X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ccec90930cfc38bd4347a97f46481242d9fd23cd..12bb29f5432174ecbd65549bda832d70d34a98ae:/src/xml/xml.cpp diff --git a/src/xml/xml.cpp b/src/xml/xml.cpp index 922332b1d6..0fc27c246b 100644 --- a/src/xml/xml.cpp +++ b/src/xml/xml.cpp @@ -58,6 +58,8 @@ wxXmlNode::wxXmlNode(wxXmlNode *parent,wxXmlNodeType type, m_lineNo(lineNo), m_noConversion(false) { + wxASSERT_MSG ( type != wxXML_ELEMENT_NODE || content.empty(), "element nodes can't have content" ); + if (m_parent) { if (m_parent->m_children) @@ -77,7 +79,9 @@ wxXmlNode::wxXmlNode(wxXmlNodeType type, const wxString& name, m_attrs(NULL), m_parent(NULL), m_children(NULL), m_next(NULL), m_lineNo(lineNo), m_noConversion(false) -{} +{ + wxASSERT_MSG ( type != wxXML_ELEMENT_NODE || content.empty(), "element nodes can't have content" ); +} wxXmlNode::wxXmlNode(const wxXmlNode& node) { @@ -87,6 +91,22 @@ wxXmlNode::wxXmlNode(const wxXmlNode& node) } wxXmlNode::~wxXmlNode() +{ + DoFree(); +} + +wxXmlNode& wxXmlNode::operator=(const wxXmlNode& node) +{ + if ( &node != this ) + { + DoFree(); + DoCopy(node); + } + + return *this; +} + +void wxXmlNode::DoFree() { wxXmlNode *c, *c2; for (c = m_children; c; c = c2) @@ -103,14 +123,6 @@ wxXmlNode::~wxXmlNode() } } -wxXmlNode& wxXmlNode::operator=(const wxXmlNode& node) -{ - wxDELETE(m_attrs); - wxDELETE(m_children); - DoCopy(node); - return *this; -} - void wxXmlNode::DoCopy(const wxXmlNode& node) { m_type = node.m_type; @@ -396,7 +408,7 @@ bool wxXmlNode::IsWhitespaceOnly() const //----------------------------------------------------------------------------- wxXmlDocument::wxXmlDocument() - : m_version(wxS("1.0")), m_fileEncoding(wxS("utf-8")), m_root(NULL) + : m_version(wxS("1.0")), m_fileEncoding(wxS("UTF-8")), m_docNode(NULL) { #if !wxUSE_UNICODE m_encoding = wxS("UTF-8"); @@ -404,20 +416,20 @@ wxXmlDocument::wxXmlDocument() } wxXmlDocument::wxXmlDocument(const wxString& filename, const wxString& encoding) - :wxObject(), m_root(NULL) + :wxObject(), m_docNode(NULL) { if ( !Load(filename, encoding) ) { - wxDELETE(m_root); + wxDELETE(m_docNode); } } wxXmlDocument::wxXmlDocument(wxInputStream& stream, const wxString& encoding) - :wxObject(), m_root(NULL) + :wxObject(), m_docNode(NULL) { if ( !Load(stream, encoding) ) { - wxDELETE(m_root); + wxDELETE(m_docNode); } } @@ -429,7 +441,7 @@ wxXmlDocument::wxXmlDocument(const wxXmlDocument& doc) wxXmlDocument& wxXmlDocument::operator=(const wxXmlDocument& doc) { - wxDELETE(m_root); + wxDELETE(m_docNode); DoCopy(doc); return *this; } @@ -442,16 +454,16 @@ void wxXmlDocument::DoCopy(const wxXmlDocument& doc) #endif m_fileEncoding = doc.m_fileEncoding; - if (doc.m_root) - m_root = new wxXmlNode(*doc.m_root); + if (doc.m_docNode) + m_docNode = new wxXmlNode(*doc.m_docNode); else - m_root = NULL; + m_docNode = NULL; } bool wxXmlDocument::Load(const wxString& filename, const wxString& encoding, int flags) { wxFileInputStream stream(filename); - if (!stream.Ok()) + if (!stream.IsOk()) return false; return Load(stream, encoding, flags); } @@ -459,12 +471,96 @@ bool wxXmlDocument::Load(const wxString& filename, const wxString& encoding, int bool wxXmlDocument::Save(const wxString& filename, int indentstep) const { wxFileOutputStream stream(filename); - if (!stream.Ok()) + if (!stream.IsOk()) return false; return