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mf/evr: Post sink marker events.
[wine.git] / dlls / xmllite / reader.c
bloba5a75c2988795f78045437dfedbb704e73b45981
1 /*
2 * IXmlReader implementation
3 *
4 * Copyright 2010, 2012-2013, 2016-2017 Nikolay Sivov
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #define COBJMACROS
22
23 #include <stdio.h>
24 #include <stdarg.h>
25 #include <assert.h>
26 #include "windef.h"
27 #include "winbase.h"
28 #include "initguid.h"
29 #include "objbase.h"
30 #include "xmllite.h"
31 #include "xmllite_private.h"
32
33 #include "wine/debug.h"
34 #include "wine/list.h"
35
36 WINE_DEFAULT_DEBUG_CHANNEL(xmllite);
37
38 /* not defined in public headers */
39 DEFINE_GUID(IID_IXmlReaderInput, 0x0b3ccc9b, 0x9214, 0x428b, 0xa2, 0xae, 0xef, 0x3a, 0xa8, 0x71, 0xaf, 0xda);
40
41 typedef enum
42 {
43 XmlReadInState_Initial,
44 XmlReadInState_XmlDecl,
45 XmlReadInState_Misc_DTD,
46 XmlReadInState_DTD,
47 XmlReadInState_DTD_Misc,
48 XmlReadInState_Element,
49 XmlReadInState_Content,
50 XmlReadInState_MiscEnd, /* optional Misc at the end of a document */
51 XmlReadInState_Eof
52 } XmlReaderInternalState;
53
54 /* This state denotes where parsing was interrupted by input problem.
55 Reader resumes parsing using this information. */
56 typedef enum
57 {
58 XmlReadResumeState_Initial,
59 XmlReadResumeState_PITarget,
60 XmlReadResumeState_PIBody,
61 XmlReadResumeState_CDATA,
62 XmlReadResumeState_Comment,
63 XmlReadResumeState_STag,
64 XmlReadResumeState_CharData,
65 XmlReadResumeState_Whitespace
66 } XmlReaderResumeState;
67
68 /* saved pointer index to resume from particular input position */
69 typedef enum
70 {
71 XmlReadResume_Name, /* PITarget, name for NCName, prefix for QName */
72 XmlReadResume_Local, /* local for QName */
73 XmlReadResume_Body, /* PI body, comment text, CDATA text, CharData text */
74 XmlReadResume_Last
75 } XmlReaderResume;
76
77 typedef enum
78 {
79 StringValue_LocalName,
80 StringValue_Prefix,
81 StringValue_QualifiedName,
82 StringValue_Value,
83 StringValue_Last
84 } XmlReaderStringValue;
85
86 BOOL is_namestartchar(WCHAR ch);
87
88 static const char *debugstr_nodetype(XmlNodeType nodetype)
89 {
90 static const char * const type_names[] =
91 {
92 "None",
93 "Element",
94 "Attribute",
95 "Text",
96 "CDATA",
97 "",
98 "",
99 "ProcessingInstruction",
100 "Comment",
101 "",
102 "DocumentType",
103 "",
104 "",
105 "Whitespace",
106 "",
107 "EndElement",
108 "",
109 "XmlDeclaration"
110 };
111
112 if (nodetype > _XmlNodeType_Last)
113 return wine_dbg_sprintf("unknown type=%d", nodetype);
114
115 return type_names[nodetype];
116 }
117
118 static const char *debugstr_reader_prop(XmlReaderProperty prop)
119 {
120 static const char * const prop_names[] =
121 {
122 "MultiLanguage",
123 "ConformanceLevel",
124 "RandomAccess",
125 "XmlResolver",
126 "DtdProcessing",
127 "ReadState",
128 "MaxElementDepth",
129 "MaxEntityExpansion"
130 };
131
132 if (prop > _XmlReaderProperty_Last)
133 return wine_dbg_sprintf("unknown property=%d", prop);
134
135 return prop_names[prop];
136 }
137
138 struct xml_encoding_data
139 {
140 const WCHAR *name;
141 xml_encoding enc;
142 UINT cp;
143 };
144
145 static const struct xml_encoding_data xml_encoding_map[] =
146 {
147 { L"US-ASCII", XmlEncoding_USASCII, 20127 },
148 { L"UTF-16", XmlEncoding_UTF16, 1200 },
149 { L"UTF-8", XmlEncoding_UTF8, CP_UTF8 },
150 };
151
152 const WCHAR *get_encoding_name(xml_encoding encoding)
153 {
154 return xml_encoding_map[encoding].name;
155 }
156
157 xml_encoding get_encoding_from_codepage(UINT codepage)
158 {
159 int i;
160 for (i = 0; i < ARRAY_SIZE(xml_encoding_map); i++)
161 {
162 if (xml_encoding_map[i].cp == codepage) return xml_encoding_map[i].enc;
163 }
164 return XmlEncoding_Unknown;
165 }
166
167 typedef struct
168 {
169 char *data;
170 UINT cur;
171 unsigned int allocated;
172 unsigned int written;
173 BOOL prev_cr;
174 } encoded_buffer;
175
176 typedef struct input_buffer input_buffer;
177
178 typedef struct
179 {
180 IXmlReaderInput IXmlReaderInput_iface;
181 LONG ref;
182 /* reference passed on IXmlReaderInput creation, is kept when input is created */
183 IUnknown *input;
184 IMalloc *imalloc;
185 xml_encoding encoding;
186 BOOL hint;
187 WCHAR *baseuri;
188 /* stream reference set after SetInput() call from reader,
189 stored as sequential stream, cause currently
190 optimizations possible with IStream aren't implemented */
191 ISequentialStream *stream;
192 input_buffer *buffer;
193 unsigned int pending : 1;
194 } xmlreaderinput;
195
196 static const struct IUnknownVtbl xmlreaderinputvtbl;
197
198 /* Structure to hold parsed string of specific length.
199
200 Reader stores node value as 'start' pointer, on request
201 a null-terminated version of it is allocated.
202
203 To init a strval variable use reader_init_strval(),
204 to set strval as a reader value use reader_set_strval().
205 */
206 typedef struct
207 {
208 WCHAR *str; /* allocated null-terminated string */
209 UINT len; /* length in WCHARs, altered after ReadValueChunk */
210 UINT start; /* input position where value starts */
211 } strval;
212
213 static WCHAR emptyW[] = L"";
214 static WCHAR xmlW[] = L"xml";
215 static WCHAR xmlnsW[] = L"xmlns";
216 static const strval strval_empty = { emptyW, 0 };
217 static const strval strval_xml = { xmlW, 3 };
218 static const strval strval_xmlns = { xmlnsW, 5 };
219
220 struct reader_position
221 {
222 UINT line_number;
223 UINT line_position;
224 };
225
226 enum attribute_flags
227 {
228 ATTRIBUTE_NS_DEFINITION = 0x1,
229 ATTRIBUTE_DEFAULT_NS_DEFINITION = 0x2,
230 };
231
232 struct attribute
233 {
234 struct list entry;
235 strval prefix;
236 strval localname;
237 strval qname;
238 strval value;
239 struct reader_position position;
240 unsigned int flags;
241 };
242
243 struct element
244 {
245 struct list entry;
246 strval prefix;
247 strval localname;
248 strval qname;
249 struct reader_position position;
250 };
251
252 struct ns
253 {
254 struct list entry;
255 strval prefix;
256 strval uri;
257 struct element *element;
258 };
259
260 typedef struct
261 {
262 IXmlReader IXmlReader_iface;
263 LONG ref;
264 xmlreaderinput *input;
265 IMalloc *imalloc;
266 XmlReadState state;
267 HRESULT error; /* error set on XmlReadState_Error */
268 XmlReaderInternalState instate;
269 XmlReaderResumeState resumestate;
270 XmlNodeType nodetype;
271 DtdProcessing dtdmode;
272 IXmlResolver *resolver;
273 IUnknown *mlang;
274 struct reader_position position;
275 struct list attrs; /* attributes list for current node */
276 struct attribute *attr; /* current attribute */
277 UINT attr_count;
278 struct list nsdef;
279 struct list ns;
280 struct list elements;
281 int chunk_read_off;
282 strval strvalues[StringValue_Last];
283 UINT depth;
284 UINT max_depth;
285 BOOL is_empty_element;
286 struct element empty_element; /* used for empty elements without end tag <a />,
287 and to keep <?xml reader position */
288 UINT resume[XmlReadResume_Last]; /* offsets used to resume reader */
289 } xmlreader;
290
291 struct input_buffer
292 {
293 encoded_buffer utf16;
294 encoded_buffer encoded;
295 UINT code_page;
296 xmlreaderinput *input;
297 };
298
299 static inline xmlreader *impl_from_IXmlReader(IXmlReader *iface)
300 {
301 return CONTAINING_RECORD(iface, xmlreader, IXmlReader_iface);
302 }
303
304 static inline xmlreaderinput *impl_from_IXmlReaderInput(IXmlReaderInput *iface)
305 {
306 return CONTAINING_RECORD(iface, xmlreaderinput, IXmlReaderInput_iface);
307 }
308
309 /* reader memory allocation functions */
310 static inline void *reader_alloc(xmlreader *reader, size_t len)
311 {
312 return m_alloc(reader->imalloc, len);
313 }
314
315 static inline void *reader_alloc_zero(xmlreader *reader, size_t len)
316 {
317 void *ret = reader_alloc(reader, len);
318 if (ret)
319 memset(ret, 0, len);
320 return ret;
321 }
322
323 static inline void reader_free(xmlreader *reader, void *mem)
324 {
325 m_free(reader->imalloc, mem);
326 }
327
328 /* Just return pointer from offset, no attempt to read more. */
329 static inline WCHAR *reader_get_ptr2(const xmlreader *reader, UINT offset)
330 {
331 encoded_buffer *buffer = &reader->input->buffer->utf16;
332 return (WCHAR*)buffer->data + offset;
333 }
334
335 static inline WCHAR *reader_get_strptr(const xmlreader *reader, const strval *v)
336 {
337 return v->str ? v->str : reader_get_ptr2(reader, v->start);
338 }
339
340 static HRESULT reader_strvaldup(xmlreader *reader, const strval *src, strval *dest)
341 {
342 *dest = *src;
343
344 if (src->str != strval_empty.str)
345 {
346 dest->str = reader_alloc(reader, (dest->len+1)*sizeof(WCHAR));
347 if (!dest->str) return E_OUTOFMEMORY;
348 memcpy(dest->str, reader_get_strptr(reader, src), dest->len*sizeof(WCHAR));
349 dest->str[dest->len] = 0;
350 dest->start = 0;
351 }
352
353 return S_OK;
354 }
355
356 /* reader input memory allocation functions */
357 static inline void *readerinput_alloc(xmlreaderinput *input, size_t len)
358 {
359 return m_alloc(input->imalloc, len);
360 }
361
362 static inline void *readerinput_realloc(xmlreaderinput *input, void *mem, size_t len)
363 {
364 return m_realloc(input->imalloc, mem, len);
365 }
366
367 static inline void readerinput_free(xmlreaderinput *input, void *mem)
368 {
369 m_free(input->imalloc, mem);
370 }
371
372 static inline WCHAR *readerinput_strdupW(xmlreaderinput *input, const WCHAR *str)
373 {
374 LPWSTR ret = NULL;
375
376 if(str) {
377 DWORD size;
378
379 size = (lstrlenW(str)+1)*sizeof(WCHAR);
380 ret = readerinput_alloc(input, size);
381 if (ret) memcpy(ret, str, size);
382 }
383
384 return ret;
385 }
386
387 /* This one frees stored string value if needed */
388 static void reader_free_strvalued(xmlreader *reader, strval *v)
389 {
390 if (v->str != strval_empty.str)
391 {
392 reader_free(reader, v->str);
393 *v = strval_empty;
394 }
395 }
396
397 static void reader_clear_attrs(xmlreader *reader)
398 {
399 struct attribute *attr, *attr2;
400 LIST_FOR_EACH_ENTRY_SAFE(attr, attr2, &reader->attrs, struct attribute, entry)
401 {
402 reader_free_strvalued(reader, &attr->localname);
403 reader_free_strvalued(reader, &attr->value);
404 reader_free(reader, attr);
405 }
406 list_init(&reader->attrs);
407 reader->attr_count = 0;
408 reader->attr = NULL;
409 }
410
411 /* attribute data holds pointers to buffer data, so buffer shrink is not possible
412 while we are on a node with attributes */
413 static HRESULT reader_add_attr(xmlreader *reader, strval *prefix, strval *localname, strval *qname,
414 strval *value, const struct reader_position *position, unsigned int flags)
415 {
416 struct attribute *attr;
417 HRESULT hr;
418
419 attr = reader_alloc(reader, sizeof(*attr));
420 if (!attr) return E_OUTOFMEMORY;
421
422 hr = reader_strvaldup(reader, localname, &attr->localname);
423 if (hr == S_OK)
424 {
425 hr = reader_strvaldup(reader, value, &attr->value);
426 if (hr != S_OK)
427 reader_free_strvalued(reader, &attr->value);
428 }
429 if (hr != S_OK)
430 {
431 reader_free(reader, attr);
432 return hr;
433 }
434
435 if (prefix)
436 attr->prefix = *prefix;
437 else
438 memset(&attr->prefix, 0, sizeof(attr->prefix));
439 attr->qname = qname ? *qname : *localname;
440 attr->position = *position;
441 attr->flags = flags;
442 list_add_tail(&reader->attrs, &attr->entry);
443 reader->attr_count++;
444
445 return S_OK;
446 }
447
448 /* Returns current element, doesn't check if reader is actually positioned on it. */
449 static struct element *reader_get_element(xmlreader *reader)
450 {
451 if (reader->is_empty_element)
452 return &reader->empty_element;
453
454 return LIST_ENTRY(list_head(&reader->elements), struct element, entry);
455 }
456
457 static inline void reader_init_strvalue(UINT start, UINT len, strval *v)
458 {
459 v->start = start;
460 v->len = len;
461 v->str = NULL;
462 }
463
464 static inline const char* debug_strval(const xmlreader *reader, const strval *v)
465 {
466 return debugstr_wn(reader_get_strptr(reader, v), v->len);
467 }
468
469 /* used to initialize from constant string */
470 static inline void reader_init_cstrvalue(WCHAR *str, UINT len, strval *v)
471 {
472 v->start = 0;
473 v->len = len;
474 v->str = str;
475 }
476
477 static void reader_free_strvalue(xmlreader *reader, XmlReaderStringValue type)
478 {
479 reader_free_strvalued(reader, &reader->strvalues[type]);
480 }
481
482 static void reader_free_strvalues(xmlreader *reader)
483 {
484 int type;
485 for (type = 0; type < StringValue_Last; type++)
486 reader_free_strvalue(reader, type);
487 }
488
489 /* This helper should only be used to test if strings are the same,
490 it doesn't try to sort. */
491 static inline int strval_eq(const xmlreader *reader, const strval *str1, const strval *str2)
492 {
493 if (str1->len != str2->len) return 0;
494 return !memcmp(reader_get_strptr(reader, str1), reader_get_strptr(reader, str2), str1->len*sizeof(WCHAR));
495 }
496
497 static void reader_clear_elements(xmlreader *reader)
498 {
499 struct element *elem, *elem2;
500 LIST_FOR_EACH_ENTRY_SAFE(elem, elem2, &reader->elements, struct element, entry)
501 {
502 reader_free_strvalued(reader, &elem->prefix);
503 reader_free_strvalued(reader, &elem->localname);
504 reader_free_strvalued(reader, &elem->qname);
505 reader_free(reader, elem);
506 }
507 list_init(&reader->elements);
508 reader_free_strvalued(reader, &reader->empty_element.localname);
509 reader_free_strvalued(reader, &reader->empty_element.qname);
510 reader->is_empty_element = FALSE;
511 }
512
513 static struct ns *reader_lookup_ns(xmlreader *reader, const strval *prefix)
514 {
515 struct list *nslist = prefix ? &reader->ns : &reader->nsdef;
516 struct ns *ns;
517
518 LIST_FOR_EACH_ENTRY_REV(ns, nslist, struct ns, entry) {
519 if (strval_eq(reader, prefix, &ns->prefix))
520 return ns;
521 }
522
523 return NULL;
524 }
525
526 static HRESULT reader_inc_depth(xmlreader *reader)
527 {
528 return (++reader->depth >= reader->max_depth && reader->max_depth) ? SC_E_MAXELEMENTDEPTH : S_OK;
529 }
530
531 static void reader_dec_depth(xmlreader *reader)
532 {
533 if (reader->depth)
534 reader->depth--;
535 }
536
537 static HRESULT reader_push_ns(xmlreader *reader, const strval *prefix, const strval *uri, BOOL def)
538 {
539 struct ns *ns;
540 HRESULT hr;
541
542 ns = reader_alloc(reader, sizeof(*ns));
543 if (!ns) return E_OUTOFMEMORY;
544
545 if (def)
546 memset(&ns->prefix, 0, sizeof(ns->prefix));
547 else {
548 hr = reader_strvaldup(reader, prefix, &ns->prefix);
549 if (FAILED(hr)) {
550 reader_free(reader, ns);
551 return hr;
552 }
553 }
554
555 hr = reader_strvaldup(reader, uri, &ns->uri);
556 if (FAILED(hr)) {
557 reader_free_strvalued(reader, &ns->prefix);
558 reader_free(reader, ns);
559 return hr;
560 }
561
562 ns->element = NULL;
563 list_add_head(def ? &reader->nsdef : &reader->ns, &ns->entry);
564 return hr;
565 }
566
567 static void reader_free_element(xmlreader *reader, struct element *element)
568 {
569 reader_free_strvalued(reader, &element->prefix);
570 reader_free_strvalued(reader, &element->localname);
571 reader_free_strvalued(reader, &element->qname);
572 reader_free(reader, element);
573 }
574
575 static void reader_mark_ns_nodes(xmlreader *reader, struct element *element)
576 {
577 struct ns *ns;
578
579 LIST_FOR_EACH_ENTRY(ns, &reader->ns, struct ns, entry) {
580 if (ns->element)
581 break;
582 ns->element = element;
583 }
584
585 LIST_FOR_EACH_ENTRY(ns, &reader->nsdef, struct ns, entry) {
586 if (ns->element)
587 break;
588 ns->element = element;
589 }
590 }
591
592 static HRESULT reader_push_element(xmlreader *reader, strval *prefix, strval *localname,
593 strval *qname, const struct reader_position *position)
594 {
595 struct element *element;
596 HRESULT hr;
597
598 element = reader_alloc_zero(reader, sizeof(*element));
599 if (!element)
600 return E_OUTOFMEMORY;
601
602 if ((hr = reader_strvaldup(reader, prefix, &element->prefix)) == S_OK &&
603 (hr = reader_strvaldup(reader, localname, &element->localname)) == S_OK &&
604 (hr = reader_strvaldup(reader, qname, &element->qname)) == S_OK)
605 {
606 list_add_head(&reader->elements, &element->entry);
607 reader_mark_ns_nodes(reader, element);
608 reader->is_empty_element = FALSE;
609 element->position = *position;
610 }
611 else
612 reader_free_element(reader, element);
613
614 return hr;
615 }
616
617 static void reader_pop_ns_nodes(xmlreader *reader, struct element *element)
618 {
619 struct ns *ns, *ns2;
620
621 LIST_FOR_EACH_ENTRY_SAFE_REV(ns, ns2, &reader->ns, struct ns, entry) {
622 if (ns->element != element)
623 break;
624
625 list_remove(&ns->entry);
626 reader_free_strvalued(reader, &ns->prefix);
627 reader_free_strvalued(reader, &ns->uri);
628 reader_free(reader, ns);
629 }
630
631 if (!list_empty(&reader->nsdef)) {
632 ns = LIST_ENTRY(list_head(&reader->nsdef), struct ns, entry);
633 if (ns->element == element) {
634 list_remove(&ns->entry);
635 reader_free_strvalued(reader, &ns->prefix);
636 reader_free_strvalued(reader, &ns->uri);
637 reader_free(reader, ns);
638 }
639 }
640 }
641
642 static void reader_pop_element(xmlreader *reader)
643 {
644 struct element *element;
645
646 if (list_empty(&reader->elements))
647 return;
648
649 element = LIST_ENTRY(list_head(&reader->elements), struct element, entry);
650 list_remove(&element->entry);
651
652 reader_pop_ns_nodes(reader, element);
653 reader_free_element(reader, element);
654
655 /* It was a root element, the rest is expected as Misc */
656 if (list_empty(&reader->elements))
657 reader->instate = XmlReadInState_MiscEnd;
658 }
659
660 /* Always make a copy, cause strings are supposed to be null terminated. Null pointer for 'value'
661 means node value is to be determined. */
662 static void reader_set_strvalue(xmlreader *reader, XmlReaderStringValue type, const strval *value)
663 {
664 strval *v = &reader->strvalues[type];
665
666 reader_free_strvalue(reader, type);
667 if (!value)
668 {
669 v->str = NULL;
670 v->start = 0;
671 v->len = 0;
672 return;
673 }
674
675 if (value->str == strval_empty.str)
676 *v = *value;
677 else
678 {
679 if (type == StringValue_Value)
680 {
681 /* defer allocation for value string */
682 v->str = NULL;
683 v->start = value->start;
684 v->len = value->len;
685 }
686 else
687 {
688 v->str = reader_alloc(reader, (value->len + 1)*sizeof(WCHAR));
689 memcpy(v->str, reader_get_strptr(reader, value), value->len*sizeof(WCHAR));
690 v->str[value->len] = 0;
691 v->len = value->len;
692 }
693 }
694 }
695
696 static inline int is_reader_pending(xmlreader *reader)
697 {
698 return reader->input->pending;
699 }
700
701 static HRESULT init_encoded_buffer(xmlreaderinput *input, encoded_buffer *buffer)
702 {
703 const int initial_len = 0x2000;
704 buffer->data = readerinput_alloc(input, initial_len);
705 if (!buffer->data) return E_OUTOFMEMORY;
706
707 memset(buffer->data, 0, 4);
708 buffer->cur = 0;
709 buffer->allocated = initial_len;
710 buffer->written = 0;
711 buffer->prev_cr = FALSE;
712
713 return S_OK;
714 }
715
716 static void free_encoded_buffer(xmlreaderinput *input, encoded_buffer *buffer)
717 {
718 readerinput_free(input, buffer->data);
719 }
720
721 HRESULT get_code_page(xml_encoding encoding, UINT *cp)
722 {
723 if (encoding == XmlEncoding_Unknown)
724 {
725 FIXME("unsupported encoding %d\n", encoding);
726 return E_NOTIMPL;
727 }
728
729 *cp = xml_encoding_map[encoding].cp;
730
731 return S_OK;
732 }
733
734 xml_encoding parse_encoding_name(const WCHAR *name, int len)
735 {
736 int min, max, n, c;
737
738 if (!name) return XmlEncoding_Unknown;
739
740 min = 0;
741 max = ARRAY_SIZE(xml_encoding_map) - 1;
742
743 while (min <= max)
744 {
745 n = (min+max)/2;
746
747 if (len != -1)
748 c = wcsnicmp(xml_encoding_map[n].name, name, len);
749 else
750 c = wcsicmp(xml_encoding_map[n].name, name);
751 if (!c)
752 return xml_encoding_map[n].enc;
753
754 if (c > 0)
755 max = n-1;
756 else
757 min = n+1;
758 }
759
760 return XmlEncoding_Unknown;
761 }
762
763 static HRESULT alloc_input_buffer(xmlreaderinput *input)
764 {
765 input_buffer *buffer;
766 HRESULT hr;
767
768 input->buffer = NULL;
769
770 buffer = readerinput_alloc(input, sizeof(*buffer));
771 if (!buffer) return E_OUTOFMEMORY;
772
773 buffer->input = input;
774 buffer->code_page = ~0; /* code page is unknown at this point */
775 hr = init_encoded_buffer(input, &buffer->utf16);
776 if (hr != S_OK) {
777 readerinput_free(input, buffer);
778 return hr;
779 }
780
781 hr = init_encoded_buffer(input, &buffer->encoded);
782 if (hr != S_OK) {
783 free_encoded_buffer(input, &buffer->utf16);
784 readerinput_free(input, buffer);
785 return hr;
786 }
787
788 input->buffer = buffer;
789 return S_OK;
790 }
791
792 static void free_input_buffer(input_buffer *buffer)
793 {
794 free_encoded_buffer(buffer->input, &buffer->encoded);
795 free_encoded_buffer(buffer->input, &buffer->utf16);
796 readerinput_free(buffer->input, buffer);
797 }
798
799 static void readerinput_release_stream(xmlreaderinput *readerinput)
800 {
801 if (readerinput->stream) {
802 ISequentialStream_Release(readerinput->stream);
803 readerinput->stream = NULL;
804 }
805 }
806
807 /* Queries already stored interface for IStream/ISequentialStream.
808 Interface supplied on creation will be overwritten */
809 static inline HRESULT readerinput_query_for_stream(xmlreaderinput *readerinput)
810 {
811 HRESULT hr;
812
813 readerinput_release_stream(readerinput);
814 hr = IUnknown_QueryInterface(readerinput->input, &IID_IStream, (void**)&readerinput->stream);
815 if (hr != S_OK)
816 hr = IUnknown_QueryInterface(readerinput->input, &IID_ISequentialStream, (void**)&readerinput->stream);
817
818 return hr;
819 }
820
821 /* reads a chunk to raw buffer */
822 static HRESULT readerinput_growraw(xmlreaderinput *readerinput)
823 {
824 encoded_buffer *buffer = &readerinput->buffer->encoded;
825 /* to make sure aligned length won't exceed allocated length */
826 ULONG len = buffer->allocated - buffer->written - 4;
827 ULONG read;
828 HRESULT hr;
829
830 /* always try to get aligned to 4 bytes, so the only case we can get partially read characters is
831 variable width encodings like UTF-8 */
832 len = (len + 3) & ~3;
833 /* try to use allocated space or grow */
834 if (buffer->allocated - buffer->written < len)
835 {
836 buffer->allocated *= 2;
837 buffer->data = readerinput_realloc(readerinput, buffer->data, buffer->allocated);
838 len = buffer->allocated - buffer->written;
839 }
840
841 read = 0;
842 hr = ISequentialStream_Read(readerinput->stream, buffer->data + buffer->written, len, &read);
843 TRACE("written=%d, alloc=%d, requested=%d, read=%d, ret=0x%08x\n", buffer->written, buffer->allocated, len, read, hr);
844 readerinput->pending = hr == E_PENDING;
845 if (FAILED(hr)) return hr;
846 buffer->written += read;
847 if (!buffer->written)
848 return MX_E_INPUTEND;
849
850 return hr;
851 }
852
853 /* grows UTF-16 buffer so it has at least 'length' WCHAR chars free on return */
854 static void readerinput_grow(xmlreaderinput *readerinput, int length)
855 {
856 encoded_buffer *buffer = &readerinput->buffer->utf16;
857
858 length *= sizeof(WCHAR);
859 /* grow if needed, plus 4 bytes to be sure null terminator will fit in */
860 if (buffer->allocated < buffer->written + length + 4)
861 {
862 int grown_size = max(2*buffer->allocated, buffer->allocated + length);
863 buffer->data = readerinput_realloc(readerinput, buffer->data, grown_size);
864 buffer->allocated = grown_size;
865 }
866 }
867
868 static inline BOOL readerinput_is_utf8(xmlreaderinput *readerinput)
869 {
870 static const char startA[] = {'<','?'};
871 static const char commentA[] = {'<','!'};
872 encoded_buffer *buffer = &readerinput->buffer->encoded;
873 unsigned char *ptr = (unsigned char*)buffer->data;
874
875 return !memcmp(buffer->data, startA, sizeof(startA)) ||
876 !memcmp(buffer->data, commentA, sizeof(commentA)) ||
877 /* test start byte */
878 (ptr[0] == '<' &&
879 (
880 (ptr[1] && (ptr[1] <= 0x7f)) ||
881 (buffer->data[1] >> 5) == 0x6 || /* 2 bytes */
882 (buffer->data[1] >> 4) == 0xe || /* 3 bytes */
883 (buffer->data[1] >> 3) == 0x1e) /* 4 bytes */
884 );
885 }
886
887 static HRESULT readerinput_detectencoding(xmlreaderinput *readerinput, xml_encoding *enc)
888 {
889 encoded_buffer *buffer = &readerinput->buffer->encoded;
890 static const char utf8bom[] = {0xef,0xbb,0xbf};
891 static const char utf16lebom[] = {0xff,0xfe};
892 WCHAR *ptrW;
893
894 *enc = XmlEncoding_Unknown;
895
896 if (buffer->written <= 3)
897 {
898 HRESULT hr = readerinput_growraw(readerinput);
899 if (FAILED(hr)) return hr;
900 if (buffer->written < 3) return MX_E_INPUTEND;
901 }
902
903 ptrW = (WCHAR *)buffer->data;
904 /* try start symbols if we have enough data to do that, input buffer should contain
905 first chunk already */
906 if (readerinput_is_utf8(readerinput))
907 *enc = XmlEncoding_UTF8;
908 else if (*ptrW == '<')
909 {
910 ptrW++;
911 if (*ptrW == '?' || *ptrW == '!' || is_namestartchar(*ptrW))
912 *enc = XmlEncoding_UTF16;
913 }
914 /* try with BOM now */
915 else if (!memcmp(buffer->data, utf8bom, sizeof(utf8bom)))
916 {
917 buffer->cur += sizeof(utf8bom);
918 *enc = XmlEncoding_UTF8;
919 }
920 else if (!memcmp(buffer->data, utf16lebom, sizeof(utf16lebom)))
921 {
922 buffer->cur += sizeof(utf16lebom);
923 *enc = XmlEncoding_UTF16;
924 }
925
926 return S_OK;
927 }
928
929 static int readerinput_get_utf8_convlen(xmlreaderinput *readerinput)
930 {
931 encoded_buffer *buffer = &readerinput->buffer->encoded;
932 int len = buffer->written;
933
934 assert(len);
935
936 /* complete single byte char */
937 if (!(buffer->data[len-1] & 0x80)) return len;
938
939 /* find start byte of multibyte char */
940 while (--len && !(buffer->data[len] & 0xc0))
941 ;
942
943 return len;
944 }
945
946 /* Returns byte length of complete char sequence for buffer code page,
947 it's relative to current buffer position which is currently used for BOM handling
948 only. */
949 static int readerinput_get_convlen(xmlreaderinput *readerinput)
950 {
951 encoded_buffer *buffer = &readerinput->buffer->encoded;
952 int len;
953
954 if (readerinput->buffer->code_page == CP_UTF8)
955 len = readerinput_get_utf8_convlen(readerinput);
956 else
957 len = buffer->written;
958
959 TRACE("%d\n", len - buffer->cur);
960 return len - buffer->cur;
961 }
962
963 /* It's possible that raw buffer has some leftovers from last conversion - some char
964 sequence that doesn't represent a full code point. Length argument should be calculated with
965 readerinput_get_convlen(), if it's -1 it will be calculated here. */
966 static void readerinput_shrinkraw(xmlreaderinput *readerinput, int len)
967 {
968 encoded_buffer *buffer = &readerinput->buffer->encoded;
969
970 if (len == -1)
971 len = readerinput_get_convlen(readerinput);
972
973 assert(len >= 0);
974 memmove(buffer->data, buffer->data + buffer->cur + (buffer->written - len), len);
975 /* everything below cur is lost too */
976 buffer->written -= len + buffer->cur;
977 /* after this point we don't need cur offset really,
978 it's used only to mark where actual data begins when first chunk is read */
979 buffer->cur = 0;
980 }
981
982 static void fixup_buffer_cr(encoded_buffer *buffer, int off)
983 {
984 BOOL prev_cr = buffer->prev_cr;
985 const WCHAR *src;
986 WCHAR *dest;
987
988 src = dest = (WCHAR*)buffer->data + off;
989 while ((const char*)src < buffer->data + buffer->written)
990 {
991 if (*src == '\r')
992 {
993 *dest++ = '\n';
994 src++;
995 prev_cr = TRUE;
996 continue;
997 }
998 if(prev_cr && *src == '\n')
999 src++;
1000 else
1001 *dest++ = *src++;
1002 prev_cr = FALSE;
1003 }
1004
1005 buffer->written = (char*)dest - buffer->data;
1006 buffer->prev_cr = prev_cr;
1007 *dest = 0;
1008 }
1009
1010 /* note that raw buffer content is kept */
1011 static void readerinput_switchencoding(xmlreaderinput *readerinput, xml_encoding enc)
1012 {
1013 encoded_buffer *src = &readerinput->buffer->encoded;
1014 encoded_buffer *dest = &readerinput->buffer->utf16;
1015 int len, dest_len;
1016 UINT cp = ~0u;
1017 HRESULT hr;
1018 WCHAR *ptr;
1019
1020 hr = get_code_page(enc, &cp);
1021 if (FAILED(hr)) return;
1022
1023 readerinput->buffer->code_page = cp;
1024 len = readerinput_get_convlen(readerinput);
1025
1026 TRACE("switching to cp %d\n", cp);
1027
1028 /* just copy in this case */
1029 if (enc == XmlEncoding_UTF16)
1030 {
1031 readerinput_grow(readerinput, len);
1032 memcpy(dest->data, src->data + src->cur, len);
1033 dest->written += len*sizeof(WCHAR);
1034 }
1035 else
1036 {
1037 dest_len = MultiByteToWideChar(cp, 0, src->data + src->cur, len, NULL, 0);
1038 readerinput_grow(readerinput, dest_len);
1039 ptr = (WCHAR*)dest->data;
1040 MultiByteToWideChar(cp, 0, src->data + src->cur, len, ptr, dest_len);
1041 ptr[dest_len] = 0;
1042 dest->written += dest_len*sizeof(WCHAR);
1043 }
1044
1045 fixup_buffer_cr(dest, 0);
1046 }
1047
1048 /* shrinks parsed data a buffer begins with */
1049 static void reader_shrink(xmlreader *reader)
1050 {
1051 encoded_buffer *buffer = &reader->input->buffer->utf16;
1052
1053 /* avoid to move too often using threshold shrink length */
1054 if (buffer->cur*sizeof(WCHAR) > buffer->written / 2)
1055 {
1056 buffer->written -= buffer->cur*sizeof(WCHAR);
1057 memmove(buffer->data, (WCHAR*)buffer->data + buffer->cur, buffer->written);
1058 buffer->cur = 0;
1059 *(WCHAR*)&buffer->data[buffer->written] = 0;
1060 }
1061 }
1062
1063 /* This is a normal way for reader to get new data converted from raw buffer to utf16 buffer.
