/****************************************************************************+
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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 "lupdate.h"+
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+
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#include <translator.h>+
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+
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#include <QtCore/QDebug>+
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#include <QtCore/QFile>+
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#include <QtCore/QString>+
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+
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#include <QtXml/QXmlAttributes>+
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#include <QtXml/QXmlDefaultHandler>+
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#include <QtXml/QXmlLocator>+
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#include <QtXml/QXmlParseException>+
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+
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+
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QT_BEGIN_NAMESPACE+
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+
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class UiReader : public QXmlDefaultHandler+
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{+
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public:+
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    UiReader(Translator &translator, ConversionData &cd)+
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      : m_translator(translator), m_cd(cd), m_lineNumber(-1), m_isTrString(false),+
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        m_needUtf8(translator.codecName() != "UTF-8")+
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    {}+
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+
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    bool startElement(const QString &namespaceURI, const QString &localName,+
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        const QString &qName, const QXmlAttributes &atts);+
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    bool endElement(const QString &namespaceURI, const QString &localName,+
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        const QString &qName);+
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    bool characters(const QString &ch);+
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    bool fatalError(const QXmlParseException &exception);+
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+
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    void setDocumentLocator(QXmlLocator *locator) { m_locator = locator; }+
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+
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private:+
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    void flush();+
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+
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    Translator &m_translator;+
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    ConversionData &m_cd;+
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    QString m_context;+
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    QString m_source;+
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    QString m_comment;+
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    QString m_extracomment;+
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    QXmlLocator *m_locator;+
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+
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    QString m_accum;+
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    int m_lineNumber;+
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    bool m_isTrString;+
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    bool m_needUtf8;+
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};+
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+
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bool UiReader::startElement(const QString &namespaceURI,+
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    const QString &localName, const QString &qName, const QXmlAttributes &atts)+
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{+
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    Q_UNUSED(namespaceURI);+
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    Q_UNUSED(localName);+
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+
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    if (qName == QLatin1String("item")) { // UI3 menu entries+
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        flush();+
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        if (!atts.value(QLatin1String("text")).isEmpty()) {+
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            m_source = atts.value(QLatin1String("text"));+
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            m_isTrString = true;+
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            if (!m_cd.m_noUiLines)+
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                m_lineNumber = m_locator->lineNumber();+
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        }+
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    } else if (qName == QLatin1String("string")) {+
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        flush();+
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        if (atts.value(QLatin1String("notr")).isEmpty() ||+
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            atts.value(QLatin1String("notr")) != QLatin1String("true")) {+
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            m_isTrString = true;+
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            m_comment = atts.value(QLatin1String("comment"));+
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            m_extracomment = atts.value(QLatin1String("extracomment"));+
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            if (!m_cd.m_noUiLines)+
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                m_lineNumber = m_locator->lineNumber();+
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        } else {+
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            m_isTrString = false;+
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        }+
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    }+
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    m_accum.clear();+
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    return true;+
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}+
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+
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bool UiReader::endElement(const QString &namespaceURI,+
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    const QString &localName, const QString &qName)+
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{+
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    Q_UNUSED(namespaceURI);+
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    Q_UNUSED(localName);+
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+
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    m_accum.replace(QLatin1String("\r\n"), QLatin1String("\n"));+
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+
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    if (qName == QLatin1String("class")) { // UI "header"+
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        if (m_context.isEmpty())+
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            m_context = m_accum;+
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    } else if (qName == QLatin1String("string") && m_isTrString) {+
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        m_source = m_accum;+
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    } else if (qName == QLatin1String("comment")) { // FIXME: what's that?+
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        m_comment = m_accum;+
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        flush();+
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    } else if (qName == QLatin1String("function")) { // UI3 embedded code+
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        fetchtrInlinedCpp(m_accum, m_translator, m_context);+
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    } else {+
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        flush();+
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    }+
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    return true;+
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}+
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+
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bool UiReader::characters(const QString &ch)+
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{+
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    m_accum += ch;+
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    return true;+
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}+
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+
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bool UiReader::fatalError(const QXmlParseException &exception)+
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{+
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    QString msg;+
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    msg.sprintf("XML error: Parse error at line %d, column %d (%s).",+
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                 exception.lineNumber(), exception.columnNumber(),+
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                 exception.message().toLatin1().data());+
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    m_cd.appendError(msg); +
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    return false;+
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}+
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+
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void UiReader::flush()+
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{+
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    if (!m_context.isEmpty() && !m_source.isEmpty()) {+
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        TranslatorMessage msg(m_context, m_source,+
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           m_comment, QString(), m_cd.m_sourceFileName,+
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           m_lineNumber, QStringList());+
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        msg.setExtraComment(m_extracomment);+
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        if (m_needUtf8 && msg.needs8Bit())+
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            msg.setUtf8(true);+
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        m_translator.extend(msg);+
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    }+
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    m_source.clear();+
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    m_comment.clear();+
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    m_extracomment.clear();+
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}+
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+
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bool loadUI(Translator &translator, const QString &filename, ConversionData &cd)+
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{+
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    cd.m_sourceFileName = filename;+
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    QFile file(filename);+
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    if (!file.open(QIODevice::ReadOnly)) {+
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        cd.appendError(QString::fromLatin1("Cannot open %1: %2")+
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            .arg(filename, file.errorString()));+
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        return false;+
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    }+
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    QXmlInputSource in(&file);+
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    QXmlSimpleReader reader;+
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    reader.setFeature(QLatin1String("http://xml.org/sax/features/namespaces"), false);+
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    reader.setFeature(QLatin1String("http://xml.org/sax/features/namespace-prefixes"), true);+
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    reader.setFeature(QLatin1String(+
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            "http://trolltech.com/xml/features/report-whitespace-only-CharData"), false);+
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    UiReader handler(translator, cd);+
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    reader.setContentHandler(&handler);+
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    reader.setErrorHandler(&handler);+
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    bool result = reader.parse(in);+
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    if (!result)+
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        cd.appendError(QLatin1String("Parse error in UI file"));+
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    reader.setContentHandler(0);+
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    reader.setErrorHandler(0);+
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    return result;+
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}+
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+
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QT_END_NAMESPACE+
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