Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1 | /* |
| 2 | * xmlreader.c: implements the xmlTextReader streaming node API |
| 3 | * |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 4 | * NOTE: |
| 5 | * XmlTextReader.Normalization Property won't be supported, since |
| 6 | * it makes the parser non compliant to the XML recommendation |
| 7 | * |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 8 | * See Copyright for the status of this software. |
| 9 | * |
| 10 | * daniel@veillard.com |
| 11 | */ |
| 12 | |
| 13 | #define IN_LIBXML |
| 14 | #include "libxml.h" |
| 15 | |
| 16 | #include <string.h> /* for memset() only ! */ |
| 17 | |
| 18 | #ifdef HAVE_CTYPE_H |
| 19 | #include <ctype.h> |
| 20 | #endif |
| 21 | #ifdef HAVE_STDLIB_H |
| 22 | #include <stdlib.h> |
| 23 | #endif |
| 24 | |
| 25 | #include <libxml/xmlmemory.h> |
| 26 | #include <libxml/xmlIO.h> |
| 27 | #include <libxml/xmlreader.h> |
| 28 | |
| 29 | /* #define DEBUG_CALLBACKS */ |
| 30 | /* #define DEBUG_READER */ |
| 31 | |
| 32 | /** |
| 33 | * TODO: |
| 34 | * |
| 35 | * macro to flag unimplemented blocks |
| 36 | */ |
| 37 | #define TODO \ |
| 38 | xmlGenericError(xmlGenericErrorContext, \ |
| 39 | "Unimplemented block at %s:%d\n", \ |
| 40 | __FILE__, __LINE__); |
| 41 | |
| 42 | #ifdef DEBUG_READER |
| 43 | #define DUMP_READER xmlTextReaderDebug(reader); |
| 44 | #else |
| 45 | #define DUMP_READER |
| 46 | #endif |
| 47 | |
| 48 | /************************************************************************ |
| 49 | * * |
| 50 | * The parser: maps the Text Reader API on top of the existing * |
| 51 | * parsing routines building a tree * |
| 52 | * * |
| 53 | ************************************************************************/ |
| 54 | |
| 55 | #define XML_TEXTREADER_INPUT 1 |
| 56 | #define XML_TEXTREADER_CTXT 2 |
| 57 | |
| 58 | typedef enum { |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 59 | XML_TEXTREADER_MODE_INITIAL = 0, |
| 60 | XML_TEXTREADER_MODE_INTERACTIVE = 1, |
| 61 | XML_TEXTREADER_MODE_ERROR = 2, |
| 62 | XML_TEXTREADER_MODE_EOF =3, |
| 63 | XML_TEXTREADER_MODE_CLOSED = 4, |
| 64 | XML_TEXTREADER_MODE_READING = 5 |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 65 | } xmlTextReaderMode; |
| 66 | |
| 67 | typedef enum { |
| 68 | XML_TEXTREADER_NONE = -1, |
| 69 | XML_TEXTREADER_START= 0, |
| 70 | XML_TEXTREADER_ELEMENT= 1, |
| 71 | XML_TEXTREADER_END= 2, |
| 72 | XML_TEXTREADER_EMPTY= 3, |
| 73 | XML_TEXTREADER_BACKTRACK= 4 |
| 74 | } xmlTextReaderState; |
| 75 | |
| 76 | struct _xmlTextReader { |
| 77 | int mode; /* the parsing mode */ |
| 78 | int allocs; /* what structure were deallocated */ |
| 79 | xmlTextReaderState state; |
| 80 | xmlParserCtxtPtr ctxt; /* the parser context */ |
| 81 | xmlSAXHandlerPtr sax; /* the parser SAX callbacks */ |
| 82 | xmlParserInputBufferPtr input; /* the input */ |
| 83 | startElementSAXFunc startElement;/* initial SAX callbacks */ |
| 84 | endElementSAXFunc endElement; /* idem */ |
| 85 | unsigned int base; /* base of the segment in the input */ |
| 86 | unsigned int cur; /* current position in the input */ |
| 87 | xmlNodePtr node; /* current node */ |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 88 | xmlNodePtr curnode;/* current attribute node */ |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 89 | int depth; /* depth of the current node */ |
| 90 | }; |
| 91 | |
| 92 | #ifdef DEBUG_READER |
| 93 | static void |
| 94 | xmlTextReaderDebug(xmlTextReaderPtr reader) { |
| 95 | if ((reader == NULL) || (reader->ctxt == NULL)) { |
| 96 | fprintf(stderr, "xmlTextReader NULL\n"); |
| 97 | return; |
| 98 | } |
| 99 | fprintf(stderr, "xmlTextReader: state %d depth %d ", |
| 100 | reader->state, reader->depth); |
| 101 | if (reader->node == NULL) { |
| 102 | fprintf(stderr, "node = NULL\n"); |
| 103 | } else { |
| 104 | fprintf(stderr, "node %s\n", reader->node->name); |
| 105 | } |
| 106 | fprintf(stderr, " input: base %d, cur %d, depth %d: ", |
| 107 | reader->base, reader->cur, reader->ctxt->nodeNr); |
| 108 | if (reader->input->buffer == NULL) { |
| 109 | fprintf(stderr, "buffer is NULL\n"); |
| 110 | } else { |
| 111 | #ifdef LIBXML_DEBUG_ENABLED |
| 112 | xmlDebugDumpString(stderr, |
| 113 | &reader->input->buffer->content[reader->cur]); |
| 114 | #endif |
| 115 | fprintf(stderr, "\n"); |
| 116 | } |
| 117 | } |
| 118 | #endif |
| 119 | |
| 120 | /** |
| 121 | * xmlTextReaderStartElement: |
| 122 | * @ctx: the user data (XML parser context) |
| 123 | * @fullname: The element name, including namespace prefix |
| 124 | * @atts: An array of name/value attributes pairs, NULL terminated |
| 125 | * |
| 126 | * called when an opening tag has been processed. |
| 127 | */ |
| 128 | static void |
| 129 | xmlTextReaderStartElement(void *ctx, const xmlChar *fullname, |
| 130 | const xmlChar **atts) { |
| 131 | xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; |
| 132 | xmlTextReaderPtr reader = ctxt->_private; |
| 133 | |
| 134 | #ifdef DEBUG_CALLBACKS |
| 135 | printf("xmlTextReaderStartElement(%s)\n", fullname); |
| 136 | #endif |
| 137 | if ((reader != NULL) && (reader->startElement != NULL)) |
| 138 | reader->startElement(ctx, fullname, atts); |
| 139 | reader->state = XML_TEXTREADER_ELEMENT; |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * xmlTextReaderEndElement: |
| 144 | * @ctx: the user data (XML parser context) |
| 145 | * @fullname: The element name, including namespace prefix |
| 146 | * |
| 147 | * called when an ending tag has been processed. |
| 148 | */ |
| 149 | static void |
| 150 | xmlTextReaderEndElement(void *ctx, const xmlChar *fullname) { |
| 151 | xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; |
| 152 | xmlTextReaderPtr reader = ctxt->_private; |
| 153 | |
| 154 | #ifdef DEBUG_CALLBACKS |
| 155 | printf("xmlTextReaderEndElement(%s)\n", fullname); |
| 156 | #endif |
| 157 | if ((reader != NULL) && (reader->endElement != NULL)) |
| 158 | reader->endElement(ctx, fullname); |
| 159 | if (reader->state == XML_TEXTREADER_ELEMENT) |
| 160 | reader->state = XML_TEXTREADER_EMPTY; |
| 161 | else |
| 162 | reader->state = XML_TEXTREADER_END; |
| 163 | } |
| 164 | |
| 165 | /** |
| 166 | * xmlTextReaderPushData: |
| 167 | * @reader: the xmlTextReaderPtr used |
| 168 | * |
| 169 | * Push data down the progressive parser until a significant callback |
| 170 | * got raised. |
| 171 | * |
| 172 | * Returns -1 in case of failure, 0 otherwise |
| 173 | */ |
| 174 | static int |
| 175 | xmlTextReaderPushData(xmlTextReaderPtr reader) { |
| 176 | unsigned int cur = reader->cur; |
| 177 | xmlBufferPtr inbuf; |
| 178 | int val; |
| 179 | |
| 180 | if ((reader->input == NULL) || (reader->input->buffer == NULL)) |
| 181 | return(-1); |
| 182 | |
| 183 | reader->state = XML_TEXTREADER_NONE; |
| 184 | inbuf = reader->input->buffer; |
| 185 | while (reader->state == XML_TEXTREADER_NONE) { |
| 186 | if (cur >= inbuf->use) { |
| 187 | /* |
| 188 | * Refill the buffer unless we are at the end of the stream |
| 189 | */ |
| 190 | if (reader->mode != XML_TEXTREADER_MODE_EOF) { |
| 191 | val = xmlParserInputBufferRead(reader->input, 4096); |
| 192 | if (val <= 0) { |
| 193 | reader->mode = XML_TEXTREADER_MODE_EOF; |
| 194 | return(val); |
| 195 | } |
| 196 | } else |
| 197 | break; |
