C++ QXmlName::namespaceURI方法代码示例

Item AttributeNameValidator::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item name(m_operand->evaluateSingleton(context));
    const QXmlName qName(name.as<QNameValue>()->qName());

    if(qName.namespaceURI() == StandardNamespaces::xmlns)
    {
        context->error(QtXmlPatterns::tr("The namespace URI in the name for a "
                                         "computed attribute cannot be %1.")
                       .arg(formatURI(CommonNamespaces::XMLNS)),
                       ReportContext::XQDY0044, this);
        return Item(); /* Silence warning. */
    }
    else if(qName.namespaceURI() == StandardNamespaces::empty &&
            qName.localName() == StandardLocalNames::xmlns)
    {
        context->error(QtXmlPatterns::tr("The name for a computed attribute "
                                         "cannot have the namespace URI %1 "
                                         "with the local name %2.")
                          .arg(formatURI(CommonNamespaces::XMLNS))
                          .arg(formatKeyword("xmlns")),
                       ReportContext::XQDY0044, this);
        return Item(); /* Silence warning. */
    }
    else if(!qName.hasPrefix() && qName.hasNamespace())
    {
        return Item(QNameValue::fromValue(context->namePool(),
                                          QXmlName(qName.namespaceURI(), qName.localName(), StandardPrefixes::ns0)));
    }
    else
        return name;
}

void GenericNamespaceResolver::addBinding(const QXmlName nb)
{
    if(nb.namespaceURI() == StandardNamespaces::UndeclarePrefix)
        m_bindings.remove(nb.prefix());
    else
        m_bindings.insert(nb.prefix(), nb.namespaceURI());
}

/**
 * This method is used by the isUPAConform method to check whether @p term and @p otherTerm
 * are the same resp. match each other.
 */
static bool termMatches(const XsdTerm::Ptr &term, const XsdTerm::Ptr &otherTerm, const NamePool::Ptr &namePool)
{
    if (term->isElement()) {
        const XsdElement::Ptr element(term);

        if (otherTerm->isElement()) {
            // both, the term and the other term are elements

            const XsdElement::Ptr otherElement(otherTerm);

            // if they have the same name they match
            if (element->name(namePool) == otherElement->name(namePool))
                return true;

        } else if (otherTerm->isWildcard()) {
            // the term is an element and the other term a wildcard

            const XsdWildcard::Ptr wildcard(otherTerm);

            // wildcards using XsdWildcard::absentNamespace, so we have to fix that here
            QXmlName name = element->name(namePool);
            if (name.namespaceURI() == StandardNamespaces::empty)
                name.setNamespaceURI(namePool->allocateNamespace(XsdWildcard::absentNamespace()));

            // if the wildcards namespace constraint allows the elements name, they match
            if (XsdSchemaHelper::wildcardAllowsExpandedName(name, wildcard, namePool))
                return true;
        }
    } else if (term->isWildcard()) {
        const XsdWildcard::Ptr wildcard(term);

        if (otherTerm->isElement()) {
            // the term is a wildcard and the other term an element

            const XsdElement::Ptr otherElement(otherTerm);

            // wildcards using XsdWildcard::absentNamespace, so we have to fix that here
            QXmlName name = otherElement->name(namePool);
            if (name.namespaceURI() == StandardNamespaces::empty)
                name.setNamespaceURI(namePool->allocateNamespace(XsdWildcard::absentNamespace()));

            // if the wildcards namespace constraint allows the elements name, they match
            if (XsdSchemaHelper::wildcardAllowsExpandedName(name, wildcard, namePool))
                return true;

        } else if (otherTerm->isWildcard()) {
            // both, the term and the other term are wildcards

            const XsdWildcard::Ptr otherWildcard(otherTerm);

