Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1 | /* |
| 2 | * HTMLtree.c : implemetation of access function for an HTML tree. |
| 3 | * |
| 4 | * See Copyright for the status of this software. |
| 5 | * |
| 6 | * Daniel.Veillard@w3.org |
| 7 | */ |
| 8 | |
| 9 | |
| 10 | #ifdef WIN32 |
| 11 | #include "win32config.h" |
| 12 | #else |
| 13 | #include "config.h" |
| 14 | #endif |
| 15 | |
| 16 | #include <libxml/xmlversion.h> |
| 17 | #ifdef LIBXML_HTML_ENABLED |
| 18 | |
| 19 | #include <stdio.h> |
| 20 | #include <string.h> /* for memset() only ! */ |
| 21 | |
| 22 | #ifdef HAVE_CTYPE_H |
| 23 | #include <ctype.h> |
| 24 | #endif |
| 25 | #ifdef HAVE_STDLIB_H |
| 26 | #include <stdlib.h> |
| 27 | #endif |
| 28 | |
| 29 | #include <libxml/xmlmemory.h> |
| 30 | #include <libxml/HTMLparser.h> |
| 31 | #include <libxml/HTMLtree.h> |
| 32 | #include <libxml/entities.h> |
| 33 | #include <libxml/valid.h> |
| 34 | #include <libxml/xmlerror.h> |
| 35 | #include <libxml/parserInternals.h> |
| 36 | |
| 37 | /************************************************************************ |
| 38 | * * |
| 39 | * Getting/Setting encoding meta tags * |
| 40 | * * |
| 41 | ************************************************************************/ |
| 42 | |
| 43 | /** |
| 44 | * htmlGetMetaEncoding: |
| 45 | * @doc: the document |
| 46 | * |
| 47 | * Encoding definition lookup in the Meta tags |
| 48 | * |
| 49 | * Returns the current encoding as flagged in the HTML source |
| 50 | */ |
| 51 | const xmlChar * |
| 52 | htmlGetMetaEncoding(htmlDocPtr doc) { |
| 53 | htmlNodePtr cur; |
| 54 | const xmlChar *content; |
| 55 | const xmlChar *encoding; |
| 56 | |
| 57 | if (doc == NULL) |
| 58 | return(NULL); |
| 59 | cur = doc->children; |
| 60 | |
| 61 | /* |
| 62 | * Search the html |
| 63 | */ |
| 64 | while (cur != NULL) { |
| 65 | if (cur->name != NULL) { |
| 66 | if (xmlStrEqual(cur->name, BAD_CAST"html")) |
| 67 | break; |
| 68 | if (xmlStrEqual(cur->name, BAD_CAST"head")) |
| 69 | goto found_head; |
| 70 | if (xmlStrEqual(cur->name, BAD_CAST"meta")) |
| 71 | goto found_meta; |
| 72 | } |
| 73 | cur = cur->next; |
| 74 | } |
| 75 | if (cur == NULL) |
| 76 | return(NULL); |
| 77 | cur = cur->children; |
| 78 | |
| 79 | /* |
| 80 | * Search the head |
| 81 | */ |
| 82 | while (cur != NULL) { |
| 83 | if (cur->name != NULL) { |
| 84 | if (xmlStrEqual(cur->name, BAD_CAST"head")) |
| 85 | break; |
| 86 | if (xmlStrEqual(cur->name, BAD_CAST"meta")) |
| 87 | goto found_meta; |
| 88 | } |
| 89 | cur = cur->next; |
| 90 | } |
| 91 | if (cur == NULL) |
| 92 | return(NULL); |
| 93 | found_head: |
| 94 | cur = cur->children; |
| 95 | |
| 96 | /* |
| 97 | * Search the meta elements |
| 98 | */ |
| 99 | found_meta: |
| 100 | while (cur != NULL) { |
| 101 | if (cur->name != NULL) { |
| 102 | if (xmlStrEqual(cur->name, BAD_CAST"meta")) { |
| 103 | xmlAttrPtr attr = cur->properties; |
| 104 | int http; |
| 105 | const xmlChar *value; |
| 106 | |
| 107 | content = NULL; |
| 108 | http = 0; |
| 109 | while (attr != NULL) { |
| 110 | if ((attr->children != NULL) && |
| 111 | (attr->children->type == XML_TEXT_NODE) && |
| 112 | (attr->children->next == NULL)) { |
| 113 | #ifndef XML_USE_BUFFER_CONTENT |
| 114 | value = attr->children->content; |
| 115 | #else |
| 116 | value = xmlBufferContent(attr->children->content); |
| 117 | #endif |
| 118 | if ((!xmlStrcasecmp(attr->name, BAD_CAST"http-equiv")) |
| 119 | && (!xmlStrcasecmp(value, BAD_CAST"Content-Type"))) |
| 120 | http = 1; |
| 121 | else if ((value != NULL) |
| 122 | && (!xmlStrcasecmp(attr->name, BAD_CAST"content"))) |
| 123 | content = value; |
| 124 | if ((http != 0) && (content != NULL)) |
| 125 | goto found_content; |
| 126 | } |
| 127 | attr = attr->next; |
| 128 | } |
| 129 | } |
| 130 | } |
| 131 | cur = cur->next; |
| 132 | } |
| 133 | return(NULL); |
| 134 | |
| 135 | found_content: |
| 136 | encoding = xmlStrstr(content, BAD_CAST"charset="); |
| 137 | if (encoding == NULL) |
| 138 | encoding = xmlStrstr(content, BAD_CAST"Charset="); |
| 139 | if (encoding == NULL) |
| 140 | encoding = xmlStrstr(content, BAD_CAST"CHARSET="); |
| 141 | if (encoding != NULL) { |
| 142 | encoding += 8; |
| 143 | } else { |
| 144 | encoding = xmlStrstr(content, BAD_CAST"charset ="); |
| 145 | if (encoding == NULL) |
| 146 | encoding = xmlStrstr(content, BAD_CAST"Charset ="); |
| 147 | if (encoding == NULL) |
| 148 | encoding = xmlStrstr(content, BAD_CAST"CHARSET ="); |
| 149 | if (encoding != NULL) |
| 150 | encoding += 9; |
| 151 | } |
| 152 | if (encoding != NULL) { |
| 153 | while ((*encoding == ' ') || (*encoding == '\t')) encoding++; |
| 154 | } |
| 155 | return(encoding); |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * htmlSetMetaEncoding: |
| 160 | * @doc: the document |
| 161 | * @encoding: the encoding string |
| 162 | * |
| 163 | * Sets the current encoding in the Meta tags |
| 164 | * NOTE: this will not change the document content encoding, just |
| 165 | * the META flag associated. |
| 166 | * |
| 167 | * Returns 0 in case of success and -1 in case of error |
| 168 | */ |
| 169 | int |
| 170 | htmlSetMetaEncoding(htmlDocPtr doc, const xmlChar *encoding) { |
| 171 | htmlNodePtr cur, meta; |
| 172 | const xmlChar *content; |
| 173 | char newcontent[100]; |
| 174 | |
| 175 | |
| 176 | if (doc == NULL) |
| 177 | return(-1); |
| 178 | |
| 179 | if (encoding != NULL) { |
| 180 | #ifdef HAVE_SNPRINTF |
| 181 | snprintf(newcontent, sizeof(newcontent), "text/html; charset=%s", |
| 182 | encoding); |
| 183 | #else |
| 184 | sprintf(newcontent, "text/html; charset=%s", encoding); |
| 185 | #endif |
| 186 | newcontent[sizeof(newcontent) - 1] = 0; |
| 187 | } |
| 188 | |
| 189 | cur = doc->children; |
| 190 | |
| 191 | /* |
| 192 | * Search the html |
| 193 | */ |
| 194 | while (cur != NULL) { |
| 195 | if (cur->name != NULL) { |
| 196 | if (xmlStrEqual(cur->name, BAD_CAST"html")) |
| 197 | break; |
| 198 | if (xmlStrEqual(cur->name, BAD_CAST"body")) { |
| 199 | if (encoding == NULL) |
| 200 | return(0); |
| 201 | meta = xmlNewDocNode(doc, NULL, BAD_CAST"head", NULL); |
| 202 | xmlAddPrevSibling(cur, meta); |
| 203 | cur = meta; |
| 204 | meta = xmlNewDocNode(doc, NULL, BAD_CAST"meta", NULL); |
| 205 | xmlAddChild(cur, meta); |
| 206 | xmlNewProp(meta, BAD_CAST"http-equiv", BAD_CAST"Content-Type"); |
| 207 | xmlNewProp(meta, BAD_CAST"content", BAD_CAST newcontent); |
| 208 | return(0); |
| 209 | } |
| 210 | if (xmlStrEqual(cur->name, BAD_CAST"head")) |
| 211 | goto found_head; |
| 212 | if (xmlStrEqual(cur->name, BAD_CAST"meta")) |
| 213 | goto found_meta; |
| 214 | } |
| 215 | cur = cur->next; |
| 216 | } |
| 217 | if (cur == NULL) |
| 218 | return(-1); |
| 219 | cur = cur->children; |
| 220 | |
| 221 | /* |
| 222 | * Search the head |
| 223 | */ |
| 224 | while (cur != NULL) { |
| 225 | if (cur->name != NULL) { |
| 226 | if (xmlStrEqual(cur->name, BAD_CAST"head")) |
| 227 | break; |
| 228 | if (xmlStrEqual(cur->name, BAD_CAST"body")) { |
| 229 | if (encoding == NULL) |
| 230 | return(0); |
| 231 | meta = xmlNewDocNode(doc, NULL, BAD_CAST"head", NULL); |
| 232 | xmlAddPrevSibling(cur, meta); |
| 233 | cur = meta; |
| 234 | meta = xmlNewDocNode(doc, NULL, BAD_CAST"meta", NULL); |
| 235 | xmlAddChild(cur, meta); |
| 236 | xmlNewProp(meta, BAD_CAST"http-equiv", BAD_CAST"Content-Type"); |
| 237 | xmlNewProp(meta, BAD_CAST"content", BAD_CAST newcontent); |
| 238 | return(0); |
| 239 | } |
| 240 | if (xmlStrEqual(cur->name, BAD_CAST"meta")) |
| 241 | goto found_meta; |
| 242 | } |
| 243 | cur = cur->next; |
| 244 | } |
| 245 | if (cur == NULL) |
| 246 | return(-1); |
| 247 | found_head: |
| 248 | if (cur->children == NULL) { |
| 249 | if (encoding == NULL) |
| 250 | return(0); |
| 251 | meta = xmlNewDocNode(doc, NULL, BAD_CAST"meta", NULL); |
| 252 | xmlAddChild(cur, meta); |
| 253 | xmlNewProp(meta, BAD_CAST"http-equiv", BAD_CAST"Content-Type"); |
| 254 | xmlNewProp(meta, BAD_CAST"content", BAD_CAST newcontent); |
| 255 | return(0); |
| 256 | } |
| 257 | cur = cur->children; |
| 258 | |
| 259 | found_meta: |
| 260 | if (encoding != NULL) { |
| 261 | /* |
| 262 | * Create a new Meta element with the right aatributes |
| 263 | */ |
| 264 | |
| 265 | meta = xmlNewDocNode(doc, NULL, BAD_CAST"meta", NULL); |
| 266 | xmlAddPrevSibling(cur, meta); |
| 267 | xmlNewProp(meta, BAD_CAST"http-equiv", BAD_CAST"Content-Type"); |
| 268 | xmlNewProp(meta, BAD_CAST"content", BAD_CAST newcontent); |
| 269 | } |
| 270 | |
| 271 | /* |
| 272 | * Search and destroy all the remaining the meta elements carrying |
| 273 | * encoding informations |
| 274 | */ |
| 275 | while (cur != NULL) { |
| 276 | if (cur->name != NULL) { |
| 277 | if (xmlStrEqual(cur->name, BAD_CAST"meta")) { |
| 278 | xmlAttrPtr attr = cur->properties; |
| 279 | int http; |
| 280 | const xmlChar *value; |
| 281 | |
| 282 | content = NULL; |
| 283 | http = 0; |
| 284 | while (attr != NULL) { |
| 285 | if ((attr->children != NULL) && |
| 286 | (attr->children->type == XML_TEXT_NODE) && |
| 287 | (attr->children->next == NULL)) { |
| 288 | #ifndef XML_USE_BUFFER_CONTENT |
| 289 | value = attr->children->content; |
| 290 | #else |
| 291 | value = xmlBufferContent(attr->children->content); |
| 292 | #endif |
| 293 | if ((!xmlStrcasecmp(attr->name, BAD_CAST"http-equiv")) |
| 294 | && (!xmlStrcasecmp(value, BAD_CAST"Content-Type"))) |
| 295 | http = 1; |
| 296 | else if ((value != NULL) |
| 297 | && (!xmlStrcasecmp(attr->name, BAD_CAST"content"))) |
