1 #include "Python.h" 2 #include <ctype.h> 3 4 #include "frameobject.h" 5 #include "expat.h" 6 7 #include "pyexpat.h" 8 9 #define XML_COMBINED_VERSION (10000*XML_MAJOR_VERSION+100*XML_MINOR_VERSION+XML_MICRO_VERSION) 10 11 #ifndef PyDoc_STRVAR 12 13 /* 14 * fdrake says: 15 * Don't change the PyDoc_STR macro definition to (str), because 16 * '''the parentheses cause compile failures 17 * ("non-constant static initializer" or something like that) 18 * on some platforms (Irix?)''' 19 */ 20 #define PyDoc_STR(str) str 21 #define PyDoc_VAR(name) static char name[] 22 #define PyDoc_STRVAR(name,str) PyDoc_VAR(name) = PyDoc_STR(str) 23 #endif 24 25 #if (PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION < 2) 26 /* In Python 2.0 and 2.1, disabling Unicode was not possible. */ 27 #define Py_USING_UNICODE 28 #else 29 #define FIX_TRACE 30 #endif 31 32 enum HandlerTypes { 33 StartElement, 34 EndElement, 35 ProcessingInstruction, 36 CharacterData, 37 UnparsedEntityDecl, 38 NotationDecl, 39 StartNamespaceDecl, 40 EndNamespaceDecl, 41 Comment, 42 StartCdataSection, 43 EndCdataSection, 44 Default, 45 DefaultHandlerExpand, 46 NotStandalone, 47 ExternalEntityRef, 48 StartDoctypeDecl, 49 EndDoctypeDecl, 50 EntityDecl, 51 XmlDecl, 52 ElementDecl, 53 AttlistDecl, 54 #if XML_COMBINED_VERSION >= 19504 55 SkippedEntity, 56 #endif 57 _DummyDecl 58 }; 59 60 static PyObject *ErrorObject; 61 62 /* ----------------------------------------------------- */ 63 64 /* Declarations for objects of type xmlparser */ 65 66 typedef struct { 67 PyObject_HEAD 68 69 XML_Parser itself; 70 int returns_unicode; /* True if Unicode strings are returned; 71 if false, UTF-8 strings are returned */ 72 int ordered_attributes; /* Return attributes as a list. */ 73 int specified_attributes; /* Report only specified attributes. */ 74 int in_callback; /* Is a callback active? */ 75 int ns_prefixes; /* Namespace-triplets mode? */ 76 XML_Char *buffer; /* Buffer used when accumulating characters */ 77 /* NULL if not enabled */ 78 int buffer_size; /* Size of buffer, in XML_Char units */ 79 int buffer_used; /* Buffer units in use */ 80 PyObject *intern; /* Dictionary to intern strings */ 81 PyObject **handlers; 82 } xmlparseobject; 83 84 #define CHARACTER_DATA_BUFFER_SIZE 8192 85 86 static PyTypeObject Xmlparsetype; 87 88 typedef void (*xmlhandlersetter)(XML_Parser self, void *meth); 89 typedef void* xmlhandler; 90 91 struct HandlerInfo { 92 const char *name; 93 xmlhandlersetter setter; 94 xmlhandler handler; 95 PyCodeObject *tb_code; 96 PyObject *nameobj; 97 }; 98 99 static struct HandlerInfo handler_info[64]; 100 101 /* Set an integer attribute on the error object; return true on success, 102 * false on an exception. 103 */ 104 static int 105 set_error_attr(PyObject *err, char *name, int value) 106 { 107 PyObject *v = PyInt_FromLong(value); 108 109 if (v == NULL || PyObject_SetAttrString(err, name, v) == -1) { 110 Py_XDECREF(v); 111 return 0; 112 } 113 Py_DECREF(v); 114 return 1; 115 } 116 117 /* Build and set an Expat exception, including positioning 118 * information. Always returns NULL. 119 */ 120 static PyObject * 121 set_error(xmlparseobject *self, enum XML_Error code) 122 { 123 PyObject *err; 124 char buffer[256]; 125 XML_Parser parser = self->itself; 126 int lineno = XML_GetErrorLineNumber(parser); 127 int column = XML_GetErrorColumnNumber(parser); 128 129 /* There is no risk of overflowing this buffer, since 130 even for 64-bit integers, there is sufficient space. */ 131 sprintf(buffer, "%.200s: line %i, column %i", 132 XML_ErrorString(code), lineno, column); 133 err = PyObject_CallFunction(ErrorObject, "s", buffer); 134 if ( err != NULL 135 && set_error_attr(err, "code", code) 136 && set_error_attr(err, "offset", column) 137 && set_error_attr(err, "lineno", lineno)) { 138 PyErr_SetObject(ErrorObject, err); 139 } 140 Py_XDECREF(err); 141 return NULL; 142 } 143 144 static int 145 have_handler(xmlparseobject *self, int type) 146 { 147 PyObject *handler = self->handlers[type]; 148 return handler != NULL; 149 } 150 151 static PyObject * 152 get_handler_name(struct HandlerInfo *hinfo) 153 { 154 PyObject *name = hinfo->nameobj; 155 if (name == NULL) { 156 name = PyString_FromString(hinfo->name); 157 hinfo->nameobj = name; 158 } 159 Py_XINCREF(name); 160 return name; 161 } 162 163 164 #ifdef Py_USING_UNICODE 165 /* Convert a string of XML_Chars into a Unicode string. 166 Returns None if str is a null pointer. */ 167 168 static PyObject * 169 conv_string_to_unicode(const XML_Char *str) 170 { 171 /* XXX currently this code assumes that XML_Char is 8-bit, 172 and hence in UTF-8. */ 173 /* UTF-8 from Expat, Unicode desired */ 174 if (str == NULL) { 175 Py_INCREF(Py_None); 176 return Py_None; 177 } 178 return PyUnicode_DecodeUTF8(str, strlen(str), "strict"); 179 } 180 181 static PyObject * 182 conv_string_len_to_unicode(const XML_Char *str, int len) 183 { 184 /* XXX currently this code assumes that XML_Char is 8-bit, 185 and hence in UTF-8. */ 186 /* UTF-8 from Expat, Unicode desired */ 187 if (str == NULL) { 188 Py_INCREF(Py_None); 189 return Py_None; 190 } 191 return PyUnicode_DecodeUTF8((const char *)str, len, "strict"); 192 } 193 #endif 194 195 /* Convert a string of XML_Chars into an 8-bit Python string. 196 Returns None if str is a null pointer. */ 197 198 static PyObject * 199 conv_string_to_utf8(const XML_Char *str) 200 { 201 /* XXX currently this code assumes that XML_Char is 8-bit, 202 and hence in UTF-8. */ 203 /* UTF-8 from Expat, UTF-8 desired */ 204 if (str == NULL) { 205 Py_INCREF(Py_None); 206 return Py_None; 207 } 208 return PyString_FromString(str); 209 } 210 211 static PyObject * 212 conv_string_len_to_utf8(const XML_Char *str, int len) 213 { 214 /* XXX currently this code assumes that XML_Char is 8-bit, 215 and hence in UTF-8. */ 216 /* UTF-8 from Expat, UTF-8 desired */ 217 if (str == NULL) { 218 Py_INCREF(Py_None); 219 return Py_None; 220 } 221 return PyString_FromStringAndSize((const char *)str, len); 222 } 223 224 /* Callback routines */ 225 226 static void clear_handlers(xmlparseobject *self, int initial); 227 228 /* This handler is used when an error has been detected, in the hope 229 that actual parsing can be terminated early. This will only help 230 if an external entity reference is encountered. */ 231 static int 232 error_external_entity_ref_handler(XML_Parser parser, 233 const XML_Char *context, 234 const XML_Char *base, 235 const XML_Char *systemId, 236 const XML_Char *publicId) 237 { 238 return 0; 239 } 240 241 /* Dummy character data handler used when an error (exception) has 242 been detected, and the actual parsing can be terminated early. 