| 198 | } |
| 199 | if ((inbuf->content[cur] == '>') || (inbuf->content[cur] == '&')) { |
| 200 | cur = cur + 1; |
| 201 | val = xmlParseChunk(reader->ctxt, |
| 202 | (const char *) &inbuf->content[reader->cur], |
| 203 | cur - reader->cur, 0); |
| 204 | if (val != 0) |
| 205 | return(-1); |
| 206 | reader->cur = cur; |
| 207 | break; |
| 208 | } else { |
| 209 | cur = cur + 1; |
| 210 | |
| 211 | /* |
| 212 | * One may have to force a flush at some point when parsing really |
| 213 | * large CDATA sections |
| 214 | */ |
| 215 | if ((cur - reader->cur > 4096) && (reader->base == 0) && |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 216 | (reader->mode == XML_TEXTREADER_MODE_INTERACTIVE)) { |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 217 | cur = cur + 1; |
| 218 | val = xmlParseChunk(reader->ctxt, |
| 219 | (const char *) &inbuf->content[reader->cur], |
| 220 | cur - reader->cur, 0); |
| 221 | if (val != 0) |
| 222 | return(-1); |
| 223 | reader->cur = cur; |
| 224 | } |
| 225 | } |
| 226 | } |
| 227 | /* |
| 228 | * Discard the consumed input when needed and possible |
| 229 | */ |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 230 | if (reader->mode == XML_TEXTREADER_MODE_INTERACTIVE) { |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 231 | if ((reader->cur >= 4096) && (reader->base == 0)) { |
| 232 | val = xmlBufferShrink(inbuf, cur); |
| 233 | if (val >= 0) { |
| 234 | reader->cur -= val; |
| 235 | } |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | /* |
| 240 | * At the end of the stream signal that the work is done to the Push |
| 241 | * parser. |
| 242 | */ |
| 243 | if ((reader->mode == XML_TEXTREADER_MODE_EOF) && (cur >= inbuf->use)) { |
| 244 | val = xmlParseChunk(reader->ctxt, |
| 245 | (const char *) &inbuf->content[reader->cur], 0, 1); |
| 246 | } |
| 247 | return(0); |
| 248 | } |
| 249 | |
| 250 | /** |
| 251 | * xmlTextReaderRead: |
| 252 | * @reader: the xmlTextReaderPtr used |
| 253 | * |
| 254 | * Moves the position of the current instance to the next node in |
| 255 | * the stream, exposing its properties. |
| 256 | * |
| 257 | * Returns 1 if the node was read successfully, 0 if there is no more |
| 258 | * nodes to read, or -1 in case of error |
| 259 | */ |
| 260 | int |
| 261 | xmlTextReaderRead(xmlTextReaderPtr reader) { |
| 262 | int val, olddepth; |
| 263 | xmlTextReaderState oldstate; |
| 264 | xmlNodePtr oldnode; |
| 265 | |
| 266 | if ((reader == NULL) || (reader->ctxt == NULL)) |
| 267 | return(-1); |
| 268 | if (reader->ctxt->wellFormed != 1) |
| 269 | return(-1); |
| 270 | |
| 271 | #ifdef DEBUG_READER |
| 272 | fprintf(stderr, "\nREAD "); |
| 273 | DUMP_READER |
| 274 | #endif |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 275 | if (reader->mode == XML_TEXTREADER_MODE_INITIAL) { |
| 276 | reader->mode = XML_TEXTREADER_MODE_INTERACTIVE; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 277 | /* |
| 278 | * Initial state |
| 279 | */ |
| 280 | do { |
| 281 | val = xmlTextReaderPushData(reader); |
| 282 | if (val < 0) |
| 283 | return(-1); |
| 284 | } while ((reader->ctxt->node == NULL) && |
| 285 | (reader->mode != XML_TEXTREADER_MODE_EOF)); |
| 286 | if (reader->ctxt->node == NULL) { |
| 287 | if (reader->ctxt->myDoc != NULL) |
| 288 | reader->node = reader->ctxt->myDoc->children; |
| 289 | if (reader->node == NULL) |
| 290 | return(-1); |
| 291 | } else { |
| 292 | reader->node = reader->ctxt->node; |
| 293 | } |
| 294 | reader->depth = 1; |
| 295 | return(1); |
| 296 | } |
| 297 | oldstate = reader->state; |
| 298 | olddepth = reader->ctxt->nodeNr; |
| 299 | oldnode = reader->node; |
| 300 | /* |
| 301 | * If we are not backtracking on ancestors or examined nodes, |
| 302 | * that the parser didn't finished or that we arent at the end |
| 303 | * of stream, continue processing. |
| 304 | */ |
| 305 | if (oldstate != XML_TEXTREADER_BACKTRACK) { |
| 306 | while (((reader->node->children == NULL) || |
| 307 | (reader->node->type == XML_ENTITY_REF_NODE) || |
| 308 | (reader->node->type == XML_DTD_NODE)) && |
| 309 | (reader->node->next == NULL) && |
| 310 | (reader->ctxt->nodeNr == olddepth) && |
| 311 | (reader->ctxt->instate != XML_PARSER_EOF)) { |
| 312 | val = xmlTextReaderPushData(reader); |
| 313 | if (val < 0) |
| 314 | return(-1); |
| 315 | if (reader->node == NULL) |
| 316 | return(0); |
| 317 | } |
| 318 | if ((reader->node->children != NULL) && |
| 319 | (reader->node->type != XML_ENTITY_REF_NODE) && |
| 320 | (reader->node->type != XML_DTD_NODE)) { |
| 321 | reader->node = reader->node->children; |
| 322 | reader->depth++; |
| 323 | if ((reader->state != XML_TEXTREADER_ELEMENT) && |
| 324 | (reader->state != XML_TEXTREADER_EMPTY)) |
| 325 | reader->state = XML_TEXTREADER_ELEMENT; |
| 326 | DUMP_READER |
| 327 | return(1); |
| 328 | } |
| 329 | } |
| 330 | if (reader->node->next != NULL) { |
| 331 | if ((oldstate == XML_TEXTREADER_ELEMENT) && |
| 332 | (reader->node->type == XML_ELEMENT_NODE)) { |
| 333 | reader->state = XML_TEXTREADER_END; |
| 334 | DUMP_READER |
| 335 | return(1); |
| 336 | } |
| 337 | reader->node = reader->node->next; |
| 338 | reader->state = XML_TEXTREADER_ELEMENT; |
| 339 | DUMP_READER |
| 340 | /* |
| 341 | * Cleanup of the old node |
| 342 | */ |
| 343 | if (oldnode->type != XML_DTD_NODE) { |
| 344 | xmlUnlinkNode(oldnode); |
| 345 | xmlFreeNode(oldnode); |
| 346 | } |
| 347 | |
| 348 | return(1); |
| 349 | } |
| 350 | reader->node = reader->node->parent; |
| 351 | if ((reader->node == NULL) || |
| 352 | (reader->node->type == XML_DOCUMENT_NODE) || |
| 353 | #ifdef LIBXML_DOCB_ENABLED |
| 354 | (reader->node->type == XML_DOCB_DOCUMENT_NODE) || |
| 355 | #endif |
| 356 | (reader->node->type == XML_HTML_DOCUMENT_NODE)) { |
| 357 | reader->node = NULL; |
| 358 | reader->depth = 0; |
| 359 | |
| 360 | /* |
| 361 | * Cleanup of the old node |
| 362 | */ |
| 363 | if (oldnode->type != XML_DTD_NODE) { |
| 364 | xmlUnlinkNode(oldnode); |
| 365 | xmlFreeNode(oldnode); |
| 366 | } |
| 367 | |
| 368 | return(0); |
| 369 | } |
| 370 | reader->depth--; |
| 371 | reader->state = XML_TEXTREADER_BACKTRACK; |
| 372 | DUMP_READER |
| 373 | return(1); |
| 374 | } |
| 375 | |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 376 | /** |
| 377 | * xmlTextReaderReadState: |
| 378 | * @reader: the xmlTextReaderPtr used |
| 379 | * |
| 380 | * Gets the read state of the reader. |
| 381 | * |
| 382 | * Returns the state value, or -1 in case of error |
| 383 | */ |
| 384 | int |
| 385 | xmlTextReaderReadState(xmlTextReaderPtr reader) { |
| 386 | if (reader == NULL) |
| 387 | return(-1); |
| 388 | return(reader->mode); |
| 389 | } |
| 390 | |
| 391 | /** |
| 392 | * xmlTextReaderReadInnerXml: |
| 393 | * @reader: the xmlTextReaderPtr used |
| 394 | * |
| 395 | * Reads the contents of the current node, including child nodes and markup. |
| 396 | * |
| 397 | * Returns a string containing the XML content, or NULL if the current node |
| 398 | * is neither an element nor attribute, or has no child nodes. The |
| 399 | * string must be deallocated by the caller. |
| 400 | */ |
| 401 | xmlChar * |
| 402 | xmlTextReaderReadInnerXml(xmlTextReaderPtr reader) { |
| 403 | TODO |
| 404 | return(NULL); |
| 405 | } |
| 406 | |
| 407 | /** |
| 408 | * xmlTextReaderReadOuterXml: |
