/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the Qt Linguist of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "translator.h"+
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+
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#include <QtCore/QByteArray>+
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#include <QtCore/QDebug>+
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#include <QtCore/QTextCodec>+
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#include <QtCore/QTextStream>+
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+
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#include <QtXml/QXmlStreamReader>+
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#include <QtXml/QXmlStreamAttribute>+
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+
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QT_BEGIN_NAMESPACE+
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+
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class QPHReader : public QXmlStreamReader+
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{+
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public:+
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    QPHReader(QIODevice &dev)+
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      : QXmlStreamReader(&dev)+
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    {}+
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+
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    // the "real thing"+
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    bool read(Translator &translator);+
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+
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private:+
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    bool isWhiteSpace() const+
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    {+
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        return isCharacters() && text().toString().trimmed().isEmpty();+
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    }+
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+
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    enum DataField { NoField, SourceField, TargetField, DefinitionField };+
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    DataField m_currentField;+
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    QString m_currentSource;+
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    QString m_currentTarget;+
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    QString m_currentDefinition;+
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};+
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+
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bool QPHReader::read(Translator &translator)+
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{+
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    m_currentField = NoField;+
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    QString result;+
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    while (!atEnd()) {+
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        readNext();+
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        if (isStartElement()) {+
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            if (name() == QLatin1String("source")) {+
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                m_currentField = SourceField;+
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            } else if (name() == QLatin1String("target")) {+
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                m_currentField = TargetField;+
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            } else if (name() == QLatin1String("definition")) {+
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                m_currentField = DefinitionField;+
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            } else {+
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                m_currentField = NoField;+
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                if (name() == QLatin1String("QPH")) {+
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                    QXmlStreamAttributes atts = attributes();+
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                    translator.setLanguageCode(atts.value(QLatin1String("language")).toString());+
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                    translator.setSourceLanguageCode(atts.value(QLatin1String("sourcelanguage")).toString());+
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                }+
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            }+
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        } else if (isWhiteSpace()) {+
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            // ignore these+
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        } else if (isCharacters()) {+
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            if (m_currentField == SourceField)+
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                m_currentSource += text();+
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            else if (m_currentField == TargetField)+
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                m_currentTarget += text();+
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            else if (m_currentField == DefinitionField)+
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                m_currentDefinition += text();+
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        } else if (isEndElement() && name() == QLatin1String("phrase")) {+
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            m_currentTarget.replace(QChar(Translator::TextVariantSeparator),+
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                                    QChar(Translator::BinaryVariantSeparator));+
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            TranslatorMessage msg;+
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            msg.setSourceText(m_currentSource);+
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            msg.setTranslation(m_currentTarget);+
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            msg.setComment(m_currentDefinition);+
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            translator.append(msg);+
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            m_currentSource.clear();+
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            m_currentTarget.clear();+
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            m_currentDefinition.clear();+
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        }+
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    }+
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    return true;+
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}+
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+
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static bool loadQPH(Translator &translator, QIODevice &dev, ConversionData &)+
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{+
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    translator.setLocationsType(Translator::NoLocations);+
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    QPHReader reader(dev);+
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    return reader.read(translator);+
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}+
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+
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static QString protect(const QString &str)+
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{+
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    QString result;+
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    result.reserve(str.length() * 12 / 10);+
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    for (int i = 0; i != str.size(); ++i) {+
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        uint c = str.at(i).unicode();+
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        switch (c) {+
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        case '\"':+
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            result += QLatin1String("&quot;");+
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            break;+
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        case '&':+
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            result += QLatin1String("&amp;");+
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            break;+
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        case '>':+
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            result += QLatin1String("&gt;");+
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            break;+
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        case '<':+
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            result += QLatin1String("&lt;");+
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            break;+
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        case '\'':+
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            result += QLatin1String("&apos;");+
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            break;+
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        default:+
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            if (c < 0x20 && c != '\r' && c != '\n' && c != '\t')+
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                result += QString(QLatin1String("&#%1;")).arg(c);+
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            else // this also covers surrogates+
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                result += QChar(c);+
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        }+
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    }+
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    return result;+
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}+
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+
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static bool saveQPH(const Translator &translator, QIODevice &dev, ConversionData &)+
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{+
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    QTextStream t(&dev);+
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    t.setCodec(QTextCodec::codecForName("UTF-8"));+
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    t << "<!DOCTYPE QPH>\n<QPH";+
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    QString languageCode = translator.languageCode();+
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    if (!languageCode.isEmpty() && languageCode != QLatin1String("C"))+
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        t << " language=\"" << languageCode << "\"";+
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    languageCode = translator.sourceLanguageCode();+
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    if (!languageCode.isEmpty() && languageCode != QLatin1String("C"))+
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        t << " sourcelanguage=\"" << languageCode << "\"";+
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    t << ">\n";+
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    foreach (const TranslatorMessage &msg, translator.messages()) {+
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        t << "<phrase>\n";+
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        t << "    <source>" << protect(msg.sourceText()) << "</source>\n";+
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        QString str = msg.translations().join(QLatin1String("@"));+
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        str.replace(QChar(Translator::BinaryVariantSeparator),+
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                    QChar(Translator::TextVariantSeparator));+
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        t << "    <target>" << protect(str)+
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            << "</target>\n";+
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        if (!msg.comment().isEmpty())+
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            t << "    <definition>" << protect(msg.comment()) << "</definition>\n";+
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        t << "</phrase>\n";+
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    }+
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    t << "</QPH>\n";+
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    return true;+
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}+
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+
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int initQPH()+
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{+
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    Translator::FileFormat format;+
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+
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    format.extension = QLatin1String("qph");+
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    format.description = QObject::tr("Qt Linguist 'Phrase Book'");+
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    format.fileType = Translator::FileFormat::TranslationSource;+
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    format.priority = 0;+
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    format.loader = &loadQPH;+
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    format.saver = &saveQPH;+
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    Translator::registerFileFormat(format);+
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+
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    return 1;+
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}+
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+
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Q_CONSTRUCTOR_FUNCTION(initQPH)+
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+
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QT_END_NAMESPACE+
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