| 298 | content = value; |
| 299 | if ((http != 0) && (content != NULL)) |
| 300 | break; |
| 301 | } |
| 302 | attr = attr->next; |
| 303 | } |
| 304 | if ((http != 0) && (content != NULL)) { |
| 305 | meta = cur; |
| 306 | cur = cur->next; |
| 307 | xmlUnlinkNode(meta); |
| 308 | xmlFreeNode(meta); |
| 309 | continue; |
| 310 | } |
| 311 | |
| 312 | } |
| 313 | } |
| 314 | cur = cur->next; |
| 315 | } |
| 316 | return(0); |
| 317 | } |
| 318 | |
| 319 | /************************************************************************ |
| 320 | * * |
| 321 | * Dumping HTML tree content to a simple buffer * |
| 322 | * * |
| 323 | ************************************************************************/ |
| 324 | |
| 325 | static void |
| 326 | htmlDocContentDump(xmlBufferPtr buf, xmlDocPtr cur); |
| 327 | |
| 328 | /** |
| 329 | * htmlDtdDump: |
| 330 | * @buf: the HTML buffer output |
| 331 | * @doc: the document |
| 332 | * |
| 333 | * Dump the HTML document DTD, if any. |
| 334 | */ |
| 335 | static void |
| 336 | htmlDtdDump(xmlBufferPtr buf, xmlDocPtr doc) { |
| 337 | xmlDtdPtr cur = doc->intSubset; |
| 338 | |
| 339 | if (cur == NULL) { |
| 340 | xmlGenericError(xmlGenericErrorContext, |
| 341 | "htmlDtdDump : no internal subset\n"); |
| 342 | return; |
| 343 | } |
| 344 | xmlBufferWriteChar(buf, "<!DOCTYPE "); |
| 345 | xmlBufferWriteCHAR(buf, cur->name); |
| 346 | if (cur->ExternalID != NULL) { |
| 347 | xmlBufferWriteChar(buf, " PUBLIC "); |
| 348 | xmlBufferWriteQuotedString(buf, cur->ExternalID); |
| 349 | if (cur->SystemID != NULL) { |
| 350 | xmlBufferWriteChar(buf, " "); |
| 351 | xmlBufferWriteQuotedString(buf, cur->SystemID); |
| 352 | } |
| 353 | } else if (cur->SystemID != NULL) { |
| 354 | xmlBufferWriteChar(buf, " SYSTEM "); |
| 355 | xmlBufferWriteQuotedString(buf, cur->SystemID); |
| 356 | } |
| 357 | xmlBufferWriteChar(buf, ">\n"); |
| 358 | } |
| 359 | |
| 360 | /** |
| 361 | * htmlAttrDump: |
| 362 | * @buf: the HTML buffer output |
| 363 | * @doc: the document |
| 364 | * @cur: the attribute pointer |
| 365 | * |
| 366 | * Dump an HTML attribute |
| 367 | */ |
| 368 | static void |
| 369 | htmlAttrDump(xmlBufferPtr buf, xmlDocPtr doc, xmlAttrPtr cur) { |
| 370 | xmlChar *value; |
| 371 | |
| 372 | if (cur == NULL) { |
| 373 | xmlGenericError(xmlGenericErrorContext, |
| 374 | "htmlAttrDump : property == NULL\n"); |
| 375 | return; |
| 376 | } |
| 377 | xmlBufferWriteChar(buf, " "); |
| 378 | xmlBufferWriteCHAR(buf, cur->name); |
| 379 | if (cur->children != NULL) { |
| 380 | value = xmlNodeListGetString(doc, cur->children, 0); |
| 381 | if (value) { |
| 382 | xmlBufferWriteChar(buf, "="); |
| 383 | xmlBufferWriteQuotedString(buf, value); |
| 384 | xmlFree(value); |
| 385 | } else { |
| 386 | xmlBufferWriteChar(buf, "=\"\""); |
| 387 | } |
| 388 | } |
| 389 | } |
| 390 | |
| 391 | /** |
| 392 | * htmlAttrListDump: |
| 393 | * @buf: the HTML buffer output |
| 394 | * @doc: the document |
| 395 | * @cur: the first attribute pointer |
| 396 | * |
| 397 | * Dump a list of HTML attributes |
| 398 | */ |
| 399 | static void |
| 400 | htmlAttrListDump(xmlBufferPtr buf, xmlDocPtr doc, xmlAttrPtr cur) { |
| 401 | if (cur == NULL) { |
| 402 | xmlGenericError(xmlGenericErrorContext, |
| 403 | "htmlAttrListDump : property == NULL\n"); |
| 404 | return; |
| 405 | } |
| 406 | while (cur != NULL) { |
| 407 | htmlAttrDump(buf, doc, cur); |
| 408 | cur = cur->next; |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | |
| 413 | void |
| 414 | htmlNodeDump(xmlBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur); |
| 415 | /** |
| 416 | * htmlNodeListDump: |
| 417 | * @buf: the HTML buffer output |
| 418 | * @doc: the document |
| 419 | * @cur: the first node |
| 420 | * |
| 421 | * Dump an HTML node list, recursive behaviour,children are printed too. |
| 422 | */ |
| 423 | static void |
| 424 | htmlNodeListDump(xmlBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur) { |
| 425 | if (cur == NULL) { |
| 426 | xmlGenericError(xmlGenericErrorContext, |
| 427 | "htmlNodeListDump : node == NULL\n"); |
| 428 | return; |
| 429 | } |
| 430 | while (cur != NULL) { |
| 431 | htmlNodeDump(buf, doc, cur); |
| 432 | cur = cur->next; |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * htmlNodeDump: |
| 438 | * @buf: the HTML buffer output |
| 439 | * @doc: the document |
| 440 | * @cur: the current node |
| 441 | * |
| 442 | * Dump an HTML node, recursive behaviour,children are printed too. |
| 443 | */ |
| 444 | void |
| 445 | htmlNodeDump(xmlBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur) { |
| 446 | htmlElemDescPtr info; |
| 447 | |
| 448 | if (cur == NULL) { |
| 449 | xmlGenericError(xmlGenericErrorContext, |
| 450 | "htmlNodeDump : node == NULL\n"); |
| 451 | return; |
| 452 | } |
| 453 | /* |
| 454 | * Special cases. |
| 455 | */ |
| 456 | if (cur->type == XML_DTD_NODE) |
| 457 | return; |
| 458 | if (cur->type == XML_HTML_DOCUMENT_NODE) { |
| 459 | htmlDocContentDump(buf, (xmlDocPtr) cur); |
| 460 | return; |
| 461 | } |
| 462 | if (cur->type == HTML_TEXT_NODE) { |
| 463 | if (cur->content != NULL) { |
| 464 | if ((cur->name == xmlStringText) || |
| 465 | (cur->name != xmlStringTextNoenc)) { |
| 466 | xmlChar *buffer; |
| 467 | |
| 468 | #ifndef XML_USE_BUFFER_CONTENT |
| 469 | buffer = xmlEncodeEntitiesReentrant(doc, cur->content); |
| 470 | #else |
| 471 | buffer = xmlEncodeEntitiesReentrant(doc, |
| 472 | xmlBufferContent(cur->content)); |
| 473 | #endif |
| 474 | if (buffer != NULL) { |
| 475 | xmlBufferWriteCHAR(buf, buffer); |
| 476 | xmlFree(buffer); |
| 477 | } |
| 478 | } else { |
| 479 | xmlBufferWriteCHAR(buf, cur->content); |
| 480 | } |
| 481 | } |
| 482 | return; |
| 483 | } |
| 484 | if (cur->type == HTML_COMMENT_NODE) { |
| 485 | if (cur->content != NULL) { |
| 486 | xmlBufferWriteChar(buf, "<!--"); |
| 487 | #ifndef XML_USE_BUFFER_CONTENT |
| 488 | xmlBufferWriteCHAR(buf, cur->content); |
| 489 | #else |
| 490 | xmlBufferWriteCHAR(buf, xmlBufferContent(cur->content)); |
| 491 | #endif |
| 492 | xmlBufferWriteChar(buf, "-->"); |
| 493 | } |
| 494 | return; |
| 495 | } |
| 496 | if (cur->type == HTML_ENTITY_REF_NODE) { |
| 497 | xmlBufferWriteChar(buf, "&"); |
| 498 | xmlBufferWriteCHAR(buf, cur->name); |
| 499 | xmlBufferWriteChar(buf, ";"); |
| 500 | return; |
| 501 | } |
| 502 | |
| 503 | /* |
| 504 | * Get specific HTmL info for taht node. |
| 505 | */ |
| 506 | info = htmlTagLookup(cur->name); |
| 507 | |
| 508 | xmlBufferWriteChar(buf, "<"); |
| 509 | xmlBufferWriteCHAR(buf, cur->name); |
| 510 | if (cur->properties != NULL) |
| 511 | htmlAttrListDump(buf, doc, cur->properties); |
| 512 | |
| 513 | if ((info != NULL) && (info->empty)) { |
| 514 | xmlBufferWriteChar(buf, ">"); |
| 515 | if (cur->next != NULL) { |
| 516 | if ((cur->next->type != HTML_TEXT_NODE) && |
| 517 | (cur->next->type != HTML_ENTITY_REF_NODE)) |
| 518 | xmlBufferWriteChar(buf, "\n"); |
| 519 | } |
| 520 | return; |
| 521 | } |
| 522 | if ((cur->content == NULL) && (cur->children == NULL)) { |
| 523 | if ((info != NULL) && (info->endTag != 0)) |
| 524 | xmlBufferWriteChar(buf, ">"); |
| 525 | else { |
| 526 | xmlBufferWriteChar(buf, "></"); |
| 527 | xmlBufferWriteCHAR(buf, cur->name); |
| 528 | xmlBufferWriteChar(buf, ">"); |
| 529 | } |
| 530 | if (cur->next != NULL) { |
| 531 | if ((cur->next->type != HTML_TEXT_NODE) && |
| 532 | (cur->next->type != HTML_ENTITY_REF_NODE)) |
| 533 | xmlBufferWriteChar(buf, "\n"); |
| 534 | } |
| 535 | return; |
| 536 | } |
| 537 | xmlBufferWriteChar(buf, ">"); |
| 538 | if (cur->content != NULL) { |
| 539 | xmlChar *buffer; |
| 540 | |
| 541 | #ifndef XML_USE_BUFFER_CONTENT |
| 542 | buffer = xmlEncodeEntitiesReentrant(doc, cur->content); |
| 543 | #else |
| 544 | buffer = xmlEncodeEntitiesReentrant(doc, |
| 545 | xmlBufferContent(cur->content)); |
| 546 | #endif |
| 547 | if (buffer != NULL) { |
| 548 | xmlBufferWriteCHAR(buf, buffer); |
| 549 | xmlFree(buffer); |
| 550 | } |
| 551 | } |
| 552 | if (cur->children != NULL) { |
| 553 | if ((cur->children->type != HTML_TEXT_NODE) && |
| 554 | (cur->children->type != HTML_ENTITY_REF_NODE) && |
| 555 | (cur->children != cur->last)) |
| 556 | xmlBufferWriteChar(buf, "\n"); |
| 557 | htmlNodeListDump(buf, doc, cur->children); |
| 558 | if ((cur->last->type != HTML_TEXT_NODE) && |
| 559 | (cur->last->type != HTML_ENTITY_REF_NODE) && |
| 560 | (cur->children != cur->last)) |
| 561 | xmlBufferWriteChar(buf, "\n"); |
| 562 | } |
| 563 | if (!htmlIsAutoClosed(doc, cur)) { |
| 564 | xmlBufferWriteChar(buf, "</"); |
| 565 | xmlBufferWriteCHAR(buf, cur->name); |
| 566 | xmlBufferWriteChar(buf, ">"); |
| 567 | } |
| 568 | #if 0 |
| 569 | if (!htmlIsAutoClosed(doc, cur)) { |
| 570 | xmlBufferWriteChar(buf, "</"); |
| 571 | xmlBufferWriteCHAR(buf, cur->name); |
| 572 | xmlBufferWriteChar(buf, ">"); |
| 573 | } |
| 574 | #else |
| 575 | xmlBufferWriteChar(buf, "</"); |
| 576 | xmlBufferWriteCHAR(buf, cur->name); |
| 577 | xmlBufferWriteChar(buf, ">"); |
| 578 | #endif |
| 579 | if (cur->next != NULL) { |
| 580 | if ((cur->next->type != HTML_TEXT_NODE) && |
| 581 | (cur->next->type != HTML_ENTITY_REF_NODE)) |
| 582 | xmlBufferWriteChar(buf, "\n"); |
| 583 | } |
| 584 | } |
| 585 | |
| 586 | /** |
| 587 | * htmlNodeDumpFile: |
| 588 | * @out: the FILE pointer |
| 589 | * @doc: the document |
| 590 | * @cur: the current node |
| 591 | * |
| 592 | * Dump an HTML node, recursive behaviour,children are printed too. |
| 593 | */ |
