C++ DOMString::clone方法代码示例

//Introduced in DOM Level 2
XMLDeclImpl::XMLDeclImpl(DocumentImpl *ownerDoc, const DOMString &ver,
                         const DOMString &enc, const DOMString &isStd)
	: ChildNode(ownerDoc),
    version ( ver.clone() ),
    encoding ( enc.clone() ),
    standalone ( isStd.clone() )
{
}

XERCES_CPP_NAMESPACE_BEGIN


ProcessingInstructionImpl::ProcessingInstructionImpl(DocumentImpl *ownerDoc,
                                                     const DOMString &targt,
                                                     const DOMString &dat)
    : ChildNode(ownerDoc)
{
    this->target = targt.clone();
    this->data = dat.clone();
};

XERCES_CPP_NAMESPACE_BEGIN


/**
* Notations are how the Document Type Description (DTD) records hints
* about the format of an XML "unparsed entity" -- in other words,
* non-XML data bound to this document type, which some applications
* may wish to consult when manipulating the document. A Notation
* represents a name-value pair, with its nodeName being set to the
* declared name of the notation.
* <P>
* Notations are also used to formally declare the "targets" of
* Processing Instructions.
* <P>
* Note that the Notation's data is non-DOM information; the DOM only
* records what and where it is.
* <P>
* See the XML 1.0 spec, sections 4.7 and 2.6, for more info.
* <P>
* Level 1 of the DOM does not support editing Notation contents.
*
* @author Rania Y. Khalaf
* @author Joseph Kesselman
* @since  PR-DOM-Level-1-19980818.
*/

NotationImpl::NotationImpl(DocumentImpl *ownerDoc, const DOMString &nName)
    : NodeImpl(ownerDoc)
{
    name = nName.clone();
}

void ProcessingInstructionImpl::setNodeValue(const DOMString &value)
{
    if (isReadOnly())
        throw DOM_DOMException(DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR,
                               null);
    data = value.clone();
};

//Introduced in DOM Level 2
AttrNSImpl::AttrNSImpl(DocumentImpl *ownerDoc,
                       const DOMString &fNamespaceURI,
                       const DOMString &qualifiedName) :
    AttrImpl(ownerDoc, qualifiedName)
{
    DOMString xmlns = NodeImpl::getXmlnsString();
    DOMString xmlnsURI = NodeImpl::getXmlnsURIString();
    this->name = qualifiedName.clone();

    int index = DocumentImpl::indexofQualifiedName(qualifiedName);
    DOMString prefix;
    if (index < 0)
	throw DOM_DOMException(DOM_DOMException::NAMESPACE_ERR, null);
    bool xmlnsAlone = false;	//true if attribute name is "xmlns"
    if (index == 0) {	//qualifiedName contains no ':'
        if (this->name.equals(xmlns)) {
	    if (!fNamespaceURI.equals(xmlnsURI))
		throw DOM_DOMException(DOM_DOMException::NAMESPACE_ERR, null);
	    xmlnsAlone = true;
	}
	prefix = null;
	this -> localName = this -> name;
    } else {	//0 < index < this->name.length()-1
	prefix = this->name.substringData(0, index);
	this -> localName =
            this->name.substringData(index+1, this->name.length()-index-1);
    }

    const DOMString& URI = xmlnsAlone ?
        xmlnsURI : mapPrefix(prefix, fNamespaceURI, DOM_Node::ATTRIBUTE_NODE);
    this -> namespaceURI = URI == null ? DOMString(null) : URI.clone();
};

XERCES_CPP_NAMESPACE_BEGIN


EntityReferenceImpl::EntityReferenceImpl(DocumentImpl *ownerDoc,
                                         const DOMString &entityName)
    : ParentNode(ownerDoc)
{
    name = entityName.clone();
    // EntityReference behaves as a read-only node, since its contents
    // reflect the Entity it refers to -- but see setNodeName().

    //retrieve the corresponding entity content
    if (ownerDoc) {
        if (ownerDoc->getDoctype()) {
            if (ownerDoc->getDoctype()->getEntities()) {
                EntityImpl* entity = (EntityImpl*)ownerDoc->getDoctype()->getEntities()->getNamedItem(entityName);
                if (entity) {
                    EntityReferenceImpl* refEntity = entity->getEntityRef();
                    if (refEntity)
                        cloneChildren(*refEntity);
                }
            }
        }
    }

    setReadOnly(true, true);
}

XERCES_CPP_NAMESPACE_BEGIN


/*
 * The handling of the value field being either the first child node (a
 * ChildNode*) or directly the value (a DOMString) is rather tricky. In the
 * DOMString case we need to get the field in the right type so that the
 * compiler is happy and the appropriate operator gets called. This is
 * essential for the reference counts of the DOMStrings involved to be updated
 * as due.
 * This is consistently achieved by taking the address of the value field and
 * changing it into a DOMString*, and then dereferencing it to get a DOMString.
 * The typical piece of code is:
 * DOMString *x = (DomString *)&value;
 *  ... use of *x which is the DOMString ...
 * This was amended by neilg after memory management was
 * introduced.  Now a union exists which is either a 
 * DOMString * or a ChildNode *.  This will be less efficient
 * (one more dereference per access) but actually works on all the
 * compilers we support.
 */

