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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns 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
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** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
QT_BEGIN_NAMESPACE
using namespace QPatternist;
bool XsdSchemaChecker::hasDuplicatedAttributeUses(const XsdAttributeUse::List &list, XsdAttribute::Ptr &conflictingAttribute) const
{
const int length = list.count();
for (int i = 0; i < length; ++i) {
for (int j = 0; j < length; ++j) {
if (i == j)
continue;
if (list.at(i)->attribute()->name(m_namePool) == list.at(j)->attribute()->name(m_namePool)) {
conflictingAttribute = list.at(i)->attribute();
return true;
}
}
}
return false;
}
bool XsdSchemaChecker::hasMultipleIDAttributeUses(const XsdAttributeUse::List &list) const
{
const int length = list.count();
bool hasIdDerivedAttribute = false;
for (int i = 0; i < length; ++i) {
if (BuiltinTypes::xsID->wxsTypeMatches(list.at(i)->attribute()->type())) {
if (hasIdDerivedAttribute)
return true;
else
hasIdDerivedAttribute = true;
}
}
return false;
}
bool XsdSchemaChecker::hasConstraintIDAttributeUse(const XsdAttributeUse::List &list, XsdAttribute::Ptr &conflictingAttribute) const
{
const int length = list.count();
for (int i = 0; i < length; ++i) {
const XsdAttributeUse::Ptr attributeUse(list.at(i));
if (BuiltinTypes::xsID->wxsTypeMatches(attributeUse->attribute()->type())) {
if (attributeUse->valueConstraint()) {
conflictingAttribute = attributeUse->attribute();
return true;
}
}
}
return false;
}
bool XsdSchemaChecker::particleEqualsRecursively(const XsdParticle::Ptr &particle, const XsdParticle::Ptr &otherParticle) const
{
// @see http://www.w3.org/TR/xmlschema11-1/#cos-particle-extend
//TODO: find out what 'properties' of a particle should be checked here...
if (particle->minimumOccurs() != otherParticle->minimumOccurs())
return false;
if (particle->maximumOccursUnbounded() != otherParticle->maximumOccursUnbounded())
return false;
if (particle->maximumOccurs() != otherParticle->maximumOccurs())
return false;
const XsdTerm::Ptr term = particle->term();
const XsdTerm::Ptr otherTerm = otherParticle->term();
if (term->isElement() && !(otherTerm->isElement()))
return false;
if (term->isModelGroup() && !(otherTerm->isModelGroup()))
return false;
if (term->isWildcard() && !(otherTerm->isWildcard()))
return false;
if (term->isElement()) {
const XsdElement::Ptr element = term;
const XsdElement::Ptr otherElement = otherTerm;
if (element->name(m_namePool) != otherElement->name(m_namePool))
return false;
if (element->type()->name(m_namePool) != otherElement->type()->name(m_namePool))
return false;
}
if (term->isModelGroup()) {
const XsdModelGroup::Ptr group = term;
const XsdModelGroup::Ptr otherGroup = otherTerm;
if (group->particles().count() != otherGroup->particles().count())
return false;
for (int i = 0; i < group->particles().count(); ++i) {
if (!particleEqualsRecursively(group->particles().at(i), otherGroup->particles().at(i)))
return false;
}
}
if (term->isWildcard()) {
}
return true;
}
bool XsdSchemaChecker::isValidParticleExtension(const XsdParticle::Ptr &extension, const XsdParticle::Ptr &base) const
{
// @see http://www.w3.org/TR/xmlschema11-1/#cos-particle-extend
// 1
if (extension == base)
return true;
// 2
if (extension->minimumOccurs() == 1 && extension->maximumOccurs() == 1 && extension->maximumOccursUnbounded() == false) {
if (extension->term()->isModelGroup()) {
const XsdModelGroup::Ptr modelGroup = extension->term();
if (modelGroup->compositor() == XsdModelGroup::SequenceCompositor) {
if (particleEqualsRecursively(modelGroup->particles().first(), base))
return true;
}
}
}
// 3
if (extension->minimumOccurs() == base->minimumOccurs()) { // 3.1
