rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Summary: the XMLReader implementation |
| 3 | * Description: API of the XML streaming API based on C# interfaces. |
| 4 | * |
| 5 | * Copy: See Copyright for the status of this software. |
| 6 | * |
| 7 | * Author: Daniel Veillard |
| 8 | */ |
| 9 | |
| 10 | #ifndef __XML_XMLREADER_H__ |
| 11 | #define __XML_XMLREADER_H__ |
| 12 | |
| 13 | #include <libxml/xmlversion.h> |
| 14 | #include <libxml/tree.h> |
| 15 | #include <libxml/xmlIO.h> |
| 16 | #ifdef LIBXML_SCHEMAS_ENABLED |
| 17 | #include <libxml/relaxng.h> |
| 18 | #include <libxml/xmlschemas.h> |
| 19 | #endif |
| 20 | |
| 21 | #ifdef __cplusplus |
| 22 | extern "C" { |
| 23 | #endif |
| 24 | |
| 25 | /** |
| 26 | * xmlParserSeverities: |
| 27 | * |
| 28 | * How severe an error callback is when the per-reader error callback API |
| 29 | * is used. |
| 30 | */ |
| 31 | typedef enum { |
| 32 | XML_PARSER_SEVERITY_VALIDITY_WARNING = 1, |
| 33 | XML_PARSER_SEVERITY_VALIDITY_ERROR = 2, |
| 34 | XML_PARSER_SEVERITY_WARNING = 3, |
| 35 | XML_PARSER_SEVERITY_ERROR = 4 |
| 36 | } xmlParserSeverities; |
| 37 | |
| 38 | #ifdef LIBXML_READER_ENABLED |
| 39 | |
| 40 | /** |
| 41 | * xmlTextReaderMode: |
| 42 | * |
| 43 | * Internal state values for the reader. |
| 44 | */ |
| 45 | typedef enum { |
| 46 | XML_TEXTREADER_MODE_INITIAL = 0, |
| 47 | XML_TEXTREADER_MODE_INTERACTIVE = 1, |
| 48 | XML_TEXTREADER_MODE_ERROR = 2, |
| 49 | XML_TEXTREADER_MODE_EOF =3, |
| 50 | XML_TEXTREADER_MODE_CLOSED = 4, |
| 51 | XML_TEXTREADER_MODE_READING = 5 |
| 52 | } xmlTextReaderMode; |
| 53 | |
| 54 | /** |
| 55 | * xmlParserProperties: |
| 56 | * |
| 57 | * Some common options to use with xmlTextReaderSetParserProp, but it |
| 58 | * is better to use xmlParserOption and the xmlReaderNewxxx and |
| 59 | * xmlReaderForxxx APIs now. |
| 60 | */ |
| 61 | typedef enum { |
| 62 | XML_PARSER_LOADDTD = 1, |
| 63 | XML_PARSER_DEFAULTATTRS = 2, |
| 64 | XML_PARSER_VALIDATE = 3, |
| 65 | XML_PARSER_SUBST_ENTITIES = 4 |
| 66 | } xmlParserProperties; |
| 67 | |
| 68 | /** |
| 69 | * xmlReaderTypes: |
| 70 | * |
| 71 | * Predefined constants for the different types of nodes. |
| 72 | */ |
| 73 | typedef enum { |
| 74 | XML_READER_TYPE_NONE = 0, |
| 75 | XML_READER_TYPE_ELEMENT = 1, |
| 76 | XML_READER_TYPE_ATTRIBUTE = 2, |
| 77 | XML_READER_TYPE_TEXT = 3, |
| 78 | XML_READER_TYPE_CDATA = 4, |
| 79 | XML_READER_TYPE_ENTITY_REFERENCE = 5, |
| 80 | XML_READER_TYPE_ENTITY = 6, |
| 81 | XML_READER_TYPE_PROCESSING_INSTRUCTION = 7, |
| 82 | XML_READER_TYPE_COMMENT = 8, |
| 83 | XML_READER_TYPE_DOCUMENT = 9, |
| 84 | XML_READER_TYPE_DOCUMENT_TYPE = 10, |
| 85 | XML_READER_TYPE_DOCUMENT_FRAGMENT = 11, |
| 86 | XML_READER_TYPE_NOTATION = 12, |
| 87 | XML_READER_TYPE_WHITESPACE = 13, |
| 88 | XML_READER_TYPE_SIGNIFICANT_WHITESPACE = 14, |
| 89 | XML_READER_TYPE_END_ELEMENT = 15, |
| 90 | XML_READER_TYPE_END_ENTITY = 16, |
| 91 | XML_READER_TYPE_XML_DECLARATION = 17 |
| 92 | } xmlReaderTypes; |
| 93 | |
| 94 | /** |
| 95 | * xmlTextReader: |
| 96 | * |
| 97 | * Structure for an xmlReader context. |
| 98 | */ |
| 99 | typedef struct _xmlTextReader xmlTextReader; |
| 100 | |
| 101 | /** |
| 102 | * xmlTextReaderPtr: |
| 103 | * |
| 104 | * Pointer to an xmlReader context. |
| 105 | */ |
| 106 | typedef xmlTextReader *xmlTextReaderPtr; |
| 107 | |
| 108 | /* |
| 109 | * Constructors & Destructor |
| 110 | */ |
| 111 | XMLPUBFUN xmlTextReaderPtr XMLCALL |
| 112 | xmlNewTextReader (xmlParserInputBufferPtr input, |
| 113 | const char *URI); |
| 114 | XMLPUBFUN xmlTextReaderPtr XMLCALL |
| 115 | xmlNewTextReaderFilename(const char *URI); |
| 116 | |
| 117 | XMLPUBFUN void XMLCALL |
| 118 | xmlFreeTextReader (xmlTextReaderPtr reader); |
| 119 | |
| 120 | XMLPUBFUN int XMLCALL |
| 121 | xmlTextReaderSetup(xmlTextReaderPtr reader, |
| 122 | xmlParserInputBufferPtr input, const char *URL, |
| 123 | const char *encoding, int options); |
| 124 | |
| 125 | /* |
| 126 | * Iterators |
| 127 | */ |
| 128 | XMLPUBFUN int XMLCALL |
| 129 | xmlTextReaderRead (xmlTextReaderPtr reader); |
| 130 | |
| 131 | #ifdef LIBXML_WRITER_ENABLED |
| 132 | XMLPUBFUN xmlChar * XMLCALL |
| 133 | xmlTextReaderReadInnerXml (xmlTextReaderPtr reader); |
| 134 | |
| 135 | XMLPUBFUN xmlChar * XMLCALL |
| 136 | xmlTextReaderReadOuterXml (xmlTextReaderPtr reader); |
| 137 | #endif |
| 138 | |
| 139 | XMLPUBFUN xmlChar * XMLCALL |
| 140 | xmlTextReaderReadString (xmlTextReaderPtr reader); |
| 141 | XMLPUBFUN int XMLCALL |
| 142 | xmlTextReaderReadAttributeValue (xmlTextReaderPtr reader); |
| 143 | |
| 144 | /* |
| 145 | * Attributes of the node |
| 146 | */ |
| 147 | XMLPUBFUN int XMLCALL |
| 148 | xmlTextReaderAttributeCount(xmlTextReaderPtr reader); |
| 149 | XMLPUBFUN int XMLCALL |
| 150 | xmlTextReaderDepth (xmlTextReaderPtr reader); |
| 151 | XMLPUBFUN int XMLCALL |
| 152 | xmlTextReaderHasAttributes(xmlTextReaderPtr reader); |
| 153 | XMLPUBFUN int XMLCALL |
| 154 | xmlTextReaderHasValue(xmlTextReaderPtr reader); |
| 155 | XMLPUBFUN int XMLCALL |
| 156 | xmlTextReaderIsDefault (xmlTextReaderPtr reader); |
| 157 | XMLPUBFUN int XMLCALL |