243 This is needed since character data handler can't be safely removed 244 from within the character data handler, but can be replaced. It is 245 used only from the character data handler trampoline, and must be 246 used right after `flag_error()` is called. */ 247 static void 248 noop_character_data_handler(void *userData, const XML_Char *data, int len) 249 { 250 /* Do nothing. */ 251 } 252 253 static void 254 flag_error(xmlparseobject *self) 255 { 256 clear_handlers(self, 0); 257 XML_SetExternalEntityRefHandler(self->itself, 258 error_external_entity_ref_handler); 259 } 260 261 static PyCodeObject* 262 getcode(enum HandlerTypes slot, char* func_name, int lineno) 263 { 264 if (handler_info[slot].tb_code == NULL) { 265 handler_info[slot].tb_code = 266 PyCode_NewEmpty(__FILE__, func_name, lineno); 267 } 268 return handler_info[slot].tb_code; 269 } 270 271 #ifdef FIX_TRACE 272 static int 273 trace_frame(PyThreadState *tstate, PyFrameObject *f, int code, PyObject *val) 274 { 275 int result = 0; 276 if (!tstate->use_tracing || tstate->tracing) 277 return 0; 278 if (tstate->c_profilefunc != NULL) { 279 tstate->tracing++; 280 result = tstate->c_profilefunc(tstate->c_profileobj, 281 f, code , val); 282 tstate->use_tracing = ((tstate->c_tracefunc != NULL) 283 || (tstate->c_profilefunc != NULL)); 284 tstate->tracing--; 285 if (result) 286 return result; 287 } 288 if (tstate->c_tracefunc != NULL) { 289 tstate->tracing++; 290 result = tstate->c_tracefunc(tstate->c_traceobj, 291 f, code , val); 292 tstate->use_tracing = ((tstate->c_tracefunc != NULL) 293 || (tstate->c_profilefunc != NULL)); 294 tstate->tracing--; 295 } 296 return result; 297 } 298 299 static int 300 trace_frame_exc(PyThreadState *tstate, PyFrameObject *f) 301 { 302 PyObject *type, *value, *traceback, *arg; 303 int err; 304 305 if (tstate->c_tracefunc == NULL) 306 return 0; 307 308 PyErr_Fetch(&type, &value, &traceback); 309 if (value == NULL) { 310 value = Py_None; 311 Py_INCREF(value); 312 } 313 #if PY_VERSION_HEX < 0x02040000 314 arg = Py_BuildValue("(OOO)", type, value, traceback); 315 #else 316 arg = PyTuple_Pack(3, type, value, traceback); 317 #endif 318 if (arg == NULL) { 319 PyErr_Restore(type, value, traceback); 320 return 0; 321 } 322 err = trace_frame(tstate, f, PyTrace_EXCEPTION, arg); 323 Py_DECREF(arg); 324 if (err == 0) 325 PyErr_Restore(type, value, traceback); 326 else { 327 Py_XDECREF(type); 328 Py_XDECREF(value); 329 Py_XDECREF(traceback); 330 } 331 return err; 332 } 333 #endif 334 335 static PyObject* 336 call_with_frame(PyCodeObject *c, PyObject* func, PyObject* args, 337 xmlparseobject *self) 338 { 339 PyThreadState *tstate = PyThreadState_GET(); 340 PyFrameObject *f; 341 PyObject *res; 342 343 if (c == NULL) 344 return NULL; 345 346 f = PyFrame_New(tstate, c, PyEval_GetGlobals(), NULL); 347 if (f == NULL) 348 return NULL; 349 tstate->frame = f; 350 #ifdef FIX_TRACE 351 if (trace_frame(tstate, f, PyTrace_CALL, Py_None) < 0) { 352 return NULL; 353 } 354 #endif 355 res = PyEval_CallObject(func, args); 356 if (res == NULL) { 357 if (tstate->curexc_traceback == NULL) 358 PyTraceBack_Here(f); 359 XML_StopParser(self->itself, XML_FALSE); 360 #ifdef FIX_TRACE 361 if (trace_frame_exc(tstate, f) < 0) { 362 return NULL; 363 } 364 } 365 else { 366 if (trace_frame(tstate, f, PyTrace_RETURN, res) < 0) { 367 Py_XDECREF(res); 368 res = NULL; 369 } 370 } 371 #else 372 } 373 #endif 374 tstate->frame = f->f_back; 375 Py_DECREF(f); 376 return res; 377 } 378 379 #ifndef Py_USING_UNICODE 380 #define STRING_CONV_FUNC conv_string_to_utf8 381 #else 382 /* Python 2.0 and later versions, when built with Unicode support */ 383 #define STRING_CONV_FUNC (self->returns_unicode \ 384 ? conv_string_to_unicode : conv_string_to_utf8) 385 #endif 386 387 static PyObject* 388 string_intern(xmlparseobject *self, const char* str) 389 { 390 PyObject *result = STRING_CONV_FUNC(str); 391 PyObject *value; 392 /* result can be NULL if the unicode conversion failed. */ 393 if (!result) 394 return result; 395 if (!self->intern) 396 return result; 397 value = PyDict_GetItem(self->intern, result); 398 if (!value) { 399 if (PyDict_SetItem(self->intern, result, result) == 0) 400 return result; 401 else 402 return NULL; 403 } 404 Py_INCREF(value); 405 Py_DECREF(result); 406 return value; 407 } 408 409 /* Return 0 on success, -1 on exception. 410 * flag_error() will be called before return if needed. 411 */ 412 static int 413 call_character_handler(xmlparseobject *self, const XML_Char *buffer, int len) 414 { 415 PyObject *args; 416 PyObject *temp; 417 418 if (!have_handler(self, CharacterData)) 419 return -1; 420 421 args = PyTuple_New(1); 422 if (args == NULL) 423 return -1; 424 #ifdef Py_USING_UNICODE 425 temp = (self->returns_unicode 426 ? conv_string_len_to_unicode(buffer, len) 427 : conv_string_len_to_utf8(buffer, len)); 428 #else 429 temp = conv_string_len_to_utf8(buffer, len); 430 #endif 431 if (temp == NULL) { 432 Py_DECREF(args); 433 flag_error(self); 434 XML_SetCharacterDataHandler(self->itself, 435 noop_character_data_handler); 436 return -1; 437 } 438 PyTuple_SET_ITEM(args, 0, temp); 439 /* temp is now a borrowed reference; consider it unused. */ 440 self->in_callback = 1; 441 temp = call_with_frame(getcode(CharacterData, "CharacterData", __LINE__), 442 self->handlers[CharacterData], args, self); 443 /* temp is an owned reference again, or NULL */ 444 self->in_callback = 0; 445 Py_DECREF(args); 446 if (temp == NULL) { 447 flag_error(self); 448 XML_SetCharacterDataHandler(self->itself, 449 noop_character_data_handler); 450 return -1; 451 } 452 Py_DECREF(temp); 453 return 0; 454 } 455 456 static int 457 flush_character_buffer(xmlparseobject *self) 458 { 459 int rc; 460 if (self->buffer == NULL || self->buffer_used == 0) 461 return 0; 462 rc = call_character_handler(self, self->buffer, self->buffer_used); 463 self->buffer_used = 0; 464 return rc; 465 } 466 467 static void 468 my_CharacterDataHandler(void *userData, const XML_Char *data, int len) 469 { 470 xmlparseobject *self = (xmlparseobject *) userData; 471 if (self->buffer == NULL) 472 call_character_handler(self, data, len); 473 else { 474 if ((self->buffer_used + len) > self->buffer_size) { 475 if (flush_character_buffer(self) < 0) 476 return; 477 /* handler might have changed; drop the rest on the floor 478 * if there isn't a handler anymore 479 */ 480 if (!have_handler(self, CharacterData)) 481 return; 482 } 483 if (len > self->buffer_size) { 484 call_character_handler(self, data, len); 485 self->buffer_used = 0; 486 } 487 else { 488 memcpy(self->buffer + self->buffer_used, 489 data, len * sizeof(XML_Char)); 490 self->buffer_used += len; 491 } 492 } 493 } 494 495 static void 496 my_StartElementHandler(void *userData, 497 const XML_Char *name, const XML_Char *atts[]) 498 { 499 xmlparseobject *self = (xmlparseobject *)userData; 500 501 if (have_handler(self, StartElement)) { 502 PyObject *container, *rv, *args; 503 int i, max; 504 505 if (flush_character_buffer(self) < 0) 506 return; 507 /* Set max to the number of slots filled in atts[]; max/2 is 508 * the number of attributes we need to process. 509 */ 510 if (self->specified_attributes) { 511 max = XML_GetSpecifiedAttributeCount(self->itself); 512 } 513 else { 514 max = 0; 515 while (atts[max] != NULL) 516 max += 2; 517 } 518 /* Build the container. */ 519 if (self->ordered_attributes) 520 container = PyList_New(max); 521 else 522 container = PyDict_New(); 523 if (container == NULL) { 524 flag_error(self); 525 return; 526 } 527 for (i = 0; i < max; i += 2) { 528 PyObject *n = string_intern(self, (XML_Char *) atts[i]); 529 PyObject *v; 530 if (n == NULL) { 531 flag_error(self); 532 Py_DECREF(container); 533 return; 534 } 535 v = STRING_CONV_FUNC((XML_Char *) atts[i+1]); 536 if (v == NULL) { 537 flag_error(self); 538 Py_DECREF(container); 539 Py_DECREF(n); 540 return; 541 } 542 if (self->ordered_attributes) { 543 PyList_SET_ITEM(container, i, n); 544 PyList_SET_ITEM(container, i+1, v); 545 } 546 else if (PyDict_SetItem(container, n, v)) { 547 flag_error(self); 548 Py_DECREF(n); 549 Py_DECREF(v); 550 return; 551 } 552 else { 553 Py_DECREF(n); 554 Py_DECREF(v); 555 } 556 } 557 args = string_intern(self, name); 558 if (args != NULL) 559 args = Py_BuildValue("(NN)", args, container); 560 if (args == NULL) { 561 Py_DECREF(container); 562 return; 563 } 564 /* Container is now a borrowed reference; ignore it. */ 565 self->in_callback = 1; 566 rv = call_with_frame(getcode(StartElement, "StartElement", __LINE__), 567 self->handlers[StartElement], args, self); 568 self->in_callback = 0; 569 Py_DECREF(args); 570 if (rv == NULL) { 571 flag_error(self); 572 return; 573 } 574 Py_DECREF(rv); 575 } 576 } 577 578 #define RC_HANDLER(RC, NAME, PARAMS, INIT, PARAM_FORMAT, CONVERSION, \ 579 RETURN, GETUSERDATA) \ 580 static RC \ 581 my_##NAME##Handler PARAMS {\ 582 xmlparseobject *self = GETUSERDATA ; \ 583 PyObject *args = NULL; \ 584 PyObject *rv = NULL; \ 