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 | |
Daniel Veillard | 7704fb1 | 2003-01-03 16:19:51 +0000 | [diff] [blame] | 13 | /* |
| 14 | * TODOs: |
| 15 | * - provide an API to expand part of the tree |
| 16 | * - provide an API to preserve part of the tree |
| 17 | * - Streaming XInclude support |
| 18 | * - setting(s) for NoBlanks |
| 19 | * - performances and tuning ... |
| 20 | */ |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 21 | #define IN_LIBXML |
| 22 | #include "libxml.h" |
| 23 | |
| 24 | #include <string.h> /* for memset() only ! */ |
| 25 | |
| 26 | #ifdef HAVE_CTYPE_H |
| 27 | #include <ctype.h> |
| 28 | #endif |
| 29 | #ifdef HAVE_STDLIB_H |
| 30 | #include <stdlib.h> |
| 31 | #endif |
| 32 | |
| 33 | #include <libxml/xmlmemory.h> |
| 34 | #include <libxml/xmlIO.h> |
| 35 | #include <libxml/xmlreader.h> |
| 36 | |
| 37 | /* #define DEBUG_CALLBACKS */ |
| 38 | /* #define DEBUG_READER */ |
| 39 | |
| 40 | /** |
| 41 | * TODO: |
| 42 | * |
| 43 | * macro to flag unimplemented blocks |
| 44 | */ |
| 45 | #define TODO \ |
| 46 | xmlGenericError(xmlGenericErrorContext, \ |
| 47 | "Unimplemented block at %s:%d\n", \ |
| 48 | __FILE__, __LINE__); |
| 49 | |
| 50 | #ifdef DEBUG_READER |
| 51 | #define DUMP_READER xmlTextReaderDebug(reader); |
| 52 | #else |
| 53 | #define DUMP_READER |
| 54 | #endif |
| 55 | |
| 56 | /************************************************************************ |
| 57 | * * |
| 58 | * The parser: maps the Text Reader API on top of the existing * |
| 59 | * parsing routines building a tree * |
| 60 | * * |
| 61 | ************************************************************************/ |
| 62 | |
| 63 | #define XML_TEXTREADER_INPUT 1 |
| 64 | #define XML_TEXTREADER_CTXT 2 |
| 65 | |
| 66 | typedef enum { |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 67 | XML_TEXTREADER_MODE_INITIAL = 0, |
| 68 | XML_TEXTREADER_MODE_INTERACTIVE = 1, |
| 69 | XML_TEXTREADER_MODE_ERROR = 2, |
| 70 | XML_TEXTREADER_MODE_EOF =3, |
| 71 | XML_TEXTREADER_MODE_CLOSED = 4, |
| 72 | XML_TEXTREADER_MODE_READING = 5 |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 73 | } xmlTextReaderMode; |
| 74 | |
| 75 | typedef enum { |
| 76 | XML_TEXTREADER_NONE = -1, |
| 77 | XML_TEXTREADER_START= 0, |
| 78 | XML_TEXTREADER_ELEMENT= 1, |
| 79 | XML_TEXTREADER_END= 2, |
| 80 | XML_TEXTREADER_EMPTY= 3, |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 81 | XML_TEXTREADER_BACKTRACK= 4, |
| 82 | XML_TEXTREADER_DONE= 5 |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 83 | } xmlTextReaderState; |
| 84 | |
| 85 | struct _xmlTextReader { |
| 86 | int mode; /* the parsing mode */ |
| 87 | int allocs; /* what structure were deallocated */ |
| 88 | xmlTextReaderState state; |
| 89 | xmlParserCtxtPtr ctxt; /* the parser context */ |
| 90 | xmlSAXHandlerPtr sax; /* the parser SAX callbacks */ |
| 91 | xmlParserInputBufferPtr input; /* the input */ |
| 92 | startElementSAXFunc startElement;/* initial SAX callbacks */ |
| 93 | endElementSAXFunc endElement; /* idem */ |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 94 | charactersSAXFunc characters; |
| 95 | cdataBlockSAXFunc cdataBlock; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 96 | unsigned int base; /* base of the segment in the input */ |
| 97 | unsigned int cur; /* current position in the input */ |
| 98 | xmlNodePtr node; /* current node */ |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 99 | xmlNodePtr curnode;/* current attribute node */ |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 100 | int depth; /* depth of the current node */ |
Daniel Veillard | beb70bd | 2002-12-18 14:53:54 +0000 | [diff] [blame] | 101 | xmlNodePtr faketext;/* fake xmlNs chld */ |
Daniel Veillard | df512f4 | 2002-12-23 15:56:21 +0000 | [diff] [blame] | 102 | int wasempty;/* was the last node empty */ |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 103 | |
| 104 | /* entity stack when traversing entities content */ |
| 105 | xmlNodePtr ent; /* Current Entity Ref Node */ |
| 106 | int entNr; /* Depth of the entities stack */ |
| 107 | int entMax; /* Max depth of the entities stack */ |
| 108 | xmlNodePtr *entTab; /* array of entities */ |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 109 | }; |
| 110 | |
| 111 | #ifdef DEBUG_READER |
| 112 | static void |
| 113 | xmlTextReaderDebug(xmlTextReaderPtr reader) { |
| 114 | if ((reader == NULL) || (reader->ctxt == NULL)) { |
| 115 | fprintf(stderr, "xmlTextReader NULL\n"); |
| 116 | return; |
| 117 | } |
| 118 | fprintf(stderr, "xmlTextReader: state %d depth %d ", |
| 119 | reader->state, reader->depth); |
| 120 | if (reader->node == NULL) { |
| 121 | fprintf(stderr, "node = NULL\n"); |
| 122 | } else { |
| 123 | fprintf(stderr, "node %s\n", reader->node->name); |
| 124 | } |
| 125 | fprintf(stderr, " input: base %d, cur %d, depth %d: ", |
| 126 | reader->base, reader->cur, reader->ctxt->nodeNr); |
| 127 | if (reader->input->buffer == NULL) { |
| 128 | fprintf(stderr, "buffer is NULL\n"); |
| 129 | } else { |
| 130 | #ifdef LIBXML_DEBUG_ENABLED |
| 131 | xmlDebugDumpString(stderr, |
| 132 | &reader->input->buffer->content[reader->cur]); |
| 133 | #endif |
| 134 | fprintf(stderr, "\n"); |
| 135 | } |
| 136 | } |
| 137 | #endif |
| 138 | |
| 139 | /** |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 140 | * xmlTextReaderEntPush: |
| 141 | * @reader: the xmlTextReaderPtr used |
| 142 | * @value: the entity reference node |
| 143 | * |
| 144 | * Pushes a new entity reference node on top of the entities stack |
| 145 | * |
| 146 | * Returns 0 in case of error, the index in the stack otherwise |
| 147 | */ |
| 148 | static int |
| 149 | xmlTextReaderEntPush(xmlTextReaderPtr reader, xmlNodePtr value) |
| 150 | { |
| 151 | if (reader->entMax <= 0) { |
| 152 | reader->entMax = 10; |
| 153 | reader->entTab = (xmlNodePtr *) xmlMalloc(reader->entMax * |
| 154 | sizeof(reader->entTab[0])); |
| 155 | if (reader->entTab == NULL) { |
| 156 | xmlGenericError(xmlGenericErrorContext, "xmlMalloc failed !\n"); |
| 157 | return (0); |
| 158 | } |
| 159 | } |
| 160 | if (reader->entNr >= reader->entMax) { |
| 161 | reader->entMax *= 2; |
| 162 | reader->entTab = |
| 163 | (xmlNodePtr *) xmlRealloc(reader->entTab, |
| 164 | reader->entMax * |
| 165 | sizeof(reader->entTab[0])); |
| 166 | if (reader->entTab == NULL) { |
| 167 | xmlGenericError(xmlGenericErrorContext, "xmlRealloc failed !\n"); |
| 168 | return (0); |
| 169 | } |
| 170 | } |
| 171 | reader->entTab[reader->entNr] = value; |
| 172 | reader->ent = value; |
| 173 | return (reader->entNr++); |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * xmlTextReaderEntPop: |
| 178 | * @reader: the xmlTextReaderPtr used |
| 179 | * |
| 180 | * Pops the top element entity from the entities stack |
| 181 | * |
| 182 | * Returns the entity just removed |
| 183 | */ |
| 184 | static xmlNodePtr |
| 185 | xmlTextReaderEntPop(xmlTextReaderPtr reader) |
| 186 | { |
| 187 | xmlNodePtr ret; |
| 188 | |
| 189 | if (reader->entNr <= 0) |
| 190 | return (0); |
| 191 | reader->entNr--; |
| 192 | if (reader->entNr > 0) |
| 193 | reader->ent = reader->entTab[reader->entNr - 1]; |
| 194 | else |
| 195 | reader->ent = NULL; |
| 196 | ret = reader->entTab[reader->entNr]; |
| 197 | reader->entTab[reader->entNr] = 0; |
| 198 | return (ret); |
| 199 | } |
| 200 | |
| 201 | /** |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 202 | * xmlTextReaderStartElement: |
| 203 | * @ctx: the user data (XML parser context) |
| 204 | * @fullname: The element name, including namespace prefix |
| 205 | * @atts: An array of name/value attributes pairs, NULL terminated |
| 206 | * |
| 207 | * called when an opening tag has been processed. |
| 208 | */ |
| 209 | static void |
| 210 | xmlTextReaderStartElement(void *ctx, const xmlChar *fullname, |
| 211 | const xmlChar **atts) { |
| 212 | xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; |
Daniel Veillard | d589614 | 2002-12-31 14:45:26 +0000 | [diff] [blame] | 213 | xmlParserCtxtPtr origctxt; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 214 | xmlTextReaderPtr reader = ctxt->_private; |
| 215 | |
| 216 | #ifdef DEBUG_CALLBACKS |
| 217 | printf("xmlTextReaderStartElement(%s)\n", fullname); |
| 218 | #endif |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 219 | if ((reader != NULL) && (reader->startElement != NULL)) { |
Daniel Veillard | d589614 | 2002-12-31 14:45:26 +0000 | [diff] [blame] | 220 | /* |
| 221 | * when processing an entity, the context may have been changed |
| 222 | */ |
| 223 | origctxt = reader->ctxt; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 224 | reader->startElement(ctx, fullname, atts); |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 225 | #if 0 |
| 226 | 123 |
Daniel Veillard | d589614 | 2002-12-31 14:45:26 +0000 | [diff] [blame] | 227 | if (origctxt->validate) { |
| 228 | ctxt->valid &= xmlValidatePushElement(&origctxt->vctxt, |
| 229 | ctxt->myDoc, ctxt->node, fullname); |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 230 | } |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 231 | #endif |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 232 | } |
Daniel Veillard | 9e395c2 | 2003-01-01 14:50:44 +0000 | [diff] [blame] | 233 | if (reader != NULL) |
| 234 | reader->state = XML_TEXTREADER_ELEMENT; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 235 | } |
| 236 | |
| 237 | /** |
| 238 | * xmlTextReaderEndElement: |
| 239 | * @ctx: the user data (XML parser context) |
| 240 | * @fullname: The element name, including namespace prefix |
| 241 | * |
| 242 | * called when an ending tag has been processed. |
| 243 | */ |
| 244 | static void |
| 245 | xmlTextReaderEndElement(void *ctx, const xmlChar *fullname) { |
| 246 | xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; |
Daniel Veillard | d589614 | 2002-12-31 14:45:26 +0000 | [diff] [blame] | 247 | xmlParserCtxtPtr origctxt; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 248 | xmlTextReaderPtr reader = ctxt->_private; |
| 249 | |
| 250 | #ifdef DEBUG_CALLBACKS |
| 251 | printf("xmlTextReaderEndElement(%s)\n", fullname); |
| 252 | #endif |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 253 | if ((reader != NULL) && (reader->endElement != NULL)) { |
Daniel Veillard | d589614 | 2002-12-31 14:45:26 +0000 | [diff] [blame] | 254 | /* |
| 255 | * when processing an entity, the context may have been changed |
| 256 | */ |
| 257 | origctxt = reader->ctxt; |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 258 | |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 259 | reader->endElement(ctx, fullname); |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 260 | } |
Daniel Veillard | 9e395c2 | 2003-01-01 14:50:44 +0000 | [diff] [blame] | 261 | if (reader != NULL) { |
| 262 | if (reader->state == XML_TEXTREADER_ELEMENT) |
| 263 | reader->wasempty = 1; |
| 264 | else |
| 265 | reader->wasempty = 0; |
| 266 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 267 | } |
| 268 | |
| 269 | /** |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 270 | * xmlTextReaderCharacters: |
| 271 | * @ctx: the user data (XML parser context) |
| 272 | * @ch: a xmlChar string |
| 273 | * @len: the number of xmlChar |
| 274 | * |
| 275 | * receiving some chars from the parser. |
| 276 | */ |
| 277 | static void |
| 278 | xmlTextReaderCharacters(void *ctx, const xmlChar *ch, int len) |
| 279 | { |
| 280 | xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; |
Daniel Veillard | d589614 | 2002-12-31 14:45:26 +0000 | [diff] [blame] | 281 | xmlParserCtxtPtr origctxt; |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 282 | xmlTextReaderPtr reader = ctxt->_private; |
| 283 | |
| 284 | #ifdef DEBUG_CALLBACKS |
| 285 | printf("xmlTextReaderCharacters()\n"); |
| 286 | #endif |
| 287 | if ((reader != NULL) && (reader->characters != NULL)) { |
| 288 | reader->characters(ctx, ch, len); |
Daniel Veillard | d589614 | 2002-12-31 14:45:26 +0000 | [diff] [blame] | 289 | /* |
| 290 | * when processing an entity, the context may have been changed |
| 291 | */ |
| 292 | origctxt = reader->ctxt; |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 293 | |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 294 | #if 0 |