            // check if the range of the wildcard overlaps.
            const XsdWildcard::Ptr intersectionWildcard = XsdSchemaHelper::wildcardIntersection(wildcard, otherWildcard);
            if (!intersectionWildcard ||
                (intersectionWildcard && !(intersectionWildcard->namespaceConstraint()->variety() != XsdWildcard::NamespaceConstraint::Not && intersectionWildcard->namespaceConstraint()->namespaces().isEmpty())))
                return true;
        }
    }

    return false;
}

void ComputedNamespaceConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
{
    const Item prefixItem(m_operand1->evaluateSingleton(context));
    const QString prefix(prefixItem ? prefixItem.stringValue() : QString());

    const Item namespaceItem(m_operand2->evaluateSingleton(context));
    const QString namespaceURI(namespaceItem ? namespaceItem.stringValue() : QString());

    if(namespaceURI.isEmpty())
    {
        context->error(QtXmlPatterns::tr("In a namespace constructor, the value for a namespace cannot be an empty string."),
                       ReportContext::XTDE0930,
                       this);
    }

    /* One optimization could be to store a pointer to
     * the name pool as a member in order to avoid the virtual call(s). */
    const NamePool::Ptr np(context->namePool());

    if(!prefix.isEmpty() && !QXmlUtils::isNCName(prefix))
    {
        context->error(QtXmlPatterns::tr("The prefix must be a valid %1, which %2 is not.")
                                        .arg(formatType(np, BuiltinTypes::xsNCName),
                                             formatKeyword(prefix)),
                       ReportContext::XTDE0920,
                       this);
    }
    const QXmlName binding(np->allocateBinding(prefix, namespaceURI));

    AnyURI::toQUrl<ReportContext::XTDE0905, DynamicContext::Ptr>(namespaceURI,
                                                                 context,
                                                                 this);

    if(binding.prefix() == StandardPrefixes::xmlns)
    {
        context->error(QtXmlPatterns::tr("The prefix %1 cannot be bound.")
                                        .arg(formatKeyword(prefix)),
                       ReportContext::XTDE0920,
                       this);
    }

    if((binding.prefix() == StandardPrefixes::xml && binding.namespaceURI() != StandardNamespaces::xml)
       ||
       (binding.prefix() != StandardPrefixes::xml && binding.namespaceURI() == StandardNamespaces::xml))
    {
        context->error(QtXmlPatterns::tr("Only the prefix %1 can be bound to %2 and vice versa.")
                                        .arg(formatKeyword(prefix), formatKeyword(namespaceURI)),
                       ReportContext::XTDE0925,
                       this);
    }

     context->outputReceiver()->namespaceBinding(binding);
}

FunctionSignature::Ptr XSLT10CoreFunctions::retrieveFunctionSignature(const NamePool::Ptr &np, const QXmlName name)
{
    if(StandardNamespaces::fn != name.namespaceURI())
        return FunctionSignature::Ptr();

    FunctionSignature::Ptr s(functionSignatures().value(name));

    if(!s)
    {
        /* Alphabetic order. */
        if(name.localName() == StandardLocalNames::function_available)
        {
            s = addFunction(StandardLocalNames::function_available, 1, 2, CommonSequenceTypes::ExactlyOneBoolean);
            s->appendArgument(argument(np, "function_name"), CommonSequenceTypes::ExactlyOneString);
            s->appendArgument(argument(np, "arity"), CommonSequenceTypes::ExactlyOneInteger);
        }
        else if(name.localName() == StandardLocalNames::system_property)
        {
            s = addFunction(StandardLocalNames::system_property, 1, 1, CommonSequenceTypes::ExactlyOneString);
            s->appendArgument(argument(np, "property_name"), CommonSequenceTypes::ExactlyOneString);
        }
    }

    return s;
}

void AccelTreeBuilder<FromDocument>::startElement(const QXmlName &name, qint64 line, qint64 column)
{
    startStructure();

    AccelTree::BasicNodeData data(currentDepth(), currentParent(), QXmlNodeModelIndex::Element, -1, name);
    m_document->basicData.append(data);
    if (m_features & SourceLocationsFeature)
        m_document->sourcePositions.insert(m_document->maximumPreNumber(), qMakePair(line, column));

