/***************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact:  Qt Software Information (qt-info@nokia.com)
**
**
** Non-Open Source Usage
**
** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the packaging
** of this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt GPL Exception
** version 1.2, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/

#ifndef OPTIONSPARSER_H
#define OPTIONSPARSER_H

#include "pluginmanager_p.h"

#include <QtCore/QStringList>
#include <QtCore/QMap>

namespace ExtensionSystem {
namespace Internal {

class OptionsParser
{
public:
    OptionsParser(const QStringList &args,
        const QMap<QString, bool> &appOptions,
        QMap<QString, QString> *foundAppOptions,
        QString *errorString,
        PluginManagerPrivate *pmPrivate);
    
    bool parse();

    static const char *NO_LOAD_OPTION;
    static const char *TEST_OPTION;
private:
    // return value indicates if the option was processed
    // it doesn't indicate success (--> m_hasError)
    bool checkForEndOfOptions();
    bool checkForNoLoadOption();
    bool checkForTestOption();
    bool checkForAppOption();
    bool checkForPluginOption();
    bool checkForUnknownOption();

    enum TokenType { OptionalToken, RequiredToken };
    bool nextToken(TokenType type = OptionalToken);
    
    const QStringList &m_args;
    const QMap<QString, bool> &m_appOptions;
    QMap<QString, QString> *m_foundAppOptions;
    QString *m_errorString;
    PluginManagerPrivate *m_pmPrivate;
    
    // state
    QString m_currentArg;
    QStringList::const_iterator m_it;
    QStringList::const_iterator m_end;
    bool m_isDependencyRefreshNeeded;
    bool m_hasError;
};

} // namespace Internal
} // namespace ExtensionSystem

#endif // OPTIONSPARSER_H