1064 It won't attempt to shrink but will grow destination buffer if needed */
1065 static HRESULT reader_more(xmlreader *reader)
1066 {
1067 xmlreaderinput *readerinput = reader->input;
1068 encoded_buffer *src = &readerinput->buffer->encoded;
1069 encoded_buffer *dest = &readerinput->buffer->utf16;
1070 UINT cp = readerinput->buffer->code_page;
1071 int len, dest_len, prev_len;
1072 HRESULT hr;
1073 WCHAR *ptr;
1074
1075 /* get some raw data from stream first */
1076 if (FAILED(hr = readerinput_growraw(readerinput)))
1077 return hr;
1078
1079 len = readerinput_get_convlen(readerinput);
1080 prev_len = dest->written / sizeof(WCHAR);
1081
1082 /* just copy for UTF-16 case */
1083 if (cp == 1200)
1084 {
1085 readerinput_grow(readerinput, len);
1086 memcpy(dest->data + dest->written, src->data + src->cur, len);
1087 dest->written += len*sizeof(WCHAR);
1088 }
1089 else
1090 {
1091 dest_len = MultiByteToWideChar(cp, 0, src->data + src->cur, len, NULL, 0);
1092 readerinput_grow(readerinput, dest_len);
1093 ptr = (WCHAR*)(dest->data + dest->written);
1094 MultiByteToWideChar(cp, 0, src->data + src->cur, len, ptr, dest_len);
1095 ptr[dest_len] = 0;
1096 dest->written += dest_len*sizeof(WCHAR);
1097 /* get rid of processed data */
1098 readerinput_shrinkraw(readerinput, len);
1099 }
1100
1101 fixup_buffer_cr(dest, prev_len);
1102 return hr;
1103 }
1104
1105 static inline UINT reader_get_cur(xmlreader *reader)
1106 {
1107 return reader->input->buffer->utf16.cur;
1108 }
1109
1110 static inline WCHAR *reader_get_ptr(xmlreader *reader)
1111 {
1112 encoded_buffer *buffer = &reader->input->buffer->utf16;
1113 WCHAR *ptr = (WCHAR*)buffer->data + buffer->cur;
1114 if (!*ptr) reader_more(reader);
1115 return (WCHAR*)buffer->data + buffer->cur;
1116 }
1117
1118 static int reader_cmp(xmlreader *reader, const WCHAR *str)
1119 {
1120 int i=0;
1121 const WCHAR *ptr = reader_get_ptr(reader);
1122 while (str[i])
1123 {
1124 if (!ptr[i])
1125 {
1126 reader_more(reader);
1127 ptr = reader_get_ptr(reader);
1128 }
1129 if (str[i] != ptr[i])
1130 return ptr[i] - str[i];
1131 i++;
1132 }
1133 return 0;
1134 }
1135
1136 static void reader_update_position(xmlreader *reader, WCHAR ch)
1137 {
1138 if (ch == '\r')
1139 reader->position.line_position = 1;
1140 else if (ch == '\n')
1141 {
1142 reader->position.line_number++;
1143 reader->position.line_position = 1;
1144 }
1145 else
1146 reader->position.line_position++;
1147 }
1148
1149 /* moves cursor n WCHARs forward */
1150 static void reader_skipn(xmlreader *reader, int n)
1151 {
1152 encoded_buffer *buffer = &reader->input->buffer->utf16;
1153 const WCHAR *ptr;
1154
1155 while (*(ptr = reader_get_ptr(reader)) && n--)
1156 {
1157 reader_update_position(reader, *ptr);
1158 buffer->cur++;
1159 }
1160 }
1161
1162 static inline BOOL is_wchar_space(WCHAR ch)
1163 {
1164 return ch == ' ' || ch == '\t' || ch == '\r' || ch == '\n';
1165 }
1166
1167 /* [3] S ::= (#x20 | #x9 | #xD | #xA)+ */
1168 static int reader_skipspaces(xmlreader *reader)
1169 {
1170 const WCHAR *ptr = reader_get_ptr(reader);
1171 UINT start = reader_get_cur(reader);
1172
1173 while (is_wchar_space(*ptr))
1174 {
1175 reader_skipn(reader, 1);
1176 ptr = reader_get_ptr(reader);
1177 }
1178
1179 return reader_get_cur(reader) - start;
1180 }
1181
1182 /* [26] VersionNum ::= '1.' [0-9]+ */
1183 static HRESULT reader_parse_versionnum(xmlreader *reader, strval *val)
1184 {
1185 WCHAR *ptr, *ptr2;
1186 UINT start;
1187
1188 if (reader_cmp(reader, L"1.")) return WC_E_XMLDECL;
1189
1190 start = reader_get_cur(reader);
1191 /* skip "1." */
1192 reader_skipn(reader, 2);
1193
1194 ptr2 = ptr = reader_get_ptr(reader);
1195 while (*ptr >= '0' && *ptr <= '9')
1196 {
1197 reader_skipn(reader, 1);
1198 ptr = reader_get_ptr(reader);
1199 }
1200
1201 if (ptr2 == ptr) return WC_E_DIGIT;
1202 reader_init_strvalue(start, reader_get_cur(reader)-start, val);
1203 TRACE("version=%s\n", debug_strval(reader, val));
1204 return S_OK;
1205 }
1206
1207 /* [25] Eq ::= S? '=' S? */
1208 static HRESULT reader_parse_eq(xmlreader *reader)
1209 {
1210 reader_skipspaces(reader);
1211 if (reader_cmp(reader, L"=")) return WC_E_EQUAL;
1212 /* skip '=' */
1213 reader_skipn(reader, 1);
1214 reader_skipspaces(reader);
1215 return S_OK;
1216 }
1217
1218 static BOOL reader_is_quote(xmlreader *reader)
1219 {
1220 return !reader_cmp(reader, L"\'") || !reader_cmp(reader, L"\"");
1221 }
1222
1223 /* [24] VersionInfo ::= S 'version' Eq ("'" VersionNum "'" | '"' VersionNum '"') */
1224 static HRESULT reader_parse_versioninfo(xmlreader *reader)
1225 {
1226 struct reader_position position;
1227 strval val, name;
1228 HRESULT hr;
1229
1230 if (!reader_skipspaces(reader)) return WC_E_WHITESPACE;
1231
1232 position = reader->position;
1233 if (reader_cmp(reader, L"version")) return WC_E_XMLDECL;
1234 reader_init_strvalue(reader_get_cur(reader), 7, &name);
1235 /* skip 'version' */
1236 reader_skipn(reader, 7);
1237
1238 hr = reader_parse_eq(reader);
1239 if (FAILED(hr)) return hr;
1240
1241 if (!reader_is_quote(reader))
1242 return WC_E_QUOTE;
1243 /* skip "'"|'"' */
1244 reader_skipn(reader, 1);
1245
1246 hr = reader_parse_versionnum(reader, &val);
1247 if (FAILED(hr)) return hr;
1248
1249 if (!reader_is_quote(reader))
1250 return WC_E_QUOTE;
1251
1252 /* skip "'"|'"' */
1253 reader_skipn(reader, 1);
1254
1255 return reader_add_attr(reader, NULL, &name, NULL, &val, &position, 0);
1256 }
1257
1258 /* ([A-Za-z0-9._] | '-') */
1259 static inline BOOL is_wchar_encname(WCHAR ch)
1260 {
1261 return ((ch >= 'A' && ch <= 'Z') ||
1262 (ch >= 'a' && ch <= 'z') ||
1263 (ch >= '0' && ch <= '9') ||
1264 (ch == '.') || (ch == '_') ||
1265 (ch == '-'));
1266 }
1267
1268 /* [81] EncName ::= [A-Za-z] ([A-Za-z0-9._] | '-')* */
1269 static HRESULT reader_parse_encname(xmlreader *reader, strval *val)
1270 {
1271 WCHAR *start = reader_get_ptr(reader), *ptr;
1272 xml_encoding enc;
1273 int len;
1274
1275 if ((*start < 'A' || *start > 'Z') && (*start < 'a' || *start > 'z'))
1276 return WC_E_ENCNAME;
1277
1278 val->start = reader_get_cur(reader);
1279
1280 ptr = start;
1281 while (is_wchar_encname(*++ptr))
1282 ;
1283
1284 len = ptr - start;
1285 enc = parse_encoding_name(start, len);
1286 TRACE("encoding name %s\n", debugstr_wn(start, len));
1287 val->str = start;
1288 val->len = len;
1289
1290 if (enc == XmlEncoding_Unknown)
1291 return WC_E_ENCNAME;
1292
1293 /* skip encoding name */
1294 reader_skipn(reader, len);
1295 return S_OK;
1296 }
1297
1298 /* [80] EncodingDecl ::= S 'encoding' Eq ('"' EncName '"' | "'" EncName "'" ) */
1299 static HRESULT reader_parse_encdecl(xmlreader *reader)
1300 {
1301 struct reader_position position;
1302 strval name, val;
1303 HRESULT hr;
1304
1305 if (!reader_skipspaces(reader)) return S_FALSE;
1306
1307 position = reader->position;
1308 if (reader_cmp(reader, L"encoding")) return S_FALSE;
1309 name.str = reader_get_ptr(reader);
1310 name.start = reader_get_cur(reader);
1311 name.len = 8;
1312 /* skip 'encoding' */
1313 reader_skipn(reader, 8);
1314
1315 hr = reader_parse_eq(reader);
1316 if (FAILED(hr)) return hr;
1317
1318 if (!reader_is_quote(reader))
1319 return WC_E_QUOTE;
1320 /* skip "'"|'"' */
1321 reader_skipn(reader, 1);
1322
1323 hr = reader_parse_encname(reader, &val);
1324 if (FAILED(hr)) return hr;
1325
1326 if (!reader_is_quote(reader))
1327 return WC_E_QUOTE;
1328
1329 /* skip "'"|'"' */
1330 reader_skipn(reader, 1);
1331
1332 return reader_add_attr(reader, NULL, &name, NULL, &val, &position, 0);
1333 }
1334
1335 /* [32] SDDecl ::= S 'standalone' Eq (("'" ('yes' | 'no') "'") | ('"' ('yes' | 'no') '"')) */
1336 static HRESULT reader_parse_sddecl(xmlreader *reader)
1337 {
1338 struct reader_position position;
1339 strval name, val;
1340 UINT start;
1341 HRESULT hr;
1342
1343 if (!reader_skipspaces(reader)) return S_FALSE;
1344
1345 position = reader->position;
1346 if (reader_cmp(reader, L"standalone")) return S_FALSE;
1347 reader_init_strvalue(reader_get_cur(reader), 10, &name);
1348 /* skip 'standalone' */
1349 reader_skipn(reader, 10);
1350
1351 hr = reader_parse_eq(reader);
1352 if (FAILED(hr)) return hr;
1353
1354 if (!reader_is_quote(reader))
1355 return WC_E_QUOTE;
1356 /* skip "'"|'"' */
1357 reader_skipn(reader, 1);
1358
1359 if (reader_cmp(reader, L"yes") && reader_cmp(reader, L"no"))
1360 return WC_E_XMLDECL;
1361
1362 start = reader_get_cur(reader);
1363 /* skip 'yes'|'no' */
1364 reader_skipn(reader, reader_cmp(reader, L"yes") ? 2 : 3);
1365 reader_init_strvalue(start, reader_get_cur(reader)-start, &val);
1366 TRACE("standalone=%s\n", debug_strval(reader, &val));
1367
1368 if (!reader_is_quote(reader))
1369 return WC_E_QUOTE;
1370 /* skip "'"|'"' */
1371 reader_skipn(reader, 1);
1372
1373 return reader_add_attr(reader, NULL, &name, NULL, &val, &position, 0);
1374 }
1375
1376 /* [23] XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>' */
1377 static HRESULT reader_parse_xmldecl(xmlreader *reader)
1378 {
1379 struct reader_position position;
1380 HRESULT hr;
1381
1382 if (reader_cmp(reader, L"<?xml "))
1383 return S_FALSE;
1384
1385 reader_skipn(reader, 2);
1386 position = reader->position;
1387 reader_skipn(reader, 3);
1388 hr = reader_parse_versioninfo(reader);
1389 if (FAILED(hr))
1390 return hr;
1391
1392 hr = reader_parse_encdecl(reader);
1393 if (FAILED(hr))
1394 return hr;
1395
1396 hr = reader_parse_sddecl(reader);
1397 if (FAILED(hr))
1398 return hr;
1399
1400 reader_skipspaces(reader);
1401 if (reader_cmp(reader, L"?>"))
1402 return WC_E_XMLDECL;
1403
1404 /* skip '?>' */
1405 reader_skipn(reader, 2);
1406
1407 reader->nodetype = XmlNodeType_XmlDeclaration;
1408 reader->empty_element.position = position;
1409 reader_set_strvalue(reader, StringValue_LocalName, &strval_xml);
1410 reader_set_strvalue(reader, StringValue_QualifiedName, &strval_xml);
1411
1412 return S_OK;
1413 }
1414
1415 /* [15] Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->' */
1416 static HRESULT reader_parse_comment(xmlreader *reader)
1417 {
1418 WCHAR *ptr;
1419 UINT start;
1420
1421 if (reader->resumestate == XmlReadResumeState_Comment)
1422 {
1423 start = reader->resume[XmlReadResume_Body];
1424 ptr = reader_get_ptr(reader);
1425 }
1426 else
1427 {
1428 /* skip '<!--' */
1429 reader_skipn(reader, 4);
1430 reader_shrink(reader);
1431 ptr = reader_get_ptr(reader);
1432 start = reader_get_cur(reader);
1433 reader->nodetype = XmlNodeType_Comment;
1434 reader->resume[XmlReadResume_Body] = start;
1435 reader->resumestate = XmlReadResumeState_Comment;
1436 reader_set_strvalue(reader, StringValue_Value, NULL);
1437 }
1438
1439 /* will exit when there's no more data, it won't attempt to
1440 read more from stream */
1441 while (*ptr)
1442 {
1443 if (ptr[0] == '-')
1444 {
1445 if (ptr[1] == '-')
1446 {
1447 if (ptr[2] == '>')
1448 {
1449 strval value;
1450
1451 reader_init_strvalue(start, reader_get_cur(reader)-start, &value);
1452 TRACE("%s\n", debug_strval(reader, &value));
1453
1454 /* skip rest of markup '->' */
1455 reader_skipn(reader, 3);
1456
1457 reader_set_strvalue(reader, StringValue_Value, &value);
1458 reader->resume[XmlReadResume_Body] = 0;
1459 reader->resumestate = XmlReadResumeState_Initial;
1460 return S_OK;
1461 }
1462 else
1463 return WC_E_COMMENT;
1464 }
1465 }
1466
1467 reader_skipn(reader, 1);
1468 ptr++;
1469 }
1470
1471 return S_OK;
1472 }
1473
1474 /* [2] Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF] */
1475 static inline BOOL is_char(WCHAR ch)
1476 {
1477 return (ch == '\t') || (ch == '\r') || (ch == '\n') ||
1478 (ch >= 0x20 && ch <= 0xd7ff) ||
1479 (ch >= 0xd800 && ch <= 0xdbff) || /* high surrogate */
1480 (ch >= 0xdc00 && ch <= 0xdfff) || /* low surrogate */
1481 (ch >= 0xe000 && ch <= 0xfffd);
1482 }
1483
1484 /* [13] PubidChar ::= #x20 | #xD | #xA | [a-zA-Z0-9] | [-'()+,./:=?;!*#@$_%] */
1485 BOOL is_pubchar(WCHAR ch)
1486 {
1487 return (ch == ' ') ||
1488 (ch >= 'a' && ch <= 'z') ||
1489 (ch >= 'A' && ch <= 'Z') ||
1490 (ch >= '0' && ch <= '9') ||
1491 (ch >= '-' && ch <= ';') || /* '()*+,-./:; */
1492 (ch == '=') || (ch == '?') ||
1493 (ch == '@') || (ch == '!') ||
1494 (ch >= '#' && ch <= '%') || /* #$% */
1495 (ch == '_') || (ch == '\r') || (ch == '\n');
1496 }
1497
1498 BOOL is_namestartchar(WCHAR ch)
1499 {
1500 return (ch == ':') || (ch >= 'A' && ch <= 'Z') ||
1501 (ch == '_') || (ch >= 'a' && ch <= 'z') ||
1502 (ch >= 0xc0 && ch <= 0xd6) ||
1503 (ch >= 0xd8 && ch <= 0xf6) ||
1504 (ch >= 0xf8 && ch <= 0x2ff) ||
1505 (ch >= 0x370 && ch <= 0x37d) ||
1506 (ch >= 0x37f && ch <= 0x1fff) ||
1507 (ch >= 0x200c && ch <= 0x200d) ||
1508 (ch >= 0x2070 && ch <= 0x218f) ||
1509 (ch >= 0x2c00 && ch <= 0x2fef) ||
1510 (ch >= 0x3001 && ch <= 0xd7ff) ||
1511 (ch >= 0xd800 && ch <= 0xdbff) || /* high surrogate */
1512 (ch >= 0xdc00 && ch <= 0xdfff) || /* low surrogate */
1513 (ch >= 0xf900 && ch <= 0xfdcf) ||
1514 (ch >= 0xfdf0 && ch <= 0xfffd);
1515 }
1516
1517 /* [4 NS] NCName ::= Name - (Char* ':' Char*) */
1518 BOOL is_ncnamechar(WCHAR ch)
1519 {
1520 return (ch >= 'A' && ch <= 'Z') ||
1521 (ch == '_') || (ch >= 'a' && ch <= 'z') ||
1522 (ch == '-') || (ch == '.') ||
1523 (ch >= '0' && ch <= '9') ||
1524 (ch == 0xb7) ||
1525 (ch >= 0xc0 && ch <= 0xd6) ||
1526 (ch >= 0xd8 && ch <= 0xf6) ||
1527 (ch >= 0xf8 && ch <= 0x2ff) ||
1528 (ch >= 0x300 && ch <= 0x36f) ||
1529 (ch >= 0x370 && ch <= 0x37d) ||
1530 (ch >= 0x37f && ch <= 0x1fff) ||
1531 (ch >= 0x200c && ch <= 0x200d) ||
1532 (ch >= 0x203f && ch <= 0x2040) ||
1533 (ch >= 0x2070 && ch <= 0x218f) ||
1534 (ch >= 0x2c00 && ch <= 0x2fef) ||
1535 (ch >= 0x3001 && ch <= 0xd7ff) ||
1536 (ch >= 0xd800 && ch <= 0xdbff) || /* high surrogate */
1537 (ch >= 0xdc00 && ch <= 0xdfff) || /* low surrogate */
1538 (ch >= 0xf900 && ch <= 0xfdcf) ||
1539 (ch >= 0xfdf0 && ch <= 0xfffd);
1540 }
1541
1542 BOOL is_namechar(WCHAR ch)
1543 {
1544 return (ch == ':') || is_ncnamechar(ch);
1545 }
1546
1547 static XmlNodeType reader_get_nodetype(const xmlreader *reader)
1548 {
1549 /* When we're on attribute always return attribute type, container node type is kept.
