Annotation of embedaddon/libxml2/HTMLparser.c, revision 1.1
1.1 ! misho 1: /*
! 2: * HTMLparser.c : an HTML 4.0 non-verifying parser
! 3: *
! 4: * See Copyright for the status of this software.
! 5: *
! 6: * daniel@veillard.com
! 7: */
! 8:
! 9: #define IN_LIBXML
! 10: #include "libxml.h"
! 11: #ifdef LIBXML_HTML_ENABLED
! 12:
! 13: #include <string.h>
! 14: #ifdef HAVE_CTYPE_H
! 15: #include <ctype.h>
! 16: #endif
! 17: #ifdef HAVE_STDLIB_H
! 18: #include <stdlib.h>
! 19: #endif
! 20: #ifdef HAVE_SYS_STAT_H
! 21: #include <sys/stat.h>
! 22: #endif
! 23: #ifdef HAVE_FCNTL_H
! 24: #include <fcntl.h>
! 25: #endif
! 26: #ifdef HAVE_UNISTD_H
! 27: #include <unistd.h>
! 28: #endif
! 29: #ifdef HAVE_ZLIB_H
! 30: #include <zlib.h>
! 31: #endif
! 32:
! 33: #include <libxml/xmlmemory.h>
! 34: #include <libxml/tree.h>
! 35: #include <libxml/parser.h>
! 36: #include <libxml/parserInternals.h>
! 37: #include <libxml/xmlerror.h>
! 38: #include <libxml/HTMLparser.h>
! 39: #include <libxml/HTMLtree.h>
! 40: #include <libxml/entities.h>
! 41: #include <libxml/encoding.h>
! 42: #include <libxml/valid.h>
! 43: #include <libxml/xmlIO.h>
! 44: #include <libxml/globals.h>
! 45: #include <libxml/uri.h>
! 46:
! 47: #define HTML_MAX_NAMELEN 1000
! 48: #define HTML_PARSER_BIG_BUFFER_SIZE 1000
! 49: #define HTML_PARSER_BUFFER_SIZE 100
! 50:
! 51: /* #define DEBUG */
! 52: /* #define DEBUG_PUSH */
! 53:
! 54: static int htmlOmittedDefaultValue = 1;
! 55:
! 56: xmlChar * htmlDecodeEntities(htmlParserCtxtPtr ctxt, int len,
! 57: xmlChar end, xmlChar end2, xmlChar end3);
! 58: static void htmlParseComment(htmlParserCtxtPtr ctxt);
! 59:
! 60: /************************************************************************
! 61: * *
! 62: * Some factorized error routines *
! 63: * *
! 64: ************************************************************************/
! 65:
! 66: /**
! 67: * htmlErrMemory:
! 68: * @ctxt: an HTML parser context
! 69: * @extra: extra informations
! 70: *
! 71: * Handle a redefinition of attribute error
! 72: */
! 73: static void
! 74: htmlErrMemory(xmlParserCtxtPtr ctxt, const char *extra)
! 75: {
! 76: if ((ctxt != NULL) && (ctxt->disableSAX != 0) &&
! 77: (ctxt->instate == XML_PARSER_EOF))
! 78: return;
! 79: if (ctxt != NULL) {
! 80: ctxt->errNo = XML_ERR_NO_MEMORY;
! 81: ctxt->instate = XML_PARSER_EOF;
! 82: ctxt->disableSAX = 1;
! 83: }
! 84: if (extra)
! 85: __xmlRaiseError(NULL, NULL, NULL, ctxt, NULL, XML_FROM_PARSER,
! 86: XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra,
! 87: NULL, NULL, 0, 0,
! 88: "Memory allocation failed : %s\n", extra);
! 89: else
! 90: __xmlRaiseError(NULL, NULL, NULL, ctxt, NULL, XML_FROM_PARSER,
! 91: XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL,
! 92: NULL, NULL, 0, 0, "Memory allocation failed\n");
! 93: }
! 94:
! 95: /**
! 96: * htmlParseErr:
! 97: * @ctxt: an HTML parser context
! 98: * @error: the error number
! 99: * @msg: the error message
! 100: * @str1: string infor
! 101: * @str2: string infor
! 102: *
! 103: * Handle a fatal parser error, i.e. violating Well-Formedness constraints
! 104: */
! 105: static void
! 106: htmlParseErr(xmlParserCtxtPtr ctxt, xmlParserErrors error,
! 107: const char *msg, const xmlChar *str1, const xmlChar *str2)
! 108: {
! 109: if ((ctxt != NULL) && (ctxt->disableSAX != 0) &&
! 110: (ctxt->instate == XML_PARSER_EOF))
! 111: return;
! 112: if (ctxt != NULL)
! 113: ctxt->errNo = error;
! 114: __xmlRaiseError(NULL, NULL, NULL, ctxt, NULL, XML_FROM_HTML, error,
! 115: XML_ERR_ERROR, NULL, 0,
! 116: (const char *) str1, (const char *) str2,
! 117: NULL, 0, 0,
! 118: msg, str1, str2);
! 119: if (ctxt != NULL)
! 120: ctxt->wellFormed = 0;
! 121: }
! 122:
! 123: /**
! 124: * htmlParseErrInt:
! 125: * @ctxt: an HTML parser context
! 126: * @error: the error number
! 127: * @msg: the error message
! 128: * @val: integer info
! 129: *
! 130: * Handle a fatal parser error, i.e. violating Well-Formedness constraints
! 131: */
! 132: static void
! 133: htmlParseErrInt(xmlParserCtxtPtr ctxt, xmlParserErrors error,
! 134: const char *msg, int val)
! 135: {
! 136: if ((ctxt != NULL) && (ctxt->disableSAX != 0) &&
! 137: (ctxt->instate == XML_PARSER_EOF))
! 138: return;
! 139: if (ctxt != NULL)
! 140: ctxt->errNo = error;
! 141: __xmlRaiseError(NULL, NULL, NULL, ctxt, NULL, XML_FROM_HTML, error,
! 142: XML_ERR_ERROR, NULL, 0, NULL, NULL,
! 143: NULL, val, 0, msg, val);
! 144: if (ctxt != NULL)
! 145: ctxt->wellFormed = 0;
! 146: }
! 147:
! 148: /************************************************************************
! 149: * *
! 150: * Parser stacks related functions and macros *
! 151: * *
! 152: ************************************************************************/
! 153:
! 154: /**
! 155: * htmlnamePush:
! 156: * @ctxt: an HTML parser context
! 157: * @value: the element name
! 158: *
! 159: * Pushes a new element name on top of the name stack
! 160: *
! 161: * Returns 0 in case of error, the index in the stack otherwise
! 162: */
! 163: static int
! 164: htmlnamePush(htmlParserCtxtPtr ctxt, const xmlChar * value)
! 165: {
! 166: if ((ctxt->html < 3) && (xmlStrEqual(value, BAD_CAST "head")))
! 167: ctxt->html = 3;
! 168: if ((ctxt->html < 10) && (xmlStrEqual(value, BAD_CAST "body")))
! 169: ctxt->html = 10;
! 170: if (ctxt->nameNr >= ctxt->nameMax) {
! 171: ctxt->nameMax *= 2;
! 172: ctxt->nameTab = (const xmlChar * *)
! 173: xmlRealloc((xmlChar * *)ctxt->nameTab,
! 174: ctxt->nameMax *
! 175: sizeof(ctxt->nameTab[0]));
! 176: if (ctxt->nameTab == NULL) {
! 177: htmlErrMemory(ctxt, NULL);
! 178: return (0);
! 179: }
! 180: }
! 181: ctxt->nameTab[ctxt->nameNr] = value;
! 182: ctxt->name = value;
! 183: return (ctxt->nameNr++);
! 184: }
! 185: /**
! 186: * htmlnamePop:
! 187: * @ctxt: an HTML parser context
! 188: *
! 189: * Pops the top element name from the name stack
! 190: *
! 191: * Returns the name just removed
! 192: */
! 193: static const xmlChar *
! 194: htmlnamePop(htmlParserCtxtPtr ctxt)
! 195: {
! 196: const xmlChar *ret;
! 197:
! 198: if (ctxt->nameNr <= 0)
! 199: return (NULL);
! 200: ctxt->nameNr--;
! 201: if (ctxt->nameNr < 0)
! 202: return (NULL);
! 203: if (ctxt->nameNr > 0)
! 204: ctxt->name = ctxt->nameTab[ctxt->nameNr - 1];
! 205: else
! 206: ctxt->name = NULL;
! 207: ret = ctxt->nameTab[ctxt->nameNr];
! 208: ctxt->nameTab[ctxt->nameNr] = NULL;
! 209: return (ret);
! 210: }
! 211:
! 212: /**
! 213: * htmlNodeInfoPush:
! 214: * @ctxt: an HTML parser context
! 215: * @value: the node info
! 216: *
! 217: * Pushes a new element name on top of the node info stack
! 218: *
! 219: * Returns 0 in case of error, the index in the stack otherwise
! 220: */
! 221: static int
! 222: htmlNodeInfoPush(htmlParserCtxtPtr ctxt, htmlParserNodeInfo *value)
! 223: {
! 224: if (ctxt->nodeInfoNr >= ctxt->nodeInfoMax) {
! 225: if (ctxt->nodeInfoMax == 0)
! 226: ctxt->nodeInfoMax = 5;
! 227: ctxt->nodeInfoMax *= 2;
! 228: ctxt->nodeInfoTab = (htmlParserNodeInfo *)
! 229: xmlRealloc((htmlParserNodeInfo *)ctxt->nodeInfoTab,
! 230: ctxt->nodeInfoMax *
! 231: sizeof(ctxt->nodeInfoTab[0]));
! 232: if (ctxt->nodeInfoTab == NULL) {
! 233: htmlErrMemory(ctxt, NULL);
! 234: return (0);
! 235: }
! 236: }
! 237: ctxt->nodeInfoTab[ctxt->nodeInfoNr] = *value;
! 238: ctxt->nodeInfo = &ctxt->nodeInfoTab[ctxt->nodeInfoNr];
! 239: return (ctxt->nodeInfoNr++);
! 240: }
! 241:
! 242: /**
! 243: * htmlNodeInfoPop:
! 244: * @ctxt: an HTML parser context
! 245: *
! 246: * Pops the top element name from the node info stack
! 247: *
! 248: * Returns 0 in case of error, the pointer to NodeInfo otherwise
! 249: */
! 250: static htmlParserNodeInfo *
! 251: htmlNodeInfoPop(htmlParserCtxtPtr ctxt)
! 252: {
! 253: if (ctxt->nodeInfoNr <= 0)
! 254: return (NULL);
! 255: ctxt->nodeInfoNr--;
! 256: if (ctxt->nodeInfoNr < 0)
! 257: return (NULL);
! 258: if (ctxt->nodeInfoNr > 0)
! 259: ctxt->nodeInfo = &ctxt->nodeInfoTab[ctxt->nodeInfoNr - 1];
! 260: else
! 261: ctxt->nodeInfo = NULL;
! 262: return &ctxt->nodeInfoTab[ctxt->nodeInfoNr];
! 263: }
! 264:
! 265: /*
! 266: * Macros for accessing the content. Those should be used only by the parser,
! 267: * and not exported.
! 268: *
! 269: * Dirty macros, i.e. one need to make assumption on the context to use them
! 270: *
! 271: * CUR_PTR return the current pointer to the xmlChar to be parsed.
! 272: * CUR returns the current xmlChar value, i.e. a 8 bit value if compiled
! 273: * in ISO-Latin or UTF-8, and the current 16 bit value if compiled
! 274: * in UNICODE mode. This should be used internally by the parser
! 275: * only to compare to ASCII values otherwise it would break when
! 276: * running with UTF-8 encoding.
! 277: * NXT(n) returns the n'th next xmlChar. Same as CUR is should be used only
! 278: * to compare on ASCII based substring.
! 279: * UPP(n) returns the n'th next xmlChar converted to uppercase. Same as CUR
! 280: * it should be used only to compare on ASCII based substring.
! 281: * SKIP(n) Skip n xmlChar, and must also be used only to skip ASCII defined
! 282: * strings without newlines within the parser.
! 283: *
! 284: * Clean macros, not dependent of an ASCII context, expect UTF-8 encoding
! 285: *
! 286: * CURRENT Returns the current char value, with the full decoding of
! 287: * UTF-8 if we are using this mode. It returns an int.
! 288: * NEXT Skip to the next character, this does the proper decoding
! 289: * in UTF-8 mode. It also pop-up unfinished entities on the fly.
! 290: * NEXTL(l) Skip the current unicode character of l xmlChars long.
! 291: * COPY(to) copy one char to *to, increment CUR_PTR and to accordingly
! 292: */
! 293:
! 294: #define UPPER (toupper(*ctxt->input->cur))
! 295:
! 296: #define SKIP(val) ctxt->nbChars += (val),ctxt->input->cur += (val),ctxt->input->col+=(val)
! 297:
! 298: #define NXT(val) ctxt->input->cur[(val)]
! 299:
! 300: #define UPP(val) (toupper(ctxt->input->cur[(val)]))
! 301:
! 302: #define CUR_PTR ctxt->input->cur
! 303:
! 304: #define SHRINK if ((ctxt->input->cur - ctxt->input->base > 2 * INPUT_CHUNK) && \
! 305: (ctxt->input->end - ctxt->input->cur < 2 * INPUT_CHUNK)) \
! 306: xmlParserInputShrink(ctxt->input)
! 307:
! 308: #define GROW if ((ctxt->progressive == 0) && \
! 309: (ctxt->input->end - ctxt->input->cur < INPUT_CHUNK)) \
! 310: xmlParserInputGrow(ctxt->input, INPUT_CHUNK)
! 311:
! 312: #define CURRENT ((int) (*ctxt->input->cur))
! 313:
! 314: #define SKIP_BLANKS htmlSkipBlankChars(ctxt)
! 315:
! 316: /* Inported from XML */
! 317:
! 318: /* #define CUR (ctxt->token ? ctxt->token : (int) (*ctxt->input->cur)) */
! 319: #define CUR ((int) (*ctxt->input->cur))
! 320: #define NEXT xmlNextChar(ctxt)
! 321:
! 322: #define RAW (ctxt->token ? -1 : (*ctxt->input->cur))
! 323:
! 324:
! 325: #define NEXTL(l) do { \
! 326: if (*(ctxt->input->cur) == '\n') { \
! 327: ctxt->input->line++; ctxt->input->col = 1; \
! 328: } else ctxt->input->col++; \
! 329: ctxt->token = 0; ctxt->input->cur += l; ctxt->nbChars++; \
! 330: } while (0)
! 331:
! 332: /************
! 333: \
! 334: if (*ctxt->input->cur == '%') xmlParserHandlePEReference(ctxt); \
! 335: if (*ctxt->input->cur == '&') xmlParserHandleReference(ctxt);
! 336: ************/
! 337:
! 338: #define CUR_CHAR(l) htmlCurrentChar(ctxt, &l)
! 339: #define CUR_SCHAR(s, l) xmlStringCurrentChar(ctxt, s, &l)
! 340:
! 341: #define COPY_BUF(l,b,i,v) \
! 342: if (l == 1) b[i++] = (xmlChar) v; \
! 343: else i += xmlCopyChar(l,&b[i],v)
! 344:
! 345: /**
! 346: * htmlFindEncoding:
! 347: * @the HTML parser context
! 348: *
! 349: * Ty to find and encoding in the current data available in the input
! 350: * buffer this is needed to try to switch to the proper encoding when
! 351: * one face a character error.
! 352: * That's an heuristic, since it's operating outside of parsing it could
! 353: * try to use a meta which had been commented out, that's the reason it
! 354: * should only be used in case of error, not as a default.
! 355: *
! 356: * Returns an encoding string or NULL if not found, the string need to
! 357: * be freed
! 358: */
! 359: static xmlChar *
! 360: htmlFindEncoding(xmlParserCtxtPtr ctxt) {
! 361: const xmlChar *start, *cur, *end;
! 362:
! 363: if ((ctxt == NULL) || (ctxt->input == NULL) ||
! 364: (ctxt->input->encoding != NULL) || (ctxt->input->buf == NULL) ||
! 365: (ctxt->input->buf->encoder != NULL))
! 366: return(NULL);
! 367: if ((ctxt->input->cur == NULL) || (ctxt->input->end == NULL))
! 368: return(NULL);
! 369:
! 370: start = ctxt->input->cur;
! 371: end = ctxt->input->end;
! 372: /* we also expect the input buffer to be zero terminated */
! 373: if (*end != 0)
! 374: return(NULL);
! 375:
! 376: cur = xmlStrcasestr(start, BAD_CAST "HTTP-EQUIV");
! 377: if (cur == NULL)
! 378: return(NULL);
! 379: cur = xmlStrcasestr(cur, BAD_CAST "CONTENT");
! 380: if (cur == NULL)
! 381: return(NULL);
! 382: cur = xmlStrcasestr(cur, BAD_CAST "CHARSET=");
! 383: if (cur == NULL)
! 384: return(NULL);
! 385: cur += 8;
! 386: start = cur;
! 387: while (((*cur >= 'A') && (*cur <= 'Z')) ||
! 388: ((*cur >= 'a') && (*cur <= 'z')) ||
! 389: ((*cur >= '0') && (*cur <= '9')) ||
! 390: (*cur == '-') || (*cur == '_') || (*cur == ':') || (*cur == '/'))
! 391: cur++;
! 392: if (cur == start)
! 393: return(NULL);
! 394: return(xmlStrndup(start, cur - start));
! 395: }
! 396:
! 397: /**
! 398: * htmlCurrentChar:
! 399: * @ctxt: the HTML parser context
! 400: * @len: pointer to the length of the char read
! 401: *
! 402: * The current char value, if using UTF-8 this may actually span multiple
! 403: * bytes in the input buffer. Implement the end of line normalization:
! 404: * 2.11 End-of-Line Handling
! 405: * If the encoding is unspecified, in the case we find an ISO-Latin-1
! 406: * char, then the encoding converter is plugged in automatically.
! 407: *
! 408: * Returns the current char value and its length
! 409: */
! 410:
! 411: static int
! 412: htmlCurrentChar(xmlParserCtxtPtr ctxt, int *len) {
! 413: if (ctxt->instate == XML_PARSER_EOF)
! 414: return(0);
! 415:
! 416: if (ctxt->token != 0) {
! 417: *len = 0;
! 418: return(ctxt->token);
! 419: }
! 420: if (ctxt->charset == XML_CHAR_ENCODING_UTF8) {
! 421: /*
! 422: * We are supposed to handle UTF8, check it's valid
! 423: * From rfc2044: encoding of the Unicode values on UTF-8:
! 424: *
! 425: * UCS-4 range (hex.) UTF-8 octet sequence (binary)
! 426: * 0000 0000-0000 007F 0xxxxxxx
! 427: * 0000 0080-0000 07FF 110xxxxx 10xxxxxx
! 428: * 0000 0800-0000 FFFF 1110xxxx 10xxxxxx 10xxxxxx
! 429: *
! 430: * Check for the 0x110000 limit too
! 431: */
! 432: const unsigned char *cur = ctxt->input->cur;
! 433: unsigned char c;
! 434: unsigned int val;
! 435:
! 436: c = *cur;
! 437: if (c & 0x80) {
! 438: if (cur[1] == 0) {
! 439: xmlParserInputGrow(ctxt->input, INPUT_CHUNK);
! 440: cur = ctxt->input->cur;
! 441: }
! 442: if ((cur[1] & 0xc0) != 0x80)
! 443: goto encoding_error;
! 444: if ((c & 0xe0) == 0xe0) {
! 445:
! 446: if (cur[2] == 0) {
! 447: xmlParserInputGrow(ctxt->input, INPUT_CHUNK);
! 448: cur = ctxt->input->cur;
! 449: }
! 450: if ((cur[2] & 0xc0) != 0x80)
! 451: goto encoding_error;
! 452: if ((c & 0xf0) == 0xf0) {
! 453: if (cur[3] == 0) {
! 454: xmlParserInputGrow(ctxt->input, INPUT_CHUNK);
! 455: cur = ctxt->input->cur;
! 456: }
! 457: if (((c & 0xf8) != 0xf0) ||
! 458: ((cur[3] & 0xc0) != 0x80))
! 459: goto encoding_error;
! 460: /* 4-byte code */
! 461: *len = 4;
! 462: val = (cur[0] & 0x7) << 18;
! 463: val |= (cur[1] & 0x3f) << 12;
! 464: val |= (cur[2] & 0x3f) << 6;
! 465: val |= cur[3] & 0x3f;
! 466: } else {
! 467: /* 3-byte code */
! 468: *len = 3;
! 469: val = (cur[0] & 0xf) << 12;
! 470: val |= (cur[1] & 0x3f) << 6;
! 471: val |= cur[2] & 0x3f;
! 472: }
! 473: } else {
! 474: /* 2-byte code */
! 475: *len = 2;
! 476: val = (cur[0] & 0x1f) << 6;
! 477: val |= cur[1] & 0x3f;
! 478: }
! 479: if (!IS_CHAR(val)) {
! 480: htmlParseErrInt(ctxt, XML_ERR_INVALID_CHAR,
! 481: "Char 0x%X out of allowed range\n", val);
! 482: }
! 483: return(val);
! 484: } else {
! 485: if ((*ctxt->input->cur == 0) &&
! 486: (ctxt->input->cur < ctxt->input->end)) {
! 487: htmlParseErrInt(ctxt, XML_ERR_INVALID_CHAR,
! 488: "Char 0x%X out of allowed range\n", 0);
! 489: *len = 1;
! 490: return(' ');
! 491: }
! 492: /* 1-byte code */
! 493: *len = 1;
! 494: return((int) *ctxt->input->cur);
! 495: }
! 496: }
! 497: /*
! 498: * Assume it's a fixed length encoding (1) with
! 499: * a compatible encoding for the ASCII set, since
! 500: * XML constructs only use < 128 chars
! 501: */
! 502: *len = 1;
! 503: if ((int) *ctxt->input->cur < 0x80)
! 504: return((int) *ctxt->input->cur);
! 505:
! 506: /*
! 507: * Humm this is bad, do an automatic flow conversion
! 508: */
! 509: {
! 510: xmlChar * guess;
! 511: xmlCharEncodingHandlerPtr handler;
! 512:
! 513: guess = htmlFindEncoding(ctxt);
! 514: if (guess == NULL) {
! 515: xmlSwitchEncoding(ctxt, XML_CHAR_ENCODING_8859_1);
! 516: } else {
! 517: if (ctxt->input->encoding != NULL)
! 518: xmlFree((xmlChar *) ctxt->input->encoding);
! 519: ctxt->input->encoding = guess;
! 520: handler = xmlFindCharEncodingHandler((const char *) guess);
! 521: if (handler != NULL) {
! 522: xmlSwitchToEncoding(ctxt, handler);
! 523: } else {
! 524: htmlParseErr(ctxt, XML_ERR_INVALID_ENCODING,
! 525: "Unsupported encoding %s", guess, NULL);
! 526: }
! 527: }
! 528: ctxt->charset = XML_CHAR_ENCODING_UTF8;
! 529: }
! 530:
! 531: return(xmlCurrentChar(ctxt, len));
! 532:
! 533: encoding_error:
! 534: /*
! 535: * If we detect an UTF8 error that probably mean that the
! 536: * input encoding didn't get properly advertized in the
! 537: * declaration header. Report the error and switch the encoding
! 538: * to ISO-Latin-1 (if you don't like this policy, just declare the
! 539: * encoding !)
! 540: */
! 541: {
! 542: char buffer[150];
! 543:
! 544: if (ctxt->input->end - ctxt->input->cur >= 4) {
! 545: snprintf(buffer, 149, "Bytes: 0x%02X 0x%02X 0x%02X 0x%02X\n",
! 546: ctxt->input->cur[0], ctxt->input->cur[1],
! 547: ctxt->input->cur[2], ctxt->input->cur[3]);
! 548: } else {
! 549: snprintf(buffer, 149, "Bytes: 0x%02X\n", ctxt->input->cur[0]);
! 550: }
! 551: htmlParseErr(ctxt, XML_ERR_INVALID_ENCODING,
! 552: "Input is not proper UTF-8, indicate encoding !\n",
! 553: BAD_CAST buffer, NULL);
! 554: }
! 555:
! 556: ctxt->charset = XML_CHAR_ENCODING_8859_1;
! 557: *len = 1;
! 558: return((int) *ctxt->input->cur);
! 559: }
! 560:
! 561: /**
! 562: * htmlSkipBlankChars:
! 563: * @ctxt: the HTML parser context
! 564: *
! 565: * skip all blanks character found at that point in the input streams.
! 566: *
! 567: * Returns the number of space chars skipped
! 568: */
! 569:
! 570: static int
! 571: htmlSkipBlankChars(xmlParserCtxtPtr ctxt) {
! 572: int res = 0;
! 573:
! 574: while (IS_BLANK_CH(*(ctxt->input->cur))) {
! 575: if ((*ctxt->input->cur == 0) &&
! 576: (xmlParserInputGrow(ctxt->input, INPUT_CHUNK) <= 0)) {
! 577: xmlPopInput(ctxt);
! 578: } else {
! 579: if (*(ctxt->input->cur) == '\n') {
! 580: ctxt->input->line++; ctxt->input->col = 1;
! 581: } else ctxt->input->col++;
! 582: ctxt->input->cur++;
! 583: ctxt->nbChars++;
! 584: if (*ctxt->input->cur == 0)
! 585: xmlParserInputGrow(ctxt->input, INPUT_CHUNK);
! 586: }
! 587: res++;
! 588: }
! 589: return(res);
! 590: }
! 591:
! 592:
! 593:
! 594: /************************************************************************
! 595: * *
! 596: * The list of HTML elements and their properties *
! 597: * *
! 598: ************************************************************************/
! 599:
! 600: /*
! 601: * Start Tag: 1 means the start tag can be ommited
! 602: * End Tag: 1 means the end tag can be ommited
! 603: * 2 means it's forbidden (empty elements)
! 604: * 3 means the tag is stylistic and should be closed easily
! 605: * Depr: this element is deprecated
! 606: * DTD: 1 means that this element is valid only in the Loose DTD
! 607: * 2 means that this element is valid only in the Frameset DTD
! 608: *
! 609: * Name,Start Tag,End Tag,Save End,Empty,Deprecated,DTD,inline,Description
! 610: , subElements , impliedsubelt , Attributes, userdata
! 611: */
! 612:
! 613: /* Definitions and a couple of vars for HTML Elements */
! 614:
! 615: #define FONTSTYLE "tt", "i", "b", "u", "s", "strike", "big", "small"
! 616: #define NB_FONTSTYLE 8
! 617: #define PHRASE "em", "strong", "dfn", "code", "samp", "kbd", "var", "cite", "abbr", "acronym"
! 618: #define NB_PHRASE 10
! 619: #define SPECIAL "a", "img", "applet", "embed", "object", "font", "basefont", "br", "script", "map", "q", "sub", "sup", "span", "bdo", "iframe"
! 620: #define NB_SPECIAL 16
! 621: #define INLINE FONTSTYLE, PHRASE, SPECIAL, FORMCTRL
! 622: #define NB_INLINE NB_PCDATA + NB_FONTSTYLE + NB_PHRASE + NB_SPECIAL + NB_FORMCTRL
! 623: #define BLOCK HEADING, LIST, "pre", "p", "dl", "div", "center", "noscript", "noframes", "blockquote", "form", "isindex", "hr", "table", "fieldset", "address"
! 624: #define NB_BLOCK NB_HEADING + NB_LIST + 14
! 625: #define FORMCTRL "input", "select", "textarea", "label", "button"
! 626: #define NB_FORMCTRL 5
! 627: #define PCDATA
! 628: #define NB_PCDATA 0
! 629: #define HEADING "h1", "h2", "h3", "h4", "h5", "h6"
! 630: #define NB_HEADING 6
! 631: #define LIST "ul", "ol", "dir", "menu"
! 632: #define NB_LIST 4
! 633: #define MODIFIER
! 634: #define NB_MODIFIER 0
! 635: #define FLOW BLOCK,INLINE
! 636: #define NB_FLOW NB_BLOCK + NB_INLINE
! 637: #define EMPTY NULL
! 638:
! 639:
! 640: static const char* const html_flow[] = { FLOW, NULL } ;
! 641: static const char* const html_inline[] = { INLINE, NULL } ;
! 642:
! 643: /* placeholders: elts with content but no subelements */
! 644: static const char* const html_pcdata[] = { NULL } ;
! 645: #define html_cdata html_pcdata
! 646:
! 647:
! 648: /* ... and for HTML Attributes */
! 649:
! 650: #define COREATTRS "id", "class", "style", "title"
! 651: #define NB_COREATTRS 4
! 652: #define I18N "lang", "dir"
! 653: #define NB_I18N 2
! 654: #define EVENTS "onclick", "ondblclick", "onmousedown", "onmouseup", "onmouseover", "onmouseout", "onkeypress", "onkeydown", "onkeyup"
! 655: #define NB_EVENTS 9
! 656: #define ATTRS COREATTRS,I18N,EVENTS
! 657: #define NB_ATTRS NB_NB_COREATTRS + NB_I18N + NB_EVENTS
! 658: #define CELLHALIGN "align", "char", "charoff"
! 659: #define NB_CELLHALIGN 3
! 660: #define CELLVALIGN "valign"
! 661: #define NB_CELLVALIGN 1
! 662:
! 663: static const char* const html_attrs[] = { ATTRS, NULL } ;
! 664: static const char* const core_i18n_attrs[] = { COREATTRS, I18N, NULL } ;
! 665: static const char* const core_attrs[] = { COREATTRS, NULL } ;
! 666: static const char* const i18n_attrs[] = { I18N, NULL } ;
! 667:
! 668:
! 669: /* Other declarations that should go inline ... */
! 670: static const char* const a_attrs[] = { ATTRS, "charset", "type", "name",
! 671: "href", "hreflang", "rel", "rev", "accesskey", "shape", "coords",
! 672: "tabindex", "onfocus", "onblur", NULL } ;
! 673: static const char* const target_attr[] = { "target", NULL } ;
! 674: static const char* const rows_cols_attr[] = { "rows", "cols", NULL } ;
! 675: static const char* const alt_attr[] = { "alt", NULL } ;
! 676: static const char* const src_alt_attrs[] = { "src", "alt", NULL } ;
! 677: static const char* const href_attrs[] = { "href", NULL } ;
! 678: static const char* const clear_attrs[] = { "clear", NULL } ;
! 679: static const char* const inline_p[] = { INLINE, "p", NULL } ;
! 680:
! 681: static const char* const flow_param[] = { FLOW, "param", NULL } ;
! 682: static const char* const applet_attrs[] = { COREATTRS , "codebase",
! 683: "archive", "alt", "name", "height", "width", "align",
! 684: "hspace", "vspace", NULL } ;
! 685: static const char* const area_attrs[] = { "shape", "coords", "href", "nohref",
! 686: "tabindex", "accesskey", "onfocus", "onblur", NULL } ;
! 687: static const char* const basefont_attrs[] =
! 688: { "id", "size", "color", "face", NULL } ;
! 689: static const char* const quote_attrs[] = { ATTRS, "cite", NULL } ;
! 690: static const char* const body_contents[] = { FLOW, "ins", "del", NULL } ;
! 691: static const char* const body_attrs[] = { ATTRS, "onload", "onunload", NULL } ;
! 692: static const char* const body_depr[] = { "background", "bgcolor", "text",
! 693: "link", "vlink", "alink", NULL } ;
! 694: static const char* const button_attrs[] = { ATTRS, "name", "value", "type",
! 695: "disabled", "tabindex", "accesskey", "onfocus", "onblur", NULL } ;
! 696:
! 697:
! 698: static const char* const col_attrs[] = { ATTRS, "span", "width", CELLHALIGN, CELLVALIGN, NULL } ;
! 699: static const char* const col_elt[] = { "col", NULL } ;
! 700: static const char* const edit_attrs[] = { ATTRS, "datetime", "cite", NULL } ;
! 701: static const char* const compact_attrs[] = { ATTRS, "compact", NULL } ;
! 702: static const char* const dl_contents[] = { "dt", "dd", NULL } ;
! 703: static const char* const compact_attr[] = { "compact", NULL } ;
! 704: static const char* const label_attr[] = { "label", NULL } ;
! 705: static const char* const fieldset_contents[] = { FLOW, "legend" } ;
! 706: static const char* const font_attrs[] = { COREATTRS, I18N, "size", "color", "face" , NULL } ;
! 707: static const char* const form_contents[] = { HEADING, LIST, INLINE, "pre", "p", "div", "center", "noscript", "noframes", "blockquote", "isindex", "hr", "table", "fieldset", "address", NULL } ;
! 708: static const char* const form_attrs[] = { ATTRS, "method", "enctype", "accept", "name", "onsubmit", "onreset", "accept-charset", NULL } ;
! 709: static const char* const frame_attrs[] = { COREATTRS, "longdesc", "name", "src", "frameborder", "marginwidth", "marginheight", "noresize", "scrolling" , NULL } ;
! 710: static const char* const frameset_attrs[] = { COREATTRS, "rows", "cols", "onload", "onunload", NULL } ;
! 711: static const char* const frameset_contents[] = { "frameset", "frame", "noframes", NULL } ;
! 712: static const char* const head_attrs[] = { I18N, "profile", NULL } ;
! 713: static const char* const head_contents[] = { "title", "isindex", "base", "script", "style", "meta", "link", "object", NULL } ;
! 714: static const char* const hr_depr[] = { "align", "noshade", "size", "width", NULL } ;
! 715: static const char* const version_attr[] = { "version", NULL } ;
! 716: static const char* const html_content[] = { "head", "body", "frameset", NULL } ;
! 717: static const char* const iframe_attrs[] = { COREATTRS, "longdesc", "name", "src", "frameborder", "marginwidth", "marginheight", "scrolling", "align", "height", "width", NULL } ;
! 718: static const char* const img_attrs[] = { ATTRS, "longdesc", "name", "height", "width", "usemap", "ismap", NULL } ;
! 719: static const char* const embed_attrs[] = { COREATTRS, "align", "alt", "border", "code", "codebase", "frameborder", "height", "hidden", "hspace", "name", "palette", "pluginspace", "pluginurl", "src", "type", "units", "vspace", "width", NULL } ;
! 720: static const char* const input_attrs[] = { ATTRS, "type", "name", "value", "checked", "disabled", "readonly", "size", "maxlength", "src", "alt", "usemap", "ismap", "tabindex", "accesskey", "onfocus", "onblur", "onselect", "onchange", "accept", NULL } ;
! 721: static const char* const prompt_attrs[] = { COREATTRS, I18N, "prompt", NULL } ;
! 722: static const char* const label_attrs[] = { ATTRS, "for", "accesskey", "onfocus", "onblur", NULL } ;
! 723: static const char* const legend_attrs[] = { ATTRS, "accesskey", NULL } ;
! 724: static const char* const align_attr[] = { "align", NULL } ;
! 725: static const char* const link_attrs[] = { ATTRS, "charset", "href", "hreflang", "type", "rel", "rev", "media", NULL } ;
! 726: static const char* const map_contents[] = { BLOCK, "area", NULL } ;
! 727: static const char* const name_attr[] = { "name", NULL } ;
! 728: static const char* const action_attr[] = { "action", NULL } ;
! 729: static const char* const blockli_elt[] = { BLOCK, "li", NULL } ;
! 730: static const char* const meta_attrs[] = { I18N, "http-equiv", "name", "scheme", NULL } ;
! 731: static const char* const content_attr[] = { "content", NULL } ;
! 732: static const char* const type_attr[] = { "type", NULL } ;
! 733: static const char* const noframes_content[] = { "body", FLOW MODIFIER, NULL } ;
! 734: static const char* const object_contents[] = { FLOW, "param", NULL } ;
! 735: static const char* const object_attrs[] = { ATTRS, "declare", "classid", "codebase", "data", "type", "codetype", "archive", "standby", "height", "width", "usemap", "name", "tabindex", NULL } ;
! 736: static const char* const object_depr[] = { "align", "border", "hspace", "vspace", NULL } ;
! 737: static const char* const ol_attrs[] = { "type", "compact", "start", NULL} ;
! 738: static const char* const option_elt[] = { "option", NULL } ;
! 739: static const char* const optgroup_attrs[] = { ATTRS, "disabled", NULL } ;
! 740: static const char* const option_attrs[] = { ATTRS, "disabled", "label", "selected", "value", NULL } ;
! 741: static const char* const param_attrs[] = { "id", "value", "valuetype", "type", NULL } ;
! 742: static const char* const width_attr[] = { "width", NULL } ;
! 743: static const char* const pre_content[] = { PHRASE, "tt", "i", "b", "u", "s", "strike", "a", "br", "script", "map", "q", "span", "bdo", "iframe", NULL } ;
! 744: static const char* const script_attrs[] = { "charset", "src", "defer", "event", "for", NULL } ;
! 745: static const char* const language_attr[] = { "language", NULL } ;
! 746: static const char* const select_content[] = { "optgroup", "option", NULL } ;
! 747: static const char* const select_attrs[] = { ATTRS, "name", "size", "multiple", "disabled", "tabindex", "onfocus", "onblur", "onchange", NULL } ;
! 748: static const char* const style_attrs[] = { I18N, "media", "title", NULL } ;
! 749: static const char* const table_attrs[] = { ATTRS, "summary", "width", "border", "frame", "rules", "cellspacing", "cellpadding", "datapagesize", NULL } ;
! 750: static const char* const table_depr[] = { "align", "bgcolor", NULL } ;
! 751: static const char* const table_contents[] = { "caption", "col", "colgroup", "thead", "tfoot", "tbody", "tr", NULL} ;
! 752: static const char* const tr_elt[] = { "tr", NULL } ;
! 753: static const char* const talign_attrs[] = { ATTRS, CELLHALIGN, CELLVALIGN, NULL} ;
! 754: static const char* const th_td_depr[] = { "nowrap", "bgcolor", "width", "height", NULL } ;
! 755: static const char* const th_td_attr[] = { ATTRS, "abbr", "axis", "headers", "scope", "rowspan", "colspan", CELLHALIGN, CELLVALIGN, NULL } ;
! 756: static const char* const textarea_attrs[] = { ATTRS, "name", "disabled", "readonly", "tabindex", "accesskey", "onfocus", "onblur", "onselect", "onchange", NULL } ;