| 295 | 123 |
Daniel Veillard | d589614 | 2002-12-31 14:45:26 +0000 | [diff] [blame] | 296 | if (origctxt->validate) { |
| 297 | ctxt->valid &= xmlValidatePushCData(&origctxt->vctxt, ch, len); |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 298 | } |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 299 | #endif |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 300 | } |
| 301 | } |
| 302 | |
| 303 | /** |
| 304 | * xmlTextReaderCDataBlock: |
| 305 | * @ctx: the user data (XML parser context) |
| 306 | * @value: The pcdata content |
| 307 | * @len: the block length |
| 308 | * |
| 309 | * called when a pcdata block has been parsed |
| 310 | */ |
| 311 | static void |
| 312 | xmlTextReaderCDataBlock(void *ctx, const xmlChar *ch, int len) |
| 313 | { |
| 314 | xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; |
| 315 | xmlTextReaderPtr reader = ctxt->_private; |
| 316 | |
| 317 | #ifdef DEBUG_CALLBACKS |
| 318 | printf("xmlTextReaderCDataBlock()\n"); |
| 319 | #endif |
| 320 | if ((reader != NULL) && (reader->cdataBlock != NULL)) { |
| 321 | reader->cdataBlock(ctx, ch, len); |
| 322 | |
| 323 | if (ctxt->validate) { |
| 324 | ctxt->valid &= xmlValidatePushCData(&ctxt->vctxt, ch, len); |
| 325 | } |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | /** |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 330 | * xmlTextReaderPushData: |
| 331 | * @reader: the xmlTextReaderPtr used |
| 332 | * |
| 333 | * Push data down the progressive parser until a significant callback |
| 334 | * got raised. |
| 335 | * |
| 336 | * Returns -1 in case of failure, 0 otherwise |
| 337 | */ |
| 338 | static int |
| 339 | xmlTextReaderPushData(xmlTextReaderPtr reader) { |
| 340 | unsigned int cur = reader->cur; |
| 341 | xmlBufferPtr inbuf; |
| 342 | int val; |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 343 | int oldstate; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 344 | |
| 345 | if ((reader->input == NULL) || (reader->input->buffer == NULL)) |
| 346 | return(-1); |
| 347 | |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 348 | oldstate = reader->state; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 349 | reader->state = XML_TEXTREADER_NONE; |
| 350 | inbuf = reader->input->buffer; |
| 351 | while (reader->state == XML_TEXTREADER_NONE) { |
| 352 | if (cur >= inbuf->use) { |
| 353 | /* |
| 354 | * Refill the buffer unless we are at the end of the stream |
| 355 | */ |
| 356 | if (reader->mode != XML_TEXTREADER_MODE_EOF) { |
| 357 | val = xmlParserInputBufferRead(reader->input, 4096); |
| 358 | if (val <= 0) { |
| 359 | reader->mode = XML_TEXTREADER_MODE_EOF; |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 360 | reader->state = oldstate; |
Daniel Veillard | aaa105b | 2002-12-30 11:42:17 +0000 | [diff] [blame] | 361 | if ((oldstate != XML_TEXTREADER_START) || |
| 362 | (reader->ctxt->myDoc != NULL)) |
| 363 | return(val); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 364 | } |
| 365 | } else |
| 366 | break; |
| 367 | } |
Daniel Veillard | 7704fb1 | 2003-01-03 16:19:51 +0000 | [diff] [blame] | 368 | if (inbuf->content[cur] == '>') { |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 369 | cur = cur + 1; |
| 370 | val = xmlParseChunk(reader->ctxt, |
| 371 | (const char *) &inbuf->content[reader->cur], |
| 372 | cur - reader->cur, 0); |
| 373 | if (val != 0) |
| 374 | return(-1); |
| 375 | reader->cur = cur; |
| 376 | break; |
| 377 | } else { |
| 378 | cur = cur + 1; |
| 379 | |
| 380 | /* |
| 381 | * One may have to force a flush at some point when parsing really |
| 382 | * large CDATA sections |
| 383 | */ |
| 384 | if ((cur - reader->cur > 4096) && (reader->base == 0) && |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 385 | (reader->mode == XML_TEXTREADER_MODE_INTERACTIVE)) { |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 386 | cur = cur + 1; |
| 387 | val = xmlParseChunk(reader->ctxt, |
| 388 | (const char *) &inbuf->content[reader->cur], |
| 389 | cur - reader->cur, 0); |
| 390 | if (val != 0) |
| 391 | return(-1); |
| 392 | reader->cur = cur; |
| 393 | } |
| 394 | } |
| 395 | } |
| 396 | /* |
| 397 | * Discard the consumed input when needed and possible |
| 398 | */ |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 399 | if (reader->mode == XML_TEXTREADER_MODE_INTERACTIVE) { |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 400 | if ((reader->cur >= 4096) && (reader->base == 0)) { |
| 401 | val = xmlBufferShrink(inbuf, cur); |
| 402 | if (val >= 0) { |
| 403 | reader->cur -= val; |
| 404 | } |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | /* |
| 409 | * At the end of the stream signal that the work is done to the Push |
| 410 | * parser. |
| 411 | */ |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 412 | if (reader->mode == XML_TEXTREADER_MODE_EOF) { |
| 413 | if (reader->mode != XML_TEXTREADER_DONE) { |
| 414 | val = xmlParseChunk(reader->ctxt, |
| 415 | (const char *) &inbuf->content[reader->cur], 0, 1); |
| 416 | reader->mode = XML_TEXTREADER_DONE; |
| 417 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 418 | } |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 419 | reader->state = oldstate; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 420 | return(0); |
| 421 | } |
| 422 | |
| 423 | /** |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 424 | * xmlTextReaderValidatePush: |
| 425 | * @reader: the xmlTextReaderPtr used |
| 426 | * |
| 427 | * Push the current node for validation |
| 428 | */ |
| 429 | static void |
| 430 | xmlTextReaderValidatePush(xmlTextReaderPtr reader) { |
| 431 | xmlNodePtr node = reader->node; |
| 432 | |
| 433 | if ((node->ns == NULL) || (node->ns->prefix == NULL)) { |
| 434 | reader->ctxt->valid &= xmlValidatePushElement(&reader->ctxt->vctxt, |
| 435 | reader->ctxt->myDoc, node, node->name); |
| 436 | } else { |
| 437 | xmlChar *qname; |
| 438 | |
| 439 | qname = xmlStrdup(node->ns->prefix); |
| 440 | qname = xmlStrcat(qname, BAD_CAST ":"); |
| 441 | qname = xmlStrcat(qname, node->name); |
| 442 | reader->ctxt->valid &= xmlValidatePushElement(&reader->ctxt->vctxt, |
| 443 | reader->ctxt->myDoc, node, qname); |
| 444 | if (qname != NULL) |
| 445 | xmlFree(qname); |
| 446 | } |
| 447 | } |
| 448 | /** |
| 449 | * xmlTextReaderValidatePop: |
| 450 | * @reader: the xmlTextReaderPtr used |
| 451 | * |
| 452 | * Pop the current node from validation |
| 453 | */ |
| 454 | static void |
| 455 | xmlTextReaderValidatePop(xmlTextReaderPtr reader) { |
| 456 | xmlNodePtr node = reader->node; |
| 457 | |
| 458 | if ((node->ns == NULL) || (node->ns->prefix == NULL)) { |
| 459 | reader->ctxt->valid &= xmlValidatePopElement(&reader->ctxt->vctxt, |
| 460 | reader->ctxt->myDoc, node, node->name); |
| 461 | } else { |
| 462 | xmlChar *qname; |
| 463 | |
| 464 | qname = xmlStrdup(node->ns->prefix); |
| 465 | qname = xmlStrcat(qname, BAD_CAST ":"); |
| 466 | qname = xmlStrcat(qname, node->name); |
| 467 | reader->ctxt->valid &= xmlValidatePopElement(&reader->ctxt->vctxt, |
| 468 | reader->ctxt->myDoc, node, qname); |
| 469 | if (qname != NULL) |
| 470 | xmlFree(qname); |
| 471 | } |
| 472 | } |
Daniel Veillard | a80ff6e | 2003-01-03 12:52:08 +0000 | [diff] [blame] | 473 | /** |
| 474 | * xmlTextReaderValidateEntity: |
| 475 | * @reader: the xmlTextReaderPtr used |
| 476 | * |
| 477 | * Handle the validation when an entity reference is encountered and |
| 478 | * entity substitution is not activated. As a result the parser interface |
| 479 | * must walk through the entity and do the validation calls |
| 480 | */ |
| 481 | static void |
| 482 | xmlTextReaderValidateEntity(xmlTextReaderPtr reader) { |
| 483 | xmlNodePtr oldnode = reader->node; |
| 484 | xmlNodePtr node = reader->node; |
| 485 | xmlParserCtxtPtr ctxt = reader->ctxt; |
| 486 | |
| 487 | do { |
| 488 | if (node->type == XML_ENTITY_REF_NODE) { |
| 489 | /* |
| 490 | * Case where the underlying tree is not availble, lookup the entity |
| 491 | * and walk it. |
| 492 | */ |
| 493 | if ((node->children == NULL) && (ctxt->sax != NULL) && |
| 494 | (ctxt->sax->getEntity != NULL)) { |
| 495 | node->children = (xmlNodePtr) |
| 496 | ctxt->sax->getEntity(ctxt, node->name); |
| 497 | } |
| 498 | |
| 499 | if ((node->children != NULL) && |
| 500 | (node->children->type == XML_ENTITY_DECL) && |
| 501 | (node->children->children != NULL)) { |
| 502 | xmlTextReaderEntPush(reader, node); |
| 503 | node = node->children->children; |
| 504 | continue; |
| 505 | } else { |
| 506 | /* |
| 507 | * The error has probably be raised already. |
| 508 | */ |
| 509 | if (node == oldnode) |
| 510 | break; |
| 511 | node = node->next; |
| 512 | } |
| 513 | } else if (node->type == XML_ELEMENT_NODE) { |
| 514 | reader->node = node; |
| 515 | xmlTextReaderValidatePush(reader); |
| 516 | } else if ((node->type == XML_TEXT_NODE) || |
| 517 | (node->type == XML_CDATA_SECTION_NODE)) { |
| 518 | ctxt->valid &= xmlValidatePushCData(&ctxt->vctxt, |
| 519 | node->content, xmlStrlen(node->content)); |
| 520 | } |
| 521 | |
| 522 | /* |
| 523 | * go to next node |
| 524 | */ |
| 525 | if (node->children != NULL) { |
| 526 | node = node->children; |
| 527 | continue; |
| 528 | } |
| 529 | if (node->next != NULL) { |
| 530 | node = node->next; |
| 531 | continue; |
| 532 | } |
| 533 | do { |
| 534 | node = node->parent; |
| 535 | if (node->type == XML_ELEMENT_NODE) { |
| 536 | reader->node = node; |
| 537 | xmlTextReaderValidatePop(reader); |
| 538 | } |
| 539 | if ((node->type == XML_ENTITY_DECL) && |
| 540 | (reader->ent != NULL) && (reader->ent->children == node)) { |
| 541 | node = xmlTextReaderEntPop(reader); |
| 542 | } |
| 543 | if (node == oldnode) |
| 544 | break; |
| 545 | if (node->next != NULL) { |
| 546 | node = node->next; |
| 547 | break; |
| 548 | } |
| 549 | } while ((node != NULL) && (node != oldnode)); |
| 550 | } while ((node != NULL) && (node != oldnode)); |
| 551 | reader->node = oldnode; |
| 552 | } |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 553 | |
| 554 | |
| 555 | /** |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 556 | * xmlTextReaderRead: |
| 557 | * @reader: the xmlTextReaderPtr used |
| 558 | * |
| 559 | * Moves the position of the current instance to the next node in |
| 560 | * the stream, exposing its properties. |
| 561 | * |
| 562 | * Returns 1 if the node was read successfully, 0 if there is no more |
| 563 | * nodes to read, or -1 in case of error |
| 564 | */ |
| 565 | int |
| 566 | xmlTextReaderRead(xmlTextReaderPtr reader) { |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 567 | int val, olddepth = 0, wasempty = 0; |
| 568 | xmlTextReaderState oldstate = 0; |
| 569 | xmlNodePtr oldnode = NULL; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 570 | |
| 571 | if ((reader == NULL) || (reader->ctxt == NULL)) |
| 572 | return(-1); |
| 573 | if (reader->ctxt->wellFormed != 1) |
| 574 | return(-1); |
| 575 | |
| 576 | #ifdef DEBUG_READER |
| 577 | fprintf(stderr, "\nREAD "); |
| 578 | DUMP_READER |
| 579 | #endif |
Daniel Veillard | 29b3e28 | 2002-12-29 11:14:41 +0000 | [diff] [blame] | 580 | reader->curnode = NULL; |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 581 | if (reader->mode == XML_TEXTREADER_MODE_INITIAL) { |
| 582 | reader->mode = XML_TEXTREADER_MODE_INTERACTIVE; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 583 | /* |
| 584 | * Initial state |
| 585 | */ |
| 586 | do { |
| 587 | val = xmlTextReaderPushData(reader); |
| 588 | if (val < 0) |
| 589 | return(-1); |
| 590 | } while ((reader->ctxt->node == NULL) && |
| 591 | (reader->mode != XML_TEXTREADER_MODE_EOF)); |
| 592 | if (reader->ctxt->node == NULL) { |
Daniel Veillard | dab8ea9 | 2003-01-02 14:16:45 +0000 | [diff] [blame] | 593 | if (reader->ctxt->myDoc != NULL) { |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 594 | reader->node = reader->ctxt->myDoc->children; |
Daniel Veillard | dab8ea9 | 2003-01-02 14:16:45 +0000 | [diff] [blame] | 595 | if ((reader->ctxt->input != NULL) && |
| 596 | (reader->ctxt->input->cur != NULL) && |
| 597 | (reader->ctxt->input->cur[-2] != '/')) |
| 598 | reader->wasempty = -1; |
| 599 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 600 | if (reader->node == NULL) |
| 601 | return(-1); |
