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/****************************************************************************
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**
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** Copyright (C) 2008-2009 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 Script Generator project on Qt Labs.
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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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#ifndef MAIN_H
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#define MAIN_H
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#include "pp.h"
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#include <QFile>
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#include <QDir>
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struct Preprocess
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{
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static bool preprocess(const QString &sourceFile, const QString &targetFile, const QString &commandLineIncludes = QString())
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{
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rpp::pp_environment env;
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rpp::pp preprocess(env);
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rpp::pp_null_output_iterator null_out;
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const char *ppconfig = ":/trolltech/generator/parser/rpp/pp-qt-configuration";
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QFile file(ppconfig);
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if (!file.open(QFile::ReadOnly)) {
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fprintf(stderr, "Preprocessor configuration file not found '%s'\n", ppconfig);
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return false;
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}
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QByteArray ba = file.readAll();
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file.close();
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preprocess.operator() (ba.constData(), ba.constData() + ba.size(), null_out);
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QStringList includes;
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includes << QString(".");
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#if defined(Q_OS_WIN32)
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char *path_splitter = ";";
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#else
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const char *path_splitter = ":";
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#endif
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// Environment INCLUDE
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QString includePath = getenv("INCLUDE");
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if (!includePath.isEmpty())
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includes += includePath.split(path_splitter);
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// Includes from the command line
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if (!commandLineIncludes.isEmpty())
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includes += commandLineIncludes.split(path_splitter);
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// Include Qt
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QString qtdir = getenv ("QTDIR");
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if (qtdir.isEmpty()) {
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#if defined(Q_OS_MAC)
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qWarning("QTDIR environment variable not set. Assuming standard binary install using frameworks.");
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QString frameworkDir = "/Library/Frameworks";
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includes << (frameworkDir + "/QtXml.framework/Headers");
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includes << (frameworkDir + "/QtNetwork.framework/Headers");
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includes << (frameworkDir + "/QtCore.framework/Headers");
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includes << (frameworkDir + "/QtGui.framework/Headers");
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includes << (frameworkDir + "/QtOpenGL.framework/Headers");
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includes << frameworkDir;
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#else
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qWarning("QTDIR environment variable not set. This may cause problems with finding the necessary include files.");
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#endif
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} else {
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std::cout << "-------------------------------------------------------------" << std::endl;
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std::cout << "Using QT at: " << qtdir.toLocal8Bit().constData() << std::endl;
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std::cout << "-------------------------------------------------------------" << std::endl;
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qtdir += "/include";
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includes << (qtdir + "/QtXml");
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includes << (qtdir + "/QtNetwork");
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includes << (qtdir + "/QtCore");
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includes << (qtdir + "/QtGui");
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includes << (qtdir + "/QtOpenGL");
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includes << qtdir;
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}
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foreach (QString include, includes) {
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preprocess.push_include_path(QDir::toNativeSeparators(include).toStdString());
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}
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QString currentDir = QDir::current().absolutePath();
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QFileInfo sourceInfo(sourceFile);
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QDir::setCurrent(sourceInfo.absolutePath());
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std::string result;
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result.reserve (20 * 1024); // 20K
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result += "# 1 \"builtins\"\n";
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result += "# 1 \"";
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result += sourceFile.toStdString();
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result += "\"\n";
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preprocess.file (sourceInfo.fileName().toStdString(),
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rpp::pp_output_iterator<std::string> (result));
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QDir::setCurrent(currentDir);
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QFile f(targetFile);
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if (!f.open(QIODevice::WriteOnly | QIODevice::Text)) {
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fprintf(stderr, "Failed to write preprocessed file: %s\n", qPrintable(targetFile));
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}
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f.write(result.c_str(), result.length());
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return true;
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}
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};
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#endif // MAIN_H
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