/****************************************************************************+
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**+
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtXmlPatterns module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists purely as an+
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// implementation detail.  This header file may change from version to+
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// version without notice, or even be removed.+
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//+
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// We mean it.+
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+
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#ifndef Patternist_NamespaceResolver_H+
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#define Patternist_NamespaceResolver_H+
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+
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#include <QSharedData>+
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#include <QXmlName>+
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+
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+
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QT_BEGIN_HEADER+
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+
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QT_BEGIN_NAMESPACE+
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+
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template<typename A, typename B> class QHash;+
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+
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namespace QPatternist+
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{+
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+
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    /**+
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     * @short Base class for namespace resolvers.+
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     *+
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     * @ingroup Patternist+
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     * @author Frans Englich <frans.englich@nokia.com>+
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     */+
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    class NamespaceResolver : public QSharedData+
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    {+
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    public:+
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        enum Constants+
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        {+
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            NoBinding = -1+
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        };+
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+
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        typedef QExplicitlySharedDataPointer<NamespaceResolver> Ptr;+
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+
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        /**+
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         * A list of namespace bindings. The key is the prefix, and the value is+
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         * the namespace URI.+
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         */+
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        typedef QHash<QXmlName::PrefixCode, QXmlName::NamespaceCode> Bindings;+
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+
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        NamespaceResolver();+
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        virtual ~NamespaceResolver();+
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+
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        /**+
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         * Adds the mapping from @p prefix to @p namespaceURI to+
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         * this NamespaceResolver. If this NamespaceResolver already contains+
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         * a binding involving @p prefix, the old binding is replaced.+
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         */+
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        virtual void addBinding(const QXmlName nb) = 0;+
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+
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        /**+
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         * Resolves the @p prefix to the corresponding namespace URI. If no binding+
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         * exists for @p prefix, NoBinding is returned.+
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         *+
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         * @returns the namespace corresponding to @p prefix.+
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         */+
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        virtual QXmlName::NamespaceCode lookupNamespaceURI(const QXmlName::PrefixCode prefix) const = 0;+
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+
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        /**+
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         * @returns all bindings this NamespaceResolver handles.+
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         */+
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        virtual Bindings bindings() const = 0;+
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    };+
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}+
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+
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QT_END_NAMESPACE+
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+
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QT_END_HEADER+
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+
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#endif+
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