| 594 | void |
| 595 | htmlNodeDumpFile(FILE *out, xmlDocPtr doc, xmlNodePtr cur) { |
| 596 | xmlBufferPtr buf; |
| 597 | |
| 598 | buf = xmlBufferCreate(); |
| 599 | if (buf == NULL) return; |
| 600 | htmlNodeDump(buf, doc, cur); |
| 601 | xmlBufferDump(out, buf); |
| 602 | xmlBufferFree(buf); |
| 603 | } |
| 604 | |
| 605 | /** |
| 606 | * htmlDocContentDump: |
| 607 | * @buf: the HTML buffer output |
| 608 | * @cur: the document |
| 609 | * |
| 610 | * Dump an HTML document. |
| 611 | */ |
| 612 | static void |
| 613 | htmlDocContentDump(xmlBufferPtr buf, xmlDocPtr cur) { |
| 614 | int type; |
| 615 | |
| 616 | /* |
| 617 | * force to output the stuff as HTML, especially for entities |
| 618 | */ |
| 619 | type = cur->type; |
| 620 | cur->type = XML_HTML_DOCUMENT_NODE; |
| 621 | if (cur->intSubset != NULL) |
| 622 | htmlDtdDump(buf, cur); |
| 623 | else { |
| 624 | /* Default to HTML-4.0 transitionnal @@@@ */ |
| 625 | xmlBufferWriteChar(buf, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\">"); |
| 626 | |
| 627 | } |
| 628 | if (cur->children != NULL) { |
| 629 | htmlNodeListDump(buf, cur, cur->children); |
| 630 | } |
| 631 | xmlBufferWriteChar(buf, "\n"); |
| 632 | cur->type = (xmlElementType) type; |
| 633 | } |
| 634 | |
| 635 | /** |
| 636 | * htmlDocDumpMemory: |
| 637 | * @cur: the document |
| 638 | * @mem: OUT: the memory pointer |
| 639 | * @size: OUT: the memory lenght |
| 640 | * |
| 641 | * Dump an HTML document in memory and return the xmlChar * and it's size. |
| 642 | * It's up to the caller to free the memory. |
| 643 | */ |
| 644 | void |
| 645 | htmlDocDumpMemory(xmlDocPtr cur, xmlChar**mem, int *size) { |
| 646 | xmlBufferPtr buf; |
| 647 | |
| 648 | if (cur == NULL) { |
| 649 | #ifdef DEBUG_TREE |
| 650 | xmlGenericError(xmlGenericErrorContext, |
| 651 | "htmlxmlDocDumpMemory : document == NULL\n"); |
| 652 | #endif |
| 653 | *mem = NULL; |
| 654 | *size = 0; |
| 655 | return; |
| 656 | } |
| 657 | buf = xmlBufferCreate(); |
| 658 | if (buf == NULL) { |
| 659 | *mem = NULL; |
| 660 | *size = 0; |
| 661 | return; |
| 662 | } |
| 663 | htmlDocContentDump(buf, cur); |
| 664 | *mem = buf->content; |
| 665 | *size = buf->use; |
Daniel Veillard | 48b2f89 | 2001-02-25 16:11:03 +0000 | [diff] [blame^] | 666 | MEM_CLEANUP(buf, sizeof(xmlBuffer)); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 667 | xmlFree(buf); |
| 668 | } |
| 669 | |
| 670 | |
| 671 | /************************************************************************ |
| 672 | * * |
| 673 | * Dumping HTML tree content to an I/O output buffer * |
| 674 | * * |
| 675 | ************************************************************************/ |
| 676 | |
| 677 | /** |
| 678 | * htmlDtdDump: |
| 679 | * @buf: the HTML buffer output |
| 680 | * @doc: the document |
| 681 | * @encoding: the encoding string |
| 682 | * |
| 683 | * Dump the HTML document DTD, if any. |
| 684 | */ |
| 685 | static void |
| 686 | htmlDtdDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc, const char *encoding) { |
| 687 | xmlDtdPtr cur = doc->intSubset; |
| 688 | |
| 689 | if (cur == NULL) { |
| 690 | xmlGenericError(xmlGenericErrorContext, |
| 691 | "htmlDtdDump : no internal subset\n"); |
| 692 | return; |
| 693 | } |
| 694 | xmlOutputBufferWriteString(buf, "<!DOCTYPE "); |
| 695 | xmlOutputBufferWriteString(buf, (const char *)cur->name); |
| 696 | if (cur->ExternalID != NULL) { |
| 697 | xmlOutputBufferWriteString(buf, " PUBLIC "); |
| 698 | xmlBufferWriteQuotedString(buf->buffer, cur->ExternalID); |
| 699 | if (cur->SystemID != NULL) { |
| 700 | xmlOutputBufferWriteString(buf, " "); |
| 701 | xmlBufferWriteQuotedString(buf->buffer, cur->SystemID); |
| 702 | } |
| 703 | } else if (cur->SystemID != NULL) { |
| 704 | xmlOutputBufferWriteString(buf, " SYSTEM "); |
| 705 | xmlBufferWriteQuotedString(buf->buffer, cur->SystemID); |
| 706 | } |
| 707 | xmlOutputBufferWriteString(buf, ">\n"); |
| 708 | } |
| 709 | |
| 710 | /** |
| 711 | * htmlAttrDump: |
| 712 | * @buf: the HTML buffer output |
| 713 | * @doc: the document |
| 714 | * @cur: the attribute pointer |
| 715 | * @encoding: the encoding string |
| 716 | * |
| 717 | * Dump an HTML attribute |
| 718 | */ |
| 719 | static void |
| 720 | htmlAttrDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc, xmlAttrPtr cur, const char *encoding) { |
| 721 | xmlChar *value; |
| 722 | |
| 723 | if (cur == NULL) { |
| 724 | xmlGenericError(xmlGenericErrorContext, |
| 725 | "htmlAttrDump : property == NULL\n"); |
| 726 | return; |
| 727 | } |
| 728 | xmlOutputBufferWriteString(buf, " "); |
| 729 | xmlOutputBufferWriteString(buf, (const char *)cur->name); |
| 730 | if (cur->children != NULL) { |
| 731 | value = xmlNodeListGetString(doc, cur->children, 0); |
