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main.cpp Example File
xmlpatterns/filetree/main.cpp

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 #include <QtCore/QCoreApplication>
 #include <QtCore/QFile>
 #include <QtCore/QLibraryInfo>
 #include <QtCore/QStringList>
 #include <QtCore/QTextStream>
 #include <QtXmlPatterns/QXmlNamePool>
 #include <QtXmlPatterns/QXmlQuery>
 #include <QtXmlPatterns/QXmlSerializer>

 #include "filetree.h"

 int main(int argc, char **argv)
 {
     enum {
         WrongArguments = 1,
         FileError,
         InvalidQuery
     };

     QCoreApplication app(argc, argv);

     if (app.arguments().count() < 2) {
         QTextStream(stderr) << "No query file or directory provided." << endl
                             << "filetree file.xq dir_path" << endl;
         return WrongArguments;
     }

     if (app.arguments().count() > 3) {
         QTextStream(stderr) << "Too many arguments." << endl
                             << "filetree file.xq dir_path" << endl;
         return WrongArguments;
     }

     QFile file(app.arguments().at(1));

     if (!file.open(QIODevice::ReadOnly)) {
         QTextStream(stderr) << "Failed to open " << file.fileName() << endl;
         return FileError;
     }

     QXmlQuery query;
     FileTree fileTree(query.namePool());
     query.setQuery(&file, QUrl::fromLocalFile(file.fileName()));

     QString dir;

     if (app.arguments().count() == 2)
         dir = QLibraryInfo::location(QLibraryInfo::ExamplesPath);
     else
         dir = app.arguments().at(2);

     query.bindVariable(QLatin1String("exampleDirectory"),fileTree.nodeFor(dir));

     if(!query.isValid())
         return InvalidQuery;

     QFile out;
     out.open(stdout, QIODevice::WriteOnly);

     QXmlSerializerPointer serializer(new QXmlSerializer(query, &out));
     query.evaluateToReceiver(serializer);

     return 0;
 }


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Qt 4.4.0-beta1