585 INIT \ 586 \ 587 if (have_handler(self, NAME)) { \ 588 if (flush_character_buffer(self) < 0) \ 589 return RETURN; \ 590 args = Py_BuildValue PARAM_FORMAT ;\ 591 if (!args) { flag_error(self); return RETURN;} \ 592 self->in_callback = 1; \ 593 rv = call_with_frame(getcode(NAME,#NAME,__LINE__), \ 594 self->handlers[NAME], args, self); \ 595 self->in_callback = 0; \ 596 Py_DECREF(args); \ 597 if (rv == NULL) { \ 598 flag_error(self); \ 599 return RETURN; \ 600 } \ 601 CONVERSION \ 602 Py_DECREF(rv); \ 603 } \ 604 return RETURN; \ 605 } 606 607 #define VOID_HANDLER(NAME, PARAMS, PARAM_FORMAT) \ 608 RC_HANDLER(void, NAME, PARAMS, ;, PARAM_FORMAT, ;, ;,\ 609 (xmlparseobject *)userData) 610 611 #define INT_HANDLER(NAME, PARAMS, PARAM_FORMAT)\ 612 RC_HANDLER(int, NAME, PARAMS, int rc=0;, PARAM_FORMAT, \ 613 rc = PyInt_AsLong(rv);, rc, \ 614 (xmlparseobject *)userData) 615 616 VOID_HANDLER(EndElement, 617 (void *userData, const XML_Char *name), 618 ("(N)", string_intern(self, name))) 619 620 VOID_HANDLER(ProcessingInstruction, 621 (void *userData, 622 const XML_Char *target, 623 const XML_Char *data), 624 ("(NO&)", string_intern(self, target), STRING_CONV_FUNC,data)) 625 626 VOID_HANDLER(UnparsedEntityDecl, 627 (void *userData, 628 const XML_Char *entityName, 629 const XML_Char *base, 630 const XML_Char *systemId, 631 const XML_Char *publicId, 632 const XML_Char *notationName), 633 ("(NNNNN)", 634 string_intern(self, entityName), string_intern(self, base), 635 string_intern(self, systemId), string_intern(self, publicId), 636 string_intern(self, notationName))) 637 638 #ifndef Py_USING_UNICODE 639 VOID_HANDLER(EntityDecl, 640 (void *userData, 641 const XML_Char *entityName, 642 int is_parameter_entity, 643 const XML_Char *value, 644 int value_length, 645 const XML_Char *base, 646 const XML_Char *systemId, 647 const XML_Char *publicId, 648 const XML_Char *notationName), 649 ("NiNNNNN", 650 string_intern(self, entityName), is_parameter_entity, 651 conv_string_len_to_utf8(value, value_length), 652 string_intern(self, base), string_intern(self, systemId), 653 string_intern(self, publicId), 654 string_intern(self, notationName))) 655 #else 656 VOID_HANDLER(EntityDecl, 657 (void *userData, 658 const XML_Char *entityName, 659 int is_parameter_entity, 660 const XML_Char *value, 661 int value_length, 662 const XML_Char *base, 663 const XML_Char *systemId, 664 const XML_Char *publicId, 665 const XML_Char *notationName), 666 ("NiNNNNN", 667 string_intern(self, entityName), is_parameter_entity, 668 (self->returns_unicode 669 ? conv_string_len_to_unicode(value, value_length) 670 : conv_string_len_to_utf8(value, value_length)), 671 string_intern(self, base), string_intern(self, systemId), 672 string_intern(self, publicId), 673 string_intern(self, notationName))) 674 #endif 675 676 VOID_HANDLER(XmlDecl, 677 (void *userData, 678 const XML_Char *version, 679 const XML_Char *encoding, 680 int standalone), 681 ("(O&O&i)", 682 STRING_CONV_FUNC,version, STRING_CONV_FUNC,encoding, 683 standalone)) 684 685 static PyObject * 686 conv_content_model(XML_Content * const model, 687 PyObject *(*conv_string)(const XML_Char *)) 688 { 689 PyObject *result = NULL; 690 PyObject *children = PyTuple_New(model->numchildren); 691 int i; 692 693 if (children != NULL) { 694 assert(model->numchildren < INT_MAX); 695 for (i = 0; i < (int)model->numchildren; ++i) { 696 PyObject *child = conv_content_model(&model->children[i], 697 conv_string); 698 if (child == NULL) { 699 Py_XDECREF(children); 700 return NULL; 701 } 702 PyTuple_SET_ITEM(children, i, child); 703 } 704 result = Py_BuildValue("(iiO&N)", 705 model->type, model->quant, 706 conv_string,model->name, children); 707 } 708 return result; 709 } 710 711 static void 712 my_ElementDeclHandler(void *userData, 713 const XML_Char *name, 714 XML_Content *model) 715 { 716 xmlparseobject *self = (xmlparseobject *)userData; 717 PyObject *args = NULL; 718 719 if (have_handler(self, ElementDecl)) { 720 PyObject *rv = NULL; 721 PyObject *modelobj, *nameobj; 722 723 if (flush_character_buffer(self) < 0) 724 goto finally; 725 #ifdef Py_USING_UNICODE 726 modelobj = conv_content_model(model, 727 (self->returns_unicode 728 ? conv_string_to_unicode 729 : conv_string_to_utf8)); 730 #else 731 modelobj = conv_content_model(model, conv_string_to_utf8); 732 #endif 733 if (modelobj == NULL) { 734 flag_error(self); 735 goto finally; 736 } 737 nameobj = string_intern(self, name); 738 if (nameobj == NULL) { 739 Py_DECREF(modelobj); 740 flag_error(self); 741 goto finally; 742 } 743 args = Py_BuildValue("NN", nameobj, modelobj); 744 if (args == NULL) { 745 Py_DECREF(modelobj); 746 flag_error(self); 747 goto finally; 748 } 749 self->in_callback = 1; 750 rv = call_with_frame(getcode(ElementDecl, "ElementDecl", __LINE__), 751 self->handlers[ElementDecl], args, self); 752 self->in_callback = 0; 753 if (rv == NULL) { 754 flag_error(self); 755 goto finally; 756 } 757 Py_DECREF(rv); 758 } 759 finally: 760 Py_XDECREF(args); 761 XML_FreeContentModel(self->itself, model); 762 return; 763 } 764 765 VOID_HANDLER(AttlistDecl, 766 (void *userData, 767 const XML_Char *elname, 768 const XML_Char *attname, 769 const XML_Char *att_type, 770 const XML_Char *dflt, 771 int isrequired), 772 ("(NNO&O&i)", 773 string_intern(self, elname), string_intern(self, attname), 774 STRING_CONV_FUNC,att_type, STRING_CONV_FUNC,dflt, 775 isrequired)) 776 777 #if XML_COMBINED_VERSION >= 19504 778 VOID_HANDLER(SkippedEntity, 779 (void *userData, 780 const XML_Char *entityName, 781 int is_parameter_entity), 782 ("Ni", 783 string_intern(self, entityName), is_parameter_entity)) 784 #endif 785 786 VOID_HANDLER(NotationDecl, 787 (void *userData, 788 const XML_Char *notationName, 789 const XML_Char *base, 790 const XML_Char *systemId, 791 const XML_Char *publicId), 792 ("(NNNN)", 793 string_intern(self, notationName), string_intern(self, base), 794 string_intern(self, systemId), string_intern(self, publicId))) 795 796 VOID_HANDLER(StartNamespaceDecl, 797 (void *userData, 798 const XML_Char *prefix, 799 const XML_Char *uri), 800 ("(NN)", 801 string_intern(self, prefix), string_intern(self, uri))) 802 803 VOID_HANDLER(EndNamespaceDecl, 804 (void *userData, 805 const XML_Char *prefix), 806 ("(N)", string_intern(self, prefix))) 807 808 VOID_HANDLER(Comment, 809 (void *userData, const XML_Char *data), 810 ("(O&)", STRING_CONV_FUNC,data)) 811 812 VOID_HANDLER(StartCdataSection, 813 (void *userData), 814 ("()")) 815 816 VOID_HANDLER(EndCdataSection, 817 (void *userData), 818 ("()")) 819 820 #ifndef Py_USING_UNICODE 821 VOID_HANDLER(Default, 822 (void *userData, const XML_Char *s, int len), 823 ("(N)", conv_string_len_to_utf8(s,len))) 824 825 VOID_HANDLER(DefaultHandlerExpand, 826 (void *userData, const XML_Char *s, int len), 827 ("(N)", conv_string_len_to_utf8(s,len))) 828 #else 829 VOID_HANDLER(Default, 830 (void *userData, const XML_Char *s, int len), 831 ("(N)", (self->returns_unicode 832 ? conv_string_len_to_unicode(s,len) 833 : conv_string_len_to_utf8(s,len)))) 834 835 VOID_HANDLER(DefaultHandlerExpand, 836 (void *userData, const XML_Char *s, int len), 837 ("(N)", (self->returns_unicode 838 ? conv_string_len_to_unicode(s,len) 839 : conv_string_len_to_utf8(s,len)))) 840 #endif 841 842 INT_HANDLER(NotStandalone, 843 (void *userData), 844 ("()")) 845 846 RC_HANDLER(int, ExternalEntityRef, 847 (XML_Parser parser, 848 const XML_Char *context, 849 const XML_Char *base, 850 const XML_Char *systemId, 851 const XML_Char *publicId), 852 int rc=0;, 853 ("(O&NNN)", 854 STRING_CONV_FUNC,context, string_intern(self, base), 855 string_intern(self, systemId), string_intern(self, publicId)), 856 rc = PyInt_AsLong(rv);, rc, 857 XML_GetUserData(parser)) 858 859 /* XXX UnknownEncodingHandler */ 860 861 VOID_HANDLER(StartDoctypeDecl, 