| Location | Tool | Test ID | Function | Issue |
|---|---|---|---|---|
| /builddir/build/BUILD/Python-2.7.3/Modules/pyexpat.c:1125:28 | clang-analyzer | Call to 'malloc' has an allocation size of 0 bytes | ||
| /builddir/build/BUILD/Python-2.7.3/Modules/pyexpat.c:1125:28 | clang-analyzer | Call to 'malloc' has an allocation size of 0 bytes | ||
| /builddir/build/BUILD/Python-2.7.3/Modules/pyexpat.c:1334:22 | clang-analyzer | Call to 'malloc' has an allocation size of 0 bytes | ||
| /builddir/build/BUILD/Python-2.7.3/Modules/pyexpat.c:1334:22 | clang-analyzer | Call to 'malloc' has an allocation size of 0 bytes |
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 PyErr_NoMemory();
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);
(emitted by clang-analyzer)TODO: a detailed trace is available in the data model (not yet rendered in this report)
(emitted by clang-analyzer)TODO: a detailed trace is available in the data model (not yet rendered in this report)
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 XML_Bool flag = XML_TRUE;
1178 enum XML_Error rc;
1179 if (!PyArg_UnpackTuple(args, "UseForeignDTD", 0, 1, &flagobj))
1180 return NULL;
1181 if (flagobj != NULL)
1182 flag = PyObject_IsTrue(flagobj) ? XML_TRUE : XML_FALSE;
1183 rc = XML_UseForeignDTD(self->itself, flag);
1184 if (rc != XML_ERROR_NONE) {
1185 return set_error(self, rc);
1186 }
1187 Py_INCREF(Py_None);
1188 return Py_None;
1189 }
1190 #endif
1191
1192 static struct PyMethodDef xmlparse_methods[] = {
1193 {"Parse", (PyCFunction)xmlparse_Parse,
1194 METH_VARARGS, xmlparse_Parse__doc__},
1195 {"ParseFile", (PyCFunction)xmlparse_ParseFile,
1196 METH_O, xmlparse_ParseFile__doc__},
1197 {"SetBase", (PyCFunction)xmlparse_SetBase,
1198 METH_VARARGS, xmlparse_SetBase__doc__},
1199 {"GetBase", (PyCFunction)xmlparse_GetBase,
1200 METH_NOARGS, xmlparse_GetBase__doc__},
1201 {"ExternalEntityParserCreate", (PyCFunction)xmlparse_ExternalEntityParserCreate,
1202 METH_VARARGS, xmlparse_ExternalEntityParserCreate__doc__},
1203 {"SetParamEntityParsing", (PyCFunction)xmlparse_SetParamEntityParsing,
1204 METH_VARARGS, xmlparse_SetParamEntityParsing__doc__},
1205 {"GetInputContext", (PyCFunction)xmlparse_GetInputContext,
1206 METH_NOARGS, xmlparse_GetInputContext__doc__},
1207 #if XML_COMBINED_VERSION >= 19505
1208 {"UseForeignDTD", (PyCFunction)xmlparse_UseForeignDTD,
1209 METH_VARARGS, xmlparse_UseForeignDTD__doc__},
1210 #endif
1211 {NULL, NULL} /* sentinel */
1212 };
1213
1214 /* ---------- */
1215
1216
1217 #ifdef Py_USING_UNICODE
1218
1219 /* pyexpat international encoding support.
1220 Make it as simple as possible.
1221 */
1222
1223 static char template_buffer[257];
1224 PyObject *template_string = NULL;
1225
1226 static void
1227 init_template_buffer(void)
1228 {
1229 int i;
1230 for (i = 0; i < 256; i++) {
1231 template_buffer[i] = i;
1232 }
1233 template_buffer[256] = 0;
1234 }
1235
1236 static int
1237 PyUnknownEncodingHandler(void *encodingHandlerData,
1238 const XML_Char *name,
1239 XML_Encoding *info)
1240 {
1241 PyUnicodeObject *_u_string = NULL;
1242 int result = 0;
1243 int i;
1244
1245 /* Yes, supports only 8bit encodings */
1246 _u_string = (PyUnicodeObject *)
1247 PyUnicode_Decode(template_buffer, 256, name, "replace");
1248
1249 if (_u_string == NULL)
1250 return result;
1251
1252 for (i = 0; i < 256; i++) {
1253 /* Stupid to access directly, but fast */
1254 Py_UNICODE c = _u_string->str[i];
1255 if (c == Py_UNICODE_REPLACEMENT_CHARACTER)
1256 info->map[i] = -1;
1257 else
1258 info->map[i] = c;
1259 }
1260 info->data = NULL;
1261 info->convert = NULL;
1262 info->release = NULL;
1263 result = 1;
1264 Py_DECREF(_u_string);
1265 return result;
1266 }
1267
1268 #endif
1269
1270 static PyObject *
1271 newxmlparseobject(char *encoding, char *namespace_separator, PyObject *intern)