| 158 | xmlTextReaderIsEmptyElement(xmlTextReaderPtr reader); |
| 159 | XMLPUBFUN int XMLCALL |
| 160 | xmlTextReaderNodeType (xmlTextReaderPtr reader); |
| 161 | XMLPUBFUN int XMLCALL |
| 162 | xmlTextReaderQuoteChar (xmlTextReaderPtr reader); |
| 163 | XMLPUBFUN int XMLCALL |
| 164 | xmlTextReaderReadState (xmlTextReaderPtr reader); |
| 165 | XMLPUBFUN int XMLCALL |
| 166 | xmlTextReaderIsNamespaceDecl(xmlTextReaderPtr reader); |
| 167 | |
| 168 | XMLPUBFUN const xmlChar * XMLCALL |
| 169 | xmlTextReaderConstBaseUri (xmlTextReaderPtr reader); |
| 170 | XMLPUBFUN const xmlChar * XMLCALL |
| 171 | xmlTextReaderConstLocalName (xmlTextReaderPtr reader); |
| 172 | XMLPUBFUN const xmlChar * XMLCALL |
| 173 | xmlTextReaderConstName (xmlTextReaderPtr reader); |
| 174 | XMLPUBFUN const xmlChar * XMLCALL |
| 175 | xmlTextReaderConstNamespaceUri(xmlTextReaderPtr reader); |
| 176 | XMLPUBFUN const xmlChar * XMLCALL |
| 177 | xmlTextReaderConstPrefix (xmlTextReaderPtr reader); |
| 178 | XMLPUBFUN const xmlChar * XMLCALL |
| 179 | xmlTextReaderConstXmlLang (xmlTextReaderPtr reader); |
| 180 | XMLPUBFUN const xmlChar * XMLCALL |
| 181 | xmlTextReaderConstString (xmlTextReaderPtr reader, |
| 182 | const xmlChar *str); |
| 183 | XMLPUBFUN const xmlChar * XMLCALL |
| 184 | xmlTextReaderConstValue (xmlTextReaderPtr reader); |
| 185 | |
| 186 | /* |
| 187 | * use the Const version of the routine for |
| 188 | * better performance and simpler code |
| 189 | */ |
| 190 | XMLPUBFUN xmlChar * XMLCALL |
| 191 | xmlTextReaderBaseUri (xmlTextReaderPtr reader); |
| 192 | XMLPUBFUN xmlChar * XMLCALL |
| 193 | xmlTextReaderLocalName (xmlTextReaderPtr reader); |
| 194 | XMLPUBFUN xmlChar * XMLCALL |
| 195 | xmlTextReaderName (xmlTextReaderPtr reader); |
| 196 | XMLPUBFUN xmlChar * XMLCALL |
| 197 | xmlTextReaderNamespaceUri(xmlTextReaderPtr reader); |
| 198 | XMLPUBFUN xmlChar * XMLCALL |
| 199 | xmlTextReaderPrefix (xmlTextReaderPtr reader); |
| 200 | XMLPUBFUN xmlChar * XMLCALL |
| 201 | xmlTextReaderXmlLang (xmlTextReaderPtr reader); |
| 202 | XMLPUBFUN xmlChar * XMLCALL |
| 203 | xmlTextReaderValue (xmlTextReaderPtr reader); |
| 204 | |
| 205 | /* |
| 206 | * Methods of the XmlTextReader |
| 207 | */ |
| 208 | XMLPUBFUN int XMLCALL |
| 209 | xmlTextReaderClose (xmlTextReaderPtr reader); |
| 210 | XMLPUBFUN xmlChar * XMLCALL |
| 211 | xmlTextReaderGetAttributeNo (xmlTextReaderPtr reader, |
| 212 | int no); |
| 213 | XMLPUBFUN xmlChar * XMLCALL |
| 214 | xmlTextReaderGetAttribute (xmlTextReaderPtr reader, |
| 215 | const xmlChar *name); |
| 216 | XMLPUBFUN xmlChar * XMLCALL |