| 732 | if (value) { |
| 733 | xmlOutputBufferWriteString(buf, "="); |
| 734 | xmlBufferWriteQuotedString(buf->buffer, value); |
| 735 | xmlFree(value); |
| 736 | } else { |
| 737 | xmlOutputBufferWriteString(buf, "=\"\""); |
| 738 | } |
| 739 | } |
| 740 | } |
| 741 | |
| 742 | /** |
| 743 | * htmlAttrListDump: |
| 744 | * @buf: the HTML buffer output |
| 745 | * @doc: the document |
| 746 | * @cur: the first attribute pointer |
| 747 | * @encoding: the encoding string |
| 748 | * |
| 749 | * Dump a list of HTML attributes |
| 750 | */ |
| 751 | static void |
| 752 | htmlAttrListDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc, xmlAttrPtr cur, const char *encoding) { |
| 753 | if (cur == NULL) { |
| 754 | xmlGenericError(xmlGenericErrorContext, |
| 755 | "htmlAttrListDump : property == NULL\n"); |
| 756 | return; |
| 757 | } |
| 758 | while (cur != NULL) { |
| 759 | htmlAttrDumpOutput(buf, doc, cur, encoding); |
| 760 | cur = cur->next; |
| 761 | } |
| 762 | } |
| 763 | |
| 764 | |
| 765 | void htmlNodeDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc, |
| 766 | xmlNodePtr cur, const char *encoding); |
| 767 | |
| 768 | /** |
| 769 | * htmlNodeListDump: |
| 770 | * @buf: the HTML buffer output |
| 771 | * @doc: the document |
| 772 | * @cur: the first node |
| 773 | * @encoding: the encoding string |
| 774 | * |
| 775 | * Dump an HTML node list, recursive behaviour,children are printed too. |
| 776 | */ |
| 777 | static void |
| 778 | htmlNodeListDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur, const char *encoding) { |
| 779 | if (cur == NULL) { |
| 780 | xmlGenericError(xmlGenericErrorContext, |
| 781 | "htmlNodeListDump : node == NULL\n"); |
| 782 | return; |
| 783 | } |
| 784 | while (cur != NULL) { |
| 785 | htmlNodeDumpOutput(buf, doc, cur, encoding); |
| 786 | cur = cur->next; |
| 787 | } |
| 788 | } |
| 789 | |
| 790 | /** |
| 791 | * htmlNodeDumpOutput: |
| 792 | * @buf: the HTML buffer output |
| 793 | * @doc: the document |
| 794 | * @cur: the current node |
| 795 | * @encoding: the encoding string |
| 796 | * |
| 797 | * Dump an HTML node, recursive behaviour,children are printed too. |
| 798 | */ |
| 799 | void |
| 800 | htmlNodeDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur, const char *encoding) { |
| 801 | htmlElemDescPtr info; |
| 802 | |
| 803 | if (cur == NULL) { |
| 804 | xmlGenericError(xmlGenericErrorContext, |
| 805 | "htmlNodeDump : node == NULL\n"); |
| 806 | return; |
| 807 | } |
| 808 | /* |
| 809 | * Special cases. |
| 810 | */ |
| 811 | if (cur->type == XML_DTD_NODE) |
| 812 | return; |
| 813 | if (cur->type == XML_HTML_DOCUMENT_NODE) { |
| 814 | htmlDocContentDumpOutput(buf, (xmlDocPtr) cur, encoding); |
| 815 | return; |
| 816 | } |
| 817 | if (cur->type == HTML_TEXT_NODE) { |
| 818 | if (cur->content != NULL) { |
| 819 | if ((cur->name == xmlStringText) || |
| 820 | (cur->name != xmlStringTextNoenc)) { |
| 821 | xmlChar *buffer; |
| 822 | |
| 823 | #ifndef XML_USE_BUFFER_CONTENT |
| 824 | buffer = xmlEncodeEntitiesReentrant(doc, cur->content); |
| 825 | #else |
| 826 | buffer = xmlEncodeEntitiesReentrant(doc, |
| 827 | xmlBufferContent(cur->content)); |
| 828 | #endif |
| 829 | if (buffer != NULL) { |
| 830 | xmlOutputBufferWriteString(buf, (const char *)buffer); |
| 831 | xmlFree(buffer); |
| 832 | } |
| 833 | } else { |
| 834 | xmlOutputBufferWriteString(buf, (const char *)cur->content); |
| 835 | } |
| 836 | } |
| 837 | return; |
| 838 | } |
| 839 | if (cur->type == HTML_COMMENT_NODE) { |
| 840 | if (cur->content != NULL) { |
| 841 | xmlOutputBufferWriteString(buf, "<!--"); |
| 842 | #ifndef XML_USE_BUFFER_CONTENT |
| 843 | xmlOutputBufferWriteString(buf, (const char *)cur->content); |
| 844 | #else |
| 845 | xmlOutputBufferWriteString(buf, (const char *) |
| 846 | xmlBufferContent(cur->content)); |
| 847 | #endif |
| 848 | xmlOutputBufferWriteString(buf, "-->"); |
| 849 | } |
| 850 | return; |
| 851 | } |
| 852 | if (cur->type == HTML_ENTITY_REF_NODE) { |
| 853 | xmlOutputBufferWriteString(buf, "&"); |
| 854 | xmlOutputBufferWriteString(buf, (const char *)cur->name); |
| 855 | xmlOutputBufferWriteString(buf, ";"); |
| 856 | return; |
| 857 | } |
| 858 | if (cur->type == HTML_PRESERVE_NODE) { |
| 859 | if (cur->content != NULL) { |
| 860 | #ifndef XML_USE_BUFFER_CONTENT |
| 861 | xmlOutputBufferWriteString(buf, (const char *)cur->content); |
| 862 | #else |
| 863 | xmlOutputBufferWriteString(buf, (const char *) |
| 864 | xmlBufferContent(cur->content)); |
| 865 | #endif |
| 866 | } |
| 867 | return; |
| 868 | } |
| 869 | |
| 870 | /* |
| 871 | * Get specific HTmL info for taht node. |
| 872 | */ |
| 873 | info = htmlTagLookup(cur->name); |
| 874 | |
| 875 | xmlOutputBufferWriteString(buf, "<"); |
