gecko-dev/js/rhino/examples/RunScript.java

77 lines
2.7 KiB
Java

/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Rhino code, released
* May 6, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
import org.mozilla.javascript.*;
/**
* RunScript: simplest example of controlling execution of Rhino.
*
* Collects its arguments from the command line, executes the
* script, and prints the result.
*
* @author Norris Boyd
*/
public class RunScript {
public static void main(String args[])
throws JavaScriptException
{
// Creates and enters a Context. The Context stores information
// about the execution environment of a script.
Context cx = Context.enter();
try {
// Initialize the standard objects (Object, Function, etc.)
// This must be done before scripts can be executed. Returns
// a scope object that we use in later calls.
Scriptable scope = cx.initStandardObjects(null);
// Collect the arguments into a single string.
String s = "";
for (int i=0; i < args.length; i++) {
s += args[i];
}
// Now evaluate the string we've colected.
Object result = cx.evaluateString(scope, s, "<cmd>", 1, null);
// Convert the result to a string and print it.
System.err.println(cx.toString(result));
} finally {
// Exit from the context.
Context.exit();
}
}
}