AttrImpl::AttrImpl(DocumentImpl *ownerDoc, const DOMString &aName)
    : NodeImpl (ownerDoc)
{
    name = aName.clone();
    isSpecified(true);
    hasStringValue(true);
    value.child = null;
};

void CharacterDataImpl::setData(const DOMString &arg)
{
    if (isReadOnly())
        throw DOM_DOMException(DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR,
                               null);
    data = arg.clone();
};

void DOMString::insertData(unsigned int offset, const DOMString &src)
{
    unsigned int origStrLength = this->length();
    if (offset > origStrLength)
        throw DOM_DOMException(DOM_DOMException::INDEX_SIZE_ERR, 0);

    if (fHandle == 0)
    {
        *this = src.clone();
        return;
    }

    if (src.fHandle == 0 || src.fHandle->fLength == 0)
        return;

    XMLCh *srcP = src.fHandle->fDSData->fData;
    unsigned int srcLength = src.fHandle->fLength;
    unsigned int newLength = fHandle->fLength + srcLength;
    if (newLength >= fHandle->fDSData->fBufferLength ||
            fHandle->fDSData->fRefCount > 1  || fHandle == src.fHandle )
    {
        // We can't stick the data to be added into the
        //  existing string, either because there is not space in
        //  the buffer, or because the buffer is being shared with
        //  some other string.
        //  So, make a new buffer.

        DOMStringData *newBuf = DOMStringData::allocateBuffer(newLength+1);
        XMLCh *newP  = newBuf->fData;
        XMLCh *oldP   = fHandle->fDSData->fData;
        unsigned int i;
        for (i=0; i<offset; ++i)
            newP[i] = oldP[i];

        for (i=0; i<srcLength; i++)
            newP[i+offset] = srcP[i];

        for (i=offset; i<origStrLength; i++)
            newP[i+srcLength] = oldP[i];

        fHandle->fDSData->removeRef();
        fHandle->fDSData = newBuf;
    }
    else
    {
        // There is room in the already-existing buffer to hold
        //  the data to be inserted.  Insert it.
        //
        XMLCh *destP = fHandle->fDSData->fData;
        int i;
        for (i=(int)origStrLength-1; i>=(int)offset; i--)
            destP[i+srcLength] = destP[i];

        unsigned int j;
        for (j=0; j<srcLength; j++)
            destP[j+offset] = srcP[j];
    }

    fHandle->fLength += srcLength;
}

/**
* Change the data content of this PI.
* Note that setNodeValue is aliased to setData
* @see getData().
* @throws DOMException(NO_MODIFICATION_ALLOWED_ERR) if node is read-only.
*/
void ProcessingInstructionImpl::setData(const DOMString &arg)
{
    if (isReadOnly())
        throw DOM_DOMException(DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR,
                               null);
    data = arg.clone();
};

void NotationImpl::setSystemId(const DOMString &arg)
{
    if(isReadOnly())
        throw DOM_DOMException(
        DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR,null);

    systemId = arg.clone();
}

XERCES_CPP_NAMESPACE_BEGIN


EntityImpl::EntityImpl(DocumentImpl *ownerDoc, const DOMString &eName)
   : ParentNode(ownerDoc)
{
    name        = eName.clone();
    setReadOnly(true, true);
}

XERCES_CPP_NAMESPACE_BEGIN


CharacterDataImpl::CharacterDataImpl(DocumentImpl *ownerDoc,
                                     const DOMString &dat)
    : ChildNode(ownerDoc)
{
    this->data = dat.clone();
};

XERCES_CPP_NAMESPACE_BEGIN



ElementDefinitionImpl::ElementDefinitionImpl(DocumentImpl *ownerDoc,
                                             const DOMString &nam)
    : NodeImpl(ownerDoc)
{
    name = nam.clone();
    attributes = 0;
};

XERCES_CPP_NAMESPACE_BEGIN


EntityImpl::EntityImpl(DocumentImpl *ownerDoc, const DOMString &eName)
   : ParentNode(ownerDoc),
	refEntity(0)

{
    name        = eName.clone();
    setReadOnly(true, true);
}   /* SPEC_CPU: removed extra ';' for C++98 standards compliance -- yag */