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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: xml.cpp | |
3 | // Purpose: wxXmlDocument - XML parser & data holder class | |
4 | // Author: Vaclav Slavik | |
5 | // Created: 2000/03/05 | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 2000 Vaclav Slavik | |
8 | // Licence: wxWindows licence | |
9 | ///////////////////////////////////////////////////////////////////////////// | |
10 | ||
11 | // For compilers that support precompilation, includes "wx.h". | |
12 | #include "wx/wxprec.h" | |
13 | ||
14 | #ifdef __BORLANDC__ | |
15 | #pragma hdrstop | |
16 | #endif | |
17 | ||
18 | #include "wx/xml/xml.h" | |
19 | ||
20 | #if wxUSE_XML | |
21 | ||
22 | #include "wx/wfstream.h" | |
23 | #include "wx/datstrm.h" | |
24 | #include "wx/zstream.h" | |
25 | #include "wx/log.h" | |
26 | #include "wx/intl.h" | |
27 | #include "wx/strconv.h" | |
28 | ||
29 | #include "expat.h" // from Expat | |
30 | ||
31 | // DLL options compatibility check: | |
32 | #include "wx/app.h" | |
33 | WX_CHECK_BUILD_OPTIONS("wxXML") | |
34 | ||
35 | //----------------------------------------------------------------------------- | |
36 | // wxXmlNode | |
37 | //----------------------------------------------------------------------------- | |
38 | ||
39 | wxXmlNode::wxXmlNode(wxXmlNode *parent,wxXmlNodeType type, | |
40 | const wxString& name, const wxString& content, | |
41 | wxXmlProperty *props, wxXmlNode *next) | |
42 | : m_type(type), m_name(name), m_content(content), | |
43 | m_properties(props), m_parent(parent), | |
44 | m_children(NULL), m_next(next) | |
45 | { | |
46 | if (m_parent) | |
47 | { | |
48 | if (m_parent->m_children) | |
49 | { | |
50 | m_next = m_parent->m_children; | |
51 | m_parent->m_children = this; | |
52 | } | |
53 | else | |
54 | m_parent->m_children = this; | |
55 | } | |
56 | } | |
57 | ||
58 | wxXmlNode::wxXmlNode(wxXmlNodeType type, const wxString& name, | |
59 | const wxString& content) | |
60 | : m_type(type), m_name(name), m_content(content), | |
61 | m_properties(NULL), m_parent(NULL), | |
62 | m_children(NULL), m_next(NULL) | |
63 | {} | |
64 | ||
65 | wxXmlNode::wxXmlNode(const wxXmlNode& node) | |
66 | { | |
67 | m_next = NULL; | |
68 | m_parent = NULL; | |
69 | DoCopy(node); | |
70 | } | |
71 | ||
72 | wxXmlNode::~wxXmlNode() | |
73 | { | |
74 | wxXmlNode *c, *c2; | |
75 | for (c = m_children; c; c = c2) | |
76 | { | |
77 | c2 = c->m_next; | |
78 | delete c; | |
79 | } | |
80 | ||
81 | wxXmlProperty *p, *p2; | |
82 | for (p = m_properties; p; p = p2) | |
83 | { | |
84 | p2 = p->GetNext(); | |
85 | delete p; | |
86 | } | |
87 | } | |
88 | ||
89 | wxXmlNode& wxXmlNode::operator=(const wxXmlNode& node) | |
90 | { | |
91 | wxDELETE(m_properties); | |
92 | wxDELETE(m_children); | |
93 | DoCopy(node); | |
94 | return *this; | |
95 | } | |
96 | ||
97 | void wxXmlNode::DoCopy(const wxXmlNode& node) | |
98 | { | |
99 | m_type = node.m_type; | |
100 | m_name = node.m_name; | |
101 | m_content = node.m_content; | |
102 | m_children = NULL; | |
103 | ||
104 | wxXmlNode *n = node.m_children; | |
105 | while (n) | |
106 | { | |
107 | AddChild(new wxXmlNode(*n)); | |
108 | n = n->GetNext(); | |
109 | } | |
110 | ||
111 | m_properties = NULL; | |
112 | wxXmlProperty *p = node.m_properties; | |
113 | while (p) | |
114 | { | |
115 | AddProperty(p->GetName(), p->GetValue()); | |
116 | p = p->GetNext(); | |
117 | } | |
118 | } | |
119 | ||
120 | bool wxXmlNode::HasProp(const wxString& propName) const | |
121 | { | |
122 | wxXmlProperty *prop = GetProperties(); | |
123 | ||
124 | while (prop) | |
125 | { | |
126 | if (prop->GetName() == propName) return true; | |
127 | prop = prop->GetNext(); | |
128 | } | |
129 | ||
130 | return false; | |
131 | } | |
132 | ||
133 | bool wxXmlNode::GetPropVal(const wxString& propName, wxString *value) const | |
134 | { | |
135 | wxXmlProperty *prop = GetProperties(); | |
136 | ||
137 | while (prop) | |
138 | { | |
139 | if (prop->GetName() == propName) | |
140 | { | |
141 | *value = prop->GetValue(); | |
142 | return true; | |
143 | } | |
144 | prop = prop->GetNext(); | |
145 | } | |
146 | ||
147 | return false; | |
148 | } | |
149 | ||
150 | wxString wxXmlNode::GetPropVal(const wxString& propName, const wxString& defaultVal) const | |
151 | { | |
152 | wxString tmp; | |
153 | if (GetPropVal(propName, &tmp)) | |
154 | return tmp; | |
155 | ||
156 | return defaultVal; | |
157 | } | |
158 | ||
159 | void wxXmlNode::AddChild(wxXmlNode *child) | |
160 | { | |
161 | if (m_children == NULL) | |
162 | m_children = child; | |
163 | else | |
164 | { | |
165 | wxXmlNode *ch = m_children; | |
166 | while (ch->m_next) ch = ch->m_next; | |
167 | ch->m_next = child; | |
168 | } | |
169 | child->m_next = NULL; | |
170 | child->m_parent = this; | |
171 | } | |
172 | ||
173 | void wxXmlNode::InsertChild(wxXmlNode *child, wxXmlNode *before_node) | |
174 | { | |
175 | wxASSERT_MSG(before_node->GetParent() == this, wxT("wxXmlNode::InsertChild - the node has incorrect parent")); | |
176 | ||
177 | if (m_children == before_node) | |
178 | m_children = child; | |
179 | else | |
180 | { | |
181 | wxXmlNode *ch = m_children; | |
182 | while (ch->m_next != before_node) ch = ch->m_next; | |
183 | ch->m_next = child; | |
184 | } | |
185 | ||
186 | child->m_parent = this; | |
187 | child->m_next = before_node; | |
188 | } | |
189 | ||
190 | bool wxXmlNode::RemoveChild(wxXmlNode *child) | |
191 | { | |
192 | if (m_children == NULL) | |
193 | return false; | |
194 | else if (m_children == child) | |
195 | { | |
196 | m_children = child->m_next; | |
197 | child->m_parent = NULL; | |
198 | child->m_next = NULL; | |
199 | return true; | |
200 | } | |
201 | else | |
202 | { | |
203 | wxXmlNode *ch = m_children; | |
204 | while (ch->m_next) | |
205 | { | |
206 | if (ch->m_next == child) | |
207 | { | |
208 | ch->m_next = child->m_next; | |
209 | child->m_parent = NULL; | |
210 | child->m_next = NULL; | |
211 | return true; | |
212 | } | |
213 | ch = ch->m_next; | |
214 | } | |
215 | return false; | |
216 | } | |
217 | } | |
218 | ||
219 | void wxXmlNode::AddProperty(const wxString& name, const wxString& value) | |
220 | { | |
221 | AddProperty(new wxXmlProperty(name, value, NULL)); | |
222 | } | |
223 | ||
224 | void wxXmlNode::AddProperty(wxXmlProperty *prop) | |
225 | { | |
226 | if (m_properties == NULL) | |
227 | m_properties = prop; | |
228 | else | |
229 | { | |
230 | wxXmlProperty *p = m_properties; | |
231 | while (p->GetNext()) p = p->GetNext(); | |
232 | p->SetNext(prop); | |
233 | } | |
234 | } | |
235 | ||
236 | bool wxXmlNode::DeleteProperty(const wxString& name) | |
237 | { | |
238 | wxXmlProperty *prop; | |
239 | ||
240 | if (m_properties == NULL) | |
241 | return false; | |
242 | ||
243 | else if (m_properties->GetName() == name) | |
244 | { | |
245 | prop = m_properties; | |
246 | m_properties = prop->GetNext(); | |
247 | prop->SetNext(NULL); | |
248 | delete prop; | |
249 | return true; | |
250 | } | |
251 | ||
252 | else | |
253 | { | |
254 | wxXmlProperty *p = m_properties; | |
255 | while (p->GetNext()) | |
256 | { | |
257 | if (p->GetNext()->GetName() == name) | |
258 | { | |
259 | prop = p->GetNext(); | |
260 | p->SetNext(prop->GetNext()); | |
261 | prop->SetNext(NULL); | |
262 | delete prop; | |
263 | return true; | |
264 | } | |
265 | p = p->GetNext(); | |
266 | } | |
267 | return false; | |
268 | } | |
269 | } | |
270 | ||
271 | ||
272 | ||
273 | //----------------------------------------------------------------------------- | |
274 | // wxXmlDocument | |
275 | //----------------------------------------------------------------------------- | |
276 | ||
277 | wxXmlDocument::wxXmlDocument() | |
278 | : m_version(wxT("1.0")), m_fileEncoding(wxT("utf-8")), m_root(NULL) | |
279 | { | |
280 | #if !wxUSE_UNICODE | |
281 | m_encoding = wxT("UTF-8"); | |
282 | #endif | |
283 | } | |
284 | ||
285 | wxXmlDocument::wxXmlDocument(const wxString& filename, const wxString& encoding) | |
286 | :wxObject(), m_root(NULL) | |
287 | { | |
288 | if ( !Load(filename, encoding) ) | |
289 | { | |
290 | wxDELETE(m_root); | |
291 | } | |
292 | } | |
293 | ||
294 | wxXmlDocument::wxXmlDocument(wxInputStream& stream, const wxString& encoding) | |
295 | :wxObject(), m_root(NULL) | |
296 | { | |
297 | if ( !Load(stream, encoding) ) | |
298 | { | |
299 | wxDELETE(m_root); | |
300 | } | |
301 | } | |
302 | ||
303 | wxXmlDocument::wxXmlDocument(const wxXmlDocument& doc) | |
304 | :wxObject() | |
305 | { | |
306 | DoCopy(doc); | |
307 | } | |
308 | ||
309 | wxXmlDocument& wxXmlDocument::operator=(const wxXmlDocument& doc) | |
310 | { | |
311 | wxDELETE(m_root); | |
312 | DoCopy(doc); | |
313 | return *this; | |
314 | } | |
315 | ||
316 | void wxXmlDocument::DoCopy(const wxXmlDocument& doc) | |
317 | { | |
318 | m_version = doc.m_version; | |
319 | #if !wxUSE_UNICODE | |
320 | m_encoding = doc.m_encoding; | |
321 | #endif | |
322 | m_fileEncoding = doc.m_fileEncoding; | |
323 | m_root = new wxXmlNode(*doc.m_root); | |
324 | } | |
325 | ||
326 | bool wxXmlDocument::Load(const wxString& filename, const wxString& encoding) | |
327 | { | |
328 | wxFileInputStream stream(filename); | |
329 | return Load(stream, encoding); | |
330 | } | |
331 | ||
332 | bool wxXmlDocument::Save(const wxString& filename) const | |
333 | { | |
334 | wxFileOutputStream stream(filename); | |
335 | return Save(stream); | |
336 | } | |
337 | ||
338 | ||
339 | ||
340 | //----------------------------------------------------------------------------- | |
341 | // wxXmlDocument loading routines | |
342 | //----------------------------------------------------------------------------- | |
343 | ||
344 | /* | |
345 | FIXME: | |
346 | - process all elements, including CDATA | |
347 | */ | |
348 | ||
349 | // converts Expat-produced string in UTF-8 into wxString. | |
350 | inline static wxString CharToString(wxMBConv *conv, | |
