QPatternist::NamespaceSupport Class Reference

A helper class for handling nested namespace declarations. More...

#include <qnamespacesupport_p.h>

Public Types
enum	NameType { AttributeName, ElementName }

Public Functions
QList< QXmlName >	namespaceBindings () const
	NamespaceSupport ()
	NamespaceSupport (NamePool &namePool)
void	popContext ()
QXmlName::PrefixCode	prefix (const QXmlName::NamespaceCode code) const
bool	processName (const QString &qualifiedName, NameType type, QXmlName &name) const
void	pushContext ()
void	setPrefix (const QXmlName::PrefixCode prefixCode, const QXmlName::NamespaceCode namespaceCode)
void	setPrefixes (const QXmlStreamNamespaceDeclarations &declarations)
void	setTargetNamespace (const QXmlName::NamespaceCode code)
QXmlName::NamespaceCode	uri (const QXmlName::PrefixCode code) const

Private Types
typedef QHash< QXmlName::PrefixCode, QXmlName::NamespaceCode >	NamespaceHash

Properties
NamePool *	m_namePool
NamespaceHash	m_ns
QStack< NamespaceHash >	m_nsStack

Detailed Description

A helper class for handling nested namespace declarations.

This class is mostly an adaption of QXmlNamespaceSupport to the NamePool mechanism used in XmlPatterns.

Author

Tobias Koenig tobia.nosp@m.s.ko.nosp@m.enig@.nosp@m.noki.nosp@m.a.com

Definition at line 78 of file qnamespacesupport_p.h.

Typedefs

NamespaceHash

typedef QHash<QXmlName::PrefixCode, QXmlName::NamespaceCode> QPatternist::NamespaceSupport::NamespaceHash

private

Definition at line 161 of file qnamespacesupport_p.h.

Enumerations

NameType

enum QPatternist::NamespaceSupport::NameType

Describes whether the name to process is an attribute or element.

Enumerator
AttributeName	An attribute name to process.
ElementName	An element name to process.

Definition at line 84 of file qnamespacesupport_p.h.

            {
                AttributeName,  
                ElementName     
            };

Constructors and Destructors

NamespaceSupport() [1/2]

NamespaceSupport::NamespaceSupport

(

)

Creates an empty namespace support object.

Definition at line 58 of file qnamespacesupport.cpp.

{
}

NamespaceSupport() [2/2]

NamespaceSupport::NamespaceSupport

(

NamePool &

namePool

)

Creates a new namespace support object.

Parameters

namePool

The name pool where all processed names are stored in.

Definition at line 62 of file qnamespacesupport.cpp.

    : m_namePool(&namePool)
{
    // the XML namespace
    m_ns.insert(StandardPrefixes::xml, StandardNamespaces::xml);
}

Functions

namespaceBindings()

QList< QXmlName > NamespaceSupport::namespaceBindings

(

)

const

Returns the list of namespace bindings.

Definition at line 147 of file qnamespacesupport.cpp.

Referenced by QPatternist::XsdSchemaParser::readXPathAttribute(), and QPatternist::XsdSchemaParser::readXPathExpression().

{
    QList<QXmlName> bindings;

    QHashIterator<QXmlName::PrefixCode, QXmlName::NamespaceCode> it(m_ns);
    while (it.hasNext()) {
        it.next();
        bindings.append(QXmlName(it.value(), StandardLocalNames::empty, it.key()));
    }

    return bindings;
}

popContext()

void NamespaceSupport::popContext

(

)

Pops the current namespace mapping from the stack.

Definition at line 140 of file qnamespacesupport.cpp.

Referenced by QPatternist::XsdSchemaParser::parseUnknown(), QPatternist::XsdSchemaParser::parseUnknownDocumentation(), and QPatternist::ElementNamespaceHandler::~ElementNamespaceHandler().

{
    m_ns.clear();
    if(!m_nsStack.isEmpty())
        m_ns = m_nsStack.pop();
}

prefix()

QXmlName::PrefixCode NamespaceSupport::prefix

(

const QXmlName::NamespaceCode

code

)

const

Returns the prefix code for the given namespace code.

Definition at line 90 of file qnamespacesupport.cpp.

{
    NamespaceHash::const_iterator itc, it = m_ns.constBegin();
    while ((itc=it) != m_ns.constEnd()) {
        ++it;
        if (*itc == namespaceCode)
            return itc.key();
    }
    return 0;
}

processName()

bool NamespaceSupport::processName	(	const QString &	qualifiedName,
		NameType	type,
		QXmlName &	name
	)		const

Converts the given qualifiedName to a resolved QXmlName name according to the current namespace mapping.

Parameters

qualifiedName	The full qualified name.
type	The type of name processing.
name	The resolved QXmlName.

