Is this the correct way of doing this?
QFile file("./books.xml");
doc.setContent(&file, true);
QXmlQuery query;
query.bindVariable("xmlDoc", &xmlBuffer);
query.setQuery("doc($xmlDoc)/bookstore/book[price>30]/title");
query.evaluateTo(&testOutput);
cout << testOutput.toStdString() << endl;
QFile file("./books.xml");
QDomDocument doc;
doc.setContent(&file, true);
QByteArray xmlDoc = doc.toByteArray();
QBuffer xmlBuffer(&xmlDoc);
xmlBuffer.open(QIODevice::ReadOnly);
QXmlQuery query;
query.bindVariable("xmlDoc", &xmlBuffer);
query.setQuery("doc($xmlDoc)/bookstore/book[price>30]/title");
QString testOutput;
query.evaluateTo(&testOutput);
cout << testOutput.toStdString() << endl;
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Given the contents of books.xml (shown at bottom of this post), I get the following results (which appear correct).
<title lang="en">XQuery Kick Start</title>
<title lang="en">Learning XML</title>
<title lang="en">XQuery Kick Start</title>
<title lang="en">Learning XML</title>
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books.xml contents:
<?xml version="1.0" encoding="ISO-8859-1"?>
<bookstore>
<book category="COOKING">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="CHILDREN">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
<book category="WEB">
<title lang="en">XQuery Kick Start</title>
<author>James McGovern</author>
<author>Per Bothner</author>
<author>Kurt Cagle</author>
<author>James Linn</author>
<author>Vaidyanathan Nagarajan</author>
<year>2003</year>
<price>49.99</price>
</book>
<book category="WEB">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<price>39.95</price>
</book>
</bookstore>
<?xml version="1.0" encoding="ISO-8859-1"?>
<bookstore>
<book category="COOKING">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="CHILDREN">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
<book category="WEB">
<title lang="en">XQuery Kick Start</title>
<author>James McGovern</author>
<author>Per Bothner</author>
<author>Kurt Cagle</author>
<author>James Linn</author>
<author>Vaidyanathan Nagarajan</author>
<year>2003</year>
<price>49.99</price>
</book>
<book category="WEB">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<price>39.95</price>
</book>
</bookstore>
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