Save(stream, indentstep); } +wxXmlNode *wxXmlDocument::GetRoot() const +{ + wxXmlNode *node = m_docNode; + if (node) + { + node = m_docNode->GetChildren(); + while (node != NULL && node->GetType() != wxXML_ELEMENT_NODE) + node = node->GetNext(); + } + return node; +} + +wxXmlNode *wxXmlDocument::DetachRoot() +{ + wxXmlNode *node = m_docNode; + if (node) + { + node = m_docNode->GetChildren(); + wxXmlNode *prev = NULL; + while (node != NULL && node->GetType() != wxXML_ELEMENT_NODE) + { + prev = node; + node = node->GetNext(); + } + if (node) + { + if (node == m_docNode->GetChildren()) + m_docNode->SetChildren(node->GetNext()); + + if (prev) + prev->SetNext(node->GetNext()); + + node->SetParent(NULL); + node->SetNext(NULL); + } + } + return node; +} + +void wxXmlDocument::SetRoot(wxXmlNode *root) +{ + if (root) + { + wxASSERT_MSG( root->GetType() == wxXML_ELEMENT_NODE, + "Can only set an element type node as root" ); + } + + wxXmlNode *node = m_docNode; + if (node) + { + node = m_docNode->GetChildren(); + wxXmlNode *prev = NULL; + while (node != NULL && node->GetType() != wxXML_ELEMENT_NODE) + { + prev = node; + node = node->GetNext(); + } + if (node && root) + { + root->SetNext( node->GetNext() ); + wxDELETE(node); + } + if (prev) + prev->SetNext(root); + else + m_docNode->SetChildren(root); + } + else + { + m_docNode = new wxXmlNode(wxXML_DOCUMENT_NODE, wxEmptyString); + m_docNode->SetChildren(root); + } + if (root) + root->SetParent(m_docNode); +} +void wxXmlDocument::AppendToProlog(wxXmlNode *node) +{ + if (!m_docNode) + m_docNode = new wxXmlNode(wxXML_DOCUMENT_NODE, wxEmptyString); + if (IsOk()) + m_docNode->InsertChild( node, GetRoot() ); + else + m_docNode->AddChild( node ); +} //----------------------------------------------------------------------------- // wxXmlDocument loading routines @@ -509,7 +605,6 @@ struct wxXmlParsingContext { wxXmlParsingContext() : conv(NULL), - root(NULL), node(NULL), lastChild(NULL), lastAsText(NULL), @@ -518,7 +613,6 @@ struct wxXmlParsingContext XML_Parser parser; wxMBConv *conv; - wxXmlNode *root; wxXmlNode *node; // the node being parsed wxXmlNode *lastChild; // the last child of "node" wxXmlNode *lastAsText; // the last _text_ child of "node" @@ -551,16 +645,8 @@ static void StartElementHnd(void *userData, const char *name, const char **atts) a += 2; } - if (ctx->root == NULL) - { - ctx->root = node; - } - else - { - ASSERT_LAST_CHILD_OK(ctx); - ctx->node->InsertChildAfter(node, ctx->lastChild); - } - + ASSERT_LAST_CHILD_OK(ctx); + ctx->node->InsertChildAfter(node, ctx->lastChild); ctx->lastAsText = NULL; ctx->lastChild = NULL; // our new node "node" has no children yet @@ -636,21 +722,29 @@ static void CommentHnd(void *userData, const char *data) { wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData; - if (ctx->node) - { - wxXmlNode *commentnode = - new wxXmlNode(wxXML_COMMENT_NODE, - wxS("comment"), CharToString(ctx->conv, data), - XML_GetCurrentLineNumber(ctx->parser)); - - ASSERT_LAST_CHILD_OK(ctx); - ctx->node->InsertChildAfter(commentnode, ctx->lastChild); - ctx->lastChild = commentnode; - } - //else: ctx->node == NULL happens if there is a comment before - // the root element. We current don't have a way to represent - // these in wxXmlDocument (FIXME). + wxXmlNode *commentnode = + new wxXmlNode(wxXML_COMMENT_NODE, + wxS("comment"), CharToString(ctx->conv, data), + XML_GetCurrentLineNumber(ctx->parser)); + + ASSERT_LAST_CHILD_OK(ctx); + ctx->node->InsertChildAfter(commentnode, ctx->lastChild); + ctx->lastChild = commentnode; + ctx->lastAsText = NULL; +} + +static void PIHnd(void *userData, const char *target, const char *data) +{ + wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData; + + wxXmlNode *pinode = + new wxXmlNode(wxXML_PI_NODE, CharToString(ctx->conv, target), + CharToString(ctx->conv, data), + XML_GetCurrentLineNumber(ctx->parser)); + ASSERT_LAST_CHILD_OK(ctx); + ctx->node->InsertChildAfter(pinode, ctx->lastChild); + ctx->lastChild = pinode; ctx->lastAsText = NULL; } @@ -718,6 +812,7 @@ bool wxXmlDocument::Load(wxInputStream& stream, const wxString& encoding, int fl wxXmlParsingContext ctx; bool done; XML_Parser parser = XML_ParserCreate(NULL); + wxXmlNode *root = new wxXmlNode(wxXML_DOCUMENT_NODE, wxEmptyString); ctx.encoding = wxS("UTF-8"); // default in absence of encoding="" ctx.conv = NULL; @@ -727,12 +822,14 @@ bool wxXmlDocument::Load(wxInputStream& stream, const wxString& encoding, int fl #endif ctx.removeWhiteOnlyNodes = (flags & wxXMLDOC_KEEP_WHITESPACE_NODES) == 0; ctx.parser = parser; + ctx.node = root; XML_SetUserData(parser, (void*)&ctx); XML_SetElementHandler(parser, StartElementHnd, EndElementHnd); XML_SetCharacterDataHandler(parser, TextHnd); XML_SetCdataSectionHandler(parser, StartCdataHnd, EndCdataHnd);; XML_SetCommentHandler(parser, CommentHnd); + XML_SetProcessingInstructionHandler(parser, PIHnd); XML_SetDefaultHandler(parser, DefaultHnd); XML_SetUnknownEncodingHandler(parser, UnknownEncodingHnd, NULL); @@ -759,11 +856,11 @@ bool wxXmlDocument::Load(wxInputStream& stream, const wxString& encoding, int fl SetVersion(ctx.version); if (!ctx.encoding.empty()) SetFileEncoding(ctx.encoding); - SetRoot(ctx.root); + SetDocumentNode(root); } else { - delete ctx.root; + delete root; } XML_ParserFree(parser); @@ -995,6 +1092,14 @@ bool OutputNode(wxOutputStream& stream, OutputString(stream, wxS("-->"), convMem, convFile); break; + case wxXML_PI_NODE: + rc = OutputString(stream, wxT("GetName(), convMem, convFile) && + OutputString(stream, wxT(" "), convMem, convFile) && + OutputString(stream, node->GetContent(), convMem, convFile) && + OutputString(stream, wxT("?>"), convMem, convFile); + break; + default: wxFAIL_MSG("unsupported node type"); rc = false; @@ -1023,17 +1128,24 @@ bool wxXmlDocument::Save(wxOutputStream& stream, int indentstep) const //else: file and in-memory encodings are the same, no conversion needed #endif - return OutputString(stream, - wxString::Format - ( - wxS("\n"), - GetVersion(), GetFileEncoding() - ), - convMem.get(), - convFile.get()) && - OutputNode(stream, GetRoot(), 0, - convMem.get(), convFile.get(), indentstep) && - OutputString(stream, wxS("\n"), convMem.get(), convFile.get()); + wxString dec = wxString::Format( + wxS("\n"), + GetVersion(), GetFileEncoding() + ); + bool rc = OutputString(stream, dec, convMem.get(), convFile.get()); + + wxXmlNode *node = GetDocumentNode(); + if ( node ) + node = node->GetChildren(); + + while( rc && node ) + { + rc = OutputNode(stream, node, 0, convMem.get(), + convFile.get(), indentstep) && + OutputString(stream, wxS("\n"), convMem.get(), convFile.get()); + node = node->GetNext(); + } + return rc; } /*static*/ wxVersionInfo wxXmlDocument::GetLibraryVersionInfo()