1550 Note that container is not necessarily an element, and attribute doesn't mean it's
1551 an attribute in XML spec terms. */
1552 return reader->attr ? XmlNodeType_Attribute : reader->nodetype;
1553 }
1554
1555 /* [4] NameStartChar ::= ":" | [A-Z] | "_" | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] |
1556 [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] |
1557 [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF]
1558 [4a] NameChar ::= NameStartChar | "-" | "." | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040]
1559 [5] Name ::= NameStartChar (NameChar)* */
1560 static HRESULT reader_parse_name(xmlreader *reader, strval *name)
1561 {
1562 WCHAR *ptr;
1563 UINT start;
1564
1565 if (reader->resume[XmlReadResume_Name])
1566 {
1567 start = reader->resume[XmlReadResume_Name];
1568 ptr = reader_get_ptr(reader);
1569 }
1570 else
1571 {
1572 ptr = reader_get_ptr(reader);
1573 start = reader_get_cur(reader);
1574 if (!is_namestartchar(*ptr)) return WC_E_NAMECHARACTER;
1575 }
1576
1577 while (is_namechar(*ptr))
1578 {
1579 reader_skipn(reader, 1);
1580 ptr = reader_get_ptr(reader);
1581 }
1582
1583 if (is_reader_pending(reader))
1584 {
1585 reader->resume[XmlReadResume_Name] = start;
1586 return E_PENDING;
1587 }
1588 else
1589 reader->resume[XmlReadResume_Name] = 0;
1590
1591 reader_init_strvalue(start, reader_get_cur(reader)-start, name);
1592 TRACE("name %s:%d\n", debug_strval(reader, name), name->len);
1593
1594 return S_OK;
1595 }
1596
1597 /* [17] PITarget ::= Name - (('X' | 'x') ('M' | 'm') ('L' | 'l')) */
1598 static HRESULT reader_parse_pitarget(xmlreader *reader, strval *target)
1599 {
1600 static const strval xmlval = { (WCHAR *)L"xml", 3 };
1601 strval name;
1602 WCHAR *ptr;
1603 HRESULT hr;
1604 UINT i;
1605
1606 hr = reader_parse_name(reader, &name);
1607 if (FAILED(hr)) return is_reader_pending(reader) ? E_PENDING : WC_E_PI;
1608
1609 /* now that we got name check for illegal content */
1610 if (strval_eq(reader, &name, &xmlval))
1611 return WC_E_LEADINGXML;
1612
1613 /* PITarget can't be a qualified name */
1614 ptr = reader_get_strptr(reader, &name);
1615 for (i = 0; i < name.len; i++)
1616 if (ptr[i] == ':')
1617 return i ? NC_E_NAMECOLON : WC_E_PI;
1618
1619 TRACE("pitarget %s:%d\n", debug_strval(reader, &name), name.len);
1620 *target = name;
1621 return S_OK;
1622 }
1623
1624 /* [16] PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char*)))? '?>' */
1625 static HRESULT reader_parse_pi(xmlreader *reader)
1626 {
1627 strval target;
1628 WCHAR *ptr;
1629 UINT start;
1630 HRESULT hr;
1631
1632 switch (reader->resumestate)
1633 {
1634 case XmlReadResumeState_Initial:
1635 /* skip '<?' */
1636 reader_skipn(reader, 2);
1637 reader_shrink(reader);
1638 reader->resumestate = XmlReadResumeState_PITarget;
1639 case XmlReadResumeState_PITarget:
1640 hr = reader_parse_pitarget(reader, &target);
1641 if (FAILED(hr)) return hr;
1642 reader_set_strvalue(reader, StringValue_LocalName, &target);
1643 reader_set_strvalue(reader, StringValue_QualifiedName, &target);
1644 reader_set_strvalue(reader, StringValue_Value, &strval_empty);
1645 reader->resumestate = XmlReadResumeState_PIBody;
1646 reader->resume[XmlReadResume_Body] = reader_get_cur(reader);
1647 default:
1648 ;
1649 }
1650
1651 start = reader->resume[XmlReadResume_Body];
1652 ptr = reader_get_ptr(reader);
1653 while (*ptr)
1654 {
1655 if (ptr[0] == '?')
1656 {
1657 if (ptr[1] == '>')
1658 {
1659 UINT cur = reader_get_cur(reader);
1660 strval value;
1661
1662 /* strip all leading whitespace chars */
1663 while (start < cur)
1664 {
1665 ptr = reader_get_ptr2(reader, start);
1666 if (!is_wchar_space(*ptr)) break;
1667 start++;
1668 }
1669
1670 reader_init_strvalue(start, cur-start, &value);
1671
1672 /* skip '?>' */
1673 reader_skipn(reader, 2);
1674 TRACE("%s\n", debug_strval(reader, &value));
1675 reader->nodetype = XmlNodeType_ProcessingInstruction;
1676 reader->resumestate = XmlReadResumeState_Initial;
1677 reader->resume[XmlReadResume_Body] = 0;
1678 reader_set_strvalue(reader, StringValue_Value, &value);
1679 return S_OK;
1680 }
1681 }
1682
1683 reader_skipn(reader, 1);
1684 ptr = reader_get_ptr(reader);
1685 }
1686
1687 return S_OK;
1688 }
1689
1690 /* This one is used to parse significant whitespace nodes, like in Misc production */
1691 static HRESULT reader_parse_whitespace(xmlreader *reader)
1692 {
1693 switch (reader->resumestate)
1694 {
1695 case XmlReadResumeState_Initial:
1696 reader_shrink(reader);
1697 reader->resumestate = XmlReadResumeState_Whitespace;
1698 reader->resume[XmlReadResume_Body] = reader_get_cur(reader);
1699 reader->nodetype = XmlNodeType_Whitespace;
1700 reader_set_strvalue(reader, StringValue_LocalName, &strval_empty);
1701 reader_set_strvalue(reader, StringValue_QualifiedName, &strval_empty);
1702 reader_set_strvalue(reader, StringValue_Value, &strval_empty);
1703 /* fallthrough */
1704 case XmlReadResumeState_Whitespace:
1705 {
1706 strval value;
1707 UINT start;
1708
1709 reader_skipspaces(reader);
1710 if (is_reader_pending(reader)) return S_OK;
1711
1712 start = reader->resume[XmlReadResume_Body];
1713 reader_init_strvalue(start, reader_get_cur(reader)-start, &value);
1714 reader_set_strvalue(reader, StringValue_Value, &value);
1715 TRACE("%s\n", debug_strval(reader, &value));
1716 reader->resumestate = XmlReadResumeState_Initial;
1717 }
1718 default:
1719 ;
1720 }
1721
1722 return S_OK;
1723 }
1724
1725 /* [27] Misc ::= Comment | PI | S */
1726 static HRESULT reader_parse_misc(xmlreader *reader)
1727 {
1728 HRESULT hr = S_FALSE;
1729
1730 if (reader->resumestate != XmlReadResumeState_Initial)
1731 {
1732 hr = reader_more(reader);
1733 if (FAILED(hr)) return hr;
1734
1735 /* finish current node */
1736 switch (reader->resumestate)
1737 {
1738 case XmlReadResumeState_PITarget:
1739 case XmlReadResumeState_PIBody:
1740 return reader_parse_pi(reader);
1741 case XmlReadResumeState_Comment:
1742 return reader_parse_comment(reader);
1743 case XmlReadResumeState_Whitespace:
1744 return reader_parse_whitespace(reader);
1745 default:
1746 ERR("unknown resume state %d\n", reader->resumestate);
1747 }
1748 }
1749
1750 while (1)
1751 {
1752 const WCHAR *cur = reader_get_ptr(reader);
1753
1754 if (is_wchar_space(*cur))
1755 hr = reader_parse_whitespace(reader);
1756 else if (!reader_cmp(reader, L"<!--"))
1757 hr = reader_parse_comment(reader);
1758 else if (!reader_cmp(reader, L"<?"))