1272 {
1273 int i;
1274 xmlparseobject *self;
1275
1276 #ifdef Py_TPFLAGS_HAVE_GC
1277 /* Code for versions 2.2 and later */
1278 self = PyObject_GC_New(xmlparseobject, &Xmlparsetype);
1279 #else
1280 self = PyObject_New(xmlparseobject, &Xmlparsetype);
1281 #endif
1282 if (self == NULL)
1283 return NULL;
1284
1285 #ifdef Py_USING_UNICODE
1286 self->returns_unicode = 1;
1287 #else
1288 self->returns_unicode = 0;
1289 #endif
1290
1291 self->buffer = NULL;
1292 self->buffer_size = CHARACTER_DATA_BUFFER_SIZE;
1293 self->buffer_used = 0;
1294 self->ordered_attributes = 0;
1295 self->specified_attributes = 0;
1296 self->in_callback = 0;
1297 self->ns_prefixes = 0;
1298 self->handlers = NULL;
1299 if (namespace_separator != NULL) {
1300 self->itself = XML_ParserCreateNS(encoding, *namespace_separator);
1301 }
1302 else {
1303 self->itself = XML_ParserCreate(encoding);
1304 }
1305 #if ((XML_MAJOR_VERSION >= 2) && (XML_MINOR_VERSION >= 1)) || defined(XML_HAS_SET_HASH_SALT)
1306 /* This feature was added upstream in libexpat 2.1.0. Our expat copy
1307 * has a backport of this feature where we also define XML_HAS_SET_HASH_SALT
1308 * to indicate that we can still use it. */
1309 XML_SetHashSalt(self->itself,
1310 (unsigned long)_Py_HashSecret.prefix);
1311 #endif
1312 self->intern = intern;
1313 Py_XINCREF(self->intern);
1314 #ifdef Py_TPFLAGS_HAVE_GC
1315 PyObject_GC_Track(self);
1316 #else
1317 PyObject_GC_Init(self);
1318 #endif
1319 if (self->itself == NULL) {
1320 PyErr_SetString(PyExc_RuntimeError,
1321 "XML_ParserCreate failed");
1322 Py_DECREF(self);
1323 return NULL;
1324 }
1325 XML_SetUserData(self->itself, (void *)self);
1326 #ifdef Py_USING_UNICODE
1327 XML_SetUnknownEncodingHandler(self->itself,
1328 (XML_UnknownEncodingHandler) PyUnknownEncodingHandler, NULL);
1329 #endif
1330
1331 for (i = 0; handler_info[i].name != NULL; i++)
1332 /* do nothing */;
1333
1334 self->handlers = malloc(sizeof(PyObject *) * i);
(emitted by clang-analyzer)TODO: a detailed trace is available in the data model (not yet rendered in this report)
(emitted by clang-analyzer)TODO: a detailed trace is available in the data model (not yet rendered in this report)
1335 if (!self->handlers) {
1336 Py_DECREF(self);
1337 return PyErr_NoMemory();
1338 }
1339 clear_handlers(self, 1);
1340
1341 return (PyObject*)self;
1342 }
1343
1344
1345 static void
1346 xmlparse_dealloc(xmlparseobject *self)
1347 {
1348 int i;
1349 #ifdef Py_TPFLAGS_HAVE_GC
1350 PyObject_GC_UnTrack(self);
1351 #else
1352 PyObject_GC_Fini(self);
1353 #endif
1354 if (self->itself != NULL)
1355 XML_ParserFree(self->itself);
1356 self->itself = NULL;
1357
1358 if (self->handlers != NULL) {
1359 PyObject *temp;
1360 for (i = 0; handler_info[i].name != NULL; i++) {
1361 temp = self->handlers[i];
1362 self->handlers[i] = NULL;
1363 Py_XDECREF(temp);
1364 }
1365 free(self->handlers);
1366 self->handlers = NULL;
1367 }
1368 if (self->buffer != NULL) {
1369 free(self->buffer);
1370 self->buffer = NULL;
1371 }
1372 Py_XDECREF(self->intern);
1373 #ifndef Py_TPFLAGS_HAVE_GC
1374 /* Code for versions 2.0 and 2.1 */
1375 PyObject_Del(self);
1376 #else
1377 /* Code for versions 2.2 and later. */
1378 PyObject_GC_Del(self);
1379 #endif
1380 }
1381
1382 static int
1383 handlername2int(const char *name)
1384 {
1385 int i;
1386 for (i = 0; handler_info[i].name != NULL; i++) {
1387 if (strcmp(name, handler_info[i].name) == 0) {
1388 return i;
1389 }
1390 }
1391 return -1;
1392 }
1393
1394 static PyObject *
1395 get_pybool(int istrue)
1396 {
1397 PyObject *result = istrue ? Py_True : Py_False;
1398 Py_INCREF(result);
1399 return result;
1400 }
1401
1402 static PyObject *
1403 xmlparse_getattr(xmlparseobject *self, char *name)
1404 {
1405 int handlernum = handlername2int(name);
1406
1407 if (handlernum != -1) {
1408 PyObject *result = self->handlers[handlernum];
1409 if (result == NULL)
1410 result = Py_None;
1411 Py_INCREF(result);
1412 return result;
1413 }
1414 if (name[0] == 'E') {
1415 if (strcmp(name, "ErrorCode") == 0)
1416 return PyInt_FromLong((long)
1417 XML_GetErrorCode(self->itself));
1418 if (strcmp(name, "ErrorLineNumber") == 0)
1419 return PyInt_FromLong((long)
1420 XML_GetErrorLineNumber(self->itself));
1421 if (strcmp(name, "ErrorColumnNumber") == 0)
1422 return PyInt_FromLong((long)
1423 XML_GetErrorColumnNumber(self->itself));
1424 if (strcmp(name, "ErrorByteIndex") == 0)
1425 return PyInt_FromLong((long)
1426 XML_GetErrorByteIndex(self->itself));
1427 }
1428 if (name[0] == 'C') {
1429 if (strcmp(name, "CurrentLineNumber") == 0)
1430 return PyInt_FromLong((long)
1431 XML_GetCurrentLineNumber(self->itself));
1432 if (strcmp(name, "CurrentColumnNumber") == 0)
1433 return PyInt_FromLong((long)
1434 XML_GetCurrentColumnNumber(self->itself));
1435 if (strcmp(name, "CurrentByteIndex") == 0)
1436 return PyInt_FromLong((long)
1437 XML_GetCurrentByteIndex(self->itself));
1438 }
1439 if (name[0] == 'b') {
1440 if (strcmp(name, "buffer_size") == 0)
1441 return PyInt_FromLong((long) self->buffer_size);
1442 if (strcmp(name, "buffer_text") == 0)
1443 return get_pybool(self->buffer != NULL);
1444 if (strcmp(name, "buffer_used") == 0)
1445 return PyInt_FromLong((long) self->buffer_used);
1446 }
1447 if (strcmp(name, "namespace_prefixes") == 0)
1448 return get_pybool(self->ns_prefixes);
1449 if (strcmp(name, "ordered_attributes") == 0)
1450 return get_pybool(self->ordered_attributes);
1451 if (strcmp(name, "returns_unicode") == 0)
1452 return get_pybool((long) self->returns_unicode);
1453 if (strcmp(name, "specified_attributes") == 0)
1454 return get_pybool((long) self->specified_attributes);
1455 if (strcmp(name, "intern") == 0) {
1456 if (self->intern == NULL) {
1457 Py_INCREF(Py_None);
1458 return Py_None;
1459 }
1460 else {
1461 Py_INCREF(self->intern);
1462 return self->intern;
1463 }
1464 }
1465
1466 #define APPEND(list, str) \
1467 do { \
1468 PyObject *o = PyString_FromString(str); \
1469 if (o != NULL) \
1470 PyList_Append(list, o); \
1471 Py_XDECREF(o); \
1472 } while (0)
1473
1474 if (strcmp(name, "__members__") == 0) {
1475 int i;
1476 PyObject *rc = PyList_New(0);
1477 if (!rc)
1478 return NULL;
1479 for (i = 0; handler_info[i].name != NULL; i++) {
1480 PyObject *o = get_handler_name(&handler_info[i]);
1481 if (o != NULL)
1482 PyList_Append(rc, o);
1483 Py_XDECREF(o);
1484 }
1485 APPEND(rc, "ErrorCode");
1486 APPEND(rc, "ErrorLineNumber");
1487 APPEND(rc, "ErrorColumnNumber");
1488 APPEND(rc, "ErrorByteIndex");
1489 APPEND(rc, "CurrentLineNumber");
1490 APPEND(rc, "CurrentColumnNumber");
1491 APPEND(rc, "CurrentByteIndex");
1492 APPEND(rc, "buffer_size");
1493 APPEND(rc, "buffer_text");
1494 APPEND(rc, "buffer_used");
1495 APPEND(rc, "namespace_prefixes");
1496 APPEND(rc, "ordered_attributes");
1497 APPEND(rc, "returns_unicode");
1498 APPEND(rc, "specified_attributes");
1499 APPEND(rc, "intern");
1500
1501 #undef APPEND
1502 return rc;
1503 }
1504 return Py_FindMethod(xmlparse_methods, (PyObject *)self, name);
1505 }
1506
1507 static int
1508 sethandler(xmlparseobject *self, const char *name, PyObject* v)
1509 {
1510 int handlernum = handlername2int(name);
1511 if (handlernum >= 0) {
1512 xmlhandler c_handler = NULL;
1513 PyObject *temp = self->handlers[handlernum];
1514
1515 if (v == Py_None) {
1516 /* If this is the character data handler, and a character
1517 data handler is already active, we need to be more
1518 careful. What we can safely do is replace the existing
1519 character data handler callback function with a no-op
1520 function that will refuse to call Python. The downside
1521 is that this doesn't completely remove the character
1522 data handler from the C layer if there's any callback
1523 active, so Expat does a little more work than it
1524 otherwise would, but that's really an odd case. A more
1525 elaborate system of handlers and state could remove the
1526 C handler more effectively. */
1527 if (handlernum == CharacterData && self->in_callback)
1528 c_handler = noop_character_data_handler;
1529 v = NULL;
1530 }
1531 else if (v != NULL) {
1532 Py_INCREF(v);
1533 c_handler = handler_info[handlernum].handler;
1534 }
1535 self->handlers[handlernum] = v;
1536 Py_XDECREF(temp);
1537 handler_info[handlernum].setter(self->itself, c_handler);
1538 return 1;
1539 }
1540 return 0;
1541 }
1542
1543 static int
1544 xmlparse_setattr(xmlparseobject *self, char *name, PyObject *v)
1545 {
1546 /* Set attribute 'name' to value 'v'. v==NULL means delete */
1547 if (v == NULL) {
1548 PyErr_SetString(PyExc_RuntimeError, "Cannot delete attribute");
1549 return -1;
1550 }
1551 if (strcmp(name, "buffer_text") == 0) {
1552 if (PyObject_IsTrue(v)) {
1553 if (self->buffer == NULL) {
1554 self->buffer = malloc(self->buffer_size);
1555 if (self->buffer == NULL) {
1556 PyErr_NoMemory();
1557 return -1;
1558 }
1559 self->buffer_used = 0;
1560 }
1561 }
1562 else if (self->buffer != NULL) {
1563 if (flush_character_buffer(self) < 0)
1564 return -1;
1565 free(self->buffer);
1566 self->buffer = NULL;
1567 }
1568 return 0;
1569 }
1570 if (strcmp(name, "namespace_prefixes") == 0) {
1571 if (PyObject_IsTrue(v))
1572 self->ns_prefixes = 1;
1573 else
1574 self->ns_prefixes = 0;
1575 XML_SetReturnNSTriplet(self->itself, self->ns_prefixes);
1576 return 0;
1577 }
1578 if (strcmp(name, "ordered_attributes") == 0) {
1579 if (PyObject_IsTrue(v))
1580 self->ordered_attributes = 1;
1581 else
1582 self->ordered_attributes = 0;
1583 return 0;
1584 }
1585 if (strcmp(name, "returns_unicode") == 0) {
1586 if (PyObject_IsTrue(v)) {
1587 #ifndef Py_USING_UNICODE
1588 PyErr_SetString(PyExc_ValueError,
1589 "Unicode support not available");
1590 return -1;
1591 #else
1592 self->returns_unicode = 1;
1593 #endif
1594 }
1595 else
1596 self->returns_unicode = 0;
1597 return 0;
1598 }
1599 if (strcmp(name, "specified_attributes") == 0) {
1600 if (PyObject_IsTrue(v))
1601 self->specified_attributes = 1;
1602 else
1603 self->specified_attributes = 0;
1604 return 0;
1605 }
1606
1607 if (strcmp(name, "buffer_size") == 0) {
1608 long new_buffer_size;
1609 if (!PyInt_Check(v)) {
1610 PyErr_SetString(PyExc_TypeError, "buffer_size must be an integer");
1611 return -1;
1612 }
1613
1614 new_buffer_size=PyInt_AS_LONG(v);
1615 /* trivial case -- no change */
1616 if (new_buffer_size == self->buffer_size) {
1617 return 0;
1618 }
1619
1620 if (new_buffer_size <= 0) {
1621 PyErr_SetString(PyExc_ValueError, "buffer_size must be greater than zero");
1622 return -1;
1623 }
1624
1625 /* check maximum */
1626 if (new_buffer_size > INT_MAX) {
1627 char errmsg[100];
1628 sprintf(errmsg, "buffer_size must not be greater than %i", INT_MAX);
1629 PyErr_SetString(PyExc_ValueError, errmsg);
1630 return -1;
1631 }
1632
1633 if (self->buffer != NULL) {
1634 /* there is already a buffer */
1635 if (self->buffer_used != 0) {
1636 flush_character_buffer(self);
1637 }
1638 /* free existing buffer */
1639 free(self->buffer);
1640 }
1641 self->buffer = malloc(new_buffer_size);
1642 if (self->buffer == NULL) {
1643 PyErr_NoMemory();
1644 return -1;
1645 }
1646 self->buffer_size = new_buffer_size;
1647 return 0;
1648 }
1649
1650 if (strcmp(name, "CharacterDataHandler") == 0) {
1651 /* If we're changing the character data handler, flush all
1652 * cached data with the old handler. Not sure there's a
1653 * "right" thing to do, though, but this probably won't
1654 * happen.