| 409 | * @reader: the xmlTextReaderPtr used |
| 410 | * |
| 411 | * Reads the contents of the current node, including child nodes and markup. |
| 412 | * |
| 413 | * Returns a string containing the XML content, or NULL if the current node |
| 414 | * is neither an element nor attribute, or has no child nodes. The |
| 415 | * string must be deallocated by the caller. |
| 416 | */ |
| 417 | xmlChar * |
| 418 | xmlTextReaderReadOuterXml(xmlTextReaderPtr reader) { |
| 419 | TODO |
| 420 | return(NULL); |
| 421 | } |
| 422 | |
| 423 | /** |
| 424 | * xmlTextReaderReadString: |
| 425 | * @reader: the xmlTextReaderPtr used |
| 426 | * |
| 427 | * Reads the contents of an element or a text node as a string. |
| 428 | * |
| 429 | * Returns a string containing the contents of the Element or Text node, |
| 430 | * or NULL if the reader is positioned on any other type of node. |
| 431 | * The string must be deallocated by the caller. |
| 432 | */ |
| 433 | xmlChar * |
| 434 | xmlTextReaderReadString(xmlTextReaderPtr reader) { |
| 435 | TODO |
| 436 | return(NULL); |
| 437 | } |
| 438 | |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 439 | /************************************************************************ |
| 440 | * * |
| 441 | * Constructor and destructors * |
| 442 | * * |
| 443 | ************************************************************************/ |
| 444 | /** |
| 445 | * xmlNewTextReader: |
| 446 | * @input: the xmlParserInputBufferPtr used to read data |
| 447 | * |
| 448 | * Create an xmlTextReader structure fed with @input |
| 449 | * |
| 450 | * Returns the new xmlTextReaderPtr or NULL in case of error |
| 451 | */ |
| 452 | xmlTextReaderPtr |
| 453 | xmlNewTextReader(xmlParserInputBufferPtr input) { |
| 454 | xmlTextReaderPtr ret; |
| 455 | int val; |
| 456 | |
| 457 | if (input == NULL) |
| 458 | return(NULL); |
| 459 | ret = xmlMalloc(sizeof(xmlTextReader)); |
| 460 | if (ret == NULL) { |
| 461 | xmlGenericError(xmlGenericErrorContext, |
| 462 | "xmlNewTextReader : malloc failed\n"); |
| 463 | return(NULL); |
| 464 | } |
| 465 | memset(ret, 0, sizeof(xmlTextReader)); |
| 466 | ret->input = input; |
| 467 | ret->sax = (xmlSAXHandler *) xmlMalloc(sizeof(xmlSAXHandler)); |
| 468 | if (ret->sax == NULL) { |
| 469 | xmlFree(ret); |
| 470 | xmlGenericError(xmlGenericErrorContext, |
| 471 | "xmlNewTextReader : malloc failed\n"); |
| 472 | return(NULL); |
| 473 | } |
| 474 | memcpy(ret->sax, &xmlDefaultSAXHandler, sizeof(xmlSAXHandler)); |
| 475 | ret->startElement = ret->sax->startElement; |
| 476 | ret->sax->startElement = xmlTextReaderStartElement; |
| 477 | ret->endElement = ret->sax->endElement; |
| 478 | ret->sax->endElement = xmlTextReaderEndElement; |
| 479 | |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 480 | ret->mode = XML_TEXTREADER_MODE_INITIAL; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 481 | ret->node = NULL; |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 482 | ret->curnode = NULL; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 483 | val = xmlParserInputBufferRead(input, 4); |
| 484 | if (val >= 4) { |
| 485 | ret->ctxt = xmlCreatePushParserCtxt(ret->sax, NULL, |
| 486 | (const char *) ret->input->buffer->content, 4, NULL); |
| 487 | ret->base = 0; |
| 488 | ret->cur = 4; |
| 489 | } else { |
| 490 | ret->ctxt = xmlCreatePushParserCtxt(ret->sax, NULL, NULL, 0, NULL); |
| 491 | ret->base = 0; |
| 492 | ret->cur = 0; |
| 493 | } |
| 494 | ret->ctxt->_private = ret; |
| 495 | ret->allocs = XML_TEXTREADER_CTXT; |
| 496 | return(ret); |
| 497 | |
| 498 | } |
| 499 | |
| 500 | /** |
| 501 | * xmlNewTextReaderFilename: |
| 502 | * @URI: the URI of the resource to process |
| 503 | * |
| 504 | * Create an xmlTextReader structure fed with the resource at @URI |
| 505 | * |
| 506 | * Returns the new xmlTextReaderPtr or NULL in case of error |
| 507 | */ |
| 508 | xmlTextReaderPtr |
| 509 | xmlNewTextReaderFilename(const char *URI) { |
| 510 | xmlParserInputBufferPtr input; |
| 511 | xmlTextReaderPtr ret; |
| 512 | |
| 513 | input = xmlParserInputBufferCreateFilename(URI, XML_CHAR_ENCODING_NONE); |
| 514 | if (input == NULL) |
| 515 | return(NULL); |
| 516 | ret = xmlNewTextReader(input); |
| 517 | if (ret == NULL) { |
| 518 | xmlFreeParserInputBuffer(input); |
| 519 | return(NULL); |
| 520 | } |
| 521 | ret->allocs |= XML_TEXTREADER_INPUT; |
| 522 | return(ret); |
| 523 | } |
| 524 | |
| 525 | /** |
| 526 | * xmlFreeTextReader: |
| 527 | * @reader: the xmlTextReaderPtr |
| 528 | * |
| 529 | * Deallocate all the resources associated to the reader |
| 530 | */ |
| 531 | void |
| 532 | xmlFreeTextReader(xmlTextReaderPtr reader) { |
| 533 | if (reader == NULL) |
| 534 | return; |
| 535 | if (reader->ctxt != NULL) { |
| 536 | if (reader->ctxt->myDoc != NULL) { |
| 537 | xmlFreeDoc(reader->ctxt->myDoc); |
| 538 | reader->ctxt->myDoc = NULL; |
| 539 | } |
| 540 | if (reader->allocs & XML_TEXTREADER_CTXT) |
| 541 | xmlFreeParserCtxt(reader->ctxt); |
| 542 | } |
| 543 | if (reader->sax != NULL) |
| 544 | xmlFree(reader->sax); |
| 545 | if ((reader->input != NULL) && (reader->allocs & XML_TEXTREADER_INPUT)) |
| 546 | xmlFreeParserInputBuffer(reader->input); |
| 547 | xmlFree(reader); |
| 548 | } |
| 549 | |
| 550 | /************************************************************************ |
| 551 | * * |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 552 | * Methods for XmlTextReader * |
| 553 | * * |
| 554 | ************************************************************************/ |
| 555 | /** |
| 556 | * xmlTextReaderClose: |
| 557 | * @reader: the xmlTextReaderPtr used |
| 558 | * |
| 559 | * This method releases any resources allocated by the current instance |
| 560 | * changes the state to Closed and close any underlying input. |
| 561 | * |
| 562 | * Returns 0 or -1 in case of error |
| 563 | */ |
| 564 | int |
| 565 | xmlTextReaderClose(xmlTextReaderPtr reader) { |
| 566 | if (reader == NULL) |
| 567 | return(-1); |
| 568 | reader->node = NULL; |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 569 | reader->curnode = NULL; |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 570 | reader->mode = XML_TEXTREADER_MODE_CLOSED; |
| 571 | if (reader->ctxt != NULL) { |
| 572 | if (reader->ctxt->myDoc != NULL) { |
| 573 | xmlFreeDoc(reader->ctxt->myDoc); |
| 574 | reader->ctxt->myDoc = NULL; |
| 575 | } |
| 576 | if (reader->allocs & XML_TEXTREADER_CTXT) { |
| 577 | xmlFreeParserCtxt(reader->ctxt); |
| 578 | reader->allocs -= XML_TEXTREADER_CTXT; |
| 579 | } |
| 580 | } |
| 581 | if (reader->sax != NULL) { |
| 582 | xmlFree(reader->sax); |
| 583 | reader->sax = NULL; |
| 584 | } |
| 585 | if ((reader->input != NULL) && (reader->allocs & XML_TEXTREADER_INPUT)) { |
| 586 | xmlFreeParserInputBuffer(reader->input); |
| 587 | reader->allocs -= XML_TEXTREADER_INPUT; |
| 588 | } |
| 589 | return(0); |
| 590 | } |
| 591 | |
| 592 | /** |
| 593 | * xmlTextReaderGetAttributeNo: |
| 594 | * @reader: the xmlTextReaderPtr used |
| 595 | * @no: the zero-based index of the attribute relative to the containing element |
| 596 | * |
| 597 | * Provides the value of the attribute with the specified index relative |
| 598 | * to the containing element. |
| 599 | * |
| 600 | * Returns a string containing the value of the specified attribute, or NULL |
| 601 | * in case of error. The string must be deallocated by the caller. |
| 602 | */ |
| 603 | xmlChar * |
| 604 | xmlTextReaderGetAttributeNo(xmlTextReaderPtr reader, int no) { |
| 605 | xmlChar *ret; |
| 606 | int i; |
| 607 | xmlAttrPtr cur; |
| 608 | xmlNsPtr ns; |
| 609 | |
| 610 | if (reader == NULL) |
| 611 | return(NULL); |
| 612 | if (reader->node == NULL) |
| 613 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 614 | if (reader->curnode != NULL) |
| 615 | return(NULL); |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 616 | /* TODO: handle the xmlDecl */ |
| 617 | if (reader->node->type != XML_ELEMENT_NODE) |
| 618 | return(NULL); |
| 619 | |
| 620 | ns = reader->node->nsDef; |
| 621 | for (i = 0;(i < no) && (ns != NULL);i++) { |
| 622 | ns = ns->next; |
| 623 | } |
| 624 | if (ns != NULL) |
| 625 | return(xmlStrdup(ns->href)); |
| 626 | |
| 627 | cur = reader->node->properties; |
| 628 | if (cur == NULL) |
| 629 | return(NULL); |
| 630 | for (;i < no;i++) { |
| 631 | cur = cur->next; |
| 632 | if (cur == NULL) |
| 633 | return(NULL); |
| 634 | } |
| 635 | /* TODO walk the DTD if present */ |
| 636 | |
| 637 | ret = xmlNodeListGetString(reader->node->doc, cur->children, 1); |
| 638 | if (ret == NULL) return(xmlStrdup((xmlChar *)"")); |
| 639 | return(ret); |
| 640 | } |
| 641 | |
| 642 | /** |
| 643 | * xmlTextReaderGetAttribute: |
| 644 | * @reader: the xmlTextReaderPtr used |
| 645 | * @name: the qualified name of the attribute. |
| 646 | * |
| 647 | * Provides the value of the attribute with the specified qualified name. |
| 648 | * |
| 649 | * Returns a string containing the value of the specified attribute, or NULL |
| 650 | * in case of error. The string must be deallocated by the caller. |
| 651 | */ |
| 652 | xmlChar * |
| 653 | xmlTextReaderGetAttribute(xmlTextReaderPtr reader, const xmlChar *name) { |
| 654 | xmlChar *prefix = NULL; |
| 655 | xmlChar *localname; |
| 656 | xmlNsPtr ns; |
| 657 | xmlChar *ret = NULL; |
| 658 | |
| 659 | if ((reader == NULL) || (name == NULL)) |
| 660 | return(NULL); |
| 661 | if (reader->node == NULL) |
| 662 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 663 | if (reader->curnode != NULL) |
| 664 | return(NULL); |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 665 | |
| 666 | /* TODO: handle the xmlDecl */ |
| 667 | if (reader->node->type != XML_ELEMENT_NODE) |
| 668 | return(NULL); |
| 669 | |
| 670 | localname = xmlSplitQName2(name, &prefix); |
| 671 | if (localname == NULL) |
| 672 | return(xmlGetProp(reader->node, name)); |
| 673 | |
| 674 | ns = xmlSearchNs(reader->node->doc, reader->node, prefix); |
| 675 | if (ns != NULL) |
| 676 | ret = xmlGetNsProp(reader->node, localname, ns->href); |
| 677 | |
| 678 | if (localname != NULL) |
| 679 | xmlFree(localname); |
| 680 | if (prefix != NULL) |
| 681 | xmlFree(prefix); |
| 682 | return(ret); |
| 683 | } |
| 684 | |
| 685 | |
| 686 | /** |
| 687 | * xmlTextReaderGetAttributeNs: |
| 688 | * @reader: the xmlTextReaderPtr used |
| 689 | * @localName: the local name of the attribute. |
| 690 | * @namespaceURI: the namespace URI of the attribute. |
| 691 | * |
| 692 | * Provides the value of the specified attribute |
| 693 | * |
| 694 | * Returns a string containing the value of the specified attribute, or NULL |
| 695 | * in case of error. The string must be deallocated by the caller. |
| 696 | */ |
| 697 | xmlChar * |
| 698 | xmlTextReaderGetAttributeNs(xmlTextReaderPtr reader, const xmlChar *localName, |
| 699 | const xmlChar *namespaceURI) { |
| 700 | if ((reader == NULL) || (localName == NULL)) |
| 701 | return(NULL); |
| 702 | if (reader->node == NULL) |
| 703 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 704 | if (reader->curnode != NULL) |
| 705 | return(NULL); |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 706 | |
| 707 | /* TODO: handle the xmlDecl */ |
| 708 | if (reader->node->type != XML_ELEMENT_NODE) |
| 709 | return(NULL); |
| 710 | |
| 711 | return(xmlGetNsProp(reader->node, localName, namespaceURI)); |
| 712 | } |
| 713 | |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 714 | /** |
| 715 | * xmlTextReaderGetRemainder: |
| 716 | * @reader: the xmlTextReaderPtr used |
| 717 | * |
| 718 | * Method to get the remainder of the buffered XML. this method stops the |
| 719 | * parser, set its state to End Of File and return the input stream with |
| 720 | * what is left that the parser did not use. |
| 721 | * |
| 722 | * Returns the xmlParserInputBufferPtr attached to the XML or NULL |
| 723 | * in case of error. |
| 724 | */ |
| 725 | xmlParserInputBufferPtr |
| 726 | xmlTextReaderGetRemainder(xmlTextReaderPtr reader) { |
| 727 | xmlParserInputBufferPtr ret = NULL; |
| 728 | |
| 729 | if (reader == NULL) |
| 730 | return(NULL); |
| 731 | if (reader->node == NULL) |
| 732 | return(NULL); |
| 733 | |
| 734 | reader->node = NULL; |
| 735 | reader->curnode = NULL; |
| 736 | reader->mode = XML_TEXTREADER_MODE_EOF; |
| 737 | if (reader->ctxt != NULL) { |
| 738 | if (reader->ctxt->myDoc != NULL) { |
| 739 | xmlFreeDoc(reader->ctxt->myDoc); |
| 740 | reader->ctxt->myDoc = NULL; |
| 741 | } |
| 742 | if (reader->allocs & XML_TEXTREADER_CTXT) { |
| 743 | xmlFreeParserCtxt(reader->ctxt); |
| 744 | reader->allocs -= XML_TEXTREADER_CTXT; |
| 745 | } |
| 746 | } |
| 747 | if (reader->sax != NULL) { |
| 748 | xmlFree(reader->sax); |
| 749 | reader->sax = NULL; |
| 750 | } |
| 751 | if (reader->allocs & XML_TEXTREADER_INPUT) { |
| 752 | ret = reader->input; |
| 753 | reader->allocs -= XML_TEXTREADER_INPUT; |
| 754 | } else { |
| 755 | /* |
| 756 | * Hum, one may need to duplicate the data structure because |
| 757 | * without reference counting the input may be freed twice: |
| 758 | * - by the layer which allocated it. |
| 759 | * - by the layer to which would have been returned to. |
| 760 | */ |
| 761 | TODO |
| 762 | return(NULL); |
| 763 | } |
| 764 | return(ret); |
| 765 | } |
| 766 | |
| 767 | /** |
| 768 | * xmlTextReaderLookupNamespace: |
| 769 | * @reader: the xmlTextReaderPtr used |
| 770 | * @prefix: the prefix whose namespace URI is to be resolved. To return |
| 771 | * the default namespace, specify NULL |
| 772 | * |
| 773 | * Resolves a namespace prefix in the scope of the current element. |
| 774 | * |
| 775 | * Returns a string containing the namespace URI to which the prefix maps |
| 776 | * or NULL in case of error. The string must be deallocated by the caller. |
| 777 | */ |
| 778 | xmlChar * |
| 779 | xmlTextReaderLookupNamespace(xmlTextReaderPtr reader, const xmlChar *prefix) { |
| 780 | xmlNsPtr ns; |
| 781 | |
| 782 | if (reader == NULL) |
| 783 | return(NULL); |
| 784 | if (reader->node == NULL) |
| 785 | return(NULL); |
| 786 | |
| 787 | ns = xmlSearchNs(reader->node->doc, reader->node, prefix); |
| 788 | if (ns == NULL) |
| 789 | return(NULL); |
| 790 | return(xmlStrdup(ns->href)); |
| 791 | } |
| 792 | |
| 793 | /** |
| 794 | * xmlTextReaderMoveToAttributeNo: |
| 795 | * @reader: the xmlTextReaderPtr used |
| 796 | * @no: the zero-based index of the attribute relative to the containing |
| 797 | * element. |
| 798 | * |
| 799 | * Moves the position of the current instance to the attribute with |
| 800 | * the specified index relative to the containing element. |
