/****************************************************************************+
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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 qmake application 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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#ifndef XMLOUTPUT_H+
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#define XMLOUTPUT_H+
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+
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#include <qtextstream.h>+
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#include <qstack.h>+
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+
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QT_BEGIN_NAMESPACE+
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+
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class XmlOutput+
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{+
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public:+
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    enum ConverstionType {+
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        NoConversion,       // No change+
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        EscapeConversion,   // Use '\"'+
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        XMLConversion       // Use &quot;+
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    };+
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    enum XMLFormat {+
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        NoNewLine,          // No new lines, unless added manually+
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        NewLine             // All properties & tags indented on new lines+
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    };+
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    enum XMLState {+
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        Bare,               // Not in tag or attribute+
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        Tag,                // <tagname attribute1="value"+
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        Attribute           //  attribute2="value">+
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    };+
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    enum XMLType {+
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        tNothing,           // No XML output, and not state change+
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        tRaw,               // Raw text (no formating)+
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        tDeclaration,       // <?xml version="x.x" encoding="xxx"?>+
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        tTag,               // <tagname attribute1="value"+
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        tCloseTag,          // Closes an open tag+
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        tAttribute,         //  attribute2="value">+
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        tData,              // Tag data (formating done)+
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        tComment,           // <!-- Comment -->+
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        tCDATA              // <![CDATA[ ... ]]>+
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    };+
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+
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    XmlOutput(QTextStream &file, ConverstionType type = XMLConversion);+
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    ~XmlOutput();+
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+
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    // Settings+
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    void setIndentString(const QString &indentString);+
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    QString indentString();+
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    void setIndentLevel(int level);+
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    int indentLevel();+
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    void setState(XMLState state);+
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    XMLState state();+
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+
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+
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    struct xml_output {+
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        XMLType xo_type;    // Type of struct instance+
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        QString xo_text;    // Tag/Attribute name/xml version+
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        QString xo_value;   // Value of attributes/xml encoding+
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+
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        xml_output(XMLType type, const QString &text, const QString &value)+
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            : xo_type(type), xo_text(text), xo_value(value) {}+
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        xml_output(const xml_output &xo)+
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            : xo_type(xo.xo_type), xo_text(xo.xo_text), xo_value(xo.xo_value) {}+
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    };+
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+
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    // Streams+
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    XmlOutput& operator<<(const QString& o);+
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    XmlOutput& operator<<(const xml_output& o);+
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+
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private:+
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    void increaseIndent();+
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    void decreaseIndent();+
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    void updateIndent();+
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+
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    QString doConversion(const QString &text);+
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+
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    // Output functions+
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    void newTag(const QString &tag);+
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    void newTagOpen(const QString &tag);+
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    void closeOpen();+
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    void closeTag();+
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    void closeTo(const QString &tag);+
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    void closeAll();+
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+
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    void addDeclaration(const QString &version, const QString &encoding);+
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    void addRaw(const QString &rawText);+
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    void addAttribute(const QString &attribute, const QString &value);+
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    void addData(const QString &data);+
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+
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    // Data+
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    QTextStream &xmlFile;+
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    QString indent;+
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+
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    QString currentIndent;+
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    int currentLevel;+
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    XMLState currentState;+
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+
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    XMLFormat format;+
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    ConverstionType conversion;+
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    QStack<QString> tagStack;+
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};+
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+
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inline XmlOutput::xml_output noxml()+
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{+
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    return XmlOutput::xml_output(XmlOutput::tNothing, QString(), QString());+
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}+
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+
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inline XmlOutput::xml_output raw(const QString &rawText)+
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{+
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    return XmlOutput::xml_output(XmlOutput::tRaw, rawText, QString());+
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}+
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+
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inline XmlOutput::xml_output declaration(const QString &version = QString("1.0"),+
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                                         const QString &encoding = QString())+
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{+
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    return XmlOutput::xml_output(XmlOutput::tDeclaration, version, encoding);+
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}+
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+
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inline XmlOutput::xml_output decl(const QString &version = QString("1.0"),+
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                                  const QString &encoding = QString())+
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{+
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    return declaration(version, encoding);+
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}+
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+
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inline XmlOutput::xml_output tag(const QString &name)+
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{+
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    return XmlOutput::xml_output(XmlOutput::tTag, name, QString());+
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}+
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+
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inline XmlOutput::xml_output closetag()+
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{+
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    return XmlOutput::xml_output(XmlOutput::tCloseTag, QString(), QString());+
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}+
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+
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inline XmlOutput::xml_output closetag(const QString &toTag)+
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{+
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    return XmlOutput::xml_output(XmlOutput::tCloseTag, toTag, QString());+
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}+
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+
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inline XmlOutput::xml_output closeall()+
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{+
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    return XmlOutput::xml_output(XmlOutput::tCloseTag, QString(), QString("all"));+
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}+
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+
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inline XmlOutput::xml_output attribute(const QString &name,+
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                                       const QString &value)+
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{+
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    return XmlOutput::xml_output(XmlOutput::tAttribute, name, value);+
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}+
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+
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inline XmlOutput::xml_output attr(const QString &name,+
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                                  const QString &value)+
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{+
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    return attribute(name, value);+
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}+
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+
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inline XmlOutput::xml_output data(const QString &text = QString())+
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{+
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    return XmlOutput::xml_output(XmlOutput::tData, text, QString());+
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}+
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+
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inline XmlOutput::xml_output comment(const QString &text)+
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{+
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    return XmlOutput::xml_output(XmlOutput::tComment, text, QString());+
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}+
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+
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inline XmlOutput::xml_output cdata(const QString &text)+
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{+
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    return XmlOutput::xml_output(XmlOutput::tCDATA, text, QString());+
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}+
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+
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QT_END_NAMESPACE+
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+
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#endif // XMLOUTPUT_H+
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