Annotation of embedaddon/expat/lib/xmltok.c, revision 1.1
1.1 ! misho 1: /* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
! 2: See the file COPYING for copying permission.
! 3: */
! 4:
! 5: #include <stddef.h>
! 6:
! 7: #ifdef COMPILED_FROM_DSP
! 8: #include "winconfig.h"
! 9: #elif defined(MACOS_CLASSIC)
! 10: #include "macconfig.h"
! 11: #elif defined(__amigaos4__)
! 12: #include "amigaconfig.h"
! 13: #elif defined(__WATCOMC__)
! 14: #include "watcomconfig.h"
! 15: #else
! 16: #ifdef HAVE_EXPAT_CONFIG_H
! 17: #include <expat_config.h>
! 18: #endif
! 19: #endif /* ndef COMPILED_FROM_DSP */
! 20:
! 21: #include "expat_external.h"
! 22: #include "internal.h"
! 23: #include "xmltok.h"
! 24: #include "nametab.h"
! 25:
! 26: #ifdef XML_DTD
! 27: #define IGNORE_SECTION_TOK_VTABLE , PREFIX(ignoreSectionTok)
! 28: #else
! 29: #define IGNORE_SECTION_TOK_VTABLE /* as nothing */
! 30: #endif
! 31:
! 32: #define VTABLE1 \
! 33: { PREFIX(prologTok), PREFIX(contentTok), \
! 34: PREFIX(cdataSectionTok) IGNORE_SECTION_TOK_VTABLE }, \
! 35: { PREFIX(attributeValueTok), PREFIX(entityValueTok) }, \
! 36: PREFIX(sameName), \
! 37: PREFIX(nameMatchesAscii), \
! 38: PREFIX(nameLength), \
! 39: PREFIX(skipS), \
! 40: PREFIX(getAtts), \
! 41: PREFIX(charRefNumber), \
! 42: PREFIX(predefinedEntityName), \
! 43: PREFIX(updatePosition), \
! 44: PREFIX(isPublicId)
! 45:
! 46: #define VTABLE VTABLE1, PREFIX(toUtf8), PREFIX(toUtf16)
! 47:
! 48: #define UCS2_GET_NAMING(pages, hi, lo) \
! 49: (namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1 << ((lo) & 0x1F)))
! 50:
! 51: /* A 2 byte UTF-8 representation splits the characters 11 bits between
! 52: the bottom 5 and 6 bits of the bytes. We need 8 bits to index into
! 53: pages, 3 bits to add to that index and 5 bits to generate the mask.
! 54: */
! 55: #define UTF8_GET_NAMING2(pages, byte) \
! 56: (namingBitmap[((pages)[(((byte)[0]) >> 2) & 7] << 3) \
! 57: + ((((byte)[0]) & 3) << 1) \
! 58: + ((((byte)[1]) >> 5) & 1)] \
! 59: & (1 << (((byte)[1]) & 0x1F)))
! 60:
! 61: /* A 3 byte UTF-8 representation splits the characters 16 bits between
! 62: the bottom 4, 6 and 6 bits of the bytes. We need 8 bits to index
! 63: into pages, 3 bits to add to that index and 5 bits to generate the
! 64: mask.
! 65: */
! 66: #define UTF8_GET_NAMING3(pages, byte) \
! 67: (namingBitmap[((pages)[((((byte)[0]) & 0xF) << 4) \
! 68: + ((((byte)[1]) >> 2) & 0xF)] \
! 69: << 3) \
! 70: + ((((byte)[1]) & 3) << 1) \
! 71: + ((((byte)[2]) >> 5) & 1)] \
! 72: & (1 << (((byte)[2]) & 0x1F)))
! 73:
! 74: #define UTF8_GET_NAMING(pages, p, n) \
! 75: ((n) == 2 \
! 76: ? UTF8_GET_NAMING2(pages, (const unsigned char *)(p)) \
! 77: : ((n) == 3 \
! 78: ? UTF8_GET_NAMING3(pages, (const unsigned char *)(p)) \
! 79: : 0))
! 80:
! 81: /* Detection of invalid UTF-8 sequences is based on Table 3.1B
! 82: of Unicode 3.2: http://www.unicode.org/unicode/reports/tr28/
! 83: with the additional restriction of not allowing the Unicode
! 84: code points 0xFFFF and 0xFFFE (sequences EF,BF,BF and EF,BF,BE).
! 85: Implementation details:
! 86: (A & 0x80) == 0 means A < 0x80
! 87: and
! 88: (A & 0xC0) == 0xC0 means A > 0xBF
! 89: */
! 90:
! 91: #define UTF8_INVALID2(p) \
! 92: ((*p) < 0xC2 || ((p)[1] & 0x80) == 0 || ((p)[1] & 0xC0) == 0xC0)
! 93:
! 94: #define UTF8_INVALID3(p) \
! 95: (((p)[2] & 0x80) == 0 \
! 96: || \
! 97: ((*p) == 0xEF && (p)[1] == 0xBF \
! 98: ? \
! 99: (p)[2] > 0xBD \
! 100: : \
! 101: ((p)[2] & 0xC0) == 0xC0) \
! 102: || \
! 103: ((*p) == 0xE0 \
! 104: ? \
! 105: (p)[1] < 0xA0 || ((p)[1] & 0xC0) == 0xC0 \
! 106: : \
! 107: ((p)[1] & 0x80) == 0 \
! 108: || \
! 109: ((*p) == 0xED ? (p)[1] > 0x9F : ((p)[1] & 0xC0) == 0xC0)))
! 110:
! 111: #define UTF8_INVALID4(p) \
! 112: (((p)[3] & 0x80) == 0 || ((p)[3] & 0xC0) == 0xC0 \
! 113: || \
! 114: ((p)[2] & 0x80) == 0 || ((p)[2] & 0xC0) == 0xC0 \
! 115: || \
! 116: ((*p) == 0xF0 \
! 117: ? \
! 118: (p)[1] < 0x90 || ((p)[1] & 0xC0) == 0xC0 \
! 119: : \
! 120: ((p)[1] & 0x80) == 0 \
! 121: || \
! 122: ((*p) == 0xF4 ? (p)[1] > 0x8F : ((p)[1] & 0xC0) == 0xC0)))
! 123:
! 124: static int PTRFASTCALL
! 125: isNever(const ENCODING *enc, const char *p)
! 126: {
! 127: return 0;
! 128: }
! 129:
! 130: static int PTRFASTCALL
! 131: utf8_isName2(const ENCODING *enc, const char *p)
! 132: {
! 133: return UTF8_GET_NAMING2(namePages, (const unsigned char *)p);
! 134: }
! 135:
! 136: static int PTRFASTCALL
! 137: utf8_isName3(const ENCODING *enc, const char *p)
! 138: {
! 139: return UTF8_GET_NAMING3(namePages, (const unsigned char *)p);
! 140: }
! 141:
! 142: #define utf8_isName4 isNever
! 143:
! 144: static int PTRFASTCALL
! 145: utf8_isNmstrt2(const ENCODING *enc, const char *p)
! 146: {
! 147: return UTF8_GET_NAMING2(nmstrtPages, (const unsigned char *)p);
! 148: }
! 149:
! 150: static int PTRFASTCALL
! 151: utf8_isNmstrt3(const ENCODING *enc, const char *p)
! 152: {
! 153: return UTF8_GET_NAMING3(nmstrtPages, (const unsigned char *)p);
! 154: }
! 155:
! 156: #define utf8_isNmstrt4 isNever
! 157:
! 158: static int PTRFASTCALL
! 159: utf8_isInvalid2(const ENCODING *enc, const char *p)
! 160: {
! 161: return UTF8_INVALID2((const unsigned char *)p);
! 162: }
! 163:
! 164: static int PTRFASTCALL
! 165: utf8_isInvalid3(const ENCODING *enc, const char *p)
! 166: {
! 167: return UTF8_INVALID3((const unsigned char *)p);
! 168: }
! 169:
! 170: static int PTRFASTCALL
! 171: utf8_isInvalid4(const ENCODING *enc, const char *p)
! 172: {
! 173: return UTF8_INVALID4((const unsigned char *)p);
! 174: }
! 175:
! 176: struct normal_encoding {
! 177: ENCODING enc;
! 178: unsigned char type[256];
! 179: #ifdef XML_MIN_SIZE
! 180: int (PTRFASTCALL *byteType)(const ENCODING *, const char *);
