153 lines
4.6 KiB
C++
153 lines
4.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtCore/qfile.h>
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#include <QtCore/qtextstream.h>
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#include <QtCore/qstringlist.h>
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#include <QtCore/qscopedpointer.h>
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#include <QtGui/qapplication.h>
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#include <QtDeclarative/qjsengine.h>
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#include <stdlib.h>
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class CommandInterface : public QObject
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{
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Q_OBJECT
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public:
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Q_INVOKABLE void quit() { m_wantsToQuit = true; }
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static bool wantsToQuit() { return m_wantsToQuit; }
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private:
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static bool m_wantsToQuit;
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};
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bool CommandInterface::m_wantsToQuit = false;
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static void interactive(QJSEngine *eng)
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{
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QTextStream qin(stdin, QFile::ReadOnly);
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const char *prompt = "qs> ";
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forever {
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QString line;
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printf("%s", prompt);
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fflush(stdout);
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line = qin.readLine();
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if (line.isNull())
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break;
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if (line.trimmed().isEmpty())
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continue;
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line += QLatin1Char('\n');
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QJSValue result = eng->evaluate(line, QLatin1String("typein"));
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fprintf(stderr, "%s\n", qPrintable(result.toString()));
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if (CommandInterface::wantsToQuit())
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break;
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}
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}
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int main(int argc, char *argv[])
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{
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QApplication app(argc, argv);
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QScopedPointer<QJSEngine> eng(new QJSEngine());
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{
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QJSValue globalObject = eng->globalObject();
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QJSValue interface = eng->newQObject(new CommandInterface);
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globalObject.setProperty("qt", interface);
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}
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if (! *++argv) {
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interactive(eng.data());
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return EXIT_SUCCESS;
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}
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while (const char *arg = *argv++) {
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QString fileName = QString::fromLocal8Bit(arg);
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if (fileName == QLatin1String("-i")) {
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interactive(eng.data());
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break;
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}
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QString contents;
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int lineNumber = 1;
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if (fileName == QLatin1String("-")) {
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QTextStream stream(stdin, QFile::ReadOnly);
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contents = stream.readAll();
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} else {
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QFile file(fileName);
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if (file.open(QFile::ReadOnly)) {
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QTextStream stream(&file);
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contents = stream.readAll();
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file.close();
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// strip off #!/usr/bin/env qjs line
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if (contents.startsWith("#!")) {
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contents.remove(0, contents.indexOf("\n"));
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++lineNumber;
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}
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}
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}
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if (contents.isEmpty())
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continue;
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QJSValue result = eng->evaluate(contents, fileName, lineNumber);
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if (eng->hasUncaughtException()) {
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fprintf (stderr, " %s\n\n", qPrintable(result.toString()));
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return EXIT_FAILURE;
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}
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}
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return EXIT_SUCCESS;
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}
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#include <main.moc> |