Returns

true if the name could be processed correctly or false if the namespace prefix is unknown.

Definition at line 106 of file qnamespacesupport.cpp.

Referenced by QPatternist::XsdSchemaParser::convertName().

{
    int len = qname.size();
    const QChar *data = qname.constData();
    for (int pos = 0; pos < len; ++pos) {
        if (data[pos] == QLatin1Char(':')) {
            const QXmlName::PrefixCode prefixCode = m_namePool->allocatePrefix(qname.left(pos));
            if (!m_ns.contains(prefixCode))
                return false;
            const QXmlName::NamespaceCode namespaceCode = uri(prefixCode);
            const QXmlName::LocalNameCode localNameCode = m_namePool->allocateLocalName(qname.mid(pos + 1));
            name = QXmlName(namespaceCode, localNameCode, prefixCode);
            return true;
        }
    }

    // there was no ':'
    QXmlName::NamespaceCode namespaceCode = 0;
    // attributes don't take default namespace
    if (type == ElementName && !m_ns.isEmpty()) {
        namespaceCode = m_ns.value(0);   // get default namespace
    }

    const QXmlName::LocalNameCode localNameCode = m_namePool->allocateLocalName(qname);
    name = QXmlName(namespaceCode, localNameCode, 0);

    return true;
}

pushContext()

void NamespaceSupport::pushContext

(

)

Pushes the current namespace mapping onto the stack.

Definition at line 135 of file qnamespacesupport.cpp.

Referenced by QPatternist::ElementNamespaceHandler::ElementNamespaceHandler(), QPatternist::XsdSchemaParser::parseUnknown(), and QPatternist::XsdSchemaParser::parseUnknownDocumentation().

{
    m_nsStack.push(m_ns);
}

setPrefix()

void NamespaceSupport::setPrefix	(	const QXmlName::PrefixCode	prefixCode,
		const QXmlName::NamespaceCode	namespaceCode
	)

Adds a new prefix-to-namespace binding.

Parameters

prefixCode	The name pool code for the prefix.
namespaceCode	The name pool code for the namespace.

Definition at line 69 of file qnamespacesupport.cpp.

{
    m_ns.insert(prefixCode, namespaceCode);
}

setPrefixes()

void NamespaceSupport::setPrefixes

(

const QXmlStreamNamespaceDeclarations &

declarations

)

Adds the prefix-to-namespace bindings from declarations to the namespace support.

Definition at line 74 of file qnamespacesupport.cpp.

Referenced by QPatternist::ElementNamespaceHandler::ElementNamespaceHandler(), QPatternist::XsdSchemaParser::parseUnknown(), and QPatternist::XsdSchemaParser::parseUnknownDocumentation().

{
    for (int i = 0; i < declarations.count(); i++) {
        const QXmlStreamNamespaceDeclaration declaration = declarations.at(i);

        const QXmlName::PrefixCode prefixCode = m_namePool->allocatePrefix(declaration.prefix().toString());
        const QXmlName::NamespaceCode namespaceCode = m_namePool->allocateNamespace(declaration.namespaceUri().toString());
        m_ns.insert(prefixCode, namespaceCode);
    }
}

setTargetNamespace()

void NamespaceSupport::setTargetNamespace

(

const QXmlName::NamespaceCode

code

)

Sets the name pool code of the target namespace of the schema the namespace support works on.

Definition at line 85 of file qnamespacesupport.cpp.

Referenced by QPatternist::XsdSchemaParser::setTargetNamespaceExtended().

{
    m_ns.insert(0, namespaceCode);
}

uri()

QXmlName::NamespaceCode NamespaceSupport::uri

(

const QXmlName::PrefixCode

code

)

const

Returns the namespace code for the given prefix code.

Definition at line 101 of file qnamespacesupport.cpp.

Referenced by processName().

{
    return m_ns.value(prefixCode);
}

Properties

m_namePool

NamePool* QPatternist::NamespaceSupport::m_namePool

private

Definition at line 163 of file qnamespacesupport_p.h.

Referenced by processName(), and setPrefixes().

m_ns

NamespaceHash QPatternist::NamespaceSupport::m_ns

private

Definition at line 165 of file qnamespacesupport_p.h.

Referenced by namespaceBindings(), NamespaceSupport(), popContext(), prefix(), processName(), pushContext(), setPrefix(), setPrefixes(), setTargetNamespace(), and uri().

m_nsStack

QStack<NamespaceHash> QPatternist::NamespaceSupport::m_nsStack

private

Definition at line 164 of file qnamespacesupport_p.h.

Referenced by popContext(), and pushContext().

---

The documentation for this class was generated from the following files:

• /src/xmlpatterns/schema/qnamespacesupport_p.h
• /src/xmlpatterns/schema/qnamespacesupport.cpp