qBittorrent/src/json.h

/*
 * Bittorrent Client using Qt4 and libtorrent.
 * Copyright (C) 2006  Ishan Arora and Christophe Dumez
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * In addition, as a special exception, the copyright holders give permission to
 * link this program with the OpenSSL project's "OpenSSL" library (or with
 * modified versions of it that use the same license as the "OpenSSL" library),
 * and distribute the linked executables. You must obey the GNU General Public
 * License in all respects for all of the code used other than "OpenSSL".  If you
 * modify file(s), you may extend this exception to your version of the file(s),
 * but you are not obligated to do so. If you do not wish to do so, delete this
 * exception statement from your version.
 *
 * Contact : chris@qbittorrent.org
 */


#ifndef JSON_H
#define JSON_H

#include <QVariant>

namespace json {

    QString toJson(QVariant v) {
        if (v.isNull())
            return "null";
        switch(v.type())
        {
                case QVariant::Bool:
                case QVariant::Double:
                case QVariant::Int:
                case QVariant::LongLong:
                case QVariant::UInt:
                case QVariant::ULongLong:
            return v.value<QString>();
                case QVariant::String:
            {
                QString s = v.value<QString>();
                QString result = "\"";
                for(int i=0; i<s.size(); i++)
                {
                    QChar ch = s[i];
                    switch(ch.toAscii())
                    {
                                        case '\b':
                        result += "\\b";
                        break;
                                        case '\f':
                        result += "\\f";
                        break;
                                        case '\n':
                        result += "\\n";
                        break;
                                        case '\r':
                        result += "\\r";
                        break;
                                        case '\t':
                        result += "\\t";
                        break;
                                        case '\"':
                                        case '\'':
                                        case '\\':
                                        case '&':
                        result += '\\';
                                        case '\0':
                                        default:
                        result += ch;
                    }
                }
                result += "\"";
                return result;
            }
            default:
                return "undefined";
        }
    }

   QString toJson(QList<QVariantMap> v) {
        QStringList res;
        foreach(QVariantMap m, v) {
            QStringList vlist;
            foreach(QString key, m.keys()) {
                vlist << toJson(key)+":"+toJson(m[key]);
            }
            res << "{"+vlist.join(",")+"}";
        }
        return "["+res.join(",")+"]";
    }
}

#endif