| 801 | * |
| 802 | * Returns 1 in case of success, -1 in case of error, 0 if not found |
| 803 | */ |
| 804 | int |
| 805 | xmlTextReaderMoveToAttributeNo(xmlTextReaderPtr reader, int no) { |
| 806 | int i; |
| 807 | xmlAttrPtr cur; |
| 808 | xmlNsPtr ns; |
| 809 | |
| 810 | if (reader == NULL) |
| 811 | return(-1); |
| 812 | if (reader->node == NULL) |
| 813 | return(-1); |
| 814 | /* TODO: handle the xmlDecl */ |
| 815 | if (reader->node->type != XML_ELEMENT_NODE) |
| 816 | return(-1); |
| 817 | |
| 818 | reader->curnode = NULL; |
| 819 | |
| 820 | ns = reader->node->nsDef; |
| 821 | for (i = 0;(i < no) && (ns != NULL);i++) { |
| 822 | ns = ns->next; |
| 823 | } |
| 824 | if (ns != NULL) { |
| 825 | reader->curnode = (xmlNodePtr) ns; |
| 826 | return(1); |
| 827 | } |
| 828 | |
| 829 | cur = reader->node->properties; |
| 830 | if (cur == NULL) |
| 831 | return(0); |
| 832 | for (;i < no;i++) { |
| 833 | cur = cur->next; |
| 834 | if (cur == NULL) |
| 835 | return(0); |
| 836 | } |
| 837 | /* TODO walk the DTD if present */ |
| 838 | |
| 839 | reader->curnode = (xmlNodePtr) cur; |
| 840 | return(1); |
| 841 | } |
| 842 | |
| 843 | /** |
| 844 | * xmlTextReaderMoveToAttribute: |
| 845 | * @reader: the xmlTextReaderPtr used |
| 846 | * @name: the qualified name of the attribute. |
| 847 | * |
| 848 | * Moves the position of the current instance to the attribute with |
| 849 | * the specified qualified name. |
| 850 | * |
| 851 | * Returns 1 in case of success, -1 in case of error, 0 if not found |
| 852 | */ |
| 853 | int |
| 854 | xmlTextReaderMoveToAttribute(xmlTextReaderPtr reader, const xmlChar *name) { |
| 855 | xmlChar *prefix = NULL; |
| 856 | xmlChar *localname; |
| 857 | xmlNsPtr ns; |
| 858 | xmlAttrPtr prop; |
| 859 | |
| 860 | if ((reader == NULL) || (name == NULL)) |
| 861 | return(-1); |
| 862 | if (reader->node == NULL) |
| 863 | return(-1); |
| 864 | |
| 865 | /* TODO: handle the xmlDecl */ |
| 866 | if (reader->node->type != XML_ELEMENT_NODE) |
| 867 | return(0); |
| 868 | |
| 869 | localname = xmlSplitQName2(name, &prefix); |
| 870 | if (localname == NULL) { |
| 871 | /* |
| 872 | * Namespace default decl |
| 873 | */ |
| 874 | if (xmlStrEqual(name, BAD_CAST "xmlns")) { |
| 875 | ns = reader->node->nsDef; |
| 876 | while (ns != NULL) { |
| 877 | if (ns->prefix == NULL) { |
| 878 | reader->curnode = (xmlNodePtr) ns; |
| 879 | return(1); |
| 880 | } |
| 881 | ns = ns->next; |
| 882 | } |
| 883 | return(0); |
| 884 | } |
| 885 | |
| 886 | prop = reader->node->properties; |
| 887 | while (prop != NULL) { |
| 888 | /* |
| 889 | * One need to have |
| 890 | * - same attribute names |
| 891 | * - and the attribute carrying that namespace |
| 892 | */ |
| 893 | if ((xmlStrEqual(prop->name, name)) && |
| 894 | ((prop->ns == NULL) || (prop->ns->prefix == NULL))) { |
| 895 | reader->curnode = (xmlNodePtr) prop; |
| 896 | return(1); |
| 897 | } |
| 898 | prop = prop->next; |
| 899 | } |
| 900 | return(0); |
| 901 | } |
| 902 | |
| 903 | /* |
| 904 | * Namespace default decl |
| 905 | */ |
| 906 | if (xmlStrEqual(prefix, BAD_CAST "xmlns")) { |
| 907 | ns = reader->node->nsDef; |
| 908 | while (ns != NULL) { |
| 909 | if ((ns->prefix != NULL) && (xmlStrEqual(ns->prefix, localname))) { |
| 910 | reader->curnode = (xmlNodePtr) ns; |
| 911 | goto found; |
| 912 | } |
| 913 | ns = ns->next; |
| 914 | } |
| 915 | goto not_found; |
| 916 | } |
| 917 | prop = reader->node->properties; |
| 918 | while (prop != NULL) { |
| 919 | /* |
| 920 | * One need to have |
| 921 | * - same attribute names |
| 922 | * - and the attribute carrying that namespace |
| 923 | */ |
| 924 | if ((xmlStrEqual(prop->name, localname)) && |
| 925 | (prop->ns != NULL) && (xmlStrEqual(prop->ns->prefix, prefix))) { |
| 926 | reader->curnode = (xmlNodePtr) prop; |
| 927 | goto found; |
| 928 | } |
| 929 | prop = prop->next; |
| 930 | } |
| 931 | not_found: |
| 932 | if (localname != NULL) |
| 933 | xmlFree(localname); |
| 934 | if (prefix != NULL) |
| 935 | xmlFree(prefix); |
| 936 | return(0); |
| 937 | |
| 938 | found: |
| 939 | if (localname != NULL) |
| 940 | xmlFree(localname); |
| 941 | if (prefix != NULL) |
| 942 | xmlFree(prefix); |
| 943 | return(1); |
| 944 | } |
| 945 | |
| 946 | /** |
| 947 | * xmlTextReaderMoveToAttributeNs: |
| 948 | * @reader: the xmlTextReaderPtr used |
| 949 | * @localName: the local name of the attribute. |
| 950 | * @namespaceURI: the namespace URI of the attribute. |
| 951 | * |
| 952 | * Moves the position of the current instance to the attribute with the |
| 953 | * specified local name and namespace URI. |
| 954 | * |
| 955 | * Returns 1 in case of success, -1 in case of error, 0 if not found |
| 956 | */ |
| 957 | int |
| 958 | xmlTextReaderMoveToAttributeNs(xmlTextReaderPtr reader, |
| 959 | const xmlChar *localName, const xmlChar *namespaceURI) { |
| 960 | xmlAttrPtr prop; |
| 961 | xmlNodePtr node; |
| 962 | |
| 963 | if ((reader == NULL) || (localName == NULL) || (namespaceURI == NULL)) |
| 964 | return(-1); |
| 965 | if (reader->node == NULL) |
| 966 | return(-1); |
| 967 | if (reader->node->type != XML_ELEMENT_NODE) |
| 968 | return(0); |
| 969 | node = reader->node; |
| 970 | |
| 971 | /* |
| 972 | * A priori reading http://www.w3.org/TR/REC-xml-names/ there is no |
| 973 | * namespace name associated to "xmlns" |
| 974 | */ |
| 975 | prop = node->properties; |
| 976 | while (prop != NULL) { |
| 977 | /* |
| 978 | * One need to have |
| 979 | * - same attribute names |
| 980 | * - and the attribute carrying that namespace |
| 981 | */ |
| 982 | if (xmlStrEqual(prop->name, localName) && |
| 983 | ((prop->ns != NULL) && |
| 984 | (xmlStrEqual(prop->ns->href, namespaceURI)))) { |
| 985 | reader->curnode = (xmlNodePtr) prop; |
| 986 | return(1); |
| 987 | } |
| 988 | prop = prop->next; |
| 989 | } |
| 990 | return(0); |
| 991 | } |
| 992 | |
| 993 | /** |
| 994 | * xmlTextReaderMoveToFirstAttribute: |
| 995 | * @reader: the xmlTextReaderPtr used |
| 996 | * |
| 997 | * Moves the position of the current instance to the first attribute |
| 998 | * associated with the current node. |
| 999 | * |
| 1000 | * Returns 1 in case of success, -1 in case of error, 0 if not found |
| 1001 | */ |
| 1002 | int |
| 1003 | xmlTextReaderMoveToFirstAttribute(xmlTextReaderPtr reader) { |
| 1004 | if (reader == NULL) |
| 1005 | return(-1); |
| 1006 | if (reader->node == NULL) |
| 1007 | return(-1); |
| 1008 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1009 | return(0); |
| 1010 | |
| 1011 | if (reader->node->nsDef != NULL) { |
| 1012 | reader->curnode = (xmlNodePtr) reader->node->nsDef; |
| 1013 | return(1); |
| 1014 | } |
| 1015 | if (reader->node->properties != NULL) { |
| 1016 | reader->curnode = (xmlNodePtr) reader->node->properties; |
| 1017 | return(1); |
| 1018 | } |
| 1019 | return(0); |
| 1020 | } |
| 1021 | |
| 1022 | /** |
| 1023 | * xmlTextReaderMoveToNextAttribute: |
| 1024 | * @reader: the xmlTextReaderPtr used |
| 1025 | * |
| 1026 | * Moves the position of the current instance to the next attribute |
| 1027 | * associated with the current node. |
| 1028 | * |
| 1029 | * Returns 1 in case of success, -1 in case of error, 0 if not found |
| 1030 | */ |
| 1031 | int |
| 1032 | xmlTextReaderMoveToNextAttribute(xmlTextReaderPtr reader) { |