Daniel Veillard | dab8ea9 | 2003-01-02 14:16:45 +0000 | [diff] [blame] | 602 | reader->state = XML_TEXTREADER_ELEMENT; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 603 | } else { |
Daniel Veillard | 4d8db8a | 2002-12-30 18:40:42 +0000 | [diff] [blame] | 604 | reader->node = reader->ctxt->nodeTab[0]; |
Daniel Veillard | e59494f | 2003-01-04 16:35:29 +0000 | [diff] [blame] | 605 | reader->state = XML_TEXTREADER_ELEMENT; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 606 | } |
Daniel Veillard | 4d8db8a | 2002-12-30 18:40:42 +0000 | [diff] [blame] | 607 | reader->depth = 0; |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 608 | goto node_found; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 609 | } |
| 610 | oldstate = reader->state; |
| 611 | olddepth = reader->ctxt->nodeNr; |
| 612 | oldnode = reader->node; |
Daniel Veillard | dab8ea9 | 2003-01-02 14:16:45 +0000 | [diff] [blame] | 613 | /* |
| 614 | * the <p></p> vs. <p/> distinction at the API level royally sucks, |
| 615 | * Microsoft priviledge ... |
| 616 | */ |
| 617 | if (reader->wasempty == -1) |
| 618 | wasempty = 0; |
| 619 | else |
| 620 | wasempty = (((reader->wasempty == 1) && (reader->ctxt->node != NULL) && |
Daniel Veillard | e3c036e | 2003-01-01 15:11:05 +0000 | [diff] [blame] | 621 | (reader->ctxt->node->last == reader->node)) || |
| 622 | (reader->node != reader->ctxt->node)); |
Daniel Veillard | df512f4 | 2002-12-23 15:56:21 +0000 | [diff] [blame] | 623 | |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 624 | get_next_node: |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 625 | /* |
| 626 | * If we are not backtracking on ancestors or examined nodes, |
| 627 | * that the parser didn't finished or that we arent at the end |
| 628 | * of stream, continue processing. |
| 629 | */ |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 630 | while (((oldstate == XML_TEXTREADER_BACKTRACK) || |
| 631 | (reader->node->children == NULL) || |
| 632 | (reader->node->type == XML_ENTITY_REF_NODE) || |
| 633 | (reader->node->type == XML_DTD_NODE)) && |
| 634 | (reader->node->next == NULL) && |
| 635 | (reader->ctxt->nodeNr == olddepth) && |
| 636 | (reader->ctxt->instate != XML_PARSER_EOF)) { |
| 637 | val = xmlTextReaderPushData(reader); |
| 638 | if (val < 0) |
| 639 | return(-1); |
| 640 | if (reader->node == NULL) |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 641 | goto node_end; |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 642 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 643 | if (oldstate != XML_TEXTREADER_BACKTRACK) { |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 644 | if ((reader->node->children != NULL) && |
| 645 | (reader->node->type != XML_ENTITY_REF_NODE) && |
| 646 | (reader->node->type != XML_DTD_NODE)) { |
| 647 | reader->node = reader->node->children; |
| 648 | reader->depth++; |
Daniel Veillard | df512f4 | 2002-12-23 15:56:21 +0000 | [diff] [blame] | 649 | reader->state = XML_TEXTREADER_ELEMENT; |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 650 | goto node_found; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 651 | } |
| 652 | } |
| 653 | if (reader->node->next != NULL) { |
| 654 | if ((oldstate == XML_TEXTREADER_ELEMENT) && |
Daniel Veillard | df512f4 | 2002-12-23 15:56:21 +0000 | [diff] [blame] | 655 | (reader->node->type == XML_ELEMENT_NODE) && |
| 656 | (wasempty == 0)) { |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 657 | reader->state = XML_TEXTREADER_END; |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 658 | goto node_found; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 659 | } |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 660 | if ((reader->ctxt->validate) && |
| 661 | (reader->node->type == XML_ELEMENT_NODE)) |
| 662 | xmlTextReaderValidatePop(reader); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 663 | reader->node = reader->node->next; |
| 664 | reader->state = XML_TEXTREADER_ELEMENT; |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 665 | |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 666 | /* |
| 667 | * Cleanup of the old node |
| 668 | */ |
| 669 | if (oldnode->type != XML_DTD_NODE) { |
| 670 | xmlUnlinkNode(oldnode); |
| 671 | xmlFreeNode(oldnode); |
| 672 | } |
| 673 | |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 674 | goto node_found; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 675 | } |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 676 | if ((oldstate == XML_TEXTREADER_ELEMENT) && |
Daniel Veillard | 571b889 | 2002-12-30 12:37:59 +0000 | [diff] [blame] | 677 | (reader->node->type == XML_ELEMENT_NODE) && |
| 678 | (wasempty == 0)) { |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 679 | reader->state = XML_TEXTREADER_END; |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 680 | goto node_found; |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 681 | } |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 682 | if ((reader->ctxt->validate) && (reader->node->type == XML_ELEMENT_NODE)) |
| 683 | xmlTextReaderValidatePop(reader); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 684 | reader->node = reader->node->parent; |
| 685 | if ((reader->node == NULL) || |
| 686 | (reader->node->type == XML_DOCUMENT_NODE) || |
| 687 | #ifdef LIBXML_DOCB_ENABLED |
| 688 | (reader->node->type == XML_DOCB_DOCUMENT_NODE) || |
| 689 | #endif |
| 690 | (reader->node->type == XML_HTML_DOCUMENT_NODE)) { |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 691 | if (reader->mode != XML_TEXTREADER_DONE) { |
| 692 | val = xmlParseChunk(reader->ctxt, "", 0, 1); |
| 693 | reader->mode = XML_TEXTREADER_DONE; |
| 694 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 695 | reader->node = NULL; |
Daniel Veillard | 4d8db8a | 2002-12-30 18:40:42 +0000 | [diff] [blame] | 696 | reader->depth = -1; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 697 | |
| 698 | /* |
| 699 | * Cleanup of the old node |
| 700 | */ |
| 701 | if (oldnode->type != XML_DTD_NODE) { |
| 702 | xmlUnlinkNode(oldnode); |
| 703 | xmlFreeNode(oldnode); |
| 704 | } |
| 705 | |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 706 | goto node_end; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 707 | } |
| 708 | reader->depth--; |
| 709 | reader->state = XML_TEXTREADER_BACKTRACK; |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 710 | |
| 711 | node_found: |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 712 | DUMP_READER |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 713 | |
| 714 | /* |
Daniel Veillard | a80ff6e | 2003-01-03 12:52:08 +0000 | [diff] [blame] | 715 | * Handle entities enter and exit when in entity replacement mode |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 716 | */ |
| 717 | if ((reader->node != NULL) && |
| 718 | (reader->node->type == XML_ENTITY_REF_NODE) && |
| 719 | (reader->ctxt != NULL) && (reader->ctxt->replaceEntities == 1)) { |
| 720 | /* |
| 721 | * Case where the underlying tree is not availble, lookup the entity |
| 722 | * and walk it. |
| 723 | */ |
| 724 | if ((reader->node->children == NULL) && (reader->ctxt->sax != NULL) && |
| 725 | (reader->ctxt->sax->getEntity != NULL)) { |
| 726 | reader->node->children = (xmlNodePtr) |
| 727 | reader->ctxt->sax->getEntity(reader->ctxt, reader->node->name); |
| 728 | } |
| 729 | |
| 730 | if ((reader->node->children != NULL) && |
| 731 | (reader->node->children->type == XML_ENTITY_DECL) && |
| 732 | (reader->node->children->children != NULL)) { |
| 733 | xmlTextReaderEntPush(reader, reader->node); |
| 734 | reader->node = reader->node->children->children; |
| 735 | } |
Daniel Veillard | a80ff6e | 2003-01-03 12:52:08 +0000 | [diff] [blame] | 736 | } else if ((reader->node != NULL) && |
| 737 | (reader->node->type == XML_ENTITY_REF_NODE) && |
| 738 | (reader->ctxt != NULL) && (reader->ctxt->validate == 1)) { |
| 739 | xmlTextReaderValidateEntity(reader); |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 740 | } |
| 741 | if ((reader->node != NULL) && |
| 742 | (reader->node->type == XML_ENTITY_DECL) && |
| 743 | (reader->ent != NULL) && (reader->ent->children == reader->node)) { |
| 744 | reader->node = xmlTextReaderEntPop(reader); |
| 745 | reader->depth++; |
| 746 | goto get_next_node; |
| 747 | } |
| 748 | if ((reader->ctxt->validate) && (reader->node != NULL)) { |
| 749 | xmlNodePtr node = reader->node; |
| 750 | xmlParserCtxtPtr ctxt = reader->ctxt; |
| 751 | |
| 752 | if ((node->type == XML_ELEMENT_NODE) && |
| 753 | ((reader->state != XML_TEXTREADER_END) && |
| 754 | (reader->state != XML_TEXTREADER_BACKTRACK))) { |
| 755 | xmlTextReaderValidatePush(reader); |
| 756 | } else if ((node->type == XML_TEXT_NODE) || |
| 757 | (node->type == XML_CDATA_SECTION_NODE)) { |
| 758 | ctxt->valid &= xmlValidatePushCData(&ctxt->vctxt, |
| 759 | node->content, xmlStrlen(node->content)); |
| 760 | } |
| 761 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 762 | return(1); |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 763 | node_end: |
| 764 | return(0); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 765 | } |
| 766 | |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 767 | /** |
| 768 | * xmlTextReaderReadState: |
| 769 | * @reader: the xmlTextReaderPtr used |
| 770 | * |
| 771 | * Gets the read state of the reader. |
| 772 | * |
| 773 | * Returns the state value, or -1 in case of error |
| 774 | */ |
| 775 | int |
| 776 | xmlTextReaderReadState(xmlTextReaderPtr reader) { |
| 777 | if (reader == NULL) |
| 778 | return(-1); |
| 779 | return(reader->mode); |
| 780 | } |
| 781 | |
| 782 | /** |
| 783 | * xmlTextReaderReadInnerXml: |
| 784 | * @reader: the xmlTextReaderPtr used |
| 785 | * |
| 786 | * Reads the contents of the current node, including child nodes and markup. |
| 787 | * |
| 788 | * Returns a string containing the XML content, or NULL if the current node |
| 789 | * is neither an element nor attribute, or has no child nodes. The |
| 790 | * string must be deallocated by the caller. |
| 791 | */ |
| 792 | xmlChar * |
| 793 | xmlTextReaderReadInnerXml(xmlTextReaderPtr reader) { |
| 794 | TODO |
| 795 | return(NULL); |
| 796 | } |
| 797 | |
| 798 | /** |
| 799 | * xmlTextReaderReadOuterXml: |
| 800 | * @reader: the xmlTextReaderPtr used |
| 801 | * |
| 802 | * Reads the contents of the current node, including child nodes and markup. |
| 803 | * |
| 804 | * Returns a string containing the XML content, or NULL if the current node |
| 805 | * is neither an element nor attribute, or has no child nodes. The |
| 806 | * string must be deallocated by the caller. |
| 807 | */ |
| 808 | xmlChar * |
| 809 | xmlTextReaderReadOuterXml(xmlTextReaderPtr reader) { |
| 810 | TODO |
| 811 | return(NULL); |
| 812 | } |
| 813 | |
| 814 | /** |
| 815 | * xmlTextReaderReadString: |
| 816 | * @reader: the xmlTextReaderPtr used |
| 817 | * |
| 818 | * Reads the contents of an element or a text node as a string. |
| 819 | * |
| 820 | * Returns a string containing the contents of the Element or Text node, |
| 821 | * or NULL if the reader is positioned on any other type of node. |
| 822 | * The string must be deallocated by the caller. |
| 823 | */ |
| 824 | xmlChar * |
| 825 | xmlTextReaderReadString(xmlTextReaderPtr reader) { |
| 826 | TODO |
| 827 | return(NULL); |
| 828 | } |
| 829 | |
Daniel Veillard | beb70bd | 2002-12-18 14:53:54 +0000 | [diff] [blame] | 830 | /** |
| 831 | * xmlTextReaderReadBase64: |
| 832 | * @reader: the xmlTextReaderPtr used |
| 833 | * @array: a byte array to store the content. |
| 834 | * @offset: the zero-based index into array where the method should |
| 835 | * begin to write. |
| 836 | * @len: the number of bytes to write. |
| 837 | * |
| 838 | * Reads and decodes the Base64 encoded contents of an element and |
| 839 | * stores the result in a byte buffer. |
| 840 | * |
| 841 | * Returns the number of bytes written to array, or zero if the current |
| 842 | * instance is not positioned on an element or -1 in case of error. |
| 843 | */ |
| 844 | int |
| 845 | xmlTextReaderReadBase64(xmlTextReaderPtr reader, unsigned char *array, |
| 846 | int offset, int len) { |
| 847 | if ((reader == NULL) || (reader->ctxt == NULL)) |
| 848 | return(-1); |
| 849 | if (reader->ctxt->wellFormed != 1) |
| 850 | return(-1); |
| 851 | |
| 852 | if ((reader->node == NULL) || (reader->node->type == XML_ELEMENT_NODE)) |
| 853 | return(0); |
| 854 | TODO |
| 855 | return(0); |
| 856 | } |
| 857 | |
| 858 | /** |
| 859 | * xmlTextReaderReadBinHex: |
| 860 | * @reader: the xmlTextReaderPtr used |
| 861 | * @array: a byte array to store the content. |
| 862 | * @offset: the zero-based index into array where the method should |
| 863 | * begin to write. |
| 864 | * @len: the number of bytes to write. |
| 865 | * |
| 866 | * Reads and decodes the BinHex encoded contents of an element and |
| 867 | * stores the result in a byte buffer. |
| 868 | * |
| 869 | * Returns the number of bytes written to array, or zero if the current |
| 870 | * instance is not positioned on an element or -1 in case of error. |
| 871 | */ |
| 872 | int |
| 873 | xmlTextReaderReadBinHex(xmlTextReaderPtr reader, unsigned char *array, |
| 874 | int offset, int len) { |
| 875 | if ((reader == NULL) || (reader->ctxt == NULL)) |
| 876 | return(-1); |
| 877 | if (reader->ctxt->wellFormed != 1) |
| 878 | return(-1); |
| 879 | |
| 880 | if ((reader->node == NULL) || (reader->node->type == XML_ELEMENT_NODE)) |
| 881 | return(0); |
| 882 | TODO |
| 883 | return(0); |
| 884 | } |
| 885 | |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 886 | /************************************************************************ |
| 887 | * * |
| 888 | * Constructor and destructors * |
| 889 | * * |
| 890 | ************************************************************************/ |
| 891 | /** |
| 892 | * xmlNewTextReader: |
| 893 | * @input: the xmlParserInputBufferPtr used to read data |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 894 | * @URI: the URI information for the source if available |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 895 | * |
| 896 | * Create an xmlTextReader structure fed with @input |
| 897 | * |
| 898 | * Returns the new xmlTextReaderPtr or NULL in case of error |
| 899 | */ |
| 900 | xmlTextReaderPtr |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 901 | xmlNewTextReader(xmlParserInputBufferPtr input, const char *URI) { |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 902 | xmlTextReaderPtr ret; |
| 903 | int val; |
| 904 | |
| 905 | if (input == NULL) |
| 906 | return(NULL); |
| 907 | ret = xmlMalloc(sizeof(xmlTextReader)); |
| 908 | if (ret == NULL) { |
| 909 | xmlGenericError(xmlGenericErrorContext, |
| 910 | "xmlNewTextReader : malloc failed\n"); |
| 911 | return(NULL); |
| 912 | } |
| 913 | memset(ret, 0, sizeof(xmlTextReader)); |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 914 | ret->entTab = NULL; |
| 915 | ret->entMax = 0; |
| 916 | ret->entNr = 0; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 917 | ret->input = input; |
| 918 | ret->sax = (xmlSAXHandler *) xmlMalloc(sizeof(xmlSAXHandler)); |
| 919 | if (ret->sax == NULL) { |
| 920 | xmlFree(ret); |
| 921 | xmlGenericError(xmlGenericErrorContext, |
| 922 | "xmlNewTextReader : malloc failed\n"); |
| 923 | return(NULL); |
| 924 | } |
| 925 | memcpy(ret->sax, &xmlDefaultSAXHandler, sizeof(xmlSAXHandler)); |
| 926 | ret->startElement = ret->sax->startElement; |
| 927 | ret->sax->startElement = xmlTextReaderStartElement; |
| 928 | ret->endElement = ret->sax->endElement; |
| 929 | ret->sax->endElement = xmlTextReaderEndElement; |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 930 | ret->characters = ret->sax->characters; |
| 931 | ret->sax->characters = xmlTextReaderCharacters; |
| 932 | ret->cdataBlock = ret->sax->cdataBlock; |
| 933 | ret->sax->cdataBlock = xmlTextReaderCDataBlock; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 934 | |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 935 | ret->mode = XML_TEXTREADER_MODE_INITIAL; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 936 | ret->node = NULL; |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 937 | ret->curnode = NULL; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 938 | val = xmlParserInputBufferRead(input, 4); |
| 939 | if (val >= 4) { |
| 940 | ret->ctxt = xmlCreatePushParserCtxt(ret->sax, NULL, |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 941 | (const char *) ret->input->buffer->content, 4, URI); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 942 | ret->base = 0; |
| 943 | ret->cur = 4; |
| 944 | } else { |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 945 | ret->ctxt = xmlCreatePushParserCtxt(ret->sax, NULL, NULL, 0, URI); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 946 | ret->base = 0; |
| 947 | ret->cur = 0; |
| 948 | } |
| 949 | ret->ctxt->_private = ret; |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 950 | ret->ctxt->linenumbers = 1; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 951 | ret->allocs = XML_TEXTREADER_CTXT; |
| 952 | return(ret); |
| 953 | |
| 954 | } |
| 955 | |
| 956 | /** |
| 957 | * xmlNewTextReaderFilename: |
| 958 | * @URI: the URI of the resource to process |
| 959 | * |
| 960 | * Create an xmlTextReader structure fed with the resource at @URI |
| 961 | * |
| 962 | * Returns the new xmlTextReaderPtr or NULL in case of error |
| 963 | */ |
| 964 | xmlTextReaderPtr |
| 965 | xmlNewTextReaderFilename(const char *URI) { |
| 966 | xmlParserInputBufferPtr input; |
| 967 | xmlTextReaderPtr ret; |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 968 | char *directory = NULL; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 969 | |
| 970 | input = xmlParserInputBufferCreateFilename(URI, XML_CHAR_ENCODING_NONE); |
| 971 | if (input == NULL) |
| 972 | return(NULL); |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 973 | ret = xmlNewTextReader(input, URI); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 974 | if (ret == NULL) { |
| 975 | xmlFreeParserInputBuffer(input); |
| 976 | return(NULL); |
| 977 | } |
| 978 | ret->allocs |= XML_TEXTREADER_INPUT; |
Daniel Veillard | ea7751d | 2002-12-20 00:16:24 +0000 | [diff] [blame] | 979 | if (ret->ctxt->directory == NULL) |
| 980 | directory = xmlParserGetDirectory(URI); |
| 981 | if ((ret->ctxt->directory == NULL) && (directory != NULL)) |
| 982 | ret->ctxt->directory = (char *) xmlStrdup((xmlChar *) directory); |
| 983 | if (directory != NULL) |
| 984 | xmlFree(directory); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 985 | return(ret); |
| 986 | } |
| 987 | |
| 988 | /** |
| 989 | * xmlFreeTextReader: |
| 990 | * @reader: the xmlTextReaderPtr |
| 991 | * |
| 992 | * Deallocate all the resources associated to the reader |
| 993 | */ |
| 994 | void |
| 995 | xmlFreeTextReader(xmlTextReaderPtr reader) { |
| 996 | if (reader == NULL) |
| 997 | return; |
| 998 | if (reader->ctxt != NULL) { |
| 999 | if (reader->ctxt->myDoc != NULL) { |
| 1000 | xmlFreeDoc(reader->ctxt->myDoc); |
| 1001 | reader->ctxt->myDoc = NULL; |
| 1002 | } |
Daniel Veillard | 336fc7d | 2002-12-27 19:37:04 +0000 | [diff] [blame] | 1003 | if ((reader->ctxt->vctxt.vstateTab != NULL) && |
| 1004 | (reader->ctxt->vctxt.vstateMax > 0)){ |
| 1005 | xmlFree(reader->ctxt->vctxt.vstateTab); |
| 1006 | reader->ctxt->vctxt.vstateTab = 0; |
| 1007 | reader->ctxt->vctxt.vstateMax = 0; |
| 1008 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1009 | if (reader->allocs & XML_TEXTREADER_CTXT) |
| 1010 | xmlFreeParserCtxt(reader->ctxt); |
| 1011 | } |
| 1012 | if (reader->sax != NULL) |
| 1013 | xmlFree(reader->sax); |
| 1014 | if ((reader->input != NULL) && (reader->allocs & XML_TEXTREADER_INPUT)) |
| 1015 | xmlFreeParserInputBuffer(reader->input); |
Daniel Veillard | beb70bd | 2002-12-18 14:53:54 +0000 | [diff] [blame] | 1016 | if (reader->faketext != NULL) { |
| 1017 | xmlFreeNode(reader->faketext); |
| 1018 | } |
Daniel Veillard | 1fdfd11 | 2003-01-03 01:18:43 +0000 | [diff] [blame] | 1019 | if (reader->entTab != NULL) |
| 1020 | xmlFree(reader->entTab); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1021 | xmlFree(reader); |
| 1022 | } |
| 1023 | |
| 1024 | /************************************************************************ |
| 1025 | * * |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 1026 | * Methods for XmlTextReader * |
| 1027 | * * |
| 1028 | ************************************************************************/ |
| 1029 | /** |
| 1030 | * xmlTextReaderClose: |
| 1031 | * @reader: the xmlTextReaderPtr used |
| 1032 | * |
| 1033 | * This method releases any resources allocated by the current instance |
| 1034 | * changes the state to Closed and close any underlying input. |
| 1035 | * |
| 1036 | * Returns 0 or -1 in case of error |
| 1037 | */ |
| 1038 | int |
| 1039 | xmlTextReaderClose(xmlTextReaderPtr reader) { |
| 1040 | if (reader == NULL) |
| 1041 | return(-1); |
| 1042 | reader->node = NULL; |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1043 | reader->curnode = NULL; |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 1044 | reader->mode = XML_TEXTREADER_MODE_CLOSED; |
| 1045 | if (reader->ctxt != NULL) { |
| 1046 | if (reader->ctxt->myDoc != NULL) { |
| 1047 | xmlFreeDoc(reader->ctxt->myDoc); |
| 1048 | reader->ctxt->myDoc = NULL; |
| 1049 | } |
| 1050 | if (reader->allocs & XML_TEXTREADER_CTXT) { |
| 1051 | xmlFreeParserCtxt(reader->ctxt); |
| 1052 | reader->allocs -= XML_TEXTREADER_CTXT; |
| 1053 | } |
| 1054 | } |
| 1055 | if (reader->sax != NULL) { |
| 1056 | xmlFree(reader->sax); |
| 1057 | reader->sax = NULL; |
| 1058 | } |
| 1059 | if ((reader->input != NULL) && (reader->allocs & XML_TEXTREADER_INPUT)) { |
| 1060 | xmlFreeParserInputBuffer(reader->input); |
| 1061 | reader->allocs -= XML_TEXTREADER_INPUT; |
| 1062 | } |
| 1063 | return(0); |
| 1064 | } |
| 1065 | |
| 1066 | /** |
| 1067 | * xmlTextReaderGetAttributeNo: |
| 1068 | * @reader: the xmlTextReaderPtr used |
| 1069 | * @no: the zero-based index of the attribute relative to the containing element |
| 1070 | * |
| 1071 | * Provides the value of the attribute with the specified index relative |
| 1072 | * to the containing element. |
| 1073 | * |
| 1074 | * Returns a string containing the value of the specified attribute, or NULL |
| 1075 | * in case of error. The string must be deallocated by the caller. |
| 1076 | */ |
| 1077 | xmlChar * |
| 1078 | xmlTextReaderGetAttributeNo(xmlTextReaderPtr reader, int no) { |
| 1079 | xmlChar *ret; |
| 1080 | int i; |
| 1081 | xmlAttrPtr cur; |
| 1082 | xmlNsPtr ns; |
| 1083 | |
| 1084 | if (reader == NULL) |
| 1085 | return(NULL); |
| 1086 | if (reader->node == NULL) |
| 1087 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1088 | if (reader->curnode != NULL) |
| 1089 | return(NULL); |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 1090 | /* TODO: handle the xmlDecl */ |
| 1091 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1092 | return(NULL); |
| 1093 | |
| 1094 | ns = reader->node->nsDef; |
| 1095 | for (i = 0;(i < no) && (ns != NULL);i++) { |
| 1096 | ns = ns->next; |
| 1097 | } |
| 1098 | if (ns != NULL) |
| 1099 | return(xmlStrdup(ns->href)); |
| 1100 | |
| 1101 | cur = reader->node->properties; |
| 1102 | if (cur == NULL) |
| 1103 | return(NULL); |
| 1104 | for (;i < no;i++) { |
| 1105 | cur = cur->next; |
| 1106 | if (cur == NULL) |
| 1107 | return(NULL); |
| 1108 | } |
| 1109 | /* TODO walk the DTD if present */ |
| 1110 | |
| 1111 | ret = xmlNodeListGetString(reader->node->doc, cur->children, 1); |
| 1112 | if (ret == NULL) return(xmlStrdup((xmlChar *)"")); |
| 1113 | return(ret); |
| 1114 | } |
| 1115 | |
| 1116 | /** |
| 1117 | * xmlTextReaderGetAttribute: |
| 1118 | * @reader: the xmlTextReaderPtr used |
| 1119 | * @name: the qualified name of the attribute. |
| 1120 | * |
| 1121 | * Provides the value of the attribute with the specified qualified name. |
| 1122 | * |
| 1123 | * Returns a string containing the value of the specified attribute, or NULL |
| 1124 | * in case of error. The string must be deallocated by the caller. |
| 1125 | */ |
| 1126 | xmlChar * |
| 1127 | xmlTextReaderGetAttribute(xmlTextReaderPtr reader, const xmlChar *name) { |
| 1128 | xmlChar *prefix = NULL; |
| 1129 | xmlChar *localname; |
| 1130 | xmlNsPtr ns; |
| 1131 | xmlChar *ret = NULL; |
| 1132 | |
| 1133 | if ((reader == NULL) || (name == NULL)) |
| 1134 | return(NULL); |
| 1135 | if (reader->node == NULL) |
| 1136 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1137 | if (reader->curnode != NULL) |
| 1138 | return(NULL); |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 1139 | |
| 1140 | /* TODO: handle the xmlDecl */ |
| 1141 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1142 | return(NULL); |
| 1143 | |
| 1144 | localname = xmlSplitQName2(name, &prefix); |
| 1145 | if (localname == NULL) |
| 1146 | return(xmlGetProp(reader->node, name)); |
| 1147 | |
| 1148 | ns = xmlSearchNs(reader->node->doc, reader->node, prefix); |
| 1149 | if (ns != NULL) |
| 1150 | ret = xmlGetNsProp(reader->node, localname, ns->href); |
| 1151 | |
| 1152 | if (localname != NULL) |
| 1153 | xmlFree(localname); |
| 1154 | if (prefix != NULL) |
| 1155 | xmlFree(prefix); |
| 1156 | return(ret); |
| 1157 | } |
| 1158 | |
| 1159 | |
| 1160 | /** |
| 1161 | * xmlTextReaderGetAttributeNs: |
| 1162 | * @reader: the xmlTextReaderPtr used |
| 1163 | * @localName: the local name of the attribute. |
| 1164 | * @namespaceURI: the namespace URI of the attribute. |
| 1165 | * |
| 1166 | * Provides the value of the specified attribute |
| 1167 | * |
| 1168 | * Returns a string containing the value of the specified attribute, or NULL |
| 1169 | * in case of error. The string must be deallocated by the caller. |
| 1170 | */ |
| 1171 | xmlChar * |
| 1172 | xmlTextReaderGetAttributeNs(xmlTextReaderPtr reader, const xmlChar *localName, |
| 1173 | const xmlChar *namespaceURI) { |
| 1174 | if ((reader == NULL) || (localName == NULL)) |
| 1175 | return(NULL); |
| 1176 | if (reader->node == NULL) |
| 1177 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1178 | if (reader->curnode != NULL) |
| 1179 | return(NULL); |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 1180 | |
| 1181 | /* TODO: handle the xmlDecl */ |
| 1182 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1183 | return(NULL); |
| 1184 | |
| 1185 | return(xmlGetNsProp(reader->node, localName, namespaceURI)); |
| 1186 | } |
| 1187 | |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1188 | /** |
| 1189 | * xmlTextReaderGetRemainder: |
| 1190 | * @reader: the xmlTextReaderPtr used |
| 1191 | * |
| 1192 | * Method to get the remainder of the buffered XML. this method stops the |
| 1193 | * parser, set its state to End Of File and return the input stream with |
| 1194 | * what is left that the parser did not use. |
| 1195 | * |
| 1196 | * Returns the xmlParserInputBufferPtr attached to the XML or NULL |
| 1197 | * in case of error. |
| 1198 | */ |
| 1199 | xmlParserInputBufferPtr |
| 1200 | xmlTextReaderGetRemainder(xmlTextReaderPtr reader) { |
| 1201 | xmlParserInputBufferPtr ret = NULL; |
| 1202 | |
| 1203 | if (reader == NULL) |
| 1204 | return(NULL); |
| 1205 | if (reader->node == NULL) |
| 1206 | return(NULL); |
| 1207 | |
| 1208 | reader->node = NULL; |
| 1209 | reader->curnode = NULL; |
| 1210 | reader->mode = XML_TEXTREADER_MODE_EOF; |
| 1211 | if (reader->ctxt != NULL) { |
| 1212 | if (reader->ctxt->myDoc != NULL) { |
| 1213 | xmlFreeDoc(reader->ctxt->myDoc); |
| 1214 | reader->ctxt->myDoc = NULL; |
| 1215 | } |
| 1216 | if (reader->allocs & XML_TEXTREADER_CTXT) { |
| 1217 | xmlFreeParserCtxt(reader->ctxt); |
| 1218 | reader->allocs -= XML_TEXTREADER_CTXT; |
| 1219 | } |
| 1220 | } |
| 1221 | if (reader->sax != NULL) { |
| 1222 | xmlFree(reader->sax); |
| 1223 | reader->sax = NULL; |
| 1224 | } |
| 1225 | if (reader->allocs & XML_TEXTREADER_INPUT) { |
| 1226 | ret = reader->input; |
| 1227 | reader->allocs -= XML_TEXTREADER_INPUT; |
| 1228 | } else { |
| 1229 | /* |
| 1230 | * Hum, one may need to duplicate the data structure because |
| 1231 | * without reference counting the input may be freed twice: |
| 1232 | * - by the layer which allocated it. |
| 1233 | * - by the layer to which would have been returned to. |
| 1234 | */ |
| 1235 | TODO |
| 1236 | return(NULL); |
| 1237 | } |
| 1238 | return(ret); |
| 1239 | } |
| 1240 | |
| 1241 | /** |
| 1242 | * xmlTextReaderLookupNamespace: |
| 1243 | * @reader: the xmlTextReaderPtr used |
| 1244 | * @prefix: the prefix whose namespace URI is to be resolved. To return |
| 1245 | * the default namespace, specify NULL |
| 1246 | * |
| 1247 | * Resolves a namespace prefix in the scope of the current element. |
| 1248 | * |
| 1249 | * Returns a string containing the namespace URI to which the prefix maps |
| 1250 | * or NULL in case of error. The string must be deallocated by the caller. |
| 1251 | */ |
| 1252 | xmlChar * |
| 1253 | xmlTextReaderLookupNamespace(xmlTextReaderPtr reader, const xmlChar *prefix) { |
| 1254 | xmlNsPtr ns; |
| 1255 | |
| 1256 | if (reader == NULL) |
| 1257 | return(NULL); |
| 1258 | if (reader->node == NULL) |
| 1259 | return(NULL); |
| 1260 | |
| 1261 | ns = xmlSearchNs(reader->node->doc, reader->node, prefix); |
| 1262 | if (ns == NULL) |
| 1263 | return(NULL); |
| 1264 | return(xmlStrdup(ns->href)); |
| 1265 | } |
| 1266 | |
| 1267 | /** |
| 1268 | * xmlTextReaderMoveToAttributeNo: |
| 1269 | * @reader: the xmlTextReaderPtr used |
| 1270 | * @no: the zero-based index of the attribute relative to the containing |
| 1271 | * element. |
| 1272 | * |
| 1273 | * Moves the position of the current instance to the attribute with |
| 1274 | * the specified index relative to the containing element. |
| 1275 | * |
| 1276 | * Returns 1 in case of success, -1 in case of error, 0 if not found |
| 1277 | */ |
| 1278 | int |
| 1279 | xmlTextReaderMoveToAttributeNo(xmlTextReaderPtr reader, int no) { |
| 1280 | int i; |
| 1281 | xmlAttrPtr cur; |
| 1282 | xmlNsPtr ns; |
| 1283 | |
| 1284 | if (reader == NULL) |
| 1285 | return(-1); |
| 1286 | if (reader->node == NULL) |
| 1287 | return(-1); |
| 1288 | /* TODO: handle the xmlDecl */ |
| 1289 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1290 | return(-1); |
| 1291 | |
| 1292 | reader->curnode = NULL; |
| 1293 | |
| 1294 | ns = reader->node->nsDef; |
| 1295 | for (i = 0;(i < no) && (ns != NULL);i++) { |
| 1296 | ns = ns->next; |
| 1297 | } |
| 1298 | if (ns != NULL) { |
| 1299 | reader->curnode = (xmlNodePtr) ns; |
| 1300 | return(1); |
| 1301 | } |
| 1302 | |
| 1303 | cur = reader->node->properties; |
| 1304 | if (cur == NULL) |
| 1305 | return(0); |
| 1306 | for (;i < no;i++) { |
| 1307 | cur = cur->next; |
| 1308 | if (cur == NULL) |
| 1309 | return(0); |
| 1310 | } |
| 1311 | /* TODO walk the DTD if present */ |
| 1312 | |
| 1313 | reader->curnode = (xmlNodePtr) cur; |
| 1314 | return(1); |
| 1315 | } |
| 1316 | |
| 1317 | /** |
| 1318 | * xmlTextReaderMoveToAttribute: |
| 1319 | * @reader: the xmlTextReaderPtr used |
| 1320 | * @name: the qualified name of the attribute. |
| 1321 | * |
| 1322 | * Moves the position of the current instance to the attribute with |
| 1323 | * the specified qualified name. |
| 1324 | * |
| 1325 | * Returns 1 in case of success, -1 in case of error, 0 if not found |
| 1326 | */ |
| 1327 | int |
| 1328 | xmlTextReaderMoveToAttribute(xmlTextReaderPtr reader, const xmlChar *name) { |
| 1329 | xmlChar *prefix = NULL; |
| 1330 | xmlChar *localname; |
| 1331 | xmlNsPtr ns; |
| 1332 | xmlAttrPtr prop; |
| 1333 | |
| 1334 | if ((reader == NULL) || (name == NULL)) |
| 1335 | return(-1); |
| 1336 | if (reader->node == NULL) |
| 1337 | return(-1); |
| 1338 | |
| 1339 | /* TODO: handle the xmlDecl */ |
| 1340 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1341 | return(0); |
| 1342 | |
| 1343 | localname = xmlSplitQName2(name, &prefix); |
| 1344 | if (localname == NULL) { |
| 1345 | /* |
| 1346 | * Namespace default decl |
| 1347 | */ |
| 1348 | if (xmlStrEqual(name, BAD_CAST "xmlns")) { |
| 1349 | ns = reader->node->nsDef; |
| 1350 | while (ns != NULL) { |
| 1351 | if (ns->prefix == NULL) { |
| 1352 | reader->curnode = (xmlNodePtr) ns; |
| 1353 | return(1); |
| 1354 | } |
| 1355 | ns = ns->next; |
| 1356 | } |
| 1357 | return(0); |
| 1358 | } |
| 1359 | |
| 1360 | prop = reader->node->properties; |
| 1361 | while (prop != NULL) { |
| 1362 | /* |
| 1363 | * One need to have |
| 1364 | * - same attribute names |
| 1365 | * - and the attribute carrying that namespace |
| 1366 | */ |
| 1367 | if ((xmlStrEqual(prop->name, name)) && |
| 1368 | ((prop->ns == NULL) || (prop->ns->prefix == NULL))) { |
| 1369 | reader->curnode = (xmlNodePtr) prop; |
| 1370 | return(1); |
| 1371 | } |
| 1372 | prop = prop->next; |
| 1373 | } |
| 1374 | return(0); |
| 1375 | } |
| 1376 | |
| 1377 | /* |
| 1378 | * Namespace default decl |
| 1379 | */ |
| 1380 | if (xmlStrEqual(prefix, BAD_CAST "xmlns")) { |
| 1381 | ns = reader->node->nsDef; |
| 1382 | while (ns != NULL) { |
| 1383 | if ((ns->prefix != NULL) && (xmlStrEqual(ns->prefix, localname))) { |
| 1384 | reader->curnode = (xmlNodePtr) ns; |
| 1385 | goto found; |
| 1386 | } |
| 1387 | ns = ns->next; |
| 1388 | } |
| 1389 | goto not_found; |
| 1390 | } |
| 1391 | prop = reader->node->properties; |
| 1392 | while (prop != NULL) { |
| 1393 | /* |
| 1394 | * One need to have |
| 1395 | * - same attribute names |
| 1396 | * - and the attribute carrying that namespace |
| 1397 | */ |
| 1398 | if ((xmlStrEqual(prop->name, localname)) && |
| 1399 | (prop->ns != NULL) && (xmlStrEqual(prop->ns->prefix, prefix))) { |
| 1400 | reader->curnode = (xmlNodePtr) prop; |
| 1401 | goto found; |
| 1402 | } |
| 1403 | prop = prop->next; |
| 1404 | } |
| 1405 | not_found: |
| 1406 | if (localname != NULL) |
| 1407 | xmlFree(localname); |
| 1408 | if (prefix != NULL) |
| 1409 | xmlFree(prefix); |
| 1410 | return(0); |
| 1411 | |
| 1412 | found: |
| 1413 | if (localname != NULL) |
| 1414 | xmlFree(localname); |
| 1415 | if (prefix != NULL) |
| 1416 | xmlFree(prefix); |
| 1417 | return(1); |
| 1418 | } |
| 1419 | |
| 1420 | /** |
| 1421 | * xmlTextReaderMoveToAttributeNs: |
| 1422 | * @reader: the xmlTextReaderPtr used |
| 1423 | * @localName: the local name of the attribute. |
| 1424 | * @namespaceURI: the namespace URI of the attribute. |
| 1425 | * |
| 1426 | * Moves the position of the current instance to the attribute with the |
| 1427 | * specified local name and namespace URI. |
| 1428 | * |
| 1429 | * Returns 1 in case of success, -1 in case of error, 0 if not found |
| 1430 | */ |
| 1431 | int |
| 1432 | xmlTextReaderMoveToAttributeNs(xmlTextReaderPtr reader, |
| 1433 | const xmlChar *localName, const xmlChar *namespaceURI) { |
| 1434 | xmlAttrPtr prop; |
| 1435 | xmlNodePtr node; |
| 1436 | |
| 1437 | if ((reader == NULL) || (localName == NULL) || (namespaceURI == NULL)) |
| 1438 | return(-1); |
| 1439 | if (reader->node == NULL) |
| 1440 | return(-1); |
| 1441 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1442 | return(0); |
| 1443 | node = reader->node; |
| 1444 | |
| 1445 | /* |
| 1446 | * A priori reading http://www.w3.org/TR/REC-xml-names/ there is no |
| 1447 | * namespace name associated to "xmlns" |
| 1448 | */ |
| 1449 | prop = node->properties; |
| 1450 | while (prop != NULL) { |
| 1451 | /* |
| 1452 | * One need to have |
| 1453 | * - same attribute names |
| 1454 | * - and the attribute carrying that namespace |
| 1455 | */ |
| 1456 | if (xmlStrEqual(prop->name, localName) && |
| 1457 | ((prop->ns != NULL) && |
| 1458 | (xmlStrEqual(prop->ns->href, namespaceURI)))) { |
| 1459 | reader->curnode = (xmlNodePtr) prop; |
| 1460 | return(1); |
| 1461 | } |
| 1462 | prop = prop->next; |
| 1463 | } |
| 1464 | return(0); |
| 1465 | } |
| 1466 | |
| 1467 | /** |
| 1468 | * xmlTextReaderMoveToFirstAttribute: |
| 1469 | * @reader: the xmlTextReaderPtr used |
| 1470 | * |
| 1471 | * Moves the position of the current instance to the first attribute |
| 1472 | * associated with the current node. |
| 1473 | * |
| 1474 | * Returns 1 in case of success, -1 in case of error, 0 if not found |
| 1475 | */ |
| 1476 | int |
| 1477 | xmlTextReaderMoveToFirstAttribute(xmlTextReaderPtr reader) { |
| 1478 | if (reader == NULL) |
| 1479 | return(-1); |
| 1480 | if (reader->node == NULL) |
| 1481 | return(-1); |
| 1482 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1483 | return(0); |
| 1484 | |
| 1485 | if (reader->node->nsDef != NULL) { |
| 1486 | reader->curnode = (xmlNodePtr) reader->node->nsDef; |
| 1487 | return(1); |
| 1488 | } |
| 1489 | if (reader->node->properties != NULL) { |
