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/****************************************************************************
**
** Copyright (C) 2008 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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_XsdStateMachineBuilder_H
#define Patternist_XsdStateMachineBuilder_H
#include "qxsdparticle_p.h"
#include "qxsdstatemachine_p.h"
#include "qxsdterm_p.h"
#include <QtCore/QExplicitlySharedDataPointer>
#include <QtCore/QList>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short A helper class to build up validation state machines.
*
* @ingroup Patternist_schema
* @author Tobias Koenig <tobias.koenig@nokia.com>
*/
class XsdStateMachineBuilder : public QSharedData
{
public:
typedef QExplicitlySharedDataPointer<XsdStateMachineBuilder> Ptr;
enum Mode
{
CheckingMode,
ValidatingMode
};
/**
* Creates a new state machine builder.
*
* @param machine The state machine it should work on.
* @param namePool The name pool used by all schema components.
* @param mode The mode the machine shall be build for.
*/
XsdStateMachineBuilder(XsdStateMachine<XsdTerm::Ptr> *machine, const NamePool::Ptr &namePool, Mode mode = CheckingMode);
/**
* Resets the state machine.
*
* @returns The initial end state.
*/
XsdStateMachine<XsdTerm::Ptr>::StateId reset();
/**
* Prepends a start state to the given @p state.
* That is needed to allow the conversion of the state machine from a FSA to a DFA.
*/
XsdStateMachine<XsdTerm::Ptr>::StateId addStartState(XsdStateMachine<XsdTerm::Ptr>::StateId state);
/**
* Creates the state machine for the given @p particle that should have the
* given @p endState.
*
* @returns The new start state.
*/
XsdStateMachine<XsdTerm::Ptr>::StateId buildParticle(const XsdParticle::Ptr &particle, XsdStateMachine<XsdTerm::Ptr>::StateId endState);
/**
* Creates the state machine for the given @p term that should have the
* given @p endState.
*
* @returns The new start state.
*/
XsdStateMachine<XsdTerm::Ptr>::StateId buildTerm(const XsdTerm::Ptr &term, XsdStateMachine<XsdTerm::Ptr>::StateId endState);
/**
* Returns a hash that maps each term that appears inside @p particle, to the particle it belongs.
*
* @note These information are used by XsdParticleChecker to check particle inheritance.
*/
static QHash<XsdTerm::Ptr, XsdParticle::Ptr> particleLookupMap(const XsdParticle::Ptr &particle);
private:
XsdStateMachine<XsdTerm::Ptr> *m_stateMachine;
NamePool::Ptr m_namePool;
Mode m_mode;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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