.h" | |
| 353 #undef BT_COLON | |
| 354 #include "utf8tab.h" | |
| 355 }, | |
| 356 STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) | |
| 357 }; | |
| 358 | |
| 359 #ifdef XML_NS | |
| 360 | |
| 361 static const struct normal_encoding internal_utf8_encoding_ns = { | |
| 362 { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, | |
| 363 { | |
| 364 #include "iasciitab.h" | |
| 365 #include "utf8tab.h" | |
| 366 }, | |
| 367 STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) | |
| 368 }; | |
| 369 | |
| 370 #endif | |
| 371 | |
| 372 static const struct normal_encoding internal_utf8_encoding = { | |
| 373 { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, | |
| 374 { | |
| 375 #define BT_COLON BT_NMSTRT | |
| 376 #include "iasciitab.h" | |
| 377 #undef BT_COLON | |
| 378 #include "utf8tab.h" | |
| 379 }, | |
| 380 STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) | |
| 381 }; | |
| 382 | |
| 383 static | |
| 384 void latin1_toUtf8(const ENCODING *enc, | |
| 385 const char **fromP, const char *fromLim, | |
| 386 char **toP, const char *toLim) | |
| 387 { | |
| 388 for (;;) { | |
| 389 unsigned char c; | |
| 390 if (*fromP == fromLim) | |
| 391 break; | |
| 392 c = (unsigned char)**fromP; | |
| 393 if (c & 0x80) { | |
| 394 if (toLim - *toP < 2) | |
| 395 break; | |
| 396 *(*toP)++ = ((c >> 6) | UTF8_cval2); | |
| 397 *(*toP)++ = ((c & 0x3f) | 0x80); | |
| 398 (*fromP)++; | |
| 399 } | |
| 400 else { | |
| 401 if (*toP == toLim) | |
| 402 break; | |
| 403 *(*toP)++ = *(*fromP)++; | |
| 404 } | |
| 405 } | |
| 406 } | |
| 407 | |
| 408 static | |
| 409 void latin1_toUtf16(const ENCODING *enc, | |
| 410 const char **fromP, const char *fromLim, | |
| 411 unsigned short **toP, const unsigned short *toLim) | |
| 412 { | |
| 413 while (*fromP != fromLim && *toP != toLim) | |
| 414 *(*toP)++ = (unsigned char)*(*fromP)++; | |
| 415 } | |
| 416 | |
| 417 #ifdef XML_NS | |
| 418 | |
| 419 static const struct normal_encoding latin1_encoding_ns = { | |
| 420 { VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 }, | |
| 421 { | |
| 422 #include "asciitab.h" | |
| 423 #include "latin1tab.h" | |
| 424 }, | |
| 425 STANDARD_VTABLE(sb_) | |
| 426 }; | |
| 427 | |
| 428 #endif | |
| 429 | |
| 430 static const struct normal_encoding latin1_encoding = { | |
| 431 { VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 }, | |
| 432 { | |
| 433 #define BT_COLON BT_NMSTRT | |
| 434 #include "asciitab.h" | |
| 435 #undef BT_COLON | |
| 436 #include "latin1tab.h" | |
| 437 }, | |
| 438 STANDARD_VTABLE(sb_) | |
| 439 }; | |
| 440 | |
| 441 static | |
| 442 void ascii_toUtf8(const ENCODING *enc, | |
| 443 const char **fromP, const char *fromLim, | |
| 444 char **toP, const char *toLim) | |
| 445 { | |
| 446 while (*fromP != fromLim && *toP != toLim) | |
| 447 *(*toP)++ = *(*fromP)++; | |
| 448 } | |
| 449 | |
| 450 #ifdef XML_NS | |
| 451 | |
| 452 static const struct normal_encoding ascii_encoding_ns = { | |
| 453 { VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 }, | |
| 454 { | |
| 455 #include "asciitab.h" | |
| 456 /* BT_NONXML == 0 */ | |
| 457 }, | |
| 458 STANDARD_VTABLE(sb_) | |
| 459 }; | |
| 460 | |
| 461 #endif | |
| 462 | |
| 463 static const struct normal_encoding ascii_encoding = { | |
| 464 { VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 }, | |
| 465 { | |
| 466 #define BT_COLON BT_NMSTRT | |
| 467 #include "asciitab.h" | |
| 468 #undef BT_COLON | |
| 469 /* BT_NONXML == 0 */ | |
| 470 }, | |
| 471 STANDARD_VTABLE(sb_) | |
| 472 }; | |
| 473 | |
| 474 static int unicode_byte_type(char hi, char lo) | |
| 475 { | |
| 476 switch ((unsigned char)hi) { | |
| 477 case 0xD8: case 0xD9: case 0xDA: case 0xDB: | |
| 478 return BT_LEAD4; | |
| 479 case 0xDC: case 0xDD: case 0xDE: case 0xDF: | |
| 480 return BT_TRAIL; | |
| 481 case 0xFF: | |
| 482 switch ((unsigned char)lo) { | |
| 483 case 0xFF: | |
| 484 case 0xFE: | |
| 485 return BT_NONXML; | |
| 486 } | |
| 487 break; | |
| 488 } | |
| 489 return BT_NONASCII; | |
| 490 } | |
| 491 | |
| 492 #define DEFINE_UTF16_TO_UTF8(E) \ | |
| 493 static \ | |
| 494 void E ## toUtf8(const ENCODING *enc, \ | |
| 495 const char **fromP, const char *fromLim, \ | |
| 496 char **toP, const char *toLim) \ | |
| 497 { \ | |
| 498 const char *from; \ | |
| 499 for (from = *fromP; from != fromLim; from += 2) { \ | |
| 500 int plane; \ | |
| 501 unsigned char lo2; \ | |
| 502 unsigned char lo = GET_LO(from); \ | |
| 503 unsigned char hi = GET_HI(from); \ | |
| 504 switch (hi) { \ | |
| 505 case 0: \ | |
| 506 if (lo < 0x80) { \ | |
| 507 if (*toP == toLim) { \ | |
| 508 *fromP = from; \ | |
| 509 return; \ | |
| 510 } \ | |
| 511 *(*toP)++ = lo; \ | |
| 512 break; \ | |