| 1033 | if (reader == NULL) |
| 1034 | return(-1); |
| 1035 | if (reader->node == NULL) |
| 1036 | return(-1); |
| 1037 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1038 | return(0); |
| 1039 | if (reader->curnode == NULL) |
| 1040 | return(xmlTextReaderMoveToFirstAttribute(reader)); |
| 1041 | |
| 1042 | if (reader->curnode->type == XML_NAMESPACE_DECL) { |
| 1043 | xmlNsPtr ns = (xmlNsPtr) reader->curnode; |
| 1044 | if (ns->next != NULL) { |
| 1045 | reader->curnode = (xmlNodePtr) ns->next; |
| 1046 | return(1); |
| 1047 | } |
| 1048 | if (reader->node->properties != NULL) { |
| 1049 | reader->curnode = (xmlNodePtr) reader->node->properties; |
| 1050 | return(1); |
| 1051 | } |
| 1052 | return(0); |
| 1053 | } else if ((reader->curnode->type == XML_ATTRIBUTE_NODE) && |
| 1054 | (reader->curnode->next != NULL)) { |
| 1055 | reader->curnode = reader->curnode->next; |
| 1056 | return(1); |
| 1057 | } |
| 1058 | return(0); |
| 1059 | } |
| 1060 | |
| 1061 | /** |
| 1062 | * xmlTextReaderMoveToElement: |
| 1063 | * @reader: the xmlTextReaderPtr used |
| 1064 | * |
| 1065 | * Moves the position of the current instance to the node that |
| 1066 | * contains the current Attribute node. |
| 1067 | * |
| 1068 | * Returns 1 in case of success, -1 in case of error, 0 if not moved |
| 1069 | */ |
| 1070 | int |
| 1071 | xmlTextReaderMoveToElement(xmlTextReaderPtr reader) { |
| 1072 | if (reader == NULL) |
| 1073 | return(-1); |
| 1074 | if (reader->node == NULL) |
| 1075 | return(-1); |
| 1076 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1077 | return(0); |
| 1078 | if (reader->curnode != NULL) { |
| 1079 | reader->curnode = NULL; |
| 1080 | return(1); |
| 1081 | } |
| 1082 | return(0); |
| 1083 | } |
| 1084 | |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 1085 | /************************************************************************ |
| 1086 | * * |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1087 | * Acces API to the current node * |
| 1088 | * * |
| 1089 | ************************************************************************/ |
| 1090 | /** |
| 1091 | * xmlTextReaderAttributeCount: |
| 1092 | * @reader: the xmlTextReaderPtr used |
| 1093 | * |
Daniel Veillard | a9b66d0 | 2002-12-11 14:23:49 +0000 | [diff] [blame] | 1094 | * Provides the number of attributes of the current node |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1095 | * |
| 1096 | * Returns 0 i no attributes, -1 in case of error or the attribute count |
| 1097 | */ |
| 1098 | int |
| 1099 | xmlTextReaderAttributeCount(xmlTextReaderPtr reader) { |
| 1100 | int ret; |
| 1101 | xmlAttrPtr attr; |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 1102 | xmlNsPtr ns; |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1103 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1104 | |
| 1105 | if (reader == NULL) |
| 1106 | return(-1); |
| 1107 | if (reader->node == NULL) |
| 1108 | return(0); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1109 | |
| 1110 | if (reader->curnode != NULL) |
| 1111 | node = reader->curnode; |
| 1112 | else |
| 1113 | node = reader->node; |
| 1114 | |
| 1115 | if (node->type != XML_ELEMENT_NODE) |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1116 | return(0); |
| 1117 | if ((reader->state == XML_TEXTREADER_END) || |
| 1118 | (reader->state == XML_TEXTREADER_BACKTRACK)) |
| 1119 | return(0); |
| 1120 | ret = 0; |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1121 | attr = node->properties; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1122 | while (attr != NULL) { |
| 1123 | ret++; |
| 1124 | attr = attr->next; |
| 1125 | } |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 1126 | ns = node->nsDef; |
| 1127 | while (ns != NULL) { |
| 1128 | ret++; |
| 1129 | ns = ns->next; |
| 1130 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1131 | return(ret); |
| 1132 | } |
| 1133 | |
| 1134 | /** |
| 1135 | * xmlTextReaderNodeType: |
| 1136 | * @reader: the xmlTextReaderPtr used |
| 1137 | * |
| 1138 | * Get the node type of the current node |
| 1139 | * Reference: |
| 1140 | * http://dotgnu.org/pnetlib-doc/System/Xml/XmlNodeType.html |
| 1141 | * |
| 1142 | * Returns the xmlNodeType of the current node or -1 in case of error |
| 1143 | */ |
| 1144 | int |
| 1145 | xmlTextReaderNodeType(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1146 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1147 | if (reader == NULL) |
| 1148 | return(-1); |
| 1149 | if (reader->node == NULL) |
| 1150 | return(0); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1151 | if (reader->curnode != NULL) |
| 1152 | node = reader->curnode; |
| 1153 | else |
| 1154 | node = reader->node; |
| 1155 | switch (node->type) { |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1156 | case XML_ELEMENT_NODE: |
| 1157 | if ((reader->state == XML_TEXTREADER_END) || |
| 1158 | (reader->state == XML_TEXTREADER_BACKTRACK)) |
| 1159 | return(15); |
| 1160 | return(1); |
| 1161 | case XML_ATTRIBUTE_NODE: |
| 1162 | return(2); |
| 1163 | case XML_TEXT_NODE: |
| 1164 | return(3); /* TODO: SignificantWhitespace == 14 Whitespace == 13 */ |
| 1165 | case XML_CDATA_SECTION_NODE: |
| 1166 | return(4); |
| 1167 | case XML_ENTITY_REF_NODE: |
| 1168 | return(5); |
| 1169 | case XML_ENTITY_NODE: |
| 1170 | return(6); |
| 1171 | case XML_PI_NODE: |
| 1172 | return(7); |
| 1173 | case XML_COMMENT_NODE: |
| 1174 | return(8); |
| 1175 | case XML_DOCUMENT_NODE: |
| 1176 | case XML_HTML_DOCUMENT_NODE: |
| 1177 | #ifdef LIBXML_DOCB_ENABLED |
| 1178 | case XML_DOCB_DOCUMENT_NODE: |
| 1179 | #endif |
| 1180 | return(9); |
| 1181 | case XML_DOCUMENT_FRAG_NODE: |
| 1182 | return(11); |
| 1183 | case XML_NOTATION_NODE: |
| 1184 | return(12); |
| 1185 | case XML_DOCUMENT_TYPE_NODE: |
| 1186 | case XML_DTD_NODE: |
| 1187 | return(10); |
| 1188 | |
| 1189 | case XML_ELEMENT_DECL: |
| 1190 | case XML_ATTRIBUTE_DECL: |
| 1191 | case XML_ENTITY_DECL: |
| 1192 | case XML_NAMESPACE_DECL: |
| 1193 | case XML_XINCLUDE_START: |
| 1194 | case XML_XINCLUDE_END: |
| 1195 | return(0); |
| 1196 | } |
| 1197 | return(-1); |
| 1198 | } |
| 1199 | |
| 1200 | /** |
Daniel Veillard | 01c13b5 | 2002-12-10 15:19:08 +0000 | [diff] [blame] | 1201 | * xmlTextReaderIsEmptyElement: |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1202 | * @reader: the xmlTextReaderPtr used |
| 1203 | * |
| 1204 | * Check if the current node is empty |
| 1205 | * |
| 1206 | * Returns 1 if empty, 0 if not and -1 in case of error |
| 1207 | */ |
| 1208 | int |
| 1209 | xmlTextReaderIsEmptyElement(xmlTextReaderPtr reader) { |
| 1210 | if ((reader == NULL) || (reader->node == NULL)) |
| 1211 | return(-1); |
| 1212 | if (reader->node->children != NULL) |
| 1213 | return(0); |
| 1214 | if ((reader->state == XML_TEXTREADER_EMPTY) || |
| 1215 | (reader->state == XML_TEXTREADER_BACKTRACK)) |
| 1216 | return(1); |
| 1217 | return(0); |
| 1218 | } |
| 1219 | |
| 1220 | /** |
| 1221 | * xmlTextReaderLocalName: |
| 1222 | * @reader: the xmlTextReaderPtr used |
| 1223 | * |
| 1224 | * The local name of the node. |
| 1225 | * |
| 1226 | * Returns the local name or NULL if not available |
| 1227 | */ |
| 1228 | xmlChar * |
