Improved scripting support.

This commit is contained in:
sk89q 2011-01-22 13:34:05 -08:00
parent c9f8a8fe13
commit 9e0bb0730c
13 changed files with 633 additions and 33 deletions

View File

@ -16,6 +16,7 @@
<include name="Bukkit.jar" /> <include name="Bukkit.jar" />
<include name="GroupUsers.jar" /> <include name="GroupUsers.jar" />
<include name="Permissions.jar" /> <include name="Permissions.jar" />
<include name="js.jar" />
</fileset> </fileset>
<target name="init"> <target name="init">
@ -38,7 +39,7 @@
<attribute name="Implementation-Title" value="WorldEdit"/> <attribute name="Implementation-Title" value="WorldEdit"/>
<attribute name="Implementation-Version" value="${version}"/> <attribute name="Implementation-Version" value="${version}"/>
<attribute name="WorldEdit-Version" value="${version}"/> <attribute name="WorldEdit-Version" value="${version}"/>
<attribute name="Class-Path" value="truezip.jar WorldEdit/truezip.jar"/> <attribute name="Class-Path" value="truezip.jar WorldEdit/truezip.jar js.jar WorldEdit/js.jar"/>
<!--<attribute name="Main-Class" value="com.sk89q.worldedit.cli.Main"/>--> <!--<attribute name="Main-Class" value="com.sk89q.worldedit.cli.Main"/>-->
</manifest> </manifest>
<delete file="${build.dir}/plugin.yml"/> <delete file="${build.dir}/plugin.yml"/>

View File

@ -19,6 +19,7 @@
package com.sk89q.worldedit; package com.sk89q.worldedit;
import java.util.HashSet;
import java.util.Set; import java.util.Set;
import com.sk89q.worldedit.snapshots.SnapshotRepository; import com.sk89q.worldedit.snapshots.SnapshotRepository;
@ -36,7 +37,7 @@ public abstract class LocalConfiguration {
}; };
public boolean profile = false; public boolean profile = false;
public Set<Integer> disallowedBlocks = null; public Set<Integer> disallowedBlocks = new HashSet<Integer>();
public int defaultChangeLimit = -1; public int defaultChangeLimit = -1;
public int maxChangeLimit = -1; public int maxChangeLimit = -1;
public String shellSaveType = null; public String shellSaveType = null;
@ -54,6 +55,7 @@ public abstract class LocalConfiguration {
public boolean useInventoryOverride = false; public boolean useInventoryOverride = false;
public int navigationWand = 345; public int navigationWand = 345;
public int navigationWandMaxDistance = 50; public int navigationWandMaxDistance = 50;
public int scriptTimeout = 3000;
/** /**
* Loads the configuration. * Loads the configuration.