| 513 } \ | |
| 514 /* fall through */ \ | |
| 515 case 0x1: case 0x2: case 0x3: \ | |
| 516 case 0x4: case 0x5: case 0x6: case 0x7: \ | |
| 517 if (toLim - *toP < 2) { \ | |
| 518 *fromP = from; \ | |
| 519 return; \ | |
| 520 } \ | |
| 521 *(*toP)++ = ((lo >> 6) | (hi << 2) | UTF8_cval2); \ | |
| 522 *(*toP)++ = ((lo & 0x3f) | 0x80); \ | |
| 523 break; \ | |
| 524 default: \ | |
| 525 if (toLim - *toP < 3) { \ | |
| 526 *fromP = from; \ | |
| 527 return; \ | |
| 528 } \ | |
| 529 /* 16 bits divided 4, 6, 6 amongst 3 bytes */ \ | |
| 530 *(*toP)++ = ((hi >> 4) | UTF8_cval3); \ | |
| 531 *(*toP)++ = (((hi & 0xf) << 2) | (lo >> 6) | 0x80); \ | |
| 532 *(*toP)++ = ((lo & 0x3f) | 0x80); \ | |
| 533 break; \ | |
| 534 case 0xD8: case 0xD9: case 0xDA: case 0xDB: \ | |
| 535 if (toLim - *toP < 4) { \ | |
| 536 *fromP = from; \ | |
| 537 return; \ | |
| 538 } \ | |
| 539 plane = (((hi & 0x3) << 2) | ((lo >> 6) & 0x3)) + 1; \ | |
| 540 *(*toP)++ = ((plane >> 2) | UTF8_cval4); \ | |
| 541 *(*toP)++ = (((lo >> 2) & 0xF) | ((plane & 0x3) << 4) | 0x80); \ | |
| 542 from += 2; \ | |
| 543 lo2 = GET_LO(from); \ | |
| 544 *(*toP)++ = (((lo & 0x3) << 4) \ | |
| 545 | ((GET_HI(from) & 0x3) << 2) \ | |
| 546 | (lo2 >> 6) \ | |
| 547 | 0x80); \ | |
| 548 *(*toP)++ = ((lo2 & 0x3f) | 0x80); \ | |
| 549 break; \ | |
| 550 } \ | |
| 551 } \ | |
| 552 *fromP = from; \ | |
| 553 } | |
| 554 | |
| 555 #define DEFINE_UTF16_TO_UTF16(E) \ | |
| 556 static \ | |
| 557 void E ## toUtf16(const ENCODING *enc, \ | |
| 558 const char **fromP, const char *fromLim, \ | |
| 559 unsigned short **toP, const unsigned short *toLim) \ | |
| 560 { \ | |
| 561 /* Avoid copying first half only of surrogate */ \ | |
| 562 if (fromLim - *fromP > ((toLim - *toP) << 1) \ | |
| 563 && (GET_HI(fromLim - 2) & 0xF8) == 0xD8) \ | |
| 564 fromLim -= 2; \ | |
| 565 for (; *fromP != fromLim && *toP != toLim; *fromP += 2) \ | |
| 566 *(*toP)++ = (GET_HI(*fromP) << 8) | GET_LO(*fromP); \ | |
| 567 } | |
| 568 | |
| 569 #define SET2(ptr, ch) \ | |
| 570 (((ptr)[0] = ((ch) & 0xff)), ((ptr)[1] = ((ch) >> 8))) | |
| 571 #define GET_LO(ptr) ((unsigned char)(ptr)[0]) | |
| 572 #define GET_HI(ptr) ((unsigned char)(ptr)[1]) | |
| 573 | |
| 574 DEFINE_UTF16_TO_UTF8(little2_) | |
| 575 DEFINE_UTF16_TO_UTF16(little2_) | |
| 576 | |
| 577 #undef SET2 | |
| 578 #undef GET_LO | |
| 579 #undef GET_HI | |
| 580 | |
| 581 #define SET2(ptr, ch) \ | |
| 582 (((ptr)[0] = ((ch) >> 8)), ((ptr)[1] = ((ch) & 0xFF))) | |
| 583 #define GET_LO(ptr) ((unsigned char)(ptr)[1]) | |
| 584 #define GET_HI(ptr) ((unsigned char)(ptr)[0]) | |
| 585 | |
| 586 DEFINE_UTF16_TO_UTF8(big2_) | |
| 587 DEFINE_UTF16_TO_UTF16(big2_) | |
| 588 | |
| 589 #undef SET2 | |
| 590 #undef GET_LO | |
| 591 #undef GET_HI | |
| 592 | |
| 593 #define LITTLE2_BYTE_TYPE(enc, p) \ | |
| 594 ((p)[1] == 0 \ | |
| 595 ? ((struct normal_encoding *)(enc))->type[(unsigned char)*(p)] \ | |
| 596 : unicode_byte_type((p)[1], (p)[0])) | |
| 597 #define LITTLE2_BYTE_TO_ASCII(enc, p) ((p)[1] == 0 ? (p)[0] : -1) | |
| 598 #define LITTLE2_CHAR_MATCHES(enc, p, c) ((p)[1] == 0 && (p)[0] == c) | |
| 599 #define LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) \ | |
| 600 UCS2_GET_NAMING(namePages, (unsigned char)p[1], (unsigned char)p[0]) | |
| 601 #define LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) \ | |
| 602 UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[1], (unsigned char)p[0]) | |
| 603 | |
| 604 #ifdef XML_MIN_SIZE | |
| 605 | |
| 606 static | |
| 607 int little2_byteType(const ENCODING *enc, const char *p) | |
| 608 { | |
| 609 return LITTLE2_BYTE_TYPE(enc, p); | |
| 610 } | |
| 611 | |
| 612 static | |
| 613 int little2_byteToAscii(const ENCODING *enc, const char *p) | |
| 614 { | |
| 615 return LITTLE2_BYTE_TO_ASCII(enc, p); | |
| 616 } | |
| 617 | |
| 618 static | |
| 619 int little2_charMatches(const ENCODING *enc, const char *p, int c) | |
| 620 { | |
| 621 return LITTLE2_CHAR_MATCHES(enc, p, c); | |
| 622 } | |
| 623 | |
| 624 static | |
| 625 int little2_isNameMin(const ENCODING *enc, const char *p) | |
| 626 { | |
| 627 return LITTLE2_IS_NAME_CHAR_MINBPC(enc, p); | |
| 628 } | |
| 629 | |
| 630 static | |
| 631 int little2_isNmstrtMin(const ENCODING *enc, const char *p) | |
| 632 { | |
| 633 return LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p); | |
| 634 } | |
| 635 | |
| 636 #undef VTABLE | |
| 637 #define VTABLE VTABLE1, little2_toUtf8, little2_toUtf16 | |
| 638 | |
| 639 #else /* not XML_MIN_SIZE */ | |
| 640 | |
| 641 #undef PREFIX | |
| 642 #define PREFIX(ident) little2_ ## ident | |
| 643 #define MINBPC(enc) 2 | |
| 644 /* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ | |
| 645 #define BYTE_TYPE(enc, p) LITTLE2_BYTE_TYPE(enc, p) | |
|
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646 #define BYTE_TO_ASCII(enc, p) LITTLE2_BYTE_TO_ASCII(enc, p) |
| 25 | 647 #define CHAR_MATCHES(enc, p, c) LITTLE2_CHAR_MATCHES(enc, p, c) |
| 648 #define IS_NAME_CHAR(enc, p, n) 0 | |
| 649 #define IS_NAME_CHAR_MINBPC(enc, p) LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) | |
| 650 #define IS_NMSTRT_CHAR(enc, p, n) (0) | |
| 651 #define IS_NMSTRT_CHAR_MINBPC(enc, p) LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) | |
| 652 | |
| 653 #include "xmltok_impl_c.h" | |
| 654 | |
| 655 #undef MINBPC | |
| 656 #undef BYTE_TYPE | |
| 657 #undef BYTE_TO_ASCII | |
| 658 #undef CHAR_MATCHES | |
| 659 #undef IS_NAME_CHAR | |
| 660 #undef IS_NAME_CHAR_MINBPC | |
| 661 #undef IS_NMSTRT_CHAR | |
| 662 #undef IS_NMSTRT_CHAR_MINBPC | |
| 663 #undef IS_INVALID_CHAR | |
| 664 | |
| 665 #endif /* not XML_MIN_SIZE */ | |
| 666 | |
| 667 #ifdef XML_NS | |
| 668 | |
| 669 static const struct normal_encoding little2_encoding_ns = { | |
| 670 { VTABLE, 2, 0, | |
| 671 #if XML_BYTE_ORDER == 12 | |
| 672 1 | |
| 673 #else | |
| 674 0 | |
| 675 #endif | |
| 676 }, | |
| 677 { | |
| 678 #include "asciitab.h" | |
| 679 #include "latin1tab.h" | |
| 680 }, | |
| 681 STANDARD_VTABLE(little2_) | |
| 682 }; | |
| 683 | |
| 684 #endif | |
| 685 | |
| 686 static const struct normal_encoding little2_encoding = { | |
| 687 { VTABLE, 2, 0, | |
| 688 #if XML_BYTE_ORDER == 12 | |
| 689 1 | |
| 690 #else | |
| 691 0 | |
| 692 #endif | |
| 693 }, | |
| 694 { | |
| 695 #define BT_COLON BT_NMSTRT | |
| 696 #include "asciitab.h" | |
| 697 #undef BT_COLON | |
| 698 #include "latin1tab.h" | |
| 699 }, | |
| 700 STANDARD_VTABLE(little2_) | |
| 701 }; | |
| 702 | |
| 703 #if XML_BYTE_ORDER != 21 | |
| 704 | |
| 705 #ifdef XML_NS | |
| 706 | |
| 707 static const struct normal_encoding internal_little2_encoding_ns = { | |
| 708 { VTABLE, 2, 0, 1 }, | |
| 709 { | |
| 710 #include "iasciitab.h" | |
| 711 #include "latin1tab.h" | |
| 712 }, | |
| 713 STANDARD_VTABLE(little2_) | |
| 714 }; | |
| 715 | |
| 716 #endif | |
| 717 | |
| 718 static const struct normal_encoding internal_little2_encoding = { | |
| 719 { VTABLE, 2, 0, 1 }, | |
| 720 { | |
| 721 #define BT_COLON BT_NMSTRT | |
| 722 #include "iasciitab.h" | |
| 723 #undef BT_COLON | |
| 724 #include "latin1tab.h" | |
| 725 }, | |
| 726 STANDARD_VTABLE(little2_) | |
| 727 }; | |
| 728 | |
| 729 #endif | |
| 730 | |
| 731 | |
| 732 #define BIG2_BYTE_TYPE(enc, p) \ | |
| 733 ((p)[0] == 0 \ | |
| 734 ? ((struct normal_encoding *)(enc))->type[(unsigned char)(p)[1]] \ | |
| 735 : unicode_byte_type((p)[0], (p)[1])) | |
| 736 #define BIG2_BYTE_TO_ASCII(enc, p) ((p)[0] == 0 ? (p)[1] : -1) | |
| 737 #define BIG2_CHAR_MATCHES(enc, p, c) ((p)[0] == 0 && (p)[1] == c) | |
| 738 #define BIG2_IS_NAME_CHAR_MINBPC(enc, p) \ | |
| 739 UCS2_GET_NAMING(namePages, (unsigned char)p[0], (unsigned char)p[1]) | |
| 740 #define BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) \ | |
| 741 UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[0], (unsigned char)p[1]) | |
| 742 | |
| 743 #ifdef XML_MIN_SIZE | |
| 744 | |
| 745 static | |
| 746 int big2_byteType(const ENCODING *enc, const char *p) | |
| 747 { | |
| 748 return BIG2_BYTE_TYPE(enc, p); | |
| 749 } | |
| 750 | |
| 751 static | |
| 752 int big2_byteToAscii(const ENCODING *enc, const char *p) | |
| 753 { | |
| 754 return BIG2_BYTE_TO_ASCII(enc, p); | |
| 755 } | |
| 756 | |
| 757 static | |
| 758 int big2_charMatches(const ENCODING *enc, const char *p, int c) | |
| 759 { | |
| 760 return BIG2_CHAR_MATCHES(enc, p, c); | |
| 761 } | |
| 762 | |
| 763 static | |
| 764 int big2_isNameMin(const ENCODING *enc, const char *p) | |
| 765 { | |
| 766 return BIG2_IS_NAME_CHAR_MINBPC(enc, p); | |
| 767 } | |
| 768 | |
| 769 static | |
| 770 int big2_isNmstrtMin(const ENCODING *enc, const char *p) | |
| 771 { | |
| 772 return BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p); | |
| 773 } | |
| 774 | |
| 775 #undef VTABLE | |
| 776 #define VTABLE VTABLE1, big2_toUtf8, big2_toUtf16 | |
| 777 | |
| 778 #else /* not XML_MIN_SIZE */ | |
| 779 | |
| 780 #undef PREFIX | |
| 781 #define PREFIX(ident) big2_ ## ident | |
| 782 #define MINBPC(enc) 2 | |
| 783 /* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ | |
| 784 #define BYTE_TYPE(enc, p) BIG2_BYTE_TYPE(enc, p) | |
|
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785 #define BYTE_TO_ASCII(enc, p) BIG2_BYTE_TO_ASCII(enc, p) |
| 25 | 786 #define CHAR_MATCHES(enc, p, c) BIG2_CHAR_MATCHES(enc, p, c) |
| 787 #define IS_NAME_CHAR(enc, p, n) 0 | |
| 788 #define IS_NAME_CHAR_MINBPC(enc, p) BIG2_IS_NAME_CHAR_MINBPC(enc, p) | |
