/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtXml module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or (at your option) the GNU General ** Public license version 3 or any later version approved by the KDE Free ** Qt Foundation. The licenses are as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-2.0.html and ** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include #include #include "private/qxmlutils_p.h" #ifndef QT_NO_DOM #include #include #include #include #include #include #include #include #include #include "private/qxml_p.h" #include #include #include #include #include QT_BEGIN_NAMESPACE /* ### old todo comments -- I don't know if they still apply... If the document dies, remove all pointers to it from children which can not be deleted at this time. If a node dies and has direct children which can not be deleted, then remove the pointer to the parent. createElement and friends create double reference counts. */ /* ##### new TODOs: Remove emtpy emthods in the *Private classes Make a lot of the (mostly empty) methods in the public classes inline. Specially constructors assignment operators and comparison operators are candidates. */ /* Reference counting: Some simple rules: 1) If an intern object returns a pointer to another intern object then the reference count of the returned object is not increased. 2) If an extern object is created and gets a pointer to some intern object, then the extern object increases the intern objects reference count. 3) If an extern object is deleted, then it decreases the reference count on its associated intern object and deletes it if nobody else hold references on the intern object. */ /* Helper to split a qualified name in the prefix and local name. */ static void qt_split_namespace(QString& prefix, QString& name, const QString& qName, bool hasURI) { int i = qName.indexOf(QLatin1Char(':')); if (i == -1) { if (hasURI) prefix = QLatin1String(""); else prefix.clear(); name = qName; } else { prefix = qName.left(i); name = qName.mid(i + 1); } } /************************************************************** * * Private class declerations * **************************************************************/ class QDomImplementationPrivate { public: inline QDomImplementationPrivate() {} QDomImplementationPrivate* clone(); QAtomicInt ref; static QDomImplementation::InvalidDataPolicy invalidDataPolicy; }; class QDomNodePrivate { public: QDomNodePrivate(QDomDocumentPrivate*, QDomNodePrivate* parent = 0); QDomNodePrivate(QDomNodePrivate* n, bool deep); virtual ~QDomNodePrivate(); QString nodeName() const { return name; } QString nodeValue() const { return value; } virtual void setNodeValue(const QString& v) { value = v; } QDomDocumentPrivate* ownerDocument(); void setOwnerDocument(QDomDocumentPrivate* doc); virtual QDomNodePrivate* insertBefore(QDomNodePrivate* newChild, QDomNodePrivate* refChild); virtual QDomNodePrivate* insertAfter(QDomNodePrivate* newChild, QDomNodePrivate* refChild); virtual QDomNodePrivate* replaceChild(QDomNodePrivate* newChild, QDomNodePrivate* oldChild); virtual QDomNodePrivate* removeChild(QDomNodePrivate* oldChild); virtual QDomNodePrivate* appendChild(QDomNodePrivate* newChild); QDomNodePrivate* namedItem(const QString& name); virtual QDomNodePrivate* cloneNode(bool deep = true); virtual void normalize(); virtual void clear(); inline QDomNodePrivate* parent() const { return hasParent ? ownerNode : 0; } inline void setParent(QDomNodePrivate *p) { ownerNode = p; hasParent = true; } void setNoParent() { ownerNode = hasParent ? (QDomNodePrivate*)ownerDocument() : 0; hasParent = false; } // Dynamic cast bool isAttr() const { return nodeType() == QDomNode::AttributeNode; } bool isCDATASection() const { return nodeType() == QDomNode::CDATASectionNode; } bool isDocumentFragment() const { return nodeType() == QDomNode::DocumentFragmentNode; } bool isDocument() const { return nodeType() == QDomNode::DocumentNode; } bool isDocumentType() const { return nodeType() == QDomNode::DocumentTypeNode; } bool isElement() const { return nodeType() == QDomNode::ElementNode; } bool isEntityReference() const { return nodeType() == QDomNode::EntityReferenceNode; } bool isText() const { const QDomNode::NodeType nt = nodeType(); return (nt == QDomNode::TextNode) || (nt == QDomNode::CDATASectionNode); } bool isEntity() const { return nodeType() == QDomNode::EntityNode; } bool isNotation() const { return nodeType() == QDomNode::NotationNode; } bool isProcessingInstruction() const { return nodeType() == QDomNode::ProcessingInstructionNode; } bool isCharacterData() const { const QDomNode::NodeType nt = nodeType(); return (nt == QDomNode::CharacterDataNode) || (nt == QDomNode::TextNode) || (nt == QDomNode::CommentNode); } bool isComment() const { return nodeType() == QDomNode::CommentNode; } virtual QDomNode::NodeType nodeType() const { return QDomNode::BaseNode; } virtual void save(QTextStream&, int, int) const; void setLocation(int lineNumber, int columnNumber); // Variables QAtomicInt ref; QDomNodePrivate* prev; QDomNodePrivate* next; QDomNodePrivate* ownerNode; // either the node's parent or the node's owner document QDomNodePrivate* first; QDomNodePrivate* last; QString name; // this is the local name if prefix != null QString value; QString prefix; // set this only for ElementNode and AttributeNode QString namespaceURI; // set this only for ElementNode and AttributeNode bool createdWithDom1Interface : 1; bool hasParent : 1; int lineNumber; int columnNumber; }; class QDomNodeListPrivate { public: QDomNodeListPrivate(QDomNodePrivate*); QDomNodeListPrivate(QDomNodePrivate*, const QString& ); QDomNodeListPrivate(QDomNodePrivate*, const QString&, const QString& ); ~QDomNodeListPrivate(); bool operator== (const QDomNodeListPrivate&) const; bool operator!= (const QDomNodeListPrivate&) const; void createList(); QDomNodePrivate* item(int index); int length() const; QAtomicInt ref; /* This list contains the children of this node. */ QDomNodePrivate* node_impl; QString tagname; QString nsURI; QList list; long timestamp; }; class QDomNamedNodeMapPrivate { public: QDomNamedNodeMapPrivate(QDomNodePrivate*); ~QDomNamedNodeMapPrivate(); QDomNodePrivate* namedItem(const QString& name) const; QDomNodePrivate* namedItemNS(const QString& nsURI, const QString& localName) const; QDomNodePrivate* setNamedItem(QDomNodePrivate* arg); QDomNodePrivate* setNamedItemNS(QDomNodePrivate* arg); QDomNodePrivate* removeNamedItem(const QString& name); QDomNodePrivate* item(int index) const; int length() const; bool contains(const QString& name) const; bool containsNS(const QString& nsURI, const QString & localName) const; /** * Remove all children from the map. */ void clearMap(); bool isReadOnly() { return readonly; } void setReadOnly(bool r) { readonly = r; } bool isAppendToParent() { return appendToParent; } /** * If true, then the node will redirect insert/remove calls * to its parent by calling QDomNodePrivate::appendChild or removeChild. * In addition the map won't increase or decrease the reference count * of the nodes it contains. * * By default this value is false and the map will handle reference counting * by itself. */ void setAppendToParent(bool b) { appendToParent = b; } /** * Creates a copy of the map. It is a deep copy * that means that all children are cloned. */ QDomNamedNodeMapPrivate* clone(QDomNodePrivate* parent); // Variables QAtomicInt ref; QHash map; QDomNodePrivate* parent; bool readonly; bool appendToParent; }; class QDomDocumentTypePrivate : public QDomNodePrivate { public: QDomDocumentTypePrivate(QDomDocumentPrivate*, QDomNodePrivate* parent = 0); QDomDocumentTypePrivate(QDomDocumentTypePrivate* n, bool deep); ~QDomDocumentTypePrivate(); void init(); // Reimplemented from QDomNodePrivate QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; QDomNodePrivate* insertBefore(QDomNodePrivate* newChild, QDomNodePrivate* refChild) Q_DECL_OVERRIDE; QDomNodePrivate* insertAfter(QDomNodePrivate* newChild, QDomNodePrivate* refChild) Q_DECL_OVERRIDE; QDomNodePrivate* replaceChild(QDomNodePrivate* newChild, QDomNodePrivate* oldChild) Q_DECL_OVERRIDE; QDomNodePrivate* removeChild(QDomNodePrivate* oldChild) Q_DECL_OVERRIDE; QDomNodePrivate* appendChild(QDomNodePrivate* newChild) Q_DECL_OVERRIDE; QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::DocumentTypeNode; } void save(QTextStream& s, int, int) const Q_DECL_OVERRIDE; // Variables QDomNamedNodeMapPrivate* entities; QDomNamedNodeMapPrivate* notations; QString publicId; QString systemId; QString internalSubset; }; class QDomDocumentFragmentPrivate : public QDomNodePrivate { public: QDomDocumentFragmentPrivate(QDomDocumentPrivate*, QDomNodePrivate* parent = 0); QDomDocumentFragmentPrivate(QDomNodePrivate* n, bool deep); // Reimplemented from QDomNodePrivate virtual QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::DocumentFragmentNode; } }; class QDomCharacterDataPrivate : public QDomNodePrivate { public: QDomCharacterDataPrivate(QDomDocumentPrivate*, QDomNodePrivate* parent, const QString& data); QDomCharacterDataPrivate(QDomCharacterDataPrivate* n, bool deep); int dataLength() const; QString substringData(unsigned long offset, unsigned long count) const; void appendData(const QString& arg); void insertData(unsigned long offset, const QString& arg); void deleteData(unsigned long offset, unsigned long count); void replaceData(unsigned long offset, unsigned long count, const QString& arg); // Reimplemented from QDomNodePrivate QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::CharacterDataNode; } QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; }; class QDomTextPrivate : public QDomCharacterDataPrivate { public: QDomTextPrivate(QDomDocumentPrivate*, QDomNodePrivate* parent, const QString& val); QDomTextPrivate(QDomTextPrivate* n, bool deep); QDomTextPrivate* splitText(int offset); // Reimplemented from QDomNodePrivate QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::TextNode; } virtual void save(QTextStream& s, int, int) const Q_DECL_OVERRIDE; }; class QDomAttrPrivate : public QDomNodePrivate { public: QDomAttrPrivate(QDomDocumentPrivate*, QDomNodePrivate*, const QString& name); QDomAttrPrivate(QDomDocumentPrivate*, QDomNodePrivate*, const QString& nsURI, const QString& qName); QDomAttrPrivate(QDomAttrPrivate* n, bool deep); bool specified() const; // Reimplemented from QDomNodePrivate void setNodeValue(const QString& v) Q_DECL_OVERRIDE; QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::AttributeNode; } virtual void save(QTextStream& s, int, int) const Q_DECL_OVERRIDE; // Variables bool m_specified; }; class QDomElementPrivate : public QDomNodePrivate { public: QDomElementPrivate(QDomDocumentPrivate*, QDomNodePrivate* parent, const QString& name); QDomElementPrivate(QDomDocumentPrivate*, QDomNodePrivate* parent, const QString& nsURI, const QString& qName); QDomElementPrivate(QDomElementPrivate* n, bool deep); ~QDomElementPrivate(); QString attribute(const QString& name, const QString& defValue) const; QString attributeNS(const QString& nsURI, const QString& localName, const QString& defValue) const; void setAttribute(const QString& name, const QString& value); void setAttributeNS(const QString& nsURI, const QString& qName, const QString& newValue); void removeAttribute(const QString& name); QDomAttrPrivate* attributeNode(const QString& name); QDomAttrPrivate* attributeNodeNS(const QString& nsURI, const QString& localName); QDomAttrPrivate* setAttributeNode(QDomAttrPrivate* newAttr); QDomAttrPrivate* setAttributeNodeNS(QDomAttrPrivate* newAttr); QDomAttrPrivate* removeAttributeNode(QDomAttrPrivate* oldAttr); bool hasAttribute(const QString& name); bool hasAttributeNS(const QString& nsURI, const QString& localName); QString text(); // Reimplemented from QDomNodePrivate QDomNamedNodeMapPrivate* attributes() { return m_attr; } bool hasAttributes() { return (m_attr->length() > 0); } QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::ElementNode; } QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; virtual void save(QTextStream& s, int, int) const Q_DECL_OVERRIDE; // Variables QDomNamedNodeMapPrivate* m_attr; }; class QDomCommentPrivate : public QDomCharacterDataPrivate { public: QDomCommentPrivate(QDomDocumentPrivate*, QDomNodePrivate* parent, const QString& val); QDomCommentPrivate(QDomCommentPrivate* n, bool deep); // Reimplemented from QDomNodePrivate QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::CommentNode; } virtual void save(QTextStream& s, int, int) const Q_DECL_OVERRIDE; }; class QDomCDATASectionPrivate : public QDomTextPrivate { public: QDomCDATASectionPrivate(QDomDocumentPrivate*, QDomNodePrivate* parent, const QString& val); QDomCDATASectionPrivate(QDomCDATASectionPrivate* n, bool deep); // Reimplemented from QDomNodePrivate QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::CDATASectionNode; } virtual void save(QTextStream& s, int, int) const Q_DECL_OVERRIDE; }; class QDomNotationPrivate : public QDomNodePrivate { public: QDomNotationPrivate(QDomDocumentPrivate*, QDomNodePrivate* parent, const QString& name, const QString& pub, const QString& sys); QDomNotationPrivate(QDomNotationPrivate* n, bool deep); // Reimplemented from QDomNodePrivate QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::NotationNode; } virtual void save(QTextStream& s, int, int) const Q_DECL_OVERRIDE; // Variables QString m_sys; QString m_pub; }; class QDomEntityPrivate : public QDomNodePrivate { public: QDomEntityPrivate(QDomDocumentPrivate*, QDomNodePrivate* parent, const QString& name, const QString& pub, const QString& sys, const QString& notation); QDomEntityPrivate(QDomEntityPrivate* n, bool deep); // Reimplemented from QDomNodePrivate QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::EntityNode; } virtual void save(QTextStream& s, int, int) const Q_DECL_OVERRIDE; // Variables QString m_sys; QString m_pub; QString m_notationName; }; class QDomEntityReferencePrivate : public QDomNodePrivate { public: QDomEntityReferencePrivate(QDomDocumentPrivate*, QDomNodePrivate* parent, const QString& name); QDomEntityReferencePrivate(QDomNodePrivate* n, bool deep); // Reimplemented from QDomNodePrivate QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::EntityReferenceNode; } virtual void save(QTextStream& s, int, int) const Q_DECL_OVERRIDE; }; class QDomProcessingInstructionPrivate : public QDomNodePrivate { public: QDomProcessingInstructionPrivate(QDomDocumentPrivate*, QDomNodePrivate* parent, const QString& target, const QString& data); QDomProcessingInstructionPrivate(QDomProcessingInstructionPrivate* n, bool deep); // Reimplemented from QDomNodePrivate QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::ProcessingInstructionNode; } virtual void save(QTextStream& s, int, int) const Q_DECL_OVERRIDE; }; class QDomDocumentPrivate : public QDomNodePrivate { public: QDomDocumentPrivate(); QDomDocumentPrivate(const QString& name); QDomDocumentPrivate(QDomDocumentTypePrivate* dt); QDomDocumentPrivate(QDomDocumentPrivate* n, bool deep); ~QDomDocumentPrivate(); bool setContent(QXmlInputSource *source, bool namespaceProcessing, QString *errorMsg, int *errorLine, int *errorColumn); bool setContent(QXmlInputSource *source, QXmlReader *reader, QXmlSimpleReader *simpleReader, QString *errorMsg, int *errorLine, int *errorColumn); // Attributes QDomDocumentTypePrivate* doctype() { return type.data(); } QDomImplementationPrivate* implementation() { return impl.data(); } QDomElementPrivate* documentElement(); // Factories QDomElementPrivate* createElement(const QString& tagName); QDomElementPrivate* createElementNS(const QString& nsURI, const QString& qName); QDomDocumentFragmentPrivate* createDocumentFragment(); QDomTextPrivate* createTextNode(const QString& data); QDomCommentPrivate* createComment(const QString& data); QDomCDATASectionPrivate* createCDATASection(const QString& data); QDomProcessingInstructionPrivate* createProcessingInstruction(const QString& target, const QString& data); QDomAttrPrivate* createAttribute(const QString& name); QDomAttrPrivate* createAttributeNS(const QString& nsURI, const QString& qName); QDomEntityReferencePrivate* createEntityReference(const QString& name); QDomNodePrivate* importNode(QDomNodePrivate* importedNode, bool deep); // Reimplemented from QDomNodePrivate QDomNodePrivate* cloneNode(bool deep = true) Q_DECL_OVERRIDE; QDomNode::NodeType nodeType() const Q_DECL_OVERRIDE { return QDomNode::DocumentNode; } void clear() Q_DECL_OVERRIDE; // Variables QExplicitlySharedDataPointer impl; QExplicitlySharedDataPointer type; void saveDocument(QTextStream& stream, const int indent, QDomNode::EncodingPolicy encUsed) const; /* \internal Counter for the QDomNodeListPrivate timestamps. This is a cache optimization, that might in some cases be effective. The dilemma is that QDomNode::childNodes() returns a list, but the implementation stores the children in a linked list. Hence, in order to get the children out through childNodes(), a list must be populated each time, which is O(N). DOM has the requirement of node references being live, see DOM Core Level 3, 1.1.1 The DOM Structure Model, which means that changes to the underlying documents must be reflected in node lists. This mechanism, nodeListTime, is a caching optimization that reduces the amount of times the node list is rebuilt, by only doing so when the document actually changes. However, a change to anywhere in any document invalidate all lists, since no dependency tracking is done. It functions by that all modifying functions(insertBefore() and so on) increment the count; each QDomNodeListPrivate copies nodeListTime on construction, and compares its own value to nodeListTime in order to determine whether it needs to rebuild. This is reentrant. The nodeListTime may overflow, but that's ok since we check for equalness, not whether nodeListTime is smaller than the list's stored timestamp. */ long nodeListTime; }; /************************************************************** * * QDomHandler * **************************************************************/ class QDomHandler : public QXmlDefaultHandler { public: QDomHandler(QDomDocumentPrivate* d, QXmlSimpleReader *reader, bool namespaceProcessing); ~QDomHandler(); // content handler bool endDocument() Q_DECL_OVERRIDE; bool startElement(const QString& nsURI, const QString& localName, const QString& qName, const QXmlAttributes& atts) Q_DECL_OVERRIDE; bool endElement(const QString& nsURI, const QString& localName, const QString& qName) Q_DECL_OVERRIDE; bool characters(const QString& ch) Q_DECL_OVERRIDE; bool processingInstruction(const QString& target, const QString& data) Q_DECL_OVERRIDE; bool skippedEntity(const QString& name) Q_DECL_OVERRIDE; // error handler bool fatalError(const QXmlParseException& exception) Q_DECL_OVERRIDE; // lexical handler bool startCDATA() Q_DECL_OVERRIDE; bool endCDATA() Q_DECL_OVERRIDE; bool startEntity(const QString &) Q_DECL_OVERRIDE; bool endEntity(const QString &) Q_DECL_OVERRIDE; bool startDTD(const QString& name, const QString& publicId, const QString& systemId) Q_DECL_OVERRIDE; bool comment(const QString& ch) Q_DECL_OVERRIDE; // decl handler bool externalEntityDecl(const QString &name, const QString &publicId, const QString &systemId) Q_DECL_OVERRIDE ; // DTD handler bool notationDecl(const QString & name, const QString & publicId, const QString & systemId) Q_DECL_OVERRIDE; bool unparsedEntityDecl(const QString &name, const QString &publicId, const QString &systemId, const QString ¬ationName) Q_DECL_OVERRIDE ; void setDocumentLocator(QXmlLocator *locator) Q_DECL_OVERRIDE; QString errorMsg; int errorLine; int errorColumn; private: QDomDocumentPrivate *doc; QDomNodePrivate *node; QString entityName; bool cdata; bool nsProcessing; QXmlLocator *locator; QXmlSimpleReader *reader; }; /************************************************************** * * Functions for verifying legal data * **************************************************************/ QDomImplementation::InvalidDataPolicy QDomImplementationPrivate::invalidDataPolicy = QDomImplementation::AcceptInvalidChars; // [5] Name ::= (Letter | '_' | ':') (NameChar)* static QString fixedXmlName(const QString &_name, bool *ok, bool namespaces = false) { QString name, prefix; if (namespaces) qt_split_namespace(prefix, name, _name, true); else name = _name; if (name.isEmpty()) { *ok = false; return QString(); } if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::AcceptInvalidChars) { *ok = true; return _name; } QString result; bool firstChar = true; for (int i = 0; i < name.size(); ++i) { QChar c = name.at(i); if (firstChar) { if (QXmlUtils::isLetter(c) || c.unicode() == '_' || c.unicode() == ':') { result.append(c); firstChar = false; } else if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::ReturnNullNode) { *ok = false; return QString(); } } else { if (QXmlUtils::isNameChar(c)) result.append(c); else if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::ReturnNullNode) { *ok = false; return QString(); } } } if (result.isEmpty()) { *ok = false; return QString(); } *ok = true; if (namespaces && !prefix.isEmpty()) return prefix + QLatin1Char(':') + result; return result; } // [14] CharData ::= [^<&]* - ([^<&]* ']]>' [^<&]*) // '<', '&' and "]]>" will be escaped when writing static QString fixedCharData(const QString &data, bool *ok) { if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::AcceptInvalidChars) { *ok = true; return data; } QString result; for (int i = 0; i < data.size(); ++i) { QChar c = data.at(i); if (QXmlUtils::isChar(c)) { result.append(c); } else if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::ReturnNullNode) { *ok = false; return QString(); } } *ok = true; return result; } // [15] Comment ::= '' // can't escape "--", since entities are not recognised within comments static QString fixedComment(const QString &data, bool *ok) { if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::AcceptInvalidChars) { *ok = true; return data; } QString fixedData = fixedCharData(data, ok); if (!*ok) return QString(); for (;;) { int idx = fixedData.indexOf(QLatin1String("--")); if (idx == -1) break; if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::ReturnNullNode) { *ok = false; return QString(); } fixedData.remove(idx, 2); } *ok = true; return fixedData; } // [20] CData ::= (Char* - (Char* ']]>' Char*)) // can't escape "]]>", since entities are not recognised within comments static QString fixedCDataSection(const QString &data, bool *ok) { if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::AcceptInvalidChars) { *ok = true; return data; } QString fixedData = fixedCharData(data, ok); if (!*ok) return QString(); for (;;) { int idx = fixedData.indexOf(QLatin1String("]]>")); if (idx == -1) break; if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::ReturnNullNode) { *ok = false; return QString(); } fixedData.remove(idx, 3); } *ok = true; return fixedData; } // [16] PI ::= '' Char*)))? '?>' static QString fixedPIData(const QString &data, bool *ok) { if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::AcceptInvalidChars) { *ok = true; return data; } QString fixedData = fixedCharData(data, ok); if (!*ok) return QString(); for (;;) { int idx = fixedData.indexOf(QLatin1String("?