| 217 | xmlTextReaderGetAttributeNs (xmlTextReaderPtr reader, |
| 218 | const xmlChar *localName, |
| 219 | const xmlChar *namespaceURI); |
| 220 | XMLPUBFUN xmlParserInputBufferPtr XMLCALL |
| 221 | xmlTextReaderGetRemainder (xmlTextReaderPtr reader); |
| 222 | XMLPUBFUN xmlChar * XMLCALL |
| 223 | xmlTextReaderLookupNamespace(xmlTextReaderPtr reader, |
| 224 | const xmlChar *prefix); |
| 225 | XMLPUBFUN int XMLCALL |
| 226 | xmlTextReaderMoveToAttributeNo(xmlTextReaderPtr reader, |
| 227 | int no); |
| 228 | XMLPUBFUN int XMLCALL |
| 229 | xmlTextReaderMoveToAttribute(xmlTextReaderPtr reader, |
| 230 | const xmlChar *name); |
| 231 | XMLPUBFUN int XMLCALL |
| 232 | xmlTextReaderMoveToAttributeNs(xmlTextReaderPtr reader, |
| 233 | const xmlChar *localName, |
| 234 | const xmlChar *namespaceURI); |
| 235 | XMLPUBFUN int XMLCALL |
| 236 | xmlTextReaderMoveToFirstAttribute(xmlTextReaderPtr reader); |
| 237 | XMLPUBFUN int XMLCALL |
| 238 | xmlTextReaderMoveToNextAttribute(xmlTextReaderPtr reader); |
| 239 | XMLPUBFUN int XMLCALL |
| 240 | xmlTextReaderMoveToElement (xmlTextReaderPtr reader); |
| 241 | XMLPUBFUN int XMLCALL |
| 242 | xmlTextReaderNormalization (xmlTextReaderPtr reader); |
| 243 | XMLPUBFUN const xmlChar * XMLCALL |
| 244 | xmlTextReaderConstEncoding (xmlTextReaderPtr reader); |
| 245 | |
| 246 | /* |
| 247 | * Extensions |
| 248 | */ |
| 249 | XMLPUBFUN int XMLCALL |
| 250 | xmlTextReaderSetParserProp (xmlTextReaderPtr reader, |
| 251 | int prop, |
| 252 | int value); |
| 253 | XMLPUBFUN int XMLCALL |
| 254 | xmlTextReaderGetParserProp (xmlTextReaderPtr reader, |
| 255 | int prop); |
| 256 | XMLPUBFUN xmlNodePtr XMLCALL |
| 257 | xmlTextReaderCurrentNode (xmlTextReaderPtr reader); |
| 258 | |
| 259 | XMLPUBFUN int XMLCALL |
| 260 | xmlTextReaderGetParserLineNumber(xmlTextReaderPtr reader); |
| 261 | |
| 262 | XMLPUBFUN int XMLCALL |
| 263 | xmlTextReaderGetParserColumnNumber(xmlTextReaderPtr reader); |
| 264 | |
| 265 | XMLPUBFUN xmlNodePtr XMLCALL |
| 266 | xmlTextReaderPreserve (xmlTextReaderPtr reader); |
| 267 | #ifdef LIBXML_PATTERN_ENABLED |
| 268 | XMLPUBFUN int XMLCALL |
| 269 | xmlTextReaderPreservePattern(xmlTextReaderPtr reader, |
| 270 | const xmlChar *pattern, |
| 271 | const xmlChar **namespaces); |
| 272 | #endif /* LIBXML_PATTERN_ENABLED */ |
| 273 | XMLPUBFUN xmlDocPtr XMLCALL |
| 274 | xmlTextReaderCurrentDoc (xmlTextReaderPtr reader); |
| 275 | XMLPUBFUN xmlNodePtr XMLCALL |
| 276 | xmlTextReaderExpand (xmlTextReaderPtr reader); |
| 277 | XMLPUBFUN int XMLCALL |
| 278 | xmlTextReaderNext (xmlTextReaderPtr reader); |