862 (void *userData, const XML_Char *doctypeName, 863 const XML_Char *sysid, const XML_Char *pubid, 864 int has_internal_subset), 865 ("(NNNi)", string_intern(self, doctypeName), 866 string_intern(self, sysid), string_intern(self, pubid), 867 has_internal_subset)) 868 869 VOID_HANDLER(EndDoctypeDecl, (void *userData), ("()")) 870 871 /* ---------------------------------------------------------------- */ 872 873 static PyObject * 874 get_parse_result(xmlparseobject *self, int rv) 875 { 876 if (PyErr_Occurred()) { 877 return NULL; 878 } 879 if (rv == 0) { 880 return set_error(self, XML_GetErrorCode(self->itself)); 881 } 882 if (flush_character_buffer(self) < 0) { 883 return NULL; 884 } 885 return PyInt_FromLong(rv); 886 } 887 888 PyDoc_STRVAR(xmlparse_Parse__doc__, 889 "Parse(data[, isfinal])\n\ 890 Parse XML data. `isfinal' should be true at end of input."); 891 892 static PyObject * 893 xmlparse_Parse(xmlparseobject *self, PyObject *args) 894 { 895 char *s; 896 int slen; 897 int isFinal = 0; 898 899 if (!PyArg_ParseTuple(args, "s#|i:Parse", &s, &slen, &isFinal)) 900 return NULL; 901 902 return get_parse_result(self, XML_Parse(self->itself, s, slen, isFinal)); 903 } 904 905 /* File reading copied from cPickle */ 906 907 #define BUF_SIZE 2048 908 909 static int 910 readinst(char *buf, int buf_size, PyObject *meth) 911 { 912 PyObject *arg = NULL; 913 PyObject *bytes = NULL; 914 PyObject *str = NULL; 915 int len = -1; 916 917 if ((bytes = PyInt_FromLong(buf_size)) == NULL) 918 goto finally; 919 920 if ((arg = PyTuple_New(1)) == NULL) { 921 Py_DECREF(bytes); 922 goto finally; 923 } 924 925 PyTuple_SET_ITEM(arg, 0, bytes); 926 927 #if PY_VERSION_HEX < 0x02020000 928 str = PyObject_CallObject(meth, arg); 929 #else 930 str = PyObject_Call(meth, arg, NULL); 931 #endif 932 if (str == NULL) 933 goto finally; 934 935 /* XXX what to do if it returns a Unicode string? */ 936 if (!PyString_Check(str)) { 937 PyErr_Format(PyExc_TypeError, 938 "read() did not return a string object (type=%.400s)", 939 Py_TYPE(str)->tp_name); 940 goto finally; 941 } 942 len = PyString_GET_SIZE(str); 943 if (len > buf_size) { 944 PyErr_Format(PyExc_ValueError, 945 "read() returned too much data: " 946 "%i bytes requested, %i returned", 947 buf_size, len); 948 goto finally; 949 } 950 memcpy(buf, PyString_AsString(str), len); 951 finally: 952 Py_XDECREF(arg); 953 Py_XDECREF(str); 954 return len; 955 } 956 957 PyDoc_STRVAR(xmlparse_ParseFile__doc__, 958 "ParseFile(file)\n\ 959 Parse XML data from file-like object."); 960 961 static PyObject * 962 xmlparse_ParseFile(xmlparseobject *self, PyObject *f) 963 { 964 int rv = 1; 965 PyObject *readmethod = NULL; 966 967 readmethod = PyObject_GetAttrString(f, "read"); 968 if (readmethod == NULL) { 969 PyErr_SetString(PyExc_TypeError, 970 "argument must have 'read' attribute"); 971 return NULL; 972 973 } 974 for (;;) { 975 int bytes_read; 976 void *buf = XML_GetBuffer(self->itself, BUF_SIZE); 977 if (buf == NULL) { 978 Py_XDECREF(readmethod); 979 return get_parse_result(self, 0); 980 } 981 982 bytes_read = readinst(buf, BUF_SIZE, readmethod); 983 if (bytes_read < 0) { 984 Py_XDECREF(readmethod); 985 return NULL; 986 } 987 988 rv = XML_ParseBuffer(self->itself, bytes_read, bytes_read == 0); 989 if (PyErr_Occurred()) { 990 Py_XDECREF(readmethod); 991 return NULL; 992 } 993 994 if (!rv || bytes_read == 0) 995 break; 996 } 997 Py_XDECREF(readmethod); 998 return get_parse_result(self, rv); 999 } 1000 1001 PyDoc_STRVAR(xmlparse_SetBase__doc__, 1002 "SetBase(base_url)\n\ 1003 Set the base URL for the parser."); 1004 1005 static PyObject * 1006 xmlparse_SetBase(xmlparseobject *self, PyObject *args) 1007 { 1008 char *base; 1009 1010 if (!PyArg_ParseTuple(args, "s:SetBase", &base)) 1011 return NULL; 1012 if (!XML_SetBase(self->itself, base)) { 1013 return PyErr_NoMemory(); 1014 } 1015 Py_INCREF(Py_None); 1016 return Py_None; 1017 } 1018 1019 PyDoc_STRVAR(xmlparse_GetBase__doc__, 1020 "GetBase() -> url\n\ 1021 Return base URL string for the parser."); 1022 1023 static PyObject * 1024 xmlparse_GetBase(xmlparseobject *self, PyObject *unused) 1025 { 1026 return Py_BuildValue("z", XML_GetBase(self->itself)); 1027 } 1028 1029 PyDoc_STRVAR(xmlparse_GetInputContext__doc__, 1030 "GetInputContext() -> string\n\ 1031 Return the untranslated text of the input that caused the current event.\n\ 1032 If the event was generated by a large amount of text (such as a start tag\n\ 1033 for an element with many attributes), not all of the text may be available."); 1034 1035 static PyObject * 1036 xmlparse_GetInputContext(xmlparseobject *self, PyObject *unused) 1037 { 1038 if (self->in_callback) { 1039 int offset, size; 1040 const char *buffer 1041 = XML_GetInputContext(self->itself, &offset, &size); 1042 1043 if (buffer != NULL) 1044 return PyString_FromStringAndSize(buffer + offset, 1045 size - offset); 1046 else 1047 Py_RETURN_NONE; 1048 } 1049 else 1050 Py_RETURN_NONE; 1051 } 1052 1053 PyDoc_STRVAR(xmlparse_ExternalEntityParserCreate__doc__, 1054 "ExternalEntityParserCreate(context[, encoding])\n\ 1055 Create a parser for parsing an external entity based on the\n\ 1056 information passed to the ExternalEntityRefHandler."); 1057 1058 static PyObject * 1059 xmlparse_ExternalEntityParserCreate(xmlparseobject *self, PyObject *args) 1060 { 1061 char *context; 1062 char *encoding = NULL; 1063 xmlparseobject *new_parser; 1064 int i; 1065 1066 if (!PyArg_ParseTuple(args, "z|s:ExternalEntityParserCreate", 1067 &context, &encoding)) { 1068 return NULL; 1069 } 1070 1071 #ifndef Py_TPFLAGS_HAVE_GC 1072 /* Python versions 2.0 and 2.1 */ 1073 new_parser = PyObject_New(xmlparseobject, &Xmlparsetype); 1074 #else 1075 /* Python versions 2.2 and later */ 1076 new_parser = PyObject_GC_New(xmlparseobject, &Xmlparsetype); 1077 #endif 1078 1079 if (new_parser == NULL) 1080 return NULL; 1081 new_parser->buffer_size = self->buffer_size; 1082 new_parser->buffer_used = 0; 1083 if (self->buffer != NULL) { 1084 new_parser->buffer = malloc(new_parser->buffer_size); 1085 if (new_parser->buffer == NULL) { 1086 #ifndef Py_TPFLAGS_HAVE_GC 1087 /* Code for versions 2.0 and 2.1 */ 1088 PyObject_Del(new_parser); 1089 #else 1090 /* Code for versions 2.2 and later. */ 1091 PyObject_GC_Del(new_parser); 1092 #endif 1093 return PyErr_NoMemory(); 1094 } 1095 } 1096 else 1097 new_parser->buffer = NULL; 1098 new_parser->returns_unicode = self->returns_unicode; 1099 new_parser->ordered_attributes = self->ordered_attributes; 1100 new_parser->specified_attributes = self->specified_attributes; 1101 new_parser->in_callback = 0; 1102 new_parser->ns_prefixes = self->ns_prefixes; 1103 new_parser->itself = XML_ExternalEntityParserCreate(self->itself, context, 1104 encoding); 1105 new_parser->handlers = 0; 1106 new_parser->intern = self->intern; 1107 Py_XINCREF(new_parser->intern); 1108 #ifdef Py_TPFLAGS_HAVE_GC 1109 PyObject_GC_Track(new_parser); 1110 #else 1111 PyObject_GC_Init(new_parser); 1112 #endif 1113 1114 if (!new_parser->itself) { 1115 Py_DECREF(new_parser); 1116 return PyErr_NoMemory(); 1117 } 1118 1119 XML_SetUserData(new_parser->itself, (void *)new_parser); 1120 1121 /* allocate and clear handlers first */ 1122 for (i = 0; handler_info[i].name != NULL; i++) 1123 /* do nothing */; 1124 1125 new_parser->handlers = malloc(sizeof(PyObject *) * i); 1126 if (!new_parser->handlers) { 1127 Py_DECREF(new_parser); 1128 return PyErr_NoMemory(); 1129 } 1130 clear_handlers(new_parser, 1); 1131 1132 /* then copy handlers from self */ 1133 for (i = 0; handler_info[i].name != NULL; i++) { 1134 PyObject *handler = self->handlers[i]; 1135 if (handler != NULL) { 1136 Py_INCREF(handler); 1137 new_parser->handlers[i] = handler; 1138 handler_info[i].setter(new_parser->itself, 1139 handler_info[i].handler); 1140 } 1141 } 1142 return (PyObject *)new_parser; 1143 } 1144 1145 PyDoc_STRVAR(xmlparse_SetParamEntityParsing__doc__, 1146 "SetParamEntityParsing(flag) -> success\n\ 1147 Controls parsing of parameter entities (including the external DTD\n\ 1148 subset). Possible flag values are XML_PARAM_ENTITY_PARSING_NEVER,\n\ 1149 XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE and\n\ 1150 XML_PARAM_ENTITY_PARSING_ALWAYS. Returns true if setting the flag\n\ 1151 was successful."); 1152 1153 static PyObject* 1154 xmlparse_SetParamEntityParsing(xmlparseobject *p, PyObject* args) 1155 { 1156 int flag; 1157 if (!PyArg_ParseTuple(args, "i", &flag)) 1158 return NULL; 1159 flag = XML_SetParamEntityParsing(p->itself, flag); 1160 return PyInt_FromLong(flag); 1161 } 1162 1163 1164 #if XML_COMBINED_VERSION >= 19505 1165 PyDoc_STRVAR(xmlparse_UseForeignDTD__doc__, 1166 "UseForeignDTD([flag])\n\ 1167 Allows the application to provide an artificial external subset if one is\n\ 1168 not specified as part of the document instance. This readily allows the\n\ 1169 use of a 'default' document type controlled by the application, while still\n\ 1170 getting the advantage of providing document type information to the parser.\n\ 1171 'flag' defaults to True if not provided."); 1172 1173 static PyObject * 1174 xmlparse_UseForeignDTD(xmlparseobject *self, PyObject *args) 1175 { 1176 PyObject *flagobj = NULL; 1177 int flag = 1; 1178 enum XML_Error rc; 1179 if (!PyArg_ParseTuple(args, "|O:UseForeignDTD", &flagobj)) 1180 return NULL; 1181 if (flagobj != NULL) { 1182 flag = PyObject_IsTrue(flagobj); 1183 if (flag < 0) 1184 return NULL; 1185 } 1186 rc = XML_UseForeignDTD(self->itself, flag ? XML_TRUE : XML_FALSE); 1187 if (rc != XML_ERROR_NONE) { 1188 return set_error(self, rc); 1189 } 1190 Py_INCREF(Py_None); 1191 return Py_None; 1192 } 1193 #endif 1194 1195 static struct PyMethodDef xmlparse_methods[] = { 1196 {"Parse", (PyCFunction)xmlparse_Parse, 1197 METH_VARARGS, xmlparse_Parse__doc__}, 1198 {"ParseFile", (PyCFunction)xmlparse_ParseFile, 1199 METH_O, xmlparse_ParseFile__doc__}, 1200 {"SetBase", (PyCFunction)xmlparse_SetBase, 1201 METH_VARARGS, xmlparse_SetBase__doc__}, 1202 {"GetBase", (PyCFunction)xmlparse_GetBase, 1203 METH_NOARGS, xmlparse_GetBase__doc__}, 1204 {"ExternalEntityParserCreate", (PyCFunction)xmlparse_ExternalEntityParserCreate, 1205 METH_VARARGS, xmlparse_ExternalEntityParserCreate__doc__}, 1206 {"SetParamEntityParsing", (PyCFunction)xmlparse_SetParamEntityParsing, 1207 METH_VARARGS, xmlparse_SetParamEntityParsing__doc__}, 1208 {"GetInputContext", (PyCFunction)xmlparse_GetInputContext, 1209 METH_NOARGS, xmlparse_GetInputContext__doc__}, 1210 #if XML_COMBINED_VERSION >= 19505 1211 {"UseForeignDTD", (PyCFunction)xmlparse_UseForeignDTD, 1212 METH_VARARGS, xmlparse_UseForeignDTD__doc__}, 1213 #endif 1214 {NULL, NULL} /* sentinel */ 1215 }; 1216 1217 /* ---------- */ 1218 1219 1220 #ifdef Py_USING_UNICODE 1221 1222 /* pyexpat international encoding support. 1223 Make it as simple as possible. 1224 */ 1225 1226 static char template_buffer[257]; 1227 PyObject *template_string = NULL; 1228 1229 static void 1230 init_template_buffer(void) 1231 { 1232 int i; 1233 for (i = 0; i < 256; i++) { 1234 template_buffer[i] = i; 1235 } 1236 template_buffer[256] = 0; 1237 } 1238 1239 static int 1240 PyUnknownEncodingHandler(void *encodingHandlerData, 1241 const XML_Char *name, 1242 XML_Encoding *info) 1243 { 1244 PyUnicodeObject *_u_string = NULL; 1245 int result = 0; 1246 int i; 1247 1248 /* Yes, supports only 8bit encodings */ 1249 _u_string = (PyUnicodeObject *) 1250 PyUnicode_Decode(template_buffer, 256, name, "replace"); 1251 1252 if (_u_string == NULL) 1253 return result; 1254 1255 if (PyUnicode_GET_SIZE(_u_string) != 256) { 1256 Py_DECREF(_u_string); 1257 PyErr_SetString(PyExc_ValueError, 1258 "multi-byte encodings are not supported"); 1259 return result; 1260 } 1261 1262 for (i = 0; i < 256; i++) { 1263 /* Stupid to access directly, but fast */ 1264 Py_UNICODE c = _u_string->str[i]; 1265 if (c == Py_UNICODE_REPLACEMENT_CHARACTER) 1266 info->map[i] = -1; 1267 else 1268 info->map[i] = c; 1269 } 1270 info->data = NULL; 1271 info->convert = NULL; 1272 info->release = NULL; 1273 result = 1; 1274 Py_DECREF(_u_string); 1275 return result; 1276 } 1277 1278 #endif 1279 1280 static PyObject * 1281 newxmlparseobject(char *encoding, char *namespace_separator, PyObject *intern) 1282 { 1283 int i; 1284 xmlparseobject *self; 1285 1286 #ifdef Py_TPFLAGS_HAVE_GC 1287 /* Code for versions 2.2 and later */ 1288 self = PyObject_GC_New(xmlparseobject, &Xmlparsetype); 1289 #else 1290 self = PyObject_New(xmlparseobject, &Xmlparsetype); 1291 #endif 1292 if (self == NULL) 1293 return NULL; 1294 1295 #ifdef Py_USING_UNICODE 1296 self->returns_unicode = 1; 1297 #else 1298 self->returns_unicode = 0; 1299 #endif 1300 1301 self->buffer = NULL; 1302 self->buffer_size = CHARACTER_DATA_BUFFER_SIZE; 1303 self->buffer_used = 0; 1304 self->ordered_attributes = 0; 1305 self->specified_attributes = 0; 1306 self->in_callback = 0; 1307 self->ns_prefixes = 0; 1308 self->handlers = NULL; 1309 if (namespace_separator != NULL) { 1310 self->itself = XML_ParserCreateNS(encoding, *namespace_separator); 1311 } 1312 else { 1313 self->itself = XML_ParserCreate(encoding); 1314 } 1315 #if ((XML_MAJOR_VERSION >= 2) && (XML_MINOR_VERSION >= 1)) || defined(XML_HAS_SET_HASH_SALT) 1316 /* This feature was added upstream in libexpat 2.1.0. Our expat copy 1317 * has a backport of this feature where we also define XML_HAS_SET_HASH_SALT 1318 * to indicate that we can still use it. */ 1319 XML_SetHashSalt(self->itself, 1320 (unsigned long)_Py_HashSecret.prefix); 1321 #endif 1322 self->intern = intern; 1323 Py_XINCREF(self->intern); 1324 #ifdef Py_TPFLAGS_HAVE_GC 1325 PyObject_GC_Track(self); 1326 #else 1327 PyObject_GC_Init(self); 1328 #endif 1329 if (self->itself == NULL) { 1330 PyErr_SetString(PyExc_RuntimeError, 1331 "XML_ParserCreate failed"); 1332 Py_DECREF(self); 1333 return NULL; 1334 } 1335 XML_SetUserData(self->itself, (void *)self); 1336 #ifdef Py_USING_UNICODE 1337 XML_SetUnknownEncodingHandler(self->itself, 1338 (XML_UnknownEncodingHandler) PyUnknownEncodingHandler, NULL); 1339 #endif 1340 1341 for (i = 0; handler_info[i].name != NULL; i++) 1342 /* do nothing */; 1343 1344 self->handlers = malloc(sizeof(PyObject *) * i); 1345 if (!self->handlers) { 1346 Py_DECREF(self); 1347 return PyErr_NoMemory(); 1348 } 1349 clear_handlers(self, 1); 1350 1351 return (PyObject*)self; 1352 } 1353 1354 1355 static void 1356 xmlparse_dealloc(xmlparseobject *self) 1357 { 1358 int i; 1359 #ifdef Py_TPFLAGS_HAVE_GC 1360 PyObject_GC_UnTrack(self); 1361 #else 1362 PyObject_GC_Fini(self); 1363 #endif 1364 if (self->itself != NULL) 1365 XML_ParserFree(self->itself); 1366 self->itself = NULL; 1367 1368 if (self->handlers != NULL) { 1369 PyObject *temp; 1370 for (i = 0; handler_info[i].name != NULL; i++) { 1371 temp = self->handlers[i]; 1372 self->handlers[i] = NULL; 1373 Py_XDECREF(temp); 1374 } 1375 free(self->handlers); 1376 self->handlers = NULL; 1377 } 1378 if (self->buffer != NULL) { 1379 free(self->buffer); 1380 self->buffer = NULL; 1381 } 1382 Py_XDECREF(self->intern); 1383 #ifndef Py_TPFLAGS_HAVE_GC 1384 /* Code for versions 2.0 and 2.1 */ 1385 PyObject_Del(self); 1386 #else 1387 /* Code for versions 2.2 and later. */ 1388 PyObject_GC_Del(self); 1389 #endif 1390 } 1391 1392 static int 1393 handlername2int(const char *name) 1394 { 1395 int i; 1396 for (i = 0; handler_info[i].name != NULL; i++) { 1397 if (strcmp(name, handler_info[i].name) == 0) { 1398 return i; 1399 } 1400 } 1401 return -1; 1402 } 1403 1404 static PyObject * 1405 get_pybool(int istrue) 1406 { 1407 PyObject *result = istrue ? Py_True : Py_False; 1408 Py_INCREF(result); 1409 return result; 1410 } 1411 1412 static