View File

@ -22,20 +22,19 @@ package com.sk89q.worldedit;
import java.util.List; import java.util.List;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.HashMap; import java.util.HashMap;
import java.util.Map;
import java.util.Set; import java.util.Set;
import java.util.HashSet; import java.util.HashSet;
import java.util.logging.Level; import java.util.logging.Level;
import java.util.logging.Logger; import java.util.logging.Logger;
import java.io.*; import java.io.*;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException; import javax.script.ScriptException;
import com.sk89q.util.StringUtil; import com.sk89q.util.StringUtil;
import com.sk89q.worldedit.bags.BlockBag; import com.sk89q.worldedit.bags.BlockBag;
import com.sk89q.worldedit.blocks.*; import com.sk89q.worldedit.blocks.*;
import com.sk89q.worldedit.data.*; import com.sk89q.worldedit.data.*;
import com.sk89q.worldedit.filters.*; import com.sk89q.worldedit.filters.*;
import com.sk89q.worldedit.scripting.ScriptContext; import com.sk89q.worldedit.scripting.*;
import com.sk89q.worldedit.snapshots.*; import com.sk89q.worldedit.snapshots.*;
import com.sk89q.worldedit.superpickaxe.*; import com.sk89q.worldedit.superpickaxe.*;
import com.sk89q.worldedit.regions.*; import com.sk89q.worldedit.regions.*;
@ -2149,44 +2148,61 @@ public class WorldEditController {
String script; String script;
try { try {
FileInputStream file = new FileInputStream(f); InputStream file;
DataInputStream in = new DataInputStream (file);
if (!f.exists()) {
file = WorldEditController.class.getResourceAsStream(
"craftscripts/" + filename);
if (file == null) {
player.printError("Script does not exist: " + filename);
return;
}
} else {
file = new FileInputStream(f);
}
DataInputStream in = new DataInputStream(file);
byte[] data = new byte[in.available()]; byte[] data = new byte[in.available()];
in.readFully(data); in.readFully(data);
in.close (); in.close();
script = new String(data, 0, data.length, "utf-8"); script = new String(data, 0, data.length, "utf-8");
} catch (FileNotFoundException e) {
player.printError("Script does not exist: " + filename);
return;
} catch (IOException e) { } catch (IOException e) {
player.printError("Script read error: " + e.getMessage()); player.printError("Script read error: " + e.getMessage());
return; return;
} }
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByExtension(ext);
if (engine == null) {
player.printError("Failed to load the scripting engine.");
return;
}
LocalSession session = getSession(player); LocalSession session = getSession(player);
ScriptContext context = new ScriptContext(this, server, config, session, player); CraftScriptContext scriptContext =
new CraftScriptContext(this, server, config, session, player);
engine.put("argv", args); CraftScriptEngine engine = null;
engine.put("ctx", context);
engine.put("player", player);
engine.put("BaseBlock", BaseBlock.class);
try { try {
engine.eval(script); engine = new RhinoCraftScriptEngine();
} catch (NoClassDefFoundError e) {
try {
engine = new SunRhinoCraftScriptEngine();
} catch (NoClassDefFoundError e2) {
player.printError("Failed to find an installed script engine.");
return;
}
}
engine.setTimeLimit(3000);
Map<String, Object> vars = new HashMap<String, Object>();
vars.put("argv", args);
vars.put("context", scriptContext);
vars.put("player", player);
try {
engine.evaluate(script, filename, vars);
} catch (ScriptException e) { } catch (ScriptException e) {
e.printStackTrace(); player.printError("Failed to execute:");
player.printError("Script encountered an error: " + e.getMessage()); player.printRaw(e.getMessage());
return;
} finally { } finally {
for (EditSession editSession : context._getEditSessions()) { for (EditSession editSession : scriptContext._getEditSessions()) {
session.remember(editSession); session.remember(editSession);
} }
} }

View File

@ -65,6 +65,8 @@ public class BukkitConfiguration extends LocalConfiguration {
navigationWand = config.getInt("navigation-wand.item", navigationWand); navigationWand = config.getInt("navigation-wand.item", navigationWand);
navigationWandMaxDistance = config.getInt("navigation-wand.max-distance", navigationWandMaxDistance); navigationWandMaxDistance = config.getInt("navigation-wand.max-distance", navigationWandMaxDistance);
scriptTimeout = config.getInt("scripting.timeout", scriptTimeout);
disallowedBlocks = new HashSet<Integer>(config.getIntList("limits.disallowed-blocks", null)); disallowedBlocks = new HashSet<Integer>(config.getIntList("limits.disallowed-blocks", null));
String snapshotsDir = config.getString("snapshots.directory", ""); String snapshotsDir = config.getString("snapshots.directory", "");

View File

@ -31,10 +31,10 @@ import com.sk89q.worldedit.UnknownItemException;
import com.sk89q.worldedit.WorldEditController; import com.sk89q.worldedit.WorldEditController;
import com.sk89q.worldedit.blocks.BaseBlock; import com.sk89q.worldedit.blocks.BaseBlock;
public class ScriptContext extends ScriptEnvironment { public class CraftScriptContext extends CraftScriptEnvironment {
private List<EditSession> editSessions = new ArrayList<EditSession>(); private List<EditSession> editSessions = new ArrayList<EditSession>();
public ScriptContext(WorldEditController controller, public CraftScriptContext(WorldEditController controller,
ServerInterface server, LocalConfiguration config, ServerInterface server, LocalConfiguration config,
LocalSession session, LocalPlayer player) { LocalSession session, LocalPlayer player) {
super(controller, server, config, session, player); super(controller, server, config, session, player);

