Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1 | /* |
| 2 | * HTMLparser.c : an HTML 4.0 non-verifying parser |
| 3 | * |
| 4 | * See Copyright for the status of this software. |
| 5 | * |
Daniel Veillard | c5d6434 | 2001-06-24 12:13:24 +0000 | [diff] [blame] | 6 | * daniel@veillard.com |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
Daniel Veillard | 34ce8be | 2002-03-18 19:37:11 +0000 | [diff] [blame] | 9 | #define IN_LIBXML |
Bjorn Reese | 70a9da5 | 2001-04-21 16:57:29 +0000 | [diff] [blame] | 10 | #include "libxml.h" |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 11 | #ifdef LIBXML_HTML_ENABLED |
Bjorn Reese | 70a9da5 | 2001-04-21 16:57:29 +0000 | [diff] [blame] | 12 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 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> |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 39 | #include <libxml/HTMLtree.h> |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 40 | #include <libxml/entities.h> |
| 41 | #include <libxml/encoding.h> |
| 42 | #include <libxml/valid.h> |
| 43 | #include <libxml/xmlIO.h> |
Daniel Veillard | 3c01b1d | 2001-10-17 15:58:35 +0000 | [diff] [blame] | 44 | #include <libxml/globals.h> |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 45 | |
| 46 | #define HTML_MAX_NAMELEN 1000 |
| 47 | #define HTML_PARSER_BIG_BUFFER_SIZE 1000 |
| 48 | #define HTML_PARSER_BUFFER_SIZE 100 |
| 49 | |
| 50 | /* #define DEBUG */ |
| 51 | /* #define DEBUG_PUSH */ |
| 52 | |
Daniel Veillard | 2209073 | 2001-07-16 00:06:07 +0000 | [diff] [blame] | 53 | static int htmlOmittedDefaultValue = 1; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 54 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 55 | xmlChar * htmlDecodeEntities(htmlParserCtxtPtr ctxt, int len, |
| 56 | xmlChar end, xmlChar end2, xmlChar end3); |
Daniel Veillard | c1f7834 | 2001-11-10 11:43:05 +0000 | [diff] [blame] | 57 | static void htmlParseComment(htmlParserCtxtPtr ctxt); |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 58 | |
| 59 | /************************************************************************ |
| 60 | * * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 61 | * Parser stacks related functions and macros * |
| 62 | * * |
| 63 | ************************************************************************/ |
| 64 | |
| 65 | /* |
| 66 | * Generic function for accessing stacks in the Parser Context |
| 67 | */ |
| 68 | |
| 69 | #define PUSH_AND_POP(scope, type, name) \ |
| 70 | scope int html##name##Push(htmlParserCtxtPtr ctxt, type value) { \ |
| 71 | if (ctxt->name##Nr >= ctxt->name##Max) { \ |
| 72 | ctxt->name##Max *= 2; \ |
| 73 | ctxt->name##Tab = (type *) xmlRealloc(ctxt->name##Tab, \ |
| 74 | ctxt->name##Max * sizeof(ctxt->name##Tab[0])); \ |
| 75 | if (ctxt->name##Tab == NULL) { \ |
| 76 | xmlGenericError(xmlGenericErrorContext, \ |
| 77 | "realloc failed !\n"); \ |
| 78 | return(0); \ |
| 79 | } \ |
| 80 | } \ |
| 81 | ctxt->name##Tab[ctxt->name##Nr] = value; \ |
| 82 | ctxt->name = value; \ |
| 83 | return(ctxt->name##Nr++); \ |
| 84 | } \ |
| 85 | scope type html##name##Pop(htmlParserCtxtPtr ctxt) { \ |
| 86 | type ret; \ |
| 87 | if (ctxt->name##Nr < 0) return(0); \ |
| 88 | ctxt->name##Nr--; \ |
| 89 | if (ctxt->name##Nr < 0) return(0); \ |
| 90 | if (ctxt->name##Nr > 0) \ |
| 91 | ctxt->name = ctxt->name##Tab[ctxt->name##Nr - 1]; \ |
| 92 | else \ |
| 93 | ctxt->name = NULL; \ |
| 94 | ret = ctxt->name##Tab[ctxt->name##Nr]; \ |
| 95 | ctxt->name##Tab[ctxt->name##Nr] = 0; \ |
| 96 | return(ret); \ |
| 97 | } \ |
| 98 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 99 | /* PUSH_AND_POP(static, xmlNodePtr, node) */ |
| 100 | PUSH_AND_POP(static, xmlChar*, name) |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 101 | |
| 102 | /* |
| 103 | * Macros for accessing the content. Those should be used only by the parser, |
| 104 | * and not exported. |
| 105 | * |
| 106 | * Dirty macros, i.e. one need to make assumption on the context to use them |
| 107 | * |
| 108 | * CUR_PTR return the current pointer to the xmlChar to be parsed. |
| 109 | * CUR returns the current xmlChar value, i.e. a 8 bit value if compiled |
| 110 | * in ISO-Latin or UTF-8, and the current 16 bit value if compiled |
| 111 | * in UNICODE mode. This should be used internally by the parser |
| 112 | * only to compare to ASCII values otherwise it would break when |
| 113 | * running with UTF-8 encoding. |
| 114 | * NXT(n) returns the n'th next xmlChar. Same as CUR is should be used only |
| 115 | * to compare on ASCII based substring. |
| 116 | * UPP(n) returns the n'th next xmlChar converted to uppercase. Same as CUR |
| 117 | * it should be used only to compare on ASCII based substring. |
| 118 | * SKIP(n) Skip n xmlChar, and must also be used only to skip ASCII defined |
| 119 | * strings within the parser. |
| 120 | * |
| 121 | * Clean macros, not dependent of an ASCII context, expect UTF-8 encoding |
| 122 | * |
| 123 | * CURRENT Returns the current char value, with the full decoding of |
| 124 | * UTF-8 if we are using this mode. It returns an int. |
| 125 | * NEXT Skip to the next character, this does the proper decoding |
| 126 | * in UTF-8 mode. It also pop-up unfinished entities on the fly. |
| 127 | * COPY(to) copy one char to *to, increment CUR_PTR and to accordingly |
| 128 | */ |
| 129 | |
| 130 | #define UPPER (toupper(*ctxt->input->cur)) |
| 131 | |
| 132 | #define SKIP(val) ctxt->nbChars += (val),ctxt->input->cur += (val) |
| 133 | |
| 134 | #define NXT(val) ctxt->input->cur[(val)] |
| 135 | |
| 136 | #define UPP(val) (toupper(ctxt->input->cur[(val)])) |
| 137 | |
| 138 | #define CUR_PTR ctxt->input->cur |
| 139 | |
| 140 | #define SHRINK xmlParserInputShrink(ctxt->input) |
| 141 | |
| 142 | #define GROW xmlParserInputGrow(ctxt->input, INPUT_CHUNK) |
| 143 | |
| 144 | #define CURRENT ((int) (*ctxt->input->cur)) |
| 145 | |
| 146 | #define SKIP_BLANKS htmlSkipBlankChars(ctxt) |
| 147 | |
| 148 | /* Inported from XML */ |
| 149 | |
Daniel Veillard | 561b7f8 | 2002-03-20 21:55:57 +0000 | [diff] [blame] | 150 | /* #define CUR (ctxt->token ? ctxt->token : (int) (*ctxt->input->cur)) */ |
| 151 | #define CUR ((int) (*ctxt->input->cur)) |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 152 | #define NEXT xmlNextChar(ctxt),ctxt->nbChars++ |
| 153 | |
Daniel Veillard | 561b7f8 | 2002-03-20 21:55:57 +0000 | [diff] [blame] | 154 | #define RAW (ctxt->token ? -1 : (*ctxt->input->cur)) |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 155 | #define NXT(val) ctxt->input->cur[(val)] |
| 156 | #define CUR_PTR ctxt->input->cur |
| 157 | |
| 158 | |
| 159 | #define NEXTL(l) do { \ |
| 160 | if (*(ctxt->input->cur) == '\n') { \ |
| 161 | ctxt->input->line++; ctxt->input->col = 1; \ |
| 162 | } else ctxt->input->col++; \ |
| 163 | ctxt->token = 0; ctxt->input->cur += l; ctxt->nbChars++; \ |
| 164 | } while (0) |
| 165 | |
| 166 | /************ |
| 167 | \ |
| 168 | if (*ctxt->input->cur == '%') xmlParserHandlePEReference(ctxt); \ |
| 169 | if (*ctxt->input->cur == '&') xmlParserHandleReference(ctxt); |
| 170 | ************/ |
| 171 | |
| 172 | #define CUR_CHAR(l) htmlCurrentChar(ctxt, &l) |
| 173 | #define CUR_SCHAR(s, l) xmlStringCurrentChar(ctxt, s, &l) |
| 174 | |
| 175 | #define COPY_BUF(l,b,i,v) \ |
| 176 | if (l == 1) b[i++] = (xmlChar) v; \ |
| 177 | else i += xmlCopyChar(l,&b[i],v) |
| 178 | |
| 179 | /** |
| 180 | * htmlCurrentChar: |
| 181 | * @ctxt: the HTML parser context |
| 182 | * @len: pointer to the length of the char read |
| 183 | * |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 184 | * The current char value, if using UTF-8 this may actually span multiple |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 185 | * bytes in the input buffer. Implement the end of line normalization: |
| 186 | * 2.11 End-of-Line Handling |
| 187 | * If the encoding is unspecified, in the case we find an ISO-Latin-1 |
| 188 | * char, then the encoding converter is plugged in automatically. |
| 189 | * |
Daniel Veillard | 60087f3 | 2001-10-10 09:45:09 +0000 | [diff] [blame] | 190 | * Returns the current char value and its length |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 191 | */ |
| 192 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 193 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 194 | htmlCurrentChar(xmlParserCtxtPtr ctxt, int *len) { |
| 195 | if (ctxt->instate == XML_PARSER_EOF) |
| 196 | return(0); |
| 197 | |
| 198 | if (ctxt->token != 0) { |
| 199 | *len = 0; |
| 200 | return(ctxt->token); |
| 201 | } |
| 202 | if (ctxt->charset == XML_CHAR_ENCODING_UTF8) { |
| 203 | /* |
| 204 | * We are supposed to handle UTF8, check it's valid |
| 205 | * From rfc2044: encoding of the Unicode values on UTF-8: |
| 206 | * |
| 207 | * UCS-4 range (hex.) UTF-8 octet sequence (binary) |
| 208 | * 0000 0000-0000 007F 0xxxxxxx |
| 209 | * 0000 0080-0000 07FF 110xxxxx 10xxxxxx |
| 210 | * 0000 0800-0000 FFFF 1110xxxx 10xxxxxx 10xxxxxx |
| 211 | * |
| 212 | * Check for the 0x110000 limit too |
| 213 | */ |
| 214 | const unsigned char *cur = ctxt->input->cur; |
| 215 | unsigned char c; |
| 216 | unsigned int val; |
| 217 | |
| 218 | c = *cur; |
| 219 | if (c & 0x80) { |
| 220 | if (cur[1] == 0) |
| 221 | xmlParserInputGrow(ctxt->input, INPUT_CHUNK); |
| 222 | if ((cur[1] & 0xc0) != 0x80) |
| 223 | goto encoding_error; |
| 224 | if ((c & 0xe0) == 0xe0) { |
| 225 | |
| 226 | if (cur[2] == 0) |
| 227 | xmlParserInputGrow(ctxt->input, INPUT_CHUNK); |
| 228 | if ((cur[2] & 0xc0) != 0x80) |
| 229 | goto encoding_error; |
| 230 | if ((c & 0xf0) == 0xf0) { |
| 231 | if (cur[3] == 0) |
| 232 | xmlParserInputGrow(ctxt->input, INPUT_CHUNK); |
| 233 | if (((c & 0xf8) != 0xf0) || |
| 234 | ((cur[3] & 0xc0) != 0x80)) |
| 235 | goto encoding_error; |
| 236 | /* 4-byte code */ |
| 237 | *len = 4; |
| 238 | val = (cur[0] & 0x7) << 18; |
| 239 | val |= (cur[1] & 0x3f) << 12; |
| 240 | val |= (cur[2] & 0x3f) << 6; |
| 241 | val |= cur[3] & 0x3f; |
| 242 | } else { |
| 243 | /* 3-byte code */ |
| 244 | *len = 3; |
| 245 | val = (cur[0] & 0xf) << 12; |
| 246 | val |= (cur[1] & 0x3f) << 6; |
| 247 | val |= cur[2] & 0x3f; |
| 248 | } |
| 249 | } else { |
| 250 | /* 2-byte code */ |
| 251 | *len = 2; |
| 252 | val = (cur[0] & 0x1f) << 6; |
| 253 | val |= cur[1] & 0x3f; |
| 254 | } |
| 255 | if (!IS_CHAR(val)) { |
| 256 | ctxt->errNo = XML_ERR_INVALID_ENCODING; |
| 257 | if ((ctxt->sax != NULL) && |
| 258 | (ctxt->sax->error != NULL)) |
| 259 | ctxt->sax->error(ctxt->userData, |
| 260 | "Char 0x%X out of allowed range\n", val); |
| 261 | ctxt->wellFormed = 0; |
| 262 | ctxt->disableSAX = 1; |
| 263 | } |
| 264 | return(val); |
| 265 | } else { |
| 266 | /* 1-byte code */ |
| 267 | *len = 1; |
| 268 | return((int) *ctxt->input->cur); |
| 269 | } |
| 270 | } |
| 271 | /* |
Daniel Veillard | 60087f3 | 2001-10-10 09:45:09 +0000 | [diff] [blame] | 272 | * Assume it's a fixed length encoding (1) with |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 273 | * a compatible encoding for the ASCII set, since |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 274 | * XML constructs only use < 128 chars |
| 275 | */ |
| 276 | *len = 1; |
| 277 | if ((int) *ctxt->input->cur < 0x80) |
| 278 | return((int) *ctxt->input->cur); |
| 279 | |
| 280 | /* |
| 281 | * Humm this is bad, do an automatic flow conversion |
| 282 | */ |
| 283 | xmlSwitchEncoding(ctxt, XML_CHAR_ENCODING_8859_1); |
| 284 | ctxt->charset = XML_CHAR_ENCODING_UTF8; |
| 285 | return(xmlCurrentChar(ctxt, len)); |
| 286 | |
| 287 | encoding_error: |
| 288 | /* |
| 289 | * If we detect an UTF8 error that probably mean that the |
| 290 | * input encoding didn't get properly advertized in the |
| 291 | * declaration header. Report the error and switch the encoding |
| 292 | * to ISO-Latin-1 (if you don't like this policy, just declare the |
| 293 | * encoding !) |
| 294 | */ |
| 295 | ctxt->errNo = XML_ERR_INVALID_ENCODING; |
| 296 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) { |
| 297 | ctxt->sax->error(ctxt->userData, |
| 298 | "Input is not proper UTF-8, indicate encoding !\n"); |
| 299 | ctxt->sax->error(ctxt->userData, "Bytes: 0x%02X 0x%02X 0x%02X 0x%02X\n", |
| 300 | ctxt->input->cur[0], ctxt->input->cur[1], |
| 301 | ctxt->input->cur[2], ctxt->input->cur[3]); |
| 302 | } |
| 303 | |
| 304 | ctxt->charset = XML_CHAR_ENCODING_8859_1; |
| 305 | *len = 1; |
| 306 | return((int) *ctxt->input->cur); |
| 307 | } |
| 308 | |
| 309 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 310 | * htmlSkipBlankChars: |
| 311 | * @ctxt: the HTML parser context |
| 312 | * |
| 313 | * skip all blanks character found at that point in the input streams. |
| 314 | * |
| 315 | * Returns the number of space chars skipped |
| 316 | */ |
| 317 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 318 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 319 | htmlSkipBlankChars(xmlParserCtxtPtr ctxt) { |
| 320 | int res = 0; |
| 321 | |
| 322 | while (IS_BLANK(*(ctxt->input->cur))) { |
| 323 | if ((*ctxt->input->cur == 0) && |
| 324 | (xmlParserInputGrow(ctxt->input, INPUT_CHUNK) <= 0)) { |
| 325 | xmlPopInput(ctxt); |
| 326 | } else { |
| 327 | if (*(ctxt->input->cur) == '\n') { |
| 328 | ctxt->input->line++; ctxt->input->col = 1; |
| 329 | } else ctxt->input->col++; |
| 330 | ctxt->input->cur++; |
| 331 | ctxt->nbChars++; |
| 332 | if (*ctxt->input->cur == 0) |
| 333 | xmlParserInputGrow(ctxt->input, INPUT_CHUNK); |
| 334 | } |
| 335 | res++; |
| 336 | } |
| 337 | return(res); |
| 338 | } |
| 339 | |
| 340 | |
| 341 | |
| 342 | /************************************************************************ |
| 343 | * * |
| 344 | * The list of HTML elements and their properties * |
| 345 | * * |
| 346 | ************************************************************************/ |
| 347 | |
| 348 | /* |
| 349 | * Start Tag: 1 means the start tag can be ommited |
| 350 | * End Tag: 1 means the end tag can be ommited |
| 351 | * 2 means it's forbidden (empty elements) |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 352 | * 3 means the tag is stylistic and should be closed easily |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 353 | * Depr: this element is deprecated |
| 354 | * DTD: 1 means that this element is valid only in the Loose DTD |
| 355 | * 2 means that this element is valid only in the Frameset DTD |
| 356 | * |
Daniel Veillard | 02bb170 | 2001-06-13 21:11:59 +0000 | [diff] [blame] | 357 | * Name,Start Tag,End Tag,Save End,Empty,Deprecated,DTD,inline,Description |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 358 | */ |
Daniel Veillard | 2209073 | 2001-07-16 00:06:07 +0000 | [diff] [blame] | 359 | static const htmlElemDesc |
| 360 | html40ElementTable[] = { |
Daniel Veillard | 02bb170 | 2001-06-13 21:11:59 +0000 | [diff] [blame] | 361 | { "a", 0, 0, 0, 0, 0, 0, 1, "anchor " }, |
| 362 | { "abbr", 0, 0, 0, 0, 0, 0, 1, "abbreviated form" }, |
| 363 | { "acronym", 0, 0, 0, 0, 0, 0, 1, "" }, |
| 364 | { "address", 0, 0, 0, 0, 0, 0, 0, "information on author " }, |
| 365 | { "applet", 0, 0, 0, 0, 1, 1, 2, "java applet " }, |
| 366 | { "area", 0, 2, 2, 1, 0, 0, 0, "client-side image map area " }, |
| 367 | { "b", 0, 3, 0, 0, 0, 0, 1, "bold text style" }, |
| 368 | { "base", 0, 2, 2, 1, 0, 0, 0, "document base uri " }, |
| 369 | { "basefont", 0, 2, 2, 1, 1, 1, 1, "base font size " }, |
| 370 | { "bdo", 0, 0, 0, 0, 0, 0, 1, "i18n bidi over-ride " }, |
| 371 | { "big", 0, 3, 0, 0, 0, 0, 1, "large text style" }, |
| 372 | { "blockquote", 0, 0, 0, 0, 0, 0, 0, "long quotation " }, |
| 373 | { "body", 1, 1, 0, 0, 0, 0, 0, "document body " }, |
| 374 | { "br", 0, 2, 2, 1, 0, 0, 1, "forced line break " }, |
| 375 | { "button", 0, 0, 0, 0, 0, 0, 2, "push button " }, |
| 376 | { "caption", 0, 0, 0, 0, 0, 0, 0, "table caption " }, |
| 377 | { "center", 0, 3, 0, 0, 1, 1, 0, "shorthand for div align=center " }, |
| 378 | { "cite", 0, 0, 0, 0, 0, 0, 1, "citation" }, |
| 379 | { "code", 0, 0, 0, 0, 0, 0, 1, "computer code fragment" }, |
| 380 | { "col", 0, 2, 2, 1, 0, 0, 0, "table column " }, |
| 381 | { "colgroup", 0, 1, 0, 0, 0, 0, 0, "table column group " }, |
| 382 | { "dd", 0, 1, 0, 0, 0, 0, 0, "definition description " }, |
| 383 | { "del", 0, 0, 0, 0, 0, 0, 2, "deleted text " }, |
| 384 | { "dfn", 0, 0, 0, 0, 0, 0, 1, "instance definition" }, |
| 385 | { "dir", 0, 0, 0, 0, 1, 1, 0, "directory list" }, |
| 386 | { "div", 0, 0, 0, 0, 0, 0, 0, "generic language/style container"}, |
| 387 | { "dl", 0, 0, 0, 0, 0, 0, 0, "definition list " }, |
| 388 | { "dt", 0, 1, 0, 0, 0, 0, 0, "definition term " }, |
| 389 | { "em", 0, 3, 0, 0, 0, 0, 1, "emphasis" }, |
| 390 | { "fieldset", 0, 0, 0, 0, 0, 0, 0, "form control group " }, |
| 391 | { "font", 0, 3, 0, 0, 1, 1, 1, "local change to font " }, |
| 392 | { "form", 0, 0, 0, 0, 0, 0, 0, "interactive form " }, |
| 393 | { "frame", 0, 2, 2, 1, 0, 2, 0, "subwindow " }, |
| 394 | { "frameset", 0, 0, 0, 0, 0, 2, 0, "window subdivision" }, |
| 395 | { "h1", 0, 0, 0, 0, 0, 0, 0, "heading " }, |
| 396 | { "h2", 0, 0, 0, 0, 0, 0, 0, "heading " }, |
| 397 | { "h3", 0, 0, 0, 0, 0, 0, 0, "heading " }, |
| 398 | { "h4", 0, 0, 0, 0, 0, 0, 0, "heading " }, |
| 399 | { "h5", 0, 0, 0, 0, 0, 0, 0, "heading " }, |
| 400 | { "h6", 0, 0, 0, 0, 0, 0, 0, "heading " }, |
| 401 | { "head", 1, 1, 0, 0, 0, 0, 0, "document head " }, |
| 402 | { "hr", 0, 2, 2, 1, 0, 0, 0, "horizontal rule " }, |
| 403 | { "html", 1, 1, 0, 0, 0, 0, 0, "document root element " }, |
| 404 | { "i", 0, 3, 0, 0, 0, 0, 1, "italic text style" }, |
| 405 | { "iframe", 0, 0, 0, 0, 0, 1, 2, "inline subwindow " }, |
| 406 | { "img", 0, 2, 2, 1, 0, 0, 1, "embedded image " }, |
| 407 | { "input", 0, 2, 2, 1, 0, 0, 1, "form control " }, |
| 408 | { "ins", 0, 0, 0, 0, 0, 0, 2, "inserted text" }, |
| 409 | { "isindex", 0, 2, 2, 1, 1, 1, 0, "single line prompt " }, |
| 410 | { "kbd", 0, 0, 0, 0, 0, 0, 1, "text to be entered by the user" }, |
| 411 | { "label", 0, 0, 0, 0, 0, 0, 1, "form field label text " }, |
| 412 | { "legend", 0, 0, 0, 0, 0, 0, 0, "fieldset legend " }, |
| 413 | { "li", 0, 1, 1, 0, 0, 0, 0, "list item " }, |
| 414 | { "link", 0, 2, 2, 1, 0, 0, 0, "a media-independent link " }, |
| 415 | { "map", 0, 0, 0, 0, 0, 0, 2, "client-side image map " }, |
| 416 | { "menu", 0, 0, 0, 0, 1, 1, 0, "menu list " }, |
| 417 | { "meta", 0, 2, 2, 1, 0, 0, 0, "generic metainformation " }, |
| 418 | { "noframes", 0, 0, 0, 0, 0, 2, 0, "alternate content container for non frame-based rendering " }, |
| 419 | { "noscript", 0, 0, 0, 0, 0, 0, 0, "alternate content container for non script-based rendering " }, |
| 420 | { "object", 0, 0, 0, 0, 0, 0, 2, "generic embedded object " }, |
| 421 | { "ol", 0, 0, 0, 0, 0, 0, 0, "ordered list " }, |
| 422 | { "optgroup", 0, 0, 0, 0, 0, 0, 0, "option group " }, |
| 423 | { "option", 0, 1, 0, 0, 0, 0, 0, "selectable choice " }, |
| 424 | { "p", 0, 1, 1, 0, 0, 0, 0, "paragraph " }, |
| 425 | { "param", 0, 2, 2, 1, 0, 0, 0, "named property value " }, |
| 426 | { "pre", 0, 0, 0, 0, 0, 0, 0, "preformatted text " }, |
| 427 | { "q", 0, 0, 0, 0, 0, 0, 1, "short inline quotation " }, |
| 428 | { "s", 0, 3, 0, 0, 1, 1, 1, "strike-through text style" }, |
| 429 | { "samp", 0, 0, 0, 0, 0, 0, 1, "sample program output, scripts, etc." }, |
| 430 | { "script", 0, 0, 0, 0, 0, 0, 2, "script statements " }, |
| 431 | { "select", 0, 0, 0, 0, 0, 0, 1, "option selector " }, |
| 432 | { "small", 0, 3, 0, 0, 0, 0, 1, "small text style" }, |
| 433 | { "span", 0, 0, 0, 0, 0, 0, 1, "generic language/style container " }, |
| 434 | { "strike", 0, 3, 0, 0, 1, 1, 1, "strike-through text" }, |
| 435 | { "strong", 0, 3, 0, 0, 0, 0, 1, "strong emphasis" }, |
| 436 | { "style", 0, 0, 0, 0, 0, 0, 0, "style info " }, |
| 437 | { "sub", 0, 3, 0, 0, 0, 0, 1, "subscript" }, |
| 438 | { "sup", 0, 3, 0, 0, 0, 0, 1, "superscript " }, |
| 439 | { "table", 0, 0, 0, 0, 0, 0, 0, " " }, |
| 440 | { "tbody", 1, 0, 0, 0, 0, 0, 0, "table body " }, |
| 441 | { "td", 0, 0, 0, 0, 0, 0, 0, "table data cell" }, |
| 442 | { "textarea", 0, 0, 0, 0, 0, 0, 1, "multi-line text field " }, |
| 443 | { "tfoot", 0, 1, 0, 0, 0, 0, 0, "table footer " }, |
| 444 | { "th", 0, 1, 0, 0, 0, 0, 0, "table header cell" }, |
| 445 | { "thead", 0, 1, 0, 0, 0, 0, 0, "table header " }, |
| 446 | { "title", 0, 0, 0, 0, 0, 0, 0, "document title " }, |
| 447 | { "tr", 0, 0, 0, 0, 0, 0, 0, "table row " }, |
| 448 | { "tt", 0, 3, 0, 0, 0, 0, 1, "teletype or monospaced text style" }, |
| 449 | { "u", 0, 3, 0, 0, 1, 1, 1, "underlined text style" }, |
| 450 | { "ul", 0, 0, 0, 0, 0, 0, 0, "unordered list " }, |
| 451 | { "var", 0, 0, 0, 0, 0, 0, 1, "instance of a variable or program argument" }, |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 452 | }; |
| 453 | |
| 454 | /* |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 455 | * start tags that imply the end of current element |
| 456 | */ |
Daniel Veillard | 2209073 | 2001-07-16 00:06:07 +0000 | [diff] [blame] | 457 | static const char *htmlStartClose[] = { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 458 | "form", "form", "p", "hr", "h1", "h2", "h3", "h4", "h5", "h6", |
| 459 | "dl", "ul", "ol", "menu", "dir", "address", "pre", |
| 460 | "listing", "xmp", "head", NULL, |
| 461 | "head", "p", NULL, |
| 462 | "title", "p", NULL, |
| 463 | "body", "head", "style", "link", "title", "p", NULL, |
| 464 | "li", "p", "h1", "h2", "h3", "h4", "h5", "h6", "dl", "address", |
| 465 | "pre", "listing", "xmp", "head", "li", NULL, |
| 466 | "hr", "p", "head", NULL, |
| 467 | "h1", "p", "head", NULL, |
| 468 | "h2", "p", "head", NULL, |
| 469 | "h3", "p", "head", NULL, |
| 470 | "h4", "p", "head", NULL, |
| 471 | "h5", "p", "head", NULL, |
| 472 | "h6", "p", "head", NULL, |
| 473 | "dir", "p", "head", NULL, |
| 474 | "address", "p", "head", "ul", NULL, |
| 475 | "pre", "p", "head", "ul", NULL, |
| 476 | "listing", "p", "head", NULL, |
| 477 | "xmp", "p", "head", NULL, |
| 478 | "blockquote", "p", "head", NULL, |
| 479 | "dl", "p", "dt", "menu", "dir", "address", "pre", "listing", |
| 480 | "xmp", "head", NULL, |
| 481 | "dt", "p", "menu", "dir", "address", "pre", "listing", "xmp", |
| 482 | "head", "dd", NULL, |
| 483 | "dd", "p", "menu", "dir", "address", "pre", "listing", "xmp", |
| 484 | "head", "dt", NULL, |
| 485 | "ul", "p", "head", "ol", "menu", "dir", "address", "pre", |
| 486 | "listing", "xmp", NULL, |
| 487 | "ol", "p", "head", "ul", NULL, |
| 488 | "menu", "p", "head", "ul", NULL, |
| 489 | "p", "p", "head", "h1", "h2", "h3", "h4", "h5", "h6", NULL, |
| 490 | "div", "p", "head", NULL, |
| 491 | "noscript", "p", "head", NULL, |
| 492 | "center", "font", "b", "i", "p", "head", NULL, |
| 493 | "a", "a", NULL, |
| 494 | "caption", "p", NULL, |
| 495 | "colgroup", "caption", "colgroup", "col", "p", NULL, |
| 496 | "col", "caption", "col", "p", NULL, |
| 497 | "table", "p", "head", "h1", "h2", "h3", "h4", "h5", "h6", "pre", |
| 498 | "listing", "xmp", "a", NULL, |
Daniel Veillard | 43dadeb | 2001-04-24 11:23:35 +0000 | [diff] [blame] | 499 | "th", "th", "td", "p", "span", "font", "a", "b", "i", "u", NULL, |
| 500 | "td", "th", "td", "p", "span", "font", "a", "b", "i", "u", NULL, |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 501 | "tr", "th", "td", "tr", "caption", "col", "colgroup", "p", NULL, |
| 502 | "thead", "caption", "col", "colgroup", NULL, |
| 503 | "tfoot", "th", "td", "tr", "caption", "col", "colgroup", "thead", |
| 504 | "tbody", "p", NULL, |
| 505 | "tbody", "th", "td", "tr", "caption", "col", "colgroup", "thead", |
| 506 | "tfoot", "tbody", "p", NULL, |
| 507 | "optgroup", "option", NULL, |
| 508 | "option", "option", NULL, |
| 509 | "fieldset", "legend", "p", "head", "h1", "h2", "h3", "h4", "h5", "h6", |
| 510 | "pre", "listing", "xmp", "a", NULL, |
| 511 | NULL |
| 512 | }; |
| 513 | |
| 514 | /* |
| 515 | * The list of HTML elements which are supposed not to have |
| 516 | * CDATA content and where a p element will be implied |
| 517 | * |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 518 | * TODO: extend that list by reading the HTML SGML DTD on |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 519 | * implied paragraph |
| 520 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 521 | static const char *htmlNoContentElements[] = { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 522 | "html", |
| 523 | "head", |
| 524 | "body", |
| 525 | NULL |
| 526 | }; |
| 527 | |
| 528 | /* |
| 529 | * The list of HTML attributes which are of content %Script; |
| 530 | * NOTE: when adding ones, check htmlIsScriptAttribute() since |
| 531 | * it assumes the name starts with 'on' |
| 532 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 533 | static const char *htmlScriptAttributes[] = { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 534 | "onclick", |
| 535 | "ondblclick", |
| 536 | "onmousedown", |
| 537 | "onmouseup", |
| 538 | "onmouseover", |
| 539 | "onmousemove", |
| 540 | "onmouseout", |
| 541 | "onkeypress", |
| 542 | "onkeydown", |
| 543 | "onkeyup", |
| 544 | "onload", |
| 545 | "onunload", |
| 546 | "onfocus", |
| 547 | "onblur", |
| 548 | "onsubmit", |
| 549 | "onrest", |
| 550 | "onchange", |
| 551 | "onselect" |
| 552 | }; |
| 553 | |
Daniel Veillard | a2bc368 | 2001-05-03 08:27:20 +0000 | [diff] [blame] | 554 | /* |
Daniel Veillard | 0a2a163 | 2001-05-11 14:18:03 +0000 | [diff] [blame] | 555 | * This table is used by the htmlparser to know what to do with |
