examples/xml/htmlinfo/main.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the examples of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include <QtCore>
       
    43 
       
    44 void parseHtmlFile(QTextStream &out, const QString &fileName) {
       
    45     QFile file(fileName);
       
    46 
       
    47     out << "Analysis of HTML file: " << fileName << endl;
       
    48 
       
    49     if (!file.open(QIODevice::ReadOnly)) {
       
    50         out << "  Couldn't open the file." << endl << endl << endl;
       
    51         return;
       
    52     }
       
    53 
       
    54 //! [0]
       
    55     QXmlStreamReader reader(&file);
       
    56 //! [0]
       
    57 
       
    58 //! [1]
       
    59     int paragraphCount = 0;
       
    60     QStringList links;
       
    61     QString title;
       
    62     while (!reader.atEnd()) {
       
    63         reader.readNext();
       
    64         if (reader.isStartElement()) {
       
    65             if (reader.name() == "title")
       
    66                 title = reader.readElementText();
       
    67             else if(reader.name() == "a")
       
    68                 links.append(reader.attributes().value("href").toString());
       
    69             else if(reader.name() == "p")
       
    70                 ++paragraphCount;
       
    71         }
       
    72     }
       
    73 //! [1]
       
    74 
       
    75 //! [2]
       
    76     if (reader.hasError()) {
       
    77         out << "  The HTML file isn't well-formed: " << reader.errorString()
       
    78             << endl << endl << endl;
       
    79         return;
       
    80     }
       
    81 //! [2]
       
    82 
       
    83     out << "  Title: \"" << title << "\"" << endl
       
    84         << "  Number of paragraphs: " << paragraphCount << endl
       
    85         << "  Number of links: " << links.size() << endl
       
    86         << "  Showing first few links:" << endl;
       
    87 
       
    88     while(links.size() > 5)
       
    89         links.removeLast();
       
    90 
       
    91     foreach(QString link, links)
       
    92         out << "    " << link << endl;
       
    93     out << endl << endl;
       
    94 }
       
    95 
       
    96 int main(int argc, char **argv)
       
    97 {
       
    98     // intialize QtCore application
       
    99     QCoreApplication app(argc, argv);
       
   100 
       
   101     // get a list of all html files in the current directory
       
   102     QStringList filter;
       
   103     filter << "*.htm";
       
   104     filter << "*.html";
       
   105     QStringList htmlFiles = QDir::current().entryList(filter, QDir::Files);
       
   106 
       
   107     QTextStream out(stdout);
       
   108 
       
   109     if (htmlFiles.isEmpty()) {
       
   110         out << "No html files available.";
       
   111         return 1;
       
   112     }
       
   113 
       
   114     // parse each html file and write the result to file/stream
       
   115     foreach(QString file, htmlFiles)
       
   116         parseHtmlFile(out, file);
       
   117 
       
   118     return 0;
       
   119 }