1759 hr = reader_parse_pi(reader);
1760 else
1761 break;
1762
1763 if (hr != S_FALSE) return hr;
1764 }
1765
1766 return hr;
1767 }
1768
1769 /* [11] SystemLiteral ::= ('"' [^"]* '"') | ("'" [^']* "'") */
1770 static HRESULT reader_parse_sys_literal(xmlreader *reader, strval *literal)
1771 {
1772 WCHAR *cur = reader_get_ptr(reader), quote;
1773 UINT start;
1774
1775 if (*cur != '"' && *cur != '\'') return WC_E_QUOTE;
1776
1777 quote = *cur;
1778 reader_skipn(reader, 1);
1779
1780 cur = reader_get_ptr(reader);
1781 start = reader_get_cur(reader);
1782 while (is_char(*cur) && *cur != quote)
1783 {
1784 reader_skipn(reader, 1);
1785 cur = reader_get_ptr(reader);
1786 }
1787 reader_init_strvalue(start, reader_get_cur(reader)-start, literal);
1788 if (*cur == quote) reader_skipn(reader, 1);
1789
1790 TRACE("%s\n", debug_strval(reader, literal));
1791 return S_OK;
1792 }
1793
1794 /* [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'"
1795 [13] PubidChar ::= #x20 | #xD | #xA | [a-zA-Z0-9] | [-'()+,./:=?;!*#@$_%] */
1796 static HRESULT reader_parse_pub_literal(xmlreader *reader, strval *literal)
1797 {
1798 WCHAR *cur = reader_get_ptr(reader), quote;
1799 UINT start;
1800
1801 if (*cur != '"' && *cur != '\'') return WC_E_QUOTE;
1802
1803 quote = *cur;
1804 reader_skipn(reader, 1);
1805
1806 start = reader_get_cur(reader);
1807 cur = reader_get_ptr(reader);
1808 while (is_pubchar(*cur) && *cur != quote)
1809 {
1810 reader_skipn(reader, 1);
1811 cur = reader_get_ptr(reader);
1812 }
1813 reader_init_strvalue(start, reader_get_cur(reader)-start, literal);
1814 if (*cur == quote) reader_skipn(reader, 1);
1815
1816 TRACE("%s\n", debug_strval(reader, literal));
1817 return S_OK;
1818 }
1819
1820 /* [75] ExternalID ::= 'SYSTEM' S SystemLiteral | 'PUBLIC' S PubidLiteral S SystemLiteral */
1821 static HRESULT reader_parse_externalid(xmlreader *reader)
1822 {
1823 static WCHAR systemW[] = L"SYSTEM";
1824 static WCHAR publicW[] = L"PUBLIC";
1825 struct reader_position position = reader->position;
1826 strval name, sys;
1827 HRESULT hr;
1828 int cnt;
1829
1830 if (!reader_cmp(reader, publicW)) {
1831 strval pub;
1832
1833 /* public id */
1834 reader_skipn(reader, 6);
1835 cnt = reader_skipspaces(reader);
1836 if (!cnt) return WC_E_WHITESPACE;
1837
1838 hr = reader_parse_pub_literal(reader, &pub);
1839 if (FAILED(hr)) return hr;
1840
1841 reader_init_cstrvalue(publicW, lstrlenW(publicW), &name);
1842 hr = reader_add_attr(reader, NULL, &name, NULL, &pub, &position, 0);
1843 if (FAILED(hr)) return hr;
1844
1845 cnt = reader_skipspaces(reader);
1846 if (!cnt) return S_OK;
1847
1848 /* optional system id */
1849 hr = reader_parse_sys_literal(reader, &sys);
1850 if (FAILED(hr)) return S_OK;
1851
1852 reader_init_cstrvalue(systemW, lstrlenW(systemW), &name);
1853 hr = reader_add_attr(reader, NULL, &name, NULL, &sys, &position, 0);
1854 if (FAILED(hr)) return hr;
1855
1856 return S_OK;
1857 } else if (!reader_cmp(reader, systemW)) {
1858 /* system id */
1859 reader_skipn(reader, 6);
1860 cnt = reader_skipspaces(reader);
1861 if (!cnt) return WC_E_WHITESPACE;
1862
1863 hr = reader_parse_sys_literal(reader, &sys);
1864 if (FAILED(hr)) return hr;
1865
1866 reader_init_cstrvalue(systemW, lstrlenW(systemW), &name);
1867 return reader_add_attr(reader, NULL, &name, NULL, &sys, &position, 0);
1868 }
1869
1870 return S_FALSE;
1871 }
1872
1873 /* [28] doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S? ('[' intSubset ']' S?)? '>' */
1874 static HRESULT reader_parse_dtd(xmlreader *reader)
1875 {
1876 strval name;
1877 WCHAR *cur;
1878 HRESULT hr;
1879
1880 if (reader_cmp(reader, L"<!DOCTYPE")) return S_FALSE;
1881 reader_shrink(reader);
1882
1883 /* DTD processing is not allowed by default */
1884 if (reader->dtdmode == DtdProcessing_Prohibit) return WC_E_DTDPROHIBITED;
1885
1886 reader_skipn(reader, 9);
1887 if (!reader_skipspaces(reader)) return WC_E_WHITESPACE;
1888
1889 /* name */
1890 hr = reader_parse_name(reader, &name);
1891 if (FAILED(hr)) return WC_E_DECLDOCTYPE;
1892
1893 reader_skipspaces(reader);
1894
1895 hr = reader_parse_externalid(reader);
1896 if (FAILED(hr)) return hr;
1897
1898 reader_skipspaces(reader);
1899
1900 cur = reader_get_ptr(reader);
1901 if (*cur != '>')
1902 {
1903 FIXME("internal subset parsing not implemented\n");
1904 return E_NOTIMPL;
1905 }
1906
1907 /* skip '>' */
1908 reader_skipn(reader, 1);
1909
1910 reader->nodetype = XmlNodeType_DocumentType;
1911 reader_set_strvalue(reader, StringValue_LocalName, &name);
1912 reader_set_strvalue(reader, StringValue_QualifiedName, &name);
1913
1914 return S_OK;
1915 }
1916
1917 /* [11 NS] LocalPart ::= NCName */
1918 static HRESULT reader_parse_local(xmlreader *reader, strval *local, BOOL check_for_separator)
1919 {
1920 WCHAR *ptr;
1921 UINT start;
1922
1923 if (reader->resume[XmlReadResume_Local])
1924 {
1925 start = reader->resume[XmlReadResume_Local];
1926 ptr = reader_get_ptr(reader);
1927 }
1928 else
1929 {
1930 ptr = reader_get_ptr(reader);
1931 start = reader_get_cur(reader);
1932 }
1933
1934 while (is_ncnamechar(*ptr))
1935 {
1936 reader_skipn(reader, 1);
1937 ptr = reader_get_ptr(reader);
1938 }
1939
1940 if (check_for_separator && *ptr == ':')
1941 return NC_E_QNAMECOLON;
1942
1943 if (is_reader_pending(reader))
1944 {
1945 reader->resume[XmlReadResume_Local] = start;
1946 return E_PENDING;
1947 }
1948 else
1949 reader->resume[XmlReadResume_Local] = 0;
1950
1951 reader_init_strvalue(start, reader_get_cur(reader)-start, local);
1952
1953 return S_OK;
1954 }
1955
1956 /* [7 NS] QName ::= PrefixedName | UnprefixedName
1957 [8 NS] PrefixedName ::= Prefix ':' LocalPart
1958 [9 NS] UnprefixedName ::= LocalPart
1959 [10 NS] Prefix ::= NCName */
1960 static HRESULT reader_parse_qname(xmlreader *reader, strval *prefix, strval *local, strval *qname)
1961 {
1962 WCHAR *ptr;
1963 UINT start;
1964 HRESULT hr;
1965
1966 if (reader->resume[XmlReadResume_Name])
1967 {
1968 start = reader->resume[XmlReadResume_Name];
1969 ptr = reader_get_ptr(reader);
1970 }
1971 else
1972 {
1973 ptr = reader_get_ptr(reader);
1974 start = reader_get_cur(reader);
1975 reader->resume[XmlReadResume_Name] = start;
1976 if (!is_ncnamechar(*ptr)) return NC_E_QNAMECHARACTER;
1977 }
1978
1979 if (reader->resume[XmlReadResume_Local])
1980 {
1981 hr = reader_parse_local(reader, local, FALSE);
1982 if (FAILED(hr)) return hr;
1983
1984 reader_init_strvalue(reader->resume[XmlReadResume_Name],
1985 local->start - reader->resume[XmlReadResume_Name] - 1,
1986 prefix);
1987 }
1988 else
1989 {
1990 /* skip prefix part */
1991 while (is_ncnamechar(*ptr))
1992 {
1993 reader_skipn(reader, 1);
1994 ptr = reader_get_ptr(reader);
1995 }
1996
1997 if (is_reader_pending(reader)) return E_PENDING;
1998
1999 /* got a qualified name */
2000 if (*ptr == ':')
2001 {
2002 reader_init_strvalue(start, reader_get_cur(reader)-start, prefix);
2003
2004 /* skip ':' */
2005 reader_skipn(reader, 1);
2006 hr = reader_parse_local(reader, local, TRUE);
2007 if (FAILED(hr)) return hr;
2008 }
2009 else
2010 {
2011 reader_init_strvalue(reader->resume[XmlReadResume_Name], reader_get_cur(reader)-reader->resume[XmlReadResume_Name], local);
2012 reader_init_strvalue(0, 0, prefix);
2013 }
2014 }
2015
2016 if (prefix->len)
2017 TRACE("qname %s:%s\n", debug_strval(reader, prefix), debug_strval(reader, local));
2018 else
2019 TRACE("ncname %s\n", debug_strval(reader, local));
2020
2021 reader_init_strvalue(prefix->len ? prefix->start : local->start,
2022 /* count ':' too */
2023 (prefix->len ? prefix->len + 1 : 0) + local->len,
2024 qname);
2025
2026 reader->resume[XmlReadResume_Name] = 0;
2027 reader->resume[XmlReadResume_Local] = 0;
2028
2029 return S_OK;
2030 }
2031
2032 static WCHAR get_predefined_entity(const xmlreader *reader, const strval *name)
2033 {
2034 static const strval lt = { (WCHAR *)L"lt", 2 };
2035 static const strval gt = { (WCHAR *)L"gt", 2 };
2036 static const strval amp = { (WCHAR *)L"amp", 3 };
2037 static const strval apos = { (WCHAR *)L"apos", 4 };
2038 static const strval quot = { (WCHAR *)L"quot", 4 };
2039 WCHAR *str = reader_get_strptr(reader, name);
2040
2041 switch (*str)
2042 {
2043 case 'l':
2044 if (strval_eq(reader, name, &lt)) return '<';
2045 break;
2046 case 'g':
2047 if (strval_eq(reader, name, &gt)) return '>';
2048 break;
2049 case 'a':
2050 if (strval_eq(reader, name, &amp))
2051 return '&';
2052 else if (strval_eq(reader, name, &apos))
2053 return '\'';
2054 break;
2055 case 'q':
2056 if (strval_eq(reader, name, &quot)) return '\"';
2057 break;
2058 default:
2059 ;
2060 }
2061
2062 return 0;
2063 }
2064
2065 /* [66] CharRef ::= '&#' [0-9]+ ';' | '&#x' [0-9a-fA-F]+ ';'
2066 [67] Reference ::= EntityRef | CharRef
2067 [68] EntityRef ::= '&' Name ';' */
2068 static HRESULT reader_parse_reference(xmlreader *reader)
2069 {
2070 encoded_buffer *buffer = &reader->input->buffer->utf16;
2071 WCHAR *start = reader_get_ptr(reader), *ptr;
2072 UINT cur = reader_get_cur(reader);
2073 WCHAR ch = 0;
2074 int len;
2075
2076 /* skip '&' */
2077 reader_skipn(reader, 1);
2078 ptr = reader_get_ptr(reader);
2079
2080 if (*ptr == '#')
2081 {
2082 reader_skipn(reader, 1);
2083 ptr = reader_get_ptr(reader);
2084
2085 /* hex char or decimal */
2086 if (*ptr == 'x')
2087 {
2088 reader_skipn(reader, 1);
2089 ptr = reader_get_ptr(reader);
2090
2091 while (*ptr != ';')
2092 {
2093 if ((*ptr >= '0' && *ptr <= '9'))
2094 ch = ch*16 + *ptr - '0';
2095 else if ((*ptr >= 'a' && *ptr <= 'f'))
2096 ch = ch*16 + *ptr - 'a' + 10;
2097 else if ((*ptr >= 'A' && *ptr <= 'F'))
2098 ch = ch*16 + *ptr - 'A' + 10;
2099 else
2100 return ch ? WC_E_SEMICOLON : WC_E_HEXDIGIT;
2101 reader_skipn(reader, 1);
2102 ptr = reader_get_ptr(reader);
2103 }
2104 }
2105 else
2106 {
2107 while (*ptr != ';')
2108 {
2109 if ((*ptr >= '0' && *ptr <= '9'))
2110 {
2111 ch = ch*10 + *ptr - '0';
2112 reader_skipn(reader, 1);
2113 ptr = reader_get_ptr(reader);
2114 }
2115 else
2116 return ch ? WC_E_SEMICOLON : WC_E_DIGIT;
2117 }
2118 }
2119
2120 if (!is_char(ch)) return WC_E_XMLCHARACTER;
2121
2122 /* normalize */
2123 if (is_wchar_space(ch)) ch = ' ';
2124
2125 ptr = reader_get_ptr(reader);
2126 start = reader_get_ptr2(reader, cur);
2127 len = buffer->written - ((char *)ptr - buffer->data);
2128 memmove(start + 1, ptr + 1, len);
2129
2130 buffer->written -= (reader_get_cur(reader) - cur) * sizeof(WCHAR);
2131 buffer->cur = cur + 1;
2132
2133 *start = ch;
2134 }
2135 else
2136 {
2137 strval name;
2138 HRESULT hr;
2139
2140 hr = reader_parse_name(reader, &name);
2141 if (FAILED(hr)) return hr;
2142
2143 ptr = reader_get_ptr(reader);
2144 if (*ptr != ';') return WC_E_SEMICOLON;
2145
2146 /* predefined entities resolve to a single character */
2147 ch = get_predefined_entity(reader, &name);
2148 if (ch)
2149 {
2150 len = buffer->written - ((char*)ptr - buffer->data) - sizeof(WCHAR);
2151 memmove(start+1, ptr+1, len);
2152 buffer->cur = cur + 1;
2153 buffer->written -= (ptr - start) * sizeof(WCHAR);
2154
2155 *start = ch;
2156 }
2157 else
2158 {
2159 FIXME("undeclared entity %s\n", debug_strval(reader, &name));
2160 return WC_E_UNDECLAREDENTITY;
2161 }
2162
2163 }
2164
2165 return S_OK;
2166 }
2167
2168 /* [10 NS] AttValue ::= '"' ([^<&"] | Reference)* '"' | "'" ([^<&'] | Reference)* "'" */
2169 static HRESULT reader_parse_attvalue(xmlreader *reader, strval *value)
2170 {
2171 WCHAR *ptr, quote;
2172 UINT start;
2173
2174 ptr = reader_get_ptr(reader);
2175
2176 /* skip opening quote */
2177 quote = *ptr;
2178 if (quote != '\"' && quote != '\'') return WC_E_QUOTE;
2179 reader_skipn(reader, 1);
2180
2181 ptr = reader_get_ptr(reader);
2182 start = reader_get_cur(reader);
2183 while (*ptr)
2184 {
2185 if (*ptr == '<') return WC_E_LESSTHAN;
2186
2187 if (*ptr == quote)
2188 {
2189 reader_init_strvalue(start, reader_get_cur(reader)-start, value);
2190 /* skip closing quote */
2191 reader_skipn(reader, 1);
2192 return S_OK;
2193 }
2194
2195 if (*ptr == '&')
2196 {
2197 HRESULT hr = reader_parse_reference(reader);
2198 if (FAILED(hr)) return hr;
2199 }
2200 else
2201 {
2202 /* replace all whitespace chars with ' ' */
2203 if (is_wchar_space(*ptr)) *ptr = ' ';
2204 reader_skipn(reader, 1);
2205 }
2206 ptr = reader_get_ptr(reader);
2207 }
2208
2209 return WC_E_QUOTE;
2210 }
2211
2212 /* [1 NS] NSAttName ::= PrefixedAttName | DefaultAttName
2213 [2 NS] PrefixedAttName ::= 'xmlns:' NCName
2214 [3 NS] DefaultAttName ::= 'xmlns'
2215 [15 NS] Attribute ::= NSAttName Eq AttValue | QName Eq AttValue */
2216 static HRESULT reader_parse_attribute(xmlreader *reader)
2217 {
2218 struct reader_position position = reader->position;
2219 strval prefix, local, qname, value;
2220 enum attribute_flags flags = 0;
2221 HRESULT hr;
2222
2223 hr = reader_parse_qname(reader, &prefix, &local, &qname);
2224 if (FAILED(hr)) return hr;
2225
2226 if (strval_eq(reader, &prefix, &strval_xmlns))
2227 flags |= ATTRIBUTE_NS_DEFINITION;
2228
2229 if (strval_eq(reader, &qname, &strval_xmlns))
2230 flags |= ATTRIBUTE_DEFAULT_NS_DEFINITION;
2231
2232 hr = reader_parse_eq(reader);
2233 if (FAILED(hr)) return hr;
2234
2235 hr = reader_parse_attvalue(reader, &value);
2236 if (FAILED(hr)) return hr;
2237
2238 if (flags & (ATTRIBUTE_NS_DEFINITION | ATTRIBUTE_DEFAULT_NS_DEFINITION))
2239 reader_push_ns(reader, &local, &value, !!(flags & ATTRIBUTE_DEFAULT_NS_DEFINITION));
2240
2241 TRACE("%s=%s\n", debug_strval(reader, &local), debug_strval(reader, &value));
2242 return reader_add_attr(reader, &prefix, &local, &qname, &value, &position, flags);
2243 }
2244
2245 /* [12 NS] STag ::= '<' QName (S Attribute)* S? '>'
2246 [14 NS] EmptyElemTag ::= '<' QName (S Attribute)* S? '/>' */
2247 static HRESULT reader_parse_stag(xmlreader *reader, strval *prefix, strval *local, strval *qname)
2248 {
