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Diffstat (limited to 'tools/porting/src/proparser.cpp')
| -rw-r--r-- | tools/porting/src/proparser.cpp | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/tools/porting/src/proparser.cpp b/tools/porting/src/proparser.cpp new file mode 100644 index 0000000..e4ab4b5 --- /dev/null +++ b/tools/porting/src/proparser.cpp @@ -0,0 +1,193 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@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 |