View File

@ -0,0 +1,30 @@
// $Id$
/*
* WorldEdit
* Copyright (C) 2010 sk89q <http://www.sk89q.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.scripting;
import java.util.Map;
import javax.script.ScriptException;
public interface CraftScriptEngine {
public void setTimeLimit(int milliseconds);
public int getTimeLimit();
public Object evaluate(String script, String filename, Map<String, Object> args)
throws ScriptException;
}

View File

@ -25,14 +25,14 @@ import com.sk89q.worldedit.LocalSession;
import com.sk89q.worldedit.ServerInterface; import com.sk89q.worldedit.ServerInterface;
import com.sk89q.worldedit.WorldEditController; import com.sk89q.worldedit.WorldEditController;
public abstract class ScriptEnvironment { public abstract class CraftScriptEnvironment {
protected WorldEditController controller; protected WorldEditController controller;
protected LocalPlayer player; protected LocalPlayer player;
protected LocalConfiguration config; protected LocalConfiguration config;
protected LocalSession session; protected LocalSession session;
protected ServerInterface server; protected ServerInterface server;
public ScriptEnvironment(WorldEditController controller, ServerInterface server, public CraftScriptEnvironment(WorldEditController controller, ServerInterface server,
LocalConfiguration config, LocalSession session, LocalPlayer player) { LocalConfiguration config, LocalSession session, LocalPlayer player) {
this.controller = controller; this.controller = controller;
this.player = player; this.player = player;

View File

@ -0,0 +1,61 @@
// $Id$
/*
* WorldEdit
* Copyright (C) 2010 sk89q <http://www.sk89q.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.scripting;
import org.mozilla.javascript.*;
public class RhinoContextFactory extends ContextFactory {
protected int timeLimit;
public RhinoContextFactory(int timeLimit) {
this.timeLimit = timeLimit;
}
protected Context makeContext() {
RhinoContext cx = new RhinoContext(this);
cx.setInstructionObserverThreshold(10000);
return cx;
}
protected void observeInstructionCount(Context cx, int instructionCount) {
RhinoContext mcx = (RhinoContext)cx;
long currentTime = System.currentTimeMillis();
if (currentTime - mcx.startTime > timeLimit) {
throw new Error("Script timed out (" + timeLimit + "ms)");
}
}
protected Object doTopCall(Callable callable, Context cx, Scriptable scope,
Scriptable thisObj, Object[] args) {
RhinoContext mcx = (RhinoContext)cx;
mcx.startTime = System.currentTimeMillis();
return super.doTopCall(callable, cx, scope, thisObj, args);
}
private static class RhinoContext extends Context {
long startTime;
public RhinoContext(ContextFactory factory) {
super(factory);
}
}
}

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@ -0,0 +1,75 @@
// $Id$
/*
* WorldEdit
* Copyright (C) 2010 sk89q <http://www.sk89q.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.scripting;
import java.util.Map;
import javax.script.ScriptException;
import org.mozilla.javascript.*;
public class RhinoCraftScriptEngine implements CraftScriptEngine {
private int timeLimit;
@Override
public void setTimeLimit(int milliseconds) {
timeLimit = milliseconds;
}
@Override
public int getTimeLimit() {
return timeLimit;
}
@Override
public Object evaluate(String script, String filename, Map<String, Object> args)
throws ScriptException {
RhinoContextFactory factory = new RhinoContextFactory(timeLimit);
Context cx = factory.enterContext();
ScriptableObject scriptable = new ImporterTopLevel(cx);
Scriptable scope = cx.initStandardObjects(scriptable);
for (Map.Entry<String, Object> entry : args.entrySet()) {
ScriptableObject.putProperty(scope, entry.getKey(),
Context.javaToJS(entry.getValue(), scope));
}
try {
return cx.evaluateString(scope, script, filename, 1, null);
} catch (Error e) {
throw new ScriptException(e.getMessage());
} catch (RhinoException e) {
String msg;
int line = (line = e.lineNumber()) == 0 ? -1 : line;
if (e instanceof JavaScriptException) {
msg = String.valueOf(((JavaScriptException)e).getValue());
} else {
msg = e.getMessage();
}
ScriptException scriptException =
new ScriptException(msg, e.sourceName(), line);
scriptException.initCause(e);
throw scriptException;
} finally {
Context.exit();
}
}
}

