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diff --git a/src/tools/qdoc/jscodemarker.cpp b/src/tools/qdoc/jscodemarker.cpp
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+++ b/src/tools/qdoc/jscodemarker.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+  jscodemarker.cpp
+*/
+
+#include "qqmljsast_p.h"
+#include "qqmljsengine_p.h"
+#include "qqmljslexer_p.h"
+#include "qqmljsparser_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)
+{
+    QQmlJS::Engine engine;
+    QQmlJS::Lexer lexer(&engine);
+    QQmlJS::Parser parser(&engine);
+
+    QString newCode = code;
+    QList<QQmlJS::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" || ext == "json";
+}
+
+/*!
+  Returns true if the \a language is recognized. We recognize JavaScript,
+  ECMAScript and JSON.
+ */
+bool JsCodeMarker::recognizeLanguage(const QString &language)
+{
+    return language == "JavaScript" || language == "ECMAScript" || language == "JSON";
+}
+
+/*!
+  Returns the type of atom used to represent JavaScript code in the documentation.
+*/
+Atom::Type JsCodeMarker::atomType() const
+{
+    return Atom::JavaScript;
+}
+
+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)
+{
+    QQmlJS::Engine engine;
+    QQmlJS::Lexer lexer(&engine);
+
+    QString newCode = code;
+    QList<QQmlJS::AST::SourceLocation> pragmas = extractPragmas(newCode);
+    lexer.setCode(newCode, 1);
+
+    QQmlJS::Parser parser(&engine);
+    QString output;
+
+    if (parser.parseProgram()) {
+        QQmlJS::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);
+        QQmlJS::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