PyObject * 1413 xmlparse_getattr(xmlparseobject *self, char *name) 1414 { 1415 int handlernum = handlername2int(name); 1416 1417 if (handlernum != -1) { 1418 PyObject *result = self->handlers[handlernum]; 1419 if (result == NULL) 1420 result = Py_None; 1421 Py_INCREF(result); 1422 return result; 1423 } 1424 if (name[0] == 'E') { 1425 if (strcmp(name, "ErrorCode") == 0) 1426 return PyInt_FromLong((long) 1427 XML_GetErrorCode(self->itself)); 1428 if (strcmp(name, "ErrorLineNumber") == 0) 1429 return PyInt_FromLong((long) 1430 XML_GetErrorLineNumber(self->itself)); 1431 if (strcmp(name, "ErrorColumnNumber") == 0) 1432 return PyInt_FromLong((long) 1433 XML_GetErrorColumnNumber(self->itself)); 1434 if (strcmp(name, "ErrorByteIndex") == 0) 1435 return PyInt_FromLong((long) 1436 XML_GetErrorByteIndex(self->itself)); 1437 } 1438 if (name[0] == 'C') { 1439 if (strcmp(name, "CurrentLineNumber") == 0) 1440 return PyInt_FromLong((long) 1441 XML_GetCurrentLineNumber(self->itself)); 1442 if (strcmp(name, "CurrentColumnNumber") == 0) 1443 return PyInt_FromLong((long) 1444 XML_GetCurrentColumnNumber(self->itself)); 1445 if (strcmp(name, "CurrentByteIndex") == 0) 1446 return PyInt_FromLong((long) 1447 XML_GetCurrentByteIndex(self->itself)); 1448 } 1449 if (name[0] == 'b') { 1450 if (strcmp(name, "buffer_size") == 0) 1451 return PyInt_FromLong((long) self->buffer_size); 1452 if (strcmp(name, "buffer_text") == 0) 1453 return get_pybool(self->buffer != NULL); 1454 if (strcmp(name, "buffer_used") == 0) 1455 return PyInt_FromLong((long) self->buffer_used); 1456 } 1457 if (strcmp(name, "namespace_prefixes") == 0) 1458 return get_pybool(self->ns_prefixes); 1459 if (strcmp(name, "ordered_attributes") == 0) 1460 return get_pybool(self->ordered_attributes); 1461 if (strcmp(name, "returns_unicode") == 0) 1462 return get_pybool((long) self->returns_unicode); 1463 if (strcmp(name, "specified_attributes") == 0) 1464 return get_pybool((long) self->specified_attributes); 1465 if (strcmp(name, "intern") == 0) { 1466 if (self->intern == NULL) { 1467 Py_INCREF(Py_None); 1468 return Py_None; 1469 } 1470 else { 1471 Py_INCREF(self->intern); 1472 return self->intern; 1473 } 1474 } 1475 1476 #define APPEND(list, str) \ 1477 do { \ 1478 PyObject *o = PyString_FromString(str); \ 1479 if (o != NULL) \ 1480 PyList_Append(list, o); \ 1481 Py_XDECREF(o); \ 1482 } while (0) 1483 1484 if (strcmp(name, "__members__") == 0) { 1485 int i; 1486 PyObject *rc = PyList_New(0); 1487 if (!rc) 1488 return NULL; 1489 for (i = 0; handler_info[i].name != NULL; i++) { 1490 PyObject *o = get_handler_name(&handler_info[i]); 1491 if (o != NULL) 1492 PyList_Append(rc, o); 1493 Py_XDECREF(o); 1494 } 1495 APPEND(rc, "ErrorCode"); 1496 APPEND(rc, "ErrorLineNumber"); 1497 APPEND(rc, "ErrorColumnNumber"); 1498 APPEND(rc, "ErrorByteIndex"); 1499 APPEND(rc, "CurrentLineNumber"); 1500 APPEND(rc, "CurrentColumnNumber"); 1501 APPEND(rc, "CurrentByteIndex"); 1502 APPEND(rc, "buffer_size"); 1503 APPEND(rc, "buffer_text"); 1504 APPEND(rc, "buffer_used"); 1505 APPEND(rc, "namespace_prefixes"); 1506 APPEND(rc, "ordered_attributes"); 1507 APPEND(rc, "returns_unicode"); 1508 APPEND(rc, "specified_attributes"); 1509 APPEND(rc, "intern"); 1510 1511 #undef APPEND 1512 return rc; 1513 } 1514 return Py_FindMethod(xmlparse_methods, (PyObject *)self, name); 1515 } 1516 1517 static int 1518 sethandler(xmlparseobject *self, const char *name, PyObject* v) 1519 { 1520 int handlernum = handlername2int(name); 1521 if (handlernum >= 0) { 1522 xmlhandler c_handler = NULL; 1523 PyObject *temp = self->handlers[handlernum]; 1524 1525 if (v == Py_None) { 1526 /* If this is the character data handler, and a character 1527 data handler is already active, we need to be more 1528 careful. What we can safely do is replace the existing 1529 character data handler callback function with a no-op 1530 function that will refuse to call Python. The downside 1531 is that this doesn't completely remove the character 1532 data handler from the C layer if there's any callback 1533 active, so Expat does a little more work than it 1534 otherwise would, but that's really an odd case. A more 1535 elaborate system of handlers and state could remove the 1536 C handler more effectively. */ 1537 if (handlernum == CharacterData && self->in_callback) 1538 c_handler = noop_character_data_handler; 1539 v = NULL; 1540 } 1541 else if (v != NULL) { 1542 Py_INCREF(v); 1543 c_handler = handler_info[handlernum].handler; 1544 } 1545 self->handlers[handlernum] = v; 1546 Py_XDECREF(temp); 1547 handler_info[handlernum].setter(self->itself, c_handler); 1548 return 1; 1549 } 1550 return 0; 1551 } 1552 1553 static int 1554 xmlparse_setattr(xmlparseobject *self, char *name, PyObject *v) 1555 { 1556 /* Set attribute 'name' to value 'v'. v==NULL means delete */ 1557 if (v == NULL) { 1558 PyErr_SetString(PyExc_RuntimeError, "Cannot delete attribute"); 1559 return -1; 1560 } 1561 if (strcmp(name, "buffer_text") == 0) { 1562 int b = PyObject_IsTrue(v); 1563 if (b < 0) 1564 return -1; 1565 if (b) { 1566 if (self->buffer == NULL) { 1567 self->buffer = malloc(self->buffer_size); 1568 if (self->buffer == NULL) { 1569 PyErr_NoMemory(); 1570 return -1; 1571 } 1572 self->buffer_used = 0; 1573 } 1574 } 1575 else if (self->buffer != NULL) { 1576 if (flush_character_buffer(self) < 0) 1577 return -1; 1578 free(self->buffer); 1579 self->buffer = NULL; 1580 } 1581 return 0; 1582 } 1583 if (strcmp(name, "namespace_prefixes") == 0) { 1584 int b = PyObject_IsTrue(v); 1585 if (b < 0) 1586 return -1; 1587 self->ns_prefixes = b; 1588 XML_SetReturnNSTriplet(self->itself, self->ns_prefixes); 1589 return 0; 1590 } 1591 if (strcmp(name, "ordered_attributes") == 0) { 1592 int b = PyObject_IsTrue(v); 1593 if (b < 0) 1594 return -1; 1595 self->ordered_attributes = b; 1596 return 0; 1597 } 1598 if (strcmp(name, "returns_unicode") == 0) { 1599 int b = PyObject_IsTrue(v); 1600 if (b < 0) 1601 return -1; 1602 #ifndef Py_USING_UNICODE 1603 if (b) { 1604 PyErr_SetString(PyExc_ValueError, 1605 "Unicode support not available"); 1606 return -1; 1607 } 1608 #endif 1609 self->returns_unicode = b; 1610 return 0; 1611 } 1612 if (strcmp(name, "specified_attributes") == 0) { 1613 int b = PyObject_IsTrue(v); 1614 if (b < 0) 1615 return -1; 1616 self->specified_attributes = b; 1617 return 0; 1618 } 1619 1620 if (strcmp(name, "buffer_size") == 0) { 1621 long new_buffer_size; 1622 if (!PyInt_Check(v)) { 1623 PyErr_SetString(PyExc_TypeError, "buffer_size must be an integer"); 1624 return -1; 1625 } 1626 1627 new_buffer_size=PyInt_AS_LONG(v); 1628 /* trivial case -- no change */ 1629 if (new_buffer_size == self->buffer_size) { 1630 return 0; 1631 } 1632 1633 if (new_buffer_size <= 0) { 1634 PyErr_SetString(PyExc_ValueError, "buffer_size must be greater than zero"); 1635 return -1; 1636 } 1637 1638 /* check maximum */ 1639 if (new_buffer_size > INT_MAX) { 1640 char errmsg[100]; 1641 sprintf(errmsg, "buffer_size must not be greater than %i", INT_MAX); 1642 PyErr_SetString(PyExc_ValueError, errmsg); 1643 return -1; 1644 } 1645 1646 if (self->buffer != NULL) { 1647 /* there is already a buffer */ 1648 if (self->buffer_used != 0) { 1649 flush_character_buffer(self); 1650 } 1651 /* free existing buffer */ 1652 free(self->buffer); 1653 } 1654 self->buffer = malloc(new_buffer_size); 1655 if (self->buffer == NULL) { 1656 PyErr_NoMemory(); 1657 return -1; 1658 } 1659 self->buffer_size = new_buffer_size; 1660 return 0; 1661 } 1662 1663 if (strcmp(name, "CharacterDataHandler") == 0) { 1664 /* If we're changing the character data handler, flush all 1665 * cached data with the old handler. Not sure there's a 1666 * "right" thing to do, though, but this probably won't 1667 * happen. 