1655 */
1656 if (flush_character_buffer(self) < 0)
1657 return -1;
1658 }
1659 if (sethandler(self, name, v)) {
1660 return 0;
1661 }
1662 PyErr_SetString(PyExc_AttributeError, name);
1663 return -1;
1664 }
1665
1666 #ifdef WITH_CYCLE_GC
1667 static int
1668 xmlparse_traverse(xmlparseobject *op, visitproc visit, void *arg)
1669 {
1670 int i;
1671 for (i = 0; handler_info[i].name != NULL; i++)
1672 Py_VISIT(op->handlers[i]);
1673 return 0;
1674 }
1675
1676 static int
1677 xmlparse_clear(xmlparseobject *op)
1678 {
1679 clear_handlers(op, 0);
1680 Py_CLEAR(op->intern);
1681 return 0;
1682 }
1683 #endif
1684
1685 PyDoc_STRVAR(Xmlparsetype__doc__, "XML parser");
1686
1687 static PyTypeObject Xmlparsetype = {
1688 PyVarObject_HEAD_INIT(NULL, 0)
1689 "pyexpat.xmlparser", /*tp_name*/
1690 sizeof(xmlparseobject) + PyGC_HEAD_SIZE,/*tp_basicsize*/
1691 0, /*tp_itemsize*/
1692 /* methods */
1693 (destructor)xmlparse_dealloc, /*tp_dealloc*/
1694 (printfunc)0, /*tp_print*/
1695 (getattrfunc)xmlparse_getattr, /*tp_getattr*/
1696 (setattrfunc)xmlparse_setattr, /*tp_setattr*/
1697 (cmpfunc)0, /*tp_compare*/
1698 (reprfunc)0, /*tp_repr*/
1699 0, /*tp_as_number*/
1700 0, /*tp_as_sequence*/
1701 0, /*tp_as_mapping*/
1702 (hashfunc)0, /*tp_hash*/
1703 (ternaryfunc)0, /*tp_call*/
1704 (reprfunc)0, /*tp_str*/
1705 0, /* tp_getattro */
1706 0, /* tp_setattro */
1707 0, /* tp_as_buffer */
1708 #ifdef Py_TPFLAGS_HAVE_GC
1709 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /*tp_flags*/
1710 #else
1711 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_GC, /*tp_flags*/
1712 #endif
1713 Xmlparsetype__doc__, /* tp_doc - Documentation string */
1714 #ifdef WITH_CYCLE_GC
1715 (traverseproc)xmlparse_traverse, /* tp_traverse */
1716 (inquiry)xmlparse_clear /* tp_clear */
1717 #else
1718 0, 0
1719 #endif
1720 };
1721
1722 /* End of code for xmlparser objects */
1723 /* -------------------------------------------------------- */
1724
1725 PyDoc_STRVAR(pyexpat_ParserCreate__doc__,
1726 "ParserCreate([encoding[, namespace_separator]]) -> parser\n\
1727 Return a new XML parser object.");
1728
1729 static PyObject *
1730 pyexpat_ParserCreate(PyObject *notused, PyObject *args, PyObject *kw)
1731 {
1732 char *encoding = NULL;
1733 char *namespace_separator = NULL;
1734 PyObject *intern = NULL;
1735 PyObject *result;
1736 int intern_decref = 0;
1737 static char *kwlist[] = {"encoding", "namespace_separator",
1738 "intern", NULL};
1739
1740 if (!PyArg_ParseTupleAndKeywords(args, kw, "|zzO:ParserCreate", kwlist,
1741 &encoding, &namespace_separator, &intern))
1742 return NULL;
1743 if (namespace_separator != NULL
1744 && strlen(namespace_separator) > 1) {
1745 PyErr_SetString(PyExc_ValueError,
1746 "namespace_separator must be at most one"
1747 " character, omitted, or None");
1748 return NULL;
1749 }
1750 /* Explicitly passing None means no interning is desired.
1751 Not passing anything means that a new dictionary is used. */
1752 if (intern == Py_None)
1753 intern = NULL;
1754 else if (intern == NULL) {
1755 intern = PyDict_New();
1756 if (!intern)
1757 return NULL;
1758 intern_decref = 1;
1759 }
1760 else if (!PyDict_Check(intern)) {
1761 PyErr_SetString(PyExc_TypeError, "intern must be a dictionary");
1762 return NULL;
1763 }
1764
1765 result = newxmlparseobject(encoding, namespace_separator, intern);
1766 if (intern_decref) {
1767 Py_DECREF(intern);
1768 }
1769 return result;
1770 }
1771
1772 PyDoc_STRVAR(pyexpat_ErrorString__doc__,
1773 "ErrorString(errno) -> string\n\
1774 Returns string error for given number.");
1775
1776 static PyObject *
1777 pyexpat_ErrorString(PyObject *self, PyObject *args)
1778 {
1779 long code = 0;
1780
1781 if (!PyArg_ParseTuple(args, "l:ErrorString", &code))
1782 return NULL;
1783 return Py_BuildValue("z", XML_ErrorString((int)code));
1784 }
1785
1786 /* List of methods defined in the module */
1787
1788 static struct PyMethodDef pyexpat_methods[] = {
