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/****************************************************************************
**
** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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** GNU General Public License Usage
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//
// 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_XsdParticleChecker_H
#define Patternist_XsdParticleChecker_H
#include "qxsdelement_p.h"
#include "qxsdparticle_p.h"
#include "qxsdschemacontext_p.h"
#include "qxsdwildcard_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short A helper class to check validity of particles.
*
* @ingroup Patternist_schema
* @author Tobias Koenig <tobias.koenig@nokia.com>
*/
class XsdParticleChecker
{
public:
/**
* Checks whether the given @p particle has two or more element
* declarations with the same name but different type definitions.
*/
static bool hasDuplicatedElements(const XsdParticle::Ptr &particle, const NamePool::Ptr &namePool, XsdElement::Ptr &conflictingElement);
/**
* Checks whether the given @p particle is valid according the
* UPA (http://www.w3.org/TR/xmlschema-1/#cos-nonambig) constraint.
*/
static bool isUPAConform(const XsdParticle::Ptr &particle, const NamePool::Ptr &namePool);
/**
* Checks whether the given @p particle, which must be an xsd:all element,
* is valid according the UPA (http://www.w3.org/TR/xmlschema-1/#cos-nonambig) constraint.
* For xsd:all elements, we do not want to construct a state machine.
*/
static bool isUPAConformXsdAll(const XsdParticle::Ptr &particle, const NamePool::Ptr &namePool);
/**
* Checks whether the given @p particle subsumes the given @p derivedParticle.
* (http://www.w3.org/TR/xmlschema-1/#cos-particle-restrict)
*/
static bool subsumes(const XsdParticle::Ptr &particle, const XsdParticle::Ptr &derivedParticle, const XsdSchemaContext::Ptr &context, QString &errorMsg);
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif