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