1789 {"ParserCreate", (PyCFunction)pyexpat_ParserCreate,
1790 METH_VARARGS|METH_KEYWORDS, pyexpat_ParserCreate__doc__},
1791 {"ErrorString", (PyCFunction)pyexpat_ErrorString,
1792 METH_VARARGS, pyexpat_ErrorString__doc__},
1793
1794 {NULL, (PyCFunction)NULL, 0, NULL} /* sentinel */
1795 };
1796
1797 /* Module docstring */
1798
1799 PyDoc_STRVAR(pyexpat_module_documentation,
1800 "Python wrapper for Expat parser.");
1801
1802 /* Initialization function for the module */
1803
1804 #ifndef MODULE_NAME
1805 #define MODULE_NAME "pyexpat"
1806 #endif
1807
1808 #ifndef MODULE_INITFUNC
1809 #define MODULE_INITFUNC initpyexpat
1810 #endif
1811
1812 #ifndef PyMODINIT_FUNC
1813 # ifdef MS_WINDOWS
1814 # define PyMODINIT_FUNC __declspec(dllexport) void
1815 # else
1816 # define PyMODINIT_FUNC void
1817 # endif
1818 #endif
1819
1820 PyMODINIT_FUNC MODULE_INITFUNC(void); /* avoid compiler warnings */
1821
1822 PyMODINIT_FUNC
1823 MODULE_INITFUNC(void)
1824 {
1825 PyObject *m, *d;
1826 PyObject *errmod_name = PyString_FromString(MODULE_NAME ".errors");
1827 PyObject *errors_module;
1828 PyObject *modelmod_name;
1829 PyObject *model_module;
1830 PyObject *sys_modules;
1831 PyObject *version;
1832 static struct PyExpat_CAPI capi;
1833 PyObject* capi_object;
1834
1835 if (errmod_name == NULL)
1836 return;
1837 modelmod_name = PyString_FromString(MODULE_NAME ".model");
1838 if (modelmod_name == NULL)
1839 return;
1840
1841 Py_TYPE(&Xmlparsetype) = &PyType_Type;
1842
1843 /* Create the module and add the functions */
1844 m = Py_InitModule3(MODULE_NAME, pyexpat_methods,
1845 pyexpat_module_documentation);
1846 if (m == NULL)
1847 return;
1848
1849 /* Add some symbolic constants to the module */
1850 if (ErrorObject == NULL) {
1851 ErrorObject = PyErr_NewException("xml.parsers.expat.ExpatError",
1852 NULL, NULL);
1853 if (ErrorObject == NULL)
1854 return;
1855 }
1856 Py_INCREF(ErrorObject);
1857 PyModule_AddObject(m, "error", ErrorObject);
1858 Py_INCREF(ErrorObject);
1859 PyModule_AddObject(m, "ExpatError", ErrorObject);
1860 Py_INCREF(&Xmlparsetype);
1861 PyModule_AddObject(m, "XMLParserType", (PyObject *) &Xmlparsetype);
1862
1863 version = PyString_FromString(PY_VERSION);
1864 if (!version)
1865 return;
1866 PyModule_AddObject(m, "__version__", version);
1867 PyModule_AddStringConstant(m, "EXPAT_VERSION",
1868 (char *) XML_ExpatVersion());
1869 {
1870 XML_Expat_Version info = XML_ExpatVersionInfo();
1871 PyModule_AddObject(m, "version_info",
1872 Py_BuildValue("(iii)", info.major,
1873 info.minor, info.micro));
1874 }
1875 #ifdef Py_USING_UNICODE
1876 init_template_buffer();
1877 #endif
1878 /* XXX When Expat supports some way of figuring out how it was
1879 compiled, this should check and set native_encoding
1880 appropriately.
1881 */
1882 PyModule_AddStringConstant(m, "native_encoding", "UTF-8");
1883
1884 sys_modules = PySys_GetObject("modules");
1885 d = PyModule_GetDict(m);
1886 errors_module = PyDict_GetItem(d, errmod_name);
1887 if (errors_module == NULL) {
1888 errors_module = PyModule_New(MODULE_NAME ".errors");
1889 if (errors_module != NULL) {
1890 PyDict_SetItem(sys_modules, errmod_name, errors_module);
1891 /* gives away the reference to errors_module */
1892 PyModule_AddObject(m, "errors", errors_module);
1893 }
1894 }
1895 Py_DECREF(errmod_name);
1896 model_module = PyDict_GetItem(d, modelmod_name);
1897 if (model_module == NULL) {
1898 model_module = PyModule_New(MODULE_NAME ".model");
1899 if (model_module != NULL) {
1900 PyDict_SetItem(sys_modules, modelmod_name, model_module);
1901 /* gives away the reference to model_module */
1902 PyModule_AddObject(m, "model", model_module);
1903 }
1904 }
1905 Py_DECREF(modelmod_name);
1906 if (errors_module == NULL || model_module == NULL)
1907 /* Don't core dump later! */
1908 return;
1909
1910 #if XML_COMBINED_VERSION > 19505
1911 {
1912 const XML_Feature *features = XML_GetFeatureList();