>")); if (idx == -1) break; if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::ReturnNullNode) { *ok = false; return QString(); } fixedData.remove(idx, 2); } *ok = true; return fixedData; } // [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'" // The correct quote will be chosen when writing static QString fixedPubidLiteral(const QString &data, bool *ok) { if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::AcceptInvalidChars) { *ok = true; return data; } QString result; if(QXmlUtils::isPublicID(data)) result = data; else if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::ReturnNullNode) { *ok = false; return QString(); } if (result.indexOf(QLatin1Char('\'')) != -1 && result.indexOf(QLatin1Char('"')) != -1) { if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::ReturnNullNode) { *ok = false; return QString(); } else { result.remove(QLatin1Char('\'')); } } *ok = true; return result; } // [11] SystemLiteral ::= ('"' [^"]* '"') | ("'" [^']* "'") // The correct quote will be chosen when writing static QString fixedSystemLiteral(const QString &data, bool *ok) { if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::AcceptInvalidChars) { *ok = true; return data; } QString result = data; if (result.indexOf(QLatin1Char('\'')) != -1 && result.indexOf(QLatin1Char('"')) != -1) { if (QDomImplementationPrivate::invalidDataPolicy == QDomImplementation::ReturnNullNode) { *ok = false; return QString(); } else { result.remove(QLatin1Char('\'')); } } *ok = true; return result; } /************************************************************** * * QDomImplementationPrivate * **************************************************************/ QDomImplementationPrivate* QDomImplementationPrivate::clone() { return new QDomImplementationPrivate; } /************************************************************** * * QDomImplementation * **************************************************************/ /*! \class QDomImplementation \reentrant \brief The QDomImplementation class provides information about the features of the DOM implementation. \inmodule QtXml \ingroup xml-tools This class describes the features that are supported by the DOM implementation. Currently the XML subset of DOM Level 1 and DOM Level 2 Core are supported. Normally you will use the function QDomDocument::implementation() to get the implementation object. You can create a new document type with createDocumentType() and a new document with createDocument(). For further information about the Document Object Model see \l{http://www.w3.org/TR/REC-DOM-Level-1/}{Level 1} and \l{http://www.w3.org/TR/DOM-Level-2-Core/}{Level 2 Core}. For a more general introduction of the DOM implementation see the QDomDocument documentation. The QDom classes have a few issues of nonconformance with the XML specifications that cannot be fixed in Qt 4 without breaking backward compatibility. The Qt XML Patterns module and the QXmlStreamReader and QXmlStreamWriter classes have a higher degree of a conformance. \sa hasFeature() */ /*! Constructs a QDomImplementation object. */ QDomImplementation::QDomImplementation() { impl = 0; } /*! Constructs a copy of \a x. */ QDomImplementation::QDomImplementation(const QDomImplementation &x) { impl = x.impl; if (impl) impl->ref.ref(); } QDomImplementation::QDomImplementation(QDomImplementationPrivate *p) { // We want to be co-owners, so increase the reference count impl = p; if (impl) impl->ref.ref(); } /*! Assigns \a x to this DOM implementation. */ QDomImplementation& QDomImplementation::operator=(const QDomImplementation &x) { if (x.impl) x.impl->ref.ref(); if (impl && !impl->ref.deref()) delete impl; impl = x.impl; return *this; } /*! Returns \c true if \a x and this DOM implementation object were created from the same QDomDocument; otherwise returns \c false. */ bool QDomImplementation::operator==(const QDomImplementation &x) const { return (impl == x.impl); } /*! Returns \c true if \a x and this DOM implementation object were created from different QDomDocuments; otherwise returns \c false. */ bool QDomImplementation::operator!=(const QDomImplementation &x) const { return (impl != x.impl); } /*! Destroys the object and frees its resources. */ QDomImplementation::~QDomImplementation() { if (impl && !impl->ref.deref()) delete impl; } /*! The function returns \c true if QDom implements the requested \a version of a \a feature; otherwise returns \c false. The currently supported features and their versions: \table \header \li Feature \li Version \row \li XML \li 1.0 \endtable */ bool QDomImplementation::hasFeature(const QString& feature, const QString& version) const { if (feature == QLatin1String("XML")) { if (version.isEmpty() || version == QLatin1String("1.0")) { return true; } } // ### add DOM level 2 features return false; } /*! Creates a document type node for the name \a qName. \a publicId specifies the public identifier of the external subset. If you specify an empty string (QString()) as the \a publicId, this means that the document type has no public identifier. \a systemId specifies the system identifier of the external subset. If you specify an empty string as the \a systemId, this means that the document type has no system identifier. Since you cannot have a public identifier without a system identifier, the public identifier is set to an empty string if there is no system identifier. DOM level 2 does not support any other document type declaration features. The only way you can use a document type that was created this way, is in combination with the createDocument() function to create a QDomDocument with this document type. In the DOM specification, this is the only way to create a non-null document. For historical reasons, Qt also allows to create the document using the default empty constructor. The resulting document is null, but becomes non-null when a factory function, for example QDomDocument::createElement(), is called. The document also becomes non-null when setContent() is called. \sa createDocument() */ QDomDocumentType QDomImplementation::createDocumentType(const QString& qName, const QString& publicId, const QString& systemId) { bool ok; QString fixedName = fixedXmlName(qName, &ok, true); if (!ok) return QDomDocumentType(); QString fixedPublicId = fixedPubidLiteral(publicId, &ok); if (!ok) return QDomDocumentType(); QString fixedSystemId = fixedSystemLiteral(systemId, &ok); if (!ok) return QDomDocumentType(); QDomDocumentTypePrivate *dt = new QDomDocumentTypePrivate(0); dt->name = fixedName; if (systemId.isNull()) { dt->publicId.clear(); dt->systemId.clear(); } else { dt->publicId = fixedPublicId; dt->systemId = fixedSystemId; } dt->ref.deref(); return QDomDocumentType(dt); } /*! Creates a DOM document with the document type \a doctype. This function also adds a root element node with the qualified name \a qName and the namespace URI \a nsURI. */ QDomDocument QDomImplementation::createDocument(const QString& nsURI, const QString& qName, const QDomDocumentType& doctype) { QDomDocument doc(doctype); QDomElement root = doc.createElementNS(nsURI, qName); if (root.isNull()) return QDomDocument(); doc.appendChild(root); return doc; } /*! Returns \c false if the object was created by QDomDocument::implementation(); otherwise returns \c true. */ bool QDomImplementation::isNull() { return (impl == 0); } /*! \enum QDomImplementation::InvalidDataPolicy This enum specifies what should be done when a factory function in QDomDocument is called with invalid data. \value AcceptInvalidChars The data should be stored in the DOM object anyway. In this case the resulting XML document might not be well-formed. This is the default value and QDom's behavior in Qt < 4.1. \value DropInvalidChars The invalid characters should be removed from the data. \value ReturnNullNode The factory function should return a null node. \sa setInvalidDataPolicy(), invalidDataPolicy() */ /*! \enum QDomNode::EncodingPolicy \since 4.3 This enum specifies how QDomNode::save() determines what encoding to use when serializing. \value EncodingFromDocument The encoding is fetched from the document. \value EncodingFromTextStream The encoding is fetched from the QTextStream. \sa QDomNode::save() */ /*! \since 4.1 \nonreentrant Returns the invalid data policy, which specifies what should be done when a factory function in QDomDocument is passed invalid data. \sa setInvalidDataPolicy(), InvalidDataPolicy */ QDomImplementation::InvalidDataPolicy QDomImplementation::invalidDataPolicy() { return QDomImplementationPrivate::invalidDataPolicy; } /*! \since 4.1 \nonreentrant Sets the invalid data policy, which specifies what should be done when a factory function in QDomDocument is passed invalid data. The \a policy is set for all instances of QDomDocument which already exist and which will be created in the future. \snippet code/src_xml_dom_qdom.cpp 0 \sa invalidDataPolicy(), InvalidDataPolicy */ void QDomImplementation::setInvalidDataPolicy(InvalidDataPolicy policy) { QDomImplementationPrivate::invalidDataPolicy = policy; } /************************************************************** * * QDomNodeListPrivate * **************************************************************/ QDomNodeListPrivate::QDomNodeListPrivate(QDomNodePrivate *n_impl) : ref(1) { node_impl = n_impl; if (node_impl) node_impl->ref.ref(); timestamp = 0; } QDomNodeListPrivate::QDomNodeListPrivate(QDomNodePrivate *n_impl, const QString &name) : ref(1) { node_impl = n_impl; if (node_impl) node_impl->ref.ref(); tagname = name; timestamp = 0; } QDomNodeListPrivate::QDomNodeListPrivate(QDomNodePrivate *n_impl, const QString &_nsURI, const QString &localName) : ref(1) { node_impl = n_impl; if (node_impl) node_impl->ref.ref(); tagname = localName; nsURI = _nsURI; timestamp = 0; } QDomNodeListPrivate::~QDomNodeListPrivate() { if (node_impl && !node_impl->ref.deref()) delete node_impl; } bool QDomNodeListPrivate::operator==(const QDomNodeListPrivate &other) const { return (node_impl == other.node_impl) && (tagname == other.tagname); } bool QDomNodeListPrivate::operator!=(const QDomNodeListPrivate &other) const { return (node_impl != other.node_impl) || (tagname != other.tagname); } void QDomNodeListPrivate::createList() { if (!node_impl) return; const QDomDocumentPrivate *const doc = node_impl->ownerDocument(); if (doc && timestamp != doc->nodeListTime) timestamp = doc->nodeListTime; QDomNodePrivate* p = node_impl->first; list.clear(); if (tagname.isNull()) { while (p) { list.append(p); p = p->next; } } else if (nsURI.isNull()) { while (p && p != node_impl) { if (p->isElement() && p->nodeName() == tagname) { list.append(p); } if (p->first) p = p->first; else if (p->next) p = p->next; else { p = p->parent(); while (p && p != node_impl && !p->next) p = p->parent(); if (p && p != node_impl) p = p->next; } } } else { while (p && p != node_impl) { if (p->isElement() && p->name==tagname && p->namespaceURI==nsURI) { list.append(p); } if (p->first) p = p->first; else if (p->next) p = p->next; else { p = p->parent(); while (p && p != node_impl && !p->next) p = p->parent(); if (p && p != node_impl) p = p->next; } } } } QDomNodePrivate* QDomNodeListPrivate::item(int index) { if (!node_impl) return 0; const QDomDocumentPrivate *const doc = node_impl->ownerDocument(); if (!doc || timestamp != doc->nodeListTime) createList(); if (index >= list.size()) return 0; return list.at(index); } int QDomNodeListPrivate::length() const { if (!node_impl) return 0; const QDomDocumentPrivate *const doc = node_impl->ownerDocument(); if (!doc || timestamp != doc->nodeListTime) { QDomNodeListPrivate *that = const_cast(this); that->createList(); } return list.count(); } /************************************************************** * * QDomNodeList * **************************************************************/ /*! \class QDomNodeList \reentrant \brief The QDomNodeList class is a list of QDomNode objects. \inmodule QtXml \ingroup xml-tools Lists can be obtained by QDomDocument::elementsByTagName() and QDomNode::childNodes(). The Document Object Model (DOM) requires these lists to be "live": whenever you change the underlying document, the contents of the list will get updated. You can get a particular node from the list with item(). The number of items in the list is returned by length(). For further information about the Document Object Model see \l{http://www.w3.org/TR/REC-DOM-Level-1/}{Level 1} and \l{http://www.w3.org/TR/DOM-Level-2-Core/}{Level 2 Core}. For a more general introduction of the DOM implementation see the QDomDocument documentation. \sa QDomNode::childNodes(), QDomDocument::elementsByTagName() */ /*! Creates an empty node list. */ QDomNodeList::QDomNodeList() { impl = 0; } QDomNodeList::QDomNodeList(QDomNodeListPrivate* p) { impl = p; } /*! Constructs a copy of \a n. */ QDomNodeList::QDomNodeList(const QDomNodeList& n) { impl = n.impl; if (impl) impl->ref.ref(); } /*! Assigns \a n to this node list. */ QDomNodeList& QDomNodeList::operator=(const QDomNodeList &n) { if (n.impl) n.impl->ref.ref(); if (impl && !impl->ref.deref()) delete impl; impl = n.impl; return *this; } /*! Returns \c true if the node list \a n and this node list are equal; otherwise returns \c false. */ bool QDomNodeList::operator==(const QDomNodeList &n) const { if (impl == n.impl) return true; if (!impl || !n.impl) return false; return (*impl == *n.impl); } /*! Returns \c true the node list \a n and this node list are not equal; otherwise returns \c false. */ bool QDomNodeList::operator!=(const QDomNodeList &n) const { return !operator==(n); } /*! Destroys the object and frees its resources. */ QDomNodeList::~QDomNodeList() { if (impl && !impl->ref.deref()) delete impl; } /*! Returns the node at position \a index. If \a index is negative or if \a index >= length() then a null node is returned (i.e. a node for which QDomNode::isNull() returns true). \sa length() */ QDomNode QDomNodeList::item(int index) const { if (!impl) return QDomNode(); return QDomNode(impl->item(index)); } /*! Returns the number of nodes in the list. */ int QDomNodeList::length() const { if (!impl) return 0; return impl->length(); } /*! \fn bool QDomNodeList::isEmpty() const Returns \c true if the list contains no items; otherwise returns \c false. This function is provided for Qt API consistency. */ /*! \fn int QDomNodeList::count() const This function is provided for Qt API consistency. It is equivalent to length(). */ /*! \fn int QDomNodeList::size() const This function is provided for Qt API consistency. It is equivalent to length(). */ /*! \fn QDomNode QDomNodeList::at(int index) const This function is provided for Qt API consistency. It is equivalent to item(). If \a index is negative or if \a index >= length() then a null node is returned (i.e. a node for which QDomNode::isNull() returns true). */ /************************************************************** * * QDomNodePrivate * **************************************************************/ inline void QDomNodePrivate::setOwnerDocument(QDomDocumentPrivate *doc) { ownerNode = doc; hasParent = false; } QDomNodePrivate::QDomNodePrivate(QDomDocumentPrivate *doc, QDomNodePrivate *par) : ref(1) { if (par) setParent(par); else setOwnerDocument(doc); prev = 0; next = 0; first = 0; last = 0; createdWithDom1Interface = true; lineNumber = -1; columnNumber = -1; } QDomNodePrivate::QDomNodePrivate(QDomNodePrivate *n, bool deep) : ref(1) { setOwnerDocument(n->ownerDocument()); prev = 0; next = 0; first = 0; last = 0; name = n->name; value = n->value; prefix = n->prefix; namespaceURI = n->namespaceURI; createdWithDom1Interface = n->createdWithDom1Interface; lineNumber = -1; columnNumber = -1; if (!deep) return; for (QDomNodePrivate* x = n->first; x; x = x->next) appendChild(x->cloneNode(true)); } QDomNodePrivate::~QDomNodePrivate() { QDomNodePrivate* p = first; QDomNodePrivate* n; while (p) { n = p->next; if (!p->ref.deref()) delete p; else p->setNoParent(); p = n; } first = 0; last = 0; } void QDomNodePrivate::clear() { QDomNodePrivate* p = first; QDomNodePrivate* n; while (p) { n = p->next; if (!p->ref.deref()) delete p; p = n; } first = 0; last = 0; } QDomNodePrivate* QDomNodePrivate::namedItem(const QString &n) { QDomNodePrivate* p = first; while (p) { if (p->nodeName() == n) return p; p = p->next; } return 0; } QDomNodePrivate* QDomNodePrivate::insertBefore(QDomNodePrivate* newChild, QDomNodePrivate* refChild) { // Error check if (!newChild) return 0; // Error check if (newChild == refChild) return 0; // Error check if (refChild && refChild->parent() != this) return 0; // "mark lists as dirty" QDomDocumentPrivate *const doc = ownerDocument(); if(doc) doc->nodeListTime++; // Special handling for inserting a fragment. We just insert // all elements of the fragment instead of the fragment itself. if (newChild->isDocumentFragment()) { // Fragment is empty ? if (newChild->first == 0) return newChild; // New parent QDomNodePrivate* n = newChild->first; while (n) { n->setParent(this); n = n->next; } // Insert at the beginning ? if (!refChild || refChild->prev == 0) { if (first) first->prev = newChild->last; newChild->last->next = first; if (!last) last = newChild->last; first = newChild->first; } else { // Insert in the middle newChild->last->next = refChild; newChild->first->prev = refChild->prev; refChild->prev->next = newChild->first; refChild->prev = newChild->last; } // No need to increase the reference since QDomDocumentFragment // does not decrease the reference. // Remove the nodes from the fragment newChild->first = 0; newChild->last = 0; return newChild; } // No more errors can occur now, so we take // ownership of the node. newChild->ref.ref(); if (newChild->parent()) newChild->parent()->removeChild(newChild); newChild->setParent(this); if (!refChild) { if (first) first->prev = newChild; newChild->next = first; if (!last) last = newChild; first = newChild; return newChild; } if (refChild->prev == 0) { if (first) first->prev = newChild; newChild->next = first; if (!last) last = newChild; first = newChild; return newChild; } newChild->next = refChild; newChild->prev = refChild->prev; refChild->prev->next = newChild; refChild->prev = newChild; return newChild; } QDomNodePrivate* QDomNodePrivate::insertAfter(QDomNodePrivate* newChild, QDomNodePrivate* refChild) { // Error check if (!newChild) return 0; // Error check if (newChild == refChild) return 0; // Error check if (refChild && refChild->parent() != this) return 0; // "mark lists as dirty" QDomDocumentPrivate *const doc = ownerDocument(); if(doc) doc->nodeListTime++; // Special handling for inserting a fragment. We just insert // all elements of the fragment instead of the fragment itself. if (newChild->isDocumentFragment()) { // Fragment is empty ? if (newChild->first == 0) return newChild; // New parent QDomNodePrivate* n = newChild->first; while (n) { n->setParent(this); n = n->next; } // Insert at the end if (!refChild || refChild->next == 0) { if (last) last->next = newChild->first; newChild->first->prev = last; if (!first) first = newChild->first; last = newChild->last; } else { // Insert in the middle newChild->first->prev = refChild; newChild->last->next = refChild->next; refChild->next->prev = newChild->last; refChild->next = newChild->first; } // No need to increase the reference since QDomDocumentFragment // does not decrease the reference. // Remove the nodes from the fragment newChild->first = 0; newChild->last = 0; return newChild; } // Release new node from its current parent if (newChild->parent()) newChild->parent()->removeChild(newChild); // No more errors can occur now, so we take // ownership of the node newChild->ref.ref(); newChild->setParent(this); // Insert at the end if (!refChild) { if (last) last->next = newChild; newChild->prev = last; if (!first) first = newChild; last = newChild; return newChild; } if (refChild->next == 0) { if (last) last->next = newChild; newChild->prev = last; if (!first) first = newChild; last = newChild; return newChild; } newChild->prev = refChild; newChild->next = refChild->next; refChild->next->prev = newChild; refChild->next = newChild; return newChild; } QDomNodePrivate* QDomNodePrivate::replaceChild(QDomNodePrivate* newChild, QDomNodePrivate* oldChild) { if (!newChild || !oldChild) return 0; if (oldChild->parent() != this) return 0; if (newChild == oldChild) return 0; // mark lists as dirty QDomDocumentPrivate *const doc = ownerDocument(); if(doc) doc->nodeListTime++; // Special handling for inserting a fragment. We just insert // all elements of the fragment instead of the fragment itself. if (newChild->isDocumentFragment()) { // Fragment is empty ? if (newChild->first == 0) return newChild; // New parent QDomNodePrivate* n = newChild->first; while (n) { n->setParent(this); n = n->next; } if (oldChild->next) oldChild->next->prev = newChild->last; if (oldChild->prev) oldChild->prev->next = newChild->first; newChild->last->next = oldChild->next; newChild->first->prev = oldChild->prev; if (first == oldChild) first = newChild->first; if (last == oldChild) last = newChild->last; oldChild->setNoParent(); oldChild->next = 0; oldChild->prev = 0; // No need to increase the reference since QDomDocumentFragment // does not decrease the reference. // Remove the nodes from the fragment newChild->first = 0; newChild->last = 0; // We are no longer interested in the old node if (oldChild) oldChild->ref.deref(); return oldChild; } // No more errors can occur now, so we take // ownership of the node newChild->ref.ref(); // Release new node from its current parent if (newChild->parent()) newChild->parent()->removeChild(newChild); newChild->setParent(this); if (oldChild->next) oldChild->next->prev = newChild; if (oldChild->prev) oldChild->prev->next = newChild; newChild->next = oldChild->next; newChild->prev = oldChild->prev; if (first == oldChild) first = newChild; if (last == oldChild) last = newChild; oldChild->setNoParent(); oldChild->next = 0; oldChild->prev = 0; // We are no longer interested in the old node if (oldChild) oldChild->ref.deref(); return oldChild; } QDomNodePrivate* QDomNodePrivate::removeChild(QDomNodePrivate* oldChild) { // Error check if (oldChild->parent() != this) return 0; // "mark lists as dirty" QDomDocumentPrivate *const doc = ownerDocument(); if(doc) doc->nodeListTime++; // Perhaps oldChild was just created with "createElement" or that. In this case // its parent is QDomDocument but it is not part of the documents child list. if (oldChild->next == 0 && oldChild->prev == 0 && first != oldChild) return 0; if (oldChild->next) oldChild->next->prev = oldChild->prev; if (oldChild->prev) oldChild->prev->next = oldChild->next; if (last == oldChild) last = oldChild->prev; if (first == oldChild) first = oldChild->next; oldChild->setNoParent(); oldChild->next = 0; oldChild->prev = 0; // We are no longer interested in the old node oldChild->ref.deref(); return oldChild; } QDomNodePrivate* QDomNodePrivate::appendChild(QDomNodePrivate* newChild) { // No reference manipulation needed. Done in insertAfter. return insertAfter(newChild, 0); } QDomDocumentPrivate* QDomNodePrivate::ownerDocument() { QDomNodePrivate* p = this; while (p && !p->isDocument()) { if (!p->hasParent) return (QDomDocumentPrivate*)p->ownerNode; p = p->parent(); } return static_cast(p); } QDomNodePrivate* QDomNodePrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomNodePrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } static void qNormalizeNode(QDomNodePrivate* n) { QDomNodePrivate* p = n->first; QDomTextPrivate* t = 0; while (p) { if (p->isText()) { if (t) { QDomNodePrivate* tmp = p->next; t->appendData(p->nodeValue()); n->removeChild(p); p = tmp; } else { t = (QDomTextPrivate*)p; p = p->next; } } else { p = p->next; t = 0; } } } void QDomNodePrivate::normalize() { // ### This one has moved from QDomElementPrivate to this position. It is // not tested. qNormalizeNode(this); } /*! \internal \a depth is used for indentation, it seems. */ void QDomNodePrivate::save(QTextStream& s, int depth, int indent) const { const QDomNodePrivate* n = first; while (n) { n->save(s, depth, indent); n = n->next; } } void QDomNodePrivate::setLocation(int lineNumber, int columnNumber) { this->lineNumber = lineNumber; this->columnNumber = columnNumber; } /************************************************************** * * QDomNode * **************************************************************/ #define IMPL ((QDomNodePrivate*)impl) /*! \class QDomNode \reentrant \brief The QDomNode class is the base class for all the nodes in a DOM tree. \inmodule QtXml \ingroup xml-tools Many functions in the DOM return a QDomNode. You can find out the type of a node using isAttr(), isCDATASection(), isDocumentFragment(), isDocument(), isDocumentType(), isElement(), isEntityReference(), isText(), isEntity(), isNotation(), isProcessingInstruction(), isCharacterData() and isComment(). A QDomNode can be converted into one of its subclasses using toAttr(), toCDATASection(), toDocumentFragment(), toDocument(), toDocumentType(), toElement(), toEntityReference(), toText(), toEntity(), toNotation(), toProcessingInstruction(), toCharacterData() or toComment(). You can convert a node to a null node with clear(). Copies of the QDomNode class share their data using explicit sharing. This means that modifying one node will change all copies. This is especially useful in combination with functions which return a QDomNode, e.g. firstChild(). You can make an independent (deep) copy of the node with cloneNode(). A QDomNode can be null, much like a null pointer. Creating a copy of a null node results in another null node. It is not possible to modify a null node, but it is possible to assign another, possibly non-null node to it. In this case, the copy of the null node will remain null. You can check if a QDomNode is null by calling isNull(). The empty constructor of a QDomNode (or any of the derived classes) creates a null node. Nodes are inserted with insertBefore(), insertAfter() or appendChild(). You can replace one node with another using replaceChild() and remove a node with removeChild(). To traverse nodes use firstChild() to get a node's first child (if any), and nextSibling() to traverse. QDomNode also provides lastChild(), previousSibling() and parentNode(). To find the first child node with a particular node name use namedItem(). To find out if a node has children use hasChildNodes() and to get a list of all of a node's children use childNodes(). The node's name and value (the meaning of which varies depending on its type) is returned by nodeName() and nodeValue() respectively. The node's type is returned by nodeType(). The node's value can be set with setNodeValue(). The document to which the node belongs is returned by ownerDocument(). Adjacent QDomText nodes can be merged into a single node with normalize(). \l QDomElement nodes have attributes which can be retrieved with attributes(). QDomElement and QDomAttr nodes can have namespaces which can be retrieved with namespaceURI(). Their local name is retrieved with localName(), and their prefix with prefix(). The prefix can be set with setPrefix(). You can write the XML representation of the node to a text stream with save(). The following example looks for the first element in an XML document and prints the names of all the elements that are its direct children. \snippet code/src_xml_dom_qdom.cpp 1 For further information about the Document Object Model see \l{W3C DOM Level 1}{Level 1} and \l{W3C DOM Level 2}{Level 2 Core}. For a more general introduction of the DOM implementation see the QDomDocument documentation. */ /*! Constructs a \l{isNull()}{null} node. */ QDomNode::QDomNode() { impl = 0; } /*! Constructs a copy of \a n. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomNode::QDomNode(const QDomNode &n) { impl = n.impl; if (impl) impl->ref.ref(); } /*! \internal Constructs a new node for the data \a n. */ QDomNode::QDomNode(QDomNodePrivate *n) { impl = n; if (impl) impl->ref.ref(); } /*! Assigns a copy of \a n to this DOM node. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomNode& QDomNode::operator=(const QDomNode &n) { if (n.impl) n.impl->ref.ref(); if (impl && !impl->ref.deref()) delete impl; impl = n.impl; return *this; } /*! Returns \c true if \a n and this DOM node are equal; otherwise returns \c false. Any instance of QDomNode acts as a reference to an underlying data structure in QDomDocument. The test for equality checks if the two references point to the same underlying node. For example: \snippet code/src_xml_dom_qdom.cpp 2 The two nodes (QDomElement is a QDomNode subclass) both refer to the document's root element, and \c {element1 == element2} will return true. On the other hand: \snippet code/src_xml_dom_qdom.cpp 3 Even though both nodes are empty elements carrying the same name, \c {element3 == element4} will return false because they refer to two different nodes in the underlying data structure. */ bool QDomNode::operator== (const QDomNode& n) const { return (impl == n.impl); } /*! Returns \c true if \a n and this DOM node are not equal; otherwise returns \c false. */ bool QDomNode::operator!= (const QDomNode& n) const { return (impl != n.impl); } /*! Destroys the object and frees its resources. */ QDomNode::~QDomNode() { if (impl && !impl->ref.deref()) delete impl; } /*! Returns the name of the node. The meaning of the name depends on the subclass: \table \header \li Name \li Meaning \row \li QDomAttr \li The name of the attribute \row \li QDomCDATASection \li The string "#cdata-section" \row \li QDomComment \li The string "#comment" \row \li QDomDocument \li The string "#document" \row \li QDomDocumentFragment \li The string "#document-fragment" \row \li QDomDocumentType \li The name of the document type \row \li QDomElement \li The tag name \row \li QDomEntity \li The name of the entity \row \li QDomEntityReference \li The name of the referenced entity \row \li QDomNotation \li The name of the notation \row \li QDomProcessingInstruction \li The target of the processing instruction \row \li QDomText \li The string "#text" \endtable \b{Note:} This function does not take the presence of namespaces into account when processing the names of element and attribute nodes. As a result, the returned name can contain any namespace prefix that may be present. To obtain the node name of an element or attribute, use localName(); to obtain the namespace prefix, use namespaceURI(). \sa nodeValue() */ QString QDomNode::nodeName() const { if (!impl) return QString(); if (!IMPL->prefix.isEmpty()) return IMPL->prefix + QLatin1Char(':') + IMPL->name; return IMPL->name; } /*! Returns the value of the node. The meaning of the value depends on the subclass: \table \header \li Name \li Meaning \row \li QDomAttr \li The attribute value \row \li QDomCDATASection \li The content of the CDATA section \row \li QDomComment \li The comment \row \li QDomProcessingInstruction \li The data of the processing instruction \row \li QDomText \li The text \endtable All the other subclasses do not have a node value and will return an empty string. \sa setNodeValue(), nodeName() */ QString QDomNode::nodeValue() const { if (!impl) return QString(); return IMPL->value; } /*! Sets the node's value to \a v. \sa nodeValue() */ void QDomNode::setNodeValue(const QString& v) { if (!impl) return; IMPL->setNodeValue(v); } /*! \enum QDomNode::NodeType This enum defines the type of the node: \value ElementNode \value AttributeNode \value TextNode \value CDATASectionNode \value EntityReferenceNode \value EntityNode \value ProcessingInstructionNode \value CommentNode \value DocumentNode \value DocumentTypeNode \value DocumentFragmentNode \value NotationNode \value BaseNode A QDomNode object, i.e. not a QDomNode subclass. \value CharacterDataNode */ /*! Returns the type of the node. \sa toAttr(), toCDATASection(), toDocumentFragment(), toDocument(), toDocumentType(), toElement(), toEntityReference(), toText(), toEntity(), toNotation(), toProcessingInstruction(), toCharacterData(), toComment() */ QDomNode::NodeType QDomNode::nodeType() const { if (!impl) return QDomNode::BaseNode; return IMPL->nodeType(); } /*! Returns the parent node. If this node has no parent, a null node is returned (i.e. a node for which isNull() returns \c true). */ QDomNode QDomNode::parentNode() const { if (!impl) return QDomNode(); return QDomNode(IMPL->parent()); } /*! Returns a list of all direct child nodes. Most often you will call this function on a QDomElement object. For example, if the XML document looks like this: \snippet code/src_xml_dom_qdom.cpp 4 Then the list of child nodes for the "body"-element will contain the node created by the <h1> tag and the node created by the <p> tag. The nodes in the list are not copied; so changing the nodes in the list will also change the children of this node. \sa firstChild(), lastChild() */ QDomNodeList QDomNode::childNodes() const { if (!impl) return QDomNodeList(); return QDomNodeList(new QDomNodeListPrivate(impl)); } /*! Returns the first child of the node. If there is no child node, a \l{isNull()}{null node} is returned. Changing the returned node will also change the node in the document tree. \sa lastChild(), childNodes() */ QDomNode QDomNode::firstChild() const { if (!impl) return QDomNode(); return QDomNode(IMPL->first); } /*! Returns the last child of the node. If there is no child node, a \l{isNull()}{null node} is returned. Changing the returned node will also change the node in the document tree. \sa firstChild(), childNodes() */ QDomNode QDomNode::lastChild() const { if (!impl) return QDomNode(); return QDomNode(IMPL->last); } /*! Returns the previous sibling in the document tree. Changing the returned node will also change the node in the document tree. For example, if you have XML like this: \snippet code/src_xml_dom_qdom.cpp 5 and this QDomNode represents the <p> tag, previousSibling() will return the node representing the <h1> tag. \sa nextSibling() */ QDomNode QDomNode::previousSibling() const { if (!impl) return QDomNode(); return QDomNode(IMPL->prev); } /*! Returns the next sibling in the document tree. Changing the returned node will also change the node in the document tree. If you have XML like this: \snippet code/src_xml_dom_qdom.cpp 6 and this QDomNode represents the

tag, nextSibling() will return the node representing the

tag. \sa previousSibling() */ QDomNode QDomNode::nextSibling() const { if (!impl) return QDomNode(); return QDomNode(IMPL->next); } // ###### don't think this is part of the DOM and /*! Returns a named node map of all attributes. Attributes are only provided for \l{QDomElement}s. Changing the attributes in the map will also change the attributes of this QDomNode. */ QDomNamedNodeMap QDomNode::attributes() const { if (!impl || !impl->isElement()) return QDomNamedNodeMap(); return QDomNamedNodeMap(static_cast(impl)->attributes()); } /*! Returns the document to which this node belongs. */ QDomDocument QDomNode::ownerDocument() const { if (!impl) return QDomDocument(); return QDomDocument(IMPL->ownerDocument()); } /*! Creates a deep (not shallow) copy of the QDomNode. If \a deep is true, then the cloning is done recursively which means that all the node's children are deep copied too. If \a deep is false only the node itself is copied and the copy will have no child nodes. */ QDomNode QDomNode::cloneNode(bool deep) const { if (!impl) return QDomNode(); return QDomNode(IMPL->cloneNode(deep)); } /*! Calling normalize() on an element converts all its children into a standard form. This means that adjacent QDomText objects will be merged into a single text object (QDomCDATASection nodes are not merged). */ void QDomNode::normalize() { if (!impl) return; IMPL->normalize(); } /*! Returns \c true if the DOM implementation implements the feature \a feature and this feature is supported by this node in the version \a version; otherwise returns \c false. \sa QDomImplementation::hasFeature() */ bool QDomNode::isSupported(const QString& feature, const QString& version) const { QDomImplementation i; return i.hasFeature(feature, version); } /*! Returns the namespace URI of this node or an empty string if the node has no namespace URI. Only nodes of type \l{QDomNode::NodeType}{ElementNode} or \l{QDomNode::NodeType}{AttributeNode} can have namespaces. A namespace URI must be specified at creation time and cannot be changed later. \sa prefix(), localName(), QDomDocument::createElementNS(), QDomDocument::createAttributeNS() */ QString QDomNode::namespaceURI() const { if (!impl) return QString(); return IMPL->namespaceURI; } /*! Returns the namespace prefix of the node or an empty string if the node has no namespace prefix. Only nodes of type \l{QDomNode::NodeType}{ElementNode} or \l{QDomNode::NodeType}{AttributeNode} can have namespaces. A namespace prefix must be specified at creation time. If a node was created with a namespace prefix, you can change it later with setPrefix(). If you create an element or attribute with QDomDocument::createElement() or QDomDocument::createAttribute(), the prefix will be an empty string. If you use QDomDocument::createElementNS() or QDomDocument::createAttributeNS() instead, the prefix will not be an empty string; but it might be an empty string if the name does not have a prefix. \sa setPrefix(), localName(), namespaceURI(), QDomDocument::createElementNS(), QDomDocument::createAttributeNS() */ QString QDomNode::prefix() const { if (!impl) return QString(); return IMPL->prefix; } /*! If the node has a namespace prefix, this function changes the namespace prefix of the node to \a pre. Otherwise this function does nothing. Only nodes of type \l{QDomNode::NodeType}{ElementNode} or \l{QDomNode::NodeType}{AttributeNode} can have namespaces. A namespace prefix must have be specified at creation time; it is not possible to add a namespace prefix afterwards. \sa prefix(), localName(), namespaceURI(), QDomDocument::createElementNS(), QDomDocument::createAttributeNS() */ void QDomNode::setPrefix(const QString& pre) { if (!impl || IMPL->prefix.isNull()) return; if (isAttr() || isElement()) IMPL->prefix = pre; } /*! If the node uses namespaces, this function returns the local name of the node; otherwise it returns an empty string. Only nodes of type \l{QDomNode::NodeType}{ElementNode} or \l{QDomNode::NodeType}{AttributeNode} can have namespaces. A namespace must have been specified at creation time; it is not possible to add a namespace afterwards. \sa prefix(), namespaceURI(), QDomDocument::createElementNS(), QDomDocument::createAttributeNS() */ QString QDomNode::localName() const { if (!impl || IMPL->createdWithDom1Interface) return QString(); return IMPL->name; } /*! Returns \c true if the node has attributes; otherwise returns \c false. \sa attributes() */ bool QDomNode::hasAttributes() const { if (!impl || !impl->isElement()) return false; return static_cast(impl)->hasAttributes(); } /*! Inserts the node \a newChild before the child node \a refChild. \a refChild must be a direct child of this node. If \a refChild is \l{isNull()}{null} then \a newChild is inserted as the node's first child. If \a newChild is the child of another node, it is reparented to this node. If \a newChild is a child of this node, then its position in the list of children is changed. If \a newChild is a QDomDocumentFragment, then the children of the fragment are removed from the fragment and inserted before \a refChild. Returns a new reference to \a newChild on success or a \l{isNull()}{null node} on failure. The DOM specification disallow inserting attribute nodes, but due to historical reasons QDom accept them nevertheless. \sa insertAfter(), replaceChild(), removeChild(), appendChild() */ QDomNode QDomNode::insertBefore(const QDomNode& newChild, const QDomNode& refChild) { if (!impl) return QDomNode(); return QDomNode(IMPL->insertBefore(newChild.impl, refChild.impl)); } /*! Inserts the node \a newChild after the child node \a refChild. \a refChild must be a direct child of this node. If \a refChild is \l{isNull()}{null} then \a newChild is appended as this node's last child. If \a newChild is the child of another node, it is reparented to this node. If \a newChild is a child of this node, then its position in the list of children is changed. If \a newChild is a QDomDocumentFragment, then the children of the fragment are removed from the fragment and inserted after \a refChild. Returns a new reference to \a newChild on success or a \l{isNull()}{null node} on failure. The DOM specification disallow inserting attribute nodes, but due to historical reasons QDom accept them nevertheless. \sa insertBefore(), replaceChild(), removeChild(), appendChild() */ QDomNode QDomNode::insertAfter(const QDomNode& newChild, const QDomNode& refChild) { if (!impl) return QDomNode(); return QDomNode(IMPL->insertAfter(newChild.impl, refChild.impl)); } /*! Replaces \a oldChild with \a newChild. \a oldChild must be a direct child of this node. If \a newChild is the child of another node, it is reparented to this node. If \a newChild is a child of this node, then its position in the list of children is changed. If \a newChild is a QDomDocumentFragment, then \a oldChild is replaced by all of the children of the fragment. Returns a new reference to \a oldChild on success or a \l{isNull()}{null node} an failure. \sa insertBefore(), insertAfter(), removeChild(), appendChild() */ QDomNode QDomNode::replaceChild(const QDomNode& newChild, const QDomNode& oldChild) { if (!impl || !newChild.impl || !oldChild.impl) return QDomNode(); return QDomNode(IMPL->replaceChild(newChild.impl, oldChild.impl)); } /*! Removes \a oldChild from the list of children. \a oldChild must be a direct child of this node. Returns a new reference to \a oldChild on success or a \l{isNull()}{null node} on failure. \sa insertBefore(), insertAfter(), replaceChild(), appendChild() */ QDomNode QDomNode::removeChild(const QDomNode& oldChild) { if (!impl) return QDomNode(); if (oldChild.isNull()) return QDomNode(); return QDomNode(IMPL->removeChild(oldChild.impl)); } /*! Appends \a newChild as the node's last child. If \a newChild is the child of another node, it is reparented to this node. If \a newChild is a child of this node, then its position in the list of children is changed. If \a newChild is a QDomDocumentFragment, then the children of the fragment are removed from the fragment and appended. If \a newChild is a QDomElement and this node is a QDomDocument that already has an element node as a child, \a newChild is not added as a child and a null node is returned. Returns a new reference to \a newChild on success or a \l{isNull()}{null node} on failure. Calling this function on a null node(created, for example, with the default constructor) does nothing and returns a \l{isNull()}{null node}. The DOM specification disallow inserting attribute nodes, but for historical reasons, QDom accepts them anyway. \sa insertBefore(), insertAfter(), replaceChild(), removeChild() */ QDomNode QDomNode::appendChild(const QDomNode& newChild) { if (!impl) { qWarning("Calling appendChild() on a null node does nothing."); return QDomNode(); } return QDomNode(IMPL->appendChild(newChild.impl)); } /*! Returns \c true if the node has one or more children; otherwise returns \c false. */ bool QDomNode::hasChildNodes() const { if (!impl) return false; return IMPL->first != 0; } /*! Returns \c true if this node is null (i.e. if it has no type or contents); otherwise returns \c false. */ bool QDomNode::isNull() const { return (impl == 0); } /*! Converts the node into a null node; if it was not a null node before, its type and contents are deleted. \sa isNull() */ void QDomNode::clear() { if (impl && !impl->ref.deref()) delete impl; impl = 0; } /*! Returns the first direct child node for which nodeName() equals \a name. If no such direct child exists, a \l{isNull()}{null node} is returned. \sa nodeName() */ QDomNode QDomNode::namedItem(const QString& name) const { if (!impl) return QDomNode(); return QDomNode(impl->namedItem(name)); } /*! Writes the XML representation of the node and all its children to the stream \a stream. This function uses \a indent as the amount of space to indent the node. If the document contains invalid XML characters or characters that cannot be encoded in the given encoding, the result and behavior is undefined. If \a encodingPolicy is QDomNode::EncodingFromDocument and this node is a document node, the encoding of text stream \a stream's encoding is set by treating a processing instruction by name "xml" as an XML declaration, if one exists, and otherwise defaults to UTF-8. XML declarations are not processing instructions, but this behavior exists for historical reasons. If this node is not a document node, the text stream's encoding is used. If \a encodingPolicy is EncodingFromTextStream and this node is a document node, this function behaves as save(QTextStream &str, int indent) with the exception that the encoding specified in the text stream \a stream is used. If the document contains invalid XML characters or characters that cannot be encoded in the given encoding, the result and behavior is undefined. \since 4.2 */ void QDomNode::save(QTextStream& stream, int indent, EncodingPolicy encodingPolicy) const { if (!impl) return; if(isDocument()) static_cast(impl)->saveDocument(stream, indent, encodingPolicy); else IMPL->save(stream, 1, indent); } /*! \relates QDomNode Writes the XML representation of the node \a node and all its children to the stream \a str. */ QTextStream& operator<<(QTextStream& str, const QDomNode& node) { node.save(str, 1); return str; } /*! Returns \c true if the node is an attribute; otherwise returns \c false. If this function returns \c true, it does not imply that this object is a QDomAttribute; you can get the QDomAttribute with toAttribute(). \sa toAttr() */ bool QDomNode::isAttr() const { if(impl) return impl->isAttr(); return false; } /*! Returns \c true if the node is a CDATA section; otherwise returns false. If this function returns \c true, it does not imply that this object is a QDomCDATASection; you can get the QDomCDATASection with toCDATASection(). \sa toCDATASection() */ bool QDomNode::isCDATASection() const { if(impl) return impl->isCDATASection(); return false; } /*! Returns \c true if the node is a document fragment; otherwise returns false. If this function returns \c true, it does not imply that this object is a QDomDocumentFragment; you can get the QDomDocumentFragment with toDocumentFragment(). \sa toDocumentFragment() */ bool QDomNode::isDocumentFragment() const { if(impl) return impl->isDocumentFragment(); return false; } /*! Returns \c true if the node is a document; otherwise returns \c false. If this function returns \c true, it does not imply that this object is a QDomDocument; you can get the QDomDocument with toDocument(). \sa toDocument() */ bool QDomNode::isDocument() const { if(impl) return impl->isDocument(); return false; } /*! Returns \c true if the node is a document type; otherwise returns false. If this function returns \c true, it does not imply that this object is a QDomDocumentType; you can get the QDomDocumentType with toDocumentType(). \sa toDocumentType() */ bool QDomNode::isDocumentType() const { if(impl) return impl->isDocumentType(); return false; } /*! Returns \c true if the node is an element; otherwise returns \c false. If this function returns \c true, it does not imply that this object is a QDomElement; you can get the QDomElement with toElement(). \sa toElement() */ bool QDomNode::isElement() const { if(impl) return impl->isElement(); return false; } /*! Returns \c true if the node is an entity reference; otherwise returns false. If this function returns \c true, it does not imply that this object is a QDomEntityReference; you can get the QDomEntityReference with toEntityReference(). \sa toEntityReference() */ bool QDomNode::isEntityReference() const { if(impl) return impl->isEntityReference(); return false; } /*! Returns \c true if the node is a text node; otherwise returns \c false. If this function returns \c true, it does not imply that this object is a QDomText; you can get the QDomText with toText(). \sa toText() */ bool QDomNode::isText() const { if(impl) return impl->isText(); return false; } /*! Returns \c true if the node is an entity; otherwise returns \c false. If this function returns \c true, it does not imply that this object is a QDomEntity; you can get the QDomEntity with toEntity(). \sa toEntity() */ bool QDomNode::isEntity() const { if(impl) return impl->isEntity(); return false; } /*! Returns \c true if the node is a notation; otherwise returns \c false. If this function returns \c true, it does not imply that this object is a QDomNotation; you can get the QDomNotation with toNotation(). \sa toNotation() */ bool QDomNode::isNotation() const { if(impl) return impl->isNotation(); return false; } /*! Returns \c true if the node is a processing instruction; otherwise returns \c false. If this function returns \c true, it does not imply that this object is a QDomProcessingInstruction; you can get the QProcessingInstruction with toProcessingInstruction(). \sa toProcessingInstruction() */ bool QDomNode::isProcessingInstruction() const { if(impl) return impl->isProcessingInstruction(); return false; } /*! Returns \c true if the node is a character data node; otherwise returns \c false. If this function returns \c true, it does not imply that this object is a QDomCharacterData; you can get the QDomCharacterData with toCharacterData(). \sa toCharacterData() */ bool QDomNode::isCharacterData() const { if (impl) return impl->isCharacterData(); return false; } /*! Returns \c true if the node is a comment; otherwise returns \c false. If this function returns \c true, it does not imply that this object is a QDomComment; you can get the QDomComment with toComment(). \sa toComment() */ bool QDomNode::isComment() const { if (impl) return impl->isComment(); return false; } #undef IMPL /*! Returns the first child element with tag name \a tagName if tagName is non-empty; otherwise returns the first child element. Returns a null element if no such child exists. \sa lastChildElement(), previousSiblingElement(), nextSiblingElement() */ QDomElement QDomNode::firstChildElement(const QString &tagName) const { for (QDomNode child = firstChild(); !child.isNull(); child = child.nextSibling()) { if (child.isElement()) { QDomElement elt = child.toElement(); if (tagName.isEmpty() || elt.tagName() == tagName) return elt; } } return QDomElement(); } /*! Returns the last child element with tag name \a tagName if tagName is non-empty; otherwise returns the last child element. Returns a null element if no such child exists. \sa firstChildElement(), previousSiblingElement(), nextSiblingElement() */ QDomElement QDomNode::lastChildElement(const QString &tagName) const { for (QDomNode child = lastChild(); !child.isNull(); child = child.previousSibling()) { if (child.isElement()) { QDomElement elt = child.toElement(); if (tagName.isEmpty() || elt.tagName() == tagName) return elt; } } return QDomElement(); } /*! Returns the next sibling element with tag name \a tagName if \a tagName is non-empty; otherwise returns any next sibling element. Returns a null element if no such sibling exists. \sa firstChildElement(), previousSiblingElement(), lastChildElement() */ QDomElement QDomNode::nextSiblingElement(const QString &tagName) const { for (QDomNode sib = nextSibling(); !sib.isNull(); sib = sib.nextSibling()) { if (sib.isElement()) { QDomElement elt = sib.toElement(); if (tagName.isEmpty() || elt.tagName() == tagName) return elt; } } return QDomElement(); } /*! Returns the previous sibilng element with tag name \a tagName if \a tagName is non-empty; otherwise returns any previous sibling element. Returns a null element if no such sibling exists. \sa firstChildElement(), nextSiblingElement(), lastChildElement() */ QDomElement QDomNode::previousSiblingElement(const QString &tagName) const { for (QDomNode sib = previousSibling(); !sib.isNull(); sib = sib.previousSibling()) { if (sib.isElement()) { QDomElement elt = sib.toElement(); if (tagName.isEmpty() || elt.tagName() == tagName) return elt; } } return QDomElement(); } /*! \since 4.1 For nodes created by QDomDocument::setContent(), this function returns the line number in the XML document where the node was parsed. Otherwise, -1 is returned. \sa columnNumber(), QDomDocument::setContent() */ int QDomNode::lineNumber() const { return impl ? impl->lineNumber : -1; } /*! \since 4.1 For nodes created by QDomDocument::setContent(), this function returns the column number in the XML document where the node was parsed. Otherwise, -1 is returned. \sa lineNumber(), QDomDocument::setContent() */ int QDomNode::columnNumber() const { return impl ? impl->columnNumber : -1; } /************************************************************** * * QDomNamedNodeMapPrivate * **************************************************************/ QDomNamedNodeMapPrivate::QDomNamedNodeMapPrivate(QDomNodePrivate* n) : ref(1) { readonly = false; parent = n; appendToParent = false; } QDomNamedNodeMapPrivate::~QDomNamedNodeMapPrivate() { clearMap(); } QDomNamedNodeMapPrivate* QDomNamedNodeMapPrivate::clone(QDomNodePrivate* p) { QScopedPointer m(new QDomNamedNodeMapPrivate(p)); m->readonly = readonly; m->appendToParent = appendToParent; QHash::const_iterator it = map.constBegin(); for (; it != map.constEnd(); ++it) { QDomNodePrivate *new_node = (*it)->cloneNode(); new_node->setParent(p); m->setNamedItem(new_node); } // we are no longer interested in ownership m->ref.deref(); return m.take(); } void QDomNamedNodeMapPrivate::clearMap() { // Dereference all of our children if we took references if (!appendToParent) { QHash::const_iterator it = map.constBegin(); for (; it != map.constEnd(); ++it) if (!(*it)->ref.deref()) delete *it; } map.clear(); } QDomNodePrivate* QDomNamedNodeMapPrivate::namedItem(const QString& name) const { QDomNodePrivate* p = map[name]; return p; } QDomNodePrivate* QDomNamedNodeMapPrivate::namedItemNS(const QString& nsURI, const QString& localName) const { QHash::const_iterator it = map.constBegin(); QDomNodePrivate *n; for (; it != map.constEnd(); ++it) { n = *it; if (!n->prefix.isNull()) { // node has a namespace if (n->namespaceURI == nsURI && n->name == localName) return n; } } return 0; } QDomNodePrivate* QDomNamedNodeMapPrivate::setNamedItem(QDomNodePrivate* arg) { if (readonly || !arg) return 0; if (appendToParent) return parent->appendChild(arg); QDomNodePrivate *n = map.value(arg->nodeName()); // We take a reference arg->ref.ref(); map.insertMulti(arg->nodeName(), arg); return n; } QDomNodePrivate* QDomNamedNodeMapPrivate::setNamedItemNS(QDomNodePrivate* arg) { if (readonly || !arg) return 0; if (appendToParent) return parent->appendChild(arg); if (!arg->prefix.isNull()) { // node has a namespace QDomNodePrivate *n = namedItemNS(arg->namespaceURI, arg->name); // We take a reference arg->ref.ref(); map.insertMulti(arg->nodeName(), arg); return n; } else { // ### check the following code if it is ok return setNamedItem(arg); } } QDomNodePrivate* QDomNamedNodeMapPrivate::removeNamedItem(const QString& name) { if (readonly) return 0; QDomNodePrivate* p = namedItem(name); if (p == 0) return 0; if (appendToParent) return parent->removeChild(p); map.remove(p->nodeName()); // We took a reference, so we have to free one here p->ref.deref(); return p; } QDomNodePrivate* QDomNamedNodeMapPrivate::item(int index) const { if (index >= length() || index < 0) return 0; return *(map.constBegin() + index); } int QDomNamedNodeMapPrivate::length() const { return map.count(); } bool QDomNamedNodeMapPrivate::contains(const QString& name) const { return map.value(name) != 0; } bool QDomNamedNodeMapPrivate::containsNS(const QString& nsURI, const QString & localName) const { return namedItemNS(nsURI, localName) != 0; } /************************************************************** * * QDomNamedNodeMap * **************************************************************/ #define IMPL ((QDomNamedNodeMapPrivate*)impl) /*! \class QDomNamedNodeMap \reentrant \brief The QDomNamedNodeMap class contains a collection of nodes that can be accessed by name. \inmodule QtXml \ingroup xml-tools Note that QDomNamedNodeMap does not inherit from QDomNodeList. QDomNamedNodeMaps do not provide any specific node ordering. Although nodes in a QDomNamedNodeMap may be accessed by an ordinal index, this is simply to allow a convenient enumeration of the contents of a QDomNamedNodeMap, and does not imply that the DOM specifies an ordering of the nodes. The QDomNamedNodeMap is used in three places: \list 1 \li QDomDocumentType::entities() returns a map of all entities described in the DTD. \li QDomDocumentType::notations() returns a map of all notations described in the DTD. \li QDomNode::attributes() returns a map of all attributes of an element. \endlist Items in the map are identified by the name which QDomNode::name() returns. Nodes are retrieved using namedItem(), namedItemNS() or item(). New nodes are inserted with setNamedItem() or setNamedItemNS() and removed with removeNamedItem() or removeNamedItemNS(). Use contains() to see if an item with the given name is in the named node map. The number of items is returned by length(). Terminology: in this class we use "item" and "node" interchangeably. */ /*! Constructs an empty named node map. */ QDomNamedNodeMap::QDomNamedNodeMap() { impl = 0; } /*! Constructs a copy of \a n. */ QDomNamedNodeMap::QDomNamedNodeMap(const QDomNamedNodeMap &n) { impl = n.impl; if (impl) impl->ref.ref(); } QDomNamedNodeMap::QDomNamedNodeMap(QDomNamedNodeMapPrivate *n) { impl = n; if (impl) impl->ref.ref(); } /*! Assigns \a n to this named node map. */ QDomNamedNodeMap& QDomNamedNodeMap::operator=(const QDomNamedNodeMap &n) { if (n.impl) n.impl->ref.ref(); if (impl && !impl->ref.deref()) delete impl; impl = n.impl; return *this; } /*! Returns \c true if \a n and this named node map are equal; otherwise returns \c false. */ bool QDomNamedNodeMap::operator== (const QDomNamedNodeMap& n) const { return (impl == n.impl); } /*! Returns \c true if \a n and this named node map are not equal; otherwise returns \c false. */ bool QDomNamedNodeMap::operator!= (const QDomNamedNodeMap& n) const { return (impl != n.impl); } /*! Destroys the object and frees its resources. */ QDomNamedNodeMap::~QDomNamedNodeMap() { if (impl && !impl->ref.deref()) delete impl; } /*! Returns the node called \a name. If the named node map does not contain such a node, a \l{QDomNode::isNull()}{null node} is returned. A node's name is the name returned by QDomNode::nodeName(). \sa setNamedItem(), namedItemNS() */ QDomNode QDomNamedNodeMap::namedItem(const QString& name) const { if (!impl) return QDomNode(); return QDomNode(IMPL->namedItem(name)); } /*! Inserts the node \a newNode into the named node map. The name used by the map is the node name of \a newNode as returned by QDomNode::nodeName(). If the new node replaces an existing node, i.e. the map contains a node with the same name, the replaced node is returned. \sa namedItem(), removeNamedItem(), setNamedItemNS() */ QDomNode QDomNamedNodeMap::setNamedItem(const QDomNode& newNode) { if (!impl) return QDomNode(); return QDomNode(IMPL->setNamedItem((QDomNodePrivate*)newNode.impl)); } /*! Removes the node called \a name from the map. The function returns the removed node or a \l{QDomNode::isNull()}{null node} if the map did not contain a node called \a name. \sa setNamedItem(), namedItem(), removeNamedItemNS() */ QDomNode QDomNamedNodeMap::removeNamedItem(const QString& name) { if (!impl) return QDomNode(); return QDomNode(IMPL->removeNamedItem(name)); } /*! Retrieves the node at position \a index. This can be used to iterate over the map. Note that the nodes in the map are ordered arbitrarily. \sa length() */ QDomNode QDomNamedNodeMap::item(int index) const { if (!impl) return QDomNode(); return QDomNode(IMPL->item(index)); } /*! Returns the node associated with the local name \a localName and the namespace URI \a nsURI. If the map does not contain such a node, a \l{QDomNode::isNull()}{null node} is returned. \sa setNamedItemNS(), namedItem() */ QDomNode QDomNamedNodeMap::namedItemNS(const QString& nsURI, const QString& localName) const { if (!impl) return QDomNode(); return QDomNode(IMPL->namedItemNS(nsURI, localName)); } /*! Inserts the node \a newNode in the map. If a node with the same namespace URI and the same local name already exists in the map, it is replaced by \a newNode. If the new node replaces an existing node, the replaced node is returned. \sa namedItemNS(), removeNamedItemNS(), setNamedItem() */ QDomNode QDomNamedNodeMap::setNamedItemNS(const QDomNode& newNode) { if (!impl) return QDomNode(); return QDomNode(IMPL->setNamedItemNS((QDomNodePrivate*)newNode.impl)); } /*! Removes the node with the local name \a localName and the namespace URI \a nsURI from the map. The function returns the removed node or a \l{QDomNode::isNull()}{null node} if the map did not contain a node with the local name \a localName and the namespace URI \a nsURI. \sa setNamedItemNS(), namedItemNS(), removeNamedItem() */ QDomNode QDomNamedNodeMap::removeNamedItemNS(const QString& nsURI, const QString& localName) { if (!impl) return QDomNode(); QDomNodePrivate *n = IMPL->namedItemNS(nsURI, localName); if (!n) return QDomNode(); return QDomNode(IMPL->removeNamedItem(n->name)); } /*! Returns the number of nodes in the map. \sa item() */ int QDomNamedNodeMap::length() const { if (!impl) return 0; return IMPL->length(); } /*! \fn bool QDomNamedNodeMap::isEmpty() const Returns \c true if the map is empty; otherwise returns \c false. This function is provided for Qt API consistency. */ /*! \fn int QDomNamedNodeMap::count() const This function is provided for Qt API consistency. It is equivalent to length(). */ /*! \fn int QDomNamedNodeMap::size() const This function is provided for Qt API consistency. It is equivalent to length(). */ /*! Returns \c true if the map contains a node called \a name; otherwise returns \c false. \b{Note:} This function does not take the presence of namespaces into account. Use namedItemNS() to test whether the map contains a node with a specific namespace URI and name. */ bool QDomNamedNodeMap::contains(const QString& name) const { if (!impl) return false; return IMPL->contains(name); } #undef IMPL /************************************************************** * * QDomDocumentTypePrivate * **************************************************************/ QDomDocumentTypePrivate::QDomDocumentTypePrivate(QDomDocumentPrivate* doc, QDomNodePrivate* parent) : QDomNodePrivate(doc, parent) { init(); } QDomDocumentTypePrivate::QDomDocumentTypePrivate(QDomDocumentTypePrivate* n, bool deep) : QDomNodePrivate(n, deep) { init(); // Refill the maps with our new children QDomNodePrivate* p = first; while (p) { if (p->isEntity()) // Don't use normal insert function since we would create infinite recursion entities->map.insertMulti(p->nodeName(), p); if (p->isNotation()) // Don't use normal insert function since we would create infinite recursion notations->map.insertMulti(p->nodeName(), p); p = p->next; } } QDomDocumentTypePrivate::~QDomDocumentTypePrivate() { if (!entities->ref.deref()) delete entities; if (!notations->ref.deref()) delete notations; } void QDomDocumentTypePrivate::init() { entities = new QDomNamedNodeMapPrivate(this); QT_TRY { notations = new QDomNamedNodeMapPrivate(this); publicId.clear(); systemId.clear(); internalSubset.clear(); entities->setAppendToParent(true); notations->setAppendToParent(true); } QT_CATCH(...) { delete entities; QT_RETHROW; } } QDomNodePrivate* QDomDocumentTypePrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomDocumentTypePrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } QDomNodePrivate* QDomDocumentTypePrivate::insertBefore(QDomNodePrivate* newChild, QDomNodePrivate* refChild) { // Call the origianl implementation QDomNodePrivate* p = QDomNodePrivate::insertBefore(newChild, refChild); // Update the maps if (p && p->isEntity()) entities->map.insertMulti(p->nodeName(), p); else if (p && p->isNotation()) notations->map.insertMulti(p->nodeName(), p); return p; } QDomNodePrivate* QDomDocumentTypePrivate::insertAfter(QDomNodePrivate* newChild, QDomNodePrivate* refChild) { // Call the origianl implementation QDomNodePrivate* p = QDomNodePrivate::insertAfter(newChild, refChild); // Update the maps if (p && p->isEntity()) entities->map.insertMulti(p->nodeName(), p); else if (p && p->isNotation()) notations->map.insertMulti(p->nodeName(), p); return p; } QDomNodePrivate* QDomDocumentTypePrivate::replaceChild(QDomNodePrivate* newChild, QDomNodePrivate* oldChild) { // Call the origianl implementation QDomNodePrivate* p = QDomNodePrivate::replaceChild(newChild, oldChild); // Update the maps if (p) { if (oldChild && oldChild->isEntity()) entities->map.remove(oldChild->nodeName()); else if (oldChild && oldChild->isNotation()) notations->map.remove(oldChild->nodeName()); if (p->isEntity()) entities->map.insertMulti(p->nodeName(), p); else if (p->isNotation()) notations->map.insertMulti(p->nodeName(), p); } return p; } QDomNodePrivate* QDomDocumentTypePrivate::removeChild(QDomNodePrivate* oldChild) { // Call the origianl implementation QDomNodePrivate* p = QDomNodePrivate::removeChild( oldChild); // Update the maps if (p && p->isEntity()) entities->map.remove(p->nodeName()); else if (p && p->isNotation()) notations->map.remove(p ->nodeName()); return p; } QDomNodePrivate* QDomDocumentTypePrivate::appendChild(QDomNodePrivate* newChild) { return insertAfter(newChild, 0); } static QString quotedValue(const QString &data) { QChar quote = data.indexOf(QLatin1Char('\'')) == -1 ? QLatin1Char('\'') : QLatin1Char('"'); return quote + data + quote; } void QDomDocumentTypePrivate::save(QTextStream& s, int, int indent) const { if (name.isEmpty()) return; s << "length()>0 || notations->length()>0) { s << " [" << endl; QHash::const_iterator it2 = notations->map.constBegin(); for (; it2 != notations->map.constEnd(); ++it2) (*it2)->save(s, 0, indent); QHash::const_iterator it = entities->map.constBegin(); for (; it != entities->map.constEnd(); ++it) (*it)->save(s, 0, indent); s << ']'; } s << '>' << endl; } /************************************************************** * * QDomDocumentType * **************************************************************/ #define IMPL ((QDomDocumentTypePrivate*)impl) /*! \class QDomDocumentType \reentrant \brief The QDomDocumentType class is the representation of the DTD in the document tree. \inmodule QtXml \ingroup xml-tools The QDomDocumentType class allows read-only access to some of the data structures in the DTD: it can return a map of all entities() and notations(). In addition the function name() returns the name of the document type as specified in the <!DOCTYPE name> tag. This class also provides the publicId(), systemId() and internalSubset() functions. \sa QDomDocument */ /*! Creates an empty QDomDocumentType object. */ QDomDocumentType::QDomDocumentType() : QDomNode() { } /*! Constructs a copy of \a n. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomDocumentType::QDomDocumentType(const QDomDocumentType& n) : QDomNode(n) { } QDomDocumentType::QDomDocumentType(QDomDocumentTypePrivate* n) : QDomNode(n) { } /*! Assigns \a n to this document type. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomDocumentType& QDomDocumentType::operator= (const QDomDocumentType& n) { return (QDomDocumentType&) QDomNode::operator=(n); } /*! Returns the name of the document type as specified in the <!DOCTYPE name> tag. \sa nodeName() */ QString QDomDocumentType::name() const { if (!impl) return QString(); return IMPL->nodeName(); } /*! Returns a map of all entities described in the DTD. */ QDomNamedNodeMap QDomDocumentType::entities() const { if (!impl) return QDomNamedNodeMap(); return QDomNamedNodeMap(IMPL->entities); } /*! Returns a map of all notations described in the DTD. */ QDomNamedNodeMap QDomDocumentType::notations() const { if (!impl) return QDomNamedNodeMap(); return QDomNamedNodeMap(IMPL->notations); } /*! Returns the public identifier of the external DTD subset or an empty string if there is no public identifier. \sa systemId(), internalSubset(), QDomImplementation::createDocumentType() */ QString QDomDocumentType::publicId() const { if (!impl) return QString(); return IMPL->publicId; } /*! Returns the system identifier of the external DTD subset or an empty string if there is no system identifier. \sa publicId(), internalSubset(), QDomImplementation::createDocumentType() */ QString QDomDocumentType::systemId() const { if (!impl) return QString(); return IMPL->systemId; } /*! Returns the internal subset of the document type or an empty string if there is no internal subset. \sa publicId(), systemId() */ QString QDomDocumentType::internalSubset() const { if (!impl) return QString(); return IMPL->internalSubset; } /* Are these needed at all? The only difference when removing these two methods in all subclasses is that we'd get a different type for null nodes. */ /*! \fn QDomNode::NodeType QDomDocumentType::nodeType() const Returns \c DocumentTypeNode. \sa isDocumentType(), QDomNode::toDocumentType() */ #undef IMPL /************************************************************** * * QDomDocumentFragmentPrivate * **************************************************************/ QDomDocumentFragmentPrivate::QDomDocumentFragmentPrivate(QDomDocumentPrivate* doc, QDomNodePrivate* parent) : QDomNodePrivate(doc, parent) { name = QLatin1String("#document-fragment"); } QDomDocumentFragmentPrivate::QDomDocumentFragmentPrivate(QDomNodePrivate* n, bool deep) : QDomNodePrivate(n, deep) { } QDomNodePrivate* QDomDocumentFragmentPrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomDocumentFragmentPrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } /************************************************************** * * QDomDocumentFragment * **************************************************************/ /*! \class QDomDocumentFragment \reentrant \brief The QDomDocumentFragment class is a tree of QDomNodes which is not usually a complete QDomDocument. \inmodule QtXml \ingroup xml-tools If you want to do complex tree operations it is useful to have a lightweight class to store nodes and their relations. QDomDocumentFragment stores a subtree of a document which does not necessarily represent a well-formed XML document. QDomDocumentFragment is also useful if you want to group several nodes in a list and insert them all together as children of some node. In these cases QDomDocumentFragment can be used as a temporary container for this list of children. The most important feature of QDomDocumentFragment is that it is treated in a special way by QDomNode::insertAfter(), QDomNode::insertBefore(), QDomNode::replaceChild() and QDomNode::appendChild(): instead of inserting the fragment itself, all the fragment's children are inserted. */ /*! Constructs an empty document fragment. */ QDomDocumentFragment::QDomDocumentFragment() { } QDomDocumentFragment::QDomDocumentFragment(QDomDocumentFragmentPrivate* n) : QDomNode(n) { } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomDocumentFragment::QDomDocumentFragment(const QDomDocumentFragment& x) : QDomNode(x) { } /*! Assigns \a x to this DOM document fragment. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomDocumentFragment& QDomDocumentFragment::operator= (const QDomDocumentFragment& x) { return (QDomDocumentFragment&) QDomNode::operator=(x); } /*! \fn QDomNode::NodeType QDomDocumentFragment::nodeType() const Returns \c DocumentFragment. \sa isDocumentFragment(), QDomNode::toDocumentFragment() */ /************************************************************** * * QDomCharacterDataPrivate * **************************************************************/ QDomCharacterDataPrivate::QDomCharacterDataPrivate(QDomDocumentPrivate* d, QDomNodePrivate* p, const QString& data) : QDomNodePrivate(d, p) { value = data; name = QLatin1String("#character-data"); } QDomCharacterDataPrivate::QDomCharacterDataPrivate(QDomCharacterDataPrivate* n, bool deep) : QDomNodePrivate(n, deep) { } QDomNodePrivate* QDomCharacterDataPrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomCharacterDataPrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } int QDomCharacterDataPrivate::dataLength() const { return value.length(); } QString QDomCharacterDataPrivate::substringData(unsigned long offset, unsigned long n) const { return value.mid(offset, n); } void QDomCharacterDataPrivate::insertData(unsigned long offset, const QString& arg) { value.insert(offset, arg); } void QDomCharacterDataPrivate::deleteData(unsigned long offset, unsigned long n) { value.remove(offset, n); } void QDomCharacterDataPrivate::replaceData(unsigned long offset, unsigned long n, const QString& arg) { value.replace(offset, n, arg); } void QDomCharacterDataPrivate::appendData(const QString& arg) { value += arg; } /************************************************************** * * QDomCharacterData * **************************************************************/ #define IMPL ((QDomCharacterDataPrivate*)impl) /*! \class QDomCharacterData \reentrant \brief The QDomCharacterData class represents a generic string in the DOM. \inmodule QtXml \ingroup xml-tools Character data as used in XML specifies a generic data string. More specialized versions of this class are QDomText, QDomComment and QDomCDATASection. The data string is set with setData() and retrieved with data(). You can retrieve a portion of the data string using substringData(). Extra data can be appended with appendData(), or inserted with insertData(). Portions of the data string can be deleted with deleteData() or replaced with replaceData(). The length of the data string is returned by length(). The node type of the node containing this character data is returned by nodeType(). \sa QDomText, QDomComment, QDomCDATASection */ /*! Constructs an empty character data object. */ QDomCharacterData::QDomCharacterData() { } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomCharacterData::QDomCharacterData(const QDomCharacterData& x) : QDomNode(x) { } QDomCharacterData::QDomCharacterData(QDomCharacterDataPrivate* n) : QDomNode(n) { } /*! Assigns \a x to this character data. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomCharacterData& QDomCharacterData::operator= (const QDomCharacterData& x) { return (QDomCharacterData&) QDomNode::operator=(x); } /*! Returns the string stored in this object. If the node is a \l{isNull()}{null node}, it will return an empty string. */ QString QDomCharacterData::data() const { if (!impl) return QString(); return impl->nodeValue(); } /*! Sets this object's string to \a v. */ void QDomCharacterData::setData(const QString& v) { if (impl) impl->setNodeValue(v); } /*! Returns the length of the stored string. */ int QDomCharacterData::length() const { if (impl) return IMPL->dataLength(); return 0; } /*! Returns the substring of length \a count from position \a offset. */ QString QDomCharacterData::substringData(unsigned long offset, unsigned long count) { if (!impl) return QString(); return IMPL->substringData(offset, count); } /*! Appends the string \a arg to the stored string. */ void QDomCharacterData::appendData(const QString& arg) { if (impl) IMPL->appendData(arg); } /*! Inserts the string \a arg into the stored string at position \a offset. */ void QDomCharacterData::insertData(unsigned long offset, const QString& arg) { if (impl) IMPL->insertData(offset, arg); } /*! Deletes a substring of length \a count from position \a offset. */ void QDomCharacterData::deleteData(unsigned long offset, unsigned long count) { if (impl) IMPL->deleteData(offset, count); } /*! Replaces the substring of length \a count starting at position \a offset with the string \a arg. */ void QDomCharacterData::replaceData(unsigned long offset, unsigned long count, const QString& arg) { if (impl) IMPL->replaceData(offset, count, arg); } /*! Returns the type of node this object refers to (i.e. \c TextNode, \c CDATASectionNode, \c CommentNode or \c CharacterDataNode). For a \l{isNull()}{null node}, returns \c CharacterDataNode. */ QDomNode::NodeType QDomCharacterData::nodeType() const { if (!impl) return CharacterDataNode; return QDomNode::nodeType(); } #undef IMPL /************************************************************** * * QDomAttrPrivate * **************************************************************/ QDomAttrPrivate::QDomAttrPrivate(QDomDocumentPrivate* d, QDomNodePrivate* parent, const QString& name_) : QDomNodePrivate(d, parent) { name = name_; m_specified = false; } QDomAttrPrivate::QDomAttrPrivate(QDomDocumentPrivate* d, QDomNodePrivate* p, const QString& nsURI, const QString& qName) : QDomNodePrivate(d, p) { qt_split_namespace(prefix, name, qName, !nsURI.isNull()); namespaceURI = nsURI; createdWithDom1Interface = false; m_specified = false; } QDomAttrPrivate::QDomAttrPrivate(QDomAttrPrivate* n, bool deep) : QDomNodePrivate(n, deep) { m_specified = n->specified(); } void QDomAttrPrivate::setNodeValue(const QString& v) { value = v; QDomTextPrivate *t = new QDomTextPrivate(0, this, v); // keep the refcount balanced: appendChild() does a ref anyway. t->ref.deref(); if (first) { delete removeChild(first); } appendChild(t); } QDomNodePrivate* QDomAttrPrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomAttrPrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } bool QDomAttrPrivate::specified() const { return m_specified; } /* \internal Encode & escape \a str. Yes, it makes no sense to return a QString, but is so for legacy reasons. Remember that content produced should be able to roundtrip with 2.11 End-of-Line Handling and 3.3.3 Attribute-Value Normalization. If \a performAVN is true, characters will be escaped to survive Attribute Value Normalization. If \a encodeEOLs is true, characters will be escaped to survive End-of-Line Handling. */ static QString encodeText(const QString &str, QTextStream &s, const bool encodeQuotes = true, const bool performAVN = false, const bool encodeEOLs = false) { #ifdef QT_NO_TEXTCODEC Q_UNUSED(s); #else const QTextCodec *const codec = s.codec(); Q_ASSERT(codec); #endif QString retval(str); int len = retval.length(); int i = 0; while (i < len) { const QChar ati(retval.at(i)); if (ati == QLatin1Char('<')) { retval.replace(i, 1, QLatin1String("<")); len += 3; i += 4; } else if (encodeQuotes && (ati == QLatin1Char('"'))) { retval.replace(i, 1, QLatin1String(""")); len += 5; i += 6; } else if (ati == QLatin1Char('&')) { retval.replace(i, 1, QLatin1String("&")); len += 4; i += 5; } else if (ati == QLatin1Char('>') && i >= 2 && retval[i - 1] == QLatin1Char(']') && retval[i - 2] == QLatin1Char(']')) { retval.replace(i, 1, QLatin1String(">")); len += 3; i += 4; } else if (performAVN && (ati == QChar(0xA) || ati == QChar(0xD) || ati == QChar(0x9))) { const QString replacement(QLatin1String("&#x") + QString::number(ati.unicode(), 16) + QLatin1Char(';')); retval.replace(i, 1, replacement); i += replacement.length(); len += replacement.length() - 1; } else if (encodeEOLs && ati == QChar(0xD)) { retval.replace(i, 1, QLatin1String(" ")); // Replace a single 0xD with a ref for 0xD len += 4; i += 5; } else { #ifndef QT_NO_TEXTCODEC if(codec->canEncode(ati)) ++i; else #endif { // We have to use a character reference to get it through. const ushort codepoint(ati.unicode()); const QString replacement(QLatin1String("&#x") + QString::number(codepoint, 16) + QLatin1Char(';')); retval.replace(i, 1, replacement); i += replacement.length(); len += replacement.length() - 1; } } } return retval; } void QDomAttrPrivate::save(QTextStream& s, int, int) const { if (namespaceURI.isNull()) { s << name << "=\"" << encodeText(value, s, true, true) << '\"'; } else { s << prefix << ':' << name << "=\"" << encodeText(value, s, true, true) << '\"'; /* This is a fix for 138243, as good as it gets. * * QDomElementPrivate::save() output a namespace declaration if * the element is in a namespace, no matter what. This function do as well, meaning * that we get two identical namespace declaration if we don't have the if- * statement below. * * This doesn't work when the parent element has the same prefix as us but * a different namespace. However, this can only occur by the user modifying the element, * and we don't do fixups by that anyway, and hence it's the user responsibility to not * arrive in those situations. */ if(!ownerNode || ownerNode->prefix != prefix) { s << " xmlns:" << prefix << "=\"" << encodeText(namespaceURI, s, true, true) << '\"'; } } } /************************************************************** * * QDomAttr * **************************************************************/ #define IMPL ((QDomAttrPrivate*)impl) /*! \class QDomAttr \reentrant \brief The QDomAttr class represents one attribute of a QDomElement. \inmodule QtXml \ingroup xml-tools For example, the following piece of XML produces an element with no children, but two attributes: \snippet code/src_xml_dom_qdom.cpp 7 You can access the attributes of an element with code like this: \snippet code/src_xml_dom_qdom.cpp 8 This example also shows that changing an attribute received from an element changes the attribute of the element. If you do not want to change the value of the element's attribute you must use cloneNode() to get an independent copy of the attribute. QDomAttr can return the name() and value() of an attribute. An attribute's value is set with setValue(). If specified() returns true the value was set with setValue(). The node this attribute is attached to (if any) is returned by ownerElement(). For further information about the Document Object Model see \l{http://www.w3.org/TR/REC-DOM-Level-1/} and \l{http://www.w3.org/TR/DOM-Level-2-Core/}. For a more general introduction of the DOM implementation see the QDomDocument documentation. */ /*! Constructs an empty attribute. */ QDomAttr::QDomAttr() { } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomAttr::QDomAttr(const QDomAttr& x) : QDomNode(x) { } QDomAttr::QDomAttr(QDomAttrPrivate* n) : QDomNode(n) { } /*! Assigns \a x to this DOM attribute. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomAttr& QDomAttr::operator= (const QDomAttr& x) { return (QDomAttr&) QDomNode::operator=(x); } /*! Returns the attribute's name. */ QString QDomAttr::name() const { if (!impl) return QString(); return impl->nodeName(); } /*! Returns \c true if the attribute has been set by the user with setValue(). Returns \c false if the value hasn't been specified or set. \sa setValue() */ bool QDomAttr::specified() const { if (!impl) return false; return IMPL->specified(); } /*! Returns the element node this attribute is attached to or a \l{QDomNode::isNull()}{null node} if this attribute is not attached to any element. */ QDomElement QDomAttr::ownerElement() const { Q_ASSERT(impl->parent()); if (!impl->parent()->isElement()) return QDomElement(); return QDomElement((QDomElementPrivate*)(impl->parent())); } /*! Returns the value of the attribute or an empty string if the attribute has not been specified. \sa specified(), setValue() */ QString QDomAttr::value() const { if (!impl) return QString(); return impl->nodeValue(); } /*! Sets the attribute's value to \a v. \sa value() */ void QDomAttr::setValue(const QString& v) { if (!impl) return; impl->setNodeValue(v); IMPL->m_specified = true; } /*! \fn QDomNode::NodeType QDomAttr::nodeType() const Returns \l{QDomNode::NodeType}{AttributeNode}. */ #undef IMPL /************************************************************** * * QDomElementPrivate * **************************************************************/ QDomElementPrivate::QDomElementPrivate(QDomDocumentPrivate* d, QDomNodePrivate* p, const QString& tagname) : QDomNodePrivate(d, p) { name = tagname; m_attr = new QDomNamedNodeMapPrivate(this); } QDomElementPrivate::QDomElementPrivate(QDomDocumentPrivate* d, QDomNodePrivate* p, const QString& nsURI, const QString& qName) : QDomNodePrivate(d, p) { qt_split_namespace(prefix, name, qName, !nsURI.isNull()); namespaceURI = nsURI; createdWithDom1Interface = false; m_attr = new QDomNamedNodeMapPrivate(this); } QDomElementPrivate::QDomElementPrivate(QDomElementPrivate* n, bool deep) : QDomNodePrivate(n, deep) { m_attr = n->m_attr->clone(this); // Reference is down to 0, so we set it to 1 here. m_attr->ref.ref(); } QDomElementPrivate::~QDomElementPrivate() { if (!m_attr->ref.deref()) delete m_attr; } QDomNodePrivate* QDomElementPrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomElementPrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } QString QDomElementPrivate::attribute(const QString& name_, const QString& defValue) const { QDomNodePrivate* n = m_attr->namedItem(name_); if (!n) return defValue; return n->nodeValue(); } QString QDomElementPrivate::attributeNS(const QString& nsURI, const QString& localName, const QString& defValue) const { QDomNodePrivate* n = m_attr->namedItemNS(nsURI, localName); if (!n) return defValue; return n->nodeValue(); } void QDomElementPrivate::setAttribute(const QString& aname, const QString& newValue) { QDomNodePrivate* n = m_attr->namedItem(aname); if (!n) { n = new QDomAttrPrivate(ownerDocument(), this, aname); n->setNodeValue(newValue); // Referencing is done by the map, so we set the reference counter back // to 0 here. This is ok since we created the QDomAttrPrivate. n->ref.deref(); m_attr->setNamedItem(n); } else { n->setNodeValue(newValue); } } void QDomElementPrivate::setAttributeNS(const QString& nsURI, const QString& qName, const QString& newValue) { QString prefix, localName; qt_split_namespace(prefix, localName, qName, true); QDomNodePrivate* n = m_attr->namedItemNS(nsURI, localName); if (!n) { n = new QDomAttrPrivate(ownerDocument(), this, nsURI, qName); n->setNodeValue(newValue); // Referencing is done by the map, so we set the reference counter back // to 0 here. This is ok since we created the QDomAttrPrivate. n->ref.deref(); m_attr->setNamedItem(n); } else { n->setNodeValue(newValue); n->prefix = prefix; } } void QDomElementPrivate::removeAttribute(const QString& aname) { QDomNodePrivate* p = m_attr->removeNamedItem(aname); if (p && p->ref.load() == 0) delete p; } QDomAttrPrivate* QDomElementPrivate::attributeNode(const QString& aname) { return (QDomAttrPrivate*)m_attr->namedItem(aname); } QDomAttrPrivate* QDomElementPrivate::attributeNodeNS(const QString& nsURI, const QString& localName) { return (QDomAttrPrivate*)m_attr->namedItemNS(nsURI, localName); } QDomAttrPrivate* QDomElementPrivate::setAttributeNode(QDomAttrPrivate* newAttr) { QDomNodePrivate* n = m_attr->namedItem(newAttr->nodeName()); // Referencing is done by the maps m_attr->setNamedItem(newAttr); newAttr->setParent(this); return (QDomAttrPrivate*)n; } QDomAttrPrivate* QDomElementPrivate::setAttributeNodeNS(QDomAttrPrivate* newAttr) { QDomNodePrivate* n = 0; if (!newAttr->prefix.isNull()) n = m_attr->namedItemNS(newAttr->namespaceURI, newAttr->name); // Referencing is done by the maps m_attr->setNamedItem(newAttr); return (QDomAttrPrivate*)n; } QDomAttrPrivate* QDomElementPrivate::removeAttributeNode(QDomAttrPrivate* oldAttr) { return (QDomAttrPrivate*)m_attr->removeNamedItem(oldAttr->nodeName()); } bool QDomElementPrivate::hasAttribute(const QString& aname) { return m_attr->contains(aname); } bool QDomElementPrivate::hasAttributeNS(const QString& nsURI, const QString& localName) { return m_attr->containsNS(nsURI, localName); } QString QDomElementPrivate::text() { QString t(QLatin1String("")); QDomNodePrivate* p = first; while (p) { if (p->isText() || p->isCDATASection()) t += p->nodeValue(); else if (p->isElement()) t += ((QDomElementPrivate*)p)->text(); p = p->next; } return t; } void QDomElementPrivate::save(QTextStream& s, int depth, int indent) const { if (!(prev && prev->isText())) s << QString(indent < 1 ? 0 : depth * indent, QLatin1Char(' ')); QString qName(name); QString nsDecl(QLatin1String("")); if (!namespaceURI.isNull()) { /** ### * * If we still have QDom, optimize this so that we only declare namespaces that are not * yet declared. We loose default namespace mappings, so maybe we should rather store * the information that we get from startPrefixMapping()/endPrefixMapping() and use them. * Modifications becomes more complex then, however. * * We cannot do this in a patch release because it would require too invasive changes, and * hence possibly behavioral changes. */ if (prefix.isEmpty()) { nsDecl = QLatin1String(" xmlns"); } else { qName = prefix + QLatin1Char(':') + name; nsDecl = QLatin1String(" xmlns:") + prefix; } nsDecl += QLatin1String("=\"") + encodeText(namespaceURI, s) + QLatin1Char('\"'); } s << '<' << qName << nsDecl; QSet outputtedPrefixes; /* Write out attributes. */ if (!m_attr->map.isEmpty()) { QHash::const_iterator it = m_attr->map.constBegin(); for (; it != m_attr->map.constEnd(); ++it) { s << ' '; if (it.value()->namespaceURI.isNull()) { s << it.value()->name << "=\"" << encodeText(it.value()->value, s, true, true) << '\"'; } else { s << it.value()->prefix << ':' << it.value()->name << "=\"" << encodeText(it.value()->value, s, true, true) << '\"'; /* This is a fix for 138243, as good as it gets. * * QDomElementPrivate::save() output a namespace declaration if * the element is in a namespace, no matter what. This function do as well, meaning * that we get two identical namespace declaration if we don't have the if- * statement below. * * This doesn't work when the parent element has the same prefix as us but * a different namespace. However, this can only occur by the user modifying the element, * and we don't do fixups by that anyway, and hence it's the user responsibility to not * arrive in those situations. */ if((!it.value()->ownerNode || it.value()->ownerNode->prefix != it.value()->prefix) && !outputtedPrefixes.contains(it.value()->prefix)) { s << " xmlns:" << it.value()->prefix << "=\"" << encodeText(it.value()->namespaceURI, s, true, true) << '\"'; outputtedPrefixes.insert(it.value()->prefix); } } } } if (last) { // has child nodes if (first->isText()) s << '>'; else { s << '>'; /* -1 disables new lines. */ if (indent != -1) s << endl; } QDomNodePrivate::save(s, depth + 1, indent); if (!last->isText()) s << QString(indent < 1 ? 0 : depth * indent, QLatin1Char(' ')); s << "'; } else { s << "/>"; } if (!(next && next->isText())) { /* -1 disables new lines. */ if (indent != -1) s << endl; } } /************************************************************** * * QDomElement * **************************************************************/ #define IMPL ((QDomElementPrivate*)impl) /*! \class QDomElement \reentrant \brief The QDomElement class represents one element in the DOM tree. \inmodule QtXml \ingroup xml-tools Elements have a tagName() and zero or more attributes associated with them. The tag name can be changed with setTagName(). Element attributes are represented by QDomAttr objects that can be queried using the attribute() and attributeNode() functions. You can set attributes with the setAttribute() and setAttributeNode() functions. Attributes can be removed with removeAttribute(). There are namespace-aware equivalents to these functions, i.e. setAttributeNS(), setAttributeNodeNS() and removeAttributeNS(). If you want to access the text of a node use text(), e.g. \snippet code/src_xml_dom_qdom.cpp 9 The text() function operates recursively to find the text (since not all elements contain text). If you want to find all the text in all of a node's children, iterate over the children looking for QDomText nodes, e.g. \snippet code/src_xml_dom_qdom.cpp 10 Note that we attempt to convert each node to a text node and use text() rather than using firstChild().toText().data() or n.toText().data() directly on the node, because the node may not be a text element. You can get a list of all the decendents of an element which have a specified tag name with elementsByTagName() or elementsByTagNameNS(). To browse the elements of a dom document use firstChildElement(), lastChildElement(), nextSiblingElement() and previousSiblingElement(). For example, to iterate over all child elements called "entry" in a root element called "database", you can use: \snippet code/src_xml_dom_qdom.cpp 11 For further information about the Document Object Model see \l{W3C DOM Level 1}{Level 1} and \l{W3C DOM Level 2}{Level 2 Core}. For a more general introduction of the DOM implementation see the QDomDocument documentation. */ /*! Constructs an empty element. Use the QDomDocument::createElement() function to construct elements with content. */ QDomElement::QDomElement() : QDomNode() { } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomElement::QDomElement(const QDomElement& x) : QDomNode(x) { } QDomElement::QDomElement(QDomElementPrivate* n) : QDomNode(n) { } /*! Assigns \a x to this DOM element. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomElement& QDomElement::operator= (const QDomElement& x) { return (QDomElement&) QDomNode::operator=(x); } /*! \fn QDomNode::NodeType QDomElement::nodeType() const Returns \c ElementNode. */ /*! Sets this element's tag name to \a name. \sa tagName() */ void QDomElement::setTagName(const QString& name) { if (impl) impl->name = name; } /*! Returns the tag name of this element. For an XML element like this: \snippet code/src_xml_dom_qdom.cpp 12 the tagname would return "img". \sa setTagName() */ QString QDomElement::tagName() const { if (!impl) return QString(); return impl->nodeName(); } /*! Returns a QDomNamedNodeMap containing all this element's attributes. \sa attribute(), setAttribute(), attributeNode(), setAttributeNode() */ QDomNamedNodeMap QDomElement::attributes() const { if (!impl) return QDomNamedNodeMap(); return QDomNamedNodeMap(IMPL->attributes()); } /*! Returns the attribute called \a name. If the attribute does not exist \a defValue is returned. \sa setAttribute(), attributeNode(), setAttributeNode(), attributeNS() */ QString QDomElement::attribute(const QString& name, const QString& defValue) const { if (!impl) return defValue; return IMPL->attribute(name, defValue); } /*! Adds an attribute called \a name with value \a value. If an attribute with the same name exists, its value is replaced by \a value. \sa attribute(), setAttributeNode(), setAttributeNS() */ void QDomElement::setAttribute(const QString& name, const QString& value) { if (!impl) return; IMPL->setAttribute(name, value); } /*! \fn void QDomElement::setAttribute(const QString& name, int value) \overload The number is formatted according to the current locale. */ /*! \fn void QDomElement::setAttribute(const QString& name, uint value) \overload The number is formatted according to the current locale. */ /*! \overload The number is formatted according to the current locale. */ void QDomElement::setAttribute(const QString& name, qlonglong value) { if (!impl) return; QString x; x.setNum(value); IMPL->setAttribute(name, x); } /*! \overload The number is formatted according to the current locale. */ void QDomElement::setAttribute(const QString& name, qulonglong value) { if (!impl) return; QString x; x.setNum(value); IMPL->setAttribute(name, x); } /*! \overload The number is formatted according to the current locale. */ void QDomElement::setAttribute(const QString& name, float value) { if (!impl) return; QString x; x.setNum(value); IMPL->setAttribute(name, x); } /*! \overload The number is formatted according to the current locale. */ void QDomElement::setAttribute(const QString& name, double value) { if (!impl) return; QString x; char buf[256]; int count = qsnprintf(buf, sizeof(buf), "%.16g", value); if (count > 0) x = QString::fromLatin1(buf, count); else x.setNum(value); // Fallback IMPL->setAttribute(name, x); } /*! Removes the attribute called name \a name from this element. \sa setAttribute(), attribute(), removeAttributeNS() */ void QDomElement::removeAttribute(const QString& name) { if (!impl) return; IMPL->removeAttribute(name); } /*! Returns the QDomAttr object that corresponds to the attribute called \a name. If no such attribute exists a \l{QDomNode::isNull()}{null attribute} is returned. \sa setAttributeNode(), attribute(), setAttribute(), attributeNodeNS() */ QDomAttr QDomElement::attributeNode(const QString& name) { if (!impl) return QDomAttr(); return QDomAttr(IMPL->attributeNode(name)); } /*! Adds the attribute \a newAttr to this element. If the element has another attribute that has the same name as \a newAttr, this function replaces that attribute and returns it; otherwise the function returns a \l{QDomNode::isNull()}{null attribute}. \sa attributeNode(), setAttribute(), setAttributeNodeNS() */ QDomAttr QDomElement::setAttributeNode(const QDomAttr& newAttr) { if (!impl) return QDomAttr(); return QDomAttr(IMPL->setAttributeNode(((QDomAttrPrivate*)newAttr.impl))); } /*! Removes the attribute \a oldAttr from the element and returns it. \sa attributeNode(), setAttributeNode() */ QDomAttr QDomElement::removeAttributeNode(const QDomAttr& oldAttr) { if (!impl) return QDomAttr(); // ### should this return oldAttr? return QDomAttr(IMPL->removeAttributeNode(((QDomAttrPrivate*)oldAttr.impl))); } /*! Returns a QDomNodeList containing all descendants of this element named \a tagname encountered during a preorder traversal of the element subtree with this element as its root. The order of the elements in the returned list is the order they are encountered during the preorder traversal. \sa elementsByTagNameNS(), QDomDocument::elementsByTagName() */ QDomNodeList QDomElement::elementsByTagName(const QString& tagname) const { return QDomNodeList(new QDomNodeListPrivate(impl, tagname)); } /*! Returns \c true if this element has an attribute called \a name; otherwise returns \c false. \b{Note:} This function does not take the presence of namespaces into account. As a result, the specified name will be tested against fully-qualified attribute names that include any namespace prefixes that may be present. Use hasAttributeNS() to explicitly test for attributes with specific namespaces and names. */ bool QDomElement::hasAttribute(const QString& name) const { if (!impl) return false; return IMPL->hasAttribute(name); } /*! Returns the attribute with the local name \a localName and the namespace URI \a nsURI. If the attribute does not exist \a defValue is returned. \sa setAttributeNS(), attributeNodeNS(), setAttributeNodeNS(), attribute() */ QString QDomElement::attributeNS(const QString nsURI, const QString& localName, const QString& defValue) const { if (!impl) return defValue; return IMPL->attributeNS(nsURI, localName, defValue); } /*! Adds an attribute with the qualified name \a qName and the namespace URI \a nsURI with the value \a value. If an attribute with the same local name and namespace URI exists, its prefix is replaced by the prefix of \a qName and its value is repaced by \a value. Although \a qName is the qualified name, the local name is used to decide if an existing attribute's value should be replaced. \sa attributeNS(), setAttributeNodeNS(), setAttribute() */ void QDomElement::setAttributeNS(const QString nsURI, const QString& qName, const QString& value) { if (!impl) return; IMPL->setAttributeNS(nsURI, qName, value); } /*! \fn void QDomElement::setAttributeNS(const QString nsURI, const QString& qName, int value) \overload */ /*! \fn void QDomElement::setAttributeNS(const QString nsURI, const QString& qName, uint value) \overload */ /*! \overload */ void QDomElement::setAttributeNS(const QString nsURI, const QString& qName, qlonglong value) { if (!impl) return; QString x; x.setNum(value); IMPL->setAttributeNS(nsURI, qName, x); } /*! \overload */ void QDomElement::setAttributeNS(const QString nsURI, const QString& qName, qulonglong value) { if (!impl) return; QString x; x.setNum(value); IMPL->setAttributeNS(nsURI, qName, x); } /*! \overload */ void QDomElement::setAttributeNS(const QString nsURI, const QString& qName, double value) { if (!impl) return; QString x; x.setNum(value); IMPL->setAttributeNS(nsURI, qName, x); } /*! Removes the attribute with the local name \a localName and the namespace URI \a nsURI from this element. \sa setAttributeNS(), attributeNS(), removeAttribute() */ void QDomElement::removeAttributeNS(const QString& nsURI, const QString& localName) { if (!impl) return; QDomNodePrivate *n = IMPL->attributeNodeNS(nsURI, localName); if (!n) return; IMPL->removeAttribute(n->nodeName()); } /*! Returns the QDomAttr object that corresponds to the attribute with the local name \a localName and the namespace URI \a nsURI. If no such attribute exists a \l{QDomNode::isNull()}{null attribute} is returned. \sa setAttributeNode(), attribute(), setAttribute() */ QDomAttr QDomElement::attributeNodeNS(const QString& nsURI, const QString& localName) { if (!impl) return QDomAttr(); return QDomAttr(IMPL->attributeNodeNS(nsURI, localName)); } /*! Adds the attribute \a newAttr to this element. If the element has another attribute that has the same local name and namespace URI as \a newAttr, this function replaces that attribute and returns it; otherwise the function returns a \l{QDomNode::isNull()}{null attribute}. \sa attributeNodeNS(), setAttributeNS(), setAttributeNode() */ QDomAttr QDomElement::setAttributeNodeNS(const QDomAttr& newAttr) { if (!impl) return QDomAttr(); return QDomAttr(IMPL->setAttributeNodeNS(((QDomAttrPrivate*)newAttr.impl))); } /*! Returns a QDomNodeList containing all descendants of this element with local name \a localName and namespace URI \a nsURI encountered during a preorder traversal of the element subtree with this element as its root. The order of the elements in the returned list is the order they are encountered during the preorder traversal. \sa elementsByTagName(), QDomDocument::elementsByTagNameNS() */ QDomNodeList QDomElement::elementsByTagNameNS(const QString& nsURI, const QString& localName) const { return QDomNodeList(new QDomNodeListPrivate(impl, nsURI, localName)); } /*! Returns \c true if this element has an attribute with the local name \a localName and the namespace URI \a nsURI; otherwise returns false. */ bool QDomElement::hasAttributeNS(const QString& nsURI, const QString& localName) const { if (!impl) return false; return IMPL->hasAttributeNS(nsURI, localName); } /*! Returns the element's text or an empty string. Example: \snippet code/src_xml_dom_qdom.cpp 13 The function text() of the QDomElement for the \c{

} tag, will return the following text: \snippet code/src_xml_dom_qdom.cpp 14 Comments are ignored by this function. It only evaluates QDomText and QDomCDATASection objects. */ QString QDomElement::text() const { if (!impl) return QString(); return IMPL->text(); } #undef IMPL /************************************************************** * * QDomTextPrivate * **************************************************************/ QDomTextPrivate::QDomTextPrivate(QDomDocumentPrivate* d, QDomNodePrivate* parent, const QString& val) : QDomCharacterDataPrivate(d, parent, val) { name = QLatin1String("#text"); } QDomTextPrivate::QDomTextPrivate(QDomTextPrivate* n, bool deep) : QDomCharacterDataPrivate(n, deep) { } QDomNodePrivate* QDomTextPrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomTextPrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } QDomTextPrivate* QDomTextPrivate::splitText(int offset) { if (!parent()) { qWarning("QDomText::splitText The node has no parent. So I can not split"); return 0; } QDomTextPrivate* t = new QDomTextPrivate(ownerDocument(), 0, value.mid(offset)); value.truncate(offset); parent()->insertAfter(t, this); return t; } void QDomTextPrivate::save(QTextStream& s, int, int) const { QDomTextPrivate *that = const_cast(this); s << encodeText(value, s, !(that->parent() && that->parent()->isElement()), false, true); } /************************************************************** * * QDomText * **************************************************************/ #define IMPL ((QDomTextPrivate*)impl) /*! \class QDomText \reentrant \brief The QDomText class represents text data in the parsed XML document. \inmodule QtXml \ingroup xml-tools You can split the text in a QDomText object over two QDomText objecs with splitText(). For further information about the Document Object Model see \l{http://www.w3.org/TR/REC-DOM-Level-1/}{Level 1} and \l{http://www.w3.org/TR/DOM-Level-2-Core/}{Level 2 Core}. For a more general introduction of the DOM implementation see the QDomDocument documentation. */ /*! Constructs an empty QDomText object. To construct a QDomText with content, use QDomDocument::createTextNode(). */ QDomText::QDomText() : QDomCharacterData() { } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomText::QDomText(const QDomText& x) : QDomCharacterData(x) { } QDomText::QDomText(QDomTextPrivate* n) : QDomCharacterData(n) { } /*! Assigns \a x to this DOM text. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomText& QDomText::operator= (const QDomText& x) { return (QDomText&) QDomNode::operator=(x); } /*! \fn QDomNode::NodeType QDomText::nodeType() const Returns \c TextNode. */ /*! Splits this DOM text object into two QDomText objects. This object keeps its first \a offset characters and the second (newly created) object is inserted into the document tree after this object with the remaining characters. The function returns the newly created object. \sa QDomNode::normalize() */ QDomText QDomText::splitText(int offset) { if (!impl) return QDomText(); return QDomText(IMPL->splitText(offset)); } #undef IMPL /************************************************************** * * QDomCommentPrivate * **************************************************************/ QDomCommentPrivate::QDomCommentPrivate(QDomDocumentPrivate* d, QDomNodePrivate* parent, const QString& val) : QDomCharacterDataPrivate(d, parent, val) { name = QLatin1String("#comment"); } QDomCommentPrivate::QDomCommentPrivate(QDomCommentPrivate* n, bool deep) : QDomCharacterDataPrivate(n, deep) { } QDomNodePrivate* QDomCommentPrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomCommentPrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } void QDomCommentPrivate::save(QTextStream& s, int depth, int indent) const { /* We don't output whitespace if we would pollute a text node. */ if (!(prev && prev->isText())) s << QString(indent < 1 ? 0 : depth * indent, QLatin1Char(' ')); s << " s << "-->"; if (!(next && next->isText())) s << endl; } /************************************************************** * * QDomComment * **************************************************************/ /*! \class QDomComment \reentrant \brief The QDomComment class represents an XML comment. \inmodule QtXml \ingroup xml-tools A comment in the parsed XML such as this: \snippet code/src_xml_dom_qdom.cpp 15 is represented by QDomComment objects in the parsed Dom tree. For further information about the Document Object Model see \l{W3C DOM Level 1}{Level 1} and \l{W3C DOM Level 2}{Level 2 Core}. For a more general introduction of the DOM implementation see the QDomDocument documentation. */ /*! Constructs an empty comment. To construct a comment with content, use the QDomDocument::createComment() function. */ QDomComment::QDomComment() : QDomCharacterData() { } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomComment::QDomComment(const QDomComment& x) : QDomCharacterData(x) { } QDomComment::QDomComment(QDomCommentPrivate* n) : QDomCharacterData(n) { } /*! Assigns \a x to this DOM comment. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomComment& QDomComment::operator= (const QDomComment& x) { return (QDomComment&) QDomNode::operator=(x); } /*! \fn QDomNode::NodeType QDomComment::nodeType() const Returns \c CommentNode. */ /************************************************************** * * QDomCDATASectionPrivate * **************************************************************/ QDomCDATASectionPrivate::QDomCDATASectionPrivate(QDomDocumentPrivate* d, QDomNodePrivate* parent, const QString& val) : QDomTextPrivate(d, parent, val) { name = QLatin1String("#cdata-section"); } QDomCDATASectionPrivate::QDomCDATASectionPrivate(QDomCDATASectionPrivate* n, bool deep) : QDomTextPrivate(n, deep) { } QDomNodePrivate* QDomCDATASectionPrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomCDATASectionPrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } void QDomCDATASectionPrivate::save(QTextStream& s, int, int) const { // ### How do we escape "]]>" ? // "]]>" is not allowed; so there should be none in value anyway s << ""; } /************************************************************** * * QDomCDATASection * **************************************************************/ /*! \class QDomCDATASection \reentrant \brief The QDomCDATASection class represents an XML CDATA section. \inmodule QtXml \ingroup xml-tools CDATA sections are used to escape blocks of text containing characters that would otherwise be regarded as markup. The only delimiter that is recognized in a CDATA section is the "]]>" string that terminates the CDATA section. CDATA sections cannot be nested. Their primary purpose is for including material such as XML fragments, without needing to escape all the delimiters. Adjacent QDomCDATASection nodes are not merged by the QDomNode::normalize() function. For further information about the Document Object Model see \l{http://www.w3.org/TR/REC-DOM-Level-1/} and \l{http://www.w3.org/TR/DOM-Level-2-Core/}. For a more general introduction of the DOM implementation see the QDomDocument documentation. */ /*! Constructs an empty CDATA section. To create a CDATA section with content, use the QDomDocument::createCDATASection() function. */ QDomCDATASection::QDomCDATASection() : QDomText() { } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomCDATASection::QDomCDATASection(const QDomCDATASection& x) : QDomText(x) { } QDomCDATASection::QDomCDATASection(QDomCDATASectionPrivate* n) : QDomText(n) { } /*! Assigns \a x to this CDATA section. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomCDATASection& QDomCDATASection::operator= (const QDomCDATASection& x) { return (QDomCDATASection&) QDomNode::operator=(x); } /*! \fn QDomNode::NodeType QDomCDATASection::nodeType() const Returns \c CDATASection. */ /************************************************************** * * QDomNotationPrivate * **************************************************************/ QDomNotationPrivate::QDomNotationPrivate(QDomDocumentPrivate* d, QDomNodePrivate* parent, const QString& aname, const QString& pub, const QString& sys) : QDomNodePrivate(d, parent) { name = aname; m_pub = pub; m_sys = sys; } QDomNotationPrivate::QDomNotationPrivate(QDomNotationPrivate* n, bool deep) : QDomNodePrivate(n, deep) { m_sys = n->m_sys; m_pub = n->m_pub; } QDomNodePrivate* QDomNotationPrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomNotationPrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } void QDomNotationPrivate::save(QTextStream& s, int, int) const { s << "' << endl; } /************************************************************** * * QDomNotation * **************************************************************/ #define IMPL ((QDomNotationPrivate*)impl) /*! \class QDomNotation \reentrant \brief The QDomNotation class represents an XML notation. \inmodule QtXml \ingroup xml-tools A notation either declares, by name, the format of an unparsed entity (see section 4.7 of the XML 1.0 specification), or is used for formal declaration of processing instruction targets (see section 2.6 of the XML 1.0 specification). DOM does not support editing notation nodes; they are therefore read-only. A notation node does not have any parent. You can retrieve the publicId() and systemId() from a notation node. For further information about the Document Object Model see \l{http://www.w3.org/TR/REC-DOM-Level-1/}{Level 1} and \l{http://www.w3.org/TR/DOM-Level-2-Core/}{Level 2 Core}. For a more general introduction of the DOM implementation see the QDomDocument documentation. */ /*! Constructor. */ QDomNotation::QDomNotation() : QDomNode() { } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomNotation::QDomNotation(const QDomNotation& x) : QDomNode(x) { } QDomNotation::QDomNotation(QDomNotationPrivate* n) : QDomNode(n) { } /*! Assigns \a x to this DOM notation. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomNotation& QDomNotation::operator= (const QDomNotation& x) { return (QDomNotation&) QDomNode::operator=(x); } /*! \fn QDomNode::NodeType QDomNotation::nodeType() const Returns \c NotationNode. */ /*! Returns the public identifier of this notation. */ QString QDomNotation::publicId() const { if (!impl) return QString(); return IMPL->m_pub; } /*! Returns the system identifier of this notation. */ QString QDomNotation::systemId() const { if (!impl) return QString(); return IMPL->m_sys; } #undef IMPL /************************************************************** * * QDomEntityPrivate * **************************************************************/ QDomEntityPrivate::QDomEntityPrivate(QDomDocumentPrivate* d, QDomNodePrivate* parent, const QString& aname, const QString& pub, const QString& sys, const QString& notation) : QDomNodePrivate(d, parent) { name = aname; m_pub = pub; m_sys = sys; m_notationName = notation; } QDomEntityPrivate::QDomEntityPrivate(QDomEntityPrivate* n, bool deep) : QDomNodePrivate(n, deep) { m_sys = n->m_sys; m_pub = n->m_pub; m_notationName = n->m_notationName; } QDomNodePrivate* QDomEntityPrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomEntityPrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } /* Encode an entity value upon saving. */ static QByteArray encodeEntity(const QByteArray& str) { QByteArray tmp(str); int len = tmp.size(); int i = 0; const char* d = tmp.constData(); while (i < len) { if (d[i] == '%'){ tmp.replace(i, 1, "<"); d = tmp.constData(); len += 4; i += 5; } else if (d[i] == '"') { tmp.replace(i, 1, """); d = tmp.constData(); len += 4; i += 5; } else if (d[i] == '&' && i + 1 < len && d[i+1] == '#') { // Don't encode < or " or &custom;. // Only encode character references tmp.replace(i, 1, "&"); d = tmp.constData(); len += 4; i += 5; } else { ++i; } } return tmp; } void QDomEntityPrivate::save(QTextStream& s, int, int) const { QString _name = name; if (_name.startsWith(QLatin1Char('%'))) _name = QLatin1String("% ") + _name.mid(1); if (m_sys.isNull() && m_pub.isNull()) { s << "" << endl; } else { s << "' << endl; } } /************************************************************** * * QDomEntity * **************************************************************/ #define IMPL ((QDomEntityPrivate*)impl) /*! \class QDomEntity \reentrant \brief The QDomEntity class represents an XML entity. \inmodule QtXml \ingroup xml-tools This class represents an entity in an XML document, either parsed or unparsed. Note that this models the entity itself not the entity declaration. DOM does not support editing entity nodes; if a user wants to make changes to the contents of an entity, every related QDomEntityReference node must be replaced in the DOM tree by a clone of the entity's contents, and then the desired changes must be made to each of the clones instead. All the descendants of an entity node are read-only. An entity node does not have any parent. You can access the entity's publicId(), systemId() and notationName() when available. For further information about the Document Object Model see \l{http://www.w3.org/TR/REC-DOM-Level-1/}{Level 1} and \l{http://www.w3.org/TR/DOM-Level-2-Core/}{Level 2 Core}. For a more general introduction of the DOM implementation see the QDomDocument documentation. */ /*! Constructs an empty entity. */ QDomEntity::QDomEntity() : QDomNode() { } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomEntity::QDomEntity(const QDomEntity& x) : QDomNode(x) { } QDomEntity::QDomEntity(QDomEntityPrivate* n) : QDomNode(n) { } /*! Assigns \a x to this DOM entity. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomEntity& QDomEntity::operator= (const QDomEntity& x) { return (QDomEntity&) QDomNode::operator=(x); } /*! \fn QDomNode::NodeType QDomEntity::nodeType() const Returns \c EntityNode. */ /*! Returns the public identifier associated with this entity. If the public identifier was not specified an empty string is returned. */ QString QDomEntity::publicId() const { if (!impl) return QString(); return IMPL->m_pub; } /*! Returns the system identifier associated with this entity. If the system identifier was not specified an empty string is returned. */ QString QDomEntity::systemId() const { if (!impl) return QString(); return IMPL->m_sys; } /*! For unparsed entities this function returns the name of the notation for the entity. For parsed entities this function returns an empty string. */ QString QDomEntity::notationName() const { if (!impl) return QString(); return IMPL->m_notationName; } #undef IMPL /************************************************************** * * QDomEntityReferencePrivate * **************************************************************/ QDomEntityReferencePrivate::QDomEntityReferencePrivate(QDomDocumentPrivate* d, QDomNodePrivate* parent, const QString& aname) : QDomNodePrivate(d, parent) { name = aname; } QDomEntityReferencePrivate::QDomEntityReferencePrivate(QDomNodePrivate* n, bool deep) : QDomNodePrivate(n, deep) { } QDomNodePrivate* QDomEntityReferencePrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomEntityReferencePrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } void QDomEntityReferencePrivate::save(QTextStream& s, int, int) const { s << '&' << name << ';'; } /************************************************************** * * QDomEntityReference * **************************************************************/ /*! \class QDomEntityReference \reentrant \brief The QDomEntityReference class represents an XML entity reference. \inmodule QtXml \ingroup xml-tools A QDomEntityReference object may be inserted into the DOM tree when an entity reference is in the source document, or when the user wishes to insert an entity reference. Note that character references and references to predefined entities are expanded by the XML processor so that characters are represented by their Unicode equivalent rather than by an entity reference. Moreover, the XML processor may completely expand references to entities while building the DOM tree, instead of providing QDomEntityReference objects. If it does provide such objects, then for a given entity reference node, it may be that there is no entity node representing the referenced entity; but if such an entity exists, then the child list of the entity reference node is the same as that of the entity node. As with the entity node, all descendants of the entity reference are read-only. For further information about the Document Object Model see \l{http://www.w3.org/TR/REC-DOM-Level-1/}{Level 1} and \l{http://www.w3.org/TR/DOM-Level-2-Core/}{Level 2 Core}. For a more general introduction of the DOM implementation see the QDomDocument documentation. */ /*! Constructs an empty entity reference. Use QDomDocument::createEntityReference() to create a entity reference with content. */ QDomEntityReference::QDomEntityReference() : QDomNode() { } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomEntityReference::QDomEntityReference(const QDomEntityReference& x) : QDomNode(x) { } QDomEntityReference::QDomEntityReference(QDomEntityReferencePrivate* n) : QDomNode(n) { } /*! Assigns \a x to this entity reference. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomEntityReference& QDomEntityReference::operator= (const QDomEntityReference& x) { return (QDomEntityReference&) QDomNode::operator=(x); } /*! \fn QDomNode::NodeType QDomEntityReference::nodeType() const Returns \c EntityReference. */ /************************************************************** * * QDomProcessingInstructionPrivate * **************************************************************/ QDomProcessingInstructionPrivate::QDomProcessingInstructionPrivate(QDomDocumentPrivate* d, QDomNodePrivate* parent, const QString& target, const QString& data) : QDomNodePrivate(d, parent) { name = target; value = data; } QDomProcessingInstructionPrivate::QDomProcessingInstructionPrivate(QDomProcessingInstructionPrivate* n, bool deep) : QDomNodePrivate(n, deep) { } QDomNodePrivate* QDomProcessingInstructionPrivate::cloneNode(bool deep) { QDomNodePrivate* p = new QDomProcessingInstructionPrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } void QDomProcessingInstructionPrivate::save(QTextStream& s, int, int) const { s << "" << endl; } /************************************************************** * * QDomProcessingInstruction * **************************************************************/ /*! \class QDomProcessingInstruction \reentrant \brief The QDomProcessingInstruction class represents an XML processing instruction. \inmodule QtXml \ingroup xml-tools Processing instructions are used in XML to keep processor-specific information in the text of the document. The XML declaration that appears at the top of an XML document, typically \tt{}, is treated by QDom as a processing instruction. This is unfortunate, since the XML declaration is not a processing instruction; among other differences, it cannot be inserted into a document anywhere but on the first line. Do not use this function to create an xml declaration, since although it has the same syntax as a processing instruction, it isn't, and might not be treated by QDom as such. The content of the processing instruction is retrieved with data() and set with setData(). The processing instruction's target is retrieved with target(). For further information about the Document Object Model see \l{http://www.w3.org/TR/REC-DOM-Level-1/}{Level 1} and \l{http://www.w3.org/TR/DOM-Level-2-Core/}{Level 2 Core}. For a more general introduction of the DOM implementation see the QDomDocument documentation. */ /*! Constructs an empty processing instruction. Use QDomDocument::createProcessingInstruction() to create a processing instruction with content. */ QDomProcessingInstruction::QDomProcessingInstruction() : QDomNode() { } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomProcessingInstruction::QDomProcessingInstruction(const QDomProcessingInstruction& x) : QDomNode(x) { } QDomProcessingInstruction::QDomProcessingInstruction(QDomProcessingInstructionPrivate* n) : QDomNode(n) { } /*! Assigns \a x to this processing instruction. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomProcessingInstruction& QDomProcessingInstruction::operator= (const QDomProcessingInstruction& x) { return (QDomProcessingInstruction&) QDomNode::operator=(x); } /*! \fn QDomNode::NodeType QDomProcessingInstruction::nodeType() const Returns \c ProcessingInstructionNode. */ /*! Returns the target of this processing instruction. \sa data() */ QString QDomProcessingInstruction::target() const { if (!impl) return QString(); return impl->nodeName(); } /*! Returns the content of this processing instruction. \sa setData(), target() */ QString QDomProcessingInstruction::data() const { if (!impl) return QString(); return impl->nodeValue(); } /*! Sets the data contained in the processing instruction to \a d. \sa data() */ void QDomProcessingInstruction::setData(const QString& d) { if (!impl) return; impl->setNodeValue(d); } /************************************************************** * * QDomDocumentPrivate * **************************************************************/ QDomDocumentPrivate::QDomDocumentPrivate() : QDomNodePrivate(0), impl(new QDomImplementationPrivate), nodeListTime(1) { type = new QDomDocumentTypePrivate(this, this); type->ref.deref(); name = QLatin1String("#document"); } QDomDocumentPrivate::QDomDocumentPrivate(const QString& aname) : QDomNodePrivate(0), impl(new QDomImplementationPrivate), nodeListTime(1) { type = new QDomDocumentTypePrivate(this, this); type->ref.deref(); type->name = aname; name = QLatin1String("#document"); } QDomDocumentPrivate::QDomDocumentPrivate(QDomDocumentTypePrivate* dt) : QDomNodePrivate(0), impl(new QDomImplementationPrivate), nodeListTime(1) { if (dt != 0) { type = dt; } else { type = new QDomDocumentTypePrivate(this, this); type->ref.deref(); } name = QLatin1String("#document"); } QDomDocumentPrivate::QDomDocumentPrivate(QDomDocumentPrivate* n, bool deep) : QDomNodePrivate(n, deep), impl(n->impl->clone()), nodeListTime(1) { type = static_cast(n->type->cloneNode()); type->setParent(this); } QDomDocumentPrivate::~QDomDocumentPrivate() { } void QDomDocumentPrivate::clear() { impl.reset(); type.reset(); QDomNodePrivate::clear(); } static void initializeReader(QXmlSimpleReader &reader, bool namespaceProcessing) { reader.setFeature(QLatin1String("http://xml.org/sax/features/namespaces"), namespaceProcessing); reader.setFeature(QLatin1String("http://xml.org/sax/features/namespace-prefixes"), !namespaceProcessing); reader.setFeature(QLatin1String("http://trolltech.com/xml/features/report-whitespace-only-CharData"), false); // Shouldn't change in Qt 4 } bool QDomDocumentPrivate::setContent(QXmlInputSource *source, bool namespaceProcessing, QString *errorMsg, int *errorLine, int *errorColumn) { QXmlSimpleReader reader; initializeReader(reader, namespaceProcessing); return setContent(source, &reader, &reader, errorMsg, errorLine, errorColumn); } bool QDomDocumentPrivate::setContent(QXmlInputSource *source, QXmlReader *reader, QXmlSimpleReader *simpleReader, QString *errorMsg, int *errorLine, int *errorColumn) { clear(); impl = new QDomImplementationPrivate; type = new QDomDocumentTypePrivate(this, this); type->ref.deref(); bool namespaceProcessing = reader->feature(QLatin1String("http://xml.org/sax/features/namespaces")) && !reader->feature(QLatin1String("http://xml.org/sax/features/namespace-prefixes")); QDomHandler hnd(this, simpleReader, namespaceProcessing); reader->setContentHandler(&hnd); reader->setErrorHandler(&hnd); reader->setLexicalHandler(&hnd); reader->setDeclHandler(&hnd); reader->setDTDHandler(&hnd); if (!reader->parse(source)) { if (errorMsg) *errorMsg = hnd.errorMsg; if (errorLine) *errorLine = hnd.errorLine; if (errorColumn) *errorColumn = hnd.errorColumn; return false; } return true; } QDomNodePrivate* QDomDocumentPrivate::cloneNode(bool deep) { QDomNodePrivate *p = new QDomDocumentPrivate(this, deep); // We are not interested in this node p->ref.deref(); return p; } QDomElementPrivate* QDomDocumentPrivate::documentElement() { QDomNodePrivate *p = first; while (p && !p->isElement()) p = p->next; return static_cast(p); } QDomElementPrivate* QDomDocumentPrivate::createElement(const QString &tagName) { bool ok; QString fixedName = fixedXmlName(tagName, &ok); if (!ok) return 0; QDomElementPrivate *e = new QDomElementPrivate(this, 0, fixedName); e->ref.deref(); return e; } QDomElementPrivate* QDomDocumentPrivate::createElementNS(const QString &nsURI, const QString &qName) { bool ok; QString fixedName = fixedXmlName(qName, &ok, true); if (!ok) return 0; QDomElementPrivate *e = new QDomElementPrivate(this, 0, nsURI, fixedName); e->ref.deref(); return e; } QDomDocumentFragmentPrivate* QDomDocumentPrivate::createDocumentFragment() { QDomDocumentFragmentPrivate *f = new QDomDocumentFragmentPrivate(this, (QDomNodePrivate*)0); f->ref.deref(); return f; } QDomTextPrivate* QDomDocumentPrivate::createTextNode(const QString &data) { bool ok; QString fixedData = fixedCharData(data, &ok); if (!ok) return 0; QDomTextPrivate *t = new QDomTextPrivate(this, 0, fixedData); t->ref.deref(); return t; } QDomCommentPrivate* QDomDocumentPrivate::createComment(const QString &data) { bool ok; QString fixedData = fixedComment(data, &ok); if (!ok) return 0; QDomCommentPrivate *c = new QDomCommentPrivate(this, 0, fixedData); c->ref.deref(); return c; } QDomCDATASectionPrivate* QDomDocumentPrivate::createCDATASection(const QString &data) { bool ok; QString fixedData = fixedCDataSection(data, &ok); if (!ok) return 0; QDomCDATASectionPrivate *c = new QDomCDATASectionPrivate(this, 0, fixedData); c->ref.deref(); return c; } QDomProcessingInstructionPrivate* QDomDocumentPrivate::createProcessingInstruction(const QString &target, const QString &data) { bool ok; QString fixedData = fixedPIData(data, &ok); if (!ok) return 0; // [17] PITarget ::= Name - (('X' | 'x') ('M' | 'm') ('L' | 'l')) QString fixedTarget = fixedXmlName(target, &ok); if (!ok) return 0; QDomProcessingInstructionPrivate *p = new QDomProcessingInstructionPrivate(this, 0, fixedTarget, fixedData); p->ref.deref(); return p; } QDomAttrPrivate* QDomDocumentPrivate::createAttribute(const QString &aname) { bool ok; QString fixedName = fixedXmlName(aname, &ok); if (!ok) return 0; QDomAttrPrivate *a = new QDomAttrPrivate(this, 0, fixedName); a->ref.deref(); return a; } QDomAttrPrivate* QDomDocumentPrivate::createAttributeNS(const QString &nsURI, const QString &qName) { bool ok; QString fixedName = fixedXmlName(qName, &ok, true); if (!ok) return 0; QDomAttrPrivate *a = new QDomAttrPrivate(this, 0, nsURI, fixedName); a->ref.deref(); return a; } QDomEntityReferencePrivate* QDomDocumentPrivate::createEntityReference(const QString &aname) { bool ok; QString fixedName = fixedXmlName(aname, &ok); if (!ok) return 0; QDomEntityReferencePrivate *e = new QDomEntityReferencePrivate(this, 0, fixedName); e->ref.deref(); return e; } QDomNodePrivate* QDomDocumentPrivate::importNode(QDomNodePrivate *importedNode, bool deep) { QDomNodePrivate *node = 0; switch (importedNode->nodeType()) { case QDomNode::AttributeNode: node = new QDomAttrPrivate((QDomAttrPrivate*)importedNode, true); break; case QDomNode::DocumentFragmentNode: node = new QDomDocumentFragmentPrivate((QDomDocumentFragmentPrivate*)importedNode, deep); break; case QDomNode::ElementNode: node = new QDomElementPrivate((QDomElementPrivate*)importedNode, deep); break; case QDomNode::EntityNode: node = new QDomEntityPrivate((QDomEntityPrivate*)importedNode, deep); break; case QDomNode::EntityReferenceNode: node = new QDomEntityReferencePrivate((QDomEntityReferencePrivate*)importedNode, false); break; case QDomNode::NotationNode: node = new QDomNotationPrivate((QDomNotationPrivate*)importedNode, deep); break; case QDomNode::ProcessingInstructionNode: node = new QDomProcessingInstructionPrivate((QDomProcessingInstructionPrivate*)importedNode, deep); break; case QDomNode::TextNode: node = new QDomTextPrivate((QDomTextPrivate*)importedNode, deep); break; case QDomNode::CDATASectionNode: node = new QDomCDATASectionPrivate((QDomCDATASectionPrivate*)importedNode, deep); break; case QDomNode::CommentNode: node = new QDomCommentPrivate((QDomCommentPrivate*)importedNode, deep); break; default: break; } if (node) { node->setOwnerDocument(this); // The QDomNode constructor increases the refcount, so deref first to // keep refcount balanced. node->ref.deref(); } return node; } void QDomDocumentPrivate::saveDocument(QTextStream& s, const int indent, QDomNode::EncodingPolicy encUsed) const { const QDomNodePrivate* n = first; if(encUsed == QDomNode::EncodingFromDocument) { #ifndef QT_NO_TEXTCODEC const QDomNodePrivate* n = first; QTextCodec *codec = 0; if (n && n->isProcessingInstruction() && n->nodeName() == QLatin1String("xml")) { // we have an XML declaration QString data = n->nodeValue(); QRegExp encoding(QString::fromLatin1("encoding\\s*=\\s*((\"([^\"]*)\")|('([^']*)'))")); encoding.indexIn(data); QString enc = encoding.cap(3); if (enc.isEmpty()) enc = encoding.cap(5); if (!enc.isEmpty()) codec = QTextCodec::codecForName(enc.toLatin1().data()); } if (!codec) codec = QTextCodec::codecForName("UTF-8"); if (codec) s.setCodec(codec); #endif bool doc = false; while (n) { if (!doc && !(n->isProcessingInstruction() && n->nodeName() == QLatin1String("xml"))) { // save doctype after XML declaration type->save(s, 0, indent); doc = true; } n->save(s, 0, indent); n = n->next; } } else { // Write out the XML declaration. #ifdef QT_NO_TEXTCODEC const QLatin1String codecName("iso-8859-1"); #else const QTextCodec *const codec = s.codec(); Q_ASSERT_X(codec, "QDomNode::save()", "A codec must be specified in the text stream."); const QByteArray codecName = codec->name(); #endif s << "\n"; // Skip the first processing instruction by name "xml", if any such exists. const QDomNodePrivate* startNode = n; // First, we try to find the PI and sets the startNode to the one appearing after it. while (n) { if(n->isProcessingInstruction() && n->nodeName() == QLatin1String("xml")) { startNode = n->next; break; } else n = n->next; } // Now we serialize all the nodes after the faked XML declaration(the PI). while(startNode) { startNode->save(s, 0, indent); startNode = startNode->next; } } } /************************************************************** * * QDomDocument * **************************************************************/ #define IMPL ((QDomDocumentPrivate*)impl) /*! \class QDomDocument \reentrant \brief The QDomDocument class represents an XML document. \inmodule QtXml \ingroup xml-tools The QDomDocument class represents the entire XML document. Conceptually, it is the root of the document tree, and provides the primary access to the document's data. Since elements, text nodes, comments, processing instructions, etc., cannot exist outside the context of a document, the document class also contains the factory functions needed to create these objects. The node objects created have an ownerDocument() function which associates them with the document within whose context they were created. The DOM classes that will be used most often are QDomNode, QDomDocument, QDomElement and QDomText. The parsed XML is represented internally by a tree of objects that can be accessed using the various QDom classes. All QDom classes only \e reference objects in the internal tree. The internal objects in the DOM tree will get deleted once the last QDom object referencing them or the QDomDocument itself is deleted. Creation of elements, text nodes, etc. is done using the various factory functions provided in this class. Using the default constructors of the QDom classes will only result in empty objects that cannot be manipulated or inserted into the Document. The QDomDocument class has several functions for creating document data, for example, createElement(), createTextNode(), createComment(), createCDATASection(), createProcessingInstruction(), createAttribute() and createEntityReference(). Some of these functions have versions that support namespaces, i.e. createElementNS() and createAttributeNS(). The createDocumentFragment() function is used to hold parts of the document; this is useful for manipulating for complex documents. The entire content of the document is set with setContent(). This function parses the string it is passed as an XML document and creates the DOM tree that represents the document. The root element is available using documentElement(). The textual representation of the document can be obtained using toString(). \note The DOM tree might end up reserving a lot of memory if the XML document is big. For such documents, the QXmlStreamReader or the QXmlQuery classes might be better solutions. It is possible to insert a node from another document into the document using importNode(). You can obtain a list of all the elements that have a particular tag with elementsByTagName() or with elementsByTagNameNS(). The QDom classes are typically used as follows: \snippet code/src_xml_dom_qdom.cpp 16 Once \c doc and \c elem go out of scope, the whole internal tree representing the XML document is deleted. To create a document using DOM use code like this: \snippet code/src_xml_dom_qdom.cpp 17 For further information about the Document Object Model see the Document Object Model (DOM) \l{http://www.w3.org/TR/REC-DOM-Level-1/}{Level 1} and \l{http://www.w3.org/TR/DOM-Level-2-Core/}{Level 2 Core} Specifications. \sa {DOM Bookmarks Example}, {Simple DOM Model Example} */ /*! Constructs an empty document. */ QDomDocument::QDomDocument() { impl = 0; } /*! Creates a document and sets the name of the document type to \a name. */ QDomDocument::QDomDocument(const QString& name) { // We take over ownership impl = new QDomDocumentPrivate(name); } /*! Creates a document with the document type \a doctype. \sa QDomImplementation::createDocumentType() */ QDomDocument::QDomDocument(const QDomDocumentType& doctype) { impl = new QDomDocumentPrivate((QDomDocumentTypePrivate*)(doctype.impl)); } /*! Constructs a copy of \a x. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomDocument::QDomDocument(const QDomDocument& x) : QDomNode(x) { } QDomDocument::QDomDocument(QDomDocumentPrivate* x) : QDomNode(x) { } /*! Assigns \a x to this DOM document. The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode(). */ QDomDocument& QDomDocument::operator= (const QDomDocument& x) { return (QDomDocument&) QDomNode::operator=(x); } /*! Destroys the object and frees its resources. */ QDomDocument::~QDomDocument() { } /*! \overload This function reads the XML document from the string \a text, returning true if the content was successfully parsed; otherwise returns \c false. Since \a text is already a Unicode string, no encoding detection is done. */ bool QDomDocument::setContent(const QString& text, bool namespaceProcessing, QString *errorMsg, int *errorLine, int *errorColumn) { if (!impl) impl = new QDomDocumentPrivate(); QXmlInputSource source; source.setData(text); return IMPL->setContent(&source, namespaceProcessing, errorMsg, errorLine, errorColumn); } /*! \nonreentrant This function parses the XML document from the byte array \a data and sets it as the content of the document. It tries to detect the encoding of the document as required by the XML specification. If \a namespaceProcessing is true, the parser recognizes namespaces in the XML file and sets the prefix name, local name and namespace URI to appropriate values. If \a namespaceProcessing is false, the parser does no namespace processing when it reads the XML file. If a parse error occurs, this function returns \c false and the error message is placed in \c{*}\a{errorMsg}, the line number in \c{*}\a{errorLine} and the column number in \c{*}\a{errorColumn} (unless the associated pointer is set to 0); otherwise this function returns \c true. The various error messages are described in the QXmlParseException class documentation. Note that, if you want to display these error messages to your application's users, they will be displayed in English unless they are explicitly translated. If \a namespaceProcessing is true, the function QDomNode::prefix() returns a string for all elements and attributes. It returns an empty string if the element or attribute has no prefix. Text nodes consisting only of whitespace are stripped and won't appear in the QDomDocument. If this behavior is not desired, one can use the setContent() overload that allows a QXmlReader to be supplied. If \a namespaceProcessing is false, the functions QDomNode::prefix(), QDomNode::localName() and QDomNode::namespaceURI() return an empty string. Entity references are handled as follows: \list \li References to internal general entities and character entities occurring in the content are included. The result is a QDomText node with the references replaced by their corresponding entity values. \li References to parameter entities occurring in the internal subset are included. The result is a QDomDocumentType node which contains entity and notation declarations with the references replaced by their corresponding entity values. \li Any general parsed entity reference which is not defined in the internal subset and which occurs in the content is represented as a QDomEntityReference node. \li Any parsed entity reference which is not defined in the internal subset and which occurs outside of the content is replaced with an empty string. \li Any unparsed entity reference is replaced with an empty string. \endlist \sa QDomNode::namespaceURI(), QDomNode::localName(), QDomNode::prefix(), QString::isNull(), QString::isEmpty() */ bool QDomDocument::setContent(const QByteArray &data, bool namespaceProcessing, QString *errorMsg, int *errorLine, int *errorColumn) { if (!impl) impl = new QDomDocumentPrivate(); QBuffer buf; buf.setData(data); QXmlInputSource source(&buf); return IMPL->setContent(&source, namespaceProcessing, errorMsg, errorLine, errorColumn); } /*! \overload This function reads the XML document from the IO device \a dev, returning true if the content was successfully parsed; otherwise returns \c false. */ bool QDomDocument::setContent(QIODevice* dev, bool namespaceProcessing, QString *errorMsg, int *errorLine, int *errorColumn) { if (!impl) impl = new QDomDocumentPrivate(); QXmlInputSource source(dev); return IMPL->setContent(&source, namespaceProcessing, errorMsg, errorLine, errorColumn); } /*! \overload \since 4.5 This function reads the XML document from the QXmlInputSource \a source, returning true if the content was successfully parsed; otherwise returns \c false. */ bool QDomDocument::setContent(QXmlInputSource *source, bool namespaceProcessing, QString *errorMsg, int *errorLine, int *errorColumn ) { if (!impl) impl = new QDomDocumentPrivate(); QXmlSimpleReader reader; initializeReader(reader, namespaceProcessing); return IMPL->setContent(source, &reader, &reader, errorMsg, errorLine, errorColumn); } /*! \overload This function reads the XML document from the string \a text, returning true if the content was successfully parsed; otherwise returns \c false. Since \a text is already a Unicode string, no encoding detection is performed. No namespace processing is performed either. */ bool QDomDocument::setContent(const QString& text, QString *errorMsg, int *errorLine, int *errorColumn) { return setContent(text, false, errorMsg, errorLine, errorColumn); } /*! \overload This function reads the XML document from the byte array \a buffer, returning true if the content was successfully parsed; otherwise returns false. No namespace processing is performed. */ bool QDomDocument::setContent(const QByteArray& buffer, QString *errorMsg, int *errorLine, int *errorColumn ) { return setContent(buffer, false, errorMsg, errorLine, errorColumn); } /*! \overload This function reads the XML document from the IO device \a dev, returning true if the content was successfully parsed; otherwise returns \c false. No namespace processing is performed. */ bool QDomDocument::setContent(QIODevice* dev, QString *errorMsg, int *errorLine, int *errorColumn ) { return setContent(dev, false, errorMsg, errorLine, errorColumn); } /*! \overload This function reads the XML document from the QXmlInputSource \a source and parses it with the QXmlReader \a reader, returning true if the content was successfully parsed; otherwise returns \c false. This function doesn't change the features of the \a reader. If you want to use certain features for parsing you can use this function to set up the reader appropriately. \sa QXmlSimpleReader */ bool QDomDocument::setContent(QXmlInputSource *source, QXmlReader *reader, QString *errorMsg, int *errorLine, int *errorColumn ) { if (!impl) impl = new QDomDocumentPrivate(); return IMPL->setContent(source, reader, 0, errorMsg, errorLine, errorColumn); } /*! Converts the parsed document back to its textual representation. This function uses \a indent as the amount of space to indent subelements. If \a indent is -1, no whitespace at all is added. */ QString QDomDocument::toString(int indent) const { QString str; QTextStream s(&str, QIODevice::WriteOnly); save(s, indent); return str; } /*! Converts the parsed document back to its textual representation and returns a QByteArray containing the data encoded as UTF-8. This function uses \a indent as the amount of space to indent subelements. \sa toString() */ QByteArray QDomDocument::toByteArray(int indent) const { // ### if there is an encoding specified in the xml declaration, this // encoding declaration should be changed to utf8 return toString(indent).toUtf8(); } /*! Returns the document type of this document. */ QDomDocumentType QDomDocument::doctype() const { if (!impl) return QDomDocumentType(); return QDomDocumentType(IMPL->doctype()); } /*! Returns a QDomImplementation object. */ QDomImplementation QDomDocument::implementation() const { if (!impl) return QDomImplementation(); return QDomImplementation(IMPL->implementation()); } /*! Returns the root element of the document. */ QDomElement QDomDocument::documentElement() const { if (!impl) return QDomElement(); return QDomElement(IMPL->documentElement()); } /*! Creates a new element called \a tagName that can be inserted into the DOM tree, e.g. using QDomNode::appendChild(). If \a tagName is not a valid XML name, the behavior of this function is governed by QDomImplementation::InvalidDataPolicy. \sa createElementNS(), QDomNode::appendChild(), QDomNode::insertBefore(), QDomNode::insertAfter() */ QDomElement QDomDocument::createElement(const QString& tagName) { if (!impl) impl = new QDomDocumentPrivate(); return QDomElement(IMPL->createElement(tagName)); } /*! Creates a new document fragment, that can be used to hold parts of the document, e.g. when doing complex manipulations of the document tree. */ QDomDocumentFragment QDomDocument::createDocumentFragment() { if (!impl) impl = new QDomDocumentPrivate(); return QDomDocumentFragment(IMPL->createDocumentFragment()); } /*! Creates a text node for the string \a value that can be inserted into the document tree, e.g. using QDomNode::appendChild(). If \a value contains characters which cannot be stored as character data of an XML document (even in the form of character references), the behavior of this function is governed by QDomImplementation::InvalidDataPolicy. \sa QDomNode::appendChild(), QDomNode::insertBefore(), QDomNode::insertAfter() */ QDomText QDomDocument::createTextNode(const QString& value) { if (!impl) impl = new QDomDocumentPrivate(); return QDomText(IMPL->createTextNode(value)); } /*! Creates a new comment for the string \a value that can be inserted into the document, e.g. using QDomNode::appendChild(). If \a value contains characters which cannot be stored in an XML comment, the behavior of this function is governed by QDomImplementation::InvalidDataPolicy. \sa QDomNode::appendChild(), QDomNode::insertBefore(), QDomNode::insertAfter() */ QDomComment QDomDocument::createComment(const QString& value) { if (!impl) impl = new QDomDocumentPrivate(); return QDomComment(IMPL->createComment(value)); } /*! Creates a new CDATA section for the string \a value that can be inserted into the document, e.g. using QDomNode::appendChild(). If \a value contains characters which cannot be stored in a CDATA section, the behavior of this function is governed by QDomImplementation::InvalidDataPolicy. \sa QDomNode::appendChild(), QDomNode::insertBefore(), QDomNode::insertAfter() */ QDomCDATASection QDomDocument::createCDATASection(const QString& value) { if (!impl) impl = new QDomDocumentPrivate(); return QDomCDATASection(IMPL->createCDATASection(value)); } /*! Creates a new processing instruction that can be inserted into the document, e.g. using QDomNode::appendChild(). This function sets the target for the processing instruction to \a target and the data to \a data. If \a target is not a valid XML name, or data if contains characters which cannot appear in a processing instruction, the behavior of this function is governed by QDomImplementation::InvalidDataPolicy. \sa QDomNode::appendChild(), QDomNode::insertBefore(), QDomNode::insertAfter() */ QDomProcessingInstruction QDomDocument::createProcessingInstruction(const QString& target, const QString& data) { if (!impl) impl = new QDomDocumentPrivate(); return QDomProcessingInstruction(IMPL->createProcessingInstruction(target, data)); } /*! Creates a new attribute called \a name that can be inserted into an element, e.g. using QDomElement::setAttributeNode(). If \a name is not a valid XML name, the behavior of this function is governed by QDomImplementation::InvalidDataPolicy. \sa createAttributeNS() */ QDomAttr QDomDocument::createAttribute(const QString& name) { if (!impl) impl = new QDomDocumentPrivate(); return QDomAttr(IMPL->createAttribute(name)); } /*! Creates a new entity reference called \a name that can be inserted into the document, e.g. using QDomNode::appendChild(). If \a name is not a valid XML name, the behavior of this function is governed by QDomImplementation::InvalidDataPolicy. \sa QDomNode::appendChild(), QDomNode::insertBefore(), QDomNode::insertAfter() */ QDomEntityReference QDomDocument::createEntityReference(const QString& name) { if (!impl) impl = new QDomDocumentPrivate(); return QDomEntityReference(IMPL->createEntityReference(name)); } /*! Returns a QDomNodeList, that contains all the elements in the document with the name \a tagname. The order of the node list is the order they are encountered in a preorder traversal of the element tree. \sa elementsByTagNameNS(), QDomElement::elementsByTagName() */ QDomNodeList QDomDocument::elementsByTagName(const QString& tagname) const { return QDomNodeList(new QDomNodeListPrivate(impl, tagname)); } /*! Imports the node \a importedNode from another document to this document. \a importedNode remains in the original document; this function creates a copy that can be used within this document. This function returns the imported node that belongs to this document. The returned node has no parent. It is not possible to import QDomDocument and QDomDocumentType nodes. In those cases this function returns a \l{QDomNode::isNull()}{null node}. If \a importedNode is a \l{QDomNode::isNull()}{null node}, a null node is returned. If \a deep is true, this function imports not only the node \a importedNode but its whole subtree; if it is false, only the \a importedNode is imported. The argument \a deep has no effect on QDomAttr and QDomEntityReference nodes, since the descendants of QDomAttr nodes are always imported and those of QDomEntityReference nodes are never imported. The behavior of this function is slightly different depending on the node types: \table \header \li Node Type \li Behavior \row \li QDomAttr \li The owner element is set to 0 and the specified flag is set to true in the generated attribute. The whole subtree of \a importedNode is always imported for attribute nodes: \a deep has no effect. \row \li QDomDocument \li Document nodes cannot be imported. \row \li QDomDocumentFragment \li If \a deep is true, this function imports the whole document fragment; otherwise it only generates an empty document fragment. \row \li QDomDocumentType \li Document type nodes cannot be imported. \row \li QDomElement \li Attributes for which QDomAttr::specified() is true are also imported, other attributes are not imported. If \a deep is true, this function also imports the subtree of \a importedNode; otherwise it imports only the element node (and some attributes, see above). \row \li QDomEntity \li Entity nodes can be imported, but at the moment there is no way to use them since the document type is read-only in DOM level 2. \row \li QDomEntityReference \li Descendants of entity reference nodes are never imported: \a deep has no effect. \row \li QDomNotation \li Notation nodes can be imported, but at the moment there is no way to use them since the document type is read-only in DOM level 2. \row \li QDomProcessingInstruction \li The target and value of the processing instruction is copied to the new node. \row \li QDomText \li The text is copied to the new node. \row \li QDomCDATASection \li The text is copied to the new node. \row \li QDomComment \li The text is copied to the new node. \endtable \sa QDomElement::setAttribute(), QDomNode::insertBefore(), QDomNode::insertAfter(), QDomNode::replaceChild(), QDomNode::removeChild(), QDomNode::appendChild() */ QDomNode QDomDocument::importNode(const QDomNode& importedNode, bool deep) { if (importedNode.isNull()) return QDomNode(); if (!impl) impl = new QDomDocumentPrivate(); return QDomNode(IMPL->importNode(importedNode.impl, deep)); } /*! Creates a new element with namespace support that can be inserted into the DOM tree. The name of the element is \a qName and the namespace URI is \a nsURI. This function also sets QDomNode::prefix() and QDomNode::localName() to appropriate values (depending on \a qName). If \a qName is an empty string, returns a null element regardless of whether the invalid data policy is set. \sa createElement() */ QDomElement QDomDocument::createElementNS(const QString& nsURI, const QString& qName) { if (!impl) impl = new QDomDocumentPrivate(); return QDomElement(IMPL->createElementNS(nsURI, qName)); } /*! Creates a new attribute with namespace support that can be inserted into an element. The name of the attribute is \a qName and the namespace URI is \a nsURI. This function also sets QDomNode::prefix() and QDomNode::localName() to appropriate values (depending on \a qName). If \a qName is not a valid XML name, the behavior of this function is governed by QDomImplementation::InvalidDataPolicy. \sa createAttribute() */ QDomAttr QDomDocument::createAttributeNS(const QString& nsURI, const QString& qName) { if (!impl) impl = new QDomDocumentPrivate(); return QDomAttr(IMPL->createAttributeNS(nsURI, qName)); } /*! Returns a QDomNodeList that contains all the elements in the document with the local name \a localName and a namespace URI of \a nsURI. The order of the node list is the order they are encountered in a preorder traversal of the element tree. \sa elementsByTagName(), QDomElement::elementsByTagNameNS() */ QDomNodeList QDomDocument::elementsByTagNameNS(const QString& nsURI, const QString& localName) { return QDomNodeList(new QDomNodeListPrivate(impl, nsURI, localName)); } /*! Returns the element whose ID is equal to \a elementId. If no element with the ID was found, this function returns a \l{QDomNode::isNull()}{null element}. Since the QDomClasses do not know which attributes are element IDs, this function returns always a \l{QDomNode::isNull()}{null element}. This may change in a future version. */ QDomElement QDomDocument::elementById(const QString& /*elementId*/) { qWarning("elementById() is not implemented and will always return a null node."); return QDomElement(); } /*! \fn QDomNode::NodeType QDomDocument::nodeType() const Returns \c DocumentNode. */ #undef IMPL /************************************************************** * * Node casting functions * **************************************************************/ /*! Converts a QDomNode into a QDomAttr. If the node is not an attribute, the returned object will be \l{QDomNode::isNull()}{null}. \sa isAttr() */ QDomAttr QDomNode::toAttr() const { if (impl && impl->isAttr()) return QDomAttr(((QDomAttrPrivate*)impl)); return QDomAttr(); } /*! Converts a QDomNode into a QDomCDATASection. If the node is not a CDATA section, the returned object will be \l{QDomNode::isNull()}{null}. \sa isCDATASection() */ QDomCDATASection QDomNode::toCDATASection() const { if (impl && impl->isCDATASection()) return QDomCDATASection(((QDomCDATASectionPrivate*)impl)); return QDomCDATASection(); } /*! Converts a QDomNode into a QDomDocumentFragment. If the node is not a document fragment the returned object will be \l{QDomNode::isNull()}{null}. \sa isDocumentFragment() */ QDomDocumentFragment QDomNode::toDocumentFragment() const { if (impl && impl->isDocumentFragment()) return QDomDocumentFragment(((QDomDocumentFragmentPrivate*)impl)); return QDomDocumentFragment(); } /*! Converts a QDomNode into a QDomDocument. If the node is not a document the returned object will be \l{QDomNode::isNull()}{null}. \sa isDocument() */ QDomDocument QDomNode::toDocument() const { if (impl && impl->isDocument()) return QDomDocument(((QDomDocumentPrivate*)impl)); return QDomDocument(); } /*! Converts a QDomNode into a QDomDocumentType. If the node is not a document type the returned object will be \l{QDomNode::isNull()}{null}. \sa isDocumentType() */ QDomDocumentType QDomNode::toDocumentType() const { if (impl && impl->isDocumentType()) return QDomDocumentType(((QDomDocumentTypePrivate*)impl)); return QDomDocumentType(); } /*! Converts a QDomNode into a QDomElement. If the node is not an element the returned object will be \l{QDomNode::isNull()}{null}. \sa isElement() */ QDomElement QDomNode::toElement() const { if (impl && impl->isElement()) return QDomElement(((QDomElementPrivate*)impl)); return QDomElement(); } /*! Converts a QDomNode into a QDomEntityReference. If the node is not an entity reference, the returned object will be \l{QDomNode::isNull()}{null}. \sa isEntityReference() */ QDomEntityReference QDomNode::toEntityReference() const { if (impl && impl->isEntityReference()) return QDomEntityReference(((QDomEntityReferencePrivate*)impl)); return QDomEntityReference(); } /*! Converts a QDomNode into a QDomText. If the node is not a text, the returned object will be \l{QDomNode::isNull()}{null}. \sa isText() */ QDomText QDomNode::toText() const { if (impl && impl->isText()) return QDomText(((QDomTextPrivate*)impl)); return QDomText(); } /*! Converts a QDomNode into a QDomEntity. If the node is not an entity the returned object will be \l{QDomNode::isNull()}{null}. \sa isEntity() */ QDomEntity QDomNode::toEntity() const { if (impl && impl->isEntity()) return QDomEntity(((QDomEntityPrivate*)impl)); return QDomEntity(); } /*! Converts a QDomNode into a QDomNotation. If the node is not a notation the returned object will be \l{QDomNode::isNull()}{null}. \sa isNotation() */ QDomNotation QDomNode::toNotation() const { if (impl && impl->isNotation()) return QDomNotation(((QDomNotationPrivate*)impl)); return QDomNotation(); } /*! Converts a QDomNode into a QDomProcessingInstruction. If the node is not a processing instruction the returned object will be \l{QDomNode::isNull()}{null}. \sa isProcessingInstruction() */ QDomProcessingInstruction QDomNode::toProcessingInstruction() const { if (impl && impl->isProcessingInstruction()) return QDomProcessingInstruction(((QDomProcessingInstructionPrivate*)impl)); return QDomProcessingInstruction(); } /*! Converts a QDomNode into a QDomCharacterData. If the node is not a character data node the returned object will be \l{QDomNode::isNull()}{null}. \sa isCharacterData() */ QDomCharacterData QDomNode::toCharacterData() const { if (impl && impl->isCharacterData()) return QDomCharacterData(((QDomCharacterDataPrivate*)impl)); return QDomCharacterData(); } /*! Converts a QDomNode into a QDomComment. If the node is not a comment the returned object will be \l{QDomNode::isNull()}{null}. \sa isComment() */ QDomComment QDomNode::toComment() const { if (impl && impl->isComment()) return QDomComment(((QDomCommentPrivate*)impl)); return QDomComment(); } /************************************************************** * * QDomHandler * **************************************************************/ QDomHandler::QDomHandler(QDomDocumentPrivate* adoc, QXmlSimpleReader* areader, bool namespaceProcessing) : errorLine(0), errorColumn(0), doc(adoc), node(adoc), cdata(false), nsProcessing(namespaceProcessing), locator(0), reader(areader) { } QDomHandler::~QDomHandler() { } bool QDomHandler::endDocument() { // ### is this really necessary? (rms) if (node != doc) return false; return true; } bool QDomHandler::startDTD(const QString& name, const QString& publicId, const QString& systemId) { doc->doctype()->name = name; doc->doctype()->publicId = publicId; doc->doctype()->systemId = systemId; return true; } bool QDomHandler::startElement(const QString& nsURI, const QString&, const QString& qName, const QXmlAttributes& atts) { // tag name QDomNodePrivate* n; if (nsProcessing) { n = doc->createElementNS(nsURI, qName); } else { n = doc->createElement(qName); } if (!n) return false; n->setLocation(locator->lineNumber(), locator->columnNumber()); node->appendChild(n); node = n; // attributes for (int i=0; isetAttributeNS(atts.uri(i), atts.qName(i), atts.value(i)); } else { ((QDomElementPrivate*)node)->setAttribute(atts.qName(i), atts.value(i)); } } return true; } bool QDomHandler::endElement(const QString&, const QString&, const QString&) { if (!node || node == doc) return false; node = node->parent(); return true; } bool QDomHandler::characters(const QString& ch) { // No text as child of some document if (node == doc) return false; QScopedPointer n; if (cdata) { n.reset(doc->createCDATASection(ch)); } else if (!entityName.isEmpty()) { QScopedPointer e(new QDomEntityPrivate(doc, 0, entityName, QString(), QString(), QString())); e->value = ch; e->ref.deref(); doc->doctype()->appendChild(e.data()); e.take(); n.reset(doc->createEntityReference(entityName)); } else { n.reset(doc->createTextNode(ch)); } n->setLocation(locator->lineNumber(), locator->columnNumber()); node->appendChild(n.data()); n.take(); return true; } bool QDomHandler::processingInstruction(const QString& target, const QString& data) { QDomNodePrivate *n; n = doc->createProcessingInstruction(target, data); if (n) { n->setLocation(locator->lineNumber(), locator->columnNumber()); node->appendChild(n); return true; } else return false; } bool QDomHandler::skippedEntity(const QString& name) { // we can only handle inserting entity references into content if (reader && !reader->d_ptr->skipped_entity_in_content) return true; QDomNodePrivate *n = doc->createEntityReference(name); n->setLocation(locator->lineNumber(), locator->columnNumber()); node->appendChild(n); return true; } bool QDomHandler::fatalError(const QXmlParseException& exception) { errorMsg = exception.message(); errorLine = exception.lineNumber(); errorColumn = exception.columnNumber(); return QXmlDefaultHandler::fatalError(exception); } bool QDomHandler::startCDATA() { cdata = true; return true; } bool QDomHandler::endCDATA() { cdata = false; return true; } bool QDomHandler::startEntity(const QString &name) { entityName = name; return true; } bool QDomHandler::endEntity(const QString &) { entityName.clear(); return true; } bool QDomHandler::comment(const QString& ch) { QDomNodePrivate *n; n = doc->createComment(ch); n->setLocation(locator->lineNumber(), locator->columnNumber()); node->appendChild(n); return true; } bool QDomHandler::unparsedEntityDecl(const QString &name, const QString &publicId, const QString &systemId, const QString ¬ationName) { QDomEntityPrivate* e = new QDomEntityPrivate(doc, 0, name, publicId, systemId, notationName); // keep the refcount balanced: appendChild() does a ref anyway. e->ref.deref(); doc->doctype()->appendChild(e); return true; } bool QDomHandler::externalEntityDecl(const QString &name, const QString &publicId, const QString &systemId) { return unparsedEntityDecl(name, publicId, systemId, QString()); } bool QDomHandler::notationDecl(const QString & name, const QString & publicId, const QString & systemId) { QDomNotationPrivate* n = new QDomNotationPrivate(doc, 0, name, publicId, systemId); // keep the refcount balanced: appendChild() does a ref anyway. n->ref.deref(); doc->doctype()->appendChild(n); return true; } void QDomHandler::setDocumentLocator(QXmlLocator *locator) { this->locator = locator; } QT_END_NAMESPACE #endif // QT_NO_DOM