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1 /****************************************************************************
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2 **
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3 ** Copyright (C) 1992-2008 Nokia. All rights reserved.
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4 **
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5 ** This file is part of Qt Jambi.
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6 **
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7 ** * Commercial Usage
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8 * Licensees holding valid Qt Commercial licenses may use this file in
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9 * accordance with the Qt Commercial License Agreement provided with the
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10 * Software or, alternatively, in accordance with the terms contained in
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11 * a written agreement between you and Nokia.
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12 *
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13 *
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14 * GNU General Public License Usage
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15 * Alternatively, this file may be used under the terms of the GNU
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16 * General Public License versions 2.0 or 3.0 as published by the Free
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17 * Software Foundation and appearing in the file LICENSE.GPL included in
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18 * the packaging of this file. Please review the following information
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19 * to ensure GNU General Public Licensing requirements will be met:
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20 * http://www.fsf.org/licensing/licenses/info/GPLv2.html and
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21 * http://www.gnu.org/copyleft/gpl.html. In addition, as a special
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22 * exception, Nokia gives you certain additional rights. These rights
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23 * are described in the Nokia Qt GPL Exception version 1.2, included in
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24 * the file GPL_EXCEPTION.txt in this package.
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25 *
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26 * Qt for Windows(R) Licensees
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27 * As a special exception, Nokia, as the sole copyright holder for Qt
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28 * Designer, grants users of the Qt/Eclipse Integration plug-in the
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29 * right for the Qt/Eclipse Integration to link to functionality
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30 * provided by Qt Designer and its related libraries.
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31 *
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32 *
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33 * If you are unsure which license is appropriate for your use, please
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34 * contact the sales department at qt-sales@nokia.com.
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35
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36 **
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37 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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38 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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39 **
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40 ****************************************************************************/
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41
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42 #ifndef MAIN_H
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43 #define MAIN_H
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44
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45 #include "pp.h"
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46
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47 #include <QFile>
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48 #include <QDir>
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49
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50 struct Preprocess
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51 {
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52 static bool preprocess(const QString &sourceFile, const QString &targetFile, const QString &commandLineIncludes = QString())
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53 {
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54 rpp::pp_environment env;
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55 rpp::pp preprocess(env);
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56
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57 rpp::pp_null_output_iterator null_out;
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58
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59 const char *ppconfig = ":/trolltech/generator/parser/rpp/pp-qt-configuration";
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60
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61 QFile file(ppconfig);
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62 if (!file.open(QFile::ReadOnly)) {
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63 fprintf(stderr, "Preprocessor configuration file not found '%s'\n", ppconfig);
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64 return false;
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65 }
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66
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67 QByteArray ba = file.readAll();
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68 file.close();
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69 preprocess.operator() (ba.constData(), ba.constData() + ba.size(), null_out);
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70
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71 QStringList includes;
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72 includes << QString(".");
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73
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74 #if defined(Q_OS_WIN32)
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75 const char *path_splitter = ";";
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76 #else
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77 const char *path_splitter = ":";
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78 #endif
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79 // Environment INCLUDE
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80 QString includePath = getenv("INCLUDE");
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81 if (!includePath.isEmpty())
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82 includes += includePath.split(path_splitter);
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83
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84 // Includes from the command line
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85 if (!commandLineIncludes.isEmpty())
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86 includes += commandLineIncludes.split(path_splitter);
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87
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88 // Include Qt
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89 QString qtdir_inc = getenv ("QTDIR_INC");
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90 QString qtdir = getenv ("QTDIR");
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91 if (qtdir.isEmpty() && qtdir_inc.isEmpty()) {
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92 qWarning("QTDIR and(or) QTDIR_INC environment variables not set. This may cause problems with finding the necessary include files.");
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93 } else {
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94 if (qtdir_inc.isEmpty())
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95 qtdir_inc = qtdir + "/include";
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96 includes << (qtdir_inc + "/QtXml");
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97 includes << (qtdir_inc + "/QtNetwork");
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98 includes << (qtdir_inc + "/QtCore");
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99 includes << (qtdir_inc + "/QtGui");
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100 includes << (qtdir_inc + "/QtOpenGL");
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101 includes << qtdir_inc;
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102 }
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103
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104
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105 foreach (QString include, includes)
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106 preprocess.push_include_path(QDir::convertSeparators(include).toStdString());
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107
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108 QString currentDir = QDir::current().absolutePath();
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109 QFileInfo sourceInfo(sourceFile);
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110 QDir::setCurrent(sourceInfo.absolutePath());
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111
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112 std::string result;
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113 result.reserve (20 * 1024); // 20K
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114
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115 result += "# 1 \"builtins\"\n";
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116 result += "# 1 \"";
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117 result += sourceFile.toStdString();
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118 result += "\"\n";
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119
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120 preprocess.file (sourceInfo.fileName().toStdString(),
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121 rpp::pp_output_iterator<std::string> (result));
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122
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123 QDir::setCurrent(currentDir);
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124
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125 QFile f(targetFile);
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126 if (!f.open(QIODevice::WriteOnly | QIODevice::Text)) {
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127 fprintf(stderr, "Failed to write preprocessed file: %s\n", qPrintable(targetFile));
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128 }
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129 f.write(result.c_str(), result.length());
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130
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131 return true;
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132 }
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133 };
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134
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135 #endif // MAIN_H
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