| 556 | * broken html pages. By assigning different priorities to different |
| 557 | * elements the parser can decide how to handle extra endtags. |
| 558 | * Endtags are only allowed to close elements with lower or equal |
| 559 | * priority. |
| 560 | */ |
Daniel Veillard | a2bc368 | 2001-05-03 08:27:20 +0000 | [diff] [blame] | 561 | |
Daniel Veillard | 0a2a163 | 2001-05-11 14:18:03 +0000 | [diff] [blame] | 562 | typedef struct { |
| 563 | const char *name; |
| 564 | int priority; |
| 565 | } elementPriority; |
| 566 | |
Daniel Veillard | 2209073 | 2001-07-16 00:06:07 +0000 | [diff] [blame] | 567 | static const elementPriority htmlEndPriority[] = { |
Daniel Veillard | 0a2a163 | 2001-05-11 14:18:03 +0000 | [diff] [blame] | 568 | {"div", 150}, |
| 569 | {"td", 160}, |
| 570 | {"th", 160}, |
| 571 | {"tr", 170}, |
| 572 | {"thead", 180}, |
| 573 | {"tbody", 180}, |
| 574 | {"tfoot", 180}, |
| 575 | {"table", 190}, |
| 576 | {"head", 200}, |
| 577 | {"body", 200}, |
| 578 | {"html", 220}, |
| 579 | {NULL, 100} /* Default priority */ |
| 580 | }; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 581 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 582 | static const char** htmlStartCloseIndex[100]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 583 | static int htmlStartCloseIndexinitialized = 0; |
| 584 | |
| 585 | /************************************************************************ |
| 586 | * * |
| 587 | * functions to handle HTML specific data * |
| 588 | * * |
| 589 | ************************************************************************/ |
| 590 | |
| 591 | /** |
| 592 | * htmlInitAutoClose: |
| 593 | * |
| 594 | * Initialize the htmlStartCloseIndex for fast lookup of closing tags names. |
| 595 | * This is not reentrant. Call xmlInitParser() once before processing in |
| 596 | * case of use in multithreaded programs. |
| 597 | */ |
| 598 | void |
| 599 | htmlInitAutoClose(void) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 600 | int indx, i = 0; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 601 | |
| 602 | if (htmlStartCloseIndexinitialized) return; |
| 603 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 604 | for (indx = 0;indx < 100;indx ++) htmlStartCloseIndex[indx] = NULL; |
| 605 | indx = 0; |
| 606 | while ((htmlStartClose[i] != NULL) && (indx < 100 - 1)) { |
| 607 | htmlStartCloseIndex[indx++] = &htmlStartClose[i]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 608 | while (htmlStartClose[i] != NULL) i++; |
| 609 | i++; |
| 610 | } |
| 611 | htmlStartCloseIndexinitialized = 1; |
| 612 | } |
| 613 | |
| 614 | /** |
| 615 | * htmlTagLookup: |
| 616 | * @tag: The tag name in lowercase |
| 617 | * |
| 618 | * Lookup the HTML tag in the ElementTable |
| 619 | * |
| 620 | * Returns the related htmlElemDescPtr or NULL if not found. |
| 621 | */ |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 622 | const htmlElemDesc * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 623 | htmlTagLookup(const xmlChar *tag) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 624 | unsigned int i; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 625 | |
| 626 | for (i = 0; i < (sizeof(html40ElementTable) / |
| 627 | sizeof(html40ElementTable[0]));i++) { |
Daniel Veillard | 1ed3f88 | 2001-04-18 09:45:35 +0000 | [diff] [blame] | 628 | if (!xmlStrcasecmp(tag, BAD_CAST html40ElementTable[i].name)) |
Daniel Veillard | 2209073 | 2001-07-16 00:06:07 +0000 | [diff] [blame] | 629 | return((const htmlElemDescPtr) (const htmlElemDescPtr) (const htmlElemDescPtr) (const htmlElemDescPtr) (const htmlElemDescPtr) (const htmlElemDescPtr) (const htmlElemDescPtr) (const htmlElemDescPtr) (const htmlElemDescPtr) &html40ElementTable[i]); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 630 | } |
| 631 | return(NULL); |
| 632 | } |
| 633 | |
| 634 | /** |
Daniel Veillard | 0a2a163 | 2001-05-11 14:18:03 +0000 | [diff] [blame] | 635 | * htmlGetEndPriority: |
| 636 | * @name: The name of the element to look up the priority for. |
| 637 | * |
| 638 | * Return value: The "endtag" priority. |
| 639 | **/ |
| 640 | static int |
| 641 | htmlGetEndPriority (const xmlChar *name) { |
| 642 | int i = 0; |
| 643 | |
| 644 | while ((htmlEndPriority[i].name != NULL) && |
| 645 | (!xmlStrEqual((const xmlChar *)htmlEndPriority[i].name, name))) |
| 646 | i++; |
| 647 | |
| 648 | return(htmlEndPriority[i].priority); |
| 649 | } |
| 650 | |
| 651 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 652 | * htmlCheckAutoClose: |
| 653 | * @newtag: The new tag name |
| 654 | * @oldtag: The old tag name |
| 655 | * |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 656 | * Checks whether the new tag is one of the registered valid tags for |
| 657 | * closing old. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 658 | * Initialize the htmlStartCloseIndex for fast lookup of closing tags names. |
| 659 | * |
| 660 | * Returns 0 if no, 1 if yes. |
| 661 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 662 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 663 | htmlCheckAutoClose(const xmlChar *newtag, const xmlChar *oldtag) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 664 | int i, indx; |
| 665 | const char **closed = NULL; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 666 | |
| 667 | if (htmlStartCloseIndexinitialized == 0) htmlInitAutoClose(); |
| 668 | |
| 669 | /* inefficient, but not a big deal */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 670 | for (indx = 0; indx < 100;indx++) { |
| 671 | closed = htmlStartCloseIndex[indx]; |
| 672 | if (closed == NULL) return(0); |
| 673 | if (xmlStrEqual(BAD_CAST *closed, newtag)) break; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 674 | } |
| 675 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 676 | i = closed - htmlStartClose; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 677 | i++; |
| 678 | while (htmlStartClose[i] != NULL) { |
| 679 | if (xmlStrEqual(BAD_CAST htmlStartClose[i], oldtag)) { |
| 680 | return(1); |
| 681 | } |
| 682 | i++; |
| 683 | } |
| 684 | return(0); |
| 685 | } |
| 686 | |
| 687 | /** |
| 688 | * htmlAutoCloseOnClose: |
| 689 | * @ctxt: an HTML parser context |
| 690 | * @newtag: The new tag name |
Daniel Veillard | a3bfca5 | 2001-04-12 15:42:58 +0000 | [diff] [blame] | 691 | * @force: force the tag closure |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 692 | * |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 693 | * The HTML DTD allows an ending tag to implicitly close other tags. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 694 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 695 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 696 | htmlAutoCloseOnClose(htmlParserCtxtPtr ctxt, const xmlChar *newtag) { |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 697 | const htmlElemDesc * info; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 698 | xmlChar *oldname; |
Daniel Veillard | 0a2a163 | 2001-05-11 14:18:03 +0000 | [diff] [blame] | 699 | int i, priority; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 700 | |
| 701 | #ifdef DEBUG |
| 702 | xmlGenericError(xmlGenericErrorContext,"Close of %s stack: %d elements\n", newtag, ctxt->nameNr); |
| 703 | for (i = 0;i < ctxt->nameNr;i++) |
| 704 | xmlGenericError(xmlGenericErrorContext,"%d : %s\n", i, ctxt->nameTab[i]); |
| 705 | #endif |
| 706 | |
Daniel Veillard | 0a2a163 | 2001-05-11 14:18:03 +0000 | [diff] [blame] | 707 | priority = htmlGetEndPriority (newtag); |
| 708 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 709 | for (i = (ctxt->nameNr - 1);i >= 0;i--) { |
Daniel Veillard | 0a2a163 | 2001-05-11 14:18:03 +0000 | [diff] [blame] | 710 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 711 | if (xmlStrEqual(newtag, ctxt->nameTab[i])) break; |
Daniel Veillard | 0a2a163 | 2001-05-11 14:18:03 +0000 | [diff] [blame] | 712 | /* |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 713 | * A missplaced endtag can only close elements with lower |
Daniel Veillard | 0a2a163 | 2001-05-11 14:18:03 +0000 | [diff] [blame] | 714 | * or equal priority, so if we find an element with higher |
| 715 | * priority before we find an element with |
| 716 | * matching name, we just ignore this endtag |
| 717 | */ |
| 718 | if (htmlGetEndPriority (ctxt->nameTab[i]) > priority) return; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 719 | } |
| 720 | if (i < 0) return; |
| 721 | |
| 722 | while (!xmlStrEqual(newtag, ctxt->name)) { |
| 723 | info = htmlTagLookup(ctxt->name); |
| 724 | if ((info == NULL) || (info->endTag == 1)) { |
| 725 | #ifdef DEBUG |
| 726 | xmlGenericError(xmlGenericErrorContext,"htmlAutoCloseOnClose: %s closes %s\n", newtag, ctxt->name); |
| 727 | #endif |
Daniel Veillard | 56098d4 | 2001-04-24 12:51:09 +0000 | [diff] [blame] | 728 | } else if (info->endTag == 3) { |
| 729 | #ifdef DEBUG |
Daniel Veillard | f69bb4b | 2001-05-19 13:24:56 +0000 | [diff] [blame] | 730 | xmlGenericError(xmlGenericErrorContext,"End of tag %s: expecting %s\n", newtag, ctxt->name); |
William M. Brack | 1633d18 | 2001-10-05 15:41:19 +0000 | [diff] [blame] | 731 | |
Daniel Veillard | 56098d4 | 2001-04-24 12:51:09 +0000 | [diff] [blame] | 732 | #endif |
| 733 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 734 | ctxt->sax->error(ctxt->userData, |
| 735 | "Opening and ending tag mismatch: %s and %s\n", |
| 736 | newtag, ctxt->name); |
| 737 | ctxt->wellFormed = 0; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 738 | } |
| 739 | if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) |
| 740 | ctxt->sax->endElement(ctxt->userData, ctxt->name); |
| 741 | oldname = htmlnamePop(ctxt); |
| 742 | if (oldname != NULL) { |
| 743 | #ifdef DEBUG |
| 744 | xmlGenericError(xmlGenericErrorContext,"htmlAutoCloseOnClose: popped %s\n", oldname); |
| 745 | #endif |
| 746 | xmlFree(oldname); |
| 747 | } |
| 748 | } |
| 749 | } |
| 750 | |
| 751 | /** |
Daniel Veillard | a3bfca5 | 2001-04-12 15:42:58 +0000 | [diff] [blame] | 752 | * htmlAutoCloseOnEnd: |
| 753 | * @ctxt: an HTML parser context |
| 754 | * |
| 755 | * Close all remaining tags at the end of the stream |
| 756 | */ |
| 757 | static void |
| 758 | htmlAutoCloseOnEnd(htmlParserCtxtPtr ctxt) { |
| 759 | xmlChar *oldname; |
| 760 | int i; |
| 761 | |
| 762 | if (ctxt->nameNr == 0) |
| 763 | return; |
| 764 | #ifdef DEBUG |
| 765 | xmlGenericError(xmlGenericErrorContext,"Close of stack: %d elements\n", ctxt->nameNr); |
| 766 | #endif |
| 767 | |
| 768 | for (i = (ctxt->nameNr - 1);i >= 0;i--) { |
| 769 | #ifdef DEBUG |
| 770 | xmlGenericError(xmlGenericErrorContext,"%d : %s\n", i, ctxt->nameTab[i]); |
| 771 | #endif |
| 772 | if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) |
| 773 | ctxt->sax->endElement(ctxt->userData, ctxt->name); |
| 774 | oldname = htmlnamePop(ctxt); |
| 775 | if (oldname != NULL) { |
| 776 | #ifdef DEBUG |
| 777 | xmlGenericError(xmlGenericErrorContext,"htmlAutoCloseOnEnd: popped %s\n", oldname); |
| 778 | #endif |
| 779 | xmlFree(oldname); |
| 780 | } |
| 781 | } |
| 782 | } |
| 783 | |
| 784 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 785 | * htmlAutoClose: |
| 786 | * @ctxt: an HTML parser context |
| 787 | * @newtag: The new tag name or NULL |
| 788 | * |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 789 | * The HTML DTD allows a tag to implicitly close other tags. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 790 | * The list is kept in htmlStartClose array. This function is |
| 791 | * called when a new tag has been detected and generates the |
| 792 | * appropriates closes if possible/needed. |
| 793 | * If newtag is NULL this mean we are at the end of the resource |
| 794 | * and we should check |
| 795 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 796 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 797 | htmlAutoClose(htmlParserCtxtPtr ctxt, const xmlChar *newtag) { |
| 798 | xmlChar *oldname; |
| 799 | while ((newtag != NULL) && (ctxt->name != NULL) && |
| 800 | (htmlCheckAutoClose(newtag, ctxt->name))) { |
| 801 | #ifdef DEBUG |
| 802 | xmlGenericError(xmlGenericErrorContext,"htmlAutoClose: %s closes %s\n", newtag, ctxt->name); |
| 803 | #endif |
| 804 | if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) |
| 805 | ctxt->sax->endElement(ctxt->userData, ctxt->name); |
| 806 | oldname = htmlnamePop(ctxt); |
| 807 | if (oldname != NULL) { |
| 808 | #ifdef DEBUG |
| 809 | xmlGenericError(xmlGenericErrorContext,"htmlAutoClose: popped %s\n", oldname); |
| 810 | #endif |
| 811 | xmlFree(oldname); |
| 812 | } |
| 813 | } |
| 814 | if (newtag == NULL) { |
Daniel Veillard | a3bfca5 | 2001-04-12 15:42:58 +0000 | [diff] [blame] | 815 | htmlAutoCloseOnEnd(ctxt); |
| 816 | return; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 817 | } |
| 818 | while ((newtag == NULL) && (ctxt->name != NULL) && |
| 819 | ((xmlStrEqual(ctxt->name, BAD_CAST"head")) || |
| 820 | (xmlStrEqual(ctxt->name, BAD_CAST"body")) || |
| 821 | (xmlStrEqual(ctxt->name, BAD_CAST"html")))) { |
| 822 | #ifdef DEBUG |
| 823 | xmlGenericError(xmlGenericErrorContext,"htmlAutoClose: EOF closes %s\n", ctxt->name); |
| 824 | #endif |
| 825 | if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) |
| 826 | ctxt->sax->endElement(ctxt->userData, ctxt->name); |
| 827 | oldname = htmlnamePop(ctxt); |
| 828 | if (oldname != NULL) { |
| 829 | #ifdef DEBUG |
| 830 | xmlGenericError(xmlGenericErrorContext,"htmlAutoClose: popped %s\n", oldname); |
| 831 | #endif |
| 832 | xmlFree(oldname); |
| 833 | } |
| 834 | } |
| 835 | |
| 836 | } |
| 837 | |
| 838 | /** |
| 839 | * htmlAutoCloseTag: |
| 840 | * @doc: the HTML document |
| 841 | * @name: The tag name |
| 842 | * @elem: the HTML element |
| 843 | * |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 844 | * The HTML DTD allows a tag to implicitly close other tags. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 845 | * The list is kept in htmlStartClose array. This function checks |
| 846 | * if the element or one of it's children would autoclose the |
| 847 | * given tag. |
| 848 | * |
| 849 | * Returns 1 if autoclose, 0 otherwise |
| 850 | */ |
| 851 | int |
| 852 | htmlAutoCloseTag(htmlDocPtr doc, const xmlChar *name, htmlNodePtr elem) { |
| 853 | htmlNodePtr child; |
| 854 | |
| 855 | if (elem == NULL) return(1); |
| 856 | if (xmlStrEqual(name, elem->name)) return(0); |
| 857 | if (htmlCheckAutoClose(elem->name, name)) return(1); |
| 858 | child = elem->children; |
| 859 | while (child != NULL) { |
| 860 | if (htmlAutoCloseTag(doc, name, child)) return(1); |
| 861 | child = child->next; |
| 862 | } |
| 863 | return(0); |
| 864 | } |
| 865 | |
| 866 | /** |
| 867 | * htmlIsAutoClosed: |
| 868 | * @doc: the HTML document |
| 869 | * @elem: the HTML element |
| 870 | * |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 871 | * The HTML DTD allows a tag to implicitly close other tags. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 872 | * The list is kept in htmlStartClose array. This function checks |
| 873 | * if a tag is autoclosed by one of it's child |
| 874 | * |
| 875 | * Returns 1 if autoclosed, 0 otherwise |
| 876 | */ |
| 877 | int |
| 878 | htmlIsAutoClosed(htmlDocPtr doc, htmlNodePtr elem) { |
| 879 | htmlNodePtr child; |
| 880 | |
| 881 | if (elem == NULL) return(1); |
| 882 | child = elem->children; |
| 883 | while (child != NULL) { |
| 884 | if (htmlAutoCloseTag(doc, elem->name, child)) return(1); |
| 885 | child = child->next; |
| 886 | } |
| 887 | return(0); |
| 888 | } |
| 889 | |
| 890 | /** |
| 891 | * htmlCheckImplied: |
| 892 | * @ctxt: an HTML parser context |
| 893 | * @newtag: The new tag name |
| 894 | * |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 895 | * The HTML DTD allows a tag to exists only implicitly |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 896 | * called when a new tag has been detected and generates the |
| 897 | * appropriates implicit tags if missing |
| 898 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 899 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 900 | htmlCheckImplied(htmlParserCtxtPtr ctxt, const xmlChar *newtag) { |
| 901 | if (!htmlOmittedDefaultValue) |
| 902 | return; |
| 903 | if (xmlStrEqual(newtag, BAD_CAST"html")) |
| 904 | return; |
| 905 | if (ctxt->nameNr <= 0) { |
| 906 | #ifdef DEBUG |
| 907 | xmlGenericError(xmlGenericErrorContext,"Implied element html: pushed html\n"); |
| 908 | #endif |
| 909 | htmlnamePush(ctxt, xmlStrdup(BAD_CAST"html")); |
| 910 | if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) |
| 911 | ctxt->sax->startElement(ctxt->userData, BAD_CAST"html", NULL); |
| 912 | } |
| 913 | if ((xmlStrEqual(newtag, BAD_CAST"body")) || (xmlStrEqual(newtag, BAD_CAST"head"))) |
| 914 | return; |
| 915 | if ((ctxt->nameNr <= 1) && |
| 916 | ((xmlStrEqual(newtag, BAD_CAST"script")) || |
| 917 | (xmlStrEqual(newtag, BAD_CAST"style")) || |
| 918 | (xmlStrEqual(newtag, BAD_CAST"meta")) || |
| 919 | (xmlStrEqual(newtag, BAD_CAST"link")) || |
| 920 | (xmlStrEqual(newtag, BAD_CAST"title")) || |
| 921 | (xmlStrEqual(newtag, BAD_CAST"base")))) { |
| 922 | /* |
| 923 | * dropped OBJECT ... i you put it first BODY will be |
| 924 | * assumed ! |
| 925 | */ |
| 926 | #ifdef DEBUG |
| 927 | xmlGenericError(xmlGenericErrorContext,"Implied element head: pushed head\n"); |
| 928 | #endif |
| 929 | htmlnamePush(ctxt, xmlStrdup(BAD_CAST"head")); |
| 930 | if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) |
| 931 | ctxt->sax->startElement(ctxt->userData, BAD_CAST"head", NULL); |
| 932 | } else if ((!xmlStrEqual(newtag, BAD_CAST"noframes")) && |
| 933 | (!xmlStrEqual(newtag, BAD_CAST"frame")) && |
| 934 | (!xmlStrEqual(newtag, BAD_CAST"frameset"))) { |
| 935 | int i; |
| 936 | for (i = 0;i < ctxt->nameNr;i++) { |
| 937 | if (xmlStrEqual(ctxt->nameTab[i], BAD_CAST"body")) { |
| 938 | return; |
| 939 | } |
| 940 | if (xmlStrEqual(ctxt->nameTab[i], BAD_CAST"head")) { |
| 941 | return; |
| 942 | } |
| 943 | } |
| 944 | |
| 945 | #ifdef DEBUG |
| 946 | xmlGenericError(xmlGenericErrorContext,"Implied element body: pushed body\n"); |
| 947 | #endif |
| 948 | htmlnamePush(ctxt, xmlStrdup(BAD_CAST"body")); |
| 949 | if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) |
| 950 | ctxt->sax->startElement(ctxt->userData, BAD_CAST"body", NULL); |
| 951 | } |
| 952 | } |
| 953 | |
| 954 | /** |
| 955 | * htmlCheckParagraph |
| 956 | * @ctxt: an HTML parser context |
| 957 | * |
| 958 | * Check whether a p element need to be implied before inserting |
| 959 | * characters in the current element. |
| 960 | * |
| 961 | * Returns 1 if a paragraph has been inserted, 0 if not and -1 |
| 962 | * in case of error. |
| 963 | */ |
| 964 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 965 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 966 | htmlCheckParagraph(htmlParserCtxtPtr ctxt) { |
| 967 | const xmlChar *tag; |
| 968 | int i; |
| 969 | |
| 970 | if (ctxt == NULL) |
| 971 | return(-1); |
| 972 | tag = ctxt->name; |
| 973 | if (tag == NULL) { |
| 974 | htmlAutoClose(ctxt, BAD_CAST"p"); |
| 975 | htmlCheckImplied(ctxt, BAD_CAST"p"); |
| 976 | htmlnamePush(ctxt, xmlStrdup(BAD_CAST"p")); |
| 977 | if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) |
| 978 | ctxt->sax->startElement(ctxt->userData, BAD_CAST"p", NULL); |
| 979 | return(1); |
| 980 | } |
| 981 | if (!htmlOmittedDefaultValue) |
| 982 | return(0); |
| 983 | for (i = 0; htmlNoContentElements[i] != NULL; i++) { |
| 984 | if (xmlStrEqual(tag, BAD_CAST htmlNoContentElements[i])) { |
| 985 | #ifdef DEBUG |
| 986 | xmlGenericError(xmlGenericErrorContext,"Implied element paragraph\n"); |
| 987 | #endif |
| 988 | htmlAutoClose(ctxt, BAD_CAST"p"); |
| 989 | htmlCheckImplied(ctxt, BAD_CAST"p"); |
| 990 | htmlnamePush(ctxt, xmlStrdup(BAD_CAST"p")); |
| 991 | if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) |
| 992 | ctxt->sax->startElement(ctxt->userData, BAD_CAST"p", NULL); |
| 993 | return(1); |
| 994 | } |
| 995 | } |
| 996 | return(0); |
| 997 | } |
| 998 | |
| 999 | /** |
| 1000 | * htmlIsScriptAttribute: |
| 1001 | * @name: an attribute name |
| 1002 | * |
| 1003 | * Check if an attribute is of content type Script |
| 1004 | * |
| 1005 | * Returns 1 is the attribute is a script 0 otherwise |
| 1006 | */ |
| 1007 | int |
| 1008 | htmlIsScriptAttribute(const xmlChar *name) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1009 | unsigned int i; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1010 | |
| 1011 | if (name == NULL) |
| 1012 | return(0); |
| 1013 | /* |
| 1014 | * all script attributes start with 'on' |
| 1015 | */ |
| 1016 | if ((name[0] != 'o') || (name[1] != 'n')) |
| 1017 | return(0); |
| 1018 | for (i = 0; |
| 1019 | i < sizeof(htmlScriptAttributes)/sizeof(htmlScriptAttributes[0]); |
| 1020 | i++) { |
| 1021 | if (xmlStrEqual(name, (const xmlChar *) htmlScriptAttributes[i])) |
| 1022 | return(1); |
| 1023 | } |
| 1024 | return(0); |
| 1025 | } |
| 1026 | |
| 1027 | /************************************************************************ |
| 1028 | * * |
| 1029 | * The list of HTML predefined entities * |
| 1030 | * * |
| 1031 | ************************************************************************/ |
| 1032 | |
| 1033 | |
Daniel Veillard | 2209073 | 2001-07-16 00:06:07 +0000 | [diff] [blame] | 1034 | static const htmlEntityDesc html40EntitiesTable[] = { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1035 | /* |
| 1036 | * the 4 absolute ones, plus apostrophe. |
| 1037 | */ |
| 1038 | { 34, "quot", "quotation mark = APL quote, U+0022 ISOnum" }, |
| 1039 | { 38, "amp", "ampersand, U+0026 ISOnum" }, |
| 1040 | { 39, "apos", "single quote" }, |
| 1041 | { 60, "lt", "less-than sign, U+003C ISOnum" }, |
| 1042 | { 62, "gt", "greater-than sign, U+003E ISOnum" }, |
| 1043 | |
| 1044 | /* |
| 1045 | * A bunch still in the 128-255 range |
| 1046 | * Replacing them depend really on the charset used. |
| 1047 | */ |
| 1048 | { 160, "nbsp", "no-break space = non-breaking space, U+00A0 ISOnum" }, |
| 1049 | { 161, "iexcl","inverted exclamation mark, U+00A1 ISOnum" }, |
| 1050 | { 162, "cent", "cent sign, U+00A2 ISOnum" }, |
| 1051 | { 163, "pound","pound sign, U+00A3 ISOnum" }, |
| 1052 | { 164, "curren","currency sign, U+00A4 ISOnum" }, |
| 1053 | { 165, "yen", "yen sign = yuan sign, U+00A5 ISOnum" }, |
| 1054 | { 166, "brvbar","broken bar = broken vertical bar, U+00A6 ISOnum" }, |
| 1055 | { 167, "sect", "section sign, U+00A7 ISOnum" }, |
| 1056 | { 168, "uml", "diaeresis = spacing diaeresis, U+00A8 ISOdia" }, |
| 1057 | { 169, "copy", "copyright sign, U+00A9 ISOnum" }, |
| 1058 | { 170, "ordf", "feminine ordinal indicator, U+00AA ISOnum" }, |
| 1059 | { 171, "laquo","left-pointing double angle quotation mark = left pointing guillemet, U+00AB ISOnum" }, |
| 1060 | { 172, "not", "not sign, U+00AC ISOnum" }, |
| 1061 | { 173, "shy", "soft hyphen = discretionary hyphen, U+00AD ISOnum" }, |
| 1062 | { 174, "reg", "registered sign = registered trade mark sign, U+00AE ISOnum" }, |
| 1063 | { 175, "macr", "macron = spacing macron = overline = APL overbar, U+00AF ISOdia" }, |
| 1064 | { 176, "deg", "degree sign, U+00B0 ISOnum" }, |
| 1065 | { 177, "plusmn","plus-minus sign = plus-or-minus sign, U+00B1 ISOnum" }, |
| 1066 | { 178, "sup2", "superscript two = superscript digit two = squared, U+00B2 ISOnum" }, |
| 1067 | { 179, "sup3", "superscript three = superscript digit three = cubed, U+00B3 ISOnum" }, |
| 1068 | { 180, "acute","acute accent = spacing acute, U+00B4 ISOdia" }, |
| 1069 | { 181, "micro","micro sign, U+00B5 ISOnum" }, |
| 1070 | { 182, "para", "pilcrow sign = paragraph sign, U+00B6 ISOnum" }, |
| 1071 | { 183, "middot","middle dot = Georgian comma Greek middle dot, U+00B7 ISOnum" }, |
| 1072 | { 184, "cedil","cedilla = spacing cedilla, U+00B8 ISOdia" }, |
| 1073 | { 185, "sup1", "superscript one = superscript digit one, U+00B9 ISOnum" }, |
| 1074 | { 186, "ordm", "masculine ordinal indicator, U+00BA ISOnum" }, |
| 1075 | { 187, "raquo","right-pointing double angle quotation mark right pointing guillemet, U+00BB ISOnum" }, |
| 1076 | { 188, "frac14","vulgar fraction one quarter = fraction one quarter, U+00BC ISOnum" }, |
| 1077 | { 189, "frac12","vulgar fraction one half = fraction one half, U+00BD ISOnum" }, |
| 1078 | { 190, "frac34","vulgar fraction three quarters = fraction three quarters, U+00BE ISOnum" }, |
| 1079 | { 191, "iquest","inverted question mark = turned question mark, U+00BF ISOnum" }, |
| 1080 | { 192, "Agrave","latin capital letter A with grave = latin capital letter A grave, U+00C0 ISOlat1" }, |
| 1081 | { 193, "Aacute","latin capital letter A with acute, U+00C1 ISOlat1" }, |
| 1082 | { 194, "Acirc","latin capital letter A with circumflex, U+00C2 ISOlat1" }, |
| 1083 | { 195, "Atilde","latin capital letter A with tilde, U+00C3 ISOlat1" }, |
| 1084 | { 196, "Auml", "latin capital letter A with diaeresis, U+00C4 ISOlat1" }, |
| 1085 | { 197, "Aring","latin capital letter A with ring above = latin capital letter A ring, U+00C5 ISOlat1" }, |
| 1086 | { 198, "AElig","latin capital letter AE = latin capital ligature AE, U+00C6 ISOlat1" }, |
| 1087 | { 199, "Ccedil","latin capital letter C with cedilla, U+00C7 ISOlat1" }, |
| 1088 | { 200, "Egrave","latin capital letter E with grave, U+00C8 ISOlat1" }, |
| 1089 | { 201, "Eacute","latin capital letter E with acute, U+00C9 ISOlat1" }, |
| 1090 | { 202, "Ecirc","latin capital letter E with circumflex, U+00CA ISOlat1" }, |
| 1091 | { 203, "Euml", "latin capital letter E with diaeresis, U+00CB ISOlat1" }, |
| 1092 | { 204, "Igrave","latin capital letter I with grave, U+00CC ISOlat1" }, |
| 1093 | { 205, "Iacute","latin capital letter I with acute, U+00CD ISOlat1" }, |
| 1094 | { 206, "Icirc","latin capital letter I with circumflex, U+00CE ISOlat1" }, |
| 1095 | { 207, "Iuml", "latin capital letter I with diaeresis, U+00CF ISOlat1" }, |
| 1096 | { 208, "ETH", "latin capital letter ETH, U+00D0 ISOlat1" }, |
| 1097 | { 209, "Ntilde","latin capital letter N with tilde, U+00D1 ISOlat1" }, |
| 1098 | { 210, "Ograve","latin capital letter O with grave, U+00D2 ISOlat1" }, |
| 1099 | { 211, "Oacute","latin capital letter O with acute, U+00D3 ISOlat1" }, |
| 1100 | { 212, "Ocirc","latin capital letter O with circumflex, U+00D4 ISOlat1" }, |
| 1101 | { 213, "Otilde","latin capital letter O with tilde, U+00D5 ISOlat1" }, |
| 1102 | { 214, "Ouml", "latin capital letter O with diaeresis, U+00D6 ISOlat1" }, |
| 1103 | { 215, "times","multiplication sign, U+00D7 ISOnum" }, |
| 1104 | { 216, "Oslash","latin capital letter O with stroke latin capital letter O slash, U+00D8 ISOlat1" }, |
| 1105 | { 217, "Ugrave","latin capital letter U with grave, U+00D9 ISOlat1" }, |
| 1106 | { 218, "Uacute","latin capital letter U with acute, U+00DA ISOlat1" }, |
| 1107 | { 219, "Ucirc","latin capital letter U with circumflex, U+00DB ISOlat1" }, |
| 1108 | { 220, "Uuml", "latin capital letter U with diaeresis, U+00DC ISOlat1" }, |
| 1109 | { 221, "Yacute","latin capital letter Y with acute, U+00DD ISOlat1" }, |
| 1110 | { 222, "THORN","latin capital letter THORN, U+00DE ISOlat1" }, |
| 1111 | { 223, "szlig","latin small letter sharp s = ess-zed, U+00DF ISOlat1" }, |
| 1112 | { 224, "agrave","latin small letter a with grave = latin small letter a grave, U+00E0 ISOlat1" }, |
| 1113 | { 225, "aacute","latin small letter a with acute, U+00E1 ISOlat1" }, |
| 1114 | { 226, "acirc","latin small letter a with circumflex, U+00E2 ISOlat1" }, |
| 1115 | { 227, "atilde","latin small letter a with tilde, U+00E3 ISOlat1" }, |
| 1116 | { 228, "auml", "latin small letter a with diaeresis, U+00E4 ISOlat1" }, |
| 1117 | { 229, "aring","latin small letter a with ring above = latin small letter a ring, U+00E5 ISOlat1" }, |
| 1118 | { 230, "aelig","latin small letter ae = latin small ligature ae, U+00E6 ISOlat1" }, |
| 1119 | { 231, "ccedil","latin small letter c with cedilla, U+00E7 ISOlat1" }, |
| 1120 | { 232, "egrave","latin small letter e with grave, U+00E8 ISOlat1" }, |
| 1121 | { 233, "eacute","latin small letter e with acute, U+00E9 ISOlat1" }, |
| 1122 | { 234, "ecirc","latin small letter e with circumflex, U+00EA ISOlat1" }, |
| 1123 | { 235, "euml", "latin small letter e with diaeresis, U+00EB ISOlat1" }, |
| 1124 | { 236, "igrave","latin small letter i with grave, U+00EC ISOlat1" }, |
| 1125 | { 237, "iacute","latin small letter i with acute, U+00ED ISOlat1" }, |
| 1126 | { 238, "icirc","latin small letter i with circumflex, U+00EE ISOlat1" }, |
| 1127 | { 239, "iuml", "latin small letter i with diaeresis, U+00EF ISOlat1" }, |
| 1128 | { 240, "eth", "latin small letter eth, U+00F0 ISOlat1" }, |
| 1129 | { 241, "ntilde","latin small letter n with tilde, U+00F1 ISOlat1" }, |
| 1130 | { 242, "ograve","latin small letter o with grave, U+00F2 ISOlat1" }, |
| 1131 | { 243, "oacute","latin small letter o with acute, U+00F3 ISOlat1" }, |
| 1132 | { 244, "ocirc","latin small letter o with circumflex, U+00F4 ISOlat1" }, |
| 1133 | { 245, "otilde","latin small letter o with tilde, U+00F5 ISOlat1" }, |
| 1134 | { 246, "ouml", "latin small letter o with diaeresis, U+00F6 ISOlat1" }, |
| 1135 | { 247, "divide","division sign, U+00F7 ISOnum" }, |
| 1136 | { 248, "oslash","latin small letter o with stroke, = latin small letter o slash, U+00F8 ISOlat1" }, |
| 1137 | { 249, "ugrave","latin small letter u with grave, U+00F9 ISOlat1" }, |
| 1138 | { 250, "uacute","latin small letter u with acute, U+00FA ISOlat1" }, |
| 1139 | { 251, "ucirc","latin small letter u with circumflex, U+00FB ISOlat1" }, |
| 1140 | { 252, "uuml", "latin small letter u with diaeresis, U+00FC ISOlat1" }, |
| 1141 | { 253, "yacute","latin small letter y with acute, U+00FD ISOlat1" }, |
| 1142 | { 254, "thorn","latin small letter thorn with, U+00FE ISOlat1" }, |
| 1143 | { 255, "yuml", "latin small letter y with diaeresis, U+00FF ISOlat1" }, |
| 1144 | |
| 1145 | { 338, "OElig","latin capital ligature OE, U+0152 ISOlat2" }, |
| 1146 | { 339, "oelig","latin small ligature oe, U+0153 ISOlat2" }, |
| 1147 | { 352, "Scaron","latin capital letter S with caron, U+0160 ISOlat2" }, |
| 1148 | { 353, "scaron","latin small letter s with caron, U+0161 ISOlat2" }, |
| 1149 | { 376, "Yuml", "latin capital letter Y with diaeresis, U+0178 ISOlat2" }, |
| 1150 | |
| 1151 | /* |
| 1152 | * Anything below should really be kept as entities references |
| 1153 | */ |
| 1154 | { 402, "fnof", "latin small f with hook = function = florin, U+0192 ISOtech" }, |
| 1155 | |
| 1156 | { 710, "circ", "modifier letter circumflex accent, U+02C6 ISOpub" }, |
| 1157 | { 732, "tilde","small tilde, U+02DC ISOdia" }, |
| 1158 | |
| 1159 | { 913, "Alpha","greek capital letter alpha, U+0391" }, |
| 1160 | { 914, "Beta", "greek capital letter beta, U+0392" }, |
| 1161 | { 915, "Gamma","greek capital letter gamma, U+0393 ISOgrk3" }, |
| 1162 | { 916, "Delta","greek capital letter delta, U+0394 ISOgrk3" }, |
| 1163 | { 917, "Epsilon","greek capital letter epsilon, U+0395" }, |
| 1164 | { 918, "Zeta", "greek capital letter zeta, U+0396" }, |
| 1165 | { 919, "Eta", "greek capital letter eta, U+0397" }, |
| 1166 | { 920, "Theta","greek capital letter theta, U+0398 ISOgrk3" }, |
| 1167 | { 921, "Iota", "greek capital letter iota, U+0399" }, |
| 1168 | { 922, "Kappa","greek capital letter kappa, U+039A" }, |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1169 | { 923, "Lambda", "greek capital letter lambda, U+039B ISOgrk3" }, |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1170 | { 924, "Mu", "greek capital letter mu, U+039C" }, |
| 1171 | { 925, "Nu", "greek capital letter nu, U+039D" }, |
| 1172 | { 926, "Xi", "greek capital letter xi, U+039E ISOgrk3" }, |
| 1173 | { 927, "Omicron","greek capital letter omicron, U+039F" }, |
| 1174 | { 928, "Pi", "greek capital letter pi, U+03A0 ISOgrk3" }, |
| 1175 | { 929, "Rho", "greek capital letter rho, U+03A1" }, |
| 1176 | { 931, "Sigma","greek capital letter sigma, U+03A3 ISOgrk3" }, |
| 1177 | { 932, "Tau", "greek capital letter tau, U+03A4" }, |
| 1178 | { 933, "Upsilon","greek capital letter upsilon, U+03A5 ISOgrk3" }, |
| 1179 | { 934, "Phi", "greek capital letter phi, U+03A6 ISOgrk3" }, |
| 1180 | { 935, "Chi", "greek capital letter chi, U+03A7" }, |
| 1181 | { 936, "Psi", "greek capital letter psi, U+03A8 ISOgrk3" }, |
| 1182 | { 937, "Omega","greek capital letter omega, U+03A9 ISOgrk3" }, |
| 1183 | |
| 1184 | { 945, "alpha","greek small letter alpha, U+03B1 ISOgrk3" }, |
| 1185 | { 946, "beta", "greek small letter beta, U+03B2 ISOgrk3" }, |
| 1186 | { 947, "gamma","greek small letter gamma, U+03B3 ISOgrk3" }, |
| 1187 | { 948, "delta","greek small letter delta, U+03B4 ISOgrk3" }, |
| 1188 | { 949, "epsilon","greek small letter epsilon, U+03B5 ISOgrk3" }, |
| 1189 | { 950, "zeta", "greek small letter zeta, U+03B6 ISOgrk3" }, |
| 1190 | { 951, "eta", "greek small letter eta, U+03B7 ISOgrk3" }, |
| 1191 | { 952, "theta","greek small letter theta, U+03B8 ISOgrk3" }, |
| 1192 | { 953, "iota", "greek small letter iota, U+03B9 ISOgrk3" }, |
| 1193 | { 954, "kappa","greek small letter kappa, U+03BA ISOgrk3" }, |
| 1194 | { 955, "lambda","greek small letter lambda, U+03BB ISOgrk3" }, |
| 1195 | { 956, "mu", "greek small letter mu, U+03BC ISOgrk3" }, |
| 1196 | { 957, "nu", "greek small letter nu, U+03BD ISOgrk3" }, |
| 1197 | { 958, "xi", "greek small letter xi, U+03BE ISOgrk3" }, |
| 1198 | { 959, "omicron","greek small letter omicron, U+03BF NEW" }, |
| 1199 | { 960, "pi", "greek small letter pi, U+03C0 ISOgrk3" }, |
| 1200 | { 961, "rho", "greek small letter rho, U+03C1 ISOgrk3" }, |
| 1201 | { 962, "sigmaf","greek small letter final sigma, U+03C2 ISOgrk3" }, |
| 1202 | { 963, "sigma","greek small letter sigma, U+03C3 ISOgrk3" }, |
| 1203 | { 964, "tau", "greek small letter tau, U+03C4 ISOgrk3" }, |
| 1204 | { 965, "upsilon","greek small letter upsilon, U+03C5 ISOgrk3" }, |
| 1205 | { 966, "phi", "greek small letter phi, U+03C6 ISOgrk3" }, |
| 1206 | { 967, "chi", "greek small letter chi, U+03C7 ISOgrk3" }, |
| 1207 | { 968, "psi", "greek small letter psi, U+03C8 ISOgrk3" }, |
| 1208 | { 969, "omega","greek small letter omega, U+03C9 ISOgrk3" }, |
| 1209 | { 977, "thetasym","greek small letter theta symbol, U+03D1 NEW" }, |
| 1210 | { 978, "upsih","greek upsilon with hook symbol, U+03D2 NEW" }, |
| 1211 | { 982, "piv", "greek pi symbol, U+03D6 ISOgrk3" }, |
| 1212 | |
| 1213 | { 8194, "ensp", "en space, U+2002 ISOpub" }, |
| 1214 | { 8195, "emsp", "em space, U+2003 ISOpub" }, |
| 1215 | { 8201, "thinsp","thin space, U+2009 ISOpub" }, |
| 1216 | { 8204, "zwnj", "zero width non-joiner, U+200C NEW RFC 2070" }, |
| 1217 | { 8205, "zwj", "zero width joiner, U+200D NEW RFC 2070" }, |
| 1218 | { 8206, "lrm", "left-to-right mark, U+200E NEW RFC 2070" }, |
| 1219 | { 8207, "rlm", "right-to-left mark, U+200F NEW RFC 2070" }, |
| 1220 | { 8211, "ndash","en dash, U+2013 ISOpub" }, |
| 1221 | { 8212, "mdash","em dash, U+2014 ISOpub" }, |
| 1222 | { 8216, "lsquo","left single quotation mark, U+2018 ISOnum" }, |
| 1223 | { 8217, "rsquo","right single quotation mark, U+2019 ISOnum" }, |
| 1224 | { 8218, "sbquo","single low-9 quotation mark, U+201A NEW" }, |
| 1225 | { 8220, "ldquo","left double quotation mark, U+201C ISOnum" }, |
| 1226 | { 8221, "rdquo","right double quotation mark, U+201D ISOnum" }, |
| 1227 | { 8222, "bdquo","double low-9 quotation mark, U+201E NEW" }, |
| 1228 | { 8224, "dagger","dagger, U+2020 ISOpub" }, |
| 1229 | { 8225, "Dagger","double dagger, U+2021 ISOpub" }, |
| 1230 | |
| 1231 | { 8226, "bull", "bullet = black small circle, U+2022 ISOpub" }, |
| 1232 | { 8230, "hellip","horizontal ellipsis = three dot leader, U+2026 ISOpub" }, |
| 1233 | |
| 1234 | { 8240, "permil","per mille sign, U+2030 ISOtech" }, |
| 1235 | |
| 1236 | { 8242, "prime","prime = minutes = feet, U+2032 ISOtech" }, |
| 1237 | { 8243, "Prime","double prime = seconds = inches, U+2033 ISOtech" }, |
| 1238 | |
| 1239 | { 8249, "lsaquo","single left-pointing angle quotation mark, U+2039 ISO proposed" }, |
| 1240 | { 8250, "rsaquo","single right-pointing angle quotation mark, U+203A ISO proposed" }, |
| 1241 | |
| 1242 | { 8254, "oline","overline = spacing overscore, U+203E NEW" }, |
| 1243 | { 8260, "frasl","fraction slash, U+2044 NEW" }, |
| 1244 | |
| 1245 | { 8364, "euro", "euro sign, U+20AC NEW" }, |
| 1246 | |
| 1247 | { 8465, "image","blackletter capital I = imaginary part, U+2111 ISOamso" }, |
| 1248 | { 8472, "weierp","script capital P = power set = Weierstrass p, U+2118 ISOamso" }, |
| 1249 | { 8476, "real", "blackletter capital R = real part symbol, U+211C ISOamso" }, |
| 1250 | { 8482, "trade","trade mark sign, U+2122 ISOnum" }, |
| 1251 | { 8501, "alefsym","alef symbol = first transfinite cardinal, U+2135 NEW" }, |
| 1252 | { 8592, "larr", "leftwards arrow, U+2190 ISOnum" }, |
| 1253 | { 8593, "uarr", "upwards arrow, U+2191 ISOnum" }, |
| 1254 | { 8594, "rarr", "rightwards arrow, U+2192 ISOnum" }, |
| 1255 | { 8595, "darr", "downwards arrow, U+2193 ISOnum" }, |
| 1256 | { 8596, "harr", "left right arrow, U+2194 ISOamsa" }, |
| 1257 | { 8629, "crarr","downwards arrow with corner leftwards = carriage return, U+21B5 NEW" }, |
| 1258 | { 8656, "lArr", "leftwards double arrow, U+21D0 ISOtech" }, |
| 1259 | { 8657, "uArr", "upwards double arrow, U+21D1 ISOamsa" }, |
| 1260 | { 8658, "rArr", "rightwards double arrow, U+21D2 ISOtech" }, |
| 1261 | { 8659, "dArr", "downwards double arrow, U+21D3 ISOamsa" }, |
| 1262 | { 8660, "hArr", "left right double arrow, U+21D4 ISOamsa" }, |
| 1263 | |
| 1264 | { 8704, "forall","for all, U+2200 ISOtech" }, |
| 1265 | { 8706, "part", "partial differential, U+2202 ISOtech" }, |
| 1266 | { 8707, "exist","there exists, U+2203 ISOtech" }, |
| 1267 | { 8709, "empty","empty set = null set = diameter, U+2205 ISOamso" }, |
| 1268 | { 8711, "nabla","nabla = backward difference, U+2207 ISOtech" }, |
| 1269 | { 8712, "isin", "element of, U+2208 ISOtech" }, |
| 1270 | { 8713, "notin","not an element of, U+2209 ISOtech" }, |
| 1271 | { 8715, "ni", "contains as member, U+220B ISOtech" }, |
| 1272 | { 8719, "prod", "n-ary product = product sign, U+220F ISOamsb" }, |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 1273 | { 8721, "sum", "n-ary summation, U+2211 ISOamsb" }, |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1274 | { 8722, "minus","minus sign, U+2212 ISOtech" }, |
| 1275 | { 8727, "lowast","asterisk operator, U+2217 ISOtech" }, |
| 1276 | { 8730, "radic","square root = radical sign, U+221A ISOtech" }, |
| 1277 | { 8733, "prop", "proportional to, U+221D ISOtech" }, |
| 1278 | { 8734, "infin","infinity, U+221E ISOtech" }, |
| 1279 | { 8736, "ang", "angle, U+2220 ISOamso" }, |
| 1280 | { 8743, "and", "logical and = wedge, U+2227 ISOtech" }, |
| 1281 | { 8744, "or", "logical or = vee, U+2228 ISOtech" }, |
| 1282 | { 8745, "cap", "intersection = cap, U+2229 ISOtech" }, |
| 1283 | { 8746, "cup", "union = cup, U+222A ISOtech" }, |
| 1284 | { 8747, "int", "integral, U+222B ISOtech" }, |
| 1285 | { 8756, "there4","therefore, U+2234 ISOtech" }, |
| 1286 | { 8764, "sim", "tilde operator = varies with = similar to, U+223C ISOtech" }, |
| 1287 | { 8773, "cong", "approximately equal to, U+2245 ISOtech" }, |
| 1288 | { 8776, "asymp","almost equal to = asymptotic to, U+2248 ISOamsr" }, |
| 1289 | { 8800, "ne", "not equal to, U+2260 ISOtech" }, |
| 1290 | { 8801, "equiv","identical to, U+2261 ISOtech" }, |
| 1291 | { 8804, "le", "less-than or equal to, U+2264 ISOtech" }, |
| 1292 | { 8805, "ge", "greater-than or equal to, U+2265 ISOtech" }, |
| 1293 | { 8834, "sub", "subset of, U+2282 ISOtech" }, |
| 1294 | { 8835, "sup", "superset of, U+2283 ISOtech" }, |
| 1295 | { 8836, "nsub", "not a subset of, U+2284 ISOamsn" }, |
| 1296 | { 8838, "sube", "subset of or equal to, U+2286 ISOtech" }, |
| 1297 | { 8839, "supe", "superset of or equal to, U+2287 ISOtech" }, |
| 1298 | { 8853, "oplus","circled plus = direct sum, U+2295 ISOamsb" }, |
| 1299 | { 8855, "otimes","circled times = vector product, U+2297 ISOamsb" }, |
| 1300 | { 8869, "perp", "up tack = orthogonal to = perpendicular, U+22A5 ISOtech" }, |
| 1301 | { 8901, "sdot", "dot operator, U+22C5 ISOamsb" }, |
| 1302 | { 8968, "lceil","left ceiling = apl upstile, U+2308 ISOamsc" }, |
| 1303 | { 8969, "rceil","right ceiling, U+2309 ISOamsc" }, |
| 1304 | { 8970, "lfloor","left floor = apl downstile, U+230A ISOamsc" }, |
| 1305 | { 8971, "rfloor","right floor, U+230B ISOamsc" }, |
| 1306 | { 9001, "lang", "left-pointing angle bracket = bra, U+2329 ISOtech" }, |
| 1307 | { 9002, "rang", "right-pointing angle bracket = ket, U+232A ISOtech" }, |
| 1308 | { 9674, "loz", "lozenge, U+25CA ISOpub" }, |
| 1309 | |
| 1310 | { 9824, "spades","black spade suit, U+2660 ISOpub" }, |
| 1311 | { 9827, "clubs","black club suit = shamrock, U+2663 ISOpub" }, |
| 1312 | { 9829, "hearts","black heart suit = valentine, U+2665 ISOpub" }, |
| 1313 | { 9830, "diams","black diamond suit, U+2666 ISOpub" }, |
| 1314 | |
| 1315 | }; |
| 1316 | |
| 1317 | /************************************************************************ |
| 1318 | * * |
| 1319 | * Commodity functions to handle entities * |
| 1320 | * * |
| 1321 | ************************************************************************/ |
| 1322 | |
| 1323 | /* |
| 1324 | * Macro used to grow the current buffer. |
| 1325 | */ |
| 1326 | #define growBuffer(buffer) { \ |
| 1327 | buffer##_size *= 2; \ |
| 1328 | buffer = (xmlChar *) xmlRealloc(buffer, buffer##_size * sizeof(xmlChar)); \ |
| 1329 | if (buffer == NULL) { \ |
| 1330 | perror("realloc failed"); \ |
| 1331 | return(NULL); \ |
| 1332 | } \ |
| 1333 | } |
| 1334 | |
| 1335 | /** |
| 1336 | * htmlEntityLookup: |
| 1337 | * @name: the entity name |
| 1338 | * |
| 1339 | * Lookup the given entity in EntitiesTable |
| 1340 | * |
| 1341 | * TODO: the linear scan is really ugly, an hash table is really needed. |
| 1342 | * |
| 1343 | * Returns the associated htmlEntityDescPtr if found, NULL otherwise. |
| 1344 | */ |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 1345 | const htmlEntityDesc * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1346 | htmlEntityLookup(const xmlChar *name) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1347 | unsigned int i; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1348 | |
| 1349 | for (i = 0;i < (sizeof(html40EntitiesTable)/ |
| 1350 | sizeof(html40EntitiesTable[0]));i++) { |
| 1351 | if (xmlStrEqual(name, BAD_CAST html40EntitiesTable[i].name)) { |
| 1352 | #ifdef DEBUG |
| 1353 | xmlGenericError(xmlGenericErrorContext,"Found entity %s\n", name); |
| 1354 | #endif |
Daniel Veillard | 2209073 | 2001-07-16 00:06:07 +0000 | [diff] [blame] | 1355 | return((const htmlEntityDescPtr) &html40EntitiesTable[i]); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1356 | } |
| 1357 | } |
| 1358 | return(NULL); |
| 1359 | } |
| 1360 | |
| 1361 | /** |
| 1362 | * htmlEntityValueLookup: |
| 1363 | * @value: the entity's unicode value |
| 1364 | * |
| 1365 | * Lookup the given entity in EntitiesTable |
| 1366 | * |
| 1367 | * TODO: the linear scan is really ugly, an hash table is really needed. |
| 1368 | * |
| 1369 | * Returns the associated htmlEntityDescPtr if found, NULL otherwise. |
| 1370 | */ |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 1371 | const htmlEntityDesc * |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1372 | htmlEntityValueLookup(unsigned int value) { |
| 1373 | unsigned int i; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1374 | #ifdef DEBUG |
Daniel Veillard | f69bb4b | 2001-05-19 13:24:56 +0000 | [diff] [blame] | 1375 | unsigned int lv = 0; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1376 | #endif |
| 1377 | |
| 1378 | for (i = 0;i < (sizeof(html40EntitiesTable)/ |
| 1379 | sizeof(html40EntitiesTable[0]));i++) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1380 | if (html40EntitiesTable[i].value >= value) { |
| 1381 | if (html40EntitiesTable[i].value > value) |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1382 | break; |
| 1383 | #ifdef DEBUG |
| 1384 | xmlGenericError(xmlGenericErrorContext,"Found entity %s\n", html40EntitiesTable[i].name); |
| 1385 | #endif |
Daniel Veillard | 2209073 | 2001-07-16 00:06:07 +0000 | [diff] [blame] | 1386 | return((const htmlEntityDescPtr) &html40EntitiesTable[i]); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1387 | } |
| 1388 | #ifdef DEBUG |
| 1389 | if (lv > html40EntitiesTable[i].value) { |
| 1390 | xmlGenericError(xmlGenericErrorContext, |
| 1391 | "html40EntitiesTable[] is not sorted (%d > %d)!\n", |
| 1392 | lv, html40EntitiesTable[i].value); |
| 1393 | } |
| 1394 | lv = html40EntitiesTable[i].value; |
| 1395 | #endif |
| 1396 | } |
| 1397 | return(NULL); |
| 1398 | } |
| 1399 | |
| 1400 | /** |
| 1401 | * UTF8ToHtml: |
| 1402 | * @out: a pointer to an array of bytes to store the result |
| 1403 | * @outlen: the length of @out |
| 1404 | * @in: a pointer to an array of UTF-8 chars |
| 1405 | * @inlen: the length of @in |
| 1406 | * |
| 1407 | * Take a block of UTF-8 chars in and try to convert it to an ASCII |
| 1408 | * plus HTML entities block of chars out. |
| 1409 | * |
| 1410 | * Returns 0 if success, -2 if the transcoding fails, or -1 otherwise |
| 1411 | * The value of @inlen after return is the number of octets consumed |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 1412 | * as the return value is positive, else unpredictable. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1413 | * The value of @outlen after return is the number of octets consumed. |
| 1414 | */ |
| 1415 | int |
| 1416 | UTF8ToHtml(unsigned char* out, int *outlen, |
| 1417 | const unsigned char* in, int *inlen) { |
| 1418 | const unsigned char* processed = in; |
| 1419 | const unsigned char* outend; |
| 1420 | const unsigned char* outstart = out; |
| 1421 | const unsigned char* instart = in; |
| 1422 | const unsigned char* inend; |
| 1423 | unsigned int c, d; |
| 1424 | int trailing; |
| 1425 | |
| 1426 | if (in == NULL) { |
| 1427 | /* |
| 1428 | * initialization nothing to do |
| 1429 | */ |
| 1430 | *outlen = 0; |
| 1431 | *inlen = 0; |
| 1432 | return(0); |
| 1433 | } |
| 1434 | inend = in + (*inlen); |
| 1435 | outend = out + (*outlen); |
| 1436 | while (in < inend) { |
| 1437 | d = *in++; |
| 1438 | if (d < 0x80) { c= d; trailing= 0; } |
| 1439 | else if (d < 0xC0) { |
| 1440 | /* trailing byte in leading position */ |
| 1441 | *outlen = out - outstart; |
| 1442 | *inlen = processed - instart; |
| 1443 | return(-2); |
| 1444 | } else if (d < 0xE0) { c= d & 0x1F; trailing= 1; } |
| 1445 | else if (d < 0xF0) { c= d & 0x0F; trailing= 2; } |
| 1446 | else if (d < 0xF8) { c= d & 0x07; trailing= 3; } |
| 1447 | else { |
| 1448 | /* no chance for this in Ascii */ |
| 1449 | *outlen = out - outstart; |
| 1450 | *inlen = processed - instart; |
| 1451 | return(-2); |
| 1452 | } |
| 1453 | |
| 1454 | if (inend - in < trailing) { |
| 1455 | break; |
| 1456 | } |
| 1457 | |
| 1458 | for ( ; trailing; trailing--) { |
| 1459 | if ((in >= inend) || (((d= *in++) & 0xC0) != 0x80)) |
| 1460 | break; |
| 1461 | c <<= 6; |
| 1462 | c |= d & 0x3F; |
| 1463 | } |
| 1464 | |
| 1465 | /* assertion: c is a single UTF-4 value */ |
| 1466 | if (c < 0x80) { |
| 1467 | if (out + 1 >= outend) |
| 1468 | break; |
| 1469 | *out++ = c; |
| 1470 | } else { |
| 1471 | int len; |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 1472 | const htmlEntityDesc * ent; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1473 | |
| 1474 | /* |
| 1475 | * Try to lookup a predefined HTML entity for it |
| 1476 | */ |
| 1477 | |
| 1478 | ent = htmlEntityValueLookup(c); |
| 1479 | if (ent == NULL) { |
| 1480 | /* no chance for this in Ascii */ |
| 1481 | *outlen = out - outstart; |
| 1482 | *inlen = processed - instart; |
| 1483 | return(-2); |
| 1484 | } |
| 1485 | len = strlen(ent->name); |
| 1486 | if (out + 2 + len >= outend) |
| 1487 | break; |
| 1488 | *out++ = '&'; |
| 1489 | memcpy(out, ent->name, len); |
| 1490 | out += len; |
| 1491 | *out++ = ';'; |
| 1492 | } |
| 1493 | processed = in; |
| 1494 | } |
| 1495 | *outlen = out - outstart; |
| 1496 | *inlen = processed - instart; |
| 1497 | return(0); |
| 1498 | } |
| 1499 | |
| 1500 | /** |
| 1501 | * htmlEncodeEntities: |
| 1502 | * @out: a pointer to an array of bytes to store the result |
| 1503 | * @outlen: the length of @out |
| 1504 | * @in: a pointer to an array of UTF-8 chars |
| 1505 | * @inlen: the length of @in |
| 1506 | * @quoteChar: the quote character to escape (' or ") or zero. |
| 1507 | * |
| 1508 | * Take a block of UTF-8 chars in and try to convert it to an ASCII |
| 1509 | * plus HTML entities block of chars out. |
| 1510 | * |
| 1511 | * Returns 0 if success, -2 if the transcoding fails, or -1 otherwise |
| 1512 | * The value of @inlen after return is the number of octets consumed |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 1513 | * as the return value is positive, else unpredictable. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1514 | * The value of @outlen after return is the number of octets consumed. |
| 1515 | */ |
| 1516 | int |
| 1517 | htmlEncodeEntities(unsigned char* out, int *outlen, |
| 1518 | const unsigned char* in, int *inlen, int quoteChar) { |
| 1519 | const unsigned char* processed = in; |
| 1520 | const unsigned char* outend = out + (*outlen); |
| 1521 | const unsigned char* outstart = out; |
| 1522 | const unsigned char* instart = in; |
| 1523 | const unsigned char* inend = in + (*inlen); |
| 1524 | unsigned int c, d; |
| 1525 | int trailing; |
| 1526 | |
| 1527 | while (in < inend) { |
| 1528 | d = *in++; |
| 1529 | if (d < 0x80) { c= d; trailing= 0; } |
| 1530 | else if (d < 0xC0) { |
| 1531 | /* trailing byte in leading position */ |
| 1532 | *outlen = out - outstart; |
| 1533 | *inlen = processed - instart; |
| 1534 | return(-2); |
| 1535 | } else if (d < 0xE0) { c= d & 0x1F; trailing= 1; } |
| 1536 | else if (d < 0xF0) { c= d & 0x0F; trailing= 2; } |
| 1537 | else if (d < 0xF8) { c= d & 0x07; trailing= 3; } |
| 1538 | else { |
| 1539 | /* no chance for this in Ascii */ |
| 1540 | *outlen = out - outstart; |
| 1541 | *inlen = processed - instart; |
| 1542 | return(-2); |
| 1543 | } |
| 1544 | |
| 1545 | if (inend - in < trailing) |
| 1546 | break; |
| 1547 | |
| 1548 | while (trailing--) { |
| 1549 | if (((d= *in++) & 0xC0) != 0x80) { |
| 1550 | *outlen = out - outstart; |
| 1551 | *inlen = processed - instart; |
| 1552 | return(-2); |
| 1553 | } |
| 1554 | c <<= 6; |
| 1555 | c |= d & 0x3F; |
| 1556 | } |
| 1557 | |
| 1558 | /* assertion: c is a single UTF-4 value */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1559 | if ((c < 0x80) && (c != (unsigned int) quoteChar) && |
| 1560 | (c != '&') && (c != '<') && (c != '>')) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1561 | if (out >= outend) |
| 1562 | break; |
| 1563 | *out++ = c; |
| 1564 | } else { |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 1565 | const htmlEntityDesc * ent; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1566 | const char *cp; |
| 1567 | char nbuf[16]; |
| 1568 | int len; |
| 1569 | |
| 1570 | /* |
| 1571 | * Try to lookup a predefined HTML entity for it |
| 1572 | */ |
| 1573 | ent = htmlEntityValueLookup(c); |
| 1574 | if (ent == NULL) { |
| 1575 | sprintf(nbuf, "#%u", c); |
| 1576 | cp = nbuf; |
| 1577 | } |
| 1578 | else |
| 1579 | cp = ent->name; |
| 1580 | len = strlen(cp); |
| 1581 | if (out + 2 + len > outend) |
| 1582 | break; |
| 1583 | *out++ = '&'; |
| 1584 | memcpy(out, cp, len); |
| 1585 | out += len; |
| 1586 | *out++ = ';'; |
| 1587 | } |
| 1588 | processed = in; |
| 1589 | } |
| 1590 | *outlen = out - outstart; |
| 1591 | *inlen = processed - instart; |
| 1592 | return(0); |
| 1593 | } |
| 1594 | |
| 1595 | /** |
| 1596 | * htmlDecodeEntities: |
| 1597 | * @ctxt: the parser context |
| 1598 | * @len: the len to decode (in bytes !), -1 for no size limit |
| 1599 | * @end: an end marker xmlChar, 0 if none |
| 1600 | * @end2: an end marker xmlChar, 0 if none |
| 1601 | * @end3: an end marker xmlChar, 0 if none |
| 1602 | * |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 1603 | * Substitute the HTML entities by their value |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1604 | * |
| 1605 | * DEPRECATED !!!! |
| 1606 | * |
| 1607 | * Returns A newly allocated string with the substitution done. The caller |
| 1608 | * must deallocate it ! |
| 1609 | */ |
| 1610 | xmlChar * |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 1611 | htmlDecodeEntities(htmlParserCtxtPtr ctxt ATTRIBUTE_UNUSED, int len ATTRIBUTE_UNUSED, |
| 1612 | xmlChar end ATTRIBUTE_UNUSED, xmlChar end2 ATTRIBUTE_UNUSED, xmlChar end3 ATTRIBUTE_UNUSED) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1613 | static int deprecated = 0; |
| 1614 | if (!deprecated) { |
| 1615 | xmlGenericError(xmlGenericErrorContext, |
| 1616 | "htmlDecodeEntities() deprecated function reached\n"); |
| 1617 | deprecated = 1; |
| 1618 | } |
| 1619 | return(NULL); |
| 1620 | #if 0 |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1621 | xmlChar *name = NULL; |
| 1622 | xmlChar *buffer = NULL; |
| 1623 | unsigned int buffer_size = 0; |
| 1624 | unsigned int nbchars = 0; |
| 1625 | htmlEntityDescPtr ent; |
| 1626 | unsigned int max = (unsigned int) len; |
| 1627 | int c,l; |
| 1628 | |
| 1629 | if (ctxt->depth > 40) { |
| 1630 | ctxt->errNo = XML_ERR_ENTITY_LOOP; |
| 1631 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 1632 | ctxt->sax->error(ctxt->userData, |
| 1633 | "Detected entity reference loop\n"); |
| 1634 | ctxt->wellFormed = 0; |
| 1635 | ctxt->disableSAX = 1; |
| 1636 | return(NULL); |
| 1637 | } |
| 1638 | |
| 1639 | /* |
| 1640 | * allocate a translation buffer. |
| 1641 | */ |
| 1642 | buffer_size = HTML_PARSER_BIG_BUFFER_SIZE; |
| 1643 | buffer = (xmlChar *) xmlMalloc(buffer_size * sizeof(xmlChar)); |
| 1644 | if (buffer == NULL) { |
| 1645 | perror("xmlDecodeEntities: malloc failed"); |
| 1646 | return(NULL); |
| 1647 | } |
| 1648 | |
| 1649 | /* |
| 1650 | * Ok loop until we reach one of the ending char or a size limit. |
| 1651 | */ |
| 1652 | c = CUR_CHAR(l); |
| 1653 | while ((nbchars < max) && (c != end) && |
| 1654 | (c != end2) && (c != end3)) { |
| 1655 | |
| 1656 | if (c == 0) break; |
| 1657 | if (((c == '&') && (ctxt->token != '&')) && (NXT(1) == '#')) { |
| 1658 | int val = htmlParseCharRef(ctxt); |
| 1659 | COPY_BUF(0,buffer,nbchars,val); |
| 1660 | NEXTL(l); |
| 1661 | } else if ((c == '&') && (ctxt->token != '&')) { |
| 1662 | ent = htmlParseEntityRef(ctxt, &name); |
| 1663 | if (name != NULL) { |
| 1664 | if (ent != NULL) { |
| 1665 | int val = ent->value; |
| 1666 | COPY_BUF(0,buffer,nbchars,val); |
| 1667 | NEXTL(l); |
| 1668 | } else { |
| 1669 | const xmlChar *cur = name; |
| 1670 | |
| 1671 | buffer[nbchars++] = '&'; |
| 1672 | if (nbchars > buffer_size - HTML_PARSER_BUFFER_SIZE) { |
| 1673 | growBuffer(buffer); |
| 1674 | } |
| 1675 | while (*cur != 0) { |
| 1676 | buffer[nbchars++] = *cur++; |
| 1677 | } |
| 1678 | buffer[nbchars++] = ';'; |
| 1679 | } |
| 1680 | } |
| 1681 | } else { |
| 1682 | COPY_BUF(l,buffer,nbchars,c); |
| 1683 | NEXTL(l); |
| 1684 | if (nbchars > buffer_size - HTML_PARSER_BUFFER_SIZE) { |
| 1685 | growBuffer(buffer); |
| 1686 | } |
| 1687 | } |
| 1688 | c = CUR_CHAR(l); |
| 1689 | } |
| 1690 | buffer[nbchars++] = 0; |
| 1691 | return(buffer); |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1692 | #endif |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1693 | } |
| 1694 | |
| 1695 | /************************************************************************ |
| 1696 | * * |
| 1697 | * Commodity functions to handle streams * |
| 1698 | * * |
| 1699 | ************************************************************************/ |
| 1700 | |
| 1701 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1702 | * htmlNewInputStream: |
| 1703 | * @ctxt: an HTML parser context |
| 1704 | * |
| 1705 | * Create a new input stream structure |
| 1706 | * Returns the new input stream or NULL |
| 1707 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1708 | static htmlParserInputPtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1709 | htmlNewInputStream(htmlParserCtxtPtr ctxt) { |
| 1710 | htmlParserInputPtr input; |
| 1711 | |
| 1712 | input = (xmlParserInputPtr) xmlMalloc(sizeof(htmlParserInput)); |
| 1713 | if (input == NULL) { |
| 1714 | ctxt->errNo = XML_ERR_NO_MEMORY; |
| 1715 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 1716 | ctxt->sax->error(ctxt->userData, |
| 1717 | "malloc: couldn't allocate a new input stream\n"); |
| 1718 | return(NULL); |
| 1719 | } |
| 1720 | memset(input, 0, sizeof(htmlParserInput)); |
| 1721 | input->filename = NULL; |
| 1722 | input->directory = NULL; |
| 1723 | input->base = NULL; |
| 1724 | input->cur = NULL; |
| 1725 | input->buf = NULL; |
| 1726 | input->line = 1; |
| 1727 | input->col = 1; |
| 1728 | input->buf = NULL; |
| 1729 | input->free = NULL; |
| 1730 | input->version = NULL; |
| 1731 | input->consumed = 0; |
| 1732 | input->length = 0; |
| 1733 | return(input); |
| 1734 | } |
| 1735 | |
| 1736 | |
| 1737 | /************************************************************************ |
| 1738 | * * |
| 1739 | * Commodity functions, cleanup needed ? * |
| 1740 | * * |
| 1741 | ************************************************************************/ |
| 1742 | |
| 1743 | /** |
| 1744 | * areBlanks: |
| 1745 | * @ctxt: an HTML parser context |
| 1746 | * @str: a xmlChar * |
| 1747 | * @len: the size of @str |
| 1748 | * |
| 1749 | * Is this a sequence of blank chars that one can ignore ? |
| 1750 | * |
| 1751 | * Returns 1 if ignorable 0 otherwise. |
| 1752 | */ |
| 1753 | |
| 1754 | static int areBlanks(htmlParserCtxtPtr ctxt, const xmlChar *str, int len) { |
| 1755 | int i; |
| 1756 | xmlNodePtr lastChild; |
| 1757 | |
| 1758 | for (i = 0;i < len;i++) |
| 1759 | if (!(IS_BLANK(str[i]))) return(0); |
| 1760 | |
| 1761 | if (CUR == 0) return(1); |
| 1762 | if (CUR != '<') return(0); |
| 1763 | if (ctxt->name == NULL) |
| 1764 | return(1); |
| 1765 | if (xmlStrEqual(ctxt->name, BAD_CAST"html")) |
| 1766 | return(1); |
| 1767 | if (xmlStrEqual(ctxt->name, BAD_CAST"head")) |
| 1768 | return(1); |
| 1769 | if (xmlStrEqual(ctxt->name, BAD_CAST"body")) |
| 1770 | return(1); |
| 1771 | if (ctxt->node == NULL) return(0); |
| 1772 | lastChild = xmlGetLastChild(ctxt->node); |
| 1773 | if (lastChild == NULL) { |
Daniel Veillard | 7db3773 | 2001-07-12 01:20:08 +0000 | [diff] [blame] | 1774 | if ((ctxt->node->type != XML_ELEMENT_NODE) && |
| 1775 | (ctxt->node->content != NULL)) return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1776 | } else if (xmlNodeIsText(lastChild)) { |
| 1777 | return(0); |
| 1778 | } else if (xmlStrEqual(lastChild->name, BAD_CAST"b")) { |
| 1779 | return(0); |
| 1780 | } else if (xmlStrEqual(lastChild->name, BAD_CAST"bold")) { |
| 1781 | return(0); |
| 1782 | } else if (xmlStrEqual(lastChild->name, BAD_CAST"em")) { |
| 1783 | return(0); |
| 1784 | } |
| 1785 | return(1); |
| 1786 | } |
| 1787 | |
| 1788 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1789 | * htmlNewDocNoDtD: |
| 1790 | * @URI: URI for the dtd, or NULL |
| 1791 | * @ExternalID: the external ID of the DTD, or NULL |
| 1792 | * |
Daniel Veillard | 5e2dace | 2001-07-18 19:30:27 +0000 | [diff] [blame] | 1793 | * Creates a new HTML document without a DTD node if @URI and @ExternalID |
| 1794 | * are NULL |
| 1795 | * |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 1796 | * Returns a new document, do not initialize the DTD if not provided |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1797 | */ |
| 1798 | htmlDocPtr |
| 1799 | htmlNewDocNoDtD(const xmlChar *URI, const xmlChar *ExternalID) { |
| 1800 | xmlDocPtr cur; |
| 1801 | |
| 1802 | /* |
| 1803 | * Allocate a new document and fill the fields. |
| 1804 | */ |
| 1805 | cur = (xmlDocPtr) xmlMalloc(sizeof(xmlDoc)); |
| 1806 | if (cur == NULL) { |
| 1807 | xmlGenericError(xmlGenericErrorContext, |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 1808 | "htmlNewDocNoDtD : malloc failed\n"); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1809 | return(NULL); |
| 1810 | } |
| 1811 | memset(cur, 0, sizeof(xmlDoc)); |
| 1812 | |
| 1813 | cur->type = XML_HTML_DOCUMENT_NODE; |
| 1814 | cur->version = NULL; |
| 1815 | cur->intSubset = NULL; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1816 | cur->doc = cur; |
| 1817 | cur->name = NULL; |
| 1818 | cur->children = NULL; |
| 1819 | cur->extSubset = NULL; |
| 1820 | cur->oldNs = NULL; |
| 1821 | cur->encoding = NULL; |
| 1822 | cur->standalone = 1; |
| 1823 | cur->compression = 0; |
| 1824 | cur->ids = NULL; |
| 1825 | cur->refs = NULL; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1826 | cur->_private = NULL; |
Daniel Veillard | b6b0fd8 | 2001-10-22 12:31:11 +0000 | [diff] [blame] | 1827 | if ((ExternalID != NULL) || |
| 1828 | (URI != NULL)) |
Daniel Veillard | 5151c06 | 2001-10-23 13:10:19 +0000 | [diff] [blame] | 1829 | xmlCreateIntSubset(cur, BAD_CAST "HTML", ExternalID, URI); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1830 | return(cur); |
| 1831 | } |
| 1832 | |
| 1833 | /** |
| 1834 | * htmlNewDoc: |
| 1835 | * @URI: URI for the dtd, or NULL |
| 1836 | * @ExternalID: the external ID of the DTD, or NULL |
| 1837 | * |
Daniel Veillard | 5e2dace | 2001-07-18 19:30:27 +0000 | [diff] [blame] | 1838 | * Creates a new HTML document |
| 1839 | * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1840 | * Returns a new document |
| 1841 | */ |
| 1842 | htmlDocPtr |
| 1843 | htmlNewDoc(const xmlChar *URI, const xmlChar *ExternalID) { |
| 1844 | if ((URI == NULL) && (ExternalID == NULL)) |
| 1845 | return(htmlNewDocNoDtD( |
Daniel Veillard | 6426935 | 2001-05-04 17:52:34 +0000 | [diff] [blame] | 1846 | BAD_CAST "http://www.w3.org/TR/REC-html40/loose.dtd", |
| 1847 | BAD_CAST "-//W3C//DTD HTML 4.0 Transitional//EN")); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1848 | |
| 1849 | return(htmlNewDocNoDtD(URI, ExternalID)); |
| 1850 | } |
| 1851 | |
| 1852 | |
| 1853 | /************************************************************************ |
| 1854 | * * |
| 1855 | * The parser itself * |
| 1856 | * Relates to http://www.w3.org/TR/html40 * |
| 1857 | * * |
| 1858 | ************************************************************************/ |
| 1859 | |
| 1860 | /************************************************************************ |
| 1861 | * * |
| 1862 | * The parser itself * |
| 1863 | * * |
| 1864 | ************************************************************************/ |
| 1865 | |
| 1866 | /** |
| 1867 | * htmlParseHTMLName: |
| 1868 | * @ctxt: an HTML parser context |
| 1869 | * |
| 1870 | * parse an HTML tag or attribute name, note that we convert it to lowercase |
| 1871 | * since HTML names are not case-sensitive. |
| 1872 | * |
| 1873 | * Returns the Tag Name parsed or NULL |
| 1874 | */ |
| 1875 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1876 | static xmlChar * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1877 | htmlParseHTMLName(htmlParserCtxtPtr ctxt) { |
| 1878 | xmlChar *ret = NULL; |
| 1879 | int i = 0; |
| 1880 | xmlChar loc[HTML_PARSER_BUFFER_SIZE]; |
| 1881 | |
| 1882 | if (!IS_LETTER(CUR) && (CUR != '_') && |
| 1883 | (CUR != ':')) return(NULL); |
| 1884 | |
| 1885 | while ((i < HTML_PARSER_BUFFER_SIZE) && |
| 1886 | ((IS_LETTER(CUR)) || (IS_DIGIT(CUR)) || |
| 1887 | (CUR == ':') || (CUR == '-') || (CUR == '_'))) { |
| 1888 | if ((CUR >= 'A') && (CUR <= 'Z')) loc[i] = CUR + 0x20; |
| 1889 | else loc[i] = CUR; |
| 1890 | i++; |
| 1891 | |
| 1892 | NEXT; |
| 1893 | } |
| 1894 | |
| 1895 | ret = xmlStrndup(loc, i); |
| 1896 | |
| 1897 | return(ret); |
| 1898 | } |
| 1899 | |
| 1900 | /** |
| 1901 | * htmlParseName: |
| 1902 | * @ctxt: an HTML parser context |
| 1903 | * |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 1904 | * parse an HTML name, this routine is case sensitive. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1905 | * |
| 1906 | * Returns the Name parsed or NULL |
| 1907 | */ |
| 1908 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1909 | static xmlChar * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1910 | htmlParseName(htmlParserCtxtPtr ctxt) { |
| 1911 | xmlChar buf[HTML_MAX_NAMELEN]; |
| 1912 | int len = 0; |
| 1913 | |
| 1914 | GROW; |
| 1915 | if (!IS_LETTER(CUR) && (CUR != '_')) { |
| 1916 | return(NULL); |
| 1917 | } |
| 1918 | |
| 1919 | while ((IS_LETTER(CUR)) || (IS_DIGIT(CUR)) || |
| 1920 | (CUR == '.') || (CUR == '-') || |
| 1921 | (CUR == '_') || (CUR == ':') || |
| 1922 | (IS_COMBINING(CUR)) || |
| 1923 | (IS_EXTENDER(CUR))) { |
| 1924 | buf[len++] = CUR; |
| 1925 | NEXT; |
| 1926 | if (len >= HTML_MAX_NAMELEN) { |
| 1927 | xmlGenericError(xmlGenericErrorContext, |
| 1928 | "htmlParseName: reached HTML_MAX_NAMELEN limit\n"); |
| 1929 | while ((IS_LETTER(CUR)) || (IS_DIGIT(CUR)) || |
| 1930 | (CUR == '.') || (CUR == '-') || |
| 1931 | (CUR == '_') || (CUR == ':') || |
| 1932 | (IS_COMBINING(CUR)) || |
| 1933 | (IS_EXTENDER(CUR))) |
| 1934 | NEXT; |
| 1935 | break; |
| 1936 | } |
| 1937 | } |
| 1938 | return(xmlStrndup(buf, len)); |
| 1939 | } |
| 1940 | |
| 1941 | /** |
| 1942 | * htmlParseHTMLAttribute: |
| 1943 | * @ctxt: an HTML parser context |
| 1944 | * @stop: a char stop value |
| 1945 | * |
| 1946 | * parse an HTML attribute value till the stop (quote), if |
| 1947 | * stop is 0 then it stops at the first space |
| 1948 | * |
| 1949 | * Returns the attribute parsed or NULL |
| 1950 | */ |
| 1951 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1952 | static xmlChar * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1953 | htmlParseHTMLAttribute(htmlParserCtxtPtr ctxt, const xmlChar stop) { |
| 1954 | xmlChar *buffer = NULL; |
| 1955 | int buffer_size = 0; |
| 1956 | xmlChar *out = NULL; |
| 1957 | xmlChar *name = NULL; |
| 1958 | |
| 1959 | xmlChar *cur = NULL; |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 1960 | const htmlEntityDesc * ent; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1961 | |
| 1962 | /* |
| 1963 | * allocate a translation buffer. |
| 1964 | */ |
| 1965 | buffer_size = HTML_PARSER_BUFFER_SIZE; |
| 1966 | buffer = (xmlChar *) xmlMalloc(buffer_size * sizeof(xmlChar)); |
| 1967 | if (buffer == NULL) { |
| 1968 | perror("htmlParseHTMLAttribute: malloc failed"); |
| 1969 | return(NULL); |
| 1970 | } |
| 1971 | out = buffer; |
| 1972 | |
| 1973 | /* |
| 1974 | * Ok loop until we reach one of the ending chars |
| 1975 | */ |
Daniel Veillard | 957fdcf | 2001-11-06 22:50:19 +0000 | [diff] [blame] | 1976 | while ((CUR != 0) && (CUR != stop)) { |
| 1977 | if ((stop == 0) && (CUR == '>')) break; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1978 | if ((stop == 0) && (IS_BLANK(CUR))) break; |
| 1979 | if (CUR == '&') { |
| 1980 | if (NXT(1) == '#') { |
| 1981 | unsigned int c; |
| 1982 | int bits; |
| 1983 | |
| 1984 | c = htmlParseCharRef(ctxt); |
| 1985 | if (c < 0x80) |
| 1986 | { *out++ = c; bits= -6; } |
| 1987 | else if (c < 0x800) |
| 1988 | { *out++ =((c >> 6) & 0x1F) | 0xC0; bits= 0; } |
| 1989 | else if (c < 0x10000) |
| 1990 | { *out++ =((c >> 12) & 0x0F) | 0xE0; bits= 6; } |
| 1991 | else |
| 1992 | { *out++ =((c >> 18) & 0x07) | 0xF0; bits= 12; } |
| 1993 | |
| 1994 | for ( ; bits >= 0; bits-= 6) { |
| 1995 | *out++ = ((c >> bits) & 0x3F) | 0x80; |
| 1996 | } |
| 1997 | } else { |
| 1998 | ent = htmlParseEntityRef(ctxt, &name); |
| 1999 | if (name == NULL) { |
| 2000 | *out++ = '&'; |
| 2001 | if (out - buffer > buffer_size - 100) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2002 | int indx = out - buffer; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2003 | |
| 2004 | growBuffer(buffer); |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2005 | out = &buffer[indx]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2006 | } |
| 2007 | } else if (ent == NULL) { |
| 2008 | *out++ = '&'; |
| 2009 | cur = name; |
| 2010 | while (*cur != 0) { |
| 2011 | if (out - buffer > buffer_size - 100) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2012 | int indx = out - buffer; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2013 | |
| 2014 | growBuffer(buffer); |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2015 | out = &buffer[indx]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2016 | } |
| 2017 | *out++ = *cur++; |
| 2018 | } |
| 2019 | xmlFree(name); |
| 2020 | } else { |
| 2021 | unsigned int c; |
| 2022 | int bits; |
| 2023 | |
| 2024 | if (out - buffer > buffer_size - 100) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2025 | int indx = out - buffer; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2026 | |
| 2027 | growBuffer(buffer); |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2028 | out = &buffer[indx]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2029 | } |
| 2030 | c = (xmlChar)ent->value; |
| 2031 | if (c < 0x80) |
| 2032 | { *out++ = c; bits= -6; } |
| 2033 | else if (c < 0x800) |
| 2034 | { *out++ =((c >> 6) & 0x1F) | 0xC0; bits= 0; } |
| 2035 | else if (c < 0x10000) |
| 2036 | { *out++ =((c >> 12) & 0x0F) | 0xE0; bits= 6; } |
| 2037 | else |
| 2038 | { *out++ =((c >> 18) & 0x07) | 0xF0; bits= 12; } |
| 2039 | |
| 2040 | for ( ; bits >= 0; bits-= 6) { |
| 2041 | *out++ = ((c >> bits) & 0x3F) | 0x80; |
| 2042 | } |
| 2043 | xmlFree(name); |
| 2044 | } |
| 2045 | } |
| 2046 | } else { |
| 2047 | unsigned int c; |
| 2048 | int bits, l; |
| 2049 | |
| 2050 | if (out - buffer > buffer_size - 100) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2051 | int indx = out - buffer; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2052 | |
| 2053 | growBuffer(buffer); |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2054 | out = &buffer[indx]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2055 | } |
| 2056 | c = CUR_CHAR(l); |
| 2057 | if (c < 0x80) |
| 2058 | { *out++ = c; bits= -6; } |
| 2059 | else if (c < 0x800) |
| 2060 | { *out++ =((c >> 6) & 0x1F) | 0xC0; bits= 0; } |
| 2061 | else if (c < 0x10000) |
| 2062 | { *out++ =((c >> 12) & 0x0F) | 0xE0; bits= 6; } |
| 2063 | else |
| 2064 | { *out++ =((c >> 18) & 0x07) | 0xF0; bits= 12; } |
| 2065 | |
| 2066 | for ( ; bits >= 0; bits-= 6) { |
| 2067 | *out++ = ((c >> bits) & 0x3F) | 0x80; |
| 2068 | } |
| 2069 | NEXT; |
| 2070 | } |
| 2071 | } |
| 2072 | *out++ = 0; |
| 2073 | return(buffer); |
| 2074 | } |
| 2075 | |
| 2076 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2077 | * htmlParseEntityRef: |
| 2078 | * @ctxt: an HTML parser context |
| 2079 | * @str: location to store the entity name |
| 2080 | * |
| 2081 | * parse an HTML ENTITY references |
| 2082 | * |
| 2083 | * [68] EntityRef ::= '&' Name ';' |
| 2084 | * |
| 2085 | * Returns the associated htmlEntityDescPtr if found, or NULL otherwise, |
| 2086 | * if non-NULL *str will have to be freed by the caller. |
| 2087 | */ |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 2088 | const htmlEntityDesc * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2089 | htmlParseEntityRef(htmlParserCtxtPtr ctxt, xmlChar **str) { |
| 2090 | xmlChar *name; |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 2091 | const htmlEntityDesc * ent = NULL; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2092 | *str = NULL; |
| 2093 | |
| 2094 | if (CUR == '&') { |
| 2095 | NEXT; |
| 2096 | name = htmlParseName(ctxt); |
| 2097 | if (name == NULL) { |
| 2098 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2099 | ctxt->sax->error(ctxt->userData, "htmlParseEntityRef: no name\n"); |
| 2100 | ctxt->wellFormed = 0; |
| 2101 | } else { |
| 2102 | GROW; |
| 2103 | if (CUR == ';') { |
| 2104 | *str = name; |
| 2105 | |
| 2106 | /* |
| 2107 | * Lookup the entity in the table. |
| 2108 | */ |
| 2109 | ent = htmlEntityLookup(name); |
| 2110 | if (ent != NULL) /* OK that's ugly !!! */ |
| 2111 | NEXT; |
| 2112 | } else { |
| 2113 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2114 | ctxt->sax->error(ctxt->userData, |
| 2115 | "htmlParseEntityRef: expecting ';'\n"); |
| 2116 | *str = name; |
| 2117 | } |
| 2118 | } |
| 2119 | } |
| 2120 | return(ent); |
| 2121 | } |
| 2122 | |
| 2123 | /** |
| 2124 | * htmlParseAttValue: |
| 2125 | * @ctxt: an HTML parser context |
| 2126 | * |
| 2127 | * parse a value for an attribute |
| 2128 | * Note: the parser won't do substitution of entities here, this |
| 2129 | * will be handled later in xmlStringGetNodeList, unless it was |
| 2130 | * asked for ctxt->replaceEntities != 0 |
| 2131 | * |
| 2132 | * Returns the AttValue parsed or NULL. |
| 2133 | */ |
| 2134 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2135 | static xmlChar * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2136 | htmlParseAttValue(htmlParserCtxtPtr ctxt) { |
| 2137 | xmlChar *ret = NULL; |
| 2138 | |
| 2139 | if (CUR == '"') { |
| 2140 | NEXT; |
| 2141 | ret = htmlParseHTMLAttribute(ctxt, '"'); |
| 2142 | if (CUR != '"') { |
| 2143 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2144 | ctxt->sax->error(ctxt->userData, "AttValue: ' expected\n"); |
| 2145 | ctxt->wellFormed = 0; |
| 2146 | } else |
| 2147 | NEXT; |
| 2148 | } else if (CUR == '\'') { |
| 2149 | NEXT; |
| 2150 | ret = htmlParseHTMLAttribute(ctxt, '\''); |
| 2151 | if (CUR != '\'') { |
| 2152 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2153 | ctxt->sax->error(ctxt->userData, "AttValue: ' expected\n"); |
| 2154 | ctxt->wellFormed = 0; |
| 2155 | } else |
| 2156 | NEXT; |
| 2157 | } else { |
| 2158 | /* |
| 2159 | * That's an HTMLism, the attribute value may not be quoted |
| 2160 | */ |
| 2161 | ret = htmlParseHTMLAttribute(ctxt, 0); |
| 2162 | if (ret == NULL) { |
| 2163 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2164 | ctxt->sax->error(ctxt->userData, "AttValue: no value found\n"); |
| 2165 | ctxt->wellFormed = 0; |
| 2166 | } |
| 2167 | } |
| 2168 | return(ret); |
| 2169 | } |
| 2170 | |
| 2171 | /** |
| 2172 | * htmlParseSystemLiteral: |
| 2173 | * @ctxt: an HTML parser context |
| 2174 | * |
| 2175 | * parse an HTML Literal |
| 2176 | * |
| 2177 | * [11] SystemLiteral ::= ('"' [^"]* '"') | ("'" [^']* "'") |
| 2178 | * |
| 2179 | * Returns the SystemLiteral parsed or NULL |
| 2180 | */ |
| 2181 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2182 | static xmlChar * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2183 | htmlParseSystemLiteral(htmlParserCtxtPtr ctxt) { |
| 2184 | const xmlChar *q; |
| 2185 | xmlChar *ret = NULL; |
| 2186 | |
| 2187 | if (CUR == '"') { |
| 2188 | NEXT; |
| 2189 | q = CUR_PTR; |
| 2190 | while ((IS_CHAR(CUR)) && (CUR != '"')) |
| 2191 | NEXT; |
| 2192 | if (!IS_CHAR(CUR)) { |
| 2193 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2194 | ctxt->sax->error(ctxt->userData, "Unfinished SystemLiteral\n"); |
| 2195 | ctxt->wellFormed = 0; |
| 2196 | } else { |
| 2197 | ret = xmlStrndup(q, CUR_PTR - q); |
| 2198 | NEXT; |
| 2199 | } |
| 2200 | } else if (CUR == '\'') { |
| 2201 | NEXT; |
| 2202 | q = CUR_PTR; |
| 2203 | while ((IS_CHAR(CUR)) && (CUR != '\'')) |
| 2204 | NEXT; |
| 2205 | if (!IS_CHAR(CUR)) { |
| 2206 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2207 | ctxt->sax->error(ctxt->userData, "Unfinished SystemLiteral\n"); |
| 2208 | ctxt->wellFormed = 0; |
| 2209 | } else { |
| 2210 | ret = xmlStrndup(q, CUR_PTR - q); |
| 2211 | NEXT; |
| 2212 | } |
| 2213 | } else { |
| 2214 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2215 | ctxt->sax->error(ctxt->userData, |
| 2216 | "SystemLiteral \" or ' expected\n"); |
| 2217 | ctxt->wellFormed = 0; |
| 2218 | } |
| 2219 | |
| 2220 | return(ret); |
| 2221 | } |
| 2222 | |
| 2223 | /** |
| 2224 | * htmlParsePubidLiteral: |
| 2225 | * @ctxt: an HTML parser context |
| 2226 | * |
| 2227 | * parse an HTML public literal |
| 2228 | * |
| 2229 | * [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'" |
| 2230 | * |
| 2231 | * Returns the PubidLiteral parsed or NULL. |
| 2232 | */ |
| 2233 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2234 | static xmlChar * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2235 | htmlParsePubidLiteral(htmlParserCtxtPtr ctxt) { |