! 757: static const char* const tr_contents[] = { "th", "td", NULL } ;
! 758: static const char* const bgcolor_attr[] = { "bgcolor", NULL } ;
! 759: static const char* const li_elt[] = { "li", NULL } ;
! 760: static const char* const ul_depr[] = { "type", "compact", NULL} ;
! 761: static const char* const dir_attr[] = { "dir", NULL} ;
! 762:
! 763: #define DECL (const char**)
! 764:
! 765: static const htmlElemDesc
! 766: html40ElementTable[] = {
! 767: { "a", 0, 0, 0, 0, 0, 0, 1, "anchor ",
! 768: DECL html_inline , NULL , DECL a_attrs , DECL target_attr, NULL
! 769: },
! 770: { "abbr", 0, 0, 0, 0, 0, 0, 1, "abbreviated form",
! 771: DECL html_inline , NULL , DECL html_attrs, NULL, NULL
! 772: },
! 773: { "acronym", 0, 0, 0, 0, 0, 0, 1, "",
! 774: DECL html_inline , NULL , DECL html_attrs, NULL, NULL
! 775: },
! 776: { "address", 0, 0, 0, 0, 0, 0, 0, "information on author ",
! 777: DECL inline_p , NULL , DECL html_attrs, NULL, NULL
! 778: },
! 779: { "applet", 0, 0, 0, 0, 1, 1, 2, "java applet ",
! 780: DECL flow_param , NULL , NULL , DECL applet_attrs, NULL
! 781: },
! 782: { "area", 0, 2, 2, 1, 0, 0, 0, "client-side image map area ",
! 783: EMPTY , NULL , DECL area_attrs , DECL target_attr, DECL alt_attr
! 784: },
! 785: { "b", 0, 3, 0, 0, 0, 0, 1, "bold text style",
! 786: DECL html_inline , NULL , DECL html_attrs, NULL, NULL
! 787: },
! 788: { "base", 0, 2, 2, 1, 0, 0, 0, "document base uri ",
! 789: EMPTY , NULL , NULL , DECL target_attr, DECL href_attrs
! 790: },
! 791: { "basefont", 0, 2, 2, 1, 1, 1, 1, "base font size " ,
! 792: EMPTY , NULL , NULL, DECL basefont_attrs, NULL
! 793: },
! 794: { "bdo", 0, 0, 0, 0, 0, 0, 1, "i18n bidi over-ride ",
! 795: DECL html_inline , NULL , DECL core_i18n_attrs, NULL, DECL dir_attr
! 796: },
! 797: { "big", 0, 3, 0, 0, 0, 0, 1, "large text style",
! 798: DECL html_inline , NULL , DECL html_attrs, NULL, NULL
! 799: },
! 800: { "blockquote", 0, 0, 0, 0, 0, 0, 0, "long quotation ",
! 801: DECL html_flow , NULL , DECL quote_attrs , NULL, NULL
! 802: },
! 803: { "body", 1, 1, 0, 0, 0, 0, 0, "document body ",
! 804: DECL body_contents , "div" , DECL body_attrs, DECL body_depr, NULL
! 805: },
! 806: { "br", 0, 2, 2, 1, 0, 0, 1, "forced line break ",
! 807: EMPTY , NULL , DECL core_attrs, DECL clear_attrs , NULL
! 808: },
! 809: { "button", 0, 0, 0, 0, 0, 0, 2, "push button ",
! 810: DECL html_flow MODIFIER , NULL , DECL button_attrs, NULL, NULL
! 811: },
! 812: { "caption", 0, 0, 0, 0, 0, 0, 0, "table caption ",
! 813: DECL html_inline , NULL , DECL html_attrs, NULL, NULL
! 814: },
! 815: { "center", 0, 3, 0, 0, 1, 1, 0, "shorthand for div align=center ",
! 816: DECL html_flow , NULL , NULL, DECL html_attrs, NULL
! 817: },
! 818: { "cite", 0, 0, 0, 0, 0, 0, 1, "citation",
! 819: DECL html_inline , NULL , DECL html_attrs, NULL, NULL
! 820: },
! 821: { "code", 0, 0, 0, 0, 0, 0, 1, "computer code fragment",
! 822: DECL html_inline , NULL , DECL html_attrs, NULL, NULL
! 823: },
! 824: { "col", 0, 2, 2, 1, 0, 0, 0, "table column ",
! 825: EMPTY , NULL , DECL col_attrs , NULL, NULL
! 826: },
! 827: { "colgroup", 0, 1, 0, 0, 0, 0, 0, "table column group ",
! 828: DECL col_elt , "col" , DECL col_attrs , NULL, NULL
! 829: },
! 830: { "dd", 0, 1, 0, 0, 0, 0, 0, "definition description ",
! 831: DECL html_flow , NULL , DECL html_attrs, NULL, NULL
! 832: },
! 833: { "del", 0, 0, 0, 0, 0, 0, 2, "deleted text ",
! 834: DECL html_flow , NULL , DECL edit_attrs , NULL, NULL
! 835: },
! 836: { "dfn", 0, 0, 0, 0, 0, 0, 1, "instance definition",
! 837: DECL html_inline , NULL , DECL html_attrs, NULL, NULL
! 838: },
! 839: { "dir", 0, 0, 0, 0, 1, 1, 0, "directory list",
! 840: DECL blockli_elt, "li" , NULL, DECL compact_attrs, NULL
! 841: },
! 842: { "div", 0, 0, 0, 0, 0, 0, 0, "generic language/style container",
! 843: DECL html_flow, NULL, DECL html_attrs, DECL align_attr, NULL
! 844: },
! 845: { "dl", 0, 0, 0, 0, 0, 0, 0, "definition list ",
! 846: DECL dl_contents , "dd" , DECL html_attrs, DECL compact_attr, NULL
! 847: },
! 848: { "dt", 0, 1, 0, 0, 0, 0, 0, "definition term ",
! 849: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 850: },
! 851: { "em", 0, 3, 0, 0, 0, 0, 1, "emphasis",
! 852: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 853: },
! 854: { "embed", 0, 1, 0, 0, 1, 1, 1, "generic embedded object ",
! 855: EMPTY, NULL, DECL embed_attrs, NULL, NULL
! 856: },
! 857: { "fieldset", 0, 0, 0, 0, 0, 0, 0, "form control group ",
! 858: DECL fieldset_contents , NULL, DECL html_attrs, NULL, NULL
! 859: },
! 860: { "font", 0, 3, 0, 0, 1, 1, 1, "local change to font ",
! 861: DECL html_inline, NULL, NULL, DECL font_attrs, NULL
! 862: },
! 863: { "form", 0, 0, 0, 0, 0, 0, 0, "interactive form ",
! 864: DECL form_contents, "fieldset", DECL form_attrs , DECL target_attr, DECL action_attr
! 865: },
! 866: { "frame", 0, 2, 2, 1, 0, 2, 0, "subwindow " ,
! 867: EMPTY, NULL, NULL, DECL frame_attrs, NULL
! 868: },
! 869: { "frameset", 0, 0, 0, 0, 0, 2, 0, "window subdivision" ,
! 870: DECL frameset_contents, "noframes" , NULL , DECL frameset_attrs, NULL
! 871: },
! 872: { "h1", 0, 0, 0, 0, 0, 0, 0, "heading ",
! 873: DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL
! 874: },
! 875: { "h2", 0, 0, 0, 0, 0, 0, 0, "heading ",
! 876: DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL
! 877: },
! 878: { "h3", 0, 0, 0, 0, 0, 0, 0, "heading ",
! 879: DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL
! 880: },
! 881: { "h4", 0, 0, 0, 0, 0, 0, 0, "heading ",
! 882: DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL
! 883: },
! 884: { "h5", 0, 0, 0, 0, 0, 0, 0, "heading ",
! 885: DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL
! 886: },
! 887: { "h6", 0, 0, 0, 0, 0, 0, 0, "heading ",
! 888: DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL
! 889: },
! 890: { "head", 1, 1, 0, 0, 0, 0, 0, "document head ",
! 891: DECL head_contents, NULL, DECL head_attrs, NULL, NULL
! 892: },
! 893: { "hr", 0, 2, 2, 1, 0, 0, 0, "horizontal rule " ,
! 894: EMPTY, NULL, DECL html_attrs, DECL hr_depr, NULL
! 895: },
! 896: { "html", 1, 1, 0, 0, 0, 0, 0, "document root element ",
! 897: DECL html_content , NULL , DECL i18n_attrs, DECL version_attr, NULL
! 898: },
! 899: { "i", 0, 3, 0, 0, 0, 0, 1, "italic text style",
! 900: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 901: },
! 902: { "iframe", 0, 0, 0, 0, 0, 1, 2, "inline subwindow ",
! 903: DECL html_flow, NULL, NULL, DECL iframe_attrs, NULL
! 904: },
! 905: { "img", 0, 2, 2, 1, 0, 0, 1, "embedded image ",
! 906: EMPTY, NULL, DECL img_attrs, DECL align_attr, DECL src_alt_attrs
! 907: },
! 908: { "input", 0, 2, 2, 1, 0, 0, 1, "form control ",
! 909: EMPTY, NULL, DECL input_attrs , DECL align_attr, NULL
! 910: },
! 911: { "ins", 0, 0, 0, 0, 0, 0, 2, "inserted text",
! 912: DECL html_flow, NULL, DECL edit_attrs, NULL, NULL
! 913: },
! 914: { "isindex", 0, 2, 2, 1, 1, 1, 0, "single line prompt ",
! 915: EMPTY, NULL, NULL, DECL prompt_attrs, NULL
! 916: },
! 917: { "kbd", 0, 0, 0, 0, 0, 0, 1, "text to be entered by the user",
! 918: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 919: },
! 920: { "label", 0, 0, 0, 0, 0, 0, 1, "form field label text ",
! 921: DECL html_inline MODIFIER, NULL, DECL label_attrs , NULL, NULL
! 922: },
! 923: { "legend", 0, 0, 0, 0, 0, 0, 0, "fieldset legend ",
! 924: DECL html_inline, NULL, DECL legend_attrs , DECL align_attr, NULL
! 925: },
! 926: { "li", 0, 1, 1, 0, 0, 0, 0, "list item ",
! 927: DECL html_flow, NULL, DECL html_attrs, NULL, NULL
! 928: },
! 929: { "link", 0, 2, 2, 1, 0, 0, 0, "a media-independent link ",
! 930: EMPTY, NULL, DECL link_attrs, DECL target_attr, NULL
! 931: },
! 932: { "map", 0, 0, 0, 0, 0, 0, 2, "client-side image map ",
! 933: DECL map_contents , NULL, DECL html_attrs , NULL, DECL name_attr
! 934: },
! 935: { "menu", 0, 0, 0, 0, 1, 1, 0, "menu list ",
! 936: DECL blockli_elt , NULL, NULL, DECL compact_attrs, NULL
! 937: },
! 938: { "meta", 0, 2, 2, 1, 0, 0, 0, "generic metainformation ",
! 939: EMPTY, NULL, DECL meta_attrs , NULL , DECL content_attr
! 940: },
! 941: { "noframes", 0, 0, 0, 0, 0, 2, 0, "alternate content container for non frame-based rendering ",
! 942: DECL noframes_content, "body" , DECL html_attrs, NULL, NULL
! 943: },
! 944: { "noscript", 0, 0, 0, 0, 0, 0, 0, "alternate content container for non script-based rendering ",
! 945: DECL html_flow, "div", DECL html_attrs, NULL, NULL
! 946: },
! 947: { "object", 0, 0, 0, 0, 0, 0, 2, "generic embedded object ",
! 948: DECL object_contents , "div" , DECL object_attrs, DECL object_depr, NULL
! 949: },
! 950: { "ol", 0, 0, 0, 0, 0, 0, 0, "ordered list ",
! 951: DECL li_elt , "li" , DECL html_attrs, DECL ol_attrs, NULL
! 952: },
! 953: { "optgroup", 0, 0, 0, 0, 0, 0, 0, "option group ",
! 954: DECL option_elt , "option", DECL optgroup_attrs, NULL, DECL label_attr
! 955: },
! 956: { "option", 0, 1, 0, 0, 0, 0, 0, "selectable choice " ,
! 957: DECL html_pcdata, NULL, DECL option_attrs, NULL, NULL
! 958: },
! 959: { "p", 0, 1, 0, 0, 0, 0, 0, "paragraph ",
! 960: DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL
! 961: },
! 962: { "param", 0, 2, 2, 1, 0, 0, 0, "named property value ",
! 963: EMPTY, NULL, DECL param_attrs, NULL, DECL name_attr
! 964: },
! 965: { "pre", 0, 0, 0, 0, 0, 0, 0, "preformatted text ",
! 966: DECL pre_content, NULL, DECL html_attrs, DECL width_attr, NULL
! 967: },
! 968: { "q", 0, 0, 0, 0, 0, 0, 1, "short inline quotation ",
! 969: DECL html_inline, NULL, DECL quote_attrs, NULL, NULL
! 970: },
! 971: { "s", 0, 3, 0, 0, 1, 1, 1, "strike-through text style",
! 972: DECL html_inline, NULL, NULL, DECL html_attrs, NULL
! 973: },
! 974: { "samp", 0, 0, 0, 0, 0, 0, 1, "sample program output, scripts, etc.",
! 975: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 976: },
! 977: { "script", 0, 0, 0, 0, 0, 0, 2, "script statements ",
! 978: DECL html_cdata, NULL, DECL script_attrs, DECL language_attr, DECL type_attr
! 979: },
! 980: { "select", 0, 0, 0, 0, 0, 0, 1, "option selector ",
! 981: DECL select_content, NULL, DECL select_attrs, NULL, NULL
! 982: },
! 983: { "small", 0, 3, 0, 0, 0, 0, 1, "small text style",
! 984: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 985: },
! 986: { "span", 0, 0, 0, 0, 0, 0, 1, "generic language/style container ",
! 987: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 988: },
! 989: { "strike", 0, 3, 0, 0, 1, 1, 1, "strike-through text",
! 990: DECL html_inline, NULL, NULL, DECL html_attrs, NULL
! 991: },
! 992: { "strong", 0, 3, 0, 0, 0, 0, 1, "strong emphasis",
! 993: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 994: },
! 995: { "style", 0, 0, 0, 0, 0, 0, 0, "style info ",
! 996: DECL html_cdata, NULL, DECL style_attrs, NULL, DECL type_attr
! 997: },
! 998: { "sub", 0, 3, 0, 0, 0, 0, 1, "subscript",
! 999: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 1000: },
! 1001: { "sup", 0, 3, 0, 0, 0, 0, 1, "superscript ",
! 1002: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 1003: },
! 1004: { "table", 0, 0, 0, 0, 0, 0, 0, "",
! 1005: DECL table_contents , "tr" , DECL table_attrs , DECL table_depr, NULL
! 1006: },
! 1007: { "tbody", 1, 0, 0, 0, 0, 0, 0, "table body ",
! 1008: DECL tr_elt , "tr" , DECL talign_attrs, NULL, NULL
! 1009: },
! 1010: { "td", 0, 0, 0, 0, 0, 0, 0, "table data cell",
! 1011: DECL html_flow, NULL, DECL th_td_attr, DECL th_td_depr, NULL
! 1012: },
! 1013: { "textarea", 0, 0, 0, 0, 0, 0, 1, "multi-line text field ",
! 1014: DECL html_pcdata, NULL, DECL textarea_attrs, NULL, DECL rows_cols_attr
! 1015: },
! 1016: { "tfoot", 0, 1, 0, 0, 0, 0, 0, "table footer ",
! 1017: DECL tr_elt , "tr" , DECL talign_attrs, NULL, NULL
! 1018: },
! 1019: { "th", 0, 1, 0, 0, 0, 0, 0, "table header cell",
! 1020: DECL html_flow, NULL, DECL th_td_attr, DECL th_td_depr, NULL
! 1021: },
! 1022: { "thead", 0, 1, 0, 0, 0, 0, 0, "table header ",
! 1023: DECL tr_elt , "tr" , DECL talign_attrs, NULL, NULL
! 1024: },
! 1025: { "title", 0, 0, 0, 0, 0, 0, 0, "document title ",
! 1026: DECL html_pcdata, NULL, DECL i18n_attrs, NULL, NULL
! 1027: },
! 1028: { "tr", 0, 0, 0, 0, 0, 0, 0, "table row ",
! 1029: DECL tr_contents , "td" , DECL talign_attrs, DECL bgcolor_attr, NULL
! 1030: },
! 1031: { "tt", 0, 3, 0, 0, 0, 0, 1, "teletype or monospaced text style",
! 1032: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 1033: },
! 1034: { "u", 0, 3, 0, 0, 1, 1, 1, "underlined text style",
! 1035: DECL html_inline, NULL, NULL, DECL html_attrs, NULL
! 1036: },
! 1037: { "ul", 0, 0, 0, 0, 0, 0, 0, "unordered list ",
! 1038: DECL li_elt , "li" , DECL html_attrs, DECL ul_depr, NULL
! 1039: },
! 1040: { "var", 0, 0, 0, 0, 0, 0, 1, "instance of a variable or program argument",
! 1041: DECL html_inline, NULL, DECL html_attrs, NULL, NULL
! 1042: }
! 1043: };
! 1044:
! 1045: /*
! 1046: * start tags that imply the end of current element
! 1047: */
! 1048: static const char * const htmlStartClose[] = {
! 1049: "form", "form", "p", "hr", "h1", "h2", "h3", "h4", "h5", "h6",
! 1050: "dl", "ul", "ol", "menu", "dir", "address", "pre",
! 1051: "listing", "xmp", "head", NULL,
! 1052: "head", "p", NULL,
! 1053: "title", "p", NULL,
! 1054: "body", "head", "style", "link", "title", "p", NULL,
! 1055: "frameset", "head", "style", "link", "title", "p", NULL,
! 1056: "li", "p", "h1", "h2", "h3", "h4", "h5", "h6", "dl", "address",
! 1057: "pre", "listing", "xmp", "head", "li", NULL,
! 1058: "hr", "p", "head", NULL,
! 1059: "h1", "p", "head", NULL,
! 1060: "h2", "p", "head", NULL,
! 1061: "h3", "p", "head", NULL,
! 1062: "h4", "p", "head", NULL,
! 1063: "h5", "p", "head", NULL,
! 1064: "h6", "p", "head", NULL,
! 1065: "dir", "p", "head", NULL,
! 1066: "address", "p", "head", "ul", NULL,
! 1067: "pre", "p", "head", "ul", NULL,
! 1068: "listing", "p", "head", NULL,
! 1069: "xmp", "p", "head", NULL,
! 1070: "blockquote", "p", "head", NULL,
! 1071: "dl", "p", "dt", "menu", "dir", "address", "pre", "listing",
! 1072: "xmp", "head", NULL,
! 1073: "dt", "p", "menu", "dir", "address", "pre", "listing", "xmp",
! 1074: "head", "dd", NULL,
! 1075: "dd", "p", "menu", "dir", "address", "pre", "listing", "xmp",
! 1076: "head", "dt", NULL,
! 1077: "ul", "p", "head", "ol", "menu", "dir", "address", "pre",
! 1078: "listing", "xmp", NULL,
! 1079: "ol", "p", "head", "ul", NULL,
! 1080: "menu", "p", "head", "ul", NULL,
! 1081: "p", "p", "head", "h1", "h2", "h3", "h4", "h5", "h6", FONTSTYLE, NULL,
! 1082: "div", "p", "head", NULL,
! 1083: "noscript", "p", "head", NULL,
! 1084: "center", "font", "b", "i", "p", "head", NULL,
! 1085: "a", "a", NULL,
! 1086: "caption", "p", NULL,
! 1087: "colgroup", "caption", "colgroup", "col", "p", NULL,
! 1088: "col", "caption", "col", "p", NULL,
! 1089: "table", "p", "head", "h1", "h2", "h3", "h4", "h5", "h6", "pre",
! 1090: "listing", "xmp", "a", NULL,
! 1091: "th", "th", "td", "p", "span", "font", "a", "b", "i", "u", NULL,
! 1092: "td", "th", "td", "p", "span", "font", "a", "b", "i", "u", NULL,
! 1093: "tr", "th", "td", "tr", "caption", "col", "colgroup", "p", NULL,
! 1094: "thead", "caption", "col", "colgroup", NULL,
! 1095: "tfoot", "th", "td", "tr", "caption", "col", "colgroup", "thead",
! 1096: "tbody", "p", NULL,
! 1097: "tbody", "th", "td", "tr", "caption", "col", "colgroup", "thead",
! 1098: "tfoot", "tbody", "p", NULL,
! 1099: "optgroup", "option", NULL,
! 1100: "option", "option", NULL,
! 1101: "fieldset", "legend", "p", "head", "h1", "h2", "h3", "h4", "h5", "h6",
! 1102: "pre", "listing", "xmp", "a", NULL,
! 1103: NULL
! 1104: };
! 1105:
! 1106: /*
! 1107: * The list of HTML elements which are supposed not to have
! 1108: * CDATA content and where a p element will be implied
! 1109: *
! 1110: * TODO: extend that list by reading the HTML SGML DTD on
! 1111: * implied paragraph
! 1112: */
! 1113: static const char *const htmlNoContentElements[] = {
! 1114: "html",
! 1115: "head",
! 1116: NULL
! 1117: };
! 1118:
! 1119: /*
! 1120: * The list of HTML attributes which are of content %Script;
! 1121: * NOTE: when adding ones, check htmlIsScriptAttribute() since
! 1122: * it assumes the name starts with 'on'
! 1123: */
! 1124: static const char *const htmlScriptAttributes[] = {
! 1125: "onclick",
! 1126: "ondblclick",
! 1127: "onmousedown",
! 1128: "onmouseup",
! 1129: "onmouseover",
! 1130: "onmousemove",
! 1131: "onmouseout",
! 1132: "onkeypress",
! 1133: "onkeydown",
! 1134: "onkeyup",
! 1135: "onload",
! 1136: "onunload",
! 1137: "onfocus",
! 1138: "onblur",
! 1139: "onsubmit",
! 1140: "onrest",
! 1141: "onchange",
! 1142: "onselect"
! 1143: };
! 1144:
! 1145: /*
! 1146: * This table is used by the htmlparser to know what to do with
! 1147: * broken html pages. By assigning different priorities to different
! 1148: * elements the parser can decide how to handle extra endtags.
! 1149: * Endtags are only allowed to close elements with lower or equal
! 1150: * priority.
! 1151: */
! 1152:
! 1153: typedef struct {
! 1154: const char *name;
! 1155: int priority;
! 1156: } elementPriority;
! 1157:
! 1158: static const elementPriority htmlEndPriority[] = {
! 1159: {"div", 150},
! 1160: {"td", 160},
! 1161: {"th", 160},
! 1162: {"tr", 170},
! 1163: {"thead", 180},
! 1164: {"tbody", 180},
! 1165: {"tfoot", 180},
! 1166: {"table", 190},
! 1167: {"head", 200},
! 1168: {"body", 200},
! 1169: {"html", 220},
! 1170: {NULL, 100} /* Default priority */
! 1171: };
! 1172:
! 1173: static const char** htmlStartCloseIndex[100];
! 1174: static int htmlStartCloseIndexinitialized = 0;
! 1175:
! 1176: /************************************************************************
! 1177: * *
! 1178: * functions to handle HTML specific data *
! 1179: * *
! 1180: ************************************************************************/
! 1181:
! 1182: /**
! 1183: * htmlInitAutoClose:
! 1184: *
! 1185: * Initialize the htmlStartCloseIndex for fast lookup of closing tags names.
! 1186: * This is not reentrant. Call xmlInitParser() once before processing in
! 1187: * case of use in multithreaded programs.
! 1188: */
! 1189: void
! 1190: htmlInitAutoClose(void) {
! 1191: int indx, i = 0;
! 1192:
! 1193: if (htmlStartCloseIndexinitialized) return;
! 1194:
! 1195: for (indx = 0;indx < 100;indx ++) htmlStartCloseIndex[indx] = NULL;
! 1196: indx = 0;
! 1197: while ((htmlStartClose[i] != NULL) && (indx < 100 - 1)) {
! 1198: htmlStartCloseIndex[indx++] = (const char**) &htmlStartClose[i];
! 1199: while (htmlStartClose[i] != NULL) i++;
! 1200: i++;
! 1201: }
! 1202: htmlStartCloseIndexinitialized = 1;
! 1203: }
! 1204:
! 1205: /**
! 1206: * htmlTagLookup:
! 1207: * @tag: The tag name in lowercase
! 1208: *
! 1209: * Lookup the HTML tag in the ElementTable
! 1210: *
! 1211: * Returns the related htmlElemDescPtr or NULL if not found.
! 1212: */
! 1213: const htmlElemDesc *
! 1214: htmlTagLookup(const xmlChar *tag) {
! 1215: unsigned int i;
! 1216:
! 1217: for (i = 0; i < (sizeof(html40ElementTable) /
! 1218: sizeof(html40ElementTable[0]));i++) {
! 1219: if (!xmlStrcasecmp(tag, BAD_CAST html40ElementTable[i].name))
! 1220: return((htmlElemDescPtr) &html40ElementTable[i]);
! 1221: }
! 1222: return(NULL);
! 1223: }
! 1224:
! 1225: /**
! 1226: * htmlGetEndPriority:
! 1227: * @name: The name of the element to look up the priority for.
! 1228: *
! 1229: * Return value: The "endtag" priority.
! 1230: **/
! 1231: static int
! 1232: htmlGetEndPriority (const xmlChar *name) {
! 1233: int i = 0;
! 1234:
! 1235: while ((htmlEndPriority[i].name != NULL) &&
! 1236: (!xmlStrEqual((const xmlChar *)htmlEndPriority[i].name, name)))
! 1237: i++;
! 1238:
! 1239: return(htmlEndPriority[i].priority);
! 1240: }
! 1241:
! 1242:
! 1243: /**
! 1244: * htmlCheckAutoClose:
! 1245: * @newtag: The new tag name
! 1246: * @oldtag: The old tag name
! 1247: *
! 1248: * Checks whether the new tag is one of the registered valid tags for
! 1249: * closing old.
! 1250: * Initialize the htmlStartCloseIndex for fast lookup of closing tags names.
! 1251: *
! 1252: * Returns 0 if no, 1 if yes.
! 1253: */
! 1254: static int
! 1255: htmlCheckAutoClose(const xmlChar * newtag, const xmlChar * oldtag)
! 1256: {
! 1257: int i, indx;
! 1258: const char **closed = NULL;
! 1259:
! 1260: if (htmlStartCloseIndexinitialized == 0)
! 1261: htmlInitAutoClose();
! 1262:
! 1263: /* inefficient, but not a big deal */
! 1264: for (indx = 0; indx < 100; indx++) {
! 1265: closed = htmlStartCloseIndex[indx];
! 1266: if (closed == NULL)
! 1267: return (0);
! 1268: if (xmlStrEqual(BAD_CAST * closed, newtag))
! 1269: break;
! 1270: }
! 1271:
! 1272: i = closed - htmlStartClose;
! 1273: i++;
! 1274: while (htmlStartClose[i] != NULL) {
! 1275: if (xmlStrEqual(BAD_CAST htmlStartClose[i], oldtag)) {
! 1276: return (1);
! 1277: }
! 1278: i++;
! 1279: }
! 1280: return (0);
! 1281: }
! 1282:
! 1283: /**
! 1284: * htmlAutoCloseOnClose:
! 1285: * @ctxt: an HTML parser context
! 1286: * @newtag: The new tag name
! 1287: * @force: force the tag closure
! 1288: *
! 1289: * The HTML DTD allows an ending tag to implicitly close other tags.
! 1290: */
! 1291: static void
! 1292: htmlAutoCloseOnClose(htmlParserCtxtPtr ctxt, const xmlChar * newtag)
! 1293: {
! 1294: const htmlElemDesc *info;
! 1295: int i, priority;
! 1296:
! 1297: priority = htmlGetEndPriority(newtag);
! 1298:
! 1299: for (i = (ctxt->nameNr - 1); i >= 0; i--) {
! 1300:
! 1301: if (xmlStrEqual(newtag, ctxt->nameTab[i]))
! 1302: break;
! 1303: /*
! 1304: * A missplaced endtag can only close elements with lower
! 1305: * or equal priority, so if we find an element with higher
! 1306: * priority before we find an element with
! 1307: * matching name, we just ignore this endtag
! 1308: */
! 1309: if (htmlGetEndPriority(ctxt->nameTab[i]) > priority)
! 1310: return;
! 1311: }
! 1312: if (i < 0)
! 1313: return;
! 1314:
! 1315: while (!xmlStrEqual(newtag, ctxt->name)) {
! 1316: info = htmlTagLookup(ctxt->name);
! 1317: if ((info != NULL) && (info->endTag == 3)) {
! 1318: htmlParseErr(ctxt, XML_ERR_TAG_NAME_MISMATCH,
! 1319: "Opening and ending tag mismatch: %s and %s\n",
! 1320: newtag, ctxt->name);
! 1321: }
! 1322: if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
! 1323: ctxt->sax->endElement(ctxt->userData, ctxt->name);
! 1324: htmlnamePop(ctxt);
! 1325: }
! 1326: }
! 1327:
! 1328: /**
! 1329: * htmlAutoCloseOnEnd:
! 1330: * @ctxt: an HTML parser context
! 1331: *
! 1332: * Close all remaining tags at the end of the stream
! 1333: */
! 1334: static void
! 1335: htmlAutoCloseOnEnd(htmlParserCtxtPtr ctxt)
! 1336: {
! 1337: int i;
! 1338:
! 1339: if (ctxt->nameNr == 0)
! 1340: return;
! 1341: for (i = (ctxt->nameNr - 1); i >= 0; i--) {
! 1342: if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
! 1343: ctxt->sax->endElement(ctxt->userData, ctxt->name);
! 1344: htmlnamePop(ctxt);
! 1345: }
! 1346: }
! 1347:
! 1348: /**
! 1349: * htmlAutoClose:
! 1350: * @ctxt: an HTML parser context
! 1351: * @newtag: The new tag name or NULL
! 1352: *
! 1353: * The HTML DTD allows a tag to implicitly close other tags.
! 1354: * The list is kept in htmlStartClose array. This function is
! 1355: * called when a new tag has been detected and generates the
! 1356: * appropriates closes if possible/needed.
! 1357: * If newtag is NULL this mean we are at the end of the resource
! 1358: * and we should check
! 1359: */
! 1360: static void
! 1361: htmlAutoClose(htmlParserCtxtPtr ctxt, const xmlChar * newtag)
! 1362: {
! 1363: while ((newtag != NULL) && (ctxt->name != NULL) &&
! 1364: (htmlCheckAutoClose(newtag, ctxt->name))) {
! 1365: if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
! 1366: ctxt->sax->endElement(ctxt->userData, ctxt->name);
! 1367: htmlnamePop(ctxt);
! 1368: }
! 1369: if (newtag == NULL) {
! 1370: htmlAutoCloseOnEnd(ctxt);
! 1371: return;
! 1372: }
! 1373: while ((newtag == NULL) && (ctxt->name != NULL) &&
! 1374: ((xmlStrEqual(ctxt->name, BAD_CAST "head")) ||
! 1375: (xmlStrEqual(ctxt->name, BAD_CAST "body")) ||
! 1376: (xmlStrEqual(ctxt->name, BAD_CAST "html")))) {
! 1377: if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
! 1378: ctxt->sax->endElement(ctxt->userData, ctxt->name);
! 1379: htmlnamePop(ctxt);
! 1380: }
! 1381: }
! 1382:
! 1383: /**
! 1384: * htmlAutoCloseTag:
! 1385: * @doc: the HTML document
! 1386: * @name: The tag name
! 1387: * @elem: the HTML element
! 1388: *
! 1389: * The HTML DTD allows a tag to implicitly close other tags.
! 1390: * The list is kept in htmlStartClose array. This function checks
! 1391: * if the element or one of it's children would autoclose the
! 1392: * given tag.
! 1393: *
! 1394: * Returns 1 if autoclose, 0 otherwise
! 1395: */
! 1396: int
! 1397: htmlAutoCloseTag(htmlDocPtr doc, const xmlChar *name, htmlNodePtr elem) {
! 1398: htmlNodePtr child;
! 1399:
! 1400: if (elem == NULL) return(1);
! 1401: if (xmlStrEqual(name, elem->name)) return(0);
! 1402: if (htmlCheckAutoClose(elem->name, name)) return(1);
! 1403: child = elem->children;
! 1404: while (child != NULL) {
! 1405: if (htmlAutoCloseTag(doc, name, child)) return(1);
! 1406: child = child->next;
! 1407: }
! 1408: return(0);
! 1409: }
! 1410:
! 1411: /**
! 1412: * htmlIsAutoClosed:
! 1413: * @doc: the HTML document
! 1414: * @elem: the HTML element
! 1415: *
! 1416: * The HTML DTD allows a tag to implicitly close other tags.
! 1417: * The list is kept in htmlStartClose array. This function checks
! 1418: * if a tag is autoclosed by one of it's child
! 1419: *
! 1420: * Returns 1 if autoclosed, 0 otherwise
! 1421: */
! 1422: int
! 1423: htmlIsAutoClosed(htmlDocPtr doc, htmlNodePtr elem) {
! 1424: htmlNodePtr child;
! 1425:
! 1426: if (elem == NULL) return(1);
! 1427: child = elem->children;
! 1428: while (child != NULL) {
! 1429: if (htmlAutoCloseTag(doc, elem->name, child)) return(1);
! 1430: child = child->next;
! 1431: }
! 1432: return(0);
! 1433: }
! 1434:
! 1435: /**
! 1436: * htmlCheckImplied:
! 1437: * @ctxt: an HTML parser context
! 1438: * @newtag: The new tag name
! 1439: *
! 1440: * The HTML DTD allows a tag to exists only implicitly
! 1441: * called when a new tag has been detected and generates the
! 1442: * appropriates implicit tags if missing
! 1443: */
! 1444: static void
! 1445: htmlCheckImplied(htmlParserCtxtPtr ctxt, const xmlChar *newtag) {
! 1446: int i;
! 1447:
! 1448: if (ctxt->options & HTML_PARSE_NOIMPLIED)
! 1449: return;
! 1450: if (!htmlOmittedDefaultValue)
! 1451: return;
! 1452: if (xmlStrEqual(newtag, BAD_CAST"html"))
! 1453: return;
! 1454: if (ctxt->nameNr <= 0) {
! 1455: htmlnamePush(ctxt, BAD_CAST"html");
! 1456: if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL))
! 1457: ctxt->sax->startElement(ctxt->userData, BAD_CAST"html", NULL);
! 1458: }
! 1459: if ((xmlStrEqual(newtag, BAD_CAST"body")) || (xmlStrEqual(newtag, BAD_CAST"head")))
! 1460: return;
! 1461: if ((ctxt->nameNr <= 1) &&
! 1462: ((xmlStrEqual(newtag, BAD_CAST"script")) ||
! 1463: (xmlStrEqual(newtag, BAD_CAST"style")) ||
! 1464: (xmlStrEqual(newtag, BAD_CAST"meta")) ||
! 1465: (xmlStrEqual(newtag, BAD_CAST"link")) ||
! 1466: (xmlStrEqual(newtag, BAD_CAST"title")) ||
! 1467: (xmlStrEqual(newtag, BAD_CAST"base")))) {
! 1468: if (ctxt->html >= 3) {
! 1469: /* we already saw or generated an <head> before */
! 1470: return;
! 1471: }
! 1472: /*
! 1473: * dropped OBJECT ... i you put it first BODY will be
! 1474: * assumed !
! 1475: */
! 1476: htmlnamePush(ctxt, BAD_CAST"head");
! 1477: if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL))
! 1478: ctxt->sax->startElement(ctxt->userData, BAD_CAST"head", NULL);
! 1479: } else if ((!xmlStrEqual(newtag, BAD_CAST"noframes")) &&
! 1480: (!xmlStrEqual(newtag, BAD_CAST"frame")) &&
! 1481: (!xmlStrEqual(newtag, BAD_CAST"frameset"))) {
! 1482: if (ctxt->html >= 10) {
! 1483: /* we already saw or generated a <body> before */
! 1484: return;
! 1485: }
! 1486: for (i = 0;i < ctxt->nameNr;i++) {
! 1487: if (xmlStrEqual(ctxt->nameTab[i], BAD_CAST"body")) {
! 1488: return;
! 1489: }
! 1490: if (xmlStrEqual(ctxt->nameTab[i], BAD_CAST"head")) {
! 1491: return;
! 1492: }
! 1493: }
! 1494:
! 1495: htmlnamePush(ctxt, BAD_CAST"body");
! 1496: if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL))
! 1497: ctxt->sax->startElement(ctxt->userData, BAD_CAST"body", NULL);
! 1498: }
! 1499: }
! 1500:
! 1501: /**
! 1502: * htmlCheckParagraph
! 1503: * @ctxt: an HTML parser context
! 1504: *
! 1505: * Check whether a p element need to be implied before inserting
! 1506: * characters in the current element.
! 1507: *
! 1508: * Returns 1 if a paragraph has been inserted, 0 if not and -1
! 1509: * in case of error.
! 1510: */
! 1511:
! 1512: static int
! 1513: htmlCheckParagraph(htmlParserCtxtPtr ctxt) {
! 1514: const xmlChar *tag;
! 1515: int i;
! 1516:
! 1517: if (ctxt == NULL)
! 1518: return(-1);
! 1519: tag = ctxt->name;
! 1520: if (tag == NULL) {
! 1521: htmlAutoClose(ctxt, BAD_CAST"p");
! 1522: htmlCheckImplied(ctxt, BAD_CAST"p");
! 1523: htmlnamePush(ctxt, BAD_CAST"p");
! 1524: if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL))
! 1525: ctxt->sax->startElement(ctxt->userData, BAD_CAST"p", NULL);
! 1526: return(1);
! 1527: }
! 1528: if (!htmlOmittedDefaultValue)
! 1529: return(0);
! 1530: for (i = 0; htmlNoContentElements[i] != NULL; i++) {
! 1531: if (xmlStrEqual(tag, BAD_CAST htmlNoContentElements[i])) {
! 1532: htmlAutoClose(ctxt, BAD_CAST"p");
! 1533: htmlCheckImplied(ctxt, BAD_CAST"p");
! 1534: htmlnamePush(ctxt, BAD_CAST"p");
! 1535: if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL))
! 1536: ctxt->sax->startElement(ctxt->userData, BAD_CAST"p", NULL);
! 1537: return(1);
! 1538: }
! 1539: }
! 1540: return(0);
! 1541: }
! 1542:
! 1543: /**
! 1544: * htmlIsScriptAttribute:
! 1545: * @name: an attribute name
! 1546: *
! 1547: * Check if an attribute is of content type Script
! 1548: *
! 1549: * Returns 1 is the attribute is a script 0 otherwise
! 1550: */
! 1551: int
! 1552: htmlIsScriptAttribute(const xmlChar *name) {
! 1553: unsigned int i;
! 1554:
! 1555: if (name == NULL)
! 1556: return(0);
! 1557: /*
! 1558: * all script attributes start with 'on'
! 1559: */
! 1560: if ((name[0] != 'o') || (name[1] != 'n'))
! 1561: return(0);
! 1562: for (i = 0;
! 1563: i < sizeof(htmlScriptAttributes)/sizeof(htmlScriptAttributes[0]);
! 1564: i++) {
! 1565: if (xmlStrEqual(name, (const xmlChar *) htmlScriptAttributes[i]))
! 1566: return(1);
! 1567: }
! 1568: return(0);
! 1569: }
! 1570:
! 1571: /************************************************************************
! 1572: * *
! 1573: * The list of HTML predefined entities *
! 1574: * *
! 1575: ************************************************************************/
! 1576:
! 1577:
! 1578: static const htmlEntityDesc html40EntitiesTable[] = {
! 1579: /*
! 1580: * the 4 absolute ones, plus apostrophe.