| 1490 | reader->curnode = (xmlNodePtr) reader->node->properties; |
| 1491 | return(1); |
| 1492 | } |
| 1493 | return(0); |
| 1494 | } |
| 1495 | |
| 1496 | /** |
| 1497 | * xmlTextReaderMoveToNextAttribute: |
| 1498 | * @reader: the xmlTextReaderPtr used |
| 1499 | * |
| 1500 | * Moves the position of the current instance to the next attribute |
| 1501 | * associated with the current node. |
| 1502 | * |
| 1503 | * Returns 1 in case of success, -1 in case of error, 0 if not found |
| 1504 | */ |
| 1505 | int |
| 1506 | xmlTextReaderMoveToNextAttribute(xmlTextReaderPtr reader) { |
| 1507 | if (reader == NULL) |
| 1508 | return(-1); |
| 1509 | if (reader->node == NULL) |
| 1510 | return(-1); |
| 1511 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1512 | return(0); |
| 1513 | if (reader->curnode == NULL) |
| 1514 | return(xmlTextReaderMoveToFirstAttribute(reader)); |
| 1515 | |
| 1516 | if (reader->curnode->type == XML_NAMESPACE_DECL) { |
| 1517 | xmlNsPtr ns = (xmlNsPtr) reader->curnode; |
| 1518 | if (ns->next != NULL) { |
| 1519 | reader->curnode = (xmlNodePtr) ns->next; |
| 1520 | return(1); |
| 1521 | } |
| 1522 | if (reader->node->properties != NULL) { |
| 1523 | reader->curnode = (xmlNodePtr) reader->node->properties; |
| 1524 | return(1); |
| 1525 | } |
| 1526 | return(0); |
| 1527 | } else if ((reader->curnode->type == XML_ATTRIBUTE_NODE) && |
| 1528 | (reader->curnode->next != NULL)) { |
| 1529 | reader->curnode = reader->curnode->next; |
| 1530 | return(1); |
| 1531 | } |
| 1532 | return(0); |
| 1533 | } |
| 1534 | |
| 1535 | /** |
| 1536 | * xmlTextReaderMoveToElement: |
| 1537 | * @reader: the xmlTextReaderPtr used |
| 1538 | * |
| 1539 | * Moves the position of the current instance to the node that |
| 1540 | * contains the current Attribute node. |
| 1541 | * |
| 1542 | * Returns 1 in case of success, -1 in case of error, 0 if not moved |
| 1543 | */ |
| 1544 | int |
| 1545 | xmlTextReaderMoveToElement(xmlTextReaderPtr reader) { |
| 1546 | if (reader == NULL) |
| 1547 | return(-1); |
| 1548 | if (reader->node == NULL) |
| 1549 | return(-1); |
| 1550 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1551 | return(0); |
| 1552 | if (reader->curnode != NULL) { |
| 1553 | reader->curnode = NULL; |
| 1554 | return(1); |
| 1555 | } |
| 1556 | return(0); |
| 1557 | } |
| 1558 | |
Daniel Veillard | beb70bd | 2002-12-18 14:53:54 +0000 | [diff] [blame] | 1559 | /** |
| 1560 | * xmlTextReaderReadAttributeValue: |
| 1561 | * @reader: the xmlTextReaderPtr used |
| 1562 | * |
| 1563 | * Parses an attribute value into one or more Text and EntityReference nodes. |
| 1564 | * |
| 1565 | * Returns 1 in case of success, 0 if the reader was not positionned on an |
| 1566 | * ttribute node or all the attribute values have been read, or -1 |
| 1567 | * in case of error. |
| 1568 | */ |
| 1569 | int |
| 1570 | xmlTextReaderReadAttributeValue(xmlTextReaderPtr reader) { |
| 1571 | if (reader == NULL) |
| 1572 | return(-1); |
| 1573 | if (reader->node == NULL) |
| 1574 | return(-1); |
| 1575 | if (reader->curnode == NULL) |
| 1576 | return(0); |
| 1577 | if (reader->curnode->type == XML_ATTRIBUTE_NODE) { |
| 1578 | if (reader->curnode->children == NULL) |
| 1579 | return(0); |
| 1580 | reader->curnode = reader->curnode->children; |
| 1581 | } else if (reader->curnode->type == XML_NAMESPACE_DECL) { |
| 1582 | xmlNsPtr ns = (xmlNsPtr) reader->curnode; |
| 1583 | |
| 1584 | if (reader->faketext == NULL) { |
| 1585 | reader->faketext = xmlNewDocText(reader->node->doc, |
| 1586 | ns->href); |
| 1587 | } else { |
| 1588 | if (reader->faketext->content != NULL) |
| 1589 | xmlFree(reader->faketext->content); |
| 1590 | reader->faketext->content = xmlStrdup(ns->href); |
| 1591 | } |
| 1592 | reader->curnode = reader->faketext; |
| 1593 | } else { |
| 1594 | if (reader->curnode->next == NULL) |
| 1595 | return(0); |
| 1596 | reader->curnode = reader->curnode->next; |
| 1597 | } |
| 1598 | return(1); |
| 1599 | } |
| 1600 | |
Daniel Veillard | 0eb38c7 | 2002-12-14 23:00:35 +0000 | [diff] [blame] | 1601 | /************************************************************************ |
| 1602 | * * |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1603 | * Acces API to the current node * |
| 1604 | * * |
| 1605 | ************************************************************************/ |
| 1606 | /** |
| 1607 | * xmlTextReaderAttributeCount: |
| 1608 | * @reader: the xmlTextReaderPtr used |
| 1609 | * |
Daniel Veillard | a9b66d0 | 2002-12-11 14:23:49 +0000 | [diff] [blame] | 1610 | * Provides the number of attributes of the current node |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1611 | * |
| 1612 | * Returns 0 i no attributes, -1 in case of error or the attribute count |
| 1613 | */ |
| 1614 | int |
| 1615 | xmlTextReaderAttributeCount(xmlTextReaderPtr reader) { |
| 1616 | int ret; |
| 1617 | xmlAttrPtr attr; |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 1618 | xmlNsPtr ns; |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1619 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1620 | |
| 1621 | if (reader == NULL) |
| 1622 | return(-1); |
| 1623 | if (reader->node == NULL) |
| 1624 | return(0); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1625 | |
| 1626 | if (reader->curnode != NULL) |
| 1627 | node = reader->curnode; |
| 1628 | else |
| 1629 | node = reader->node; |
| 1630 | |
| 1631 | if (node->type != XML_ELEMENT_NODE) |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1632 | return(0); |
| 1633 | if ((reader->state == XML_TEXTREADER_END) || |
| 1634 | (reader->state == XML_TEXTREADER_BACKTRACK)) |
| 1635 | return(0); |
| 1636 | ret = 0; |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1637 | attr = node->properties; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1638 | while (attr != NULL) { |
| 1639 | ret++; |
| 1640 | attr = attr->next; |
| 1641 | } |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 1642 | ns = node->nsDef; |
| 1643 | while (ns != NULL) { |
| 1644 | ret++; |
| 1645 | ns = ns->next; |
| 1646 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1647 | return(ret); |
| 1648 | } |
| 1649 | |
| 1650 | /** |
| 1651 | * xmlTextReaderNodeType: |
| 1652 | * @reader: the xmlTextReaderPtr used |
| 1653 | * |
| 1654 | * Get the node type of the current node |
| 1655 | * Reference: |
| 1656 | * http://dotgnu.org/pnetlib-doc/System/Xml/XmlNodeType.html |
| 1657 | * |
| 1658 | * Returns the xmlNodeType of the current node or -1 in case of error |
| 1659 | */ |
| 1660 | int |
| 1661 | xmlTextReaderNodeType(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1662 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1663 | if (reader == NULL) |
| 1664 | return(-1); |
| 1665 | if (reader->node == NULL) |
| 1666 | return(0); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1667 | if (reader->curnode != NULL) |
| 1668 | node = reader->curnode; |
| 1669 | else |
| 1670 | node = reader->node; |
| 1671 | switch (node->type) { |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1672 | case XML_ELEMENT_NODE: |
| 1673 | if ((reader->state == XML_TEXTREADER_END) || |
| 1674 | (reader->state == XML_TEXTREADER_BACKTRACK)) |
| 1675 | return(15); |
| 1676 | return(1); |
Daniel Veillard | ecaba49 | 2002-12-30 10:55:29 +0000 | [diff] [blame] | 1677 | case XML_NAMESPACE_DECL: |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1678 | case XML_ATTRIBUTE_NODE: |
| 1679 | return(2); |
| 1680 | case XML_TEXT_NODE: |
| 1681 | return(3); /* TODO: SignificantWhitespace == 14 Whitespace == 13 */ |
| 1682 | case XML_CDATA_SECTION_NODE: |
| 1683 | return(4); |
| 1684 | case XML_ENTITY_REF_NODE: |
| 1685 | return(5); |
| 1686 | case XML_ENTITY_NODE: |
| 1687 | return(6); |
| 1688 | case XML_PI_NODE: |
| 1689 | return(7); |
| 1690 | case XML_COMMENT_NODE: |
| 1691 | return(8); |
| 1692 | case XML_DOCUMENT_NODE: |
| 1693 | case XML_HTML_DOCUMENT_NODE: |
| 1694 | #ifdef LIBXML_DOCB_ENABLED |
| 1695 | case XML_DOCB_DOCUMENT_NODE: |
| 1696 | #endif |
| 1697 | return(9); |
| 1698 | case XML_DOCUMENT_FRAG_NODE: |
| 1699 | return(11); |
| 1700 | case XML_NOTATION_NODE: |
| 1701 | return(12); |
| 1702 | case XML_DOCUMENT_TYPE_NODE: |
| 1703 | case XML_DTD_NODE: |
| 1704 | return(10); |
| 1705 | |
| 1706 | case XML_ELEMENT_DECL: |
| 1707 | case XML_ATTRIBUTE_DECL: |
| 1708 | case XML_ENTITY_DECL: |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1709 | case XML_XINCLUDE_START: |
| 1710 | case XML_XINCLUDE_END: |
| 1711 | return(0); |
| 1712 | } |
| 1713 | return(-1); |
| 1714 | } |
| 1715 | |
| 1716 | /** |
Daniel Veillard | 01c13b5 | 2002-12-10 15:19:08 +0000 | [diff] [blame] | 1717 | * xmlTextReaderIsEmptyElement: |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1718 | * @reader: the xmlTextReaderPtr used |
| 1719 | * |
| 1720 | * Check if the current node is empty |
| 1721 | * |
| 1722 | * Returns 1 if empty, 0 if not and -1 in case of error |
| 1723 | */ |
| 1724 | int |
| 1725 | xmlTextReaderIsEmptyElement(xmlTextReaderPtr reader) { |
| 1726 | if ((reader == NULL) || (reader->node == NULL)) |
| 1727 | return(-1); |
Daniel Veillard | df512f4 | 2002-12-23 15:56:21 +0000 | [diff] [blame] | 1728 | if (reader->node->type != XML_ELEMENT_NODE) |
| 1729 | return(0); |
Daniel Veillard | e3c036e | 2003-01-01 15:11:05 +0000 | [diff] [blame] | 1730 | if (reader->curnode != NULL) |
| 1731 | return(0); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1732 | if (reader->node->children != NULL) |
| 1733 | return(0); |
Daniel Veillard | dab8ea9 | 2003-01-02 14:16:45 +0000 | [diff] [blame] | 1734 | if (reader->state == XML_TEXTREADER_END) |
| 1735 | return(0); |
| 1736 | if (reader->wasempty == -1) |
| 1737 | return(0); |
Daniel Veillard | df512f4 | 2002-12-23 15:56:21 +0000 | [diff] [blame] | 1738 | if (reader->node != reader->ctxt->node) |
| 1739 | return(1); |
| 1740 | if ((reader->ctxt->node != NULL) && |
| 1741 | (reader->node == reader->ctxt->node->last) && |
| 1742 | (reader->wasempty == 1)) |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1743 | return(1); |
| 1744 | return(0); |
| 1745 | } |
| 1746 | |
| 1747 | /** |
| 1748 | * xmlTextReaderLocalName: |
| 1749 | * @reader: the xmlTextReaderPtr used |
| 1750 | * |
| 1751 | * The local name of the node. |
| 1752 | * |
| 1753 | * Returns the local name or NULL if not available |
| 1754 | */ |
| 1755 | xmlChar * |
| 1756 | xmlTextReaderLocalName(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1757 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1758 | if ((reader == NULL) || (reader->node == NULL)) |
| 1759 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1760 | if (reader->curnode != NULL) |
| 1761 | node = reader->curnode; |
| 1762 | else |
| 1763 | node = reader->node; |
| 1764 | if (node->type == XML_NAMESPACE_DECL) { |
| 1765 | xmlNsPtr ns = (xmlNsPtr) node; |
| 1766 | if (ns->prefix == NULL) |
| 1767 | return(xmlStrdup(BAD_CAST "xmlns")); |
| 1768 | else |
| 1769 | return(xmlStrdup(ns->prefix)); |
| 1770 | } |
| 1771 | if ((node->type != XML_ELEMENT_NODE) && |
| 1772 | (node->type != XML_ATTRIBUTE_NODE)) |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1773 | return(xmlTextReaderName(reader)); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1774 | return(xmlStrdup(node->name)); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1775 | } |
| 1776 | |
| 1777 | /** |
| 1778 | * xmlTextReaderName: |
| 1779 | * @reader: the xmlTextReaderPtr used |
| 1780 | * |
| 1781 | * The qualified name of the node, equal to Prefix :LocalName. |
| 1782 | * |
| 1783 | * Returns the local name or NULL if not available |
| 1784 | */ |
| 1785 | xmlChar * |
| 1786 | xmlTextReaderName(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1787 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1788 | xmlChar *ret; |
| 1789 | |
| 1790 | if ((reader == NULL) || (reader->node == NULL)) |
| 1791 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1792 | if (reader->curnode != NULL) |
| 1793 | node = reader->curnode; |
| 1794 | else |
| 1795 | node = reader->node; |
| 1796 | switch (node->type) { |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1797 | case XML_ELEMENT_NODE: |
| 1798 | case XML_ATTRIBUTE_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1799 | if ((node->ns == NULL) || |
