/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QtCore module of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#ifndef QCORECMDLINEARGS_P_H

#define QCORECMDLINEARGS_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include "QtCore/qstring.h"

#include "QtCore/qstringlist.h"

QT_BEGIN_NAMESPACE

#if defined(Q_OS_WIN32) || defined(Q_OS_WINCE)

QT_BEGIN_INCLUDE_NAMESPACE

#include "QtCore/qvector.h"

#include "qt_windows.h"

QT_END_INCLUDE_NAMESPACE

// template implementation of the parsing algorithm

// this is used from qcoreapplication_win.cpp and the tools (rcc, uic...)

template<typename Char>

static QVector<Char*> qWinCmdLine(Char *cmdParam, int length, int &argc)

{

    QVector<Char*> argv(8);

    Char *p = cmdParam;

    Char *p_end = p + length;

    argc = 0;

    while (*p && p < p_end) {                                // parse cmd line arguments

        while (QChar((short)(*p)).isSpace())                          // skip white space

            p++;

        if (*p && p < p_end) {                                // arg starts

            int quote;

            Char *start, *r;

            if (*p == Char('\"') || *p == Char('\'')) {        // " or ' quote

                quote = *p;

                start = ++p;

            } else {

                quote = 0;

                start = p;

            }

            r = start;

            while (*p && p < p_end) {

                if (quote) {

                    if (*p == quote) {

                        p++;

                        if (QChar((short)(*p)).isSpace())

                            break;

                        quote = 0;

                    }

                }

                if (*p == '\\') {                // escape char?

                    p++;

                    if (*p == Char('\"') || *p == Char('\''))

                        ;                        // yes

                    else

                        p--;                        // treat \ literally

                } else {

                    if (!quote && (*p == Char('\"') || *p == Char('\''))) {        // " or ' quote

                        quote = *p++;

                        continue;

                    } else if (QChar((short)(*p)).isSpace() && !quote)

                        break;

                }

                if (*p)

                    *r++ = *p++;

            }

            if (*p && p < p_end)

                p++;

            *r = Char('\0');

            if (argc >= (int)argv.size()-1)        // expand array

                argv.resize(argv.size()*2);

            argv[argc++] = start;

        }

    }

    argv[argc] = 0;

    return argv;

}

static inline QStringList qWinCmdArgs(QString cmdLine) // not const-ref: this might be modified

{

    QStringList args;

    int argc = 0;

    QVector<wchar_t*> argv = qWinCmdLine<wchar_t>((wchar_t *)cmdLine.utf16(), cmdLine.length(), argc);

    for (int a = 0; a < argc; ++a) {

        args << QString::fromWCharArray(argv[a]);

    }

    return args;

}

static inline QStringList qCmdLineArgs(int argc, char *argv[])

{

    Q_UNUSED(argc)

    Q_UNUSED(argv)

    QString cmdLine = QString::fromWCharArray(GetCommandLine());

    return qWinCmdArgs(cmdLine);

}

#else  // !Q_OS_WIN

static inline QStringList qCmdLineArgs(int argc, char *argv[])

{

    QStringList args;

	for (int i = 0; i != argc; ++i)

        args += QString::fromLocal8Bit(argv[i]);

    return args;

}

#endif // Q_OS_WIN

QT_END_NAMESPACE

#endif // QCORECMDLINEARGS_WIN_P_H