! 1581: */
! 1582: { 34, "quot", "quotation mark = APL quote, U+0022 ISOnum" },
! 1583: { 38, "amp", "ampersand, U+0026 ISOnum" },
! 1584: { 39, "apos", "single quote" },
! 1585: { 60, "lt", "less-than sign, U+003C ISOnum" },
! 1586: { 62, "gt", "greater-than sign, U+003E ISOnum" },
! 1587:
! 1588: /*
! 1589: * A bunch still in the 128-255 range
! 1590: * Replacing them depend really on the charset used.
! 1591: */
! 1592: { 160, "nbsp", "no-break space = non-breaking space, U+00A0 ISOnum" },
! 1593: { 161, "iexcl","inverted exclamation mark, U+00A1 ISOnum" },
! 1594: { 162, "cent", "cent sign, U+00A2 ISOnum" },
! 1595: { 163, "pound","pound sign, U+00A3 ISOnum" },
! 1596: { 164, "curren","currency sign, U+00A4 ISOnum" },
! 1597: { 165, "yen", "yen sign = yuan sign, U+00A5 ISOnum" },
! 1598: { 166, "brvbar","broken bar = broken vertical bar, U+00A6 ISOnum" },
! 1599: { 167, "sect", "section sign, U+00A7 ISOnum" },
! 1600: { 168, "uml", "diaeresis = spacing diaeresis, U+00A8 ISOdia" },
! 1601: { 169, "copy", "copyright sign, U+00A9 ISOnum" },
! 1602: { 170, "ordf", "feminine ordinal indicator, U+00AA ISOnum" },
! 1603: { 171, "laquo","left-pointing double angle quotation mark = left pointing guillemet, U+00AB ISOnum" },
! 1604: { 172, "not", "not sign, U+00AC ISOnum" },
! 1605: { 173, "shy", "soft hyphen = discretionary hyphen, U+00AD ISOnum" },
! 1606: { 174, "reg", "registered sign = registered trade mark sign, U+00AE ISOnum" },
! 1607: { 175, "macr", "macron = spacing macron = overline = APL overbar, U+00AF ISOdia" },
! 1608: { 176, "deg", "degree sign, U+00B0 ISOnum" },
! 1609: { 177, "plusmn","plus-minus sign = plus-or-minus sign, U+00B1 ISOnum" },
! 1610: { 178, "sup2", "superscript two = superscript digit two = squared, U+00B2 ISOnum" },
! 1611: { 179, "sup3", "superscript three = superscript digit three = cubed, U+00B3 ISOnum" },
! 1612: { 180, "acute","acute accent = spacing acute, U+00B4 ISOdia" },
! 1613: { 181, "micro","micro sign, U+00B5 ISOnum" },
! 1614: { 182, "para", "pilcrow sign = paragraph sign, U+00B6 ISOnum" },
! 1615: { 183, "middot","middle dot = Georgian comma Greek middle dot, U+00B7 ISOnum" },
! 1616: { 184, "cedil","cedilla = spacing cedilla, U+00B8 ISOdia" },
! 1617: { 185, "sup1", "superscript one = superscript digit one, U+00B9 ISOnum" },
! 1618: { 186, "ordm", "masculine ordinal indicator, U+00BA ISOnum" },
! 1619: { 187, "raquo","right-pointing double angle quotation mark right pointing guillemet, U+00BB ISOnum" },
! 1620: { 188, "frac14","vulgar fraction one quarter = fraction one quarter, U+00BC ISOnum" },
! 1621: { 189, "frac12","vulgar fraction one half = fraction one half, U+00BD ISOnum" },
! 1622: { 190, "frac34","vulgar fraction three quarters = fraction three quarters, U+00BE ISOnum" },
! 1623: { 191, "iquest","inverted question mark = turned question mark, U+00BF ISOnum" },
! 1624: { 192, "Agrave","latin capital letter A with grave = latin capital letter A grave, U+00C0 ISOlat1" },
! 1625: { 193, "Aacute","latin capital letter A with acute, U+00C1 ISOlat1" },
! 1626: { 194, "Acirc","latin capital letter A with circumflex, U+00C2 ISOlat1" },
! 1627: { 195, "Atilde","latin capital letter A with tilde, U+00C3 ISOlat1" },
! 1628: { 196, "Auml", "latin capital letter A with diaeresis, U+00C4 ISOlat1" },
! 1629: { 197, "Aring","latin capital letter A with ring above = latin capital letter A ring, U+00C5 ISOlat1" },
! 1630: { 198, "AElig","latin capital letter AE = latin capital ligature AE, U+00C6 ISOlat1" },
! 1631: { 199, "Ccedil","latin capital letter C with cedilla, U+00C7 ISOlat1" },
! 1632: { 200, "Egrave","latin capital letter E with grave, U+00C8 ISOlat1" },
! 1633: { 201, "Eacute","latin capital letter E with acute, U+00C9 ISOlat1" },
! 1634: { 202, "Ecirc","latin capital letter E with circumflex, U+00CA ISOlat1" },
! 1635: { 203, "Euml", "latin capital letter E with diaeresis, U+00CB ISOlat1" },
! 1636: { 204, "Igrave","latin capital letter I with grave, U+00CC ISOlat1" },
! 1637: { 205, "Iacute","latin capital letter I with acute, U+00CD ISOlat1" },
! 1638: { 206, "Icirc","latin capital letter I with circumflex, U+00CE ISOlat1" },
! 1639: { 207, "Iuml", "latin capital letter I with diaeresis, U+00CF ISOlat1" },
! 1640: { 208, "ETH", "latin capital letter ETH, U+00D0 ISOlat1" },
! 1641: { 209, "Ntilde","latin capital letter N with tilde, U+00D1 ISOlat1" },
! 1642: { 210, "Ograve","latin capital letter O with grave, U+00D2 ISOlat1" },
! 1643: { 211, "Oacute","latin capital letter O with acute, U+00D3 ISOlat1" },
! 1644: { 212, "Ocirc","latin capital letter O with circumflex, U+00D4 ISOlat1" },
! 1645: { 213, "Otilde","latin capital letter O with tilde, U+00D5 ISOlat1" },
! 1646: { 214, "Ouml", "latin capital letter O with diaeresis, U+00D6 ISOlat1" },
! 1647: { 215, "times","multiplication sign, U+00D7 ISOnum" },
! 1648: { 216, "Oslash","latin capital letter O with stroke latin capital letter O slash, U+00D8 ISOlat1" },
! 1649: { 217, "Ugrave","latin capital letter U with grave, U+00D9 ISOlat1" },
! 1650: { 218, "Uacute","latin capital letter U with acute, U+00DA ISOlat1" },
! 1651: { 219, "Ucirc","latin capital letter U with circumflex, U+00DB ISOlat1" },
! 1652: { 220, "Uuml", "latin capital letter U with diaeresis, U+00DC ISOlat1" },
! 1653: { 221, "Yacute","latin capital letter Y with acute, U+00DD ISOlat1" },
! 1654: { 222, "THORN","latin capital letter THORN, U+00DE ISOlat1" },
! 1655: { 223, "szlig","latin small letter sharp s = ess-zed, U+00DF ISOlat1" },
! 1656: { 224, "agrave","latin small letter a with grave = latin small letter a grave, U+00E0 ISOlat1" },
! 1657: { 225, "aacute","latin small letter a with acute, U+00E1 ISOlat1" },
! 1658: { 226, "acirc","latin small letter a with circumflex, U+00E2 ISOlat1" },
! 1659: { 227, "atilde","latin small letter a with tilde, U+00E3 ISOlat1" },
! 1660: { 228, "auml", "latin small letter a with diaeresis, U+00E4 ISOlat1" },
! 1661: { 229, "aring","latin small letter a with ring above = latin small letter a ring, U+00E5 ISOlat1" },
! 1662: { 230, "aelig","latin small letter ae = latin small ligature ae, U+00E6 ISOlat1" },
! 1663: { 231, "ccedil","latin small letter c with cedilla, U+00E7 ISOlat1" },
! 1664: { 232, "egrave","latin small letter e with grave, U+00E8 ISOlat1" },
! 1665: { 233, "eacute","latin small letter e with acute, U+00E9 ISOlat1" },
! 1666: { 234, "ecirc","latin small letter e with circumflex, U+00EA ISOlat1" },
! 1667: { 235, "euml", "latin small letter e with diaeresis, U+00EB ISOlat1" },
! 1668: { 236, "igrave","latin small letter i with grave, U+00EC ISOlat1" },
! 1669: { 237, "iacute","latin small letter i with acute, U+00ED ISOlat1" },
! 1670: { 238, "icirc","latin small letter i with circumflex, U+00EE ISOlat1" },
! 1671: { 239, "iuml", "latin small letter i with diaeresis, U+00EF ISOlat1" },
! 1672: { 240, "eth", "latin small letter eth, U+00F0 ISOlat1" },
! 1673: { 241, "ntilde","latin small letter n with tilde, U+00F1 ISOlat1" },
! 1674: { 242, "ograve","latin small letter o with grave, U+00F2 ISOlat1" },
! 1675: { 243, "oacute","latin small letter o with acute, U+00F3 ISOlat1" },
! 1676: { 244, "ocirc","latin small letter o with circumflex, U+00F4 ISOlat1" },
! 1677: { 245, "otilde","latin small letter o with tilde, U+00F5 ISOlat1" },
! 1678: { 246, "ouml", "latin small letter o with diaeresis, U+00F6 ISOlat1" },
! 1679: { 247, "divide","division sign, U+00F7 ISOnum" },
! 1680: { 248, "oslash","latin small letter o with stroke, = latin small letter o slash, U+00F8 ISOlat1" },
! 1681: { 249, "ugrave","latin small letter u with grave, U+00F9 ISOlat1" },
! 1682: { 250, "uacute","latin small letter u with acute, U+00FA ISOlat1" },
! 1683: { 251, "ucirc","latin small letter u with circumflex, U+00FB ISOlat1" },
! 1684: { 252, "uuml", "latin small letter u with diaeresis, U+00FC ISOlat1" },
! 1685: { 253, "yacute","latin small letter y with acute, U+00FD ISOlat1" },
! 1686: { 254, "thorn","latin small letter thorn with, U+00FE ISOlat1" },
! 1687: { 255, "yuml", "latin small letter y with diaeresis, U+00FF ISOlat1" },
! 1688:
! 1689: { 338, "OElig","latin capital ligature OE, U+0152 ISOlat2" },
! 1690: { 339, "oelig","latin small ligature oe, U+0153 ISOlat2" },
! 1691: { 352, "Scaron","latin capital letter S with caron, U+0160 ISOlat2" },
! 1692: { 353, "scaron","latin small letter s with caron, U+0161 ISOlat2" },
! 1693: { 376, "Yuml", "latin capital letter Y with diaeresis, U+0178 ISOlat2" },
! 1694:
! 1695: /*
! 1696: * Anything below should really be kept as entities references
! 1697: */
! 1698: { 402, "fnof", "latin small f with hook = function = florin, U+0192 ISOtech" },
! 1699:
! 1700: { 710, "circ", "modifier letter circumflex accent, U+02C6 ISOpub" },
! 1701: { 732, "tilde","small tilde, U+02DC ISOdia" },
! 1702:
! 1703: { 913, "Alpha","greek capital letter alpha, U+0391" },
! 1704: { 914, "Beta", "greek capital letter beta, U+0392" },
! 1705: { 915, "Gamma","greek capital letter gamma, U+0393 ISOgrk3" },
! 1706: { 916, "Delta","greek capital letter delta, U+0394 ISOgrk3" },
! 1707: { 917, "Epsilon","greek capital letter epsilon, U+0395" },
! 1708: { 918, "Zeta", "greek capital letter zeta, U+0396" },
! 1709: { 919, "Eta", "greek capital letter eta, U+0397" },
! 1710: { 920, "Theta","greek capital letter theta, U+0398 ISOgrk3" },
! 1711: { 921, "Iota", "greek capital letter iota, U+0399" },
! 1712: { 922, "Kappa","greek capital letter kappa, U+039A" },
! 1713: { 923, "Lambda", "greek capital letter lambda, U+039B ISOgrk3" },
! 1714: { 924, "Mu", "greek capital letter mu, U+039C" },
! 1715: { 925, "Nu", "greek capital letter nu, U+039D" },
! 1716: { 926, "Xi", "greek capital letter xi, U+039E ISOgrk3" },
! 1717: { 927, "Omicron","greek capital letter omicron, U+039F" },
! 1718: { 928, "Pi", "greek capital letter pi, U+03A0 ISOgrk3" },
! 1719: { 929, "Rho", "greek capital letter rho, U+03A1" },
! 1720: { 931, "Sigma","greek capital letter sigma, U+03A3 ISOgrk3" },
! 1721: { 932, "Tau", "greek capital letter tau, U+03A4" },
! 1722: { 933, "Upsilon","greek capital letter upsilon, U+03A5 ISOgrk3" },
! 1723: { 934, "Phi", "greek capital letter phi, U+03A6 ISOgrk3" },
! 1724: { 935, "Chi", "greek capital letter chi, U+03A7" },
! 1725: { 936, "Psi", "greek capital letter psi, U+03A8 ISOgrk3" },
! 1726: { 937, "Omega","greek capital letter omega, U+03A9 ISOgrk3" },
! 1727:
! 1728: { 945, "alpha","greek small letter alpha, U+03B1 ISOgrk3" },
! 1729: { 946, "beta", "greek small letter beta, U+03B2 ISOgrk3" },
! 1730: { 947, "gamma","greek small letter gamma, U+03B3 ISOgrk3" },
! 1731: { 948, "delta","greek small letter delta, U+03B4 ISOgrk3" },
! 1732: { 949, "epsilon","greek small letter epsilon, U+03B5 ISOgrk3" },
! 1733: { 950, "zeta", "greek small letter zeta, U+03B6 ISOgrk3" },
! 1734: { 951, "eta", "greek small letter eta, U+03B7 ISOgrk3" },
! 1735: { 952, "theta","greek small letter theta, U+03B8 ISOgrk3" },
! 1736: { 953, "iota", "greek small letter iota, U+03B9 ISOgrk3" },
! 1737: { 954, "kappa","greek small letter kappa, U+03BA ISOgrk3" },
! 1738: { 955, "lambda","greek small letter lambda, U+03BB ISOgrk3" },
! 1739: { 956, "mu", "greek small letter mu, U+03BC ISOgrk3" },
! 1740: { 957, "nu", "greek small letter nu, U+03BD ISOgrk3" },
! 1741: { 958, "xi", "greek small letter xi, U+03BE ISOgrk3" },
! 1742: { 959, "omicron","greek small letter omicron, U+03BF NEW" },
! 1743: { 960, "pi", "greek small letter pi, U+03C0 ISOgrk3" },
! 1744: { 961, "rho", "greek small letter rho, U+03C1 ISOgrk3" },
! 1745: { 962, "sigmaf","greek small letter final sigma, U+03C2 ISOgrk3" },
! 1746: { 963, "sigma","greek small letter sigma, U+03C3 ISOgrk3" },
! 1747: { 964, "tau", "greek small letter tau, U+03C4 ISOgrk3" },
! 1748: { 965, "upsilon","greek small letter upsilon, U+03C5 ISOgrk3" },
! 1749: { 966, "phi", "greek small letter phi, U+03C6 ISOgrk3" },
! 1750: { 967, "chi", "greek small letter chi, U+03C7 ISOgrk3" },
! 1751: { 968, "psi", "greek small letter psi, U+03C8 ISOgrk3" },
! 1752: { 969, "omega","greek small letter omega, U+03C9 ISOgrk3" },
! 1753: { 977, "thetasym","greek small letter theta symbol, U+03D1 NEW" },
! 1754: { 978, "upsih","greek upsilon with hook symbol, U+03D2 NEW" },
! 1755: { 982, "piv", "greek pi symbol, U+03D6 ISOgrk3" },
! 1756:
! 1757: { 8194, "ensp", "en space, U+2002 ISOpub" },
! 1758: { 8195, "emsp", "em space, U+2003 ISOpub" },
! 1759: { 8201, "thinsp","thin space, U+2009 ISOpub" },
! 1760: { 8204, "zwnj", "zero width non-joiner, U+200C NEW RFC 2070" },
! 1761: { 8205, "zwj", "zero width joiner, U+200D NEW RFC 2070" },
! 1762: { 8206, "lrm", "left-to-right mark, U+200E NEW RFC 2070" },
! 1763: { 8207, "rlm", "right-to-left mark, U+200F NEW RFC 2070" },
! 1764: { 8211, "ndash","en dash, U+2013 ISOpub" },
! 1765: { 8212, "mdash","em dash, U+2014 ISOpub" },
! 1766: { 8216, "lsquo","left single quotation mark, U+2018 ISOnum" },
! 1767: { 8217, "rsquo","right single quotation mark, U+2019 ISOnum" },
! 1768: { 8218, "sbquo","single low-9 quotation mark, U+201A NEW" },
! 1769: { 8220, "ldquo","left double quotation mark, U+201C ISOnum" },
! 1770: { 8221, "rdquo","right double quotation mark, U+201D ISOnum" },
! 1771: { 8222, "bdquo","double low-9 quotation mark, U+201E NEW" },
! 1772: { 8224, "dagger","dagger, U+2020 ISOpub" },
! 1773: { 8225, "Dagger","double dagger, U+2021 ISOpub" },
! 1774:
! 1775: { 8226, "bull", "bullet = black small circle, U+2022 ISOpub" },
! 1776: { 8230, "hellip","horizontal ellipsis = three dot leader, U+2026 ISOpub" },
! 1777:
! 1778: { 8240, "permil","per mille sign, U+2030 ISOtech" },
! 1779:
! 1780: { 8242, "prime","prime = minutes = feet, U+2032 ISOtech" },
! 1781: { 8243, "Prime","double prime = seconds = inches, U+2033 ISOtech" },
! 1782:
! 1783: { 8249, "lsaquo","single left-pointing angle quotation mark, U+2039 ISO proposed" },
! 1784: { 8250, "rsaquo","single right-pointing angle quotation mark, U+203A ISO proposed" },
! 1785:
! 1786: { 8254, "oline","overline = spacing overscore, U+203E NEW" },
! 1787: { 8260, "frasl","fraction slash, U+2044 NEW" },
! 1788:
! 1789: { 8364, "euro", "euro sign, U+20AC NEW" },
! 1790:
! 1791: { 8465, "image","blackletter capital I = imaginary part, U+2111 ISOamso" },
! 1792: { 8472, "weierp","script capital P = power set = Weierstrass p, U+2118 ISOamso" },
! 1793: { 8476, "real", "blackletter capital R = real part symbol, U+211C ISOamso" },
! 1794: { 8482, "trade","trade mark sign, U+2122 ISOnum" },
! 1795: { 8501, "alefsym","alef symbol = first transfinite cardinal, U+2135 NEW" },
! 1796: { 8592, "larr", "leftwards arrow, U+2190 ISOnum" },
! 1797: { 8593, "uarr", "upwards arrow, U+2191 ISOnum" },
! 1798: { 8594, "rarr", "rightwards arrow, U+2192 ISOnum" },
! 1799: { 8595, "darr", "downwards arrow, U+2193 ISOnum" },
! 1800: { 8596, "harr", "left right arrow, U+2194 ISOamsa" },
! 1801: { 8629, "crarr","downwards arrow with corner leftwards = carriage return, U+21B5 NEW" },
! 1802: { 8656, "lArr", "leftwards double arrow, U+21D0 ISOtech" },
! 1803: { 8657, "uArr", "upwards double arrow, U+21D1 ISOamsa" },
! 1804: { 8658, "rArr", "rightwards double arrow, U+21D2 ISOtech" },
! 1805: { 8659, "dArr", "downwards double arrow, U+21D3 ISOamsa" },
! 1806: { 8660, "hArr", "left right double arrow, U+21D4 ISOamsa" },
! 1807:
! 1808: { 8704, "forall","for all, U+2200 ISOtech" },
! 1809: { 8706, "part", "partial differential, U+2202 ISOtech" },
! 1810: { 8707, "exist","there exists, U+2203 ISOtech" },
! 1811: { 8709, "empty","empty set = null set = diameter, U+2205 ISOamso" },
! 1812: { 8711, "nabla","nabla = backward difference, U+2207 ISOtech" },
! 1813: { 8712, "isin", "element of, U+2208 ISOtech" },
! 1814: { 8713, "notin","not an element of, U+2209 ISOtech" },
! 1815: { 8715, "ni", "contains as member, U+220B ISOtech" },
! 1816: { 8719, "prod", "n-ary product = product sign, U+220F ISOamsb" },
! 1817: { 8721, "sum", "n-ary summation, U+2211 ISOamsb" },
! 1818: { 8722, "minus","minus sign, U+2212 ISOtech" },
! 1819: { 8727, "lowast","asterisk operator, U+2217 ISOtech" },
! 1820: { 8730, "radic","square root = radical sign, U+221A ISOtech" },
! 1821: { 8733, "prop", "proportional to, U+221D ISOtech" },
! 1822: { 8734, "infin","infinity, U+221E ISOtech" },
! 1823: { 8736, "ang", "angle, U+2220 ISOamso" },
! 1824: { 8743, "and", "logical and = wedge, U+2227 ISOtech" },
! 1825: { 8744, "or", "logical or = vee, U+2228 ISOtech" },
! 1826: { 8745, "cap", "intersection = cap, U+2229 ISOtech" },
! 1827: { 8746, "cup", "union = cup, U+222A ISOtech" },
! 1828: { 8747, "int", "integral, U+222B ISOtech" },
! 1829: { 8756, "there4","therefore, U+2234 ISOtech" },
! 1830: { 8764, "sim", "tilde operator = varies with = similar to, U+223C ISOtech" },
! 1831: { 8773, "cong", "approximately equal to, U+2245 ISOtech" },
! 1832: { 8776, "asymp","almost equal to = asymptotic to, U+2248 ISOamsr" },
! 1833: { 8800, "ne", "not equal to, U+2260 ISOtech" },
! 1834: { 8801, "equiv","identical to, U+2261 ISOtech" },
! 1835: { 8804, "le", "less-than or equal to, U+2264 ISOtech" },
! 1836: { 8805, "ge", "greater-than or equal to, U+2265 ISOtech" },
! 1837: { 8834, "sub", "subset of, U+2282 ISOtech" },
! 1838: { 8835, "sup", "superset of, U+2283 ISOtech" },
! 1839: { 8836, "nsub", "not a subset of, U+2284 ISOamsn" },
! 1840: { 8838, "sube", "subset of or equal to, U+2286 ISOtech" },
! 1841: { 8839, "supe", "superset of or equal to, U+2287 ISOtech" },
! 1842: { 8853, "oplus","circled plus = direct sum, U+2295 ISOamsb" },
! 1843: { 8855, "otimes","circled times = vector product, U+2297 ISOamsb" },
! 1844: { 8869, "perp", "up tack = orthogonal to = perpendicular, U+22A5 ISOtech" },
! 1845: { 8901, "sdot", "dot operator, U+22C5 ISOamsb" },
! 1846: { 8968, "lceil","left ceiling = apl upstile, U+2308 ISOamsc" },
! 1847: { 8969, "rceil","right ceiling, U+2309 ISOamsc" },
! 1848: { 8970, "lfloor","left floor = apl downstile, U+230A ISOamsc" },
! 1849: { 8971, "rfloor","right floor, U+230B ISOamsc" },
! 1850: { 9001, "lang", "left-pointing angle bracket = bra, U+2329 ISOtech" },
! 1851: { 9002, "rang", "right-pointing angle bracket = ket, U+232A ISOtech" },
! 1852: { 9674, "loz", "lozenge, U+25CA ISOpub" },
! 1853:
! 1854: { 9824, "spades","black spade suit, U+2660 ISOpub" },
! 1855: { 9827, "clubs","black club suit = shamrock, U+2663 ISOpub" },
! 1856: { 9829, "hearts","black heart suit = valentine, U+2665 ISOpub" },
! 1857: { 9830, "diams","black diamond suit, U+2666 ISOpub" },
! 1858:
! 1859: };
! 1860:
! 1861: /************************************************************************
! 1862: * *
! 1863: * Commodity functions to handle entities *
! 1864: * *
! 1865: ************************************************************************/
! 1866:
! 1867: /*
! 1868: * Macro used to grow the current buffer.
! 1869: */
! 1870: #define growBuffer(buffer) { \
! 1871: xmlChar *tmp; \
! 1872: buffer##_size *= 2; \
! 1873: tmp = (xmlChar *) xmlRealloc(buffer, buffer##_size * sizeof(xmlChar)); \
! 1874: if (tmp == NULL) { \
! 1875: htmlErrMemory(ctxt, "growing buffer\n"); \
! 1876: xmlFree(buffer); \
! 1877: return(NULL); \
! 1878: } \
! 1879: buffer = tmp; \
! 1880: }
! 1881:
! 1882: /**
! 1883: * htmlEntityLookup:
! 1884: * @name: the entity name
! 1885: *
! 1886: * Lookup the given entity in EntitiesTable
! 1887: *
! 1888: * TODO: the linear scan is really ugly, an hash table is really needed.
! 1889: *
! 1890: * Returns the associated htmlEntityDescPtr if found, NULL otherwise.
! 1891: */
! 1892: const htmlEntityDesc *
! 1893: htmlEntityLookup(const xmlChar *name) {
! 1894: unsigned int i;
! 1895:
! 1896: for (i = 0;i < (sizeof(html40EntitiesTable)/
! 1897: sizeof(html40EntitiesTable[0]));i++) {
! 1898: if (xmlStrEqual(name, BAD_CAST html40EntitiesTable[i].name)) {
! 1899: return((htmlEntityDescPtr) &html40EntitiesTable[i]);
! 1900: }
! 1901: }
! 1902: return(NULL);
! 1903: }
! 1904:
! 1905: /**
! 1906: * htmlEntityValueLookup:
! 1907: * @value: the entity's unicode value
! 1908: *
! 1909: * Lookup the given entity in EntitiesTable
! 1910: *
! 1911: * TODO: the linear scan is really ugly, an hash table is really needed.
! 1912: *
! 1913: * Returns the associated htmlEntityDescPtr if found, NULL otherwise.
! 1914: */
! 1915: const htmlEntityDesc *
! 1916: htmlEntityValueLookup(unsigned int value) {
! 1917: unsigned int i;
! 1918:
! 1919: for (i = 0;i < (sizeof(html40EntitiesTable)/
! 1920: sizeof(html40EntitiesTable[0]));i++) {
! 1921: if (html40EntitiesTable[i].value >= value) {
! 1922: if (html40EntitiesTable[i].value > value)
! 1923: break;
! 1924: return((htmlEntityDescPtr) &html40EntitiesTable[i]);
! 1925: }
! 1926: }
! 1927: return(NULL);
! 1928: }
! 1929:
! 1930: /**
! 1931: * UTF8ToHtml:
! 1932: * @out: a pointer to an array of bytes to store the result
! 1933: * @outlen: the length of @out
! 1934: * @in: a pointer to an array of UTF-8 chars
! 1935: * @inlen: the length of @in
! 1936: *
! 1937: * Take a block of UTF-8 chars in and try to convert it to an ASCII
! 1938: * plus HTML entities block of chars out.
! 1939: *
! 1940: * Returns 0 if success, -2 if the transcoding fails, or -1 otherwise
! 1941: * The value of @inlen after return is the number of octets consumed
! 1942: * as the return value is positive, else unpredictable.
! 1943: * The value of @outlen after return is the number of octets consumed.
! 1944: */
! 1945: int
! 1946: UTF8ToHtml(unsigned char* out, int *outlen,
! 1947: const unsigned char* in, int *inlen) {
! 1948: const unsigned char* processed = in;
! 1949: const unsigned char* outend;
! 1950: const unsigned char* outstart = out;
! 1951: const unsigned char* instart = in;
! 1952: const unsigned char* inend;
! 1953: unsigned int c, d;
! 1954: int trailing;
! 1955:
! 1956: if ((out == NULL) || (outlen == NULL) || (inlen == NULL)) return(-1);
! 1957: if (in == NULL) {
! 1958: /*
! 1959: * initialization nothing to do
! 1960: */
! 1961: *outlen = 0;
! 1962: *inlen = 0;
! 1963: return(0);
! 1964: }
! 1965: inend = in + (*inlen);
! 1966: outend = out + (*outlen);
! 1967: while (in < inend) {
! 1968: d = *in++;
! 1969: if (d < 0x80) { c= d; trailing= 0; }
! 1970: else if (d < 0xC0) {
! 1971: /* trailing byte in leading position */
! 1972: *outlen = out - outstart;
! 1973: *inlen = processed - instart;
! 1974: return(-2);
! 1975: } else if (d < 0xE0) { c= d & 0x1F; trailing= 1; }
! 1976: else if (d < 0xF0) { c= d & 0x0F; trailing= 2; }
! 1977: else if (d < 0xF8) { c= d & 0x07; trailing= 3; }
! 1978: else {
! 1979: /* no chance for this in Ascii */
! 1980: *outlen = out - outstart;
! 1981: *inlen = processed - instart;
! 1982: return(-2);
! 1983: }
! 1984:
! 1985: if (inend - in < trailing) {
! 1986: break;
! 1987: }
! 1988:
! 1989: for ( ; trailing; trailing--) {
! 1990: if ((in >= inend) || (((d= *in++) & 0xC0) != 0x80))
! 1991: break;
! 1992: c <<= 6;
! 1993: c |= d & 0x3F;
! 1994: }
! 1995:
! 1996: /* assertion: c is a single UTF-4 value */
! 1997: if (c < 0x80) {
! 1998: if (out + 1 >= outend)
! 1999: break;
! 2000: *out++ = c;
! 2001: } else {
! 2002: int len;
! 2003: const htmlEntityDesc * ent;
! 2004: const char *cp;
! 2005: char nbuf[16];
! 2006:
! 2007: /*
! 2008: * Try to lookup a predefined HTML entity for it
! 2009: */
! 2010:
! 2011: ent = htmlEntityValueLookup(c);
! 2012: if (ent == NULL) {
! 2013: snprintf(nbuf, sizeof(nbuf), "#%u", c);
! 2014: cp = nbuf;
! 2015: }
! 2016: else
! 2017: cp = ent->name;
! 2018: len = strlen(cp);
! 2019: if (out + 2 + len >= outend)
! 2020: break;
! 2021: *out++ = '&';
! 2022: memcpy(out, cp, len);
! 2023: out += len;
! 2024: *out++ = ';';
! 2025: }
! 2026: processed = in;
! 2027: }
! 2028: *outlen = out - outstart;
! 2029: *inlen = processed - instart;
! 2030: return(0);
! 2031: }
! 2032:
! 2033: /**
! 2034: * htmlEncodeEntities:
! 2035: * @out: a pointer to an array of bytes to store the result
! 2036: * @outlen: the length of @out
! 2037: * @in: a pointer to an array of UTF-8 chars
! 2038: * @inlen: the length of @in
! 2039: * @quoteChar: the quote character to escape (' or ") or zero.
! 2040: *
! 2041: * Take a block of UTF-8 chars in and try to convert it to an ASCII
! 2042: * plus HTML entities block of chars out.
! 2043: *
! 2044: * Returns 0 if success, -2 if the transcoding fails, or -1 otherwise
! 2045: * The value of @inlen after return is the number of octets consumed
! 2046: * as the return value is positive, else unpredictable.
! 2047: * The value of @outlen after return is the number of octets consumed.
! 2048: */
! 2049: int
! 2050: htmlEncodeEntities(unsigned char* out, int *outlen,
! 2051: const unsigned char* in, int *inlen, int quoteChar) {
! 2052: const unsigned char* processed = in;
! 2053: const unsigned char* outend;
! 2054: const unsigned char* outstart = out;
! 2055: const unsigned char* instart = in;
! 2056: const unsigned char* inend;
! 2057: unsigned int c, d;
! 2058: int trailing;
! 2059:
! 2060: if ((out == NULL) || (outlen == NULL) || (inlen == NULL) || (in == NULL))
! 2061: return(-1);
! 2062: outend = out + (*outlen);
! 2063: inend = in + (*inlen);
! 2064: while (in < inend) {
! 2065: d = *in++;
! 2066: if (d < 0x80) { c= d; trailing= 0; }
! 2067: else if (d < 0xC0) {
! 2068: /* trailing byte in leading position */
! 2069: *outlen = out - outstart;
! 2070: *inlen = processed - instart;
! 2071: return(-2);
! 2072: } else if (d < 0xE0) { c= d & 0x1F; trailing= 1; }
! 2073: else if (d < 0xF0) { c= d & 0x0F; trailing= 2; }
! 2074: else if (d < 0xF8) { c= d & 0x07; trailing= 3; }
! 2075: else {
! 2076: /* no chance for this in Ascii */
! 2077: *outlen = out - outstart;
! 2078: *inlen = processed - instart;
! 2079: return(-2);
! 2080: }
! 2081:
! 2082: if (inend - in < trailing)
! 2083: break;
! 2084:
! 2085: while (trailing--) {
! 2086: if (((d= *in++) & 0xC0) != 0x80) {
! 2087: *outlen = out - outstart;
! 2088: *inlen = processed - instart;
! 2089: return(-2);
! 2090: }
! 2091: c <<= 6;
! 2092: c |= d & 0x3F;
! 2093: }
! 2094:
! 2095: /* assertion: c is a single UTF-4 value */
! 2096: if ((c < 0x80) && (c != (unsigned int) quoteChar) &&
! 2097: (c != '&') && (c != '<') && (c != '>')) {
! 2098: if (out >= outend)
! 2099: break;
! 2100: *out++ = c;
! 2101: } else {
! 2102: const htmlEntityDesc * ent;
! 2103: const char *cp;
! 2104: char nbuf[16];
! 2105: int len;
! 2106:
! 2107: /*
! 2108: * Try to lookup a predefined HTML entity for it
! 2109: */
! 2110: ent = htmlEntityValueLookup(c);
! 2111: if (ent == NULL) {
! 2112: snprintf(nbuf, sizeof(nbuf), "#%u", c);
! 2113: cp = nbuf;
! 2114: }
! 2115: else
! 2116: cp = ent->name;
! 2117: len = strlen(cp);
! 2118: if (out + 2 + len > outend)
! 2119: break;
! 2120: *out++ = '&';
! 2121: memcpy(out, cp, len);
! 2122: out += len;
! 2123: *out++ = ';';
! 2124: }
! 2125: processed = in;
! 2126: }
! 2127: *outlen = out - outstart;
! 2128: *inlen = processed - instart;
! 2129: return(0);
! 2130: }
! 2131:
! 2132: /************************************************************************
! 2133: * *
! 2134: * Commodity functions to handle streams *
! 2135: * *
! 2136: ************************************************************************/
! 2137:
! 2138: /**
! 2139: * htmlNewInputStream:
! 2140: * @ctxt: an HTML parser context
! 2141: *
! 2142: * Create a new input stream structure
! 2143: * Returns the new input stream or NULL
! 2144: */
! 2145: static htmlParserInputPtr
! 2146: htmlNewInputStream(htmlParserCtxtPtr ctxt) {
! 2147: htmlParserInputPtr input;
! 2148:
! 2149: input = (xmlParserInputPtr) xmlMalloc(sizeof(htmlParserInput));
! 2150: if (input == NULL) {
! 2151: htmlErrMemory(ctxt, "couldn't allocate a new input stream\n");
! 2152: return(NULL);
! 2153: }
! 2154: memset(input, 0, sizeof(htmlParserInput));
! 2155: input->filename = NULL;
! 2156: input->directory = NULL;
! 2157: input->base = NULL;
! 2158: input->cur = NULL;
! 2159: input->buf = NULL;
! 2160: input->line = 1;
! 2161: input->col = 1;
! 2162: input->buf = NULL;
! 2163: input->free = NULL;
! 2164: input->version = NULL;
! 2165: input->consumed = 0;
! 2166: input->length = 0;
! 2167: return(input);
! 2168: }
! 2169:
! 2170:
! 2171: /************************************************************************
! 2172: * *
! 2173: * Commodity functions, cleanup needed ? *
! 2174: * *
! 2175: ************************************************************************/
! 2176: /*
! 2177: * all tags allowing pc data from the html 4.01 loose dtd
! 2178: * NOTE: it might be more apropriate to integrate this information
! 2179: * into the html40ElementTable array but I don't want to risk any
! 2180: * binary incomptibility
! 2181: */
! 2182: static const char *allowPCData[] = {
! 2183: "a", "abbr", "acronym", "address", "applet", "b", "bdo", "big",
! 2184: "blockquote", "body", "button", "caption", "center", "cite", "code",
! 2185: "dd", "del", "dfn", "div", "dt", "em", "font", "form", "h1", "h2",
! 2186: "h3", "h4", "h5", "h6", "i", "iframe", "ins", "kbd", "label", "legend",
! 2187: "li", "noframes", "noscript", "object", "p", "pre", "q", "s", "samp",
! 2188: "small", "span", "strike", "strong", "td", "th", "tt", "u", "var"
! 2189: };
! 2190:
! 2191: /**
! 2192: * areBlanks:
! 2193: * @ctxt: an HTML parser context
! 2194: * @str: a xmlChar *
! 2195: * @len: the size of @str
! 2196: *
! 2197: * Is this a sequence of blank chars that one can ignore ?
! 2198: *
! 2199: * Returns 1 if ignorable 0 otherwise.
! 2200: */
! 2201:
! 2202: static int areBlanks(htmlParserCtxtPtr ctxt, const xmlChar *str, int len) {
! 2203: unsigned int i;
! 2204: int j;
! 2205: xmlNodePtr lastChild;
! 2206: xmlDtdPtr dtd;
! 2207:
! 2208: for (j = 0;j < len;j++)
! 2209: if (!(IS_BLANK_CH(str[j]))) return(0);
! 2210:
! 2211: if (CUR == 0) return(1);
! 2212: if (CUR != '<') return(0);
! 2213: if (ctxt->name == NULL)
! 2214: return(1);
! 2215: if (xmlStrEqual(ctxt->name, BAD_CAST"html"))
! 2216: return(1);
! 2217: if (xmlStrEqual(ctxt->name, BAD_CAST"head"))
! 2218: return(1);
! 2219:
! 2220: /* Only strip CDATA children of the body tag for strict HTML DTDs */
! 2221: if (xmlStrEqual(ctxt->name, BAD_CAST "body") && ctxt->myDoc != NULL) {
! 2222: dtd = xmlGetIntSubset(ctxt->myDoc);
! 2223: if (dtd != NULL && dtd->ExternalID != NULL) {
! 2224: if (!xmlStrcasecmp(dtd->ExternalID, BAD_CAST "-//W3C//DTD HTML 4.01//EN") ||
! 2225: !xmlStrcasecmp(dtd->ExternalID, BAD_CAST "-//W3C//DTD HTML 4//EN"))
! 2226: return(1);
! 2227: }
! 2228: }
! 2229:
! 2230: if (ctxt->node == NULL) return(0);
! 2231: lastChild = xmlGetLastChild(ctxt->node);
! 2232: while ((lastChild) && (lastChild->type == XML_COMMENT_NODE))
! 2233: lastChild = lastChild->prev;
! 2234: if (lastChild == NULL) {
! 2235: if ((ctxt->node->type != XML_ELEMENT_NODE) &&
! 2236: (ctxt->node->content != NULL)) return(0);
! 2237: /* keep ws in constructs like ...<b> </b>...