1913 PyObject *list = PyList_New(0);
1914 if (list == NULL)
1915 /* just ignore it */
1916 PyErr_Clear();
1917 else {
1918 int i = 0;
1919 for (; features[i].feature != XML_FEATURE_END; ++i) {
1920 int ok;
1921 PyObject *item = Py_BuildValue("si", features[i].name,
1922 features[i].value);
1923 if (item == NULL) {
1924 Py_DECREF(list);
1925 list = NULL;
1926 break;
1927 }
1928 ok = PyList_Append(list, item);
1929 Py_DECREF(item);
1930 if (ok < 0) {
1931 PyErr_Clear();
1932 break;
1933 }
1934 }
1935 if (list != NULL)
1936 PyModule_AddObject(m, "features", list);
1937 }
1938 }
1939 #endif
1940
1941 #define MYCONST(name) \
1942 PyModule_AddStringConstant(errors_module, #name, \
1943 (char*)XML_ErrorString(name))
1944
1945 MYCONST(XML_ERROR_NO_MEMORY);
1946 MYCONST(XML_ERROR_SYNTAX);
1947 MYCONST(XML_ERROR_NO_ELEMENTS);
1948 MYCONST(XML_ERROR_INVALID_TOKEN);
1949 MYCONST(XML_ERROR_UNCLOSED_TOKEN);
1950 MYCONST(XML_ERROR_PARTIAL_CHAR);
1951 MYCONST(XML_ERROR_TAG_MISMATCH);
1952 MYCONST(XML_ERROR_DUPLICATE_ATTRIBUTE);
1953 MYCONST(XML_ERROR_JUNK_AFTER_DOC_ELEMENT);
1954 MYCONST(XML_ERROR_PARAM_ENTITY_REF);
1955 MYCONST(XML_ERROR_UNDEFINED_ENTITY);
1956 MYCONST(XML_ERROR_RECURSIVE_ENTITY_REF);
1957 MYCONST(XML_ERROR_ASYNC_ENTITY);
1958 MYCONST(XML_ERROR_BAD_CHAR_REF);
1959 MYCONST(XML_ERROR_BINARY_ENTITY_REF);
1960 MYCONST(XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF);
1961 MYCONST(XML_ERROR_MISPLACED_XML_PI);
1962 MYCONST(XML_ERROR_UNKNOWN_ENCODING);
1963 MYCONST(XML_ERROR_INCORRECT_ENCODING);
1964 MYCONST(XML_ERROR_UNCLOSED_CDATA_SECTION);
1965 MYCONST(XML_ERROR_EXTERNAL_ENTITY_HANDLING);
1966 MYCONST(XML_ERROR_NOT_STANDALONE);
1967 MYCONST(XML_ERROR_UNEXPECTED_STATE);
1968 MYCONST(XML_ERROR_ENTITY_DECLARED_IN_PE);
1969 MYCONST(XML_ERROR_FEATURE_REQUIRES_XML_DTD);
1970 MYCONST(XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING);
1971 /* Added in Expat 1.95.7. */
1972 MYCONST(XML_ERROR_UNBOUND_PREFIX);
1973 /* Added in Expat 1.95.8. */
1974 MYCONST(XML_ERROR_UNDECLARING_PREFIX);
1975 MYCONST(XML_ERROR_INCOMPLETE_PE);
1976 MYCONST(XML_ERROR_XML_DECL);
1977 MYCONST(XML_ERROR_TEXT_DECL);
1978 MYCONST(XML_ERROR_PUBLICID);
1979 MYCONST(XML_ERROR_SUSPENDED);
1980 MYCONST(XML_ERROR_NOT_SUSPENDED);
1981 MYCONST(XML_ERROR_ABORTED);
1982 MYCONST(XML_ERROR_FINISHED);
1983 MYCONST(XML_ERROR_SUSPEND_PE);
1984
1985 PyModule_AddStringConstant(errors_module, "__doc__",
1986 "Constants used to describe error conditions.");
1987
1988 #undef MYCONST
1989
1990 #define MYCONST(c) PyModule_AddIntConstant(m, #c, c)
1991 MYCONST(XML_PARAM_ENTITY_PARSING_NEVER);
1992 MYCONST(XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE);
1993 MYCONST(XML_PARAM_ENTITY_PARSING_ALWAYS);
1994 #undef MYCONST
1995
1996 #define MYCONST(c) PyModule_AddIntConstant(model_module, #c, c)
1997 PyModule_AddStringConstant(model_module, "__doc__",
1998 "Constants used to interpret content model information.");
1999
2000 MYCONST(XML_CTYPE_EMPTY);
2001 MYCONST(XML_CTYPE_ANY);
2002 MYCONST(XML_CTYPE_MIXED);
2003 MYCONST(XML_CTYPE_NAME);
2004 MYCONST(XML_CTYPE_CHOICE);
2005 MYCONST(XML_CTYPE_SEQ);
2006
2007 MYCONST(XML_CQUANT_NONE);
2008 MYCONST(XML_CQUANT_OPT);
2009 MYCONST(XML_CQUANT_REP);
2010 MYCONST(XML_CQUANT_PLUS);
2011 #undef MYCONST
2012
2013 /* initialize pyexpat dispatch table */
2014 capi.size = sizeof(capi);
2015 capi.magic = PyExpat_CAPI_MAGIC;
2016 capi.MAJOR_VERSION = XML_MAJOR_VERSION;
2017 capi.MINOR_VERSION = XML_MINOR_VERSION;
2018 capi.MICRO_VERSION = XML_MICRO_VERSION;
2019 capi.ErrorString = XML_ErrorString;
2020 capi.GetErrorCode = XML_GetErrorCode;
2021 capi.GetErrorColumnNumber = XML_GetErrorColumnNumber;
2022 capi.GetErrorLineNumber = XML_GetErrorLineNumber;
2023 capi.Parse = XML_Parse;
2024 capi.ParserCreate_MM = XML_ParserCreate_MM;
2025 capi.ParserFree = XML_ParserFree;
2026 capi.SetCharacterDataHandler = XML_SetCharacterDataHandler;