    ++m_preNumber;
    m_ancestors.push(m_preNumber);

    ++m_size.top();
    m_size.push(0);

    /* With node constructors, we can receive names for which we have no namespace
     * constructors, such as in the query '<xs:space/>'. Since the 'xs' prefix has no
     * NamespaceConstructor in this case, we synthesize the namespace.
     *
     * In case we're constructing from an XML document we avoid the call because
     * although it's redundant, it's on extra virtual call for each element. */
    if(!FromDocument)
        namespaceBinding(QXmlName(name.namespaceURI(), 0, name.prefix()));

    m_isPreviousAtomic = false;
}

QString ExternalEnvironment::retrieveProperty(const QXmlName name)
{
    if(name.namespaceURI() != StandardNamespaces::xslt)
        return QString();

    switch(name.localName())
    {
        case StandardLocalNames::version:
            return QString::number(ExternalEnvironment::XSLVersion);
        case StandardLocalNames::vendor:
            return ExternalEnvironment::Vendor;
        case StandardLocalNames::vendor_url:
            return QString(ExternalEnvironment::VendorURL.toString());
        case StandardLocalNames::product_name:
            return ExternalEnvironment::ProductName;
        case StandardLocalNames::product_version:
            return ExternalEnvironment::ProductVersion;
        case StandardLocalNames::is_schema_aware:
            return toString(ExternalEnvironment::IsSchemaAware);
        case StandardLocalNames::supports_serialization:
            return toString(ExternalEnvironment::SupportsSerialization);
        case StandardLocalNames::supports_backwards_compatibility:
            return toString(ExternalEnvironment::SupportsBackwardsCompatibility);
        default:
            return QString();
    }
}

QString SystemPropertyFN::retrieveProperty(const QXmlName name)
{
    if(name.namespaceURI() != StandardNamespaces::xslt)
        return QString();

    switch(name.localName())
    {
        case StandardLocalNames::version:
            /*
             * The supported XSL-T version.
             *
             * @see <a href="http://www.w3.org/TR/xslt20/#system-property">The Note paragraph
             * at the very end of XSL Transformations (XSLT) Version 2.0,
             * 16.6.5 system-property</a>
             */
            return QString::number(1.20);
        case StandardLocalNames::vendor:
            return QLatin1String("Digia Plc and/or its subsidiary(-ies), a Digia Company");
        case StandardLocalNames::vendor_url:
            return QLatin1String("http://qt.digia.com/");
        case StandardLocalNames::product_name:
            return QLatin1String("QtXmlPatterns");
        case StandardLocalNames::product_version:
            return QLatin1String("0.1");
        case StandardLocalNames::is_schema_aware:
        /* Fallthrough. */
        case StandardLocalNames::supports_backwards_compatibility:
        /* Fallthrough. */
        case StandardLocalNames::supports_serialization:
        /* Fallthrough. */
            return QLatin1String("no");
        default:
            return QString();
    }
}

QString NamePool::displayName(const QXmlName qName) const
{
    QReadLocker l(mutableLock());

    if(qName.hasNamespace())
    {
        const QString &p = displayPrefix(qName.namespaceURI());

        if(p.isEmpty())
            return QLatin1Char('{') + m_namespaces.at(qName.namespaceURI()) + QLatin1Char('}') + toLexical(qName);
        else
            return p + QLatin1Char(':') + m_localNames.at(qName.localName());
    }
    else
        return m_localNames.at(qName.localName());
}

void ReportContext::error(const QString &msg,
                          const QXmlName qname,
                          const SourceLocationReflection *const reflection)
{
    Q_ASSERT(!qname.isNull());
    createError(msg, QtFatalMsg,
                QUrl(namePool()->stringForNamespace(qname.namespaceURI()) + QLatin1Char('#') + namePool()->stringForLocalName(qname.localName())),
                lookupSourceLocation(reflection));
}