! 2238: for all tags "b" allowing PCDATA */
! 2239: for ( i = 0; i < sizeof(allowPCData)/sizeof(allowPCData[0]); i++ ) {
! 2240: if ( xmlStrEqual(ctxt->name, BAD_CAST allowPCData[i]) ) {
! 2241: return(0);
! 2242: }
! 2243: }
! 2244: } else if (xmlNodeIsText(lastChild)) {
! 2245: return(0);
! 2246: } else {
! 2247: /* keep ws in constructs like <p><b>xy</b> <i>z</i><p>
! 2248: for all tags "p" allowing PCDATA */
! 2249: for ( i = 0; i < sizeof(allowPCData)/sizeof(allowPCData[0]); i++ ) {
! 2250: if ( xmlStrEqual(lastChild->name, BAD_CAST allowPCData[i]) ) {
! 2251: return(0);
! 2252: }
! 2253: }
! 2254: }
! 2255: return(1);
! 2256: }
! 2257:
! 2258: /**
! 2259: * htmlNewDocNoDtD:
! 2260: * @URI: URI for the dtd, or NULL
! 2261: * @ExternalID: the external ID of the DTD, or NULL
! 2262: *
! 2263: * Creates a new HTML document without a DTD node if @URI and @ExternalID
! 2264: * are NULL
! 2265: *
! 2266: * Returns a new document, do not initialize the DTD if not provided
! 2267: */
! 2268: htmlDocPtr
! 2269: htmlNewDocNoDtD(const xmlChar *URI, const xmlChar *ExternalID) {
! 2270: xmlDocPtr cur;
! 2271:
! 2272: /*
! 2273: * Allocate a new document and fill the fields.
! 2274: */
! 2275: cur = (xmlDocPtr) xmlMalloc(sizeof(xmlDoc));
! 2276: if (cur == NULL) {
! 2277: htmlErrMemory(NULL, "HTML document creation failed\n");
! 2278: return(NULL);
! 2279: }
! 2280: memset(cur, 0, sizeof(xmlDoc));
! 2281:
! 2282: cur->type = XML_HTML_DOCUMENT_NODE;
! 2283: cur->version = NULL;
! 2284: cur->intSubset = NULL;
! 2285: cur->doc = cur;
! 2286: cur->name = NULL;
! 2287: cur->children = NULL;
! 2288: cur->extSubset = NULL;
! 2289: cur->oldNs = NULL;
! 2290: cur->encoding = NULL;
! 2291: cur->standalone = 1;
! 2292: cur->compression = 0;
! 2293: cur->ids = NULL;
! 2294: cur->refs = NULL;
! 2295: cur->_private = NULL;
! 2296: cur->charset = XML_CHAR_ENCODING_UTF8;
! 2297: cur->properties = XML_DOC_HTML | XML_DOC_USERBUILT;
! 2298: if ((ExternalID != NULL) ||
! 2299: (URI != NULL))
! 2300: xmlCreateIntSubset(cur, BAD_CAST "html", ExternalID, URI);
! 2301: return(cur);
! 2302: }
! 2303:
! 2304: /**
! 2305: * htmlNewDoc:
! 2306: * @URI: URI for the dtd, or NULL
! 2307: * @ExternalID: the external ID of the DTD, or NULL
! 2308: *
! 2309: * Creates a new HTML document
! 2310: *
! 2311: * Returns a new document
! 2312: */
! 2313: htmlDocPtr
! 2314: htmlNewDoc(const xmlChar *URI, const xmlChar *ExternalID) {
! 2315: if ((URI == NULL) && (ExternalID == NULL))
! 2316: return(htmlNewDocNoDtD(
! 2317: BAD_CAST "http://www.w3.org/TR/REC-html40/loose.dtd",
! 2318: BAD_CAST "-//W3C//DTD HTML 4.0 Transitional//EN"));
! 2319:
! 2320: return(htmlNewDocNoDtD(URI, ExternalID));
! 2321: }
! 2322:
! 2323:
! 2324: /************************************************************************
! 2325: * *
! 2326: * The parser itself *
! 2327: * Relates to http://www.w3.org/TR/html40 *
! 2328: * *
! 2329: ************************************************************************/
! 2330:
! 2331: /************************************************************************
! 2332: * *
! 2333: * The parser itself *
! 2334: * *
! 2335: ************************************************************************/
! 2336:
! 2337: static const xmlChar * htmlParseNameComplex(xmlParserCtxtPtr ctxt);
! 2338:
! 2339: /**
! 2340: * htmlParseHTMLName:
! 2341: * @ctxt: an HTML parser context
! 2342: *
! 2343: * parse an HTML tag or attribute name, note that we convert it to lowercase
! 2344: * since HTML names are not case-sensitive.
! 2345: *
! 2346: * Returns the Tag Name parsed or NULL
! 2347: */
! 2348:
! 2349: static const xmlChar *
! 2350: htmlParseHTMLName(htmlParserCtxtPtr ctxt) {
! 2351: int i = 0;
! 2352: xmlChar loc[HTML_PARSER_BUFFER_SIZE];
! 2353:
! 2354: if (!IS_ASCII_LETTER(CUR) && (CUR != '_') &&
! 2355: (CUR != ':') && (CUR != '.')) return(NULL);
! 2356:
! 2357: while ((i < HTML_PARSER_BUFFER_SIZE) &&
! 2358: ((IS_ASCII_LETTER(CUR)) || (IS_ASCII_DIGIT(CUR)) ||
! 2359: (CUR == ':') || (CUR == '-') || (CUR == '_') ||
! 2360: (CUR == '.'))) {
! 2361: if ((CUR >= 'A') && (CUR <= 'Z')) loc[i] = CUR + 0x20;
! 2362: else loc[i] = CUR;
! 2363: i++;
! 2364:
! 2365: NEXT;
! 2366: }
! 2367:
! 2368: return(xmlDictLookup(ctxt->dict, loc, i));
! 2369: }
! 2370:
! 2371:
! 2372: /**
! 2373: * htmlParseHTMLName_nonInvasive:
! 2374: * @ctxt: an HTML parser context
! 2375: *
! 2376: * parse an HTML tag or attribute name, note that we convert it to lowercase
! 2377: * since HTML names are not case-sensitive, this doesn't consume the data
! 2378: * from the stream, it's a look-ahead
! 2379: *
! 2380: * Returns the Tag Name parsed or NULL
! 2381: */
! 2382:
! 2383: static const xmlChar *
! 2384: htmlParseHTMLName_nonInvasive(htmlParserCtxtPtr ctxt) {
! 2385: int i = 0;
! 2386: xmlChar loc[HTML_PARSER_BUFFER_SIZE];
! 2387:
! 2388: if (!IS_ASCII_LETTER(NXT(1)) && (NXT(1) != '_') &&
! 2389: (NXT(1) != ':')) return(NULL);
! 2390:
! 2391: while ((i < HTML_PARSER_BUFFER_SIZE) &&
! 2392: ((IS_ASCII_LETTER(NXT(1+i))) || (IS_ASCII_DIGIT(NXT(1+i))) ||
! 2393: (NXT(1+i) == ':') || (NXT(1+i) == '-') || (NXT(1+i) == '_'))) {
! 2394: if ((NXT(1+i) >= 'A') && (NXT(1+i) <= 'Z')) loc[i] = NXT(1+i) + 0x20;
! 2395: else loc[i] = NXT(1+i);
! 2396: i++;
! 2397: }
! 2398:
! 2399: return(xmlDictLookup(ctxt->dict, loc, i));
! 2400: }
! 2401:
! 2402:
! 2403: /**
! 2404: * htmlParseName:
! 2405: * @ctxt: an HTML parser context
! 2406: *
! 2407: * parse an HTML name, this routine is case sensitive.
! 2408: *
! 2409: * Returns the Name parsed or NULL
! 2410: */
! 2411:
! 2412: static const xmlChar *
! 2413: htmlParseName(htmlParserCtxtPtr ctxt) {
! 2414: const xmlChar *in;
! 2415: const xmlChar *ret;
! 2416: int count = 0;
! 2417:
! 2418: GROW;
! 2419:
! 2420: /*
! 2421: * Accelerator for simple ASCII names
! 2422: */
! 2423: in = ctxt->input->cur;
! 2424: if (((*in >= 0x61) && (*in <= 0x7A)) ||
! 2425: ((*in >= 0x41) && (*in <= 0x5A)) ||
! 2426: (*in == '_') || (*in == ':')) {
! 2427: in++;
! 2428: while (((*in >= 0x61) && (*in <= 0x7A)) ||
! 2429: ((*in >= 0x41) && (*in <= 0x5A)) ||
! 2430: ((*in >= 0x30) && (*in <= 0x39)) ||
! 2431: (*in == '_') || (*in == '-') ||
! 2432: (*in == ':') || (*in == '.'))
! 2433: in++;
! 2434: if ((*in > 0) && (*in < 0x80)) {
! 2435: count = in - ctxt->input->cur;
! 2436: ret = xmlDictLookup(ctxt->dict, ctxt->input->cur, count);
! 2437: ctxt->input->cur = in;
! 2438: ctxt->nbChars += count;
! 2439: ctxt->input->col += count;
! 2440: return(ret);
! 2441: }
! 2442: }
! 2443: return(htmlParseNameComplex(ctxt));
! 2444: }
! 2445:
! 2446: static const xmlChar *
! 2447: htmlParseNameComplex(xmlParserCtxtPtr ctxt) {
! 2448: int len = 0, l;
! 2449: int c;
! 2450: int count = 0;
! 2451:
! 2452: /*
! 2453: * Handler for more complex cases
! 2454: */
! 2455: GROW;
! 2456: c = CUR_CHAR(l);
! 2457: if ((c == ' ') || (c == '>') || (c == '/') || /* accelerators */
! 2458: (!IS_LETTER(c) && (c != '_') &&
! 2459: (c != ':'))) {
! 2460: return(NULL);
! 2461: }
! 2462:
! 2463: while ((c != ' ') && (c != '>') && (c != '/') && /* test bigname.xml */
! 2464: ((IS_LETTER(c)) || (IS_DIGIT(c)) ||
! 2465: (c == '.') || (c == '-') ||
! 2466: (c == '_') || (c == ':') ||
! 2467: (IS_COMBINING(c)) ||
! 2468: (IS_EXTENDER(c)))) {
! 2469: if (count++ > 100) {
! 2470: count = 0;
! 2471: GROW;
! 2472: }
! 2473: len += l;
! 2474: NEXTL(l);
! 2475: c = CUR_CHAR(l);
! 2476: }
! 2477: return(xmlDictLookup(ctxt->dict, ctxt->input->cur - len, len));
! 2478: }
! 2479:
! 2480:
! 2481: /**
! 2482: * htmlParseHTMLAttribute:
! 2483: * @ctxt: an HTML parser context
! 2484: * @stop: a char stop value
! 2485: *
! 2486: * parse an HTML attribute value till the stop (quote), if
! 2487: * stop is 0 then it stops at the first space
! 2488: *
! 2489: * Returns the attribute parsed or NULL
! 2490: */
! 2491:
! 2492: static xmlChar *
! 2493: htmlParseHTMLAttribute(htmlParserCtxtPtr ctxt, const xmlChar stop) {
! 2494: xmlChar *buffer = NULL;
! 2495: int buffer_size = 0;
! 2496: xmlChar *out = NULL;
! 2497: const xmlChar *name = NULL;
! 2498: const xmlChar *cur = NULL;
! 2499: const htmlEntityDesc * ent;
! 2500:
! 2501: /*
! 2502: * allocate a translation buffer.
! 2503: */
! 2504: buffer_size = HTML_PARSER_BUFFER_SIZE;
! 2505: buffer = (xmlChar *) xmlMallocAtomic(buffer_size * sizeof(xmlChar));
! 2506: if (buffer == NULL) {
! 2507: htmlErrMemory(ctxt, "buffer allocation failed\n");
! 2508: return(NULL);
! 2509: }
! 2510: out = buffer;
! 2511:
! 2512: /*
! 2513: * Ok loop until we reach one of the ending chars
! 2514: */
! 2515: while ((CUR != 0) && (CUR != stop)) {
! 2516: if ((stop == 0) && (CUR == '>')) break;
! 2517: if ((stop == 0) && (IS_BLANK_CH(CUR))) break;
! 2518: if (CUR == '&') {
! 2519: if (NXT(1) == '#') {
! 2520: unsigned int c;
! 2521: int bits;
! 2522:
! 2523: c = htmlParseCharRef(ctxt);
! 2524: if (c < 0x80)
! 2525: { *out++ = c; bits= -6; }
! 2526: else if (c < 0x800)
! 2527: { *out++ =((c >> 6) & 0x1F) | 0xC0; bits= 0; }
! 2528: else if (c < 0x10000)
! 2529: { *out++ =((c >> 12) & 0x0F) | 0xE0; bits= 6; }
! 2530: else
! 2531: { *out++ =((c >> 18) & 0x07) | 0xF0; bits= 12; }
! 2532:
! 2533: for ( ; bits >= 0; bits-= 6) {
! 2534: *out++ = ((c >> bits) & 0x3F) | 0x80;
! 2535: }
! 2536:
! 2537: if (out - buffer > buffer_size - 100) {
! 2538: int indx = out - buffer;
! 2539:
! 2540: growBuffer(buffer);
! 2541: out = &buffer[indx];
! 2542: }
! 2543: } else {
! 2544: ent = htmlParseEntityRef(ctxt, &name);
! 2545: if (name == NULL) {
! 2546: *out++ = '&';
! 2547: if (out - buffer > buffer_size - 100) {
! 2548: int indx = out - buffer;
! 2549:
! 2550: growBuffer(buffer);
! 2551: out = &buffer[indx];
! 2552: }
! 2553: } else if (ent == NULL) {
! 2554: *out++ = '&';
! 2555: cur = name;
! 2556: while (*cur != 0) {
! 2557: if (out - buffer > buffer_size - 100) {
! 2558: int indx = out - buffer;
! 2559:
! 2560: growBuffer(buffer);
! 2561: out = &buffer[indx];
! 2562: }
! 2563: *out++ = *cur++;
! 2564: }
! 2565: } else {
! 2566: unsigned int c;
! 2567: int bits;
! 2568:
! 2569: if (out - buffer > buffer_size - 100) {
! 2570: int indx = out - buffer;
! 2571:
! 2572: growBuffer(buffer);
! 2573: out = &buffer[indx];
! 2574: }
! 2575: c = ent->value;
! 2576: if (c < 0x80)
! 2577: { *out++ = c; bits= -6; }
! 2578: else if (c < 0x800)
! 2579: { *out++ =((c >> 6) & 0x1F) | 0xC0; bits= 0; }
! 2580: else if (c < 0x10000)
! 2581: { *out++ =((c >> 12) & 0x0F) | 0xE0; bits= 6; }
! 2582: else
! 2583: { *out++ =((c >> 18) & 0x07) | 0xF0; bits= 12; }
! 2584:
! 2585: for ( ; bits >= 0; bits-= 6) {
! 2586: *out++ = ((c >> bits) & 0x3F) | 0x80;
! 2587: }
! 2588: }
! 2589: }
! 2590: } else {
! 2591: unsigned int c;
! 2592: int bits, l;
! 2593:
! 2594: if (out - buffer > buffer_size - 100) {
! 2595: int indx = out - buffer;
! 2596:
! 2597: growBuffer(buffer);
! 2598: out = &buffer[indx];
! 2599: }
! 2600: c = CUR_CHAR(l);
! 2601: if (c < 0x80)
! 2602: { *out++ = c; bits= -6; }
! 2603: else if (c < 0x800)
! 2604: { *out++ =((c >> 6) & 0x1F) | 0xC0; bits= 0; }
! 2605: else if (c < 0x10000)
! 2606: { *out++ =((c >> 12) & 0x0F) | 0xE0; bits= 6; }
! 2607: else
! 2608: { *out++ =((c >> 18) & 0x07) | 0xF0; bits= 12; }
! 2609:
! 2610: for ( ; bits >= 0; bits-= 6) {
! 2611: *out++ = ((c >> bits) & 0x3F) | 0x80;
! 2612: }
! 2613: NEXT;
! 2614: }
! 2615: }
! 2616: *out = 0;
! 2617: return(buffer);
! 2618: }
! 2619:
! 2620: /**
! 2621: * htmlParseEntityRef:
! 2622: * @ctxt: an HTML parser context
! 2623: * @str: location to store the entity name
! 2624: *
! 2625: * parse an HTML ENTITY references
! 2626: *
! 2627: * [68] EntityRef ::= '&' Name ';'
! 2628: *
! 2629: * Returns the associated htmlEntityDescPtr if found, or NULL otherwise,
! 2630: * if non-NULL *str will have to be freed by the caller.
! 2631: */
! 2632: const htmlEntityDesc *
! 2633: htmlParseEntityRef(htmlParserCtxtPtr ctxt, const xmlChar **str) {
! 2634: const xmlChar *name;
! 2635: const htmlEntityDesc * ent = NULL;
! 2636:
! 2637: if (str != NULL) *str = NULL;
! 2638: if ((ctxt == NULL) || (ctxt->input == NULL)) return(NULL);
! 2639:
! 2640: if (CUR == '&') {
! 2641: NEXT;
! 2642: name = htmlParseName(ctxt);
! 2643: if (name == NULL) {
! 2644: htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED,
! 2645: "htmlParseEntityRef: no name\n", NULL, NULL);
! 2646: } else {
! 2647: GROW;
! 2648: if (CUR == ';') {
! 2649: if (str != NULL)
! 2650: *str = name;
! 2651:
! 2652: /*
! 2653: * Lookup the entity in the table.
! 2654: */
! 2655: ent = htmlEntityLookup(name);
! 2656: if (ent != NULL) /* OK that's ugly !!! */
! 2657: NEXT;
! 2658: } else {
! 2659: htmlParseErr(ctxt, XML_ERR_ENTITYREF_SEMICOL_MISSING,
! 2660: "htmlParseEntityRef: expecting ';'\n",
! 2661: NULL, NULL);
! 2662: if (str != NULL)
! 2663: *str = name;
! 2664: }
! 2665: }
! 2666: }
! 2667: return(ent);
! 2668: }
! 2669:
! 2670: /**
! 2671: * htmlParseAttValue:
! 2672: * @ctxt: an HTML parser context
! 2673: *
! 2674: * parse a value for an attribute
! 2675: * Note: the parser won't do substitution of entities here, this
! 2676: * will be handled later in xmlStringGetNodeList, unless it was
! 2677: * asked for ctxt->replaceEntities != 0
! 2678: *
! 2679: * Returns the AttValue parsed or NULL.
! 2680: */
! 2681:
! 2682: static xmlChar *
! 2683: htmlParseAttValue(htmlParserCtxtPtr ctxt) {
! 2684: xmlChar *ret = NULL;
! 2685:
! 2686: if (CUR == '"') {
! 2687: NEXT;
! 2688: ret = htmlParseHTMLAttribute(ctxt, '"');
! 2689: if (CUR != '"') {
! 2690: htmlParseErr(ctxt, XML_ERR_ATTRIBUTE_NOT_FINISHED,
! 2691: "AttValue: \" expected\n", NULL, NULL);
! 2692: } else
! 2693: NEXT;
! 2694: } else if (CUR == '\'') {
! 2695: NEXT;
! 2696: ret = htmlParseHTMLAttribute(ctxt, '\'');
! 2697: if (CUR != '\'') {
! 2698: htmlParseErr(ctxt, XML_ERR_ATTRIBUTE_NOT_FINISHED,
! 2699: "AttValue: ' expected\n", NULL, NULL);
! 2700: } else
! 2701: NEXT;
! 2702: } else {
! 2703: /*
! 2704: * That's an HTMLism, the attribute value may not be quoted
! 2705: */
! 2706: ret = htmlParseHTMLAttribute(ctxt, 0);
! 2707: if (ret == NULL) {
! 2708: htmlParseErr(ctxt, XML_ERR_ATTRIBUTE_WITHOUT_VALUE,
! 2709: "AttValue: no value found\n", NULL, NULL);
! 2710: }
! 2711: }
! 2712: return(ret);
! 2713: }
! 2714:
! 2715: /**
! 2716: * htmlParseSystemLiteral:
! 2717: * @ctxt: an HTML parser context
! 2718: *
! 2719: * parse an HTML Literal
! 2720: *
! 2721: * [11] SystemLiteral ::= ('"' [^"]* '"') | ("'" [^']* "'")
! 2722: *
! 2723: * Returns the SystemLiteral parsed or NULL
! 2724: */
! 2725:
! 2726: static xmlChar *
! 2727: htmlParseSystemLiteral(htmlParserCtxtPtr ctxt) {
! 2728: const xmlChar *q;
! 2729: xmlChar *ret = NULL;
! 2730:
! 2731: if (CUR == '"') {
! 2732: NEXT;
! 2733: q = CUR_PTR;
! 2734: while ((IS_CHAR_CH(CUR)) && (CUR != '"'))
! 2735: NEXT;
! 2736: if (!IS_CHAR_CH(CUR)) {
! 2737: htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_FINISHED,
! 2738: "Unfinished SystemLiteral\n", NULL, NULL);
! 2739: } else {
! 2740: ret = xmlStrndup(q, CUR_PTR - q);
! 2741: NEXT;
! 2742: }
! 2743: } else if (CUR == '\'') {
! 2744: NEXT;
! 2745: q = CUR_PTR;
! 2746: while ((IS_CHAR_CH(CUR)) && (CUR != '\''))
! 2747: NEXT;
! 2748: if (!IS_CHAR_CH(CUR)) {
! 2749: htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_FINISHED,
! 2750: "Unfinished SystemLiteral\n", NULL, NULL);
! 2751: } else {
! 2752: ret = xmlStrndup(q, CUR_PTR - q);
! 2753: NEXT;
! 2754: }
! 2755: } else {
! 2756: htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_STARTED,
! 2757: " or ' expected\n", NULL, NULL);
! 2758: }
! 2759:
! 2760: return(ret);
! 2761: }
! 2762:
! 2763: /**
! 2764: * htmlParsePubidLiteral:
! 2765: * @ctxt: an HTML parser context
! 2766: *
! 2767: * parse an HTML public literal
! 2768: *
! 2769: * [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'"
! 2770: *
! 2771: * Returns the PubidLiteral parsed or NULL.
! 2772: */
! 2773:
! 2774: static xmlChar *
! 2775: htmlParsePubidLiteral(htmlParserCtxtPtr ctxt) {
! 2776: const xmlChar *q;
! 2777: xmlChar *ret = NULL;
! 2778: /*
! 2779: * Name ::= (Letter | '_') (NameChar)*
! 2780: */
! 2781: if (CUR == '"') {
! 2782: NEXT;
! 2783: q = CUR_PTR;
! 2784: while (IS_PUBIDCHAR_CH(CUR)) NEXT;
! 2785: if (CUR != '"') {
! 2786: htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_FINISHED,
! 2787: "Unfinished PubidLiteral\n", NULL, NULL);
! 2788: } else {
! 2789: ret = xmlStrndup(q, CUR_PTR - q);
! 2790: NEXT;
! 2791: }
! 2792: } else if (CUR == '\'') {
! 2793: NEXT;
! 2794: q = CUR_PTR;
! 2795: while ((IS_PUBIDCHAR_CH(CUR)) && (CUR != '\''))
! 2796: NEXT;
! 2797: if (CUR != '\'') {
! 2798: htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_FINISHED,
! 2799: "Unfinished PubidLiteral\n", NULL, NULL);
! 2800: } else {
! 2801: ret = xmlStrndup(q, CUR_PTR - q);
! 2802: NEXT;
! 2803: }
! 2804: } else {
! 2805: htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_STARTED,
! 2806: "PubidLiteral \" or ' expected\n", NULL, NULL);
! 2807: }
! 2808:
! 2809: return(ret);
! 2810: }
! 2811:
! 2812: /**
! 2813: * htmlParseScript:
! 2814: * @ctxt: an HTML parser context
! 2815: *
! 2816: * parse the content of an HTML SCRIPT or STYLE element
! 2817: * http://www.w3.org/TR/html4/sgml/dtd.html#Script
! 2818: * http://www.w3.org/TR/html4/sgml/dtd.html#StyleSheet
! 2819: * http://www.w3.org/TR/html4/types.html#type-script
! 2820: * http://www.w3.org/TR/html4/types.html#h-6.15
! 2821: * http://www.w3.org/TR/html4/appendix/notes.html#h-B.3.2.1
! 2822: *
! 2823: * Script data ( %Script; in the DTD) can be the content of the SCRIPT
! 2824: * element and the value of intrinsic event attributes. User agents must
! 2825: * not evaluate script data as HTML markup but instead must pass it on as
! 2826: * data to a script engine.
! 2827: * NOTES:
! 2828: * - The content is passed like CDATA
! 2829: * - the attributes for style and scripting "onXXX" are also described
! 2830: * as CDATA but SGML allows entities references in attributes so their
! 2831: * processing is identical as other attributes
! 2832: */
! 2833: static void
! 2834: htmlParseScript(htmlParserCtxtPtr ctxt) {
! 2835: xmlChar buf[HTML_PARSER_BIG_BUFFER_SIZE + 5];
! 2836: int nbchar = 0;
! 2837: int cur,l;
! 2838:
! 2839: SHRINK;
! 2840: cur = CUR_CHAR(l);
! 2841: while (IS_CHAR_CH(cur)) {
! 2842: if ((cur == '<') && (NXT(1) == '/')) {
! 2843: /*
! 2844: * One should break here, the specification is clear:
! 2845: * Authors should therefore escape "</" within the content.
! 2846: * Escape mechanisms are specific to each scripting or
! 2847: * style sheet language.
! 2848: *
! 2849: * In recovery mode, only break if end tag match the
! 2850: * current tag, effectively ignoring all tags inside the
! 2851: * script/style block and treating the entire block as
! 2852: * CDATA.
! 2853: */
! 2854: if (ctxt->recovery) {
! 2855: if (xmlStrncasecmp(ctxt->name, ctxt->input->cur+2,
! 2856: xmlStrlen(ctxt->name)) == 0)
! 2857: {
! 2858: break; /* while */
! 2859: } else {
! 2860: htmlParseErr(ctxt, XML_ERR_TAG_NAME_MISMATCH,
! 2861: "Element %s embeds close tag\n",
! 2862: ctxt->name, NULL);
! 2863: }
! 2864: } else {
! 2865: if (((NXT(2) >= 'A') && (NXT(2) <= 'Z')) ||
! 2866: ((NXT(2) >= 'a') && (NXT(2) <= 'z')))
! 2867: {
! 2868: break; /* while */
! 2869: }
! 2870: }
! 2871: }
! 2872: COPY_BUF(l,buf,nbchar,cur);
! 2873: if (nbchar >= HTML_PARSER_BIG_BUFFER_SIZE) {
! 2874: if (ctxt->sax->cdataBlock!= NULL) {
! 2875: /*
! 2876: * Insert as CDATA, which is the same as HTML_PRESERVE_NODE
! 2877: */
! 2878: ctxt->sax->cdataBlock(ctxt->userData, buf, nbchar);
! 2879: } else if (ctxt->sax->characters != NULL) {
! 2880: ctxt->sax->characters(ctxt->userData, buf, nbchar);
! 2881: }
! 2882: nbchar = 0;
! 2883: }
! 2884: GROW;
! 2885: NEXTL(l);
! 2886: cur = CUR_CHAR(l);
! 2887: }
! 2888:
! 2889: if ((!(IS_CHAR_CH(cur))) && (!((cur == 0) && (ctxt->progressive)))) {
! 2890: htmlParseErrInt(ctxt, XML_ERR_INVALID_CHAR,
! 2891: "Invalid char in CDATA 0x%X\n", cur);
! 2892: if (ctxt->input->cur < ctxt->input->end) {
! 2893: NEXT;
! 2894: }
! 2895: }
! 2896:
! 2897: if ((nbchar != 0) && (ctxt->sax != NULL) && (!ctxt->disableSAX)) {
! 2898: if (ctxt->sax->cdataBlock!= NULL) {
! 2899: /*
! 2900: * Insert as CDATA, which is the same as HTML_PRESERVE_NODE
! 2901: */
! 2902: ctxt->sax->cdataBlock(ctxt->userData, buf, nbchar);
! 2903: } else if (ctxt->sax->characters != NULL) {
! 2904: ctxt->sax->characters(ctxt->userData, buf, nbchar);
! 2905: }
! 2906: }
! 2907: }
! 2908:
! 2909:
! 2910: /**
! 2911: * htmlParseCharData:
! 2912: * @ctxt: an HTML parser context
! 2913: *
! 2914: * parse a CharData section.
! 2915: * if we are within a CDATA section ']]>' marks an end of section.
! 2916: *
! 2917: * [14] CharData ::= [^<&]* - ([^<&]* ']]>' [^<&]*)
! 2918: */
! 2919:
! 2920: static void
! 2921: htmlParseCharData(htmlParserCtxtPtr ctxt) {
! 2922: xmlChar buf[HTML_PARSER_BIG_BUFFER_SIZE + 5];
! 2923: int nbchar = 0;
! 2924: int cur, l;
! 2925: int chunk = 0;
! 2926:
! 2927: SHRINK;
! 2928: cur = CUR_CHAR(l);
! 2929: while (((cur != '<') || (ctxt->token == '<')) &&
! 2930: ((cur != '&') || (ctxt->token == '&')) &&
! 2931: (cur != 0)) {
! 2932: if (!(IS_CHAR(cur))) {
! 2933: htmlParseErrInt(ctxt, XML_ERR_INVALID_CHAR,
! 2934: "Invalid char in CDATA 0x%X\n", cur);
! 2935: } else {
! 2936: COPY_BUF(l,buf,nbchar,cur);
! 2937: }
! 2938: if (nbchar >= HTML_PARSER_BIG_BUFFER_SIZE) {
! 2939: /*
! 2940: * Ok the segment is to be consumed as chars.
! 2941: */
! 2942: if ((ctxt->sax != NULL) && (!ctxt->disableSAX)) {
! 2943: if (areBlanks(ctxt, buf, nbchar)) {
! 2944: if (ctxt->sax->ignorableWhitespace != NULL)
! 2945: ctxt->sax->ignorableWhitespace(ctxt->userData,
! 2946: buf, nbchar);
! 2947: } else {
! 2948: htmlCheckParagraph(ctxt);
! 2949: if (ctxt->sax->characters != NULL)
! 2950: ctxt->sax->characters(ctxt->userData, buf, nbchar);
! 2951: }
! 2952: }
! 2953: nbchar = 0;
! 2954: }
! 2955: NEXTL(l);
! 2956: chunk++;
! 2957: if (chunk > HTML_PARSER_BUFFER_SIZE) {
! 2958: chunk = 0;
! 2959: SHRINK;
! 2960: GROW;
! 2961: }
! 2962: cur = CUR_CHAR(l);
! 2963: if (cur == 0) {
! 2964: SHRINK;
! 2965: GROW;
! 2966: cur = CUR_CHAR(l);
! 2967: }
! 2968: }
! 2969: if (nbchar != 0) {
! 2970: buf[nbchar] = 0;
! 2971:
! 2972: /*
! 2973: * Ok the segment is to be consumed as chars.
! 2974: */
! 2975: if ((ctxt->sax != NULL) && (!ctxt->disableSAX)) {
! 2976: if (areBlanks(ctxt, buf, nbchar)) {
! 2977: if (ctxt->sax->ignorableWhitespace != NULL)
! 2978: ctxt->sax->ignorableWhitespace(ctxt->userData, buf, nbchar);
! 2979: } else {
! 2980: htmlCheckParagraph(ctxt);
! 2981: if (ctxt->sax->characters != NULL)
! 2982: ctxt->sax->characters(ctxt->userData, buf, nbchar);
! 2983: }
! 2984: }
! 2985: } else {
! 2986: /*
! 2987: * Loop detection
! 2988: */
! 2989: if (cur == 0)
! 2990: ctxt->instate = XML_PARSER_EOF;
! 2991: }
! 2992: }
! 2993:
! 2994: /**
! 2995: * htmlParseExternalID:
! 2996: * @ctxt: an HTML parser context
! 2997: * @publicID: a xmlChar** receiving PubidLiteral
! 2998: *
! 2999: * Parse an External ID or a Public ID
! 3000: *
! 3001: * [75] ExternalID ::= 'SYSTEM' S SystemLiteral
! 3002: * | 'PUBLIC' S PubidLiteral S SystemLiteral
! 3003: *
! 3004: * [83] PublicID ::= 'PUBLIC' S PubidLiteral
! 3005: *
! 3006: * Returns the function returns SystemLiteral and in the second
! 3007: * case publicID receives PubidLiteral, is strict is off
! 3008: * it is possible to return NULL and have publicID set.
! 3009: */
! 3010:
! 3011: static xmlChar *
! 3012: htmlParseExternalID(htmlParserCtxtPtr ctxt, xmlChar **publicID) {
! 3013: xmlChar *URI = NULL;
! 3014:
! 3015: if ((UPPER == 'S') && (UPP(1) == 'Y') &&
! 3016: (UPP(2) == 'S') && (UPP(3) == 'T') &&
! 3017: (UPP(4) == 'E') && (UPP(5) == 'M')) {
! 3018: SKIP(6);
! 3019: if (!IS_BLANK_CH(CUR)) {
! 3020: htmlParseErr(ctxt, XML_ERR_SPACE_REQUIRED,
! 3021: "Space required after 'SYSTEM'\n", NULL, NULL);
! 3022: }
! 3023: SKIP_BLANKS;
! 3024: URI = htmlParseSystemLiteral(ctxt);
! 3025: if (URI == NULL) {
! 3026: htmlParseErr(ctxt, XML_ERR_URI_REQUIRED,
! 3027: "htmlParseExternalID: SYSTEM, no URI\n", NULL, NULL);
! 3028: }
! 3029: } else if ((UPPER == 'P') && (UPP(1) == 'U') &&
! 3030: (UPP(2) == 'B') && (UPP(3) == 'L') &&
! 3031: (UPP(4) == 'I') && (UPP(5) == 'C')) {
! 3032: SKIP(6);
! 3033: if (!IS_BLANK_CH(CUR)) {
! 3034: htmlParseErr(ctxt, XML_ERR_SPACE_REQUIRED,
! 3035: "Space required after 'PUBLIC'\n", NULL, NULL);
! 3036: }
! 3037: SKIP_BLANKS;
! 3038: *publicID = htmlParsePubidLiteral(ctxt);
! 3039: if (*publicID == NULL) {
! 3040: htmlParseErr(ctxt, XML_ERR_PUBID_REQUIRED,
! 3041: "htmlParseExternalID: PUBLIC, no Public Identifier\n",
! 3042: NULL, NULL);
! 3043: }
! 3044: SKIP_BLANKS;
! 3045: if ((CUR == '"') || (CUR == '\'')) {
! 3046: URI = htmlParseSystemLiteral(ctxt);
! 3047: }
! 3048: }
! 3049: return(URI);
! 3050: }
! 3051:
! 3052: /**
! 3053: * xmlParsePI:
! 3054: * @ctxt: an XML parser context
! 3055: *
! 3056: * parse an XML Processing Instruction.
! 3057: *
! 3058: * [16] PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char*)))? '?>'
! 3059: */
! 3060: static void
! 3061: htmlParsePI(htmlParserCtxtPtr ctxt) {
! 3062: xmlChar *buf = NULL;
! 3063: int len = 0;
! 3064: int size = HTML_PARSER_BUFFER_SIZE;
! 3065: int cur, l;
! 3066: const xmlChar *target;
! 3067: xmlParserInputState state;
! 3068: int count = 0;
! 3069:
! 3070: if ((RAW == '<') && (NXT(1) == '?')) {
! 3071: state = ctxt->instate;
! 3072: ctxt->instate = XML_PARSER_PI;
! 3073: /*
! 3074: * this is a Processing Instruction.
! 3075: */
! 3076: SKIP(2);
! 3077: SHRINK;
! 3078:
! 3079: /*
! 3080: * Parse the target name and check for special support like
! 3081: * namespace.
! 3082: */
! 3083: target = htmlParseName(ctxt);
! 3084: if (target != NULL) {
! 3085: if (RAW == '>') {
! 3086: SKIP(1);
! 3087:
! 3088: /*
! 3089: * SAX: PI detected.
! 3090: */
! 3091: if ((ctxt->sax) && (!ctxt->disableSAX) &&
! 3092: (ctxt->sax->processingInstruction != NULL))
! 3093: ctxt->sax->processingInstruction(ctxt->userData,
! 3094: target, NULL);
! 3095: ctxt->instate = state;
! 3096: return;
! 3097: }
! 3098: buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar));
! 3099: if (buf == NULL) {
! 3100: htmlErrMemory(ctxt, NULL);
! 3101: ctxt->instate = state;
! 3102: return;
! 3103: }
! 3104: cur = CUR;
! 3105: if (!IS_BLANK(cur)) {
! 3106: htmlParseErr(ctxt, XML_ERR_SPACE_REQUIRED,
! 3107: "ParsePI: PI %s space expected\n", target, NULL);
! 3108: }
! 3109: SKIP_BLANKS;
! 3110: cur = CUR_CHAR(l);
! 3111: while (IS_CHAR(cur) && (cur != '>')) {
! 3112: if (len + 5 >= size) {
! 3113: xmlChar *tmp;
! 3114:
! 3115: size *= 2;
! 3116: tmp = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar));
! 3117: if (tmp == NULL) {
! 3118: htmlErrMemory(ctxt, NULL);
! 3119: xmlFree(buf);
! 3120: ctxt->instate = state;
! 3121: return;
! 3122: }
! 3123: buf = tmp;
! 3124: }
! 3125: count++;
! 3126: if (count > 50) {
! 3127: GROW;
! 3128: count = 0;
! 3129: }
! 3130: COPY_BUF(l,buf,len,cur);
! 3131: NEXTL(l);
! 3132: cur = CUR_CHAR(l);
! 3133: if (cur == 0) {
! 3134: SHRINK;
! 3135: GROW;
! 3136: cur = CUR_CHAR(l);
! 3137: }
! 3138: }
! 3139: buf[len] = 0;
! 3140: if (cur != '>') {
! 3141: htmlParseErr(ctxt, XML_ERR_PI_NOT_FINISHED,
! 3142: "ParsePI: PI %s never end ...\n", target, NULL);
! 3143: } else {
! 3144: SKIP(1);
! 3145:
! 3146: /*
! 3147: * SAX: PI detected.