| 279 | XMLPUBFUN int XMLCALL |
| 280 | xmlTextReaderNextSibling (xmlTextReaderPtr reader); |
| 281 | XMLPUBFUN int XMLCALL |
| 282 | xmlTextReaderIsValid (xmlTextReaderPtr reader); |
| 283 | #ifdef LIBXML_SCHEMAS_ENABLED |
| 284 | XMLPUBFUN int XMLCALL |
| 285 | xmlTextReaderRelaxNGValidate(xmlTextReaderPtr reader, |
| 286 | const char *rng); |
| 287 | XMLPUBFUN int XMLCALL |
| 288 | xmlTextReaderRelaxNGSetSchema(xmlTextReaderPtr reader, |
| 289 | xmlRelaxNGPtr schema); |
| 290 | XMLPUBFUN int XMLCALL |
| 291 | xmlTextReaderSchemaValidate (xmlTextReaderPtr reader, |
| 292 | const char *xsd); |
| 293 | XMLPUBFUN int XMLCALL |
| 294 | xmlTextReaderSchemaValidateCtxt(xmlTextReaderPtr reader, |
| 295 | xmlSchemaValidCtxtPtr ctxt, |
| 296 | int options); |
| 297 | XMLPUBFUN int XMLCALL |
| 298 | xmlTextReaderSetSchema (xmlTextReaderPtr reader, |
| 299 | xmlSchemaPtr schema); |
| 300 | #endif |
| 301 | XMLPUBFUN const xmlChar * XMLCALL |
| 302 | xmlTextReaderConstXmlVersion(xmlTextReaderPtr reader); |
| 303 | XMLPUBFUN int XMLCALL |
| 304 | xmlTextReaderStandalone (xmlTextReaderPtr reader); |
| 305 | |
| 306 | |
| 307 | /* |
| 308 | * Index lookup |
| 309 | */ |
| 310 | XMLPUBFUN long XMLCALL |
| 311 | xmlTextReaderByteConsumed (xmlTextReaderPtr reader); |
| 312 | |
| 313 | /* |
| 314 | * New more complete APIs for simpler creation and reuse of readers |
| 315 | */ |
| 316 | XMLPUBFUN xmlTextReaderPtr XMLCALL |
| 317 | xmlReaderWalker (xmlDocPtr doc); |
| 318 | XMLPUBFUN xmlTextReaderPtr XMLCALL |
| 319 | xmlReaderForDoc (const xmlChar * cur, |
| 320 | const char *URL, |
| 321 | const char *encoding, |
| 322 | int options); |
| 323 | XMLPUBFUN xmlTextReaderPtr XMLCALL |
| 324 | xmlReaderForFile (const char *filename, |
| 325 | const char *encoding, |
| 326 | int options); |
| 327 | XMLPUBFUN xmlTextReaderPtr XMLCALL |
| 328 | xmlReaderForMemory (const char *buffer, |
| 329 | int size, |
| 330 | const char *URL, |
| 331 | const char *encoding, |
| 332 | int options); |
| 333 | XMLPUBFUN xmlTextReaderPtr XMLCALL |
| 334 | xmlReaderForFd (int fd, |
| 335 | const char *URL, |
| 336 | const char *encoding, |
| 337 | int options); |
| 338 | XMLPUBFUN xmlTextReaderPtr XMLCALL |
| 339 | xmlReaderForIO (xmlInputReadCallback ioread, |
| 340 | xmlInputCloseCallback ioclose, |
| 341 | void *ioctx, |
| 342 | const char *URL, |
| 343 | const char *encoding, |
| 344 | int options); |
| 345 | |
| 346 | XMLPUBFUN int XMLCALL |
| 347 | xmlReaderNewWalker (xmlTextReaderPtr reader, |
| 348 | xmlDocPtr doc); |
| 349 | XMLPUBFUN int XMLCALL |