| 789 #define IS_NMSTRT_CHAR(enc, p, n) (0) | |
| 790 #define IS_NMSTRT_CHAR_MINBPC(enc, p) BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) | |
| 791 | |
| 792 #include "xmltok_impl_c.h" | |
| 793 | |
| 794 #undef MINBPC | |
| 795 #undef BYTE_TYPE | |
| 796 #undef BYTE_TO_ASCII | |
| 797 #undef CHAR_MATCHES | |
| 798 #undef IS_NAME_CHAR | |
| 799 #undef IS_NAME_CHAR_MINBPC | |
| 800 #undef IS_NMSTRT_CHAR | |
| 801 #undef IS_NMSTRT_CHAR_MINBPC | |
| 802 #undef IS_INVALID_CHAR | |
| 803 | |
| 804 #endif /* not XML_MIN_SIZE */ | |
| 805 | |
| 806 #ifdef XML_NS | |
| 807 | |
| 808 static const struct normal_encoding big2_encoding_ns = { | |
| 809 { VTABLE, 2, 0, | |
| 810 #if XML_BYTE_ORDER == 21 | |
| 811 1 | |
| 812 #else | |
| 813 0 | |
| 814 #endif | |
| 815 }, | |
| 816 { | |
| 817 #include "asciitab.h" | |
| 818 #include "latin1tab.h" | |
| 819 }, | |
| 820 STANDARD_VTABLE(big2_) | |
| 821 }; | |
| 822 | |
| 823 #endif | |
| 824 | |
| 825 static const struct normal_encoding big2_encoding = { | |
| 826 { VTABLE, 2, 0, | |
| 827 #if XML_BYTE_ORDER == 21 | |
| 828 1 | |
| 829 #else | |
| 830 0 | |
| 831 #endif | |
| 832 }, | |
| 833 { | |
| 834 #define BT_COLON BT_NMSTRT | |
| 835 #include "asciitab.h" | |
| 836 #undef BT_COLON | |
| 837 #include "latin1tab.h" | |
| 838 }, | |
| 839 STANDARD_VTABLE(big2_) | |
| 840 }; | |
| 841 | |
| 842 #if XML_BYTE_ORDER != 12 | |
| 843 | |
| 844 #ifdef XML_NS | |
| 845 | |
| 846 static const struct normal_encoding internal_big2_encoding_ns = { | |
| 847 { VTABLE, 2, 0, 1 }, | |
| 848 { | |
| 849 #include "iasciitab.h" | |
| 850 #include "latin1tab.h" | |
| 851 }, | |
| 852 STANDARD_VTABLE(big2_) | |
| 853 }; | |
| 854 | |
| 855 #endif | |
| 856 | |
| 857 static const struct normal_encoding internal_big2_encoding = { | |
| 858 { VTABLE, 2, 0, 1 }, | |
| 859 { | |
| 860 #define BT_COLON BT_NMSTRT | |
| 861 #include "iasciitab.h" | |
| 862 #undef BT_COLON | |
| 863 #include "latin1tab.h" | |
| 864 }, | |
| 865 STANDARD_VTABLE(big2_) | |
| 866 }; | |
| 867 | |
| 868 #endif | |
| 869 | |
| 870 #undef PREFIX | |
| 871 | |
| 872 static | |
| 873 int streqci(const char *s1, const char *s2) | |
| 874 { | |
| 875 for (;;) { | |
| 876 char c1 = *s1++; | |
| 877 char c2 = *s2++; | |
| 878 if ('a' <= c1 && c1 <= 'z') | |
| 879 c1 += 'A' - 'a'; | |
| 880 if ('a' <= c2 && c2 <= 'z') | |
| 881 c2 += 'A' - 'a'; | |
| 882 if (c1 != c2) | |
| 883 return 0; | |
| 884 if (!c1) | |
| 885 break; | |
| 886 } | |
| 887 return 1; | |
| 888 } | |
| 889 | |
| 890 static | |
| 891 void initUpdatePosition(const ENCODING *enc, const char *ptr, | |
| 892 const char *end, POSITION *pos) | |
| 893 { | |
| 894 normal_updatePosition(&utf8_encoding.enc, ptr, end, pos); | |
| 895 } | |
| 896 | |
| 897 static | |
| 898 int toAscii(const ENCODING *enc, const char *ptr, const char *end) | |
| 899 { | |
| 900 char buf[1]; | |
| 901 char *p = buf; | |
| 902 XmlUtf8Convert(enc, &ptr, end, &p, p + 1); | |
| 903 if (p == buf) | |
| 904 return -1; | |
| 905 else | |
| 906 return buf[0]; | |
| 907 } | |
| 908 | |
| 909 static | |
| 910 int isSpace(int c) | |
| 911 { | |
| 912 switch (c) { | |
| 913 case 0x20: | |
| 914 case 0xD: | |
| 915 case 0xA: | |
| 916 case 0x9: | |
| 917 return 1; | |
| 918 } | |
| 919 return 0; | |
| 920 } | |
| 921 | |
| 922 /* Return 1 if there's just optional white space | |
| 923 or there's an S followed by name=val. */ | |
| 924 static | |
| 925 int parsePseudoAttribute(const ENCODING *enc, | |
| 926 const char *ptr, | |
| 927 const char *end, | |
| 928 const char **namePtr, | |
| 929 const char **valPtr, | |
| 930 const char **nextTokPtr) | |
| 931 { | |
| 932 int c; | |
| 933 char open; | |
| 934 if (ptr == end) { | |
| 935 *namePtr = 0; | |
| 936 return 1; | |
| 937 } | |
| 938 if (!isSpace(toAscii(enc, ptr, end))) { | |
| 939 *nextTokPtr = ptr; | |
| 940 return 0; | |
| 941 } | |
| 942 do { | |
| 943 ptr += enc->minBytesPerChar; | |
| 944 } while (isSpace(toAscii(enc, ptr, end))); | |
| 945 if (ptr == end) { | |
| 946 *namePtr = 0; | |
| 947 return 1; | |
| 948 } | |
| 949 *namePtr = ptr; | |
| 950 for (;;) { | |
| 951 c = toAscii(enc, ptr, end); | |
| 952 if (c == -1) { | |
| 953 *nextTokPtr = ptr; | |
| 954 return 0; | |
| 955 } | |
| 956 if (c == '=') | |
| 957 break; | |
| 958 if (isSpace(c)) { | |
| 959 do { | |
| 960 ptr += enc->minBytesPerChar; | |
| 961 } while (isSpace(c = toAscii(enc, ptr, end))); | |
| 962 if (c != '=') { | |
| 963 *nextTokPtr = ptr; | |
| 964 return 0; | |
| 965 } | |
| 966 break; | |
| 967 } | |
| 968 ptr += enc->minBytesPerChar; | |
| 969 } | |
| 970 if (ptr == *namePtr) { | |
| 971 *nextTokPtr = ptr; | |
| 972 return 0; | |
| 973 } | |