2249 struct reader_position position = reader->position;
2250 HRESULT hr;
2251
2252 hr = reader_parse_qname(reader, prefix, local, qname);
2253 if (FAILED(hr)) return hr;
2254
2255 for (;;)
2256 {
2257 reader_skipspaces(reader);
2258
2259 /* empty element */
2260 if ((reader->is_empty_element = !reader_cmp(reader, L"/>")))
2261 {
2262 struct element *element = &reader->empty_element;
2263
2264 /* skip '/>' */
2265 reader_skipn(reader, 2);
2266
2267 reader_free_strvalued(reader, &element->qname);
2268 reader_free_strvalued(reader, &element->localname);
2269
2270 element->prefix = *prefix;
2271 reader_strvaldup(reader, qname, &element->qname);
2272 reader_strvaldup(reader, local, &element->localname);
2273 element->position = position;
2274 reader_mark_ns_nodes(reader, element);
2275 return S_OK;
2276 }
2277
2278 /* got a start tag */
2279 if (!reader_cmp(reader, L">"))
2280 {
2281 /* skip '>' */
2282 reader_skipn(reader, 1);
2283 return reader_push_element(reader, prefix, local, qname, &position);
2284 }
2285
2286 hr = reader_parse_attribute(reader);
2287 if (FAILED(hr)) return hr;
2288 }
2289
2290 return S_OK;
2291 }
2292
2293 /* [39] element ::= EmptyElemTag | STag content ETag */
2294 static HRESULT reader_parse_element(xmlreader *reader)
2295 {
2296 HRESULT hr;
2297
2298 switch (reader->resumestate)
2299 {
2300 case XmlReadResumeState_Initial:
2301 /* check if we are really on element */
2302 if (reader_cmp(reader, L"<")) return S_FALSE;
2303
2304 /* skip '<' */
2305 reader_skipn(reader, 1);
2306
2307 reader_shrink(reader);
2308 reader->resumestate = XmlReadResumeState_STag;
2309 case XmlReadResumeState_STag:
2310 {
2311 strval qname, prefix, local;
2312
2313 /* this handles empty elements too */
2314 hr = reader_parse_stag(reader, &prefix, &local, &qname);
2315 if (FAILED(hr)) return hr;
2316
2317 /* FIXME: need to check for defined namespace to reject invalid prefix */
2318
2319 /* if we got empty element and stack is empty go straight to Misc */
2320 if (reader->is_empty_element && list_empty(&reader->elements))
2321 reader->instate = XmlReadInState_MiscEnd;
2322 else
2323 reader->instate = XmlReadInState_Content;
2324
2325 reader->nodetype = XmlNodeType_Element;
2326 reader->resumestate = XmlReadResumeState_Initial;
2327 reader_set_strvalue(reader, StringValue_Prefix, &prefix);
2328 reader_set_strvalue(reader, StringValue_QualifiedName, &qname);
2329 reader_set_strvalue(reader, StringValue_Value, &strval_empty);
2330 break;
2331 }
2332 default:
2333 hr = E_FAIL;
2334 }
2335
2336 return hr;
2337 }
2338
2339 /* [13 NS] ETag ::= '</' QName S? '>' */
2340 static HRESULT reader_parse_endtag(xmlreader *reader)
2341 {
2342 struct reader_position position;
2343 strval prefix, local, qname;
2344 struct element *element;
2345 HRESULT hr;
2346
2347 /* skip '</' */
2348 reader_skipn(reader, 2);
2349
2350 position = reader->position;
2351 hr = reader_parse_qname(reader, &prefix, &local, &qname);
2352 if (FAILED(hr)) return hr;
2353
2354 reader_skipspaces(reader);
2355
2356 if (reader_cmp(reader, L">")) return WC_E_GREATERTHAN;
2357
2358 /* skip '>' */
2359 reader_skipn(reader, 1);
2360
2361 /* Element stack should never be empty at this point, cause we shouldn't get to
2362 content parsing if it's empty. */
2363 element = LIST_ENTRY(list_head(&reader->elements), struct element, entry);
2364 if (!strval_eq(reader, &element->qname, &qname)) return WC_E_ELEMENTMATCH;
2365
2366 /* update position stored for start tag, we won't be using it */
2367 element->position = position;
2368
2369 reader->nodetype = XmlNodeType_EndElement;
2370 reader->is_empty_element = FALSE;
2371 reader_set_strvalue(reader, StringValue_Prefix, &prefix);
2372
2373 return S_OK;
2374 }
2375
2376 /* [18] CDSect ::= CDStart CData CDEnd
2377 [19] CDStart ::= '<![CDATA['
2378 [20] CData ::= (Char* - (Char* ']]>' Char*))
2379 [21] CDEnd ::= ']]>' */
2380 static HRESULT reader_parse_cdata(xmlreader *reader)
2381 {
2382 WCHAR *ptr;
2383 UINT start;
2384
2385 if (reader->resumestate == XmlReadResumeState_CDATA)
2386 {
2387 start = reader->resume[XmlReadResume_Body];
2388 ptr = reader_get_ptr(reader);
2389 }
2390 else
2391 {
2392 /* skip markup '<![CDATA[' */
2393 reader_skipn(reader, 9);
2394 reader_shrink(reader);
2395 ptr = reader_get_ptr(reader);
2396 start = reader_get_cur(reader);
2397 reader->nodetype = XmlNodeType_CDATA;
2398 reader->resume[XmlReadResume_Body] = start;
2399 reader->resumestate = XmlReadResumeState_CDATA;
2400 reader_set_strvalue(reader, StringValue_Value, NULL);
2401 }
2402
2403 while (*ptr)
2404 {
2405 if (*ptr == ']' && *(ptr+1) == ']' && *(ptr+2) == '>')
2406 {
2407 strval value;
2408
2409 reader_init_strvalue(start, reader_get_cur(reader)-start, &value);
2410
2411 /* skip ']]>' */
2412 reader_skipn(reader, 3);
2413 TRACE("%s\n", debug_strval(reader, &value));
2414
2415 reader_set_strvalue(reader, StringValue_Value, &value);
2416 reader->resume[XmlReadResume_Body] = 0;
2417 reader->resumestate = XmlReadResumeState_Initial;
2418 return S_OK;
2419 }
2420 else
2421 {
2422 reader_skipn(reader, 1);
2423 ptr = reader_get_ptr(reader);
2424 }
2425 }
2426
2427 return S_OK;
2428 }
2429
2430 /* [14] CharData ::= [^<&]* - ([^<&]* ']]>' [^<&]*) */
2431 static HRESULT reader_parse_chardata(xmlreader *reader)
2432 {
2433 struct reader_position position;
2434 WCHAR *ptr;
2435 UINT start;
2436
2437 if (reader->resumestate == XmlReadResumeState_CharData)
2438 {
2439 start = reader->resume[XmlReadResume_Body];
2440 ptr = reader_get_ptr(reader);
2441 }
2442 else
2443 {
2444 reader_shrink(reader);
2445 ptr = reader_get_ptr(reader);
2446 start = reader_get_cur(reader);
2447 /* There's no text */
2448 if (!*ptr || *ptr == '<') return S_OK;
2449 reader->nodetype = is_wchar_space(*ptr) ? XmlNodeType_Whitespace : XmlNodeType_Text;
2450 reader->resume[XmlReadResume_Body] = start;
2451 reader->resumestate = XmlReadResumeState_CharData;
2452 reader_set_strvalue(reader, StringValue_Value, NULL);
2453 }
2454
2455 position = reader->position;
2456 while (*ptr)
2457 {
2458 /* CDATA closing sequence ']]>' is not allowed */
2459 if (ptr[0] == ']' && ptr[1] == ']' && ptr[2] == '>')
2460 return WC_E_CDSECTEND;
2461
2462 /* Found next markup part */
2463 if (ptr[0] == '<')
2464 {
2465 strval value;
2466
2467 reader->empty_element.position = position;
2468 reader_init_strvalue(start, reader_get_cur(reader)-start, &value);
2469 reader_set_strvalue(reader, StringValue_Value, &value);
2470 reader->resume[XmlReadResume_Body] = 0;
2471 reader->resumestate = XmlReadResumeState_Initial;
2472 return S_OK;
2473 }
2474
2475 /* this covers a case when text has leading whitespace chars */
2476 if (!is_wchar_space(*ptr)) reader->nodetype = XmlNodeType_Text;
2477
2478 if (!reader_cmp(reader, L"&"))
2479 reader_parse_reference(reader);
2480 else
2481 reader_skipn(reader, 1);
2482
2483 ptr = reader_get_ptr(reader);
2484 }
2485
2486 return S_OK;
2487 }
2488
2489 /* [43] content ::= CharData? ((element | Reference | CDSect | PI | Comment) CharData?)* */
2490 static HRESULT reader_parse_content(xmlreader *reader)
2491 {
2492 if (reader->resumestate != XmlReadResumeState_Initial)
2493 {
2494 switch (reader->resumestate)
2495 {
2496 case XmlReadResumeState_CDATA:
2497 return reader_parse_cdata(reader);
2498 case XmlReadResumeState_Comment:
2499 return reader_parse_comment(reader);
2500 case XmlReadResumeState_PIBody:
2501 case XmlReadResumeState_PITarget:
2502 return reader_parse_pi(reader);
2503 case XmlReadResumeState_CharData:
2504 return reader_parse_chardata(reader);
2505 default:
2506 ERR("unknown resume state %d\n", reader->resumestate);
2507 }
2508 }
2509
2510 reader_shrink(reader);
2511
2512 /* handle end tag here, it indicates end of content as well */
2513 if (!reader_cmp(reader, L"</"))
2514 return reader_parse_endtag(reader);
2515
2516 if (!reader_cmp(reader, L"<!--"))
2517 return reader_parse_comment(reader);
2518
2519 if (!reader_cmp(reader, L"<?"))
2520 return reader_parse_pi(reader);
2521
2522 if (!reader_cmp(reader, L"<![CDATA["))
2523 return reader_parse_cdata(reader);
2524
2525 if (!reader_cmp(reader, L"<"))
2526 return reader_parse_element(reader);
2527
2528 /* what's left must be CharData */
2529 return reader_parse_chardata(reader);
2530 }
2531
2532 static HRESULT reader_parse_nextnode(xmlreader *reader)
2533 {
2534 XmlNodeType nodetype = reader_get_nodetype(reader);
2535 HRESULT hr;
2536
2537 if (!is_reader_pending(reader))
2538 {
2539 reader->chunk_read_off = 0;
2540 reader_clear_attrs(reader);
2541 }
2542
2543 /* When moving from EndElement or empty element, pop its own namespace definitions */
2544 switch (nodetype)
2545 {
2546 case XmlNodeType_Attribute:
2547 reader_dec_depth(reader);
2548 /* fallthrough */
2549 case XmlNodeType_Element:
2550 if (reader->is_empty_element)
2551 reader_pop_ns_nodes(reader, &reader->empty_element);
2552 else if (FAILED(hr = reader_inc_depth(reader)))
2553 return hr;
2554 break;
2555 case XmlNodeType_EndElement:
2556 reader_pop_element(reader);
2557 reader_dec_depth(reader);
2558 break;
2559 default:
2560 ;
2561 }
2562
2563 for (;;)
2564 {
2565 switch (reader->instate)
2566 {
2567 /* if it's a first call for a new input we need to detect stream encoding */
2568 case XmlReadInState_Initial:
2569 {
2570 xml_encoding enc;
2571
2572 hr = readerinput_growraw(reader->input);
2573 if (FAILED(hr)) return hr;
2574
2575 reader->position.line_number = 1;
2576 reader->position.line_position = 1;
2577
2578 /* try to detect encoding by BOM or data and set input code page */
2579 hr = readerinput_detectencoding(reader->input, &enc);
2580 TRACE("detected encoding %s, 0x%08x\n", enc == XmlEncoding_Unknown ? "(unknown)" :
2581 debugstr_w(xml_encoding_map[enc].name), hr);
2582 if (FAILED(hr)) return hr;
2583
2584 /* always switch first time cause we have to put something in */
2585 readerinput_switchencoding(reader->input, enc);
2586
2587 /* parse xml declaration */
2588 hr = reader_parse_xmldecl(reader);
2589 if (FAILED(hr)) return hr;
2590
2591 readerinput_shrinkraw(reader->input, -1);
2592 reader->instate = XmlReadInState_Misc_DTD;
2593 if (hr == S_OK) return hr;
2594 }
2595 break;
2596 case XmlReadInState_Misc_DTD:
2597 hr = reader_parse_misc(reader);
2598 if (FAILED(hr)) return hr;
2599
2600 if (hr == S_FALSE)
2601 reader->instate = XmlReadInState_DTD;
2602 else
2603 return hr;
2604 break;
2605 case XmlReadInState_DTD:
2606 hr = reader_parse_dtd(reader);
2607 if (FAILED(hr)) return hr;
2608
2609 if (hr == S_OK)
2610 {
2611 reader->instate = XmlReadInState_DTD_Misc;
2612 return hr;
2613 }
2614 else
2615 reader->instate = XmlReadInState_Element;
2616 break;
2617 case XmlReadInState_DTD_Misc:
2618 hr = reader_parse_misc(reader);
2619 if (FAILED(hr)) return hr;
2620
2621 if (hr == S_FALSE)
2622 reader->instate = XmlReadInState_Element;
2623 else
2624 return hr;
2625 break;
2626 case XmlReadInState_Element:
2627 return reader_parse_element(reader);
2628 case XmlReadInState_Content:
2629 return reader_parse_content(reader);
2630 case XmlReadInState_MiscEnd:
2631 hr = reader_parse_misc(reader);
2632 if (hr != S_FALSE) return hr;
2633
2634 if (*reader_get_ptr(reader))
2635 {
2636 WARN("found garbage in the end of XML\n");
2637 return WC_E_SYNTAX;
2638 }
2639
2640 reader->instate = XmlReadInState_Eof;
2641 reader->state = XmlReadState_EndOfFile;
2642 reader->nodetype = XmlNodeType_None;
2643 return hr;
2644 case XmlReadInState_Eof:
2645 return S_FALSE;
2646 default:
2647 FIXME("internal state %d not handled\n", reader->instate);
2648 return E_NOTIMPL;
2649 }
2650 }
2651
2652 return E_NOTIMPL;
2653 }
2654
2655 static HRESULT WINAPI xmlreader_QueryInterface(IXmlReader *iface, REFIID riid, void** ppvObject)
2656 {
2657 xmlreader *This = impl_from_IXmlReader(iface);
2658
2659 TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObject);
2660
2661 if (IsEqualGUID(riid, &IID_IUnknown) ||
2662 IsEqualGUID(riid, &IID_IXmlReader))
2663 {
2664 *ppvObject = iface;
2665 }
2666 else
2667 {
2668 FIXME("interface %s not implemented\n", debugstr_guid(riid));
2669 *ppvObject = NULL;
2670 return E_NOINTERFACE;
2671 }
2672
2673 IXmlReader_AddRef(iface);
2674
2675 return S_OK;
2676 }
2677
2678 static ULONG WINAPI xmlreader_AddRef(IXmlReader *iface)
2679 {
2680 xmlreader *This = impl_from_IXmlReader(iface);
2681 ULONG ref = InterlockedIncrement(&This->ref);
2682 TRACE("(%p)->(%d)\n", This, ref);
2683 return ref;
2684 }
2685
2686 static void reader_clear_ns(xmlreader *reader)
2687 {
2688 struct ns *ns, *ns2;
2689
2690 LIST_FOR_EACH_ENTRY_SAFE(ns, ns2, &reader->ns, struct ns, entry) {
2691 list_remove(&ns->entry);
2692 reader_free_strvalued(reader, &ns->prefix);
2693 reader_free_strvalued(reader, &ns->uri);
2694 reader_free(reader, ns);
2695 }
2696
2697 LIST_FOR_EACH_ENTRY_SAFE(ns, ns2, &reader->nsdef, struct ns, entry) {
2698 list_remove(&ns->entry);
2699 reader_free_strvalued(reader, &ns->uri);
2700 reader_free(reader, ns);
2701 }
2702 }
2703
2704 static void reader_reset_parser(xmlreader *reader)
2705 {
2706 reader->position.line_number = 0;
2707 reader->position.line_position = 0;
2708
2709 reader_clear_elements(reader);
2710 reader_clear_attrs(reader);
2711 reader_clear_ns(reader);
2712 reader_free_strvalues(reader);
2713
2714 reader->depth = 0;
2715 reader->nodetype = XmlNodeType_None;
2716 reader->resumestate = XmlReadResumeState_Initial;
2717 memset(reader->resume, 0, sizeof(reader->resume));
2718 reader->is_empty_element = FALSE;
2719 }
2720
2721 static ULONG WINAPI xmlreader_Release(IXmlReader *iface)
2722 {
2723 xmlreader *This = impl_from_IXmlReader(iface);
2724 LONG ref = InterlockedDecrement(&This->ref);
2725
2726 TRACE("(%p)->(%d)\n", This, ref);
2727
2728 if (ref == 0)
2729 {
2730 IMalloc *imalloc = This->imalloc;
2731 reader_reset_parser(This);