! 181: int (PTRFASTCALL *isNameMin)(const ENCODING *, const char *);
! 182: int (PTRFASTCALL *isNmstrtMin)(const ENCODING *, const char *);
! 183: int (PTRFASTCALL *byteToAscii)(const ENCODING *, const char *);
! 184: int (PTRCALL *charMatches)(const ENCODING *, const char *, int);
! 185: #endif /* XML_MIN_SIZE */
! 186: int (PTRFASTCALL *isName2)(const ENCODING *, const char *);
! 187: int (PTRFASTCALL *isName3)(const ENCODING *, const char *);
! 188: int (PTRFASTCALL *isName4)(const ENCODING *, const char *);
! 189: int (PTRFASTCALL *isNmstrt2)(const ENCODING *, const char *);
! 190: int (PTRFASTCALL *isNmstrt3)(const ENCODING *, const char *);
! 191: int (PTRFASTCALL *isNmstrt4)(const ENCODING *, const char *);
! 192: int (PTRFASTCALL *isInvalid2)(const ENCODING *, const char *);
! 193: int (PTRFASTCALL *isInvalid3)(const ENCODING *, const char *);
! 194: int (PTRFASTCALL *isInvalid4)(const ENCODING *, const char *);
! 195: };
! 196:
! 197: #define AS_NORMAL_ENCODING(enc) ((const struct normal_encoding *) (enc))
! 198:
! 199: #ifdef XML_MIN_SIZE
! 200:
! 201: #define STANDARD_VTABLE(E) \
! 202: E ## byteType, \
! 203: E ## isNameMin, \
! 204: E ## isNmstrtMin, \
! 205: E ## byteToAscii, \
! 206: E ## charMatches,
! 207:
! 208: #else
! 209:
! 210: #define STANDARD_VTABLE(E) /* as nothing */
! 211:
! 212: #endif
! 213:
! 214: #define NORMAL_VTABLE(E) \
! 215: E ## isName2, \
! 216: E ## isName3, \
! 217: E ## isName4, \
! 218: E ## isNmstrt2, \
! 219: E ## isNmstrt3, \
! 220: E ## isNmstrt4, \
! 221: E ## isInvalid2, \
! 222: E ## isInvalid3, \
! 223: E ## isInvalid4
! 224:
! 225: static int FASTCALL checkCharRefNumber(int);
! 226:
! 227: #include "xmltok_impl.h"
! 228: #include "ascii.h"
! 229:
! 230: #ifdef XML_MIN_SIZE
! 231: #define sb_isNameMin isNever
! 232: #define sb_isNmstrtMin isNever
! 233: #endif
! 234:
! 235: #ifdef XML_MIN_SIZE
! 236: #define MINBPC(enc) ((enc)->minBytesPerChar)
! 237: #else
! 238: /* minimum bytes per character */
! 239: #define MINBPC(enc) 1
! 240: #endif
! 241:
! 242: #define SB_BYTE_TYPE(enc, p) \
! 243: (((struct normal_encoding *)(enc))->type[(unsigned char)*(p)])
! 244:
! 245: #ifdef XML_MIN_SIZE
! 246: static int PTRFASTCALL
! 247: sb_byteType(const ENCODING *enc, const char *p)
! 248: {
! 249: return SB_BYTE_TYPE(enc, p);
! 250: }
! 251: #define BYTE_TYPE(enc, p) \
! 252: (AS_NORMAL_ENCODING(enc)->byteType(enc, p))
! 253: #else
! 254: #define BYTE_TYPE(enc, p) SB_BYTE_TYPE(enc, p)
! 255: #endif
! 256:
! 257: #ifdef XML_MIN_SIZE
! 258: #define BYTE_TO_ASCII(enc, p) \
! 259: (AS_NORMAL_ENCODING(enc)->byteToAscii(enc, p))
! 260: static int PTRFASTCALL
! 261: sb_byteToAscii(const ENCODING *enc, const char *p)
! 262: {
! 263: return *p;
! 264: }
! 265: #else
! 266: #define BYTE_TO_ASCII(enc, p) (*(p))
! 267: #endif
! 268:
! 269: #define IS_NAME_CHAR(enc, p, n) \
! 270: (AS_NORMAL_ENCODING(enc)->isName ## n(enc, p))
! 271: #define IS_NMSTRT_CHAR(enc, p, n) \
! 272: (AS_NORMAL_ENCODING(enc)->isNmstrt ## n(enc, p))
! 273: #define IS_INVALID_CHAR(enc, p, n) \
! 274: (AS_NORMAL_ENCODING(enc)->isInvalid ## n(enc, p))
! 275:
! 276: #ifdef XML_MIN_SIZE
! 277: #define IS_NAME_CHAR_MINBPC(enc, p) \
! 278: (AS_NORMAL_ENCODING(enc)->isNameMin(enc, p))
! 279: #define IS_NMSTRT_CHAR_MINBPC(enc, p) \
! 280: (AS_NORMAL_ENCODING(enc)->isNmstrtMin(enc, p))
! 281: #else
! 282: #define IS_NAME_CHAR_MINBPC(enc, p) (0)
! 283: #define IS_NMSTRT_CHAR_MINBPC(enc, p) (0)
! 284: #endif
! 285:
! 286: #ifdef XML_MIN_SIZE
! 287: #define CHAR_MATCHES(enc, p, c) \
! 288: (AS_NORMAL_ENCODING(enc)->charMatches(enc, p, c))
! 289: static int PTRCALL
! 290: sb_charMatches(const ENCODING *enc, const char *p, int c)
! 291: {
! 292: return *p == c;
! 293: }
! 294: #else
! 295: /* c is an ASCII character */
! 296: #define CHAR_MATCHES(enc, p, c) (*(p) == c)
! 297: #endif
! 298:
! 299: #define PREFIX(ident) normal_ ## ident
! 300: #define XML_TOK_IMPL_C
! 301: #include "xmltok_impl.c"
! 302: #undef XML_TOK_IMPL_C
! 303:
! 304: #undef MINBPC
! 305: #undef BYTE_TYPE
! 306: #undef BYTE_TO_ASCII
! 307: #undef CHAR_MATCHES
! 308: #undef IS_NAME_CHAR
! 309: #undef IS_NAME_CHAR_MINBPC
! 310: #undef IS_NMSTRT_CHAR
! 311: #undef IS_NMSTRT_CHAR_MINBPC
! 312: #undef IS_INVALID_CHAR
! 313:
! 314: enum { /* UTF8_cvalN is value of masked first byte of N byte sequence */
! 315: UTF8_cval1 = 0x00,
! 316: UTF8_cval2 = 0xc0,
! 317: UTF8_cval3 = 0xe0,
! 318: UTF8_cval4 = 0xf0
! 319: };
! 320:
! 321: static void PTRCALL
! 322: utf8_toUtf8(const ENCODING *enc,
! 323: const char **fromP, const char *fromLim,
! 324: char **toP, const char *toLim)
! 325: {
! 326: char *to;
! 327: const char *from;
! 328: if (fromLim - *fromP > toLim - *toP) {
! 329: /* Avoid copying partial characters. */
! 330: for (fromLim = *fromP + (toLim - *toP); fromLim > *fromP; fromLim--)
! 331: if (((unsigned char)fromLim[-1] & 0xc0) != 0x80)
! 332: break;
! 333: }
! 334: for (to = *toP, from = *fromP; from != fromLim; from++, to++)
! 335: *to = *from;
! 336: *fromP = from;
! 337: *toP = to;
! 338: }
! 339:
! 340: static void PTRCALL
! 341: utf8_toUtf16(const ENCODING *enc,
! 342: const char **fromP, const char *fromLim,
! 343: unsigned short **toP, const unsigned short *toLim)
! 344: {
! 345: unsigned short *to = *toP;
! 346: const char *from = *fromP;
! 347: while (from != fromLim && to != toLim) {
! 348: switch (((struct normal_encoding *)enc)->type[(unsigned char)*from]) {
! 349: case BT_LEAD2:
! 350: *to++ = (unsigned short)(((from[0] & 0x1f) << 6) | (from[1] & 0x3f));
! 351: from += 2;
! 352: break;
! 353: case BT_LEAD3:
! 354: *to++ = (unsigned short)(((from[0] & 0xf) << 12)
! 355: | ((from[1] & 0x3f) << 6) | (from[2] & 0x3f));
! 356: from += 3;
! 357: break;
! 358: case BT_LEAD4:
! 359: {
! 360: unsigned long n;
! 361: if (to + 1 == toLim)
! 362: goto after;
! 363: n = ((from[0] & 0x7) << 18) | ((from[1] & 0x3f) << 12)
! 364: | ((from[2] & 0x3f) << 6) | (from[3] & 0x3f);
! 365: n -= 0x10000;
! 366: to[0] = (unsigned short)((n >> 10) | 0xD800);
! 367: to[1] = (unsigned short)((n & 0x3FF) | 0xDC00);
! 368: to += 2;
! 369: from += 4;
! 370: }
! 371: break;
! 372: default:
! 373: *to++ = *from++;
! 374: break;
! 375: }
! 376: }
! 377: after:
! 378: *fromP = from;
! 379: *toP = to;
! 380: }
! 381:
! 382: #ifdef XML_NS
! 383: static const struct normal_encoding utf8_encoding_ns = {
! 384: { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 },
! 385: {
! 386: #include "asciitab.h"
! 387: #include "utf8tab.h"
! 388: },
! 389: STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)
! 390: };
! 391: #endif
! 392:
! 393: static const struct normal_encoding utf8_encoding = {
! 394: { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 },
! 395: {
! 396: #define BT_COLON BT_NMSTRT
! 397: #include "asciitab.h"
! 398: #undef BT_COLON
! 399: #include "utf8tab.h"
! 400: },
! 401: STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)
! 402: };
! 403:
! 404: #ifdef XML_NS
! 405:
! 406: static const struct normal_encoding internal_utf8_encoding_ns = {
! 407: { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 },
! 408: {
! 409: #include "iasciitab.h"
! 410: #include "utf8tab.h"
! 411: },
! 412: STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)
! 413: };
! 414:
! 415: #endif
! 416:
! 417: static const struct normal_encoding internal_utf8_encoding = {
! 418: { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 },
! 419: {
! 420: #define BT_COLON BT_NMSTRT
! 421: #include "iasciitab.h"
! 422: #undef BT_COLON
! 423: #include "utf8tab.h"
! 424: },
! 425: STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)
! 426: };
! 427:
! 428: static void PTRCALL
! 429: latin1_toUtf8(const ENCODING *enc,
! 430: const char **fromP, const char *fromLim,
! 431: char **toP, const char *toLim)
! 432: {
! 433: for (;;) {
! 434: unsigned char c;
! 435: if (*fromP == fromLim)
! 436: break;
! 437: c = (unsigned char)**fromP;
! 438: if (c & 0x80) {
! 439: if (toLim - *toP < 2)
! 440: break;
! 441: *(*toP)++ = (char)((c >> 6) | UTF8_cval2);
! 442: *(*toP)++ = (char)((c & 0x3f) | 0x80);
! 443: (*fromP)++;
! 444: }
! 445: else {
! 446: if (*toP == toLim)
! 447: break;
! 448: *(*toP)++ = *(*fromP)++;
! 449: }
! 450: }
! 451: }
! 452:
! 453: static void PTRCALL
! 454: latin1_toUtf16(const ENCODING *enc,
! 455: const char **fromP, const char *fromLim,
! 456: unsigned short **toP, const unsigned short *toLim)
! 457: {
! 458: while (*fromP != fromLim && *toP != toLim)
! 459: *(*toP)++ = (unsigned char)*(*fromP)++;
! 460: }
! 461:
! 462: #ifdef XML_NS
! 463:
! 464: static const struct normal_encoding latin1_encoding_ns = {
! 465: { VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 },
! 466: {
! 467: #include "asciitab.h"
! 468: #include "latin1tab.h"
! 469: },
! 470: STANDARD_VTABLE(sb_)
! 471: };
! 472:
! 473: #endif
! 474:
! 475: static const struct normal_encoding latin1_encoding = {
! 476: { VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 },
! 477: {
! 478: #define BT_COLON BT_NMSTRT
! 479: #include "asciitab.h"
! 480: #undef BT_COLON
! 481: #include "latin1tab.h"
! 482: },
! 483: STANDARD_VTABLE(sb_)
! 484: };
! 485:
! 486: static void PTRCALL
! 487: ascii_toUtf8(const ENCODING *enc,
! 488: const char **fromP, const char *fromLim,
! 489: char **toP, const char *toLim)
! 490: {
! 491: while (*fromP != fromLim && *toP != toLim)
! 492: *(*toP)++ = *(*fromP)++;
! 493: }
! 494:
! 495: #ifdef XML_NS
! 496:
! 497: static const struct normal_encoding ascii_encoding_ns = {
! 498: { VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 },
! 499: {
! 500: #include "asciitab.h"
! 501: /* BT_NONXML == 0 */
! 502: },
! 503: STANDARD_VTABLE(sb_)
! 504: };
! 505:
! 506: #endif
! 507:
! 508: static const struct normal_encoding ascii_encoding = {
! 509: { VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 },
! 510: {
! 511: #define BT_COLON BT_NMSTRT
! 512: #include "asciitab.h"
! 513: #undef BT_COLON
! 514: /* BT_NONXML == 0 */
! 515: },
! 516: STANDARD_VTABLE(sb_)
! 517: };
! 518:
! 519: static int PTRFASTCALL
! 520: unicode_byte_type(char hi, char lo)
! 521: {
! 522: switch ((unsigned char)hi) {
! 523: case 0xD8: case 0xD9: case 0xDA: case 0xDB:
! 524: return BT_LEAD4;
! 525: case 0xDC: case 0xDD: case 0xDE: case 0xDF:
! 526: return BT_TRAIL;
! 527: case 0xFF:
! 528: switch ((unsigned char)lo) {
! 529: case 0xFF:
! 530: case 0xFE:
! 531: return BT_NONXML;
! 532: }
! 533: break;
! 534: }
! 535: return BT_NONASCII;
! 536: }
! 537:
! 538: #define DEFINE_UTF16_TO_UTF8(E) \
! 539: static void PTRCALL \
! 540: E ## toUtf8(const ENCODING *enc, \
! 541: const char **fromP, const char *fromLim, \
! 542: char **toP, const char *toLim) \
! 543: { \
! 544: const char *from; \
! 545: for (from = *fromP; from != fromLim; from += 2) { \
! 546: int plane; \
! 547: unsigned char lo2; \
! 548: unsigned char lo = GET_LO(from); \
! 549: unsigned char hi = GET_HI(from); \
! 550: switch (hi) { \
! 551: case 0: \
! 552: if (lo < 0x80) { \
! 553: if (*toP == toLim) { \
! 554: *fromP = from; \
! 555: return; \
! 556: } \
! 557: *(*toP)++ = lo; \
! 558: break; \
! 559: } \
! 560: /* fall through */ \
! 561: case 0x1: case 0x2: case 0x3: \
! 562: case 0x4: case 0x5: case 0x6: case 0x7: \
! 563: if (toLim - *toP < 2) { \
! 564: *fromP = from; \
! 565: return; \
! 566: } \
! 567: *(*toP)++ = ((lo >> 6) | (hi << 2) | UTF8_cval2); \
! 568: *(*toP)++ = ((lo & 0x3f) | 0x80); \
! 569: break; \