! 3148: */
! 3149: if ((ctxt->sax) && (!ctxt->disableSAX) &&
! 3150: (ctxt->sax->processingInstruction != NULL))
! 3151: ctxt->sax->processingInstruction(ctxt->userData,
! 3152: target, buf);
! 3153: }
! 3154: xmlFree(buf);
! 3155: } else {
! 3156: htmlParseErr(ctxt, XML_ERR_PI_NOT_STARTED,
! 3157: "PI is not started correctly", NULL, NULL);
! 3158: }
! 3159: ctxt->instate = state;
! 3160: }
! 3161: }
! 3162:
! 3163: /**
! 3164: * htmlParseComment:
! 3165: * @ctxt: an HTML parser context
! 3166: *
! 3167: * Parse an XML (SGML) comment <!-- .... -->
! 3168: *
! 3169: * [15] Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'
! 3170: */
! 3171: static void
! 3172: htmlParseComment(htmlParserCtxtPtr ctxt) {
! 3173: xmlChar *buf = NULL;
! 3174: int len;
! 3175: int size = HTML_PARSER_BUFFER_SIZE;
! 3176: int q, ql;
! 3177: int r, rl;
! 3178: int cur, l;
! 3179: xmlParserInputState state;
! 3180:
! 3181: /*
! 3182: * Check that there is a comment right here.
! 3183: */
! 3184: if ((RAW != '<') || (NXT(1) != '!') ||
! 3185: (NXT(2) != '-') || (NXT(3) != '-')) return;
! 3186:
! 3187: state = ctxt->instate;
! 3188: ctxt->instate = XML_PARSER_COMMENT;
! 3189: SHRINK;
! 3190: SKIP(4);
! 3191: buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar));
! 3192: if (buf == NULL) {
! 3193: htmlErrMemory(ctxt, "buffer allocation failed\n");
! 3194: ctxt->instate = state;
! 3195: return;
! 3196: }
! 3197: q = CUR_CHAR(ql);
! 3198: NEXTL(ql);
! 3199: r = CUR_CHAR(rl);
! 3200: NEXTL(rl);
! 3201: cur = CUR_CHAR(l);
! 3202: len = 0;
! 3203: while (IS_CHAR(cur) &&
! 3204: ((cur != '>') ||
! 3205: (r != '-') || (q != '-'))) {
! 3206: if (len + 5 >= size) {
! 3207: xmlChar *tmp;
! 3208:
! 3209: size *= 2;
! 3210: tmp = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar));
! 3211: if (tmp == NULL) {
! 3212: xmlFree(buf);
! 3213: htmlErrMemory(ctxt, "growing buffer failed\n");
! 3214: ctxt->instate = state;
! 3215: return;
! 3216: }
! 3217: buf = tmp;
! 3218: }
! 3219: COPY_BUF(ql,buf,len,q);
! 3220: q = r;
! 3221: ql = rl;
! 3222: r = cur;
! 3223: rl = l;
! 3224: NEXTL(l);
! 3225: cur = CUR_CHAR(l);
! 3226: if (cur == 0) {
! 3227: SHRINK;
! 3228: GROW;
! 3229: cur = CUR_CHAR(l);
! 3230: }
! 3231: }
! 3232: buf[len] = 0;
! 3233: if (!IS_CHAR(cur)) {
! 3234: htmlParseErr(ctxt, XML_ERR_COMMENT_NOT_FINISHED,
! 3235: "Comment not terminated \n<!--%.50s\n", buf, NULL);
! 3236: xmlFree(buf);
! 3237: } else {
! 3238: NEXT;
! 3239: if ((ctxt->sax != NULL) && (ctxt->sax->comment != NULL) &&
! 3240: (!ctxt->disableSAX))
! 3241: ctxt->sax->comment(ctxt->userData, buf);
! 3242: xmlFree(buf);
! 3243: }
! 3244: ctxt->instate = state;
! 3245: }
! 3246:
! 3247: /**
! 3248: * htmlParseCharRef:
! 3249: * @ctxt: an HTML parser context
! 3250: *
! 3251: * parse Reference declarations
! 3252: *
! 3253: * [66] CharRef ::= '&#' [0-9]+ ';' |
! 3254: * '&#x' [0-9a-fA-F]+ ';'
! 3255: *
! 3256: * Returns the value parsed (as an int)
! 3257: */
! 3258: int
! 3259: htmlParseCharRef(htmlParserCtxtPtr ctxt) {
! 3260: int val = 0;
! 3261:
! 3262: if ((ctxt == NULL) || (ctxt->input == NULL)) {
! 3263: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 3264: "htmlParseCharRef: context error\n",
! 3265: NULL, NULL);
! 3266: return(0);
! 3267: }
! 3268: if ((CUR == '&') && (NXT(1) == '#') &&
! 3269: ((NXT(2) == 'x') || NXT(2) == 'X')) {
! 3270: SKIP(3);
! 3271: while (CUR != ';') {
! 3272: if ((CUR >= '0') && (CUR <= '9'))
! 3273: val = val * 16 + (CUR - '0');
! 3274: else if ((CUR >= 'a') && (CUR <= 'f'))
! 3275: val = val * 16 + (CUR - 'a') + 10;
! 3276: else if ((CUR >= 'A') && (CUR <= 'F'))
! 3277: val = val * 16 + (CUR - 'A') + 10;
! 3278: else {
! 3279: htmlParseErr(ctxt, XML_ERR_INVALID_HEX_CHARREF,
! 3280: "htmlParseCharRef: missing semicolon\n",
! 3281: NULL, NULL);
! 3282: break;
! 3283: }
! 3284: NEXT;
! 3285: }
! 3286: if (CUR == ';')
! 3287: NEXT;
! 3288: } else if ((CUR == '&') && (NXT(1) == '#')) {
! 3289: SKIP(2);
! 3290: while (CUR != ';') {
! 3291: if ((CUR >= '0') && (CUR <= '9'))
! 3292: val = val * 10 + (CUR - '0');
! 3293: else {
! 3294: htmlParseErr(ctxt, XML_ERR_INVALID_DEC_CHARREF,
! 3295: "htmlParseCharRef: missing semicolon\n",
! 3296: NULL, NULL);
! 3297: break;
! 3298: }
! 3299: NEXT;
! 3300: }
! 3301: if (CUR == ';')
! 3302: NEXT;
! 3303: } else {
! 3304: htmlParseErr(ctxt, XML_ERR_INVALID_CHARREF,
! 3305: "htmlParseCharRef: invalid value\n", NULL, NULL);
! 3306: }
! 3307: /*
! 3308: * Check the value IS_CHAR ...
! 3309: */
! 3310: if (IS_CHAR(val)) {
! 3311: return(val);
! 3312: } else {
! 3313: htmlParseErrInt(ctxt, XML_ERR_INVALID_CHAR,
! 3314: "htmlParseCharRef: invalid xmlChar value %d\n",
! 3315: val);
! 3316: }
! 3317: return(0);
! 3318: }
! 3319:
! 3320:
! 3321: /**
! 3322: * htmlParseDocTypeDecl:
! 3323: * @ctxt: an HTML parser context
! 3324: *
! 3325: * parse a DOCTYPE declaration
! 3326: *
! 3327: * [28] doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S?
! 3328: * ('[' (markupdecl | PEReference | S)* ']' S?)? '>'
! 3329: */
! 3330:
! 3331: static void
! 3332: htmlParseDocTypeDecl(htmlParserCtxtPtr ctxt) {
! 3333: const xmlChar *name;
! 3334: xmlChar *ExternalID = NULL;
! 3335: xmlChar *URI = NULL;
! 3336:
! 3337: /*
! 3338: * We know that '<!DOCTYPE' has been detected.
! 3339: */
! 3340: SKIP(9);
! 3341:
! 3342: SKIP_BLANKS;
! 3343:
! 3344: /*
! 3345: * Parse the DOCTYPE name.
! 3346: */
! 3347: name = htmlParseName(ctxt);
! 3348: if (name == NULL) {
! 3349: htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED,
! 3350: "htmlParseDocTypeDecl : no DOCTYPE name !\n",
! 3351: NULL, NULL);
! 3352: }
! 3353: /*
! 3354: * Check that upper(name) == "HTML" !!!!!!!!!!!!!
! 3355: */
! 3356:
! 3357: SKIP_BLANKS;
! 3358:
! 3359: /*
! 3360: * Check for SystemID and ExternalID
! 3361: */
! 3362: URI = htmlParseExternalID(ctxt, &ExternalID);
! 3363: SKIP_BLANKS;
! 3364:
! 3365: /*
! 3366: * We should be at the end of the DOCTYPE declaration.
! 3367: */
! 3368: if (CUR != '>') {
! 3369: htmlParseErr(ctxt, XML_ERR_DOCTYPE_NOT_FINISHED,
! 3370: "DOCTYPE improperly terminated\n", NULL, NULL);
! 3371: /* We shouldn't try to resynchronize ... */
! 3372: }
! 3373: NEXT;
! 3374:
! 3375: /*
! 3376: * Create or update the document accordingly to the DOCTYPE
! 3377: */
! 3378: if ((ctxt->sax != NULL) && (ctxt->sax->internalSubset != NULL) &&
! 3379: (!ctxt->disableSAX))
! 3380: ctxt->sax->internalSubset(ctxt->userData, name, ExternalID, URI);
! 3381:
! 3382: /*
! 3383: * Cleanup, since we don't use all those identifiers
! 3384: */
! 3385: if (URI != NULL) xmlFree(URI);
! 3386: if (ExternalID != NULL) xmlFree(ExternalID);
! 3387: }
! 3388:
! 3389: /**
! 3390: * htmlParseAttribute:
! 3391: * @ctxt: an HTML parser context
! 3392: * @value: a xmlChar ** used to store the value of the attribute
! 3393: *
! 3394: * parse an attribute
! 3395: *
! 3396: * [41] Attribute ::= Name Eq AttValue
! 3397: *
! 3398: * [25] Eq ::= S? '=' S?
! 3399: *
! 3400: * With namespace:
! 3401: *
! 3402: * [NS 11] Attribute ::= QName Eq AttValue
! 3403: *
! 3404: * Also the case QName == xmlns:??? is handled independently as a namespace
! 3405: * definition.
! 3406: *
! 3407: * Returns the attribute name, and the value in *value.
! 3408: */
! 3409:
! 3410: static const xmlChar *
! 3411: htmlParseAttribute(htmlParserCtxtPtr ctxt, xmlChar **value) {
! 3412: const xmlChar *name;
! 3413: xmlChar *val = NULL;
! 3414:
! 3415: *value = NULL;
! 3416: name = htmlParseHTMLName(ctxt);
! 3417: if (name == NULL) {
! 3418: htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED,
! 3419: "error parsing attribute name\n", NULL, NULL);
! 3420: return(NULL);
! 3421: }
! 3422:
! 3423: /*
! 3424: * read the value
! 3425: */
! 3426: SKIP_BLANKS;
! 3427: if (CUR == '=') {
! 3428: NEXT;
! 3429: SKIP_BLANKS;
! 3430: val = htmlParseAttValue(ctxt);
! 3431: }
! 3432:
! 3433: *value = val;
! 3434: return(name);
! 3435: }
! 3436:
! 3437: /**
! 3438: * htmlCheckEncoding:
! 3439: * @ctxt: an HTML parser context
! 3440: * @attvalue: the attribute value
! 3441: *
! 3442: * Checks an http-equiv attribute from a Meta tag to detect
! 3443: * the encoding
! 3444: * If a new encoding is detected the parser is switched to decode
! 3445: * it and pass UTF8
! 3446: */
! 3447: static void
! 3448: htmlCheckEncoding(htmlParserCtxtPtr ctxt, const xmlChar *attvalue) {
! 3449: const xmlChar *encoding;
! 3450:
! 3451: if ((ctxt == NULL) || (attvalue == NULL))
! 3452: return;
! 3453:
! 3454: /* do not change encoding */
! 3455: if (ctxt->input->encoding != NULL)
! 3456: return;
! 3457:
! 3458: encoding = xmlStrcasestr(attvalue, BAD_CAST"charset=");
! 3459: if (encoding != NULL) {
! 3460: encoding += 8;
! 3461: } else {
! 3462: encoding = xmlStrcasestr(attvalue, BAD_CAST"charset =");
! 3463: if (encoding != NULL)
! 3464: encoding += 9;
! 3465: }
! 3466: if (encoding != NULL) {
! 3467: xmlCharEncoding enc;
! 3468: xmlCharEncodingHandlerPtr handler;
! 3469:
! 3470: while ((*encoding == ' ') || (*encoding == '\t')) encoding++;
! 3471:
! 3472: if (ctxt->input->encoding != NULL)
! 3473: xmlFree((xmlChar *) ctxt->input->encoding);
! 3474: ctxt->input->encoding = xmlStrdup(encoding);
! 3475:
! 3476: enc = xmlParseCharEncoding((const char *) encoding);
! 3477: /*
! 3478: * registered set of known encodings
! 3479: */
! 3480: if (enc != XML_CHAR_ENCODING_ERROR) {
! 3481: if (((enc == XML_CHAR_ENCODING_UTF16LE) ||
! 3482: (enc == XML_CHAR_ENCODING_UTF16BE) ||
! 3483: (enc == XML_CHAR_ENCODING_UCS4LE) ||
! 3484: (enc == XML_CHAR_ENCODING_UCS4BE)) &&
! 3485: (ctxt->input->buf != NULL) &&
! 3486: (ctxt->input->buf->encoder == NULL)) {
! 3487: htmlParseErr(ctxt, XML_ERR_INVALID_ENCODING,
! 3488: "htmlCheckEncoding: wrong encoding meta\n",
! 3489: NULL, NULL);
! 3490: } else {
! 3491: xmlSwitchEncoding(ctxt, enc);
! 3492: }
! 3493: ctxt->charset = XML_CHAR_ENCODING_UTF8;
! 3494: } else {
! 3495: /*
! 3496: * fallback for unknown encodings
! 3497: */
! 3498: handler = xmlFindCharEncodingHandler((const char *) encoding);
! 3499: if (handler != NULL) {
! 3500: xmlSwitchToEncoding(ctxt, handler);
! 3501: ctxt->charset = XML_CHAR_ENCODING_UTF8;
! 3502: } else {
! 3503: ctxt->errNo = XML_ERR_UNSUPPORTED_ENCODING;
! 3504: }
! 3505: }
! 3506:
! 3507: if ((ctxt->input->buf != NULL) &&
! 3508: (ctxt->input->buf->encoder != NULL) &&
! 3509: (ctxt->input->buf->raw != NULL) &&
! 3510: (ctxt->input->buf->buffer != NULL)) {
! 3511: int nbchars;
! 3512: int processed;
! 3513:
! 3514: /*
! 3515: * convert as much as possible to the parser reading buffer.
! 3516: */
! 3517: processed = ctxt->input->cur - ctxt->input->base;
! 3518: xmlBufferShrink(ctxt->input->buf->buffer, processed);
! 3519: nbchars = xmlCharEncInFunc(ctxt->input->buf->encoder,
! 3520: ctxt->input->buf->buffer,
! 3521: ctxt->input->buf->raw);
! 3522: if (nbchars < 0) {
! 3523: htmlParseErr(ctxt, XML_ERR_INVALID_ENCODING,
! 3524: "htmlCheckEncoding: encoder error\n",
! 3525: NULL, NULL);
! 3526: }
! 3527: ctxt->input->base =
! 3528: ctxt->input->cur = ctxt->input->buf->buffer->content;
! 3529: ctxt->input->end =
! 3530: &ctxt->input->base[ctxt->input->buf->buffer->use];
! 3531: }
! 3532: }
! 3533: }
! 3534:
! 3535: /**
! 3536: * htmlCheckMeta:
! 3537: * @ctxt: an HTML parser context
! 3538: * @atts: the attributes values
! 3539: *
! 3540: * Checks an attributes from a Meta tag
! 3541: */
! 3542: static void
! 3543: htmlCheckMeta(htmlParserCtxtPtr ctxt, const xmlChar **atts) {
! 3544: int i;
! 3545: const xmlChar *att, *value;
! 3546: int http = 0;
! 3547: const xmlChar *content = NULL;
! 3548:
! 3549: if ((ctxt == NULL) || (atts == NULL))
! 3550: return;
! 3551:
! 3552: i = 0;
! 3553: att = atts[i++];
! 3554: while (att != NULL) {
! 3555: value = atts[i++];
! 3556: if ((value != NULL) && (!xmlStrcasecmp(att, BAD_CAST"http-equiv"))
! 3557: && (!xmlStrcasecmp(value, BAD_CAST"Content-Type")))
! 3558: http = 1;
! 3559: else if ((value != NULL) && (!xmlStrcasecmp(att, BAD_CAST"content")))
! 3560: content = value;
! 3561: att = atts[i++];
! 3562: }
! 3563: if ((http) && (content != NULL))
! 3564: htmlCheckEncoding(ctxt, content);
! 3565:
! 3566: }
! 3567:
! 3568: /**
! 3569: * htmlParseStartTag:
! 3570: * @ctxt: an HTML parser context
! 3571: *
! 3572: * parse a start of tag either for rule element or
! 3573: * EmptyElement. In both case we don't parse the tag closing chars.
! 3574: *
! 3575: * [40] STag ::= '<' Name (S Attribute)* S? '>'
! 3576: *
! 3577: * [44] EmptyElemTag ::= '<' Name (S Attribute)* S? '/>'
! 3578: *
! 3579: * With namespace:
! 3580: *
! 3581: * [NS 8] STag ::= '<' QName (S Attribute)* S? '>'
! 3582: *
! 3583: * [NS 10] EmptyElement ::= '<' QName (S Attribute)* S? '/>'
! 3584: *
! 3585: * Returns 0 in case of success, -1 in case of error and 1 if discarded
! 3586: */
! 3587:
! 3588: static int
! 3589: htmlParseStartTag(htmlParserCtxtPtr ctxt) {
! 3590: const xmlChar *name;
! 3591: const xmlChar *attname;
! 3592: xmlChar *attvalue;
! 3593: const xmlChar **atts;
! 3594: int nbatts = 0;
! 3595: int maxatts;
! 3596: int meta = 0;
! 3597: int i;
! 3598: int discardtag = 0;
! 3599:
! 3600: if (ctxt->instate == XML_PARSER_EOF)
! 3601: return(-1);
! 3602: if ((ctxt == NULL) || (ctxt->input == NULL)) {
! 3603: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 3604: "htmlParseStartTag: context error\n", NULL, NULL);
! 3605: return -1;
! 3606: }
! 3607: if (CUR != '<') return -1;
! 3608: NEXT;
! 3609:
! 3610: atts = ctxt->atts;
! 3611: maxatts = ctxt->maxatts;
! 3612:
! 3613: GROW;
! 3614: name = htmlParseHTMLName(ctxt);
! 3615: if (name == NULL) {
! 3616: htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED,
! 3617: "htmlParseStartTag: invalid element name\n",
! 3618: NULL, NULL);
! 3619: /* Dump the bogus tag like browsers do */
! 3620: while ((IS_CHAR_CH(CUR)) && (CUR != '>') &&
! 3621: (ctxt->instate != XML_PARSER_EOF))
! 3622: NEXT;
! 3623: return -1;
! 3624: }
! 3625: if (xmlStrEqual(name, BAD_CAST"meta"))
! 3626: meta = 1;
! 3627:
! 3628: /*
! 3629: * Check for auto-closure of HTML elements.
! 3630: */
! 3631: htmlAutoClose(ctxt, name);
! 3632:
! 3633: /*
! 3634: * Check for implied HTML elements.
! 3635: */
! 3636: htmlCheckImplied(ctxt, name);
! 3637:
! 3638: /*
! 3639: * Avoid html at any level > 0, head at any level != 1
! 3640: * or any attempt to recurse body
! 3641: */
! 3642: if ((ctxt->nameNr > 0) && (xmlStrEqual(name, BAD_CAST"html"))) {
! 3643: htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR,
! 3644: "htmlParseStartTag: misplaced <html> tag\n",
! 3645: name, NULL);
! 3646: discardtag = 1;
! 3647: ctxt->depth++;
! 3648: }
! 3649: if ((ctxt->nameNr != 1) &&
! 3650: (xmlStrEqual(name, BAD_CAST"head"))) {
! 3651: htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR,
! 3652: "htmlParseStartTag: misplaced <head> tag\n",
! 3653: name, NULL);
! 3654: discardtag = 1;
! 3655: ctxt->depth++;
! 3656: }
! 3657: if (xmlStrEqual(name, BAD_CAST"body")) {
! 3658: int indx;
! 3659: for (indx = 0;indx < ctxt->nameNr;indx++) {
! 3660: if (xmlStrEqual(ctxt->nameTab[indx], BAD_CAST"body")) {
! 3661: htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR,
! 3662: "htmlParseStartTag: misplaced <body> tag\n",
! 3663: name, NULL);
! 3664: discardtag = 1;
! 3665: ctxt->depth++;
! 3666: }
! 3667: }
! 3668: }
! 3669:
! 3670: /*
! 3671: * Now parse the attributes, it ends up with the ending
! 3672: *
! 3673: * (S Attribute)* S?
! 3674: */
! 3675: SKIP_BLANKS;
! 3676: while ((IS_CHAR_CH(CUR)) &&
! 3677: (CUR != '>') &&
! 3678: ((CUR != '/') || (NXT(1) != '>'))) {
! 3679: long cons = ctxt->nbChars;
! 3680:
! 3681: GROW;
! 3682: attname = htmlParseAttribute(ctxt, &attvalue);
! 3683: if (attname != NULL) {
! 3684:
! 3685: /*
! 3686: * Well formedness requires at most one declaration of an attribute
! 3687: */
! 3688: for (i = 0; i < nbatts;i += 2) {
! 3689: if (xmlStrEqual(atts[i], attname)) {
! 3690: htmlParseErr(ctxt, XML_ERR_ATTRIBUTE_REDEFINED,
! 3691: "Attribute %s redefined\n", attname, NULL);
! 3692: if (attvalue != NULL)
! 3693: xmlFree(attvalue);
! 3694: goto failed;
! 3695: }
! 3696: }
! 3697:
! 3698: /*
! 3699: * Add the pair to atts
! 3700: */
! 3701: if (atts == NULL) {
! 3702: maxatts = 22; /* allow for 10 attrs by default */
! 3703: atts = (const xmlChar **)
! 3704: xmlMalloc(maxatts * sizeof(xmlChar *));
! 3705: if (atts == NULL) {
! 3706: htmlErrMemory(ctxt, NULL);
! 3707: if (attvalue != NULL)
! 3708: xmlFree(attvalue);
! 3709: goto failed;
! 3710: }
! 3711: ctxt->atts = atts;
! 3712: ctxt->maxatts = maxatts;
! 3713: } else if (nbatts + 4 > maxatts) {
! 3714: const xmlChar **n;
! 3715:
! 3716: maxatts *= 2;
! 3717: n = (const xmlChar **) xmlRealloc((void *) atts,
! 3718: maxatts * sizeof(const xmlChar *));
! 3719: if (n == NULL) {
! 3720: htmlErrMemory(ctxt, NULL);
! 3721: if (attvalue != NULL)
! 3722: xmlFree(attvalue);
! 3723: goto failed;
! 3724: }
! 3725: atts = n;
! 3726: ctxt->atts = atts;
! 3727: ctxt->maxatts = maxatts;
! 3728: }
! 3729: atts[nbatts++] = attname;
! 3730: atts[nbatts++] = attvalue;
! 3731: atts[nbatts] = NULL;
! 3732: atts[nbatts + 1] = NULL;
! 3733: }
! 3734: else {
! 3735: if (attvalue != NULL)
! 3736: xmlFree(attvalue);
! 3737: /* Dump the bogus attribute string up to the next blank or
! 3738: * the end of the tag. */
! 3739: while ((IS_CHAR_CH(CUR)) &&
! 3740: !(IS_BLANK_CH(CUR)) && (CUR != '>') &&
! 3741: ((CUR != '/') || (NXT(1) != '>')))
! 3742: NEXT;
! 3743: }
! 3744:
! 3745: failed:
! 3746: SKIP_BLANKS;
! 3747: if (cons == ctxt->nbChars) {
! 3748: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 3749: "htmlParseStartTag: problem parsing attributes\n",
! 3750: NULL, NULL);
! 3751: break;
! 3752: }
! 3753: }
! 3754:
! 3755: /*
! 3756: * Handle specific association to the META tag
! 3757: */
! 3758: if (meta && (nbatts != 0))
! 3759: htmlCheckMeta(ctxt, atts);
! 3760:
! 3761: /*
! 3762: * SAX: Start of Element !
! 3763: */
! 3764: if (!discardtag) {
! 3765: htmlnamePush(ctxt, name);
! 3766: if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) {
! 3767: if (nbatts != 0)
! 3768: ctxt->sax->startElement(ctxt->userData, name, atts);
! 3769: else
! 3770: ctxt->sax->startElement(ctxt->userData, name, NULL);
! 3771: }
! 3772: }
! 3773:
! 3774: if (atts != NULL) {
! 3775: for (i = 1;i < nbatts;i += 2) {
! 3776: if (atts[i] != NULL)
! 3777: xmlFree((xmlChar *) atts[i]);
! 3778: }
! 3779: }
! 3780:
! 3781: return(discardtag);
! 3782: }
! 3783:
! 3784: /**
! 3785: * htmlParseEndTag:
! 3786: * @ctxt: an HTML parser context
! 3787: *
! 3788: * parse an end of tag
! 3789: *
! 3790: * [42] ETag ::= '</' Name S? '>'
! 3791: *
! 3792: * With namespace
! 3793: *
! 3794: * [NS 9] ETag ::= '</' QName S? '>'
! 3795: *
! 3796: * Returns 1 if the current level should be closed.
! 3797: */
! 3798:
! 3799: static int
! 3800: htmlParseEndTag(htmlParserCtxtPtr ctxt)
! 3801: {
! 3802: const xmlChar *name;
! 3803: const xmlChar *oldname;
! 3804: int i, ret;
! 3805:
! 3806: if ((CUR != '<') || (NXT(1) != '/')) {
! 3807: htmlParseErr(ctxt, XML_ERR_LTSLASH_REQUIRED,
! 3808: "htmlParseEndTag: '</' not found\n", NULL, NULL);
! 3809: return (0);
! 3810: }
! 3811: SKIP(2);
! 3812:
! 3813: name = htmlParseHTMLName(ctxt);
! 3814: if (name == NULL)
! 3815: return (0);
! 3816: /*
! 3817: * We should definitely be at the ending "S? '>'" part
! 3818: */
! 3819: SKIP_BLANKS;
! 3820: if ((!IS_CHAR_CH(CUR)) || (CUR != '>')) {
! 3821: htmlParseErr(ctxt, XML_ERR_GT_REQUIRED,
! 3822: "End tag : expected '>'\n", NULL, NULL);
! 3823: if (ctxt->recovery) {
! 3824: /*
! 3825: * We're not at the ending > !!
! 3826: * Error, unless in recover mode where we search forwards
! 3827: * until we find a >
! 3828: */
! 3829: while (CUR != '\0' && CUR != '>') NEXT;
! 3830: NEXT;
! 3831: }
! 3832: } else
! 3833: NEXT;
! 3834:
! 3835: /*
! 3836: * if we ignored misplaced tags in htmlParseStartTag don't pop them
! 3837: * out now.
! 3838: */
! 3839: if ((ctxt->depth > 0) &&
! 3840: (xmlStrEqual(name, BAD_CAST "html") ||
! 3841: xmlStrEqual(name, BAD_CAST "body") ||
! 3842: xmlStrEqual(name, BAD_CAST "head"))) {
! 3843: ctxt->depth--;
! 3844: return (0);
! 3845: }
! 3846:
! 3847: /*
! 3848: * If the name read is not one of the element in the parsing stack
! 3849: * then return, it's just an error.
! 3850: */
! 3851: for (i = (ctxt->nameNr - 1); i >= 0; i--) {
! 3852: if (xmlStrEqual(name, ctxt->nameTab[i]))
! 3853: break;
! 3854: }
! 3855: if (i < 0) {
! 3856: htmlParseErr(ctxt, XML_ERR_TAG_NAME_MISMATCH,
! 3857: "Unexpected end tag : %s\n", name, NULL);
! 3858: return (0);
! 3859: }
! 3860:
! 3861:
! 3862: /*
! 3863: * Check for auto-closure of HTML elements.
! 3864: */
! 3865:
! 3866: htmlAutoCloseOnClose(ctxt, name);
! 3867:
! 3868: /*
! 3869: * Well formedness constraints, opening and closing must match.
! 3870: * With the exception that the autoclose may have popped stuff out
! 3871: * of the stack.
! 3872: */
! 3873: if (!xmlStrEqual(name, ctxt->name)) {
! 3874: if ((ctxt->name != NULL) && (!xmlStrEqual(ctxt->name, name))) {
! 3875: htmlParseErr(ctxt, XML_ERR_TAG_NAME_MISMATCH,
! 3876: "Opening and ending tag mismatch: %s and %s\n",
! 3877: name, ctxt->name);
! 3878: }
! 3879: }
! 3880:
! 3881: /*
! 3882: * SAX: End of Tag
! 3883: */
! 3884: oldname = ctxt->name;
! 3885: if ((oldname != NULL) && (xmlStrEqual(oldname, name))) {
! 3886: if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
! 3887: ctxt->sax->endElement(ctxt->userData, name);
! 3888: htmlnamePop(ctxt);
! 3889: ret = 1;
! 3890: } else {
! 3891: ret = 0;
! 3892: }
! 3893:
! 3894: return (ret);
! 3895: }
! 3896:
! 3897:
! 3898: /**
! 3899: * htmlParseReference:
! 3900: * @ctxt: an HTML parser context
! 3901: *
! 3902: * parse and handle entity references in content,
! 3903: * this will end-up in a call to character() since this is either a
! 3904: * CharRef, or a predefined entity.
! 3905: */
! 3906: static void
! 3907: htmlParseReference(htmlParserCtxtPtr ctxt) {
! 3908: const htmlEntityDesc * ent;
! 3909: xmlChar out[6];
! 3910: const xmlChar *name;
! 3911: if (CUR != '&') return;
! 3912:
! 3913: if (NXT(1) == '#') {
! 3914: unsigned int c;
! 3915: int bits, i = 0;
! 3916:
! 3917: c = htmlParseCharRef(ctxt);
! 3918: if (c == 0)
! 3919: return;
! 3920:
! 3921: if (c < 0x80) { out[i++]= c; bits= -6; }
! 3922: else if (c < 0x800) { out[i++]=((c >> 6) & 0x1F) | 0xC0; bits= 0; }
! 3923: else if (c < 0x10000) { out[i++]=((c >> 12) & 0x0F) | 0xE0; bits= 6; }
! 3924: else { out[i++]=((c >> 18) & 0x07) | 0xF0; bits= 12; }
! 3925:
! 3926: for ( ; bits >= 0; bits-= 6) {
! 3927: out[i++]= ((c >> bits) & 0x3F) | 0x80;
! 3928: }
! 3929: out[i] = 0;
! 3930:
! 3931: htmlCheckParagraph(ctxt);
! 3932: if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL))
! 3933: ctxt->sax->characters(ctxt->userData, out, i);
! 3934: } else {
! 3935: ent = htmlParseEntityRef(ctxt, &name);
! 3936: if (name == NULL) {
! 3937: htmlCheckParagraph(ctxt);
! 3938: if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL))
! 3939: ctxt->sax->characters(ctxt->userData, BAD_CAST "&", 1);
! 3940: return;
! 3941: }
! 3942: if ((ent == NULL) || !(ent->value > 0)) {
! 3943: htmlCheckParagraph(ctxt);
! 3944: if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL)) {
! 3945: ctxt->sax->characters(ctxt->userData, BAD_CAST "&", 1);
! 3946: ctxt->sax->characters(ctxt->userData, name, xmlStrlen(name));
! 3947: /* ctxt->sax->characters(ctxt->userData, BAD_CAST ";", 1); */
! 3948: }
! 3949: } else {
! 3950: unsigned int c;
! 3951: int bits, i = 0;
! 3952:
! 3953: c = ent->value;
! 3954: if (c < 0x80)
! 3955: { out[i++]= c; bits= -6; }
! 3956: else if (c < 0x800)
! 3957: { out[i++]=((c >> 6) & 0x1F) | 0xC0; bits= 0; }
! 3958: else if (c < 0x10000)
! 3959: { out[i++]=((c >> 12) & 0x0F) | 0xE0; bits= 6; }
! 3960: else
! 3961: { out[i++]=((c >> 18) & 0x07) | 0xF0; bits= 12; }
! 3962:
! 3963: for ( ; bits >= 0; bits-= 6) {
! 3964: out[i++]= ((c >> bits) & 0x3F) | 0x80;
! 3965: }
! 3966: out[i] = 0;
! 3967:
! 3968: htmlCheckParagraph(ctxt);
! 3969: if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL))
! 3970: ctxt->sax->characters(ctxt->userData, out, i);
! 3971: }
! 3972: }
! 3973: }
! 3974:
! 3975: /**
! 3976: * htmlParseContent:
! 3977: * @ctxt: an HTML parser context
! 3978: *
! 3979: * Parse a content: comment, sub-element, reference or text.
! 3980: * Kept for compatibility with old code
! 3981: */
! 3982:
! 3983: static void
! 3984: htmlParseContent(htmlParserCtxtPtr ctxt) {
! 3985: xmlChar *currentNode;
! 3986: int depth;
! 3987: const xmlChar *name;
! 3988:
! 3989: currentNode = xmlStrdup(ctxt->name);
! 3990: depth = ctxt->nameNr;
! 3991: while (1) {
! 3992: long cons = ctxt->nbChars;
! 3993:
! 3994: GROW;
! 3995:
! 3996: if (ctxt->instate == XML_PARSER_EOF)
! 3997: break;
! 3998:
! 3999: /*
! 4000: * Our tag or one of it's parent or children is ending.
! 4001: */
! 4002: if ((CUR == '<') && (NXT(1) == '/')) {
! 4003: if (htmlParseEndTag(ctxt) &&
! 4004: ((currentNode != NULL) || (ctxt->nameNr == 0))) {
! 4005: if (currentNode != NULL)
! 4006: xmlFree(currentNode);
! 4007: return;
! 4008: }
! 4009: continue; /* while */
! 4010: }
! 4011:
! 4012: else if ((CUR == '<') &&
! 4013: ((IS_ASCII_LETTER(NXT(1))) ||
! 4014: (NXT(1) == '_') || (NXT(1) == ':'))) {
! 4015: name = htmlParseHTMLName_nonInvasive(ctxt);
! 4016: if (name == NULL) {
! 4017: htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED,
! 4018: "htmlParseStartTag: invalid element name\n",
! 4019: NULL, NULL);
! 4020: /* Dump the bogus tag like browsers do */
! 4021: while ((IS_CHAR_CH(CUR)) && (CUR != '>'))
! 4022: NEXT;
! 4023:
! 4024: if (currentNode != NULL)
! 4025: xmlFree(currentNode);
! 4026: return;
! 4027: }
! 4028:
! 4029: if (ctxt->name != NULL) {
! 4030: if (htmlCheckAutoClose(name, ctxt->name) == 1) {
! 4031: htmlAutoClose(ctxt, name);
! 4032: continue;
! 4033: }
! 4034: }
! 4035: }
! 4036:
! 4037: /*
! 4038: * Has this node been popped out during parsing of
! 4039: * the next element
! 4040: */
! 4041: if ((ctxt->nameNr > 0) && (depth >= ctxt->nameNr) &&
! 4042: (!xmlStrEqual(currentNode, ctxt->name)))
! 4043: {
! 4044: if (currentNode != NULL) xmlFree(currentNode);
! 4045: return;
! 4046: }
! 4047:
! 4048: if ((CUR != 0) && ((xmlStrEqual(currentNode, BAD_CAST"script")) ||
! 4049: (xmlStrEqual(currentNode, BAD_CAST"style")))) {
! 4050: /*
! 4051: * Handle SCRIPT/STYLE separately
! 4052: */
! 4053: htmlParseScript(ctxt);
! 4054: } else {
! 4055: /*
! 4056: * Sometimes DOCTYPE arrives in the middle of the document
! 4057: */
! 4058: if ((CUR == '<') && (NXT(1) == '!') &&
! 4059: (UPP(2) == 'D') && (UPP(3) == 'O') &&
! 4060: (UPP(4) == 'C') && (UPP(5) == 'T') &&
! 4061: (UPP(6) == 'Y') && (UPP(7) == 'P') &&
! 4062: (UPP(8) == 'E')) {
! 4063: htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR,
! 4064: "Misplaced DOCTYPE declaration\n",
! 4065: BAD_CAST "DOCTYPE" , NULL);
! 4066: htmlParseDocTypeDecl(ctxt);
! 4067: }
! 4068:
! 4069: /*
! 4070: * First case : a comment
! 4071: */
! 4072: if ((CUR == '<') && (NXT(1) == '!') &&
! 4073: (NXT(2) == '-') && (NXT(3) == '-')) {
! 4074: htmlParseComment(ctxt);
! 4075: }
! 4076:
! 4077: /*
! 4078: * Second case : a Processing Instruction.
! 4079: */
! 4080: else if ((CUR == '<') && (NXT(1) == '?')) {
! 4081: htmlParsePI(ctxt);
! 4082: }
! 4083:
! 4084: /*
! 4085: * Third case : a sub-element.
! 4086: */
! 4087: else if (CUR == '<') {
! 4088: htmlParseElement(ctxt);
! 4089: }
! 4090:
! 4091: /*
! 4092: * Fourth case : a reference. If if has not been resolved,
! 4093: * parsing returns it's Name, create the node
! 4094: */
! 4095: else if (CUR == '&') {
! 4096: htmlParseReference(ctxt);
! 4097: }
! 4098:
! 4099: /*
! 4100: * Fifth case : end of the resource
! 4101: */
! 4102: else if (CUR == 0) {
! 4103: htmlAutoCloseOnEnd(ctxt);
! 4104: break;
! 4105: }
! 4106:
! 4107: /*
! 4108: * Last case, text. Note that References are handled directly.
! 4109: */
! 4110: else {
! 4111: htmlParseCharData(ctxt);
! 4112: }
! 4113:
! 4114: if (cons == ctxt->nbChars) {
! 4115: if (ctxt->node != NULL) {
! 4116: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 4117: "detected an error in element content\n",
! 4118: NULL, NULL);
! 4119: }
! 4120: break;
! 4121: }
! 4122: }
! 4123: GROW;
! 4124: }
! 4125: if (currentNode != NULL) xmlFree(currentNode);
! 4126: }
! 4127:
! 4128: /**
! 4129: * htmlParseElement:
! 4130: * @ctxt: an HTML parser context
! 4131: *
! 4132: * parse an HTML element, this is highly recursive
! 4133: * this is kept for compatibility with previous code versions
! 4134: *
! 4135: * [39] element ::= EmptyElemTag | STag content ETag
! 4136: *
! 4137: * [41] Attribute ::= Name Eq AttValue
! 4138: */
! 4139:
! 4140: void
! 4141: htmlParseElement(htmlParserCtxtPtr ctxt) {
! 4142: const xmlChar *name;
! 4143: xmlChar *currentNode = NULL;
! 4144: const htmlElemDesc * info;
! 4145: htmlParserNodeInfo node_info;
! 4146: int failed;
! 4147: int depth;
! 4148: const xmlChar *oldptr;
! 4149:
! 4150: if ((ctxt == NULL) || (ctxt->input == NULL)) {
! 4151: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 4152: "htmlParseElement: context error\n", NULL, NULL);
! 4153: return;
! 4154: }
! 4155:
! 4156: if (ctxt->instate == XML_PARSER_EOF)
! 4157: return;
! 4158:
! 4159: /* Capture start position */
! 4160: if (ctxt->record_info) {
! 4161: node_info.begin_pos = ctxt->input->consumed +
! 4162: (CUR_PTR - ctxt->input->base);
! 4163: node_info.begin_line = ctxt->input->line;
! 4164: }
! 4165:
! 4166: failed = htmlParseStartTag(ctxt);
! 4167: name = ctxt->name;
! 4168: if ((failed == -1) || (name == NULL)) {
! 4169: if (CUR == '>')
! 4170: NEXT;
! 4171: return;
! 4172: }
! 4173:
! 4174: /*
! 4175: * Lookup the info for that element.
