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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/

#include "codegeneration.h"

#include <QtCore/QTextStream>
#include <QtCore/QStringList>
#include <QtCore/QFileInfo>

namespace Utils {

QTCREATOR_UTILS_EXPORT QString fileNameToCppIdentifier(const QString &s)
{
    QString rc;
    const int len = s.size();
    const QChar underscore =  QLatin1Char('_');
    const QChar dot =  QLatin1Char('.');

    for (int i = 0; i < len; i++) {
        const QChar c = s.at(i);
        if (c == underscore || c.isLetterOrNumber())
            rc += c;
        else if (c == dot)
            rc += underscore;
    }
    return rc;
}

QTCREATOR_UTILS_EXPORT QString headerGuard(const QString &file)
{
    const QFileInfo fi(file);
    QString rc = fileNameToCppIdentifier(fi.completeBaseName()).toUpper();
    rc += QLatin1Char('_');
    rc += fileNameToCppIdentifier(fi.suffix()).toUpper();
    return rc;
}

QTCREATOR_UTILS_EXPORT
void writeIncludeFileDirective(const QString &file, bool globalInclude,
                               QTextStream &str)
{
    const QChar opening = globalInclude ?  QLatin1Char('<') : QLatin1Char('"');
    const QChar closing = globalInclude ?  QLatin1Char('>') : QLatin1Char('"');
    str << QLatin1String("#include ") << opening << file <<  closing << QLatin1Char('\n');
}

QTCREATOR_UTILS_EXPORT
QString writeOpeningNameSpaces(const QStringList &l, const QString &indent,
                               QTextStream &str)
{
    const int count = l.size();
    QString rc;
    if (count) {
        str << '\n';
        for (int i = 0; i < count; i++) {
            str << rc << "namespace " << l.at(i) << " {\n";
            rc += indent;
        }
    }
    return rc;
}

QTCREATOR_UTILS_EXPORT
void writeClosingNameSpaces(const QStringList &l, const QString &indent,
                            QTextStream &str)
{
    if (!l.empty())
        str << '\n';
    for (int i = l.size() - 1; i >= 0; i--) {
        if (i)
            str << QString(indent.size() * i, QLatin1Char(' '));
        str << "} // namespace " <<  l.at(i) << '\n';
    }
}

} // namespace Utils