! 570: default: \
! 571: if (toLim - *toP < 3) { \
! 572: *fromP = from; \
! 573: return; \
! 574: } \
! 575: /* 16 bits divided 4, 6, 6 amongst 3 bytes */ \
! 576: *(*toP)++ = ((hi >> 4) | UTF8_cval3); \
! 577: *(*toP)++ = (((hi & 0xf) << 2) | (lo >> 6) | 0x80); \
! 578: *(*toP)++ = ((lo & 0x3f) | 0x80); \
! 579: break; \
! 580: case 0xD8: case 0xD9: case 0xDA: case 0xDB: \
! 581: if (toLim - *toP < 4) { \
! 582: *fromP = from; \
! 583: return; \
! 584: } \
! 585: plane = (((hi & 0x3) << 2) | ((lo >> 6) & 0x3)) + 1; \
! 586: *(*toP)++ = ((plane >> 2) | UTF8_cval4); \
! 587: *(*toP)++ = (((lo >> 2) & 0xF) | ((plane & 0x3) << 4) | 0x80); \
! 588: from += 2; \
! 589: lo2 = GET_LO(from); \
! 590: *(*toP)++ = (((lo & 0x3) << 4) \
! 591: | ((GET_HI(from) & 0x3) << 2) \
! 592: | (lo2 >> 6) \
! 593: | 0x80); \
! 594: *(*toP)++ = ((lo2 & 0x3f) | 0x80); \
! 595: break; \
! 596: } \
! 597: } \
! 598: *fromP = from; \
! 599: }
! 600:
! 601: #define DEFINE_UTF16_TO_UTF16(E) \
! 602: static void PTRCALL \
! 603: E ## toUtf16(const ENCODING *enc, \
! 604: const char **fromP, const char *fromLim, \
! 605: unsigned short **toP, const unsigned short *toLim) \
! 606: { \
! 607: /* Avoid copying first half only of surrogate */ \
! 608: if (fromLim - *fromP > ((toLim - *toP) << 1) \
! 609: && (GET_HI(fromLim - 2) & 0xF8) == 0xD8) \
! 610: fromLim -= 2; \
! 611: for (; *fromP != fromLim && *toP != toLim; *fromP += 2) \
! 612: *(*toP)++ = (GET_HI(*fromP) << 8) | GET_LO(*fromP); \
! 613: }
! 614:
! 615: #define SET2(ptr, ch) \
! 616: (((ptr)[0] = ((ch) & 0xff)), ((ptr)[1] = ((ch) >> 8)))
! 617: #define GET_LO(ptr) ((unsigned char)(ptr)[0])
! 618: #define GET_HI(ptr) ((unsigned char)(ptr)[1])
! 619:
! 620: DEFINE_UTF16_TO_UTF8(little2_)
! 621: DEFINE_UTF16_TO_UTF16(little2_)
! 622:
! 623: #undef SET2
! 624: #undef GET_LO
! 625: #undef GET_HI
! 626:
! 627: #define SET2(ptr, ch) \
! 628: (((ptr)[0] = ((ch) >> 8)), ((ptr)[1] = ((ch) & 0xFF)))
! 629: #define GET_LO(ptr) ((unsigned char)(ptr)[1])
! 630: #define GET_HI(ptr) ((unsigned char)(ptr)[0])
! 631:
! 632: DEFINE_UTF16_TO_UTF8(big2_)
! 633: DEFINE_UTF16_TO_UTF16(big2_)
! 634:
! 635: #undef SET2
! 636: #undef GET_LO
! 637: #undef GET_HI
! 638:
! 639: #define LITTLE2_BYTE_TYPE(enc, p) \
! 640: ((p)[1] == 0 \
! 641: ? ((struct normal_encoding *)(enc))->type[(unsigned char)*(p)] \
! 642: : unicode_byte_type((p)[1], (p)[0]))
! 643: #define LITTLE2_BYTE_TO_ASCII(enc, p) ((p)[1] == 0 ? (p)[0] : -1)
! 644: #define LITTLE2_CHAR_MATCHES(enc, p, c) ((p)[1] == 0 && (p)[0] == c)
! 645: #define LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) \
! 646: UCS2_GET_NAMING(namePages, (unsigned char)p[1], (unsigned char)p[0])
! 647: #define LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) \
! 648: UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[1], (unsigned char)p[0])
! 649:
! 650: #ifdef XML_MIN_SIZE
! 651:
! 652: static int PTRFASTCALL
! 653: little2_byteType(const ENCODING *enc, const char *p)
! 654: {
! 655: return LITTLE2_BYTE_TYPE(enc, p);
! 656: }
! 657:
! 658: static int PTRFASTCALL
! 659: little2_byteToAscii(const ENCODING *enc, const char *p)
! 660: {
! 661: return LITTLE2_BYTE_TO_ASCII(enc, p);
! 662: }
! 663:
! 664: static int PTRCALL
! 665: little2_charMatches(const ENCODING *enc, const char *p, int c)
! 666: {
! 667: return LITTLE2_CHAR_MATCHES(enc, p, c);
! 668: }
! 669:
! 670: static int PTRFASTCALL
! 671: little2_isNameMin(const ENCODING *enc, const char *p)
! 672: {
! 673: return LITTLE2_IS_NAME_CHAR_MINBPC(enc, p);
! 674: }
! 675:
! 676: static int PTRFASTCALL
! 677: little2_isNmstrtMin(const ENCODING *enc, const char *p)
! 678: {
! 679: return LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p);
! 680: }
! 681:
! 682: #undef VTABLE
! 683: #define VTABLE VTABLE1, little2_toUtf8, little2_toUtf16
! 684:
! 685: #else /* not XML_MIN_SIZE */
! 686:
! 687: #undef PREFIX
! 688: #define PREFIX(ident) little2_ ## ident
! 689: #define MINBPC(enc) 2
! 690: /* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */
! 691: #define BYTE_TYPE(enc, p) LITTLE2_BYTE_TYPE(enc, p)
! 692: #define BYTE_TO_ASCII(enc, p) LITTLE2_BYTE_TO_ASCII(enc, p)
! 693: #define CHAR_MATCHES(enc, p, c) LITTLE2_CHAR_MATCHES(enc, p, c)
! 694: #define IS_NAME_CHAR(enc, p, n) 0
! 695: #define IS_NAME_CHAR_MINBPC(enc, p) LITTLE2_IS_NAME_CHAR_MINBPC(enc, p)
! 696: #define IS_NMSTRT_CHAR(enc, p, n) (0)
! 697: #define IS_NMSTRT_CHAR_MINBPC(enc, p) LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p)
! 698:
! 699: #define XML_TOK_IMPL_C
! 700: #include "xmltok_impl.c"
! 701: #undef XML_TOK_IMPL_C
! 702:
! 703: #undef MINBPC
! 704: #undef BYTE_TYPE
! 705: #undef BYTE_TO_ASCII
! 706: #undef CHAR_MATCHES
! 707: #undef IS_NAME_CHAR
! 708: #undef IS_NAME_CHAR_MINBPC
! 709: #undef IS_NMSTRT_CHAR
! 710: #undef IS_NMSTRT_CHAR_MINBPC
! 711: #undef IS_INVALID_CHAR
! 712:
! 713: #endif /* not XML_MIN_SIZE */
! 714:
! 715: #ifdef XML_NS
! 716:
! 717: static const struct normal_encoding little2_encoding_ns = {
! 718: { VTABLE, 2, 0,
! 719: #if BYTEORDER == 1234
! 720: 1
! 721: #else
! 722: 0
! 723: #endif
! 724: },
! 725: {
! 726: #include "asciitab.h"
! 727: #include "latin1tab.h"
! 728: },
! 729: STANDARD_VTABLE(little2_)
! 730: };
! 731:
! 732: #endif
! 733:
! 734: static const struct normal_encoding little2_encoding = {
! 735: { VTABLE, 2, 0,
! 736: #if BYTEORDER == 1234
! 737: 1
! 738: #else
! 739: 0
! 740: #endif
! 741: },
! 742: {
! 743: #define BT_COLON BT_NMSTRT
! 744: #include "asciitab.h"
! 745: #undef BT_COLON
! 746: #include "latin1tab.h"
! 747: },
! 748: STANDARD_VTABLE(little2_)
! 749: };
! 750:
! 751: #if BYTEORDER != 4321
! 752:
! 753: #ifdef XML_NS
! 754:
! 755: static const struct normal_encoding internal_little2_encoding_ns = {
! 756: { VTABLE, 2, 0, 1 },
! 757: {
! 758: #include "iasciitab.h"
! 759: #include "latin1tab.h"
! 760: },
! 761: STANDARD_VTABLE(little2_)
! 762: };
! 763:
! 764: #endif
! 765:
! 766: static const struct normal_encoding internal_little2_encoding = {
! 767: { VTABLE, 2, 0, 1 },
! 768: {
! 769: #define BT_COLON BT_NMSTRT
! 770: #include "iasciitab.h"
! 771: #undef BT_COLON
! 772: #include "latin1tab.h"
! 773: },
! 774: STANDARD_VTABLE(little2_)
! 775: };
! 776:
! 777: #endif
! 778:
! 779:
! 780: #define BIG2_BYTE_TYPE(enc, p) \
! 781: ((p)[0] == 0 \
! 782: ? ((struct normal_encoding *)(enc))->type[(unsigned char)(p)[1]] \
! 783: : unicode_byte_type((p)[0], (p)[1]))
! 784: #define BIG2_BYTE_TO_ASCII(enc, p) ((p)[0] == 0 ? (p)[1] : -1)
! 785: #define BIG2_CHAR_MATCHES(enc, p, c) ((p)[0] == 0 && (p)[1] == c)
! 786: #define BIG2_IS_NAME_CHAR_MINBPC(enc, p) \
! 787: UCS2_GET_NAMING(namePages, (unsigned char)p[0], (unsigned char)p[1])
! 788: #define BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) \
! 789: UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[0], (unsigned char)p[1])
! 790:
! 791: #ifdef XML_MIN_SIZE
! 792:
! 793: static int PTRFASTCALL
! 794: big2_byteType(const ENCODING *enc, const char *p)
! 795: {
! 796: return BIG2_BYTE_TYPE(enc, p);
! 797: }
! 798:
! 799: static int PTRFASTCALL
! 800: big2_byteToAscii(const ENCODING *enc, const char *p)
! 801: {
! 802: return BIG2_BYTE_TO_ASCII(enc, p);
! 803: }
! 804:
! 805: static int PTRCALL
! 806: big2_charMatches(const ENCODING *enc, const char *p, int c)
! 807: {
! 808: return BIG2_CHAR_MATCHES(enc, p, c);
! 809: }
! 810:
! 811: static int PTRFASTCALL
! 812: big2_isNameMin(const ENCODING *enc, const char *p)
! 813: {
! 814: return BIG2_IS_NAME_CHAR_MINBPC(enc, p);
! 815: }
! 816:
! 817: static int PTRFASTCALL
! 818: big2_isNmstrtMin(const ENCODING *enc, const char *p)
! 819: {
! 820: return BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p);
! 821: }
! 822:
! 823: #undef VTABLE
! 824: #define VTABLE VTABLE1, big2_toUtf8, big2_toUtf16
! 825:
! 826: #else /* not XML_MIN_SIZE */
! 827:
! 828: #undef PREFIX
! 829: #define PREFIX(ident) big2_ ## ident
! 830: #define MINBPC(enc) 2
! 831: /* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */
! 832: #define BYTE_TYPE(enc, p) BIG2_BYTE_TYPE(enc, p)
! 833: #define BYTE_TO_ASCII(enc, p) BIG2_BYTE_TO_ASCII(enc, p)
! 834: #define CHAR_MATCHES(enc, p, c) BIG2_CHAR_MATCHES(enc, p, c)
! 835: #define IS_NAME_CHAR(enc, p, n) 0
! 836: #define IS_NAME_CHAR_MINBPC(enc, p) BIG2_IS_NAME_CHAR_MINBPC(enc, p)
! 837: #define IS_NMSTRT_CHAR(enc, p, n) (0)
! 838: #define IS_NMSTRT_CHAR_MINBPC(enc, p) BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p)
! 839:
! 840: #define XML_TOK_IMPL_C
! 841: #include "xmltok_impl.c"
! 842: #undef XML_TOK_IMPL_C
! 843:
! 844: #undef MINBPC
! 845: #undef BYTE_TYPE
! 846: #undef BYTE_TO_ASCII
! 847: #undef CHAR_MATCHES
! 848: #undef IS_NAME_CHAR
! 849: #undef IS_NAME_CHAR_MINBPC
! 850: #undef IS_NMSTRT_CHAR
! 851: #undef IS_NMSTRT_CHAR_MINBPC
! 852: #undef IS_INVALID_CHAR
! 853:
! 854: #endif /* not XML_MIN_SIZE */
! 855:
! 856: #ifdef XML_NS
! 857:
! 858: static const struct normal_encoding big2_encoding_ns = {
! 859: { VTABLE, 2, 0,
! 860: #if BYTEORDER == 4321
! 861: 1
! 862: #else
! 863: 0
! 864: #endif
! 865: },
! 866: {
! 867: #include "asciitab.h"
! 868: #include "latin1tab.h"
! 869: },
! 870: STANDARD_VTABLE(big2_)
! 871: };
! 872:
! 873: #endif
! 874:
! 875: static const struct normal_encoding big2_encoding = {
! 876: { VTABLE, 2, 0,
! 877: #if BYTEORDER == 4321
! 878: 1
! 879: #else
! 880: 0
! 881: #endif
! 882: },
! 883: {
! 884: #define BT_COLON BT_NMSTRT
! 885: #include "asciitab.h"
! 886: #undef BT_COLON
! 887: #include "latin1tab.h"
! 888: },
! 889: STANDARD_VTABLE(big2_)
! 890: };
! 891:
! 892: #if BYTEORDER != 1234
! 893:
! 894: #ifdef XML_NS
! 895:
! 896: static const struct normal_encoding internal_big2_encoding_ns = {
! 897: { VTABLE, 2, 0, 1 },
! 898: {
! 899: #include "iasciitab.h"
! 900: #include "latin1tab.h"
! 901: },
! 902: STANDARD_VTABLE(big2_)
! 903: };
! 904:
! 905: #endif
! 906:
! 907: static const struct normal_encoding internal_big2_encoding = {
! 908: { VTABLE, 2, 0, 1 },
! 909: {
! 910: #define BT_COLON BT_NMSTRT
! 911: #include "iasciitab.h"
! 912: #undef BT_COLON
! 913: #include "latin1tab.h"
! 914: },
! 915: STANDARD_VTABLE(big2_)
! 916: };
! 917:
! 918: #endif
! 919:
! 920: #undef PREFIX
! 921:
! 922: static int FASTCALL
! 923: streqci(const char *s1, const char *s2)
! 924: {
! 925: for (;;) {
! 926: char c1 = *s1++;
! 927: char c2 = *s2++;
! 928: if (ASCII_a <= c1 && c1 <= ASCII_z)
! 929: c1 += ASCII_A - ASCII_a;
! 930: if (ASCII_a <= c2 && c2 <= ASCII_z)
! 931: c2 += ASCII_A - ASCII_a;
! 932: if (c1 != c2)
! 933: return 0;
! 934: if (!c1)
! 935: break;
! 936: }
! 937: return 1;
! 938: }
! 939:
! 940: static void PTRCALL
! 941: initUpdatePosition(const ENCODING *enc, const char *ptr,
! 942: const char *end, POSITION *pos)
! 943: {
! 944: normal_updatePosition(&utf8_encoding.enc, ptr, end, pos);
! 945: }
! 946:
! 947: static int
! 948: toAscii(const ENCODING *enc, const char *ptr, const char *end)
! 949: {
! 950: char buf[1];
! 951: char *p = buf;
! 952: XmlUtf8Convert(enc, &ptr, end, &p, p + 1);
! 953: if (p == buf)
! 954: return -1;
! 955: else
! 956: return buf[0];
! 957: }
! 958:
! 959: static int FASTCALL
! 960: isSpace(int c)
! 961: {
! 962: switch (c) {
! 963: case 0x20:
! 964: case 0xD:
! 965: case 0xA:
! 966: case 0x9:
! 967: return 1;
! 968: }
! 969: return 0;
! 970: }
! 971:
! 972: /* Return 1 if there's just optional white space or there's an S
! 973: followed by name=val.