2732 if (This->input) IUnknown_Release(&This->input->IXmlReaderInput_iface);
2733 if (This->resolver) IXmlResolver_Release(This->resolver);
2734 if (This->mlang) IUnknown_Release(This->mlang);
2735 reader_free(This, This);
2736 if (imalloc) IMalloc_Release(imalloc);
2737 }
2738
2739 return ref;
2740 }
2741
2742 static HRESULT WINAPI xmlreader_SetInput(IXmlReader* iface, IUnknown *input)
2743 {
2744 xmlreader *This = impl_from_IXmlReader(iface);
2745 IXmlReaderInput *readerinput;
2746 HRESULT hr;
2747
2748 TRACE("(%p)->(%p)\n", This, input);
2749
2750 if (This->input)
2751 {
2752 readerinput_release_stream(This->input);
2753 IUnknown_Release(&This->input->IXmlReaderInput_iface);
2754 This->input = NULL;
2755 }
2756
2757 reader_reset_parser(This);
2758
2759 /* just reset current input */
2760 if (!input)
2761 {
2762 This->state = XmlReadState_Initial;
2763 return S_OK;
2764 }
2765
2766 /* now try IXmlReaderInput, ISequentialStream, IStream */
2767 hr = IUnknown_QueryInterface(input, &IID_IXmlReaderInput, (void**)&readerinput);
2768 if (hr == S_OK)
2769 {
2770 if (readerinput->lpVtbl == &xmlreaderinputvtbl)
2771 This->input = impl_from_IXmlReaderInput(readerinput);
2772 else
2773 {
2774 ERR("got external IXmlReaderInput implementation: %p, vtbl=%p\n",
2775 readerinput, readerinput->lpVtbl);
2776 IUnknown_Release(readerinput);
2777 return E_FAIL;
2778
2779 }
2780 }
2781
2782 if (hr != S_OK || !readerinput)
2783 {
2784 /* create IXmlReaderInput basing on supplied interface */
2785 hr = CreateXmlReaderInputWithEncodingName(input,
2786 This->imalloc, NULL, FALSE, NULL, &readerinput);
2787 if (hr != S_OK) return hr;
2788 This->input = impl_from_IXmlReaderInput(readerinput);
2789 }
2790
2791 /* set stream for supplied IXmlReaderInput */
2792 hr = readerinput_query_for_stream(This->input);
2793 if (hr == S_OK)
2794 {
2795 This->state = XmlReadState_Initial;
2796 This->instate = XmlReadInState_Initial;
2797 }
2798 return hr;
2799 }
2800
2801 static HRESULT WINAPI xmlreader_GetProperty(IXmlReader* iface, UINT property, LONG_PTR *value)
2802 {
2803 xmlreader *This = impl_from_IXmlReader(iface);
2804
2805 TRACE("(%p)->(%s %p)\n", This, debugstr_reader_prop(property), value);
2806
2807 if (!value) return E_INVALIDARG;
2808
2809 switch (property)
2810 {
2811 case XmlReaderProperty_MultiLanguage:
2812 *value = (LONG_PTR)This->mlang;
2813 if (This->mlang)
2814 IUnknown_AddRef(This->mlang);
2815 break;
2816 case XmlReaderProperty_XmlResolver:
2817 *value = (LONG_PTR)This->resolver;
2818 if (This->resolver)
2819 IXmlResolver_AddRef(This->resolver);
2820 break;
2821 case XmlReaderProperty_DtdProcessing:
2822 *value = This->dtdmode;
2823 break;
2824 case XmlReaderProperty_ReadState:
2825 *value = This->state;
2826 break;
2827 case XmlReaderProperty_MaxElementDepth:
2828 *value = This->max_depth;
2829 break;
2830 default:
2831 FIXME("Unimplemented property (%u)\n", property);
2832 return E_NOTIMPL;
2833 }
2834
2835 return S_OK;
2836 }
2837
2838 static HRESULT WINAPI xmlreader_SetProperty(IXmlReader* iface, UINT property, LONG_PTR value)
2839 {
2840 xmlreader *This = impl_from_IXmlReader(iface);
2841
2842 TRACE("(%p)->(%s 0x%lx)\n", This, debugstr_reader_prop(property), value);
2843
2844 switch (property)
2845 {
2846 case XmlReaderProperty_MultiLanguage:
2847 if (This->mlang)
2848 IUnknown_Release(This->mlang);
2849 This->mlang = (IUnknown*)value;
2850 if (This->mlang)
2851 IUnknown_AddRef(This->mlang);
2852 if (This->mlang)
2853 FIXME("Ignoring MultiLanguage %p\n", This->mlang);
2854 break;
2855 case XmlReaderProperty_XmlResolver:
2856 if (This->resolver)
2857 IXmlResolver_Release(This->resolver);
2858 This->resolver = (IXmlResolver*)value;
2859 if (This->resolver)
2860 IXmlResolver_AddRef(This->resolver);
2861 break;
2862 case XmlReaderProperty_DtdProcessing:
2863 if (value < 0 || value > _DtdProcessing_Last) return E_INVALIDARG;
2864 This->dtdmode = value;
2865 break;
2866 case XmlReaderProperty_MaxElementDepth:
2867 This->max_depth = value;
2868 break;
2869 default:
2870 FIXME("Unimplemented property (%u)\n", property);
2871 return E_NOTIMPL;
2872 }
2873
2874 return S_OK;
2875 }
2876
2877 static HRESULT WINAPI xmlreader_Read(IXmlReader* iface, XmlNodeType *nodetype)
2878 {
2879 xmlreader *This = impl_from_IXmlReader(iface);
2880 XmlNodeType oldtype = This->nodetype;
2881 XmlNodeType type;
2882 HRESULT hr;
2883
2884 TRACE("(%p)->(%p)\n", This, nodetype);
2885
2886 if (!nodetype)
2887 nodetype = &type;
2888
2889 switch (This->state)
2890 {
2891 case XmlReadState_Closed:
2892 hr = S_FALSE;
2893 break;
2894 case XmlReadState_Error:
2895 hr = This->error;
2896 break;
2897 default:
2898 hr = reader_parse_nextnode(This);
2899 if (SUCCEEDED(hr) && oldtype == XmlNodeType_None && This->nodetype != oldtype)
2900 This->state = XmlReadState_Interactive;
2901
2902 if (FAILED(hr))
2903 {
2904 This->state = XmlReadState_Error;
2905 This->nodetype = XmlNodeType_None;
2906 This->depth = 0;
2907 This->error = hr;
2908 }
2909 }
2910
2911 TRACE("node type %s\n", debugstr_nodetype(This->nodetype));
2912 *nodetype = This->nodetype;
2913
2914 return hr;
2915 }
2916
2917 static HRESULT WINAPI xmlreader_GetNodeType(IXmlReader* iface, XmlNodeType *node_type)
2918 {
2919 xmlreader *This = impl_from_IXmlReader(iface);
2920
2921 TRACE("(%p)->(%p)\n", This, node_type);
2922
2923 if (!node_type)
2924 return E_INVALIDARG;
2925
2926 *node_type = reader_get_nodetype(This);
2927 return This->state == XmlReadState_Closed ? S_FALSE : S_OK;
2928 }
2929
2930 static void reader_set_current_attribute(xmlreader *reader, struct attribute *attr)
2931 {
2932 reader->attr = attr;
2933 reader->chunk_read_off = 0;
2934 reader_set_strvalue(reader, StringValue_Prefix, &attr->prefix);
2935 reader_set_strvalue(reader, StringValue_QualifiedName, &attr->qname);
2936 reader_set_strvalue(reader, StringValue_Value, &attr->value);
2937 }
2938
2939 static HRESULT reader_move_to_first_attribute(xmlreader *reader)
2940 {
2941 if (!reader->attr_count)
2942 return S_FALSE;
2943
2944 if (!reader->attr)
2945 reader_inc_depth(reader);
2946
2947 reader_set_current_attribute(reader, LIST_ENTRY(list_head(&reader->attrs), struct attribute, entry));
2948
2949 return S_OK;
2950 }
2951
2952 static HRESULT WINAPI xmlreader_MoveToFirstAttribute(IXmlReader* iface)
2953 {
2954 xmlreader *This = impl_from_IXmlReader(iface);
2955
2956 TRACE("(%p)\n", This);
2957
2958 return reader_move_to_first_attribute(This);
2959 }
2960
2961 static HRESULT WINAPI xmlreader_MoveToNextAttribute(IXmlReader* iface)
2962 {
2963 xmlreader *This = impl_from_IXmlReader(iface);
2964 const struct list *next;
2965
2966 TRACE("(%p)\n", This);
2967
2968 if (!This->attr_count) return S_FALSE;
2969
2970 if (!This->attr)
2971 return reader_move_to_first_attribute(This);
2972
2973 next = list_next(&This->attrs, &This->attr->entry);
2974 if (next)
2975 reader_set_current_attribute(This, LIST_ENTRY(next, struct attribute, entry));
2976
2977 return next ? S_OK : S_FALSE;
2978 }
2979
2980 static void reader_get_attribute_ns_uri(xmlreader *reader, struct attribute *attr, const WCHAR **uri, UINT *len)
2981 {
2982 static const WCHAR xmlns_uriW[] = L"http://www.w3.org/2000/xmlns/";
2983 static const WCHAR xml_uriW[] = L"http://www.w3.org/XML/1998/namespace";
2984
2985 /* Check for reserved prefixes first */
2986 if ((strval_eq(reader, &attr->prefix, &strval_empty) && strval_eq(reader, &attr->localname, &strval_xmlns)) ||
2987 strval_eq(reader, &attr->prefix, &strval_xmlns))
2988 {
2989 *uri = xmlns_uriW;
2990 *len = ARRAY_SIZE(xmlns_uriW) - 1;
2991 }
2992 else if (strval_eq(reader, &attr->prefix, &strval_xml))
2993 {
2994 *uri = xml_uriW;
2995 *len = ARRAY_SIZE(xml_uriW) - 1;
2996 }
2997 else
2998 {
2999 *uri = NULL;
3000 *len = 0;
3001 }
3002
3003 if (!*uri)
3004 {
3005 struct ns *ns;
3006
3007 if ((ns = reader_lookup_ns(reader, &attr->prefix)))
3008 {
3009 *uri = ns->uri.str;
3010 *len = ns->uri.len;
3011 }
3012 else
3013 {
3014 *uri = emptyW;
3015 *len = 0;
3016 }
3017 }
3018 }
3019
3020 static void reader_get_attribute_local_name(xmlreader *reader, struct attribute *attr, const WCHAR **name, UINT *len)
3021 {
3022 if (attr->flags & ATTRIBUTE_DEFAULT_NS_DEFINITION)
3023 {
3024 *name = xmlnsW;
3025 *len = 5;
3026 }
3027 else if (attr->flags & ATTRIBUTE_NS_DEFINITION)
3028 {
3029 const struct ns *ns = reader_lookup_ns(reader, &attr->localname);
3030 *name = ns->prefix.str;
3031 *len = ns->prefix.len;
3032 }
3033 else
3034 {
3035 *name = attr->localname.str;
3036 *len = attr->localname.len;
3037 }
3038 }
3039
3040 static HRESULT WINAPI xmlreader_MoveToAttributeByName(IXmlReader* iface,
3041 const WCHAR *local_name, const WCHAR *namespace_uri)
3042 {
3043 xmlreader *This = impl_from_IXmlReader(iface);
3044 UINT target_name_len, target_uri_len;
3045 struct attribute *attr;
3046
3047 TRACE("(%p)->(%s %s)\n", This, debugstr_w(local_name), debugstr_w(namespace_uri));
3048
3049 if (!local_name)
3050 return E_INVALIDARG;
3051
3052 if (!This->attr_count)
3053 return S_FALSE;
3054
3055 if (!namespace_uri)
3056 namespace_uri = emptyW;
3057
3058 target_name_len = lstrlenW(local_name);
3059 target_uri_len = lstrlenW(namespace_uri);
3060
3061 LIST_FOR_EACH_ENTRY(attr, &This->attrs, struct attribute, entry)
3062 {
3063 UINT name_len, uri_len;
3064 const WCHAR *name, *uri;
3065
3066 reader_get_attribute_local_name(This, attr, &name, &name_len);
3067 reader_get_attribute_ns_uri(This, attr, &uri, &uri_len);
3068
3069 if (name_len == target_name_len && uri_len == target_uri_len &&
3070 !wcscmp(name, local_name) && !wcscmp(uri, namespace_uri))
3071 {
3072 reader_set_current_attribute(This, attr);
3073 return S_OK;
3074 }
3075 }
3076
3077 return S_FALSE;
3078 }
3079
3080 static HRESULT WINAPI xmlreader_MoveToElement(IXmlReader* iface)
3081 {
3082 xmlreader *This = impl_from_IXmlReader(iface);
3083
3084 TRACE("(%p)\n", This);
3085
3086 if (!This->attr_count) return S_FALSE;
3087
3088 if (This->attr)
3089 reader_dec_depth(This);
3090
3091 This->attr = NULL;
3092
3093 /* FIXME: support other node types with 'attributes' like DTD */
3094 if (This->is_empty_element) {
3095 reader_set_strvalue(This, StringValue_Prefix, &This->empty_element.prefix);
3096 reader_set_strvalue(This, StringValue_QualifiedName, &This->empty_element.qname);
3097 }
3098 else {
3099 struct element *element = LIST_ENTRY(list_head(&This->elements), struct element, entry);
3100 if (element) {
3101 reader_set_strvalue(This, StringValue_Prefix, &element->prefix);
3102 reader_set_strvalue(This, StringValue_QualifiedName, &element->qname);
3103 }
3104 }
3105 This->chunk_read_off = 0;
3106 reader_set_strvalue(This, StringValue_Value, &strval_empty);
3107
3108 return S_OK;
3109 }
3110
3111 static HRESULT WINAPI xmlreader_GetQualifiedName(IXmlReader* iface, LPCWSTR *name, UINT *len)
3112 {
3113 xmlreader *This = impl_from_IXmlReader(iface);
3114 struct attribute *attribute = This->attr;
3115 struct element *element;
3116 UINT length;
3117
3118 TRACE("(%p)->(%p %p)\n", This, name, len);
3119
3120 if (!len)
3121 len = &length;
3122
3123 switch (reader_get_nodetype(This))
3124 {
3125 case XmlNodeType_Text:
3126 case XmlNodeType_CDATA:
3127 case XmlNodeType_Comment:
3128 case XmlNodeType_Whitespace:
3129 *name = emptyW;
3130 *len = 0;
3131 break;
3132 case XmlNodeType_Element:
3133 case XmlNodeType_EndElement:
3134 element = reader_get_element(This);
3135 if (element->prefix.len)
3136 {
3137 *name = element->qname.str;
3138 *len = element->qname.len;
3139 }
3140 else
3141 {
3142 *name = element->localname.str;
3143 *len = element->localname.len;
3144 }
3145 break;
3146 case XmlNodeType_Attribute:
3147 if (attribute->flags & ATTRIBUTE_DEFAULT_NS_DEFINITION)
3148 {
3149 *name = xmlnsW;
3150 *len = 5;
3151 } else if (attribute->prefix.len)
3152 {
3153 *name = This->strvalues[StringValue_QualifiedName].str;
3154 *len = This->strvalues[StringValue_QualifiedName].len;
3155 }
3156 else
3157 {
3158 *name = attribute->localname.str;
3159 *len = attribute->localname.len;
3160 }
3161 break;
3162 default:
3163 *name = This->strvalues[StringValue_QualifiedName].str;
3164 *len = This->strvalues[StringValue_QualifiedName].len;
3165 break;
3166 }
3167
3168 return S_OK;
3169 }
3170
3171 static struct ns *reader_lookup_nsdef(xmlreader *reader)
3172 {
3173 if (list_empty(&reader->nsdef))
3174 return NULL;
3175
3176 return LIST_ENTRY(list_head(&reader->nsdef), struct ns, entry);
3177 }
3178
3179 static HRESULT WINAPI xmlreader_GetNamespaceUri(IXmlReader* iface, const WCHAR **uri, UINT *len)
3180 {
3181 xmlreader *This = impl_from_IXmlReader(iface);
3182 const strval *prefix = &This->strvalues[StringValue_Prefix];
3183 XmlNodeType nodetype;
3184 struct ns *ns;
3185 UINT length;
3186
3187 TRACE("(%p %p %p)\n", iface, uri, len);
3188
3189 if (!len)
3190 len = &length;
3191
3192 switch ((nodetype = reader_get_nodetype(This)))
3193 {
3194 case XmlNodeType_Attribute:
3195 reader_get_attribute_ns_uri(This, This->attr, uri, len);
3196 break;
3197 case XmlNodeType_Element:
3198 case XmlNodeType_EndElement:
3199 {
3200 ns = reader_lookup_ns(This, prefix);
3201
3202 /* pick top default ns if any */
3203 if (!ns)
3204 ns = reader_lookup_nsdef(This);
3205
3206 if (ns) {
3207 *uri = ns->uri.str;
3208 *len = ns->uri.len;
3209 }
3210 else {
3211 *uri = emptyW;
3212 *len = 0;
3213 }
3214 }
3215 break;
3216 case XmlNodeType_Text:
3217 case XmlNodeType_CDATA:
3218 case XmlNodeType_ProcessingInstruction:
3219 case XmlNodeType_Comment:
3220 case XmlNodeType_Whitespace:
3221 case XmlNodeType_XmlDeclaration:
3222 *uri = emptyW;
3223 *len = 0;
3224 break;
3225 default:
3226 FIXME("Unhandled node type %d\n", nodetype);
3227 *uri = NULL;
3228 *len = 0;
3229 return E_NOTIMPL;
3230 }
3231
3232 return S_OK;
3233 }