| 1800 | (node->ns->prefix == NULL)) |
| 1801 | return(xmlStrdup(node->name)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1802 | |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1803 | ret = xmlStrdup(node->ns->prefix); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1804 | ret = xmlStrcat(ret, BAD_CAST ":"); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1805 | ret = xmlStrcat(ret, node->name); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1806 | return(ret); |
| 1807 | case XML_TEXT_NODE: |
| 1808 | return(xmlStrdup(BAD_CAST "#text")); |
| 1809 | case XML_CDATA_SECTION_NODE: |
| 1810 | return(xmlStrdup(BAD_CAST "#cdata-section")); |
| 1811 | case XML_ENTITY_NODE: |
| 1812 | case XML_ENTITY_REF_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1813 | return(xmlStrdup(node->name)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1814 | case XML_PI_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1815 | return(xmlStrdup(node->name)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1816 | case XML_COMMENT_NODE: |
| 1817 | return(xmlStrdup(BAD_CAST "#comment")); |
| 1818 | case XML_DOCUMENT_NODE: |
| 1819 | case XML_HTML_DOCUMENT_NODE: |
| 1820 | #ifdef LIBXML_DOCB_ENABLED |
| 1821 | case XML_DOCB_DOCUMENT_NODE: |
| 1822 | #endif |
| 1823 | return(xmlStrdup(BAD_CAST "#document")); |
| 1824 | case XML_DOCUMENT_FRAG_NODE: |
| 1825 | return(xmlStrdup(BAD_CAST "#document-fragment")); |
| 1826 | case XML_NOTATION_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1827 | return(xmlStrdup(node->name)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1828 | case XML_DOCUMENT_TYPE_NODE: |
| 1829 | case XML_DTD_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1830 | return(xmlStrdup(node->name)); |
| 1831 | case XML_NAMESPACE_DECL: { |
| 1832 | xmlNsPtr ns = (xmlNsPtr) node; |
| 1833 | |
| 1834 | ret = xmlStrdup(BAD_CAST "xmlns"); |
| 1835 | if (ns->prefix == NULL) |
| 1836 | return(ret); |
| 1837 | ret = xmlStrcat(ret, BAD_CAST ":"); |
| 1838 | ret = xmlStrcat(ret, ns->prefix); |
| 1839 | return(ret); |
| 1840 | } |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1841 | |
| 1842 | case XML_ELEMENT_DECL: |
| 1843 | case XML_ATTRIBUTE_DECL: |
| 1844 | case XML_ENTITY_DECL: |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1845 | case XML_XINCLUDE_START: |
| 1846 | case XML_XINCLUDE_END: |
| 1847 | return(NULL); |
| 1848 | } |
| 1849 | return(NULL); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1850 | } |
| 1851 | |
| 1852 | /** |
| 1853 | * xmlTextReaderPrefix: |
| 1854 | * @reader: the xmlTextReaderPtr used |
| 1855 | * |
| 1856 | * A shorthand reference to the namespace associated with the node. |
| 1857 | * |
| 1858 | * Returns the prefix or NULL if not available |
| 1859 | */ |
| 1860 | xmlChar * |
| 1861 | xmlTextReaderPrefix(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1862 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1863 | if ((reader == NULL) || (reader->node == NULL)) |
| 1864 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1865 | if (reader->curnode != NULL) |
| 1866 | node = reader->curnode; |
| 1867 | else |
| 1868 | node = reader->node; |
| 1869 | if (node->type == XML_NAMESPACE_DECL) { |
| 1870 | xmlNsPtr ns = (xmlNsPtr) node; |
| 1871 | if (ns->prefix == NULL) |
| 1872 | return(NULL); |
| 1873 | return(xmlStrdup(BAD_CAST "xmlns")); |
| 1874 | } |
| 1875 | if ((node->type != XML_ELEMENT_NODE) && |
| 1876 | (node->type != XML_ATTRIBUTE_NODE)) |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1877 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1878 | if ((node->ns != NULL) || (node->ns->prefix != NULL)) |
| 1879 | return(xmlStrdup(node->ns->prefix)); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1880 | return(NULL); |
| 1881 | } |
| 1882 | |
| 1883 | /** |
| 1884 | * xmlTextReaderNamespaceUri: |
| 1885 | * @reader: the xmlTextReaderPtr used |
| 1886 | * |
| 1887 | * The URI defining the namespace associated with the node. |
| 1888 | * |
| 1889 | * Returns the namespace URI or NULL if not available |
| 1890 | */ |
| 1891 | xmlChar * |
| 1892 | xmlTextReaderNamespaceUri(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1893 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1894 | if ((reader == NULL) || (reader->node == NULL)) |
| 1895 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1896 | if (reader->curnode != NULL) |
| 1897 | node = reader->curnode; |
| 1898 | else |
| 1899 | node = reader->node; |
Daniel Veillard | ecaba49 | 2002-12-30 10:55:29 +0000 | [diff] [blame] | 1900 | if (node->type == XML_NAMESPACE_DECL) |
| 1901 | return(xmlStrdup(BAD_CAST "http://www.w3.org/2000/xmlns/")); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1902 | if ((node->type != XML_ELEMENT_NODE) && |
| 1903 | (node->type != XML_ATTRIBUTE_NODE)) |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1904 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1905 | if (node->ns != NULL) |
| 1906 | return(xmlStrdup(node->ns->href)); |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1907 | return(NULL); |
| 1908 | } |
| 1909 | |
| 1910 | /** |
| 1911 | * xmlTextReaderBaseUri: |
| 1912 | * @reader: the xmlTextReaderPtr used |
| 1913 | * |
| 1914 | * The base URI of the node. |
| 1915 | * |
| 1916 | * Returns the base URI or NULL if not available |
| 1917 | */ |
| 1918 | xmlChar * |
| 1919 | xmlTextReaderBaseUri(xmlTextReaderPtr reader) { |
| 1920 | if ((reader == NULL) || (reader->node == NULL)) |
| 1921 | return(NULL); |
| 1922 | return(xmlNodeGetBase(NULL, reader->node)); |
| 1923 | } |
| 1924 | |
| 1925 | /** |
| 1926 | * xmlTextReaderDepth: |
| 1927 | * @reader: the xmlTextReaderPtr used |
| 1928 | * |
| 1929 | * The depth of the node in the tree. |
| 1930 | * |
| 1931 | * Returns the depth or -1 in case of error |
| 1932 | */ |
| 1933 | int |
| 1934 | xmlTextReaderDepth(xmlTextReaderPtr reader) { |
| 1935 | if (reader == NULL) |
| 1936 | return(-1); |
| 1937 | if (reader->node == NULL) |
| 1938 | return(0); |
| 1939 | |
Daniel Veillard | beb70bd | 2002-12-18 14:53:54 +0000 | [diff] [blame] | 1940 | if (reader->curnode != NULL) { |
| 1941 | if ((reader->curnode->type == XML_ATTRIBUTE_NODE) || |
| 1942 | (reader->curnode->type == XML_NAMESPACE_DECL)) |
| 1943 | return(reader->depth + 1); |
| 1944 | return(reader->depth + 2); |
| 1945 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1946 | return(reader->depth); |
| 1947 | } |
| 1948 | |
| 1949 | /** |
| 1950 | * xmlTextReaderHasAttributes: |
| 1951 | * @reader: the xmlTextReaderPtr used |
| 1952 | * |
| 1953 | * Whether the node has attributes. |
| 1954 | * |
| 1955 | * Returns 1 if true, 0 if false, and -1 in case or error |
| 1956 | */ |
| 1957 | int |
| 1958 | xmlTextReaderHasAttributes(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1959 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1960 | if (reader == NULL) |
| 1961 | return(-1); |
| 1962 | if (reader->node == NULL) |
| 1963 | return(0); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1964 | if (reader->curnode != NULL) |
| 1965 | node = reader->curnode; |
| 1966 | else |
| 1967 | node = reader->node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1968 | |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1969 | if ((node->type == XML_ELEMENT_NODE) && |
| 1970 | (node->properties != NULL)) |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1971 | return(1); |
| 1972 | /* TODO: handle the xmlDecl */ |
| 1973 | return(0); |
| 1974 | } |
| 1975 | |
| 1976 | /** |
| 1977 | * xmlTextReaderHasValue: |
| 1978 | * @reader: the xmlTextReaderPtr used |
| 1979 | * |
| 1980 | * Whether the node can have a text value. |
| 1981 | * |
| 1982 | * Returns 1 if true, 0 if false, and -1 in case or error |
| 1983 | */ |
| 1984 | int |
| 1985 | xmlTextReaderHasValue(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1986 | xmlNodePtr node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1987 | if (reader == NULL) |
| 1988 | return(-1); |
| 1989 | if (reader->node == NULL) |
| 1990 | return(0); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1991 | if (reader->curnode != NULL) |
| 1992 | node = reader->curnode; |
| 1993 | else |
| 1994 | node = reader->node; |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 1995 | |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 1996 | switch (node->type) { |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 1997 | case XML_ATTRIBUTE_NODE: |
| 1998 | case XML_TEXT_NODE: |
| 1999 | case XML_CDATA_SECTION_NODE: |
| 2000 | case XML_PI_NODE: |
| 2001 | case XML_COMMENT_NODE: |
| 2002 | return(1); |
| 2003 | default: |
| 2004 | return(0); |
| 2005 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 2006 | return(0); |
| 2007 | } |
| 2008 | |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 2009 | /** |
| 2010 | * xmlTextReaderValue: |
| 2011 | * @reader: the xmlTextReaderPtr used |
| 2012 | * |
| 2013 | * Provides the text value of the node if present |
| 2014 | * |
| 2015 | * Returns the string or NULL if not available. The retsult must be deallocated |
| 2016 | * with xmlFree() |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 2017 | */ |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 2018 | xmlChar * |
| 2019 | xmlTextReaderValue(xmlTextReaderPtr reader) { |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 2020 | xmlNodePtr node; |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 2021 | if (reader == NULL) |
| 2022 | return(NULL); |
| 2023 | if (reader->node == NULL) |
| 2024 | return(NULL); |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 2025 | if (reader->curnode != NULL) |
| 2026 | node = reader->curnode; |
| 2027 | else |
| 2028 | node = reader->node; |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 2029 | |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 2030 | switch (node->type) { |
| 2031 | case XML_NAMESPACE_DECL: |
| 2032 | return(xmlStrdup(((xmlNsPtr) node)->href)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 2033 | case XML_ATTRIBUTE_NODE:{ |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 2034 | xmlAttrPtr attr = (xmlAttrPtr) node; |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 2035 | |
| 2036 | if (attr->parent != NULL) |
| 2037 | return (xmlNodeListGetString |
| 2038 | (attr->parent->doc, attr->children, 1)); |
| 2039 | else |
| 2040 | return (xmlNodeListGetString(NULL, attr->children, 1)); |
| 2041 | break; |
| 2042 | } |
| 2043 | case XML_TEXT_NODE: |
| 2044 | case XML_CDATA_SECTION_NODE: |
| 2045 | case XML_PI_NODE: |
| 2046 | case XML_COMMENT_NODE: |
Daniel Veillard | da46d2d | 2002-12-15 23:36:49 +0000 | [diff] [blame] | 2047 | if (node->content != NULL) |
| 2048 | return (xmlStrdup(node->content)); |
Daniel Veillard | 9b4bb4d | 2002-12-11 19:28:47 +0000 | [diff] [blame] | 2049 | default: |
| 2050 | return(NULL); |
| 2051 | } |
| 2052 | return(NULL); |
| 2053 | } |
| 2054 | |
| 2055 | /** |
| 2056 | * xmlTextReaderIsDefault: |
| 2057 | * @reader: the xmlTextReaderPtr used |
| 2058 | * |
| 2059 | * Whether an Attribute node was generated from the default value |
| 2060 | * defined in the DTD or schema. |
| 2061 | * |
| 2062 | * Returns 0 if not defaulted, 1 if defaulted, and -1 in case of error |
| 2063 | */ |
| 2064 | int |
| 2065 | xmlTextReaderIsDefault(xmlTextReaderPtr reader) { |
| 2066 | if (reader == NULL) |
| 2067 | return(-1); |
| 2068 | return(0); |
| 2069 | } |
| 2070 | |
| 2071 | /** |
| 2072 | * xmlTextReaderQuoteChar: |
| 2073 | * @reader: the xmlTextReaderPtr used |
| 2074 | * |
| 2075 | * The quotation mark character used to enclose the value of an attribute. |
| 2076 | * |
| 2077 | * Returns " or ' and -1 in case of error |
| 2078 | */ |
| 2079 | int |
| 2080 | xmlTextReaderQuoteChar(xmlTextReaderPtr reader) { |
| 2081 | if (reader == NULL) |
| 2082 | return(-1); |
| 2083 | /* TODO maybe lookup the attribute value for " first */ |
| 2084 | return((int) '"'); |
| 2085 | } |
Daniel Veillard | e1ca503 | 2002-12-09 14:13:43 +0000 | [diff] [blame] | 2086 | |
| 2087 | /** |
| 2088 | * xmlTextReaderXmlLang: |
| 2089 | * @reader: the xmlTextReaderPtr used |
| 2090 | * |
| 2091 | * The xml:lang scope within which the node resides. |