! 4176: */
! 4177: info = htmlTagLookup(name);
! 4178: if (info == NULL) {
! 4179: htmlParseErr(ctxt, XML_HTML_UNKNOWN_TAG,
! 4180: "Tag %s invalid\n", name, NULL);
! 4181: }
! 4182:
! 4183: /*
! 4184: * Check for an Empty Element labeled the XML/SGML way
! 4185: */
! 4186: if ((CUR == '/') && (NXT(1) == '>')) {
! 4187: SKIP(2);
! 4188: if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
! 4189: ctxt->sax->endElement(ctxt->userData, name);
! 4190: htmlnamePop(ctxt);
! 4191: return;
! 4192: }
! 4193:
! 4194: if (CUR == '>') {
! 4195: NEXT;
! 4196: } else {
! 4197: htmlParseErr(ctxt, XML_ERR_GT_REQUIRED,
! 4198: "Couldn't find end of Start Tag %s\n", name, NULL);
! 4199:
! 4200: /*
! 4201: * end of parsing of this node.
! 4202: */
! 4203: if (xmlStrEqual(name, ctxt->name)) {
! 4204: nodePop(ctxt);
! 4205: htmlnamePop(ctxt);
! 4206: }
! 4207:
! 4208: /*
! 4209: * Capture end position and add node
! 4210: */
! 4211: if (ctxt->record_info) {
! 4212: node_info.end_pos = ctxt->input->consumed +
! 4213: (CUR_PTR - ctxt->input->base);
! 4214: node_info.end_line = ctxt->input->line;
! 4215: node_info.node = ctxt->node;
! 4216: xmlParserAddNodeInfo(ctxt, &node_info);
! 4217: }
! 4218: return;
! 4219: }
! 4220:
! 4221: /*
! 4222: * Check for an Empty Element from DTD definition
! 4223: */
! 4224: if ((info != NULL) && (info->empty)) {
! 4225: if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
! 4226: ctxt->sax->endElement(ctxt->userData, name);
! 4227: htmlnamePop(ctxt);
! 4228: return;
! 4229: }
! 4230:
! 4231: /*
! 4232: * Parse the content of the element:
! 4233: */
! 4234: currentNode = xmlStrdup(ctxt->name);
! 4235: depth = ctxt->nameNr;
! 4236: while (IS_CHAR_CH(CUR)) {
! 4237: oldptr = ctxt->input->cur;
! 4238: htmlParseContent(ctxt);
! 4239: if (oldptr==ctxt->input->cur) break;
! 4240: if (ctxt->nameNr < depth) break;
! 4241: }
! 4242:
! 4243: /*
! 4244: * Capture end position and add node
! 4245: */
! 4246: if ( currentNode != NULL && ctxt->record_info ) {
! 4247: node_info.end_pos = ctxt->input->consumed +
! 4248: (CUR_PTR - ctxt->input->base);
! 4249: node_info.end_line = ctxt->input->line;
! 4250: node_info.node = ctxt->node;
! 4251: xmlParserAddNodeInfo(ctxt, &node_info);
! 4252: }
! 4253: if (!IS_CHAR_CH(CUR)) {
! 4254: htmlAutoCloseOnEnd(ctxt);
! 4255: }
! 4256:
! 4257: if (currentNode != NULL)
! 4258: xmlFree(currentNode);
! 4259: }
! 4260:
! 4261: static void
! 4262: htmlParserFinishElementParsing(htmlParserCtxtPtr ctxt) {
! 4263: /*
! 4264: * Capture end position and add node
! 4265: */
! 4266: if ( ctxt->node != NULL && ctxt->record_info ) {
! 4267: ctxt->nodeInfo->end_pos = ctxt->input->consumed +
! 4268: (CUR_PTR - ctxt->input->base);
! 4269: ctxt->nodeInfo->end_line = ctxt->input->line;
! 4270: ctxt->nodeInfo->node = ctxt->node;
! 4271: xmlParserAddNodeInfo(ctxt, ctxt->nodeInfo);
! 4272: htmlNodeInfoPop(ctxt);
! 4273: }
! 4274: if (!IS_CHAR_CH(CUR)) {
! 4275: htmlAutoCloseOnEnd(ctxt);
! 4276: }
! 4277: }
! 4278:
! 4279: /**
! 4280: * htmlParseElementInternal:
! 4281: * @ctxt: an HTML parser context
! 4282: *
! 4283: * parse an HTML element, new version, non recursive
! 4284: *
! 4285: * [39] element ::= EmptyElemTag | STag content ETag
! 4286: *
! 4287: * [41] Attribute ::= Name Eq AttValue
! 4288: */
! 4289:
! 4290: static void
! 4291: htmlParseElementInternal(htmlParserCtxtPtr ctxt) {
! 4292: const xmlChar *name;
! 4293: const htmlElemDesc * info;
! 4294: htmlParserNodeInfo node_info;
! 4295: int failed;
! 4296:
! 4297: if ((ctxt == NULL) || (ctxt->input == NULL)) {
! 4298: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 4299: "htmlParseElementInternal: context error\n", NULL, NULL);
! 4300: return;
! 4301: }
! 4302:
! 4303: if (ctxt->instate == XML_PARSER_EOF)
! 4304: return;
! 4305:
! 4306: /* Capture start position */
! 4307: if (ctxt->record_info) {
! 4308: node_info.begin_pos = ctxt->input->consumed +
! 4309: (CUR_PTR - ctxt->input->base);
! 4310: node_info.begin_line = ctxt->input->line;
! 4311: }
! 4312:
! 4313: failed = htmlParseStartTag(ctxt);
! 4314: name = ctxt->name;
! 4315: if ((failed == -1) || (name == NULL)) {
! 4316: if (CUR == '>')
! 4317: NEXT;
! 4318: return;
! 4319: }
! 4320:
! 4321: /*
! 4322: * Lookup the info for that element.
! 4323: */
! 4324: info = htmlTagLookup(name);
! 4325: if (info == NULL) {
! 4326: htmlParseErr(ctxt, XML_HTML_UNKNOWN_TAG,
! 4327: "Tag %s invalid\n", name, NULL);
! 4328: }
! 4329:
! 4330: /*
! 4331: * Check for an Empty Element labeled the XML/SGML way
! 4332: */
! 4333: if ((CUR == '/') && (NXT(1) == '>')) {
! 4334: SKIP(2);
! 4335: if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
! 4336: ctxt->sax->endElement(ctxt->userData, name);
! 4337: htmlnamePop(ctxt);
! 4338: return;
! 4339: }
! 4340:
! 4341: if (CUR == '>') {
! 4342: NEXT;
! 4343: } else {
! 4344: htmlParseErr(ctxt, XML_ERR_GT_REQUIRED,
! 4345: "Couldn't find end of Start Tag %s\n", name, NULL);
! 4346:
! 4347: /*
! 4348: * end of parsing of this node.
! 4349: */
! 4350: if (xmlStrEqual(name, ctxt->name)) {
! 4351: nodePop(ctxt);
! 4352: htmlnamePop(ctxt);
! 4353: }
! 4354:
! 4355: if (ctxt->record_info)
! 4356: htmlNodeInfoPush(ctxt, &node_info);
! 4357: htmlParserFinishElementParsing(ctxt);
! 4358: return;
! 4359: }
! 4360:
! 4361: /*
! 4362: * Check for an Empty Element from DTD definition
! 4363: */
! 4364: if ((info != NULL) && (info->empty)) {
! 4365: if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
! 4366: ctxt->sax->endElement(ctxt->userData, name);
! 4367: htmlnamePop(ctxt);
! 4368: return;
! 4369: }
! 4370:
! 4371: if (ctxt->record_info)
! 4372: htmlNodeInfoPush(ctxt, &node_info);
! 4373: }
! 4374:
! 4375: /**
! 4376: * htmlParseContentInternal:
! 4377: * @ctxt: an HTML parser context
! 4378: *
! 4379: * Parse a content: comment, sub-element, reference or text.
! 4380: * New version for non recursive htmlParseElementInternal
! 4381: */
! 4382:
! 4383: static void
! 4384: htmlParseContentInternal(htmlParserCtxtPtr ctxt) {
! 4385: xmlChar *currentNode;
! 4386: int depth;
! 4387: const xmlChar *name;
! 4388:
! 4389: currentNode = xmlStrdup(ctxt->name);
! 4390: depth = ctxt->nameNr;
! 4391: while (1) {
! 4392: long cons = ctxt->nbChars;
! 4393:
! 4394: GROW;
! 4395:
! 4396: if (ctxt->instate == XML_PARSER_EOF)
! 4397: break;
! 4398:
! 4399: /*
! 4400: * Our tag or one of it's parent or children is ending.
! 4401: */
! 4402: if ((CUR == '<') && (NXT(1) == '/')) {
! 4403: if (htmlParseEndTag(ctxt) &&
! 4404: ((currentNode != NULL) || (ctxt->nameNr == 0))) {
! 4405: if (currentNode != NULL)
! 4406: xmlFree(currentNode);
! 4407:
! 4408: currentNode = xmlStrdup(ctxt->name);
! 4409: depth = ctxt->nameNr;
! 4410: }
! 4411: continue; /* while */
! 4412: }
! 4413:
! 4414: else if ((CUR == '<') &&
! 4415: ((IS_ASCII_LETTER(NXT(1))) ||
! 4416: (NXT(1) == '_') || (NXT(1) == ':'))) {
! 4417: name = htmlParseHTMLName_nonInvasive(ctxt);
! 4418: if (name == NULL) {
! 4419: htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED,
! 4420: "htmlParseStartTag: invalid element name\n",
! 4421: NULL, NULL);
! 4422: /* Dump the bogus tag like browsers do */
! 4423: while ((IS_CHAR_CH(CUR)) && (CUR != '>'))
! 4424: NEXT;
! 4425:
! 4426: htmlParserFinishElementParsing(ctxt);
! 4427: if (currentNode != NULL)
! 4428: xmlFree(currentNode);
! 4429:
! 4430: currentNode = xmlStrdup(ctxt->name);
! 4431: depth = ctxt->nameNr;
! 4432: continue;
! 4433: }
! 4434:
! 4435: if (ctxt->name != NULL) {
! 4436: if (htmlCheckAutoClose(name, ctxt->name) == 1) {
! 4437: htmlAutoClose(ctxt, name);
! 4438: continue;
! 4439: }
! 4440: }
! 4441: }
! 4442:
! 4443: /*
! 4444: * Has this node been popped out during parsing of
! 4445: * the next element
! 4446: */
! 4447: if ((ctxt->nameNr > 0) && (depth >= ctxt->nameNr) &&
! 4448: (!xmlStrEqual(currentNode, ctxt->name)))
! 4449: {
! 4450: htmlParserFinishElementParsing(ctxt);
! 4451: if (currentNode != NULL) xmlFree(currentNode);
! 4452:
! 4453: currentNode = xmlStrdup(ctxt->name);
! 4454: depth = ctxt->nameNr;
! 4455: continue;
! 4456: }
! 4457:
! 4458: if ((CUR != 0) && ((xmlStrEqual(currentNode, BAD_CAST"script")) ||
! 4459: (xmlStrEqual(currentNode, BAD_CAST"style")))) {
! 4460: /*
! 4461: * Handle SCRIPT/STYLE separately
! 4462: */
! 4463: htmlParseScript(ctxt);
! 4464: } else {
! 4465: /*
! 4466: * Sometimes DOCTYPE arrives in the middle of the document
! 4467: */
! 4468: if ((CUR == '<') && (NXT(1) == '!') &&
! 4469: (UPP(2) == 'D') && (UPP(3) == 'O') &&
! 4470: (UPP(4) == 'C') && (UPP(5) == 'T') &&
! 4471: (UPP(6) == 'Y') && (UPP(7) == 'P') &&
! 4472: (UPP(8) == 'E')) {
! 4473: htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR,
! 4474: "Misplaced DOCTYPE declaration\n",
! 4475: BAD_CAST "DOCTYPE" , NULL);
! 4476: htmlParseDocTypeDecl(ctxt);
! 4477: }
! 4478:
! 4479: /*
! 4480: * First case : a comment
! 4481: */
! 4482: if ((CUR == '<') && (NXT(1) == '!') &&
! 4483: (NXT(2) == '-') && (NXT(3) == '-')) {
! 4484: htmlParseComment(ctxt);
! 4485: }
! 4486:
! 4487: /*
! 4488: * Second case : a Processing Instruction.
! 4489: */
! 4490: else if ((CUR == '<') && (NXT(1) == '?')) {
! 4491: htmlParsePI(ctxt);
! 4492: }
! 4493:
! 4494: /*
! 4495: * Third case : a sub-element.
! 4496: */
! 4497: else if (CUR == '<') {
! 4498: htmlParseElementInternal(ctxt);
! 4499: if (currentNode != NULL) xmlFree(currentNode);
! 4500:
! 4501: currentNode = xmlStrdup(ctxt->name);
! 4502: depth = ctxt->nameNr;
! 4503: }
! 4504:
! 4505: /*
! 4506: * Fourth case : a reference. If if has not been resolved,
! 4507: * parsing returns it's Name, create the node
! 4508: */
! 4509: else if (CUR == '&') {
! 4510: htmlParseReference(ctxt);
! 4511: }
! 4512:
! 4513: /*
! 4514: * Fifth case : end of the resource
! 4515: */
! 4516: else if (CUR == 0) {
! 4517: htmlAutoCloseOnEnd(ctxt);
! 4518: break;
! 4519: }
! 4520:
! 4521: /*
! 4522: * Last case, text. Note that References are handled directly.
! 4523: */
! 4524: else {
! 4525: htmlParseCharData(ctxt);
! 4526: }
! 4527:
! 4528: if (cons == ctxt->nbChars) {
! 4529: if (ctxt->node != NULL) {
! 4530: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 4531: "detected an error in element content\n",
! 4532: NULL, NULL);
! 4533: }
! 4534: break;
! 4535: }
! 4536: }
! 4537: GROW;
! 4538: }
! 4539: if (currentNode != NULL) xmlFree(currentNode);
! 4540: }
! 4541:
! 4542: /**
! 4543: * htmlParseContent:
! 4544: * @ctxt: an HTML parser context
! 4545: *
! 4546: * Parse a content: comment, sub-element, reference or text.
! 4547: * This is the entry point when called from parser.c
! 4548: */
! 4549:
! 4550: void
! 4551: __htmlParseContent(void *ctxt) {
! 4552: if (ctxt != NULL)
! 4553: htmlParseContentInternal((htmlParserCtxtPtr) ctxt);
! 4554: }
! 4555:
! 4556: /**
! 4557: * htmlParseDocument:
! 4558: * @ctxt: an HTML parser context
! 4559: *
! 4560: * parse an HTML document (and build a tree if using the standard SAX
! 4561: * interface).
! 4562: *
! 4563: * Returns 0, -1 in case of error. the parser context is augmented
! 4564: * as a result of the parsing.
! 4565: */
! 4566:
! 4567: int
! 4568: htmlParseDocument(htmlParserCtxtPtr ctxt) {
! 4569: xmlChar start[4];
! 4570: xmlCharEncoding enc;
! 4571: xmlDtdPtr dtd;
! 4572:
! 4573: xmlInitParser();
! 4574:
! 4575: htmlDefaultSAXHandlerInit();
! 4576:
! 4577: if ((ctxt == NULL) || (ctxt->input == NULL)) {
! 4578: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 4579: "htmlParseDocument: context error\n", NULL, NULL);
! 4580: return(XML_ERR_INTERNAL_ERROR);
! 4581: }
! 4582: ctxt->html = 1;
! 4583: ctxt->linenumbers = 1;
! 4584: GROW;
! 4585: /*
! 4586: * SAX: beginning of the document processing.
! 4587: */
! 4588: if ((ctxt->sax) && (ctxt->sax->setDocumentLocator))
! 4589: ctxt->sax->setDocumentLocator(ctxt->userData, &xmlDefaultSAXLocator);
! 4590:
! 4591: if ((ctxt->encoding == (const xmlChar *)XML_CHAR_ENCODING_NONE) &&
! 4592: ((ctxt->input->end - ctxt->input->cur) >= 4)) {
! 4593: /*
! 4594: * Get the 4 first bytes and decode the charset
! 4595: * if enc != XML_CHAR_ENCODING_NONE
! 4596: * plug some encoding conversion routines.
! 4597: */
! 4598: start[0] = RAW;
! 4599: start[1] = NXT(1);
! 4600: start[2] = NXT(2);
! 4601: start[3] = NXT(3);
! 4602: enc = xmlDetectCharEncoding(&start[0], 4);
! 4603: if (enc != XML_CHAR_ENCODING_NONE) {
! 4604: xmlSwitchEncoding(ctxt, enc);
! 4605: }
! 4606: }
! 4607:
! 4608: /*
! 4609: * Wipe out everything which is before the first '<'
! 4610: */
! 4611: SKIP_BLANKS;
! 4612: if (CUR == 0) {
! 4613: htmlParseErr(ctxt, XML_ERR_DOCUMENT_EMPTY,
! 4614: "Document is empty\n", NULL, NULL);
! 4615: }
! 4616:
! 4617: if ((ctxt->sax) && (ctxt->sax->startDocument) && (!ctxt->disableSAX))
! 4618: ctxt->sax->startDocument(ctxt->userData);
! 4619:
! 4620:
! 4621: /*
! 4622: * Parse possible comments and PIs before any content
! 4623: */
! 4624: while (((CUR == '<') && (NXT(1) == '!') &&
! 4625: (NXT(2) == '-') && (NXT(3) == '-')) ||
! 4626: ((CUR == '<') && (NXT(1) == '?'))) {
! 4627: htmlParseComment(ctxt);
! 4628: htmlParsePI(ctxt);
! 4629: SKIP_BLANKS;
! 4630: }
! 4631:
! 4632:
! 4633: /*
! 4634: * Then possibly doc type declaration(s) and more Misc
! 4635: * (doctypedecl Misc*)?
! 4636: */
! 4637: if ((CUR == '<') && (NXT(1) == '!') &&
! 4638: (UPP(2) == 'D') && (UPP(3) == 'O') &&
! 4639: (UPP(4) == 'C') && (UPP(5) == 'T') &&
! 4640: (UPP(6) == 'Y') && (UPP(7) == 'P') &&
! 4641: (UPP(8) == 'E')) {
! 4642: htmlParseDocTypeDecl(ctxt);
! 4643: }
! 4644: SKIP_BLANKS;
! 4645:
! 4646: /*
! 4647: * Parse possible comments and PIs before any content
! 4648: */
! 4649: while (((CUR == '<') && (NXT(1) == '!') &&
! 4650: (NXT(2) == '-') && (NXT(3) == '-')) ||
! 4651: ((CUR == '<') && (NXT(1) == '?'))) {
! 4652: htmlParseComment(ctxt);
! 4653: htmlParsePI(ctxt);
! 4654: SKIP_BLANKS;
! 4655: }
! 4656:
! 4657: /*
! 4658: * Time to start parsing the tree itself
! 4659: */
! 4660: htmlParseContentInternal(ctxt);
! 4661:
! 4662: /*
! 4663: * autoclose
! 4664: */
! 4665: if (CUR == 0)
! 4666: htmlAutoCloseOnEnd(ctxt);
! 4667:
! 4668:
! 4669: /*
! 4670: * SAX: end of the document processing.
! 4671: */
! 4672: if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
! 4673: ctxt->sax->endDocument(ctxt->userData);
! 4674:
! 4675: if ((!(ctxt->options & HTML_PARSE_NODEFDTD)) && (ctxt->myDoc != NULL)) {
! 4676: dtd = xmlGetIntSubset(ctxt->myDoc);
! 4677: if (dtd == NULL)
! 4678: ctxt->myDoc->intSubset =
! 4679: xmlCreateIntSubset(ctxt->myDoc, BAD_CAST "html",
! 4680: BAD_CAST "-//W3C//DTD HTML 4.0 Transitional//EN",
! 4681: BAD_CAST "http://www.w3.org/TR/REC-html40/loose.dtd");
! 4682: }
! 4683: if (! ctxt->wellFormed) return(-1);
! 4684: return(0);
! 4685: }
! 4686:
! 4687:
! 4688: /************************************************************************
! 4689: * *
! 4690: * Parser contexts handling *
! 4691: * *
! 4692: ************************************************************************/
! 4693:
! 4694: /**
! 4695: * htmlInitParserCtxt:
! 4696: * @ctxt: an HTML parser context
! 4697: *
! 4698: * Initialize a parser context
! 4699: *
! 4700: * Returns 0 in case of success and -1 in case of error
! 4701: */
! 4702:
! 4703: static int
! 4704: htmlInitParserCtxt(htmlParserCtxtPtr ctxt)
! 4705: {
! 4706: htmlSAXHandler *sax;
! 4707:
! 4708: if (ctxt == NULL) return(-1);
! 4709: memset(ctxt, 0, sizeof(htmlParserCtxt));
! 4710:
! 4711: ctxt->dict = xmlDictCreate();
! 4712: if (ctxt->dict == NULL) {
! 4713: htmlErrMemory(NULL, "htmlInitParserCtxt: out of memory\n");
! 4714: return(-1);
! 4715: }
! 4716: sax = (htmlSAXHandler *) xmlMalloc(sizeof(htmlSAXHandler));
! 4717: if (sax == NULL) {
! 4718: htmlErrMemory(NULL, "htmlInitParserCtxt: out of memory\n");
! 4719: return(-1);
! 4720: }
! 4721: else
! 4722: memset(sax, 0, sizeof(htmlSAXHandler));
! 4723:
! 4724: /* Allocate the Input stack */
! 4725: ctxt->inputTab = (htmlParserInputPtr *)
! 4726: xmlMalloc(5 * sizeof(htmlParserInputPtr));
! 4727: if (ctxt->inputTab == NULL) {
! 4728: htmlErrMemory(NULL, "htmlInitParserCtxt: out of memory\n");
! 4729: ctxt->inputNr = 0;
! 4730: ctxt->inputMax = 0;
! 4731: ctxt->input = NULL;
! 4732: return(-1);
! 4733: }
! 4734: ctxt->inputNr = 0;
! 4735: ctxt->inputMax = 5;
! 4736: ctxt->input = NULL;
! 4737: ctxt->version = NULL;
! 4738: ctxt->encoding = NULL;
! 4739: ctxt->standalone = -1;
! 4740: ctxt->instate = XML_PARSER_START;
! 4741:
! 4742: /* Allocate the Node stack */
! 4743: ctxt->nodeTab = (htmlNodePtr *) xmlMalloc(10 * sizeof(htmlNodePtr));
! 4744: if (ctxt->nodeTab == NULL) {
! 4745: htmlErrMemory(NULL, "htmlInitParserCtxt: out of memory\n");
! 4746: ctxt->nodeNr = 0;
! 4747: ctxt->nodeMax = 0;
! 4748: ctxt->node = NULL;
! 4749: ctxt->inputNr = 0;
! 4750: ctxt->inputMax = 0;
! 4751: ctxt->input = NULL;
! 4752: return(-1);
! 4753: }
! 4754: ctxt->nodeNr = 0;
! 4755: ctxt->nodeMax = 10;
! 4756: ctxt->node = NULL;
! 4757:
! 4758: /* Allocate the Name stack */
! 4759: ctxt->nameTab = (const xmlChar **) xmlMalloc(10 * sizeof(xmlChar *));
! 4760: if (ctxt->nameTab == NULL) {
! 4761: htmlErrMemory(NULL, "htmlInitParserCtxt: out of memory\n");
! 4762: ctxt->nameNr = 0;
! 4763: ctxt->nameMax = 0;
! 4764: ctxt->name = NULL;
! 4765: ctxt->nodeNr = 0;
! 4766: ctxt->nodeMax = 0;
! 4767: ctxt->node = NULL;
! 4768: ctxt->inputNr = 0;
! 4769: ctxt->inputMax = 0;
! 4770: ctxt->input = NULL;
! 4771: return(-1);
! 4772: }
! 4773: ctxt->nameNr = 0;
! 4774: ctxt->nameMax = 10;
! 4775: ctxt->name = NULL;
! 4776:
! 4777: ctxt->nodeInfoTab = NULL;
! 4778: ctxt->nodeInfoNr = 0;
! 4779: ctxt->nodeInfoMax = 0;
! 4780:
! 4781: if (sax == NULL) ctxt->sax = (xmlSAXHandlerPtr) &htmlDefaultSAXHandler;
! 4782: else {
! 4783: ctxt->sax = sax;
! 4784: memcpy(sax, &htmlDefaultSAXHandler, sizeof(xmlSAXHandlerV1));
! 4785: }
! 4786: ctxt->userData = ctxt;
! 4787: ctxt->myDoc = NULL;
! 4788: ctxt->wellFormed = 1;
! 4789: ctxt->replaceEntities = 0;
! 4790: ctxt->linenumbers = xmlLineNumbersDefaultValue;
! 4791: ctxt->html = 1;
! 4792: ctxt->vctxt.finishDtd = XML_CTXT_FINISH_DTD_0;
! 4793: ctxt->vctxt.userData = ctxt;
! 4794: ctxt->vctxt.error = xmlParserValidityError;
! 4795: ctxt->vctxt.warning = xmlParserValidityWarning;
! 4796: ctxt->record_info = 0;
! 4797: ctxt->validate = 0;
! 4798: ctxt->nbChars = 0;
! 4799: ctxt->checkIndex = 0;
! 4800: ctxt->catalogs = NULL;
! 4801: xmlInitNodeInfoSeq(&ctxt->node_seq);
! 4802: return(0);
! 4803: }
! 4804:
! 4805: /**
! 4806: * htmlFreeParserCtxt:
! 4807: * @ctxt: an HTML parser context
! 4808: *
! 4809: * Free all the memory used by a parser context. However the parsed
! 4810: * document in ctxt->myDoc is not freed.
! 4811: */
! 4812:
! 4813: void
! 4814: htmlFreeParserCtxt(htmlParserCtxtPtr ctxt)
! 4815: {
! 4816: xmlFreeParserCtxt(ctxt);
! 4817: }
! 4818:
! 4819: /**
! 4820: * htmlNewParserCtxt:
! 4821: *
! 4822: * Allocate and initialize a new parser context.
! 4823: *
! 4824: * Returns the htmlParserCtxtPtr or NULL in case of allocation error
! 4825: */
! 4826:
! 4827: htmlParserCtxtPtr
! 4828: htmlNewParserCtxt(void)
! 4829: {
! 4830: xmlParserCtxtPtr ctxt;
! 4831:
! 4832: ctxt = (xmlParserCtxtPtr) xmlMalloc(sizeof(xmlParserCtxt));
! 4833: if (ctxt == NULL) {
! 4834: htmlErrMemory(NULL, "NewParserCtxt: out of memory\n");
! 4835: return(NULL);
! 4836: }
! 4837: memset(ctxt, 0, sizeof(xmlParserCtxt));
! 4838: if (htmlInitParserCtxt(ctxt) < 0) {
! 4839: htmlFreeParserCtxt(ctxt);
! 4840: return(NULL);
! 4841: }
! 4842: return(ctxt);
! 4843: }
! 4844:
! 4845: /**
! 4846: * htmlCreateMemoryParserCtxt:
! 4847: * @buffer: a pointer to a char array
! 4848: * @size: the size of the array
! 4849: *
! 4850: * Create a parser context for an HTML in-memory document.
! 4851: *
! 4852: * Returns the new parser context or NULL
! 4853: */
! 4854: htmlParserCtxtPtr
! 4855: htmlCreateMemoryParserCtxt(const char *buffer, int size) {
! 4856: xmlParserCtxtPtr ctxt;
! 4857: xmlParserInputPtr input;
! 4858: xmlParserInputBufferPtr buf;
! 4859:
! 4860: if (buffer == NULL)
! 4861: return(NULL);
! 4862: if (size <= 0)
! 4863: return(NULL);
! 4864:
! 4865: ctxt = htmlNewParserCtxt();
! 4866: if (ctxt == NULL)
! 4867: return(NULL);
! 4868:
! 4869: buf = xmlParserInputBufferCreateMem(buffer, size, XML_CHAR_ENCODING_NONE);
! 4870: if (buf == NULL) return(NULL);
! 4871:
! 4872: input = xmlNewInputStream(ctxt);
! 4873: if (input == NULL) {
! 4874: xmlFreeParserCtxt(ctxt);
! 4875: return(NULL);
! 4876: }
! 4877:
! 4878: input->filename = NULL;
! 4879: input->buf = buf;
! 4880: input->base = input->buf->buffer->content;
! 4881: input->cur = input->buf->buffer->content;
! 4882: input->end = &input->buf->buffer->content[input->buf->buffer->use];
! 4883:
! 4884: inputPush(ctxt, input);
! 4885: return(ctxt);
! 4886: }
! 4887:
! 4888: /**
! 4889: * htmlCreateDocParserCtxt:
! 4890: * @cur: a pointer to an array of xmlChar
! 4891: * @encoding: a free form C string describing the HTML document encoding, or NULL
! 4892: *
! 4893: * Create a parser context for an HTML document.
! 4894: *
! 4895: * TODO: check the need to add encoding handling there
! 4896: *
! 4897: * Returns the new parser context or NULL
! 4898: */
! 4899: static htmlParserCtxtPtr
! 4900: htmlCreateDocParserCtxt(const xmlChar *cur, const char *encoding) {
! 4901: int len;
! 4902: htmlParserCtxtPtr ctxt;
! 4903:
! 4904: if (cur == NULL)
! 4905: return(NULL);
! 4906: len = xmlStrlen(cur);
! 4907: ctxt = htmlCreateMemoryParserCtxt((char *)cur, len);
! 4908: if (ctxt == NULL)
! 4909: return(NULL);
! 4910:
! 4911: if (encoding != NULL) {
! 4912: xmlCharEncoding enc;
! 4913: xmlCharEncodingHandlerPtr handler;
! 4914:
! 4915: if (ctxt->input->encoding != NULL)
! 4916: xmlFree((xmlChar *) ctxt->input->encoding);
! 4917: ctxt->input->encoding = xmlStrdup((const xmlChar *) encoding);
! 4918:
! 4919: enc = xmlParseCharEncoding(encoding);
! 4920: /*
! 4921: * registered set of known encodings
! 4922: */
! 4923: if (enc != XML_CHAR_ENCODING_ERROR) {
! 4924: xmlSwitchEncoding(ctxt, enc);
! 4925: if (ctxt->errNo == XML_ERR_UNSUPPORTED_ENCODING) {
! 4926: htmlParseErr(ctxt, XML_ERR_UNSUPPORTED_ENCODING,
! 4927: "Unsupported encoding %s\n",
! 4928: (const xmlChar *) encoding, NULL);
! 4929: }
! 4930: } else {
! 4931: /*
! 4932: * fallback for unknown encodings
! 4933: */
! 4934: handler = xmlFindCharEncodingHandler((const char *) encoding);
! 4935: if (handler != NULL) {
! 4936: xmlSwitchToEncoding(ctxt, handler);
! 4937: } else {
! 4938: htmlParseErr(ctxt, XML_ERR_UNSUPPORTED_ENCODING,
! 4939: "Unsupported encoding %s\n",
! 4940: (const xmlChar *) encoding, NULL);
! 4941: }
! 4942: }
! 4943: }
! 4944: return(ctxt);
! 4945: }
! 4946:
! 4947: #ifdef LIBXML_PUSH_ENABLED
! 4948: /************************************************************************
! 4949: * *
! 4950: * Progressive parsing interfaces *
! 4951: * *
! 4952: ************************************************************************/
! 4953:
! 4954: /**
! 4955: * htmlParseLookupSequence:
! 4956: * @ctxt: an HTML parser context
! 4957: * @first: the first char to lookup
! 4958: * @next: the next char to lookup or zero
! 4959: * @third: the next char to lookup or zero
! 4960: * @comment: flag to force checking inside comments
! 4961: *
! 4962: * Try to find if a sequence (first, next, third) or just (first next) or
! 4963: * (first) is available in the input stream.
! 4964: * This function has a side effect of (possibly) incrementing ctxt->checkIndex
! 4965: * to avoid rescanning sequences of bytes, it DOES change the state of the
! 4966: * parser, do not use liberally.
! 4967: * This is basically similar to xmlParseLookupSequence()
! 4968: *
! 4969: * Returns the index to the current parsing point if the full sequence
! 4970: * is available, -1 otherwise.
! 4971: */
! 4972: static int
! 4973: htmlParseLookupSequence(htmlParserCtxtPtr ctxt, xmlChar first,
! 4974: xmlChar next, xmlChar third, int iscomment,
! 4975: int ignoreattrval)
! 4976: {
! 4977: int base, len;
! 4978: htmlParserInputPtr in;
! 4979: const xmlChar *buf;
! 4980: int incomment = 0;
! 4981: int invalue = 0;
! 4982: char valdellim = 0x0;
! 4983:
! 4984: in = ctxt->input;
! 4985: if (in == NULL)
! 4986: return (-1);
! 4987:
! 4988: base = in->cur - in->base;
! 4989: if (base < 0)
! 4990: return (-1);
! 4991:
! 4992: if (ctxt->checkIndex > base)
! 4993: base = ctxt->checkIndex;
! 4994:
! 4995: if (in->buf == NULL) {
! 4996: buf = in->base;
! 4997: len = in->length;
! 4998: } else {
! 4999: buf = in->buf->buffer->content;
! 5000: len = in->buf->buffer->use;
! 5001: }
! 5002:
! 5003: /* take into account the sequence length */
! 5004: if (third)
! 5005: len -= 2;
! 5006: else if (next)
! 5007: len--;
! 5008: for (; base < len; base++) {
! 5009: if ((!incomment) && (base + 4 < len) && (!iscomment)) {
! 5010: if ((buf[base] == '<') && (buf[base + 1] == '!') &&
! 5011: (buf[base + 2] == '-') && (buf[base + 3] == '-')) {
! 5012: incomment = 1;
! 5013: /* do not increment past <! - some people use <!--> */
! 5014: base += 2;
! 5015: }
! 5016: }
! 5017: if (ignoreattrval) {
! 5018: if (buf[base] == '"' || buf[base] == '\'') {
! 5019: if (invalue) {
! 5020: if (buf[base] == valdellim) {
! 5021: invalue = 0;
! 5022: continue;
! 5023: }
! 5024: } else {
! 5025: valdellim = buf[base];
! 5026: invalue = 1;
! 5027: continue;
! 5028: }
! 5029: } else if (invalue) {
! 5030: continue;
! 5031: }
! 5032: }
! 5033: if (incomment) {
! 5034: if (base + 3 > len)
! 5035: return (-1);
! 5036: if ((buf[base] == '-') && (buf[base + 1] == '-') &&
! 5037: (buf[base + 2] == '>')) {
! 5038: incomment = 0;
! 5039: base += 2;
! 5040: }
! 5041: continue;
! 5042: }
! 5043: if (buf[base] == first) {
! 5044: if (third != 0) {
! 5045: if ((buf[base + 1] != next) || (buf[base + 2] != third))
! 5046: continue;
! 5047: } else if (next != 0) {
! 5048: if (buf[base + 1] != next)
! 5049: continue;
! 5050: }
! 5051: ctxt->checkIndex = 0;
! 5052: #ifdef DEBUG_PUSH
! 5053: if (next == 0)
! 5054: xmlGenericError(xmlGenericErrorContext,
! 5055: "HPP: lookup '%c' found at %d\n",
! 5056: first, base);
! 5057: else if (third == 0)
! 5058: xmlGenericError(xmlGenericErrorContext,
! 5059: "HPP: lookup '%c%c' found at %d\n",
! 5060: first, next, base);
! 5061: else
! 5062: xmlGenericError(xmlGenericErrorContext,
! 5063: "HPP: lookup '%c%c%c' found at %d\n",
! 5064: first, next, third, base);
! 5065: #endif
! 5066: return (base - (in->cur - in->base));
! 5067: }
! 5068: }
! 5069: if ((!incomment) && (!invalue))
! 5070: ctxt->checkIndex = base;
! 5071: #ifdef DEBUG_PUSH
! 5072: if (next == 0)
! 5073: xmlGenericError(xmlGenericErrorContext,
! 5074: "HPP: lookup '%c' failed\n", first);
! 5075: else if (third == 0)
! 5076: xmlGenericError(xmlGenericErrorContext,
! 5077: "HPP: lookup '%c%c' failed\n", first, next);
! 5078: else
! 5079: xmlGenericError(xmlGenericErrorContext,
! 5080: "HPP: lookup '%c%c%c' failed\n", first, next,
! 5081: third);
! 5082: #endif
! 5083: return (-1);
! 5084: }
! 5085:
! 5086: /**
! 5087: * htmlParseLookupChars:
! 5088: * @ctxt: an HTML parser context
! 5089: * @stop: Array of chars, which stop the lookup.
! 5090: * @stopLen: Length of stop-Array
! 5091: *
! 5092: * Try to find if any char of the stop-Array is available in the input
! 5093: * stream.
! 5094: * This function has a side effect of (possibly) incrementing ctxt->checkIndex
! 5095: * to avoid rescanning sequences of bytes, it DOES change the state of the
! 5096: * parser, do not use liberally.
! 5097: *
! 5098: * Returns the index to the current parsing point if a stopChar
! 5099: * is available, -1 otherwise.
