Long live Qt 4.5!

1 files changed, 193 insertions, 0 deletions

diff --git a/tools/porting/src/proparser.cpp b/tools/porting/src/proparser.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the qt3to4 porting application of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "proparser.h"
+
+#include <QDir>
+#include <QFile>
+#include <QFileInfo>
+#include <QRegExp>
+#include <QStringList>
+#include <QTextStream>
+
+#ifdef Q_OS_UNIX
+#include <unistd.h>
+#endif
+
+#ifdef Q_OS_WIN32
+#define QT_POPEN _popen
+#else
+#define QT_POPEN popen
+#endif
+
+QT_BEGIN_NAMESPACE
+
+QString loadFile( const QString &fileName )
+{
+    QFile file( fileName );
+    if ( !file.open(QIODevice::ReadOnly) ) {
+        fprintf( stderr, "error: Cannot load '%s': %s\n",
+                 file.fileName().toLocal8Bit().constData(),
+                 file.errorString().toLatin1().constData() );
+        return QString();
+    }
+
+    QTextStream in( &file );
+    return in.readAll();
+}
+
+QMap<QString, QString> proFileTagMap( const QString& text, QString currentPath )
+{
+    QString t = text;
+    if (currentPath.isEmpty())
+        currentPath = QDir::currentPath();
+
+
+    QMap<QString, QString> tagMap;
+        /*
+            Strip any commments before we try to include.  We
+            still need to do it after we include to make sure the
+            included file does not have comments
+        */
+        t.replace( QRegExp(QLatin1String("#[^\n]*\n")), QLatin1String(" ") );
+      /*
+            Strip comments, merge lines ending with backslash, add
+            spaces around '=' and '+=', replace '\n' with ';', and
+            simplify white spaces.
+        */
+        t.replace( QRegExp(QLatin1String("#[^\n]*\n")), QLatin1String(" ") );
+        t.replace( QRegExp(QLatin1String("\\\\[^\n\\S]*\n")), QLatin1String(" ") );
+        t.replace( QLatin1String("="), QLatin1String(" = ") );
+        t.replace( QLatin1String("+ ="), QLatin1String(" += ") );
+        t.replace( QLatin1String("\n"), QLatin1String(";") );
+        t = t.simplified();
+
+        /*
+            Populate tagMap with 'key = value' entries.
+        */
+        QStringList lines = t.split(QLatin1Char(';'));
+        QStringList::Iterator line;
+        for ( line = lines.begin(); line != lines.end(); ++line ) {
+            QStringList toks = (*line).split(QLatin1Char(' '), QString::SkipEmptyParts);
+
+            if ( toks.count() >= 3 &&
+                (toks[1] == QLatin1String("=") || toks[1] == QLatin1String("+=") ||
+                toks[1] == QLatin1String("*=")) ) {
+                QString tag = toks.first();
+                int k = tag.lastIndexOf( QLatin1Char(':') ); // as in 'unix:'
+                if ( k != -1 )
+                    tag = tag.mid( k + 1 );
+                toks.erase( toks.begin() );
+
+                QString action = toks.first();
+                toks.erase( toks.begin() );
+
+                if ( tagMap.contains(tag) ) {
+                    if ( action == QLatin1String("=") )
+                        tagMap.insert( tag, toks.join(QLatin1String(" ")) );
+                    else
+                        tagMap[tag] += QLatin1Char( ' ' ) + toks.join( QLatin1String(" ") );
+                } else {
+                    tagMap[tag] = toks.join( QLatin1String(" ") );
+                }
+            }
+        }
+        /*
+            Expand $$variables within the 'value' part of a 'key = value'
+            pair.
+        */
+        QRegExp var( QLatin1String("\\$\\$[({]?([a-zA-Z0-9_]+)[)}]?") );
+        QMap<QString, QString>::Iterator it;
+        for ( it = tagMap.begin(); it != tagMap.end(); ++it ) {
+            int i = 0;
+            while ( (i = var.indexIn((*it), i)) != -1 ) {
+                int len = var.matchedLength();
+                QString invocation = var.cap(1);
+                QString after;
+
+                if ( invocation == QLatin1String("system") ) {
+                    // skip system(); it will be handled in the next pass
+                    ++i;
+                } else {
+                    if ( tagMap.contains(invocation) )
+                        after = tagMap[invocation];
+                    else if (invocation.toLower() == QLatin1String("pwd"))
+                        after = currentPath;
+                    (*it).replace( i, len, after );
+                    i += after.length();
+                }
+            }
+        }
+
+        /*
+          Execute system() calls.
+        */
+        QRegExp callToSystem( QLatin1String("\\$\\$system\\s*\\(([^()]*)\\)") );
+        for ( it = tagMap.begin(); it != tagMap.end(); ++it ) {
+            int i = 0;
+            while ( (i = callToSystem.indexIn((*it), i)) != -1 ) {
+                /*
+                  This code is stolen from qmake's project.cpp file.
+                  Ideally we would use the same parser, so we wouldn't
+                  have this code duplication.
+                */
+                QString after;
+                char buff[256];
+                FILE *proc = QT_POPEN( callToSystem.cap(1).toLatin1().constData(), "r" );
+                while ( proc && !feof(proc) ) {
+                    int read_in = int(fread( buff, 1, 255, proc ));
+                    if ( !read_in )
+                        break;
+                    for ( int i = 0; i < read_in; i++ ) {
+                        if ( buff[i] == '\n' || buff[i] == '\t' )
+                            buff[i] = ' ';
+                    }
+                    buff[read_in] = '\0';
+                    after += QLatin1String(buff);
+                }
+                (*it).replace( i, callToSystem.matchedLength(), after );
+                i += after.length();
+            }
+        }
+    return tagMap;
+}
+
+QT_END_NAMESPACE