| 974 ptr += enc->minBytesPerChar; | |
| 975 c = toAscii(enc, ptr, end); | |
| 976 while (isSpace(c)) { | |
| 977 ptr += enc->minBytesPerChar; | |
| 978 c = toAscii(enc, ptr, end); | |
| 979 } | |
| 980 if (c != '"' && c != '\'') { | |
| 981 *nextTokPtr = ptr; | |
| 982 return 0; | |
| 983 } | |
| 984 open = c; | |
| 985 ptr += enc->minBytesPerChar; | |
| 986 *valPtr = ptr; | |
| 987 for (;; ptr += enc->minBytesPerChar) { | |
| 988 c = toAscii(enc, ptr, end); | |
| 989 if (c == open) | |
| 990 break; | |
| 991 if (!('a' <= c && c <= 'z') | |
| 992 && !('A' <= c && c <= 'Z') | |
| 993 && !('0' <= c && c <= '9') | |
| 994 && c != '.' | |
| 995 && c != '-' | |
| 996 && c != '_') { | |
| 997 *nextTokPtr = ptr; | |
| 998 return 0; | |
| 999 } | |
| 1000 } | |
| 1001 *nextTokPtr = ptr + enc->minBytesPerChar; | |
| 1002 return 1; | |
| 1003 } | |
| 1004 | |
| 1005 static | |
| 1006 int doParseXmlDecl(const ENCODING *(*encodingFinder)(const ENCODING *, | |
| 1007 const char *, | |
| 1008 const char *), | |
| 1009 int isGeneralTextEntity, | |
| 1010 const ENCODING *enc, | |
| 1011 const char *ptr, | |
| 1012 const char *end, | |
| 1013 const char **badPtr, | |
| 1014 const char **versionPtr, | |
| 1015 const char **encodingName, | |
| 1016 const ENCODING **encoding, | |
| 1017 int *standalone) | |
| 1018 { | |
| 1019 const char *val = 0; | |
| 1020 const char *name = 0; | |
| 1021 ptr += 5 * enc->minBytesPerChar; | |
| 1022 end -= 2 * enc->minBytesPerChar; | |
| 1023 if (!parsePseudoAttribute(enc, ptr, end, &name, &val, &ptr) || !name) { | |
| 1024 *badPtr = ptr; | |
| 1025 return 0; | |
| 1026 } | |
| 1027 if (!XmlNameMatchesAscii(enc, name, "version")) { | |
| 1028 if (!isGeneralTextEntity) { | |
| 1029 *badPtr = name; | |
| 1030 return 0; | |
| 1031 } | |
| 1032 } | |
| 1033 else { | |
| 1034 if (versionPtr) | |
| 1035 *versionPtr = val; | |
| 1036 if (!parsePseudoAttribute(enc, ptr, end, &name, &val, &ptr)) { | |
| 1037 *badPtr = ptr; | |
| 1038 return 0; | |
| 1039 } | |
| 1040 if (!name) { | |
| 1041 if (isGeneralTextEntity) { | |
| 1042 /* a TextDecl must have an EncodingDecl */ | |
| 1043 *badPtr = ptr; | |
| 1044 return 0; | |
| 1045 } | |
| 1046 return 1; | |
| 1047 } | |
| 1048 } | |
| 1049 if (XmlNameMatchesAscii(enc, name, "encoding")) { | |
| 1050 int c = toAscii(enc, val, end); | |
| 1051 if (!('a' <= c && c <= 'z') && !('A' <= c && c <= 'Z')) { | |
| 1052 *badPtr = val; | |
| 1053 return 0; | |
| 1054 } | |
| 1055 if (encodingName) | |
| 1056 *encodingName = val; | |
| 1057 if (encoding) | |
| 1058 *encoding = encodingFinder(enc, val, ptr - enc->minBytesPerChar); | |
| 1059 if (!parsePseudoAttribute(enc, ptr, end, &name, &val, &ptr)) { | |
| 1060 *badPtr = ptr; | |
| 1061 return 0; | |
| 1062 } | |
| 1063 if (!name) | |
| 1064 return 1; | |
| 1065 } | |
| 1066 if (!XmlNameMatchesAscii(enc, name, "standalone") || isGeneralTextEntity) { | |
| 1067 *badPtr = name; | |
| 1068 return 0; | |
| 1069 } | |
| 1070 if (XmlNameMatchesAscii(enc, val, "yes")) { | |
| 1071 if (standalone) | |
| 1072 *standalone = 1; | |
| 1073 } | |
| 1074 else if (XmlNameMatchesAscii(enc, val, "no")) { | |
| 1075 if (standalone) | |
| 1076 *standalone = 0; | |
| 1077 } | |
| 1078 else { | |
| 1079 *badPtr = val; | |
| 1080 return 0; | |
| 1081 } | |
| 1082 while (isSpace(toAscii(enc, ptr, end))) | |
| 1083 ptr += enc->minBytesPerChar; | |
| 1084 if (ptr != end) { | |
| 1085 *badPtr = ptr; | |
| 1086 return 0; | |
| 1087 } | |
| 1088 return 1; | |
| 1089 } | |
| 1090 | |
| 1091 static | |
| 1092 int checkCharRefNumber(int result) | |
| 1093 { | |
| 1094 switch (result >> 8) { | |
| 1095 case 0xD8: case 0xD9: case 0xDA: case 0xDB: | |
| 1096 case 0xDC: case 0xDD: case 0xDE: case 0xDF: | |
| 1097 return -1; | |
| 1098 case 0: | |
| 1099 if (latin1_encoding.type[result] == BT_NONXML) | |
| 1100 return -1; | |
| 1101 break; | |
| 1102 case 0xFF: | |
| 1103 if (result == 0xFFFE || result == 0xFFFF) | |
| 1104 return -1; | |
| 1105 break; | |
| 1106 } | |
| 1107 return result; | |
| 1108 } | |
| 1109 | |
| 1110 int XmlUtf8Encode(int c, char *buf) | |
| 1111 { | |
| 1112 enum { | |
| 1113 /* minN is minimum legal resulting value for N byte sequence */ | |
| 1114 min2 = 0x80, | |
| 1115 min3 = 0x800, | |
| 1116 min4 = 0x10000 | |
| 1117 }; | |
| 1118 | |
| 1119 if (c < 0) | |
| 1120 return 0; | |
| 1121 if (c < min2) { | |
| 1122 buf[0] = (c | UTF8_cval1); | |
| 1123 return 1; | |
| 1124 } | |
| 1125 if (c < min3) { | |
| 1126 buf[0] = ((c >> 6) | UTF8_cval2); | |
| 1127 buf[1] = ((c & 0x3f) | 0x80); | |
| 1128 return 2; | |
| 1129 } | |
| 1130 if (c < min4) { | |
| 1131 buf[0] = ((c >> 12) | UTF8_cval3); | |
| 1132 buf[1] = (((c >> 6) & 0x3f) | 0x80); | |