! 974: */
! 975: static int
! 976: parsePseudoAttribute(const ENCODING *enc,
! 977: const char *ptr,
! 978: const char *end,
! 979: const char **namePtr,
! 980: const char **nameEndPtr,
! 981: const char **valPtr,
! 982: const char **nextTokPtr)
! 983: {
! 984: int c;
! 985: char open;
! 986: if (ptr == end) {
! 987: *namePtr = NULL;
! 988: return 1;
! 989: }
! 990: if (!isSpace(toAscii(enc, ptr, end))) {
! 991: *nextTokPtr = ptr;
! 992: return 0;
! 993: }
! 994: do {
! 995: ptr += enc->minBytesPerChar;
! 996: } while (isSpace(toAscii(enc, ptr, end)));
! 997: if (ptr == end) {
! 998: *namePtr = NULL;
! 999: return 1;
! 1000: }
! 1001: *namePtr = ptr;
! 1002: for (;;) {
! 1003: c = toAscii(enc, ptr, end);
! 1004: if (c == -1) {
! 1005: *nextTokPtr = ptr;
! 1006: return 0;
! 1007: }
! 1008: if (c == ASCII_EQUALS) {
! 1009: *nameEndPtr = ptr;
! 1010: break;
! 1011: }
! 1012: if (isSpace(c)) {
! 1013: *nameEndPtr = ptr;
! 1014: do {
! 1015: ptr += enc->minBytesPerChar;
! 1016: } while (isSpace(c = toAscii(enc, ptr, end)));
! 1017: if (c != ASCII_EQUALS) {
! 1018: *nextTokPtr = ptr;
! 1019: return 0;
! 1020: }
! 1021: break;
! 1022: }
! 1023: ptr += enc->minBytesPerChar;
! 1024: }
! 1025: if (ptr == *namePtr) {
! 1026: *nextTokPtr = ptr;
! 1027: return 0;
! 1028: }
! 1029: ptr += enc->minBytesPerChar;
! 1030: c = toAscii(enc, ptr, end);
! 1031: while (isSpace(c)) {
! 1032: ptr += enc->minBytesPerChar;
! 1033: c = toAscii(enc, ptr, end);
! 1034: }
! 1035: if (c != ASCII_QUOT && c != ASCII_APOS) {
! 1036: *nextTokPtr = ptr;
! 1037: return 0;
! 1038: }
! 1039: open = (char)c;
! 1040: ptr += enc->minBytesPerChar;
! 1041: *valPtr = ptr;
! 1042: for (;; ptr += enc->minBytesPerChar) {
! 1043: c = toAscii(enc, ptr, end);
! 1044: if (c == open)
! 1045: break;
! 1046: if (!(ASCII_a <= c && c <= ASCII_z)
! 1047: && !(ASCII_A <= c && c <= ASCII_Z)
! 1048: && !(ASCII_0 <= c && c <= ASCII_9)
! 1049: && c != ASCII_PERIOD
! 1050: && c != ASCII_MINUS
! 1051: && c != ASCII_UNDERSCORE) {
! 1052: *nextTokPtr = ptr;
! 1053: return 0;
! 1054: }
! 1055: }
! 1056: *nextTokPtr = ptr + enc->minBytesPerChar;
! 1057: return 1;
! 1058: }
! 1059:
! 1060: static const char KW_version[] = {
! 1061: ASCII_v, ASCII_e, ASCII_r, ASCII_s, ASCII_i, ASCII_o, ASCII_n, '\0'
! 1062: };
! 1063:
! 1064: static const char KW_encoding[] = {
! 1065: ASCII_e, ASCII_n, ASCII_c, ASCII_o, ASCII_d, ASCII_i, ASCII_n, ASCII_g, '\0'
! 1066: };
! 1067:
! 1068: static const char KW_standalone[] = {
! 1069: ASCII_s, ASCII_t, ASCII_a, ASCII_n, ASCII_d, ASCII_a, ASCII_l, ASCII_o,
! 1070: ASCII_n, ASCII_e, '\0'
! 1071: };
! 1072:
! 1073: static const char KW_yes[] = {
! 1074: ASCII_y, ASCII_e, ASCII_s, '\0'
! 1075: };
! 1076:
! 1077: static const char KW_no[] = {
! 1078: ASCII_n, ASCII_o, '\0'
! 1079: };
! 1080:
! 1081: static int
! 1082: doParseXmlDecl(const ENCODING *(*encodingFinder)(const ENCODING *,
! 1083: const char *,
! 1084: const char *),
! 1085: int isGeneralTextEntity,
! 1086: const ENCODING *enc,
! 1087: const char *ptr,
! 1088: const char *end,
! 1089: const char **badPtr,
! 1090: const char **versionPtr,
! 1091: const char **versionEndPtr,
! 1092: const char **encodingName,
! 1093: const ENCODING **encoding,
! 1094: int *standalone)
! 1095: {
! 1096: const char *val = NULL;
! 1097: const char *name = NULL;
! 1098: const char *nameEnd = NULL;
! 1099: ptr += 5 * enc->minBytesPerChar;
! 1100: end -= 2 * enc->minBytesPerChar;
! 1101: if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)
! 1102: || !name) {
! 1103: *badPtr = ptr;
! 1104: return 0;
! 1105: }
! 1106: if (!XmlNameMatchesAscii(enc, name, nameEnd, KW_version)) {
! 1107: if (!isGeneralTextEntity) {
! 1108: *badPtr = name;
! 1109: return 0;
! 1110: }
! 1111: }
! 1112: else {
! 1113: if (versionPtr)
! 1114: *versionPtr = val;
! 1115: if (versionEndPtr)
! 1116: *versionEndPtr = ptr;
! 1117: if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)) {
! 1118: *badPtr = ptr;
! 1119: return 0;
! 1120: }
! 1121: if (!name) {
! 1122: if (isGeneralTextEntity) {
! 1123: /* a TextDecl must have an EncodingDecl */
! 1124: *badPtr = ptr;
! 1125: return 0;
! 1126: }
! 1127: return 1;
! 1128: }
! 1129: }
! 1130: if (XmlNameMatchesAscii(enc, name, nameEnd, KW_encoding)) {
! 1131: int c = toAscii(enc, val, end);
! 1132: if (!(ASCII_a <= c && c <= ASCII_z) && !(ASCII_A <= c && c <= ASCII_Z)) {
! 1133: *badPtr = val;
! 1134: return 0;
! 1135: }
! 1136: if (encodingName)
! 1137: *encodingName = val;
! 1138: if (encoding)
! 1139: *encoding = encodingFinder(enc, val, ptr - enc->minBytesPerChar);
! 1140: if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)) {
! 1141: *badPtr = ptr;
! 1142: return 0;
! 1143: }
! 1144: if (!name)
! 1145: return 1;
! 1146: }
! 1147: if (!XmlNameMatchesAscii(enc, name, nameEnd, KW_standalone)
! 1148: || isGeneralTextEntity) {
! 1149: *badPtr = name;
! 1150: return 0;
! 1151: }
! 1152: if (XmlNameMatchesAscii(enc, val, ptr - enc->minBytesPerChar, KW_yes)) {
! 1153: if (standalone)
! 1154: *standalone = 1;
! 1155: }
! 1156: else if (XmlNameMatchesAscii(enc, val, ptr - enc->minBytesPerChar, KW_no)) {
! 1157: if (standalone)
! 1158: *standalone = 0;
! 1159: }
! 1160: else {
! 1161: *badPtr = val;
! 1162: return 0;
! 1163: }
! 1164: while (isSpace(toAscii(enc, ptr, end)))
! 1165: ptr += enc->minBytesPerChar;
! 1166: if (ptr != end) {
! 1167: *badPtr = ptr;
! 1168: return 0;
! 1169: }
! 1170: return 1;
! 1171: }
! 1172:
! 1173: static int FASTCALL
! 1174: checkCharRefNumber(int result)
! 1175: {
! 1176: switch (result >> 8) {
! 1177: case 0xD8: case 0xD9: case 0xDA: case 0xDB:
! 1178: case 0xDC: case 0xDD: case 0xDE: case 0xDF:
! 1179: return -1;
! 1180: case 0:
! 1181: if (latin1_encoding.type[result] == BT_NONXML)
! 1182: return -1;
! 1183: break;
! 1184: case 0xFF:
! 1185: if (result == 0xFFFE || result == 0xFFFF)
! 1186: return -1;
! 1187: break;
! 1188: }
! 1189: return result;
! 1190: }
! 1191:
! 1192: int FASTCALL
! 1193: XmlUtf8Encode(int c, char *buf)
! 1194: {
! 1195: enum {
! 1196: /* minN is minimum legal resulting value for N byte sequence */
! 1197: min2 = 0x80,
! 1198: min3 = 0x800,
! 1199: min4 = 0x10000
! 1200: };
! 1201:
! 1202: if (c < 0)
! 1203: return 0;
! 1204: if (c < min2) {
! 1205: buf[0] = (char)(c | UTF8_cval1);
! 1206: return 1;
! 1207: }
! 1208: if (c < min3) {
! 1209: buf[0] = (char)((c >> 6) | UTF8_cval2);
! 1210: buf[1] = (char)((c & 0x3f) | 0x80);
! 1211: return 2;
! 1212: }
! 1213: if (c < min4) {
! 1214: buf[0] = (char)((c >> 12) | UTF8_cval3);
! 1215: buf[1] = (char)(((c >> 6) & 0x3f) | 0x80);
! 1216: buf[2] = (char)((c & 0x3f) | 0x80);
! 1217: return 3;
! 1218: }
! 1219: if (c < 0x110000) {
! 1220: buf[0] = (char)((c >> 18) | UTF8_cval4);
! 1221: buf[1] = (char)(((c >> 12) & 0x3f) | 0x80);
! 1222: buf[2] = (char)(((c >> 6) & 0x3f) | 0x80);
! 1223: buf[3] = (char)((c & 0x3f) | 0x80);
! 1224: return 4;
! 1225: }
! 1226: return 0;
! 1227: }
! 1228:
! 1229: int FASTCALL
! 1230: XmlUtf16Encode(int charNum, unsigned short *buf)
! 1231: {
! 1232: if (charNum < 0)
! 1233: return 0;
! 1234: if (charNum < 0x10000) {
! 1235: buf[0] = (unsigned short)charNum;
! 1236: return 1;
! 1237: }
! 1238: if (charNum < 0x110000) {
! 1239: charNum -= 0x10000;
! 1240: buf[0] = (unsigned short)((charNum >> 10) + 0xD800);
! 1241: buf[1] = (unsigned short)((charNum & 0x3FF) + 0xDC00);
! 1242: return 2;
! 1243: }
! 1244: return 0;
! 1245: }
! 1246:
! 1247: struct unknown_encoding {
! 1248: struct normal_encoding normal;
