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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 tools applications 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*
jscodemarker.cpp
*/
#include "private/qdeclarativejsast_p.h"
#include "private/qdeclarativejsengine_p.h"
#include "private/qdeclarativejslexer_p.h"
#include "private/qdeclarativejsnodepool_p.h"
#include "private/qdeclarativejsparser_p.h"
#include "atom.h"
#include "node.h"
#include "jscodemarker.h"
#include "qmlmarkupvisitor.h"
#include "text.h"
#include "tree.h"
QT_BEGIN_NAMESPACE
JsCodeMarker::JsCodeMarker()
{
}
JsCodeMarker::~JsCodeMarker()
{
}
/*!
Returns true if the \a code is recognized by the parser.
*/
bool JsCodeMarker::recognizeCode(const QString &code)
{
QDeclarativeJS::Engine engine;
QDeclarativeJS::Lexer lexer(&engine);
QDeclarativeJS::Parser parser(&engine);
QDeclarativeJS::NodePool m_nodePool("<JsCodeMarker::recognizeCode>", &engine);
QString newCode = code;
QList<QDeclarativeJS::AST::SourceLocation> pragmas = extractPragmas(newCode);
lexer.setCode(newCode, 1);
return parser.parseProgram();
}
/*!
Returns true if \a ext is any of a list of file extensions
for the QML language.
*/
bool JsCodeMarker::recognizeExtension(const QString &ext)
{
return ext == "js";
}
/*!
Returns true if the \a language is recognized. Only "QML" is
recognized by this marker.
*/
bool JsCodeMarker::recognizeLanguage(const QString &language)
{
return language == "JavaScript" || language == "ECMAScript";
}
QString JsCodeMarker::markedUpCode(const QString &code,
const Node *relative,
const Location &location)
{
return addMarkUp(code, relative, location);
}
QString JsCodeMarker::addMarkUp(const QString &code,
const Node * /* relative */,
const Location &location)
{
QDeclarativeJS::Engine engine;
QDeclarativeJS::Lexer lexer(&engine);
QString newCode = code;
QList<QDeclarativeJS::AST::SourceLocation> pragmas = extractPragmas(newCode);
lexer.setCode(newCode, 1);
QDeclarativeJS::Parser parser(&engine);
QDeclarativeJS::NodePool m_nodePool("<JsCodeMarker::addMarkUp>", &engine);
QString output;
if (parser.parseProgram()) {
QDeclarativeJS::AST::Node *ast = parser.rootNode();
// Pass the unmodified code to the visitor so that pragmas and other
// unhandled source text can be output.
QmlMarkupVisitor visitor(code, pragmas, &engine);
QDeclarativeJS::AST::Node::accept(ast, &visitor);
output = visitor.markedUpCode();
} else {
location.warning(tr("Unable to parse JavaScript: \"%1\" at line %2, column %3").arg(
parser.errorMessage()).arg(parser.errorLineNumber()).arg(
parser.errorColumnNumber()));
output = protect(code);
}
return output;
}
QT_END_NAMESPACE
|