| 1229 | xmlTextReaderLocalName(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1230 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1231 | if ((reader == NULL) || (reader->node == NULL)) |
| 1232 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1233 | if (reader->curnode != NULL) |
| 1234 | node = reader->curnode; |
| 1235 | else |
| 1236 | node = reader->node; |
| 1237 | if (node->type == XML_NAMESPACE_DECL) { |
| 1238 | xmlNsPtr ns = (xmlNsPtr) node; |
| 1239 | if (ns->prefix == NULL) |
| 1240 | return(xmlStrdup(BAD_CAST "xmlns")); |
| 1241 | else |
| 1242 | return(xmlStrdup(ns->prefix)); |
| 1243 | } |
| 1244 | if ((node->type != XML_ELEMENT_NODE) && |
| 1245 | (node->type != XML_ATTRIBUTE_NODE)) |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1246 | return(xmlTextReaderName(reader)); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1247 | return(xmlStrdup(node->name)); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1248 | } |
| 1249 | |
| 1250 | /** |
| 1251 | * xmlTextReaderName: |
| 1252 | * @reader: the xmlTextReaderPtr used |
| 1253 | * |
| 1254 | * The qualified name of the node, equal to Prefix :LocalName. |
| 1255 | * |
| 1256 | * Returns the local name or NULL if not available |
| 1257 | */ |
| 1258 | xmlChar * |
| 1259 | xmlTextReaderName(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1260 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1261 | xmlChar *ret; |
| 1262 | |
| 1263 | if ((reader == NULL) || (reader->node == NULL)) |
| 1264 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1265 | if (reader->curnode != NULL) |
| 1266 | node = reader->curnode; |
| 1267 | else |
| 1268 | node = reader->node; |
| 1269 | switch (node->type) { |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1270 | case XML_ELEMENT_NODE: |
| 1271 | case XML_ATTRIBUTE_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1272 | if ((node->ns == NULL) || |
| 1273 | (node->ns->prefix == NULL)) |
| 1274 | return(xmlStrdup(node->name)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1275 | |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1276 | ret = xmlStrdup(node->ns->prefix); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1277 | ret = xmlStrcat(ret, BAD_CAST ":"); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1278 | ret = xmlStrcat(ret, node->name); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1279 | return(ret); |
| 1280 | case XML_TEXT_NODE: |
| 1281 | return(xmlStrdup(BAD_CAST "#text")); |
| 1282 | case XML_CDATA_SECTION_NODE: |
| 1283 | return(xmlStrdup(BAD_CAST "#cdata-section")); |
| 1284 | case XML_ENTITY_NODE: |
| 1285 | case XML_ENTITY_REF_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1286 | return(xmlStrdup(node->name)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1287 | case XML_PI_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1288 | return(xmlStrdup(node->name)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1289 | case XML_COMMENT_NODE: |
| 1290 | return(xmlStrdup(BAD_CAST "#comment")); |
| 1291 | case XML_DOCUMENT_NODE: |
| 1292 | case XML_HTML_DOCUMENT_NODE: |
| 1293 | #ifdef LIBXML_DOCB_ENABLED |
| 1294 | case XML_DOCB_DOCUMENT_NODE: |
| 1295 | #endif |
| 1296 | return(xmlStrdup(BAD_CAST "#document")); |
| 1297 | case XML_DOCUMENT_FRAG_NODE: |
| 1298 | return(xmlStrdup(BAD_CAST "#document-fragment")); |
| 1299 | case XML_NOTATION_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1300 | return(xmlStrdup(node->name)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1301 | case XML_DOCUMENT_TYPE_NODE: |
| 1302 | case XML_DTD_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1303 | return(xmlStrdup(node->name)); |
| 1304 | case XML_NAMESPACE_DECL: { |
| 1305 | xmlNsPtr ns = (xmlNsPtr) node; |
| 1306 | |
| 1307 | ret = xmlStrdup(BAD_CAST "xmlns"); |
| 1308 | if (ns->prefix == NULL) |
| 1309 | return(ret); |
| 1310 | ret = xmlStrcat(ret, BAD_CAST ":"); |
| 1311 | ret = xmlStrcat(ret, ns->prefix); |
| 1312 | return(ret); |
| 1313 | } |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1314 | |
| 1315 | case XML_ELEMENT_DECL: |
| 1316 | case XML_ATTRIBUTE_DECL: |
| 1317 | case XML_ENTITY_DECL: |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1318 | case XML_XINCLUDE_START: |
| 1319 | case XML_XINCLUDE_END: |
| 1320 | return(NULL); |
| 1321 | } |
| 1322 | return(NULL); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1323 | } |
| 1324 | |
| 1325 | /** |
| 1326 | * xmlTextReaderPrefix: |
| 1327 | * @reader: the xmlTextReaderPtr used |
| 1328 | * |
| 1329 | * A shorthand reference to the namespace associated with the node. |
| 1330 | * |
| 1331 | * Returns the prefix or NULL if not available |
| 1332 | */ |
| 1333 | xmlChar * |
| 1334 | xmlTextReaderPrefix(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1335 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1336 | if ((reader == NULL) || (reader->node == NULL)) |
| 1337 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1338 | if (reader->curnode != NULL) |
| 1339 | node = reader->curnode; |
| 1340 | else |
| 1341 | node = reader->node; |
| 1342 | if (node->type == XML_NAMESPACE_DECL) { |
| 1343 | xmlNsPtr ns = (xmlNsPtr) node; |
| 1344 | if (ns->prefix == NULL) |
| 1345 | return(NULL); |
| 1346 | return(xmlStrdup(BAD_CAST "xmlns")); |
| 1347 | } |
| 1348 | if ((node->type != XML_ELEMENT_NODE) && |
| 1349 | (node->type != XML_ATTRIBUTE_NODE)) |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1350 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1351 | if ((node->ns != NULL) || (node->ns->prefix != NULL)) |
| 1352 | return(xmlStrdup(node->ns->prefix)); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1353 | return(NULL); |
| 1354 | } |
| 1355 | |
| 1356 | /** |
| 1357 | * xmlTextReaderNamespaceUri: |
| 1358 | * @reader: the xmlTextReaderPtr used |
| 1359 | * |
| 1360 | * The URI defining the namespace associated with the node. |
| 1361 | * |
| 1362 | * Returns the namespace URI or NULL if not available |
| 1363 | */ |
| 1364 | xmlChar * |
| 1365 | xmlTextReaderNamespaceUri(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1366 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1367 | if ((reader == NULL) || (reader->node == NULL)) |
| 1368 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1369 | if (reader->curnode != NULL) |
| 1370 | node = reader->curnode; |
| 1371 | else |
| 1372 | node = reader->node; |
| 1373 | if (node->type == XML_NAMESPACE_DECL) { |
| 1374 | xmlNsPtr ns = (xmlNsPtr) node; |
| 1375 | return(xmlStrdup(ns->href)); |
| 1376 | } |
| 1377 | if ((node->type != XML_ELEMENT_NODE) && |
| 1378 | (node->type != XML_ATTRIBUTE_NODE)) |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1379 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1380 | if (node->ns != NULL) |
| 1381 | return(xmlStrdup(node->ns->href)); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1382 | return(NULL); |
| 1383 | } |
| 1384 | |
| 1385 | /** |
| 1386 | * xmlTextReaderBaseUri: |
| 1387 | * @reader: the xmlTextReaderPtr used |
| 1388 | * |
| 1389 | * The base URI of the node. |
| 1390 | * |
| 1391 | * Returns the base URI or NULL if not available |
| 1392 | */ |
| 1393 | xmlChar * |
| 1394 | xmlTextReaderBaseUri(xmlTextReaderPtr reader) { |
| 1395 | if ((reader == NULL) || (reader->node == NULL)) |
| 1396 | return(NULL); |
| 1397 | return(xmlNodeGetBase(NULL, reader->node)); |