| 876 | xmlOutputBufferWriteString(buf, (const char *)cur->name); |
| 877 | if (cur->properties != NULL) |
| 878 | htmlAttrListDumpOutput(buf, doc, cur->properties, encoding); |
| 879 | |
| 880 | if ((info != NULL) && (info->empty)) { |
| 881 | xmlOutputBufferWriteString(buf, ">"); |
| 882 | if (cur->next != NULL) { |
| 883 | if ((cur->next->type != HTML_TEXT_NODE) && |
| 884 | (cur->next->type != HTML_ENTITY_REF_NODE)) |
| 885 | xmlOutputBufferWriteString(buf, "\n"); |
| 886 | } |
| 887 | return; |
| 888 | } |
| 889 | if ((cur->content == NULL) && (cur->children == NULL)) { |
| 890 | if ((info != NULL) && (info->saveEndTag != 0) && |
| 891 | (strcmp(info->name, "html")) && (strcmp(info->name, "body"))) { |
| 892 | xmlOutputBufferWriteString(buf, ">"); |
| 893 | } else { |
| 894 | xmlOutputBufferWriteString(buf, "></"); |
| 895 | xmlOutputBufferWriteString(buf, (const char *)cur->name); |
| 896 | xmlOutputBufferWriteString(buf, ">"); |
| 897 | } |
| 898 | if (cur->next != NULL) { |
| 899 | if ((cur->next->type != HTML_TEXT_NODE) && |
| 900 | (cur->next->type != HTML_ENTITY_REF_NODE)) |
| 901 | xmlOutputBufferWriteString(buf, "\n"); |
| 902 | } |
| 903 | return; |
| 904 | } |
| 905 | xmlOutputBufferWriteString(buf, ">"); |
| 906 | if (cur->content != NULL) { |
| 907 | /* |
| 908 | * Uses the OutputBuffer property to automatically convert |
| 909 | * invalids to charrefs |
| 910 | */ |
| 911 | |
| 912 | #ifndef XML_USE_BUFFER_CONTENT |
| 913 | xmlOutputBufferWriteString(buf, (const char *) cur->content); |
| 914 | #else |
| 915 | xmlOutputBufferWriteString(buf, |
| 916 | (const char *) xmlBufferContent(cur->content)); |
| 917 | #endif |
| 918 | } |
| 919 | if (cur->children != NULL) { |
| 920 | if ((cur->children->type != HTML_TEXT_NODE) && |
| 921 | (cur->children->type != HTML_ENTITY_REF_NODE) && |
| 922 | (cur->children != cur->last)) |
| 923 | xmlOutputBufferWriteString(buf, "\n"); |
| 924 | htmlNodeListDumpOutput(buf, doc, cur->children, encoding); |
| 925 | if ((cur->last->type != HTML_TEXT_NODE) && |
| 926 | (cur->last->type != HTML_ENTITY_REF_NODE) && |
| 927 | (cur->children != cur->last)) |
| 928 | xmlOutputBufferWriteString(buf, "\n"); |
| 929 | } |
| 930 | #if 0 |
| 931 | if (!htmlIsAutoClosed(doc, cur)) { |
| 932 | xmlOutputBufferWriteString(buf, "</"); |
| 933 | xmlOutputBufferWriteString(buf, (const char *)cur->name); |
| 934 | xmlOutputBufferWriteString(buf, ">"); |
| 935 | } |
| 936 | #else |
| 937 | xmlOutputBufferWriteString(buf, "</"); |
| 938 | xmlOutputBufferWriteString(buf, (const char *)cur->name); |
| 939 | xmlOutputBufferWriteString(buf, ">"); |
| 940 | #endif |
| 941 | if (cur->next != NULL) { |
| 942 | if ((cur->next->type != HTML_TEXT_NODE) && |
| 943 | (cur->next->type != HTML_ENTITY_REF_NODE)) |
| 944 | xmlOutputBufferWriteString(buf, "\n"); |
| 945 | } |
| 946 | } |
| 947 | |
| 948 | /** |
| 949 | * htmlDocContentDump: |
| 950 | * @buf: the HTML buffer output |
| 951 | * @cur: the document |
| 952 | * @encoding: the encoding string |
| 953 | * |
| 954 | * Dump an HTML document. |
| 955 | */ |
| 956 | void |
| 957 | htmlDocContentDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr cur, const char *encoding) { |
| 958 | int type; |
| 959 | |
| 960 | /* |
| 961 | * force to output the stuff as HTML, especially for entities |
| 962 | */ |
| 963 | type = cur->type; |
| 964 | cur->type = XML_HTML_DOCUMENT_NODE; |
| 965 | if (cur->intSubset != NULL) |
| 966 | htmlDtdDumpOutput(buf, cur, NULL); |
| 967 | else { |
| 968 | /* Default to HTML-4.0 transitionnal @@@@ */ |
| 969 | xmlOutputBufferWriteString(buf, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\">\n"); |
| 970 | |
| 971 | } |
| 972 | if (cur->children != NULL) { |
| 973 | htmlNodeListDumpOutput(buf, cur, cur->children, encoding); |
| 974 | } |
| 975 | xmlOutputBufferWriteString(buf, "\n"); |
| 976 | cur->type = (xmlElementType) type; |
| 977 | } |
| 978 | |
| 979 | |
| 980 | /************************************************************************ |
| 981 | * * |
| 982 | * Saving functions front-ends * |
| 983 | * * |
| 984 | ************************************************************************/ |
| 985 | |
| 986 | /** |
| 987 | * htmlDocDump: |
| 988 | * @f: the FILE* |
| 989 | * @cur: the document |
| 990 | * |
| 991 | * Dump an HTML document to an open FILE. |
| 992 | * |
| 993 | * returns: the number of byte written or -1 in case of failure. |
| 994 | */ |
| 995 | int |
| 996 | htmlDocDump(FILE *f, xmlDocPtr cur) { |
| 997 | xmlOutputBufferPtr buf; |
| 998 | xmlCharEncodingHandlerPtr handler = NULL; |
| 999 | const char *encoding; |
| 1000 | int ret; |
| 1001 | |
| 1002 | if (cur == NULL) { |
| 1003 | #ifdef DEBUG_TREE |