351 | const char *s, size_t len = wxSTRING_MAXLEN) | |
352 | { | |
353 | #if wxUSE_UNICODE | |
354 | (void)conv; | |
355 | return wxString(s, wxConvUTF8, len); | |
356 | #else | |
357 | if ( conv ) | |
358 | { | |
359 | size_t nLen = (len != wxSTRING_MAXLEN) ? len : | |
360 | wxConvUTF8.MB2WC((wchar_t*) NULL, s, 0); | |
361 | ||
362 | wchar_t *buf = new wchar_t[nLen+1]; | |
363 | wxConvUTF8.MB2WC(buf, s, nLen); | |
364 | buf[nLen] = 0; | |
365 | wxString str(buf, *conv, len); | |
366 | delete[] buf; | |
367 | return str; | |
368 | } | |
369 | else | |
370 | return wxString(s, len != wxSTRING_MAXLEN ? len : strlen(s)); | |
371 | #endif | |
372 | } | |
373 | ||
374 | struct wxXmlParsingContext | |
375 | { | |
376 | wxMBConv *conv; | |
377 | wxXmlNode *root; | |
378 | wxXmlNode *node; | |
379 | wxXmlNode *lastAsText; | |
380 | wxString encoding; | |
381 | wxString version; | |
382 | }; | |
383 | ||
384 | extern "C" { | |
385 | static void StartElementHnd(void *userData, const char *name, const char **atts) | |
386 | { | |
387 | wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData; | |
388 | wxXmlNode *node = new wxXmlNode(wxXML_ELEMENT_NODE, CharToString(ctx->conv, name)); | |
389 | const char **a = atts; | |
390 | while (*a) | |
391 | { | |
392 | node->AddProperty(CharToString(ctx->conv, a[0]), CharToString(ctx->conv, a[1])); | |
393 | a += 2; | |
394 | } | |
395 | if (ctx->root == NULL) | |
396 | ctx->root = node; | |
397 | else | |
398 | ctx->node->AddChild(node); | |
399 | ctx->node = node; | |
400 | ctx->lastAsText = NULL; | |
401 | } | |
402 | } | |
403 | ||
404 | extern "C" { | |
405 | static void EndElementHnd(void *userData, const char* WXUNUSED(name)) | |
406 | { | |
407 | wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData; | |
408 | ||
409 | ctx->node = ctx->node->GetParent(); | |
410 | ctx->lastAsText = NULL; | |
411 | } | |
412 | } | |
413 | ||
414 | extern "C" { | |
415 | static void TextHnd(void *userData, const char *s, int len) | |
416 | { | |
417 | wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData; | |
418 | char *buf = new char[len + 1]; | |
419 | ||
420 | buf[len] = '\0'; | |
421 | memcpy(buf, s, (size_t)len); | |
422 | ||
423 | if (ctx->lastAsText) | |
424 | { | |
425 | ctx->lastAsText->SetContent(ctx->lastAsText->GetContent() + | |
426 | CharToString(ctx->conv, buf)); | |
427 | } | |
428 | else | |
429 | { | |
430 | bool whiteOnly = true; | |
431 | for (char *c = buf; *c != '\0'; c++) | |
432 | if (*c != ' ' && *c != '\t' && *c != '\n' && *c != '\r') | |
433 | { | |
434 | whiteOnly = false; | |
435 | break; | |
436 | } | |
437 | if (!whiteOnly) | |
438 | { | |
439 | ctx->lastAsText = new wxXmlNode(wxXML_TEXT_NODE, wxT("text"), | |
440 | CharToString(ctx->conv, buf)); | |
441 | ctx->node->AddChild(ctx->lastAsText); | |
442 | } | |
443 | } | |
444 | ||
445 | delete[] buf; | |
446 | } | |
447 | } | |
448 | ||
449 | extern "C" { | |
450 | static void CommentHnd(void *userData, const char *data) | |
451 | { | |
452 | wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData; | |
453 | ||
454 | if (ctx->node) | |
455 | { | |
456 | // VS: ctx->node == NULL happens if there is a comment before | |
457 | // the root element (e.g. wxDesigner's output). We ignore such | |