! 5100: */
! 5101: static int
! 5102: htmlParseLookupChars(htmlParserCtxtPtr ctxt, const xmlChar * stop,
! 5103: int stopLen)
! 5104: {
! 5105: int base, len;
! 5106: htmlParserInputPtr in;
! 5107: const xmlChar *buf;
! 5108: int incomment = 0;
! 5109: int i;
! 5110:
! 5111: in = ctxt->input;
! 5112: if (in == NULL)
! 5113: return (-1);
! 5114:
! 5115: base = in->cur - in->base;
! 5116: if (base < 0)
! 5117: return (-1);
! 5118:
! 5119: if (ctxt->checkIndex > base)
! 5120: base = ctxt->checkIndex;
! 5121:
! 5122: if (in->buf == NULL) {
! 5123: buf = in->base;
! 5124: len = in->length;
! 5125: } else {
! 5126: buf = in->buf->buffer->content;
! 5127: len = in->buf->buffer->use;
! 5128: }
! 5129:
! 5130: for (; base < len; base++) {
! 5131: if (!incomment && (base + 4 < len)) {
! 5132: if ((buf[base] == '<') && (buf[base + 1] == '!') &&
! 5133: (buf[base + 2] == '-') && (buf[base + 3] == '-')) {
! 5134: incomment = 1;
! 5135: /* do not increment past <! - some people use <!--> */
! 5136: base += 2;
! 5137: }
! 5138: }
! 5139: if (incomment) {
! 5140: if (base + 3 > len)
! 5141: return (-1);
! 5142: if ((buf[base] == '-') && (buf[base + 1] == '-') &&
! 5143: (buf[base + 2] == '>')) {
! 5144: incomment = 0;
! 5145: base += 2;
! 5146: }
! 5147: continue;
! 5148: }
! 5149: for (i = 0; i < stopLen; ++i) {
! 5150: if (buf[base] == stop[i]) {
! 5151: ctxt->checkIndex = 0;
! 5152: return (base - (in->cur - in->base));
! 5153: }
! 5154: }
! 5155: }
! 5156: ctxt->checkIndex = base;
! 5157: return (-1);
! 5158: }
! 5159:
! 5160: /**
! 5161: * htmlParseTryOrFinish:
! 5162: * @ctxt: an HTML parser context
! 5163: * @terminate: last chunk indicator
! 5164: *
! 5165: * Try to progress on parsing
! 5166: *
! 5167: * Returns zero if no parsing was possible
! 5168: */
! 5169: static int
! 5170: htmlParseTryOrFinish(htmlParserCtxtPtr ctxt, int terminate) {
! 5171: int ret = 0;
! 5172: htmlParserInputPtr in;
! 5173: int avail = 0;
! 5174: xmlChar cur, next;
! 5175:
! 5176: #ifdef DEBUG_PUSH
! 5177: switch (ctxt->instate) {
! 5178: case XML_PARSER_EOF:
! 5179: xmlGenericError(xmlGenericErrorContext,
! 5180: "HPP: try EOF\n"); break;
! 5181: case XML_PARSER_START:
! 5182: xmlGenericError(xmlGenericErrorContext,
! 5183: "HPP: try START\n"); break;
! 5184: case XML_PARSER_MISC:
! 5185: xmlGenericError(xmlGenericErrorContext,
! 5186: "HPP: try MISC\n");break;
! 5187: case XML_PARSER_COMMENT:
! 5188: xmlGenericError(xmlGenericErrorContext,
! 5189: "HPP: try COMMENT\n");break;
! 5190: case XML_PARSER_PROLOG:
! 5191: xmlGenericError(xmlGenericErrorContext,
! 5192: "HPP: try PROLOG\n");break;
! 5193: case XML_PARSER_START_TAG:
! 5194: xmlGenericError(xmlGenericErrorContext,
! 5195: "HPP: try START_TAG\n");break;
! 5196: case XML_PARSER_CONTENT:
! 5197: xmlGenericError(xmlGenericErrorContext,
! 5198: "HPP: try CONTENT\n");break;
! 5199: case XML_PARSER_CDATA_SECTION:
! 5200: xmlGenericError(xmlGenericErrorContext,
! 5201: "HPP: try CDATA_SECTION\n");break;
! 5202: case XML_PARSER_END_TAG:
! 5203: xmlGenericError(xmlGenericErrorContext,
! 5204: "HPP: try END_TAG\n");break;
! 5205: case XML_PARSER_ENTITY_DECL:
! 5206: xmlGenericError(xmlGenericErrorContext,
! 5207: "HPP: try ENTITY_DECL\n");break;
! 5208: case XML_PARSER_ENTITY_VALUE:
! 5209: xmlGenericError(xmlGenericErrorContext,
! 5210: "HPP: try ENTITY_VALUE\n");break;
! 5211: case XML_PARSER_ATTRIBUTE_VALUE:
! 5212: xmlGenericError(xmlGenericErrorContext,
! 5213: "HPP: try ATTRIBUTE_VALUE\n");break;
! 5214: case XML_PARSER_DTD:
! 5215: xmlGenericError(xmlGenericErrorContext,
! 5216: "HPP: try DTD\n");break;
! 5217: case XML_PARSER_EPILOG:
! 5218: xmlGenericError(xmlGenericErrorContext,
! 5219: "HPP: try EPILOG\n");break;
! 5220: case XML_PARSER_PI:
! 5221: xmlGenericError(xmlGenericErrorContext,
! 5222: "HPP: try PI\n");break;
! 5223: case XML_PARSER_SYSTEM_LITERAL:
! 5224: xmlGenericError(xmlGenericErrorContext,
! 5225: "HPP: try SYSTEM_LITERAL\n");break;
! 5226: }
! 5227: #endif
! 5228:
! 5229: while (1) {
! 5230:
! 5231: in = ctxt->input;
! 5232: if (in == NULL) break;
! 5233: if (in->buf == NULL)
! 5234: avail = in->length - (in->cur - in->base);
! 5235: else
! 5236: avail = in->buf->buffer->use - (in->cur - in->base);
! 5237: if ((avail == 0) && (terminate)) {
! 5238: htmlAutoCloseOnEnd(ctxt);
! 5239: if ((ctxt->nameNr == 0) && (ctxt->instate != XML_PARSER_EOF)) {
! 5240: /*
! 5241: * SAX: end of the document processing.
! 5242: */
! 5243: ctxt->instate = XML_PARSER_EOF;
! 5244: if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
! 5245: ctxt->sax->endDocument(ctxt->userData);
! 5246: }
! 5247: }
! 5248: if (avail < 1)
! 5249: goto done;
! 5250: cur = in->cur[0];
! 5251: if (cur == 0) {
! 5252: SKIP(1);
! 5253: continue;
! 5254: }
! 5255:
! 5256: switch (ctxt->instate) {
! 5257: case XML_PARSER_EOF:
! 5258: /*
! 5259: * Document parsing is done !
! 5260: */
! 5261: goto done;
! 5262: case XML_PARSER_START:
! 5263: /*
! 5264: * Very first chars read from the document flow.
! 5265: */
! 5266: cur = in->cur[0];
! 5267: if (IS_BLANK_CH(cur)) {
! 5268: SKIP_BLANKS;
! 5269: if (in->buf == NULL)
! 5270: avail = in->length - (in->cur - in->base);
! 5271: else
! 5272: avail = in->buf->buffer->use - (in->cur - in->base);
! 5273: }
! 5274: if ((ctxt->sax) && (ctxt->sax->setDocumentLocator))
! 5275: ctxt->sax->setDocumentLocator(ctxt->userData,
! 5276: &xmlDefaultSAXLocator);
! 5277: if ((ctxt->sax) && (ctxt->sax->startDocument) &&
! 5278: (!ctxt->disableSAX))
! 5279: ctxt->sax->startDocument(ctxt->userData);
! 5280:
! 5281: cur = in->cur[0];
! 5282: next = in->cur[1];
! 5283: if ((cur == '<') && (next == '!') &&
! 5284: (UPP(2) == 'D') && (UPP(3) == 'O') &&
! 5285: (UPP(4) == 'C') && (UPP(5) == 'T') &&
! 5286: (UPP(6) == 'Y') && (UPP(7) == 'P') &&
! 5287: (UPP(8) == 'E')) {
! 5288: if ((!terminate) &&
! 5289: (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0))
! 5290: goto done;
! 5291: #ifdef DEBUG_PUSH
! 5292: xmlGenericError(xmlGenericErrorContext,
! 5293: "HPP: Parsing internal subset\n");
! 5294: #endif
! 5295: htmlParseDocTypeDecl(ctxt);
! 5296: ctxt->instate = XML_PARSER_PROLOG;
! 5297: #ifdef DEBUG_PUSH
! 5298: xmlGenericError(xmlGenericErrorContext,
! 5299: "HPP: entering PROLOG\n");
! 5300: #endif
! 5301: } else {
! 5302: ctxt->instate = XML_PARSER_MISC;
! 5303: #ifdef DEBUG_PUSH
! 5304: xmlGenericError(xmlGenericErrorContext,
! 5305: "HPP: entering MISC\n");
! 5306: #endif
! 5307: }
! 5308: break;
! 5309: case XML_PARSER_MISC:
! 5310: SKIP_BLANKS;
! 5311: if (in->buf == NULL)
! 5312: avail = in->length - (in->cur - in->base);
! 5313: else
! 5314: avail = in->buf->buffer->use - (in->cur - in->base);
! 5315: if (avail < 2)
! 5316: goto done;
! 5317: cur = in->cur[0];
! 5318: next = in->cur[1];
! 5319: if ((cur == '<') && (next == '!') &&
! 5320: (in->cur[2] == '-') && (in->cur[3] == '-')) {
! 5321: if ((!terminate) &&
! 5322: (htmlParseLookupSequence(ctxt, '-', '-', '>', 1, 1) < 0))
! 5323: goto done;
! 5324: #ifdef DEBUG_PUSH
! 5325: xmlGenericError(xmlGenericErrorContext,
! 5326: "HPP: Parsing Comment\n");
! 5327: #endif
! 5328: htmlParseComment(ctxt);
! 5329: ctxt->instate = XML_PARSER_MISC;
! 5330: } else if ((cur == '<') && (next == '?')) {
! 5331: if ((!terminate) &&
! 5332: (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0))
! 5333: goto done;
! 5334: #ifdef DEBUG_PUSH
! 5335: xmlGenericError(xmlGenericErrorContext,
! 5336: "HPP: Parsing PI\n");
! 5337: #endif
! 5338: htmlParsePI(ctxt);
! 5339: ctxt->instate = XML_PARSER_MISC;
! 5340: } else if ((cur == '<') && (next == '!') &&
! 5341: (UPP(2) == 'D') && (UPP(3) == 'O') &&
! 5342: (UPP(4) == 'C') && (UPP(5) == 'T') &&
! 5343: (UPP(6) == 'Y') && (UPP(7) == 'P') &&
! 5344: (UPP(8) == 'E')) {
! 5345: if ((!terminate) &&
! 5346: (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0))
! 5347: goto done;
! 5348: #ifdef DEBUG_PUSH
! 5349: xmlGenericError(xmlGenericErrorContext,
! 5350: "HPP: Parsing internal subset\n");
! 5351: #endif
! 5352: htmlParseDocTypeDecl(ctxt);
! 5353: ctxt->instate = XML_PARSER_PROLOG;
! 5354: #ifdef DEBUG_PUSH
! 5355: xmlGenericError(xmlGenericErrorContext,
! 5356: "HPP: entering PROLOG\n");
! 5357: #endif
! 5358: } else if ((cur == '<') && (next == '!') &&
! 5359: (avail < 9)) {
! 5360: goto done;
! 5361: } else {
! 5362: ctxt->instate = XML_PARSER_START_TAG;
! 5363: #ifdef DEBUG_PUSH
! 5364: xmlGenericError(xmlGenericErrorContext,
! 5365: "HPP: entering START_TAG\n");
! 5366: #endif
! 5367: }
! 5368: break;
! 5369: case XML_PARSER_PROLOG:
! 5370: SKIP_BLANKS;
! 5371: if (in->buf == NULL)
! 5372: avail = in->length - (in->cur - in->base);
! 5373: else
! 5374: avail = in->buf->buffer->use - (in->cur - in->base);
! 5375: if (avail < 2)
! 5376: goto done;
! 5377: cur = in->cur[0];
! 5378: next = in->cur[1];
! 5379: if ((cur == '<') && (next == '!') &&
! 5380: (in->cur[2] == '-') && (in->cur[3] == '-')) {
! 5381: if ((!terminate) &&
! 5382: (htmlParseLookupSequence(ctxt, '-', '-', '>', 1, 1) < 0))
! 5383: goto done;
! 5384: #ifdef DEBUG_PUSH
! 5385: xmlGenericError(xmlGenericErrorContext,
! 5386: "HPP: Parsing Comment\n");
! 5387: #endif
! 5388: htmlParseComment(ctxt);
! 5389: ctxt->instate = XML_PARSER_PROLOG;
! 5390: } else if ((cur == '<') && (next == '?')) {
! 5391: if ((!terminate) &&
! 5392: (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0))
! 5393: goto done;
! 5394: #ifdef DEBUG_PUSH
! 5395: xmlGenericError(xmlGenericErrorContext,
! 5396: "HPP: Parsing PI\n");
! 5397: #endif
! 5398: htmlParsePI(ctxt);
! 5399: ctxt->instate = XML_PARSER_PROLOG;
! 5400: } else if ((cur == '<') && (next == '!') &&
! 5401: (avail < 4)) {
! 5402: goto done;
! 5403: } else {
! 5404: ctxt->instate = XML_PARSER_START_TAG;
! 5405: #ifdef DEBUG_PUSH
! 5406: xmlGenericError(xmlGenericErrorContext,
! 5407: "HPP: entering START_TAG\n");
! 5408: #endif
! 5409: }
! 5410: break;
! 5411: case XML_PARSER_EPILOG:
! 5412: if (in->buf == NULL)
! 5413: avail = in->length - (in->cur - in->base);
! 5414: else
! 5415: avail = in->buf->buffer->use - (in->cur - in->base);
! 5416: if (avail < 1)
! 5417: goto done;
! 5418: cur = in->cur[0];
! 5419: if (IS_BLANK_CH(cur)) {
! 5420: htmlParseCharData(ctxt);
! 5421: goto done;
! 5422: }
! 5423: if (avail < 2)
! 5424: goto done;
! 5425: next = in->cur[1];
! 5426: if ((cur == '<') && (next == '!') &&
! 5427: (in->cur[2] == '-') && (in->cur[3] == '-')) {
! 5428: if ((!terminate) &&
! 5429: (htmlParseLookupSequence(ctxt, '-', '-', '>', 1, 1) < 0))
! 5430: goto done;
! 5431: #ifdef DEBUG_PUSH
! 5432: xmlGenericError(xmlGenericErrorContext,
! 5433: "HPP: Parsing Comment\n");
! 5434: #endif
! 5435: htmlParseComment(ctxt);
! 5436: ctxt->instate = XML_PARSER_EPILOG;
! 5437: } else if ((cur == '<') && (next == '?')) {
! 5438: if ((!terminate) &&
! 5439: (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0))
! 5440: goto done;
! 5441: #ifdef DEBUG_PUSH
! 5442: xmlGenericError(xmlGenericErrorContext,
! 5443: "HPP: Parsing PI\n");
! 5444: #endif
! 5445: htmlParsePI(ctxt);
! 5446: ctxt->instate = XML_PARSER_EPILOG;
! 5447: } else if ((cur == '<') && (next == '!') &&
! 5448: (avail < 4)) {
! 5449: goto done;
! 5450: } else {
! 5451: ctxt->errNo = XML_ERR_DOCUMENT_END;
! 5452: ctxt->wellFormed = 0;
! 5453: ctxt->instate = XML_PARSER_EOF;
! 5454: #ifdef DEBUG_PUSH
! 5455: xmlGenericError(xmlGenericErrorContext,
! 5456: "HPP: entering EOF\n");
! 5457: #endif
! 5458: if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
! 5459: ctxt->sax->endDocument(ctxt->userData);
! 5460: goto done;
! 5461: }
! 5462: break;
! 5463: case XML_PARSER_START_TAG: {
! 5464: const xmlChar *name;
! 5465: int failed;
! 5466: const htmlElemDesc * info;
! 5467:
! 5468: if (avail < 2)
! 5469: goto done;
! 5470: cur = in->cur[0];
! 5471: if (cur != '<') {
! 5472: ctxt->instate = XML_PARSER_CONTENT;
! 5473: #ifdef DEBUG_PUSH
! 5474: xmlGenericError(xmlGenericErrorContext,
! 5475: "HPP: entering CONTENT\n");
! 5476: #endif
! 5477: break;
! 5478: }
! 5479: if (in->cur[1] == '/') {
! 5480: ctxt->instate = XML_PARSER_END_TAG;
! 5481: ctxt->checkIndex = 0;
! 5482: #ifdef DEBUG_PUSH
! 5483: xmlGenericError(xmlGenericErrorContext,
! 5484: "HPP: entering END_TAG\n");
! 5485: #endif
! 5486: break;
! 5487: }
! 5488: if ((!terminate) &&
! 5489: (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0))
! 5490: goto done;
! 5491:
! 5492: failed = htmlParseStartTag(ctxt);
! 5493: name = ctxt->name;
! 5494: if ((failed == -1) ||
! 5495: (name == NULL)) {
! 5496: if (CUR == '>')
! 5497: NEXT;
! 5498: break;
! 5499: }
! 5500:
! 5501: /*
! 5502: * Lookup the info for that element.
! 5503: */
! 5504: info = htmlTagLookup(name);
! 5505: if (info == NULL) {
! 5506: htmlParseErr(ctxt, XML_HTML_UNKNOWN_TAG,
! 5507: "Tag %s invalid\n", name, NULL);
! 5508: }
! 5509:
! 5510: /*
! 5511: * Check for an Empty Element labeled the XML/SGML way
! 5512: */
! 5513: if ((CUR == '/') && (NXT(1) == '>')) {
! 5514: SKIP(2);
! 5515: if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
! 5516: ctxt->sax->endElement(ctxt->userData, name);
! 5517: htmlnamePop(ctxt);
! 5518: ctxt->instate = XML_PARSER_CONTENT;
! 5519: #ifdef DEBUG_PUSH
! 5520: xmlGenericError(xmlGenericErrorContext,
! 5521: "HPP: entering CONTENT\n");
! 5522: #endif
! 5523: break;
! 5524: }
! 5525:
! 5526: if (CUR == '>') {
! 5527: NEXT;
! 5528: } else {
! 5529: htmlParseErr(ctxt, XML_ERR_GT_REQUIRED,
! 5530: "Couldn't find end of Start Tag %s\n",
! 5531: name, NULL);
! 5532:
! 5533: /*
! 5534: * end of parsing of this node.
! 5535: */
! 5536: if (xmlStrEqual(name, ctxt->name)) {
! 5537: nodePop(ctxt);
! 5538: htmlnamePop(ctxt);
! 5539: }
! 5540:
! 5541: ctxt->instate = XML_PARSER_CONTENT;
! 5542: #ifdef DEBUG_PUSH
! 5543: xmlGenericError(xmlGenericErrorContext,
! 5544: "HPP: entering CONTENT\n");
! 5545: #endif
! 5546: break;
! 5547: }
! 5548:
! 5549: /*
! 5550: * Check for an Empty Element from DTD definition
! 5551: */
! 5552: if ((info != NULL) && (info->empty)) {
! 5553: if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
! 5554: ctxt->sax->endElement(ctxt->userData, name);
! 5555: htmlnamePop(ctxt);
! 5556: }
! 5557: ctxt->instate = XML_PARSER_CONTENT;
! 5558: #ifdef DEBUG_PUSH
! 5559: xmlGenericError(xmlGenericErrorContext,
! 5560: "HPP: entering CONTENT\n");
! 5561: #endif
! 5562: break;
! 5563: }
! 5564: case XML_PARSER_CONTENT: {
! 5565: long cons;
! 5566: /*
! 5567: * Handle preparsed entities and charRef
! 5568: */
! 5569: if (ctxt->token != 0) {
! 5570: xmlChar chr[2] = { 0 , 0 } ;
! 5571:
! 5572: chr[0] = (xmlChar) ctxt->token;
! 5573: htmlCheckParagraph(ctxt);
! 5574: if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL))
! 5575: ctxt->sax->characters(ctxt->userData, chr, 1);
! 5576: ctxt->token = 0;
! 5577: ctxt->checkIndex = 0;
! 5578: }
! 5579: if ((avail == 1) && (terminate)) {
! 5580: cur = in->cur[0];
! 5581: if ((cur != '<') && (cur != '&')) {
! 5582: if (ctxt->sax != NULL) {
! 5583: if (IS_BLANK_CH(cur)) {
! 5584: if (ctxt->sax->ignorableWhitespace != NULL)
! 5585: ctxt->sax->ignorableWhitespace(
! 5586: ctxt->userData, &cur, 1);
! 5587: } else {
! 5588: htmlCheckParagraph(ctxt);
! 5589: if (ctxt->sax->characters != NULL)
! 5590: ctxt->sax->characters(
! 5591: ctxt->userData, &cur, 1);
! 5592: }
! 5593: }
! 5594: ctxt->token = 0;
! 5595: ctxt->checkIndex = 0;
! 5596: in->cur++;
! 5597: break;
! 5598: }
! 5599: }
! 5600: if (avail < 2)
! 5601: goto done;
! 5602: cur = in->cur[0];
! 5603: next = in->cur[1];
! 5604: cons = ctxt->nbChars;
! 5605: if ((xmlStrEqual(ctxt->name, BAD_CAST"script")) ||
! 5606: (xmlStrEqual(ctxt->name, BAD_CAST"style"))) {
! 5607: /*
! 5608: * Handle SCRIPT/STYLE separately
! 5609: */
! 5610: if (!terminate) {
! 5611: int idx;
! 5612: xmlChar val;
! 5613:
! 5614: idx = htmlParseLookupSequence(ctxt, '<', '/', 0, 0, 0);
! 5615: if (idx < 0)
! 5616: goto done;
! 5617: val = in->cur[idx + 2];
! 5618: if (val == 0) /* bad cut of input */
! 5619: goto done;
! 5620: }
! 5621: htmlParseScript(ctxt);
! 5622: if ((cur == '<') && (next == '/')) {
! 5623: ctxt->instate = XML_PARSER_END_TAG;
! 5624: ctxt->checkIndex = 0;
! 5625: #ifdef DEBUG_PUSH
! 5626: xmlGenericError(xmlGenericErrorContext,
! 5627: "HPP: entering END_TAG\n");
! 5628: #endif
! 5629: break;
! 5630: }
! 5631: } else {
! 5632: /*
! 5633: * Sometimes DOCTYPE arrives in the middle of the document
! 5634: */
! 5635: if ((cur == '<') && (next == '!') &&
! 5636: (UPP(2) == 'D') && (UPP(3) == 'O') &&
! 5637: (UPP(4) == 'C') && (UPP(5) == 'T') &&
! 5638: (UPP(6) == 'Y') && (UPP(7) == 'P') &&
! 5639: (UPP(8) == 'E')) {
! 5640: if ((!terminate) &&
! 5641: (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0))
! 5642: goto done;
! 5643: htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR,
! 5644: "Misplaced DOCTYPE declaration\n",
! 5645: BAD_CAST "DOCTYPE" , NULL);
! 5646: htmlParseDocTypeDecl(ctxt);
! 5647: } else if ((cur == '<') && (next == '!') &&
! 5648: (in->cur[2] == '-') && (in->cur[3] == '-')) {
! 5649: if ((!terminate) &&
! 5650: (htmlParseLookupSequence(
! 5651: ctxt, '-', '-', '>', 1, 1) < 0))
! 5652: goto done;
! 5653: #ifdef DEBUG_PUSH
! 5654: xmlGenericError(xmlGenericErrorContext,
! 5655: "HPP: Parsing Comment\n");
! 5656: #endif
! 5657: htmlParseComment(ctxt);
! 5658: ctxt->instate = XML_PARSER_CONTENT;
! 5659: } else if ((cur == '<') && (next == '?')) {
! 5660: if ((!terminate) &&
! 5661: (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0))
! 5662: goto done;
! 5663: #ifdef DEBUG_PUSH
! 5664: xmlGenericError(xmlGenericErrorContext,
! 5665: "HPP: Parsing PI\n");
! 5666: #endif
! 5667: htmlParsePI(ctxt);
! 5668: ctxt->instate = XML_PARSER_CONTENT;
! 5669: } else if ((cur == '<') && (next == '!') && (avail < 4)) {
! 5670: goto done;
! 5671: } else if ((cur == '<') && (next == '/')) {
! 5672: ctxt->instate = XML_PARSER_END_TAG;
! 5673: ctxt->checkIndex = 0;
! 5674: #ifdef DEBUG_PUSH
! 5675: xmlGenericError(xmlGenericErrorContext,
! 5676: "HPP: entering END_TAG\n");
! 5677: #endif
! 5678: break;
! 5679: } else if (cur == '<') {
! 5680: ctxt->instate = XML_PARSER_START_TAG;
! 5681: ctxt->checkIndex = 0;
! 5682: #ifdef DEBUG_PUSH
! 5683: xmlGenericError(xmlGenericErrorContext,
! 5684: "HPP: entering START_TAG\n");
! 5685: #endif
! 5686: break;
! 5687: } else if (cur == '&') {
! 5688: if ((!terminate) &&
! 5689: (htmlParseLookupChars(ctxt,
! 5690: BAD_CAST "; >/", 4) < 0))
! 5691: goto done;
! 5692: #ifdef DEBUG_PUSH
! 5693: xmlGenericError(xmlGenericErrorContext,
! 5694: "HPP: Parsing Reference\n");
! 5695: #endif
! 5696: /* TODO: check generation of subtrees if noent !!! */
! 5697: htmlParseReference(ctxt);
! 5698: } else {
! 5699: /*
! 5700: * check that the text sequence is complete
! 5701: * before handing out the data to the parser
! 5702: * to avoid problems with erroneous end of
! 5703: * data detection.
! 5704: */
! 5705: if ((!terminate) &&
! 5706: (htmlParseLookupChars(ctxt, BAD_CAST "<&", 2) < 0))
! 5707: goto done;
! 5708: ctxt->checkIndex = 0;
! 5709: #ifdef DEBUG_PUSH
! 5710: xmlGenericError(xmlGenericErrorContext,
! 5711: "HPP: Parsing char data\n");
! 5712: #endif
! 5713: htmlParseCharData(ctxt);
! 5714: }
! 5715: }
! 5716: if (cons == ctxt->nbChars) {
! 5717: if (ctxt->node != NULL) {
! 5718: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5719: "detected an error in element content\n",
! 5720: NULL, NULL);
! 5721: }
! 5722: NEXT;
! 5723: break;
! 5724: }
! 5725:
! 5726: break;
! 5727: }
! 5728: case XML_PARSER_END_TAG:
! 5729: if (avail < 2)
! 5730: goto done;
! 5731: if ((!terminate) &&
! 5732: (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0))
! 5733: goto done;
! 5734: htmlParseEndTag(ctxt);
! 5735: if (ctxt->nameNr == 0) {
! 5736: ctxt->instate = XML_PARSER_EPILOG;
! 5737: } else {
! 5738: ctxt->instate = XML_PARSER_CONTENT;
! 5739: }
! 5740: ctxt->checkIndex = 0;
! 5741: #ifdef DEBUG_PUSH
! 5742: xmlGenericError(xmlGenericErrorContext,
! 5743: "HPP: entering CONTENT\n");
! 5744: #endif
! 5745: break;
! 5746: case XML_PARSER_CDATA_SECTION:
! 5747: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5748: "HPP: internal error, state == CDATA\n",
! 5749: NULL, NULL);
! 5750: ctxt->instate = XML_PARSER_CONTENT;
! 5751: ctxt->checkIndex = 0;
! 5752: #ifdef DEBUG_PUSH
! 5753: xmlGenericError(xmlGenericErrorContext,
! 5754: "HPP: entering CONTENT\n");
! 5755: #endif
! 5756: break;
! 5757: case XML_PARSER_DTD:
! 5758: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5759: "HPP: internal error, state == DTD\n",
! 5760: NULL, NULL);
! 5761: ctxt->instate = XML_PARSER_CONTENT;
! 5762: ctxt->checkIndex = 0;
! 5763: #ifdef DEBUG_PUSH
! 5764: xmlGenericError(xmlGenericErrorContext,
! 5765: "HPP: entering CONTENT\n");
! 5766: #endif
! 5767: break;
! 5768: case XML_PARSER_COMMENT:
! 5769: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5770: "HPP: internal error, state == COMMENT\n",
! 5771: NULL, NULL);
! 5772: ctxt->instate = XML_PARSER_CONTENT;
! 5773: ctxt->checkIndex = 0;
! 5774: #ifdef DEBUG_PUSH
! 5775: xmlGenericError(xmlGenericErrorContext,
! 5776: "HPP: entering CONTENT\n");
! 5777: #endif
! 5778: break;
! 5779: case XML_PARSER_PI:
! 5780: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5781: "HPP: internal error, state == PI\n",
! 5782: NULL, NULL);
! 5783: ctxt->instate = XML_PARSER_CONTENT;
! 5784: ctxt->checkIndex = 0;
! 5785: #ifdef DEBUG_PUSH
! 5786: xmlGenericError(xmlGenericErrorContext,
! 5787: "HPP: entering CONTENT\n");
! 5788: #endif
! 5789: break;
! 5790: case XML_PARSER_ENTITY_DECL:
! 5791: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5792: "HPP: internal error, state == ENTITY_DECL\n",
! 5793: NULL, NULL);
! 5794: ctxt->instate = XML_PARSER_CONTENT;
! 5795: ctxt->checkIndex = 0;
! 5796: #ifdef DEBUG_PUSH
! 5797: xmlGenericError(xmlGenericErrorContext,
! 5798: "HPP: entering CONTENT\n");
! 5799: #endif
! 5800: break;
! 5801: case XML_PARSER_ENTITY_VALUE:
! 5802: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5803: "HPP: internal error, state == ENTITY_VALUE\n",
! 5804: NULL, NULL);
! 5805: ctxt->instate = XML_PARSER_CONTENT;
! 5806: ctxt->checkIndex = 0;
! 5807: #ifdef DEBUG_PUSH
! 5808: xmlGenericError(xmlGenericErrorContext,
! 5809: "HPP: entering DTD\n");
! 5810: #endif
! 5811: break;
! 5812: case XML_PARSER_ATTRIBUTE_VALUE:
! 5813: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5814: "HPP: internal error, state == ATTRIBUTE_VALUE\n",
! 5815: NULL, NULL);
! 5816: ctxt->instate = XML_PARSER_START_TAG;
! 5817: ctxt->checkIndex = 0;
! 5818: #ifdef DEBUG_PUSH
! 5819: xmlGenericError(xmlGenericErrorContext,
! 5820: "HPP: entering START_TAG\n");
! 5821: #endif
! 5822: break;
! 5823: case XML_PARSER_SYSTEM_LITERAL:
! 5824: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5825: "HPP: internal error, state == XML_PARSER_SYSTEM_LITERAL\n",
! 5826: NULL, NULL);
! 5827: ctxt->instate = XML_PARSER_CONTENT;
! 5828: ctxt->checkIndex = 0;
! 5829: #ifdef DEBUG_PUSH
! 5830: xmlGenericError(xmlGenericErrorContext,
! 5831: "HPP: entering CONTENT\n");
! 5832: #endif
! 5833: break;
! 5834: case XML_PARSER_IGNORE:
! 5835: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5836: "HPP: internal error, state == XML_PARSER_IGNORE\n",
! 5837: NULL, NULL);
! 5838: ctxt->instate = XML_PARSER_CONTENT;
! 5839: ctxt->checkIndex = 0;
! 5840: #ifdef DEBUG_PUSH
! 5841: xmlGenericError(xmlGenericErrorContext,
! 5842: "HPP: entering CONTENT\n");
! 5843: #endif
! 5844: break;
! 5845: case XML_PARSER_PUBLIC_LITERAL:
! 5846: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5847: "HPP: internal error, state == XML_PARSER_LITERAL\n",
! 5848: NULL, NULL);
! 5849: ctxt->instate = XML_PARSER_CONTENT;
! 5850: ctxt->checkIndex = 0;
! 5851: #ifdef DEBUG_PUSH
! 5852: xmlGenericError(xmlGenericErrorContext,
! 5853: "HPP: entering CONTENT\n");
! 5854: #endif
! 5855: break;
! 5856:
! 5857: }
! 5858: }
! 5859: done:
! 5860: if ((avail == 0) && (terminate)) {
! 5861: htmlAutoCloseOnEnd(ctxt);
! 5862: if ((ctxt->nameNr == 0) && (ctxt->instate != XML_PARSER_EOF)) {
! 5863: /*
! 5864: * SAX: end of the document processing.
! 5865: */
! 5866: ctxt->instate = XML_PARSER_EOF;
! 5867: if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
! 5868: ctxt->sax->endDocument(ctxt->userData);
! 5869: }
! 5870: }
! 5871: if ((ctxt->myDoc != NULL) &&
! 5872: ((terminate) || (ctxt->instate == XML_PARSER_EOF) ||
! 5873: (ctxt->instate == XML_PARSER_EPILOG))) {
! 5874: xmlDtdPtr dtd;
! 5875: dtd = xmlGetIntSubset(ctxt->myDoc);
! 5876: if (dtd == NULL)
! 5877: ctxt->myDoc->intSubset =
! 5878: xmlCreateIntSubset(ctxt->myDoc, BAD_CAST "html",
! 5879: BAD_CAST "-//W3C//DTD HTML 4.0 Transitional//EN",
! 5880: BAD_CAST "http://www.w3.org/TR/REC-html40/loose.dtd");
! 5881: }
! 5882: #ifdef DEBUG_PUSH
! 5883: xmlGenericError(xmlGenericErrorContext, "HPP: done %d\n", ret);
! 5884: #endif
! 5885: return(ret);
! 5886: }
! 5887:
! 5888: /**
! 5889: * htmlParseChunk:
! 5890: * @ctxt: an HTML parser context
! 5891: * @chunk: an char array
! 5892: * @size: the size in byte of the chunk
! 5893: * @terminate: last chunk indicator
! 5894: *
! 5895: * Parse a Chunk of memory
! 5896: *
! 5897: * Returns zero if no error, the xmlParserErrors otherwise.
! 5898: */
! 5899: int
! 5900: htmlParseChunk(htmlParserCtxtPtr ctxt, const char *chunk, int size,
! 5901: int terminate) {
! 5902: if ((ctxt == NULL) || (ctxt->input == NULL)) {
! 5903: htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR,
! 5904: "htmlParseChunk: context error\n", NULL, NULL);
! 5905: return(XML_ERR_INTERNAL_ERROR);
! 5906: }
! 5907: if ((size > 0) && (chunk != NULL) && (ctxt->input != NULL) &&
! 5908: (ctxt->input->buf != NULL) && (ctxt->instate != XML_PARSER_EOF)) {
! 5909: int base = ctxt->input->base - ctxt->input->buf->buffer->content;
! 5910: int cur = ctxt->input->cur - ctxt->input->base;
! 5911: int res;
! 5912:
! 5913: res = xmlParserInputBufferPush(ctxt->input->buf, size, chunk);
! 5914: if (res < 0) {
! 5915: ctxt->errNo = XML_PARSER_EOF;
! 5916: ctxt->disableSAX = 1;
! 5917: return (XML_PARSER_EOF);
! 5918: }
! 5919: ctxt->input->base = ctxt->input->buf->buffer->content + base;
! 5920: ctxt->input->cur = ctxt->input->base + cur;
! 5921: ctxt->input->end =
! 5922: &ctxt->input->buf->buffer->content[ctxt->input->buf->buffer->use];
! 5923: #ifdef DEBUG_PUSH
! 5924: xmlGenericError(xmlGenericErrorContext, "HPP: pushed %d\n", size);
! 5925: #endif
! 5926:
! 5927: #if 0
! 5928: if ((terminate) || (ctxt->input->buf->buffer->use > 80))
! 5929: htmlParseTryOrFinish(ctxt, terminate);
! 5930: #endif
! 5931: } else if (ctxt->instate != XML_PARSER_EOF) {
! 5932: if ((ctxt->input != NULL) && ctxt->input->buf != NULL) {
! 5933: xmlParserInputBufferPtr in = ctxt->input->buf;
! 5934: if ((in->encoder != NULL) && (in->buffer != NULL) &&
! 5935: (in->raw != NULL)) {
! 5936: int nbchars;
! 5937:
! 5938: nbchars = xmlCharEncInFunc(in->encoder, in->buffer, in->raw);
! 5939: if (nbchars < 0) {
! 5940: htmlParseErr(ctxt, XML_ERR_INVALID_ENCODING,
! 5941: "encoder error\n", NULL, NULL);
! 5942: return(XML_ERR_INVALID_ENCODING);
! 5943: }
! 5944: }
! 5945: }
! 5946: }
! 5947: htmlParseTryOrFinish(ctxt, terminate);
! 5948: if (terminate) {
! 5949: if ((ctxt->instate != XML_PARSER_EOF) &&
! 5950: (ctxt->instate != XML_PARSER_EPILOG) &&
! 5951: (ctxt->instate != XML_PARSER_MISC)) {
! 5952: ctxt->errNo = XML_ERR_DOCUMENT_END;
! 5953: ctxt->wellFormed = 0;
! 5954: }
! 5955: if (ctxt->instate != XML_PARSER_EOF) {
! 5956: if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
! 5957: ctxt->sax->endDocument(ctxt->userData);
! 5958: }
! 5959: ctxt->instate = XML_PARSER_EOF;
! 5960: }
! 5961: return((xmlParserErrors) ctxt->errNo);
! 5962: }
! 5963:
! 5964: /************************************************************************
! 5965: * *
! 5966: * User entry points *
! 5967: * *
! 5968: ************************************************************************/
! 5969:
! 5970: /**
! 5971: * htmlCreatePushParserCtxt:
! 5972: * @sax: a SAX handler
! 5973: * @user_data: The user data returned on SAX callbacks
! 5974: * @chunk: a pointer to an array of chars
! 5975: * @size: number of chars in the array
! 5976: * @filename: an optional file name or URI
! 5977: * @enc: an optional encoding
! 5978: *
! 5979: * Create a parser context for using the HTML parser in push mode
! 5980: * The value of @filename is used for fetching external entities
! 5981: * and error/warning reports.
