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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** 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
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