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#include <QtCore>

void parseHtmlFile(QTextStream &out, const QString &fileName) {

    QFile file(fileName);

    out << "Analysis of HTML file: " << fileName << endl;

    if (!file.open(QIODevice::ReadOnly)) {

        out << "  Couldn't open the file." << endl << endl << endl;

        return;

    }

//! [0]

    QXmlStreamReader reader(&file);

//! [0]

//! [1]

    int paragraphCount = 0;

    QStringList links;

    QString title;

    while (!reader.atEnd()) {

        reader.readNext();

        if (reader.isStartElement()) {

            if (reader.name() == "title")

                title = reader.readElementText();

            else if(reader.name() == "a")

                links.append(reader.attributes().value("href").toString());

            else if(reader.name() == "p")

                ++paragraphCount;

        }

    }

//! [1]

//! [2]

    if (reader.hasError()) {

        out << "  The HTML file isn't well-formed: " << reader.errorString()

            << endl << endl << endl;

        return;

    }

//! [2]

    out << "  Title: \"" << title << "\"" << endl

        << "  Number of paragraphs: " << paragraphCount << endl

        << "  Number of links: " << links.size() << endl

        << "  Showing first few links:" << endl;

    while(links.size() > 5)

        links.removeLast();

    foreach(QString link, links)

        out << "    " << link << endl;

    out << endl << endl;

}

int main(int argc, char **argv)

{

    // intialize QtCore application

    QCoreApplication app(argc, argv);

    // get a list of all html files in the current directory

    QStringList filter;

    filter << "*.htm";

    filter << "*.html";

    QStringList htmlFiles = QDir::current().entryList(filter, QDir::Files);

    QTextStream out(stdout);

    if (htmlFiles.isEmpty()) {

        out << "No html files available.";

        return 1;

    }

    // parse each html file and write the result to file/stream

    foreach(QString file, htmlFiles)

        parseHtmlFile(out, file);

    return 0;

}