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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/

#ifndef TEXTFILEFORMAT_H
#define TEXTFILEFORMAT_H

#include "utils_global.h"

QT_BEGIN_NAMESPACE
class QTextCodec;
class QStringList;
class QString;
class QByteArray;
QT_END_NAMESPACE

namespace Utils {

class QTCREATOR_UTILS_EXPORT TextFileFormat  {
public:
    enum LineTerminationMode
    {
        LFLineTerminator,
        CRLFLineTerminator,
        NativeLineTerminator =
#if defined (Q_OS_WIN)
        CRLFLineTerminator,
#else
        LFLineTerminator
#endif
    };

    enum ReadResult
    {
        ReadSuccess,
        ReadEncodingError,
        ReadMemoryAllocationError,
        ReadIOError
    };

    TextFileFormat();

    static TextFileFormat detect(const QByteArray &data);

    bool decode(const QByteArray &data, QString *target) const;
    bool decode(const QByteArray &data, QStringList *target) const;

    static ReadResult readFile(const QString &fileName, const QTextCodec *defaultCodec,
                               QStringList *plainText, TextFileFormat *format, QString *errorString,
                               QByteArray *decodingErrorSample = 0);
    static ReadResult readFile(const QString &fileName, const QTextCodec *defaultCodec,
                               QString *plainText, TextFileFormat *format, QString *errorString,
                               QByteArray *decodingErrorSample = 0);
    static ReadResult readFileUTF8(const QString &fileName, QByteArray *plainText,
                                   QString *errorString); // TODO: Remove this version.
    static ReadResult readFileUTF8(const QString &fileName, const QTextCodec *defaultCodec,
                                   QByteArray *plainText, QString *errorString);

    bool writeFile(const QString &fileName, QString plainText, QString *errorString) const;

    static QByteArray decodingErrorSample(const QByteArray &data);

    LineTerminationMode lineTerminationMode;
    bool hasUtf8Bom;
    const QTextCodec *codec;
};

} // namespace Utils

#endif // TEXTFILEFORMAT_H