Referencia de la Clase QXmlNamespaceSupport

The QXmlNamespaceSupport class is a helper class for XML readers which want to include namespace support.XMLYou can set the prefix for the current namespace with setPrefix(), and get the list of current prefixes (or those for a given URI) with prefixes(). The namespace URI is available from uri(). Use pushContext() to start a new namespace context, and popContext() to return to the previous namespace context. Use splitName() or processName() to split a name into its prefix and local name. Más...

#include <qxml.h>

Lista de todos los miembros.

Métodos públicos
	QXmlNamespaceSupport ()
	~QXmlNamespaceSupport ()
void	setPrefix (const QString &, const QString &)
QString	prefix (const QString &) const
QString	uri (const QString &) const
void	splitName (const QString &, QString &, QString &) const
void	processName (const QString &, bool, QString &, QString &) const
QStringList	prefixes () const
QStringList	prefixes (const QString &) const
void	pushContext ()
void	popContext ()
void	reset ()
	QXmlNamespaceSupport ()
	~QXmlNamespaceSupport ()
void	setPrefix (const QString &, const QString &)
QString	prefix (const QString &) const
QString	uri (const QString &) const
void	splitName (const QString &, QString &, QString &) const
void	processName (const QString &, bool, QString &, QString &) const
QStringList	prefixes () const
QStringList	prefixes (const QString &) const
void	pushContext ()
void	popContext ()
void	reset ()
Amigas
class	QXmlSimpleReader

---

Descripción detallada

The QXmlNamespaceSupport class is a helper class for XML readers which want to include namespace support.

XML

You can set the prefix for the current namespace with setPrefix(), and get the list of current prefixes (or those for a given URI) with prefixes(). The namespace URI is available from uri(). Use pushContext() to start a new namespace context, and popContext() to return to the previous namespace context. Use splitName() or processName() to split a name into its prefix and local name.

See also the namespace description.

---

Documentación del constructor y destructor

QXmlNamespaceSupport::QXmlNamespaceSupport

(

)

Constructs a QXmlNamespaceSupport.

QXmlNamespaceSupport::~QXmlNamespaceSupport

(

)

Destroys a QXmlNamespaceSupport.

QXmlNamespaceSupport::QXmlNamespaceSupport

(

)

QXmlNamespaceSupport::~QXmlNamespaceSupport

(

)

---

Documentación de las funciones miembro

void QXmlNamespaceSupport::popContext

(

)

Reverts to the previous namespace context.

Normally, you should pop the context at the end of each XML element. After popping the context, all namespace prefix mappings that were previously in force are restored.

Ver también:

pushContext()

void QXmlNamespaceSupport::popContext

(

)

QString QXmlNamespaceSupport::prefix

(

const QString &

uri

)

const

Returns one of the prefixes mapped to the namespace URI uri.

If more than one prefix is currently mapped to the same URI, this function makes an arbitrary selection; if you want all of the prefixes, use prefixes() instead.

Note: to check for a default prefix, use the uri() function with an argument of "".

QString QXmlNamespaceSupport::prefix

(

const QString &

)

const

QStringList QXmlNamespaceSupport::prefixes

(

const QString &

)

const

QStringList QXmlNamespaceSupport::prefixes

(

)

const

QStringList QXmlNamespaceSupport::prefixes

(

)

const

Returns a list of all the prefixes currently declared.

If there is a default prefix, this function does not return it in the list; check for the default prefix using uri() with an argument of "".

Note that if you want to iterate over the list, you should iterate over a copy, e.g.

    QStringList list = myXmlNamespaceSupport.prefixes();
    QStringList::iterator it = list.begin();
    while ( it != list.end() ) {
        myProcessing( *it );
        ++it;
    }

QStringList QXmlNamespaceSupport::prefixes

(

const QString &

uri

)

const

Esta es una función miembro sobrecargada que se suministra por conveniencia. Difiere de la anterior función solamente en los argumentos que acepta. Returns a list of all prefixes currently declared for the namespace URI uri.

The "xml:" prefix is included. If you only want one prefix that is mapped to the namespace URI, and you don't care which one you get, use the prefix() function instead.

Note: the empty (default) prefix is never included in this list; to check for the presence of a default namespace, use uri() with an argument of "".

Note that if you want to iterate over the list, you should iterate over a copy, e.g.

    QStringList list = myXmlNamespaceSupport.prefixes( "" );
    QStringList::Iterator it = list.begin();
    while( it != list.end() ) {
        myProcessing( *it );
        ++it;
    }

void QXmlNamespaceSupport::processName	(	const QString &	qname,
		bool	isAttribute,
		QString &	nsuri,
		QString &	localname
	)		const

Processes a raw XML 1.0 name in the current context by removing the prefix and looking it up among the prefixes currently declared.

qname is the raw XML 1.0 name to be processed. isAttribute is TRUE if the name is an attribute name.

This function stores the namespace URI in nsuri (which will be set to QString::null if the raw name has an undeclared prefix), and stores the local name (without prefix) in localname (which will be set to QString::null if no namespace is in use).

Note that attribute names are processed differently than element names: an unprefixed element name gets the default namespace (if any), while an unprefixed element name does not.

void QXmlNamespaceSupport::processName	(	const QString &	,
		bool	,
		QString &	,
		QString &
	)		const

void QXmlNamespaceSupport::pushContext

(

)

Starts a new namespace context.

Normally, you should push a new context at the beginning of each XML element: the new context automatically inherits the declarations of its parent context, and it also keeps track of which declarations were made within this context.

Ver también:

popContext()

void QXmlNamespaceSupport::pushContext

(

)

void QXmlNamespaceSupport::reset

(

void

)

Resets this namespace support object ready for reuse.

void QXmlNamespaceSupport::reset

(

)

void QXmlNamespaceSupport::setPrefix	(	const QString &	pre,
		const QString &	uri
	)

This function declares a prefix pre in the current namespace context to be the namespace URI uri. The prefix remains in force until this context is popped, unless it is shadowed in a descendant context.

Note that there is an asymmetry in this library. prefix() does not return the default "" prefix, even if you have declared one; to check for a default prefix, you must look it up explicitly using uri(). This asymmetry exists to make it easier to look up prefixes for attribute names, where the default prefix is not allowed.

void QXmlNamespaceSupport::setPrefix	(	const QString &	,
		const QString &
	)

void QXmlNamespaceSupport::splitName	(	const QString &	qname,
		QString &	prefix,
		QString &	localname
	)		const

Splits the name qname at the ':' and returns the prefix in prefix and the local name in localname.

Ver también:

processName()

void QXmlNamespaceSupport::splitName	(	const QString &	,
		QString &	,
		QString &
	)		const

QString QXmlNamespaceSupport::uri

(

const QString &

prefix

)

const

Looks up the prefix prefix in the current context and returns the currently-mapped namespace URI. Use the empty string ("") for the default namespace.

QString QXmlNamespaceSupport::uri

(

const QString &

)

const

---

Documentación de las funciones relacionadas y clases amigas

QXmlSimpleReader [friend]

---

La documentación para esta clase fue generada a partir de los siguientes ficheros:

• src/qt/include/qxml.h
• src/qt/src/xml/qxml.h
• src/qt/src/xml/qxml.cpp