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Diffstat (limited to 'src/xmlpatterns/acceltree/qacceltreebuilder_p.h')
| -rw-r--r-- | src/xmlpatterns/acceltree/qacceltreebuilder_p.h | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/src/xmlpatterns/acceltree/qacceltreebuilder_p.h b/src/xmlpatterns/acceltree/qacceltreebuilder_p.h new file mode 100644 index 0000000..747099f --- /dev/null +++ b/src/xmlpatterns/acceltree/qacceltreebuilder_p.h @@ -0,0 +1,204 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtXmlPatterns module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. + +#ifndef Patternist_AccelTreeBuilder_H +#define Patternist_AccelTreeBuilder_H + +#include <QSet> +#include <QStack> + +#include "private/qxmlutils_p.h" +#include "qacceltree_p.h" +#include "qbuiltintypes_p.h" +#include "qcompressedwhitespace_p.h" +#include "qnamepool_p.h" +#include "qnodebuilder_p.h" +#include "qreportcontext_p.h" +#include "qsourcelocationreflection_p.h" +#include "qpatternistlocale_p.h" +#include <QtDebug> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +namespace QPatternist +{ + /** + * @short Builds an AccelTree from a stream of XML/Item events + * received through the NodeBuilder interface. + * + * If FromDocument is @c true, it is assumed that AccelTreeBuilder is fed + * events from an XML document, otherwise it is assumed the events + * are from node constructor expressions. + * + * @author Frans Englich <frans.englich@nokia.com> + */ + template<bool FromDocument> + class AccelTreeBuilder : public NodeBuilder + , public SourceLocationReflection + { + public: + typedef QExplicitlySharedDataPointer<AccelTreeBuilder> Ptr; + + /** + * Describes the memory relevant features the builder shall support. + */ + enum Feature + { + NoneFeature, ///< No special features are enabled. + SourceLocationsFeature = 1 ///< The accel tree builder will store source locations for each start element. + }; + Q_DECLARE_FLAGS(Features, Feature) + + /** + * @param context may be @c null. + */ + AccelTreeBuilder(const QUrl &docURI, + const QUrl &baseURI, + const NamePool::Ptr &np, + ReportContext *const context, + Features features = NoneFeature); + virtual void startDocument(); + virtual void endDocument(); + virtual void startElement(const QXmlName &name); + void startElement(const QXmlName &name, qint64 line, qint64 column); + virtual void endElement(); + virtual void attribute(const QXmlName &name, const QStringRef &value); + virtual void characters(const QStringRef &ch); + virtual void whitespaceOnly(const QStringRef &ch); + virtual void processingInstruction(const QXmlName &target, + const QString &data); + virtual void namespaceBinding(const QXmlName &nb); + virtual void comment(const QString &content); + virtual void item(const Item &it); + + virtual QAbstractXmlNodeModel::Ptr builtDocument(); + virtual NodeBuilder::Ptr create(const QUrl &baseURI) const; + virtual void startOfSequence(); + virtual void endOfSequence(); + + inline AccelTree::Ptr builtDocument() const + { + return m_document; + } + + virtual void atomicValue(const QVariant &value); + + virtual const SourceLocationReflection *actualReflection() const; + virtual QSourceLocation sourceLocation() const; + + private: + inline void startStructure(); + + inline AccelTree::PreNumber currentDepth() const + { + return m_ancestors.count() -1; + } + + inline AccelTree::PreNumber currentParent() const + { + return m_ancestors.isEmpty() ? -1 : m_ancestors.top(); + } + + enum Constants + { + DefaultNodeStackSize = 10, + SizeIsEmpty = 0 + }; + + AccelTree::PreNumber m_preNumber; + bool m_isPreviousAtomic; + bool m_hasCharacters; + /** + * Whether m_characters has been run through + * CompressedWhitespace::compress(). + */ + bool m_isCharactersCompressed; + QString m_characters; + NamePool::Ptr m_namePool; + AccelTree::Ptr m_document; + QStack<AccelTree::PreNumber> m_ancestors; + QStack<AccelTree::PreNumber> m_size; + + /** If we have already commenced a document, we don't want to + * add more document nodes. We keep track of them with this + * counter, which ensures that startDocument() and endDocument() + * are skipped consistently. */ + AccelTree::PreNumber m_skippedDocumentNodes; + + /** + * All attribute values goes through this set such that we store only + * one QString for identical attribute values. + */ + QSet<QString> m_attributeCompress; + const QUrl m_documentURI; + /** + * We don't store a reference pointer here because then we get a + * circular reference with GenericDynamicContext, when it stores us as + * a member. + */ + ReportContext *const m_context; + + Features m_features; + }; + + Q_DECLARE_OPERATORS_FOR_FLAGS(AccelTreeBuilder<true>::Features) + Q_DECLARE_OPERATORS_FOR_FLAGS(AccelTreeBuilder<false>::Features) + +#include "qacceltreebuilder.cpp" +} + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif |