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Diffstat (limited to 'src/declarative/qml/qdeclarativedirparser.cpp')
| -rw-r--r-- | src/declarative/qml/qdeclarativedirparser.cpp | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/src/declarative/qml/qdeclarativedirparser.cpp b/src/declarative/qml/qdeclarativedirparser.cpp new file mode 100644 index 0000000..e730b92 --- /dev/null +++ b/src/declarative/qml/qdeclarativedirparser.cpp @@ -0,0 +1,220 @@ +/**************************************************************************** +** +** 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 |