! 1249: CONVERTER convert;
! 1250: void *userData;
! 1251: unsigned short utf16[256];
! 1252: char utf8[256][4];
! 1253: };
! 1254:
! 1255: #define AS_UNKNOWN_ENCODING(enc) ((const struct unknown_encoding *) (enc))
! 1256:
! 1257: int
! 1258: XmlSizeOfUnknownEncoding(void)
! 1259: {
! 1260: return sizeof(struct unknown_encoding);
! 1261: }
! 1262:
! 1263: static int PTRFASTCALL
! 1264: unknown_isName(const ENCODING *enc, const char *p)
! 1265: {
! 1266: const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc);
! 1267: int c = uenc->convert(uenc->userData, p);
! 1268: if (c & ~0xFFFF)
! 1269: return 0;
! 1270: return UCS2_GET_NAMING(namePages, c >> 8, c & 0xFF);
! 1271: }
! 1272:
! 1273: static int PTRFASTCALL
! 1274: unknown_isNmstrt(const ENCODING *enc, const char *p)
! 1275: {
! 1276: const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc);
! 1277: int c = uenc->convert(uenc->userData, p);
! 1278: if (c & ~0xFFFF)
! 1279: return 0;
! 1280: return UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xFF);
! 1281: }
! 1282:
! 1283: static int PTRFASTCALL
! 1284: unknown_isInvalid(const ENCODING *enc, const char *p)
! 1285: {
! 1286: const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc);
! 1287: int c = uenc->convert(uenc->userData, p);
! 1288: return (c & ~0xFFFF) || checkCharRefNumber(c) < 0;
! 1289: }
! 1290:
! 1291: static void PTRCALL
! 1292: unknown_toUtf8(const ENCODING *enc,
! 1293: const char **fromP, const char *fromLim,
! 1294: char **toP, const char *toLim)
! 1295: {
! 1296: const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc);
! 1297: char buf[XML_UTF8_ENCODE_MAX];
! 1298: for (;;) {
! 1299: const char *utf8;
! 1300: int n;
! 1301: if (*fromP == fromLim)
! 1302: break;
! 1303: utf8 = uenc->utf8[(unsigned char)**fromP];
! 1304: n = *utf8++;
! 1305: if (n == 0) {
! 1306: int c = uenc->convert(uenc->userData, *fromP);
! 1307: n = XmlUtf8Encode(c, buf);
! 1308: if (n > toLim - *toP)
! 1309: break;
! 1310: utf8 = buf;
! 1311: *fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP]
! 1312: - (BT_LEAD2 - 2));
! 1313: }
! 1314: else {
! 1315: if (n > toLim - *toP)
! 1316: break;
! 1317: (*fromP)++;
! 1318: }
! 1319: do {
! 1320: *(*toP)++ = *utf8++;
! 1321: } while (--n != 0);
! 1322: }
! 1323: }
! 1324:
! 1325: static void PTRCALL
! 1326: unknown_toUtf16(const ENCODING *enc,
! 1327: const char **fromP, const char *fromLim,
! 1328: unsigned short **toP, const unsigned short *toLim)
! 1329: {
! 1330: const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc);
! 1331: while (*fromP != fromLim && *toP != toLim) {
! 1332: unsigned short c = uenc->utf16[(unsigned char)**fromP];
! 1333: if (c == 0) {
! 1334: c = (unsigned short)
! 1335: uenc->convert(uenc->userData, *fromP);
! 1336: *fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP]
! 1337: - (BT_LEAD2 - 2));
! 1338: }
! 1339: else
! 1340: (*fromP)++;
! 1341: *(*toP)++ = c;
! 1342: }
! 1343: }
! 1344:
! 1345: ENCODING *
! 1346: XmlInitUnknownEncoding(void *mem,
! 1347: int *table,
! 1348: CONVERTER convert,
! 1349: void *userData)
! 1350: {
! 1351: int i;
! 1352: struct unknown_encoding *e = (struct unknown_encoding *)mem;
! 1353: for (i = 0; i < (int)sizeof(struct normal_encoding); i++)
! 1354: ((char *)mem)[i] = ((char *)&latin1_encoding)[i];
! 1355: for (i = 0; i < 128; i++)
! 1356: if (latin1_encoding.type[i] != BT_OTHER
! 1357: && latin1_encoding.type[i] != BT_NONXML
! 1358: && table[i] != i)
! 1359: return 0;
! 1360: for (i = 0; i < 256; i++) {
! 1361: int c = table[i];
! 1362: if (c == -1) {
! 1363: e->normal.type[i] = BT_MALFORM;
! 1364: /* This shouldn't really get used. */
! 1365: e->utf16[i] = 0xFFFF;
! 1366: e->utf8[i][0] = 1;
! 1367: e->utf8[i][1] = 0;
! 1368: }
! 1369: else if (c < 0) {
! 1370: if (c < -4)
! 1371: return 0;
! 1372: e->normal.type[i] = (unsigned char)(BT_LEAD2 - (c + 2));
! 1373: e->utf8[i][0] = 0;
! 1374: e->utf16[i] = 0;
! 1375: }
! 1376: else if (c < 0x80) {
! 1377: if (latin1_encoding.type[c] != BT_OTHER
! 1378: && latin1_encoding.type[c] != BT_NONXML
! 1379: && c != i)
! 1380: return 0;
! 1381: e->normal.type[i] = latin1_encoding.type[c];
! 1382: e->utf8[i][0] = 1;
! 1383: e->utf8[i][1] = (char)c;
! 1384: e->utf16[i] = (unsigned short)(c == 0 ? 0xFFFF : c);
! 1385: }
! 1386: else if (checkCharRefNumber(c) < 0) {
! 1387: e->normal.type[i] = BT_NONXML;
! 1388: /* This shouldn't really get used. */
! 1389: e->utf16[i] = 0xFFFF;
! 1390: e->utf8[i][0] = 1;
! 1391: e->utf8[i][1] = 0;
! 1392: }
! 1393: else {
! 1394: if (c > 0xFFFF)
! 1395: return 0;
! 1396: if (UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xff))
! 1397: e->normal.type[i] = BT_NMSTRT;
! 1398: else if (UCS2_GET_NAMING(namePages, c >> 8, c & 0xff))
! 1399: e->normal.type[i] = BT_NAME;
! 1400: else
! 1401: e->normal.type[i] = BT_OTHER;
! 1402: e->utf8[i][0] = (char)XmlUtf8Encode(c, e->utf8[i] + 1);
! 1403: e->utf16[i] = (unsigned short)c;
! 1404: }
! 1405: }
! 1406: e->userData = userData;
! 1407: e->convert = convert;
! 1408: if (convert) {
! 1409: e->normal.isName2 = unknown_isName;
! 1410: e->normal.isName3 = unknown_isName;
! 1411: e->normal.isName4 = unknown_isName;
! 1412: e->normal.isNmstrt2 = unknown_isNmstrt;
! 1413: e->normal.isNmstrt3 = unknown_isNmstrt;
! 1414: e->normal.isNmstrt4 = unknown_isNmstrt;
! 1415: e->normal.isInvalid2 = unknown_isInvalid;
! 1416: e->normal.isInvalid3 = unknown_isInvalid;
! 1417: e->normal.isInvalid4 = unknown_isInvalid;
! 1418: }
! 1419: e->normal.enc.utf8Convert = unknown_toUtf8;
! 1420: e->normal.enc.utf16Convert = unknown_toUtf16;
! 1421: return &(e->normal.enc);
! 1422: }
! 1423:
! 1424: /* If this enumeration is changed, getEncodingIndex and encodings
! 1425: must also be changed. */
! 1426: enum {
! 1427: UNKNOWN_ENC = -1,
! 1428: ISO_8859_1_ENC = 0,
! 1429: US_ASCII_ENC,
! 1430: UTF_8_ENC,
! 1431: UTF_16_ENC,
! 1432: UTF_16BE_ENC,
! 1433: UTF_16LE_ENC,
! 1434: /* must match encodingNames up to here */
! 1435: NO_ENC
! 1436: };
! 1437:
! 1438: static const char KW_ISO_8859_1[] = {
! 1439: ASCII_I, ASCII_S, ASCII_O, ASCII_MINUS, ASCII_8, ASCII_8, ASCII_5, ASCII_9,
! 1440: ASCII_MINUS, ASCII_1, '\0'
! 1441: };
! 1442: static const char KW_US_ASCII[] = {
! 1443: ASCII_U, ASCII_S, ASCII_MINUS, ASCII_A, ASCII_S, ASCII_C, ASCII_I, ASCII_I,
! 1444: '\0'
! 1445: };
! 1446: static const char KW_UTF_8[] = {
! 1447: ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_8, '\0'
! 1448: };
! 1449: static const char KW_UTF_16[] = {
! 1450: ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, '\0'
! 1451: };
! 1452: static const char KW_UTF_16BE[] = {
! 1453: ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, ASCII_B, ASCII_E,
! 1454: '\0'
! 1455: };
! 1456: static const char KW_UTF_16LE[] = {
! 1457: ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, ASCII_L, ASCII_E,
! 1458: '\0'
! 1459: };
! 1460:
! 1461: static int FASTCALL
! 1462: getEncodingIndex(const char *name)
! 1463: {
! 1464: static const char * const encodingNames[] = {
! 1465: KW_ISO_8859_1,
! 1466: KW_US_ASCII,
! 1467: KW_UTF_8,
! 1468: KW_UTF_16,
! 1469: KW_UTF_16BE,
! 1470: KW_UTF_16LE,
! 1471: };
! 1472: int i;
! 1473: if (name == NULL)
! 1474: return NO_ENC;
! 1475: for (i = 0; i < (int)(sizeof(encodingNames)/sizeof(encodingNames[0])); i++)
! 1476: if (streqci(name, encodingNames[i]))
! 1477: return i;
! 1478: return UNKNOWN_ENC;
! 1479: }
! 1480:
! 1481: /* For binary compatibility, we store the index of the encoding
! 1482: specified at initialization in the isUtf16 member.