1668 */ 1669 if (flush_character_buffer(self) < 0) 1670 return -1; 1671 } 1672 if (sethandler(self, name, v)) { 1673 return 0; 1674 } 1675 PyErr_SetString(PyExc_AttributeError, name); 1676 return -1; 1677 } 1678 1679 #ifdef WITH_CYCLE_GC 1680 static int 1681 xmlparse_traverse(xmlparseobject *op, visitproc visit, void *arg) 1682 { 1683 int i; 1684 for (i = 0; handler_info[i].name != NULL; i++) 1685 Py_VISIT(op->handlers[i]); 1686 return 0; 1687 } 1688 1689 static int 1690 xmlparse_clear(xmlparseobject *op) 1691 { 1692 clear_handlers(op, 0); 1693 Py_CLEAR(op->intern); 1694 return 0; 1695 } 1696 #endif 1697 1698 PyDoc_STRVAR(Xmlparsetype__doc__, "XML parser"); 1699 1700 static PyTypeObject Xmlparsetype = { 1701 PyVarObject_HEAD_INIT(NULL, 0) 1702 "pyexpat.xmlparser", /*tp_name*/ 1703 sizeof(xmlparseobject) + PyGC_HEAD_SIZE,/*tp_basicsize*/ 1704 0, /*tp_itemsize*/ 1705 /* methods */ 1706 (destructor)xmlparse_dealloc, /*tp_dealloc*/ 1707 (printfunc)0, /*tp_print*/ 1708 (getattrfunc)xmlparse_getattr, /*tp_getattr*/ 1709 (setattrfunc)xmlparse_setattr, /*tp_setattr*/ 1710 (cmpfunc)0, /*tp_compare*/ 1711 (reprfunc)0, /*tp_repr*/ 1712 0, /*tp_as_number*/ 1713 0, /*tp_as_sequence*/ 1714 0, /*tp_as_mapping*/ 1715 (hashfunc)0, /*tp_hash*/ 1716 (ternaryfunc)0, /*tp_call*/ 1717 (reprfunc)0, /*tp_str*/ 1718 0, /* tp_getattro */ 1719 0, /* tp_setattro */ 1720 0, /* tp_as_buffer */ 1721 #ifdef Py_TPFLAGS_HAVE_GC 1722 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /*tp_flags*/ 1723 #else 1724 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_GC, /*tp_flags*/ 1725 #endif 1726 Xmlparsetype__doc__, /* tp_doc - Documentation string */ 1727 #ifdef WITH_CYCLE_GC 1728 (traverseproc)xmlparse_traverse, /* tp_traverse */ 1729 (inquiry)xmlparse_clear /* tp_clear */ 1730 #else 1731 0, 0 1732 #endif 1733 }; 1734 1735 /* End of code for xmlparser objects */ 1736 /* -------------------------------------------------------- */ 1737 1738 PyDoc_STRVAR(pyexpat_ParserCreate__doc__, 1739 "ParserCreate([encoding[, namespace_separator]]) -> parser\n\ 1740 Return a new XML parser object."); 1741 1742 static PyObject * 1743 pyexpat_ParserCreate(PyObject *notused, PyObject *args, PyObject *kw) 1744 { 1745 char *encoding = NULL; 1746 char *namespace_separator = NULL; 1747 PyObject *intern = NULL; 1748 PyObject *result; 1749 int intern_decref = 0; 1750 static char *kwlist[] = {"encoding", "namespace_separator", 1751 "intern", NULL}; 1752 1753 if (!PyArg_ParseTupleAndKeywords(args, kw, "|zzO:ParserCreate", kwlist, 1754 &encoding, &namespace_separator, &intern)) 1755 return NULL; 1756 if (namespace_separator != NULL 1757 && strlen(namespace_separator) > 1) { 1758 PyErr_SetString(PyExc_ValueError, 1759 "namespace_separator must be at most one" 1760 " character, omitted, or None"); 1761 return NULL; 1762 } 1763 /* Explicitly passing None means no interning is desired. 1764 Not passing anything means that a new dictionary is used. */ 1765 if (intern == Py_None) 1766 intern = NULL; 1767 else if (intern == NULL) { 1768 intern = PyDict_New(); 1769 if (!intern) 1770 return NULL; 1771 intern_decref = 1; 1772 } 1773 else if (!PyDict_Check(intern)) { 1774 PyErr_SetString(PyExc_TypeError, "intern must be a dictionary"); 1775 return NULL; 1776 } 1777 1778 result = newxmlparseobject(encoding, namespace_separator, intern); 1779 if (intern_decref) { 1780 Py_DECREF(intern); 1781 } 1782 return result; 1783 } 1784 1785 PyDoc_STRVAR(pyexpat_ErrorString__doc__, 1786 "ErrorString(errno) -> string\n\ 1787 Returns string error for given number."); 1788 1789 static PyObject * 1790 pyexpat_ErrorString(PyObject *self, PyObject *args) 1791 { 1792 long code = 0; 1793 1794 if (!PyArg_ParseTuple(args, "l:ErrorString", &code)) 1795 return NULL; 1796 return Py_BuildValue("z", XML_ErrorString((int)code)); 1797 } 1798 1799 /* List of methods defined in the module */ 1800 1801 static struct PyMethodDef pyexpat_methods[] = { 1802 {"ParserCreate", (PyCFunction)pyexpat_ParserCreate, 1803 METH_VARARGS|METH_KEYWORDS, pyexpat_ParserCreate__doc__}, 1804 {"ErrorString", (PyCFunction)pyexpat_ErrorString, 1805 METH_VARARGS, pyexpat_ErrorString__doc__}, 1806 1807 {NULL, (PyCFunction)NULL, 0, NULL} /* sentinel */ 1808 }; 1809 1810 /* Module docstring */ 1811 1812 PyDoc_STRVAR(pyexpat_module_documentation, 1813 "Python wrapper for Expat parser."); 1814 1815 /* Initialization function for the module */ 1816 1817 #ifndef MODULE_NAME 1818 #define MODULE_NAME "pyexpat" 1819 #endif 1820 1821 #ifndef MODULE_INITFUNC 1822 #define MODULE_INITFUNC initpyexpat 1823 #endif 1824 1825 #ifndef PyMODINIT_FUNC 1826 # ifdef MS_WINDOWS 1827 # define PyMODINIT_FUNC __declspec(dllexport) void 1828 # else 1829 # define PyMODINIT_FUNC void 1830 # endif 1831 #endif 1832 1833 PyMODINIT_FUNC MODULE_INITFUNC(void); /* avoid compiler warnings */ 1834 1835 PyMODINIT_FUNC 1836 MODULE_INITFUNC(void) 1837 { 1838 PyObject *m, *d; 1839 PyObject *errmod_name = PyString_FromString(MODULE_NAME ".errors"); 1840 PyObject *errors_module; 1841 PyObject *modelmod_name; 1842 PyObject *model_module; 1843 PyObject *sys_modules; 1844 PyObject *version; 1845 static struct PyExpat_CAPI capi; 1846 PyObject* capi_object; 1847 1848 if (errmod_name == NULL) 1849 return; 1850 modelmod_name = PyString_FromString(MODULE_NAME ".model"); 1851 if (modelmod_name == NULL) 1852 return; 1853 1854 Py_TYPE(&Xmlparsetype) = &PyType_Type; 1855 1856 /* Create the module and add the functions */ 1857 m = Py_InitModule3(MODULE_NAME, pyexpat_methods, 1858 pyexpat_module_documentation); 1859 if (m == NULL) 1860 return; 1861 1862 /* Add some symbolic constants to the module */ 1863 if (ErrorObject == NULL) { 1864 ErrorObject = PyErr_NewException("xml.parsers.expat.ExpatError", 1865 NULL, NULL); 1866 if (ErrorObject == NULL) 1867 return; 1868 } 1869 Py_INCREF(ErrorObject); 1870 PyModule_AddObject(m, "error", ErrorObject); 1871 Py_INCREF(ErrorObject); 1872 PyModule_AddObject(m, "ExpatError", ErrorObject); 1873 Py_INCREF(&Xmlparsetype); 1874 PyModule_AddObject(m, "XMLParserType", (PyObject *) &Xmlparsetype); 1875 1876 version = PyString_FromString(PY_VERSION); 1877 if (!version) 1878 return; 1879 PyModule_AddObject(m, "__version__", version); 1880 PyModule_AddStringConstant(m, "EXPAT_VERSION", 1881 (char *) XML_ExpatVersion()); 1882 { 1883 XML_Expat_Version info = XML_ExpatVersionInfo(); 1884 PyModule_AddObject(m, "version_info", 1885 Py_BuildValue("(iii)", info.major, 1886 info.minor, info.micro)); 1887 } 1888 #ifdef Py_USING_UNICODE 1889 init_template_buffer(); 1890 #endif 1891 /* XXX When Expat supports some way of figuring out how it was 1892 compiled, this should check and set native_encoding 1893 appropriately. 1894 */ 1895 PyModule_AddStringConstant(m, "native_encoding", "UTF-8"); 1896 1897 sys_modules = PySys_GetObject("modules"); 1898 d = PyModule_GetDict(m); 1899 errors_module = PyDict_GetItem(d, errmod_name); 1900 if (errors_module == NULL) { 1901 errors_module = PyModule_New(MODULE_NAME ".errors"); 1902 if (errors_module != NULL) { 1903 PyDict_SetItem(sys_modules, errmod_name, errors_module); 1904 /* gives away the reference to errors_module */ 1905 PyModule_AddObject(m, "errors", errors_module); 1906 } 1907 } 1908 Py_DECREF(errmod_name); 1909 model_module = PyDict_GetItem(d, modelmod_name); 1910 if (model_module == NULL) { 1911 model_module = PyModule_New(MODULE_NAME ".model"); 1912 if (model_module != NULL) { 1913 PyDict_SetItem(sys_modules, modelmod_name, model_module); 1914 /* gives away the reference to model_module */ 1915 PyModule_AddObject(m, "model", model_module); 1916 } 1917 } 1918 Py_DECREF(modelmod_name); 1919 if (errors_module == NULL || model_module == NULL) 1920 /* Don't core dump later! */ 1921 return; 1922 1923 #if XML_COMBINED_VERSION > 19505 1924 { 1925 const XML_Feature *features = XML_GetFeatureList(); 1926 PyObject *list = PyList_New(0); 1927 