3234
3235 static HRESULT WINAPI xmlreader_GetLocalName(IXmlReader* iface, LPCWSTR *name, UINT *len)
3236 {
3237 xmlreader *This = impl_from_IXmlReader(iface);
3238 struct element *element;
3239 UINT length;
3240
3241 TRACE("(%p)->(%p %p)\n", This, name, len);
3242
3243 if (!len)
3244 len = &length;
3245
3246 switch (reader_get_nodetype(This))
3247 {
3248 case XmlNodeType_Text:
3249 case XmlNodeType_CDATA:
3250 case XmlNodeType_Comment:
3251 case XmlNodeType_Whitespace:
3252 *name = emptyW;
3253 *len = 0;
3254 break;
3255 case XmlNodeType_Element:
3256 case XmlNodeType_EndElement:
3257 element = reader_get_element(This);
3258 *name = element->localname.str;
3259 *len = element->localname.len;
3260 break;
3261 case XmlNodeType_Attribute:
3262 reader_get_attribute_local_name(This, This->attr, name, len);
3263 break;
3264 default:
3265 *name = This->strvalues[StringValue_LocalName].str;
3266 *len = This->strvalues[StringValue_LocalName].len;
3267 break;
3268 }
3269
3270 return S_OK;
3271 }
3272
3273 static HRESULT WINAPI xmlreader_GetPrefix(IXmlReader* iface, const WCHAR **ret, UINT *len)
3274 {
3275 xmlreader *This = impl_from_IXmlReader(iface);
3276 XmlNodeType nodetype;
3277 UINT length;
3278
3279 TRACE("(%p)->(%p %p)\n", This, ret, len);
3280
3281 if (!len)
3282 len = &length;
3283
3284 *ret = emptyW;
3285 *len = 0;
3286
3287 switch ((nodetype = reader_get_nodetype(This)))
3288 {
3289 case XmlNodeType_Element:
3290 case XmlNodeType_EndElement:
3291 case XmlNodeType_Attribute:
3292 {
3293 const strval *prefix = &This->strvalues[StringValue_Prefix];
3294 struct ns *ns;
3295
3296 if (strval_eq(This, prefix, &strval_xml))
3297 {
3298 *ret = xmlW;
3299 *len = 3;
3300 }
3301 else if (strval_eq(This, prefix, &strval_xmlns))
3302 {
3303 *ret = xmlnsW;
3304 *len = 5;
3305 }
3306 else if ((ns = reader_lookup_ns(This, prefix)))
3307 {
3308 *ret = ns->prefix.str;
3309 *len = ns->prefix.len;
3310 }
3311
3312 break;
3313 }
3314 default:
3315 ;
3316 }
3317
3318 return S_OK;
3319 }
3320
3321 static const strval *reader_get_value(xmlreader *reader, BOOL ensure_allocated)
3322 {
3323 strval *val;
3324
3325 switch (reader_get_nodetype(reader))
3326 {
3327 case XmlNodeType_XmlDeclaration:
3328 case XmlNodeType_EndElement:
3329 case XmlNodeType_None:
3330 return &strval_empty;
3331 case XmlNodeType_Attribute:
3332 /* For namespace definition attributes return values from namespace list */
3333 if (reader->attr->flags & (ATTRIBUTE_NS_DEFINITION | ATTRIBUTE_DEFAULT_NS_DEFINITION))
3334 {
3335 struct ns *ns;
3336
3337 if (!(ns = reader_lookup_ns(reader, &reader->attr->localname)))
3338 ns = reader_lookup_nsdef(reader);
3339
3340 return &ns->uri;
3341 }
3342 return &reader->attr->value;
3343 default:
3344 break;
3345 }
3346
3347 val = &reader->strvalues[StringValue_Value];
3348 if (!val->str && ensure_allocated)
3349 {
3350 WCHAR *ptr = reader_alloc(reader, (val->len+1)*sizeof(WCHAR));
3351 if (!ptr) return NULL;
3352 memcpy(ptr, reader_get_strptr(reader, val), val->len*sizeof(WCHAR));
3353 ptr[val->len] = 0;
3354 val->str = ptr;
3355 }
3356
3357 return val;
3358 }
3359
3360 static HRESULT WINAPI xmlreader_GetValue(IXmlReader* iface, const WCHAR **value, UINT *len)
3361 {
3362 xmlreader *reader = impl_from_IXmlReader(iface);
3363 const strval *val = &reader->strvalues[StringValue_Value];
3364 UINT off;
3365
3366 TRACE("(%p)->(%p %p)\n", reader, value, len);
3367
3368 *value = NULL;
3369
3370 if ((reader->nodetype == XmlNodeType_Comment && !val->str && !val->len) || is_reader_pending(reader))
3371 {
3372 XmlNodeType type;
3373 HRESULT hr;
3374
3375 hr = IXmlReader_Read(iface, &type);
3376 if (FAILED(hr)) return hr;
3377
3378 /* return if still pending, partially read values are not reported */
3379 if (is_reader_pending(reader)) return E_PENDING;
3380 }
3381
3382 val = reader_get_value(reader, TRUE);
3383 if (!val)
3384 return E_OUTOFMEMORY;
3385
3386 off = abs(reader->chunk_read_off);
3387 assert(off <= val->len);
3388 *value = val->str + off;
3389 if (len) *len = val->len - off;
3390 reader->chunk_read_off = -off;
3391 return S_OK;
3392 }
3393
3394 static HRESULT WINAPI xmlreader_ReadValueChunk(IXmlReader* iface, WCHAR *buffer, UINT chunk_size, UINT *read)
3395 {
3396 xmlreader *reader = impl_from_IXmlReader(iface);
3397 const strval *val;
3398 UINT len = 0;
3399
3400 TRACE("(%p)->(%p %u %p)\n", reader, buffer, chunk_size, read);
3401
3402 val = reader_get_value(reader, FALSE);
3403
3404 /* If value is already read by GetValue, chunk_read_off is negative and chunked reads are not possible. */
3405 if (reader->chunk_read_off >= 0)
3406 {
3407 assert(reader->chunk_read_off <= val->len);
3408 len = min(val->len - reader->chunk_read_off, chunk_size);
3409 }
3410 if (read) *read = len;
3411
3412 if (len)
3413 {
3414 memcpy(buffer, reader_get_strptr(reader, val) + reader->chunk_read_off, len*sizeof(WCHAR));
3415 reader->chunk_read_off += len;
3416 }
3417
3418 return len || !chunk_size ? S_OK : S_FALSE;
3419 }
3420
3421 static HRESULT WINAPI xmlreader_GetBaseUri(IXmlReader* iface,
3422 LPCWSTR *baseUri,
3423 UINT *baseUri_length)
3424 {
3425 FIXME("(%p %p %p): stub\n", iface, baseUri, baseUri_length);
3426 return E_NOTIMPL;
3427 }
3428
3429 static BOOL WINAPI xmlreader_IsDefault(IXmlReader* iface)
3430 {
3431 FIXME("(%p): stub\n", iface);
3432 return FALSE;
3433 }
3434
3435 static BOOL WINAPI xmlreader_IsEmptyElement(IXmlReader* iface)
3436 {
3437 xmlreader *This = impl_from_IXmlReader(iface);
3438 TRACE("(%p)\n", This);
3439 /* Empty elements are not placed in stack, it's stored as a global reader flag that makes sense
3440 when current node is start tag of an element */
3441 return (reader_get_nodetype(This) == XmlNodeType_Element) ? This->is_empty_element : FALSE;
3442 }
3443
3444 static HRESULT WINAPI xmlreader_GetLineNumber(IXmlReader* iface, UINT *line_number)
3445 {
3446 xmlreader *This = impl_from_IXmlReader(iface);
3447 const struct element *element;
3448
3449 TRACE("(%p %p)\n", This, line_number);
3450
3451 if (!line_number)
3452 return E_INVALIDARG;
3453
3454 switch (reader_get_nodetype(This))
3455 {
3456 case XmlNodeType_Element:
3457 case XmlNodeType_EndElement:
3458 element = reader_get_element(This);
3459 *line_number = element->position.line_number;
3460 break;
3461 case XmlNodeType_Attribute:
3462 *line_number = This->attr->position.line_number;
3463 break;
3464 case XmlNodeType_Whitespace:
3465 case XmlNodeType_XmlDeclaration:
3466 *line_number = This->empty_element.position.line_number;
3467 break;
3468 default:
3469 *line_number = This->position.line_number;
3470 break;
3471 }
3472
3473 return This->state == XmlReadState_Closed ? S_FALSE : S_OK;
3474 }
3475
3476 static HRESULT WINAPI xmlreader_GetLinePosition(IXmlReader* iface, UINT *line_position)
3477 {
3478 xmlreader *This = impl_from_IXmlReader(iface);
3479 const struct element *element;
3480
3481 TRACE("(%p %p)\n", This, line_position);
3482
3483 if (!line_position)
3484 return E_INVALIDARG;
3485
3486 switch (reader_get_nodetype(This))
3487 {
3488 case XmlNodeType_Element:
3489 case XmlNodeType_EndElement:
3490 element = reader_get_element(This);
3491 *line_position = element->position.line_position;
3492 break;
3493 case XmlNodeType_Attribute:
3494 *line_position = This->attr->position.line_position;
3495 break;
3496 case XmlNodeType_Whitespace:
3497 case XmlNodeType_XmlDeclaration:
3498 *line_position = This->empty_element.position.line_position;
3499 break;
3500 default:
3501 *line_position = This->position.line_position;
3502 break;
3503 }
3504
3505 return This->state == XmlReadState_Closed ? S_FALSE : S_OK;
3506 }
3507
3508 static HRESULT WINAPI xmlreader_GetAttributeCount(IXmlReader* iface, UINT *count)
3509 {
3510 xmlreader *This = impl_from_IXmlReader(iface);
3511
3512 TRACE("(%p)->(%p)\n", This, count);
3513
3514 if (!count) return E_INVALIDARG;
3515
3516 *count = This->attr_count;
3517 return S_OK;
3518 }
3519
3520 static HRESULT WINAPI xmlreader_GetDepth(IXmlReader* iface, UINT *depth)
3521 {
3522 xmlreader *This = impl_from_IXmlReader(iface);
3523 TRACE("(%p)->(%p)\n", This, depth);
3524 *depth = This->depth;
3525 return S_OK;
3526 }
3527
3528 static BOOL WINAPI xmlreader_IsEOF(IXmlReader* iface)
3529 {
3530 xmlreader *This = impl_from_IXmlReader(iface);
3531 TRACE("(%p)\n", iface);
3532 return This->state == XmlReadState_EndOfFile;
3533 }
3534
3535 static const struct IXmlReaderVtbl xmlreader_vtbl =
3536 {
3537 xmlreader_QueryInterface,
3538 xmlreader_AddRef,
3539 xmlreader_Release,
3540 xmlreader_SetInput,
3541 xmlreader_GetProperty,
3542 xmlreader_SetProperty,
3543 xmlreader_Read,
3544 xmlreader_GetNodeType,
3545 xmlreader_MoveToFirstAttribute,
3546 xmlreader_MoveToNextAttribute,
3547 xmlreader_MoveToAttributeByName,
3548 xmlreader_MoveToElement,
3549 xmlreader_GetQualifiedName,
3550 xmlreader_GetNamespaceUri,
3551 xmlreader_GetLocalName,
3552 xmlreader_GetPrefix,
3553 xmlreader_GetValue,
3554 xmlreader_ReadValueChunk,
3555 xmlreader_GetBaseUri,
3556 xmlreader_IsDefault,
3557 xmlreader_IsEmptyElement,
3558 xmlreader_GetLineNumber,
3559 xmlreader_GetLinePosition,
3560 xmlreader_GetAttributeCount,
3561 xmlreader_GetDepth,
3562 xmlreader_IsEOF
3563 };
3564
3565 /** IXmlReaderInput **/
3566 static HRESULT WINAPI xmlreaderinput_QueryInterface(IXmlReaderInput *iface, REFIID riid, void** ppvObject)
3567 {
3568 xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
3569
3570 TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObject);
3571
3572 if (IsEqualGUID(riid, &IID_IXmlReaderInput) ||
3573 IsEqualGUID(riid, &IID_IUnknown))
3574 {
3575 *ppvObject = iface;
3576 }
3577 else
3578 {
3579 WARN("interface %s not implemented\n", debugstr_guid(riid));
3580 *ppvObject = NULL;
3581 return E_NOINTERFACE;
3582 }
3583
3584 IUnknown_AddRef(iface);
3585
3586 return S_OK;
3587 }
3588
3589 static ULONG WINAPI xmlreaderinput_AddRef(IXmlReaderInput *iface)
3590 {
3591 xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
3592 ULONG ref = InterlockedIncrement(&This->ref);
3593 TRACE("(%p)->(%d)\n", This, ref);
3594 return ref;
3595 }
3596
3597 static ULONG WINAPI xmlreaderinput_Release(IXmlReaderInput *iface)
3598 {
3599 xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
3600 LONG ref = InterlockedDecrement(&This->ref);
3601
3602 TRACE("(%p)->(%d)\n", This, ref);
3603
3604 if (ref == 0)
3605 {
3606 IMalloc *imalloc = This->imalloc;
3607 if (This->input) IUnknown_Release(This->input);
3608 if (This->stream) ISequentialStream_Release(This->stream);
3609 if (This->buffer) free_input_buffer(This->buffer);
3610 readerinput_free(This, This->baseuri);
3611 readerinput_free(This, This);
3612 if (imalloc) IMalloc_Release(imalloc);
3613 }
3614
3615 return ref;
3616 }
3617
3618 static const struct IUnknownVtbl xmlreaderinputvtbl =
3619 {
3620 xmlreaderinput_QueryInterface,
3621 xmlreaderinput_AddRef,
3622 xmlreaderinput_Release
3623 };
3624
3625 HRESULT WINAPI CreateXmlReader(REFIID riid, void **obj, IMalloc *imalloc)
3626 {
3627 xmlreader *reader;
3628 HRESULT hr;
3629 int i;
3630
3631 TRACE("(%s, %p, %p)\n", wine_dbgstr_guid(riid), obj, imalloc);
3632
3633 if (imalloc)
3634 reader = IMalloc_Alloc(imalloc, sizeof(*reader));
3635 else
3636 reader = heap_alloc(sizeof(*reader));
3637 if (!reader)
3638 return E_OUTOFMEMORY;
3639
3640 memset(reader, 0, sizeof(*reader));
3641 reader->IXmlReader_iface.lpVtbl = &xmlreader_vtbl;
3642 reader->ref = 1;
3643 reader->state = XmlReadState_Closed;
3644 reader->instate = XmlReadInState_Initial;
3645 reader->resumestate = XmlReadResumeState_Initial;
3646 reader->dtdmode = DtdProcessing_Prohibit;
3647 reader->imalloc = imalloc;
3648 if (imalloc) IMalloc_AddRef(imalloc);
3649 reader->nodetype = XmlNodeType_None;
3650 list_init(&reader->attrs);
3651 list_init(&reader->nsdef);
3652 list_init(&reader->ns);
3653 list_init(&reader->elements);
3654 reader->max_depth = 256;
3655
3656 reader->chunk_read_off = 0;
3657 for (i = 0; i < StringValue_Last; i++)
3658 reader->strvalues[i] = strval_empty;
3659
3660 hr = IXmlReader_QueryInterface(&reader->IXmlReader_iface, riid, obj);
3661 IXmlReader_Release(&reader->IXmlReader_iface);
3662
3663 TRACE("returning iface %p, hr %#x\n", *obj, hr);
3664
3665 return hr;
3666 }
3667
3668 HRESULT WINAPI CreateXmlReaderInputWithEncodingName(IUnknown *stream,
3669 IMalloc *imalloc,
3670 LPCWSTR encoding,
3671 BOOL hint,
3672 LPCWSTR base_uri,
3673 IXmlReaderInput **ppInput)
3674 {
3675 xmlreaderinput *readerinput;
3676 HRESULT hr;
3677
3678 TRACE("%p %p %s %d %s %p\n", stream, imalloc, wine_dbgstr_w(encoding),
3679 hint, wine_dbgstr_w(base_uri), ppInput);
3680
3681 if (!stream || !ppInput) return E_INVALIDARG;
3682
3683 if (imalloc)
3684 readerinput = IMalloc_Alloc(imalloc, sizeof(*readerinput));
3685 else
3686 readerinput = heap_alloc(sizeof(*readerinput));
3687 if(!readerinput) return E_OUTOFMEMORY;
3688
3689 readerinput->IXmlReaderInput_iface.lpVtbl = &xmlreaderinputvtbl;
3690 readerinput->ref = 1;
3691 readerinput->imalloc = imalloc;
3692 readerinput->stream = NULL;
3693 if (imalloc) IMalloc_AddRef(imalloc);
3694 readerinput->encoding = parse_encoding_name(encoding, -1);
3695 readerinput->hint = hint;
3696 readerinput->baseuri = readerinput_strdupW(readerinput, base_uri);
3697 readerinput->pending = 0;
3698
3699 hr = alloc_input_buffer(readerinput);
3700 if (hr != S_OK)
3701 {
3702 readerinput_free(readerinput, readerinput->baseuri);
3703 readerinput_free(readerinput, readerinput);
3704 if (imalloc) IMalloc_Release(imalloc);
3705 return hr;
3706 }
3707 IUnknown_QueryInterface(stream, &IID_IUnknown, (void**)&readerinput->input);
3708
3709 *ppInput = &readerinput->IXmlReaderInput_iface;
3710
3711 TRACE("returning iface %p\n", *ppInput);
3712
3713 return S_OK;
3714 }
Windows API implementation