if (extension->term()->isModelGroup() && base->term()->isModelGroup()) {
const XsdModelGroup::Ptr extensionGroup(extension->term());
const XsdModelGroup::Ptr baseGroup(base->term());
if (extensionGroup->compositor() == XsdModelGroup::AllCompositor && baseGroup->compositor() == XsdModelGroup::AllCompositor) {
const XsdParticle::List extensionParticles = extensionGroup->particles();
const XsdParticle::List baseParticles = baseGroup->particles();
for (int i = 0; i < baseParticles.count() && i < extensionParticles.count(); ++i) {
if (baseParticles.at(i) != extensionParticles.at(i))
return false;
}
}
}
}
return false;
}
QSet<XsdElement::Ptr> collectAllElements(const XsdParticle::Ptr &particle)
{
QSet<XsdElement::Ptr> elements;
const XsdTerm::Ptr term(particle->term());
if (term->isElement()) {
elements.insert(XsdElement::Ptr(term));
} else if (term->isModelGroup()) {
const XsdModelGroup::Ptr group(term);
for (int i = 0; i < group->particles().count(); ++i)
elements.unite(collectAllElements(group->particles().at(i)));
}
return elements;
}
QSet<XsdElement::Ptr> collectAllElements(const XsdSchema::Ptr &schema)
{
QSet<XsdElement::Ptr> elements;
// collect global elements
const XsdElement::List elementList = schema->elements();
for (int i = 0; i < elementList.count(); ++i)
elements.insert(elementList.at(i));
// collect all elements from global groups
const XsdModelGroup::List groupList = schema->elementGroups();
for (int i = 0; i < groupList.count(); ++i) {
const XsdModelGroup::Ptr group(groupList.at(i));
for (int j = 0; j < group->particles().count(); ++j)
elements.unite(collectAllElements(group->particles().at(j)));
}
// collect all elements from complex type definitions
SchemaType::List types;
types << schema->types() << schema->anonymousTypes();
for (int i = 0; i < types.count(); ++i) {
if (types.at(i)->isComplexType() && types.at(i)->isDefinedBySchema()) {
const XsdComplexType::Ptr complexType(types.at(i));
if (complexType->contentType()->particle())
elements.unite(collectAllElements(complexType->contentType()->particle()));
}
}
return elements;
}
bool XsdSchemaChecker::elementSequenceAccepted(const XsdModelGroup::Ptr &sequence, const XsdParticle::Ptr &particle) const
{
// @see http://www.w3.org/TR/xmlschema11-1/#cvc-accept
if (particle->term()->isWildcard()) { // 1
const XsdWildcard::Ptr wildcard(particle->term());
// 1.1
if ((unsigned int)sequence->particles().count() < particle->minimumOccurs())
return false;
// 1.2
if (!particle->maximumOccursUnbounded()) {
if ((unsigned int)sequence->particles().count() > particle->maximumOccurs())
return false;
}
// 1.3
const XsdParticle::List particles(sequence->particles());
for (int i = 0; i < particles.count(); ++i) {
if (particles.at(i)->term()->isElement()) {
if (!XsdSchemaHelper::wildcardAllowsExpandedName(XsdElement::Ptr(particles.at(i)->term())->name(m_namePool), wildcard, m_namePool))
return false;
}
}
} else if (particle->term()->isElement()) { // 2
const XsdElement::Ptr element(particle->term());
// 2.1
if ((unsigned int)sequence->particles().count() < particle->minimumOccurs())
return false;
// 2.2
if (!particle->maximumOccursUnbounded()) {
if ((unsigned int)sequence->particles().count() > particle->maximumOccurs())
return false;
}
// 2.3
const XsdParticle::List particles(sequence->particles());
for (int i = 0; i < particles.count(); ++i) {
bool isValid = false;
Q_UNUSED(isValid)
if (particles.at(i)->term()->isElement()) {
const XsdElement::Ptr seqElement(particles.at(i)->term());
// 2.3.1
if (element->name(m_namePool) == seqElement->name(m_namePool))
isValid = true;
// 2.3.2
if (element->scope() && element->scope()->variety() == XsdElement::Scope::Global) {
if (!(element->disallowedSubstitutions() & NamedSchemaComponent::SubstitutionConstraint)) {
//TODO: continue
}
}
}
}
}
return true;
}
QT_END_NAMESPACE