QtXml questions

[Fastman]

I need to realize a class for parsing configuration files with following features:

(1): GetNodeValue(QString cnode, QString &cvaluenode, int count) const

For example

XmlParser pXmlParser;
 
	if(!pXmlParser.OpenXml(cCmd))
			return false;
 
	QString cTmp;
	QString cValue;
	QString cXml;
 
	cXml = "node1/node2/node3"; // <- Thus I need to specify root
 
	cTmp = cXml + "/brw"; //  <-  specify Node
	pXmlParser.GetNodeValue(cTmp, cValue); // <- get value this node
	m_psInfoUser.bOnBrowse = cValue == "1" ? true : false;

XmlParser pXmlParser;

	if(!pXmlParser.OpenXml(cCmd))
			return false;

	QString cTmp;
	QString cValue;
	QString cXml;

	cXml = "node1/node2/node3"; // <- Thus I need to specify root

	cTmp = cXml + "/brw"; //  <-  specify Node
	pXmlParser.GetNodeValue(cTmp, cValue); // <- get value this node
	m_psInfoUser.bOnBrowse = cValue == "1" ? true : false;

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(2) GetNodeList(QString cnode, StrVector &nodes) const
(3) GetNodeNameList(QString cnode, StrVector &nodes) const
(4) GetAttrList(QString cnode, QString nameattr, StrVector &attr) const
(5) GetAttrValue(QString cnode, QString nameattr, QString& valattr, int count) const

What advise to esteem, and there are some ready examples which it can is possible to take for a basis?

[wysota]

I think you should use the DOM approach - see QDomDocument and friends. Using Patternist (available in 4.4 snapshots) is an option as well.

[Fastman]

Hmm.... Now I study documents on QDomDocument. But has not found how I knowing a way to my element I can receive its value.
For example I have structure:

<?xml version="1.0" encoding="windows-1251"?>
<root>
    <client>
        <prof>
            <brw>1</brw>
            <srch>1</srch>
            <reg>1</reg>
            <edm>1</edm>
            <edd>1</edd>
            <mgn>1</mgn>
        </prof>
    </client>
</root>

<?xml version="1.0" encoding="windows-1251"?>
<root>
    <client>
        <prof>
            <brw>1</brw>
            <srch>1</srch>
            <reg>1</reg>
            <edm>1</edm>
            <edd>1</edd>
            <mgn>1</mgn>
        </prof>
    </client>
</root>

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I can directly on a way of an element take value or me will have to bypass all elements searching the for the ?

[wysota]

QDomDocument doc;
doc.setContent(...);
//...
QDomElement root = doc.documentElement();
QDomElement srch = root.firstChildElement("client").firstChildElement("prof").firstChildElement("srch");
QString s = srch.text(); // s=="1"

QDomDocument doc;
doc.setContent(...);
//...
QDomElement root = doc.documentElement();
QDomElement srch = root.firstChildElement("client").firstChildElement("prof").firstChildElement("srch");
QString s = srch.text(); // s=="1"

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[Fastman]

QDomDocument doc;
doc.setContent(...);
//...
QDomElement root = doc.documentElement();
QDomElement srch = root.firstChildElement("client").firstChildElement("prof").firstChildElement("srch");
QString s = srch.text(); // s=="1"

QDomDocument doc;
doc.setContent(...);
//...
QDomElement root = doc.documentElement();
QDomElement srch = root.firstChildElement("client").firstChildElement("prof").firstChildElement("srch");
QString s = srch.text(); // s=="1"

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Thx Wysota !!!
my code:

bool  XmlParser::GetNodeValue(QString cnode, QString &cvaluenode, qint16 count)
{
	QStringList listNodes = cnode.split("/");
 
	QDomElement root = doc->documentElement();
	QDomElement srch = root.firstChildElement(listNodes.at(1));
 
	for (qint8 i = 2; i < listNodes.size(); i++)
	{
		srch = srch.firstChildElement(listNodes.at(i));
	}
 
	cvaluenode = srch.text();
 
	return true;
}

bool  XmlParser::GetNodeValue(QString cnode, QString &cvaluenode, qint16 count)
{
	QStringList listNodes = cnode.split("/");

	QDomElement root = doc->documentElement();
	QDomElement srch = root.firstChildElement(listNodes.at(1));

	for (qint8 i = 2; i < listNodes.size(); i++)
	{
		srch = srch.firstChildElement(listNodes.at(i));
	}

	cvaluenode = srch.text();

	return true;
}

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...
cXml = "root/client/prof";
 
	cTmp = cXml + "/brw";
	pXmlParser.GetNodeValue(cTmp, cValue);
	m_psInfoUser.bOnBrowse = cValue == "1" ? true : false;
...

...
cXml = "root/client/prof";

	cTmp = cXml + "/brw";
	pXmlParser.GetNodeValue(cTmp, cValue);
	m_psInfoUser.bOnBrowse = cValue == "1" ? true : false;
...

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