| 2236 | const xmlChar *q; |
| 2237 | xmlChar *ret = NULL; |
| 2238 | /* |
| 2239 | * Name ::= (Letter | '_') (NameChar)* |
| 2240 | */ |
| 2241 | if (CUR == '"') { |
| 2242 | NEXT; |
| 2243 | q = CUR_PTR; |
| 2244 | while (IS_PUBIDCHAR(CUR)) NEXT; |
| 2245 | if (CUR != '"') { |
| 2246 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2247 | ctxt->sax->error(ctxt->userData, "Unfinished PubidLiteral\n"); |
| 2248 | ctxt->wellFormed = 0; |
| 2249 | } else { |
| 2250 | ret = xmlStrndup(q, CUR_PTR - q); |
| 2251 | NEXT; |
| 2252 | } |
| 2253 | } else if (CUR == '\'') { |
| 2254 | NEXT; |
| 2255 | q = CUR_PTR; |
| 2256 | while ((IS_LETTER(CUR)) && (CUR != '\'')) |
| 2257 | NEXT; |
| 2258 | if (!IS_LETTER(CUR)) { |
| 2259 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2260 | ctxt->sax->error(ctxt->userData, "Unfinished PubidLiteral\n"); |
| 2261 | ctxt->wellFormed = 0; |
| 2262 | } else { |
| 2263 | ret = xmlStrndup(q, CUR_PTR - q); |
| 2264 | NEXT; |
| 2265 | } |
| 2266 | } else { |
| 2267 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2268 | ctxt->sax->error(ctxt->userData, "SystemLiteral \" or ' expected\n"); |
| 2269 | ctxt->wellFormed = 0; |
| 2270 | } |
| 2271 | |
| 2272 | return(ret); |
| 2273 | } |
| 2274 | |
| 2275 | /** |
| 2276 | * htmlParseScript: |
| 2277 | * @ctxt: an HTML parser context |
| 2278 | * |
| 2279 | * parse the content of an HTML SCRIPT or STYLE element |
| 2280 | * http://www.w3.org/TR/html4/sgml/dtd.html#Script |
| 2281 | * http://www.w3.org/TR/html4/sgml/dtd.html#StyleSheet |
| 2282 | * http://www.w3.org/TR/html4/types.html#type-script |
| 2283 | * http://www.w3.org/TR/html4/types.html#h-6.15 |
| 2284 | * http://www.w3.org/TR/html4/appendix/notes.html#h-B.3.2.1 |
| 2285 | * |
| 2286 | * Script data ( %Script; in the DTD) can be the content of the SCRIPT |
| 2287 | * element and the value of intrinsic event attributes. User agents must |
| 2288 | * not evaluate script data as HTML markup but instead must pass it on as |
| 2289 | * data to a script engine. |
| 2290 | * NOTES: |
| 2291 | * - The content is passed like CDATA |
| 2292 | * - the attributes for style and scripting "onXXX" are also described |
| 2293 | * as CDATA but SGML allows entities references in attributes so their |
| 2294 | * processing is identical as other attributes |
| 2295 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2296 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2297 | htmlParseScript(htmlParserCtxtPtr ctxt) { |
| 2298 | xmlChar buf[HTML_PARSER_BIG_BUFFER_SIZE + 1]; |
| 2299 | int nbchar = 0; |
| 2300 | xmlChar cur; |
| 2301 | |
| 2302 | SHRINK; |
| 2303 | cur = CUR; |
| 2304 | while (IS_CHAR(cur)) { |
Daniel Veillard | c1f7834 | 2001-11-10 11:43:05 +0000 | [diff] [blame] | 2305 | if ((cur == '<') && (NXT(1) == '!') && (NXT(2) == '-') && |
| 2306 | (NXT(3) == '-')) { |
| 2307 | if ((nbchar != 0) && (ctxt->sax != NULL) && (!ctxt->disableSAX)) { |
| 2308 | if (ctxt->sax->cdataBlock!= NULL) { |
| 2309 | /* |
| 2310 | * Insert as CDATA, which is the same as HTML_PRESERVE_NODE |
| 2311 | */ |
| 2312 | ctxt->sax->cdataBlock(ctxt->userData, buf, nbchar); |
| 2313 | } |
| 2314 | } |
| 2315 | nbchar = 0; |
| 2316 | htmlParseComment(ctxt); |
| 2317 | cur = CUR; |
| 2318 | continue; |
| 2319 | } else if ((cur == '<') && (NXT(1) == '/')) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2320 | /* |
| 2321 | * One should break here, the specification is clear: |
| 2322 | * Authors should therefore escape "</" within the content. |
| 2323 | * Escape mechanisms are specific to each scripting or |
| 2324 | * style sheet language. |
| 2325 | */ |
| 2326 | if (((NXT(2) >= 'A') && (NXT(2) <= 'Z')) || |
| 2327 | ((NXT(2) >= 'a') && (NXT(2) <= 'z'))) |
| 2328 | break; /* while */ |
| 2329 | } |
| 2330 | buf[nbchar++] = cur; |
| 2331 | if (nbchar >= HTML_PARSER_BIG_BUFFER_SIZE) { |
| 2332 | if (ctxt->sax->cdataBlock!= NULL) { |
| 2333 | /* |
| 2334 | * Insert as CDATA, which is the same as HTML_PRESERVE_NODE |
| 2335 | */ |
| 2336 | ctxt->sax->cdataBlock(ctxt->userData, buf, nbchar); |
| 2337 | } |
| 2338 | nbchar = 0; |
| 2339 | } |
| 2340 | NEXT; |
| 2341 | cur = CUR; |
| 2342 | } |
| 2343 | if (!(IS_CHAR(cur))) { |
| 2344 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2345 | ctxt->sax->error(ctxt->userData, |
| 2346 | "Invalid char in CDATA 0x%X\n", cur); |
| 2347 | ctxt->wellFormed = 0; |
| 2348 | NEXT; |
| 2349 | } |
| 2350 | |
| 2351 | if ((nbchar != 0) && (ctxt->sax != NULL) && (!ctxt->disableSAX)) { |
| 2352 | if (ctxt->sax->cdataBlock!= NULL) { |
| 2353 | /* |
| 2354 | * Insert as CDATA, which is the same as HTML_PRESERVE_NODE |
| 2355 | */ |
| 2356 | ctxt->sax->cdataBlock(ctxt->userData, buf, nbchar); |
| 2357 | } |
| 2358 | } |
| 2359 | } |
| 2360 | |
| 2361 | |
| 2362 | /** |
| 2363 | * htmlParseCharData: |
| 2364 | * @ctxt: an HTML parser context |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2365 | * |
| 2366 | * parse a CharData section. |
| 2367 | * if we are within a CDATA section ']]>' marks an end of section. |
| 2368 | * |
| 2369 | * [14] CharData ::= [^<&]* - ([^<&]* ']]>' [^<&]*) |
| 2370 | */ |
| 2371 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2372 | static void |
| 2373 | htmlParseCharData(htmlParserCtxtPtr ctxt) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2374 | xmlChar buf[HTML_PARSER_BIG_BUFFER_SIZE + 5]; |
| 2375 | int nbchar = 0; |
| 2376 | int cur, l; |
| 2377 | |
| 2378 | SHRINK; |
| 2379 | cur = CUR_CHAR(l); |
| 2380 | while (((cur != '<') || (ctxt->token == '<')) && |
| 2381 | ((cur != '&') || (ctxt->token == '&')) && |
| 2382 | (IS_CHAR(cur))) { |
| 2383 | COPY_BUF(l,buf,nbchar,cur); |
| 2384 | if (nbchar >= HTML_PARSER_BIG_BUFFER_SIZE) { |
| 2385 | /* |
| 2386 | * Ok the segment is to be consumed as chars. |
| 2387 | */ |
| 2388 | if ((ctxt->sax != NULL) && (!ctxt->disableSAX)) { |
| 2389 | if (areBlanks(ctxt, buf, nbchar)) { |
| 2390 | if (ctxt->sax->ignorableWhitespace != NULL) |
| 2391 | ctxt->sax->ignorableWhitespace(ctxt->userData, |
| 2392 | buf, nbchar); |
| 2393 | } else { |
| 2394 | htmlCheckParagraph(ctxt); |
| 2395 | if (ctxt->sax->characters != NULL) |
| 2396 | ctxt->sax->characters(ctxt->userData, buf, nbchar); |
| 2397 | } |
| 2398 | } |
| 2399 | nbchar = 0; |
| 2400 | } |
| 2401 | NEXTL(l); |
| 2402 | cur = CUR_CHAR(l); |
| 2403 | } |
| 2404 | if (nbchar != 0) { |
| 2405 | /* |
| 2406 | * Ok the segment is to be consumed as chars. |
| 2407 | */ |
| 2408 | if ((ctxt->sax != NULL) && (!ctxt->disableSAX)) { |
| 2409 | if (areBlanks(ctxt, buf, nbchar)) { |
| 2410 | if (ctxt->sax->ignorableWhitespace != NULL) |
| 2411 | ctxt->sax->ignorableWhitespace(ctxt->userData, buf, nbchar); |
| 2412 | } else { |
| 2413 | htmlCheckParagraph(ctxt); |
| 2414 | if (ctxt->sax->characters != NULL) |
| 2415 | ctxt->sax->characters(ctxt->userData, buf, nbchar); |
| 2416 | } |
| 2417 | } |
Daniel Veillard | 7cc95c0 | 2001-10-17 15:45:12 +0000 | [diff] [blame] | 2418 | } else { |
| 2419 | /* |
| 2420 | * Loop detection |
| 2421 | */ |
| 2422 | if (cur == 0) |
| 2423 | ctxt->instate = XML_PARSER_EOF; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2424 | } |
| 2425 | } |
| 2426 | |
| 2427 | /** |
| 2428 | * htmlParseExternalID: |
| 2429 | * @ctxt: an HTML parser context |
| 2430 | * @publicID: a xmlChar** receiving PubidLiteral |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2431 | * |
| 2432 | * Parse an External ID or a Public ID |
| 2433 | * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2434 | * [75] ExternalID ::= 'SYSTEM' S SystemLiteral |
| 2435 | * | 'PUBLIC' S PubidLiteral S SystemLiteral |
| 2436 | * |
| 2437 | * [83] PublicID ::= 'PUBLIC' S PubidLiteral |
| 2438 | * |
| 2439 | * Returns the function returns SystemLiteral and in the second |
| 2440 | * case publicID receives PubidLiteral, is strict is off |
| 2441 | * it is possible to return NULL and have publicID set. |
| 2442 | */ |
| 2443 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2444 | static xmlChar * |
| 2445 | htmlParseExternalID(htmlParserCtxtPtr ctxt, xmlChar **publicID) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2446 | xmlChar *URI = NULL; |
| 2447 | |
| 2448 | if ((UPPER == 'S') && (UPP(1) == 'Y') && |
| 2449 | (UPP(2) == 'S') && (UPP(3) == 'T') && |
| 2450 | (UPP(4) == 'E') && (UPP(5) == 'M')) { |
| 2451 | SKIP(6); |
| 2452 | if (!IS_BLANK(CUR)) { |
| 2453 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2454 | ctxt->sax->error(ctxt->userData, |
| 2455 | "Space required after 'SYSTEM'\n"); |
| 2456 | ctxt->wellFormed = 0; |
| 2457 | } |
| 2458 | SKIP_BLANKS; |
| 2459 | URI = htmlParseSystemLiteral(ctxt); |
| 2460 | if (URI == NULL) { |
| 2461 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2462 | ctxt->sax->error(ctxt->userData, |
| 2463 | "htmlParseExternalID: SYSTEM, no URI\n"); |
| 2464 | ctxt->wellFormed = 0; |
| 2465 | } |
| 2466 | } else if ((UPPER == 'P') && (UPP(1) == 'U') && |
| 2467 | (UPP(2) == 'B') && (UPP(3) == 'L') && |
| 2468 | (UPP(4) == 'I') && (UPP(5) == 'C')) { |
| 2469 | SKIP(6); |
| 2470 | if (!IS_BLANK(CUR)) { |
| 2471 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2472 | ctxt->sax->error(ctxt->userData, |
| 2473 | "Space required after 'PUBLIC'\n"); |
| 2474 | ctxt->wellFormed = 0; |
| 2475 | } |
| 2476 | SKIP_BLANKS; |
| 2477 | *publicID = htmlParsePubidLiteral(ctxt); |
| 2478 | if (*publicID == NULL) { |
| 2479 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2480 | ctxt->sax->error(ctxt->userData, |
| 2481 | "htmlParseExternalID: PUBLIC, no Public Identifier\n"); |
| 2482 | ctxt->wellFormed = 0; |
| 2483 | } |
| 2484 | SKIP_BLANKS; |
| 2485 | if ((CUR == '"') || (CUR == '\'')) { |
| 2486 | URI = htmlParseSystemLiteral(ctxt); |
| 2487 | } |
| 2488 | } |
| 2489 | return(URI); |
| 2490 | } |
| 2491 | |
| 2492 | /** |
| 2493 | * htmlParseComment: |
| 2494 | * @ctxt: an HTML parser context |
| 2495 | * |
| 2496 | * Parse an XML (SGML) comment <!-- .... --> |
| 2497 | * |
| 2498 | * [15] Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->' |
| 2499 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2500 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2501 | htmlParseComment(htmlParserCtxtPtr ctxt) { |
| 2502 | xmlChar *buf = NULL; |
| 2503 | int len; |
| 2504 | int size = HTML_PARSER_BUFFER_SIZE; |
| 2505 | int q, ql; |
| 2506 | int r, rl; |
| 2507 | int cur, l; |
| 2508 | xmlParserInputState state; |
| 2509 | |
| 2510 | /* |
| 2511 | * Check that there is a comment right here. |
| 2512 | */ |
| 2513 | if ((RAW != '<') || (NXT(1) != '!') || |
| 2514 | (NXT(2) != '-') || (NXT(3) != '-')) return; |
| 2515 | |
| 2516 | state = ctxt->instate; |
| 2517 | ctxt->instate = XML_PARSER_COMMENT; |
| 2518 | SHRINK; |
| 2519 | SKIP(4); |
| 2520 | buf = (xmlChar *) xmlMalloc(size * sizeof(xmlChar)); |
| 2521 | if (buf == NULL) { |
| 2522 | xmlGenericError(xmlGenericErrorContext, |
| 2523 | "malloc of %d byte failed\n", size); |
| 2524 | ctxt->instate = state; |
| 2525 | return; |
| 2526 | } |
| 2527 | q = CUR_CHAR(ql); |
| 2528 | NEXTL(ql); |
| 2529 | r = CUR_CHAR(rl); |
| 2530 | NEXTL(rl); |
| 2531 | cur = CUR_CHAR(l); |
| 2532 | len = 0; |
| 2533 | while (IS_CHAR(cur) && |
| 2534 | ((cur != '>') || |
| 2535 | (r != '-') || (q != '-'))) { |
| 2536 | if (len + 5 >= size) { |
| 2537 | size *= 2; |
| 2538 | buf = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar)); |
| 2539 | if (buf == NULL) { |
| 2540 | xmlGenericError(xmlGenericErrorContext, |
| 2541 | "realloc of %d byte failed\n", size); |
| 2542 | ctxt->instate = state; |
| 2543 | return; |
| 2544 | } |
| 2545 | } |
| 2546 | COPY_BUF(ql,buf,len,q); |
| 2547 | q = r; |
| 2548 | ql = rl; |
| 2549 | r = cur; |
| 2550 | rl = l; |
| 2551 | NEXTL(l); |
| 2552 | cur = CUR_CHAR(l); |
| 2553 | if (cur == 0) { |
| 2554 | SHRINK; |
| 2555 | GROW; |
| 2556 | cur = CUR_CHAR(l); |
| 2557 | } |
| 2558 | } |
| 2559 | buf[len] = 0; |
| 2560 | if (!IS_CHAR(cur)) { |
| 2561 | ctxt->errNo = XML_ERR_COMMENT_NOT_FINISHED; |
| 2562 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2563 | ctxt->sax->error(ctxt->userData, |
| 2564 | "Comment not terminated \n<!--%.50s\n", buf); |
| 2565 | ctxt->wellFormed = 0; |
| 2566 | xmlFree(buf); |
| 2567 | } else { |
| 2568 | NEXT; |
| 2569 | if ((ctxt->sax != NULL) && (ctxt->sax->comment != NULL) && |
| 2570 | (!ctxt->disableSAX)) |
| 2571 | ctxt->sax->comment(ctxt->userData, buf); |
| 2572 | xmlFree(buf); |
| 2573 | } |
| 2574 | ctxt->instate = state; |
| 2575 | } |
| 2576 | |
| 2577 | /** |
| 2578 | * htmlParseCharRef: |
| 2579 | * @ctxt: an HTML parser context |
| 2580 | * |
| 2581 | * parse Reference declarations |
| 2582 | * |
| 2583 | * [66] CharRef ::= '&#' [0-9]+ ';' | |
| 2584 | * '&#x' [0-9a-fA-F]+ ';' |
| 2585 | * |
| 2586 | * Returns the value parsed (as an int) |
| 2587 | */ |
| 2588 | int |
| 2589 | htmlParseCharRef(htmlParserCtxtPtr ctxt) { |
| 2590 | int val = 0; |
| 2591 | |
| 2592 | if ((CUR == '&') && (NXT(1) == '#') && |
| 2593 | (NXT(2) == 'x')) { |
| 2594 | SKIP(3); |
| 2595 | while (CUR != ';') { |
| 2596 | if ((CUR >= '0') && (CUR <= '9')) |
| 2597 | val = val * 16 + (CUR - '0'); |
| 2598 | else if ((CUR >= 'a') && (CUR <= 'f')) |
| 2599 | val = val * 16 + (CUR - 'a') + 10; |
| 2600 | else if ((CUR >= 'A') && (CUR <= 'F')) |
| 2601 | val = val * 16 + (CUR - 'A') + 10; |
| 2602 | else { |
| 2603 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2604 | ctxt->sax->error(ctxt->userData, |
| 2605 | "htmlParseCharRef: invalid hexadecimal value\n"); |
| 2606 | ctxt->wellFormed = 0; |
| 2607 | return(0); |
| 2608 | } |
| 2609 | NEXT; |
| 2610 | } |
| 2611 | if (CUR == ';') |
| 2612 | NEXT; |
| 2613 | } else if ((CUR == '&') && (NXT(1) == '#')) { |
| 2614 | SKIP(2); |
| 2615 | while (CUR != ';') { |
| 2616 | if ((CUR >= '0') && (CUR <= '9')) |
| 2617 | val = val * 10 + (CUR - '0'); |
| 2618 | else { |
| 2619 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2620 | ctxt->sax->error(ctxt->userData, |
| 2621 | "htmlParseCharRef: invalid decimal value\n"); |
| 2622 | ctxt->wellFormed = 0; |
| 2623 | return(0); |
| 2624 | } |
| 2625 | NEXT; |
| 2626 | } |
| 2627 | if (CUR == ';') |
| 2628 | NEXT; |
| 2629 | } else { |
| 2630 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2631 | ctxt->sax->error(ctxt->userData, "htmlParseCharRef: invalid value\n"); |
| 2632 | ctxt->wellFormed = 0; |
| 2633 | } |
| 2634 | /* |
| 2635 | * Check the value IS_CHAR ... |
| 2636 | */ |
| 2637 | if (IS_CHAR(val)) { |
| 2638 | return(val); |
| 2639 | } else { |
| 2640 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2641 | ctxt->sax->error(ctxt->userData, "htmlParseCharRef: invalid xmlChar value %d\n", |
| 2642 | val); |
| 2643 | ctxt->wellFormed = 0; |
| 2644 | } |
| 2645 | return(0); |
| 2646 | } |
| 2647 | |
| 2648 | |
| 2649 | /** |
| 2650 | * htmlParseDocTypeDecl : |
| 2651 | * @ctxt: an HTML parser context |
| 2652 | * |
| 2653 | * parse a DOCTYPE declaration |
| 2654 | * |
| 2655 | * [28] doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S? |
| 2656 | * ('[' (markupdecl | PEReference | S)* ']' S?)? '>' |
| 2657 | */ |
| 2658 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2659 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2660 | htmlParseDocTypeDecl(htmlParserCtxtPtr ctxt) { |
| 2661 | xmlChar *name; |
| 2662 | xmlChar *ExternalID = NULL; |
| 2663 | xmlChar *URI = NULL; |
| 2664 | |
| 2665 | /* |
| 2666 | * We know that '<!DOCTYPE' has been detected. |
| 2667 | */ |
| 2668 | SKIP(9); |
| 2669 | |
| 2670 | SKIP_BLANKS; |
| 2671 | |
| 2672 | /* |
| 2673 | * Parse the DOCTYPE name. |
| 2674 | */ |
| 2675 | name = htmlParseName(ctxt); |
| 2676 | if (name == NULL) { |
| 2677 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2678 | ctxt->sax->error(ctxt->userData, "htmlParseDocTypeDecl : no DOCTYPE name !\n"); |
| 2679 | ctxt->wellFormed = 0; |
| 2680 | } |
| 2681 | /* |
| 2682 | * Check that upper(name) == "HTML" !!!!!!!!!!!!! |
| 2683 | */ |
| 2684 | |
| 2685 | SKIP_BLANKS; |
| 2686 | |
| 2687 | /* |
| 2688 | * Check for SystemID and ExternalID |
| 2689 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2690 | URI = htmlParseExternalID(ctxt, &ExternalID); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2691 | SKIP_BLANKS; |
| 2692 | |
| 2693 | /* |
| 2694 | * We should be at the end of the DOCTYPE declaration. |
| 2695 | */ |
| 2696 | if (CUR != '>') { |
| 2697 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
Daniel Veillard | f6ed8bc | 2001-10-02 09:22:47 +0000 | [diff] [blame] | 2698 | ctxt->sax->error(ctxt->userData, "DOCTYPE improperly terminated\n"); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2699 | ctxt->wellFormed = 0; |
| 2700 | /* We shouldn't try to resynchronize ... */ |
| 2701 | } |
| 2702 | NEXT; |
| 2703 | |
| 2704 | /* |
| 2705 | * Create or update the document accordingly to the DOCTYPE |
| 2706 | */ |
| 2707 | if ((ctxt->sax != NULL) && (ctxt->sax->internalSubset != NULL) && |
| 2708 | (!ctxt->disableSAX)) |
| 2709 | ctxt->sax->internalSubset(ctxt->userData, name, ExternalID, URI); |
| 2710 | |
| 2711 | /* |
| 2712 | * Cleanup, since we don't use all those identifiers |
| 2713 | */ |
| 2714 | if (URI != NULL) xmlFree(URI); |
| 2715 | if (ExternalID != NULL) xmlFree(ExternalID); |
| 2716 | if (name != NULL) xmlFree(name); |
| 2717 | } |
| 2718 | |
| 2719 | /** |
| 2720 | * htmlParseAttribute: |
| 2721 | * @ctxt: an HTML parser context |
| 2722 | * @value: a xmlChar ** used to store the value of the attribute |
| 2723 | * |
| 2724 | * parse an attribute |
| 2725 | * |
| 2726 | * [41] Attribute ::= Name Eq AttValue |
| 2727 | * |
| 2728 | * [25] Eq ::= S? '=' S? |
| 2729 | * |
| 2730 | * With namespace: |
| 2731 | * |
| 2732 | * [NS 11] Attribute ::= QName Eq AttValue |
| 2733 | * |
| 2734 | * Also the case QName == xmlns:??? is handled independently as a namespace |
| 2735 | * definition. |
| 2736 | * |
| 2737 | * Returns the attribute name, and the value in *value. |
| 2738 | */ |
| 2739 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2740 | static xmlChar * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2741 | htmlParseAttribute(htmlParserCtxtPtr ctxt, xmlChar **value) { |
| 2742 | xmlChar *name, *val = NULL; |
| 2743 | |
| 2744 | *value = NULL; |
| 2745 | name = htmlParseHTMLName(ctxt); |
| 2746 | if (name == NULL) { |
| 2747 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2748 | ctxt->sax->error(ctxt->userData, "error parsing attribute name\n"); |
| 2749 | ctxt->wellFormed = 0; |
| 2750 | return(NULL); |
| 2751 | } |
| 2752 | |
| 2753 | /* |
| 2754 | * read the value |
| 2755 | */ |
| 2756 | SKIP_BLANKS; |
| 2757 | if (CUR == '=') { |
| 2758 | NEXT; |
| 2759 | SKIP_BLANKS; |
| 2760 | val = htmlParseAttValue(ctxt); |
| 2761 | /****** |
| 2762 | } else { |
| 2763 | * TODO : some attribute must have values, some may not |
| 2764 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2765 | ctxt->sax->warning(ctxt->userData, |
| 2766 | "No value for attribute %s\n", name); */ |
| 2767 | } |
| 2768 | |
| 2769 | *value = val; |
| 2770 | return(name); |
| 2771 | } |
| 2772 | |
| 2773 | /** |
| 2774 | * htmlCheckEncoding: |
| 2775 | * @ctxt: an HTML parser context |
| 2776 | * @attvalue: the attribute value |
| 2777 | * |
| 2778 | * Checks an http-equiv attribute from a Meta tag to detect |
| 2779 | * the encoding |
| 2780 | * If a new encoding is detected the parser is switched to decode |
| 2781 | * it and pass UTF8 |
| 2782 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2783 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2784 | htmlCheckEncoding(htmlParserCtxtPtr ctxt, const xmlChar *attvalue) { |
| 2785 | const xmlChar *encoding; |
| 2786 | |
| 2787 | if ((ctxt == NULL) || (attvalue == NULL)) |
| 2788 | return; |
| 2789 | |
| 2790 | /* do not change encoding */ |
| 2791 | if (ctxt->input->encoding != NULL) |
| 2792 | return; |
| 2793 | |
| 2794 | encoding = xmlStrcasestr(attvalue, BAD_CAST"charset="); |
| 2795 | if (encoding != NULL) { |
| 2796 | encoding += 8; |
| 2797 | } else { |
| 2798 | encoding = xmlStrcasestr(attvalue, BAD_CAST"charset ="); |
| 2799 | if (encoding != NULL) |
| 2800 | encoding += 9; |
| 2801 | } |
| 2802 | if (encoding != NULL) { |
| 2803 | xmlCharEncoding enc; |
| 2804 | xmlCharEncodingHandlerPtr handler; |
| 2805 | |
| 2806 | while ((*encoding == ' ') || (*encoding == '\t')) encoding++; |
| 2807 | |
| 2808 | if (ctxt->input->encoding != NULL) |
| 2809 | xmlFree((xmlChar *) ctxt->input->encoding); |
| 2810 | ctxt->input->encoding = xmlStrdup(encoding); |
| 2811 | |
| 2812 | enc = xmlParseCharEncoding((const char *) encoding); |
| 2813 | /* |
| 2814 | * registered set of known encodings |
| 2815 | */ |
| 2816 | if (enc != XML_CHAR_ENCODING_ERROR) { |
| 2817 | xmlSwitchEncoding(ctxt, enc); |
| 2818 | ctxt->charset = XML_CHAR_ENCODING_UTF8; |
| 2819 | } else { |
| 2820 | /* |
| 2821 | * fallback for unknown encodings |
| 2822 | */ |
| 2823 | handler = xmlFindCharEncodingHandler((const char *) encoding); |
| 2824 | if (handler != NULL) { |
| 2825 | xmlSwitchToEncoding(ctxt, handler); |
| 2826 | ctxt->charset = XML_CHAR_ENCODING_UTF8; |
| 2827 | } else { |
| 2828 | ctxt->errNo = XML_ERR_UNSUPPORTED_ENCODING; |
| 2829 | } |
| 2830 | } |
| 2831 | |
| 2832 | if ((ctxt->input->buf != NULL) && |
| 2833 | (ctxt->input->buf->encoder != NULL) && |
| 2834 | (ctxt->input->buf->raw != NULL) && |
| 2835 | (ctxt->input->buf->buffer != NULL)) { |
| 2836 | int nbchars; |
| 2837 | int processed; |
| 2838 | |
| 2839 | /* |
| 2840 | * convert as much as possible to the parser reading buffer. |
| 2841 | */ |
| 2842 | processed = ctxt->input->cur - ctxt->input->base; |
| 2843 | xmlBufferShrink(ctxt->input->buf->buffer, processed); |
| 2844 | nbchars = xmlCharEncInFunc(ctxt->input->buf->encoder, |
| 2845 | ctxt->input->buf->buffer, |
| 2846 | ctxt->input->buf->raw); |
| 2847 | if (nbchars < 0) { |
| 2848 | ctxt->errNo = XML_ERR_INVALID_ENCODING; |
| 2849 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2850 | ctxt->sax->error(ctxt->userData, |
| 2851 | "htmlCheckEncoding: encoder error\n"); |
| 2852 | } |
| 2853 | ctxt->input->base = |
| 2854 | ctxt->input->cur = ctxt->input->buf->buffer->content; |
| 2855 | } |
| 2856 | } |
| 2857 | } |
| 2858 | |
| 2859 | /** |
| 2860 | * htmlCheckMeta: |
| 2861 | * @ctxt: an HTML parser context |
| 2862 | * @atts: the attributes values |
| 2863 | * |
| 2864 | * Checks an attributes from a Meta tag |
| 2865 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2866 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2867 | htmlCheckMeta(htmlParserCtxtPtr ctxt, const xmlChar **atts) { |
| 2868 | int i; |
| 2869 | const xmlChar *att, *value; |
| 2870 | int http = 0; |
| 2871 | const xmlChar *content = NULL; |
| 2872 | |
| 2873 | if ((ctxt == NULL) || (atts == NULL)) |
| 2874 | return; |
| 2875 | |
| 2876 | i = 0; |
| 2877 | att = atts[i++]; |
| 2878 | while (att != NULL) { |
| 2879 | value = atts[i++]; |
| 2880 | if ((value != NULL) && (!xmlStrcasecmp(att, BAD_CAST"http-equiv")) |
| 2881 | && (!xmlStrcasecmp(value, BAD_CAST"Content-Type"))) |
| 2882 | http = 1; |
| 2883 | else if ((value != NULL) && (!xmlStrcasecmp(att, BAD_CAST"content"))) |
| 2884 | content = value; |
| 2885 | att = atts[i++]; |
| 2886 | } |
| 2887 | if ((http) && (content != NULL)) |
| 2888 | htmlCheckEncoding(ctxt, content); |
| 2889 | |
| 2890 | } |
| 2891 | |
| 2892 | /** |
| 2893 | * htmlParseStartTag: |
| 2894 | * @ctxt: an HTML parser context |
| 2895 | * |
| 2896 | * parse a start of tag either for rule element or |
| 2897 | * EmptyElement. In both case we don't parse the tag closing chars. |
| 2898 | * |
| 2899 | * [40] STag ::= '<' Name (S Attribute)* S? '>' |
| 2900 | * |
| 2901 | * [44] EmptyElemTag ::= '<' Name (S Attribute)* S? '/>' |
| 2902 | * |
| 2903 | * With namespace: |
| 2904 | * |
| 2905 | * [NS 8] STag ::= '<' QName (S Attribute)* S? '>' |
| 2906 | * |
| 2907 | * [NS 10] EmptyElement ::= '<' QName (S Attribute)* S? '/>' |
| 2908 | * |
| 2909 | */ |
| 2910 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2911 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2912 | htmlParseStartTag(htmlParserCtxtPtr ctxt) { |
| 2913 | xmlChar *name; |
| 2914 | xmlChar *attname; |
| 2915 | xmlChar *attvalue; |
| 2916 | const xmlChar **atts = NULL; |
| 2917 | int nbatts = 0; |
| 2918 | int maxatts = 0; |
| 2919 | int meta = 0; |
| 2920 | int i; |
| 2921 | |
| 2922 | if (CUR != '<') return; |
| 2923 | NEXT; |
| 2924 | |
| 2925 | GROW; |
| 2926 | name = htmlParseHTMLName(ctxt); |
| 2927 | if (name == NULL) { |
| 2928 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2929 | ctxt->sax->error(ctxt->userData, |
| 2930 | "htmlParseStartTag: invalid element name\n"); |
| 2931 | ctxt->wellFormed = 0; |
| 2932 | /* Dump the bogus tag like browsers do */ |
| 2933 | while ((IS_CHAR(CUR)) && (CUR != '>')) |
| 2934 | NEXT; |
| 2935 | return; |
| 2936 | } |
| 2937 | if (xmlStrEqual(name, BAD_CAST"meta")) |
| 2938 | meta = 1; |
| 2939 | |
| 2940 | /* |
| 2941 | * Check for auto-closure of HTML elements. |
| 2942 | */ |
| 2943 | htmlAutoClose(ctxt, name); |
| 2944 | |
| 2945 | /* |
| 2946 | * Check for implied HTML elements. |
| 2947 | */ |
| 2948 | htmlCheckImplied(ctxt, name); |
| 2949 | |
| 2950 | /* |
| 2951 | * Avoid html at any level > 0, head at any level != 1 |
| 2952 | * or any attempt to recurse body |