458 | // comments, no big deal... | |
459 | ctx->node->AddChild(new wxXmlNode(wxXML_COMMENT_NODE, | |
460 | wxT("comment"), CharToString(ctx->conv, data))); | |
461 | } | |
462 | ctx->lastAsText = NULL; | |
463 | } | |
464 | } | |
465 | ||
466 | extern "C" { | |
467 | static void DefaultHnd(void *userData, const char *s, int len) | |
468 | { | |
469 | // XML header: | |
470 | if (len > 6 && memcmp(s, "<?xml ", 6) == 0) | |
471 | { | |
472 | wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData; | |
473 | ||
474 | wxString buf = CharToString(ctx->conv, s, (size_t)len); | |
475 | int pos; | |
476 | pos = buf.Find(wxT("encoding=")); | |
477 | if (pos != wxNOT_FOUND) | |
478 | ctx->encoding = buf.Mid(pos + 10).BeforeFirst(buf[(size_t)pos+9]); | |
479 | pos = buf.Find(wxT("version=")); | |
480 | if (pos != wxNOT_FOUND) | |
481 | ctx->version = buf.Mid(pos + 9).BeforeFirst(buf[(size_t)pos+8]); | |
482 | } | |
483 | } | |
484 | } | |
485 | ||
486 | extern "C" { | |
487 | static int UnknownEncodingHnd(void * WXUNUSED(encodingHandlerData), | |
488 | const XML_Char *name, XML_Encoding *info) | |
489 | { | |
490 | // We must build conversion table for expat. The easiest way to do so | |
491 | // is to let wxCSConv convert as string containing all characters to | |
492 | // wide character representation: | |
493 | wxString str(name, wxConvLibc); | |
494 | wxCSConv conv(str); | |
495 | char mbBuf[2]; | |
496 | wchar_t wcBuf[10]; | |
497 | size_t i; | |
498 | ||
499 | mbBuf[1] = 0; | |
500 | info->map[0] = 0; | |
501 | for (i = 0; i < 255; i++) | |
502 | { | |
503 | mbBuf[0] = (char)(i+1); | |
504 | if (conv.MB2WC(wcBuf, mbBuf, 2) == (size_t)-1) | |
505 | { | |
506 | // invalid/undefined byte in the encoding: | |
507 | info->map[i+1] = -1; | |
508 | } | |
509 | info->map[i+1] = (int)wcBuf[0]; | |
510 | } | |
511 | ||
512 | info->data = NULL; | |
513 | info->convert = NULL; | |
514 | info->release = NULL; | |
515 | ||
516 | return 1; | |
517 | } | |
518 | } | |
519 | ||
520 | bool wxXmlDocument::Load(wxInputStream& stream, const wxString& encoding) | |
521 | { | |
522 | #if wxUSE_UNICODE | |
523 | (void)encoding; | |
524 | #else | |
525 | m_encoding = encoding; | |
526 | #endif | |
527 | ||
528 | const size_t BUFSIZE = 1024; | |
529 | char buf[BUFSIZE]; | |
530 | wxXmlParsingContext ctx; | |
531 | bool done; | |
532 | XML_Parser parser = XML_ParserCreate(NULL); | |
533 | ||
534 | ctx.root = ctx.node = NULL; | |
535 | ctx.encoding = wxT("UTF-8"); // default in absence of encoding="" | |
536 | ctx.conv = NULL; | |
537 | #if !wxUSE_UNICODE | |
538 | if ( encoding != wxT("UTF-8") && encoding != wxT("utf-8") ) | |
539 | ctx.conv = new wxCSConv(encoding); | |
540 | #endif | |
541 | ||
542 | XML_SetUserData(parser, (void*)&ctx); | |
543 | XML_SetElementHandler(parser, StartElementHnd, EndElementHnd); | |
544 | XML_SetCharacterDataHandler(parser, TextHnd); | |
545 | XML_SetCommentHandler(parser, CommentHnd); | |
546 | XML_SetDefaultHandler(parser, DefaultHnd); | |
547 | XML_SetUnknownEncodingHandler(parser, UnknownEncodingHnd, NULL); | |
548 | ||
549 | bool ok = true; | |
550 | do | |
551 | { | |
552 | size_t len = stream.Read(buf, BUFSIZE).LastRead(); | |
553 | done = (len < BUFSIZE); | |
554 | if (!XML_Parse(parser, buf, len, done)) | |
555 | { | |