| 1004 | xmlGenericError(xmlGenericErrorContext, |
| 1005 | "htmlDocDump : document == NULL\n"); |
| 1006 | #endif |
| 1007 | return(-1); |
| 1008 | } |
| 1009 | |
| 1010 | encoding = (const char *) htmlGetMetaEncoding(cur); |
| 1011 | |
| 1012 | if (encoding != NULL) { |
| 1013 | xmlCharEncoding enc; |
| 1014 | |
| 1015 | enc = xmlParseCharEncoding(encoding); |
| 1016 | if (enc != cur->charset) { |
| 1017 | if (cur->charset != XML_CHAR_ENCODING_UTF8) { |
| 1018 | /* |
| 1019 | * Not supported yet |
| 1020 | */ |
| 1021 | return(-1); |
| 1022 | } |
| 1023 | |
| 1024 | handler = xmlFindCharEncodingHandler(encoding); |
| 1025 | if (handler == NULL) |
| 1026 | return(-1); |
| 1027 | } |
| 1028 | } |
| 1029 | |
| 1030 | /* |
| 1031 | * Fallback to HTML or ASCII when the encoding is unspecified |
| 1032 | */ |
| 1033 | if (handler == NULL) |
| 1034 | handler = xmlFindCharEncodingHandler("HTML"); |
| 1035 | if (handler == NULL) |
| 1036 | handler = xmlFindCharEncodingHandler("ascii"); |
| 1037 | |
| 1038 | buf = xmlOutputBufferCreateFile(f, handler); |
| 1039 | if (buf == NULL) return(-1); |
| 1040 | htmlDocContentDumpOutput(buf, cur, NULL); |
| 1041 | |
| 1042 | ret = xmlOutputBufferClose(buf); |
| 1043 | return(ret); |
| 1044 | } |
| 1045 | |
| 1046 | /** |
| 1047 | * htmlSaveFile: |
| 1048 | * @filename: the filename (or URL) |
| 1049 | * @cur: the document |
| 1050 | * |
| 1051 | * Dump an HTML document to a file. If @filename is "-" the stdout file is |
| 1052 | * used. |
| 1053 | * returns: the number of byte written or -1 in case of failure. |
| 1054 | */ |
| 1055 | int |
| 1056 | htmlSaveFile(const char *filename, xmlDocPtr cur) { |
| 1057 | xmlOutputBufferPtr buf; |
| 1058 | xmlCharEncodingHandlerPtr handler = NULL; |
| 1059 | const char *encoding; |
| 1060 | int ret; |
| 1061 | |
| 1062 | encoding = (const char *) htmlGetMetaEncoding(cur); |
| 1063 | |
| 1064 | if (encoding != NULL) { |
| 1065 | xmlCharEncoding enc; |
| 1066 | |
| 1067 | enc = xmlParseCharEncoding(encoding); |
| 1068 | if (enc != cur->charset) { |
| 1069 | if (cur->charset != XML_CHAR_ENCODING_UTF8) { |
| 1070 | /* |
| 1071 | * Not supported yet |
| 1072 | */ |
| 1073 | return(-1); |
| 1074 | } |
| 1075 | |
| 1076 | handler = xmlFindCharEncodingHandler(encoding); |
| 1077 | if (handler == NULL) |
| 1078 | return(-1); |
| 1079 | } |
| 1080 | } |
| 1081 | |
| 1082 | /* |
| 1083 | * Fallback to HTML or ASCII when the encoding is unspecified |
| 1084 | */ |
| 1085 | if (handler == NULL) |
| 1086 | handler = xmlFindCharEncodingHandler("HTML"); |
| 1087 | if (handler == NULL) |
| 1088 | handler = xmlFindCharEncodingHandler("ascii"); |
| 1089 | |
| 1090 | /* |
| 1091 | * save the content to a temp buffer. |
| 1092 | */ |
| 1093 | buf = xmlOutputBufferCreateFilename(filename, handler, cur->compression); |
| 1094 | if (buf == NULL) return(0); |
| 1095 | |
| 1096 | htmlDocContentDumpOutput(buf, cur, NULL); |
| 1097 | |
| 1098 | ret = xmlOutputBufferClose(buf); |
| 1099 | return(ret); |
| 1100 | } |
| 1101 | |
| 1102 | /** |
| 1103 | * htmlSaveFileEnc: |
| 1104 | * @filename: the filename |
| 1105 | * @cur: the document |
| 1106 | * |
| 1107 | * Dump an HTML document to a file using a given encoding. |
| 1108 | * |
| 1109 | * returns: the number of byte written or -1 in case of failure. |
| 1110 | */ |
| 1111 | int |
| 1112 | htmlSaveFileEnc(const char *filename, xmlDocPtr cur, const char *encoding) { |
| 1113 | xmlOutputBufferPtr buf; |
| 1114 | xmlCharEncodingHandlerPtr handler = NULL; |
| 1115 | int ret; |
| 1116 | |
| 1117 | if (encoding != NULL) { |
| 1118 | xmlCharEncoding enc; |
| 1119 | |
| 1120 | enc = xmlParseCharEncoding(encoding); |
| 1121 | if (enc != cur->charset) { |
| 1122 | if (cur->charset != XML_CHAR_ENCODING_UTF8) { |
| 1123 | /* |
| 1124 | * Not supported yet |
| 1125 | */ |
| 1126 | return(-1); |
| 1127 | } |
| 1128 | |
| 1129 | handler = xmlFindCharEncodingHandler(encoding); |
| 1130 | if (handler == NULL) |
| 1131 | return(-1); |
| 1132 | htmlSetMetaEncoding(cur, (const xmlChar *) encoding); |
| 1133 | } |
| 1134 | } |
| 1135 | |
| 1136 | /* |
| 1137 | * Fallback to HTML or ASCII when the encoding is unspecified |
| 1138 | */ |
| 1139 | if (handler == NULL) |
| 1140 | handler = xmlFindCharEncodingHandler("HTML"); |
| 1141 | if (handler == NULL) |
| 1142 | handler = xmlFindCharEncodingHandler("ascii"); |
| 1143 | |
| 1144 | /* |
| 1145 | * save the content to a temp buffer. |
| 1146 | */ |
| 1147 | buf = xmlOutputBufferCreateFilename(filename, handler, 0); |
| 1148 | if (buf == NULL) return(0); |
| 1149 | |
| 1150 | htmlDocContentDumpOutput(buf, cur, encoding); |
| 1151 | |
| 1152 | ret = xmlOutputBufferClose(buf); |
| 1153 | return(ret); |
| 1154 | } |
| 1155 | #endif /* LIBXML_HTML_ENABLED */ |