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@ -0,0 +1,61 @@
// $Id$
/*
* WorldEdit
* Copyright (C) 2010 sk89q <http://www.sk89q.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.scripting;
import sun.org.mozilla.javascript.internal.*;
public class SunRhinoContextFactory extends ContextFactory {
protected int timeLimit;
public SunRhinoContextFactory(int timeLimit) {
this.timeLimit = timeLimit;
}
protected Context makeContext() {
RhinoContext cx = new RhinoContext(this);
cx.setInstructionObserverThreshold(10000);
return cx;
}
protected void observeInstructionCount(Context cx, int instructionCount) {
RhinoContext mcx = (RhinoContext)cx;
long currentTime = System.currentTimeMillis();
if (currentTime - mcx.startTime > timeLimit) {
throw new Error("Script timed out (" + timeLimit + "ms)");
}
}
protected Object doTopCall(Callable callable, Context cx, Scriptable scope,
Scriptable thisObj, Object[] args) {
RhinoContext mcx = (RhinoContext)cx;
mcx.startTime = System.currentTimeMillis();
return super.doTopCall(callable, cx, scope, thisObj, args);
}
private static class RhinoContext extends Context {
long startTime;
public RhinoContext(ContextFactory factory) {
super();
}
}
}

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@ -0,0 +1,82 @@
// $Id$
/*
* WorldEdit
* Copyright (C) 2010 sk89q <http://www.sk89q.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.scripting;
import java.util.Map;
import javax.script.ScriptException;
import com.sk89q.worldedit.WorldEditController;
import sun.org.mozilla.javascript.internal.*;
public class SunRhinoCraftScriptEngine implements CraftScriptEngine {
private int timeLimit;
@Override
public void setTimeLimit(int milliseconds) {
timeLimit = milliseconds;
}
@Override
public int getTimeLimit() {
return timeLimit;
}
@Override
public Object evaluate(final String script, final String filename,
final Map<String, Object> args)
throws ScriptException {
SunRhinoContextFactory factory = new SunRhinoContextFactory(timeLimit);
factory.initApplicationClassLoader(WorldEditController.class.getClassLoader());
try {
return factory.call(new ContextAction() {
public Object run(Context cx) {
Scriptable topLevel = new ImporterTopLevel(cx);
Scriptable scope = cx.initStandardObjects();
topLevel.setParentScope(scope);
for (Map.Entry<String, Object> entry : args.entrySet()) {
ScriptableObject.putProperty(scope, entry.getKey(),
Context.javaToJS(entry.getValue(), scope));
}
return cx.evaluateString(topLevel, script, filename, 1, null);
}
});
} catch (Error e) {
throw new ScriptException(e.getMessage());
} catch (RhinoException e) {
String msg;
int line = (line = e.lineNumber()) == 0 ? -1 : line;
if (e instanceof JavaScriptException) {
msg = String.valueOf(((JavaScriptException)e).getValue());
} else {
msg = e.getMessage();
}
ScriptException scriptException =
new ScriptException(msg, e.sourceName(), line);
scriptException.initCause(e);
throw scriptException;
}
}
}

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@ -0,0 +1,119 @@
// $Id$
/*
* WorldEdit
* Copyright (C) 2010 sk89q <http://www.sk89q.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.scripting.java;
import java.io.*;
import javax.script.*;
import org.mozilla.javascript.*;
import com.sk89q.worldedit.scripting.RhinoContextFactory;
public class RhinoScriptEngine extends AbstractScriptEngine {
private ScriptEngineFactory factory;
private Context cx;
public RhinoScriptEngine() {
RhinoContextFactory factory = new RhinoContextFactory(3000);
factory.enterContext();
}
public Bindings createBindings() {
return new SimpleBindings();
}
@Override
public Object eval(String script, ScriptContext context)
throws ScriptException {
Scriptable scope = setupScope(cx, context);
String filename = (filename = (String)get(ScriptEngine.FILENAME)) == null
? "<unknown>" : filename;
try {
return cx.evaluateString(scope, script, filename, 1, null);
} catch (RhinoException e) {
String msg;
int line = (line = e.lineNumber()) == 0 ? -1 : line;
if (e instanceof JavaScriptException) {
msg = String.valueOf(((JavaScriptException)e).getValue());
} else {
msg = e.getMessage();
}
ScriptException scriptException =
new ScriptException(msg, e.sourceName(), line);
scriptException.initCause(e);
throw scriptException;
} finally {
Context.exit();
}
}
@Override
public Object eval(Reader reader, ScriptContext context)
throws ScriptException {
Scriptable scope = setupScope(cx, context);
String filename = (filename = (String)get(ScriptEngine.FILENAME)) == null
? "<unknown>" : filename;
try {
return cx.evaluateReader(scope, reader, filename, 1, null);
} catch (RhinoException e) {
String msg;
int line = (line = e.lineNumber()) == 0 ? -1 : line;
if (e instanceof JavaScriptException) {
msg = String.valueOf(((JavaScriptException)e).getValue());
} else {
msg = e.getMessage();
}
ScriptException scriptException =
new ScriptException(msg, e.sourceName(), line);
scriptException.initCause(e);
throw scriptException;
} catch (IOException e) {
throw new ScriptException(e);
} finally {
Context.exit();
}
}
@Override
public ScriptEngineFactory getFactory() {
if (factory != null) {
return factory;
} else {
return new RhinoScriptEngineFactory();
}
}
private Scriptable setupScope(Context cx, ScriptContext context) {
ScriptableObject scriptable = new ImporterTopLevel(cx);
Scriptable scope = cx.initStandardObjects(scriptable);
//ScriptableObject.putProperty(scope, "argv", Context.javaToJS(args, scope));
return scope;
}
}

