encodingdetector.h

/*
    This file was taken from the KDE 4.x libraries and backported to TQt 3.
 
    Copyright (C) 1999 Lars Knoll (knoll@mpi-hd.mpg.de)
    Copyright (C) 2007 Nick Shaforostoff (shafff@ukr.net)
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library 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
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 
*/
#ifndef ENCODINGDETECTOR_H
#define ENCODINGDETECTOR_H
 
#include <tqstring.h>
 
class TQTextCodec;
class TQTextDecoder;
class EncodingDetectorPrivate;
 
class EncodingDetector
{
public:
    enum EncodingChoiceSource
    {
        DefaultEncoding,
        AutoDetectedEncoding,
        BOM,
        EncodingFromXMLHeader,
        EncodingFromMetaTag,
        EncodingFromHTTPHeader,
        UserChosenEncoding
    };
 
    enum AutoDetectScript
    {
        None,
        SemiautomaticDetection,
        Arabic,
        Baltic,
        CentralEuropean,
        ChineseSimplified,
        ChineseTraditional,
        Cyrillic,
        Greek,
        Hebrew,
        Japanese,
        Korean,
        NorthernSaami,
        SouthEasternEurope,
        Thai,
        Turkish,
        Unicode,
        WesternEuropean
    };
 
    EncodingDetector();
 
    EncodingDetector(TQTextCodec* codec, EncodingChoiceSource source, AutoDetectScript script=None);
    ~EncodingDetector();
 
    //const TQTextCodec* codec() const;
 
    bool setEncoding(const char *encoding, EncodingChoiceSource type);
 
    const char* encoding() const;
 
    bool visuallyOrdered() const;
 
//     void setAutoDetectLanguage( const TQString& );
//     const TQString& autoDetectLanguage() const;
 
    void setAutoDetectLanguage( AutoDetectScript );
    AutoDetectScript autoDetectLanguage() const;
 
    EncodingChoiceSource encodingChoiceSource() const;
 
    bool analyze( const char *data, int len );
 
    bool analyze( const TQByteArray &data );
 
    static AutoDetectScript scriptForName(const TQString& lang);
    static TQString nameForScript(AutoDetectScript);
    static AutoDetectScript scriptForLanguageCode(const TQString &lang);
    static bool hasAutoDetectionForScript(AutoDetectScript);
 
protected:
    bool errorsIfUtf8 (const char* data, int length);
 
    TQTextDecoder* decoder();
 
private:
    EncodingDetectorPrivate* const d;
};
 
#endif