556 | wxString error(XML_ErrorString(XML_GetErrorCode(parser)), | |
557 | *wxConvCurrent); | |
558 | wxLogError(_("XML parsing error: '%s' at line %d"), | |
559 | error.c_str(), | |
560 | XML_GetCurrentLineNumber(parser)); | |
561 | ok = false; | |
562 | break; | |
563 | } | |
564 | } while (!done); | |
565 | ||
566 | if (ok) | |
567 | { | |
568 | if (!ctx.version.empty()) | |
569 | SetVersion(ctx.version); | |
570 | if (!ctx.encoding.empty()) | |
571 | SetFileEncoding(ctx.encoding); | |
572 | SetRoot(ctx.root); | |
573 | } | |
574 | else | |
575 | { | |
576 | delete ctx.root; | |
577 | } | |
578 | ||
579 | XML_ParserFree(parser); | |
580 | #if !wxUSE_UNICODE | |
581 | if ( ctx.conv ) | |
582 | delete ctx.conv; | |
583 | #endif | |
584 | ||
585 | return ok; | |
586 | ||
587 | } | |
588 | ||
589 | ||
590 | ||
591 | //----------------------------------------------------------------------------- | |
592 | // wxXmlDocument saving routines | |
593 | //----------------------------------------------------------------------------- | |
594 | ||
595 | // write string to output: | |
596 | inline static void OutputString(wxOutputStream& stream, const wxString& str, | |
597 | #if wxUSE_UNICODE | |
598 | wxMBConv * WXUNUSED(convMem), | |
599 | #else | |
600 | wxMBConv *convMem, | |
601 | #endif | |
602 | wxMBConv *convFile) | |
603 | { | |
604 | if (str.empty()) return; | |
605 | #if wxUSE_UNICODE | |
606 | const wxWX2MBbuf buf(str.mb_str(*(convFile ? convFile : &wxConvUTF8))); | |
607 | stream.Write((const char*)buf, strlen((const char*)buf)); | |
608 | #else | |
609 | if ( convFile == NULL ) | |
610 | stream.Write(str.mb_str(), str.Len()); | |
611 | else | |
612 | { | |
613 | wxString str2(str.wc_str(*convMem), *convFile); | |
614 | stream.Write(str2.mb_str(), str2.Len()); | |
615 | } | |
616 | #endif | |
617 | } | |
618 | ||
619 | // Same as above, but create entities first. | |
620 | // Translates '<' to "<", '>' to ">" and '&' to "&" | |
621 | static void OutputStringEnt(wxOutputStream& stream, const wxString& str, | |
622 | wxMBConv *convMem, wxMBConv *convFile, | |
623 | bool escapeQuotes = false) | |
624 | { | |
625 | wxString buf; | |
626 | size_t i, last, len; | |
627 | wxChar c; | |
628 | ||
629 | len = str.Len(); | |
630 | last = 0; | |
631 | for (i = 0; i < len; i++) | |
632 | { | |
633 | c = str.GetChar(i); | |
634 | if (c == wxT('<') || c == wxT('>') || | |
635 | (c == wxT('&') && str.Mid(i+1, 4) != wxT("amp;")) || | |
636 | (escapeQuotes && c == wxT('"'))) | |
637 | { | |
638 | OutputString(stream, str.Mid(last, i - last), convMem, convFile); | |
639 | switch (c) | |
640 | { | |
641 | case wxT('<'): | |
642 | OutputString(stream, wxT("<"), NULL, NULL); | |
643 | break; | |
644 | case wxT('>'): | |
645 | OutputString(stream, wxT(">"), NULL, NULL); | |
646 | break; | |
647 | case wxT('&'): | |
648 | OutputString(stream, wxT("&"), NULL, NULL); | |
649 | break; | |
650 | case wxT('"'): | |
651 | OutputString(stream, wxT("""), NULL, NULL); | |
652 | break; | |
653 | default: break; | |
654 | } | |
655 | last = i + 1; | |
656 | } | |
657 | } | |
658 | OutputString(stream, str.Mid(last, i - last), convMem, convFile); | |
659 | } | |
660 | ||
661 | inline static void OutputIndentation(wxOutputStream& stream, int indent) | |
662 | { | |
663 | wxString str = wxT("\n"); | |
664 | for (int i = 0; i < indent; i++) | |
665 | str << wxT(' ') << wxT(' '); | |
666 | OutputString(stream, str, NULL, NULL); | |
667 | } | |
668 | ||
669 | static void OutputNode(wxOutputStream& stream, wxXmlNode *node, int indent, | |
670 | wxMBConv *convMem, wxMBConv *convFile) | |
671 | { | |
672 | wxXmlNode *n, *prev; | |
673 | wxXmlProperty *prop; | |
674 | ||
675 | switch (node->GetType()) | |
676 | { | |
677 | case wxXML_TEXT_NODE: | |
678 | OutputStringEnt(stream, node->GetContent(), convMem, convFile); | |
679 | break; | |
680 | ||
681 | case wxXML_ELEMENT_NODE: | |
682 | OutputString(stream, wxT("<"), NULL, NULL); | |
683 | OutputString(stream, node->GetName(), NULL, NULL); | |
684 | ||
685 | prop = node->GetProperties(); | |
686 | while (prop) | |
687 | { | |
688 | OutputString(stream, wxT(" ") + prop->GetName() + wxT("=\""), | |
689 | NULL, NULL); | |
690 | OutputStringEnt(stream, prop->GetValue(), NULL, NULL, | |
691 | true/*escapeQuotes*/); | |
692 | OutputString(stream, wxT("\""), NULL, NULL); | |
693 | prop = prop->GetNext(); | |
694 | } | |
695 | ||
696 | if (node->GetChildren()) | |
697 | { | |
698 | OutputString(stream, wxT(">"), NULL, NULL); | |
699 | prev = NULL; | |
700 | n = node->GetChildren(); | |
701 | while (n) | |
702 | { | |
703 | if (n && n->GetType() != wxXML_TEXT_NODE) | |
704 | OutputIndentation(stream, indent + 1); | |
705 | OutputNode(stream, n, indent + 1, convMem, convFile); | |
706 | prev = n; | |
707 | n = n->GetNext(); | |
708 | } | |
709 | if (prev && prev->GetType() != wxXML_TEXT_NODE) | |
710 | OutputIndentation(stream, indent); | |
711 | OutputString(stream, wxT("</"), NULL, NULL); | |
712 | OutputString(stream, node->GetName(), NULL, NULL); | |
713 | OutputString(stream, wxT(">"), NULL, NULL); | |
714 | } | |
715 | else | |
716 | OutputString(stream, wxT("/>"), NULL, NULL); | |
717 | break; | |
718 | ||
719 | case wxXML_COMMENT_NODE: | |
720 | OutputString(stream, wxT("<!--"), NULL, NULL); | |
721 | OutputString(stream, node->GetContent(), convMem, convFile); | |
722 | OutputString(stream, wxT("-->"), NULL, NULL); | |
723 | break; | |
724 | ||
725 | default: | |
726 | wxFAIL_MSG(wxT("unsupported node type")); | |
727 | } | |
728 | } | |
729 | ||
730 | bool wxXmlDocument::Save(wxOutputStream& stream) const | |
731 | { | |
732 | if ( !IsOk() ) | |
733 | return false; | |
734 | ||
735 | wxString s; | |
736 | ||
737 | wxMBConv *convMem = NULL; | |
738 | ||
739 | #if wxUSE_UNICODE | |
740 | wxMBConv *convFile = new wxCSConv(GetFileEncoding()); | |
741 | #else | |
742 | wxMBConv *convFile = NULL; | |
743 | if ( GetFileEncoding() != GetEncoding() ) | |
744 | { | |
745 | convFile = new wxCSConv(GetFileEncoding()); | |
746 | convMem = new wxCSConv(GetEncoding()); | |
747 | } | |
748 | #endif | |
749 | ||
750 | s.Printf(wxT("<?xml version=\"%s\" encoding=\"%s\"?>\n"), | |
751 | GetVersion().c_str(), GetFileEncoding().c_str()); | |
752 | OutputString(stream, s, NULL, NULL); | |
753 | ||
754 | OutputNode(stream, GetRoot(), 0, convMem, convFile); | |
755 | OutputString(stream, wxT("\n"), NULL, NULL); | |
756 | ||
757 | if ( convFile ) | |
758 | delete convFile; | |
759 | if ( convMem ) | |
760 | delete convMem; | |
761 | ||
762 | return true; | |
763 | } | |
764 | ||
765 | #endif // wxUSE_XML |