! 5982: *
! 5983: * Returns the new parser context or NULL
! 5984: */
! 5985: htmlParserCtxtPtr
! 5986: htmlCreatePushParserCtxt(htmlSAXHandlerPtr sax, void *user_data,
! 5987: const char *chunk, int size, const char *filename,
! 5988: xmlCharEncoding enc) {
! 5989: htmlParserCtxtPtr ctxt;
! 5990: htmlParserInputPtr inputStream;
! 5991: xmlParserInputBufferPtr buf;
! 5992:
! 5993: xmlInitParser();
! 5994:
! 5995: buf = xmlAllocParserInputBuffer(enc);
! 5996: if (buf == NULL) return(NULL);
! 5997:
! 5998: ctxt = htmlNewParserCtxt();
! 5999: if (ctxt == NULL) {
! 6000: xmlFreeParserInputBuffer(buf);
! 6001: return(NULL);
! 6002: }
! 6003: if(enc==XML_CHAR_ENCODING_UTF8 || buf->encoder)
! 6004: ctxt->charset=XML_CHAR_ENCODING_UTF8;
! 6005: if (sax != NULL) {
! 6006: if (ctxt->sax != (xmlSAXHandlerPtr) &htmlDefaultSAXHandler)
! 6007: xmlFree(ctxt->sax);
! 6008: ctxt->sax = (htmlSAXHandlerPtr) xmlMalloc(sizeof(htmlSAXHandler));
! 6009: if (ctxt->sax == NULL) {
! 6010: xmlFree(buf);
! 6011: xmlFree(ctxt);
! 6012: return(NULL);
! 6013: }
! 6014: memcpy(ctxt->sax, sax, sizeof(htmlSAXHandler));
! 6015: if (user_data != NULL)
! 6016: ctxt->userData = user_data;
! 6017: }
! 6018: if (filename == NULL) {
! 6019: ctxt->directory = NULL;
! 6020: } else {
! 6021: ctxt->directory = xmlParserGetDirectory(filename);
! 6022: }
! 6023:
! 6024: inputStream = htmlNewInputStream(ctxt);
! 6025: if (inputStream == NULL) {
! 6026: xmlFreeParserCtxt(ctxt);
! 6027: xmlFree(buf);
! 6028: return(NULL);
! 6029: }
! 6030:
! 6031: if (filename == NULL)
! 6032: inputStream->filename = NULL;
! 6033: else
! 6034: inputStream->filename = (char *)
! 6035: xmlCanonicPath((const xmlChar *) filename);
! 6036: inputStream->buf = buf;
! 6037: inputStream->base = inputStream->buf->buffer->content;
! 6038: inputStream->cur = inputStream->buf->buffer->content;
! 6039: inputStream->end =
! 6040: &inputStream->buf->buffer->content[inputStream->buf->buffer->use];
! 6041:
! 6042: inputPush(ctxt, inputStream);
! 6043:
! 6044: if ((size > 0) && (chunk != NULL) && (ctxt->input != NULL) &&
! 6045: (ctxt->input->buf != NULL)) {
! 6046: int base = ctxt->input->base - ctxt->input->buf->buffer->content;
! 6047: int cur = ctxt->input->cur - ctxt->input->base;
! 6048:
! 6049: xmlParserInputBufferPush(ctxt->input->buf, size, chunk);
! 6050:
! 6051: ctxt->input->base = ctxt->input->buf->buffer->content + base;
! 6052: ctxt->input->cur = ctxt->input->base + cur;
! 6053: ctxt->input->end =
! 6054: &ctxt->input->buf->buffer->content[ctxt->input->buf->buffer->use];
! 6055: #ifdef DEBUG_PUSH
! 6056: xmlGenericError(xmlGenericErrorContext, "HPP: pushed %d\n", size);
! 6057: #endif
! 6058: }
! 6059: ctxt->progressive = 1;
! 6060:
! 6061: return(ctxt);
! 6062: }
! 6063: #endif /* LIBXML_PUSH_ENABLED */
! 6064:
! 6065: /**
! 6066: * htmlSAXParseDoc:
! 6067: * @cur: a pointer to an array of xmlChar
! 6068: * @encoding: a free form C string describing the HTML document encoding, or NULL
! 6069: * @sax: the SAX handler block
! 6070: * @userData: if using SAX, this pointer will be provided on callbacks.
! 6071: *
! 6072: * Parse an HTML in-memory document. If sax is not NULL, use the SAX callbacks
! 6073: * to handle parse events. If sax is NULL, fallback to the default DOM
! 6074: * behavior and return a tree.
! 6075: *
! 6076: * Returns the resulting document tree unless SAX is NULL or the document is
! 6077: * not well formed.
! 6078: */
! 6079:
! 6080: htmlDocPtr
! 6081: htmlSAXParseDoc(xmlChar *cur, const char *encoding, htmlSAXHandlerPtr sax, void *userData) {
! 6082: htmlDocPtr ret;
! 6083: htmlParserCtxtPtr ctxt;
! 6084:
! 6085: xmlInitParser();
! 6086:
! 6087: if (cur == NULL) return(NULL);
! 6088:
! 6089:
! 6090: ctxt = htmlCreateDocParserCtxt(cur, encoding);
! 6091: if (ctxt == NULL) return(NULL);
! 6092: if (sax != NULL) {
! 6093: if (ctxt->sax != NULL) xmlFree (ctxt->sax);
! 6094: ctxt->sax = sax;
! 6095: ctxt->userData = userData;
! 6096: }
! 6097:
! 6098: htmlParseDocument(ctxt);
! 6099: ret = ctxt->myDoc;
! 6100: if (sax != NULL) {
! 6101: ctxt->sax = NULL;
! 6102: ctxt->userData = NULL;
! 6103: }
! 6104: htmlFreeParserCtxt(ctxt);
! 6105:
! 6106: return(ret);
! 6107: }
! 6108:
! 6109: /**
! 6110: * htmlParseDoc:
! 6111: * @cur: a pointer to an array of xmlChar
! 6112: * @encoding: a free form C string describing the HTML document encoding, or NULL
! 6113: *
! 6114: * parse an HTML in-memory document and build a tree.
! 6115: *
! 6116: * Returns the resulting document tree
! 6117: */
! 6118:
! 6119: htmlDocPtr
! 6120: htmlParseDoc(xmlChar *cur, const char *encoding) {
! 6121: return(htmlSAXParseDoc(cur, encoding, NULL, NULL));
! 6122: }
! 6123:
! 6124:
! 6125: /**
! 6126: * htmlCreateFileParserCtxt:
! 6127: * @filename: the filename
! 6128: * @encoding: a free form C string describing the HTML document encoding, or NULL
! 6129: *
! 6130: * Create a parser context for a file content.
! 6131: * Automatic support for ZLIB/Compress compressed document is provided
! 6132: * by default if found at compile-time.
! 6133: *
! 6134: * Returns the new parser context or NULL
! 6135: */
! 6136: htmlParserCtxtPtr
! 6137: htmlCreateFileParserCtxt(const char *filename, const char *encoding)
! 6138: {
! 6139: htmlParserCtxtPtr ctxt;
! 6140: htmlParserInputPtr inputStream;
! 6141: char *canonicFilename;
! 6142: /* htmlCharEncoding enc; */
! 6143: xmlChar *content, *content_line = (xmlChar *) "charset=";
! 6144:
! 6145: if (filename == NULL)
! 6146: return(NULL);
! 6147:
! 6148: ctxt = htmlNewParserCtxt();
! 6149: if (ctxt == NULL) {
! 6150: return(NULL);
! 6151: }
! 6152: canonicFilename = (char *) xmlCanonicPath((const xmlChar *) filename);
! 6153: if (canonicFilename == NULL) {
! 6154: #ifdef LIBXML_SAX1_ENABLED
! 6155: if (xmlDefaultSAXHandler.error != NULL) {
! 6156: xmlDefaultSAXHandler.error(NULL, "out of memory\n");
! 6157: }
! 6158: #endif
! 6159: xmlFreeParserCtxt(ctxt);
! 6160: return(NULL);
! 6161: }
! 6162:
! 6163: inputStream = xmlLoadExternalEntity(canonicFilename, NULL, ctxt);
! 6164: xmlFree(canonicFilename);
! 6165: if (inputStream == NULL) {
! 6166: xmlFreeParserCtxt(ctxt);
! 6167: return(NULL);
! 6168: }
! 6169:
! 6170: inputPush(ctxt, inputStream);
! 6171:
! 6172: /* set encoding */
! 6173: if (encoding) {
! 6174: content = xmlMallocAtomic (xmlStrlen(content_line) + strlen(encoding) + 1);
! 6175: if (content) {
! 6176: strcpy ((char *)content, (char *)content_line);
! 6177: strcat ((char *)content, (char *)encoding);
! 6178: htmlCheckEncoding (ctxt, content);
! 6179: xmlFree (content);
! 6180: }
! 6181: }
! 6182:
! 6183: return(ctxt);
! 6184: }
! 6185:
! 6186: /**
! 6187: * htmlSAXParseFile:
! 6188: * @filename: the filename
! 6189: * @encoding: a free form C string describing the HTML document encoding, or NULL
! 6190: * @sax: the SAX handler block
! 6191: * @userData: if using SAX, this pointer will be provided on callbacks.
! 6192: *
! 6193: * parse an HTML file and build a tree. Automatic support for ZLIB/Compress
! 6194: * compressed document is provided by default if found at compile-time.
! 6195: * It use the given SAX function block to handle the parsing callback.
! 6196: * If sax is NULL, fallback to the default DOM tree building routines.
! 6197: *
! 6198: * Returns the resulting document tree unless SAX is NULL or the document is
! 6199: * not well formed.
! 6200: */
! 6201:
! 6202: htmlDocPtr
! 6203: htmlSAXParseFile(const char *filename, const char *encoding, htmlSAXHandlerPtr sax,
! 6204: void *userData) {
! 6205: htmlDocPtr ret;
! 6206: htmlParserCtxtPtr ctxt;
! 6207: htmlSAXHandlerPtr oldsax = NULL;
! 6208:
! 6209: xmlInitParser();
! 6210:
! 6211: ctxt = htmlCreateFileParserCtxt(filename, encoding);
! 6212: if (ctxt == NULL) return(NULL);
! 6213: if (sax != NULL) {
! 6214: oldsax = ctxt->sax;
! 6215: ctxt->sax = sax;
! 6216: ctxt->userData = userData;
! 6217: }
! 6218:
! 6219: htmlParseDocument(ctxt);
! 6220:
! 6221: ret = ctxt->myDoc;
! 6222: if (sax != NULL) {
! 6223: ctxt->sax = oldsax;
! 6224: ctxt->userData = NULL;
! 6225: }
! 6226: htmlFreeParserCtxt(ctxt);
! 6227:
! 6228: return(ret);
! 6229: }
! 6230:
! 6231: /**
! 6232: * htmlParseFile:
! 6233: * @filename: the filename
! 6234: * @encoding: a free form C string describing the HTML document encoding, or NULL
! 6235: *
! 6236: * parse an HTML file and build a tree. Automatic support for ZLIB/Compress
! 6237: * compressed document is provided by default if found at compile-time.
! 6238: *
! 6239: * Returns the resulting document tree
! 6240: */
! 6241:
! 6242: htmlDocPtr
! 6243: htmlParseFile(const char *filename, const char *encoding) {
! 6244: return(htmlSAXParseFile(filename, encoding, NULL, NULL));
! 6245: }
! 6246:
! 6247: /**
! 6248: * htmlHandleOmittedElem:
! 6249: * @val: int 0 or 1
! 6250: *
! 6251: * Set and return the previous value for handling HTML omitted tags.
! 6252: *
! 6253: * Returns the last value for 0 for no handling, 1 for auto insertion.
! 6254: */
! 6255:
! 6256: int
! 6257: htmlHandleOmittedElem(int val) {
! 6258: int old = htmlOmittedDefaultValue;
! 6259:
! 6260: htmlOmittedDefaultValue = val;
! 6261: return(old);
! 6262: }
! 6263:
! 6264: /**
! 6265: * htmlElementAllowedHere:
! 6266: * @parent: HTML parent element
! 6267: * @elt: HTML element
! 6268: *
! 6269: * Checks whether an HTML element may be a direct child of a parent element.
! 6270: * Note - doesn't check for deprecated elements
! 6271: *
! 6272: * Returns 1 if allowed; 0 otherwise.
! 6273: */
! 6274: int
! 6275: htmlElementAllowedHere(const htmlElemDesc* parent, const xmlChar* elt) {
! 6276: const char** p ;
! 6277:
! 6278: if ( ! elt || ! parent || ! parent->subelts )
! 6279: return 0 ;
! 6280:
! 6281: for ( p = parent->subelts; *p; ++p )
! 6282: if ( !xmlStrcmp((const xmlChar *)*p, elt) )
! 6283: return 1 ;
! 6284:
! 6285: return 0 ;
! 6286: }
! 6287: /**
! 6288: * htmlElementStatusHere:
! 6289: * @parent: HTML parent element
! 6290: * @elt: HTML element
! 6291: *
! 6292: * Checks whether an HTML element may be a direct child of a parent element.
! 6293: * and if so whether it is valid or deprecated.
! 6294: *
! 6295: * Returns one of HTML_VALID, HTML_DEPRECATED, HTML_INVALID
! 6296: */
! 6297: htmlStatus
! 6298: htmlElementStatusHere(const htmlElemDesc* parent, const htmlElemDesc* elt) {
! 6299: if ( ! parent || ! elt )
! 6300: return HTML_INVALID ;
! 6301: if ( ! htmlElementAllowedHere(parent, (const xmlChar*) elt->name ) )
! 6302: return HTML_INVALID ;
! 6303:
! 6304: return ( elt->dtd == 0 ) ? HTML_VALID : HTML_DEPRECATED ;
! 6305: }
! 6306: /**
! 6307: * htmlAttrAllowed:
! 6308: * @elt: HTML element
! 6309: * @attr: HTML attribute
! 6310: * @legacy: whether to allow deprecated attributes
! 6311: *
! 6312: * Checks whether an attribute is valid for an element
! 6313: * Has full knowledge of Required and Deprecated attributes
! 6314: *
! 6315: * Returns one of HTML_REQUIRED, HTML_VALID, HTML_DEPRECATED, HTML_INVALID
! 6316: */
! 6317: htmlStatus
! 6318: htmlAttrAllowed(const htmlElemDesc* elt, const xmlChar* attr, int legacy) {
! 6319: const char** p ;
! 6320:
! 6321: if ( !elt || ! attr )
! 6322: return HTML_INVALID ;
! 6323:
! 6324: if ( elt->attrs_req )
! 6325: for ( p = elt->attrs_req; *p; ++p)
! 6326: if ( !xmlStrcmp((const xmlChar*)*p, attr) )
! 6327: return HTML_REQUIRED ;
! 6328:
! 6329: if ( elt->attrs_opt )
! 6330: for ( p = elt->attrs_opt; *p; ++p)
! 6331: if ( !xmlStrcmp((const xmlChar*)*p, attr) )
! 6332: return HTML_VALID ;
! 6333:
! 6334: if ( legacy && elt->attrs_depr )
! 6335: for ( p = elt->attrs_depr; *p; ++p)
! 6336: if ( !xmlStrcmp((const xmlChar*)*p, attr) )
! 6337: return HTML_DEPRECATED ;
! 6338:
! 6339: return HTML_INVALID ;
! 6340: }
! 6341: /**
! 6342: * htmlNodeStatus:
! 6343: * @node: an htmlNodePtr in a tree
! 6344: * @legacy: whether to allow deprecated elements (YES is faster here
! 6345: * for Element nodes)
! 6346: *
! 6347: * Checks whether the tree node is valid. Experimental (the author
! 6348: * only uses the HTML enhancements in a SAX parser)
! 6349: *
! 6350: * Return: for Element nodes, a return from htmlElementAllowedHere (if
! 6351: * legacy allowed) or htmlElementStatusHere (otherwise).
! 6352: * for Attribute nodes, a return from htmlAttrAllowed
! 6353: * for other nodes, HTML_NA (no checks performed)
! 6354: */
! 6355: htmlStatus
! 6356: htmlNodeStatus(const htmlNodePtr node, int legacy) {
! 6357: if ( ! node )
! 6358: return HTML_INVALID ;
! 6359:
! 6360: switch ( node->type ) {
! 6361: case XML_ELEMENT_NODE:
! 6362: return legacy
! 6363: ? ( htmlElementAllowedHere (
! 6364: htmlTagLookup(node->parent->name) , node->name
! 6365: ) ? HTML_VALID : HTML_INVALID )
! 6366: : htmlElementStatusHere(
! 6367: htmlTagLookup(node->parent->name) ,
! 6368: htmlTagLookup(node->name) )
! 6369: ;
! 6370: case XML_ATTRIBUTE_NODE:
! 6371: return htmlAttrAllowed(
! 6372: htmlTagLookup(node->parent->name) , node->name, legacy) ;
! 6373: default: return HTML_NA ;
! 6374: }
! 6375: }
! 6376: /************************************************************************
! 6377: * *
! 6378: * New set (2.6.0) of simpler and more flexible APIs *
! 6379: * *
! 6380: ************************************************************************/
! 6381: /**
! 6382: * DICT_FREE:
! 6383: * @str: a string
! 6384: *
! 6385: * Free a string if it is not owned by the "dict" dictionnary in the
! 6386: * current scope
! 6387: */
! 6388: #define DICT_FREE(str) \
! 6389: if ((str) && ((!dict) || \
! 6390: (xmlDictOwns(dict, (const xmlChar *)(str)) == 0))) \
! 6391: xmlFree((char *)(str));
! 6392:
! 6393: /**
! 6394: * htmlCtxtReset:
! 6395: * @ctxt: an HTML parser context
! 6396: *
! 6397: * Reset a parser context
! 6398: */
! 6399: void
! 6400: htmlCtxtReset(htmlParserCtxtPtr ctxt)
! 6401: {
! 6402: xmlParserInputPtr input;
! 6403: xmlDictPtr dict;
! 6404:
! 6405: if (ctxt == NULL)
! 6406: return;
! 6407:
! 6408: xmlInitParser();
! 6409: dict = ctxt->dict;
! 6410:
! 6411: while ((input = inputPop(ctxt)) != NULL) { /* Non consuming */
! 6412: xmlFreeInputStream(input);
! 6413: }
! 6414: ctxt->inputNr = 0;
! 6415: ctxt->input = NULL;
! 6416:
! 6417: ctxt->spaceNr = 0;
! 6418: if (ctxt->spaceTab != NULL) {
! 6419: ctxt->spaceTab[0] = -1;
! 6420: ctxt->space = &ctxt->spaceTab[0];
! 6421: } else {
! 6422: ctxt->space = NULL;
! 6423: }
! 6424:
! 6425:
! 6426: ctxt->nodeNr = 0;
! 6427: ctxt->node = NULL;
! 6428:
! 6429: ctxt->nameNr = 0;
! 6430: ctxt->name = NULL;
! 6431:
! 6432: DICT_FREE(ctxt->version);
! 6433: ctxt->version = NULL;
! 6434: DICT_FREE(ctxt->encoding);
! 6435: ctxt->encoding = NULL;
! 6436: DICT_FREE(ctxt->directory);
! 6437: ctxt->directory = NULL;
! 6438: DICT_FREE(ctxt->extSubURI);
! 6439: ctxt->extSubURI = NULL;
! 6440: DICT_FREE(ctxt->extSubSystem);
! 6441: ctxt->extSubSystem = NULL;
! 6442: if (ctxt->myDoc != NULL)
! 6443: xmlFreeDoc(ctxt->myDoc);
! 6444: ctxt->myDoc = NULL;
! 6445:
! 6446: ctxt->standalone = -1;
! 6447: ctxt->hasExternalSubset = 0;
! 6448: ctxt->hasPErefs = 0;
! 6449: ctxt->html = 1;
! 6450: ctxt->external = 0;
! 6451: ctxt->instate = XML_PARSER_START;
! 6452: ctxt->token = 0;
! 6453:
! 6454: ctxt->wellFormed = 1;
! 6455: ctxt->nsWellFormed = 1;
! 6456: ctxt->disableSAX = 0;
! 6457: ctxt->valid = 1;
! 6458: ctxt->vctxt.userData = ctxt;
! 6459: ctxt->vctxt.error = xmlParserValidityError;
! 6460: ctxt->vctxt.warning = xmlParserValidityWarning;
! 6461: ctxt->record_info = 0;
! 6462: ctxt->nbChars = 0;
! 6463: ctxt->checkIndex = 0;
! 6464: ctxt->inSubset = 0;
! 6465: ctxt->errNo = XML_ERR_OK;
! 6466: ctxt->depth = 0;
! 6467: ctxt->charset = XML_CHAR_ENCODING_NONE;
! 6468: ctxt->catalogs = NULL;
! 6469: xmlInitNodeInfoSeq(&ctxt->node_seq);
! 6470:
! 6471: if (ctxt->attsDefault != NULL) {
! 6472: xmlHashFree(ctxt->attsDefault, (xmlHashDeallocator) xmlFree);
! 6473: ctxt->attsDefault = NULL;
! 6474: }
! 6475: if (ctxt->attsSpecial != NULL) {
! 6476: xmlHashFree(ctxt->attsSpecial, NULL);
! 6477: ctxt->attsSpecial = NULL;
! 6478: }
! 6479: }
! 6480:
! 6481: /**
! 6482: * htmlCtxtUseOptions:
! 6483: * @ctxt: an HTML parser context
! 6484: * @options: a combination of htmlParserOption(s)
! 6485: *
! 6486: * Applies the options to the parser context
! 6487: *
! 6488: * Returns 0 in case of success, the set of unknown or unimplemented options
! 6489: * in case of error.
! 6490: */
! 6491: int
! 6492: htmlCtxtUseOptions(htmlParserCtxtPtr ctxt, int options)
! 6493: {
! 6494: if (ctxt == NULL)
! 6495: return(-1);
! 6496:
! 6497: if (options & HTML_PARSE_NOWARNING) {
! 6498: ctxt->sax->warning = NULL;
! 6499: ctxt->vctxt.warning = NULL;
! 6500: options -= XML_PARSE_NOWARNING;
! 6501: ctxt->options |= XML_PARSE_NOWARNING;
! 6502: }
! 6503: if (options & HTML_PARSE_NOERROR) {
! 6504: ctxt->sax->error = NULL;
! 6505: ctxt->vctxt.error = NULL;
! 6506: ctxt->sax->fatalError = NULL;
! 6507: options -= XML_PARSE_NOERROR;
! 6508: ctxt->options |= XML_PARSE_NOERROR;
! 6509: }
! 6510: if (options & HTML_PARSE_PEDANTIC) {
! 6511: ctxt->pedantic = 1;
! 6512: options -= XML_PARSE_PEDANTIC;
! 6513: ctxt->options |= XML_PARSE_PEDANTIC;
! 6514: } else
! 6515: ctxt->pedantic = 0;
! 6516: if (options & XML_PARSE_NOBLANKS) {
! 6517: ctxt->keepBlanks = 0;
! 6518: ctxt->sax->ignorableWhitespace = xmlSAX2IgnorableWhitespace;
! 6519: options -= XML_PARSE_NOBLANKS;
! 6520: ctxt->options |= XML_PARSE_NOBLANKS;
! 6521: } else
! 6522: ctxt->keepBlanks = 1;
! 6523: if (options & HTML_PARSE_RECOVER) {
! 6524: ctxt->recovery = 1;
! 6525: options -= HTML_PARSE_RECOVER;
! 6526: } else
! 6527: ctxt->recovery = 0;
! 6528: if (options & HTML_PARSE_COMPACT) {
! 6529: ctxt->options |= HTML_PARSE_COMPACT;
! 6530: options -= HTML_PARSE_COMPACT;
! 6531: }
! 6532: if (options & XML_PARSE_HUGE) {
! 6533: ctxt->options |= XML_PARSE_HUGE;
! 6534: options -= XML_PARSE_HUGE;
! 6535: }
! 6536: if (options & HTML_PARSE_NODEFDTD) {
! 6537: ctxt->options |= HTML_PARSE_NODEFDTD;
! 6538: options -= HTML_PARSE_NODEFDTD;
! 6539: }
! 6540: ctxt->dictNames = 0;
! 6541: return (options);
! 6542: }
! 6543:
! 6544: /**
! 6545: * htmlDoRead:
! 6546: * @ctxt: an HTML parser context
! 6547: * @URL: the base URL to use for the document
! 6548: * @encoding: the document encoding, or NULL
! 6549: * @options: a combination of htmlParserOption(s)
! 6550: * @reuse: keep the context for reuse
! 6551: *
! 6552: * Common front-end for the htmlRead functions
! 6553: *
! 6554: * Returns the resulting document tree or NULL
! 6555: */
! 6556: static htmlDocPtr
! 6557: htmlDoRead(htmlParserCtxtPtr ctxt, const char *URL, const char *encoding,
! 6558: int options, int reuse)
! 6559: {
! 6560: htmlDocPtr ret;
! 6561:
! 6562: htmlCtxtUseOptions(ctxt, options);
! 6563: ctxt->html = 1;
! 6564: if (encoding != NULL) {
! 6565: xmlCharEncodingHandlerPtr hdlr;
! 6566:
! 6567: hdlr = xmlFindCharEncodingHandler(encoding);
! 6568: if (hdlr != NULL) {
! 6569: xmlSwitchToEncoding(ctxt, hdlr);
! 6570: if (ctxt->input->encoding != NULL)
! 6571: xmlFree((xmlChar *) ctxt->input->encoding);
! 6572: ctxt->input->encoding = xmlStrdup((xmlChar *)encoding);
! 6573: }
! 6574: }
! 6575: if ((URL != NULL) && (ctxt->input != NULL) &&
! 6576: (ctxt->input->filename == NULL))
! 6577: ctxt->input->filename = (char *) xmlStrdup((const xmlChar *) URL);
! 6578: htmlParseDocument(ctxt);
! 6579: ret = ctxt->myDoc;
! 6580: ctxt->myDoc = NULL;
! 6581: if (!reuse) {
! 6582: if ((ctxt->dictNames) &&
! 6583: (ret != NULL) &&
! 6584: (ret->dict == ctxt->dict))
! 6585: ctxt->dict = NULL;
! 6586: xmlFreeParserCtxt(ctxt);
! 6587: }
! 6588: return (ret);
! 6589: }
! 6590:
! 6591: /**
! 6592: * htmlReadDoc:
! 6593: * @cur: a pointer to a zero terminated string
! 6594: * @URL: the base URL to use for the document
! 6595: * @encoding: the document encoding, or NULL
! 6596: * @options: a combination of htmlParserOption(s)
! 6597: *
! 6598: * parse an XML in-memory document and build a tree.
! 6599: *
! 6600: * Returns the resulting document tree
! 6601: */
! 6602: htmlDocPtr
! 6603: htmlReadDoc(const xmlChar * cur, const char *URL, const char *encoding, int options)
! 6604: {
! 6605: htmlParserCtxtPtr ctxt;
! 6606:
! 6607: if (cur == NULL)
! 6608: return (NULL);
! 6609:
! 6610: xmlInitParser();
! 6611: ctxt = htmlCreateDocParserCtxt(cur, NULL);
! 6612: if (ctxt == NULL)
! 6613: return (NULL);
! 6614: return (htmlDoRead(ctxt, URL, encoding, options, 0));
! 6615: }
! 6616:
! 6617: /**
! 6618: * htmlReadFile:
! 6619: * @filename: a file or URL
! 6620: * @encoding: the document encoding, or NULL
! 6621: * @options: a combination of htmlParserOption(s)
! 6622: *
! 6623: * parse an XML file from the filesystem or the network.
! 6624: *
! 6625: * Returns the resulting document tree
! 6626: */
! 6627: htmlDocPtr
! 6628: htmlReadFile(const char *filename, const char *encoding, int options)
! 6629: {
! 6630: htmlParserCtxtPtr ctxt;
! 6631:
! 6632: xmlInitParser();
! 6633: ctxt = htmlCreateFileParserCtxt(filename, encoding);
! 6634: if (ctxt == NULL)
! 6635: return (NULL);
! 6636: return (htmlDoRead(ctxt, NULL, NULL, options, 0));
! 6637: }
! 6638:
! 6639: /**
! 6640: * htmlReadMemory:
! 6641: * @buffer: a pointer to a char array
! 6642: * @size: the size of the array
! 6643: * @URL: the base URL to use for the document
! 6644: * @encoding: the document encoding, or NULL
! 6645: * @options: a combination of htmlParserOption(s)
! 6646: *
! 6647: * parse an XML in-memory document and build a tree.
! 6648: *
! 6649: * Returns the resulting document tree
! 6650: */
! 6651: htmlDocPtr
! 6652: htmlReadMemory(const char *buffer, int size, const char *URL, const char *encoding, int options)
! 6653: {
! 6654: htmlParserCtxtPtr ctxt;
! 6655:
! 6656: xmlInitParser();
! 6657: ctxt = xmlCreateMemoryParserCtxt(buffer, size);
! 6658: if (ctxt == NULL)
! 6659: return (NULL);
! 6660: htmlDefaultSAXHandlerInit();
! 6661: if (ctxt->sax != NULL)
! 6662: memcpy(ctxt->sax, &htmlDefaultSAXHandler, sizeof(xmlSAXHandlerV1));
! 6663: return (htmlDoRead(ctxt, URL, encoding, options, 0));
! 6664: }
! 6665:
! 6666: /**
! 6667: * htmlReadFd:
! 6668: * @fd: an open file descriptor
! 6669: * @URL: the base URL to use for the document
! 6670: * @encoding: the document encoding, or NULL
! 6671: * @options: a combination of htmlParserOption(s)
! 6672: *
! 6673: * parse an XML from a file descriptor and build a tree.
! 6674: *
! 6675: * Returns the resulting document tree
! 6676: */
! 6677: htmlDocPtr
! 6678: htmlReadFd(int fd, const char *URL, const char *encoding, int options)
! 6679: {
! 6680: htmlParserCtxtPtr ctxt;
! 6681: xmlParserInputBufferPtr input;
! 6682: xmlParserInputPtr stream;
! 6683:
! 6684: if (fd < 0)
! 6685: return (NULL);
! 6686:
! 6687: xmlInitParser();
! 6688: input = xmlParserInputBufferCreateFd(fd, XML_CHAR_ENCODING_NONE);
! 6689: if (input == NULL)
! 6690: return (NULL);
! 6691: ctxt = xmlNewParserCtxt();
! 6692: if (ctxt == NULL) {
! 6693: xmlFreeParserInputBuffer(input);
! 6694: return (NULL);
! 6695: }
! 6696: stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE);
! 6697: if (stream == NULL) {
! 6698: xmlFreeParserInputBuffer(input);
! 6699: xmlFreeParserCtxt(ctxt);
! 6700: return (NULL);
! 6701: }
! 6702: inputPush(ctxt, stream);
! 6703: return (htmlDoRead(ctxt, URL, encoding, options, 0));
! 6704: }
! 6705:
! 6706: /**
! 6707: * htmlReadIO:
! 6708: * @ioread: an I/O read function
! 6709: * @ioclose: an I/O close function
! 6710: * @ioctx: an I/O handler
! 6711: * @URL: the base URL to use for the document
! 6712: * @encoding: the document encoding, or NULL
! 6713: * @options: a combination of htmlParserOption(s)
! 6714: *
! 6715: * parse an HTML document from I/O functions and source and build a tree.
! 6716: *
! 6717: * Returns the resulting document tree
! 6718: */
! 6719: htmlDocPtr
! 6720: htmlReadIO(xmlInputReadCallback ioread, xmlInputCloseCallback ioclose,
! 6721: void *ioctx, const char *URL, const char *encoding, int options)
! 6722: {
! 6723: htmlParserCtxtPtr ctxt;
! 6724: xmlParserInputBufferPtr input;
! 6725: xmlParserInputPtr stream;
! 6726:
! 6727: if (ioread == NULL)
! 6728: return (NULL);
! 6729: xmlInitParser();
! 6730:
! 6731: input = xmlParserInputBufferCreateIO(ioread, ioclose, ioctx,
! 6732: XML_CHAR_ENCODING_NONE);
! 6733: if (input == NULL)
! 6734: return (NULL);
! 6735: ctxt = htmlNewParserCtxt();
! 6736: if (ctxt == NULL) {
! 6737: xmlFreeParserInputBuffer(input);
! 6738: return (NULL);
! 6739: }
! 6740: stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE);
! 6741: if (stream == NULL) {
! 6742: xmlFreeParserInputBuffer(input);
! 6743: xmlFreeParserCtxt(ctxt);
! 6744: return (NULL);
! 6745: }
! 6746: inputPush(ctxt, stream);
! 6747: return (htmlDoRead(ctxt, URL, encoding, options, 0));
! 6748: }
! 6749:
! 6750: /**
! 6751: * htmlCtxtReadDoc:
! 6752: * @ctxt: an HTML parser context
! 6753: * @cur: a pointer to a zero terminated string
! 6754: * @URL: the base URL to use for the document
! 6755: * @encoding: the document encoding, or NULL
! 6756: * @options: a combination of htmlParserOption(s)
! 6757: *
! 6758: * parse an XML in-memory document and build a tree.
! 6759: * This reuses the existing @ctxt parser context
! 6760: *
! 6761: * Returns the resulting document tree
! 6762: */
! 6763: htmlDocPtr
! 6764: htmlCtxtReadDoc(htmlParserCtxtPtr ctxt, const xmlChar * cur,
! 6765: const char *URL, const char *encoding, int options)
! 6766: {
! 6767: xmlParserInputPtr stream;
! 6768:
! 6769: if (cur == NULL)
! 6770: return (NULL);
! 6771: if (ctxt == NULL)
! 6772: return (NULL);
! 6773:
! 6774: htmlCtxtReset(ctxt);
! 6775:
! 6776: stream = xmlNewStringInputStream(ctxt, cur);
! 6777: if (stream == NULL) {
! 6778: return (NULL);
! 6779: }
! 6780: inputPush(ctxt, stream);
! 6781: return (htmlDoRead(ctxt, URL, encoding, options, 1));
! 6782: }
! 6783:
! 6784: /**
! 6785: * htmlCtxtReadFile:
! 6786: * @ctxt: an HTML parser context
! 6787: * @filename: a file or URL
! 6788: * @encoding: the document encoding, or NULL
! 6789: * @options: a combination of htmlParserOption(s)
! 6790: *
! 6791: * parse an XML file from the filesystem or the network.
! 6792: * This reuses the existing @ctxt parser context
! 6793: *
! 6794: * Returns the resulting document tree
! 6795: */
! 6796: htmlDocPtr
! 6797: htmlCtxtReadFile(htmlParserCtxtPtr ctxt, const char *filename,
! 6798: const char *encoding, int options)
! 6799: {
! 6800: xmlParserInputPtr stream;
! 6801:
! 6802: if (filename == NULL)
! 6803: return (NULL);
! 6804: if (ctxt == NULL)
! 6805: return (NULL);
! 6806:
! 6807: htmlCtxtReset(ctxt);
! 6808:
! 6809: stream = xmlLoadExternalEntity(filename, NULL, ctxt);
! 6810: if (stream == NULL) {
! 6811: return (NULL);
! 6812: }
! 6813: inputPush(ctxt, stream);
! 6814: return (htmlDoRead(ctxt, NULL, encoding, options, 1));
! 6815: }
! 6816:
! 6817: /**
! 6818: * htmlCtxtReadMemory:
! 6819: * @ctxt: an HTML parser context
! 6820: * @buffer: a pointer to a char array
! 6821: * @size: the size of the array
! 6822: * @URL: the base URL to use for the document
! 6823: * @encoding: the document encoding, or NULL
! 6824: * @options: a combination of htmlParserOption(s)
! 6825: *
! 6826: * parse an XML in-memory document and build a tree.
! 6827: * This reuses the existing @ctxt parser context
! 6828: *
! 6829: * Returns the resulting document tree
! 6830: */
! 6831: htmlDocPtr
! 6832: htmlCtxtReadMemory(htmlParserCtxtPtr ctxt, const char *buffer, int size,
! 6833: const char *URL, const char *encoding, int options)
! 6834: {
! 6835: xmlParserInputBufferPtr input;
! 6836: xmlParserInputPtr stream;
! 6837:
! 6838: if (ctxt == NULL)
! 6839: return (NULL);
! 6840: if (buffer == NULL)
! 6841: return (NULL);
! 6842:
! 6843: htmlCtxtReset(ctxt);
! 6844:
! 6845: input = xmlParserInputBufferCreateMem(buffer, size, XML_CHAR_ENCODING_NONE);
! 6846: if (input == NULL) {
! 6847: return(NULL);
! 6848: }
! 6849:
! 6850: stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE);
! 6851: if (stream == NULL) {
! 6852: xmlFreeParserInputBuffer(input);
! 6853: return(NULL);
! 6854: }
! 6855:
! 6856: inputPush(ctxt, stream);
! 6857: return (htmlDoRead(ctxt, URL, encoding, options, 1));
! 6858: }
! 6859:
! 6860: /**
! 6861: * htmlCtxtReadFd:
! 6862: * @ctxt: an HTML parser context
! 6863: * @fd: an open file descriptor
! 6864: * @URL: the base URL to use for the document
! 6865: * @encoding: the document encoding, or NULL
! 6866: * @options: a combination of htmlParserOption(s)
! 6867: *
! 6868: * parse an XML from a file descriptor and build a tree.
! 6869: * This reuses the existing @ctxt parser context
! 6870: *
! 6871: * Returns the resulting document tree
! 6872: */
! 6873: htmlDocPtr
! 6874: htmlCtxtReadFd(htmlParserCtxtPtr ctxt, int fd,
! 6875: const char *URL, const char *encoding, int options)
! 6876: {
! 6877: xmlParserInputBufferPtr input;
! 6878: xmlParserInputPtr stream;
! 6879:
! 6880: if (fd < 0)
! 6881: return (NULL);
! 6882: if (ctxt == NULL)
! 6883: return (NULL);
! 6884:
! 6885: htmlCtxtReset(ctxt);
! 6886:
! 6887:
! 6888: input = xmlParserInputBufferCreateFd(fd, XML_CHAR_ENCODING_NONE);
! 6889: if (input == NULL)
! 6890: return (NULL);
! 6891: stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE);
! 6892: if (stream == NULL) {
! 6893: xmlFreeParserInputBuffer(input);
! 6894: return (NULL);
! 6895: }
! 6896: inputPush(ctxt, stream);
! 6897: return (htmlDoRead(ctxt, URL, encoding, options, 1));
! 6898: }
! 6899:
! 6900: /**
! 6901: * htmlCtxtReadIO:
! 6902: * @ctxt: an HTML parser context
! 6903: * @ioread: an I/O read function
! 6904: * @ioclose: an I/O close function
! 6905: * @ioctx: an I/O handler
! 6906: * @URL: the base URL to use for the document
! 6907: * @encoding: the document encoding, or NULL
! 6908: * @options: a combination of htmlParserOption(s)
! 6909: *
! 6910: * parse an HTML document from I/O functions and source and build a tree.
! 6911: * This reuses the existing @ctxt parser context
! 6912: *
! 6913: * Returns the resulting document tree
! 6914: */
! 6915: htmlDocPtr
! 6916: htmlCtxtReadIO(htmlParserCtxtPtr ctxt, xmlInputReadCallback ioread,
! 6917: xmlInputCloseCallback ioclose, void *ioctx,
! 6918: const char *URL,
! 6919: const char *encoding, int options)
! 6920: {
! 6921: xmlParserInputBufferPtr input;
! 6922: xmlParserInputPtr stream;
! 6923:
! 6924: if (ioread == NULL)
! 6925: return (NULL);
! 6926: if (ctxt == NULL)
! 6927: return (NULL);
! 6928:
! 6929: htmlCtxtReset(ctxt);
! 6930:
! 6931: input = xmlParserInputBufferCreateIO(ioread, ioclose, ioctx,
! 6932: XML_CHAR_ENCODING_NONE);
! 6933: if (input == NULL)
! 6934: return (NULL);
! 6935: stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE);
! 6936: if (stream == NULL) {
! 6937: xmlFreeParserInputBuffer(input);
! 6938: return (NULL);
! 6939: }
! 6940: inputPush(ctxt, stream);
! 6941: return (htmlDoRead(ctxt, URL, encoding, options, 1));
! 6942: }
! 6943:
! 6944: #define bottom_HTMLparser
! 6945: #include "elfgcchack.h"
! 6946: #endif /* LIBXML_HTML_ENABLED */
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