| 1133 buf[2] = ((c & 0x3f) | 0x80); | |
| 1134 return 3; | |
| 1135 } | |
| 1136 if (c < 0x110000) { | |
| 1137 buf[0] = ((c >> 18) | UTF8_cval4); | |
| 1138 buf[1] = (((c >> 12) & 0x3f) | 0x80); | |
| 1139 buf[2] = (((c >> 6) & 0x3f) | 0x80); | |
| 1140 buf[3] = ((c & 0x3f) | 0x80); | |
| 1141 return 4; | |
| 1142 } | |
| 1143 return 0; | |
| 1144 } | |
| 1145 | |
| 1146 int XmlUtf16Encode(int charNum, unsigned short *buf) | |
| 1147 { | |
| 1148 if (charNum < 0) | |
| 1149 return 0; | |
| 1150 if (charNum < 0x10000) { | |
| 1151 buf[0] = charNum; | |
| 1152 return 1; | |
| 1153 } | |
| 1154 if (charNum < 0x110000) { | |
| 1155 charNum -= 0x10000; | |
| 1156 buf[0] = (charNum >> 10) + 0xD800; | |
| 1157 buf[1] = (charNum & 0x3FF) + 0xDC00; | |
| 1158 return 2; | |
| 1159 } | |
| 1160 return 0; | |
| 1161 } | |
| 1162 | |
| 1163 struct unknown_encoding { | |
| 1164 struct normal_encoding normal; | |
| 1165 int (*convert)(void *userData, const char *p); | |
| 1166 void *userData; | |
| 1167 unsigned short utf16[256]; | |
| 1168 char utf8[256][4]; | |
| 1169 }; | |
| 1170 | |
| 1171 int XmlSizeOfUnknownEncoding() | |
| 1172 { | |
| 1173 return sizeof(struct unknown_encoding); | |
| 1174 } | |
| 1175 | |
| 1176 static | |
| 1177 int unknown_isName(const ENCODING *enc, const char *p) | |
| 1178 { | |
| 1179 int c = ((const struct unknown_encoding *)enc) | |
| 1180 ->convert(((const struct unknown_encoding *)enc)->userData, p); | |
| 1181 if (c & ~0xFFFF) | |
| 1182 return 0; | |
| 1183 return UCS2_GET_NAMING(namePages, c >> 8, c & 0xFF); | |
| 1184 } | |
| 1185 | |
| 1186 static | |
| 1187 int unknown_isNmstrt(const ENCODING *enc, const char *p) | |
| 1188 { | |
| 1189 int c = ((const struct unknown_encoding *)enc) | |
| 1190 ->convert(((const struct unknown_encoding *)enc)->userData, p); | |
| 1191 if (c & ~0xFFFF) | |
| 1192 return 0; | |
| 1193 return UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xFF); | |
| 1194 } | |
| 1195 | |
| 1196 static | |
| 1197 int unknown_isInvalid(const ENCODING *enc, const char *p) | |
| 1198 { | |
| 1199 int c = ((const struct unknown_encoding *)enc) | |
| 1200 ->convert(((const struct unknown_encoding *)enc)->userData, p); | |
| 1201 return (c & ~0xFFFF) || checkCharRefNumber(c) < 0; | |
| 1202 } | |
| 1203 | |
| 1204 static | |
| 1205 void unknown_toUtf8(const ENCODING *enc, | |
| 1206 const char **fromP, const char *fromLim, | |
| 1207 char **toP, const char *toLim) | |
| 1208 { | |
| 1209 char buf[XML_UTF8_ENCODE_MAX]; | |
| 1210 for (;;) { | |
| 1211 const char *utf8; | |
| 1212 int n; | |
| 1213 if (*fromP == fromLim) | |
| 1214 break; | |
| 1215 utf8 = ((const struct unknown_encoding *)enc)->utf8[(unsigned char)**fromP]; | |
| 1216 n = *utf8++; | |
| 1217 if (n == 0) { | |
| 1218 int c = ((const struct unknown_encoding *)enc) | |
| 1219 ->convert(((const struct unknown_encoding *)enc)->userData, *fromP); | |
| 1220 n = XmlUtf8Encode(c, buf); | |
| 1221 if (n > toLim - *toP) | |
| 1222 break; | |
| 1223 utf8 = buf; | |
| 1224 *fromP += ((const struct normal_encoding *)enc)->type[(unsigned char)**fromP] | |
| 1225 - (BT_LEAD2 - 2); | |
| 1226 } | |
| 1227 else { | |
| 1228 if (n > toLim - *toP) | |
| 1229 break; | |
| 1230 (*fromP)++; | |
| 1231 } | |
| 1232 do { | |
| 1233 *(*toP)++ = *utf8++; | |
| 1234 } while (--n != 0); | |
| 1235 } | |
| 1236 } | |
| 1237 | |
| 1238 static | |
| 1239 void unknown_toUtf16(const ENCODING *enc, | |
| 1240 const char **fromP, const char *fromLim, | |
| 1241 unsigned short **toP, const unsigned short *toLim) | |
| 1242 { | |
| 1243 while (*fromP != fromLim && *toP != toLim) { | |
| 1244 unsigned short c | |
| 1245 = ((const struct unknown_encoding *)enc)->utf16[(unsigned char)**fromP]; | |
| 1246 if (c == 0) { | |
| 1247 c = (unsigned short)((const struct unknown_encoding *)enc) | |
| 1248 ->convert(((const struct unknown_encoding *)enc)->userData, *fromP); | |
| 1249 *fromP += ((const struct normal_encoding *)enc)->type[(unsigned char)**fromP] | |
| 1250 - (BT_LEAD2 - 2); | |
| 1251 } | |
| 1252 else | |
| 1253 (*fromP)++; | |
| 1254 *(*toP)++ = c; | |
| 1255 } | |
| 1256 } | |
| 1257 | |
| 1258 ENCODING * | |
| 1259 XmlInitUnknownEncoding(void *mem, | |
| 1260 int *table, | |
| 1261 int (*convert)(void *userData, const char *p), | |
| 1262 void *userData) | |
| 1263 { | |
| 1264 int i; | |
| 1265 struct unknown_encoding *e = mem; | |
|
883
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Remove some more libjabber warnings
Mikael Berthe <mikael@lilotux.net>
parents:
414
diff
changeset
|
1266 for (i = 0; i < (int)sizeof(struct normal_encoding); i++) |
| 25 | 1267 ((char *)mem)[i] = ((char *)&latin1_encoding)[i]; |
| 1268 for (i = 0; i < 128; i++) | |