| 2092 | * |
| 2093 | * Returns the xml:lang value or NULL if none exists. |
| 2094 | */ |
| 2095 | xmlChar * |
| 2096 | xmlTextReaderXmlLang(xmlTextReaderPtr reader) { |
| 2097 | if (reader == NULL) |
| 2098 | return(NULL); |
| 2099 | if (reader->node == NULL) |
| 2100 | return(NULL); |
| 2101 | return(xmlNodeGetLang(reader->node)); |
| 2102 | } |
| 2103 | |
Daniel Veillard | 67df809 | 2002-12-16 22:04:11 +0000 | [diff] [blame] | 2104 | /** |
| 2105 | * xmlTextReaderNormalization: |
| 2106 | * @reader: the xmlTextReaderPtr used |
| 2107 | * |
| 2108 | * The value indicating whether to normalize white space and attribute values. |
| 2109 | * Since attribute value and end of line normalizations are a MUST in the XML |
| 2110 | * specification only the value true is accepted. The broken bahaviour of |
| 2111 | * accepting out of range character entities like � is of course not |
| 2112 | * supported either. |
| 2113 | * |
| 2114 | * Returns 1 or -1 in case of error. |
| 2115 | */ |
| 2116 | int |
| 2117 | xmlTextReaderNormalization(xmlTextReaderPtr reader) { |
| 2118 | if (reader == NULL) |
| 2119 | return(-1); |
| 2120 | return(1); |
| 2121 | } |
| 2122 | |
Daniel Veillard | beb70bd | 2002-12-18 14:53:54 +0000 | [diff] [blame] | 2123 | /************************************************************************ |
| 2124 | * * |
| 2125 | * Extensions to the base APIs * |
| 2126 | * * |
| 2127 | ************************************************************************/ |
| 2128 | |
| 2129 | /** |
| 2130 | * xmlTextReaderSetParserProp: |
| 2131 | * @reader: the xmlTextReaderPtr used |
| 2132 | * @prop: the xmlParserProperties to set |
| 2133 | * @value: usually 0 or 1 to (de)activate it |
| 2134 | * |
| 2135 | * Change the parser processing behaviour by changing some of its internal |
| 2136 | * properties. Note that some properties can only be changed before any |
| 2137 | * read has been done. |
| 2138 | * |
| 2139 | * Returns 0 if the call was successful, or -1 in case of error |
| 2140 | */ |
| 2141 | int |
| 2142 | xmlTextReaderSetParserProp(xmlTextReaderPtr reader, int prop, int value) { |
| 2143 | xmlParserProperties p = (xmlParserProperties) prop; |
| 2144 | xmlParserCtxtPtr ctxt; |
| 2145 | |
| 2146 | if ((reader == NULL) || (reader->ctxt == NULL)) |
| 2147 | return(-1); |
| 2148 | ctxt = reader->ctxt; |
| 2149 | |
| 2150 | switch (p) { |
| 2151 | case XML_PARSER_LOADDTD: |
| 2152 | if (value != 0) { |
| 2153 | if (ctxt->loadsubset == 0) { |
| 2154 | if (reader->mode != XML_TEXTREADER_MODE_INITIAL) |
| 2155 | return(-1); |
| 2156 | ctxt->loadsubset = XML_DETECT_IDS; |
| 2157 | } |
| 2158 | } else { |
| 2159 | ctxt->loadsubset = 0; |
| 2160 | } |
| 2161 | return(0); |
| 2162 | case XML_PARSER_DEFAULTATTRS: |
| 2163 | if (value != 0) { |
| 2164 | ctxt->loadsubset |= XML_COMPLETE_ATTRS; |
| 2165 | } else { |
| 2166 | if (ctxt->loadsubset & XML_COMPLETE_ATTRS) |
| 2167 | ctxt->loadsubset -= XML_COMPLETE_ATTRS; |
| 2168 | } |
| 2169 | return(0); |
| 2170 | case XML_PARSER_VALIDATE: |
| 2171 | if (value != 0) { |
| 2172 | ctxt->validate = 1; |
| 2173 | } else { |
| 2174 | ctxt->validate = 0; |
| 2175 | } |
| 2176 | return(0); |
Daniel Veillard | e18fc18 | 2002-12-28 22:56:33 +0000 | [diff] [blame] | 2177 | case XML_PARSER_SUBST_ENTITIES: |
| 2178 | if (value != 0) { |
| 2179 | ctxt->replaceEntities = 1; |
| 2180 | } else { |
| 2181 | ctxt->replaceEntities = 0; |
| 2182 | } |
| 2183 | return(0); |
Daniel Veillard | beb70bd | 2002-12-18 14:53:54 +0000 | [diff] [blame] | 2184 | } |
| 2185 | return(-1); |
| 2186 | } |
| 2187 | |
| 2188 | /** |
| 2189 | * xmlTextReaderGetParserProp: |
| 2190 | * @reader: the xmlTextReaderPtr used |
| 2191 | * @prop: the xmlParserProperties to get |
| 2192 | * |
| 2193 | * Read the parser internal property. |
| 2194 | * |
| 2195 | * Returns the value, usually 0 or 1, or -1 in case of error. |
| 2196 | */ |
| 2197 | int |
| 2198 | xmlTextReaderGetParserProp(xmlTextReaderPtr reader, int prop) { |
| 2199 | xmlParserProperties p = (xmlParserProperties) prop; |
| 2200 | xmlParserCtxtPtr ctxt; |
| 2201 | |
| 2202 | if ((reader == NULL) || (reader->ctxt == NULL)) |
| 2203 | return(-1); |
| 2204 | ctxt = reader->ctxt; |
| 2205 | |
| 2206 | switch (p) { |
| 2207 | case XML_PARSER_LOADDTD: |
| 2208 | if ((ctxt->loadsubset != 0) || (ctxt->validate != 0)) |
| 2209 | return(1); |
| 2210 | return(0); |
| 2211 | case XML_PARSER_DEFAULTATTRS: |
| 2212 | if (ctxt->loadsubset & XML_COMPLETE_ATTRS) |
| 2213 | return(1); |
| 2214 | return(0); |
| 2215 | case XML_PARSER_VALIDATE: |
| 2216 | return(ctxt->validate); |
Daniel Veillard | e18fc18 | 2002-12-28 22:56:33 +0000 | [diff] [blame] | 2217 | case XML_PARSER_SUBST_ENTITIES: |
| 2218 | return(ctxt->replaceEntities); |
Daniel Veillard | beb70bd | 2002-12-18 14:53:54 +0000 | [diff] [blame] | 2219 | } |
| 2220 | return(-1); |
| 2221 | } |
| 2222 | |
Daniel Veillard | e18fc18 | 2002-12-28 22:56:33 +0000 | [diff] [blame] | 2223 | /** |
| 2224 | * xmlTextReaderCurrentNode: |
| 2225 | * @reader: the xmlTextReaderPtr used |
| 2226 | * |
| 2227 | * Hacking interface allowing to get the xmlNodePtr correponding to the |
| 2228 | * current node being accessed by the xmlTextReader. This is dangerous |
| 2229 | * because the underlying node may be destroyed on the next Reads. |
| 2230 | * |
| 2231 | * Returns the xmlNodePtr or NULL in case of error. |
| 2232 | */ |
| 2233 | xmlNodePtr |
| 2234 | xmlTextReaderCurrentNode(xmlTextReaderPtr reader) { |
| 2235 | if (reader == NULL) |
| 2236 | return(NULL); |
| 2237 | |
| 2238 | if (reader->curnode != NULL) |
| 2239 | return(reader->curnode); |
| 2240 | return(reader->node); |
| 2241 | } |
| 2242 | |
| 2243 | /** |
| 2244 | * xmlTextReaderCurrentDoc: |
| 2245 | * @reader: the xmlTextReaderPtr used |
| 2246 | * |
| 2247 | * Hacking interface allowing to get the xmlDocPtr correponding to the |
| 2248 | * current document being accessed by the xmlTextReader. This is dangerous |
| 2249 | * because the associated node may be destroyed on the next Reads. |
| 2250 | * |
| 2251 | * Returns the xmlDocPtr or NULL in case of error. |
| 2252 | */ |
| 2253 | xmlDocPtr |
| 2254 | xmlTextReaderCurrentDoc(xmlTextReaderPtr reader) { |
| 2255 | if ((reader == NULL) || (reader->ctxt == NULL)) |
| 2256 | return(NULL); |
| 2257 | |
| 2258 | return(reader->ctxt->myDoc); |
| 2259 | } |
| 2260 | |
Daniel Veillard | beb70bd | 2002-12-18 14:53:54 +0000 | [diff] [blame] | 2261 | /************************************************************************ |
| 2262 | * * |
| 2263 | * Utilities * |
| 2264 | * * |
| 2265 | ************************************************************************/ |
| 2266 | /** |
| 2267 | * xmlBase64Decode: |
| 2268 | * @in: the input buffer |
| 2269 | * @inlen: the size of the input (in), the size read from it (out) |
| 2270 | * @to: the output buffer |
| 2271 | * @tolen: the size of the output (in), the size written to (out) |
| 2272 | * |
| 2273 | * Base64 decoder, reads from @in and save in @to |
| 2274 | * |
| 2275 | * Returns 0 if all the input was consumer, 1 if the Base64 end was reached, |
| 2276 | * 2 if there wasn't enough space on the output or -1 in case of error. |
| 2277 | */ |
| 2278 | static int |
| 2279 | xmlBase64Decode(const unsigned char *in, unsigned long *inlen, |
| 2280 | unsigned char *to, unsigned long *tolen) { |
| 2281 | unsigned long incur; /* current index in in[] */ |
| 2282 | unsigned long inblk; /* last block index in in[] */ |
| 2283 | unsigned long outcur; /* current index in out[] */ |
| 2284 | unsigned long inmax; /* size of in[] */ |
| 2285 | unsigned long outmax; /* size of out[] */ |
| 2286 | unsigned char cur; /* the current value read from in[] */ |
| 2287 | unsigned char intmp[3], outtmp[4]; /* temporary buffers for the convert */ |
| 2288 | int nbintmp; /* number of byte in intmp[] */ |
| 2289 | int is_ignore; /* cur should be ignored */ |
| 2290 | int is_end = 0; /* the end of the base64 was found */ |
| 2291 | int retval = 1; |
| 2292 | int i; |
| 2293 | |
| 2294 | if ((in == NULL) || (inlen == NULL) || (to == NULL) || (tolen == NULL)) |
| 2295 | return(-1); |
| 2296 | |
| 2297 | incur = 0; |
| 2298 | inblk = 0; |
| 2299 | outcur = 0; |
| 2300 | inmax = *inlen; |
| 2301 | outmax = *tolen; |
| 2302 | nbintmp = 0; |
| 2303 | |
| 2304 | while (1) { |
| 2305 | if (incur >= inmax) |
| 2306 | break; |
| 2307 | cur = in[incur++]; |
| 2308 | is_ignore = 0; |
| 2309 | if ((cur >= 'A') && (cur <= 'Z')) |
| 2310 | cur = cur - 'A'; |
| 2311 | else if ((cur >= 'a') && (cur <= 'z')) |
| 2312 | cur = cur - 'a' + 26; |
| 2313 | else if ((cur >= '0') && (cur <= '9')) |
| 2314 | cur = cur - '0' + 52; |
| 2315 | else if (cur == '+') |
| 2316 | cur = 62; |
| 2317 | else if (cur == '/') |
| 2318 | cur = 63; |
| 2319 | else if (cur == '.') |
| 2320 | cur = 0; |
| 2321 | else if (cur == '=') /*no op , end of the base64 stream */ |
| 2322 | is_end = 1; |
| 2323 | else { |
| 2324 | is_ignore = 1; |
| 2325 | if (nbintmp == 0) |
| 2326 | inblk = incur; |
| 2327 | } |
| 2328 | |
| 2329 | if (!is_ignore) { |
| 2330 | int nbouttmp = 3; |
| 2331 | int is_break = 0; |
| 2332 | |
| 2333 | if (is_end) { |
| 2334 | if (nbintmp == 0) |
| 2335 | break; |
| 2336 | if ((nbintmp == 1) || (nbintmp == 2)) |
| 2337 | nbouttmp = 1; |
| 2338 | else |
| 2339 | nbouttmp = 2; |
| 2340 | nbintmp = 3; |
| 2341 | is_break = 1; |
| 2342 | } |
| 2343 | intmp[nbintmp++] = cur; |
| 2344 | /* |
| 2345 | * if intmp is full, push the 4byte sequence as a 3 byte |
| 2346 | * sequence out |
| 2347 | */ |
| 2348 | if (nbintmp == 4) { |
| 2349 | nbintmp = 0; |
| 2350 | outtmp[0] = (intmp[0] << 2) | ((intmp[1] & 0x30) >> 4); |
| 2351 | outtmp[1] = |
| 2352 | ((intmp[1] & 0x0F) << 4) | ((intmp[2] & 0x3C) >> 2); |
| 2353 | outtmp[2] = ((intmp[2] & 0x03) << 6) | (intmp[3] & 0x3F); |
| 2354 | if (outcur + 3 >= outmax) { |
| 2355 | retval = 2; |
| 2356 | break; |
| 2357 | } |
| 2358 | |
| 2359 | for (i = 0; i < nbouttmp; i++) |
| 2360 | to[outcur++] = outtmp[i]; |
| 2361 | inblk = incur; |
| 2362 | } |
| 2363 | |
| 2364 | if (is_break) { |
| 2365 | retval = 0; |
| 2366 | break; |
| 2367 | } |
| 2368 | } |
| 2369 | } |
| 2370 | |
| 2371 | *tolen = outcur; |
| 2372 | *inlen = inblk; |
| 2373 | return (retval); |
| 2374 | } |
| 2375 | |
| 2376 | /* |
| 2377 | * Test routine for the xmlBase64Decode function |
| 2378 | */ |
| 2379 | #if 0 |
| 2380 | int main(int argc, char **argv) { |
| 2381 | char *input = " VW4 gcGV0 \n aXQgdGVzdCAuCg== "; |
| 2382 | char output[100]; |
| 2383 | char output2[100]; |
| 2384 | char output3[100]; |
| 2385 | unsigned long inlen = strlen(input); |
| 2386 | unsigned long outlen = 100; |
| 2387 | int ret; |
| 2388 | unsigned long cons, tmp, tmp2, prod; |
| 2389 | |
| 2390 | /* |
| 2391 | * Direct |
| 2392 | */ |
| 2393 | ret = xmlBase64Decode(input, &inlen, output, &outlen); |
| 2394 | |
| 2395 | output[outlen] = 0; |
| 2396 | printf("ret: %d, inlen: %ld , outlen: %ld, output: '%s'\n", ret, inlen, outlen, output); |
| 2397 | |
| 2398 | /* |
| 2399 | * output chunking |
| 2400 | */ |
| 2401 | cons = 0; |
| 2402 | prod = 0; |
| 2403 | while (cons < inlen) { |
| 2404 | tmp = 5; |
| 2405 | tmp2 = inlen - cons; |
| 2406 | |
| 2407 | printf("%ld %ld\n", cons, prod); |
| 2408 | ret = xmlBase64Decode(&input[cons], &tmp2, &output2[prod], &tmp); |
| 2409 | cons += tmp2; |
| 2410 | prod += tmp; |
| 2411 | printf("%ld %ld\n", cons, prod); |
| 2412 | } |
| 2413 | output2[outlen] = 0; |
| 2414 | printf("ret: %d, cons: %ld , prod: %ld, output: '%s'\n", ret, cons, prod, output2); |
| 2415 | |
| 2416 | /* |
| 2417 | * input chunking |
| 2418 | */ |
| 2419 | cons = 0; |
| 2420 | prod = 0; |
| 2421 | while (cons < inlen) { |
| 2422 | tmp = 100 - prod; |
| 2423 | tmp2 = inlen - cons; |
| 2424 | if (tmp2 > 5) |
| 2425 | tmp2 = 5; |
| 2426 | |
| 2427 | printf("%ld %ld\n", cons, prod); |
| 2428 | ret = xmlBase64Decode(&input[cons], &tmp2, &output3[prod], &tmp); |
| 2429 | cons += tmp2; |
| 2430 | prod += tmp; |
| 2431 | printf("%ld %ld\n", cons, prod); |
| 2432 | } |
| 2433 | output3[outlen] = 0; |
| 2434 | printf("ret: %d, cons: %ld , prod: %ld, output: '%s'\n", ret, cons, prod, output3); |
| 2435 | return(0); |
| 2436 | |
| 2437 | } |
| 2438 | #endif |