| 2953 | */ |
| 2954 | if ((ctxt->nameNr > 0) && (xmlStrEqual(name, BAD_CAST"html"))) { |
| 2955 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2956 | ctxt->sax->error(ctxt->userData, |
| 2957 | "htmlParseStartTag: misplaced <html> tag\n"); |
| 2958 | ctxt->wellFormed = 0; |
| 2959 | xmlFree(name); |
| 2960 | return; |
| 2961 | } |
| 2962 | if ((ctxt->nameNr != 1) && |
| 2963 | (xmlStrEqual(name, BAD_CAST"head"))) { |
| 2964 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2965 | ctxt->sax->error(ctxt->userData, |
| 2966 | "htmlParseStartTag: misplaced <head> tag\n"); |
| 2967 | ctxt->wellFormed = 0; |
| 2968 | xmlFree(name); |
| 2969 | return; |
| 2970 | } |
| 2971 | if (xmlStrEqual(name, BAD_CAST"body")) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2972 | int indx; |
| 2973 | for (indx = 0;indx < ctxt->nameNr;indx++) { |
| 2974 | if (xmlStrEqual(ctxt->nameTab[indx], BAD_CAST"body")) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2975 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 2976 | ctxt->sax->error(ctxt->userData, |
| 2977 | "htmlParseStartTag: misplaced <body> tag\n"); |
| 2978 | ctxt->wellFormed = 0; |
| 2979 | xmlFree(name); |
| 2980 | return; |
| 2981 | } |
| 2982 | } |
| 2983 | } |
| 2984 | |
| 2985 | /* |
| 2986 | * Now parse the attributes, it ends up with the ending |
| 2987 | * |
| 2988 | * (S Attribute)* S? |
| 2989 | */ |
| 2990 | SKIP_BLANKS; |
| 2991 | while ((IS_CHAR(CUR)) && |
| 2992 | (CUR != '>') && |
| 2993 | ((CUR != '/') || (NXT(1) != '>'))) { |
| 2994 | long cons = ctxt->nbChars; |
| 2995 | |
| 2996 | GROW; |
| 2997 | attname = htmlParseAttribute(ctxt, &attvalue); |
| 2998 | if (attname != NULL) { |
| 2999 | |
| 3000 | /* |
| 3001 | * Well formedness requires at most one declaration of an attribute |
| 3002 | */ |
| 3003 | for (i = 0; i < nbatts;i += 2) { |
| 3004 | if (xmlStrEqual(atts[i], attname)) { |
| 3005 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 3006 | ctxt->sax->error(ctxt->userData, |
| 3007 | "Attribute %s redefined\n", |
| 3008 | attname); |
| 3009 | ctxt->wellFormed = 0; |
| 3010 | xmlFree(attname); |
| 3011 | if (attvalue != NULL) |
| 3012 | xmlFree(attvalue); |
| 3013 | goto failed; |
| 3014 | } |
| 3015 | } |
| 3016 | |
| 3017 | /* |
| 3018 | * Add the pair to atts |
| 3019 | */ |
| 3020 | if (atts == NULL) { |
| 3021 | maxatts = 10; |
| 3022 | atts = (const xmlChar **) xmlMalloc(maxatts * sizeof(xmlChar *)); |
| 3023 | if (atts == NULL) { |
| 3024 | xmlGenericError(xmlGenericErrorContext, |
| 3025 | "malloc of %ld byte failed\n", |
| 3026 | maxatts * (long)sizeof(xmlChar *)); |
| 3027 | if (name != NULL) xmlFree(name); |
| 3028 | return; |
| 3029 | } |
| 3030 | } else if (nbatts + 4 > maxatts) { |
| 3031 | maxatts *= 2; |
| 3032 | atts = (const xmlChar **) xmlRealloc((void *) atts, |
| 3033 | maxatts * sizeof(xmlChar *)); |
| 3034 | if (atts == NULL) { |
| 3035 | xmlGenericError(xmlGenericErrorContext, |
| 3036 | "realloc of %ld byte failed\n", |
| 3037 | maxatts * (long)sizeof(xmlChar *)); |
| 3038 | if (name != NULL) xmlFree(name); |
| 3039 | return; |
| 3040 | } |
| 3041 | } |
| 3042 | atts[nbatts++] = attname; |
| 3043 | atts[nbatts++] = attvalue; |
| 3044 | atts[nbatts] = NULL; |
| 3045 | atts[nbatts + 1] = NULL; |
| 3046 | } |
| 3047 | else { |
| 3048 | /* Dump the bogus attribute string up to the next blank or |
| 3049 | * the end of the tag. */ |
Daniel Veillard | 561b7f8 | 2002-03-20 21:55:57 +0000 | [diff] [blame] | 3050 | while ((IS_CHAR(CUR)) && !(IS_BLANK(CUR)) && (CUR != '>') |
| 3051 | && ((CUR != '/') || (NXT(1) != '>'))) |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3052 | NEXT; |
| 3053 | } |
| 3054 | |
| 3055 | failed: |
| 3056 | SKIP_BLANKS; |
| 3057 | if (cons == ctxt->nbChars) { |
| 3058 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 3059 | ctxt->sax->error(ctxt->userData, |
| 3060 | "htmlParseStartTag: problem parsing attributes\n"); |
| 3061 | ctxt->wellFormed = 0; |
| 3062 | break; |
| 3063 | } |
| 3064 | } |
| 3065 | |
| 3066 | /* |
| 3067 | * Handle specific association to the META tag |
| 3068 | */ |
| 3069 | if (meta) |
| 3070 | htmlCheckMeta(ctxt, atts); |
| 3071 | |
| 3072 | /* |
| 3073 | * SAX: Start of Element ! |
| 3074 | */ |
| 3075 | htmlnamePush(ctxt, xmlStrdup(name)); |
| 3076 | #ifdef DEBUG |
| 3077 | xmlGenericError(xmlGenericErrorContext,"Start of element %s: pushed %s\n", name, ctxt->name); |
| 3078 | #endif |
| 3079 | if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) |
| 3080 | ctxt->sax->startElement(ctxt->userData, name, atts); |
| 3081 | |
| 3082 | if (atts != NULL) { |
| 3083 | for (i = 0;i < nbatts;i++) { |
| 3084 | if (atts[i] != NULL) |
| 3085 | xmlFree((xmlChar *) atts[i]); |
| 3086 | } |
| 3087 | xmlFree((void *) atts); |
| 3088 | } |
| 3089 | if (name != NULL) xmlFree(name); |
| 3090 | } |
| 3091 | |
| 3092 | /** |
| 3093 | * htmlParseEndTag: |
| 3094 | * @ctxt: an HTML parser context |
| 3095 | * |
| 3096 | * parse an end of tag |
| 3097 | * |
| 3098 | * [42] ETag ::= '</' Name S? '>' |
| 3099 | * |
| 3100 | * With namespace |
| 3101 | * |
| 3102 | * [NS 9] ETag ::= '</' QName S? '>' |
Daniel Veillard | f420ac5 | 2001-07-04 16:04:09 +0000 | [diff] [blame] | 3103 | * |
| 3104 | * Returns 1 if the current level should be closed. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3105 | */ |
| 3106 | |
Daniel Veillard | f420ac5 | 2001-07-04 16:04:09 +0000 | [diff] [blame] | 3107 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3108 | htmlParseEndTag(htmlParserCtxtPtr ctxt) { |
| 3109 | xmlChar *name; |
| 3110 | xmlChar *oldname; |
Daniel Veillard | f420ac5 | 2001-07-04 16:04:09 +0000 | [diff] [blame] | 3111 | int i, ret; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3112 | |
| 3113 | if ((CUR != '<') || (NXT(1) != '/')) { |
| 3114 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 3115 | ctxt->sax->error(ctxt->userData, "htmlParseEndTag: '</' not found\n"); |
| 3116 | ctxt->wellFormed = 0; |
Daniel Veillard | f420ac5 | 2001-07-04 16:04:09 +0000 | [diff] [blame] | 3117 | return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3118 | } |
| 3119 | SKIP(2); |
| 3120 | |
| 3121 | name = htmlParseHTMLName(ctxt); |
Daniel Veillard | f420ac5 | 2001-07-04 16:04:09 +0000 | [diff] [blame] | 3122 | if (name == NULL) return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3123 | |
| 3124 | /* |
| 3125 | * We should definitely be at the ending "S? '>'" part |
| 3126 | */ |
| 3127 | SKIP_BLANKS; |
| 3128 | if ((!IS_CHAR(CUR)) || (CUR != '>')) { |
| 3129 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 3130 | ctxt->sax->error(ctxt->userData, "End tag : expected '>'\n"); |
| 3131 | ctxt->wellFormed = 0; |
| 3132 | } else |
| 3133 | NEXT; |
| 3134 | |
| 3135 | /* |
| 3136 | * If the name read is not one of the element in the parsing stack |
| 3137 | * then return, it's just an error. |
| 3138 | */ |
| 3139 | for (i = (ctxt->nameNr - 1);i >= 0;i--) { |
| 3140 | if (xmlStrEqual(name, ctxt->nameTab[i])) break; |
| 3141 | } |
| 3142 | if (i < 0) { |
| 3143 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 3144 | ctxt->sax->error(ctxt->userData, |
| 3145 | "Unexpected end tag : %s\n", name); |
| 3146 | xmlFree(name); |
| 3147 | ctxt->wellFormed = 0; |
Daniel Veillard | f420ac5 | 2001-07-04 16:04:09 +0000 | [diff] [blame] | 3148 | return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3149 | } |
| 3150 | |
| 3151 | |
| 3152 | /* |
| 3153 | * Check for auto-closure of HTML elements. |
| 3154 | */ |
| 3155 | |
| 3156 | htmlAutoCloseOnClose(ctxt, name); |
| 3157 | |
| 3158 | /* |
| 3159 | * Well formedness constraints, opening and closing must match. |
| 3160 | * With the exception that the autoclose may have popped stuff out |
| 3161 | * of the stack. |
| 3162 | */ |
| 3163 | if (!xmlStrEqual(name, ctxt->name)) { |
| 3164 | #ifdef DEBUG |
| 3165 | xmlGenericError(xmlGenericErrorContext,"End of tag %s: expecting %s\n", name, ctxt->name); |
| 3166 | #endif |
| 3167 | if ((ctxt->name != NULL) && |
| 3168 | (!xmlStrEqual(ctxt->name, name))) { |
| 3169 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 3170 | ctxt->sax->error(ctxt->userData, |
| 3171 | "Opening and ending tag mismatch: %s and %s\n", |
| 3172 | name, ctxt->name); |
| 3173 | ctxt->wellFormed = 0; |
| 3174 | } |
| 3175 | } |
| 3176 | |
| 3177 | /* |
| 3178 | * SAX: End of Tag |
| 3179 | */ |
| 3180 | oldname = ctxt->name; |
| 3181 | if ((oldname != NULL) && (xmlStrEqual(oldname, name))) { |
| 3182 | if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) |
| 3183 | ctxt->sax->endElement(ctxt->userData, name); |
| 3184 | oldname = htmlnamePop(ctxt); |
| 3185 | if (oldname != NULL) { |
| 3186 | #ifdef DEBUG |
| 3187 | xmlGenericError(xmlGenericErrorContext,"End of tag %s: popping out %s\n", name, oldname); |
| 3188 | #endif |
| 3189 | xmlFree(oldname); |
| 3190 | #ifdef DEBUG |
| 3191 | } else { |
| 3192 | xmlGenericError(xmlGenericErrorContext,"End of tag %s: stack empty !!!\n", name); |
| 3193 | #endif |
| 3194 | } |
Daniel Veillard | f420ac5 | 2001-07-04 16:04:09 +0000 | [diff] [blame] | 3195 | ret = 1; |
| 3196 | } else { |
| 3197 | ret = 0; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3198 | } |
| 3199 | |
| 3200 | if (name != NULL) |
| 3201 | xmlFree(name); |
| 3202 | |
Daniel Veillard | f420ac5 | 2001-07-04 16:04:09 +0000 | [diff] [blame] | 3203 | return(ret); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3204 | } |
| 3205 | |
| 3206 | |
| 3207 | /** |
| 3208 | * htmlParseReference: |
| 3209 | * @ctxt: an HTML parser context |
| 3210 | * |
| 3211 | * parse and handle entity references in content, |
| 3212 | * this will end-up in a call to character() since this is either a |
| 3213 | * CharRef, or a predefined entity. |
| 3214 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 3215 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3216 | htmlParseReference(htmlParserCtxtPtr ctxt) { |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 3217 | const htmlEntityDesc * ent; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3218 | xmlChar out[6]; |
| 3219 | xmlChar *name; |
| 3220 | if (CUR != '&') return; |
| 3221 | |
| 3222 | if (NXT(1) == '#') { |
| 3223 | unsigned int c; |
| 3224 | int bits, i = 0; |
| 3225 | |
| 3226 | c = htmlParseCharRef(ctxt); |
| 3227 | if (c == 0) |
| 3228 | return; |
| 3229 | |
| 3230 | if (c < 0x80) { out[i++]= c; bits= -6; } |
| 3231 | else if (c < 0x800) { out[i++]=((c >> 6) & 0x1F) | 0xC0; bits= 0; } |
| 3232 | else if (c < 0x10000) { out[i++]=((c >> 12) & 0x0F) | 0xE0; bits= 6; } |
| 3233 | else { out[i++]=((c >> 18) & 0x07) | 0xF0; bits= 12; } |
| 3234 | |
| 3235 | for ( ; bits >= 0; bits-= 6) { |
| 3236 | out[i++]= ((c >> bits) & 0x3F) | 0x80; |
| 3237 | } |
| 3238 | out[i] = 0; |
| 3239 | |
| 3240 | htmlCheckParagraph(ctxt); |
| 3241 | if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL)) |
| 3242 | ctxt->sax->characters(ctxt->userData, out, i); |
| 3243 | } else { |
| 3244 | ent = htmlParseEntityRef(ctxt, &name); |
| 3245 | if (name == NULL) { |
| 3246 | htmlCheckParagraph(ctxt); |
| 3247 | if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL)) |
| 3248 | ctxt->sax->characters(ctxt->userData, BAD_CAST "&", 1); |
| 3249 | return; |
| 3250 | } |
| 3251 | if ((ent == NULL) || (ent->value <= 0)) { |
| 3252 | htmlCheckParagraph(ctxt); |
| 3253 | if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL)) { |
| 3254 | ctxt->sax->characters(ctxt->userData, BAD_CAST "&", 1); |
| 3255 | ctxt->sax->characters(ctxt->userData, name, xmlStrlen(name)); |
| 3256 | /* ctxt->sax->characters(ctxt->userData, BAD_CAST ";", 1); */ |
| 3257 | } |
| 3258 | } else { |
| 3259 | unsigned int c; |
| 3260 | int bits, i = 0; |
| 3261 | |
| 3262 | c = ent->value; |
| 3263 | if (c < 0x80) |
| 3264 | { out[i++]= c; bits= -6; } |
| 3265 | else if (c < 0x800) |
| 3266 | { out[i++]=((c >> 6) & 0x1F) | 0xC0; bits= 0; } |
| 3267 | else if (c < 0x10000) |
| 3268 | { out[i++]=((c >> 12) & 0x0F) | 0xE0; bits= 6; } |
| 3269 | else |
| 3270 | { out[i++]=((c >> 18) & 0x07) | 0xF0; bits= 12; } |
| 3271 | |
| 3272 | for ( ; bits >= 0; bits-= 6) { |
| 3273 | out[i++]= ((c >> bits) & 0x3F) | 0x80; |
| 3274 | } |
| 3275 | out[i] = 0; |
| 3276 | |
| 3277 | htmlCheckParagraph(ctxt); |
| 3278 | if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL)) |
| 3279 | ctxt->sax->characters(ctxt->userData, out, i); |
| 3280 | } |
| 3281 | xmlFree(name); |
| 3282 | } |
| 3283 | } |
| 3284 | |
| 3285 | /** |
| 3286 | * htmlParseContent: |
| 3287 | * @ctxt: an HTML parser context |
| 3288 | * @name: the node name |
| 3289 | * |
| 3290 | * Parse a content: comment, sub-element, reference or text. |
| 3291 | * |
| 3292 | */ |
| 3293 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 3294 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3295 | htmlParseContent(htmlParserCtxtPtr ctxt) { |
| 3296 | xmlChar *currentNode; |
| 3297 | int depth; |
| 3298 | |
| 3299 | currentNode = xmlStrdup(ctxt->name); |
| 3300 | depth = ctxt->nameNr; |
| 3301 | while (1) { |
| 3302 | long cons = ctxt->nbChars; |
| 3303 | |
| 3304 | GROW; |
| 3305 | /* |
| 3306 | * Our tag or one of it's parent or children is ending. |
| 3307 | */ |
| 3308 | if ((CUR == '<') && (NXT(1) == '/')) { |
Daniel Veillard | f420ac5 | 2001-07-04 16:04:09 +0000 | [diff] [blame] | 3309 | if (htmlParseEndTag(ctxt) && |
| 3310 | ((currentNode != NULL) || (ctxt->nameNr == 0))) { |
| 3311 | if (currentNode != NULL) |
| 3312 | xmlFree(currentNode); |
| 3313 | return; |
| 3314 | } |
| 3315 | continue; /* while */ |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3316 | } |
| 3317 | |
| 3318 | /* |
| 3319 | * Has this node been popped out during parsing of |
| 3320 | * the next element |
| 3321 | */ |
Daniel Veillard | f420ac5 | 2001-07-04 16:04:09 +0000 | [diff] [blame] | 3322 | if ((ctxt->nameNr > 0) && (depth >= ctxt->nameNr) && |
| 3323 | (!xmlStrEqual(currentNode, ctxt->name))) |
| 3324 | { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3325 | if (currentNode != NULL) xmlFree(currentNode); |
| 3326 | return; |
| 3327 | } |
| 3328 | |
Daniel Veillard | f9533d1 | 2001-03-03 10:04:57 +0000 | [diff] [blame] | 3329 | if ((CUR != 0) && ((xmlStrEqual(currentNode, BAD_CAST"script")) || |
| 3330 | (xmlStrEqual(currentNode, BAD_CAST"style")))) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3331 | /* |
| 3332 | * Handle SCRIPT/STYLE separately |
| 3333 | */ |
| 3334 | htmlParseScript(ctxt); |
| 3335 | } else { |
| 3336 | /* |
| 3337 | * Sometimes DOCTYPE arrives in the middle of the document |
| 3338 | */ |
| 3339 | if ((CUR == '<') && (NXT(1) == '!') && |
| 3340 | (UPP(2) == 'D') && (UPP(3) == 'O') && |
| 3341 | (UPP(4) == 'C') && (UPP(5) == 'T') && |
| 3342 | (UPP(6) == 'Y') && (UPP(7) == 'P') && |
| 3343 | (UPP(8) == 'E')) { |
| 3344 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 3345 | ctxt->sax->error(ctxt->userData, |
| 3346 | "Misplaced DOCTYPE declaration\n"); |
| 3347 | ctxt->wellFormed = 0; |
| 3348 | htmlParseDocTypeDecl(ctxt); |
| 3349 | } |
| 3350 | |
| 3351 | /* |
| 3352 | * First case : a comment |
| 3353 | */ |
| 3354 | if ((CUR == '<') && (NXT(1) == '!') && |
| 3355 | (NXT(2) == '-') && (NXT(3) == '-')) { |
| 3356 | htmlParseComment(ctxt); |
| 3357 | } |
| 3358 | |
| 3359 | /* |
| 3360 | * Second case : a sub-element. |
| 3361 | */ |
| 3362 | else if (CUR == '<') { |
| 3363 | htmlParseElement(ctxt); |
| 3364 | } |
| 3365 | |
| 3366 | /* |
| 3367 | * Third case : a reference. If if has not been resolved, |
| 3368 | * parsing returns it's Name, create the node |
| 3369 | */ |
| 3370 | else if (CUR == '&') { |
| 3371 | htmlParseReference(ctxt); |
| 3372 | } |
| 3373 | |
| 3374 | /* |
| 3375 | * Fourth : end of the resource |
| 3376 | */ |
| 3377 | else if (CUR == 0) { |
Daniel Veillard | a3bfca5 | 2001-04-12 15:42:58 +0000 | [diff] [blame] | 3378 | htmlAutoCloseOnEnd(ctxt); |
| 3379 | break; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3380 | } |
| 3381 | |
| 3382 | /* |
| 3383 | * Last case, text. Note that References are handled directly. |
| 3384 | */ |
| 3385 | else { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 3386 | htmlParseCharData(ctxt); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3387 | } |
| 3388 | |
| 3389 | if (cons == ctxt->nbChars) { |
| 3390 | if (ctxt->node != NULL) { |
| 3391 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 3392 | ctxt->sax->error(ctxt->userData, |
| 3393 | "detected an error in element content\n"); |
| 3394 | ctxt->wellFormed = 0; |
| 3395 | } |
| 3396 | break; |
| 3397 | } |
| 3398 | } |
| 3399 | GROW; |
| 3400 | } |
| 3401 | if (currentNode != NULL) xmlFree(currentNode); |
| 3402 | } |
| 3403 | |
| 3404 | /** |
| 3405 | * htmlParseElement: |
| 3406 | * @ctxt: an HTML parser context |
| 3407 | * |
| 3408 | * parse an HTML element, this is highly recursive |
| 3409 | * |
| 3410 | * [39] element ::= EmptyElemTag | STag content ETag |
| 3411 | * |
| 3412 | * [41] Attribute ::= Name Eq AttValue |
| 3413 | */ |
| 3414 | |
| 3415 | void |
| 3416 | htmlParseElement(htmlParserCtxtPtr ctxt) { |
| 3417 | xmlChar *name; |
| 3418 | xmlChar *currentNode = NULL; |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 3419 | const htmlElemDesc * info; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3420 | htmlParserNodeInfo node_info; |
| 3421 | xmlChar *oldname; |
| 3422 | int depth = ctxt->nameNr; |
Daniel Veillard | 3fbe8e3 | 2001-10-06 13:30:33 +0000 | [diff] [blame] | 3423 | const xmlChar *oldptr; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3424 | |
| 3425 | /* Capture start position */ |
| 3426 | if (ctxt->record_info) { |
| 3427 | node_info.begin_pos = ctxt->input->consumed + |
| 3428 | (CUR_PTR - ctxt->input->base); |
| 3429 | node_info.begin_line = ctxt->input->line; |
| 3430 | } |
| 3431 | |
| 3432 | oldname = xmlStrdup(ctxt->name); |
| 3433 | htmlParseStartTag(ctxt); |
| 3434 | name = ctxt->name; |
| 3435 | #ifdef DEBUG |
| 3436 | if (oldname == NULL) |
| 3437 | xmlGenericError(xmlGenericErrorContext, |
| 3438 | "Start of element %s\n", name); |
| 3439 | else if (name == NULL) |
| 3440 | xmlGenericError(xmlGenericErrorContext, |
| 3441 | "Start of element failed, was %s\n", oldname); |
| 3442 | else |
| 3443 | xmlGenericError(xmlGenericErrorContext, |
| 3444 | "Start of element %s, was %s\n", name, oldname); |
| 3445 | #endif |
| 3446 | if (((depth == ctxt->nameNr) && (xmlStrEqual(oldname, ctxt->name))) || |
| 3447 | (name == NULL)) { |
| 3448 | if (CUR == '>') |
| 3449 | NEXT; |
| 3450 | if (oldname != NULL) |
| 3451 | xmlFree(oldname); |
| 3452 | return; |
| 3453 | } |
| 3454 | if (oldname != NULL) |
| 3455 | xmlFree(oldname); |
| 3456 | |
| 3457 | /* |
| 3458 | * Lookup the info for that element. |
| 3459 | */ |
| 3460 | info = htmlTagLookup(name); |
| 3461 | if (info == NULL) { |
| 3462 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 3463 | ctxt->sax->error(ctxt->userData, "Tag %s invalid\n", |
| 3464 | name); |
| 3465 | ctxt->wellFormed = 0; |
| 3466 | } else if (info->depr) { |
| 3467 | /*************************** |
| 3468 | if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL)) |
| 3469 | ctxt->sax->warning(ctxt->userData, "Tag %s is deprecated\n", |
| 3470 | name); |
| 3471 | ***************************/ |
| 3472 | } |
| 3473 | |
| 3474 | /* |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 3475 | * Check for an Empty Element labeled the XML/SGML way |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3476 | */ |
| 3477 | if ((CUR == '/') && (NXT(1) == '>')) { |
| 3478 | SKIP(2); |
| 3479 | if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) |
| 3480 | ctxt->sax->endElement(ctxt->userData, name); |
| 3481 | oldname = htmlnamePop(ctxt); |
| 3482 | #ifdef DEBUG |
| 3483 | xmlGenericError(xmlGenericErrorContext,"End of tag the XML way: popping out %s\n", oldname); |
| 3484 | #endif |
| 3485 | if (oldname != NULL) |
| 3486 | xmlFree(oldname); |
| 3487 | return; |
| 3488 | } |
| 3489 | |
| 3490 | if (CUR == '>') { |
| 3491 | NEXT; |
| 3492 | } else { |
| 3493 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 3494 | ctxt->sax->error(ctxt->userData, |
| 3495 | "Couldn't find end of Start Tag %s\n", |
| 3496 | name); |
| 3497 | ctxt->wellFormed = 0; |
| 3498 | |
| 3499 | /* |
| 3500 | * end of parsing of this node. |
| 3501 | */ |
| 3502 | if (xmlStrEqual(name, ctxt->name)) { |
| 3503 | nodePop(ctxt); |
| 3504 | oldname = htmlnamePop(ctxt); |
| 3505 | #ifdef DEBUG |
| 3506 | xmlGenericError(xmlGenericErrorContext,"End of start tag problem: popping out %s\n", oldname); |
| 3507 | #endif |
| 3508 | if (oldname != NULL) |
| 3509 | xmlFree(oldname); |
| 3510 | } |
| 3511 | |
| 3512 | /* |
| 3513 | * Capture end position and add node |
| 3514 | */ |
| 3515 | if ( currentNode != NULL && ctxt->record_info ) { |
| 3516 | node_info.end_pos = ctxt->input->consumed + |
| 3517 | (CUR_PTR - ctxt->input->base); |
| 3518 | node_info.end_line = ctxt->input->line; |
| 3519 | node_info.node = ctxt->node; |
| 3520 | xmlParserAddNodeInfo(ctxt, &node_info); |
| 3521 | } |
| 3522 | return; |
| 3523 | } |
| 3524 | |
| 3525 | /* |
| 3526 | * Check for an Empty Element from DTD definition |
| 3527 | */ |
| 3528 | if ((info != NULL) && (info->empty)) { |
| 3529 | if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) |
| 3530 | ctxt->sax->endElement(ctxt->userData, name); |
| 3531 | oldname = htmlnamePop(ctxt); |
| 3532 | #ifdef DEBUG |
| 3533 | xmlGenericError(xmlGenericErrorContext,"End of empty tag %s : popping out %s\n", name, oldname); |
| 3534 | #endif |
| 3535 | if (oldname != NULL) |
| 3536 | xmlFree(oldname); |
| 3537 | return; |
| 3538 | } |
| 3539 | |
| 3540 | /* |
| 3541 | * Parse the content of the element: |
| 3542 | */ |
| 3543 | currentNode = xmlStrdup(ctxt->name); |
| 3544 | depth = ctxt->nameNr; |
| 3545 | while (IS_CHAR(CUR)) { |
William M. Brack | d28e48a | 2001-09-23 01:55:08 +0000 | [diff] [blame] | 3546 | oldptr = ctxt->input->cur; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3547 | htmlParseContent(ctxt); |
William M. Brack | d28e48a | 2001-09-23 01:55:08 +0000 | [diff] [blame] | 3548 | if (oldptr==ctxt->input->cur) break; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3549 | if (ctxt->nameNr < depth) break; |
| 3550 | } |
| 3551 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3552 | /* |
| 3553 | * Capture end position and add node |
| 3554 | */ |
| 3555 | if ( currentNode != NULL && ctxt->record_info ) { |
| 3556 | node_info.end_pos = ctxt->input->consumed + |
| 3557 | (CUR_PTR - ctxt->input->base); |
| 3558 | node_info.end_line = ctxt->input->line; |
| 3559 | node_info.node = ctxt->node; |
| 3560 | xmlParserAddNodeInfo(ctxt, &node_info); |
| 3561 | } |
Daniel Veillard | a3bfca5 | 2001-04-12 15:42:58 +0000 | [diff] [blame] | 3562 | if (!IS_CHAR(CUR)) { |
| 3563 | htmlAutoCloseOnEnd(ctxt); |
| 3564 | } |
| 3565 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3566 | if (currentNode != NULL) |
| 3567 | xmlFree(currentNode); |
| 3568 | } |
| 3569 | |
| 3570 | /** |
| 3571 | * htmlParseDocument : |
| 3572 | * @ctxt: an HTML parser context |
| 3573 | * |
| 3574 | * parse an HTML document (and build a tree if using the standard SAX |
| 3575 | * interface). |
| 3576 | * |
| 3577 | * Returns 0, -1 in case of error. the parser context is augmented |
| 3578 | * as a result of the parsing. |
| 3579 | */ |
| 3580 | |
Daniel Veillard | 1b31e4a | 2002-05-27 14:44:50 +0000 | [diff] [blame] | 3581 | int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3582 | htmlParseDocument(htmlParserCtxtPtr ctxt) { |
| 3583 | xmlDtdPtr dtd; |
| 3584 | |
Daniel Veillard | d046356 | 2001-10-13 09:15:48 +0000 | [diff] [blame] | 3585 | xmlInitParser(); |
| 3586 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3587 | htmlDefaultSAXHandlerInit(); |
| 3588 | ctxt->html = 1; |
| 3589 | |
| 3590 | GROW; |
| 3591 | /* |
| 3592 | * SAX: beginning of the document processing. |
| 3593 | */ |
| 3594 | if ((ctxt->sax) && (ctxt->sax->setDocumentLocator)) |
| 3595 | ctxt->sax->setDocumentLocator(ctxt->userData, &xmlDefaultSAXLocator); |
| 3596 | |
| 3597 | /* |
| 3598 | * Wipe out everything which is before the first '<' |
| 3599 | */ |
| 3600 | SKIP_BLANKS; |
| 3601 | if (CUR == 0) { |
| 3602 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 3603 | ctxt->sax->error(ctxt->userData, "Document is empty\n"); |
| 3604 | ctxt->wellFormed = 0; |
| 3605 | } |
| 3606 | |
| 3607 | if ((ctxt->sax) && (ctxt->sax->startDocument) && (!ctxt->disableSAX)) |
| 3608 | ctxt->sax->startDocument(ctxt->userData); |
| 3609 | |
| 3610 | |
| 3611 | /* |
| 3612 | * Parse possible comments before any content |
| 3613 | */ |
| 3614 | while ((CUR == '<') && (NXT(1) == '!') && |
| 3615 | (NXT(2) == '-') && (NXT(3) == '-')) { |
| 3616 | htmlParseComment(ctxt); |
| 3617 | SKIP_BLANKS; |
| 3618 | } |
| 3619 | |
| 3620 | |
| 3621 | /* |
| 3622 | * Then possibly doc type declaration(s) and more Misc |
| 3623 | * (doctypedecl Misc*)? |
| 3624 | */ |
| 3625 | if ((CUR == '<') && (NXT(1) == '!') && |
| 3626 | (UPP(2) == 'D') && (UPP(3) == 'O') && |
| 3627 | (UPP(4) == 'C') && (UPP(5) == 'T') && |
| 3628 | (UPP(6) == 'Y') && (UPP(7) == 'P') && |
| 3629 | (UPP(8) == 'E')) { |
| 3630 | htmlParseDocTypeDecl(ctxt); |
| 3631 | } |
| 3632 | SKIP_BLANKS; |
| 3633 | |
| 3634 | /* |
| 3635 | * Parse possible comments before any content |
| 3636 | */ |
| 3637 | while ((CUR == '<') && (NXT(1) == '!') && |