| 350 | xmlReaderNewDoc (xmlTextReaderPtr reader, |
| 351 | const xmlChar * cur, |
| 352 | const char *URL, |
| 353 | const char *encoding, |
| 354 | int options); |
| 355 | XMLPUBFUN int XMLCALL |
| 356 | xmlReaderNewFile (xmlTextReaderPtr reader, |
| 357 | const char *filename, |
| 358 | const char *encoding, |
| 359 | int options); |
| 360 | XMLPUBFUN int XMLCALL |
| 361 | xmlReaderNewMemory (xmlTextReaderPtr reader, |
| 362 | const char *buffer, |
| 363 | int size, |
| 364 | const char *URL, |
| 365 | const char *encoding, |
| 366 | int options); |
| 367 | XMLPUBFUN int XMLCALL |
| 368 | xmlReaderNewFd (xmlTextReaderPtr reader, |
| 369 | int fd, |
| 370 | const char *URL, |
| 371 | const char *encoding, |
| 372 | int options); |
| 373 | XMLPUBFUN int XMLCALL |
| 374 | xmlReaderNewIO (xmlTextReaderPtr reader, |
| 375 | xmlInputReadCallback ioread, |
| 376 | xmlInputCloseCallback ioclose, |
| 377 | void *ioctx, |
| 378 | const char *URL, |
| 379 | const char *encoding, |
| 380 | int options); |
| 381 | /* |
| 382 | * Error handling extensions |
| 383 | */ |
| 384 | typedef void * xmlTextReaderLocatorPtr; |
| 385 | |
| 386 | /** |
| 387 | * xmlTextReaderErrorFunc: |
| 388 | * @arg: the user argument |
| 389 | * @msg: the message |
| 390 | * @severity: the severity of the error |
| 391 | * @locator: a locator indicating where the error occured |
| 392 | * |
| 393 | * Signature of an error callback from a reader parser |
| 394 | */ |
| 395 | typedef void (XMLCALL *xmlTextReaderErrorFunc)(void *arg, |
| 396 | const char *msg, |
| 397 | xmlParserSeverities severity, |
| 398 | xmlTextReaderLocatorPtr locator); |
| 399 | XMLPUBFUN int XMLCALL |
| 400 | xmlTextReaderLocatorLineNumber(xmlTextReaderLocatorPtr locator); |
| 401 | /*int xmlTextReaderLocatorLinePosition(xmlTextReaderLocatorPtr locator);*/ |
| 402 | XMLPUBFUN xmlChar * XMLCALL |
| 403 | xmlTextReaderLocatorBaseURI (xmlTextReaderLocatorPtr locator); |
| 404 | XMLPUBFUN void XMLCALL |
| 405 | xmlTextReaderSetErrorHandler(xmlTextReaderPtr reader, |
| 406 | xmlTextReaderErrorFunc f, |
| 407 | void *arg); |
| 408 | XMLPUBFUN void XMLCALL |
| 409 | xmlTextReaderSetStructuredErrorHandler(xmlTextReaderPtr reader, |
| 410 | xmlStructuredErrorFunc f, |
| 411 | void *arg); |
| 412 | XMLPUBFUN void XMLCALL |
| 413 | xmlTextReaderGetErrorHandler(xmlTextReaderPtr reader, |
| 414 | xmlTextReaderErrorFunc *f, |
| 415 | void **arg); |
| 416 | |
| 417 | #endif /* LIBXML_READER_ENABLED */ |
| 418 | |
| 419 | #ifdef __cplusplus |
| 420 | } |
| 421 | #endif |
| 422 | |
| 423 | #endif /* __XML_XMLREADER_H__ */ |
| 424 | |