! 1483: */
! 1484:
! 1485: #define INIT_ENC_INDEX(enc) ((int)(enc)->initEnc.isUtf16)
! 1486: #define SET_INIT_ENC_INDEX(enc, i) ((enc)->initEnc.isUtf16 = (char)i)
! 1487:
! 1488: /* This is what detects the encoding. encodingTable maps from
! 1489: encoding indices to encodings; INIT_ENC_INDEX(enc) is the index of
! 1490: the external (protocol) specified encoding; state is
! 1491: XML_CONTENT_STATE if we're parsing an external text entity, and
! 1492: XML_PROLOG_STATE otherwise.
! 1493: */
! 1494:
! 1495:
! 1496: static int
! 1497: initScan(const ENCODING * const *encodingTable,
! 1498: const INIT_ENCODING *enc,
! 1499: int state,
! 1500: const char *ptr,
! 1501: const char *end,
! 1502: const char **nextTokPtr)
! 1503: {
! 1504: const ENCODING **encPtr;
! 1505:
! 1506: if (ptr == end)
! 1507: return XML_TOK_NONE;
! 1508: encPtr = enc->encPtr;
! 1509: if (ptr + 1 == end) {
! 1510: /* only a single byte available for auto-detection */
! 1511: #ifndef XML_DTD /* FIXME */
! 1512: /* a well-formed document entity must have more than one byte */
! 1513: if (state != XML_CONTENT_STATE)
! 1514: return XML_TOK_PARTIAL;
! 1515: #endif
! 1516: /* so we're parsing an external text entity... */
! 1517: /* if UTF-16 was externally specified, then we need at least 2 bytes */
! 1518: switch (INIT_ENC_INDEX(enc)) {
! 1519: case UTF_16_ENC:
! 1520: case UTF_16LE_ENC:
! 1521: case UTF_16BE_ENC:
! 1522: return XML_TOK_PARTIAL;
! 1523: }
! 1524: switch ((unsigned char)*ptr) {
! 1525: case 0xFE:
! 1526: case 0xFF:
! 1527: case 0xEF: /* possibly first byte of UTF-8 BOM */
! 1528: if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC
! 1529: && state == XML_CONTENT_STATE)
! 1530: break;
! 1531: /* fall through */
! 1532: case 0x00:
! 1533: case 0x3C:
! 1534: return XML_TOK_PARTIAL;
! 1535: }
! 1536: }
! 1537: else {
! 1538: switch (((unsigned char)ptr[0] << 8) | (unsigned char)ptr[1]) {
! 1539: case 0xFEFF:
! 1540: if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC
! 1541: && state == XML_CONTENT_STATE)
! 1542: break;
! 1543: *nextTokPtr = ptr + 2;
! 1544: *encPtr = encodingTable[UTF_16BE_ENC];
! 1545: return XML_TOK_BOM;
! 1546: /* 00 3C is handled in the default case */
! 1547: case 0x3C00:
! 1548: if ((INIT_ENC_INDEX(enc) == UTF_16BE_ENC
! 1549: || INIT_ENC_INDEX(enc) == UTF_16_ENC)
! 1550: && state == XML_CONTENT_STATE)
! 1551: break;
! 1552: *encPtr = encodingTable[UTF_16LE_ENC];
! 1553: return XmlTok(*encPtr, state, ptr, end, nextTokPtr);
! 1554: case 0xFFFE:
! 1555: if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC
! 1556: && state == XML_CONTENT_STATE)
! 1557: break;
! 1558: *nextTokPtr = ptr + 2;
! 1559: *encPtr = encodingTable[UTF_16LE_ENC];
! 1560: return XML_TOK_BOM;
! 1561: case 0xEFBB:
! 1562: /* Maybe a UTF-8 BOM (EF BB BF) */
! 1563: /* If there's an explicitly specified (external) encoding
! 1564: of ISO-8859-1 or some flavour of UTF-16
! 1565: and this is an external text entity,
! 1566: don't look for the BOM,
! 1567: because it might be a legal data.
! 1568: */
! 1569: if (state == XML_CONTENT_STATE) {
! 1570: int e = INIT_ENC_INDEX(enc);
! 1571: if (e == ISO_8859_1_ENC || e == UTF_16BE_ENC
! 1572: || e == UTF_16LE_ENC || e == UTF_16_ENC)
! 1573: break;
! 1574: }
! 1575: if (ptr + 2 == end)
! 1576: return XML_TOK_PARTIAL;
! 1577: if ((unsigned char)ptr[2] == 0xBF) {
! 1578: *nextTokPtr = ptr + 3;
! 1579: *encPtr = encodingTable[UTF_8_ENC];
! 1580: return XML_TOK_BOM;
! 1581: }
! 1582: break;
! 1583: default:
! 1584: if (ptr[0] == '\0') {
! 1585: /* 0 isn't a legal data character. Furthermore a document
! 1586: entity can only start with ASCII characters. So the only
! 1587: way this can fail to be big-endian UTF-16 if it it's an
! 1588: external parsed general entity that's labelled as
! 1589: UTF-16LE.
! 1590: */
! 1591: if (state == XML_CONTENT_STATE && INIT_ENC_INDEX(enc) == UTF_16LE_ENC)
! 1592: break;
! 1593: *encPtr = encodingTable[UTF_16BE_ENC];
! 1594: return XmlTok(*encPtr, state, ptr, end, nextTokPtr);
! 1595: }
! 1596: else if (ptr[1] == '\0') {
! 1597: /* We could recover here in the case:
! 1598: - parsing an external entity
! 1599: - second byte is 0
! 1600: - no externally specified encoding
! 1601: - no encoding declaration
! 1602: by assuming UTF-16LE. But we don't, because this would mean when
! 1603: presented just with a single byte, we couldn't reliably determine
! 1604: whether we needed further bytes.
! 1605: */
! 1606: if (state == XML_CONTENT_STATE)
! 1607: break;
! 1608: *encPtr = encodingTable[UTF_16LE_ENC];
! 1609: return XmlTok(*encPtr, state, ptr, end, nextTokPtr);
! 1610: }
! 1611: break;
! 1612: }
! 1613: }
! 1614: *encPtr = encodingTable[INIT_ENC_INDEX(enc)];
! 1615: return XmlTok(*encPtr, state, ptr, end, nextTokPtr);
! 1616: }
! 1617:
! 1618:
! 1619: #define NS(x) x
! 1620: #define ns(x) x
! 1621: #define XML_TOK_NS_C
! 1622: #include "xmltok_ns.c"
! 1623: #undef XML_TOK_NS_C
! 1624: #undef NS
! 1625: #undef ns
! 1626:
! 1627: #ifdef XML_NS
! 1628:
! 1629: #define NS(x) x ## NS
! 1630: #define ns(x) x ## _ns
! 1631:
! 1632: #define XML_TOK_NS_C
! 1633: #include "xmltok_ns.c"
! 1634: #undef XML_TOK_NS_C
! 1635:
! 1636: #undef NS
! 1637: #undef ns
! 1638:
! 1639: ENCODING *
! 1640: XmlInitUnknownEncodingNS(void *mem,
! 1641: int *table,
! 1642: CONVERTER convert,
! 1643: void *userData)
! 1644: {
! 1645: ENCODING *enc = XmlInitUnknownEncoding(mem, table, convert, userData);
! 1646: if (enc)
! 1647: ((struct normal_encoding *)enc)->type[ASCII_COLON] = BT_COLON;
! 1648: return enc;
! 1649: }
! 1650:
! 1651: #endif /* XML_NS */
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