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@ -0,0 +1,151 @@
// $Id$
/*
* WorldEdit
* Copyright (C) 2010 sk89q <http://www.sk89q.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.scripting.java;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;
public class RhinoScriptEngineFactory implements ScriptEngineFactory {
private static List<String> names;
private static List<String> mimeTypes;
private static List<String> extensions;
static {
names = new ArrayList<String>(5);
names.add("ECMAScript");
names.add("ecmascript");
names.add("JavaScript");
names.add("javascript");
names.add("js");
names = Collections.unmodifiableList(names);
mimeTypes = new ArrayList<String>(4);
mimeTypes.add("application/ecmascript");
mimeTypes.add("text/ecmascript");
mimeTypes.add("application/javascript");
mimeTypes.add("text/javascript");
mimeTypes = Collections.unmodifiableList(mimeTypes);
extensions = new ArrayList<String>(2);
extensions.add("emcascript");
extensions.add("js");
extensions = Collections.unmodifiableList(extensions);
}
@Override
public String getEngineName() {
return "Rhino JavaScript Engine (SK)";
}
@Override
public String getEngineVersion() {
return "unknown";
}
@Override
public List<String> getExtensions() {
return extensions;
}
@Override
public String getLanguageName() {
return "EMCAScript";
}
@Override
public String getLanguageVersion() {
return "1.8";
}
@Override
public String getMethodCallSyntax(String obj, String m, String ... args) {
StringBuilder s = new StringBuilder();
s.append(obj);
s.append(".");
s.append(m);
s.append("(");
for (int i = 0; i < args.length; i++) {
s.append(args[i]);
if (i < args.length - 1) {
s.append(",");
}
}
s.append(")");
return s.toString();
}
@Override
public List<String> getMimeTypes() {
return mimeTypes;
}
@Override
public List<String> getNames() {
return names;
}
@Override
public String getOutputStatement(String str) {
return "print(" + str.replace("\\", "\\\\")
.replace("\"", "\\\\\"")
.replace(";", "\\\\;") + ")";
}
@Override
public Object getParameter(String key) {
if (key.equals(ScriptEngine.ENGINE)) {
return getEngineName();
} else if (key.equals(ScriptEngine.ENGINE_VERSION)) {
return getEngineVersion();
} else if (key.equals(ScriptEngine.NAME)) {
return getEngineName();
} else if (key.equals(ScriptEngine.LANGUAGE)) {
return getLanguageName();
} else if (key.equals(ScriptEngine.LANGUAGE_VERSION)) {
return getLanguageVersion();
} else if (key.equals("THREADING")) {
return "MULTITHREADED";
} else {
throw new IllegalArgumentException("Invalid key");
}
}
@Override
public String getProgram(String ... statements) {
StringBuilder s = new StringBuilder();
for (String stmt : statements) {
s.append(stmt);
s.append(";");
}
return s.toString();
}
@Override
public ScriptEngine getScriptEngine() {
return new RhinoScriptEngine();
}
}