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50 | |
51 | |
52 | #include <QtCore/qfile.h> |
53 | #include <QtCore/qtextstream.h> |
54 | #include <QtCore/qstringlist.h> |
55 | #include <QtCore/qscopedpointer.h> |
56 | |
57 | #include <QtCore/QCoreApplication> |
58 | |
59 | #include <QtQml/qjsengine.h> |
60 | |
61 | #include <stdlib.h> |
62 | |
63 | |
64 | class CommandInterface : public QObject |
65 | { |
66 | Q_OBJECT |
67 | public: |
68 | Q_INVOKABLE void quit() { m_wantsToQuit = true; } |
69 | static bool wantsToQuit() { return m_wantsToQuit; } |
70 | private: |
71 | static bool m_wantsToQuit; |
72 | }; |
73 | |
74 | bool CommandInterface::m_wantsToQuit = false; |
75 | |
76 | |
77 | static void interactive(QJSEngine *eng) |
78 | { |
79 | QTextStream qin(stdin, QFile::ReadOnly); |
80 | const char *prompt = "qs> " ; |
81 | |
82 | forever { |
83 | QString line; |
84 | |
85 | printf(format: "%s" , prompt); |
86 | fflush(stdout); |
87 | |
88 | line = qin.readLine(); |
89 | if (line.isNull()) |
90 | break; |
91 | |
92 | if (line.trimmed().isEmpty()) |
93 | continue; |
94 | |
95 | line += QLatin1Char('\n'); |
96 | |
97 | QJSValue result = eng->evaluate(program: line, fileName: QLatin1String("typein" )); |
98 | |
99 | fprintf(stderr, format: "%s\n" , qPrintable(result.toString())); |
100 | |
101 | if (CommandInterface::wantsToQuit()) |
102 | break; |
103 | } |
104 | } |
105 | |
106 | int main(int argc, char *argv[]) |
107 | { |
108 | QCoreApplication app(argc, argv); |
109 | QScopedPointer<QJSEngine> eng(new QJSEngine()); |
110 | { |
111 | QJSValue globalObject = eng->globalObject(); |
112 | QJSValue interface = eng->newQObject(object: new CommandInterface); |
113 | globalObject.setProperty(name: "qt" , value: interface); |
114 | } |
115 | |
116 | if (! *++argv) { |
117 | interactive(eng: eng.data()); |
118 | return EXIT_SUCCESS; |
119 | } |
120 | |
121 | while (const char *arg = *argv++) { |
122 | QString fileName = QString::fromLocal8Bit(str: arg); |
123 | |
124 | if (fileName == QLatin1String("-i" )) { |
125 | interactive(eng: eng.data()); |
126 | break; |
127 | } |
128 | |
129 | QString contents; |
130 | int lineNumber = 1; |
131 | |
132 | if (fileName == QLatin1String("-" )) { |
133 | QTextStream stream(stdin, QFile::ReadOnly); |
134 | contents = stream.readAll(); |
135 | } else { |
136 | QFile file(fileName); |
137 | if (file.open(flags: QFile::ReadOnly)) { |
138 | QTextStream stream(&file); |
139 | contents = stream.readAll(); |
140 | file.close(); |
141 | |
142 | // strip off #!/usr/bin/env qjs line |
143 | if (contents.startsWith(s: "#!" )) { |
144 | contents.remove(i: 0, len: contents.indexOf(s: "\n" )); |
145 | ++lineNumber; |
146 | } |
147 | } |
148 | } |
149 | |
150 | if (contents.isEmpty()) |
151 | continue; |
152 | |
153 | QJSValue result = eng->evaluate(program: contents, fileName, lineNumber); |
154 | if (result.isError()) { |
155 | fprintf (stderr, format: " %s\n\n" , qPrintable(result.toString())); |
156 | return EXIT_FAILURE; |
157 | } |
158 | } |
159 | |
160 | return EXIT_SUCCESS; |
161 | } |
162 | |
163 | #include <main.moc> |
164 | |