| 1269 if (latin1_encoding.type[i] != BT_OTHER | |
| 1270 && latin1_encoding.type[i] != BT_NONXML | |
| 1271 && table[i] != i) | |
| 1272 return 0; | |
| 1273 for (i = 0; i < 256; i++) { | |
| 1274 int c = table[i]; | |
| 1275 if (c == -1) { | |
| 1276 e->normal.type[i] = BT_MALFORM; | |
| 1277 /* This shouldn't really get used. */ | |
| 1278 e->utf16[i] = 0xFFFF; | |
| 1279 e->utf8[i][0] = 1; | |
| 1280 e->utf8[i][1] = 0; | |
| 1281 } | |
| 1282 else if (c < 0) { | |
| 1283 if (c < -4) | |
| 1284 return 0; | |
| 1285 e->normal.type[i] = BT_LEAD2 - (c + 2); | |
| 1286 e->utf8[i][0] = 0; | |
| 1287 e->utf16[i] = 0; | |
| 1288 } | |
| 1289 else if (c < 0x80) { | |
| 1290 if (latin1_encoding.type[c] != BT_OTHER | |
| 1291 && latin1_encoding.type[c] != BT_NONXML | |
| 1292 && c != i) | |
| 1293 return 0; | |
| 1294 e->normal.type[i] = latin1_encoding.type[c]; | |
| 1295 e->utf8[i][0] = 1; | |
| 1296 e->utf8[i][1] = (char)c; | |
| 1297 e->utf16[i] = c == 0 ? 0xFFFF : c; | |
| 1298 } | |
| 1299 else if (checkCharRefNumber(c) < 0) { | |
| 1300 e->normal.type[i] = BT_NONXML; | |
| 1301 /* This shouldn't really get used. */ | |
| 1302 e->utf16[i] = 0xFFFF; | |
| 1303 e->utf8[i][0] = 1; | |
| 1304 e->utf8[i][1] = 0; | |
| 1305 } | |
| 1306 else { | |
| 1307 if (c > 0xFFFF) | |
| 1308 return 0; | |
| 1309 if (UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xff)) | |
| 1310 e->normal.type[i] = BT_NMSTRT; | |
| 1311 else if (UCS2_GET_NAMING(namePages, c >> 8, c & 0xff)) | |
| 1312 e->normal.type[i] = BT_NAME; | |
| 1313 else | |
| 1314 e->normal.type[i] = BT_OTHER; | |
| 1315 e->utf8[i][0] = (char)XmlUtf8Encode(c, e->utf8[i] + 1); | |
| 1316 e->utf16[i] = c; | |
| 1317 } | |
| 1318 } | |
| 1319 e->userData = userData; | |
| 1320 e->convert = convert; | |
| 1321 if (convert) { | |
| 1322 e->normal.isName2 = unknown_isName; | |
| 1323 e->normal.isName3 = unknown_isName; | |
| 1324 e->normal.isName4 = unknown_isName; | |
| 1325 e->normal.isNmstrt2 = unknown_isNmstrt; | |
| 1326 e->normal.isNmstrt3 = unknown_isNmstrt; | |
| 1327 e->normal.isNmstrt4 = unknown_isNmstrt; | |
| 1328 e->normal.isInvalid2 = unknown_isInvalid; | |
| 1329 e->normal.isInvalid3 = unknown_isInvalid; | |
| 1330 e->normal.isInvalid4 = unknown_isInvalid; | |
| 1331 } | |
| 1332 e->normal.enc.utf8Convert = unknown_toUtf8; | |
| 1333 e->normal.enc.utf16Convert = unknown_toUtf16; | |
| 1334 return &(e->normal.enc); | |
| 1335 } | |
| 1336 | |
| 1337 /* If this enumeration is changed, getEncodingIndex and encodings | |
| 1338 must also be changed. */ | |
| 1339 enum { | |
| 1340 UNKNOWN_ENC = -1, | |
| 1341 ISO_8859_1_ENC = 0, | |
| 1342 US_ASCII_ENC, | |
| 1343 UTF_8_ENC, | |
| 1344 UTF_16_ENC, | |
| 1345 UTF_16BE_ENC, | |
| 1346 UTF_16LE_ENC, | |
| 1347 /* must match encodingNames up to here */ | |
| 1348 NO_ENC | |
| 1349 }; | |
| 1350 | |
| 1351 static | |
| 1352 int getEncodingIndex(const char *name) | |
| 1353 { | |
| 1354 static const char *encodingNames[] = { | |
| 1355 "ISO-8859-1", | |
| 1356 "US-ASCII", | |
| 1357 "UTF-8", | |
| 1358 "UTF-16", | |
| 1359 "UTF-16BE" | |
| 1360 "UTF-16LE", | |
| 1361 }; | |
| 1362 int i; | |
| 1363 if (name == 0) | |
| 1364 return NO_ENC; | |
|
883
0aa9015f06df
Remove some more libjabber warnings
Mikael Berthe <mikael@lilotux.net>
parents:
414
diff
changeset
|
1365 for (i = 0; i < (int)(sizeof(encodingNames)/sizeof(encodingNames[0])); i++) |
| 25 | 1366 if (streqci(name, encodingNames[i])) |
| 1367 return i; | |
| 1368 return UNKNOWN_ENC; | |
| 1369 } | |
| 1370 | |
| 1371 /* For binary compatibility, we store the index of the encoding specified | |
| 1372 at initialization in the isUtf16 member. */ | |
| 1373 | |
| 1374 #define INIT_ENC_INDEX(enc) ((enc)->initEnc.isUtf16) | |
| 1375 | |
| 1376 /* This is what detects the encoding. | |
| 1377 encodingTable maps from encoding indices to encodings; | |
| 1378 INIT_ENC_INDEX(enc) is the index of the external (protocol) specified encoding; | |
| 1379 state is XML_CONTENT_STATE if we're parsing an external text entity, | |
| 1380 and XML_PROLOG_STATE otherwise. | |
| 1381 */ | |
| 1382 | |
| 1383 | |
| 1384 static | |
| 1385 int initScan(const ENCODING **encodingTable, | |
| 1386 const INIT_ENCODING *enc, | |
| 1387 int state, | |
| 1388 const char *ptr, | |
| 1389 const char *end, | |
| 1390 const char **nextTokPtr) | |
| 1391 { | |
| 1392 const ENCODING **encPtr; | |
| 1393 | |
| 1394 if (ptr == end) | |
| 1395 return XML_TOK_NONE; | |
| 1396 encPtr = enc->encPtr; | |
| 1397 if (ptr + 1 == end) { | |
| 1398 /* only a single byte available for auto-detection */ | |
| 1399 /* a well-formed document entity must have more than one byte */ | |
| 1400 if (state != XML_CONTENT_STATE) | |