QString NamePool::displayName(const QXmlName qName) const
{
    QReadLocker l(&lock);

    if(qName.hasNamespace())
    {
        if(qName.namespaceURI() == StandardNamespaces::InternalXSLT)
            return QLatin1Char('#') + m_localNames.at(qName.localName());

        const QString &p = displayPrefix(qName.namespaceURI());

        if(p.isEmpty())
            return QLatin1Char('{') + m_namespaces.at(qName.namespaceURI()) + QLatin1Char('}') + toLexical(qName);
        else
            return p + QLatin1Char(':') + m_localNames.at(qName.localName());
    }
    else
        return m_localNames.at(qName.localName());
}

/*!
  \internal
 */
bool QXmlSerializer::isBindingInScope(const QXmlName nb) const
{
    Q_D(const QXmlSerializer);
    const int levelLen = d->namespaces.size();

    if(nb.prefix() == StandardPrefixes::empty)
    {
        for(int lvl = levelLen - 1; lvl >= 0; --lvl)
        {
            const QVector<QXmlName> &scope = d->namespaces.at(lvl);
            const int vectorLen = scope.size();

            for(int s = vectorLen - 1; s >= 0; --s)
            {
                const QXmlName &nsb = scope.at(s);

                if(nsb.prefix() == StandardPrefixes::empty)
                    return nsb.namespaceURI() == nb.namespaceURI();
            }
        }
    }
    else
    {
        for(int lvl = 0; lvl < levelLen; ++lvl)
        {
            const QVector<QXmlName> &scope = d->namespaces.at(lvl);
            const int vectorLen = scope.size();

            for(int s = 0; s < vectorLen; ++s)
            {
                const QXmlName &n = scope.at(s);
                if (n.prefix() == nb.prefix() &&
                    n.namespaceURI() == nb.namespaceURI())
                    return true;
            }
        }
    }

    return false;
}

/*!
 \reimp
 */
void QXmlSerializer::namespaceBinding(const QXmlName &nb)
{
    /*
     * Writes out \a nb.
     *
     * Namespace bindings aren't looked up in a cache, because
     * we typically receive very few.
     */

    Q_D(QXmlSerializer);
    Q_ASSERT_X(!nb.isNull(), Q_FUNC_INFO,
               "It makes no sense to pass a null QXmlName.");

    Q_ASSERT_X((nb.namespaceURI() != StandardNamespaces::empty) ||
               (nb.prefix() == StandardPrefixes::empty),
               Q_FUNC_INFO,
               "Undeclarations of prefixes aren't allowed in XML 1.0 "
               "and aren't supposed to be received.");

    if(nb.namespaceURI() == QPatternist::StandardNamespaces::StopNamespaceInheritance)
        return;

    if(isBindingInScope(nb))
        return;

    d->namespaces.top().append(nb);

    if(nb.prefix() == StandardPrefixes::empty)
        write(" xmlns");
    else
    {
        write(" xmlns:");
        write(d->np->stringForPrefix(nb.prefix()));
    }

    write("=\"");
    writeEscapedAttribute(d->np->stringForNamespace(nb.namespaceURI()));
    d->write('"');
}

Item NamespaceURIFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item node(m_operands.first()->evaluateSingleton(context));

    if(node)
    {
        const QXmlName name(node.asNode().name());

        if(name.isNull())
            return CommonValues::EmptyAnyURI;
        else
            return toItem(AnyURI::fromValue(context->namePool()->stringForNamespace(name.namespaceURI())));
    }
    else
        return CommonValues::EmptyAnyURI;
}

QString NamePool::toClarkName(const QXmlName &name) const
{
    if(name.isNull())
        return QLatin1String("QXmlName(null)");
    else
    {
        if(name.hasNamespace())
        {
            const QString ns(stringForNamespace(name.namespaceURI()));
            const QString p(stringForPrefix(name.prefix()));
            const QString l(stringForLocalName(name.localName()));

            return   QChar::fromLatin1('{')
                   + ns
                   + QChar::fromLatin1('}')
                   + (p.isEmpty() ? l : p + QChar::fromLatin1(':') + l);
        }
        else
            return stringForLocalName(name.localName());
    }
}