if (list == NULL) 1928 /* just ignore it */ 1929 PyErr_Clear(); 1930 else { 1931 int i = 0; 1932 for (; features[i].feature != XML_FEATURE_END; ++i) { 1933 int ok; 1934 PyObject *item = Py_BuildValue("si", features[i].name, 1935 features[i].value); 1936 if (item == NULL) { 1937 Py_DECREF(list); 1938 list = NULL; 1939 break; 1940 } 1941 ok = PyList_Append(list, item); 1942 Py_DECREF(item); 1943 if (ok < 0) { 1944 PyErr_Clear(); 1945 break; 1946 } 1947 } 1948 if (list != NULL) 1949 PyModule_AddObject(m, "features", list); 1950 } 1951 } 1952 #endif 1953 1954 #define MYCONST(name) \ 1955 PyModule_AddStringConstant(errors_module, #name, \ 1956 (char*)XML_ErrorString(name)) 1957 1958 MYCONST(XML_ERROR_NO_MEMORY); 1959 MYCONST(XML_ERROR_SYNTAX); 1960 MYCONST(XML_ERROR_NO_ELEMENTS); 1961 MYCONST(XML_ERROR_INVALID_TOKEN); 1962 MYCONST(XML_ERROR_UNCLOSED_TOKEN); 1963 MYCONST(XML_ERROR_PARTIAL_CHAR); 1964 MYCONST(XML_ERROR_TAG_MISMATCH); 1965 MYCONST(XML_ERROR_DUPLICATE_ATTRIBUTE); 1966 MYCONST(XML_ERROR_JUNK_AFTER_DOC_ELEMENT); 1967 MYCONST(XML_ERROR_PARAM_ENTITY_REF); 1968 MYCONST(XML_ERROR_UNDEFINED_ENTITY); 1969 MYCONST(XML_ERROR_RECURSIVE_ENTITY_REF); 1970 MYCONST(XML_ERROR_ASYNC_ENTITY); 1971 MYCONST(XML_ERROR_BAD_CHAR_REF); 1972 MYCONST(XML_ERROR_BINARY_ENTITY_REF); 1973 MYCONST(XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF); 1974 MYCONST(XML_ERROR_MISPLACED_XML_PI); 1975 MYCONST(XML_ERROR_UNKNOWN_ENCODING); 1976 MYCONST(XML_ERROR_INCORRECT_ENCODING); 1977 MYCONST(XML_ERROR_UNCLOSED_CDATA_SECTION); 1978 MYCONST(XML_ERROR_EXTERNAL_ENTITY_HANDLING); 1979 MYCONST(XML_ERROR_NOT_STANDALONE); 1980 MYCONST(XML_ERROR_UNEXPECTED_STATE); 1981 MYCONST(XML_ERROR_ENTITY_DECLARED_IN_PE); 1982 MYCONST(XML_ERROR_FEATURE_REQUIRES_XML_DTD); 1983 MYCONST(XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING); 1984 /* Added in Expat 1.95.7. */ 1985 MYCONST(XML_ERROR_UNBOUND_PREFIX); 1986 /* Added in Expat 1.95.8. */ 1987 MYCONST(XML_ERROR_UNDECLARING_PREFIX); 1988 MYCONST(XML_ERROR_INCOMPLETE_PE); 1989 MYCONST(XML_ERROR_XML_DECL); 1990 MYCONST(XML_ERROR_TEXT_DECL); 1991 MYCONST(XML_ERROR_PUBLICID); 1992 MYCONST(XML_ERROR_SUSPENDED); 1993 MYCONST(XML_ERROR_NOT_SUSPENDED); 1994 MYCONST(XML_ERROR_ABORTED); 1995 MYCONST(XML_ERROR_FINISHED); 1996 MYCONST(XML_ERROR_SUSPEND_PE); 1997 1998 PyModule_AddStringConstant(errors_module, "__doc__", 1999 "Constants used to describe error conditions."); 2000 2001 #undef MYCONST 2002 2003 #define MYCONST(c) PyModule_AddIntConstant(m, #c, c) 2004 MYCONST(XML_PARAM_ENTITY_PARSING_NEVER); 2005 MYCONST(XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE); 2006 MYCONST(XML_PARAM_ENTITY_PARSING_ALWAYS); 2007 #undef MYCONST 2008 2009 #define MYCONST(c) PyModule_AddIntConstant(model_module, #c, c) 2010 PyModule_AddStringConstant(model_module, "__doc__", 2011 "Constants used to interpret content model information."); 2012 2013 MYCONST(XML_CTYPE_EMPTY); 2014 MYCONST(XML_CTYPE_ANY); 2015 MYCONST(XML_CTYPE_MIXED); 2016 MYCONST(XML_CTYPE_NAME); 2017 MYCONST(XML_CTYPE_CHOICE); 2018 MYCONST(XML_CTYPE_SEQ); 2019 2020 MYCONST(XML_CQUANT_NONE); 2021 MYCONST(XML_CQUANT_OPT); 2022 MYCONST(XML_CQUANT_REP); 2023 MYCONST(XML_CQUANT_PLUS); 2024 #undef MYCONST 2025 2026 /* initialize pyexpat dispatch table */ 2027 capi.size = sizeof(capi); 2028 capi.magic = PyExpat_CAPI_MAGIC; 2029 capi.MAJOR_VERSION = XML_MAJOR_VERSION; 2030 capi.MINOR_VERSION = XML_MINOR_VERSION; 2031 capi.MICRO_VERSION = XML_MICRO_VERSION; 2032 capi.ErrorString = XML_ErrorString; 2033 capi.GetErrorCode = XML_GetErrorCode; 2034 capi.GetErrorColumnNumber = XML_GetErrorColumnNumber; 2035 capi.GetErrorLineNumber = XML_GetErrorLineNumber; 2036 capi.Parse = XML_Parse; 2037 capi.ParserCreate_MM = XML_ParserCreate_MM; 2038 capi.ParserFree = XML_ParserFree; 2039 capi.SetCharacterDataHandler = XML_SetCharacterDataHandler; 2040 capi.SetCommentHandler = XML_SetCommentHandler; 2041 capi.SetDefaultHandlerExpand = XML_SetDefaultHandlerExpand; 2042 capi.SetElementHandler = XML_SetElementHandler; 2043 capi.SetNamespaceDeclHandler = XML_SetNamespaceDeclHandler; 2044 capi.SetProcessingInstructionHandler = XML_SetProcessingInstructionHandler; 2045 capi.SetUnknownEncodingHandler = XML_SetUnknownEncodingHandler; 2046 capi.SetUserData = XML_SetUserData; 2047 2048 /* export using capsule */ 2049 capi_object = PyCapsule_New(&capi, PyExpat_CAPSULE_NAME, NULL); 2050 if (capi_object) 2051 PyModule_AddObject(m, "expat_CAPI", capi_object); 2052 } 2053 2054 static void 2055 clear_handlers(xmlparseobject *self, int initial) 2056 { 2057 int i = 0; 2058 PyObject *temp; 2059 2060 for (; handler_info[i].name != NULL; i++) { 2061 if (initial) 2062 self->handlers[i] = NULL; 2063 else { 2064 temp = self->handlers[i]; 2065 self->handlers[i] = NULL; 2066 Py_XDECREF(temp); 2067 handler_info[i].setter(self->itself, NULL); 2068 } 2069 } 2070 } 2071 2072 static struct HandlerInfo handler_info[] = { 2073 {"StartElementHandler", 2074 (xmlhandlersetter)XML_SetStartElementHandler, 2075 (xmlhandler)my_StartElementHandler}, 2076 {"EndElementHandler", 2077 (xmlhandlersetter)XML_SetEndElementHandler, 2078 (xmlhandler)my_EndElementHandler}, 2079 {"ProcessingInstructionHandler", 2080 (xmlhandlersetter)XML_SetProcessingInstructionHandler, 2081 (xmlhandler)my_ProcessingInstructionHandler}, 2082 {"CharacterDataHandler", 2083 (xmlhandlersetter)XML_SetCharacterDataHandler, 2084 (xmlhandler)my_CharacterDataHandler}, 2085 {"UnparsedEntityDeclHandler", 2086 (xmlhandlersetter)XML_SetUnparsedEntityDeclHandler, 2087 (xmlhandler)my_UnparsedEntityDeclHandler}, 2088 {"NotationDeclHandler", 2089 (xmlhandlersetter)XML_SetNotationDeclHandler, 2090 (xmlhandler)my_NotationDeclHandler}, 2091 {"StartNamespaceDeclHandler", 2092 (xmlhandlersetter)XML_SetStartNamespaceDeclHandler, 2093 (xmlhandler)my_StartNamespaceDeclHandler}, 2094 {"EndNamespaceDeclHandler", 2095 (xmlhandlersetter)XML_SetEndNamespaceDeclHandler, 2096 (xmlhandler)my_EndNamespaceDeclHandler}, 2097 {"CommentHandler", 2098 (xmlhandlersetter)XML_SetCommentHandler, 2099 (xmlhandler)my_CommentHandler}, 2100 {"StartCdataSectionHandler", 2101 (xmlhandlersetter)XML_SetStartCdataSectionHandler, 2102 (xmlhandler)my_StartCdataSectionHandler}, 2103 {"EndCdataSectionHandler", 2104 (xmlhandlersetter)XML_SetEndCdataSectionHandler, 2105 (xmlhandler)my_EndCdataSectionHandler}, 2106 {"DefaultHandler", 2107 (xmlhandlersetter)XML_SetDefaultHandler, 2108 (xmlhandler)my_DefaultHandler}, 2109 {"DefaultHandlerExpand", 2110 (xmlhandlersetter)XML_SetDefaultHandlerExpand, 2111 (xmlhandler)my_DefaultHandlerExpandHandler}, 2112 {"NotStandaloneHandler", 2113 (xmlhandlersetter)XML_SetNotStandaloneHandler, 2114 (xmlhandler)my_NotStandaloneHandler}, 2115 {"ExternalEntityRefHandler", 2116 (xmlhandlersetter)XML_SetExternalEntityRefHandler, 2117 (xmlhandler)my_ExternalEntityRefHandler}, 2118 {"StartDoctypeDeclHandler", 2119 (xmlhandlersetter)XML_SetStartDoctypeDeclHandler, 2120 (xmlhandler)my_StartDoctypeDeclHandler}, 2121 {"EndDoctypeDeclHandler", 2122 (xmlhandlersetter)XML_SetEndDoctypeDeclHandler, 2123 (xmlhandler)my_EndDoctypeDeclHandler}, 2124 {"EntityDeclHandler", 2125 (xmlhandlersetter)XML_SetEntityDeclHandler, 2126 (xmlhandler)my_EntityDeclHandler}, 2127 {"XmlDeclHandler", 2128 (xmlhandlersetter)XML_SetXmlDeclHandler, 2129 (xmlhandler)my_XmlDeclHandler}, 2130 {"ElementDeclHandler", 2131 (xmlhandlersetter)XML_SetElementDeclHandler, 2132 (xmlhandler)my_ElementDeclHandler}, 2133 {"AttlistDeclHandler", 2134 (xmlhandlersetter)XML_SetAttlistDeclHandler, 2135 (xmlhandler)my_AttlistDeclHandler}, 2136 #if XML_COMBINED_VERSION >= 19504 2137 {"SkippedEntityHandler", 2138 (xmlhandlersetter)XML_SetSkippedEntityHandler, 2139 (xmlhandler)my_SkippedEntityHandler}, 2140 #endif 2141 2142 {NULL, NULL, NULL} /* sentinel */ 2143 }; 2144