2027 capi.SetCommentHandler = XML_SetCommentHandler;
2028 capi.SetDefaultHandlerExpand = XML_SetDefaultHandlerExpand;
2029 capi.SetElementHandler = XML_SetElementHandler;
2030 capi.SetNamespaceDeclHandler = XML_SetNamespaceDeclHandler;
2031 capi.SetProcessingInstructionHandler = XML_SetProcessingInstructionHandler;
2032 capi.SetUnknownEncodingHandler = XML_SetUnknownEncodingHandler;
2033 capi.SetUserData = XML_SetUserData;
2034
2035 /* export using capsule */
2036 capi_object = PyCapsule_New(&capi, PyExpat_CAPSULE_NAME, NULL);
2037 if (capi_object)
2038 PyModule_AddObject(m, "expat_CAPI", capi_object);
2039 }
2040
2041 static void
2042 clear_handlers(xmlparseobject *self, int initial)
2043 {
2044 int i = 0;
2045 PyObject *temp;
2046
2047 for (; handler_info[i].name != NULL; i++) {
2048 if (initial)
2049 self->handlers[i] = NULL;
2050 else {
2051 temp = self->handlers[i];
2052 self->handlers[i] = NULL;
2053 Py_XDECREF(temp);
2054 handler_info[i].setter(self->itself, NULL);
2055 }
2056 }
2057 }
2058
2059 static struct HandlerInfo handler_info[] = {
2060 {"StartElementHandler",
2061 (xmlhandlersetter)XML_SetStartElementHandler,
2062 (xmlhandler)my_StartElementHandler},
2063 {"EndElementHandler",
2064 (xmlhandlersetter)XML_SetEndElementHandler,
2065 (xmlhandler)my_EndElementHandler},
2066 {"ProcessingInstructionHandler",
2067 (xmlhandlersetter)XML_SetProcessingInstructionHandler,
2068 (xmlhandler)my_ProcessingInstructionHandler},
2069 {"CharacterDataHandler",
2070 (xmlhandlersetter)XML_SetCharacterDataHandler,
2071 (xmlhandler)my_CharacterDataHandler},
2072 {"UnparsedEntityDeclHandler",
2073 (xmlhandlersetter)XML_SetUnparsedEntityDeclHandler,
2074 (xmlhandler)my_UnparsedEntityDeclHandler},
2075 {"NotationDeclHandler",
2076 (xmlhandlersetter)XML_SetNotationDeclHandler,
2077 (xmlhandler)my_NotationDeclHandler},
2078 {"StartNamespaceDeclHandler",
2079 (xmlhandlersetter)XML_SetStartNamespaceDeclHandler,
2080 (xmlhandler)my_StartNamespaceDeclHandler},
2081 {"EndNamespaceDeclHandler",
2082 (xmlhandlersetter)XML_SetEndNamespaceDeclHandler,
2083 (xmlhandler)my_EndNamespaceDeclHandler},
2084 {"CommentHandler",
2085 (xmlhandlersetter)XML_SetCommentHandler,
2086 (xmlhandler)my_CommentHandler},
2087 {"StartCdataSectionHandler",
2088 (xmlhandlersetter)XML_SetStartCdataSectionHandler,
2089 (xmlhandler)my_StartCdataSectionHandler},
2090 {"EndCdataSectionHandler",
2091 (xmlhandlersetter)XML_SetEndCdataSectionHandler,
2092 (xmlhandler)my_EndCdataSectionHandler},
2093 {"DefaultHandler",
2094 (xmlhandlersetter)XML_SetDefaultHandler,
2095 (xmlhandler)my_DefaultHandler},
2096 {"DefaultHandlerExpand",
2097 (xmlhandlersetter)XML_SetDefaultHandlerExpand,
2098 (xmlhandler)my_DefaultHandlerExpandHandler},
2099 {"NotStandaloneHandler",
2100 (xmlhandlersetter)XML_SetNotStandaloneHandler,
2101 (xmlhandler)my_NotStandaloneHandler},
2102 {"ExternalEntityRefHandler",
2103 (xmlhandlersetter)XML_SetExternalEntityRefHandler,
2104 (xmlhandler)my_ExternalEntityRefHandler},
2105 {"StartDoctypeDeclHandler",
2106 (xmlhandlersetter)XML_SetStartDoctypeDeclHandler,
2107 (xmlhandler)my_StartDoctypeDeclHandler},
2108 {"EndDoctypeDeclHandler",
2109 (xmlhandlersetter)XML_SetEndDoctypeDeclHandler,
2110 (xmlhandler)my_EndDoctypeDeclHandler},
2111 {"EntityDeclHandler",
2112 (xmlhandlersetter)XML_SetEntityDeclHandler,
2113 (xmlhandler)my_EntityDeclHandler},
2114 {"XmlDeclHandler",
2115 (xmlhandlersetter)XML_SetXmlDeclHandler,
2116 (xmlhandler)my_XmlDeclHandler},
2117 {"ElementDeclHandler",
2118 (xmlhandlersetter)XML_SetElementDeclHandler,
2119 (xmlhandler)my_ElementDeclHandler},
2120 {"AttlistDeclHandler",
2121 (xmlhandlersetter)XML_SetAttlistDeclHandler,
2122 (xmlhandler)my_AttlistDeclHandler},
2123 #if XML_COMBINED_VERSION >= 19504
2124 {"SkippedEntityHandler",
2125 (xmlhandlersetter)XML_SetSkippedEntityHandler,
2126 (xmlhandler)my_SkippedEntityHandler},
2127 #endif
2128
2129 {NULL, NULL, NULL} /* sentinel */
2130 };