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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module 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 "qdeclarativedirparser_p.h"
#include "qdeclarativeerror.h"
#include <QtCore/QTextStream>
#include <QtCore/QtDebug>
QT_BEGIN_NAMESPACE
QDeclarativeDirParser::QDeclarativeDirParser()
: _isParsed(false)
{
}
QDeclarativeDirParser::~QDeclarativeDirParser()
{
}
QUrl QDeclarativeDirParser::url() const
{
return _url;
}
void QDeclarativeDirParser::setUrl(const QUrl &url)
{
_url = url;
}
QString QDeclarativeDirParser::source() const
{
return _source;
}
void QDeclarativeDirParser::setSource(const QString &source)
{
_isParsed = false;
_source = source;
}
bool QDeclarativeDirParser::isParsed() const
{
return _isParsed;
}
bool QDeclarativeDirParser::parse()
{
if (_isParsed)
return true;
_isParsed = true;
_errors.clear();
_plugins.clear();
_components.clear();
QTextStream stream(&_source);
int lineNumber = 0;
forever {
++lineNumber;
const QString line = stream.readLine();
if (line.isNull())
break;
QString sections[3];
int sectionCount = 0;
int index = 0;
const int length = line.length();
while (index != length) {
const QChar ch = line.at(index);
if (ch.isSpace()) {
do { ++index; }
while (index != length && line.at(index).isSpace());
} else if (ch == QLatin1Char('#')) {
// recognized a comment
break;
} else {
const int start = index;
do { ++index; }
while (index != length && !line.at(index).isSpace());
const QString lexeme = line.mid(start, index - start);
if (sectionCount >= 3) {
reportError(lineNumber, start, QLatin1String("unexpected token"));
} else {
sections[sectionCount++] = lexeme;
}
}
}
if (sectionCount == 0) {
continue; // no sections, no party.
} else if (sections[0] == QLatin1String("plugin")) {
if (sectionCount < 2) {
reportError(lineNumber, -1,
QString::fromUtf8("plugin directive requires 2 arguments, but %1 were provided").arg(sectionCount + 1));
continue;
}
const Plugin entry(sections[1], sections[2]);
_plugins.append(entry);
} else if (sectionCount == 3) {
const QString &version = sections[1];
const int dotIndex = version.indexOf(QLatin1Char('.'));
if (dotIndex == -1) {
qWarning() << "expected '.'"; // ### use reportError
} else if (version.indexOf(QLatin1Char('.'), dotIndex + 1) != -1) {
qWarning() << "unexpected '.'"; // ### use reportError
} else {
bool validVersionNumber = false;
const int majorVersion = version.left(dotIndex).toInt(&validVersionNumber);
if (validVersionNumber) {
const int minorVersion = version.mid(dotIndex + 1).toInt(&validVersionNumber);
if (validVersionNumber) {
const Component entry(sections[0], sections[2], majorVersion, minorVersion);
_components.append(entry);
}
}
}
} else {
// ### use reportError
qWarning() << "a component declaration requires 3 arguments, but" << (sectionCount + 1) << "were provided";
}
}
return hasError();
}
void QDeclarativeDirParser::reportError(int line, int column, const QString &description)
{
QDeclarativeError error;
error.setUrl(_url);
error.setLine(line);
error.setColumn(column);
error.setDescription(description);
_errors.append(error);
}
bool QDeclarativeDirParser::hasError() const
{
if (! _errors.isEmpty())
return true;
return false;
}
QList<QDeclarativeError> QDeclarativeDirParser::errors() const
{
return _errors;
}
QList<QDeclarativeDirParser::Plugin> QDeclarativeDirParser::plugins() const
{
return _plugins;
}
QList<QDeclarativeDirParser::Component> QDeclarativeDirParser::components() const
{
return _components;
}
QT_END_NAMESPACE
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