Method writeStartElement

base/poco/XML/src/XMLWriter.cpp:588–633

void XMLWriter::writeStartElement(const XMLString& namespaceURI, const XMLString& localName, const XMLString& qname, const Attributes& attributes)
{
	if (!_nsContextPushed)
		_namespaces.pushContext();
	_nsContextPushed = false;
	++_elementCount;
	
	declareAttributeNamespaces(attributes);

	writeMarkup(MARKUP_LT);
	if (!localName.empty() && (qname.empty() || localName == qname))
	{
		XMLString prefix;
		if (!namespaceURI.empty() && !_namespaces.isMapped(namespaceURI))
		{
			prefix = uniquePrefix();
			_namespaces.declarePrefix(prefix, namespaceURI);
		}
		else prefix = _namespaces.getPrefix(namespaceURI);
		writeName(prefix, localName);
	}
	else if (namespaceURI.empty() && localName.empty() && !qname.empty())
	{
		writeXML(qname);
	}
	else if (!localName.empty() && !qname.empty())
	{
		XMLString local;
		XMLString prefix;
		Name::split(qname, prefix, local);
		if (prefix.empty()) prefix = _namespaces.getPrefix(namespaceURI);
		const XMLString& uri = _namespaces.getURI(prefix);
		if ((uri.empty() || uri != namespaceURI) && !namespaceURI.empty())
		{
			_namespaces.declarePrefix(prefix, namespaceURI);
		}
		writeName(prefix, localName);
	}
	else throw XMLException("Tag mismatch", nameToString(localName, qname));

	AttributeMap attributeMap;
	addNamespaceAttributes(attributeMap);
	addAttributes(attributeMap, attributes, namespaceURI);
	writeAttributes(attributeMap);
	_unclosedStartTag = true;
}


void XMLWriter::writeCanonicalStartElement(const XMLString& namespaceURI, const XMLString& localName, const XMLString& qname, const Attributes& attributes)