| 1401 return XML_TOK_PARTIAL; | |
| 1402 /* so we're parsing an external text entity... */ | |
| 1403 /* if UTF-16 was externally specified, then we need at least 2 bytes */ | |
| 1404 switch (INIT_ENC_INDEX(enc)) { | |
| 1405 case UTF_16_ENC: | |
| 1406 case UTF_16LE_ENC: | |
| 1407 case UTF_16BE_ENC: | |
| 1408 return XML_TOK_PARTIAL; | |
| 1409 } | |
| 1410 switch ((unsigned char)*ptr) { | |
| 1411 case 0xFE: | |
| 1412 case 0xFF: | |
| 1413 case 0xEF: /* possibly first byte of UTF-8 BOM */ | |
| 1414 if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC | |
| 1415 && state == XML_CONTENT_STATE) | |
| 1416 break; | |
| 1417 /* fall through */ | |
| 1418 case 0x00: | |
| 1419 case 0x3C: | |
| 1420 return XML_TOK_PARTIAL; | |
| 1421 } | |
| 1422 } | |
| 1423 else { | |
| 1424 switch (((unsigned char)ptr[0] << 8) | (unsigned char)ptr[1]) { | |
| 1425 case 0xFEFF: | |
| 1426 if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC | |
| 1427 && state == XML_CONTENT_STATE) | |
| 1428 break; | |
| 1429 *nextTokPtr = ptr + 2; | |
| 1430 *encPtr = encodingTable[UTF_16BE_ENC]; | |
| 1431 return XML_TOK_BOM; | |
| 1432 /* 00 3C is handled in the default case */ | |
| 1433 case 0x3C00: | |
| 1434 if ((INIT_ENC_INDEX(enc) == UTF_16BE_ENC | |
| 1435 || INIT_ENC_INDEX(enc) == UTF_16_ENC) | |
| 1436 && state == XML_CONTENT_STATE) | |
| 1437 break; | |
| 1438 *encPtr = encodingTable[UTF_16LE_ENC]; | |
| 1439 return XmlTok(*encPtr, state, ptr, end, nextTokPtr); | |
| 1440 case 0xFFFE: | |
| 1441 if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC | |
| 1442 && state == XML_CONTENT_STATE) | |
| 1443 break; | |
| 1444 *nextTokPtr = ptr + 2; | |
| 1445 *encPtr = encodingTable[UTF_16LE_ENC]; | |
| 1446 return XML_TOK_BOM; | |
| 1447 case 0xEFBB: | |
| 1448 /* Maybe a UTF-8 BOM (EF BB BF) */ | |
| 1449 /* If there's an explicitly specified (external) encoding | |
| 1450 of ISO-8859-1 or some flavour of UTF-16 | |
| 1451 and this is an external text entity, | |
| 1452 don't look for the BOM, | |
| 1453 because it might be a legal data. */ | |
| 1454 if (state == XML_CONTENT_STATE) { | |
| 1455 int e = INIT_ENC_INDEX(enc); | |
| 1456 if (e == ISO_8859_1_ENC || e == UTF_16BE_ENC || e == UTF_16LE_ENC || e == UTF_16_ENC) | |
| 1457 break; | |
| 1458 } | |
| 1459 if (ptr + 2 == end) | |
| 1460 return XML_TOK_PARTIAL; | |
| 1461 if ((unsigned char)ptr[2] == 0xBF) { | |
| 1462 *encPtr = encodingTable[UTF_8_ENC]; | |
| 1463 return XML_TOK_BOM; | |
| 1464 } | |
| 1465 break; | |
| 1466 default: | |
| 1467 if (ptr[0] == '\0') { | |
| 1468 /* 0 isn't a legal data character. Furthermore a document entity can only | |
| 1469 start with ASCII characters. So the only way this can fail to be big-endian | |
| 1470 UTF-16 if it it's an external parsed general entity that's labelled as | |
| 1471 UTF-16LE. */ | |
| 1472 if (state == XML_CONTENT_STATE && INIT_ENC_INDEX(enc) == UTF_16LE_ENC) | |
| 1473 break; | |
| 1474 *encPtr = encodingTable[UTF_16BE_ENC]; | |
| 1475 return XmlTok(*encPtr, state, ptr, end, nextTokPtr); | |
| 1476 } | |
| 1477 else if (ptr[1] == '\0') { | |
| 1478 /* We could recover here in the case: | |
| 1479 - parsing an external entity | |
| 1480 - second byte is 0 | |
| 1481 - no externally specified encoding | |
| 1482 - no encoding declaration | |
| 1483 by assuming UTF-16LE. But we don't, because this would mean when | |
| 1484 presented just with a single byte, we couldn't reliably determine | |
| 1485 whether we needed further bytes. */ | |
| 1486 if (state == XML_CONTENT_STATE) | |
| 1487 break; | |
| 1488 *encPtr = encodingTable[UTF_16LE_ENC]; | |
| 1489 return XmlTok(*encPtr, state, ptr, end, nextTokPtr); | |
| 1490 } | |
| 1491 break; | |
| 1492 } | |
| 1493 } | |
| 237 | 1494 *encPtr = encodingTable[(int)INIT_ENC_INDEX(enc)]; |
| 25 | 1495 return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
| 1496 } | |
| 1497 | |
| 1498 | |
| 1499 #define NS(x) x | |
| 1500 #define ns(x) x | |
| 1501 #include "xmltok_ns_c.h" | |
| 1502 #undef NS | |
| 1503 #undef ns | |
| 1504 | |
| 1505 #ifdef XML_NS | |
| 1506 | |
| 1507 #define NS(x) x ## NS | |
| 1508 #define ns(x) x ## _ns | |
| 1509 | |
| 1510 #include "xmltok_ns_c.h" | |
| 1511 | |
| 1512 #undef NS | |
| 1513 #undef ns | |
| 1514 | |
| 1515 ENCODING * | |
| 1516 XmlInitUnknownEncodingNS(void *mem, | |
| 1517 int *table, | |
| 1518 int (*convert)(void *userData, const char *p), | |
| 1519 void *userData) | |
| 1520 { | |
| 1521 ENCODING *enc = XmlInitUnknownEncoding(mem, table, convert, userData); | |
| 1522 if (enc) | |
| 1523 ((struct normal_encoding *)enc)->type[':'] = BT_COLON; | |
| 1524 return enc; | |
| 1525 } | |
| 1526 | |
| 1527 #endif /* XML_NS */ |