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main.cpp Example File

xml/htmlinfo/main.cpp
 /****************************************************************************
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 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
 ** Contact: http://www.qt-project.org/
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 ** This file is part of the examples of the Qt Toolkit.
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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;
     }

     QXmlStreamReader reader(&file);

     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;
         }
     }

     if (reader.hasError()) {
         out << "  The HTML file isn't well-formed: " << reader.errorString()
             << endl << endl << endl;
         return;
     }

     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)
 {
     // initialize 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(":/").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;
 }
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