| 1398 | } |
| 1399 | |
| 1400 | /** |
| 1401 | * xmlTextReaderDepth: |
| 1402 | * @reader: the xmlTextReaderPtr used |
| 1403 | * |
| 1404 | * The depth of the node in the tree. |
| 1405 | * |
| 1406 | * Returns the depth or -1 in case of error |
| 1407 | */ |
| 1408 | int |
| 1409 | xmlTextReaderDepth(xmlTextReaderPtr reader) { |
| 1410 | if (reader == NULL) |
| 1411 | return(-1); |
| 1412 | if (reader->node == NULL) |
| 1413 | return(0); |
| 1414 | |
| 1415 | return(reader->depth); |
| 1416 | } |
| 1417 | |
| 1418 | /** |
| 1419 | * xmlTextReaderHasAttributes: |
| 1420 | * @reader: the xmlTextReaderPtr used |
| 1421 | * |
| 1422 | * Whether the node has attributes. |
| 1423 | * |
| 1424 | * Returns 1 if true, 0 if false, and -1 in case or error |
| 1425 | */ |
| 1426 | int |
| 1427 | xmlTextReaderHasAttributes(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1428 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1429 | if (reader == NULL) |
| 1430 | return(-1); |
| 1431 | if (reader->node == NULL) |
| 1432 | return(0); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1433 | if (reader->curnode != NULL) |
| 1434 | node = reader->curnode; |
| 1435 | else |
| 1436 | node = reader->node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1437 | |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1438 | if ((node->type == XML_ELEMENT_NODE) && |
| 1439 | (node->properties != NULL)) |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1440 | return(1); |
| 1441 | /* TODO: handle the xmlDecl */ |
| 1442 | return(0); |
| 1443 | } |
| 1444 | |
| 1445 | /** |
| 1446 | * xmlTextReaderHasValue: |
| 1447 | * @reader: the xmlTextReaderPtr used |
| 1448 | * |
| 1449 | * Whether the node can have a text value. |
| 1450 | * |
| 1451 | * Returns 1 if true, 0 if false, and -1 in case or error |
| 1452 | */ |
| 1453 | int |
| 1454 | xmlTextReaderHasValue(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1455 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1456 | if (reader == NULL) |
| 1457 | return(-1); |
| 1458 | if (reader->node == NULL) |
| 1459 | return(0); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1460 | if (reader->curnode != NULL) |
| 1461 | node = reader->curnode; |
| 1462 | else |
| 1463 | node = reader->node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1464 | |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1465 | switch (node->type) { |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1466 | case XML_ATTRIBUTE_NODE: |
| 1467 | case XML_TEXT_NODE: |
| 1468 | case XML_CDATA_SECTION_NODE: |
| 1469 | case XML_PI_NODE: |
| 1470 | case XML_COMMENT_NODE: |
| 1471 | return(1); |
| 1472 | default: |
| 1473 | return(0); |
| 1474 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1475 | return(0); |
| 1476 | } |
| 1477 | |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1478 | /** |
| 1479 | * xmlTextReaderValue: |
| 1480 | * @reader: the xmlTextReaderPtr used |
| 1481 | * |
| 1482 | * Provides the text value of the node if present |
| 1483 | * |
| 1484 | * Returns the string or NULL if not available. The retsult must be deallocated |
| 1485 | * with xmlFree() |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1486 | */ |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1487 | xmlChar * |
| 1488 | xmlTextReaderValue(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1489 | xmlNodePtr node; |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1490 | if (reader == NULL) |
| 1491 | return(NULL); |
| 1492 | if (reader->node == NULL) |
| 1493 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1494 | if (reader->curnode != NULL) |
| 1495 | node = reader->curnode; |
| 1496 | else |
| 1497 | node = reader->node; |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1498 | |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1499 | switch (node->type) { |
| 1500 | case XML_NAMESPACE_DECL: |
| 1501 | return(xmlStrdup(((xmlNsPtr) node)->href)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1502 | case XML_ATTRIBUTE_NODE:{ |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1503 | xmlAttrPtr attr = (xmlAttrPtr) node; |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1504 | |
| 1505 | if (attr->parent != NULL) |
| 1506 | return (xmlNodeListGetString |
| 1507 | (attr->parent->doc, attr->children, 1)); |
| 1508 | else |
| 1509 | return (xmlNodeListGetString(NULL, attr->children, 1)); |
| 1510 | break; |
| 1511 | } |
| 1512 | case XML_TEXT_NODE: |
| 1513 | case XML_CDATA_SECTION_NODE: |
| 1514 | case XML_PI_NODE: |
| 1515 | case XML_COMMENT_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1516 | if (node->content != NULL) |
| 1517 | return (xmlStrdup(node->content)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1518 | default: |
| 1519 | return(NULL); |
| 1520 | } |
| 1521 | return(NULL); |
| 1522 | } |
| 1523 | |
| 1524 | /** |
| 1525 | * xmlTextReaderIsDefault: |
| 1526 | * @reader: the xmlTextReaderPtr used |
| 1527 | * |
| 1528 | * Whether an Attribute node was generated from the default value |
| 1529 | * defined in the DTD or schema. |
| 1530 | * |
| 1531 | * Returns 0 if not defaulted, 1 if defaulted, and -1 in case of error |
| 1532 | */ |
| 1533 | int |
| 1534 | xmlTextReaderIsDefault(xmlTextReaderPtr reader) { |
| 1535 | if (reader == NULL) |
| 1536 | return(-1); |
| 1537 | return(0); |
| 1538 | } |
| 1539 | |
| 1540 | /** |
| 1541 | * xmlTextReaderQuoteChar: |
| 1542 | * @reader: the xmlTextReaderPtr used |
| 1543 | * |
| 1544 | * The quotation mark character used to enclose the value of an attribute. |
| 1545 | * |
| 1546 | * Returns " or ' and -1 in case of error |
| 1547 | */ |
| 1548 | int |
| 1549 | xmlTextReaderQuoteChar(xmlTextReaderPtr reader) { |
| 1550 | if (reader == NULL) |
| 1551 | return(-1); |
| 1552 | /* TODO maybe lookup the attribute value for " first */ |
| 1553 | return((int) '"'); |
| 1554 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1555 | |
| 1556 | /** |
| 1557 | * xmlTextReaderXmlLang: |
| 1558 | * @reader: the xmlTextReaderPtr used |
| 1559 | * |
| 1560 | * The xml:lang scope within which the node resides. |
| 1561 | * |
| 1562 | * Returns the xml:lang value or NULL if none exists. |
| 1563 | */ |
| 1564 | xmlChar * |
| 1565 | xmlTextReaderXmlLang(xmlTextReaderPtr reader) { |
| 1566 | if (reader == NULL) |
| 1567 | return(NULL); |
| 1568 | if (reader->node == NULL) |
| 1569 | return(NULL); |
| 1570 | return(xmlNodeGetLang(reader->node)); |
| 1571 | } |
| 1572 | |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 1573 | /** |
| 1574 | * xmlTextReaderNormalization: |
| 1575 | * @reader: the xmlTextReaderPtr used |
| 1576 | * |
| 1577 | * The value indicating whether to normalize white space and attribute values. |
| 1578 | * Since attribute value and end of line normalizations are a MUST in the XML |
| 1579 | * specification only the value true is accepted. The broken bahaviour of |
| 1580 | * accepting out of range character entities like � is of course not |
| 1581 | * supported either. |
| 1582 | * |
| 1583 | * Returns 1 or -1 in case of error. |
| 1584 | */ |
| 1585 | int |
| 1586 | xmlTextReaderNormalization(xmlTextReaderPtr reader) { |
| 1587 | if (reader == NULL) |
| 1588 | return(-1); |
| 1589 | return(1); |
| 1590 | } |
| 1591 | |