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6 ** This file is part of the examples of the Qt Toolkit.
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42 #include <QtCore/qfile.h>
43 #include <QtCore/qtextstream.h>
44 #include <QtCore/qstringlist.h>
45 #include <QtCore/qscopedpointer.h>
47 #include <QtGui/QGuiApplication>
49 #include <QtDeclarative/qjsengine.h>
54 class CommandInterface : public QObject
58 Q_INVOKABLE void quit() { m_wantsToQuit = true; }
59 static bool wantsToQuit() { return m_wantsToQuit; }
61 static bool m_wantsToQuit;
64 bool CommandInterface::m_wantsToQuit = false;
67 static void interactive(QJSEngine *eng)
69 QTextStream qin(stdin, QFile::ReadOnly);
70 const char *prompt = "qs> ";
78 line = qin.readLine();
82 if (line.trimmed().isEmpty())
85 line += QLatin1Char('\n');
87 QJSValue result = eng->evaluate(line, QLatin1String("typein"));
89 fprintf(stderr, "%s\n", qPrintable(result.toString()));
91 if (CommandInterface::wantsToQuit())
96 int main(int argc, char *argv[])
98 QGuiApplication app(argc, argv);
99 QScopedPointer<QJSEngine> eng(new QJSEngine());
101 QJSValue globalObject = eng->globalObject();
102 QJSValue interface = eng->newQObject(new CommandInterface);
103 globalObject.setProperty("qt", interface);
107 interactive(eng.data());
111 while (const char *arg = *argv++) {
112 QString fileName = QString::fromLocal8Bit(arg);
114 if (fileName == QLatin1String("-i")) {
115 interactive(eng.data());
122 if (fileName == QLatin1String("-")) {
123 QTextStream stream(stdin, QFile::ReadOnly);
124 contents = stream.readAll();
126 QFile file(fileName);
127 if (file.open(QFile::ReadOnly)) {
128 QTextStream stream(&file);
129 contents = stream.readAll();
132 // strip off #!/usr/bin/env qjs line
133 if (contents.startsWith("#!")) {
134 contents.remove(0, contents.indexOf("\n"));
140 if (contents.isEmpty())
143 QJSValue result = eng->evaluate(contents, fileName, lineNumber);
144 if (eng->hasUncaughtException()) {
145 fprintf (stderr, " %s\n\n", qPrintable(result.toString()));