| 3638 | (NXT(2) == '-') && (NXT(3) == '-')) { |
| 3639 | htmlParseComment(ctxt); |
| 3640 | SKIP_BLANKS; |
| 3641 | } |
| 3642 | |
| 3643 | /* |
| 3644 | * Time to start parsing the tree itself |
| 3645 | */ |
| 3646 | htmlParseContent(ctxt); |
| 3647 | |
| 3648 | /* |
| 3649 | * autoclose |
| 3650 | */ |
| 3651 | if (CUR == 0) |
Daniel Veillard | a3bfca5 | 2001-04-12 15:42:58 +0000 | [diff] [blame] | 3652 | htmlAutoCloseOnEnd(ctxt); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3653 | |
| 3654 | |
| 3655 | /* |
| 3656 | * SAX: end of the document processing. |
| 3657 | */ |
| 3658 | if ((ctxt->sax) && (ctxt->sax->endDocument != NULL)) |
| 3659 | ctxt->sax->endDocument(ctxt->userData); |
| 3660 | |
| 3661 | if (ctxt->myDoc != NULL) { |
| 3662 | dtd = xmlGetIntSubset(ctxt->myDoc); |
| 3663 | if (dtd == NULL) |
| 3664 | ctxt->myDoc->intSubset = |
| 3665 | xmlCreateIntSubset(ctxt->myDoc, BAD_CAST "HTML", |
| 3666 | BAD_CAST "-//W3C//DTD HTML 4.0 Transitional//EN", |
| 3667 | BAD_CAST "http://www.w3.org/TR/REC-html40/loose.dtd"); |
| 3668 | } |
| 3669 | if (! ctxt->wellFormed) return(-1); |
| 3670 | return(0); |
| 3671 | } |
| 3672 | |
| 3673 | |
| 3674 | /************************************************************************ |
| 3675 | * * |
| 3676 | * Parser contexts handling * |
| 3677 | * * |
| 3678 | ************************************************************************/ |
| 3679 | |
| 3680 | /** |
| 3681 | * xmlInitParserCtxt: |
| 3682 | * @ctxt: an HTML parser context |
| 3683 | * |
| 3684 | * Initialize a parser context |
| 3685 | */ |
| 3686 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 3687 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3688 | htmlInitParserCtxt(htmlParserCtxtPtr ctxt) |
| 3689 | { |
| 3690 | htmlSAXHandler *sax; |
| 3691 | |
| 3692 | if (ctxt == NULL) return; |
| 3693 | memset(ctxt, 0, sizeof(htmlParserCtxt)); |
| 3694 | |
| 3695 | sax = (htmlSAXHandler *) xmlMalloc(sizeof(htmlSAXHandler)); |
| 3696 | if (sax == NULL) { |
| 3697 | xmlGenericError(xmlGenericErrorContext, |
| 3698 | "htmlInitParserCtxt: out of memory\n"); |
| 3699 | } |
| 3700 | else |
| 3701 | memset(sax, 0, sizeof(htmlSAXHandler)); |
| 3702 | |
| 3703 | /* Allocate the Input stack */ |
| 3704 | ctxt->inputTab = (htmlParserInputPtr *) |
| 3705 | xmlMalloc(5 * sizeof(htmlParserInputPtr)); |
| 3706 | if (ctxt->inputTab == NULL) { |
| 3707 | xmlGenericError(xmlGenericErrorContext, |
| 3708 | "htmlInitParserCtxt: out of memory\n"); |
| 3709 | ctxt->inputNr = 0; |
| 3710 | ctxt->inputMax = 0; |
| 3711 | ctxt->input = NULL; |
| 3712 | return; |
| 3713 | } |
| 3714 | ctxt->inputNr = 0; |
| 3715 | ctxt->inputMax = 5; |
| 3716 | ctxt->input = NULL; |
| 3717 | ctxt->version = NULL; |
| 3718 | ctxt->encoding = NULL; |
| 3719 | ctxt->standalone = -1; |
| 3720 | ctxt->instate = XML_PARSER_START; |
| 3721 | |
| 3722 | /* Allocate the Node stack */ |
| 3723 | ctxt->nodeTab = (htmlNodePtr *) xmlMalloc(10 * sizeof(htmlNodePtr)); |
| 3724 | if (ctxt->nodeTab == NULL) { |
| 3725 | xmlGenericError(xmlGenericErrorContext, |
| 3726 | "htmlInitParserCtxt: out of memory\n"); |
| 3727 | ctxt->nodeNr = 0; |
| 3728 | ctxt->nodeMax = 0; |
| 3729 | ctxt->node = NULL; |
| 3730 | ctxt->inputNr = 0; |
| 3731 | ctxt->inputMax = 0; |
| 3732 | ctxt->input = NULL; |
| 3733 | return; |
| 3734 | } |
| 3735 | ctxt->nodeNr = 0; |
| 3736 | ctxt->nodeMax = 10; |
| 3737 | ctxt->node = NULL; |
| 3738 | |
| 3739 | /* Allocate the Name stack */ |
| 3740 | ctxt->nameTab = (xmlChar **) xmlMalloc(10 * sizeof(xmlChar *)); |
| 3741 | if (ctxt->nameTab == NULL) { |
| 3742 | xmlGenericError(xmlGenericErrorContext, |
| 3743 | "htmlInitParserCtxt: out of memory\n"); |
| 3744 | ctxt->nameNr = 0; |
| 3745 | ctxt->nameMax = 10; |
| 3746 | ctxt->name = NULL; |
| 3747 | ctxt->nodeNr = 0; |
| 3748 | ctxt->nodeMax = 0; |
| 3749 | ctxt->node = NULL; |
| 3750 | ctxt->inputNr = 0; |
| 3751 | ctxt->inputMax = 0; |
| 3752 | ctxt->input = NULL; |
| 3753 | return; |
| 3754 | } |
| 3755 | ctxt->nameNr = 0; |
| 3756 | ctxt->nameMax = 10; |
| 3757 | ctxt->name = NULL; |
| 3758 | |
| 3759 | if (sax == NULL) ctxt->sax = &htmlDefaultSAXHandler; |
| 3760 | else { |
| 3761 | ctxt->sax = sax; |
| 3762 | memcpy(sax, &htmlDefaultSAXHandler, sizeof(htmlSAXHandler)); |
| 3763 | } |
| 3764 | ctxt->userData = ctxt; |
| 3765 | ctxt->myDoc = NULL; |
| 3766 | ctxt->wellFormed = 1; |
| 3767 | ctxt->replaceEntities = 0; |
Daniel Veillard | 635ef72 | 2001-10-29 11:48:19 +0000 | [diff] [blame] | 3768 | ctxt->linenumbers = xmlLineNumbersDefaultValue; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3769 | ctxt->html = 1; |
| 3770 | ctxt->record_info = 0; |
| 3771 | ctxt->validate = 0; |
| 3772 | ctxt->nbChars = 0; |
| 3773 | ctxt->checkIndex = 0; |
Daniel Veillard | dc2cee2 | 2001-08-22 16:30:37 +0000 | [diff] [blame] | 3774 | ctxt->catalogs = NULL; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3775 | xmlInitNodeInfoSeq(&ctxt->node_seq); |
| 3776 | } |
| 3777 | |
| 3778 | /** |
| 3779 | * htmlFreeParserCtxt: |
| 3780 | * @ctxt: an HTML parser context |
| 3781 | * |
| 3782 | * Free all the memory used by a parser context. However the parsed |
| 3783 | * document in ctxt->myDoc is not freed. |
| 3784 | */ |
| 3785 | |
| 3786 | void |
| 3787 | htmlFreeParserCtxt(htmlParserCtxtPtr ctxt) |
| 3788 | { |
| 3789 | xmlFreeParserCtxt(ctxt); |
| 3790 | } |
| 3791 | |
| 3792 | /** |
| 3793 | * htmlCreateDocParserCtxt : |
| 3794 | * @cur: a pointer to an array of xmlChar |
| 3795 | * @encoding: a free form C string describing the HTML document encoding, or NULL |
| 3796 | * |
| 3797 | * Create a parser context for an HTML document. |
| 3798 | * |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 3799 | * TODO: check the need to add encoding handling there |
| 3800 | * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3801 | * Returns the new parser context or NULL |
| 3802 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 3803 | static htmlParserCtxtPtr |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 3804 | htmlCreateDocParserCtxt(xmlChar *cur, const char *encoding ATTRIBUTE_UNUSED) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3805 | htmlParserCtxtPtr ctxt; |
| 3806 | htmlParserInputPtr input; |
| 3807 | /* htmlCharEncoding enc; */ |
| 3808 | |
| 3809 | ctxt = (htmlParserCtxtPtr) xmlMalloc(sizeof(htmlParserCtxt)); |
| 3810 | if (ctxt == NULL) { |
| 3811 | perror("malloc"); |
| 3812 | return(NULL); |
| 3813 | } |
| 3814 | htmlInitParserCtxt(ctxt); |
| 3815 | input = (htmlParserInputPtr) xmlMalloc(sizeof(htmlParserInput)); |
| 3816 | if (input == NULL) { |
| 3817 | perror("malloc"); |
| 3818 | xmlFree(ctxt); |
| 3819 | return(NULL); |
| 3820 | } |
| 3821 | memset(input, 0, sizeof(htmlParserInput)); |
| 3822 | |
| 3823 | input->line = 1; |
| 3824 | input->col = 1; |
| 3825 | input->base = cur; |
| 3826 | input->cur = cur; |
| 3827 | |
| 3828 | inputPush(ctxt, input); |
| 3829 | return(ctxt); |
| 3830 | } |
| 3831 | |
| 3832 | /************************************************************************ |
| 3833 | * * |
| 3834 | * Progressive parsing interfaces * |
| 3835 | * * |
| 3836 | ************************************************************************/ |
| 3837 | |
| 3838 | /** |
| 3839 | * htmlParseLookupSequence: |
| 3840 | * @ctxt: an HTML parser context |
| 3841 | * @first: the first char to lookup |
| 3842 | * @next: the next char to lookup or zero |
| 3843 | * @third: the next char to lookup or zero |
| 3844 | * |
| 3845 | * Try to find if a sequence (first, next, third) or just (first next) or |
| 3846 | * (first) is available in the input stream. |
| 3847 | * This function has a side effect of (possibly) incrementing ctxt->checkIndex |
| 3848 | * to avoid rescanning sequences of bytes, it DOES change the state of the |
| 3849 | * parser, do not use liberally. |
| 3850 | * This is basically similar to xmlParseLookupSequence() |
| 3851 | * |
| 3852 | * Returns the index to the current parsing point if the full sequence |
| 3853 | * is available, -1 otherwise. |
| 3854 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 3855 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3856 | htmlParseLookupSequence(htmlParserCtxtPtr ctxt, xmlChar first, |
| 3857 | xmlChar next, xmlChar third) { |
| 3858 | int base, len; |
| 3859 | htmlParserInputPtr in; |
| 3860 | const xmlChar *buf; |
Daniel Veillard | c1f7834 | 2001-11-10 11:43:05 +0000 | [diff] [blame] | 3861 | int incomment = 0; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3862 | |
| 3863 | in = ctxt->input; |
| 3864 | if (in == NULL) return(-1); |
| 3865 | base = in->cur - in->base; |
| 3866 | if (base < 0) return(-1); |
| 3867 | if (ctxt->checkIndex > base) |
| 3868 | base = ctxt->checkIndex; |
| 3869 | if (in->buf == NULL) { |
| 3870 | buf = in->base; |
| 3871 | len = in->length; |
| 3872 | } else { |
| 3873 | buf = in->buf->buffer->content; |
| 3874 | len = in->buf->buffer->use; |
| 3875 | } |
| 3876 | /* take into account the sequence length */ |
| 3877 | if (third) len -= 2; |
| 3878 | else if (next) len --; |
| 3879 | for (;base < len;base++) { |
Daniel Veillard | c1f7834 | 2001-11-10 11:43:05 +0000 | [diff] [blame] | 3880 | if (!incomment && (base + 4 < len)) { |
| 3881 | if ((buf[base] == '<') && (buf[base + 1] == '!') && |
| 3882 | (buf[base + 2] == '-') && (buf[base + 3] == '-')) { |
| 3883 | incomment = 1; |
| 3884 | } |
| 3885 | /* do not increment base, some people use <!--> */ |
| 3886 | } |
| 3887 | if (incomment) { |
| 3888 | if (base + 3 < len) |
| 3889 | return(-1); |
| 3890 | if ((buf[base] == '-') && (buf[base + 1] == '-') && |
| 3891 | (buf[base + 2] == '>')) { |
| 3892 | incomment = 0; |
| 3893 | base += 2; |
| 3894 | } |
| 3895 | continue; |
| 3896 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3897 | if (buf[base] == first) { |
| 3898 | if (third != 0) { |
| 3899 | if ((buf[base + 1] != next) || |
| 3900 | (buf[base + 2] != third)) continue; |
| 3901 | } else if (next != 0) { |
| 3902 | if (buf[base + 1] != next) continue; |
| 3903 | } |
| 3904 | ctxt->checkIndex = 0; |
| 3905 | #ifdef DEBUG_PUSH |
| 3906 | if (next == 0) |
| 3907 | xmlGenericError(xmlGenericErrorContext, |
| 3908 | "HPP: lookup '%c' found at %d\n", |
| 3909 | first, base); |
| 3910 | else if (third == 0) |
| 3911 | xmlGenericError(xmlGenericErrorContext, |
| 3912 | "HPP: lookup '%c%c' found at %d\n", |
| 3913 | first, next, base); |
| 3914 | else |
| 3915 | xmlGenericError(xmlGenericErrorContext, |
| 3916 | "HPP: lookup '%c%c%c' found at %d\n", |
| 3917 | first, next, third, base); |
| 3918 | #endif |
| 3919 | return(base - (in->cur - in->base)); |
| 3920 | } |
| 3921 | } |
| 3922 | ctxt->checkIndex = base; |
| 3923 | #ifdef DEBUG_PUSH |
| 3924 | if (next == 0) |
| 3925 | xmlGenericError(xmlGenericErrorContext, |
| 3926 | "HPP: lookup '%c' failed\n", first); |
| 3927 | else if (third == 0) |
| 3928 | xmlGenericError(xmlGenericErrorContext, |
| 3929 | "HPP: lookup '%c%c' failed\n", first, next); |
| 3930 | else |
| 3931 | xmlGenericError(xmlGenericErrorContext, |
| 3932 | "HPP: lookup '%c%c%c' failed\n", first, next, third); |
| 3933 | #endif |
| 3934 | return(-1); |
| 3935 | } |
| 3936 | |
| 3937 | /** |
| 3938 | * htmlParseTryOrFinish: |
| 3939 | * @ctxt: an HTML parser context |
| 3940 | * @terminate: last chunk indicator |
| 3941 | * |
| 3942 | * Try to progress on parsing |
| 3943 | * |
| 3944 | * Returns zero if no parsing was possible |
| 3945 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 3946 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3947 | htmlParseTryOrFinish(htmlParserCtxtPtr ctxt, int terminate) { |
| 3948 | int ret = 0; |
| 3949 | htmlParserInputPtr in; |
| 3950 | int avail = 0; |
| 3951 | xmlChar cur, next; |
| 3952 | |
| 3953 | #ifdef DEBUG_PUSH |
| 3954 | switch (ctxt->instate) { |
| 3955 | case XML_PARSER_EOF: |
| 3956 | xmlGenericError(xmlGenericErrorContext, |
| 3957 | "HPP: try EOF\n"); break; |
| 3958 | case XML_PARSER_START: |
| 3959 | xmlGenericError(xmlGenericErrorContext, |
| 3960 | "HPP: try START\n"); break; |
| 3961 | case XML_PARSER_MISC: |
| 3962 | xmlGenericError(xmlGenericErrorContext, |
| 3963 | "HPP: try MISC\n");break; |
| 3964 | case XML_PARSER_COMMENT: |
| 3965 | xmlGenericError(xmlGenericErrorContext, |
| 3966 | "HPP: try COMMENT\n");break; |
| 3967 | case XML_PARSER_PROLOG: |
| 3968 | xmlGenericError(xmlGenericErrorContext, |
| 3969 | "HPP: try PROLOG\n");break; |
| 3970 | case XML_PARSER_START_TAG: |
| 3971 | xmlGenericError(xmlGenericErrorContext, |
| 3972 | "HPP: try START_TAG\n");break; |
| 3973 | case XML_PARSER_CONTENT: |
| 3974 | xmlGenericError(xmlGenericErrorContext, |
| 3975 | "HPP: try CONTENT\n");break; |
| 3976 | case XML_PARSER_CDATA_SECTION: |
| 3977 | xmlGenericError(xmlGenericErrorContext, |
| 3978 | "HPP: try CDATA_SECTION\n");break; |
| 3979 | case XML_PARSER_END_TAG: |
| 3980 | xmlGenericError(xmlGenericErrorContext, |
| 3981 | "HPP: try END_TAG\n");break; |
| 3982 | case XML_PARSER_ENTITY_DECL: |
| 3983 | xmlGenericError(xmlGenericErrorContext, |
| 3984 | "HPP: try ENTITY_DECL\n");break; |
| 3985 | case XML_PARSER_ENTITY_VALUE: |
| 3986 | xmlGenericError(xmlGenericErrorContext, |
| 3987 | "HPP: try ENTITY_VALUE\n");break; |
| 3988 | case XML_PARSER_ATTRIBUTE_VALUE: |
| 3989 | xmlGenericError(xmlGenericErrorContext, |
| 3990 | "HPP: try ATTRIBUTE_VALUE\n");break; |
| 3991 | case XML_PARSER_DTD: |
| 3992 | xmlGenericError(xmlGenericErrorContext, |
| 3993 | "HPP: try DTD\n");break; |
| 3994 | case XML_PARSER_EPILOG: |
| 3995 | xmlGenericError(xmlGenericErrorContext, |
| 3996 | "HPP: try EPILOG\n");break; |
| 3997 | case XML_PARSER_PI: |
| 3998 | xmlGenericError(xmlGenericErrorContext, |
| 3999 | "HPP: try PI\n");break; |
| 4000 | case XML_PARSER_SYSTEM_LITERAL: |
| 4001 | xmlGenericError(xmlGenericErrorContext, |
| 4002 | "HPP: try SYSTEM_LITERAL\n");break; |
| 4003 | } |
| 4004 | #endif |
| 4005 | |
| 4006 | while (1) { |
| 4007 | |
| 4008 | in = ctxt->input; |
| 4009 | if (in == NULL) break; |
| 4010 | if (in->buf == NULL) |
| 4011 | avail = in->length - (in->cur - in->base); |
| 4012 | else |
| 4013 | avail = in->buf->buffer->use - (in->cur - in->base); |
| 4014 | if ((avail == 0) && (terminate)) { |
Daniel Veillard | a3bfca5 | 2001-04-12 15:42:58 +0000 | [diff] [blame] | 4015 | htmlAutoCloseOnEnd(ctxt); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4016 | if ((ctxt->nameNr == 0) && (ctxt->instate != XML_PARSER_EOF)) { |
| 4017 | /* |
| 4018 | * SAX: end of the document processing. |
| 4019 | */ |
| 4020 | ctxt->instate = XML_PARSER_EOF; |
| 4021 | if ((ctxt->sax) && (ctxt->sax->endDocument != NULL)) |
| 4022 | ctxt->sax->endDocument(ctxt->userData); |
| 4023 | } |
| 4024 | } |
| 4025 | if (avail < 1) |
| 4026 | goto done; |
| 4027 | switch (ctxt->instate) { |
| 4028 | case XML_PARSER_EOF: |
| 4029 | /* |
| 4030 | * Document parsing is done ! |
| 4031 | */ |
| 4032 | goto done; |
| 4033 | case XML_PARSER_START: |
| 4034 | /* |
| 4035 | * Very first chars read from the document flow. |
| 4036 | */ |
| 4037 | cur = in->cur[0]; |
| 4038 | if (IS_BLANK(cur)) { |
| 4039 | SKIP_BLANKS; |
| 4040 | if (in->buf == NULL) |
| 4041 | avail = in->length - (in->cur - in->base); |
| 4042 | else |
| 4043 | avail = in->buf->buffer->use - (in->cur - in->base); |
| 4044 | } |
| 4045 | if ((ctxt->sax) && (ctxt->sax->setDocumentLocator)) |
| 4046 | ctxt->sax->setDocumentLocator(ctxt->userData, |
| 4047 | &xmlDefaultSAXLocator); |
| 4048 | if ((ctxt->sax) && (ctxt->sax->startDocument) && |
| 4049 | (!ctxt->disableSAX)) |
| 4050 | ctxt->sax->startDocument(ctxt->userData); |
| 4051 | |
| 4052 | cur = in->cur[0]; |
| 4053 | next = in->cur[1]; |
| 4054 | if ((cur == '<') && (next == '!') && |
| 4055 | (UPP(2) == 'D') && (UPP(3) == 'O') && |
| 4056 | (UPP(4) == 'C') && (UPP(5) == 'T') && |
| 4057 | (UPP(6) == 'Y') && (UPP(7) == 'P') && |
| 4058 | (UPP(8) == 'E')) { |
| 4059 | if ((!terminate) && |
| 4060 | (htmlParseLookupSequence(ctxt, '>', 0, 0) < 0)) |
| 4061 | goto done; |
| 4062 | #ifdef DEBUG_PUSH |
| 4063 | xmlGenericError(xmlGenericErrorContext, |
| 4064 | "HPP: Parsing internal subset\n"); |
| 4065 | #endif |
| 4066 | htmlParseDocTypeDecl(ctxt); |
| 4067 | ctxt->instate = XML_PARSER_PROLOG; |
| 4068 | #ifdef DEBUG_PUSH |
| 4069 | xmlGenericError(xmlGenericErrorContext, |
| 4070 | "HPP: entering PROLOG\n"); |
| 4071 | #endif |
| 4072 | } else { |
| 4073 | ctxt->instate = XML_PARSER_MISC; |
| 4074 | } |
| 4075 | #ifdef DEBUG_PUSH |
| 4076 | xmlGenericError(xmlGenericErrorContext, |
| 4077 | "HPP: entering MISC\n"); |
| 4078 | #endif |
| 4079 | break; |
| 4080 | case XML_PARSER_MISC: |
| 4081 | SKIP_BLANKS; |
| 4082 | if (in->buf == NULL) |
| 4083 | avail = in->length - (in->cur - in->base); |
| 4084 | else |
| 4085 | avail = in->buf->buffer->use - (in->cur - in->base); |
| 4086 | if (avail < 2) |
| 4087 | goto done; |
| 4088 | cur = in->cur[0]; |
| 4089 | next = in->cur[1]; |
| 4090 | if ((cur == '<') && (next == '!') && |
| 4091 | (in->cur[2] == '-') && (in->cur[3] == '-')) { |
| 4092 | if ((!terminate) && |
| 4093 | (htmlParseLookupSequence(ctxt, '-', '-', '>') < 0)) |
| 4094 | goto done; |
| 4095 | #ifdef DEBUG_PUSH |
| 4096 | xmlGenericError(xmlGenericErrorContext, |
| 4097 | "HPP: Parsing Comment\n"); |
| 4098 | #endif |
| 4099 | htmlParseComment(ctxt); |
| 4100 | ctxt->instate = XML_PARSER_MISC; |
| 4101 | } else if ((cur == '<') && (next == '!') && |
| 4102 | (UPP(2) == 'D') && (UPP(3) == 'O') && |
| 4103 | (UPP(4) == 'C') && (UPP(5) == 'T') && |
| 4104 | (UPP(6) == 'Y') && (UPP(7) == 'P') && |
| 4105 | (UPP(8) == 'E')) { |
| 4106 | if ((!terminate) && |
| 4107 | (htmlParseLookupSequence(ctxt, '>', 0, 0) < 0)) |
| 4108 | goto done; |
| 4109 | #ifdef DEBUG_PUSH |
| 4110 | xmlGenericError(xmlGenericErrorContext, |
| 4111 | "HPP: Parsing internal subset\n"); |
| 4112 | #endif |
| 4113 | htmlParseDocTypeDecl(ctxt); |
| 4114 | ctxt->instate = XML_PARSER_PROLOG; |
| 4115 | #ifdef DEBUG_PUSH |
| 4116 | xmlGenericError(xmlGenericErrorContext, |
| 4117 | "HPP: entering PROLOG\n"); |
| 4118 | #endif |
| 4119 | } else if ((cur == '<') && (next == '!') && |
| 4120 | (avail < 9)) { |
| 4121 | goto done; |
| 4122 | } else { |
| 4123 | ctxt->instate = XML_PARSER_START_TAG; |
| 4124 | #ifdef DEBUG_PUSH |
| 4125 | xmlGenericError(xmlGenericErrorContext, |
| 4126 | "HPP: entering START_TAG\n"); |
| 4127 | #endif |
| 4128 | } |
| 4129 | break; |
| 4130 | case XML_PARSER_PROLOG: |
| 4131 | SKIP_BLANKS; |
| 4132 | if (in->buf == NULL) |
| 4133 | avail = in->length - (in->cur - in->base); |
| 4134 | else |
| 4135 | avail = in->buf->buffer->use - (in->cur - in->base); |
| 4136 | if (avail < 2) |
| 4137 | goto done; |
| 4138 | cur = in->cur[0]; |
| 4139 | next = in->cur[1]; |
| 4140 | if ((cur == '<') && (next == '!') && |
| 4141 | (in->cur[2] == '-') && (in->cur[3] == '-')) { |
| 4142 | if ((!terminate) && |
| 4143 | (htmlParseLookupSequence(ctxt, '-', '-', '>') < 0)) |
| 4144 | goto done; |
| 4145 | #ifdef DEBUG_PUSH |
| 4146 | xmlGenericError(xmlGenericErrorContext, |
| 4147 | "HPP: Parsing Comment\n"); |
| 4148 | #endif |
| 4149 | htmlParseComment(ctxt); |
| 4150 | ctxt->instate = XML_PARSER_PROLOG; |
| 4151 | } else if ((cur == '<') && (next == '!') && |
| 4152 | (avail < 4)) { |
| 4153 | goto done; |
| 4154 | } else { |
| 4155 | ctxt->instate = XML_PARSER_START_TAG; |
| 4156 | #ifdef DEBUG_PUSH |
| 4157 | xmlGenericError(xmlGenericErrorContext, |
| 4158 | "HPP: entering START_TAG\n"); |
| 4159 | #endif |
| 4160 | } |
| 4161 | break; |
| 4162 | case XML_PARSER_EPILOG: |
| 4163 | if (in->buf == NULL) |
| 4164 | avail = in->length - (in->cur - in->base); |
| 4165 | else |
| 4166 | avail = in->buf->buffer->use - (in->cur - in->base); |
| 4167 | if (avail < 1) |
| 4168 | goto done; |
| 4169 | cur = in->cur[0]; |
| 4170 | if (IS_BLANK(cur)) { |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 4171 | htmlParseCharData(ctxt); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4172 | goto done; |
| 4173 | } |
| 4174 | if (avail < 2) |
| 4175 | goto done; |
| 4176 | next = in->cur[1]; |
| 4177 | if ((cur == '<') && (next == '!') && |
| 4178 | (in->cur[2] == '-') && (in->cur[3] == '-')) { |
| 4179 | if ((!terminate) && |
| 4180 | (htmlParseLookupSequence(ctxt, '-', '-', '>') < 0)) |
| 4181 | goto done; |
| 4182 | #ifdef DEBUG_PUSH |
| 4183 | xmlGenericError(xmlGenericErrorContext, |
| 4184 | "HPP: Parsing Comment\n"); |
| 4185 | #endif |
| 4186 | htmlParseComment(ctxt); |
| 4187 | ctxt->instate = XML_PARSER_EPILOG; |
| 4188 | } else if ((cur == '<') && (next == '!') && |
| 4189 | (avail < 4)) { |
| 4190 | goto done; |
| 4191 | } else { |
| 4192 | ctxt->errNo = XML_ERR_DOCUMENT_END; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4193 | ctxt->wellFormed = 0; |
| 4194 | ctxt->instate = XML_PARSER_EOF; |
| 4195 | #ifdef DEBUG_PUSH |
| 4196 | xmlGenericError(xmlGenericErrorContext, |
| 4197 | "HPP: entering EOF\n"); |
| 4198 | #endif |
| 4199 | if ((ctxt->sax) && (ctxt->sax->endDocument != NULL)) |
| 4200 | ctxt->sax->endDocument(ctxt->userData); |
| 4201 | goto done; |
| 4202 | } |
| 4203 | break; |
| 4204 | case XML_PARSER_START_TAG: { |
| 4205 | xmlChar *name, *oldname; |
| 4206 | int depth = ctxt->nameNr; |
Daniel Veillard | bb37129 | 2001-08-16 23:26:59 +0000 | [diff] [blame] | 4207 | const htmlElemDesc * info; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4208 | |
| 4209 | if (avail < 2) |
| 4210 | goto done; |
| 4211 | cur = in->cur[0]; |
| 4212 | if (cur != '<') { |
| 4213 | ctxt->instate = XML_PARSER_CONTENT; |
| 4214 | #ifdef DEBUG_PUSH |
| 4215 | xmlGenericError(xmlGenericErrorContext, |
| 4216 | "HPP: entering CONTENT\n"); |
| 4217 | #endif |
| 4218 | break; |
| 4219 | } |
Daniel Veillard | f69bb4b | 2001-05-19 13:24:56 +0000 | [diff] [blame] | 4220 | if (in->cur[1] == '/') { |
| 4221 | ctxt->instate = XML_PARSER_END_TAG; |
| 4222 | ctxt->checkIndex = 0; |
| 4223 | #ifdef DEBUG_PUSH |
| 4224 | xmlGenericError(xmlGenericErrorContext, |
| 4225 | "HPP: entering END_TAG\n"); |
| 4226 | #endif |
| 4227 | break; |
| 4228 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4229 | if ((!terminate) && |
| 4230 | (htmlParseLookupSequence(ctxt, '>', 0, 0) < 0)) |
| 4231 | goto done; |
| 4232 | |
| 4233 | oldname = xmlStrdup(ctxt->name); |
| 4234 | htmlParseStartTag(ctxt); |
| 4235 | name = ctxt->name; |
| 4236 | #ifdef DEBUG |
| 4237 | if (oldname == NULL) |
| 4238 | xmlGenericError(xmlGenericErrorContext, |
| 4239 | "Start of element %s\n", name); |
| 4240 | else if (name == NULL) |
| 4241 | xmlGenericError(xmlGenericErrorContext, |
| 4242 | "Start of element failed, was %s\n", |
| 4243 | oldname); |
| 4244 | else |
| 4245 | xmlGenericError(xmlGenericErrorContext, |
| 4246 | "Start of element %s, was %s\n", |
| 4247 | name, oldname); |
| 4248 | #endif |
| 4249 | if (((depth == ctxt->nameNr) && |
| 4250 | (xmlStrEqual(oldname, ctxt->name))) || |
| 4251 | (name == NULL)) { |
| 4252 | if (CUR == '>') |
| 4253 | NEXT; |
| 4254 | if (oldname != NULL) |
| 4255 | xmlFree(oldname); |
| 4256 | break; |
| 4257 | } |
| 4258 | if (oldname != NULL) |
| 4259 | xmlFree(oldname); |
| 4260 | |
| 4261 | /* |
| 4262 | * Lookup the info for that element. |
| 4263 | */ |
| 4264 | info = htmlTagLookup(name); |
| 4265 | if (info == NULL) { |
| 4266 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 4267 | ctxt->sax->error(ctxt->userData, "Tag %s invalid\n", |
| 4268 | name); |
| 4269 | ctxt->wellFormed = 0; |
| 4270 | } else if (info->depr) { |
| 4271 | /*************************** |
| 4272 | if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL)) |
| 4273 | ctxt->sax->warning(ctxt->userData, |
| 4274 | "Tag %s is deprecated\n", |
| 4275 | name); |
| 4276 | ***************************/ |
| 4277 | } |
| 4278 | |
| 4279 | /* |
Daniel Veillard | cbaf399 | 2001-12-31 16:16:02 +0000 | [diff] [blame] | 4280 | * Check for an Empty Element labeled the XML/SGML way |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4281 | */ |
| 4282 | if ((CUR == '/') && (NXT(1) == '>')) { |
| 4283 | SKIP(2); |
| 4284 | if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) |
| 4285 | ctxt->sax->endElement(ctxt->userData, name); |
| 4286 | oldname = htmlnamePop(ctxt); |
| 4287 | #ifdef DEBUG |
| 4288 | xmlGenericError(xmlGenericErrorContext,"End of tag the XML way: popping out %s\n", |
| 4289 | oldname); |
| 4290 | #endif |
| 4291 | if (oldname != NULL) |
| 4292 | xmlFree(oldname); |
| 4293 | ctxt->instate = XML_PARSER_CONTENT; |
| 4294 | #ifdef DEBUG_PUSH |
| 4295 | xmlGenericError(xmlGenericErrorContext, |
| 4296 | "HPP: entering CONTENT\n"); |
| 4297 | #endif |
| 4298 | break; |
| 4299 | } |
| 4300 | |
| 4301 | if (CUR == '>') { |
| 4302 | NEXT; |
| 4303 | } else { |
| 4304 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 4305 | ctxt->sax->error(ctxt->userData, |
| 4306 | "Couldn't find end of Start Tag %s\n", |
| 4307 | name); |
| 4308 | ctxt->wellFormed = 0; |
| 4309 | |
| 4310 | /* |
| 4311 | * end of parsing of this node. |
| 4312 | */ |
| 4313 | if (xmlStrEqual(name, ctxt->name)) { |
| 4314 | nodePop(ctxt); |
| 4315 | oldname = htmlnamePop(ctxt); |
| 4316 | #ifdef DEBUG |
| 4317 | xmlGenericError(xmlGenericErrorContext, |
| 4318 | "End of start tag problem: popping out %s\n", oldname); |
| 4319 | #endif |
| 4320 | if (oldname != NULL) |
| 4321 | xmlFree(oldname); |
| 4322 | } |
| 4323 | |
| 4324 | ctxt->instate = XML_PARSER_CONTENT; |
| 4325 | #ifdef DEBUG_PUSH |
| 4326 | xmlGenericError(xmlGenericErrorContext, |
| 4327 | "HPP: entering CONTENT\n"); |
| 4328 | #endif |
| 4329 | break; |
| 4330 | } |
| 4331 | |
| 4332 | /* |
| 4333 | * Check for an Empty Element from DTD definition |
| 4334 | */ |
| 4335 | if ((info != NULL) && (info->empty)) { |
| 4336 | if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) |
| 4337 | ctxt->sax->endElement(ctxt->userData, name); |
| 4338 | oldname = htmlnamePop(ctxt); |
| 4339 | #ifdef DEBUG |
| 4340 | xmlGenericError(xmlGenericErrorContext,"End of empty tag %s : popping out %s\n", name, oldname); |
| 4341 | #endif |
| 4342 | if (oldname != NULL) |
| 4343 | xmlFree(oldname); |
| 4344 | } |
| 4345 | ctxt->instate = XML_PARSER_CONTENT; |
| 4346 | #ifdef DEBUG_PUSH |
| 4347 | xmlGenericError(xmlGenericErrorContext, |
| 4348 | "HPP: entering CONTENT\n"); |
| 4349 | #endif |
| 4350 | break; |
| 4351 | } |
| 4352 | case XML_PARSER_CONTENT: { |
| 4353 | long cons; |
| 4354 | /* |
| 4355 | * Handle preparsed entities and charRef |
| 4356 | */ |
| 4357 | if (ctxt->token != 0) { |
| 4358 | xmlChar chr[2] = { 0 , 0 } ; |
| 4359 | |
| 4360 | chr[0] = (xmlChar) ctxt->token; |
| 4361 | htmlCheckParagraph(ctxt); |
| 4362 | if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL)) |
| 4363 | ctxt->sax->characters(ctxt->userData, chr, 1); |
| 4364 | ctxt->token = 0; |
| 4365 | ctxt->checkIndex = 0; |
| 4366 | } |
| 4367 | if ((avail == 1) && (terminate)) { |
| 4368 | cur = in->cur[0]; |
| 4369 | if ((cur != '<') && (cur != '&')) { |
| 4370 | if (ctxt->sax != NULL) { |
| 4371 | if (IS_BLANK(cur)) { |
| 4372 | if (ctxt->sax->ignorableWhitespace != NULL) |
| 4373 | ctxt->sax->ignorableWhitespace( |
| 4374 | ctxt->userData, &cur, 1); |
| 4375 | } else { |
| 4376 | htmlCheckParagraph(ctxt); |
| 4377 | if (ctxt->sax->characters != NULL) |
| 4378 | ctxt->sax->characters( |
| 4379 | ctxt->userData, &cur, 1); |
| 4380 | } |
| 4381 | } |
| 4382 | ctxt->token = 0; |
| 4383 | ctxt->checkIndex = 0; |
| 4384 | NEXT; |
William M. Brack | 1633d18 | 2001-10-05 15:41:19 +0000 | [diff] [blame] | 4385 | break; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4386 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4387 | } |
| 4388 | if (avail < 2) |
| 4389 | goto done; |
| 4390 | cur = in->cur[0]; |
| 4391 | next = in->cur[1]; |
| 4392 | cons = ctxt->nbChars; |
| 4393 | if ((xmlStrEqual(ctxt->name, BAD_CAST"script")) || |
| 4394 | (xmlStrEqual(ctxt->name, BAD_CAST"style"))) { |
| 4395 | /* |
| 4396 | * Handle SCRIPT/STYLE separately |
| 4397 | */ |
| 4398 | if ((!terminate) && |
| 4399 | (htmlParseLookupSequence(ctxt, '<', '/', 0) < 0)) |
| 4400 | goto done; |
| 4401 | htmlParseScript(ctxt); |
| 4402 | if ((cur == '<') && (next == '/')) { |
| 4403 | ctxt->instate = XML_PARSER_END_TAG; |
| 4404 | ctxt->checkIndex = 0; |
| 4405 | #ifdef DEBUG_PUSH |
| 4406 | xmlGenericError(xmlGenericErrorContext, |
| 4407 | "HPP: entering END_TAG\n"); |
| 4408 | #endif |
| 4409 | break; |
| 4410 | } |
| 4411 | } else { |
| 4412 | /* |
| 4413 | * Sometimes DOCTYPE arrives in the middle of the document |
| 4414 | */ |
| 4415 | if ((cur == '<') && (next == '!') && |
| 4416 | (UPP(2) == 'D') && (UPP(3) == 'O') && |
| 4417 | (UPP(4) == 'C') && (UPP(5) == 'T') && |
| 4418 | (UPP(6) == 'Y') && (UPP(7) == 'P') && |
| 4419 | (UPP(8) == 'E')) { |
| 4420 | if ((!terminate) && |
| 4421 | (htmlParseLookupSequence(ctxt, '>', 0, 0) < 0)) |
| 4422 | goto done; |
| 4423 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 4424 | ctxt->sax->error(ctxt->userData, |
| 4425 | "Misplaced DOCTYPE declaration\n"); |
| 4426 | ctxt->wellFormed = 0; |
| 4427 | htmlParseDocTypeDecl(ctxt); |
| 4428 | } else if ((cur == '<') && (next == '!') && |
| 4429 | (in->cur[2] == '-') && (in->cur[3] == '-')) { |
| 4430 | if ((!terminate) && |
| 4431 | (htmlParseLookupSequence(ctxt, '-', '-', '>') < 0)) |
| 4432 | goto done; |
| 4433 | #ifdef DEBUG_PUSH |
| 4434 | xmlGenericError(xmlGenericErrorContext, |
| 4435 | "HPP: Parsing Comment\n"); |
| 4436 | #endif |
| 4437 | htmlParseComment(ctxt); |
| 4438 | ctxt->instate = XML_PARSER_CONTENT; |
| 4439 | } else if ((cur == '<') && (next == '!') && (avail < 4)) { |
| 4440 | goto done; |
| 4441 | } else if ((cur == '<') && (next == '/')) { |
| 4442 | ctxt->instate = XML_PARSER_END_TAG; |
| 4443 | ctxt->checkIndex = 0; |
| 4444 | #ifdef DEBUG_PUSH |
| 4445 | xmlGenericError(xmlGenericErrorContext, |
| 4446 | "HPP: entering END_TAG\n"); |
| 4447 | #endif |
| 4448 | break; |
| 4449 | } else if (cur == '<') { |
| 4450 | ctxt->instate = XML_PARSER_START_TAG; |
| 4451 | ctxt->checkIndex = 0; |
| 4452 | #ifdef DEBUG_PUSH |
| 4453 | xmlGenericError(xmlGenericErrorContext, |
| 4454 | "HPP: entering START_TAG\n"); |
| 4455 | #endif |
| 4456 | break; |
| 4457 | } else if (cur == '&') { |
| 4458 | if ((!terminate) && |
| 4459 | (htmlParseLookupSequence(ctxt, ';', 0, 0) < 0)) |
| 4460 | goto done; |
| 4461 | #ifdef DEBUG_PUSH |
| 4462 | xmlGenericError(xmlGenericErrorContext, |
| 4463 | "HPP: Parsing Reference\n"); |
| 4464 | #endif |
| 4465 | /* TODO: check generation of subtrees if noent !!! */ |
| 4466 | htmlParseReference(ctxt); |
| 4467 | } else { |
| 4468 | /* TODO Avoid the extra copy, handle directly !!!!!! */ |
| 4469 | /* |
| 4470 | * Goal of the following test is : |
| 4471 | * - minimize calls to the SAX 'character' callback |
| 4472 | * when they are mergeable |
| 4473 | */ |
| 4474 | if ((ctxt->inputNr == 1) && |
| 4475 | (avail < HTML_PARSER_BIG_BUFFER_SIZE)) { |
| 4476 | if ((!terminate) && |
| 4477 | (htmlParseLookupSequence(ctxt, '<', 0, 0) < 0)) |
| 4478 | goto done; |
| 4479 | } |
| 4480 | ctxt->checkIndex = 0; |
| 4481 | #ifdef DEBUG_PUSH |
| 4482 | xmlGenericError(xmlGenericErrorContext, |
| 4483 | "HPP: Parsing char data\n"); |
| 4484 | #endif |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 4485 | htmlParseCharData(ctxt); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4486 | } |
| 4487 | } |
| 4488 | if (cons == ctxt->nbChars) { |
| 4489 | if (ctxt->node != NULL) { |
| 4490 | if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) |
| 4491 | ctxt->sax->error(ctxt->userData, |
| 4492 | "detected an error in element content\n"); |
| 4493 | ctxt->wellFormed = 0; |
| 4494 | } |
| 4495 | NEXT; |
| 4496 | break; |
| 4497 | } |
| 4498 | |
| 4499 | break; |
| 4500 | } |
| 4501 | case XML_PARSER_END_TAG: |
| 4502 | if (avail < 2) |
| 4503 | goto done; |
| 4504 | if ((!terminate) && |
| 4505 | (htmlParseLookupSequence(ctxt, '>', 0, 0) < 0)) |
| 4506 | goto done; |
| 4507 | htmlParseEndTag(ctxt); |
| 4508 | if (ctxt->nameNr == 0) { |
| 4509 | ctxt->instate = XML_PARSER_EPILOG; |
| 4510 | } else { |
| 4511 | ctxt->instate = XML_PARSER_CONTENT; |
| 4512 | } |
| 4513 | ctxt->checkIndex = 0; |
| 4514 | #ifdef DEBUG_PUSH |
| 4515 | xmlGenericError(xmlGenericErrorContext, |
| 4516 | "HPP: entering CONTENT\n"); |
| 4517 | #endif |
| 4518 | break; |
| 4519 | case XML_PARSER_CDATA_SECTION: |
| 4520 | xmlGenericError(xmlGenericErrorContext, |
| 4521 | "HPP: internal error, state == CDATA\n"); |
| 4522 | ctxt->instate = XML_PARSER_CONTENT; |
| 4523 | ctxt->checkIndex = 0; |
| 4524 | #ifdef DEBUG_PUSH |
| 4525 | xmlGenericError(xmlGenericErrorContext, |
| 4526 | "HPP: entering CONTENT\n"); |
| 4527 | #endif |
| 4528 | break; |
| 4529 | case XML_PARSER_DTD: |
| 4530 | xmlGenericError(xmlGenericErrorContext, |
| 4531 | "HPP: internal error, state == DTD\n"); |
| 4532 | ctxt->instate = XML_PARSER_CONTENT; |
| 4533 | ctxt->checkIndex = 0; |
| 4534 | #ifdef DEBUG_PUSH |
| 4535 | xmlGenericError(xmlGenericErrorContext, |
| 4536 | "HPP: entering CONTENT\n"); |
| 4537 | #endif |
| 4538 | break; |
| 4539 | case XML_PARSER_COMMENT: |
| 4540 | xmlGenericError(xmlGenericErrorContext, |
| 4541 | "HPP: internal error, state == COMMENT\n"); |
| 4542 | ctxt->instate = XML_PARSER_CONTENT; |
| 4543 | ctxt->checkIndex = 0; |
| 4544 | #ifdef DEBUG_PUSH |
| 4545 | xmlGenericError(xmlGenericErrorContext, |
| 4546 | "HPP: entering CONTENT\n"); |
| 4547 | #endif |
| 4548 | break; |
| 4549 | case XML_PARSER_PI: |
| 4550 | xmlGenericError(xmlGenericErrorContext, |
| 4551 | "HPP: internal error, state == PI\n"); |
| 4552 | ctxt->instate = XML_PARSER_CONTENT; |
| 4553 | ctxt->checkIndex = 0; |
| 4554 | #ifdef DEBUG_PUSH |
| 4555 | xmlGenericError(xmlGenericErrorContext, |
| 4556 | "HPP: entering CONTENT\n"); |
| 4557 | #endif |
| 4558 | break; |
| 4559 | case XML_PARSER_ENTITY_DECL: |
| 4560 | xmlGenericError(xmlGenericErrorContext, |
| 4561 | "HPP: internal error, state == ENTITY_DECL\n"); |
| 4562 | ctxt->instate = XML_PARSER_CONTENT; |
| 4563 | ctxt->checkIndex = 0; |
| 4564 | #ifdef DEBUG_PUSH |
| 4565 | xmlGenericError(xmlGenericErrorContext, |
| 4566 | "HPP: entering CONTENT\n"); |
| 4567 | #endif |
| 4568 | break; |
| 4569 | case XML_PARSER_ENTITY_VALUE: |
| 4570 | xmlGenericError(xmlGenericErrorContext, |
| 4571 | "HPP: internal error, state == ENTITY_VALUE\n"); |
| 4572 | ctxt->instate = XML_PARSER_CONTENT; |
| 4573 | ctxt->checkIndex = 0; |
| 4574 | #ifdef DEBUG_PUSH |
| 4575 | xmlGenericError(xmlGenericErrorContext, |
| 4576 | "HPP: entering DTD\n"); |
| 4577 | #endif |
| 4578 | break; |
| 4579 | case XML_PARSER_ATTRIBUTE_VALUE: |
| 4580 | xmlGenericError(xmlGenericErrorContext, |
| 4581 | "HPP: internal error, state == ATTRIBUTE_VALUE\n"); |
| 4582 | ctxt->instate = XML_PARSER_START_TAG; |
| 4583 | ctxt->checkIndex = 0; |
| 4584 | #ifdef DEBUG_PUSH |
| 4585 | xmlGenericError(xmlGenericErrorContext, |
| 4586 | "HPP: entering START_TAG\n"); |
| 4587 | #endif |
| 4588 | break; |
| 4589 | case XML_PARSER_SYSTEM_LITERAL: |
| 4590 | xmlGenericError(xmlGenericErrorContext, |
| 4591 | "HPP: internal error, state == XML_PARSER_SYSTEM_LITERAL\n"); |
| 4592 | ctxt->instate = XML_PARSER_CONTENT; |
| 4593 | ctxt->checkIndex = 0; |
| 4594 | #ifdef DEBUG_PUSH |
| 4595 | xmlGenericError(xmlGenericErrorContext, |
| 4596 | "HPP: entering CONTENT\n"); |
| 4597 | #endif |
| 4598 | break; |
| 4599 | case XML_PARSER_IGNORE: |
| 4600 | xmlGenericError(xmlGenericErrorContext, |
| 4601 | "HPP: internal error, state == XML_PARSER_IGNORE\n"); |
| 4602 | ctxt->instate = XML_PARSER_CONTENT; |
| 4603 | ctxt->checkIndex = 0; |
| 4604 | #ifdef DEBUG_PUSH |
| 4605 | xmlGenericError(xmlGenericErrorContext, |
| 4606 | "HPP: entering CONTENT\n"); |
| 4607 | #endif |
| 4608 | break; |
Daniel Veillard | 044fc6b | 2002-03-04 17:09:44 +0000 | [diff] [blame] | 4609 | case XML_PARSER_PUBLIC_LITERAL: |
| 4610 | xmlGenericError(xmlGenericErrorContext, |
| 4611 | "HPP: internal error, state == XML_PARSER_LITERAL\n"); |
| 4612 | ctxt->instate = XML_PARSER_CONTENT; |
| 4613 | ctxt->checkIndex = 0; |
| 4614 | #ifdef DEBUG_PUSH |
| 4615 | xmlGenericError(xmlGenericErrorContext, |
| 4616 | "HPP: entering CONTENT\n"); |
| 4617 | #endif |
| 4618 | break; |
| 4619 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4620 | } |
| 4621 | } |
| 4622 | done: |
| 4623 | if ((avail == 0) && (terminate)) { |
Daniel Veillard | a3bfca5 | 2001-04-12 15:42:58 +0000 | [diff] [blame] | 4624 | htmlAutoCloseOnEnd(ctxt); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4625 | if ((ctxt->nameNr == 0) && (ctxt->instate != XML_PARSER_EOF)) { |
| 4626 | /* |
| 4627 | * SAX: end of the document processing. |
| 4628 | */ |
| 4629 | ctxt->instate = XML_PARSER_EOF; |
| 4630 | if ((ctxt->sax) && (ctxt->sax->endDocument != NULL)) |
| 4631 | ctxt->sax->endDocument(ctxt->userData); |
| 4632 | } |
| 4633 | } |
| 4634 | if ((ctxt->myDoc != NULL) && |
| 4635 | ((terminate) || (ctxt->instate == XML_PARSER_EOF) || |
| 4636 | (ctxt->instate == XML_PARSER_EPILOG))) { |
| 4637 | xmlDtdPtr dtd; |
| 4638 | dtd = xmlGetIntSubset(ctxt->myDoc); |
| 4639 | if (dtd == NULL) |
| 4640 | ctxt->myDoc->intSubset = |
| 4641 | xmlCreateIntSubset(ctxt->myDoc, BAD_CAST "HTML", |
| 4642 | BAD_CAST "-//W3C//DTD HTML 4.0 Transitional//EN", |
| 4643 | BAD_CAST "http://www.w3.org/TR/REC-html40/loose.dtd"); |
| 4644 | } |
| 4645 | #ifdef DEBUG_PUSH |
| 4646 | xmlGenericError(xmlGenericErrorContext, "HPP: done %d\n", ret); |
| 4647 | #endif |
| 4648 | return(ret); |
| 4649 | } |
| 4650 | |
| 4651 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4652 | * htmlParseChunk: |
| 4653 | * @ctxt: an XML parser context |
| 4654 | * @chunk: an char array |
| 4655 | * @size: the size in byte of the chunk |
| 4656 | * @terminate: last chunk indicator |
| 4657 | * |
| 4658 | * Parse a Chunk of memory |
| 4659 | * |
| 4660 | * Returns zero if no error, the xmlParserErrors otherwise. |
| 4661 | */ |
| 4662 | int |
| 4663 | htmlParseChunk(htmlParserCtxtPtr ctxt, const char *chunk, int size, |
| 4664 | int terminate) { |
| 4665 | if ((size > 0) && (chunk != NULL) && (ctxt->input != NULL) && |
| 4666 | (ctxt->input->buf != NULL) && (ctxt->instate != XML_PARSER_EOF)) { |
| 4667 | int base = ctxt->input->base - ctxt->input->buf->buffer->content; |
| 4668 | int cur = ctxt->input->cur - ctxt->input->base; |
| 4669 | |
| 4670 | xmlParserInputBufferPush(ctxt->input->buf, size, chunk); |
| 4671 | ctxt->input->base = ctxt->input->buf->buffer->content + base; |
| 4672 | ctxt->input->cur = ctxt->input->base + cur; |
| 4673 | #ifdef DEBUG_PUSH |
| 4674 | xmlGenericError(xmlGenericErrorContext, "HPP: pushed %d\n", size); |
| 4675 | #endif |
| 4676 | |
| 4677 | if ((terminate) || (ctxt->input->buf->buffer->use > 80)) |
| 4678 | htmlParseTryOrFinish(ctxt, terminate); |
| 4679 | } else if (ctxt->instate != XML_PARSER_EOF) { |
| 4680 | xmlParserInputBufferPush(ctxt->input->buf, 0, ""); |
| 4681 | htmlParseTryOrFinish(ctxt, terminate); |
| 4682 | } |
| 4683 | if (terminate) { |
| 4684 | if ((ctxt->instate != XML_PARSER_EOF) && |
| 4685 | (ctxt->instate != XML_PARSER_EPILOG) && |
| 4686 | (ctxt->instate != XML_PARSER_MISC)) { |
| 4687 | ctxt->errNo = XML_ERR_DOCUMENT_END; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4688 | ctxt->wellFormed = 0; |
| 4689 | } |
| 4690 | if (ctxt->instate != XML_PARSER_EOF) { |
| 4691 | if ((ctxt->sax) && (ctxt->sax->endDocument != NULL)) |
| 4692 | ctxt->sax->endDocument(ctxt->userData); |
| 4693 | } |
| 4694 | ctxt->instate = XML_PARSER_EOF; |
| 4695 | } |
| 4696 | return((xmlParserErrors) ctxt->errNo); |
| 4697 | } |
| 4698 | |
| 4699 | /************************************************************************ |
| 4700 | * * |
| 4701 | * User entry points * |
| 4702 | * * |
| 4703 | ************************************************************************/ |
| 4704 | |
| 4705 | /** |
| 4706 | * htmlCreatePushParserCtxt : |
| 4707 | * @sax: a SAX handler |
| 4708 | * @user_data: The user data returned on SAX callbacks |
| 4709 | * @chunk: a pointer to an array of chars |
| 4710 | * @size: number of chars in the array |
| 4711 | * @filename: an optional file name or URI |
| 4712 | * @enc: an optional encoding |
| 4713 | * |
| 4714 | * Create a parser context for using the HTML parser in push mode |
| 4715 | * To allow content encoding detection, @size should be >= 4 |
| 4716 | * The value of @filename is used for fetching external entities |
| 4717 | * and error/warning reports. |
| 4718 | * |
| 4719 | * Returns the new parser context or NULL |
| 4720 | */ |
| 4721 | htmlParserCtxtPtr |
| 4722 | htmlCreatePushParserCtxt(htmlSAXHandlerPtr sax, void *user_data, |
| 4723 | const char *chunk, int size, const char *filename, |
| 4724 | xmlCharEncoding enc) { |
| 4725 | htmlParserCtxtPtr ctxt; |
| 4726 | htmlParserInputPtr inputStream; |
| 4727 | xmlParserInputBufferPtr buf; |
| 4728 | |
Daniel Veillard | d046356 | 2001-10-13 09:15:48 +0000 | [diff] [blame] | 4729 | xmlInitParser(); |
| 4730 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4731 | buf = xmlAllocParserInputBuffer(enc); |
| 4732 | if (buf == NULL) return(NULL); |
| 4733 | |
| 4734 | ctxt = (htmlParserCtxtPtr) xmlMalloc(sizeof(htmlParserCtxt)); |
| 4735 | if (ctxt == NULL) { |
| 4736 | xmlFree(buf); |
| 4737 | return(NULL); |
| 4738 | } |
| 4739 | memset(ctxt, 0, sizeof(htmlParserCtxt)); |
| 4740 | htmlInitParserCtxt(ctxt); |
| 4741 | if (sax != NULL) { |
| 4742 | if (ctxt->sax != &htmlDefaultSAXHandler) |
| 4743 | xmlFree(ctxt->sax); |
| 4744 | ctxt->sax = (htmlSAXHandlerPtr) xmlMalloc(sizeof(htmlSAXHandler)); |
| 4745 | if (ctxt->sax == NULL) { |
| 4746 | xmlFree(buf); |
| 4747 | xmlFree(ctxt); |
| 4748 | return(NULL); |
| 4749 | } |
| 4750 | memcpy(ctxt->sax, sax, sizeof(htmlSAXHandler)); |
| 4751 | if (user_data != NULL) |
| 4752 | ctxt->userData = user_data; |
| 4753 | } |
| 4754 | if (filename == NULL) { |
| 4755 | ctxt->directory = NULL; |
| 4756 | } else { |
| 4757 | ctxt->directory = xmlParserGetDirectory(filename); |
| 4758 | } |
| 4759 | |
| 4760 | inputStream = htmlNewInputStream(ctxt); |
| 4761 | if (inputStream == NULL) { |
| 4762 | xmlFreeParserCtxt(ctxt); |
| 4763 | return(NULL); |
| 4764 | } |
| 4765 | |
| 4766 | if (filename == NULL) |
| 4767 | inputStream->filename = NULL; |
| 4768 | else |
| 4769 | inputStream->filename = xmlMemStrdup(filename); |
| 4770 | inputStream->buf = buf; |
| 4771 | inputStream->base = inputStream->buf->buffer->content; |
| 4772 | inputStream->cur = inputStream->buf->buffer->content; |
| 4773 | |
| 4774 | inputPush(ctxt, inputStream); |
| 4775 | |
| 4776 | if ((size > 0) && (chunk != NULL) && (ctxt->input != NULL) && |
| 4777 | (ctxt->input->buf != NULL)) { |
| 4778 | xmlParserInputBufferPush(ctxt->input->buf, size, chunk); |
| 4779 | #ifdef DEBUG_PUSH |
| 4780 | xmlGenericError(xmlGenericErrorContext, "HPP: pushed %d\n", size); |
| 4781 | #endif |
| 4782 | } |
| 4783 | |
| 4784 | return(ctxt); |
| 4785 | } |
| 4786 | |
| 4787 | /** |
| 4788 | * htmlSAXParseDoc : |
| 4789 | * @cur: a pointer to an array of xmlChar |
| 4790 | * @encoding: a free form C string describing the HTML document encoding, or NULL |
| 4791 | * @sax: the SAX handler block |
| 4792 | * @userData: if using SAX, this pointer will be provided on callbacks. |
| 4793 | * |
Daniel Veillard | 4d65a1c | 2001-07-04 22:06:23 +0000 | [diff] [blame] | 4794 | * Parse an HTML in-memory document. If sax is not NULL, use the SAX callbacks |
| 4795 | * to handle parse events. If sax is NULL, fallback to the default DOM |
| 4796 | * behavior and return a tree. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4797 | * |
Daniel Veillard | 4d65a1c | 2001-07-04 22:06:23 +0000 | [diff] [blame] | 4798 | * Returns the resulting document tree unless SAX is NULL or the document is |
| 4799 | * not well formed. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4800 | */ |
| 4801 | |
| 4802 | htmlDocPtr |
| 4803 | htmlSAXParseDoc(xmlChar *cur, const char *encoding, htmlSAXHandlerPtr sax, void *userData) { |
| 4804 | htmlDocPtr ret; |
| 4805 | htmlParserCtxtPtr ctxt; |
| 4806 | |
Daniel Veillard | d046356 | 2001-10-13 09:15:48 +0000 | [diff] [blame] | 4807 | xmlInitParser(); |
| 4808 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4809 | if (cur == NULL) return(NULL); |
| 4810 | |
| 4811 | |
| 4812 | ctxt = htmlCreateDocParserCtxt(cur, encoding); |
| 4813 | if (ctxt == NULL) return(NULL); |
| 4814 | if (sax != NULL) { |
| 4815 | ctxt->sax = sax; |
| 4816 | ctxt->userData = userData; |
| 4817 | } |
| 4818 | |
| 4819 | htmlParseDocument(ctxt); |
| 4820 | ret = ctxt->myDoc; |
| 4821 | if (sax != NULL) { |
| 4822 | ctxt->sax = NULL; |
| 4823 | ctxt->userData = NULL; |
| 4824 | } |
| 4825 | htmlFreeParserCtxt(ctxt); |
| 4826 | |
| 4827 | return(ret); |
| 4828 | } |
| 4829 | |
| 4830 | /** |
| 4831 | * htmlParseDoc : |
| 4832 | * @cur: a pointer to an array of xmlChar |
| 4833 | * @encoding: a free form C string describing the HTML document encoding, or NULL |
| 4834 | * |
| 4835 | * parse an HTML in-memory document and build a tree. |
| 4836 | * |
| 4837 | * Returns the resulting document tree |
| 4838 | */ |
| 4839 | |
| 4840 | htmlDocPtr |
| 4841 | htmlParseDoc(xmlChar *cur, const char *encoding) { |
| 4842 | return(htmlSAXParseDoc(cur, encoding, NULL, NULL)); |
| 4843 | } |
| 4844 | |
| 4845 | |
| 4846 | /** |
| 4847 | * htmlCreateFileParserCtxt : |
| 4848 | * @filename: the filename |
| 4849 | * @encoding: a free form C string describing the HTML document encoding, or NULL |
| 4850 | * |
| 4851 | * Create a parser context for a file content. |
| 4852 | * Automatic support for ZLIB/Compress compressed document is provided |
| 4853 | * by default if found at compile-time. |
| 4854 | * |
| 4855 | * Returns the new parser context or NULL |
| 4856 | */ |
| 4857 | htmlParserCtxtPtr |
| 4858 | htmlCreateFileParserCtxt(const char *filename, const char *encoding) |
| 4859 | { |
| 4860 | htmlParserCtxtPtr ctxt; |
| 4861 | htmlParserInputPtr inputStream; |
| 4862 | xmlParserInputBufferPtr buf; |
| 4863 | /* htmlCharEncoding enc; */ |
| 4864 | xmlChar *content, *content_line = (xmlChar *) "charset="; |
| 4865 | |
| 4866 | buf = xmlParserInputBufferCreateFilename(filename, XML_CHAR_ENCODING_NONE); |
| 4867 | if (buf == NULL) return(NULL); |
| 4868 | |
| 4869 | ctxt = (htmlParserCtxtPtr) xmlMalloc(sizeof(htmlParserCtxt)); |
| 4870 | if (ctxt == NULL) { |
| 4871 | perror("malloc"); |
| 4872 | return(NULL); |
| 4873 | } |
| 4874 | memset(ctxt, 0, sizeof(htmlParserCtxt)); |
| 4875 | htmlInitParserCtxt(ctxt); |
| 4876 | inputStream = (htmlParserInputPtr) xmlMalloc(sizeof(htmlParserInput)); |
| 4877 | if (inputStream == NULL) { |
| 4878 | perror("malloc"); |
| 4879 | xmlFree(ctxt); |
| 4880 | return(NULL); |
| 4881 | } |
| 4882 | memset(inputStream, 0, sizeof(htmlParserInput)); |
| 4883 | |
| 4884 | inputStream->filename = xmlMemStrdup(filename); |
| 4885 | inputStream->line = 1; |
| 4886 | inputStream->col = 1; |
| 4887 | inputStream->buf = buf; |
| 4888 | inputStream->directory = NULL; |
| 4889 | |
| 4890 | inputStream->base = inputStream->buf->buffer->content; |
| 4891 | inputStream->cur = inputStream->buf->buffer->content; |
| 4892 | inputStream->free = NULL; |
| 4893 | |
| 4894 | inputPush(ctxt, inputStream); |
| 4895 | |
| 4896 | /* set encoding */ |
| 4897 | if (encoding) { |
| 4898 | content = xmlMalloc (xmlStrlen(content_line) + strlen(encoding) + 1); |
| 4899 | if (content) { |
| 4900 | strcpy ((char *)content, (char *)content_line); |
| 4901 | strcat ((char *)content, (char *)encoding); |
| 4902 | htmlCheckEncoding (ctxt, content); |
| 4903 | xmlFree (content); |
| 4904 | } |
| 4905 | } |
| 4906 | |
| 4907 | return(ctxt); |
| 4908 | } |
| 4909 | |
| 4910 | /** |
| 4911 | * htmlSAXParseFile : |
| 4912 | * @filename: the filename |
| 4913 | * @encoding: a free form C string describing the HTML document encoding, or NULL |
| 4914 | * @sax: the SAX handler block |
| 4915 | * @userData: if using SAX, this pointer will be provided on callbacks. |
| 4916 | * |
| 4917 | * parse an HTML file and build a tree. Automatic support for ZLIB/Compress |
| 4918 | * compressed document is provided by default if found at compile-time. |
| 4919 | * It use the given SAX function block to handle the parsing callback. |
| 4920 | * If sax is NULL, fallback to the default DOM tree building routines. |
| 4921 | * |
Daniel Veillard | 4d65a1c | 2001-07-04 22:06:23 +0000 | [diff] [blame] | 4922 | * Returns the resulting document tree unless SAX is NULL or the document is |
| 4923 | * not well formed. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4924 | */ |
| 4925 | |
| 4926 | htmlDocPtr |
| 4927 | htmlSAXParseFile(const char *filename, const char *encoding, htmlSAXHandlerPtr sax, |
| 4928 | void *userData) { |
| 4929 | htmlDocPtr ret; |
| 4930 | htmlParserCtxtPtr ctxt; |
| 4931 | htmlSAXHandlerPtr oldsax = NULL; |
| 4932 | |
Daniel Veillard | d046356 | 2001-10-13 09:15:48 +0000 | [diff] [blame] | 4933 | xmlInitParser(); |
| 4934 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4935 | ctxt = htmlCreateFileParserCtxt(filename, encoding); |
| 4936 | if (ctxt == NULL) return(NULL); |
| 4937 | if (sax != NULL) { |
| 4938 | oldsax = ctxt->sax; |
| 4939 | ctxt->sax = sax; |
| 4940 | ctxt->userData = userData; |
| 4941 | } |
| 4942 | |
| 4943 | htmlParseDocument(ctxt); |
| 4944 | |
| 4945 | ret = ctxt->myDoc; |
| 4946 | if (sax != NULL) { |
| 4947 | ctxt->sax = oldsax; |
| 4948 | ctxt->userData = NULL; |
| 4949 | } |
| 4950 | htmlFreeParserCtxt(ctxt); |
| 4951 | |
| 4952 | return(ret); |
| 4953 | } |
| 4954 | |
| 4955 | /** |
| 4956 | * htmlParseFile : |
| 4957 | * @filename: the filename |
| 4958 | * @encoding: a free form C string describing the HTML document encoding, or NULL |
| 4959 | * |
| 4960 | * parse an HTML file and build a tree. Automatic support for ZLIB/Compress |
| 4961 | * compressed document is provided by default if found at compile-time. |
| 4962 | * |
| 4963 | * Returns the resulting document tree |
| 4964 | */ |
| 4965 | |
| 4966 | htmlDocPtr |
| 4967 | htmlParseFile(const char *filename, const char *encoding) { |
| 4968 | return(htmlSAXParseFile(filename, encoding, NULL, NULL)); |
| 4969 | } |
| 4970 | |
| 4971 | /** |
| 4972 | * htmlHandleOmittedElem: |
| 4973 | * @val: int 0 or 1 |
| 4974 | * |
| 4975 | * Set and return the previous value for handling HTML omitted tags. |
| 4976 | * |
| 4977 | * Returns the last value for 0 for no handling, 1 for auto insertion. |
| 4978 | */ |
| 4979 | |
| 4980 | int |
| 4981 | htmlHandleOmittedElem(int val) { |
| 4982 | int old = htmlOmittedDefaultValue; |
| 4983 | |
| 4984 | htmlOmittedDefaultValue = val; |
| 4985 | return(old); |
| 4986 | } |
| 4987 | |
| 4988 | #endif /* LIBXML_HTML_ENABLED */ |